Cone lock type pile body mechanical connection structure

Abstract

The utility model relates to the technical field of pile body connection, in particular to a cone lock type pile body mechanical connection structure which comprises an upper sleeve, a lower sleeve and an insertion rod, the upper sleeve is fixedly connected with one end of the insertion rod, annular first hook teeth are arranged on the insertion rod outside the upper sleeve, a spring is arranged in the lower sleeve, a clamping sleeve is arranged on the spring, and the clamping sleeve is fixedly connected with the upper sleeve. The inner wall of the clamping sleeve is provided with annular second hook teeth connected with the first hook teeth in a matched mode, a middle sleeve is fixed in the upper end of the lower sleeve, and the lower end of the inserting rod penetrates through the middle sleeve to be connected with the clamping sleeve in a matched mode. In the pile body pouring process, the upper sleeve and the lower sleeve are connected with the corresponding prestressed steel bars respectively and poured at the ends of the pile bodies, the pile bodies can be in butt joint only through insertion, the insertion rod is inserted into the middle sleeve, then the clamping sleeve is pressed into the insertion rod through the spring, the clamping sleeve and the insertion rod are connected in a matched mode, and therefore the insertion rod is limited in the middle sleeve; connection of the two pile bodies is achieved, connection strength is high, connection is simple and convenient, and efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of pile connection, in particular to a cone-locking pile mechanical connection structure. Background Art

[0002] Currently, cement piles are typically connected by casting metal end plates at the ends of the piles. These plates are then welded together to form a butt joint. This type of connection requires welding during on-site construction, which places high demands on the construction site and affects construction efficiency. Utility Model Content

[0003] In order to solve the above technical deficiencies, the utility model provides a cone-locking pile mechanical connection structure, which can realize the plug-in connection between piles, effectively ensure the connection strength, and is simple, convenient and efficient to construct.

[0004] The utility model discloses a cone-lock type pile mechanical connection structure, comprising an upper sleeve, a lower sleeve and an insertion rod, the upper sleeve is fixedly connected to one end of the insertion rod, the other end of the insertion rod is located outside the upper sleeve, an annular first hook tooth is provided on the insertion rod outside the upper sleeve, a spring is provided inside the lower sleeve, a clamping sleeve is provided on the spring, an annular second hook tooth is provided on the inner wall of the clamping sleeve which is connected to the first hook tooth, an intermediate sleeve is fixed inside the upper end of the lower sleeve, the lower end of the insertion rod passes through the intermediate sleeve and is connected to the clamping sleeve, and the inner diameter of the intermediate sleeve is smaller than the outer diameter of the clamping sleeve.

[0005] A through hole is provided at the upper end of the upper sleeve, and a through hole is provided at the lower end of the lower sleeve. The through holes are used for inserting the prestressed steel bars in the corresponding end pile bodies.

[0006] A spring sleeve is provided at the lower end of the lower sleeve, the bottom end of the spring sleeve forms a support ring, the spring is provided in the spring sleeve, and there is a gap between the bottom end of the spring sleeve and the bottom of the lower sleeve.

[0007] The lower end of the intermediate sleeve is an opening structure with a gradually increasing diameter, and the upper end of the ferrule is a frustum structure with a gradually decreasing outer diameter. The inclined surface of the opening structure of the intermediate sleeve is consistent with the inclined surface of the frustum structure of the ferrule.

[0008] The ferrule is provided with a plurality of axial disconnect structures, which extend downward from the upper end of the ferrule. The length of the disconnect structure is less than the axial length of the ferrule. The disconnect structure is used to increase the deformation capacity of the ferrule.

[0009] The utility model provides a cone-locking pile mechanical connection structure. During the process of pouring the pile body, the upper casing and the lower casing are respectively connected to the corresponding prestressed steel bars and poured at the ends of the pile body. When the pile bodies are butted, they only need to be plugged in. After the plug rod is inserted into the middle sleeve, the spring presses the sleeve onto the plug rod and cooperates to connect, thereby restricting the plug rod inside the middle sleeve, realizing the connection of the two pile bodies. The connection has high strength, is simple and convenient, and has high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural diagram of the utility model;

[0011] Figure 2 for Figure 1 A partial enlarged schematic diagram;

[0012] Figure 3 It is a cross-sectional view of the upper sleeve of the utility model;

[0013] Figure 4 It is a cross-sectional view of the lower sleeve of the utility model;

[0014] Figure 5 It is a cross-sectional view of the insertion rod of the utility model;

[0015] Figure 6 It is a cross-sectional view of the intermediate sleeve of the utility model;

[0016] Figure 7 It is a cross-sectional view of the ferrule of the present utility model;

[0017] Figure 8 It is a cross-sectional view of the spring sleeve of the present utility model. DETAILED DESCRIPTION

[0018] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the present invention in combination with the accompanying drawings and preferred embodiments.

