Anti-blocking cement paste spraying device

Abstract

The utility model provides an anti-blocking cement paste spraying device which aims to solve the problem that cement paste is blocked at a water outlet due to high-viscosity deposition in the prior art. In the construction process of existing equipment, flowing of neat cement paste is blocked, sediment is accumulated at a water outlet, and construction efficiency and equipment operation are affected. Therefore, the automatic cleaning device provided by the utility model has the advantages that sediments at the water outlet are cleaned in real time by utilizing the cooperation of the rotor and the scraper blade, and the occurrence of blockage is prevented. The rotor and the scraping plate work cooperatively with the gear transmission system through the driving motor, continuous cleaning of blockages is achieved, and therefore it is guaranteed that cement paste can flow smoothly, and the construction efficiency and the equipment stability are improved. The device further reduces the requirement for manual cleaning, lowers the equipment maintenance cost, is easy to operate and reliable in operation, meets the requirement of a construction site, and ensures the smooth proceeding of the construction process.

Description

Technical Field

[0001] This utility model relates to the technical field of cement slurry spraying equipment, specifically to an anti-clogging cement slurry spraying device. Background Technology

[0002] During the application of cement paste, clogging at the drain outlets is increasingly hindering construction efficiency and the normal operation of equipment. Cement paste is a highly viscous mixture with poor fluidity, which easily deposits at the drain outlets during its flow, leading to blockages. Due to the accumulation of cement particles, impurities, and deposits, especially during continuous use, the blockage inside the drain outlets gradually worsens, preventing the cement paste from draining smoothly and thus affecting construction progress and work efficiency.

[0003] Most existing cement slurry spraying devices use simple drainage pipes and conveying systems, resulting in a relatively simple design that fails to effectively solve the clogging problem. Due to the lack of an automatic cleaning mechanism, cement slurry continuously accumulates during transport, leading to frequent blockages and requiring frequent manual cleaning, thus reducing construction efficiency and increasing labor intensity. Furthermore, due to the harsh construction environment and high speed requirements, traditional manual cleaning methods are insufficient to completely resolve the clogging problem, and the equipment is complex to operate and has high maintenance costs.

[0004] To improve construction efficiency and equipment operation stability, there is an urgent need for a cement paste spraying device that can automatically detect and clear blockages. Utility Model Content

[0005] To address the aforementioned technical shortcomings, the purpose of this utility model is to provide an anti-clogging cement slurry spraying device to solve the clogging problem at the drainage outlet and reduce manual intervention and equipment maintenance costs.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A clog-resistant cement slurry spraying device includes a chassis, a frame, a water tank, a mixing assembly, and a cleaning spray unit. The frame is fixed to the chassis, the water tank and the cleaning spray unit are mounted on the frame, and the mixing assembly is mounted on the water tank. The bottom of the water tank has a drain outlet, a drain pipe, and a control unit. One end of the drain pipe is fixed to the water tank and connected to the drain outlet. A positioning cylinder is integrally formed on the drain pipe, with its axis perpendicular to the axis of the drain pipe. The side of the positioning cylinder has a first guide hole communicating with the drain pipe, and openings are provided at both ends. The control unit includes a scraper, a rocker arm, a rotor, a first gear, and a second... The system includes a gear, a third gear, and a drive motor; the drive motor is fixed to the water tank; a rotor is rotatably mounted in a positioning cylinder, with the rotor's axis and the positioning cylinder's axis collinear; the rotor has a second guide hole that matches the first guide hole; the first gear is fixed to one end of the rotor and is connected to the drive motor; the second gear is fixed to the other end of the rotor; the third gear is rotatably mounted on the water tank and is connected to the second gear; a scraper is positioned above the drain outlet; a rocker arm is rotatably mounted on the water tank, with one end extending into the water tank and fixedly connected to the scraper, and the other end extending out of the water tank and connected to the third gear.

[0008] Preferably, an eccentric rod is fixedly mounted on the third gear; a guide ring is fixedly mounted on the end of the rocker arm away from the scraper; the cross-sectional shape of the guide ring is elliptical; the guide ring is sleeved on the outside of the eccentric rod.

[0009] Preferably, a slot is provided in the middle of the eccentric rod; an extension rod is slidably inserted into the slot, a spring is fixedly connected to the bottom of the extension rod, and one end of the spring is fixedly connected to the eccentric rod; a limit ring is fixedly provided at the top of the extension rod, and the outer diameter of the limit ring is greater than the width of the guide ring.

[0010] Preferably, a first shaft and a second shaft are fixedly provided at both ends of the rotor, and the axes of the first shaft, the second shaft and the rotor are collinear; the first gear is fixed on the first shaft and the second gear is fixed on the second shaft.

[0011] Preferably, a support rod is fixedly installed on the water tank, and the third gear is rotatably mounted on the support rod.

[0012] Preferably, it also includes a protective cover; the protective cover is fixed to the water tank; the control unit is placed inside the protective cover.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] Effectively prevents clogging: The automatic cleaning device effectively removes cement deposits from the drain outlet, preventing clogging and ensuring smooth flow of cement slurry.

[0015] Improved construction efficiency: The automated cleaning mechanism reduces the need for manual cleaning, lowers equipment downtime and maintenance costs, and improves construction efficiency and long-term stable operation of equipment.

[0016] Reduced maintenance costs: Reduced manual cleaning and equipment downtime due to blockages extend equipment lifespan and lower repair and maintenance costs.

[0017] Enhanced ease of operation at construction sites: The automated design of the cleaning device makes operation simpler and more convenient, adapting to the needs of harsh construction site environments and tight schedules, thereby improving construction efficiency and ease of operation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the water tank in this utility model;

[0020] Figure 3 This is a schematic diagram of the control unit in this utility model;

[0021] Figure 4 This is a structural breakdown diagram of the control unit in this utility model;

[0022] Figure 5 This is a schematic diagram of the scraper structure in this utility model.

[0023] in:

[0024] 1. Mixing assembly; 2. Water tank; 3. Frame; 4. Chassis; 5. Cleaning spray unit; 6. Drain pipe; 7. Positioning cylinder; 8. Protective cover; 9. Drive motor; 10. Scraper; 11. Rocker arm; 12. Eccentric rod; 13. Guide ring; 14. Second gear; 15. Second shaft; 16. Rotor; 17. First shaft; 18. First gear; 19. Third gear; 20. Extension rod. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] like Figures 1 to 5As shown, an anti-clogging cement slurry spraying device includes a chassis 4, a frame 3, a water tank 2, a mixing assembly 1, and a cleaning spray unit 5. The frame 3 is fixed on the chassis 4. The water tank 2 and the cleaning spray unit 5 are mounted on the frame 3. The mixing assembly 1 is mounted on the water tank 2. The bottom of the water tank 2 is provided with a drain outlet, a drain pipe 6, and a control unit. One end of the drain pipe 6 is fixed to the water tank 2 and connected to the drain outlet. The drain pipe 6 is used to discharge cement slurry. A positioning cylinder 7 is integrally provided on the drain pipe 6, and the axis of the positioning cylinder 7 is perpendicular to the axis of the drain pipe 6. The side of the positioning cylinder 7 is provided with a first guide hole communicating with the drain pipe 6, and both ends are provided with openings. The control unit includes a scraper 10, a rocker arm 11, a rotor 16, and a first gear 18. The system consists of a second gear 14, a third gear 19, and a drive motor 9. The drive motor 9 is fixed to the water tank 2. The rotor 16 is rotatably mounted in the positioning cylinder 7, with the axis of the rotor 16 and the axis of the positioning cylinder 7 being collinear. The rotor 16 is provided with a second guide hole that matches the first guide hole. The first gear 18 is fixed to one end of the rotor 16 and is connected to the drive motor 9. The second gear 14 is fixed to the other end of the rotor 16. The third gear 19 is rotatably mounted on the water tank 2 and is connected to the second gear 14. The scraper 10 is positioned above the drain outlet. The rocker arm 11 is rotatably mounted on the water tank 2, with one end extending into the water tank 2 and fixedly connected to the scraper 10, and the other end extending to the outside of the water tank 2 and connected to the third gear 19. After the drive motor 9 starts, it drives the rotor 16 to rotate. When the second guide hole on the rotor 16 is connected to the first guide hole on the positioning cylinder 7, the cement slurry enters the first guide hole of the positioning cylinder 7 from the drain pipe 6 and then flows out through the second guide hole of the rotor 16. When the rotor 16 continues to rotate, the second guide hole disconnects from the first guide hole, and the output of cement slurry is interrupted. When the rotor 16 rotates, it drives the third gear 19 to rotate. The third gear 19 drives the rocker arm 11 and the scraper 10 to move. The scraper 10 scrapes away the high viscosity cement deposited at the drain outlet, making it easier for the cement slurry to flow out.

[0027] Furthermore, an eccentric rod 12 is fixedly mounted on the third gear 19; a guide ring 13 is fixedly mounted on the end of the rocker arm 11 away from the scraper 10; the cross-sectional shape of the guide ring 13 is elliptical; the guide ring 13 is sleeved on the outside of the eccentric rod 12. When the third gear 19 rotates, the eccentric rod 12 moves inside the guide ring 13, pushing the guide ring 13 to reciprocate, thereby causing the scraper 10 to repeatedly scrape the drain outlet. When it is necessary to clean the cement deposited at the drain outlet, the rotor 16 continues to rotate, scraping the cement at the drain outlet with the scraper 10. After cleaning, the rotor 16 rotates until the channel inside the drain pipe 6 is unobstructed, and the rotor 16 stops moving, allowing the cement slurry to be output.

[0028] Furthermore, a slot is provided in the middle of the eccentric rod 12; an extension rod 20 is slidably inserted into the slot, and a spring is fixedly connected to the bottom of the extension rod 20, with one end of the spring fixedly connected to the eccentric rod 12; a limit ring is fixedly provided at the top of the extension rod 20, and the outer diameter of the limit ring is greater than the width of the guide ring 13; the extension rod 20 can extend and retract within the slot of the eccentric rod 12, thus extending the eccentric rod 12, and can be reset under the action of the spring; when the axis of the eccentric rod 12 is not perpendicular to the cross-section of the guide ring 13, i.e., when the third gear 19 is set obliquely, the extension rod 20 ensures that the eccentric rod 12 always moves within the guide ring 13, preventing the eccentric rod 12 from falling out of the guide ring 13.

[0029] Furthermore, a first shaft 17 and a second shaft 15 are fixedly provided at both ends of the rotor 16, and the axes of the first shaft 17, the second shaft 15 and the rotor 16 are collinear; the first gear 18 is fixed on the first shaft 17 and the second gear 14 is fixed on the second shaft 15.

[0030] Furthermore, a support rod is fixedly installed on the water tank 2, and the third gear 19 is rotatably mounted on the support rod.

[0031] Furthermore, it also includes a protective cover 8; the protective cover 8 is fixed on the water tank 2; the control unit is placed inside the protective cover 8, which protects the control unit.

[0032] Working principle:

[0033] Supply of cement paste:

[0034] When the vehicle is in motion, the cement slurry stored in the water tank flows into the positioning cylinder through the drain pipe. The bottom of the drain pipe is equipped with a drain outlet for conveying the cement slurry into the positioning cylinder.

[0035] The synergistic effect of the positioning cylinder and the rotor:

[0036] The positioning cylinder is fixed to the drain pipe, with its axis perpendicular to the drain pipe. The rotor is installed inside the positioning cylinder, with its axis collinear with the cylinder's axis. The rotor's second guide hole corresponds to the positioning cylinder's first guide hole, allowing the cement slurry to flow through these holes as the rotor rotates.

[0037] Flow control of cement paste:

[0038] After the drive motor starts, it drives the rotor to rotate through the first, second, and third gears. During the rotation of the rotor, the connection between the second guide hole and the first guide hole of the positioning cylinder is controlled.

[0039] When the second guide hole is aligned with the first guide hole, the cement slurry flows from the drain pipe into the first guide hole of the positioning cylinder and flows out through the second guide hole inside the rotor.

[0040] As the rotor continues to rotate, the second guide hole and the first guide hole disconnect, and the flow of cement paste stops.

[0041] The collaborative cleaning action of the scraper and the rocker arm:

[0042] The scraper is installed above the drain outlet. Driven by the rotation of a rocker arm and a third gear, the scraper periodically removes clogged cement slurry. A guide ring inside the rocker arm is fitted onto an eccentric rod, causing the scraper to circulate under the push of the eccentric rod. The cooperation between the eccentric rod and the guide ring ensures that the scraper continuously and efficiently cleans the drain outlet.

