Fixed-angle tooth-shaped spatula

Abstract

The utility model relates to the technical field of spatula, and provides a fixed-angle tooth-shaped spatula which comprises a sliding base, a spatula body and a spatula body. The supporting plate is arranged on the sliding base, and the supporting plate is provided with a mounting surface which is obliquely arranged; the spatula fixer is arranged on the mounting surface and is provided with a mounting groove, and the mounting groove is used for fixing a spatula. According to the technical scheme, the problem that the test result of the tensile bonding strength of the adhesive cannot be intuitively understood due to a certain error caused by the difference of the included angle and the force between the spatula and the concrete slab due to the difference of the techniques of testers in the related technology is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of spatulas, and in particular to a fixed-angle toothed spatula. Background Art

[0002] A serrated trowel is a crucial testing instrument during ceramic tile adhesive testing. The adhesive specified in the current ceramic tile adhesive standard, after being stirred according to the prescribed experimental procedures, needs to be applied to the edge of the concrete slab using a serrated trowel at approximately a 60-degree angle parallel to the concrete slab. However, existing serrated trowels have drawbacks during testing. Differences in tester technique can lead to variations in the angle and force between the trowel and the concrete slab, resulting in errors in the test results. This makes it impossible to intuitively understand the tensile bond strength test results of the adhesive, failing to meet user expectations. Utility Model Content

[0003] The utility model proposes a fixed-angle toothed trowel, which solves the problem in the related art that due to differences in the testers' techniques, there are differences in the angle and force between the trowel and the concrete slab, which will lead to certain errors in the test results and it will be impossible to intuitively understand the test results of the tensile bond strength of the adhesive.

[0004] The technical solution of the utility model is as follows:

[0005] A fixed-angle toothed spatula comprising:

[0006] Sliding base;

[0007] A support plate is provided on the sliding base, and the support plate has an inclined mounting surface;

[0008] The spatula holder is arranged on the mounting surface, and the spatula holder has a mounting groove, and the mounting groove is used to fix the spatula.

[0009] Optionally, the sliding base includes:

[0010] There are a plurality of fixing plates, the fixing plates are symmetrically arranged, and each fixing plate has a plurality of grooves;

[0011] There are a plurality of sliding casters, each of which is rotatably disposed in one of the grooves, and the sliding casters are located at the corners of each of the fixed plates.

[0012] Optionally, the spatula holder comprises:

[0013] A card strip, the card strip is U-shaped, the mounting slot is located inside the card strip, and the upper surface of the card strip has a through slot;

[0014] A fastening bolt is threadedly connected in the through slot. After the spatula is installed in the installation slot, the fastening bolt is used to drive the clamping strip to press the spatula.

[0015] Optionally, the clamping strip has an opening, and the opening of the clamping strip is directed toward one side of the fixing plate.

[0016] Optionally, the support plate is triangular, and the mounting surface and the fixing plate are arranged at an angle.

[0017] Optionally, the spatula has a toothed portion, and the toothed portion faces one side of the fixed plate.

[0018] Optionally, also include:

[0019] A pull rod is provided on the clamping strip, and the pull rod is used to pull the clamping strip.

[0020] Optionally, there are a plurality of support plates, and each of the fixed plates is provided with one support plate, further comprising:

[0021] A connecting rod is arranged between the two symmetrically arranged support plates, one end of the connecting rod is arranged on one of the symmetrically arranged support plates, and the other end of the connecting rod is symmetrically arranged on the other support plate. The connecting rod is used to connect the two support plates into a whole.

[0022] Optionally, the spatula has a gripping portion, and the gripping portion faces one side of the upper surface of the clip strip.

[0023] The working principle and beneficial effects of the utility model are as follows:

[0024] When conducting a tensile bond strength test of a ceramic tile adhesive, the utility model first evenly spreads the stirred adhesive on the concrete slab. Then, the sliding base of the fixed-angle toothed trowel is placed on the concrete slab, and the position of the trowel is adjusted to align it with the edge of the concrete slab. Hold the trowel holder and gently push the sliding base to slide the trowel on the concrete slab at a uniform speed, and spread the adhesive to the edge of the concrete slab. Since the angle between the mounting surface of the trowel holder and the sliding base is 60°, the angle between the trowel and the concrete slab is always maintained at 60°, ensuring the consistency and accuracy of the test operation. By providing the sliding base, the support plate and the trowel holder, it can be ensured that the angle between the trowel and the concrete slab is always maintained at 60°, avoiding the problem of inconsistent angles and forces due to differences in the test personnel's techniques, thereby improving the accuracy and reliability of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The preferred embodiments will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0026] Figure 1 This is a schematic diagram of the front structure of the spatula of the utility model;

[0027] Figure 2 This is a schematic diagram of the back structure of the spatula of the utility model.

[0028] In the figure: 1. Sliding base; 101. Fixing plate; 1011. Groove; 102. Sliding caster; 2. Support plate; 201. Mounting surface; 3. Spatula; 301. Grip; 302. Toothed portion; 4. Spatula holder; 401. Clip; 4011. Mounting groove; 402. Fastening bolt; 403. Through groove; 404. Opening; 5. Pull rod; 6. Connecting rod. DETAILED DESCRIPTION

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without inventive work.

[0030] To simplify the drawings, only the parts relevant to the utility model are schematically shown in each figure; they do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one of the components with the same structure or function is schematically shown or labeled. In this document, "one" not only means "only one" but also "more than one," and "several" includes "two" and "more than two."

[0031] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0032] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0033] Reference Figure 1~Figure 2, which is the first embodiment of the utility model, proposes a fixed-angle toothed spatula, including: a sliding base 1; a support plate 2, arranged on the sliding base 1, the support plate 2 has an inclined mounting surface 201; a spatula holder 4, arranged on the mounting surface 201, the spatula holder 4 has a mounting groove 4011, and the mounting groove 4011 is used to fix the spatula 3.

[0034] In the above scheme, the mounting surface 201 of the support plate 2 is arranged at an angle of 60° with the sliding base 1 to ensure that when the trowel holder 4 is installed on the mounting surface 201, the angle between the trowel 3 and the concrete slab is always maintained at 60°. The trowel holder 4 is mounted on the mounting surface 201 of the support plate 2 and is made of high-strength plastic or metal. The trowel holder 4 has a mounting groove 4011, the shape and size of which match the toothed trowel 3 and can firmly fix the trowel 3. When installing the trowel 3, the trowel 3 is inserted into the mounting groove 4011, ensuring that the teeth of the trowel 3 face downward and contact the concrete slab. Then, the trowel 3 is firmly fixed in the trowel holder 4 by tightening the fixing screws or other fixing methods.

[0035] Instructions for use: When conducting a tensile bond strength test of ceramic tile adhesive, first apply the stirred adhesive evenly on the concrete slab. Then, place the sliding base 1 of the fixed-angle toothed spatula 3 on the concrete slab, and adjust the position of the spatula 3 so that it is aligned with the edge of the concrete slab. Hold the spatula holder 4 and gently push the sliding base 1 so that the spatula 3 slides at a constant speed on the concrete slab, applying the adhesive to the edge of the concrete slab. Since the angle between the mounting surface 201 of the spatula holder 4 and the sliding base 1 is 60°, the angle between the spatula 3 and the concrete slab is always maintained at 60°, ensuring the consistency and accuracy of the test operation.

[0036] The fixed-angle toothed trowel 3 provided in this embodiment can ensure that the angle between the trowel 3 and the concrete slab is always maintained at 60° by providing a sliding base 1, a support plate 2 and a trowel holder 4, thereby avoiding the problem of inconsistent angle and force due to differences in the test personnel's techniques, and improving the accuracy and reliability of the test results.

[0037] Furthermore, the sliding base 1 includes: a plurality of fixed plates 101, which are symmetrically arranged, and each fixed plate 101 has a plurality of grooves 1011; a plurality of sliding casters 102, each sliding caster 102 is rotatably set in a groove 1011, and the sliding casters 102 are located at the corners of each fixed plate 101.

[0038] In the above scheme, the sliding base 1 provides support and a mobile platform for the entire fixed-angle toothed trowel 3. The rolling of the sliding casters 102 on the concrete slab allows the trowel 3 to be easily moved across the concrete slab, completing the adhesive application operation. Together with the support plate 2 and trowel holder 4, they ensure the stability and angle accuracy of the trowel 3 during use. The symmetrically arranged fixed plates 101 and the sliding casters 102 located at the corners provide the sliding base 1 with excellent stability and balance, ensuring stability during operation and reducing the impact of shaking on test results.

[0039] Furthermore, the spatula holder 4 includes: a clamping strip 401, which is U-shaped, and the mounting groove 4011 is located in the clamping strip 401, and the upper surface of the clamping strip 401 has a through groove 403; a fastening bolt 402, which is threadedly connected in the through groove 403. After the spatula 3 is installed in the mounting groove 4011, the fastening bolt 402 is used to drive the clamping strip 401 to press the spatula 3.

[0040] In the above embodiment, the spatula holder 4 consists of a U-shaped clip 401 and a fastening bolt 402. The clip 401 has a mounting slot 4011 for accommodating the spatula 3 and a through-slot 403 on its upper surface. The fastening bolt 402 is threaded into the through-slot 403. Once the spatula 3 is installed in the mounting slot 4011, the fastening bolt 402 rotates to drive the clip 401 to compress the spatula 3. The U-shaped clip 401 provides a stable mounting space for the spatula 3, while the mounting slot 4011 ensures accurate placement of the spatula 3. Furthermore, the fastening bolt 402, threaded into the through-slot 403, is easy to operate and can be adjusted to accommodate spatulas of varying sizes, enhancing the versatility and applicability of the holder.

[0041] Furthermore, the clamping strip 401 has an opening 404 , and the opening 404 of the clamping strip 401 is oriented toward one side of the fixing plate 101 .

[0042] In the above embodiment, the opening 404 faces the side of the fixing plate 101, making installation of the spatula 3 more convenient and quick. The tester can easily insert the spatula 3 into the mounting slot 4011 of the retaining strip 401 from a specific orientation, eliminating the need for complex operations and improving installation efficiency. During the test, the retaining strip 401, in conjunction with the fastening bolts 402, can reduce the impact of loosening or shaking of the spatula 3 on the test results. The presence of the opening 404 ensures that the retaining strip 401 fits tightly against the surface of the spatula 3, ensuring the accuracy and reliability of the test results.

[0043] Furthermore, the support plate 2 is triangular in shape, and the mounting surface 201 and the fixing plate 101 are arranged obliquely.

[0044] In the above scheme, the triangular support plate 2 can achieve a fixed angle. The tilted mounting surface 201 ensures that the trowel 3 forms a specific angle with the concrete slab. In ceramic tile adhesive testing, the trowel 3 is required to be parallel to the concrete slab at approximately 60°, extending to the edge of the slab. By tilting the mounting surface 201, the trowel holder 4 is installed on the mounting surface 201, ensuring that the angle between the trowel 3 and the concrete slab remains at 60°, thus meeting the test requirements.

[0045] Furthermore, the spatula 3 has a toothed portion 302 , and the toothed portion 302 faces one side of the fixed plate 101 .

[0046] In the above scheme, the teeth 302 face the side of the fixed plate 101, allowing the tester to more clearly see the contact between the teeth 302 and the concrete slab when using the fixed-angle toothed trowel 3, facilitating control of the force and direction of application. The teeth 302 face the side of the fixed plate 101, allowing for better coordination with the clip 401 and fastening bolts 402, ensuring the stability of the trowel 3 within the mounting slot 4011. During the test, the reaction force exerted on the teeth 302 is transmitted through the trowel 3 to the clip 401 and fastening bolts 402. This orientation optimizes force transmission and improves the overall stability of the device. The teeth 302 face the side of the fixed plate 101, allowing the adhesive to more quickly cover the edge of the concrete slab during application. Since the fixed plate 101 is typically located on one side of the concrete slab, the teeth 302 facing the fixed plate 101 allow the trowel 3 to approach the edge of the concrete slab during application, reducing the number and time of application passes and improving test efficiency.

