Negative pressure drainage ball with built-in one-way valve

Abstract

The utility model discloses a negative pressure drainage ball with a built-in one-way valve, which belongs to the technical field of drainage balls and is characterized in that one-way valve connecting sleeves are mounted in a first connecting piece and a second connecting piece, limiting grooves are formed in the one-way valve connecting sleeves in a surrounding manner, and limiting blocks are arranged in the limiting grooves and mounted on the outer side of a one-way valve main body; a sliding groove for limiting the one-way valve element is formed in the one-way valve body, springs are installed on the three sides of the one-way valve element, baffles are distributed on the inner ring of the one-way valve element, an inlet and an outlet are formed in the two ends of the one-way valve body respectively, and the one-way valve element slides along the sliding groove. When the one-way valve element slides to one side, the inlet and the outlet are sealed to prevent materials from entering the negative-pressure drainage ball, when the one-way valve element slides to the other side, the baffle blocks the one-way valve body to achieve the gas and liquid guiding function, the one-way valve body and the negative-pressure drainage ball are connected in a sleeved and clamped mode, blocking is conducted through the baffle, and the one-way valve is convenient to replace. And the service life of the negative pressure drainage ball is prolonged.

Description

Technical Field

[0001] The utility model relates to a negative pressure drainage ball with a built-in one-way valve, belonging to the technical field of drainage balls. Background Art

[0002] For example, the application number: CN104083807B discloses an inflatable negative pressure drainage ball that can be folded and compressed, is easy to carry, has a large negative pressure, and has the functions of a negative pressure drainage ball and a breathing ball. It includes a negative pressure cavity, and the outer wall of the negative pressure cavity is provided with a first joint that is sealed and connected to the negative pressure cavity, and the first joint is connected to the inner cavity of the negative pressure cavity; the outer surface of the negative pressure cavity is covered with an inflatable bracket that can form a three-dimensional shape after inflation, and the inflatable bracket covers the outer surface of the negative pressure cavity and forms a whole. Compared with previous technologies, it can be folded and compressed and is easy to carry to meet the needs of military operations. After the inflatable bracket is inflated and bent and stretched to form a negative pressure vacuum, the pressure of the vacuum is increased and the volume of the negative pressure ball can also be adjusted according to specific needs. After a one-way valve is set at the front end or tail end of the liquid inlet joint and the liquid discharge joint, and a ventilator adapter is connected to the liquid discharge joint, it can be used as a medical breathing ball, realizing multiple uses of one item.

[0003] Based on the search and analysis, the existing technology still has shortcomings:

[0004] The two-end one-way valves in the prior art are fixed structures. If used for too long, the springs may loosen, resulting in a reduction in the service life of the drainage ball. Therefore, a negative pressure drainage ball with a built-in one-way valve is needed to improve the above-mentioned shortcomings. Utility Model Content

[0005] The main purpose of the utility model is to provide a negative pressure drainage ball with a built-in telescopic one-way valve.

[0006] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0007] A negative pressure drainage ball with a built-in one-way valve comprises a negative pressure drainage ball, and two ends of the negative pressure drainage ball are respectively installed with a connecting piece 1 and a connecting piece 2;

[0008] A one-way valve connecting sleeve is installed in the connecting piece 1 and the connecting piece 2, a limiting groove is arranged around the one-way valve connecting sleeve, a one-way valve body is arranged inside the one-way valve connecting sleeve, and a limiting block is installed on the outer ring of the one-way valve body;

[0009] A valve core group is installed in the one-way valve body.

[0010] Preferably, the valve core assembly includes a one-way valve core, a stem, a spring, a sliding groove and a sleeve;

[0011] A sliding groove is provided in the one-way valve body, a one-way valve core is slidably connected in the sliding groove, a pillar is installed on the inner ring of the one-way valve core, a spring is installed on the outer ring of the one-way valve core, the spring is telescopically connected to the one-way valve body, and a sleeve is installed on one side of the one-way valve core.

[0012] Preferably, one side of the connecting piece 1 and the connecting piece 2 is covered with a baffle that blocks the one-way valve body.

[0013] Preferably, both ends of the one-way valve body are respectively provided with an inlet and an outlet, and the envelope is covered on the inner side of the inlet and the outlet.

[0014] Preferably, the limiting block on the one-way valve body is placed in the limiting groove and fixedly connected.

