Sawtooth-shaped cement plastering shovel with scraping plate

Abstract

A sawtooth-shaped cement plastering shovel with a scraping plate comprises a shovel body, a pair of corresponding side plates are arranged on the two sides of the shovel body, the front ends of the two side plates are fixedly connected to the corresponding side edges of the shovel body respectively, handle holes facilitating grabbing are formed in the side plates, a mortar storage space is formed between the two side plates and the shovel body, and a mortar outlet is formed in the bottom end of the shovel body. And a scraping plate capable of adjusting the size of the slurry outlet is arranged at the slurry outlet. The cement mortar paving device can effectively control the paving amount of cement mortar, and is higher in paving speed, higher in efficiency and better in quality.

Description

Technical Field

[0001] This utility model belongs to the field of construction equipment technology, and in particular relates to a serrated cement plastering trowel with a scraper. Background Technology

[0002] Plastering trowels are commonly used tools in building decoration. They are mainly operated manually for wall plastering and leveling. However, when using plastering trowels, construction workers often have to rely on their experience to estimate the amount of mortar to be laid. Plastering trowels cannot effectively control the amount of mortar to be laid, which often results in large errors and excessive mortar application. This not only affects the quality and speed of construction, but also causes a lot of unnecessary waste and increases the cost of the project. Utility Model Content

[0003] The purpose of this utility model is to provide a plastering trowel that can control the amount of mortar flowing out, so as to solve the technical problem that existing plastering trowels cannot effectively control the amount of mortar laid.

[0004] To achieve the above objectives, the specific technical solution of this utility model is as follows:

[0005] A serrated cement plastering shovel with a scraper includes a shovel body, with a pair of corresponding side plates on both sides of the shovel body. The front ends of the side plates are fixedly connected to the corresponding sides of the shovel body. The side plates are provided with handle holes for easy gripping. A grout storage space is formed between the side plates and the shovel body. A grout outlet is provided at the bottom of the shovel body, and a scraper with adjustable size is provided at the grout outlet.

[0006] Furthermore, the bottom end of the shovel body is provided with a first toothed plate, and multiple first toothed plates are evenly distributed at the bottom end of the shovel body to form a sawtooth shape with alternating heights. The top end of the first toothed plate is fixedly connected to the bottom surface of the shovel body, and the gap between adjacent first toothed plates is the slurry outlet.

[0007] Furthermore, the lower part of the shovel body has a corresponding interlayer cavity above the first toothed plate, and the top of the slurry outlet has a lower opening communicating with the interlayer cavity. Multiple lower openings are evenly distributed on the bottom surface of the interlayer cavity. The scraper includes a plate body and a second toothed plate, wherein the plate body is located in the interlayer cavity, and multiple second toothed plates are evenly distributed at the bottom of the plate body. Each second toothed plate corresponds to a lower opening, and its top end is fixedly connected to the bottom surface of the scraper. The lower end of the second toothed plate extends toward the slurry outlet through the corresponding lower opening. The corresponding sides of the second toothed plate and the two adjacent first toothed plates are in contact with each other. The second toothed plate is slidably connected to the lower opening and the first toothed plate. A corresponding adjustment device is provided above the plate body.

[0008] Furthermore, the upper part of the shovel body is provided with an adjustment groove, and the bottom surface of the adjustment groove is provided with a through hole communicating with the inner cavity of the interlayer. The adjustment device includes a connecting rod corresponding to the through hole. The connecting rod is located above the scraper, its bottom end is fixedly connected to the top surface of the scraper, and its top end protrudes from the through hole into the adjustment groove. The top end of the outer side wall of the connecting rod is provided with an external thread, and an adjustment nut corresponding to the connecting rod is provided above the through hole, which is fitted onto the connecting rod.

[0009] Furthermore, a guide rod is provided at the top of the connecting rod, and guide grooves corresponding to the guide rod are provided on the two corresponding side walls of the adjusting groove. The two ends of the guide rod are respectively inserted into the guide grooves on the corresponding sides, and the two are slidably connected.

