A quantitative feeding device for concrete cover slab pouring
By designing a quantitative feeding device for cement cover slab casting, a motor and spring slider mechanism are used to realize the quantitative opening and closing and volume adjustment of the storage cylinder, which solves the problem of inaccurate manual feeding and ensures the molding quality and material utilization rate of cement cover slabs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI XINGHAI ELECTRIC PORCELAIN MFG CO LTD
- Filing Date
- 2025-08-04
- Publication Date
- 2026-06-30
AI Technical Summary
In the existing technology, the feeding process of cement cover plates relies on manual operation, which makes it difficult to control the feeding amount, and it is easy to feed too little or too much, which affects the molding quality and wastes materials.
A quantitative feeding device for cement cover slab pouring was designed. The device uses a motor to drive a rotating shaft, which in turn drives a baffle plate and an extrusion rod. Combined with a spring and a slider mechanism, the device enables quantitative opening and closing of the storage cylinder. The volume of the storage cylinder can be adjusted with bolts to ensure precise control of the feeding amount.
This method enables quantitative feeding of cement slabs, avoiding the uncertainties of manual operation, ensuring the accuracy of feeding quantity, and preventing material waste and molding quality problems.
Smart Images

Figure CN224425959U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cement cover plate processing technology, specifically a quantitative feeding device for cement cover plate pouring. Background Technology
[0002] Cement covers are commonly used in manholes of sewers, rainwater drains, sewage pipes, and cable conduits. They also serve as compression covers for heavy-duty cables and filter outlets for light-duty drainage systems. These covers effectively prevent people, vehicles, or other objects from falling into these areas, making them extremely important. The production process of cement covers involves multiple steps and technical processes, from crushing and pre-homogenizing raw materials to mixing and molding, curing and demolding, and finally inspection and packaging. Each step requires strict control and management to ensure that the produced cement covers have high quality and excellent performance.
[0003] When cement needs to be fed into the mold, it is usually done manually. Manual feeding requires the operator to have a good grasp of the amount of cement to be fed. If too little cement is fed, the final cement cover plate structure will be unstable and there will be no safety guarantee during use. If too much cement is fed, it will lead to waste of materials. Utility Model Content
[0004] The purpose of this utility model is to provide a quantitative feeding device for cement cover slab pouring, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a quantitative feeding device for cement slab casting, comprising a feeding cylinder, an internal stirring device, a support frame fixedly installed on the outer wall of the feeding cylinder, a discharge pipe fixedly installed at the bottom of the feeding cylinder, a rotating shaft passing through the outer wall of the discharge pipe and rotatably connected at the penetration point, a motor fixedly installed on the inner wall of the support frame, the right side of the rotating shaft fixedly installed at the output end of the motor, a baffle plate fixedly installed on the outer wall of the rotating shaft, a discharge mechanism at the bottom of the discharge pipe, and an adjustment mechanism at the bottom of the discharge pipe, the discharge mechanism comprising:
[0006] A storage cylinder, the top of which is fixedly installed at the bottom of the discharge pipe, and a sliding plate is slidably installed at the bottom of the storage cylinder;
[0007] A reset spring is fixedly mounted on the outer wall of the sliding plate on its left side. This allows the sliding plate to be reset when the push rod is not blocked by the T-shaped plate and the slider is not blocked by the outer wall of the sliding plate. The end of the reset spring away from the sliding plate is fixedly mounted on the inner wall of the support frame.
[0008] Preferably, a push rod is fixedly installed on the outer wall of the sliding plate, a pressing rod is fixedly installed on the outer wall of the rotating shaft, and an L-shaped rod passes through the side of the support frame, with a sliding connection at the passage.
[0009] Preferably, a compression spring is fixedly installed on the outer wall of the support frame, which can reset the L-shaped rod and T-shaped plate when the compression rod is not compressing. The end of the compression spring away from the support frame is fixedly installed on the left side of the L-shaped rod. A T-shaped plate is fixedly installed on the left side of the L-shaped rod, which can make the sliding plate completely cover the bottom of the storage cylinder when the push plate is pushed. A slider is slidably installed on the outer wall of the storage cylinder.
