Negative pressure barrel with replaceable connecting seat
By adopting a replaceable connecting seat and tee pipe structure in the negative pressure barrel, the problem of the loosening of the negative pressure barrel connection is solved, and a higher sealing and longer service life is achieved.
Patent Information
- Application Number
- CN202420446118.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-08
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-03-08
AI Technical Summary
After the existing negative pressure barrels are repeatedly installed and disassembled, the connection between the tee pipe and the cylinder is prone to loosen, resulting in a reduction in sealing and affecting waste liquid absorption.
A negative pressure barrel with replaceable connecting seat is designed, adopting a tee pipe structure, including a screw, a locking nut and a tee joint. The sealing ring is pressed through the locking nut and flange, and the eccentric cone sleeve and an eccentric cone hole are combined to ensure the stable locking of the tee pipe.
It effectively improves the sealing of the negative pressure barrel, prevents waste liquid leakage, extends the use time, and facilitates replacement of the tee pipe to maintain sealing performance.
Smart Images
Figure CN222549762U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of medical equipment, and in particular relates to a negative pressure barrel with a replaceable connecting seat. Background Art
[0002] During surgeries in operating rooms, emergency rooms, etc. that require the removal of blood, sputum, human tissue or body fluids from patients, a negative pressure suction system is required to absorb and preserve these medical waste liquids, thereby eliminating secondary contamination in the hospital.
[0003] The existing negative pressure suction system mainly includes a bracket and a plurality of collecting cylinders fixed on the bracket. Each collecting cylinder includes a soft bag, a hard cylinder and a top cover. The soft bag is arranged in the hard cylinder, and there is a gap between the soft bag and the inner wall of the hard cylinder. A three-way joint connected to the gap between the soft bag and the inner wall of the hard cylinder is provided on the side wall of the hard cylinder. The top cover is arranged at the mouth of the hard cylinder, and the top cover is sealed and connected to the soft bag, and an interface connected to the soft bag is provided on the top cover. At present, the connection between the three-way pipe and the cylinder of the negative pressure barrel is easy to loosen after the pipe connected to the negative pressure system is repeatedly installed and disassembled, resulting in reduced sealing of the negative pressure barrel and affecting the absorption of waste liquid. Utility Model Content
[0004] Based on the problems mentioned in the above background technology, the utility model provides a negative pressure barrel with a replaceable connecting seat, which is used to solve the problem that the connection between the three-way pipe and the cylinder body of the current negative pressure barrel is easy to loosen after repeated installation and disassembly of the pipe connected to the negative pressure system, resulting in reduced sealing of the negative pressure barrel and affecting the absorption of waste liquid.
[0005] The technical solution adopted by the utility model is as follows:
[0006] A negative pressure barrel with a replaceable connecting seat comprises a cylinder body and a cylinder cover, the cylinder cover is provided with a first connecting port and a second connecting port, a three-way pipe is installed on the cylinder body, a through hole is opened on the side wall of the cylinder body, the three-way pipe comprises a screw, a locking nut and a three-way joint, the screw is passed through the through hole, a flange is provided at one end of the screw, an air passage is opened on the screw, a first sealing ring and a second sealing ring are sleeved on the screw, the first sealing ring and the second sealing ring are respectively located on the inner and outer sides of the cylinder body, the locking nut and the three-way joint are threadedly connected to the screw, an eccentric cone sleeve is provided at one end of the locking nut, and an eccentric cone hole matching the eccentric cone sleeve is opened on the three-way joint.
[0007] On the basis of the above technical solution, the utility model also makes the following improvements:
[0008] Furthermore, the three-way pipe is a plastic structure, which will not rust and is easy to clean, and is also easy to reduce costs.
[0009] Furthermore, the cylinder cover is provided with a third connection port, and a negative pressure gauge is screwed on the third connection port. By installing the negative pressure gauge, the first connection port and the second connection port can be closed after the cylinder is connected to negative pressure to detect whether the cylinder is leaking.
