Loose joint stop check valve

Abstract

The utility model discloses a loose joint stop check valve which comprises a valve body, a valve element is arranged in the valve body, and threaded connectors are fixedly communicated with the left side and the right side of the valve body. Through mutual cooperation of the valve body, the threaded connector, the loose joint connector, the valve cover, the fixing opening, the rectangular plate, the inserting groove, the mounting mechanism, the concave block, the connecting column, the movable plate, the guide opening, the inserting block, the inserting groove and the limiting spring, the effect that the valve cover can be conveniently detached from the valve body is achieved, the whole process is easy and convenient to operate, no detaching tool is used, and the cost is reduced. And therefore, great convenience is provided for the user.

Description

Technical Field

[0001] The utility model relates to the technical field of check valves, in particular to a flexible stop check valve. Background Art

[0002] A check valve is a valve whose opening and closing parts are circular discs. The circular discs rely on their own weight and medium pressure to move to cut off the water inlet and outlet of the check valve. After the circular disc in the check valve moves to cut off the water inlet and outlet of the valve body, the water at the water outlet of the valve body flows back into the valve body due to negative pressure. The pressure gauge or temperature sensor for detecting water flow is usually installed at the water outlet. When it is necessary to detect the water pressure and water temperature, the water at the water outlet will flow back into the valve body, which will affect the detection results.

[0003] At present, as in the patent application number CN201620701647.1, the utility model proposes a check valve, including a valve body, a valve seat, a valve cover, and a valve flap, wherein the axis of the valve seat forms a predetermined angle with the axis of the valve body channel of the valve body, and the valve seat is plugged into the valve body. According to the check valve of the utility model, the axis of the valve seat forms a predetermined angle with the axis of the valve body channel of the valve body, so that the check valve can be reliably sealed or opened, with a simple structure and reliable performance.

[0004] However, in actual use, the check valve of the above patent has the following defects: since the valve cover is connected to the valve body by bolts, external tools such as screwdrivers are required for disassembly, which causes great inconvenience to the user. For this reason, we propose a movable stop check valve. Utility Model Content

[0005] The utility model aims to provide a flexible stop check valve to solve the problems raised in the above background technology.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a flexible stop check valve, comprising:

[0007] Valve body;

[0008] Threaded connectors, both left and right sides of the valve body are fixedly connected with threaded connectors;

[0009] A live joint, wherein the side of the threaded connector away from the valve body is threadedly connected with a live joint;

[0010] A valve cover, the top of the valve body is movably connected with the valve cover;

[0011] A fixing opening is provided on both the left and right sides of the top of the valve cover;

[0012] A rectangular plate, the valve cover is movably connected with the rectangular plate inside, the bottom of the rectangular plate is fixedly connected to the top of the valve body, and the top of the rectangular plate passes through the fixed opening and extends to the outside of the fixed opening;

[0013] A plug-in slot, wherein the two rectangular plates are provided with a plug-in slot on one side close to each other;

[0014] A mounting mechanism is provided on the top of the valve cover.

[0015] Furthermore, the installation mechanism includes a concave block, a connecting column, a movable plate, a guide port, a plug-in block, a plug-in slot and a limit spring, and the concave block is fixedly installed in the middle of the top end of the valve cover.

[0016] Furthermore, the left and right sides of the inner wall of the concave block are fixedly connected via a connecting column, and the left and right sides of the surface of the connecting column are slidably connected with movable plates.

[0017] Furthermore, the surface of the movable plate is in movable contact with the inner wall of the concave block, and guide openings are provided below both left and right sides of the concave block.

[0018] Furthermore, a plug-in block is fixedly connected to the lower part of the two movable plates on the side away from each other, and the plug-in block on the side away from the movable plate sequentially penetrates the guide port and the plug-in slot and extends to the inside of the plug-in slot.

[0019] Furthermore, the plug-in block is movably connected to the plug-in slot, and a limit spring is sleeved at the center of the surface of the connecting column.

[0020] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0021] The utility model achieves the effect of facilitating the removal of the valve cover from the valve body through the mutual cooperation of the valve body, threaded connector, live joint, valve cover, fixed port, rectangular plate, plug-in slot, mounting mechanism, concave block, connecting column, movable plate, guide port, plug-in block, plug-in slot and limit spring, and the whole process is easy to operate without using any disassembly tools, thereby providing great convenience to the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a front view structural schematic diagram of the utility model;

[0023] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the valve cover of the utility model;

[0025] Figure 4 It is a structural schematic diagram of the concave block of the utility model;

[0026] Figure 5 It is a schematic diagram of the assembly structure of the valve body and the rectangular plate of the utility model.

