Embedded sleeve assembly
By designing the embedded sleeve assembly of the inverted conical spherical connector and the embedded member, the problems of inclination and thread damage of the embedded sleeve in the prior art are solved, and the angle adaptive adjustment and mechanical limit are achieved, which reduces the difficulty of operation and maintenance.
Patent Information
- Application Number
- CN202422228006.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-11
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-09-11
AI Technical Summary
The existing embedded sleeves may tilt during the embedding process. The screw cannot adjust the angle adaptively after the screw is threaded to the sleeve, which is not conducive to the installation and adjustment of subsequent equipment. In addition, thread damage and loosening may occur in later operations, which increases the difficulty of operation and maintenance.
An embedded sleeve assembly is designed. Through the design of the inverted conical spherical connector and the embedded member, adaptive angle adjustment is achieved within a certain range, ensuring that the connector remains perpendicular to the stress surface of the connected product, and mechanical limits are achieved by setting long and short limit convex ribs in the inner cavity of the connecting end to avoid backwards.
It realizes stable and reliable connection between the connector and the embedded parts, overcomes the problems of thread damage and looseness, reduces the difficulty of operation and maintenance, and ensures stable installation and adjustment of the equipment.
Smart Images
Figure CN222962903U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of urban rail transit, in particular to a pre-embedded sleeve assembly. Background Art
[0002] With the development of urban rail transit construction technology, the requirements for the safe construction and later operation and maintenance of subway tunnels are also getting higher and higher. In order to ensure the integrity and durability of the tunnel structure itself, a new type of shield segment pre-embedded anchoring technology for non-destructive and rapid installation has emerged. Among them, the pre-embedded sleeve scheme is a relatively good and cost-effective pre-embedded anchoring technology. Most of the existing pre-embedded sleeves are internal thread sleeves, which are connected and fixed to external channels and other equipment through cooperation with screws. The internal thread type sleeve may tilt during the pre-embedding process, and the screw cannot adaptively adjust the angle after being threadedly connected to the sleeve, which is not conducive to the installation and adjustment of subsequent external channels and other equipment. Moreover, during the later operation process, thread damage may occur and it is impossible to directly detect whether the thread connection is loose, increasing the operation and maintenance difficulty and workload. Content of the Utility Model
[0003] The utility model provides a pre-embedded sleeve assembly to overcome the deficiencies of the prior art.
[0004] The technical solution adopted by the utility model is as follows: A pre-embedded sleeve assembly includes a pre-embedded part and a connecting part. The pre-embedded part includes an upper pre-embedded end and a lower connecting end. The connecting end has an inner cavity. The bottom of the inner cavity is a cavity, the middle part is an inverted conical spherical cavity, and the cavity is smoothly connected to the spherical cavity. The lower end surface of the connecting end is provided with an insertion port having the same outer diameter as the inner diameter of the cavity, and the insertion port penetrates through the spherical cavity and communicates with the cavity. The spherical cavity is equally divided into several concave spherical surfaces through the insertion port. Axial both sides of each concave spherical surface are respectively provided with a long convex rib and a short convex rib, and the long convex rib and the short convex rib are arranged alternately in the circumferential direction, and the long convex rib extends to the bottom of the cavity. One end of the connecting part has a connecting head adapted to the insertion port. The outer peripheral surface of the connecting head is an inverted conical convex spherical surface, and the convex spherical surface is adapted to the spherical cavity. The connecting head extends from the insertion port into the bottom of the cavity and rotates counterclockwise or clockwise until it is limited by the long convex rib and is perpendicular to the force-bearing surface of the connected part, so that the convex spherical surface fits with the concave spherical surface, and the connecting head is suspended below the connecting end of the pre-embedded part.
[0005] The cavity is a cylindrical cavity, the insertion port is a strip-shaped hole, and both ends of the strip-shaped hole are arc surfaces having the same inner diameter as the cylindrical cavity. The connecting head is a strip-shaped structure. The outer peripheral surface of the upper end of the strip-shaped structure is a cylindrical surface adapted to the inner diameter of the cavity, and the outer peripheral surface of the lower end is a convex spherical surface adapted to the concave spherical surface.
[0006] The cavity is a cylindrical cavity, the insertion opening is a spline hole, and the major diameter of the spline hole is the same as the inner diameter of the cylindrical cavity; the connecting head is a spline structure, and the outer peripheral surface of the upper part of the tooth end of the spline structure is a cylindrical surface adapted to the inner diameter of the cylindrical cavity, and the outer peripheral surface of the lower part of the tooth end is a convex spherical surface adapted to the concave spherical surface.
