Sediment-proof butterfly valve

Abstract

The utility model belongs to the technical field of butterfly valves, and particularly relates to an anti-sediment butterfly valve which comprises a valve body, a water inlet and a water outlet are formed in the left side and the right side of the valve body respectively. The valve rod is fixedly connected with a valve core; the handle is fixedly connected with the valve rod; the silt prevention mechanism comprises a motor, a threaded rod, a threaded sleeve, a cleaning brush and a filter screen, the filter screen is arranged at the water inlet of the valve body, the output end of the motor is fixedly connected with the threaded rod, the threaded rod is arranged on the left side of the filter screen, the surface of the threaded rod is in threaded connection with the threaded sleeve, and the cleaning brush is fixedly connected to the right side of the threaded sleeve; the cleaning brush abuts against the filter screen; according to the sediment-preventing butterfly valve, the filter screen is arranged at the water inlet, sediment can be effectively intercepted and prevented from entering the valve body, the motor drives the threaded rod to rotate, the threaded sleeve moves along the threaded rod, the cleaning brush is driven to clean the filter screen, and the sediment is effectively prevented from blocking the filter screen.

Description

Technical Field

[0001] The utility model belongs to the technical field of butterfly valves, and in particular relates to a sediment-proof butterfly valve. Background Art

[0002] The butterfly valve, also known as the flap valve, is a simple regulating valve that can be used for the on-off control of low-pressure pipeline media. The opening and closing part of the butterfly valve is a disc-shaped butterfly plate, which rotates around its own axis in the valve body to achieve the purpose of opening and closing or regulating. When the butterfly plate is fully closed, it fits completely with the valve seat to form a completely blocked sealing surface. Butterfly valves are usually used in low-pressure pipelines and can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media. The working principle of the butterfly valve makes it have the characteristics of fast closing, and it is low in cost, light in weight and requires less support. The valve stem of the butterfly valve is a through-rod structure, which has been tempered and has good comprehensive mechanical properties and corrosion resistance.

[0003] The utility model with authorization announcement number CN214743387U discloses a butterfly valve with anti-leakage function, including a lower valve body, an upper valve body and a butterfly plate. The middle part of the top end of the lower valve body is fixedly connected with the bottom end of the upper valve body, a through hole is opened in the middle part of the top end of the upper valve body, the inner wall of the through hole is interlaced and connected with the middle part of the valve stem, a butterfly plate is sleeved on the bottom of the valve stem, arc grooves are opened on both sides of the butterfly plate, and air bags are fixedly connected to the inner walls of one side of the two arc grooves, the air inlets of the two air bags are fixedly connected with one end of the one-way air inlet nozzle through one of the gas transmission pipes, and the air outlets of the two air bags are fixedly connected with one end of the one-way air outlet nozzle through another gas transmission pipe. The butterfly valve introduces gas into the air bag through the one-way air inlet nozzle and the gas transmission pipe to expand the air bag to seal the side of the butterfly plate with the inner wall of the lower valve body, which can improve the anti-leakage performance of the butterfly valve, and thus effectively improve the practicality of the butterfly valve. During use, mud and sand easily enter the existing butterfly valve body and settle at the bottom of the valve body, which may cause the valve body to be unable to close and reduce the sealing performance of the butterfly valve, thus affecting its use. Utility Model Content

[0004] The utility model aims to provide a mud and sand proof butterfly valve for preventing mud and sand from entering the interior of the valve body in view of the above-mentioned existing technical problems.

[0005] In view of this, the utility model provides a silt-proof butterfly valve, comprising: a valve body, wherein a water inlet and a water outlet are respectively arranged on the left and right sides of the valve body; a valve stem, wherein the valve stem is fixedly connected with a valve core; a handle, wherein the handle is fixedly connected to the valve stem; and further comprising: an anti-silt mechanism, wherein the anti-silt mechanism comprises a motor, a threaded rod, a threaded sleeve, a cleaning brush and a filter screen, wherein the filter screen is arranged at the water inlet of the valve body, wherein the output end of the motor is fixedly connected to the threaded rod, wherein the threaded rod is arranged on the left side of the filter screen, wherein the surface of the threaded rod is threadedly connected to the threaded sleeve, wherein the cleaning brush is fixedly connected to the right side of the threaded sleeve, and wherein the cleaning brush abuts against the filter screen; wherein the anti-silt mechanism is arranged at the water inlet of the valve body.

[0006] In this technical solution, the filter screen is arranged at the water inlet, which can effectively intercept mud and sand and prevent it from entering the valve body. The motor drives the threaded rod to rotate, and the threaded sleeve moves along the threaded rod, driving the cleaning brush to clean the filter screen, effectively preventing mud and sand from clogging the filter screen.

[0007] In the above technical solution, further, the anti-mud and sand mechanism also includes: a fixed rod, which is arranged on the left side of the threaded rod; a movable ring, which is fixedly connected to the left side of the threaded sleeve, and the movable ring is slidably connected to the fixed rod; a brush ring, the two brush rings are respectively fixedly connected to the top and bottom of the threaded sleeve, and the inner wall of the brush ring is in contact with the surface of the threaded rod.

[0008] In the above technical solution, further, a collecting port is opened at the bottom of the water inlet of the valve body, and the collecting port is located between the threaded rod and the filter screen. The bottom end of the collecting port is connected to a collecting box, and a sealing cover is detachably connected to the bottom of the collecting box. An observation window is provided on one side of the collecting box.

[0009] In the above technical solution, further, a limiting mechanism is provided at the top end of the valve body.

[0010] In the above technical solution, further, the limiting mechanism includes: a mounting seat, the mounting seat is fixedly connected to the valve body, and the valve stem passes through the mounting seat; a mounting groove, the mounting groove is opened in the mounting seat, and a limiting rod is slidably connected in the mounting groove; a clamping groove, a plurality of the clamping grooves are evenly opened on the valve stem, and one end of the limiting rod is clamped in the clamping groove; a rack, the rack is arranged on the limiting rod, and the rack is meshingly connected with a gear; a rotating shaft, the rotating shaft is connected at the axis center of the gear, the rotating shaft passes through the mounting seat and extends to the top of the mounting seat; a knob, the knob is fixedly connected to one end of the outer side of the rotating shaft.

[0011] The beneficial effects of the utility model are:

[0012] 1. The filter is set at the water inlet, which can effectively intercept mud and sand and prevent it from entering the valve body. The motor drives the threaded rod to rotate, and the threaded sleeve moves along the threaded rod, driving the cleaning brush to clean the filter, effectively preventing mud and sand from clogging the filter.

[0013] 2. The brush ring contacts the surface of the threaded rod. When the threaded sleeve moves, the brush ring removes the sand and impurities on the surface of the threaded rod to ensure the smooth rotation of the threaded rod.

[0014] 3. The collection box can collect the sediment intercepted by the filter, which is convenient for the cleaning and treatment of the sediment. A sealing cover is provided at the bottom of the collection box to prevent the leakage of sediment. An observation window is provided to facilitate the observation of the accumulation of sediment.

[0015] 4. By turning the knob, the gear is driven to rotate, and then the rack drives the limit rod to move, so that one end of the limit rod is inserted into the slot, and the valve stem is limited and fixed to prevent the fluid from impacting the valve core and causing the valve core to drive the valve stem to rotate, thereby enhancing the durability and stability of the butterfly valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a schematic structural diagram of a specific implementation method of the utility model.

[0018] Figure 2 It is a structural schematic diagram of the anti-silt mechanism of the utility model.

[0019] Figure 3 It is a structural schematic diagram of the threaded rod of the utility model.

[0020] Figure 4 For this utility model Figure 3 Schematic diagram of the structure with a partial enlargement at point A in the middle.

[0021] Figure 5 It is a structural schematic diagram of the limiting mechanism of the utility model.

