A chisel structure with a spraying function

Abstract

The utility model relates to concrete chiseling technology field, concretely relates to a chiseling structure with spray function, including chiseling head, outer casing and chiseling subassembly, the chiseling head sets up one end at the outer casing, the chiseling subassembly sets up in the outer casing, and the chiseling subassembly with the chiseling head is connected, the chiseling subassembly includes the inner casing fixed in the outer casing, sets up the drive unit and the power conversion unit connected with drive unit in the inner casing, the power conversion unit includes first piston piece and power conversion piece, first piston piece with power conversion piece with drive unit is connected, drive unit passes through power conversion piece and sends power to chiseling head, and the chiseling head is provided with spray column, and the spray column is connected with first piston piece, solves the technical problem of dust pollution in the chiseling process.

Description

Technical Field

[0001] This utility model relates to the field of concrete roughening technology, specifically to a roughening structure with a spraying function. Background Technology

[0002] In construction, road maintenance, and concrete structure treatment, roughening is a crucial process. Its purpose is to create roughness on the surface of hard materials like concrete through impact and chiseling, thereby enhancing the bond between new and old concrete or providing an ideal substrate for subsequent coatings. Traditional roughening equipment, such as pneumatic drills and electric drills, focuses on chiseling, completing the task through high-frequency impact from the chisel head. However, this type of equipment has a significant drawback in practical applications: the roughening process generates a large amount of dust. This dust not only severely pollutes the working environment, reduces visibility, and affects operational accuracy, but also poses a long-term threat to the respiratory health of construction workers and may lead to premature wear of precision components inside the equipment.

[0003] Therefore, the inventors proposed a chisel structure with a spraying function to solve the above-mentioned technical problems. Utility Model Content

[0004] The purpose of this invention is to provide a chiseling structure with a spray function to reduce the technical problem of dust pollution during the chiseling process.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A chisel structure with a spray function includes a chisel head, a housing, and a chisel assembly. The chisel head is disposed at one end of the housing, the chisel assembly is disposed within the housing, and the chisel assembly is connected to the chisel head. The chiseling assembly includes an inner shell fixed within the outer shell, a drive unit disposed within the inner shell, and a power conversion unit connected to the drive unit. The power conversion unit includes a first piston and a power conversion component. The first piston and the power conversion component are connected to the drive unit. The drive unit transmits power to the shaving head through the power conversion component. The shaving head is provided with a spray column, which is connected to the first piston.

[0006] Furthermore, the inner housing includes a partition plate and a water tank disposed on the partition plate, and the drive unit and the power conversion unit are disposed below the partition plate.

[0007] Furthermore, the drive unit includes a drive frame fixedly mounted on a partition plate, a gear disk rotatably mounted inside the drive frame, a connecting rod eccentrically hinged to the gear disk, a push rod hinged to the connecting rod, the push rod slidably mounted on the drive frame, a sliding plate connected to the end of the push rod, and the first piston, the second piston, and the power conversion component connected to the sliding plate.

[0008] Furthermore, the drive unit also includes a motor, which is fixedly mounted on the drive frame. The output shaft of the motor is connected to a drive gear, which meshes with the gear disk.

[0009] Furthermore, the first piston component includes a first piston cylinder and a first piston rod that is slidably and sealed within the first piston cylinder. The first piston rod is fixedly connected to the sliding plate, and the first piston cylinder is fixedly installed below the partition plate.

[0010] Furthermore, the first piston cylinder is provided with an inlet and an outlet. A first one-way valve diaphragm is provided at the inlet, and a second one-way valve diaphragm is provided at the outlet. The inlet is connected to an inlet pipe that extends into the water tank, and the outlet is connected to an outlet pipe that is connected to the burr head.

[0011] Furthermore, the power conversion component includes a first conversion component and a second conversion component fixed to the outer casing; The first conversion component includes a first conversion shell fixed to the outer shell, a first gear rotatably disposed inside the first conversion shell, the first gear meshing with a rack, and the rack being fixedly connected to the sliding plate; The second conversion component includes a second conversion shell fixed to the outer casing. A first output shaft and a second output shaft are rotatably connected to the second conversion shell. The first output shaft is coaxially and fixedly connected to the first gear. A first bevel gear is coaxially and fixedly disposed on the first output shaft. A second bevel gear is coaxially and fixedly disposed on the second output shaft. The first bevel gear and the second bevel gear mesh with each other.

[0012] Furthermore, the shaving head includes a shaving box and a spray box fixed to the shaving box. The shaving box and the spray box are slidably disposed on the outer shell. A shaving drill is rotatably disposed on the side of the shaving box away from the spray box. A drive shaft is rotatably disposed on the shaving box. One end of the drive shaft is connected to the shaving drill, and the other end of the drive shaft passes through the spray box and is connected to the second output shaft.

[0013] Furthermore, the chiseling box is provided with several spray columns, each spray column having several spray holes, the spray columns being connected to the spray box, and the water outlet pipe being connected to the spray box.

[0014] Furthermore, multiple spray columns are provided and arranged in a ring array around the burr drill; the spray holes face the working area of ​​the burr drill, and the axis of the spray holes is set at an acute angle to the axis of the spray columns.

[0015] The beneficial effects of this utility model are: This invention employs a single motor, which, through a gear disc, connecting rod, and push rod mechanism, converts rotary motion into the reciprocating motion of a sliding plate. This directly drives the first piston, continuously pumping water from the tank to create a pulsed water flow. Simultaneously, a rack and pinion mechanism converts the same reciprocating motion into the forward and reverse rotational impact of a chisel. This linkage ensures perfect timing and frequency matching between the spraying and chiseling operations, suppressing dust while avoiding the inconvenience of an external water source, simplifying the equipment structure, and reducing water consumption.

[0016] This invention centrally supplies water to a spray box, which then sprays it through multiple spray columns arranged in a ring around the chisel. The spray holes are specially designed to face the chisel work area and shoot out at an acute angle, forming a water curtain that effectively covers the chisel point. This not only ensures that water resources are concentrated and used efficiently for dust suppression and cooling of the drill bit, but also greatly reduces water waste. The structure is compact and highly practical.

[0017] Other advantages, objectives, and features of this application will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be learned from practice of this application. The objectives and other advantages of this application may be realized and obtained through the detailed embodiments described below. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the chisel-shaped structure with spraying function of this utility model. Figure 2 This is a partial structural diagram of the chisel structure with spraying function of this utility model. Figure 3 In the chisel structure with spray function of this utility model Figure 2 A sectional view; Figure 4 In the chisel structure with spray function of this utility model Figure 3 Schematic diagram of Part A; Figure 5 In the chisel structure with spray function of this utility model Figure 2Partial structural diagram; Figure 6 This is a schematic diagram of the drive unit in the chiseling structure with spraying function of this utility model. Detailed Implementation

[0019] The embodiments of this utility model will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be understood that the preferred embodiments are only for illustrating this utility model and not for limiting the scope of protection of this utility model.

[0020] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0021] This embodiment proposes a chisel-like structure with a spraying function, such as Figures 1 to 6 As shown, it includes a chisel head 1, a housing 2, and a chisel assembly 4. The chisel head 1 is located at the left end of the housing 2, and the chisel assembly 4 is fixedly located inside the housing 2. The chisel assembly 4 includes an inner housing 41, a drive unit 42 located in the inner housing 41, and a power conversion unit 43 connected to the drive unit 42.

[0022] The power conversion unit 43 includes a first piston 431 and a power conversion component 433. The first piston 431 and the power conversion component 433 are connected to the drive unit 42. A spray column 14 is provided on the chisel head 1. The spray column 14 is connected to the first piston 431. The drive unit 42 supplies water to the chisel head 1 through the first piston 431 to achieve the spraying function.

[0023] In a preferred embodiment, the inner shell 41 is fixedly installed inside the outer shell 2. The inner shell 41 includes a partition plate 411 and a water tank 412 disposed on the partition plate 411. The drive unit 42 and the power conversion unit 43 are disposed below the partition plate 411. A gear disk 422 is rotatably disposed inside the drive frame 421. A connecting rod 423 is eccentrically hinged to the gear disk 422. A push rod 424 is hinged to the connecting rod 423. The push rod 424 is slidably mounted on the drive frame 421. A sliding plate 425 is fixedly connected to the left end of the push rod 424. The first piston 431 and the power conversion unit 433 are connected to the sliding plate 425. A motor 426 is fixedly disposed on the drive frame 421. The output shaft of the motor 426 is connected to a drive gear 427, which meshes with the gear disk 422.

[0024] In this embodiment, the inner shell 41 is divided into upper and lower parts by a partition plate 411. A water tank 412 is set above the partition plate 411 to serve as a water source for the spray system, while the drive unit 42 and the power conversion unit 43 are concentrated below. This layout is conducive to the stability of the overall center of gravity and facilitates the filling of the water tank 412 with water. The drive frame 421 serves as a supporting foundation. When the motor 426 is started, the output shaft of the motor 426 drives the drive gear 427 to rotate. The drive gear 427 drives the gear disk 422 to rotate. The gear disk 422 is provided with an eccentric hinge point, which is hinged to the push rod 424 through the connecting rod 423, converting the rotational motion of the gear disk 422 into the reciprocating linear motion of the push rod 424. The end of the push rod 424 is connected to the sliding plate 425, so that the sliding plate 425 also reciprocates.

[0025] In a preferred embodiment, the first piston component 431 includes a first piston cylinder 4311 and a first piston rod 4312 that is slidably connected within the first piston cylinder 4311. The first piston cylinder 4311 is fixed to the inner housing 41, and the right end of the first piston rod 4312 is fixedly connected to the sliding plate 425. A water inlet is provided at the top of the first piston cylinder 4311, and a water outlet is provided on the left side of the first piston cylinder 4311. A first one-way valve diaphragm (not shown) is provided at the water inlet, and a second one-way valve diaphragm (not shown) is provided at the water outlet. A water inlet pipe 4313 is connected to the water inlet and extends into the water tank 412. A water outlet pipe 4314 is connected to the water outlet and is connected to the chisel head 1.

