CN223498766U - A novel sealing structure for a three-way valve - Google Patents
A novel sealing structure for a three-way valveInfo
- Publication number
- CN223498766U CN223498766U CN202423116150.7U CN202423116150U CN223498766U CN 223498766 U CN223498766 U CN 223498766U CN 202423116150 U CN202423116150 U CN 202423116150U CN 223498766 U CN223498766 U CN 223498766U
- Authority
- CN
- China
- Prior art keywords
- air inlet
- way valve
- sealing
- upper cover
- air
- 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
Landscapes
- Check Valves (AREA)
Abstract
本实用新型公开了一种三通阀上的新型密封结构，包括三通阀本体，在三通阀本体内的2组互不连通的气道内均设有密封盘；其特征在于：密封盘的下端面中间设有固定柱，固定柱插入下盖的固定柱孔内紧配使密封盘固定，密封盘的上端面的盘面平整的贴合在上盖的进气位上堵住进气孔，从而使进气位密封；本实用新型的密封盘、固定柱一体成型，固定柱紧配在固定柱孔内固定性能好，长期使用固定柱也不会发生形变，固定柱稳定，密封盘的盘面不会发生形变，能一直贴合在进气位上密封进气位，密封盘长期使用密封效果好，确保三通阀本体使用期限长。
This utility model discloses a novel sealing structure for a three-way valve, including a three-way valve body, in which two sets of non-communicating air passages are provided with sealing discs. The key feature is that a fixing post is provided in the middle of the lower end face of the sealing disc, which is inserted into the fixing post hole of the lower cover to secure the sealing disc. The upper end face of the sealing disc is flatly fitted to the air inlet position of the upper cover, blocking the air inlet hole and thus sealing the air inlet. The sealing disc and fixing post of this utility model are integrally formed. The fixing post is tightly fitted into the fixing post hole, providing good fixation performance. Even after long-term use, the fixing post will not deform, ensuring stability. The sealing disc surface will not deform, allowing it to remain firmly fitted to the air inlet and seal it. This ensures a long service life for the three-way valve body.
Description
Technical Field
The utility model relates to automobile spare and accessory parts, in particular to a sealing disc arranged in an L-shaped three-way valve used in a brake system of an automobile.
Background
Three-way valves, which act to switch or merge two fluid paths in one valve body, are widely used in industrial applications.
An L-shaped three-way valve used in an automobile brake system, namely, gas enters from 1 inlet (an air inlet pipe) and then is blown out through 2 outlets (air outlet pipes). A sealing disc made of soft rubber is arranged in an air passage of the valve body, and the service life of the three-way valve mainly lies in the sealing effect of the sealing disc.
In the prior art, a fixed shaft is arranged in the middle of an air inlet position in an upper cover of a valve body, an oval positioning hole is arranged in the middle of a corresponding air outlet position in a lower cover of the valve body, a central through hole is arranged in the middle of a sealing disc, when the valve body is installed, the central through hole of the sealing disc is tightly matched with the fixed shaft to fix the sealing disc, the fixed shaft is inserted into the oval positioning hole of the lower cover, the disc surface of the sealing disc is flatly attached to the air inlet position to seal the air inlet position;
In order to achieve good fixing performance of the sealing disc, the diameter of the central through hole of the sealing disc is generally smaller than that of the fixing shaft, and the central through hole needs to be tightly matched with the fixing shaft so as to fix the sealing disc, but the sealing disc has the following defects:
1. The central through hole is tightly matched with the fixed shaft and belongs to interference fit, the central through hole of the sealing disc made of soft rubber is easy to deform and has a gap after the use time is longer, ventilation is caused between the fixed shaft and the central through hole of the sealing disc, the disc surface of the sealing disc is also in an uneven state due to deformation, and a gap is formed between the disc surface of the sealing disc and an air inlet position, so that when the air outlet pipe has return air, the return air enters the air inlet pipe from the deformed central through hole and the deformed disc surface, the three-way valve leaks air, and a product is invalid;
2. The elliptical mounting hole of lower cover sets up, and the fixed axle can appear the displacement in the mounting hole, has accelerated the deformation of center through-hole.
Thus, improvements are needed in the art.
Disclosure of Invention
The utility model aims to provide a novel sealing structure on a three-way valve, which aims to overcome the defects in the background technology.
