CN204324795U - Manual hydraulic jack - Google Patents
Manual hydraulic jack Download PDFInfo
- Publication number
- CN204324795U CN204324795U CN201420802835.4U CN201420802835U CN204324795U CN 204324795 U CN204324795 U CN 204324795U CN 201420802835 U CN201420802835 U CN 201420802835U CN 204324795 U CN204324795 U CN 204324795U
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- China
- Prior art keywords
- piston
- plunger pump
- cylinder barrel
- base
- communicated
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of Manual hydraulic jack, comprise base, cylinder barrel, piston, piston rod and plunger pump, cylinder barrel and plunger pump are upside down on base, and the oil outlet of plunger pump is communicated with the seal chamber below piston, and the oil inlet of plunger pump is communicated with the seal chamber above piston, using the seal chamber below piston as pressurizing chamber, seal chamber above piston is as pressure-releasing chamber, by plunger pump, hydraulic oil is constantly pumped to pressurizing chamber in pressure-releasing chamber, promote piston upwards, simultaneously by piston rod end with wait that drawing thing is connected, the process of piston rod upward movement, realize weight traction, in use, only jack need be fixed, without the need to using other additional equipments, structure is simple, practical and convenient.
Description
Technical field
The utility model relates to hydraulic haulage equipment technology field, particularly relates to a kind of Manual hydraulic jack.
Background technology
Jack is the simplest weight-lifting equipment of a kind of lifting highly little (being less than 1m).It has mechanical type and fluid pressure type two kinds.Jack is mainly used in the department such as factories and miness, communications and transportation as Mechanical Help and other work such as lifting, support.Its light structure is firm, flexibility and reliability, and a people can carry and operate.
From principle, hydraulic jack based on principle be pascal's principle, that is: liquid pressure is everywhere consistent, like this, in the system of balance, above smaller piston, applied pressure is smaller, and on large piston, applied pressure is also larger, can keep the static of liquid like this.So by the transmission of liquid, the different pressure on different end can be obtained, so just can reach an object converted.We common to hydraulic jack be exactly make use of this principle to reach the transmission of power.
Existing jack is jacking type structure substantially, namely the chamber that the side of piston installation piston rod is corresponding is pressure-releasing chamber, and the chamber that piston does not install the side of piston rod corresponding is pressurizing chamber, in use, by plunger pump, the hydraulic oil pump in pressure-releasing chamber is delivered to pressurizing chamber, jacking weight is carried out by piston movement, if when running into the job requirements needing traction or draw high weight, just need by means of support, the object that guide rod and slide block combination realize traction or draw high, although structure is uncomplicated, but install inconvenient, also easy causing because of stent failure draws the accident generation of losing efficacy, therefore, developing a kind of jack that can realize drawing or drawing high object is this area urgent problem.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of Manual hydraulic jack, cylinder barrel and plunger pump are upside down on base, and the oil outlet of plunger pump is communicated with the seal chamber below piston, and the oil inlet of plunger pump is communicated with the seal chamber above piston, using the seal chamber below piston as pressurizing chamber, seal chamber above piston is as pressure-releasing chamber, by plunger pump, hydraulic oil is constantly pumped to pressurizing chamber in pressure-releasing chamber, promote piston upwards, simultaneously by piston rod end with wait that drawing thing is connected, the process of piston rod upward movement, realize weight traction, in use, only jack need be fixed, without the need to using other additional equipments, structure is simple, practical and convenient.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of Manual hydraulic jack, comprise base, cylinder barrel, piston, piston rod and plunger pump, described cylinder barrel is the tubular structure of one end open, its open end seals with base upper surface and docks, described piston is located in cylinder barrel, and seal bearing fit with inner wall of cylinder, described piston rod is fixed on piston lower surface, and arrange through the through hole on base, described through-hole wall is provided with the seal ring with piston rod packing bearing fit, described plunger pump is located on base upper surface, the cavity that the oil outlet of plunger pump is formed by oil circuit and piston upper surface and cylinder barrel is communicated with, the cavity that described plunger pump oil inlet is formed by oil circuit and piston lower surface and cylinder barrel and base is communicated with, described plunger pump oil outlet is provided with the second check valve, the described oil circuit end corresponding with plunger pump oil inlet is provided with the first check valve.
Described base is provided with the manual blowdown valve be communicated with the cavity of piston lower portion.
