Carriage supporting frame of semitrailer
By designing a combination of slider, spring, oblique frame and telescopic frame, the vertical pressure of the car body is transferred to horizontal pressure, which solves the problem of poor shock absorption effect of the existing semi-trailer car body and improves the car body Stability and service life.
Patent Information
- Application Number
- CN202421196456.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-29
AI Technical Summary
The shock absorption effect of the existing semi-trailer car support frame is average, resulting in unstable cargo body, shaking cargo and shortening service life.
A semi-trailer car support frame including a base plate, a carriage, and a shock absorbing mechanism is designed. The shock absorbing mechanism transfers vertical pressure to horizontal pressure through a combination of slider, spring, oblique frame and telescopic frame, and prevents the car from being protected from being The body rubs directly with the base plate.
It improves the shock absorption effect, prevents direct friction between the car body and the bottom plate, extends the service life of the car body, and effectively prevents cargo from shaking.
Smart Images
Figure CN222247415U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of a semitrailer carriage body support frame, in particular to a semitrailer carriage support frame. Background Art
[0002] A semitrailer is a trailer with the axle placed behind the center of gravity of the vehicle and equipped with a coupling device that can transmit horizontal and vertical forces to the tractor.
[0003] When the semi-trailer in the prior art is driving, the carriage body will be vibrated, which will cause the carriage body to be unstable, causing the goods inside the carriage body to shake and be damaged, which may be dangerous. The existing vibration-absorbing support frame can only offset the impact force of the carriage body from the vertical direction, and the shock-absorbing effect is general. In addition, the carriage body of the existing semi-trailer is in direct contact with the vehicle floor, so that the carriage body will rub against the vehicle floor when vibrating, resulting in a shortened service life of the carriage body. In response to the above problems, we have launched a semi-trailer carriage support frame. Utility Model Content
[0004] The utility model discloses a semi-trailer carriage support frame, aiming to solve the technical problem that the shock absorption effect of the carriage body support frame in the prior art is average.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A semi-trailer carriage support frame comprises a bottom plate, a slide frame is slidably connected inside the bottom plate, a carriage body is fixedly connected to the top of the slide frame, and a shock absorbing mechanism is arranged inside the bottom plate;
[0007] The shock absorbing mechanism includes a fixed frame, two fixed frames are fixedly connected inside the bottom plate and located below the slide frame, the outer sides of the fixed frames are symmetrically slidably connected with sliders, first springs are sleeved between the sliders and the bottom plate and located on the outer sides of the fixed frames, a support block is fixedly connected to the bottom of the carriage body, and two inclined frames are rotatably connected to the front and rear sides of the support block, each two inclined frames are designed in opposite directions, and the ends of the inclined frames away from the support blocks are rotatably connected to the slider, a plurality of first columns are fixedly connected inside the bottom plate, a first support plate is slidably connected inside the first column, a second spring is fixedly connected inside the first column and located below the first support plate, a first telescopic frame is slidably connected inside the first column, and the bottom of the first telescopic frame passes through the first column and is fixedly connected to the first support plate.
[0008] By setting the slider and the fixed frame to slide, when the vehicle is running, the car body is affected by its own gravity to generate a downward pressure, and then the first telescopic frame presses the first support plate downward, so that the first support plate presses the second spring to achieve preliminary shock absorption, and the remaining pressure is transmitted to the inclined frames on both sides of the support block through the support block, so that the inclined frame moves downward and pushes the slider to slide, and then the slider presses the first spring to both sides, transferring the vertical pressure to the horizontal direction, and the buffering of the first spring makes the horizontal pressure offset, which is beneficial to improve the shock absorption effect.
[0009] In a preferred solution, the top of the slider is fixedly connected to a second column, the inside of the second column is slidably connected to a second telescopic frame, the bottom of the second telescopic frame passes through the second column and is fixedly connected to a second support plate, the second support plate is slidably connected to the second column, the bottom of the second support plate and located inside the second column is fixedly connected to a third spring, and a roller is installed on the top of the second telescopic frame, and the roller is in contact with the bottom of the car body.
[0010] By setting the roller to fit the bottom of the carriage body, when the carriage body is downward under gravity, the slider squeezes the first spring to both sides, and then the roller rotates at the bottom of the carriage body, which is helpful to prevent the carriage body from directly rubbing against the bottom plate during vibration, resulting in a shortened service life of the carriage body.
[0011] In a preferred embodiment, two doors are installed on one side of the carriage body, one of the doors is fixedly connected to a circular column on its outer side, a rotating clamping rod is rotatably connected to the outer side of the circular column, and the other door is fixedly connected to a mounting seat on its outer side, a groove is provided on the top of the mounting seat, a fixing bolt is threadedly connected to the inner side of the mounting seat, and the bottom end of the fixing bolt passes through the groove and is threadedly connected to the rotating clamping rod.
[0012] The rotating clamp rod is arranged so that the rotating clamp rod is inserted into the groove, and then the fixing bolt is rotated to pass through the groove to fix the rotating clamp rod, thereby fixing the two compartment doors.
[0013] In a preferred solution, four limiting grooves are provided inside the bottom plate, and the bottom of the sliding block is fixedly connected to a limiting block, and the limiting block is slidably connected to the limiting grooves.
[0014] The limiting block is arranged to slide inside the limiting groove, which is helpful for limiting the sliding block.
[0015] In a preferred solution, four connection blocks are fixedly connected to the outer side of the carriage body, and threaded holes are provided inside the connection blocks.
[0016] The connection blocks and the threaded holes are provided to facilitate the bolts to pass through the threaded holes so as to fix the bottom plate to the semi-trailer.
[0017] In a preferred solution, two buckle rings are fixedly connected to both sides of the inner wall of the carriage body, and a pull rod is fixedly connected to the outer side of the door.
[0018] By setting a buckle ring to connect with the external rope, the rope can fix the cargo inside the car body, which is helpful to prevent the cargo from shaking, and the pull rod is helpful to quickly open the car door.
[0019] The semi-trailer carriage support frame provided by the utility model has the following advantages:
[0020] First, when the carriage body generates a downward pressure due to its own gravity, the first telescopic frame presses the first support plate downward, causing the first support plate to press the second spring to achieve initial shock absorption. The remaining pressure is transmitted to the inclined frame through the support blocks, causing the inclined frame to move downward and push the slider to slide. Then the slider presses the first spring to both sides, transferring the vertical pressure to the horizontal direction. The first spring acts as a buffer to offset the horizontal pressure, which is beneficial to improving the shock absorption effect.
[0021] Secondly, by fitting the roller with the bottom of the carriage body, when the carriage body generates a downward pressure due to its own gravity, the support blocks transfer the pressure to the inclined frame, causing the inclined frame to move downward and push the slider to slide, and then the slider squeezes the first spring to both sides, causing the carriage body and the roller to slide, which helps prevent the carriage body from directly rubbing against the bottom plate during vibration, resulting in a shortened service life of the carriage body. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 The utility model is a three-dimensional schematic diagram of a semi-trailer carriage support frame.
[0023] Figure 2 The utility model is a partial three-dimensional exploded schematic diagram of a semi-trailer compartment support frame.
[0024] Figure 3 The utility model is a partially cutaway stereoscopic schematic diagram of a semi-trailer compartment support frame.
[0025] Figure 4 A semi-trailer carriage support frame proposed by the utility model Figure 1 Enlarged schematic diagram at point A in the middle.
[0026] In the accompanying drawings: 1, bottom plate; 2, slide; 3, car body; 4, snap ring; 5, shock absorbing mechanism; 501, fixed frame; 502, slider; 503, first spring; 504, inclined frame; 505, support block; 506, first column; 507, first telescopic frame; 508, first support plate; 509, second spring; 601, second column; 602, second telescopic frame; 603, second support plate; 604, third spring; 605, roller; 701, circular column; 702, rotating clamping rod; 703, fixing bolt; 704, mounting seat; 705, groove; 8, limiting groove; 9, limiting block; 10, connecting block; 11, threaded hole; 12, car door; 13, pull rod. DETAILED DESCRIPTION
[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application usually described and marked in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.
[0028] The utility model discloses a semi-trailer compartment support frame which is mainly used in the scene when the vehicle is traveling.