[0007] The spline hole and the spline structure are both three-tooth structures arranged evenly.
[0008] The embedded end has a hemispherical structure with the spherical surface facing downward, and anti-rotation convex ribs are evenly distributed on the surface of the hemispherical structure.
[0009] The lower end of the connecting piece has an external thread.
[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0011] 1. The connecting piece and the embedded part of the present utility model are connected by an inverted conical spherical surface, and the angle can be adaptively adjusted within a certain range to ensure that the force-bearing surface of the connecting piece and the connected product is perpendicular during actual use, and the subsequent external channel and other equipment connections are stable in force and convenient and fast to install and adjust.
[0012] 2. The connecting piece and the embedded part of the present utility model are connected by an inverted conical spherical surface, and the connection is stable and reliable, overcoming the problems of thread damage and loose thread connection that may occur during the later operation of the prior art, and reducing the operation and maintenance difficulty and workload.
[0013] 3. By arranging long and short limiting convex ribs in the inner cavity of the connection end and arranging them alternately, the present utility model can realize the mechanical limit of the connecting piece to ensure that the installation is in place; the reverse limit can prevent the connecting piece from retracting, ensuring the reliability of the connection. Description of the Drawings
[0014] Figure 1 is the exploded structural schematic diagram of Embodiment 1 of the present utility model;
[0015] Figure 2 is the structural schematic diagram of the embedded part of Embodiment 1 of the present utility model;
[0016] Figure 3 is the sectional view of the embedded part of Embodiment 1 of the present utility model;
[0017] Figure 4 is Figure 3 the sectional view A-A of
[0018] Figure 5 is the exploded structural schematic diagram of Embodiment 2 of the present utility model. Detailed Embodiment
[0019] The present utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0020] Example 1, see Figures 1-4 ;
[0021] An embedded sleeve assembly includes an embedded part 1 and a connecting part 2. The embedded part 1 includes an upper embedded end 3 and a lower connecting end 4. The connecting end 4 has an inner cavity. The bottom of the inner cavity is a cavity 4-1, and the middle part is an inverted conical spherical cavity 4-2. The cavity 4-1 and the spherical cavity 4-2 are smoothly connected; the lower end surface of the connecting end 4 is provided with an insertion port 4-3 whose outer diameter is the same as the inner diameter of the cavity 4-1, and the insertion port 4-3 penetrates through the spherical cavity 4-2 and communicates with the cavity 4-1. The spherical cavity 4-2 is equally divided into several concave spherical surfaces through the insertion port 4-3; on both axial sides of each concave spherical surface, there are respectively a long convex rib 4-4 and a short convex rib 4-5, and the long convex rib 4-4 and the short convex rib 4-5 are arranged alternately in the circumferential direction, and the long convex rib 4-5 extends to the bottom of the cavity 4-1; one end of the connecting part 2 has a connecting head 2-1 adapted to the insertion port 4-3. The outer peripheral surface of the connecting head 2-1 is an inverted conical convex spherical surface 2-2, and the convex spherical surface 2-2 is adapted to the spherical cavity 4-2; the connecting head 2-1 extends from the insertion port 4-3 into the bottom of the cavity 4-1 and rotates counterclockwise or clockwise until it is limited by the long convex rib 4-4 and is perpendicular to the force-bearing surface of the connected part, so that the convex spherical surface 2-2 fits with the concave spherical surface, and the connecting head 2-1 is suspended below the connecting end 4 of the embedded part 1.
[0022] The cavity 4-1 is a cylindrical cavity; the insertion port 4-3 is a strip-shaped hole, and both ends of the strip-shaped hole are arc surfaces with the same inner diameter as the cylindrical cavity. The spherical cavity 4-2 is equally divided into two symmetric concave spherical surfaces through the insertion port 4-3; the connecting head 2-1 is a strip-shaped structure, and the upper outer peripheral surface of the strip-shaped structure is a cylindrical surface 2-3 adapted to the inner diameter of the cavity 4-1, and the lower outer peripheral surface is a convex spherical surface 2-2 adapted to the concave spherical surface.
[0023] The embedded end 3 is a hemispherical structure with the spherical surface facing downwards, and anti-rotation convex ribs 3-1 are evenly distributed on the surface of the hemispherical structure. The lower end of the connecting part 2 has an external thread 2-4.
