Mechanical connecting assembly
By using a tapered connection structure and a multi-layer anti-detachment design, the problem of insufficient anti-detachment capability of existing mechanical connectors is solved, achieving a more stable and robust pipe pile connection.
Patent Information
- Application Number
- CN202520496459.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-03-20
AI Technical Summary
Existing mechanical connectors have limited anti-detachment capabilities, especially after the saw teeth wear down, which affects the stability of the pipe pile connection.
It adopts a tapered connection structure and a multi-layer anti-detachment design, including a tapered lower connector, tapered holes, and the interlocking of upper and lower unidirectional saw teeth. Combined with the clamping force of elastic elements and spring sheets, it forms a multi-layer anti-detachment structure.
It improves the stability and anti-detachment ability of the connection, ensuring that the connecting rod is not easy to come off, and enhances the connection strength and reliability.
Smart Images
Figure CN223880329U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a pipe pile connecting structure technical field, concretely relates to a mechanical connection assembly. BACKGROUND
[0002] In the construction industry, in order to connect two prefabricated pipe piles, the traditional connecting method has welding, flange connection and connecting by connecting piece, wherein connecting pipe piles by mechanical connecting piece is a commonly used connecting mode. But the existing mechanical connecting piece joint usually adopts cylindrical structure, and it realizes anti-dropping by setting one-way sawtooth on the cylindrical surface of the joint and cooperating with elastic clamp, but only relying on one-way sawtooth, the anti-dropping capacity is limited, and once the one-way sawtooth is worn, the connection firmness of pipe pile will be affected.
[0003] In view of this, the present inventors have conducted in-depth research on the above problems, and thus the present case is produced. CONTENT OF THE UTILITY MODEL
[0004] The utility model discloses a kind of mechanical connection assemblies to solve the technical problems, the structure is simple, and the connecting strength is high, can quickly firm connection of two pipe piles.
[0005] The utility model discloses the technical problem solution scheme is as follows: a kind of mechanical connection assembly, including connecting rod, expansion piece, elastic member and sealing cover, the lower joint of one end of the connecting rod is inserted in expansion piece, the tapered hole of the upper side diameter less than the lower side diameter is equipped in expansion piece, the lower joint corresponds and is presented the tapered structure of the upper side diameter less than the lower side diameter, the elastic member is installed in sealing cover and the elastic member ring is equipped in the outer periphery of expansion piece, the elastic member is uniformly distributed with the elastic sheet that several radially outwardly inclined extends, the outside of the elastic sheet and the inside of sealing cover abut contact to make the elastic member keep the clamping force of expansion piece and then prevent the lower joint from dropping out tapered hole.
[0006] Further, in order to connect two pipe piles, and guarantee the structural strength of connecting rod by the hexagonal structure of rod body;The connecting rod further includes the rod body with hexagonal cross section, the lower joint is arranged on the lower side of the rod body, and the upper joint for connecting with the upper pipe pile is further arranged on the upper side of the rod body.
[0007] Further, in order to form the second anti-dropping structure, cooperate with the lower joint and tapered hole of tapered structure, improve the locking force of expansion piece to connecting rod;The upper one-way sawtooth is uniformly distributed on the lower joint along the axial direction, the upper side of the upper one-way sawtooth is horizontal plane, the outer side of the upper one-way sawtooth is wedge surface, which is inclined and extends inward from top to bottom, the lower one-way sawtooth is correspondingly arranged in the tapered hole for cooperating with the upper one-way sawtooth, the lower side of the lower one-way sawtooth is horizontal plane, and the outer side of the lower one-way sawtooth is wedge surface, which is inclined and extends inward from top to bottom.
[0008] Further, in order to form the accommodation cavity with adjustable size; the expansion member comprises a plurality of unconnected expansion units, the plurality of expansion units are arranged in a ring shape around the outer periphery of the connecting rod, and the expansion units are in abutting contact with the connecting rod to prevent the lower joint from being pulled out of the conical hole; and the outer periphery of the expansion member is provided with a ring-shaped groove for mounting the elastic member.
