Two-way stop valve

Abstract

The utility model belongs to the technical field of hardware instruments, and particularly relates to a two-way stop valve which comprises a valve body mechanism, the valve body mechanism comprises a conveying pipeline, the upper surface of the conveying pipeline is rotationally connected with a flange plate, and the inner cavity face of the flange plate is connected with a sealing ring in a clamped mode. And the flange plate is provided with a dismounting mechanism in a matched mode, the dismounting mechanism comprises a tightening plate connected to the outer side face of the flange plate in a clamped mode, the end face of the tightening plate is fixedly connected with a threaded rod, the side face of the threaded rod is fixedly connected with a rocking wheel, and the outer side face of the threaded rod is in threaded connection with an arc-shaped clamping handle. According to the utility model, the rocking wheel, the screw rod and the tightening plate are in running fit, so that the tightening plate can be clamped with the outer sides of stop valves with different expansion degrees, and then elastic force can be generated through extrusion to be balanced with the pressure of an air source in an inner cavity of the stop valve, so that the safety performance during disassembly is improved, and the impact damage of the air source is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of hardware instruments, and particularly relates to a two-way stop valve. Background Technique

[0002] A stop valve, also known as a globe valve, belongs to a forced-sealing valve. Therefore, when the valve is closed, pressure must be applied to the valve flap to prevent leakage at the sealing surface. When the medium enters the valve from below the valve flap, the resistance that the operating force needs to overcome is the friction between the valve stem and the packing and the thrust generated by the pressure of the medium. The force to close the valve is greater than the force to open the valve, so the diameter of the valve stem needs to be large, otherwise the valve stem will be bent.

[0003] When the gas source is closed, the residual air pressure inside the stop valve will concentrate at the bottom of the valve stem due to its low density, and the generated pressure will continuously squeeze the valve pipeline, causing deformation. The disassembly and assembly of the stop valve are extremely inconvenient, seriously affecting the maintenance of the stop valve pipeline. Therefore, a stable disassembly tool needs to be set on the outer wall surface of the stop valve stem for stable disassembly to avoid the impact of the expanding gas inside the pipeline. Content of the Utility Model

[0004] The purpose of the utility model is to provide a two-way stop valve, aiming to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A two-way stop valve includes:

[0007] A valve body mechanism, the valve body mechanism includes a transportation pipeline, the upper surface of the transportation pipeline is rotatably connected with a flange, and a sealing ring is clamped on the inner cavity surface of the flange;

[0008] And, the flange is provided with a disassembly mechanism in cooperation. The disassembly mechanism includes a clamping plate clamped on the outer side surface of the flange. The end surface of the clamping plate is fixedly connected with a screw rod. A rocking wheel is fixedly connected to the side surface of the screw rod, and an arc-shaped clamping handle is threadedly connected to the outer side surface of the screw rod.

[0009] As a preferred scheme of the utility model, the number of the arc-shaped clamping handles is two. The end surfaces of the two arc-shaped clamping handles are rotatably connected with an opening and closing member. The opening and closing member is an integrally formed symmetric shaft body plate, and the maximum opening and closing angle of the opening and closing member is degrees.

[0010] As a preferred scheme of the utility model, a side column is fixedly connected to the inner side surface of one of the arc-shaped clamping handles. A clamping plate is clamped on the outer surface of the side column, and the side surface of the clamping plate is fixedly connected to the inner side surface of the other arc-shaped clamping handle.

[0011] As a preferred embodiment of the present utility model, a handle is fixedly connected to the end face of the arc-shaped clamping handle. A rubber sleeve is fixedly sleeved on the outer surface of the handle. Anti-slip strips are arranged at equal intervals on the surface of the rubber sleeve, and the height of the anti-slip strips is slightly higher than the outer surface of the rubber sleeve.

[0012] As a preferred embodiment of the present utility model, a flow isolation layer pad is fixedly connected to the inner cavity of the transportation pipeline, and the expansion height of the flow isolation layer pad does not exceed the vertical distance of the transportation pipeline.

[0013] As a preferred embodiment of the present utility model, a valve stem is rotatably connected to the center of the flange. A handwheel is fixedly sleeved on the top of the valve stem, and a triangular base is fixedly sleeved on the outer side surface of the valve stem.

