Novel integral discharge door device

Abstract

The utility model relates to a novel integral type discharging door device which comprises a barrel body, a material gathering door frame is installed at a discharging opening in the bottom of the barrel body, a door frame shaft sleeve is installed on the front portion of the material gathering door frame, a bearing is installed inside the door frame shaft sleeve, and a door shaft is installed on the door frame shaft sleeve in a rotating mode through the bearing. A door body is mounted on the door shaft, and the door body is driven by an opening and closing unit to open or close the discharge port; an induction plate is arranged at the top of the door body and matched with an induction switch located on the outer side of the barrel body to limit the opening and closing position of the door body. The door has the advantages of being firm in structure, tight in sealing, reliable in supporting, accurate in opening and closing position and capable of effectively preventing the door body from drooping due to stress. In addition, the door body is only matched with the material gathering door frame and is separated from the barrel body, so that the processing and manufacturing cost and difficulty of the barrel body are reduced, the universality and interchangeability of the discharging door device are greatly improved, and batch production is facilitated.

Description

Technical Field

[0001] This utility model relates to a novel integrated unloading gate device, belonging to the field of mixer technology, and is mainly used for unloading in vertical shaft mixers. Background Technology

[0002] A vertical shaft mixer is a type of construction machinery mainly used for mixing building materials such as cement, sand, gravel, and various dry mortars.

[0003] Currently, the discharge gate devices of traditional vertical shaft mixers on the market mostly use bolts or welding to fix the gate support to the mixing drum. This requires repeated adjustments during installation to achieve flexible opening and closing and uniform gaps, resulting in low production efficiency and high costs. Furthermore, the discharge gates have poor interchangeability, making them unsuitable for mass production and after-sales maintenance. Additionally, traditional discharge gates are often cantilevered structures with insufficient support at the bottom. Under certain material conditions or when the discharge gate is subjected to downward pressure or impact, the gate is prone to sagging and deformation, or bearing damage. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, this utility model provides a novel integrated unloading gate device. The technical solution of this utility model is as follows:

[0005] A novel integrated unloading gate device includes a cylinder. The device is characterized by a material-gathering gate frame installed at the unloading port at the bottom of the cylinder. A gate frame bushing is installed at the front of the material-gathering gate frame, and a bearing is installed inside the gate frame bushing. A gate shaft is rotatably mounted on the gate frame bushing via the bearing. A gate body is installed on the gate shaft. The gate body is driven by an opening and closing unit to open or close the unloading port. A sensor plate is provided at the top of the gate body. The sensor plate cooperates with a sensor switch located on the outside of the cylinder to limit the opening and closing position of the gate body. The opening and closing unit and the sensor switch are both connected to a control panel.

[0006] A protective cover is also installed on the upper part of the inductive switch.

[0007] The opening and closing unit includes a hydraulic cylinder, a hinge seat, and a hinge shaft.

[0008] A hinge seat is installed on the material gathering door frame, and a hinge shaft is installed on the door body. The cylinder body of the hydraulic cylinder is hinged to the hinge seat, and the front end of the hydraulic cylinder extension rod is hinged to the hinge shaft.

[0009] The opening and closing unit includes a cylinder, a hinge seat, and a hinge shaft. The hinge seat is installed on the material gathering door frame, and the hinge shaft is installed on the door body. The cylinder body is hinged to the hinge seat, and the front end of the cylinder extension rod is hinged to the hinge shaft.

[0010] The material gathering gate frame is generally arranged in a fan shape. The gate frame bushing is located at the center of the fan shape of the material gathering gate frame. A bearing cover is installed at the bottom of the gate frame bushing, and a sealing cover is installed at the top. A grease nipple communicating with the inside of the gate frame bushing is provided on the side near the lower part of the gate frame bushing, and an air plug communicating with the inside of the gate frame bushing is provided on the side near the upper part of the gate frame bushing.

[0011] A baffle plate is also installed on the outside of the front part of the material gathering gate frame.

[0012] Several strip-shaped holes are provided on the upper inner side of the material collection door frame, with a gap between adjacent strip-shaped holes. A bottom sealing strip is installed in the strip-shaped holes. The bottom sealing strip cooperates with the bottom surface of the door body to seal the bottom surface of the door body and support the door body to prevent the door body from sagging under force.

