CN217177519U - Novel three-way valve - Google Patents

Abstract

The utility model discloses a novel three-way valve, including valve body, case and handle, the case is installed in the valve body, and valve body wherein three sides communicate respectively has first valve pipe, second valve pipe and third valve pipe, is provided with three logical grooves in the case, and the three slotted hole that three led to the groove communicates respectively in first valve pipe, second valve pipe and third valve pipe, and the handle is connected with first handle body, second handle body and third handle body respectively. The utility model discloses beneficial effect: the utility model discloses the lower part inner wall of valve body is provided with a plurality of boss, and the lower part circumference of case sets up the recess that a plurality of and boss cooperation are connected, and the contained angle is 45 degrees between two adjacent bosss, and the contained angle is 45 degrees between two adjacent recesses, and every 45 degrees automatic positioning rotary valve core and valve body make the operator can the accurate recess of holding the case and counterpoint between the boss of valve body, the maloperation of liquid medicine infusion when reducing clinical use.

Description

Novel three-way valve

Technical Field

The utility model belongs to the technical field of the medical instrument technique and specifically relates to a novel three-way valve.

Background

The three-way valve is generally used in combination with other medical instruments, is used for injecting, infusing, transfusing, detecting or drawing blood and the like for patients, and has wide application in the medical field. For example, in the invasive pressure sensor, a three-way valve is arranged between the tail end of the invasive pressure sensor and a patient, so that continuous dynamic detection can be provided for the patient, and various physiological parameters of the blood pressure of the patient can be directly obtained; and the blood of the patient can be collected through the three-way valve, so that the injury caused by multiple puncture on the patient is avoided, and the pain of the patient is relieved.

The three-way valve core in the prior art is free to rotate, so that medical staff cannot accurately control the alignment accuracy between the valve core and the three-way main body when in use, a hole semi-blocking state is possibly caused, the flow rate in actual clinical use is influenced, and the infusion dosage is not accurate enough; or when the patient needs to be closed by rotating to 45 degrees, the patient may not be closed tightly due to insufficient accuracy, so that the medicine which should not be used enters the main infusion pipeline, and the patient is harmed.

Therefore, it is necessary to provide a new three-way valve for the above problems.

SUMMERY OF THE UTILITY MODEL

To the not enough that exists among the above-mentioned prior art, the utility model aims to provide a novel three-way valve to solve above-mentioned problem.

The utility model provides a novel three-way valve, includes valve body, case and handle, the case is installed in the valve body, the valve body wherein three sides communicate respectively has first valve pipe, second valve pipe and third valve pipe, be provided with three logical grooves in the case, three slotted hole that three led to the groove communicates respectively in first valve pipe, second valve pipe and third valve pipe, the handle is connected with first handle body, second handle body and third handle body respectively.

Preferably, the inner wall of the lower part of the valve body is provided with a plurality of bosses, and the circumference of the lower part of the valve core is provided with a plurality of grooves which are matched and connected with the bosses.

Preferably, the boss is in transition or interference fit with the groove.

Preferably, the radian included angle between every two adjacent bosses on the circumference is 45 degrees, and the radian included angle between every two adjacent grooves on the circumference is 45 degrees.

Preferably, the joints of the first valve pipe and the second valve pipe with the valve body are provided with reinforcing ribs.

Preferably, arrow direction marks are arranged on the upper parts of the first handle body, the second handle body and the third handle body.

Compared with the prior art, the utility model discloses beneficial effect: the utility model discloses the lower part inner wall of valve body is provided with a plurality of boss, and the lower part circumference of case sets up the recess that a plurality of and boss cooperation are connected, and the contained angle is 45 degrees between two adjacent bosss, and the contained angle is 45 degrees between two adjacent recesses, and every 45 degrees automatic positioning rotary valve core and valve body make the operator can the accurate recess of holding the case and counterpoint between the boss of valve body, the maloperation of liquid medicine infusion when reducing clinical use.

Drawings

FIG. 1 is a structural diagram of a novel three-way valve of the present invention;

FIG. 2 is a bottom view of the present invention;

FIG. 3 is an expanded view of the present invention;

FIG. 4 is a view of the valve body structure of the present invention;

fig. 5 is a connecting structure of the valve core and the handle of the present invention.

Reference numbers in the figures: 1. a valve body; 2. a valve core; 3. a handle; 4. a first valve tube; 5. a second valve tube; 6. a third valve tube; 7. three through grooves; 8. a first handle body; 9. a second handle body; 10. a third handle body; 11. A boss; 12. a groove; 13. a reinforcing rib plate; 14. the arrow direction indicates.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

As shown in fig. 1 in combination with fig. 2 to 5, a novel three-way valve includes a valve body 1, a valve core 2 and a handle 3, wherein the valve core 2 is installed in the valve body 1, three sides of the valve body 1 are respectively communicated with a first valve pipe 4, a second valve pipe 5 and a third valve pipe 6, a three-way groove 7 is provided in the valve core 2, three groove holes of the three-way groove 7 are respectively communicated with the first valve pipe 4, the second valve pipe 5 and the third valve pipe 6, and the handle 3 is respectively connected with a first handle body 8, a second handle body 9 and a third handle body 10.

