Stop valve with high sealing performance

Abstract

The utility model relates to the technical field of fluid control equipment, and discloses a high-sealing-performance stop valve which comprises a valve body, the upper end of the valve body is in threaded connection with a plurality of first bolts, a valve cover is arranged on the outer sides of the first bolts, a sealing ring is arranged at the bottom of the valve cover, the upper ends of the first bolts are in threaded connection with compression nuts, and the upper ends of the first bolts are in threaded connection with the compression nuts. A valve rod is rotationally connected to the middle of the valve deck, a rotating handle is fixedly connected to the upper end of the valve rod, a valve element is arranged at the bottom end of the valve rod, and a plurality of supporting springs are fixedly connected to the bottom of the valve body. The sealing ring is subjected to axial pressure by screwing the compression nut, so that a better sealing effect is achieved, the supporting spring is installed at the bottom of the valve element, close contact between the valve element and the sealing ring is kept, a multiple sealing mechanism is adopted, reliability is improved, and the problem that when high-pressure and high-temperature media are processed, the sealing ring cannot be tightly sealed is solved. And the problem of poor sealing performance still exists.

Description

TECHNICAL FIELD

[0001] The utility model relates to fluid control equipment technical field especially relates to a high sealing property stop valve. BACKGROUND

[0002] The high sealing property stop valve is a valve device for cutting off or connecting the medium flow in the pipeline, and its most remarkable feature is that it has excellent sealing performance, which can effectively prevent the medium from flowing from the inlet end to the outlet end of the valve in the closed state, or minimize the leakage to ensure the safety and normal operation of the pipeline equipment.

[0003] Through the retrieval, the patent of China announcement number for: CN221922408U, disclosed a kind of high sealing property stop valve, including valve body, the left and right sides of the valve body are all fixedly connected with fixed flange plate, the side of the fixed flange plate away from valve body is equipped with pipeline flange plate, the side of the pipeline flange plate away from valve body is fixedly connected with feed pipe, four flange holes are all set up in the fixed flange plate and pipeline flange plate, sealing ring is equipped between the fixed flange plate and pipeline flange plate, the outside of the sealing ring is fixedly connected with four rubber cylinders, the rubber cylinder is movably penetrated through adjacent flange hole, the utility model discloses a kind of high sealing property stop valve, sealing ring is installed to specified position after the setting of rubber cylinder, sealing ring does not deviate due to gravity, to ensure the sealing property between pipeline flange plate and fixed flange plate, guarantee the normal work of stop valve, but in some specific application environment, especially when handling high pressure, high temperature medium, there is still the problem of poor sealing performance. SUMMARY

[0004] In order to make up for the above shortcomings, the utility model provides a kind of high sealing property stop valve, to improve the existing technology in handling high pressure, high temperature medium, still there is the problem of poor sealing performance.

[0005] In order to achieve the above object, the utility model adopts the following technical scheme: a kind of high sealing property stop valve, including valve body, the upper end of the valve body is screw-connected with multiple bolts one, the outside of the bolt one is provided with valve cover, the bottom of the valve cover is provided with sealing ring, the upper end of multiple bolt one is screw-connected with compression nut, the middle part of the valve cover is rotatably connected with valve stem, the upper end of the valve stem is fixedly connected with steering handle, the bottom end of the valve stem is provided with valve core, the bottom of the valve body is fixedly connected with multiple support springs, the other end of the support spring is fixedly connected with valve bottom, the rear end of the valve body is provided with electric mechanism, and the electric mechanism is used to automatically open and close the high sealing property stop valve.

[0006] Through the technical scheme, when the high-sealing stop valve needs to enhance the sealing performance, the bolt one fixed on the valve body is tightly closed with the valve cover, the sealing effect is realized by compacting the screw thread with the compression nut, the sealing ring is arranged below the valve cover to further ensure the sealing performance, the valve cover is rotatably connected to the valve stem above the valve cover to control the opening and closing of the stop valve, the handle is fixed on the upper end of the valve stem for convenient operation, the valve core is arranged below the valve stem for adjusting the passage of fluid, the support spring is installed at the bottom of the valve body and fixed to the valve bottom at the other end, and the valve core cooperates with the support spring to realize secondary sealing, and the reliability of the sealing is significantly improved by adopting the multiple sealing mechanism.

[0007] Further description of the above technical scheme:

[0008] The electric mechanism comprises a shell, the shell is arranged at the rear end of the valve body, an electric motor is fixedly connected in the shell, a rotating shaft is fixedly connected to the output end of the electric motor, a rotating plate is fixedly connected to the other end of the rotating shaft, a first fixed shaft is fixedly connected to the front side of the upper end of the rotating plate, a transmission rod is rotatably connected to the outer side of the first fixed shaft, a second fixed shaft is rotatably connected to the front end of the transmission rod, and a rotating disc is fixedly connected to the bottom end of the second fixed shaft.

[0009] Through the technical scheme, when the high-sealing stop valve needs to enhance the sealing performance, the bolt one fixed on the valve body is tightly closed with the valve cover, the sealing effect is realized by compacting the screw thread with the compression nut, the sealing ring is arranged below the valve cover to further ensure the sealing performance, the valve cover is rotatably connected to the valve stem above the valve cover to control the opening and closing of the stop valve, the handle is fixed on the upper end of the valve stem for convenient operation, the valve core is arranged below the valve stem for adjusting the passage of fluid, the support spring is installed at the bottom of the valve body and fixed to the valve bottom at the other end, and the valve core cooperates with the support spring to realize secondary sealing, and the reliability of the sealing is significantly improved by adopting the multiple sealing mechanism.

[0010] Further description of the above technical scheme:

[0011] The upper end of the valve cover is fixedly connected with a second bolt on the front and rear sides, and the outer side of the second bolt is slidably connected with a sealing block.

[0012] Through the technical scheme, the upper end of the valve cover is fixedly connected with a second bolt on the front and rear sides, and the outer side of the second bolt is slidably connected with a sealing block.

[0013] Further description of the above technical scheme:

[0014] The upper end of the valve cover is fixedly connected with a second bolt on the front and rear sides, and the outer side of the second bolt is slidably connected with a sealing block.

[0015] Through the technical scheme, the upper end of the valve cover is fixedly connected with a second bolt on the front and rear sides, and the outer side of the second bolt is slidably connected with a sealing block.

[0016] Further description of the above technical scheme:

[0017] The outer side of the support rod is slidably connected with a connecting rod, the connecting rod is clamped with the fixed block, and the rear end of the connecting rod is fixedly connected with a mounting plate.

[0018] Through the above technical scheme, the outer side of the support rod is provided with the slidably connected connecting rod, the connecting rod is clamped with the fixed block, and the rear end of the connecting rod is fixedly connected with the mounting plate.

[0019] As a further description of the above technical scheme:

[0020] The upper end of the bolt two is threadedly connected with a fixed nut one.

[0021] Through the above technical scheme, the upper end of the bolt two is connected with the fixed nut one through threads.

[0022] As a further description of the above technical scheme:

[0023] The upper end of the support rod is slidably connected with a support block.

[0024] Through the above technical scheme, the upper end of the support rod is provided with the slidably connected support block.

[0025] As a further description of the above technical scheme:

[0026] The top end of the support rod is threadedly connected with a fixed nut two.

[0027] Through the above technical scheme, the top end of the support rod is connected with the fixed nut two through threads.

[0028] The utility model has the advantages of the following beneficial effects:

[0029] 1. In the utility model, the sealing ring is subjected to axial pressure by tightening the compression nut, thereby realizing better sealing effect, the support spring is installed at the bottom of the valve core, when the valve rod moves downward, the support spring is compressed to generate reaction force, thereby keeping the valve core and the sealing ring in close contact, realizing multiple sealing mechanism, improving reliability, and solving the problem of poor sealing performance when handling high-pressure and high-temperature medium.

[0030] 2. In the utility model, the output end of the motor drives the rotating plate, the fixed shaft one on the rotating plate drives the fixed shaft two below to rotate through the transmission rod, thereby realizing automatic opening and closing of the high-sealing stop valve, and solving the problem of inconvenient operation of the high-sealing stop valve installed in a small space. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 A perspective view of the high-sealing stop valve is provided for the utility model;

[0032] Figure 2A front view of a high sealing property stop valve is provided in the utility model;

[0033] Figure 3 A structure split drawing of a high sealing property stop valve is provided in the utility model;

[0034] Figure 4 A partial structure explosion drawing of a high sealing property stop valve is provided in the utility model;

[0035] Figure 5 An electric mechanism split drawing of a high sealing property stop valve is provided in the utility model.

