Prestressed pile mechanical connecting piece

Abstract

The prestressed pile mechanical connecting piece comprises a connecting piece body, and a first meshing structure is arranged on the outer wall of the connecting piece body; the locking assembly comprises a containing module and a locking module; a containing cavity is formed in the containing module, the locking module is arranged in the containing cavity, and the containing module is provided with an opening communicating with the containing cavity; a deformation sealing module is arranged in the containing cavity, the deformation sealing module comprises a first sealing ring and a second sealing ring, and a deformation space is formed in the containing cavity; the locking module comprises a plurality of locking elements, the multiple locking elements are annularly arranged and define a locking ring, the locking elements are provided with second meshing structures, and the first meshing structures and the second meshing structures are meshed to restrain the connecting pieces to be kept in the locking ring; the first sealing ring and the second sealing ring are both attached to the outer wall of the locking ring, and the first sealing ring and the second sealing ring are both attached to the cavity wall of the containing cavity. When the connecting piece is inserted into the locking ring, the locking element can be forced to extrude the first sealing ring and the second sealing ring, so that the locking element moves towards the deformation space.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical connectors, and in particular to a prestressed pile mechanical connector. Background Art

[0002] In the existing prestressed connector, when the connector and the locking member are connected, the locking member can be expanded under the support of the conical screw head after the conical screw head is pressed into the locking member. This means that when the conical screw head is pressed down to be plugged into the locking member, the conical screw head will squeeze the locking member as it is plugged in, so that the assembled multiple locking units move outwards respectively, and then the conical screw head can be pressed into the locking member.

[0003] However, when the conical screw head and the locking member are plugged together, the multiple locking units need to move outwards respectively, which means that the entire locking member has space to move outwards in the connecting component.

[0004] Based on the above, the technical problem existing in the prior art is that the locking piece is movably arranged in the connecting component, but there is no accessory that can be used to constrain the position of the locking piece, resulting in that when the connecting component and the locking component are plugged together, the locking piece is easily moved and does not maintain the plug-in position, causing the connecting component and the locking component to be unable to be plug-in connected.

[0005] At the same time, since the locking unit needs to move inside the connecting part to achieve the plug-in locking, it means that there is a movable space between the locking unit and the inner wall of the connecting part, and there is no structure to seal the space. Moreover, this technology is applied in the field of mechanical connection, especially when used in outdoor construction sites, it is easy for particles to enter. When particles are located in the movable space, the locking unit will be unable to move, causing the entire connection to be scrapped, and even the entire prestressed pile to be unusable. Summary of the invention

[0006] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a prestressed pile mechanical connector.

[0007] A prestressed pile mechanical connector designed for this purpose comprises a connector, wherein the lower outer wall of the connector is provided with a first engaging structure;

[0008] A locking assembly, the locking assembly at least comprising a receiving module and a locking module;

[0009] A cavity is provided in the receiving module, the locking module is provided in the cavity, and an opening communicating with the cavity is provided on the upper surface of the receiving module; the opening constrains the locking module to remain in the cavity;

[0010] A deformable sealing module is arranged in the cavity, and the deformable sealing module at least comprises a first sealing ring and a second sealing ring arranged with an interval up and down, and a deformable space is formed in the cavity between the first sealing ring and the second sealing ring;

[0011] The locking module comprises a plurality of locking elements, which are arranged in an annular shape and enclosed to form a locking ring, and the inner wall of the locking element is provided with a second biting structure, and the first biting structure is biting with the second biting structure to constrain the connecting member to remain in the locking ring;

[0012] The first sealing ring and the second sealing ring are both in contact with the outer wall of the locking ring, and the first sealing ring and the second sealing ring are both in contact with the cavity wall of the cavity;

[0013] When the connecting piece is inserted into the locking ring from top to bottom through the opening, the locking element can be forced 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 comprises an accommodating shell, an anti-detachment seat is arranged in the accommodating shell, and the opening is arranged on the anti-detachment seat; the accommodating cavity is located in the accommodating shell below the anti-detachment seat.

[0015] Preferably, the first sealing ring is arranged between the anti-drop seat and the locking ring; the second sealing ring is arranged between the accommodating shell and the locking ring.

[0016] Preferably, the first sealing ring is arranged in the opening.

[0017] Preferably, the upper inner wall of the locking element is provided with a first chamfered angle; and the lower portion of the connecting piece is provided with a conical docking portion.

[0018] Preferably, the locking ring is provided with an annular groove, and a retaining spring is provided in the annular groove.

[0019] Preferably, the accommodating module further comprises a dustproof casing, and the accommodating casing is arranged inside the dustproof casing.

[0020] Preferably, the dustproof housing is provided with a limiting step; the outer wall of the accommodating housing abuts against the limiting step to restrict the accommodating 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 sequence from top to bottom.

[0022] Preferably, the first engaging structure and the second engaging structure engage with each other in the form of teeth engaging with each other.

[0023] Compared with the prior art, the present invention has a deformable sealing module in the cavity, which at least includes a first sealing ring and a second sealing ring spaced apart from each other, and a deformable 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 sealing ring and the second sealing ring arranged at intervals above and below can keep the multiple locking elements arranged in an annular shape, so as to avoid the locking elements being misaligned and unable to be plugged and locked with the connecting piece.

[0025] The first sealing ring and the second sealing ring arranged at intervals up and down can keep the locking ring composed of multiple locking elements in a preset insertion position, avoiding the locking ring from being randomly displaced due to the deformation space, causing the locking ring to be offset and affecting the connection with the connecting piece.

[0026] At the same time, under the action of the first sealing ring, it can isolate external pollutants: prevent dust, impurities and other external pollutants from entering the cavity, protect precision parts from pollution or corrosion. At the same time, it can prevent particles from entering the deformation space, so as to prevent foreign matter from affecting the movement of the locking element and causing the inability to lock. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional structural schematic diagram of a mechanical connector;

[0028] Figure 2 It is a schematic diagram of the cross-sectional structure of a mechanical connector;

[0029] Figure 3 It is a schematic diagram of the exploded structure of the mechanical connector;

[0030] Figure 4 It is a schematic diagram of the assembly of the locking module and the deformation sealing module;

[0031] Figure 5 It is an exploded schematic diagram of the locking module and the deformation sealing module;

[0032] Figure 6 It is a schematic diagram of the cross-sectional structure of the locking module;

[0033] Figure 7 A schematic diagram of the plug-in connection between the locking module and the connector;

[0034] Figure 8 It is a schematic diagram of the engagement connection between the locking module and the connecting piece;

[0035] Fig. 9 This is one of the schematic diagrams for the use of mechanical connectors;

[0036] Fig.10 for Fig. 9 The enlarged schematic diagram of point A in the middle;

[0037] Fig.11 This is the second schematic diagram of the use of mechanical connectors;

[0038] Fig.12 for Fig.11The enlarged schematic diagram of point B in the middle;

[0039] Fig.13 This is the third schematic diagram of the use of mechanical connectors;

[0040] Fig.14 This is the fourth schematic diagram of the use of mechanical connectors;

[0041] Fig.15 This is the fifth schematic diagram of the use of mechanical connectors;

[0042] Fig.16 This is the sixth schematic diagram of the use of mechanical connectors. DETAILED DESCRIPTION

[0043] The following detailed description of the implementation of the technical solution of the present application is provided in conjunction with the accompanying drawings. The following implementation is only used to more clearly illustrate the technical solution of the present application, and is therefore only used as an example, and cannot be used to limit the scope of protection of the present application.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific implementation methods and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0045] In the description of the implementation methods of the present application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity, specific order or primary and secondary relationship of the indicated technical features.

[0046] Reference to "embodiment" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0047] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0048] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0049] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0050] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0051] See also Figure 1-Figure 16 A prestressed pile mechanical connector, comprising a connector 1, wherein the lower outer wall of the connector 1 is provided with a first bite structure 10; a locking assembly 2, wherein the locking assembly 2 at least comprises a receiving module 3 and a locking module 4; a receiving cavity 30 is provided in the receiving module 3, wherein the locking module 4 is provided in the receiving cavity 30, and an opening 31 which is interconnected with the receiving cavity 30 is provided on the upper surface of the receiving module 3; the opening 31 constrains the locking module 4 to remain in the receiving cavity 30; a deformation sealing module 5 is provided in the receiving cavity 30, wherein the deformation sealing module 5 at least comprises a first sealing ring 51 and a second sealing ring 52 which are arranged at intervals in the upper and lower parts, and a deformation space is formed in the receiving cavity 30 between the first sealing ring 51 and the second sealing ring 52 9; the locking module 4 includes a plurality of locking elements 41, which are arranged in a ring shape and enclosed to form a locking ring 40, and a second bite structure 42 is arranged on the inner wall of the locking element 41, and the first bite structure 10 bites with the second bite structure 42 to constrain the connector 1 to remain 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 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.

