CN111102381A - Novel assembly welding valve - Google Patents
Novel assembly welding valve Download PDFInfo
- Publication number
- CN111102381A CN111102381A CN201911275707.2A CN201911275707A CN111102381A CN 111102381 A CN111102381 A CN 111102381A CN 201911275707 A CN201911275707 A CN 201911275707A CN 111102381 A CN111102381 A CN 111102381A
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- Prior art keywords
- valve
- wall
- handle
- sealing
- baffle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/20—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members
- F16K11/22—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members with an actuating member for each valve, e.g. interconnected to form multiple-way valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0263—Construction of housing; Use of materials therefor of lift valves multiple way valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
- F16K31/508—Mechanical actuating means with screw-spindle or internally threaded actuating means the actuating element being rotatable, non-rising, and driving a non-rotatable axially-sliding element
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K51/00—Other details not peculiar to particular types of valves or cut-off apparatus
- F16K51/02—Other details not peculiar to particular types of valves or cut-off apparatus specially adapted for high-vacuum installations
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve Housings (AREA)
Abstract
The invention discloses a novel assembly welding valve, which belongs to the field of valves and comprises a valve body, wherein two valve cavities which are communicated with each other are arranged in parallel on the top surface of the valve body, two fluid inlets which are respectively communicated with the bottom surfaces of the two valve cavities are arranged on the side wall of the valve body, and a fluid outlet which is communicated with one of the valve cavities is also arranged on the valve body; the valve cavities are all provided with valve assemblies, and each valve assembly comprises a valve cover, a valve seat, a valve rod, a handle and a baffle plate; the valve seat is formed on the bottom surface of the valve cavity, and the valve cover is fixed on the top surface of the valve cavity; the handle is rotatably connected to the valve cover; a sealing pressure ring is arranged between the valve body and the valve cover; the upper end of the valve rod is in threaded connection with the handle, and the valve rod is in sliding connection with the sealing pressure ring; the baffle is fixedly connected to the lower end of the valve rod; the valve rod outer wall cover is equipped with the bellows, and the bellows is connected between sealed clamping ring and baffle. The invention has reasonable design and simple structure, can effectively reduce the leakage probability and prolong the service life of the valve body.
Description
Technical Field
The invention relates to the field of valves, in particular to a novel assembly welding valve.
Background
The vacuum valve refers to a valve with working pressure lower than standard atmospheric pressure. The vacuum valve refers to a vacuum system component used for changing the direction of air flow, adjusting the magnitude of air flow and cutting off or connecting a pipeline in a vacuum system. The vacuum valve closure is sealed with a rubber or metal seal.
However, the structure of the gas circuit of the existing vacuum system is complex, the function of a single valve is single, and multiple valves are needed to be matched with each other to achieve the purpose of the vacuum system, so that the number of the valves connected and installed in the pipeline of the vacuum system is large, the operation is complex, and the use is inconvenient.
At present, the cavity of a plurality of valves is welded together in advance through the pipeline to form the way of combination valve, but this kind of valve has more welding stress point, causes the medium to reveal easily, also causes uncontrollable damage to the structure of current valve moreover, influences the life of the combination valve who forms at last, consequently, remains to design a novel assembly welding valve.
Disclosure of Invention
Aiming at the problems that the welding point of the assembly welding valve in the prior art is frequently leaked and the existing valve is greatly damaged, the invention aims to provide a novel assembly welding valve.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a novel assembly welding valve comprises a valve body, wherein two valve cavities which are concave to the interior of the valve body are arranged in parallel on the top surface of the valve body, a flow channel which is communicated with the two valve cavities is arranged in the valve body, two fluid inlets which are respectively communicated with the bottom surfaces of the two valve cavities are arranged on the side wall of the valve body, a fluid outlet is also arranged on the side wall of the valve body, and the fluid outlet is communicated with one of the valve cavities;
the valve cavities are all provided with valve assemblies, and each valve assembly comprises a valve cover, a valve seat, a valve rod, a handle and a baffle plate; the valve seat is integrally formed on the bottom surface of the valve cavity; the valve cover is fixed on the top surface of the valve body through screws or bolts; the handle is rotatably connected to the valve cover; a stepped hole is formed in the top surface of the valve body, and a sealing pressure ring in sealing fit with the valve body is arranged in the stepped hole; the valve rod and the baffle are both positioned in the valve cavity, an external thread is arranged at the upper end of the valve rod, an internal thread hole matched with the external thread is arranged at the lower end of the handle, the upper end of the valve rod penetrates through the sealing compression ring to be in threaded connection with the handle, and the outer wall of the valve rod is in sliding connection with the inner wall of the sealing compression ring; the baffle is fixedly connected to the lower end of the valve rod and is in sealing fit with the valve seat; the valve rod outer wall cover is equipped with the bellows, the upper end of bellows is connected sealed clamping ring, lower extreme are connected the baffle.
Preferably, an annular flange is formed on the outer wall of the lower end of the valve rod, a groove matched with the lower end of the valve rod is formed in the upper surface of the baffle, a connecting pressing ring is sleeved on the valve rod above the annular flange, and the connecting pressing ring is fixed to the upper surface of the baffle through screws.
Furthermore, the lower extreme of handle is provided with the shaft hole, the fixed axle sleeve that is provided with in the shaft hole, be provided with on the axle sleeve with the internal thread of external screw thread looks adaptation.
Preferably, a locking threaded hole is formed in the outer wall of the handle, a locking screw is arranged in the locking threaded hole, and the free end of the locking screw abuts against the outer wall of the shaft sleeve.
Preferably, the number of the locking screws is a plurality, and the locking screws are uniformly distributed on the same circumference of the outer wall of the handle.
Preferably, a first sealing ring is arranged between the lower end face of the sealing compression ring and the bottom face of the connecting step hole, and a first sealing groove matched with the first sealing ring is formed in the bottom face of the step hole.
Preferably, a second sealing ring is arranged between the baffle and the lower valve seat, and a second sealing groove matched with the second sealing ring is formed in the lower surface of the baffle.
Preferably, the two valve cavities are both provided with a connecting flange fixedly connected to the top surface of the valve body, and the stepped hole is formed in the connecting flange.
Furthermore, the inner wall of sealed clamping ring is fixed with the guide post, the outer wall of valve rod with the inner wall sliding connection of guide post.
Furthermore, the fluid inlet and the fluid outlet are both connected with branch pipes, and the free ends of the branch pipes are both connected with flanges.
By adopting the technical scheme, the valve body is directly provided with the inwards concave valve cavity, and the valve component is arranged in the valve cavity, so that a large amount of welding work of the assembly welding valve is avoided, the integral structural strength of the valve is improved, and the leakage possibility of a fluid medium is reduced; and because the flow passage in the valve body, the fluid outlet communicated with one of the valve cavities, the fluid inlets respectively communicated with the bottom surfaces of the two valve cavities and the valve component in the valve cavity are arranged, the two valve cavities can be used independently and can be used in parallel.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is a cross-sectional view taken along line B-B of FIG. 2;
fig. 5 is a sectional view taken along line C-C of fig. 2.
In the drawing, 1-valve body, 101-fluid inlet, 102-fluid outlet, 2-valve cavity, 3-flow channel, 4-branch pipe, 5-valve cover, 6-connecting flange, 7-valve rod, 8-handle, 9-baffle, 10-sealing press ring, 11-shaft sleeve, 12-corrugated pipe, 13-locking screw, 14-bearing, 15-guide column and 16-plug.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on structures shown in the drawings, and are only used for convenience in describing the present invention, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the technical scheme, the terms "first" and "second" are only used for referring to the same or similar structures or corresponding structures with similar functions, and are not used for ranking the importance of the structures, or comparing the sizes or other meanings.
In addition, unless expressly stated or limited otherwise, the terms "mounted" and "connected" are to be construed broadly, e.g., the connection may be a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two structures can be directly connected or indirectly connected through an intermediate medium, and the two structures can be communicated with each other. To those skilled in the art, the specific meanings of the above terms in the present invention can be understood in light of the present general concepts, in connection with the specific context of the scheme.
Example one
As shown in fig. 1-5, a novel assembly welding valve comprises a valve body 1, wherein two valve cavities 2 recessed into the valve body 1 are arranged on the top surface of the valve body 1 in parallel, and a flow passage 3 communicating the two valve cavities 2 is arranged in the valve body 1; meanwhile, the side wall of the valve body 1 is provided with two fluid inlets 101 respectively communicated with the bottom surfaces of the two valve cavities 2, and the side wall of the valve body 1 is also provided with a fluid outlet 102, and the fluid outlet 102 is communicated with one of the valve cavities 2. In this embodiment, the fluid inlet 101 and the fluid outlet 102 are both connected to a branch pipe 4, and the free ends of the branch pipes 4 are both connected to flanges for facilitating pipeline connection.
The two valve cavities 2 are both provided with a valve assembly which comprises a valve cover 5, a valve seat, a valve rod 7, a handle 8 and a baffle plate 9. The valve seat is integrally formed on the bottom surface of the valve cavity 2, and generally, the bottom surface of the valve cavity 2 is the valve seat. The valve cover 5 is fixed on the top surface of the valve body 1 through screws or bolts.
The handle 8 is rotatably connected to the valve cover 5; the handle 8 is rotatably connected to the valve cover 5 through a bearing or in a hole-shaft clearance fit manner, and the embodiment preferably provides a shaft shoulder for mounting the bearing 14 on the outer wall of the handle 8; typically, the valve cover 5 is first provided with a bearing mounting hole, and the bearing 14 is mounted in the bearing mounting hole, thereby realizing rotatable connection of the handle 8 with respect to the valve cover 5.
The top surface of the valve body 1 is provided with a step hole, and a sealing press ring 10 which is in sealing fit with the valve body 1 is arranged in the step hole. In the embodiment, the two valve cavities 2 are both provided with connecting flanges 6 fixedly connected to the top surface of the valve body 1 through screws, and the two valve cavities are preferably connected through hexagon socket head cap screws or countersunk head screws in the embodiment; the valve cover 5 is screwed to the connecting flange 6, and the stepped hole is formed in the connecting flange 6.
In this embodiment, the specific mode that valve rod 7 and baffle 9 realized fixed connection is, it has annular flange to form on the outer wall of the lower extreme that sets up valve rod 7, baffle 9 upper surface be provided with the recess of the lower extreme looks adaptation of valve rod 7, this recess can be understood its diameter and the external diameter looks adaptation of annular flange, the degree of depth of recess is enough to hold annular flange, and then the cover is equipped with the connection clamping ring on the valve rod 7 outer wall of annular flange top, should connect the clamping ring and pass through the upper surface of fix with screw at baffle 9. According to the arrangement, the annular flange can be pressed by the inner edge of the connecting pressing ring, the outer edge of the connecting pressing ring is fixed on the baffle plate 9 through the screw, so that when the valve rod 7 descends, the baffle plate 9 can be pressed on the valve seat, and when the valve rod 7 ascends, the baffle plate 9 can be taken up.
Wherein, the valve rod 7 outer wall cover is equipped with bellows 12, and this bellows 12 is the metal bellows, and for example the shaping bellows can all be all, and the upper end welded connection sealing ring 10's lower terminal surface, the lower extreme welded connection baffle 9's of this bellows 12 up end to protect valve rod 7, prevent it and fluid medium contact.
In this embodiment, a first sealing ring is disposed between the lower end surface of the sealing press ring 10 and the bottom surface of the stepped hole, specifically, a first sealing groove adapted to the first sealing ring is disposed on the bottom surface of the stepped hole, and the first sealing ring is mounted in the first sealing groove.
Meanwhile, a second sealing ring is arranged between the baffle plate 9 and the valve seat, a second sealing groove matched with the second sealing ring is formed in the lower surface of the baffle plate 9, the second sealing ring is installed in the second sealing groove, and meanwhile, in order to prevent the second sealing ring from falling off from the second sealing groove, the opening width of the second sealing groove is smaller than the diameter of the second sealing ring, so that the cross section of the second sealing groove is integrally in a dovetail shape.
