Mixed type glue scraping serrated knife

Abstract

The utility model relates to the technical field of scrapers, in particular to a mixed type glue scraping serrated knife which comprises a handle and a scraper blade, the scraper blade comprises a main body piece and a front sawtooth set, the front sawtooth set comprises a plurality of front tooth pieces which are arranged at intervals and sequentially arranged, and a first inter-tooth groove or a second inter-tooth groove is formed between every two adjacent front tooth pieces. The number of the first inter-tooth grooves and the number of the second inter-tooth grooves are both multiple, at least one first inter-tooth groove is formed between every two adjacent second inter-tooth grooves, the front ends of the first inter-tooth grooves and the front ends of the second inter-tooth grooves are open, and the depth of the second inter-tooth grooves sinking towards the main body piece is larger than the depth of the first inter-tooth grooves sinking towards the main body piece. The front sawtooth set is combined by adopting mixed inter-tooth grooves and tooth pieces of different sizes to form a mixed sawtooth set, when blade coating operation is carried out under the condition that a base layer or the ceramic tile is not flat, the effective bonding face of the ceramic tile and a ceramic tile adhesive layer is improved, and the hollowing phenomenon generated in the paving operation of the ceramic tile can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of scrapers, in particular to a mixed rubber scraping toothed knife. Background Art

[0002] With the development of science and technology and the progress of society, tile adhesive has been widely used in the construction, interior decoration and other industries. When laying tiles, tile adhesive is usually used as a building adhesive. The tile adhesive is scraped with a scraping tooth knife, and then the bottom surface and the tile are bonded to complete the tile laying operation. However, traditional tooth knives usually use uniformly distributed teeth, that is, the size and shape of each tooth piece are the same, evenly distributed, and the depth of the grooves between each tooth piece is consistent. When the base or tile is uneven, hollowing is prone to occur, and the effective bonding surface is reduced, which has an adverse effect on the tile laying operation. Summary of the invention

[0003] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the utility model is to provide a hybrid glue scraper tooth knife. The front serration group of the hybrid glue scraper tooth knife adopts a hybrid serration group by combining mixed inter-tooth grooves and tooth plates of different sizes. When scraping and coating operations are performed on an uneven base layer or tile, the effective bonding surface between the tile and the tile adhesive layer is improved, which can effectively reduce the hollowing phenomenon of the tile during the paving operation, improve the construction quality, and has strong practicality.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: a hybrid rubber scraper tooth knife, comprising a handle and a scraper blade, the upper end surface of the scraper blade is connected to the lower end of the handle, the scraper blade comprises a main body sheet and a front serration group arranged at the front end of the main body sheet, the front serration group comprises a plurality of front teeth sheets arranged at intervals and arranged in sequence, a first inter-tooth groove or a second inter-tooth groove penetrating the upper and lower end surfaces of the main body sheet is arranged between adjacent front teeth sheets, the number of the first inter-tooth grooves and the second inter-tooth grooves are both multiple, at least one first inter-tooth groove is arranged between adjacent second inter-tooth grooves, the front ends of the first inter-tooth grooves and the second inter-tooth grooves are both open, and the depth of the second inter-tooth groove sunken into the main body sheet is greater than the depth of the first inter-tooth groove sunken into the main body sheet.

[0005] Furthermore, the plurality of front tooth plates are respectively first front tooth plates and second front tooth plates, the front serration group includes a plurality of first front tooth plates and a plurality of second front tooth plates, at least one first front tooth plate is arranged between two adjacent second front tooth plates, and the width of the second front tooth plate is greater than the width of the first front tooth plate.

[0006] Furthermore, the number of first inter-tooth grooves arranged between any adjacent second front tooth plates is the same.

[0007] Furthermore, the cross-sections of the front tooth plate, the first inter-tooth groove and the second inter-tooth groove are all rectangular.

[0008] Furthermore, the number of first inter-tooth grooves arranged between any two adjacent second inter-tooth grooves is the same.

[0009] Furthermore, 1 to 3 first inter-tooth grooves are arranged between any two adjacent second inter-tooth grooves.

[0010] Furthermore, the second inter-tooth groove is located between a second front tooth plate and an adjacent first front tooth plate.

[0011] Furthermore, the width of the second inter-tooth groove is greater than the width of the first inter-tooth groove.

[0012] Furthermore, the depth of the first inter-tooth groove is 2-6 mm, and the width of the cross section of the first inter-tooth groove is 2-6 mm; the depth of the second inter-tooth groove is 4-8 mm, and the width of the cross section of the second inter-tooth groove is 4-8 mm.

[0013] Furthermore, the width of the cross section of the front tooth plate is 2-6 mm.

[0014] Furthermore, the cross-section of the scraper blade is rectangular, and the scraper blade also includes a side serration group arranged at one side end of the main body sheet, the side serration group includes a plurality of side tooth sheets arranged at intervals and arranged in sequence, and a third inter-tooth groove or a fourth inter-tooth groove penetrating the upper and lower end surfaces of the main body sheet is provided between adjacent side tooth sheets, the number of the third inter-tooth grooves and the fourth inter-tooth grooves are both multiple, and at least one third inter-tooth groove is provided between adjacent fourth inter-tooth grooves, and the side ends of the third inter-tooth grooves and the fourth inter-tooth grooves are open.

[0015] Furthermore, the depth of the fourth inter-tooth groove sunken into the main body sheet is greater than the depth of the third inter-tooth groove sunken into the main body sheet.

[0016] The beneficial effects of the utility model are as follows: the front sawtooth group of the hybrid glue scraper knife of the utility model adopts a combination of mixed inter-tooth grooves and tooth plates of different sizes to form a hybrid sawtooth group. When performing scraping operations on an uneven base layer or tile, the effective bonding surface between the tile and the tile adhesive layer is increased, which can effectively reduce the hollowing phenomenon of the tile during the paving operation, improve the construction quality, and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a partial cross-sectional view of the sawtooth group of the rubber scraping tooth knife in the prior art.

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the hybrid rubber scraping tooth knife of the utility model.

[0019] Figure 3 It is a partial cross-sectional view of the front sawtooth group of the hybrid rubber scraping tooth knife of Example 1.

[0020] Figure 4 It is a schematic diagram of the structure of the tile adhesive layer, the tile and the base layer after being processed by the scraping tooth knife in the prior art.

[0021] Figure 5 It is a structural schematic diagram of the tile adhesive layer, the tile and the base layer after being processed by the hybrid type scraping tooth knife of the utility model.

[0022] Reference numerals include:

[0023] 1-scraper blade, 10-main body, 11-first front tooth plate, 12-second front tooth plate, 13-first inter-tooth groove, 14-second inter-tooth groove, 15-first side tooth plate, 16-second side tooth plate, 17-third inter-tooth groove, 18-fourth inter-tooth groove, 2-handle, 3-ceramic tile, 4-ceramic tile adhesive layer, 5-base layer, 6-tooth plate. DETAILED DESCRIPTION

[0024] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with embodiments and drawings. The contents mentioned in the implementation modes are not intended to limit the present invention.

[0025] In this embodiment, Figure 2-3 As shown, a hybrid rubber scraper toothed knife includes a handle 2 and a scraper blade 1, the upper end surface of the scraper blade 1 is connected to the lower end of the handle 2, the scraper blade 1 includes a main body sheet 10 and a front serration group arranged at the front end of the main body sheet 10, the front serration group includes a plurality of front teeth sheets arranged at intervals and arranged in sequence, and a first inter-tooth groove 13 or a second inter-tooth groove 14 penetrating the upper and lower end surfaces of the main body sheet 10 is arranged between adjacent front teeth sheets, the number of the first inter-tooth grooves 13 and the second inter-tooth grooves 14 are both multiple, and at least one first inter-tooth groove 13 is arranged between adjacent second inter-tooth grooves 14, the front ends of the first inter-tooth grooves 13 and the second inter-tooth grooves 14 are both open, and the depth of the second inter-tooth groove 14 sunken into the main body sheet 10 is greater than the depth of the first inter-tooth groove 13 sunken into the main body sheet 10.

[0026] like Figure 1 As shown, the tooth pieces 6 of the sawtooth group of the conventional rubber scraping tooth knife have the same size and shape, are evenly distributed, and the depth of the grooves between the tooth pieces 6 is consistent. Figure 4As shown, when the surface of the base layer 5 on which the tiles 3 are to be laid is uneven, the tile adhesive layer 4 formed after the traditional scraper is applied forms a plurality of raised portions corresponding to the teeth 6. The plurality of raised portions rise and fall with the surface of the base layer 5. The tiles 3 above the lower areas of the base layer 5 cannot contact the tops of the corresponding raised portions, forming hollows. The front serration group of the hybrid scraper of the utility model is provided with a first inter-tooth groove 13 or a second inter-tooth groove 14 between adjacent front teeth, and has a plurality of first inter-tooth grooves 13 and a plurality of second inter-tooth grooves 14. Since the depths of the first inter-tooth grooves 13 and the second inter-tooth grooves 14 are different, a hybrid serration group is formed. Figure 5 As shown, after the mixed type scraping tooth knife is used for scraping, a toothed tile adhesive layer 4 is formed, and the tile adhesive layer 4 forms a plurality of protrusions corresponding to the first inter-tooth groove 13 or the second inter-tooth groove 14. When the surface of the base layer 5 is uneven, since the plurality of protrusions in the lower height area of ​​the base layer 5 are mostly inconsistent in height, some protrusions are higher, and the upper tiles 3 can contact the top of the higher protrusions, that is, the contact area between the tiles 3 and the tile adhesive layer 4 above the lower height area of ​​the base layer 5 is larger than the contact area between the tiles 3 and the tile adhesive layer 4 formed after the traditional tile adhesive is scraped, which increases the effective bonding surface, can effectively reduce the hollowing phenomenon of the tiles 3 during the paving operation, and improves the construction quality. In this embodiment, the cross-sections of the front tooth plate, the first inter-tooth groove 13 and the second inter-tooth groove 14 are all rectangular, which is convenient for the production and use of the scraping tooth knife.

[0027] Furthermore, the plurality of front tooth pieces are respectively the first front tooth piece 11 and the second front tooth piece 12, the front sawtooth group includes the plurality of first front tooth pieces 11 and the plurality of second front tooth pieces 12, at least one first front tooth piece 11 is arranged between two adjacent second front tooth pieces 12, and the width of the second front tooth piece 12 is greater than the width of the first front tooth piece 11. Furthermore, the number of the first inter-tooth grooves 13 arranged between any adjacent second front tooth pieces 12 is the same, which is conducive to the standardization of product production and the standardization of product quality, and makes the product easy to construct, and improves the effective bonding surface between the ceramic tile and the ceramic tile adhesive layer.

[0028] Furthermore, the number of first inter-tooth grooves 13 provided between any two adjacent second inter-tooth grooves 14 is the same, which facilitates standardized production. Furthermore, 1-3 first inter-tooth grooves 13 are provided between any two adjacent second inter-tooth grooves 14. Preferably, in the present embodiment, two first inter-tooth grooves 13 are provided between any two adjacent second inter-tooth grooves 14. The second inter-tooth groove 14 is located between a second front tooth plate 12 and an adjacent first front tooth plate 11. Due to the arrangement of the above structure, it is beneficial to the production and quality control of the hybrid scraper tooth knife, and it is easy to use and highly practical.

[0029] Furthermore, the width of the second inter-tooth groove 14 is greater than the width of the first inter-tooth groove 13. In this embodiment, the width and depth of the second inter-tooth groove 14 are greater than the first inter-tooth groove 13. After the mixed type scraping tooth knife is used for scraping, a toothed tile adhesive layer 4 is formed, and the height and width of the raised portion corresponding to the second inter-tooth groove 14 are higher. When the raised portion corresponding to the second inter-tooth groove 14 is located in a lower height area of ​​the base layer 5, it is helpful to increase the effective bonding area between the tile 3 and the tile 3 adhesive and reduce the occurrence of hollowing phenomenon.

[0030] Furthermore, the depth of the first inter-tooth groove 13 is 2-6mm, and the width of the cross section of the first inter-tooth groove 13 is 2-6mm; the depth of the second inter-tooth groove 14 is 4-8mm, and the width of the cross section of the second inter-tooth groove 14 is 4-8mm. The width of the cross section of the front tooth piece is 2-6mm. Preferably, in this embodiment, the depth of the first inter-tooth groove 13 is 3mm, and the width of the cross section of the first inter-tooth groove 13 is 3mm; the depth of the second inter-tooth groove 14 is 7mm, and the width of the cross section of the second inter-tooth groove 14 is 7mm; the width of the cross section of the first front tooth piece 11 is 3mm, and the width of the cross section of the second tooth piece is 5mm, which is convenient for construction and has a good scraping effect. Technicians in the field of technology can select different specifications of mixed scraping tooth knives according to the ups and downs of the base surface and other construction conditions, and can also design mixed scraping tooth knives of other specifications and sizes according to actual conditions.

[0031] Furthermore, the cross section of the scraper blade 1 is rectangular, and the scraper blade 1 also includes a side sawtooth group arranged at one side end of the main body sheet 10, and the side sawtooth group includes a plurality of side tooth sheets arranged at intervals and arranged in sequence, and a third inter-tooth groove 17 or a fourth inter-tooth groove 18 is arranged between adjacent side tooth sheets, which passes through the upper and lower end surfaces of the main body sheet 10, and the number of the third inter-tooth grooves 17 and the fourth inter-tooth grooves 18 are both multiple, and at least one third inter-tooth groove 17 is arranged between adjacent fourth inter-tooth grooves 18, and the side ends of the third inter-tooth grooves 17 and the fourth inter-tooth grooves 18 are open, that is, away from the side end opening of the main body sheet. In this embodiment, by arranging a side sawtooth group at one side end of the scraper blade 1, the edges of the hybrid scraping tooth knife in both directions can be scraped and coated, thereby improving construction efficiency and convenience.

[0032] Further, the depth of the fourth inter-tooth groove 18 sunken into the main body piece 10 is greater than the depth of the third inter-tooth groove 17 sunken into the main body piece 10. The plurality of front tooth pieces are respectively a first side tooth piece 15 and a second side tooth piece 16, the front sawtooth group includes a plurality of first side tooth pieces 15 and a plurality of second side tooth pieces 16, at least one first side tooth piece 15 is arranged between two adjacent second side tooth pieces 16, and the width of the second side tooth piece 16 is greater than the width of the first front tooth piece 11. The fourth inter-tooth groove 18 is located between a second side tooth piece 16 and an adjacent first side tooth piece 15. In this embodiment, the side sawtooth group is arranged to have the same structure as the front sawtooth group, and the sizes of the first side tooth plate 15, the second side tooth plate 16, the third inter-tooth groove 17 and the fourth inter-tooth groove 18 are respectively the same as the first front tooth plate 11, the second front tooth plate 12, the first inter-tooth groove 13 and the second inter-tooth groove 14. Due to the arrangement of the above structure, the hybrid scraper tooth knife forms two hybrid sawtooth groups, which improves construction efficiency and convenience, and helps to reduce the occurrence of hollowing phenomenon when laying tiles 3.

[0033] Example 2

[0034] The difference between this embodiment and Embodiment 1 is that: in this embodiment, the depth of the first inter-tooth groove 13 is 3mm, and the width of the cross section of the first inter-tooth groove 13 is 3mm; the depth of the second inter-tooth groove 14 is 5mm, and the width of the cross section of the second inter-tooth groove 14 is 5mm; the width of the cross section of the first front tooth plate 11 is 3mm, and the width of the cross section of the second front tooth plate 12 is 4mm.