[0047] Furthermore, the apparatus further comprises a pull rod 5 , which is provided on the clamping strip 401 and is used to pull the clamping strip 401 , so that the tester can open the opening 404 by the pull rod 5 .

[0048] Furthermore, there are several support plates 2, and each fixed plate 101 is provided with a support plate 2, and also includes: a connecting rod 6, which is arranged between two symmetrically arranged support plates 2, one end of the connecting rod 6 is arranged on a symmetrically arranged support plate 2, and the other end of the connecting rod 6 is symmetrically arranged on the other support plate 2, and the connecting rod 6 is used to connect the two support plates 2 into a whole.

[0049] In the above scheme, there are multiple support plates 2, one of which is mounted on each fixed plate 101. The scheme also includes a connecting rod 6, which is arranged between two symmetrically arranged support plates 2. One end of the connecting rod 6 is mounted on one symmetrically arranged support plate 2, and the other end of the connecting rod 6 is mounted symmetrically on the other support plate 2. The connecting rod 6 is used to connect the two support plates 2 into a single unit. The presence of the connecting rod 6 strengthens the structure of the entire device. It not only connects the two support plates 2 but also shares some of the forces acting on the trowel 3 and the concrete slab. During testing, the connecting rod 6 was able to withstand a certain amount of tension and compression, thereby reducing the load on the support plates 2 and extending their service life.

[0050] Furthermore, the spatula 3 has a gripping portion 301, which faces the upper surface of the clamping strip 401, making it easier for the tester to hold it.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A fixed angle toothed spatula, characterized in that: include: Sliding base (1); A support plate (2) is arranged on the sliding base (1), and the support plate (2) has an inclined mounting surface (201); The spatula holder (4) is arranged on the mounting surface (201), and the spatula holder (4) has a mounting groove (4011), and the mounting groove (4011) is used to fix the spatula (3).

2. A fixed-angle toothed spatula according to claim 1, characterized in that: The sliding base (1) comprises: There are a plurality of fixing plates (101), wherein the fixing plates (101) are symmetrically arranged, and each fixing plate (101) has a plurality of grooves (1011); There are a plurality of sliding casters (102), each of which is rotatably disposed in one of the grooves (1011), and the sliding casters (102) are located at corners of each of the fixed plates (101).

3. A fixed-angle toothed spatula according to claim 2, characterized in that: The spatula holder (4) comprises: A card strip (401), the card strip (401) is U-shaped, the mounting groove (4011) is located in the card strip (401), and the upper surface of the card strip (401) has a through groove (403); The fastening bolt (402) is threadedly connected to the through groove (403). After the spatula (3) is installed in the installation groove (4011), the fastening bolt (402) is used to drive the clamping strip (401) to press the spatula (3).

4. A fixed-angle toothed spatula according to claim 3, characterized in that: The clamping strip (401) has an opening (404), and the opening (404) of the clamping strip (401) is oriented toward one side of the fixing plate (101).

5. The fixed-angle toothed spatula according to claim 2, characterized in that: The support plate (2) is triangular in shape, and the mounting surface (201) and the fixing plate (101) are arranged at an angle.

6. A fixed-angle toothed spatula according to claim 2, characterized in that: The spatula (3) has a toothed portion (302), and the toothed portion (302) faces one side of the fixed plate (101).

7. The fixed-angle toothed spatula according to claim 3, characterized in that: Also includes: A pull rod (5) is provided on the clamping strip (401), and the pull rod (5) is used to pull the clamping strip (401).

8. The fixed-angle toothed spatula according to claim 2, characterized in that: There are a plurality of support plates (2), and each of the fixed plates (101) is provided with one support plate (2), and further comprising: A connecting rod (6) is arranged between the two symmetrically arranged support plates (2), one end of the connecting rod (6) is arranged on one of the symmetrically arranged support plates (2), and the other end of the connecting rod (6) is symmetrically arranged on the other support plate (2), and the connecting rod (6) is used to connect the two support plates (2) into a whole.

9. The fixed-angle toothed spatula according to claim 3, characterized in that: The spatula (3) has a gripping portion (301), and the gripping portion (301) faces one side of the upper surface of the clamping strip (401).

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