Novel wrench assembly

Abstract

The utility model belongs to the technical field of wrenches, and particularly discloses a novel wrench assembly which comprises a storage rack, a handle is fixedly connected to the top of the storage rack, a lifting toothed plate is slidably connected to the inner side of the storage rack through a lifting mechanism, a connecting seat is fixedly connected to the bottom of the lifting toothed plate, an L-shaped wrench is arranged on the outer surface of the connecting seat, and a handle is arranged on the L-shaped wrench. A plurality of sets of adaptive interfaces are formed in the outer surface of the L-shaped wrench, a stable limiting mechanism is arranged on the outer surface of the storage frame, and the lifting mechanism comprises a worm rotationally connected to the inner surface of the storage frame. According to the novel wrench assembly, the multiple sets of adaptive connectors of the wrench allow a user to select proper connectors according to the types of screws, the inconvenience that a screwdriver head connector needs to be frequently replaced in a traditional tool is avoided, the L-shaped wrench can achieve accurate operation in a narrow and large-depth space through the lifting mechanism, and the use is convenient. The problem that a fixed-length tool cannot reach the deep position is solved, and the flexibility of the device is improved.

Description

Technical Field

[0001] This application relates to the technical field of wrenches, and specifically to a new type of wrench assembly. Background Art

[0002] A screwdriver head wrench is a tool that combines the functions of a screwdriver and a wrench, aiming to provide greater flexibility and convenience. It is usually used in occasions where operations need to be carried out in narrow or hard-to-reach positions, and it is widely used in fields such as automotive repair, home repair, and industrial maintenance.

[0003] Existing screwdriver head wrenches are basically designed with a fixed length. During use, they need to be used with a screwdriver head adapter, which is relatively inconvenient. Moreover, when the wrench is used to disassemble screws in a small space and at a relatively deep depth, the screwdriver head wrench with a fixed length may not be able to reach the corresponding position, making it difficult to operate smoothly in a narrow space, which limits the flexibility of the tool. Content of the Utility Model

[0004] In view of this, the purpose of the present utility model is to solve the disadvantages in the background art and propose a new type of wrench assembly to solve the problems existing in the prior art.

[0005] To achieve the above purpose, the present utility model provides a new type of wrench assembly, including a storage rack. The top of the storage rack is fixedly connected with a handle. The inner side of the storage rack is slidably connected with a lifting toothed plate through a lifting mechanism. The bottom of the lifting toothed plate is fixedly connected with a connecting seat. The outer surface of the connecting seat is provided with an L-shaped wrench. The outer surface of the L-shaped wrench is provided with several groups of adapter interfaces. The outer surface of the storage rack is provided with a stable limiting mechanism. The L-shaped wrench is designed with screwdriver head adapter interfaces on three end faces, and different interfaces can be selected according to the usage situation. The most commonly used adapter interface is arranged on the end face close to the right-angle corner.

[0006] Preferably, the lifting mechanism includes a worm rotatably connected to the inner surface of the storage rack. One end of the worm away from the storage rack is provided with a turntable. The L-shaped wrench can be extended through the lifting mechanism to smoothly reach the screw part in a narrow and deep space.

[0007] Preferably, a rotating shaft is rotatably connected to the inner wall of the storage rack. The outer surface of the rotating shaft is fixedly sleeved with a worm gear, and the outer surface of the worm gear is meshed with the outer surface of the worm.

[0008] Preferably, the stable limiting mechanism includes a ratchet fixedly sleeved on one end of the rotating shaft away from the storage rack. The outer surface of the storage rack is fixedly connected with a first fixed shaft. The L-shaped wrench after adjusting the position can be stabilized through the stable limiting mechanism to prevent it from shaking or shifting during the process of screwing the screw.

[0009] Preferably, a pawl is rotatably connected to the outer surface of the first fixed shaft, and a second fixed shaft is fixedly connected to the outer surface of the storage rack.

