CN214969771U

CN214969771U - Negative pressure suction apparatus

Info

Publication number: CN214969771U
Application number: CN202120492688.5U
Authority: CN
Inventors: 罗娟
Original assignee: Shaoxing Hospital of Traditional Chinese Medicine
Current assignee: Shaoxing Hospital of Traditional Chinese Medicine
Priority date: 2021-03-08
Filing date: 2021-03-08
Publication date: 2021-12-03
Anticipated expiration: 2031-03-08

Abstract

The utility model provides a negative pressure aspirator, which comprises a bottle body and a bottle cap arranged at the upper end of the bottle body, wherein the upper surface of the bottle cap is provided with a bent pipe, one end of the bent pipe far away from the bottle cap is connected with a first one-way valve, one end of the first one-way valve far away from the bent pipe is connected with a cylinder body with an opening lower end, one side of the outer surface of the upper end of the cylinder body far away from the first one-way valve is provided with a second one-way valve, a first piston is arranged in the cylinder body in a sliding way, the middle position of the lower surface of the first piston is provided with a connecting component, the lower end of the connecting component is connected with an electric push rod movable end, the outer surface of the upper end of the cylinder body is provided with a through hole, the outer side of the through hole is provided with an adjusting cylinder body fixedly connected with the cylinder body, the second piston is arranged in the adjusting cylinder body in a sliding way, the middle position of one side of the adjusting cylinder body far away from the cylinder body is fixedly provided with an internal thread sleeve, compared with the prior art, the utility model discloses following beneficial effect has: the convenient adjustment of the negative pressure value is realized.

Description

Negative pressure suction apparatus

Technical Field

The utility model relates to a negative pressure suction apparatus, which belongs to the technical field of nursing.

Background

Currently, in clinic, abdominal drainage is a common technique for surgery, and at present, a liquid drainage bottle is one of the main modes of abdominal drainage. The utility model discloses a chinese utility model patent that publication number is CN208943015U discloses constant negative pressure aspirator, including bottle, bottle lid, first intubate, second intubate, third intubate, fourth intubate, casing, spring, piston, motor, cam, circulation hole, first check valve, second check valve, last pivoted effect through the motor to realize that the piston carries out reciprocating motion from top to bottom along the casing is inside, through piston reciprocating motion's effect, realize promptly the continuous extraction to the inside air of bottle, but its existence is not enough: the motor position is fixed, and the size valley bottom of the cam causes the range of movement of the piston in the shell to be unchanged, the generated negative pressure value cannot be adjusted as required, the size of the negative pressure value is unchanged, and the application range is small.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a negative pressure suction apparatus which is not enough for the prior art to solve the problem that proposes in the above background art, the utility model discloses realize the convenient adjustment of negative pressure value size.

In order to achieve the above purpose, the present invention is realized by the following technical solution: a negative pressure aspirator comprises a bottle body and a bottle cap arranged at the upper end of the bottle body, wherein a bent pipe is arranged on the upper surface of the bottle cap, one end of the bent pipe far away from the bottle cap is connected with a first one-way valve, one end of the first one-way valve far away from the bent pipe is connected with a cylinder body with an open lower end, one side of the outer surface of the upper end of the cylinder body, which deviates from the first one-way valve, is provided with a second one-way valve, a first piston is arranged in the cylinder body in a sliding way, a connecting assembly is arranged at the middle position of the lower surface of the first piston, the lower end of the connecting assembly is connected with an electric push rod movable end, the end of the electric push rod cylinder body is fixedly connected with the bottle body, the outer surface of the upper end of the cylinder body is provided with a through hole, an adjusting cylinder fixedly connected with the cylinder body is arranged outside the through hole, a second piston is arranged in the adjusting cylinder body in a sliding way, an internal thread sleeve is fixed at the middle position of one side of the adjusting cylinder body far away from the adjusting cylinder body, the internal thread sleeve is internally and threadedly connected with a threaded rod, one end of the threaded rod extends into the adjusting cylinder and is fixedly connected with the second piston, and one end of the threaded rod, which is far away from the second piston, is provided with a handle.

Further, threaded connection has first locknut on the threaded rod, first locknut sets up between internal thread cover and the handle.

Further, coupling assembling includes the spliced pole, the spliced pole upper end is rotated with first piston and is connected, spliced pole lower surface middle part position sets up threaded hole, threaded hole female connection has the screw thread post, screw thread post lower extreme and electric putter expansion end fixed connection.

Further, threaded connection has the second locknut on the screw thread post, the second locknut sets up between first piston and electric putter.

Furthermore, a bearing is installed on the outer surface of the upper end of the connecting column, and the outer ring of the bearing is fixedly connected with the first piston.

Further, the outer surface of the cylinder is fixed with two first supporting rods, one end, away from the cylinder, of each first supporting rod is fixedly connected with the bottle body, the cylinder body end of the electric push rod is fixedly connected with two second supporting rods, and one end, away from the electric push rod, of each second supporting rod is fixedly connected with the bottle body.

Furthermore, the outer surface of the bottle body is fixed with a convex strip, the convex strip and the bottle body are of an integrated structure, one end of the first supporting rod, far away from the cylinder, is fixedly connected with the convex strip, and one end of the second supporting rod, far away from the electric push rod, is fixedly connected with the convex strip.

Further, the outer surface of the upper end of the bottle body is fixedly connected with a circular ring, a buckle is connected in the circular ring in a clamping mode, and a cloth belt ring is tied in the buckle in a tying mode.

The utility model has the advantages that: utilize the handle to rotate the threaded rod, and then the threaded rod rotates in the internal thread cover and drives the second piston and remove in adjusting a section of thick bamboo, and then adjust a section of thick bamboo and the common space grow or diminish that is used for producing the negative pressure that forms of cylinder, and then first piston when removing the same distance, the gaseous reduction or the increase that get into the cylinder from the bottle, realize the convenient adjustment of single air exhaust in-process negative pressure value size.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural view of a negative pressure suction apparatus of the present invention;

FIG. 2 is a schematic view of the assembly of the first piston, the adjusting cylinder and the cylinder in the vacuum extractor of the present invention;

in the figure: the device comprises a cylinder 1, a cloth belt ring 2, a buckle 3, a ring 4, a bottle cap 5, a bent pipe 6, a first check valve 7, a cylinder 8, a check valve 9, a check valve 10, an adjusting cylinder 11, a first locknut 12, a threaded rod 12, a handle 13, an internal thread sleeve 14, a first support rod 15, a convex strip 16, a second support rod 17, a connecting column 18, a second locknut 19, a threaded column 20, an electric push rod 21, a first piston 22, a bearing 23, a threaded hole 24, a through hole 25 and a second piston 26.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Referring to fig. 1 and fig. 2, the present invention provides a technical solution: the utility model provides a negative pressure suction apparatus, includes bottle 1 and installs bottle lid 5 in bottle 1 upper end, and 5 surface mounting on the bottle lid have return bend 6, and the one end that bottle lid 5 was kept away from to return bend 6 is connected with first check valve 7, and return bend 6 plays the effect of connecting first check valve 7 and bottle lid 5.

One end that return bend 6 was kept away from to first check valve 7 is connected with the cylinder 8 that the lower extreme is the opening form, second check valve 9 is installed to the one side that 8 upper end surfaces of cylinder deviate from first check valve 7, when electric putter 21 drives first piston 22 downstream, first check valve 7 is opened, second check valve 9 is closed, and then in the air inflow cylinder 8 in the bottle 1, when electric putter 21 drives first piston 22 and upwards removes, second check valve 9 is closed, the first check valve 7 of second is opened, thereby the air in the cylinder 8 is discharged.

A first piston 22 is arranged in the cylinder 8 in a sliding mode, a connecting assembly is arranged in the middle of the lower surface of the first piston 22, the lower end of the connecting assembly is connected with a movable end of an electric push rod 21, the end of the cylinder body of the electric push rod 21 is fixedly connected with the bottle body 1, and the connecting assembly plays a role in connecting the first piston 22 with the electric push rod 21.

The outer surface of the upper end of the cylinder 8 is provided with a through hole 25, the outer side of the through hole 25 is provided with an adjusting cylinder 10 fixedly connected with the cylinder 8, a second piston 26 is arranged in the adjusting cylinder 10 in a sliding way, an internal thread sleeve 14 is fixed at the middle position of one side of the adjusting cylinder 10 far away from the cylinder 8, the internal thread sleeve 14 is connected with a threaded rod 12 in an internal thread way, one end of the threaded rod 12 extends into the adjusting cylinder 10 and is fixedly connected with the second piston 26, one end of the threaded rod 12 far away from the second piston 26 is provided with a handle 13, the threaded rod 12 is rotated by the handle 13, the threaded rod 12 is then rotated in the internal threaded sleeve 14 and drives the second piston 26 in the adjustment cylinder 10, and the space for generating negative pressure formed by the adjusting cylinder 10 and the cylinder body 8 is enlarged or reduced, and then first piston 22 when removing the same distance, the gaseous reduction or the increase that gets into in the cylinder 8 from bottle 1 realizes the convenient adjustment of single in-process negative pressure value size of bleeding.

The threaded rod 12 is connected with a first locknut 11 through threads, the first locknut 11 is arranged between the internal thread sleeve 14 and the handle 13, and after the position of the second piston 26 is adjusted, the first locknut 11 is screwed, so that the first locknut 11 is tightly attached to the internal thread sleeve 14, and the effect of preventing the threaded rod 12 from rotating at will is achieved.

Coupling assembling includes spliced pole 18, spliced pole 18 upper end is rotated with first piston 22 and is connected, threaded hole 24 has been seted up to spliced pole 18 lower surface middle part position, threaded hole 24 internal thread connection has screw thread post 20, screw thread post 20 lower extreme and 21 expansion end fixed connection of electric putter, adjust the length of screw thread post 20 in screw hole 24, and then the interval grow between electric putter 21 and the first piston 22 or diminish, and then reach the purpose of adjusting first piston 22 initial position in cylinder 8.

The threaded column 20 is connected with a second locknut 19 through threads, the second locknut 19 is arranged between the first piston 22 and the electric push rod 21, after the position of the first piston 22 is adjusted, the second locknut 19 is screwed, so that the second locknut 19 is tightly attached to the connecting column 18, and the threaded column 20 and the electric push rod 21 rotate relatively.

The bearing 23 is installed on the outer surface of the upper end of the connecting column 18, the outer ring of the bearing 23 is fixedly connected with the first piston 22, and the bearing 23 is used for realizing the rotary connection between the connecting column 18 and the first piston 22.

8 external surface fixings of cylinder have two first branches 15, and the one end and the 1 fixed connection of bottle of cylinder 8 are kept away from to first branch 15, and two second branches 17 of electric putter 21 cylinder body end fixedly connected with, and electric putter 21's one end and 1 fixed connection of bottle are kept away from to second branch 17, and first branch 15 plays the effect of connecting cylinder 8 and bottle 1, and second branch 17 plays the effect of connecting electric putter 21 and bottle 1.

The convex strip 16 is fixed on the outer surface of the bottle body 1, the convex strip 16 and the bottle body 1 are of an integrated structure, one end of the first supporting rod 15, which is far away from the cylinder body 8, is fixedly connected with the convex strip 16, one end of the second supporting rod 17, which is far away from the electric push rod 21, is fixedly connected with the convex strip 16, and the design of the convex strip 16 realizes the contact part of the local thickened bottle body 1 with the first supporting rod 15 and the second supporting rod 17.

The outer fixed surface of the upper end of the bottle body 1 is connected with a circular ring 4, a buckle 3 is connected in the circular ring 4 in a clamping manner, a cloth belt ring 2 is tied in the buckle 3, the buckle 3 is clamped on the circular ring 4, and then the cloth belt ring 2 is worn on the neck of a patient, so that the device is convenient to carry.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a negative pressure suction apparatus, includes bottle (1) and installs bottle lid (5) in bottle (1) upper end, its characterized in that: bottle lid (5) upper surface mounting has return bend (6), the one end that bottle lid (5) were kept away from in return bend (6) is connected with first check valve (7), the one end that return bend (6) were kept away from in first check valve (7) is connected with cylinder (8) that the lower extreme is the opening form, second check valve (9) are installed to one side that cylinder (8) upper end surface deviates from first check valve (7), slidable mounting has first piston (22) in cylinder (8), coupling assembling is installed to first piston (22) lower surface mid position, the coupling assembling lower extreme is connected with electric putter (21) expansion end, electric putter (21) cylinder end and bottle (1) fixed connection, through-hole (25) have been seted up to cylinder (8) upper end surface, the through-hole (25) outside be equipped with cylinder (8) fixed connection's regulation section of thick bamboo (10), adjust a section of thick bamboo (10) slidable mounting have second piston (26), the one side middle part position that cylinder (8) were kept away from in a section of thick bamboo (10) is fixed with internal thread cover (14), internal thread cover (14) female connection has threaded rod (12), threaded rod (12) one end extend to adjust in a section of thick bamboo (10) and with second piston (26) fixed connection, threaded rod (12) are kept away from the one end of second piston (26) and are installed handle (13).

2. The negative pressure aspirator according to claim 1, wherein: threaded connection has first locknut (11) on threaded rod (12), first locknut (11) set up between internal thread cover (14) and handle (13).

3. The negative pressure aspirator according to claim 1, wherein: coupling assembling includes spliced pole (18), spliced pole (18) upper end is rotated with first piston (22) and is connected, threaded hole (24) are seted up to spliced pole (18) lower surface middle part position, threaded hole (24) female connection has screw thread post (20), screw thread post (20) lower extreme and electric putter (21) expansion end fixed connection.

4. The negative pressure aspirator according to claim 3, wherein: and a second locknut (19) is connected to the threaded column (20) in a threaded manner, and the second locknut (19) is arranged between the first piston (22) and the electric push rod (21).

5. The negative pressure aspirator according to claim 3, wherein: the outer surface of the upper end of the connecting column (18) is provided with a bearing (23), and the outer ring of the bearing (23) is fixedly connected with the first piston (22).

6. The negative pressure aspirator according to claim 1, wherein: cylinder (8) external surface fixation has two first branch (15), the one end and bottle (1) fixed connection of cylinder (8) are kept away from in first branch (15), electric putter (21) cylinder body end fixedly connected with two second branch (17), the one end and bottle (1) fixed connection of electric putter (21) are kept away from in second branch (17).

7. The negative pressure aspirator according to claim 6, wherein: the outer fixed surface of bottle (1) has sand grip (16), sand grip (16) and bottle (1) are the integrated into one piece structure, the one end and sand grip (16) fixed connection of cylinder (8) are kept away from in first branch (15), the one end and sand grip (16) fixed connection of electric putter (21) are kept away from in second branch (17).

8. The negative pressure aspirator according to claim 1, wherein: the outer surface of the upper end of the bottle body (1) is fixedly connected with a circular ring (4), a buckle (3) is connected in the circular ring (4) in a clamping mode, and a cloth belt ring (2) is tied in the buckle (3) in a tying mode.