Compact ball valve

Abstract

The utility model discloses a compact ball valve, and relates to the technical field of pipeline valves. The handle comprises a first lock hole, a packing gland is installed below the handle, two second lock holes are formed in the top of the packing gland, the two second lock holes are distributed in the 90-degree included angle of the packing gland, two counter bores are formed in the top of the packing gland, two screw holes are formed in the top of the packing gland, and the two counter bores are matched with the two screw holes. The screw hole is flush with the top of the packing gland, inner hexagon screws are installed in the screw hole and the counter bore in a threaded mode, and the handle and the packing gland are connected through the inner hexagon screws. The valve rod is driven by the handle to rotate, so that the ball body rotates, the space of the middle cavity of the valve is basically filled with the padding in the valve body in the rotating process, the mass of residual media in the middle cavity can be greatly reduced, friction between the ball body and the valve seat is reduced, abrasion and leakage are reduced, and the use efficiency of the ball valve is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to pipeline valve technical field, especially, relate to a compact ball valve. BACKGROUND

[0002] The pipeline is usually used to transport medium in the industrial or civil infrastructure, and the pipeline needs to be adjusted due to the change of pressure or temperature, and the adjusting mechanism is used in the pipeline to adjust the flow, especially the ball valve, to ensure the best working condition and the safety of the environment.

[0003] The conventional ball valve is usually a ball with a through hole installed on the valve seat, and the opening and closing are realized by rotating the ball, the torque of the existing ball valve is large during opening and closing, the ball produces friction with the valve seat during rotation, the wear is serious, and leakage is easy to occur, and the ball valve needs to be frequently disassembled and assembled, which affects the use efficiency. UTILITY MODEL CONTENTS

[0004] The utility model discloses a compact ball valve, which is used to solve the above-mentioned problems.

[0005] To solve the above technical problems, the utility model is realized by the following technical scheme:

[0006] The utility model discloses a compact ball valve, which comprises a handle, the handle comprises a first lock hole, a filler gland is installed below the handle, two second lock holes are formed in the top of the filler gland, the two second lock holes are distributed on the 90 degree included angle of the filler gland, two counterbores are formed in the top of the filler gland, two screw holes are formed in the top of the filler gland, the screw holes are flush with the top of the filler gland, a hexagonal socket head cap screw is screw-connected in the screw hole and the counterbores.

[0007] The utility model further sets up, the handle is fixedly provided with an oval handle away from the first lock hole position, an opening and closing instruction O-S mark is fixedly arranged on the top of the oval handle, a valve rod is arranged below the handle, and the handle and the valve rod are connected through a screw.

[0008] The utility model further sets up, the valve rod is installed with a valve seat, a thrust washer is installed on the circumferential surface of the valve rod, and an O-shaped ring is installed on the top of the thrust washer.

[0009] The utility model further sets up, the packing gland bottom is installed with packing, the packing is at the valve rod peripheral surface, the valve rod inside is installed with static spring.

[0010] The utility model further sets up, the valve rod bottom fixedly sets up with the sphere, the sphere sets up in the valve seat inside, the sphere peripheral surface is equipped with through -hole.

[0011] The utility model further sets up, the sphere both sides symmetry sets up with left and right body, the left and right body of sphere both sides forms the pipeline chamber, the pipeline chamber is connected with the outside pipeline, the through -hole is linked together with the outside pipeline.

[0012] The utility model further sets up, the valve seat surface of sphere both sides is installed with the middle body, the left and right body and corresponding middle body are connected through bolt piece, and the packing gland is connected through the interior hexagonal screw between the middle body.

[0013] The utility model has the advantages of:

[0014] 1, the utility model discloses a handle drives the valve rod rotation, makes the sphere rotate, when the sphere rotates 90 °, the first lock hole and the second lock hole are in the coaxial position, then again through the handle and packing gland locking of locking piece, this method need not special positioning part to give the positioning, the size relation of handle, packing gland and interior hexagonal screw directly restricts its activity space, and sets up the locking hole in the corresponding position, and the compact structure makes the valve rod length shorten, not only can improve the valve rod intensity, but also can make the valve rod adopt the under -wear type structure, makes the assembly simplify.

