A material jamming unloading gate device

Abstract

This utility model belongs to the technical field of concrete mixing equipment and discloses an anti-jamming unloading gate device, including a concrete mixer body. The concrete mixer body includes a hopper and a discharge port opened at the bottom of the hopper. A first mounting frame is fixedly connected to the bottom of the discharge port, and a second mounting frame is fixedly connected to the bottom of the first mounting frame. A movable plate is slidably connected to the second mounting frame, and a push plate is fixedly connected to the movable plate. This utility model sets up two independent drive components, electric drive and manual drive, and selects the connection through a locking component. When the electric push rod cannot work due to failure or power failure, it can be quickly disconnected and switched to manual screw drive mode, so that the operator can still open and close the unloading gate in a very short time, effectively avoiding the problem of concrete solidifying inside the equipment due to prolonged retention.

Description

Technical Field

[0001] This utility model relates to the technical field of concrete mixing equipment, and more specifically, to an anti-jamming unloading gate device. Background Technology

[0002] As the core machinery of construction projects, the reliability of the discharge gate device of concrete mixing equipment directly affects the construction efficiency and quality. Traditional discharge gates usually use a linear translation structure driven by electric push rods to control the opening and closing of the discharge port. Specifically, the electric push rod directly drives the discharge plate to slide horizontally, while a scraper and other cleaning mechanism are used to prevent material jamming. This design can achieve efficient and automated operation when the power supply is stable and the machinery is fault-free, and has become the current mainstream technical solution.

[0003] However, in actual engineering applications, when power outages or burnout of the push rod motor render the electric push rod unusable, the unloading gate will completely lose its opening and closing ability. Since concrete has the characteristic of rapid solidification, if the failure occurs during unloading or when the gate is closed, the equipment needs to be stopped for maintenance, causing the concrete remaining in the mixing tank to harden rapidly and form an irreversible solidified body. At this time, not only will a lot of manpower be required to clean the solidified material, but it will also cause a chain of losses such as construction interruption and material scrapping, which has become a long-standing technical blind spot in the industry.

[0004] In view of this, we propose an anti-jamming unloading gate device. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] The purpose of this utility model is to provide an anti-jamming unloading gate device to solve the problem mentioned in the background art of concrete unloading gate jamming due to electric push rod failure or power failure, which causes concrete to stagnate and solidify.

[0007] 2. Technical Solution

[0008] A material jamming unloading gate device includes a concrete mixer body, the concrete mixer body includes a hopper and a discharge port opened at the bottom of the hopper, a first mounting frame is fixedly connected to the bottom of the discharge port, a second mounting frame is fixedly connected to the bottom of the first mounting frame, a movable plate is slidably connected to the second mounting frame, a push plate is fixedly connected to the movable plate, and a discharge plate for controlling the opening and closing of the discharge port is fixedly connected to the push plate. A first drive assembly, a second drive assembly and a locking assembly are provided on the second mounting frame.

[0009] A first drive assembly includes an electric push rod for driving a movable plate and a first connecting plate rotatably connected to the extended end of the electric push rod for connecting to the movable plate. The first drive assembly is used to detachably connect to the movable plate to drive the unloading plate to move.

[0010] The second drive assembly includes a screw rotatably connected to a second mounting frame and a threaded sleeve threaded to the screw, wherein a second connecting plate for connecting to a movable plate is rotatably connected to the threaded sleeve, and the second drive assembly is used to detachably connect to the movable plate to drive the unloading plate to move.

[0011] A locking assembly for locking and securing the movable plate to the first drive assembly or the second drive assembly.

[0012] Preferably, a plurality of cleaning blades are fixedly connected to the first mounting frame, the bottom of the cleaning blades being at the same height as the top of the unloading plate, and a baffle plate is fixedly connected to the second mounting frame. The cleaning blades are used to remove material from the unloading plate to prevent the unloading plate from jamming.

[0013] Preferably, the locking assembly includes a channel formed in the movable plate and a locking rod elastically connected to the movable plate by a spring. The locking rod passes through the channel, and the first connecting plate and the second connecting plate are respectively provided with a first locking groove and a second locking groove adapted to the size of the locking rod.

[0014] Preferably, a rotating rod is fixedly connected to the extended end of the electric push rod, and the rotating rod is rotatably connected to the first connecting plate.

[0015] Preferably, the screw sleeve is threadedly connected to the screw via a ball screw pair, and a swivel ring with a T-shaped cross-section is fixedly connected to the screw sleeve. The second connecting plate has a rotating groove that matches the size of the swivel ring, and the rotating groove is used to rotatably connect the screw sleeve and the second connecting plate.

[0016] Preferably, one end of the screw is rotatably connected to the second mounting frame, and the other end of the screw is rotatably connected to the baffle plate. A handle is fixedly connected to the end of the screw near the second mounting frame, and the handle is used to drive the screw to rotate.

