Stable semitrailer chassis

Abstract

The utility model relates to the technical field of semitrailers, in particular to a stable semitrailer chassis which comprises a chassis body, a telescopic rod, a bottom plate, a mounting plate, a fixing plate, an elastic plate, a connecting plate and a spring, the mounting plate is detachably connected with the chassis body and located below the chassis body, and the fixing plate is fixedly connected with the mounting plate and located on the inner side of the mounting plate. The elastic plate is fixedly connected with the fixing plate and located below the fixing plate, the connecting plate is fixedly connected with the elastic plate and located below the elastic plate, and the spring is detachably connected with the fixing plate and located between the fixing plate and the connecting plate. When the sliding rod is pressed downwards, part of vibration can be absorbed, and meanwhile, the spring is compressed to absorb part of vibration, so that the cushioning effect is achieved, and the problem that the service life of the chassis is shortened due to the fact that the cushioning effect of the chassis of the semitrailer is poor is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of semi-trailers, in particular to a stable underframe of a semi-trailer. Background Art

[0002] The underframe of a semitrailer refers to the main supporting structure of the semitrailer, which is usually composed of crossbeams, longitudinal beams, connecting rods, etc., and is used to support the cargo and body of the semitrailer. In order to increase the bearing capacity of the underframe of the semitrailer, it is generally adopted to increase the height of the longitudinal beams to increase the strength of the longitudinal beams. Although this method can improve the bearing capacity of the underframe of the semitrailer, it increases the height of the semitrailer body. The higher the semitrailer body, the less stable it is, thereby increasing the risk of the semitrailer body rolling over, posing a serious safety hazard.

[0003] To solve the above problems, the prior art patent (CN209617260U) discloses a stable semi-trailer underframe, in which the first fixing seat and the second fixing seat are arranged as U-shaped plates, and a second weight-reducing through hole is opened on the first fixing seat, and a third weight-reducing through hole is opened on the second fixing seat, which not only increases the installation strength of the semi-trailer underframe, but also improves the stability and safety of the use of the semi-trailer underframe.

[0004] However, in the above-mentioned prior art, the shock absorbing effect of the underframe of the semi-trailer is relatively poor, which will shorten the service life of the underframe. Utility Model Content

[0005] The utility model aims to provide a stable underframe for a semitrailer, which solves the technical problem in the prior art that the underframe for a semitrailer has a poor shock-absorbing effect and shortens the service life of the underframe.

[0006] To achieve the above-mentioned purpose, the utility model adopts a stable semi-trailer underframe, including a frame body, a telescopic rod, a bottom plate and a shock-absorbing assembly, wherein the shock-absorbing assembly includes a mounting plate, a fixing plate, an elastic plate, a connecting plate, a spring and a fixing component, the frame body is detachably connected to the telescopic rod and is located above the telescopic rod, the bottom plate is detachably connected to the telescopic rod and is located below the telescopic rod, the mounting plate is detachably connected to the frame body and is located below the frame body, the fixing plate is fixedly connected to the mounting plate and is located on the inner side of the mounting plate, the elastic plate is fixedly connected to the fixing plate and is located below the fixing plate, the connecting plate is fixedly connected to the elastic plate and is located below the elastic plate, and the spring is detachably connected to the fixing plate and is located between the fixing plate and the connecting plate.

[0007] Among them, the shock-absorbing assembly also includes a connecting block, a rotating rod, a sliding rod and a buffer block. The connecting block is fixedly connected to the elastic plate and is located below the elastic plate. The rotating rod is fixedly connected to the connecting block and is located on the inner side of the connecting block. The sliding rod is rotatably connected to the rotating rod and wraps the rotating rod. The buffer block is slidably connected to the sliding rod and wraps the rotating rod.

[0008] Among them, the fixing component includes a longitudinal rod, a cross rod and a weight-reducing hole. The longitudinal rod is fixedly connected to the frame and is located on the inner side of the frame. The cross rod is fixedly connected to the longitudinal rod and is located on the inner side of the longitudinal rod. The weight-reducing hole is arranged on the surface of the cross rod and passes through the cross rod.

