Concrete structure surface polishing and scabbling device
By designing a concrete structure surface grinding and chiseling device that includes multiple roller components and vertically arranged handles, the problems of concrete surface flatness deviation and low efficiency and high noise in the prior art grinding device are solved, and a more efficient and stable construction effect is achieved.
Patent Information
- Application Number
- CN202421932004.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-09
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-08-09
AI Technical Summary
During the construction process, the existing aluminum formwork support system and wooden formwork support system have a deviation in the surface flatness of the cast-in-place structure concrete due to human operation and external force, which cannot meet the acceptance standards of the main structure. In addition, the traditional pneumatic grinding device is low in efficiency, high noise and vibration, which affects the construction quality.
A concrete structure surface grinding and chiseling device is designed, including a driving mechanism, a first handle, a second handle, a transmission shaft head, a grinding disc and a roller assembly. By setting multiple roller components on the grinding disc, the impact and noise influence are reduced, and two vertically arranged handles are used to facilitate hand-held operation with better stability.
By reducing the impact and noise, the device improves the construction efficiency of concrete surface grinding and chiseling, with better stability, reduces construction costs, and improves construction quality and efficiency.
Smart Images
Figure CN222972522U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building construction, in particular to a device for grinding and roughening the surface of a concrete structure. Background Art
[0002] At the present stage, the main selectable formwork support systems during the construction of the main structure project are the existing aluminum formwork support system and the wooden formwork support system. No matter which formwork support system is selected, due to human operation and external force influence during the construction process, there will always be deviations in the surface flatness of the cast-in-place structural concrete. After the concrete is formed, the flatness does not meet the acceptance standards of the main structure. Especially for high-quality projects, the requirements for this item are stricter and higher. For the uneven concrete surface, in order to correct the flatness deviation, it may be necessary to grind or redo the concrete surface. The traditional pneumatic grinding device needs to be connected to an air compressor, and the hammer head has low efficiency, large noise and vibration impact, which is likely to cause quality hazards to the structure and affect the overall construction quality of the building. Content of the Utility Model
[0003] The utility model provides a device for grinding and roughening the surface of a concrete structure to solve one or several of the technical problems existing in the prior art.
[0004] The technical solution of the utility model for solving the above technical problems is as follows: A device for grinding and roughening the surface of a concrete structure includes a driving mechanism, a first handle, a second handle, a transmission shaft head, a grinding disc and a roller assembly. The first handle and the second handle are respectively installed at both ends of the driving mechanism. The holding sections of the first handle and the second handle are vertically arranged. The output end of the driving mechanism is coaxially and fixedly connected with the transmission shaft head. The transmission shaft head and the second handle are located at the same end of the driving mechanism. The second handle is located on the back side of the transmission shaft head. The free end of the transmission shaft head is detachably connected to the center of one side surface of the grinding disc. The transmission shaft head and the grinding disc are vertically arranged. A plurality of uniformly arranged roller assemblies are provided on the other side surface of the grinding disc. The central axis of the roller assembly is arranged parallel to the other side surface of the grinding disc.
[0005] The beneficial effect of the utility model is that: for the device for grinding and roughening the surface of a concrete structure of the utility model, by arranging a plurality of roller assemblies on the grinding disc, the impact and noise influence of the traditional roughening device on the concrete structure can be reduced, and the construction efficiency of grinding and roughening the concrete surface can be improved. By adopting two vertically arranged handles, it is convenient for two hands to hold and operate, and the stability is better.
[0006] On the basis of the above technical solution, the utility model can also be improved as follows.
[0007] Further, a grinding disc support is provided at the center position of one side surface of the grinding disc. The grinding disc support has an internal thread groove, the central axis of the internal thread groove is perpendicularly arranged to the grinding disc, an external thread structure is provided at the free end of the transmission shaft head, and the external thread structure is adaptively thread - connected in the internal thread groove.