[0017] Preferably, two connecting rods are fixedly connected between the movable plate and the push plate, and sliders are fixedly connected to both sides of the push plate and the movable plate. A sliding groove adapted to the size of the slider is opened in the second mounting frame, and the sliding groove is located on the side of the baffle plate away from the discharge port.

[0018] 3. Beneficial effects

[0019] Compared with existing technologies, the advantages of this utility model are:

[0020] 1. This utility model is equipped with two independent drive components, electric drive and manual drive, and they are connected by a locking component. When the electric push rod fails to work due to malfunction or power failure, it can be quickly disconnected and switched to manual screw drive mode. This allows the operator to open and close the unloading door in a very short time, effectively avoiding the problem of concrete solidifying inside the equipment due to prolonged retention.

[0021] 2. The second drive component of this utility model adopts a screw drive with a precise rotating connection structure, which not only provides reliable power transmission, but also has labor-saving operation characteristics. At the same time, it is designed with a special cleaning knife, whose blade is precisely set on the movement path of the unloading plate. It can automatically scrape off the material adhering to the unloading plate during the opening and closing of the unloading gate, effectively preventing the jamming phenomenon caused by material accumulation, and ensuring smooth and reliable manual and electric operation.

[0022] 3. The movable plate and push plate of this utility model move stably in the precision-machined groove through the sliders on both sides, ensuring that the unloading plate always moves in a straight line along the predetermined trajectory without deviation or jamming. The connection point between the movable plate and the drive component adopts a rotation design that is easy to switch, and the baffle plate is tightly connected to the mounting frame. This overall structural design ensures that the unloading gate can be opened and closed flexibly while maintaining good airtightness, preventing material leakage from entering the transmission components, and ensuring the long-term durability and maintenance-free requirements of the mechanism. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a split view of the first mounting frame and the second mounting frame of this utility model;

[0025] Figure 3 This is an exploded view of the first driving component and the second mounting frame of this utility model;

[0026] Figure 4 This is a split view of the locking component and the first driving component of this utility model;

[0027] Figure 5 This is an exploded view of the second connecting plate and the screw sleeve of this utility model;

[0028] Figure 6 This is a cross-sectional schematic diagram of the second connecting plate and the rotating ring of this utility model.

[0029] The following are the labels in the diagram: 1. Concrete mixer body; 11. Hopper; 12. Discharge port; 13. First mounting frame; 14. Second mounting frame; 15. Movable plate; 16. Connecting rod; 17. Push plate; 18. Discharge plate; 19. Cleaning knife; 110. Sliding block; 111. Slide groove; 112. Baffle plate; 2. First drive assembly; 21. Electric push rod; 22. Rotating rod; 23. First connecting plate; 24. First locking groove; 3. Second drive assembly; 31. Screw; 32. Handle; 33. Screw sleeve; 34. Second connecting plate; 35. Second locking groove; 36. Rotating ring; 37. Rotating groove; 4. Locking assembly; 41. Channel; 42. Locking rod; 43. Spring. Detailed Implementation

[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] Please see Figure 1-6 This utility model provides a technical solution:

[0033] A material jamming unloading gate device includes a concrete mixer body 1. The concrete mixer body 1 includes a hopper 11 and a discharge port 12 opened at the bottom of the hopper 11. A first mounting frame 13 is fixedly connected to the bottom of the discharge port 12, and a second mounting frame 14 is fixedly connected to the bottom of the first mounting frame 13. A movable plate 15 is slidably connected to the second mounting frame 14, and a push plate 17 is fixedly connected to the movable plate 15. A discharge plate 18 for controlling the opening and closing of the discharge port 12 is fixedly connected to the push plate 17. A first drive assembly 2, a second drive assembly 3, and a locking assembly 4 are provided on the second mounting frame 14. The first drive assembly 2 includes an electric push rod 21 for driving the movable plate 15 and a first connecting plate 23 rotatably connected to the extended end of the electric push rod 21 for connecting with the movable plate 15. The first drive assembly 2 is detachably connected to the movable plate 15. The first drive assembly 13 is connected to the second mounting frame 14 to drive the unloading plate 18 to move; the second drive assembly 3 includes a screw 31 rotatably connected to the second mounting frame 14 and a screw sleeve 33 threadedly connected to the screw 31. A second connecting plate 34 for connecting to the movable plate 15 is rotatably connected to the screw sleeve 33. The second drive assembly 3 is used to detachably connect to the movable plate 15 to drive the unloading plate 18 to move; the locking assembly 4 is used to lock and fix the movable plate 15 to the first drive assembly 2 or the second drive assembly 3. This arrangement allows the first mounting frame 13 to provide a sealing plane to ensure the tight closure of the unloading plate 18, while the design of the second mounting frame 14 can resist the impact of concrete and avoid the problem of track offset jamming caused by frame deformation after long-term use. In addition, in the specific arrangement, the first drive assembly 2 is located above the mounting frame and the second drive assembly 3 is located below the mounting frame.

