CN203189608U - Torque-adjustable buffer - Google Patents
Torque-adjustable buffer Download PDFInfo
- Publication number
- CN203189608U CN203189608U CN 201320145867 CN201320145867U CN203189608U CN 203189608 U CN203189608 U CN 203189608U CN 201320145867 CN201320145867 CN 201320145867 CN 201320145867 U CN201320145867 U CN 201320145867U CN 203189608 U CN203189608 U CN 203189608U
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- CN
- China
- Prior art keywords
- liquid storage
- storage cylinder
- fitting seat
- screw
- piston
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- Expired - Lifetime
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- Closing And Opening Devices For Wings, And Checks For Wings (AREA)
- Check Valves (AREA)
Abstract
The utility model relates to a torque-adjustable buffer and provides a buffer device used on a pumping station water pump flap valve. The torque-adjustable buffer comprises a piston, a screw serving as a piston rod, a mounting base arranged outside the piston and a screw base arranged outside the screw. The surface of the screw is provided with an external thread, the screw base is provided with an internal thread, the internal thread is matched with the external thread, a casing is arranged on the outer portion of the bottom of the mounting base, the mounting base and the casing form a large liquid storage cavity in a surrounding mode, a small liquid storage cavity is encircled at the bottom of the mounting base, and the large liquid storage cavity and the small liquid storage cavity are separated through a non-return cover. The torque-adjustable buffer is simple in structure, convenient to use and easy to assemble, a closing speed of the flap valve can be effectively delayed, impact force of a non-return device on a gate seat and surrounding hydraulic architectures during a gate closure period is reduced, noise and vibration are small simultaneously, and running safety of a pumping station is guaranteed.
Description
Technical field
The utility model relates to damping device, is specially a kind of damping device that is used on the water pump in pump station flap valve that draws water.
Background technique
At present, the pumping plant water outlet that draws water of China generally adopts check device to stop, and the check device relative aperture that adopts in big-and-middle-sized pumping plant is bigger.When the unit termination of pumping, close a moment at check device, can produce bigger impact force between door body and the gate seat, cause vibration and noise, in the long-term work process, because door body multiple impact brings damage to check device itself and the peripheral hydraulic structure that check device is installed, therefore have potential safety hazard, reducing check device effectively, to close the impact force that produces during the door be to guarantee the key of pumping plant safe operation.
The method that reduces the flap valve impact force in big-and-middle-sized pumping plant mainly contains: fan combined type check device, the check device of being with counterweight, hydraulic cushion formula check device, two hinge formula check device, the large-scale check device of oil pressure control formula etc. more.For example: advantages such as two hinge formula check devices are opened easily, and loss of head is little, and startup of unit is steady, but that check device is closed instantaneous impact force is still bigger; The large-scale check device of oil pressure control formula adopts compositions such as gate body, wicket body, guiding oil groove and oil pressure hoist, have that startup of unit is steady, hydraulic loss is little and check device is closed advantages such as impact force is little, but it exists complex structure, manufacturing and maintenance cost height, operation control to require high shortcoming.At present the existing method manufacture cost that these reduce the check device impact force is higher, difficult in maintenance, expensive, should not promote, the impact force when needing to adopt better solution to reduce a body and closing.Therefore design a kind of reliable damping device, the impact force when being used for reducing check device door body and closing is the key of guaranteeing the pumping plant safe operation.
The model utility content
The technical problem that the utility model solves is to provide a kind of adjustable moment of torsion buffer, to solve the shortcoming in the above-mentioned background technology.
The technical problem that the utility model solves realizes by the following technical solutions:
Adjustable moment of torsion buffer, be installed on the door-hinge of the water pump in pump station flap valve that draws water, comprise piston, serve as piston rod screw rod, be arranged on the outer fitting seat of piston and be arranged on the outer screw bolt seat of screw rod, the surface of described screw rod is provided with outside thread, screw bolt seat is provided with internal thread, matches with outside thread; Outside, bottom at described fitting seat is provided with housing, and fitting seat and housing surround big liquid storage cylinder, and the fitting seat bottom surrounds little liquid storage cylinder, and described big liquid storage cylinder and little liquid storage cylinder separate by the non-return lid.
Described non-return lid covers for the rubber non-return, and the centre is provided with throttling pore, is convenient to big liquid storage cylinder and exchanges with liquid between the little liquid storage cylinder.
Be provided with the adjusting screw rod cover between described fitting seat and the housing, change the size of big liquid storage cylinder by spiral lifting, and then regulate the buffering amplitude of buffer.
Top at described big liquid storage cylinder is provided with pneumostome, and filter screen is installed on the pneumostome, and the liquid in the described big liquid storage cylinder is in communication with the outside by pneumostome, can effectively solve the easy blocking problem of liquid-type buffer.
Top at described fitting seat is provided with mounting hole, fitting seat can be installed and fixed by bolt being passed mounting hole, and then whole buffer is installed and fixed.
In the utility model, described buffer is vertically installed, and the liquid that can not in the liquid storage cylinder runs off, and can satisfy the buffering requirement of some large-scale flap valves under anhydrous condition.
In the utility model, the buffer medium liquid in described big liquid storage cylinder and the little liquid storage cylinder is common extraneous water, does not need special fluid as buffer medium, undergoes no deterioration and causes outside contamination.
In the utility model, the position check device that described buffer is installed in check device is provided with guiding groove, buffer fixedly can be prevented its rotation.
Beneficial effect: the utility model is simple in structure, and is easy to use, and assembling easily, can effectively delay the closing velocity of flap valve, reduce check device and close during the door the impact force of gate seat and peripheral waterwork, the low vibration of noise simultaneously is little, has guaranteed the safe operation of pumping plant.
Description of drawings
Fig. 1 is the structural representation of the utility model preferred embodiment.
Among the figure: screw rod 1, fitting seat 2, screw bolt seat 3, piston 4, big liquid storage cylinder 5, little liquid storage cylinder 6, non-return lid 7, adjusting screw rod cover 8, throttling pore 9, housing 10, filter screen 11, pneumostome 12, mounting hole 13.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Adjustable moment of torsion buffer referring to Fig. 1, comprise piston 4, serve as piston rod screw rod 1, be arranged on the outer fitting seat 2 of piston 4 and be arranged on the outer screw bolt seat 3 of screw rod 1, the surface of described screw rod 1 is provided with outside thread, and screw bolt seat 3 is provided with internal thread, matches with outside thread; Outside, bottom at described fitting seat 3 is provided with housing 10, and fitting seat 2 surrounds big liquid storage cylinder 5 with housing 10, and fitting seat 2 bottoms surround little liquid storage cylinder 6, and described big liquid storage cylinder 5 separates by non-return lid 7 with little liquid storage cylinder 6.Described non-return lid 7 is rubber non-return lid, and the centre is provided with throttling pore 9.
Be provided with adjusting screw rod cover 8 between described fitting seat 2 and the housing 10, change the size of big liquid storage cylinder 5 and then the buffering amplitude of regulating buffer by spiral lifting.
Be provided with pneumostome 12 on the top of described big liquid storage cylinder 5, filter screen 11 is installed on the pneumostome 12, the liquid in the described big liquid storage cylinder 5 is in communication with the outside by pneumostome 12, can effectively solve the easy blocking problem of liquid-type buffer.
Be provided with mounting hole 13 at the top of described fitting seat 2, fitting seat 2 can be installed and fixed by bolt being passed mounting hole 13, and then whole buffer is installed and fixed.
Described adjustable moment of torsion buffer is when installing work, when flap valve door body is subjected to the fluid impulse force and closes, driving screw rod 1 rotates, lead-screw seat 3 is descending, screw bolt seat 3 drives the liquid in the big liquid storage cylinder 5 of piston 4 compressions that is attached thereto, liquid enters little liquid storage cylinder 6 by throttling pore 9, thereby produces damping, reduces a body closing velocity.When flap valve door body was opened, liquid backed down the non-return lid of making of rubber 7 from little liquid storage cylinder 6 and enters big liquid storage cylinder 5, realizes the quick unlatching of door body.
More than show and described basic principle of the present utility model, major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (6)
1. adjustable moment of torsion buffer, be installed on the door-hinge of the water pump in pump station flap valve that draws water, it is characterized in that, comprise piston, serve as piston rod screw rod, be arranged on the outer fitting seat of piston and be arranged on the outer screw bolt seat of screw rod, the surface of described screw rod is provided with outside thread, screw bolt seat is provided with internal thread, matches with outside thread; Outside, bottom at described fitting seat is provided with housing, and fitting seat and housing surround big liquid storage cylinder, and the fitting seat bottom surrounds little liquid storage cylinder, and described big liquid storage cylinder and little liquid storage cylinder separate by the non-return lid.
2. adjustable moment of torsion buffer according to claim 1 is characterized in that, described non-return lid is rubber non-return lid, and the centre is provided with throttling pore.
3. adjustable moment of torsion buffer according to claim 1 is characterized in that, is provided with the adjusting screw rod cover between described fitting seat and the housing.
4. adjustable moment of torsion buffer according to claim 1 is characterized in that, is provided with pneumostome on the top of described big liquid storage cylinder, and filter screen is installed on the pneumostome, and the liquid in the described big liquid storage cylinder is in communication with the outside by pneumostome.
5. adjustable moment of torsion buffer according to claim 1 is characterized in that, is provided with mounting hole at the top of described fitting seat.
6. adjustable moment of torsion buffer according to claim 1 is characterized in that, the buffer medium liquid in described big liquid storage cylinder and the little liquid storage cylinder is common extraneous water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320145867 CN203189608U (en) | 2013-03-28 | 2013-03-28 | Torque-adjustable buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320145867 CN203189608U (en) | 2013-03-28 | 2013-03-28 | Torque-adjustable buffer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203189608U true CN203189608U (en) | 2013-09-11 |
Family
ID=49106469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320145867 Expired - Lifetime CN203189608U (en) | 2013-03-28 | 2013-03-28 | Torque-adjustable buffer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203189608U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107105A (en) * | 2019-05-31 | 2019-08-09 | 匡雄伟 | A kind of construction Machines fall arrest buffer unit |
-
2013
- 2013-03-28 CN CN 201320145867 patent/CN203189608U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107105A (en) * | 2019-05-31 | 2019-08-09 | 匡雄伟 | A kind of construction Machines fall arrest buffer unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130911 |