Guniting pump for thin spraying system

Abstract

The utility model provides a slurry spraying pump for a thin spraying system, belongs to the technical field of slurry spraying pumps, and solves the technical problems that an existing slurry spraying pump cannot avoid aggregation of small-particle slurry and the service life is affected due to the fact that a large amount of slurry is attached to the outer wall of the slurry spraying pump. The grouting pump is provided with a grouting pump body, the grouting pump body comprises a pneumatic piston and a grouting cylinder barrel, a piston rod is arranged in the grouting cylinder barrel, the pneumatic piston is connected with the piston rod, the piston rod is connected with a piston body, a feeding port is formed in the end of the grouting cylinder barrel, the side wall of the grouting cylinder barrel is connected with a discharging pipe, and a steel ball is arranged at the feeding port. The grouting cylinder barrel is further connected with a filtering end socket and a stirring and filtering device, the stirring and filtering device comprises a filtering barrel, two stirring and filtering assemblies are arranged in the filtering barrel, each stirring and filtering assembly comprises a rotating telescopic motor, the rotating telescopic motor is connected with a rotating shaft, the rotating shaft is rotationally connected with the filtering barrel, and the rotating shaft located in the filtering barrel is connected with a plurality of stirring blocks; the side wall and the bottom wall of the filter cartridge are filter plates, and the top wall of the filter cartridge is attached to the outer wall of the grouting cylinder barrel.

Description

Technical Field

[0001] The present application belongs to the technical field of spray pumps, and more specifically, relates to a spray pump for a thin-shot system. Background Art

[0002] The spray pump uses compressed air as its power source and takes advantage of the large effective area ratio between the air cylinder and the grouting cylinder, so that the cylinder body can generate a higher injection pressure with a smaller pressure. The grouting pump is suitable for grouting and blocking water, filling gaps, and reinforcing broken rock layers in construction sites such as mines, tunnels, water conservancy, subways, buildings, and bridges.

[0003] When the existing spray pump is performing spraying work, large particles of slurry will enter the spray pump and affect the safety of the spray pump. Although some spray pumps have the function of filtering large particles of slurry, they still cannot avoid the impact of small particles of slurry gathering on the spray pump. At the same time, after the work is completed, a large amount of slurry will adhere to the outer wall of the spray pump, affecting the service life of the spray pump. Utility Model Content

[0004] In order to solve the technical problems that the existing spray pumps cannot avoid the aggregation of small particles of slurry and a large amount of slurry adheres to the outer wall of the spray pump, affecting its service life, a spray pump for a thin spray system is provided which can prevent the aggregation of small particles of slurry and can clean the outer wall of the spray pump.

[0005] To achieve the above-mentioned purpose, the technical solution adopted in the present application is: a spray pump for a thin spraying system, which is provided with a spray pump body, the spray pump body includes a pneumatic piston and a grouting cylinder, a piston rod is provided in the grouting cylinder, the pneumatic piston is connected to one end of the piston rod, and the other end of the piston rod is connected to the piston body, the end of the grouting cylinder is provided with a feed port, the side wall of the grouting cylinder is connected to the discharge pipe, a steel ball is provided at the feed port, a filter head is connected to the position corresponding to the feed port on the outside of the grouting cylinder, and a stirring and filtering device is also connected to the outside of the grouting cylinder, the stirring and filtering device includes a filter cartridge, two stirring and filtering assemblies are provided in the filter cartridge, each stirring and filtering assembly includes a rotating and telescopic motor, the output end of the rotating and telescopic motor is connected to a rotating shaft, the rotating shaft is rotatably connected to the filter cartridge, and a plurality of stirring blocks are connected to the rotating shaft located in the filter cartridge, the side wall and bottom wall of the filter cartridge are both filter plates, and the top wall of the filter cartridge is in contact with the outer wall of the grouting cylinder.

[0006] Preferably, a switch assembly is provided at a position corresponding to the bottom wall of the filter cartridge and the feed port, and the switch assembly includes two switch doors, which are rotatably connected to the bottom wall of the filter cartridge, and a locking mechanism is provided between the two switch doors.

[0007] Preferably, it is further provided with a controller, and a flow sensor is further provided at the discharge pipe, and the controller is electrically connected to the flow sensor, the rotary telescopic motor and the pneumatic piston.

[0008] Compared with the prior art, the beneficial effects of the present invention are:

[0009] The utility model provides a filter cartridge and a filter head to perform secondary filtration on the slurry entering the grouting cylinder, thereby ensuring the safety of the grouting process; by providing a stirring and filtering device, the slurry that has been filtered once can be stirred and mixed to prevent small particles of slurry from agglomerating, thereby further improving the safety of the grouting work; the top wall of the filter cartridge is fitted with the outer wall of the grouting cylinder, and the slurry attached to the outer wall of the grouting cylinder can be scraped off after the grouting work is completed. The switch component can be provided to facilitate the removal of the scraped slurry, and it is also convenient to clean the inner wall of the filter cartridge and the outer wall of the grouting cylinder, thereby extending the service life of the spraying pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0011] Figure 1 It is a structural diagram of the present utility model.

[0012] Explanation of symbols in the figure:

[0013] 1. Spray pump body; 2. Pneumatic piston; 3. Grouting cylinder; 4. Piston rod; 5. Piston body; 6. Feed inlet; 7. Discharge pipe; 8. Steel ball; 9. Filter head; 10. Filter cartridge; 11. Rotary telescopic motor; 12. Rotating shaft; 13. Stirring block; 14. Filter plate; 15. Open / close door. DETAILED DESCRIPTION

[0014] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0015] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0016] like Figure 1As shown, the present application provides a spray pump for a thin-shot system, which is provided with a spray pump body 1, the grouting pump body includes a pneumatic piston 2 and a grouting cylinder 3, a piston rod 4 is provided in the grouting cylinder 3, the pneumatic piston 2 is connected to one end of the piston rod 4, the other end of the piston rod 4 is connected to a piston body 5, a feed port 6 is provided at the end of the grouting cylinder 3, a discharge pipe 7 is connected to the side wall of the grouting cylinder 3, a steel ball 8 is provided at the feed port 6, a filter head 9 is connected to the position corresponding to the feed port 6 on the outside of the grouting cylinder 3, and the grouting A stirring and filtering device is also connected to the outside of the cylinder 3, and the stirring and filtering device includes a filter cartridge 10. Two stirring and filtering components are provided in the filter cartridge 10. Each stirring and filtering component includes a rotating and telescopic motor 11. The output end of the rotating and telescopic motor 11 is connected to a rotating shaft 12. The rotating shaft 12 is rotatably connected to the filter cartridge 10. A plurality of stirring blocks 13 are connected to the rotating shaft 12 located in the filter cartridge 10. The side walls and bottom walls of the filter cartridge 10 are both filter plates 14, and the top wall of the filter cartridge 10 is in contact with the outer wall of the grouting cylinder 3.

[0017] In the technical solution adopted in this embodiment, a pneumatic piston 2 is provided to provide power for the spraying work of the spray pump. Specifically, the pneumatic piston 2 cooperates with the piston rod 4 and the piston body 5 to make the slurry enter the grouting cylinder 3 from the feed port 6 and be discharged from the discharge pipe 7 to complete the spraying work. The steel ball 8 is provided at the feed port 6 to play the role of a one-way valve. When the slurry enters the grouting cylinder 3 from the feed port 6, the steel ball 8 will be lifted up. When no slurry enters, the steel ball 8 will block the feed port 6 under the action of gravity to prevent the slurry in the grouting cylinder 3 from flowing out of the feed port 6. The stirring and filtering device is provided to stir and filter the slurry before the slurry enters the grouting cylinder 3. On the one hand, large particles of slurry can be filtered out to prevent large particles of slurry from clogging the spraying pump, thereby ensuring the safety of the spraying process. On the other hand, by stirring the filtered slurry, small particles in the slurry can be evenly distributed to prevent small particles from gathering and clogging the spraying pump. To further ensure the safety of the spraying process of the spray pump, it is specifically achieved through two stirring and filtering components. The rotating telescopic motor 11 can drive the rotating shaft 12 to rotate, thereby driving multiple stirring blocks 13 to rotate, so that the filtered slurry is more uniform. The side walls and bottom walls of the filter cylinder 10 are filter plates 14 that can play a filtering role to filter large-particle slurry. The filter head 9 is set to perform secondary filtration on the slurry, further ensuring the quality of the slurry entering the grouting cylinder 3. After the spraying work is completed, a large amount of slurry will be attached to the outer wall of the grouting cylinder 3. If it is not cleaned in time, it will affect the service life of the spray pump. Therefore, the top wall of the filter cylinder 10 is set to fit the outer wall of the grouting cylinder 3. After the spraying work is completed, the two rotating telescopic motors 11 simultaneously drive the filter cylinder 10 to extend toward the bottom. At this time, the top wall of the filter cylinder 10 will scrape off the slurry attached to the outer wall of the grouting cylinder 3, thereby extending the service life of the spray pump.

[0018] Furthermore, in this embodiment, a switch assembly is provided at a position corresponding to the bottom wall of the filter cartridge 10 and the feed port 6. The switch assembly includes two switch doors 15. The two switch doors 15 are rotatably connected to the bottom wall of the filter cartridge 10, and a locking mechanism is provided between the two switch doors 15.

[0019] In the technical solution adopted in this embodiment, the slurry scraped from the outer wall of the grouting cylinder 3 will fall onto the bottom wall of the filter cylinder 10. By setting a switch assembly at a position corresponding to the bottom wall of the filter cylinder 10 and the feed port 6, the scraped slurry can be taken out. Specifically, first open the locking mechanism, and then rotate the two switch doors 15 to open the switch doors 15 and take out the scraped slurry. At the same time, after opening the switch doors 15, the cleaning nozzle can be extended into the filter cylinder 10 to clean the inside of the filter cylinder 10. On the one hand, the slurry attached to the inner wall of the filter cylinder 10 can be cleaned, and on the other hand, the outer wall of the grouting cylinder 3 can be further cleaned to ensure the treatment effect of the outer wall of the grouting cylinder 3 and further improve the service life of the spray pump.

