CN220816119U - Hydraulic cylinder locking device and hydraulic cylinder thereof - Google Patents
Hydraulic cylinder locking device and hydraulic cylinder thereof Download PDFInfo
- Publication number
- CN220816119U CN220816119U CN202322742529.8U CN202322742529U CN220816119U CN 220816119 U CN220816119 U CN 220816119U CN 202322742529 U CN202322742529 U CN 202322742529U CN 220816119 U CN220816119 U CN 220816119U
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- China
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- hydraulic cylinder
- electromagnet
- connecting rod
- locking device
- support
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- 230000000149 penetrating effect Effects 0.000 claims description 3
- 210000005069 ears Anatomy 0.000 abstract description 5
- 102100023170 Nuclear receptor subfamily 1 group D member 1 Human genes 0.000 description 13
- 238000009434 installation Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Abstract
The hydraulic cylinder locking device comprises a pair of anchor clamps, wherein the back of each anchor clamp is elastically connected with a support through a spring, and an electromagnet is arranged on the support; when the electromagnet is electrified, the paired anchor ears are far away from the connecting rod connected to one end of the piston rod; when the electromagnet is powered off, the paired anchor ears hold the connecting rod tightly. The locking device is arranged at one end of a piston rod of the hydraulic cylinder body. The utility model provides a hydraulic cylinder locking device and a hydraulic cylinder thereof, which enable a gate to be kept in an open state in a power-off state.
Description
Technical Field
The utility model relates to the technical field of openers, in particular to a hydraulic cylinder for driving a gate to lift, and specifically relates to a hydraulic cylinder locking device and a hydraulic cylinder thereof.
Background
The hydraulic cylinder in the hydraulic hoist is supplied with oil through the hydraulic station, so that the piston rod stretches out and draws back, and the gate is lifted. When the gate is in an open state, if power failure occurs, power cannot be supplied to the hydraulic station, particularly, an oil pump in the hydraulic station cannot supply oil to the hydraulic cylinder, so that the oil pressure in the hydraulic cylinder is difficult to maintain, and the gate can automatically fall down to cause accidents.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a hydraulic cylinder locking device and a hydraulic cylinder thereof, which can ensure the stability of a gate in an opening state when a hydraulic hoist is powered off and avoid accidents.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the hydraulic cylinder locking device comprises a pair of anchor clamps, wherein the back of each anchor clamp is elastically connected with a support through a spring, and an electromagnet is arranged on the support; when the electromagnet is electrified, the paired anchor ears are far away from the connecting rod connected to one end of the piston rod; when the electromagnet is powered off, the paired anchor ears hold the connecting rod tightly.
The back of each hoop is connected with a guide rod which freely passes through a hole on the support; the spring is sleeved on the guide rod, and the two ends of the spring are respectively connected with the anchor ear and the support.
The guide rods are two, and the electromagnet is arranged on the support between the two guide rods and is opposite to the back surface of the anchor ear.
A hydraulic cylinder comprises a cylinder body, a piston rod and a piston, wherein a rear seat is fixed on the cylinder body, the other end of the piston is connected with a connecting rod penetrating through the rear seat, and a hydraulic cylinder locking device is arranged on the rear seat.
The rear seat is sequentially connected with a supporting pipe and a connecting plate, and the hydraulic cylinder locking device is arranged on the connecting plate.
The end part of the connecting rod is provided with a convex ring, and the convex ring limits the downward movement of the connecting rod.
The convex ring is wedge-shaped, and the upper end of the convex ring is a necking end.
The hoop lower extreme is provided with the chamfer.
The utility model relates to a hydraulic cylinder locking device and a hydraulic cylinder thereof, which have the following technical effects:
1) When the gate is in an open state, the electromagnet adsorbs the anchor ear to be far away from the connecting rod, and the spring is in a compressed state; if power failure occurs, the electromagnet is also powered off, so that the attraction force to the anchor ear is lost, the anchor ear compresses the connecting rod under the action of the restoring force of the spring, and the piston rod is prevented from descending under the action of static friction force, so that the gate is kept in an open state.
2) The installation of the hydraulic cylinder locking device can be completed by installing the rear seat, the supporting tube and the connecting plate at the top end of the cylinder body, and the hydraulic cylinder locking device can limit the connecting rod connected with the piston rod in time in the power-off state when the piston rod extends out.
Drawings
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:
fig. 1 is a schematic view of a hydraulic cylinder according to the present utility model.
Fig. 2 is a front cross-sectional view of a hydraulic cylinder in accordance with the present utility model.
Fig. 3 is an enlarged view at a in fig. 1.
Fig. 4 is a cross-sectional view of fig. 3.
Fig. 5 is a schematic structural view of the hydraulic hoist.
In the figure: the device comprises a hoop 1, a support 2, a spring 3, a connecting rod 4, an electromagnet 5, a guide rod 6, a cylinder 7, a piston rod 8, a rear seat 9, a support tube 10, a connecting plate 11, a convex ring 12, a chamfer 13 and a piston 14.
Detailed Description
Example 1
As shown in fig. 2-4, a hydraulic cylinder locking device is used for locking a piston rod 8 on a hydraulic cylinder to prevent the piston rod 8 from descending, and the device comprises two symmetrically arranged supports 2, wherein each support 2 is provided with one anchor ear 1, the two anchor ears 1 are symmetrically arranged and are provided with circular arc bayonets, and the bayonets are opposite and are used for clamping a connecting rod 4 fixedly connected with the piston rod 8.