[0014] As a preferred embodiment of the present utility model, a stabilizing ring is fixedly connected to the upper surface of the triangular base. A butterfly buckle is arranged on the lower surface of the stabilizing ring, and the butterfly buckle is inserted into the surface of the triangular base.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: Through the rotational cooperation of the rocking wheel, screw rod and the clamping plate, the clamping plate can be clamped against the outer side of the stop valve with different expansion degrees. At the same time, the clamping plate is supported by an elastic material and can generate elastic force through extrusion, which is balanced with the gas source pressure in the inner cavity of the stop valve, improving the safety performance during disassembly and avoiding the impact damage of the gas source. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. Among them:

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 is a schematic diagram of the structure of the related parts for achieving the stable disassembly effect of the external pipeline of the stop valve in the present utility model;

[0019] Figure 3 is a schematic diagram of the structure of the related parts for achieving the rotational stop effect in the present utility model;

[0020] Figure 4 is a schematic diagram of the structure of the related parts for achieving the air supply effect in the inner cavity in the present utility model.

[0021] In the figure: 100, valve body mechanism; 101, transportation pipeline; 102, isolation layer gasket; 103, flange; 104, sealing ring; 105, valve stem; 106, handwheel; 107, stabilizing ring; 108, triangular base; 109, butterfly buckle; 200, disassembly mechanism; 201, arc-shaped clamping handle; 202, opening and closing part; 203, screw; 204, tightening plate; 205, rocking wheel; 206, side column; 207, clamping plate; 208, handle; 209, rubber sleeve. Specific Embodiment

[0022] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the specific embodiments of the present utility model will be described in detail below with reference to the accompanying drawings of the specification.

[0023] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0024] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that can be included in at least one implementation manner of the present utility model. The "in one embodiment" appearing in different places in this specification does not all refer to the same embodiment, nor is it a separate or alternative embodiment that excludes other embodiments.

[0025] Embodiment 1

[0026] Referring to Figure 1-2 , this is the first embodiment of the present utility model. This embodiment provides a two-way stop valve, including,

[0027] A valve body mechanism 100, the valve body mechanism 100 includes a transportation pipeline 101, a flange 103 is rotatably connected to the upper surface of the transportation pipeline 101, and a sealing ring 104 is clamped on the inner cavity surface of the flange 103;

[0028] And, a disassembly mechanism 200 is arranged in cooperation with the flange 103. The disassembly mechanism 200 includes a tightening plate 204 clamped on the outer side surface of the flange 103. A screw 203 is fixedly connected to the end surface of the tightening plate 204. A rocking wheel 205 is fixedly connected to the side surface of the screw 203, and an arc-shaped clamping handle 201 is threadedly connected to the outer side surface of the screw 203.

[0029] Specifically, the rotational connection between the transportation pipeline 101 and the flange 103 enables the top of the transportation pipeline 101 to achieve a better sealing effect when ventilated. The cooperative setting of the sealing ring 104 and the flange 103 can enhance the sealing performance of the flange 103 and prevent gas leakage. The rotational cooperation among the rocking wheel 205, the screw 203, and the clamping plate 204 enables the clamping plate 204 to be clamped against the outer side of the stop valve with different degrees of expansion. At the same time, the clamping plate 204 is supported by an elastic material and can generate elastic force through extrusion, balancing the gas source pressure in the inner cavity of the stop valve, improving the safety performance during disassembly, and avoiding the impact damage of the gas source. The threaded connection between the arc-shaped clamping handle 201 and the screw 203 makes the disassembly tool easy to hold, improving the practicality of the disassembly tool.

[0030] Preferably, the number of the arc-shaped clamping handles 201 is two. An opening and closing member 202 is rotatably connected to the end faces of the two arc-shaped clamping handles 201. The opening and closing member 202 is an integrally formed symmetric shaft body plate, and the maximum opening and closing angle of the opening and closing member 202 is 180 degrees.

[0031] It should be noted that the rotational connection between the opening and closing member 202 and the arc-shaped clamping handle 201 enables the arc-shaped clamping handle 201 to be loosened and clamped at any angle, facilitating disassembly.

[0032] During use, first, the sealing ring 104 is snap-fitted into the inner cavity of the flange 103. Then, the flange 103 is rotatably connected to the top of the transportation pipeline 101. Next, the screw 203 is threadedly installed on the side of the arc-shaped clamping handle 201, and the clamping plate 204 is fixedly assembled with the end face of the screw 203. Finally, the clamping plate 204 is snap-fitted with the flange 103.

