CN207195344U - A kind of hydraulic jack with overflow effect - Google Patents
A kind of hydraulic jack with overflow effect Download PDFInfo
- Publication number
- CN207195344U CN207195344U CN201720815996.0U CN201720815996U CN207195344U CN 207195344 U CN207195344 U CN 207195344U CN 201720815996 U CN201720815996 U CN 201720815996U CN 207195344 U CN207195344 U CN 207195344U
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- China
- Prior art keywords
- spring
- cylinder
- chamber
- accommodating chamber
- piston
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
- Actuator (AREA)
Abstract
The utility model discloses a kind of hydraulic jack with overflow effect, include oil cylinder, piston rod, piston and cylinder cap, cylinder cap is arranged at the cylinder mouth of oil cylinder, piston is arranged in the cylinder chamber of oil cylinder and cylinder chamber is divided into rodless cavity and rod chamber, piston rod one end is through piston and stretches into rodless cavity, the other end sequentially passes through and cylinder cap communicates with the external world, it is characterised in that：Overflow passage and spring accommodating chamber are provided with the piston rod, described overflow passage one end connects with rod chamber, the other end connects with spring accommodating chamber, the spring accommodating chamber connects with the rodless cavity, plug and spring are provided with the spring accommodating chamber, described plug one end contacts with the spring neck, and the other end is concordant with the piston rod end face and is contacted with the rodless cavity, and the spring afterbody contacts with the end wall of the spring accommodating chamber.It is of the present utility model have the advantages that it is simple in construction, be not easy it is stuck, do not limited and safe and reliable by fluid pressure line.
Description
Technical field
It the utility model is related to hydraulic equipment technical field, more particularly to a kind of hydraulic jack with overflow effect.
Background technology
The hydraulic jack goods weight of loading platform and required hydraulic system pressure in lifting process is directly proportional, works as loading
When platform is overweight, hydraulic system pressure rises therewith, the upset of hydraulic jack oil sealing probably at this moment occurs, hydraulic oil pump is burst
With the emergency case such as pipelines from bursting.Usual way is to install overflow valve in pipeline to realize hydraulic oil from high pressure regarding to the issue above
Pipeline flows to drain line, but such a structure of relief valve is complicated, and latus rectum is small easily to be blocked by impurity, and structure is limited etc. by pipeline and made
Can not normal work phenomenon into overflow valve.
Utility model content
The purpose of this utility model is a kind of hydraulic jack with overflow effect, to solve asking in background technology
Topic.
To achieve the above object, the technical scheme that the utility model is taken is：Comprising oil cylinder, piston rod, piston and cylinder cap,
Cylinder cap is arranged at the cylinder mouth of oil cylinder, and piston is arranged in the cylinder chamber of oil cylinder and cylinder chamber is divided into rodless cavity and rod chamber, living
Stopper rod one end is through piston and stretches into rodless cavity, and the other end communicates through cylinder cap with the external world, it is characterised in that：In the piston
Overflow passage and spring accommodating chamber are provided with bar, described overflow passage one end connects with rod chamber, and the other end accommodates with spring
Chamber is connected, and the spring accommodating chamber connects with the rodless cavity, and plug and spring are provided with the spring accommodating chamber, described stifled
First end contacts with the spring neck, and the other end is concordant with the piston rod end face and is contacted with the rodless cavity, the bullet
Spring afterbody contacts with the end wall of the spring accommodating chamber.
Further, the spring accommodates cavity gap with the spring and coordinated.
Further, the spring is fixed or movable is arranged in the spring accommodating chamber.
Further, the plug is oil resistant rubber material plug or stainless steel plug.
Operation principle of the present utility model is：When the pressure in rodless cavity rises, plug compression spring is moved rearwards, nothing
Rod cavity is got through to the overflow passage of rod chamber, is oil cylinder pressure release, until rodless cavity pressure no longer rises, so as to be embodied as hydraulic pressure
Oil cylinder overflow.
Compared with prior art, the utility model has the advantages that：
1st, by way of being let out in hydraulic jack, hydraulic system pressure overflow is realized, is not only simple in structure, and not by hydraulic pressure
The limitation of pipeline；
2nd, avoid the complicated of conventional outflow valve and easily it is stuck situations such as, the new structure with overflow mechanism
It is simple and more safe and reliable, it is less prone to and blocks or stuck situation.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is of the present utility model without plug and the structural representation of spring；
In figure：1st, oil cylinder；2nd, piston rod；3rd, piston；4th, cylinder cap；5th, rodless cavity；6th, rod chamber；7th, overflow passage；8th, bullet
Spring accommodating chamber；9th, plug；10th, spring.
Embodiment
Technological means, creation characteristic, reached purpose and effect to realize the utility model are easy to understand, below
With reference to the drawings and specific embodiments, it is expanded on further how the utility model is implemented.
As shown in figure 1, a kind of hydraulic jack with overflow effect provided by the utility model, includes oil cylinder 1, piston rod
2nd, piston 3 and cylinder cap 4, cylinder cap 4 are arranged at the cylinder mouth of oil cylinder 1, and piston 3 is arranged in the cylinder chamber of oil cylinder 1 and is divided into cylinder chamber
Rodless cavity 5 and rod chamber 6, the one end of piston rod 2 through piston 3 and stretching into rodless cavity 5, the other end sequentially pass through rod chamber 6 and
Cylinder cap 4 communicates with the external world；To avoid the pressure rise in rodless cavity 5, hydraulic jack is caused to damage, set on piston rod 2
Overflow passage 7 and spring accommodating chamber 8 with overflow effect；
Wherein, as shown in Fig. 2 the one end of overflow passage 7 connects with rod chamber 6, the other end connects with spring accommodating chamber 8, bullet
The port of spring accommodating chamber 8 connects with rodless cavity 5, as shown in figure 1, being additionally provided with spring accommodating chamber 8 excessive for getting through or closing
The plug 9 and spring 10 on flow tube road 7；
Wherein, the one end of plug 9 is connected with the neck of spring 10, and the other end is concordant with the end face of piston rod 2 and is connect with rodless cavity 5
Touch, the afterbody of spring 10 contacts with the end wall of spring accommodating chamber 8, hydraulic jack work in, when hydraulic oil in rodless cavity 5 pressure
During rise, the hydraulic oil promotion plug 9 in rodless cavity 5 moves right and compression spring 10, when plug 9 is moved across overflow pipe
During the blocking mouth on road 7, the oil circuit of overflow passage 4 is got through, and the high-pressure oil flow in rodless cavity 5 enters rod chamber 6 through overflow passage 7
Low-pressure area, until rodless cavity 5 in hydraulic fluid pressure no longer on, so as to be embodied as the overflow of hydraulic jack；When in rodless cavity 5
Hydraulic fluid pressure when no longer rising, spring 10 is moved to the left plug 9 and is allowed to return, and the oil circuit of overflow passage 4 is closed, and works as nothing
Pressure raises again in rod cavity 5, is got through again by the oil circuit of said process overflow passage 4, carries out pressure release overflow again.
As preferred embodiment of the present utility model：Spring 10 coordinates with the gap of spring accommodating chamber 8, and spring 10 can be fixed
Or in activity setting and spring accommodating chamber 8；In addition, to prevent corrosiveness of the hydraulic oil to plug 9, plug 9 can use oil resistant
Quality of rubber materials plug or stainless steel plug.
Finally illustrate, the foregoing is only preferred embodiment of the present utility model, not thereby limit of the present utility model
The scope of the claims, every equivalent structure made using the utility model specification and accompanying drawing content or equivalent flow conversion, or directly
Connect or be used in other related technical areas indirectly, be similarly included in scope of patent protection of the present utility model.
Claims (4)
1. a kind of hydraulic jack with overflow effect, described comprising oil cylinder (1), piston rod (2), piston (3) and cylinder cap (4)
Cylinder cap (4) is arranged at the cylinder mouth of the oil cylinder (1), and the piston (3) is arranged in the cylinder chamber of the oil cylinder (1) and by described in
Cylinder chamber is divided into rodless cavity (5) and rod chamber (6), and described piston rod (2) one end is through the piston (3) and stretches into rodless cavity
(5) in, the other end communicates through cylinder cap (4) with the external world, it is characterised in that：Overflow passage is provided with the piston rod (2)
(7) and spring accommodating chamber (8), described overflow passage (7) one end connect with rod chamber (6), and the other end connects with spring accommodating chamber (8)
Logical, the spring accommodating chamber (8) is connected with the rodless cavity (5), and plug (9) and bullet are provided with the spring accommodating chamber (8)
Spring (10), described plug (9) one end and the spring (10) neck contacts, the other end and the piston rod (2) end face are concordant simultaneously
Contacted with the rodless cavity (5), spring (10) afterbody contacts with the end wall of the spring accommodating chamber (8).
2. the hydraulic jack according to claim 1 with overflow effect, it is characterised in that：The spring (10) with it is described
Spring accommodating chamber (8) gap coordinates.
3. the hydraulic jack according to claim 1 with overflow effect, it is characterised in that：The spring (10) it is fixed or
It is movably arranged in the spring accommodating chamber (8).
4. the hydraulic jack according to claim 1 with overflow effect, it is characterised in that：The plug (9) is oil resistant
Quality of rubber materials plug or stainless steel plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720815996.0U CN207195344U (en) | 2017-07-07 | 2017-07-07 | A kind of hydraulic jack with overflow effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720815996.0U CN207195344U (en) | 2017-07-07 | 2017-07-07 | A kind of hydraulic jack with overflow effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207195344U true CN207195344U (en) | 2018-04-06 |
Family
ID=61785343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720815996.0U Expired - Fee Related CN207195344U (en) | 2017-07-07 | 2017-07-07 | A kind of hydraulic jack with overflow effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207195344U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113279117A (en) * | 2021-05-11 | 2021-08-20 | 福建屹立智能化科技有限公司 | Locking mechanism of mop frame |
-
2017
- 2017-07-07 CN CN201720815996.0U patent/CN207195344U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113279117A (en) * | 2021-05-11 | 2021-08-20 | 福建屹立智能化科技有限公司 | Locking mechanism of mop frame |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 86 Century Avenue, Suizhou, Hubei Province, Hubei Patentee after: Hubei Boli special automobile equipment Limited by Share Ltd Address before: No. 86 Century Avenue, Suizhou, Hubei Province, Hubei Patentee before: HUBEI BOLI ELECTROMECHANICAL CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180406 Termination date: 20200707 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |