Automatic opening and closing stop valve

Abstract

The utility model relates to an automatic opening and closing stop valve, which comprises a valve body, a valve rod, a valve rod and a valve rod, the valve body is provided with a rotating space, a first fluid port and a second fluid port, and the rotating space is in fluid communication with the first fluid port and the second fluid port; the valve element is provided with a fluid through channel, the fluid through channel penetrates through the valve element, the valve element is arranged in the rotating space of the valve body, and the valve element can rotate in the rotating space; the valve rod and the valve element are fixedly installed together; the rotating rod is fixedly connected to the valve rod, the rotating rod drives the valve rod to rotate when rotating, and the valve rod drives the valve element to rotate in the rotating space of the valve body. In this way, the fluid through channel of the valve element is selectively in fluid communication with or disconnected from the first fluid through opening and the second fluid through opening.

Description

Technical Field

[0001] This utility model relates to the field of valves, specifically to an automatic on / off shut-off valve. Background Technology

[0002] Gate valves are used to open or close fluid passages. Generally, a gate valve consists of a valve stem, a valve core, and a valve body. The valve core is movably installed inside the valve body, while the valve stem and valve core are fixedly connected. By actuating or rotating the valve stem, the valve core deflects, thus opening or closing the fluid passage. However, in current technology, the actuation or rotation of the valve stem is primarily performed manually. In certain industries, such as the chemical industry involving highly toxic substances or other hazards to human health, manual actuation or rotation of the valve stem poses health risks. For example, Chinese utility model patent application number CN202520458025.X discloses a quick-opening and closing stop valve; it includes a valve body, valve stem, valve disc, valve seat, and handwheel. Its features include: a valve stem nut, which is fixedly mounted on the valve body, and the valve stem is fitted inside the valve stem nut; a radial guide pin is provided at the end of the valve stem; a spiral guide groove that cooperates with the guide pin is opened inside the valve disc; the sealing surface of the valve disc forms an angle of 15°-30° with the sealing surface of the valve seat; this utility model achieves rapid opening of the valve disc, realizing rapid closing and opening of the valve. The stop valve in this patent requires manual rotation of the handwheel. Summary of the Invention

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an automatic on / off shut-off valve.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: an automatic on / off shut-off valve, comprising:

[0005] A valve body having a rotation space, a first fluid inlet, and a second fluid inlet, wherein the rotation space is in fluid communication with the first fluid inlet and the second fluid inlet;

[0006] A valve core having a fluid passage extending through it, the valve core being placed in the rotation space of the valve body, and the valve core being able to rotate within the rotation space;

[0007] A valve stem, wherein the valve stem and the valve core are fixedly installed together;

[0008] And a rotating rod, which is fixedly connected to the valve stem. When the rotating rod rotates, it drives the valve stem to rotate. The valve stem drives the valve core to rotate in the rotation space of the valve body, so that the fluid passage of the valve core can selectively communicate or disconnect with the first fluid port and the second fluid port.

[0009] In some embodiments of this application, a first connecting rod is further included, one end of which is fixedly connected to the rotating rod, and the other end of which is fixedly connected to the valve stem, thereby causing the rotating rod to drive the valve stem to rotate.

[0010] In some embodiments of this application, the valve stem is provided with a first clamping claw and a second clamping claw, and a clamping space is formed between the first clamping claw and the second clamping claw. The other end of the first connecting rod is inserted into the clamping space, so that the first connecting rod is firmly clamped by the first clamping claw and the second clamping claw.

[0011] In some embodiments of this application, the valve stem is further provided with a mounting through hole, the mounting through hole extending through the valve stem, and the valve core is fixedly mounted to the mounting through hole, so that the valve stem is fixedly sleeved on the valve core, and at least a portion of the valve core is located on one side of the valve stem, and another portion of the valve core is located on the other side of the valve stem, so that the first portion and the second portion of the valve core extending out of the mounting through hole of the valve stem are symmetrically arranged about the valve stem.

[0012] In some embodiments of this application, the valve body is further provided with a first mounting hole and a second mounting hole, both of which are through the valve body and are respectively connected to the rotation space on the valve body, and the extension line of the axis of the first mounting hole coincides with the extension line of the axis of the second mounting hole.

[0013] In some embodiments of this application, a first sealing end cap and a second sealing end cap are also included. The first sealing end cap is fixedly installed together with the valve body by bolts or screws, and the first sealing end cap covers the first mounting hole of the valve body. The second sealing end cap is fixedly installed together with the valve body by bolts or screws, and the second sealing end cap covers the second mounting hole of the valve body.

