Ruhr lock cap capable of preventing glue leakage

Abstract

The utility model discloses a Luer lock cap capable of preventing glue leakage, which comprises a lock cap body, the lock cap body is cylindrical, the outer wall of the lock cap body is provided with a convex structure for increasing friction force during rotation, the upper wall of the lock cap body is provided with a connecting hole, the inner side wall of the connecting hole is provided with a connecting structure for connection, and the connecting structure is provided with a sealing structure for sealing. A glue stopping structure for avoiding glue leakage is arranged at the position, close to the lower wall of the lock cap body, of the inner side wall of the connecting hole, glue is dripped into the lock cap body and the injector through a glue dispenser to fix the lock cap body and the injector, and the dripped glue is blocked through the arranged annular table and is prevented from flowing to the needle head part of the injector; therefore, the problem that a syringe needle is polluted by glue used when the lock cap and the syringe are fixed is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of Luer connectors, in particular to a Luer lock cap for preventing glue leakage. Background Art

[0002] The Luer connector is a standardized, micro-vibration, leak-free connector that connects via a male connector and a matching locking cap. Widely used in medical and laboratory instruments, the Luer connector is a convenient connection device used in the medical industry that greatly simplifies the management of liquid and gaseous medical fluids.

[0003] The contamination of the Luer connector is a very important issue in clinical practice. In addition to the contamination caused by hand contact when connecting or disconnecting the Luer connector, glue contamination is also a problem. When the locking cap is connected to the syringe head, the glue will flow out from the gap between the locking cap and the syringe head during the glue fixation process using a glue dispenser, thereby contaminating the syringe needle part. Therefore, it is necessary to optimize and improve the locking cap structure. Summary of the Invention

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to provide a Luer lock cap that prevents glue leakage.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: it includes a lock cap body, which is cylindrical, and the outer wall of the lock cap body is provided with a protruding structure for increasing friction during rotation, the upper wall of the lock cap body is provided with a connecting hole, the inner side wall of the connecting hole is provided with a connecting structure for connection, and the inner side wall of the connecting hole is provided with a glue-stopping structure located near the lower wall of the lock cap body to prevent glue leakage.

[0006] As a further description of the above technical solution: the glue-stopping structure includes a ring platform, which is arranged on the inner wall of the connecting hole and is located close to the lower wall of the lock cap body, and the inner ribs are all arranged on the inner wall of the ring platform.

[0007] As a further description of the above technical solution: there are three groups of inner ribs, which are equally distributed on the circumference with the axis of the ring platform as the center, and the lower ends of the three groups of inner ribs are flush with the lower wall of the lock cap body.

[0008] As a further description of the above technical solution: an annular groove is provided on the inner side wall of the ring platform and above the inner rib, a stop glue ring is provided on the inner side wall of the ring platform through the annular groove, an anti-slip structure is provided between the stop glue ring and the annular groove, the stop glue ring is provided on the inner side wall of the annular groove, and the material of the stop glue ring is medical rubber.

[0009] As a further description of the above technical solution: the anti-slip structure includes a step groove and an extended edge. The step groove is arranged on the inner wall of the ring groove and is located on the side away from the connecting hole. The extended edge is arranged on the lower wall of the stop glue ring and is located close to the circumferential outer wall of the stop glue ring.

[0010] As a further description of the above technical solution: the protruding structure includes multiple groups of outer ribs, and the multiple groups of outer ribs are arranged in sequence on the outer wall of the circumference of the lock cap body in equal parts of a circle with the axis of the lock cap body as the center.

[0011] As a further description of the above technical solution: the connecting structure is a connecting thread, and the connecting thread is arranged on the inner side wall of the connecting hole.

[0012] The utility model has the following beneficial effects:

[0013] 1. Compared with the existing technology, the Luer lock cap that prevents glue leakage has the syringe head inserted between the three groups of inner ribs on the inner side wall of the ring platform in the lock cap body. The syringe head contacts the outer wall of the syringe head through the three groups of inner ribs. Glue is dripped in by a glue dispenser to fix the lock cap body and the syringe. The dripped glue is blocked by the set ring platform to avoid flowing to the needle part of the syringe, thereby solving the problem of the glue used to fix the lock cap and the syringe contaminating the syringe needle.

