Reciprocating type resettable monkey wrench

Abstract

The utility model discloses a reciprocating type resettable monkey wrench, and particularly relates to the field of monkey wrenches, the reciprocating type resettable monkey wrench comprises a handle, one end of the handle is provided with a fixed jaw, one end of the handle close to the fixed jaw is fixedly connected with a connecting plate, one side of the fixed jaw is provided with a connecting groove matched with the connecting plate, and a cylindrical pin is inserted in the middle of the connecting plate. According to the utility model, firstly, the movable adjusting mechanism is arranged to conveniently adjust whether the connection of the handle and the fixed jaw has a rotating gap, when the handle and the fixed jaw do not have an adjusting gap, the handle and the fixed jaw are fixedly connected to conveniently realize the normal work of a conventional wrench, and when the handle and the fixed jaw have an adjusting gap, the handle and the fixed jaw are fixedly connected to conveniently realize the normal work. According to the adjustable spanner, reciprocating movement is convenient, reciprocating type resettable cycle work of the adjustable spanner is achieved, reciprocating cycle work at any angle in a narrow space can be achieved, angle adjustment does not need to be conducted, a large amount of time is saved, and the experience feeling of customers is improved.

Description

Technical Field

[0001] This utility model relates to the field of adjustable wrench technology, and more specifically, to a reciprocating resettable adjustable wrench. Background Technology

[0002] In today's industrial and daily life scenarios, adjustable wrenches are undoubtedly crucial hand tools. With their ability to flexibly adjust the jaw size, they have been widely used in various fields such as auto repair shops, factory assembly lines, and home renovation sites, providing convenience for tightening and loosening numerous nuts and bolts. However, with technological iterations and increasingly complex practical scenarios, the shortcomings of traditional adjustable wrenches have become more and more prominent, causing many problems for users.

[0003] When turning a nut with a traditional adjustable wrench, after turning it to a certain angle, the wrench is constrained by its own structure and the surrounding space, and has to disengage from the nut. The angle must be readjusted before force can be applied to turn it again. This intermittent operation is barely acceptable in open spaces, but once in a narrow space, such as inside a car engine compartment or in the corner of a factory with dense pipes, the angle needs to be constantly adjusted, wasting a lot of time and energy, causing time-consuming and inconvenient work for the user. Therefore, a reciprocating adjustable wrench with reset function is proposed. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a reciprocating resettable movable wrench to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a reciprocating resettable movable wrench, including a handle, a fixed jaw at one end of the handle, a connecting plate fixedly connected to the end of the handle near the fixed jaw, a connecting groove adapted to the connecting plate on one side of the fixed jaw, the fixed jaw and the handle being connected through the connecting plate and the connecting groove, a cylindrical pin inserted in the middle of the connecting plate, and pin holes corresponding to the cylindrical pin symmetrically opened on both sides of the connecting groove, the handle and the fixed jaw being connected through the cooperation of the cylindrical pin and the first spring groove, and a rotatable gap can be created in the connection between the handle and the fixed jaw as needed;

[0006] The connecting groove has a movable adjustment mechanism in the middle to adjust the relationship between the fixed jaw and the handle. A sliding groove is provided on one side of the fixed jaw, and a receiving hole is provided in the middle of the fixed jaw. A pin groove is provided in the middle of the receiving hole. A movable jaw is provided on one side of the fixed jaw, and a rotating mechanism for driving the movable jaw to move is provided in the middle of the receiving hole. The movable adjustment mechanism allows for a rotatable gap when the handle and fixed jaw are connected by a cylindrical pin, facilitating reciprocating movement and enabling the adjustable wrench to operate in a reciprocating, resettable cycle. This allows for reciprocating operation at any angle in confined spaces without needing to adjust the angle back and forth, saving significant time and improving the customer experience. The rotating mechanism also allows for regular control of the movable jaw's movement, making it convenient to use and easy to coordinate with the movable adjustment mechanism to achieve reciprocating, resettable cyclic operation.

[0007] In a preferred embodiment, the connecting plate is located in the middle of the connecting groove, the two ends of the cylindrical pin extend into the interior of the pin hole, and the end of the handle away from the fixed jaw is provided with a box wrench slot. The cooperation between the cylindrical pin and the pin hole facilitates the connection between the handle and the fixed jaw. The box wrench slot increases the adaptability of the product and can better meet the needs of different customers.

