CN219692312U

CN219692312U - Self-sealing telescopic ball valve

Info

Publication number: CN219692312U
Application number: CN202321005435.6U
Authority: CN
Inventors: 吴敏敏; 方忠恕; 方武; 邵素曼; 邢志礼
Original assignee: LISHUI OUYI VALVE CO Ltd
Current assignee: LISHUI OUYI VALVE CO Ltd
Priority date: 2023-04-27
Filing date: 2023-04-27
Publication date: 2023-09-15
Anticipated expiration: 2033-04-27

Abstract

The utility model discloses a self-sealing telescopic ball valve, which comprises a valve body, wherein a flow passage is formed in the valve body, a valve core is arranged at the flow passage, a valve seat is arranged on one side of the flow passage, a sealing ring is arranged on the valve seat, a compression spring is arranged on the valve body, a valve rod is arranged on the valve body, a circular concave hole is formed in the bottom end of the valve core, a buttress is arranged at the bottom end of the valve body, a self-lubricating sleeve is arranged at the top end of the buttress, a pipeline installation adjusting block is arranged on the other side of the valve seat, a medium passing hole is formed in the pipeline installation adjusting block, a group of inner direction limiting mechanisms and outer direction limiting mechanisms are arranged on the valve body, and the inner direction limiting mechanisms and the outer direction limiting mechanisms are distributed in a staggered mode. The utility model has ingenious and reasonable structural design, can adapt to the installation interval between two conveying pipes, is convenient for the connection and installation of pipelines, and is worth popularizing and applying.

Description

Self-sealing telescopic ball valve

Technical Field

The utility model relates to a high-end device, in particular to a telescopic valve capable of adjusting the length, and especially relates to a self-sealing telescopic ball valve.

Background

And the opening and closing piece (ball body) is driven by the valve rod and rotates around the axis of the ball valve.

The pipeline needs to be placed in advance when being installed, then the ball valve is installed at the required position, the effect of disconnecting the pipeline is achieved, because the pipeline is large in mass and heavy in weight, the pipeline needs to be lifted through the crane and placed on the prefabricated buttress, however, the traditional installation situation is not theoretically simple, after the pipelines on two sides are placed through the crane, when the ball valve is installed, the distance between the two pipelines is found to be larger than the length of the valve body of the ball valve or smaller than the length of the valve body of the ball valve, at the moment, the ball valve is installed after the distance between the pipelines is adjusted through the crane again, and the practical operation is very troublesome, time-consuming and labor-consuming.

The Chinese patent No. 209414675U discloses an anti-blocking hard sealing ball valve, which comprises a valve body, wherein a ball body is arranged in the valve body, a valve rod is connected to the ball body, an operating mechanism is connected to the upper end of the valve rod, a single-side valve seat is arranged at a medium inlet of a flow channel in the valve body, the ball body is in sealing fit with the single-side valve seat, an elastic element is arranged between the single-side valve seat and the valve body, the elastic element pushes the single-side valve seat to be in sealing fit with the ball body, a scraper structure is further arranged on the single-side valve seat, and the scraper structure is in contact fit with the surface of the ball body to remove impurities adhered to the ball surface so as to ensure that a sealing surface is not damaged; the valve body of the ball valve is in an integral fixed mode, when the length between two pipelines is not matched with the valve body of the ball valve, the ball valve cannot be installed, and the distance between the two pipelines can be adjusted only by lifting the pipelines again through a crane, so that the length of the valve body is met, and the ball valve is very troublesome and has high installation cost.

Disclosure of Invention

The utility model aims to solve the defects of the prior art, and provides the self-sealing telescopic ball valve capable of freely adjusting the length of the ball valve, so that the requirement of conveniently adapting to the installation of the ball valve without adjusting the pipeline during the installation of the pipeline is met.

