Ground filling tool for constructional engineering
By designing a multi-functional gripping mechanism and a length adjustment mechanism on the cement scraper, the problems of weak gripping and low operating efficiency caused by the fixed grip length are solved, and the flexible adjustment of the grip and the improvement of operating efficiency are realized.
Patent Information
- Application Number
- CN202423014315.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-07
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-07
AI Technical Summary
The handle length of existing cement scrapers is fixed, making it difficult to adjust according to the user's operating habits, resulting in a weak grip and low operating efficiency.
A multifunctional gripping mechanism and length adjustment mechanism were designed, including a mounting rail, a slide, a grip bar, a connecting slide sleeve, a finger sleeve, a screw hole, a positioning bolt, and a length adjustment mechanism. The length adjustment of the grip bar and the detachable installation of the finger sleeve are achieved through sliding connection and threaded connection, thereby improving gripping comfort and operating efficiency.
The multi-functional grip mechanism and length adjustment mechanism enable flexible adjustment of the grip, improving user comfort and efficiency, and enhancing the ease of use of the tool.
Smart Images

Figure CN223647463U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cement scraper technology, specifically a ground filling tool for construction projects. Background Technology
[0002] During construction, uneven ground needs to be filled. This is done by laying a layer of cement mortar on the existing ground and then using a cement screed to smooth it out, ensuring a flat surface.
[0003] Existing patent application number: 202020487544.6. A novel cement scraper includes a blade holder, an L-shaped connecting rod on the blade holder, a handle on the L-shaped connecting rod, a U-shaped recess on the back of the blade holder, a scraper blade placed in the U-shaped recess, and screws for fixing the scraper blade through the blade holder at the four corners of the blade holder. This utility model has the advantages of convenient and flexible use and simple structure.
[0004] The aforementioned patent describes a cement scraper tool. Existing cement scrapers only provide one handle for the user to hold, resulting in low controllability. After prolonged use, the grip easily becomes weak. Moreover, the handle length of the cement scraper is fixed, making it difficult to adjust according to the user's operating habits, which significantly affects the tool's operating efficiency. Therefore, we propose a ground filling tool for construction engineering to solve the above problems. Utility Model Content
[0005] The purpose of this utility model is to provide a ground filling tool for construction projects to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model adopts the following technical solution: a ground filling tool for construction engineering, comprising a scraper blade and a multi-functional gripping mechanism. The multi-functional gripping mechanism is provided on the top of the scraper blade. The multi-functional gripping mechanism includes an installation rail, a slide groove, a grip rod, a connecting sleeve, a finger sleeve, a screw hole, a positioning bolt, and a length adjustment mechanism. The installation rail is riveted to the center of the top surface of the scraper blade. Slide grooves are symmetrically arranged on the left and right sides of the installation rail. A grip rod is riveted to the upper end of the upright on the top surface of the installation rail. A connecting sleeve is sleeved on the surface of the installation rail and is movably embedded in the inner side of the slide groove for sliding connection. A finger sleeve is bonded to the front half of the top surface of the connecting sleeve. A screw hole is provided through the rear end of the top surface of the connecting sleeve. A positioning bolt is threaded into the inner side of the screw hole. The bottom end of the positioning bolt passes through the screw hole and is tightly abutted against the installation rail. A length adjustment mechanism is provided at the rear end of the grip rod.
[0007] Preferably, the connecting sleeve can slide out of the mounting rail surface without obstruction.
[0008] Preferably, the finger sleeve is made entirely of nylon fiber.
[0009] Preferably, the length adjustment mechanism includes a plug groove, a threaded groove, an end cap, a plug rod, a threaded rod, a nut, and an extension sleeve. The rear end of the handle has a plug groove, and the front wall of the plug groove has a threaded groove. The end cap is located at the rear of the handle, and the front of the end cap is integrally provided with a plug rod. The plug rod is movably plugged into the inner side of the plug groove. The front of the plug rod is rotatably connected to a threaded rod, which can be threaded into the inner side of the threaded groove, so that the end cap is threadedly fixed at the rear of the handle. The rear of the end cap is movably fitted with a nut, and the rear end of the threaded rod passes through the plug rod and the end cap and is connected to the nut. An extension sleeve is sleeved on the outside of the plug rod, and the extension sleeve is clamped between the handle and the end cap.
[0010] Preferably, the surface shape of the plug rod, the plug groove, and the inner side shape of the extension sleeve are all square.
[0011] Preferably, the extension sleeve and the grip are made of the same material.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] This invention features a multi-functional gripping mechanism on the top of the scraper blade. When in use, the user holds the handle with their thumb and inserts the other four fingers into the finger sleeves. This gripping method allows for easier control of the scraper blade for scraping, wiping, and pressing, making it more convenient to use and further improving operational efficiency.
