Limiting mechanism of jack rocker

Abstract

The limiting mechanism comprises a connector installed on a jack screw, a rocker and a connecting sleeve, the rocker and the connecting sleeve are inserted into the connector, a connecting hole is formed in the center of the front face of the connector, one end of the rocker is inserted into the connecting hole, an installation groove is formed in the center of the top of the connector, and the rocker is inserted into the installation groove. The connecting sleeve is inserted into the mounting groove, a sliding groove is formed in the center of the top of the connecting sleeve, a positioning insertion block is slidably connected into the connecting sleeve, a sliding rod is fixedly connected to the center of the top of the positioning insertion block, and the top of the sliding rod penetrates through the top of the sliding groove and is fixedly connected with a handle; a limiting hole is formed in the center of the top of the rocker, and the positioning insertion block is movably inserted into the limiting hole; the rocker solves the problem that a traditional rocker is prone to falling off in the operation process and needs to be installed again, and therefore work efficiency and safety in the using process are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of jack accessories, in particular to a limiting mechanism of a jack rocker. Background Art

[0002] Rocker jacks are widely used in the automotive field. They are one of the commonly used tools in car maintenance, especially in tire replacement, brake maintenance, chassis inspection and other operations. By using a rocker jack, maintenance personnel can easily lift the car to a suitable height, making it more convenient to perform various maintenance operations.

[0003] At present, the rocker arm of the jack is usually connected to the screw rod of the jack by plugging, and it does not have a fixing function after plugging. When the staff shakes the rocker arm, it is easy to cause the rocker arm to slide and fall off, resulting in poor use effect. After the rocker arm falls off, it needs to be reinserted, which delays work efficiency and poses a safety hazard. Therefore, it is necessary to design a limiting mechanism for the rocker arm of the jack to solve the above technical problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a limiting mechanism for a jack rocker, which is used to solve the problem that the traditional rocker is easy to fall off during use, which delays work efficiency and poses a safety hazard.

[0005] The utility model provides a limiting mechanism for a jack rocker arm, comprising a connecting head installed on a jack screw rod, and a rocker arm and a connecting sleeve plugged into the connecting head, a connecting hole is provided in the center of the front face of the connecting head, one end of the rocker arm is plugged into the inside of the connecting hole, a mounting groove is provided in the center of the top of the connecting head, the connecting sleeve is plugged into the inside of the mounting groove, a sliding groove is provided in the center of the top of the connecting sleeve, a positioning block is slidably connected to the inside of the connecting sleeve, a sliding rod is fixedly connected to the center of the top of the positioning block, the top of the sliding rod passes through the top of the sliding groove and is fixedly connected to a handle, a limiting hole is provided in the center of the top of the rocker arm, and the positioning block is movably plugged into the inside of the limiting hole.

[0006] As a further improvement of the present invention, a nut is fixedly connected to the interior of the installation groove, an outer wall of the connecting sleeve is integrally formed with an external thread, and the connecting sleeve is threadedly connected to the interior of the nut.

[0007] As a further improvement of the utility model, a return spring is installed in the center of the top of the positioning plug, the top of the return spring is fixedly connected to the top of the inner wall of the connecting sleeve, and the sliding rod passes through the middle of the return spring.

[0008] As a further improvement of the utility model, first limit grooves are provided on both sides of the connection hole, and a first limit block is fixedly connected to one end of the rocker arm at a position corresponding to the first limit groove, and the first limit block is movably inserted into the interior of the first limit groove.

[0009] As a further improvement of the utility model, a positioning ring is fixedly connected to the surface of one end of the rocker close to the limiting hole, and the diameter of the positioning ring is larger than the diameter of the connecting hole.

[0010] As a further improvement of the utility model, second limit grooves are provided on both sides of the inner wall of the connecting sleeve and near the bottom, and a second limit block is fixedly connected to the surface of the positioning block at the position corresponding to the second limit groove, and the second limit block is slidably connected to the inside of the second limit groove.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model uses a limiting hole opened on the rocker to cooperate with a positioning plug, a slide rod and a return spring arranged inside the connecting sleeve, so that after the rocker is inserted into the connecting head, the plug can be tightly inserted into the limiting hole on the top of the rocker under the action of the elastic force of the return spring, so as to limit and fix the position of the rocker, prevent the rocker from falling off from the connecting head during operation, improve the stability of the rocker during operation, solve the problem that the traditional rocker is easy to fall off during operation and needs to be reinstalled, and thus improve work efficiency and safety during use.