[0013] A cylinder side sealing strip is provided on the side of the cylinder body, and a door side sealing strip corresponding to the cylinder side sealing strip is also provided on the upper part of the door body for sealing the side of the door body.

[0014] The advantages of this invention are: robust structure, tight sealing, reliable support, and accurate opening and closing position, effectively preventing the door from sagging under stress. Furthermore, the door only mates with the material-gathering frame and can be completely separated from the cylinder, reducing the manufacturing cost and difficulty of the cylinder and significantly improving the versatility and interchangeability of the unloading door device, facilitating mass production. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a novel integrated unloading gate device structure according to this embodiment.

[0016] Figure 2 yes Figure 1 BB cross-sectional view.

[0017] Figure 3 yes Figure 1 A-direction view.

[0018] Figure 4 for Figure 1 A schematic diagram of the structure of the central material gantry frame.

[0019] Figure 5 yes Figure 4 Top view.

[0020] Figure 6 yes Figure 1 A schematic diagram of the structure of the central gate.

[0021] Figure 7 yes Figure 6 Side view. Detailed Implementation

[0022] The present invention will be further described below with reference to specific embodiments, and the advantages and features of the present invention will become clearer as a result of the description. However, these embodiments are merely exemplary and do not constitute any limitation on the scope of the present invention. Those skilled in the art should understand that modifications or substitutions can be made to the details and form of the technical solution of the present invention without departing from the spirit and scope of the present invention, but all such modifications and substitutions fall within the protection scope of the present invention.

[0023] See Figures 1 to 7 This utility model relates to a novel integrated unloading gate device, including a cylinder 1. A material gathering gate frame 2 is installed at the unloading port at the bottom of the cylinder 1. A gate frame bushing 10 is installed at the front of the material gathering gate frame 2. A bearing 3 is installed inside the gate frame bushing 10. A door shaft 4 is rotatably mounted on the door frame bushing via the bearing 3. A door body 5 is installed on the door shaft 4. The door body 5 is driven by an opening and closing unit to open or close the unloading port. A sensor plate 7 is provided on the top of the door body 5. The sensor plate 7 cooperates with a sensor switch 8 located on the outside of the cylinder to limit the opening and closing position of the door body 5. The opening and closing unit and the sensor switch 8 are both connected to a control panel.

[0024] A protective cover 9 is also installed on the upper part of the inductive switch 8.

[0025] Based on the above structural design, this utility model achieves the following advantages:

[0026] This unloading gate device integrates multiple functional components, including a gate switch and limit device (sensor plate and sensor switch), a gate sealing device (sealing strip), a gate support device (bearings and gate hinges), and a material collection port (material collection gate frame). This integrated design reduces the number of parts, simplifies the structure, and improves overall performance.

[0027] The various functional components work together to achieve functions such as opening and closing control, sealing, and support of the unloading gate, ensuring that the device can operate stably under various working conditions.

[0028] The sensor plate works in conjunction with the sensor switch: A sensor plate is installed at the top of the door. The sensor plate works in conjunction with the sensor switch on the outside of the cylinder to accurately determine the opening and closing position of the door.

[0029] Integrated control panel: The opening and closing unit and the sensor switch are all connected to the control panel, which allows for convenient control of the opening and closing of the unloading gate, improving the accuracy and automation of operation.

[0030] Separable design from the cylinder: The door support and door body only cooperate with the material gathering door frame and can be completely separated from the cylinder body, which reduces the processing and manufacturing cost and difficulty of the cylinder body.

[0031] Suitable for various working conditions: This device is suitable for unloading vertical shaft mixers and can meet the mixing and unloading needs of various building materials.

[0032] The novel integrated unloading gate device of this utility model has significant advantages in terms of structural design, sealing performance, reliability, ease of operation, cost control and versatility. It can effectively improve the unloading efficiency and reliability of vertical shaft mixers, and reduce production costs and maintenance difficulty.

[0033] The first embodiment of the opening and closing unit includes a hydraulic cylinder, a hinge seat 15, and a hinge shaft 16. The hinge seat 15 is installed on the material gathering door frame 2, and the hinge shaft is installed on the door body 5. The cylinder body of the hydraulic cylinder is hinged to the hinge seat 15, and the front end of the hydraulic cylinder extension rod is hinged to the hinge shaft.

[0034] The second embodiment of the opening and closing unit includes a cylinder, a hinge seat 15, and a hinge shaft 16. The hinge seat 15 is installed on the material gathering door frame 2, and the hinge shaft is installed on the door body 5. The cylinder body is hinged to the hinge seat 15, and the front end of the cylinder extension rod is hinged to the hinge shaft.

[0035] The design of this opening and closing unit achieves the following advantages:

[0036] Multiple drive options: The opening and closing unit can be powered by either a hydraulic cylinder or a pneumatic cylinder, depending on the actual working conditions and requirements. Hydraulic cylinders are suitable for applications requiring greater driving force and stability, while pneumatic cylinders are suitable for applications with higher requirements for speed and response time.

[0037] Adaptable to various working conditions: This design enables the unloading gate device to adapt to different working environments and material characteristics. Whether it is heavy or light material, efficient unloading can be achieved by selecting the appropriate drive method.

[0038] Simplified mechanical structure: Using hydraulic cylinders or pneumatic cylinders as driving elements results in a simple structure, reduces complex mechanical transmission components, and lowers the failure rate.

[0039] High reliability: Both hydraulic cylinders and pneumatic cylinders are mature industrial components with high reliability and durability, enabling them to operate stably for extended periods.

[0040] Stable power output: The hydraulic cylinder and air cylinder can provide stable power output, ensuring smooth operation of the door during opening and closing.

[0041] Compact structural design: The installation method of the hydraulic cylinder or air cylinder is compact, occupies little space, and will not affect the overall structure of the mixer.

[0042] Easy installation: Quick installation is achieved through the hinge base and hinge shaft. The installation process is simple and facilitates on-site debugging and maintenance.

[0043] The structure using hydraulic cylinders or pneumatic cylinders as the opening and closing unit has the advantages of flexible driving method, simple structure, high reliability, precise control, stable power transmission, easy maintenance, small space occupation and high safety, which can effectively improve the performance and service life of the unloading gate device.

[0044] The material gathering door frame 2 is generally arranged in a fan shape. The door frame bushing 10 is located at the center of the fan shape of the material gathering door frame. A bearing cover 11 is installed at the bottom of the door frame bushing 10, and a sealing cover 12 is installed at the top. A grease nipple 13 communicating with the inside of the door frame bushing 10 is provided on the side near the lower part of the door frame bushing 10, and a vent plug 14 communicating with the inside of the door frame bushing 10 is provided on the side near the upper part of the door frame bushing 10.

[0045] The material collection gate frame is fan-shaped, which allows the unloading gate device to better adapt to the circular unloading port of the vertical shaft mixer, ensuring a smoother and more efficient unloading process.

[0046] Reasonable bushing position: The door frame bushing is located at the center of the fan-shaped circle. This layout makes the rotation of the door hinge more stable, reduces offset and vibration during the rotation process, and improves the reliability of the device.

[0047] Sealing cover and bearing cover: The top of the door frame bushing is equipped with a sealing cover and the bottom is equipped with a bearing cover. This double sealing design effectively prevents dust and impurities from entering the bushing, extends the service life of the bearing, and ensures the long-term stable operation of the device.

[0048] Vent plug design: The vent plug can balance the air pressure inside and outside the bushing, prevent seal failure caused by air pressure difference, and further enhance the sealing performance.

[0049] Grease nipple design: A grease nipple is provided on one side near the lower part of the door frame bushing, which communicates with the inside of the bushing. This allows for regular grease addition, ensuring the lubrication effect of the bearing, reducing wear, and extending its service life.

[0050] Vent plug design: Vent plugs not only help balance air pressure, but also prevent moisture and impurities from entering the bushing, reducing the risk of corrosion and rust, and further improving the durability of the device.

[0051] Through the integrated design of a sealed cover, bearing cover, grease nipple, and vent plug, the bearing is fully protected, reducing failures caused by insufficient lubrication, impurities, and air pressure differences, and improving the reliability of the device.

[0052] The material collection gate frame and its related structural design have advantages such as compact structure, superior sealing performance, convenient maintenance, long service life, high reliability, strong adaptability, and improved overall performance. These advantages enable this new integrated unloading gate device to perform excellently in the unloading process of the vertical shaft mixer, effectively improving production efficiency and equipment reliability while reducing maintenance costs.

[0053] A baffle plate 17 is also installed on the outside of the front part of the material collection gate frame 2.