[0034] Specifically, a plurality of cleaning blades 19 are fixedly connected to the first mounting frame 13. The bottom of the cleaning blades 19 is at the same height as the top of the unloading plate 18. A baffle plate 112 is fixedly connected to the second mounting frame 14. The cleaning blades 19 are used to remove material from the unloading plate 18 to prevent material from getting stuck. In practice, the cutting edge of the cleaning blades 19 can be made using a hard alloy welding process to form a continuous shearing action when the unloading plate 18 moves back and forth. On the one hand, it scrapes off the concrete slurry adhering to the surface of the unloading plate 18, and on the other hand, it forcibly peels off the particles accumulated at the intersection of the tracks. This active obstacle removal mechanism is continuously effective in both electric and manual modes, eliminating the possibility of material getting stuck in the gap of the moving pair from the source, and ensuring that the drive system still maintains reliable operation in emergency conditions.

[0035] Secondly, the locking assembly 4 includes a channel 41 opened on the movable plate 15 and a locking rod 42 elastically connected to the movable plate 15 by a spring 43. The locking rod 42 is set through the channel 41. The first connecting plate 23 and the second connecting plate 34 are respectively provided with a first locking groove 24 and a second locking groove 35 that are adapted to the size of the locking rod 42. It should be noted that when the first connecting plate 23 or the second connecting plate 34 is close to the movable plate 15, the locking rod 42 is pulled out. When the first locking groove 24 or the second locking groove 35 is aligned, the spring 43 is released and the rod is pushed into the groove to complete the self-locking. This design can realize the switching of the drive unit with only one hand and one action. Its mechanical interlocking structure has no risk of accidental disengagement in the vibration environment. The preload of the spring 43 can be adjusted according to the working conditions to ensure that the separation torque is moderate and that there is no relative displacement of the connection under heavy load.

[0036] Furthermore, a rotating rod 22 is fixedly connected to the extended end of the electric push rod 21. The rotating rod 22 is rotatably connected to the first connecting plate 23. It should be noted that, in specific implementation, the rotatable connection between the rotating rod 22 and the first connecting plate 23 should be damped so that when the second drive assembly 3 needs to be switched, the first connecting plate 23 can be flipped upwards and ensured that it does not affect the movement of the movable plate 15.

[0037] In addition, the screw sleeve 33 is threadedly connected to the screw 31 via a ball screw pair. A swivel ring 36 with a T-shaped cross section is fixedly connected to the screw sleeve 33. A rotating groove 37 adapted to the size of the swivel ring 36 is provided on the second connecting plate 34. The rotating groove 37 is used to make the screw sleeve 33 rotatably connected to the second connecting plate 34. This arrangement can prevent the lateral force generated by shaking the handle 32 during manual operation from aggravating the wear of the slide groove 111 and ensuring the service life of the transmission.

[0038] Meanwhile, one end of the screw 31 is rotatably connected to the second mounting frame 14, and the other end of the screw 31 is rotatably connected to the baffle plate 112. A handle 32 is fixedly connected to the end of the screw 31 near the second mounting frame 14. The handle 32 is used to drive the screw 31 to rotate. This arrangement can greatly optimize the space utilization and also ensure that precision components such as the screw 31 are not splashed by falling concrete.

[0039] Furthermore, two connecting rods 16 are fixedly connected between the movable plate 15 and the push plate 17. Slider 110s are fixedly connected to both sides of the push plate 17 and the movable plate 15. A groove 111 adapted to the size of the slider 110 is opened in the second mounting frame 14. The groove 111 is located on the side of the baffle plate 112 away from the discharge port 12. The arrangement of the two connecting rods 16 can keep the push plate 17 and the discharge plate 18 stable, making them more stable when subjected to concrete impact. In addition, the position of the groove 111 relative to the baffle plate 112 can prevent it from being splashed by concrete. In specific implementation, protective covers can be set at the first drive assembly 2 and the second drive assembly 3 to further improve the protective effect.