The beneficial effect adopting technique scheme to produce is: be upside down on base by cylinder barrel and plunger pump, and the oil outlet of plunger pump is communicated with the seal chamber below piston, and the oil inlet of plunger pump is communicated with the seal chamber above piston, using the seal chamber below piston as pressurizing chamber, seal chamber above piston is as pressure-releasing chamber, by plunger pump, hydraulic oil is constantly pumped to pressurizing chamber in pressure-releasing chamber, promote piston upwards, simultaneously by piston rod end with wait that drawing thing is connected, the process of piston rod upward movement, realize weight traction, in use, only jack need be fixed, without the need to using other additional equipments, structure is simple, practical and convenient.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
In the accompanying drawings: 11, cylinder barrel; 12, piston; 13, handle; 14, plunger pump; 15, the first check valve; 16, the second check valve; 17, blowdown valve; 18, shutoff valve; 19, piston rod.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Can only jacking in order to solve existing hydraulic jack, need to realize by means of additional equipment in distraction procedure, the problem of inconvenience is installed, the utility model provides one Manual hydraulic jack as shown in Figure 1, comprise base, cylinder barrel 11, piston 12, piston rod 19 and plunger pump 14, described cylinder barrel 11 is the tubular structure of one end open, its open end seals with base upper surface and docks, described piston 12 is located in cylinder barrel 11, and with cylinder barrel 11 inner wall sealing bearing fit, described piston rod 19 is fixed on piston 12 lower surface, and arrange through the through hole on base, described through-hole wall is provided with the seal ring sealing bearing fit with piston rod 19, described plunger pump 14 is located on base upper surface, the cavity that the oil outlet of plunger pump 14 is formed by oil circuit and piston upper surface and cylinder barrel 11 is communicated with, the cavity that described plunger pump 14 oil inlet is formed by oil circuit and piston lower surface and cylinder barrel 11 and base is communicated with, described plunger pump 14 oil outlet is provided with the second check valve 16, the described oil circuit end corresponding with plunger pump 14 oil inlet is provided with the first check valve 15, described base is provided with the manual blowdown valve 17 be communicated with the cavity of piston 12 bottom, the described oil circuit corresponding with plunger pump 14 oil outlet is provided with shutoff valve 18.
In embody rule process, cylinder barrel and plunger pump are upside down on base, and the oil outlet of plunger pump is communicated with the seal chamber below piston, and the oil inlet of plunger pump is communicated with the seal chamber above piston, using the seal chamber below piston as pressurizing chamber, seal chamber above piston is as pressure-releasing chamber, by plunger pump, hydraulic oil is constantly pumped to pressurizing chamber in pressure-releasing chamber, promote piston upwards, simultaneously by piston rod end with wait that drawing thing is connected, the process of piston rod upward movement, realize weight traction, in use, only jack need be fixed, without the need to using other additional equipments, structure is simple, practical and convenient.
Claims (2)
1. a Manual hydraulic jack, it is characterized in that: comprise base, cylinder barrel (11), piston (12), piston rod (19) and plunger pump (14), the tubular structure that described cylinder barrel (11) is one end open, its open end seals with base upper surface and docks, described piston (12) is located in cylinder barrel (11), and with cylinder barrel (11) inner wall sealing bearing fit, described piston rod (19) is fixed on piston (12) lower surface, and arrange through the through hole on base, described through-hole wall is provided with the seal ring sealing bearing fit with piston rod (19), described plunger pump (14) is located on base upper surface, the cavity that the oil outlet of plunger pump (14) is formed by oil circuit and piston upper surface and cylinder barrel (11) is communicated with, the cavity that described plunger pump (14) oil inlet is formed by oil circuit and piston lower surface and cylinder barrel (11) and base is communicated with, described plunger pump (14) oil outlet is provided with the second check valve (16), the described oil circuit end corresponding with plunger pump (14) oil inlet is provided with the first check valve (15).
2. Manual hydraulic jack according to claim 1, is characterized in that: described base is provided with the manual blowdown valve (17) be communicated with the cavity of piston (12) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420802835.4U CN204324795U (en) | 2014-12-18 | 2014-12-18 | Manual hydraulic jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420802835.4U CN204324795U (en) | 2014-12-18 | 2014-12-18 | Manual hydraulic jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204324795U true CN204324795U (en) | 2015-05-13 |
Family
ID=53161175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420802835.4U Expired - Fee Related CN204324795U (en) | 2014-12-18 | 2014-12-18 | Manual hydraulic jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204324795U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676318A (en) * | 2017-10-26 | 2018-02-09 | 苏州大闹天宫机器人科技有限公司 | Seesaw toy based on true and false piston |
| CN110356994A (en) * | 2019-07-11 | 2019-10-22 | 赵泉 | A kind of hand-hydraulic is very heavy to be hung |
| CN113307172A (en) * | 2021-06-29 | 2021-08-27 | 常熟通润汽车零部件股份有限公司 | Welding oil jack |
-
2014
- 2014-12-18 CN CN201420802835.4U patent/CN204324795U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676318A (en) * | 2017-10-26 | 2018-02-09 | 苏州大闹天宫机器人科技有限公司 | Seesaw toy based on true and false piston |
| CN110356994A (en) * | 2019-07-11 | 2019-10-22 | 赵泉 | A kind of hand-hydraulic is very heavy to be hung |
| CN113307172A (en) * | 2021-06-29 | 2021-08-27 | 常熟通润汽车零部件股份有限公司 | Welding oil jack |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 Termination date: 20191218 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |