CN223375137U - A combined claw type double-disc gate valve - Google Patents
A combined claw type double-disc gate valveInfo
- Publication number
- CN223375137U CN223375137U CN202422888537.8U CN202422888537U CN223375137U CN 223375137 U CN223375137 U CN 223375137U CN 202422888537 U CN202422888537 U CN 202422888537U CN 223375137 U CN223375137 U CN 223375137U
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- valve
- valve rod
- sealing
- self
- ring
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- Lift Valve (AREA)
Abstract
The utility model relates to the technical field of gate valves, in particular to a combined claw type double-gate valve, wherein a valve seat is arranged in an inlet and outlet channel of a valve body, a double-gate assembly is arranged in the valve seat, the lower end of a valve rod is connected with the double-gate assembly, the valve rod penetrates through the valve body and a bracket arranged on the valve body and then is connected with a driving device through a lifting mechanism, the driving device is arranged at the top end of the bracket, a sealing mechanism is arranged between the valve rod and a middle mounting port of the valve body and is used for sealing the valve rod and the upper end part of a self-sealing body, and a packing sealing mechanism is arranged between the valve rod and the upper end part of the self-sealing body. The device is mainly applied to a high-temperature high-pressure steam pipeline and used for closing or opening pipeline media to keep the system in normal operation, and has the advantages of compact structure, reliable performance, tight sealing, convenient disassembly and the like.
Description
Technical Field
The utility model relates to the technical field of gate valves, in particular to a combined claw type double-gate-plate gate valve.
Background
The existing high-temperature high-pressure gate valve has the defects of heavy structure, high manufacturing cost, unstable performance, easy leakage, inconvenient maintenance and the like.
Disclosure of utility model
The utility model aims to overcome the defects and shortcomings of the prior art, provides a combined claw type double-gate valve which is mainly applied to a high-temperature high-pressure steam pipeline and used for closing or opening a pipeline medium and keeping a system to normally operate, and has the advantages of compact structure, reliable performance, tight sealing, convenience in disassembly and the like.
The valve seat is arranged in an inlet and outlet channel of the valve body, the double-flashboard assembly is arranged in the valve seat, the lower end of the valve rod is connected with the double-flashboard assembly, the valve rod penetrates through the valve body and a bracket arranged on the valve body and then is connected with a driving device through a lifting mechanism, the driving device is arranged at the top end of the bracket, the valve rod is sealed with a middle mounting port of the valve body through a self-sealing mechanism, and a packing sealing mechanism is arranged between the valve rod and the upper end part of the self-sealing body.
Further, the double-gate plate assembly comprises a right gate plate and a left gate plate, wherein the right gate plate and the left gate plate are symmetrically arranged, a left inclined surface of the left gate plate is a sealing surface, two combining claws are symmetrically arranged on the right side surface in the horizontal direction, the right inclined surface of the right gate plate is a sealing surface, two combining claws are symmetrically arranged on the left side surface in the vertical direction, the left gate plate and the right gate plate are mutually meshed by utilizing the respective combining claws, the four combining claws form a complete circular ring structure, the periphery of the circular ring structure is sleeved with an adjusting ring, T-shaped groove structures are respectively formed at the top ends of the left gate plate and the right gate plate, a T-shaped groove is formed by the two T-shaped groove structures, a cushion block is arranged in the T-shaped groove, and the lower end of the valve rod is arranged in the T-shaped groove.
Further, the self-sealing mechanism includes:
The self-sealing body is movably arranged in the middle mounting port of the valve body and sleeved on the valve rod, the outer ring of the self-sealing body is provided with a 45-degree inclined plane, the contact position of the lower end of the self-sealing body and the valve rod is provided with a port conical surface, the port conical surface is in matched and abutting arrangement with the valve rod inclined plane integrally formed at the lower end of the valve rod, and the port conical surface and the valve rod inclined plane form an inverted sealing mechanism;
the self-sealing ring is also provided with a 45-degree inclined plane structure matched with the 45-degree inclined plane, and the self-sealing ring is embedded between the 45-degree inclined plane and the inner wall of the valve body;
The compression ring is arranged on the self-sealing ring;
the outer ring of the four-closed ring is clamped in an annular groove provided with an upper port of a middle mounting port of the valve body; the inner ring of the four-closed ring is pressed on the pressing ring;
The backing plate is sleeved outside the self-sealing body, the outer ring of the backing plate is arranged in the top port of the middle mounting opening of the valve body, and the inner ring of the backing plate is clamped in the inner ring of the four-way ring.
Further, the packing seal mechanism includes:
The packing cushion is sleeved on the valve rod and is arranged at the bottom of the packing box at the upper end of the self-sealing body;
The packing pressing sleeve is sleeved on the valve rod and is arranged at the top of the packing;
The packing pressing sleeve is connected with a loose joint bolt by a screwing nut, the lower end of the loose joint bolt is connected with a holding-down plate by a pin shaft, the holding-down plate is sleeved on the upper part of the self-sealing body, and the holding-down plate is fixed with the backing plate by a screw;
The split ring is clamped in the grooves of the upper end of the self-sealing body and the upper port of the holding-down plate.
The lifting mechanism further comprises a valve rod nut, wherein the valve rod nut is connected with the upper end of the valve rod through threads, a sealing ring is arranged between the lower end of the valve rod nut and the inner wall of the support, the valve rod nut is rotatably arranged in the top end of the support through a plurality of bearings, a bearing end cover is arranged on the bearing above the valve rod nut, the bearing end cover is connected with the top end of the support through countersunk screws, and the top end of the valve rod is connected with the driving device through a connecting claw.
Further, a third bolt assembly is installed in the bottom opening of the valve body.
Further, an oil filling hole is formed in the position, located at the outer side of the valve rod nut, of the upper end of the support, and an oil filling hole plug is arranged in the oil filling hole.
Compared with the prior art, the combined claw type double-gate valve has the advantages of compact structure, reliable performance, tight sealing, convenience in disassembly and the like, and is mainly applied to a high-temperature high-pressure steam pipeline for closing or opening pipeline media and keeping the system in normal operation.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is an enlarged view of a portion B in fig. 1.
Fig. 3 is a schematic view of the left flashboard structure in the present utility model.
Fig. 4 is a right side view of fig. 3.
Fig. 5 is a schematic view of the structure of the right shutter in the present utility model.
Fig. 6 is an enlarged view of a portion a in fig. 1.
Fig. 7 is a schematic view of the structure of the packing mechanism of the present utility model.
Fig. 8 is an enlarged view of a portion C in fig. 1.
Reference numerals illustrate:
The valve comprises a valve body 1, an annular groove 1-1, a valve seat 2, a right flashboard 3, a valve rod 4, a valve rod inclined surface 4-1, a self-sealing body 5, a 45-degree inclined surface 5-1, a port conical surface 5-2, a self-sealing ring 6, a 45-degree inclined surface 6-1, a compression ring 7, a four-way ring 8, a flange 9, a first bolt component 10, a screw rod 11, a bracket 12, a sealing ring 13, a bearing 14, a valve rod nut 15, a countersunk screw 16, a second bolt component 17, a driving device 18, a bearing end cover 19, an oil filling hole plugging 20, a loose joint bolt 21, a screwing nut 22, a packing pressing plate 23, a packing pressing sleeve 24, a split ring 25, a pin shaft 26, a retainer 27, a backing plate 28, packing 29, a packing pad 30, a left flashboard 31, a cushion 32, a third bolt component 33, a T-shaped groove structure 34, a combining claw 35 and an adjusting ring 36.
Detailed Description
The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings, in which preferred embodiments in the description are given by way of example only, and all other embodiments obtained by those skilled in the art without making any inventive effort are within the scope of protection of the present utility model.
As shown in figures 1-8, the concrete implementation mode adopts the following technical scheme that the valve comprises a valve body 1, a valve seat 2, a double-flashboard component and a valve rod 4, wherein a bolt component III 33 is arranged in an opening at the bottom of the valve body 1, the valve seat 2 is arranged in an inlet and outlet channel of the valve body 1, the double-flashboard component is arranged in the valve seat 2, the lower end of the valve rod 4 is connected with the double-flashboard component, the valve rod 4 passes through the valve body 1 and a bracket 12 arranged on the valve body 1 and then is connected with a driving device 18 through a lifting mechanism, a flange surface 9 is integrally formed on the lower end surface of the bracket 12, the flange surface 9 is fixedly connected with the valve body 1 through a bolt component I10, the driving device 18 is arranged at the top end of the bracket 12, the valve rod 4 is sealed with a middle mounting port of the valve body 1 through a self-sealing mechanism, and a filler sealing mechanism is arranged between the valve rod 4 and the upper end of the self-sealing body;
The double-gate plate assembly comprises a right gate plate 3 and a left gate plate 31, wherein the right gate plate 3 and the left gate plate 31 are symmetrically arranged, the left inclined surface of the left gate plate 31 is a sealing surface, the right side surface is symmetrically provided with two combining claws 35 in the horizontal direction, the right inclined surface of the right gate plate 3 is a sealing surface, the left side surface is symmetrically provided with two combining claws 35 in the vertical direction, the left gate plate 31 and the right gate plate 3 are mutually meshed by utilizing the respective combining claws 35, four combining claws 35 form a complete circular ring structure, the periphery of the circular ring structure is sleeved with an adjusting ring 36, the adjusting ring 36 is used for adjusting the combined thickness of the left gate plate 31 and the right gate plate 3, the sealing surface is welded with abrasion-resistant hard alloy, the sealing surface is tightly matched with the sealing surface of the valve seat 2, the top ends of the left gate plate 31 and the right gate plate 3 are respectively provided with a T-shaped groove structure 34, a cushion block 32 is formed in the T-shaped groove, and the lower end of the valve rod 4 is arranged in the T-shaped groove;
the self-sealing mechanism includes:
The self-sealing body 5 is movably arranged in the middle mounting port of the valve body 1 and sleeved on the valve rod 4, the outer ring of the self-sealing body 5 is provided with a 45-degree inclined surface 5-1, the contact position of the lower end of the self-sealing body 5 and the valve rod 4 is provided with a port conical surface 5-2, and the port conical surface 5-2 is in matched and abutting arrangement with the valve rod inclined surface 4-1 integrally formed at the lower end of the valve rod 4 to form a reverse sealing mechanism;
the self-sealing ring 6 is also provided with a 45-degree inclined plane structure matched with the 45-degree inclined plane 5-1, and the self-sealing ring 6 is embedded between the 45-degree inclined plane 5-1 and the inner wall of the valve body 1;
A pressure ring 7, wherein the pressure ring 7 is arranged on the self-sealing ring 6;
The four-way ring 8 is arranged in the annular groove 1-1 provided with the upper port of the middle mounting port of the valve body 1 in a clamping way on the outer ring of the four-way ring 8; the inner ring of the four-way ring 8 is pressed on the pressing ring 7;
The base plate 28 is sleeved outside the self-sealing body 5, the outer ring of the base plate 28 is arranged in the top port of the middle mounting port of the valve body 1, and the inner ring of the base plate 28 is clamped in the inner ring of the four-way ring 8;
the packing seal mechanism comprises:
The packing pad 30 is sleeved on the valve rod 4 and is arranged at the bottom of the packing box at the upper end of the self-sealing body 5, and the packing 29 is arranged in the packing box of the self-sealing body 5;
The packing pressing sleeve 24 is sleeved on the valve rod 4, and is arranged at the top of the packing 29;
The packing pressing plate 23 is sleeved on the valve rod 4 and is arranged at the top of the packing pressing sleeve 24, the packing pressing sleeve 24 is connected with a loose joint bolt 21 by a screwing nut 22, the lower end of the loose joint bolt 21 is connected with a holding-down plate 27 by a pin shaft 26, the holding-down plate 27 is sleeved on the upper part of the self-sealing body 5, and the holding-down plate 27 is fixed with a backing plate 28 by a screw 11;
the split ring 25 is clamped in the grooves of the upper end of the self-sealing body 5 and the upper port of the holding-down disk 27;
The lifting mechanism comprises a valve rod nut 15, wherein the valve rod nut 15 is connected with the upper end of a valve rod 4 through threads, a sealing ring 13 is arranged between the lower end of the valve rod nut 15 and the inner wall of a support 12, an oil hole is formed in the position, located outside the valve rod nut 15, of the upper end of the support 12, an oil hole blocking 20 is arranged in the oil hole, the valve rod nut 15 is rotatably arranged in the top end of the support 12 through a plurality of bearings 14, a bearing end cover 19 is arranged on the bearing 14 above, the bearing end cover 19 is connected with the top end of the support 12 through a countersunk screw 16, the top end of the valve rod 4 is connected with a driving device 18 through a connecting claw, and the driving device 18 is connected and fixed with the top end of the support 12 through a bolt assembly II 17.
