CN215626529U

CN215626529U - Hydraulic jack with safety valve and lockable top disc

Info

Publication number: CN215626529U
Application number: CN202120977306.8U
Authority: CN
Inventors: 郑如新
Original assignee: Anhui Miyaji Photoelectric Technology Co ltd
Current assignee: Anhui Miyaji Photoelectric Technology Co ltd
Priority date: 2021-05-10
Filing date: 2021-05-10
Publication date: 2022-01-25
Anticipated expiration: 2031-05-10

Abstract

The utility model discloses a hydraulic jack with a lockable top disc and a safety valve, which comprises a supporting plate, a jack body, a top disc and a supporting rod, wherein the surface of the supporting plate is provided with the jack body, a connecting seat is sleeved outside a driving rod of the jack body, two connecting sleeves are symmetrically installed outside the connecting seat, the surface of the connecting seat is fixedly provided with the top disc, an adjusting shaft is rotatably connected in the top disc through a welded bearing, the outer wall of the adjusting shaft is provided with two groups of thread grooves, the thread grooves of the adjusting shaft are connected with a connecting block through external threads, the surface of the connecting block is provided with a fixing block, the surface of the supporting plate is symmetrically provided with four mounting grooves, and the supporting rod is rotatably connected in the mounting grooves of the supporting plate through a rotating shaft. This but hydraulic jack that has a relief valve of paring disc locking not only is convenient for change paring disc, can improve the stability of jack body moreover.

Description

Hydraulic jack with safety valve and lockable top disc

Technical Field

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

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, is mainly used for the departments of factories, mines, transportation and the like as vehicle repair and other hoisting, supporting and the like, has a light and firm structure, is flexible and reliable, and can be carried and operated by one person. In the prior art, safety valves are installed on hydraulic jacks for controlling the flow and pressure of hydraulic oil, so that the jacks can be safely used.

The existing common hydraulic jack with a safety valve is relatively unfixed between a top disc and a heavy object, and the contact area between the top disc and the heavy object is small, so that the top disc and the heavy object are separated during use, and the safety is low; moreover, the top plate of most existing jacks is a fixed structure, and cannot be replaced according to the size of an object to be supported, so that the universality of the jack in use is reduced.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a hydraulic jack with a safety valve, in which the top plate can be locked, so as to solve the problems of the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a but hydraulic jack that has relief valve of apical plate locking, includes backup pad, jack body, apical plate and bracing piece, the surface of backup pad is equipped with the jack body, the outside cover of the actuating lever of jack body is equipped with the connecting seat, two connecting sleeve are installed to the external symmetry of connecting seat, the surface of connecting seat is equipped with and is fixed with the apical plate, rotate through welded bearing in the apical plate and be connected with the regulating spindle, two sets of thread grooves have been seted up to the outer wall of regulating spindle, the thread groove external screw thread connection of regulating spindle has the connecting block, the surface mounting of connecting block has the fixed block, four mounting grooves have been seted up to the surface symmetry of backup pad, all rotate through the pivot in four mounting grooves of backup pad and be connected with the bracing piece.

In a further embodiment, a through hole is formed in the outer wall of one side, away from the connecting seat, of the connecting sleeve, a guide shaft is connected in the through hole of the connecting sleeve in a sliding mode, a guide block is arranged on the end face, located inside the connecting sleeve, of the guide shaft, a pull plate is arranged on the end face, located outside the connecting sleeve, of the guide shaft, a supporting spring is sleeved outside the guide shaft, a fixing pin is arranged on one side, away from the guide shaft, of the guide block, and the top disc on the surface of the connecting seat can be installed and detached quickly.

In a further embodiment, the locating piece is installed at the top of bracing piece, magnet is installed to a side end face that the locating piece is close to the jack body, one side outer wall that the bracing piece is close to the jack body is equipped with the stopper, can prescribe a limit to the position of bracing piece, avoids the bracing piece to rock.

In a further embodiment, four fixing grooves are symmetrically formed in the outer wall of the lower half portion of the jack body, a fixing rod is rotatably connected into the fixing grooves of the jack body through a rotating shaft, and a magnet is also mounted on the outer wall of one side, close to the jack body, of the fixing rod and can support the supporting rod, and the stability of the supporting rod in an unfolding state is guaranteed.

In a further embodiment, the thread directions of the two groups of thread grooves on the outer wall of the adjusting shaft are opposite, one end of the adjusting shaft extends out of the top disc, and a turntable is arranged on the end face, located outside the top disc, of the adjusting shaft, so that the position of the fixing block can be adjusted at the same time.

In a further embodiment, two moving grooves are symmetrically formed in the surface of the top disc, and the connecting block moves in the moving grooves in the surface of the top disc, so that the moving path of the fixing block can be limited, and the horizontal movement of the fixing block is guaranteed.

In a further embodiment, two fixing holes are symmetrically formed in the outer walls of the two sides of the driving rod of the jack body, and the fixing pins extend into the fixing holes of the driving rod of the jack body, so that the connecting seat can be fixedly connected with the driving rod of the jack body.

The utility model has the technical effects and advantages that: the hydraulic jack with the safety valve and the lockable top disc can enable the two fixed blocks to be attached to the two ends of the supported object by rotating the adjusting shaft, so that the supported object is fixed, the locking effect is achieved, and the use safety of the jack is improved; the guide shaft is pulled to separate the fixing pin from the fixing hole in the outer wall of the driving rod of the jack body, so that the jacking disc can be quickly disassembled, the jacking discs with different specifications can be replaced according to use requirements, and the application range of the jack is wider; through launching the bracing piece to support the bracing piece through the fixed rod, thereby increased the area of contact of backup pad with ground, and then can effectual increase jack body's stability, prevent that the jack body from empting, this jack-disk lockable has a hydraulic jack of relief valve, not only is convenient for change the jack-disk, can improve the stability of jack body moreover.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is a cross-sectional view of the coupling sleeve of the present invention;

fig. 4 is an enlarged view of the utility model at a in fig. 1.

In the figure: the jack comprises a supporting plate 1, a jack body 2, a connecting seat 3, a connecting sleeve 4, a jacking plate 5, an adjusting shaft 6, a connecting block 7, a fixing block 8, a supporting rod 9, a fixing rod 10, a positioning block 11, a guide shaft 12, a guide block 13, a pulling plate 14, a supporting spring 15, a fixing pin 16 and a limiting block 17.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

In order to fix a supported object and achieve a locking function, as shown in fig. 1 and 2, a jack body 2 is fixed on the surface of a support plate 1 in a welding manner, a connecting seat 3 is sleeved outside a drive rod of the jack body 2, a top disc 5 is fixed on the surface of the connecting seat 3 through bolts, two moving grooves are symmetrically formed in the surface of the top disc 5, an adjusting shaft 6 is rotatably connected in the moving groove in the surface of the top disc 5 through a welded bearing, two groups of thread grooves are formed in the outer wall of the adjusting shaft 6, a connecting block 7 is connected to the thread groove of the adjusting shaft 6 through external threads, fixed blocks 8 are fixed on the surface of the connecting block 7 in a welding manner, anti-slip pads are bonded to the opposite surfaces of the two fixed blocks 8, the connecting block 7 moves in the moving groove in the surface of the top disc 5, and the thread directions of the two groups of thread grooves in the outer wall of the adjusting shaft 6 are opposite, one end of the adjusting shaft 6 extends out of the top disc 5, and a turntable is welded and fixed on the end face, located outside the top disc 5, of the adjusting shaft 6;

in order to facilitate the replacement of the top plate 5, the range of use of the jack body 2 is increased, as shown in fig. 2 and 3, two connecting sleeves 4 are symmetrically welded and fixed outside the connecting seat 3, two fixing holes are symmetrically arranged on the outer walls of the two sides of the driving rod of the jack body 2, a through hole is arranged on the outer wall of one side of the connecting sleeve 4 far away from the connecting seat 3, a guide shaft 12 is connected in the through hole of the connecting sleeve 4 in a sliding way, the end surface of the guide shaft 12 located inside the connecting sleeve 4 is fixed with a guide block 13 by a screw, the end surface of the guide shaft 12 outside the connecting sleeve 4 is fixed with a pulling plate 14 through a screw, a supporting spring 15 is sleeved outside the guide shaft 12, a fixing pin 16 is fixedly welded on one side of the guide block 13, which is far away from the guide shaft 12, and the fixing pin 16 extends into a fixing hole of a driving rod of the jack body 2;

in order to increase the area of contact of backup pad 1 with ground, increase the stability when jack body 2 uses, as shown in fig. 1 and fig. 2, four mounting grooves have been seted up to backup pad 1's surface symmetry, all be connected with bracing piece 9 through the pivot rotation in four mounting grooves of backup pad 1, the top welded fastening of bracing piece 9 has locating piece 11, locating piece 11 is close to one side terminal surface of jack body 2 and installs magnet, bracing piece 9 is close to one side outer wall welded fastening of jack body 2 and has a stopper 17, four fixed slots have been seted up to the lower half outer wall symmetry of jack body 2, also be connected with dead lever 10 through the pivot rotation in the fixed slot of jack body 2, magnet is also installed to one side outer wall that dead lever 10 is close to jack body 2.

The working principle of the hydraulic jack with the safety valve and the lockable top plate is that when the hydraulic jack with the safety valve is used, the jack body 2 is moved to a designated position, the four support rods 9 are unfolded from the support plate 1, the fixed rod 10 is unfolded from the jack body 2 and is abutted against the limit block 17, so that a triangular structure is formed among the jack body 2, the support rods 9 and the fixed rod 10, the contact area of the support plate 1 and the ground is increased, the stability of the jack body 2 in use is improved, the top plate 5 is overlapped with the bottom of a heavy object, the adjusting shaft 6 is rotated through a turntable, the adjusting shaft 6 drives the two connecting blocks 7 to move oppositely, the two fixed blocks 8 are respectively attached to two sides of the heavy object, the heavy object is fixed to play a locking role, then the lifting work can be carried out, when the top plate 5 needs to be replaced, the guide shaft 12 is pulled through the pull plate 14, make the guide block 13 compress supporting spring 15, the fixed orifices separation on the fixed pin 16 and the actuating lever outer wall of jack body 2 simultaneously, can be quick dismantle dish 5, and then can change the dish 5 of pushing up of different specifications according to the user demand.

Finally, it should be noted that: the foregoing is merely a preferred embodiment of the present invention and is not intended to limit the present invention.

Claims

1. The utility model provides a but hydraulic jack that has relief valve of paring disc locking, includes backup pad (1), jack body (2), paring disc (5) and bracing piece (9), its characterized in that: the surface of backup pad (1) is equipped with jack body (2), the outside cover of the actuating lever of jack body (2) is equipped with connecting seat (3), two connecting sleeve (4) are installed to the outside symmetry of connecting seat (3), the surface of connecting seat (3) is established and is fixed with take-up (5), it is connected with regulating spindle (6) to rotate through the welded bearing in take-up (5), two sets of thread grooves have been seted up to the outer wall of regulating spindle (6), the thread groove external screw thread of regulating spindle (6) is connected with connecting block (7), the surface mounting of connecting block (7) has fixed block (8), four mounting grooves have been seted up to the surface symmetry of backup pad (1), all rotate through the pivot in four mounting grooves of backup pad (1) and be connected with bracing piece (9).

2. The hydraulic jack with a top-hat lockable safety valve as claimed in claim 1, wherein: the connecting sleeve (4) keep away from one side outer wall of connecting seat (3) and seted up the through-hole, sliding connection has guiding axle (12) in the through-hole of connecting sleeve (4), the terminal surface that guiding axle (12) are located connecting sleeve (4) inside is equipped with guide block (13), the terminal surface that guiding axle (12) are located connecting sleeve (4) outside is equipped with arm-tie (14), the outside cover of guiding axle (12) is equipped with supporting spring (15), one side that guiding axle (12) were kept away from in guide block (13) is equipped with fixed pin (16).

3. The hydraulic jack with a top-hat lockable safety valve as claimed in claim 1, wherein: locating piece (11) are installed at the top of bracing piece (9), magnet is installed to a side end face that locating piece (11) are close to jack body (2), one side outer wall that bracing piece (9) are close to jack body (2) is equipped with stopper (17).

4. The hydraulic jack with a top-hat lockable safety valve as claimed in claim 1, wherein: four fixed slots are symmetrically formed in the outer wall of the lower half portion of the jack body (2), a fixed rod (10) is rotatably connected into the fixed slots of the jack body (2) through a rotating shaft, and a magnet is also mounted on the outer wall of one side, close to the jack body (2), of the fixed rod (10).

5. The hydraulic jack with a top-hat lockable safety valve as claimed in claim 1, wherein: the threads of two sets of thread grooves of adjusting shaft (6) outer wall move towards opposite, the one end of adjusting shaft (6) extends to outside the top dish (5), just adjusting shaft (6) are located the outside terminal surface of top dish (5) and are equipped with the carousel.

6. The hydraulic jack with a top-hat lockable safety valve as claimed in claim 1, wherein: two moving grooves are symmetrically formed in the surface of the top disc (5), and the connecting block (7) moves in the moving grooves in the surface of the top disc (5).

7. The hydraulic jack with a top-hat lockable safety valve as claimed in claim 2, wherein: two fixing holes are symmetrically formed in the outer walls of the two sides of the driving rod of the jack body (2), and the fixing pins (16) extend into the fixing holes of the driving rod of the jack body (2).