Air suspension of low flatbed semitrailer

Abstract

The utility model belongs to the technical field of trailer tools, and particularly relates to an air suspension of a low flatbed semitrailer, which comprises a support connecting seat, an extension block is rotatably connected to the inner side of the support connecting seat, a bearing plate is fixedly connected to one side of the extension block, a fixing block is fixedly connected to the top end of the bearing plate, and an air bag is fixedly connected to the top end of the bearing plate. A linkage disc is fixedly connected to the top end of the air bag, a cleaning scraping ring is slidably arranged on the outer side of the air bag, a synchronous rod is fixedly connected to one side of the linkage disc, a water storage bin is fixedly connected to the top end of a fixing block, and an extrusion plate is slidably connected to the interior of the water storage bin; through cooperation of the cleaning and scraping ring, the water storage bin and other parts, when the vehicle is lifted and other operations are completed, soil attached to the surface of the air bag can be cleaned and scraped, and therefore the purpose that the cleaning operation of workers on the air bag is omitted is achieved while normal use of the suspension system is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of trailer tools, and in particular relates to an air suspension of a low-bed semitrailer. Background Art

[0002] Semi-trailer air suspension is a composite air suspension specially used for low-bed semi-trailers. Its working principle is to use compressed air formed by an air compressor to send it to the airbag, and change the height and hardness of the vehicle by adjusting the pressure of the gas.

[0003] In actual use, semi-trailers often pass through some muddy roads. Since the airbag is installed near the wheel, when the vehicle passes through the muddy road, the wheel will throw up mud and the like, making the mud easily adhere to the outside of the airbag. The mud and impurities attached to the surface of the airbag will affect the performance and life of the suspension system, resulting in the need for staff to periodically clean the surface of the airbag. However, due to the low installation height of the airbag, it is inconvenient for staff to perform the cleaning operation. Utility Model Content

[0004] The utility model provides an air suspension for a low-bed semi-trailer, which has the characteristics of being able to automatically clean the surface of an air bag when the vehicle is lifted by the air suspension, thereby saving manpower operation and ensuring the service life of the suspension.

[0005] The utility model provides the following technical solution: it includes a supporting connecting seat, an extension block is rotatably connected to the inner side of the supporting connecting seat, one side of the extension block is fixedly connected to a carrying plate, the top of the carrying plate is fixedly connected to a fixed block, the top of the carrying plate is fixedly connected to an airbag, the top of the airbag is fixedly connected to a linkage plate, a cleaning and scraping ring is slidably provided on the outer side of the airbag, one side of the linkage plate is fixedly connected to a synchronization rod, the top of the fixed block is fixedly connected to a water storage tank, the inside of the water storage tank is slidably connected to an extrusion plate, and a traction rope is fixedly connected between the extrusion plate, the synchronization rod and the cleaning and scraping ring.

[0006] Wherein, a rotating shaft is fixedly connected to the outer side of the extension block, and the rotating shaft rotates inside the supporting connecting seat.

[0007] Wherein, a guide rod is fixedly connected to the top of the carrying plate, and the guide rod slides inside the cleaning and scraping ring.

[0008] Wherein, a rubber scraper ring is fixedly connected to the bottom end of the cleaning and scraping ring, an alignment groove is provided inside the cleaning and scraping ring, and the guide rod slides inside the alignment groove.

[0009] Among them, the top end of the water storage tank is fixedly connected with an input pipe, and the bottom end of the extrusion plate is fixedly connected with a counterweight block.

[0010] The beneficial effect of the utility model is that through the cooperation of components such as the cleaning and scraping ring and the water storage tank, while completing operations such as lifting the vehicle, the mud attached to the surface of the airbag can be cleaned and scraped off when the vehicle is lifted, thereby ensuring the normal use of the suspension system while achieving the purpose of omitting the airbag cleaning operation for the staff.

[0011] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0013] Figure 2 This is a schematic diagram of the disassembled structure of the utility model;

[0014] Figure 3 It is a schematic diagram of the cross-sectional structure of the water storage tank in the utility model;

[0015] Figure 4 It is a schematic diagram of the cross-sectional structure of the cleaning and scraping ring in the utility model.

[0016] In the figure: 1. Support connecting seat; 11. Extension block; 12. Rotating shaft; 2. Load-bearing plate; 21. Fixed block; 22. Guide rod; 3. Air bag; 31. Linking plate; 32. Cleaning and scraping ring; 321. Rubber scraping ring; 322. Alignment groove; 33. Synchronous rod; 4. Water storage tank; 41. Extrusion plate; 42. Traction rope; 43. Input pipe; 44. Counterweight block. DETAILED DESCRIPTION

[0017] See also Figure 1-Figure 4 The utility model provides the following technical solutions: it includes a supporting connecting seat 1, an extension block 11 is rotatably connected to the inner side of the supporting connecting seat 1, a supporting plate 2 is fixedly connected to one side of the extension block 11, a fixing block 21 is fixedly connected to the top of the supporting plate 2, an air bag 3 is fixedly connected to the top of the supporting plate 2, a linkage disk 31 is fixedly connected to the top of the air bag 3, a cleaning and scraping ring 32 is slidably provided on the outer side of the air bag 3, a synchronization rod 33 is fixedly connected to one side of the linkage disk 31, a water storage tank 4 is fixedly connected to the top of the fixed block 21, an extrusion plate 41 is slidably connected to the inside of the water storage tank 4, and a traction rope 42 is fixedly connected between the extrusion plate 41, the synchronization rod 33 and the cleaning and scraping ring 32.

