Split type multipurpose tap wrench

Abstract

The utility model provides a split type multipurpose tap wrench, and belongs to the technical field of tap wrenches. The screw tap wrench solves the problems that an existing screw tap wrench cannot adjust the size of a screw tap opening, the same size specification only corresponds to a screw tap of a fixed size specification, and limitation exists in the using process. The split type multipurpose tap wrench comprises a wrench frame body, adjusting blocks and a wrench handle, and the wrench handle penetrates through the two sides of the short edge of the wrench frame body and is fixedly connected with the adjusting blocks which are installed in a containing space in a central symmetry mode through threads. The adjusting blocks can move left and right along the sliding guide rails on the two sides of the long edge of the center of the wrench frame body by rotating the wrench handle, so that the relative position between the clamping faces of the two adjusting blocks is adjusted, and clamping spaces with different intervals are formed. The screw tap clamping device can clamp screw taps of different specifications and sizes in an adjustable mode, and has the advantages of being convenient to use, flexible, multipurpose and high in practicability.

Description

Technical Field

[0001] The utility model belongs to the technical field of tap wrenches, in particular to a split multi-purpose tap wrench. Background Art

[0002] A tap wrench is a tool used to clamp a hand tap during tapping. Conventional tap wrenches typically only fit taps of fixed sizes, which limits their use.

[0003] The multi-purpose tap wrench disclosed in patent application number CN201710374298.6 includes a first, long, fixed horizontal bar and a second, long, fixed horizontal bar. The second fixed horizontal bar is detachably connected to the first fixed horizontal bar. During use, the user holds the handles separately and then uses the sliding protrusions and sliding slots to slide the first and second fixed horizontal bars relative to each other, thereby changing the size of the tap opening formed by the first and second wrench slots. However, the patent does not actually adjust the size of the tap opening after the first and second fixed horizontal bars slide relative to each other, and the method of tightening with screws is cumbersome and inconvenient to operate. Utility Model Content

[0004] The purpose of the utility model is to provide a split multi-purpose tap wrench to solve the above problems in the prior art.

[0005] The purpose of the utility model can be achieved by the following technical solutions: a split multi-purpose tap wrench, comprising a wrench frame, an adjustment block and a wrench handle; the wrench frame is generally rectangular, with sliding guide rails formed on the inner side walls of the two long sides of the central accommodating space, and mounting holes are respectively opened on the inner side walls of the two short sides in a centrally symmetrical manner;

[0006] There are two adjusting blocks, which are symmetrically distributed and installed in the accommodating space in the center of the wrench frame. The adjusting block is composed of a clamping block and a limit block formed in one piece. The adjusting block is provided with a sliding groove corresponding to the sliding guide rail on one side close to the inner side wall of the long side of the wrench frame, and a right-angle groove is formed on the other side by the inclined surfaces of the clamping block and the limit block being perpendicular to each other. The right-angle grooves on the adjusting blocks on both sides surround each other to form a clamping space for clamping the tap. The clamping block is provided with a connecting hole corresponding to the mounting hole on one side close to the inner side wall of the short side of the wrench frame; the wrench handle passes through the mounting hole and is screwed into the connecting hole to be fixedly connected to the adjusting block.

[0007] In the above-mentioned split multi-purpose tap wrench, the upper and lower end surfaces of the center of the wrench frame form limited position edges on both sides of the sliding guide rail.

[0008] In the above-mentioned split multi-purpose tap wrench, the right-angle groove on the side of the clamping block slope is the clamping surface, and the side of the limiting block slope is the limiting surface. The clamping surface and the limiting surface are continuous surfaces and are both provided with rough friction textures.

[0009] In the above-mentioned split multi-purpose tap wrench, a locking internal thread is provided in the mounting hole, a connecting internal thread is provided in the connecting hole, and the wrench handle is provided with one section of external thread and two sections of external thread from the beginning to the end, wherein one section of external thread cooperates with the connecting internal thread, and the second section of external thread cooperates with the locking internal thread.

