CN219363113U

CN219363113U - Mechanical self-locking hydraulic jack

Info

Publication number: CN219363113U
Application number: CN202320603247.7U
Authority: CN
Inventors: 吕小铃; 吕炜; 吴昊轩
Original assignee: Nantong Amarton Hydraulic Machinery Manufacturing Co ltd
Current assignee: Nantong Amarton Hydraulic Machinery Manufacturing Co ltd
Priority date: 2023-03-24
Filing date: 2023-03-24
Publication date: 2023-07-18
Anticipated expiration: 2033-03-24

Abstract

The utility model discloses a mechanical self-locking hydraulic jack which comprises a cylinder body, wherein the bottom end of the cylinder body is fixedly connected with a base, the top end of the base, which is close to the cylinder body, is movably connected with a pressurizing assembly, the side wall, which is close to the pressurizing assembly, of the cylinder body is movably connected with a pressure relief assembly, the top end of the cylinder body is inserted with a piston ejector rod, and the position, which is close to the top end of the piston ejector rod, of the cylinder body is in threaded connection with a locking nut. According to the utility model, the first fixing block, the first supporting rod, the second supporting rod and the plug-in assembly are arranged, the limiting groove is formed in the bottom end of the fixing block to limit the excessive rotation of the supporting rod, the sliding groove is formed in the first supporting rod to facilitate the sliding of the second supporting rod in the sliding groove, the plug-in assembly comprises the plug-in block and the plug-in rod, the plug-in block is used for limiting the displacement of the plug-in rod and penetrating through the sliding groove, the stability of the plug-in rod in the hole groove is improved through the spring wound on the outer surface of the plug-in rod, and the stability of the support of the mechanical self-locking hydraulic jack can be improved through the three groups of supporting pieces.

Description

Mechanical self-locking hydraulic jack

Technical Field

The utility model relates to the technical field of hydraulic machinery, in particular to a mechanical self-locking hydraulic jack.

Background

The hydraulic jack is also called as oil jack, which is a jack using plunger or hydraulic cylinder as rigid jack. Simple lifting devices typically have only lifting mechanisms for lifting weights. Simple structure, light weight, portability and convenient movement. The common simple lifting equipment is provided with a hydraulic jack, a pulley, a hoist and the like.

The mechanical self-locking hydraulic jack comprises a cylinder body, a piston ejector rod, a wrench, a lock nut and other parts, and when the piston ejector rod is lifted out from the inside of the cylinder body, the piston ejector rod can be fixed by rotating the lock nut to prevent a hydraulic system of the piston ejector rod from loosening due to faults.

When the mechanical self-locking hydraulic jack supports a heavy object, the chassis of the jack is smaller, the cylinder body is higher, and the gravity center of the jack piston ejector rod is unstable when the heavy object is supported, so that the mechanical self-locking hydraulic jack is inclined during supporting, and an operator or a supporting object is damaged.

Disclosure of Invention

The utility model aims to provide a mechanical self-locking hydraulic jack, which solves the problems that in the prior art, when the mechanical self-locking hydraulic jack is used for supporting a heavy object, a chassis of the jack is smaller, a cylinder body is higher, and the gravity center of a jack piston ejector rod is unstable when the heavy object is supported, so that the mechanical self-locking hydraulic jack is inclined during supporting, and an operator or a supporting object is damaged.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a mechanical self-locking hydraulic jack, includes the cylinder body, the bottom fixedly connected with base of cylinder body, the top swing joint that the base is close to the cylinder body has the pressurization subassembly, the cylinder body is close to the swing joint on the lateral wall of pressurization subassembly and has the pressure release subassembly, the top grafting of cylinder body has the piston ejector pin, the cylinder body is close to the top position department spiro union of piston ejector pin has lock nut, even fixedly connected with three fixed block one on the lateral wall of the same horizontal position of cylinder body, three the bottom of fixed block one is all rotated and is connected with bracing piece one, and three the bottom of bracing piece one is all pegged graft and is had bracing piece two.

Preferably, the side wall of the cylinder body, which is close to the second support rods, is fixedly connected with a second fixing block, and the side wall of the third fixing block, which is close to the second support rods, is fixedly connected with a clamping ring.

By adopting the technical scheme, the clamping and fixing of the first support rod and the second support rod are realized.

Preferably, the piston ejector rod is inserted into the lock nut, and the piston ejector rod can be fixed by rotating the lock nut.

By adopting the technical scheme, the locking nut can fix the piston ejector rod.

Preferably, the bottom end positions of the first fixing blocks are provided with limiting grooves, limiting rods are fixedly connected to the inside of the limiting grooves, and the first supporting rods are rotatably connected with the limiting rods in the limiting grooves.

By adopting the technical scheme, the support rod can rotate around the limit rod conveniently.

Preferably, the surface of three bracing piece one all is provided with grafting subassembly, grafting subassembly all is including fixed connection's grafting piece on bracing piece one side wall, the spout has all been seted up to the inside of bracing piece one, the inside at the spout is all pegged graft to bracing piece two.

Through adopting above-mentioned technical scheme, can make grafting pole two slide in the inside of spout, conveniently adjust supporting height.

Preferably, the bottom ends of the support rods II are fixedly connected with anti-skid blocks, and a plurality of holes are formed in the side walls, close to the plug-in blocks, of the support rods II.

By adopting the technical scheme, the stability of the support rod II support is improved.

Preferably, the inside of three the grafting piece all is pegged graft and is had the spliced pole, the one end that the spout was kept away from to the spliced pole is all fixedly connected with end cap, the spliced pole is located the inside surface of grafting piece and all twines the waist and have the spring, and the end of spring all decides on fixing on the inboard of grafting piece, the equal fixed connection of the other end of spring is at the tip of spliced pole.

By adopting the technical scheme, the convenience and stability of supporting the supporting rod are improved.

Compared with the prior art, the utility model has the beneficial effects that:

the first fixing block, the first supporting rod, the second supporting rod and the plug-in assembly are arranged, the limiting groove is formed in the bottom end of the fixing block to limit the excessive rotation of the supporting rod, the sliding groove is formed in the first supporting rod to facilitate the sliding of the second supporting rod in the sliding groove, the plug-in assembly comprises the plug-in block and the plug-in rod, the plug-in block is used for limiting the displacement of the plug-in rod and penetrating through the sliding groove, the stability of the plug-in rod in the hole groove is improved through the spring wound on the outer surface of the plug-in rod, and the stability of the support of the mechanical self-locking hydraulic jack can be improved through three groups of supporting pieces;

through being provided with the antiskid ribbed tile, the equal fixedly connected with antiskid ribbed tile in bottom of three bracing piece two, the antiskid ribbed tile is the rubber material, and the bottom has the notch to increase frictional resistance, improves the stability when bracing piece two support.

Through being provided with fixed block two and snap ring, snap ring fixed connection is on the lateral wall of fixed block two, and the snap ring is rubber material, has good elasticity, has seted up the notch on the snap ring and has conveniently received the inside of restraint at the snap ring with bracing piece two, avoids bracing piece two to rock at will when not using.

Drawings

FIG. 1 is a schematic front perspective view of the present utility model;

FIG. 2 is a schematic top view of the present utility model;

FIG. 3 is an enlarged schematic view of the structure of FIG. 1A according to the present utility model;

FIG. 4 is a schematic cross-sectional view of a mounting block of the present utility model;

fig. 5 is a schematic cross-sectional view of a plug assembly according to the present utility model.

In the figure: 1. a cylinder; 2. a base; 3. a pressurizing assembly; 4. a pressure relief assembly; 5. a piston ejector rod; 6. a lock nut; 7. a first fixed block; 8. a first support rod; 9. a second support rod; 10. a second fixed block; 11. a clasp; 12. an anti-skid block; 13. a limit groove; 14. a limit rod; 15. a plug assembly; 1501. a plug block; 1502. inserting a connecting rod; 1503. an end cap; 1504. a spring; 16. a chute; 17. and a hole groove.

Detailed Description

The present utility model will be further described in detail with reference to the following examples and drawings for the purpose of enhancing the understanding of the present utility model, which examples are provided for the purpose of illustrating the present utility model only and are not to be construed as limiting the scope of the present utility model.