[0013] 2. The utility model provides a nut in the connecting head, which cooperates with the external thread provided on the connecting sleeve, so that the connecting sleeve and the connecting head can be detachably connected, which is convenient for storage and reduces the overall occupied space. The first limiting grooves on both sides of the connecting hole and the first limiting blocks on the rocker are cooperated with the positioning ring provided on the rocker, so that when the first limiting block is inserted into the first limiting groove and the positioning ring is in contact with the surface of the connecting head, the center of the positioning block is exactly in the same plane as the center of the limiting hole, so that the positioning block can be directly inserted into the limiting hole, which is convenient for the staff to install and disassemble the rocker. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the connection relationship between the rocker and the connector of the utility model;

[0017] Figure 3 This is a schematic diagram of the front structure of the connector of the utility model;

[0018] Figure 4 This is a front sectional structural diagram of the connecting sleeve of the utility model;

[0019] Figure 5 This is a schematic diagram of the connection relationship between the connecting sleeve and the positioning plug block of the utility model;

[0020] Figure 6 This is a schematic diagram of the three-dimensional structure of the rocker of the utility model;

[0021] Figure 7 It is a schematic diagram of the side sectional structure of the connector of the utility model.

[0022] In the figure: 1. Connector; 2. Connecting hole; 3. Nut; 4. First limiting groove; 5. Connecting sleeve; 6. Slide groove; 7. External thread; 8. Second limiting groove; 9. Positioning plug; 10. Slide rod; 11. Handle; 12. Reset spring; 13. Second limiting block; 14. Rocker; 15. Limiting hole; 16. First limiting block; 17. Positioning ring. DETAILED DESCRIPTION

[0023] The following will disclose multiple embodiments of the present invention with diagrams. For the sake of clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit the present invention. In other words, in some embodiments of the present invention, these physical details are not necessary. In addition,

[0024] To simplify the diagram, some conventional structures and components are shown in simple schematic form in the drawings.

[0025] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0026] In the description of this technology, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this technology can be understood according to specific circumstances.

[0027] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0028] See also Figure 1-7 The utility model provides a limiting mechanism of a jack rocker, comprising a connector 1 installed on the jack screw, and a rocker 14 and a connecting sleeve 5 inserted into the connector 1. A connecting hole 2 is provided in the center of the front of the connector 1, one end of the rocker 14 is inserted into the inside of the connecting hole 2, a mounting groove is provided in the center of the top of the connector 1, the connecting sleeve 5 is inserted into the inside of the mounting groove, a slide groove 6 is provided in the center of the top of the connecting sleeve 5, a positioning block 9 is slidably connected to the inside of the connecting sleeve 5, a sliding rod 10 is fixedly connected to the center of the top of the positioning block 9, the top of the sliding rod 10 passes through the top of the slide groove 6 and is fixedly connected to a handle 11, a limiting hole 15 is provided in the center of the top of the rocker 14, and the positioning block 9 is movably inserted into the inside of the limiting hole 15.

[0029] In this embodiment, a nut 3 is fixedly connected to the interior of the installation groove, an external thread 7 is integrally formed on the outer wall of the connecting sleeve 5 , and the connecting sleeve 5 is threadedly connected to the interior of the nut 3 .

[0030] Through the above technical solution, the connection between the connecting sleeve 5 and the connecting head 1 can be detachably connected, which is convenient for storage and reduces the overall occupied space.

[0031] In this embodiment, a return spring 12 is installed at the center of the top of the positioning plug 9 , the top of the return spring 12 is fixedly connected to the top of the inner wall of the connecting sleeve 5 , and the slide rod 10 passes through the middle of the return spring 12 .

[0032] It should be noted that if Figure 5 As shown, when the reset spring 12 is in the initial state, the bottom of the positioning block 9 passes through the lower end of the connecting sleeve 5. At this time, the positioning block 9 can be stably inserted into the interior of the limiting hole 15 under the action of the elastic force of the reset spring 12, thereby limiting the position of the rocker 14 and preventing the rocker 14 from falling off.

