A device for controlling the amount of concrete poured into a civil air defense door
By using a polycarbonate measuring cylinder, ruler, and gate valve in conjunction with a motor-driven bevel gear system and scraper rod during the pouring of the air-raid shelter door, the problem of uneven concrete discharge was solved, and precise control of concrete volume and cleaning and maintenance of the equipment were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA FIRST HIGHWAY ENGINEERING CO LTD
- Filing Date
- 2025-07-26
- Publication Date
- 2026-06-23
Smart Images

Figure CN224396072U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of civil defense door pouring technology, and in particular to a device for controlling the amount of concrete poured for civil defense doors. Background Technology
[0002] Civil defense doors generally refer to doors used in civil defense projects. Civil defense projects are a type of air defense building engineering designed to provide places for people to take refuge in emergency situations. They are usually used as refuges in emergency situations such as war and natural disasters. Civil defense doors are an important component of civil defense projects, and their design and function are designed to provide safe entrances and exits.
[0003] An existing patent (publication number: CN221187039U) discloses a concrete pouring device for air-raid shelter doors, relating to the field of air-raid shelter door production technology. This pouring device aims to solve the technical problems of high labor intensity, low efficiency, and lack of leveling function in existing technologies. The pouring device includes a roller conveyor belt, with equidistantly distributed anti-slip particles fixedly connected to the outer side of the roller conveyor belt. An "L"-shaped equipment frame is set at the left end of the roller conveyor belt, and a mixing tank is installed at the right end of the equipment frame. An electric agitator is installed inside the mixing tank. The pouring device utilizes a limit guide plate controlled by a telescopic air rod to adjust its position according to the width and thickness of the air-raid shelter door mold. At the same time, the position of the scraper of the leveling component is also adjusted accordingly to adapt to the air-raid shelter door mold to be poured. It is highly flexible in use and has a wide range of applications. The leveling component scrapes away excess concrete overflowing from the top and sides of the air-raid shelter door mold. The excess concrete falls into the recycling component for timely recycling and reuse.
[0004] However, in the above-mentioned scheme, it was found that during the pouring process of the air-raid shelter door, the operators could not control the amount of concrete discharged, which could easily lead to too much or too little concrete being discharged during the pouring process, resulting in uneven pouring and affecting the quality of the air-raid shelter door. Utility Model Content
[0005] The purpose of this application is to provide a concrete quantity control device for civil defense door pouring, which has the advantages of accurately controlling the amount of concrete discharged during the civil defense door pouring process and reducing operational errors. It solves the problem that the existing technology cannot control the amount of concrete discharged during civil defense door pouring, which leads to the phenomenon that the amount of concrete discharged during pouring is too much or too little, resulting in uneven pouring and affecting the quality of civil defense door.
[0006] The present application provides a concrete pouring quantity control device for civil defense doors, which adopts the following technical solution: It includes a measuring cylinder, a feed pipe fixedly connected to the outer surface of the measuring cylinder, a scale fixedly installed on the outer surface of the measuring cylinder, the measuring cylinder being made of polycarbonate, a discharge pipe fixedly connected to the bottom surface of the measuring cylinder, a gate valve fixedly installed on the outer surface of the discharge pipe, a retainer fixedly installed on the outer surface of the measuring cylinder, a fixing frame fixedly installed on the outer surface of the retainer by bolts, two support frames fixedly connected to the bottom surface of the fixing frame, two universal wheels fixedly installed at the bottom end of each support frame, and reinforcing rods arranged at equal intervals below the fixing frame, with both ends of each reinforcing rod fixedly connected to the outer surface of the corresponding support frame.