Referring to fig. 1-5, an embodiment of the present utility model is provided: the utility model provides a mechanical auto-lock hydraulic jack, including cylinder body 1, the bottom fixedly connected with base 2 of cylinder body 1, the top swing joint that base 2 is close to cylinder body 1 has pressurizing assembly 3, can make cylinder body 1 inside step up through pressurizing assembly 3, swing joint has pressure release subassembly 4 on the lateral wall that cylinder body 1 is close to pressurizing assembly 3, piston ejector pin 5 has been pegged graft on the top of cylinder body 1, can rise piston ejector pin 5 through the inside hydraulic pressure of cylinder body 1 and come the jack-up heavy object, cylinder body 1 is close to top position department spiro union that piston ejector pin 5 has lock nut 6, piston ejector pin 5 pegging graft in the inside of lock nut 6, rotate lock nut 6 can fix piston ejector pin 5, avoid hydraulic system trouble to lead to piston ejector pin 5 not hard up, unable support heavy object, lock nut 6 is prior art, no longer described here, even fixedly connected with two fixed blocks 7 on the lateral wall of cylinder body 1 same horizontal position, the equal rotation of bottom of three fixed block one 7 has bracing piece one 8, the bottom of three bracing piece one 8 has two 9, all fixedly connected with two fixed blocks 10 on the lateral wall that cylinder body 1 is close to three bracing piece two 9, two bracing piece 10 on the lateral wall that are close to two bracing piece 9, two side wall that two bracing piece 9 has snap ring 11, the snap ring 11 has convenient snap ring material.

The spacing groove 13 has all been seted up to the bottom position department of three fixed block one 7, the bracing piece one 8 of being convenient for rotates, prevent simultaneously that bracing piece one 8 from rotating the transition and coming spacing, the inside of spacing groove 13 is equal fixedly connected with gag lever post 14, bracing piece one 8 rotates with gag lever post 14 to be connected in the inside of spacing groove 13, the surface of three bracing piece one 8 all is provided with grafting subassembly 15, be used for grafting fixed bracing piece two 9, grafting subassembly 15 all is including fixed connection's grafting piece 1501 on bracing piece one 8 lateral wall, spout 16 has all been seted up to the inside of bracing piece one 8, bracing piece two 9 all pegged graft in spout 16's inside, the equal fixedly connected with non slipping block 12 of bottom of three bracing piece two 9, stability when the non slipping block 12 coefficient is higher body improvement three bracing piece two 9 supports is guaranteed to the non slipping block 12 is rubber material to the bottom, five foraminiferous grooves 17 are all seted up on the lateral wall that bracing piece two 9 are close to grafting piece 1501, five foraminiferous grooves 17 are evenly laid on the lateral wall of bracing piece two 9, grafting piece 1501 all has grafting pole 1502 to peg graft in inside of three grafting piece 1501, the equal spacing block 1502 is located the inside of the end cap spring bar 1502 that the equal has the fixed at the end of the end cap 1501, the equal displacement of the equal winding spring bar 1502 that is located the inside of the end of the equal fixing spring bar of the end cap 1501 of the spring bar 1502 on the end of the end cap setting of the end of the equal fixing of the spring bar 1501, the equal winding the equal in the inside of the end cap setting of the spring bar 1502.

Working principle: when the mechanical self-locking hydraulic jack is used, an operator firstly rotates the three support rods I8 to sequentially pull out the three support rods II 9 from the inside of the clamping ring 11, then slides the three support rods II 9, so that the inserting rod 1502 is inserted into the hole groove 17, at the moment, the spring 1504 rebounds to improve the stability of the inserting rod 1502 inserted into the hole groove 17, the piston ejector rod 5 can be lifted upwards to support a heavy object by rotating the pressurizing assembly 3, the piston ejector rod 5 can be fixed at the top end of the cylinder body 1 by screwing the locking nut 6, and the situation that the piston ejector rod 5 is loose and cannot support the heavy object due to the failure of a hydraulic system is avoided.

Secondly, through all fixedly connected with non slipping spur 12 in the bottom of three bracing piece two 9, non slipping spur 12 is the rubber material, and there is the notch in the bottom can increase the stability when the higher body of non slipping spur 12 coefficient of friction improves three bracing piece two 9 and supports.