[0010] Preferably, a compression spring is fixedly installed on the top of the slider, which ensures that the L-shaped inclined bar is not squeezed by the T-shaped bar and that the sliding plate is in a blocked state. The compression spring will reset the slider and make it lock onto the outer wall of the sliding plate. The end of the compression spring away from the slider is fixedly installed on the outer wall of the storage cylinder, and an L-shaped inclined bar is fixedly installed on the front of the slider.
[0011] Preferably, the adjusting mechanism includes: a movable trough, which is located at the bottom of the discharge pipe, and a ring is slidably installed inside the movable trough to prevent cement from entering the top of the movable plate, and the movable plate is fixedly installed on the outer wall of the ring.
[0012] Preferably, a bolt passes through the top of the storage cylinder, and the connection at the passage is threaded, and the bottom of the bolt is rotatably mounted on the top of the movable plate.
[0013] Compared with the prior art, this utility model provides a quantitative feeding device for cement cover slab pouring, which has the following beneficial effects:
[0014] 1. This quantitative feeding device for cement slab pouring operates by starting the motor, which causes the rotating shaft to open the baffle plate. At this time, the extrusion rod does not press the T-shaped plate, and the extrusion spring will reset the L-shaped rod and T-shaped plate, causing them to press the push rod and the sliding plate to cover the bottom of the storage cylinder. Cement then enters the storage cylinder from the discharge pipe. When the baffle plate closes, the extrusion rod will press the T-shaped plate to move. When it reaches the end, it will press the L-shaped inclined rod, causing the slider to rise. The reset spring will then reset the sliding plate, opening the bottom of the storage cylinder. This allows for quantitative feeding, preventing overfeeding or underfeeding.
[0015] 2. The quantitative feeding device for cement cover slab pouring can move the moving plate up and down by turning the bolts, and the ring will move in the moving groove. When the moving plate moves, the volume of the storage cylinder will increase or decrease, thus controlling the amount of material fed, so that cement cover slabs of different dosages can be fed. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the main body of this utility model;
[0017] Figure 2 This is a schematic diagram of the three-dimensional half-section structure of the main body of this utility model;
[0018] Figure 3 This is a top view of the material discharge mechanism of this utility model;
[0019] Figure 4 This is a schematic diagram of the right side of the material discharge mechanism of this utility model;
[0020] Figure 5 This utility model Figure 3 Enlarged structural diagram at point A in the middle;
[0021] Figure 6 This utility model Figure 4 Enlarged structural diagram at point B;
[0022] Figure 7 This utility model Figure 2 Enlarged structural diagram at point C.
[0023] In the diagram: 1. Feeding cylinder; 2. Mixing device; 3. Support frame; 4. Discharge pipe; 5. Rotating shaft; 6. Motor; 7. Baffle plate; 8. Discharge mechanism; 81. Storage cylinder; 82. Sliding plate; 83. Return spring; 84. Push rod; 85. Extrusion rod; 86. L-shaped rod; 87. Extrusion spring; 88. T-shaped plate; 89. Sliding block; 810. Compression spring; 811. L-shaped inclined rod; 9. Adjustment mechanism; 91. Moving groove; 92. Ring; 93. Moving plate; 94. Bolt. Detailed Implementation
[0024] like Figures 1-7 As shown, this utility model provides a technical solution: a quantitative feeding device for cement cover slab pouring, including a feeding cylinder 1, a stirring device 2 inside the feeding cylinder 1, a support frame 3 fixedly installed on the outer wall of the feeding cylinder 1, a discharge pipe 4 fixedly installed at the bottom of the feeding cylinder 1, a rotating shaft 5 passing through the outer wall of the discharge pipe 4 and rotatably connected at the passage, a motor 6 fixedly installed on the inner wall of the support frame 3, the right side of the rotating shaft 5 fixedly installed at the output end of the motor 6, a baffle plate 7 fixedly installed on the outer wall of the rotating shaft 5, a discharge mechanism 8 at the bottom of the discharge pipe 4, and an adjustment mechanism 9 at the bottom of the discharge pipe 4.
