A Luer connector for preventing reaction force
By designing a Luer joint that is anti-reaction force, and using the rotating connection between the internal threaded cap and the second joint, the joint loosening problem caused by ink tube winding and reaction force in the prior art is solved, and the stable connection of the joint is achieved.
Patent Information
- Application Number
- CN202421554132.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-07-02
AI Technical Summary
The existing Luer joints cause the ink tube to be wound during the threading process, resulting in the problem of loosening the joint.
A Luer joint that is anti-reaction force is designed, and the rotational connection between the internal threaded cap and the second joint is ensured that only the internal threaded cap is rotating, and the first joint and the second joint remain unmoved, thereby avoiding the ink tube winding and reaction force.
It effectively avoids ink tube winding and reaction forces, ensuring high stability after tightening of the joint and is not easy to loosen.
Smart Images
Figure CN222742444U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of stationery, and in particular relates to a Luer connector that prevents reaction force. Background Art
[0002] Luer connectors are mainly used for quick connections between ink tubes, such as Figure 1 and Figure 2 As shown, the Luer connectors currently on the market are all connected together by threaded docking. During the threading process, the ink tubes at both ends of the connector will be entangled together, which will cause a reverse force on the ink tubes and cause the connector to loosen. Utility Model Content
[0003] The utility model aims to solve the above technical problems at least to a certain extent. To this end, the utility model aims to provide a Luer connector that prevents reaction force.
[0004] The technical solution adopted by the utility model is:
[0005] A Luer connector for preventing reaction force comprises a first connector for connecting a first ink tube, an internal thread cap and a second connector for connecting a second ink tube, wherein the first connector is rotatably connected to the internal thread cap, an internal thread is provided on the inner wall of the internal thread cap, an external thread is provided on the second connector, the second connector is threadably mounted in the internal thread cap, and the second connector is communicated with the first connector.
[0006] Preferably, a circle of positioning ring is arranged inside the internal threaded cap, and two circles of limiting rings are arranged on the first joint, and the two circles of limiting rings are respectively located on both sides of the positioning ring.
[0007] Preferably, one end of the first joint is a pagoda head, and the other end is a truncated cone cylinder with a gradually decreasing diameter. Anti-slip protrusions are provided on the outer wall of the internal thread cap and the outer wall of the second joint.
[0008] The beneficial effects of the utility model are:
[0009] When the Luer connector with anti-reaction force provided by the utility model is installed, during the process of screwing the first connector and the second connector together, only the internal thread cap rotates, and the first connector and the second connector do not move. In this way, after the internal thread cap and the second connector are tightened, the ink tubes at both ends of the first connector and the second connector will not be entangled, and reaction force will not be generated, thereby avoiding the situation that the connector cannot be tightened and becomes loose. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a schematic diagram of a Luer connector in the prior art.
[0011] Figure 2 It is a cross-sectional view of a Luer connector in the prior art.
[0012] Figure 3 It is a schematic diagram of the Luer connector for preventing reaction force of the utility model.
[0013] Figure 4 It is an exploded view of the Luer connector for preventing reaction force of the utility model.
[0014] Figure 5 It is a cross-sectional view of the first joint and the internal thread cap of the utility model.
[0015] In the figure: 1-first joint; 11-limiting ring; 12-pagoda head; 13-truncated cone cylinder; 2-internal thread cap; 21-positioning ring; 3-second joint; 4-anti-slip protrusion. DETAILED DESCRIPTION
[0016] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention. The components of the embodiments of the present invention generally described and shown in the accompanying drawings herein can be arranged and designed in a variety of different configurations.
[0017] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two elements.
[0018] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0019] like Figures 3 to 5 As shown, a Luer connector for preventing reaction force of the present embodiment comprises a first connector 1, an internally threaded cap 2 and a second connector 3, one end of the first connector 1 is arranged through the internally threaded cap 2, and the first connector 1 is rotatably connected to the internally threaded cap 2, and the other end of the first connector 1 is used to connect to a first ink tube; an inner wall of the internally threaded cap 2 is provided with an internal thread, and the second connector 3 is provided with an external thread, one end of the second connector 3 is threadedly mounted in the internally threaded cap 2, and after the second connector 3 is tightened, the second connector 3 is sealed and connected to the first connector 1, and the other end of the second connector 3 is used to connect to a second ink tube.
[0020] Specifically, a circle of positioning ring 21 is arranged inside the internal thread cap 2, and two circles of limiting rings 11 are arranged on the first joint 1. The two circles of limiting rings 11 are respectively located on both sides of the positioning ring 21. When the internal thread cap 2 rotates relative to the first joint 1, due to the restriction of the two circles of limiting rings 11, the internal thread cap 2 can only rotate in a circle and will not run out of the first joint 1. The limiting rings 11 are arranged in a large and a small manner, and the smaller limiting ring 11 has an inclined surface to facilitate the first joint 1 and the internal thread cap 2 to be squeezed and connected into one.
[0021] The first joint 1 has a pagoda head 12 at one end connected to the first ink tube and a truncated cone 13 with a gradually decreasing diameter at the other end, which seals the inner hole of the second joint 3. The second joint 3 also has a pagoda head at one end connected to the second ink tube.
[0022] Anti-skid protrusions 4 are provided on the outer walls of the internal thread cap 2 and the second joint 3. The anti-skid protrusions 4 prevent the internal thread cap 2 and the second joint 3 from skidding when held, making them easy to rotate.
[0023] In the Luer connector for preventing reaction force of the present embodiment, when the first connector 1 is screwed together with the second connector 3, only the internal threaded cap 2 rotates, and the first connector 1 and the second connector 3 do not move. Thus, after the internal threaded cap 2 and the second connector 3 are tightened, the ink tubes at both ends of the first connector 1 and the second connector 3 will not be entangled, and no reaction force will be generated, thereby avoiding the situation that the connector cannot be tightened and becomes loose.
[0024] The present utility model is not limited to the above-mentioned optional implementation modes. Anyone can derive other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in the shape or structure, all technical solutions that fall within the scope defined by the claims of the present utility model fall within the protection scope of the present utility model.
Claims
1. A Luer connector for preventing reaction force, characterized in that: The invention comprises a first joint (1) for connecting a first ink tube, an internal thread cap (2) and a second joint (3) for connecting a second ink tube, wherein the first joint (1) is rotatably connected to the internal thread cap (2), the inner wall of the internal thread cap (2) is provided with an internal thread, the second joint (3) is provided with an external thread, the second joint (3) is threadedly mounted in the internal thread cap (2), and the second joint (3) is connected to the first joint (1).
2. The Luer connector according to claim 1, characterized in that: A circle of positioning ring (21) is arranged inside the internal threaded cap (2), and two circles of limiting rings (11) are arranged on the first joint (1), and the two circles of limiting rings (11) are respectively located on both sides of the positioning ring (21).
3. The Luer connector according to claim 1 or 2, characterized in that: One end of the first joint (1) is a pagoda head (12), and the other end is a frustoconical cylinder (13) with a gradually decreasing diameter.
4. The Luer connector according to claim 1 or 2, characterized in that: Anti-slip protrusions (4) are provided on the outer wall of the internal thread cap (2) and the outer wall of the second joint (3).