Discharge structure for concrete mixing tank
By introducing a combined structure of a pusher plate and a drive assembly into the concrete mixing tank, the problem of discharge pipe blockage was solved, achieving stable discharge and efficient processing of concrete.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- POWERCHINA WATER ENVIRONMENT GOVERANCE
- Filing Date
- 2025-06-24
- Publication Date
- 2026-05-29
AI Technical Summary
The discharge structure of existing concrete mixing tanks is prone to blockage due to concrete adhesion, which can cause the valve control function to fail, affecting the normal discharge and processing efficiency of concrete.
The system employs a combination structure of a pusher disc and a drive assembly. The pusher disc slides and scrapes concrete within the discharge pipe, while the discharge disc and valve control ensure stable discharge and containment of concrete, preventing blockages.
It improves the stability and processing efficiency of the concrete discharge process, ensuring the normal use of concrete.
Smart Images
Figure CN224296175U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of concrete processing technology, specifically relating to a discharge structure for a concrete mixing tank. Background Technology
[0002] The raw materials for concrete mainly include cement, sand, gravel, water, and admixtures and mineral admixtures added as needed. In actual production, these materials are mixed to form a homogeneous mixture, and the device used for mixing them is usually called a concrete mixing tank.
[0003] In the prior art, a discharge pipe is connected to the bottom of the concrete mixing tank, and the opening and closing of this discharge pipe is controlled by a valve body. In actual use, the discharge pipe is opened by the valve body, so that the mixed concrete enters the discharge pipe under its own weight and is discharged to the outside, thereby completing the concrete discharge process.
[0004] The inventors discovered that existing discharge structures, during use, can cause concrete to adhere to the discharge pipe and block the pipe, leading to the failure of the valve's control function, the inability to discharge concrete in a timely manner, and thus affecting the normal use of concrete and reducing the processing efficiency of concrete. Utility Model Content
[0005] This application provides a discharge structure for a concrete mixing tank, which aims to improve the stability of the concrete discharge process in the mixing state, ensure the normal use of concrete, and improve the processing efficiency of concrete.
[0006] To achieve the above objectives, the technical solution adopted in this application is as follows:
[0007] A discharge structure for a concrete mixing tank is provided, for use in the tank body, wherein a discharge port is provided at the bottom of the tank body; comprising:
[0008] A discharge pipe is provided at the bottom of the tank and communicates with the discharge port; the outer circumferential surface of the discharge pipe is provided with a discharge port communicating with its interior.
[0009] A pusher disc is slidably disposed within the discharge pipe, with its outer circumferential surface in contact with the inner circumferential surface of the discharge pipe, so that it scrapes away the concrete adhering to the discharge pipe when it moves; the pusher disc is driven by a drive assembly adapted to move the pusher disc to the upper or lower side of the discharge port; and
[0010] A feeding tray is fitted around the outer periphery of the discharge pipe and is located below the discharge port; the feeding tray has a through hole running vertically through it, and the through hole is connected to the feeding pipe, which is connected to a valve body.
[0011] In one possible implementation, the bottom surface of the pusher disc has a downwardly extending drive shaft, the lower end of which extends out of the discharge pipe; the drive assembly includes:
[0012] A base is provided for placement on a horizontal surface below the discharge pipe;
[0013] A lifting seat is disposed at the lower end of the drive shaft to rise and fall synchronously with the drive shaft; and
[0014] Two translational members are arranged side by side in the horizontal direction between the base and the lifting seat, and there is an adjustment structure between the two translational members to adjust the horizontal distance between the two translational members;
[0015] Each of the translational members and the base has a lower swing arm, with both ends of the lower swing arm hinged to the translational member and the base respectively; each of the translational members and the lifting seat has an upper swing arm, with both ends of the upper swing arm hinged to the translational member and the lifting seat respectively.
[0016] In one possible implementation, the upper side of the lifting seat is provided with a groove, and the lower end of the drive shaft is inserted into the groove so that the drive shaft can rotate relative to the lifting seat.
