CN203486700U - Hydraulic buffering device - Google Patents
Hydraulic buffering device Download PDFInfo
- Publication number
- CN203486700U CN203486700U CN201320641742.3U CN201320641742U CN203486700U CN 203486700 U CN203486700 U CN 203486700U CN 201320641742 U CN201320641742 U CN 201320641742U CN 203486700 U CN203486700 U CN 203486700U
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- China
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- plunger
- cylinder body
- spring
- damping device
- hydraulic
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- Fluid-Damping Devices (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The utility model discloses a hydraulic buffering device which comprises a baseplate, a cylinder body, a plunger, a top board component, a spring base and a spring, wherein the cylinder body is fixedly arranged on the baseplate; the top board component is fixedly arranged on the top of the plunger; the bottom part of the plunger extends inside the cylinder body; the spring base is fixedly arranged on the top of the cylinder body; the spring is sleeved on the plunger; the lower end of the spring is abutted against the spring base; the upper end of the spring is abutted against the top board component; a travel switch is mounted on the outer side of the cylinder body; a switch contact rod, which can synchronously move up and down along with the plunger and can trigger the travel switch when moving downwards, is mounted on the top board component. The hydraulic buffering device is characterized in that an oil gauge rod capable of measuring the amount of oil inside the cylinder body is mounted on the baseplate. The hydraulic buffering device has the advantages as follows: because the hydraulic buffering device is provided with the oil gauge rod, the amount of oil inside the cylinder body can be adjusted according to the measured oil amount, so that the amount of oil inside the cylinder body can be kept in an optimal range, and the hydraulic buffering device is guaranteed to be in an optimal work state.
Description
Technical field
The utility model relates to the safety guard of elevator, especially relates to a kind of hydraulic damping device.
Background technology
Water bumper is arranged on elevator hoistways bottom, when lift car or counterweight fall, can play last buffering, stop and protective effect, in order to avoid car directly hits at the end.Existing water bumper structure is all similar, all comprises pressure cylinder, plunger, adjust bar, end cap, upper spring seat, plunger base fixed knot stem bar, and flow bean choke matches with adjust bar.When water bumper is subject to lift car or counterweight shock, upper spring seat, end cap, plunger glide, fluid enters in plunger from flow bean choke, Compress Spring is compressed, under plunger, slide pressing force increases, switch is made bar and is glided with upper spring seat, and contact switch contact is out of service thereby switch open is controlled lift car.Although existing water bumper is generally difficult for producing leakage of oil, draining phenomenon, after permanent use, the oil mass in cylinder body still can reduce to some extent, and then affects the work efficiency of water bumper.Therefore,, in order to make water bumper in optimum Working, need to the oil mass in cylinder body be measured aperiodically and be adjusted.Yet existing various water bumpers are all without oil mass testing agency, thereby cannot the oil mass in cylinder body be detected.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned prior art present situation, and a kind of hydraulic damping device that can detect oil mass in cylinder is provided.
The utility model solves the problems of the technologies described above adopted technical scheme: this hydraulic damping device, comprise base plate, cylinder body, plunger, top plate member, spring perch and spring, described cylinder body is fixed on base plate, described top plate member is fixed on the top of plunger, the bottom of described plunger is stretched in cylinder body, described spring perch is fixed on the top of cylinder body, described spring housing is located on plunger, lower end and the spring perch of spring offset, upper end and the top plate member of spring offset, outside at cylinder body is provided with travel switch, in top plate member, being provided with can be with the upper and lower synchronizing moving of plunger and after moving down, can trigger the switch contact lever of travel switch, it is characterized in that: the metering pin that can measure the oil mass in cylinder body is installed on described base plate.
Preferably, on described metering pin, be provided with maximum oil quantitative character position and minimum oil volume flag.When metering pin detects oil mass between maximum oil mass and minimum oil volume time, the main optimum Working of water bumper.
For fear of plunger, directly contact with cylinder body, in the upper end of described cylinder body, be fixed with the hydraulic actuating cylinder inner ring that guide post plug moves up and down.
In order to improve leak tightness, prevent that fluid from overflowing outside cylinder body, the porose back-up ring of using is set between the top of described hydraulic actuating cylinder inner ring and the bottom of spring perch.
When plunger is moved down, fluid in cylinder body can flow in plunger smoothly, on described base plate, be fixed with a hydraulic actuating cylinder center pull rod, the upper end of hydraulic actuating cylinder center pull rod is up-small and down-big cone-shaped, top at hydraulic actuating cylinder center railing is fixed with pull bar contiguous block, in the bottom of described plunger, torus knot stem bar is installed, described ring-shaped throttling muzzle is located at the top of hydraulic actuating cylinder center pull rod, and leave oilhole between torus knot stem bar and hydraulic actuating cylinder center pull rod, under spring reset state, described torus knot stem bar and described pull bar contiguous block are collided.