[0018] In this embodiment: the support connecting seat 1 is used to support and connect various components, so as to achieve the purpose of driving the vehicle to lift through the cooperation of other components. The support connecting seat 1 is fixed to the bottom of the vehicle and fixed by the vehicle. The extension block 11 rotating inside the support connecting seat 1 is used to connect the support connecting seat 1 and the bearing plate 2, and the extension block 11 can support the bearing plate 2, so that the bearing plate 2 can support the airbag 3. A compressor is installed on the top of the bearing plate 2, and the output end of the compressor is connected to the airbag 3, so that the airbag 3 can drive the vehicle to lift through compressed air. When the airbag 3 drives the vehicle to lift, the vehicle The vehicle will drive the support connecting seat 1 to move, and the extension block 11 can rotate relative to the support connecting seat 1, so that the load-bearing plate 2 will not move with the vehicle, and the fixing block 21 fixed on the top of the load-bearing plate 2 is used to connect and fix the load-bearing plate 2 with the axle, and the axle can complete the support work of the load-bearing plate 2, so that the airbag 3 fixed on the top of the load-bearing plate 2 can complete the lifting work of the vehicle, and the top of the airbag 3 is fixed with a linkage plate 31. When the airbag 3 lifts the vehicle by stretching, the overall height of the airbag 3 will increase, so that the airbag 3 will drive the linkage plate 31 on the top to move synchronously, and the linkage plate 31 will drive one side when moving. The fixed synchronization rod 33 moves synchronously, and a traction rope 42 is fixed between the synchronization rod 33 and the extrusion plate 41. The extrusion plate 41 will move with the synchronization rod 33 through the traction rope 42. The water storage tank 4 is used to store water sources. The staff can introduce the water source into the water storage tank 4 in advance. Since the extrusion plate 41 is located at the bottom of the water storage tank 4, the water storage tank 4 can drive the water source to rise, and the water storage tank 4 is connected to the cleaning and scraping ring 32 through a water pipe, so that the water source can enter the cleaning and scraping ring 32 through squeezing, and the bottom of the cleaning and scraping ring 32 is provided with a plurality of holes, so that the water source can pass through the cleaning and scraping ring 3 2 completes the flushing of the surface of the airbag 3, and a traction rope 42 is also fixed between the cleaning and scraping ring 32 and the squeezing plate 41, so that when the squeezing plate 41 is located at the bottom of the water storage tank 4, the squeezing plate 41 will limit the cleaning and scraping ring 32, and when the squeezing plate 41 is lifted, the squeezing plate 41 will cancel the limit of the cleaning and scraping ring 32, so that the cleaning and scraping ring 32 can slide vertically on the outside of the airbag 3, so that the cleaning and scraping ring 32 can scrape the sludge attached to the surface of the airbag 3 when the cleaning and scraping ring 32 completes the flushing of the airbag 3, thereby eliminating the need for the staff to clean the airbag 3 and ensuring the normal use of the suspension system.

[0019] A rotating shaft 12 is fixedly connected to the outer side of the extension block 11, and the rotating shaft 12 rotates inside the support connecting seat 1; the rotating shaft 12 fixed on the outer side of the extension block 11 is used to connect and support the extension block 11 and the support connecting seat 1, so that the extension block 11 can rotate on the inner side of the support connecting seat 1, thereby completing the support work of the supporting plate 2, ensuring that the supporting plate 2 can provide a carrier for the airbag 3, so that the airbag 3 can complete the lifting work of the vehicle.

[0020] A guide rod 22 is fixedly connected to the top of the supporting plate 2, and the guide rod 22 slides inside the cleaning and scraping ring 32; the guide rod 22 fixed on the top of the supporting plate 2 is used to guide the sliding of the cleaning and scraping ring 32, so that the cleaning and scraping ring 32 will not be offset when sliding on the outside of the airbag 3, ensuring that the cleaning and scraping ring 32 can complete the scraping work of the dirt attached to the surface of the airbag 3.

[0021] A rubber scraper ring 321 is fixedly connected to the bottom end of the cleaning scraper ring 32, and an alignment groove 322 is opened inside the cleaning scraper ring 32, and the guide rod 22 slides inside the alignment groove 322; the rubber scraper ring 321 fixed at the bottom end of the cleaning scraper ring 32 is used to assist in scraping away the dirt attached to the surface of the airbag 3, and the rubber scraper ring 321 can be in close contact with the surface of the airbag 3, so that the rubber scraper ring 321 can complete the scraping work of the dirt attached to the surface of the airbag 3.

