Parallel open-end wrench with anti-skid function

Abstract

The utility model provides a parallel open-end wrench with an anti-skidding function, which belongs to the technical field of manual tool adjustable wrenches and comprises a fixed clamp body, a movable clamp body and a movable handle, the movable clamp body is arranged on the fixed clamp body and can slide along the fixed clamp body, and the movable handle is hinged with the fixed clamp body. When the movable handle rotates, the movable clamp body is further driven to slide along the fixed clamp body, the two clamp mouths clamp a workpiece between the two clamp mouths, at least one set of anti-skidding teeth are arranged on the opposite faces of the two clamp mouths, friction force between the anti-skidding teeth and the workpiece to be constructed is increased through the anti-skidding teeth, and the phenomena of skidding and the like are avoided.

Description

Technical Field

[0001] This utility model belongs to the technical field of manual tool adjustable wrenches, specifically relating to a parallel open-end wrench with anti-slip function. Background Technology

[0002] Reference application number 202410986134.9 describes a method for quickly adjusting the opening of a wrench-pump pliers. The wrench was originally designed to clamp pipes of different types. It was found that the tool can also be used to clamp and tighten nuts, bolts, etc. When using this wrench to tighten nuts and other workpieces, the friction between the wrench and the workpiece is small when encountering workpieces with relatively smooth surfaces, making it easy to slip and very inconvenient to operate. Utility Model Content

[0003] To address the problems existing in the prior art, a parallel open-end wrench with anti-slip function is provided.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] This utility model proposes a parallel open-end wrench with anti-slip function, comprising: a fixed clamp body, the fixed clamp body having a first clamp mouth and a ratchet groove; a movable clamp body, the movable clamp body being detachably mounted on the fixed clamp body and sliding along the fixed clamp body, the movable clamp body having a second clamp mouth and an annular groove; a movable handle, the movable handle having two connecting parts inserted into both sides of the fixed clamp body, the connecting parts having through holes, the movable handle having a torsion flange fixedly connected to it that can be inserted into the annular groove; and a pivot pin, the pivot pin having ratchet teeth that engage with and position itself at any position within the ratchet groove, the pivot pin being inserted into the through holes and the ratchet groove to hinge the fixed clamp body and the movable handle, and rotating the movable handle allowing the movable clamp body to slide linearly on the fixed clamp body; characterized in that: at least one set of anti-slip teeth is provided on the surfaces of the first and second clamp mouths facing each other.

[0006] Preferably, the anti-slip teeth have a circular and / or polygonal cross-sectional shape, the height of the anti-slip teeth is 0.5mm-2mm, the tooth spacing is controlled between 0.5-2mm, and the included angle between the top surface and the side surface of the anti-slip teeth is 97 degrees-102 degrees; when the cross-section of the anti-slip teeth is polygonal, the included angle between two adjacent sides is not less than 30 degrees and the cross-section of the anti-slip teeth is 0.25-16mm²; when the cross-section of the anti-slip teeth is circular, the diameter is 0.5-4mm.

[0007] Preferably, the fixed clamp body has grooves on both sides, and the movable clamp body has two sliders. When the movable handle is rotated, the two sliders slide along the grooves respectively.

[0008] Preferably, the pivot pin is detachable. After the pivot pin is pulled out, the twisted protrusion disengages from the annular groove, allowing the movable clamp body and movable handle to be detached from the fixed clamp body.

[0009] Preferably, a button is detachably mounted on the pivot pin.

[0010] Preferably, a spring plate is installed on one side of the movable handle, and the other end of the spring plate overlaps with the end of the pivot pin.

[0011] Preferably, the spring sheet is detachably fixed to the movable handle by screws.

[0012] Preferably, the fixed clamp body has a fixed gripping part and a hinge part, the hinge part is fixed at one end in an inclined shape, and the first clamp jaw and ratchet groove are both provided on the hinge part.

