Horizontal baffle check valve

Abstract

The utility model belongs to the technical field of check valves, and discloses a horizontal baffle check valve which comprises a baffle check valve body, a filter assembly is arranged in an inner cavity of the baffle check valve body, a pop-up structure is arranged in the filter assembly, the filter assembly comprises a connecting ring, and the connecting ring is connected with the baffle check valve body. The outer side of the connecting ring is movably connected with the inner wall of the baffle check valve body in a sleeved mode. The connecting ring and the filter screen plate are arranged, the connecting ring is buckled out of the inner cavity of the valve body through the clamping groove, and when the filter screen plate is moved out of the inner cavity of the valve body, the push rod and the movable block are driven to move upwards through the elastic force of the second spring, so that the filter screen plate is popped out of the inner cavity of the groove, and an operator can conveniently take the filter screen plate out of the groove; and meanwhile, the cleaned filter screen plate is pressed into the groove, and the filter screen plate is driven to reset by resetting the connecting ring, so that the filter screen plate is convenient to disassemble and assemble by an operator, and the cleaning efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of check valve technology, specifically a horizontal baffle check valve. Background Technology

[0002] A horizontal check valve, also known as a non-return valve, is used to prevent the backflow of media in a pipeline. It opens or closes automatically by the flow and force of the media. It is mainly used in pipelines where the media flows in one direction only, so as to prevent accidents.

[0003] In existing technologies, when using horizontal baffle check valves, water pipes are connected to both sides to allow the medium to flow normally. The pressure of the medium pushes the valve disc, allowing the medium to pass smoothly through the valve. Simultaneously, when backflow occurs, the pressure of the medium and the weight of the valve disc work together to quickly close the valve disc, preventing backflow. However, existing check valves typically have a filter screen installed inside the valve body to prevent impurities in the medium from adhering to the valve disc, thus avoiding jamming when the valve disc closes and failing to prevent backflow. After prolonged use, the filter screen needs to be removed to clean the adsorbed impurities, which is cumbersome and time-consuming. Therefore, improvements are needed. Utility Model Content

[0004] To address the problems mentioned in the background section, this utility model provides a horizontal baffle check valve.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a horizontal baffle check valve, comprising a baffle check valve body, wherein a filter assembly is provided in the inner cavity of the baffle check valve body, and a pop-out structure is provided inside the filter assembly;

[0006] The filter assembly includes a connecting ring, the outer side of which is movably sleeved with the inner wall of the baffle check valve body. The connecting ring has a groove inside, and a filter screen is installed inside the groove. A connecting block is installed on the outer side of the connecting ring, and a connecting rod is movably connected to the inner cavity of the connecting block. Both sides of the connecting rod are connected to the inner wall of the baffle check valve body. The connecting block is elastically connected to the baffle check valve body by a spring.

[0007] Preferably, the baffle check valve body includes a valve body, and a valve cover is provided on the top of the valve body, the valve cover being connected to the valve body by bolts.

[0008] Preferably, a pin is provided in the inner cavity of the valve body, and a valve disc is sleeved on the outer surface of the pin.

[0009] Preferably, a valve seat is provided on the inner wall of the valve body, and the size of the valve seat is adapted to the size of the valve disc.

[0010] Preferably, the filter screen has slots on both sides of its top, and the connecting ring has a slot on its inner side.

[0011] Preferably, the pop-out structure includes a movable block, the outer side of which is movably connected to the inner cavity of the connecting ring, and a push rod is provided on the top of the movable block, the top of which extends to below the filter screen.

[0012] Preferably, a second spring is provided on the top of the movable block, and the other end of the second spring is connected to the inner wall of the connecting ring.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This utility model is equipped with a connecting ring and a filter screen. The connecting ring is snapped out of the valve body cavity through a slot. When the filter screen is moved out of the valve body cavity, the spring force drives the push rod and the movable block to move upward, causing the filter screen to pop out of the groove cavity. This makes it easy for the operator to remove the filter screen from the groove for cleaning impurities. At the same time, after cleaning, the filter screen is pressed back into the groove. By resetting the connecting ring, the filter screen is reset, which makes it easy for the operator to disassemble and install the filter screen, thus improving the cleaning efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a front cross-sectional view of the present invention.

[0017] Figure 3 for Figure 2 A magnified schematic diagram of the partial structure at point A in the middle;

[0018] Figure 4 This is a cross-sectional view of the connecting ring of this utility model;

[0019] Figure 5 for Figure 4 A magnified schematic diagram of the structure at point B in the middle.

