CN210009388U

CN210009388U - Cross valve of drainage system

Info

Publication number: CN210009388U
Application number: CN201821965532.9U
Authority: CN
Inventors: 龙经; 王宏波; 宋晴晴; 王华鹏
Original assignee: Shandong Weigao Group Medical Polymer Co Ltd
Current assignee: Shandong Weigao Group Medical Polymer Co Ltd
Priority date: 2018-11-27
Filing date: 2018-11-27
Publication date: 2020-02-04
Anticipated expiration: 2028-11-27

Abstract

The utility model provides a drainage system cross valve, including valve body and case, the valve body comprises vertical pipe and horizontal pipe, horizontal pipe intersects and links as an organic wholely with vertical pipe cross, the case cooperatees with the inner chamber of horizontal pipe, is provided with the annular groove on the well anterior lateral wall of case, the both ends internal surface of horizontal pipe is equipped with annular limiting groove, is equipped with ring type seal in the annular limiting groove, the both ends of case are equipped with first plugging device, second plugging device. The beneficial effects of the utility model are that owing to adopt above-mentioned technical scheme, this technical scheme has simple structure, sealed effectual, and when service environment is more abominable, under static and motion state, guarantee that the seepage phenomenon can not appear in sealed department, the liquid leakage risk that brings when can effectively reducing the operation to the operator.

Description

Cross valve of drainage system

Technical Field

The utility model relates to the field of medical equipment, especially, relate to drainage system's cross valve.

Background

The liquid discharge valve of the liquid storage bag in the existing drainage system is mainly a cross valve, and is widely used due to the simple structure and low cost. However, in use, when the switch valve is repeatedly pushed left and right and is influenced by the temperature of the external environment, a small amount of liquid in the liquid storage bag is easy to overflow from the transverse pipe of the cross valve when the switch valve is pushed left and right, and the liquid discharged by a patient often contains germs, so that hands are easy to be dirtied, and sanitary trouble is brought to an operator.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a simple structure, leakproofness are good, under static and motion state, the cross valve of the excessive condition of leaking can not appear in sealed department.

The technical scheme of the utility model is that: a cross valve of a drainage system comprises a valve body and a valve core, wherein the valve body is composed of a vertical pipe and a transverse pipe, the transverse pipe and the vertical pipe are crossed and connected into a whole, the upper end of the vertical pipe is a liquid inlet, the lower end of the vertical pipe is a liquid outlet, the inner cavity of the transverse pipe is communicated with the liquid inlet and the liquid outlet of the vertical pipe respectively, the valve core is matched with the inner cavity of the transverse pipe, the valve core is pushed forwards and backwards in the inner cavity of the transverse pipe along the limited direction, the valve core can be arranged in the inner cavity of the transverse pipe, an annular groove is formed in the side wall of the middle front part of the valve core, annular limiting grooves are formed in the inner surfaces of two ends of the transverse pipe, annular sealing rings are arranged in the annular limiting grooves, plugging devices are arranged at two ends of the valve core, and are a first plugging device and a second.

When the valve handle is pulled out backwards or the valve core is pushed by the extending end in front of the valve core and pulled to the rear end of the inner cavity of the transverse pipe, the annular groove is communicated with the liquid inlet and the liquid outlet simultaneously, and the liquid flow channel is opened; when the valve handle is pressed forwards and the valve core is pushed to the front end of the inner cavity of the transverse pipe, the annular groove is staggered with the liquid inlet and the liquid outlet, and the liquid flow channel is closed.

The length of the valve core is greater than that of the transverse pipe of the valve body, and the front end of the valve core can extend out of the transverse pipe of the valve body, so that the valve handle can be pressed forwards, the valve handle can be pulled backwards or the valve core can be pushed and extruded from the extending end in front of the valve core, the valve core slides in the transverse pipe, when the valve core is pushed to the front end of the inner cavity of the transverse pipe, the annular groove is communicated with the liquid inlet and the liquid outlet simultaneously, and at the moment, liquid in the drainage bag can flow out; when the valve core is pushed to the rear end of the inner cavity of the transverse pipe, the annular groove is staggered with the liquid inlet and the liquid outlet.

Further limiting, the section of the annular sealing ring is Y-shaped, the annular sealing ring is provided with an annular upper end surface and a lower end surface opposite to the annular upper end surface, the lower end surface is provided with an annular groove, the inner side of the annular groove of the lower end surface is provided with an inner lip part, the outer side of the annular groove of the lower end surface is provided with an outer lip part, the inner side of the oil seal body close to the upper end surface is provided with an annular convex ring,

under the static sealing or motion state, the convex ring is elastically deformed to generate contact pressure on the sealing contact surface, the contact pressure is greater than the internal pressure of a sealed medium, a liquid flow channel is blocked, and at the moment, liquid in the drainage bag cannot flow out, so that leakage is avoided.

Further defined, the cross section of the protruding ring is ridge-shaped, and under static sealing or motion state, contact pressure is concentrated on the top of the protruding ring contacted with the contact surface due to the contact pressure on the sealing contact surface.

Further, the ratio of the height of the center line of the cross section of the convex ring to the inner diameter of the upper end face side of the annular sealing ring is 1: 45-55.

It is further defined that the outer diameter of the ends of said first and second plugging devices is greater than the inner diameter of the transversal tubes.

Further defined, the ratio of the outer diameter of the annular groove on the valve core to the inner diameter of the vertical pipe is 1-7: 10, the ratio of the height of the annular groove in the transverse direction to the inner diameter of the vertical pipe is 1-3: 2.

further limiting, the length of the valve core is 4-10 mm longer than that of the transverse pipe.

The utility model has the advantages and positive effects that: due to the adoption of the technical scheme, the sealing device has the advantages of simple structure and good sealing effect, and can ensure that the sealing part does not leak under static and moving states when the use environment is severe, and effectively reduce the liquid leakage risk brought by operation for operators.

Drawings

FIG. 1 is a schematic cross-sectional view of the present invention

FIG. 2 is a cross-sectional view of the ring seal

In the figure:

1. valve body 2, valve core 3 and annular sealing ring

4. First plugging device 5, second plugging device 11, vertical pipe

12. Transverse tube 31, annular groove 32, inner lip

33. Outer lip 34, projecting ring

Detailed Description

As shown in fig. 1-2, the utility model relates to a cross valve of drainage system, including valve body 1 and case 2, valve body 1 comprises vertical pipe 11 and horizontal pipe 12, horizontal pipe 12 intersects and is as an organic whole with vertical pipe 11 cross, vertical pipe 11 upper end is the inlet, and the lower extreme is the liquid outlet to horizontal pipe 12 inner chamber and vertical pipe 11 inlet and liquid outlet switch-on respectively, case 2 cooperatees with the inner chamber of horizontal pipe 12, and case 2 promotes around in the inner chamber of horizontal pipe 12 and along its limited direction, is provided with the annular groove on the well anterior lateral wall of case 2, the both ends internal surface of horizontal pipe 12 is equipped with annular spacing recess, is equipped with annular seal ring 3 in the annular spacing recess, the both ends of case 2 are equipped with first plugging device 4, second plugging device 5, and when dial out case 2 after backward handle or push case 2 from the preceding end of case 2 push case 2, When the valve core 2 is pulled to the rear end of the inner cavity of the transverse pipe 12, the annular groove is simultaneously communicated with the liquid inlet and the liquid outlet, and the liquid flow channel is opened; when the rear handle of the valve core 2 is pressed forwards or the valve core 2 is pushed to the front end of the inner cavity of the transverse pipe 12, the annular groove is staggered with the liquid inlet and the liquid outlet, and the liquid flow channel is closed.

The cross section of the annular sealing ring 3 is Y-shaped, an annular upper end face is arranged, the lower end face is opposite to the annular upper end face, an annular groove 31 is formed in the lower end face, an inner lip 32 is arranged on the inner side of the lower end face annular groove 31, an outer lip 33 is arranged on the outer side of the lower end face annular groove 31, an annular protruding ring 34 is arranged on the inner side, close to the upper end face, of the oil seal body, and the cross section of the protruding ring 34 is in a ridge shape.

The ratio of the height of the center line of the cross section of the protruding ring 34 to the inner diameter of the upper end face side of the annular sealing ring 3 is 1: 50.

The outer diameter of the ends of the first 4 and second 5 plugging devices is larger than the inner diameter of the transverse tube 12.

The external diameter of the annular groove on the valve core 2 is 2mm, the length of the annular groove is 5mm, and the external diameter of the annular groove on the valve core 2 is 1 of the internal diameter of the vertical pipe: 5, the ratio of the transverse height of the annular groove to the inner diameter of the vertical pipe is 1: 1.

the length of the valve core 2 is 6mm longer than that of the transverse pipe 12.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. The utility model provides a drainage system cross valve, includes valve body (1) and case (2), valve body (1) comprises vertical pipe (11) and horizontal pipe (12), horizontal pipe (12) intersect and even as an organic whole with vertical pipe (11) cross, vertical pipe (11) upper end is the inlet, and the lower extreme is the liquid outlet to horizontal pipe (12) inner chamber and vertical pipe (11) inlet and liquid outlet switch-on respectively, case (2) cooperate with the inner chamber of horizontal pipe (12), are provided with annular groove on the well anterior lateral wall of case (2), its characterized in that: the inner surfaces of two ends of the transverse pipe (12) are provided with annular limiting grooves, annular sealing rings (3) are arranged in the annular limiting grooves, and two ends of the valve core (2) are provided with first plugging devices (4) and second plugging devices (5).

2. The drainage system cross valve of claim 1, wherein: the cross-section of ring type seal ring (3) is Y shape, has an annular up end to and rather than relative lower terminal surface, be provided with ring channel (31) down on the terminal surface, the inboard of lower terminal surface ring channel (31) is equipped with interior lip (32), and the outside of lower terminal surface ring channel (31) is equipped with outer lip (33), the inboard that ring type seal ring (3) are close to the up end is equipped with annular protruding circle (34), the cross-section of protruding circle (34) is the ridge shape.

3. The drainage system cross valve of claim 2, wherein: the ratio of the height of the center line of the cross section of the protruding ring (34) to the inner diameter of the upper end face side of the annular sealing ring (3) is 1: 45-55.

4. The drainage system cross valve of claim 1, wherein: the outer diameter of the first plugging device (4) and the second plugging device (5) is larger than the inner diameter of the transverse tube (12).

5. The drainage system cross valve of claim 1, wherein: the ratio of the outer diameter of the annular groove on the valve core (2) to the inner diameter of the vertical pipe is 1-7: 10, the ratio of the transverse height of the annular groove to the inner diameter of the vertical pipe is 1-3: 2.

6. the drainage system cross valve of claim 1, wherein: the length of the valve core (2) is 4-10 mm longer than that of the transverse pipe (12).