CN217234467U

CN217234467U - Control valve

Info

Publication number: CN217234467U
Application number: CN202022260052.6U
Authority: CN
Inventors: 苏宗尧; 林淑友; 范云峰
Original assignee: Zhejiang Suming Valves Co ltd
Current assignee: Zhejiang Suming Valves Co ltd
Priority date: 2020-10-12
Filing date: 2020-10-12
Publication date: 2022-08-19
Anticipated expiration: 2030-10-12

Abstract

The utility model provides a control valve belongs to valve technical field. The air-conditioning system solves the problems that the pipeline connection length is long and leakage is easy to occur in the air-conditioning system. The control valve comprises a valve body, a first ball core and a first transmission rod, wherein a slot is formed in the upper end of the first ball core, the lower end of the first transmission rod is inserted into the slot of the first ball core, the upper end of the first transmission rod extends out of the valve body and is connected with an electric actuator, the valve body comprises a body with left and right openings, a left connector and a right connector are connected to the left port of the body in a threaded mode, the right connector is connected to the right port of the body in a threaded mode, the inner wall of the body is provided with a convex ring, the inner cavity of the left end of the body is communicated with the inner cavity of the right end of the body through the central hole of the convex ring, the first ball core is located in the right end of the body, a second ball core and a second transmission rod are arranged in the left end of the body, the upper end of the second ball core is provided with a slot, the lower end of the second transmission rod extends out of the valve body and is connected with a handle. It has the advantages of good leakage-proof performance, strong working reliability and the like.

Description

Control valve

Technical Field

The utility model belongs to the technical field of the valve, relate to the control valve, especially, relate to a control valve for among the air conditioning system.

Background

The central air-conditioning system mainly adopts the technologies of variable flow, variable air volume, large temperature difference and the like to carry out energy-saving transformation on the air-conditioning device conveying system, thereby achieving the purpose of reducing the energy consumption of the air conditioner. The electric regulating valve is a core execution component in a variable flow central air-conditioning system, and can automatically regulate the opening of the valve according to the change of a target area stable control signal, so that the water flow is changed, and finally, the accurate temperature control is realized. Except for the electric regulating valve, a valve capable of being manually controlled is required to be connected in an air-conditioning pipeline system, and a pipeline can be cut off by a maintainer through manually operating the valve, so that the maintenance is convenient. At present, the valve used for the manual hole basically adopts a conventional ball valve, and then is connected with an electric regulating valve through a pipeline, so that the pipeline connection length is longer, and leakage points are more, so that the temperature regulation effect of the air conditioner is poor due to leakage.

Disclosure of Invention

The utility model aims at the above-mentioned problem that prior art exists, provide the control valve, solved the problem that pipe connection length is longer, easily leak among the air conditioning system.

The purpose of the utility model can be realized by the following technical proposal:

the control valve comprises a valve body, a ball core I and a transmission rod I which are arranged in the valve body, wherein the upper end of the ball core I is provided with a slot, the lower end of the transmission rod I is inserted into the slot of the ball core I, the upper end of the transmission rod I extends out of the valve body and is connected with an electric actuator, the control valve is characterized in that the valve body comprises a body with openings at the left end and the right end, a left joint in threaded connection with the left end opening of the body and a right joint in threaded connection with the right end opening of the body, a convex ring is arranged on the inner wall of the body, the inner cavity at the left end of the body is communicated with the inner cavity at the right end through the central hole of the convex ring, the ball core I is positioned in the right end of the body and is limited between the right joint and the convex ring, the second ball core and the transmission rod II are arranged in the left end of the body, the upper ends of the second ball cores are provided with slots, the lower ends of the second transmission rods are inserted into the slots of the second ball cores, the upper ends of the transmission rods extend out of the valve body and are connected with a handle, and the second ball cores are limited between the convex ring and the left joint, the center line of the inner hole of the first ball core is collinear with the center line of the inner hole of the second ball core.

