A square pile connection component
By using a combination of insert rods, spring clips, and springs, the stability and ease of adjustment of the prefabricated component connection assembly are solved, achieving stable connection and unidirectional fixation under manufacturing errors, and ensuring the stability and easy adjustment of the connection assembly.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WEIYI BUILDING MATERIALS (NANTONG) CO LTD
- Filing Date
- 2025-08-14
- Publication Date
- 2026-07-03
Smart Images
Figure CN224451602U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a connecting device, and more particularly to a square pile connecting assembly for connecting two prefabricated components. Background Technology
[0002] With the development of precast component connection technology, a rapid connection technology for precast components has emerged. This technology typically involves pre-embedded sleeves at the connection point of two precast components, and the connection between the two precast components is achieved by locking the two pre-embedded sleeves with a rod and an elastic element. In traditional technology, the elastic element is usually fixedly connected to the rod. The elastic element includes multiple spring pieces that can abut against the inner wall of the pre-embedded sleeve and prevent the rod from coming out of the pre-embedded sleeve.
[0003] For example, patent CN220620726U discloses a connecting assembly and a prefabricated component. The connecting assembly includes a first sleeve, a second sleeve, an intermediate sleeve, a connecting sleeve, and a plug rod. The intermediate sleeve has a stepped portion at one end away from the first sleeve. The stepped portion includes a positioning abutment surface and a safety abutment surface with a height difference. The connecting sleeve includes a connecting portion and an elastic portion that are interconnected. The elastic portion includes multiple spring pieces that can elastically contract into the intermediate sleeve and elastically expand to abut against the positioning abutment surface or the safety abutment surface. The outer peripheral wall of the elastic portion has a first stress-relieving groove. The elastic portion can break along the first stress-relieving groove when subjected to force. After breaking, the groove wall of the first stress-relieving groove forms a guide slope. The broken portion of the elastic portion forms a snap-fit piece. The guide slope is used to guide the snap-fit piece to slide towards the axis of the connecting sleeve at one end away from the intermediate sleeve.
[0004] In the aforementioned patent, the connecting sleeve needs to be fixed to the end of the insert rod first. Then, as the insert rod passes through the intermediate sleeve, the connecting sleeve unfolds at its end and abuts against the stepped part of the intermediate sleeve, thus fixing the insert rod and the intermediate sleeve relatively. This has a certain drawback: the position of the elastic part of the connecting sleeve along the long axis of the insert rod changes between the contracted and unfolded states. Taking the end of the insert rod extending into the second sleeve as the starting point, the vertical distance from the end position of the elastic part in the contracted state to the starting point is longer than the vertical distance from the end position of the elastic part in the unfolded state. This may result in a certain gap between the connecting sleeve and the intermediate sleeve along the long axis of the insert rod when the contracted connecting part passes through the intermediate sleeve and then unfolds. In other words, there will be a certain gap between the insert rod and the intermediate sleeve, leading to loosening of the entire connecting assembly and ultimately affecting the stability of the connection between the prefabricated components.
[0005] Furthermore, in actual production applications, manufacturing errors and working conditions often lead to certain deviations in the distance between the first and second sleeves. This means the length of the insert rod extending into the second sleeve varies. However, in the aforementioned structure, the length of the insert rod extending into the second sleeve is determined by the fit between the intermediate sleeve and the connecting sleeve. The insert rod and the intermediate sleeve are connected by a movable insertion method, without any fixing components. The distance is changed only through threaded adjustment between the connecting sleeve and the insert rod. However, this method is limited by the elastic part of the connecting sleeve. If the connecting sleeve is too far from the intermediate sleeve, the elastic part cannot abut against the end face of the intermediate sleeve. This results in a loss of positional restraint between the insert rod and the intermediate sleeve, causing the insert rod to move within the intermediate sleeve and leading to unstable connection and inconvenient adjustment. Utility Model Content
[0006] The technical problem to be solved by this utility model is to provide a square pile connection component that is convenient to connect, stable and easy to adjust.
[0007] To solve the above-mentioned technical problems, the technical solution of this utility model is: a square pile connection component, the innovation of which is: including a first sleeve, a second sleeve, and a connector for connecting the first sleeve and the second sleeve, wherein the connector includes a plug rod, an intermediate sleeve, a spring, and a deformable spring clip;
[0008] The first and second sleeves have first and second ends that are disposed opposite to each other;
[0009] The intermediate sleeve, spring clip, and spring are coaxially housed within the first sleeve.
[0010] The intermediate sleeve is located at the first end of the first sleeve, and the center of the intermediate sleeve has a through cavity, the section of which away from the first end is an inner conical sleeve section;
[0011] The center of the spring clip has a deformable engagement cavity, the inner wall of which is provided with a first engagement structure in the form of an annular or internal thread, and the outer surface of the spring clip has an outer conical sleeve section for cooperating with the inner conical sleeve section of the intermediate sleeve to control the contraction or reset of the engagement cavity.
[0012] The spring clip is pressed against the intermediate sleeve by a spring, so that the outer conical sleeve of the spring clip is embedded in the inner conical sleeve of the intermediate sleeve;
[0013] The insertion rod is disposed inside the second sleeve and extends out of the second end of the second sleeve. A second engagement structure that can engage with the first engagement structure is provided on the outer surface of the insertion rod.
[0014] The insertion rod can pass through the through cavity of the intermediate sleeve and then be inserted into the engagement cavity of the spring clip to achieve the connection between the insertion rod and the spring clip.
[0015] Furthermore, the front end of the insertion rod has an expansion guide head, the size of which is not smaller than the size of the first engagement structure of the insertion rod;
[0016] The spring clip can move away from or close to the middle sleeve within the first sleeve under the action of the insert rod and the spring, thereby allowing the spring clip to switch between the first, second and third states.
[0017] In the first state, the insert rod and the spring clip are not in contact. Under the action of the spring, the outer conical sleeve of the spring clip is embedded in the inner conical sleeve of the middle sleeve and pressed against the inner wall of the inner conical sleeve. The inner diameter of the first engagement structure of the engagement cavity is not greater than the size of the second engagement structure of the insert rod. At this time, the engagement cavity of the spring clip is in a contracted state.
[0018] In the second state, under the push of the insert rod, the spring overcomes the deformation force of the spring. In the inner conical sleeve section of the outer conical sleeve section away from the middle sleeve, the inner diameter of the first engagement structure of the engagement cavity is not greater than the size of the second engagement structure of the insert rod, and the engagement cavity of the spring is in a natural state.
[0019] In the third state, under the push of the insert rod, the spring clip overcomes the deformation force of the spring. In the inner conical sleeve section of the outer conical sleeve section away from the middle sleeve, the inner diameter of the first engagement structure of the engagement cavity is larger than the size of the second engagement structure of the insert rod, and not smaller than the size of the expansion guide head. The engagement cavity of the spring clip is in an open state.
[0020] Furthermore, the insertion rod has an expansion guide head, a retaining section, a transition section, a second engagement structure, a platform stage, and a third engagement structure arranged in sequence. The third engagement structure engages and is fixed with the second sleeve. The size of the transition section is smaller than the size of the second engagement structure. The size of the retaining section is not smaller than the size of the second engagement structure. The size of the platform stage is larger than the size of the second engagement structure.
[0021] The intermediate sleeve has a through cavity through which the insertion rod passes. The through cavity is stepped and consists of an inner conical sleeve section, a limiting section, and an insertion section. The dimensions of the inner conical sleeve section, the limiting section, and the insertion section are all larger than the dimensions of the expansion guide head, the holding section, the transition section, and the second engagement structure of the insertion rod. The dimension of the limiting section is smaller than the dimension of the step stage. The dimension of the insertion section is not smaller than the dimension of the step stage and is smaller than the dimension of the third engagement structure.
[0022] The outer wall of the spring clip is also stepped, consisting of an outer cylindrical section and an outer conical sleeve section, with the outer cylindrical section being larger than the inner conical sleeve section. The spring clip also has a deformation groove that allows the spring clip to switch between the first, second, and third states.
[0023] The spring is a conical spring, with the smaller side of the spring abutting against the end of the spring clip, and the larger side abutting against the inner wall of the first sleeve.
[0024] Furthermore, there are four deformation grooves, which are distributed in a ring shape on the spring clip. One of the deformation grooves is a through groove that extends out of the outer conical sleeve section on one side and out of the outer cylindrical section on the other side. The remaining three deformation grooves are blind grooves that extend out of the outer conical sleeve section on one side and to the outer cylindrical section on the other side.
[0025] Furthermore, the platform stage is an external hexagonal step, and the insertion section is an internal hexagonal hole.
[0026] Furthermore, the side of the spring clip away from the intermediate sleeve has a slot for the smaller side of the spring to extend into, and this slot is connected to the engagement cavity.
[0027] The advantages of this utility model are as follows: The connecting component in this utility model uses the cooperation of a plug rod, a spring clip, an intermediate sleeve and a spring to connect the first sleeve and the second sleeve. The spring clip, the intermediate sleeve and the spring are all set inside the first sleeve. One side of the plug rod is threaded to the second sleeve, and the other side is directly inserted into the spring clip inside the first sleeve for fixation, which is very convenient.
[0028] Moreover, using the above-mentioned connection method, even if a gap occurs between the two sleeves due to manufacturing errors or other reasons, the connection can still be made well, and the gap can be compensated, without any loosening due to the existence of the gap.
[0029] The fixing between the insert rod and the spring clip is achieved by the deformation of the spring clip to cooperate with the insert rod, thus fixing the spring clip and the insert rod relatively. One side of the spring clip is fixed by a middle sleeve, and the other side is held in place by a spring. The spring holds the spring clip in place so that it can cooperate with the insert rod later. It is convenient for the insert rod to extend into the spring clip at any length and engage with the spring clip, which facilitates adjustment. Moreover, by controlling the size of the holding section on the insert rod, the spring clip can also be unidirectionally limited to prevent it from coming off the insert rod.
[0030] In addition, by cooperating with the inner conical sleeve section of the intermediate sleeve and the outer conical sleeve section of the spring clip, after the second engagement structure of the insertion rod engages with the first engagement structure of the spring clip, the size of the inner and outer conical sleeve sections is controlled, and the conical surfaces of the two are fitted together to achieve a one-way restriction on the insertion rod, so that the insertion rod can only be inserted in one direction and cannot be withdrawn in the opposite direction, thereby ensuring the stable connection between the insertion rod and the spring clip.
[0031] The slot for the spring to be inserted into the side of the spring clip serves to limit the relative position of the spring and the spring clip by extending one side of the spring into the spring clip, so as to ensure that the spring can stably press the spring clip against one side of the middle sleeve. Attached Figure Description
[0032] Figure 1 This is a schematic diagram of the square pile connection component of this utility model.
[0033] Figure 2 This is a cross-sectional view of the insertion rod in this utility model.
[0034] Figure 3 This is a cross-sectional view of the spring clip in this utility model.
[0035] Figure 4 This is a cross-sectional view of the other side of the spring clip of this utility model.
[0036] Figure 5 This is a cross-sectional view of the intermediate sleeve in this utility model. Detailed Implementation
[0037] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.
[0038] like Figures 1-5 The square pile connection assembly shown includes a first sleeve 1, a second sleeve 2, and a connector for connecting the first sleeve 1 and the second sleeve 2. The connector includes a rod 3, an intermediate sleeve 4, a spring 6, and a deformable spring clip 5.
[0039] The first sleeve 1 and the second sleeve 2 have first and second ends that are arranged opposite to each other.
[0040] The intermediate sleeve 4, spring clip 5, and spring 6 are coaxially housed within the first sleeve 1.
[0041] The intermediate sleeve 4 is located at the first end of the first sleeve 1. The intermediate sleeve 4 has a through cavity at its center, and the section of the through cavity away from the first end is an inner conical sleeve section 41.
[0042] The spring clip 5 has a deformable engagement cavity at its center. The inner wall of the engagement cavity is provided with a first engagement structure 53 in the shape of an annular or internal thread. The outer surface of the spring clip 5 has an outer conical sleeve section 52 for cooperating with the inner conical sleeve section 41 of the intermediate sleeve 4 to control the contraction or reset of the engagement cavity.
[0043] The spring clip 5 is pressed against the intermediate sleeve 4 by the spring 6, so that the outer conical sleeve section 52 of the spring clip 5 is embedded in the inner conical sleeve section 41 of the intermediate sleeve 4.
[0044] The insertion rod 3 is disposed inside the second sleeve 2 and extends out of the second end of the second sleeve 2. A second engagement structure 33 is provided on the outer surface of the insertion rod 3, which can engage with the first engagement structure 53.
[0045] The insertion rod 3 can pass through the through cavity of the intermediate sleeve 4 and then be inserted into the engagement cavity of the spring clip 5 to achieve the connection between the insertion rod 3 and the spring clip 5.
[0046] The front end of the insertion rod 3 has an expansion guide head 31, the size of which is not smaller than the size of the first engagement structure 33 of the insertion rod 3.
[0047] The spring clip 5 can move away from or close to the middle sleeve within the first sleeve under the action of the insertion rod and the spring, thereby allowing the spring clip to switch between the first, second and third states.
[0048] In the first state, the insert rod 3 and the spring clip 5 are not in contact. Under the action of the spring 6, the outer conical sleeve 52 of the spring clip 5 is embedded in the inner conical sleeve 41 of the intermediate sleeve 4 and pressed against the inner wall of the inner conical sleeve 41. The inner diameter of the first engagement structure 53 of the engagement cavity is not greater than the size of the second engagement structure 33 of the insert rod 4. At this time, the engagement cavity of the spring clip 4 is in a contracted state.
[0049] In the second state, under the push of the insert rod 3, the spring clip 5 overcomes the deformation force of the spring 6, and the outer conical sleeve section 52 of the spring clip 5 is far away from the inner conical sleeve section 41 of the intermediate sleeve 4. The inner diameter of the first engagement structure 53 of the engagement cavity is not greater than the size of the second engagement structure 33 of the insert rod 3, and the engagement cavity of the spring clip 5 is in a natural state.
[0050] In the third state, under the push of the insert rod 3, the spring clip 5 overcomes the deformation force of the spring 6. The outer conical sleeve section 52 of the spring clip 5 is far away from the inner conical sleeve section of the intermediate sleeve 4. The inner diameter of the first engagement structure of the engagement cavity is larger than the size of the second engagement structure 33 of the insert rod 3, and not smaller than the size of the expansion guide head 31. The engagement cavity of the spring clip 5 is in an open state.
[0051] Specifically, such as Figure 2As shown in the schematic diagram, the insert 3 has an expansion guide head 31, a retaining section 36, a transition section 32, a second engagement structure 33, a platform stage 34, and a third engagement structure 35 arranged sequentially. The expansion guide head 31 is frustum-shaped, and the bottom edge of the larger side of the expansion guide head 31 is adjacent to the retaining section 36. The transition section 32 is a smooth rod section. The outer surface of the second engagement structure 33 has a ring-shaped or internally threaded tooth structure. The third engagement structure 35 has externally threaded teeth and is threadedly fixed to the second sleeve 2. The inner wall of the second sleeve 2 has an internally threaded structure that is threadedly engaged with the third engagement structure 35. The size of the transition section 32 is smaller than the size of the second engagement structure 33. The size of the retaining section 36 is not smaller than the size of the second engagement structure 33. The size of the platform stage 34 is larger than the size of the second engagement structure 33 and smaller than the size of the third engagement structure 35.
[0052] like Figure 5 As shown in the schematic diagram, the outer wall of the intermediate sleeve 4 has external thread teeth, and the inner wall of the first sleeve 1 also has an internal thread structure that is threaded to the intermediate sleeve 4. A through cavity is opened on the intermediate sleeve 4 to allow the insertion rod 3 to pass through. The through cavity is stepped and consists of an inner conical sleeve section 41, a limiting section 42, and an insertion section 43 in sequence. The dimensions of the inner conical sleeve section 41, the limiting section 42, and the insertion section 43 are all larger than the dimensions of the expansion guide head 31, the holding section 36, the transition section 32, and the second engagement structure 33 of the insertion rod 3. The dimension of the limiting section 42 is smaller than the dimension of the platform stage 34. The dimension of the insertion section 43 is not smaller than the dimension of the platform stage 34 and is smaller than the dimension of the third engagement structure 35.
[0053] The platform section 34 is an external hexagonal step, and the insertion section 43 is an internal hexagonal hole. The design of the external hexagonal step and the internal hexagonal hole is to facilitate the threaded fixing between the insertion rod 3 and the second sleeve 2, as well as the threaded fixing between the intermediate sleeve 4 and the first sleeve 1.
[0054] like Figure 3 As shown in the schematic diagram, the outer wall of the spring clip 5 is also stepped, consisting of an outer cylindrical section 51 and an outer conical sleeve section 52. The size of the outer cylindrical section 51 is larger than that of the inner conical sleeve section 41. The spring clip 5 also has a deformation groove 55 that allows the spring clip 5 to switch between the first, second, and third states.
[0055] There are four deformation grooves 55, arranged in a ring on the spring clip 5, and one of the deformation grooves 55 is a through groove extending from one side out of the outer conical sleeve section 52 and from the other side out of the outer cylindrical section 51, such as... Figure 3 As shown, the remaining three deformation grooves 55 are blind grooves extending from one side of the outer conical sleeve section 52 and from the other side to the outer cylindrical section 51, as... Figure 4 As shown.
[0056] Spring 6 is a conical spring, with the smaller side of spring 6 abutting against the end of spring clip 5, and the larger side of spring 6 abutting against the inner wall of the first sleeve 1.
[0057] On the side of the spring clip 5 away from the intermediate sleeve 4, there is a slot 54 for the smaller side of the spring 6 to extend into, and this slot 54 is connected to the engagement cavity. The slot 54 on the side of the spring clip 5 for the spring 6 to extend into the spring clip 5 serves to limit the relative position of the spring 6 and the spring clip 5, so as to ensure that the spring 6 can stably press the spring clip 5 against one side of the intermediate sleeve 4.
[0058] Working principle: When the connecting component in this utility model is used to cooperate with two prefabricated components to realize the connection between the two prefabricated components, firstly, the first sleeve 1 and the second sleeve 2 are respectively connected to the side of the two prefabricated components that need to be connected. The insert rod 3 is threadedly connected in the second sleeve 2. The spring 6, the spring clip 5 and the intermediate sleeve 4 are placed in the first sleeve 1 in sequence and fixed by the thread between the intermediate sleeve 4 and the second sleeve 2.
[0059] The spring 6 and the spring clip 5 are fixed inside the first sleeve 1. At this time, the spring clip 5 is in the first state. Then, the insert rod 3 passes through the middle sleeve 4 and extends into the spring clip 5. As the insert rod 3 extends, when the side of the expansion guide head 31 adjacent to the holding section 36 is about to move to the spring clip 5, since the size of the expansion guide head 31 on this side is larger than the size of the first engagement structure 53, it will push the spring clip 5 towards the spring 6, so that the spring 6 is squeezed and compressed. At this time, the spring clip 5 moves from the first state to the second state.
[0060] As the insert rod 3 continues to extend, the spring clip 5 changes from the first state to the third state. The expansion guide head 31 expands the engagement cavity of the spring clip 5 outward and enters the engagement cavity of the spring clip 5. As the insert rod 3 continues to extend, the expansion guide head 31 passes through the first engagement structure 53 until the second engagement structure 33 of the insert rod 3 engages with the first engagement structure 53. At this time, the spring clip 5 is in the second state, realizing the relative fixation between the insert rod 3 and the spring clip 5. The insert rod 3 is pushed into the second sleeve 2 to the required length as needed, realizing the connection between the first sleeve 1 and the second sleeve 2, thus completing the connection between the two prefabricated components. The whole connection process is very convenient, and the length to which the insert rod 3 needs to be pushed into the first sleeve 1 can be selected as needed, which also facilitates adjustment.
[0061] In the above-described cooperation, after the second engagement structure 33 of the insert rod 3 has engaged with the first engagement structure 53, when the insert rod 3 is pulled in the opposite direction towards the second sleeve 2, the insert rod 3 will pull the spring clip 5 from the second state to the first state. That is, the engagement cavity of the spring clip 5 will gradually contract, which will cause the first engagement structure 53 to engage more tightly with the second engagement structure 33, and the connection will be tighter, thus ensuring that the insert rod 3 will not be easily pulled out of the spring clip 5, and thus ensuring the stability of the connection.
[0062] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.
Claims
1. A pile connector assembly, characterized by: It includes a first sleeve, a second sleeve, and a connector for connecting the first sleeve and the second sleeve. The connector includes a rod, an intermediate sleeve, a spring, and a deformable spring clip. The first and second sleeves have first and second ends that are disposed opposite to each other; The intermediate sleeve, spring clip, and spring are coaxially housed within the first sleeve. The intermediate sleeve is located at the first end of the first sleeve, and the center of the intermediate sleeve has a through cavity, the section of which away from the first end is an inner conical sleeve section; The center of the spring clip has a deformable engagement cavity, the inner wall of which is provided with a first engagement structure in the form of an annular or internal thread, and the outer surface of the spring clip has an outer conical sleeve section for cooperating with the inner conical sleeve section of the intermediate sleeve to control the contraction or reset of the engagement cavity. The spring clip is pressed against the intermediate sleeve by a spring, so that the outer conical sleeve of the spring clip is embedded in the inner conical sleeve of the intermediate sleeve; The insertion rod is disposed inside the second sleeve and extends out of the second end of the second sleeve. A second engagement structure that can engage with the first engagement structure is provided on the outer surface of the insertion rod. The insertion rod can pass through the through cavity of the intermediate sleeve and then be inserted into the engagement cavity of the spring clip to achieve the connection between the insertion rod and the spring clip.
2. A pile connector assembly according to claim 1, wherein: The front end of the insertion rod has an expansion guide head, the size of which is not less than the size of the first engagement structure of the insertion rod; The spring clip can move away from or close to the middle sleeve within the first sleeve under the action of the insert rod and the spring, thereby allowing the spring clip to switch between the first, second and third states. In the first state, the insert rod and the spring clip are not in contact. Under the action of the spring, the outer conical sleeve of the spring clip is embedded in the inner conical sleeve of the middle sleeve and pressed against the inner wall of the inner conical sleeve. The inner diameter of the first engagement structure of the engagement cavity is not greater than the size of the second engagement structure of the insert rod. At this time, the engagement cavity of the spring clip is in a contracted state. In the second state, under the push of the insert rod, the spring overcomes the deformation force of the spring. In the inner conical sleeve section of the outer conical sleeve section away from the middle sleeve, the inner diameter of the first engagement structure of the engagement cavity is not greater than the size of the second engagement structure of the insert rod, and the engagement cavity of the spring is in a natural state. In the third state, under the push of the insert rod, the spring clip overcomes the deformation force of the spring. In the inner conical sleeve section of the outer conical sleeve section away from the middle sleeve, the inner diameter of the first engagement structure of the engagement cavity is larger than the size of the second engagement structure of the insert rod, and not smaller than the size of the expansion guide head. The engagement cavity of the spring clip is in an open state.
3. A pile connector assembly according to claim 2, wherein: The insertion rod has an expansion guide head, a holding section, a transition section, a second engagement structure, a platform stage, and a third engagement structure arranged in sequence. The third engagement structure engages and is fixed with the second sleeve. The size of the transition section is smaller than the size of the second engagement structure. The size of the holding section is not smaller than the size of the second engagement structure. The size of the platform stage is larger than the size of the second engagement structure. The intermediate sleeve has a through cavity through which the insertion rod passes. The through cavity is stepped and consists of an inner conical sleeve section, a limiting section, and an insertion section. The dimensions of the inner conical sleeve section, the limiting section, and the insertion section are all larger than the dimensions of the expansion guide head, the holding section, the transition section, and the second engagement structure of the insertion rod. The dimension of the limiting section is smaller than the dimension of the step stage. The dimension of the insertion section is not smaller than the dimension of the step stage and is smaller than the dimension of the third engagement structure. The outer wall of the spring clip is also stepped, consisting of an outer cylindrical section and an outer conical sleeve section, with the outer cylindrical section being larger than the inner conical sleeve section. The spring clip also has a deformation groove that allows the spring clip to switch between the first, second, and third states. The spring is a conical spring, with the smaller side of the spring abutting against the end of the spring clip, and the larger side abutting against the inner wall of the first sleeve.
4. A pile connector assembly according to claim 3, wherein: There are four deformation grooves, which are distributed in a ring shape on the spring clip. One of the deformation grooves is a through groove that extends out of the outer conical sleeve section on one side and out of the outer cylindrical section on the other side. The remaining three deformation grooves are blind grooves that extend out of the outer conical sleeve section on one side and out of the outer cylindrical section on the other side.
5. The pile connector assembly of claim 3, wherein: The platform section is an external hexagonal step, and the insertion section is an internal hexagonal hole.
6. A pile connector assembly according to claim 1 or 3, wherein: The spring clip has a slot on the side away from the middle sleeve, which allows the smaller side of the spring to extend into it, and this slot is connected to the engagement cavity.