Anti-scaling lifting type plug valve

Abstract

The utility model relates to the technical field of plug valves, and discloses an anti-scaling lifting type plug valve which comprises a valve body, a liquid inlet pipe is fixed to the left side of the valve body, a filter screen is fixed to the inner wall of the liquid inlet pipe, a collecting box is fixed to the bottom of the liquid inlet pipe, and a cleaning mechanism for cleaning the filter screen is arranged on the filter screen. A beating mechanism is arranged on the cleaning mechanism, the cleaning mechanism comprises a rotating shaft, the rotating shaft is rotationally installed on the side wall of the filter screen, and an impeller is fixed to the end point of the rotating shaft; and the moving block is mounted on the inner wall of the rotating shaft in a sliding manner. According to the anti-scaling lifting type plug valve, by arranging the cleaning mechanism, when water flow enters the liquid inlet pipe, a brush can automatically rotate to be attached to the filter screen for rotary cleaning, and the brush is attached to the surface of the filter screen for rotation, so that the brush can comprehensively clean meshes of the filter screen; and operation of workers is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of plug valves, in particular to an anti-scaling lifting type plug valve. Background Art

[0002] The plug valve is a rotary valve in the shape of a closing piece or a plunger. It is a valve that can be opened or closed by rotating 90 degrees to connect or separate the channel opening on the valve plug with the channel opening on the valve body. The shape of its valve plug can be cylindrical or conical. In a cylindrical valve plug, the channel is generally rectangular; in a conical valve plug, the channel is trapezoidal. These shapes make the structure of the plug valve light. It is most suitable for cutting off and connecting media and for diversion, but it can sometimes be used for throttling depending on the applicable properties and the erosion resistance of the sealing surface.

[0003] According to a publicly disclosed anti-scaling lifting plug valve (publication number: CN212928823U), in the above application, rotating the hexagon socket bolt head drives the descaling rod to rotate, and the rotation of the descaling rod drives the descaling brush to rotate to clean the left side of the filter screen to prevent clogging after descaling and filtering. The cleaned filtered dirt falls into the dirt collection box through the sewage outlet for collection.

[0004] In the above application, when cleaning the filter, the staff is required to manually rotate the hexagonal bolt head to clean the filter. Moreover, since the filter is fixed in the valve body, the staff cannot see the filter and cannot clean the filter in time. In addition, the above device cleans by rotating the descaling brush, and the outer wall of the filter cannot be fully cleaned. Only partial positions can be cleaned, resulting in poor cleaning effect. Utility Model Content

[0005] The utility model aims to provide an anti-scaling lifting plug valve to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solutions: an anti-scaling lifting plug valve, comprising a valve body, a liquid inlet pipe is fixed on the left side of the valve body, a filter screen is fixed on the inner wall of the liquid inlet pipe, a collecting box is fixed on the bottom of the liquid inlet pipe, a cleaning mechanism for cleaning the filter screen is arranged on the filter screen, a knocking mechanism is arranged on the cleaning mechanism, and the cleaning mechanism comprises:

[0007] A rotating shaft, the rotating shaft is rotatably mounted on the side wall of the filter screen, and an impeller is fixed to an end point of the rotating shaft;

[0008] A moving block is slidably mounted on the inner wall of the rotating shaft, connecting blocks are fixed on the upper and lower sides of the moving block, and a brush is fixed on the side wall of the connecting block.

[0009] Preferably, a compression spring is fixed to the side wall of the moving block, and a side of the compression spring away from the moving block is fixed to the inner wall of the rotating shaft.

[0010] Preferably, the knocking mechanism comprises a sleeve, the sleeve is fixed to the outer wall of the rotating shaft, and a sleeve rod is slidably mounted on the inner wall of the sleeve.

[0011] Preferably, a return spring is fixed to the end point of the sleeve rod, and the side of the return spring away from the sleeve rod is fixed to the inner wall of the sleeve. The inner wall of the liquid inlet pipe is fixed with a slope block. The return spring can achieve the effect of resetting the sleeve rod.

[0012] Preferably, a connecting rod is fixed to the outer wall of the sleeve rod, a fixed block is fixed to the end point of the connecting rod, a connecting rod is fixed to the side wall of the fixed block, and a slapping block is fixed to the end point of the connecting rod. By providing the slapping block, the brush can be slapped so that impurities attached to the brush can fall off quickly.

[0013] Preferably, two groups of brushes are provided, and the two groups of brushes are symmetrically arranged with the center line in the vertical direction of the rotating shaft as the symmetry axis. The brushes can be arranged to clean the outer wall of the filter.

[0014] Compared with the prior art, the utility model provides an anti-scaling lifting plug valve, which has the following beneficial effects:

[0015] 1. The anti-scaling lifting plug valve is provided with a cleaning mechanism, so that when water flows into the liquid inlet pipe, the brush can automatically rotate to fit the filter for rotational cleaning, and the brush fits on the surface of the filter and rotates, so that the brush can comprehensively clean the mesh of the filter, which is convenient for the staff to operate.

[0016] 2. The anti-scaling lifting plug valve is provided with a knocking mechanism. When the rotating shaft drives the brush to rotate, the beating block can knock the brush back and forth, so that the impurities attached to the brush can be knocked off, thereby preventing a large amount of impurities attached to the brush from affecting the cleaning operation of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of the overall part of the utility model;

[0019] Figure 3 This is a schematic diagram of the cleaning mechanism and the knocking mechanism structure of the utility model;

[0020] Figure 4It is a partial cross-sectional structural diagram of the cleaning mechanism and the knocking mechanism of the utility model;

[0021] Figure 5 For this utility model Figure 2 A magnified schematic diagram of the A structure.

[0022] In the figure: 1. valve body; 2. liquid inlet pipe; 3. filter screen; 4. collecting box; 5. cleaning mechanism; 51. rotating shaft; 52. impeller; 53. moving block; 54. connecting block; 55. brush; 56. extrusion spring; 6. knocking mechanism; 61. sleeve; 62. sleeve rod; 63. connecting rod; 64. fixed block; 65. connecting rod; 66. slapping block; 67. reset spring; 68. inclined block. DETAILED DESCRIPTION

[0023] like Figure 1-Figure 5 As shown, the utility model provides a technical solution: an anti-scaling lifting plug valve, including a valve body 1, a liquid inlet pipe 2 is fixed to the left side of the valve body 1, a filter screen 3 is fixed to the inner wall of the valve body 1, dirt can be filtered by setting the filter screen 3, a cleaning mechanism 5 for cleaning the filter screen 3 is arranged on the filter screen 3, and a knocking mechanism 6 is arranged on the cleaning mechanism 5.

[0024] Specifically, the cleaning mechanism 5 includes a rotating shaft 51, an impeller 52, an extrusion spring 56, a moving block 53, a connecting block 54 and a brush 55; the end point of the rotating shaft 51 is rotatably installed on the left side of the filter screen 3, and the impeller 52 is fixed to the end of the rotating shaft 51 away from the filter screen 3, and then when the water flows into the valve body 1 from the liquid inlet pipe 2, the water flow can drive the impeller 52 to rotate, and then the rotating shaft 51 rotates, and the moving block 53 is slidably installed on the inner wall of the rotating shaft 51, and the connecting blocks 54 are fixed on the upper and lower sides of the moving block 53, and the brush 55 is fixed on the side of the connecting block 54 close to the filter screen 3, and the brush 55 is away from the connecting block 54. One side is in contact with the filter screen 3, and a brush 55 is provided to clean the filter screen 3. A squeezing spring 56 is fixed to the side of the moving block 53 away from the connecting block 54, and the side of the squeezing spring 56 away from the moving block 53 is fixed to the inner side of the rotating shaft 51. By providing the squeezing spring 56, the brush 55 can be closely fitted with the filter screen 3 for rotation, so as to completely clean the filter holes on the surface of the filter screen 3. A slag discharge hole is provided at the bottom of the liquid inlet pipe 2, and a collecting box 4 is fixed to the bottom of the liquid inlet pipe 2. Impurities cleaned off the filter screen 3 fall through the slag discharge hole, so that the impurities fall into the collecting box 4 for collection.

[0025] Specifically, the striking mechanism 6 includes a sleeve 61, a sleeve rod 62, a return spring 67, a connecting rod 63, a fixed block 64, a connecting rod 65, a slapping block 66 and a ramp block 68; the sleeve 61 is fixed to the outer wall of the rotating shaft 51, the sleeve rod 62 is slidably mounted on the inner wall of the sleeve 61, the end of the sleeve rod 62 close to the rotating shaft 51 is fixed with a return spring 67, and the side of the return spring 67 away from the sleeve rod 62 is fixed to the inner wall of the sleeve 61, and the sleeve rod 62 can be set by setting the return spring 67. To achieve the reset effect, a connecting rod 63 is fixed to the outer wall of the sleeve rod 62, and a fixing block 64 is fixed to the end of the connecting rod 63 away from the sleeve rod 62. When the rotating shaft 51 rotates, the sleeve 61 can be driven to rotate, so that the sleeve rod 62 drives the connecting rod 63 and the fixing block 64 to rotate. A connecting rod 65 is fixed to the side of the fixing block 64 close to the rotating shaft 51, and a slapping block 66 is fixed to the end of the connecting rod 65 away from the fixing block 64. When the fixing block 64 rotates, the connecting rod 65 can be The flapping block 66 rotates together with the brush 55. A plurality of groups of inclined plane blocks 68 in a circular array are fixed to the inner wall of the liquid inlet pipe 2. When the sleeve rod 62 rotates, the arc surface at the end of the sleeve rod 62 contacts the inclined plane block 68, which in turn causes the sleeve rod 62 to be squeezed, so that the sleeve rod 62 can move into the sleeve 61, compressing the return spring 67. Through the cooperation of the connecting rod 65, the fixed block 64 and the connecting rod 63, the flapping block 66 can flap the outer wall of the brush 55. It can clean the brush 55 and knock off the impurities attached to the brush 55 to prevent a large amount of impurities from being attached to the brush 55 and affecting the effect of the brush 55 in cleaning the filter 3. When the sleeve rod 62 rotates to no longer contact the inclined block 68, the sleeve rod 62 is not subjected to the squeezing force and the reset spring 67 is in a compressed state, so that the sleeve rod 62 can be reset. Then, when the sleeve rod 62 rotates on the inclined block 68, the beating block 66 can be made to beat the brush 55 back and forth.

