Jack opening and closing structure

Abstract

The utility model relates to the technical field of engineering equipment, and discloses a jack opening and closing structure which comprises a base, a supporting top block and a jack body, a hydraulic cylinder is fixedly installed at the position, close to the other side, of the top of the base, a connecting rod is movably installed at the top of the hydraulic cylinder, and a movable plate is jointly and movably installed on the side, opposite to the base, of the connecting rod. A rectangular groove is fixedly formed in the front side of the connecting rod, a connecting column is slidably connected to an inner cavity of the rectangular groove, a driving handle is fixedly installed on the front side of the connecting column, and when the position of the driving handle is adjusted, under the cooperative use of the adjusting assembly, when the pull rod moves upwards, the T-shaped inserting block fixed to the bottom of the pull rod can be far away from an inner cavity of the adjacent inserting groove; and then the distance between the position where the user holds the driving handle and the connecting rod can be adjusted by pulling the driving handle forwards, the user can drive the supporting top block to move upwards in a more labor-saving mode, the working intensity of workers is relieved, and the lifting efficiency of the supporting top block is improved.

Description

Technical Field

[0001] This utility model relates to the field of engineering equipment technology, specifically to a jack opening and closing structure. Background Technology

[0002] A jack is a small lifting device that uses a rigid lifting component as its working device to lift heavy objects within a short stroke through a top support or bottom claw. Jacks are mainly used in factories, mines, transportation and other departments for vehicle repair and other lifting and support work. They are lightweight, sturdy, flexible and reliable, and can be carried and operated by one person.

[0003] When controlling the opening and closing of the jack, the jack is started by moving the drive handle up and down. However, the length of the existing drive handle is fixed, which makes it difficult for some operators to drive the drive handle, thus reducing the efficiency of driving the jack to rise and increasing the workload of the operators.

[0004] Therefore, we propose a jack opening and closing structure to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a jack opening and closing structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a jack opening and closing structure, including a base, a support block, and a jack body. A hydraulic cylinder is fixedly installed on the top of the base near the other side. A connecting rod is movably installed on the top of the hydraulic cylinder. A movable plate is movably installed on the opposite side of the base of the connecting rod. A rectangular groove is fixedly installed on the front side of the connecting rod. A connecting column is slidably connected to the inner cavity of the rectangular groove. A drive handle is fixedly installed on the front side of the connecting column. A protective component is provided on the outer periphery of the drive handle. An adjustment component is provided between the connecting column and the rectangular groove. A valve is provided on the front side of the jack body.

[0007] The adjustment assembly includes an L-shaped plate fixedly installed at the top of the rectangular groove near the front side and a pull rod that moves through the top of the L-shaped plate. A handle is fixedly installed at the top of the pull rod, and a T-shaped insert is fixedly installed at the bottom of the pull rod, with the T-shaped insert moving through the top of the rectangular groove.

[0008] Preferably, a telescopic rod is fixedly installed on the top of the T-shaped insert near both sides, the top of the telescopic rod is fixedly connected to the bottom of the inner cavity of the L-shaped plate, and a spring is movably sleeved on the outer periphery of the telescopic rod, with the two ends of the spring fixedly connected to the T-shaped insert and the L-shaped plate respectively.

[0009] Preferably, the top of the connecting post is provided with a plurality of slots, and the bottom of the T-shaped plug is movably inserted into the inner cavity of the adjacent slots. Trapezoidal strips are fixedly installed on both sides of the connecting post, and trapezoidal grooves are provided on opposite sides of the inner cavity of the rectangular groove, and the trapezoidal strips are slidably connected in the inner cavities of the adjacent trapezoidal strips respectively.

[0010] Preferably, ball bearings are movably installed on opposite sides of the trapezoidal strip, and rolling grooves are formed on opposite sides of the inner cavity of the trapezoidal groove, with the ball bearings slidably connected in the inner cavities of adjacent rolling grooves.