As shown in fig. 3 and 4, the back of each anchor ear 1 is connected with two symmetrically arranged guide rods 6, and the guide rods 6 are horizontally and freely inserted on the support 2. The spring 3 is sleeved on the guide rod 6, and two ends of the spring 3 are respectively connected with the anchor ear 1 and the support 2. An electromagnet 5 is arranged on the side surface of the support 2, which is opposite to the anchor ear 1. When the electromagnet 5 is electrified, the hoop 1 is driven to be far away from the piston rod 8; when the electromagnet 5 is powered off, the magnetic force disappears, and the anchor ear 1 moves in opposite directions under the action of the restoring force of the spring 3 to press the connecting rod 4.
The hydraulic cylinder is supplied with oil through a hydraulic station, the hydraulic station and the electromagnet 5 are connected with the same power supply, and the on-off states of the hydraulic station and the electromagnet are the same.
When the gate is in an open state, the electromagnet 5 adsorbs the hoop 1 to be far away from the connecting rod 4, and the spring 3 is in a compressed state; if power failure occurs, the electromagnet 5 is also powered off, so that the adsorption force to the anchor ear 1 is lost, the anchor ear 1 compresses the connecting rod 4 under the action of the restoring force of the spring 3, and the piston rod 8 is prevented from descending under the action of static friction force, so that the gate is kept in an open state.
Example two
As shown in fig. 2 and 5, a hydraulic cylinder is installed at the top of a door frame and used for driving a gate to lift, and the hydraulic cylinder comprises a cylinder body 7, wherein a rear seat 9 is arranged at the rear end of the cylinder body, a piston 14 is installed inside the cylinder body, one end of the piston 14 is connected with a piston rod 8, the other end of the piston 14 is connected with a connecting rod 4 penetrating through the rear seat 9, a hydraulic cylinder locking device of the first embodiment is installed on the rear seat 9, and the specific installation structure is as follows:
The rear seat 9 is sequentially connected with a support tube 10 and a connecting plate 11, the connecting rod 4 is inserted into the support tube 10, and the support seat 2 is arranged at the upper end of the connecting plate 11.
Example III
Compared with the embodiment, the difference is that: as shown in fig. 4, the end of the connecting rod 4 is provided with a collar 12 for abutment against the anchor ear 1. When the outage appears, if the friction force of the anchor ear 1 to the connecting rod 4 is insufficient to cause the gate to fall, the convex ring 12 is abutted on the anchor ear 1 to be supported by the anchor ear 1, so that the gate is prevented from falling.
Example IV
Compared with the three phases of the embodiment, the difference is that: if the electromagnet 5 fails, when the connecting rod 4 rises, the electromagnet is blocked by the anchor ear 1, so the following design is made: the convex ring 12 is wedge-shaped, and the upper end is a necking end. The lower ends of the opposite sides of the anchor ear 1 are provided with chamfers 13. The hoop 1 can move outwards under the combined guiding action of the wedge-shaped structure of the convex ring 12 and the chamfer 13, so that the piston rod 8 rises smoothly.
Claims (8)
1. A hydraulic cylinder locking device, characterized in that: the device comprises paired anchor clamps (1), wherein the back of each anchor clamp (1) is elastically connected with a support (2) through a spring (3), and an electromagnet (5) is arranged on the support (2); when the electromagnet (5) is electrified, the paired anchor clamps (1) are far away from the connecting rod (4) connected with one end of the piston rod (8); when the electromagnet (5) is powered off, the paired anchor clamps (1) hold the connecting rod (4).
2. A hydraulic cylinder locking apparatus according to claim 1, wherein: the back of each anchor ear (1) is connected with a guide rod (6), and the guide rods (6) freely penetrate through holes in the support (2); the spring (3) is sleeved on the guide rod (6), and two ends of the spring (3) are respectively connected with the anchor ear (1) and the support (2).
3. A hydraulic cylinder locking apparatus according to claim 2, wherein: the guide rods (6) are two, and the electromagnet (5) is arranged on the support (2) between the two guide rods (6) and is opposite to the back of the anchor ear (1).
4. The utility model provides a pneumatic cylinder, includes cylinder body (7), piston rod (8), piston (14), its characterized in that: a rear seat (9) is fixed on the cylinder body (7), the other end of the piston (14) is connected with a connecting rod (4) penetrating through the rear seat (9), and a hydraulic cylinder locking device according to any one of claims 1-3 is arranged on the rear seat (9).
5. A hydraulic cylinder according to claim 4, wherein: the rear seat (9) is sequentially connected with a supporting tube (10) and a connecting plate (11), and the hydraulic cylinder locking device is arranged on the connecting plate (11).
6. A hydraulic cylinder according to claim 4, wherein: the end part of the connecting rod (4) is provided with a convex ring (12), and the convex ring (12) limits downward movement of the connecting rod (4).
7. A hydraulic cylinder according to claim 6, wherein: the convex ring (12) is wedge-shaped, and the upper end of the convex ring is a necking end.
8. A hydraulic cylinder according to claim 7, wherein: the lower end of the anchor ear (1) is provided with a chamfer (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322742529.8U CN220816119U (en) | 2023-10-12 | 2023-10-12 | Hydraulic cylinder locking device and hydraulic cylinder thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322742529.8U CN220816119U (en) | 2023-10-12 | 2023-10-12 | Hydraulic cylinder locking device and hydraulic cylinder thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220816119U true CN220816119U (en) | 2024-04-19 |
Family
ID=90675233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322742529.8U Active CN220816119U (en) | 2023-10-12 | 2023-10-12 | Hydraulic cylinder locking device and hydraulic cylinder thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220816119U (en) |
-
2023
- 2023-10-12 CN CN202322742529.8U patent/CN220816119U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |