Anti-loosening check valve connecting structure

Abstract

The utility model relates to the technical field of check valves, and provides an anti-loosening check valve connecting structure which comprises a check valve body, a water inlet pipe, an input end integrally and fixedly connected to the check valve body, a water drainage pipe and an output end with one side fixedly connected to the check valve body. When the check valve body passes through the flange mechanism, a flange of an external equipment connecting pipe is aligned with the flange disc, bolts are inserted into the multiple fixing holes, and the purpose that the check valve body is fixedly connected with the pipeline flange is achieved; when the check valve body passes through the hooping mechanism, the hoop is taken off from the interior of the clamping groove, then one end of a hose or a cloth bag pipe is arranged on the fixing pipe in a sleeving mode and located at the position of the clamping groove, and the hose or the cloth bag pipe can be fixed through the hooping mechanism. And the hoop is clamped at the position, located in the clamping groove, of the hose or the cloth bag pipe, so that the purpose of fixedly connecting the check valve body with the hose or the cloth bag pipe is achieved.

Description

Technical Field

[0001] This utility model relates to the field of check valve technology, specifically to a check valve connection structure that prevents loosening. Background Technology

[0002] A check valve is a type of valve whose opening and closing element is a circular valve disc that relies on its own weight and the pressure of the medium to prevent backflow. It belongs to the category of automatic valves and is also known as a non-return valve, one-way valve, reflux valve, or isolation valve. The valve disc movement is divided into lift type and swing type. The lift type check valve is structurally similar to a gate valve, except it lacks the valve stem that drives the valve disc. The medium enters from the inlet end. A swing type check valve has an angled valve disc that can rotate around an axis. Its working principle is similar to that of a lift type check valve. Check valves are often used as foot valves in pumping devices to prevent water backflow. Check valves, when used in combination with gate valves, can provide safety isolation. The disadvantages are high resistance and poor sealing when closed.

[0003] However, in implementing the relevant technology, the following problems were found in the existing technology: the existing check valve connection structure is relatively simple, with only one of flange or threaded connection, but it cannot achieve the combination of flange connection, threaded connection and clamp connection, resulting in low efficiency of check valve use. Therefore, an anti-loosening check valve connection structure is proposed. Utility Model Content

[0004] This utility model proposes an anti-loosening check valve connection structure, which solves the problem that the existing check valve connection structures in related technologies are relatively simple, only having one of the flange or threaded connections, but cannot achieve a combination of flange connection, threaded connection and clamp connection.

[0005] The technical solution of this utility model is as follows: a check valve connection structure to prevent loosening, comprising:

[0006] Check valve body;

[0007] The water inlet pipe is integrally and fixedly connected to the input end of the check valve body;

[0008] The drain pipe is fixedly connected to the output end of the check valve body on one side.

[0009] Two flange mechanisms are respectively located at the ends of the inlet pipe and the outlet pipe away from the check valve body;

[0010] Two threaded mechanisms are respectively installed at one end of the inlet pipe and the outlet pipe;

[0011] Two clamping mechanisms are respectively installed on the two threaded mechanisms.

[0012] Preferably, the two flange mechanisms include flanges respectively fixedly installed at the ends of the inlet pipe and the drain pipe away from the check valve body, with a circular array of multiple fixing holes opened through the flanges.

[0013] Preferably, the front end of the disc has a circular sealing groove, and a sealing ring is embedded inside the circular sealing groove.

[0014] Preferably, the two threaded mechanisms include fixed pipes respectively provided at one end of the water inlet pipe and the other at the end of the water outlet pipe, and external threads one and two external threads respectively opened at the ends of the fixed pipes.

[0015] Preferably, the inner walls of the inlet pipe and the outlet pipe are provided with internal threads, and the fixed pipe is threaded to the inlet pipe and the outlet pipe through external threads and internal threads respectively.

[0016] Preferably, the two clamping mechanisms include slots respectively formed on the outer walls of the inlet pipe and the outlet pipe, with clamps engaged inside the slots, and mounting ears fixedly installed on both ends of the clamps, with fixing threads passing through the inside of the mounting ears.

[0017] The working principle and beneficial effects of this utility model are as follows:

[0018] When using a flange mechanism, align the flange of the external equipment connection pipe with the flange plate, insert the bolts into the multiple fixing holes to achieve a fixed connection between the check valve body and the pipe flange. When using a threaded mechanism, connect one end of the fixing pipe to the inlet or outlet pipe via external thread two, and connect the other end to other equipment pipes via external thread one to achieve a fixed connection between the check valve body and the pipe. When using a clamping mechanism, remove the clamp from the inside of the clamping groove, then put one end of the hose or bag on the fixing pipe, located in the clamping groove position, and clamp the hose or bag in the clamping groove position. Manually use a wrench to rotate the fixing screw to fix the hose or bag, achieving a fixed connection between the check valve body and the hose or bag. This effectively connects and fixes the check valve body using multiple methods, thereby improving the efficiency of the check valve body. Attached Figure Description

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure proposed in this utility model;

[0021] Figure 2 This is a side view of the three-dimensional structure proposed in this utility model;

[0022] Figure 3 This utility model provides a cross-sectional perspective view of the check valve body.

[0023] Figure 4 This invention provides a cross-sectional three-dimensional structural diagram of the fixing tube.