[0033] In summary, through the rotational cooperation among the rocking wheel 205, the screw 203, and the clamping plate 204, the clamping plate 204 can be clamped against the outer side of the stop valve with different degrees of expansion. At the same time, the clamping plate 204 is supported by an elastic material and can generate elastic force through extrusion, balancing the gas source pressure in the inner cavity of the stop valve, improving the safety performance during disassembly, and avoiding the impact damage of the gas source.

[0034] Embodiment 2

[0035] Refer to Figure 2-3 , which is the second embodiment of the present invention. Different from the previous embodiment, this embodiment provides relevant parts for achieving the stable gripping effect of the handle 208.

[0036] Specifically, a side column 206 is fixedly connected to the inner side surface of one of the arc-shaped clamping handles 201. A clamping plate 207 is snap-fitted on the outer surface of the side column 206. The side surface of the clamping plate 207 is fixedly connected to the inner side surface of the other arc-shaped clamping handle 201.

[0037] Furthermore, the clamping cooperation between the side column 206, the clamping plate 207 and the arc-shaped clamping handle 201 enables the arc-shaped clamping handle 201 to be stably locked, facilitating the storage and arrangement of the disassembly tool.

[0038] Among them, a handle 208 is fixedly connected to the end face of the arc-shaped clamping handle 201. A rubber sleeve 209 is fixedly sleeved on the outer surface of the handle 208. Anti-slip strips are arranged at equal intervals on the surface of the rubber sleeve 209, and the height of the anti-slip strips is slightly higher than the outer surface of the rubber sleeve 209.

[0039] In the above, the fixed sleeving of the handle 208 and the rubber sleeve 209 enables the disassembly tool to be stably held, indirectly improving the clamping efficiency of the globe valve. At the same time, the setting that the anti-slip strips are slightly higher than the rubber sleeve 209 improves the holding stability by increasing the friction force.

[0040] Preferably, a flow isolation layer pad 102 is fixedly connected to the inner cavity of the transportation pipeline 101, and the expansion height of the flow isolation layer pad 102 does not exceed the vertical distance of the transportation pipeline 101.

[0041] Among them, the setting that the flow isolation layer pad 102 does not exceed the vertical distance of the transportation pipeline 101 can ensure that the bottom air source of the globe valve will not flow to the top position, and the sealing effect of the globe valve is better.

[0042] During use, first, the side column 206 and the clamping plate 207 are arranged on the side of the arc-shaped clamping handle 201. Then, the handle 208 is fixedly installed on the end face of the arc-shaped clamping handle 201, and the rubber sleeve 209 is fixedly sleeved on the outer surface of the handle 208. At the same time, the flow isolation layer pad 102 is fixedly connected to the inner cavity of the transportation pipeline 101 to ensure the stable transportation of the air source.

[0043] In summary, through the fixed sleeving of the handle 208 and the rubber sleeve 209, the disassembly tool can be stably held, indirectly improving the clamping efficiency of the globe valve. At the same time, the setting that the anti-slip strips are slightly higher than the rubber sleeve 209 improves the holding stability by increasing the friction force. The setting that the flow isolation layer pad 102 does not exceed the vertical distance of the transportation pipeline 101 can ensure that the bottom air source of the globe valve will not flow to the top position, and the sealing effect of the globe valve is better.

[0044] Embodiment 3

[0045] Refer to Figure 2-4 , this is the third embodiment of the present invention. Different from the previous embodiment, this embodiment provides relevant parts for realizing the stable cut-off effect of the globe valve.

[0046] Specifically, a valve stem 105 is rotatably connected to the center of the flange 103. A handwheel 106 is fixedly sleeved on the top of the valve stem 105. A triangular base 108 is fixedly sleeved on the outer side of the valve stem 105.

[0047] Furthermore, the valve stem 105 is fixedly sleeved with the handwheel 106, enabling personnel to rotate it independently. The valve stem 105 can cut off and connect the gas source in the inner cavity. At the same time, the triangular base 108 is fixedly sleeved with the valve stem 105, making the fixation of the stabilizing ring 107 more stable.

[0048] Preferably, the stabilizing ring 107 is fixedly connected to the upper surface of the triangular base 108. A butterfly buckle 109 is arranged on the lower surface of the stabilizing ring 107, and the butterfly buckle 109 is inserted into the surface of the triangular base 108.

[0049] Among them, the insertion of the butterfly buckle 109 into the triangular base 108 can insert and stabilize the triangular base 108 again, indirectly ensuring the supporting effect of the stabilizing ring 107 on the valve stem 105.