[0020] It should be noted that the locking mechanism provided in this embodiment is prior art and will not be described in detail here.

[0021] Furthermore, in this embodiment, a controller is also provided, and a flow sensor is also provided at the discharge pipe 7 . The controller is electrically connected to the flow sensor, the rotary telescopic motor 11 and the pneumatic piston 2 .

[0022] In the technical solution adopted in this embodiment, by setting a flow sensor, the amount of slurry sprayed from the discharge pipe 7 can be detected. When the amount of slurry sprayed is less than the set minimum value, it can be judged that a blockage has occurred at this time. The flow sensor sends a signal to the controller, and the controller controls the rotary telescopic motor 11 and the pneumatic piston 2 to stop working to prevent equipment damage. At the same time, the controller can also realize the automation of the spraying work.

[0023] The working principle of the present invention is as follows: the grouting cylinder 3 of the spraying pump body 1 is extended into the slurry, and then the pneumatic piston 2 and the rotary telescopic motor 11 are started by the controller. The pneumatic piston 2 repeatedly moves to generate negative pressure, so that the slurry passes through the filter cylinder 10 and the filter head 9 and enters the grouting cylinder 3 from the feed port 6. The filter cylinder 10 and the filter head 9 perform secondary filtration on the slurry to ensure the quality of the slurry entering the grouting cylinder 3. The slurry in the grouting cylinder 3 is discharged from the discharge pipe 7 to complete the spraying work. At the same time, the rotary telescopic motor 11 drives the rotating shaft 12 to rotate, thereby driving the multiple stirring blocks 13 to rotate, and enters the filter cylinder 1 0 is stirred and mixed by multiple stirring blocks 13, thereby preventing small particles of slurry from aggregating and ensuring the safety of the spraying process. After the spraying work is completed, the rotating telescopic motor 11 drives the filter barrel 10 to extend, and the slurry attached to the outer wall of the grouting cylinder 3 is scraped off, thereby extending the service life of the spraying pump. Finally, the locking mechanism and the two switch doors 15 are opened to take out the scraped slurry. At the same time, the cleaning nozzle can be extended from the switch door 15 into the interior of the filter barrel 10 to clean the interior of the filter barrel 10. At the same time, the outer wall of the grouting cylinder 3 can also be further cleaned, thereby further extending the service life of the spraying pump.

[0024] The utility model performs secondary filtration on the slurry entering the grouting cylinder 3 by arranging the filter cartridge 10 and the filter head 9, thereby ensuring the safety of the spraying process; by arranging the stirring and filtering device, the slurry that has been filtered once can be stirred and mixed to prevent the aggregation of small particles of slurry, thereby further improving the safety of the spraying work; the top wall of the filter cartridge 10 is fitted with the outer wall of the grouting cylinder 3, and the slurry attached to the outer wall of the grouting cylinder 3 can be scraped off after the spraying work is completed. The switch component can be arranged to facilitate the removal of the scraped slurry, and it is also convenient to clean the inner wall of the filter cartridge 10 and the outer wall of the grouting cylinder 3, thereby extending the service life of the spraying pump.

[0025] In the description of the present invention, it should be understood that the terms "length," "width," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and the like, indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, in the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

[0026] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included in the scope of protection of the present application.

Claims

1. A spray pump for a thin spray system, characterized in that: It is provided with a spray pump body, which includes a pneumatic piston and a grouting cylinder. A piston rod is provided in the grouting cylinder, the pneumatic piston is connected to one end of the piston rod, and the other end of the piston rod is connected to the piston body. A feed port is provided at the end of the grouting cylinder, and a discharge pipe is connected to the side wall of the grouting cylinder. A steel ball is provided at the feed port, and a filter head is connected to the outside of the grouting cylinder at a position corresponding to the feed port. A stirring and filtering device is also connected to the outside of the grouting cylinder, and the stirring and filtering device includes a filter cartridge, and two stirring and filtering assemblies are provided in the filter cartridge. Each stirring and filtering assembly includes a rotary telescopic motor, and the output end of the rotary telescopic motor is connected to a rotating shaft, which is rotatably connected to the filter cartridge. A plurality of stirring blocks are connected to the rotating shaft located in the filter cartridge, and the side wall and bottom wall of the filter cartridge are both filter plates, and the top wall of the filter cartridge is in contact with the outer wall of the grouting cylinder.

2. The spray pump for the thin spray system according to claim 1, characterized in that: A switch assembly is provided at a position corresponding to the bottom wall of the filter cartridge and the feed port. The switch assembly includes two switch doors. The two switch doors are rotatably connected to the bottom wall of the filter cartridge, and a locking mechanism is provided between the two switch doors.

3. The spray pump for the thin spray system according to claim 1, characterized in that: It is also provided with a controller, and the discharge pipe is also provided with a flow sensor. The controller is electrically connected with the flow sensor, the rotary telescopic motor and the pneumatic piston.

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