[0033] In this embodiment, a first limiting groove 4 is opened on both sides of the connecting hole 2, a first limiting block 16 is fixedly connected to one end of the rocker 14 and at a position corresponding to the first limiting groove 4, the first limiting block 16 is movably inserted into the inside of the first limiting groove 4, and a positioning ring 17 is fixedly connected to the surface of one end of the rocker 14 close to the limiting hole 15, and the diameter of the positioning ring 17 is larger than the diameter of the connecting hole 2.

[0034] See also Figure 2By setting the first limiting groove 4, the first limiting block 16 and the positioning ring 17, when the first limiting block 16 is aligned with the inside of the first limiting groove 4 and inserted, and when the surface of the positioning ring 17 contacts the surface of the connector 1, the center of the limiting hole 15 is exactly in the same plane as the center of the positioning plug 9.

[0035] When the device is in use, the staff only needs to lift the positioning block 9 upwards through the handle 11, and then align the first limit block 16 with the first limit groove 4 to insert the rocker 14 into the connecting hole 2 until the surface of the positioning ring 17 fits with the surface of the connector 1. At this time, release the handle 11. Under the action of the rebound force of the reset spring 12, the positioning block 9 will be stably inserted into the limit hole 15 at the top of the rocker 14, and the installation and fixation of the rocker 14 can be completed, preventing the rocker 14 from falling off during use, and the assembly is very convenient.

[0036] In some other embodiments, a second limiting groove 8 is provided on both sides of the inner wall of the connecting sleeve 5 and near the bottom, and a second limiting block 13 is fixedly connected to the surface of the positioning plug 9 at a position corresponding to the second limiting groove 8, and the second limiting block 13 is slidably connected to the inside of the second limiting groove 8.

[0037] Through the above technical solution, the movement trajectory of the positioning block 9 is limited, so that the positioning block 9 can only move in the vertical direction, preventing the return spring 12 from rotating.

[0038] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A limiting mechanism for a jack rocker, comprising a connector (1) mounted on a jack screw, and a rocker (14) and a connecting sleeve (5) plugged into the connector (1), characterized in that: A connection hole (2) is provided at the center of the front face of the connector (1), one end of the rocker (14) is inserted into the interior of the connection hole (2), a mounting groove is provided at the center of the top of the connector (1), and the connection sleeve (5) is inserted into the interior of the mounting groove; A slide groove (6) is provided at the center of the top of the connecting sleeve (5), a positioning plug block (9) is slidably connected inside the connecting sleeve (5), a slide rod (10) is fixedly connected at the center of the top of the positioning plug block (9), and the top of the slide rod (10) passes through the top of the slide groove (6) and is fixedly connected to a handle (11); A limiting hole (15) is provided at the center of the top of the rocker (14), and the positioning plug block (9) is movably plugged into the inside of the limiting hole (15).

2. The limiting mechanism of the jack rocker according to claim 1, characterized in that: A nut (3) is fixedly connected to the interior of the installation groove, an external thread (7) is integrally formed on the outer wall of the connecting sleeve (5), and the connecting sleeve (5) is threadedly connected to the interior of the nut (3).

3. The limiting mechanism of the jack rocker according to claim 1, characterized in that: A return spring (12) is installed at the center of the top of the positioning plug (9), the top of the return spring (12) is fixedly connected to the top of the inner wall of the connecting sleeve (5), and the sliding rod (10) passes through the middle of the return spring (12).

4. The limiting mechanism of the jack rocker according to claim 1, characterized in that: First limiting grooves (4) are provided on both sides of the connection hole (2); a first limiting block (16) is fixedly connected to one end of the rocker (14) at a position corresponding to the first limiting groove (4); and the first limiting block (16) is movably inserted into the interior of the first limiting groove (4).

5. The limiting mechanism of the jack rocker according to claim 1, characterized in that: A positioning ring (17) is fixedly connected to one end surface of the rocker (14) close to the limiting hole (15), and the diameter of the positioning ring (17) is larger than the diameter of the connecting hole (2).

6. The limiting mechanism of the jack rocker according to claim 1, characterized in that: Second limiting grooves (8) are provided on both sides of the inner wall of the connecting sleeve (5) and at positions close to the bottom. A second limiting block (13) is fixedly connected to the surface of the positioning plug (9) at a position corresponding to the second limiting groove (8). The second limiting block (13) is slidably connected to the inside of the second limiting groove (8).

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