[0013] Preferably, the movable handle has a movable grip portion and two connecting portions, the two connecting portions being spaced apart, and the hinge portion being insertable between the two connecting portions.

[0014] Preferably, the gripping parts of the fixed clamp body and the movable handle are each provided with a grip sleeve.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The present invention has at least one set of anti-slip teeth on the surfaces of the first and second jaws facing each other. The anti-slip teeth increase the friction between the jaws and the workpiece to be worked, thereby preventing slippage.

[0017] 2. In this utility model, when the movable handle is turned, the movable clamp body can be further moved along the fixed clamp body, thereby realizing the clamping between the two jaws. When the movable clamp body moves, the slider below it slides along the groove in the fixed clamp body, which can realize more stable movement and clamping of the movable clamp body. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 2 This is a top view of the present invention.

[0021] Figure 3 This is a bottom view of the utility model.

[0022] Figure 4 This is a top view of the fixing clamp body of this utility model.

[0023] Figure 5 This is a top view of the movable clamp body of this utility model.

[0024] Figure 6 This is a top view of the movable handle of this utility model.

[0025] Figure 7 This is the front view of the movable handle of this utility model.

[0026] Figure 8 This is a three-dimensional structural diagram of the transfer pin of this utility model.

[0027] Figure 9 This utility model presents a structural schematic diagram of the cross-tooth shape of the anti-slip teeth.

[0028] Figure 10 This utility model presents a schematic diagram of the structure of the anti-slip tooth truncated pyramid.

[0029] Figure 11 This utility model presents a schematic diagram of the anti-slip cylindrical tooth structure.

[0030] Explanation of reference numerals in the attached figures:

[0031] a. Fixed jaw body; a1. Fixed gripping part; a2. Hinge part; a3. First jaw; a4. Ratchet groove; a5. Countersunk groove;

[0032] b. Movable clamp body; b1. Second clamp jaw; b2. Annular groove; b3. Slider;

[0033] c. Movable handle; c1. Movable grip; c2. Connecting part; c3. Perforation; c4. Torsional flange;

[0034] d. Anti-slip teeth;

[0035] e, pivot pin; e1, ratchet; f, button; g, spring plate. Detailed Implementation

[0036] In the description of this utility model, it should be understood that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component that is centrally positioned therein. When a component is considered to be "set" on another component, it can be directly set on the other component or there may be a component that is centrally positioned therein.

[0037] Furthermore, terms such as “long,” “short,” “inner,” and “outer” indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings. They are used only for the purpose of describing the present invention and do not indicate or imply that the components or elements referred to must have this specific orientation or operate in a specific orientation. Therefore, they should not be construed as limitations of the present invention.

[0038] The present invention will now be described in detail with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are included within the protection scope of the present invention.

[0039] like Figure 1-9 As shown, this embodiment proposes a parallel open-end wrench with anti-slip function, which includes a fixed clamp body a, the fixed clamp body a having a first clamp mouth a3, and a ratchet groove a4 on the fixed clamp body a; a movable clamp body b, which is detachably mounted on the fixed clamp body a and can slide along the fixed clamp body a, the movable clamp body b having a second clamp mouth b, and an annular groove b2 on the movable clamp body b; and a movable handle c, which has two connecting parts c2 inserted into both sides of the fixed clamp body a. The connecting part c2 has a through hole c3, and the movable handle c has a torsion flange c4 fixedly connected to it, which can be inserted into the annular groove b2; the pivot pin e has a ratchet e1 that can be positioned in any position with the ratchet groove a4, and the pivot pin e can be inserted into the through hole c3 and the ratchet groove a4 to hinge the fixed clamp body a and the movable handle c. When the movable handle c is rotated, the movable clamp body b can slide linearly on the fixed clamp body a; at least one set of anti-slip teeth d is provided on the opposite surfaces of the first clamp jaw a3 and the second clamp jaw b.

