CN219975087U

CN219975087U - Reverse bolting device

Info

Publication number: CN219975087U
Application number: CN202321726309.XU
Authority: CN
Inventors: 刘可可; 顾民华; 阮婵娟; 程琛
Original assignee: Shanghai Zhenghua Heavy Industries Co Ltd
Current assignee: Shanghai Zhenghua Heavy Industries Co Ltd
Priority date: 2023-07-04
Filing date: 2023-07-04
Publication date: 2023-11-07
Anticipated expiration: 2033-07-04

Abstract

The utility model discloses a reverse bolting device, which comprises a screw rod assembly, a fastening assembly and a reverse stop block; the fastening component is sleeved on the screw component; an open slot is formed in the front end face of the screw rod assembly, and a stop slope is arranged at the bottom of the open slot; the reverse stop block is arranged in the open slot through a rotating pin shaft; one end of the reverse stop block is provided with a slope angle, and the slope angle is matched with the stop slope. The utility model changes the unfavorable condition of the existing construction, can conveniently and quickly fix the upper part of the electrical cabinet, and achieves the aims of preventing toppling, saving cost, reducing potential safety hazard and improving product quality.

Description

Reverse bolting device

Technical Field

The present utility model relates to the field of heavy machinery industry tool fittings, and more particularly to a reverse bolting apparatus.

Background

In the installation of large-scale electromechanical project electrical appliances, the underframe of the large-scale electrical cabinet needs to be reliably fixed, and since the current harbor machine products generally need to reach the wharf of the other party through sea transportation, the upper parts of electrical equipment with the height of more than 1.5 meters need to be reliably fixed for preventing toppling. At present, the existing mode is to add a welded steel plate on a column of a main structure, a sandwich plate is arranged between an electric appliance cabinet and the column, at the moment, drilling and tapping are needed to be carried out from the side of the electric appliance cabinet to a pre-welded steel plate through a mark which is made in advance, then a row of angle steels are arranged on the sandwich plate at the side of the electric appliance cabinet, and then the angle steels are fixed to the electric appliance cabinet through a customized bracket, so that the operation can cause the rise of materials and construction difficulty, and the requirement on manufacturing precision of the bracket is very high. And because most of the space between the sandwich board and the enclosure structural board is a closed body and is extremely small, the sandwich board cannot be directly fixed on the sandwich board by bolts from the outside for installation.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims to provide a reverse bolting device, which changes the unfavorable condition of the prior construction, can conveniently and rapidly fix the upper part of an electrical cabinet, and achieves the aims of preventing toppling, saving cost, reducing potential safety hazard and improving product quality.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a reverse bolting device comprising a screw assembly, a fastening assembly and a reverse stop block;

the fastening component is sleeved on the screw component;

an open slot is formed in the front end face of the screw rod assembly, and a stop slope is arranged at the bottom of the open slot;

the reverse stop block is arranged in the open slot through a rotating pin shaft;

one end of the reverse stop block is provided with a slope angle, and the slope angle is matched with the stop slope.

Preferably, the screw rod component is made of round steel;

the rear end surface of the screw assembly is provided with threads.

Preferably, the side wall of the opening groove and the middle position of the reverse stop block are respectively provided with a rotating pin shaft hole for assembling the rotating pin shaft.

Preferably, the reverse stop block is a cuboid steel plate;

the rotating pin shaft hole on the reverse stop block is positioned at the center of the cuboid steel plate.

Preferably, the fastening assembly comprises a washer and a nut screwed on the thread of the screw assembly.

Preferably, a direction mark is arranged on the rear end face of the screw rod assembly.

The reverse bolting device provided by the utility model has the following beneficial effects:

1) The application range is wide: not only the common working condition, but also the special working condition (mainly refers to various closed boxes or semi-closed boxes, areas with narrow space, areas which cannot be operated or are inconvenient for other people, and the like) can be used;

2) The working efficiency can be improved: when two areas of the partition are required to be fastened (or detached) by a wearing way, a single person can easily operate, and the original method needs two or more persons to operate and takes longer time;

3) Can be repeatedly utilized: the reverse bolting device can be easily taken out and reused if the reverse bolting device needs to be modified or cancelled after being used.