[0010] Preferably, a spring flap is provided on the outer surface of the second fixed shaft.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. For this new type of wrench assembly, multiple matching interfaces of the wrench allow users to select a suitable interface according to the screw model, avoiding the inconvenience of frequently replacing the screwdriver head joint of traditional tools. Moreover, through the lifting mechanism, the L-shaped wrench can achieve precise operation in narrow and deep spaces, avoiding the problem that tools with a fixed length cannot reach deep places, and improving the flexibility of the device.

[0013] 2. For this new type of wrench assembly, under the elastic reset action of the spring flap, the spring flap can push against the pawl so that its tip is stuck between the teeth of the ratchet wheel, thereby stably limiting the ratchet wheel, avoiding unnecessary up and down offset of the L-shaped wrench during operation, and improving the accuracy and efficiency of screwing the screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of this application;

[0015] Figure 2 It is a schematic diagram of the surface structure of the L-shaped wrench of this application;

[0016] Figure 3 It is a schematic diagram of the sectional structure of the storage rack of this application;

[0017] Figure 4 It is a schematic diagram of the surface structure of the ratchet wheel of this application.

[0018] Among them: 1. Storage rack; 2. Handle; 3. Lifting toothed plate; 4. Connecting seat; 5. L-shaped wrench; 6. Matching interface; 7. Worm; 8. Turntable; 9. Rotating shaft; 10. Worm gear; 11. Ratchet wheel; 12. First fixed shaft; 13. Pawl; 14. Second fixed shaft; 15. Spring flap. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of this application will be clearly and completely described in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0020] Please refer to Figures 1-4, a new type of wrench assembly, including a storage rack 1, a handle 2 is fixedly connected to the top of the storage rack 1, a lifting rack 3 is slidably connected to the inner side of the storage rack 1 through a lifting mechanism, a connecting seat 4 is fixedly connected to the bottom of the lifting rack 3, an L-shaped wrench 5 is arranged on the outer surface of the connecting seat 4, a number of adapter interfaces 6 are arranged on the outer surface of the L-shaped wrench 5, and a stable limiting mechanism is arranged on the outer surface of the storage rack 1.

[0021] Through the above technical solution, when the screwdriver bit wrench is in use, different interfaces can be selected according to the usage situation (that is, the screwdriver bit adapter interfaces 6 designed on the three end faces of the L-shaped wrench 5). The L-shaped wrench 5 can be extended through the lifting mechanism so that it can smoothly extend into a deeper and narrower space. The stable limiting mechanism can stably limit the L-shaped wrench 5 after the position is adjusted.

[0022] Specifically, the lifting mechanism includes a worm 7 rotatably connected to the inner surface of the storage rack 1, and a turntable 8 is arranged at one end of the worm 7 away from the storage rack 1.

[0023] Through the above technical solution, rotating the turntable 8 externally can drive the worm 7 to rotate, thereby driving the worm gear 10 meshed with it to rotate self.

[0024] Specifically, a rotating shaft 9 is rotatably connected to the inner wall of the storage rack 1, a worm gear 10 is fixedly sleeved on the outer surface of the rotating shaft 9, and the outer surface of the worm gear 10 is meshed with the outer surface of the worm 7.

[0025] Through the above technical solution, the worm gear 10 and the rotating shaft 9 are in a synchronous motion state, that is, the rotation of the worm gear 10 will drive the rotating shaft 9 to rotate synchronously, and the rotation of the rotating shaft 9 being stopped will also prevent the self-rotation of the worm gear 10.

[0026] Specifically, the stable limiting mechanism includes a ratchet 11 fixedly sleeved on one end of the rotating shaft 9 away from the storage rack 1, and a first fixed shaft 12 is fixedly connected to the outer surface of the storage rack 1.

[0027] Through the above technical solution, the design of the ratchet 11 and the pawl 13 is just adapted, that is, the tip of the pawl 13 can just be stuck between the teeth of the ratchet 11.

[0028] Specifically, a pawl 13 is rotatably connected to the outer surface of the first fixed shaft 12, and a second fixed shaft 14 is fixedly connected to the outer surface of the storage rack 1.