[0010] In the above-mentioned split multi-purpose tap wrench, a tapered head is formed at the front end of a section of the external thread of the wrench handle.

[0011] Compared with the prior art, the utility model provides a split multi-purpose tap wrench which forms clamping spaces of different spacings by adjusting the relative positions of the two adjustment blocks inside the wrench frame, thereby realizing adjustable clamping of taps of different specifications and sizes. It is easy to use, flexible and versatile, and highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural diagram of the split multi-purpose tap wrench;

[0013] Figure 2 This is an exploded view of the structure of the split multi-purpose tap wrench;

[0014] Figure 3 It is a schematic diagram of the state of the split multi-purpose tap wrench.

[0015] In the above figure, 100, wrench frame; 110, sliding guide rail; 120, limiting edge; 130, mounting hole; 131, locking internal thread; 140, clamping space; 200, adjusting block; 210, clamping block; 220, limiting block; 230, right-angle groove; 231, clamping surface; 232, limiting surface; 240, connecting hole; 241, connecting internal thread; 250, sliding groove; 300, wrench handle; 310, one-stage external thread; 320, two-stage external thread; 330, tapered head. DETAILED DESCRIPTION

[0016] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0017] like Figures 1 to 3As shown, the split multi-purpose tap wrench includes a wrench frame 100, an adjustment block 200 and a wrench handle 300. The wrench frame 100 is a rectangular frame as a whole, with a rectangular accommodating space at the center. There are two adjustment blocks 200, which are centrally symmetrically distributed and installed in the accommodating space at the center of the wrench frame 100. The wrench handle 300 is fixedly connected to the adjustment block 200 and installed on both sides of the wrench frame 100.

[0018] like Figure 2 As shown, sliding guide rails 110 are formed on the inner side walls of the long sides of the central accommodating space of the wrench frame 100, and limiting edges 120 are formed on the upper and lower end surfaces of the center of the wrench frame 100 on both sides of the sliding guide rails 110. The limiting edges 120 are used to limit the left and right sliding of the adjustment block 200 without derailing; mounting holes 130 are respectively opened on the inner side walls of the short sides of the central accommodating space of the wrench frame 100 in a centrally symmetrical manner, and locking internal threads 131 are opened in the mounting holes 130.

[0019] The adjustment block 200 is formed integrally of a clamping block 210 and a limiting block 220. The end faces of the clamping block 210 and the limiting block 220 are similar right-angled triangles. The inclined surfaces on the hypotenuse of the clamping block 210 and the limiting block 220 are perpendicular to each other, forming right-angled grooves 230. The right-angled grooves 230 on the two adjustment blocks 200 are also centrally symmetrically distributed, surrounding each other to form a clamping space 140 for clamping the tap. The right-angled groove 230 on the inclined surface of the clamping block 210 is a clamping surface 231, which is the main force-applying surface for clamping the square tenon at the end of the tap. The right-angled groove 230 on the inclined surface of the limiting block 220 is a limiting surface 232, which is mainly used to limit the width of the clamping space 140 on both sides to prevent the tap from disengaging from the clamping surface 231. The clamping surface 231 and the limiting surface 232 are continuous surfaces and are both provided with rough friction textures, which are used to enhance the friction between the clamping surface 231 and the limiting surface 232 and the tap during clamping, thereby preventing the tap from slipping.

[0020] The adjustment block 200 has a sliding groove 250 on one side near the inner sidewall of the long side of the wrench frame 100. The sliding groove 250 corresponds to the sliding guide rail 110, allowing the adjustment blocks 200 on both sides to move and adjust their relative positions within the accommodating space at the center of the wrench frame 100, forming clamping spaces 140 of different spacings, thereby achieving adjustable clamping of taps of different specifications and sizes. The clamping block 210 has a connecting hole 240 on one side near the inner sidewall of the short side of the wrench frame 100, corresponding to the mounting hole 130, and a connecting internal thread 241 is provided in the connecting hole 240.

