Sanitation vehicle upper part and chassis connecting device

Abstract

The utility model discloses a sanitation vehicle upper part and chassis connecting device, and belongs to the technical field of sanitation special vehicles. Comprising a chassis and an upper assembly, and further comprises a first elastic connecting assembly, a second elastic connecting assembly and a rigid connecting assembly which are used for connecting the chassis and the upper assembly, the first elastic connecting assembly comprises an upper elastic support, a lower elastic support, a lengthened bolt, a spring and a locking nut, the upper elastic support is fixedly connected with an upper assembly longitudinal beam of the upper assembly, and the lower elastic support is fixedly connected with a lower assembly longitudinal beam of the upper assembly. The lower elastic supports are arranged below the upper elastic supports at intervals and fixedly connected with a chassis longitudinal beam, the lengthened bolts sequentially penetrate through the upper elastic supports and the lower elastic supports from the upper portions of the upper elastic supports, the springs are arranged on the upper sections of the lengthened bolts in a sleeving mode, the bottom ends of the springs abut against the upper elastic supports, and the lower elastic supports are fixedly connected with the chassis longitudinal beam. And the locking nut is screwed at the lower end of the lengthened bolt. The vehicle frame has the advantages that impact of road surface vibration on the upper part and the chassis is effectively reduced, and the service life of the vehicle frame is prolonged; reliable connection of the sanitation vehicle upper part and the chassis can be achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of special sanitation vehicles, and in particular relates to a connecting device between a sanitation vehicle upper body and a chassis. Background Art

[0002] With the advancement of science and technology and the continuous development of society, the importance of sanitation and cleaning has become increasingly prominent. As an important part of urban vehicles, sanitation vehicles are responsible for urban cleaning. A sanitation vehicle needs to connect the upper part with the second-class chassis to form a complete vehicle, and at the same time, it is necessary to ensure that the upper part is easy to install. At present, the upper part of the sanitation vehicle is directly hard-connected to the chassis, which will cause the bumps on the chassis to be transmitted to the upper part. The upper part needs to have a high strength and is difficult to design. At the same time, there needs to be a reliable connection structure between the upper part and the chassis to ensure that there will be no loosening or even connection failure under frequent emergency braking conditions. Whether the connection between the upper part and the chassis of the sanitation vehicle is reliable directly affects driving safety and the normal use of the vehicle function.

[0003] In view of the above-mentioned prior art, it is necessary to improve the connection structure between the existing sanitation vehicle upper body and the chassis. To this end, the applicant has made a useful design, and the technical solution to be introduced below is produced in this context. Utility Model Content

[0004] The purpose of the utility model is to provide a sanitation vehicle upper body and chassis connecting device, which has a compact structure, is reliable and durable, can realize the reliable connection between the sanitation vehicle upper body and the chassis, improve the safety during driving, and ensure the stable performance of the functions.

[0005] The purpose of the utility model is achieved in this way. A device for connecting an upper body and a chassis of a sanitation vehicle comprises a chassis and an upper body located above the chassis, and also comprises a first elastic connection component, a second elastic connection component and a rigid connection component for connecting the chassis and the upper body. The first elastic connection component comprises an upper elastic support, a lower elastic support, an extension bolt, a spring and a locking nut. The upper elastic support is fixedly connected to the upper body longitudinal beam of the upper body, and the lower elastic support is arranged at intervals below the upper elastic support and is fixedly connected to the chassis longitudinal beam. The extension bolt passes through the upper elastic support and the lower elastic support in sequence from above the upper elastic support. The spring is sleeved on the upper section of the extension bolt, and the bottom end abuts against the upper elastic support. The locking nut is screwed on the lower end of the extension bolt, and the top end of the spring abuts against the extension bolt. The nut surfaces of the long bolts are in conflict with each other; the second elastic connection component includes an upper fixing plate, an upper connecting plate, a lower fixing plate, a lower connecting plate and a rubber gasket, the upper fixing plate is fixedly connected to the upper longitudinal beam, the upper fixing plate is formed with a groove in the middle of the bottom, the upper connecting plate is arranged at the bottom end of the upper fixing plate and extends horizontally outward, the lower fixing plate is fixedly connected to the chassis longitudinal beam, the lower fixing plate is formed with a protrusion in the middle of the upper end and corresponding to the groove, the lower connecting plate is arranged at the upper end of the lower fixing plate and is spaced parallel to the upper connecting plate, and the rubber gasket is arranged between the upper connecting plate and the lower connecting plate; the rigid connection component includes a fixing plate, one end of the fixing plate is fixedly connected to the upper longitudinal beam, and the other end is fixedly connected to the chassis longitudinal beam, so that the chassis and the upper body are rigidly connected.