[0007] By adopting the above technical solution, in order to achieve precise control of the amount of concrete during the pouring of air-raid shelter doors and reduce human error, a measuring cylinder made of polycarbonate is installed. The measuring cylinder is installed through a connection between a retainer and a fixing frame. A support frame and reinforcing rods are used to support the measuring cylinder, and casters are installed at the bottom of the support frame to facilitate the movement of the entire device. A feed pipe on the surface of the measuring cylinder facilitates the addition of concrete material into the cylinder, and the operator can easily observe the height of the concrete material through the transparent measuring cylinder. A scale on the surface of the measuring cylinder allows the operator to observe the position of the concrete material on the scale to determine the injection volume. When the preset volume is reached, the operator manually opens the gate valve to allow the concrete material to be discharged through the discharge pipe. After discharge, the gate valve is closed. Thus, this device enables precise control of the amount of concrete during the pouring of air-raid shelter doors, reducing human error.
[0008] Preferably, a motor is fixedly connected to the upper surface of the cage, a bevel gear one is fixedly connected to the output shaft of the motor, and a bevel gear two meshes with the outer surface of the bevel gear one.
[0009] By adopting the above technical solution, a motor is installed on the upper surface of the cage, and a bevel gear one is installed on the output shaft of the motor. A bevel gear two is set on the side of the bevel gear one. Through the connection between the bevel gear one and the bevel gear two, the torque output by the motor can change direction.
[0010] Preferably, the inner wall of the second bevel gear is fixedly connected to a connecting pipe, the outer surface of the connecting pipe is rotatably connected to the inner wall of the retainer, and the outer surface of the connecting pipe is rotatably connected to the inner wall of the measuring cylinder.
[0011] By adopting the above technical solution, a connecting pipe is installed on the inner wall of the bevel gear two. When the bevel gear two rotates, the connecting pipe can rotate. The connecting pipe is rotatably connected to the inner wall of the retainer and the measuring cylinder, which can achieve the limiting of the connecting pipe.
[0012] Preferably, a rotating rod is fixedly connected to the bottom surface of the connecting pipe, a connecting member is fixedly connected to the outer surface of the rotating rod, and a scraping rod is fixedly connected to each of the three ends of the connecting member.
[0013] By adopting the above technical solution, the rotating rod is installed on the bottom surface of the connecting pipe, and the connecting pipe is fixed to the rotating rod. A connector is installed on the surface of the rotating rod. The connector has three connecting ends, and a scraper is installed on the corresponding connecting ends. When the connecting pipe rotates, the rotating rod, connector, and scraper can rotate. The scraper is adapted to the inner wall of the measuring cylinder, so that the scraper can scrape off the concrete material adhering to the measuring cylinder.
[0014] Preferably, a second connector is fixedly connected to the outer surface of the rotating rod, and the three ends of the second connector are all fixedly connected to the outer surface of the corresponding scraping rod.
[0015] By adopting the above technical solution, a second connector is installed on the lower half of the rotating rod, and the surface of the second connector also has three connecting ends. The corresponding connecting ends are fixed to the corresponding scraping rod, thereby improving the reliability of the scraping rod after installation.
[0016] Preferably, the outer surface of the connecting pipe is fixedly connected to horizontal pipes arranged at equal intervals, and each horizontal pipe has nozzles arranged at equal intervals fixedly installed on its outer surface.
[0017] By adopting the above technical solution, due to the large depth of the measuring cylinder, the nozzle is positioned high and attached to the inner top wall of the measuring cylinder. The feed pipe is located below the nozzle. When feeding material through the feed pipe, only the required amount needs to be injected, without filling the entire measuring cylinder. Therefore, the nozzle will not be clogged. A horizontal pipe is set on the outer surface of the connecting pipe and connected to the connecting pipe, allowing the cleaning liquid to enter the corresponding horizontal pipe through the connecting pipe. The nozzles are installed on the surface of the horizontal pipe, with the spray direction pointing downwards and each nozzle having a different angle. This allows the three sets of nozzles to spray water onto the measuring cylinder and scraper rod, thereby achieving the cleaning effect on the measuring cylinder and its internal components.
[0018] Preferably, the inner wall of the measuring cylinder is rotatably connected to a fixing ring, and the other end of each horizontal tube is fixedly connected to the inner wall of the fixing ring.
