CN113738806A - Switch trigger device for hydraulic shock absorber and hydraulic shock absorber - Google Patents
Switch trigger device for hydraulic shock absorber and hydraulic shock absorber Download PDFInfo
- Publication number
- CN113738806A CN113738806A CN202111192006.XA CN202111192006A CN113738806A CN 113738806 A CN113738806 A CN 113738806A CN 202111192006 A CN202111192006 A CN 202111192006A CN 113738806 A CN113738806 A CN 113738806A
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- China
- Prior art keywords
- operating rod
- switch
- end part
- elastic ring
- plunger
- 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.)
- Pending
Links
- 239000006096 absorbing agent Substances 0.000 title claims abstract description 22
- 230000035939 shock Effects 0.000 title claims abstract description 22
- 230000003213 activating effect Effects 0.000 claims description 17
- 239000004677 Nylon Substances 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 239000000872 buffer Substances 0.000 description 24
- 230000000694 effects Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000013016 damping Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001739 rebound effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/36—Special sealings, including sealings or guides for piston-rods
- F16F9/369—Sealings for elements other than pistons or piston rods, e.g. valves
Abstract
The present invention relates to a switch trigger device for a hydraulic shock absorber and a hydraulic shock absorber. The switch trigger device of the present invention is used in a hydraulic shock absorber including a cylinder, a plunger, and a switch having a movable contact member, and includes: an elastic ring member having a size matching that of the plunger; an operating rod disposed corresponding to the movable contact member and extending in an axial direction of the plunger; a guide stopper located above the movable contact member; and the limiting component is positioned below the guide stop block, wherein the elastic ring piece is positioned near the upper end surface of the cylinder body and sleeved outside the plunger, the guide stop block is provided with a guide through hole matched with the operating rod, the upper end part of the operating rod is fixedly arranged on the elastic ring piece, the lower end part of the operating rod downwards penetrates through the guide through hole to form a touch end part, the touch end part is provided with a touch inclined surface, the touch inclined surface gradually inclines to the outside from bottom to top from the lower end surface of the operating rod, and the limiting component is fixedly arranged on the touch end part.
Description
Technical Field
The invention relates to the technical field of hydraulic buffers, in particular to a switch triggering device for a hydraulic buffer and a hydraulic buffer comprising the switch triggering device.
Background
The hydraulic buffer is an energy-consuming buffer, and the working principle is as follows: when the hydraulic buffer is impacted by the lift car and the counterweight, the plunger moves downwards, and oil in the compression cylinder body is sprayed to the plunger cavity through the annular throttling hole. When oil passes through the annular throttling hole, because the flow cross section area is suddenly reduced, a vortex is formed, particles in liquid are mutually pulled and rubbed, kinetic energy is converted into heat to be dissipated, and therefore the kinetic energy of the elevator is consumed, and the car or the counterweight is gradually and slowly stopped. The hydraulic buffer utilizes the damping action of liquid flow to buffer the impact of the car or the counterweight, when the car or the counterweight leaves the buffer, the plunger returns upwards under the action of the return spring, and the oil flows back to the oil cylinder again to recover the normal state. Since the hydraulic shock absorber performs damping in an energy-consuming manner, there is no rebound effect. Meanwhile, due to the action of the variable rod, when the plunger is pressed down, the sectional area of the annular throttling hole is gradually reduced, so that the elevator can decelerate to be close to uniform deceleration movement. Thus, the hydraulic shock absorber has the advantage of smooth damping, and the stroke required by the hydraulic shock absorber can be reduced by half compared with a spring shock absorber under the same use conditions. The hydraulic buffer is suitable for elevators with various speeds.
The operating rod of the switch triggering device in the existing hydraulic buffer is usually installed on the top of the plunger, which requires the length of the operating rod to be equal to that of the plunger, resulting in higher cost of the triggering device. In addition, the length of the operating rod is too long, which reduces the moving stability of the operating rod.
Disclosure of Invention
The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a low-cost and highly stable switch trigger device for a hydraulic shock absorber, and a hydraulic shock absorber including the switch trigger device.
In order to achieve the purpose, the invention adopts the following technical scheme:
< first embodiment >
The present invention provides a switch activating device used in a hydraulic shock absorber including a cylinder, a plunger, and a switch provided on a side portion of an upper end of the cylinder, the switch having a stationary contact member and a movable contact member which are matched with each other, characterized by comprising: an elastic ring member having a size matching that of the plunger; an operating rod disposed corresponding to the movable contact member and extending in an axial direction of the plunger; the guide stop block is positioned above the movable contact component and is fixedly connected with the cylinder body; and the limiting component is positioned below the guide stop block, wherein the elastic ring piece is positioned near the upper end surface of the cylinder body and sleeved outside the plunger, the guide stop block is provided with a guide through hole matched with the operating rod, the upper end part of the operating rod is fixedly arranged on the elastic ring piece, the lower end part of the operating rod downwards penetrates through the guide through hole to form a touch end part, the touch end part is provided with a touch inclined surface used for touching and pressing the movable contact component, the touch inclined surface is gradually inclined towards the outer side from bottom to top from the lower end surface of the operating rod, and the limiting component is fixedly arranged on the touch end part.
The switch trigger device provided by the invention can also have the following characteristics: wherein the inclination angle of the contact pressure inclined plane is 30-45 degrees.
The switch trigger device provided by the invention can also have the following characteristics: wherein, the limiting component is a screw piece, and the contact end part is provided with a screw mounting hole matched with the screw piece.
The switch trigger device provided by the invention can also have the following characteristics: further comprising: and the mounting component is used for fixedly mounting the operating rod on the elastic ring piece.
The switch trigger device provided by the invention can also have the following characteristics: the installation component comprises an arc plate matched with the elastic ring piece in shape and a connecting flat plate fixedly connected with one end part of the arc plate, the arc plate is fixedly installed on the outer side surface of the elastic ring piece, and the upper end part of the operating rod is fixedly installed on the other end part of the connecting flat plate.
The switch trigger device provided by the invention can also have the following characteristics: wherein, the arc is connected with the elastic ring piece through the fastening screw piece, and the arc is provided with a first through hole for the fastening screw piece to pass through.
The switch trigger device provided by the invention can also have the following characteristics: wherein, another tip of connecting the flat board is equipped with the second through-hole with the operating lever assorted, and the upper end of operating lever passes the second through-hole and fixes with fastening nut spare.
The switch trigger device provided by the invention can also have the following characteristics: wherein, the flat connecting plate and the arc-shaped plate are integrally formed.
The switch trigger device provided by the invention can also have the following characteristics: wherein, the elastic ring piece is an elastic nylon ring or an elastic rubber ring.
< scheme two >
The present invention also provides an oil buffer having such features, comprising: a cylinder body; the plunger is movably arranged in the cylinder body; a switch disposed on a side portion of an upper end of the cylinder body, having a stationary contact member and a movable contact member matched with each other; and a switch trigger device for triggering the movable contact member to be connected with or disconnected from the fixed contact member, wherein the switch trigger device is the switch trigger device of the first scheme.
Action and Effect of the invention
According to the switch triggering device for the oil buffer and the oil buffer comprising the switch triggering device, the switch triggering device comprises an elastic ring piece, an operating rod, a guide stop block and a limit component, wherein the elastic ring piece is positioned near the upper end surface of a cylinder body and is sleeved outside a plunger, the guide stop block is provided with a guide through hole matched with the operating rod, the upper end part of the operating rod is fixedly arranged on the elastic ring piece, the lower end part of the operating rod downwards penetrates through the guide through hole to form a touch end part, the touch end part is provided with a touch inclined surface for touching and pressing a movable contact component, the touch inclined surface is gradually inclined outwards from bottom to top from the lower end surface of the operating rod, and the limit component is fixedly arranged on the touch end part, so that the switch can be effectively and stably triggered, and the upper end surface of the cylinder body has the blocking effect on the elastic ring piece and the guide stop block effect on the limit component, the length of the operating rod is greatly reduced, the length of the operating rod is far less than that of the operating rod arranged on the top of the plunger in the prior art, the manufacturing cost is low, and the movement is more stable.
Drawings
FIG. 1 is a schematic perspective view of an oil buffer according to an embodiment of the present invention;
fig. 2 is a schematic perspective view of a switch activating device according to an embodiment of the present invention;
FIG. 3 is an exploded assembly schematic view of a switch activating device in an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of the oil buffer in the embodiment of the present invention when the switch is in the off state; and
fig. 5 is a schematic structural diagram of the oil buffer in the embodiment of the present invention when the switch is in the closed state.
Detailed Description
The concept, specific structure and technical effects of the present invention will be further described with reference to the accompanying drawings, so as to fully understand the objects, features and effects of the switch triggering device for a hydraulic shock absorber and the hydraulic shock absorber including the switch triggering device according to the present invention.
< example >
Fig. 1 is a schematic perspective view of an oil buffer according to an embodiment of the present invention.
As shown in fig. 1, in the present embodiment, the hydraulic shock absorber 100 includes a cylinder 10, a plunger 20, a return spring (not shown), a switch 30, and a switch activating device 40.
As shown in fig. 1, the cylinder 10, the plunger 20, and the return spring together constitute a main body of the hydraulic shock absorber 100. The lower end of the plunger 20 is movably installed in the cylinder 10. The return spring is located in the cylinder 10 and has both ends connected to the cylinder 10 and the plunger 20, respectively, for moving the plunger 20 upward to return to the original position after the plunger 20 is released from the impact.
As shown in fig. 1, a switch 30 is provided on a side of an upper end of the cylinder 10 for controlling the entire hydraulic shock absorber 100 to be operated or stopped. The switch 30 has a stationary contact member (not shown) and a movable contact member 31 that are mated with each other. In the present embodiment, the movable contact member 31 is disposed along a normal direction of the cylinder 10 and the plunger 20.
Fig. 2 is a schematic perspective view of a switch activating device according to an embodiment of the present invention; fig. 3 is an exploded assembly view of the switch activating device in an embodiment of the present invention.
As shown in fig. 1 to 3, the switch triggering device 40 is used for triggering the movable contact member 31 to be connected to or disconnected from the stationary contact member, and includes an elastic ring element 41, an operating rod 42, a mounting part 43, a guide stopper 44, and a position limiting member 45.
The elastic ring member 41 has a size matching the size of the plunger 20, is fitted around the outside of the plunger 20 in an interference fit manner by its own resilience, and is located in the vicinity of the upper end surface of the cylinder 10. In this embodiment, the elastic ring member 41 is a ring made of an elastic nylon material. Of course, the elastic ring member 41 may be made of an elastic material such as elastic rubber according to actual requirements.
The operation rod 42 is provided corresponding to the movable contact member 31 and extends in the axial direction of the plunger 20. The upper end portion of the operation lever 42 is fixedly attached to the elastic ring 41, and the lower end portion thereof has a touch-pressure inclined surface 421 for touching and pressing the movable contact member 31 as a touch-pressure end portion, and the touch-pressure inclined surface 421 is inclined from the lower end surface of the operation lever 42 gradually toward the outside of the operation lever 42 from bottom to top. In the present embodiment, the inclined angle of the touch inclined plane 421 with respect to the axial direction of the operation rod 42 is 30 to 45 °, which has a good touch effect.
The mounting member 43 is used to fixedly mount the operation rod 42 on the elastic ring 41, and includes an arc plate 431 and a connecting plate 432.
The arc plate 431 has a shape matching the shape of the elastic ring member 41, and is fixedly mounted on the outer side surface of the elastic ring member 41 by two fastening screw members 431 a. The arc plate 431 is provided with a first through hole 431b through which the fastening screw member 431a passes, the elastic ring member 41 is provided with a screw hole 41a matched with the fastening screw member 431a, and the end of the fastening screw member 431a passes through the first through hole 431b and is fastened and installed in the screw hole 41 a. In this embodiment, a washer 431c is further provided between the fastening screw member 431a and the arc plate 431.
One end of the connecting plate 432 is fixedly connected to the outer side of the arc plate 431 in an integrally formed manner, and the other end is provided with a second through hole 432a matching with the upper end of the operation rod 42. The upper end portion of the operating rod 42 is a threaded boss end portion of a boss having an external thread, passes upward through the second through hole 432a and is fixed with a fastening nut member 432 b. In this embodiment, a spacer 432c is further provided between the fastening nut member 432b and the connecting flat plate 432.
The guide stopper 44 is located above the movable contact member 31 and fixedly connected to the cylinder 10, and has a guide through hole 441 matched with the operation rod 42. The lower end portion (i.e., the touch end portion) of the operation rod 42 passes downward through the guide through hole 441 and protrudes out of the lower end surface of the guide stopper 44.
The stopper member 45 is located below the guide stopper 44 and is fixedly provided on the touch end portion of the operation lever 42. In this embodiment, the position-limiting member 45 is a screw member, and the pressing end portion is provided with a screw mounting hole (not shown) matching with the screw member.
FIG. 4 is a schematic structural diagram of the oil buffer in the embodiment of the present invention when the switch is in the off state; fig. 5 is a schematic structural diagram of the oil buffer in the embodiment of the present invention when the switch is in the closed state.
In the present embodiment, as shown in fig. 4 and 5, the working principle of the hydraulic shock absorber 100 is:
when the oil buffer is stressed, the plunger 20 moves downwards, the elastic ring piece 41 and the operating rod 42 are driven to move downwards by virtue of the friction force between the plunger 20 and the elastic ring piece 41, and the contact inclined plane 421 of the operating rod 42 contacts and presses the movable contact member 31 at the moment, so that the movable contact member 31 is communicated with the static contact member, and the switch is closed; then, the plunger 20 continues to move downward, and the elastic ring member 41 stays at the upper end surface of the cylinder 10 due to the blocking action of the cylinder 10.
After the oil buffer is released and stressed, the plunger 20 moves upwards under the action of the return spring, and drives the elastic ring element 41 and the operating rod 42 to move upwards, and at the moment, the contact pressure inclined plane 421 of the operating rod 42 is separated from the movable contact member 31, so that the movable contact member 31 is separated from the fixed contact member, and the switch is disconnected; then, the plunger 20 continues to move upward, and the elastic ring 41 stays at a position where the stopper member 45 is in contact with the lower end surface of the guide stopper 44 due to the stopper action of the guide stopper 44 against the stopper member 45.
Effects and effects of the embodiments
According to the switch triggering device for the oil buffer and the oil buffer comprising the switch triggering device related by the embodiment, because the switch triggering device comprises the elastic ring piece, the operating rod, the guide stopping block and the limiting component, the elastic ring piece is positioned near the upper end surface of the cylinder body and is sleeved outside the plunger, the guide stopping block is provided with the guide through hole matched with the operating rod, the upper end part of the operating rod is fixedly arranged on the elastic ring piece, the lower end part of the operating rod downwards passes through the guide through hole to form the touch end part, the touch end part is provided with the touch inclined plane for touching and pressing the movable contact component, the touch inclined plane is gradually inclined outwards from bottom to top from the lower end surface of the operating rod, and the limiting component is fixedly arranged on the touch end part, the embodiment not only can effectively and stably trigger the switch, but also has the blocking effect on the elastic ring piece and the limiting component by the guide stopping block at the upper end surface of the cylinder body, the length of the operating rod is greatly reduced, the length of the operating rod is far less than that of the operating rod arranged on the top of the plunger in the prior art, the manufacturing cost is low, and the movement is more stable.
In addition, because the installation component is used for fixedly installing the operating rod on the elastic ring piece, the installation component comprises an arc plate matched with the shape of the elastic ring piece and a connecting flat plate fixedly connected with the arc plate at one end part, the arc plate is fixedly installed on the outer side surface of the elastic ring piece, the upper end part of the operating rod is fixedly installed on the other end part of the connecting flat plate, the operating rod can be firmly installed on the elastic ring piece, and the installation component is simple in structure and convenient to operate.
The above embodiments are preferred examples of the present invention, and are not intended to limit the scope of the present invention.
Claims (10)
1. A switch activating device employed in a hydraulic shock absorber including a cylinder, a plunger, and a switch provided on a side portion of an upper end of the cylinder, the switch having a stationary contact member and a movable contact member that are mated with each other, comprising:
an elastic ring member having a size matching the size of the plunger;
an operating rod disposed corresponding to the movable contact member and extending in an axial direction of the plunger;
the guide stop block is positioned above the movable contact component and is fixedly connected with the cylinder body; and
a stop member located below the guide stopper,
wherein the elastic ring piece is positioned near the upper end surface of the cylinder body and sleeved outside the plunger,
the guide stop block is provided with a guide through hole matched with the operating rod,
the upper end part of the operating rod is fixedly arranged on the elastic ring piece, the lower end part of the operating rod downwards passes through the guide through hole to form a touch end part,
the touch end part is provided with a touch inclined plane for touching and pressing the movable contact component, the touch inclined plane is gradually inclined outwards from the lower end face of the operating rod from bottom to top,
the limiting component is fixedly arranged on the contact end part.
