A folding spanner

Abstract

The utility model relates to spanner technical field discloses a folding spanner, include: handle, have first accommodating groove, wrench head, rotate and connect in the front end of handle, connecting rod, rotate and connect in the rear end of handle, and support subassembly, including apron, support nail and first spring, the front end of apron is hinged in handle, and is used for opening or closing first accommodating groove, apron has perforation, the tip of support nail passes first spring and perforation in proper order, and the both ends of first spring are respectively with support nail and apron abut, wherein, when pressing support nail compression first spring, the tip of support nail abuts on the surface of wrench head. The folding spanner of the utility model has folding function, and it is convenient to use power.

Description

Technical Field

[0001] This utility model relates to the field of wrench technology, and in particular to a folding wrench. Background Technology

[0002] A wrench is a common installation and disassembly tool. It's a hand tool that uses leverage to tighten or loosen bolts, screws, nuts, and other threaded fasteners by using an opening or socket to hold the bolt or nut. Wrenches typically have openings or sockets at one or both ends of the handle to hold the bolt or nut. When using a wrench, applying force along the direction of thread rotation on the handle allows you to tighten or loosen the bolt or nut. Folding wrenches are also available; however, because the two ends of a folding wrench are not aligned, it makes applying force inconvenient and thus hinders its use. Utility Model Content

[0003] The purpose of this invention is to provide a folding wrench that has a folding function and is easy to use when applying force.

[0004] To achieve the above objectives, this utility model provides a folding wrench, comprising:

[0005] The handle has a first receiving groove;

[0006] A lever, rotatably connected to the front end of the handle;

[0007] A connecting rod, rotatably connected to the rear end of the handle; and

[0008] The support assembly includes a cover plate, a support pin, and a first spring. The front end of the cover plate is hinged to the handle and is used to open or close the first receiving slot. The cover plate has a through hole. The tip of the support pin passes through the first spring and the through hole in sequence. The two ends of the first spring abut against the support pin and the cover plate, respectively.

[0009] When the support pin is pressed to compress the first spring, the tip of the support pin abuts against the surface of the wrench head.

[0010] In some embodiments, the support assembly includes a gasket fitted around the periphery of the support pin, and the first spring abuts against the cover plate via the gasket.

[0011] In some embodiments, the support assembly includes a magnetic block disposed at the rear end of the cover plate, and when the cover plate closes the first receiving slot, the cover plate is connected to the handle via the magnetic block.

[0012] In some embodiments, the folding wrench includes a positioning component, the connecting rod has a second receiving groove, the positioning component is disposed in the second receiving groove, and the positioning component is used to define a rotation angle between the connecting rod and the handle.

[0013] In some embodiments, the positioning assembly includes a second spring, two pressing blocks, and two limiting pins. The two pressing blocks are respectively connected to both ends of the second spring, and the two limiting pins are connected to the two pressing blocks in a one-to-one correspondence. The rear end of the handle has a first hinge seat. The inner walls on both sides of the first hinge seat have rotating holes and multiple limiting grooves. The multiple limiting grooves are arranged around the outer periphery of the rotating holes. Both sides of the connecting rod have rotating pins. The two rotating pins are installed in the two rotating holes in a one-to-one correspondence. The end of the limiting pin away from the pressing block slides through the connecting rod and is disposed in one of the limiting grooves.

[0014] In some embodiments, the positioning component includes a drive block and a third spring. One side of the drive block has two inwardly recessed first inclined surfaces. The third spring is disposed on the other side of the drive block, and its two ends are respectively connected to the inner wall of the drive block and the inner wall of the second receiving groove. The pressing block has a second inclined surface. The two second inclined surfaces of the pressing blocks correspond one-to-one with the two first inclined surfaces of the drive block. When the drive block moves closer to the pressing block, the second inclined surface presses against the first inclined surface, causing the two pressing blocks to move closer to each other. At this time, the limiting pin disengages from the limiting groove.

[0015] In some embodiments, the folding wrench includes a detection component, the wrench head having a third receiving groove, the detection component being disposed in the third receiving groove, and the detection component being used to detect the torque between the wrench head and the handle.

[0016] In some embodiments, the detection assembly includes a torque sensor, a connecting bracket, and a second hinge seat. The torque sensor is mounted on the wrench head and connected to the second hinge seat via the connecting bracket. The front end of the handle is rotatably connected to the second hinge seat.

