Mechanical hopper discharging gate

Abstract

The utility model relates to a mechanical hopper discharging gate which comprises an opening and closing door and a supporting frame which are both installed on a hopper, and is characterized in that the opening and closing door comprises two door buckets which are both rotatably arranged on the hopper and located below a lower port of the hopper; when the two door buckets are buckled, a barrel body with an upper opening is formed, each door bucket is provided with a transmission gear, a transmission gap is formed between the transmission gears on the two door buckets, a driving arm is arranged in the transmission gap, and the driving arm is meshed with the two transmission gears; compared with the prior art, the concrete hopper has the beneficial effects that the opening and closing of the opening and closing door can be conveniently controlled, and the lower port of the hopper can be dredged after the opening and closing door is opened, so that concrete in the hopper can be conveniently discharged.

Description

Technical Field

[0001] The utility model belongs to the field of concrete mixing devices, and in particular relates to a discharge gate used for a mechanical hopper. Background Art

[0002] The existing concrete hopper discharge device usually has two scissor-shaped baffles at the bottom of the hopper, which are opened and closed by two handles to discharge the material. When discharging the material, the two baffles are controlled to open and then discharge the material. If the discharge is to be stopped, the baffles need to be inserted back, but it is difficult to insert the baffles back, and the operator's vision is limited during the discharge process, which is prone to safety accidents.

[0003] In the prior art, a discharge hopper for mortar and concrete is disclosed, and the authorization announcement number is: CN219081020U, which includes a discharge hopper body and a fixed frame. The discharge hopper body is trumpet-shaped, and a discharge valve is provided at its bottom opening. The fixed frame is fixedly connected to the discharge hopper body, and the discharge valve includes a valve plate and a drive assembly. The drive assembly is connected to one of the valve plates, and one of the valve plates is driven to move by the drive assembly. When the valve stem moves, it will rotate through the first gear thereon, and the first gear rotates and meshes with the second gear, thereby driving the other valve plate to move; that is, the opening and closing of the two valve plates can be realized through the drive assembly.

[0004] However, in the above technical solution, although the concrete in the hopper can be discharged after the discharge valve is opened, the lower port of the discharge hopper is easily blocked due to the viscosity of the concrete. Utility Model Content

[0005] The utility model aims to provide a discharge gate which can facilitate the discharge of concrete in a hopper and the discharge of materials.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is a mechanical hopper discharge gate, including a switch gate and a support frame, the switch gate and the support frame are both installed on the hopper, characterized in that: the switch gate includes two door buckets, the two door buckets are rotatably arranged on the hopper and located below the lower port of the hopper, and the two door buckets will form a barrel body with an upper opening when buckled;

[0007] Each door compartment is provided with a transmission gear, and there is a transmission gap between the transmission gears on the two door compartments, and a driving arm is provided in the transmission gap, and the driving arm is meshed with the two transmission gears;

[0008] The driving arm is connected with a pressing plate, which is located above the hopper, and a center frame is arranged below the pressing plate, which is fixed to the upper port of the hopper, and a driving motor is installed on the pressing plate, and a vertical shaft is connected to the driving motor, which passes through the center of the center frame, and a stirring part is installed on the vertical shaft;

[0009] The driving arm and the vertical shaft move vertically at the same time. After the switch door is opened, the stirring part located at the lower end of the vertical shaft extends out from the lower port of the hopper.

[0010] Furthermore, a reference ring is fixed to the upper end of the support frame, and a control ring is screwed onto the reference ring. When the control ring rotates, it drives the pressure plate and the driving arm to move vertically.

[0011] Furthermore, the thickness of the control ring is twice that of the reference ring.

[0012] Furthermore, a cross bar is provided on the driving arm, and the cross bar is located below the control ring. When the control ring moves downward, a thrust is applied to the cross bar. The control ring is located between the pressure plate and the cross bar.

[0013] Furthermore, the pressure plate is connected to a limit rod, the limit rod passes through the center frame, a compression return spring is sleeved on the limit rod, and the compression return spring is located between the center frame and the pressure plate.

[0014] Furthermore, the mixing part includes a plurality of stirring arms, each stirring arm extends along the radial direction of the vertical axis, and the plurality of stirring arms are arranged vertically.

[0015] Furthermore, the length of the stirring arm gradually becomes shorter from top to bottom.

[0016] Furthermore, the stirring part also includes a spiral blade, which is fixed at the lower end of the vertical shaft. When the lower end of the vertical shaft extends out from the lower port of the hopper, part of the spiral blade is still located in the hopper.

[0017] Compared with the prior art, the beneficial effect of the utility model is that the opening and closing of the switch door can be conveniently controlled, and after the switch door is opened, the lower port of the hopper can be unblocked to facilitate the discharge of concrete in the hopper. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the hopper structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the main structure of the application state of the utility model;

[0020] Figure 3 This is a schematic diagram of the connection between the vertical shaft and the stirring part of the utility model;

[0021] Figure 4 It is a top view schematic diagram of the connection between the top frame and the hopper of the utility model;

[0022] Figure 5 It is a side view structural schematic diagram of the utility model;

[0023] Figure 6It is a cross-sectional schematic diagram of the connection structure between the reference ring and the control ring of the utility model;

[0024] Among them, 1- hopper, 2- switch door, 3- door bucket, 4- transmission gear, 5- center frame, 6- pressure plate, 7- vertical shaft, 8- driving motor, 9- driving arm, 10- cross rib, 11- reference ring, 12- control ring, 13- limit rod, 14- compression return spring, 15- top frame, 16- bottom frame, 17- bucket arm, 18- supporting leg, 19- driving handle, 20- stirring arm, 21- spiral blade. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the utility model, and are not used to limit the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various configurations. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the utility model. In the embodiment, the components of the embodiments of the application described and shown in the drawings here can be arranged and designed in various configurations. Therefore, the following detailed description of the embodiments of the application provided in the drawings is not intended to limit the scope of the application claimed for protection, but only represents the selected embodiments of the application.

[0026] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "back" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0027] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be an electrical connection; it can be a hydraulic oil circuit connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0028] See also Figures 1 to 6 As shown, a mechanical hopper discharge gate includes a support frame assembled on the hopper 1, the support frame is connected to a switch door 2, the switch door 2 is located at the lower port of the hopper 1, the switch door 2 includes an open state and a closed state, when the switch door 2 is in the open state, the switch door 2 makes the lower port of the hopper open, and the concrete material located in the hopper 1 can be discharged from the lower port of the hopper 1, when the switch door 2 is in the closed state, the switch door 2 makes the lower port of the hopper closed, and the gate blocks the lower port of the hopper 1.

[0029] The above-mentioned switch door 2 includes two door pockets 3, which will form a barrel body with an upper opening when the two door pockets 3 are buckled. The two door pockets 3 are rotatably arranged on the support frame and the two door pockets 3 are both located below the lower port of the hopper 1. When the switch door 2 is in an open state, the two door pockets 3 are opened to expose the lower port of the hopper 1. The two door pockets 3 are axially connected to the support frame. Each door pocket 3 is provided with a docking plate, and a shaft rod passes through the docking plate. One end of the shaft rod is fixed to the support frame. A transmission gear 4 is also fixed on the docking plate, and the transmission gear 4 is penetrated by the shaft rod. When the transmission gear 4 rotates, the docking plate and the door pocket 3 are flipped and moved accordingly, and there is a transmission gap between the transmission gears 4 on the two door pockets 3.

[0030] A center frame 5 is also provided on the top of the support frame, a pressing plate 6 is provided above the center frame 5, and a vertical through hole is provided at the center of the center frame 5, a vertical shaft 7 passes through the vertical through hole, a stirring part is fixed on the vertical shaft 7, the upper end of the vertical shaft 7 is connected to a driving motor 8 through a coupling, and the driving motor 8 is fixed on the pressing plate 6. After the concrete material enters the hopper 1, the vertical shaft 7 can be rotated by the operation of the driving motor 8, so that the concrete material is stirred by the stirring part. When the switch door 2 is opened, the pressing plate 6 can be controlled to move downward, and the vertical shaft 7 and the stirring part also move downward accordingly, so that the stirring part located at the lower end of the vertical shaft 7 extends out from the lower port of the hopper 1. When the stirred material is discharged from the lower port of the hopper 1, the vertical shaft 7 drives the stirring part to stir the concrete material, which is convenient for the discharge of the concrete material and avoids the concrete material from being blocked at the lower port of the hopper 1.