[0011] Preferably, the protective component includes two protective pads located on the outer periphery of the drive handle and hook and loop serrated surfaces fixedly installed on the front and rear sides of the bottom protective pad. The protective pads are arranged vertically, and hook and loop serrated surfaces are fixedly installed on the top of the bottom protective pad near both sides, with the hook and loop serrated surfaces respectively adhering to the adjacent hook and loop serrated surfaces.

[0012] Preferably, guide rods are fixedly installed at the bottom of the top protective pad near the front and rear sides, and blind holes are opened at the top of the bottom protective pad near the front and rear sides, with the guide rods being movably inserted into the inner cavities of adjacent blind holes.

[0013] Preferably, the guide rods and the two protective pads are all made of rubber.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. When adjusting the position of the drive handle, with the cooperation of the adjustment component, when the pull rod moves upward, the T-shaped insert fixed at the bottom of the pull rod can be moved away from the inner cavity of the adjacent slot. Then, the drive handle can be pulled forward to adjust the distance between the position of the user holding the drive handle and the connecting rod. The user can drive the support block to move upward with less effort, reduce the workload of the staff, and improve the efficiency of the support block rising.

[0016] 2. By setting two protective pads, the user's hands can be protected. The guide rod is inserted into the inner cavity of the adjacent blind hole, and the Velcro nap and Velcro barbed surfaces facilitate the connection of the two protective pads and subsequent replacement. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the rectangular groove and connecting column of this utility model;

[0019] Figure 3 This is a cross-sectional three-dimensional structural diagram of the rectangular groove and connecting column of this utility model;

[0020] Figure 4 This is a top-section three-dimensional structural diagram of the rectangular groove and connecting column of this utility model;

[0021] Figure 5 This is an exploded view of the protective component of this utility model;

[0022] Figure 6 For the present utility model Figure 3 Enlarged view of point A in the middle.

[0023] In the diagram: 1. Base; 2. Support block; 3. Jack body; 4. Connecting rod; 5. Hydraulic cylinder; 6. Movable plate; 7. Adjustment assembly; 71. L-shaped plate; 72. Pull rod; 73. Handle; 74. T-shaped insert; 741. Telescopic rod; 742. Spring; 8. Protective assembly; 81. Protective pad; 811. Guide rod; 82. Velcro barbed surface; 83. Velcro napped surface; 9. Rectangular groove; 10. Connecting column; 101. Trapezoidal strip; 1011. Ball bearing; 102. Trapezoidal groove; 1021. Roller groove; 103. Slot; 20. Drive handle; 30. Valve. Detailed Implementation

[0024] 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.

[0025] Example 1

[0026] Please see Figure 1-6 A jack opening and closing structure includes a base 1, a support block 2, and a jack body 3. A hydraulic cylinder 5 is fixedly installed on the top of the base 1 near the other side. A connecting rod 4 is movably installed on the top of the hydraulic cylinder 5. A movable plate 6 is movably installed on the opposite side of the base 1 of the connecting rod 4. A rectangular groove 9 is fixedly installed on the front side of the connecting rod 4. A connecting column 10 is slidably connected to the inner cavity of the rectangular groove 9. A drive handle 20 is fixedly installed on the front side of the connecting column 10. A protective component 8 is provided on the outer periphery of the drive handle 20. An adjustment component 7 is provided between the connecting column 10 and the rectangular groove 9. A valve 30 is provided on the front side of the jack body 3.

[0027] The adjustment assembly 7 includes an L-shaped plate 71 fixedly installed at the top of the rectangular groove 9 near the front side and a pull rod 72 that moves through the top of the L-shaped plate 71. A handle 73 is fixedly installed at the top of the pull rod 72, and a T-shaped insert 74 is fixedly installed at the bottom of the pull rod 72, and the T-shaped insert 74 moves through the top of the rectangular groove 9.

