CN221119064U

CN221119064U - Doctor blade for cement concrete

Info

Publication number: CN221119064U
Application number: CN202322362622.6U
Authority: CN
Inventors: 郑航; 熊嘉龙; 郑华平; 李伟
Original assignee: Xinjiang Jintudi Cement Products Co ltd
Current assignee: Xinjiang Jintudi Cement Products Co ltd
Priority date: 2023-08-31
Filing date: 2023-08-31
Publication date: 2024-06-11
Anticipated expiration: 2033-08-31

Abstract

The utility model discloses a scraping knife for cement concrete, which comprises a horizontal scraping plate and a sawtooth scraping plate, wherein two groups of lugs are symmetrically arranged on two sides of the surface of the horizontal scraping plate, a chute is formed in one side of each lug, two side edges of the sawtooth scraping plate are respectively and slidably arranged in the chute of the two groups of lugs, a positioning assembly is arranged on one side of each lug, and a handle is arranged on the surface of the horizontal scraping plate through a fixing screw. The exposed length of the saw teeth of the saw tooth scraping plate can be adjusted by pulling the lifting block, the horizontal scraping plate is used as a substrate for scraping, and accordingly the depth of tooth marks left on cement concrete can be adjusted, the depth of the tooth marks is consistent, and the precision of tooth mark scraping is improved.

Description

Doctor blade for cement concrete

Technical Field

The utility model relates to the technical field of cement concrete scraping knives, in particular to a cement concrete scraping knife.

Background

At present, the doctor tools in the market are various, and when the tile is tiled, a plurality of different kinds of doctor tools are often used for finishing the whole paving work. The design of the scraping teeth and the flat edges of the traditional tooth-shaped scraper is designed in a pair, the direction is required to be continuously adjusted in use or the common scraper and the tooth-shaped scraper are matched for use, and the scraping teeth and the flat edges are inconvenient in plastering back and forth. Many workers use the same doctor blade in different situations to reduce the variety of carrying tools, resulting in unstable tile quality.

Through retrieval, the Chinese patent application number is: CN202020487544.6 discloses a novel cement scraper, which is characterized by comprising a cutter holder, an L-shaped connecting rod arranged on the cutter holder, a handle arranged on the L-shaped connecting rod, a U-shaped concave position arranged on the back surface of the cutter holder, a scraper blade arranged in the U-shaped concave position, and screws penetrating through the cutter holder to fix the scraper blade. The utility model has the advantages of convenient and flexible use and simple structure.

Above-mentioned technical scheme has not been able to adjust the degree of depth of tooth trace when carrying out the scraping of cockscomb structure despite making cement scraper have functional diversity, and the staff only can rely on the sensation to carry out even operation for the precision at the time of scraping of cockscomb structure is lower, and the cement surface appears uneven in depth.

Disclosure of utility model

The utility model aims to provide a scraping knife for cement concrete, which can adjust the exposed length of saw teeth of a saw tooth scraping plate by pulling a lifting block, and uses a horizontal scraping plate as a substrate for scraping, so that the depth of tooth marks left on the cement concrete can be adjusted, the depth of the tooth marks is consistent, the precision of tooth mark scraping is improved, and the problems in the background art are solved.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

The utility model provides a cement concrete is with scraping flat knife, includes horizontal scraper blade and sawtooth scraper blade, the surface bilateral symmetry of horizontal scraper blade is provided with two sets of lugs, the spout has been seted up to one side of lug, two sides of sawtooth scraper blade slidable mounting respectively in the spout of two sets of lugs inside, one side of lug is provided with locating component, the handle is installed through the fixed screw to the surface of horizontal scraper blade.

Preferably, the positioning assembly comprises a 匚 -shaped frame and a positioning rod, and the 匚 -shaped frame is fixedly welded to the outer side of the lug.

Preferably, the locating rod is inserted into the 匚 -shaped frame and the outer wall of the lug in a sliding manner, and one end of the locating rod penetrates through the lug and extends to the inside of the sliding groove.

Preferably, a plurality of groups of positioning grooves are formed in the two side edges of the sawtooth scraping plate at equal intervals, and the positioning rods are inserted into the positioning grooves.

Preferably, a stop block is arranged in the 匚 -shaped frame on the positioning rod, the stop block is clung to the outer wall of the convex block, a compression spring is sleeved between the stop block and the 匚 -shaped frame on the positioning rod, and a lifting block is arranged at one end of the positioning rod, which is positioned outside the 匚 -shaped frame.

Preferably, the horizontal scraping plate is provided with a fixed cylinder, the end part of the handle is inserted into the fixed cylinder, the end part of the handle is provided with a threaded hole for installing a fixed screw, and the outer wall of the fixed cylinder is provided with a through hole for the fixed screw to pass through.

Compared with the prior art, the utility model has the beneficial effects that:

According to the utility model, the protruding blocks with the sliding grooves are arranged on two sides of the horizontal scraping plate, the sawtooth scraping plate is slidably arranged in the sliding grooves, the positioning assembly comprising the 匚 -shaped frame and the positioning rod is arranged on the protruding blocks, the positioning rod is slidably inserted into the protruding blocks, the positioning rod is inserted into the positioning grooves on the side edges of the sawtooth scraping plate, the stop block and the compression spring are arranged on the positioning rod, and when the horizontal scraping plate is used, the exposed length of the sawtooth scraping plate can be adjusted by pulling the lifting block, and the horizontal scraping plate is taken as a substrate for scraping, so that the depth of tooth marks left on cement concrete can be adjusted, the depth of the tooth marks is consistent, and the precision of tooth mark type scraping is improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the structure of the positioning rod of the present utility model;

FIG. 3 is a schematic view of the structure of the handle of the present utility model.

In the figure: 1. a horizontal scraper; 2. a serrated scraper; 3. a bump; 4. a chute; 5. a handle; 6.匚 -shaped frames; 7. a positioning rod; 8. a positioning groove; 9. a stop block; 10. a compression spring; 11. lifting the block; 12. a fixed cylinder; 13. a threaded hole; 14. and a through hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the present utility model provides a technical solution:

The utility model provides a cement concrete is with scraping flat knife, includes horizontal scraper blade 1 and sawtooth scraper blade 2, and the surface bilateral symmetry of horizontal scraper blade 1 is provided with two sets of lugs 3, and spout 4 has been seted up to one side of lug 3, and two sides of sawtooth scraper blade 2 slidable mounting respectively in the spout 4 of two sets of lugs 3 inside, and one side of lug 3 is provided with locating component, and handle 5 is installed through the fixed screw on the surface of horizontal scraper blade 1.

The positioning assembly comprises a 匚 -shaped frame 6 and a positioning rod 7, wherein the 匚 -shaped frame 6 is fixedly welded on the outer side of the lug 3. The locating rod 7 is inserted into the 匚 -shaped frame 6 and the outer wall of the lug 3 in a sliding mode, and one end of the locating rod 7 penetrates through the lug 3 and extends to the inside of the sliding groove 4. A plurality of groups of positioning grooves 8 are formed in the two side edges of the sawtooth scraping plate 2 at equal intervals, and the positioning rods 7 are inserted into the positioning grooves 8. The inside that is located 匚 shape framves 6 on the locating lever 7 is provided with dog 9, and dog 9 hugs closely in the outer wall of lug 3, has cup jointed compression spring 10 between dog 9 and 匚 shape frame 6 on the locating lever 7, and the locating lever 7 is located 匚 shape frame 6 outside one end is provided with and draws piece 11.

