Anti-overflow negative pressure drainage bottle
By combining a flexible corrugated plastic bottle with a support rod, upper support plate, and height adjustment screw, the problems of inconvenient adjustment and low stability of existing anti-overflow negative pressure drainage bottles are solved, achieving the effect of quick volume adjustment and structural stability.
Patent Information
- Application Number
- CN202423007788.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2034-12-06
AI Technical Summary
Existing anti-overflow negative pressure drainage bottles are not convenient to adjust in size and have low structural stability after adjustment.
The design incorporates a flexible corrugated plastic bottle, combined with a support pole, upper support plate, and height adjustment screw. The bottle size can be adjusted by rotating the height adjustment screw, and the structural stability is enhanced by springs and locking bolts.
It enables flexible adjustment and rapid adjustment of the drainage bottle volume, improves structural stability, and facilitates carrying and assembly.
Smart Images

Figure CN223930467U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drainage bottle technology, specifically an anti-overflow negative pressure drainage bottle. Background Technology
[0002] Drainage is very common in clinical practice, such as for ascites, pleural effusion, abscess, etc. In the past, it was done by aspirating with a syringe, which was cumbersome and required aspiration one tube at a time, resulting in low efficiency. To overcome this drawback, negative pressure drainage bottles connected to negative pressure devices are now commonly used in clinical practice for drainage, which is quick and convenient.
[0003] The prior art, patent application number 202320122428.8, describes an anti-overflow negative pressure drainage bottle, comprising a first bottle body, a second bottle body, a negative pressure tube, a sealing cap, and a drainage tube. The outer surface of the first bottle body is provided with a second scale. A threaded connector is fixedly connected to the upper end of the first bottle body, and a sealing cap is threadedly connected to the outer surface of the threaded connector. The negative pressure tube and the drainage tube pass through and are connected to the sealing cap. An anti-overflow groove is fixedly connected to the lower end of the negative pressure tube, and an anti-overflow ball is provided inside the anti-overflow groove. A slider is fixedly connected to the outer surface of the first bottle body, and a rubber pad is fixedly connected to one side of the slider. A sliding groove is provided on the inner wall of the second bottle body, and the first bottle body and the second bottle body are slidably connected. In this invention, by setting an anti-overflow groove and an anti-overflow ball, when the liquid in the negative pressure drainage bottle overflows, the anti-overflow ball inside the anti-overflow groove rises under the action of buoyancy. The anti-overflow ball seals the opening of the negative pressure tube, which can prevent liquid from entering the negative pressure tube and prevent the negative pressure device from malfunctioning. However, it is not convenient to adjust the size of the drainage bottle, and the stability of the adjusted bottle structure is low. Utility Model Content
[0004] The purpose of this utility model is to provide an anti-overflow negative pressure drainage bottle to solve the problems in the prior art where it is inconvenient to adjust the size of the drainage bottle and the bottle structure has low stability after adjustment.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an anti-overflow negative pressure drainage bottle, comprising a base plate, a drainage bottle body provided on the upper side of the base plate, the drainage bottle body being a flexible corrugated plastic bottle, a top plate provided at one end of the drainage bottle body, an inlet connector and a negative pressure connector provided on the upper side of the top plate, a detachable upright rod provided on one side of the base plate, and an upper support plate slidably provided on the outer side of the two upright rods, a spring in a compressed state sleeved on the outside of the upright rod between the base plate and the top plate, the upper support plate being located on the upper part of the top plate, and a height adjustment screw provided in the middle of the upper support plate.
[0006] Furthermore, a connecting seat is provided on one side of the base plate, and a threaded groove is provided on one side of the connecting seat to be threadedly connected to one end of the upright.
[0007] Furthermore, the length of the upper support plate is greater than the distance between the two uprights, and sliding holes are provided inside both ends of the upper support plate.
[0008] Furthermore, the upper support plate on the inner wall of the sliding hole is also provided with a locking hole, and a locking bolt is provided in the thread of the locking hole.
[0009] Furthermore, a pad is fixedly provided at one end of the height adjusting screw, and an adjusting nut is provided at the other end of the height adjusting screw.
[0010] Furthermore, the liquid inlet connector is provided with a first valve, and the negative pressure connector is provided with a second valve, wherein the second valve is an anti-overflow valve.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] 1. This utility model uses a vertical rod, an upper support plate, and a height adjustment screw provided between the bottom plate and the top plate. A spring in a compressed state is sleeved on the outside of the vertical rod between the bottom plate and the top plate, so that the height adjustment screw can be rotated to adjust the height of the top plate, thereby adjusting the size of the drainage bottle to meet the drainage needs of different volumes. Moreover, the volume adjustment is convenient and quick, and the adjusted bottle structure has high stability.
[0013] 2. The present invention also has a connecting seat on one side of the base plate, and a threaded groove on one side of the connecting seat that is threaded to one end of the upright. The upper support plate is slidably provided on the outer side of the two uprights, so that the uprights and the upper support plate can be disassembled when not in use, making them easy to carry and use, and also easy and quick to assemble.
[0014] 3. The upper support plate of this utility model is also provided with a locking hole on the inner wall of the sliding hole. The locking hole is provided with a locking bolt, so that the upper support plate that is slidably sleeved on the outside of the upright can be locked by rotating the locking bolt, which facilitates the improvement of the stability of the upper support plate in the lateral support. Attached Figure Description
[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the connection structure between the upright and the upper support plate of this utility model;
[0018] Figure 3 This is a schematic diagram of the upper support plate structure of this utility model.
[0019] In the diagram: 1. Base plate; 2. Drainage bottle body; 3. Top plate; 4. Liquid inlet connector; 5. Negative pressure connector; 6. Connecting seat; 7. Upright rod; 8. Spring; 9. Upper support plate; 10. Sliding hole; 11. Locking bolt; 12. Height adjustment screw; 13. Pad; 14. Second valve; 15. First valve; 16. Locking hole. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figure 1 , Figure 2 , Figure 3 In this embodiment of the utility model, an anti-overflow negative pressure drainage bottle includes a base plate 1, a drainage bottle body 2 on the upper side of the base plate 1, and the drainage bottle body 2 is a flexible corrugated plastic bottle. A top plate 3 is provided at one end of the drainage bottle body 2. An inlet connector 4 and a negative pressure connector 5 are also provided on the upper side of the top plate 3. A first valve 15 is provided on the inlet connector 4, and a second valve 14 is provided on the negative pressure connector 5. The second valve 14 is an anti-overflow valve. A detachable upright rod 7 is provided on one side of the base plate 1, and an upper support plate 9 is slidably provided on the outer sides of the two upright rods 7. The base plate 1 and the top plate 3... The uprights 7 are fitted with compressed springs 8. The upper support plate 9 is set on the top plate 3. The length of the upper support plate 9 is greater than the distance between the two uprights 7. The upper support plate 9 has sliding holes 10 at both ends and a height adjustment screw 12 in the middle of the upper support plate 9. The top plate 3 can be raised and lowered by rotating the height adjustment screw 12, thereby adjusting the size of the drainage bottle 2 to meet the drainage needs of different volumes. Moreover, the volume adjustment is convenient and quick, and the bottle structure is highly stable after adjustment.
[0022] like Figure 1 and Figure 2 As shown, in order to facilitate the disassembly and assembly of the upright 7 and the upper support plate 9, a connecting seat 6 is also provided on one side of the base plate 1. The connecting seat 6 has a threaded groove on one side that is threaded to one end of the upright 7, so that the upright 7 and the upper support plate 9 can be disassembled when not in use, making them easy to carry and use, and also convenient and quick to assemble.
[0023] like Figure 2 and Figure 3As shown, in order to improve the stability of the upper support plate 9 in lateral support, a locking hole 16 is also provided on the upper support plate 9 on the inner wall of the sliding hole 10. The locking hole 16 is threaded with a locking bolt 11, so that the upper support plate 9, which is slidably sleeved on the outside of the upright 7, can be locked by rotating the locking bolt 11, which facilitates the improvement of the stability of the upper support plate 9 in lateral support.
[0024] like Figure 1 and Figure 2 As shown, in order to rotate and adjust the height adjustment screw 12, a pad 13 is fixedly provided at one end of the height adjustment screw 12, which increases the contact area between one end of the height adjustment screw 12 and the top plate 3, which helps to improve the stability of the connection between one end of the height adjustment screw 12 and one end of the top plate 3. An adjustment nut is provided at the other end of the height adjustment screw 12 to facilitate the rotation and adjustment of the height adjustment screw 12.
[0025] The working principle and usage process of this utility model are as follows: In use, the drainage bottle body 2, the upright rod 7, the upper support plate 9 and the height adjustment screw 12 are provided between the bottom plate 1 and the top plate 3. The upright rod 7 between the bottom plate 1 and the top plate 3 is fitted with a compressed spring 8, so that the top plate 3 can be raised and lowered by rotating the height adjustment screw 12, thereby adjusting the size of the drainage bottle body 2 to meet the drainage needs of different volumes. Moreover, the volume adjustment is convenient and quick, and the bottle body structure has high stability after adjustment.
[0026] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. An anti-overflow negative pressure drainage bottle, comprising a base plate (1), characterized in that: The bottom plate (1) is provided with a drainage bottle body (2) on the upper side, and the drainage bottle body (2) is a flexible corrugated plastic bottle. The drainage bottle body (2) is provided with a top plate (3) at one end. The top plate (3) is also provided with an inlet connector (4) and a negative pressure connector (5) on the upper side. The bottom plate (1) is provided with a detachable upright rod (7) on one side, and an upper support plate (9) is slidably provided on the outer side of the two upright rods (7). A spring (8) in a compressed state is sleeved on the outside of the upright rod (7) between the bottom plate (1) and the top plate (3). The upper support plate (9) is set on the upper part of the top plate (3), and a height adjustment screw (12) is provided in the middle of the upper support plate (9).
2. The anti-overflow negative pressure drainage bottle according to claim 1, characterized in that: The base plate (1) is also provided with a connecting seat (6) on one side, and the connecting seat (6) is provided with a threaded groove that is threaded to one end of the upright (7).
3. The anti-overflow negative pressure drainage bottle according to claim 1, characterized in that: The length of the upper support plate (9) is greater than the distance between the two uprights (7), and the upper support plate (9) has sliding holes (10) inside at both ends.
4. The anti-overflow negative pressure drainage bottle according to claim 3, characterized in that: The upper support plate (9) on the inner wall of the sliding hole (10) is also provided with a locking hole (16), and a locking bolt (11) is provided in the internal thread of the locking hole (16).
5. The anti-overflow negative pressure drainage bottle according to claim 1, characterized in that: One end of the height adjusting screw (12) is fixedly provided with a pad (13), and the other end of the height adjusting screw (12) is provided with an adjusting nut.
6. The anti-overflow negative pressure drainage bottle according to claim 1, characterized in that: The liquid inlet connector (4) is provided with a first valve (15), and the negative pressure connector (5) is provided with a second valve (14), and the second valve (14) is an anti-overflow valve.
Citation Information
Patent Citations
Anti-overflow negative pressure drainage bottle
CN219481021U