A jack handle structure not easy to fall off

Abstract

The utility model discloses a jack handle structure not easy to fall, relates to the field of jack auxiliary equipment technology, which includes handle, the one end vertical connection of handle has handle bar, and the side of handle bar away from handle is equipped with hexagonal sleeve, and the bolt head is along the radial and is equipped with the limit slot, and the limit slot bottom installs limit rod and elastic part no.

Description

Technical Field

[0001] This utility model relates to the field of jack auxiliary equipment technology, and in particular to a jack handle structure that is not easily detached. Background Technology

[0002] Currently, jacks play a very important role in vehicle repair, industrial assembly, and emergency rescue. They provide working space for operators by lifting the vehicle body or heavy objects. Jacks are usually equipped with a handle on one side, and operators can raise or lower the output end of the jack by pressing the handle.

[0003] To facilitate storage and transportation, adapt to operational needs, and improve safety, traditional jacks typically have detachable handles. This allows the handle to be stored and transported separately. In scenarios requiring rapid lifting and lowering, such as heavy equipment installation and construction, the handle needs to be removed, and a drill bit is used to operate the jack, enabling rapid lifting and lowering of the jack's output end. Jacks are equipped with bolts, which consist of a bolt shank and a bolt head. The bolt shank is inserted into the jack, and the handle is usually fitted over the bolt head.

[0004] Regarding the aforementioned technologies, the handle and bolt are locked together by their shapes, which makes it easy for the handle to fall off or be lost after being removed during operation, thus hindering the ease of use and safety of the equipment. Utility Model Content

[0005] To improve the convenience and safety of equipment use, this application provides a jack handle structure that is not easily detached.

[0006] This application provides a jack handle structure that is not easily detached, employing the following technical solution: A jack handle structure that is not easily detached includes a handle, a handle rod vertically connected to the handle, and a hexagonal sleeve connected to the side of the handle rod away from the handle. In use, the hexagonal sleeve is fitted onto the outside of a bolt head and fits against the outer wall of the bolt head. An annular groove is opened circumferentially on the inner wall of the side of the hexagonal sleeve away from the handle. A retaining ring is placed in the annular groove. The retaining ring is made of elastic material and its diameter is smaller than the distance between the two vertices of the hexagonal sleeve. A limit groove is opened radially on the bolt head. A limit rod is provided at the bottom of the limit groove. An elastic element is provided on the limit rod. A limit block is placed at the opening of the limit groove. One end of the elastic element is fixedly connected to the bottom of the limit groove, and the other end is fixedly connected to the limit block. In its natural state, the elastic element tends to push the limit block away from the bottom of the limit groove. A limit hole adapted to the limit block is opened on the hexagonal sleeve. When the hexagonal sleeve is fitted onto the outside of the bolt head, the limit block is located in the limit hole and fits against the inner wall of the limit hole. The retaining ring abuts against the side of the bolt head near the jack.

[0007] By adopting the above technical solution, the operator rotates the handle by gripping the handle rod. The handle rod drives the hexagonal sleeve to rotate along its own axis, which in turn drives the bolt head to rotate, thereby driving the jack to work. The annular groove accommodates and limits the retaining ring. When the hexagonal sleeve is fitted onto the bolt head, the retaining ring abuts against the bolt head, reducing the probability of the hexagonal sleeve detaching from the bolt head. The bottom of the limiting groove supports and fixes the limiting rod. When the operator presses the limiting block into the limiting groove, the elastic element contracts. The limiting rod supports and guides the elastic element. When the hexagonal sleeve is fitted onto the bolt head, the elastic element pushes the limiting block away from the bottom of the limiting groove. The bolt head is fixed to the hexagonal sleeve by inserting the limiting block into the limiting hole, reducing the probability of relative movement between the hexagonal sleeve and the bolt head, improving the connection stability between the bolt head and the hexagonal sleeve, and thus improving the stability and safety of the equipment during the operator's rotation.

[0008] Optionally, the limiting block is spherical, and the hexagonal sleeve has a guide surface on the side away from the jack, with the guide surface inclined from the bolt head toward the jack.

[0009] By adopting the above technical solution, when the hexagonal sleeve is fitted onto the bolt head, the guide surface guides the limiting block, the spherical surface fits with the guide surface, and the guide surface moves with the hexagonal sleeve to push the limiting block towards the bottom of the limiting groove. When the limiting block is aligned with the limiting hole, it is inserted into the limiting hole under the push of the elastic element, which helps to improve the installation efficiency and convenience of the hexagonal sleeve and the bolt head.

