CN213870528U - Manual self-locking oil cylinder - Google Patents
Manual self-locking oil cylinder Download PDFInfo
- Publication number
- CN213870528U CN213870528U CN202022852655.5U CN202022852655U CN213870528U CN 213870528 U CN213870528 U CN 213870528U CN 202022852655 U CN202022852655 U CN 202022852655U CN 213870528 U CN213870528 U CN 213870528U
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- cylinder
- control box
- piston rod
- rack
- turntable
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- Expired - Fee Related
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- 238000009776 industrial production Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000000844 transformation Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
本实用新型涉及一种手动自锁式油缸。该装置包括缸筒，缸筒内插接有活塞杆，缸筒外表面中部设置有控制部件，控制部件包括有控制箱，控制箱前侧表面上铰接有转盘，转盘经转动轴与控制箱铰接，转动轴上套接有齿轮，控制箱内顶面与内底面上均设置有滑轨，各滑轨上均滑动连接有齿条，控制箱侧面上均开设有开口，对应齿条端头均连接有连接杆，连接杆上设置有棘爪，位于各棘爪上方的连接杆上还设置有弹簧片，位于缸筒外的活塞杆自由端固接有连接板，连接板下表面上连接有竖杆，各竖杆表面上均设置有棘齿，通过转动转盘，能够使活塞杆停止运动，形成自锁，防止活塞杆在缸筒内发生骤降，与缸筒底部产生碰撞，该装置适用于工业生产中，具有良好的实用性。
The utility model relates to a manual self-locking oil cylinder. The device includes a cylinder, a piston rod is inserted into the cylinder, a control part is arranged in the middle of the outer surface of the cylinder, the control part includes a control box, a turntable is hinged on the front side surface of the control box, and the turntable is hinged with the control box through a rotating shaft , the rotating shaft is sleeved with gears, the inner top surface and inner bottom surface of the control box are provided with slide rails, each slide rail is slidably connected with a rack, the side of the control box is provided with openings, and the corresponding rack ends are A connecting rod is connected, the connecting rod is provided with a pawl, the connecting rod located above each pawl is also provided with a spring sheet, the free end of the piston rod located outside the cylinder is fixed with a connecting plate, and the lower surface of the connecting plate is connected with a connecting plate. The vertical rods are provided with ratchet teeth on the surface of each vertical rod. By rotating the turntable, the piston rod can be stopped, forming self-locking, preventing the piston rod from falling sharply in the cylinder barrel and colliding with the bottom of the cylinder barrel. This device is suitable for In industrial production, it has good practicability.
Description
Technical Field
The utility model belongs to the technical field of the hydro-cylinder, especially, relate to a manual from locking-type hydro-cylinder.
Background
The prior Chinese patent database discloses a patent named as a shifting cylinder, wherein the application number is CN201721403009.2, the application date is 20171027, the grant notice number is CN207486030U, the grant notice date is 20180612, and the shifting cylinder is arranged on one side of a shifting fork; the gear shifting oil cylinder comprises an oil cylinder body, a piston and a piston shaft; the middle of the oil cylinder body is provided with a shaft channel running through the length direction, and the shaft channel is matched with the piston shaft; the oil cylinder body is provided with a first oil port and a second oil port; the first oil port and the second oil port are respectively communicated with the shaft channel; the piston is fixedly sleeved on a corresponding piston shaft between the first oil inlet and the second oil port; one end of the piston shaft is connected with a shifting fork, a shifting fork shaft extends to one side of the shifting fork in the axial direction of the piston, the piston shaft and the shifting fork shaft are integrally manufactured, and the shifting fork shaft is connected with the shifting fork; a gear shifting device and an anti-gear-off device are arranged on one side, far away from the shifting fork, of the gear shifting oil cylinder, and the gear shifting device and the anti-gear-off device are staggered; the anti-blocking device comprises an anti-blocking through hole arranged in the oil cylinder body, a blocking block arranged in the anti-blocking through hole and a concave groove arranged on the piston shaft; the length of concave strip groove and gearshift scope looks adaptation of gearshift, its weak point lies in: when the hydro-cylinder passes through the hydraulic fluid port oiling, the piston rod atress stretches out or the indentation cylinder body, produces thrust or pulling force, drives the piston rod and removes, has the possibility of suddenly dropping at the removal in-process, can take place the striking with the cylinder bottom, has certain limitation.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is that current hydro-cylinder lacks necessary self-lock device, has the possibility of sudden drop, in order to improve its weak point, the utility model provides a manual from locking-type hydro-cylinder.