[0014] This invention features a length adjustment mechanism at the rear end of the grip. By fitting an extension sleeve onto the surface of the connector rod, inserting the connector rod back into the connector groove, and finally turning the nut to screw the threaded rod into the threaded groove, the extension sleeve is clamped between the grip and the end cap. The extension sleeve can be used as an extension of the grip. By installing extension sleeves of different lengths, the grip can be adjusted to a suitable length, making operation more convenient for the user. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the multifunctional gripping mechanism of this utility model;
[0017] Figure 3 This is a schematic diagram of the connecting sleeve structure of this utility model;
[0018] Figure 4 This is a schematic diagram showing the disassembled structure of the length adjustment mechanism in this utility model;
[0019] Figure 5 This is a schematic diagram of the rear structure of the end cap of this utility model;
[0020] Figure 6 This is a schematic diagram of the right-side cross-sectional structure of the grip bar of this utility model.
[0021] In the diagram: scraper blade-1, multi-functional gripping mechanism-2, mounting rail-21, slide groove-22, grip bar-23, connecting slide sleeve-24, finger sleeve-25, screw hole-26, positioning bolt-27, length adjustment mechanism-28, plug groove-281, threaded groove-282, end cap-283, plug rod-284, threaded rod-285, nut-286, extension sleeve-287. Detailed Implementation
[0022] To further explain the technical solution of this utility model, a detailed description is provided below through specific embodiments.
[0023] Please see Figure 1-3 This utility model provides a ground filling tool for construction engineering, including a scraper blade 1 and a multi-functional gripping mechanism 2, with the multi-functional gripping mechanism 2 provided on the top of the scraper blade 1.
[0024] This utility model provides a ground filling tool for construction engineering. The multi-functional gripping mechanism 2 includes an installation rail 21, a slide groove 22, a gripping rod 23, a connecting slide sleeve 24, a finger sleeve 25, a screw hole 26, a positioning bolt 27, and a length adjustment mechanism 28. The installation rail 21 is riveted to the center of the top surface of the scraper blade 1. Slide grooves 22 are symmetrically arranged on the left and right sides of the installation rail 21. The gripping rod 23 is riveted to the upper end of the upright on the top surface of the installation rail 21. The connecting slide sleeve 24 is sleeved on the surface of the installation rail 21 and is movably embedded in the inner side of the slide groove 22 for sliding connection. The finger sleeve 25 is bonded to the front half of the top surface of the connecting slide sleeve 24. The screw hole 26 is provided through the rear end of the top surface of the connecting slide sleeve 24. The positioning bolt 27 is threadedly connected to the inner side of the screw hole 26. The bottom end of the positioning bolt 27 passes through the screw hole 26 and is tightly pressed against the installation rail 21, so as to rub and fix the connecting slide sleeve 24 and the installation rail 21. The length adjustment mechanism 28 is provided at the rear end of the gripping rod 23.
[0025] To further explain, the connecting sleeve 24 can slide out of the surface of the mounting rail 21 without obstruction. The connecting sleeve 24 can be selected and installed according to the user's needs, making it more adjustable.
[0026] To further explain, the finger sleeve 25 is made entirely of nylon fiber, which has excellent wear resistance, making the finger sleeve 25 durable and not easily damaged.
[0027] Please see Figure 4-6This utility model provides a ground filling tool for construction engineering. The length adjustment mechanism 28 includes a plug groove 281, a threaded groove 282, an end cap 283, a plug rod 284, a threaded rod 285, a nut 286, and an extension sleeve 287. The plug groove 281 is provided at the rear end of the handle 23, and the threaded groove 282 is provided on the front wall of the plug groove 281. The end cap 283 is located at the rear of the handle 23, and the plug rod 284 is integrally provided at the front of the end cap 283. The plug rod 284 is movably plugged into the inner side of the plug groove 281. The threaded rod 285 is rotatably connected to the front of the plug rod 284, and the threaded rod 285 can be screwed into the nut. The end cap 283 is threadedly fixed to the rear of the handle 23 on the inner side of the groove 282. A nut 286 is movably fitted into the rear of the end cap 283. The rear end of the threaded rod 285 passes through the plug rod 284 and the end cap 283 and is connected to the nut 286. The user can control the rotation of the threaded rod 285 through the nut 286. An extension sleeve 287 is fitted on the outside of the plug rod 284. The extension sleeve 287 is clamped between the handle 23 and the end cap 283. The extension sleeve 287 can be used as an extension part of the handle 23. By installing extension sleeves 287 of different lengths, the handle 23 can be adjusted to a suitable length, making it easier for the user to operate.
[0028] To further explain, the surface shape of the plug rod 284 and the inner shape of the plug groove 281 and the extension sleeve 287 are both square, which makes the plug rod 284 more stable and less prone to rotation after being combined with the plug groove 281 and the extension sleeve 287.
[0029] To further explain, the extension sleeve 287 and the grip bar 23 are made of the same material to ensure a consistent grip feel.
[0030] The working principle is as follows:
[0031] First, the connecting sleeve 24 is fitted onto the surface of the mounting rail 21 and slid along the inner side of the groove 22 until the finger sleeve 25 is moved and adjusted to be below the grip bar 23. Then, the positioning bolt 27 is screwed into the screw hole 26 and pressed against the mounting rail 21, so that the connecting sleeve 24 and the mounting rail 21 are fixed by friction. The installation of the finger sleeve 25 is then completed. When in use, the user holds the palm on the grip bar 23 with the thumb and inserts the other four fingers into the inside of the finger sleeve 25. This holding method makes it easier to control the scraper blade 1 to perform scraping, wiping, pressing and other actions, making it more convenient to use and further improving the operating efficiency.
[0032] Secondly, if the finger sleeve 25 is not needed, the positioning bolt 27 can be unscrewed out of the screw hole 26, and then the connecting sleeve 24 can be moved to disengage it from the mounting rail 21, thus completing the disassembly of the finger sleeve 25. It can be added according to the user's needs, making it more adjustable.
[0033] Third, by setting a length adjustment mechanism 28 at the rear end of the grip 23, firstly, use a screwdriver to turn the nut 286 to control the threaded rod 285 to unscrew from the threaded groove 282, then remove the plug rod 284 from the plug groove 281, then select an extension sleeve 287 of appropriate length and put it on the surface of the plug rod 284, then insert the plug rod 284 back into the plug groove 281, and finally turn the nut 286 to control the threaded rod 285 to screw into the threaded groove 282, thereby clamping the extension sleeve 287 between the grip 23 and the end cap 283. The extension sleeve 287 can be used as an extension part of the grip 23. By installing extension sleeves 287 of different lengths, the grip 23 can be adjusted to a suitable length, making the operation more convenient for the user.
[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A ground filling tool for construction projects, comprising a scraper blade (1); characterized in that: It also includes a multi-functional gripping mechanism (2). The top of the scraper blade (1) is provided with a multi-functional gripping mechanism (2). The multi-functional gripping mechanism (2) includes a mounting rail (21), a slide groove (22), a grip bar (23), a connecting slide sleeve (24), a finger sleeve (25), a screw hole (26), a positioning bolt (27), and a length adjustment mechanism (28). The mounting rail (21) is riveted to the center of the top surface of the scraper blade (1). The slide grooves (22) are symmetrically arranged on the left and right sides of the mounting rail (21). The grip bar is riveted to the upper end of the upright on the top surface of the mounting rail (21). (23) A connecting sleeve (24) is fitted on the surface of the mounting rail (21), and the connecting sleeve (24) is movably embedded in the inner side of the sliding groove (22) for sliding connection. A finger sleeve (25) is bonded to the front half of the top surface of the connecting sleeve (24), and a screw hole (26) is provided through the rear end of the top surface of the connecting sleeve (24). A positioning bolt (27) is threaded inside the screw hole (26), and the bottom end of the positioning bolt (27) passes through the screw hole (26) and is tightly abutted against the mounting rail (21). A length adjustment mechanism (28) is provided at the rear end of the grip (23).
2. The ground filling tool for construction projects according to claim 1, characterized in that: The connecting sleeve (24) can slide out of the surface of the mounting rail (21) without obstruction.
3. The ground filling tool for construction projects according to claim 1, characterized in that: The finger sleeve (25) is made of nylon fiber.
4. The ground filling tool for construction projects according to claim 1, characterized in that: The length adjustment mechanism (28) includes a plug groove (281), a threaded groove (282), an end cap (283), a plug rod (284), a threaded rod (285), a nut (286), and an extension sleeve (287). The rear end of the grip (23) has a plug groove (281), and the front wall of the plug groove (281) has a threaded groove (282). The end cap (283) is located at the rear of the grip (23), and the front of the end cap (283) has an integrally formed plug rod (284). The plug rod (284) is movably plugged into the inner side of the plug groove (281). The front of the plug rod (284) is rotatably connected to a threaded rod (285), which can be screwed into the inner side of the threaded groove (282) so that the end cap (283) is threadedly fixed to the rear of the handle (23). The rear of the end cap (283) is movably fitted with a nut (286). The rear end of the threaded rod (285) passes through the plug rod (284) and the end cap (283) and is connected to the nut (286). An extension sleeve (287) is sleeved on the outside of the plug rod (284) and is clamped between the handle (23) and the end cap (283).
5. The ground filling tool for construction projects according to claim 4, characterized in that: The surface shape of the plug rod (284) and the inner shape of the plug groove (281) and the extension sleeve (287) are both square.
6. The ground filling tool for construction projects according to claim 4, characterized in that: The extension sleeve (287) and the grip (23) are made of the same material.
Citation Information
Patent Citations
Novel cement scraper
CN212027014U