[0054] Several strip-shaped holes 18 are provided on the upper inner side of the material collection door frame 2, with a gap between adjacent strip-shaped holes 18. A bottom sealing strip 19 is installed in the strip-shaped holes 18. The bottom sealing strip 19 cooperates with the bottom surface of the door body 5 to seal the bottom surface of the door body 5 and support the door body 5 to prevent the door body 5 from sagging under force.

[0055] A cylinder side sealing strip 20 is provided on the side of the cylinder 1, and a door side sealing strip 21 corresponding to the cylinder side sealing strip 20 is also provided on the upper part of the door body for sealing the side of the door body.

[0056] This utility model achieves multi-layer sealing and support functions for the unloading gate device by setting sealing strips on the material gathering gate frame and the cylinder, and has the following significant advantages:

[0057] Multi-layer sealing design: A three-layer sealing structure is formed by setting a bottom sealing strip 19 at the bottom of the door body, and setting cylinder side sealing strips 20 and door side sealing strips 21 on the sides and top of the door body, respectively. This multi-layer sealing design can effectively prevent material leakage from the bottom and sides of the door body during the unloading process, ensuring the sealing of the unloading process.

[0058] The sealing strip fits tightly with the door: the bottom sealing strip fits tightly with the bottom surface of the door, and the sealing strip on the cylinder side corresponds to the sealing strip on the door side, ensuring that the sealing strip can fit tightly when the door is closed, further improving the sealing effect.

[0059] The supporting function of the bottom sealing strip: The bottom sealing strip not only serves a sealing purpose but also provides support. When the door is closed, the bottom sealing strip supports the door, preventing it from sagging or deforming due to stress. This design effectively solves the sagging problem caused by the lack of bottom support in traditional unloading doors, extending the door's service life.

[0060] Enhanced structural stability: The bottom sealing strip provides support, making the door more stable during opening and closing, reducing vibration and impact caused by door sagging, and improving the overall structural stability of the unloading door device.

[0061] Reduce material leakage: The multi-layer sealing design effectively reduces material leakage during the unloading process, improves unloading efficiency, and avoids material waste and increased cleaning costs caused by leakage.

[0062] Ensuring a smooth unloading process: A stable gate structure and good sealing performance ensure a smoother unloading process, reducing unloading interruptions or malfunctions caused by gate sagging or poor sealing, and improving equipment reliability.

[0063] Extend the service life of sealing strips: Reasonable sealing strip design and installation method make the sealing strip less prone to damage during use, reducing the frequency of replacement and reducing maintenance costs.

[0064] Reduce equipment wear: The bottom sealing strip reduces direct contact and friction between the door and the cylinder, thus reducing equipment wear and extending the equipment's service life.

[0065] This sealing structure, through its multi-layered sealing design and the supporting function of the bottom sealing strip, significantly improves the sealing performance and structural stability of the unloading gate device, effectively preventing gate sagging, increasing unloading efficiency and equipment reliability, reducing maintenance costs, and exhibiting high versatility and adaptability. This design provides a more efficient and reliable solution for the unloading process of vertical shaft mixers.

[0066] This novel integrated unloading gate device is mainly used in the unloading process of vertical shaft mixers. Through the integration of multiple functional components and optimized structural design, it achieves efficient and reliable unloading operation. The following is a detailed explanation of its working principle:

[0067] 1. Driving principle of the start / stop unit

[0068] The opening and closing unit consists of a hydraulic cylinder (or pneumatic cylinder), a hinge seat 15, and a hinge shaft 16. The cylinder body of the hydraulic cylinder (or pneumatic cylinder) is mounted on the material gathering door frame 2 via the hinge seat 15, and the front end of its telescopic rod is connected to the door body 5 via the hinge shaft 16.

[0069] Driving process:

[0070] When the unloading door needs to be opened, the control panel sends a signal, and the extension rod of the hydraulic cylinder (or air cylinder) extends outward, pushing the door body 5 to rotate around the door hinge 4, so that the door body moves from the closed position to the open position.

[0071] When the unloading gate needs to be closed, the control panel sends a signal, and the extension rod of the hydraulic cylinder (or pneumatic cylinder) retracts inward, pulling the gate body 5 to rotate in the opposite direction around the gate pivot 4, so that the gate body returns from the open position to the closed position.

