EP pipe cover body connecting structure
By adopting a detachable connection structure on the EP pipe, the pipe cap and the pipe body are detachably connected using straps and connectors, and the sealing performance is ensured by sealing rings and sealing rings. This solves the problems of inconvenient disassembly and poor sealing performance in the existing technology, and achieves convenient disassembly and good sealing effect.
Patent Information
- Application Number
- CN202520685608.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-12
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-04-12
AI Technical Summary
The existing EP pipe cap and pipe body are connected by a belt, which makes disassembly inconvenient and difficult to repair after the belt breaks, resulting in the permanent separation of the pipe body and the cap.
The tube cap and tube body are detachably connected by a strap and connector. The sealing ring and sealing ring ensure a tight seal. The strap is fixed by the engagement of the connecting ring seat and the connecting protrusion.
It enables convenient disassembly and installation of the pipe cap and the pipe body, has good sealing performance, avoids the problem of permanent separation after the belt breaks, and improves the convenience of use and sealing effect.
Smart Images

Figure CN223788542U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an EP tube, specifically to an EP tube cover connection structure. Background Technology
[0002] EP tubes (Eppendorf tubes) are small centrifuge tubes named after their original manufacturer, the German company Eppendorf. Originally mainly available in 1.5 ml capacity, they have now become the common name for microcentrifuge tubes in laboratories. Due to their material and uses, EP tubes are also known as microcentrifuge tubes or miniature centrifuge tubes.
[0003] Existing EP tubes generally consist of a tube body and a cap. The cap is connected to the tube body via a belt. To facilitate the tube body fitting the cap, the tube body, belt, and matching cap are usually integrated. Although this connection method integrates the cap and belt together, removing the cap from the tube body requires forceful disassembly (i.e., tearing the belt), which is quite troublesome. Furthermore, when the belt breaks, it is generally difficult to repair after the breakage, so the tube body and cap can only be permanently separated. Utility Model Content
[0004] The purpose of this invention is to solve the technical problem of providing a detachable connection structure for an EP pipe cover.
[0005] To solve the above-mentioned technical problems, the technical solution of this utility model for an EP pipe cover connection structure is as follows:
[0006] The device includes a tube body and a tube cap. A strap is connected to the side of the tube cap via a connecting strap. A connecting ring seat corresponding to the strap is connected to the upper side of the tube body. An installation groove is provided on the connecting ring seat. The strap is tied to the connecting ring seat, and the two ends of the strap are connected by connectors. Each end of the strap has a locking hole. Each end of the connector has a locking member corresponding to the two locking holes. The two locking members are respectively locked into the two locking holes. The connector is located in the installation groove.
[0007] The connecting ring seat has a connecting slot on its side; the inner side of the strap is connected to a connecting protrusion corresponding to the connecting slot; the connecting protrusion is engaged in the connecting slot.
[0008] An inner connecting sleeve is connected to the inner side below the pipe cap; a sealing ring is connected to the outer side of the inner connecting sleeve; the inner connecting sleeve is fitted inside the pipe body and sealed by the sealing ring; the sealing ring is located between the pipe body and the inner connecting sleeve.
[0009] An outer connecting sleeve is connected to the outside of the lower part of the tube cap; the outer connecting sleeve is fitted onto the outside of the tube body, and the lower part of the outer connecting sleeve is fitted onto the outside of the binding strap.
[0010] A connecting ring groove is also provided on the outer side of the upper part of the tube body; a sealing ring is connected in the connecting ring groove; the sealing ring is located between the tube body and the outer connecting sleeve.
[0011] The technical effects achieved by this utility model are as follows: The EP pipe cap connection structure of this utility model connects the pipe cap and the pipe body with a detachable connection structure, making it convenient for users to remove the cap, and the cap can still be reinstalled on the pipe body after removal; In terms of cap installation, the cap is tied to the connecting ring seat with a strap, and the two ends of the strap are connected by connectors, making the strap installation convenient. The connecting ring seat has a connecting groove on its side, and the inner side of the strap is connected with a connecting protrusion corresponding to the connecting groove. The connection between the connecting protrusion and the connecting groove can effectively prevent the strap from falling off; In addition, a sealing ring and a sealing ring are provided to effectively ensure the seal between the pipe cap and the pipe body. Attached Figure Description
[0012] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:
[0013] Figure 1 This is a schematic diagram of the connection structure of an EP pipe cover according to this utility model;
[0014] Figure 2 yes Figure 1 Enlarged view of part A;
[0015] Figure 3 This is a cross-sectional view of an EP pipe cover connection structure according to this utility model;
[0016] Figure 4 yes Figure 3 Enlarged view of part B;
[0017] Figure 5 This is an exploded view of an EP pipe cover connection structure according to this utility model;
[0018] Figure 6 yes Figure 5 Enlarged view of part C;
[0019] Figure 7 yes Figure 6 Enlarged view of part D;
[0020] Figure 8 This is a schematic diagram of the pipe cap structure. Detailed Implementation
[0021] The present invention will now be described in further detail with reference to the accompanying drawings.