[0010] Furthermore, a connecting belt is installed on the third connection port, a collar is installed on the connecting belt, and a plugging head matching the third connection port is sleeved inside the collar. After the negative pressure gauge is removed, the plugging head is installed in the third connection port to close the third connection port, and then the negative pressure gauge can be retracted. There is no need to install a negative pressure machine in each negative pressure barrel for a long time, which is convenient for reducing the number of negative pressure gauges used.
[0011] Further, a placing rack is sleeved on the cylinder, and a hook is provided on the placing rack. Under the effect of the placing rack, the negative pressure barrel can be stably placed on the ground, and the negative pressure barrel can also be hung on the bed through the hook.
[0012] Beneficial effects of the utility model:
[0013] The tee tube uses the locking nut and flange to press the first sealing ring and the second sealing ring against the surface of the cylinder. At the same time, the locking nut is not easy to loosen under the cooperation of the eccentric cone sleeve and the eccentric cone hole, and can maintain good sealing ability. If the tee tube loosens after a period of use, resulting in a decrease in sealing performance, the tee tube can be re-locked by adjusting the locking nut, or a new tee tube can be replaced. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The present invention can be further described by the non-limiting embodiments given in the accompanying drawings;
[0015] Figure 1 This is a schematic structural diagram of a negative pressure barrel with a replaceable connecting seat in an embodiment of the utility model;
[0016] Figure 2 It is a schematic diagram of the longitudinal section structure of a negative pressure barrel with a replaceable connecting seat in an embodiment of the utility model;
[0017] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;
[0018] Figure 4 This is a schematic diagram of the structure of a three-way pipe in an embodiment of the utility model;
[0019] Figure 5 This is a schematic diagram of the structure of the placement rack in the embodiment of the utility model;
[0020] The main component symbols are described as follows:
[0021] Cylinder body 1, through hole 11, cylinder cover 2, first connecting port 21, second connecting port 22, third connecting port 23, negative pressure gauge 24, plugging head 25, connecting belt 26, collar 261, tee pipe 3, screw 31, flange 311, airway 312, first sealing ring 321, second sealing ring 322, locking nut 33, eccentric cone sleeve 331, tee joint 34, eccentric cone hole 341, placement rack 4, hook 41. DETAILED DESCRIPTION
[0022] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.
[0023] like Figure 1 to Figure 4 As shown, a negative pressure barrel with a replaceable connecting seat includes a barrel body 1 and a barrel cover 2. The barrel body 1 is used to place a soft bag, and the soft bag and the barrel cover 2 are sealed and connected. The barrel cover 2 is provided with a first connecting port 21 and a second connecting port 22. A three-way pipe 3 is installed on the barrel body 1. A through hole 11 is opened on the side wall of the barrel body 1. The three-way pipe 3 includes a screw rod 31, a locking nut 33 and a three-way joint 34. The screw rod 31 is inserted into the through hole 11. A flange 311 is provided at one end of the screw rod 31. An airway 312 is opened on the screw rod 31 for extracting air between the soft bag and the barrel body 1. A first sealing ring 321 and a second sealing ring 322 are sleeved on the screw rod 31. The sealing ring 322, the first sealing ring 321 and the second sealing ring 322 are respectively located on the inner and outer sides of the cylinder 1, the locking nut 33 and the tee joint 34 are screwed on the screw 31, and the first sealing ring 321 and the second sealing ring 322 can be pressed against the wall of the cylinder 1 by rotating the locking nut 33 to shorten the distance between the flange 311 and the locking nut 33. An eccentric cone sleeve 331 is provided at one end of the locking nut 33, and an eccentric cone hole 341 matching the eccentric cone sleeve 331 is provided on the tee joint 34. When the tee joint 34 is installed on the screw 31 and fits with the locking nut 33, the locking nut 33 can be prevented from loosening.
[0024] Specifically, the three-way pipe 3 is a plastic structure, which will not rust and is easy to clean, while also being easy to reduce costs.