[0031] A driving arm 9 is fixed near the end of the pressing plate 6, and the lower end of the driving arm 9 passes through the transmission gap, and a protruding tooth is arranged at the lower part of the driving arm 9, and the protruding tooth extends to the lower end of the driving arm 9. When the driving arm 9 is located in the transmission gap, the driving arm 9 is meshed with the transmission gears on the two door buckets 3, so when the pressing plate 6 moves downward, the switch door 2 can be controlled to open, that is, in the process of opening the switch door 2, the lower end of the stirring shaft 7 moves downward from the hopper to extend from the lower port of the hopper;

[0032] When the control plate 6 moves downward, a cross bar 10 is fixed on the driving arm 9, and a reference ring 11 is fixed on the upper end of the support frame. The center of the reference ring 11 is located on the central axis of the hopper 1. A control ring 12 is sleeved on the reference ring 11. Both the reference ring 11 and the control ring 12 are circular ring bodies. The thickness of the control ring 12 is greater than that of the reference ring 11. The thickness of the control ring 12 is designed to be at least twice that of the reference ring 11. When the switch door 2 is in a closed state, the cross bar 10 on the driving arm 9 is located below the control ring 12, and the cross bar 10 and the control ring 12 are in contact with each other. The control ring 12 is in contact with the reference ring 11, and the control ring 12 is screwed with the reference ring 11 through a thread. When the control ring 12 rotates, the control ring 12 will move vertically. When the control ring 12 moves downward, the control ring 12 applies a downward thrust to the cross bar 10. A notch is provided on the upper side of the cross bar 10, and the lower side of the control ring 12 is located in the notch, thereby controlling the driving arm 9 and the pressure plate 6 to move downward. When the switch door 2 is fully opened, the control ring 12 also reaches the lowest position that can be moved. At this time, the control ring 12 can move upward after rotating in the opposite direction;

[0033] A limit rod 13 is fixed on the pressure plate 6, and the limit rod 13 extends downward. A limit hole for passing the limit rod 13 is provided on the center frame 5, and the limit rod 13 passes through the limit hole. At this time, a compression return spring 14 located between the center frame 5 and the pressure plate 6 is sleeved on the limit rod 13. When the control ring 12 rotates clockwise, the control ring 12 moves downward. At this time, the pressure plate 6 moves downward accordingly, but since the horizontal height of the center frame 5 remains unchanged, the compression return spring 14 will be compressed. After the discharge of the hopper 1 is completed, the control ring 12 is rotated counterclockwise to move the control ring 12 upward. Under the action of the restoring force of the compression return spring 14, the pressure plate 6 will be driven to move upward, thereby causing the driving arm 9 to move upward, and the control switch door 2 is controlled to close again;

[0034] The thickness and position of the control ring 12 can also be adjusted so that the vertical movement of the pressure plate 6 can be controlled when the control ring 12 rotates. For example, the control ring 12 is located between the pressure plate 6 and the cross rib 10, and the control ring 12 is in contact with the pressure plate 6 and the cross rib 10 at the same time. When the control ring 12 moves downward, a downward thrust is applied to the cross rib 10. When the control ring 12 moves upward, an upward thrust is applied to the end of the pressure plate 6, thereby realizing the vertical movement of the driving arm 9.

[0035] In addition, the support frame in the present application includes a top frame 15 and a bottom frame 16, the bottom frame 16 is axially connected to the switch door 2, the top frame 15 and the bottom frame 16 are respectively installed at the upper port and the lower port of the hopper 1, the reference ring 11 is fixed on the top frame 15, and a bucket support arm 17 is connected between the top frame 15 and the bottom frame 16. The bucket support arm 17 is arranged around the hopper, and a support leg 18 is fixed on the bucket support arm 17. When the lower end of the support leg 18 contacts the ground, the lower port of the hopper 1 is at a certain distance from the ground. Before the switch door 2 is opened, the cart for holding concrete materials can be moved to the bottom of the hopper 1, so that the concrete can be directly discharged into the cart.

