CN216643442U

CN216643442U - Adjustable quick joint for opening and closing valve core of refrigeration equipment

Info

Publication number: CN216643442U
Application number: CN202123042954.3U
Authority: CN
Inventors: 魏佐联; 周水根
Original assignee: Zhejiang Hongsen Machinery Co ltd
Current assignee: Zhejiang Hongsen Machinery Co ltd
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2022-05-31
Anticipated expiration: 2031-12-06

Abstract

The utility model provides an adjustable quick-operation joint for refrigeration plant valve inside switching, includes the joint body, the joint body constitute by the straight tube way and the branch pipeline of mutual intercommunication, straight tube way one end threaded connection has the hand wheel, the hand wheel center is connected with first ejector pin, pressure spring and pipe box have been cup jointed respectively to first ejector pin periphery, the pipe box inner wall is equipped with the bulge loop, the first sealing washer of the first ejector pin upper step post of cooperation has been inlayed to the bulge loop middle, bulge loop one side butt pressure spring one end, the turn-ups of opposite side cooperation step post, pressure spring other end butt joint connects body inner wall, first ejector pin body of rod diameter be less than step post diameter. On one hand, the opening and closing performance of the adjustable quick connector for the refrigerant is realized by adopting the closed matching relation between the step column and the first sealing ring, and on the other hand, the movement depth of the first ejector rod is controlled by the hand wheel screw, so that the opening degree of a valve core matched with the first ejector rod is controlled, and the technical purpose of quick adjustment is achieved.

Description

Adjustable quick joint for opening and closing valve core of refrigeration equipment

Technical Field

The utility model relates to a quick connector, in particular to an adjustable quick connector for opening and closing a valve inside of refrigeration equipment.

Background

The quick connector is a part frequently used in the process of adding or discharging the refrigerant in the refrigeration equipment, and the part needs to have the functions of connecting and disconnecting with the refrigeration equipment and can open and close a valve inside on the refrigeration equipment. The existing quick connectors are mostly in threaded connection with valve core connectors, and the technical scheme of controlling refrigerant pipelines by opening and closing ball valves is adopted, the existing threaded connection of the scheme does not have the performance of quick connection, and the problem that the threads are damaged frequently causes the occurrence of equipment connection faults, on the other hand, the valve core connectors lack the size adjusting capacity for opening and closing the valve cores, namely, the valve cores are directly filled and cannot adjust the flow, and how to realize the adjustment of the opening sizes of the valve cores and the faster connecting connectors are objects to be researched by technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

The utility model provides an adjustable quick connector which is high in connection speed and adjustable in flow and is used for opening and closing a valve core of refrigeration equipment.

The utility model provides an adjustable quick-operation joint for refrigeration plant valve inside switching, includes the joint body, the joint body constitute by the straight tube way and the branch pipeline of mutual intercommunication, straight tube way one end threaded connection has the hand wheel, the hand wheel center is connected with first ejector pin, pressure spring and pipe box have been cup jointed respectively to first ejector pin periphery, the pipe box inner wall is equipped with the bulge loop, the first sealing washer of the first ejector pin upper step post of cooperation has been inlayed to the bulge loop middle, bulge loop one side butt pressure spring one end, the turn-ups of opposite side cooperation step post, pressure spring other end butt joint connects body inner wall, first ejector pin body of rod diameter be less than step post diameter. The adjustable quick connector adopts a hand wheel thread structure to realize the front and back movement of the first ejector rod, the front and back driving of the first ejector rod is matched to control the opening and closing and the amplitude of a valve core, and the pipe sleeve structure is matched with the upper step column of the first ejector rod to realize the opening and closing of the adjustable quick connector, so that the opening and closing control performance of the adjustable quick connector on a refrigerant is realized.

