Quick connection waterproof joint for medical equipment

Abstract

The application relates to the technical field of conductive connection, in particular to a quick-connection waterproof joint for medical equipment. The waterproof joint comprises an insulating sleeve, a plug is fixedly connected to the insulating sleeve, a socket is inserted into the plug, the plug is provided with an insertion part and an expansion part, the expansion part is rotationally connected with support frames which are distributed in a circumferential direction at equal intervals, the support frames are made of elastic material, the support frames are provided with first pressing parts and second pressing parts, the plug is fixedly connected with a sealing sleeve, the sealing sleeve is made of elastic material, and the sealing sleeve is extruded with the socket to form double sealing under the pressing of the first pressing parts and the second pressing parts. Two annular contact surfaces are formed between the sealing sleeve and the socket, and impurities and water adhered to the socket are scraped off in the subsequent moving process, so that the impurities and water are far away from the electric connection position of the plug and the socket, the probability of water touching the electric connection position between the plug and the socket is reduced, and the normal work of the plug and the socket is ensured.

Description

Technical Field

[0001] This invention relates to the field of conductive connection technology, and more particularly to a quick-connect waterproof connector for medical devices. Background Technology

[0002] Quick-connect waterproof connectors for medical devices are specialized connectors that enable rapid plugging and unplugging, reliable connection, and effective prevention of liquid intrusion between devices and cables in humid medical environments requiring frequent disinfection. They are crucial for ensuring stable equipment operation and patient safety. Before use, check that the interface and sealing ring are clean and intact. Insert the connector strictly according to the alignment marks (such as key positions and colors). Power on the device only after hearing or feeling a clear locking sound / touch. Clean the connector daily with recommended medical disinfectant, avoid using excessively corrosive liquids, and regularly check for physical damage.

[0003] Existing connectors of this type typically achieve a sealing effect through a simple sealing ring. If the interface is not properly inspected before use, leaving water residue, the lack of a water-cleaning function can cause short circuits, leakage, and other dangers when the connector is powered on, seriously endangering the lives of patients and operators. Summary of the Invention

[0004] In order to overcome the shortcomings mentioned in the background art, the present invention provides a quick-connect waterproof connector for medical devices.

[0005] The technical solution is as follows: A quick-connect waterproof connector for medical devices includes an insulating sleeve, a plug fixedly connected to the insulating sleeve, a socket connected to the plug, the plug having a insertion part and an expansion part, the expansion part being rotatably connected to circumferentially spaced support frames, the support frames being made of elastic material, the support frames having a first pressing part and a second pressing part, a sealing sleeve fixedly connected to the side of the plug away from the insulating sleeve, the sealing sleeve being made of elastic material, the sealing sleeve enclosing all the support frames within it, the sealing sleeve being pressed by the first pressing part and the second pressing part to form a double seal with the socket.

[0006] As an improvement to the above solution, the diameter of the circle containing the inner side of all the first pressing parts is smaller than the diameter of the insertion part, and the diameter of the circle containing the inner side of all the second pressing parts is larger than the diameter of the insertion part.

[0007] As an improvement to the above solution, all the second pressing parts are jointly fixed with a first elastic ring, which is fixed to the sealing sleeve. The first elastic ring is used to make the sealing sleeve evenly adhere to the socket.

[0008] As an improvement to the above solution, all the first pressing parts are jointly fixedly connected to a second elastic ring, and the sealing sleeve is fixedly connected to the second elastic ring.

[0009] As an improvement to the above solution, the elastic coefficient of the support frame is greater than that of the second elastic ring, and the elastic coefficient of the second elastic ring is greater than that of the first elastic ring.

[0010] As an improvement to the above solution, the plug is fixed with a buckle made of elastic material, the socket is provided with a slot, and the buckle is provided with a limiting protrusion. The limiting protrusion is used to insert into the slot to limit the position of the plug and the socket.

[0011] As an improvement to the above solution, the plug is provided with a first mounting groove, and a hollow ring is fixedly connected in the first mounting groove, the hollow ring being pressed against the socket.

[0012] As an improvement to the above solution, the plug is provided with a second mounting groove, in which an airbag is fixedly connected. The airbag is made of elastic material, and the hollow ring and the airbag are connected by a pipe. Both are filled with gas, and the buckle and the airbag are pressed against each other.

[0013] As an improvement to the above solution, the plug is provided with a third mounting groove, the distance between the third mounting groove and the insulating sleeve is greater than the distance between the first mounting groove and the insulating sleeve, an annular sleeve is fixedly connected in the third mounting groove, and an equally spaced rubber ring is fixedly connected in the annular sleeve. Both the annular sleeve and the rubber ring are made of elastic material, and the rubber ring is pressed against the socket.

