A tool hardware rubber hammer with adjustable hammer body hardness

By designing an adjustable hardness rubber hammer, the problem of the non-adjustable hardness of existing rubber hammers has been solved, enabling flexible adjustment of the hammer head hardness and position, thus improving the applicability and ease of operation of the rubber hammer.

CN224425502UActive Publication Date: 2026-06-30TAIZHOU WEIMING MACHINERY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TAIZHOU WEIMING MACHINERY CO LTD
Filing Date
2025-05-22
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing rubber hammers have unadjustable hammer body hardness and limited functionality, making them difficult to adapt to complex and ever-changing work requirements.

Method used

Design a tool hardware rubber hammer with adjustable hammer body hardness. By setting two sets of hammer heads of different materials (rubber and plastic) and quick replacement with bolts, combined with a two-way threaded rod and gear transmission structure, the position and hardness of the hammer head can be flexibly adjusted.

Benefits of technology

It enables flexible adjustment of the hammer head hardness and position, improves the applicability and efficiency of rubber hammers, enhances the ease of operation and controllability, and adapts to the operational needs under different working conditions.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

This utility model relates to the field of hardware tool technology, specifically an adjustable hammer body rubber hammer, comprising a rectangular block; at least one set of sliding grooves, the sliding grooves being formed on the side end of the rectangular block; at least one set of threaded sliders, the threaded sliders being slidably connected within the sliding grooves; at least one set of threaded blocks, the threaded blocks being fixedly connected to the side end of the threaded sliders; at least one set of bolts, the bolts being threadedly connected within the threaded blocks, the side end of the bolts being fixedly connected to a damper, the side end of the damper being fixedly connected to a hammer head, and a spring being sleeved and connected to the circumferential surface of the damper, the side end of the spring matching the hammer head; through the linkage structure of the bidirectional threaded rod and the threaded slider, combined with the transmission design of the first gear and the second gear, the adjustment of the hammer head spacing is realized. This not only improves the tool's adaptability under different working conditions, but also enhances the convenience and controllability of operation.
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Description

Technical Field

[0001] This utility model relates to the field of hardware tool technology, and in particular to a tool hardware rubber hammer with adjustable hammer body hardness. Background Technology

[0002] In the field of hardware tools, rubber mallets are widely used in woodworking, decoration, assembly, repair, and other scenarios due to their advantages such as good cushioning performance and resistance to damage to the struck surface. Traditional rubber mallets typically consist of a hammerhead and a handle. The hammerhead is usually made of rubber or other flexible materials, making it suitable for light tapping operations where surface protection is a high priority.

[0003] As application scenarios diversify, users' functional requirements for rubber mallets are gradually increasing. For example, different working environments may require different striking intensities or hammerhead hardness. Therefore, some products on the market have attempted to meet certain adaptability requirements by changing the hammerhead or adding auxiliary structures. However, in actual use, these products still mainly rely on a single hammerhead configuration and lack a flexible adjustment mechanism for the hammer body hardness, making it difficult to fully adapt to complex and changing work needs.

[0004] In addition, to improve ease of operation and applicability, some rubber hammers have incorporated adjustable components in their structural design, such as adjustable connection angles and handle lengths. These improvements enhance the user experience to some extent, but there is still room for further optimization in areas such as hammer head position adjustment, quick replacement, and cushioning control during striking.

[0005] Therefore, a tool hardware rubber hammer with adjustable hammer body hardness is proposed to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to solve the problems of existing rubber hammers having unadjustable hammer body hardness and limited functionality, and to provide a tool hardware rubber hammer with a reasonable structure, convenient operation, and adjustable hammer body hardness with hammer head hardness switching and position adjustment functions.

[0007] This utility model achieves the above-mentioned objective through the following technical solution: an adjustable hammer body rubber hammer, comprising:

[0008] Rectangular block;

[0009] At least one set of sliding grooves, said sliding grooves being formed at the side ends of the rectangular block;

[0010] At least one set of threaded sliders, wherein the threaded sliders are slidably connected within a groove;

[0011] At least one set of threaded blocks, the threaded blocks being fixedly connected to the side end of the threaded slider;

[0012] At least one set of bolts, the bolts being threaded into a threaded block, a damper being fixedly connected to the side end of the bolts, a hammer being fixedly connected to the side end of the damper, and a spring being sleeved and connected to the circumferential surface of the damper, the side end of the spring being matched with the hammer.

[0013] Preferably, a bidirectional threaded rod is rotatably connected within the groove, the bidirectional threaded rod is connected to the threaded slider, and a first gear is fixedly connected to the side end of the bidirectional threaded rod.

[0014] Preferably, a connecting seat is fixedly connected to the side end of the rectangular block, a rotating rod is rotatably connected to the side end of the connecting seat, an adjusting handle is fixedly connected to the side end of the rotating rod, and a first gear is fixedly connected to the circumferential surface of the rotating rod, the first gear meshing with a second gear.

[0015] Preferably, a ratchet is connected to the side end of the rotating rod, and the ratchet engages with the rotating rod.

[0016] Preferably, a disassembly plate is provided on one side of the rectangular block, and a metal rod is threadedly connected to the other side of the rectangular block.

[0017] Preferably, the metal rod has a handle threaded to its side end, and the surface of the handle has anti-slip holes.

[0018] Preferably, the circumferential surface of the hammer head is provided with anti-slip grooves, and there are two sets of hammer heads, one made of rubber and the other of plastic.

[0019] The beneficial effects of this utility model are:

[0020] 1. This solution uses two sets of hammerheads made of different materials, rubber and plastic, which can be quickly replaced with bolts, allowing users to flexibly choose the hammer hardness according to actual work needs. In this way, when facing different impact intensities or material protection requirements, multiple tasks can be completed without changing the entire set of tools, improving the applicability and efficiency of the rubber hammer.

[0021] 2. This solution achieves the adjustment of the hammerhead spacing through the linkage structure of the bidirectional threaded rod and the threaded slider, combined with the transmission design of the first gear and the second gear. This not only improves the tool's adaptability under different working conditions, but also enhances the convenience and controllability of operation, enabling users to complete various hammering operations more efficiently and stably. Attached Figure Description

[0022] Figure 1 This is a perspective view of the present utility model;

[0023] Figure 2 This is an exploded view of the present invention;

[0024] Figure 3This utility model Figure 2 Exploded view of the central threaded slider;

[0025] Figure 4 This utility model Figure 3 A magnified view of a portion of the threaded slider.

[0026] In the diagram: 1. Rectangular block; 2. Slide groove; 3. Connecting seat; 4. Disassembly plate; 5. Threaded slider; 6. Threaded block; 7. Bolt; 8. Damper; 9. Spring; 10. Hammer; 11. Anti-slip groove; 12. Metal rod; 13. Handle; 14. Anti-slip hole; 15. Double-sided threaded rod; 16. First gear; 17. Second gear; 18. Rotating rod; 19. Adjusting handle; 20. Ratchet. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1

[0029] Please see Figure 1-4 The present invention provides the following technical solution:

[0030] A tool hardware rubber hammer with adjustable hammer body hardness, comprising:

[0031] Rectangular block 1;

[0032] At least one set of slides 2, which are opened at the side ends of the rectangular block 1;

[0033] At least one set of threaded sliders 5, which are slidably connected within the groove 2;

[0034] At least one set of threaded blocks 6, the threaded blocks 6 being fixedly connected to the side end of the threaded slider 5;

[0035] At least one set of bolts 7 are threaded into the threaded block 6. A damper 8 is fixedly connected to the side end of the bolt 7. A hammer head 10 is fixedly connected to the side end of the damper 8. A spring 9 is sleeved on the circumferential surface of the damper 8. The side end of the spring 9 matches the hammer head 10.

[0036] In a specific embodiment of this utility model, when a user wants to adjust the position of the hammer head 10 to adapt to different work requirements, they first rotate the bidirectional threaded rod 15, causing the threaded slider 5 in the slide groove 2 to slide along the slide groove 2. This causes the threaded slider 5 to move synchronously with the threaded block 6 fixed thereon, thereby adjusting the position of the hammer head 10 so that it can move up and down on the side of the rectangular block 1. When it is necessary to replace or adjust the hardness of the hammer head 10: when it is necessary to select a hammer head 10 with different hardness according to the specific work task, the user can loosen the bolt 7 and unscrew it from the threaded block 6. This allows for easy disassembly of the damper 8 and the hammer head 10 connected to it, and replacement with a rubber or plastic hammer head 10 as needed. After reinstalling the new hammer head 10, the bolt 7 is screwed back into the threaded block 6 to ensure a secure connection. Through this quick replacement mechanism, the user can flexibly adjust the hardness of the hammer head 10 according to actual needs, improving work efficiency. When using the tool for striking: When it is necessary to use the tool for striking, the user holds the handle 13 and rotates the lever 18 by adjusting the handle 19, so that the first gear 16 and the second gear 17 mesh, thereby driving the bidirectional threaded rod 15 to rotate; in this way, the bidirectional threaded rod 15 drives the threaded slider 5 to slide along the slide groove 2, precisely adjusting the position of the hammer head 10; when the hammer head 10 is adjusted into place, the design of the spring 9 sleeved on the circumferential surface of the damper 8 can provide a buffering effect during striking, reducing the impact of the reaction force on the user's wrist; thus, through the synergistic effect of the damper 8 and the spring 9, not only is the comfort of striking operation improved, but the service life of the tool is also effectively extended. When further fine-tuning of the angle or position of the hammer head 10 is required: When a more precise adjustment of the angle or position of the hammer head 10 is needed, the user can make a small angle adjustment through the engagement of the ratchet 20 and the rotating rod 18; In this way, through this precision adjustment mechanism, it can be ensured that the hammer head 10 can be firmly fixed at any required angle, meeting the needs of various complex working environments; After all adjustments are completed, the user can use the additional gripping force provided by the anti-slip hole 14 to operate the tool more stably, improving work efficiency and safety.

[0037] Please refer to the details. Figure 1-4 A bidirectional threaded rod 15 is rotatably connected inside the slide groove 2. The bidirectional threaded rod 15 is connected to the threaded slider 5. A first gear 16 is fixedly connected to the side end of the bidirectional threaded rod 15.

[0038] In this embodiment: when it is necessary to adjust the spacing or position between the hammer heads 10, the user rotates the bidirectional threaded rod 15, causing it to rotate within the slide groove 2. Since the bidirectional threaded rod 15 is connected to the threaded slider 5 and has a symmetrical left and right threaded structure, it can drive the two threaded sliders 5 to move synchronously inward or outward, thus adjusting the spacing between the hammer heads 10. When the bidirectional threaded rod 15 rotates, the first gear 16 fixedly connected to its side also rotates, and can mesh with other transmission components such as the second gear 17 to form a linkage structure. Thus, by cooperating with the external transmission mechanism through the first gear 16, the adjustment process can be further amplified or controlled, improving the effortlessness and accuracy of the operation. This structural design not only improves the flexibility and stability of the hammer head 10 position adjustment but also provides basic support for subsequent automated or linkage adjustments.

[0039] Please refer to the details. Figure 1-4 A connecting seat 3 is fixedly connected to the side end of the rectangular block 1. A rotating rod 18 is rotatably connected to the side end of the connecting seat 3. An adjusting handle 19 is fixedly connected to the side end of the rotating rod 18. A first gear 16 is fixedly connected to the circumferential surface of the rotating rod 18. The first gear 16 meshes with the second gear 17.

[0040] In this embodiment: when the position of the hammer head 10 needs to be adjusted, the user operates the adjustment handle 19 fixed to the side of the rotating rod 18, causing the rotating rod 18 to rotate. The rotating rod 18 rotates synchronously through the first gear 16 fixedly connected to its circumferential surface, and forms a transmission linkage with the meshing second gear 17, transmitting rotational power to other functional components such as the bidirectional threaded rod 15. As the rotating rod 18 continues to rotate, the first gear 16 drives the second gear 17 to rotate, thereby driving the adjustment mechanism connected to it to work, realizing the control of the spacing or angle of the hammer head 10. Thus, through the gear meshing transmission structure, not only is the stability and accuracy of the adjustment process improved, but the effortlessness and controllability of the operation are also enhanced. Furthermore, the connecting seat 3 is fixed to the side of the rectangular block 1, ensuring the stable connection between the rotating rod 18 and the overall structure, making the force evenly distributed and the operation smooth during adjustment. In summary, this structure, through the design of the adjustment handle 19, the rotating rod 18, and the gear meshing transmission, achieves convenience and linkage in hammer head adjustment operation, improving the adaptability and user experience of the rubber hammer in different application scenarios.

[0041] Please refer to the details. Figure 1-4 A ratchet 20 is connected to the side end of the rotating rod 18, and the ratchet 20 meshes with the rotating rod 18.

[0042] In this embodiment: when the user operates the adjustment handle 19 to rotate the rotating rod 18, the ratchet 20 fixed to its side rotates synchronously. Since the ratchet 20 and the rotating rod 18 are meshed, a one-way locking function is achieved, preventing the rotating rod from rotating back due to external force during adjustment, thus ensuring the stability and reliability of the hammer head 10 position adjustment. When rotation stops and the adjustment handle 19 is released, the ratchet 20 automatically enters the locking state, restricting the rotating rod 18 from rotating in the opposite direction, keeping the hammer head 10 in the set position and preventing deviation or loosening. Thus, when fine-tuning or maintaining a specific angle for striking operations is required, this structure effectively improves the accuracy and operational safety of the rubber hammer. In summary, by setting a ratchet 20 meshing with the rotating rod 18 at its side, not only is the self-locking performance of the adjustment mechanism enhanced, but the stability and ease of operation of the tool in practical applications are further improved.

[0043] Please refer to the details. Figure 1-4 A disassembly plate 4 is provided on one side of the rectangular block 1, and a metal rod 12 is threadedly connected to the other side of the rectangular block 1.

[0044] In this embodiment: when maintenance, component replacement, or structural adjustment of the rubber hammer is required, the user can first remove the disassembly plate 4 located at one end of the rectangular block 1. This exposes key components such as the internal sliding groove 2, threaded slider 5, and bidirectional threaded rod 15, facilitating cleaning, maintenance, or replacement of the hammer head 10, thus improving the maintainability and service life of the overall device. After internal adjustments or replacements are completed, the user can connect the metal rod 12 to the other end of the rectangular block 1 via a threaded connection to install the handle 13 or other external gripping components. In this way, the metal rod 12 not only enhances the stability of the overall structure but also provides the user with a solid operating fulcrum, making the striking operation more labor-saving and efficient. Through this design, the disassembly plate 4 and the metal rod 12 are respectively located at both ends of the rectangular block 1, achieving a reasonable layout in terms of structural function, taking into account the ease of assembly, functional expansion, and safety of use of the equipment.

[0045] Please refer to the details. Figure 1-4 The metal rod 12 has a handle 13 threaded to its side end, and the surface of the handle 13 has anti-slip holes 14.

[0046] In this embodiment: when the user needs to hold the rubber hammer for striking operations, the handle 13, which is threaded to the side of the metal rod 12, provides a stable and ergonomic operating component. This allows the user to firmly grip the tool, preventing slippage when applying force, thus improving operational safety and control precision. When used in high-intensity or long-term working environments, the anti-slip holes 14 on the surface of the handle 13 further enhance the friction between the hand and the tool. These anti-slip holes 14 not only help distribute grip pressure but also effectively prevent slippage caused by hand sweat or external oil, improving comfort and safety. Furthermore, the threaded connection of the handle 13 to the metal rod 12 facilitates disassembly and replacement, or allows for the replacement of handles of different shapes and materials according to usage needs, enhancing the rubber hammer's adaptability in various application scenarios. In summary, this structure, through the threaded connection between the handle 13 and the metal rod 12, combined with the design of the surface anti-slip holes 14, not only improves grip stability and operational comfort but also enhances the tool's functional expandability and practicality.

[0047] Please refer to the details. Figure 1-4 The circumferential surface of the hammer head 10 is provided with anti-slip grooves 11, and there are two sets of hammer heads 10, one made of rubber and the other of plastic.

[0048] In this embodiment: when the hammer head 10 is performing a striking operation, the anti-slip groove 11 on its circumferential surface can effectively increase the friction between the hammer body and the object being struck; thus, slippage can be prevented during the striking process, improving the stability and safety of operation, especially suitable for striking scenarios on irregular or smooth surfaces; the hammer head 10 is configured with two sets, made of rubber and plastic materials respectively, which users can choose to replace according to actual usage needs; thus, the rubber hammer head has good cushioning performance and is suitable for soft striking occasions where surface damage needs to be avoided, while the plastic hammer head has higher hardness and impact strength and is suitable for operation scenarios with higher requirements for wear resistance and striking force; through this design, the hammer head 10 not only has good functionality and adaptability, but also realizes flexible switching under different working conditions, improving the overall practicality and application range of the rubber hammer.