[0043] Procedures for cleaning drain outlets:

[0044] When cement slurry deposits at the drain outlet and causes blockage, the drive motor starts, driving the rotor to rotate continuously via a system of first, second, and third gears. As the rotor rotates, the second guide hole aligns with the first guide hole of the positioning cylinder, allowing the cement slurry to enter the positioning cylinder and flow out through the second guide hole inside the rotor.

[0045] The continuous cleaning effect of the scraper:

[0046] Meanwhile, the scraper is positioned above the drain outlet and connected to the third gear via a rocker arm. The third gear drives the eccentric rod to perform a periodic oscillating motion. A guide ring is fitted onto the eccentric rod to ensure that the scraper can circulate and remove the deposited high-viscosity cement, preventing blockages.

[0047] Status restoration after cleanup:

[0048] Once the connection between the second guide hole on the rotor and the first guide hole on the positioning cylinder is cleared, the rotor stops rotating, and the output of cement slurry returns to normal.

[0049] At this point, the rotor's channels have been cleared, ensuring the cement slurry can flow continuously and preventing further blockage.

Claims

1. A clog-resistant cement slurry spraying device, comprising a chassis (4), a frame (3), a water tank (2), a mixing assembly (1), and a cleaning spraying unit (5), wherein the frame (3) is fixed on the chassis (4), the water tank (2) and the cleaning spraying unit (5) are mounted on the frame (3), and the mixing assembly (1) is mounted on the water tank (2), characterized in that, The bottom of the water tank (2) is provided with a drain outlet, a drain pipe (6) and a control unit; one end of the drain pipe (6) is fixed to the water tank (2) and connected to the drain outlet; a positioning cylinder (7) is integrally provided on the drain pipe (6), and the axis of the positioning cylinder (7) is perpendicular to the axis of the drain pipe (6); a first guide hole communicating with the drain pipe (6) is provided on the side of the positioning cylinder (7), and openings are provided at both ends; the control unit includes a scraper (10), a rocker arm (11), a rotor (16), a first gear (18), a second gear (14), a third gear (19) and a drive motor (9); the drive motor (9) is fixed to the water tank (2); the rotor (16) is rotatably mounted on the positioning cylinder (7). In the first part, the axis of the rotor (16) and the axis of the positioning cylinder (7) are collinear; the rotor (16) is provided with a second guide hole that matches the first guide hole; the first gear (18) is fixed at one end of the rotor (16) and is connected to the drive motor (9); the second gear (14) is fixed at the other end of the rotor (16); the third gear (19) is rotatably mounted on the water tank (2) and is connected to the second gear (14); the scraper (10) is placed above the drain outlet; the rocker arm (11) is rotatably mounted on the water tank (2), one end of which extends into the water tank (2) and is fixedly connected to the scraper (10), and the other end extends into the outside of the water tank (2) and is connected to the third gear (19).

2. The anti-clogging cement slurry spraying device as described in claim 1, characterized in that, An eccentric rod (12) is fixedly mounted on the third gear (19); a guide ring (13) is fixedly mounted on one end of the rocker arm (11) away from the scraper (10); the cross-sectional shape of the guide ring (13) is elliptical; the guide ring (13) is sleeved on the outside of the eccentric rod (12).

3. The anti-clogging cement slurry spraying device as described in claim 2, characterized in that, The eccentric rod (12) has a slot in the middle; an extension rod (20) is slidably inserted into the slot, and a spring is fixedly connected to the bottom of the extension rod (20), with one end of the spring fixedly connected to the eccentric rod (12); a limit ring is fixedly provided at the top of the extension rod (20), and the outer diameter of the limit ring is greater than the width of the guide ring (13).

4. The anti-clogging cement slurry spraying device as described in claim 1, characterized in that, The rotor (16) has a first shaft (17) and a second shaft (15) fixedly installed at both ends, and the axes of the first shaft (17), the second shaft (15) and the rotor (16) are collinear; the first gear (18) is fixed on the first shaft (17) and the second gear (14) is fixed on the second shaft (15).

5. The anti-clogging cement slurry spraying device as described in claim 1, characterized in that, A support rod is fixedly installed on the water tank (2), and the third gear (19) is rotatably mounted on the support rod.

6. The anti-clogging cement slurry spraying device as described in any one of claims 1 to 5, characterized in that, It also includes a protective cover (8); the protective cover (8) is fixed on the water tank (2); the control unit is placed inside the protective cover (8).

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