CN216343616U - Altitude valve - Google Patents
Altitude valve Download PDFInfo
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- CN216343616U CN216343616U CN202122987621.1U CN202122987621U CN216343616U CN 216343616 U CN216343616 U CN 216343616U CN 202122987621 U CN202122987621 U CN 202122987621U CN 216343616 U CN216343616 U CN 216343616U
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- rotating shaft
- valve
- valve rod
- shaft body
- valve body
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Abstract
A height valve comprises an air inlet joint, a valve body, a valve disc, a spring, a valve rod, a piston, a set screw, a rotating shaft body, a rotating shaft sealing element, a silencer, a valve rod sealing element, a pin, a handle connecting screw, a clamp spring, a gasket, a rotating shaft guide sleeve, a fixed baffle ring and a valve rod guide sleeve; the valve body is connected with the rotating shaft body and seals the joint surface through a sealing ring; the valve rod is connected with the piston and fastened through a set screw to form an independent valve rod assembly; the two valve rod guide sleeves are respectively pressed into the valve body and the rotating shaft body in an interference fit manner, and one end of each valve rod guide sleeve is provided with a limit position; the valve rod sealing element is arranged between the valve body and the valve rod and is limited by a fixed baffle ring pressed into the valve body in an interference manner. The utility model has the characteristics of few parts, simple assembly steps, reliable product, convenience for later maintenance and the like.
Description
Technical Field
The utility model relates to a altitude valve.
Background
In order to improve the comfort and reduce the vibration of the train body, the motor train unit, the subway train and the like are connected with the bogie and the train body through the air springs, but new problems are brought. In the actual operation process, passengers in a carriage are unevenly distributed, the compression amount of the air spring in a passenger concentration area is large, and the compression amount of the air spring in a passenger sparse area is small, so that the inclination of a vehicle body is easily caused. For a train, the passenger capacity of each carriage is different, and the passenger capacity variation of each carriage is different when the train stops each time, so that the heights of the trains are inconsistent, and the phenomenon that the coupling device is unhooked can occur in the running process. In addition, when the train passes through the curve, the compression amount of the air spring is different due to the change of gravity. In order to solve these safety problems, a suspension control device is installed between the vehicle body and the bogie, and the core component of the suspension control device is a height valve. When the passenger capacity of the vehicle is increased, the vehicle body moves downwards relative to the bogie, and the height valve inflates the air spring, so that the pressure of the air spring is increased, and the height of the vehicle body is raised. When the passenger capacity of the vehicle is reduced, the vehicle body moves upwards, at the moment, the height valve discharges the air in the air spring, the pressure of the air spring is reduced, and the height of the vehicle body is reduced until the vehicle body is restored to the set height.
The main flow structure of the existing altitude valve is shown in fig. 1, which has the following problems:
(1) the valve body adopts an integrated design, and simultaneously, the valve body also serves as dual guide of the valve rod assembly, so that the requirements on the machining precision and the wear resistance are very high, and the difficulties of casting, machining and manufacturing are increased;
(2) the valve rod assembly has a large number of parts and a complex assembly process;
(3) the valve rod assembly is easily clamped and not easily assembled in place due to the influence of fit clearance in the process of assembling the valve rod assembly into the valve body;
(4) the valve rod O-shaped ring is easy to wear under the condition of dynamic sealing, particularly under the condition of impurity mixing; in addition, in order to fix the valve rod O-shaped ring, a flat gasket and a limiting pin are added, so that the valve rod O-shaped ring is not easy to replace;
(5) outside steam can enter into the inside of valve body through spacing pin, can cause under the low temperature condition to freeze, causes the valve action inefficacy.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of the prior art and provides a height valve which has the advantages of few parts, simple assembly steps, improved product reliability and convenience for later maintenance.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
a height valve comprises an air inlet joint, a valve body, a valve disc, a spring, a valve rod, a piston, a set screw, a rotating shaft body, a rotating shaft sealing element, a silencer, a valve rod sealing element, a pin, a handle connecting screw, a clamp spring, a gasket, a rotating shaft guide sleeve, a fixed baffle ring and a valve rod guide sleeve; the air inlet joint is connected with the valve body; the spring is positioned in the valve body and is not fixedly connected with the valve discs on the two sides, and the spring has pre-compression amount; the valve body is connected with the rotating shaft body and seals the joint surface through a sealing ring; the clamp spring is arranged in a clamp spring groove of the rotating shaft body and prevents the rotating shaft from coming off together with the gasket; the rotating shaft guide sleeve is arranged in the rotating shaft body in an interference manner and is used as the rotating guide of the rotating shaft, and the rotating shaft sealing element is arranged between the rotating shaft body and the rotating shaft; the pin is connected with the rotating shaft and is positioned in an open slot on the piston; the valve rod is connected with the piston and fastened through a set screw to form an independent valve rod assembly; the two valve rod guide sleeves are respectively pressed into the valve body and the rotating shaft body in an interference fit manner, and one end of each valve rod guide sleeve is provided with a limit position; the valve rod sealing element is arranged between the valve body and the valve rod and is limited by a fixed baffle ring pressed into the valve body in an interference manner; the silencer is connected with the rotating shaft body.
