Cement metering device

Abstract

The utility model discloses a cement metering device which mainly comprises a support, a double-layer metering barrel and a lifting mechanism. The double-layer metering barrel comprises an inner barrel and an outer barrel, a sliding plate is arranged at the lower end of the periphery of the inner barrel, a limiting plate is arranged at the upper end of the periphery of the outer barrel, and the sliding plate slides on the inner wall of the outer barrel; the lifting mechanism drives the inner barrel to move upwards through electric lifting, then the outer barrel is driven to move upwards in the mode that a sliding plate drives a limiting plate, the device is unfolded and lifted to the needed height, and a motor rotates reversely to drive the inner barrel to descend so as to store the device. The working efficiency can be effectively improved, the storage space of the device is compressed, and the storage cost of the device is reduced.

Description

Technical Field

[0001] This application relates to the field of cement transfer, and specifically relates to a cement metering device. Background Art

[0002] In modern construction engineering, it is often necessary to use on-site prepared and mixed concrete or cement for relatively dispersed small unit projects. However, when using, it is necessary to strictly prepare building materials according to the mix ratio specified in the engineering design. Most of the on-site cement storage devices are large cement silos. When obtaining small amounts of cement ash, the output is not accurate enough, which is not convenient for the use of small unit projects. Therefore, multiple sets of small cement metering devices are often prepared on-site for cement transfer and weighing. However, when using this device, due to the uncertain heights of the feeding and discharging devices facing each other, on-site operators can only make the metering device adapt to the feeding or discharging device by increasing cushions or making brackets to raise the metering device, which is extremely inconvenient for daily construction operations, increases safety risks while affecting operation efficiency, prolongs the construction time required, and at the same time, its storage when not in use also occupies a lot of space, squeezing the storage space of other construction equipment.

[0003] For example, a cement weighing device for a concrete mixing station with the publication number CN208323818U has a structure including a fixed bracket. Installation grooves are opened on the inner walls of both sides of the fixed bracket. Installation rods are movably installed in the two installation grooves. One ends of the two installation rods close to each other extend into the fixed bracket and are fixedly installed with the same weighing hopper body. A telescopic groove is opened on the bottom inner wall of the installation groove in the vertical direction, and a telescopic rod is movably installed in the telescopic groove. The above weighing device can stop adding cement in time when the cement in the weighing hopper body reaches the moving weight through the provided cover plate, thus ensuring the accuracy of cement weighing. However, it cannot solve the problem that the metering bucket is not convenient to adapt to the height of the feeding or discharging device. Therefore, this application designs a cement metering device that can easily adjust the height of the metering bucket to adapt to the corresponding feeding or discharging device, is convenient for storage, and reduces the occupied storage space. Summary of the Utility Model

[0004] The purpose of the present utility model is to provide a cement metering device, aiming to solve the above existing problems.

[0005] To achieve the above object, the present utility model provides the following technical solution: a cement metering device, including a bracket, a double-layer metering barrel, and a lifting mechanism capable of displacing the double-layer metering barrel; the lifting mechanism is arranged inside the bracket, the upper end of the lifting mechanism extends out of the bracket, the lower end of the double-layer metering barrel is inserted into the lower part of the bracket, and the upper end of the double-layer metering barrel is bolted to the part of the lifting mechanism extending out of the bracket; the double-layer metering barrel includes an inner barrel and an outer barrel, a sliding plate is arranged at the lower end of the outer periphery of the inner barrel, a limiting plate is arranged at the upper end of the inner periphery of the outer barrel, and the sliding plate slides on the inner wall of the outer barrel; the lifting mechanism drives the inner barrel to move upward through electric lifting, and then drives the outer barrel to move upward by driving the limiting plate through the sliding plate, unfolds the device and lifts it to the required height, and drives the inner barrel to descend through the reverse rotation of the motor for the storage of the device.

[0006] By providing the inner barrel, the outer barrel and the lifting mechanism, when the device is stored, the inner barrel can be sleeved in the outer barrel, and the overall height of the device can be reduced through the drive of the lifting mechanism, compressing the required storage space, making the space utilization rate higher during storage, and effectively reducing the equipment storage cost.

[0007] Further, a feed inlet penetrating into the inner part of the inner barrel is arranged at the upper end of the inner barrel, a sensor is also arranged at the upper part of the inner barrel, sliding seals are arranged on the side parts of the sliding plate and the limiting plate, the lower end of the outer barrel is of a conical structure, and a flow valve for discharging materials is arranged at the lower end of the outer barrel.

