Concrete discharging hopper structure

Abstract

The utility model discloses a concrete discharging hopper structure, and relates to the technical field of building construction. The two closing plates can be mutually opened and closed; the plug is connected to the closing plate; wherein the plug comprises a movable frame, the outer portion of the movable frame is connected with a linkage strip, when the two closing plates are closed, the sealing strips outside the shaft rods are attached to each other, and the two shaft rods extrude each other and move in the direction away from the closing plates along with the continuous approaching of the linkage strip to the closing plates. According to the concrete discharging hopper structure, due to the fact that the movable frame is adopted to drive the shaft rods to extrude each other, the sealing belts arranged on the shaft rods in a sleeving mode block the gaps between the closing plates, the technical problem that when an existing concrete hopper is used, the hopper cannot be completely closed, and concrete leaks is effectively solved, and the service life of the concrete discharging hopper structure is prolonged. Therefore, when the closing plate is clamped by the stone, effective sealing can be achieved, and the sealing stability of the hopper is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a concrete lower hopper structure. Background Art

[0002] In civil engineering, the buildings constructed on construction sites are getting higher and higher, and the height of concrete pouring by concrete pump trucks can no longer meet the construction needs. Tower cranes are used in conjunction with concrete lifting hoppers to meet the concrete construction needs of higher floors. This process generally uses a tower crane to lift concrete, and then uses a concrete hopper to feed the material. During the feeding process, the concrete is vibrated. However, traditional construction sites generally use steel hoppers to pour concrete. It is not easy for workers to control the concrete flow, and there is excessive impact force, causing the steel cage to float up under the reaction force, affecting the construction quality and causing economic losses. In addition, the unloading speed is certain, and under special circumstances, it cannot meet the construction needs, thus affecting work efficiency.

[0003] At present, a Chinese patent with the existing patent announcement number CN219638425U discloses a concrete hoisting hopper, including a frame, a hopper body, a discharge pipe, an adjustment component and a flow limiting pipe. The hopper body is arranged on the frame, and a lifting lug is arranged on the hopper body. The discharge pipe is arranged at the bottom of the hopper body. The diameter of the discharge pipe is smaller than the diameter of the hopper body and is connected with the hopper body. The adjustment component is arranged on the discharge pipe to control the opening size of the channel in the discharge pipe. The flow limiting pipe is rotatably arranged on the side wall of the discharge pipe and is slidably arranged along the axial direction of the discharge pipe. The flow limiting pipe and the discharge pipe have a sleeve connection state, and the diameter gradually decreases from top to bottom when in the sleeve connection state. The concrete hoisting hopper has a simple structure, and the opening size of the channel in the discharge pipe is controlled to control the discharge speed. At the same time, by setting the flow limiting pipe, the concrete flowing out of the discharge pipe can be restricted again when necessary to ensure the control of the discharge speed, thereby improving the construction efficiency.

[0004] However, during the implementation of the above technical solution, it was found that there were at least the following technical problems:

[0005] The hopper cannot be completely closed: During the existing concrete pouring, in order to keep the concrete dense, a vibrator is needed to expel the air in the concrete every once in a while. However, since the concrete contains a large amount of stones, the switch structure is easily stuck by the stones when closing the concrete hopper, which not only fails to close the hopper, but also causes unnecessary damage to the vibrator and workers due to the falling concrete (mixed with stones). In addition, since the concrete contains a certain amount of moisture and sand, when the switch structure is stuck by the stones, the moisture and sand will continue to be lost, resulting in an imbalance in the proportion of the various components in the concrete, affecting the hardness after solidification. For this reason, we propose a concrete lower hopper structure. Utility Model Content

[0006] 1. Technical issues to be resolved

[0007] In view of the deficiencies in the prior art, the utility model provides a concrete lower hopper structure to solve the technical problem that the existing concrete hopper cannot be completely closed when in use, resulting in concrete leakage.

[0008] (II) Technical solution

[0009] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0010] A concrete lower hopper structure includes an opening and closing assembly installed on a hopper discharge pipe. The opening and closing assembly is like a "valve" that can control the opening and closing of the discharge pipe and the flow rate. The opening and closing assembly includes two closing plates that can be opened and closed with each other, and the two closing plates are connected to the discharge port of the discharge pipe. In this way, the discharge port of the discharge pipe can be closed and opened by opening and closing the two closing plates.

[0011] On this basis, we connect a plug to the closing plate to seal the gap between the two closing plates; and the plug includes a movable frame hinged to the closing plate and a linkage bar connected to the outside of the movable frame, the linkage bar is formed in an arc shape and fits with the outer wall of the closing plate, so that when the movable frame moves, it can drive the linkage bar to move without affecting the closing plate, that is, the closing plate can move relative to the linkage bar, so that two sets of sealing structures are formed, and when the closing plate is stuck by a stone, the second set of sealing structures can be driven by the linkage bar to seal the hopper;

[0012] A shaft is hinged at the end of the linkage strip, and a sealing belt is connected to the opening and closing of the shaft and the closing plate, so that when the shaft moves, the sealing belt can be driven to block the gap between the closing plates, thereby completing the sealing (from top to bottom);

[0013] When the two closing plates are closed, the sealing belts on the outside of the shaft rods fit together, and as the linkage bar continues to approach the closing plates, the two shaft rods squeeze each other and move away from the closing plates. When a stone is stuck between the closing plates, the closing plates stop moving due to the reaction force of the stone, while the sealing belt continues to move under the action of the linkage bar, thereby completing the sealing of the hopper. Moreover, a soft magnet is connected to the surface of the sealing belt, so when the two soft magnets fit together, the two sealing belts are attracted to each other by the magnetic force of the soft magnet.

[0014] Preferably, two hinged connecting rods are arranged on the outer side of the closing plate, and the other ends of the connecting rods are connected to the movable frame. Moreover, a telescopic device is connected to the hinged part of the two connecting rods. The telescopic device drives the two closing plates to open and close (from top to bottom is the opening of the closing plate, and from bottom to top is the closing of the closing plate). Any structure that can achieve the above functions can be used, not limited to the following telescopic structure.

[0015] Preferably, it is connected to the opening and closing frame of the hopper, and one end of the opening and closing frame is connected to the hinged part of the two connecting rods; and the opening and closing frame is hinged to the base under the hopper. Therefore, when the opening and closing frame rotates, it can drive the hinged part of the two connecting rods to move up and down, and make the movable frame connected to the other end of the connecting rod perform an opening and closing movement, so as to control the opening and closing of the closing plate.

[0016] Preferably, a hook is hinged to the outer wall of the hopper, and the hook is located on the side of the hopper facing the opening and closing frame. The opening and closing frame is retracted and released through the hook, so that the hopper is in a normally closed state, and there is no need for the staff to always hold the opening and closing frame.

[0017] Preferably, the movable frame is in a "C" shape, and the end of the movable frame is hinged to the closing plate. The movable frame and the closing plate are connected by a pneumatic rod. The pneumatic rod is embedded in the interior of the closing plate, and only a telescopic end is exposed. This telescopic end is connected to the closing plate. High-pressure gas is stored inside the pneumatic rod. For example, the front fork of a bicycle is in a relaxed state in the natural state and can return to the original relaxed state after being squeezed. Therefore, under the action of the pneumatic rod, the movable frame and the closing plate are separated from each other to maintain their relative positions.

[0018] Preferably, a movable rod is hinged to the end of the connecting bar away from the movable frame. The movable rod is used to enable the shaft rod to rotate relative to the connecting bar. When the two shaft rods are pressed against each other, the movable rod drives the connecting bar to move away from the closing plate, so as to completely wrap the stone.

[0019] Preferably, a sleeve is sleeved on the outer part of the shaft rod, and the shaft rod is attached to the sealing belt through the sleeve. In this way, when the sealing belt and the shaft rod move relative to each other, the sliding friction can be changed to rolling friction through the sleeve.

[0020] Preferably, a winding roller is connected to the back of the closing plate, and the winding roller and the end of the sealing belt are connected by a torsion spring. Under the action of the torsion spring, the sealing belt can be wound up.

[0021] (III) Beneficial effects

[0022] Since a movable frame that can move relative to the closing plate is adopted to drive the shaft rods to be squeezed against each other, the sealing belt sleeved on the shaft rods blocks the gap between the closing plates. Therefore, the technical problem that the existing concrete hopper cannot be completely closed when in use, resulting in concrete leakage, is effectively solved, thereby realizing the sealing of the concrete hopper. Secondly, when the closing plate is stuck by a stone column, it can also play an effective sealing role, thereby improving the stability of the hopper seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings.