[0027] In the figure: 1. valve body; 2. threaded connector; 3. flexible joint; 4. valve cover; 5. fixing port; 6. rectangular plate; 7. plug-in slot; 8. mounting mechanism; 81. concave block; 82. connecting column; 83. movable plate; 84. guide port; 85. plug-in block; 87. limit spring. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] See also Figure 1-5A movable stop check valve comprises a valve body 1, a valve core (not shown) is arranged inside the valve body 1, threaded connectors 2 are fixedly connected on the left and right sides of the valve body 1, a movable interface 3 is threadedly connected to the side of the threaded connector 2 away from the valve body 1, a valve cover 4 is movably connected to the top of the valve body 1, a fixing port 5 is provided on the left and right sides of the top of the valve cover 4, a rectangular plate 6 is movably connected to the inside of the valve cover 4, the bottom of the rectangular plate 6 is fixedly connected to the top of the valve body 1, the top of the rectangular plate 6 passes through the fixing port 5 and extends to the outside of the fixing port 5, a plug-in groove 7 is provided on the side where the two rectangular plates 6 are close to each other, and a mounting mechanism 8 is provided on the top of the valve cover 4.

[0032] In specific implementation, the installation mechanism 8 includes a concave block 81 , a connecting column 82 , a movable plate 83 , a guide port 84 , a plug-in block 85 and a limit spring 87 , and the concave block 81 is fixedly installed at the middle of the top end of the valve cover 4 .

[0033] Specifically, the left and right sides of the inner wall of the concave block 81 are fixedly connected via a connecting column 82 , and the left and right sides of the surface of the connecting column 82 are slidably connected with movable plates 83 .

[0034] During specific implementation, the surface of the movable plate 83 is in movable contact with the inner wall of the concave block 81 , and guide openings 84 are provided below both left and right sides of the concave block 81 .

[0035] Specifically, a plug-in block 85 is fixedly connected to the lower part of the two movable plates 83 away from each other. The plug-in block 85 passes through the guide opening 84 and the plug-in slot 7 in sequence on the side away from the movable plate 83 and extends to the inside of the plug-in slot 7.

[0036] During specific implementation, the plug-in block 85 is movably connected to the plug-in slot 7 , and a limit spring 87 is sleeved at the center of the surface of the connecting column 82 .

[0037] In actual application: when the valve cover 4 needs to be removed, it is only necessary to pull the movable plate 83 to the side away from the plug-in slot 7, which can drive the movable plate 83 and the plug-in block 85 to move to the side away from the plug-in slot 7, and at the same time compress the limit spring 87, so that the plug-in block 85 is separated from the plug-in slot 7, and then pull the movable plate 83 upward, thereby driving the movable plate 83, the concave block 81 and the valve cover 4 to move upward, and then the rectangular plate 6 is separated from the fixing port 5, so that the valve cover 4 can be removed. Through the above steps, the valve cover 4 can be easily removed from the valve body 1, and the operation is simple, without the aid of any disassembly tools, which provides great convenience to the user.

[0038] All components in the present invention are universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods. At the same time, standard parts used in the present application documents can be purchased from the market, and each component in the present application document can be customized according to the description in the specification and drawings. The specific connection method of each component adopts conventional means such as mature bolts, rivets, welding, etc. in the prior art, and machinery, parts and equipment adopt conventional models in the prior art.

[0039] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and appropriate controllers and encoders should be selected according to actual conditions to meet the control requirements. The specific connection and control sequence should refer to the working principle, and the electrical connection between the electrical components should be completed in the order of working in sequence. The detailed connection means are well-known technologies in this field. The utility model mainly introduces the working principle and process, and no longer explains the electrical control.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flexible stop check valve, characterized in that: include: Valve body (1); A threaded connector (2), wherein both left and right sides of the valve body (1) are fixedly connected with the threaded connector (2); A live joint (3), wherein the side of the threaded connector (2) away from the valve body (1) is threadedly connected with the live joint (3); A valve cover (4), the top of the valve body (1) being movably connected to the valve cover (4); A fixing opening (5), wherein the top of the valve cover (4) is provided with a fixing opening (5) on both left and right sides; A rectangular plate (6), the valve cover (4) is movably clamped with the rectangular plate (6), the bottom of the rectangular plate (6) is fixedly connected to the top of the valve body (1), and the top of the rectangular plate (6) passes through the fixing port (5) and extends to the outside of the fixing port (5); A plug-in slot (7), wherein the two rectangular plates (6) are each provided with a plug-in slot (7) on one side close to each other; The mounting mechanism (8) is provided at the top of the valve cover (4), and the mounting mechanism (8) comprises a concave block (81), a connecting column (82), a movable plate (83), a guide opening (84), a plug-in block (85) and a limit spring (87). The concave block (81) is fixedly mounted at the middle of the top end of the valve cover (4). The left and right sides of the inner wall of the concave block (81) are fixedly connected by a connecting column (82). The left and right sides of the surface of the connecting column (82) are slidably connected with the movable plate (83). The left and right sides of the concave block (81) are provided with a guide opening (84) below the left and right sides. The plug-in blocks (85) are fixedly connected below the sides of the two movable plates (83) away from each other. The side of the plug-in block (85) away from the movable plate (83) passes through the guide opening (84) and the plug-in slot (7) in sequence and extends to the inside of the plug-in slot (7). The limit spring (87) is sleeved at the center of the surface of the connecting column (82).

2. A flexible stop check valve according to claim 1, characterized in that: The surface of the movable plate (83) is in movable contact with the inner wall of the concave block (81).

3. A flexible stop check valve according to claim 1, characterized in that: The plug-in block (85) is movably connected to the plug-in slot (7).

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