The utility model adopts the following technical scheme.
The utility model provides a novel seal structure on three-way valve, includes the three-way valve body, the three-way valve body is equipped with upper cover and lower cover, is equipped with 2 sets of air flue that are not mutually connected in upper cover and the lower cover, is equipped with the sealing disk in the air flue.
The disc surface of the upper end surface of the sealing disc is flat, and an integrally formed fixing column is arranged in the middle of the lower end surface.
The surface of the air inlet position in the upper cover is smooth, a fixed column hole is arranged in the middle of the air outlet position of the lower cover, and the fixed column of the sealing disc is inserted into the fixed column hole of the lower cover to be tightly matched so as to fix the sealing disc.
As a preferable scheme, 2 air inlet positions are arranged in the upper cover, 2 corresponding air outlet positions are arranged in the lower cover, when the upper cover and the lower cover are closed, the air inlet positions in the upper cover and the corresponding air outlet positions in the lower cover jointly form air passages, and a separation plate is arranged between the 2 air passages.
The top ends of the fixed column holes in the gas outlet position extend out of the gas outlet position, and the periphery of the fixed column holes is uniformly provided with penetrating gas outlet holes; the lower cover is externally connected with 2 air outlet pipes, and each air outlet pipe is respectively communicated with 1 air outlet position.
As a preferable scheme, the inner space of the upper cover has a certain space height, the surfaces of 2 air inlet positions are flat, and a plurality of air inlet holes are uniformly arranged in the air inlet positions; when the upper cover and the lower cover are closed, the disc surface of the upper end surface of the sealing disc is just attached to the air inlet position, so that an air inlet hole in the air inlet position is blocked and sealed, and the upper cover is connected with 1 air inlet pipe which is respectively communicated with 2 air inlet positions.
As a preferable scheme, the sealing disk is made of FVMQ, i.e. fluorosilicone rubber.
The three-way valve has the advantages that sealing discs are arranged in 2 groups of mutually non-communicated air passages in the three-way valve body, the fixing columns are arranged in the middle of the lower end faces of the sealing discs and are tightly inserted into the fixing column holes of the lower cover to fix the sealing discs, the disc faces of the upper end faces of the sealing discs are flatly attached to the air inlet positions of the upper cover to seal the air inlet positions, so that the air inlet positions are sealed, the sealing discs and the fixing columns are integrally formed, the fixing columns are tightly attached to the fixing column holes, the fixing performance is good, the fixing columns cannot deform after long-term use, the fixing columns are stable, the disc faces of the sealing discs cannot deform after long-term use, the sealing effect is good after long-term use, and the service life of the three-way valve body is ensured.
Drawings
FIG. 1 is an exploded view of the present utility model;
FIG. 2 is a schematic view of the air inlet position of the sealing disc sealing upper cover of the utility model;
FIG. 3 is a schematic view of the sealing disk of the present utility model with the fixing posts tightly fitted in the fixing post holes of the lower cover;
FIG. 4 is a top view of the lower cover of the present utility model;
Fig. 5 is a schematic overall appearance of the present utility model.
Wherein, 100-three-way valve body, 10-upper cover, 11-inlet position, 111-inlet hole, 20-lower cover, 21-outlet position, 211-fixed column hole, 212-outlet hole, A-air flue, A1-division board, 30-sealing disk, 31-disk surface, 32-fixed column, 40-inlet pipe, 50-outlet pipe.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear are used in the embodiments of the present utility model) are merely for explaining the relative positional relationship, movement conditions, and the like between the components in a certain specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicators are changed accordingly.
Referring to fig. 1-5, a novel sealing structure on a three-way valve comprises a three-way valve body (100), wherein the three-way valve body (100) is provided with an upper cover (10) and a lower cover (20), 2 groups of air passages (A) which are not communicated with each other are arranged in the upper cover (10) and the lower cover (20), and a sealing disc (30) is arranged in the air passages (A), and the novel sealing structure is characterized in that a disc surface (31) of the upper end surface of the sealing disc (30) is flat, an integrally formed fixed column (32) is arranged in the middle of the lower end surface, the surface of an air inlet position (11) in the upper cover (10) is flat, a fixed column hole (211) is arranged in the middle of an air outlet position (21) of the lower cover (20), the fixed column (32) of the sealing disc (30) is inserted into the fixed column hole (211) of the lower cover (20) in a close fit mode, and in an initial state, the disc surface (31) of the upper end surface of the sealing disc (30) is flat and attached to the air inlet position (11) of the upper cover (10).
The upper cover (10) is internally hollow and has a certain space height, the upper cover (10) is provided with 2 air inlet positions (11), the surfaces of the 2 air inlet positions (11) are smooth, and a plurality of air inlet holes (111) are uniformly formed in the air inlet positions (11).
The top end of a fixed column hole (211) in the air outlet position (21) of the lower cover (20) extends out of the air outlet position (21), and the periphery of the fixed column hole (211) is uniformly provided with a penetrating air outlet hole (212).
The fixing column (32) of the sealing disc (30) is inserted into the fixing column hole (211) of the lower cover (20) in a tight fit mode to enable the sealing disc (30) to be fixed, and when the upper cover (10) and the lower cover (20) are closed, the disc face (31) of the upper end face of the sealing disc (30) is just attached to the air inlet position (11), and the air inlet hole (111) in the air inlet position (11) is blocked and sealed.
The three-way valve is characterized in that 1 air inlet pipe (40) is connected to the outside of the upper cover of the three-way valve body (100), and the air inlet pipe (40) is respectively communicated with 2 air inlet positions (11).
2 Air outlet pipes (50) are connected to the outside of the lower cover (20) of the three-way valve body (100), and each air outlet pipe (50) is respectively communicated with 1 air outlet position (21).
The working principle of the utility model is as follows:
The fixing column of the sealing disk is inserted into the fixing column hole of the lower cover to tightly fit the sealing disk, and in an initial state, the disk surface of the upper end surface of the sealing disk is flatly attached to the air inlet position of the upper cover to block the air inlet position;
When the air inlet pipe is in air inlet, the fixed column of the sealing disc is fixed in the fixed column hole of the lower cover, the fixed column hole is higher than the air outlet position edge, so that a certain interval distance is reserved between the disc surface and the air outlet position, air enters, the disc surface of the sealing disc made of soft rubber material is blown to the air outlet position direction of the lower cover by the air, the disc surface deforms under the action of wind force to leave the air inlet position, the air inlet position is exposed, the air enters the air passage from the air inlet position, and the air enters the air outlet pipe from the air outlet hole;
when the back air is reversed in the air outlet pipe, the air inlet position is blocked on the air inlet position of the upper cover due to the flat attaching of the disc surface, the back air can only enable the disc surface to be attached to the air inlet position more tightly, no gap exists between the disc surface and the air inlet position, the back air cannot enter the air inlet pipe, and the sealing effect of the sealing disc is good.
In the utility model, the fixing column of the sealing disk is tightly matched in the fixing column hole of the lower cover, and the fixing column plays a role in fixing, so that even if the fixing column and the fixing column hole are in interference fit and are not related to the disk surface of the sealing disk, the disk surface of the sealing disk can keep the flatness all the time.
In the utility model, the sealing disk is made of FVMQ (fluorinated silicone rubber), has better stress elastic deformation and resetting function than common rubber (such as fluororubber, silicone rubber and the like), can resist high and low temperature performance, oil resistance, chemicals resistance, aging resistance and the like, and forms an effective barrier through tightly attaching the surface of the device to prevent leakage of fluid, thereby ensuring normal operation and efficiency of the three-way valve device.
The foregoing description is only of the preferred embodiments of the utility model, and the above-described embodiments are not intended to limit the utility model. Various changes and modifications may be made within the scope of the technical idea of the present utility model, and any person skilled in the art may make any modification, modification or equivalent substitution according to the above description, which falls within the scope of the present utility model.
Claims (5)
1. A novel sealing structure on a three-way valve comprises a three-way valve body (100), wherein the three-way valve body (100) is provided with an upper cover (10) and a lower cover (20), 2 groups of air passages (A) which are not communicated with each other are arranged in the upper cover (10) and the lower cover (20), and a sealing disc (30) is arranged in the air passages (A), and the novel sealing structure is characterized in that a disc surface (31) of the upper end surface of the sealing disc (30) is flat, an integrally formed fixed column (32) is arranged in the middle of the lower end surface, the surface of an air inlet position (11) in the upper cover (10) is flat, a fixed column hole (211) is arranged in the middle of an air outlet position (21) of the lower cover (20), the fixed column (32) of the sealing disc (30) is inserted into the fixed column hole (211) of the lower cover (20) in a tight fit mode, and in an initial state, and the disc surface (31) of the upper end surface of the sealing disc (30) is flatly attached to the air inlet position (11) of the upper cover (10).