[0017] In some embodiments, the wrench head is a ratchet wrench head, the wrench head having a connector and a lever, the connector being used to connect a sleeve, and the lever being used to adjust the rotation direction of the connector.

[0018] In some embodiments, a limiting block is included, the limiting block being disposed in the first receiving groove, the limiting block being used to place the support pin.

[0019] This utility model provides a folding wrench, which has the following advantages compared with the prior art:

[0020] The wrench head is rotatably connected to the front end of the handle, and the connecting rod is rotatably connected to the rear end of the handle. The support assembly includes a cover plate, a support pin, and a first spring. The front end of the cover plate is hinged to the handle and is used to open or close the first receiving slot. The cover plate has a through hole. The tip of the support pin passes through the first spring and the through hole in sequence. The two ends of the first spring abut against the support pin and the cover plate, respectively. When the support pin is pressed, the first spring is compressed, and the tip of the support pin abuts against the surface of the wrench head. In this way, both hands can press the support pin and hold the connecting rod, giving the wrench a folding function and making it easy to apply force. Attached Figure Description

[0021] Figure 1 A first three-dimensional structural schematic diagram of a folding wrench provided in an embodiment of this utility model.

[0022] Figure 2 A second three-dimensional structural diagram of the folding wrench provided in an embodiment of this utility model.

[0023] Figure 3 An exploded view of the folding wrench provided in an embodiment of this utility model.

[0024] Figure 4 This is an enlarged structural diagram of the positioning component of the folding wrench provided in an embodiment of the present utility model.

[0025] Figure 5 This is an enlarged structural diagram of the detection component of the folding wrench provided in an embodiment of the present utility model.

[0026] In the diagram: 1. Handle; 11. First receiving groove; 12. First hinge seat; 13. Rotating hole; 14. Limiting groove; 15. Limiting block; 2. Wrench head; 21. Third receiving groove; 22. Connector; 23. Lever; 3. Linkage rod; 31. Second receiving groove; 32. Rotating pin; 4. Support assembly; 41. Cover plate; 42. Support pin; 43. First spring; 44. Washer; 45. Magnetic block; 5. Positioning assembly; 51. Second spring; 53. Pressing block; 54. Limiting pin; 54. Drive block; 55. Third spring; 6. Detection assembly; 61. Torque sensor; 63. Second hinge seat. Detailed Implementation

[0027] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0028] It should be understood that in the description of this application, the terms "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used solely for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. That is, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Furthermore, unless otherwise stated, "a plurality of" means two or more.

[0029] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0030] like Figures 1-5 As shown, the folding wrench of this utility model embodiment includes: a handle 1, a wrench head 2, a connecting rod 3, and a support assembly 4.

[0031] The handle 1 has a first receiving groove 11. The wrench head 2 is rotatably connected to the front end of the handle 1. The connecting rod 3 is rotatably connected to the rear end of the handle 1. Specifically, bending is achieved by rotating the wrench head 2 and the connecting rod 3, and the extension directions of the wrench head 2 and the connecting rod 3 are kept opposite. At this time, the entire folding wrench can be inserted into a narrow space for use, avoiding the problem of an excessively long handle 1 affecting the work.

[0032] The support assembly 4 includes a cover plate 41, a support pin 42, and a first spring 43. The front end of the cover plate 41 is hinged to the handle 1 and is used to open or close the first receiving groove 11. The cover plate 41 has a through hole, and the tip of the support pin 42 passes through the first spring 43 and the through hole in sequence. The two ends of the first spring 43 abut against the support pin 42 and the cover plate 41, respectively. When the folding wrench is in use, the cover plate 41 is bent perpendicular to the handle 1, and the support pin 42 and the first spring 43 are mounted on the cover plate 41. When the folding wrench is not in use, the cover plate 41 is closed to close the first receiving groove 11, and the support pin 42 and the first spring 43 are removed and stored in the first receiving groove 11.

[0033] In this embodiment, when the support pin 42 is pressed to compress the first spring 43, the tip of the support pin 42 abuts against the surface of the wrench head 2. Alternatively, the tip of the support pin 42 abuts against the workpiece, thus achieving stable support.

