CN218290265U

CN218290265U - Hydraulic jack with sealing structure

Info

Publication number: CN218290265U
Application number: CN202221998630.9U
Authority: CN
Inventors: 周振义
Original assignee: Shanghai Ruihao Petroleum Equipment Co ltd
Current assignee: Shanghai Ruihao Petroleum Equipment Co ltd
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2023-01-13
Anticipated expiration: 2032-07-29

Abstract

The utility model relates to a hydraulic jack technical field just discloses a take seal structure's hydraulic jack, comprising a cylinder body, the inside sliding connection of cylinder body has the piston, the inside of cylinder body is provided with double-deck chromium layer, the surface of piston is provided with the metal chromium layer, the common double-deck dust seal circle of fixedly connected with of both sides wall of double-deck chromium, the standing groove has been seted up to the inside of roof in the cylinder body, the inside fixedly connected with direction disc of standing groove, the draw-in groove has been seted up to direction disc's inner wall, two inner walls of draw-in groove have the dwang through bearing frame swing joint. This hydraulic jack with seal structure through the setting of results such as direction disc and leading wheel, when the piston rebound, through double-deck dustproof sealing ring for maximum operating pressure can not reveal, later leads to the piston removal through the leading wheel, makes it can not squint, reduces the piston and prevents sinking the wearing and tearing of sealing washer to the double-deck.

Description

Hydraulic jack with sealing structure

Technical Field

The utility model relates to a hydraulic jack technical field specifically is a hydraulic jack of area seal structure.

Background

The hydraulic jack is a common jacking device in industrial production, and the sealing performance of a sealing part of the hydraulic jack is a key related to whether the hydraulic jack can work normally. The jacking and unloading are completed by the piston moving up and down in the inner wall of the oil cylinder. The sealing performance of the sealing component is the key to the normal operation of the hydraulic jack. The jacking and unloading are completed by the piston moving up and down in the inner wall of the oil cylinder, and the piston and the oil cylinder are in dynamic seal, so that the sealing performance of the sealing element is high.

In hydraulic jack's use, when the piston reciprocated, a lot of dust can be attached to the surface, most hydraulic jack adopts the sealed rubber ring of single type at present, not only can seal and also can prevent dust, but dustproof effect is not good, and the piston does not have guiding mechanism at the in-process that reciprocates, probably produce the skew when the piston removes, thereby the unilateral sealing washer of wearing and tearing, thereby make the dust follow the inside of getting into hydraulic jack of a time of sealing washer, make it break down, lead to hydraulic jack life to shorten so provide a hydraulic jack who takes seal structure.

SUMMERY OF THE UTILITY MODEL

The utility model provides a be not enough to prior art, the utility model provides a take seal structure's hydraulic jack has solved that the dustproof effect that proposes in the above-mentioned background is not good, and the piston does not have guiding mechanism at the in-process that reciprocates, probably produces the skew when the piston removes to the unilateral sealing washer of wearing and tearing, thereby make the dust follow the inside of the entering hydraulic jack of a time of sealing washer, make it break down, lead to hydraulic jack life to shorten the problem.

In order to achieve the above purpose, the utility model provides a hydraulic jack with sealing structure, including the cylinder body, the inside sliding connection of cylinder body has the piston, the inside of cylinder body is provided with double-deck chromium layer, the surface of piston is provided with the metal chromium layer, the both sides wall of double-deck chromium is fixedly connected with double-deck dustproof sealing washer jointly, the inside of roof has seted up the standing groove in the cylinder body, the inside fixedly connected with direction disc of standing groove, the inner wall of direction disc has seted up the draw-in groove, the two inner walls of draw-in groove have the dwang through bearing frame swing joint, the fixed surface of dwang is connected with the leading wheel, the upper surface of cylinder body is equipped with clearance mechanism;

clearance mechanism includes sliding connection in the clearance shell of cylinder body upper surface, the inner wall joint of clearance shell has the clearance centre form, the fixed surface of clearance shell is connected with annular collecting vat, the upper surface of clearance shell passes through bolt fixedly connected with fixed block, the inside of fixed block is pegged graft and is had the movable plate, the lower surface of movable plate is pegged graft and is had the limiting plate.

Optionally, the upper surface of the cylinder body is provided with a chute, and the chute is matched with the cleaning shell.

Optionally, the inner wall of the double-layer dustproof sealing ring is attached to the piston, the guide wheel is attached to the piston, and the cleaning inner die is attached to the piston.

Optionally, the surface of the cylinder body is fixedly connected with a pull ring, the surface of the limiting plate is provided with a threaded hole, and one side of the limiting plate is fixedly connected to one side of the cylinder body.

Optionally, the moving plate is L-shaped, and a sliding rod facilitating sliding of the moving plate is arranged inside the limiting plate.