[0052] The principle of using mechanical connectors, see Figures 9 to 12 , the connector 1 is used to be connected 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 is provided with a socket 821 corresponding to the opening 31, and the diameter of the socket 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 up and down, the connector 1 passes through the socket 821 and the opening 31 from top to bottom, and then is inserted into the locking ring 40 for bite connection. 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 drive the multiple locking elements 41 to move toward the connector 1 to tighten the connector 1. When the multiple locking elements 41 are squeezed by the connecting member 1 and move toward the deformation space 9, the locking elements 41 gradually move downward and outward.

[0053] In the present invention, the deformation sealing module 5 plays at least three roles:

[0054] 1. The deformation sealing module 5 plays a sealing role, preventing foreign matter and liquid from entering the cavity 30, ensuring that the deformation space 9 is not blocked by foreign matter, ensuring the normal movement of the locking element 41 to achieve the plug-in lock, and preventing liquid from penetrating into the seal. (For example, water: causes rust and slowly destroys the mechanical properties of the parts, resulting in unqualified pipe pile foundations and the overall building safety is not guaranteed; cement slurry: causes the interior to solidify into one, the screw cannot be screwed in or screwed out of place, and serious quality accidents such as pile breakage and falling off occur during pile construction.)

[0055] 2. The deformation sealing module 5 plays a restraining role, so that the locking ring 40 composed of multiple locking elements 41 is kept in a preset position, preventing it from moving randomly and causing the locking ring 40 to be misplaced / eccentric, which causes the connector 1 to be unable to align and plug in when plugged in from top to bottom, thereby ensuring the assembly efficiency to a great extent. In the prior art, since the position of the locking member cannot be restrained, it is difficult for the connector to align with the locking member during the hoisting and assembly of the pile. When the position of the locking member is offset, it needs to be corrected, and even a part of it cannot be corrected, resulting in it being unusable.

[0056] 3. The deformable sealing module 5 plays the role of pushing multiple locking elements 41 to clamp the connector 1. In the prior art, the locking unit is only constrained by an elastic metal locking ring, and the restraining force is poor. When multiple locking units are squeezed and stretched open by the connector, the elastic metal locking ring is prone to be unable to drive the multiple locking units to reset synchronously. When the locking unit cannot be reset to clamp the connector, the overall bite has loopholes, and the connection is unstable and easily falls off. The present invention adopts a deformable sealing module 5 to cooperate with multiple locking elements 41. Under the action of the upper and lower first sealing rings and the second sealing ring 52, it can achieve the synchronous push of multiple locking elements 41 to reset and bite synchronously.

[0057] See also Figure 6 The receiving module 3 includes a receiving shell 34, a disengagement prevention seat 33 is arranged in the receiving shell 34, and an opening 31 is arranged on the disengagement prevention seat 33; the receiving cavity 30 is located in the receiving shell 34 below the disengagement prevention seat 33. During assembly, the locking module 4 is assembled into the receiving shell 34, and then the disengagement prevention seat 33 is assembled into the receiving cavity 30 from top to bottom. Under the action of the opening 31, the locking module 4 can be constrained to disengage upward from the opening 31.

[0058] See also Fig.10 In actual application, the upper surface of the accommodating housing 34 and the upper surface of the anti-slip seat 33 are both in contact with the lower surface of the second pile base plate 82 .

[0059] See also Figure 7 The first sealing ring 51 is arranged between the anti-slip seat 33 and the locking ring 40 ; the second sealing ring 52 is arranged between the accommodating shell 34 and the locking ring 40 .

[0060] See also Figure 7 The first sealing ring 51 is arranged in the opening 31 . This structural arrangement is intended to seal from the source to prevent foreign matter and liquid from entering the cavity 30 .

[0061] See also Figure 6 The anti-slip seat 33 is an annular structure, the inner wall of the anti-slip seat 33 below the opening 31 is the avoidance spherical surface 32, and the wall surface of the locking element 41 facing the avoidance spherical surface 32 is the fitting spherical surface 411.

[0062] Furthermore, the opening 31 is in the shape of a circular hole, and the diameter of the opening 31 is smaller than the maximum diameter of the locking ring 40 . This size constraint can constrain the locking module 4 to remain in the cavity 30 .

[0063] See also 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 conical docking portion 11. The conical docking portion 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 also 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 keep the plurality of locking elements 41 in an annular shape to form the locking ring 40.