[0029] Reference Figure 1-Figure 4 A semi-trailer carriage support frame comprises a bottom plate 1, a slide 2 is slidably connected inside the bottom plate 1, a carriage body 3 is fixedly connected to the top of the slide 2, and a shock absorbing mechanism 5 is arranged inside the bottom plate 1;
[0030] The shock absorbing mechanism 5 includes a fixed frame 501, two fixed frames 501 are fixedly connected inside the bottom plate 1 and located below the slide 2, and sliders 502 are symmetrically slidably connected to the outer sides of the fixed frames 501. First springs 503 are sleeved between the sliders 502 and the bottom plate 1 and located on the outer sides of the fixed frames 501. A support block 505 is fixedly connected to the bottom of the carriage body 3, and two inclined frames 504 are rotatably connected to the front and rear sides of the support block 505. Each two inclined frames 504 are designed in opposite directions, and one end of the inclined frame 504 away from the support block 505 is rotatably connected to the slider 502. A plurality of first columns 506 are fixedly connected inside the bottom plate 1, and a first support plate 508 is slidably connected inside the first column 506. A second spring 509 is fixedly connected inside the first column 506 and located below the first support plate 508, and a first telescopic frame 507 is slidably connected inside the first column 506. The bottom of the first telescopic frame 507 passes through the first column 506 and is fixedly connected to the first support plate 508.
[0031] Among them, two doors 12 are installed on one side of the carriage body 3, one of the doors 12 is fixedly connected to a circular column 701 on the outer side, and a rotating clamping rod 702 is rotatably connected to the outer side of the circular column 701, and the other door 12 is fixedly connected to a mounting seat 704 on the outer side, and a groove 705 is provided on the top of the mounting seat 704, and a fixing bolt 703 is threadedly connected to the inner side of the mounting seat 704, and the bottom end of the fixing bolt 703 passes through the groove 705 and is threadedly connected to the rotating clamping rod 702.
[0032] Among them, four limiting grooves 8 are opened inside the bottom plate 1, and the bottom of the sliding block 502 is fixedly connected to the limiting block 9, and the limiting block 9 is slidably connected to the limiting groove 8.
[0033] Among them, four connection blocks 10 are fixedly connected to the outer side of the carriage body 3, and threaded holes 11 are opened inside the connection blocks 10.
[0034] Among them, two buckle rings 4 are fixedly connected to both sides of the inner wall of the carriage body 3, and the outer side of the compartment door 12 is fixedly connected to the pull rod 13.
[0035] In this embodiment: when the vehicle is traveling, the carriage body 3 generates a downward pressure due to its own gravity, and then the first telescopic frame 507 presses the first support plate 508 downward, so that the first support plate 508 presses the second spring 509 to achieve preliminary shock absorption, and the remaining pressure is transmitted to the inclined frames 504 on both sides of the support block 505 through the support block 505, so that the inclined frames 504 move downward and push the slider 502 to slide, and then the slider 502 presses the first spring 503 to both sides, transferring the vertical pressure to the horizontal direction, and through the buffering of the first spring 503, the horizontal pressure is offset, which is beneficial to improve the shock absorption effect.
[0036] In the above technical solution, considering the problem of carriage friction, in order to solve such problem, the specific operations are as follows:
[0037] Reference Figure 1 and Figure 4 In a preferred embodiment, the top of the slider 502 is fixedly connected to the second column 601, the second telescopic frame 602 is slidably connected inside the second column 601, the bottom of the second telescopic frame 602 passes through the second column 601 and is fixedly connected to the second support plate 603, the second support plate 603 is slidably connected to the second column 601, the bottom of the second support plate 603 and located inside the second column 601 is fixedly connected to the third spring 604, and the top of the second telescopic frame 602 is installed with a roller 605, and the roller 605 is in contact with the bottom of the carriage body 3.
[0038] In this embodiment: by fitting the roller 605 with the bottom of the car body 3, when the car body 3 generates a downward pressure due to its own gravity, the support block 505 transfers the pressure to the inclined frame 504, causing the inclined frame 504 to move downward and push the slider 502 to slide, and then the slider 502 squeezes the first spring 503 to both sides, causing the car body 3 and the roller 605 to slide, which helps prevent the car body 3 from directly rubbing against the bottom plate 1 during vibration, resulting in a shortened service life of the car body 3.
