Tap wrench

Abstract

A tap wrench relates to the technical field of wrench tools and comprises a tap reamer frame, handles at two ends of the tap reamer frame, a fixed claw block, a movable claw block and an adjusting screw, the fixed claw block, the movable claw block and the adjusting screw are arranged in the tap reamer frame, an adjusting screw hole is arranged on one end face, opposite to the fixed claw block, in the tap reamer frame, and a screw portion of the adjusting screw is arranged in the adjusting screw hole. The head of the adjusting screw abuts against the tail of the movable claw block. According to the tap wrench, the connecting structure that a handle drives a movable claw block in an existing tap wrench is changed, the tap wrench is not connected with the handle, the function that the handles at the two ends of the wrench can be disassembled at the same time is achieved, the tap wrench can be used in a narrow space, in addition, the handles of the tap are of a pluggable connecting structure, rapid disassembly and assembly are achieved, and efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wrench tools, in particular to a tap wrench. Background Art

[0002] Benchwork is the oldest metal processing technology in mechanical manufacturing, and tapping is a basic operating skill in benchwork. Taps are used to process small-sized internal threads, and dies are used to process small-sized external threads. The auxiliary tool used to clamp the tap for internal thread processing is the tap wrench, and the auxiliary tool used to clamp the die for external bolt processing is the die wrench.

[0003] At present, a conventional tap wrench includes a fixed block, a movable block and two handles, wherein the movable block is connected to one of the handles, and the movable block is adjusted by the handle to achieve the clamping function. The problems with this structure are: 1. Only one handle can be removed during work, which cannot be used in a narrow space. In addition, since one handle cannot be removed, the product packaging volume is large, which increases packaging costs; 2. The adjustment handle and movable block of the wrench are complex to process, and the product assembly is cumbersome; 3. The clamping range of the wrench is limited, and the movable slider cannot be quickly replaced to adjust the clamping range; 4. The wrench does not have a level calibrator to assist in aligning the workpiece level, which can easily cause the thread to tilt or even the tap to break.

[0004] In addition, the handles of existing tap and die wrenches are basically connected by threads, which makes disassembly and assembly inconvenient, time-consuming and labor-intensive. Utility Model Content

[0005] The purpose of the utility model is to solve the deficiencies of the above-mentioned prior art and provide a tap wrench. The existing tap wrench changes the connection structure in which the handle drives the movable claw block, which is not connected to the handle, so that the handles at both ends of the wrench can be removed at the same time, and it can be used in a small space. In addition, the handles of the tap and die wrench adopt a plug-in connection structure, which can achieve quick disassembly and assembly, thereby improving efficiency.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the present utility model is as follows:

[0007] A tap wrench includes a tap tumbler frame, handles at both ends of the frame, a fixed jaw block within the frame, a movable jaw block, and an adjustment screw. An adjustment screw hole is provided on the end surface of the tap tumbler frame opposite the fixed jaw block. The screw shaft of the adjustment screw is disposed within the adjustment screw hole, with the head of the adjustment screw abutting against the tail of the movable jaw block. Turning the adjustment screw changes the length of the screw shaft extending out of the adjustment screw hole, thereby adjusting the clamping range of the adjustment screw and achieving its clamping function.

[0008] Preferably, the handle is a detachable structure, and handle holes are provided at both ends of the tap reamer handle frame. The handle holes are internal thread structures, and corresponding threads are provided at the ends of the handle.

[0009] Preferably, the adjusting screw hole and the handle hole at one end thereof are connected structures of the same size and are formed in one step, thereby simplifying the processing steps.

[0010] Preferably, the handle is a detachable structure, with handle holes provided at both ends of the tap reamer frame. The inner walls of the handle holes are smooth and contain at least two ball screw holes I connected to the handle holes, each containing a ball screw. The handle ends are provided with corresponding steel ball ring grooves. The ball screw is a derivative of the set screw, consisting of a spring, a steel ball, and a housing. After the handle is installed, the steel ball is forced by the spring to fall into the steel ball ring groove, securing the handle. For disassembly, the handle can be pulled outward. Furthermore, tightening the ball screw inward will firmly support the handle, preventing it from slipping out during use if force is applied.

[0011] Preferably, the tap tumbler frame and the fixed claw block are integrally formed, which reduces the number of parts and simplifies the processing and assembly process.

[0012] Preferably, the surface of the tap reamer frame is provided with a level installation hole, in which a level is installed. The surface of the tap reamer frame has enough space to install the level to assist in leveling.

[0013] Preferably, a limit post is provided in the middle of the head of the adjusting screw, and a limit post hole is provided at the tail of the movable claw block, wherein the diameter of the limit post is smaller than the diameter of the limit post hole. The movable claw block is sleeved on the limit post to prevent the movable claw block from falling off, and when the adjusting screw is rotated, the limit post rotates freely within the limit post hole synchronously.

