Conical concrete precast pile end plate connecting structure

Abstract

The utility model relates to a conical concrete precast pile end plate connecting structure. The conical concrete precast pile end plate connecting structure comprises a threaded cylinder, a clamping shaft and a shell. The shell is connected with the threaded cylinder, the clamping shaft is inserted into the threaded cylinder, and a chute opening is formed in the top of the threaded cylinder; a clamping piece is arranged on the inclined notch, a mounting part is arranged at the top of the clamping piece, a spring is arranged on the mounting part, one end of the spring is connected with the mounting part, and the other end of the spring is connected with the top of the shell. The clamping shaft is inserted into the threaded cylinder through the through hole, the clamping shaft ejects a part of the clamping piece out along the inclined groove opening, so that the clamping piece is separated from the inclined groove opening, the clamping shaft cannot be extruded, at the moment, the clamping shaft cannot be pressed in the process of screwing the clamping shaft into the clamping piece, and when screwing of the clamping shaft is stopped, the clamping piece is ejected back to the original position through thrust of the spring; due to the fact that the left end of the inner wall of the inclined groove opening is small and the right end of the inner wall of the inclined groove opening is large, the clamping piece can be squeezed, pressure borne by the clamping piece is applied to the clamping shaft, the clamping shaft is hooped and fixed, and due to the structure, when the clamping shaft is screwed into the clamping piece, friction force is low, and installation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of connection joints, in particular to a conical concrete prefabricated pile end plate connection structure. Background Art

[0002] Existing products on the market require the use of electric spot welding to connect, and caulking agent needs to be applied to the joints. During installation, a locating pin is needed to locate the center point of the pin hole under the end plate before spot welding. After the spot welding installation, sealant needs to be applied, which is very inconvenient, wastes materials, is costly and is not environmentally friendly.

[0003] In order to solve the above problems, the utility model patent announced as CN214940086U discloses an improved pipe pile end plate anti-pullout pin joint, including a connecting block, a surface sleeve of the connecting block is provided with a limiting elastic strip, a mud-proof cover is provided on the outside of the connecting block, a circular shell is fixedly connected to the bottom of the mud-proof cover, and a connecting pin is provided inside the circular shell. The circular shell in the utility model is specially designed, and an external thread is designed on the surface of the circular shell. This design method can be directly rotated into the pipe pile end plate, and there is no need to use electric spot welding connection like existing products on the market, and there is no need to apply caulking agent at the joints. It is both environmentally friendly and material-saving. In addition, an external plum blossom-shaped protrusion is provided on the top of the anti-mud cover, and the protrusion can be directly connected to the electric drill sleeve, so that it can be installed using an electric drill during installation. Compared with the traditional wrench installation method, the labor intensity of workers is reduced and the installation efficiency can be increased. In the above prior art, in order to prevent the connection pin from falling out of the connection block, when the connection pin is inserted into the connection block, the limit spring bar sleeved on the surface of the connection block tightens the connection block so that the connection pin is tightened in the connection block. However, since the limit spring bar is sleeved on the surface of the connection block, it takes a lot of effort to insert the connection pin into the connection block, which is not conducive to the installation of the connection pin.

[0004] Based on this, the utility model designs a conical concrete precast pile end plate connection structure to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a conical concrete precast pile end plate connection structure to solve the technical problem in the prior art proposed in the above-mentioned background technology that, due to the limiting spring strips being sleeved on the surface of the connecting block, it takes a lot of effort when the connecting pin is inserted into the connecting block, which is not conducive to the installation of the connecting pin.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A conical concrete precast pile end plate connection structure, comprising: a threaded barrel, a clamping shaft and an outer shell; the outer shell is connected to the threaded barrel, the center of the threaded barrel is provided with a through hole, the clamping shaft is inserted into the threaded barrel through the through hole, and the top of the through hole is provided with an oblique groove; a clamping piece is provided on the oblique groove, the top of the clamping piece is provided with a mounting portion, the mounting portion is provided with a spring, one end of the spring is connected to the mounting portion, and the other end of the spring is connected to the top of the outer shell; the clamping shaft comprises a clamping tooth, a connecting column and a threaded column, the connecting column is located between the clamping tooth and the threaded column, and the clamping tooth is engaged and connected with the clamping piece.

[0008] As a preferred solution, the inner wall of the clamp is provided with a bayonet, the bayonet is unidirectionally arranged, and the latch teeth are unidirectionally arranged.

[0009] As a preferred solution, the number of the clamps is three, and the three clamps are combined into a cylinder.

[0010] As a preferred solution, the outer surface of the threaded barrel is provided with external threads, and the external threads are located in the lower half of the outer surface of the threaded barrel.

[0011] As a preferred solution, a gasket is fixedly connected to the bottom of the shell, and the inner wall of the gasket is fixedly connected to the surface of the threaded barrel.

[0012] As a preferred solution, a groove is provided on the connecting column.