[0024] Figure 1 This is an overall structural diagram of the utility model when the plugging is closed;

[0025] Figure 2 This is the overall structural diagram of the embodiment of the utility model when the plugging is opened;

[0026] Figure 3 This is a schematic diagram of the opening and closing changes of the plug in the embodiment of the utility model;

[0027] Figure 4 This is a back structural diagram of the opening and closing assembly in the embodiment of the utility model;

[0028] Figure 5 This is an exploded schematic diagram of the opening and closing assembly in the embodiment of the utility model;

[0029] Figure 6 This is a schematic diagram of the use state of the opening and closing component in the embodiment of the utility model;

[0030] Figure 7 This is a cross-sectional view of the opening and closing assembly in the embodiment of the utility model in the use state;

[0031] Figure 8 It is a cross-sectional view of the stone pillars clamped between the closed plates in the embodiment of the utility model.

[0032] Legend: 11. Base; 12. Hopper; 13. Discharge pipe; 14. Lifting ear; 2. Opening and closing assembly; 21. Closing plate; 22. Movable frame; 23. Connecting rod; 24. Opening and closing frame; 25. Transmission rod; 31. Linking strip; 32. Movable rod; 33. Shaft rod; 34. Sleeve; 35. Winding roller; 36. Sealing belt; 37. Gas rod. DETAILED DESCRIPTION

[0033] The embodiment of the present application provides a concrete lower hopper structure, which effectively solves the technical problem that the existing concrete hopper cannot be completely closed when in use, resulting in concrete leakage. When the existing concrete hopper is in use, a movable frame that can move relative to the closing plate is used to drive the shaft rods to be squeezed against each other, so that the sealing belt sleeved on the shaft rods blocks the gap between the closing plates, thereby achieving the sealing of the concrete hopper. Secondly, when the closing plate is stuck by a stone column, it can also play an effective sealing role, thereby improving the stability of the hopper seal.

[0034] Example 1

[0035] The technical solution in the embodiment of the present application effectively solves the technical problem that the existing concrete hopper cannot be completely closed when in use, resulting in concrete leakage. The overall idea is as follows:

[0036] In view of the problems existing in the prior art, the utility model provides a concrete lower hopper structure, which includes a funnel-shaped hopper 12, and the hopper 12 is set on a base 11, and the hopper 12 is set up by four pillars on the base 11. In order to facilitate the lifting of the hopper 12, a plurality of lifting ears 14 are arranged on the edge of the hopper 12. When hanging, it is only necessary to pass the rope through the lifting ears 14, and then the hopper 12 is lifted by the lifting device. The above are all basic structures of the existing hopper 12, and the specific structure will not be repeated here. The structure to be protected by the application is as follows:

[0037] The opening and closing assembly 2 installed on the discharge pipe 13 of the hopper 12 is like a "valve" that can control the opening and closing of the discharge pipe 13 and the flow rate. The opening and closing assembly 2 includes two closing plates 21 that can be opened and closed with each other, and the two closing plates 21 are connected to the discharge port of the discharge pipe 13. In this way, the discharge port of the discharge pipe 13 can be closed and opened by opening and closing the two closing plates 21;

[0038] On this basis, we connect a plug to the closing plate 21 to seal the gap between the two closing plates 21; and the plug includes a movable frame 22 hinged to the closing plate 21, and a linkage bar 31 connected to the outside of the movable frame 22. The linkage bar 31 is formed in an arc shape and fits the outer wall of the closing plate 21, such as Figure 3 and Figure 4 As shown, when the movable frame 22 moves, the linkage bar 31 can be driven to move without affecting the closing plate 21, that is, the closing plate 21 can move relative to the linkage bar 31, so that two sets of sealing structures are formed. When the closing plate 21 is stuck by a stone, the linkage bar 31 can drive the second set of sealing structures to seal the hopper 12;

[0039] In order to seal the hopper 12 when the stone is stuck on the closing plate 21, a shaft 33 is hinged at the end of the linkage bar 31, and a sealing belt 36 is connected to the opening and closing part of the shaft 33 and the closing plate 21. Figure 7 As shown, when the shaft 33 moves, the sealing belt 36 can be driven to block the gap between the closing plates 21, thereby completing the sealing. Figure 7 As shown (from top to bottom);

[0040] When the two closing plates 21 are closed, the sealing strips 36 on the outside of the shaft 33 are in contact with each other, and as the linkage strip 31 continues to approach the closing plates 21 (such as Figure 7 As shown in the two figures below, the two shafts 33 squeeze each other and move away from the closing plate 21. When a stone is clamped between the closing plates 21, the closing plates 21 stop moving due to the reaction force of the stone, while the sealing belt 36 continues to move under the action of the linkage strip 31. Figure 8 As shown, the hopper 12 is sealed, and the surface of the sealing belt 36 is connected with a soft magnet, so when the two soft magnets are attached, the two sealing belts 36 are attracted to each other by the magnetic force of the soft magnets.