In order to achieve the purpose, the utility model is realized by the following technical proposal:
a manual self-locking oil cylinder comprises a cylinder barrel, a piston rod is inserted in the cylinder barrel, a control part is arranged in the middle of the outer surface of the cylinder barrel and comprises a control box connected with the cylinder barrel into a whole, a rotary table is hinged to the front side surface of the control box and hinged to the control box through a rotary shaft, a gear is sleeved on the rotary shaft in the control box, horizontal slide rails are arranged on the inner top surface and the inner bottom surface of the control box respectively, racks are connected on the slide rails in a sliding manner, the top of the gear is connected with one rack in a meshing manner, the bottom of the gear is connected with the other rack in a meshing manner, openings are formed in the corresponding side surfaces of the control box opposite to the racks respectively, connecting rods are connected to the ends of the corresponding racks at the openings respectively, pawls are arranged on the vertical connecting rods, the pawls of the pawls are arranged towards the corresponding openings, and spring pieces are further arranged on the connecting rods above the pawls, the spring leaf is contradicted on corresponding pawl upper surface, and the piston rod free end that is located the cylinder outside is solid joint has the connecting plate, be connected with the montant on the connecting plate lower surface, each montant towards corresponding open-ended all is provided with on the surface with pawl complex ratchet.
The utility model discloses the during operation, through the carousel outside the rotation control box, drive the gear revolve in the control box, the gear makes each rack orientation that is located top and below in the control box move towards the opening part that corresponds, make pawl on the connecting rod of each rack and the ratchet joint that corresponds, thereby prevent the whereabouts that lasts of piston rod, when the piston rod needs to go up, because the setting of spring leaf, maintain the contact between pawl and the ratchet, produce certain resistance, make the piston rod more stable during the rising movement.
Compared with the prior art, the beneficial effects of the utility model are that: due to the arrangement of the control part, the piston rod can stop moving by rotating the rotary disc to form self-locking, so that the piston rod is prevented from suddenly dropping in the cylinder barrel and colliding with the bottom of the cylinder barrel, the stability of the device is improved, and the device is suitable for industrial production and has good practicability.
The rotary plate is connected with a rotary handle.
The free end of the rotating handle is provided with a through hole, the outer surfaces of the control boxes positioned at two sides of the rotating disc are provided with pin holes, and the through hole is in pin joint with any pin hole through a pin shaft. The stability between the rack and the gear is improved due to the matching arrangement of the pin shaft, the pin hole and the through hole.
The free end of the piston rod positioned outside the cylinder is connected with an earring.
An oil inlet communicated with the cylinder barrel is formed in the side face of the bottom of the cylinder barrel, and an oil outlet communicated with the cylinder barrel is formed in the top of the cylinder barrel.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the control part in fig. 1.
In the figure: the hydraulic cylinder comprises a cylinder barrel 1, a piston rod 2, a control box 3, a rotary table 4, a gear 5, a sliding rail 6, a rack 7, an opening 8, a connecting rod 9, a pawl 10, a spring leaf 11, a connecting plate 12, a vertical rod 13, a ratchet 14, a rotating handle 15, a through hole 16, a pin hole 17, an earring 18, an oil inlet 19 and an oil outlet 20.
Detailed Description
The technical solution of the present application will be further described and explained with reference to the accompanying drawings and embodiments.