According to the utility model, the protruding blocks 3 with the sliding grooves 4 are arranged on two sides of the horizontal scraping plate 1, the sawtooth scraping plate 2 is slidably arranged in the sliding grooves 4, the positioning components comprising the 匚 -shaped frame 6 and the positioning rods 7 are arranged on the protruding blocks 3, the positioning rods 7 are slidably inserted into the protruding blocks 3, the positioning rods 7 are inserted into the positioning grooves 8 on the side edges of the sawtooth scraping plate 2, the stop blocks 9 and the compression springs 10 are arranged on the positioning rods 7, and when the horizontal scraping plate is used, the exposed sawtooth length of the sawtooth scraping plate 2 can be adjusted by pulling the lifting blocks 11, and the horizontal scraping plate 1 is taken as a substrate for scraping, so that the depth of a tooth mark left on cement concrete can be adjusted, the depth of the tooth mark is consistent, and the precision of tooth mark scraping is improved.

In addition, through the locating component to the combination use of sawtooth scraper blade 2 and horizontal scraper blade 1, can be convenient for install and dismantle sawtooth scraper blade 2 fast convenient, improved availability factor.

The horizontal scraping plate 1 is provided with a fixed cylinder 12, the end part of the handle 5 is inserted into the fixed cylinder 12, the end part of the handle 5 is provided with a threaded hole 13 for installing a fixed screw, and the outer wall of the fixed cylinder 12 is provided with a through hole 14 for the fixed screw to pass through.

Through setting up the fixed section of thick bamboo 12 that has through-hole 14 on horizontal scraper blade 1, the tip of handle 5 is pegged graft in fixed section of thick bamboo 12, and the tip of handle 5 sets up the screw hole 13 that corresponds with the fixed screw, can be convenient for install the use and dismantle the change handle 5, and each part of this device all can carry out quick convenient combination and replacement, has improved the practical value of device.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims

1. The utility model provides a cement concrete is with doctor blade, includes horizontal scraper blade (1) and sawtooth scraper blade (2), its characterized in that: two groups of protruding blocks (3) are symmetrically arranged on two sides of the surface of the horizontal scraping plate (1), a sliding groove (4) is formed in one side of each protruding block (3), two side edges of the sawtooth scraping plate (2) are respectively and slidably arranged inside the sliding groove (4) of each group of protruding blocks (3), a positioning assembly is arranged on one side of each protruding block (3), and a handle (5) is arranged on the surface of the horizontal scraping plate (1) through a fixing screw.

2. A doctor blade for cement concrete according to claim 1, wherein: the positioning assembly comprises a 匚 -shaped frame (6) and a positioning rod (7), and the 匚 -shaped frame (6) is fixedly welded on the outer side of the lug (3).

3. A doctor blade for cement concrete according to claim 2, characterized in that: the locating rod (7) is inserted into the outer walls of the 匚 -shaped frame (6) and the protruding block (3) in a sliding mode, and one end of the locating rod (7) penetrates through the protruding block (3) and extends to the inside of the sliding groove (4).

4. A doctor blade for cement concrete according to claim 3, wherein: the saw tooth scraping plate is characterized in that a plurality of groups of positioning grooves (8) are formed in two side edges of the saw tooth scraping plate (2) at equal intervals, and the positioning rods (7) are inserted into the positioning grooves (8).

5. The doctor blade for cement concrete according to claim 4, wherein: the inside that is located 匚 shape frame (6) on locating lever (7) is provided with dog (9), dog (9) are hugged closely in the outer wall of lug (3), compression spring (10) have been cup jointed between dog (9) and 匚 shape frame (6) on locating lever (7), locating lever (7) are located 匚 shape frame (6) outside one end is provided with and carries and draw piece (11).

6. A doctor blade for cement concrete according to claim 1, wherein: the horizontal scraper blade (1) is provided with a fixed cylinder (12), the end part of the handle (5) is inserted into the fixed cylinder (12), the end part of the handle (5) is provided with a threaded hole (13) for installing a fixing screw, and the outer wall of the fixed cylinder (12) is provided with a through hole (14) for the fixing screw to pass through.