[0024] In the diagram: 1. Check valve body; 2. Inlet pipe; 3. Drain pipe;

[0025] 4. Flange mechanism; 41. Flange; 42. Fixing hole; 43. Circular sealing groove; 44. Sealing ring;

[0026] 5. Threaded mechanism; 51. Fixed pipe; 52. External thread one; 53. External thread two; 54. Internal thread;

[0027] 6. Clamping mechanism; 61. Slot; 62. Clamp; 63. Mounting ear; 64. Fixing screw. Detailed Implementation

[0028] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0029] Example 1

[0030] Please see Figure 1 - Figure 4 A check valve connection structure for preventing loosening includes: a check valve body 1, an inlet pipe 2 integrally fixedly connected to the input end of the check valve body 1, a drain pipe 3 fixedly connected to the output end of the check valve body 1 on one side, two flange mechanisms 4 respectively located at the ends of the inlet pipe 2 and the drain pipe 3 away from the check valve body 1, two threaded mechanisms 5 respectively located at one end of the inlet pipe 2 and the drain pipe 3, and two clamping mechanisms 6 respectively located on the two threaded mechanisms 5.

[0031] This utility model provides a non-loosening check valve connection structure, which uses a flange mechanism 4 to fix the check valve body 1 to the pipe flange, a threaded mechanism 5 to fix the check valve body 1 to the pipe thread, and a clamping mechanism 6 to fix the check valve body 1 to the hose or bag tube.

[0032] Furthermore, the two flange mechanisms 4 include flanges 41 that are fixedly installed on the inlet pipe 2 and the drain pipe 3 at the ends away from the check valve body 1, respectively. A circular array passes through multiple fixing holes 42 opened on the flanges 41. A circular sealing groove 43 is opened at the front end of the flanges 41, and a sealing ring 44 is embedded inside the circular sealing groove 43.

[0033] Specifically, when using the flange mechanism 4, the flange of the external equipment connecting pipe is aligned with the flange plate 41, and the bolts are inserted into the interior of multiple fixing holes 42 to achieve the purpose of fixing the check valve body 1 to the pipeline flange.

[0034] Furthermore, the two threaded mechanisms 5 include fixed pipes 51 respectively provided at one end of the water inlet pipe 2 and the drain pipe 3, external threads 52 and 53 respectively provided at the ends of the fixed pipes 51, and internal threads 54 provided on the inner sidewalls of the water inlet pipe 2 and the drain pipe 3, and the fixed pipes 51 are threadedly connected to the water inlet pipe 2 and the drain pipe 3 respectively through external threads 53 and internal threads 54.

[0035] Specifically, when using the threaded mechanism 5, one end of the fixed pipe 51 is threaded to the water inlet pipe 2 or the drain pipe 3 through the external thread 2 53, and the other end is threaded to other equipment pipes through the external thread 1 52, so as to achieve the purpose of threaded fixed connection between the check valve body 1 and the pipe.

[0036] Furthermore, the two clamping mechanisms 6 include slots 61 respectively opened on the outer walls of the water inlet pipe 2 and the drain pipe 3. The slots 61 are fitted with clamps 62. Both ends of the clamps 62 are fixedly installed with mounting ears 63. The mounting ears 63 are perforated with fixing wires 64.

[0037] Specifically, when using the clamping mechanism 6, remove the clamp 62 from the inside of the slot 61, then put one end of the hose or bag tube onto the fixed tube 51, located in the slot 61, and clamp the clamp 62 into the position of the hose or bag tube in the slot 61. Manually use a wrench to rotate the fixing screw 64 to fix the hose or bag tube, so as to achieve the purpose of fixing the check valve body 1 to the hose or bag tube.

[0038] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A non-looseness check valve connection structure characterized by comprising: Include: Check valve body (1); Water inlet pipe (2), integral fixed connection in the input end of the check valve body (1); Drain pipe (3), one side fixed connection in the output end of the check valve body (1); Two flange mechanism (4) are respectively arranged in the water inlet pipe (2) and the drain pipe (3) away from the check valve body (1) one end; Two threaded mechanisms (5) are respectively arranged in the water inlet pipe (2) and the drain pipe (3) one end; Two hoop mechanism (6) are respectively arranged in two threaded mechanisms (5).

2. The anti-loosening check valve connection structure according to claim 1, characterized by: Two said flange mechanism (4) includes respectively fixedly installed in the water inlet pipe (2) and the drain pipe (3) away from the check valve body (1) one end of the disc (41), a plurality of fixed holes (42) are opened in the disc (41) in circular array.

3. A lockout check valve connection structure according to claim 2, wherein: The front end of the disc (41) is provided with a circular sealing groove (43), and the inside of the circular sealing groove (43) is embedded with a sealing ring (44).

4. The anti-loosening check valve connection structure according to claim 1, characterized by: Two said threaded mechanism (5) includes respectively arranged in the water inlet pipe (2) and the drain pipe (3) one end of the fixed pipe (51), the outer thread one (52) and the outer thread two (53) are opened in the end of the fixed pipe (51) respectively.

5. A lockout check valve connection structure according to claim 4, wherein: The inner side wall of the water inlet pipe (2) and the drain pipe (3) is provided with an internal thread (54), and the fixed pipe (51) is respectively screwed with the water inlet pipe (2) and the drain pipe (3) through the outer thread two (53) and the internal thread (54).

6. The anti-loosening check valve connection structure according to claim 1, characterized by: Two said hoop mechanism (6) includes respectively arranged in the water inlet pipe (2) and the drain pipe (3) outside wall of the clamping groove (61), the inside of the clamping groove (61) is clamped with the clamp (62), the both ends of the clamp (62) are fixedly installed with the mounting lug (63), and the inside of the mounting lug (63) is penetrated with the fixed wire (64).

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