CN209800599U - Elevator buffer - Google Patents
Elevator buffer Download PDFInfo
- Publication number
- CN209800599U CN209800599U CN201920094427.0U CN201920094427U CN209800599U CN 209800599 U CN209800599 U CN 209800599U CN 201920094427 U CN201920094427 U CN 201920094427U CN 209800599 U CN209800599 U CN 209800599U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- plunger
- oil
- buffer
- elevator buffer
- 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.)
- Active
Links
Abstract
The utility model belongs to elevator part field, concretely relates to elevator buffer, including hydro-cylinder, movable fit in the plunger of hydro-cylinder and be used for the canceling release mechanical system that the plunger resets, the plunger passes through the hydro-cylinder direction, plunger inner chamber and hydro-cylinder inner chamber intercommunication, the top of plunger are equipped with the top cap, the top cap is equipped with the oiling mouth, the hydro-cylinder is equipped with oil level inspection mechanism. The utility model discloses an elevator buffer can replace traditional elevator buffer of taking the glib talker, and the preparation technology is simplified, reduces the cost of manufacture of elevator buffer to the oiling is more convenient.
Description
Technical Field
The utility model belongs to elevator part field, concretely relates to elevator buffer.
background
The elevator buffer is divided into a spring type and a hydraulic type, and the hydraulic type buffers and decelerates objects acting on the elevator buffer to stop by depending on hydraulic throttling damping, so that the buffer protection effect is realized. The safety buffer device is suitable for mechanical equipment such as hoisting transportation, elevators, metallurgy, harbor machinery, railway vehicles and the like, and is used for preventing the mechanism from being damaged due to hard collision in the working process. The hydraulic buffer needs stable buffering and resetting performance, the requirements on the sealing performance, the guiding performance and the structural size of the oil cylinder are high, the manufacturing process is strict, a liquid level detection function needs to be arranged according to standard requirements, and can set up the glib talker among the conventional technical scheme, for example patent technical document CN201820401300.4 discloses a use reliable elevator buffer, including first order buffer gear, second level buffer gear and pressure-bearing mechanism, be equipped with the hydraulic oil filling mouth on the buffer body, this internal oily passageway of crossing through first order buffer gear, second level buffer gear and pressure-bearing mechanism that is equipped with of buffer, be equipped with reset spring and spacing sleeve in first order buffer gear and the second level buffer gear respectively, second level buffer gear can install in the spacing sleeve on first order buffer gear with reciprocating, pressure-bearing mechanism can install in the spacing sleeve on the second buffer gear with reciprocating. According to the scheme, the oil injection and inspection functions are integrated through the oil nozzle, strict welding and subsequent treatment processes are required, the influence of the sealing and thermal deformation of the hydraulic oil cylinder on the guiding, sealing and throttling of the cylinder body is guaranteed, the structure is complex, the assembly line production and beat type management cost is high, and the manufacturing cost of the elevator buffer is greatly increased. And at the same time, causes inconvenient field maintenance.
In view of the above technical problems, it is desirable to improve the same.
SUMMERY OF THE UTILITY MODEL
based on the above-mentioned not enough that exists among the prior art, the utility model provides an elevator buffer.
in order to achieve the purpose of the utility model, the utility model adopts the following technical scheme:
the utility model provides an elevator buffer, includes the hydro-cylinder, the plunger of movable fit in the hydro-cylinder and is used for the canceling release mechanical system that the plunger resets, and the plunger passes through the hydro-cylinder direction, plunger inner chamber and hydro-cylinder inner chamber intercommunication, the top of plunger are equipped with the top cap, the top cap is equipped with the oiling mouth, the hydro-cylinder is equipped with oil level inspection mechanism.
preferably, the oil level checking mechanism comprises one or more through holes in the wall of the oil cylinder and a sealing member detachably connected with the through holes.
preferably, the oil cylinder is provided with two or more than two guide surfaces for guiding the plunger.
Preferably, two or more sealing rings are arranged between the plunger and the oil cylinder.
preferably, the cylinder wall has at least one through hole located at the highest position of the target oil level of the cylinder.
Preferably, the cylinder wall has at least one through hole between the lowest position of the target oil level of the cylinder and the highest position of the target oil level of the cylinder.
Preferably, the cylinder wall has at least one through hole located at the lowest position of the target oil level of the cylinder.