[0009] Among them, the fixing component also includes a second cross bar and a second shock-absorbing hole. The second cross bar is fixedly connected to the longitudinal bar and is located between the longitudinal bar and the frame. The second weight-reducing hole is arranged on the surface of the second cross bar and passes through the second cross bar.

[0010] Among them, the stable semi-trailer underframe also includes a fixing rod 1, a fixing rod 2 and a protective plate, the fixing rod 1 is fixedly connected to the frame body and is located on the outside of the frame body, the fixing rod 2 is fixedly connected to the fixing rod 1 and is located below the fixing rod 1, the protective plate is fixedly connected to the fixing rod 1 and is located below the fixing rod 1, and the inner side of the fixing rod 2 is fixedly connected to the protective plate 2.

[0011] The utility model discloses a stable underframe of a semi-trailer, the frame body is detachably connected to the telescopic rod and is located above the telescopic rod, the bottom plate is detachably connected to the telescopic rod and is located below the telescopic rod, the mounting plate is detachably connected to the frame body and is located below the frame body, the fixing plate is fixedly connected to the mounting plate and is located on the inner side of the fixing plate, the elastic plate is fixedly connected to the fixing plate and is located below the fixing plate, the connecting plate is fixedly connected to the elastic plate and is located below the elastic plate, the spring is detachably connected to the fixing plate and is located between the fixing plate and the connecting plate, when vibration occurs, the frame body moves toward the bottom plate, the elastic plate deforms and compresses the sliding rod, because the sliding rod is sealed with the buffer block, part of the vibration will be absorbed when the sliding rod is pressed down, and at the same time, the spring will be compressed and also absorb part of the vibration, thereby achieving the effect of shock absorption, and this method can effectively solve the problem that the shock absorption effect of the underframe of the semi-trailer is poor, which will lead to a shortened service life of the underframe. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

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

[0014] Figure 2 It is a front view of the first embodiment of the utility model.

[0015] Figure 3 It is a side view of the first embodiment of the utility model.

[0016] Figure 4 It is a structural schematic diagram of the second embodiment of the utility model.

[0017] 101-frame, 102-telescopic rod, 103-bottom plate, 104-mounting plate, 105-fixed plate, 106-elastic plate, 107-connecting plate, 108-spring, 109-connecting block, 110-rotating rod, 111-sliding rod, 112-buffer block, 113-longitudinal rod, 114-cross bar one, 115-weight reduction hole one, 116-cross bar two, 117-shock absorption hole two, 201-fixed rod one, 202-fixed rod two, 203-protective plate. DETAILED DESCRIPTION

[0018] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0019] The first embodiment of the present application is:

[0020] See also Figure 1 to Figure 3 ,in Figure 1 It is a structural schematic diagram of the first embodiment of the utility model. Figure 2 1 is a front view of the first embodiment of the utility model. Figure 3 It is a side view of the first embodiment of the utility model.

[0021] The utility model provides a stable underframe of a semitrailer, comprising a frame body 101, a telescopic rod 102, a bottom plate 103, a mounting plate 104, a fixing plate 105, an elastic plate 106, a connecting plate 107, a spring 108, a connecting block 109, a rotating rod 110, a sliding rod 111, a buffer block 112, a longitudinal rod 113, a cross bar 114, a weight-reducing hole 115, a cross bar 2 116 and a shock-absorbing hole 2 117. The above scheme solves the problem that the shock-absorbing effect of the underframe of the semitrailer in the prior art is poor, which will lead to a shortened service life of the underframe.