Further, a lantern ring is arranged outside the pin.
Further, the valve rod, the piston and the set screw are integrated into one part.
Furthermore, a cushion block is arranged, and a gap or interference between the cushion block and the rotating shaft body is pressed into the rotating shaft body to prevent the piston from excessively rotating.
Furthermore, a sealing ring is arranged on the joint surface of the air inlet joint and the valve body; and a sealing ring is arranged on the joint surface of the silencer and the rotating shaft body.
Further, the rotating shaft sealing piece and the valve rod sealing piece are dustproof sealing pieces.
Further, the valve body and the rotating shaft body are manufactured by adopting a machining process.
The other technical scheme is as follows:
a height valve comprises an air inlet joint, a valve body, a valve disc, a spring, a valve rod, a piston, a set screw, a rotating shaft body, a rotating shaft sealing element, a silencer, a valve rod sealing element, a pin, a handle connecting screw, a clamp spring, a gasket, a rotating shaft guide sleeve, a valve body insert and a rotating shaft body insert; the air inlet joint is connected with the valve body; the spring is positioned in the valve body and is not fixedly connected with the valve discs on the two sides, and the spring has pre-compression amount; the valve body is connected with the rotating shaft body and seals the joint surface through a sealing ring; the clamp spring is arranged in a clamp spring groove of the rotating shaft body and prevents the rotating shaft from coming off together with the gasket; the rotating shaft guide sleeve is arranged in the rotating shaft body in an interference manner and is used as the rotating guide of the rotating shaft, and the rotating shaft sealing element is arranged between the rotating shaft body and the rotating shaft; the pin is connected with the rotating shaft and is positioned in an open slot on the piston; the valve rod is connected with the piston and fastened through a set screw to form an independent valve rod assembly; the valve body insert and the rotating shaft body insert are respectively arranged in the valve body and the rotating shaft body, and the valve rod sealing element is arranged between the valve body insert and the valve rod; the silencer is connected with the rotating shaft body.
Further, a lantern ring is arranged outside the pin.
Further, the valve rod, the piston and the set screw are integrated into one part.
Furthermore, a sealing ring is arranged on the joint surface of the air inlet joint and the valve body; and a sealing ring is arranged on the joint surface of the silencer and the rotating shaft body.
Further, the rotating shaft sealing piece and the valve rod sealing piece are dustproof sealing pieces.
Further, the valve body and the rotating shaft body are manufactured by adopting a casting process.
The utility model has the technical effects that:
(1) the valve rod assembly is simplified in design, and consists of a valve rod, a piston and a set screw, so that the valve rod assembly can be integrated into a part without considering the cost, and the number of parts is greatly reduced; meanwhile, the two valve rod guide sleeves are arranged, a front guide design and a rear guide design are adopted, and the high-precision linear reciprocating action can be realized by controlling the fit clearance between the two valve rod guide sleeves and the valve rod assembly.
(2) The valve body and the rotating shaft body are divided, so that the processing difficulty is reduced, and meanwhile, the valve rod sealing element is very easy to install and replace; the installation process of the valve rod assembly is very simple, the valve rod assembly is installed in the valve body, then the rotating shaft body is installed, and then the valve body and the rotating shaft body are connected.
(3) The valve rod sealing piece is a dustproof sealing piece and has dustproof and sealing effects, and even if pollutants enter the cavity, reliable work can be still guaranteed, so that the valve rod sealing piece is more suitable for dynamic sealing of the valve rod assembly.
(4) Except the silencer opening, the whole product is totally sealed, the IP grade can reach 54, and the special silencer can reach 65.
