Joint connection structure of filter

Abstract

The utility model belongs to dialysis equipment technical field, concretely relates to a joint connecting structure of filter, including end cover, joint, steel ball and compression assembly, end cover includes cover body and the connecting mouth of cover body upside, cover body includes the integrated cover top and the tubular cover wall, connecting mouth sets up in the middle part of cover top and sets up to the side away from cover wall, connecting mouth hollow sets up, be provided with a ring quick -joint card slot on the outer wall of connecting mouth, the end of connecting mouth is tightly covered and is set in the outside of connecting mouth in joint, set up the installation port of steel ball in joint, the aperture of installation port near connecting mouth one end is less than the diameter of steel ball, steel ball is installed in the installation port, and compression assembly is slidably arranged on the outside of joint and is compressed in quick -joint card slot with steel ball. The joint and connecting mouth in the utility model are convenient to connect and detach, and the filter is convenient to replace and maintain and check.

Description

Technical Field

[0001] This utility model belongs to the technical field of dialysis equipment, specifically relating to a filter connector connection structure. Background Technology

[0002] A dialysate filter is a device used in dialysis treatment. It is mainly used to filter impurities and toxins from the dialysate, ensuring the purity of the dialysate and thus guaranteeing the effectiveness and safety of dialysis treatment.

[0003] When using a filter, it needs to be installed on the dialysis equipment. In the existing technology, the end cap of the filter is directly connected to the dialysis equipment. As such, when the filter is replaced, it needs to be removed. Therefore, in order to facilitate disassembly, a connector connection structure is needed to facilitate quick disassembly of the filter. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a filter connector connection structure that enables quick disassembly of the filter.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a filter connector connection structure, including an upper end cap, a connector, a steel ball, and a pressing assembly. The end cap includes a cover body and a connecting nozzle on the upper side of the cover body. The cover body includes an integrally formed top and a tubular cover wall. The connecting nozzle is located in the middle of the top and protrudes to the side away from the cover wall. The connecting nozzle is hollow. A quick-connect groove is provided on the outer wall of the connecting nozzle. The connector is tightly fitted onto the outside of the connecting nozzle from the end of the connecting nozzle. An installation port for the steel ball is provided on the connector. The diameter of the hole near the connecting nozzle is smaller than the diameter of the steel ball. The steel ball is installed in the installation port. The pressing assembly is slidably located on the outside of the connector and presses the steel ball into the quick-connect groove.

[0006] Preferably, a sealing groove is also provided on the outer wall of the upper port of the connector.

[0007] Preferably, the two side walls of the quick-connect slot are inclined, and the width of the open end of the quick-connect slot is greater than the width of the other end of the quick-connect slot.

[0008] Preferably, the clamping assembly includes a pull ring and a spring. The pull ring is sleeved on the outside of the connector. A groove for accommodating the spring is formed on the outer wall of the connector. The spring is disposed between the connector and the pull ring. A limiting protrusion is provided on the inner wall of the pull ring. The limiting protrusion is engaged with one end of the spring and presses against the steel ball.

[0009] More preferably, a retaining ring is provided on the side of the limiting protrusion away from the spring, and a groove for receiving the retaining ring is provided on the outer wall of the connector, and the retaining ring is engaged between the connector and the pull ring.

[0010] Preferably, a sealing plug is provided at the end of the connecting nozzle, and the connector presses the sealing plug tightly against the end of the connecting nozzle.

[0011] Compared with existing technologies, the above technical solution has the following beneficial effects: The outer side of the connecting nozzle of this utility model is provided with a quick-connect groove. When installing the connector, the connector is placed on the outside of the connecting nozzle. After the connector is installed in place, the steel ball falls into the quick-connect groove on the outside of the connecting nozzle. The clamping component presses the steel ball into the quick-connect groove and locks it in place, so that the connector is fixedly installed on the outside of the connecting nozzle. When disassembling the connector, the clamping component is slid and the connector is pulled at the same time, so that the clamping component, the steel ball and the connector are disassembled together. The connector and connecting nozzle in this utility model are easy to connect and disassemble, which facilitates the replacement and maintenance of the filter. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the end cap structure.

[0013] Figure 2 This is a schematic diagram of the connection structure.

[0014] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0015] The components include: 1. Cover body; 2. Connecting nozzle; 3. Quick-connect slot; 4. Sealing slot; 5. End cap; 6. Sealing plug; 7. Pull ring; 8. Spring; 9. Steel ball; 10. Snap ring; 11. Connector; 12. Mounting port; 13. Limiting protrusion. Detailed Implementation

[0016] Figures 1-3 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figures 1-3 The present invention will be further described below.

[0017] like Figure 1 As shown, the connector connection structure of a filter according to the present invention includes an end cap 5, a connector 11, a steel ball 9, and a clamping assembly. The end cap 5 includes a cover body 1 and a connecting nozzle 2 on the upper side of the cover body 1. The cover body 1 includes an integrally formed top and a tubular cover wall. The end cap is installed at the end of the filter. The connecting nozzle 2 is located in the middle of the top and protrudes to the side away from the cover wall. The connecting nozzle 2 is hollow and communicates with the cavity inside the cover body 1. A quick-connect groove 3 is provided on the outer wall of the connecting nozzle 2, and the two side walls of the quick-connect groove 3 are inclined. The width of the open end of the quick-connect groove 3 is greater than the width of the other end of the quick-connect groove 3.

