Upper cover linkage device of feed hopper of concrete mixing truck

Abstract

A feeding hopper and an upper cover linkage device of a concrete mixing truck are characterized in that a feeding hopper is arranged at the top of a tank body of the concrete mixing truck, a transverse slide way is fixed on one side of the outer wall of the feeding hopper, and a cover plate matched with a material opening of the feeding hopper in shape is connected to the slide way in a sliding mode; a rotating sleeve is fixed to an upper mounting frame of the concrete mixing truck and rotationally connected with the lower side of the swing frame, and the end, away from the sliding way, of the cover plate is rotationally connected with the upper side of the swing frame. A driving mechanism for driving the swing frame to rotate so as to push the cover plate to be separated from or closed with the feeding hopper is mounted on the side surface of the concrete mixing truck; the driving mechanism comprises a rotatable handle assembly arranged on a lower side mounting frame of the concrete mixing truck. According to the feeding hopper upper cover linkage device of the concrete mixing truck, the feeding hopper can be opened and closed on the lower side of the truck, the problem that the concrete quality is affected due to the fact that rainwater is injected into a tank body in a rainy area is solved, and meanwhile the problem that personnel are not safe when climbing up and down is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of concrete mixer trucks, and specifically to a linkage device for the upper cover of the hopper of a concrete mixer truck. Background Art

[0002] The hopper of a concrete mixer truck is a device for introducing concrete from a pump station into the mixing tank for long-distance transportation. Its upper opening is always in an open state during transportation. However, in some tropical regions and southern regions of China, there are often unexpected heavy rain weather. In such cases, rainwater will pour into the tank along the hopper, and after mixing, it will affect the slump and quality of the concrete, and further affect the quality of the building under construction. At the same time, it is very unsafe for personnel to climb up and down when operating the opening and closing of the cover. To solve the above problems, the present invention has developed a linkage mechanism for the upper cover of the hopper and has been applied in the market. Summary of the Invention

[0003] The purpose of the present invention is to provide a linkage device for the upper cover of the hopper of a concrete mixer truck, which can open and close the hopper on the lower side of the mixer truck, solve the problem that the quality of concrete is affected by rainwater injection into the tank in rainy areas, and also solve the problem of the insecurity of personnel climbing up and down.

[0004] The technical solution adopted by the present invention is: a linkage device for the upper cover of the hopper of a concrete mixer truck. A hopper is provided on the top of the tank of the concrete mixer truck. One side of the outer wall of the hopper is fixed with a horizontal slideway, and a cover plate adapted to the shape of the hopper opening is slidably connected to the slideway. A rotating sleeve is fixed on the upper mounting frame of the concrete mixer truck, and the lower side of the rotating sleeve is rotatably connected to the lower side of the swing frame. One end of the cover plate away from the slideway is rotatably connected to the upper side of the swing frame. A driving mechanism is installed on the side of the concrete mixer truck for driving the swing frame to rotate to push the cover plate to separate from or close the hopper. The driving mechanism includes a rotatable handle assembly provided on the lower mounting frame of the concrete mixer truck. The handle assembly and the swing frame are connected by a liftable swing rod assembly, and the rotation of the handle assembly drives the rotation of the swing frame.

[0005] As a preferred solution, the slideway includes two parallel guide rods. Two U-shaped bolts are fixed to the lower side of the same end of the cover plate. The guide rods pass through the chute formed between the U-shaped bolts and the cover plate, and the height of the chute is greater than the outer diameter of the guide rods.

[0006] As a preferred solution, the ends of the two guide rods away from the hopper are connected by a limiting rod for limiting the U-shaped bolts.

[0007] As a preferred solution, a reinforcing support plate is fixed at the included angle between the slideway and the feed hopper.

[0008] As a preferred solution, the handle assembly includes a handle, a pin shaft and a base; The base is fixed on the lower mounting frame of the concrete mixer truck, and the base is rotationally connected to one end of the handle through the pin shaft.

[0009] As a preferred solution, the swing rod assembly includes a swing rod, a swing arm and an ear respectively hinged at both ends of the swing rod. The swing arm is fixedly connected to the swing frame, and the ear is fixedly connected to the handle.

[0010] As a preferred solution, the swing frame is a U-shaped rod, which includes two vertical parts and a horizontal part, and the feed hopper is located between the two vertical parts of the U-shaped rod.

[0011] As a preferred solution, a rotating seat assembly is movably sleeved on the upper side of the swing frame, and the rotating seat assembly is fixed on the cover plate.

[0012] Compared with the prior art, the beneficial effects of the present invention are: The upper cover linkage mechanism of this concrete mixer truck realizes the closing of the upper opening of the feed hopper body by moving the cover plate back and forth. It opens during loading and is in a closed state during transportation, effectively preventing rainwater from entering and damaging the quality of the concrete. At the same time, considering that operating this structure requires personnel to climb up and down and high-altitude operations are very unsafe, it is specially designed that personnel operate the upper linkage cover plate to move back and forth at the lower part to realize the opening and closing of the cover plate, which not only meets the usage requirements but also ensures safe operation. Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0014] Figure 1 It is a schematic side view of the whole of the present invention; Figure 2 It is a schematic top view of the whole of the present invention; Figure 3 It is a schematic rear view of the whole of the present invention; Figure 4 It is Figure 1 The enlarged schematic view of part I in Figure 5 It is Figure 1 The enlarged schematic view of part II in Figure 6 It is Figure 1Enlarged schematic view at position III in the middle.

[0015] Reference numerals: 1, feed hopper; 2, slideway; 201, guide rod; 202, limit rod; 3, reinforcing support plate; 4, cover plate; 5, U-bolt; 6, swing frame; 7, rotating seat assembly; 8, rotating sleeve; 9, swing arm; 10, swing rod; 11, handle; 12, lug; 13, pin shaft; 14, base. Detailed implementation mode

[0016] Next, the present invention will be specifically described through exemplary implementation modes. However, it should be understood that without further description, the elements, structures, and features in one implementation mode can also be beneficially combined into other implementation modes.

[0017] It should be noted that: Unless otherwise defined, the technical terms or scientific terms used herein should have the ordinary meaning understood by those of ordinary skill in the art to which the present invention belongs. The words such as "a", "an", or "the" used in the specification and claims of this patent application for the present invention do not express a limitation of quantity, but mean that there is at least one; the "first", "second", and "third" used herein should not be regarded as a limitation on the order of components, but are only used to distinguish different components; words such as "comprising" or "including" indicate that the elements or objects appearing before "comprising" or "including" cover the elements or objects listed after "comprising" or "including" and their equivalents, but do not exclude other elements or objects having the same function.

[0018] In order to more clearly describe the specific structural composition of the linkage device for the upper cover of the feed hopper of the concrete mixer truck, in combination with the attached Figures 1-6 Describe this embodiment: As Figures 1-6 shown, a linkage device for the upper cover of the feed hopper of a concrete mixer truck. An installation frame is installed on the chassis of the concrete mixer truck, and the tank body is installed on the installation frame. A feed hopper 1 is provided at the top of the tank body. A horizontal slideway 2 is fixed on one side of the outer wall of the feed hopper 1. A cover plate 4 adapted to the shape of the material opening of the feed hopper 1 is slidably connected on the slideway 2; a rotating sleeve 8 is fixed on the upper installation frame on the upper side of the concrete mixer truck. The rotating sleeve 8 is rotatably connected to the lower side of the swing frame 6. One end of the cover plate 4 away from the slideway 2 is rotatably connected to the upper side of the swing frame 6; A driving mechanism for driving the swing frame 6 to rotate to push the cover plate 4 to separate from or close to the feed hopper 1 is installed on the side of the concrete mixer truck; the driving mechanism includes a rotatable handle assembly provided on the lower installation frame of the concrete mixer truck. The handle assembly and the swing frame 6 are connected by a swing rod assembly that can be lifted and lowered, and the rotation of the handle assembly drives the rotation of the swing frame 6.

[0019] When it is necessary to inject material into the tank body through the feed hopper 1, the handle assembly is rotated to drive the rocker arm assembly to descend, thereby driving the swing frame 6 to rotate. The swing frame 6 pushes one end of the cover plate 4 to move in the direction of the slide 2. This end has a certain flipping during the sliding process. One end of the cover plate 4 always slides along the slide 2 until the cover plate 4 moves to the outside of the feed hopper 1, and then injects material into the feed hopper 1; when closing the material port, the handle assembly is rotated to drive the rocker arm assembly to rise, so that the cover plate 4 moves in the opposite direction and resets until the cover plate 4 and the feed hopper 1 are completely closed. During vehicle transportation, the cover plate 4 is in a closed state.

[0020] See also Figure 2 Specifically, the slide 2 includes two parallel guide rods 201, and two U-shaped bolts 5 are fixed to the lower side of the same end of the cover plate 4. The guide rod 201 passes through the slide groove formed between the U-shaped bolt 5 and the cover plate 4. The height of the slide groove is greater than the outer diameter of the guide rod 201. This design allows the U-shaped bolt 5 to be appropriately flipped on the guide rod 201 to ensure the smooth sliding of the cover plate 4; the ends of the two guide rods 201 away from the feed hopper 1 are connected by a limit rod 202 for limiting the U-shaped bolt 5, and the sliding range of the U-shaped bolt 5 is limited to the guide rod 201. When the cover plate 4 is in a completely separated state, the U-shaped bolt 5 is in contact with the limit rod 202, and when the cover plate 4 is in a completely closed state, the U-shaped bolt 5 is in contact with the connecting end of the guide rod 201 and the feed hopper 1.

[0021] See also Figure 4 A reinforcing support plate 3 is fixed at the angle between the slide 2 and the feed hopper 1 to prevent the slide 2 from sinking.

[0022] See also Figure 6 The handle assembly includes a handle 11, a pin 13 and a base 14; the base 14 is fixed to the lower mounting frame of the concrete mixer truck, and the base 14 is rotatably connected to one end of the handle 11 through the pin 13; the swing arm assembly includes a swing arm 10 and a swing arm 9 and a support ear 12 respectively hinged at both ends of the swing arm 10, the swing arm 9 is fixedly connected to the swing frame 6, and the support ear 12 is fixedly connected to the handle 11; For example, in Figures 4-6 In the orientation shown, when the cover 4 is opened, the hand-held handle 11 rotates counterclockwise along the pin 13, the handle 11 is integrated with the support ear 12, the support ear 12 drives the lower end of the swing rod 10 to rotate and descend, the upper end of the swing rod 10 pulls the swing arm 9 and the swing frame 6, so that the swing frame 6 rotates clockwise relative to the rotating sleeve 8, the swing frame 6 drives the left end of the cover 4 to move rightward, the U-bolt 5 at the right end of the cover 4 slides to the right along the guide rod 201, and the left end of the cover 4 is slightly tilted during the sliding opening process; when the cover 4 is closed, the hand-held handle 11 rotates clockwise along the pin 13, and the cover 4 moves to the left to reset.

[0023] See also Figure 2, the swinging frame 6 is a U-shaped rod, which includes two vertical parts and a horizontal part, and the feeding hopper 1 is located between the two vertical parts of the U-shaped rod; A rotating seat assembly 7 is movably sleeved on the upper side of the swinging frame 6, and the rotating seat assembly 7 is fixed on the cover plate 4.

[0024] The parts not detailed in the above embodiments are prior art.

[0025] It should be noted that although the present invention has been described through the above embodiments, the present invention can also have many other embodiments. Without departing from the spirit and scope of the present invention, those skilled in the art can obviously make various corresponding changes and deformations to the present invention, but these changes and deformations should all fall within the scope protected by the appended claims of the present invention and their equivalents.

Claims

1. A linkage device for the upper cover of the hopper of a concrete mixer truck. There is a hopper (1) at the top of the tank body of the concrete mixer truck. It is characterized in that: On one side of the outer wall of the hopper (1), a horizontal slideway (2) is fixed. A cover plate (4) that fits the shape of the hopper opening of the hopper (1) is slidably connected to the slideway (2); A rotating sleeve (8) is fixed on the upper mounting frame of the concrete mixer truck. The rotating sleeve (8) is rotatably connected to the lower side of the swing frame (6). One end of the cover plate (4) away from the slideway (2) is rotatably connected to the upper side of the swing frame (6); A driving mechanism is installed on the side of the concrete mixer truck for driving the swing frame (6) to rotate to push the cover plate (4) to separate from or close the hopper (1); The driving mechanism includes a rotatable handle assembly arranged on the lower mounting frame of the concrete mixer truck. The handle assembly and the swing frame (6) are connected by a swing rod assembly that can be lifted and lowered. The rotation of the handle assembly drives the rotation of the swing frame (6).

2. The linkage device of the upper cover of the hopper of a concrete mixer truck according to claim 1, characterized in that: The slideway (2) includes two parallel guide rods (201). Two U-shaped bolts (5) are fixed to the lower side of the same end of the cover plate (4). The guide rod (201) passes through the chute formed between the U-shaped bolt (5) and the cover plate (4), and the height of this chute is greater than the outer diameter of the guide rod (201).

3. The linkage device for the upper cover of the charging hopper of a concrete mixer truck according to claim 2, characterized in that: One ends of the two guide rods (201) away from the hopper (1) are connected by a limiting rod (202) for limiting the U-shaped bolt (5).

4. A linkage device for the upper cover of the charging hopper of a concrete mixer truck according to claim 1, characterized in that: A reinforcing support plate (3) is fixed at the angle between the slideway (2) and the hopper (1).

5. The linkage device for the upper cover of the hopper of a concrete mixer truck according to claim 1, characterized in that: The handle assembly includes a handle (11), a pin shaft (13), and a base (14); The base (14) is fixed on the lower mounting frame of the concrete mixer truck. The base (14) is rotatably connected to one end of the handle (11) through the pin shaft (13).

6. The linkage device of the upper cover of the hopper of a concrete mixer truck according to claim 4, characterized in that: The swing rod assembly includes a swing rod (10) and a swing arm (9) and an ear (12) respectively hinged at both ends of the swing rod (10). The swing arm (9) is fixedly connected to the swing frame (6), and the ear (12) is fixedly connected to the handle (11).

7. A linkage device for the upper cover of the hopper of a concrete mixer truck according to claim 1, characterized in that: The swing frame (6) is a U-shaped rod, which includes two vertical parts and a horizontal part. The hopper (1) is located between the two vertical parts of the U-shaped rod.

8. The linkage device for the upper cover of the charging hopper of a concrete mixer truck according to claim 7, characterized in that: A rotating seat assembly (7) is movably sleeved on the upper side of the swing frame (6), and the rotating seat assembly (7) is fixed on the cover plate (4).

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