[0009] Further, in order to ensure that the elastic member has elasticity to be expanded when the expansion member is expanded and to be reset when the expansion member is contracted, the expansion member is clamped, and the clamping force of the expansion member on the connecting rod is maintained; the elastic member comprises a ring-shaped body, the ring-shaped body is provided with a broken part to ensure that the elastic member has a space for elastic deformation, and the elastic piece extends radially and outwardly from the ring-shaped body, and one of the plurality of elastic pieces is arranged on the broken part to ensure the resilience of the broken part.
[0010] Compared with the prior art, the utility model has the following advantages: the utility model forms a conical connecting structure between the connecting rod and the expansion member, when the connecting rod is inserted into the expansion member, the structure that the lower end diameter of the lower joint is larger than the upper end diameter of the lower joint can effectively prevent the joint from being pulled out of the conical hole, and the clamping between the upper one-way sawtooth of the lower joint and the lower one-way sawtooth in the conical hole has a second layer of anti-pulling-out effect, compared with the traditional cylindrical joint connecting structure, the conical connecting structure is more stable, in addition to the elastic member itself being used to clamp the expansion member, a plurality of elastic pieces are arranged on the elastic ring, the rebound force generated by the abutting contact between the outer side of the elastic piece and the inner wall of the sealing cover is used to further speed up the resilience of the elastic member, in addition, one of the plurality of elastic pieces of the elastic member is located on the broken part, which can effectively ensure the resilience of the broken part of the elastic member, thereby ensuring the clamping force of the elastic member on the expansion member, and further ensuring the clamping force of the expansion member on the connecting rod, and preventing the connecting rod from being pulled out of the expansion member. BRIEF DESCRIPTION OF DRAWINGS
[0011] The utility model will be further described below with reference to the drawings and in conjunction with the embodiments:
[0012] Fig. 1 It is a structural schematic view of the utility model;
[0013] Fig. 2 It is a half cut structure view of the utility model;
[0014] Fig. 3 It is a structural schematic view of the connecting rod.
[0015] In the drawing: connecting rod 1; lower joint 11; rod body 12; upper joint 13; upper one-way sawtooth 14; expansion member 2; conical hole 21; lower one-way sawtooth 22; ring-shaped groove 23; elastic ring 3; elastic piece 31; broken part 32; sealing cover 4. Detailed Implementation
[0016] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments:
[0017] Example: Figs. 1-3 As shown, this embodiment provides a mechanical connection assembly, including a connecting rod 1, an expansion member 2, an elastic member, and a sealing cap 4. One end of the connecting rod 1 is provided with a lower connector 11 inserted into the expansion member 2. The expansion member 2 is provided with a tapered hole 21 with an upper diameter smaller than the lower diameter. The lower connector 11 is correspondingly tapered with an upper diameter smaller than the lower diameter. The elastic member is installed inside the sealing cap 4 and is arranged around the outer periphery of the expansion member 2. Several radially outwardly inclined spring pieces 31 are evenly distributed on the elastic member. The outer side of the spring piece 31 abuts against the inner side of the sealing cap 4 so that the elastic member maintains a clamping force on the expansion member 2, thereby preventing the lower connector 11 from coming out of the tapered hole 21.
[0018] In this embodiment, in order to connect the two pipe piles and ensure the structural strength of the connecting rod 1 by means of the hexagonal structure of the rod body 12, the connecting rod 1 also includes a rod body 12 with a hexagonal cross-section, the lower connector 11 is provided on the lower side of the rod body 12, and the upper side of the rod body 12 is also provided with an upper connector 13 for connecting with the upper pipe pile.
[0019] In this embodiment, in order to form a second anti-detachment structure, the lower connector 11 with a conical structure and the conical hole 21 are used to improve the locking force of the expansion member 2 on the connecting rod 1. The lower connector 11 has a plurality of upper one-way saw teeth 14 evenly distributed along the axial direction. The upper side of the upper one-way saw teeth 14 is a horizontal plane, and the outer side of the upper one-way saw teeth 14 is a wedge-shaped surface that extends inward from top to bottom. The conical hole 21 is provided with a lower one-way saw tooth 22 for cooperating with the upper one-way saw teeth 14. The lower side of the lower one-way saw tooth 22 is a horizontal plane, and the outer side of the lower one-way saw tooth 22 is a wedge-shaped surface that extends inward from top to bottom.
