CN209827709U

CN209827709U - Pressure regulating device of negative pressure suction equipment

Info

Publication number: CN209827709U
Application number: CN201920412818.2U
Authority: CN
Inventors: 李良花
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-03-29
Filing date: 2019-03-29
Publication date: 2019-12-24
Anticipated expiration: 2029-03-29

Abstract

The utility model provides a negative pressure suction equipment pressure regulation and control device, include: the device comprises a device body, a valve seat, a screw cap, a valve core, a limiting plate, a screw, a movable hole, an air suction hole, a first air hole and a second air hole; the top end of the device body is provided with a screw cap, and the screw cap is connected with the valve seat through threads; the upper end of the valve core penetrates through the screw cap to be connected with the limiting plate, and the valve core is connected with the limiting plate through a screw; the upper part of the valve seat is provided with a movable hole communicated with the air suction hole; the valve core is arranged in the movable hole and is in sliding connection with the valve seat through the movable hole; a first air hole is formed in one side of the upper part of the valve seat and communicated with the movable hole; through the improvement to a negative pressure suction equipment pressure regulation and control device, have simple structure, the assembly of being convenient for, convenient operation easily adjusts the advantage of pipeline negative pressure to the effectual problem and the not enough of having solved current device.

Description

Pressure regulating device of negative pressure suction equipment

Technical Field

The utility model relates to a negative pressure equipment technical field, more specifically the theory that says so especially relates to a negative pressure suction equipment pressure regulation and control device.

Background

The principle of negative pressure suction is that a suction head is made into a negative pressure state by a certain method, and external substances are extruded to the suction head under the action of atmospheric pressure, so that a suction effect is realized. Among them, such negative pressure suction apparatuses have been used in clinical departments, mainly for medical drainage, sputum excretion, blood and secretion excretion, and the like.

The existing negative pressure suction equipment mainly comprises a vacuum negative pressure source and a suction pipe, negative pressure suction is mostly adjusted by adjusting the power of the negative pressure source, the use is very inconvenient, although some devices can be additionally arranged on the suction pipe at present, the purpose of adjusting the negative pressure is achieved by changing the ventilation sectional area of a suction pipeline, the structure of the devices is complex, and the negative pressure of the pipeline is inconvenient to adjust.

In view of the above, the present invention provides a pressure control device for a negative pressure suction apparatus, which is developed to solve the problems and improve the practical value.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a negative pressure suction equipment pressure regulation and control device to solve the most power regulation negative pressure suction through adjusting the negative pressure source that proposes in the above-mentioned background art, use very inconveniently, though some devices can install additional on attracting the pipe at present, attract the pipeline section of ventilating through the change and reach the purpose of adjusting the negative pressure, but the structure of this type of device is comparatively complicated, inconvenient regulation pipeline negative pressure's problem and not enough.

In order to achieve the above object, the utility model provides a negative pressure suction device pressure regulation and control device, which is achieved by the following specific technical means:

a pressure regulating device of a negative pressure suction apparatus, comprising: the device comprises a device body, a valve seat, a screw cap, a valve core, a limiting plate, a screw, a movable hole, an air suction hole, a first air hole and a second air hole; the top end of the device body is provided with a screw cap, and the screw cap is connected with the valve seat through threads; the upper end of the valve core penetrates through the screw cap to be connected with the limiting plate, and the valve core is connected with the limiting plate through a screw; the upper part of the valve seat is provided with a movable hole communicated with the air suction hole; the valve core is arranged in the movable hole and is in sliding connection with the valve seat through the movable hole; a first air hole is formed in one side of the upper part of the valve seat and communicated with the movable hole; the second air hole is arranged above the first air hole and communicated with the movable hole.

As the further optimization of this technical scheme, the utility model relates to a negative pressure suction equipment pressure regulation and control device the centre of spiral shell lid is seted up and is run through the through-hole with case upper end matched with, just run through the through-hole and be clearance fit with the case.

As the further optimization of this technical scheme, the utility model relates to a negative pressure suction apparatus pressure regulation and control device the appearance of disk seat is the shape of falling T, and is provided with the screw thread on the outer wall of disk seat upper end, is provided with the screw thread on the inner wall at both ends about the disk seat.

As the further optimization of this technical scheme, the utility model relates to a negative pressure suction apparatus pressure regulation and control device the appearance of activity hole bottom is the toper form, and the bottom and the suction opening of activity hole are linked together.

As the further optimization of this technical scheme, the utility model relates to a negative pressure suction apparatus pressure regulation and control device the appearance of case lower extreme is the toper form, and the bottom contact of the lower extreme of case and activity hole is sealed.