As shown in fig. 1-2, the manual self-locking oil cylinder comprises a cylinder barrel 1, a piston rod 2 is inserted in the cylinder barrel 1, a control part is arranged in the middle of the outer surface of the cylinder barrel 1, the control part comprises a control box 3 connected with the cylinder barrel 1 into a whole, a rotary table 4 is hinged on the front side surface of the control box 3, the rotary table 4 is hinged with the control box 3 through a rotary shaft, a gear 5 is sleeved on the rotary shaft in the control box 3, horizontal sliding rails 6 are arranged on the inner top surface and the inner bottom surface of the control box 3, a rack 7 is connected on each sliding rail 6 in a sliding way, the top of the gear 5 is meshed with one rack 7, the bottom of the gear 5 is meshed with the other rack 7, an opening 8 is arranged on the corresponding side surface of the control box 3 opposite to each rack 7, a connecting rod 9 is connected at the end of the corresponding rack 7 at each opening 8, a pawl 10 is arranged on the vertical connecting rod 9, the claw part of each pawl 10 is towards the corresponding opening 8 setting, still is provided with spring leaf 11 on the connecting rod 9 that is located each pawl 10 top, and spring leaf 11 is contradicted on corresponding pawl 10 upper surface, and the free end of the piston rod 2 that is located outside the cylinder 1 has connect firmly connecting plate 12, is connected with montant 13 on the connecting plate 12 lower surface, and each montant 13 towards corresponding opening 8 all is provided with on the surface with pawl 10 complex ratchet 14. The rotary plate 4 is connected with a rotary handle 15. The free end of the rotating handle 15 is provided with a through hole 16, the outer surface of the control box 3 positioned at two sides of the rotating disc 4 is provided with a pin hole 17, and the through hole 16 is connected with any pin hole 17 through a pin shaft. The matching arrangement of the pin shaft, the pin hole 17 and the through hole 16 improves the stability between the rack 7 and the gear 5. The free end of the piston rod 2 located outside the cylinder 1 is connected with an ear ring 18. An oil inlet 19 communicated with the cylinder barrel 1 is arranged on the side surface of the bottom of the cylinder barrel 1, and an oil outlet 20 communicated with the cylinder barrel 1 is arranged on the top of the cylinder barrel 1.
During operation, through rotating the carousel 4 outside the control box 3, drive the gear 5 rotation in the control box 3, gear 5 makes each rack 7 that is located the top and below in the control box 3 move towards corresponding opening 8 department, make pawl 10 on the connecting rod 9 of each rack 7 and the ratchet 14 joint that corresponds, thereby prevent the continuation whereabouts of piston rod 2, when piston rod 2 needs to rise, because the setting of spring leaf 11, maintain the contact between pawl 10 and the ratchet 14, produce certain resistance, make piston rod 2 more stable when rising the motion.
The present invention is not limited to the above embodiments, and based on the technical solutions disclosed in the present invention, those skilled in the art can make some replacements and transformations for some technical features without creative labor according to the disclosed technical contents, and these replacements and transformations are all within the protection scope of the present invention.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022852655.5U CN213870528U (en) | 2020-12-02 | 2020-12-02 | Manual self-locking oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022852655.5U CN213870528U (en) | 2020-12-02 | 2020-12-02 | Manual self-locking oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213870528U true CN213870528U (en) | 2021-08-03 |
Family
ID=77040966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022852655.5U Expired - Fee Related CN213870528U (en) | 2020-12-02 | 2020-12-02 | Manual self-locking oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213870528U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4176703A1 (en) * | 2021-11-05 | 2023-05-10 | CNH Industrial Belgium NV | Piston lock system for agricultural equipment |
-
2020
- 2020-12-02 CN CN202022852655.5U patent/CN213870528U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4176703A1 (en) * | 2021-11-05 | 2023-05-10 | CNH Industrial Belgium NV | Piston lock system for agricultural equipment |
| US12279557B2 (en) | 2021-11-05 | 2025-04-22 | Cnh Industrial America Llc | Piston lock system for agricultural equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210803 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |