CN219398708U - Needleless three-way valve - Google Patents

Abstract

The utility model relates to a needleless three-way valve, which aims to solve the technical problem that the current shell and a fluid channel are fixed by adopting threads more troublesome, and comprises a device main body, a pressing component, a clamping component, an elastic component and a plugging component; a pressing assembly disposed on the device body; the clamping assembly is arranged on the pressing assembly; the elastic component is arranged on the device main body; the plug-in component is arranged on the device main body; the movable end of the pressing component is connected with the elastic end of the elastic component; the pressing assembly moving end is connected with the input end of the plug-in assembly; the device body includes a valve body and a housing; the shell is arranged on the valve body fluid channel, and the pressing component, the clamping component, the elastic component and the inserting component are arranged, so that the device provided by the utility model is simple to operate and is convenient for fixing the shell and the fluid channel, and the problem that in the prior art, the shell and the fluid channel are troublesome to fix by adopting threads is solved.

Description

Needleless three-way valve

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a needleless three-way valve.

Background

The three-way valve body has three ports, one inlet and two outlets, (left inlet, right and lower outlets) and the common valve has an outlet at the bottom, when the internal valve core is at different positions, the outlets are different, such as the valve core is at the lower part, left and right are communicated, such as the valve core is at the upper part, the right outlet is blocked, the left and lower ports are communicated, because the left port and the right port are not on the same horizontal line, when the high-pressure emergency is split, the valve is closed, and the water is bypassed.

The needleless three-way valve provided by the Chinese patent with publication number of CN217653289U comprises a shell, a flow guiding piece, a fluid channel and the like, wherein the inner wall surface of the shell is in threaded connection with the outer wall surface of the fluid channel, so that the flow guiding piece can be fixed in the fluid channel to avoid the possibility of liquid leakage, thereby reducing the risk of infection, and the device has the following defects although having more beneficial effects: the fixing of the housing and the fluid channel requires that the worker rotate the housing to be in threaded engagement with the fluid channel, which increases the workload for the worker, so it is important to provide a three-way valve for fixing the housing and the fluid channel.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, adapt to the actual needs, and provide a needleless three-way valve so as to solve the technical problem that the current shell and a fluid channel are troublesome to fix by adopting threads.

In order to achieve the purpose of the utility model, the technical scheme adopted by the utility model is as follows: the needleless three-way valve comprises a device main body, a pressing component, a clamping component, an elastic component and a plugging component; a pressing assembly disposed on the device body; the clamping assembly is arranged on the pressing assembly; the elastic component is arranged on the device main body; the plug-in component is arranged on the device main body; the movable end of the pressing component is connected with the elastic end of the elastic component; the pressing assembly moving end is connected with the input end of the plug-in assembly;

the device body includes a valve body and a housing; the housing is disposed on the valve body fluid passage.

Preferably, the pressing assembly comprises a fixed block, a sliding chute A, a pressing rod and a moving block; at least one fixed block is fixedly arranged on the circumferential surface of the shell; the chute A is arranged in the fixed block; the pressing rod penetrates through one end, far away from the shell, of the fixing block, and the end part penetrates through the fixing block and extends into the sliding groove A; the moving block is arranged in the chute A and is connected with the end part of the pressing rod; the fixed block, the sliding chute A, the pressing rod and the moving block are in quantity adaptation; wherein, the movable block is in sliding fit with the chute A.

Preferably, the clamping assembly comprises a fixed shaft, a rotating block, a sliding shaft and a sliding chute B; the fixed shaft is fixedly arranged on the inner wall of the chute A; one end of the rotating block is sleeved on the fixed shaft; the sliding shaft penetrates through the other end of the rotating block; the chute B is arranged on the moving block; wherein the fixed shaft is in running fit with the rotating block; wherein, the sliding shaft is in sliding fit with the sliding groove B.

Preferably, the sliding groove B is in a heart-shaped structure, and the outer wall and the inner wall of the heart-shaped tip and the outer wall and the inner wall of the concave end are arranged in a staggered manner.