[0008] Further, the bracket includes a vertical frame, a support frame and a transverse frame; the lower end of the support frame is integrally formed with the support frame, the support frame and the vertical frame are two groups arranged on both sides of the double-layer metering barrel, both ends of the transverse frame are communicated with the vertical frame, an auxiliary frame is fixedly connected to the side part of the vertical frame, a chute is arranged on the auxiliary frame, and the lower part of the outer barrel is slidably connected with the auxiliary frame through the chute.

[0009] Further, the lifting mechanism includes a double-headed motor, a rotating rod, a bevel gear, a bevel gear, a threaded rod and a threaded sleeve; the double-headed motor is bolted to the inner wall of the transverse frame, the output ends on both sides of the double-headed motor are inserted into two groups of rotating rods, the end of the rotating rod away from the double-headed motor is inserted into the bevel gear, the bevel gear is rotatably connected to the inner wall of the vertical frame, the bevel gear is engaged with the bevel gear, the middle part of the bevel gear is welded and connected to the threaded rod and extends upward, the threaded sleeve is slidably connected to the inner wall of the vertical frame, the threaded sleeve is sleeved on the threaded rod, and the threaded sleeve is threadedly connected to the threaded rod.

[0010] Through the provided lifting mechanism, the inner barrel can be lifted, and then the outer barrel can be displaced by driving the sliding plate, so that the metering barrel can adjust the height to the required position, facilitating the feeding and discharging of the metering barrel, without using an additional bracket for padding, effectively improving the safety of on-site operations and enhancing the operation efficiency.

[0011] Further, the upper end of the threaded sleeve extends out of the upper end of the vertical frame. The upper end of the threaded sleeve is bolted to the inner barrel, and the sliding connection between the threaded sleeve and the vertical frame is limited to prevent the threaded sleeve from rotating.

[0012] Compared with the prior art, it has the following beneficial effects:

[0013] The utility model provides a cement metering device. By arranging the inner barrel, the outer barrel and the lifting mechanism, when the device is stored, the inner barrel can be sleeved in the outer barrel, and the overall height of the device can be reduced by the drive of the lifting mechanism, compressing the required storage space, making the space utilization rate higher during storage, and effectively reducing the equipment storage cost.

[0014] Through the arranged lifting mechanism, the inner barrel can be lifted, and then the outer barrel can be displaced by driving the sliding plate, so that the metering barrel can be adjusted to the required height, facilitating the feeding and discharging of the metering barrel, without using an additional bracket for padding, effectively improving the safety of on-site operations and enhancing the operation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is an overall schematic diagram of a cement metering device of the utility model;

[0016] Figure 2 is a cross-sectional view of a double-layer metering barrel of a cement metering device of the utility model;

[0017] Figure 3 is a cross-sectional view of a lifting mechanism of a cement metering device of the utility model.

[0018] In the figure: 1 - bracket; 11 - vertical frame; 12 - support frame; 13 - transverse frame; 14 - auxiliary frame; 141 - chute; 2 - double-layer metering barrel; 3 - lifting mechanism; 31 - double-headed motor; 32 - rotating rod; 33 - bevel gear; 34 - bevel gear; 35 - threaded rod; 36 - threaded sleeve; 4 - inner barrel; 41 - sliding plate; 42 - feed inlet; 43 - sensor; 5 - outer barrel; 51 - limiting plate; 52 - flow valve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] Please refer to Figures 1 to 3As shown in the figure, the utility model provides the following technical solution: a cement metering device, which includes a bracket 1, a double-layer metering barrel 2, and a lifting mechanism 3 that can displace the double-layer metering barrel 2; the lifting mechanism 3 is arranged inside the bracket 1, the upper end of the lifting mechanism 3 extends out of the bracket 1, the lower end of the double-layer metering barrel 2 is inserted into the lower part of the bracket 1, and the upper end of the double-layer metering barrel 2 is bolted to the part of the lifting mechanism 3 that extends out of the bracket 1; the double-layer metering barrel 2 includes an inner barrel 4 and an outer barrel 5. A sliding plate 41 is arranged at the lower end of the outer periphery of the inner barrel 4, and a limiting plate 51 is arranged at the upper end of the inner periphery of the outer barrel 5. The sliding plate 41 slides on the inner wall of the outer barrel 5; the lifting mechanism 3 drives the inner barrel 4 to move upward through electric lifting, and then drives the outer barrel 5 to move upward by driving the limiting plate 51 through the sliding plate 41, so as to unfold the device and lift it to the required height. The inner barrel 4 is driven to descend by reversing the motor to carry out the storage of the device.

