Hardware wrench with replaceable wrench head

Abstract

The utility model relates to the technical field of hardware tools, and discloses a hardware wrench with a replaceable wrench head, which comprises a head part and a handle part, the bottom of the head part is provided with a positioning pin hole I, and one side of the head part is provided with a notch I communicated with the positioning pin hole I; the handle part comprises a telescopic angle adjusting handle, a connecting handle is arranged at the top of the telescopic angle adjusting handle, a lower groove is formed in the top of the connecting handle, a first pin column matched with the first positioning pin hole is fixedly connected in the lower groove, the first pin column is in butt joint with a lock catch assembly, the lock catch assembly is used for locking the first pin column in the first positioning pin hole, and the lock catch assembly is installed in the first notch; sliding grooves are formed in the two sides of the telescopic angle adjusting handle. According to the combined type hardware wrench, the head part and the handle part are arranged to be in combined type connection, so that the head part can be detached, only different types of head parts need to be carried in the using process, the head parts and the handle part are assembled according to requirements, and therefore the problems that the weight is large and the storage space is occupied due to the fact that a large number of hardware wrenches are carried can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of hardware tools, and more specifically to a hardware spanner with a replaceable spanner head. Background Art

[0002] A wrench is a commonly used installation and disassembly tool. It is a tool that uses the principle of leverage to turn bolts, screws, and nuts to tighten or loosen them. A traditional hardware wrench consists of a head and a handle. The head is provided with a U-shaped groove of a fixed size. When in use, the bolts and nuts are embedded in the U-shaped groove, and the bolts and nuts are loosened or tightened by turning the handle.

[0003] Traditional hardware wrenches have defects when used: first, a single wrench can only be adapted to bolts and nuts of corresponding sizes, so hardware wrenches of different sizes are usually required when working, which are heavy to carry and take up storage space; second, when hardware wrenches are used in a small working space, the handle is often too long, which often causes certain inconveniences in operation. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a hardware wrench with a replaceable wrench head to solve the problem that the traditional hardware wrench in the above-mentioned background technology needs to be equipped with multiple ones due to size limitations, resulting in heavy weight when carried and occupying storage space, and the traditional hardware wrench is not easy to operate in a small space.

[0005] The utility model provides the following technical solution: a hardware wrench with a replaceable wrench head, comprising a head and a handle, wherein a positioning pin hole is provided at the bottom of the head, and a notch communicated with the positioning pin hole is provided at one side of the head;

[0006] The handle portion includes a telescopic angle adjustment handle, a connecting handle is provided on the top of the telescopic angle adjustment handle, a lower groove is provided on the top of the connecting handle, a pin column 1 adapted to a positioning pin hole 1 is fixedly connected in the lower groove, a locking component is docked with the pin column 1, the locking component is used to lock the pin column 1 in the positioning pin hole 1, the locking component is installed in the notch 1, slide grooves are provided on both sides of the telescopic angle adjustment handle, and two ear blocks are fixedly connected to the top of the telescopic angle adjustment handle, the inner sides of the two ear blocks are fixedly connected with ear columns, and the two ear columns are slidably sleeved in the two slide grooves respectively;

[0007] A second slot is provided on one side of the telescopic angle adjustment handle, and a telescopic screwdriver assembly is provided in the second slot.

[0008] Furthermore, a second pin is fixedly connected to the top of the telescopic angle adjustment handle, and a second positioning pin hole matched with the second pin is formed at the bottom of the connecting handle.

[0009] Furthermore, the second side walls of the pin are provided with rubber rings, and the second inner wall of the positioning pin hole is provided with an annular embedding groove matched with the rubber ring.

[0010] Furthermore, the locking assembly includes a fixing part 1, which is fixedly connected in a slot 1, a moving column is slidably sleeved in the inner cavity of the fixing part 1, one end of the moving column is fixedly connected to the moving part 1, one side of the moving part 1 is transmission-connected to the inner wall of the slot 2 through a spring, and the other side of the moving part 1 is fixedly connected to a locking pin, and a lock hole matching the locking pin is opened on one side wall of the pin column.