[0015] Preferably, the limiting groove and the limiting block are arc-shaped structures.

[0016] Beneficial technical effects of the utility model:

[0017] The utility model provides a negative pressure drainage ball with a built-in one-way valve, the negative pressure drainage ball is a negative pressure ball main body structure, the two ends of the negative pressure drainage ball are respectively installed with a connecting piece 1 and a connecting piece 2, a one-way valve connecting sleeve is installed in the connecting piece 1 and the connecting piece 2, a limiting groove is arranged around the one-way valve connecting sleeve, a limiting block is arranged in the limiting groove, the limiting block is installed on the outside of the one-way valve body, a sliding groove for limiting the one-way valve core is arranged in the one-way valve body, and the one-way valve core is installed on three sides There is a spring, and the inner circle of the one-way valve core is distributed with pillars. Inlet and outlet are respectively opened at both ends of the one-way valve body. The one-way valve core slides along the sliding groove. When the one-way valve core slides to one side, the inlet and outlet are sealed to prevent material from entering the negative pressure drainage ball. When the one-way valve core slides to the other side, the pillars hold the one-way valve body to realize the function of guiding air and liquid. The one-way valve body and the negative pressure drainage ball are connected by overlapping and locking, and are blocked by a baffle, so that the one-way valve is easy to replace, and the service life of the negative pressure drainage ball is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of a device according to a preferred embodiment of a negative pressure drainage ball with a built-in one-way valve of the utility model;

[0019] Figure 2 A side cross-sectional view of a one-way valve according to a preferred embodiment of a negative pressure drainage ball with a built-in one-way valve of the utility model;

[0020] Figure 3 A side cross-sectional view of a one-way valve according to a preferred embodiment of a negative pressure drainage ball with a built-in one-way valve of the utility model;

[0021] Figure 4The figure is a schematic diagram of the overall structure of a preferred embodiment of a negative pressure drainage ball with a built-in one-way valve according to the utility model.

[0022] In the figure: 1. negative pressure drain; 2. connecting piece 1; 3. connecting piece 2; 4. one-way valve connecting sleeve; 5. limiting groove; 6. one-way valve body; 7. limiting block; 8. baffle; 9. inlet and outlet; 11. one-way valve core; 12. pillar; 13. spring; 14. sliding groove; 15. sealing sleeve. DETAILED DESCRIPTION

[0023] In order to make the technical solution of the present invention more clear and specific to those skilled in the art, the present invention is further described in detail below in conjunction with embodiments and drawings, but the implementation methods of the present invention are not limited thereto.

[0024] like Figure 1 - Figure 4 As shown, the present embodiment provides a negative pressure drainage ball with a built-in one-way valve, comprising a negative pressure drainage ball 1, with a connector 1 2 and a connector 2 3 respectively installed at both ends of the negative pressure drainage ball 1;

[0025] A one-way valve connecting sleeve 4 is installed in the connecting piece 1 2 and the connecting piece 2 3. A limiting groove 5 is arranged around the one-way valve connecting sleeve 4. A one-way valve body 6 is sleeved inside the one-way valve connecting sleeve 4. A limiting block 7 is installed on the outer ring of the one-way valve body 6.

[0026] A valve core group is installed in the one-way valve body 6 .

[0027] The valve core assembly includes a one-way valve core 11, a pillar 12, a spring 13, a sliding groove 14 and a sleeve 15;

[0028] A sliding groove 14 is provided in the one-way valve body 6, and a one-way valve core 11 is slidably connected in the sliding groove 14. A pillar 12 is installed on the inner ring of the one-way valve core 11, and a spring 13 is installed on the outer ring of the one-way valve core 11. The spring 13 is telescopically connected to the one-way valve body 6, and a sleeve 15 is installed on one side of the one-way valve core 11.

[0029] One side of the connecting piece 1 2 and the connecting piece 2 3 is covered with a baffle 8 that blocks the one-way valve body 6 .

[0030] Inlet and outlet ports 9 are respectively formed at both ends of the one-way valve body 6 , and a sleeve 15 covers the inner sides of the inlet and outlet ports 9 .

[0031] The limiting block 7 on the one-way valve body 6 is inserted into the limiting groove 5 and fixedly connected.

[0032] The limiting groove 5 and the limiting block 7 are arc-shaped structures.