Drawings

FIG. 1 is a schematic view of the reverse bolting apparatus of the present utility model;

FIG. 2 is a schematic view, (a) in an axial view and (b) in a cross-sectional view of a screw assembly of the reverse bolting device of the utility model;

FIG. 3 is a schematic view of a reverse stop block in the reverse bolting device of the utility model;

FIG. 4 is a schematic view of a fastening assembly of the reverse bolting device of the utility model, (a) being a washer and (b) being a nut;

FIG. 5 is a schematic view of an assembly step S1 of the reverse bolting device according to the utility model;

FIG. 6 is a schematic view of an assembly step S2 of the reverse bolting device according to the utility model;

FIG. 7 is a schematic view of an assembly step S3 of the reverse bolting device according to the utility model;

FIG. 8 is a schematic diagram of a method step S1 of using the reverse bolting device of the present utility model;

FIG. 9 is a schematic diagram of a method step S2 of using the reverse bolting device of the utility model;

FIG. 10 is a schematic diagram of the method step S2 of using the reverse bolting device of the present utility model;

FIG. 11 is a schematic diagram of a method step S3 of using the reverse bolting device of the utility model;

FIG. 12 is a schematic diagram of the principle of step S3 of the method of using the reverse bolting device according to the utility model;

FIG. 13 is a schematic diagram of a second principle of step S3 of the method for using the reverse bolting device according to the utility model;

FIG. 14 is a schematic diagram of a method step S4 of using the reverse bolting device of the utility model;

FIG. 15 is a schematic view of the reverse bolting means of the utility model at step S1 of removal;

FIG. 16 is a schematic view of the reverse bolting means of the utility model at step S2;

FIG. 17 is a schematic diagram of the principles of step S2 of removal of the reverse bolting device according to the utility model;

FIG. 18 is a schematic diagram of the reverse bolting means of the utility model in a removal step S2;

fig. 19 is a schematic view of the reverse bolting means of the utility model at step S3.

Detailed Description

In order to better understand the above technical solution of the present utility model, the technical solution of the present utility model is further described below with reference to the accompanying drawings and examples.

Referring to fig. 1 to 4, the present utility model provides a reverse bolting device, which comprises a screw assembly 1, a fastening assembly 4 and a reverse stopper 2.

The screw assembly 1 is made of round steel, threads are machined on the surface of the rear end of the screw assembly, an open slot 11 is machined on the front end face of the screw assembly, a stop slope 12 is machined at the bottom of the open slot 11, rotating pin shaft holes 13 are machined on the side walls of the two sides of the open slot 11, and a direction mark 14 is also machined on the rear end face of the screw assembly 1.

The reverse stop block 2 is processed and manufactured by adopting a cuboid steel plate, one end (short side) of the reverse stop block 2 is set to be a slope angle 21, the slope angle 21 is matched with the stop slope 12, a rotating pin shaft hole 22 is processed in the center of the reverse stop block 2, the reverse stop block 2 is convenient to rotate by utilizing the gravity center subsequently, and the reverse stop block is used for reverse assembly.

The reverse stopper 2 is fitted into the open groove 11 through the pivot pin 3, and the pivot pin 3 penetrates into the pivot pin hole 13 and the pivot pin hole 22. The rotating pin shaft 3 is made of round steel.

The fastening assembly 4 comprises a gasket 41 screwed on the thread of the screw assembly 1 and a nut 42 for bolting in subsequent fixing of the electrical cabinet.

The reverse bolting device comprises the following assembly steps:

s1, installing the reverse stop block 2, namely placing the reverse stop block 2 into the open groove 11, and attaching the inclined slope angle 21 to the stop slope 12, as shown in FIG. 5;

s2, mounting the rotating pin shaft 3, wherein the rotating pin shaft hole 22 of the reverse stop block 2 is coaxial with the rotating pin shaft hole 22 of the opening groove 11, and the rotating pin shaft 3 is inserted into the rotating pin shaft hole 22 and the rotating pin shaft hole 22 from one side, as shown in FIG. 6;

s3, mounting the fastening assembly 4, and screwing the gasket 41 and the nut 42 into the screw thread of the screw assembly 1 in sequence, as shown in fig. 7.

The reverse bolting device of the utility model is assembled in the prior stage: the reverse bolting device of the utility model is prevented from sliding into the closed space during installation.

The application method of the reverse bolting device comprises the following steps:

s1, firstly, selecting an electrical cabinet 100 needing upper fixing, scribing on a sandwich board 101 needing fixing, and drilling a drilling hole 102 with a diameter slightly larger than that of a reverse bolting device of the utility model on the sandwich board 101 by using a hand-held gun drill, as shown in FIG. 8;

s2, one side (the short side of the reverse stop block 2) or the direction mark 14 of the reverse bolting device 200 is upwards, and the gravity and the matching of the inclined slope angle 21 and the stop slope 12 ensure that the reverse bolting device 200 is in a straight line mode. The reverse bolting device 200 of the utility model is placed into the borehole 102 in the direction of the arrow in fig. 9. The washer 41, nut 42 are pre-installed to prevent the reverse bolting device 200 of the utility model from sliding into the borehole 102 during the installation process, as shown in fig. 9;

as shown in fig. 10, since the pivot pin hole 22 of the reverse stopper 2 is located on the center line of the long side, the left center of gravity is at the L1 position, the right center of gravity is at the L2 position, L1 < L2, and the center of gravity G1 > G2 (G1L 1 < G2L 2) with the pivot pin hole 22 as the center. The reverse stop block 2 rotates clockwise, but is in a balanced state due to the blocking of the stop slope 12 on the left side;

s3, after the reverse bolting device 200 is placed in the drilling hole 102, the reverse bolting device is rotated 180 degrees (the short side of the reverse stop block 2) or the direction mark 14 is downward, the reverse stop block 2 is automatically rotated by 90 degrees by utilizing gravity, and any short side of the reverse stop block 2 is downward as shown in FIG. 11;

as shown in fig. 12, since the pivot pin hole 22 of the reverse stopper 2 is located on the center line of the long side, the left center of gravity is at the L1 position, the right center of gravity is at the L2 position, L1 < L2, and the center of gravity G1 > G2 (G1L 1 < G2L 2) with the pivot pin hole 22 as the center. The reverse stopper 2 is rotated clockwise, but is rotated since the left side is not blocked by the stopper slope 12;

as shown in fig. 13, the rotation is stopped when the reverse stopper 2 rotates to approximately 90 °, and at this time, the rotation pin 3 serves as a fulcrum, and the center of gravity G2 > the center of gravity G1, and thus the state is in relative balance;

s4, the reverse bolting device 200 is pulled to the side of the electrical cabinet 100, and the fastening assembly 4 is screwed, at this time, the reverse bolting device 200 is installed, as shown in fig. 14.

The reverse bolting device of the utility model is dismantled as follows:

s1, loosening the fastening assembly 4, and moving the fastening assembly out of the screw assembly 1 (only three teeth are needed to be kept, and the fastening assembly is not detachable) so as to ensure that the reverse stop block 2 has enough moving space, as shown in fig. 15;

s2, the reverse bolting device 200 of the utility model is slowly rotated for 180 degrees (the short side of the reverse stop block 2) or the direction mark 14 is upwards, the reverse stop block 2 is automatically rotated for 90 degrees by gravity, and the reverse stop block is reset 2 into the open groove 11, as shown in fig. 16;

as shown in fig. 17, since the pivot pin hole 22 of the reverse stopper 2 is located on the center line of the short side, the left center of gravity G1 is at the L1 position, the right center of gravity G2 is at the L2 position, L1 < L2, and the center of gravity G1 < G2 (G1L 1 < G2L 2), the reverse stopper 2 rotates clockwise, and after 90 ° rotation, the left side is blocked by the stopper slope 12;

as shown in fig. 18, when the reverse stopper 2 rotates to nearly 90 °, since the stopper slope 12 stops rotating, the pivot shaft 3 serves as a fulcrum, and the center of gravity G2 > the center of gravity G1, this state is in relative balance;

C. the reverse bolting device 200 of the utility model is removed from the borehole 102 to complete the removal.

It will be appreciated by persons skilled in the art that the above embodiments are provided for illustration only and not for limitation of the utility model, and that variations and modifications of the above described embodiments are intended to fall within the scope of the claims of the utility model as long as they fall within the true spirit of the utility model.

Claims

1. A reverse bolting device, characterized in that: comprises a screw rod component, a fastening component and a reverse stop block;

the fastening component is sleeved on the screw component;

2. The reverse bolting device according to claim 1, wherein: the screw rod component is made of round steel;

the rear end surface of the screw assembly is provided with threads.

3. The reverse bolting device according to claim 2, wherein: and the side wall of the opening groove and the middle position of the reverse stop block are respectively provided with a rotating pin shaft hole for assembling the rotating pin shaft.

4. A reverse bolting device according to claim 3, wherein: the reverse stop block is a cuboid steel plate;

5. The reverse bolting device according to claim 2, wherein: the fastening assembly comprises a washer and a nut screwed on the thread of the screw assembly.

6. The reverse bolting device according to claim 2, wherein: the rear end face of the screw rod assembly is provided with a direction mark.