[0025] Specifically, the cylinder cover 2 is provided with a third connection port 23, and a negative pressure gauge 24 is screwed on the third connection port 23. By installing the negative pressure gauge 24, the first connection port 21 and the second connection port 22 can be closed after the cylinder body 1 is connected to negative pressure to detect whether the cylinder body 1 is leaking.
[0026] Specifically, a connecting belt 26 is installed on the third connecting port 23, and a ring 261 is installed on the connecting belt 26. A sealing head 25 matching the third connecting port 23 is sleeved inside the ring 261. After the negative pressure gauge 24 is removed, the sealing head 25 is installed in the third connecting port 23 to close the third connecting port 23, and then the negative pressure gauge 24 can be retracted. There is no need to install the negative pressure machine 23 in each negative pressure barrel for a long time, which is convenient for reducing the number of negative pressure gauges 24 used.
[0027] Specifically, Figure 5 As shown, a placement rack 4 is sleeved on the cylinder 1, and a hook 41 is provided on the placement rack 4. With the help of the placement rack 4, the negative pressure barrel can be stably placed on the ground, and the negative pressure barrel can also be hung on the bed through the hook 41.
[0028] When in use, the soft bag is installed on the cylinder cover 2 and then the cylinder cover 2 is installed on the cylinder body 1. The first connection port 21 and the second connection port 22 are both connected to the inside of the soft bag. Then, hoses are installed at both ends of the three-way joint 34. One hose on the three-way joint 34 is connected to the first connection port 21, and the other is connected to the negative pressure system in the hospital. The second connection port 22 is used to install a straw for sucking waste liquid. When it is necessary to detect the sealing of the negative pressure barrel, remove the plug 25 and install the negative pressure gauge 24 on the third connection port 23, and then close the connection port 22, and observe the pressure values on the negative pressure gauge 24 and the negative pressure system.
[0029] The above is a detailed introduction to a negative pressure barrel with a replaceable connecting seat provided by the utility model. The description of the specific embodiment is only used to help understand the method and core idea of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.
Claims
1. A negative pressure barrel with a replaceable connection seat, comprising a barrel (1) and a barrel cover (2), wherein the barrel cover (2) is provided with a first connection port (21) and a second connection port (22), and a three-way pipe (3) is installed on the barrel (1), characterized in that: The side wall of the cylinder (1) is provided with a through hole (11), and the three-way pipe (3) comprises a screw (31), a locking nut (33) and a three-way joint (34). The screw (31) is inserted into the through hole (11), one end of the screw (31) is provided with a flange (311), an air passage (312) is provided on the screw (31), a first sealing ring (321) and a second sealing ring (322) are sleeved on the screw (31), and the first sealing ring (321) and the second sealing ring (322) are respectively located on the inner and outer sides of the cylinder (1), the locking nut (33) and the three-way joint (34) are screwed on the screw (31), one end of the locking nut (33) is provided with an eccentric cone sleeve (331), and the three-way joint (34) is provided with an eccentric cone hole (341) matching the eccentric cone sleeve (331).
2. A negative pressure barrel with a replaceable connecting seat according to claim 1, characterized in that: The three-way pipe (3) is a plastic structure.
3. A negative pressure barrel with a replaceable connecting seat according to claim 2, characterized in that: The cylinder cover (2) is provided with a third connecting port (23), and a negative pressure gauge (24) is screwed onto the third connecting port (23).
4. The negative pressure barrel with a replaceable connecting seat according to claim 3, characterized in that: A connecting belt (26) is installed on the third connecting port (23), a sleeve ring (261) is installed on the connecting belt (26), and a sealing head (25) matching the third connecting port (23) is sleeved inside the sleeve ring (261).
5. The negative pressure barrel with a replaceable connecting seat according to claim 1, characterized in that: A placement rack (4) is sleeved on the cylinder (1), and a hook (41) is provided on the placement rack (4).