[0015] 2, the positioning structure direct correlation piece in the utility model only has 3, and its size is very stable, after the valve assembly, the relative position between parts is basically unchanged, and the valve opening and closing has the indication mark and is all in 90 ° and rotates between, and the structure positioning is stable and the precision is high, and the handle and packing gland adopt precision casting, and the size control is very accurate, and the interior hexagonal screw is the size of standard piece and is very stable, therefore, the direct correlation parts in the positioning method all need not to be processed, improve the cost and shorten the production cycle of product.

[0016] 3, the utility model discloses a valve seat integral type and fills the space in the valve, can greatly reduce the residual medium quality in the middle cavity, and the sealing surface is higher than the cavity filling part, can avoid the problem of poor resealing caused by the large area contact of the sphere and the torque.

[0017] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described above. DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description, obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0019] Figure 1 It is a structural schematic view of a compact ball valve.

[0020] Figure 2 It is a structural schematic view of a valve seat in the present application.

[0021] Figure 3 It is a matching relationship view of a handle and a packing gland in the present application.

[0022] Figure 4 It is a structural schematic view of a packing gland in the present application.

[0023] In the drawings, the component list represented by each sign is as follows:

[0024] 1-handle, 2-packing gland, 3-internal hexagonal screw, 4-oval handle, 5-valve rod, 6-valve seat, 7-thrust washer, 8-O-ring, 9-packing, 10-static spring, 11-sphere, 12-left and right body, 13-pipe chamber, 14-middle body, 15-bolt, 16-first lock hole, 17-second lock hole. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the present application will be described clearly and completely in the following by combining with the drawings in the embodiments of the present application, obviously, the described embodiments are only some embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0026] Specific embodiment one, please refer to Figures 1-4 The present application is a compact ball valve, which comprises a handle 1, the handle 1 comprises a first lock hole 16, and a packing gland 2 is installed below the handle 1.

[0027] Two second lock holes 17 are formed in the top of the packing gland 2, the two second lock holes 17 are distributed on a 90° angle of the packing gland 2, two counterbores are formed in the top of the packing gland 2, and two screw holes are formed in the top of the packing gland 2, which are flush with the top of the packing gland 2.

[0028] Internal hexagonal screws 3 are threadedly installed in the screw holes and the counterbores, and the handle 1 and the packing gland 2 are connected through the internal hexagonal screws 3.

[0029] Specifically, the handle 1 is fixedly provided with an oval handle 4 away from the first lock hole 16, the top of the oval handle 4 is fixedly provided with an opening and closing indication O-S label, the handle 1 is provided with a valve stem 5 below, the handle 1 and the valve stem 5 are connected through screws, the valve stem 5 is installed with a valve seat 6 at the bottom, the valve stem 5 is installed with a thrust washer 7 on the side surface, and the thrust washer 7 is installed with an O-ring 8 on the top.

[0030] Further, the packing gland 2 is installed with a packing 9 at the bottom, the packing 9 is located on the side surface of the valve stem 5, the valve stem 5 is installed with an electrostatic spring 10 inside, the valve stem 5 is fixedly provided with a ball 11 at the bottom, the ball 11 is arranged inside the valve seat 6, and a through hole is formed in the side surface of the ball 11.

[0031] The operation process of the embodiment is as follows: in the initial state, the ball valve is in the closed state, that is, the through hole in the side surface of the ball 11 is not communicated with the external pipeline, the first lock hole 16 is coaxial with one of the second lock holes 17, and the handle 1 and the packing gland 2 are locked by the locking member; when the ball valve needs to be opened, the locking member is released, then the handle 1 drives the valve stem 5 to rotate, so that the ball 11 rotates, when the ball 11 rotates by 90°, the first lock hole 16 is coaxial with the other second lock hole 17, then the handle 1 and the packing gland 2 are locked by the locking member again, at this time, the through hole is communicated with the external pipeline, and the medium in the external pipeline can be discharged through the through hole in the ball 11; when the ball valve needs to be closed, the locking member is released, then the handle 1 drives the valve stem 5 to rotate in the opposite direction, so that the ball 11 rotates in the opposite direction, when the ball 11 rotates by 90° in the opposite direction, the first lock hole 16 is coaxial with the second lock hole 17 in the initial position, then the handle 1 and the packing gland 2 are locked by the locking member again, and the opening and closing of the ball valve can be completed through the above-mentioned reciprocating operation.