[0008] In a preferred embodiment, a guide rod is fixedly connected to one side of the movable jaw, and the inner cavity of the slide groove is connected to one side of the inner cavity of the receiving hole. The guide rod is located in the middle of the slide groove, and a toothed groove is provided on the side of the guide rod near the receiving hole. The guide rod is limited by the slide groove, so that the movable jaw can be moved by controlling the movement of the guide rod, which facilitates the adjustment of the opening and closing size in conjunction with the fixed jaw.

[0009] In a preferred embodiment, the rotating mechanism includes a fine stud pin inserted in the middle of the pin groove, a coarse stud pin fixedly connected to one end of the fine stud pin, the coarse stud pin being located on the side of the fine stud pin near the movable jaw, an annular groove being formed at one end of the coarse stud pin, and a stop groove being formed in the middle of the fine stud pin.

[0010] In a preferred embodiment, a stud is fitted in the middle of the fine stud pin, and an open retaining ring is provided in the middle of the retaining groove. The open retaining ring is located on the side of the stud away from the coarse stud pin. A first compression spring is fitted in the middle of the coarse stud pin. Both the first compression spring and the stud are located in the middle of the receiving hole. One side of the teeth of the stud meshes with the tooth groove on one side of the guide rod. Through the cooperation of the open retaining ring and the coarse stud pin, the stud can be limited in the middle of the fine stud pin. When the coarse and fine stud pins are fixed, the guide rod can be moved horizontally inside the slide groove by rotating the stud, thereby realizing the normal use of a conventional adjustable wrench. When the positions of the coarse and fine stud pins are not fixed, the guide rod is driven to move by squeezing the movable jaw. At this time, the first compression spring is squeezed, which can realize automatic opening and closing. At this time, the target bolt cannot be rotated. When the movable jaw is not squeezed, the push of the stud by the first compression spring can make one end of the stud always generate a force away from the movable jaw.

[0011] In a preferred embodiment, the movable adjustment mechanism includes a first guide groove formed in the middle of the connecting groove, the first guide groove corresponding to the annular groove, a locking hole formed on the side of the connecting plate near the first guide groove, a second spring groove formed on the side of the connecting plate away from the locking hole, a first spring groove formed in the inner cavity of the connecting groove at a position corresponding to the second spring groove, a limit groove formed at the top of the fixed jaw, and a cam groove formed in the middle of the connecting plate, the cross-sectional shape of the cam groove and the limit groove being set as a fan-shaped structure.

[0012] In a preferred embodiment, a return spring is provided in the middle of the first spring groove, and the two ends of the return spring are fixedly connected to the walls of the inner cavities of the first spring groove and the second spring groove, respectively. A locking post is provided in the middle of the locking hole, and a stop pin is fixedly connected to one side of the locking post. One end of the stop pin extends into the interior of the first guide groove and fits against the inner wall of the annular groove.

[0013] In a preferred embodiment, a pin is inserted in the middle of the limiting groove, a second guide groove is formed in the middle of the limiting groove, positioning holes are symmetrically formed at both ends of the middle of the second guide groove, the cross-sectional shape of the second guide groove is set as an arc structure, and one end of the pin extends into the interior of the cam groove and is fitted with a cam disc.

[0014] In a preferred embodiment, a pin head is fixedly connected to the top of the pin, a knob is provided on the top of the pin head, a screw is inserted into the top of the knob, one end of the screw extends into the interior of the pin head and is threadedly connected to the pin head, and the knob is parallel to the cam disc.

[0015] In a preferred embodiment, a placement groove is provided at the bottom of the knob corresponding to the positioning hole. A second compression spring and a top ball are provided in the middle of the placement groove. The two ends of the second compression spring are fixedly connected to the inner wall of the placement groove and the top wall of the top ball, respectively. One end of the top ball extends into the interior of the positioning hole. When the cam plate is in a horizontal state inside the cam groove, one end of the stop pin extends into the interior of the annular groove and fits against the wall of the annular groove. At this time, the position of the connecting plate is fixed by the cylindrical pin, and the position of the cam plate is fixed to the cam groove, so that the connecting plate and the fixed jaw can be fixed relative to each other, realizing the normal operation of the conventional wrench.