[0013] It can be seen from the technical solution provided by the utility model that the utility model provides a conical concrete precast pile end plate connection structure, which has the following beneficial effects:

[0014] 1. One end of the spring is connected to the mounting portion at the top of the card, and the other end of the spring is connected to the inner top of the shell. During the installation of the card shaft, the card shaft is inserted into the threaded barrel through the through hole. The card shaft pushes a portion of the card along the oblique slot to disengage it from the oblique slot without squeezing the card shaft. At this time, the card shaft will not be subjected to pressure during the process of screwing the card shaft into the card. When the screwing of the card shaft is stopped, the thrust of the spring pushes the card back to its original position. Since the inner wall of the oblique slot is smaller on the left end and larger on the right end, the card will be squeezed. The pressure on the card is applied to the card shaft, thereby tightening the card shaft and fixing the card shaft. With this structure, the friction force when the card shaft is screwed into the card is low, and installation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The overall structural diagram of the conical concrete precast pile end plate connection structure provided by the embodiment of the utility model;

[0016] Figure 2A schematic cross-sectional view of the internal structure of a conical concrete precast pile end plate connection structure provided by an embodiment of the utility model;

[0017] Figure 3 A schematic diagram of a clamping shaft structure of a conical concrete precast pile end plate connection structure provided by an embodiment of the utility model;

[0018] Figure 4 A schematic diagram of a threaded barrel structure of a conical concrete precast pile end plate connection structure provided by an embodiment of the utility model;

[0019] Figure 5 A schematic cross-sectional view of the internal structure of a threaded barrel of a conical concrete precast pile end plate connection structure provided by an embodiment of the utility model;

[0020] Figure 6 A schematic diagram of the clamping structure of the conical concrete precast pile end plate connection structure provided in an embodiment of the utility model.

[0021] In the figure: 1, threaded barrel; 11, through hole; 12, oblique slot; 13, external thread; 2, clamping shaft; 21, clamping teeth; 22, connecting column; 23, threaded column; 3, housing; 31, gasket; 4, clamping piece; 41, mounting portion; 42, bayonet; 5, spring; 6, groove. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0024] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 a limitation on the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not 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 invention, "plurality" means two or more, unless otherwise clearly and specifically defined.

[0026] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0027] See also Figures 1 to 6 The embodiment of the present application provides a conical concrete precast pile end plate connection structure, including a threaded barrel 1, a clamping shaft 2 and a shell 3. The shell 3 is connected to the threaded barrel 1, the center of the threaded barrel 1 is provided with a through hole 11, the clamping shaft 2 is inserted into the threaded barrel 1 through the through hole 11, and the top of the through hole 11 is provided with an oblique notch 12; a clamping piece 4 is provided on the oblique notch 12, and a mounting portion 41 is provided on the top of the clamping piece 4, and a spring 5 is provided on the mounting portion 41, one end of the spring 5 is connected to the mounting portion 41, and the other end of the spring 5 is connected to the top of the shell 3; the clamping shaft 2 includes a clamping tooth 21, a connecting column 22 and a threaded column 23, the connecting column 22 is located between the clamping tooth 21 and the threaded column 23, and the clamping tooth 21 is engaged with the clamping piece 4.

[0028] Further, such as Figure 5 and Figure 6 As shown, the clamp 4 is fitted and connected with the oblique slot 12. Therefore, the outer wall shape of the clamp 4 should be adapted to the shape of the oblique slot 12. The inner wall of the oblique slot 12 is smaller on the left and larger on the right (as shown in FIG. Figure 5 As shown, the left end of the inner wall of the inclined slot 12 is the end away from the external thread 13, and the right end of the inner wall of the inclined slot 12 is the end close to the external thread 13). Therefore, the left end of the outer wall of the clamp 4 is small and the right end is large (as shown in FIG. Figure 6 As shown, the left end of the outer wall of the card member 4 is the end away from the mounting portion 41, and the right end of the outer wall of the card member 4 is the end close to the mounting portion 41).

[0029] Working principle and effect: The three clamps 4 are combined into a cylindrical state, and then one end of the clamping tooth 21 of the clamping shaft 2 is inserted into the interior of the threaded tube 1. Since the bayonet 42 and the clamping tooth 21 are designed to be unidirectional, a locking effect can be achieved. Finally, the outer shell 3 and the threaded tube 1 connected thereto are put together on the surface of the clamp 4 to complete the assembly, and then the threaded tube 1 is rotated into the end plate of the pile by rotation, replacing the traditional electric spot welding connection.