As the further optimization of the technical scheme, the utility model relates to a negative pressure suction device pressure regulation and control device first bleeder vent and second bleeder vent are linked together with bottom, the middle part of activity hole respectively.

As the further optimization of this technical scheme, the utility model relates to a negative pressure suction equipment pressure regulation and control device the appearance of limiting plate is circular form, and the screw matched with ladder through-hole has been seted up to the centre of limiting plate.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:

1. the utility model discloses a middle through-hole that runs through with case upper end matched with of offering of spiral shell lid, just run through the through-hole and be clearance fit's setting with the case, revolve to twist the spiral shell lid soon and can drive the case along the vertical motion of movable hole, be convenient for carry out the release pressurize to negative pressure pipeline.

2. The utility model discloses a setting that first bleeder vent and second bleeder vent are linked together with bottom, the middle part of activity hole respectively is convenient for adjust the pipeline negative pressure on a large scale.

3. The utility model discloses an appearance of limiting plate is circular form, and the centre of limiting plate sets up the setting of screw matched with ladder through-hole, makes things convenient for being connected between spiral shell lid and the case fixed.

4. The utility model discloses a to the improvement of a negative pressure suction equipment pressure regulation and control device, have simple structure, the assembly of being convenient for, convenient operation easily adjusts the advantage of pipeline negative pressure, thereby effectual solution the utility model discloses the problem that proposes in background art is with not enough.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the communication structure between the suction holes and the first ventilation holes of the present invention;

fig. 3 is a schematic view of the communicating structure between the suction holes and the second air holes of the present invention.

In the figure: the device comprises a device body 1, a valve seat 2, a screw cap 3, a valve core 4, a limiting plate 5, a screw 6, a movable hole 7, an air suction hole 8, a first air hole 9 and a second air hole 10.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

It is to be noted that, in the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and 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 thus, should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Meanwhile, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the connection can be mechanical connection or electrical connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 3, the present invention provides a specific technical embodiment of a pressure regulating device for a negative pressure suction apparatus:

a pressure regulating device of a negative pressure suction apparatus, comprising: the device comprises a device body 1, a valve seat 2, a screw cover 3, a valve core 4, a limiting plate 5, a screw 6, a movable hole 7, an air suction hole 8, a first air hole 9 and a second air hole 10; the top end of the device body 1 is provided with a screw cap 3, and the screw cap 3 is connected with the valve seat 2 through threads; the upper end of the valve core 4 penetrates through the screw cap 3 to be connected with the limiting plate 5, and the valve core 4 is connected with the limiting plate 5 through a screw 6; the upper part of the valve seat 2 is provided with a movable hole 7 communicated with an air suction hole 8; the valve core 4 is arranged in the movable hole 7, and the valve core 4 is connected with the valve seat 2 in a sliding way through the movable hole 7; a first air hole 9 is formed in one side of the upper part of the valve seat 2, and the first air hole 9 is communicated with the movable hole 7; the second air hole 10 is arranged above the first air hole 9, and the second air hole 10 is communicated with the movable hole 7.

Specifically, the middle of the screw cap 3 is provided with a through hole matched with the upper end of the valve core 4, the through hole is in clearance fit with the valve core 4, and the screw cap 3 is screwed to drive the valve core 4 to vertically move along the movable hole 7, so that pressure relief and pressure maintaining are performed on the negative pressure pipeline.

Specifically, the appearance of disk seat 2 is the shape of falling T, and is provided with the screw thread on the outer wall of disk seat 2 upper end, is provided with the screw thread on the inner wall at both ends about disk seat 2, and both ends about negative pressure pipeline accessible screwed joint is connected to disk seat 2 make things convenient for being connected of device and negative pressure pipeline.

Specifically, the bottom of the movable hole 7 is in a conical shape, the bottom of the movable hole 7 is communicated with the air suction hole 8, and when the lower end of the valve core 4 is separated from the movable hole 7, pressure relief can be performed on the negative pressure pipeline.

Specifically, the shape of the lower end of the valve core 4 is in a conical shape, and the lower end of the valve core 4 is in contact sealing with the bottom of the movable hole 7, so that pressure maintaining can be performed on a negative pressure pipeline.

Specifically, the first air hole 9 and the second air hole 10 are respectively communicated with the bottom and the middle of the movable hole 7, and the first air hole 9 and the second air hole 10 can be communicated with the air suction hole 8 in the ascending process of the valve core 4, so that the communication degree between the inside of the device and the outside can be adjusted, and the negative pressure of the pipeline can be conveniently adjusted in a large range.