[0014] 2. Compared with the existing technology, the Luer lock cap that prevents glue leakage is provided with a step groove on the inner side wall of the ring groove, and an extended edge that matches the step groove on the lower wall of the glue stop ring. When the syringe head is inserted into the inner cavity of the ring platform, extrusion is formed between the syringe head and the inner side wall of the glue stop ring. The cooperation between the extended edge and the step groove can prevent the glue stop ring from being pulled out of the ring groove when the syringe head is inserted, thereby improving the connection stability of the glue stop ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a Luer lock cap for preventing glue leakage proposed by the present invention;

[0016] Figure 2 This is a schematic diagram of the structure of the lock cap body of a Luer lock cap for preventing glue leakage proposed in the present invention;

[0017] Figure 3 This is a schematic diagram of the bottom structure of a Luer lock cap body for preventing glue leakage proposed in the present invention;

[0018] Figure 4 This is a partial cross-sectional view of the internal structure of the lock cap body of a Luer lock cap for preventing glue leakage proposed in the present invention;

[0019] Figure 5 This is a schematic cross-sectional view of the local structure of the ring platform and ring groove of a Luer lock cap for preventing glue leakage proposed in the present invention;

[0020] Figure 6 The utility model is a partial cross-sectional schematic diagram of a glue-stop ring of a Luer lock cap for preventing glue leakage.

[0021] Legend:

[0022] 1. Lock cap body; 2. Outer rib; 3. Connecting hole; 4. Connecting thread; 5. Ring platform; 6. Inner rib; 7. Stop ring; 8. Ring groove; 9. Step groove; 10. Extended edge. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0024] like Figure 1 and Figure 2 As shown, the utility model provides a Luer lock cap for preventing glue leakage: comprising a lock cap body 1, which is cylindrical;

[0025] In order to prevent slipping during locking, the outer wall of the lock cap body 1 is provided with a raised structure for increasing friction during rotation. The raised structure includes multiple sets of outer ribs 2. The multiple sets of outer ribs 2 are arranged in a circular shape with the axis of the lock cap body 1 as the center. The multiple sets of outer ribs 2 can increase the friction between the hand and the lock cap body 1 when the lock cap body 1 and the male connector are rotated and tightened, thereby preventing slipping and improving the locking force.

[0026] In order to facilitate connection with the male connector, a connecting hole 3 is provided on the upper wall of the lock cap body 1. A connecting structure for connection is provided on the inner side wall of the connecting hole 3. The connecting structure is a connecting thread 4. The connecting thread 4 is provided on the inner side wall of the connecting hole 3. An external thread that matches the connecting thread 4 is provided on the outer wall of the male connector. The lock cap body 1 is threadedly connected to the male connector through the connecting thread 4 and the external thread on the outer wall of the male connector.

[0027] In order to prevent glue from flowing into the connecting hole 3 and contaminating the syringe needle during glue dispensing, a glue-stopping structure is provided on the inner wall of the connecting hole 3 and close to the lower wall of the locking cap body 1 to prevent glue leakage. The glue-stopping structure includes a ring platform 5. When the glue dispensing operation is performed, the glue is blocked by the ring platform 5 to prevent the glue from flowing into the Luer lock cap. Example

[0028] like Figure 1The utility model provides a Luer lock cap for preventing glue leakage: comprising a lock cap body 1, which is cylindrical;

[0029] In order to prevent slipping during locking, the outer wall of the lock cap body 1 is provided with a raised structure for increasing friction during rotation. The raised structure includes multiple sets of outer ribs 2. The multiple sets of outer ribs 2 are arranged in a circular shape with the axis of the lock cap body 1 as the center. The multiple sets of outer ribs 2 can increase the friction between the hand and the lock cap body 1 when the lock cap body 1 and the male connector are rotated and tightened, thereby preventing slipping and improving the locking force.

[0030] like Figure 3 、 Figure 4 、 Figure 5 as well as Figure 6 As shown, in order to prevent glue from flowing into the connecting hole 3 during glue dripping and causing contamination to the syringe needle, a glue-stopping structure is provided on the inner wall of the connecting hole 3 and located near the lower wall of the locking cap body 1 to prevent glue leakage. The glue-stopping structure includes a ring platform 5, three groups of inner ribs 6 and a group of glue-stopping rings 7. The ring platform 5 is provided on the inner wall of the connecting hole 3 and located near the lower wall of the locking cap body 1. The three groups of inner ribs 6 are all provided on the inner wall of the ring platform 5. The three groups of inner ribs 6 are equally distributed in a circle with the axis of the ring platform 5 as the center. The lower ends of the three groups of inner ribs 6 are flush with the lower wall of the locking cap body 1. The annular groove 8 is provided on the inner wall of the ring platform 5 and above the three groups of inner ribs 6 , the glue stop ring 7 is arranged on the inner wall of the ring groove 8. The material of the glue stop ring 7 is medical rubber. The glue stop ring 7 is arranged on the inner wall of the ring platform 5 through the ring groove 8. An anti-slip structure is provided between the glue stop ring 7 and the ring groove 8. When connecting, after the syringe head is inserted into the inner cavity of the ring platform 5, it is supported by three groups of inner ribs 6. After glue is dripped into the glue dispensing machine, the lock cap body 1 and the syringe head are fixed together by glue. After the syringe head is inserted into the inner cavity of the lock cap body 1, the outer wall of the syringe head is slidably connected with the inner wall of the glue stop ring 7. The elasticity of the rubber ring makes the glue stop ring 7 fully wrap the syringe head to prevent glue from flowing toward the inside of the connecting hole 3;

[0031] In order to prevent the stop glue ring 7 from being squeezed and falling off when the syringe head is inserted, the anti-fall-off structure includes a step groove 9 and an extension edge 10. The step groove 9 is arranged on the inner wall of the ring groove 8 and is located on the side away from the connecting hole 3. The extension edge 10 is arranged on the lower wall of the stop glue ring 7 and is located close to the circumferential outer wall of the stop glue ring 7. The step groove 9 and the extension edge 10 are arranged so that the stop glue ring 7 will not be brought out of the ring groove 8 when the syringe head is inserted.

[0032] Working principle: Through multiple groups of external ribs 2, the friction between the hand and the lock cap body 1 can be increased when the lock cap body 1 and the male connector are rotated and tightened, thereby avoiding slipping and improving the locking force. The outer wall of the male connector is provided with an external thread that matches the connecting thread 4. The lock cap body 1 is connected to the male connector thread through the connecting thread 4 and the external thread of the outer wall of the male connector. After the syringe head is inserted into the inner cavity of the ring platform 5, it is supported by three groups of internal ribs 6. Glue is dripped into the lock cap body 1 and fixed together with the syringe head through a glue dispenser. After the syringe head is inserted into the inner cavity of the lock cap body 1, the outer wall of the syringe head is slidably connected to the inner wall of the stop glue ring 7. The elasticity of the rubber ring makes the stop glue ring 7 fully wrap the syringe head to prevent glue from flowing toward the inside of the connecting hole 3. The step groove 9 and the extended edge 10 are provided to prevent the stop glue ring 7 from being brought out of the ring groove 8 when the syringe head is inserted.

[0033] Finally, it should be noted that the above 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 aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A Luer lock cap for preventing glue leakage, characterized by: The invention comprises a lock cap body (1), wherein the lock cap body (1) is cylindrical, the outer wall of the lock cap body (1) is provided with a protruding structure for increasing friction during rotation, the upper wall of the lock cap body (1) is provided with a connecting hole (3), the inner wall of the connecting hole (3) is provided with a connecting structure for connection, and the inner wall of the connecting hole (3) is provided with a glue-stopping structure for preventing glue leakage and located near the lower wall of the lock cap body (1).

2. The Luer lock cap for preventing glue leakage according to claim 1, characterized in that: The glue-stopping structure comprises a ring platform (5), which is arranged on the inner wall of the connecting hole (3) and is located close to the lower wall of the lock cap body (1), and the inner ribs (6) are all arranged on the inner wall of the ring platform (5).

3. The Luer lock cap for preventing glue leakage according to claim 2, characterized in that: There are three groups of inner ribs (6), all of which are equally distributed around the circumference with the axis of the ring platform (5) as the center. The lower ends of the three groups of inner ribs (6) are flush with the lower wall of the lock cap body (1).

4. The Luer lock cap for preventing glue leakage according to claim 2, characterized in that: An annular groove (8) is provided on the inner side wall of the ring platform (5) and above the inner rib (6); a stop rubber ring (7) is provided on the inner side wall of the ring platform (5) through the annular groove (8); an anti-slip structure is provided between the stop rubber ring (7) and the annular groove (8); the stop rubber ring (7) is provided on the inner side wall of the annular groove (8); and the material of the stop rubber ring (7) is medical rubber.

5. The Luer lock cap for preventing glue leakage according to claim 4, characterized in that: The anti-slip structure comprises a step groove (9) and an extended edge (10), wherein the step groove (9) is arranged on the inner side wall of the ring groove (8) and is located on a side away from the connecting hole (3), and the extended edge (10) is arranged on the lower wall of the stop ring (7) and is located close to the circumferential outer wall of the stop ring (7).

6. The Luer lock cap for preventing glue leakage according to claim 1, characterized in that: The raised structure comprises a plurality of groups of outer ribs (2), and the plurality of groups of outer ribs (2) are arranged in sequence on the outer circumferential wall of the lock cap body (1) in a circular shape with the axis of the lock cap body (1) as the center.

7. The Luer lock cap for preventing glue leakage according to claim 1, characterized in that: The connection structure is a connection thread (4), and the connection thread (4) is arranged on the inner side wall of the connection hole (3).

Images