[0041] In order to drive the two closing plates 21 to open and close, two mutually hinged connecting rods 23 are arranged on the outer side of the closing plate 21, and the other end of the connecting rod 23 is connected to the movable frame 22. Figure 3 As shown, the hinges of the two connecting rods 23 are connected with a telescopic device, which drives the two closing plates 21 to open and close. Figure 3 As shown (from top to bottom the closing plate 21 is opened, from bottom to top the closing plate 21 is closed), any structure that can achieve the above functions can be used, and is not limited to the following telescopic structure.

[0042] For ease of understanding, we provide a commonly used telescoping structure, as follows:

[0043] The opening and closing frame 24 is connected to the hopper 12, and one end of the opening and closing frame 24 is connected to the hinge of the two connecting rods 23; and the opening and closing frame 24 is hinged to the base 11 below the hopper 12, such as Figure 1 and Figure 2 As shown, when the opening and closing frame 24 rotates, it can drive the hinges of the two connecting rods 23 to move up and down, and make the movable frame 22 connected to the other end of the connecting rod 23 open and close, as shown in FIG. Figure 1 to Figure 2 As shown, and Figure 3 As shown, the opening and closing of the closing plate 21 can be controlled in this way.

[0044] In some examples, a hook is hingedly connected to the outer wall of the hopper 12, and the hook is located on the side of the hopper 12 facing the opening and closing frame 24, and the opening and closing frame 24 is retracted and released by the hook, such as Figure 1 As shown, the hopper 12 is in a normally closed state, eliminating the need for workers to constantly hold the opening and closing frame 24.

[0045] In the specific implementation process, when it is necessary to open the hopper 12:

[0046] Remove the hook from the opening and closing frame 24 and press down on the opening and closing frame 24. At this time, the opening and closing frame 24 rotates about its connection with the base 11. Since one end of the opening and closing frame 24 (such as Figure 3 the transmission rod 25 shown) is connected to the hinge joints of the two connecting rods 23, when the opening and closing frame 24 rotates, the hinge joints of the two connecting rods 23 will move upward, causing the movable frame 22 connected to the other end of the connecting rod 23 to perform an opening and closing movement, as Figure 1 to Figure 2 shown, and Figure 3 shown (from top to bottom), thus controlling the opening of the closing plate 21.

[0047] Similarly, when it is necessary to close the hopper 12:

[0048] Pull the opening and closing frame 24 upward, causing the hinge joints of the two connecting rods 23 to move downward, and the movable frame 22 connected to the other end of the connecting rod 23 to perform a closing movement, as Figure 2 to Figure 1 shown, and Figure 3 shown (from bottom to top), thus controlling the opening of the closing plate 21.

[0049] Embodiment 2

[0050] Based on Embodiment 1, this application embodiment provides a specific sealing structure, and the general idea is as follows:

[0051] The movable frame 22 is in a "C" shape, and the end of the movable frame 22 is hinged to the closing plate 21, as Figure 4 shown. The movable frame 22 and the closing plate 21 are connected by a pneumatic rod 37, and the pneumatic rod 37 is embedded in the interior of the closing plate 21, with only a telescopic end exposed, and this telescopic end is connected to the closing plate 21. High-pressure gas is stored inside the pneumatic rod 37. For example, the front fork of a bicycle is in a diastolic state in its natural state and can return to its original diastolic state after being squeezed. Therefore, under the action of the pneumatic rod 37, the movable frame 22 and the closing plate 21 are separated from each other, maintaining their relative positions.

[0052] In order to completely wrap the stones (the stones stuck between the closing plates 21), a movable rod 32 is hinged to one end of the linkage bar 31 away from the movable frame 22, and the shaft rod 33 can rotate relative to the linkage bar 31 by using the movable rod 32, as Figure 8As shown, when the two shaft rods 33 are pressed against each other, the movable rod 32 drives the linkage bar 31 to move to the side away from the closing plate 21, thereby completely wrapping the stone.