[0006] In a specific embodiment of the present invention, the first elastic connection assembly further includes a pair of spring fixing seats, and the pair of spring fixing seats are sleeved on the lengthened bolts and are respectively located at two ends of the spring.

[0007] In another specific embodiment of the utility model, the upper elastic support is composed of an upper support bottom plate, an upper support back plate and a pair of upper support side plates, and the lower elastic support is composed of a lower support bottom plate, a lower support back plate and a pair of lower support side plates. The lengthened bolts pass through the lower support bottom plate and the upper support bottom plate in sequence, and the spring fixing seat located at the lower end of the spring of the pair of spring fixing seats abuts against the upper support bottom plate, and the spring fixing seat located at the upper end of the spring abuts against the locking nut, the upper support back plate is fitted with the upper longitudinal beam and welded and fixed, and the lower support back plate is fitted with the chassis longitudinal beam and fixedly connected by bolts and nuts.

[0008] In another specific embodiment of the present invention, the second elastic connection assembly further includes an upper reinforcing angle plate connected between the upper fixing plate and the upper connecting plate, and a lower reinforcing angle plate connected between the lower fixing plate and the lower connecting plate.

[0009] In another specific embodiment of the present invention, the upper fixing plate, the upper connecting plate and the upper reinforcing angle plate are fixed by welding; the lower fixing plate, the lower connecting plate and the lower reinforcing angle plate are fixed by welding.

[0010] In another specific embodiment of the present invention, the upper fixing plate, the upper connecting plate and the upper reinforcing angle plate are cast as an integral part; the lower fixing plate, the lower connecting plate and the lower reinforcing angle plate are cast as an integral part.

[0011] In a further specific embodiment of the present invention, the upper fixing plate is abutted against the upper longitudinal beam and is fixedly connected by bolts and nuts, the lower fixing plate is abutted against the chassis longitudinal beam and is fixedly connected by bolts and nuts, and the upper connecting plate, rubber gasket and lower connecting plate are fixed by bolts and nuts.

[0012] In a more specific embodiment of the present invention, the upper end of the fixing plate is abutted against the upper longitudinal beam and fixed by bolts and nuts; the lower end of the fixing plate is abutted against the chassis longitudinal beam and fixed by bolts and nuts.

[0013] In yet another specific embodiment of the present invention, there are multiple first elastic connection components, second elastic connection components and rigid connection components, which are arranged at intervals along the length direction of the sanitation vehicle.

[0014] Due to the adoption of the above structure, the utility model has the following beneficial effects compared with the prior art: a reliable connection between the upper part and the chassis of the sanitation vehicle is achieved through a combination of three different connection forms, wherein the elastic connection structure can buffer the bumps transmitted from the chassis to the upper part, effectively reducing the impact of road vibration on the upper part when the vehicle is running; conversely, the impact of the upper part on the chassis can also be alleviated, damage to the chassis longitudinal beams can be prevented, and the service life of the frame can be extended; when the fixing plate is connected, a rigid structure is formed between the upper part and the chassis, which can ensure that the connection point is reliably fastened and the stability and reliability of the entire vehicle are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the sanitation vehicle of the utility model;

[0016] Figure 2 for Figure 1 AA section view;

[0017] Figure 3 for Figure 1 BB cross-sectional view;

[0018] Figure 4 for Figure 3 A front view of

[0019] Figure 5 for Figure 1 CC cross-sectional view.

[0020] In the figure: 1. chassis, 11. chassis longitudinal beam; 2. upper body, 21. upper body longitudinal beam; 3. first elastic connection component, 31. upper elastic support, 311. upper support bottom plate, 312. upper support back plate, 313. upper support side plate, 32. lower elastic support, 321. lower support bottom plate, 322. lower support back plate, 323. lower support side plate, 33. extension bolt, 34. spring, 35. locking nut, 36. spring fixing seat; 4. second elastic connection component, 41. upper fixing plate, 411. groove, 42. upper connecting plate, 43. lower fixing plate, 431. bump, 44. lower connecting plate, 45. rubber gasket, 46. upper reinforcing angle plate, 47. lower reinforcing angle plate; 5. rigid connection component, 51. fixing plate. DETAILED DESCRIPTION

[0021] The specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings, but the description of the embodiments is not a limitation of the technical solution. Any changes in form rather than substance based on the concept of the present invention should be regarded as the protection scope of the present invention.