The utility model solves the technical problems by adopting the technical scheme that: the self-sealing telescopic ball valve comprises a valve body, wherein a flow passage is formed in the valve body, a valve core is arranged at the flow passage, a valve seat spliced on the valve body is arranged on one side of the flow passage, a third O-shaped sealing ring is arranged on the valve seat, a compression spring for driving the sealing ring to be tightly pressed on the spherical surface of the valve core is arranged on the valve body, a valve rod for driving the valve core to rotate is arranged on the valve body, a circular concave hole is formed in the bottom end of the valve core, a splicing hole is formed in the bottom end of the valve body, a buttress is fixed at the splicing hole through a fastener, a self-lubricating sleeve is sleeved at the top end of the buttress, the valve core is matched with the self-lubricating sleeve through the circular concave hole, a pipeline installation adjusting block spliced on the valve body is arranged at the other side of the valve seat, medium passing holes are formed in the pipeline installation adjusting block, a group of internal direction limiting mechanisms and external direction limiting mechanisms uniformly distributed along the center of the pipeline installation adjusting block are arranged on the valve body, and the internal direction limiting mechanisms and the external direction limiting mechanisms are distributed in a staggered manner; the internal direction limiting mechanism comprises an inserting rod inserted in the valve body, one end of the inserting rod is fixedly provided with a first threaded rod which is connected with the pipeline installation adjusting block in a threaded manner, a first fastening nut is fixed on the first threaded rod, the other end of the inserting rod is fixedly provided with a second threaded rod which extends out of the valve body, and the second threaded rod is connected with a second fastening nut in a threaded manner; the outer direction limiting mechanism comprises a bolt which is connected with the valve body in a threaded manner, an ejector rod which is propped against the end face of the pipeline installation adjusting block is fixed at the inner end of the bolt, and a third compression nut which is connected with the bolt in a threaded manner is arranged at the outer side of the valve body. The valve body and the flow channel are used for passing the medium; the valve core has the function of controlling the opening and closing of the pipeline; the valve seat, the sealing ring and the compression spring are arranged on one side, so that the valve core can be sealed, leakage is avoided, when the sealing ring is worn down, the compression spring has the function of driving the valve seat to move to a compensation position, the service life of the sealing ring is prolonged, the cost is reduced, the valve seat on one side is sealed, the resistance of the valve core in rotation can be reduced, compared with a double-side valve seat sealing ball valve, the resistance of the valve core can be reduced by more than 30%, and the valve rod drives the valve core to rotate more labor-saving; the circular concave holes and the buttresses have the effects that the valve core can be supported in the longitudinal direction, so that the problems that excessive weight is extruded on the lower part of the sealing ring, the lower part of the sealing ring is worn too quickly, the sealing ring needs to be replaced frequently, and the cost is increased are avoided; the self-lubricating sleeve has the function of greatly reducing the friction force between the valve core and the buttress, thereby reducing the friction resistance when the valve rod drives the valve core to rotate, and the self-lubricating sleeve is made of tin bronze material; the pipeline installation adjusting block, the medium passing hole, the inner direction limiting mechanism and the outer direction limiting mechanism have the functions that the position of the pipeline installation adjusting block can be adjusted, so that the length of the valve body can be controlled, and the distance between two pipelines can be adapted (as shown in figure 6); the inner direction limiting mechanism can limit the inward movement of the pipeline installation adjusting block, the outer direction limiting mechanism can limit the outward movement of the pipeline installation adjusting block, and further the movement of the pipeline installation adjusting block on the valve body can be limited; the third O-ring here has the effect of preventing leakage of medium through the valve seat when the valve element is in the closed flow path condition.

Further perfecting, the side end of the valve seat is provided with a dovetail slot which is arranged on the valve body, the valve seat is fixedly provided with a dovetail block which is in plug-in fit with the dovetail slot, the dovetail slot is provided with a first O-shaped sealing ring which is matched with the dovetail block, the compression spring is provided with a second O-shaped sealing ring which is arranged on the valve body, and a third O-shaped sealing ring is arranged between the first O-shaped sealing ring and the second O-shaped sealing ring. The dovetail slot, the dovetail block, the first O-shaped sealing ring and the second O-shaped sealing ring have the functions of improving the stability of the valve seat during movement, preventing media from entering into contact with the compression spring, and avoiding the too fast corrosion and rust of the compression spring to reduce the elasticity of the compression spring.