[0050] During use, first insert the valve stem 105 through and into the surface of the flange 103. Then, adaptively install the handwheel 106 on the top of the valve stem 105. Next, fixedly connect the stabilizing ring 107 to the triangular base 108, and the triangular base 108 is fixedly sleeved on the outer side surface of the valve stem 105. Finally, insert the butterfly buckle 109 into the surface of the triangular base 108.

[0051] In summary, through the fixed sleeve connection between the valve stem 105 and the handwheel 106, personnel can rotate it independently, and the valve stem 105 can cut off and connect the gas source in the inner cavity. At the same time, the fixed sleeve connection between the triangular base 108 and the valve stem 105 makes the fixation of the stabilizing ring 107 more stable. Through the insertion of the butterfly buckle 109 into the triangular base 108, the triangular base 108 can be inserted and stabilized again, indirectly ensuring the supporting effect of the stabilizing ring 107 on the valve stem 105.

[0052] Importantly, it should be noted that the construction and arrangement of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible without substantially departing from the novel teachings and advantages of the subject matter described in this application (for example, the dimensions, scales, structures, shapes and proportions of various elements, and parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, color, changes in orientation, etc.). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature, number or position of discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means-plus-function" clause is intended to cover the structures that perform the recited function described herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present utility model. Therefore, the present utility model is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0053] In addition, in order to provide a concise description of the exemplary embodiments, not all features of the actual embodiments may be described (i.e., those features that are not relevant to the currently considered best mode of implementing the present utility model or those features that are not relevant to the implementation of the present utility model).

[0054] It should be understood that in the development of any actual implementation, as in any engineering or design project, a large number of specific implementation decisions may be made. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, without excessive experimentation, such development efforts will be a routine task of design, manufacturing and production.

[0055] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit them. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model may be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present utility model, and they should all be covered within the scope of the claims of the present utility model.

Claims

1. A two-way stop valve, characterized in that: including, a valve body mechanism (100), the valve body mechanism (100) includes a transportation pipeline (101), a flange (103) is rotatably connected to the upper surface of the transportation pipeline (101), and a sealing ring (104) is clamped on the inner cavity surface of the flange (103); and, a disassembly mechanism (200) is cooperatively provided with the flange (103), the disassembly mechanism (200) includes a clamping plate (204) clamped on the outer side surface of the flange (103), a screw rod (203) is fixedly connected to the end surface of the clamping plate (204), a rocking wheel (205) is fixedly connected to the side surface of the screw rod (203), and an arc-shaped clamping handle (201) is threadedly connected to the outer side surface of the screw rod (203).

2. The double-pass stop valve according to claim 1, characterized in that: The number of the arc-shaped clamping handles (201) is two, an opening and closing member (202) is rotatably connected to the end surfaces of the two arc-shaped clamping handles (201), the opening and closing member (202) is an integrally formed symmetric shaft body plate, and the maximum opening and closing angle of the opening and closing member (202) is 180 degrees.

3. A two-way stop valve according to claim 2, characterized in that: A side column (206) is fixedly connected to the inner side surface of one of the arc-shaped clamping handles (201), a clamping plate (207) is clamped on the outer surface of the side column (206), and the side surface of the clamping plate (207) is fixedly connected to the inner side surface of the other arc-shaped clamping handle (201).

4. A two-way stop valve according to claim 3, characterized in that: A handle (208) is fixedly connected to the end surface of the arc-shaped clamping handle (201), a rubber sleeve (209) is fixedly sleeved on the outer surface of the handle (208), anti-slip stripes are arranged equidistantly on the surface of the rubber sleeve (209), and the height of the anti-slip stripes is slightly higher than the outer surface of the rubber sleeve (209).

5. A two-way stop valve according to claim 4, characterized in that: A flow isolation layer pad (102) is fixedly connected to the inner cavity of the transportation pipeline (101), and the expansion height of the flow isolation layer pad (102) does not exceed the vertical distance of the transportation pipeline (101).

6. The double-pass stop valve according to claim 5, characterized in that: A valve rod (105) is rotatably connected to the center of the flange (103), a hand wheel (106) is fixedly sleeved on the top of the valve rod (105), and a triangular base (108) is fixedly sleeved on the outer side surface of the valve rod (105).

7. A two-way stop valve according to claim 6, characterized in that: A stabilizing ring (107) is fixedly connected to the upper surface of the triangular base (108), a butterfly buckle (109) is arranged on the lower surface of the stabilizing ring (107), and the butterfly buckle (109) is inserted into the surface of the triangular base (108).

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