[0022] In the following description, all concepts related to directionality (or orientation) such as up, down, left, right, front and back are referring to the position state of the figure being described, and are intended to facilitate public understanding. Therefore, they should not be understood as special limitations on the technical solutions provided by the present utility model.

[0023] See also Figure 1 The utility model relates to a device for connecting a sanitation vehicle upper body and a chassis, comprising a chassis 1 and an upper body 2 located above the chassis 1, and also comprising a first elastic connection component 3, a second elastic connection component 4 and a rigid connection component 5 for connecting the chassis 1 and the upper body 2. There are multiple first elastic connection components 3, second elastic connection components 4 and rigid connection components 5, which are arranged at intervals along the length direction of the sanitation vehicle. In this embodiment, multiple first elastic connection components 3 are arranged at the front section of the sanitation vehicle body, multiple second elastic connection components 4 are arranged at the middle section of the sanitation vehicle body, and multiple rigid connection components 5 are arranged at the rear section of the sanitation vehicle body, but the actual application is not limited to this. The first elastic connection component 3, the second elastic connection component 4 and the rigid connection component 5 can have different combinations and quantity changes, and can be arranged at different positions of the sanitation vehicle according to actual conditions.

[0024] See also Figure 2, the first elastic connection assembly 3 includes an upper elastic support 31, a lower elastic support 32, an extension bolt 33, a spring 34, a locking nut 35 and a spring fixing seat 36. The upper elastic support 31 is located on both sides of the upper longitudinal beam 21 of the upper body 2, and the lower end of the upper elastic support 31 is blocked on both sides of the chassis longitudinal beam 11 of the chassis 1, which prevents the upper body part from shifting left and right. The upper elastic support 31 is surrounded by an upper support bottom plate 311, an upper support back plate 312 and a pair of upper support side plates 313, and the lower elastic support 32 is surrounded by a lower support bottom plate 321, a lower support back plate 322 and a pair of lower support side plates 323. The extension bolt 33 passes through the upper support bottom plate 311 and the lower support bottom plate 321 in sequence, and extends to the bottom of the lower support bottom plate 321. The upper support back plate 312 is fitted with the upper longitudinal beam 21 and fixed by welding. The lower elastic support 32 is arranged below the upper elastic support 31 at intervals, and the lower support back plate 322 is fitted with the chassis longitudinal beam 11 and fixedly connected by bolts and nuts. The lengthening bolt 33 passes through the upper elastic support 31 and the lower elastic support 32 in sequence from the upper elastic support 31. The spring 34 is sleeved on the upper section of the lengthening bolt 33, and the locking nut 35 is screwed on the lower end of the lengthening bolt 33. There is a pair of spring fixing seats 36, and the pair of spring fixing seats 36 are sleeved on the lengthening bolt 33 and are respectively located at both ends of the spring 34. The spring fixing seat 36 located at the lower end of the spring 34 of the pair of spring fixing seats 36 abuts on the upper support bottom plate 311, and the spring fixing seat 36 located at the upper end of the spring 34 abuts on the nut surface of the lengthening bolt 33. By adjusting the compression length of the spring 34 between the upper elastic support 31 and the lower elastic support 32, the difficulty of the upper assemblies 2 and the chassis 1 to vibrate up and down elastically can be adjusted. The elastic connection between the chassis 1 and the upper body 2 can effectively reduce the impact of road vibration on the upper body 2 when the vehicle is running; conversely, it can also alleviate the impact of the upper body 2 on the chassis 1 and prevent the chassis longitudinal beam 11 from being damaged.

[0025] See also Figure 3 and Figure 4 The second elastic connection assembly 4 includes an upper fixing plate 41, an upper connecting plate 42, a lower fixing plate 43, a lower connecting plate 44 and a rubber gasket 45. The upper fixing plate 41 is abutted against the upper longitudinal beam 21 and fixedly connected by bolts and nuts, and the lower fixing plate 43 is abutted against the chassis longitudinal beam 11 and fixedly connected by bolts and nuts. The upper fixing plate 41 is formed with a groove 411 in the middle of the bottom, and the upper connecting plate 42 is arranged at the bottom end of the upper fixing plate 41 and extends horizontally outward. The lower fixing plate 43 is formed with a protrusion 431 in the middle of the upper end and corresponding to the groove 411.