[0020] In the diagram: 1. Baffle check valve body; 101. Valve body; 102. Valve cover; 103. Pin; 104. Valve disc; 105. Valve seat; 2. Filter assembly; 201. Connecting ring; 202. Filter screen; 203. Groove; 204. Connecting rod; 205. Connecting block; 206. Spring 1; 3. Pop-up structure; 301. Movable block; 302. Push rod; 303. Spring 2. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1

[0023] like Figures 1 to 5 As shown, the first embodiment of the utility model provides a horizontal baffle check valve, including a baffle check valve body 1, a filter assembly 2 is provided in the inner cavity of the baffle check valve body 1, and a pop-out structure 3 is provided inside the filter assembly 2.

[0024] The filter assembly 2 includes a connecting ring 201, the outer side of which is movably sleeved with the inner wall of the baffle check valve body 1. The connecting ring 201 has a groove inside, and a filter screen 202 is installed inside the groove. A connecting block 205 is installed on the outer side of the connecting ring 201. A connecting rod 204 is movably connected to the inner cavity of the connecting block 205. Both sides of the connecting rod 204 are connected to the inner wall of the baffle check valve body 1. The connecting block 205 is elastically connected to the baffle check valve body 1 through a spring 206.

[0025] The design of the filter screen 202 protects the inlet of the baffle check valve body 1, filtering impurities in the medium and preventing them from getting stuck inside the baffle check valve body 1, thus preventing it from closing. When the connecting ring 201 is removed from the inner cavity of the baffle check valve body 1, the connecting ring 201 moves the connecting block 205 on the outer surface of the connecting rod 204. As the filter screen 202 moves out from the inside of the baffle check valve body 1, the pop-out structure 3 releases the filter screen 202 from... The filter screen 202 pops out from the groove for easy removal and replacement. After replacement, the spring 206 is stretched, which moves the connecting block 205 into the inner cavity of the baffle check valve body 1. The connecting block 205 moves the connecting ring 201, which limits the filter screen 202 through the inner wall of the baffle check valve body 1. This facilitates the installation and removal of the filter screen 202 by the operator, improving work efficiency and providing convenience for the operator.

[0026] Example 2

[0027] like Figure 2 As shown, this embodiment includes the features of embodiment 1. The distinguishing technical feature is that the baffle check valve body 1 includes a valve body 101, and a valve cover 102 is provided on the top of the valve body 101. The valve cover 102 is connected to the valve body 101 by bolts.

[0028] The valve body 101 and valve cover 102 enclose the internal structure of the check valve, preventing it from being damaged by external environmental corrosion and collisions, thus protecting the internal precision components and helping to extend the service life of the check valve. At the same time, when repairing the baffle check valve body 1, the bolts on the valve cover 102 can be removed to facilitate the operation of various components inside the valve, making it easier for staff to operate and improving the convenience and efficiency of maintenance.

[0029] Among them, a pin 103 is provided in the inner cavity of the valve body 101, and a valve disc 104 is sleeved on the outer surface of the pin 103;

[0030] The pin 103 provides a rotational support point for the valve disc 104, enabling the valve disc 104 to open and close around the pin 103. This ensures the stability and accuracy of the valve disc 104 during movement, guaranteeing that the valve disc 104 can flexibly respond to the flow state of the medium according to design requirements. At the same time, the valve disc 104 is used to realize unidirectional flow control. When the medium flows in the specified direction, the pressure of the medium will push the valve disc 104 to open, allowing the medium to pass through the valve smoothly. When the medium attempts to flow in the opposite direction, the valve disc 104 will quickly close under the action of the medium pressure and its own gravity, preventing the medium from flowing backward, thereby cutting off the reverse flow.

[0031] The valve body 101 has a valve seat 105 on its inner wall, and the size of the valve seat 105 is adapted to the size of the valve disc 104.

[0032] The valve seat 105 and valve disc 104 cooperate to form a seal. When the valve disc 104 is closed, it presses against the valve seat 105 to prevent backflow of the medium. The sealing surface quality of the valve seat 105 directly affects the sealing performance of the check valve, ensuring that the medium leakage can be effectively prevented under various working conditions.

[0033] Example 3

[0034] like Figure 2 and Figure 4 As shown, this embodiment includes the features of embodiment 1. The distinguishing technical feature is that the filter screen plate 202 has slots 203 on both sides of the top, and the connecting ring 201 has a slot on the inner side.