[0014] As an improvement to the above solution, the annular sleeve is filled with water-absorbing and expanding rubber, and the annular sleeve is provided with equally spaced connecting holes on the side near the sealing sleeve.

[0015] The beneficial effects of adopting the above technical solution are as follows: By forming two annular contact surfaces between the sealing sleeve and the socket, and scraping off the impurities and water attached to the socket during subsequent movement, the impurities and water are kept away from the electrical connection between the plug and the socket, thereby reducing the probability of water contact between the electrical connection between the plug and the socket and ensuring its normal operation.

[0016] The gap between two adjacent support frames is filled by the first and second elastic rings, making the annular contact surface between the sealing sleeve and the socket tighter and improving its sealing performance.

[0017] A seal is formed by pressing the hollow ring against the socket. After the plug and socket are connected, the buckle presses against the airbag to increase the pressure between the hollow ring and the socket, thus enhancing the seal.

[0018] When the rubber ring fails and water enters, the water enters the annular sleeve through the connecting hole and is absorbed by the water-absorbing and expanding rubber. The water-absorbing and expanding rubber expands and squeezes the annular sleeve until it contacts the socket to form a seal, thus forming a temporary seal to prevent further water from entering and ensuring the normal operation of the connector. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is an exploded view of the present invention; Figure 3 This is a three-dimensional structural diagram of the first and second elastic rings of the present invention; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 for Figure 3 Enlarged view of point B in the middle.

[0020] Parts and their numbers in the diagram: 1-Insulating sleeve, 2-Plug, 2001-Plug-in part, 2002-Expansion part, 201-First mounting groove, 202-Second mounting groove, 203-Third mounting groove, 3-Socket, 301-Card slot, 4-Support bracket, 401-First pressing part, 402-Second pressing part, 5-Sealing sleeve, 6-First elastic ring, 7-Second elastic ring, 8-Snap fastener, 801-Limiting protrusion, 9-Hollow ring, 10-Airbag, 11-Annular sleeve, 1101-Connecting hole, 12-Rubber ring. Detailed Implementation

[0021] The preferred technical solution of the present invention will be described in detail below with reference to the accompanying drawings.

[0022] Example 1 A quick-connect waterproof connector for medical devices, such as Figures 1-4As shown, the device includes an insulating sleeve 1, a plug 2 fixedly connected to the upper side of the insulating sleeve 1, a socket 3 inserted into the plug 2, and an annular groove provided in the socket 3. The inner and outer diameters of the annular groove match the inner and outer diameters of the plug 2. The plug 2 is provided with a insertion part 2001 and an expansion part 2002. The expansion part 2002 is rotatably connected to circumferentially spaced support frames 4. The support frames 4 are made of elastic material and are L-shaped. The support frames 4 are provided with a first pressing part 401 and a second pressing part 402. A sealing sleeve 5 is fixedly connected to the side of the plug 2 away from the insulating sleeve 1. The sealing sleeve 5 is made of elastic material and fits all the support frames 4 inside it. The sealing sleeve 5 is connected to the first pressing part 401 and the second pressing part 402. The pressing of part 2 and the compression of the socket 3 form a double seal. The sealing sleeve 5 can also be divided into upper and lower parts. The upper part is fixed to the plug 2 and all the second pressing parts 402, and the lower part is fixed to all the first pressing parts 401 and the plug 2. The second pressing parts 402 are longer than the first pressing parts 401. When the upper side of the second pressing parts 402 is attached to the socket 3, the angle between the second pressing parts 402 and the socket 3 is smaller than the angle between the first pressing parts 401 and the socket 3, which makes it easier to scrape off impurities and water from the socket 3. Furthermore, because the included angle between the second pressing parts 402 and the socket 3 is small, the sealing sleeve 5 has a larger contact area with the socket 3, improving its sealing effect. The diameter of the inner circle of all the first pressing parts 401 is smaller than the diameter of the plug part 2001, and the diameter of the inner circle of all the second pressing parts 402 is larger than the diameter of the plug part 2001, so that the socket 3 can push the first pressing parts 401 to rotate the support frame 4.

[0023] like Figures 2-4 As shown, all the second pressing parts 402 are jointly fixed with a first elastic ring 6, which is fixed to the sealing sleeve 5. The first elastic ring 6 is used to make the sealing sleeve 5 evenly adhere to the socket 3, and the elastic ring 6 is initially in a stretched state. All the first pressing parts 401 are jointly fixed with a second elastic ring 7, which is used to pull the support frame 4, so that the support frame 4 is in a state when the plug 2 and the socket 3 are not connected. Figure 4 As shown, the sealing sleeve 5 is fixedly connected to the second elastic ring 7, which is initially in a stretched state. The elastic coefficient of the support frame 4 is greater than that of the second elastic ring 7, which in turn is greater than that of the first elastic ring 6, thus enabling the second elastic ring 7 to pull the first elastic ring 6 apart via the support frame 4.

[0024] When using this device, plug 2 and socket 3 are connected together. During the connection process, socket 3 presses the first pressing part 401 through the sealing sleeve 5, causing the support frame 4 to rotate and the second elastic ring 7 to open until the second pressing part 402 is attached to socket 3 through the sealing sleeve 5. At this time, both the first pressing part 401 and the second pressing part 402 are bent and deformed. The two parts of the sealing sleeve 5 are tightly attached to socket 3 under the tight clamping of the first elastic ring 6 and the second elastic ring 7, forming a double seal. In the subsequent process of the sealing sleeve 5 moving close to socket 3, the sealing sleeve 5 will scrape off the impurities and water adhering to socket 3, keeping the impurities and water away from the electrical connection between plug and socket, thereby reducing the probability of water contact between the electrical connection between plug 2 and socket 3 and ensuring its normal operation.

[0025] Example 2 Based on Example 1, such as Figures 1-3 As shown, the plug 2 is fixed with a buckle 8, which is made of elastic material. The socket 3 is provided with a slot 301. The buckle 8 is provided with a limiting protrusion 801. The limiting protrusion 801 is used to limit the plug 2 and the socket 3 when inserted into the slot 301. When the plug 2 and the socket 3 are connected, the limiting protrusion 801 makes the connection between the two more secure.

[0026] like Figure 2 and Figure 3 As shown, the plug 2 is provided with a first mounting groove 201, and a hollow ring 9 is fixedly connected in the first mounting groove 201. The hollow ring 9 and the socket 3 are pressed against each other, thereby achieving a seal between the plug 2 and the socket 3.

[0027] like Figure 2 and Figure 3 As shown, the plug 2 is provided with a second mounting groove 202, and an airbag 10 is fixedly connected in the second mounting groove 202. The airbag 10 is made of elastic material. The hollow ring 9 and the airbag 10 are connected by a pipe. Both of them are filled with gas. The buckle 8 and the airbag 10 are squeezed against each other. The buckle 8 forces the gas in the airbag 10 into the hollow ring 9, causing the hollow ring 9 to expand and squeeze against the socket 3 to form a seal.

[0028] During the process of plug 2 and socket 3 being inserted together, socket 3 presses against the limiting protrusion 801, causing the buckle 8 to bend until the limiting protrusion 801 aligns with the corresponding slot 301. At this point, the buckle 8, under its own elasticity, causes the limiting protrusion 801 to insert into the slot 301, thereby locking plug 2 and socket 3, making them difficult to separate. During this process, buckle 8 also compresses the airbag 10, forcing the gas inside the airbag 10 into the hollow ring 9, increasing the pressure between the hollow ring 9 and socket 3, and improving the sealing effect of the hollow ring 9. Furthermore, after the plug 2 and socket 3 are connected, the airbag 10 is still in a compressed state. When disassembling the plug 2 and socket 3, simply press the buckle 8 to separate the limiting protrusion 801 from the slot 301, then release the buckle 8 and continue to move the insulating sleeve 1 downwards. When the buckle 8 separates from the socket 3, the airbag 10 expands outwards under its own elasticity, and the hollow ring 9 shrinks inwards under its own elasticity, thereby reducing the friction between the hollow ring 9 and the socket 3 during the movement, and thus reducing the wear and tear on the hollow ring 9 during use.

[0029] Example 3 Based on Example 1, such as Figure 2 , Figure 3 and Figure 5 As shown, the plug 2 is provided with a third mounting groove 203. The distance between the third mounting groove 203 and the insulating sleeve 1 is greater than the distance between the first mounting groove 201 and the insulating sleeve 1. An annular sleeve 11 is fixedly connected in the third mounting groove 203. An equally spaced rubber rings 12 are fixedly connected to the annular sleeve 11. Both the annular sleeve 11 and the rubber rings 12 are made of elastic material. The rubber rings 12 and the socket 3 are pressed against each other, thereby forming multiple seals and improving the waterproof effect of the device. The annular sleeve 11 is filled with water-absorbing and expanding rubber. The water-absorbing and expanding rubber has extremely strong water absorption and expands after absorbing water. Therefore, when water passes over the rubber rings 12, the water-absorbing and expanding rubber expands and squeezes the annular sleeve 11, so that the annular sleeve 11 is tightly pressed against the socket 3 to form a temporary seal, ensuring the normal operation of the device. An equally spaced connecting holes 1101 are provided on the side of the annular sleeve 11 near the sealing sleeve 5. The connecting holes 1101 are used to allow water to pass through. When all the rubber rings 12 fail, water will come into contact with the water-absorbing and expanding rubber through the connecting holes 1101.

[0030] When the plug 2 and socket 3 are connected, multiple layers of seal are formed under the action of multiple rubber rings 12. When these seals fail and water enters between the plug 2 and socket 3 through the rubber rings 12, the water enters into the annular sleeve 11 through the connecting hole 1101 and is absorbed by the water-absorbing and expanding rubber. After absorbing water, the water-absorbing and expanding rubber expands and squeezes the annular sleeve 11, increasing the extrusion pressure between the rubber rings 12 and the socket 3, and squeezing the annular sleeve 11 into contact with the socket 3, thereby forming a temporary seal and restoring the sealing effect.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention 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 the present invention should be included within the protection scope of the present invention.

Claims

1. A quick-connect waterproof connector for medical devices, characterized in that, The device includes an insulating sleeve (1), a plug (2) fixedly connected to the insulating sleeve (1), a socket (3) inserted into the plug (2), the plug (2) having a plug-in part (2001) and an expansion part (2002), the expansion part (2002) being rotatably connected to a support frame (4) evenly distributed in the circumferential direction, the support frame (4) being made of elastic material, the support frame (4) having a first pressing part (401) and a second pressing part (402), a sealing sleeve (5) fixedly connected to the side of the plug (2) away from the insulating sleeve (1), the sealing sleeve (5) being made of elastic material, the sealing sleeve (5) covering all the support frames (4) within it, the sealing sleeve (5) being pressed by the first pressing part (401) and the second pressing part (402) and squeezed with the socket (3) to form a double seal; The diameter of the inner circle of all the first pressing parts (401) is smaller than the diameter of the plug-in part (2001), and the diameter of the inner circle of all the second pressing parts (402) is larger than the diameter of the plug-in part (2001). All the second pressing parts (402) are fixedly connected to a first elastic ring (6), which is fixedly connected to the sealing sleeve (5). The first elastic ring (6) is used to make the sealing sleeve (5) evenly attached to the socket (3). All of the first pressing parts (401) are fixedly connected to the second elastic ring (7), and the sealing sleeve (5) is fixedly connected to the second elastic ring (7).

2. The quick-connect waterproof connector for medical devices according to claim 1, characterized in that, The elastic coefficient of the support frame (4) is greater than that of the second elastic ring (7), and the elastic coefficient of the second elastic ring (7) is greater than that of the first elastic ring (6).

3. A quick-connect waterproof connector for medical devices according to claim 2, characterized in that, The plug (2) is fixed with a buckle (8), which is made of elastic material. The socket (3) is provided with a slot (301). The buckle (8) is provided with a limiting protrusion (801). The limiting protrusion (801) is used to insert into the slot (301) to limit the plug (2) and the socket (3).

4. A quick-connect waterproof connector for medical devices according to claim 3, characterized in that, The plug (2) is provided with a first mounting groove (201), and a hollow ring (9) is fixed in the first mounting groove (201). The hollow ring (9) and the socket (3) are pressed against each other.

5. A quick-connect waterproof connector for medical devices according to claim 4, characterized in that, The plug (2) is provided with a second mounting groove (202), and an airbag (10) is fixedly connected in the second mounting groove (202). The airbag (10) is made of elastic material. The hollow ring (9) and the airbag (10) are connected by a pipe, and both are filled with gas. The buckle (8) and the airbag (10) are squeezed against each other.

6. A quick-connect waterproof connector for medical devices according to claim 5, characterized in that, The plug (2) is provided with a third mounting groove (203). The distance between the third mounting groove (203) and the insulating sleeve (1) is greater than the distance between the first mounting groove (201) and the insulating sleeve (1). An annular sleeve (11) is fixedly connected in the third mounting groove (203). An equally spaced rubber rings (12) are fixedly connected in the annular sleeve (11). Both the annular sleeve (11) and the rubber rings (12) are made of elastic material. The rubber rings (12) are pressed against the socket (3).

7. A quick-connect waterproof connector for medical devices according to claim 6, characterized in that, The annular sleeve (11) is filled with water-absorbing and expanding rubber, and the annular sleeve (11) is provided with equally spaced connecting holes (1101) on the side near the sealing sleeve (5).

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