Preferably, the cylinder wall has a boss, and the through hole is located on the boss.
Preferably, the through hole is a threaded hole, and correspondingly, the sealing element is a bolt or a screw; and/or a gasket is arranged between the sealing element and the through hole.
Preferably, a one-way valve is arranged in the oil filling nozzle.
Compared with the prior art, the utility model, beneficial effect is: the utility model discloses an elevator buffer can replace traditional elevator buffer of taking the glib talker, and the preparation technology is simplified, reduces the cost of manufacture of elevator buffer to the oiling is more convenient.
Drawings
Fig. 1 is a front view of an overall structure of an elevator buffer according to a first embodiment of the present invention;
Fig. 2 is a sectional view of a left side view of an overall structure of an elevator buffer according to a first embodiment of the present invention;
fig. 3 is a cross-sectional view of an oil cylinder of an elevator buffer according to a first embodiment of the present invention;
Fig. 4 is an enlarged schematic diagram of an explosion at a cylinder through hole of an elevator buffer according to a first embodiment of the present invention;
wherein: 1. an oil cylinder; 11. the highest of the target oil levels; 12. the lowest part of the target oil level; 13. a throttle lever; 14. a boss; 2. a first threaded hole; 21. a first bolt; 3. a second threaded hole; 31. a second bolt; 4. a gasket; 5. a plunger; 51. an oil injection nozzle; 52. a one-way valve; 53. a cushion rubber pad; 6. a return spring; 7. a switch feeler lever; 8. a switch base; 9. a dust cover.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention, the following description will explain embodiments of the present invention with reference to the accompanying drawings. It is obvious that the drawings in the following description are only examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be obtained from these drawings without inventive effort.
The first embodiment is as follows:
As shown in fig. 1-4, the elevator buffer of the embodiment is generally arranged in a pit of an elevator, and an object acting on the buffer is buffered and decelerated to stop by means of hydraulic throttling damping in the working process, so that a certain degree of protection is achieved, and the mechanism damage caused by hard collision is prevented; the elevator buffer comprises an oil cylinder 1, a plunger 5 and a reset mechanism, wherein the plunger 5 moves in the oil cylinder 1, the plunger 5 directly moves up and down under the guidance of two guide surfaces in a cylinder body of the oil cylinder 1, two sealing rings are arranged between the plunger 5 and the cylinder body of the oil cylinder 1 to enhance the sealing performance between the plunger 5 and the cylinder body of the oil cylinder 1, an inner cavity is formed in the plunger 5, a top cover seal is arranged at the top of the plunger 5, and a throttling hole is formed in the bottom of the plunger 5 and communicated with the inner cavity of the oil cylinder through the throttling; the inner cavity of the oil cylinder 1 is filled with oil, when the top of the plunger 5 bears pressure, the plunger 5 moves downwards, the oil in the inner cavity of the oil cylinder 1 supports the plunger 5 to prevent the plunger 5 from moving downwards, and meanwhile, the oil in the inner cavity of the oil cylinder 1 flows into the inner cavity of the plunger 5 from the inner cavity of the oil cylinder 1 under the pressure of the plunger 5 to play a role in hydraulic buffering; when the pressure on the top of the plunger 5 is removed, the plunger 5 is reset by the reset mechanism.
specifically, the oil cylinder 1 is provided with an oil level checking mechanism which comprises two through holes arranged on the wall of the oil cylinder and respectively located at the highest part 12 and the lowest part 13 of a target oil level, the target oil level is arranged according to the actual technical requirements, and when the oil level is located between the highest part 12 and the lowest part 13 of the target oil level, the working state of the elevator buffer is optimal; the two through holes are positioned in the vertical direction, so that the two through holes can be conveniently machined and formed at the same longitudinal position and also can be transversely arranged at different positions, the two through holes are respectively tapped to form a first threaded hole 2 and a second threaded hole 3, the first threaded hole 2 is in sealing connection with the first bolt 21, the second threaded hole 3 is in sealing connection with the second bolt 31, the first bolt 21 and the second bolt are metal bolts, and the structural strength is high; add between first bolt 21, second bolt 31 and first screw hole 2 and second screw hole 3 and establish gasket 4 reinforcing sealing connection's leakproofness, wherein gasket 4 is a whole gasket, and the material chooses for use rubber, strengthens holistic leakproofness.