[0025] Specifically, the discharge mechanism 8 includes: a storage cylinder 81, a sliding plate 82, a return spring 83, a push rod 84, a pressing rod 85, an L-shaped rod 86, a pressing spring 87, a T-shaped plate 88, a slider 89, a compression spring 810, and an L-shaped inclined rod 811. The top of the storage cylinder 81 is fixedly installed at the bottom of the discharge pipe 4. The sliding plate 82 and the return spring 83 are slidably installed at the bottom of the storage cylinder 81. The left side of the return spring 83 is fixedly installed on the outer wall of the sliding plate 82, and the end of the return spring 83 away from the sliding plate 82 is fixedly installed on the inner wall of the support frame 3. The push rod 84 is fixedly installed on the outer wall of the sliding plate 82. The pressing rod 85 is fixedly installed on the outer wall of the rotating shaft 5. The L-shaped rod 86 passes through the side of the support frame 3 and is slidably connected at the passage. The pressing spring 87 is fixedly installed on the outer wall of the support frame 3. The end of the pressing spring 87 away from the support frame 3 is fixedly installed on the left side of the L-shaped rod 86. The left side of the L-shaped rod 86 is fixedly installed on the T-shaped plate. 88. When the baffle plate 7 is closed, the extrusion rod 85 will extrude the T-shaped plate 88, causing the T-shaped plate 88 to move the L-shaped rod 86. At this time, the extrusion spring 87 is stretched. A slider 89 is slidably installed on the outer wall of the storage cylinder 81. A compression spring 810 is fixedly installed on the top of the slider 89. The end of the compression spring 810 away from the slider 89 is fixedly installed on the outer wall of the storage cylinder 81. An L-shaped inclined rod 811 is fixedly installed on the front of the slider 89. When the T-shaped plate 88 moves to the end, the inclined surface of the T-shaped plate 88 will extrude the inclined surface of the L-shaped inclined rod 811, thereby causing the L-shaped inclined rod 811 to rise. At this time, the slider 89 will also rise, and the compression spring 810 will be compressed. At this time, the sliding plate 82 will no longer be obstructed, and the reset spring 83 will reset it. The push rod 84 will also reset. In this way, the bottom of the storage cylinder 81 will open, allowing the cement in the storage cylinder 81 to slide into the mold. This can achieve quantitative feeding and prevent excessive or insufficient feeding.
[0026] Specifically, the adjusting mechanism 9 includes: a moving groove 91, a ring 92, a moving plate 93, and a bolt 94. The moving groove 91 is located at the bottom of the discharge pipe 4. The ring 92 is slidably installed inside the moving groove 91. The moving plate 93 is fixedly installed on the outer wall of the ring 92. The bolt 94 passes through the top of the storage cylinder 81 and is threaded at the point of penetration. The bottom of the bolt 94 is rotatably installed on the top of the moving plate 93. By turning the bolt 94, the moving plate 93 can be moved up and down, and the ring 92 will move in the moving groove 91. When the moving plate 93 moves, the volume of the storage cylinder 81 will increase or decrease, thereby adjusting the amount of cement stored. This allows for the feeding of different amounts of cement slabs.
[0027] Working principle: When cement is poured into the feed inlet at the top of the feeding cylinder 1, the mixing device 2 can mix the cement to prevent solidification. By starting the motor 6, the rotating shaft 5 drives the baffle plate 7 to open. When the rotating shaft 5 rotates, it drives the extrusion rod 85 to rotate, causing it to move away from the T-shaped plate 88. In this way, the extrusion force on the T-shaped plate 88 is eliminated. The extrusion spring 87 will reset the L-shaped rod 86 and the T-shaped plate 88. When the T-shaped plate 88 resets, it will push the push rod 84, causing the sliding plate 82 to block the bottom of the storage cylinder 81, and the reset spring 83 will be stretched. At this time, the slider 89 is not blocked by the sliding plate 82. The compression spring 810 will reset the slider 89 and simultaneously reset the L-shaped inclined rod 811, thus opening the baffle plate 7. When cement is discharged from the discharge pipe 4 into the storage cylinder 81, and the baffle plate 7 is closed, the extrusion rod 85 will extrude the T-shaped plate 88, causing the T-shaped plate 88 to move the L-shaped rod 86. At this time, the extrusion spring 87 is stretched, and when it moves to the end, the inclined surface of the T-shaped plate 88 will extrude the inclined surface of the L-shaped inclined rod 811, thereby causing the L-shaped inclined rod 811 to rise. At this time, the slider 89 will also rise, and the compression spring 810 will be compressed. At this time, the sliding plate 82 will no longer be blocked, and the reset spring 83 will reset it, and the push rod 84 will reset. In this way, the bottom of the storage cylinder 81 will open, allowing the cement in the storage cylinder 81 to slide into the mold. This can achieve quantitative feeding and prevent excessive or insufficient feeding.