The valve body sets up to including controlling both ends open-ended body, threaded connection left side joint and the right side joint of threaded connection at body right-hand member mouth department for ball core one can install simultaneously in a valve body with ball core two, and make ball core one and ball core two keep the location in the valve body with the help of the cooperation of bulge loop and left joint and bulge loop and right joint. And the transmission rod II, the ball core II and the handle are matched to form a manual cutting-off function, so that a maintainer can control the rotation of the ball core I when pulling the handle, and further control the opening and closing of the pipeline. Meanwhile, the transmission rod I, the ball core I and the electric actuator are matched to form an automatic flow adjusting function, the air conditioner fresh air system can automatically adjust the opening of the ball core I according to the temperature under the condition that the ball core II is opened, and the indoor temperature is kept constant. Through the arrangement, the control valve integrates the manual cut-off function and the flow automatic regulation function, the connection length of a pipeline is well shortened, leakage points are reduced, and the working performance of an air conditioner is guaranteed.

In the control valve, a first block-shaped protruding part and a second block-shaped protruding part are integrally formed on the upper side of the body, the upper end of a first transmission rod extends out of the first protruding part, the electric actuator is provided with a connecting column, the connecting column is sleeved at the upper end of the first transmission rod, the connecting column and the first block-shaped protruding part form circumferential fixation, and the first protruding part is in threaded connection with a locking nut which fixes the connecting column and the first protruding part along the axial direction of the first transmission rod; the upper end of the second transmission rod extends out of the protruding portion, one end of the handle is provided with a downward bent portion, and when the second transmission rod rotates, the side portion of the bent portion can abut against the side portion of the second protruding portion.

In the control valve, the locking nut is sleeved outside the connecting column, the outer side of the connecting column is provided with the retaining shoulder, and the retaining shoulder is abutted against the inner side wall of the locking nut.

In the control valve, a first sealing gasket is arranged between the first ball core and the convex ring and between the first ball core and the right joint, and a second sealing gasket is arranged between the second ball core and the convex ring and between the second ball core and the left joint.

In the control valve, a filter screen is arranged in the left joint.

Compared with the prior art, the control valve integrates a manual cut-off function and an automatic flow regulation function, the connection length of a pipeline is well shortened, leakage points are reduced, and the working performance of an air conditioner is guaranteed.

Drawings

FIG. 1 is a cross-sectional view of the present control valve.

In the figure, 1, a valve body; 1a, a body; 1a1, convex ring; 1a2, projection one; 1a3, projection two; 1b, a left joint; 1c, a right joint; 2. a first ball core; 3. a first transmission rod; 4. An electric actuator; 4a, connecting columns; 5. a second ball core; 6. a second transmission rod; 7. a handle; 8. a lock nut; 9. a first sealing gasket; 10. a second sealing gasket; 11. and (4) a filter screen.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, the control valve includes a valve body 1, and a ball core 2 and a transmission rod 3 both disposed in the valve body 1, wherein an insertion slot is disposed at an upper end of the ball core 2, a lower end of the transmission rod 3 is inserted into the insertion slot, and an upper end of the transmission rod 3 extends out of the valve body 1 and is connected to an electric actuator 4. The control valve further comprises a second ball core 5 and a second transmission rod 6 which are arranged in the valve body 1, wherein the upper end of the second ball core 5 is provided with a slot, the lower end of the second transmission rod 6 is inserted into the slot, and the upper end of the second transmission rod 6 extends out of the valve body 1 and is connected with a handle 7. The center line of the inner hole of the first ball core 2 is collinear with the center line of the inner hole of the second ball core 5, and the inner hole of the first ball core 2 is communicated with the inner hole of the second ball core 5. Specifically, the valve body 1 includes a body 1a with openings at left and right ends, a left joint 1b screwed at the left end of the body 1a, and a right joint 1c screwed at the right end of the body 1a, the inner wall of the body 1a has a convex ring 1a1, the left end inner cavity and the right end inner cavity of the body 1a are communicated through the central hole of the convex ring 1a1, a first ball core 2 is located in the right end of the body 1a and limited between the right joint 1c and the convex ring 1a1, and a second ball core 5 is located in the left end of the body 1a and limited between the convex ring 1a1 and the left joint 1 b. A filter screen 11 is arranged in the left joint 1 b. Wherein, a first sealing gasket 9 is arranged between the first ball core 2 and the convex ring 1a1 and between the first ball core 2 and the right joint 1 c; and a second sealing gasket 10 is arranged between the second ball core 5 and the convex ring 1a1 and between the second ball core 5 and the left joint 1 b.

Furthermore, a block-shaped first projection 1a2 and a block-shaped second projection 1a3 are integrally formed on the upper side of the body 1a, the upper end of the first transmission rod 3 extends out of the first projection 1a2, the electric actuator 4 is provided with a connecting column 4a, the connecting column 4a is sleeved on the upper end of the first transmission rod 3, the two are circumferentially fixed, and the first projection 1a2 is in threaded connection with a locking nut 8 which fixes the connecting column 4a and the first projection 1a2 along the axial direction of the first transmission rod 3; the locking nut 8 is sleeved outside the connecting column 7a, a shoulder is arranged outside the connecting column 7a, and the shoulder abuts against the inner side wall of the locking nut 8. The upper end of the second transmission rod 6 extends out of the second protruding part 1a3, one end of the handle 7 is provided with a downward bent part, and the side part of the bent part can abut against the side part of the second protruding part 1a3 when the second transmission rod 6 rotates.

The second transmission rod 6, the second ball core 5 and the handle 7 are matched to form a manual cutting-off function, so that maintenance personnel can control the rotation of the second ball core 5 when pulling the handle 7, and further control the opening and closing of the pipeline. Meanwhile, the transmission rod I3, the ball core I2 and the electric actuator 4 are matched to form an automatic flow adjusting function, and the air conditioner fresh air system can automatically adjust the opening of the ball core I2 according to the temperature under the condition that the ball core II 5 is opened, so that the indoor temperature is kept constant. Through the arrangement, the control valve integrates the manual cut-off function and the flow automatic regulation function, the connection length of a pipeline is well shortened, leakage points are reduced, and the working performance of an air conditioner is guaranteed.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The control valve comprises a valve body (1), a ball core I (2) and a transmission rod I (3) which are arranged in the valve body (1), wherein the upper end of the ball core I (2) is provided with a slot, the lower end of the transmission rod I (3) is inserted into the slot of the ball core I (2), the upper end of the transmission rod I (3) extends out of the valve body (1) and is connected with an electric actuator (4), the control valve is characterized in that the valve body (1) comprises a body (1a) with openings at the left end and the right end, a left joint (1b) in threaded connection with the left end of the body (1a) and a right joint (1c) in threaded connection with the right end of the body (1a), the inner wall of the body (1a) is provided with a convex ring (1a1), the inner cavity at the left end of the body (1a) is communicated with the inner cavity at the right end through a central hole of the convex ring (1a1), the ball core I (2) is positioned in the right end of the body (1a) and is limited between the right joint (1c) and the convex ring (1a1), this control valve is still including locating ball core two (5) and the second (6) of transfer line in body (1a) left end, ball core two (5) upper end is equipped with the slot, the lower extreme of transfer line two (6) inserts in the slot of ball core two (5), transfer line two (6) upper end is stretched out outside valve body (1) and is connected with handle (7), ball core two (5) are spacing between bulge loop (1a1) and left joint (1b), the hole central line of ball core one (2) and the hole central line of ball core two (5) are collinear mutually.

2. The control valve according to claim 1, characterized in that the upper side of the body (1a) is integrally formed with a first projection (1a2) and a second projection (1a3), the upper end of the first transmission rod (3) extends out of the first projection (1a2), the electric actuator (4) is provided with a connecting column (4a), the connecting column (4a) is sleeved on the upper end of the first transmission rod (3) and is circumferentially fixed with the first transmission rod (3), and the first projection (1a2) is externally threaded with a lock nut (8) for fixing the connecting column (4a) and the first projection (1a2) along the axial direction of the first transmission rod (3); the upper end of the second transmission rod (6) extends out of the second protruding part (1a3), one end of the handle (7) is provided with a downward bent part, and when the second transmission rod (6) rotates, the side part of the bent part can abut against the side part of the second protruding part (1a 3).

3. The control valve according to claim 2, characterized in that the locking nut (8) is sleeved outside the connecting column (4a), and a shoulder is arranged outside the connecting column (4a) and abuts against the inner side wall of the locking nut (8).

4. The control valve according to claim 1, 2 or 3, wherein a first sealing gasket (9) is arranged between the first ball core (2) and the convex ring (1a1) and between the first ball core (2) and the right joint (1c), and a second sealing gasket (10) is arranged between the second ball core (5) and the convex ring (1a1) and between the second ball core (5) and the left joint (1 b).

5. A control valve according to claim 4, characterized in that a filter screen (11) is arranged in the left joint (1 b).