In order further to improve leak tightness, between described hydraulic actuating cylinder center link and base plate, seal ring is installed.
In order to keep the air pressure balance inside and outside plunger, described top plate member includes a plug cock, on described plug cock, has deflation hole.
For the car that makes to fall or counterweight do not occur firmly to contact with top plate member, at the end face of described top plate member, one cushion rubber is installed.Cushion rubber generally adopts rubber pad, by arranging after cushion rubber, can effectively reduce the probability that hydraulic damping device damages because being subject to the shock of descending car or counterweight.
As above-mentioned arbitrary scheme preferably, on described travel switch, be provided with can by-pass cock contacting travel adjusting bolt.
Compared with prior art, the utility model has the advantage of: this hydraulic damping device is due to the metering pin that can measure the oil mass in cylinder body being installed, thereby can to oil mass in cylinder body, regulate according to the oil mass size recording, oil mass in cylinder body is maintained in optimum range, thereby guarantee that hydraulic damping device is in optimum Working.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the cutaway view of Fig. 1;
Fig. 3 is the enlarged diagram of A part in Fig. 2;
Fig. 4 is the birds-eye view of Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
As shown in Figures 1 to 4, the hydraulic damping device in the present embodiment includes the assemblies such as base plate 1, cylinder body 2, plunger 3, top plate member 4, spring perch 5, spring 6, travel switch 7, switch contact lever 8 and metering pin 9.Wherein, cylinder body 2 is fixed on base plate 1, top plate member 4 is fixed on the top of plunger 3, the bottom of plunger 3 is stretched in cylinder body 2, spring perch 5 is fixed on the top of cylinder body 2, spring 6 adopts Compress Spring and is set on plunger 3, and the lower end of spring 6 and spring perch 5 offset, and the upper end of spring 6 and top plate member 4 offset.Travel switch 7 is arranged on the outside of cylinder body 2, and switch contact lever 8 is arranged on and in top plate member 4, is used for triggering travel switch 7.Metering pin 9 is arranged on base plate 1 and is used for the oil mass in cylinder body to measure, on metering pin 9, be provided with maximum oil quantitative character position 91 and minimum oil volume flag 92, when oil mass is between maximum oil quantitative character position 91 and minimum oil volume flag 92, hydraulic damping device is in optimum Working.
For fear of plunger 3, directly contact with cylinder body 2, in the present embodiment, in the upper end of cylinder body 2, be fixed with the hydraulic actuating cylinder inner ring 10 that guiding plunger 3 moves up and down.In addition,, in order to improve the leak tightness of device, between the top of hydraulic actuating cylinder inner ring 10 and the bottom of spring perch 5, arrange porose with back-up ring 11.
On base plate 1, be fixed with the hydraulic actuating cylinder center pull rod 12 of using as adjust bar, its upper end is up-small and down-big cone-shaped.Top at hydraulic actuating cylinder center railing 12 is fixed with pull bar contiguous block 13, in the bottom of plunger 3, torus knot stem bar 14 is installed, torus knot stem bar 14 is set in the top of hydraulic actuating cylinder center pull rod 12, and leave oilhole 15 between torus knot stem bar 14 and hydraulic actuating cylinder center pull rod 12, and, under spring 6 reset modes, torus knot stem bar 14 is collided with pull bar contiguous block 13.In addition,, in order to improve the leak tightness of device, between hydraulic actuating cylinder center link 12 and base plate 1, seal ring 16 is installed.Under normal working, in cylinder body 2, be full of fluid, the oilhole 15 on the inner chamber of cylinder body 2, torus knot stem bar 14, the inner chamber of plunger 3 communicate successively.
In order to keep plunger 3 inside and outside air pressure balances, top plate member 4 includes plug cock 41, has deflation hole 42 on plug cock.In the present embodiment, plug cock 41 is plastics plug cock.End face in top plate member 4 is provided with cushion rubber 17, and in the present embodiment, cushion rubber 17 adopts rubber pad.By arranging after cushion rubber, can effectively reduce the probability that hydraulic damping device damages because being subject to the shock of descending car or counterweight.
In the present embodiment, the standard stroke of travel switch is 8mm, also can adjust precision range according to building site assembling, and stroke adjustment realizes by the adjusting bolt 18 being arranged on travel switch 7.
Principle of work: when water bumper is subject to lift car or counterweight shock, the direct collision buffering pad 17 of impact F, after cushion rubber 17 and top plate member 4 pressurizeds, drive plunger 3 to glide, spring 6 is compressed, fluid in cylinder body 2 enters the inner chamber of plunger 3 and produces thus kinetic damping from oilhole 15, 3 times slide pressing forces of plunger increase, play the buffer action to car or counterweight, simultaneously, switch contact lever 8 is encountered switch contact 71 with the synchronous downslide of top plate member 4 and is triggered travel switch 7, make towing machine power-off, thereby it is out of service to control lift car, and, in plunger 3 downslide processes, for maintaining plunger 3 internal and external pressure balances, the air of plunger 3 inside by high compression after from deflation hole 42 eduction gears.When lift car or counterweight leave after energy disperser, spring 6 makes that plunger 3 resets completely, top plate member 4 and switch contact lever 8 move up, travel switch 7 disconnects, fluid in plunger 3 is back in cylinder body 2, and, in plunger 3 reseting procedures, for maintaining plunger 3 internal and external pressure balances, device is outside fills into air by deflation hole 42 to the inner chamber of plunger 3.
