CN220013645U

CN220013645U - Middle nut structure of tubular pile connecting piece

Info

Publication number: CN220013645U
Application number: CN202320935673.0U
Authority: CN
Inventors: 陆剑敏
Original assignee: Haiyan Machinery Equipment Manufacturing Co ltd
Current assignee: Haiyan Machinery Equipment Manufacturing Co ltd
Priority date: 2023-04-19
Filing date: 2023-04-19
Publication date: 2023-11-14
Anticipated expiration: 2033-04-19

Abstract

The utility model provides a middle nut structure of a tubular pile connecting piece, which comprises a nut body, wherein the outer wall of the nut body is provided with an external thread, a central cavity is formed in the nut body, one end of the central cavity is provided with a limiting surface, the other end of the central cavity is provided with a driving structure, a plurality of tooth grooves are arranged on the driving structure at intervals, clamping teeth are formed between two adjacent tooth grooves, and the upper end face of each clamping tooth is provided with a leading-in inclined plane. The intermediate nut can be matched with a plurality of different types of operating tools at the same time, so that the possibility that a user cannot find the operating tool matched with the intermediate nut when screwing the bolt is greatly reduced.

Description

Middle nut structure of tubular pile connecting piece

[ field of technology ]

The utility model relates to the technical field of constructional engineering, in particular to a middle nut structure of a tubular pile connecting piece.

[ background Art ]

In the use process of the tubular pile, the tubular pile with different lengths is required to be selected according to different use requirements, and the tubular pile are connected with each other to form a pile body with a longer length. At present, end plates are arranged at two ends of an existing pipe pile, and two or more sections of pipe piles are connected by adopting pipe pile connecting pieces between the pipe piles.

The existing tubular pile connecting piece comprises an upper nut provided with an inserted link and a lower nut provided with a clamping sleeve assembly, wherein the clamping sleeve assembly is generally installed in a cavity of the lower nut, and the clamping sleeve assembly is limited in the cavity by adopting an intermediate nut as a limiting piece, wherein the intermediate nut needs to be assembled with the lower nut. The existing middle nut is single in structure, for example, the utility model patent with the application number of CN202210207437.7 is characterized in that the middle nut adopts a structure that an inner hexagonal cavity is arranged at the end part of the middle nut, and the middle nut can be assembled only by adopting an inner hexagonal wrench matched with the middle nut.

[ utility model ]

The utility model aims to solve the problems in the prior art, and provides a middle nut structure of a tubular pile connecting piece, which can be matched with various operation tools for use and brings convenience for assembling the middle nut.

In order to achieve the above purpose, the utility model provides an intermediate nut structure of a tubular pile connecting piece, which comprises a nut body, wherein the outer wall of the nut body is provided with an external thread, a central cavity is arranged in the nut body, one end of the central cavity is provided with a limiting surface, the other end of the central cavity is provided with a driving structure, a plurality of tooth grooves are arranged on the driving structure at intervals, a latch is formed between two adjacent tooth grooves, and the upper end surface of the latch is provided with a leading-in inclined plane.

Preferably, a plurality of cutting grooves are formed at one end of the nut body with the driving structure.

Preferably, the number of the slots is two, and the slots are symmetrically arranged in a straight shape along the radial direction of the nut body.

Preferably, the number of the slots is four, and the slots are symmetrically distributed in a cross shape along the radial direction of the nut body.

Preferably, the cross-sectional shape of the tooth slot is triangular.

Preferably, the cross-sectional shape of the latch is triangular.

Preferably, an inner ring of one end of the nut body, which is opposite to the limiting surface, is provided with a first conical surface, and an outer ring is provided with a second conical surface.

The utility model has the beneficial effects that: according to the utility model, through the structure that the plurality of tooth grooves and the clamping teeth are arranged on the driving structure, the utility model is applicable to an internal hexagonal wrench, a screwdriver (a straight-line mouth screwdriver, a cross mouth screwdriver) and the like, so that the intermediate nut can be matched with a plurality of different types of operating tools at the same time, and the possibility that a user cannot find the operating tool matched with the intermediate nut when screwing is greatly reduced.

The features and advantages of the present utility model will be described in detail by way of example with reference to the accompanying drawings.