[0026] The protrusion 431 extends into the groove 411 of the upper fixing plate 41 and can slide up and down, playing the role of left and right and front and back positioning and anti-shearing. The lower connecting plate 44 is arranged at the upper end of the lower fixing plate 43 and is spaced and parallel to the upper connecting plate 42. The rubber gasket 45 is arranged between the upper connecting plate 42 and the lower connecting plate 44, and the three are fixed by bolts and nuts. When the vehicle is running, the rubber gasket 45 plays a shock-absorbing role to reduce the impact of road vibration on the upper body 2.

[0027] Furthermore, the second elastic connection component 4 also includes an upper reinforcing angle plate 46 connected between the upper fixing plate 41 and the upper connecting plate 42, and a lower reinforcing angle plate 47 connected between the lower fixing plate 43 and the lower connecting plate 44, to strengthen the firmness of the second elastic connection component 4. In this embodiment, the upper fixing plate 41, the upper connecting plate 42 and the upper reinforcing angle plate 46 are welded and fixed, or the upper fixing plate 41, the upper connecting plate 42 and the upper reinforcing angle plate 46 are cast as an integral part. Similarly, the lower fixing plate 43, the lower connecting plate 44 and the lower reinforcing angle plate 47 are welded and fixed; or the lower fixing plate 43, the lower connecting plate 44 and the lower reinforcing angle plate 47 are cast as an integral part.

[0028] Please see Figure 5 The rigid connection assembly 5 includes a fixing plate 51, the upper end of which is abutted against the upper longitudinal beam 21 and fixed with bolts and nuts; the lower end of which is abutted against the chassis longitudinal beam 11 and fixed with bolts and nuts. When the mass of the upper body 2 of the sanitation vehicle is the largest, the upper longitudinal beam 21 will be close to the chassis longitudinal beam 11. The upper body 2 and the chassis 1 are rigidly connected through the fixing plate 51, ensuring that the connection point is securely fastened, thereby improving the stability and reliability of the entire vehicle.

Claims

1. A device for connecting a sanitation vehicle upper body and a chassis, comprising a chassis (1) and an upper body (2) located above the chassis (1), characterized in that: The invention also comprises a first elastic connection assembly (3), a second elastic connection assembly (4) and a rigid connection assembly (5) for connecting the chassis (1) and the upper body (2); the first elastic connection assembly (3) comprises an upper elastic support (31), a lower elastic support (32), an extension bolt (33), a spring (34) and a locking nut (35); the upper elastic support (31) is fixedly connected to the upper body longitudinal beam (21) of the upper body (2); the lower elastic support (32) is arranged at intervals on the upper elastic support (31) and the lower elastic support (32) is arranged at intervals on the upper elastic support (31). The second elastic connection assembly (4) comprises an upper fixing plate (31) and a lower fixing plate (32) which are fixedly connected to the chassis longitudinal beam (11); the extension bolt (33) passes through the upper elastic support (31) and the lower elastic support (32) in sequence from the top of the upper elastic support (31); the spring (34) is sleeved on the upper section of the extension bolt (33) and the bottom end thereof abuts against the upper elastic support (31); the locking nut (35) is screwed on the lower end of the extension bolt (33) and the top end of the spring (34) abuts against the nut surface of the extension bolt (33); the second elastic connection assembly (4) comprises an upper fixing plate (31) and a lower fixing plate (32); the upper fixing plate (31) and the lower fixing plate (32) are fixedly connected to the chassis longitudinal beam (11); the extension bolt (33) passes through the upper elastic support (31) and the lower elastic support (32) in sequence from the top of the upper elastic support (31); the spring (34) is sleeved on the upper section of the extension bolt (33) and the bottom end thereof abuts against the upper elastic support (31); the locking nut (35) is screwed on the lower end of the extension bolt (33) and the top end of the spring (34) abuts against the nut surface of the extension bolt (33); the second elastic connection assembly (4) comprises an upper fixing plate (31) and a lower fixing plate (31) which are fixedly connected to the chassis longitudinal beam (11); the upper fixing plate (31) and the lower fixing plate (32) ... 41), an upper connecting plate (42), a lower fixing plate (43), a lower connecting plate (44) and a rubber gasket (45), wherein the upper fixing plate (41) is fixedly connected to the upper longitudinal beam (21), the upper fixing plate (41) is formed with a groove (411) in the middle of the bottom, the upper connecting plate (42) is arranged at the bottom end of the upper fixing plate (41) and extends horizontally outward, the lower fixing plate (43) is fixedly connected to the chassis longitudinal beam (11), and the lower fixing plate (43) is in the middle of the upper end and corresponds to the groove ( 411) is formed with a protrusion (431), the lower connecting plate (44) is arranged at the upper end of the lower fixing plate (43) and is spaced and parallel to the upper connecting plate (42), and the rubber gasket (45) is arranged between the upper connecting plate (42) and the lower connecting plate (44); the rigid connection component (5) includes a fixing plate (51), one end of the fixing plate (51) is fixedly connected to the upper longitudinal beam (21), and the other end is fixedly connected to the chassis longitudinal beam (11), so that the chassis (1) and the upper body (2) are rigidly connected.