[0016] When the cam disk is in a vertical position inside the cam groove, a play is created between the cam disk and the cam groove. The connection plate is fixed by the cylindrical pin, which creates a rotational gap between the connection plate and the fixed jaw.

[0017] When the connecting plate rotates upward around the cylindrical pin, it compresses the return spring and simultaneously drives the locking pin through the locking hole to move the stop pin inside the first guide groove, thereby moving one end of the stop pin from inside the stud, thus unlocking the stud coarse pin position.

[0018] When the connecting plate rotates downward around the cylindrical pin, the return spring resets and drives one end of the stop pin to insert into the annular groove to lock the position of the stud pin. When the fixed jaw rotates, it can rotate the target bolt by cooperating with the movable jaw.

[0019] Secondly, the pin is fixedly connected to the knob by screws, and the knob position can be fixed by the top ball sliding inside the second guide groove and the top ball being inserted into the positioning hole. When the knob has a large rotation resistance, the top ball can squeeze the second compression spring to make the knob rotate without affecting the adjustment of the knob's orientation.

[0020] The technical effects and advantages of this utility model are as follows:

[0021] 1. This utility model firstly uses an adjustable mechanism to facilitate the adjustment of whether the connection between the handle and the fixed jaw has a rotational clearance. When there is no adjustment clearance between the handle and the fixed jaw, the handle and the fixed jaw are fixedly connected, which facilitates the normal operation of a conventional wrench. When there is an adjustment clearance between the handle and the fixed jaw, it facilitates reciprocating movement, thereby realizing the reciprocating and resettable cyclic operation of the adjustable wrench. It can reciprocate and cycle at any angle in a confined space without having to adjust the angle back and forth, saving a lot of time and improving the customer experience.

[0022] 2. This utility model also uses the first compression spring to push the connecting plate, which can make one end of the stop pin generate a force to insert into the ring groove when the handle is not under force. Through the cooperation of the second guide groove and positioning hole with the second compression spring and the top ball, the position of the knob can be easily fixed after the knob is rotated to a fixed angle. Moreover, pushing the knob will not affect the adjustment of the knob position, thus improving the use effect.

[0023] 3. This utility model also increases the adaptability of the product by setting a wrench slot, which can better meet the needs of different customers. The stud is fixed by the opening retaining ring being inserted into the inside of the retaining groove, which facilitates the assembly of this component. The first compression spring pushes the stud, so that when the movable jaw is not pushed, the stud drives the movable jaw to generate a force close to the jaw opening position on the side of the fixed jaw, which makes it easy to make the ring groove correspond to the first guide groove and facilitates locking.

[0024] In summary, through the interaction of the above-mentioned multiple functions, the reciprocating and resettable cyclical operation of the adjustable wrench can be achieved, allowing for normal adjustment between the two. The reciprocating and resettable structure enables cyclical operation at any angle within a confined space without the need for repeated angle adjustments, saving significant time and enhancing the customer experience. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0026] Figure 2 This is a schematic diagram of the cross-sectional structure of the fixed jaw of this utility model.

[0027] Figure 3 This is a schematic diagram of the disassembled structure of the fixed jaw of this utility model.

[0028] Figure 4 This is a schematic diagram of the disassembled structure of this utility model.

[0029] Figure 5 This is a schematic diagram of the present invention from another angle.

[0030] Figure 6 This is a schematic diagram showing the disassembled structure of the stud pin and the stud of this utility model.

[0031] Figure 7 This is a schematic diagram of the fixed jaw structure of this utility model.

[0032] Figure 8 This is a schematic diagram showing the disassembled structure of the knob and cam disc of this utility model.