[0022] According to the present specific embodiment, the frame body 101 is detachably connected to the telescopic rod 102 and is located above the telescopic rod 102, the bottom plate 103 is detachably connected to the telescopic rod 102 and is located below the telescopic rod 102, the mounting plate 104 is detachably connected to the frame body 101 and is located below the frame body 101, the fixing plate 105 is fixedly connected to the mounting plate 104 and is located on the inner side of the mounting plate 104, the elastic plate 106 is fixedly connected to the fixing plate 105 and is located below the fixing plate 105, the connecting plate 107 is fixedly connected to the elastic plate 106 and is located below the elastic plate 106, the spring 108 is detachably connected to the fixing plate 105 and is located between the fixing plate 105 and the connecting plate 107, the mounting plate 104 connects the fixing plate 105 to the frame body 101, and when vibration occurs, the spring 108 will absorb part of the vibration to achieve the purpose of shock absorption.

[0023] Among them, the connecting block 109 is fixedly connected to the elastic plate 106 and is located below the elastic plate 106, the rotating rod 110 is fixedly connected to the connecting block 109 and is located on the inner side of the connecting block 109, the sliding rod 111 is rotationally connected to the rotating rod 110 and wraps the rotating rod 110, the buffer block 112 is slidingly connected to the sliding rod 111 and wraps the rotating rod 110, when the elastic plate 106 is deformed by vibration, the connecting block 109 and the rotating rod 110 are pressed down, and the rotating rod 110 presses down the sliding rod 111, and since the sliding rod 111 is sealed with the buffer block 112, part of the vibration will be absorbed when the sliding rod 111 is pressed down, thereby achieving the purpose of shock absorption.

[0024] Secondly, the longitudinal rod 113 is fixedly connected to the frame 101 and is located on the inner side of the frame 101. The cross bar 114 is fixedly connected to the longitudinal rod 113 and is located on the inner side of the longitudinal rod 113. The weight-reducing hole 115 is arranged on the surface of the cross bar 114 and penetrates the cross bar 114. The longitudinal rod 113 and the cross bar 114 increase the stability of the frame 101.

[0025] At the same time, the second cross bar 116 is fixedly connected to the longitudinal bar 113 and is located between the longitudinal bar 113 and the frame 101. The second weight-reducing hole is arranged on the surface of the second cross bar 116 and penetrates the second cross bar 116. The second cross bar 116 fixes the longitudinal bar 113 and increases the stability of the frame 101 at the same time.

[0026] A stable underframe of a semitrailer using the present embodiment is provided, by arranging a frame body 101, a telescopic rod 102, a bottom plate 103, a mounting plate 104, a fixing plate 105, an elastic plate 106, a connecting plate 107, a spring 108, a connecting block 109, a rotating rod 110, a sliding rod 111, a buffer block 112, a longitudinal rod 113, a cross bar 114, a weight reduction hole 115, a cross bar 2 116 and a shock absorbing hole 2 117, wherein the frame body 101 is detachably connected to the telescopic rod 102 and is located above the telescopic rod 102, the bottom plate 103 is detachably connected to the telescopic rod 102 and is located below the telescopic rod 102, the mounting plate 104 is detachably connected to the frame body 101 and is located below the frame body 101, the fixing plate 105 is fixedly connected to the mounting plate 104 and is located on the inner side of the mounting plate 104, the elastic plate 10 6 is fixedly connected to the fixing plate 105 and is located below the fixing plate 105. The connecting plate 107 is fixedly connected to the elastic plate 106 and is located below the elastic plate 106. The spring 108 is detachably connected to the fixing plate 105 and is located between the fixing plate 105 and the connecting plate 107. When vibration occurs, the spring 108 will absorb part of the vibration transmitted to the fixing plate 105. When the vibration causes the elastic plate 106 to deform, the connecting block 109 and the rotating rod 110 will be pressed down. The rotating rod 110 presses down the sliding rod 111. Since the sliding rod 111 is sealed with the buffer block 112, part of the vibration will be absorbed when the sliding rod 111 is pressed down, thereby achieving the purpose of shock absorption, thereby solving the technical problem that the shock absorption effect of the underframe of the semi-trailer is poor and the service life of the underframe is shortened.