[0014] Preferably, the movable claw block is provided with a fixing screw hole connected to the limiting post hole, or the movable claw block is provided with two fixing screw holes symmetrically distributed on the surface thereof and connected to the limiting post hole, wherein fixing screws are disposed in the fixing screw holes. Tightening the fixing screws secures the movable claw block to the adjusting screw, preventing the adjusting screw from rotating. When adjustment is required, the fixing screws can be tightened.

[0015] Preferably, the side wall of the limiting column is provided with a ring groove, and after tightening the fixing screw, the end thereof falls into the ring groove, thereby limiting the axial movement of the movable claw block.

[0016] Preferably, the head of the adjusting screw is provided with anti-slip grooves.

[0017] A die wrench comprises a die wrench frame and handles at both ends of the frame. The handles are detachable and have handle holes at both ends. The handle holes have smooth inner walls and are provided with at least two ball screw holes II communicating with the handle holes. Ball screws are installed within these holes, and corresponding steel ball ring grooves are provided at the end of the handle. The ball screw is a derivative of the set screw and consists of a spring, a steel ball, and a housing. After the handle is installed, the steel ball is forced by the spring to fall into the steel ball ring groove, securing the handle. To remove, the handle can be pulled outward.

[0018] The advantages of the utility model are: 1. It changes the connection structure of the existing tap wrench in which the handle drives the movable claw block, which is not connected to the handle, so that the handles at both ends of the wrench can be removed at the same time, can be used in a small space, and at the same time reduces the product packaging volume and reduces the packaging cost.

[0019] 2. The tap wrench is easy to process, especially the handle and movable block are simple and quick to process and assemble.

[0020] 3. The tap wrench can quickly replace movable jaws of different sizes to achieve the clamping function of taps of different specifications.

[0021] 4. The tap wrench is equipped with a level calibrator to help level the workpiece, avoiding thread tilt or even tap breakage.

[0022] 5. The handles of the tap and die wrenches adopt a plug-in connection structure, which enables quick disassembly and assembly, improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a three-dimensional diagram of the tap wrench of the utility model;

[0024] Figure 2 This is the front view of the tap wrench of the utility model;

[0025] Figure 3 This is a cross-sectional view of the tap wrench of the utility model;

[0026] Figure 4 This is a three-dimensional diagram of the tap hinge frame in the utility model;

[0027] Figure 5 This is a cross-sectional view of the tap hinge frame in the utility model;

[0028] Figure 6 It is a three-dimensional diagram of the movable claw block in the utility model;

[0029] Figure 7 It is a three-dimensional diagram of the adjusting screw in the present utility model;

[0030] Figure 8 It is a three-dimensional diagram of the handle in the present utility model;

[0031] Figure 9 This is a three-dimensional diagram of the die wrench of the utility model;

[0032] Figure 10 It is a partial cross-sectional view of the die wrench of the utility model.

[0033] Explanation of the main component symbols in the figure: 10, tap reamer frame; 11, adjustment screw hole; 12, handle hole; 13, ball screw hole I; 14, level installation hole;

[0034] 20. Handle; 21. Steel ball ring groove;

[0035] 30. Fixed claw block;

[0036] 40. Movable claw block; 41. Limit column hole; 42. Fixing screw hole;

[0037] 50. Adjusting screw; 51. Limiting column; 52. Ring groove; 53. Anti-slip groove;

[0038] 60. Ball-end screws;

[0039] 70. Die cutter hand frame; 71. Ball-end screw hole II. DETAILED DESCRIPTION

[0040] In order to more clearly illustrate the present invention, the present invention will be further described below with reference to the accompanying drawings.

[0041] Example 1: Figure 1-3 As shown, a tap wrench includes a tap tumbler frame 10 , handles 20 at both ends of the tap tumbler frame 10 , a fixed claw block 30 , a movable claw block 40 and an adjusting screw 50 in the tap tumbler frame 10 .

[0042] Combine Figure 4-7 As shown, an adjusting screw hole 11 is provided on one end surface of the tap tumbler frame 10 opposite to the fixed claw block 30 , and the screw portion of the adjusting screw 50 is disposed in the adjusting screw hole 11 , and the head of the adjusting screw 50 abuts against the tail of the movable claw block 40 .

[0043] The tap tumbler handle frame 10 and the fixed claw block 30 are integrally formed, and the head of the adjusting screw 50 is provided with anti-slip grooves 53 .

[0044] Embodiment 2: Based on embodiment 1, the handle 20 is a detachable structure, and handle holes 12 are provided at both ends of the tap tumbler frame 10. The handle holes 12 are internal thread structures, and corresponding threads are provided at the end of the handle 20, and the adjusting screw hole 11 and the handle hole 12 at one end thereof are connected structures of the same size.