[0028] Specifically, when adjusting the position of the drive handle 20, with the cooperation of the adjustment component 7, when the pull rod 72 moves upward, the T-shaped insert 74 fixed at the bottom of the pull rod 72 can be moved away from the inner cavity of the adjacent slot 103. Then, the drive handle 20 can be pulled forward to adjust the distance between the position of the user holding the drive handle 20 and the connecting rod 4. The user can drive the support top block 2 upward with less effort, reducing the workload of the staff and improving the efficiency of the support top block 2 rising.

[0029] Telescopic rods 741 are fixedly installed on the top of the T-shaped insert 74 near both sides. The top of the telescopic rods 741 is fixedly connected to the bottom of the inner cavity of the L-shaped plate 71. Springs 742 are movably sleeved on the outer periphery of the telescopic rods 741, and the two ends of the springs 742 are fixedly connected to the T-shaped insert 74 and the L-shaped plate 71 respectively.

[0030] Specifically, by setting the telescopic rod 741 and the spring 742, the T-shaped plug 74 can be stably inserted into the inner cavity of the slot 103.

[0031] The top of the connecting post 10 is provided with several slots 103, and the bottom of the T-shaped plug 74 is movably inserted into the inner cavity of the adjacent slot 103. Trapezoidal strips 101 are fixedly installed on both sides of the connecting post 10. Trapezoidal grooves 102 are provided on the opposite side of the inner cavity of the rectangular groove 9, and the trapezoidal strips 101 are slidably connected in the inner cavity of the adjacent trapezoidal strips 101.

[0032] Specifically, by setting the trapezoidal strip 101 to slide in the inner cavity of the trapezoidal groove 102, the sliding connection of the connecting column 10 in the inner cavity of the rectangular groove 9 can be limited.

[0033] On opposite sides of the trapezoidal strip 101, ball bearings 1011 are movably installed. On opposite sides of the inner cavity of the trapezoidal groove 102, rolling grooves 1021 are provided, and the ball bearings 1011 are slidably connected in the inner cavities of adjacent rolling grooves 1021.

[0034] Specifically, by providing a number of balls 1011 on the trapezoidal strip 101 to slide in the inner cavity of the groove 1021, the resistance of the trapezoidal strip 101 sliding in the inner cavity of the trapezoidal groove 102 can be reduced.

[0035] Example 2

[0036] This embodiment is an improvement upon embodiment 1. For details, please refer to [link / reference]. Figure 2 and Figure 5The protective component 8 includes two protective pads 81 located on the outer periphery of the drive handle 20 and hook and loop spiky surfaces 82 fixedly installed on the front and rear sides of the bottom protective pad 81. The protective pads 81 are arranged vertically, and hook and loop spiky surfaces 83 are fixedly installed on the top of the bottom protective pad 81 near both sides, and the hook and loop spiky surfaces 82 are respectively attached to the adjacent hook and loop spiky surfaces 83.

[0037] Specifically, the two protective pads 81 can protect the user's hands, and the Velcro loops 83 and Velcro barbs 82 facilitate the connection of the two protective pads 81 and subsequent replacement.

[0038] Guide rods 811 are fixedly installed at the bottom of the top protective pad 81 near the front and rear sides. Blind holes are opened at the top of the bottom protective pad 81 near the front and rear sides. The guide rods 811 are movably inserted into the inner cavity of the adjacent blind holes. The guide rods 811 and the two protective pads 81 are all made of rubber.

[0039] Specifically, by setting guide rods 811 to be inserted into the inner cavity of adjacent blind holes, the stability of the connection between protective pads 81 can be improved.

[0040] Working Principle: When using this invention, when moving the jack body 3 upwards, the user can pull the handle 73 upwards, which, connected to the pull rod 72, moves the T-shaped insert 74 fixed at the bottom of the pull rod 72 upwards, thus moving it away from the inner cavity of the adjacent slot 103. Then, pulling the drive handle 20 forward adjusts the distance between the user's grip on the drive handle 20 and the connecting rod 4. This allows the user to move the support block 2 upwards with less effort, reducing the workload of the operator and improving efficiency. The efficiency of supporting the rise of the top block 2 is such that, after being adjusted to a suitable position, the operator can release the handle 73. Under the limit of the telescopic rod 741 and the spring 742, the T-shaped plug 74 can be stably inserted into the inner cavity of the slot 103, which can limit the adjusted position. By setting two protective pads 81, the user's hands can be protected. Furthermore, by setting the guide rod 811 to be inserted into the inner cavity of the adjacent blind hole, and by setting the Velcro nap 83 and the Velcro barbed surface 82, it is convenient to connect the two protective pads 81 and replace them later.

[0041] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0042] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A jack opening and closing structure comprising a base (1), a support top block (2) and a jack body (3), characterized in that: The top of the base (1) is fixedly installed with a hydraulic cylinder (5) near the other side, the top of the hydraulic cylinder (5) is movably installed with a connecting rod (4), the base (1) opposite side of the connecting rod (4) is movably installed with an activity board (6), the front side of the connecting rod (4) is fixedly installed with a rectangular groove (9), the inner cavity of the rectangular groove (9) is slidably connected with a connecting column (10), the front side of the connecting column (10) is fixedly installed with a driving handle (20), the outer periphery of the driving handle (20) is provided with a protection assembly (8), the connecting column (10) and the rectangular groove (9) are provided with an adjusting assembly (7), the front side of the jack body (3) is provided with a valve (30); The adjusting assembly (7) comprises an L-shaped plate (71) fixedly installed on the top of the rectangular groove (9) near the front side and a pull rod (72) movably penetrating through the top of the L-shaped plate (71), the top end of the pull rod (72) is fixedly installed with a handle (73), the bottom end of the pull rod (72) is fixedly installed with a T-shaped plug (74), and the T-shaped plug (74) movably penetrates through the top of the rectangular groove (9).

2. The jack opening and closing structure according to claim 1, characterized in that: The top of the T-shaped plug (74) is fixedly installed with a telescopic rod (741) near the two sides, the top end of the telescopic rod (741) is fixedly connected with the inner cavity bottom of the L-shaped plate (71), the outer periphery of the telescopic rod (741) is movably sleeved with a spring (742), and the two ends of the spring (742) are fixedly connected with the T-shaped plug (74) and the L-shaped plate (71) respectively.

3. The jack opening and closing structure according to claim 1, characterized in that: The top of the connecting column (10) is provided with a plurality of slot (103), and the bottom of the T-shaped plug (74) is movably inserted into the inner cavity of the adjacent slot (103), the two sides of the connecting column (10) are fixedly installed with a trapezoidal strip (101), the inner cavity opposite sides of the rectangular groove (9) are provided with a trapezoidal groove (102), and the trapezoidal strip (101) is slidably connected in the inner cavity of the adjacent trapezoidal strip (101) respectively.

4. The jack opening and closing structure according to claim 3, characterized in that: The opposite sides of the trapezoidal strip (101) are movably installed with a ball (1011), the inner cavity opposite sides of the trapezoidal groove (102) are provided with a rolling groove (1021), and the balls (1011) are slidably connected in the inner cavities of the adjacent rolling grooves (1021) respectively.

5. The jack opening and closing structure according to claim 1, characterized in that: The protection assembly (8) comprises two protection pads (81) on the outer periphery of the driving handle (20) and a magic tape thorn surface (82) fixedly installed on the front and back sides of the bottom protection pad (81), the protection pads (81) are arranged upward and downward, the top of the bottom protection pad (81) is fixedly installed with a magic tape hairy surface (83) near the two sides, and the magic tape thorn surface (82) is arranged to be mutually attached with the adjacent magic tape hairy surface (83) respectively.

6. The jack opening and closing structure according to claim 5, characterized in that: The bottom of the top protection pad (81) is fixedly installed with a guide rod (811) near the front and back sides, the top of the bottom protection pad (81) is provided with a blind hole near the front and back sides, and the guide rod (811) is movably inserted into the inner cavities of the adjacent blind holes respectively.

7. The jack opening and closing structure according to claim 6, characterized in that: The guide rods (811) and the protection pads (81) are composed of rubber material.

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