Product Detail Page

Product Name: Single-sheave Block, Double-sheave Block, Three-eye Block – Upgrade Parts for Wooden Ship Models

Model: Black Walnut、Red cherry、Ordinary three eye pulley

Batch Number: 2025042125

Series: Universal

Manufacturing Difficulty: Intermediate

Applicable Crowd: 14+

Recommended Tools: 【Single-hole Block】 The core function of a single-hole block is to change the direction of rope tension and has no labor-saving effect. On ship models, it is usually fixed at the top of the mast, the edge of the ship's side or the fixed fulcrum of the deck, and is used to guide the direction of the rigging and cables. For example, after the rigging of a sailing ship model hangs down from the sail surface, it turns to the deck through the single-hole block at the top of the mast, allowing the operator to pull downward at the deck position to lift the sail upward, which greatly improves the convenience of operation. 【Double-hole Block】 There are two common designs of double-hole blocks: one is two blocks arranged coaxially side by side, and the other is an integrated block with two independent guide holes. Its core functions are divided into two categories: 1. Simple labor-saving + wire separation and guidance. When used as a movable block (the block moves with the rope), the double-hole structure can share the rope tension to achieve mild labor-saving, which is suitable for adjusting the tightness of the sail surface of the ship model； 2. Double-rope separation + synchronous adjustment. When used as a fixed block, the two holes can guide two independent ropes to avoid rigging entanglement and realize synchronous fine-tuning of two stress points. For example, the side gun port ropes of the model are pulled separately through the double-hole block to achieve synchronous opening and closing of multiple gun ports. 【Three-hole Block】 The three-hole block is a "multi-functional component" in ship model rigging, which plays the role of changing tension direction and transmitting traction force. It is usually designed as a coaxial triple block or three guide holes. Its core functions are multi-line linkage + high-efficiency labor-saving, and it is mainly used in the rigging system of complex ship models: 1. Orderly guidance of multiple ropes. The three holes can guide three independent ropes at the same time to solve the entanglement problem of complex rigging. It is common in models with main sails, foresails and side sails to realize independent adjustment of multiple sails；2. Labor-saving and efficiency improvement of pulley blocks. Combining multiple three-hole blocks into a pulley block can significantly amplify the labor-saving effect, which is suitable for pulling heavy components on ship models (such as anchor chains and large canvas of simulated ship models)；3. Multi-point stress balance. At the bottom of the ship model mast or the rigging intersection of the deck, the three-hole block can disperse the rope tension to avoid damage to model components caused by excessive single-point stress and improve the stability of the rigging system. For example, fixing the side shrouds or stays of the model to the bearing plate and bulwark to adjust the tension direction of the ropes to ensure reasonable stress on the rigging；During installation, the block is clamped into the stay ring and fixed with copper nails to form a stable pulley block, which reduces friction and improves transmission efficiency, making the rope movement smoother during model simulation.

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