Spherical sealing check valve

Abstract

The utility model relates to the technical field of valves, in particular to a spherical sealing check valve which comprises a valve body shell, a hollow groove is formed in the valve body shell, an adjusting rotary disc matched with the hollow groove is rotatably installed in an inner cavity of the hollow groove, an installation groove is formed in the adjusting rotary disc, and a medium through hole is communicated with an inner cavity of the end of the installation groove. A valve element sliding cavity is formed in the middle of the mounting groove, and a sealing valve element for controlling one-way flowing of a medium is slidably mounted in an inner cavity of the valve element sliding cavity; the valve has the beneficial effects that the hollow groove is formed in the middle of the valve body shell, the adjusting rotary disc matched with the hollow groove is rotationally installed in the inner cavity of the hollow groove, the communicating state of the medium through hole and the medium flow channel can be changed by rotating the adjusting rotary disc, and after the adjusting rotary disc rotates by 180 degrees, the one-way flowing direction of an internal medium is changed; therefore, the sealing device can adapt to media in different flow directions without disassembly and reassembly, and sealing damage caused in the disassembly and assembly process is avoided.

Description

Technical Field

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

[0002] A check valve is an automatic valve used to prevent reverse flow of fluid in a piping system. It opens when the medium flows in the forward direction and closes when it flows in the reverse direction, achieving one-way flow control.

[0003] In the prior art, the main components of the check valve are the valve body and the one-way valve core. The one-way valve core is reset by a spring or gravity. When the medium flows in the forward direction, the valve core compresses the spring or offsets the gravity. When the medium flows in the reverse direction, the valve core is reset by elastic force or gravity.

[0004] However, at present, when installing the check valve, attention must be paid to the flow direction of the media at both ends. When the check valve is installed in reverse due to factors such as insufficient experience of the staff, it can only be disassembled and reinstalled, which is not only laborious, but also easily causes damage to the seal at the connection, affecting the sealing performance of the check valve. To this end, the utility model proposes a spherical sealing check valve to solve the above problem. Utility Model Content

[0005] The purpose of the utility model is to provide a spherical sealing check valve to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a spherical sealing check valve, the spherical sealing check valve comprising:

[0007] A valve body shell, wherein a hollow groove is provided inside the valve body shell, an adjusting dial adapted thereto is rotatably installed in the inner cavity of the hollow groove, an installing groove is provided inside the adjusting dial, medium through holes are provided at the upper and lower ends of both sides of the adjusting dial, and the medium through holes are connected with the inner cavity at the end of the installing groove, a valve core sliding cavity is provided in the middle of the installing groove, and a sealing valve core for controlling the unidirectional flow of the medium is slidably installed in the inner cavity of the valve core sliding cavity.

[0008] Preferably, the adjusting dial is configured to be in a disc shape, and a sealing gasket is provided between the side surface of the adjusting dial and the inner wall of the hollow groove.

[0009] Preferably, a return spring is installed in the inner cavity at one end of the installation groove, and one end of the return spring extends to the inner cavity of the valve core sliding cavity and abuts against the surface of the sealing valve core.

[0010] Preferably, the valve body shell is configured as a spherical structure, two medium flow channels are opened inside the valve body shell, and the two medium flow channels are centrally symmetrically distributed around the spherical center of the valve body shell, and the two medium flow channels are connected to the inner cavity of the hollow groove from both sides of the hollow groove.

[0011] Preferably, two connecting screw sleeves are fixedly connected to the surface of the valve body shell, and the two connecting screw sleeves are respectively located outside the opening ends of the two medium flow channels.

[0012] Preferably, a one-way flow channel is opened inside the adjusting dial, and the two ends of the one-way flow channel are respectively connected to the end inner cavity of the installation groove and the end inner cavity of the valve core sliding cavity, and one end of the one-way flow channel corresponds to the reset spring, and the other end of the one-way flow channel is far away from the reset spring.