because the hydro-cylinder wall is the arc, in order to further strengthen bolt and screw hole complex leakproofness, need to process the hydro-cylinder wall of bolt and screw hole seal cooperation department and smooth, and directly can very big reduction hydro-cylinder wall's wall thickness at hydro-cylinder wall processing, reduce the structural strength of hydro-cylinder wall, go out boss 14 through punching press technology punching press, process the boss top surface of boss 14 and smooth, the screw hole setting can be under the structural strength who does not influence the hydro-cylinder wall on the boss, make the cooperation of bolt and screw hole inseparabler, package proves the leakproofness of hydro-cylinder 1, the boss is the waist simultaneously, make the outward appearance of product more beautiful.
an oil nozzle 51 is arranged at the central position of the top cover of the plunger 5, a one-way valve 52 is arranged in the oil nozzle 51, and the one-way valve 52 can allow oil to enter the inside of the plunger 5 from the outside in a one-way mode and prevent the oil from going out of the inside of the plunger 5 when the oil is filled.
In the normal use process, the oil level in the oil cylinder 1 is judged by observing whether oil flows out or not by disassembling the first bolt 21, if the oil level is higher than the first threaded hole 2, the oil can automatically flow out, and if the oil does not flow out, the oil level is positioned at the highest position of a target oil level; disassembling the second bolt 31, and if oil flows out, assembling the second bolt 31 back to represent that the oil level is normal, wherein the oil level is between the highest position and the lowest position of the target oil level; if the oil is not flowed back by the second bolt 31, the oil level is at the lowest position of the target oil level. When in oil filling, oil is filled into the plunger 5 from an oil filling nozzle 51 on the top cover of the plunger 5 through a one-way valve 52, and the oil flows into the oil cylinder 1 because the plunger 5 is communicated with the oil cylinder 1; the bolts at different positions are selectively disassembled, if the first bolt 21 is disassembled, when oil flows out through the first threaded hole 2, oil injection is stopped, the oil level is located at the highest position of the target oil level, and if the second bolt 31 is disassembled, when oil flows out through the second threaded hole 3, oil injection is stopped, and the oil level is located at the lowest position of the target oil level; and after the oil injection is finished, all the bolts are installed back. The traditional oil nozzle welding complex process can be omitted by replacing the traditional oil nozzle with the sealing detachable connection of the first threaded hole 2 and the second threaded hole 3 and the first bolt 21 and the second bolt 31, the welding process is complex, the assembly line takt production requirement is inconvenient to carry out, the cost is extremely high, high energy consumption can be generated during the post-welding treatment, and the production period is long; meanwhile, the oil filling nozzle 51 replaces the oil filling function of the original oil nozzle, and oil filling is more convenient.
In addition, a throttle rod 13 is also arranged in the oil cylinder 1, and the throttle rod 13 is in clearance fit with a throttle hole at the bottom of the plunger piston so as to stabilize the buffering force of the elevator buffer; the top of the plunger 5 is also provided with a buffer rubber pad 53 which is made of nitrile rubber, so that impact noise is reduced, and buffer force is enhanced; a reset spring 6 is arranged between the plunger 5 and the oil cylinder 1 and is used as a reset mechanism for driving the plunger 5 to reset and move upwards after the plunger 5 is stressed; a switch contact rod 7 and a switch seat 8 are arranged outside the plunger 5 and the oil cylinder 1 and are used for sensing the working state of the elevator buffer; the outer portion of the plunger 5 is further covered with a dust cover 9, and the dust cover 9 is made of polypropylene fibers and flame retardant to protect internal equipment.
example two:
The elevator buffer of the present embodiment is different from the first embodiment in that:
The second threaded hole can be omitted, and the corresponding second bolt can be omitted, so that compared with the first embodiment, the structure is simplified, and the cost is saved.
Other structures refer to the first embodiment.
Example three:
the elevator buffer of the present embodiment is different from the first embodiment in that:
The first threaded hole can be omitted, and the corresponding first bolt can be omitted, so that compared with the first embodiment, the structure is simplified, and the cost is saved.
other structures refer to the first embodiment.
example four:
The elevator buffer of the present embodiment is different from the first embodiment in that:
The boss can be omitted, the oil cylinder wall is directly milled with a plane or is matched and sealed with an arc gasket, and compared with the first embodiment, the structure is simplified.
other structures refer to the first embodiment.
Example five:
The elevator buffer of the present embodiment is different from the first embodiment in that:
The wall of the oil cylinder is provided with one or more than two through holes, and the positions are located at different oil level heights of the oil cylinder, such as the position above the highest target oil level, the position between the highest target oil level and the lowest target oil level, the position below the lowest target oil level and the like. Compared with the first embodiment, the number and the positions of the through holes in the oil cylinder wall are not limited, and the oil levels with different oil level heights can be conveniently checked through the plurality of through holes.
Other structures refer to the first embodiment.
Example six:
The elevator buffer of the present embodiment is different from the first embodiment in that:
The first bolt and the second bolt are made of plastics, glass, rubber and the like, and compared with the first embodiment, the first bolt or the second bolt is not limited in material.
The first bolt and the second bolt are replaced by screws; compare embodiment one. The specific structure of the seal is not limited.
Or a strip-shaped hole is formed in the vertical direction of the oil cylinder, and an observation window is embedded in the strip-shaped hole. In contrast to the first embodiment, the specific structure of the oil level inspection mechanism is not limited.
other structures refer to the first embodiment.
Example seven:
the elevator buffer of the present embodiment is different from the first embodiment in that:
The two through holes are respectively provided with an annular bulge, the sealing element is a rubber plug with a matched annular groove structure, and the rubber plug is matched with the concave-convex structure of the through hole for plugging and sealing; or the two through holes are internally provided with annular grooves respectively, the sealing element is a rubber plug with an annular convex structure matched with the sealing element, and the rubber plug is matched with the concave-convex structure of the through hole for plugging and sealing. Compared with the first embodiment, the installation is more convenient, and the specific structure and the matching mode of the through hole and the sealing element are not limited.
Other structures refer to the first embodiment.
Example eight:
the elevator buffer of the present embodiment is different from the first embodiment in that:
The gasket is made of metal; alternatively, the gasket is replaced with a member having a sealing property reinforcing function such as a thread sealing compound or a sealing sleeve, and the sealing property reinforcing function is not limited to the first embodiment.
other structures refer to the first embodiment.
Example nine:
the elevator buffer of the present embodiment is different from the first embodiment in that:
first bolt and second bolt use two different gaskets alone respectively, compare in embodiment one first bolt and second bolt and use same gasket, are convenient for dismantle alone and change.
Other structures refer to the first embodiment.
Example ten:
The elevator buffer of the present embodiment is different from the first embodiment in that:
The one-way valve can be replaced by a detachable sealing connection of the plug and the oil filling nozzle; or other detachable sealing structure, compared with the first embodiment, the sealing part in the oil nozzle is not limited.
other structures refer to the first embodiment.
Example eleven:
The elevator buffer of the present embodiment is different from the first embodiment in that:
the one-way valve may be omitted. Compared with the first embodiment, the cost is saved.
Other structures refer to the first embodiment.
Example twelve:
The elevator buffer of the present embodiment is different from the first embodiment in that:
the oil nozzle can be arranged at other positions such as the edge of the plunger, and compared with the first embodiment, the specific position of the oil nozzle is not limited according to actual situation selection.
Other structures refer to the first embodiment.
Example thirteen:
The elevator buffer of the present embodiment is different from the first embodiment in that:
The return spring can be omitted and replaced by filling inert gas into the oil cylinder. Compared with the first embodiment, the specific structure of the reset mechanism is not limited.
Other structures refer to the first embodiment.
Example fourteen:
the elevator buffer of the present embodiment is different from the first embodiment in that:
Compared with the first embodiment, the number of the guide surfaces of the oil cylinder body is not limited, and the plurality of the guide surfaces can improve the guidance.
Other structures refer to the first embodiment.
Example fifteen:
The elevator buffer of the present embodiment is different from the first embodiment in that:
Compared with the first embodiment, the sealing rings are not limited in number, and the sealing performance between the plunger and the cylinder body can be improved by the aid of the sealing rings.
other structures refer to the first embodiment.
it should be noted that the above embodiments can be freely combined as necessary. The foregoing has been a detailed description of the preferred embodiments and principles of the present invention, and it will be apparent to those skilled in the art that variations may be made in the specific embodiments based on the concepts of the present invention, and such variations are considered as within the scope of the present invention.