Specifically, the appearance of limiting plate 5 is circular form, and the centre of limiting plate 5 is seted up screw 6 matched with ladder through-hole, makes things convenient for the connection between spiral shell lid 3 and the case 4 to fix.

The method comprises the following specific implementation steps:

when the pressure of the negative pressure pipeline is adjusted, the communication degree between the inside of the adjusting device body 1 and the outside can be adjusted, the pressure of the negative pressure pipeline is subjected to small-range pressure relief or large-range pressure relief, when the small-range pressure relief is carried out, the screw cap 3 is screwed in a small range, the valve core 4 can be driven to slightly move upwards, the conical head at the lower end of the valve core 4 is gradually separated from the bottom of the movable hole 7, the air channel between the air suction hole 8 and the first air vent 9 is gradually increased, the small-range pressure relief of the negative pressure pipeline is realized, when the large-range pressure relief is carried out, the screw cap 3 can be screwed in a large range, the valve core 4 moves upwards, the air suction hole 8 can be gradually communicated with the first air vent 9 and the second air vent 10 and.

In summary, the following steps: according to the pressure regulating device of the negative pressure suction equipment, the through hole matched with the upper end of the valve core is formed in the middle of the screw cap, the through hole is in clearance fit with the valve core, and the screw cap is screwed to drive the valve core to vertically move along the movable hole, so that pressure relief and pressure maintaining are convenient for a negative pressure pipeline; the first air hole and the second air hole are respectively communicated with the bottom and the middle of the movable hole, so that the negative pressure of the pipeline can be conveniently adjusted in a large range; the limiting plate is circular in shape, and the stepped through hole matched with the screw is formed in the middle of the limiting plate, so that the screw cap and the valve core can be conveniently connected and fixed; through the improvement to a negative pressure suction equipment pressure regulation and control device, have simple structure, the assembly of being convenient for, convenient operation easily adjusts the advantage of pipeline negative pressure to effectual solution the utility model discloses the problem that proposes in background art is with not enough.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A pressure regulating device of a negative pressure suction apparatus, comprising: the device comprises a device body (1), a valve seat (2), a screw cap (3), a valve core (4), a limiting plate (5), a screw (6), a movable hole (7), an air suction hole (8), a first air hole (9) and a second air hole (10); the method is characterized in that: the top end of the device body (1) is provided with a screw cap (3), and the screw cap (3) is connected with the valve seat (2) through threads; the upper end of the valve core (4) penetrates through the screw cap (3) to be connected with the limiting plate (5), and the valve core (4) is connected with the limiting plate (5) through a screw (6); the upper part of the valve seat (2) is provided with a movable hole (7) communicated with the air suction hole (8); the valve core (4) is arranged in the movable hole (7), and the valve core (4) is connected with the valve seat (2) in a sliding way through the movable hole (7); a first air hole (9) is formed in one side of the upper portion of the valve seat (2), and the first air hole (9) is communicated with the movable hole (7); the second air hole (10) is arranged above the first air hole (9), and the second air hole (10) is communicated with the movable hole (7).

2. The pressure regulating device of the negative pressure suction apparatus according to claim 1, wherein: the middle of the screw cap (3) is provided with a through hole matched with the upper end of the valve core (4), and the through hole is in clearance fit with the valve core (4).

3. The pressure regulating device of the negative pressure suction apparatus according to claim 1, wherein: the valve seat (2) is in an inverted T shape, threads are arranged on the outer wall of the upper end of the valve seat (2), and threads are arranged on the inner walls of the left end and the right end of the valve seat (2).

4. The pressure regulating device of the negative pressure suction apparatus according to claim 1, wherein: the bottom of the movable hole (7) is in a conical shape, and the bottom of the movable hole (7) is communicated with the air suction hole (8).

5. The pressure regulating device of the negative pressure suction apparatus according to claim 1, wherein: the shape of the lower end of the valve core (4) is in a conical shape, and the lower end of the valve core (4) is in contact sealing with the bottom of the movable hole (7).

6. The pressure regulating device of the negative pressure suction apparatus according to claim 1, wherein: the first air hole (9) and the second air hole (10) are respectively communicated with the bottom and the middle of the movable hole (7).

7. The pressure regulating device of the negative pressure suction apparatus according to claim 1, wherein: the limiting plate (5) is circular in shape, and a stepped through hole matched with the screw (6) is formed in the middle of the limiting plate (5).