Preferably, the resilient member includes a recess, a plunger, and a spring; the empty slot is formed in the inner wall of one side, close to the shell, of the sliding slot A; the inserted link is fixedly arranged at one end of the moving block, which is close to the shell, and the end part of the inserted link penetrates through the empty slot to extend to the outside; the spring is arranged in the empty groove; one end of the spring is connected with the inner wall of the empty groove, and the other end of the spring is connected with one end, close to the shell, of the movable block.

Preferably, the plug assembly comprises a slot and a plug block; the slots are arranged on the circumferential surface of the fluid channel of the valve body in a linear array; the insert block is fixedly arranged at the end part of the insert rod; wherein the plug block is in plug-in fit with the slot; wherein the insert block is in a triangular structure.

Compared with the prior art, the utility model has the beneficial effects that:

1. the pressing component, the clamping component, the elastic component and the plugging component are arranged, and the functions of the pressing component, the clamping component, the elastic component and the plugging component are utilized, so that the device provided by the utility model is simple to operate and convenient for fixing the shell and the fluid channel, and the problems that in the prior art, the shell and the fluid channel are fixed, and a worker is required to rotate the shell to be in threaded fit with the fluid channel are solved, so that the workload is increased for the worker.

2. According to the utility model, the fixed block, the chute A, the pressing rod and the moving block are arranged, and the moving block is in sliding fit with the chute A, so that the moving block can move, and the moving block can conveniently drive the plug-in assembly to move, thereby realizing the fixation of the shell and the fluid channel.

3. According to the utility model, the fixed shaft, the rotating block, the sliding shaft and the sliding chute B are arranged, and the fixed shaft is in running fit with the rotating block and the sliding shaft is in sliding fit with the sliding chute B, so that the position of the moving block after moving can be fixed, and the shell is fixed with the fluid channel, so that the practicability of the utility model is improved.

4. According to the utility model, the sliding chute B is arranged into the heart-shaped structure, so that the sliding shaft can be fixed to the moving block by conveniently rotating the rotating block, the fixing and the dismounting of the shell and the fluid channel are facilitated, and the outer wall and the inner wall of the heart-shaped tip and the outer wall and the inner wall of the concave end are arranged in a staggered manner, so that the sliding shaft can slide in the sliding chute B smoothly, and the practicability of the utility model is improved.

5. According to the utility model, through arranging the empty slot, the inserted link and the spring, the rotating block and the moving block can be restored to the original positions by utilizing the elastic action of the spring, so that the shell and the fluid channel are convenient to detach.

6. According to the utility model, the inserting grooves and the inserting blocks are arranged, the inserting blocks are matched with the inserting grooves in an inserting way, so that the inserting rods can be driven to enable the inserting blocks to be inserted into the inserting grooves when the moving blocks move, the effect of fixing the shell and the fluid channel is achieved, the inserting blocks are arranged into a triangular structure, and the inclined surfaces of the inserting blocks are utilized to facilitate the inserting blocks to be inserted into the inserting grooves.

Drawings

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

FIG. 2 is a loose cross-sectional view of the overall structural shell of the present utility model;

FIG. 3 is a clamping cross-sectional view of the overall structural shell of the present utility model;

FIG. 4 is a schematic diagram of a moving block according to the present utility model;

FIG. 5 is an enlarged schematic view of the utility model at A;

FIG. 6 is an enlarged schematic view of the utility model at B;

in the figure:

1. a device body; 2. a pressing assembly; 3. a clamping assembly; 4. an elastic component; 5. a plug assembly;

101. a valve body; 102. a housing;

201. a fixed block; 202. a chute A; 203. pressing a pressing rod; 204. a moving block;

301. a fixed shaft; 302. a rotating block; 303. a sliding shaft; 304. a chute B;

401. a hollow groove; 402. a rod; 403. a spring;

501. a slot; 502. and (5) inserting blocks.