[ description of the drawings ]

FIG. 1 is a schematic top view of embodiment 1 of the present utility model;

FIG. 2 is a schematic cross-sectional structure of embodiment 1 of the present utility model;

FIG. 3 is a schematic top view of embodiment 2 of the present utility model;

FIG. 4 is a schematic cross-sectional structure of embodiment 2 of the present utility model;

FIG. 5 is a schematic top view of embodiment 3 of the present utility model;

fig. 6 is a schematic cross-sectional structure of embodiment 3 in the present utility model.

[ detailed description ] of the utility model

Example 1

Referring to fig. 1 to 2, the middle nut structure of the pipe pile connecting piece of the utility model comprises a nut body 1, wherein an external thread 11 is arranged on the outer wall of the nut body 1, a central cavity 10 is arranged in the nut body, a limiting surface 101 for plugging a clamping sleeve assembly is arranged at one end of the central cavity 10, a driving structure 2 is arranged at the other end of the central cavity 10, a plurality of tooth grooves 21 are arranged on the driving structure 2 at intervals, a latch 22 is formed between two adjacent tooth grooves 21, and an upper end surface of the latch 22 is provided with an introducing inclined plane 221 so as to facilitate the introduction of a locking expansion head end of a plunger rod.

Further, in this embodiment, the cross-sectional shape of the tooth slot 21 is triangular, and the number is 12. The cross-section of the latch 22 is triangular, and the number is 12.

Further, in this embodiment, the inner ring of the end of the nut body 1 facing away from the limiting surface 101 has a first tapered surface 102, so as to facilitate the introduction of the locking expansion head end of the plunger rod, and the outer ring has a second tapered surface 103.

Further, in this embodiment, the limiting surface 101 is a conical limiting surface, and may be adapted to an outer conical surface of the end portion of the ferrule assembly.

Example 2

Referring to fig. 2 and 3, a plurality of slots 3 are formed at one end of the nut body 1 having the driving structure 2. In this embodiment, two slots 3 are provided, and the slots 3 penetrate through the nut body 1 and are symmetrically arranged in a straight shape along the radial direction of the nut body 1.

Example 3

Referring to fig. 4 and 5, a plurality of slots 3 are formed at one end of the nut body 1 having the driving structure 2. In this embodiment, the number of the slots 3 is four, and the slots 3 penetrate through the nut body 1 and are symmetrically arranged in a cross shape along the radial direction of the nut body 1.

Example 4

In this embodiment, three slots 3 are equally spaced at one end of the nut body 1 having the driving structure 2.

The above embodiments are illustrative of the present utility model, and not limiting, and any simple modifications of the present utility model fall within the scope of the present utility model.

Claims

1. The utility model provides a middle nut structure of tubular pile connecting piece, includes nut body (1), the outer wall of nut body (1) has external screw thread (11), inside has central chamber (10), its characterized in that: one end of the central cavity (10) is provided with a limiting surface (101), the other end of the central cavity (10) is provided with a driving structure (2), a plurality of tooth grooves (21) are arranged on the driving structure (2) at intervals, a latch (22) is formed between two adjacent tooth grooves (21), and the upper end surface of the latch (22) is provided with a leading-in inclined surface (221).

2. A middle nut structure of a tubular pile connector according to claim 1, wherein: one end of the nut body (1) with the driving structure (2) is provided with a plurality of cutting grooves (3).

3. A middle nut structure of a tubular pile connector according to claim 2, wherein: the number of the cutting grooves (3) is two, and the cutting grooves are symmetrically distributed in a straight shape along the radial direction of the nut body (1).

4. A middle nut structure of a tubular pile connector according to claim 2, wherein: the number of the slots (3) is four, and the slots are symmetrically distributed in a cross shape along the radial direction of the nut body (1).

5. A middle nut structure of a tubular pile connector according to claim 1, wherein: the cross section of the tooth groove (21) is triangular.

6. A middle nut structure of a tubular pile connector according to claim 1, wherein: the cross section of the latch (22) is triangular.

7. A middle nut structure of a tubular pile connector according to claim 1, wherein: an inner ring at one end of the nut body (1) back to the limiting surface (101) is provided with a first conical surface (102), and an outer ring is provided with a second conical surface (103).