[0022] An input pipe 43 is fixedly connected to the top of the water storage tank 4, and a counterweight 44 is fixedly connected to the bottom end of the extrusion plate 41; the input pipe 43 fixed at the top of the water storage tank 4 is used to introduce water into the water storage tank 4, so that the staff can store water into the water storage tank 4 through the input pipe 43 in advance, so that when the airbag 3 drives the extrusion plate 41 to move, the extrusion plate 41 can lift the water source upward to complete the flushing of the surface of the airbag 3, and the counterweight 44 fixed at the bottom end of the extrusion plate 41 is used to increase the mass of the extrusion plate 41, so that when the airbag 3 lowers the height of the vehicle, the extrusion plate 41 can drive the water storage tank 4 to move through the gravity of the counterweight 44, so that the extrusion plate 41 can return to its original position, which is convenient for the next use.

[0023] The working principle and use process of the utility model are as follows: the staff can fix the supporting connecting seat 1 to the frame, and fix the fixing block 21 to the outer side of the axle, so that the axle can support and fix the bearing plate 2. When the vehicle needs to be lifted, the compressor installed on the top of the bearing plate 2 will fill the compressed gas into the airbag 3, so that the airbag 3 can drive the vehicle to be lifted. When the airbag 3 lifts the vehicle by stretching, the overall height of the airbag 3 will increase, so that the airbag 3 will drive the linkage plate 31 at the top to move synchronously, and the linkage plate 31 will drive the synchronization rod 33 fixed on one side to move synchronously when moving. A traction rope 42 is fixed between the synchronization rod 33 and the extrusion plate 41, and the extrusion plate 41 will follow the movement of the synchronization rod 33 through the traction rope 42. The water storage tank 4 is used to store water sources. The staff can introduce the water source into the water storage tank 4 in advance. Since the extrusion plate 41 is located at the bottom of the water storage tank 4, the water storage tank 4 can drive the water source The cleaning scraper ring 32 is lifted up, and the water storage tank 4 is connected to the cleaning scraper ring 32 by a water pipe, so that the water source can enter the cleaning scraper ring 32 by squeezing, and a plurality of holes are opened at the bottom of the cleaning scraper ring 32, so that the water source can complete the flushing of the surface of the airbag 3 through the cleaning scraper ring 32, and a traction rope 42 is also fixed between the cleaning scraper ring 32 and the squeezing plate 41, so that when the squeezing plate 41 is located at the bottom of the water storage tank 4, the squeezing plate 41 will limit the cleaning scraper ring 32, and when the squeezing plate 41 is lifted, the limit of the cleaning scraper ring 32 by the squeezing plate 41 will be cancelled, so that the cleaning scraper ring 32 can slide vertically on the outside of the airbag 3, so that when the cleaning scraper ring 32 completes the flushing of the airbag 3, the sludge attached to the surface of the airbag 3 can be scraped off by the rubber scraper ring 321 at the same time, so as to complete the cleaning of the airbag 3, thereby ensuring that the suspension system can operate stably and eliminating the need for staff to clean the airbag 3.

Claims

1. An air suspension for a low-bed semi-trailer, comprising a support connection seat (1), characterized in that: The inner side of the support connection seat (1) is rotatably connected to an extension block (11), one side of the extension block (11) is fixedly connected to a bearing plate (2), the top of the bearing plate (2) is fixedly connected to a fixed block (21), the top of the bearing plate (2) is fixedly connected to an air bag (3), the top of the air bag (3) is fixedly connected to a linkage disk (31), the outer side of the air bag (3) is slidably provided with a cleaning and scraping ring (32), one side of the linkage disk (31) is fixedly connected to a synchronization rod (33), the top of the fixed block (21) is fixedly connected to a water storage tank (4), the inside of the water storage tank (4) is slidably connected to an extrusion plate (41), and a traction rope (42) is fixedly connected between the extrusion plate (41), the synchronization rod (33) and the cleaning and scraping ring (32).

2. The air suspension of a low-bed semi-trailer according to claim 1, characterized in that: A rotating shaft (12) is fixedly connected to the outer side of the extension block (11), and the rotating shaft (12) rotates inside the supporting connection seat (1).

3. The air suspension of a low-bed semi-trailer according to claim 1, characterized in that: A guide rod (22) is fixedly connected to the top of the carrier plate (2), and the guide rod (22) slides inside the cleaning and scraping ring (32).

4. The air suspension of a low-bed semi-trailer according to claim 3, characterized in that: The bottom end of the cleaning and scraping ring (32) is fixedly connected to a rubber scraping ring (321), an alignment groove (322) is provided inside the cleaning and scraping ring (32), and the guide rod (22) slides inside the alignment groove (322).

5. The air suspension of a low bed semi-trailer according to claim 1, characterized in that: The top end of the water storage tank (4) is fixedly connected to an input pipe (43), and the bottom end of the extrusion plate (41) is fixedly connected to a counterweight block (44).

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