[0034] Based on the above structural configuration, the wrench has a folding function because the wrench head 2 is rotatably connected to the front end of the handle 1 and the connecting rod 3 is rotatably connected to the rear end of the handle 1. The support assembly 4 includes a cover plate 41, a support pin 42 and a first spring 43. The front end of the cover plate 41 is hinged to the handle 1 and is used to open or close the first receiving groove 11. The cover plate 41 has a through hole. The tip of the support pin 42 passes through the first spring 43 and the through hole in sequence. The two ends of the first spring 43 abut against the support pin 42 and the cover plate 41 respectively. In this way, when using, both hands can press the support pin 42 and hold the connecting rod 3 respectively, which is convenient for applying force.

[0035] like Figure 1 As shown, in some embodiments, the support assembly 4 includes a washer 44, which is sleeved on the outer periphery of the support pin 42, and the first spring 43 abuts against the cover plate 41 through the washer 44. In this way, the washer 44 can support the first spring 43.

[0036] like Figure 1 As shown, in some embodiments, the support component 4 includes a magnetic block 45 located at the rear end of the cover plate 41. When the cover plate 41 closes the first receiving groove 11, the cover plate 41 is connected to the handle 1 via the magnetic block 45. In this way, the position of the cover plate 41 can be kept stable when the folding wrench is not in use.

[0037] like Figure 4 As shown, in some embodiments, the folding wrench includes a positioning component 5, the connecting rod 3 has a second receiving groove 31, the positioning component 5 is disposed in the second receiving groove 31, and the positioning component 5 is used to limit the rotation angle between the connecting rod 3 and the handle 1. In this way, the rotation angle between the connecting rod 3 and the handle 1 is limited by the positioning component 5 to maintain ease of use.

[0038] like Figure 3 and 4 As shown, in some embodiments, the positioning component 5 includes a second spring 51, two pressing blocks 52, and two limiting pins 53. The two pressing blocks 52 are respectively connected to both ends of the second spring 51, and the two limiting pins 53 are connected to the two pressing blocks 52 in a one-to-one correspondence. The rear end of the handle 1 has a first hinge seat 12. The inner walls of both sides of the first hinge seat 12 have rotating holes 13 and multiple limiting grooves 14. The multiple limiting grooves 14 are arranged around the outer periphery of the rotating holes 13. Both sides of the connecting rod 3 have rotating pins 32. The two rotating pins 32 are installed in the two rotating holes 13 in a one-to-one correspondence. The end of the limiting pin 53 away from the pressing block 52 slides through the connecting rod 3 and is disposed in one of the limiting grooves 14. In this way, by inserting the limiting pin 53 into different limiting grooves 14, different rotation angles between the connecting rod 3 and the handle 1 can be limited.

[0039] like Figure 4As shown, in some embodiments, the positioning component 5 includes a drive block 54 and a third spring 55. One side of the drive block 54 has two inwardly recessed first inclined surfaces. The third spring 55 is located on the other side of the drive block 54, with its two ends connected to the drive block 54 and the inner wall of the second receiving groove 31, respectively. The pressing blocks 52 have second inclined surfaces, and the second inclined surfaces of the two pressing blocks 52 correspond one-to-one with the two first inclined surfaces of the drive block 54. When the drive block 54 approaches the pressing blocks 52, the second inclined surfaces press against the first inclined surfaces, causing the two pressing blocks 52 to move closer together. At this time, the limiting pin 53 disengages from the limiting groove 14. Furthermore, when the drive block 54 is released, the third spring 55 resets the drive block 54, and the second spring 51 resets the two pressing blocks 52. The resulting elastic force allows the limiting pin 53 to insert into the limiting groove 14. To facilitate the movement of the drive block 54, a stop is extended from the drive block 54. Moving the drive block 54 can be achieved by moving the stop.

[0040] like Figure 5 As shown, in some embodiments, the folding wrench includes a detection component 6, the wrench head 2 has a third receiving groove 21, the detection component 6 is disposed in the third receiving groove 21, and the detection component 6 is used to detect the torque between the wrench head 2 and the handle 1. In this way, the output torque of the folding wrench can be precisely controlled.

[0041] like Figure 5 As shown, in some embodiments, the detection component 6 includes a torque sensor 61, a connecting bracket 62, and a second hinge seat 63. The torque sensor 61 is mounted on the wrench head 2 and connected to the second hinge seat 6 via the connecting bracket 62. The front end of the handle 1 is rotatably connected to the second hinge seat 63. Thus, the torque between the wrench head 2 and the handle 1 is detected by the torque sensor 61. For ease of observation, a display is mounted on the connecting bracket 62 to display the torque value detected by the torque sensor 61.