[0033] The attached figures are labeled as follows: 1. Handle; 2. Fixed jaw; 3. Connecting plate; 4. Connecting groove; 5. Cylindrical pin; 6. First spring groove; 7. Return spring; 8. Locking hole; 9. Stop pin; 10. Locking post; 11. First guide groove; 12. Second spring groove; 13. Slide groove; 14. Accommodating hole; 15. Pin groove; 16. Guide rod; 17. Movable jaw; 18. Fine stud pin; 19. Coarse stud pin; 20. Ring groove; 21. Stop groove; 22. Stud; 23. First compression spring; 24. Open retaining ring; 25. Box wrench slot hole; 26. Pin hole; 27. Limiting groove; 28. Second guide groove; 29. ​​Positioning hole; 30. Cam groove; 31. Pin; 32. Cam plate; 33. Pin head; 34. Knob; 35. Screw; 36. Placement groove; 37. Second compression spring; 38. Top ball. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] As attached Figure 1-8 The reciprocating resettable movable wrench shown includes a handle 1, a fixed jaw 2 at one end of the handle 1, a connecting plate 3 fixedly connected to the end of the handle 1 near the fixed jaw 2, a connecting groove 4 adapted to the connecting plate 3 on one side of the fixed jaw 2, the fixed jaw 2 and the handle 1 are connected by the connecting plate 3 and the connecting groove 4, a cylindrical pin 5 is inserted in the middle of the connecting plate 3, and pin holes 26 corresponding to the cylindrical pin 5 are symmetrically opened on both sides of the connecting groove 4, the handle 1 and the fixed jaw 2 are connected by the cooperation of the cylindrical pin 5 and the first spring groove 6, and the connection between the handle 1 and the fixed jaw 2 can be rotatably gapped as needed;

[0036] A movable adjustment mechanism is provided in the middle of the connecting groove 4 to adjust the relationship between the fixed jaw 2 and the handle 1. A sliding groove 13 is provided on one side of the fixed jaw 2, and a receiving hole 14 is provided in the middle of the fixed jaw 2. A pin groove 15 is provided in the middle of the receiving hole 14. A movable jaw 17 is provided on one side of the fixed jaw 2, and a rotating mechanism for driving the movable jaw 17 to move is provided in the middle of the receiving hole 14. Through the movable adjustment mechanism, a rotatable gap is easily created when the handle 1 and the fixed jaw 2 are connected by the cylindrical pin 5, which facilitates reciprocating movement and realizes the reciprocating and resettable cyclic operation of the adjustable wrench. It can reciprocate and cycle at any angle in a confined space without having to adjust the angle back and forth, saving a lot of time and improving the customer experience. Through the rotating mechanism, the movement of the movable jaw 17 can be controlled in a conventional manner, which is convenient to use and easy to cooperate with the movable adjustment mechanism to realize the reciprocating and resettable cyclic operation.

[0037] As attached Figure 1 , 2 As shown in Figures 3, 4, 5, and 7, the connecting plate 3 is located in the middle of the connecting groove 4. The two ends of the cylindrical pin 5 extend into the interior of the pin hole 26. The end of the handle 1 away from the fixed jaw 2 is provided with a wrench-shaped slot 25. A guide rod 16 is fixedly connected to one side of the movable jaw 17. The inner cavity of the slide groove 13 is connected to one side of the inner cavity of the receiving hole 14. The guide rod 16 is located in the middle of the slide groove 13. A toothed groove is provided on the side of the guide rod 16 near the receiving hole 14. Through the cooperation of the cylindrical pin 5 and the pin hole 26, it is convenient to connect the handle 1 and the fixed jaw 2. The wrench-shaped slot 25 is provided to increase the adaptability of this product and better meet the needs of different customers. The guide rod 16 is limited by the slide groove 13, so that the movable jaw 17 can be moved by controlling the movement of the guide rod 16, which is convenient to cooperate with the fixed jaw 2 to realize the adjustment of the opening and closing size.

