A type of recycled aggregate concrete crack-resistant spraying equipment

Abstract

This utility model relates to the technical field of concrete spraying equipment, and discloses a recycled aggregate concrete crack-resistant spraying device, including a machine body. A stirring mechanism is installed on the top right side of the machine body for stirring the solvent. A scraping mechanism is installed on the top left side of the machine body for scraping off excess concrete. The stirring mechanism includes a stirring tank located on the top of the machine body. A mixing tank is installed on the top left side of the stirring tank. A connecting rod is installed inside the mixing tank, and stirring rods are fixedly connected to the bottom left and right sides of the connecting rod. A baffle is fixedly connected to the top of the mixing tank. In this utility model, the starting motor drives the rotating shaft and bevel gear two, causing the stirring disc to rise and compress the spring to store energy. When the motor reverses, the spring releases energy to help the stirring disc descend, forming a reciprocating motion. Simultaneously, the rotating rod drives the stirring rod to rotate.

Description

Technical Field

[0001] This utility model relates to the technical field of concrete spraying equipment, and in particular to a crack-resistant spraying equipment for recycled aggregate concrete. Background Technology

[0002] The recycled aggregate concrete crack-resistant spraying equipment is a specialized construction device developed specifically for the characteristics of recycled aggregate concrete. Its core function is to improve the crack resistance of concrete through a spraying process. This equipment typically integrates material mixing, conveying, and spraying systems. It can uniformly mix crack-resistant agents, fibers, or other reinforcing materials with recycled aggregate concrete and then apply the mixture to the target surface using high-pressure spraying. By precisely controlling the spraying pressure, flow rate, and material ratio, a crack-resistant protective layer is formed on or inside the recycled aggregate concrete. This effectively inhibits the formation of shrinkage cracks caused by the high porosity and water absorption of recycled aggregates, while also improving the integrity and durability of the concrete. It is suitable for crack-resistant protection construction of recycled aggregate concrete projects in roads, bridges, and building walls, and features high construction efficiency, high material utilization, and significant crack-resistant effects.

[0003] A search revealed Chinese Patent Publication No. CN222295712U, which discloses a concrete spraying equipment, including a mixing tank, a spray head, a mixing device, and a positioning device. The positioning device includes a mounting base plate, a longitudinal frame, a longitudinal positioning block, a transverse frame, a transverse positioning seat, a positioning screw, a positioning motor, a longitudinal assembly, and a lifting assembly. The longitudinal frame is connected to the mounting base plate via the lifting assembly. The longitudinal positioning block is slidably connected to the longitudinal frame. The transverse frame is fixedly connected to the longitudinal positioning block. The transverse positioning seat is fixedly connected to the mixing tank and slidably connected to the transverse frame. Through the operation of the longitudinal assembly, the longitudinal positioning block is driven to slide longitudinally along the longitudinal frame, thereby positioning the transverse frame in the longitudinal direction. Furthermore, through the operation of the positioning motor, the positioning screw is driven to rotate, thereby driving the transverse positioning seat to slide laterally along the transverse frame, thus positioning the spray head and further preventing spraying position deviation. However, if a solvent-containing crack-resistant spraying material is used, failure to mix it properly will cause the solvent to accumulate locally. During the evaporation process, bubbles or pores will form, reducing the density of the concrete and affecting its use. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a recycled aggregate concrete crack-resistant spraying device, which aims to improve the problem in the prior art that if solvent-containing crack-resistant spraying materials are used, the solvent will accumulate locally if not stirred and mixed, and bubbles or pores will be formed during the evaporation process, reducing the density of the concrete and affecting its use.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a recycled aggregate concrete crack-resistant spraying device, comprising a machine body, a stirring mechanism installed on the top right side of the machine body for stirring the solvent, a scraping mechanism installed on the top left side of the machine body for scraping off excess concrete, the stirring mechanism comprising a stirring tank located on the top of the machine body, a mixing tank installed on the top left side of the stirring tank, a connecting rod provided inside the mixing tank, stirring rods fixedly connected to the bottom left and right sides of the connecting rod, a baffle fixedly connected to the top of the mixing tank, a rotating rod rotatably connected to the middle of the baffle, a bevel gear fixedly connected to the left end of the rotating rod, a connecting rope provided on the right side of the rotating rod, a stirring disc fixedly connected to the bottom of the connecting rope, a spring fixedly connected to the bottom of the stirring disc, and a drive assembly installed on the top of the mixing tank.

[0006] Through the above technical solution: the rotating rod rotates and winds the connecting rope, thereby causing the mixing plate to rise. At this time, the spring is compressed to store energy. When the motor reverses, the spring releases the stored energy, assisting the mixing plate to descend, thus forming a reciprocating motion. At the same time, the rotating rod drives the rotation of the mixing rod through the connecting rod, effectively mixing the aggregate in the mixing bucket, ensuring the uniform mixing of concrete aggregate and solvent.

[0007] As a further description of the above technical solution:

[0008] The drive assembly includes a motor, which is located on the top of the mixing tank. The output end of the motor is fixedly connected to a rotating shaft, and a second bevel gear is fixedly connected to the outside of the rotating shaft. The first bevel gear meshes with the second bevel gear.

[0009] The above technical solution involves using the kinetic energy of a motor to drive a rotating shaft, and installing a second bevel gear on the rotating shaft to drive the second bevel gear to rotate.

[0010] As a further description of the above technical solution:

[0011] The scraping mechanism includes a threaded rod, which is rotatably connected to the top left side of the machine body. A knob is fixedly connected to the top of the threaded rod. A threaded block is threadedly connected to the outer side of the threaded rod. A scraper is fixedly connected to the rear side of the threaded block. A limit block is fixedly connected to the rear side of the threaded block. A mounting plate is fixedly connected to the top rear side of the machine body.

[0012] Through the above technical solution: the operator must rotate the knob to make the threaded rod rotate synchronously. Since the threaded block and the threaded rod are connected by threads, and the cooperation between the limit block and the mounting plate restricts the rotation of the threaded block, the threaded block can move in a straight line in the vertical direction. The movement of the threaded block drives the top of the scraper body on the rear side to move horizontally, thereby scraping off the excess concrete aggregate to ensure the flatness of the surface.

[0013] As a further description of the above technical solution:

[0014] A sliding groove is provided on the outer side of the body, the sliding groove is opened on the rear side of the mounting plate, and the front side of the limiting block is slidably connected to the inner wall of the sliding groove.

[0015] The above technical solution involves creating a sliding groove on the mounting plate, which can cooperate with the limiting block.

[0016] As a further description of the above technical solution:

[0017] A feeding trough is provided on the outside of the machine body, and the feeding trough is located on the top left side of the mixing tank.

[0018] The above technical solution involves installing a feed trough on the mixing tank for feeding materials.

[0019] As a further description of the above technical solution:

[0020] A support plate is provided at the top of the machine body, and the front side of the support plate is fixedly connected to the rear side of the motor.

[0021] The above technical solution involves installing a support plate on the machine body, which is used to fix the motor.

[0022] As a further description of the above technical solution:

[0023] A discharge pipe is provided on the outside of the machine body. One end of the discharge pipe is connected to the lower right side of the outer wall of the mixing tank, and the other end of the discharge pipe is connected to the top of the mixing tank.

[0024] The above technical solution involves using a discharge pipe to connect a mixing tank and a stirring tank.

[0025] As a further description of the above technical solution:

[0026] A pipe is provided on the outside of the machine body, and the other end of the pipe is connected to a spray gun.

[0027] The above technical solution involves installing pipes on the machine body and spray guns on the pipes.

