CN215059927U - On-off control valve for gas or liquid - Google Patents
On-off control valve for gas or liquid Download PDFInfo
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- CN215059927U CN215059927U CN202121332653.1U CN202121332653U CN215059927U CN 215059927 U CN215059927 U CN 215059927U CN 202121332653 U CN202121332653 U CN 202121332653U CN 215059927 U CN215059927 U CN 215059927U
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- end cover
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Abstract
The utility model relates to a switch control valve that gas or liquid were used, it includes: the left end and the right end of the sleeve are respectively connected with a left end cover and a right end cover, a left outlet hole is formed in the left end cover, and a right inlet hole is formed in the right end cover; the inner hole of the sleeve is connected with a conical core, one end of the conical core is sleeved with a compression spring, and the outer end of the compression spring is connected with the inner end of the right end cover; one end of the conical core is connected with a movable connecting rod; one end of the sleeve is provided with an inner end cover, a gas pressure cavity is formed between the inner end cover and the conical core, a diaphragm is arranged in the sleeve, and the diaphragm is matched with the left outlet hole; the inner side of the left end cover is connected with a diaphragm pressing sheet; when the sleeve, the left end cover, the diaphragm pressing sheet, the diaphragm, the inner end cover and the right end cover are assembled, a complete channel for gas or liquid circulation is formed; the sleeve is provided with a pneumatic control port. The utility model discloses fluid passage adopts the structure of straight-in straight-out, and furthest ensures that fluid passage is smooth and easy, does not produce the dead angle to prevent to cause electrolyte to remain the crystallization phenomenon who causes.
Description
Technical Field
The utility model relates to an industrial automation or lithium cell make technical field, especially relate to a switch control valve that gas or liquid were used.
Background
In the manufacturing process of the existing lithium battery, in the liquid injection process, firstly, the battery core needs to be vacuumized, and then, the electrolyte needs to be injected, so that the electrolyte injection control valve which can be used for positive and negative pressure control is needed.
Most of the control valves on the existing market are single control valves, namely control valves for positive pressure liquid or vacuum control valves for vacuum control, and few control valves can control liquid and vacuum.
Due to the characteristics of the electrolyte material, crystallization is easily generated in the control valve body in the electrolyte injection process; the electrolyte is a highly corrosive liquid due to the characteristics of the material of the electrolyte, and therefore the material used for the control valve should be resistant to corrosion by the electrolyte.
In summary, in the lithium battery manufacturing industry, no control valve with pertinence can meet the requirements in the current market for controlling the liquid injection of the electrolyte.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
In order to solve the above problems in the prior art, the utility model provides a switch control valve for gas or liquid, fluid passage adopt the structure of going straight out, and furthest ensures that fluid passage is smooth and easy, does not produce the dead angle to prevent to cause electrolyte to remain the crystallization phenomenon who causes.
(II) technical scheme
In order to achieve the above object, the utility model discloses a main technical scheme include:
a switch control valve for a gas or liquid, comprising: the left end and the right end of the sleeve are respectively connected with a left end cover and a right end cover, a left outlet hole for gas or liquid circulation is formed in the left end cover, and a right inlet hole for gas or liquid circulation is formed in the right end cover; a conical core is connected to the inner hole of the sleeve, the conical core moves in the inner hole of the sleeve, a compression spring is sleeved at one end, close to the right end cover, of the conical core, and the outer end of the compression spring is connected with the inner end of the right end cover; one end of the conical core close to the left end cover is connected with a movable connecting rod; an inner end cover is arranged at one end, close to the left end cover, in the sleeve, one end of the conical core penetrates through the inner end cover, a pneumatic cavity is formed between the inner end cover and the conical core, a diaphragm is arranged in the sleeve and is positioned between the inner end cover and the left end cover, a diaphragm pressing sheet is arranged between the left end cover and the diaphragm, one end, close to the left end cover, of the movable connecting rod is matched with the diaphragm, and the diaphragm is matched with the left outlet hole;
the diaphragm pressing sheet is provided with a pressing sheet through hole, the diaphragm is provided with a diaphragm through hole, the inner end cover is provided with an inner end cover through hole, the sleeve is provided with a flow channel, and after the sleeve, the left end cover, the diaphragm pressing sheet, the diaphragm, the inner end cover and the right end cover are assembled, the left outlet hole, the pressing sheet through hole, the diaphragm through hole, the inner end cover through hole, the flow channel and the right inlet hole are sequentially communicated to form a complete channel for gas or liquid circulation; the sleeve is provided with an air control port which is communicated with an air pressure cavity formed between the inner end cover and the conical core;
the movable connecting rod is connected to the conical core through a fixing pin, a stroke hole is formed in the movable connecting rod, and the fixing pin penetrates through the stroke hole.