[0018] like Figures 2-3As shown, the connector 11 is tightly fitted onto the outside of the connecting nozzle 2 at one end. The other end of the connector 11 is connected to the dialysis equipment. An installation port 12 with a steel ball 9 is provided on the connector 11. The diameter of the hole at the end of the installation port 12 near the connecting nozzle 2 is smaller than the diameter of the steel ball 9, so that the steel ball 9 is installed in the installation port 12 and will not fall off from the side of the installation port 12 near the connecting nozzle 2. The clamping component is slidably disposed on the outside of the connector 11. The clamping component clamps the steel ball 9 and the connector 11. After the connector 11 is installed in place, the steel ball 9 falls exactly into the quick-connect slot 3. At the same time, the clamping component clamps the steel ball 9 into the quick-connect slot 3 and locks it in place. In this way, the connector 11 is fixedly locked on the outside of the end cap 5. When the connector needs to be disassembled, the sliding clamping component pulls the connector 11 at the same time, so that the clamping component, the steel ball and the connector are pulled off the connecting nozzle 2 at the same time. The width of the open end of the quick-connect slot 3 is larger than the width of the other end of the quick-connect slot 3, so that the steel ball 9 can be easily removed from the quick-connect slot 3.

[0019] The clamping assembly includes a pull ring 7 and a spring 8. The pull ring 7 is sleeved on the outside of the connector 11. A groove is provided on the outer wall of the connector 11 to accommodate the spring 8. After the spring 8 is sleeved on the outer wall of the connector 11, a boss is formed on the upper side of the groove to restrict the upper position of the spring 8. The spring 8 is located between the connector 11 and the pull ring 7. After the connector 11 is disassembled, the elastic force of the spring 8 pushes the pull ring 7 downward, so that the pull ring 7 presses down on the steel ball 9 again. A limiting protrusion 13 is provided on the inner wall of the pull ring 7. The limiting protrusion 13 is locked at the lower end of the spring 8 and is pressed against the steel ball 9. A retaining ring 10 is provided on the side of the limiting protrusion 13 away from the spring 8. A groove is provided on the outer wall of the connector 11 to accommodate the retaining ring 10. The retaining ring 10 is locked between the connector 11 and the pull ring 7. The retaining ring 10 prevents the steel ball 9 from falling off. The end of the limiting protrusion 13 near the retaining ring 10 is chamfered to facilitate pressing against the pull ring 7.

[0020] In this embodiment, a sealing groove 4 is also provided on the outer wall of the upper port of the connector 2, and a diameter change is also made on the inner wall of the connector 11. A sealing plug 6 is provided inside the connector 11, and the connector 2 presses the sealing plug 6 into the inside of the connector 11.

[0021] In use, the connector 11 is installed from the end of the connecting nozzle 2. During installation, the pull ring 7 is pulled upwards. After installation, the steel ball 9 falls into the quick-connect slot 3. At the same time, the limiting protrusion 13 of the pull ring 7 presses the steel ball 9 into the quick-connect slot 3 and locks it in place. In this way, the connector 11 is fixedly locked on the outside of the end cover 5. When the connector needs to be disassembled, the pull ring 7 is slid and the connector 11 is pulled at the same time, so that the pull ring 7, the steel ball 9 and the connector are pulled off the connecting nozzle 2 at the same time. The connector and connecting nozzle in this utility model are easy to connect and disassemble, which facilitates the replacement and maintenance of the filter.

[0022] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A connector connection structure for a filter, characterized in that: The device includes an end cap (5), a connector (11), a steel ball (9), and a clamping assembly. The end cap (5) includes a cover body (1) and a connecting nozzle (2) on the upper side of the cover body (1). The cover body (1) includes an integrally formed top and a tubular cover wall. The connecting nozzle (2) is located in the middle of the top and protrudes to the side away from the cover wall. The connecting nozzle (2) is hollow. A quick-connect groove (3) is provided on the outer wall of the connecting nozzle (2). The connector (11) is tightly fitted onto the outside of the connecting nozzle (2) from the end of the connecting nozzle (2). An installation port (12) with a steel ball (9) is provided on the connector (11). The diameter of the hole of the installation port (12) near the end of the connecting nozzle (2) is smaller than the diameter of the steel ball (9). The steel ball (9) is installed in the installation port (12). The clamping assembly is slidably located on the outside of the connector (11) and clamps the steel ball (9) in the quick-connect groove (3).

2. The connector connection structure of a filter according to claim 1, characterized in that: A sealing groove (4) is also provided on the outer wall of the upper port of the connector (2).

3. The connector connection structure of a filter according to claim 1, characterized in that: The two side walls of the quick-connect slot (3) are inclined, and the width of the open end of the quick-connect slot (3) is greater than the width of the other end of the quick-connect slot (3).

4. The connector connection structure of a filter according to claim 1, characterized in that: The clamping assembly includes a pull ring (7) and a spring (8). The pull ring (7) is sleeved on the outside of the connector (11). A groove for accommodating the spring (8) is provided on the outer wall of the pull ring (7). The spring (8) is located between the connector (11) and the pull ring (7). A limiting protrusion (13) is provided on the inner wall of the connector (11). The limiting protrusion (13) is locked at one end of the spring (8) and pressed against the steel ball (9).

5. The connector connection structure of a filter according to claim 4, characterized in that: A retaining ring (10) is provided on the side of the limiting protrusion (13) away from the spring (8), and a groove for accommodating the retaining ring (10) is provided on the outer wall of the connector (11). The retaining ring (10) is engaged between the connector (11) and the pull ring (7).

6. The connector connection structure of a filter according to claim 1, characterized in that: A sealing plug (6) is provided at the end of the connecting nozzle (2), and the connector (11) presses the sealing plug (6) against the end of the connecting nozzle (2).

Images