2. The novel sealing structure on the three-way valve of claim 1, wherein 2 air inlet positions (11) are arranged in the upper cover (10), 2 corresponding air outlet positions (21) are arranged in the lower cover (20), when the upper cover (10) and the lower cover (20) are closed, the air inlet positions (11) in the upper cover and the corresponding air outlet positions (21) in the lower cover jointly form an air passage (A), and a separation plate is arranged between the 2 air passages (A).
3. The novel sealing structure on the three-way valve of claim 1 is characterized in that the top end of a fixed column hole (211) in the gas outlet position (21) extends out of the gas outlet position (21), penetrating gas outlet holes (212) are uniformly formed in the periphery of the fixed column hole (211), 2 gas outlet pipes (50) are connected to the outside of the lower cover (20), and each gas outlet pipe (50) is respectively communicated with 1 gas outlet position (21).
4. The novel sealing structure on the three-way valve of claim 1 is characterized in that the inner space of the upper cover (10) has a certain space height, the surfaces of 2 air inlet positions (11) are flat, a plurality of air inlet holes (111) are uniformly formed in the air inlet positions (11), when the upper cover (10) and the lower cover (20) are closed, a disc surface (31) of the upper end surface of the sealing disc (30) is just attached to the air inlet positions (11) to seal the air inlet holes (111) in the air inlet positions (11), 1 air inlet pipe (40) is connected to the upper cover (10), and the air inlet pipes (40) are respectively communicated with the 2 air inlet positions (11).
5. The novel sealing structure of the three-way valve according to claim 1, wherein the sealing disk (30) is made of FVMQ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202423116150.7U CN223498766U (en) | 2024-12-17 | 2024-12-17 | A novel sealing structure for a three-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202423116150.7U CN223498766U (en) | 2024-12-17 | 2024-12-17 | A novel sealing structure for a three-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223498766U true CN223498766U (en) | 2025-10-31 |
Family
ID=97479831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202423116150.7U Active CN223498766U (en) | 2024-12-17 | 2024-12-17 | A novel sealing structure for a three-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223498766U (en) |
-
2024
- 2024-12-17 CN CN202423116150.7U patent/CN223498766U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103791664B (en) | A kind of with the heating power expansion valve being unidirectionally controlled function | |
| KR960011227A (en) | Right Angle Thermal Response Expansion Valves | |
| CN223498766U (en) | A novel sealing structure for a three-way valve | |
| BR0204483A (en) | Magnetic valve | |
| CN111043351B (en) | Ultralow-temperature low-flow-resistance self-maintaining two-position three-way stop valve | |
| CN218670773U (en) | A Segmented Large Flow Vertical Check Valve | |
| CN210830616U (en) | Vertical one-way valve | |
| CN216158389U (en) | Pressure stabilizing joint with pressure reducing valve | |
| CN223622355U (en) | Shock-resistant valve body | |
| CN205578786U (en) | Board -like solenoid valve | |
| CN222650680U (en) | Movable iron core type proportional valve | |
| CN212389794U (en) | Four-way valve | |
| CN108506532A (en) | A kind of air outlet valve of double ball sealings | |
| CN223750990U (en) | Flow channel components and vehicles | |
| CN217422330U (en) | A pressure reducing valve for environmental protection equipment | |
| CN217328628U (en) | A double-valve low-resistance backflow preventer | |
| CN218236260U (en) | A sealing structure for a safety valve | |
| CN223648672U (en) | Novel valve | |
| CN219529924U (en) | Multi-caliber check valve of waterproof hammer | |
| CN219263356U (en) | High-pressure-difference-resistant noise-reduction cage type regulating valve | |
| CN223895139U (en) | Valve island non-return structure | |
| CN223469775U (en) | Check valve | |
| CN218913712U (en) | Sealing ring | |
| CN217539742U (en) | High pressure resistant combination canned type check valve | |
| CN224003221U (en) | Vacuum mini check valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |