CN210265946U - Parallel double-gate valve with spring - Google Patents
Parallel double-gate valve with spring Download PDFInfo
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- CN210265946U CN210265946U CN201921045024.3U CN201921045024U CN210265946U CN 210265946 U CN210265946 U CN 210265946U CN 201921045024 U CN201921045024 U CN 201921045024U CN 210265946 U CN210265946 U CN 210265946U
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Abstract
The utility model discloses a take parallel double-disc gate valve of spring, concretely relates to valve technical field, which comprises a valve body, the inside two way seal disk seats that is provided with of valve body, be provided with the double-disc between two way seal disk seats, be provided with main wedge frame and vice wedge between two double-disc, main wedge frame top is provided with the valve rod, the valve body top is provided with the valve gap, the valve gap top is provided with filler assembly. The utility model discloses a be equipped with main wedge frame and vice wedge, interval between main wedge frame and the vice wedge can diminish gradually when the valve opening motion, two double-gate boards can inwards shrink this moment to separate mutually with the two-way seal valve seat, avoid the friction, under compression spring and extension spring mutually support, make the clearance can not increase between the double-gate board after opening, main wedge frame and the vice wedge, can hug closely each other between the part, make the double-gate board can keep the encapsulated situation of preferred for a long time.
Description
Technical Field
The utility model relates to the technical field of valves, more specifically say, the utility model relates to a take parallel double-disc gate valve of spring.
Background
The flat gate valve is a slide valve with a closing member being a parallel gate plate, i.e. the flat gate plate is driven by a valve rod to realize the opening and closing work, the closing member can be a single gate plate or a double gate plate with a spreading mechanism between the single gate plate and the double gate plate, the pressing force of the gate plate to the bidirectional sealing valve seat is controlled by the medium pressure acting on the floating gate plate or the floating bidirectional sealing valve seat, and if the flat gate valve is a double gate plate, the spreading mechanism between the two gate plates can supplement the pressing force.
However, when the gate plate is actually used, after the gate plate is opened, the gate plate, the wedge-shaped block and the expansion block tend to separate, gaps among parts are relatively increased after the gate plate is opened, vibration is easily generated, the gate plate, the wedge-shaped block and the expansion block are mutually matched under the action of the bidirectional sealing valve seat and the baffle plate in the valve body, and the gate plate and the bidirectional sealing valve seat have slight friction in the opening and closing process and have the hidden danger of damaging a sealing surface.
SUMMERY OF THE UTILITY MODEL
In order to overcome prior art's above-mentioned defect, the embodiment of the utility model provides a take parallel double-disc gate valve of spring, the utility model discloses a be equipped with main wedge frame and vice wedge, can promote the double-disc and carry out two way seal, opening torque is little, and sealed face makes longe-lived specially adapted heavy-calibre, high temperature medium, and fundamentally solves the dead phenomenon of flashboard card.
In order to achieve the above object, the utility model provides a following technical scheme: a parallel double-gate-plate gate valve with a spring comprises a valve body, wherein a bidirectional sealing valve seat is arranged inside the valve body, double gates are arranged between the bidirectional sealing valve seats, a main wedge-shaped frame is arranged between the double gates and is matched with the main wedge-shaped frame to form an auxiliary wedge-shaped block, a valve rod is arranged at the top of the main wedge-shaped frame, a valve cover is arranged at the top of the valve body, and a packing assembly is arranged at the top of the valve cover;
an extension spring is arranged between the double gate plates, and the double gate plates are fixed in the mounting holes of the main wedge-shaped frame;
the main wedge-shaped frame is connected with the valve rod, the main wedge-shaped frame is connected with the auxiliary wedge-shaped block in a sliding mode, a compression spring is arranged between the main wedge-shaped frame and the auxiliary wedge-shaped block, and the top of the compression spring is fixedly connected with the main wedge-shaped frame.
In a preferred embodiment, a disc spring is arranged on the top of the valve cover and fixed on the valve cover through bolts, a packing pressure plate is arranged at the bottom of the disc spring, and a packing gland is arranged at the bottom of the packing pressure plate.
In a preferred embodiment, the two-way sealing valve seat is welded to the valve body, and the sealing surface of the two-way sealing valve seat is made of a cobalt-based alloy material.
In a preferred embodiment, a sealing gasket is arranged between the valve body and the valve cover.
In a preferred embodiment, the bottom of the packing assembly is provided with an upper sealing seat, the upper part of the upper sealing seat is provided with a positioning step, and the valve rod penetrates through the upper sealing seat.
In a preferred embodiment, the packing assembly is provided as a V-form type composite packing.
In a preferred embodiment, the valve body and the valve cover are fixed through bolting through bolts.
The utility model discloses a technological effect and advantage:
1. the utility model is provided with the main wedge-shaped frame and the auxiliary wedge-shaped block, the horizontal distance between the main wedge-shaped frame and the auxiliary wedge-shaped block can be gradually reduced during the movement, at the moment, two double flashboards can be inwards contracted so as to be separated from the two-way sealing valve seat, so that the flashboards can not contact with the sealing surface of the valve seat during the opening movement, the friction between the flashboards and the sealing surface of the valve seat is avoided, the extension spring enables the flashboards to move more stably, the compression spring has the limiting function on the main wedge-shaped frame and the auxiliary wedge-shaped block, the overlarge gap between the main wedge-shaped frame and the auxiliary wedge-shaped block is avoided, the gap between the opened double flashboards, the main wedge-shaped frame and the auxiliary wedge-shaped block can not be increased under the mutual cooperation of the compression spring and the extension spring, the parts can be mutually clung, the friction between the flashboards and the sealing surface of the valve seat can be avoided, the double flashboards, horizontal interval between main wedge frame and the vice wedge can crescent, and main wedge frame and vice wedge can promote double-gate board and two way seal disk seat respectively and offset to guarantee its sealing performance, the utility model discloses, can promote double-gate board and carry out two way seal, opening torque is little, and sealed face makes longe-lived, specially adapted heavy-calibre, high temperature medium, fundamentally solves the flashboard card phenomenon of dying.
2. The utility model discloses a be equipped with the seal receptacle, go up seal receptacle upper portion and increase and have the location step, the location step can improve the seal receptacle and assemble the axiality with the valve gap, improves the installation precision, and the dish spring can extrude gland downwards under self spring action, and gland can extrude gland downwards, and gland can extrude the packing subassembly downwards, avoids the packing subassembly not hard up for the packing subassembly has the automatic compensation function, realizes non-maintaining basically.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is an enlarged schematic view of a portion a of fig. 1 according to the present invention.
Fig. 3 is a front view of the main wedge frame of the present invention.
Fig. 4 is a right side view of the main wedge frame of the present invention.
Fig. 5 is an enlarged schematic view of a portion B in fig. 1 according to the present invention.
Fig. 6 is an enlarged schematic view of the part C in fig. 1 according to the present invention.
The reference signs are: the valve comprises a valve body 1, a bidirectional sealing valve seat 2, a double gate plate 3, a main wedge frame 4, an auxiliary wedge block 5, a valve rod 6, a valve cover 7, a packing component 8, an extension spring 9, a compression spring 10, a disc spring 11, a packing pressing plate 12, a packing pressing cover 13, a sealing gasket 14, an upper sealing seat 15 and a positioning step 151.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a parallel double-gate board gate valve of band spring formula, including valve body 1, two-way seal valve seat 2 is provided with in the valve body 1, be provided with two flashboards 3 between two-way seal valve seat 2, be provided with main wedge frame 4 between two flashboards 3, the main wedge frame 4 bottom is provided with vice wedge 5, the main wedge frame 4 top is provided with valve rod 6, the valve body 1 top is provided with valve gap 7, the valve gap 7 top is provided with filler subassembly 8;
an extension spring 9 is arranged between the double gate plates 3, and the double gate plates 3 are fixed in the mounting holes of the main wedge-shaped frame 4;
the main wedge-shaped frame 4 is connected with the valve rod 6, the main wedge-shaped frame 4 is in sliding connection with the auxiliary wedge-shaped block 5, a compression spring 10 is arranged between the main wedge-shaped frame 4 and the auxiliary wedge-shaped block 5, and the top of the compression spring 10 is fixedly connected with the main wedge-shaped frame 4.
As shown in fig. 1 to 4, the embodiment specifically is: when the double gate plates 3 are to be opened, the valve rod 6 can drive the main wedge-shaped frame 4 fixed at the bottom to move upwards, the main wedge-shaped frame 4 can slide on the auxiliary wedge-shaped block 5 due to the sliding connection of the main wedge-shaped frame 4 and the auxiliary wedge-shaped block 5 arranged at one side, and the horizontal distance between the main wedge-shaped frame 4 and the auxiliary wedge-shaped block 5 can be gradually reduced during movement, at the moment, the two double gate plates can contract inwards to be separated from the two-way sealing valve seat 2, so that the double gate plates 3 can not be contacted with the two-way sealing valve seat 2 during opening movement, the friction between the double gate plates 3 and the two-way sealing valve seat 2 is avoided, the extension spring 9 is connected and fixed between the double gate plates 3, the extension spring 9 enables the double gate plates 3 to move more stably, and the compression spring 10 is connected and fixed between the main wedge-shaped frame 4 and the auxiliary wedge-shaped block 5, and the compression spring 10 has a limiting effect on the, the gap between the main wedge-shaped frame 4 and the auxiliary wedge-shaped block 5 is prevented from being too large, the gap between the opened double gate plate 3, the main wedge-shaped frame 4 and the auxiliary wedge-shaped block 5 cannot be increased under the mutual cooperation of the compression spring 10 and the extension spring 9, parts can be tightly attached to each other, the friction between the double gate plate 3 and the two-way sealing valve seat 2 can be avoided, the double gate plate 3 can keep a better sealing state for a long time, when the double gate plate 3 is closed, the valve rod 6 can drive the main wedge-shaped frame 4 to move downwards, the main wedge-shaped frame 4 can drive the auxiliary wedge-shaped block 5 in sliding connection to move downwards at the same time, the auxiliary wedge-shaped block 5 can abut against the valve body 1 at the bottom so as to be fixed, at the moment, the main wedge-shaped frame 4 can move downwards along the auxiliary wedge-shaped block 5, the distance between the main wedge-shaped frame 4 and the auxiliary wedge-shaped block 5 can be gradually increased, the main wedge-shaped frame 4 and the auxiliary wedge-shaped, thereby ensuring its sealing performance.
The valve gap 7 top is provided with dish spring 11, dish spring 11 passes through the bolt fastening on valve gap 7, dish spring 11 bottom is provided with packing plate 12, packing plate 12 bottom is provided with gland 13, two-way seal disk seat 2 welds on valve body 1, two-way seal disk seat sealing face 2 is made by cobalt base alloy material, be provided with seal gasket 14 between valve body 1 and the valve gap 7, 8 bottoms of packing component are provided with upper seal seat 15, 15 upper portions of upper seal seat are provided with location step 151, valve rod 6 runs through upper seal seat 15, packing component 8 sets up to V formation type composite packing, it is fixed through the bolt fastening between valve body 1 and the valve gap 7.
As shown in fig. 5 to 6, the embodiment is specifically as follows: go up 15 upper portions of seal receptacle and increase there is location step 151, location step 151 can improve the coaxiality of seal receptacle 15 when assembling with valve gap 7, improve the installation precision, dish spring 11 can push packing plate 12 downwards under self elastic action, packing plate 12 can push packing gland 13 downwards, packing gland 13 can push packing assembly 8 downwards, avoid packing assembly 8 not hard up, make packing assembly 8 have the automatic compensation function, realize non-maintaining basically.
The utility model discloses the theory of operation:
referring to the attached drawings 1-4 of the specification, when the double-gate plate 3 is to be opened, the valve rod 6 can drive the main wedge-shaped frame 4 with the fixed bottom to move upwards, the main wedge-shaped frame 4 can slide on the auxiliary wedge-shaped block 5, the horizontal distance between the main wedge-shaped frame 4 and the auxiliary wedge-shaped block 5 can be gradually reduced during movement, the two double-gate plates can contract inwards at the moment so as to be separated from the bidirectional sealing valve seat 2, the double-gate plate 3 can not be contacted with the bidirectional sealing valve seat 2 during opening movement, the tension spring 9 is connected and fixed between the double-gate plates 3, the tension spring 9 enables the double-gate plate 3 to move more stably, the compression spring 10 has a limiting effect on the main wedge-shaped frame 4 and the auxiliary wedge-shaped block 5, the phenomenon that the gap between the main wedge-shaped frame 4 and the auxiliary wedge-shaped block 5 is too large, the valve rod 6 can drive the main wedge-shaped frame 4 to move downwards during closing, and the main wedge-shaped frame 4 can drive the, the auxiliary wedge-shaped block 5 is abutted against the valve body 1 at the bottom, so that the auxiliary wedge-shaped block is fixed, the main wedge-shaped frame 4 moves downwards along the auxiliary wedge-shaped block 5 at the moment, the horizontal distance between the main wedge-shaped frame 4 and the auxiliary wedge-shaped block 5 is gradually increased, and the main wedge-shaped frame 4 and the auxiliary wedge-shaped block 5 respectively push the double gate plate 3 to abut against the two-way sealing valve seat 2;
referring to the attached drawings of the specification 5-6, the upper portion of the upper sealing seat 15 is additionally provided with the positioning step 151, the positioning step 151 can improve the assembly coaxiality of the upper sealing seat 15 and the valve cover 7, the installation accuracy is improved, the disc spring 11 can downwards extrude the packing pressing plate 12 under the action of the elastic force of the disc spring, the packing pressing plate 12 can downwards extrude the packing gland 13, the packing gland 13 can downwards extrude the packing assembly 8, and the looseness of the packing assembly 8 is avoided.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;
and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a take parallel double-gate board gate valve of spring, includes valve body (1), its characterized in that: a bidirectional sealing valve seat (2) is arranged in the valve body (1), a double gate plate (3) is arranged between the bidirectional sealing valve seats (2), a main wedge-shaped frame (4) and an auxiliary wedge-shaped block (5) are arranged between the double gate plates (3), a valve rod (6) is arranged at the top of the main wedge-shaped frame (4), a valve cover (7) is arranged at the top of the valve body (1), and a packing assembly (8) is arranged at the top of the valve cover (7);
an extension spring (9) is arranged between the double gate plates (3), and the double gate plates (3) are fixed in mounting holes of the main wedge-shaped frame (4);
the main wedge-shaped frame (4) is connected with the valve rod (6), the main wedge-shaped frame (4) is connected with the auxiliary wedge-shaped block (5) in a sliding mode, a compression spring (10) is arranged between the main wedge-shaped frame (4) and the auxiliary wedge-shaped block (5), and the top of the compression spring (10) is fixedly connected with the main wedge-shaped frame (4).
2. The spring-loaded parallel double-gate valve according to claim 1, characterized in that: the valve cap is characterized in that a disc spring (11) is arranged at the top of the valve cap (7), the disc spring (11) is fixed on the valve cap (7) through a bolt, a packing pressing plate (12) is arranged at the bottom of the disc spring (11), and a packing pressing cover (13) is arranged at the bottom of the packing pressing plate (12).
3. The spring-loaded parallel double-gate valve according to claim 1, characterized in that: the bidirectional sealing valve seat (2) is welded on the valve body (1), and a sealing surface of the bidirectional sealing valve seat (2) is made of a cobalt-based alloy material.
4. The spring-loaded parallel double-gate valve according to claim 1, characterized in that: a sealing gasket (14) is arranged between the valve body (1) and the valve cover (7).
5. The spring-loaded parallel double-gate valve according to claim 1, characterized in that: the packing assembly is characterized in that an upper sealing seat (15) is arranged at the bottom of the packing assembly (8), a positioning step (151) is arranged on the upper portion of the upper sealing seat (15), and the valve rod (6) penetrates through the upper sealing seat (15).
6. The spring-loaded parallel double-gate valve according to claim 1, characterized in that: the packing component (8) is arranged into a V-shaped composite packing.
7. The spring-loaded parallel double-gate valve according to claim 1, characterized in that: the valve body (1) and the valve cover (7) are bolted and fixed through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921045024.3U CN210265946U (en) | 2019-07-05 | 2019-07-05 | Parallel double-gate valve with spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921045024.3U CN210265946U (en) | 2019-07-05 | 2019-07-05 | Parallel double-gate valve with spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210265946U true CN210265946U (en) | 2020-04-07 |
Family
ID=70047398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921045024.3U Active CN210265946U (en) | 2019-07-05 | 2019-07-05 | Parallel double-gate valve with spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210265946U (en) |
-
2019
- 2019-07-05 CN CN201921045024.3U patent/CN210265946U/en active Active
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