Protection structure for embedded pipe connector in water conservancy project
By using a threaded tightening method at the pre-embedded pipe interface and employing a combination design of protective sleeve and limiting sleeve, the stability problem at the pre-embedded pipe interface is solved, ensuring both fixing and dustproof effects.
Patent Information
- Application Number
- CN202520761241.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-04-22
AI Technical Summary
The existing protective structure at the pre-embedded pipe interface has poor stability, is prone to slippage, and cannot effectively prevent dust and other foreign objects from entering.
The protective structure is securely fixed at the pre-embedded pipe port by means of threaded tightening, through the combination design of protective sleeve and limiting sleeve, and by using the wedge-shaped surface and the cooperation of internal and external threads, and by using sealing ring and annular groove to prevent foreign objects from entering.
It achieves stable fixation at the pre-embedded pipe interface, prevents slippage, and effectively prevents dust and other foreign objects from entering, maintaining the cleanliness of the port.
Smart Images

Figure CN223839919U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of embedded pipe technology, and in particular relates to a protective structure for the interface of embedded pipes in water conservancy projects. Background Technology
[0002] Before implementing protective measures at the interface of embedded pipes, it is essential to clean away any debris, dust, oil, or other contaminants to ensure a tight seal between the sealing material or protective device and the interface. Therefore, protection at the interface of embedded pipes is necessary. However, existing protective structures for embedded pipe interfaces often use rubber plugs, which are fixed to the port of the embedded pipe by friction. This method has poor stability and is prone to slippage. Therefore, we have designed a protective structure for embedded pipe interfaces in water conservancy projects. This structure is fixed to the port of the embedded pipe by threaded tightening, resulting in better stability and preventing slippage. Utility Model Content
[0003] The purpose of this utility model is to provide a protective structure for the interface of pre-embedded pipes in water conservancy projects. It has the advantages of fixing the protective structure to the position of the pre-embedded pipe port by means of thread tightening, which has good stability and is not easy to slip off, so as to solve the above-mentioned technical problems.
[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A protective structure for the interface of a pre-embedded pipe in a water conservancy project includes a protective sleeve sleeved on the end of the pre-embedded pipe body. A rubber plug that is inserted into the inner cavity of the pre-embedded pipe body is fixedly connected to one side of the inner cavity of the protective sleeve. A wedge-shaped tube is fixedly connected to the end of the protective sleeve. A plurality of notches distributed in an annular array are opened on one side of the wedge-shaped tube. A limiting sleeve is sleeved on the surface of the pre-embedded pipe body. The limiting sleeve is threaded to the surface of the protective sleeve. The inner cavity of the limiting sleeve is provided with a wedge-shaped surface that is adapted to the wedge-shaped tube.
[0005] Preferably, the inner cavity of the limiting sleeve is provided with an internal thread, and the surface of the protective sleeve is provided with an external thread that matches the internal thread.
[0006] Preferably, the inner cavity of the limiting sleeve is provided with an annular groove, and a sealing ring is installed in the inner cavity of the annular groove. The sealing ring is sleeved on the surface of the pre-embedded pipe body.
[0007] Preferably, the inner side of the wedge-shaped tube is provided with multiple protective protrusions.
[0008] Preferably, a hexagonal rotating block is provided at the end of the limiting sleeve away from the protective sleeve.
[0009] The beneficial effects of this utility model are:
[0010] 1. This utility model first places the limiting sleeve on the surface of the pre-embedded pipe body, then picks up the protective sleeve and puts it on the end of the pre-embedded pipe body, so that the rubber plug in the inner cavity of the protective sleeve is inserted. Then, the limiting sleeve is screwed onto the surface of the protective sleeve by the thread, so that the wedge-shaped surface of the inner cavity of the limiting sleeve abuts against the wedge-shaped tube and gathers towards the middle, so that the wedge-shaped tube is firmly attached to the pre-embedded pipe body, ensuring the protection effect at the port of the pre-embedded pipe body. This achieves the purpose of fixing the protective structure at the port of the pre-embedded pipe by the threaded tightening method, with good stability and not easy to slip off.
