CN219639237U

CN219639237U - Backrest screw

Info

Publication number: CN219639237U
Application number: CN202320534441.4U
Authority: CN
Inventors: 陈贤敏
Original assignee: Wenzhou Liangmin Fasteners Co ltd
Current assignee: Wenzhou Liangmin Fasteners Co ltd
Priority date: 2023-03-13
Filing date: 2023-03-13
Publication date: 2023-09-05
Anticipated expiration: 2033-03-13

Abstract

The utility model relates to a backrest screw, which comprises a fixed block, wherein the bottom of the fixed block is fixedly connected with a fixed column, the bottom end of the fixed column is fixedly connected with a threaded column, a hollow groove is formed in the fixed block, a first sliding groove is formed in the inner side wall of the hollow groove, a fixed rod is fixedly connected with the inner bottom wall of the first sliding groove, a connecting block is slidably connected with the outer wall of the fixed rod, and a hydraulic cylinder is fixedly connected with the inner top wall of the hollow groove. According to the utility model, the screws are conveniently installed and fixed to prevent water from entering and rusting, so that the service life of the device is prolonged, the property loss of people is reduced, the use rapidity of the device is improved, the operation of the device is facilitated, the water entering corrosion of people on the installation and fixation of the screws is avoided, the screws are required to be replaced regularly, the use stability of the device is reduced, the use of the device is inconvenient, and the service life of the device is reduced.

Description

Backrest screw

Technical Field

The utility model relates to the technical field of back screws, in particular to a back screw.

Background

The back pin screw is also known as a super bolt, a high strength bolt, which is pre-tightened with a single turn of the bolt itself, both of which typically have a hard pad. With the rapid development of the modern industry, large and ultra-large mechanical rings are emerging. People in the prior art are to the screw corrosion of intaking after installing fixedly, need people to replace the screw regularly for reduce the stability in use of device, be inconvenient for use the device, reduce the life of device simultaneously, for this reason we need to provide a back screw urgently.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide a backrest screw which is convenient to install and fix the screw and prevents water from rusting.

In order to achieve the above purpose, the utility model provides the following technical scheme, namely a back screw, which adopts the following technical scheme: including the fixed block, the bottom fixedly connected with fixed column of fixed block, the bottom fixedly connected with screw thread post of fixed column, the empty slot has been seted up to the inside of fixed block, first spout has been seted up to the inside wall in empty slot.

The inner bottom wall of the first chute is fixedly connected with a fixed rod, the outer wall of the fixed rod is connected with a connecting block in a sliding way, the inner top wall of the hollow groove is fixedly connected with a hydraulic cylinder, the output end of the hydraulic cylinder is fixedly connected with a connecting plate, the bottom of the connecting plate is fixedly connected with a sealing ring, so that screws are conveniently installed and fixed to prevent water from rusting, the service life of the device is prolonged, simultaneously reduce people's loss of property for improve the use swiftly of device, thereby be convenient for people operate the device, avoid people to install fixedly to the screw and advance the water corrosion, need people regularly replace the screw, make the stability in use of reduction device, be inconvenient for use the device, reduce the life of device simultaneously.

As the preferred scheme, the shape size of connecting block and the shape size of first spout are all mutually matched, the bottom fixedly connected with extension spring of connecting block is convenient for the connecting block to carry out stable slip.

As the preferable scheme, for closely laminating between connecting block and the connecting plate, the diameter of sealing ring is less than the width size of connecting plate, and the connecting block of being convenient for drives the connecting plate and carries out stable slip.

As the preferred scheme, the mounting groove has been seted up to the inside of fixed block, the recess has been seted up to the inside wall of mounting groove, the interior bottom wall sliding connection of recess has the sliding plate, one side fixedly connected with stripper plate of sliding plate, the second spout has been seted up to the inside of stripper plate, the interior bottom wall fixedly connected with limiting plate of recess is convenient for prevent skidding when installing fixedly to the screw.

As the preferable scheme, for mutually perpendicular setting between mounting groove and the stripper plate, one side fixedly connected with extrusion spring of sliding plate is convenient for the stripper plate to extrude the mounting tool of mounting groove inside and fix.