Finally, when the mechanical self-locking hydraulic jack is used, the pressure relief assembly 4 is opened to relieve pressure, the piston ejector rod 5 is contracted into the cylinder body 1, then the spring 1504 is compressed by pulling the end cap 1503, the limit of the second support rod 9 is relieved in the inserting rod 1502 through the hole groove 17, the second support rods 9 are sequentially slid to the inner parts of the three sliding grooves 16, the second support rods 9 are clamped into the corresponding clamping rings 11, the clamping rings 11 are made of rubber, good elasticity is achieved, and the second support rods 9 are conveniently clamped into the clamping rings 11.

It should be noted that, in the drawings or the text of the specification, implementations not shown or described are all forms known to those of ordinary skill in the art, and not described in detail. Furthermore, the above definitions of the elements and methods are not limited to the specific structures, shapes or modes mentioned in the embodiments.

It should also be noted that examples of parameters that include particular values may be provided herein, but that these parameters need not be exactly equal to the corresponding values, but may approximate the corresponding values within acceptable error margins or design constraints. Directional terms such as "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc. mentioned in the embodiments are merely directions referring to the drawings, and are not intended to limit the scope of the present application.

While the foregoing description illustrates and describes the preferred embodiments of the present utility model, as noted above, it is to be understood that the utility model is not limited to the forms disclosed herein but is not to be construed as excluding other embodiments, and that various other combinations, modifications and environments are possible and may be made within the scope of the inventive concepts described herein, either by way of the foregoing teachings or by those of skill or knowledge of the relevant art. And that modifications and variations which do not depart from the spirit and scope of the utility model are intended to be within the scope of the appended claims.

Claims

1. The utility model provides a mechanical auto-lock hydraulic jack, includes cylinder body (1), its characterized in that: the novel hydraulic cylinder is characterized in that a base (2) is fixedly connected to the bottom end of the cylinder body (1), the base (2) is close to a pressurizing assembly (3) which is movably connected to the top end of the cylinder body (1), a pressure release assembly (4) is movably connected to the side wall of the cylinder body (1) close to the pressurizing assembly (3), a piston ejector rod (5) is inserted into the top end of the cylinder body (1), a locking nut (6) is screwed to the top end position of the cylinder body (1) close to the piston ejector rod (5), three fixing blocks I (7) are uniformly and fixedly connected to the side wall of the cylinder body (1) at the same horizontal position, support rods I (8) are rotatably connected to the bottom ends of the fixing blocks I (7), and support rods II (9) are inserted into the bottom ends of the support rods I (8).

2. A mechanically self-locking hydraulic jack according to claim 1, wherein: the cylinder body (1) is fixedly connected with a second fixing block (10) on the side wall close to the second supporting rods (9), and the three second fixing blocks (10) are fixedly connected with clamping rings (11) on the side wall close to the second supporting rods (9).

3. A mechanically self-locking hydraulic jack according to claim 1, wherein: the piston ejector rod (5) is inserted into the lock nut (6), and the piston ejector rod (5) can be fixed by rotating the lock nut (6).

4. A mechanically self-locking hydraulic jack according to claim 1, wherein: the bottom end positions of the three first fixing blocks (7) are provided with limiting grooves (13), limiting rods (14) are fixedly connected to the inside of the limiting grooves (13), and the first supporting rods (8) are rotatably connected with the limiting rods (14) in the limiting grooves (13).

5. A mechanically self-locking hydraulic jack as claimed in claim 4, wherein: the surface of three bracing piece one (8) all is provided with grafting subassembly (15), grafting subassembly (15) all are including fixed connection grafting piece (1501) on bracing piece one (8) lateral wall, spout (16) have all been seted up to the inside of bracing piece one (8), bracing piece two (9) all peg graft in the inside of spout (16).

6. A mechanically self-locking hydraulic jack as claimed in claim 5, wherein: the bottom ends of the support rods II (9) are fixedly connected with anti-slip blocks (12), and a plurality of holes (17) are formed in the side wall, close to the plug-in block (1501), of the support rods II (9).

7. A mechanically self-locking hydraulic jack as claimed in claim 6, wherein: the inside of three grafting piece (1501) is all pegged graft and is had grafting pole (1502), the one end that spout (16) was kept away from to grafting pole (1502) is all fixedly connected with end cap (1503), grafting pole (1502) are located the inside surface of grafting piece (1501) and all twine waist have spring (1504), and the end of spring (1504) all decides on fixing the inboard at grafting piece (1501), and the equal fixed connection of the other end of spring (1504) is at the tip of grafting pole (1502).