[0014] In some embodiments of this application, a first bearing is fixedly mounted on the first sealing end cap, and at least a portion of the first connecting rod is fixedly mounted together with the first bearing, thereby causing the first connecting rod to rotate relative to the first sealing end cap.

[0015] In some embodiments of this application, a second connecting rod is further included. A second bearing is fixedly installed on the second sealing end cover. At least a portion of the second connecting rod is fixedly installed together with the second bearing, and at least a portion of the second connecting rod extends out of the second bearing and is fixedly connected to the valve core, so that when the valve core rotates, it drives the second connecting rod to rotate relative to the second sealing end cover.

[0016] In some embodiments of this application, the valve body further includes a first connecting flange and a second connecting flange. The valve body is provided with a first insertion through hole and a second insertion through hole. The first insertion through hole extends through the valve body and is in fluid communication with the second fluid port. The second insertion through hole extends through the valve body and is in fluid communication with the first fluid port. The first connecting flange is inserted into the first insertion through hole, thereby fixing the first connecting flange to the valve body. The second connecting flange is inserted into the second insertion through hole, thereby fixing the second connecting flange to the valve body.

[0017] The beneficial effects of this application are: the automatic shut-off valve provided by this application has a simple structure and is easy to assemble and disassemble. The rotating rod of the shut-off valve is connected to the drive motor, the drive motor drives the rotating rod to rotate, the rotating rod drives the valve stem to rotate, and the valve stem drives the valve core to rotate. The fluid passage on the valve core selectively connects or cuts off the first fluid port and the second fluid port when rotating. Compared with the shut-off valves in the prior art that need to be opened or closed by a person, the shut-off valve provided by this application can realize automatic opening or closing, and is suitable for some special industries, such as the chemical industry with highly toxic fluids. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the automatic on / off shut-off valve provided by this utility model.

[0019] Figure 2 Exploded view of the components of the automatic on / off shut-off valve provided by this utility model.

[0020] Figure 3 An exploded view of another component of the automatic on / off shut-off valve provided by this utility model.

[0021] Figure 4 An exploded view of another component of the automatic on / off shut-off valve provided by this utility model.

[0022] Figure 5 This is a schematic diagram of the valve body of the automatic on / off shut-off valve provided by this utility model. Detailed Implementation

[0023] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0024] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments, and the operational steps involved in each embodiment can also be rearranged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for clearly describing a particular embodiment and do not imply that they represent the necessary components and / or order.

[0025] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0026] Please refer to Figure 1-5 This application provides an automatic on / off shut-off valve (hereinafter referred to as "the shut-off valve"), which is used to open or close a fluid passage. The shut-off valve provided in this application can automatically open or close a fluid passage, unlike existing technologies, as it requires no human intervention.

[0027] The shut-off valve includes:

[0028] The valve body 1 has a rotation space 110, a first fluid inlet 113, and a second fluid inlet 114. The rotation space 110 is in fluid communication with the first fluid inlet 113 and the second fluid inlet 114.

[0029] The valve core 5 has a fluid passage 50 that passes through the valve core 5. The valve core 5 is placed in the rotation space 110 of the valve body 1 and is able to rotate in the rotation space 110.

[0030] Valve stem 4, the valve stem 4 and the valve core 5 are fixedly installed together;

[0031] The valve body 1 includes a rotating rod 2, which is fixedly connected to the valve stem 4. When the rotating rod 2 rotates, it drives the valve stem 4 to rotate, which in turn drives the valve core 5 to rotate within the rotation space 110 of the valve body 1. This allows the fluid passage 50 of the valve core 5 to selectively connect or disconnect with the first fluid port 113 and the second fluid port 114. In this application, the rotating rod 2 is fixedly connected to a drive motor (not shown), which drives the rotating rod 2 to rotate. Generally, the rotating rod 2 and the output shaft of the drive motor are connected via a coupling; that is, one end of the coupling is fixedly connected to the output shaft of the drive motor, and the other end is fixedly connected to the rotating rod 2. For those skilled in the art, the drive motor is a well-known technology; any drive motor capable of providing sufficient torque output is acceptable.

[0032] In some embodiments of this application, please refer to Figure 1-5 The shut-off valve also includes a first connecting rod 3, one end of which is fixedly connected to the rotating rod 2, and the other end of which is fixedly connected to the valve stem 4, thereby causing the rotating rod 2 to drive the valve stem 4 to rotate. In this application, the fixed connection between the first connecting rod 3 and the rotating rod 2 can be welding, insertion, or other methods. For example, the rotating rod 2 may have an insertion hole, and one end of the first connecting rod may be inserted into the insertion hole of the rotating rod 2 to achieve a fixed connection. The fixed connection between the other end of the first connecting rod 3 and the valve stem 4 can be welding, insertion, or snap-fit.