[0022] The symbols in the figure are:

[0023] 1-valve body, 11-water inlet, 12-water outlet, 2-valve stem, 3-handle, 4-anti-silt mechanism, 41-motor, 42-threaded rod, 43-threaded sleeve, 44-cleaning brush, 45-filter screen, 46-fixed rod, 47-moving ring, 48-brush ring, 5-collecting port, 6-collecting box, 7-sealing cover, 8-observation window, 9-limiting mechanism, 91-mounting seat, 92-mounting slot, 93-limiting rod, 94-slot, 95-rack, 96-gear, 97-rotating shaft, 98-knob. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on 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.

[0025] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0026] Embodiment 1:

[0027] The embodiment of the present application provides a sediment prevention butterfly valve, comprising: a valve body 1, wherein a water inlet 11 and a water outlet 12 are respectively provided on the left and right sides of the valve body 1; a valve stem 2, wherein the valve stem 2 is fixedly connected to a valve core; a handle 3, wherein the handle 3 is fixedly connected to the valve stem 2; and further comprising: an sediment prevention mechanism 4, wherein the sediment prevention mechanism 4 comprises a motor 41, a threaded rod 42, a threaded sleeve 43, a cleaning brush 44 and a filter screen 45, wherein the filter screen 45 is arranged at the water inlet 11 of the valve body 1, wherein the output end of the motor 41 is fixedly connected to the threaded rod 42, wherein the threaded rod 42 is arranged on the left side of the filter screen 45, wherein the surface of the threaded rod 42 is threadedly connected to the threaded sleeve 43, wherein the cleaning brush 44 is fixedly connected to the right side of the threaded sleeve 43, wherein the cleaning brush 44 abuts against the filter screen 45; wherein the sediment prevention mechanism 4 is arranged at the water inlet 11 of the valve body 1.

[0028] In this embodiment, refer to Figure 1 and Figure 2 As shown, the filter screen 45 is arranged at the water inlet 11, which can effectively intercept mud and sand and prevent it from entering the valve body 1. The motor 41 drives the threaded rod 42 to rotate, and the threaded sleeve 43 moves along the threaded rod 42, driving the cleaning brush 44 to clean the filter screen 45, effectively preventing mud and sand from clogging the filter screen 45.

[0029] Embodiment 2:

[0030] This embodiment provides a mud and sand prevention butterfly valve, which, in addition to the technical solutions of the above embodiments, also has the following technical features, and the mud and sand prevention mechanism 4 also includes:

[0031] A fixing rod 46, the fixing rod 46 is arranged on the left side of the threaded rod 42;

[0032] A movable ring 47, the movable ring 47 is fixedly connected to the left side of the threaded sleeve 43, and the movable ring 47 is slidably connected to the fixed rod 46;

[0033] The two brush rings 48 are fixedly connected to the top and bottom of the threaded sleeve 43 , respectively, and the inner wall of the brush ring 48 contacts the surface of the threaded rod 42 .

[0034] In this embodiment, refer to Figure 2 , Figure 3 and Figure 4 As shown, the brush ring 48 contacts the surface of the threaded rod 42 . When the threaded sleeve 43 moves, the brush ring 48 removes the sand and impurities on the surface of the threaded rod 42 to ensure the smooth rotation of the threaded rod 42 .

[0035] Embodiment 3:

[0036] The present embodiment provides a sediment prevention butterfly valve, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features: a collecting port 5 is provided at the bottom of the water inlet 11 of the valve body 1, the collecting port 5 is located between the threaded rod 42 and the filter screen 45, the bottom end of the collecting port 5 is connected to a collecting box 6, the bottom of the collecting box 6 is detachably connected to a sealing cover 7, and an observation window 8 is provided on one side of the collecting box 6.

[0037] In this embodiment, refer to Figure 2 As shown, the collecting box 6 can collect the silt intercepted by the filter screen 45, which is convenient for cleaning and processing of the silt. A sealing cover 7 is provided at the bottom of the collecting box 6 to prevent leakage of the silt. An observation window 8 is provided to facilitate observation of the accumulation of the silt.

[0038] Embodiment 4:

[0039] This embodiment provides a mud and sand prevention butterfly valve, which, in addition to the technical solutions of the above embodiments, also has the following technical features: a limit mechanism 9 is provided at the top of the valve body 1, and the limit mechanism 9 includes:

[0040] A mounting seat 91, the mounting seat 91 is fixedly connected to the valve body 1, and the valve stem 2 passes through the mounting seat 91;

[0041] A mounting groove 92, the mounting groove 92 is provided in the mounting seat 91, and a limit rod 93 is slidably connected in the mounting groove 92;

[0042] A plurality of slots 94 are evenly arranged on the valve stem 2, and one end of the limit rod 93 is clamped in the slot 94;

[0043] A rack 95, the rack 95 is disposed on the limiting rod 93, and the rack 95 is meshedly connected with a gear 96;

[0044] A rotating shaft 97, the rotating shaft 97 is connected to the axis of the gear 96, and the rotating shaft 97 passes through the mounting seat 91 and extends to the top of the mounting seat 91;

[0045] The knob 98 is fixedly connected to an outer end of the rotating shaft 97 .

[0046] In this embodiment, refer to Figure 1 and Figure 5 As shown, by turning the knob 98, the gear 96 is driven to rotate, and then the rack 95 drives the limit rod 93 to move, so that one end of the limit rod 93 is inserted into the slot 94, and the valve stem 2 is limited and fixed to prevent the fluid from impacting the valve core and causing the valve core to drive the valve stem 2 to rotate, thereby enhancing the durability and stability of the butterfly valve.

[0047] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A sediment prevention butterfly valve, comprising: A valve body (1), wherein a water inlet (11) and a water outlet (12) are respectively provided on the left and right sides of the valve body (1); A valve stem (2), wherein the valve stem (2) is fixedly connected to a valve core; A handle (3), wherein the handle (3) is fixedly connected to the valve stem (2); It is characterized by further comprising: An anti-silt mechanism (4), the anti-silt mechanism (4) comprising a motor (41), a threaded rod (42), a threaded sleeve (43), a cleaning brush (44) and a filter screen (45), the filter screen (45) being arranged at the water inlet (11) of the valve body (1), the output end of the motor (41) being fixedly connected to the threaded rod (42), the threaded rod (42) being arranged on the left side of the filter screen (45), the surface of the threaded rod (42) being threadedly connected to the threaded sleeve (43), the cleaning brush (44) being fixedly connected to the right side of the threaded sleeve (43), and the cleaning brush (44) being in contact with the filter screen (45); Wherein, the anti-silt mechanism (4) is arranged at the water inlet (11) of the valve body (1); A limiting mechanism (9) is provided at the top end of the valve body (1); The limiting mechanism (9) comprises: A mounting seat (91), wherein the mounting seat (91) is fixedly connected to the valve body (1), and the valve stem (2) passes through the mounting seat (91); A mounting groove (92), wherein the mounting groove (92) is provided in the mounting seat (91), and a limit rod (93) is slidably connected in the mounting groove (92); A clamping groove (94), wherein a plurality of the clamping grooves (94) are evenly arranged on the valve stem (2), and one end of the limit rod (93) is clamped in the clamping groove (94); A rack (95), wherein the rack (95) is arranged on the limiting rod (93), and the rack (95) is meshingly connected with a gear (96); A knob (98) is fixedly connected to an outer end of the rotating shaft (97).

2. The anti-sediment butterfly valve according to claim 1, characterized in that: The anti-silt mechanism (4) further comprises: A fixing rod (46), wherein the fixing rod (46) is arranged on the left side of the threaded rod (42); A moving ring (47), wherein the moving ring (47) is fixedly connected to the left side of the threaded sleeve (43), and the moving ring (47) is slidably connected to the fixed rod (46); Brush rings (48), two brush rings (48) are fixedly connected to the top and bottom of the threaded sleeve (43) respectively, and the inner wall of the brush ring (48) is in contact with the surface of the threaded rod (42).

3. The anti-sediment butterfly valve according to claim 1, characterized in that: A collecting port (5) is provided at the bottom of the water inlet (11) of the valve body (1), the collecting port (5) being located between the threaded rod (42) and the filter screen (45), the bottom end of the collecting port (5) being connected to a collecting box (6), the bottom of the collecting box (6) being detachably connected to a sealing cover (7), and an observation window (8) being provided on one side of the collecting box (6).

Images