CN215926590U

CN215926590U - Scraper knife for civil engineering of convenient blade change

Info

Publication number: CN215926590U
Application number: CN202120620699.7U
Authority: CN
Inventors: 左开莉
Original assignee: Individual
Current assignee: Shanghai Jianyi Construction Engineering Co.,Ltd.
Priority date: 2021-03-26
Filing date: 2021-03-26
Publication date: 2022-03-01
Anticipated expiration: 2031-03-26

Abstract

The utility model discloses a scraper knife for civil engineering, which is convenient for replacing a blade and comprises an installation rod, wherein a threaded hole is formed in the bottom end of the installation rod, a threaded rod is arranged in the threaded hole, the bottom end of the threaded rod is installed at the top end of a connecting rod, a first installation plate is installed at the bottom end of the connecting rod, second installation plates are installed on two sides of the lower surface of the first installation plate, first sliding grooves are formed in two sides of the lower surface of the first installation plate, the first sliding grooves are located between every two adjacent second installation plates, a limiting rod is installed at one end of the inner side of each first sliding groove, the other end of each limiting rod penetrates through a first through hole and is installed at the other end of the inner side of each first sliding groove, and the first through hole is formed in the outer wall of a first sliding block. The adjustable scraper knife can adjust the length of the scraper knife, is convenient for workers to use, enhances the practicability of the adjustable scraper knife, facilitates the workers to replace the blade, and further enhances the practicability of the adjustable scraper knife.

Description

Scraper knife for civil engineering of convenient blade change

Technical Field

The utility model relates to the technical field of civil engineering equipment, in particular to a scraper knife for civil engineering, which is convenient for replacing a blade.

Background

Civil engineering is a general term for scientific technology for building various land engineering facilities. It refers to both the materials, equipment used and the technical activities carried out such as surveying, designing, construction, maintenance, repair, etc., as well as the objects of engineering construction. I.e. various engineering facilities such as houses, roads, railways, pipelines, tunnels, bridges, canals, dams, ports, power stations, airports, ocean platforms, water supply and drainage and protection projects, which are built on or under the ground, on land and directly or indirectly serve human life, production, military affairs and scientific research. The civil engineering refers to engineering entities for surveying, planning, designing, constructing, installing and maintaining various technical works and the like of newly-built, reconstructed or expanded buildings, structures, related supporting facilities and the like of various projects except house buildings. The scraper is a piece of equipment commonly used in civil engineering construction.

However, the blade and the handle of the prior scraper knife for civil engineering are tightly connected together, so that the replacement of the blade is inconvenient, the whole scraper knife can only be replaced when the blade is damaged, the cost is higher, the length of the scraper knife is almost fixed, when a worker uses the scraper knife, the construction at a far place is troublesome, and the practicability is not high; therefore, the existing use requirements are not satisfied.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a scraper knife for civil engineering, which is convenient for replacing a blade and aims to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a scraper knife for civil engineering convenient for replacing a blade comprises an installation rod, wherein the bottom end of the installation rod is provided with a threaded hole, a threaded rod is arranged in the threaded hole, the bottom end of the threaded rod is installed at the top end of a connecting rod, a first installation plate is installed at the bottom end of the connecting rod, second installation plates are installed on two sides of the lower surface of the first installation plate, first sliding grooves are formed in two sides of the lower surface of the first installation plate and are positioned between every two adjacent second installation plates, a limiting rod is installed at one end of the inner side of each first sliding groove, the other end of each limiting rod penetrates through a first through hole and is installed at the other end of the inner side of each first sliding groove, a first through hole is formed in the outer wall of a first sliding block, a third installation plate is installed at the bottom of the first sliding block, a first spring is arranged on the outer wall of one side of the third installation plate, and the other end of the first spring is installed on the outer wall of one side of the second installation plate, the outer wall of one side of the second mounting plate and the outer wall of one side of the third mounting plate are respectively provided with a first limiting column, the first limiting columns are positioned in the first springs, a second convex block is arranged below the outer wall of the other side of the third mounting plate, the central position of the lower surface of the second mounting plate is provided with a second mounting block, the second mounting block is positioned between every two adjacent second mounting plates, the outer wall of the second mounting block is provided with a third through hole, the rear end of the inner side of the third through hole is provided with a second chute, the two ends of the inner side of the second chute are respectively provided with a second sliding block, the front end of the second sliding block is provided with a second connecting plate, the outer wall of one side of the second connecting plate is provided with a second spring, the other end of the second spring is arranged on the outer wall of one side of the first connecting plate, and the outer walls of one side of the first connecting plate and the second connecting plate are both provided with second limiting columns, and the spacing post of second all is located the inside of second spring, the opposite side outer wall top at the third mounting panel is installed to the opposite side outer wall of first connecting plate, the fourth through-hole has been seted up to the inboard front end of third through-hole, install first lug in the fourth through-hole, the bottom of second installation piece is provided with first installation piece, the second through-hole has all been seted up on the both sides outer wall of first installation piece, the blade is installed to the bottom of first installation piece.