[0022] See Figures 1 to 8 .
[0023] An EP pipe cap connection structure includes a pipe body 1 and a pipe cap 2. The side of the pipe cap 2 is connected to a strap 4 via a connecting strap 3. The upper side of the pipe body 1 is connected to a connecting ring seat 5 corresponding to the strap 4. The connecting ring seat 5 has an installation groove 6. The strap 4 is tied to the connecting ring seat 5, and the two ends of the strap 4 are connected by connectors 7. Specifically, the side of the connecting ring seat 5 has a connecting slot 11. The inner side of the strap 4 is connected to a connecting protrusion 12 corresponding to the connecting slot 11. The connecting protrusion 12 is locked in the connecting slot 11. Both ends of the strap 4 have locking holes 8. Both ends of the connector 7 are connected to locking members 9 corresponding to the two locking holes 8. The two locking members 9 are locked in the two locking holes 8 respectively. The connector 7 is located in the installation groove 6.
[0024] In this invention, the pipe cap 2 is connected to the pipe body 1 by the connecting strap 3 and the binding strap 4 is connected to the pipe body 1 by the binding strap 4. Specifically, the binding strap 4 is tied to the connecting ring seat 5, and the connecting protrusion 12 inside the binding strap 4 is locked in the connecting groove 11 on the connecting ring seat 5. Then, the two ends of the binding strap 4 are respectively locked to the locking parts 9 at both ends of the connecting parts 7 to fix it. Therefore, the pipe cap 2 of this invention is easy to disassemble and install, and users can disassemble or install the pipe cap 2 according to their own needs.
[0025] An inner connecting sleeve 13 is connected to the inner side of the lower part of the tube cap 2, and a sealing ring 14 is connected to the outer side of the inner connecting sleeve 13. The inner connecting sleeve 13 is fitted inside the tube body 1 and sealed by the sealing ring 14, which is located between the tube body 1 and the inner connecting sleeve 13. An outer connecting sleeve 21 is connected to the lower outer side of the tube cap 2. The outer connecting sleeve 21 is fitted outside the tube body 1, and its lower part is fitted outside the binding strap 4. A connecting ring groove 22 is also provided on the upper outer side of the tube body 1. A sealing ring 23 is connected in the connecting ring groove 22, and the sealing ring 23 is located between the tube body 1 and the outer connecting sleeve 21. The connection between the tube cap 2 and the tube body 1 is sealed by the sealing ring 14 and the sealing ring 23, which improves the sealing effect. When the tube cap 2 is placed on the tube body 1, the binding strap 4 is not easy to loosen because its lower part is fitted outside the binding strap 4.
Claims
1. An EP tube cap body connecting structure comprising a tube body (1) and a tube cap (2), characterized in that: The pipe cover (2) side is connected with the binding belt (4) through the connecting belt (3); the upper side of the pipe body (1) is connected with the connecting ring seat (5) corresponding to the binding belt (4); the connecting ring seat (5) is provided with the mounting groove (6); the binding belt (4) is bound on the connecting ring seat (5), and the both ends of the binding belt (4) are connected through the connecting piece (7); the both ends of the binding belt (4) are provided with the clamping hole (8); the both ends of the connecting piece (7) are connected with the clamping piece (9) corresponding to the two clamping holes (8); the two clamping pieces (9) are clamped in the two clamping holes (8) respectively; the connecting piece (7) is located in the mounting groove (6).
2. The EP tube cover body connection structure according to claim 1, characterized by: The connecting ring seat (5) side is provided with the connecting groove hole (11); the binding belt (4) is connected with the connecting protrusion (12) corresponding to the connecting groove hole (11) on the inner side; the connecting protrusion (12) is clamped in the connecting groove hole (11).
3. The EP tube cap connection structure of claim 1, wherein: The lower inner side of the pipe cover (2) is connected with the inner connecting sleeve (13); the outer side of the inner connecting sleeve (13) is connected with the sealing ring (14); the inner connecting sleeve (13) is sleeved in the pipe body (1), and is sealed through the sealing ring (14); the sealing ring (14) is located between the pipe body (1) and the inner connecting sleeve (13).
4. The EP tube cap connection structure of claim 1, wherein: The lower outer side of the pipe cover (2) is connected with the outer connecting sleeve (21); the outer connecting sleeve (21) is sleeved on the outer side of the pipe body (1), and the lower outer connecting sleeve (21) is sleeved on the outer side of the binding belt (4).
5. The EP tube cap connection structure of claim 4, wherein: The upper outer side of the pipe body (1) is also provided with the connecting ring groove (22); the connecting ring groove (22) is connected with the sealing ring (23); the sealing ring (23) is located between the pipe body (1) and the outer connecting sleeve (21).