[0032] Specifically, the valve seat 6 is installed with a middle body 14 on the surface on both sides of the ball 11, the left and right bodies 12 and the corresponding middle bodies 14 are connected through the bolt member 15, and the packing gland 2 and the middle body 14 are connected through the internal hexagonal screw 3.

[0033] Specifically, the valve seat 6 is installed with a middle body 14 on the surface on both sides of the ball 11, the left and right bodies 12 and the corresponding middle bodies 14 are connected through the bolt member 15, and the packing gland 2 and the middle body 14 are connected through the internal hexagonal screw 3.

[0034] The operation process of the embodiment is as follows: the left and right bodies 12 and the corresponding middle bodies 14 are locked by the bolt member 15, the ball 11 is located inside the valve seat 6, when the ball 11 rotates by 90°, the through hole is communicated with the pipeline in the pipeline chamber 13, at this time, the medium in the pipeline is discharged into the through hole through the pipeline, and the side surface of the valve stem 5 is filled with the packing 7, which reduces the friction with the valve seat during the rotation of the handle 1 and the valve stem 5.

[0035] In the description of the present specification, the description referring to the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0036] The preferred embodiments of the present application disclosed above are only used to help explain the present application. The preferred embodiments do not describe all the details and limit the present application to the specific embodiments described. Obviously, according to the content of the present specification, many modifications and changes can be made. The present specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present application, so that the persons skilled in the art can well understand and utilize the present application. The present application is limited by the claims and the entire scope and equivalents thereof.

Claims

1. A compact ball valve comprising a handle (1), characterized in that: The handle (1) comprises a first lock hole (16), and a filler gland (2) is installed below the handle (1); Two second lock holes (17) are formed in the top of the filler gland (2), and the two second lock holes (17) are distributed on a 90° included angle of the filler gland (2); two counterbores are formed in the top of the filler gland (2), two screw holes are formed in the top of the filler gland (2), and the screw holes are flush with the top of the filler gland (2); Hexagon socket screws (3) are threadedly installed in the screw holes and the counterbores, and the handle (1) and the filler gland (2) are connected through the hexagon socket screws (3); An oval handle (4) is fixedly arranged at a position, away from the first lock hole (16), of the handle (1), an opening-closing indication O-S mark is fixedly arranged at the top of the oval handle (4), a valve rod (5) is arranged below the handle (1), and the handle (1) and the valve rod (5) are connected through screws; A valve seat (6) is installed at the bottom of the valve rod (5), a thrust washer (7) is installed on the peripheral side of the valve rod (5), and an O-ring (8) is installed at the top of the thrust washer (7); A spherical body (11) is fixedly arranged at the bottom of the valve rod (5), the spherical body (11) is arranged in the valve seat (6), and a through hole is formed in the peripheral side of the spherical body (11); Left and right bodies (12) are symmetrically arranged at the two sides of the spherical body (11), the left and right bodies (12) at the two sides of the spherical body (11) form a pipeline chamber (13), the pipeline chamber (13) is connected with an external pipeline, and the through hole is connected with the external pipeline.

2. A compact ball valve according to claim 1, characterized in that A filler (9) is installed at the bottom of the filler gland (2), the filler (9) is arranged on the peripheral side of the valve rod (5), and an electrostatic spring (10) is installed in the valve rod (5).

3. A compact ball valve according to claim 2, characterized in that A middle body (14) is installed on the surface of the valve seat (6) at the two sides of the spherical body (11), the left and right bodies (12) and the corresponding middle bodies (14) are connected through bolt members (15), and the filler gland (2) and the middle bodies (14) are connected through the hexagon socket screws (3).

Images