[0011] Furthermore, the telescopic angle adjustment handle includes an upper handle block, the bottom of the upper handle block is fixedly connected to an inner handle rod, the side wall of the inner handle rod is slidably sleeved with an outer handle sleeve, the bottom of the outer handle sleeve is provided with a rotary hole 1, a knob 1 component is movably sleeved in the rotary hole 1, the top of the knob 1 component is fixedly connected to a threaded rod, the inner handle rod is threadedly sleeved on the side wall of the threaded rod, the slot 2 is provided on one side of the upper handle block, and the telescopic screwdriver component is provided in the slot 2 of the upper handle block.

[0012] Furthermore, the telescopic screwdriver assembly includes a second fixing part, a screwdriver body is slidably sleeved in the inner cavity of the second fixing part, the second fixing part is fixedly connected in a second slot, a second moving part is fixedly connected to one end of the screwdriver body, the second moving part is slidably sleeved in the second slot, a threaded shaft is movably sleeved on one side of the second fixing part, the second moving part is threadedly sleeved on the side wall of the threaded shaft, a second knob is fixedly connected to the other end of the threaded shaft, a second screw hole is provided on the other side of the upper handle block, and the second knob is movably sleeved in the second screw hole.

[0013] Furthermore, the second side wall of the knob is provided with an annular groove, and the second inner wall of the rotary hole of the upper handle block is embedded in the annular groove.

[0014] Furthermore, the knob assembly includes a connecting column, the side wall of the connecting column is fixedly connected to an outer expansion ring, the bottom end of the outer expansion ring is located at the bottom of the outer handle sleeve and is fixedly connected to a handle, the inner wall of the outer handle sleeve rotation hole is provided with an annular expansion groove, and the outer expansion ring is movably sleeved in the annular expansion groove.

[0015] Technical effects and advantages of the utility model:

[0016] The utility model arranges the head and the handle in a modular connection so that the head can be disassembled. When in use, only different types of heads need to be carried and assembled with the handle according to needs, thereby avoiding the problem of heavy weight and storage space occupied by carrying a large number of hardware wrenches.

[0017] In addition, the shape of the handle can be changed. When used in a narrow space, the connecting handle and the telescopic angle adjustment handle can be changed to form a 90-degree angle. At this time, the shape of the handle is changed to an L shape, thereby avoiding the problem of inconvenience in using in a narrow space due to the length of the handle.

[0018] In addition, the handle of the wrench can be adjusted in length by the telescopic performance of the telescopic angle adjustment handle, so that the lever of the wrench is increased, and the labor-saving effect is achieved when it is used;

[0019] By providing the telescopic screwdriver assembly, the wrench can also be used to tighten or loosen the screws, thereby making the wrench more functional. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is an exploded schematic diagram of the overall structure of the utility model;

[0022] Figure 3 For this utility model Figure 2 A schematic diagram of the locking assembly structure;

[0023] Figure 4 For this utility model Figure 2 A schematic diagram of the structure of the telescopic angle adjustment handle;

[0024] Figure 5 For this utility model Figure 2 A schematic diagram of the structure of the telescopic screwdriver assembly;

[0025] Figure 6 For this utility model Figure 4 Schematic diagram of the enlarged structure at point A in the middle.

[0026] The accompanying drawings are marked as follows: 1. head; 2. handle; 21. connecting handle; 22. pin one; 23. locking assembly; 24. telescopic angle adjustment handle; 25. ear column; 26. pin two; 27. ear block; 28. telescopic screwdriver assembly; 231. fixing part one; 232. moving column; 233. moving part one; 234. locking pin; 235. spring; 241. upper handle block; 242. inner handle rod; 243. outer handle sleeve; 244. knob one assembly; 245. threaded rod; 281. fixing part two; 282. screwdriver body; 283. moving part two; 284. knob two; 285. threaded shaft; 2441. connecting column; 2442. outer expansion ring; 2443. handle. DETAILED DESCRIPTION

[0027] The specific implementation of the utility model is described in detail below with reference to the accompanying drawings.

