CN220980376U - Straight-through stop valve - Google Patents
Straight-through stop valve Download PDFInfo
- Publication number
- CN220980376U CN220980376U CN202322827370.XU CN202322827370U CN220980376U CN 220980376 U CN220980376 U CN 220980376U CN 202322827370 U CN202322827370 U CN 202322827370U CN 220980376 U CN220980376 U CN 220980376U
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- straight
- connecting shaft
- shaft
- valve
- short column
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- 238000007789 sealing Methods 0.000 claims abstract description 55
- 238000009434 installation Methods 0.000 claims abstract description 22
- 238000003825 pressing Methods 0.000 claims description 16
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000013016 damping Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
The utility model discloses a straight-through stop valve, which relates to the technical field of stop valves and comprises a valve seat main body, an opening and closing control unit and an installation sealing unit; two sides of the lower end of the valve seat main body are communicated with a transverse straight through pipe; the opening and closing control unit comprises a mounting hole, a flow control cavity, a spherical valve clack, a connecting shaft, a screwing block and a connecting seat, wherein the spherical valve clack is tightly connected in a rotating manner in the flow control cavity, a circular channel is horizontally formed in the middle of the spherical valve clack, and the diameter and the height of the channel are consistent with those of the straight-through pipe; the installation sealing unit is installed at the outside of the connecting shaft. The utility model can conveniently and effectively realize the sealing or opening of the direct current pipeline through the mutual matching of the spherical valve clack and the flow control cavity, is convenient for installing the valve body part, and can enable the shaft body to move and seal the joint while installing and fixing the cover body.
Description
Technical Field
The utility model relates to the technical field of stop valves, in particular to a straight-through stop valve.
Background
A shut-off valve, also called a shut-off valve, is one of the most widely used valves; the straight-through stop valve is one of the common valves, and the valve rod pressure is used for tightly combining the valve clack sealing surface with the valve seat sealing surface to prevent medium circulation. The valve has the characteristics of small friction force between sealing surfaces in the opening and closing process, wear resistance, small opening height, good manufacturing process performance and the like, and is the most widely used valve in the industrial department;
In the prior art, most of valve clack parts of the straight-through stop valve are disc-shaped structures with flat or conical ends, and the valve clack structures are not simple and effective enough in realizing the switching of opening and closing of the valve body.
Disclosure of utility model
The utility model aims to overcome the prior art, and provides the straight-through stop valve which is provided with the reliable opening and closing control unit, can conveniently and effectively realize the closing or opening of a direct-current pipeline through the mutual matching of the spherical valve clack and the flow control cavity, is provided with the reliable mounting and sealing unit, can be convenient for mounting a valve body part, can mount and fix a cover body, can enable a shaft body to move and seal a joint part, and can effectively solve the problems in the background art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a straight-through stop valve comprises a valve seat main body, an opening and closing control unit and an installation sealing unit;
Valve seat body: is of a vertical cylindrical structure, and two sides of the lower end of the valve seat main body are communicated with a transverse straight through pipe;
An opening/closing control unit: the valve seat comprises a mounting hole, a flow control cavity, a spherical valve clack, a connecting shaft, a screwing block and a connecting seat, wherein the mounting hole is formed in the upper end of the valve seat main body, threads are formed in the upper half section of the mounting hole, the flow control cavity is a spherical cavity and is arranged at the vertical joint of the mounting hole and the axis of a straight-through pipe, the spherical valve clack is tightly connected in a rotating mode in the flow control cavity, a circular channel is horizontally formed in the middle of the spherical valve clack, the diameter and the height of the channel are consistent with those of the straight-through pipe, the connecting seat is fixedly connected to the upper end of the spherical valve clack, the lower end of the connecting shaft is clamped in the connecting seat, and the upper end of the connecting shaft penetrates through the mounting hole and is fixedly connected with the middle of the screwing block;
and (3) installing a sealing unit: is arranged on the outer side of the connecting shaft.
The valve seat main body is used for installing the installation hole and controlling the seting up of flow cavity, the mounting hole is used for the installation of valve body part, the connecting axle is used for spherical valve clack and revolves to twist the transmission connection between the piece, through twisting and revolve the piece, drive spherical valve clack and rotate in the level of flow control cavity, when revolve the piece and twist to the direction parallel with the straight-through pipe, when circular passageway and the straight-through pipe intercommunication of seting up in the middle part of spherical valve clack, the stop valve changes the state of opening, when revolve the piece and twist to the direction perpendicular with the straight-through pipe, spherical valve clack blocks up in the connector department of straight-through pipe and valve seat main body, the stop valve changes the state, the connecting seat is used for the cartridge of connecting axle, and the connecting seat can insert and rotate and connect in the lower port department of mounting hole, thereby realize to control the shutoff of flow cavity upside region, install sealing unit is used for can installing the valve body part, when installing fixedly to the lid and make the axis body can be movable, and seal the junction.
Further, the switching control unit further comprises a plugging clamping groove and a plugging clamping block, a slotted hole which is equal in size with the end part of the connecting shaft is formed in the connecting seat, two symmetrical plugging clamping blocks are fixedly connected to the inner wall of the slotted hole, the left and right plugging clamping grooves are formed in the lower end of the connecting shaft, and the plugging clamping blocks are clamped in the plugging clamping grooves. The connecting shaft is vertically inserted into the connecting seat, and the inserting clamping grooves on two sides are clamped with the inserting clamping blocks, so that the connecting shaft is clamped and fixed, and the relative fixation between the spherical valve clack and the connecting shaft is maintained.
Further, the installation sealing unit comprises a screw short column and a pressing cap, the screw short column and the pressing cap are concentrically connected to the outer portion of the connecting shaft in a rotating mode, the pressing cap is located at the upper end of the screw short column and fixedly connected with the screw short column, the screw short column is screwed and connected to the inner portion of the installation hole, and the section of the connecting shaft located on the lower side of the screw short column is larger than the upper side in size. The screw thread short column is screwed and connected with the mounting hole, and then the pressing cap is pressed on the upper end of the valve seat main body, and the section of the connecting shaft positioned on the lower side of the screw thread short column is larger than the upper side in size, so that the screw thread short column can also play a limiting role on the connecting shaft in the vertical direction.
Further, the installation sealing unit further comprises a middle shaft clamping block and a connecting short rod, the lower half section of the installation hole is fixedly connected with the middle shaft clamping block through three connecting short rods in a circumferential array, the middle shaft clamping block is of an annular structure and internally provided with threads, one section of the connecting shaft, which is positioned on the threaded short column, is provided with shorter threads, and the connecting shaft is in threaded connection with the middle shaft clamping block through the end threads. The connecting short rod is used for connecting and fixing the middle shaft clamping block, the connecting shaft is in threaded connection with the middle shaft clamping block through a short one-end thread, and therefore a certain damping feedback can be provided when the screwing block is screwed, and the screwing block can be kept in a vertical state through screwing when the valve body is closed.
Furthermore, the installation sealing unit further comprises a shaft sealing ring and an end cover sealing ring, the shaft sealing ring is embedded and installed at the lower end of the threaded short column and close to the connecting shaft, and the end cover sealing ring is installed at the lower end of the pressing cap. The shaft part sealing ring is used for sealing the movable joint of the connecting shaft, and the end cover sealing ring is used for sealing the pressing cap and the valve seat main body.
Further, the connecting device further comprises a connecting flange, the connecting flange is fixedly connected to the port of the straight-through pipe, and bolt insertion holes are formed in the end face of the connecting flange in a circumferential array. The connecting flange is used for connecting the valve seat main body with an external pipeline.
Compared with the prior art, the utility model has the beneficial effects that: the straight-through stop valve has the following advantages:
1. The direct-current pipeline opening and closing control device has a reliable opening and closing control unit, and can conveniently and effectively realize the closing or opening of the direct-current pipeline through the mutual matching of the spherical valve clack and the flow control cavity: the connecting shaft is used for driving connection between the spherical valve clack and the screwing block, the screwing block is screwed to drive the spherical valve clack to horizontally rotate in the flow control cavity, when the screwing block is screwed to the direction parallel to the straight-through pipe, the stop valve is converted into an open state when a circular channel formed in the middle of the spherical valve clack is communicated with the straight-through pipe, when the screwing block is screwed to the direction perpendicular to the straight-through pipe, the spherical valve clack is blocked at a connection port of the straight-through pipe and the valve seat main body, and the stop valve is converted into a closed state;
2. The sealing unit is reliable in installation, can be convenient for install the valve body part, can make the shaft body movable when the cover body is installed and fixed, and seals the joint: the threaded short column is screwed with the mounting hole, so that the pressing cap is pressed on the upper end of the valve seat main body, and the section of the connecting shaft, which is positioned on the lower side of the threaded short column, is larger than the upper side, so that the threaded short column can also play a limiting role on the connecting shaft in the vertical direction; the connecting seat is used for inserting the connecting shaft and can be inserted into and rotationally connected with the lower port of the mounting hole, so that the upper side area of the flow control cavity is plugged; the shaft part sealing ring is used for sealing the movable joint of the connecting shaft, and the end cover sealing ring is used for sealing the press cap and the valve seat main body;
3. The utility model has a reliable opening and closing control unit, can conveniently and effectively realize the closing or opening of the direct current pipeline through the mutual matching of the spherical valve clack and the flow control cavity, has a reliable mounting and sealing unit, can be convenient for mounting the valve body part, can move the shaft body while mounting and fixing the cover body, and seals the junction.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a partial cross-sectional view of the present utility model;
FIG. 3 is a schematic view of a part of the present utility model;
FIG. 4 is a schematic view of a partial two-structure of the present utility model.