In this embodiment, a through hole is further formed in the side wall of the valve body 1, the through hole is communicated with the same valve cavity 2 as the fluid outlet 102, and the through hole is closed by a plug 16.
When the valve is used, the valve rod 7 can be driven to axially move by screwing the handle 8, so that the baffle plate 9 is driven to be attached to or separated from the valve seat, and the effect of plugging and opening the fluid inlet 101 is realized; in practical use, the two valve cavities 2 are respectively connected with a pipeline through a branch pipe 4 on the fluid inlet 101, namely a first fluid inlet pipe and a second fluid inlet pipe, and the branch pipe 4 on the fluid outlet of the valve body 1 is connected with a fluid outlet pipe; however, when the vacuum system only needs to conduct the first fluid inlet pipe and the first fluid outlet pipe, the second fluid inlet pipe can be closed only by plugging the baffle plate 8 in the other valve cavity 2 on the valve seat; on the contrary, when the second fluid inlet pipe and the second fluid outlet pipe need to be communicated, the first fluid inlet pipe can be closed only by plugging the baffle plate 8 in the previous valve cavity 2 on the valve seat; when the first fluid inlet pipe, the second fluid inlet pipe and the fluid outlet pipe are required to form a passage at the same time, the baffle plates 8 in the two valve cavities 2 are only required to be far away from the seat 6. The novel assembly welding valve has the advantages of few welding points, good sealing effect, no damage to structural strength, capability of effectively prolonging the service life of the valve body and convenience in operation and use.
Example two
The difference from the first embodiment is that: in this embodiment, the handle 8 is not directly connected to the valve rod 7 by a screw, but a shaft hole is first formed at the lower end of the handle 8, and a shaft sleeve 11 is fixedly disposed in the shaft hole, and the shaft sleeve 11 is provided with an internal thread adapted to the external thread on the valve rod 7.
Meanwhile, a locking threaded hole is formed in the outer wall of the handle 8, a locking screw 13 is arranged in the locking threaded hole, and the free end of the locking screw 13 abuts against the outer wall of the shaft sleeve 11, so that the shaft sleeve 11 is fixed by screwing the locking screw 13. In order to make the fixing of the locking screw 13 to the shaft sleeve 11 more stable and firm, in the embodiment, a plurality of locking screws 13 are provided, and a plurality of locking screws 13 are configured to be uniformly distributed on the same circumference of the outer wall of the handle 8.
Of course, in another embodiment, the sleeve 11 may be directly welded into the shaft hole of the handle 8, so that the sleeve 11 is fixed relative to the handle 8.
EXAMPLE III
The difference from the first embodiment is that: in this embodiment, the sealing press ring 10 is not directly contacted with the outer wall of the valve rod 7, but a guide post 15 is fixed on the inner wall of the sealing press ring 10, the guide post 15 is hollow, the cross section of the hollow inner wall is non-circular, and correspondingly, a guide section matched with the hollow section of the guide post 15 is arranged on the outer wall of the valve rod 7. For example, in this embodiment, the hollow interior wall of the guide post 15 includes two parallel and opposing planar sidewalls connected by two semicircular sidewalls.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, and the scope of protection is still within the scope of the invention.
Claims (10)
1. The utility model provides a novel assembly welding valve which characterized in that: the valve comprises a valve body, wherein two valve cavities which are concave towards the interior of the valve body are arranged in parallel on the top surface of the valve body, a flow channel which is communicated with the two valve cavities is arranged in the valve body, two fluid inlets which are respectively communicated with the bottom surfaces of the two valve cavities are arranged on the side wall of the valve body, and a fluid outlet is also arranged on the side wall of the valve body and is communicated with one of the two valve cavities;
the valve cavities are all provided with valve assemblies, and each valve assembly comprises a valve cover, a valve seat, a valve rod, a handle and a baffle plate; the valve seat is integrally formed on the bottom surface of the valve cavity; the valve cover is fixed on the top surface of the valve body through screws or bolts; the handle is rotatably connected to the valve cover; a stepped hole is formed in the top surface of the valve body, and a sealing pressure ring in sealing fit with the valve body is arranged in the stepped hole; the valve rod and the baffle are both positioned in the valve cavity, an external thread is arranged at the upper end of the valve rod, an internal thread hole matched with the external thread is arranged at the lower end of the handle, the upper end of the valve rod penetrates through the sealing compression ring to be in threaded connection with the handle, and the outer wall of the valve rod is in sliding connection with the inner wall of the sealing compression ring; the baffle is fixedly connected to the lower end of the valve rod and is in sealing fit with the valve seat; the valve rod outer wall cover is equipped with the bellows, the upper end of bellows is connected sealed clamping ring, lower extreme are connected the baffle.