[0040] The wrench in this application is used as follows: the pivot pin e is manually controlled to slide along its own axis, so that the ratchet e1 on the pivot pin e engages or disengages with the ratchet e1 groove, thereby enabling the movable clamp body b to quickly adjust the range of movement on the fixed clamp body a according to the diameter of the workpiece such as the nut, increasing the ease of use of the product.

[0041] In this embodiment, anti-slip teeth d are provided on the surfaces of the first jaw a3 and the second jaw b that are opposite each other. The anti-slip teeth d increase the friction between the jaws and the workpiece to be worked, thus preventing slippage.

[0042] The anti-slip teeth d have a circular and / or polygonal cross-sectional shape, preferably a regular polygon. When the cross-section is circular, the anti-slip teeth can be frustum or cylindrical in shape; when the cross-section is polygonal, the anti-slip teeth can be triangular or quadrangular in shape. To achieve optimal anti-slip performance, the height of the anti-slip teeth d is 0.5mm-2mm, preferably 0.5mm-1mm; the tooth spacing of the anti-slip teeth d is controlled between 0.5mm and 2mm, preferably 0.5mm-1mm; the angle between the top and side surfaces of the anti-slip teeth d is 97 degrees-102 degrees; when the cross-section of the anti-slip teeth d is polygonal, the angle between two adjacent sides is not less than 30 degrees and the cross-section of the anti-slip teeth d is 0.25-16mm², preferably 0.25-4mm²; when the cross-section of the anti-slip teeth d is circular, the diameter is 0.5-4mm, preferably 0.5-2mm. When the anti-slip teeth d meet the above parameters, they can reduce damage to the outer surface of the nut and increase the friction force on the nut.

[0043] In some embodiments, the fixed clamp body a has countersunk grooves a5 on both sides, and the movable clamp body b has two sliders b3. When the movable handle c is rotated, the two sliders b3 slide along the countersunk grooves a5 respectively. This design can further drive the movable clamp body b to move along the fixed clamp body a when the movable handle c is turned, thereby realizing the clamping between the two jaws. When the movable clamp body b moves, the sliders b3 below it slide along the countersunk grooves a5 in the fixed clamp body a, which can realize more stable movement and clamping of the movable clamp body b.

[0044] refer to Figure 1 In some embodiments, the pivot pin e is detachable. After the pivot pin e is pulled out, the twisted protrusion c4 disengages from the annular groove b2, allowing the movable clamp body b and the movable handle c to be detached from the fixed clamp body a for replacement and maintenance. The movable clamp body b has a compact structure, and after long-term use and wear, it can be quickly disassembled and replaced, thereby improving the economic efficiency of the product.

[0045] In some embodiments, a button f is detachably mounted on the pivot pin e. The button f can limit the position of the pivot pin e within the ratchet groove a4, and can also quickly disengage the two from the engagement state, adjusting the range of movement of the movable clamp b on the fixed clamp a.

[0046] Furthermore, to facilitate the quick reset of the pivot pin e on the movable handle c, a spring plate g is fixedly installed on one side of the movable handle c, so that the other end of the spring plate g overlaps with the end of the pivot pin e. Utilizing the elastic deformation characteristics of the spring plate g, the pivot pin e always tends to retract on the movable handle c, maintaining a stable engagement between the ratchet e1 and the ratchet e1 groove, thus increasing the stability of the product during use. The spring plate g is detachably fixed to the movable handle c using screws.

[0047] In some embodiments, the fixed clamp body a has a fixed gripping part a1 and a hinge part a2. The hinge part a2 is fixed at one end of the fixed gripping part a1 in an inclined shape. The first jaw a3 and the ratchet groove a4 are both provided on the hinge part a2. The movable handle c has a movable gripping part c and two connecting parts c2. The two connecting parts c2 are spaced apart. The hinge part a2 can be inserted between the two connecting parts c2. Then, the pivot pin e is inserted between the two to form a hinge between them. Rotating the movable gripping part c1 can drive the movable clamp body b to slide linearly on the fixed clamp body a, thereby realizing the clamping of the internal workpiece by the two jaws. The gripping parts of the fixed clamp body a and the movable handle c are respectively provided with grip sleeves, which can improve comfort and safety and extend the service life of the wrench.