[0033] In some embodiments of this application, please refer to Figure 1-5 The valve stem 4 is provided with a first clamping claw 41 and a second clamping claw 42, and a clamping space 43 is formed between the first clamping claw 41 and the second clamping claw 42. The other end of the first connecting rod 3 is inserted into the clamping space 43, so that the first connecting rod 3 is firmly clamped by the first clamping claw 41 and the second clamping claw 42.

[0034] In some embodiments of this application, please refer to Figure 1-5 The valve stem 4 is also provided with a mounting through hole 40, which passes through the valve stem 4. The valve core 5 is fixedly installed to the mounting through hole 40, so that the valve stem 4 is fixedly sleeved on the valve core 5. At least a part of the valve core 5 is located on one side of the valve stem 4, and the other part of the valve core 5 is located on the other side of the valve stem 4, so that the first part 51 and the second part 52 of the valve core 5 extending out of the mounting through hole 40 of the valve stem 4 are symmetrically arranged about the valve stem 4.

[0035] In some embodiments of this application, please refer to Figure 1-5The valve body 1 is further provided with a first mounting hole 111 and a second mounting hole 112. Both the first mounting hole 111 and the second mounting hole 112 penetrate the valve body 1 and are respectively connected to the rotation space 110 on the valve body 1. Furthermore, the extension line of the axis of the first mounting hole 111 coincides with the extension line of the axis of the second mounting hole 112. This coincidence can be understood as the center of the cross-section of the first mounting hole 111 and the center of the cross-section of the second mounting hole 112 being located on the same straight line.

[0036] In some embodiments of this application, please refer to Figure 1-5 The shut-off valve also includes a first sealing end cap 6 and a second sealing end cap 7. The first sealing end cap 6 is fixedly installed together with the valve body 1 by bolts or screws, and the first sealing end cap 6 covers the first mounting hole 111 of the valve body 1. The second sealing end cap 7 is fixedly installed together with the valve body 1 by bolts or screws, and the second sealing end cap 7 covers the second mounting hole 112 of the valve body 1.

[0037] In some embodiments of this application, please refer to Figure 1-5 A first bearing 9 is fixedly mounted on the first sealing end cap 6, and at least a portion of the first connecting rod 3 is fixedly mounted together with the first bearing 9, thereby allowing the first connecting rod 3 to rotate relative to the first sealing end cap 6. In this application, the first sealing end cap 6 is provided with a first bearing mounting hole (not shown in the figure), which extends through the first sealing end cap 6, and the first bearing 9 is fixedly mounted in the first bearing mounting hole. The first connecting rod 3 is generally cylindrical, and the first connecting rod 3 and the first bearing 9 are fixedly mounted together by an interference fit.

[0038] In some embodiments of this application, please refer to Figure 1-5 The shut-off valve also includes a second connecting rod 8. A second bearing 10 is sealed and fixedly mounted on the second sealing end cap 7. At least a portion of the second connecting rod 8 is fixedly mounted together with the second bearing 10, and at least a portion of the second connecting rod 8 extends out of the second bearing 10 and is fixedly connected to the valve core 5, so that when the valve core 5 rotates, it drives the second connecting rod 8 to rotate relative to the second sealing end cap 7. In this application, the second sealing end cap 7 is provided with a second bearing mounting hole (not shown in the figure), which extends through the second sealing end cap 7, and the second bearing 10 is fixedly mounted in the second bearing mounting hole. The second connecting rod 8 is generally cylindrical, and the second connecting rod 8 and the second bearing 10 are fixedly connected together by an interference fit.

[0039] In some embodiments of this application, please refer to Figure 1-5 The valve body 1 further includes a first connecting flange 12 and a second connecting flange 13. The valve body 1 is provided with a first insertion through hole 115 and a second insertion through hole 116. The first insertion through hole 115 passes through the valve body 1 and is in fluid communication with the second fluid port 114. The second insertion through hole 116 passes through the valve body 1 and is in fluid communication with the first fluid port 113. The first connecting flange 12 is inserted into the first insertion through hole 115, thereby fixing the first connecting flange 12 to the valve body 1. The second connecting flange 13 is inserted into the second insertion through hole 116, thereby fixing the second connecting flange 13 to the valve body 1. In this application, at least a portion of the first connecting flange 12 is cylindrical, and the first connecting flange 12 is inserted into the first insertion through hole 115 of the valve body 1 by an interference fit; at least a portion of the second connecting flange 16 is cylindrical, and the second connecting flange 16 is inserted into the second insertion through hole 116 of the valve body 1 by an interference fit. The first connecting flange 12 and the second connecting flange 16 are used to connect and communicate with other equipment or connecting pipelines.