[0013] Preferably, the surface of the adjusting dial is provided with two directional marks, and the directions of the two directional marks are opposite, and the surface of the valve body shell is provided with a window opening, and the window opening corresponds to one directional mark.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model has a hollow groove in the middle of the valve body shell, and an adjusting dial matched with the hollow groove is rotatably installed in the inner cavity of the hollow groove, and medium through holes are opened at the upper and lower ends of the two side surfaces of the adjusting dial, and the two medium through holes located at the diagonal positions are respectively connected to two medium flow channels, and a sealing valve core for controlling the unidirectional flow of the medium is arranged inside the adjusting dial. The device can change the connection state between the medium through hole and the medium flow channel by rotating the adjusting dial, and change the unidirectional flow direction of the internal medium after the adjusting dial is rotated one hundred and eighty degrees, so that it can adapt to media with different flow directions without disassembly and reassembly, and avoid damage to the seal during the disassembly and assembly process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a three-dimensional half-section schematic diagram of the overall structure of the utility model;

[0018] Figure 3 It is a three-dimensional half-section schematic diagram of the valve body shell structure of the utility model;

[0019] Figure 4 It is a three-dimensional side sectional schematic diagram of the adjusting turntable structure of the utility model.

[0020] In the figure: 1. Valve body shell; 2. Hollow groove; 3. Medium flow channel; 4. Adjustment dial; 5. Installation groove; 6. Medium through hole; 7. Valve core sliding cavity; 8. Sealing valve core; 9. Return spring; 10. One-way flow channel; 11. Direction mark; 12. Window opening; 13. Connecting screw sleeve. DETAILED DESCRIPTION

[0021] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of 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.

[0022] For example, see Figure 1-Figure 4 The utility model provides a technical solution: a spherical sealing check valve, comprising: a valve body shell 1 arranged in a spherical structure.

[0023] Specifically, a hollow groove 2 is provided inside the valve body shell 1, and an adjusting dial 4 adapted thereto is rotatably installed in the inner cavity of the hollow groove 2. The adjusting dial 4 is set in a disc shape, and a sealing gasket is provided between the side of the adjusting dial 4 and the inner wall of the hollow groove 2, such as Figure 2 , Figure 3 and Figure 4 As shown, the adjusting turntable 4 can rotate in the inner cavity of the hollow groove 2, and during the rotation process, the side of the adjusting turntable 4 always maintains a sealed state with the hollow groove 2;

[0024] Secondly, a mounting groove 5 is provided inside the adjusting dial 4, and medium through holes 6 are provided at both upper and lower ends of both sides of the adjusting dial 4, and the medium through holes 6 are connected to the inner cavity at the end of the mounting groove 5, and two medium flow channels 3 are provided inside the valve body shell 1, and the two medium flow channels 3 are centrally symmetrically distributed around the center of the sphere of the valve body shell 1, and the two medium flow channels 3 are connected to the inner cavity of the hollow groove 2 from both sides of the hollow groove 2, such as Figure 2 As shown, the medium in the inner cavity of the medium flow channel 3 can enter the inner cavity of the installation groove 5 after passing through the medium through hole 6, and then enter the inner cavity of another medium flow channel 3 to form a complete flow path. However, a valve core sliding cavity 7 is opened in the middle of the installation groove 5, and a sealing valve core 8 for controlling the unidirectional flow of the medium is slidably installed in the inner cavity of the valve core sliding cavity 7, as shown in FIG. Figure 2 As shown, the sealing valve core 8 separates the inner cavities at both ends of the installation groove 5, so that the medium between the two medium flow channels 3 cannot be connected only through the installation groove 5. A one-way flow channel 10 is also opened inside the adjusting turntable 4. The two ends of the one-way flow channel 10 are respectively connected to the end inner cavity of the installation groove 5 and the end inner cavity of the valve core sliding cavity 7. Figure 4 and Figure 2As shown, when the medium in the inner cavity of the installation groove 5 pushes the sealing valve core 8 to slide and exposes the open end of the one-way flow channel 10, the medium between the two medium flow channels 3 can be kept connected through the one-way flow channel 10, and when the medium pushes the sealing valve core 8 to slide so that one end of the one-way flow channel 10 is closed, the medium cannot flow, which ensures that the medium between the two medium flow channels 3 of the device can only maintain one-way flow;

[0025] In order to reset the sealing valve core 8, the present application also has a reset spring 9 installed in the inner cavity at one end of the installation groove 5, one end of the reset spring 9 extends to the inner cavity of the valve core sliding cavity 7 and rests on the surface of the sealing valve core 8, one end of the one-way flow channel 10 corresponds to the reset spring 9, and the other end of the one-way flow channel 10 is away from the reset spring 9. The setting of the reset spring 9 is used to reset the sliding of the sealing valve core 8 to avoid reverse flow of the medium.

[0026] In order to install the device, the present application also has two connecting screw sleeves 13 fixedly connected to the surface of the valve body shell 1, and the two connecting screw sleeves 13 are respectively located outside the opening ends of the two medium flow channels 3. The connecting screw sleeves 13 are used to connect the valve body shell 1 with the external pipeline, and the connection between the valve body shell 1 and the external pipeline needs to be sealed to avoid medium leakage.

[0027] In order to adjust the flow direction of the medium, the present application also has two directional marks 11 on the surface of the adjusting dial 4, and the directions of the two directional marks 11 are opposite. A window opening 12 is provided on the surface of the valve body shell 1, and the window opening 12 corresponds to a directional mark 11. The staff can observe the indicated direction of the directional mark 11 at the current position through the window opening 12, so as to know the flow direction of the medium between the two connecting screw sleeves 13. When the device is installed in the wrong direction due to lack of experience of the staff or other factors, there is no need to disassemble and reinstall it. The adjusting dial 4 can be pushed to rotate at the position of the window opening 12. After rotating the adjusting dial 4 one hundred and eighty degrees, the unidirectional flow direction of the medium can be changed.

[0028] 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 spherical sealing check valve, characterized in that: The ball sealing check valve comprises: A valve body shell (1), wherein a hollow groove (2) is provided inside the valve body shell (1), an adjusting dial (4) adapted thereto is rotatably mounted in the inner cavity of the hollow groove (2), an installation groove (5) is provided inside the adjusting dial (4), medium through holes (6) are provided at both upper and lower ends of both sides of the adjusting dial (4), and the medium through holes (6) are connected to the inner cavity of the end of the installation groove (5), a valve core sliding cavity (7) is provided in the middle of the installation groove (5), and a sealing valve core (8) for controlling the unidirectional flow of the medium is slidably mounted in the inner cavity of the valve core sliding cavity (7).

2. A spherical sealing check valve according to claim 1, characterized in that: The adjusting turntable (4) is configured in a disc shape, and a sealing gasket is provided between the side surface of the adjusting turntable (4) and the inner wall of the hollow groove (2).

3. A spherical sealing check valve according to claim 1, characterized in that: A return spring (9) is installed in the inner cavity at one end of the installation groove (5), and one end of the return spring (9) extends to the inner cavity of the valve core sliding cavity (7) and abuts against the surface of the sealing valve core (8).

4. A spherical sealing check valve according to claim 1, characterized in that: The valve body shell (1) is configured as a spherical structure, and two medium flow channels (3) are provided inside the valve body shell (1), and the two medium flow channels (3) are centrally symmetrically distributed around the spherical center of the valve body shell (1), and the two medium flow channels (3) are connected to the inner cavity of the hollow groove (2) from both sides of the hollow groove (2).

5. A spherical sealing check valve according to claim 4, characterized in that: Two connecting screw sleeves (13) are fixedly connected to the surface of the valve body shell (1), and the two connecting screw sleeves (13) are respectively located outside the opening ends of the two medium flow channels (3).

6. A spherical sealing check valve according to claim 1, characterized in that: A one-way flow channel (10) is provided inside the adjusting turntable (4), and the two ends of the one-way flow channel (10) are respectively connected to the end inner cavity of the mounting groove (5) and the end inner cavity of the valve core sliding cavity (7), and one end of the one-way flow channel (10) corresponds to the reset spring (9), and the other end of the one-way flow channel (10) is away from the reset spring (9).

7. A spherical sealing check valve according to claim 1, characterized in that: The surface of the adjusting dial (4) is provided with two directional marks (11), and the directions of the two directional marks (11) are opposite. The surface of the valve body shell (1) is provided with a window opening (12), and the window opening (12) corresponds to one directional mark (11).

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