CN218145588U - Self-locking jack - Google Patents
Self-locking jack Download PDFInfo
- Publication number
- CN218145588U CN218145588U CN202221830869.5U CN202221830869U CN218145588U CN 218145588 U CN218145588 U CN 218145588U CN 202221830869 U CN202221830869 U CN 202221830869U CN 218145588 U CN218145588 U CN 218145588U
- Authority
- CN
- China
- Prior art keywords
- cylinder body
- hydraulic
- hydraulic cylinder
- self
- pressure head
- Prior art date
- 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.)
- Active
Links
Images
Landscapes
- Actuator (AREA)
Abstract
The utility model discloses a from locking-type jack, including hydraulic cylinder body, hydraulic cylinder body's inside seal slidable mounting has the hydraulic stem, and the top of hydraulic stem extends outside the pneumatic cylinder body, the middle screw rather than coaxial settlement is installed on the top of hydraulic stem, and the top movable mounting of hydraulic stem has universal pressure head, middle screw runs through universal pressure head. According to the self-locking jack, the hydraulic cylinder body is stably arranged at a station, the universal pressure head is abutted to a workpiece needing to be lifted, the quick connector is communicated with the oil pipe, oil is injected into a cylinder cavity of the hydraulic cylinder body, the hydraulic rod is moved upwards and lifts the workpiece, the direction of the universal pressure head can be changed randomly, the universal pressure head is in closer contact with a workpiece weight, and the middle screw and the gasket are self-locked to ensure that the load is safer.
Description
Technical Field
The utility model relates to a jack technical field specifically is a from locking-type jack.
Background
The jack is light and small lifting equipment which takes a rigid jacking piece as a working device and jacks a heavy object through a top bracket or a bottom supporting claw within a small stroke. 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. The hydraulic jack is used as an intermediate medium in a hydraulic transmission system, plays a role in transferring and converting energy, and also plays a role in lubricating, preventing corrosion, cooling, flushing and the like among all components in the hydraulic system when in use. The hydraulic jack is completed by moving a piston rod up and down in an oil cylinder, the piston rod pushes a piston head to jack a load, and in the jacking process, the load is large, so that the oil cylinder is required to be supported by a high-strength cylinder body and a bottom, and in addition, the piston head on the market is usually a flat surface, so that the flexibility is far insufficient for the load with a special stress point.
It is desirable to design a self-locking jack to solve the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a from locking-type jack to solve the problem that above-mentioned background art provided.
In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a from locking-type jack, includes hydraulic cylinder body, hydraulic cylinder body's inside seal slidable mounting has the hydraulic stem, and the top of hydraulic stem extends outside the pneumatic cylinder, the top of hydraulic stem is installed rather than coaxial set for's middle screw, and the top movable mounting of hydraulic stem has universal pressure head, middle screw runs through universal pressure head.
Preferably, the side surface of the hydraulic cylinder body is connected with a quick connector, and the quick connector is communicated with an oil way in the hydraulic cylinder body.
Preferably, a pressure relief device for limiting the stroke of the hydraulic rod is mounted on the side surface of the hydraulic cylinder body, and the pressure relief device is close to the top end of the hydraulic cylinder body.
Preferably, the outer wall of the hydraulic rod is fixedly connected with a U-shaped sealing ring.
Preferably, the outer surface of the upper end of the hydraulic rod is provided with threads, and the upper end part of the hydraulic rod is in threaded connection with a self-locking nut.
Preferably, a carrying handle is fixedly connected to the side surface of the hydraulic cylinder body.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) According to the self-locking jack, the hydraulic cylinder body is stably arranged at a station, the universal pressure head is abutted to a workpiece needing to be lifted, the quick connector is communicated with the oil pipe, oil is injected into a cylinder cavity of the hydraulic cylinder body, the hydraulic rod is moved upwards and lifts the workpiece, the direction of the universal pressure head can be changed randomly, the universal pressure head is in closer contact with a workpiece weight, and the middle screw and the gasket are self-locked to ensure that the load is safer.