In the figure: the valve seat comprises a valve seat body 1, a through pipe 2, an opening and closing control unit 3, a mounting hole 31, a flow control cavity 32, a spherical valve clack 33, a connecting shaft 34, a 35 screwing block, a 36 connecting seat, a 37 plugging clamping groove, a 38 plugging clamping block, a 4 mounting sealing unit, a 41 screw short column, a 42 pressing cap, a 43 middle shaft clamping block, a 44 connecting short rod, a 45 shaft sealing ring, a 46 end cover sealing ring and a 5 connecting flange.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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.
Referring to fig. 1-4, the present embodiment provides a technical solution: a straight-through stop valve comprises a valve seat main body 1, an opening and closing control unit 3 and an installation sealing unit 4;
Valve seat body 1: is of a vertical cylindrical structure, and two sides of the lower end of the valve seat main body 1 are communicated with a transverse straight-through pipe 2;
An opening/closing control unit 3: the valve seat comprises a mounting hole 31, a flow control cavity 32, a spherical valve clack 33, a connecting shaft 34, a screwing block 35 and a connecting seat 36, wherein the mounting hole 31 is formed in the upper end of the valve seat body 1, threads are formed in the upper half section of the mounting hole 31, the flow control cavity 32 is a spherical cavity and is arranged at the vertical joint of the mounting hole 31 and the axis of a straight-through pipe 2, the spherical valve clack 33 is tightly connected in a rotating manner in the flow control cavity 32, a circular channel is horizontally formed in the middle of the spherical valve clack 33, the diameter and the height of the channel are consistent with those of the straight-through pipe 2, the upper end of the spherical valve clack 33 is fixedly connected with the connecting seat 36, the lower end of the connecting shaft 34 is clamped in the connecting seat 36, and the upper end of the connecting shaft 34 penetrates through the mounting hole 31 and is fixedly connected with the middle of the screwing block 35;
Mounting a sealing unit 4: mounted on the outside of the connecting shaft 34.
The valve seat main body 1 is used for setting up of mounting hole 31 and accuse flow chamber 32, the mounting hole 31 is used for the installation of valve body part, connecting axle 34 is used for the transmission connection between spherical valve clack 33 and the piece 35 of screwing, through screwing the piece 35, drive spherical valve clack 33 and rotate in accuse flow chamber 32 inside level, when screwing the piece 35 to the direction parallel with straight-through pipe 2, circular passageway and straight-through pipe 2 intercommunication that the middle part of spherical valve clack 33 was set up, the stop valve changes to open state, when screwing the piece 35 to the direction perpendicular with straight-through pipe 2, spherical valve clack 33 blocks up in straight-through pipe 2 and valve seat main body 1's connector department, the stop valve changes to closed state, connecting seat 36 is used for the cartridge of connecting axle 34, and connecting seat 36 can insert and rotate and connect in the lower port department of mounting hole 31, thereby realize the shutoff to accuse flow chamber 32 upside region, install sealing unit 4 is used for can install the valve body part, install fixedly and make the axle can move, and seal the junction.
The opening and closing control unit 3 further comprises a plugging clamping groove 37 and a plugging clamping block 38, a slotted hole which is equal to the end part of the connecting shaft 34 in size is formed in the connecting seat 36, two symmetrical plugging clamping blocks 38 are fixedly connected to the inner wall of the slotted hole, two plugging clamping grooves 37 are formed in the lower end of the connecting shaft 34, and the plugging clamping blocks 38 are clamped in the plugging clamping grooves 37. The connecting shaft 34 is vertically inserted into the connecting seat 36, and the inserting clamping grooves 37 on two sides are clamped with the inserting clamping blocks 38, so that the connecting shaft 34 is clamped and fixed, and the relative fixation between the spherical valve clack 33 and the connecting shaft 34 is maintained.
