CN107138447B

CN107138447B - Elastic harrow

Info

Publication number: CN107138447B
Application number: CN201710584125.7A
Authority: CN
Inventors: 陈烁
Original assignee: Individual
Current assignee: Shandong Hoh Xili Technology Co ltd
Priority date: 2017-07-18
Filing date: 2017-07-18
Publication date: 2020-11-24
Anticipated expiration: 2037-07-18
Also published as: CN107138447A

Abstract

The invention discloses an elastic rake, which belongs to the field of hardware and can enable rake strips to be loosened or tightened. The front end of the handle is provided with a left rake arm and a right rake arm through a pin shaft device, fork openings are machined at the front ends of the rake arms, notches which are communicated from left to right are machined in the middle sections of the rake arms, a bolt with a butterfly nut at the left end extends from the notch at the left side to the right side to be movably connected with an upper pin rod, the positions of the rake arms near the rear ends of the rake arms are all machined with a same section of longitudinal sliding grooves, a group of connecting rod assemblies matched with the number of the rake arms rivet the pins at the lower ends of the connecting rod assemblies to the rear ends of the rake arms, and the pins at the upper ends of the connecting rod assemblies are riveted after penetrating through the sliding grooves in the rake arms; the connecting rod assembly connected with the rake strips is arranged between the two rake arms, and two pins at two ends of the connecting rod assembly are respectively arranged in fork openings at the front ends of the rake arms to be pivoted. This design is applicable to the clearance to the spot sticker.

Description

Elastic harrow

Technical Field

The invention relates to hardware tools, in particular to a loose and tight rake for cleaning out irregular sticker advertisements in urban management work.

Background

The non-standard sticker advertisement which is forbidden to be removed but not eliminated like psoriasis is an important task for urban management cleaning work, the current common method is to firstly wet and soften the psoriasis by water and then scrape and clean the psoriasis by a shovel-shaped or hook-rake-shaped sharp tool, and the tools are generally single in shape fixing function, for example, in order to improve the working efficiency, the two tools need to be provided with: the hook harrow with the blade has the equidistant spaced apart work head and scrapes out the fastness of pasting in order to weaken the sticker, and then the reuse blade is thoroughly cleared up for the shovel form instrument of neat and closely arranged form and is scraped, and the size and specification of poster paper etc. paste the fastness differ and have to have by force weak, and its lower use of efficiency of this kind of operation mode that needs to prepare multiple instrument is also inconvenient to be difficult to satisfy the needs in actual work.

Disclosure of Invention

The invention aims to provide a novel technical scheme of an elastic harrow for a harrow, which can solve the problems.

The technical scheme of the invention comprises the following steps: the scraper arm comprises a handle, a pin shaft, a connecting rod assembly, scraper bars and scraper arms, wherein the left and right scraper arms are symmetrically arranged near the front end of the handle through the pin shaft, fork openings are formed in the front ends of the scraper arms, notches which are communicated from left to right are formed in the middle sections of the scraper arms, a bolt with a butterfly nut at the left end extends into the notches from the left side of the notch on the left scraper arm to the right side of the notch on the right side of the scraper arm and is movably connected to a pin rod arranged on the groove wall, and a part of the bolt, which is positioned between the left and right scraper arms, is also connected with a spring which is braced from one side to the other; the rake strips are flat strips, the same longitudinal sliding grooves are formed in the positions near the rear ends of the rake strips, the pins at the lower ends of the connecting rod assemblies are riveted to the rear ends of the rake strips by the connecting rod assemblies matched with the rake strips in number, and the pins at the upper ends of the connecting rod assemblies penetrate through the sliding grooves in the rake strips and are riveted; the connecting rod assembly connected with each rake strip is arranged between the two rake arms, and then two pins at two ends of the connecting rod assembly are respectively arranged in fork openings at the front ends of the rake arms to be pivoted; the opening size of the left and right harrow arms can be adjusted by rotating the butterfly nut or rotating forwards or backwards, namely, the butterfly nut drives the connecting rod assembly to synchronously move in a way of extending or shortening, so that the distance between every two harrow strips connected to the connecting rod assembly is adjusted, and the adjustment purpose of loosening or tensioning the harrow strips completely is achieved.

The invention has the beneficial effects that: the harrow strips of the harrow can be scattered or gathered according to the operation requirement, so that the harrow is multipurpose, portable and efficient.

Description of the drawings:

fig. 1 is a front view of the rake of the present design (with the rake bars in a spread apart configuration).

Fig. 2 is a left side view of the rake of the present design.

Fig. 3 is a usage operation demonstration of different states of the present design.

In each figure, 1 is a handle, 2 is a pin shaft, 3 is a notch, 4 is a pin rod, 5 is a rake arm, 6 is a fork opening, 7 is a connecting rod assembly, 8 is a chute, 9 is a rake strip, 10 is a butterfly nut, 11 is a bolt, 12 is a removed object, and 13 is a rake mark.

The specific implementation mode is as follows:

the design is further illustrated with reference to the following figures.

As shown in fig. 1 and 2, the elastic rake of the design comprises a handle 1, a pin shaft 2, a connecting rod assembly 7, rake strips 9 and rake arms 5, wherein a left rake arm 5 and a right rake arm 5 are symmetrically arranged near the front end of the handle 1 through the pin shaft 2, fork openings 6 are respectively processed at the front ends of the rake arms 5, notches 3 which are communicated from left to right are processed at the middle sections of the rake arms, a bolt 11 with a butterfly nut 10 at the left end extends into the notches from the left side of the notch on the left rake arm to the right side of the notch on the right rake arm and is movably connected to a pin rod 4 arranged on the groove wall, a spring which is tightly supported from one side to the other side is also penetrated through the part between the left rake arm and the right rake arm on the bolt 11, and the spring can constantly support the left rake arm and; the rake strips 9 are flat strips, the same longitudinal sliding grooves 8 are machined at the positions near the rear ends of the rake strips, the pins at the lower ends of the connecting rod assemblies are riveted to the rear ends of the rake strips by a group of connecting rod assemblies matched with the number of the rake strips, the pins at the upper ends of the connecting rod assemblies penetrate through the sliding grooves 8 on the rake strips and are then movably riveted, the connecting rod assemblies 7 are parallelogram connecting rod assemblies, the connecting rod assemblies can be connected with connecting rods with different lengths or different numbers to form combined structures with different lengths as required, after the rake strips and the connecting rod assemblies are arranged in the device, the distance between the rake strips can be changed along with different changes of the left width and the right width of the connecting rod assemblies, and the changing process is also a changing process that the pins arranged in the sliding grooves 8 on the rake strips 9 slide up and down in; the connecting rod assembly connected with each rake strip is arranged between the two rake arms, and then two pins at two ends of the connecting rod assembly are respectively arranged in fork openings 6 at the front ends of the rake arms to be pivoted, as shown in figures 1 and 2; when the scraper is used, the opening size of the left and right rake arms can be adjusted by rotating the butterfly nut 10 or rotating forwards or backwards, namely, the connecting rod assembly 7 is driven to move synchronously or stretching or shortening, so that the space between the rake strips connected to the connecting rod assembly is adjusted, and the purpose of adjusting the rake strips to be opened completely or tensely is achieved, the design that the rake strips can be flexibly operated and deformed has a plurality of convenient points in specific use, the scraper can be used for multiple purposes, the rake strips can be scattered when the paster stains to be cleaned are wider or difficult to be cleaned are matched, the rake strips can be folded into a cutting edge completely closed shape when the paster stains which are smaller and easy to be cleaned are matched, just as shown in figure 3, the removed object, namely the paster 12 can clean strip-shaped rake marks (cleaning surfaces) such as 13 when the rake strips are scattered, and can clean the flaky rake marks (cleaning surfaces) 13 when the rake strips are collected, is a beneficial improvement of the rake strip of the cleaning tool.

Claims

1. The utility model provides an elasticity harrow of clearance unnormal sticker advertisement, it contains handle, round pin axle, link assembly, harrow strip, harrow arm, characterized by:

the left and right rake arms are symmetrically arranged near the front end of the handle through a pin shaft, fork openings are machined at the front ends of the rake arms, left and right through notches are machined in the middle sections of the rake arms, a bolt with a butterfly nut at the left end extends into the notches from the left side of the notch in the rake arm at the left side to the right side until the left side of the notch in the rake arm at the right side is movably connected to a pin rod arranged on the groove wall, a spring which is tightly supported at one side is further connected between the left rake arm and the right rake arm on the bolt in a penetrating mode, and the left rake arm and the right rake arm can be spread towards two sides at any time through the;

the rake strips are flat strips, the same longitudinal sliding grooves are formed in the positions close to the rear ends of the rake strips, the pins at the lower ends of the connecting rod assemblies are riveted to the rear ends of the rake strips by a group of connecting rod assemblies matched with the rake strips in number, and the pins at the upper ends of the connecting rod assemblies penetrate through the sliding grooves in the rake strips and are then movably riveted;

the connecting rod assembly is a parallelogram connecting rod assembly, the connecting rod assembly can be connected with connecting rods with different lengths or different numbers to form a combined structure with different lengths according to requirements, the distance of the rake strips can change along with the different left and right width changes of the connecting rod assembly, and the change process is also a change process of the pins arranged in the sliding grooves on the rake strips sliding up and down in the sliding grooves;

the connecting rod assembly connected with each rake strip is arranged between the two rake arms, and then two pins at two ends of the connecting rod assembly are respectively arranged in fork openings at the front ends of the rake arms to be pivoted;

the opening size of the left and right harrow arms can be adjusted by rotating the butterfly nut or rotating forwards or backwards, namely, the connecting rod assembly is driven to do synchronous motion of extension or shortening, the distance between every two harrow strips connected to the connecting rod assembly is adjusted, and the adjusting purpose of loosening or tense closing is achieved;

when the scraper is used for treating wider paster to be cleaned or paster stains difficult to clean, the scraper can be scattered, and when the scraper is used for treating smaller and easy-to-clean paster stains, the scraper can be folded into a completely closed cutting edge shape, and the removed object, namely the paster can clean strip-shaped harrow stains under the condition that the harrow stains are scattered, and can clean flaky harrow stains under the condition that the harrow stains are gathered.