[0010] Optionally, the cross-section of the limiting hole is an annular shape, and the diameter of the annular shape gradually decreases from the hexagonal sleeve towards the handle rod.

[0011] By adopting the above technical solution, the hexagonal sleeve fits against the surface of the limiting block through the inner wall of the limiting hole, reducing the probability of the limiting block shaking. At the same time, it provides operators with a larger operating space, making it easier for operators to press the limiting block to disengage the hexagonal sleeve from the limiting hole, which helps to improve the ease of disassembling the hexagonal sleeve and the bolt head.

[0012] Optionally, the retaining ring may have a notch at any point.

[0013] By adopting the above technical solution, when the operator slides the hexagonal sleeve outward, the retaining ring deforms, and the notch facilitates the retaining ring to pass through the bolt head, making it easier for the hexagonal sleeve to separate from the bolt head.

[0014] Optionally, the inner wall diameter of the annular groove on the side closer to the bolt head along its own axis is larger than the inner wall diameter on the side farther from the bolt head.

[0015] By adopting the above technical solution, the inner wall of the limiting groove near the jack supports the retaining ring while reducing the support area with the retaining ring. This causes the retaining ring to deform when the hexagonal sleeve slides outward along the bolt head, further improving the ease of disassembly between the hexagonal sleeve and the bolt head.

[0016] Optionally, the bolt rod has two opposing cavities inside, each containing a positioning plate. Several elastic elements are provided on the side of the two positioning plates that are close to each other. One end of each elastic element is fixedly connected to the positioning plate, and the other end is fixedly connected to the inner wall of the cavity. In its natural state, the elastic elements tend to push the two positioning plates away from each other. A positioning block is provided on the side of the positioning plate away from the jack. A positioning groove corresponding to the positioning block is provided circumferentially on the inner wall of the hexagonal sleeve. The positioning block is inserted into the positioning groove and fits against the inner wall of the positioning groove. A push plate is provided on the end of the positioning plate away from the arc-shaped piece, protruding from the surface of the bolt rod.

[0017] By adopting the above technical solution, the operator can press the push plate to move the two positioning plates closer to each other, thereby causing the hexagonal sleeve to move away from the bolt head. When the push plate is lifted, the elastic element 2 pushes the positioning plate into the positioning groove. The inner wall of the cavity supports the positioning plate through the elastic element 2. The bolt rod limits the displacement of the hexagonal sleeve along the bolt rod axis through the positioning block, reducing the probability of the hexagonal sleeve being damaged by hard contact with the bolt head or jack when the motor rotates. This helps to improve the installation stability and safety of the hexagonal sleeve when the motor rotates.

[0018] Optionally, the outer wall of the hexagonal sleeve has multiple oil injection holes along the positioning groove.

[0019] By adopting the above technical solution, the operator injects lubricating oil into the positioning groove through the oil injection hole. The lubricating oil lubricates the positioning block and the inner wall of the positioning groove, reducing the friction between the positioning block and the inner wall of the positioning groove during the high-speed rotation of the motor, reducing the probability of wear between the inner wall of the positioning groove and the positioning block, and helping to extend the service life of the device.

[0020] Optionally, the end of the positioning block away from the positioning plate is arc-shaped.

[0021] By adopting the above technical solution, the arc-shaped surface reduces the contact area between the positioning block and the positioning groove, further reducing the probability of wear caused by friction between the positioning block and the positioning groove, which is beneficial to improving the service life of the device.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. The operator rotates the handle by gripping the lever, which drives the hexagonal sleeve to rotate along its own axis. The hexagonal sleeve drives the bolt head to rotate, thereby driving the jack to work. The annular groove accommodates and limits the retaining ring. When the hexagonal sleeve is fitted onto the bolt head, the retaining ring abuts against the bolt head, reducing the probability of the hexagonal sleeve detaching from the bolt head. The bottom of the limiting groove supports and fixes the limiting rod. The operator presses the limiting block into the limiting groove, causing the elastic element to contract. The limiting rod supports and guides the elastic element. When the hexagonal sleeve is fitted onto the bolt head, the elastic element pushes the limiting block away from the bottom of the limiting groove. The bolt head is fixed to the hexagonal sleeve by inserting the limiting block into the limiting hole, reducing the probability of relative movement between the hexagonal sleeve and the bolt head, improving the connection stability between the bolt head and the hexagonal sleeve, and thus improving the stability and safety of the equipment during the operator's rotation. 2. When the hexagonal sleeve is fitted onto the bolt head, the guide surface guides the limiting block, the spherical surface fits with the guide surface, and the guide surface moves with the hexagonal sleeve to push the limiting block towards the bottom of the limiting groove. When the limiting block is aligned with the limiting hole, it is inserted into the limiting hole under the push of the elastic element, which helps to improve the installation efficiency and convenience of the hexagonal sleeve and the bolt head. 3. The hexagonal sleeve fits against the surface of the limiting block through the inner wall of the limiting hole, reducing the probability of the limiting block shaking. At the same time, it provides a larger operating space for the operator, making it easier for the operator to press the limiting block to disengage the hexagonal sleeve from the limiting hole, which helps to improve the ease of disassembly of the hexagonal sleeve and the bolt head. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of Example 1.