2. The novel assembly welding valve of claim 1, characterized in that: the valve rod is characterized in that an annular flange is formed on the outer wall of the lower end of the valve rod, a groove matched with the lower end of the valve rod is formed in the upper surface of the baffle, a connecting pressing ring is sleeved on the valve rod above the annular flange, and the connecting pressing ring is fixed to the upper surface of the baffle through screws.
3. The novel assembly welding valve of claim 1, characterized in that: the lower extreme of handle is provided with the shaft hole, the fixed axle sleeve that is provided with in the shaft hole, be provided with on the axle sleeve with the internal thread of external screw thread looks adaptation.
4. The novel assembly welding valve of claim 3, characterized in that: the handle is characterized in that a locking threaded hole is formed in the outer wall of the handle, a locking screw is arranged in the locking threaded hole, and the free end of the locking screw abuts against the outer wall of the shaft sleeve.
5. The novel assembly welding valve of claim 4, characterized in that: the locking screws are uniformly distributed on the same circumference of the outer wall of the handle.
6. The novel assembly welding valve of claim 1, characterized in that: the lower end face of the sealing compression ring and the bottom face of the connecting step hole are provided with a first sealing ring, and the bottom face of the step hole is provided with a first sealing groove matched with the first sealing ring.
7. The novel assembly welding valve of claim 1, characterized in that: and a second sealing ring is arranged between the baffle and the lower valve seat, and a second sealing groove matched with the second sealing ring is formed in the lower surface of the baffle.
8. The novel assembly welding valve of claim 1, characterized in that: two valve chambeies all dispose fixed connection the flange of valve body top surface, the step hole sets up on the flange.
9. The novel assembly welding valve of claim 1, characterized in that: the inner wall of the sealing compression ring is fixed with a guide post, and the outer wall of the valve rod is connected with the inner wall of the guide post in a sliding mode.
10. The novel assembly welding valve of claim 1, characterized in that: the fluid inlet and the fluid outlet are both connected with branch pipes, and the free ends of the branch pipes are both connected with flanges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911275707.2A CN111102381A (en) | 2019-12-12 | 2019-12-12 | Novel assembly welding valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911275707.2A CN111102381A (en) | 2019-12-12 | 2019-12-12 | Novel assembly welding valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111102381A true CN111102381A (en) | 2020-05-05 |
Family
ID=70423348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911275707.2A Pending CN111102381A (en) | 2019-12-12 | 2019-12-12 | Novel assembly welding valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111102381A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111870162A (en) * | 2020-07-10 | 2020-11-03 | 临海伟星新型建材有限公司 | Concealed shower system |
| CN117052953A (en) * | 2023-10-12 | 2023-11-14 | 海普瑞(常州)洁净系统科技有限公司 | Triple valve for semiconductor and working method thereof |
-
2019
- 2019-12-12 CN CN201911275707.2A patent/CN111102381A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111870162A (en) * | 2020-07-10 | 2020-11-03 | 临海伟星新型建材有限公司 | Concealed shower system |
| CN117052953A (en) * | 2023-10-12 | 2023-11-14 | 海普瑞(常州)洁净系统科技有限公司 | Triple valve for semiconductor and working method thereof |
| CN117052953B (en) * | 2023-10-12 | 2024-01-30 | 海普瑞(常州)洁净系统科技有限公司 | Triple valve for semiconductor and working method thereof |
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