[0010] Furthermore, the bottom of the rear side of the shovel and scraper is an inclined surface that gradually slopes forward from top to bottom, and the rear side of the first toothed plate and the second toothed plate have the same inclination angle.

[0011] Furthermore, the handle hole is located at the rear of the side wall of the corresponding side plate.

[0012] This utility model, a serrated cement trowel with a scraper, transforms the traditional manual estimation-based mortar laying into controlled-quantity laying through the cooperation of the first toothed plate and the scraper. This effectively controls the height of the mortar layer, not only increasing the laying speed but also resulting in a more uniform and dense spread. It reduces mortar waste, improves construction quality and speed, and is simple in structure, easy to use, and suitable for various wet-laying construction methods. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a half-section of the present invention;

[0014] Figure 2 This utility model Figure 1 A cross-sectional view along the AA direction;

[0015] Figure 3 This utility model Figure 1 Cross-sectional view along the BB direction;

[0016] The markings in the diagram are as follows: 1. Shovel body; 11. First toothed plate; 12. Inclined surface; 2. Side plate; 21. Handle hole; 3. Slurry outlet; 4. Interlayer cavity; 41. Lower opening; 5. Adjusting groove; 51. Through hole; 52. Guide groove; 6. Scraper; 61. Plate body; 62. Second toothed plate; 7. Adjusting device; 71. Connecting rod; 72. Adjusting nut; 8. Guide rod. Detailed Implementation

[0017] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of a serrated cement plastering trowel with a scraper.

[0018] like Figure 1-3 As shown, the serrated cement plastering shovel with scraper of this utility model includes a shovel body 1. A pair of corresponding side plates 2 are provided on both sides of the shovel body 1. The front ends of the two side plates 2 are respectively connected to the corresponding side of the shovel body 1. The shovel body 1 and the two side plates 2 are integrally formed and fixedly connected. The side plates 2 are provided with handle holes 21 for easy gripping by the user. The open space between the two side plates 2 and the shovel body 1 is the mortar storage space of the plastering shovel. When in use, the mortar is pre-stored in the mortar storage space. The bottom end of the shovel body 1 is provided with a mortar outlet 3. The mortar in the mortar storage space flows out through the mortar outlet.

[0019] Furthermore, the bottom end of the shovel body 1 is provided with a first toothed plate 11. Multiple first toothed plates 11 are evenly distributed from left to right at the bottom end of the shovel body 1. The top of the first toothed plate 11 is connected to the bottom surface of the shovel body 1. The two are integrally formed and fixedly connected. The first toothed plate 11 makes the bottom end of the shovel body 1 form a sawtooth shape with high and low staggered teeth. The gap between adjacent first toothed plates 11 is the slurry outlet 3. The bottom surface of the two side plates 2 is on the same plane as the lowest end of the shovel body 1. When in use, the mortar in the slurry storage space flows out from the slurry outlet 3 at the bottom end of the shovel body 1. The sawtooth shape makes it easier to control the amount of mortar flowing out.

[0020] Furthermore, a corresponding interlayer cavity 4 is provided above the first toothed plate 11 at the lower part of the shovel body 1. The top of the slurry outlet 3 is provided with a lower opening 41 communicating with the interlayer cavity 4. Multiple lower openings 41 are evenly distributed on the bottom surface of the interlayer cavity 4. The scraper 6 includes a plate body 61 and a second toothed plate 62, wherein the plate body 61 is provided in the interlayer cavity 4, and multiple second toothed plates 62 are evenly distributed at the bottom of the plate body 61, corresponding one by one to multiple lower openings 41 at the bottom of the shovel body 1. The top of the second toothed plate 62 is connected to the bottom surface of the plate body 61. The two are integrally formed and fixedly connected. The lower ends of each second toothed plate 62 extend toward the slurry outlet 3 through the corresponding lower opening 41. The second toothed plate 62 is slidably connected to the corresponding lower opening 41. The corresponding sides of the second toothed plate 62 and the two adjacent first toothed plates 11 are in contact with each other and are slidably connected. The height of the second toothed plate 62 is not less than that of the first toothed plate 11. A corresponding adjustment device 7 is provided above the plate body 61. The adjustment device 7 can move the second toothed plate 62 up and down through the plate body 61, thereby adjusting the height of its extension toward the slurry outlet 3, and thus adjusting the slurry output of the slurry outlet 3.

[0021] The upper middle part of the shovel body 1 is provided with a through-hole 5. The bottom surface of the adjustment groove 5 is provided with a through hole 51 communicating with the inner cavity 4 of the interlayer. The adjustment device 7 includes a connecting rod 71, which is located above the scraper 6. Its top end corresponds to the through hole 51. In this embodiment, the connecting rod 71 is located in the middle of the top surface of the plate 61. Its bottom end is fixedly connected to the top surface of the plate 61, and its top end protrudes from the through hole 51 into the adjustment groove 5. The top of the outer wall of the connecting rod 71 is provided with an external thread. The top of the through hole 51 is provided with a corresponding thread. The corresponding adjusting nut 72 is fitted onto the connecting rod 71. The inner ring side wall of the adjusting nut 72 is provided with an internal thread corresponding to the connecting rod 71. By cooperating with the adjusting nut 72 and the connecting rod 71, the height of the connecting rod 71 extending into the adjusting groove 5 can be adjusted. By moving the connecting rod 71 up and down, it can drive the second toothed plate 62 to move up and down through the plate 61, thereby changing the extension height of the second toothed plate 62 in the slurry outlet 3, and thus changing the slurry discharge height of the slurry outlet 3. In this way, the control of the slurry discharge height and slurry discharge volume at the bottom of the shovel body 1 is realized.

[0022] Furthermore, a guide rod 8 is provided at the top of the connecting rod 71, and guide grooves 52 corresponding to the guide rod 8 are provided on the left and right side walls of the adjusting groove 5. The two ends of the guide rod 8 are respectively inserted into the guide grooves 52 on the corresponding sides, and the two are slidably connected. The mutual cooperation between the two provides a guiding effect for the up and down movement of the connecting rod 71.

[0023] Furthermore, the bottom of the rear side of the shovel body 1 and the scraper 6 is a slope 12 that gradually slopes forward from top to bottom. This arrangement facilitates the smooth flow of mortar from the mortar outlet at the bottom of the shovel body 1. In this embodiment, the rear side of the first toothed plate 11 and the second toothed plate 62 is set as a slope 12 with the same inclination angle.

[0024] Furthermore, the handle hole 21 is located at the rear of the side wall of the corresponding side plate 2, which facilitates the user to drag and apply force, and also allows the mortar storage space to store more mortar during use.

[0025] In use, first, rotate the adjusting nut 72. Through its interaction with the connecting rod 71, adjust the height of the second toothed plate 62 in the mortar outlet 3 according to the required mortar thickness. The space from the bottom of the second toothed plate 62 to the bottom of the mortar outlet 3 is the actual mortar flow outlet. Then, place the trowel in the starting position above the construction surface, with the bottom of the trowel against the construction surface. Next, pre-store an appropriate amount of mortar in the mortar storage space. At this time, the operator can apply force to the trowel through the handle hole 21 and drag it backward. During this process, the mortar in the mortar storage space continuously flows forward through the mortar outlet below the second toothed plate 62. During the laying process, the operator can replenish mortar to the mortar storage space as needed until the construction surface is completely laid, thus evenly laying the required mortar layer on the construction surface.