[0038] As attached Figure 1-7As shown, the rotating mechanism includes a fine stud pin 18 inserted in the middle of the pin groove 15. One end of the fine stud pin 18 is fixedly connected to a coarse stud pin 19, which is located on the side of the fine stud pin 18 near the movable jaw 17. One end of the coarse stud pin 19 has an annular groove 20. A retaining groove 21 is provided in the middle of the fine stud pin 18. A stud 22 is sleeved in the middle of the fine stud pin 18. An open retaining ring 24 is provided in the middle of the retaining groove 21, which is located on the side of the stud 22 away from the coarse stud pin 19. A first compression spring 23 is sleeved in the middle of the coarse stud pin 19. Both the first compression spring 23 and the stud 22 are located in the middle of the receiving hole 14. One side of the teeth of the stud 22 meshes with the tooth groove on one side of the guide rod 16. The open retaining ring 24 passes through the open retaining ring. The engagement of ring 24 and stud pin 19 allows stud 22 to be positioned in the middle of stud pin 18. When stud pin 19 and stud pin 18 are fixed, rotating stud 22 controls the guide rod 16 to move horizontally within the slide groove 13, thus enabling the normal use of a conventional adjustable wrench. When the positions of stud pin 19 and stud pin 18 are not fixed, pressing the movable jaw 17 causes the guide rod 16 to move the stud 22, which in turn compresses the first compression spring 23, enabling automatic opening and closing. At this time, rotation control of the target bolt is not possible. When the movable jaw 17 is not compressed, the push of the first compression spring 23 on the stud 22 ensures that one end of the stud 22 always generates a force away from the movable jaw 17.

[0039] As attached Figure 1 , 2As shown in Figures 4, 5, 7, and 8, the movable adjustment mechanism includes a first guide groove 11 formed in the middle of the connecting groove 4, which corresponds to the annular groove 20. A locking hole 8 is formed on the side of the connecting plate 3 near the first guide groove 11, and a second spring groove 12 is formed on the side of the connecting plate 3 away from the locking hole 8. A first spring groove 6 is formed in the inner cavity of the connecting groove 4 at a position corresponding to the second spring groove 12. A limiting groove 27 is formed on the top of the fixed jaw 2, and a cam groove 30 is formed in the middle of the connecting plate 3. The cross-sectional shapes of both the cam groove 30 and the limiting groove 27 are set to... The structure is fan-shaped. A return spring 7 is provided in the middle of the first spring groove 6. The two ends of the return spring 7 are fixedly connected to the walls of the inner cavities of the first spring groove 6 and the second spring groove 12, respectively. A locking post 10 is provided in the middle of the locking hole 8. A stop pin 9 is fixedly connected to one side of the locking post 10. One end of the stop pin 9 extends into the interior of the first guide groove 11 and fits against the inner wall of the annular groove 20. A pin 31 is inserted in the middle of the limiting groove 27. A second guide groove 28 is opened in the middle of the limiting groove 27. Positioning holes 29 are symmetrically opened at both ends of the middle of the second guide groove 28. The cross-sectional shape of the second guide groove 28 is set as an arc structure. One end of the pin 31 extends into the interior of the cam groove 30 and is fitted with a cam disk 32. The top of the pin 31 is fixedly connected to a pin head 33. A knob 34 is set on the top of the pin head 33. A screw 35 is inserted into the top of the knob 34. One end of the screw 35 extends into the interior of the pin head 33 and is threadedly connected to the pin head 33. The knob 34 is parallel to the cam disk 32. A placement groove 36 is opened at the bottom of the knob 34 corresponding to the positioning hole 29. A second compression spring 37 is set in the middle of the placement groove 36. The top ball 38 and the two ends of the second compression spring 37 are fixedly connected to the inner wall of the placement groove 36 and the top wall of the top ball 38, respectively. One end of the top ball 38 extends into the interior of the positioning hole 29. When the cam plate 32 is in a horizontal state inside the cam groove 30, one end of the stop pin 9 extends into the interior of the ring groove 20 and fits against the wall of the ring groove 20. At this time, the position of the connecting plate 3 is fixed by the cylindrical pin 5 and the position of the cam plate 32 is fixed to the cam groove 30, so that the connecting plate 3 and the fixed jaw 2 can be fixed relative to each other, so as to realize the normal operation of the conventional wrench.

[0040] When the cam disk 32 is in a vertical position inside the cam groove 30, an active gap is generated between the cam disk 32 and the cam groove 30. The connecting plate 3 is fixed by the cylindrical pin 5, which causes a rotational gap between the connecting plate 3 and the fixed jaw 2.

