Polishing device for repaired concrete structural surface
By introducing a combination of water supply pipe and flat nozzle into the concrete grinding device, wetting the grinding position will reduce dust generation, and adopting quick disassembly and limit pipe structures, it is easy to replace the grinding disc, solving the problems of excessive dust during grinding and difficult replacement of the grinding disc in the prior art, and improving construction efficiency and safety.
Patent Information
- Application Number
- CN202421302331.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-07
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-06-07
AI Technical Summary
The existing concrete grinding device will generate a lot of dust during the grinding process, and the grinding disc is inconvenient to replace, resulting in inefficient construction efficiency.
A concrete structural surface repair grinding device is designed, using a combination of water supply pipe and flat nozzle to wet the grinding position by spraying water to reduce dust generation; at the same time, a quick disassembly and limit pipe structure is adopted to make the grinding disc easy to replace.
It effectively reduces the generation of dust during grinding, improves the safety and efficiency of construction, and simplifies the replacement process of grinding discs.
Smart Images
Figure CN222644011U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of concrete construction, in particular to a post-repair grinding device for a concrete structure surface. Background Art
[0002] Reinforced concrete shear walls refer to reinforced concrete walls that are installed in the house structure for the main purpose of bearing horizontal loads (and also bearing vertical loads within the corresponding range). In high-rise and super-high-rise house structures, horizontal loads will play a major role, and the house needs a large anti-lateral displacement capacity. The anti-lateral displacement capacity of the frame structure is weak, and the mixed structure is limited to multi-story houses due to the low strength of the wall material and heavy weight. Therefore, a new structural system needs to be adopted in high-rise and super-high-rise house structures, which is the shear wall structural system.
[0003] After the formwork is removed during the construction of reinforced concrete shear walls, the structural surface may be dented due to various reasons. At this time, a grinding device is needed to grind it after concrete repair. The existing grinding device produces a lot of dust when grinding concrete, and the grinding disc is not easy to replace. Therefore, the market urgently needs to develop a concrete structural surface repair grinding device to help people solve the existing problem. Utility Model Content
[0004] The purpose of the utility model is to provide a device for grinding a concrete structural surface after repair, so as to solve the problem that the structural surface of the reinforced concrete shear wall after demolding during construction proposed in the above-mentioned background technology may be dented due to various reasons. At this time, a grinding device is needed to grind the concrete after repair. The existing grinding device generates a lot of dust when grinding concrete, and the grinding disc is not easy to replace.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a post-repair grinding device for a concrete structure surface, comprising a grinding device, a handle fixedly connected to the lower end of the grinding device, a heat dissipation back cover fixedly connected to one side of the grinding device, a motor fixedly arranged on one side of the interior of the grinding device, a water supply pipe fixedly arranged on the rear end of one side of the interior of the grinding device, a universal pipe extending from the upper end of the water supply pipe and fixedly connected to the grinding device, a flat-mouth nozzle fixedly connected to the upper end of the universal pipe, a limiting pipe fixedly connected to the middle part of the other side of the interior of the grinding device, one side of the limiting pipe extending out of the interior of the grinding device, a transmission shaft rotatably connected to the interior of the limiting pipe, one end of the transmission shaft extending from the limiting pipe fixedly connected to a connecting seat, a quick-release part fixedly connected to the connecting seat, a circular connecting groove provided in the middle of the interior of the quick-release part, a grinding disc connected to one side of the quick-release part, and a connecting shaft fixedly connected to the middle part of one side of the grinding disc.
[0006] Preferably, the lower end of the water supply pipe extends out of the interior of the polishing device.
[0007] Preferably, a limiting tube extends from the other end of the transmission shaft and is connected to the motor output shaft via a coupling.
[0008] Preferably, a rectangular cross-section annular limiting portion is fixedly connected to the transmission shaft, a rectangular cross-section annular limiting groove is provided inside the limiting tube, and the rectangular cross-section annular limiting portion slides into the rectangular cross-section annular limiting groove for limiting connection.