[0036] Legend:

[0037] 1, valve body;2, electric mechanism;201, machine shell;202, motor;203, rotating shaft;204, rotating plate;205, fixed shaft one;206, transmission rod;207, fixed shaft two;208, rotating disc;3, bolt two;4, sealing block;5, support rod;6, fixed block;7, connecting rod;8, mounting plate;9, fixed nut one;10, support block;11, fixed nut two;12, valve cover;13, sealing ring;14, bolt one;15, compression nut;16, valve stem;17, handle;18, valve core;19, support spring;20, valve bottom. Specific implementation

[0038] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0039] Reference Figure 3 and Figure 4The utility model provides a kind of embodiment: a high sealing stop valve, the upper end of valve body 1 is connected with multiple bolts one 14, the outside of bolt one 14 is provided with bonnet 12, is closed, the bottom of bonnet 12 is provided with sealing ring 13, enhance sealing, the upper end of multiple bolt one 14 is connected with compression nut 15, the middle part of bonnet 12 is rotatably connected with valve stem 16, the upper end of valve stem 16 is fixedly connected with handle 17, make operation more convenient, the bottom of valve stem 16 is provided with valve core 18, the bottom of valve body 1 is fixedly connected with multiple support springs 19, enhance sealing, the other end of support spring 19 is fixedly connected with valve bottom 20, the rear end of valve body 1 is provided with electric mechanism 2, electric mechanism 2 is used to automatically open and close high sealing stop valve;The upper end of bonnet 12 is fixedly connected with bolt two 3 on front and back sides, the outside of bolt two 3 is slidably connected with sealing block 4;

[0040] Specifically, when high sealing stop valve enhances its sealing performance, the close closure of bonnet 12 is achieved by the bolt one 14 fixed on the upper part of valve body 1, and the bolt one 14 is compacted by compression nut 15, so as to ensure the sealing effect, the sealing ring 13 is arranged below the bonnet 12 to further ensure the reliability of sealing, the upper part of bonnet 12 is connected with valve stem 16 by rotating, so that the opening and closing of stop valve is conveniently controlled, the handle 17 is fixed on the upper end of valve stem 16, so that the operation is more intuitive and convenient, the valve core 18 is arranged on the lower end of valve stem 16, for adjusting the flow of fluid, the support spring 19 is fixed on the bottom of valve body 1, and the other end of support spring 19 is fixed with valve bottom 20, valve bottom 20 and valve core 18 work together to realize secondary sealing, so as to further improve the reliability of sealing, multiple sealing mechanisms are adopted to ensure the reliability under various working conditions, the upper end of bonnet 12 is fixedly connected with bolt two 3 on front and back sides, and the outside of bolt two 3 is slidably connected with sealing block 4, so as to provide additional sealing support when needed.

[0041] Referring to Figure 3 And Figure 5 Electric mechanism 2 includes shell 201, shell 201 is arranged at the rear end of valve body 1, motor 202 is fixedly connected in the inside of shell 201, the power source of device, the output end of motor 202 is fixedly connected with rotating shaft 203, the other end of rotating shaft 203 is fixedly connected with rotating plate 204, the upper end of rotating plate 204 is fixedly connected with fixed shaft one 205 on front side, fixed shaft one 205 is rotatably connected with transmission rod 206 on the outside, so that transmission is more smooth, fixed shaft two 207 is rotatably connected with the front end of transmission rod 206, fixed shaft two 207 is fixedly connected with rotating disc 208 on the bottom end;The upper end of valve body 1 is fixedly connected with support rod 5 on left and right sides, support rod 5 is fixedly connected with fixed block 6 on the middle part;

[0042] Specifically, when operating in a small space, the output end of the motor 202 inside the casing 201 can effectively drive the rotating shaft 203 to rotate, the top end of the rotating shaft 203 is fixed with the rotating plate 204, which ensures that the rotating plate 204 can rotate synchronously with the rotating shaft 203, and the front end of the rotating plate 204 is fixed with the fixed shaft one 205 for transmission operation. The outside of the fixed shaft one 205 is connected with the transmission rod 206, so that the transmission rod 206 can rotate synchronously with the fixed shaft one 205, and the front end of the transmission rod 206 is connected with the fixed shaft two 207, which ensures the continuity of transmission. The lower side of the fixed shaft two 207 is fixed with the rotating disc 208, which drives the handle 17, thereby realizing the function of automatically opening and closing the high-sealing stop valve. In addition, in order to ensure the stability of the valve body 1, support rods 5 are fixedly connected to the left and right sides of the upper end of the valve body 1, and fixed blocks 6 are fixedly connected to the middle part of the support rods 5, which further enhances the stability and reliability. The model of the motor 202 is Y2-200L-4.