[0072] Advantages: The hydraulic cylinder (or pneumatic cylinder) provides stable power output, ensuring smooth and reliable opening and closing of the gate. Integrated control via the control panel allows operators to easily control the opening and closing of the unloading gate, improving ease of operation and automation.

[0073] 2. Limiting principle of door opening and closing positions

[0074] The sensor plate works in conjunction with the sensor switch: A sensor plate 7 is installed on the top of the door body 5, and the sensor plate works in conjunction with the sensor switch 8 on the outside of the cylinder. The sensor switch 8 is installed on the outside of the cylinder and is used to detect the open / closed position of the door body.

[0075] Limiting process:

[0076] When the door 5 opens or closes to the predetermined position, the sensor plate 7 triggers the sensor switch 8, which sends a signal back to the control panel. The control panel then stops the operation of the hydraulic cylinder (or pneumatic cylinder) based on the feedback signal, ensuring that the door stops accurately at the predetermined position.

[0077] Advantages: The combination of the sensor panel and the sensor switch enables precise control of the door's opening and closing position, improving the accuracy and reliability of the unloading door operation.

[0078] 3. Realization of sealing and support functions

[0079] Multi-layer sealing design:

[0080] Bottom sealing strip: Several strip-shaped holes 18 are provided on the upper inner side of the material gathering door frame 2, and bottom sealing strips 19 are installed in the strip-shaped holes. The bottom sealing strip fits tightly with the bottom surface of the door body 5 to seal the bottom surface of the door body and prevent material leakage.

[0081] Side sealing strips: A cylinder side sealing strip 20 is installed on the side of the cylinder 1, and a door side sealing strip 21 corresponding to the cylinder side sealing strip is installed on the upper part of the door. The side sealing strips are used to seal the sides of the door to further prevent material leakage.

[0082] Support function: The bottom sealing strip 19 not only serves a sealing purpose but also provides support. When the door is closed, the bottom sealing strip supports the door and prevents it from sagging or deforming due to stress.

[0083] Advantages: The multi-layer sealing design effectively prevents material leakage, improves unloading efficiency, and reduces material waste and cleaning costs. The support function of the bottom sealing strip effectively solves the sagging problem caused by the lack of bottom support in traditional unloading gates, extends the service life of the gate body, and improves the structural stability of the entire unloading gate device.

[0084] 4. Structural advantages of the material gathering frame

[0085] Fan-shaped design: The material collection gate frame 2 is arranged in a fan shape, with the gate frame bushing 10 located at the center of the fan. This design allows the unloading gate device to better adapt to the circular unloading port of the vertical shaft mixer, ensuring a smoother and more efficient unloading process.

[0086] Sealing and lubrication design:

[0087] Sealing cover and bearing cover: The top of the door frame bushing 10 is equipped with a sealing cover 12 and the bottom is equipped with a bearing cover 11. The double sealing design effectively prevents dust and impurities from entering the bushing and extends the service life of the bearing.

[0088] Grease nipple and vent plug: A grease nipple (13) is provided at the lower part of the door frame bushing 10 for periodically adding grease to ensure the lubrication effect of the bearing and reduce wear. A vent plug 14 is provided at the upper part of the door frame bushing (10) to balance the air pressure inside and outside the bushing and prevent sealing failure caused by air pressure difference.

[0089] Through the integrated design of a sealed cover, bearing cover, grease nipple, and vent plug, the bearing is fully protected, reducing failures caused by insufficient lubrication, impurity entry, and air pressure difference, thus improving the reliability and service life of the device.

[0090] 5. The function of the baffle plate

[0091] Material baffle: A material baffle 17 is installed on the outside of the front part of the material collection gate frame 2 to prevent material from splashing or leaking during the unloading process. The material baffle further enhances the sealing and reliability of the unloading process and reduces material waste and cleaning costs.

[0092] The specific activation process is as follows:

[0093] The control panel sends an open signal, and the extension rod of the hydraulic cylinder (or pneumatic cylinder) extends outward, pushing the door to rotate around the door hinge, and the door gradually opens.

[0094] When the door opens to the predetermined position, the sensor panel triggers the sensor switch, and the control panel stops the action of the hydraulic cylinder (or pneumatic cylinder), keeping the door in the open position.

[0095] The specific shutdown process is as follows:

[0096] When the control panel sends a shutdown signal, the extension rod of the hydraulic cylinder (or pneumatic cylinder) retracts inward, pulling the door body to rotate in the opposite direction around the door hinge, and the door body gradually closes.

