CN215726525U

CN215726525U - Pressure detection device with overvoltage protection function for jack

Info

Publication number: CN215726525U
Application number: CN202121616188.4U
Authority: CN
Inventors: 柳时波
Original assignee: Wuhan Jingwei Longbo Testing Technology Co ltd
Current assignee: Wuhan Jingwei Longbo Testing Technology Co ltd
Priority date: 2021-07-16
Filing date: 2021-07-16
Publication date: 2022-02-01
Anticipated expiration: 2031-07-16

Abstract

The utility model discloses a pressure detection device with an overvoltage protection function for a jack, which comprises a fixed shell, wherein a hinge seat is fixed on the side wall of the fixed shell, the hinge seat is hinged with a hinge block and is in sliding connection in a through hole through a support column, so that a spring is compressed, an inner shell applies downward force to a jack column through a through hole, one end of the jack column slides into an accommodating groove, so that the inner shell slides downward, the inner shell drives a jack disc to move downward, and a pressure sensor moves downward, so that the pressure sensor is prevented from being damaged due to overlarge pressure, the pressure sensor has an overvoltage protection function, and the deformation of equipment due to overlarge jacking force of a jack body is avoided; the top disc is convenient to return through the rotating fit of the hinge block and the hinge seat, the top disc drives the support column to move upwards, and the support column pulls the chuck to move upwards, so that the inner shell slides into the countersunk groove again, and the quick reset device is quick in reset and convenient to reuse.

Description

Pressure detection device with overvoltage protection function for jack

Technical Field

The utility model relates to the technical field of jacks, in particular to a pressure detection device with an overvoltage protection function for a jack.

Background

At present, a jack is a light and small lifting device which uses a rigid lifting piece as a working device and lifts a heavy object in a stroke through a top bracket or a bottom supporting claw. The jack is mainly used for the departments of factories, mines, transportation and the like as vehicle repair, other lifting, supporting and the like. The structure is light, firm, flexible and reliable, and can be carried and operated by one person. In the maintenance of some equipment, the equipment needs to be jacked.

However, in the process of jacking some precision equipment by using the existing jack, the pressure value of the jack is difficult to record, and the jacking force of the jack is too large to cause equipment deformation, so that the pressure detection device for the jack with the overvoltage protection function is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a pressure detection device with an overvoltage protection function for a jack, which realizes the overvoltage protection function of a pressure sensor through the matching of a top disc, a support column, a chuck, a spring and a fixed shell, and avoids equipment deformation caused by overlarge jacking force of a jack body so as to solve the problems in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: the pressure detection device with the overvoltage protection function for the jack comprises a fixed shell, a jacking assembly and a top plate, wherein a hinged seat is fixed on the side wall of the fixed shell, the hinged seat is hinged to a hinged block, a supporting rod is fixed at the top of the hinged block, a pressure sensor is fixed inside the top plate, a fixed column is arranged at the bottom of the top plate, a spring is sleeved on the outer wall of the fixed column, a chuck is fixed at one end, away from the top plate, of the fixed column, the fixed column is connected inside an inner shell in a sliding mode, a jacking column is connected inside the inner shell in a sliding mode, and a jack body is fixed at the bottom of the fixed shell through a fastening screw.

Preferably, the jacking components comprise hinged seats, fixed shafts, hinged blocks, supporting shafts and rubber sleeves, and two jacking components are symmetrically arranged on the side wall of the fixed shell.

Preferably, articulated seat includes two curb plates, two it is connected with articulated piece to rotate between the curb plate, the fixed axle runs through articulated seat and articulated piece, the bearing has been cup jointed to the fixed axle middle-end, articulated piece is connected with articulated piece through the bearing, the rubber sleeve has been cup jointed to bracing piece one end.

Preferably, four threaded holes are formed in the side wall of the fixed shell at equal intervals in an annular mode, and the bottom of the fixed shell is provided with a circular clamping groove, and the four threaded holes are communicated with the inside of the circular clamping groove.

Preferably, four equal threaded connection in the screw hole has fastening screw, the one end of jack body is located inside the circular draw-in groove, four fastening screw's one end all laminates with jack body lateral wall.

Preferably, the top of the top plate is provided with a mounting groove for fixing pressure sensing, the side wall of the top plate is provided with a wire arranging hole, and the wire arranging hole is communicated with the mounting groove.

Preferably, the chuck lateral wall is equipped with first conical surface, the inner shell top is equipped with the gliding round hole of confession support column, and the inner shell bottom is equipped with the gliding conducting hole of confession support column, the through-hole has been seted up to the inner shell lateral wall symmetry.

Preferably, the two ends of the top column are provided with second conical surfaces, the inner wall of the through hole is symmetrically provided with the top column, and the top column is connected inside the through hole in a sliding mode.

Preferably, the inner shell is internally provided with a through hole, the round hole, the through hole, the round groove and the via hole are communicated, and the chuck is connected inside the round groove in a sliding manner.

Preferably, a countersunk groove is formed in the fixed shell, an accommodating groove is formed in the countersunk groove, and an inclined plane for sliding of the support pillar is formed at the joint of the countersunk groove and the accommodating groove.

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

1. the top disc, the supporting column, the chuck, the spring and the fixed shell are mutually matched, the supporting column is in sliding connection in the conducting hole, the spring is compressed, the inner shell exerts downward force on the top column through the through hole, one end of the top column slides into the accommodating groove, the inner shell slides downwards, the inner shell drives the top disc to move downwards, and meanwhile, the pressure sensor moves downwards, so that the pressure sensor is prevented from being damaged due to overlarge pressure, the pressure sensor has an overvoltage protection function, and the phenomenon that equipment is deformed due to overlarge jacking force of the jack body is avoided;

2. the top disc is convenient to return through the rotating fit of the hinge block and the hinge seat, the top disc drives the support column to move upwards, and the support column pulls the chuck to move upwards, so that the inner shell slides into the countersunk groove again, and the quick reset device is quick in reset and convenient to reuse.

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 perspective view of the stationary housing and the jacking assembly of the present invention;

fig. 4 is a perspective view of the top pillar of the present invention.

In the figure: 1. a stationary housing; 11. a hinged seat; 12. a fixed shaft; 13. a hinged block; 14. a support shaft; 15. a rubber sleeve; 16. accommodating grooves; 161. a countersunk groove; 17. a threaded hole; 18. fastening screws; 2. a top tray; 21. mounting grooves; 22. a wire arranging hole; 23. a support pillar; 24. a chuck; 241. a first conical surface; 25. a spring; 3. an inner shell; 31. a circular hole; 33. a through hole; 34. a circular groove; 35. a via hole; 4. a top pillar; 41. a second tapered surface; 5. a pressure sensor; 6. the jack body.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a pressure measurement device for jack with overvoltage protection function, including fixed casing 1, jacking subassembly and apical plate 2, the inherent articulated seat 11 of 1 lateral wall of fixed casing, articulated seat 11 is connected with articulated piece 13 is articulated, articulated piece 13 top is fixed with the bracing piece, 2 inside pressure sensor 5 that are fixed with of apical plate, there is the fixed column apical plate 2 bottoms, the spring 25 has been cup jointed to the fixed column outer wall, 2 one end of apical plate is kept away from to the fixed column is fixed with chuck 24, fixed column sliding connection is inside

inner shell

3, 3 inside sliding connection of inner shell has apical column 4, fixed casing 1 bottom is fixed with jack body 6 through fastening screw 18.

The jacking assembly comprises a hinged seat 11, a fixed shaft 12, a hinged block 13, a supporting shaft 14 and a rubber sleeve 15, and two jacking assemblies are symmetrically arranged on the side wall of the fixed shell 1.

Articulated seat 11 includes two curb plates, rotates between two curb plates to be connected with articulated piece 13, and fixed axle 12 runs through articulated seat 11 and articulated piece 13, and the bearing has been cup jointed to fixed axle 12 middle-end, and articulated piece 13 is connected with articulated piece 13 through the bearing, and rubber sleeve 15 has been cup jointed to bracing piece one end, presses back shaft 14 through rubber sleeve 15, through articulated piece 13 and the normal running fit of articulated seat 11, is convenient for carry out the return of overhead tray 2.

Four threaded holes 17 are formed in the side wall of the fixed shell 1 at equal intervals in an annular mode, a circular clamping groove is formed in the bottom of the fixed shell 1, and the four threaded holes 17 are communicated with the inside of the circular clamping groove.

Four inside equal threaded connection of screw hole 17 has fastening screw 18, and the one end of jack body 6 is located inside the circular clamping groove, and the one end of four fastening screw 18 all laminates with jack body 6 lateral wall, through rotating four fastening screw 18 respectively, makes four 18 one ends of fastening screw support jack body 6 tops to the realization can be dismantled with jack body 6 and be connected.

The top of the top plate 2 is provided with a mounting groove 21 for fixing pressure sensing, the side wall of the top plate 2 is provided with a wire arranging hole 22, the wire arranging hole 22 is communicated with the mounting groove 21, the mounting groove 21 is convenient for the installation of the pressure sensing, and the wire arranging hole 22 is used for leading out a power line of the pressure sensing.

The side wall of the chuck 24 is provided with a first conical surface 241, the top of the inner shell 3 is provided with a round hole 31 for the support column 23 to slide, the bottom of the inner shell 3 is provided with a via hole 35 for the support column 23 to slide, and the side wall of the inner shell 3 is symmetrically provided with through holes 33.

Both ends of the top pillar 4 are provided with second conical surfaces 41, the inner wall of the through hole 33 is symmetrically provided with the top pillar 4, and the two top pillars 4 are slidably connected inside the through hole 33.

The through hole 33 is arranged inside the inner shell 3, the round hole 31, the through hole 33, the round groove 34 and the conducting hole 35 are communicated, the chuck 24 is connected inside the round groove 34 in a sliding mode, the pressure sensor 5 is enabled to have an overpressure protection function through the sliding fit of the top column 4 and the chuck 24, and therefore the pressure sensor 5 is prevented from being damaged due to the fact that pressure is too large.

The fixed casing 1 is internally provided with a countersunk groove 161, the countersunk groove 161 is internally provided with a containing groove 16, and the joint of the countersunk groove 161 and the containing groove 16 is provided with an inclined plane for sliding the support pillar 4.

When the jack is used specifically, by starting the jack body 6, the jack body 6 jacks up equipment through the top disc 2, and meanwhile, the pressure sensor 5 detects pressure, when the jacking force of the jack body 6 is too large, the top disc 2 drives the supporting column 23 to move downwards, the supporting column 23 compresses the spring 25 through the chuck 24, the supporting column 23 slides in the through hole 35 and is under the elastic force action of the spring 25, so that the inner shell 3 applies downward force to the top column 4 through the through hole 33, because the inclined plane is in contact with the second conical surface 41 at one end of the top column 4, the other end of the top column 4 is tightly attached to the chuck 24, the chuck 24 moves downwards, the first conical surface 241 of the chuck 24 is in contact with the second conical surface 41 of the top column 4, one end of the top column 4 slides into the accommodating groove 16, so that the inner shell 3 slides downwards, the inner shell 3 drives the top disc 2 to move downwards, and meanwhile, the pressure sensor 5 moves downwards, thereby avoiding the pressure sensor 5 from being damaged due to too large pressure, and avoid 6 jacking dynamics of jack body to too big equipment deformation that causes.

One end of the supporting shaft 14 is pressed through the rubber sleeve 15, the other end of the supporting shaft 14 inclines upwards through the rotating fit of the hinge block 13 and the hinge seat 11, the supporting shaft 14 upwards jacks the jacking disc 2, the jacking disc 2 drives the supporting column 23 to move upwards, the supporting column 23 pulls the chuck 24 to move upwards, the inner shell 3 slides into the countersunk groove 161 again, and the first conical surface 241 of the chuck 24 is separated from the other end of the jacking column 4, so that the rapid resetting of the utility model is completed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a pressure measurement device for jack with overvoltage protection function, includes fixed casing (1), jacking subassembly and top dish (2), its characterized in that: fixed casing (1) lateral wall is inherent articulated seat (11), articulated seat (11) are connected with articulated piece (13) are articulated, articulated piece (13) top is fixed with the bracing piece, top dish (2) inside is fixed with pressure sensor (5), there is the fixed column top dish (2) bottom, spring (25) have been cup jointed to the fixed column outer wall, the fixed column is kept away from top dish (2) one end and is fixed with chuck (24), fixed column sliding connection is inside inner shell (3), inner shell (3) inside sliding connection has fore-set (4), fixed casing (1) bottom is fixed with jack body (6) through fastening screw (18).

2. The pressure detecting device for a jack with an overpressure protection function as claimed in claim 1, wherein: the jacking assembly comprises a hinged seat (11), a fixed shaft (12), a hinged block (13), a supporting shaft (14) and a rubber sleeve (15), and two jacking assemblies are symmetrically arranged on the side wall of the fixed shell (1).

3. The pressure detecting device for a jack with an overpressure protection function as claimed in claim 2, wherein: articulated seat (11) includes two curb plates, two it is connected with articulated piece (13) to rotate between the curb plate, fixed axle (12) run through articulated seat (11) and articulated piece (13), the bearing has been cup jointed to fixed axle (12) middle-end, articulated piece (13) is connected with articulated piece (13) through the bearing, rubber sleeve (15) have been cup jointed to bracing piece one end.

4. The pressure detecting device for a jack with an overpressure protection function as claimed in claim 1, wherein: four threaded holes (17) are seted up to fixed casing (1) lateral wall annular equidistance, the circular draw-in groove in fixed casing (1) bottom, four threaded holes (17) all communicate with each other with circular draw-in groove is inside.

5. The pressure detecting device for a jack with an overpressure protection function as claimed in claim 4, wherein: four equal threaded connection has fastening screw (18) in screw hole (17), the one end of jack body (6) is located inside the circular draw-in groove, four the one end of fastening screw (18) all laminates with jack body (6) lateral wall.

6. The pressure detecting device for a jack with an overpressure protection function as claimed in claim 5, wherein: the top plate (2) is provided with a mounting groove (21) for fixing pressure sensing, the side wall of the top plate (2) is provided with a wire arranging hole (22), and the wire arranging hole (22) is communicated with the mounting groove (21).

7. The pressure detecting device for a jack with an overpressure protection function as claimed in claim 6, wherein: chuck (24) lateral wall is equipped with first conical surface (241), inner shell (3) top is equipped with supplies support column (23) gliding round hole (31), and inner shell (3) bottom is equipped with supplies support column (23) gliding conducting hole (35), through-hole (33) have been seted up to inner shell (3) lateral wall symmetry.

8. The pressure detecting device for a jack with an overpressure protection function as claimed in claim 7, wherein: the support pillar (4) both ends all are equipped with second toper face (41), through-hole (33) inner wall symmetry is equipped with support pillar (4), two support pillar (4) sliding connection is inside through-hole (33).

9. The pressure detecting device for a jack with an overpressure protection function as claimed in claim 8, wherein: the inner shell (3) is internally provided with a through hole (33), the round hole (31), the through hole (33), the circular groove (34) and the conducting hole (35) are communicated, and the chuck (24) is slidably connected inside the circular groove (34).

10. The pressure detecting device for a jack with an overpressure protection function as claimed in claim 9, wherein: the fixed casing (1) is inside to be equipped with countersunk head groove (161), countersunk head groove (161) is inside to be equipped with holding tank (16), countersunk head groove (161) and holding tank (16) junction are equipped with the gliding inclined plane of confession fore-set (4).