[0040] Working principle:

[0041] During normal operation, the electric push rod 21 drives the first connecting plate 23 to move horizontally via the rotating rod 22 at its extended end. At this time, the locking rod 42 automatically engages with the locking groove on the first connecting plate 23 under the action of the spring 43, so that the movable plate 15 and the electric push rod 21 form a rigid connection through the first connecting plate 23. The movable plate 15 slides smoothly in the slide groove 111 of the second mounting frame 14, driving the push plate 17 and the unloading plate 18 to open or close the discharge port 12. During this process, the cleaning knife 19 fixed to the first mounting frame 13 continuously scrapes off the adhesive layer on the surface of the unloading plate 18, while the baffle plate 112 forms a sealing barrier to ensure that concrete is discharged only from the predetermined opening. When the electric push rod 21 malfunctions or loses power, the operator... Operators can manually pull the locking rod 42 to disengage it from the first locking groove 24. At this time, the first connecting plate 23 can be folded upward to avoid it. Then, the movable plate 15 is slid to the position of the second connecting plate 34, and the locking rod 42 is released to fall into the second locking groove 35 to complete the manual drive connection. The manual handle 32 is turned to drive the screw 31 to rotate. The linear motion of the screw sleeve 33 is transmitted to the movable plate 15 through the ball screw pair to maintain the opening and closing function of the unloading gate. During this process, the double connecting rod 16 between the push plate 17 and the movable plate 15 enhances the structural rigidity. The closed slide 111 effectively isolates the intrusion of materials. The whole system still maintains reliable anti-jamming characteristics and easy operation in emergency mode, solving the problem of concrete retention and solidification when the electric push rod 21 is damaged.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A material jamming unloading gate device, comprising a concrete mixer body (1), characterized in that: The concrete mixer body (1) includes a hopper (11) and a discharge port (12) opened at the bottom of the hopper (11). A first mounting frame (13) is fixedly connected to the bottom of the discharge port (12). A second mounting frame (14) is fixedly connected to the bottom of the first mounting frame (13). A movable plate (15) is slidably connected to the second mounting frame (14). A push plate (17) is fixedly connected to the movable plate (15). A discharge plate (18) for controlling the opening and closing of the discharge port (12) is fixedly connected to the push plate (17). A first drive assembly (2), a second drive assembly (3), and a locking assembly (4) are provided on the second mounting frame (14). The first drive assembly (2) includes an electric push rod (21) for driving the movable plate (15) and a first connecting plate (23) rotatably connected to the extended end of the electric push rod (21) for connecting to the movable plate (15). The first drive assembly (2) is detachably connected to the movable plate (15) to drive the unloading plate (18) to move. The second drive assembly (3) includes a screw (31) rotatably connected to the second mounting frame (14) and a screw sleeve (33) threadedly connected to the screw (31). A second connecting plate (34) for connecting to the movable plate (15) is rotatably connected to the screw sleeve (33). The second drive assembly (3) is used to detachably connect to the movable plate (15) to drive the unloading plate (18) to move. Locking assembly (4) is used to lock and fix the movable plate (15) to the first drive assembly (2) or the second drive assembly (3).

2. The anti-jamming unloading gate device as described in claim 1, characterized in that: Multiple cleaning blades (19) are fixedly connected to the first mounting frame (13). The bottom of the cleaning blades (19) is at the same height as the top of the unloading plate (18). A baffle plate (112) is fixedly connected to the second mounting frame (14). The cleaning blades (19) are used to remove the material on the unloading plate (18) to prevent the unloading plate (18) from jamming.

3. The anti-jamming unloading gate device as described in claim 1, characterized in that: The locking assembly (4) includes a channel (41) opened on the movable plate (15) and a locking rod (42) elastically connected to the movable plate (15) by a spring (43). The locking rod (42) is provided through the channel (41). The first connecting plate (23) and the second connecting plate (34) are respectively provided with a first locking groove (24) and a second locking groove (35) adapted to the size of the locking rod (42).

4. The anti-jamming unloading gate device as described in claim 3, characterized in that: A rotating rod (22) is fixedly connected to the extended end of the electric push rod (21), and the rotating rod (22) is rotatably connected to the first connecting plate (23).

5. The anti-jamming unloading gate device as described in claim 4, characterized in that: The screw sleeve (33) is threadedly connected to the screw (31) via a ball screw pair. A swivel ring (36) with a T-shaped cross section is fixedly connected to the screw sleeve (33). A rotating groove (37) adapted to the size of the swivel ring (36) is provided on the second connecting plate (34). The rotating groove (37) is used to make the screw sleeve (33) and the second connecting plate (34) rotate and connect.

6. The anti-jamming unloading gate device as described in claim 5, characterized in that: One end of the screw (31) is rotatably connected to the second mounting frame (14), and the other end of the screw (31) is rotatably connected to the baffle plate (112). A handle (32) is fixedly connected to one end of the screw (31) near the second mounting frame (14), and the handle (32) is used to drive the screw (31) to rotate.

7. The anti-jamming unloading gate device as described in claim 6, characterized in that: Two connecting rods (16) are fixedly connected between the movable plate (15) and the push plate (17). Sliders (110) are fixedly connected to both sides of the push plate (17) and the movable plate (15). A slide groove (111) adapted to the size of the slide groove (110) is opened in the second mounting frame (14). The slide groove (111) is located on the side of the baffle plate (112) away from the discharge port (12).

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