[0026] This utility model features a serrated cement trowel with a scraper. Its simple structure and ease of use, along with the scraper 6 and the second toothed plate 62, allow for flexible adjustment and control of the cement mortar layer height as needed. This effectively reduces the error rate in mortar laying, minimizes the chance of over-laying, and results in faster, more uniform, and denser mortar spreading. This improves the quality of mortar laying, reduces waste, and lowers project costs.

[0027] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A serrated cement plastering trowel with a scraper, characterized in that, It includes a shovel body (1), with a pair of corresponding side plates (2) on both sides of the shovel body (1). The front ends of the two side plates (2) are fixedly connected to the corresponding side of the shovel body (1). The side plates (2) are provided with handle holes (21) for easy gripping. A slurry storage space is formed between the two side plates (2) and the shovel body (1). The bottom end of the shovel body (1) is provided with a slurry outlet (3), and a scraper (6) whose size can be adjusted is provided at the slurry outlet (3).

2. The serrated cement plastering trowel with scraper according to claim 1, characterized in that, The bottom end of the shovel body (1) is provided with a first toothed plate (11). Multiple first toothed plates (11) are evenly distributed at the bottom end of the shovel body (1) to form a sawtooth shape with alternating high and low teeth. The top end of the first toothed plate (11) is fixedly connected to the bottom surface of the shovel body (1). The gap between adjacent first toothed plates (11) is the slurry outlet (3).

3. The serrated cement plastering trowel with scraper according to claim 2, characterized in that, The shovel body (1) has a corresponding interlayer cavity (4) above the first toothed plate (11) at the lower part. The top of the slurry outlet (3) has a lower opening (41) communicating with the interlayer cavity (4). Multiple lower openings (41) are evenly distributed on the bottom surface of the interlayer cavity (4). The scraper (6) includes a plate body (61) and a second toothed plate (62), wherein the plate body (61) is located in the interlayer cavity (4), and multiple second toothed plates (62) are evenly distributed at the bottom of the plate body (61). The plate (62) corresponds to the lower opening (41) one by one, and its top end is fixedly connected to the bottom surface of the scraper (6). The lower end of the second toothed plate (62) extends to the slurry outlet (3) through the corresponding lower opening (41). The corresponding sides of the second toothed plate (62) and the two adjacent first toothed plates (11) are in contact with each other. The second toothed plate (62) is slidably connected to the lower opening (41) and the first toothed plate (11). A corresponding adjustment device (7) is provided above the plate body (61).

4. The serrated cement plastering trowel with scraper according to claim 3, characterized in that, The upper part of the shovel body (1) is provided with an adjustment groove (5). The bottom surface of the adjustment groove (5) is provided with a through hole (51) that communicates with the inner cavity (4) of the interlayer. The adjustment device (7) includes a connecting rod (71) corresponding to the through hole (51). The connecting rod (71) is located above the scraper (6). Its bottom end is fixedly connected to the top surface of the scraper (6). Its top end passes through the through hole (51) into the adjustment groove (5). The top of the outer wall of the connecting rod (71) is provided with an external thread. An adjustment nut (72) corresponding to the connecting rod (71) is provided above the through hole (51) and is fitted on the connecting rod (71).

5. The serrated cement plastering trowel with scraper according to claim 4, characterized in that, The top of the connecting rod (71) is provided with a guide rod (8), and the two corresponding side walls of the adjusting groove (5) are provided with guide grooves (52) corresponding to the guide rod (8). The two ends of the guide rod (8) are respectively inserted into the guide grooves (52) on the corresponding sides, and the two are slidably connected.

6. The serrated cement plastering trowel with scraper according to claim 3, characterized in that, The bottom of the rear side of the shovel (1) and scraper (6) is an inclined surface (12) that gradually slopes forward from top to bottom, and the rear side of the first toothed plate (11) and the second toothed plate (62) have the same inclination angle.

7. The serrated cement plastering trowel with scraper according to claim 1, characterized in that, The handle hole (21) is located at the rear of the side wall of the corresponding side plate (2).

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