[0042] In some embodiments, the wrench head is a ratchet wrench head, which has a connector 22 and a lever 23. The connector 22 is used to connect to the sleeve, and the lever 23 is used to adjust the rotation direction of the connector 22. For example, by rotating the lever 23, the connector 22 of the ratchet wrench head can only rotate clockwise. At this time, the position of the connector 22 in the counterclockwise direction is fixed, and vice versa.

[0043] like Figure 1 As shown, in some embodiments, a limiting block 15 is included, which is disposed in the first receiving groove 11 and is used to place the support pin 42. Specifically, the limiting block 15 has a slot, which limits the position of the support pin 42, at which time the first spring 43 and the washer 44 are removed from the support pin 42.

[0044] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A folding wrench, characterized in that, include: The handle has a first receiving groove; A lever, rotatably connected to the front end of the handle; A connecting rod is rotatably connected to the rear end of the handle; as well as The support assembly includes a cover plate, a support pin, and a first spring. The front end of the cover plate is hinged to the handle and is used to open or close the first receiving slot. The cover plate has a through hole. The tip of the support pin passes through the first spring and the through hole in sequence. The two ends of the first spring abut against the support pin and the cover plate, respectively. When the support pin is pressed to compress the first spring, the tip of the support pin abuts against the surface of the wrench head.

2. The folding wrench according to claim 1, characterized in that, The support assembly includes a gasket that is sleeved around the outer periphery of the support nail, and the first spring abuts against the cover plate through the gasket.

3. The folding wrench according to claim 1, characterized in that, The support assembly includes a magnetic block located at the rear end of the cover plate. When the cover plate closes the first receiving slot, the cover plate is connected to the handle via the magnetic block.

4. The folding wrench according to claim 1, characterized in that, The folding wrench includes a positioning component, the connecting rod has a second receiving groove, the positioning component is disposed in the second receiving groove, and the positioning component is used to limit the rotation angle between the connecting rod and the handle.

5. The folding wrench according to claim 4, characterized in that, The positioning assembly includes a second spring, two pressing blocks, and two limiting pins. The two pressing blocks are respectively connected to both ends of the second spring, and the two limiting pins are connected to the two pressing blocks in a one-to-one correspondence. The rear end of the handle has a first hinge seat. The inner walls of both sides of the first hinge seat have rotating holes and multiple limiting grooves. The multiple limiting grooves are arranged around the outer periphery of the rotating holes. Both sides of the connecting rod have rotating pins. The two rotating pins are installed in the two rotating holes in a one-to-one correspondence. The end of the limiting pin away from the pressing block slides through the connecting rod and is disposed in one of the limiting grooves.

6. The folding wrench according to claim 5, characterized in that, The positioning component includes a drive block and a third spring. One side of the drive block has two inwardly recessed first inclined surfaces. The third spring is located on the other side of the drive block, and its two ends are respectively connected to the drive block and the inner wall of the second receiving groove. The pressing block has a second inclined surface. The two second inclined surfaces of the pressing blocks correspond one-to-one with the two first inclined surfaces of the drive block. When the drive block moves closer to the pressing block, the second inclined surface presses against the first inclined surface, causing the two pressing blocks to move closer to each other. At this time, the limiting pin disengages from the limiting groove.

7. The folding wrench according to claim 1, characterized in that, The folding wrench includes a detection component, the wrench head has a third receiving groove, the detection component is disposed in the third receiving groove, and the detection component is used to detect the torque between the wrench head and the handle.

8. The folding wrench according to claim 7, characterized in that, The detection assembly includes a torque sensor, a connecting bracket, and a second hinge seat. The torque sensor is mounted on the wrench head and connected to the second hinge seat via the connecting bracket. The front end of the handle is rotatably connected to the second hinge seat.

9. The folding wrench according to claim 1, characterized in that, The wrench head is a ratchet wrench head, which has a connector and a lever. The connector is used to connect to the sleeve, and the lever is used to adjust the rotation direction of the connector.

10. The folding wrench according to claim 1, characterized in that, It includes a limiting block, which is disposed in the first receiving groove and is used to place the support nail.

Images