[0040] The automatic shut-off valve provided in this application has a simple structure and is easy to assemble and disassemble. The rotating rod of the shut-off valve is connected to a drive motor. The drive motor drives the rotating rod to rotate, which in turn drives the valve stem to rotate. The valve stem drives the valve core to rotate. The fluid passage on the valve core selectively connects or cuts off the first fluid port and the second fluid port when rotating. Compared with the shut-off valves in the prior art that need to be opened or closed by a person, the shut-off valve provided in this application can achieve automatic opening or closing. It is suitable for some special industries, such as the chemical industry with highly toxic fluids.

[0041] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. An automatic on / off shut-off valve, characterized in that, include: A valve body having a rotation space, a first fluid inlet, and a second fluid inlet, wherein the rotation space is in fluid communication with the first fluid inlet and the second fluid inlet; A valve core having a fluid passage extending through it, the valve core being placed in the rotation space of the valve body, and the valve core being able to rotate within the rotation space; A valve stem, wherein the valve stem and the valve core are fixedly installed together; And a rotating rod, which is fixedly connected to the valve stem. When the rotating rod rotates, it drives the valve stem to rotate. The valve stem drives the valve core to rotate in the rotation space of the valve body, so that the fluid passage of the valve core can selectively communicate or disconnect with the first fluid port and the second fluid port.

2. The automatic on / off shut-off valve according to claim 1, characterized in that, It also includes a first connecting rod, one end of which is fixedly connected to the rotating rod, and the other end of which is fixedly connected to the valve stem, so that the rotating rod drives the valve stem to rotate.

3. The automatic on / off shut-off valve according to claim 2, characterized in that, The valve stem is provided with a first clamping claw and a second clamping claw, and a clamping space is formed between the first clamping claw and the second clamping claw. The other end of the first connecting rod is inserted into the clamping space, so that the first connecting rod is firmly clamped by the first clamping claw and the second clamping claw.

4. The automatic on / off shut-off valve according to claim 1, characterized in that, The valve stem is also provided with a mounting through hole, which extends through the valve stem. The valve core is fixedly installed in the mounting through hole, so that the valve stem is fixedly sleeved on the valve core. At least a portion of the valve core is located on one side of the valve stem, and the other portion of the valve core is located on the other side of the valve stem, so that the first portion and the second portion of the valve core extending out of the mounting through hole of the valve stem are symmetrically arranged about the valve stem.

5. The automatic on / off shut-off valve according to claim 2, characterized in that, The valve body is also provided with a first mounting hole and a second mounting hole, both of which are through the valve body and are connected to the rotation space on the valve body. The extension line of the axis of the first mounting hole coincides with the extension line of the axis of the second mounting hole.

6. The automatic on / off shut-off valve according to claim 5, characterized in that, It also includes a first sealing end cap and a second sealing end cap. The first sealing end cap is fixedly installed to the valve body by bolts or screws, and the first sealing end cap covers the first mounting hole of the valve body. The second sealing end cap is fixedly installed to the valve body by bolts or screws, and the second sealing end cap covers the second mounting hole of the valve body.

7. The automatic on / off shut-off valve according to claim 6, characterized in that, A first bearing is fixedly installed on the first sealing end cap, and at least a portion of the first connecting rod is fixedly installed together with the first bearing, thereby allowing the first connecting rod to rotate relative to the first sealing end cap.

8. The automatic on / off shut-off valve according to claim 6, characterized in that, It also includes a second connecting rod, on which a second bearing is fixedly installed in a sealed manner. At least a portion of the second connecting rod is fixedly installed together with the second bearing, and at least a portion of the second connecting rod extends out of the second bearing and is fixedly connected to the valve core, so that when the valve core rotates, it drives the second connecting rod to rotate relative to the second sealing end cover.

9. The automatic on / off shut-off valve according to claim 1, characterized in that, The valve body further includes a first connecting flange and a second connecting flange. The valve body is provided with a first insertion through hole and a second insertion through hole. The first insertion through hole extends through the valve body and is in fluid communication with the second fluid port. The second insertion through hole extends through the valve body and is in fluid communication with the first fluid port. The first connecting flange is inserted into the first insertion through hole, thereby fixing the first connecting flange to the valve body. The second connecting flange is inserted into the second insertion through hole, thereby fixing the second connecting flange to the valve body.

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