A liquid metering start / stop leak prevention device

Abstract

This utility model relates to a liquid metering start-stop leak-proof device, belonging to the field of concrete admixture production technology. It includes a raw material tank, with a mounting top plate fixedly installed on its surface. A support frame is fixedly installed at the bottom of the mounting top plate, and a leak-proof component is fixedly installed on one side of the support frame. The leak-proof component includes a movable cylinder fixedly installed on one side of the support frame, with a receiving tray at the movable end of the movable cylinder. A retrieval port is provided on one side of the support frame. This liquid metering start-stop leak-proof device, by setting a mounting top plate on the surface of the raw material tank, a support frame at the bottom of the mounting top plate, a movable cylinder on one side of the support frame, and a receiving tray at the movable end of the movable cylinder, allows the receiving tray to move to below the liquid outlet pipe after feeding stops, collecting any dripping or leaking liquid at the bottom of the outlet pipe and preventing it from dripping outside the container.

Description

Technical Field

[0001] This utility model relates to the field of concrete admixture production technology, specifically a liquid metering start-stop leak prevention device. Background Technology

[0002] Concrete admixtures are materials added before or during concrete mixing to improve the properties of fresh and hardened concrete, improve the workability of fresh concrete, regulate the setting time and hardening rate of concrete, improve the durability of concrete, and enhance the mechanical properties of concrete.

[0003] In the production process of liquid concrete admixtures, various raw materials of liquid concrete admixtures need to be added to the preparation container. In order to ensure the accuracy of the proportion of various raw materials, a metering start-stop anti-leakage device is required when the raw materials are discharged. Chinese utility model patent with announcement number CN222610013U discloses a metering start-stop anti-leakage device for concrete admixtures, including a tank body, and a lifting mechanism is provided on the surface of the tank body. The first motor is started to rotate the screw, which in turn rotates the cross block, causing it to move up and down. The first motor then moves the disc upwards. Once the disc reaches a certain position, the feed pipe is connected, and the admixture is injected into the tank. After the admixture injection is complete, the injection is stopped by the control valve on the surface of the discharge pipe. The first motor then moves the disc downwards, causing the sealing ring to move downwards as well. The disc and the sealing ring use pressure to expel the admixture from the tank. When a certain amount of admixture has been expelled, the first motor moves the disc and the sealing ring upwards, creating a pressure difference within the tank and preventing the admixture from being discharged.

[0004] However, during the discharge process, some liquid raw materials remain at the bottom of the discharge pipe of this concrete admixture metering start-stop anti-leakage device. After the output is turned off, these liquid raw materials will still gather together and drip out, affecting the accuracy of the liquid concrete admixture ratio. Therefore, a liquid metering start-stop anti-leakage device is proposed to solve the above-mentioned problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a liquid metering start-stop anti-leakage device, which has the advantages of preventing dripping liquid concrete admixture raw materials from falling into the liquid concrete admixture preparation container, and solves the problem that in common concrete admixture metering start-stop anti-leakage devices, some liquid concrete admixture raw materials remaining at the bottom of the discharge pipe will gather together and drip out.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A liquid metering start-stop leak-proof device includes a raw material tank, a mounting top plate is fixedly installed on the surface of the raw material tank, a support frame is fixedly installed at the bottom of the mounting top plate, and a leak-proof component is fixedly installed on one side of the support frame.

[0008] The leak-proof component includes a movable cylinder fixedly installed on one side of the support frame. The movable cylinder has a receiving tray at its movable end. The support frame has a pick-up port on one side, and a flap is rotatably installed inside the pick-up port.

[0009] Furthermore, a connecting plate is fixedly installed on the movable end of the moving cylinder, and two mounting studs are fixedly installed on one side of the receiving tray. Locking nuts are threaded on the surface of the mounting studs, and the connecting plate is sleeved on the surface of the mounting studs. The locking nuts are located on the side of the connecting plate away from the receiving tray.

[0010] Furthermore, a mounting base plate is fixedly installed at the bottom of the support frame, a liquid outlet pipe is fixedly installed at the bottom of the raw material tank, and a liquid outlet valve is fixedly installed on the surface of the liquid outlet pipe.

