Three-way valve protection device

Abstract

The utility model discloses a three-way valve protection device which comprises a half box body and a drawer box matched with the half box body for use in a drawing and pulling mode, the half box body and the drawer box are both shaped like a Chinese character'fang ', a guide hole is formed in the right side of the half box body, and the drawer box is inserted into the guide hole and connected with the guide hole in a sliding mode. Clamping jaws are fixedly connected to the symmetrical positions of the bottoms of the inner surfaces of the half box bodies and the drawer box. The relative positions of the half box bodies and the drawer box are changed in a drawing mode so that the half box bodies and the drawer box can be matched with the lengths of a plurality of serially-connected three-way valves and protect the three-way valves, the tops and the bottoms of the half box bodies and the drawer box are open, the sealing films are used for sealing, the sealing films can be detached and replaced, the sealing mode is simple and convenient, and the sealing effect is good. The operation difficulty and the manufacturing cost are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical auxiliary instruments, in particular to a three-way valve protection device. Background Art

[0002] The Chinese patent with the prior art publication number CN215460889U discloses a sterile protection device for an infusion three-way tube, wherein the infusion three-way tube includes a control valve, three connecting tubes connected to the control valve and sealed connecting ends respectively connected to the three connecting tubes, the infusion three-way tubes are connected to each other through connecting tubes, and the multiple infusion three-way tubes are connected in series to form a straight line as a whole, the sterile protection device includes a sterile protection box, the sterile protection box includes a box body and a box cover, the box cover is sealed and hinged at the rear end of the box body, and the front end of the box cover is fixedly buckled at the front end of the box body by a box cover buckling device; the middle part of the box body and the box cover is a corrugated telescopic part that can be stretched or shortened along the left and right directions of the box body and the box cover, and an infusion three-way tube buckle is respectively provided on the left and right sides of the telescopic part inside the box body, and the infusion three-way tube buckle is fixedly clamped on two symmetrical connecting tubes of the infusion three-way tube or multiple infusion three-way tubes connected in series. On the two outermost connecting tubes at both ends of the through tube; a plurality of semicircular pipeline inlet and outlet holes are respectively provided at the corresponding positions on the left and right ends of the box body and the box cover. When the box cover is closed on the box body, the two semicircular pipeline inlet and outlet holes will constrain the infusion pipeline part connected to the infusion tee tube inside the two semicircular pipeline inlet and outlet holes and make the infusion pipeline extend from the inside of the sterile protection box, and the infusion pipeline can be observed through the box body or the box cover to see whether it is unobstructed or leaking; a single infusion tee tube or multiple infusion tees connected in series are fixed to the inside of the box body by two infusion tee tube buckles arranged inside the sterile protection box, and the corrugated telescopic part can be lengthened or shortened according to the total length of the infusion tees connected in series to adjust the length of the box body and the box cover, so that the device has a wider range of applications. At the same time, extending or shortening the device can also adjust the contact surface between the device and the bed unit.

[0003] The above technical solution is provided with a corrugated telescopic part, which can adjust the length of the box body and the box cover by lengthening or shortening the total length of the infusion tee tubes connected in series. The corrugated telescopic part is easy to bend and deform during use, which increases the force exerted on the infusion tee tubes connected in series and is stuck in the protective device, which can easily cause partial leakage at the connection of the infusion tee tubes. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the existing technology has an infusion three-way sterile protection device, in which a corrugated telescopic part is arranged to adjust the length of the box body and the box cover. The corrugated telescopic part is easily bent and deformed during use, which increases the force exerted on the infusion three-way tube connected in series in the protection device, which easily causes partial leakage at the connection of the infusion three-way tube.

[0005] To achieve the above object, the technical solution adopted by the utility model is as follows:

[0006] A three-way valve protection device includes a half box body and a drawer box that is used in cooperation with it by pulling. Both the half box body and the drawer box are in a "C" shape. A guiding hole is provided on the right side of the half box body. The drawer box is inserted into the guiding hole and is slidably connected to it;

[0007] Claw fingers are fixedly connected to the symmetric positions at the bottom of the inner surfaces of the half box body and the drawer box;

[0008] The positions where the top and bottom of the half box body and the drawer box are close to each other are open. Liquid outlet holes are provided on the sides away from each other of the half box body and the drawer box and at the positions of the claw fingers. Liquid inlet holes are provided at the symmetric positions on the front surfaces of the half box body and the drawer box;

[0009] Sealing films are also pasted on the top and bottom of the half box body and the drawer box.

