A bolt anti-slip tightening wrench device

Abstract

This utility model discloses a bolt anti-slip tightening wrench device, relating to the field of wrench technology. It includes a wrench body comprising a handle, a wrench head, a fixed wrench lip, and a movable wrench lip. The wrench head is fixedly connected to the handle, and the fixed wrench lip is fixedly connected to the wrench head. A wrench adjustment mechanism is provided between the movable wrench lip and the wrench head, and an anti-slip reinforcement mechanism is provided inside the fixed wrench lip. Through the wrench adjustment mechanism, pushing the push block downwards causes the limit rod to move downwards and retract into the mounting cavity. Without the limit rod, pushing the movable wrench lip causes the connecting column to move within the cylindrical groove, allowing adjustment of the wrench spacing according to the bolt size. After adjustment, releasing the push block causes the limit rod to move upwards and reset under the action of a spring, inserting the limit rod into the slot of the connecting column, thus limiting and fixing the movable wrench lip. This simple adjustment avoids the difficulty in adjustment caused by jamming in traditional worm gear wrenches.

Description

Technical Field

[0001] This utility model relates to the field of wrench technology, and in particular to a bolt anti-slip tightening wrench device. Background Technology

[0002] An adjustable wrench, also known as a set-top wrench, is a tool used to tighten and loosen nuts and bolts of different sizes, with its opening width adjustable within a certain range. An adjustable wrench consists of a head and a handle. The head comprises a sliding lip, a closed lip, a jaw, a worm gear, and a pivot pin. Rotating the worm gear adjusts the size of the jaw opening.

[0003] Currently, existing adjustable wrenches adjust the wrench size by rotating a turbine. However, with long-term use, the turbine of the wrench is prone to jamming due to dust and rust, resulting in difficulty and uneven wrench adjustment.

[0004] Therefore, this application proposes a bolt anti-slip tightening wrench device. Utility Model Content

[0005] This utility model discloses a bolt anti-slip tightening wrench device, which aims to solve the technical problem that the wrench head of the existing wrench is easily blocked by dust and rusted, making it inconvenient to adjust.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A bolt anti-slip tightening wrench device includes a wrench body, which includes a handle, a wrench head, a fixed wrench lip, and a movable wrench lip. The wrench head is fixedly connected to the handle, the fixed wrench lip is fixedly connected to the wrench head, and a wrench head adjustment mechanism is provided between the movable wrench lip and the wrench head. An anti-slip reinforcement mechanism is provided inside the fixed wrench lip.

[0008] The wrench adjustment mechanism includes a cylindrical slide groove extending through both sides of the wrench head. A connecting column is slidably connected inside the cylindrical slide groove. The upper surface of the connecting column is fixedly connected to the lower surface of the movable wrench lip. An installation cavity extending into the handle housing is opened on the inner bottom wall of the cylindrical slide groove. A spring is fixedly connected to the inner bottom wall of the installation cavity. A limit rod is fixedly connected to the upper end of the spring. A number of equally spaced slots are opened on the lower surface of the connecting column. A sliding strip opening extending into the installation cavity is opened on the left side surface of the handle. A push block fixedly connected to the surface of the limit rod is slidably connected inside the sliding strip opening.

[0009] In a preferred embodiment, the spacing between the plurality of said slots is adapted to the diameter of commonly used bolts.

[0010] In a preferred embodiment, the front of the wrench head is provided with a scale bar.

[0011] The scale bar facilitates the adjustment of the wrench spacing.

[0012] In a preferred embodiment, the anti-slip reinforcement mechanism includes a reinforcement groove on the left side of the fixed plate lip, an operating rod extending through the reinforcement groove on the right side of the fixed plate lip, a threaded rod fixedly connected to the left end of the operating rod extending into the reinforcement groove, a threaded cylinder threadedly connected to the surface of the threaded rod, and a stop plate fixedly connected to the left end of the threaded cylinder.

[0013] The use of a threaded cylinder and abutment plate enhances the stability of the contact between the wrench and the bolt, preventing slippage.

[0014] In a preferred embodiment, both the upper and lower surfaces of the threaded cylinder are provided with guide sliders, and the inner top and bottom walls of the reinforcing groove are provided with guide grooves for the guide sliders to slide.

[0015] By setting a guide slider, the threaded cylinder can drive the abutment to move left and right in a directional manner through the rotation of the threaded rod.

[0016] In a preferred embodiment, the left side surface of the abutment is provided with an anti-slip pad.

[0017] The anti-slip pads can increase the friction between the backing plate and the bolts.

[0018] In a preferred embodiment, the right end of the operating lever is provided with a Torx groove, and the Torx groove is compatible with an external Torx screwdriver.

[0019] The design of the plum blossom groove facilitates the rotation of the operating lever.

[0020] In a preferred embodiment, the surface of the grip is covered with a non-slip protective sleeve.

[0021] The anti-slip sleeve improves the comfort of staff when holding the handle.

[0022] As can be seen from the above, the bolt anti-slip tightening wrench device provided by this utility model has the following technical effects.

[0023] Firstly, when adjusting the wrench's jaw spacing, push the push block downwards to move the limit rod back into the mounting cavity. Without the limit rod's restriction, push the moving wrench lip to move the connecting column within the cylindrical groove. This allows you to adjust the jaw spacing according to the bolt size. After adjustment, release the push block. Under the spring's action, push the limit rod upwards to reset, allowing it to insert into the connecting column's slot, thus limiting and fixing the moving wrench lip. This simple adjustment avoids the difficulty of adjustment that can occur with traditional turbines due to jamming.

[0024] Secondly, rotating the operating lever drives the threaded rod to rotate. Under the guidance of the guide slider, the threaded cylinder drives the abutment plate to press against the surface of the bolt through the rotation of the threaded rod. This can strengthen the firmness of the contact between the wrench and the bolt, making it easier to disassemble some bolts that are abnormally tight due to rust, avoiding slippage, and further improving the practicality of the wrench. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of a bolt anti-slip tightening wrench device proposed in this utility model.

[0026] Figure 2 This is a front sectional view of a bolt anti-slip tightening wrench device proposed in this utility model.

[0027] Figure 3 This utility model proposes a bolt anti-slip tightening wrench device. Figure 2 Enlarged structural diagram at point A in the middle.

[0028] Figure 4 This is a three-dimensional structural diagram of the connecting column of a bolt anti-slip tightening wrench device proposed in this utility model.

[0029] In the attached image:

[0030] 1. Wrench body; 101. Handle; 102. Wrench head; 103. Fixed wrench lip; 104. Moving wrench lip;

[0031] 2. Connecting column; 3. Spring; 4. Limiting rod; 5. Slot; 6. Push block; 7. Scale bar; 8. Operating rod; 9. Threaded rod; 10. Threaded cylinder; 11. Support plate; 12. Guide slider; 13. Anti-slip sleeve. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0033] Reference Figures 1-4 A bolt anti-slip tightening wrench device includes a wrench body 1. The wrench body 1 includes a handle 101, a wrench head 102, a fixed wrench lip 103, and a movable wrench lip 104. The wrench head 102 is fixedly connected to the handle 101, the fixed wrench lip 103 is fixedly connected to the wrench head 102, a wrench adjustment mechanism is provided between the movable wrench lip 104 and the wrench head 102, and an anti-slip reinforcement mechanism is provided inside the fixed wrench lip 103.

[0034] The wrench adjustment mechanism includes a cylindrical slide groove extending through both sides of the wrench head 102. A connecting post 2 is slidably connected inside the cylindrical slide groove. The upper surface of the connecting post 2 is fixedly connected to the lower surface of the movable wrench lip 104. An installation cavity extending into the housing of the handle 101 is opened on the inner bottom wall of the cylindrical slide groove. A spring 3 is fixedly connected to the inner bottom wall of the installation cavity. A limit rod 4 is fixedly connected to the upper end of the spring 3. A number of slots 5 arranged in an equidistant array are opened on the lower surface of the connecting post 2. A sliding strip opening extending into the installation cavity is opened on the left side surface of the handle 101. A push block 6 fixedly connected to the surface of the limit rod 4 is slidably connected inside the sliding strip opening.

[0035] The spacing between several slots 5 is adapted to the existing common bolt diameter, so that the wrench can be adapted to some commonly used bolt models.

[0036] The front of the wrench head 102 is provided with a scale bar 7, which facilitates the adjustment of the wrench head spacing.

[0037] The surface of the handle 101 is covered with an anti-slip sleeve 13, which can improve the comfort of the staff when holding the handle 101.

[0038] Reference Figure 2 and Figure 3 In a preferred embodiment, the anti-slip reinforcement mechanism includes a reinforcement groove on the left side of the fixed lip 103, and an operating rod 8 extending through the reinforcement groove on the right side of the fixed lip 103. A threaded rod 9 is fixedly connected to the left end of the operating rod 8 extending into the reinforcement groove. A threaded cylinder 10 is threadedly connected to the surface of the threaded rod 9. A stop plate 11 is fixedly connected to the left end of the threaded cylinder 10. By setting the threaded cylinder 10 and the stop plate 11, the stability of the contact between the wrench and the bolt can be reinforced, and slippage can be avoided.

[0039] Guide sliders 12 are provided on both the upper and lower surfaces of the threaded cylinder 10. Guide grooves for sliding of the guide sliders 12 are provided on both the inner top and inner bottom walls of the reinforcing groove. Under the guidance of the guide sliders 12, the threaded cylinder 10 can drive the abutment plate 11 to move left and right through the rotation of the threaded rod 9.

[0040] An anti-slip pad is provided on the left side surface of the abutment plate 11. The anti-slip pad can increase the friction when the abutment plate 11 contacts the bolt.

[0041] The right end of the operating lever 8 is provided with a Torx groove, which is compatible with an external Torx screwdriver. The Torx groove facilitates the rotation of the operating lever 8.

[0042] Working principle: When the wrench's jaw spacing needs to be adjusted, push the push block 6 downwards to move the limit rod 4 downwards and retract it into the mounting cavity. Without the limit rod 4, push the moving wrench lip 104 to move the connecting column 2 within the cylindrical groove. The jaw spacing can then be adjusted according to the size of the bolt. After adjustment, release the push block 6. Under the action of the spring 3, push the limit rod 4 upwards to reset, allowing the limit rod 4 to insert into the slot 5 of the connecting column 2, thus limiting and fixing the moving wrench lip 104. At this point, the bolt can be installed and removed using the wrench. Simultaneously, rotating the operating lever 8 rotates the threaded rod 9. Under the guidance of the guide slider 12, the threaded cylinder 10, through the rotation of the threaded rod 9, causes the abutment plate 11 to abut against the surface of the bolt. This strengthens the contact between the wrench jaws and the bolt, facilitating the disassembly of bolts that are abnormally tight due to rust, and preventing slippage.

[0043] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A bolt anti-slip tightening wrench device, characterized in that, The wrench body (1) includes a handle (101), a wrench head (102), a fixed wrench lip (103) and a movable wrench lip (104). The wrench head (102) is fixedly connected to the handle (101), the fixed wrench lip (103) is fixedly connected to the wrench head (102), and a wrench adjustment mechanism is provided between the movable wrench lip (104) and the wrench head (102). An anti-slip reinforcement mechanism is provided inside the fixed wrench lip (103). The wrench adjustment mechanism includes a cylindrical slide groove that runs through both sides of the wrench head (102). A connecting column (2) is slidably connected inside the cylindrical slide groove. The upper surface of the connecting column (2) is fixedly connected to the lower surface of the movable wrench lip (104). An installation cavity extending into the handle (101) housing is opened on the inner bottom wall of the cylindrical slide groove. A spring (3) is fixedly connected to the inner bottom wall of the installation cavity. A limit rod (4) is fixedly connected to the upper end of the spring (3). A number of slots (5) arranged in an equidistant array are opened on the lower surface of the connecting column (2). A sliding strip opening that runs through the installation cavity is opened on the left side surface of the handle (101). A push block (6) fixedly connected to the surface of the limit rod (4) is slidably connected inside the sliding strip opening.

2. The bolt anti-slip tightening wrench device according to claim 1, characterized in that, The spacing between several of the slots (5) is adapted to the diameter of commonly used bolts.

3. The bolt anti-slip tightening wrench device according to claim 1, characterized in that, The front of the wrench (102) is provided with a scale bar (7).

4. The bolt anti-slip tightening wrench device according to claim 1, characterized in that, The anti-slip reinforcement mechanism includes a reinforcement groove on the left side of the fixed plate lip (103), and an operating rod (8) extending through the reinforcement groove on the right side of the fixed plate lip (103). A threaded rod (9) is fixedly connected to the left end of the operating rod (8) extending into the reinforcement groove. A threaded cylinder (10) is threadedly connected to the surface of the threaded rod (9), and a stop plate (11) is fixedly connected to the left end of the threaded cylinder (10).

5. The bolt anti-slip tightening wrench device according to claim 4, characterized in that, The upper and lower surfaces of the threaded cylinder (10) are provided with guide sliders (12), and the inner top and bottom walls of the reinforcing groove are provided with guide grooves for the guide sliders (12) to slide.

6. The bolt anti-slip tightening wrench device according to claim 4, characterized in that, The left side surface of the abutment (11) is provided with an anti-slip pad.

7. The bolt anti-slip tightening wrench device according to claim 4, characterized in that, The right end of the operating lever (8) is provided with a Torx groove, and the Torx groove is compatible with an external Torx screwdriver.

8. The bolt anti-slip tightening wrench device according to claim 1, characterized in that, The surface of the handle (101) is covered with an anti-slip sleeve (13).

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