CN216403684U

CN216403684U - Hydraulic jack with safety valve and lockable top disc

Info

Publication number: CN216403684U
Application number: CN202122776133.6U
Authority: CN
Inventors: 王惠明
Original assignee: Jiaxing Mingrui Technology Co ltd
Current assignee: Jiaxing Mingrui Technology Co ltd
Priority date: 2021-11-15
Filing date: 2021-11-15
Publication date: 2022-04-29
Anticipated expiration: 2031-11-15

Abstract

The utility model discloses a hydraulic jack with a safety valve and a lockable top disc, which comprises a jack and a locking mechanism, the top of the jack is provided with a locking mechanism which comprises a tray, a rotating shaft, a clamping plate, a threaded hole, a bolt and a rubber mat, the power output end of the jack is provided with a tray, both ends of the top of the tray are provided with rotating shafts, both sides of the tray are connected with clamping plates in a matching way through the rotating shafts, when the lifting connection position needs to be clamped, the clamping plates can be rotated to clamp the clamping plates at two sides of the lifting position, the threaded holes are aligned with each other, then the bolt is screwed between the threaded holes to fix the position of the clamping plate, the clamping and lifting part is stably clamped by the clamping plate, the connection stability of the lifting part is ensured, the lifting object is prevented from falling off, only the bolt needs to be screwed out during dismantling, and the clamping and lifting device is convenient to use and simple to operate.

Description

Hydraulic jack with safety valve and lockable top disc

Technical Field

The utility model relates to the technical field of hydraulic jacks, in particular to a hydraulic jack with a safety valve and a lockable top disc.

Background

The jack is light and small hoisting equipment which takes a rigid jacking piece as a working device and jacks a heavy object in a small stroke through a top bracket or a bottom supporting claw, and the jack is mainly used for vehicle repair, other hoisting, supporting and other work in departments of factories, mines, transportation and the like. The structure is light and firm, flexible and reliable, can be carried and operated by one person, and is very wide in application.

Patent No. CN 208603632U's patent has announced the hydraulic jack that has the relief valve that takes the locking of apical disk, through setting up guide bar, pipe, movable block, screw rod and slipmat, has solved the current common hydraulic jack apical disk that has the relief valve and has unfixed relatively between the heavy object, leads to the lower problem of security.

The hydraulic jack with the safety valve and the lockable top disc has the following defects in use: 1. when the hydraulic jack is used, the lifting part is clamped mainly through the movement of the movable block to ensure stable connection, the movable block is directly arranged at the top of the tray, and the position of the movable block is required to be adjusted before lifting operation, so that the lifting part is not shielded by the movable block, the operation is complicated, and the operation is not convenient for a lifting object which does not need to be clamped; 2. When the hydraulic jack lifts part of objects on one side, the lifting surface can incline along with the lifting height, and the tray part is bound with the lifting part, so that the advancing main body is easy to drive to incline, and the lifting operation cannot be carried out.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a hydraulic jack with a safety valve and a lockable top disc, which can effectively solve the problems in the background technology.

In order to achieve the purpose, the utility model adopts the technical scheme that:

the utility model provides a but hydraulic jack that has relief valve of top plate locking, includes the jack, still includes locking mechanism, locking mechanism is installed to the jack top, locking mechanism includes tray, pivot, splint, screw hole, bolt and cushion, the tray is installed to jack power take off end, the pivot is all installed at tray top both ends, the tray both sides are connected with splint through the pivot cooperation, splint keep away from pivot one end set up screw hole and be two, can dismantle between the screw hole and be connected with the bolt.