[0008] The beneficial effect of adopting the above - mentioned further solution is: adopting a threaded connection structure, it is convenient to thread - connect the transmission shaft head in the internal thread groove of the grinding disc support.
[0009] Further, the holding section of the first handle is perpendicularly arranged to the central axis of the transmission shaft head, and the holding section of the second handle is perpendicularly arranged to the central axis of the transmission shaft head.
[0010] The beneficial effect of adopting the above - mentioned further solution is: better holding stability.
[0011] Further, the driving mechanism includes an assembly housing, a power motor and a gear assembly. The power motor and the gear assembly are both installed in the assembly housing. The power motor is in transmission connection with the transmission shaft head through the gear assembly, and the transmission shaft head is rotationally connected to the assembly housing through a first bearing; the first handle and the second handle are respectively installed at both ends of the assembly housing.
[0012] Further, a motor switch is also provided on the first handle. The motor switch is connected to the power motor through a cable and controls the start and stop of the power motor.
[0013] Further, the assembly housing is of a cylindrical structure. The first handle and the second handle are respectively installed at both axial ends of the assembly housing, and the holding section of the first handle is parallel to the central axis of the assembly housing.
[0014] Further, the roller assembly includes a metal roller and two ear plates. The two ear plates are parallel to each other and are respectively perpendicularly fixed on the other side surface of the grinding disc. Both ends of the metal roller are respectively rotationally connected to the two ear plates through pin shafts. The central axis of the metal roller is parallel to the other side surface of the grinding disc, and a gap is reserved between the metal roller and the grinding disc.
[0015] The beneficial effect of adopting the above - mentioned further solution is: by providing the metal roller and the ear plates, it is convenient to install and fix the metal roller.
[0016] Further, the central axes of multiple metal rollers intersect at point O, and point O is located on the central axis of the grinding disc.
[0017] Further, multiple circular cone protrusions are provided on the metal roller.
[0018] Further, the grinding disc is of a circular structure. Description of the Drawings
[0019] Figure 1 This is a schematic side view structure diagram of the device for grinding and roughening the surface of the concrete structure of the present utility model;
[0020] Figure 2 This is a schematic three - dimensional structure diagram of the device for grinding and roughening the surface of the concrete structure of the present utility model;
[0021] Figure 3 This is a schematic top - view structure diagram of the device for grinding and roughening the surface of the concrete structure of the present utility model.
[0022] In the drawings, the list of components represented by each reference numeral is as follows:
[0023] 1. Assembly housing; 11. First handle; 12. Second handle; 13. Motor switch;
[0024] 2. Grinding disc; 21. Grinding disc support;
[0025] 3. Metal roller; 31. Conical protrusion; 32. Ear plate; 33. Pin shaft;
[0026] 4. Transmission shaft head; 41. External thread structure. Detailed Embodiment
[0027] The principles and features of the present utility model will be described below with reference to the drawings. The examples given are only for explaining the present utility model and are not intended to limit the scope of the present utility model.
[0028] As Figures 1 to 3 shown, a device for grinding and roughening the surface of a concrete structure in this embodiment includes a driving mechanism, a first handle 11, a second handle 12, a transmission shaft head 4, a grinding disc 2, and a roller assembly. The first handle 11 and the second handle 12 are respectively installed at both ends of the driving mechanism. The holding sections of the first handle 11 and the second handle 12 are perpendicularly arranged. The output end of the driving mechanism is coaxially and fixedly connected to the transmission shaft head 4. The transmission shaft head 4 and the second handle 12 are located at the same end of the driving mechanism. The second handle 12 is located on the back side of the transmission shaft head 4. The free end of the transmission shaft head 4 is detachably connected to the center of one side surface of the grinding disc 2. The transmission shaft head 4 and the grinding disc 2 are perpendicularly arranged. Multiple uniformly arranged roller assemblies are provided on the other side surface of the grinding disc 2. The central axis of the roller assembly is parallel to the other side surface of the grinding disc 2.
[0029] Preferably, the number of the roller assemblies is 3, 4, 5, etc. Multiple roller assemblies do not affect each other during rotation.
[0030] As Figures 1 to 3As shown in the figure, at the center position of one side of the grinding disc 2 of this embodiment, there is a grinding disc support 21. The grinding disc support 21 has an internal thread groove, the central axis of the internal thread groove is perpendicular to the grinding disc 2, the free end of the transmission shaft head 4 is provided with an external thread structure 41, and the external thread structure 41 is threadedly connected to the internal thread groove in a matching manner. The threaded connection structure is adopted to conveniently thread-connect the transmission shaft head to the internal thread groove of the grinding disc support.
[0031] As Figures 1 to 3 shown in the figure, the holding section of the first handle 11 of this embodiment is perpendicular to the central axis of the transmission shaft head 4, and the holding section of the second handle 12 is perpendicular to the central axis of the transmission shaft head 4, so the holding stability is better.
[0032] A specific solution of this embodiment is that the driving mechanism includes an assembly housing 1, a power motor and a gear assembly. The power motor and the gear assembly are both installed in the assembly housing 1. The power motor is in transmission connection with the transmission shaft head 4 through the gear assembly, and the transmission shaft head 4 is rotatably connected to the assembly housing 1 through a first bearing; the first handle 11 and the second handle 12 are respectively installed at both ends of the assembly housing 1. The gear assembly can adopt a double bevel gear structure or a gear reduction structure, and the gear assembly can change the power direction of the output shaft of the power motor by 90°.
[0033] As Figure 2 shown in the figure, an electric motor switch 13 is further provided on the first handle 11 of this embodiment. The electric motor switch 13 is connected to the power motor through a cable and controls the start and stop of the power motor. The power motor can be connected to a plug through a cable, and the plug can be inserted into a socket to provide power. Specifically, the cable can pass through the middle of the first handle 11, as Figure 1 and Figure 2 shown in the figure.
[0034] As Figures 1 to 3 shown in the figure, the assembly housing 1 of this embodiment is a cylindrical structure. The first handle 11 and the second handle 12 are respectively installed at both axial ends of the assembly housing 1, and the holding section of the first handle 11 is parallel to the central axis of the assembly housing 1.
[0035] As Figures 1 to 3As shown in the figure, the roller assembly of this embodiment includes a metal roller 3 and two ear plates 32. The two ear plates 32 are parallel to each other and are respectively vertically fixed on the other side of the grinding disc 2. The two ends of the metal roller 3 are respectively rotatably connected to the two ear plates 32 through pin shafts 33. The central axis of the metal roller 3 is arranged parallel to the other side of the grinding disc 2, and a gap is reserved between the metal roller 3 and the grinding disc 2. Preferably, the pin shaft 33 is rotatably connected to the ear plate 32 through a second bearing. By providing the metal roller and the ear plates, the installation and fixation of the metal roller are facilitated.
[0036] The central axes of the multiple metal rollers 3 of this embodiment intersect at point O, and point O is located on the central axis of the grinding disc 2. The central axis of the metal roller 3 is also the central axis of the pin shaft 33.
[0037] As Figures 1 to 3 shown in the figure, multiple conical protrusions 31 are provided on the metal roller 3 of this embodiment. The metal roller 3 is preferably an alloy roller.
[0038] As Figure 2 shown in the figure, the grinding disc 2 of this embodiment is a circular structure. A circular structure grinding disc with a diameter of 12 cm is preferably used. The grinding disc is made of a steel structure.
[0039] After the grinding disc support and the grinding disc are connected and fastened according to the thread size of the power motor drive shaft head in this embodiment, first adjust the motor speed to the lowest, and then adjust the speed according to the actual on-site requirements. Before starting the grinding, the operator needs to wear labor protection supplies to prevent concrete debris from hurting people. After all the preparations are completed, the grinding can start.