Furthermore, a set screw is connected in the sleeve, the inner end cover, the diaphragm and the diaphragm pressing plate are sequentially arranged on the set screw in a penetrating mode respectively, and connecting holes matched with the set screw are formed in the inner end cover, the diaphragm and the diaphragm pressing plate respectively.
Furthermore, the end part of the conical core, which is close to the right end cover, is connected with a buffer pad, and the buffer pad is matched with the right end cover.
Furthermore, the inner end cover is connected with a second leather wrist, and the second leather wrist is matched with the conical core.
Furthermore, third O-shaped rings are respectively arranged between the inner end cover and the sleeve and between the right end cover and the inner hole of the sleeve.
Furthermore, a magnetic ring is connected to the conical core.
Furthermore, a first leather wrist is sleeved on the conical core; the joints of the left end cover and the right end cover with the sleeve are respectively provided with a second 0 ring; and the outer sides of the left end cover and the right end cover are respectively connected with a first O-shaped ring.
Further, the inner side of the right end cover is provided with a spring guide seat.
Furthermore, a flow guide block is arranged on the inner side of the right end cover.
(III) advantageous effects
The utility model has the advantages that: the fluid channel adopts a straight-in and straight-out structure, so that the smoothness of the fluid channel is ensured to the maximum extent, no dead angle is generated, and the crystallization phenomenon caused by electrolyte residue is prevented;
the sleeve and the internal components are made of corrosion-resistant materials, and the control part of the valve is strictly separated from the fluid channel by a diaphragm, so that the valve is particularly suitable for on-off control of various corrosive fluids such as electrolyte and the like;
in order to ensure the smoothness of a flow channel of the control valve and prevent the main channel hole on the diaphragm and the main channel hole on the valve body from being dislocated in the assembling process or the working process of the control valve, the diaphragm pressing sheet, the diaphragm, the inner end cover and the sleeve are positioned by two 316 stainless steel flat end set screws.
Drawings
Fig. 1 is a structural sectional view of an embodiment 1 of the present invention;
FIG. 2 is an exploded view of the structure of an embodiment 1 of the present invention
Fig. 3 is a sectional view of a movable connecting rod structure according to an embodiment 1 of the present invention;
fig. 4 is a schematic view of the vacuum state of embodiment 1 of the present invention;
fig. 5 is a schematic view of an injection state according to embodiment 1 of the present invention;
fig. 6 is a schematic view of a closed state according to embodiment 1 of the present invention;
fig. 7 is an exploded view of the structure of an embodiment 2 of the present invention;
fig. 8 is an exploded view of a structure according to embodiment 3 of the present invention.
Detailed Description
For a better understanding of the present invention, reference will now be made in detail to the present invention, examples of which are illustrated in the accompanying drawings.
Example 1
An on-off control valve for gas or liquid according to an embodiment of the present invention, as shown in fig. 1 to 3, includes: the left end and the right end of the sleeve 15 are respectively connected with a left end cover 2 and a right end cover 14, a left outlet hole 23 for gas or liquid circulation is formed in the left end cover 2, and a right inlet hole 1401 for gas or liquid circulation is formed in the right end cover 14; the inner hole of the sleeve 15 is connected with a conical core 11, the conical core 11 moves in the inner hole of the sleeve 15, one end of the conical core 11 close to the right end cover 14 is sleeved with a compression spring 13, and the outer end of the compression spring 13 is connected with the inner end of the right end cover 14; one end of the cone core 11, which is close to the left end cover 2, is connected with a movable connecting rod 4, the movable connecting rod 4 is connected to the cone core 11 through a fixing pin 19, a stroke hole 41 is formed in the movable connecting rod 4, the fixing pin 19 is arranged in the stroke hole 41 in a penetrating manner, the cone core 11 drives the movable connecting rod 4 to move on an inner hole of the sleeve 15, and the movable connecting rod 4 is enabled to perform secondary stroke action in a negative pressure state by adopting the stroke hole 41, so that the valve body can also work in the negative pressure state; an inner end cover 6 is arranged at one end, close to the left end cover 2, in the sleeve 15, one end of the conical core 11 is arranged on the inner end cover 6 in a penetrating mode, an air pressure cavity is formed between the inner end cover 6 and the conical core 11, the air pressure cavity is a part of an inner hole of the sleeve 15, and the air pressure cavity is formed by matching the inner end cover 6 and the conical core 11, so that the structure of the air pressure cavity is particularly explained for convenience of explanation; the diaphragm 21 is arranged in the sleeve 15, the diaphragm 21 is located between the inner end cover 6 and the left end cover 2, the diaphragm pressing piece 5 is arranged between the left end cover 2 and the diaphragm 21, one end, close to the left end cover 2, of the movable connecting rod 4 is matched with the diaphragm 21, the diaphragm 21 is matched with the left outlet hole 23, when the cone core 11 drives the movable connecting rod 4 to move leftwards, the diaphragm 21 is matched with the left outlet hole 23 to form a closed state of the left outlet hole 23, and otherwise, the left outlet hole 23 is in an open state.
Specifically, a set screw 22 is connected in the sleeve 15, the inner end cap 6, the diaphragm 21 and the diaphragm pressing plate 5 are sequentially arranged on the set screw 22 in a penetrating manner, connecting holes matched with the set screw 22 are respectively formed in the inner end cap 6, the diaphragm 21 and the diaphragm pressing plate 5, the set screw 22 is used for limiting and fixing the diaphragm pressing plate 5, the diaphragm 21 and the inner end cap 6, and the set screw 22 is in threaded connection with the sleeve 15.
Specifically, the diaphragm pressing sheet 5 is provided with a pressing sheet through hole 51, the diaphragm 21 is provided with a diaphragm through hole 211, the inner end cover 6 is provided with an inner end cover through hole 61, the sleeve 15 is provided with a flow channel 151, and after the sleeve 15, the left end cover 2, the diaphragm pressing sheet 5, the diaphragm 21, the inner end cover 6 and the right end cover 14 are assembled, the left outlet hole 23, the pressing sheet through hole 51, the diaphragm through hole 211, the inner end cover through hole 61, the flow channel 151 and the right inlet hole 1401 are sequentially communicated to form a complete channel for gas or liquid circulation.
Specifically, the sleeve 15 is provided with an air control port 152, the air control port 152 is communicated with an air pressure cavity formed between the inner end cover 6 and the conical core 11, the conical core 11 is pushed to move on an inner hole of the sleeve 15 through air pressure entering the air pressure cavity, the movable connecting rod 4 is driven to move rightwards, the compression spring 13 is compressed, and at the moment, the left outlet hole 23, the pressing sheet through hole 51, the diaphragm through hole 211, the inner end cover through hole 61, the flow channel 151 and the right inlet hole 1401 are sequentially communicated to form a complete channel for gas or liquid circulation to be in an open state, so that gas or liquid circulation can be performed; when the air pressure of the air control port 152 is removed, the compression spring 13 rebounds under the action of the elastic force to drive the movable connecting rod 4 to move leftwards, and the diaphragm 21 is matched with the left outlet hole 23 to form a closed state of the left outlet hole 23.
Further, a buffer pad 12 is connected to the end of the cone core 11 close to the right end cover 14, and the buffer pad 12 is matched with the right end cover 14 for buffering the acting force of the cone core 11.
Furthermore, a second leather wrist 18 is connected to the inner end cover 6, and the second leather wrist 18 is matched with the conical core 11, so that a better sealing effect is achieved.
Further, third O-rings 20 are respectively arranged between the inner end cover 6 and the sleeve 15 and between the right end cover 14 and the inner hole of the sleeve 15.
Further, in order to facilitate the installation of the compression spring 13, a magnetic ring 16 is connected to the conical core 11 through a gasket 10.
Further, in order to make the conical core 11 and the sleeve 15 be in sealing fit, a first wrist 17 is sleeved on the conical core 11 to prevent gas or liquid from leaking from the connection between the conical core 11 and the inner hole of the sleeve 15.
