Sliding rear door mechanism of compression garbage truck

Abstract

The utility model relates to a sliding rear door mechanism of a compression garbage truck. The sliding rear door mechanism comprises a rear door plate and an air cylinder driving the rear door plate to move. The rear door plate can close or open a tail opening of a filling body of the garbage truck under the driving of the air cylinder; the air cylinders are symmetrically arranged on the two sides of the tail of the filling body, one ends of the air cylinders are installed on the filling body, and the other ends of the air cylinders are connected with rotating arms. One end of the rotating arm is hinged to the side face of the filling body, and the other end of the rotating arm is hinged to the side edge of the top of the rear door plate. A roller assembly is arranged at the bottom of the rear door plate and can move on a guide rail at an opening in the tail of the filling body. The sliding rear door mechanism of the compression type garbage truck is small in occupied space, and has the advantages of being stable and reliable due to the fact that the sliding rear door mechanism is a four-connecting-rod mechanism and operates in a sliding mode.

Description

Technical Field

[0001] The utility model relates to a sliding rear door mechanism of a compression type garbage truck, belonging to the technical field of special vehicles. Background Art

[0002] The existing rear-loading compression type garbage truck, as an efficient garbage collection and transportation tool, has the advantages of good airtightness and high transportation efficiency, and is widely used in urban garbage treatment. However, at the present stage, the opening of the rear door of the compression type garbage truck occupies a large space, and most of them adopt hinge connections. The damage to the hinges during the opening and closing process of the rear door is inevitable, seriously affecting the reliability of the rear door. Summary of the Invention

[0003] The purpose of the utility model is to provide a sliding rear door mechanism of a compression type garbage truck with small occupied space and stable reliability to overcome the problems in the prior art.

[0004] To solve the above technical problems, the technical solution proposed by the utility model is: a sliding rear door mechanism of a compression type garbage truck, including: a rear door panel and a cylinder for driving the rear door panel to move; the rear door panel can close or open the tail opening of the loading body of the garbage truck under the drive of the cylinder; the cylinders are symmetrically arranged on both sides of the tail of the loading body, one end of the cylinder is installed on the loading body, and the other end is connected with a rotating arm; one end of the rotating arm is hinged to the side surface of the loading body, and the other end is hinged to the side edge of the top of the rear door panel; the bottom of the rear door panel is provided with a roller assembly, and the roller assembly can move on the guide rail at the tail opening of the loading body.

[0005] The further improvement of the above technical solution is that: the rotating arm includes a connecting arm and a connecting block; both ends of the connecting arm are provided with bushings; the connecting block is located on the rotating arm, and a support for connecting the cylinder is arranged on the connecting block.

[0006] The further improvement of the above technical solution is that: the side edge of the top of the rear door panel is provided with a shaft for cooperating with the bushing of the connecting arm; a roller plate with a threaded hole is fixed at the bottom of the rear door panel; the roller assembly is installed on the roller plate of the rear door panel through the threaded hole.

[0007] The further improvement of the above technical solution is that: the rear door panel is arc-shaped to match the tail of the loading body. When the rear door panel closes the tail opening of the loading body, the rear door panel fits with the guide rail at the tail opening of the loading body.

[0008] The further improvement of the above technical solution lies in that: the rear door panel is a frame structure composed of long angle steels at the upper and lower ends, a reinforcing channel steel in the middle, and arc channel steels on the left and right sides; a panel is covered on the frame structure; the top of the rear door panel has a shaft fixing plate for fixing the shaft; and a limiting plate is arranged inside the shaft.

[0009] The further improvement of the above technical solution lies in that: the roller assembly includes a roller, a threaded mounting seat, a roller angle steel, and a backing plate; the roller is threadedly mounted on the threaded mounting seat, and the threaded mounting seat is mounted on the roller angle steel; the roller angle steel has holes corresponding to the threaded holes of the roller plate; the roller assembly is mounted on the roller plate through the roller angle steel; the backing plate has long slot holes corresponding to the threaded holes of the roller plate, and the backing plate is used to adjust the gap between the roller assembly and the guide rail of the loading body.

[0010] The cylinder is mounted on the loading body through a cylinder support seat, and the cylinder support seat includes a fixing plate and a cylinder mounting shaft on the fixing plate.

[0011] The sliding rear door mechanism of the compression garbage truck provided by the present utility model occupies a small space and has the characteristics of stability and reliability due to its four-bar mechanism and sliding operation, etc. Description of the Drawings

[0012] The present utility model will be further described below with reference to the drawings.

[0013] Figure 1 It is a schematic structural diagram of a preferred embodiment of the present utility model.

[0014] Figure 2 It is Figure 1 The structural diagram of the transfer arm.

[0015] Figure 3 It is Figure 1 The structural diagram of the middle rear door panel.

[0016] Figure 4 It is Figure 1 The structural diagram of the middle cylinder support seat.

[0017] Figure 5 It is Figure 1 The structural diagram of the middle roller assembly.

[0018] Figure 6 It is Figure 1 The partial structural diagram of the transfer arm and the rear door panel.