[0024] Figure 2 This is a schematic diagram designed to highlight the internal structure of the bolt head.

[0025] Figure 3 A schematic diagram intended to highlight the location of the cavity in Example 2.

[0026] Explanation of reference numerals in the attached diagram: 1. Handle; 2. Handle rod; 3. Hexagonal sleeve; 31. Annular groove; 32. Snap ring; 33. Positioning groove; 34. Limiting hole; 35. Oil injection hole; 36. Guide surface; 4. Bolt head; 41. Limiting groove; 42. Limiting rod; 43. Limiting block; 44. Elastic element one; 5. Bolt rod; 51. Cavity; 52. Positioning plate; 53. Push plate; 54. Positioning block; 55. Elastic element two; 6. Jack. Detailed Implementation

[0027] The present application will be further described in detail below with reference to all the accompanying drawings.

[0028] This application discloses a jack handle structure that is not easily detached.

[0029] Example 1 Reference Figure 1 and Figure 2 A jack 6 handle structure that is not easy to fall off includes a handle 1, a handle rod 2 vertically connected to the handle 1, and a hexagonal sleeve 3 fixedly installed on the side of the handle rod 2 away from the handle 1. The hexagonal sleeve 3 is adapted to the bolt head 4. When the hexagonal sleeve 3 is fitted onto the bolt head 4, the outer wall of the bolt head 4 fits against the inner wall of the hexagonal sleeve 3. When the operator turns the handle 1, the handle 1 drives the hexagonal sleeve 3 to rotate through the handle rod 2, and the hexagonal sleeve 3 drives the bolt head 4 to rotate, thereby driving the jack 6 to work.

[0030] Reference Figure 1 and Figure 2 The bolt head 4 has a limiting groove 41 opened radially. A limiting rod 42 is fixedly installed at the bottom of the limiting groove 41. An elastic element 44 is installed at the bottom of the limiting groove 41. The elastic element 44 can be a spring. The spring is sleeved on the outside of the limiting rod 42. One end of the spring along the length direction is fixedly connected to the bottom of the limiting groove 41, and the other end is connected to a limiting block 43. The limiting block 43 is spherical. The limiting block 43 is slidably connected to the inner wall of the limiting groove 41 along the length direction of the limiting groove 41. The limiting groove 41 accommodates and guides the limiting block 43.

[0031] Reference Figure 1 and Figure 2 The side of the hexagonal sleeve 3 away from the jack 6 is designated as a guide surface 36. The guide surface 36 is inclined from the bolt head 4 toward the jack 6. When the hexagonal sleeve 3 approaches the bolt head 4 along the axis of the bolt head 4, the guide surface 36 is in contact with the surface of the limiting block 43. The guide surface 36 pushes the limiting block 43 to move towards the bottom of the limiting groove 41 as the hexagonal sleeve 3 moves outward, thereby allowing the hexagonal sleeve 3 to be fitted on the outside of the bolt head 4, which is beneficial to improving the adjustment convenience of the limiting block 43.

[0032] Reference Figure 1 and Figure 2 The hexagonal sleeve 3 has a limiting hole 34 that matches the limiting block 43 along the radial direction. When the hexagonal sleeve 3 slides along the axis of the bolt head 4 and is completely fitted onto the bolt head 4, the limiting hole 34 is directly opposite the limiting block 43. The limiting block 43 is inserted into the limiting hole 34 under the push of the elastic element 44. The bolt head 4 is fixed by the limiting block 43 being inserted into the limiting hole 34, which reduces the probability of relative movement between the hexagonal sleeve 3 and the bolt head 4 during rotation and helps to improve the stability of the hexagonal sleeve 3 during rotation.