[0024] Example 2, see Figure 5; The basic structure is the same as that of Embodiment 1, except that: the insertion port 4-3 is a spline hole with a three-tooth structure, and the major diameter of the spline hole is the same as the inner diameter of the cylindrical cavity. The spherical cavity 4-2 is equally divided into three uniformly distributed concave spherical surfaces through the insertion port 4-3; the connecting head 2-1 is a three-tooth spline structure, and the outer peripheral surface of the upper part of the tooth end of the three-tooth spline structure is a cylindrical surface 2-3 adapted to the inner diameter of the cylindrical cavity, and the outer peripheral surface of the lower part of the tooth end is a convex spherical surface 2-2 adapted to the concave spherical surface. The spline hole and the spline structure are preferably three-tooth structures with uniform distribution.
[0025] The above embodiments are only the preferred embodiments of the present invention and are not used to limit the scope of implementation of the present invention. Therefore, all equivalent changes made to the content described in the claims of the present invention should be included within the scope of the claims of the present invention.
Claims
1. An embedded sleeve assembly, comprising an embedded part (1) and a connecting part (2), characterized in that: The embedded component (1) comprises an upper embedded end (3) and a lower connecting end (4), wherein the connecting end (4) has an inner cavity, wherein the bottom of the inner cavity is a cavity (4-1), and the middle is an inverted conical spherical cavity (4-2), and the cavity (4-1) and the spherical cavity (4-2) are smoothly connected; the lower end surface of the connecting end (4) is provided with an insertion port (4-3) having an outer diameter equal to the inner diameter of the cavity (4-1), and the insertion port (4-3) penetrates the spherical cavity (4-2) and communicates with the cavity (4-1), and the spherical cavity (4-2) is equally divided into a plurality of concave spherical surfaces through the insertion port (4-3); each of the concave spherical surfaces is provided with a long convex rib (4-4) and a short convex rib (4-5) on both axial sides, and the long convex rib (4-4 ) and short convex ribs (4-5) are alternately arranged along the circumferential direction, and the long convex ribs (4-4) extend to the bottom of the cavity (4-1); one end of the connecting piece (2) has a connecting head (2-1) adapted to the insertion port (4-3), the outer peripheral surface of the connecting head (2-1) is an inverted cone-shaped convex spherical surface (2-2), and the convex spherical surface (2-2) is adapted to the spherical cavity (4-2); the connecting head (2-1) extends from the insertion port (4-3) into the bottom of the cavity (4-1) and rotates counterclockwise or clockwise until the long convex rib (4-4) is limited and then becomes perpendicular to the force-bearing surface of the connected piece, so that the convex spherical surface (2-2) fits the concave spherical surface, and the connecting head (2-1) is suspended below the connecting end (4) of the embedded part (1).
2. The embedded sleeve assembly according to claim 1, characterized in that: The cavity (4-1) is a cylindrical cavity, the insertion port (4-3) is a strip hole, and the two ends of the strip hole are arc surfaces with the same inner diameter as the cylindrical cavity; the connector (2-1) is a strip structure, the upper end outer circumference of the strip structure is a cylindrical surface (2-3) adapted to the inner diameter of the cavity (4-1), and the lower end outer circumference is a convex spherical surface (2-2) adapted to the concave spherical surface.
3. The embedded sleeve assembly according to claim 1, characterized in that: The cavity (4-1) is a cylindrical cavity, the insertion port (4-3) is a spline hole, and the major diameter of the spline hole is the same as the inner diameter of the cylindrical cavity; the connector (2-1) is a spline structure, the upper outer peripheral surface of the tooth end of the spline structure is a cylindrical surface (2-3) adapted to the inner diameter of the cylindrical cavity, and the lower outer peripheral surface of the tooth end is a convex spherical surface (2-2) adapted to the concave spherical surface.
4. The embedded sleeve assembly according to claim 3, characterized in that: The spline hole and the spline structure are evenly distributed three-tooth structures.
5. The embedded sleeve assembly according to claim 1, 2 or 3, characterized in that: The embedded end (3) is in the form of a hemispherical structure with the spherical surface facing downward, and the surface of the hemispherical structure is evenly distributed with anti-rotation convex ribs (3-1).
6. The embedded sleeve assembly according to claim 5, characterized in that: The lower end of the connecting piece (2) has an external thread (2-4).