Prestressed pile mechanical connecting piece
By using a deformation sealing module in the mechanical connector of prestressed piles, the problems of locking component movement and sealing are solved, achieving stable mating and sealing protection, and ensuring the reliability and protective effect of the connector.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGSHAN 666 INTELLIGENT EQUIP CO LTD
- Filing Date
- 2025-03-25
- Publication Date
- 2026-04-17
AI Technical Summary
When existing prestressed connectors are connected by a tapered screw head and a locking component, the locking component is prone to movement, leading to unstable connections. Furthermore, the lack of a sealing structure makes it easy for particulate matter to enter, causing the connectors to become unusable.
A mechanical connector for prestressed piles was designed, which uses a deformation sealing module with a first sealing ring and a second sealing ring spaced apart. The locking element is squeezed to achieve interlocking and locking, and a deformation space is formed in the cavity to constrain the position of the locking ring, prevent misalignment, and provide sealing protection.
This achieves a stable interlocking connection of the locking elements, preventing the entry of particles, improving the reliability and sealing of the connection, preventing damage to the connectors, and ensuring the normal use of the prestressed piles.
Smart Images
Figure CN224133727U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical connectors, and in particular to a mechanical connector for prestressed piles. Background Technology
[0002] In existing prestressed connectors, when connecting the connector to the locking component, a tapered screw head needs to be pressed into the locking component. The locking component is then expanded under the support of the tapered screw head. This means that when the tapered screw head is pressed down to engage with the locking component, it squeezes the locking component, causing multiple locking units to move outwards, allowing the tapered screw head to be pressed into the locking component.
[0003] However, because multiple locking units need to move outwards individually when the tapered screw head is inserted into the locking component, the entire locking component within the connecting parts has space to move outwards.
[0004] Based on the above, the technical problem of the prior art is that the locking part is movably set in the connecting part, but there is no accessory to constrain the position of the locking part. As a result, when the connecting part and the locking part are connected by mating, the locking part is prone to not maintaining the mating position due to the movement of the setting, which makes it impossible for the connecting part and the locking part to be connected by mating.
[0005] Meanwhile, since the locking unit needs to shift within the connecting component to achieve mating and locking, this means there is a space for movement between the locking unit and the inner wall of the connecting component, and this space lacks a sealing structure. Furthermore, this technology is applied in the field of mechanical connections, and especially when used on outdoor construction sites, particulate matter can easily enter. When particulate matter is located in this space, it can prevent the locking unit from moving, rendering the entire connecting component unusable, or even rendering the entire prestressed pile unusable. Utility Model Content
[0006] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a mechanical connector for prestressed piles.
[0007] A mechanical connector for prestressed piles designed for this purpose includes a connector, wherein a first interlocking structure is provided on the lower outer wall of the connector;
[0008] The locking assembly includes at least a receiving module and a locking module;
[0009] The accommodating module has a cavity, and the locking module is located inside the cavity. The upper surface of the accommodating module has an opening that communicates with the cavity; the opening constrains the locking module to remain inside the cavity.
[0010] A deformation sealing module is provided inside the cavity. The deformation sealing module includes at least a first sealing ring and a second sealing ring that are spaced apart vertically. A deformation space is formed in the cavity between the first sealing ring and the second sealing ring.
[0011] The locking module includes multiple locking elements, which are arranged in a ring and enclose each other to form a locking ring. The inner wall of the locking elements is provided with a second engagement structure. The first engagement structure engages with the second engagement structure to constrain the connector and keep it within the locking ring.
[0012] Both the first sealing ring and the second sealing ring are in contact with the outer wall of the locking ring, and both the first sealing ring and the second sealing ring are in contact with the cavity wall;
[0013] When the connector is inserted into the locking ring from top to bottom through the opening, it can force the locking element to squeeze the first sealing ring and the second sealing ring, so that the locking element moves toward the deformation space.
