Check valve with protection effect

Abstract

The utility model discloses a check valve with a protection effect, which belongs to the field of check valves and comprises a protection box fixedly arranged at one end of a check valve body and a filter component mounted in the protection box, and a cleaning mechanism is arranged in the protection box. The cleaning mechanism comprises a first servo motor installed on the front face of the protection box and two sets of main shafts and auxiliary shafts which are arranged in the protection box at equal intervals, the two sets of main shafts are connected through a transmission belt, and the output end of the first servo motor is connected with the main shaft close to one end of the check valve body; the filter plates move upwards to the designated position to continue filtering work, the first servo motor drives the main shaft of the filter plate located on the lower portion to rotate, a transmission belt is driven to be matched with a brush to conduct rolling brushing operation on a filter screen on the filter plates, impurities accumulated on the filter screen are cleaned, workers do not need to take down the filter screen for cleaning, and the working efficiency is improved. The situation that the sealing performance becomes poor due to frequent disassembly and assembly of the filter screen is avoided, and meanwhile the working intensity of workers is relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of check valves, in particular to a check valve with a protection effect. Background Technique

[0002] A check valve refers to a valve whose closing member is a circular valve core and which blocks the reverse flow of the medium by its own weight and the pressure of the medium.

[0003] It is found that a Chinese utility model patent with the publication number of CN220365963U discloses a check valve with an effect of protecting the valve core, including a valve body and a water inlet pipe arranged at the left end of the valve body. A protection box is arranged at the outer end of the water inlet pipe. A mounting plate is fixedly connected to the inner top end of the protection box. A rotating shaft is fixedly connected to the surface of the mounting plate. A gear is rotatably connected to the outer end of the rotating shaft. The left and right ends of the gear are respectively meshed with a first rack and a second rack. Filter meshes are arranged on both the first rack and the second rack. A pair of through holes are arranged at the upper end of the water inlet pipe. It can be realized that by installing a protection box and a pair of filter meshes at the outer end of the valve body and the water inlet pipe, when one filter mesh is blocked, it can be immediately replaced with the other filter mesh, greatly reducing the operation difficulty of personnel replacing the filter mesh, improving the replacement efficiency, reducing the duration for which the valve body needs to be closed, and minimizing the impact of water cut-off on the daily life of users.

[0004] This solution uses two groups of filter meshes for replacement to reduce the filtering intensity of a single filter mesh. However, when replacing the filter mesh, it is necessary to frequently disassemble and install the filter mesh from the first rack and the second rack, which affects the sealing performance of the filter mesh and also increases the working intensity of the staff.

[0005] Therefore, the utility model provides a check valve with a protection effect to solve the above problems. Content of the Utility Model

[0006] (1) Technical Problems to be Solved

[0007] The utility model provides a check valve with a protection effect, aiming to solve the existing problems proposed in the background technique.

[0008] (2) Technical Solutions

[0009] To achieve the above object, the utility model provides the following technical solution: A check valve with a protection effect, including a protection box fixedly arranged at one end of the check valve body and a filtering component installed inside the protection box;

[0010] A cleaning mechanism is arranged inside the protection box;

[0011] The cleaning mechanism includes a first servo motor installed on the front of the protective box, and two groups of main shafts and auxiliary shafts arranged at equal intervals inside the protective box. The two groups of main shafts are connected by a transmission belt. The output end of the first servo motor is connected to the main shaft near one end of the check valve body. The main shaft and the auxiliary shaft are sleeved with a transmission belt sleeve, and brush hairs are arranged at equal intervals on the outer surface of the transmission belt.

[0012] Among them, the filtering component includes a filter screen detachably installed inside the filter plate. A plate groove is formed inside the protective box, a sealing block is installed at the lower end of the plate groove, and the filter plate is slidably connected to the plate groove.

[0013] Preferably, a second servo motor is installed on the back of the protective box. A connecting rod is installed at the output end of the second servo motor, a gear is installed at the tail end of the connecting rod, a rectangular plate is installed at the lower end of the filter plate, a limiting groove is formed in the rectangular plate, and teeth are installed on one side of the rectangular plate close to the gear.

[0014] Preferably, cone blocks are installed at the four corners of the filter plate, and the cone blocks are adapted to the sealing blocks.

[0015] Preferably, a sewage discharge pipe is installed at the lower end inside the protective box. A support plate is arranged at the upper end of the sewage discharge pipe, a support frame is installed at the upper end of the support plate, and limiting plates are symmetrically arranged on one side of the support frame close to the rectangular plate.

[0016] Preferably, the limiting plates are movably connected to the limiting grooves formed in the rectangular plate, and the support frame is sleeved with the connecting rod at the output end of the second servo motor.

[0017] (III) Beneficial effects

[0018] By arranging a protective box and installing a cleaning mechanism inside the protective box, the check valve, in cooperation with the filtering component, has two groups of filter plates horizontally aligned with two groups of plate grooves formed inside the protective box, and the two groups of filter plates sequentially provide filtering for the liquid discharge path. When the filter screen on the surface of the filter plate needs to be cleaned, the second servo motor drives the gear to rotate, so that the filter plate located in the plate groove moves downward, and the other group of filter plates moves upward to a designated position to continue the filtering work. The filter plate located below is driven by the first servo motor to rotate the main shaft, driving the transmission belt to cooperate with the brush hairs to perform a rolling brush operation on the filter screen on the filter plate, cleaning the impurities accumulated on the filter screen. There is no need for the staff to remove the filter screen for cleaning, avoiding the deterioration of the sealing performance caused by frequent disassembly and assembly of the filter screen, and at the same time reducing the work intensity of the staff. Brief description of the drawings

[0019] Figure 1 It is a schematic diagram of the overall structure of a check valve with a protective effect;

[0020] Figure 2 It is a schematic diagram of the cleaning mechanism;

[0021] Figure 3 It is a schematic diagram of the support frame structure;

[0022] Figure 4 It is a schematic diagram of the cross-sectional structure of a part of the protective box.

[0023] In the figure:

[0024] 1. Check valve body;

[0025] 2. Protective box;

[0026] 21. Plate groove; 22. Sealing block;

[0027] 3. Filter assembly;

[0028] 31. Filter plate; 32. Cone block; 33. Rectangular plate; 34. Limiting groove;

[0029] 4. Cleaning mechanism;

[0030] 41. Transmission belt; 42. Main shaft; 43. Sub-shaft; 44. Filter screen; 45. Brush; 46. First servo motor;

[0031] 5. Support plate;

[0032] 51. Support frame; 52. Limiting plate;

[0033] 6. Sewage pipe;

[0034] 7. Second servo motor. Specific implementation manners

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0036] The present invention provides a check valve with a protective effect, as Figures 1-4 shown. The check valve includes a protective box 2 fixedly arranged at one end of the check valve body 1 and a filter assembly 3 installed inside the protective box 2;

[0037] A cleaning mechanism 4 is arranged inside the protective box 2;

[0038] The cleaning mechanism 4 includes a first servo motor 46 installed on the front of the protection box 2, and two groups of main shafts 42 and auxiliary shafts 43 arranged equidistantly inside the protection box 2. The two groups of main shafts 42 are connected by a transmission belt. The output end of the first servo motor 46 is connected to the main shaft 42 near one end of the check valve body 1. The main shaft 42 and the auxiliary shaft 43 are sleeved by a transmission belt 41, and brush hairs 45 are arranged equidistantly on the outer surface of the transmission belt 41.

[0039] Specifically, the first servo motor 46 is installed on the outside of the protection box 2 through a stainless steel support plate, and the output end of the first servo motor 46 is connected to the main shaft 42 near one end of the check valve body 1 inside the protection box 2. There are two groups of such main shafts 42, and the two groups of main shafts 42 are connected by a transmission belt. At the same time, the transmission belt 41 is sleeved outside the main shaft 42 and the auxiliary shaft 43. When the first servo motor 46 is started, it drives the transmission belt 41 to circulate along the main shaft 42, and relies on the brush hairs 45 to provide wiping for the filter screen 44 on the filter plate 31, wiping off the impurities accumulated on the filter screen 44. The two groups of cleaning mechanisms 4 arranged equidistantly are both located on the front side of the filter plate 31. This front side is mainly the side where the filter screen 44 filters the liquid. The brush hairs 45 are made of soft roots and will not be damaged when contacting the rectangular plate 33. The structural parts of this device are all electroplated, so that a waterproof coating is covered on their surfaces to provide protection for the gears and teeth.

[0040] Among them, the filter assembly 3 includes a filter screen 44 detachably installed inside the filter plate 31. A plate groove 21 is opened inside the protection box 2, and a sealing block 22 is installed at the lower end of the plate groove 21. The filter plate 31 is slidably connected to the plate groove 21. Cone blocks 32 are installed at the four corners of the filter plate 31, and the cone blocks 32 are adapted to the sealing blocks 22.

[0041] Furthermore, the filter screen 44 is a filter element that filters the liquid, and this filter element is made of a hard material and will not be worn due to the wiping of the brush hairs 45. The plate groove 21 opened in the protection box 2 is adapted to the filter plate 31, and cone blocks 32 are respectively installed at the four corners of the filter plate 31. When the filter plate 31 moves up and down, it will cooperate with the sealing block 22 to form a seal. Even when one group of filter plates 31 is being cleaned, the other group of filter plates 31 can filter without being affected.