Detailed Description

The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:

example 1: a needleless three-way valve, see fig. 1-6, comprises a device body 1, a pressing component 2, a clamping component 3, an elastic component 4 and a plug-in component 5; the pressing assembly 2 is arranged on the device body 1; the clamping assembly 3 is arranged on the pressing assembly 2; the elastic component 4 is arranged on the device main body 1; the plug assembly 5 is arranged on the device main body 1; the movable end of the pressing component 2 is connected with the elastic end of the elastic component 4; the movable end of the pressing component 2 is connected with the input end of the plug-in component 5;

the device body 1 includes a valve body 101 and a housing 102; the housing 102 is provided on the fluid passage of the valve body 101. According to the utility model, the pressing component 2, the clamping component 3, the elastic component 4 and the inserting component 5 are arranged, and the functions of the pressing component 2, the clamping component 3, the elastic component 4 and the inserting component 5 are utilized, so that the device provided by the utility model is simple to operate and convenient for fixing the shell and the fluid channel, and the problem that in the prior art, the shell and the fluid channel are fixed, and a worker is required to rotate the shell to be in threaded fit with the fluid channel is solved, so that the workload of the worker is increased.

Specifically, the pressing assembly 2 includes a fixed block 201, a chute a202, a pressing lever 203, and a moving block 204; the two fixing blocks 201 are symmetrically arranged on two sides of the circumferential surface of the shell 102; the chute A202 is arranged in the fixed block 201; the pressing rod 203 is arranged on one end, far away from the shell 102, of the fixing block 201 in a penetrating way, the end part of the pressing rod extends into the sliding groove A202 through the fixing block 201, a cavity matched with the head of the pressing rod 203 is formed in the fixing block 201, and the depth size of the cavity is larger than that of the head of the pressing rod 203; the moving block 204 is arranged in the chute A202 and is connected with the end part of the pressing rod 203; wherein, the number of the fixed block 201, the chute A202, the pressing rod 203 and the moving block 204 is adapted; wherein the moving block 204 is in sliding fit with the chute a 202. According to the utility model, the fixed block 201, the chute A202, the pressing rod 203 and the moving block 204 are arranged, and the moving block 204 is in sliding fit with the chute A202, so that the moving block 204 can move, and the moving block 204 is convenient to drive the plug assembly 5 to move, thereby realizing the fixation of the shell 102 and the fluid channel.

Further, the clamping assembly 3 comprises a fixed shaft 301, a rotating block 302, a sliding shaft 303 and a sliding chute B304; the fixed shaft 301 is fixedly arranged on the inner wall of the chute A202; one end of the rotating block 302 is sleeved on the fixed shaft 301; the sliding shaft 303 penetrates through the other end of the rotating block 302; the chute B304 is arranged on the moving block 204; wherein the fixed shaft 301 is in rotary fit with the rotary block 302; wherein the sliding shaft 303 is in sliding fit with the sliding groove B304. According to the utility model, the fixed shaft 301, the rotating block 302, the sliding shaft 303 and the sliding chute B304 are arranged, and the fixed shaft 301 is in rotating fit with the rotating block 302 and the sliding shaft 303 is in sliding fit with the sliding chute B304, so that the position of the moving block 204 after moving can be fixed, and the shell 102 is fixed with the fluid channel, so that the practicability of the utility model is improved.

Still further, the chute B304 has a heart-shaped structure, and the outer wall and the inner wall of the heart-shaped tip and the outer wall and the inner wall of the concave end are staggered. According to the utility model, the chute B304 is arranged into the heart-shaped structure, so that the sliding shaft 303 can be fixed on the moving block 204 by conveniently rotating the rotating block 302, thereby facilitating the fixation and disassembly of the shell 102 and the fluid channel, and the outer wall and the inner wall of the heart-shaped tip and the outer wall and the inner wall of the concave end are arranged in a staggered manner, so that the sliding shaft 303 can slide in the chute B304 smoothly, and the practicability of the utility model is improved.