[0021] As another embodiment, as Figure 1 and Figure 2 shown, a feed inlet 42 penetrating into the interior of the inner barrel 4 is arranged at the upper end of the inner barrel 4. A sensor 43 is also arranged in the upper part of the inner barrel 4. Sliding seals are arranged on the side parts of the sliding plate 41 and the limiting plate 51. The lower end of the outer barrel 5 is of a conical structure, and a flow valve 52 for discharging materials is arranged at the lower end of the outer barrel 5. When the device is in normal use, a screw feeding device is connected to the cement ash tank and the feed inlet 42, so that cement enters the interior of the double-layer metering barrel 2 from the feed inlet 42. The weight of the materials in the double-layer metering barrel 2 can be obtained through the sensor 43. After the feeding is completed, the flow valve 52 can be used to discharge materials with accurate flow rate. The total discharge amount of the flow valve 52 can be set according to the mixing ratio actually required on site, so as to realize the accurate dosage of bulk cement. At the same time, the sliding seals arranged on the sliding plate 41 and the limiting plate 51 prevent external sundries from entering the gap between the inner barrel 4 and the outer barrel 5.

[0022] As another embodiment, as Figures 1 to 3 shown, the bracket 1 includes a vertical frame 11, a support frame 12, and a transverse frame 13; the lower end of the support frame 12 is integrally formed with the support frame 12. Two groups of the support frames 12 and the vertical frame 11 are arranged on both sides of the double-layer metering barrel 2, and both ends of the transverse frame 13 are connected to the vertical frame 11. The support frame 12 is used to stably place the device on the ground to prevent it from tipping over. By arranging the transverse frame 13, the two vertical frames 11 on both sides are connected. While arranging the lifting mechanism 3 inside, the stability of the bracket 1 is enhanced, and it can be used as a structural reinforcing rib.

[0023] See Figure 3, an auxiliary frame 14 is fixedly connected to the side of the vertical frame 11. A chute 141 is provided on the auxiliary frame 14. The lower part of the outer barrel 5 is slidably connected to the auxiliary frame 14 through the chute 141. After the device is placed at the working location, the lifting mechanism 3 is started, so that the lifting mechanism 3 drives the inner barrel 4 to move upward. When the sliding plate 41 contacts the limiting plate 51, the inner barrel 4 naturally drives the outer barrel 5 to rise, so that the outer barrel 5 synchronously moves upward along the auxiliary frame 14 through the chute 141. After reaching the required height, the output of the lifting mechanism 3 is turned off, and the device can be used normally. After the device is used up, the inner barrel 4 is driven to move downward by the reverse rotation of the lifting mechanism 3, and the outer barrel 5 naturally moves synchronously under the influence of gravity. When the outer barrel 5 moves to the lowermost end of the chute 141, it is limited and stops descending, and the inner barrel 4 continues to descend and extends into the inner part of the outer barrel 5 to realize the storage of the device.

[0024] See Figure 3 , the lifting mechanism 3 includes a double-headed motor 31, a rotating rod 32, a bevel gear 33, a bevel gear 34, a threaded rod 35 and a threaded sleeve 36; the double-headed motor 31 is bolted to the inner wall of the transverse frame 13. The output ends on both sides of the double-headed motor 31 are inserted into two groups of rotating rods 32. The end of the rotating rod 32 away from the double-headed motor 31 is inserted into the bevel gear 33. The bevel gear 34 is rotatably connected to the inner wall of the vertical frame 11. The bevel gear 34 is meshed with the bevel gear 33. The middle part of the bevel gear 34 is welded to the threaded rod 35 and extends upward. The threaded sleeve 36 is slidably connected to the inner wall of the vertical frame 11. The threaded sleeve 36 is sleeved on the threaded rod 35, and the threaded sleeve 36 is threadedly connected to the threaded rod 35. When the device needs to adjust the height, the double-headed motor 31 is started, so that the motor drives the rotating rod 32 to rotate, and then drives the bevel gears 33 on both sides to rotate. The bevel gear 33 drives the bevel gear 34 to rotate through meshing with the bevel gear 34, and then the threaded rod 35 rotates. Due to the threaded connection between the threaded rod 35 and the threaded sleeve 36, and the sliding connection between the threaded sleeve 36 and the inner wall of the vertical frame 11 that prevents it from rotating, the threaded sleeve 36 is driven by the threaded rod 35 to displace, driving the inner barrel 4 to lift or lower.

[0025] See Figure 3 , the upper end of the threaded sleeve 36 extends out of the upper end of the vertical frame 11. The upper end of the threaded sleeve 36 is bolted to the inner barrel 4. The sliding connection between the threaded sleeve 36 and the vertical frame 11 is limited to prevent the threaded sleeve 36 from rotating. The thread directions of the two groups of symmetrically arranged threaded rods 35 are opposite, so that the double-headed motor 31 drives the threaded rods 35 on both sides to drive the threaded sleeves 36 on both sides to move in the same direction.