Compared with the prior art, the utility model has the following advantages: the number of parts and assembling steps are reduced, the parts are convenient to produce and assemble, the reliability of the product is improved, and meanwhile later-stage maintenance is facilitated.
Drawings
FIG. 1 is a schematic structural view of a prior art altitude valve;
FIG. 2 is a top view of example 1 of the present invention;
FIG. 3 is a sectional view taken along line A-A of the embodiment 1 shown in FIG. 2;
FIG. 4 is a partial sectional view taken along line B-B of the embodiment 1 shown in FIG. 3;
FIG. 5 is a schematic structural view of example 2 of the present invention;
FIG. 6 is a sectional view taken along line A-A of the embodiment 2 shown in FIG. 5;
FIG. 7 is a partial sectional view of embodiment 2 of FIG. 6 taken along line B-B;
in the figure: 1. the air inlet valve comprises an air inlet connector, a valve body, a valve disc, a spring, a valve rod, a piston, a set screw, a rotating shaft body, a rotating shaft sealing element, a silencer, a valve rod sealing element, a sealing ring, a screw, a sleeve ring, a pin, a handle connecting screw, a clamp spring, a gasket, a rotating shaft guide sleeve, a cushion block, a fixed retaining ring, a valve rod guide sleeve, a valve body insert and a rotating shaft body insert 202, wherein the spring is arranged between the rotating shaft body and the valve disc; 21. air inlet, 22, air outlet, 23, air outlet.
Detailed Description
The utility model is further explained with reference to the drawings and the embodiments.
Example 1
Referring to fig. 2-4, the altitude valve comprises an air inlet joint 1, a valve body 2, a valve disc 3, a spring 4, a valve rod 5, a piston 6, a set screw 7, a rotating shaft body 8, a rotating shaft 9, a rotating shaft sealing element 10, a silencer 11, a valve rod sealing element 12, a sealing ring 13, a screw 14, a sleeve ring 15, a pin 16, a handle connecting screw 17, a snap spring 18, a gasket 19, a rotating shaft guide sleeve 20, a cushion block 101, a fixed baffle ring 102 and a valve rod guide sleeve 103; the air inlet joint 1 is connected with the valve body 2 through threads, and a sealing ring is arranged on the joint surface; the spring 4 is positioned in the valve body 2 and is not fixedly connected with the valve discs 3 at two sides, and the spring 4 has pre-compression amount; the valve body 2 is connected with the rotating shaft body 8 through a screw 14, and a joint surface is sealed through a sealing ring 13; the rotating shaft 9 is connected with a handle connecting screw 17 through threads and is used for fixedly connecting an external adjusting rod; the clamp spring 18 is arranged in a clamp spring groove of the rotating shaft body 8 and blocks the rotating shaft 9 from coming off together with the gasket 19; the rotating shaft guide sleeve 20 is arranged in the rotating shaft body 8 in an interference manner and is used as a rotating guide of the rotating shaft 9, and the rotating shaft sealing element 10 is arranged between the rotating shaft body 8 and the rotating shaft 9 and is used for isolating pollutants from the outside; the pin 16 is in interference connection with the rotating shaft 9, the lantern ring 15 is sleeved outside the pin 16 and is not fixedly connected with the pin 16, and the pin 16 and the lantern ring 15 are located in an open slot on the piston 6; the valve rod 5 is connected with the piston 6 through threads, the set screw 7 is used for fixedly connecting the valve rod 5 and the piston 6 in a reinforcing manner, and the valve rod 5, the piston 6 and the set screw 7 form an independent valve rod assembly; the valve rod sealing piece 12 is arranged between the valve body 2 and the valve rod 5 and is limited by a fixed baffle ring 102 pressed into the valve body 2 in an interference manner; the silencer 11 is connected with the rotating shaft body 8 through threads, and a sealing ring is arranged on the joint surface.
In this embodiment, the valve stem seal 12 is a dust seal.
In this embodiment, the cushion block 101 is provided to prevent the piston from rotating during the movement. The retaining ring 102 is press-fitted into the valve body 2 with interference to prevent the stem seal 12 from being dislocated during movement. The valve rod guide sleeve 103 can be made of engineering plastics or wear-resistant metal materials with a self-lubricating function, is wear-resistant, self-lubricating and maintenance-free, and achieves the purpose of long service life.