[0028] This utility model has the following beneficial effects:

[0029] 1. In this utility model, the starting motor drives the rotating shaft and bevel gear II to raise the mixing plate and compress the spring to store energy. When the motor reverses, the spring releases energy to help the mixing plate descend, forming a reciprocating motion. At the same time, the rotating rod drives the mixing rod to rotate, stirring the aggregate in the mixing bucket, so as to achieve uniform mixing of concrete aggregate and solvent.

[0030] 2. In this utility model, when the operator turns the knob, the threaded rod will rotate, and the threaded block will move up and down in a straight line, driving the scraper to move and scrape off excess concrete aggregate to ensure a smooth surface. Attached Figure Description

[0031] Figure 1 This is a front view of a recycled aggregate concrete crack-resistant spraying device proposed in this utility model;

[0032] Figure 2 This is a perspective view of a recycled aggregate concrete crack-resistant spraying device proposed in this utility model;

[0033] Figure 3 This is a partial structural diagram of a recycled aggregate concrete crack-resistant spraying device proposed in this utility model;

[0034] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0035] Figure 5 This is a schematic diagram of the scraping mechanism of a recycled aggregate concrete crack-resistant spraying equipment proposed in this utility model.

[0036] Legend:

[0037] 1. Machine body; 2. Stirring mechanism; 201. Stirring tank; 202. Mixing tank; 203. Connecting rod; 204. Stirring rod; 205. Baffle; 206. Rotating rod; 207. Bevel gear one; 208. Connecting rope; 209. Stirring disc; 210. Spring; 211. Drive assembly; 2111. Motor; 2112. Rotating shaft; 2113. Bevel gear two; 3. Scraping mechanism; 301. Threaded rod; 302. Threaded block; 303. Scraper; 304. Knob; 305. Limiting block; 306. Mounting plate; 4. Sliding groove; 5. Feed chute; 6. Bearing plate; 7. Discharge pipe; 8. Pipe; 9. Spray gun. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0039] Reference Figure 1 , Figure 3 and Figure 4 This utility model provides an embodiment of a recycled aggregate concrete crack-resistant spraying device, comprising a body 1, a stirring mechanism 2 installed on the top right side of the body 1 for stirring the solvent, and a scraping mechanism 3 installed on the top left side of the body 1 for scraping off excess concrete. The stirring mechanism 2 includes a stirring tank 201, which is located on the top of the body 1. A mixing tank 202 is installed on the top left side of the stirring tank 201. A connecting rod 203 is provided inside the mixing tank 202. Stirring rods 204 are fixedly connected to the bottom left and right sides of the connecting rod 203. A baffle 205 is fixedly connected to the top of the mixing tank 202. A rotating rod 206 is rotatably connected to the middle of the baffle 205. The rotating rod 206 can rotate in the middle of the baffle 205. A bevel gear 207 is fixedly connected to the left end of the rotating rod 206. A connecting rope 208 is provided on the side for winding and tightening. A stirring plate 209 is fixedly connected to the bottom of the connecting rope 208. A spring 210 is fixedly connected to the bottom of the stirring plate 209 for compression and rebound. A drive assembly 211 is installed on the top of the mixing tank 202. The drive assembly 211 includes a motor 2111. The motor 2111 is located on the top of the mixing tank 202. A rotating shaft 2112 is fixedly connected to the output end of the motor 2111. The kinetic energy of the motor 2111 drives the rotating shaft 2112 to rotate. A bevel gear 2113 is fixedly connected to the outside of the rotating shaft 2112, which will drive the bevel gear 2113 fixed thereto to rotate. The bevel gear 1 207 meshes with the bevel gear 2113. A support plate 6 is provided at the top of the machine body 1. The front side of the support plate 6 is fixedly connected to the rear side of the motor 2111. The support plate 6 is used to fix the motor 2111.

[0040] Specifically, during the concrete aggregate mixing process, the start of the motor 2111 drives the rotation of the rotating shaft 2112 and the second bevel gear 2113. Due to the meshing of the second bevel gear 2113 and the first bevel gear 207, the rotating rod 206 rotates and winds the connecting rope 208, thereby causing the mixing disc 209 to rise. At this time, the spring 210 is compressed to store energy. When the motor 2111 reverses, the spring 210 releases the stored energy, assisting the mixing disc 209 to descend, thus forming a reciprocating motion. At the same time, the rotating rod 206 drives the rotation of the mixing rod 204 through the connecting rod 203, effectively mixing the aggregate in the mixing bucket 202, ensuring the uniform mixing of concrete aggregate and solvent. The top of the mechanical device 1 is equipped with a support plate 6, the front end of which is fixedly connected to the rear end of the motor 2111. The function of the support plate 6 is to stabilize the motor 2111.

[0041] Reference Figure 1 , Figure 2 and Figure 5 The scraping mechanism 3 includes a threaded rod 301, which is rotatably connected to the top left side of the machine body 1. A knob 304 is fixedly connected to the top of the threaded rod 301. Rotating the knob 304 will drive the threaded rod 301 to rotate. A threaded block 302 is threadedly connected to the outer side of the threaded rod 301. A scraper 303 is fixedly connected to the rear side of the threaded block 302. A limit block 305 is fixedly connected to the rear side of the threaded block 302. A mounting plate 306 is fixedly connected to the rear side of the top of the machine body 1. A sliding groove 4 is provided on the outer side of the machine body 1. The sliding groove 4 is opened on the rear side of the mounting plate 306. The front side of the limit block 305 is slidably connected to the inner wall of the sliding groove 4. The limit block 305 plays a limiting role.

[0042] Specifically, the operator needs to turn knob 304 to cause threaded rod 301 to rotate synchronously. Since threaded block 302 is threadedly connected to threaded rod 301, and the cooperation between limit block 305 and mounting plate 306 restricts the rotation of threaded block 302, threaded block 302 can move vertically in a straight line. The movement of threaded block 302 drives scraper 303 on the rear side to move horizontally along the top of machine body 1, thereby scraping away excess concrete aggregate to ensure surface flatness. A sliding groove 4 is provided on the outer side of machine body 1, which is opened on the rear side of mounting plate 306. The front side of limit block 305 is slidably connected to the inner wall of sliding groove 4 to achieve the limiting function.

[0043] Reference Figure 1 and Figure 3The outer side of the machine body 1 is provided with a feeding trough 5 for feeding. The feeding trough 5 is located on the top left side of the mixing tank 202. The outer side of the machine body 1 is provided with a discharge pipe 7 for discharging. One end of the discharge pipe 7 is connected to the lower right side of the outer wall of the mixing tank 202, and the other end of the discharge pipe 7 is connected to the top of the mixing tank 201. The outer side of the machine body 1 is provided with a pipe 8, and the other end of the pipe 8 is connected to a spray gun 9.

[0044] Specifically, the feed trough 5 is located on the upper left side of the mixing tank 202 and is used for feeding. The machine body 1 is equipped with a discharge pipe 7 for discharging the mixed material. One end of the discharge pipe 7 is connected to the lower right side of the outer wall of the mixing tank 202, while the other end is connected to the top of the mixing tank 201. In addition, the outer casing of the device is also equipped with a pipe 8, the other end of which is connected to a spray gun 9.

[0045] Working principle: In the mixing of concrete aggregates, the starting motor 2111 drives the rotating shaft 2112 and the second bevel gear 2113 to rotate. Since the second bevel gear 2113 meshes with the first bevel gear 207, it drives the rotating rod 206 to rotate and wind the connecting rope 208, causing the mixing disc 209 to rise. The spring 210 is compressed and stores energy. When the motor 2111 reverses, the spring 210 releases energy to assist the mixing disc 209 to descend, forming a reciprocating motion. At the same time, the rotating rod 206 drives the mixing rod 204 to rotate through the connecting rod 203, which stirs the aggregate in the mixing bucket 202, realizing the uniform mixing of concrete aggregates and solvents, which is convenient for subsequent use.