Preferably, the external thread on the outer wall of the threaded rod is meshed and connected with the internal thread on the hole wall of the threaded hole on the mounting rod.

Preferably, the outer wall of the second bump is in clearance connection with the inner wall of the second through hole.

Preferably, the outer wall of the limiting rod is in clearance connection with the inner wall of the first through hole in the first sliding block.

Preferably, the outer wall of the first bump is in clearance connection with the inner wall of the fourth through hole.

Preferably, the outer walls of the two sides of the first bump are respectively provided with a limiting plate, and the limiting plates are positioned on the inner side of the third through hole.

Compared with the prior art, the utility model has the beneficial effects that: through the matching arrangement of the mounting rod, the threaded hole, the threaded rod and the connecting rod, the threaded hole is formed in the bottom end of the mounting rod, the threaded rod is mounted in the threaded hole, an internal thread on the wall of the threaded hole is meshed with an external thread on the outer wall of the threaded rod, the bottom end of the threaded rod is mounted on the connecting rod, when a worker uses the scraper knife, the worker can rotate the mounting rod forwards or backwards, the distance between the mounting rod and the connecting rod can be adjusted through the action of the threaded rod and the threaded hole, the scraper knife can be conveniently used for constructing a remote place, and the practicability of the scraper knife is enhanced. Through the matching arrangement of the first mounting plate, the second mounting plate, the third mounting plate, the first mounting block, the second mounting block, the first spring, the second spring, the first connecting plate and the second connecting plate, the bottom of the first mounting block is provided with a blade, the outer walls of two sides of the first mounting block are provided with second through holes, the lower part of the outer wall of one side of the third mounting plate is provided with a second lug, the outer wall of the second lug is in clearance connection with the inner wall of the second through hole, the second mounting plate is connected with the third mounting plate through the first spring, the upper part of the outer wall of one side of the second mounting plate is provided with the first connecting plate, the first connecting plate is connected with the second connecting plate through the second spring, when the blade needs to be replaced, the first lug is pressed down, the first lug moves downwards, so that the lower second connecting plate moves towards two sides, the second connecting plate drives the third mounting plate to move, so that the second lug moves from the inside of the second through hole to the outside, after the blade is replaced, under the action of elastic deformation reset of the first spring and the second spring, the third mounting plate returns to the initial position, the second bump enters the second through hole again to clamp the blade, the blade is convenient to replace for workers, and the practicability of the cutter is further enhanced.

Drawings

FIG. 1 is a schematic cross-sectional front view of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is a schematic cross-sectional view of a second mounting block of the present invention;

fig. 4 is a schematic enlarged view of a portion B of fig. 3 according to the present invention.

In the figure: 1. a blade; 2. a first mounting block; 3. a second mounting block; 4. a first mounting plate; 5. a connecting rod; 6. a threaded rod; 7. mounting a rod; 8. a threaded hole; 9. a first slider; 10. a first through hole; 11. a first chute; 12. a limiting rod; 13. a first bump; 14. a second mounting plate; 15. a third mounting plate; 16. a first limit post; 17. a first spring; 18. a second bump; 19. a second through hole; 20. a first connecting plate; 21. a second limit post; 22. a second spring; 23. a third through hole; 24. a fourth via hole; 25. a second connecting plate; 26. a second slider; 27. a second chute; 28. and a limiting plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, an embodiment of the present invention is shown: a scraper knife for civil engineering convenient for replacing a blade comprises a mounting rod 7, wherein the bottom end of the mounting rod 7 is provided with a threaded hole 8, a threaded rod 6 is arranged in the threaded hole 8, the bottom end of the threaded rod 6 is arranged at the top end of a connecting rod 5, the bottom end of the connecting rod 5 is provided with a first mounting plate 4, two sides of the lower surface of the first mounting plate 4 are respectively provided with a second mounting plate 14, two sides of the lower surface of the first mounting plate 4 are respectively provided with a first chute 11, the first chutes 11 are positioned between every two adjacent second mounting plates 14, one end of the inner side of the first chute 11 is provided with a limiting rod 12, the other end of the limiting rod 12 passes through a first through hole 10 and is arranged at the other end of the inner side of the first chute 11, the first through hole 10 is arranged on the outer wall of a first slide block 9, the bottom of the first slide block 9 is provided with a third mounting plate 15, the outer wall of one side of the third mounting plate 15 is provided with a first spring 17, the other end of the first spring 17 is arranged on the outer wall of one side of the second mounting plate 14, the outer walls of one side of the second mounting plate 14 and one side of the third mounting plate 15 are both provided with a first limiting column 16, the first limiting column 16 is positioned inside the first spring 17, a second bump 18 is arranged below the outer wall of the other side of the third mounting plate 15, the central position of the lower surface of the second mounting plate 14 is provided with a second mounting block 3, the second mounting block 3 is positioned between every two adjacent second mounting plates 14, the outer wall of the second mounting block 3 is provided with a third through hole 23, the rear end of the inner side of the third through hole 23 is provided with a second chute 27, the two ends of the inner side of the second chute 27 are both provided with second sliding blocks 26, the front end of the second sliding block 26 is provided with a second connecting plate 25, the outer wall of one side of the second connecting plate 25 is provided with a second spring 22, the other end of the second spring 22 is arranged on the outer wall of one side of the first connecting plate 20, the outer walls of one side of the first connecting plate 20 and the second connecting plate 25 are respectively provided with a second limiting column 21, the second limiting columns 21 are respectively positioned in the second springs 22, the outer wall of the other side of the first connecting plate 20 is arranged above the outer wall of the other side of the third mounting plate 15, the front end of the inner side of the third through hole 23 is provided with a fourth through hole 24, a first lug 13 is arranged in the fourth through hole 24, the bottom of the second mounting block 3 is provided with a first mounting block 2, the outer walls of two sides of the first mounting block 2 are respectively provided with a second through hole 19, the bottom of the first mounting block 2 is provided with a blade 1, an external thread on the outer wall of a threaded rod 6 is meshed and connected with an internal thread on the hole wall of a threaded hole 8 on the mounting rod 7, the outer wall of the second lug 18 is in clearance connection with the inner wall of the second through hole 19, the outer wall of a limiting rod 12 is in clearance connection with the inner wall of the first through hole 10 on the first sliding block 9, the outer wall of the first lug 13 is in clearance connection with the inner wall of the fourth through hole 24, limiting plates 28 are mounted on the outer walls of the two sides of the first bump 13, and the limiting plates 28 are located on the inner sides of the third through holes 23.

The working principle is as follows: through the cooperation setting of installation pole 7, screw hole 8, threaded rod 6 and connecting rod 5, screw hole 8 is seted up to the bottom of installation pole 7, install threaded rod 6 in the screw hole 8, and the internal thread on the screw hole 8 pore wall is connected with the external screw thread meshing on the threaded rod 6 outer wall, the bottom of threaded rod 6 is installed on connecting rod 5, when the staff uses, corotation or reversal installation pole 7 can adjust the distance between installation pole 7 and connecting rod 5 through the effect of threaded rod 6 and screw hole 8, the staff is convenient for carry out the construction to the place of distant point when using the spiller, the practicality of the utility model has been strengthened. Through the matching arrangement of the first mounting plate 4, the second mounting plate 14, the third mounting plate 15, the first mounting block 2, the second mounting block 3, the first spring 17, the second spring 22, the first connecting plate 20 and the second connecting plate 25, the bottom of the first mounting block 2 is provided with the blade 1, the outer walls of two sides of the first mounting block 2 are both provided with the second through holes 19, the lower part of the outer wall of one side of the third mounting plate 15 is provided with the second lug 18, the outer wall of the second lug 18 is in clearance connection with the inner wall of the second through hole 19, the second mounting plate 14 is connected with the third mounting plate 15 through the first spring 17, the first connecting plate 20 is arranged above the outer wall of one side of the third mounting plate 15, the first connecting plate 20 is connected with the second connecting plate 25 through the second spring 22, when the blade 1 needs to be replaced, the first lug 13 is pressed down, the first lug 13 moves downwards, so that the lower second connecting plate 25 moves towards two sides, the second connecting plate 25 drives the third mounting plate 15 to move, so that the second bump 18 moves from the inside to the outside of the second through hole 19, after the blade 1 is replaced, under the action of elastic deformation reset of the first spring 17 and the second spring 22, the third mounting plate 15 returns to the initial position, the second bump 18 enters the second through hole 19 again to clamp the blade 1, replacement of the blade 1 by workers is facilitated, and the practicability of the utility model is further enhanced.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a make things convenient for spiller for civil engineering of blade change, includes installation pole (7), its characterized in that: the bottom of the mounting rod (7) is provided with a threaded hole (8), a threaded rod (6) is installed in the threaded hole (8), the bottom of the threaded rod (6) is installed at the top end of the connecting rod (5), the bottom of the connecting rod (5) is provided with a first mounting plate (4), the two sides of the lower surface of the first mounting plate (4) are provided with second mounting plates (14), the two sides of the lower surface of the first mounting plate (4) are provided with first chutes (11), the first chutes (11) are located between every two adjacent second mounting plates (14), one end of the inner side of each first chute (11) is provided with a limiting rod (12), the other end of each limiting rod (12) penetrates through a first through hole (10) to be installed at the other end of the inner side of each first chute (11), the first through hole (10) is arranged on the outer wall of the first slider (9), the bottom of the first slider (9) is provided with a third mounting plate (15), a first spring (17) is arranged on the outer wall of one side of the third mounting plate (15), the other end of the first spring (17) is arranged on the outer wall of one side of the second mounting plate (14), first limiting columns (16) are arranged on the outer walls of one side of the second mounting plate (14) and one side of the third mounting plate (15), the first limiting columns (16) are located inside the first spring (17), a second bump (18) is arranged below the outer wall of the other side of the third mounting plate (15), a second mounting block (3) is arranged at the central position of the lower surface of the second mounting plate (14), the second mounting blocks (3) are located between every two adjacent second mounting plates (14), a third through hole (23) is formed in the outer wall of the second mounting block (3), a second sliding groove (27) is formed in the rear end of the inner side of the third through hole (23), and second sliding blocks (26) are arranged at two ends of the inner side of the second sliding groove (27), a second connecting plate (25) is installed at the front end of the second sliding block (26), a second spring (22) is arranged on the outer wall of one side of the second connecting plate (25), the other end of the second spring (22) is installed on the outer wall of one side of the first connecting plate (20), second limiting columns (21) are installed on the outer walls of one sides of the first connecting plate (20) and the second connecting plate (25), the second limiting columns (21) are located inside the second spring (22), the outer wall of the other side of the first connecting plate (20) is installed above the outer wall of the other side of the third installing plate (15), a fourth through hole (24) is formed at the front end of the inner side of the third through hole (23), a first convex block (13) is installed in the fourth through hole (24), a first installing block (2) is arranged at the bottom of the second installing block (3), second through holes (19) are formed in the outer walls of two sides of the first installing block (2), the bottom of the first mounting block (2) is provided with a blade (1).

2. The scraper knife for civil engineering of convenient blade change of claim 1, characterized by that: and the external thread on the outer wall of the threaded rod (6) is meshed and connected with the internal thread on the hole wall of the threaded hole (8) on the mounting rod (7).

3. The scraper knife for civil engineering of convenient blade change of claim 1, characterized by that: the outer wall of the second bump (18) is in clearance connection with the inner wall of the second through hole (19).

4. The scraper knife for civil engineering of convenient blade change of claim 1, characterized by that: the outer wall of the limiting rod (12) is in clearance connection with the inner wall of the first through hole (10) in the first sliding block (9).

5. The scraper knife for civil engineering of convenient blade change of claim 1, characterized by that: the outer wall of the first bump (13) is in clearance connection with the inner wall of the fourth through hole (24).

6. The scraper knife for civil engineering of convenient blade change of claim 1, characterized by that: limiting plates (28) are mounted on the outer walls of the two sides of the first protruding block (13), and the limiting plates (28) are located on the inner sides of the third through holes (23).