Notably, the resilient member 4 includes a hollow 401, a plunger 402, and a spring 403; the empty slot 401 is formed on the inner wall of one side of the sliding slot A202 close to the shell 102; the inserted link 402 is fixedly arranged on one end of the moving block 204 close to the shell 102, and the end part of the inserted link passes through the empty slot 401 to extend to the outside; the spring 403 is arranged in the hollow 401; one end of the spring 403 is connected with the inner wall of the hollow 401, and the other end of the spring 403 is connected with one end of the moving block 204 close to the housing 102. According to the utility model, through the arrangement of the empty groove 401, the inserted link 402 and the spring 403, the rotating block 302 and the moving block 204 can be restored to the original positions by utilizing the elastic action of the spring 403, so that the shell 102 and the fluid channel are convenient to detach.

Notably, the plug assembly 5 includes a socket 501 and a plug 502; ten slots 501 are arranged on the circumference surface of the fluid channel of the valve body 101 in a linear array; the insert block 502 is fixedly arranged at the end part of the insert rod 402, when the sliding shaft 303 is clamped with the concave end of the sliding groove B304, the end surface of the head part of the pressing rod 203 and the end surface of the fixed block 201 are positioned on the same axis, the insert rod 402 is positioned in the slot 501, the size of the insert block 502 is smaller than that of the sliding shaft 303, the sliding size of the sliding shaft 303 is larger than that of the insert block 502, and when the sliding shaft 303 is positioned at the tip end of the sliding groove B304, the tip end of the insert block 502 and the slot 501 are positioned on the same vertical surface; wherein, the plug 502 is in plug-in fit with the slot 501; wherein the insert 502 has a triangular structure. According to the utility model, the inserting groove 501 and the inserting block 502 are arranged, the inserting block 502 is in plug-in fit with the inserting groove 501, so that when the moving block 204 moves, the inserting rod 402 can be driven to enable the inserting block 502 to be inserted into the inserting groove 501, thereby playing a role of fixing the shell 102 and a fluid channel, the inserting block 502 is arranged into a triangular structure, and the inserting block 502 is conveniently inserted into the inserting groove 501 by utilizing the inclined surface of the inserting block 502.

Working principle: when the device provided by the utility model is needed to be used for installing the shell 102 and the fluid channel, the shell 102 is sleeved at a proper position of the fluid channel, at the moment, the pressing rod 203 is pressed, the pressing rod 203 starts to move towards the chute A202, the moving block 204 is driven to slide in the chute A202 when the pressing rod 203 moves, the sliding shaft 303 slides along the inclined surface of the chute B304 when the moving block 204 moves, the inserting rod 402 is driven to move when the moving block 204 moves, the inserting block 502 is driven to move, the inserting block 502 starts to move towards the slot 501, if the inclined surface of the inserting block 502 contacts the end surface of the slot 501, the inserting block 502 is corrected, the inserting block 502 is inserted into the slot 501, and the spring 403 is extruded when the moving block 204 moves, the spring 403 is stressed and contracted until the sliding shaft 303 slides to one end of the chute B304, at the moment, the head of the pressing rod 203 is positioned in the cavity of the fixed block 201, at the moment, the pressing rod 203 is released, the sliding shaft 303 slides to the concave end of the sliding groove B304 to fix the position of the moving block 204, at the moment, the pressing rod 203 rebounds to be positioned on the same vertical surface with the end surface of the fixed block 201, at the moment, the fixing of the shell 102 and the fluid channel is completed, when the shell 102 and the fluid channel are required to be detached, the pressing rod 203 is pressed to slide the moving block 204 in the sliding groove A202, and when the moving block 204 moves, the sliding shaft 303 slides in the sliding groove B304 to slide to the other end of the sliding groove B304, at the moment, the pressing rod 203 is released, the sliding shaft 303 slides along the other inclined surface of the sliding groove B304, at the moment, the spring 403 is not stressed any more, when the spring 403 stretches, the moving block 204 is driven to move in the opposite direction, and when the moving block 204 moves, the pressing rod 203 is driven to move in the opposite direction, and when the moving block 204 moves, the inserting rod 402 is driven to move in the opposite direction, and when the inserting rod 402 moves, the inserting block 502 is driven to move in the opposite direction, so that the inserting block 502 is gradually separated from the inserting connection with the inserting groove 501 until the sliding shaft 303 slides to the tip of the sliding groove B304, at this time, the inserting block 502, the spring 403 and the pressing rod 203 are restored to the original positions, at this time, the housing 102 and the fluid channel can be detached, and when the housing 102 and the fluid channel are fixed again, the above operation is repeated.