The foregoing is only preferred implementation of the present utility model; it should be pointed out that for those of ordinary skills, do not departing under principle prerequisite of the present utility model; can carry out multiple remodeling or improvement to the utility model, within these are all regarded as protection domain of the present utility model.
Claims (9)
1. a hydraulic damping device, comprise base plate (1), cylinder body (2), plunger (3), top plate member (4), spring perch (5) and spring (6), described cylinder body (2) is fixed on base plate (1), described top plate member (4) is fixed on the top of plunger (3), the bottom of described plunger (3) is stretched in cylinder body (2), described spring perch (5) is fixed on the top of cylinder body (2), described spring (6) is set on plunger (3), the lower end of spring (6) and spring perch (5) offset, the upper end of spring (6) and top plate member (4) offset, in the outside of cylinder body (2), travel switch (7) is installed, in top plate member (4), being provided with can be with the upper and lower synchronizing moving of plunger (3) and after moving down, can trigger the switch contact lever (8) of travel switch (7), it is characterized in that: the metering pin (9) that can measure the oil mass in cylinder body (1) is installed on described base plate (1).
2. hydraulic damping device according to claim 1, is characterized in that: on described metering pin (9), be provided with maximum oil quantitative character position (91) and minimum oil volume flag (92).
3. hydraulic damping device according to claim 1, is characterized in that: in the upper end of described cylinder body (2), be fixed with the hydraulic actuating cylinder inner ring (10) that guiding plunger (3) moves up and down.
4. hydraulic damping device according to claim 3, is characterized in that: between the top of described hydraulic actuating cylinder inner ring (10) and the bottom of spring perch (5), arrange porose with back-up ring (11).
5. hydraulic damping device according to claim 1, it is characterized in that: on described base plate (1), be fixed with a hydraulic actuating cylinder center pull rod (12), the upper end of hydraulic actuating cylinder center pull rod (12) is up-small and down-big cone-shaped, at the top of hydraulic actuating cylinder center railing (12), be fixed with pull bar contiguous block (13), in the bottom of described plunger (3), torus knot stem bar (14) is installed, described torus knot stem bar (14) is set in the top of hydraulic actuating cylinder center pull rod (12), and leave oilhole (15) between torus knot stem bar (14) and hydraulic actuating cylinder center pull rod (12), under spring (6) reset mode, described torus knot stem bar (14) is collided with described pull bar contiguous block (13).
6. hydraulic damping device according to claim 5, is characterized in that: between described hydraulic actuating cylinder center link (12) and base plate (1), seal ring (16) is installed.
7. hydraulic damping device according to claim 1, is characterized in that: described top plate member (4) includes a plug cock (41), has deflation hole (42) on described plug cock (41).
8. hydraulic damping device according to claim 1, is characterized in that: the end face in described top plate member (4) is provided with a cushion rubber (17).
9. according to the hydraulic damping device described in arbitrary claim in claim 1 to 8, it is characterized in that: the adjusting bolt (18) that energy by-pass cock contacting travel is installed on described travel switch (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320641742.3U CN203486700U (en) | 2013-10-17 | 2013-10-17 | Hydraulic buffering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320641742.3U CN203486700U (en) | 2013-10-17 | 2013-10-17 | Hydraulic buffering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203486700U true CN203486700U (en) | 2014-03-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320641742.3U Expired - Fee Related CN203486700U (en) | 2013-10-17 | 2013-10-17 | Hydraulic buffering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203486700U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111039125A (en) * | 2018-10-15 | 2020-04-21 | 潘实 | Hydraulic buffer device |
| CN113998560A (en) * | 2020-07-28 | 2022-02-01 | 杭州沪宁电梯部件股份有限公司 | Reset triggering mechanism for elevator buffer and elevator buffer |
-
2013
- 2013-10-17 CN CN201320641742.3U patent/CN203486700U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111039125A (en) * | 2018-10-15 | 2020-04-21 | 潘实 | Hydraulic buffer device |
| CN113998560A (en) * | 2020-07-28 | 2022-02-01 | 杭州沪宁电梯部件股份有限公司 | Reset triggering mechanism for elevator buffer and elevator buffer |
| CN113998560B (en) * | 2020-07-28 | 2024-05-07 | 杭州沪宁电梯部件股份有限公司 | Reset trigger mechanism for elevator buffer and elevator buffer |
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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: 20140319 Termination date: 20141017 |
|
| EXPY | Termination of patent right or utility model |