Anti-falling hydraulic jack

Abstract

The utility model discloses an anti-drop hydraulic jack which comprises a rack and a hydraulic oil cylinder, a piston rod is arranged on the hydraulic oil cylinder, a sleeve is detachably installed on the piston rod of the hydraulic oil cylinder, a top seat is arranged at the top of the sleeve, threaded rods are installed on two side plates of the top seat in a threaded penetrating mode, and one end of each threaded rod penetrates through the top seat and then is connected with a clamping plate. Two rows of ejector rods are arranged on the surface of the clamping plate, grooves are formed in the ejector rods, springs are arranged in the grooves, protruding rods are arranged in the grooves in a clearance fit mode, and the ends, located in the grooves, of the protruding rods are fixedly connected with the springs. According to the lifting jack, the accuracy of the object supporting position of the lifting jack is improved, the contact between the lifting jack and an object is firmer, the object is effectively prevented from sliding or falling off in the lifting process, the working efficiency is improved, the operation risk caused by inaccurate positioning is reduced, and the safety and reliability of the operation process can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic jacks, in particular to an anti-falling hydraulic jack. Background Art

[0002] A separate jack is a jack with a separate power device and a separate supporting device. It is divided into manual and electric types. Both use hydraulics. The separate hydraulic jack is separated from the hydraulic pump and connected in the middle with a high-pressure hose. It consists of a cylinder body and a piston rod.

[0003] In existing split hydraulic jacks, the top of the piston rod is usually designed as a cylindrical design. In certain specific working scenarios, such as lifting objects in contact with smooth surfaces or inclined surfaces, the anti-slip performance of the cylindrical top is insufficient, and the objects are prone to slide or tilt during the lifting process, which not only affects work efficiency but also poses a safety hazard. Therefore, an anti-fall hydraulic jack is proposed to address the above situation. Utility Model Content

[0004] The utility model aims to solve the problem in the prior art that objects are prone to slide or tilt during lifting, which not only affects work efficiency but also poses a safety hazard, and proposes an anti-falling hydraulic jack.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The utility model relates to an anti-falling hydraulic jack, which comprises a frame and a hydraulic cylinder. The hydraulic cylinder is provided with a piston rod.

[0007] A sleeve is detachably mounted on the piston rod of the hydraulic cylinder, a top seat is arranged on the top of the sleeve, threaded rods are threadedly mounted on both side plates of the top seat, and one end of the threaded rod is connected to a clamping plate after passing through the top seat.

[0008] Two rows of push rods are arranged on the surface of the clamping plate. The push rods are provided with grooves. Springs are arranged in the grooves. Protruding rods are matched with clearances in the grooves. The ends of the protruding rods located in the grooves are fixedly connected with the springs.

[0009] Preferably, a pair of slide grooves are provided on the top of the top seat, and support rods are slidably fitted in the pair of slide grooves, and the top of the support rods is fixedly connected to the bottom of the clamping plate.

[0010] Preferably, screw holes are provided through both side plates of the top seat, and the screw holes cooperate with the threaded rods.

[0011] Preferably, the top surface of the top seat is provided with an anti-slip rubber pad.

[0012] Preferably, a piston rod of the hydraulic cylinder is provided with a top head, and an outer surface of the top head is provided with an external thread.

[0013] Preferably, a mounting groove is provided at the bottom of the sleeve, the mounting groove has an internal thread, and the mounting groove cooperates with the top thread.

[0014] Preferably, a hydraulic oil pump is provided on the frame, the hydraulic oil pump is fixedly connected to a high-pressure oil pipe, and one end of the high-pressure oil pipe away from the hydraulic oil pump is fixedly connected to the hydraulic oil cylinder.

[0015] The utility model has the following beneficial effects:

[0016] 1. The utility model can accurately contact and position with the surface of an object through the structural design of the sleeve, top seat, threaded rod, clamp and support rod, thereby improving the accuracy of the jack's supporting position for the object, making the contact between the jack and the object more firm, and effectively preventing the object from slipping or falling off during the lifting process, which not only improves work efficiency, but also reduces the operational risks caused by inaccurate positioning, and can ensure the safety and reliability of the operation process.

[0017] 2. The utility model adopts the structural design of the push rod, groove, spring and convex rod, and the deformable convex rod can be adaptively adjusted according to the surface shape of the object, so as to closely contact with the object with irregular surface, ensure the accuracy of positioning, avoid the problem of inaccurate positioning caused by the irregular surface of the object, and improve the use effect of the hydraulic jack. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a hydraulic jack;

[0019] Figure 2 It is a schematic diagram of the connection structure between the hydraulic cylinder and the casing;

[0020] Figure 3 The figure is a schematic diagram of the installation structure of the splint;

[0021] Figure 4 Schematic diagram of the installation structure of the convex rod.

[0022] In the figure: 1, frame; 101, hydraulic oil pump; 102, high-pressure oil pipe; 2, hydraulic cylinder; 201, head; 3, sleeve; 301, assembly groove; 4, top seat; 5, threaded rod; 6, clamping plate; 7, support rod; 8, push rod; 801, groove; 802, spring; 803, protruding rod. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Reference Figure 1-4, an anti-falling hydraulic jack, comprises a frame 1 and a hydraulic cylinder 2, wherein the hydraulic cylinder 2 is provided with a piston rod.