[0097] When the door closes to the predetermined position, the sensor panel triggers the sensor switch, and the control panel stops the action of the hydraulic cylinder (or pneumatic cylinder), keeping the door in the closed position.

[0098] Sealing and support:

[0099] When the door is closed, the bottom sealing strip fits tightly with the bottom surface of the door, and the side sealing strip fits tightly with the side of the cylinder, forming a multi-layer sealing structure to prevent material leakage.

[0100] The bottom sealing strip also supports the door body, preventing it from sagging and deforming due to stress, and ensuring the structural stability of the door body.

[0101] Regularly add grease through the grease fitting to ensure proper lubrication of the bearing and reduce wear.

[0102] The vent plug balances the air pressure inside and outside the bushing, preventing seal failure due to air pressure difference and further enhancing sealing performance.

[0103] This novel integrated unloading gate device achieves efficient and reliable unloading operations by integrating multiple functional components and optimizing structural design. It not only improves unloading efficiency and equipment reliability but also reduces maintenance costs, exhibiting high versatility and adaptability, and providing a more efficient and reliable solution for the unloading process of vertical shaft mixers.

[0104] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A new type of integral unloading gate device comprising a cylinder (1), characterized in that, A material gathering door frame (2) is installed at the discharge port at the bottom of the cylinder (1). A door frame bushing (10) is installed at the front of the material gathering door frame (2). A bearing (3) is installed inside the door frame bushing (10). A door shaft (4) is rotatably mounted on the door frame bushing through the bearing (3). A door body (5) is installed on the door shaft (4). The door body (5) is opened or closed by the opening and closing unit. A sensor plate (7) is provided on the top of the door body (5). The sensor plate (7) cooperates with the sensor switch (8) located on the outside of the cylinder to limit the opening and closing position of the door body (5). The opening and closing unit and the sensor switch (8) are both connected to the control panel.

2. The new and improved integral dump gate assembly of claim 1, wherein, A protective cover (9) is also installed on the upper part of the inductive switch (8).

3. The new and improved integral dump gate assembly of claim 2, wherein, The opening and closing unit includes a hydraulic cylinder, a hinge seat (15), and a hinge shaft (16). A hinge seat (15) is installed on the material gathering door frame (2), and a hinge shaft is installed on the door body (5). The cylinder body of the oil cylinder is hinged to the hinge seat (15), and the front end of the oil cylinder telescopic rod is hinged to the hinge shaft.

4. The new and improved integral dump gate assembly of claim 2 wherein, The opening and closing unit includes a cylinder, a hinge seat (15), and a hinge shaft (16). A hinge seat (15) is installed on the material gathering door frame (2), and a hinge shaft is installed on the door body (5). The cylinder body is hinged to the hinge seat (15), and the front end of the cylinder extension rod is hinged to the hinge shaft.

5. The new monolithic door device according to claim 3 or 4, characterized in that The material gathering door frame (2) is arranged in a fan shape. The door frame bushing (10) is located at the center of the fan shape of the material gathering door frame. A bearing cover (11) is installed at the bottom of the door frame bushing (10), and a sealing cover (12) is installed at the top. A grease nipple (13) communicating with the inside of the door frame bushing (10) is provided on one side near the lower part of the door frame bushing (10), and a vent plug (14) communicating with the inside of the door frame bushing (10) is provided on one side near the upper part of the door frame bushing (10).

6. The novel integrated unloading gate device according to claim 5, characterized in that, A baffle plate (17) is also installed on the outside of the front part of the material collection gate frame (2).

7. The new and improved integral dump gate assembly of claim 6 wherein, Several strip holes (18) are provided on the upper inner side of the material collection door frame (2), and a gap is formed between adjacent strip holes (18). A bottom sealing strip (19) is installed in the strip hole (18). The bottom sealing strip (19) cooperates with the bottom surface of the door body (5) to seal the bottom surface of the door body (5) and support the door body (5) to prevent the door body (5) from sagging under force.

8. The new and improved integral dump gate assembly of claim 7 wherein, A cylinder side sealing strip (20) is provided on the side of the cylinder (1), and a door side sealing strip (21) corresponding to the cylinder side sealing strip (20) is also provided on the upper part of the door body for sealing the side of the door body.

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