[0019] By adopting the above technical solution, the fixing ring is installed on the inner wall of the measuring cylinder and set as a rotating connection to limit the fixing ring. The inner wall of the fixing ring is fixed to the corresponding horizontal tube, so that when the connecting tube drives the horizontal tube to rotate, the fixing ring can maintain the stability of the horizontal tube.
[0020] Preferably, a support member is fixedly installed on the upper surface of the retainer, and a water inlet pipe is fixedly installed on the inner wall of the support member. The inner wall of the water inlet pipe is rotatably connected to the top end of the connecting pipe.
[0021] By adopting the above technical solution, a support is installed on the upper surface of the cage, and a water inlet pipe is installed on the inner wall of the support. The inner wall of the water inlet pipe is connected to the top of the connecting pipe, which is set as a rotatable connection, so that the water inlet pipe can inject water into the interior of the connecting pipe without affecting the rotation of the first bevel gear and the second bevel gear and the connecting pipe.
[0022] In summary, this application includes at least one of the following beneficial technical effects:
[0023] This device for controlling the amount of concrete poured for air-raid shelter doors comprises a measuring cylinder, a scale, and a gate valve. Concrete is injected into the measuring cylinder through a feed pipe. The transparent measuring cylinder allows operators to easily observe the material level, and the scale on its surface helps them determine the injection volume. When the preset volume is reached, the operator manually opens the gate valve, allowing the concrete to be discharged through the discharge pipe. After discharge, the gate valve is closed. This device enables precise control of the amount of concrete poured during the air-raid shelter door construction process, reducing operational errors. After each work session... Then, cleaning water is introduced into the connecting pipe through the inlet pipe, and the water is sprayed out through the horizontal pipe and the nozzle. The motor is started to make bevel gear one rotate. Through the connection between bevel gear one and bevel gear two, the connecting pipe rotates, which in turn drives the rotating rod to rotate. This allows the rotating rod, connecting part one, scraping rod and connecting part two to rotate. At this time, the nozzle also rotates, thus enabling the device to scrape off the concrete adhering to the inner wall of the measuring cylinder. In conjunction with the nozzle, it achieves the cleaning effect of the measuring cylinder and internal components, preventing the adhering concrete material from affecting the observation of the injection volume in the next use. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the entire application in three dimensions;
[0025] Figure 2 This is a front view of the overall main view of this application;
[0026] Figure 3 This is a structural diagram illustrating the connection relationship between the support frame and the reinforcing rod in this application;
[0027] Figure 4 This is a schematic diagram showing the connection between the measuring cylinder and the feed pipe in this application;
[0028] Figure 5 This is a schematic diagram showing the connection relationship between the feed pipe and the gate valve in this application.
[0029] Figure 6This is a schematic diagram of the connection relationship between bevel gear one and bevel gear two in this application.
[0030] In the picture:
[0031] 1. Measuring cylinder; 2. Feed pipe; 3. Scale; 4. Discharge pipe; 5. Gate valve; 6. Holder; 7. Fixing frame; 8. Support frame; 9. Reinforcing rod; 10. Casters; 11. Motor; 12. Bevel gear one; 13. Bevel gear two; 14. Connecting pipe; 15. Rotating rod; 16. Connector one; 17. Scraper rod; 18. Connector two; 19. Horizontal pipe; 20. Nozzle; 21. Fixing ring; 22. Support; 23. Water inlet pipe. Detailed Implementation
[0032] The following is in conjunction with the appendix Figure 1 - Appendix Figure 6 This application will be described in further detail below.
[0033] Please see Figure 3 , Figure 4 and Figure 5 A device for controlling the amount of concrete poured for a civil defense door includes a measuring cylinder 1, a feed pipe 2 fixedly connected to the outer surface of the measuring cylinder 1, a scale 3 fixedly installed on the outer surface of the measuring cylinder 1, the measuring cylinder 1 being made of polycarbonate, a discharge pipe 4 fixedly connected to the bottom surface of the measuring cylinder 1, a gate valve 5 fixedly installed on the outer surface of the discharge pipe 4, a retainer 6 fixedly installed on the outer surface of the measuring cylinder 1, a fixing frame 7 fixedly installed on the outer surface of the retainer 6 by bolts, two support frames 8 fixedly connected to the bottom surface of the fixing frame 7, two universal wheels 10 fixedly installed at the bottom end of each support frame 8, and reinforcing rods 9 arranged at equal intervals below the fixing frame 7, with both ends of each reinforcing rod 9 fixedly connected to the outer surface of the corresponding support frame 8.
[0034] Please see Figure 1 , Figure 2 and Figure 5To achieve precise control of the concrete volume during the pouring of air-raid shelter doors and reduce human error, a polycarbonate measuring cylinder 1 is installed. The measuring cylinder 1 is mounted via a retainer 6 and a fixing frame 7. A support frame 8 and reinforcing rod 9 support the measuring cylinder 1, and casters 10 are installed at the bottom of the support frame 8 for easy movement. A feed pipe 2 on the surface of the measuring cylinder 1 facilitates the addition of concrete material, and the operator can easily observe the height of the concrete material through the transparent measuring cylinder 1. A scale 3 on the surface of the measuring cylinder 1 allows the operator to observe the position of the concrete material on the scale 3 to determine the injection volume. When the preset volume is reached, the operator manually opens the gate valve 5, allowing the concrete material to be discharged through the discharge pipe 4. After discharge, the gate valve 5 is closed. This device enables precise control of the concrete volume during the pouring of air-raid shelter doors, reducing operational errors.
[0035] Please see Figure 4 , Figure 5 and Figure 6 A device for controlling the amount of concrete poured for a civil defense door is disclosed. A motor 11 is fixedly connected to the upper surface of a retainer 6. A bevel gear 12 is fixedly connected to the output shaft of the motor 11. A bevel gear 13 meshes with the outer surface of the bevel gear 12. The motor 11 is mounted on the upper surface of the retainer 6, and the bevel gear 12 is mounted on the output shaft of the motor 11. The bevel gear 13 is positioned on the side of the bevel gear 12. Through the connection between the bevel gear 12 and the bevel gear 13, the torque output by the motor 11 can change direction. A connecting pipe 14 is fixedly connected to the inner wall of the bevel gear 13. When the bevel gear 13 rotates, the connecting pipe 14 can rotate. The outer surface of the connecting pipe 14 is rotatably connected to the inner wall of the retainer 6. The connecting pipe 14 is rotatably connected to both the retainer 6 and the inner wall of the measuring cylinder 1, which can limit the movement of the connecting pipe 14.
[0036] Please see Figure 5 and Figure 6A rotating rod 15 is fixedly connected to the bottom surface of the connecting pipe 14. A connector 16 is fixedly connected to the outer surface of the rotating rod 15. A scraper rod 17 is fixedly connected to each of the three ends of the connector 16. The rotating rod 15 is installed on the bottom surface of the connecting pipe 14, and the connecting pipe 14 is fixed to the rotating rod 15. The connector 16 is installed on the surface of the rotating rod 15. The connector 16 has three connecting ends, and a scraper rod 17 is installed at each corresponding connecting end, so that when the connecting pipe 14 rotates, the rotating rod 15, the connector 16, and the scraper rod 17 can... The rotating rod 15 is adapted to the inner wall of the measuring cylinder 1, so that the scraper rod 17 can scrape off the concrete material adhering to the measuring cylinder 1. A connecting piece 2 18 is fixedly connected to the outer surface of the rotating rod 15. The three ends of the connecting piece 2 18 are fixedly connected to the outer surface of the corresponding scraper rod 17. The connecting piece 2 18 is installed on the lower half of the rotating rod 15, and the surface of the connecting piece 2 18 also has three connecting ends. The corresponding connecting ends are fixed to the corresponding scraper rod 17, thereby improving the reliability of the scraper rod 17 after installation.