[0053] In order to reduce the friction between the shaft rod 33 and the sealing belt 36, a sleeve 34 can be provided on the outside of the shaft rod 33, and the shaft rod 33 is fitted with the sealing belt 36 through the sleeve 34. In this way, when the sealing belt 36 and the shaft rod 33 move relative to each other, the sliding friction can be changed into rolling friction through the sleeve 34.

[0054] In order to prevent the sealing tape 36 from being scattered, a winding roller 35 can be connected to the back of the closing plate 21, and the winding roller 35 is connected to the end of the sealing tape 36 through a torsion spring. Under the action of the torsion spring, the sealing tape 36 can be wound up.

[0055] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A concrete lower hopper structure, characterized in that: The structure of the hopper includes: A hopper (12) with a discharge pipe (13) connected to its bottom for discharging concrete; Two closable plates (21) that can be opened and closed relative to each other. The two closable plates (21) are connected to the discharge port of the discharge pipe (13), and the discharge port of the discharge pipe (13) is closed and opened by the opening and closing between the two closable plates (21); and A seal, connected to the closable plate (21), which seals the gap between the two closable plates (21); Among them, the seal includes a movable frame (22) hinged to the closable plate (21), and an arc-shaped linkage bar (31) is connected to the outside of the movable frame (22), and the linkage bar (31) is attached to the outer wall of the closable plate (21); A shaft rod (33) is hinged to the end of the linkage bar (31), and a sealing belt (36) is connected between the shaft rod (33) and the opening and closing part of the closable plate (21); When the two closable plates (21) are closed, the sealing belts (36) outside the shaft rod (33) are attached to each other, and as the linkage bar (31) continuously approaches the closable plate (21), the two shaft rods (33) are pressed against each other and move away from the closable plate (21).

2. A concrete lower hopper structure as claimed in claim 1, characterized in that: The hopper structure further includes two link rods (23) hinged to each other, and the other end of the link rod (23) is connected to the movable frame (22); Among them, a telescopic device is connected to the hinged part of the two link rods (23), and the two closable plates (21) are driven to open and close by the telescopic device.

3. A concrete lower hopper structure as claimed in claim 2, characterized in that: The telescopic device includes an opening and closing frame (24) connected to the hopper (12), and one end of the opening and closing frame (24) is connected to the hinged part of the two link rods (23); Among them, the opening and closing frame (24) is hinged to the base (11) below the hopper (12), and when the opening and closing frame (24) drives the hinged part of the two link rods (23) to move up and down, the movable frame (22) connected to the other end of the link rod (23) performs an opening and closing movement.

4. A concrete lower hopper structure as claimed in claim 1, characterized in that: The movable frame (22) is in a "C" shape, and the end of the movable frame (22) is hinged to the closable plate (21), and the movable frame (22) is connected to the closable plate (21) through a pneumatic rod (37); Among them, the pneumatic rod (37) is embedded in the inside of the closable plate (21), and the telescopic end of the movable frame (22) is connected to the closable plate (21). Under the action of the pneumatic rod (37), the movable frame (22) and the closable plate (21) are separated from each other.

5. A concrete lower hopper structure as claimed in claim 1, characterized in that: An activity rod (32) is hinged to the end of the linkage bar (31) away from the movable frame (22), and the shaft rod (33) rotates relative to the linkage bar (31) through the activity rod (32); Among them, when the two shaft rods (33) are pressed against each other, the activity rod (32) drives the linkage bar (31) to move to the side away from the closable plate (21).

6. A concrete lower hopper structure as claimed in claim 5, characterized in that: A sleeve (34) is sleeved outside the shaft rod (33), and the shaft rod (33) is attached to the sealing belt (36) through the sleeve (34).

7. A concrete lower hopper structure as claimed in claim 1, characterized in that: A winding roller (35) is connected to the back of the closable plate (21), and a torsion spring is connected between the winding roller (35) and the end of the sealing belt (36). Under the action of the torsion spring, the sealing belt (36) is wound up.

8. A concrete lower hopper structure as claimed in claim 1, characterized in that: The surface of the sealing belt is connected with a soft magnet, and when the two soft magnets are attached to each other, the two sealing belts are attracted to each other by the magnetic force of the soft magnets.

9. A concrete lower hopper structure as claimed in claim 1, characterized in that: A hook is hingedly connected to the outer wall of the hopper (12), and the hook is located on the side of the hopper (12) facing the opening and closing frame (24), and the opening and closing frame (24) is retracted and released by the hook.

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