Optionally, the quantity of draw-in groove is a plurality of, a plurality of the draw-in groove is the inside of annular array equidistance evenly distributed in direction disc.

The utility model provides a hydraulic jack scheme possesses following beneficial effect:

this take seal structure's hydraulic jack, through clearance mechanism, double-deck dustproof sealing ring, the setting of results such as direction disc and leading wheel, when the piston rebound, through double-deck dustproof sealing ring, make maximum operating pressure can not reveal, later lead to the piston removal through the leading wheel, make it can not squint, reduce the piston to the wearing and tearing of double-deck anti-settling seal circle, and through the setting of clearance mechanism, when the piston rebound, with the movable plate along with the limiting plate upwards sliding, drive clearance shell rebound, clear up piston surface adnexed dust through the clearance centre form, make inside the cleaner entering cylinder body of piston, and the dust of being cleared up falls into the annular collecting vat through the clearance shell, thereby at hydraulic jack during operation, make the dust can not get into the inside of cylinder body, can not lead to the hydraulic jack trouble because of the dust, make its life increase.

Drawings

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

fig. 2 is a schematic diagram of a second structural configuration of the present invention;

FIG. 3 is a schematic sectional view of the present invention;

FIG. 4 is a schematic structural view of the position relationship between the guide disc, the guide wheel and the slot;

fig. 5 is a schematic view of the structure of the cleaning mechanism of the present invention.

In the figure: 1. a cylinder body; 2. a piston; 3. double-layer chromium; 4. metallic chromium; 5. a double-layer dustproof sealing ring; 6. a placement groove; 7. a guide disc; 8. a card slot; 9. rotating the rod; 10. a guide wheel; 11. cleaning the shell; 12. cleaning the internal mold; 13. an annular collecting tank; 14. a fixed block; 15. moving the plate; 16. a limiting plate; 17. a chute.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 and 3, an exemplary embodiment of the hydraulic jack according to the present embodiment is shown.

As can be seen from the figure, the hydraulic jack comprises a cylinder body 1, a piston 2 and a double-layer dustproof sealing ring 5. Wherein the inside sliding connection of cylinder body 1 has piston 2, the inside of cylinder body 1 is provided with double-deck chromium picture layer 3, the surface of piston 2 is provided with metal chromium layer 4, the common double-deck dust seal of fixedly connected with of both sides wall 5 of double-deck chromium 3, standing groove 6 has been seted up to the inside of roof in the cylinder body 1, the inside fixedly connected with direction disc 7 of standing groove 6, draw-in groove 8 has been seted up to the inner wall of direction disc 7, two inner walls of draw-in groove 8 have dwang 9 through bearing frame swing joint, the fixed surface of dwang 9 is connected with leading wheel 10, the upper surface of cylinder body 1 is equipped with clearance mechanism.

Referring to fig. 2 and 5, the cleaning mechanism in this example includes a cleaning housing 11 slidably connected to the upper surface of the cylinder body 1, a cleaning inner mold 12 is clamped to the inner wall of the cleaning housing 11, an annular collecting tank 13 is fixedly connected to the surface of the cleaning housing 11, a fixing block 14 is fixedly connected to the upper surface of the cleaning housing 11 through a bolt, a moving plate 15 is inserted into the fixing block 14, and a limiting plate 16 is inserted into the lower surface of the moving plate 15.

Specifically, when the use time of clearance centre form 12 overlength back during the use, extract movable plate 15 from limiting plate 16 for clearance shell 11 takes out from spout 17 inside simultaneously with clearance centre form 12, later with clearance centre form 12 follow clearance shell 11 inside dismantlement out, changes it, then will clear up inside shell 11 puts into spout 17, insert movable plate 15 inside limiting plate 16, spacing to it, convenient clearance mechanism's secondary use.

Referring further to fig. 3, the inner wall of the double-layer dustproof sealing ring 5 in this example is attached to the piston 2, the guide wheel 10 is attached to the piston 2, and the cleaning inner mold 12 is attached to the piston 2.

Further, the sliding groove 17 is formed in the upper surface of the cylinder body 1, and the sliding groove 17 is matched with the cleaning shell 11.

Further, this example is connected with the pull ring at the fixed surface of cylinder body 1, and the screw hole is seted up on the surface of limiting plate 16, and one side fixed connection of limiting plate 16 is in one side of cylinder body 1.

Referring to fig. 5, the moving plate 15 in this example is L-shaped, and the inside of the stopper plate 16 is provided with a slide bar for facilitating the sliding of the moving plate 15.

Referring to fig. 4, the number of the slots 8 in this example is several, and several slots 8 are uniformly distributed in the guiding disc 7 in a circular array at equal intervals.

It is specific, during the use when piston 2 rebound, through double-deck dustproof sealing ring 5, make maximum operating pressure can not reveal, later remove piston 2 through leading wheel 10 and lead, make it can not squint, reduce piston 2 and prevent the wearing and tearing of heavy sealing ring 5 to the double-deck, and through the setting of clearance mechanism, when piston 2 rebound, with the movable plate 15 along limiting plate 16 upwards sliding, drive clearance shell 11 upwards moving, clear up piston 2 surface attached dust through clearance centre form 12, make inside piston 2 cleaner entering cylinder body 1, and the dust of being cleared up falls into annular 13 through clearance shell 11, thereby when hydraulic pressure collecting vat jack during operation, make the dust can not get into the inside of cylinder body.

The detailed description of the known functions and the known components is omitted in the specific embodiment of the disclosure, and in order to ensure the compatibility of the equipment, all the adopted operating means are consistent with the parameters of the instruments on the market.

The following is an example of the application of the hydraulic jack with a sealing structure given in this example.

Referring to fig. 1 to 5, the hydraulic jack with a sealing structure according to the present example is operated as follows;

1. during the use, the user is when piston 2 rebound, through double-deck dustproof sealing ring 5, make maximum operating pressure can not reveal, later remove piston 2 through leading wheel 10 and lead, make it can not squint, reduce piston 2 and prevent sinking the wearing and tearing of sealing ring 5 to the double-deck, and through the setting of clearance mechanism, when piston 2 rebound, with movable plate 15 along with limiting plate 16 upwards sliding, drive clearance shell 11 upwards moving, clear up piston 2 surface adhered to dust through clearance centre form 12, make inside 1 of piston 2 cleaner entering cylinder body, and the dust that is cleared up falls into in annular collecting vat 13 through clearance shell 11, thereby when hydraulic jack is worked, make the dust can not get into the inside of cylinder body.

2. After the service life of the cleaning internal mold 12 is too long, the movable plate 15 is pulled out of the limiting plate 16, the cleaning outer shell 11 and the cleaning internal mold 12 are taken out from the inside of the sliding groove 17 at the same time, then the cleaning internal mold 12 is detached from the inside of the cleaning outer shell 11 and replaced, then the cleaning outer shell 11 is placed into the sliding groove 17, the movable plate 15 is inserted into the limiting plate 16, the limiting plate is limited, and secondary use of the cleaning mechanism is facilitated.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a take seal structure's hydraulic jack, includes cylinder body (1), its characterized in that: the cylinder is characterized in that a piston (2) is slidably connected to the inside of the cylinder body (1), a double-layer chromium layer (3) is arranged inside the cylinder body (1), a metal chromium layer (4) is plated on the surface of the piston (2), double-layer dustproof sealing rings (5) are fixedly connected to two side walls of the double-layer chromium layer (3) together, a placing groove (6) is formed in the inner top wall of the cylinder body (1), a guide disc (7) is fixedly connected to the inside of the placing groove (6), a clamping groove (8) is formed in the inner wall of the guide disc (7), rotating rods (9) are movably connected to two inner walls of the clamping groove (8) through bearing seats, guide wheels (10) are fixedly connected to the surface of the rotating rods (9), and a cleaning mechanism is arranged on the upper surface of the cylinder body (1);

clearance mechanism includes sliding connection in the clearance shell (11) of cylinder body (1) upper surface, the inner wall joint of clearance shell (11) has clearance centre form (12), the fixed surface of clearance shell (11) is connected with annular collecting vat (13), the upper surface of clearance shell (11) passes through bolt fixedly connected with fixed block (14), the inside of fixed block (14) is pegged graft and is had movable plate (15), the lower surface of movable plate (15) is pegged graft and is had limiting plate (16).

2. The hydraulic jack with the sealing structure as set forth in claim 1, wherein: the upper surface of cylinder body (1) has seted up spout (17), spout (17) and clearance shell (11) looks adaptation.

3. The hydraulic jack with the sealing structure as set forth in claim 1, wherein: the inner wall of double-deck dustproof sealing ring (5) laminates with piston (2) mutually, leading wheel (10) laminates with piston (2) mutually, clearance centre form (12) laminate in piston (2).

4. The hydraulic jack with the sealing structure as set forth in claim 1, wherein: the surface of the cylinder body (1) is fixedly connected with a pull ring, the surface of the limiting plate (16) is provided with a threaded hole, and one side of the limiting plate (16) is fixedly connected to one side of the cylinder body (1).

5. The hydraulic jack with sealing structure as claimed in claim 1, wherein: the movable plate (15) is L-shaped, and a sliding rod facilitating sliding of the movable plate (15) is arranged inside the limiting plate (16).

6. The hydraulic jack with sealing structure as claimed in claim 1, wherein: the quantity of draw-in groove (8) is a plurality of, a plurality of draw-in groove (8) are the inside of annular array equidistance evenly distributed in direction disc (7).