[0011] 2. This utility model can seal the contact position between the limiting sleeve and the pre-embedded pipe body by using the combination of the annular groove and the sealing ring, effectively preventing dust and other foreign objects from entering and affecting the cleanliness of the port of the pre-embedded pipe body.
[0012] 3. By setting the protective protrusion, this utility model can increase the friction between the wedge-shaped tube and the pre-embedded pipe body, ensuring that the protective sleeve is firmly fitted on the surface of the pre-embedded pipe body.
[0013] 4. The present invention provides a force application point for the user to rotate the limiting sleeve by setting a hexagonal rotating block, which makes it convenient for the user to operate the limiting sleeve. Attached Figure Description
[0014] The advantages of the present invention, as described above and / or in the following detailed description in conjunction with the accompanying drawings, will become clearer and more readily understood. These drawings are merely illustrative and do not limit the scope of the present invention.
[0015] Figure 1 This is a perspective view of one embodiment of the present utility model;
[0016] Figure 2 This is a three-dimensional cross-sectional view of the limiting sleeve and sealing ring according to an embodiment of the present invention;
[0017] Figure 3 This is a three-dimensional schematic diagram of a protective sleeve according to an embodiment of the present invention;
[0018] Figure 4 This is a three-dimensional cross-sectional view of a protective sleeve according to an embodiment of the present invention.
[0019] The attached diagram lists the components represented by each number as follows:
[0020] 1. Embedded pipe body, 2. Protective sleeve, 3. Rubber plug, 4. Wedge-shaped surface tube, 5. Notch, 6. Limiting sleeve, 7. Wedge-shaped surface, 8. Internal thread, 9. External thread, 10. Annular groove, 11. Sealing ring, 12. Protective protrusion, 13. Hexagonal rotating block. Detailed Implementation
[0021] In the following description, embodiments of the protective structure for pre-embedded pipe interfaces in water conservancy projects according to the present invention will be described with reference to the accompanying drawings.
[0022] Figure 1-4 This invention illustrates a protective structure for the interface of a pre-embedded pipe in a water conservancy project, comprising a protective sleeve 2 fitted onto the end of the pre-embedded pipe body 1. A rubber plug 3, inserted into the inner cavity of the pre-embedded pipe body 1, is fixedly connected to one side of the inner cavity of the protective sleeve 2. A wedge-shaped tube 4 is fixedly connected to the end of the protective sleeve 2. Multiple protective protrusions 12 are provided on the inner side of the wedge-shaped tube 4. The protective protrusions 12 increase the friction between the wedge-shaped tube 4 and the pre-embedded pipe body 1, ensuring that the protective sleeve 2 is firmly fitted onto the surface of the pre-embedded pipe body 1. Multiple annularly arranged notches 5 are provided on one side of the wedge-shaped tube 4. A limiting sleeve 6 is fitted onto the surface of the pre-embedded pipe body 1. An annular groove 10 is provided inside the limiting sleeve 6, and an annular groove 10 is installed inside the annular groove 10. A sealing ring 11 is fitted onto the surface of the pre-embedded pipe body 1. Through the cooperation of the annular groove 10 and the sealing ring 11, the contact position between the limiting sleeve 6 and the pre-embedded pipe body 1 can be sealed, effectively preventing dust and other foreign objects from entering and affecting the cleanliness of the port of the pre-embedded pipe body 1. The limiting sleeve 6 is threadedly connected to the surface of the protective sleeve 2. The inner cavity of the limiting sleeve 6 is provided with an internal thread 8, and the surface of the protective sleeve 2 is provided with an external thread 9 that matches the internal thread 8. The inner cavity of the limiting sleeve 6 is provided with a wedge-shaped surface 7 that matches the wedge-shaped surface tube 4. A hexagonal rotating block 13 is provided at the end of the limiting sleeve 6 away from the protective sleeve 2. The hexagonal rotating block 13 provides a force point for the user to rotate the limiting sleeve 6, making it convenient for the user to operate the limiting sleeve 6.
[0023] Working principle: When using this utility model, first, the limiting sleeve 6 is placed on the surface of the pre-embedded pipe body 1. Then, the protective sleeve 2 is picked up and placed on the end of the pre-embedded pipe body 1, so that the rubber plug 3 in the inner cavity of the protective sleeve 2 is inserted into the inner cavity of the pre-embedded pipe body 1. The friction between the rubber plug 3 and the pre-embedded pipe body 1 achieves pre-fixation of the protective sleeve 2. Then, the limiting sleeve 6 is screwed onto the surface of the protective sleeve 2 due to the cooperation of the external thread 9 and the internal thread 8, so that the wedge-shaped surface 7 in the inner cavity of the limiting sleeve 6 abuts against the wedge-shaped surface tube 4 and gathers towards the middle, so that the protective protrusion 12 in the inner cavity of the wedge-shaped surface tube 4 is firmly attached to the pre-embedded pipe body 1, increasing the friction between the protective sleeve 2 and the pre-embedded pipe body 1, and ensuring the protection effect at the port of the pre-embedded pipe body 1.
[0024] In summary, the protective structure at the pre-embedded pipe interface in this water conservancy project is achieved by first placing the limiting sleeve 6 on the surface of the pre-embedded pipe body 1, then lifting the protective sleeve 2 and placing it on the end of the pre-embedded pipe body 1, so that the rubber plug 3 inside the protective sleeve 2 is inserted, and then screwing the limiting sleeve 6 onto the surface of the protective sleeve 2, so that the wedge-shaped surface 7 inside the limiting sleeve 6 abuts against the wedge-shaped surface tube 4 and converges towards the middle, so that the wedge-shaped surface tube 4 is firmly attached to the pre-embedded pipe body 1, ensuring the protective effect at the port of the pre-embedded pipe body 1. This achieves the purpose of fixing the protective structure at the port of the pre-embedded pipe by tightening the thread, with good stability and not easy to slip off.
Claims
1. A protective structure for the interface of a pre-embedded pipe in a water conservancy project, characterized in that, The protective sleeve (2) is fitted onto the end of the pre-embedded pipe body (1). A rubber plug (3) is fixedly connected to one side of the inner cavity of the protective sleeve (2) and inserted into the inner cavity of the pre-embedded pipe body (1). A wedge-shaped tube (4) is fixedly connected to the end of the protective sleeve (2). A plurality of annular array notches (5) are opened on one side of the wedge-shaped tube (4). A limiting sleeve (6) is fitted onto the surface of the pre-embedded pipe body (1). The limiting sleeve (6) is threaded onto the surface of the protective sleeve (2). The inner cavity of the limiting sleeve (6) is provided with a wedge-shaped surface (7) that matches the wedge-shaped tube (4).
2. The protective structure for the pre-embedded pipe interface in a water conservancy project according to claim 1, characterized in that, The inner cavity of the limiting sleeve (6) is provided with an internal thread (8), and the surface of the protective sleeve (2) is provided with an external thread (9) that is compatible with the internal thread (8).
3. The protective structure for the pre-embedded pipe interface in a water conservancy project according to claim 2, characterized in that, The inner cavity of the limiting sleeve (6) is provided with an annular groove (10), and a sealing ring (11) is installed in the inner cavity of the annular groove (10). The sealing ring (11) is sleeved on the surface of the pre-embedded pipe body (1).
4. The protective structure for the pre-embedded pipe interface in a water conservancy project according to claim 3, characterized in that, The inner side of the wedge-shaped tube (4) is provided with multiple protective protrusions (12).
5. A protective structure for pre-embedded pipe interfaces in water conservancy projects according to claim 4, characterized in that, The limiting sleeve (6) is provided with a hexagonal rotating block (13) at the end away from the protective sleeve (2).