[0020] In this embodiment, in order to form a retractable and adjustable accommodating cavity, the expansion member 2 includes several non-connected expansion units, which together form an annular structure surrounding the outer periphery of the connecting rod 1. The expansion units abut against the connecting rod 1 to prevent the lower connector 11 from dislodging from the tapered hole 21. The outer peripheral surface of the expansion member 2 is provided with an annular groove 23 for installing an elastic element.
[0021] In the embodiment, in order to ensure that the elastic member has elasticity to be opened when the expansion member 2 is expanded and to be reset when the expansion member 2 is contracted, the expansion member 2 is clamped to maintain the clamping force of the expansion member 2 to the connecting rod 1; the elastic member comprises an annular body, the annular body is provided with a broken part 32 to ensure that the elastic member has a space for elastic deformation, the elastic sheet 31 is inclined and extended radially outward from the annular body, and one of the plurality of elastic sheets 31 is arranged on the broken part 32 to ensure the resilience of the broken part 32.
[0022] The utility model discloses a taper connecting structure is formed between connecting rod 1 and expansion member 2, when connecting rod 1 is inserted into expansion member 2, the structure that the lower end diameter of lower joint 11 is greater than the upper end diameter of lower joint 11 can effectively prevent the joint from coming out of taper hole 21, and the clamping between the upper one-way sawtooth 14 of lower joint 11 and the lower one-way sawtooth 22 in taper hole 21 plays the second layer anti -drop effect, compared with traditional cylindrical joint connecting structure, the taper connecting structure of the utility model is more stable, in addition, the utility model utilizes the elasticity of elastic member to clamp expansion member 2, a plurality of elastic sheets 31 are arranged on elastic ring 3, the rebound force generated by the abutting contact between the outer side of elastic sheet 31 and the inner wall of sealing cover 4 further accelerates the resilience of the elastic member, in addition, one of the plurality of elastic sheets 31 of the utility model is located at broken part 32, which can effectively ensure the resilience of the broken part 32 of the elastic member, thereby ensuring the clamping force of the elastic member to expansion member 2, further ensuring the clamping force of expansion member 2 to connecting rod 1, and preventing connecting rod 1 from coming out of expansion member 2.
[0023] The above-mentioned is only the embodiment of the utility model, and does not limit the patent protection scope of the utility model, and any equivalent structure or equivalent process conversion using the contents of the utility model specification and drawings, or direct or indirect application in other related technical fields, are all included in the patent protection scope of the utility model.
Claims
1. A mechanical connection assembly, characterized by: The utility model relates to a connecting rod, expansion piece, elastic piece and sealing cover, one end of the connecting rod is equipped with lower joint inserted in the expansion piece, the expansion piece is equipped with the tapered hole of upper side diameter less than lower side diameter, the lower joint corresponds to the tapered structure of upper side diameter less than lower side diameter, the elastic piece is installed in the sealing cover and the elastic piece is arranged on the outer periphery of expansion piece, the elastic piece is uniformly distributed with a plurality of radially outward inclined extension spring leaf, the outer side of spring leaf and the inner side of sealing cover abut contact to make the elastic piece keep the hoop stress of expansion piece and prevent the lower joint from coming out of the tapered hole.
2. The mechanical connection assembly of claim 1, wherein: The connecting rod further includes a rod body with a hexagonal cross section, the lower joint is arranged on the lower side of the rod body, and the upper side of the rod body is further provided with an upper joint for connecting with the upper pipe pile.
3. The mechanical connection assembly of claim 1, wherein: The upper side of the upper unidirectional sawtooth is a horizontal surface, and the outer side of the upper unidirectional sawtooth is a wedge surface extending inwardly and downwardly from top to bottom.
4. The mechanical connection assembly of claim 1, wherein: The expansion piece includes a plurality of unconnected expansion units, the plurality of expansion units are combined to form an annular structure arranged around the outer periphery of the connecting rod, and the expansion units abut the connecting rod to prevent the lower joint from coming out of the tapered hole.
5. The mechanical connection assembly of claim 1, wherein: The elastic piece includes an annular body, the annular body is provided with a broken part to ensure that the elastic piece has a spring deformation space, the spring leaf extends outwardly and radially from the annular body, and one of the plurality of spring leaves is arranged on the broken part to ensure the resilience of the broken part.