[0019] Example 1:

[0020] like Figure 1-8As shown, the utility model discloses a cone-locking pile mechanical connection structure, including an upper sleeve 3, a lower sleeve 4 and a plug rod 5, the upper sleeve 3 is fixedly connected to one end of the plug rod 5, and the other end of the plug rod 5 is located outside the upper sleeve 3, and an annular first hook tooth 11 is provided on the plug rod 5 outside the upper sleeve 3, a spring 8 is provided inside the lower sleeve 4, and a clamping sleeve 7 is provided on the spring 8, and an annular second hook tooth 13 is provided on the inner wall of the clamping sleeve 7 with which the first hook tooth 11 is matched. An intermediate sleeve 6 is fixed inside the upper end of the lower sleeve 4, and the lower end of the plug rod 5 passes through the intermediate sleeve 6 and is matched with the clamping sleeve 7, and the inner diameter of the intermediate sleeve 6 is smaller than the outer diameter of the clamping sleeve 7.

[0021] The upper part of the insert rod 5 is provided with an external thread, and the lower part of the upper sleeve 3 is provided with an internal thread, and the two are fixedly connected by threads. The inner wall of the upper end of the lower sleeve 4 is provided with an internal thread, and the outer wall of the intermediate sleeve 6 is provided with an external thread, and the two are also connected by threads. At the same time, the spring 8 and the clamping sleeve 7 can be restricted inside the lower sleeve 4 by the intermediate sleeve 6. In this way, when the pile body 1 is cast, it is only necessary to connect the end of the upper sleeve 3 with the corresponding prestressed steel bar 2, and the end of the lower sleeve 4 with the corresponding prestressed steel bar 2. In this way, when the pile body 1 is cast, it is only necessary to cast the upper sleeve 3 and the lower sleeve 4 at the end of the pile body 1. When the pile body 1 is subsequently connected, the insert rod 5, the spring 8, the clamping sleeve 7 and the intermediate sleeve 6 can be assembled to avoid damage to the first hook tooth 11 on the insert rod 5 during transportation. Moreover, the insert rod 5, the intermediate sleeve 6, etc. are connected by threads, which is simple and convenient to assemble, is not restricted by the site, and can be carried out at any time.

[0022] During docking, after the lower end of the insertion rod 5 is inserted into the intermediate sleeve 6, the insertion rod 5 is engaged with the clamping sleeve 7, and the spring 8 pushes the clamping sleeve 7 upward as much as possible, so that the clamping sleeve 7 contacts the lower end of the intermediate sleeve 6, thereby keeping the insertion rod 5 taut inside the intermediate sleeve 6, the connection is stable and firm, and the docking is fast and efficient.

[0023] The upper sleeve 3, the lower sleeve 4 and the corresponding prestressed steel bar 2 can be connected in the form of welding or the following connection.

[0024] A through hole 10 is provided at the upper end of the upper sleeve 3 , and a through hole 10 is provided at the lower end of the lower sleeve 4 . The through holes 10 are used to insert the prestressed steel bars 2 in the corresponding end pile body 1 .

[0025] Before actual pouring, the end of the prestressed steel bar 2 can be inserted into the through hole 10 of the upper sleeve 3 or the lower sleeve 4, and the end of the prestressed steel bar 2 can be pierced using a piercing machine to enlarge its size to be larger than the diameter of the through hole 10, thereby connecting the prestressed steel bar 2 with the corresponding upper sleeve 3 and lower sleeve 4, and the connection strength is high.

