A slurry gate valve with a slag discharge device

Abstract

The utility model discloses a mud gate valve with a slag discharge device. It relates to the technical field of gate valves, and comprises a mud gate valve body, a gate pipe, and a limit device. The bottom end of the mud gate valve body is communicated with the inside of the gate pipe, and a slag discharge box is fixedly installed on one side of the mud gate valve body and located on the gate pipe, and the inside of the slag discharge box is communicated with the gate pipe. The utility model is provided with a slag discharge box. When the mud passes through the valve pipe, the stones in the mud are double filtered and blocked by a large-aperture filter screen and a small-aperture filter screen. The stones fall into the collection box through the stone-falling hole and the chip discharge hole. After the mud slag discharge and filtration are completed, the operator can pull out the drawer through the handle to clean the stones filtered in the collection box, which greatly improves the service life of the mud gate valve and solves the problem that when the stones follow the mud through the mud gate valve, they will cause greater friction or impact on the inside of the gate valve, thereby causing damage to the inside of the gate valve.

Description

Technical Field

[0001] The utility model relates to the technical field of gate valves, in particular to a mud gate valve with a slag discharge device. Background Art

[0002] The gate valve is a gate valve, which is a start-and-stop part. The movement direction of the gate valve is perpendicular to the direction of the fluid. The gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled. The gate valve is sealed by contact between the valve seat and the gate valve. Usually, the sealing surface will be welded with metal materials to increase wear resistance, such as 1Cr13, STL6, stainless steel, etc. The gate valve has a rigid gate valve and an elastic gate valve. According to the different gate valves, the gate valve is divided into a rigid gate valve and an elastic gate valve. The start-and-stop part of the gate valve is the gate valve, and the movement direction of the gate valve is perpendicular to the direction of the fluid. The gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled. The gate valve has two sealing surfaces. The two sealing surfaces of the most commonly used mode gate valve form a wedge shape. The wedge angle varies with the valve parameters, usually 5°, and 2°52' when the medium temperature is not high. The gate valve of the wedge gate valve can be made into a whole, called a rigid gate valve; it can also be made into a gate valve that can produce a slight deformation to improve its processability and compensate for the deviation of the sealing surface angle during the processing. This gate valve is called an elastic gate valve. When the gate valve is closed, the sealing surface can be sealed only by the medium pressure, that is, the sealing surface of the gate can be pressed against the valve seat on the other side by the medium pressure to ensure the sealing of the sealing surface, which is self-sealing. Most gate valves use forced sealing, that is, when the valve is closed, the gate must be pressed against the valve seat by external force to ensure the sealing of the sealing surface. The gate of the gate valve moves linearly with the valve stem, which is called a lifting stem gate valve, also called a rising stem gate valve. Usually there is a trapezoidal thread on the lifting stem, and the rotary motion is converted into linear motion through the nut at the top of the valve and the guide groove on the valve body, that is, the operating torque is converted into operating thrust, and the mud gate valve is a type of gate valve.

[0003] At present, when the gate valves on the market are in use, they need to be connected to the pipeline. When the mud gate valve is in use, the mud gate valve also needs to be connected to the pipeline. In actual use, when the mud gate valve is in use, the mud transported through the mud conveying pipeline will contain large stones. When the stones follow the mud through the mud gate valve, it will cause greater friction or impact on the inside of the gate valve, thereby causing losses inside the gate valve, thereby reducing the service life of the mud gate valve. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a mud gate valve with a slag discharge device, which solves the problem that the gate valves currently on the market need to be connected to a pipeline when in use. The mud gate valve also needs to be connected to a pipeline when in use. In actual use, when the mud gate valve is in use, the mud transported through the mud transport pipeline may contain larger stones. When the stones follow the mud through the mud gate valve, greater friction or impact will be generated on the inside of the gate valve, thereby causing losses inside the gate valve, thereby reducing the service life of the mud gate valve.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A mud gate valve with a slag discharge device comprises a mud gate valve body, a gate pipe, and a limiting device. The bottom end of the mud gate valve body is communicated with the interior of the gate pipe. A slag discharge box is fixedly installed on one side of the mud gate valve body and located on the gate pipe. The interior of the slag discharge box is communicated with the gate pipe. A collecting box is installed at the bottom end of the slag discharge box. The collecting box is open and movably connected to a drawer. A handle is fixedly installed on one side of the drawer. A large-aperture filter screen and a small-aperture filter screen are installed from left to right in the interior of the slag discharge box. A pull plate is fixedly installed on one side of the large-aperture filter screen and the small-aperture filter screen. The pull plate is tightly fitted with the top wall of the slag discharge box through the limiting device. A ladder-shaped rock-falling hole is opened on the bottom wall of the slag discharge box and located on one side of the large-aperture filter screen. A plurality of chip discharge holes are opened on the bottom wall of the slag discharge box and located on one side of the rock-falling hole.

[0007] Preferably, the limiting device includes a sealing plate, the bottom end of the sealing plate contacts with a slag discharge box, the top of the slag discharge box is provided with symmetrical slots, the lower surface of the sealing plate is provided with symmetrical movable slots, a transmission cavity is provided inside the sealing plate, a turntable is provided above the sealing plate, a rotating rod is installed at the bottom end of the turntable, an active bevel gear is installed on one side of the rotating rod that passes through the transmission cavity, the active bevel gear is meshed with the driven bevel gear, a transmission threaded rod is installed on the driven bevel gear, the transmission threaded rod extends into the movable slot, a moving block is threadedly connected to the transmission threaded rod, a clamping block is installed at the bottom end of the moving block, and the clamping block and the clamping slot are clamped and connected.

[0008] Preferably, the outer wall of the valve tube is movably connected to a pipeline body, a rubber pad is provided on the periphery of the pipeline body, a first connecting piece is installed on one side of the rubber pad, a handwheel is provided on one side of the upper end of the first connecting piece, one side of the handwheel passes through the first connecting piece and the second connecting piece and is installed with a first bidirectional screw, symmetrical positioning blocks are installed on one side of the inner side of the first connecting piece and the second connecting piece, a main pulley is installed on the first bidirectional screw and located in the second connecting piece, the main pulley is connected to a driven pulley via a belt, a second bidirectional screw is installed on the driven pulley, the second bidirectional screw passes through the first connecting piece, and the positioning block is threadedly connected to the first bidirectional screw and the second bidirectional screw.

[0009] Preferably, a first fixed block is fixedly installed on the top of the first connecting member, a second fixed block is fixedly installed on the top of the second connecting member, a limiting plate is fixedly installed on one side of the second fixed block, a conical block is fixedly installed on one side of the limiting plate, a plurality of limiting grooves are provided on both sides of the limiting plate, a sliding groove is provided on one side of the second fixed block, the sliding groove and the limiting plate are movably connected, an inner cavity is provided in the second fixed block, a plurality of stabilizing blocks are fixedly installed on the top and bottom ends of the inner cavity, a return spring is fixedly installed on the bottom end of the stabilizing block, a connecting block is installed on the bottom end of the return spring, the connecting block is hinged to the limiting block, and the limiting groove and the limiting block are clamped and connected.

[0010] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0011] The utility model provides a mud gate valve with a slag discharge device. The slag discharge box is provided. When the mud passes through the valve pipe, the stones in the mud are double filtered and blocked by the large-aperture filter screen and the small-aperture filter screen. The stones fall into the collection box through the stone-dropping hole and the chip discharge hole. After the mud slag discharge and filtering are completed, the operator can pull out the drawer through the handle to clean the stones filtered in the collection box, which greatly improves the service life of the mud gate valve and solves the problem that the stones will cause greater friction or impact on the inside of the gate valve when the stones follow the mud through the mud gate valve, thereby causing damage to the inside of the gate valve.

[0012] The utility model can make the valve pipe and the pipeline body connected conveniently, by turning the hand wheel, the hand wheel drives the first bidirectional screw to rotate, the first bidirectional screw drives the main pulley to rotate, the main pulley drives the driven pulley to rotate through the belt, the driven pulley drives the second bidirectional screw, the positioning block drives the first connecting piece and the second connecting piece to squeeze and fix the pipeline body, and at the same time, the limiting plate on the first fixing block is inserted into the inner cavity of the second fixing block until the limiting groove and the limiting block are matched, and the limiting block further completes the squeezing and fixing of the first connecting piece and the second connecting piece to the pipeline body under the elasticity of the reset spring;

[0013] The utility model provides a limiting device, which is convenient for installing and disassembling large-aperture filter screens and small-aperture filter screens for cleaning, thereby greatly improving the filtering effect and efficiency. At the same time, the active bevel gear is driven to rotate by rotating the turntable, the active bevel gear drives the transmission bevel gear to rotate, the transmission bevel gear drives the transmission threaded rod to rotate, and the transmission threaded rod drives the moving block to move toward the inside of the card slot on one side of the upper end of the slag discharge box until the card block and the card slot are matched, so that the limiting device is closely fitted with the top wall of the slag discharge box, thereby improving the sealing and filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the front view of the utility model.

[0015] Figure 2 It is a side view of the first connecting member of the utility model.

[0016] Figure 3 It is a schematic diagram of the internal structure of the slag discharge box of the utility model.

[0017] Figure 4 This is a schematic diagram of the internal structure when the first fixing block and the second fixing block of the utility model are connected.

[0018] Figure 5 for Figure 3 A magnified view of the local structure at A.

[0019] In the figure: 1. mud gate valve body; 2. valve pipe; 3. pipeline body; 4. limit device; 4.1. sealing plate; 4.11. transmission chamber; 4.12. movable groove; 4.13. turntable; 4.14. rotating rod; 4.15. active bevel gear; 4.16. transmission bevel gear; 4.17. transmission threaded rod; 4.18. moving block; 4.19. clamping block; 4.2. clamping groove; 5. first connecting piece; 6. second connecting piece; 7. hand wheel; 8. first bidirectional screw; 9. positioning block; 10. main pulley; 11. , belt; 12, driven pulley; 13, second bidirectional screw; 14, first fixed block; 15, second fixed block; 16, sliding groove; 17, limit plate; 18, limit groove; 19, tapered block; 20, inner cavity; 21, stabilizing block; 22, reset spring; 23, connecting block; 24, limit block; 25, slag box; 26, drawer; 27, handle; 28, collection box; 29, large-aperture filter; 30, small-aperture filter; 31, pull plate; 32, rockfall hole; 33, chip removal hole; 34, rubber pad. DETAILED DESCRIPTION

[0020] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0021] According to an embodiment of the utility model, a mud gate valve with a slag discharge device is provided.

[0022] Embodiment 1:

[0023] As shown in the attached figure of the instruction manual Figure 1 As shown, a mud gate valve with a slag discharge device comprises a mud gate valve body 1, a gate tube 2, and a limit device 4. The bottom end of the mud gate valve body 1 is communicated with the inside of the gate tube 2. A slag discharge box 25 is fixedly installed on one side of the mud gate valve body 1 and located on the gate tube 2. The inside of the slag discharge box 25 is communicated with the gate tube 2. A collecting box 28 is installed at the bottom end of the slag discharge box 25. The collecting box 28 is open and movably connected to a drawer 26. A handle is fixedly installed on one side of the drawer 26. 27. A large-aperture filter screen 29 and a small-aperture filter screen 30 are installed inside the slag box 25 from left to right. A pull plate 31 is fixedly installed on one side of the large-aperture filter screen 29 and the small-aperture filter screen 30. The pull plate 31 is tightly fitted with the top wall of the slag box 25 through a limiting device 4. A ladder-shaped rock-falling hole 32 is opened on the bottom wall of the slag box 25 and located on one side of the large-aperture filter screen 29. A plurality of chip discharge holes 33 are opened on the bottom wall of the slag box 25 and located on one side of the rock-falling hole 32.

[0024] Embodiment 2:

[0025] As shown in the attached figure of the instruction manual Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, a mud gate valve with a slag discharge device, when in use, firstly drives the active bevel gear 4.15 to rotate by rotating the turntable 4.13, the active bevel gear 4.15 drives the transmission bevel gear 4.16 to rotate, the transmission bevel gear 4.16 drives the transmission threaded rod 4.17 to rotate, and the transmission threaded rod 4.17 drives the moving block 4.18 to move into the groove 4.2 on one side of the upper end of the slag discharge box 25 until the block 4.19 and the groove 4.2 are adapted, so that the limit device 4 is closely fitted with the top wall of the slag discharge box 25, thereby improving the sealing and filtering effect. When the mud passes through the valve pipe 2, the stones in the mud are double filtered and blocked by the large-aperture filter screen 29 and the small-aperture filter screen 30, and the stones fall into the collection box 28 through the stone-dropping hole 32 and the chip-discharging hole 33. After the mud is filtered, the operator pulls out the drawer 26 through the handle 27 to clean the filtered stones in the collection box 28, which greatly improves the service life of the mud gate valve and solves the problem that when the stones follow the mud through the mud gate valve, they will cause greater friction or impact on the inside of the gate valve, thereby causing damage to the inside of the gate valve.

[0026] The utility model can make the valve tube 2 and the pipeline body 3 connected conveniently. By rotating the hand wheel 7, the hand wheel 7 drives the first bidirectional screw 8 to rotate, the first bidirectional screw 8 drives the main pulley 10 to rotate, the main pulley 10 drives the driven pulley 12 to rotate through the belt 11, the driven pulley 12 drives the second bidirectional screw 13, the positioning block 9 drives the first connecting member 5 and the second connecting member 6 to squeeze and fix the pipeline body 3, and at the same time, the limiting plate 17 on the first fixing block 14 is inserted into the inner cavity of the second fixing block 15 until the limiting groove 18 and the limiting block 24 are matched, and the limiting block 24 further completes the squeezing and fixing of the first connecting member 5 and the second connecting member 6 to the pipeline body 3 under the elasticity of the reset spring 22.

[0027] The utility model provides the limiting device 4, which facilitates the installation and removal of the large-aperture filter screen 29 and the small-aperture filter screen 30 for cleaning, thereby greatly improving the filtering effect and efficiency.

[0028] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A slurry gate valve with a slag discharge device, characterized in that: The invention comprises a mud gate valve body (1), a valve pipe (2), and a limit device (4); the bottom end of the mud gate valve body (1) is communicated with the inside of the valve pipe (2); a slag discharge box (25) is fixedly installed on one side of the mud gate valve body (1) and located on the valve pipe (2); the inside of the slag discharge box (25) is communicated with the valve pipe (2); a collecting box (28) is installed at the bottom end of the slag discharge box (25); the collecting box (28) is open; the collecting box (28) is movably connected to a drawer (26); a handle (27) is fixedly installed on one side of the drawer (26); A large-aperture filter screen (29) and a small-aperture filter screen (30) are installed inside the slag discharge box (25) from left to right. A pull plate (31) is fixedly installed on one side of the large-aperture filter screen (29) and the small-aperture filter screen (30). The pull plate (31) is tightly fitted with the top wall of the slag discharge box (25) through a limiting device (4). A ladder-shaped rock drop hole (32) is opened on the bottom wall of the slag discharge box (25) and located on one side of the large-aperture filter screen (29). A plurality of chip discharge holes (33) are opened on the bottom wall of the slag discharge box (25) and located on one side of the rock drop hole (32).

2. A slurry gate valve with a slag discharge device according to claim 1, characterized in that: The limiting device (4) comprises a sealing plate (4.1), the bottom end of the sealing plate (4.1) contacts a slag discharge box (25), the top end of the slag discharge box (25) is provided with symmetrical clamping grooves (4.2), the lower surface of the sealing plate (4.1) is provided with symmetrical movable grooves (4.12), the interior of the sealing plate (4.1) is provided with a transmission cavity (4.11), a rotating disk (4.13) is arranged above the sealing plate (4.1), a rotating rod (4.14) is installed at the bottom end of the rotating disk (4.13), and the rotating rod (4.14) penetrates to A driving bevel gear (4.15) is installed on one side of the transmission cavity (4.11), the driving bevel gear (4.15) is meshed with a driven bevel gear (4.16), a transmission threaded rod (4.17) is installed on the driven bevel gear (4.16), the transmission threaded rod (4.17) extends into the movable groove (4.12), a moving block (4.18) is threadedly connected on the transmission threaded rod (4.17), a clamping block (4.19) is installed at the bottom end of the moving block (4.18), and the clamping block (4.19) and the clamping groove (4.2) are clamped and connected.

3. The slurry gate valve with a slag discharge device according to claim 1, characterized in that: The outer wall of the valve tube (2) is movably connected to a pipeline body (3), and a rubber pad (34) is provided on the periphery of the pipeline body (3). A first connecting member (5) is installed on one side of the rubber pad (34). A hand wheel (7) is provided on one side of the upper end of the first connecting member (5). A first bidirectional lead screw (8) is installed on one side of the hand wheel (7) passing through the first connecting member (5) and the second connecting member (6). Symmetrical positioning blocks (9) are installed on one side of the inner side of the first connecting member (5) and the second connecting member (6). A main pulley (10) is installed on the first bidirectional lead screw (8) and located in the second connecting member (6). The main pulley (10) is connected to a driven pulley (12) through a belt (11). A second bidirectional lead screw (13) is installed on the driven pulley (12). The second bidirectional lead screw (13) passes through the first connecting member (5). The positioning block (9) is threadedly connected to the first bidirectional lead screw (8) and the second bidirectional lead screw (13).

4. A slurry gate valve with a slag discharge device according to claim 3, characterized in that: A first fixing block (14) is fixedly mounted on the top of the first connecting member (5), a second fixing block (15) is fixedly mounted on the top of the second connecting member (6), a limiting plate (17) is fixedly mounted on one side of the second fixing block (15), a conical block (19) is fixedly mounted on one side of the limiting plate (17), a plurality of limiting grooves (18) are formed on both sides of the limiting plate (17), a sliding groove (16) is formed on one side of the second fixing block (15), and the sliding groove (19) is fixedly mounted on one side of the limiting plate (17). 16) is movably connected with the limiting plate (17), an inner cavity (20) is opened in the second fixed block (15), a plurality of stabilizing blocks (21) are fixedly installed at the top and bottom of the inner cavity (20), a reset spring (22) is fixedly installed at the bottom end of the stabilizing block (21), a connecting block (23) is installed at the bottom end of the reset spring (22), the connecting block (23) is hinged to the limiting block (24), and the limiting groove (18) and the limiting block (24) are clamped and connected.

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