[0028] Reference Figure 1 and Figure 2 The utility model provides a hardware wrench with a replaceable wrench head, comprising a head 1 and a handle 2. A positioning pin hole 1 is provided at the bottom of the head 1, and a notch 1 connected to the positioning pin hole 1 is provided on one side of the head 1;

[0029] The handle 2 includes a telescopic angle adjustment handle 24, a connecting handle 21 is provided on the top of the telescopic angle adjustment handle 24, a lower groove is provided on the top of the connecting handle 21, a pin column 22 adapted to the positioning pin hole 1 is fixedly connected in the lower groove, the pin column 22 is docked with a lock assembly 23, the lock assembly 23 is used to lock the pin column 22 in the positioning pin hole 1, the lock assembly 23 is installed in the slot 1, and slide grooves are provided on both sides of the telescopic angle adjustment handle 24. Two ear blocks 27 are fixedly connected to the top of the telescopic angle adjustment handle 24, and the inner sides of the two ear blocks 27 are fixedly connected to ear columns 25, and the two ear columns 25 are slidably sleeved in the two slide grooves respectively;

[0030] A second slot is provided on one side of the telescopic angle adjustment handle 24 , and a telescopic screwdriver assembly 28 is provided in the second slot.

[0031] Reference Figure 2 A pin column 26 is fixedly connected to the top of the telescopic angle adjustment handle 24, and a positioning pin hole 26 is provided at the bottom of the connecting handle 21, which is compatible with the pin column 26. In the initial state, the pin column 26 is inserted into the positioning pin hole 2. At this time, the connecting handle 21 and the telescopic angle adjustment handle 24 are limited to one hundred and eighty degrees, thereby improving the structural stability and avoiding the angle change between the connecting handle 21 and the telescopic angle adjustment handle 24 when the handle 2 does not need to be folded. When folding is required, the pin column 26 is disengaged from the positioning pin hole 2 by pulling down the telescopic angle adjustment handle 24. At this time, the ear column 25 slides down to the bottom in the slide grooves on both sides of the connecting handle 21, thereby removing the angle limit of the connecting handle 21 and the telescopic angle adjustment handle 24.

[0032] Reference Figure 2 A rubber ring is provided on the side wall of the pin 26, and an annular groove matched with the rubber ring is provided on the inner wall of the positioning pin hole 2. When the pin 26 is inserted into the positioning pin hole 2, the rubber ring is embedded in the annular groove, so that the pin 26 has a certain tightness in the positioning pin hole 2 to prevent it from falling off under the application of external force.

[0033] Reference Figure 3The lock assembly 23 includes a fixing member 231, which is fixedly connected in the slot 1, and a moving column 232 is slidably sleeved in the inner cavity of the fixing member 231. One end of the moving column 232 is fixedly connected to a moving member 233, and one side of the moving member 233 is transmission-connected to the inner wall of the slot 2 through a spring 235. The other side of the moving member 233 is fixedly connected to a locking pin 234. The side wall of the pin column 22 is provided with a locking hole adapted to the locking pin 234. When the head 1 is combined and operated When the locking pin 234 is displaced, the movable column 232 is first pressed to drive the movable member 233 to move, and the locking pin 234 is displaced. Then, the pin column 22 is inserted into the positioning pin hole 1, and the pressing effect on the movable column 232 is removed. Under the influence of the elastic force of the spring 235, the movable member 233 can drive the locking pin 234 to reset, and the locking pin 234 can be inserted into the locking hole on the side wall of the pin column 22. In this way, the locking component 23 can lock the pin column 22 in the positioning pin hole 1, so that the locking effect is achieved after the head 1 is assembled.

[0034] Reference Figure 4 The telescopic angle adjustment handle 24 includes an upper handle block 241, an inner handle rod 242 is fixedly connected to the bottom of the upper handle block 241, an outer handle sleeve 243 is slidably sleeved on the side wall of the inner handle rod 242, a rotary hole 1 is provided at the bottom of the outer handle sleeve 243, a knob 1 component 244 is movably sleeved in the rotary hole 1, a threaded rod 245 is fixedly connected to the top of the knob 1 component 244, the inner handle rod 242 is threadedly sleeved on the side wall of the threaded rod 245, a slot 2 is provided on one side of the upper handle block 241, and a telescopic screwdriver component 28 is provided in the slot 2 of the upper handle block 241. By rotating the knob 1 component 244, the threaded rod 245 is driven to rotate, so that the threaded rod 245 and the inner handle rod 242 are threadedly matched, thereby allowing the outer handle sleeve 243 to slide on the side wall of the inner handle rod 242, thereby achieving the telescopic effect of controlling the telescopic angle adjustment handle 24.

[0035] Reference Figure 5 The telescopic screwdriver assembly 28 includes a second fixing member 281, and a screwdriver body 282 is slidably sleeved in the inner cavity of the second fixing member 281. The second fixing member 281 is fixedly connected in the second slot. One end of the screwdriver body 282 is fixedly connected to a second moving member 283, and the second moving member 283 is slidably sleeved in the second slot. A threaded shaft 285 is movably sleeved on one side of the second fixing member 281, and the second moving member 283 is threadedly sleeved on the side wall of the threaded shaft 285. The other end of the threaded shaft 285 is fixedly connected to a second knob 284. A second rotating hole is provided on the other side of the upper handle block 241, and the second knob 284 is movably sleeved in the second rotating hole. By rotating the second knob 284, the threaded shaft 285 is driven to rotate, and the moving member 283 can be displaced under the effect of the threaded structure. The moving member 283 drives the screwdriver body 282 to move and slide in the inner cavity of the second fixing member 281, thereby allowing the screwdriver body 282 to extend out of the second slot to screw the screw.

[0036] Reference Figure 5 The side wall of the knob 284 is provided with an annular groove, and the inner wall of the second rotating hole of the upper handle block 241 is embedded in the annular groove. This structural setting can prevent the knob 284 from falling off.

[0037] Reference Figure 6 The knob component 244 includes a connecting column 2441, and the side wall of the connecting column 2441 is fixedly connected to an outer expansion ring 2442. The bottom end of the outer expansion ring 2442 is located at the bottom of the outer handle sleeve 243 and is fixedly connected to a handle 2443. The inner wall of the outer handle sleeve 243 rotating hole is provided with an annular expansion groove, and the outer expansion ring 2442 is movably sleeved in the annular expansion groove. By arranging the outer expansion ring 2442 to cooperate with the annular expansion groove on the inner wall of the rotating hole, the knob component 244 can be prevented from falling off from the rotating hole.

[0038] The working principle of the utility model is as follows: when in use, the bottom of the head 1 is embedded in the lower groove at the top of the connecting handle 21, and the pin 22 is inserted into the positioning pin hole 1 at the bottom end of the head 1, and the locking assembly 23 is connected with the pin 22. At this time, the combination between the head 1 and the handle 2 is completed, and the ear column 25 is rotated in the slide grooves on both sides of the connecting handle 21 by toggling the telescopic angle adjustment handle 24, so that the angle between the connecting handle 21 and the telescopic angle adjustment handle 24 can be adjusted, so that the handle 2 can be folded ninety degrees, so that the wrench can be used in a small space, and the telescopic angle adjustment handle 24 can be extended to extend the telescopic angle adjustment handle 24, so that the lever of the wrench can be increased to achieve a more labor-saving effect, and the telescopic screwdriver assembly 28 is operated to protrude from the second notch of the telescopic angle adjustment handle 24, so that the screw can be turned, making the wrench more functional.

[0039] The above shows and describes the basic principle, main features and advantages of the utility model. The utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A hardware wrench with a replaceable wrench head, comprising a head (1) and a handle (2), characterized in that: A positioning pin hole is provided at the bottom of the head (1), and a notch connected to the positioning pin hole is provided on one side of the head (1); The handle (2) comprises a telescopic angle adjustment handle (24), a connecting handle (21) is arranged on the top of the telescopic angle adjustment handle (24), a lower groove is arranged on the top of the connecting handle (21), a pin column (22) adapted to a positioning pin hole (22) is fixedly connected in the lower groove, a locking component (23) is docked with the pin column (22), the locking component (23) is used to lock the pin column (22) in the positioning pin hole (22), the locking component (23) is installed in the slot (23), sliding grooves are arranged on both sides of the telescopic angle adjustment handle (24), two ear blocks (27) are fixedly connected to the top of the telescopic angle adjustment handle (24), the inner sides of the two ear blocks (27) are fixedly connected with ear columns (25), and the two ear columns (25) are respectively slidably sleeved in the two sliding grooves; A second notch is provided on one side of the telescopic angle adjustment handle (24), and a telescopic screwdriver assembly (28) is provided in the second notch.

2. A hardware wrench with a replaceable wrench head according to claim 1, characterized in that: The top of the telescopic angle adjustment handle (24) is fixedly connected with a second pin column (26), and the bottom of the connecting handle (21) is provided with a second positioning pin hole matched with the second pin column (26).

3. A hardware wrench with a replaceable wrench head according to claim 2, characterized in that: The side wall of the second pin (26) is provided with a rubber ring, and the inner wall of the second positioning pin hole is provided with an annular embedding groove matched with the rubber ring.

4. The hardware wrench with a replaceable wrench head according to claim 1, characterized in that: The lock assembly (23) comprises a fixing member (231), the fixing member (231) is fixedly connected in the slot one, a moving column (232) is slidably sleeved in the inner cavity of the fixing member (231), one end of the moving column (232) is fixedly connected to a moving member (233), one side of the moving member (233) is transmission-connected to the inner wall of the slot two through a spring (235), the other side of the moving member (233) is fixedly connected to a locking pin (234), and a locking hole matched with the locking pin (234) is provided on the side wall of the pin column (22).

5. The hardware wrench with a replaceable wrench head according to claim 1, characterized in that: The telescopic angle adjustment handle (24) comprises an upper handle block (241), the bottom of the upper handle block (241) is fixedly connected to an inner handle rod (242), the side wall of the inner handle rod (242) is slidably sleeved with an outer handle sleeve (243), the bottom of the outer handle sleeve (243) is provided with a rotary hole 1, a knob 1 component (244) is movably sleeved in the rotary hole 1, the top of the knob 1 component (244) is fixedly connected to a threaded rod (245), the inner handle rod (242) is threadedly sleeved on the side wall of the threaded rod (245), the slot 2 is provided on one side of the upper handle block (241), and the telescopic screwdriver component (28) is provided in the slot 2 of the upper handle block (241).

6. A hardware wrench with a replaceable wrench head according to claim 5, characterized in that: The telescopic screwdriver assembly (28) comprises a second fixing member (281), the inner cavity of the second fixing member (281) is slidably sleeved with a screwdriver body (282), the second fixing member (281) is fixedly connected in a second slot, one end of the screwdriver body (282) is fixedly connected with a second moving member (283), the second moving member (283) is slidably sleeved in the second slot, one side of the second fixing member (281) is movably sleeved with a threaded shaft (285), the second moving member (283) is threadedly sleeved on the side wall of the threaded shaft (285), the other end of the threaded shaft (285) is fixedly connected with a second knob (284), and the other side of the upper handle block (241) is provided with a second screw hole, and the second knob (284) is movably sleeved in the second screw hole.

7. A hardware wrench with a replaceable wrench head according to claim 6, characterized in that: The side wall of the second knob (284) is provided with an annular groove, and the inner wall of the second rotary hole of the upper handle block (241) is embedded in the annular groove.

8. The hardware wrench with a replaceable wrench head according to claim 5, characterized in that: The knob assembly (244) includes a connecting column (2441), the side wall of the connecting column (2441) is fixedly connected to an outer expansion ring (2442), the bottom end of the outer expansion ring (2442) is located at the bottom of the outer handle sleeve (243) and is fixedly connected to a handle (2443), the inner wall of the rotating hole of the outer handle sleeve (243) is provided with an annular expansion groove, and the outer expansion ring (2442) is movably sleeved in the annular expansion groove.

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