[0019] Figure 7 It is Figure 1 The partial structural diagram of the middle rear door panel and the roller assembly. Detailed Embodiment

[0020] Embodiment: The sliding rear door panel of the compression garbage truck in this embodiment is as Figure 1 shown, including: a pair of swing arms 1, a pair of cylinder supports 3, a pair of roller assemblies 4, and a rear door panel 2. As Figure 2 shown, the swing arms 1 are respectively provided with bushings 11, connection blocks 12, connecting plates 13, bushings 14, and supports 15. As Figure 3 shown, the rear door panel 2 is provided with a shaft 21, a limit plate 22, a rear door angle steel 23, a threaded plate 24, a rear door bent channel steel 25, a rear door channel steel 26, a panel 27, and a shaft fixing plate 28. As Figure 4 shown, the cylinder support 3 is provided with a cylinder mounting shaft 31 and a fixing plate 32. As Figure 5 shown, the roller assemblies 4 are respectively provided with rollers 41, roller angle steels 42, reinforcing ribs 43, backing plates 44, and threaded mounting seats 45. The rollers 41 can be installed on the threaded mounting seats 45 through threads, which is convenient for replacement.

[0021] The rear door panel 2 is an overall arc-shaped structure. When the rear door is in the closed state, the panel 27 of the rear door fits the arc-shaped guide rail of the loading body.

[0022] As Figure 1 , 2 , 3, and 6 shown, the bushings 11 of the swing arms 1 are respectively fixedly installed on the two outer sides of the loading body at the rear of the garbage truck. The bushings 14 of the swing arms 1 are respectively connected to the shafts 21 of the rear door panel 2 through pins. At the same time, the limit plates 22 of the rear door panel 2 can limit the translational movement of the bushings 14. As Figure 1 , 3 , 5, and 7 shown, the threaded plates 24 of the rear door panel 2 are connected to the left and right roller assemblies 4 through bolts, which is convenient for installation and disassembly. At the same time, the roller assemblies 4 are respectively provided with backing plates 44 with long slot holes, which is convenient for adjusting the gap between the roller assemblies 4 and the arc-shaped guide rail of the loading body. The rollers 41 of the roller assemblies 4 can slide on the arc-shaped guide rail of the loading body. The cylinder supports 3 are fixed on the two outer sides of the loading body. Cylinders are respectively arranged between the supports 15 of the swing arms 1 and the 31 of the cylinder supports 3. During operation, the piston rod of the cylinder extends and retracts to drive the rear door panel 2 to rise and fall through the left and right swing arms 1. The roller assemblies 4 follow the rear door panel 2 and slide in the arc-shaped guide rail of the loading body, while restricting the movement track of the rear door panel 2. Therefore, it has the characteristics of small occupied space, and because it is a four-bar linkage mechanism, it has the characteristics of stability and reliability.

[0023] The above is only the preferred embodiment of the present invention, and it is not a limitation to the present invention in other forms. Any person skilled in the art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the technical solution content of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. A sliding rear door mechanism for a compression garbage truck, comprising: Rear door panel and a cylinder for driving the rear door panel to move; Driven by the cylinder, the rear door panel can close or open the tail opening of the loading body of the garbage truck; characterized in that the cylinders are symmetrically arranged on both sides of the tail of the loading body, one end of each cylinder is mounted on the loading body, and the other end is connected with a swing arm; one end of the swing arm is hinged to the side of the loading body, and the other end is hinged to the side edge at the top of the rear door panel; the bottom of the rear door panel is provided with a roller assembly, and the roller assembly can move on the guide rail at the tail opening of the loading body.

2. The sliding rear door mechanism of the compression garbage truck according to claim 1, wherein: The swing arm includes a connecting arm and a connecting block; both ends of the connecting arm are provided with bushings; the connecting block is located on the swing arm, and a support for connecting the cylinder is provided on the connecting block.

3. The sliding rear door mechanism of the compression refuse collector according to claim 2, wherein: The side edge at the top of the rear door panel is provided with a shaft for cooperating with the bushing of the connecting arm; a roller plate with a threaded hole is fixed at the bottom of the rear door panel; the roller assembly is installed on the roller plate of the rear door panel through the threaded hole.

4. The sliding rear door mechanism of the compression refuse collector according to claim 3, characterized in that: The rear door panel is arc-shaped to match the tail of the loading body. When the rear door panel closes the tail opening of the loading body, the rear door panel fits with the guide rail at the tail opening of the loading body.

5. The sliding rear door mechanism of the compression garbage truck according to claim 4, characterized in that: The rear door panel is a frame structure composed of long angle steels at the upper and lower ends, a reinforcing channel steel in the middle, and arc-shaped channel steels on the left and right sides; a panel is covered on the frame structure; the top of the rear door panel is provided with a shaft fixing plate for fixing the shaft; a limiting plate is arranged inside the shaft.

6. The sliding rear door mechanism of the compression garbage truck according to claim 5, wherein: The roller assembly includes a roller, a threaded mounting seat, a roller angle steel and a backing plate; the roller is threadedly installed on the threaded mounting seat, and the threaded mounting seat is installed on the roller angle steel; the roller angle steel is provided with holes corresponding to the threaded holes of the roller plate; the roller assembly is installed on the roller plate through the roller angle steel; the backing plate is provided with long slot holes corresponding to the threaded holes of the roller plate, and the backing plate is used to adjust the gap between the roller assembly and the guide rail of the loading body.

7. The sliding rear door mechanism of the compression garbage truck according to claim 6, characterized in that: The cylinder is installed on the loading body through a cylinder support, and the cylinder support includes a fixing plate and a cylinder mounting shaft on the fixing plate.

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