[0014] Preferably, the accommodating module includes an accommodating housing, an anti-detachment seat is provided inside the accommodating housing, and an opening is provided on the anti-detachment seat; the cavity is located inside the accommodating housing below the anti-detachment seat.
[0015] Preferably, the first sealing ring is disposed between the anti-detachment seat and the locking ring; the second sealing ring is disposed between the housing and the locking ring.
[0016] Preferably, the first sealing ring is disposed inside the opening.
[0017] Preferably, the upper inner wall of the locking element is provided with a first chamfer; the lower part of the connector is provided with a tapered mating part.
[0018] Preferably, the locking ring is provided with a groove, and a retaining ring is provided in the groove.
[0019] Preferably, the housing module also includes a dustproof housing, which is disposed inside the dustproof housing.
[0020] Preferably, the dustproof housing is provided with a limiting step; the outer wall of the housing abuts against the limiting step to constrain the housing from moving downward relative to the dustproof housing.
[0021] Preferably, the first sealing ring, the retaining ring, and the second sealing ring are arranged in order from top to bottom.
[0022] Preferably, the first occlusal structure and the second occlusal structure occlude with teeth biting each other.
[0023] Compared with the prior art, the present invention provides a deformation sealing module in the cavity, the deformation sealing module including at least a first sealing ring and a second sealing ring arranged at intervals, and a deformation space is formed in the cavity between the first sealing ring and the second sealing ring. This structure has the following advantages.
[0024] The first and second sealing rings, spaced apart vertically, ensure that the multiple locking elements are arranged in a ring shape, thus preventing misalignment of the locking elements and ensuring proper mating and locking with the connector.
[0025] The first and second sealing rings, spaced apart vertically, keep the locking ring composed of multiple locking elements in a preset interlocking position, preventing the locking ring from shifting arbitrarily due to deformation space, thus avoiding positional deviations that could affect the connection with the connecting parts.
[0026] Meanwhile, the first sealing ring effectively isolates external contaminants, preventing dust, impurities, and other external pollutants from entering the cavity and protecting precision components from contamination or corrosion. It also prevents particulate matter from entering the deformation space, thus avoiding foreign objects affecting the movement of the locking elements and preventing them from interlocking. Attached Figure Description
[0027] Figure 1 This is a three-dimensional structural diagram of a mechanical connector;
[0028] Figure 2 This is a cross-sectional structural diagram of a mechanical connector;
[0029] Figure 3 This is an exploded structural diagram of the mechanical connector;
[0030] Figure 4 This is an assembly diagram of the locking module and the deformation sealing module;
[0031] Figure 5 This is an exploded view of the locking module and the deformation sealing module;
[0032] Figure 6 This is a cross-sectional structural diagram of the locking module;
[0033] Figure 7 This is a schematic diagram showing the interlocking connection between the locking module and the connector;
[0034] Figure 8 This is a schematic diagram showing the interlocking connection between the locking module and the connector;
[0035] Figure 9 This is one of the schematic diagrams illustrating the use of mechanical connectors;
[0036] Figure 10 for Figure 9 Enlarged view of point A in the middle;
[0037] Figure 11 This is the second schematic diagram of the use of mechanical connectors;
[0038] Figure 12 for Figure 11Enlarged view of point B in the middle;
[0039] Figure 13 This is the third schematic diagram illustrating the use of mechanical connectors;
[0040] Figure 14 This is the fourth illustration of the use of mechanical connectors;
[0041] Figure 15 This is the fifth illustration of the use of mechanical connectors;
[0042] Figure 16 This is the sixth illustration of the use of mechanical connectors. Detailed Implementation
[0043] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.
[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.
[0045] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary and secondary relationship of the indicated technical features.
[0046] In this document, the term "implementation" means that a specific feature, structure, or characteristic described in connection with an implementation may be included in at least one implementation of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same implementation, nor is it a separate or alternative implementation mutually exclusive with other implementations. It will be explicitly and implicitly understood by those skilled in the art that the implementations described herein can be combined with other implementations.
[0047] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.
[0048] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple groups" refers to two or more (including two groups), and "multiple pieces" refers to two or more (including two pieces).
[0049] In the description of the embodiments of this application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.
[0050] In the description of the embodiments of this application, unless otherwise explicitly specified and limited, the technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.
[0051] See Figures 1-16 A mechanical connector for prestressed piles includes a connector 1, with a first interlocking structure 10 on the lower outer wall of the connector 1; a locking assembly 2, which includes at least a receiving module 3 and a locking module 4; a cavity 30 is provided inside the receiving module 3, and the locking module 4 is disposed inside the cavity 30; an opening 31 communicating with the cavity 30 is provided on the upper surface of the receiving module 3; the opening 31 constrains the locking module 4 to remain within the cavity 30; a deformation sealing module 5 is provided inside the cavity 30, and the deformation sealing module 5 includes at least a first sealing ring 51 and a second sealing ring 52 spaced apart vertically, forming a deformation cavity in the cavity 30 between the first sealing ring 51 and the second sealing ring 52. The locking module 4 includes multiple locking elements 41 arranged in a ring and forming a locking ring 40. The inner wall of the locking element 41 is provided with a second engagement structure 42. The first engagement structure 10 engages with the second engagement structure 42 to constrain the connector 1 to be held in the locking ring 40. The first sealing ring 51 and the second sealing ring 52 are both in contact with the outer wall of the locking ring 40 and the cavity wall of the cavity 30. When the connector 1 is inserted into the locking ring 40 from top to bottom through the opening 31, it can force the locking element 41 to squeeze the first sealing ring 51 and the second sealing ring 52 so that the locking element 41 moves toward the deformation space 9.
[0052] For the operating principle of mechanical fasteners, please refer to [link / reference]. Figures 9 to 12 The connector 1 is used to connect to the first pile base plate 81, and the locking assembly 2 is fixedly connected to the second pile base plate 82. The second pile base plate 82 has a mating slot 821 corresponding to the opening 31, and the diameter of the mating slot 821 is smaller than the diameter of the opening 31. When the first pile base plate 81 and the second pile base plate 82 are connected vertically, the connector 1 passes through the mating slot 821 and the opening 31 from top to bottom, and then inserts into the locking ring 40 for engagement. When the connector 1 contacts the upper inner wall of the locking ring 40 and is inserted into the locking ring 40, it can force multiple locking elements 41 to squeeze the first sealing ring 51 and the second sealing ring 52, so that the locking elements 41 move toward the deformation space 9, so that the connector 1 has space to move downward. When the connector 1 is inserted downward to the preset position, the multiple locking elements 41 have space to move inward. At this time, under the elastic action of the first sealing ring 51 and the second sealing ring 52, both simultaneously drive the multiple locking elements 41 to move toward the connector 1 to tighten the connector 1. When multiple locking elements 41 are pressed by the connector 1 and moved toward the deformation space 9, the locking elements 41 move gradually downwards and outwards at the same time.
[0053] In this utility model, the deformation sealing module 5 serves at least three functions:
[0054] 1. The deformation sealing module 5 serves a sealing function, preventing foreign objects and liquids from entering the cavity 30, ensuring that the deformation space 9 is not obstructed by foreign objects, and ensuring the normal movement of the locking element 41 to achieve interlocking. It also prevents liquid from seeping into the seal. (For example, water can cause rust, slowly damaging the mechanical properties of the components, leading to substandard pipe pile foundations and compromised overall building safety; cement grout can cause the interior to solidify, making it difficult or impossible to tighten the screws, resulting in serious quality accidents such as pile breakage and detachment during construction.)