2. The switch activating device according to claim 1, wherein:
wherein the inclination angle of the contact pressure inclined plane is 30-45 degrees.
3. The switch activating device according to claim 1, wherein:
wherein the limiting component is a screw component,
the contact end part is provided with a screw mounting hole matched with the screw piece.
4. The switch activating device according to claim 1, further comprising:
and the mounting component is used for fixedly mounting the operating rod on the elastic ring element.
5. The switch activating device according to claim 4, wherein:
wherein the mounting part comprises an arc-shaped plate matched with the elastic ring piece in shape and a connecting flat plate with one end fixedly connected with the arc-shaped plate,
the arc-shaped plate is fixedly arranged on the outer side surface of the elastic ring piece,
the upper end part of the operating rod is fixedly arranged on the other end part of the connecting flat plate.
6. The switch activating device according to claim 5, wherein:
wherein the arc-shaped plate is connected with the elastic ring piece through a fastening screw piece,
the arc-shaped plate is provided with a first through hole for the fastening screw to pass through.
7. The switch activating device according to claim 5, wherein:
wherein, the other end of the connecting flat plate is provided with a second through hole matched with the operating rod,
the upper end part of the operating rod penetrates through the second through hole and is fixed by a fastening nut piece.
8. The switch activating device according to claim 1, wherein:
wherein, the connection flat plate and the arc plate are integrally formed.
9. The switch activating device according to claim 1, wherein:
wherein, the elastic ring piece is an elastic nylon ring or an elastic rubber ring.
10. A hydraulic shock absorber, comprising:
a cylinder body;
the plunger is movably arranged in the cylinder body;
a switch disposed on a side of an upper end of the cylinder body, having a stationary contact member and a movable contact member matched with each other; and
a switch trigger device for triggering the movable contact member to be connected with or disconnected from the stationary contact member,
wherein the switch activating device is the switch activating device according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111192006.XA CN113738806A (en) | 2021-10-13 | 2021-10-13 | Switch trigger device for hydraulic shock absorber and hydraulic shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111192006.XA CN113738806A (en) | 2021-10-13 | 2021-10-13 | Switch trigger device for hydraulic shock absorber and hydraulic shock absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113738806A true CN113738806A (en) | 2021-12-03 |
Family
ID=78726499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111192006.XA Pending CN113738806A (en) | 2021-10-13 | 2021-10-13 | Switch trigger device for hydraulic shock absorber and hydraulic shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113738806A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201301148Y (en) * | 2008-10-21 | 2009-09-02 | 河北东方富达机械有限公司 | Oil pressure damper |
| JP2011213484A (en) * | 2010-04-02 | 2011-10-27 | Mitsubishi Electric Corp | Shock absorber for elevator |
| CN202164000U (en) * | 2011-07-04 | 2012-03-14 | 河北东方富达机械有限公司 | Oil buffer |
| CN106144829A (en) * | 2016-08-04 | 2016-11-23 | 广东精创机械制造有限公司 | The signal of a kind of elevator oil buffer triggers device |
-
2021
- 2021-10-13 CN CN202111192006.XA patent/CN113738806A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201301148Y (en) * | 2008-10-21 | 2009-09-02 | 河北东方富达机械有限公司 | Oil pressure damper |
| JP2011213484A (en) * | 2010-04-02 | 2011-10-27 | Mitsubishi Electric Corp | Shock absorber for elevator |
| CN202164000U (en) * | 2011-07-04 | 2012-03-14 | 河北东方富达机械有限公司 | Oil buffer |
| CN106144829A (en) * | 2016-08-04 | 2016-11-23 | 广东精创机械制造有限公司 | The signal of a kind of elevator oil buffer triggers device |
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Application publication date: 20211203 |