[0026] Working principle: When the device needs to be used, place the device at the working location and start the double-headed motor 31, so that the double-headed motor 31 drives the threaded rod 35 to rotate, and then drives the threaded sleeve 36 to move upward, driving the inner barrel 4 to move upward. When the sliding plate 41 contacts the limiting plate 51, the inner barrel 4 drives the outer barrel 5 to move upward synchronously. After the device reaches the required height, the motor stops rotating. Connect the spiral conveying equipment through the feed port 42 for cement feeding. The amount of cement and the discharge amount in the double-layer metering barrel 2 can be controlled through the sensor 43 and the flow valve 52. After the operation is completed, start the double-headed motor 31 to reverse it, so that the threaded sleeve 36 drives the inner barrel 4 to move downward, and the outer barrel 5 naturally moves synchronously under the influence of gravity. When the outer barrel 5 moves to the lowest end of the chute 141, it is limited and stops descending, and the inner barrel 4 continues to descend and extends into the outer barrel 5 to realize the storage of the device.

[0027] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cement metering device, characterized in that , including a bracket (1), a double-layer metering barrel (2), and a lifting mechanism (3) for displacing the double-layer metering barrel (2); the lifting mechanism (3) is arranged inside the bracket (1), the upper end of the lifting mechanism (3) extends out of the bracket (1), the lower end of the double-layer metering barrel (2) is inserted into the lower part of the bracket (1), and the upper end of the double-layer metering barrel (2) is bolted to the part of the lifting mechanism (3) extending out of the bracket (1); the double-layer metering barrel (2) includes an inner barrel (4) and an outer barrel (5), a sliding plate (41) is arranged at the lower end of the outer periphery of the inner barrel (4), a limiting plate (51) is arranged at the upper end of the inner periphery of the outer barrel (5), and the sliding plate (41) slides on the inner wall of the outer barrel (5); the lifting mechanism (3) drives the inner barrel (4) to move upward through electric lifting, and then drives the outer barrel (5) to move upward by driving the limiting plate (51) through the sliding plate (41), unfolds the device and lifts it to the required height, and drives the inner barrel (4) to descend by reversing the motor to carry out the storage of the device.

2. The cement metering device according to claim 1, characterized in that, An inlet (42) penetrating into the inside of the inner barrel (4) is arranged at the upper end of the inner barrel (4), and a sensor (43) is also arranged at the upper part of the inner barrel (4).

3. The cement metering device according to claim 2, characterized in that, Sliding seals are arranged on the side parts of the sliding plate (41) and the limiting plate (51).

4. The cement metering device according to claim 3, characterized in that, The lower end of the outer barrel (5) is of a conical structure, and a flow valve (52) for discharging materials is arranged at the lower end of the outer barrel (5).

5. The cement metering device according to claim 2, characterized in that, The bracket (1) includes a vertical frame (11), a support frame (12), and a horizontal frame (13); the lower end of the support frame (12) is integrally formed with the support frame (12), and the support frame (12) and the vertical frame (11) are two groups arranged on both sides of the double-layer metering barrel (2), and both ends of the horizontal frame (13) are communicated with the vertical frame (11).

6. The cement metering device according to claim 5, characterized in that, An auxiliary frame (14) is fixedly connected to the side part of the vertical frame (11), a chute (141) is formed on the auxiliary frame (14), and the lower part of the outer barrel (5) is slidably connected to the auxiliary frame (14) through the chute (141).

7. The cement metering device according to claim 6, characterized in that, The lifting mechanism (3) includes a double-headed motor (31), a rotating rod (32), a bevel gear (33), a bevel gear (34), a threaded rod (35), and a threaded sleeve (36); the double-headed motor (31) is bolted to the inner wall of the horizontal frame (13), the output ends on both sides of the double-headed motor (31) are inserted into two groups of the rotating rods (32), the end of the rotating rod (32) away from the double-headed motor (31) is inserted into the bevel gear (33), the bevel gear (34) is rotatably connected to the inner wall of the vertical frame (11), the bevel gear (34) is meshed with the bevel gear (33), the middle part of the bevel gear (34) is welded to the threaded rod (35) and extends upward, the threaded sleeve (36) is slidably connected to the inner wall of the vertical frame (11), the threaded sleeve (36) is sleeved on the threaded rod (35), and the threaded sleeve (36) is threadedly connected to the threaded rod (35).

8. The cement metering device according to claim 7, characterized in that, The upper end of the threaded sleeve (36) extends out of the upper end of the vertical frame (11). The upper end of the threaded sleeve (36) is bolted to the inner barrel (4). The sliding connection between the threaded sleeve (36) and the vertical frame (11) is limited to prevent the threaded sleeve (36) from rotating. The thread directions of the two groups of symmetrically arranged threaded rods (35) are opposite.

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