[0037] Please see Figure 5 and Figure 6The outer surface of the connecting pipe 14 is fixedly connected to horizontal pipes 19 arranged at equal intervals. Each horizontal pipe 19 has a nozzle 20 arranged at equal intervals fixedly installed on its outer surface. Due to the large depth of the measuring cylinder 1, the nozzles 20 are positioned high, attached to the inner top wall of the measuring cylinder 1. The feed pipe 2 is located below the nozzles 20. When feeding material through the feed pipe 2, only the required amount needs to be injected, without filling the entire measuring cylinder 1. Therefore, the nozzles 20 will not become clogged. The horizontal pipes 19 are set on the outer surface of the connecting pipe 14 and connected to it, allowing cleaning water to enter the corresponding horizontal pipe 19 through the connecting pipe 14. The nozzles 20 are installed on the surface of the horizontal pipes 19, spraying downwards. Each nozzle 20 has a different angle, allowing the three sets of nozzles 20 to spray water onto the measuring cylinder 1 and scraper rod 17, achieving a cleaning effect on the measuring cylinder 1 and its internal components. The inner wall of the measuring cylinder 1 rotates... A fixed ring 21 is connected to the moving connection. The other end of each horizontal tube 19 is fixedly connected to the inner wall of the fixed ring 21. The fixed ring 21 is installed on the inner wall of the measuring cylinder 1 and is set as a rotating connection to limit the fixed ring 21. The inner wall of the fixed ring 21 is fixed to the corresponding horizontal tube 19 so that when the connecting tube 14 drives the horizontal tube 19 to rotate, the fixed ring 21 can keep the horizontal tube 19 stable. A support member 22 is fixedly installed on the upper surface of the retainer 6. A water inlet pipe 23 is fixedly installed on the inner wall of the support member 22. The inner wall of the water inlet pipe 23 is rotatably connected to the top end of the connecting tube 14. The support member 22 is installed on the upper surface of the retainer 6, and the water inlet pipe 23 is installed on the inner wall of the support member 22. The inner wall of the water inlet pipe 23 is connected to the top end of the connecting tube 14 and is set as a rotating connection so that the water inlet pipe 23 can inject water into the interior of the connecting tube 14 without affecting the rotation of the bevel gear 12, which drives the bevel gear 23 and the connecting tube 14.
[0038] The implementation principle of this application embodiment is as follows: When pouring concrete for the air-raid shelter door, firstly, the device is pushed to the designated position by the retainer 6, fixing frame 7, support frame 8 and caster wheel 10. Concrete material is injected into the measuring cylinder 1 through the feed pipe 2. When it is necessary to observe the material height, the motor 11 is started to drive the bevel gear 12 to rotate. Through the connection between the bevel gear 12 and the bevel gear 13, the bevel gear 13 drives the connecting pipe 14 to rotate, thereby enabling the connecting pipe 14 to drive the rotating rod 15 to rotate. Through the fixing of the rotating rod 15, the connecting part 16, the scraping rod 17 and the connecting part 18, the scraping rod 17 can perform a scraping operation on the measuring cylinder 1 to scrape off the adhering material. At this time, the measuring cylinder 1 made of polycarbonate material, together with the scale 3, makes it easy for the operator to observe and determine the amount of concrete material inside the measuring cylinder 1. When the preset amount is reached, the operator manually opens the gate valve 5. This allows concrete material to be discharged through the discharge pipe 4. After discharge, the operator can close the gate valve 5. This enables the device to accurately control the amount of concrete during the pouring of the air-raid shelter door, reducing operational errors. After each work session, cleaning water is injected into the connecting pipe 14 through the water inlet pipe 23. At this time, the cleaning water is sprayed out through the horizontal pipe 19 and the nozzle 20. Then, the motor 11 is restarted to make the rotating rod 15 rotate. Through the fixation of the rotating rod 15, the first connector 16, the scraper rod 17 and the second connector 18, the scraper rod 17 can perform a scraping operation on the measuring cylinder 1. Through the cooperation of the scraper rod 17 and the nozzle 20, the concrete material adhering to the inner wall of the measuring cylinder 1 and the surface of the internal components can be cleaned away, thereby achieving the cleaning effect of the measuring cylinder 1 and preventing the concrete material adhering to the inner wall of the measuring cylinder 1 from affecting the observation of the injection volume during the next use.