The mounting sealing unit 4 comprises a screw post 41 and a pressing cap 42, the screw post 41 and the pressing cap 42 are concentrically connected to the outside of the connecting shaft 34 in a rotating manner, the pressing cap 42 is positioned at the upper end of the screw post 41 and fixedly connected with the screw post 41, the screw post 41 is screwed and connected inside the mounting hole 31, and a section of the connecting shaft 34 positioned at the lower side of the screw post 41 is larger than the upper side in size. The threaded stub 41 is screwed with the mounting hole 31, so that the pressing cap 42 is pressed on the upper end of the valve seat main body 1, and a section of the connecting shaft 34, which is positioned on the lower side of the threaded stub 41, is larger than the upper side, so that the threaded stub 41 can also play a limiting role on the connecting shaft 34 in the vertical direction.
The installation sealing unit 4 further comprises a central shaft clamping block 43 and a connecting short rod 44, the lower half section of the installation hole 31 is fixedly connected with the central shaft clamping block 43 through three connecting short rods 44 in a circumferential array, the central shaft clamping block 43 is of an annular structure and internally provided with threads, one section of the connecting shaft 34, which is positioned on the threaded short column 41, is provided with shorter threads, and the connecting shaft 34 is in threaded connection with the central shaft clamping block 43 through the end threads. The connecting short rod 44 is used for connecting and fixing the middle shaft clamping block 43, the connecting shaft 34 is in threaded connection with the middle shaft clamping block 43 through a short one-end thread, and therefore a certain damping feedback can be provided when the screwing block 35 is screwed, and the screwing block 35 can be kept in a vertical state through screwing when the valve body is closed.
The mounting sealing unit 4 further comprises a shaft sealing ring 45 and an end cover sealing ring 46, the shaft sealing ring 45 is embedded and mounted at the lower end of the threaded short column 41 and close to the connecting shaft 34, and the end cover sealing ring 46 is mounted at the lower end of the press cap 42. The shaft seal ring 45 is used for sealing the movable joint of the connecting shaft 34, and the end cover seal ring 46 is used for sealing the press cap 42 and the valve seat main body 1.
The connecting flange 5 is fixedly connected to the port of the straight-through pipe 2, and bolt insertion holes are formed in the end face of the connecting flange 5 in a circumferential array. The connection flange 5 is used to connect the valve seat body 1 with an external pipe.
The working principle of the straight-through stop valve provided by the utility model is as follows: the valve body is a straight-through stop valve, and a straight-through pipe 2 is vertically communicated with the lower side of a valve seat main body 1. The straight-through stop valve is provided with the reliable opening and closing control unit 3, and the sealing or opening of the direct-current pipeline can be conveniently and effectively realized through the mutual matching of the spherical valve clack 33 and the flow control cavity 32: the connecting shaft 34 is used for driving connection between the spherical valve clack 33 and the screwing block 35, the screwing block 35 is screwed to drive the spherical valve clack 33 to horizontally rotate in the flow control cavity 32, when the screwing block 35 is screwed to the direction parallel to the straight-through pipe 2, the stop valve is converted into an open state when a circular channel formed in the middle of the spherical valve clack 33 is communicated with the straight-through pipe 2, and when the screwing block 35 is screwed to the direction perpendicular to the straight-through pipe 2, the spherical valve clack 33 is blocked at a connecting port of the straight-through pipe 2 and the valve seat main body 1, and the stop valve is converted into a closed state. The straight-through stop valve is also provided with a reliable installation sealing unit 4, can be convenient for installing the valve body part, can enable the shaft body to move when the cover body is installed and fixed, and seals the joint part: the threaded short column 41 is screwed with the mounting hole 31, so that the pressing cap 42 is pressed on the upper end of the valve seat main body 1, and the section of the connecting shaft 34 positioned on the lower side of the threaded short column 41 is larger than the upper side, so that the threaded short column 41 can also play a limiting role on the connecting shaft 34 in the vertical direction; the connecting seat 36 is used for inserting the connecting shaft 34, and the connecting seat 36 can be inserted into and rotationally connected to the lower port of the mounting hole 31, so that the upper side area of the flow control cavity 32 is plugged; the shaft seal ring 45 is used for sealing the movable joint of the connecting shaft 34, and the end cover seal ring 46 is used for sealing the press cap 42 and the valve seat main body 1. In addition, the connecting shaft 34 is vertically inserted into the connecting seat 36, and the inserting clamping grooves 37 at two sides are clamped with the inserting clamping blocks 38, so that the connecting shaft 34 is clamped and fixed, and the relative fixation between the spherical valve clack 33 and the connecting shaft 34 is maintained; the connecting short rod 44 is used for connecting and fixing the middle shaft clamping block 43, the connecting shaft 34 is in threaded connection with the middle shaft clamping block 43 through a short one-end thread, so that a certain damping feedback can be provided when the screwing block 35 is screwed, and the vertical state of the screwing block 35 can be kept through screwing when the valve body is closed; the connection flange 5 is used to connect the valve seat body 1 with an external pipe.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.