Furthermore, a plurality of bosses 11 are arranged on the inner wall of the lower part of the valve body 1, and a plurality of grooves 12 which are matched and connected with the bosses 11 are arranged on the circumference of the lower part of the valve core 2.

The beneficial effects of the further technical scheme are that: so that the valve core 2 is matched with the valve body 1 through the groove 12 and the boss 11.

Further, the boss 11 and the groove 12 are in transition or interference fit.

The beneficial effects of the further technical scheme are that: transition or interference fit can cooperate the fastening connection on the one hand, and on the other hand when rotating, can not have very big rotational resistance.

Further, the radian included angle between every two adjacent bosses 11 on the circumference is 45 degrees, and the radian included angle between every two adjacent grooves 12 on the circumference is 45 degrees.

The beneficial effects of the further technical scheme are that: the valve core rotates 45 degrees, so that the three through grooves are disconnected and not communicated with the first valve pipe 4, the second valve pipe 5 and the third valve pipe 6, and meanwhile, the boss 11 is connected with the groove 12 in a matched mode to play a clamping effect.

Furthermore, reinforcing ribs 13 are arranged at the joints of the first valve pipe 4 and the second valve pipe 5 and the valve body 1.

The beneficial effects of the further technical scheme are that: the reinforcing ribs 13 can improve the connection strength.

Furthermore, arrow direction marks 14 are arranged on the upper parts of the first handle body 8, the second handle body 9 and the third handle body 10.

The beneficial effects of the further technical scheme are that: the arrow direction indicator 14 facilitates identification of the orientation.

The utility model discloses the lower part inner wall of valve body 1 is provided with a plurality of boss 11, and the lower part circumference of case 2 sets up recess 12 that a plurality of and 11 cooperations of boss are connected, and the contained angle is 45 degrees between two adjacent bosses 11, and the contained angle is 45 degrees between two adjacent recesses 12, and every 45 degrees automatic positioning rotary valve core 2 and valve body make the operator can the accurate counterpoint between recess 12 of holding case 2 and the boss 11 of valve body, the maloperation of liquid medicine infusion when reducing clinical use.

The lower part inner wall of valve body 1 is provided with a plurality of boss 11, the lower part circumference of case 2 sets up the recess 12 that a plurality of and boss 11 cooperation are connected, recess 12 and boss 11 are transition or interference fit, apply a revolving force to case 2 during the use, because the elasticity of macromolecular material (valve body 1 and case 2 adopt macromolecular material to make), case 2 contracts in, case 2 after rotatory 45 degrees recess 12 and the alignment of tee bend main part boss 11, case 2 contracts in partly kick-backs, cause to continue to rotate and produce certain resistance, and transmit the medical personnel who operate, make the operator can accurately hold the counterpoint between case 2 and the valve body 1.

The liquid medicine gets into in the three-way groove 7 of case 2 through first valve pipe 4, second valve pipe 5, then flows out through third valve pipe 6, when needing the disconnection, through handle 3 anticlockwise or clockwise rotation 45 degrees, then the boss 11 of case 2 and the recess 12 block of valve body 1 together, and three lead to groove 7 all with first valve pipe 4, second valve pipe 5 and third valve pipe 6 do not communicate, can close the valve.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same way in the protection scope of the present invention.

Claims (6)

1. A novel three-way valve is characterized in that: the valve comprises a valve body (1), a valve core (2) and a handle (3), wherein the valve core (2) is installed in the valve body (1), three sides of the valve body (1) are respectively communicated with a first valve pipe (4), a second valve pipe (5) and a third valve pipe (6), a three-through groove (7) is formed in the valve core (2), three groove holes of the three-through groove (7) are respectively communicated with the first valve pipe (4), the second valve pipe (5) and the third valve pipe (6), and the handle (3) is respectively connected with a first handle body (8), a second handle body (9) and a third handle body (10).

2. A new three-way valve according to claim 1, characterized in that: the inner wall of the lower part of the valve body (1) is provided with a plurality of bosses (11), and the circumference of the lower part of the valve core (2) is provided with a plurality of grooves (12) which are matched and connected with the bosses (11).

3. A new three-way valve according to claim 2, characterized in that: the boss (11) is in transition or interference fit with the groove (12).

4. A new three-way valve according to claim 2, characterized in that: the radian included angle between the adjacent two bosses (11) on the circumference is 45 degrees, and the radian included angle between the adjacent two grooves (12) on the circumference is 45 degrees.

5. A new three-way valve according to claim 1, characterized in that: and reinforcing rib plates (13) are arranged at the joints of the first valve pipe (4) and the second valve pipe (5) and the valve body (1).

6. A new three-way valve according to claim 1, characterized in that: arrow direction marks (14) are arranged on the upper portions of the first handle body (8), the second handle body (9) and the third handle body (10).

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