Large-flow spherical stop valve for underground coal mine

Abstract

The utility model relates to the technical field of spherical stop valves, and discloses a large-flow spherical stop valve for underground coal mines, which comprises a valve body, a ball body is mounted at the middle end of the inner wall of the valve body, a sleeve seat is fixedly connected to the top end of the outer wall of the valve body, a valve rod is detachably connected to the inner wall of the sleeve seat, and the bottom end of the valve rod penetrates through the sleeve seat and is connected with the ball body. The valve rod is connected with a grab handle through a mounting assembly, a through groove is formed in the left side of the grab handle, a sliding rod is slidably connected to the inner wall of the through groove, connecting rods are rotatably connected to the left side and the right side of the sliding rod, and extension handles are rotatably connected to the top ends of the close sides of the connecting rods. According to the utility model, the rotating handle is easily lengthened through the sliding rod, the connecting rod and the extension handle under the working condition of large flow so as to reduce the operation burden and improve the operation efficiency, and the turbulent flow paddle is arranged before water flow enters the valve body so as to homogenize the water flow state, improve the performance of the valve and prolong the service life of the valve, and ensure the stable operation of a water supply or drainage system in an underground coal mine.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of spherical stop valve, especially to a large flow spherical stop valve for underground coal mine. BACKGROUND

[0002] The spherical stop valve is usually used on the fully mechanized hydraulic pipeline in underground coal mine, and the large flow spherical stop valve for underground coal mine is a key equipment specially adapted to the complex environment and large flow demand of coal mine. The valve body is made of high-strength and corrosion-resistant material to resist the harsh working conditions of underground dampness and impurities. The internal core component ball is rotated by 90 degrees under the drive of the valve rod to realize the conduction and cutoff of the pipeline fluid.

[0003] However, the existing spherical stop valve still has the following technical problems in actual use:

[0004] When the existing spherical stop valve is used in underground coal mine, it is laborious to operate the rotating rod due to large flow, and a large amount of physical labor of the operator is required. Especially in the frequent operation scene, it is easy to cause the operator to be tired, and the operation efficiency is low, which affects the overall operation progress of the coal mine, and even the rotating rod may be broken due to improper force, causing equipment damage and production stagnation. In addition, under the condition of large flow and high flow rate, it is easy to form a large resistance to the ball, which affects the opening and closing of the stop valve.

[0005] To this end, the present application proposes a large flow spherical stop valve for underground coal mine to solve the above technical problems. UTILITY MODEL CONTENTS

[0006] The utility model discloses a kind of large flow spherical stop valves for underground coal mine to solve the problem that the rotating rod is laborious to operate due to large flow in prior art, so that the operator is easy to be tired, and the operation efficiency is low. The spherical stop valve is easily lengthened by the structure of slide bar, connecting rod and extension handle to reduce the operation burden and improve the operation efficiency under the condition of large flow. The water flow state is uniformed by setting the spoiler before water flow enters the valve body, the valve performance and service life are improved, and the stable operation of underground coal mine water supply or drainage system is guaranteed.

[0007] To achieve the above object, the utility model provides the following technical scheme:

[0008] A kind of high flow spherical stop valve for coal mine underground, including valve body, ball is installed in the inner wall of valve body middle end, the outer wall of valve body top is fixedly connected with sleeve seat, the inner wall of sleeve seat is detachably connected with valve stem, the bottom end of valve stem penetrates sleeve seat and is connected with ball, valve stem is connected with handle by mounting assembly, the left side of handle is provided with through slot, the inner wall of through slot is slidably connected with slide rod, the left and right sides of slide rod are rotatably connected with connecting rod, the top of the side close to connecting rod is rotatably connected with extension handle, extension handle is connected with handle by fixed assembly, the front end of the outer wall of valve body is fixedly connected with ring seat one.

[0009] Further, the front side right end of ring seat one is rotatably connected with ring seat two, the ring seat two is connected with ring seat one by fixed bolt two, the inner wall of ring seat two is fixedly connected with mounting plate, the rear end of the inner wall of mounting plate is detachably connected with limit ring, a plurality of mounting grooves are formed in the rear end of the inner wall of mounting plate, a plurality of mounting grooves are connected with mounting ring by positioning assembly, the inner wall of mounting ring is fixedly connected with support rod, the front side middle end of the outer wall of support rod is mounted with spoiler.

[0010] Further, the mounting assembly includes a clamping block and a clamping groove, the clamping block is fixedly connected to the middle end of the outer wall of the valve stem, the clamping groove is formed in the front end of the top of the handle, and the clamping block and the clamping groove are detachably connected, and the top of the valve stem is threadedly connected with a fixed nut.

[0011] Further, the fixed assembly includes a positioning hole, the positioning hole is formed in the front and rear ends of the top of the extension handle, the inner wall of the positioning hole is threadedly connected with a fixed bolt one, and the fixed bolt one penetrates the extension handle and is threadedly connected with the handle.

[0012] Further, the extension handle is rotatably connected with the handle.

[0013] Further, the positioning assembly includes a limiting groove, the limiting groove is formed in the outer wall of the mounting ring, the inner wall of the limiting groove is slidably connected with a positioning block, and the positioning block is matched with the mounting groove.

[0014] Further, the bottom side of the positioning block is fixedly connected with a spring, and the bottom end of the spring is fixedly connected to the inner wall of the limiting groove.

[0015] Further, the front side of the limit ring is fitted with the rear side of the mounting ring, and the inner wall of the mounting plate is detachably connected with a sealing ring.

[0016] The utility model has the following beneficial effects:

[0017] 1. The utility model discloses a unique slide bar, connecting rod and extension handle structure, under the large flow working condition, can easily lengthen the handle, according to the lever principle, greatly reduce the operation burden, reduce the operation personnel body damage risk, improve the operation convenience and efficiency, especially in the frequent operation scene can greatly reduce the operation time, help to improve the overall operation efficiency of coal mine.

[0018] 2. The utility model discloses a unique slide bar, connecting rod and extension handle structure, under the large flow working condition, can easily lengthen the handle, according to the lever principle, greatly reduce the operation burden, reduce the operation personnel body damage risk, improve the operation convenience and efficiency, especially in the frequent operation scene can greatly reduce the operation time, help to improve the overall operation efficiency of coal mine. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 A perspective view of a large-flow ball check valve for coal mine is provided for the utility model;

[0020] Figure 2 A handle structure schematic view of a large-flow ball check valve for coal mine is provided for the utility model;

[0021] Figure 3 A through slot structure schematic view of a large-flow ball check valve for coal mine is provided for the utility model;

[0022] Figure 4 A ring seat two structure schematic view of a large-flow ball check valve for coal mine is provided for the utility model;

[0023] Figure 5 A positioning assembly structure schematic view of a large-flow ball check valve for coal mine is provided for the utility model.

[0024] LEGEND:

[0025] 1, valve body, 2, ball, 3, cover seat, 4, valve stem, 5, installation assembly, 6, handle, 7, through slot, 8, slide bar, 9, connecting rod, 10, extension handle, 11, fixed assembly, 12, ring seat one, 13, ring seat two, 14, mounting plate, 15, installation groove, 16, fixed bolt two, 17, limit ring, 18, positioning assembly, 19, mounting ring, 20, support rod, 21, spoiler, 22, sealing ring, 501, clamping block, 502, clamping groove, 503, fixed nut, 1101, fixed bolt one, 1102, positioning hole, 1801, limit groove, 1802, positioning block, 1803, spring. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present utility model.

[0027] With reference to Figures 1-3 The present utility model provides an embodiment: a large-flow ball check valve for underground coal mine, including valve body 1, the inside wall middle end of valve body 1 is installed with ball 2, the outer wall top of valve body 1 is fixedly connected with sleeve seat 3, the inner wall of sleeve seat 3 is detachably connected with valve stem 4, the bottom of valve stem 4 penetrates sleeve seat 3 and is connected with ball 2, valve stem 4 is connected with handle 6 through installation assembly 5, the left side of handle 6 is provided with through slot 7, the inner wall of through slot 7 is slidably connected with slide rod 8, the left and right sides of slide rod 8 are rotatably connected with connecting rod 9, the top of the side similar to connecting rod 9 is rotatably connected with extension handle 10, extension handle 10 is connected with handle 6 through fixing assembly 11, the outer wall front end of valve body 1 is fixedly connected with ring seat one 12.

[0028] Specifically, under the large-flow working condition of underground coal mine, the resistance is large when the ball check valve rotates, the slide rod 8 is slid, the extension handle 10 is unfolded under the action of the connecting rod 9, and then the extension handle 10 is fixed by the fixing bolt one 1101, so as to lengthen the length of the handle, according to the principle of lever, after the force arm is increased, the operator only needs to exert a small force to rotate the valve stem 4, and then drive the ball 2 to rotate, so as to realize the opening and closing of the valve. This design not only greatly reduces the operation burden, improves the convenience and efficiency of operation, but also brings many other beneficial effects. Since the operator does not need to use excessive force to rotate the valve, the risk of physical injury caused by excessive force is reduced, and the health and safety of the operator are protected. At the same time, in the scene where the valve needs to be frequently operated, reducing the operation burden means that the operator can complete the task more easily and quickly, reduces the operation time, and helps to improve the work efficiency of the whole underground coal mine operation.