[0025] like Figure 1 and Figure 2 As shown, a hydraulic oil pump 101 is arranged on the frame 1 , and a high-pressure oil pipe 102 is fixedly connected to the hydraulic oil pump 101 , and one end of the high-pressure oil pipe 102 away from the hydraulic oil pump 101 is fixedly connected to the hydraulic cylinder 2 .

[0026] The piston rod of the hydraulic cylinder 2 is detachably provided with a sleeve 3. In order to realize the disassembly and assembly of the sleeve 3, Figure 1 , Figure 2 and Figure 3 As shown, a piston rod of the hydraulic cylinder 2 is provided with a plug 201, the outer surface of the plug 201 is provided with an external thread, and a mounting groove 301 is provided at the bottom of the sleeve 3, the mounting groove 301 has an internal thread, and the mounting groove 301 is threadedly matched with the plug 201.

[0027] A top seat 4 is provided on the top of the sleeve 3, and a non-slip rubber pad is provided on the top surface of the top seat 4. Threaded rods 5 are threadedly installed on both side plates of the top seat 4. In order to realize the assembly of the threaded rods 5, as shown in FIG. Figure 1 , Figure 2 and Figure 3 As shown, screw holes are formed through both side plates of the top seat 4 , and the screw holes cooperate with the threaded rods 5 .

[0028] One end of the threaded rod 5 passes through the top seat 4 and is connected to a clamping plate 6 .

[0029] In order to ensure that the clamping plate 6 moves horizontally to position and clamp the object, Figure 3 As shown, a pair of slide grooves are provided on the top of the top seat 4 , and support rods 7 are slidably fitted in the pair of slide grooves. The top of the support rod 7 is fixedly connected to the bottom of the clamping plate 6 .

[0030] When in use, first raise the top head 201 so that the object contacts the surface of the top seat 4, and then rotate the two threaded rods 5 in sequence. The rotation of the threaded rods 5 can move the clamping plates 6, and then the two clamping plates 6 can be accurately positioned against the surface of the object, thereby improving the accuracy of the jack's support position for the object, making the contact between the jack and the object more firm, and effectively preventing the object from slipping or falling off during the lifting process, which not only improves work efficiency, but also reduces operational risks caused by inaccurate positioning, and can ensure the safety and reliability of the operation process.

[0031] Two rows of push rods 8 are provided on the surface of the splint 6, and a groove 801 is provided on the push rod 8. A spring 802 is provided in the groove 801. A convex rod 803 is provided in the clearance of the groove 801. The end of the convex rod 803 located in the groove 801 is fixedly connected with the spring 802. When the threaded rod 5 rotates to move the splint 6, the convex rod 803 first contacts the surface of the object. As the splint 6 continues to move, the convex rod 803 slides in the groove 801. By squeezing the spring 802, the deformable convex rod 803 can be adaptively adjusted according to the surface shape of the object, so as to closely contact with the object with irregular surface, thereby ensuring the accuracy of positioning, avoiding the problem of inaccurate positioning caused by the irregular surface of the object, and improving the use effect of the hydraulic jack.

[0032] Furthermore, the plug 201 and the sleeve 3 are both made of high-strength steel structural materials.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An anti-falling hydraulic jack, comprising a frame (1) and a hydraulic cylinder (2), wherein the hydraulic cylinder (2) is provided with a piston rod, and characterized in that: A sleeve (3) is detachably mounted on the piston rod of the hydraulic cylinder (2); a top seat (4) is disposed on the top of the sleeve (3); threaded rods (5) are threadedly mounted on both side plates of the top seat (4); one end of the threaded rod (5) passes through the top seat (4) and is connected to a clamping plate (6); Two rows of push rods (8) are provided on the surface of the clamping plate (6), and the push rods (8) have grooves (801). A spring (802) is provided in the groove (801), and a convex rod (803) is loosely fitted in the groove (801). The end of the convex rod (803) located in the groove (801) is fixedly connected to the spring (802).

2. The anti-falling hydraulic jack according to claim 1, characterized in that: A pair of slide grooves are provided at the top of the top seat (4), and a support rod (7) is slidably fitted in each of the pair of slide grooves. The top of the support rod (7) is fixedly connected to the bottom of the clamping plate (6).

3. The anti-falling hydraulic jack according to claim 1, characterized in that: Screw holes are provided through both side plates of the top seat (4), and the screw holes cooperate with the threaded rods (5).

4. The anti-falling hydraulic jack according to claim 1, characterized in that: The top surface of the top seat (4) is provided with an anti-slip rubber pad.

5. The anti-falling hydraulic jack according to claim 1, characterized in that: A plunger (201) is provided on the piston rod of the hydraulic oil cylinder (2), and an outer surface of the plunger (201) is provided with an external thread.

6. The anti-falling hydraulic jack according to claim 1 or 5, characterized in that: The bottom of the sleeve (3) is provided with an assembly groove (301), the assembly groove (301) has an internal thread, and the assembly groove (301) is threadably matched with the top head (201).

7. The anti-falling hydraulic jack according to claim 1, characterized in that: The frame (1) is provided with a hydraulic oil pump (101), the hydraulic oil pump (101) is fixedly connected to a high-pressure oil pipe (102), and one end of the high-pressure oil pipe (102) away from the hydraulic oil pump (101) is fixedly connected to the hydraulic oil cylinder (2).

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