[0039] Working principle: When in use, the cargo is installed inside the car body 3, and then the fixing bolt 703 is rotated, the rotating clamping rod 702 is pulled to insert into the inside of the groove 705, and then the fixing bolt 703 is continued to be rotated to pass through the groove 705 to fix the rotating clamping rod 702, thereby fixing the two doors 12. When the vehicle is driving, the car body 3 is affected by its own gravity and generates a downward pressure, and then the first telescopic frame 507 presses the first support plate 508 downward, so that the first support plate 508 squeezes the second spring 509 to achieve preliminary shock absorption, and the remaining pressure is transmitted to the inclined frames 504 on both sides of the support block 505 through the support block 505, so that the inclined frame 504 moves downward and pushes the slider 502 to slide, and then the slider 502 presses the first spring 503 to both sides, and the vertical pressure is transferred to the horizontal direction, and the buffering of the first spring 503 makes the horizontal pressure offset, which is beneficial to improve the shock absorption effect.
[0040] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this. The replacement can be a replacement of part of the structure, device, method step, or a complete technical solution. Equivalent replacement or change based on the technical solution of the utility model and its utility model concept should be included in the protection scope of the utility model.
Claims
1. A semi-trailer carriage support frame, comprising a bottom plate (1), characterized in that: The bottom plate (1) is slidably connected to a slide frame (2), the top of the slide frame (2) is fixedly connected to a carriage body (3), and a shock absorbing mechanism (5) is provided inside the bottom plate (1); The shock absorbing mechanism (5) comprises a fixing frame (501), two fixing frames (501) are fixedly connected inside the bottom plate (1) and below the slide frame (2), the outer sides of the fixing frames (501) are symmetrically slidably connected with sliders (502), first springs (503) are sleeved between the sliders (502) and the bottom plate (1) and on the outer sides of the fixing frames (501), a supporting block (505) is fixedly connected at the bottom of the carriage body (3), and two inclined frames (504) are rotatably connected to the front and rear sides of the supporting block (505), and each of the two inclined frames (504) is designed in opposite directions. The ends of the inclined frame (504) away from the support block (505) are rotatably connected to the slider (502); a plurality of first columns (506) are fixedly connected inside the bottom plate (1); a first support plate (508) is slidably connected inside the first columns (506); a second spring (509) is fixedly connected inside the first columns (506) and below the first support plate (508); a first telescopic frame (507) is slidably connected inside the first columns (506); the bottom of the first telescopic frame (507) passes through the first columns (506) and is fixedly connected to the first support plate (508).
2. A semi-trailer compartment support frame according to claim 1, characterized in that: The top of the slider (502) is fixedly connected to a second column (601), the interior of the second column (601) is slidably connected to a second telescopic frame (602), the bottom of the second telescopic frame (602) passes through the second column (601) and is fixedly connected to a second support plate (603), the second support plate (603) is slidably connected to the second column (601), the bottom of the second support plate (603) and located inside the second column (601) is fixedly connected to a third spring (604), the top of the second telescopic frame (602) is installed with a roller (605), and the roller (605) is in contact with the bottom of the carriage body (3).
3. A semi-trailer compartment support frame according to claim 1, characterized in that: Two doors (12) are installed on one side of the carriage body (3), wherein a circular column (701) is fixedly connected to the outer side of one of the doors (12), and a rotating clamping rod (702) is rotatably connected to the outer side of the circular column (701); and a mounting seat (704) is fixedly connected to the outer side of the other door (12), and a groove (705) is provided on the top of the mounting seat (704), and a fixing bolt (703) is threadedly connected to the inner side of the mounting seat (704), and the bottom end of the fixing bolt (703) passes through the groove (705) and is threadedly connected to the rotating clamping rod (702).
4. A semi-trailer compartment support frame according to claim 1, characterized in that: Four limiting grooves (8) are provided inside the bottom plate (1), and the bottom of the sliding block (502) is fixedly connected to a limiting block (9), and the limiting block (9) is slidably connected to the limiting grooves (8).
5. A semi-trailer compartment support frame according to claim 1, characterized in that: Four connection blocks (10) are fixedly connected to the outer side of the carriage body (3), and threaded holes (11) are provided inside the connection blocks (10).
6. A semi-trailer compartment support frame according to claim 3, characterized in that: Two buckle rings (4) are fixedly connected to both sides of the inner wall of the carriage body (3), and a pull rod (13) is fixedly connected to the outer side of the carriage door (12).