[0033] Reference Figure 1 and Figure 2The limiting hole 34 has a circular cross-section. The diameter of the ring gradually decreases from the outside to the inside along the radial direction of the hexagonal sleeve 3, and is the smallest in the middle, smaller than the diameter of the limiting ring. The diameter of the ring is consistent from the middle position to the axis along the thickness of the hexagonal sleeve 3 to accommodate the limiting block 43. At the same time, the diameter of the limiting hole 34 is larger at the part away from the axis of the hexagonal sleeve 3, which makes it easier for the operator to press down on the limiting block 43, causing the limiting block 43 to disengage from the limiting hole 34. This allows the hexagonal sleeve 3 to slide relative to the bolt head 4, facilitating the disengagement of the hexagonal sleeve 3 from the bolt head 4. This improves the installation stability between the hexagonal sleeve 3 and the bolt head 4, thereby improving the stability and safety of the operator when turning the handle.

[0034] Reference Figure 1 and Figure 2 The inner wall of the hexagonal sleeve 3 near the jack 6 has an annular groove 31 along its circumference. A retaining ring 32 is placed in the annular groove 31. The diameter of the retaining ring 32 is smaller than the distance between the two opposing ends of the hexagonal sleeve 3. The retaining ring 32 is made of a deformable material, which can be metal. When the hexagonal sleeve 3 is fitted onto the bolt head 4, the retaining ring 32 abuts against the side of the bolt head 4 near the jack 6. The bolt head 4 blocks the hexagonal sleeve 3 through the retaining ring 32, reducing the probability of the hexagonal sleeve 3 detaching from the bolt head 4 to the outside during rotation. This further improves the installation stability between the hexagonal sleeve 3 and the bolt head 4, and further improves the stability and safety of the operator when turning the handle.

[0035] Reference Figure 1 and Figure 2 The diameter of the side wall of the annular groove 31 near the jack 6 is smaller than the diameter of the inner wall of the annular groove 31 near the bolt head 4. The retaining ring 32 has a notch, which makes it easier for the operator to slide the hexagonal sleeve 3 outward along the diameter of the bolt rod 5. The diameter of the retaining ring 32 increases and deforms in the direction of the jack 6, so that the retaining ring 32 passes through the bolt head 4. The inner wall of the annular groove 31 near the jack 6 provides deformation space for the retaining ring 32, thereby allowing the hexagonal sleeve 3 to detach from the bolt head 4, and finally realize the disassembly of the handle. This improves the disassembly convenience of the device while maintaining the working stability of the device.

[0036] The implementation principle of the jack 6 handle structure that is not easy to fall off in this application embodiment is as follows: When the operator turns the handle 1, the handle 1 drives the handle rod 2 to rotate along its own axis. The handle rod 2 drives the hexagonal sleeve 3 to rotate along its own axis. The hexagonal sleeve 3 drives the bolt head 4 to rotate, thereby driving the jack 6 to work. The bolt head 4 is fixed to the hexagonal sleeve 3 by the limit block 43 inserted into the limit hole 34, which improves the stability between the hexagonal sleeve 3 and the bolt head 4. The limit groove 41 supports the retaining ring 32. The retaining ring 32 abuts against the side of the bolt head 4 near the jack 6, reducing the probability of the hexagonal sleeve 3 moving outward and falling off the bolt head 4, thereby improving the connection stability between the bolt head 4 and the hexagonal sleeve 3, and thus improving the stability and safety during the rotation process.

[0037] Example 2 The difference between this embodiment and embodiment 1 is that two cavities 51 are formed inside the bolt rod 5 along the length direction, and the two cavities 51 are arranged opposite to each other.

[0038] Reference Figure 3 A positioning plate 52 is slidably connected to the cavity 51 along the radial direction of the bolt rod 5. An elastic element 55 is connected between the positioning plate 52 and the inner wall of the cavity 51. The elastic element 55 can be a spring. One end of the spring along the length direction is fixedly connected to the positioning plate 52, and the other end is fixedly connected to the inner wall of the cavity 51. In its natural state, the elastic element 55 pushes the positioning plate 52 in a direction away from the axis of the bolt rod 5. The inner wall of the cavity 51 guides and limits the movement of the positioning plate 52.

[0039] Reference Figure 3 A push plate 53 is installed on the end of the positioning plate 52 near the jack 6. The push plate 53 protrudes from the surface of the bolt rod 5, making it easy for the operator to press. A positioning block 54 is installed on the end of the positioning plate 52 away from the push plate 53. The inner wall of the hexagonal sleeve 3 has a positioning groove 33 that matches the positioning block 54. The positioning block 54 is inserted into the positioning groove 33 and slidably connected to the inner wall of the positioning groove 33. When the motor drives the bolt head 4 to rotate at high speed, the bolt rod 5 is positioned by the positioning block 54 inserted into the positioning groove 33. This reduces the probability that the hexagonal sleeve 3 will slide due to vibration during the rotation of the bolt rod 5, causing contact with the jack 6 or the bolt head 4, resulting in wear or affecting the rotation of the bolt head 4. This helps to improve the stability of the device and extend its service life.