[0046] When scraping off excess concrete aggregate, the operator turns the knob 304, causing the threaded rod 301 to rotate synchronously. Since the threaded block 302 is threadedly connected to the threaded rod 301, and the limiting block 305 cooperates with the mounting plate 306 to restrict the rotation of the threaded block 302, the threaded block 302 moves vertically. The threaded block 302 drives the scraper 303 on the rear side to move horizontally along the top of the machine body 1 to scrape off excess concrete aggregate and ensure a smooth surface.

[0047] Finally, it should be noted that the above description is only 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 recycled aggregate concrete crack-resistant spraying device, comprising a body (1), characterized in that: A stirring mechanism (2) is installed on the top right side of the machine body (1), which is used to stir the solvent. A scraping mechanism (3) is installed on the top left side of the machine body (1), which is used to scrape off excess concrete. The stirring mechanism (2) includes a stirring tank (201), which is located on the top of the machine body (1). A mixing tank (202) is installed on the top left side of the stirring tank (201). A connecting rod (203) is provided inside the mixing tank (202). Stirring rods (204) are fixedly connected to the bottom left and right sides of the connecting rod (203). A baffle (205) is fixedly connected to the top of the mixing tank (202). A rotating rod (206) is rotatably connected to the middle of the baffle (205). A bevel gear (207) is fixedly connected to the left end of the rotating rod (206). A connecting rope (208) is provided on the right side of the rotating rod (206). A stirring plate (209) is fixedly connected to the bottom of the connecting rope (208). A spring (210) is fixedly connected to the bottom of the stirring plate (209). A drive assembly (211) is installed on the top of the mixing tank (202).

2. The recycled aggregate concrete crack-resistant spraying equipment according to claim 1, characterized in that: The drive assembly (211) includes a motor (2111), which is located on the top of the mixing tank (202). The output end of the motor (2111) is fixedly connected to a rotating shaft (2112), and a second bevel gear (2113) is fixedly connected to the outside of the rotating shaft (2112). The first bevel gear (207) meshes with the second bevel gear (2113).

3. The recycled aggregate concrete crack-resistant spraying equipment according to claim 1, characterized in that: The scraping mechanism (3) includes a threaded rod (301), which is rotatably connected to the top left side of the body (1). A knob (304) is fixedly connected to the top of the threaded rod (301). A threaded block (302) is threadedly connected to the outer side of the threaded rod (301). A scraper (303) is fixedly connected to the rear side of the threaded block (302). A limit block (305) is fixedly connected to the rear side of the threaded block (302). A mounting plate (306) is fixedly connected to the top rear side of the body (1).

4. The recycled aggregate concrete crack-resistant spraying equipment according to claim 3, characterized in that: The outer side of the body (1) is provided with a sliding groove (4), which is opened on the rear side of the mounting plate (306). The front side of the limiting block (305) is slidably connected to the inner wall of the sliding groove (4).

5. The recycled aggregate concrete crack-resistant spraying equipment according to claim 1, characterized in that: The outer side of the machine body (1) is provided with a feeding trough (5), which is located on the top left side of the mixing tank (202).

6. The recycled aggregate concrete crack-resistant spraying equipment according to claim 2, characterized in that: The top of the body (1) is provided with a support plate (6), and the front side of the support plate (6) is fixedly connected to the rear side of the motor (2111).

7. The recycled aggregate concrete crack-resistant spraying equipment according to claim 1, characterized in that: The outer side of the machine body (1) is provided with a discharge pipe (7), one end of the discharge pipe (7) is connected to the lower right side of the outer wall of the mixing tank (202), and the other end of the discharge pipe (7) is connected to the top of the stirring tank (201).

8. The recycled aggregate concrete crack-resistant spraying equipment according to claim 1, characterized in that: The outer side of the body (1) is provided with a pipe (8), and the other end of the pipe (8) is connected to a spray gun (9).

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