Furthermore, the joints of the left end cover 2 and the right end cover 14 with the sleeve 15 are respectively provided with a second 0 ring 3, so that the sealing property between the two is improved; and the outer sides of the left end cover 2 and the right end cover 14 are respectively connected with a first O-shaped ring 1.
Further, the sleeve 15 is connected with a CKD magnetic switch 7 and a magnetic switch pressing sheet 8 through a round-head screw 9, the CKD magnetic switch 7 is matched with a magnetic ring 16, and a position signal of the magnetic ring 16 is fed back to the CKD magnetic switch 7.
When the pneumatic control valve is used, after the pneumatic control port 152 controls the air pressure to be released, the conical core 11 moves leftwards under the action of the spring force of the compression spring 13, generates relative displacement with the movable connecting rod, is tightly attached to the flange shaft step end face at the front end of the movable connecting rod 4 and continues to move forwards, pushes the diaphragm 21 to move forwards and deform, and finally, the diaphragm 21 is tightly attached to the left outlet hole 23, and the valve is closed, as shown in fig. 6.
After the air control port 152 inputs the control air pressure, the conical core 11 overcomes the spring force to move rightwards under the action of the control air pressure, the conical core and the movable connecting rod generate a separation displacement, the diaphragm 21 recovers the displacement before deformation, the left outlet hole 23 starts to be opened, when positive pressure gas or liquid is connected into the complete channel, the diaphragm and the movable connecting rod 4 continue to move rightwards under the action of the positive pressure, the diaphragm deforms, until the movable connecting rod 4 moves rightwards to enable the valve to be opened to the maximum, and the valve is in an open state, as shown in fig. 4.
When the complete channel is accessed with a negative pressure vacuum, the diaphragm moves leftwards together with the movable connecting rod 4 under the action of the negative pressure, the movable connecting rod 4 moves away from the conical core 11 and is limited by the relative positions of the fixed pin and the stroke hole, when the movable connecting rod 4 moves away to the maximum position, the diaphragm 21 cannot continuously move forwards and deform, the diaphragm 21 and the left outlet hole 23 keep a certain opening degree, and the valve body is in an open state, as shown in fig. 5; therefore, the structure can be used for control under positive and negative pressure environments.
The complete channel of the fluid adopts a straight-in and straight-out structure, so that the smoothness of the fluid channel is ensured to the maximum extent, no dead angle is generated, and the crystallization phenomenon caused by electrolyte residue is prevented; the valve body and the internal components are made of corrosion-resistant materials, and the control part of the valve is strictly separated from the fluid channel by adopting a diaphragm, so that the valve is particularly suitable for on-off control of various corrosive fluids such as electrolyte and the like; in order to ensure the smoothness of a flow channel of the control valve and prevent the main channel hole on the diaphragm and the main channel hole on the valve body from being dislocated in the assembling process or the working process of the control valve, the diaphragm pressing sheet, the diaphragm, the inner end cover and the sleeve are positioned by two 316 stainless steel flat end set screws.
Example 2
As shown in fig. 7, embodiment 2 differs from embodiment 1 in that: the inner side of the right end cover 14 is connected with a spring guide seat 24 matched with the compression spring 13, the top of the spring guide seat 24 extends outwards to form a plurality of guide blocks arranged at intervals, and a flow guide hole is formed between every two adjacent guide blocks and used for guiding gas or liquid.
Example 3
As shown in fig. 8, embodiment 3 differs from embodiment 2 in that: a flow guide block 25 is arranged between the spring guide seat 24 and the right end cover 14 and is used for guiding gas or liquid.
The above is only the preferred embodiment of the present invention, and all the equivalent changes and modifications made according to the claims of the present invention should be covered by the present invention.
Claims (9)
1. An on-off control valve for a gas or liquid, comprising: the gas or liquid flow control valve comprises a sleeve (15), wherein the left end and the right end of the sleeve (15) are respectively connected with a left end cover (2) and a right end cover (14), a left outlet hole (23) for gas or liquid to flow through is formed in the left end cover (2), and a right inlet hole (1401) for gas or liquid to flow through is formed in the right end cover (14); a conical core (11) is connected to an inner hole of the sleeve (15), the conical core (11) moves in the inner hole of the sleeve (15), a compression spring (13) is sleeved at one end, close to the right end cover (14), of the conical core (11), and the outer end of the compression spring (13) is connected with the inner end of the right end cover (14); one end of the conical core (11) close to the left end cover (2) is connected with a movable connecting rod (4); an inner end cover (6) is arranged at one end, close to the left end cover (2), in the sleeve (15), one end of the conical core (11) penetrates through the inner end cover (6), an air pressure cavity is formed between the inner end cover (6) and the conical core (11), a diaphragm (21) is arranged in the sleeve (15), the diaphragm (21) is located between the inner end cover (6) and the left end cover (2), a diaphragm pressing sheet (5) is arranged between the left end cover (2) and the diaphragm (21), one end, close to the left end cover (2), of the movable connecting rod (4) is matched with the diaphragm (21), and the diaphragm (21) is matched with the left outlet hole (23);
the diaphragm pressing sheet (5) is provided with a pressing sheet through hole (51), the diaphragm (21) is provided with a diaphragm through hole (211), the inner end cover (6) is provided with an inner end cover through hole (61), the sleeve (15) is provided with a flow channel (151), and after the sleeve (15), the left end cover (2), the diaphragm pressing sheet (5), the diaphragm (21), the inner end cover (6) and the right end cover (14) are assembled, the left outlet hole (23), the pressing sheet through hole (51), the diaphragm through hole (211), the inner end cover through hole (61), the flow channel (151) and the right inlet hole (1401) are sequentially communicated to form a complete channel for gas or liquid circulation; the sleeve (15) is provided with an air control port (152), and the air control port (152) is communicated with an air pressure cavity formed between the inner end cover (6) and the conical core (11);
the movable connecting rod (4) is connected to the conical core (11) through a fixing pin (19), a stroke hole (41) is formed in the movable connecting rod (4), and the fixing pin (19) penetrates through the stroke hole (41).
2. A switching control valve for gas or liquid according to claim 1, wherein: set screws (22) are connected in the sleeve (15), the inner end cover (6), the diaphragm (21) and the diaphragm pressing plate (5) are sequentially arranged on the set screws (22) in a penetrating mode respectively, and connecting holes matched with the set screws (22) are formed in the inner end cover (6), the diaphragm (21) and the diaphragm pressing plate (5) respectively.
3. A switching control valve for gas or liquid according to claim 1, wherein: the end part of the conical core (11) close to the right end cover (14) is connected with a buffer pad (12), and the buffer pad (12) is matched with the right end cover (14).
4. A switching control valve for gas or liquid according to claim 1, wherein: the inner end cover (6) is connected with a second leather wrist (18), and the second leather wrist (18) is matched with the conical core (11).
5. A switching control valve for gas or liquid according to claim 1, wherein: and third O-shaped rings (20) are respectively arranged between the inner end cover (6) and the sleeve (15) and between the right end cover (14) and the inner hole of the sleeve (15).
6. A switching control valve for gas or liquid according to claim 1, wherein: the conical core (11) is connected with a magnetic ring (16).
7. A switching control valve for gas or liquid according to claim 1, wherein: a first leather wrist (17) is sleeved on the conical core (11); the joints of the left end cover (2) and the right end cover (14) and the sleeve (15) are respectively provided with a second 0 ring (3); the outer sides of the left end cover (2) and the right end cover (14) are respectively connected with a first O-shaped ring (1).
8. A switching control valve for gas or liquid according to claim 1, wherein: and a spring guide seat (24) is arranged on the inner side of the right end cover (14).
9. A switching control valve for gas or liquid as claimed in claim 1 or 8, wherein: and a flow guide block (25) is arranged on the inner side of the right end cover (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121332653.1U CN215059927U (en) | 2021-06-16 | 2021-06-16 | On-off control valve for gas or liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121332653.1U CN215059927U (en) | 2021-06-16 | 2021-06-16 | On-off control valve for gas or liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215059927U true CN215059927U (en) | 2021-12-07 |
Family
ID=79203610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121332653.1U Active CN215059927U (en) | 2021-06-16 | 2021-06-16 | On-off control valve for gas or liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215059927U (en) |
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2021
- 2021-06-16 CN CN202121332653.1U patent/CN215059927U/en active Active
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