The other end of the straight pipeline is connected with a quick connector. The quick connector comprises a movable connector, the movable connector is sleeved on the outer wall of the end portion of the straight pipeline, a limiting protrusion is arranged on the inner wall of the movable connector, one side of the limiting protrusion is embedded in a clamp spring of the outer wall of the end portion of the straight pipeline in a matched mode, a second spring is arranged between the other side of the limiting protrusion and the straight pipeline, a limiting steel ball is matched on the inner side face of the limiting protrusion, the limiting steel ball is installed in a mounting hole of the pipe wall of the end portion of the straight pipeline, the quick insertion connection of the connector body with the valve core connector is achieved through the limiting steel ball, and the limiting steel ball is clamped with a clamp ring on the outer wall of the valve core connector.

And 2 or more than 2 third sealing rings which are arranged at intervals are arranged between the outer wall of the pipe sleeve and the inner wall of the straight pipeline so as to improve the sealing performance. And when the valve core is in an open state, one of the 2 third sealing rings is positioned between the outer wall of the pipe sleeve and the inner wall of the straight pipeline, and the other one is positioned between the inner wall of the straight pipeline and the outer wall of the valve core joint, so that the overall sealing performance in a dynamic process is achieved, and the refrigerant is prevented from leaking.

The valve core connector is internally provided with a valve core, a valve rod of the valve core is connected with a first ejector rod in a matching mode, and the opening of the valve rod of the valve core is controlled through the forward and backward movement distance of the first ejector rod.

The utility model adopts a hand wheel thread structure to realize the forward and backward movement of the first ejector rod, so that the forward and backward driving of the first ejector rod is matched with the control of the opening and closing and the amplitude of the valve core, and the pipe sleeve structure is matched with the upper step column of the first ejector rod to realize the opening and closing of the adjustable quick connector, so that the opening and closing control performance of the adjustable quick connector on the refrigerant is realized.

Drawings

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

FIG. 1 is a schematic cross-sectional view of an adjustable quick connector for opening and closing a valve inside of a refrigeration device according to the present invention;

FIG. 2 is a cross-sectional view of the adjustable quick connector of the present invention in a closed position when connected to a valve core connector;

FIG. 3 is a cross-sectional view of the adjustable quick connector of the present invention in an open position when connected to a valve core connector.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Referring to fig. 1-3, an adjustable quick coupling for opening and closing a valve inside of a refrigeration equipment comprises a coupling body 12, the coupling body 12 is composed of a straight pipe and a branch pipe 11 which are communicated with each other, one end of the straight pipe is connected with a hand wheel 1 through a thread, a first ejector rod 14 is connected to the center of the hand wheel 1, a pressure spring 3 and a pipe sleeve 9 are respectively sleeved on the periphery of the first ejector rod 14, a convex ring 21 is arranged on the inner wall of the pipe sleeve 9, a first sealing ring 2 matched with a step column 13 on the first ejector rod is embedded in the middle of the convex ring 21, one side of the convex ring 21 abuts against one end of the pressure spring 3, and the other side of the convex ring cooperates with a flanging of the step column 13 to form a valve core sealing structure. The other end of the pressure spring 3 is connected with the inner wall of the connector body in a propping mode, and the diameter of the first ejector rod body is smaller than that of the step column. The adjustable quick connector drives the first ejector rod 14 to move forwards through the rotation of the hand wheel 1, so that the valve rod 18 in the valve core 17 moves forwards and backwards, and the opening and closing of the adjustable quick connector are controlled while the opening and closing amplitude of the valve core is controlled.

In order to realize the quick connection performance, the other end of the straight pipeline is connected with a quick connector. The quick connector comprises a movable connector 5, the movable connector 5 is sleeved on the outer wall of the end portion of the straight pipeline, a limiting protrusion 20 is arranged on the inner wall of the movable connector 5, one side of the limiting protrusion 20 is matched with a clamp spring 30 embedded in the outer wall of the end portion of the straight pipeline, a second spring 4 is arranged between the other side of the limiting protrusion 20 and the straight pipeline, a limiting steel ball 6 is matched with the inner side surface of the limiting protrusion 20, and the limiting steel ball 6 is installed in a mounting hole 7 of the pipe wall of the end portion of the straight pipeline. The quick connection process comprises the following steps: the movable joint 5 moves backwards manually, the limiting steel balls 6 can move outwards, the joint body 12 is inserted with the valve core joint 16, the limiting steel balls 6 are connected with the snap ring 15 entering the outer wall of the valve core joint 16 in a clamping mode, then the movable joint 5 resets under the action of the second spring 4, and the limiting protrusions 20 limit the limiting steel balls 6 to move outwards to achieve the quick connection performance of the quick joint and the valve core joint 16.

In order to realize dynamic sealing, 2 or more than 2 third sealing rings 10 which are arranged at intervals are arranged between the outer wall of the pipe sleeve 9 and the inner wall of the straight pipeline. And 2 third sealing rings 10 which are arranged at intervals, wherein one sealing ring is positioned between the outer wall of the pipe sleeve 9 and the inner wall of the straight pipeline and the other sealing ring is positioned between the inner wall of the straight pipeline and the outer wall of the valve core joint 16 in the opening state of the valve core 17, so that the technical effect of dynamic sealing is achieved.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. An adjustable quick-operation joint for the opening and closing of a refrigeration equipment valve core, comprising a joint body (12), characterized in that: the connector body (12) constitute by the straight pipeline and the pipeline (11) that communicate each other, straight pipeline one end threaded connection has hand wheel (1), hand wheel (1) central connection has first ejector pin (14), pressure spring (3) and pipe box (9) have been cup jointed respectively to first ejector pin (14) periphery, pipe box (9) inner wall is equipped with bulge loop (21), first sealing washer (2) of first ejector pin (14) upper step post (13) of cooperation have been inlayed in the middle of bulge loop (21), bulge loop (21) one side butt pressure spring (3) one end, the turn-ups of opposite side cooperation step post (13), pressure spring (3) other end butt connector body inner wall, first ejector pin body of rod diameter of rod be less than step post diameter.

2. The adjustable quick connector for opening and closing the valve core of the refrigeration equipment as claimed in claim 1, wherein: the other end of the straight pipeline is connected with a quick connector.

3. The adjustable quick connector for opening and closing the valve core of the refrigeration equipment as claimed in claim 2, wherein: quick-operation joint include movable joint (5), movable joint (5) cover in straight tube way tip outer wall, movable joint (5) inner wall is equipped with spacing arch (20), spacing arch (20) one side cooperation inlays jump ring (30) in straight tube way tip outer wall, be equipped with second spring (4) between spacing arch (20) opposite side and the straight tube way, spacing arch (20) medial surface cooperation has spacing steel ball (6), spacing steel ball (6) are installed in mounting hole (7) of straight tube way tip pipe wall.

4. The adjustable quick connector for opening and closing the valve core of the refrigeration equipment as claimed in claim 1, wherein: and 2 or more than 2 third sealing rings (10) which are arranged at intervals are arranged between the outer wall of the pipe sleeve (9) and the inner wall of the straight pipeline.

5. The adjustable quick connector for opening and closing the valve core of the refrigeration equipment as claimed in claim 1, wherein: the valve core connector (16) is inserted into the connector body (12), and the limiting steel ball (6) is clamped and connected with a clamping ring (15) on the outer wall of the valve core connector (16).

6. The adjustable quick connector for opening and closing the valve core of the refrigeration equipment as claimed in claim 5, wherein: the valve core joint (16) is internally provided with a valve core (17), and a valve rod (18) of the valve core (17) is matched and connected with the first ejector rod (14).

7. The adjustable quick connector for opening and closing the valve core of the refrigeration equipment as claimed in claim 4, wherein: and when the valve core (17) is in an open state, one of the 2 third sealing rings (10) which are arranged at intervals is positioned between the outer wall of the pipe sleeve (9) and the inner wall of the straight pipeline, and the other is positioned between the inner wall of the straight pipeline and the outer wall of the valve core joint (16).