[0017] The upper side of the pusher disc has a plurality of protruding teeth spaced apart along its circumference. The outer circumferential surface of each protruding tooth is aligned with the outer circumferential surface of the pusher disc, so that when the pusher disc rotates synchronously with the drive shaft, the protruding teeth can scrape off the concrete adhering to the discharge pipe.
[0018] In one possible implementation, the lower end of the discharge pipe is detachably connected to a baffle plate suitable for sealing its inner cavity; the baffle plate has a reserved hole extending in the vertical direction, suitable for the transmission shaft to pass through.
[0019] In one possible implementation, the adjustment structure includes:
[0020] Two threaded holes are respectively opened on the two translational members, and they are coaxially arranged; and
[0021] A double-ended screw has two threaded portions with opposite thread directions, and the two threaded portions are respectively threadedly connected to two threaded holes, so that when the double-ended screw rotates, the two translational members move towards each other or away from each other;
[0022] One end of the double-ended screw extends to the outside of the translational member, and a handle is connected to the extended end.
[0023] In one possible implementation, the upper side of the pusher plate has a structure that bulges upward at the center, so that the concrete falling on the pusher plate moves towards the outer edge of the pusher plate.
[0024] In one possible implementation, the upper end of the discharge pipe has a mounting plate extending radially outward therefrom, and the discharge structure further includes:
[0025] A support frame is provided on the bottom surface of the tank and surrounds the discharge port; the support frame has a positioning groove extending radially therethrough, the positioning groove being adapted for embedding the mounting plate, such that the lower side of the mounting plate abuts against the support frame, and the upper side of the mounting plate contacts the bottom surface of the tank; the discharge pipe communicates with the discharge port; and
[0026] The alignment plate is slidably inserted into the positioning groove and has a locking structure with the support frame;
[0027] When the alignment plate is inserted into the positioning slot and the alignment plate and the support frame are connected by the locking structure, the alignment plate can abut against the mounting plate to restrict the movement of the mounting plate relative to the support frame.
[0028] In one possible implementation, the outer peripheral surface of the mounting disk has a plurality of slots, the plurality of slots being arranged at intervals along the circumferential direction of the mounting disk;
[0029] The insertion end of the alignment plate has a rod adapted to be inserted into any of the slots to restrict the rotation of the discharge tube relative to the support frame.
[0030] In one possible implementation, the locking structure includes:
[0031] A locking hole is formed on the support frame, and its axis is parallel to the horizontal plane and perpendicular to the through direction of the positioning groove; and
[0032] A stop rod is slidably disposed on the alignment plate and is adapted to be inserted into the locking hole to limit the relative movement of the alignment plate and the support frame;
[0033] The alignment plate has a guide shaft fixedly connected to its lower side; the axial direction of the guide shaft is parallel to the sliding direction of the stop rod, and the stop rod has a connecting block slidably connected to the guide shaft; and a spring is sleeved on the guide shaft, with both ends of the spring connected to the connecting block and the alignment plate respectively.
[0034] When the stop rod moves to exit the locking hole, the spring is in an elastic deformation state to drive the stop rod toward the locking hole.
[0035] In one possible implementation, there are multiple through holes; the multiple through holes are spaced apart circumferentially along the feed tray, and each through hole is connected to the feed pipe, and each feed pipe is connected to the valve body.
[0036] In this embodiment, the concrete discharged from the tank outlet can fall onto the pusher plate through the discharge pipe. By adjusting the relative position of the pusher plate and the discharge outlet through the drive component, the concrete accumulated on the pusher plate can be discharged from the discharge outlet to the upper side of the discharge plate and finally enter the discharge plate through the through hole. By controlling the valve body, the timing of concrete discharge can be controlled to complete the concrete discharge operation.
[0037] If concrete blocks the discharge pipe during the concrete discharge process, the pusher plate can be moved upward by the drive component to push the concrete into the tank to re-participate in the mixing; then the pusher plate can be reset to the lower side of the discharge port by the drive component to ensure the smooth discharge of concrete.
