Slurry joint scraper with built-in blade

Abstract

The utility model discloses a blade built-in type mud joint scraper, which comprises a main body, a blade, a protective sleeve and a compression plate, the main body comprises a front end and a handle part, the blade is fixed at the front end of the main body, the protective sleeve is sleeved at the front end of the main body fixed with the blade in a surrounding manner, and the compression plate is fixed on the front end of the main body. The front end of the protective sleeve is provided with a thin seam allowing the blade to pass through, a pull rope is fixed to the protective sleeve, and the pull rope is pulled by compressing the compression plate, so that the protective sleeve is withdrawn, and the blade at the front end of the body is exposed and used for scraping the seam. And when not in use, the blade can be well sleeved by the protective sleeve, so that articles or carriers are prevented from being scratched.

Description

Technical Field

[0001] The utility model belongs to the technical field of indoor decoration tools, in particular to a mud scraper with a built-in blade. Background Art

[0002] A grout scraper, also known as a "tile caulking knife" or "mortar grouting tool," is a professional tool used to fill gaps and smooth grout when laying decorative materials such as tiles or stone. Typically made of high-quality stainless steel, it consists of a flat, wide blade and a handle. The blade's carefully designed edge not only presses caulking material into tile gaps but also scrapes away excess grout, ensuring even, smooth, and aesthetically pleasing filling.

[0003] During the tile laying construction process, first use a mud scraper to evenly fill the cement mortar or special caulking agent into the tile gaps, and then use a leveling action to make it flush with the tile surface or form the desired concave and convex effect. Finally, after the caulking material dries, subsequent cleaning and maintenance work can be carried out.

[0004] Existing mud scrapers mostly have sharp edges and corners for scraping off some mud, and such mud scrapers have sharp edges and corners that can easily damage the bag being stored or injure the user during daily carrying or placement. Summary of the Invention

[0005] The utility model addresses the deficiencies of the prior art and provides a mud scraper with a built-in blade. The mud scraper with a built-in blade is covered by a protective shell when not in use. When in use, the protective shell is retracted by manually pinching a telescopic plate to expose the blade for scraping the seam.

[0006] In order to solve the above technical problems, the present invention solves the problem through the following technical solutions: a mud scraper with built-in blade, comprising a main body, a blade, a protective cover and a compression plate, the main body comprising a front end and a handle part, the blade being fixed to the side of the front end of the main body, the protective cover surrounding the front end of the main body to which the blade is fixed, the front end of the protective cover being provided with a slit through which the blade can pass, a window being provided behind the blade on the main body, the end of the protective cover being connected at the window and fixed by a spring at the end of the protective cover at the window, the spring being compressed in the window, the other end of the window away from the protective cover being provided with a hole, a shift lever being provided behind the hole, and the shift lever being provided with a The section passes through a slide groove on the main body, and the shift rod is provided with a limited shift button at the top end exposed to the outside of the main body. The shift rod is provided with a support rod inside the main body, and the support rod passes through the hole. The shift rod is provided with a through hole corresponding to the support rod. A pull rope is provided on the protective cover, and the pull rope passes through the through hole and is fixed to a slider by bypassing the first guide component and the second guide component. The slider is located in a strip groove inside the handle part of the main body and is slidably connected to the strip groove. The handle part of the main body is provided with the compression plate, and the front end of the compression plate is rotatably connected to the main body. Two protrusions are symmetrically provided on both sides of the compression plate, and the protrusions are limited to an arc-shaped groove in the handle part of the main body. With this structure, when in use, the toggle button is first moved back along the slide slot, which in turn moves the toggle lever and the support lever back. At this point, the protective cover is supported by the spring and does not move. When scraping, the handle of the main body is gripped. During the scraping process, the user exerts force, thereby gripping the compression plate. The compression plate compresses toward the interior of the main body, pushing the slider backward in the strip slot, thereby pulling the pull cord and pulling the protective cover backward to expose the blade. When scraping is finished, the compression plate is released. Under the action of the spring, the protective cover is pushed to the front of the window, returning to its original state. At the same time, the pull cord is pulled to restore the slider and the compression plate.

[0007] In the above technical solution, preferably, the toggle rod is fixed to the rear end of the toggle button, and the end of the slide away from the blade is rotatably connected to a locking ring on the main body, and the length of the locking ring is consistent with the length of the toggle button. With this structure, when the seam scraper is not in use, the toggle button is pushed forward, and then the locking ring is pressed down to support the toggle button. This can prevent the protective cover from being accidentally pressed backward and exposing the blade after the toggle button is displaced when not in use. In addition, when in use, the locking ring is lifted, and then the toggle button is slid backward to the end of the slide, and then the locking ring is pressed down to buckle the front end of the toggle button, so that the support rod always remains in a retracted state.

[0008] In the above technical solution, preferably, the length of the chute is shorter than the length of the support rod. With this structure, when the support rod is withdrawn, it will not be dislodged from the hole due to excessive withdrawal.

[0009] In the above technical solution, preferably, there are two holes on the side wall of the window, two support rods are provided on the shift lever, two springs are fixed to the protective cover, and the two support rods pass through the centers of the two springs. Two pull ropes are provided on the protective cover, and the two pull ropes pass through the through holes in the centers of the two support rods respectively. There are two first guide parts, and the two pull ropes are respectively passed around the first guide parts adjacent to each other, and then passed around the second guide part at the same time. After the second guide part, the two pull ropes are merged into one and fixed to the slider. This structure can better ensure the stability of the protective cover in use and the balanced force, and the shift lever will not be skewed due to uneven force, which will cause the protective cover to become stuck when pulled.

[0010] In the above technical solution, preferably, protrusions are provided on both sides of the compression plate, and corresponding slide rails are provided on both sides of the interior of the main handle portion. The protrusions are confined in the slide rails and slidably connected to the slide rails. This structure can limit the range of movement of the compression plate and play a limiting role.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the blade-built-in mud scraper can well protect the blade, thereby preventing the blade from being scratched to damage the packaging or injuring the user when not in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of an embodiment of the present utility model.

[0013] Figure 2 This is a schematic diagram of the enlarged structure of part B in an embodiment of the present utility model.

[0014] Figure 3 This is a schematic cross-sectional view of an embodiment of the present invention.

[0015] Figure 4 This is a schematic diagram of the enlarged structure of part A in the cross-sectional view of an embodiment of the present utility model. DETAILED DESCRIPTION

[0016] The present invention is described in further detail below with reference to the accompanying drawings and specific embodiments: Figures 1 to 4, a mud scraper with a built-in blade 3, comprising a main body 1, a blade 3, a protective cover 2 and a compression plate 4. The main body 1 includes a front end and a handle portion. The blade 3 is fixed to the side of the front end of the main body 1 by rivets. The protective cover 2 surrounds the front end of the main body 1 on which the blade 3 is fixed. A slit is opened at the front end of the protective cover 2 for allowing the blade 3 to pass through. A window 17 is provided behind the blade 3 on the main body 1. The end of the protective cover 2 is connected at the window 17 and fixed by a spring 6 at the end of the protective cover 2 at the window 17. The spring 6 is compressed in the window 17. A hole is provided at the other end of the window 17 away from the protective cover 2. A lever 7 is provided behind the hole. A section of the lever 7 passes through a hole on the main body 1. A slide groove 13, a toggle button 9 is provided at the top end of the toggle lever 7 exposed to the outside of the main body 1, a support rod is provided inside the main body 1, the support rod passes through a hole, and the toggle lever 7 is provided with a through hole corresponding to the support rod. A pull rope 8 is provided on the protective cover 2, and the pull rope 8 passes through the through hole and is fixed to a slider 12 after passing through the first guide component 10 and the second guide component 11. The slider 12 is located in a strip groove inside the handle part of the main body 1 and is slidably connected to the strip groove. The handle part of the main body 1 is provided with a compression plate 4, and the front end of the compression plate 4 is rotatably connected to the main body 1. Two protrusions 14 are symmetrically provided on both sides of the compression plate 4, and the protrusion 14 is limited to an arc-shaped groove in the handle part of the main body 1. With this structure, when in use, first move the toggle button 9 back along the slide slot 13, which in turn moves the linkage lever 7 and the support rod back. At this point, the protective cover 2 is supported by the spring 6 and does not move. When scraping, the handle of the main body 1 is gripped. During the scraping process, the user exerts force, thereby gripping the compression plate 4. The compression plate 4 compresses toward the interior of the main body 1, pushing the slider 12 backward in the strip slot, thereby pulling the pull cord 8, which pulls the protective cover 2 backward, exposing the blade 3. When scraping is finished, the compression plate 4 is released. Under the action of the spring 6, the protective cover 2 is pushed to the front of the window 17, returning to its original state. At the same time, the pull cord 8 is pulled to restore the slider 12 and the compression plate 4.

[0017] In this embodiment, the toggle lever 7 is fixed to the rear end of the toggle button 9. The end of the chute 13, away from the blade 3, is rotatably connected to a locking ring 16 on the main body 1. The length of the locking ring 16 matches the length of the toggle button 9. When the seam scraper is not in use, the toggle button 9 is pushed forward, and the locking ring 16 is pressed down to press against the rear end of the toggle button 9. This prevents the toggle button 9 from accidentally moving when not in use and pushing the protective cover 2 backward, exposing the blade 3. Furthermore, when in use, the locking ring 16 is lifted, the toggle button 9 is slid backward to the end of the chute 13, and the locking ring 16 is pressed down to lock against the front end of the toggle button 9, ensuring that the support rod 5 remains in the retracted position.

[0018] In this embodiment, the length of the chute 13 is shorter than the length of the support rod 5. When the support rod 5 is withdrawn, it will not be dislocated from the hole due to excessive withdrawal.

[0019] In this embodiment, there are two holes on the side wall of the window 17, two support rods 5 are provided on the shift rod 7, two springs 6 are fixed on the protective cover 2, the two support rods 5 pass through the center of the two springs 6, two pull ropes 8 are provided on the protective cover 2, the two pull ropes 8 respectively pass through the through holes in the center of the two support rods 5, there are two first guide parts 10, the two pull ropes 8 respectively pass around their respective adjacent first guide parts 10, and then pass around the second guide part 11 at the same time, and the two pull ropes 8 are merged into one after the second guide part 11 and fixed on the slider 12.

[0020] In this embodiment, protrusions 14 are respectively provided on both sides of the compression plate 4, and corresponding slide rails 15 are provided on both sides of the interior of the handle portion of the main body 1. The protrusions 14 are confined in the slide rails 15 and slidably connected to the slide rails 15, thereby limiting the range of movement of the compression plate 4 and playing a limiting role.

[0021] Compared with the prior art, the protective cover on the blade-built-in mud scraper of the utility model can well protect the blade, thereby preventing the blade from being scratched to damage the packaging or scratching the user when not in use.

[0022] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A mud scraper with built-in blade, characterized by: The invention comprises a main body (1), a blade (3), a protective cover (2) and a compression plate (4), wherein the main body (1) comprises a front end and a handle portion, the blade (3) is fixed to the front end of the main body (1), the protective cover (2) surrounds and covers the front end of the main body (1) to which the blade (3) is fixed, and a slit is provided at the front end of the protective cover (2) for allowing the blade (3) to pass through, a window (17) is provided behind the blade (3) on the main body (1), the end of the protective cover (2) is connected at the window (17) and fixed to the end of the protective cover (2) at the window (17) by a spring (6), the spring (6) is compressed in the window (17), a hole is provided on the side wall of the other end of the window (17) away from the protective cover (2), a lever (7) is provided behind the hole, and a section of the lever (7) passes through a slide groove (13) on the main body (1), The lever (7) is provided with a limited toggle button (9) at the top end exposed to the outside of the main body (1), the lever (7) is provided with a support rod inside the main body (1), the support rod passes through the hole, the lever (7) is provided with a through hole corresponding to the support rod, the protective cover (2) is provided with a pull rope (8), the pull rope (8) passes through the through hole, and passes around the first guide component (10) and the second guide component (11) to be fixed on a slider (12), the slider (12) is located in a strip groove inside the handle part of the main body (1) and is slidably connected to the strip groove, the handle part of the main body (1) is provided with the compression plate (4), the front end of the compression plate (4) is rotatably connected to the main body (1), and two protrusions (14) are symmetrically provided on both sides of the compression plate (4), and the protrusions (14) are limited in an arc-shaped groove of the handle part of the main body (1).

2. The mud scraper with built-in blade according to claim 1, characterized in that: The shifting rod (7) is fixed to the rear end of the shifting button (9), and the end of the sliding groove (13) away from the blade (3) is rotatably connected to a locking ring (16) on the main body (1), and the length of the locking ring (16) is consistent with the length of the shifting button (9).

3. The mud scraper with built-in blade according to claim 1, characterized in that: The length of the slide groove (13) is shorter than the length of the support rod (5).

4. The mud scraper with built-in blade according to claim 1, characterized in that: There are two holes on the side wall of the window (17), two support rods (5) are provided on the shifting rod (7), two springs (6) are fixed on the protective cover (2), the two support rods (5) pass through the centers of the two springs (6), two pull ropes (8) are provided on the protective cover (2), the two pull ropes (8) respectively pass through the through holes in the centers of the two support rods (5), there are two first guide parts (10), the two pull ropes (8) respectively pass around the first guide parts (10) adjacent to each other, and then pass around the second guide part (11) at the same time, and the two pull ropes (8) are merged into one after the second guide part (11) and fixed on the slider (12).

5. The mud scraper with built-in blade according to claim 1, characterized in that: The compression plate (4) is provided with protrusions (14) on both sides, and corresponding slide rails (15) are provided on both sides of the interior of the handle portion of the main body (1). The protrusions (14) are limited in the slide rails (15) and are slidably connected to the slide rails (15).

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