As the preferred scheme, the quantity of stripper plate is two, the stripper plate uses the axis of fixed block to set up as symmetry axis symmetry, and the stripper plate of being convenient for stablizes the slip.

As the preferred scheme, be sliding connection between limiting plate and the second spout, be mutually perpendicular setting between limiting plate and the stripper plate, be convenient for carry out slip spacing to the stripper plate.

Compared with the prior art, the utility model provides the backrest screw, which has the following beneficial effects:

1. according to the screw fixing device, the fixing blocks, the fixing columns, the threaded columns, the empty grooves, the first sliding grooves, the fixing rods, the connecting blocks, the hydraulic cylinders, the connecting plates and the sealing rings are arranged, so that screws are conveniently installed and fixed, water is prevented from being rusted, the service life of the device is prolonged, property loss of people is reduced, the use rapidity of the device is improved, the device is conveniently operated by people, the screws are prevented from being installed and fixed to be corroded by water, the screws are required to be replaced regularly by people, the use stability of the device is reduced, the use of the device is inconvenient, and the service life of the device is shortened.

2. According to the utility model, the installation groove, the sliding plate, the extrusion plate, the second sliding groove and the limiting plate are arranged, so that the screw is convenient to install and fix and the anti-slip device is convenient to prevent slipping, the use safety of the device is reduced, a great amount of time and energy are saved, the use stability of the device is reduced, people are prevented from slipping by using an installation tool to install the device, the device is inconvenient to use, the use rapidity of the device is reduced, the use safety of the device is reduced, and the use efficiency of the device is reduced.

Drawings

FIG. 1 is a perspective view of the present utility model;

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

FIG. 3 is an enlarged schematic view of the structure of FIG. 2A according to the present utility model;

FIG. 4 is a schematic perspective view of a seal ring according to the present utility model;

fig. 5 is a schematic perspective view of a limiting plate according to the present utility model.

In the figure: 1. a fixed block; 2. fixing the column; 3. a threaded column; 4. a hollow groove; 5. a first chute; 6. a fixed rod; 7. a connecting block; 8. a hydraulic cylinder; 9. a hydraulic cylinder; 10. a seal ring; 11. a mounting groove; 12. a groove; 13. a sliding plate; 14. an extrusion plate; 15. a second chute; 16. and a limiting plate.

Description of the embodiments

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.

In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Examples

Referring to fig. 1-5, the present embodiment provides a backrest screw, which includes a fixing block 1, a fixing column 2 fixedly connected to the bottom of the fixing block 1, a threaded column 3 fixedly connected to the bottom of the fixing column 2, a hollow groove 4 provided in the fixing block 1, and a first chute 5 provided in the inner side wall of the hollow groove 4.

The interior bottom wall fixedly connected with dead lever 6 of first spout 5, the outer wall sliding connection of dead lever 6 has connecting block 7, the interior roof fixedly connected with pneumatic cylinder 8 of empty slot 4, the output fixedly connected with connecting plate 9 of pneumatic cylinder 8, the bottom fixedly connected with sealing ring 10 of connecting plate 9, be convenient for install fixed waterproof water to rust to the screw, thereby increase the life of device, reduce people's loss of property simultaneously, make the use swiftly of improving the device, thereby be convenient for people operate the device, avoid people to install fixedly to advance water to corrode to the screw, need people regularly replace the screw, make the stability in use of reducing the device, be inconvenient for using the device, reduce the life of device simultaneously.

The shape and the size of the connecting block 7 are mutually matched with the shape and the size of the first chute 5, and the bottom of the connecting block 7 is fixedly connected with a telescopic spring, so that the connecting block 7 can stably slide.

Examples

The embodiment also proposes: the mounting groove 11 has been seted up to the inside of fixed block 1, and recess 12 has been seted up to the inside wall of mounting groove 11, and the interior bottom wall sliding connection of recess 12 has slide plate 13, and one side fixedly connected with stripper plate 14 of slide plate 13, second spout 15 has been seted up to the inside of stripper plate 14, and the interior bottom wall fixedly connected with limiting plate 16 of recess 12 is convenient for prevent skidding when installing fixedly to the screw.

The installation groove 11 and the extrusion plate 14 are mutually perpendicular, one side of the sliding plate 13 is fixedly connected with an extrusion spring, and the extrusion plate 14 can conveniently extrude the installation tool in the installation groove 11 to fix.

The number of the extrusion plates 14 is two, and the extrusion plates 14 are symmetrically arranged by taking the central axis of the fixed block 1 as a symmetry axis, so that the extrusion plates 14 can stably slide.

The limiting plate 16 and the second sliding groove 15 are in sliding connection, and the limiting plate 16 and the extrusion plate 14 are arranged in a mutually perpendicular mode, so that the extrusion plate 14 can be conveniently limited in a sliding mode.

The working principle of the utility model is as follows: when the screw is required to be installed and fixed to prevent water from entering and rusting, the hydraulic cylinder 8 is started, so that the hydraulic cylinder 8 pushes the connecting plate 9 to slide, the connecting plate 9 drives the connecting block 7 to slide on the outer wall of the fixed rod 6, the fixed rod 6 drives the sealing ring 10 to slide, and the sealing ring 10 is pushed out from the inside of the empty groove 4, so that the screw is convenient to install and fix to prevent water from entering and rusting;

when need install the fixed time to the screw and prevent skidding, through inserting the inside of mounting tool in mounting groove 11 for mounting tool presses stripper plate 14, thereby stripper plate 14 extrusion slide plate 13 slides in the inside of recess 12, and limiting plate 16 slides in the inside of second spout 15 simultaneously, makes stripper plate 14 reset through the extrusion spring, thereby stripper plate 14 extrusion mounting tool makes be convenient for install the fixed time to the screw and prevent skidding.

Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the scope of the present utility model, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.

Claims

1. The utility model provides a back screw, includes fixed block (1), its characterized in that: the bottom of the fixed block (1) is fixedly connected with a fixed column (2), the bottom end of the fixed column (2) is fixedly connected with a threaded column (3), an empty slot (4) is formed in the fixed block (1), and a first sliding slot (5) is formed in the inner side wall of the empty slot (4);

the inner bottom wall fixedly connected with dead lever (6) of first spout (5), the outer wall sliding connection of dead lever (6) has connecting block (7), the interior roof fixedly connected with pneumatic cylinder (8) of empty slot (4), the output fixedly connected with connecting plate (9) of pneumatic cylinder (8), the bottom fixedly connected with sealing ring (10) of connecting plate (9).

2. A back screw according to claim 1, wherein: the shape and the size of the connecting block (7) are matched with those of the first sliding groove (5), and the bottom of the connecting block (7) is fixedly connected with a telescopic spring.

3. A back screw according to claim 1, wherein: the connecting blocks (7) and the connecting plates (9) are tightly attached, and the diameter of the sealing ring (10) is smaller than the width of the connecting plates (9).

4. A back screw according to claim 1, wherein: the inside of fixed block (1) has seted up mounting groove (11), recess (12) have been seted up to the inside wall of mounting groove (11), interior bottom wall sliding connection of recess (12) has sliding plate (13), one side fixedly connected with stripper plate (14) of sliding plate (13), second spout (15) have been seted up to the inside of stripper plate (14), interior bottom wall fixedly connected with limiting plate (16) of recess (12).

5. A back screw according to claim 4, wherein: the installation groove (11) and the extrusion plate (14) are arranged vertically, and one side of the sliding plate (13) is fixedly connected with an extrusion spring.

6. A back screw according to claim 4, wherein: the number of the extrusion plates (14) is two, and the extrusion plates (14) are symmetrically arranged by taking the central axis of the fixed block (1) as a symmetry axis.

7. A back screw according to claim 4, wherein: the limiting plate (16) is in sliding connection with the second sliding groove (15), and the limiting plate (16) and the extrusion plate (14) are arranged vertically to each other.