In this embodiment, the valve body 2 and the rotating shaft body 8 are manufactured by a machining process.
The working principle is as follows:
the valve has an inlet, two outlets communicating with each other, and an outlet. The three working states are respectively pressurization, decompression and pressure maintaining, and are controlled by the rotation of the rotating shaft 9. In actual operation, an external movement device drives the rotating shaft 9 to rotate around the axis through the connecting rod, and a certain translation exists between the pin 16 and the axis of the rotating shaft 9, so that a pushing force is generated on the piston 6, a component of the pushing force is parallel to the axis of the valve rod 5, the valve rod 5 is pushed to move linearly, and the moving direction depends on the rotating direction of the rotating shaft 9. When the valve rod 5 moves towards the right in the figure, the valve disc 3 is firstly pushed open, the inlet is communicated with the outlet, and the outlet pressure can rise along with the inlet pressure, namely, a pressurization state. Conversely, when the valve rod 5 moves to the left as shown in the figure, the valve disc 3 is pushed by the spring 4 to return to the seat, the connection between the inlet and the outlet is cut off, the passage of the outlet and the exhaust port is opened, and the pressure of the outlet is released through the central hole of the valve rod 5 through the silencer 11, which is a decompression state. The position shown is a dwell state, in which the outlet is neither pressurized nor depressurized. By controlling the clearance and the structural size between the valve rod 5 and the valve body 2, the flow corresponding to different rotation angles can be obtained.
Example 2
Referring to fig. 5-7, a height valve comprises an air inlet joint 1, a valve body 2, a valve disc 3, a spring 4, a valve rod 5, a piston 6, a set screw 7, a rotating shaft body 8, a rotating shaft 9, a rotating shaft sealing element 10, a silencer 11, a valve rod sealing element 12, a sealing ring 13, a screw 14, a lantern ring 15, a pin 16, a handle connecting screw 17, a clamp spring 18, a gasket 19, a rotating shaft guide sleeve 20, a valve body insert 201 and a rotating shaft body insert 202; the air inlet joint 1 is connected with the valve body 2 through threads, and a sealing ring is arranged on the joint surface; the spring 4 is positioned in the valve body 2 and is not fixedly connected with the valve discs 3 at two sides, and the spring 4 has pre-compression amount; the valve body 2 is connected with the rotating shaft body 8 through a screw 14, and a joint surface is sealed through a sealing ring 13; the rotating shaft 9 is connected with a handle connecting screw 17 through threads and is used for fixedly connecting an external adjusting rod; the clamp spring 18 is arranged in a clamp spring groove of the rotating shaft body 8 and blocks the rotating shaft 9 from coming off together with the gasket 19; the rotating shaft guide sleeve 20 is arranged in the rotating shaft body 8 in an interference manner and is used as a rotating guide of the rotating shaft 9, and the rotating shaft sealing element 10 is arranged between the rotating shaft body 8 and the rotating shaft 9 and is used for isolating pollutants from the outside; the pin 16 is in interference connection with the rotating shaft 9, the lantern ring 15 is sleeved outside the pin 16 and is not fixedly connected with the pin 16, and the pin 16 and the lantern ring 15 are located in a groove on the piston 6; the valve rod 5 is connected with the piston 6 through threads, the set screw 7 is used for fixedly connecting the piston and the valve rod in a reinforcing manner, and the valve rod 5, the piston 6 and the set screw 7 form an independent valve rod assembly; the valve body insert 201 and the rotating shaft body insert 202 are respectively arranged in the valve body 2 and the rotating shaft body 8; the valve rod sealing piece 12 is arranged between the valve body insert 201 and the valve rod 5 and is used for sealing the valve rod 5; the silencer 11 is connected with the rotating shaft body 8 through threads, and a sealing ring is arranged on the joint surface.
In this embodiment, the valve stem seal 12 is a dust seal.
In this embodiment, the valve body 2 and the rotating shaft body 8 are manufactured by a casting process.
In this embodiment, the valve body insert 201 and the rotating shaft body insert 202 which are machined in advance are embedded, so that the machining difficulty is further reduced. The valve body insert 201 and the rotating shaft body insert 202 simultaneously function as a valve stem guide.
The working principle is the same as that of embodiment 1.