[0035] The groove increases the friction between the hand and the connecting ring 201, making it easier for the operator to remove the connecting ring 201 from the inner cavity of the valve body 101, thus facilitating the replacement of the filter screen 202. When the filter screen 202 is removed from the inner cavity of the valve body 101, the pop-out structure 3 pops the filter screen 202 out of the groove, and the slot 203 removes the filter screen 202, making it easier for the operator to clean the impurities filtered on the filter screen 202 and avoid affecting the use of the valve.

[0036] The pop-out structure 3 includes a movable block 301, the outer side of which is movably connected to the inner cavity of the connecting ring 201, and a push rod 302 is provided on the top of the movable block 301, with the top of the push rod 302 extending to the bottom of the filter screen 202.

[0037] The push rod 302 is limited by the detachable block 301 to prevent it from shifting position when it moves.

[0038] Among them, the top of the movable block 301 is provided with a second spring 303, and the other end of the second spring 303 is connected to the inner wall of the connecting ring 201;

[0039] At this time, since the second spring 303 is in a stretched state, it will drive the movable block 301 and the push rod 302 to move upward. The push rod 302 will push the filter screen 202 out of the groove, making it easier for the operator to remove the filter screen 202 from the inside of the connecting ring 201. This facilitates the subsequent cleaning of impurities on the filter screen 202 and brings convenience to the operator.

[0040] Working principle and usage process of this utility model:

[0041] First, when the operator is cleaning impurities from the filter screen 202, the connection between the baffle check valve body 1 and the pipeline is disconnected. Then, the connecting ring 201 is pulled out of the valve body 101 via the slot. The connecting ring 201 drives the connecting block 205 to move on the outer surface of the connecting rod 204. When the filter screen 202 on the connecting ring 201 moves out of the valve body 101, the spring force of the second spring 303 drives the movable block 301 and the push rod 302 upwards, pushing the filter screen 202 out of the groove. The filter screen 202 is then pulled out of the groove through the slot 203 for cleaning. The impurities on the filter screen 202 are removed, and the cleaned filter screen 202 is then repositioned into the groove. The filter screen 202 and push rod 302 are reset by pressing, and the connecting ring 201 is reset into the inner cavity of the valve body 101 by the elastic force of spring 206. This allows the top of the filter screen 202 to be pressed against the inner wall of the valve body 101, preventing it from shifting position. This makes it easier for operators to clean the impurities on the filter screen 202, avoiding any impact on the normal use of the baffle check valve body 1. It also improves the efficiency of disassembling and assembling the filter screen 202, bringing convenience to the operator.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A horizontal baffle check valve, comprising a baffle check valve body (1), characterized in that: The inner cavity of the baffle check valve body (1) is provided with a filter assembly (2), and the filter assembly (2) is provided with a pop-out structure (3). The filter assembly (2) includes a connecting ring (201), the outer side of which is movably sleeved with the inner wall of the baffle check valve body (1), the inner side of which has a groove, and the inner side of which is provided with a filter screen plate (202), the outer side of which has a connecting block (205), the inner cavity of which is movably connected with a connecting rod (204), the two sides of which are connected to the inner wall of the baffle check valve body (1), and the connecting block (205) is elastically connected to the baffle check valve body (1) by a spring (206).

2. A horizontal baffle check valve according to claim 1, characterized in that: The baffle check valve body (1) includes a valve body (101), and a valve cover (102) is provided on the top of the valve body (101). The valve cover (102) is connected to the valve body (101) by bolts.

3. A horizontal baffle check valve according to claim 2, characterized in that: The valve body (101) has a pin (103) inside, and a valve disc (104) is sleeved on the outer surface of the pin (103).

4. A horizontal baffle check valve according to claim 3, characterized in that: The valve body (101) has a valve seat (105) on its inner wall, and the size of the valve seat (105) is adapted to the size of the valve disc (104).

5. A horizontal baffle check valve according to claim 1, characterized in that: The filter screen (202) has slots (203) on both sides of its top, and the connecting ring (201) has a slot on its inner side.

6. A horizontal baffle check valve according to claim 1, characterized in that: The pop-out structure (3) includes a movable block (301), the outer side of which is movably connected to the inner cavity of the connecting ring (201), and a push rod (302) is provided on the top of the movable block (301), the top of which extends to below the filter screen (202).

7. A horizontal baffle check valve according to claim 6, characterized in that: The top of the movable block (301) is provided with a second spring (303), and the other end of the second spring (303) is connected to the inner wall of the connecting ring (201).

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