[0042] A second servo motor 7 is installed on the back of the protection box 2. A connecting rod is installed at the output end of the second servo motor 7. A gear is installed at the end of the connecting rod. A rectangular plate 33 is installed at the lower end of the filter plate 31. A limiting groove 34 is formed at the rectangular plate 33. Teeth are installed on one side of the rectangular plate 33 close to the gear. A sewage discharge pipe 6 is installed at the lower end inside the protection box 2. A support plate 5 is arranged at the upper end of the sewage discharge pipe 6. A support frame 51 is installed at the upper end of the support plate 5. Limiting plates 52 are symmetrically arranged on one side of the support frame 51 close to the rectangular plate 33. The limiting plates 52 are movably connected with the limiting grooves 34 formed at the rectangular plate 33. The support frame 51 is sleeved on the connecting rod at the output end of the second servo motor 7;

[0043] It should be noted that, compared with the comparative scheme, this lifting device uses the limiting groove 34 formed at the rectangular plate 33 and cooperates with the limiting plates 52 on the support frame 51. When the rectangular plate 33 moves up and down, the limiting plates 52 provide limitation for the rectangular plate 33 to prevent the filter plate 31 from shaking during the up and down movement and affecting the sealing performance during the later reset. The connecting rod at the output end of the second servo motor 7 is movably inserted through the support frame 51. When the second servo motor 7 is started, the gear drives the rectangular plate 33 to move up and down. The sewage discharge pipe 6 installed below the protection box 2 is sealed by a spiral connection with a cover body. The cover body can be opened during the brushing process to accelerate air drying.

[0044] During use, a cleaning mechanism 4 is installed inside the protection box 2. This device cooperates with the filtering assembly 3. The two filter plates 31 are horizontally aligned with the two plate grooves 21 formed inside the protection box 2. And the two filter plates 31 filter the liquid discharge path in sequence. When the filter screen 44 on the surface of the filter plate 31 needs to be cleaned, first close the check valve body 1, and then drive the gear to rotate by the second servo motor 7, so that the filter plate 31 located at the plate groove 21 moves downward, and the other filter plate 31 moves upward to a specified position to continue the filtering work. The filter plate 31 located below drives the main shaft 42 to rotate by the first servo motor 46, drives the transmission belt 41 to cooperate with the brush 45 to perform a rolling brush operation on the filter screen 44 on the filter plate 31, and cleans the impurities accumulated on the filter screen 44. During cleaning, open the cover body below the sewage discharge pipe 6, ventilate the inside of the protection box 2, accelerate the air drying of the moisture on the surface of the filter screen 44, prevent the moisture on its surface from remaining inside the protection box 2, eliminate the need for staff to remove the filter screen 44 for cleaning, avoid frequent disassembly and assembly of the filter screen 44 resulting in poor sealing performance, and at the same time reduce the work intensity of the staff.

[0045] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent replacements or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A check valve with a protective effect, comprising a protective box (2) fixedly arranged at one end of the check valve body (1) and a filtering component (3) installed inside the protective box (2); It is characterized in that: A cleaning mechanism (4) is arranged inside the protective box (2); The cleaning mechanism (4) includes a first servo motor (46) installed on the front of the protective box (2) and two groups of main shafts (42) and auxiliary shafts (43) equidistantly arranged inside the protective box (2). The two groups of main shafts (42) are connected by a transmission belt. The output end of the first servo motor (46) is connected to the main shaft (42) close to one end of the check valve body (1). The main shaft (42) and the auxiliary shaft (43) are sleeved by a transmission belt (41), and brush hairs (45) are equidistantly arranged on the outer surface of the transmission belt (41); Among them, the filtering component (3) includes a filter screen (44) detachably installed inside the filter plate (31). A plate groove (21) is opened inside the protective box (2). A sealing block (22) is installed at the lower end of the plate groove (21). The filter plate (31) is slidably connected to the plate groove (21).

2. The check valve with a protective effect according to claim 1, characterized in that: A second servo motor (7) is installed on the back of the protective box (2). A connecting rod is installed at the output end of the second servo motor (7). A gear is installed at the tail end of the connecting rod. A rectangular plate (33) is installed at the lower end of the filter plate (31). A limiting groove (34) is opened at the rectangular plate (33). Teeth are installed on one side of the rectangular plate (33) close to the gear.

3. The check valve with a protective effect according to claim 2, characterized in that: Conical blocks (32) are installed at the four corners of the filter plate (31). The conical blocks (32) are adapted to the sealing blocks (22).

4. The check valve with a protective effect according to claim 3, characterized in that: A sewage discharge pipe (6) is installed at the lower end inside the protective box (2). A support plate (5) is arranged at the upper end of the sewage discharge pipe (6). A support frame (51) is installed at the upper end of the support plate (5). Limiting plates (52) are symmetrically arranged on one side of the support frame (51) close to the rectangular plate (33).

5. The check valve with a protective effect according to claim 4, characterized in that: The limiting plates (52) are movably connected to the limiting grooves (34) opened at the rectangular plate (33). The support frame (51) is sleeved on the connecting rod at the output end of the second servo motor (7).

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