[0065] See also Fig.10 The accommodation module 3 further includes a dustproof housing 7, and the accommodation housing 34 is disposed in the dustproof housing 7. The dustproof housing 7 has a dustproof function to prevent foreign matter from entering the interior of the accommodation module 3. Further, when the accommodation module 3 is connected to the second pile base plate 82, the dustproof housing 7 is welded and fixed to the second pile base plate 82, and a sealant is applied at the welding position.

[0066] See also Figure 2 The dustproof housing 7 is provided with a limiting step 71; the outer wall of the housing 34 abuts against the limiting step 71 to restrict the housing 34 from moving downward relative to the dustproof housing 7. When the housing module 3 is connected to the second pile base plate 82, the upper surface of the housing 34 fits with the second pile base plate 82, so that the housing 34 cannot move up and down relative to the housing 34 under the restraining effect of the second pile base plate 82 and the limiting step 71.

[0067] In the present invention, the first sealing ring 51, the retaining ring 6 and the second sealing ring 52 are arranged in order from top to bottom. The retaining ring 6 in the middle ensures that the shape of the locking ring 40 is not misaligned; and the first sealing ring 51 and the second sealing ring 52 arranged at intervals above and below can ensure the integrity of the upper and lower openings of the locking ring 40, so that they will not be misaligned, thereby ensuring the overall roundness of the locking ring 40, making the engagement of the locking ring 40 with the connecting member 1 more firm and reliable.

[0068] In the present invention, the first engaging structure 10 and the second engaging structure 42 engage with each other in the form of teeth engaging with each other.

[0069] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A prestressed pile mechanical connector, characterized in that: It comprises a connecting piece (1), wherein the lower outer wall of the connecting piece (1) is provided with a first engaging structure (10); A locking assembly (2), the locking assembly (2) comprising at least a receiving module (3) and a locking module (4); The containing module (3) is provided with a containing cavity (30), the locking module (4) is arranged in the containing cavity (30), and the upper surface of the containing module (3) is provided with an opening (31) which is in communication with the containing cavity (30); the opening (31) constrains the locking module (4) to remain in the containing cavity (30); A deformable sealing module (5) is arranged in the cavity (30), and the deformable sealing module (5) comprises at least a first sealing ring (51) and a second sealing ring (52) which are arranged with a vertical spacing, and a deformable space (9) is formed in the cavity (30) between the first sealing ring (51) and the second sealing ring (52); The locking module (4) comprises a plurality of locking elements (41), the plurality of locking elements (41) are arranged in an annular shape and enclose a locking ring (40), the inner wall of the locking element (41) is provided with a second biting structure (42), the first biting structure (10) and the second biting structure (42) are bitingly engaged to constrain the connecting member (1) to remain 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 first sealing ring (51) and the second sealing ring (52) are both in contact with the cavity wall of the cavity (30); When the connecting piece (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 prestressed pile mechanical connector according to claim 1, characterized in that: The accommodating module (3) comprises an accommodating shell (34), an anti-detachment seat (33) is arranged in the accommodating shell (34), and the opening (31) is arranged on the anti-detachment seat (33); the accommodating cavity (30) is located in the accommodating shell (34) below the anti-detachment seat (33).

3. A prestressed pile mechanical connector according to claim 2, characterized in that: The first sealing ring (51) is arranged between the anti-slip seat (33) and the locking ring (40); and the second sealing ring (52) is arranged between the accommodating shell (34) and the locking ring (40).

4. A prestressed pile mechanical connector according to any one of claims 1 to 3, characterized in that: The first sealing ring (51) is arranged in the opening (31).

5. A prestressed pile mechanical connector 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); and the lower part of the connecting piece (1) is provided with a conical docking portion (11).

6. A prestressed pile mechanical connector according to any one of claims 1 to 3, characterized in that: The locking ring (40) is provided with an annular groove (43), and a retaining spring (6) is provided in the annular groove (43).

7. A prestressed pile mechanical connector according to claim 2, characterized in that: The accommodating module (3) further comprises a dustproof housing (7), and the accommodating housing (34) is arranged inside the dustproof housing (7).

8. A prestressed pile mechanical connector according to claim 7, characterized 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 restrict the accommodating housing (34) from moving downward relative to the dustproof housing (7).

9. A prestressed pile mechanical connector according to claim 6, characterized in that: The first sealing ring (51), the retaining ring (6) and the second sealing ring (52) are arranged in sequence from top to bottom.

10. A prestressed pile mechanical connector according to any one of claims 1 to 3, characterized in that: The first biting structure (10) and the second biting structure (42) are bitten into each other by teeth.

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