[0011] Furthermore, a vacuum pump is fixedly installed on one side of the raw material tank, and a vacuum tube is fixedly installed at the output end of the vacuum pump.

[0012] Furthermore, one end of the vacuum tube is connected to the raw material tank, a vacuum valve is fixedly installed on the surface of the vacuum tube, a feed pipe is fixedly installed on the top of the raw material tank, and a feed valve is fixedly installed on the surface of the feed pipe.

[0013] Furthermore, a high-pressure water pipe is fixedly installed on the top of the raw material tank, and a water pipe valve is fixedly installed on the surface of the high-pressure water pipe.

[0014] Furthermore, a cleaning ring pipe is fixedly installed on the inner top wall of the raw material tank, a high-pressure water pipe is connected to the cleaning ring pipe, and a cleaning nozzle is fixedly installed at the bottom of the cleaning ring pipe.

[0015] Furthermore, a rotating shaft is rotatably mounted on the inner top wall of the raw material tank, and an installation rod is fixedly mounted on the surface of the rotating shaft. A scraper is fixedly mounted on one end of the installation rod, and the scraper contacts the inner side wall of the raw material tank. A rotating motor is fixedly mounted on the top of the raw material tank, and the output shaft of the rotating motor is fixedly connected to the top end of the rotating shaft.

[0016] Compared with the prior art, this utility model provides a liquid metering start-stop leak-proof device, which has the following beneficial effects:

[0017] 1. This liquid metering start-stop leak-proof device features a top plate installed on the surface of the raw material tank, a support frame at the bottom of the top plate, a movable cylinder on one side of the support frame, and a receiving tray at the movable end of the cylinder. After feeding stops, the movable cylinder moves the receiving tray below the outlet pipe to collect any dripping or leaking liquid at the bottom of the outlet pipe, preventing excessive raw materials from dripping into the liquid concrete admixture preparation container. This solves the problem of common liquid concrete admixture metering start-stop leak-proof devices where residual liquid concrete admixture raw materials at the bottom of the outlet pipe accumulate and drip out.

[0018] 2. This liquid metering start-stop leak-proof device has an access port on one side of the support frame. Inside the access port, a flap is rotated and installed. When it is necessary to clean the receiving tray, the flap is opened, and the receiving tray is removed through the access port for cleaning. Attached Figure Description

[0019] Figure 1 This is a front sectional view of the structure of this utility model;

[0020] Figure 2 This is a front sectional view of the support frame of this utility model;

[0021] Figure 3 This is a front sectional view of the receiving tray of this utility model;

[0022] Figure 4 This is a three-dimensional view of the support frame of this utility model.

[0023] In the diagram: 1. Raw material tank; 2. Mounting top plate; 3. Support frame; 301. Pick-up port; 4. Moving cylinder; 41. Connecting plate; 5. Receiving tray; 51. Mounting stud; 52. Locking nut; 6. Flip plate; 7. Mounting base plate; 8. Liquid outlet pipe; 81. Liquid outlet valve; 9. Vacuum pump; 10. Vacuum extraction pipe; 11. Vacuum valve; 12. Feed pipe; 13. Feed valve; 14. High-pressure water pipe; 15. Water pipe valve; 16. Cleaning ring pipe; 17. Cleaning nozzle; 18. Rotating shaft; 19. Mounting rod; 20. Scraper; 21. Rotating motor. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0025] Please see Figures 1 to 4The liquid metering start-stop leak-proof device in this embodiment includes a raw material tank 1, a mounting top plate 2 is fixedly installed on the surface of the raw material tank 1, a support frame 3 is fixedly installed at the bottom of the mounting top plate 2, and a leak-proof component is fixedly installed on one side of the support frame 3.

[0026] The anti-leakage component includes a movable cylinder 4 fixedly installed on one side of the support frame 3. The movable cylinder 4 is provided with a receiving tray 5 at its movable end. A pick-up port 301 is opened on one side of the support frame 3. A flap 6 is rotatably installed inside the pick-up port 301.

[0027] Specifically, the movable cylinder 4 extends, driving the receiving tray 5 to move and collect the dripping liquid raw materials, preventing excessive liquid raw materials from dripping into the liquid concrete admixture preparation container and affecting the raw material ratio of the liquid concrete admixture. During cleaning, the movable cylinder 4 retracts, pushes open the flap 6, and removes the receiving tray 5 through the pick-up port 301 for cleaning.

[0028] Please see Figure 3 In this embodiment, a connecting plate 41 is fixedly installed on the movable end of the moving cylinder 4. Two mounting studs 51 are fixedly installed on one side of the receiving tray 5. Locking nuts 52 are threaded onto the surface of the mounting studs 51. The connecting plate 41 is sleeved on the surface of the mounting studs 51, and the locking nuts 52 are located on the side of the connecting plate 41 away from the receiving tray 5. The receiving tray 5 and the connecting plate 41 are connected together by the locking nuts 52.

[0029] Please see Figure 1 In this embodiment, a mounting base plate 7 is fixedly installed at the bottom of the support frame 3, and a liquid outlet pipe 8 is fixedly installed at the bottom of the raw material tank 1. A liquid outlet valve 81 is fixedly installed on the surface of the liquid outlet pipe 8. The mounting base plate 7 is installed on the top of the liquid concrete admixture preparation container, and the raw materials of the liquid concrete admixture are added into the preparation container through the liquid outlet pipe 8.

[0030] A vacuum pump 9 is fixedly installed on one side of the raw material tank 1, and a vacuum tube 10 is fixedly installed at the output end of the vacuum pump 9.

[0031] Secondly, one end of the vacuum tube 10 is connected to the raw material tank 1. A vacuum valve 11 is fixedly installed on the surface of the vacuum tube 10, and a feed pipe 12 is fixedly installed on the top of the raw material tank 1. A feed valve 13 is fixedly installed on the surface of the feed pipe 12. During feeding, the vacuum pump 9 starts, creating a negative pressure environment in the raw material tank 1. The feed pipe 12 is connected to the container of liquid concrete admixture, and the liquid concrete admixture is sucked into the raw material tank 1. At this time, the liquid outlet valve 81 is closed, and the vacuum valve 11 and the feed valve 13 are opened. During discharge, the liquid outlet valve 81 is opened, the feed valve 13 is closed, and the vacuum pump 9 starts in reverse, injecting air into the raw material tank 1 and discharging the raw material of the liquid concrete admixture into the preparation container of the liquid concrete admixture. When the appropriate dosage is reached, the vacuum pump 9 starts normally, creating a negative pressure environment in the raw material tank 1, and the vacuum valve 11 is closed to prevent the raw material of the liquid concrete admixture from continuing to be output.

[0032] Meanwhile, a high-pressure water pipe 14 is fixedly installed on the top of the raw material tank 1, and a water pipe valve 15 is fixedly installed on the surface of the high-pressure water pipe 14.

[0033] The raw material tank 1 is equipped with a cleaning ring pipe 16 fixedly installed on its inner top wall. A high-pressure water pipe 14 is connected to the cleaning ring pipe 16, and a cleaning nozzle 17 is fixedly installed at the bottom of the cleaning ring pipe 16. When cleaning the raw material tank 1, high-pressure water is connected to the high-pressure water pipe 14, and clean water is sprayed into the raw material tank 1 through the cleaning nozzle 17 to clean the raw material tank 1.

[0034] Secondly, a rotating shaft 18 is rotatably mounted on the inner top wall of the raw material tank 1. An installation rod 19 is fixedly mounted on the surface of the rotating shaft 18, and a scraper 20 is fixedly mounted on one end of the installation rod 19. The scraper 20 contacts the inner side wall of the raw material tank 1. A rotating motor 21 is fixedly mounted on the top of the raw material tank 1, and the output shaft of the rotating motor 21 is fixedly connected to the top end of the rotating shaft 18. The rotating motor 21 drives the rotating shaft 18 to rotate, which in turn drives the installation rod 19 and the scraper 20 to rotate, scraping off the liquid concrete admixture raw material adhering to the inner wall of the raw material tank 1.

[0035] The working principle of the above embodiment is as follows: After the raw materials of liquid concrete admixture are added into the liquid concrete admixture preparation container, the moving cylinder 4 extends and drives the receiving tray 5 to move below the liquid outlet pipe 8 to collect the dripping liquid raw materials, preventing excessive liquid raw materials from dripping into the liquid concrete admixture preparation container. When cleaning, the receiving tray 5 is retracted by the moving cylinder 4, the flap 6 is pushed open, and the receiving tray 5 is removed through the pick-up port 301 for cleaning.

[0036] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods, and any method that achieves the desired beneficial effect can be implemented. Furthermore, all electrical components in this embodiment are electrically connected to the main controller and power supply. The main controller can be a conventional, known device such as a computer that performs control functions. Those skilled in the art can control the electrical components through simple programming, and the existing disclosed power connection technologies are common knowledge in the field. Therefore, this embodiment will not elaborate further on their specific structural composition and working principles.

[0037] It should be noted that the orientations or positional relationships indicated herein are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of facilitating the description of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A liquid metering start-stop anti-leakage device comprising a raw material tank (1), characterized in that: A mounting top plate (2) is fixedly installed on the surface of the raw material tank (1), a support frame (3) is fixedly installed at the bottom of the mounting top plate (2), and a leak-proof component is fixedly installed on one side of the support frame (3). The anti-leakage component includes a movable cylinder (4) fixedly installed on one side of the support frame (3). The movable cylinder (4) is provided with a receiving tray (5) at its movable end. A pick-up port (301) is opened on one side of the support frame (3). A flap (6) is rotatably installed inside the pick-up port (301).

2. A liquid metering start-stop anti-leakage device according to claim 1, characterized in that: The movable cylinder (4) is fixedly mounted with a connecting plate (41) at its movable end. Two mounting studs (51) are fixedly mounted on one side of the receiving tray (5). Locking nuts (52) are threaded onto the surface of the mounting studs (51). The connecting plate (41) is sleeved on the surface of the mounting studs (51). The locking nuts (52) are located on the side of the connecting plate (41) away from the receiving tray (5).

3. A liquid metering start-stop anti-leakage device according to claim 1, characterized in that: The bottom of the support frame (3) is fixedly installed with a mounting base plate (7), the bottom of the raw material tank (1) is fixedly installed with a liquid outlet pipe (8), and the surface of the liquid outlet pipe (8) is fixedly installed with a liquid outlet valve (81).

4. A liquid metering start-stop anti-leakage device according to claim 1, characterized in that: A vacuum pump (9) is fixedly installed on one side of the raw material tank (1), and a vacuum tube (10) is fixedly installed at the output end of the vacuum pump (9).

5. A liquid metering start-stop anti-leakage device according to claim 4, characterized in that: One end of the vacuum tube (10) is connected to the raw material tank (1). A vacuum valve (11) is fixedly installed on the surface of the vacuum tube (10). A feed pipe (12) is fixedly installed on the top of the raw material tank (1). A feed valve (13) is fixedly installed on the surface of the feed pipe (12).

6. A liquid metering start-stop anti-leakage device according to claim 1, characterized in that: A high-pressure water pipe (14) is fixedly installed on the top of the raw material tank (1), and a water pipe valve (15) is fixedly installed on the surface of the high-pressure water pipe (14).

7. A liquid metering start / stop anti-leakage device according to claim 6, characterized in that: The inner top wall of the raw material tank (1) is fixedly installed with a cleaning ring pipe (16), and a high-pressure water pipe (14) is connected to the cleaning ring pipe (16). A cleaning nozzle (17) is fixedly installed at the bottom of the cleaning ring pipe (16).

8. A liquid metering start-stop anti-leakage device according to claim 1, characterized in that: A rotating shaft (18) is rotatably installed on the inner top wall of the raw material tank (1). An installation rod (19) is fixedly installed on the surface of the rotating shaft (18). A scraper (20) is fixedly installed at one end of the installation rod (19). The scraper (20) is in contact with the inner side wall of the raw material tank (1). A rotating motor (21) is fixedly installed on the top of the raw material tank (1). The output shaft of the rotating motor (21) is fixedly connected to the top end of the rotating shaft (18).

Images