[0009] Preferably, the middle part of the upper and lower ends of the circular connecting groove is connected to a rectangular locking groove, a locking tongue is arranged inside the rectangular locking groove, a spring is arranged on the upper end of the locking tongue, one side of the rectangular locking groove is connected to a linkage groove, a rotating rod is rotatably connected inside the linkage groove, and one end of the rotating rod is rotatably connected to one side of the locking tongue through a first rotating shaft.
[0010] Preferably, the middle portion of the rotating rod is rotatably connected inside the linkage groove through a second rotating shaft, a telescopic groove is connected between one side of the upper end of the linkage groove and the outer end surface of the quick-release member, and a downward pressing rod is movably connected inside the telescopic groove.
[0011] Preferably, rectangular locking grooves are provided in the middle of the upper and lower ends of the outer end surface of the connecting shaft, and the connecting shaft is inserted into the inner limit connection of the circular connecting groove and the two locking tongues are respectively inserted into the two rectangular locking grooves.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] 1. In the utility model, a water supply pipe is fixedly arranged at the rear end of one side of the inside of the grinding device through the setting of the water supply pipe, the upper end of the water supply pipe extends out of the grinding device and is fixedly connected with a universal pipe, the upper end of the universal pipe is fixedly connected with a flat-mouth nozzle, and the lower end of the water supply pipe extends out of the inside of the grinding device. Water is supplied by an external water source and sprayed from the flat-mouth nozzle through the universal pipe, so that the grinding position is fully moistened to prevent a large amount of dust from being generated during grinding.
[0014] 2. In the utility model, through the setting of the quick-release part, the quick-release part is fixedly connected to the connecting seat, the connecting shaft is inserted into the circular connecting groove and the two locking tongues are respectively inserted into the two rectangular locking grooves. When the connecting shaft is inserted into the circular connecting groove, the connecting shaft is locked by the two locking tongues, so that the quick-release part drives the grinding disc to rotate to grind the concrete repair position. When the grinding disc needs to be replaced, the lower pressure rod is pressed, and the lower pressure rod presses down one side of the rotating rod to rotate the rotating rod. When the rotating rod rotates, the locking tongue is driven to retract into the rectangular locking groove and compress the spring, so that the locking tongue moves out of the rectangular locking groove, and the connecting shaft can be pulled out of the circular connecting groove, which is convenient for replacing the grinding disc.
[0015] 3. In the utility model, a rectangular cross-section annular limiting portion is provided, and a rectangular cross-section annular limiting portion is fixedly connected to the transmission shaft. A rectangular cross-section annular limiting groove is provided inside the limiting tube. The rectangular cross-section annular limiting portion slides into the rectangular cross-section annular limiting groove for limiting connection, thereby ensuring the stability of the rotation of the transmission shaft in the limiting tube and preventing the transmission shaft from moving laterally. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a front view of a post-repair grinding device for a concrete structure surface according to the utility model;
[0017] Figure 2 It is the main sectional view of the utility model;
[0018] Figure 3 It is a side sectional view of the grinding device of the utility model;
[0019] Figure 4 It is an enlarged view of the detail A of the utility model;
[0020] Figure 5 It is an enlarged view of detail B of the present utility model.
[0021] In the figure: 1. grinding device; 101. handle; 102. heat dissipation back cover; 103. motor; 2. water supply pipe; 201. universal pipe; 202. flat nozzle; 3. limit pipe; 301. rectangular cross-section annular limit groove; 4. transmission shaft; 401. rectangular cross-section annular limit part; 402. connecting seat; 5. quick release part; 501. circular connecting groove; 502. rectangular locking groove; 503. linkage groove; 504. telescopic groove; 6. locking tongue; 601. spring; 602. first rotating shaft; 603. rotating rod; 604. second rotating shaft; 605. pressing rod; 7. grinding disc; 701. connecting shaft; 702. rectangular locking groove. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0023] See also Figure 1-5The utility model provides an embodiment: a post-repair grinding device for a concrete structure surface, comprising a grinding device 1, a handle 101 is fixedly connected to the lower end of the grinding device 1, a heat dissipation rear cover 102 is fixedly connected to one side of the grinding device 1, a motor 103 is fixedly arranged on one side of the grinding device 1, a water supply pipe 2 is fixedly arranged on the rear end of one side of the grinding device 1, the upper end of the water supply pipe 2 extends out of the grinding device 1 and is fixedly connected to a universal pipe 201, and the upper end of the universal pipe 201 is fixedly connected to a flat mouth Nozzle 202, a limiting tube 3 is fixedly connected to the middle of the other side of the grinding device 1, one side of the limiting tube 3 extends out of the grinding device 1, the limiting tube 3 is rotatably connected to the transmission shaft 4, one end of the transmission shaft 4 extends out of the limiting tube 3 and is fixedly connected to a connecting seat 402, a quick release part 5 is fixedly connected to the connecting seat 402, a circular connecting groove 501 is provided in the middle of the quick release part 5, a grinding disc 7 is connected to one side of the quick release part 5, and a connecting shaft 701 is fixedly connected to the middle of one side of the grinding disc 7.
[0024] Furthermore, the lower end of the water supply pipe 2 extends out of the interior of the grinding device 1, and water is supplied by an external water source and sprayed out from the flat nozzle 202 through the universal pipe 201, so that the grinding position is fully moistened to prevent a large amount of dust from being generated during grinding.
[0025] Furthermore, a limiting tube 3 extends from the other end of the transmission shaft 4 and is connected to the output shaft of the motor 103 through a coupling, and the transmission shaft 4 is driven to rotate by the motor 103 .
[0026] Furthermore, a rectangular cross-section annular limiting portion 401 is fixedly connected to the transmission shaft 4, and a rectangular cross-section annular limiting groove 301 is arranged inside the limiting tube 3. The rectangular cross-section annular limiting portion 401 slides into the rectangular cross-section annular limiting groove 301 for limiting connection, thereby ensuring the stability of the rotation of the transmission shaft 4 in the limiting tube 3 and preventing the transmission shaft 4 from moving laterally.
[0027] Furthermore, rectangular locking grooves 502 are connected to the middle of the upper and lower ends of the circular connecting groove 501, a locking tongue 6 is arranged inside the rectangular locking groove 502, a spring 601 is arranged on the upper end of the locking tongue 6, a linkage groove 503 is connected to one side of the rectangular locking groove 502, a rotating rod 603 is rotatably connected inside the linkage groove 503, and one end of the rotating rod 603 is rotatably connected to one side of the locking tongue 6 through a first rotating shaft 602.
[0028] Furthermore, the middle part of the rotating rod 603 is rotatably connected inside the linkage groove 503 through the second rotating shaft 604, and a telescopic groove 504 is connected between one side of the upper end of the linkage groove 503 and the outer end surface of the quick-release part 5. A downward pressure rod 605 is movably connected inside the telescopic groove 504. By pressing the downward pressure rod 605, the downward pressure rod 605 presses down one side of the rotating rod 603 to rotate the rotating rod 603. When the rotating rod 603 rotates, it drives the lock tongue 6 to retract into the rectangular locking groove 502 and compress the spring 601.
[0029] Furthermore, rectangular locking grooves 702 are provided in the middle of the upper and lower ends of the outer end surface of the connecting shaft 701. The connecting shaft 701 is inserted into the internal limit connection of the circular connecting groove 501 and the two locking tongues 6 are respectively inserted into the two rectangular locking grooves 702. When the connecting shaft 701 is inserted into the circular connecting groove 501, the connecting shaft 701 is locked by the two locking tongues 6.
[0030] Working principle: When in use, a water supply pipe 2 is fixedly provided at the rear end of one side of the inside of the grinding device 1, and the upper end of the water supply pipe 2 extends out of the grinding device 1 and is fixedly connected to a universal pipe 201, and the upper end of the universal pipe 201 is fixedly connected to a flat nozzle 202, and the lower end of the water supply pipe 2 extends out of the inside of the grinding device 1, and water is supplied by an external water source and sprayed from the flat nozzle 202 through the universal pipe 201, so that the grinding position is fully moistened to prevent a large amount of dust from being generated during grinding, and the transmission shaft 4 is driven to rotate by the motor 103, and then the connecting seat 402 drives the quick release part 5 to rotate, and the middle parts of the upper and lower ends of the outer end surface of the connecting shaft 701 are provided with rectangular locking grooves 702, and the connecting shaft 701 is inserted into the circular connecting The internal limit connection of the connecting groove 501 allows the two locking tongues 6 to be inserted into the two rectangular locking grooves 702 respectively. When the connecting shaft 701 is inserted into the circular connecting groove 501, the connecting shaft 701 is locked by the two locking tongues 6, so that the quick-release part 5 drives the grinding disc 7 to rotate to grind the concrete repair position. When the grinding disc 7 needs to be replaced, the pressing rod 605 is pressed down, and the pressing rod 605 presses down one side of the rotating rod 603 to rotate the rotating rod 603. When the rotating rod 603 rotates, it drives the locking tongue 6 to retract into the rectangular locking groove 502 and compress the spring 601, so that the locking tongue 6 moves out of the rectangular locking groove 702, and the connecting shaft 701 can be pulled out of the circular connecting groove 501, which is convenient for replacing the grinding disc 7.