[0041] When the connecting plate 3 rotates upward around the cylindrical pin 5, it presses the return spring 7. At the same time, it drives the locking pin 10 through the locking hole 8 to move the stop pin 9 inside the first guide groove 11, thereby moving one end of the stop pin 9 from inside the stud 22, thus unlocking the position of the stud pin 19.

[0042] When the connecting plate 3 rotates downward around the cylindrical pin 5, the reset spring 7 resets and drives one end of the stop pin 9 to insert into the annular groove 20 to lock the position of the stud pin 19. When the fixed jaw 2 rotates, it can rotate the target bolt by cooperating with the movable jaw 17.

[0043] Secondly, the pin 31 is fixedly connected to the knob 34 by the screw 35, and the knob 34 can be fixed by the top ball 38 sliding inside the second guide groove 28 and by the top ball 38 being inserted into the positioning hole 29. When the rotation resistance of the knob 34 is large, the top ball 38 can squeeze the second compression spring 37 to make the knob 34 rotate without affecting the adjustment of the orientation of the knob 34.

[0044] It is worth noting that the width of the first guide groove 11 is greater than the width of the stop pin 9, which facilitates the movement of the stop pin 9 inside the first guide groove 11.

[0045] The working principle of this utility model is as follows: When in use, push the knob 34 to rotate it 90 degrees around the screw 35 as the axis, thereby driving the cam plate 32 to rotate 90 degrees, so that both the knob 34 and the cam plate 32 are horizontal with the handle 1. At this time, the handle 1 and the fixed jaw 2 are relatively fixed, which facilitates the normal operation of the conventional wrench. For example, rotating the stud 22 controls the guide rod 16 to drive the movable jaw 17 to move, and clamps the target bolt through cooperation with the fixed jaw 2, and drives the target bolt to rotate by rotating the fixed jaw 2.

[0046] Push the knob 34 to make the knob 34 drive the cam disk 32 to rotate, so that the knob 34 and the cam disk 32 are perpendicular to the handle 1. At this time, the handle 1 and the fixed jaw 2 are movably connected.

[0047] At this time, rotating the handle 1 upward around the cylindrical pin 5 will sequentially move one end of the stop pin 9 out of the stud 22, thereby unlocking the position of the stud pin 19. When the handle 1 continues to move upward, it will cause the fixed jaw 2 to rotate. At this time, the bolt will squeeze the movable jaw 17, and the movable jaw 17 will drive the stud 22 to move through the guide rod 16 to squeeze the first compression spring 23 until the position of the bolt held by the fixed jaw 2 and the movable jaw 17 changes.

[0048] Then, move the handle 1 downward to drive one end of the stop pin 9 into the annular groove 20 to lock the position of the stud pin 19. At this time, the position of the movable jaw 17 can be fixed. When the handle 1 is moved downward continuously, the fixed jaw 2 is driven to rotate. The target bolt can be rotated by cooperating with the movable jaw 17, realizing the reciprocating and resettable cycle work of the adjustable wrench. It can reciprocate and cycle at any angle in a narrow space without having to adjust the angle back and forth, saving a lot of time and improving the customer experience.

[0049] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0050] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A reciprocating resettable movable wrench, comprising a handle (1), characterized in that: One end of the handle (1) is provided with a fixed jaw (2), and a connecting plate (3) is fixedly connected to the end of the handle (1) near the fixed jaw (2). A connecting groove (4) adapted to the connecting plate (3) is opened on one side of the fixed jaw (2). A cylindrical pin (5) is inserted in the middle of the connecting plate (3). Pin holes (26) corresponding to the cylindrical pin (5) are symmetrically opened on both sides of the connecting groove (4). The middle of the connecting groove (4) is provided with a movable adjustment mechanism for changing the relationship between the fixed jaw (2) and the handle (1). A sliding groove (13) is provided on one side of the fixed jaw (2). A receiving hole (14) is provided in the middle of the fixed jaw (2). A pin groove (15) is provided in the middle of the receiving hole (14). A movable jaw (17) is provided on one side of the fixed jaw (2). A rotating mechanism for driving the movable jaw (17) to move is provided in the middle of the receiving hole (14).