[0043] With reference to Figure 1 , Figure 2 and Figure 3 , the outside of the support rod 5 is slidably connected with the connecting rod 7, the connecting rod 7 is clamped with the fixed block 6, the rear end of the connecting rod 7 is fixedly connected with the mounting plate 8 for mounting parts; the upper end of the bolt two 3 is threadedly connected with the fixed nut one 9; the upper end of the support rod 5 is slidably connected with the support block 10; the top end of the support rod 5 is threadedly connected with the fixed nut two 11;

[0044] Specifically, the outside of the support rod 5 is provided with the slidably connected connecting rod 7, which is clamped with the fixed block 6 for stability between parts. The rear end of the connecting rod 7 is fixedly connected with the mounting plate 8 for mounting parts. The upper end of the bolt two 3 is connected with the fixed nut one 9 by threads for fixation. The upper end of the support rod 5 is connected with the support block 10 by sliding connection for enhanced support. The top end of the support rod 5 is connected with the fixed nut two 11 by threads.

[0045] Working principle: when the high-sealing stop valve enhances sealing, the bolt one 14 fixed on the valve body 1 is closed with the valve cover 12 by thread compression sealing with the compression nut 15. The lower side of the valve cover 12 is provided with the sealing ring 13 for sealing, which greatly improves the sealing performance. The upper side of the valve cover 12 is rotatably connected with the valve stem 16 for controlling the stop valve. The upper side of the valve stem 16 is fixed with the handle 17 for convenient operation. The lower side of the valve stem 16 is provided with the valve core 18 for adjustment. The bottom of the valve body 1 is fixed with the support spring 19, and the other end of the support spring 19 is fixed with the valve bottom 20 for secondary sealing with the valve core 18, which realizes multiple sealing mechanisms and improves reliability.

[0046] When the high sealing stop valve is switched in a narrow space, the motor 202 in the casing 201 drives the rotating shaft 203 to rotate through its output end, the rotating shaft 203 is fixed with the rotating plate 204 on its upper surface and rotates synchronously, the rotating plate 204 is fixed with the fixed shaft one 205 on its upper front edge and transmits power, the fixed shaft one 205 is rotatably connected with the transmission rod 206 on its outer side and rotates synchronously, the transmission rod 206 is rotatably connected with the fixed shaft two 207 on its front surface, the fixed shaft two 207 is fixed with the rotating disc 208 on its lower surface and drives the rotating handle 17, thereby realizing automatic switching of the high sealing stop valve.

[0047] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A high-sealing shut-off valve, comprising a valve body (1), characterized in that: The upper end of the valve body (1) is threaded with multiple bolts (14), and a valve cover (12) is provided on the outside of the bolts (14). A sealing ring (13) is provided at the bottom of the valve cover (12). A clamping nut (15) is threaded on the upper end of the multiple bolts (14). A valve stem (16) is rotatably connected to the middle of the valve cover (12). A handle (17) is fixedly connected to the upper end of the valve stem (16). A valve core (18) is provided at the bottom end of the valve stem (16). Multiple support springs (19) are fixedly connected to the bottom of the valve body (1). A valve bottom (20) is fixedly connected to the other end of the support springs (19). An electric mechanism (2) is provided at the rear end of the valve body (1). The electric mechanism (2) is used to automatically open and close the high-sealing shut-off valve.

2. The high-sealing shut-off valve according to claim 1, characterized in that: The electric mechanism (2) includes a housing (201), which is located at the rear end of the valve body (1). A motor (202) is fixedly connected inside the housing (201). A rotating shaft (203) is fixedly connected to the output end of the motor (202). A rotating plate (204) is fixedly connected to the other end of the rotating shaft (203). A fixed shaft (205) is fixedly connected to the front side of the upper end of the rotating plate (204). A transmission rod (206) is rotatably connected to the outer side of the fixed shaft (205). A fixed shaft (207) is rotatably connected to the front end of the transmission rod (206). A turntable (208) is fixedly connected to the bottom end of the fixed shaft (207).

3. The high-sealing shut-off valve according to claim 1, characterized in that: The valve cover (12) is fixedly connected to bolts 2 (3) on both the front and rear sides of the upper end, and a sealing block (4) is slidably connected to the outer side of bolts 2 (3).

4. A high-sealing shut-off valve according to claim 1, characterized in that: The upper left and right sides of the valve body (1) are fixedly connected to support rods (5), and the middle part of the support rods (5) is fixedly connected to a fixing block (6).

5. A high-sealing shut-off valve according to claim 4, characterized in that: The support rod (5) is slidably connected to a connecting rod (7), which engages with a fixing block (6). The rear end of the connecting rod (7) is fixedly connected to an mounting plate (8).

6. A high-sealing shut-off valve according to claim 3, characterized in that: The upper end of the bolt 2 (3) is threaded with a fixing nut 1 (9).

7. A high-sealing shut-off valve according to claim 4, characterized in that: The upper end of the support rod (5) is slidably connected to a support block (10).

8. A high-sealing shut-off valve according to claim 4, characterized in that: The top end of the support rod (5) is threaded with a fixing nut (11).

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