2. A sanitation vehicle upper body and chassis connection device according to claim 1, characterized in that: The first elastic connection assembly (3) further comprises a pair of spring fixing seats (36), wherein the pair of spring fixing seats (36) are sleeved on the lengthening bolt (33) and are respectively located at two ends of the spring (34).

3. A sanitation vehicle upper body and chassis connection device according to claim 2, characterized in that: The upper elastic support (31) is composed of an upper support bottom plate (311), an upper support back plate (312) and a pair of upper support side plates (313); the lower elastic support (32) is composed of a lower support bottom plate (321), a lower support back plate (322) and a pair of lower support side plates (323); the extension bolt (33) passes through the lower support bottom plate (321) and the upper support bottom plate (311) in sequence; the pair of springs The spring fixing seat (36) located at the lower end of the spring (34) in the fixing seat (36) contacts the upper support bottom plate (311), and the spring fixing seat (36) located at the upper end of the spring (34) contacts the locking nut (35). The upper support back plate (312) is fitted with the upper longitudinal beam (21) and fixed by welding. The lower support back plate (322) is fitted with the chassis longitudinal beam (11) and fixedly connected by bolts and nuts.

4. A sanitation vehicle upper body and chassis connection device according to claim 1, characterized in that: The second elastic connection assembly (4) further comprises an upper reinforcing angle plate (46) connected between the upper fixing plate (41) and the upper connecting plate (42), and a lower reinforcing angle plate (47) connected between the lower fixing plate (43) and the lower connecting plate (44).

5. A sanitation vehicle upper body and chassis connection device according to claim 4, characterized in that: The upper fixing plate (41), the upper connecting plate (42) and the upper reinforcing angle plate (46) are welded and fixed to each other; and the lower fixing plate (43), the lower connecting plate (44) and the lower reinforcing angle plate (47) are welded and fixed to each other.

6. A sanitation vehicle upper body and chassis connection device according to claim 4, characterized in that: The upper fixing plate (41), the upper connecting plate (42) and the upper reinforcing angle plate (46) are cast as one-piece parts; the lower fixing plate (43), the lower connecting plate (44) and the lower reinforcing angle plate (47) are cast as one-piece parts.

7. The device for connecting the upper body and chassis of a sanitation vehicle according to claim 1, characterized in that: The upper fixing plate (41) is abutted against the upper longitudinal beam (21) and is fixedly connected by bolts and nuts, the lower fixing plate (43) is abutted against the chassis longitudinal beam (11) and is fixedly connected by bolts and nuts, and the upper connecting plate (42), rubber gasket (45) and lower connecting plate (44) are fixed by bolts and nuts.

8. The device for connecting the upper body and chassis of a sanitation vehicle according to claim 1, characterized in that: The upper end of the fixing plate (51) is abutted against the upper longitudinal beam (21) and fixed by bolts and nuts; the lower end of the fixing plate (51) is abutted against the chassis longitudinal beam (11) and fixed by bolts and nuts.

9. The device for connecting the upper body and chassis of a sanitation vehicle according to claim 1, characterized in that: There are a plurality of the first elastic connection components (3), the second elastic connection components (4) and the rigid connection components (5), which are arranged at intervals along the length direction of the sanitation vehicle.

Images