[0055] 2. The deformation sealing module 5 acts as a constraint, keeping the locking ring 40, composed of multiple locking elements 41, in a preset position. This prevents the locking ring 40 from moving arbitrarily and causing misalignment / eccentricity, which would prevent the connector 1 from being properly aligned during the top-to-bottom insertion process. This greatly ensures assembly efficiency. In existing technologies, because the position of the locking elements cannot be constrained, it is difficult for the connector to align with the locking elements during the hoisting and assembly of the pipe pile. When the locking elements are misaligned, correction is required, and in some cases, it is impossible to correct them, rendering the pipe pile unusable.
[0056] 3. The deformation sealing module 5 serves to push multiple locking elements 41 to tighten the connecting piece 1. In the prior art, the locking unit is constrained by only one elastic metal locking ring, resulting in poor constraint force. When multiple locking units are squeezed and opened by the connecting piece, the elastic metal locking ring is prone to failing to drive the multiple locking units to reset synchronously. When a locking unit fails to reset and tighten the connecting piece, there is a gap in the overall engagement, which can easily lead to unstable connection and detachment. In this invention, the deformation sealing module 5 cooperates with multiple locking elements 41. Under the action of the upper and lower first sealing rings and second sealing rings 52, the multiple locking elements 41 can be synchronously pushed to reset and engage synchronously.
[0057] See Figure 6 The accommodating module 3 includes an accommodating shell 34, within which an anti-detachment seat 33 is disposed, and an opening 31 is disposed on the anti-detachment seat 33; a cavity 30 is located within the accommodating shell 34 below the anti-detachment seat 33. During assembly, the locking module 4 is assembled into the accommodating shell 34, and then the anti-detachment seat 33 is assembled into the cavity 30 from top to bottom. Under the action of the opening 31, the locking module 4 can be restrained from detaching upward from the opening 31.
[0058] See Figure 10 In practical applications, the upper surface of the housing 34 and the upper surface of the anti-detachment seat 33 are both attached to the lower surface of the second pile base plate 82.
[0059] See Figure 7 The first sealing ring 51 is disposed between the anti-detachment seat 33 and the locking ring 40; the second sealing ring 52 is disposed between the housing 34 and the locking ring 40.
[0060] See Figure 7 The first sealing ring 51 is set inside the opening 31. This structure is designed to seal from the source to prevent foreign objects and liquids from entering the cavity 30.
[0061] See Figure 6 The anti-slip seat 33 has a ring structure. The inner wall of the anti-slip seat 33 below the opening 31 is a relief spherical surface 32, and the wall of the locking element 41 facing the relief spherical surface 32 is a fitting spherical surface 411.
[0062] Furthermore, the opening 31 is circular, and the diameter of the opening 31 is less than the maximum diameter of the locking ring 40. This dimensional constraint can keep the locking module 4 within the cavity 30.
[0063] See Figure 3 and Figure 4The upper inner wall of the locking element 41 is provided with a first chamfer 44; the lower part of the connector 1 is provided with a tapered docking part 11. The tapered docking part 11 cooperates with the first chamfer 44 to achieve a guiding function, so that the connector 1 can squeeze the locking element 41 to move the locking element 41 toward the deformation space 9.
[0064] See Figure 2 The locking ring 40 is provided with an annular groove 43, and a retaining spring 6 is provided in the annular groove 43. The function of the retaining spring 6 is to facilitate pre-assembly and to keep multiple locking elements 41 in a ring shape to form the locking ring 40.
[0065] See Figure 10 The receiving module 3 also includes a dustproof housing 7, and the receiving housing 34 is disposed inside the dustproof housing 7. The dustproof housing 7 serves to prevent dust and foreign objects from entering the receiving module 3. Furthermore, when the receiving module 3 is connected to the second post base plate 82, the dustproof housing 7 is welded and fixed to the second post base plate 82, and sealant is applied to the weld joint.
[0066] See Figure 2 The dustproof housing 7 is provided with a limiting step 71; the outer wall of the receiving housing 34 abuts against the limiting step 71 to constrain the receiving housing 34 from moving downward relative to the dustproof housing 7. When the receiving module 3 is connected to the second post base plate 82, the upper surface of the receiving housing 34 is in contact with the second post base plate 82, so that under the constraint of the second post base plate 82 and the limiting step 71, the receiving housing 34 cannot move up or down relative to the receiving housing 34.
[0067] In this invention, the first sealing ring 51, the retaining spring 6, and the second sealing ring 52 are arranged sequentially from top to bottom. The retaining spring 6, located in the middle, ensures that the shape of the locking ring 40 is not misaligned; while the first sealing ring 51 and the second sealing ring 52, which are spaced apart vertically, ensure the integrity of the upper and lower openings of the locking ring 40, preventing misalignment and thus ensuring the overall roundness of the locking ring 40, making the engagement between the locking ring 40 and the connecting member 1 more secure and reliable.
[0068] In this invention, the first occlusal structure 10 and the second occlusal structure 42 engage in a tooth-to-tooth occlusal process.
[0069] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A mechanical connection for a prestressed pile, characterized in that Includes a connector (1), wherein the lower outer wall of the connector (1) is provided with a first interlocking structure (10); The locking assembly (2) includes at least a receiving module (3) and a locking module (4); The accommodating module (3) is provided with a cavity (30), and the locking module (4) is disposed in the cavity (30). The upper surface of the accommodating module (3) is provided with an opening (31) that communicates with the cavity (30). The opening (31) constrains the locking module (4) to remain in the cavity (30). The cavity (30) is provided with a deformation sealing module (5), which includes at least a first sealing ring (51) and a second sealing ring (52) arranged at an upper and lower interval, and a deformation space (9) is formed in the cavity (30) between the first sealing ring (51) and the second sealing ring (52). The locking module (4) includes multiple locking elements (41), which are arranged in a ring and enclose a locking ring (40). The inner wall of the locking element (41) is provided with a second engagement structure (42). The first engagement structure (10) engages with the second engagement structure (42) to constrain the connector (1) to remain within the locking ring (40). The first sealing ring (51) and the second sealing ring (52) are both in contact with the outer wall of the locking ring (40), and the first sealing ring (51) and the second sealing ring (52) are both in contact with the cavity wall of the cavity (30); When the connector (1) is inserted into the locking ring (40) from top to bottom through the opening (31), the locking element (41) can be forced to squeeze the first sealing ring (51) and the second sealing ring (52) so that the locking element (41) moves toward the deformation space (9).
2. A mechanical connector for a prestressed pile according to claim 1, characterised in that The accommodating module (3) includes an accommodating shell (34), an anti-detachment seat (33) is provided inside the accommodating shell (34), and the opening (31) is provided on the anti-detachment seat (33); the cavity (30) is located inside the accommodating shell (34) below the anti-detachment seat (33).
3. A mechanical connector for a prestressed pile according to claim 2, characterised in that The first sealing ring (51) is disposed between the anti-detachment seat (33) and the locking ring (40); the second sealing ring (52) is disposed between the accommodating shell (34) and the locking ring (40).
4. A mechanical connector for prestressed piles according to any one of claims 1 to 3, characterized in that, The first sealing ring (51) is disposed inside the opening (31).
5. A mechanical connector for prestressed piles according to any one of claims 1 to 3, characterized in that, The upper inner wall of the locking element (41) is provided with a first chamfer (44); the lower part of the connector (1) is provided with a tapered mating part (11).
6. A mechanical connector for a prestressed pile according to claim 2, characterised in that The accommodating module (3) also includes a dustproof housing (7), and the accommodating housing (34) is disposed inside the dustproof housing (7).
7. A mechanical connector for a prestressed pile according to claim 6, characterised in that The dustproof housing (7) is provided with a limiting step (71); the outer wall of the accommodating housing (34) abuts against the limiting step (71) to constrain the accommodating housing (34) to move downward relative to the dustproof housing (7).
8. A mechanical connector for a prestressed pile according to any one of claims 1 to 3, characterised in that, The first occlusal structure (10) and the second occlusal structure (42) occlude with teeth biting each other.