Further perfecting, the valve seat is provided with a grease injection channel which is transversely communicated with the flow channel, an inlet of the grease injection channel is positioned at the dovetail block, an outlet of the grease injection channel is positioned at the side end of the valve core, and a grease injection valve which is communicated with the grease injection channel is fixed on the valve body. The grease injection channel and the grease injection valve have the functions that when the emergency ball valve leaks and cannot be controlled, the grease injection valve is used for injecting the accelerator, and the cavity between the valve core and the valve seat is filled with the accelerator through the grease injection channel, so that the emergency plugging function is realized.

Further perfecting, the valve body comprises a cylindrical valve block, the side end of the cylindrical valve block is fixed with a left valve block through a fastener, the right side of the cylindrical valve block is fixed with a round matching block, the inner hole of the round matching block is smaller than that of the cylindrical valve block, and the cylindrical valve block and the round matching block are matched with a pipeline installation adjusting block in a plugging manner. The cylinder valve block, the left valve block and the round matching block are adopted in the valve body, so that the production cost can be reduced, the valve core can be conveniently installed, the traditional valve body is in a casting mode and is not friendly to the environment, and the valve body is installed in a split mode, so that the cylinder valve block, the left valve block and the round matching block can be turned out by the raw materials, the cost is greatly reduced, the environmental pollution is less, and the large-area popularization is facilitated.

The beneficial effects of the utility model are as follows:

1) The length of the ball valve can be freely adjusted and controlled;

2) Compared with the conventional double-side valve seat ball valve, the torque of the ball valve is reduced by more than 30%, and the valve core is more labor-saving to rotate and is convenient to operate;

3) The valve body adopts a combined form, so that the cost is reduced, and the valve core is convenient to install;

4) The round matching block is designed on the cylindrical valve block, so that the pipeline installation adjusting block can be clamped at the cylindrical valve block and cannot fly out of the cylindrical valve block by the pressure of a medium, and therefore the anti-flying structure of the pipeline installation adjusting block is designed, and the safety of the ball valve in use is guaranteed.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an enlarged partial view of area A of FIG. 1;

FIG. 3 is an enlarged partial view of region B of FIG. 1;

FIG. 4 is an enlarged partial view of region C of FIG. 1;

FIG. 5 is a view from perspective D of FIG. 1;

fig. 6 is a schematic diagram of the operation of the present utility model.

Reference numerals illustrate: the valve comprises a valve body 1, a runner 1-1, a dovetail slot 1-2, a cylindrical valve block 1a, a circular matching block 1a-1, a left valve block 1b, a plug hole 1c, a valve core 2, a circular concave hole 2-1, a valve seat 3, a dovetail block 3-1, a grease injection channel 3-2, a sealing ring 4, a compression spring 5, a valve rod 6, a buttress 7, a self-lubricating sleeve 8, a pipeline installation adjusting block 9, a medium passing hole 9-1, an inner direction limiting mechanism 10, a plug rod 10-1, a first threaded rod 10-2, a first fastening nut 10-3, a second threaded rod 10-4, a second fastening nut 10-5, an outer direction limiting mechanism 11, a bolt 11-1, a push rod 11-2, a third compression nut 11-3, a first O-shaped sealing ring 12, a second O-shaped sealing ring 13, a third O-shaped sealing ring 14, a grease injection valve 15 and a pipeline 16.

Detailed Description

The utility model is further described below with reference to the accompanying drawings:

referring to the drawings: the self-sealing telescopic ball valve comprises a valve body 1, wherein a flow channel 1-1 is arranged on the valve body 1, a valve core 2 is arranged at the position of the flow channel 1-1, a valve seat 3 spliced on the valve body 1 is arranged on one side of the flow channel 1-1, a third O-shaped sealing ring 14 is arranged on the valve seat 3, a sealing ring 4 is arranged on the valve seat 3, a compression spring 5 which drives the sealing ring 4 to be tightly pressed on the spherical surface of the valve core 2 is arranged on the valve body 1, a valve rod 6 which drives the valve core 2 to rotate is arranged on the valve body 1, a circular concave hole 2-1 is arranged at the bottom end of the valve core 2, a splicing hole 1c is arranged at the bottom end of the valve body 1, a buttress 7 is fixedly arranged at the splicing hole 1c through a fastener, a self-lubricating sleeve 8 is sleeved at the top end of the buttress 7, the valve core 2 is matched at the self-lubricating sleeve 8 through the circular concave hole 2-1, a pipeline installation regulating block 9 spliced on the other side of the valve seat 3 is arranged, a medium through hole 9-1 is arranged on the pipeline installation regulating block 9, a group of inner direction limiting mechanisms 10 and outer direction limiting mechanisms 11 which are arranged along the center of the pipeline installation regulating block 9 are distributed uniformly, and the medium spacing mechanisms are staggered between each inner direction limiting mechanism 10 and each outer direction limiting mechanism 11; the internal direction limiting mechanism 10 comprises an inserting rod 10-1 inserted at the valve body 1, a first threaded rod 10-2 in threaded connection with the pipeline installation adjusting block 9 is fixed at one end of the inserting rod 10-1, a first fastening nut 10-3 is fixed on the first threaded rod 10-2, a second threaded rod 10-4 extending out of the valve body 1 is fixed at the other end of the inserting rod 10-1, and a second fastening nut 10-5 is in threaded connection with the second threaded rod 10-4; the external direction limiting mechanism 11 comprises a bolt 11-1 in threaded connection with the valve body 1, an ejector rod 11-2 propped against the end face of the pipeline installation adjusting block 9 is fixed at the inner end of the bolt 11-1, and a third compression nut 11-3 in threaded connection with the bolt 11-1 is arranged at the outer side of the valve body 1.

The side end of the valve seat 3 is provided with a dovetail slot 1-2 which is arranged on the valve body 1, the valve seat 3 is fixedly provided with a dovetail block 3-1 which is in plug-in fit with the dovetail slot (1-2), the dovetail slot 1-2 is provided with a first O-shaped sealing ring 12 which is matched with the dovetail block 3-1, the upper part of the compression spring 5 is provided with a second O-shaped sealing ring 13 which is arranged on the valve body 1, and a third O-shaped sealing ring 14 is arranged between the first O-shaped sealing ring 12 and the second O-shaped sealing ring 13.

The valve seat 3 is provided with a grease injection channel 3-2 which is transversely communicated with the runner 1-1, an inlet of the grease injection channel 3-2 is positioned at the dovetail block 3-1, an outlet of the grease injection channel 3-2 is positioned at the side end of the valve core 2, and the valve body 1 is fixedly provided with a grease injection valve 15 which is communicated with the grease injection channel 3-2.

The valve body 1 comprises a cylindrical valve block 1a, a left valve block 1b is fixed at the side end of the cylindrical valve block 1a through a fastener, a circular matching block 1a-1 is fixed at the right side of the cylindrical valve block 1a, the inner hole of the circular matching block 1a-1 is smaller than that of the cylindrical valve block 1a, and the circular matching block 1a-1 is matched with a pipeline installation adjusting block 9 in a plugging manner.

The working principle of the utility model is as follows: digging a ditch, manufacturing a buttress on the ditch, when two pipelines 16 are placed on the buttress by a crane, finding that the distance between the two pipelines 16 is larger than the length of the valve body 1, and adjusting the distance between the two pipelines 16 without using the crane, only needing to unscrew a third gland nut 11-3 at each external direction limiting mechanism 11 by a tool, screwing a bolt 11-1 outwards, so that a moving gap flows between the end face of a push rod 11-2 and the end face of a pipeline installation adjusting block 9, screwing a second fastening nut 10-5 on each internal direction limiting mechanism 10, driving a second threaded rod 10-4 to move outwards, driving the pipeline installation adjusting block 9 to move outwards, so that the right end face of the pipeline installation adjusting block 9 and the right end face of the pipeline 16 are welded together, and finally, pushing the push rod 11-2 on the end face of the pipeline installation adjusting block 9 by the tool and screwing the third gland nut 11-3;

when the distance between the two pipelines 16 is smaller than the length of the valve body 1, the crane is not required to be used for adjusting the distance between the two pipelines 16, only the second fastening nuts 10-5 on the limiting mechanisms 10 in all the inner directions are required to be screwed by a tool, so that the inserted rods 10-1 are driven to move inwards, the pipeline installation adjusting blocks 9 are driven to move inwards, the distance between the valve body 1 and the distance between the two pipelines 16 are matched and placed between the two pipelines 16, then the pipeline installation adjusting blocks 9 and the pipelines 16 on the right side are welded and fixed together, and finally the bolts 11-1 on the limiting mechanisms 11 in all the outer directions are screwed, so that all the ejector rods 11-2 are pushed against the end faces of the pipeline installation adjusting blocks 9, and the pipeline installation adjusting blocks 9 are prevented from moving outwards;

the ball valve is ingenious and reasonable in structural design, can adapt to the installation interval between two conveying pipes, is convenient for connection and installation of the ball valve between two pipelines, and is worthy of popularization and application.

While the utility model has been shown and described with reference to a preferred embodiment, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the scope of the utility model.

Claims

1. The utility model provides a self sealss formula telescopic ball valve, includes valve body (1), it has runner (1-1), characterized by to open on valve body (1): the utility model discloses a valve body, including valve body (1-1), valve body (1) and valve seat (1), valve core (2) are installed in runner (1-1) department, runner (1-1) unilateral is equipped with disk seat (3) of grafting on valve body (1), install third O type sealing washer (14) on disk seat (3), install sealing washer (4) on disk seat (3), install compression spring (5) that drive sealing washer (4) and compress tightly on case (2) sphere on valve body (1), install valve rod (6) that drive case (2) pivoted on valve body (1), circular shrinkage pool (2-1) are opened to case (2) bottom, valve body (1) bottom is fixed with buttress (7), buttress (7) top has cup jointed self-lubricating sleeve (8), valve core (2) are in through circular shrinkage pool (2-1) cooperation self-lubricating sleeve (8) department, the opposite side of disk seat (3) is equipped with pipeline installation regulating block (9) of grafting on valve body (1), it has medium through hole (9-1) to open on pipeline installation regulating block (9), install spacing mechanism (10) in a set of direction of installing on valve body (1) and setting up to outside direction (10), the inner direction limiting mechanisms (10) and the outer direction limiting mechanisms (11) are distributed in a staggered manner;

the internal direction limiting mechanism (10) comprises an inserting rod (10-1) inserted in the valve body (1), a first threaded rod (10-2) in threaded connection with the pipeline installation adjusting block (9) is fixed at one end of the inserting rod (10-1), a first fastening nut (10-3) is fixed on the first threaded rod (10-2), a second threaded rod (10-4) extending out of the valve body (1) is fixed at the other end of the inserting rod (10-1), and a second fastening nut (10-5) is in threaded connection with the second threaded rod (10-4);

the outer direction limiting mechanism (11) comprises a bolt (11-1) which is connected onto the valve body (1) in a threaded mode, an ejector rod (11-2) which is propped against the end face of the pipeline installation adjusting block (9) is fixed at the inner end of the bolt (11-1), and a third compression nut (11-3) which is connected onto the bolt (11-1) in a threaded mode is arranged on the outer side of the valve body (1).

2. The self-sealing telescopic ball valve according to claim 1, wherein: the side of disk seat (3) is equipped with and opens dovetail slot (1-2) on valve body (1), be fixed with on disk seat (3) with dovetail slot (1-2) grafting complex forked tail piece (3-1), install on forked tail slot (1-2) with forked tail piece (3-1) complex first O type sealing washer (12), compression spring (5) top is equipped with second O type sealing washer (13) of installing on valve body (1), third O type sealing washer (14) are installed between first O type sealing washer (12) and second O type sealing washer (13).

3. The self-sealing telescopic ball valve according to claim 2, characterized in that: the valve seat (3) is provided with a grease injection channel (3-2) which is transversely communicated with the runner (1-1), an inlet of the grease injection channel (3-2) is positioned at the dovetail block (3-1), an outlet of the grease injection channel (3-2) is positioned at the side end of the valve core (2), and a grease injection valve (15) which is communicated with the grease injection channel (3-2) is fixed on the valve body (1).

4. The self-sealing telescopic ball valve according to claim 1, wherein: the valve body (1) comprises a cylindrical valve block (1 a), a left valve block (1 b) is fixed at the side end of the cylindrical valve block (1 a) through a fastener, and the pipeline installation adjusting block (9) is in plug-in fit with the cylindrical valve block (1 a).