[0021] The wrench handle 300 is provided with a first external thread 310 and a second external thread 320 from the beginning to the end. During installation, it passes through the mounting hole 130 in the wrench frame 100 and is screwed into the connecting hole 240 to be fixedly connected to the adjustment block 200. The first external thread 310 mates with the connecting internal thread 241, and the second external thread 320 mates with the locking internal thread 131. The front end of the first external thread 310 is formed with a tapered head 330, which facilitates guidance and positioning when the wrench handle 300 is fixedly connected to the adjustment block 200.

[0022] like Figure 3 As shown, the working principle of the present invention is as follows: the wrench handle 300 passes through the two sides of the short side of the wrench frame 100 and is fixedly connected to the adjustment block 200 installed symmetrically in the center of the accommodating space through a threaded connection. By rotating the wrench handle 300, the adjustment block 200 can be displaced left and right along the sliding guide rails 110 on both sides of the central long side of the wrench frame 100, thereby adjusting the relative position between the clamping surfaces 231 of the two adjustment blocks 200 to form clamping spaces 140 with different spacings. The spacing of the clamping spaces 140 limits the size specifications of the tap, thereby realizing adjustable clamping of taps of different sizes, making the tap wrench convenient, flexible and practical in actual use.

[0023] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

[0024] Although various terms are used in this document, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A split multi-purpose tap wrench, comprising a wrench frame (100), an adjustment block (200) and a wrench handle (300); characterized in that: The wrench frame (100) is in the shape of a rectangular frame as a whole, and a sliding guide rail (110) is formed on the inner side walls of the two long sides of the central accommodating space, and mounting holes (130) are respectively opened on the inner side walls of the two short sides in a centrally symmetrical manner; The number of the regulating blocks (200) is two, and they are centrally symmetrically distributed and mounted in the accommodation space at the center of the wrench frame (100). The regulating blocks (200) are formed as a whole by a clamping block (210) and a limiting block (220). The regulating blocks (200) are provided with a sliding groove (250) corresponding to the sliding guide rail (110) on one side of the inner side wall of the long side of the wrench frame (100), and a clamping block (210) and a limiting block (220) on the other side. The inclined surfaces are perpendicular to each other and are provided with right-angle grooves (230). The right-angle grooves (230) on the adjusting blocks (200) on both sides surround each other to form a clamping space (140) for clamping a tap. The clamping block (210) is provided with a connecting hole (240) corresponding to the mounting hole (130) on one side of the inner side wall of the short side of the wrench frame (100). The wrench handle (300) passes through the mounting hole (130) and is screwed into the connecting hole (240) to be fixedly connected to the adjusting block (200).

2. A split multi-purpose tap wrench according to claim 1, characterized in that: The upper and lower end surfaces of the center of the wrench frame (100) form limited edges (120) on both sides of the sliding guide rail (110).

3. A split multi-purpose tap wrench according to claim 1, characterized in that: The right-angle groove (230) has a clamping surface (231) on the side of the inclined surface of the clamping block (210), and a limiting surface (232) on the side of the inclined surface of the limiting block (220). The clamping surface (231) and the limiting surface (232) are continuous surfaces and are both provided with rough friction textures.

4. The split multi-purpose tap wrench according to claim 1, characterized in that: A locking internal thread (131) is provided in the mounting hole (130), a connecting internal thread (241) is provided in the connecting hole (240), and the wrench handle (300) is provided with one section of external thread (310) and two sections of external thread (320) in sequence from the beginning to the end, wherein the one section of external thread (310) cooperates with the connecting internal thread (241), and the two sections of external thread (320) cooperate with the locking internal thread (131).

5. A split multi-purpose tap wrench according to claim 4, characterized in that: The wrench handle (300) is formed with a tapered head (330) at the front end of a section of external thread (310).

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