The jack is connected with the tray through a connecting mechanism, the connecting mechanism comprises a fixed disc, a top disc, mounting grooves, supporting rods, limiting holes, springs and limiting rods, the fixed disc is mounted at the power output end of the jack, the top disc is welded at the bottom of the tray, the mounting grooves are formed in the center of the top end of the inside of the fixed disc, the supporting rods are welded at the bottom of the top disc, the bottoms of the supporting rods are located inside the mounting grooves, the limiting holes are formed in two sides of the inside of the fixed disc, the springs are mounted at positions, close to the limiting holes, of the top of the fixed disc and connected with the bottom of the top disc through the springs, and the limiting rods penetrating through the inside of the springs and the limiting holes are fixedly connected to the bottom of the top disc; the fixed disk is connected with jack power take off end, the top dish is connected with the tray bottom, the bottom of bracing piece is located inside the mounting groove, mounting groove inner space is great, make the bracing piece both can fixed stay, certain skew angle has simultaneously, both sides are equipped with the spring between fixed disk and top dish, the spring can play fine joint action and make top dish and tray can produce certain angular migration simultaneously, after the tray is together fixed with the position of lifting, along with the jacking of object, when lifting the position and taking place the slope, can drive the skew of tray and top dish, nevertheless do not influence jack and fixed disk, therefore the jack still can continue to carry out the jacking operation, do not influence the use, the skew range of tray has been restricted in the cooperation of gag lever post and spacing hole, ensure the safety of jacking operation.

Furthermore, a pressing sleeve is arranged on one side of the bottom of the jack and connected with the control end of the jack; the jacking of the jack can be controlled by controlling the pressing sleeve through the pressing rod and the like.

Furthermore, a safety valve is arranged on one side of the bottom of the jack and communicated with an oil circuit inside the jack; the safety valve can improve the use safety of the jack.

Furthermore, rubber pads are bonded on one side of the surface of each clamping plate; the rubber mat can increase friction force at the joint between the surface of the clamping plate and the lifting surface and reduce pressure.

Compared with the prior art, the utility model has the following beneficial effects: the lifting device comprises a tray, clamping plates, screw holes, bolts, a lifting connecting position, clamping plates, clamping screws, clamping plates and a lifting part, wherein the clamping plates are connected to two sides of the tray through a rotating shaft and can be rotated along the rotating shaft, the clamping plates are positioned at the bottoms of the two sides of the tray in a normal state, the top of the tray is not shielded, common lifting operation can be directly performed, when the lifting connecting position needs to be clamped, the clamping plates can be rotated to be clamped on two sides of the lifting part, the threaded holes are aligned with each other, the bolts are screwed in the threaded holes, the positions of the clamping plates are fixed, the lifting part is stably clamped by the clamping plates, the connecting stability of the lifting part is ensured, the lifting object is prevented from falling off, and only the bolts need to be screwed out during dismounting; the fixed disk is connected with jack power take off end, the top dish is connected with the tray bottom, the bottom of bracing piece is located inside the mounting groove, mounting groove inner space is great, make the bracing piece both can fixed stay, certain skew angle has simultaneously, both sides are equipped with the spring between fixed disk and top dish, the spring can play fine joint action and make top dish and tray can produce certain angular migration simultaneously, after the tray is together fixed with the position of lifting, along with the jacking of object, when lifting the position and taking place the slope, can drive the skew of tray and top dish, nevertheless do not influence jack and fixed disk, therefore the jack still can continue to carry out the jacking operation, do not influence the use, the skew range of tray has been restricted in the cooperation of gag lever post and spacing hole, ensure the safety of jacking operation.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a hydraulic jack with a safety valve and a lockable top plate according to the utility model.

Fig. 2 is a schematic structural diagram of a locking mechanism of a hydraulic jack with a safety valve and a lockable top plate.

Fig. 3 is a schematic structural diagram of a connection mechanism of a hydraulic jack with a safety valve and a lockable top plate according to the utility model.

In the figure: 1. a jack; 2. pressing the sleeve; 3. a safety valve; 4. a locking mechanism; 401. A tray; 402. a rotating shaft; 403. a splint; 404. a threaded hole; 405. a bolt; 406. A rubber pad; 5. a connecting mechanism; 501. fixing the disc; 502. a top tray; 503. mounting grooves; 504. a support bar; 505. a limiting hole; 506. a spring; 507. a limiting rod.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

As shown in fig. 1-3, the hydraulic jack with the safety valve and the lockable top plate comprises a jack 1 and a locking mechanism 4, wherein the locking mechanism 4 is installed at the top of the jack 1, the locking mechanism 4 comprises a tray 401, a rotating shaft 402, clamping plates 403, threaded holes 404, bolts 405 and a rubber mat 406, the tray 401 is installed at the power output end of the jack 1, the rotating shaft 402 is installed at both ends of the top of the tray 401, the clamping plates 403 are connected to both sides of the tray 401 through the rotating shaft 402 in a matching manner, the threaded holes 404 are formed in one end, away from the rotating shaft 402, of the clamping plates 403, the number of the threaded holes 404 is two, and the bolts 405 are detachably connected between the threaded holes 404.

The lifting jack comprises a jack 1 and a tray 401, and is characterized by further comprising a connecting mechanism 5, wherein the connecting mechanism 5 is installed between the jack 1 and the tray 401, the connecting mechanism 5 comprises a fixed disc 501, a top disc 502, an installation groove 503, a support bar 504, a limiting hole 505, a spring 506 and a limiting rod 507, the fixed disc 501 is installed at the power output end of the jack 1, the top disc 502 is welded at the bottom of the tray 401, the installation groove 503 is formed in the center of the top end of the inside of the fixed disc 501, the support bar 504 is welded at the bottom of the top disc 502, the bottom of the support bar 504 is located inside the installation groove 503, the limiting holes 505 are formed in two sides of the inside of the fixed disc 501, the spring 506 is installed at the position, close to the limiting hole 505, of the top of the fixed disc 501 and is connected with the bottom of the top disc 502 through the spring 506, and the limiting rod 507 penetrating through the inside of the spring 506 and the limiting hole 505 is fixedly connected with the bottom of the top disc 502; the fixed disc 501 is connected with the power output end of the jack 1, the top disc 502 is connected with the bottom of the tray 401, the bottom of the supporting rod 504 is positioned in the mounting groove 503, the space in the mounting groove 503 is larger, so that the supporting rod 504 can be fixedly supported and has a certain offset angle, springs 506 are provided at both sides between the fixed platter 501 and the top platter 502, the springs 506 can provide a good connection function and allow the top platter 502 and the tray 401 to be angularly offset, after the tray 401 and the lifting part are fixed together, along with the lifting of the object, when the lifting part is inclined, the tray 401 and the top plate 502 are driven to deviate, but do not influence jack 1 and fixed disk 501, therefore jack 1 still can continue to carry out the jacking operation, does not influence the use, and the cooperation of spacing pole 507 and spacing hole 505 has restricted the range of excursion of tray 401, ensures the safety of jacking operation.

The device comprises a jack 1, a pressing sleeve 2, a pressing sleeve and a pressing sleeve, wherein the pressing sleeve 2 is installed on one side of the bottom of the jack 1, and the pressing sleeve 2 is connected with a control end of the jack 1; the jacking of the jack 1 can be controlled by controlling the pressing sleeve 2 through a pressing rod and the like.

The safety valve 3 is arranged on one side of the bottom of the jack 1, and the safety valve 3 is communicated with an oil circuit in the jack 1; the safety valve 3 can improve the use safety of the jack 1.

Wherein, a rubber pad 406 is adhered on one side of the surface of the clamping plate 403; the rubber pad 406 may increase friction and decrease pressure at the interface between the surface of the clamping plate 403 and the lifting surface.

It should be noted that the utility model is a hydraulic jack with a safety valve and a lockable top plate, when in use, the two sides of a tray 401 are connected with clamping plates 403 through a rotating shaft 402, the clamping plates 403 can be rotated along the rotating shaft 402, the clamping plates 403 are positioned at the bottoms of the two sides of the tray 401 under normal state, the top of the tray 401 is not shielded, common jacking operation can be directly carried out, when a jacking connection position needs to be clamped, the clamping plates 403 can be rotated to clamp the clamping plates 403 at the two sides of the jacking position, meanwhile, threaded holes 404 are mutually aligned, then bolts 405 are screwed between the threaded holes 404 to fix the positions of the clamping plates 403, so that the clamping plates 403 can stably clamp the jacking position, the connection stability of the jacking position is ensured, the jacking object is prevented from falling off, only the bolts 405 need to be screwed out when being dismounted, the use is convenient and the operation is simple, a fixed disk 501 is connected with a power output end of the jack 1, the top disc 502 is connected with the bottom of the tray 401, the bottom of the support rod 504 is located inside the installation groove 503, the internal space of the installation groove 503 is large, so that the support rod 504 can be fixedly supported and has a certain offset angle, the springs 506 are arranged on two sides between the fixed disc 501 and the top disc 502, the springs 506 can play a good connection role and enable the top disc 502 and the tray 401 to generate certain angular offset, when the tray 401 and the lifting part are fixed together, along with the jacking of an object, when the lifting part is inclined, the tray 401 and the top disc 502 can be driven to offset, but the jack 1 and the fixed disc 501 are not affected, so that the jack 1 can still continue jacking operation without affecting the use, the offset amplitude of the tray 401 is limited by the matching of the limiting rod 507 and the limiting hole 505, the safety of the jacking operation is ensured, the safety valve 3 can improve the use safety of the jack 1, the sleeve 2 is pressed through the control of a pressure rod and the like, the jacking of the jack 1 can be controlled, and the rubber pad 406 can increase friction force at the joint between the surface of the clamping plate 403 and the lifting surface, so that the pressure is reduced.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The hydraulic jack with the safety valve and the lockable top plate comprises a jack (1) and is characterized by further comprising a locking mechanism (4), wherein the locking mechanism (4) is installed at the top of the jack (1), the locking mechanism (4) comprises a tray (401), a rotating shaft (402), clamping plates (403), threaded holes (404), bolts (405) and rubber mats (406), the tray (401) is installed at the power output end of the jack (1), the rotating shaft (402) is installed at two ends of the top of the tray (401), the clamping plates (403) are connected to two sides of the tray (401) through the rotating shaft (402) in a matched mode, the threaded holes (404) are formed in one end, far away from the rotating shaft (402), of the clamping plates (403), the threaded holes (404) are two, and the bolts (405) are detachably connected between the threaded holes (404).

2. The hydraulic jack with a top-hat lockable safety valve as claimed in claim 1, wherein: the jack is characterized by further comprising a connecting mechanism (5), the connecting mechanism (5) is installed between the jack (1) and the tray (401), the connecting mechanism (5) comprises a fixed disc (501), a top disc (502), a mounting groove (503), a supporting rod (504), a limiting hole (505), a spring (506) and a limiting rod (507), the fixed disc (501) is installed at the power output end of the jack (1), the top disc (502) is welded at the bottom of the tray (401), the mounting groove (503) is formed in the center of the top end of the fixed disc (501), the supporting rod (504) is welded at the bottom of the top disc (502), the bottom of the supporting rod (504) is located inside the mounting groove (503), the limiting holes (505) are formed in two sides of the inside of the fixed disc (501), the spring (506) is installed at the position, close to the limiting hole (505), at the top of the fixed disc (501) and is connected with the bottom of the top disc (502) through the spring (506), the bottom of the top plate (502) is fixedly connected with a limiting rod (507) penetrating through the interior of the spring (506) and the limiting hole (505).

3. The hydraulic jack with a top-hat lockable safety valve as claimed in claim 1, wherein: the pressing sleeve (2) is installed on one side of the bottom of the jack (1), and the pressing sleeve (2) is connected with the control end of the jack (1).

4. The hydraulic jack with a top-hat lockable safety valve as claimed in claim 1, wherein: a safety valve (3) is installed on one side of the bottom of the jack (1), and the safety valve (3) is communicated with an oil circuit inside the jack (1).

5. The hydraulic jack with a top-hat lockable safety valve as claimed in claim 1, wherein: and rubber pads (406) are adhered to one sides of the surfaces of the clamping plates (403).