[0049] When using, install the bidirectional threaded rod 15 in the slide groove 2 and ensure that it is properly engaged with the threaded slider 5; check whether the first gear 16 and the second gear 17 are properly meshed; the rotating rod 18 and the adjusting handle 19 should be able to rotate freely, and the ratchet 20 should be in the normal locked state; if the hammer head 10 needs to be replaced, first loosen the bolt 7, remove the original hammer head and replace it with a new hammer head of the required material, rotate the adjusting handle 19 to drive the rotating rod 18 to rotate; the first gear 16 rotates synchronously with the rotating rod and drives the second gear 17; the bidirectional threaded rod 15 rotates accordingly, driving the two threaded sliders 5 to move in opposite directions along the slide groove 2; the threaded sliders 5 drive the threaded block 6 and the hammer head 10 to adjust the spacing, and when the hammer head 10 reaches the appropriate distance... After positioning, stop rotating the adjusting handle 19; the ratchet 20 automatically locks to prevent rotation, ensuring the hammer head position is stable; for fine adjustments, the ratchet 20 can be manually adjusted manually; hold the handle 13 and use the anti-slip holes 14 on the surface to enhance grip stability; the damper 8 and spring 9 work together to absorb some of the impact force during striking, reducing the reaction force on the wrist; when using a rubber hammer head, it is suitable for soft striking such as woodworking and plastic parts assembly; when using a plastic hammer head, it is suitable for striking hard materials such as metal parts correction; loosen the bolt 7 and remove the old hammer head 10 from the damper 8; after replacing it with a hammer head 10 of another material, retighten the bolt 7; ensure that the new hammer head is firmly installed and in good contact with the spring 9.

[0050] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A tool hardware rubber mallet with adjustable mallet hardness, characterized by, include: Rectangular block (1); At least one set of slide grooves (2) are provided at the side end of the rectangular block (1); At least one set of threaded sliders (5), which are slidably connected in the groove (2); At least one set of threaded blocks (6), said threaded blocks (6) being fixedly connected to the side end of the threaded slider (5); At least one set of bolts (7) are threaded into a threaded block (6). A damper (8) is fixedly connected to the side end of the bolt (7). A hammer (10) is fixedly connected to the side end of the damper (8). A spring (9) is sleeved on the circumferential surface of the damper (8). The side end of the spring (9) matches the hammer (10).

2. The adjustable hardness rubber hammer according to claim 1, characterized in that: A bidirectional threaded rod (15) is rotatably connected inside the groove (2). The bidirectional threaded rod (15) is connected to the threaded slider (5). A first gear (16) is fixedly connected to the side end of the bidirectional threaded rod (15).

3. The adjustable hardness rubber hammer according to claim 2, characterized in that: The rectangular block (1) is fixedly connected to a connecting seat (3) on its side end. The connecting seat (3) is rotatably connected to a rotating rod (18) on its side end. The rotating rod (18) is fixedly connected to an adjusting handle (19) on its side end. The rotating rod (18) is fixedly connected to a first gear (16) on its circumferential surface. The first gear (16) meshes with a second gear (17).

4. The adjustable hardness rubber hammer according to claim 3, characterized in that: The side end of the rotating rod (18) is connected to a ratchet (20), which meshes with the rotating rod (18).

5. The adjustable hardness rubber hammer according to claim 4, characterized in that: A disassembly plate (4) is provided on one side of the rectangular block (1), and a metal rod (12) is threadedly connected to the other side of the rectangular block (1).

6. The adjustable hardness rubber hammer according to claim 5, characterized in that: The metal rod (12) has a handle (13) threaded to its side end, and the surface of the handle (13) has anti-slip holes (14).

7. The adjustable hardness rubber hammer according to claim 6, characterized in that: The circumferential surface of the hammer head (10) is provided with anti-slip grooves (11), and there are two sets of hammer heads (10), one made of rubber and the other of plastic.