[0045] Example 3: Figure 1-5 and Figure 8 As shown, based on the first embodiment, the handle 20 is a detachable structure, and handle holes 12 are provided at both ends of the tap tumbler frame 10. The inner wall of the handle hole 12 is smooth, and at least two ball screw holes Ⅰ 13 connected to the handle hole 12 are provided, in which ball screws 60 are provided, and corresponding steel ball ring grooves 21 are provided at the ends of the handle 20.

[0046] Example 4: Figure 4-5 As shown, based on the first embodiment, a level installation hole 14 is provided on the surface of the tap reamer handle frame 10, and a level is provided inside the hole.

[0047] Example 5: Figure 3 and Figure 6-7 As shown, based on Example 1, Example 2, Example 3 or Example 4, a limiting column 51 is set in the middle of the head of the adjusting screw 50, and a limiting column hole 41 is set at the tail of the movable claw block 40, and the diameter of the limiting column 51 is smaller than the diameter of the limiting column hole 41.

[0048] Example 6: Figure 6 As shown, on the basis of Example 5, the surface of the movable claw block 40 is provided with a fixing screw hole 42 connected to the limiting column hole 41, or the surface of the movable claw block 40 is provided with two fixing screw holes 42 connected to the limiting column hole 41 and symmetrically distributed, and fixing screws are provided in the fixing screw holes 42.

[0049] Combine Figure 7 As shown, a ring groove 52 is provided on the side wall of the limiting column 51 .

[0050] Example 7: Figure 8-10 As shown, a die wrench includes a die auger frame 70 and handles 20 at both ends of the die auger frame 70. The handles 20 are detachable structures. Handle holes are provided at both ends of the die auger frame 70. The inner walls of the handle holes are smooth and are provided with at least two ball screw holes II 71 connected to the handle holes, in which ball screws 60 are provided. Corresponding steel ball ring grooves 21 are provided at the ends of the handle 20.

[0051] The above description is only a specific embodiment of the present invention, but the structural features of the present invention are not limited thereto. The present invention can be used on similar products. Any changes or modifications made by any technician in this field within the scope of the present invention are covered by the patent scope of the present invention.

Claims

1. A tap wrench, characterized in that: It comprises a tap hinge frame (10), handles (20) at both ends of the tap hinge frame (10), a fixed claw block (30) in the tap hinge frame (10), a movable claw block (40) and an adjusting screw (50); An adjusting screw hole (11) is provided on an end surface of the tap reamer frame (10) opposite to the fixed claw block (30), a screw portion of the adjusting screw (50) is arranged in the adjusting screw hole (11), and a head portion of the adjusting screw (50) abuts against a tail portion of the movable claw block (40).

2. The tap wrench according to claim 1, characterized in that: The handle (20) is a detachable structure. Both ends of the tap reamer frame (10) are provided with handle holes (12). The handle holes (12) are internal thread structures. The end of the handle (20) is provided with corresponding threads. The adjusting screw hole (11) and the handle hole (12) at one end thereof are connected structures with the same size.

3. The tap wrench according to claim 1, characterized in that: The handle (20) is a detachable structure. The tap reamer frame (10) is provided with handle holes (12) at both ends. The inner wall of the handle hole (12) is smooth and provided with at least two ball screw holes I (13) communicating with the handle hole (12). The ball screws (60) are provided therein. The end of the handle (20) is provided with a corresponding steel ball ring groove (21).

4. The tap wrench according to claim 1, characterized in that: The tap reamer handle frame (10) and the fixed claw block (30) are integrally formed.

5. The tap wrench according to claim 4, characterized in that: The surface of the tap reamer frame (10) is provided with a level installation hole (14), in which a level is provided.

6. The tap wrench according to claim 1, characterized in that: A limiting column (51) is provided in the middle of the head of the adjusting screw (50), and a limiting column hole (41) is provided at the tail of the movable claw block (40). The diameter of the limiting column (51) is smaller than the diameter of the limiting column hole (41).

7. The tap wrench according to claim 6, characterized in that: The surface of the movable claw block (40) is provided with a fixing screw hole (42) communicating with the limiting column hole (41), or the surface of the movable claw block (40) is provided with two fixing screw holes (42) communicating with the limiting column hole (41) and symmetrically distributed, and fixing screws are provided in the fixing screw holes (42).

8. The tap wrench according to claim 7, characterized in that: The side wall of the limiting column (51) is provided with a ring groove (52).

9. A tap wrench according to any one of claims 1 to 8, characterized in that: The head of the adjusting screw (50) is provided with anti-slip grooves (53).

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