[0039] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.
Claims
1. A device for controlling the amount of concrete poured for air-raid shelter doors, comprising a measuring cylinder (1), characterized in that: The outer surface of the measuring cylinder (1) is fixedly connected to the feed pipe (2), and the outer surface of the measuring cylinder (1) is fixedly installed with a scale (3). The measuring cylinder (1) is made of polycarbonate. The bottom surface of the measuring cylinder (1) is fixedly connected to the discharge pipe (4). The outer surface of the discharge pipe (4) is fixedly installed with a gate valve (5). The outer surface of the measuring cylinder (1) is fixedly installed with a retainer (6). The outer surface of the retainer (6) is fixedly installed with a fixing bracket (7) by bolts. The bottom surface of the fixing bracket (7) is fixedly connected with two support brackets (8). The bottom end of each support bracket (8) is fixedly installed with two universal wheels (10). The bottom of the fixing bracket (7) is provided with reinforcing rods (9) arranged at equal intervals. The two ends of each reinforcing rod (9) are fixedly connected to the outer surface of the corresponding support bracket (8).
2. The device for controlling the amount of concrete poured for a civil defense door according to claim 1, characterized in that: The upper surface of the retainer (6) is fixedly connected to a motor (11), the output shaft of the motor (11) is fixedly connected to a bevel gear one (12), and the outer surface of the bevel gear one (12) is meshed with a bevel gear two (13).
3. The device for controlling the amount of concrete poured for a civil defense door according to claim 2, characterized in that: The inner wall of the second bevel gear (13) is fixedly connected to a connecting pipe (14), the outer surface of the connecting pipe (14) is rotatably connected to the inner wall of the retainer (6), and the outer surface of the connecting pipe (14) is rotatably connected to the inner wall of the measuring cylinder (1).
4. The device for controlling the amount of concrete poured for a civil defense door according to claim 3, characterized in that: A rotating rod (15) is fixedly connected to the bottom surface of the connecting pipe (14), and a connecting piece (16) is fixedly connected to the outer surface of the rotating rod (15). A scraping rod (17) is fixedly connected to each of the three ends of the connecting piece (16).
5. The device for controlling the amount of concrete poured for a civil defense door according to claim 4, characterized in that: The outer surface of the rotating rod (15) is fixedly connected to a connecting piece two (18), and the three ends of the connecting piece two (18) are fixedly connected to the outer surface of the corresponding scraping rod (17).
6. The device for controlling the amount of concrete poured for a civil defense door according to claim 3, characterized in that: The outer surface of the connecting pipe (14) is fixedly connected to horizontal pipes (19) arranged at equal intervals, and each horizontal pipe (19) has nozzles (20) arranged at equal intervals fixedly installed on its outer surface.
7. The device for controlling the amount of concrete poured for a civil defense door according to claim 6, characterized in that: The inner wall of the measuring cylinder (1) is rotatably connected to a fixing ring (21), and the other end of each of the horizontal tubes (19) is fixedly connected to the inner wall of the fixing ring (21).
8. The device for controlling the amount of concrete poured for a civil defense door according to claim 3, characterized in that: A support member (22) is fixedly installed on the upper surface of the retainer (6), and a water inlet pipe (23) is fixedly installed on the inner wall of the support member (22). The inner wall of the water inlet pipe (23) is rotatably connected to the top end of the connecting pipe (14).