[0040] Reference Figure 3The positioning block 54 has an arc-shaped side away from the axis of the bolt rod 5. This arc shape reduces the contact area between the positioning block 54 and the surface of the positioning groove 33, thereby reducing the probability of wear caused by friction between the positioning block 54 and the surface of the positioning groove 33. An oil injection hole 35, communicating with the positioning groove 33, is provided circumferentially on the hexagonal sleeve 3. Operators inject lubricating oil between the positioning groove 33 and the positioning block 54 through the oil injection hole 35. This lubrication further reduces the probability of wear caused by friction between the positioning block 54 and the positioning groove 33, thus extending the service life of the device.

[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A jack handle structure that is not easily detached, comprising a handle (1) and a bolt, the bolt comprising a bolt head (4) and a bolt shank (5), characterized in that: The handle (1) is vertically connected to a handle rod (2). A hexagonal sleeve (3) is connected to the side of the handle rod (2) away from the handle (1). In use, the hexagonal sleeve (3) is fitted onto the outside of the bolt head (4) and fits against the outer wall of the bolt head (4). An annular groove (31) is opened circumferentially on the inner wall of the side of the hexagonal sleeve (3) away from the handle (1). A retaining ring (32) is placed in the annular groove (31). The retaining ring (32) is made of elastic material. The diameter of the retaining ring (32) is smaller than the distance between the two vertices of the hexagonal sleeve (3). A limiting groove (41) is opened radially on the bolt head (4). A limiting rod (42) is provided at the bottom of the limiting groove (41). The upper part is provided with an elastic element (44), and a limiting block (43) is placed at the opening of the limiting groove (41). One end of the elastic element (44) is fixedly connected to the bottom of the limiting groove (41), and the other end is fixedly connected to the limiting block (43). The elastic element (44) in its natural state tends to push the limiting block (43) away from the bottom of the limiting groove (41). The hexagonal sleeve (3) has a limiting hole (34) that is compatible with the limiting block (43). When the hexagonal sleeve (3) is fitted on the outside of the bolt head (4), the limiting block (43) is located in the limiting hole (34) and fits against the inner wall of the limiting hole. The retaining ring (32) abuts against the side of the bolt head (4) near the jack (6).

2. The jack handle structure that is not easily detached according to claim 1, characterized in that: The limiting block (43) is spherical, and the hexagonal sleeve (3) has a guide surface (36) on the side away from the jack (6). The guide surface (36) is inclined from the bolt head (4) towards the jack (6).

3. The jack handle structure that is not easily detached according to claim 1, characterized in that: The limiting hole (34) has a circular cross-section, and the diameter of the circular ring gradually decreases from the hexagonal sleeve (3) to the handle rod (2).

4. The jack handle structure that is not easily detached according to claim 1, characterized in that: The card ring (32) has a notch at any point.

5. The jack handle structure that is not easily detached according to claim 1, characterized in that: The inner wall diameter of the annular groove (31) on the side closer to the bolt head (4) along its own axis is larger than the inner wall diameter on the side farther away from the bolt head (4).

6. The jack handle structure that is not easily detached according to claim 1, characterized in that: The bolt rod (5) has two opposing cavities (51) inside. A positioning plate (52) is provided in the cavity (51). On the side of the two positioning plates (52) that are close to each other, there are several elastic elements (55). One end of the elastic element (55) is fixedly connected to the positioning plate (52), and the other end is fixedly connected to the inner wall of the cavity (51). In its natural state, the elastic element (55) has the tendency to push the two positioning plates (52) away from each other. A positioning block (54) is provided on the side of the positioning plate (52) that is away from the jack (6). A positioning groove (33) corresponding to the positioning block (54) is opened along the circumferential direction on the inner wall of the hexagonal sleeve (3). The positioning block (54) is inserted into the positioning groove (33) and fits against the inner wall of the positioning groove (33). A push plate (53) is provided on the end of the positioning plate (52) that is away from the arc plate. The push plate (53) protrudes from the surface of the bolt rod (5).

7. The jack handle structure that is not easily detached according to claim 1, characterized in that: The hexagonal sleeve (3) has multiple oil injection holes (35) along the positioning groove (33) on its outer wall.

8. The jack handle structure that is not easily detached according to claim 6, characterized in that: The end of the positioning block (54) away from the positioning plate (52) is arc-shaped.

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