[0026] A spring sleeve 9 is provided at the lower end of the lower sleeve 4. The bottom end of the spring sleeve 9 forms a support ring 15. The spring 8 is provided in the spring sleeve 9. The end of the spring 8 is against the support ring 15. There is a gap between the bottom end of the spring sleeve 9 and the bottom of the lower sleeve 4. Since there may be interference between the prestressed steel bar 2 behind the pier head and the spring 8, the spring sleeve 9 is used to limit the position of the spring 8. An annular step is provided inside the lower sleeve 4 to limit the position of the spring sleeve 9. The spring sleeve 9 can then be fixed in the lower sleeve 4 using the spring 8 and the intermediate sleeve 6. The configuration of the spring sleeve 9 can make the spring 8 more stable and reliable during the compression and recovery process, so that the connection between the clamping sleeve 7 and the insertion rod 5 is more reliable.

[0027] The lower end of the intermediate sleeve 6 is an opening structure 12 with a gradually increasing diameter, and the upper end of the clamping sleeve 7 is a frustum structure 14 with a gradually decreasing outer diameter. The inclined surface of the opening structure 12 of the intermediate sleeve 6 is consistent with the inclined surface of the frustum structure 14 of the clamping sleeve 7. The lower end of the intermediate sleeve 6 is inclined outward from top to bottom, and the outer wall of the clamping sleeve 7 is also inclined outward from top to bottom. After the two are matched, the inner wall of the lower end of the intermediate sleeve 6 fits in with the outer wall of the clamping sleeve 7. In actual use, after the clamping sleeve 7 is engaged with the lower end of the insertion rod 5, the spring 8 pushes upward to make the clamping sleeve 7 fit in with the intermediate sleeve 6, and the intermediate sleeve 6 applies an inward force to the clamping sleeve 7, making the engagement between the clamping sleeve 7 and the insertion rod 5 more secure and stable.

[0028] The ferrule 7 is provided with a plurality of axial disconnect structures 16 , which extend downward from the upper end of the ferrule 7 . The length of the disconnect structure 16 is less than the axial length of the ferrule 7 . The disconnect structure 16 is used to increase the deformation capacity of the ferrule 7 .

[0029] The design of the disconnect structure 16 allows the sleeve 7 to deform and expand outward when the insertion rod 5 is inserted into the sleeve 7, so that the insertion rod 5 can be smoothly inserted into the sleeve 7 without causing damage to the first hook tooth 11 and the second hook tooth 13. When the first hook tooth 11 and the second hook tooth 13 are relative to each other, the sleeve 7 will return to its original state, so that a tight fit connection is achieved between the sleeve 7 and the insertion rod 5.

[0030] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0031] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to the interaction between two elements. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0032] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0033] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simplified modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A cone-locking pile mechanical connection structure, characterized by: It includes an upper sleeve, a lower sleeve and an insertion rod, the upper sleeve is fixedly connected to one end of the insertion rod, the other end of the insertion rod is located outside the upper sleeve, an annular first hook tooth is provided on the insertion rod outside the upper sleeve, a spring is provided inside the lower sleeve, a clamping sleeve is provided on the spring, an annular second hook tooth is provided on the inner wall of the clamping sleeve that is connected to the first hook tooth, an intermediate sleeve is fixed inside the upper end of the lower sleeve, the lower end of the insertion rod passes through the intermediate sleeve and is connected to the clamping sleeve, and the inner diameter of the intermediate sleeve is smaller than the outer diameter of the clamping sleeve.

2. The cone-lock pile mechanical connection structure according to claim 1, characterized in that: A through hole is provided at the upper end of the upper sleeve, and a through hole is provided at the lower end of the lower sleeve. The through holes are used for inserting the prestressed steel bars in the corresponding end pile bodies.

3. A cone-locking pile mechanical connection structure according to claim 1 or 2, characterized in that: A spring sleeve is provided at the lower end of the lower sleeve, the bottom end of the spring sleeve forms a support ring, the spring is provided in the spring sleeve, and there is a gap between the bottom end of the spring sleeve and the bottom of the lower sleeve.

4. The cone-locking pile mechanical connection structure according to claim 3, characterized in that: The lower end of the intermediate sleeve is an opening structure with a gradually increasing diameter, and the upper end of the ferrule is a frustum structure with a gradually decreasing outer diameter. The inclined surface of the opening structure of the intermediate sleeve is consistent with the inclined surface of the frustum structure of the ferrule.

5. The cone-locking pile mechanical connection structure according to claim 1, characterized in that: The ferrule is provided with a plurality of axial disconnect structures, which extend downward from the upper end of the ferrule. The length of the disconnect structure is less than the axial length of the ferrule. The disconnect structure is used to increase the deformation capacity of the ferrule.

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