[0040] A concrete structure surface grinding and roughening device of this embodiment can reduce the impact and noise effects of traditional roughening devices on the concrete structure by arranging multiple roller assemblies on the grinding disc, and improve the construction efficiency of concrete surface grinding and roughening. By using two vertically arranged handles, it is convenient for two-handed operation and has better stability. This embodiment uses an alloy roller grinding disc for grinding and roughening, increasing the roughening and grinding working surfaces, reducing the impact and construction noise on the structure caused by traditional roughening and grinding of the concrete surface, saving construction time, reducing the labor intensity of workers, reducing construction costs, and improving construction quality and construction efficiency.
[0041] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.
[0042] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.
[0043] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0044] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.
[0045] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc., mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.
[0046] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.
Claims
1. A device for grinding and roughening the surface of a concrete structure, characterized in that: It includes a driving mechanism, a first handle, a second handle, a transmission shaft head, a grinding disc and a roller assembly, wherein the first handle and the second handle are respectively installed at two ends of the driving mechanism, the hand-holding section of the first handle and the hand-holding section of the second handle are arranged vertically, the output end of the driving mechanism is coaxially fixedly connected with the transmission shaft head, the transmission shaft head and the second handle are located at the same end of the driving mechanism, the second handle is located on the back side of the transmission shaft head, the free end of the transmission shaft head is detachably connected to the center of one side of the grinding disc, the transmission shaft head is arranged vertically to the grinding disc, and the other side of the grinding disc is provided with a plurality of evenly arranged roller assemblies, and the central axis of the roller assembly is arranged parallel to the other side of the grinding disc.
2. A device for grinding and roughening the surface of a concrete structure according to claim 1, characterized in that: A grinding disc support is provided at the center position of one side of the grinding disc, and the grinding disc support has an internal thread groove, the central axis of the internal thread groove is arranged perpendicular to the grinding disc, and the free end of the transmission shaft head is provided with an external thread structure, and the external thread structure is adapted to be threadedly connected in the internal thread groove.
3. The device for grinding and roughening the surface of a concrete structure according to claim 1, characterized in that: The hand-holding section of the first handle is arranged perpendicularly to the central axis of the transmission shaft head, and the hand-holding section of the second handle is arranged perpendicularly to the central axis of the transmission shaft head.
4. A device for grinding and roughening the surface of a concrete structure according to claim 1, characterized in that: The driving mechanism includes an assembly shell, a power motor and a gear assembly, wherein the power motor and the gear assembly are both installed in the assembly shell, the power motor is transmission-connected to the transmission shaft head via the gear assembly, and the transmission shaft head is rotationally connected to the assembly shell via a first bearing; the first handle and the second handle are respectively installed at both ends of the assembly shell.
5. A device for grinding and roughening the surface of a concrete structure according to claim 4, characterized in that: The first handle is also provided with a motor switch, which is connected to the power motor through a cable and controls the start and stop of the power motor.
6. A device for grinding and roughening the surface of a concrete structure according to claim 4, characterized in that: The assembly shell is a cylindrical structure, the first handle and the second handle are respectively mounted at two ends of the assembly shell in an axial direction, and the hand-holding section of the first handle is arranged parallel to the central axis of the assembly shell.
7. A device for grinding and roughening the surface of a concrete structure according to claim 1, characterized in that: The roller assembly includes a metal roller and two ear plates, the two ear plates are parallel to each other and vertically fixed on the other side of the grinding disc, the two ends of the metal roller are rotatably connected to the two ear plates through pins, the central axis of the metal roller is arranged parallel to the other side of the grinding disc, and a gap is reserved between the metal roller and the grinding disc.
8. A device for grinding and roughening the surface of a concrete structure according to claim 7, characterized in that: The central axes of the plurality of metal rollers intersect at point O, and point O is located on the central axis of the grinding disc.
9. A device for grinding and roughening the surface of a concrete structure according to claim 7, characterized in that: The metal roller is provided with a plurality of circles of conical protrusions.
10. The device for grinding and roughening the surface of a concrete structure according to claim 1, characterized in that: The grinding disc is a circular structure.