[0029] In addition, under the traditional mode, large force operation of the valve may cause the wear between the valve stem 4 and the sleeve seat 3 to be intensified, and now the operation is carried out by using smaller force, which reduces the friction loss between the components, prolongs the service life of the valve components, reduces the maintenance and replacement frequency of the equipment, and thus reduces the operating cost of the coal mine enterprise. Moreover, the design of flexibly adjusting the length of the handle makes the valve convenient to operate under different flow and pressure working conditions, enhances the universality and adaptability of the valve, and can better meet the demand of the complex and changeable working environment of underground coal mine.

[0030] With reference to Figure 2 , Figure 4 andFigure 5 The ring seat two 13 is connected with the ring seat one 12 through the fixed bolt two 16, the inner wall of the ring seat two 13 is fixedly connected with the mounting plate 14, the rear end of the inner wall of the mounting plate 14 is detachably connected with the limiting ring 17, a plurality of mounting grooves 15 are formed in the rear end of the inner wall of the mounting plate 14, the mounting ring 19 is connected with the mounting grooves 15 through the positioning assembly 18, the supporting rod 20 is fixedly connected with the inner wall of the mounting ring 19, the spoiler 21 is installed on the front side of the outer wall of the supporting rod 20, the mounting assembly 5 comprises the clamping block 501 and the clamping groove 502, the clamping block 501 is fixedly connected with the middle end of the outer wall of the valve rod 4, the clamping groove 502 is formed in the front end of the top of the handle 6, the clamping block 501 and the clamping groove 502 are detachably connected, the fixed nut 503 is threadedly connected with the top of the valve rod 4, the fixing assembly 11 comprises the positioning hole 1102, the positioning hole 1102 is formed in the top of the front and rear ends of the extension handle 10, the fixed bolt one 1101 is threadedly connected with the inner wall of the positioning hole 1102, the fixed bolt one 1101 penetrates through the extension handle 10 and is threadedly connected with the handle 6, the extension handle 10 is rotatably connected with the handle 6, the positioning assembly 18 comprises the limiting groove 1801, the limiting groove 1801 is formed in the outer wall of the mounting ring 19, the positioning block 1802 is slidably connected with the inner wall of the limiting groove 1801, the positioning block 1802 is matched with the mounting groove 15, the spring 1803 is fixedly connected with the bottom side of the positioning block 1802, the bottom end of the spring 1803 is fixedly connected with the inner wall of the bottom side of the limiting groove 1801, the front side of the limiting ring 17 is attached with the rear side of the mounting ring 19, and the sealing ring 22 is detachably connected with the front end of the inner wall of the mounting plate 14.

[0031] Specifically, before the water flow enters the valve body 1, the spoiler 21 can disturb the water flow, make the water flow state more uniform, reduce the vortex and turbulence in the water flow, reduce the local resistance in the valve, improve the flow performance of the valve, and reduce the energy loss. This not only improves the stability of the valve operation, ensures that it can run continuously and efficiently under large flow conditions, but also effectively reduces the impact of unstable water flow on the valve body 1 and internal components, prolongs the service life of the valve as a whole, reduces the equipment failure rate, and ensures the stable operation of the coal mine underground water supply or drainage system.

[0032] When the spoiler 21 needs to be maintained or replaced, the ring seat two 13 is opened, and the limiting ring 17 is removed. Due to the action of the spring 1803, the positioning block 1802 can slide in the limiting groove 1801. Since the limiting ring 17 has been removed, the installation ring 19 can be quickly removed from the installation plate 14 by sliding backward. During installation, the positioning block 1802 is aligned with the installation groove 15, the positioning block 1802 is clamped into the installation groove 15 under the elastic force of the spring 1803, and then the limiting ring 17 and the ring seat two 13 are installed, and the fixed bolt two 16 is tightened, thereby achieving quick installation, greatly improving the maintenance efficiency, and reducing the maintenance cost. The design of quick installation and disassembly enables the spoiler 21 to be maintained more timely within the limited operation time in the coal mine, reduces the equipment downtime, and ensures the production continuity. At the same time, the reduced maintenance cost means that the coal mine enterprise can invest more funds into other key production links, thereby improving the overall economic benefit. Moreover, the convenient maintenance method has relatively low technical requirements for the maintenance personnel, reduces the professional training cost, and even the maintenance personnel with relatively insufficient experience can also complete the operation skillfully in a short time, thereby improving the flexibility of personnel deployment.

[0033] Working principle: when the resistance is large under large flow conditions, the slidable slide rod 8 makes the connecting rod 9 drive the extension handle 10 to expand, the extension handle 10 is fixed by the fixed bolt one 1101 to lengthen the rotating handle, the valve rod 4 is rotated according to the lever principle to drive the ball 2 to realize the opening and closing of the valve, and the operation burden is reduced. At the same time, before the water flow enters the valve body 1, the spoiler 21 disturbs the water flow to make the state uniform, reduces the local resistance of the valve, improves the working stability, and prolongs the service life. When the spoiler 21 needs to be maintained or replaced, the ring seat two 13 is opened, and the limiting ring 17 is removed. The positioning block 1802 is slid by the spring 1803, and the installation ring 19 can be quickly removed by sliding backward. During installation, the positioning block 1802 is clamped into the installation groove 15 under the elastic force of the spring 1803, the limiting ring 17 and the ring seat two 13 are installed, and the fixed bolt two 16 is tightened, thereby achieving quick installation, improving the maintenance efficiency, reducing the cost, ensuring the production continuity, and improving the flexibility of personnel deployment.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacements to some technical features, as long as they are within the spirit and principles of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A large flow ball check valve for use in a coal mine underground, characterised in that, The utility model provides a valve, including the valve body (1), the ball (2) is installed in the inside wall of valve body (1) middle end, the valve body (1) outer wall top is fixedly connected with the sleeve (3), the sleeve (3) inside wall is detachably connected with valve stem (4), the valve stem (4) bottom end penetrates sleeve (3) and is connected with ball (2), the valve stem (4) is connected with handle (6) through installation assembly (5), the left side of handle (6) is provided with through slot (7), the through slot (7) inside wall is slidably connected with slide bar (8), the left and right sides of slide bar (8) are rotatably connected with connecting rod (9), the proximal side top of connecting rod (9) is rotatably connected with extension handle (10), extension handle (10) is connected with handle (6) through fixed assembly (11), the valve body (1) outer wall front end is fixedly connected with ring seat one (12).

2. A large flow globe valve for use in a coal mine, according to claim 1, wherein: Ring seat one (12) front side right end is rotatably connected with ring seat two (13), ring seat two (13) is connected with ring seat one (12) through fixed peg two (16), ring seat two (13) inside wall is fixedly connected with mounting plate (14), the inside wall rear end of mounting plate (14) is detachably connected with limit ring (17), the inside wall rear end of mounting plate (14) is provided with a plurality of installation slot (15), a plurality of installation slot (15) are connected with mounting ring (19) through positioning assembly (18), the inside wall of mounting ring (19) is fixedly connected with support rod (20), the outside wall front side middle end of support rod (20) is installed with spoiler (21).

3. A large flow globe valve for use in a coal mine, according to claim 1, wherein: The installation assembly (5) includes a clamping block (501) and a clamping groove (502), the clamping block (501) is fixedly connected to the outer wall middle end of the valve stem (4), the clamping groove (502) is provided at the top front end of the handle (6), and the clamping block (501) is detachably connected with the clamping groove (502).

4. A large flow globe valve for use in a coal mine, according to claim 1, characterized in that: The fixed assembly (11) includes a positioning hole (1102), the positioning hole (1102) is provided at the top front and back ends of the extension handle (10), and the inside wall of the positioning hole (1102) is threadedly connected with a fixed peg one (1101), the fixed peg one (1101) penetrates the extension handle (10) and is threadedly connected with the handle (6).

5. A large flow globe valve for use in a coal mine, according to claim 1, wherein: The extension handle (10) is rotatably connected with the handle (6).

6. A large flow globe valve for use in a coal mine, according to claim 2, wherein: The positioning assembly (18) includes a limiting groove (1801), the limiting groove (1801) is provided on the outer wall of the mounting ring (19), the inside wall of the limiting groove (1801) is slidably connected with a positioning block (1802), and the positioning block (1802) is matched with the installation slot (15).

7. A large flow globe valve for use in a coal mine, according to claim 6, wherein: The bottom side of the positioning block (1802) is fixedly connected with a spring (1803), and the bottom end of the spring (1803) is fixedly connected to the inside wall bottom side of the limiting groove (1801).

8. A large flow globe valve for use in a coal mine, according to claim 2, wherein: The front side of the limit ring (17) is matched with the rear side of the mounting ring (19), and the inside wall front end of the mounting plate (14) is detachably connected with a sealing ring (22).

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