[0028] By tightening bolt 94, the movable plate 93 can be moved up and down, and the ring 92 will move in the movable groove 91. When the movable plate 93 moves, the volume of the storage cylinder 81 will increase or decrease, thereby adjusting the amount of cement stored. This allows for the feeding of different amounts of cement cover plates.
[0029] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.
Claims
1. A quantitative feeding device for cement screeding, comprising a feeding cylinder (1), characterized in that: The feeding cylinder (1) is equipped with a stirring device (2) inside. A support frame (3) is fixedly installed on the outer wall of the feeding cylinder (1). A discharge pipe (4) is fixedly installed at the bottom of the feeding cylinder (1). A rotating shaft (5) passes through the outer wall of the discharge pipe (4) and is rotatably connected at the passage. A motor (6) is fixedly installed on the inner wall of the support frame (3). The right side of the rotating shaft (5) is fixedly installed at the output end of the motor (6). A baffle plate (7) is fixedly installed on the outer wall of the rotating shaft (5). A discharge mechanism (8) is provided at the bottom of the discharge pipe (4). An adjustment mechanism (9) is provided at the bottom of the discharge pipe (4). The discharge mechanism (8) includes: Storage cylinder (81), the top of which is fixedly installed at the bottom of discharge pipe (4), and a sliding plate (82) is slidably installed at the bottom of storage cylinder (81). A reset spring (83) is fixed on the left side of the sliding plate (82) and the end of the reset spring (83) away from the sliding plate (82) is fixedly installed on the inner wall of the support frame (3).
2. The quantitative feeding device for cement cover slab pouring according to claim 1, characterized in that: A push rod (84) is fixedly installed on the outer wall of the sliding plate (82), a pressing rod (85) is fixedly installed on the outer wall of the rotating shaft (5), and an L-shaped rod (86) passes through the side of the support frame (3), and the passage is slidably connected.
3. The quantitative feeding device for cement mat pouring according to claim 2, characterized in that: A compression spring (87) is fixedly installed on the outer wall of the support frame (3). The end of the compression spring (87) away from the support frame (3) is fixedly installed on the left side of the L-shaped rod (86). A T-shaped plate (88) is fixedly installed on the left side of the L-shaped rod (86). A slider (89) is slidably installed on the outer wall of the storage cylinder (81).
4. The quantitative feeding device for cement mat pouring according to claim 3, characterized in that: A compression spring (810) is fixedly installed on the top of the slider (89), and the end of the compression spring (810) away from the slider (89) is fixedly installed on the outer wall of the storage cylinder (81). An L-shaped inclined rod (811) is fixedly installed on the front of the slider (89).
5. The quantitative feeding device for cement mat pouring according to claim 1, characterized in that: The adjustment mechanism (9) includes: a moving groove (91), which is located at the bottom of the discharge pipe (4), and a ring (92) is slidably installed inside the moving groove (91), and a moving plate (93) is fixedly installed on the outer wall of the ring (92).
6. The quantitative feeding device for cement mat pouring according to claim 5, characterized in that: The top of the storage cylinder (81) is pierced by a bolt (94) with a threaded connection at the piercing point, and the bottom of the bolt (94) is rotatably mounted on the top of the movable plate (93).