[0036] To facilitate the rotation of the control ring 12, a driving handle 19 is fixed on the outer circumferential surface of the control ring 12. The driving handle 19 extends in the radial direction of the control ring 12. By pushing the driving handle 19 to move around the central axis of the control ring 12, the control ring 12 can be driven to rotate.

[0037] In this embodiment, the stirring part includes a plurality of stirring arms 20, each stirring arm 20 extends along the radial direction of the vertical shaft, and the plurality of stirring arms 20 are arranged vertically, and the lengths of the plurality of stirring arms 20 gradually become shorter from top to bottom. When the vertical shaft 7 rotates, the concrete is stirred by the stirring arms 20;

[0038] In order to increase the discharge effect of concrete, the mixing part also includes a spiral blade 21, which is fixed at the lower end of the vertical shaft 7. When the lower end of the vertical shaft 7 extends from the lower port of the hopper, part of the spiral blade 21 is still located in the hopper. When the switch door 2 is not opened, there is a certain distance between the lower end of the spiral blade 21 and the bottom of the switch door 2. At this time, the spiral blade 21 does not affect the mixing of the concrete in the hopper. When the switch door 2 is opened, the rotation of the spiral blade 21 can promote the discharge of concrete at the lower port of the hopper.

[0039] It should be noted that the drive motor in this application can be connected to a mobile power supply or directly connected to a power socket at the construction site through a wire. The drive motor adopts an existing product and is only a device that provides torque for the opposite shafts, which can be purchased.

[0040] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A mechanical hopper discharge gate, comprising a switch gate and a support frame, both of which are mounted on the hopper, characterized in that: The switch door comprises two door pockets, both of which are rotatably arranged on the support frame and located below the lower port of the hopper, and the two door pockets form a barrel body with an upper opening when buckled; Each door compartment is provided with a transmission gear, and there is a transmission gap between the transmission gears on the two door compartments, and a driving arm is provided in the transmission gap, and the driving arm is meshed with the two transmission gears; The driving arm is connected with a pressing plate, which is located above the hopper, and a center frame is arranged below the pressing plate, which is fixed to the upper port of the hopper, and a driving motor is installed on the pressing plate, and the driving motor is connected with a vertical shaft, which passes through the center of the center frame, and a stirring part is installed on the vertical shaft; The driving arm and the vertical shaft move vertically at the same time. After the switch door is opened, the stirring part located at the lower end of the vertical shaft extends out from the lower port of the hopper.

2. A mechanical hopper discharge gate according to claim 1, characterized in that: A reference ring is fixed on the upper end of the support frame, and a control ring is screwed on the reference ring. When the control ring rotates, the pressure plate and the driving arm are driven to move vertically.

3. A mechanical hopper discharge gate according to claim 2, characterized in that: The thickness of the control ring is twice that of the reference ring.

4. The mechanical hopper discharge gate according to claim 2, characterized in that: The driving arm is provided with a transverse rib, which is located below the control ring. When the control ring moves downward, a thrust is applied to the transverse rib. The control ring is located between the pressure plate and the transverse rib.

5. The mechanical hopper discharge gate according to claim 4, characterized in that: The pressing plate is connected with a limiting rod, the limiting rod penetrates the center frame, a compression return spring is sleeved on the limiting rod, and the compression return spring is located between the center frame and the pressing plate.

6. The mechanical hopper discharge gate according to claim 1, characterized in that: The stirring part comprises a plurality of stirring arms, each of which extends along the radial direction of the vertical axis, and the plurality of stirring arms are arranged vertically.

7. A mechanical hopper discharge gate according to claim 6, characterized in that: The length of the stirring arm gradually becomes shorter from top to bottom.

8. The mechanical hopper discharge gate according to claim 6, characterized in that: The stirring part also includes a spiral blade, which is fixed at the lower end of the vertical shaft. When the lower end of the vertical shaft extends out from the lower port of the hopper, part of the spiral blade is still located in the hopper.

Images