Intelligent scraper for mortar in building construction
By designing a spherical component on the scraper and rotating it with the mounting groove, along with a dual-axis vibration motor and a driven frame, the problems of existing scrapers being unable to apply horizontal thrust and having limited contact area are solved, thus achieving efficient deep leveling of concrete foundations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN XUSHENG CONSTR GRP CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-05-26
AI Technical Summary
Existing mortar scrapers used in building construction cannot apply horizontal thrust, have limited contact area, and are difficult to effectively level uneven concrete foundation surfaces.
A smart mortar scraper for building construction was designed. The scraper achieves multi-dimensional rotation through the rotatable connection between the spherical component and the installation groove. It is equipped with a dual-axis vibration motor and a driven frame to enhance the fluidity of concrete, ensure that the scraper is in full contact with the concrete and apply differentiated downforce.
It significantly improves the contact area between the scraper and the concrete and the leveling efficiency, and can adapt to the irregular undulations of the concrete surface to achieve deep leveling of the concrete foundation.
Smart Images

Figure CN224281901U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction equipment technology, and in particular to an intelligent mortar scraper for building construction. Background Technology
[0002] In the construction industry, mortar scrapers are a common tool for leveling surfaces and play a crucial role in ensuring the smoothness of concrete foundation surfaces. However, traditional mortar scrapers used in construction have certain limitations in terms of structural design and functional implementation.
[0003] The current mortar scraper structure mainly consists of a scraper section for leveling the ground. The scraper is connected to a tie rod via a horizontal locating pin on its central axis, allowing it to rotate. However, the locating pin restricts the scraper, limiting its movement to a vertical direction relative to the tie rod, thus achieving the purpose of leveling the concrete foundation surface. However, this design has significant shortcomings:
[0004] First, it cannot apply horizontal thrust: the structural design cannot apply horizontal thrust to the concrete, causing the scraper to passively swing up and down with the concrete, rather than actively improving the unevenness of the concrete foundation surface. Faced with the undulations of the concrete foundation surface, the scraper struggles to effectively level it.
[0005] Secondly, the contact area is limited: the scraper can only swing up and down. When the concrete heights on both sides are different, the lower end of the scraper cannot contact the lower area, resulting in a limited contact area and failure to fully adhere to the concrete surface, which affects the smoothing effect.
[0006] In summary, existing mortar scrapers for construction have numerous structural and functional defects, failing to meet the current standards and requirements for high-quality flatness in concrete foundation construction. Therefore, it is particularly necessary to develop a new type of intelligent mortar scraper for construction to solve the problems existing in the current technology. Utility Model Content
[0007] To address the shortcomings of existing technologies, this invention proposes an intelligent mortar scraper for building construction. This device improves the deep fluidity of concrete foundations and accelerates leveling efficiency, overcoming the limitation of existing devices that can only level the surface of concrete foundations and cannot address overall height variations.
[0008] To address the shortcomings of existing technologies, this invention proposes an intelligent mortar scraper suitable for building construction. This device enhances the deep flowability of concrete foundations and significantly improves the efficiency of leveling operations. It solves the problem that existing devices can only level the surface of concrete foundations and cannot handle changes in the overall height of the concrete foundation.
[0009] To achieve the above objectives, the present invention provides the following technical solution:
[0010] A smart mortar scraper for construction includes a tie rod with a scraper rotatably connected to its lower end. A vibration component is provided on the upper side of the scraper and is movably connected to it. The vibration component includes a dual-axis vibration motor with a driven frame fixedly connected to its lower end. A positioning frame is rotatably connected to the lower end of the tie rod and is fixedly connected to the dual-axis vibration motor. The scraper is rotatably connected to the tie rod via a connecting component, which includes a ball fixedly connected to the scraper. An installation groove is provided on the tie rod for the ball, and the ball is embedded in the installation groove.
[0011] Preferably, a plurality of compression springs are provided between the scraper and the driven frame, and the two axial ends of each compression spring abut against the scraper and the driven frame, respectively.
[0012] Preferably, the driven frame and the scraper are respectively fixedly connected to limit rods near the end, and multiple limit rods in the same horizontal plane correspond one-to-one with multiple compression springs, and each limit rod is embedded inside the corresponding compression spring.
[0013] Preferably, the upper end of the pull rod has a through groove, into which the operator's hand is inserted.
[0014] Preferably, a horizontal column is fixedly connected to the upper end of the pull rod, and the positioning frame is fixedly connected to the pull rod via a horizontal pin along the central axis.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] This invention enables the scraper to rotate in multiple dimensions by embedding a spherical component into the mounting groove of the tie rod. Compared to the traditional locating pin connection method, this design significantly increases the contact area between the scraper and the concrete, allowing it to adapt to irregular undulations on the concrete surface. It ensures full contact between both sides of the scraper and the concrete foundation, thus solving the problems of traditional scrapers being unable to apply horizontal thrust, and failing to improve surface unevenness and achieve good concrete smoothing in low-lying areas.
[0017] This invention features a vibrating component, comprised of a dual-axis vibrating motor, positioned above the scraper. This component enhances the fluidity of the concrete, thereby achieving deep leveling of the concrete foundation. Below the dual-axis vibrating motor, a driven frame is provided, which is rotatably connected to a tie rod via a positioning frame to restrict its movement. By employing a non-horizontal design for the scraper and driven frame, the driven frame can apply differentiated downward pressure to different parts of the scraper, ensuring a uniform distribution of the overall concrete height and effectively adapting to concrete foundations of various heights. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0019] Figure 2 This is a schematic diagram showing the connection between the vibration component and the tie rod of this utility model.
[0020] Figure 3 This is a schematic diagram showing the positional relationship between the driven frame and the compression spring of this utility model.
[0021] Figure 4 This is a schematic diagram showing the connection relationship between the limiting rod and the scraper of this utility model.
[0022] In the diagram: 1. Through groove; 2. Horizontal column; 3. Tie rod; 4. Vibration component; 401. Dual-axis vibration motor; 402. Positioning frame; 403. Driven frame; 5. Scraper; 6. Pin; 7. Compression spring; 8. Limiting rod; 9. Ball. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0025] like Figure 1 As shown, this utility model relates to an intelligent mortar scraper for building construction. Its structure is consistent with existing technology devices, and it mainly includes a scraper 5 parts for leveling the ground.
[0026] In addition, the upper end of the scraper 5 is connected to the pull rod 3 through a rotating connecting device. This design makes it easy for operators to level the ground by pulling the pull rod 3, thereby reducing the need for operators to bend over frequently.
[0027] See Figure 1 and Figure 4 The difference between this device and existing technology devices is that the scraper 5 and the pull rod 3 are rotatably connected by a connecting component.
[0028] Specifically, the connecting component includes a spherical part fixedly connected to the scraper 5. The tie rod 3 has a mounting groove that matches the spherical part. The spherical part is embedded in the mounting groove, allowing the scraper 5 to rotate in multiple dimensions relative to the tie rod 3 (the spherical part ensures that the relative position between the scraper 5 and the tie rod 3 remains unchanged). This design allows the scraper 5 to adapt to the unevenness of the concrete surface in different areas, increases the contact area between the scraper 5 and the concrete, and ensures full adhesion between the scraper 5 and the concrete.
[0029] It should be noted that in current technical equipment, the scraper 5 is typically rotatably connected to the tie rod 3 via a horizontal locating pin located on the central axis. The design of the locating pin restricts the scraper 5 to swinging only vertically relative to the tie rod 3, thus ensuring a smooth concrete base surface. However, this design cannot apply horizontal thrust to the concrete, causing the scraper 5 to passively swing up and down with the concrete, failing to address the technical problem of uneven concrete base surfaces. Furthermore, because the scraper 5 can only swing up and down, when the concrete contact heights on both sides are inconsistent, the lower end face of the scraper 5 cannot contact the lower concrete base, resulting in ineffective smoothing of the lower concrete surface area.
[0030] Therefore, this device achieves the multi-angle rotation function of scraper 5 through the cooperation of ball 9 and mounting groove. This significantly increases the contact area between scraper 5 and concrete foundation, ensuring that both sides of scraper 5 can fully contact the concrete foundation.
[0031] This device has a vibrating component 4 installed above the scraper 5, which enables the scraper 5 to vibrate during use. Through vibration, the fluidity of the concrete is significantly improved, thus allowing the device to achieve deep leveling of the concrete foundation during operation with the help of the vibrating component 4.
[0032] The vibration component 4 is specifically composed of a dual-axis vibration motor 401.
[0033] To better adapt to concrete foundations of different heights, the device has a driven frame 403 below the dual-axis vibratory motor 401, and the movement of the dual-axis vibratory motor 401 is limited by the rotational connection between the positioning frame 402 and the tie rod 3. In actual operation, when the dual-axis vibratory motor 401 is working, it can drive the driven frame 403 to swing up and down relative to the scraper 5 and the tie rod 3.
[0034] It is worth noting that the scraper 5 is rotatably connected to the tie rod 3 via the ball 9, and the positioning frame 402 is connected to the tie rod 3 via a pin 6 on the horizontal central axis (this pin 6 design restricts the positioning frame 402 to only swinging up and down). Therefore, the upper end face of the scraper 5 and the lower end face of the driven frame 403 do not always remain horizontal in actual operation. This design causes the contact time between the driven frame 403 and the scraper 5 to vary, resulting in different downward distances pushed by the driven frame 403 to different parts of the scraper 5. Therefore, by applying downward pressure for a longer period of time on a higher concrete foundation, its downward displacement distance can be increased, thereby achieving a more uniform overall height of the concrete.
[0035] In addition, this device is equipped with several compression springs 7 between the scraper 5 and the driven frame 403. The two ends of these springs are in close contact with the scraper 5 and the driven frame, respectively. In this way, the compression springs 7 can effectively transmit the downward pressure, which is in line with the working characteristics of the dual-axis vibration motor 401 (i.e., short stroke and high frequency). At the same time, it ensures that the scraper 5 applies continuous pressure to the concrete foundation, and avoids the formation of new depressions in the concrete foundation due to insufficient contact time during the downward movement of the scraper 5.