When the self-sealing valve is used, when a medium flows from an inlet to an outlet of the valve body 1, the self-sealing body 5 is pressed by the medium upwards, the self-sealing ring 6 is pressed by the 45-degree inclined surface 47 of the self-sealing body, the self-sealing ring 6 is pressed by the pressing ring 7 and the four-way ring 8, the higher the medium pressure is, the larger the pressing force on the self-sealing ring 6 is, the better the sealing performance is, the connecting claw of the driving device 18 rotates to drive the valve rod nut 15 to rotate, and the valve rod 4 is driven to lift through screw transmission, so that the valve is opened and closed, and after the valve is completely opened, the valve rod inclined surface 4-1 is completely matched with the port conical surface 5-2 at the lower end of the self-sealing body 5 to form a reverse seal, so that the sealing performance is effectively improved.
Compared with the prior art, the combined claw type double-gate valve has the advantages of compact structure, reliable performance, tight sealing, convenience in disassembly and the like, and is mainly applied to a high-temperature high-pressure steam pipeline for closing or opening pipeline media and keeping the system in normal operation.
It should be understood that those skilled in the art can make modifications to the technical solutions described in the foregoing embodiments and equivalent substitutions of some technical features, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (6)
1. A combined claw type double-gate valve is characterized by comprising a valve body (1), a valve seat (2), a double-gate assembly and a valve rod (4), wherein the valve seat (2) is arranged in an inlet and outlet channel of the valve body (1), the double-gate assembly is arranged in the valve seat (2), the lower end of the valve rod (4) is connected with the double-gate assembly, the valve rod (4) passes through the valve body (1) and a support (12) arranged on the valve body (1) and then is connected with a driving device (18) through a lifting mechanism, the driving device (18) is arranged at the top end of the support (12), a middle mounting port between the valve rod (4) and the valve body (1) is sealed through a self-sealing mechanism, a packing sealing mechanism is arranged between the valve rod (4) and the upper end of the self-sealing body, and the self-sealing mechanism comprises:
The self-sealing body (5) is movably arranged in a middle mounting port of the valve body (1) and is sleeved on the valve rod (4), a 45-degree inclined surface (5-1) is arranged on the outer ring of the self-sealing body (5), a port conical surface (5-2) is arranged at the contact position of the lower end of the self-sealing body (5) and the valve rod (4), the port conical surface (5-2) is in matched and abutting arrangement with the valve rod inclined surface (4-1) integrally formed at the lower end of the valve rod (4), and the port conical surface (5-2) and the valve rod inclined surface (4-1) form an inverted sealing mechanism;
The self-sealing ring (6), the inner ring of the self-sealing ring (6) is also provided with a 45-degree inclined plane structure matched with the 45-degree inclined plane (5-1), and the self-sealing ring (6) is embedded between the 45-degree inclined plane (5-1) and the inner wall of the valve body (1);
The compression ring (7), the said compression ring (7) is set up in the self-sealing ring (6);
The four-way valve comprises a four-way ring (8), wherein the outer ring of the four-way ring (8) is clamped in an annular groove (1-1) provided with an upper port of a middle mounting port of a valve body (1), and the inner ring of the four-way ring (8) is pressed on a pressing ring (7);
the base plate (28), base plate (28) cover is established in self sealss body (5) outside, and the outer lane of base plate (28) sets up in the mid-mounting mouth top port of valve body (1), and the inner circle card of base plate (28) is established in the inner circle of four closes ring (8).
2. The combined claw type double-gate valve according to claim 1, wherein the double-gate valve assembly comprises a right gate plate (3) and a left gate plate (31), the right gate plate (3) and the left gate plate (31) are symmetrically arranged, a left inclined surface of the left gate plate (31) is a sealing surface, two combining claws (35) are symmetrically arranged on the right side surface in the horizontal direction, the right inclined surface of the right gate plate (3) is a sealing surface, two combining claws (35) are symmetrically arranged on the left side surface in the vertical direction, the left gate plate (31) and the right gate plate (3) are mutually meshed by utilizing the respective combining claws (35), four combining claws (35) form a complete circular ring structure, an adjusting ring (36) is sleeved on the periphery of the circular ring structure, T-shaped groove structures (34) are respectively arranged at the top ends of the left gate plate (31) and the right gate plate (3), a cushion block (32) is arranged in the T-shaped groove, and the lower end of the valve rod (4) is arranged in the T-shaped groove.
3. The combination gate valve of claim 1, wherein the packing seal comprises:
The packing cushion (30) is sleeved on the valve rod (4) and is arranged at the bottom of the packing box at the upper end of the self-sealing body (5), and the packing (29) is arranged in the packing box of the self-sealing body (5);
The packing pressing sleeve (24) is sleeved on the valve rod (4) and is arranged at the top of the packing (29);
The packing pressing plate (23) is sleeved on the valve rod (4) and is arranged at the top of the packing pressing sleeve (24), the packing pressing sleeve (24) is connected with a loose joint bolt (21) by a screwing nut (22), the lower end of the loose joint bolt (21) is connected with a holding-down plate (27) by a pin shaft (26), the holding-down plate (27) is sleeved on the upper part of the self-sealing body (5), and the holding-down plate (27) is fixed with a backing plate (28) by a screw (11);
The split ring (25) is clamped in grooves at the upper end of the self-sealing body (5) and the upper port of the holding-down plate (27).
4. The combined claw type double-gate valve according to claim 3, wherein the lifting mechanism comprises a valve rod nut (15), wherein the valve rod nut (15) is connected with the upper end of a valve rod (4) through threads, a sealing ring (13) is arranged between the lower end of the valve rod nut (15) and the inner wall of a support (12), the valve rod nut (15) is rotatably arranged in the top end of the support (12) through a plurality of bearings (14), a bearing end cover (19) is arranged on the upper bearing (14), the bearing end cover (19) is connected with the top end of the support (12) through a countersunk screw (16), and the top end of the valve rod (4) is connected with a driving device (18) through a connecting claw.
5. A combined claw-type double gate valve according to claim 4, wherein a third bolt assembly (33) is installed in the bottom opening of the valve body (1).
6. The combined claw-type double-gate valve of claim 5, wherein the upper end of the bracket (12) is provided with an oil filling hole at the outer side of the valve rod nut (15), and an oil filling hole blocking (20) is arranged in the oil filling hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422888537.8U CN223375137U (en) | 2024-11-26 | 2024-11-26 | A combined claw type double-disc gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422888537.8U CN223375137U (en) | 2024-11-26 | 2024-11-26 | A combined claw type double-disc gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223375137U true CN223375137U (en) | 2025-09-23 |
Family
ID=97087661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422888537.8U Active CN223375137U (en) | 2024-11-26 | 2024-11-26 | A combined claw type double-disc gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223375137U (en) |
-
2024
- 2024-11-26 CN CN202422888537.8U patent/CN223375137U/en active Active
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