[0026] In this embodiment, when the drive unit 42 drives the first piston rod 4312 to reciprocate within the first piston cylinder 4311 via the sliding plate 425, it achieves the water pumping function. During the stroke of the first piston rod 4312 pulling to the right, a negative pressure is formed within the first piston cylinder 4311. At this time, the first one-way valve diaphragm at the inlet opens under the action of the pressure difference, while the second one-way valve diaphragm at the outlet closes. Water in the water tank 412 is drawn into the first piston cylinder 4311 through the inlet pipe 4313 to complete the water suction process. During the subsequent stroke of the first piston rod 4312 pushing to the left, the pressure within the first piston cylinder 4311 increases, forcing the first one-way valve diaphragm to close to prevent backflow of water. At the same time, the pressure pushes open the second one-way valve diaphragm, allowing the water accumulated in the first piston cylinder 4311 to be forced into the outlet pipe 4314 through the outlet and finally delivered to the chisel head 1 to complete the drainage process. This cycle repeats continuously, converting the mechanical energy of the drive unit 42 into the pressure energy of water, achieving pulsed water spraying that is strictly synchronized with the chiseling action. This effectively suppresses dust and wets the working surface, allowing for targeted water spraying during the chiseling process of concrete, thus significantly reducing the amount of water used.

[0027] In a preferred embodiment, the power conversion component 433 includes a first conversion component and a second conversion component fixed on the outer shell 2; the first conversion component includes a first conversion shell 4331 fixed on the outer shell 2, a first gear 4332 is rotatably disposed inside the first conversion shell 4331, the first gear 4332 meshes with a rack 4333, and the right end of the rack 4333 is fixedly connected to the sliding plate 425.

[0028] The second conversion component includes a second conversion housing 4334 fixed on the outer housing 2. A first output shaft 4335 and a second output shaft 4336 are rotatably connected to the second conversion housing 4334. The first output shaft 4335 is coaxially and fixedly connected to the first gear 4332. A first bevel gear is coaxially and fixedly mounted on the first output shaft 4335, and a second bevel gear is coaxially and fixedly mounted on the second output shaft 4336. The first bevel gear and the second bevel gear mesh with each other.

[0029] In this embodiment, the rack 4333 fixed on the sliding plate 425 reciprocates linearly with the reciprocating motion of the sliding plate 425. When the rack 4333 moves to the left, it drives the first gear 4332 meshing with it to rotate in one direction (e.g., counterclockwise). When the rack 4333 moves to the right, it drives the first gear 4332 to rotate in the opposite direction (e.g., clockwise), thus directly converting the reciprocating linear motion into the forward or reverse rotation of the first gear 4332. Subsequently, the first output shaft 4335, which is coaxially fixedly connected to the first gear 4332, rotates forward or reverse, and transmits this forward or reverse motion to the second bevel gear meshing perpendicularly with it through the first bevel gear at its end. The second bevel gear drives the second output shaft 4336 coaxial with it, ultimately outputting power in the form of forward and reverse rotation.

[0030] In a preferred embodiment, the shaving head 1 includes a shaving box 11 and a spray box 12 fixed on the shaving box 11. The shaving box 11 and the spray box 12 are fixed on the outer shell 2. A drive shaft 33 is rotatably arranged in the middle of the shaving box 11. A shaving drill 13 is rotatably arranged on the side of the shaving box 11 away from the spray box 12 (i.e., the left side of the shaving box 11). The drive shaft 33 is rotatably arranged on the shaving box 11. The left end of the drive shaft 33 is connected to the shaving drill 13. The right end of the drive shaft 33 passes through the spray box 12 and is connected to the second output shaft 4336.

[0031] When there is one burr drill 13, the burr drill 13 is rotatably mounted on the burr box 11 and coaxially fixedly connected to the drive shaft 33; when there are multiple burr drills 13, the multiple burr drills 13 are rotatably mounted on the burr box 11 and connected to the drive shaft 33 through planetary gears.

[0032] Multiple spray columns 14 are installed on the chiseling box 11, each with several spray holes. The spray columns 14 are connected to the spray box 12, and the water outlet pipe 4314 is also connected to the spray box 12. The multiple spray columns 14 are arranged in a ring array around the chiseling drill 13, with the spray holes facing the working area of ​​the chiseling drill 13. The axis of the spray holes is set at an acute angle to the axis of the spray columns 14. In one possible embodiment, the spray holes can also be designed with an inclined angle to allow the water flow to cover the chiseling area, thereby achieving a better dust suppression effect.

[0033] In this embodiment, water from the first piston 431 is continuously pumped into the spray box 12 through the water outlet pipe 4314. The water in the spray box 12 passes through the spray column 14, and the final water pressure causes the water to be sprayed evenly from multiple spray holes on the spray column 14, forming a water curtain covering the chiseling work area. The water curtain can firstly effectively suppress the dust generated during the chiseling process and improve the working environment, and secondly, it can cool the chiseling drill 13 and wash away the debris, keeping the working surface clean, which has high application value.

[0034] The above embodiments are merely preferred embodiments provided to fully illustrate the present utility model, and the protection scope of the present utility model is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present utility model are all within the protection scope of the present utility model.

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