Claims (10)
1. The elevator buffer comprises an oil cylinder, a plunger movably matched with the oil cylinder and a resetting mechanism used for resetting the plunger, wherein the plunger is guided by the oil cylinder, an inner cavity of the plunger is communicated with an inner cavity of the oil cylinder, and the top of the plunger is provided with a top cover.
2. The buffer of claim 1, wherein the oil level checking mechanism comprises one or more through holes in the wall of the cylinder and a sealing member detachably connected to the through holes.
3. The elevator buffer of claim 1 wherein said cylinder has two or more guide surfaces for guiding said plunger.
4. The buffer of claim 1, wherein two or more sealing rings are disposed between the plunger and the cylinder.
5. An elevator buffer as defined in claim 2 wherein said cylinder wall has at least one through hole located at the highest of the target oil levels of the cylinder.
6. an elevator buffer as defined in claim 2, wherein said cylinder wall has at least one through hole between a lowest target oil level of said cylinder and a highest target oil level of said cylinder.
7. an elevator buffer as defined in claim 2, wherein said cylinder wall has at least one through hole located at a lowest target oil level of the cylinder.
8. an elevator buffer as defined in claim 2 wherein said cylinder wall has a boss and said through-hole is located in said boss.
9. an elevator buffer as defined in claim 2 wherein said through-hole is a threaded hole and said seal is a bolt or screw, respectively; and/or a gasket is arranged between the sealing element and the through hole.
10. An elevator buffer as defined in any one of claims 1-9, wherein a one-way valve is provided in said oil nipple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920094427.0U CN209800599U (en) | 2019-01-21 | 2019-01-21 | Elevator buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920094427.0U CN209800599U (en) | 2019-01-21 | 2019-01-21 | Elevator buffer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209800599U true CN209800599U (en) | 2019-12-17 |
Family
ID=68820559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920094427.0U Active CN209800599U (en) | 2019-01-21 | 2019-01-21 | Elevator buffer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209800599U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021212699A1 (en) * | 2020-04-23 | 2021-10-28 | 杭州沪宁电梯部件股份有限公司 | Spin-formed structure for elevator buffer, and manufacturing method therefor and use thereof |
-
2019
- 2019-01-21 CN CN201920094427.0U patent/CN209800599U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021212699A1 (en) * | 2020-04-23 | 2021-10-28 | 杭州沪宁电梯部件股份有限公司 | Spin-formed structure for elevator buffer, and manufacturing method therefor and use thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209800599U (en) | Elevator buffer | |
| CN202280687U (en) | Plunger oil cylinder | |
| CN204061414U (en) | Steady buffering type lift oil tank | |
| CN202687688U (en) | Oil buffer | |
| CN2835699Y (en) | Hydro-pneumatic buffer | |
| CN111457047A (en) | Elevator buffer | |
| CN201007295Y (en) | Wet-type electromagnetic direction changing valve | |
| CN204900407U (en) | Seal structure of pneumatic cylinder cylinder cap | |
| CN206458761U (en) | A kind of high-effect oil buffer | |
| CN101900148A (en) | Short-stroke pressure-maintaining high-pressure heavy hydraulic cylinder with high-pressure proximity switches | |
| CN209524033U (en) | A kind of buffering hydraulic cylinder | |
| CN201621129U (en) | Single-acting plunger type buffering hydraulic oil cylinder | |
| CN104358735B (en) | A kind of lifting hydraulic jack | |
| CN103615432A (en) | Buffering structure for forklift lifting oil cylinder | |
| CN202023780U (en) | Pressure-reducing type balance hydraulic lock | |
| CN204591863U (en) | A kind of lifting machine high-precision hydraulic cylinder | |
| CN107458943A (en) | A kind of buffer unit being installed in stair shaft | |
| CN204900389U (en) | Mounting structure of pneumatic cylinder cylinder bottom | |
| CN203796663U (en) | Anti-falling air cylinder | |
| CN206754039U (en) | The unidirectional cylinder of spring brake | |
| CN112253665A (en) | Two-stage vibration isolation buffer | |
| KR200340820Y1 (en) | A buffer for elevator | |
| CN206395766U (en) | A kind of jack piston having to top protective effect | |
| CN201661681U (en) | Piston rod sealing system | |
| CN220600324U (en) | Oil pressure buffer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |