CN210236969U - Double-acting mechanical self-locking hydraulic jack - Google Patents
Double-acting mechanical self-locking hydraulic jack Download PDFInfo
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- CN210236969U CN210236969U CN201920550711.4U CN201920550711U CN210236969U CN 210236969 U CN210236969 U CN 210236969U CN 201920550711 U CN201920550711 U CN 201920550711U CN 210236969 U CN210236969 U CN 210236969U
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Abstract
The utility model discloses a two effect machinery auto-lock hydraulic jack, including cylinder body, cylinder bottom, piston rod, lock nut, upper cover and saddle, the bottom and the cylinder bottom of cylinder body are connected, and the top of this cylinder body is inside to be connected with the upper cover through the screw thread, the piston rod sets up in the cylinder body, and the top and the saddle of this piston rod are connected, and the top outside of aforementioned piston rod is connected with front end nut, lock nut passes through the threaded sleeve and establishes outside the cylinder body, and cylinder body bottom both sides are equipped with pole chamber hydraulic fluid port and rodless chamber hydraulic fluid port, be equipped with the oil duct that is used for the piston rod to descend on the inner wall of cylinder body, this oil duct and pole. The equipment has the advantages of convenient operation, safety, reliability, small volume and low body height.
Description
Technical Field
The utility model belongs to the technical field of hydraulic pressure machinery, especially, relate to a two effect machinery auto-lock hydraulic jack.
Background
If the hydraulic valve locks hydraulic oil, the hydraulic jack has the problems of internal leakage of the hydraulic valve and internal leakage of the hydraulic jack seal, and the jack can slowly slide down. The traditional mechanical self-locking jack has two modes:
1. the spring is easy to fatigue and lose efficacy, the resetting speed is slow and the debugging is inconvenient;
2. the double-acting jack has the advantages that the double-acting jack is high in machining precision requirement, complex in process, high in assembly difficulty, high in failure rate and large in size of a jack with the same tonnage.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides a double-acting mechanical self-locking hydraulic jack, which has the advantages of convenient operation, safety, reliability, small volume and low body height.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a two effect machinery auto-lock hydraulic jack, includes cylinder body, cylinder bottom, piston rod, lock nut, upper cover and saddle, the bottom and the cylinder bottom of cylinder body are connected, and the top of this cylinder body is inside to be connected with the upper cover through the screw thread, the piston rod sets up in the cylinder body, and the top and the saddle of this piston rod are connected, and the top outside of aforementioned piston rod is connected with the front end nut, lock nut establishes outside the cylinder body through the screw thread cover, and cylinder body bottom both sides are equipped with pole chamber hydraulic fluid port and rodless chamber hydraulic fluid port, be equipped with the oil duct that is used for the piston rod to descend on the inner wall of cylinder body.
In the technical scheme, at least two symmetrical rotary deflector rods are arranged on the outer wall of the locking nut.
In the above technical scheme, the top end of the upper cover is provided with at least two symmetrical bolt holes.
In the technical scheme, the top end of the piston rod is an arc concave surface, and the bottom surface of the saddle is an arc convex surface matched with the bottom surface of the saddle.
In the technical scheme, the saddle is provided with an integrated pressure sensor.
The utility model has the advantages that: the device is convenient to operate, safe, reliable, small in size and low in body height, the locking nut is installed on the outer wall of the cylinder body, the guide of the piston rod is not influenced, the nut at the front end of the piston rod serves as a locking support, and the oil port of the rod cavity is led to the lower portion of the cylinder body through the oil duct on the inner wall of the cylinder body, so that the outside of the cylinder body is avoided, and the mechanical locking is not influenced.
Drawings
Fig. 1 is a schematic sectional view of the present invention.
Wherein: 1. the hydraulic cylinder comprises a cylinder body, 2 piston rods, 3 locking nuts, 4 upper covers, 5 saddles, 6 cylinder bottoms, 7 rotating deflector rods, 8 front end nuts, 9 rod cavity oil ports, 10 rodless cavity oil ports and 11 bolt holes.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, a double-acting mechanical self-locking hydraulic jack includes a cylinder body 1, a cylinder bottom 6, a piston rod 2, a lock nut 3, an upper cover 4 and a saddle 5, the bottom end of the cylinder body 1 is connected with the cylinder bottom 6, the top end of the cylinder body 1 is connected with the upper cover 4 through threads, the piston rod 2 is arranged in the cylinder body 1, the top end of the piston rod 2 is connected with the saddle 5, the top end outer side of the piston rod 2 is connected with a front end nut 8, the lock nut 3 is sleeved outside the cylinder body 1 through threads, a rod cavity oil port 9 and a rodless cavity oil port 10 are arranged on two sides of the bottom of the cylinder body 1, an oil duct for descending the piston rod 2 is arranged on the inner wall of the cylinder body 1, and the.
In the above technical scheme, at least two symmetrical rotary shift levers 7 are arranged on the outer wall of the locking nut 3. The locking nut 3 drives the locking nut 3 to rotate by rotating the shift lever 7, so that the front end nut 8 at the upper end of the piston rod 2 is locked, and the piston rod 2 is locked at the same time.
In the above technical solution, at least two symmetrical bolt holes 11 are arranged at the top end of the upper cover 4. The bolt holes 11 facilitate that when the upper cover 4 is assembled, two bolts are screwed in firstly, and then the upper cover 4 is screwed into the cylinder body 1; and after the upper cover 4 is assembled, the bolt is unscrewed.
In the technical scheme, the top end of the piston rod 2 is an arc concave surface, and the bottom surface of the saddle 5 is an arc convex surface matched with the bottom surface.
In the above technical solution, an integrated pressure sensor (not shown) is provided on the saddle 5. And the load of the jack is monitored in real time through the integrated pressure sensor.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.
Claims (5)
1. A double-acting mechanical self-locking hydraulic jack is characterized in that: including cylinder body, cylinder bottom, piston rod, lock nut, upper cover and saddle, the bottom and the cylinder bottom of cylinder body are connected, and the top of this cylinder body is inside to be connected with the upper cover through the screw thread, the piston rod sets up in the cylinder body, and the top and the saddle of this piston rod are connected, and the top outside of aforementioned piston rod is connected with the front end nut, lock nut establishes outside the cylinder body through the screw thread cover, and cylinder body bottom both sides are equipped with pole chamber hydraulic fluid port and rodless chamber hydraulic fluid port, be equipped with the descending oil duct that is used for the piston rod on the inner wall of cylinder body, this oil duct and pole chamber.
2. A double acting mechanical self locking hydraulic jack as claimed in claim 1, wherein: and at least two symmetrical rotary deflector rods are arranged on the outer wall of the locking nut.
3. A double acting mechanical self locking hydraulic jack as claimed in claim 1, wherein: the top end of the upper cover is provided with at least two symmetrical bolt holes.
4. A double acting mechanical self locking hydraulic jack as claimed in claim 1, wherein: the top end of the piston rod is an arc concave surface, and the bottom surface of the saddle is an arc convex surface matched with the bottom surface of the piston rod.
5. A double acting mechanical self locking hydraulic jack according to claim 1 or 4, wherein: and an integrated pressure sensor is arranged on the saddle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920550711.4U CN210236969U (en) | 2019-04-22 | 2019-04-22 | Double-acting mechanical self-locking hydraulic jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920550711.4U CN210236969U (en) | 2019-04-22 | 2019-04-22 | Double-acting mechanical self-locking hydraulic jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210236969U true CN210236969U (en) | 2020-04-03 |
Family
ID=69967578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920550711.4U Active CN210236969U (en) | 2019-04-22 | 2019-04-22 | Double-acting mechanical self-locking hydraulic jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210236969U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114151408A (en) * | 2021-12-03 | 2022-03-08 | 张家港赫斯曼液压设备有限公司 | Single-rod self-locking type double-acting hydraulic actuator |
-
2019
- 2019-04-22 CN CN201920550711.4U patent/CN210236969U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114151408A (en) * | 2021-12-03 | 2022-03-08 | 张家港赫斯曼液压设备有限公司 | Single-rod self-locking type double-acting hydraulic actuator |
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