2. The reciprocating resettable adjustable wrench according to claim 1, characterized in that: The connecting plate (3) is located in the middle of the connecting groove (4), and the two ends of the cylindrical pin (5) extend into the interior of the pin hole (26). The handle (1) is provided with a wrench slot (25) at the end away from the fixed jaw (2).

3. A reciprocating resettable adjustable wrench according to claim 1, characterized in that: A guide rod (16) is fixedly connected to one side of the movable jaw (17). The inner cavity of the slide (13) is connected to one side of the inner cavity of the receiving hole (14). The guide rod (16) is located in the middle of the slide (13). The guide rod (16) has a toothed groove on the side near the receiving hole (14).

4. A reciprocating resettable adjustable wrench according to claim 1, characterized in that: The rotating mechanism includes a fine stud pin (18) inserted in the middle of the pin groove (15), a coarse stud pin (19) fixedly connected to one end of the fine stud pin (18), the coarse stud pin (19) being located on the side of the fine stud pin (18) near the movable jaw (17), an annular groove (20) being provided at one end of the coarse stud pin (19), and a stop groove (21) being provided in the middle of the fine stud pin (18).

5. A reciprocating resettable adjustable wrench according to claim 4, characterized in that: A stud (22) is fitted in the middle of the fine stud pin (18), and an open retaining ring (24) is provided in the middle of the retaining groove (21). The open retaining ring (24) is located on the side of the stud (22) away from the coarse stud pin (19). A first compression spring (23) is fitted in the middle of the coarse stud pin (19). The first compression spring (23) and the stud (22) are both located in the middle of the receiving hole (14). One side of the teeth of the stud (22) meshes with the tooth groove on one side of the guide rod (16).

6. A reciprocating resettable adjustable wrench according to claim 1, characterized in that: The movable adjustment mechanism includes a first guide groove (11) in the middle of the connecting groove (4), the first guide groove (11) corresponding to the ring groove (20), a locking hole (8) is provided on the side of the connecting plate (3) near the first guide groove (11), a second spring groove (12) is provided on the side of the connecting plate (3) away from the locking hole (8), a first spring groove (6) is provided in the inner cavity of the connecting groove (4) at the position corresponding to the second spring groove (12), a limiting groove (27) is provided on the top of the fixed jaw (2), a cam groove (30) is provided in the middle of the connecting plate (3), and the cross-sectional shape of the cam groove (30) and the limiting groove (27) are both set as a fan-shaped structure.

7. A reciprocating resettable adjustable wrench according to claim 6, characterized in that: A return spring (7) is provided in the middle of the first spring groove (6). The two ends of the return spring (7) are fixedly connected to the walls of the inner cavities of the first spring groove (6) and the second spring groove (12), respectively. A locking post (10) is provided in the middle of the locking hole (8). A stop pin (9) is fixedly connected to one side of the locking post (10). One end of the stop pin (9) extends into the interior of the first guide groove (11) and fits against the inner wall of the annular groove (20).

8. A reciprocating resettable adjustable wrench according to claim 6, characterized in that: A pin (31) is inserted in the middle of the limiting groove (27), and a second guide groove (28) is opened in the middle of the limiting groove (27). Positioning holes (29) are symmetrically opened at both ends of the middle of the second guide groove (28). The cross-sectional shape of the second guide groove (28) is set as an arc structure. One end of the pin (31) extends into the interior of the cam groove (30) and is fitted with a cam disc (32).

9. A reciprocating resettable adjustable wrench according to claim 8, characterized in that: The top of the pin (31) is fixedly connected to a pin head (33), and a knob (34) is provided on the top of the pin head (33). A screw (35) is inserted into the top of the knob (34), and one end of the screw (35) extends into the interior of the pin head (33) and is threadedly connected to the pin head (33). The knob (34) is parallel to the cam disc (32).

10. A reciprocating resettable adjustable wrench according to claim 9, characterized in that: The bottom of the knob (34) is provided with a placement groove (36) corresponding to the positioning hole (29). A second compression spring (37) and a top bead (38) are provided in the middle of the placement groove (36). The two ends of the second compression spring (37) are fixedly connected to the inner wall of the placement groove (36) and the top wall of the top bead (38), respectively. One end of the top bead (38) extends into the interior of the positioning hole (29).

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