[0038] During the mixing of concrete inside the tank, the pusher plate can be moved to the upper side of the discharge port by the drive component, thereby closing the discharge pipe; normally, the pusher plate will move to the inside of the discharge port to prevent concrete from entering the discharge pipe.
[0039] The discharge structure for concrete mixing tanks provided in this embodiment can significantly improve the stability of the concrete discharge process in the mixing state compared with the prior art, ensure the normal use of concrete, and improve the processing efficiency of concrete. Attached Figure Description
[0040] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0041] Figure 1 A three-dimensional structural diagram of the discharge structure for a concrete mixing tank provided in an embodiment of this application;
[0042] Figure 2 for Figure 1 Side view;
[0043] Figure 3 For along Figure 2 Cross-sectional view of line AA in the middle;
[0044] Figure 4 This is a three-dimensional structural diagram of the discharge pipe used in the embodiments of this application;
[0045] Figure 5 This is a three-dimensional structural diagram of the pusher tray used in the embodiments of this application;
[0046] Figure 6 This is a cross-sectional view of the feed tray used in the embodiments of this application;
[0047] Figure 7 This is a three-dimensional structural diagram of the driving component used in the embodiments of this application;
[0048] Figure 8 This is an exploded view of the adjustable distance structure used in the embodiments of this application.
[0049] Figure 9 This is a partial schematic diagram of the drive shaft and lifting seat used in the embodiments of this application from an exploded view.
[0050] Figure 10 This is an exploded structural diagram of the support frame and alignment plate used in the embodiments of this application;
[0051] Figure 11 This is a bottom view of the alignment plate used in the embodiments of this application;
[0052] Figure 12 For along Figure 11 Cross-sectional view of the middle BB line;
[0053] Figure 13 This is a three-dimensional structural diagram of the alignment plate used in the embodiments of this application;
[0054] Explanation of reference numerals in the attached drawings: 1. Discharge pipe; 11. Discharge port; 12. Baffle plate; 121. Reserved hole; 13. Mounting plate; 131. Slot; 2. Push plate; 21. Drive shaft; 22. Protruding tooth; 3. Feed plate; 31. Through hole; 32. Feed pipe; 321. Valve body; 4. Drive assembly; 41. Base; 42. Lifting seat; 421. Groove; 43. Translation component; 431. Lower swing arm; 432. Upper swing arm; 5. Adjustment structure; 51. Threaded hole; 52. Double-ended screw; 521. Handle; 6. Support frame; 61. Positioning groove; 7. Alignment plate; 71. Insert rod; 72. Guide shaft; 8. Locking structure; 81. Locking hole; 82. Stop rod; 821. Connecting block; 9. Spring. Detailed Implementation
[0055] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.
[0056] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.
[0057] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0058] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0059] Please refer to the following: Figures 1 to 13 The discharge structure for a concrete mixing tank provided in this application will now be described. The discharge structure for a concrete mixing tank proposed in this application includes a discharge pipe 1, a pusher plate 2, and a discharge tray 3.
[0060] In this embodiment, for the sake of simplicity, the concrete mixing tank is simply referred to as the tank body; and the outlet of the concrete mixing tank is simply referred to as the discharge port. Concrete-related materials are mixed inside the tank, and the mixed concrete is discharged downwards through the discharge port.
[0061] The discharge pipe 1 is installed at the bottom of the tank and communicates with the discharge port. Normally, the discharge pipe 1 is detachably connected to the tank to facilitate disassembly and cleaning. The outer circumferential surface of the discharge pipe 1 has a discharge port 11 communicating with its interior. In this embodiment, the width of the discharge port 11 is smaller than the inner diameter of the discharge pipe 1.
[0062] The pusher plate 2 is slidably disposed inside the discharge pipe 1, and its outer peripheral surface is in contact with the inner peripheral surface of the discharge pipe 1, so that the concrete in the discharge pipe 1 can fall onto the upper side of the pusher plate 2; and, when the pusher plate 2 moves relative to the discharge pipe 1, the outer edge of the pusher plate 2 can scrape off the concrete adhering to the discharge pipe 1.