[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
Claims
1. A post-repair grinding device for a concrete structure surface, comprising a grinding device (1), characterized in that: The lower end of the grinding device (1) is fixedly connected to a handle (101), one side of the grinding device (1) is fixedly connected to a heat dissipation back cover (102), one side of the grinding device (1) is fixedly provided with a motor (103), a rear end of one side of the grinding device (1) is fixedly provided with a water supply pipe (2), the upper end of the water supply pipe (2) extends out of the grinding device (1) and is fixedly connected to a universal pipe (201), the upper end of the universal pipe (201) is fixedly connected to a flat nozzle (202), and the middle part of the other side of the grinding device (1) is fixedly connected to A limit tube (3) is provided, one side of the limit tube (3) extends out of the interior of the grinding device (1), the limit tube (3) is rotatably connected to a transmission shaft (4) inside, one end of the transmission shaft (4) extends out of the limit tube (3) and is fixedly connected to a connecting seat (402), a quick release component (5) is fixedly connected to the connecting seat (402), a circular connecting groove (501) is provided in the middle of the quick release component (5), one side of the quick release component (5) is connected to a grinding disc (7), and a connecting shaft (701) is fixedly connected to the middle of one side of the grinding disc (7).
2. A post-repair grinding device for a concrete structure surface according to claim 1, characterized in that: The lower end of the water supply pipe (2) extends out of the interior of the polishing device (1).
3. A post-repair grinding device for a concrete structure surface according to claim 1, characterized in that: The other end of the transmission shaft (4) extends out of a limit tube (3) and is connected to the output shaft of the motor (103) via a coupling.
4. A post-repair grinding device for a concrete structure surface according to claim 1, characterized in that: A rectangular cross-section annular limiting portion (401) is fixedly connected to the transmission shaft (4), a rectangular cross-section annular limiting groove (301) is arranged inside the limiting tube (3), and the rectangular cross-section annular limiting portion (401) slides into the rectangular cross-section annular limiting groove (301) for limiting connection.
5. The post-repair grinding device for concrete structure surface according to claim 1, characterized in that: The middle parts of the upper and lower ends of the circular connecting groove (501) are both connected to rectangular locking grooves (502); a locking tongue (6) is arranged inside the rectangular locking groove (502); a spring (601) is arranged at the upper end of the locking tongue (6); one side of the rectangular locking groove (502) is connected to a linkage groove (503); a rotating rod (603) is rotatably connected inside the linkage groove (503); one end of the rotating rod (603) is rotatably connected to one side of the locking tongue (6) via a first rotating shaft (602).
6. A post-repair grinding device for a concrete structure surface according to claim 5, characterized in that: The middle part of the rotating rod (603) is rotatably connected inside the linkage groove (503) via a second rotating shaft (604); a telescopic groove (504) is connected between one side of the upper end of the linkage groove (503) and the outer end surface of the quick-release component (5); and a downward pressing rod (605) is movably connected inside the telescopic groove (504).
7. A post-repair grinding device for a concrete structure surface according to claim 1, characterized in that: Rectangular locking grooves (702) are provided in the middle of the upper and lower ends of the outer end surface of the connecting shaft (701), and the connecting shaft (701) is inserted into the inner limit connection of the circular connecting groove (501) and the two locking tongues (6) are respectively inserted into the two rectangular locking grooves (702).