Claims (6)
1. A straight-through shut-off valve, characterized in that: comprises a valve seat main body (1), an opening and closing control unit (3) and an installation sealing unit (4);
Valve seat body (1): is of a vertical cylindrical structure, and two sides of the lower end of the valve seat main body (1) are communicated with a transverse straight-through pipe (2);
An opening/closing control unit (3): the valve seat comprises a mounting hole (31), a flow control cavity (32), a spherical valve clack (33), a connecting shaft (34), a screwing block (35) and a connecting seat (36), wherein the mounting hole (31) is formed in the upper end of the valve seat body (1), threads are formed in the upper half section of the mounting hole (31), the flow control cavity (32) is a spherical cavity and is arranged at the vertical joint of the mounting hole (31) and the axis of a straight-through pipe (2), the spherical valve clack (33) is tightly connected in a rotating mode, a circular channel is horizontally formed in the middle of the spherical valve clack (33), the diameter and the height of the channel are consistent with those of the straight-through pipe (2), the connecting seat (36) is fixedly connected to the upper end of the spherical valve clack (33), the lower end of the connecting shaft (34) is clamped in the connecting seat (36), and the upper end of the connecting shaft (34) penetrates through the mounting hole (31) and is fixedly connected with the middle of the screwing block (35);
Mounting a sealing unit (4): is mounted on the outside of the connecting shaft (34).
2. A straight-through shut-off valve according to claim 1, wherein: the opening and closing control unit (3) further comprises a plugging clamping groove (37) and a plugging clamping block (38), a slotted hole which is equal in size with the end part of the connecting shaft (34) is formed in the connecting seat (36), two symmetrical plugging clamping blocks (38) are fixedly connected to the inner wall of the slotted hole, the lower end of the connecting shaft (34) is provided with the left plugging clamping groove and the right plugging clamping groove (37), and the plugging clamping blocks (38) are clamped in the plugging clamping groove (37).
3. A straight-through shut-off valve according to claim 1, wherein: the installation sealing unit (4) comprises a threaded short column (41) and a pressing cap (42), the threaded short column (41) and the pressing cap (42) are concentrically connected in a rotating mode outside the connecting shaft (34), the pressing cap (42) is located at the upper end of the threaded short column (41) and fixedly connected with the threaded short column, the threaded short column (41) is screwed and connected inside the installation hole (31), and the section of the connecting shaft (34) located at the lower side of the threaded short column (41) is larger than the upper side in size.
4. A straight-through shut-off valve according to claim 3, wherein: the installation sealing unit (4) further comprises a middle shaft clamping block (43) and a connecting short rod (44), the lower half section of the installation hole (31) is fixedly connected with the middle shaft clamping block (43) through three connecting short rods (44) in a circumferential array, the middle shaft clamping block (43) is of an annular structure and is internally provided with threads, one section of the connecting shaft (34) located in the threaded short column (41) is provided with shorter threads, and the connecting shaft (34) is in threaded connection with the middle shaft clamping block (43) through the end threads.
5. A straight-through shut-off valve according to claim 3, wherein: the installation sealing unit (4) further comprises a shaft sealing ring (45) and an end cover sealing ring (46), the shaft sealing ring (45) is embedded and installed at the lower end of the threaded short column (41) close to the connecting shaft (34), and the end cover sealing ring (46) is installed at the lower end of the pressure cap (42).
6. A straight-through shut-off valve according to claim 1, wherein: the connecting device is characterized by further comprising a connecting flange (5), wherein the connecting flange (5) is fixedly connected to the port of the straight-through pipe (2), and bolt insertion holes are formed in the end face of the connecting flange (5) in a circumferential array.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322827370.XU CN220980376U (en) | 2023-10-21 | 2023-10-21 | Straight-through stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322827370.XU CN220980376U (en) | 2023-10-21 | 2023-10-21 | Straight-through stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220980376U true CN220980376U (en) | 2024-05-17 |
Family
ID=91066270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322827370.XU Active CN220980376U (en) | 2023-10-21 | 2023-10-21 | Straight-through stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220980376U (en) |
-
2023
- 2023-10-21 CN CN202322827370.XU patent/CN220980376U/en active Active
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