The embodiments of the present utility model are disclosed as preferred embodiments, but not limited thereto, and those skilled in the art will readily appreciate from the foregoing description that various modifications and variations can be made without departing from the spirit of the present utility model.

Claims (6)

1. A needleless three-way valve comprising:

a device body (1);

a pressing assembly (2) disposed on the device body (1);

a clamping assembly (3) arranged on the pressing assembly (2);

-an elastic member (4) arranged on said device body (1);

-a plug assembly (5) arranged on the device body (1);

the movable end of the pressing component (2) is connected with the elastic end of the elastic component (4);

the movable end of the pressing component (2) is connected with the input end of the plug-in component (5);

wherein the device body (1) comprises:

a valve body (101);

and the shell (102) is arranged on the fluid channel of the valve body (101).

2. A needleless three-way valve as in claim 1, in which the pressing assembly (2) comprises:

at least one fixed block (201) fixedly arranged on the circumferential surface of the shell (102);

the chute A (202) is arranged in the fixed block (201);

the pressing rod (203) is arranged on one end, far away from the shell (102), of the fixed block (201) in a penetrating way, and the end part of the pressing rod penetrates through the fixed block (201) and extends into the sliding groove A (202);

the moving block (204) is arranged in the chute A (202) and is connected with the end part of the pressing rod (203);

the number of the fixed blocks (201), the sliding grooves A (202), the pressing rods (203) and the moving blocks (204) are adapted;

wherein, the movable block (204) is in sliding fit with the chute A (202).

3. A needleless three-way valve as in claim 2, in which the clamping assembly (3) comprises:

the fixed shaft (301) is fixedly arranged on the inner wall of the chute A (202);

a rotating block (302), one end of which is sleeved on the fixed shaft (301);

the sliding shaft (303) is arranged on the other end of the rotating block (302) in a penetrating way;

the sliding chute B (304) is arranged on the moving block (204);

wherein the fixed shaft (301) is in rotary fit with the rotary block (302);

wherein the sliding shaft (303) is in sliding fit with the sliding groove B (304).

4. A needleless three way valve as in claim 3 in which said chute B (304) is of a heart-shaped configuration with the outer and inner walls of the heart-shaped tip and the inner and outer walls of the concave end being staggered.

5. A needleless three-way valve as in claim 2, in which the resilient member (4) comprises:

the empty groove (401) is formed in the inner wall of one side, close to the shell (102), of the sliding groove A (202);

the inserting rod (402) is fixedly arranged at one end of the moving block (204) close to the shell (102), and the end part of the inserting rod penetrates through the empty groove (401) to extend to the outside;

a spring (403) disposed in the hollow groove (401);

one end of the spring (403) is connected with the inner wall of the empty groove (401), and the other end of the spring (403) is connected with one end of the moving block (204) close to the shell (102).

6. A needleless three-way valve as in claim 5, in which the plug assembly (5) comprises:

a plurality of slots (501) which are arranged on the circumference surface of the fluid channel of the valve body (101) in a linear array;

the insert block (502) is fixedly arranged at the end part of the insert rod (402);

wherein the plug block (502) is in plug-in fit with the slot (501);

wherein the insert block (502) is in a triangular structure.