[0035] Example 3

[0036] The difference between this embodiment and Embodiment 1 is that: in this embodiment, the depth of the first inter-tooth groove 13 is 5 mm, and the width of the cross section of the first inter-tooth groove 13 is 5 mm; the depth of the second inter-tooth groove 14 is 7 mm, and the width of the cross section of the second inter-tooth groove 14 is 7 mm; the width of the cross section of the first front tooth plate 11 is 5 mm, and the width of the cross section of the second front tooth plate 12 is 6 mm.

[0037] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. A hybrid rubber scraping tooth knife, characterized in that: It includes a handle and a scraper blade, the upper end surface of the scraper blade is connected to the lower end of the handle, the scraper blade includes a main body sheet and a front serration group arranged at the front end of the main body sheet, the front serration group includes a plurality of front teeth sheets arranged at intervals and arranged in sequence, a first inter-tooth groove or a second inter-tooth groove penetrating the upper and lower end surfaces of the main body sheet is arranged between adjacent front teeth sheets, the number of the first inter-tooth grooves and the second inter-tooth grooves are both multiple, at least one first inter-tooth groove is arranged between adjacent second inter-tooth grooves, the front ends of the first inter-tooth grooves and the second inter-tooth grooves are both open, and the depth of the second inter-tooth groove sunken into the main body sheet is greater than the depth of the first inter-tooth groove sunken into the main body sheet.

2. The hybrid rubber scraping tooth blade according to claim 1, characterized in that: The multiple front tooth plates are respectively the first front tooth plates and the second front tooth plates, the front serration group includes multiple first front tooth plates and multiple second front tooth plates, at least one first front tooth plate is arranged between any two adjacent second front tooth plates, and the width of the second front tooth plate is greater than that of the first front tooth plate.

3. The hybrid rubber scraping tooth blade according to claim 1, characterized in that: The cross sections of the front tooth plate, the first inter-tooth groove and the second inter-tooth groove are all rectangular.

4. The hybrid rubber scraping tooth blade according to claim 3, characterized in that: The width of the second inter-tooth groove is greater than the width of the first inter-tooth groove.

5. The hybrid rubber scraping tooth blade according to claim 1, characterized in that: The number of the first inter-tooth grooves arranged between any two adjacent second inter-tooth grooves is the same.

6. The hybrid rubber scraping tooth blade according to claim 2, characterized in that: One to three first inter-tooth grooves are arranged between any two adjacent second inter-tooth grooves, and the second inter-tooth grooves are located between a second front tooth plate and an adjacent first front tooth plate.

7. The hybrid rubber scraping tooth blade according to claim 3, characterized in that: The depth of the first inter-tooth groove is 2-6 mm, and the width of the cross section of the first inter-tooth groove is 2-6 mm; the depth of the second inter-tooth groove is 4-8 mm, and the width of the cross section of the second inter-tooth groove is 4-8 mm.

8. The hybrid rubber scraping tooth blade according to claim 3, characterized in that: The width of the cross section of the front tooth piece is 2-6 mm.

9. The hybrid rubber scraping tooth blade according to claim 1, characterized in that: The cross-section of the scraper blade is rectangular, and the scraper blade also includes a side serration group arranged at one side end of the main body sheet, the side serration group includes a plurality of side tooth sheets arranged at intervals and arranged in sequence, and a third inter-tooth groove or a fourth inter-tooth groove penetrating the upper and lower end surfaces of the main body sheet is provided between adjacent side tooth sheets, the number of the third inter-tooth grooves and the fourth inter-tooth grooves are both multiple, and at least one third inter-tooth groove is provided between adjacent fourth inter-tooth grooves, and the side ends of the third inter-tooth grooves and the fourth inter-tooth grooves are open.

10. The hybrid rubber scraping tooth blade according to claim 9, characterized in that: The depth of the fourth inter-tooth groove sunken into the main body sheet is greater than the depth of the third inter-tooth groove sunken into the main body sheet.

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