[0026] Working principle: When the valve body 1 is in use, the water flow can drive the impeller 52 to rotate, and then the rotating shaft 51 can be rotated. The connecting block 54 can be driven to rotate through the moving block 53, and the brush 55 can be rotated in close contact with the filter screen 3, so as to clean the surface of the filter screen 3. The impurities cleaned off the filter screen 3 fall through the slag discharge hole, and the impurities fall into the collection box 4 for collection.

[0027] When the rotating shaft 51 rotates, the sleeve 61 can be driven to rotate, so that the sleeve rod 62 drives the connecting rod 63 and the fixed block 64 to rotate. When the fixed block 64 rotates, the connecting rod 65 can be rotated, so that the slapping block 66 and the brush 55 rotate together. When the sleeve rod 62 rotates, the arc surface at the end point of the sleeve rod 62 will contact the inclined block 68, and then the sleeve rod 62 will be subjected to an extrusion force, so that the sleeve rod 62 can move into the sleeve 61, so that the reset spring 67 is compressed. Through the cooperation of the connecting rod 65, the fixed block 64 and the connecting rod 63, the slapping block 66 can slap the outer wall of the brush 55, which can have the effect of cleaning the brush 55, and can slap off the impurities attached to the brush 55, so as to prevent a large amount of impurities from being attached to the brush 55 and affecting the effect of the brush 55 in cleaning the filter 3.

[0028] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. An anti-scaling lifting plug valve, comprising a valve body (1), characterized in that: A liquid inlet pipe (2) is fixed on the left side of the valve body (1), a filter screen (3) is fixed on the inner wall of the liquid inlet pipe (2), a collecting box (4) is fixed on the bottom of the liquid inlet pipe (2), a cleaning mechanism (5) for cleaning the filter screen (3) is provided on the filter screen (3), a knocking mechanism (6) is provided on the cleaning mechanism (5), and the cleaning mechanism (5) comprises: A rotating shaft (51), the rotating shaft (51) being rotatably mounted on a side wall of the filter screen (3), and an impeller (52) being fixed at an end point of the rotating shaft (51); A moving block (53) is slidably mounted on the inner wall of the rotating shaft (51), connecting blocks (54) are fixed on the upper and lower sides of the moving block (53), and a brush (55) is fixed on the side wall of the connecting block (54).

2. The anti-scaling lifting plug valve according to claim 1, characterized in that: A pressing spring (56) is fixed to the side wall of the moving block (53), and the side of the pressing spring (56) away from the moving block (53) is fixed to the inner wall of the rotating shaft (51).

3. The anti-scaling lifting plug valve according to claim 1, characterized in that: The knocking mechanism (6) comprises a sleeve (61), the sleeve (61) is fixed to the outer wall of the rotating shaft (51), and a sleeve rod (62) is slidably mounted on the inner wall of the sleeve (61).

4. The anti-scaling lifting plug valve according to claim 3, characterized in that: A return spring (67) is fixed to the end point of the sleeve rod (62), and the side of the return spring (67) away from the sleeve rod (62) is fixed to the inner wall of the sleeve (61). A slope block (68) is fixed to the inner wall of the liquid inlet pipe (2).

5. The anti-scaling lifting plug valve according to claim 3, characterized in that: A connecting rod (63) is fixed to the outer wall of the sleeve rod (62), a fixing block (64) is fixed to the end point of the connecting rod (63), a connecting rod (65) is fixed to the side wall of the fixing block (64), and a beating block (66) is fixed to the end point of the connecting rod (65).

6. The anti-scaling lifting plug valve according to claim 1, characterized in that: The brushes (55) are provided in two groups, and the two groups of brushes (55) are symmetrically arranged with the center line of the rotating shaft (51) in the vertical direction as the symmetry axis.

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