[0036] To ensure the precise positioning of the compression spring 7, limit rods 8 are fixedly installed near the follower plate and scraper 5, respectively. By constraining the limit rods 8 and compression springs 7 to the same horizontal plane in a one-to-one correspondence, the installation of the limit rods 8 ensures that they are embedded inside the corresponding compression springs 7, thereby achieving effective constraint on the position of the compression springs 7.
[0037] Since the levelness of the lower end face of the driven frame 403 is directly affected by the tilt angle of the tie rod 3, this equipment is designed with a through groove 1 (inverted T-shaped structure) at the upper end of the tie rod 3. Its size is carefully designed to accommodate the size of the operator's palm, ensuring that the operator can easily insert his palm into the through groove 1. Through the multi-point contact of the operator's palm in the through groove 1, the lower end face of the driven frame 403 can be stably kept level.
[0038] Finally, a horizontal column 2 (a transparent structure containing a liquid column) is fixedly connected to the upper end of the tie rod 3. Its function is to help the operator to more accurately control the direction and applied force of the driven frame 403 during construction.
[0039] In practical use, this utility model:
[0040] 1) Equipment commissioning phase
[0041] The operator needs to insert their palm into the through groove 1 at the upper end of the pull rod 3, and use a multi-point fixation method to observe the horizontal column 2 and adjust the tilt angle of the pull rod 3 to ensure that the lower end face of the driven frame 403 reaches a horizontal state.
[0042] Start the dual-axis vibration motor 401 and check whether it can drive the driven frame 403 to swing up and down relative to the scraper 5 and the pull rod 3 normally.
[0043] 2) Scraper 5 multi-angle adjustment
[0044] The operator pulls the lever 3, utilizing the characteristic that the scraper 5 and the mounting groove on the lever 3 are rotatably connected through a spherical component, to achieve multi-dimensional rotation of the scraper 5 relative to the lever 3. This operation aims to adapt to the unevenness of the concrete surface in different areas, increase the contact area between the scraper 5 and the concrete, and ensure that both sides of the scraper 5 can make full contact with the concrete foundation.
[0045] 3) Vibration leveling operation
[0046] After the dual-axis vibration motor 401 is started, it drives the driven frame 403 to swing up and down relative to the scraper 5 and the tie rod 3. Since the contact time between the driven frame 403 and the scraper 5 is different at different parts, we will apply a longer downward pressure to the higher concrete foundation to increase its sinking distance, thereby ensuring the overall height of the concrete is uniform.
[0047] The compression spring 7 is responsible for transmitting the downward pressure, ensuring the duration of the downward pressure applied by the scraper 5 to the concrete foundation, so as to avoid the formation of new potholes.
[0048] The dual-axis vibration motor 401 drives the scraper 5 to vibrate, improving the fluidity of concrete and achieving deep leveling of the concrete foundation.
[0049] 4) Continuous operation
[0050] The operator needs to continuously pull the lever 3 to move the scraper 5 on the concrete surface, repeating the process of adjusting and vibrating the scraper 5 until the concrete surface of the entire construction area meets the flatness requirements.
[0051] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A smart mortar scraper for building construction, comprising a tie rod (3), wherein a scraper (5) is rotatably connected to the lower end of the tie rod (3), characterized in that: A vibration component (4) is provided on the upper side of the scraper (5), and the vibration component (4) is movably connected to the scraper (5); The vibration component (4) includes a dual-axis vibration motor (401), the lower end of which is fixedly connected to a driven frame (403), and the lower end of the pull rod (3) is rotatably connected to a positioning frame (402), which is fixedly connected to the dual-axis vibration motor (401). The scraper (5) is rotatably connected to the pull rod (3) through a connecting member. The connecting member includes a ball (9) that is fixedly connected to the scraper (5). The pull rod (3) has an installation groove for the ball (9), and the ball (9) is embedded in the installation groove.
2. The intelligent mortar scraper for building construction according to claim 1, characterized in that: A plurality of compression springs (7) are provided between the scraper (5) and the driven frame (403), and each of the compression springs (7) has its two axial ends abutting against the scraper (5) and the driven frame (403) respectively.
3. The intelligent mortar scraper for building construction according to claim 2, characterized in that: The driven frame (403) and the scraper (5) are respectively fixedly connected to limit rods (8). Multiple limit rods (8) in the same horizontal plane correspond one-to-one with multiple compression springs (7), and each limit rod (8) is embedded inside the corresponding compression spring (7).
4. The intelligent mortar scraper for building construction according to claim 1, characterized in that: The upper end of the pull rod (3) is provided with a through groove (1), and the operator's palm is inserted into the through groove (1).
5. The intelligent mortar scraper for building construction according to claim 1, characterized in that: The upper end of the pull rod (3) is fixedly connected to a horizontal column (2), and the positioning frame (402) is fixedly connected to the pull rod (3) through a horizontal pin (6) on the central axis.