[0063] The pusher plate 2 is connected to a drive assembly 4, which is used to drive the pusher plate 2 to move relative to the discharge pipe 1, so that the pusher plate 2 moves to the upper or lower side of the discharge port 11.
[0064] When the pusher plate 2 moves to the upper side of the discharge port 11, the concrete in the discharge pipe 1 cannot enter the discharge port 11, and the discharge pipe 1 is in a closed state at this time.
[0065] When the pusher plate 2 moves to the lower side of the discharge port 11, the concrete in the discharge pipe 1 will accumulate on the pusher plate 2 and eventually be discharged through the discharge port 11. At this time, the discharge pipe 1 is in an open state. In this embodiment, the upper side of the pusher plate 2 is aligned with the inner bottom surface of the discharge port 11 to ensure that the concrete is fully discharged.
[0066] The discharge tray 3 is fitted around the outer periphery of the discharge pipe 1 and is located below the discharge port 11 to receive the concrete discharged from the discharge port 11. The discharge tray 3 has a through hole 31 extending vertically, and a discharge pipe 32 extending downward and communicating with the through hole 31 is connected to the discharge pipe 32. A valve body 321 for controlling the opening and closing of the pipe is connected to the discharge pipe 32.
[0067] In this embodiment, the concrete discharged from the tank outlet can fall onto the pusher plate 2 through the discharge pipe 1. By adjusting the relative position of the pusher plate 2 and the discharge port 11 through the drive component 4, the concrete accumulated on the pusher plate 2 can be discharged from the discharge port 11 to the upper side of the discharge plate 3, and finally enter the discharge plate 3 through the through hole 31. By controlling the valve body 321, the timing of concrete discharge can be controlled to complete the concrete discharge operation.
[0068] If concrete blocks the discharge pipe 1 during the concrete discharge process, the pusher plate 2 can be moved upward by the drive component 4 to push the concrete into the tank to re-participate in the mixing; then the pusher plate 2 can be reset to the lower side of the discharge port 11 by the drive component 4 to ensure the smooth discharge of concrete.
[0069] During the mixing of concrete inside the tank, the pusher plate 2 can be moved to the upper side of the discharge port 11 by the drive component 4, thereby closing the discharge pipe 1. Normally, the pusher plate 2 will move to the inside of the discharge port to restrict concrete from entering the discharge pipe 1.
[0070] The discharge structure for concrete mixing tanks provided in this embodiment can significantly improve the stability of the concrete discharge process in the mixing state compared with the prior art, ensure the normal use of concrete, and improve the processing efficiency of concrete.
[0071] In some embodiments, such as Figure 3 and Figure 7As shown, the bottom surface of the pusher plate 2 has a drive shaft 21, which is coaxially arranged with the pusher plate 2 and extends downward to the discharge pipe 1.
[0072] Based on the foregoing, the drive assembly 4 includes a base 41, a lifting seat 42, and two translational members 43.
[0073] The base 41 is used to be set on a horizontal surface below the discharge pipe 1, and is usually fixed to the ground by means of its outwardly flared side wings.
[0074] The lifting seat 42 is located at the lower end of the drive shaft 21 so as to rise and fall synchronously with the drive shaft 21.
[0075] Two translational members 43 are disposed between the base 41 and the lifting seat 42, and the two translational members 43 are arranged side by side in the horizontal direction. There is an adjusting structure 5 between the two translational members 43, which can drive the two translational members 43 to move towards each other or away from each other, so as to adjust the distance between the two translational members 43.
[0076] Each translation member 43 and the base 41 have a lower swing arm 431, the two ends of which are hinged to the translation member 43 and the base 41 respectively, and the hinge axis is parallel to the horizontal plane and perpendicular to the arrangement direction of the two translation members 43; each translation member 43 and the lifting seat 42 have an upper swing arm 432, the two ends of which are hinged to the translation member 43 and the lifting seat 42 respectively, and the hinge axis is parallel to the horizontal plane and perpendicular to the arrangement direction of the two translation members 43.
[0077] When the two translational members 43 move toward each other or away from each other, the upper swing arm 432 and the lower swing arm 431 swing adaptively, thereby causing the distance between the base 41 and the lifting seat 42 to change adaptively, so as to achieve the technical purpose of driving the pusher plate 2 to rise and fall through the transmission shaft 21.
[0078] In some embodiments, such as Figure 3 , Figure 5 and Figure 9 As shown, a groove 421 is provided on the upper side of the lifting seat 42, and the lower end of the drive shaft 21 is inserted into the groove 421 so that the drive shaft 21 can rotate relative to the lifting seat 42.
[0079] Based on the aforementioned structure, the upper side of the pusher plate 2 has a plurality of protruding teeth 22 spaced apart along its circumference, and the outer peripheral surface of each protruding tooth 22 is aligned with the outer peripheral surface of the pusher plate 2. When the pusher plate 2 rotates synchronously with the drive shaft 21, the protruding teeth 22 can scrape off the concrete adhering to the discharge pipe 1, thereby improving the cleaning effect on the inner wall of the discharge pipe 1.
[0080] In some embodiments, such as Figure 3 and Figure 4As shown, the lower end of the discharge pipe 1 is detachably connected to a baffle plate 12 suitable for sealing its inner cavity; in this embodiment, the lower end of the discharge pipe 1 and the baffle plate 12 are detachably connected by a bolt and nut structure.
[0081] The baffle plate 12 has a reserved hole 121 that runs through the vertical direction. The reserved hole 121 is suitable for the transmission shaft 21 to pass through, so as to prevent the material in the discharge pipe 1 from escaping from its lower end opening, thereby avoiding affecting the site environment, especially avoiding affecting the drive assembly 4 located below it.
[0082] In some embodiments, such as Figure 7 and Figure 8 As shown, the adjustable pitch structure 5 includes two threaded holes 51 and a double-ended screw 52.
[0083] Two threaded holes 51 are respectively opened on two translational members 43, and they are coaxially arranged.
[0084] The double-ended screw 52 is disposed between two translational members 43; the double-ended screw 52 has two threaded portions with opposite thread directions, and the two threaded portions are respectively threadedly connected to two threaded holes 51, so that when the double-ended screw 52 rotates, the two translational members 43 move towards each other or away from each other.
[0085] To facilitate control of the double-ended screw 52, one end of the double-ended screw 52 extends to the outside of the translation member 43, and its extended end is connected to a handle 521.
[0086] In some embodiments, such as Figure 3 and Figure 6 As shown, the upper side of the pusher plate 2 has an upward bulge at the center, which allows the concrete falling on the pusher plate 2 to move towards the outer edge of the pusher plate 2, thereby improving the concrete discharge efficiency. In actual use, the pusher plate 2 can also be rotated by the drive shaft 21, so that the material on the pusher plate 2 is thrown out by centrifugal force.
[0087] In some embodiments, such as Figure 1 , Figure 3 and Figure 10 As shown, the upper end of the discharge pipe 1 has a mounting plate 13 extending radially outward, and the discharge structure also includes a support frame 6 and an alignment plate 7.
[0088] The support frame 6 is used to be installed on the bottom surface of the tank and is arranged around the discharge port; in this embodiment, the vertical section of the support frame 6 is L-shaped to form a radially penetrating positioning groove 61.
[0089] In actual use, the positioning groove 61 is suitable for the mounting plate 13 to be embedded, so that the lower side of the mounting plate 13 abuts against the support frame 6, and the upper side of the mounting plate 13 is connected to the bottom surface of the tank, and the discharge pipe 1 is connected to the discharge port, thereby achieving the technical purpose of suspending the discharge pipe 1 at the bottom of the tank.
[0090] To improve the stability of the discharge pipe 1 suspension and prevent the mounting plate 13 from bending, an annular groove is also provided on the upper side of the mounting plate 13, and a reinforcing ring made of hard material is embedded in the annular groove.
[0091] The alignment plate 7 is slidably inserted into the positioning groove 61 and has a locking structure 8 between it and the support frame 6.
[0092] When the alignment plate 7 is inserted into the positioning slot 61 and the alignment plate 7 and the support frame 6 are connected by the locking structure 8, the alignment plate 7 can abut against the mounting plate 13 to restrict the movement of the mounting plate 13 relative to the support frame 6.
[0093] In some embodiments, such as Figure 4 and Figure 11 As shown, the outer peripheral surface of the mounting plate 13 has a plurality of slots 131, which are arranged at intervals along the circumference of the mounting plate 13.
[0094] The insertion end of the alignment plate 7 has a plug 71 suitable for insertion into any of the slots 131. By inserting the plug 71 into the slot 131, the rotation of the discharge tube 1 relative to the support frame 6 can be restricted.
[0095] In some embodiments, such as Figures 10 to 13 As shown, the locking structure 8 includes a locking hole 81 and a stop rod 82.
[0096] The locking hole 81 is opened on the support frame 6, and its axis is parallel to the horizontal plane and perpendicular to the through direction of the positioning groove 61.
[0097] The stop rod 82 is slidably disposed on the alignment plate 7 and is adapted to be inserted into the locking hole 81 to limit the relative movement of the alignment plate 7 and the support frame 6.
[0098] To enable the movement of the stop rod 82, the lower side of the alignment plate 7 has a guide shaft 72 fixedly connected to it via a bracket; the axial direction of the guide shaft 72 is parallel to the sliding direction of the stop rod 82, and the stop rod 82 has a connecting block 821 slidably connected to the guide shaft 72. Based on this, a spring 9 is sleeved on the guide shaft 72, and the two ends of the spring 9 are respectively connected to the connecting block 821 and the alignment plate 7.
[0099] When the stop rod 82 moves to the exit lock hole 81, the spring 9 is in an elastic deformation state to facilitate the movement of the stop rod 82 toward the lock hole 81.
[0100] In some embodiments, such as Figure 6 As shown, there are multiple through holes 31; the multiple through holes 31 are arranged at intervals along the circumference of the feeding disc 3, and each through hole 31 is connected to a feeding pipe 32, and each feeding pipe 32 is connected to a valve body 321.
[0101] In actual use, by rotating the feeding disc 3, different areas of the feeding disc 3 can be aligned with the discharge port 11, so that the material discharged from the discharge port 11 is evenly distributed on the feeding disc 3. Based on this, multiple feeding pipes 32 arranged in a circumferential direction are set up, and they are individually controlled by multiple corresponding valve bodies 321, so that the discharge operation of different areas can be controlled, and the efficiency of the device can be optimized.
[0102] The above content is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A discharge structure for a concrete mixing tank, used in the tank body, wherein a discharge port is provided at the bottom of the tank body; characterized in that, include: A discharge pipe is provided at the bottom of the tank and communicates with the discharge port; the outer circumferential surface of the discharge pipe is provided with a discharge port communicating with its interior. A pusher disc is slidably disposed within the discharge pipe, with its outer circumferential surface in contact with the inner circumferential surface of the discharge pipe, so that it scrapes away the concrete adhering to the discharge pipe when it moves; the pusher disc is driven by a drive assembly adapted to move the pusher disc to the upper or lower side of the discharge port; and A feeding tray is fitted around the outer periphery of the discharge pipe and is located below the discharge port; the feeding tray has a through hole running vertically through it, and the through hole is connected to the feeding pipe, which is connected to a valve body.
2. The discharge structure for a concrete mixing tank as described in claim 1, characterized in that, The bottom surface of the pusher disc has a downwardly extending drive shaft, the lower end of which extends out of the discharge pipe; the drive assembly includes: A base is provided for placement on a horizontal surface below the discharge pipe; A lifting seat is disposed at the lower end of the drive shaft to rise and fall synchronously with the drive shaft; and Two translational members are arranged side by side in the horizontal direction between the base and the lifting seat, and there is an adjustment structure between the two translational members to adjust the horizontal distance between the two translational members; Each of the translational members and the base has a lower swing arm, with both ends of the lower swing arm hinged to the translational member and the base respectively; each of the translational members and the lifting seat has an upper swing arm, with both ends of the upper swing arm hinged to the translational member and the lifting seat respectively.
3. The discharge structure for a concrete mixing tank as described in claim 2, characterized in that, The upper side of the lifting seat is provided with a groove, and the lower end of the drive shaft is inserted into the groove so that the drive shaft can rotate relative to the lifting seat. The upper side of the pusher disc has a plurality of protruding teeth spaced apart along its circumference. The outer circumferential surface of each protruding tooth is aligned with the outer circumferential surface of the pusher disc, so that when the pusher disc rotates synchronously with the drive shaft, the protruding teeth can scrape off the concrete adhering to the discharge pipe.
4. The discharge structure for a concrete mixing tank as described in claim 2, characterized in that, The lower end of the discharge pipe is detachably connected to a baffle plate suitable for sealing its inner cavity; the baffle plate has a reserved hole that runs through the vertical direction and is suitable for the transmission shaft to pass through.
5. The discharge structure for a concrete mixing tank as described in claim 2, characterized in that, The adjustment structure includes: Two threaded holes are respectively opened on the two translational members, and they are coaxially arranged; and A double-ended screw has two threaded portions with opposite thread directions, and the two threaded portions are respectively threadedly connected to two threaded holes, so that when the double-ended screw rotates, the two translational members move towards each other or away from each other; One end of the double-ended screw extends to the outside of the translational member, and a handle is connected to the extended end.
6. The discharge structure for a concrete mixing tank as described in any one of claims 1-5, characterized in that, The upper side of the pusher plate has an upward bulge at the center, so that the concrete falling on the pusher plate moves towards the outer edge of the pusher plate.
7. The discharge structure for a concrete mixing tank as described in claim 1, characterized in that, The upper end of the discharge pipe has a mounting plate extending radially outward therefrom, and the discharge structure further includes: A support frame is provided on the bottom surface of the tank and surrounds the discharge port; the support frame has a positioning groove extending radially therethrough, the positioning groove being adapted for embedding the mounting plate, such that the lower side of the mounting plate abuts against the support frame, and the upper side of the mounting plate contacts the bottom surface of the tank; the discharge pipe communicates with the discharge port; and The alignment plate is slidably inserted into the positioning groove and has a locking structure with the support frame; When the alignment plate is inserted into the positioning slot and the alignment plate and the support frame are connected by the locking structure, the alignment plate can abut against the mounting plate to restrict the movement of the mounting plate relative to the support frame.
8. The discharge structure for a concrete mixing tank as described in claim 7, characterized in that, The outer peripheral surface of the mounting plate has multiple slots, and the multiple slots are arranged at intervals along the circumference of the mounting plate; The insertion end of the alignment plate has a rod adapted to be inserted into any of the slots to restrict the rotation of the discharge tube relative to the support frame.
9. The discharge structure for a concrete mixing tank as described in claim 7, characterized in that, The locking structure includes: A locking hole is formed on the support frame, and its axis is parallel to the horizontal plane and perpendicular to the through direction of the positioning groove; and A stop rod is slidably disposed on the alignment plate and is adapted to be inserted into the locking hole to limit the relative movement of the alignment plate and the support frame; The alignment plate has a guide shaft fixedly connected to its lower side; the axial direction of the guide shaft is parallel to the sliding direction of the stop rod, and the stop rod has a connecting block slidably connected to the guide shaft; and a spring is sleeved on the guide shaft, with both ends of the spring connected to the connecting block and the alignment plate respectively. When the stop rod moves to exit the locking hole, the spring is in an elastic deformation state to drive the stop rod toward the locking hole.
10. The discharge structure for a concrete mixing tank as described in claim 1, characterized in that, The through holes are multiple; the multiple through holes are spaced apart along the circumference of the feeding tray, and each through hole is connected to the feeding pipe, and each feeding pipe is connected to the valve body.