[0029] Through the above technical solution, under the elastic abutting action of the spring flap 15, the pawl 13 can be stably stuck between the teeth of the ratchet 11, thereby stably limiting the ratchet 11, that is, the rotating shaft 9 is synchronously limited.

[0030] Specifically, a spring flap 15 is arranged on the outer surface of the second fixed shaft 14.

[0031] Through the above technical solution, the spring pick 15 is usually made of high carbon steel or alloy steel, and can maintain good elasticity and strength after heat treatment (such as tempering). The design of the spring pick 15 usually meets the elasticity requirements of the spring, and the shape and thickness are precisely calculated to ensure that it can effectively restore its original shape when pressure is applied.

[0032] Working principle: During the use of the screwdriver head wrench, different adapter interfaces 6 can be selected according to the different types of screws to be screwed, that is, different types of screwdriver head adapter interfaces 6 are designed on the three end faces of the L-shaped wrench 5. When screwing, align the corresponding adapter interface 6 with the screw, then hold the handle 2 and rotate it. When using the L-shaped wrench 5 to screw a screw that is deep and in a relatively narrow space, first, it is necessary to open the pawl 13 to rotate it along the first fixed axis 12, so that the tip of the pawl 13 is no longer stuck between the teeth of the ratchet wheel 11, that is, the ratchet wheel 11 and the rotating shaft 9 are not limited, and then the turntable 8 can be rotated to drive the worm 7 to rotate. The worm 7 will rotate in conjunction with the worm wheel 10 during the rotation process, that is, the rotating shaft 9 will rotate with the The worm wheel 10 will drive the lifting tooth plate 3 to move downward gradually during the rotation process, thereby linking the lower end of the connecting seat 4 to move downward until the L-shaped spanner 5 is moved down to a suitable position so as to screw the corresponding screw. Before screwing the screw, the pawl 13 needs to be loosened. Under the elastic reset action of the spring paddle 15, the spring paddle 15 pushes the pawl 13 to rotate along the first fixed axis 12 until the tip of the pawl 13 is re-stuck between the teeth of the ratchet wheel 11, so that the ratchet wheel 11 can be stably limited, and the rotating shaft 9 is synchronously restricted from rotating, thereby indirectly stably limiting the L-shaped spanner 5 to avoid up and down deviation when screwing the screw, thereby improving the stability and flexibility of the device.

[0033] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A novel wrench assembly, comprising a storage rack (1), characterized in that: The top of the storage rack (1) is fixedly connected to a handle (2); the inner side of the storage rack (1) is slidably connected to a lifting tooth plate (3) via a lifting mechanism; the bottom of the lifting tooth plate (3) is fixedly connected to a connecting seat (4); an L-shaped wrench (5) is provided on the outer surface of the connecting seat (4); a plurality of groups of adapter interfaces (6) are provided on the outer surface of the L-shaped wrench (5); and a stabilizing limit mechanism is provided on the outer surface of the storage rack (1).

2. A new type of wrench assembly according to claim 1, characterized in that: The lifting mechanism comprises a worm (7) rotatably connected to the inner surface of the storage rack (1); a turntable (8) is provided at one end of the worm (7) away from the storage rack (1).

3. A new type of wrench assembly according to claim 2, characterized in that: The inner wall of the storage rack (1) is rotatably connected to a rotating shaft (9), the outer surface of the rotating shaft (9) is fixedly sleeved with a worm wheel (10), and the outer surface of the worm wheel (10) is meshingly connected to the outer surface of the worm (7).

4. A new type of wrench assembly according to claim 1, characterized in that: The stable limiting mechanism comprises a ratchet (11) fixedly sleeved on an end of the rotating shaft (9) away from the storage rack (1); the outer surface of the storage rack (1) is fixedly connected to a first fixed shaft (12).

5. A new type of wrench assembly according to claim 4, characterized in that: A ratchet (13) is rotatably connected to the outer surface of the first fixed shaft (12), and a second fixed shaft (14) is fixedly connected to the outer surface of the storage rack (1).

6. A new type of wrench assembly according to claim 5, characterized in that: A spring pick (15) is provided on the outer surface of the second fixed shaft (14).

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