[0027] The second embodiment of the present application is:

[0028] Based on the first embodiment, please refer to Figure 4 , Figure 4 It is a structural schematic diagram of the second embodiment of the utility model.

[0029] The utility model provides a stable underframe of a semi-trailer, which also includes a fixing rod 1 201, a fixing rod 202 and a protective plate 203. The above solution solves the problem of lack of protection below the stable underframe of the semi-trailer in the prior art.

[0030] Among them, the fixing rod 1 201 is fixedly connected to the frame 101 and is located on the outside of the frame 101, the fixing rod 202 is fixedly connected to the fixing rod 1 201 and is located below the fixing rod 1 201, the protective plate 203 is fixedly connected to the fixing rod 1 201 and is located below the fixing rod 1 201, and the inner side of the fixing rod 202 is fixedly connected to the protective plate 203, the fixing rod 1 201 and the fixing rod 2 202 fix the protective plate 203 to the outside of the base frame, thereby protecting the base frame.

[0031] A stable underframe of a semi-trailer using the present embodiment is provided with a fixing rod 1 201, a fixing rod 202 and a protective plate 203. The fixing rod 1 201 and the fixing rod 202 fix the protective plate 203 to the outside of the underframe. While protecting the underframe, the holes on the surface of the protective plate 203 can reduce wind resistance, thereby solving the problem of lack of protection below the stable underframe of the semi-trailer.

[0032] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the utility model.

Claims

1. A stable underframe of a semi-trailer, comprising a frame body, a telescopic rod and a bottom plate, wherein the frame body is detachably connected to the telescopic rod and is located above the telescopic rod, and the bottom plate is detachably connected to the telescopic rod and is located below the telescopic rod, characterized in that: It also includes a shock-absorbing assembly, which includes a mounting plate, a fixing plate, an elastic plate, a connecting plate, a spring and a fixing component. The mounting plate is detachably connected to the frame and is located below the frame. The fixing plate is fixedly connected to the mounting plate and is located on the inner side of the mounting plate. The elastic plate is fixedly connected to the fixing plate and is located below the fixing plate. The connecting plate is fixedly connected to the elastic plate and is located below the elastic plate. The spring is detachably connected to the fixing plate and is located between the fixing plate and the connecting plate.

2. The stable underframe of a semitrailer according to claim 1, characterized in that: The shock-absorbing assembly also includes a connecting block, a rotating rod, a sliding rod and a buffer block. The connecting block is fixedly connected to the elastic plate and is located below the elastic plate. The rotating rod is fixedly connected to the connecting block and is located on the inner side of the connecting block. The sliding rod is rotatably connected to the rotating rod and wraps the rotating rod. The buffer block is slidably connected to the sliding rod and wraps the rotating rod.

3. The stable underframe of a semitrailer according to claim 1, characterized in that: The fixing component includes a longitudinal rod, a transverse rod and a weight-reducing hole. The longitudinal rod is fixedly connected to the frame and is located on the inner side of the frame. The transverse rod is fixedly connected to the longitudinal rod and is located on the inner side of the longitudinal rod. The weight-reducing hole is arranged on the surface of the transverse rod and passes through the transverse rod.

4. The stable underframe of a semitrailer according to claim 3, characterized in that: The fixing component also includes a second crossbar and a second shock-absorbing hole. The second crossbar is fixedly connected to the longitudinal bar and is located between the longitudinal bar and the frame. The second weight-reducing hole is arranged on the surface of the second crossbar and passes through the second crossbar.

5. The stable semitrailer chassis according to claim 1, characterized in that: The stable semi-trailer underframe also includes a fixing rod 1, a fixing rod 2 and a protective plate. The fixing rod 1 is fixedly connected to the frame body and is located on the outside of the frame body. The fixing rod 2 is fixedly connected to the fixing rod 1 and is located below the fixing rod 1. The protective plate is fixedly connected to the fixing rod 1 and is located below the fixing rod 1, and the inner side of the fixing rod 2 is fixedly connected to the protective plate 2.

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