[0010] Furthermore, a groove opening is provided on the side away from each other of the half box body and the drawer box and at the position of the liquid outlet hole. A guiding groove is provided in the middle of the groove opening. A door plate is slidably connected in the guiding groove;

[0011] The liquid outlet hole consists of two semi-circular holes with the same structure, and one of the semi-circular holes is provided on the door plate;

[0012] An embedding hole with a "T" - shaped cross-section is provided in the semi-circular hole, and a semi-annular rubber sealing pad adapted to it is clamped in the embedding hole.

[0013] Furthermore, a mushroom-shaped rubber plug is embedded in the liquid inlet hole. A through hole is provided in the middle of the rubber plug, and the rubber plug is cut into two unit plugs with the same structure along its central axis.

[0014] Working principle and beneficial effects: By changing the relative positions of the half box body and the drawer box in a pulling manner, it is adapted to the length of multiple series-connected three-way valves and protects them. The top and bottom of the half box body and the drawer box are open, and are sealed by using sealing films. The sealing films can be disassembled and replaced, and the sealing method is simple, reducing the operation difficulty and manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] [[ID=3, 32]]This is a schematic three-dimensional structure diagram of the utility model;

[0016] Figure 2 This is the utility model Figure 1 The enlarged schematic diagram of the structure of A in it.

[0017] ​In the figure: 1. Half box body; 2. Drawer box; 3. Guide hole; 4. Claw; 5. Liquid outlet hole; 6. Door panel; 7. Embedded hole; 8. Rubber gasket; 9. Liquid inlet hole; 10. Unit plug. Specific embodiments

[0018] The present utility model can be better understood according to the following embodiments.

[0019] The structures, ratios, sizes, etc. shown in the drawings of the specification are only used to cooperate with the content disclosed in the specification for those skilled in this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present utility model. Therefore, they do not have technical essence. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present utility model. At the same time, the terms such as "upper", "lower", "front", "rear", "middle", etc. cited in this specification are only for the convenience of clear narration, and are not used to limit the scope for the implementation of the present utility model. The change or adjustment of their relative relationship, without substantial change of the technical content, should also be regarded as the scope for the implementation of the present utility model.

[0020] As Figure 1-2 shown,

[0021] Embodiment

[0022] A three-way valve protection device, including a half box body 1 and a drawer box 2 that is used in cooperation with it by means of pulling. Both the half box body 1 and the drawer box 2 are in a "C" shape. A guide hole 3 is opened on the right side of the half box body 1. The drawer box 2 is inserted into the guide hole 3 and is slidably connected to it. By pulling, the relative position of the half box body 1 and the drawer box 2 is changed so that the protection device can be adapted to multiple series-connected three-way valves. Claws 4 are fixedly connected to the symmetric positions at the bottom of the inner surfaces of the half box body 1 and the drawer box 2. The claws 4 are used to hold the series-connected three-way valves. The positions where the top and bottom of the half box body 1 and the drawer box 2 are close to each other are open. Sealing films are also pasted on the top and bottom of the half box body 1 and the drawer box 2. After adjusting the relative position of the half box body 1 and the drawer box 2 and clamping the series-connected three-way valves on the claws 4, the open ends at the top and bottom of the protection device are sealed with the sealing films. The sealing films can be selected as plastic wrap, which does not affect the observation of the inside and has a sealing effect. Liquid outlet holes 5 are opened at the positions where the half box body 1 and the drawer box 2 are far away from each other and are located at the positions of the claws 4. The infusion tubes at both ends of the series-connected three-way valves pass through the liquid outlet holes 5. Liquid inlet holes 9 are opened at the symmetric positions on the front of the half box body 1 and the drawer box 2. The infusion tube perpendicular to the horizontal direction of a single three-way valve passes through the liquid inlet hole 9.

[0023] In order to facilitate the infusion tubes at both ends of the three-way valve to pass through the liquid outlet hole 5 after the series connection, and to ensure the sealing of the connection between the liquid outlet hole and the infusion tube, and to facilitate the infusion tube to pass through the liquid outlet hole 5, the side of the half box body 1 and the drawer box 2 away from each other is improved. The specific improved structure is: a groove is provided on the side of the half box body 1 and the drawer box 2 away from each other and located at the position of the liquid outlet hole 5, a guide groove is provided in the middle of the groove, and a door panel 6 is slidably connected in the guide groove, and the liquid outlet hole 5 consists of two semicircular holes of the same structure, and one of the semicircular holes is provided. It is provided on the door panel 6, and a embedding hole 7 with a "T"-shaped cross-section is opened in the semicircular hole. A semi-annular rubber sealing gasket 8 adapted thereto is clamped in the embedding hole 7. When in use, the two door panels 6 are removed, and then the three-way valve obtained by connecting in series is fixedly clamped on the claw 4, the infusion tube is placed in the semicircular hole, and the door panel 6 is inserted into the guide groove so that the two semicircular holes fit together to form a complete liquid outlet 5. At this time, the rubber sealing gasket 8 forms a complete ring to ensure that the connection between the liquid outlet 5 and the infusion tube is relatively sealed.

[0024] In order to improve the sealing between the liquid inlet hole 9 and the infusion tube, a rubber plug is added. The specific structure of the rubber plug is as follows: a mushroom-shaped rubber plug is embedded in the liquid inlet hole 9, a through hole is opened in the middle of the rubber plug, and the rubber plug is cut from the central axis into two unit plugs 10 with the same structure. A single three-way valve and an infusion tube perpendicular to the horizontal direction pass through the liquid inlet hole 9, the two unit plugs 10 clamp the infusion tube, and then the two unit plugs 10 are inserted into the liquid inlet hole 9.

[0025] The device uses the pulling and sliding method of the half box body 1 and the drawer box 2 to change their relative positions to adapt to the length of multiple three-way valves connected in series and protect them. The top and bottom of the half box body 1 and the drawer box 2 are open and sealed with a sealing film. The sealing film can be removed and replaced. The sealing method is simple, reducing the difficulty of operation and manufacturing cost. The two semicircular holes fit together to form a complete liquid outlet 5, which is combined with the rubber sealing gasket 8 to form a complete ring, and the two unit plugs 10 clamp the infusion tube, and then the two unit plugs 10 are inserted into the liquid inlet 9 to ensure the overall sealing of the device.

Claims

1. A three-way valve protection device, comprising a half box body (1) and a drawer box (2) used in conjunction with the half box body by pulling out, characterized in that: The semi-box body (1) and the drawer box (2) are both in a "C" shape. A guiding hole (3) is provided on the right side of the semi-box body (1). The drawer box (2) is inserted into the guiding hole (3) and is slidably connected thereto; Claw members (4) are fixedly connected to the symmetric positions at the bottoms of the inner surfaces of the semi-box body (1) and the drawer box (2); The positions where the tops and bottoms of the semi-box body (1) and the drawer box (2) are close to each other are open. Liquid outlet holes (5) are provided at the positions on the sides of the semi-box body (1) and the drawer box (2) away from each other and at the positions of the claw members (4). Liquid inlet holes (9) are provided at the symmetric positions on the fronts of the semi-box body (1) and the drawer box (2); Sealing films are also pasted on the tops and bottoms of the semi-box body (1) and the drawer box (2).

2. A three-way valve protection device according to claim 1, characterized in that: A groove opening is provided at the position on the side of the semi-box body (1) and the drawer box (2) away from each other and at the position of the liquid outlet hole (5). A guiding groove is provided in the middle of the groove opening. A door panel (6) is slidably connected in the guiding groove; The liquid outlet hole (5) is composed of two semi-circular holes with the same structure, and one of the semi-circular holes is provided on the door panel (6); An embedding hole (7) with a "T" - shaped cross-section is provided in the semi-circular hole. A semi-annular rubber sealing pad (8) adapted thereto is clamped in the embedding hole (7).

3. A three-way valve protection device according to claim 1, characterized in that: A mushroom-shaped rubber plug is also embedded in the liquid inlet hole (9). A through hole is provided in the middle of the rubber plug. The rubber plug is cut along the central axis into two unit plugs (10) with the same structure.

Images