[0030] Compared with the prior art, the utility model adopts a spring 5 instead of a limit spring bar, and one end of the spring 5 is connected to the mounting portion 41 at the top of the card member 4, and the other end of the spring 5 is connected to the inner top of the housing 3. During the installation of the card shaft 2, the card shaft 2 is inserted into the threaded tube 1 through the through hole 11, and the card shaft 2 pushes the card member 4 out along the oblique notch 12 for a part, so that it is separated from the oblique notch 12, and the card shaft 2 will not be squeezed. At this time, the card shaft 2 will not be subjected to pressure during the process of being screwed into the card member 4. When the card shaft 2 stops being screwed in, the thrust of the spring 5 pushes the card member 4 back to its original position. Since the inner wall of the oblique notch 12 is small at the left end and large at the right end (such as Figure 5 As shown, the left end is the end away from the external thread 13, and the right end is the end close to the external thread 13), which will be squeezed into the clamping piece. The pressure exerted on the clamping piece is applied to the clamping shaft to tighten the clamping shaft and fix the clamping shaft. With this structure, the friction force when the clamping shaft is screwed into the clamping piece is low, and the installation is convenient.

[0031] In one embodiment, Figure 6 As shown, the inner wall of the clamp 4 is provided with a bayonet 42, the bayonet 42 is unidirectionally arranged, and the latching teeth 21 are unidirectionally arranged. The latching teeth 21 of the clamping shaft 2 are engaged with the bayonet 42 (as shown in FIG. Figure 2 As shown in the figure), the bayonet 42 and the latch tooth 21 are both configured as a one-way setting to prevent the latch tooth 21 from falling out of the bayonet 42.

[0032] In one embodiment, the number of the clamping members 4 is three, and the three clamping members 4 are combined into a cylinder. Three clamping members 4 are provided, and the clamping members 4 are combined into a cylinder, and the clamping shaft 2 is also a cylinder, and the clamping teeth 21 on the clamping shaft 2 and the bayonet 42 on the inner wall of the clamping member 4 are engaged and connected. In order to facilitate the insertion of the clamping shaft 2, the three clamping members 4 are not fixedly connected, and a gap is left, so that the clamping shaft 2 can be easily inserted, so that the clamping teeth 21 can be quickly engaged and connected with the bayonet 42.

[0033] In one embodiment, Figure 4 or Figure 5 As shown, the outer surface of the threaded barrel 1 is provided with an external thread 13, and the external thread 13 is located in the lower half of the outer surface of the threaded barrel 1. This design method can directly rotate the threaded barrel 1 into the pile end plate without the need for electric spot welding connection and the need for applying caulking agent at the joint.

[0034] In one embodiment, Figure 4 or Figure 5 As shown, a gasket 31 is fixedly connected to the bottom of the shell 3, and the inner wall of the gasket 31 is fixedly connected to the surface of the threaded tube 1. By setting the gasket 31, the friction between the shell 3 and the end plate of the pile can be reduced when the shell 3 is rotated, so that the shell 3 can be installed more easily.

[0035] In one embodiment, Figure 3As shown, the connecting column 22 is provided with a groove 6. When the latching teeth 21 on the latching shaft 2 and the latching opening 42 need to be engaged and connected, the connecting column 22 is provided with a groove 6 for easy hand holding.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A conical concrete precast pile end plate connection structure, characterized in that: include: A threaded barrel (1), a clamping shaft (2) and a housing (3); The shell (3) is connected to the threaded barrel (1); a through hole (11) is provided at the center of the threaded barrel (1); the clamping shaft (2) is inserted into the threaded barrel (1) through the through hole (11); and an oblique notch (12) is provided at the top of the through hole (11); A clamp (4) is provided on the oblique slot (12); a mounting portion (41) is provided on the top of the clamp (4); a spring (5) is provided on the mounting portion (41); one end of the spring (5) is connected to the mounting portion (41), and the other end of the spring (5) is connected to the top of the housing (3); The clamping shaft (2) comprises a clamping tooth (21), a connecting column (22) and a threaded column (23); the connecting column (22) is located between the clamping tooth (21) and the threaded column (23); and the clamping tooth (21) is clamped and connected with the clamping member (4).

2. The conical concrete precast pile end plate connection structure according to claim 1, characterized in that: The inner wall of the clamp (4) is provided with a clamping opening (42), the clamping opening (42) is unidirectionally arranged, and the clamping teeth (21) are unidirectionally arranged.

3. The conical concrete precast pile end plate connection structure according to claim 1, characterized in that: The number of the clamping parts (4) is three, and the three clamping parts (4) are combined into a cylinder.

4. The conical concrete precast pile end plate connection structure according to claim 1, characterized in that: The outer surface of the threaded barrel (1) is provided with an external thread (13), and the external thread (13) is located in the lower half of the outer surface of the threaded barrel (1).

5. The conical concrete precast pile end plate connection structure according to claim 1, characterized in that: A gasket (31) is fixedly connected to the bottom of the outer shell (3), and the inner wall of the gasket (31) is fixedly connected to the surface of the threaded barrel (1).

6. The conical concrete precast pile end plate connection structure according to claim 1, characterized in that: The connecting column (22) is provided with a groove (6).

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