[0048] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A parallel open-end wrench with anti-slip function, comprising: The fixed clamp body (a) has a first clamping jaw (a3) ​​at its mouth and a ratchet through groove (a4) on its surface. The movable clamp body (b) is detachably mounted on the fixed clamp body (a) and can slide along the fixed clamp body (a). The movable clamp body (b) is provided with a second clamp mouth (b1) and an annular groove (b2) is also provided on the movable clamp body (b). The movable handle (c) has two connecting parts (c2) inserted on both sides of the fixed clamp body (a), and the connecting parts (c2) are provided with through holes (c3). The movable handle (c) is fixedly connected with a torsion flange (c4) that can be inserted into the annular groove (b2). A pivot pin (e) has ratchet teeth (e1) that can engage with any position in the ratchet groove (a4). The pivot pin (e) can be inserted into the through hole (c3) and the ratchet groove (a4) to hinge the fixed clamp body (a) and the movable handle (c). Rotating the movable handle (c) allows the movable clamp body (b) to slide linearly on the fixed clamp body (a). The feature is that at least one set of anti-slip teeth (d) is provided on the surfaces of the first jaw (a3) ​​and the second jaw (b1) facing each other.

2. A parallel open-end wrench with anti-slip function according to claim 1, characterized in that: The anti-slip tooth (d) has a circular and / or polygonal cross-sectional shape. The height of the anti-slip tooth (d) is 0.5mm-2mm, the tooth spacing is 0.5-2mm, and the included angle between the top surface and the side surface of the anti-slip tooth (d) is 97 degrees-102 degrees. When the cross-section of the anti-slip tooth (d) is polygonal, the included angle between two adjacent sides is not less than 30 degrees and the cross-section of the anti-slip tooth (d) is 0.25-16mm². When the cross-section of the anti-slip tooth (d) is circular, the diameter is 0.5-4mm.

3. A parallel open-end wrench with anti-slip function according to claim 1, characterized in that: The fixed clamp (a) has grooves (5) on both sides, and the movable clamp (b) has two sliders (b3). When the movable handle (c) is rotated, the two sliders (b3) slide along the grooves (5) respectively.

4. A parallel open-end wrench with anti-slip function according to claim 1, characterized in that: The pivot pin (e) is detachable. After the pivot pin (e) is pulled out, the twisted protrusion (c4) is disengaged from the annular groove (b2), so that the movable clamp body (b) and the movable handle (c) can be detached from the fixed clamp body (a).

5. A parallel open-end wrench with anti-slip function according to claim 1, characterized in that: A button (f) is detachably mounted on the pivot pin (e).

6. A parallel open-end wrench with anti-slip function according to claim 5, characterized in that: A spring plate (g) is installed on one side of the movable handle (c), so that the other end of the spring plate (g) overlaps with the end of the pivot pin (e).

7. A parallel open-end wrench with anti-slip function according to claim 6, characterized in that: The spring sheet (g) is detachably and securely mounted on the movable handle (c) by screws.

8. A parallel open-end wrench with anti-slip function according to claim 1, characterized in that: The fixed clamp body (a) has a fixed gripping part (a1) and a hinge part (a2). The hinge part (a2) is fixed at an angle to a section of the hinge part (a2). The first clamp jaw (a3) ​​and the ratchet groove (a4) are both provided on the hinge part (a2).

9. A parallel open-end wrench with anti-slip function according to claim 8, characterized in that: The movable handle (c) has a movable gripping part (c1) and two connecting parts (c2), the two connecting parts (c2) are spaced apart, and the hinge part (a2) can be inserted between the two connecting parts (c2).

10. A parallel open-end wrench with anti-slip function according to claim 1, characterized in that: The gripping parts of the fixed clamp (a) and the movable handle (c) are respectively provided with grip sleeves.

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