[0033] like Figure 1 - Figure 4As shown, the working process of a negative pressure drainage ball with a built-in one-way valve provided in this embodiment is as follows: the inlet and outlet directions are adjusted according to the direction in which the one-way valve body 6 is installed, and the catheter is respectively connected to the connector 1 2 and the connector 2 3 at both ends of the negative pressure drainage ball 1. After the connection, the negative pressure drainage ball 1 is squeezed through the one-way valve body 6 on one side to form a single-in structure, and the one-way valve body 6 on the other side of the negative pressure drainage ball 1 is a single-outlet structure. When disassembly is required, the baffle 8 is opened to take the one-way valve body 6 out of the one-way valve connecting sleeve 4.

[0034] Example

[0035] like Figure 1 - Figure 4 As shown, the negative pressure drainage ball 1 is a negative pressure ball main body structure, and the two ends of the negative pressure drainage ball 1 are respectively installed with a connecting piece 2 and a connecting piece 3, and a one-way valve connecting sleeve 4 is installed in the connecting piece 2 and the connecting piece 3. A limiting groove 5 is arranged around the one-way valve connecting sleeve 4, and a limiting block 7 is arranged in the limiting groove 5. The limiting block 7 is installed on the outside of the one-way valve body 6. A sliding groove 14 for limiting the one-way valve core 11 is arranged in the one-way valve body 6, and springs 13 are installed on three sides of the one-way valve core 11. The inner circle of 11 is distributed with pillars 12, and the two ends of the one-way valve body 6 are respectively provided with inlet and outlet 9, and the one-way valve core 11 slides along the sliding groove 14. When the one-way valve core 11 slides to one side, the inlet and outlet 9 are sealed to prevent materials from entering the negative pressure drainage ball 1. When the one-way valve core 11 slides to the other side, the pillars 12 hold the one-way valve body 6 to realize the function of guiding air and liquid. The one-way valve body 6 and the negative pressure drainage ball 1 are connected by overlapping and clamping, and are blocked by the baffle 8, so that the one-way valve is easy to replace, thereby improving the service life of the negative pressure drainage ball 1.

[0036] The above is only a further embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the scope disclosed by the present invention according to the technical solution and concept of the present invention, which fall within the protection scope of the present invention.

Claims

1. A negative pressure drainage ball with a built-in one-way valve, comprising a negative pressure drainage ball (1), wherein two ends of the negative pressure drainage ball (1) are respectively provided with a connecting piece 1 (2) and a connecting piece 2 (3); Features: A one-way valve connecting sleeve (4) is installed in the connecting piece 1 (2) and the connecting piece 2 (3), a limiting groove (5) is arranged around the one-way valve connecting sleeve (4), a one-way valve body (6) is arranged inside the one-way valve connecting sleeve (4), and a limiting block (7) is installed on the outer ring of the one-way valve body (6); A valve core group is installed in the one-way valve body (6).

2. The negative pressure drainage ball with a built-in one-way valve according to claim 1, characterized in that: The valve core assembly comprises a one-way valve core (11), a support column (12), a spring (13), a sliding groove (14) and a sleeve (15); A sliding groove (14) is provided in the one-way valve body (6), a one-way valve core (11) is slidably connected in the sliding groove (14), a pillar (12) is installed on the inner ring of the one-way valve core (11), a spring (13) is installed on the outer ring of the one-way valve core (11), the spring (13) is telescopically connected to the one-way valve body (6), and a sleeve (15) is installed on one side of the one-way valve core (11).

3. The negative pressure drainage ball with a built-in one-way valve according to claim 2, characterized in that: One side of the connecting piece 1 (2) and the connecting piece 2 (3) is covered with a baffle (8) for blocking the one-way valve body (6).

4. The negative pressure drainage ball with a built-in one-way valve according to claim 3, characterized in that: The two ends of the one-way valve body (6) are respectively provided with an inlet and an outlet (9), and a sealing sleeve (15) covers the inner side of the inlet and outlet (9).

5. The negative pressure drainage ball with a built-in one-way valve according to claim 4, characterized in that: The limiting block (7) on the one-way valve body (6) is placed in the limiting groove (5) for fixed connection.

6. The negative pressure drainage ball with a built-in one-way valve according to claim 5, characterized in that: The limiting groove (5) and the limiting block (7) are arc-shaped structures.

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