Claims (10)
1. The utility model provides a altitude valve, includes air inlet joint, valve disc, spring, pivot sealing member, valve rod sealing member, pin, handle connecting screw, jump ring, gasket, pivot uide bushing, its characterized in that: the valve body, the valve rod, the piston, the set screw, the rotating shaft body, the silencer, the fixed baffle ring and the valve rod guide sleeve are also arranged; the air inlet joint is connected with the valve body; the spring is positioned in the valve body and is not fixedly connected with the valve discs on the two sides, and the spring has pre-compression amount; the valve body is connected with the rotating shaft body and seals the joint surface through a sealing ring; the clamp spring is arranged in a clamp spring groove of the rotating shaft body and prevents the rotating shaft from coming off together with the gasket; the rotating shaft guide sleeve is arranged in the rotating shaft body in an interference manner and is used as the rotating guide of the rotating shaft, and the rotating shaft sealing element is arranged between the rotating shaft body and the rotating shaft; the pin is connected with the rotating shaft and is positioned in an open slot on the piston; the valve rod is connected with the piston and fastened through a set screw to form an independent valve rod assembly; the two valve rod guide sleeves are respectively pressed into the valve body and the rotating shaft body in an interference fit manner, and one end of each valve rod guide sleeve is provided with a limit position; the valve rod sealing element is arranged between the valve body and the valve rod and is limited by a fixed baffle ring pressed into the valve body in an interference manner; the silencer is connected with the rotating shaft body.
2. The altimeter valve of claim 1, wherein: and a lantern ring is arranged outside the pin.
3. The altivalve of claim 1 or 2, wherein: the valve rod, the piston and the set screw are integrated into a single part.
4. The altivalve of claim 1 or 2, wherein: and a cushion block is also arranged, and a gap or interference between the cushion block and the rotating shaft body is pressed into the rotating shaft body to prevent the piston from excessively rotating.
5. The altivalve of claim 1 or 2, wherein: a sealing ring is arranged on the joint surface of the air inlet joint and the valve body; and a sealing ring is arranged on the joint surface of the silencer and the rotating shaft body.
6. The altivalve of claim 1 or 2, wherein: the rotating shaft sealing piece and the valve rod sealing piece are dustproof sealing pieces.
7. The utility model provides a altitude valve, includes air inlet joint, valve disc, spring, pivot sealing member, valve rod sealing member, pin, handle connecting screw, jump ring, gasket, pivot uide bushing, its characterized in that: the valve body, the valve rod, the piston, the set screw, the rotating shaft body, the silencer, the valve body insert and the rotating shaft body insert are also arranged; the air inlet joint is connected with the valve body; the spring is positioned in the valve body and is not fixedly connected with the valve discs on the two sides, and the spring has pre-compression amount; the valve body is connected with the rotating shaft body and seals the joint surface through a sealing ring; the clamp spring is arranged in a clamp spring groove of the rotating shaft body and prevents the rotating shaft from coming off together with the gasket; the rotating shaft guide sleeve is arranged in the rotating shaft body in an interference manner and is used as the rotating guide of the rotating shaft, and the rotating shaft sealing element is arranged between the rotating shaft body and the rotating shaft; the pin is connected with the rotating shaft and is positioned in an open slot on the piston; the valve rod is connected with the piston and fastened through a set screw to form an independent valve rod assembly; the valve body insert and the rotating shaft body insert are respectively arranged in the valve body and the rotating shaft body, and the valve rod sealing element is arranged between the valve body insert and the valve rod; the silencer is connected with the rotating shaft body.
8. The altimeter valve of claim 7, wherein: and a lantern ring is arranged outside the pin.
9. The altivalve of claim 7 or 8, wherein: a sealing ring is arranged on the joint surface of the air inlet joint and the valve body; and a sealing ring is arranged on the joint surface of the silencer and the rotating shaft body.
10. The altivalve of claim 7 or 8, wherein: the rotating shaft sealing piece and the valve rod sealing piece are dustproof sealing pieces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122987621.1U CN216343616U (en) | 2021-12-01 | 2021-12-01 | Altitude valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122987621.1U CN216343616U (en) | 2021-12-01 | 2021-12-01 | Altitude valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216343616U true CN216343616U (en) | 2022-04-19 |
Family
ID=81155260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122987621.1U Active CN216343616U (en) | 2021-12-01 | 2021-12-01 | Altitude valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216343616U (en) |
-
2021
- 2021-12-01 CN CN202122987621.1U patent/CN216343616U/en active Active
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