(2) Compared with the traditional jack, the self-locking jack can support the heavy object for a long time when oil pressure is removed, and the nut is self-locked to ensure that the load is safer, so that the self-locking jack is suitable for various large-scale projects.
(3) The self-locking jack has the advantages that the overflow function limits the stroke and has the function of protecting the jack, the self-locking jack is mainly used for occasions (such as large bridges needing time for supporting after lifting) needing to support heavy objects for a long time, when oil pressure is removed, the self-locking jack can be locked by the nut to support the heavy objects for a long time, the self-locking jack is safe and reliable, and the self-locking jack can also be used underwater for a long time.
Drawings
FIG. 1 is a perspective view of the overall structure of the present invention;
FIG. 2 is a schematic view of another perspective of the structure of the present invention;
FIG. 3 is a sectional view of the structure of the present invention;
FIG. 4 is a top view of the present invention;
fig. 5 is a side view of the structure of the present invention.
In the figure: 1. a hydraulic cylinder block; 2. a self-locking nut; 3. a hydraulic lever; 4. a middle screw; 5. a universal pressure head; 6. a quick coupling; 7. a pressure relief device; 8. a carrying handle; 9. u type sealing washer.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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. 1-5, the present invention provides the following embodiments:
example one
The utility model provides a from locking-type jack, includes hydraulic cylinder body 1, and hydraulic cylinder body 1's inside seal slidable mounting has hydraulic stem 3, and outside hydraulic cylinder body 1 was extended to hydraulic cylinder body 3's top, the middle screw 4 rather than coaxial settlement is installed on hydraulic stem 3's top, and hydraulic stem 3's top movable mounting has universal pressure head 5, and middle screw 4 runs through universal pressure head 5.
Furthermore, the side surface of the hydraulic cylinder body 1 is connected with a quick connector 6, the quick connector 6 is communicated with an oil way in the hydraulic cylinder body 1, the sealing performance is good, and the sampling high-pressure rubber pipe is connected with the quick connector 6, so that the use is convenient.
Furthermore, the outer wall of the hydraulic rod 3 is fixedly connected with a U-shaped sealing ring 9, so that the sealing performance is good and the service life is long.
The specific implementation manner of this embodiment is: the hydraulic cylinder body is stably arranged at a station, the universal pressure head is abutted to a workpiece needing to be lifted, the quick coupling is communicated with the oil pipe, oil is injected into a cylinder cavity of the hydraulic cylinder body, the hydraulic rod is moved upwards and lifts the workpiece, the direction of the universal pressure head can be changed randomly, the universal pressure head is contacted with a workpiece heavy object more closely, and the middle screw and the gasket are self-locked to ensure that the load is safer.
Example two
The utility model provides a from locking-type jack, includes hydraulic cylinder body 1, and hydraulic cylinder body 1's inside seal slidable mounting has hydraulic stem 3, and outside hydraulic cylinder body 1 was extended to hydraulic cylinder body 3's top, the middle screw 4 rather than coaxial settlement was installed on hydraulic stem 3's top, and hydraulic stem 3's top movable mounting has universal pressure head 5, and middle screw 4 runs through universal pressure head 5.
The side of the hydraulic cylinder body 1 is connected with a quick connector 6, and the quick connector 6 is communicated with an oil way in the hydraulic cylinder body 1.
The outer wall of the hydraulic rod 3 is fixedly connected with a U-shaped sealing ring 9.
The difference from the first embodiment is that the following contents are also included:
the pressure relief device 7 for limiting the stroke of the hydraulic rod 3 is installed on the side face of the hydraulic cylinder body 1, the pressure relief device 7 is close to the top end of the hydraulic cylinder body 1, pressure is safely maintained, overload is prevented, and the jack is protected to be beneficial to safe operation.
Further, the upper end surface of hydraulic stem 3 is seted up threadedly, and the upper end part threaded connection of hydraulic stem 3 has self-locking nut 2, when hydraulic stem 3 rises to the assigned height, rotates self-locking nut 2, makes self-locking nut 2 move down along hydraulic stem 3, pastes the top surface in hydraulic cylinder body 1 until self-locking nut 2, makes self-locking nut 2 lock the stroke of hydraulic stem 3, promotes the security.
Furthermore, the side surface of the hydraulic cylinder body 1 is fixedly connected with a carrying handle 8, so that the hydraulic cylinder is convenient to carry.
Those not described in detail in this specification are within the skill of the art.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (6)
1. The utility model provides a from locking-type jack, includes hydraulic cylinder body (1), its characterized in that: the inside seal slidable mounting of hydraulic cylinder body (1) has hydraulic stem (3), and the top of hydraulic stem (3) extends outside hydraulic cylinder body (1), middle screw (4) rather than coaxial settlement are installed on the top of hydraulic stem (3), and the top movable mounting of hydraulic stem (3) has universal pressure head (5), middle screw (4) run through universal pressure head (5).
2. A self-locking jack as claimed in claim 1, wherein: the side surface of the hydraulic cylinder body (1) is connected with a quick connector (6), and the quick connector (6) is communicated with an oil way in the hydraulic cylinder body (1).
3. A self-locking jack as claimed in claim 1, wherein: the side surface of the hydraulic cylinder body (1) is provided with a pressure relief device (7) for limiting the stroke of the hydraulic rod (3), and the pressure relief device (7) is close to the top end of the hydraulic cylinder body (1).
4. A self-locking jack as claimed in claim 1, wherein: the outer wall of the hydraulic rod (3) is fixedly connected with a U-shaped sealing ring (9).
5. A self-locking jack as claimed in claim 1, wherein: the outer surface of the upper end of the hydraulic rod (3) is provided with threads, and the upper end part of the hydraulic rod (3) is in threaded connection with a self-locking nut (2).
6. A self-locking jack as claimed in claim 1, wherein: the side surface of the hydraulic cylinder body (1) is fixedly connected with a lifting handle (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221830869.5U CN218145588U (en) | 2022-07-15 | 2022-07-15 | Self-locking jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221830869.5U CN218145588U (en) | 2022-07-15 | 2022-07-15 | Self-locking jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218145588U true CN218145588U (en) | 2022-12-27 |
Family
ID=84594596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221830869.5U Active CN218145588U (en) | 2022-07-15 | 2022-07-15 | Self-locking jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218145588U (en) |
-
2022
- 2022-07-15 CN CN202221830869.5U patent/CN218145588U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN218145588U (en) | Self-locking jack | |
| CN201268565Y (en) | Mobile jack screw | |
| US20040129927A1 (en) | Hydraulic jack | |
| CN201092527Y (en) | Hydraulic lifting trailer | |
| CN210762932U (en) | Hydraulic prefabricated pipe gallery turnover machine | |
| CN201850051U (en) | Deep water hydraulic shackle | |
| CN217059331U (en) | Multifunctional valve clamping and fixing table | |
| CN203570753U (en) | Safe locking device applicable for hydraulic oil cylinder | |
| CN216687274U (en) | Concentric casing jack | |
| CN216235795U (en) | Guide seat type plane jack | |
| CN209840684U (en) | Automatic locking device of vertical lower charging vacuum heating furnace bottom | |
| CN213204030U (en) | Jacking and leakage-stopping device for hydropower station maintenance gate | |
| CN201161452Y (en) | Pneumatic and manual dual-purpose press | |
| CN203237978U (en) | Hydraulic jack | |
| CN216403686U (en) | Self-locking hydraulic jack | |
| CN216403685U (en) | Hydraulic multistage jack for railway maintenance equipment | |
| CN2402659Y (en) | Hydraulic clasp stepped lifter | |
| CN217352471U (en) | Limiting and pushing device for sinking pile of offshore wind power single-pile foundation | |
| CN216687120U (en) | Transfer device for automatic welding equipment of automobile body | |
| CN213709197U (en) | Jack is used in bridge construction | |
| CN220485202U (en) | High-efficient hydraulic jack with safety protection mechanism | |
| CN217776164U (en) | Novel stretcher | |
| CN218930521U (en) | Manhole structure for corrosive liquid transportation tank truck | |
| CN213622853U (en) | Lifting pump pressure tool for diesel engine piston | |
| CN218145587U (en) | Novel quick lifting load vertical jack |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |