A shock-absorbing seat for a loader

Abstract

The present invention relates to the technical field of loaders, and in particular to a shock-absorbing seat for loaders. The present invention provides a shock-absorbing seat for loaders that can protect an operator when the loader rolls over. A shock-absorbing seat for a loader includes a fixing frame, a seat, and a buffer spring. The upper portion of the fixing frame is slidably connected to the seat. Buffer springs are connected between the front and rear sides of the seat and the fixing frame, which are both symmetrical. The buffer springs are wound around the seat. The seat also includes a supporting mechanism and a fixing mechanism. The supporting mechanism is provided on the rear side of the fixing frame, and the fixing mechanism is provided on the seat. The present invention prevents deformation of the cab and serious injuries to the operator by moving the supporting frame upward to support the inner top wall of the cab. At the same time, it rotates through the fixing parts to block the front side of the operator when the loader rolls over, preventing the operator from being thrown outward, thereby improving safety.

Description

Technical Field

[0001] The present invention relates to the technical field of loaders, and particularly to a shock-absorbing seat for a loader. Background Art

[0002] A loader belongs to an earthwork construction machine. When people use a loader for work, in order to attenuate the vibrations caused by road unevenness and working conditions, a shock-absorbing seat is usually installed in the cab of the loader.

[0003] A patent with the patent publication number CN114394042A discloses a shock-absorbing seat for a wheel loader cab, including a seat board and a bottom board. The seat board is arranged above the bottom board through an elastic support mechanism, and the elastic support mechanism is used for shock-absorbing support of the seat board. A backrest is arranged at the rear side of the seat board, and a seat cushion is arranged at the top of the seat board. When the shock-absorbing seat for the wheel loader cab of this patent is in use, the seat cushion will absorb shocks for the operator, so that the comfort of the operator can be improved. However, during the use of the loader of this patent, when the loader overturns sideways, it is difficult for the shock-absorbing seat for the wheel loader cab of this patent to take protective measures for the operator. The cab of the loader is easily squeezed and deformed, and then the operator in the cab is seriously injured. Even the operator in the cab is easily thrown outwards, resulting in poor safety and potential safety hazards.

[0004] In view of the above disadvantages, we specifically design a shock-absorbing seat for a loader that can protect the operator when the loader overturns. Summary of the Invention

[0005] In order to overcome the disadvantages that the shock-absorbing seat of the existing technology loader is difficult to protect the operator and has low safety when the loader overturns, the present invention provides a shock-absorbing seat for a loader that can protect the operator when the loader overturns.

[0006] A shock-absorbing seat for a loader includes a fixing frame, a seat, and buffer springs. The seat is slidably connected to the upper part of the fixing frame. Buffer springs are connected between the left and right sides of the front and rear sides of the seat and the fixing frame respectively, and the buffer springs are wound around the seat. A support mechanism and a fixing mechanism are further included. The support mechanism is arranged at the rear side of the fixing frame, and the fixing mechanism is arranged on the seat.

[0007] In one of the embodiments, the support mechanism includes a horizontal detector, an electric push rod, a support frame, a telescopic member, and a support plate. The support plate is connected to the rear side of the fixing frame. The electric push rod is connected to the front upper side of the support plate. The upper side of the telescopic rod of the electric push rod is connected to the support frame. The horizontal detector is connected to the rear upper side of the support plate. The horizontal detector is electrically connected to the electric push rod. Telescopic members are connected to the left and right parts of the upper side of the fixing frame, and the inner sides of the upper parts of the telescopic members are connected to the outer side of the support frame.

[0008] In one embodiment, the fixing mechanism includes an extrusion member, a guide rod, a fixing member, a space cam, a first pin and a tension spring. The left and right sides of the lower rear part of the seat are connected to the guide rods, the upper parts of the guide rods are rotatably connected to the space cams, the lower rear part of the space cams are provided with slots, the upper sides of the space cams are connected to fixing members, the outer sides of the upper parts of the guide rods are slidably connected to the first pins, tension springs are connected between the first pins and the guide rods, the tension springs are wound on the first pins, the upper side of the first pins is supported by the lower side of the space cams, the left and right sides of the upper rear part of the support frame are connected to the extrusion members, and the extrusion members are extruded and fitted with the space cams.

[0009] In one embodiment, it also includes a limiting mechanism, which includes an extrusion frame, a sliding member, a guide frame, a limiting member, a pressure spring and a right-angled triangle block. The left and right sides of the front of the support frame are connected to the extrusion frame, and the outer sides of the extrusion frame are acute-angled slopes. The left and right parts of the front upper side of the fixed frame are connected to the guide frame, and the front upper side of the guide frame is laterally connected to a plurality of right-angled triangle blocks. The middle part of the guide frame is slidably connected to the sliding member, and the lower part of the sliding member is slidably connected to the limiting member. A pressure spring is connected between the limiting member and the inner side of the lower part of the adjacent sliding member, and the pressure spring is wound on the limiting member. A limiting assembly is also provided at the lower part of the sliding member, and the limiting assembly is located below the limiting member.

[0010] In one embodiment, the limiting assembly includes a moving rod and a return spring. The lower part of the sliding member is slidably connected to the moving rod. The moving rod is located below the limiting member, and the moving rod is squeezed together with the adjacent right-angle triangle block. A return spring is connected between the upper side of the moving rod and the lower part of the sliding member, and the return spring is wound around the lower part of the sliding member.

[0011] In one embodiment, a shielding mechanism is also included, which includes a shielding cloth, a torsion spring, a connecting frame, a second latch, a linear spring, a winding rod and a connecting piece. The left and right parts and the front and rear parts of the support frame are rotatably connected to the winding rod, a torsion spring is connected between the winding rod and the support frame, the torsion springs are wound on the winding rod, and a shielding cloth is wound on the winding rod, and the lower side of the shielding cloth is connected to the connecting piece, the middle and upper part of the fixed frame is connected, the rear side of the connecting frame is connected to the lower side of the rear connecting piece, the left and right parts and the front of the upper side of the connecting frame are slidably connected to the second latch, the second latch is inserted into the lower part of the adjacent connecting frame, a linear spring is connected between the second latch and the connecting frame, and the linear spring is wound on the second latch.

[0012] In one embodiment, an oxygen supply mechanism is also included, which includes an oxygen supplier, a gas hose, a light-emitting component and a plastic buckle. The front side of the right inner wall of the support frame is connected to the oxygen supplier, the front side of the oxygen supplier is connected to the gas hose, the gas hose and the oxygen supplier are connected, the left part of the gas hose is connected to the light-emitting component, the left and right parts of the front wall of the support frame are connected to plastic buckles, and the front wall of the gas hose is clamped between the two plastic buckles.

[0013] In one embodiment, a reminder mechanism is also included, which includes a speaker, a button, a pressing plate and a support member. The support member is connected to the outer shell of the electric push rod, and the left and right parts of the upper side of the support member are connected to the speakers. The upper side of the support member is connected to the button, and the button and the speaker are electrically connected. The pressing plate is connected to the rear side of the support frame, and the pressing plate has pressed the button.

[0014] The beneficial effects of the present invention are as follows: 1. The present invention prevents deformation of the cab and serious injury to the operator by moving the support frame upward to support the inner top wall of the cab. At the same time, the fixing parts are rotated to block the front of the operator when the loader rolls over, preventing the operator from being thrown outward, thereby improving safety.

[0015] 2. The present invention can reinforce the fixing frame when the loader rolls over by moving the limiting member outward, thereby preventing the fixing frame from separating from the loader, thereby improving the protection effect.

[0016] 3. The present invention can protect the operator on the seat when the loader rolls over by pulling open the shielding cloth, preventing the operator from being hit by objects, thereby improving the safety of the operator.

[0017] 4. The present invention can provide oxygen to the operator when the operator falls into the quagmire through the cooperation between the oxygen supply device and the gas transmission hose, thereby preventing the operator from lacking oxygen and thus enhancing the protective function.

[0018] 5. The present invention controls the horn to emit a sound through a button, so that people around can be called for help when the loader rolls over during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure from the first viewing angle of the present invention.

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure from a second viewing angle of the present invention.

[0021] Figure 3 It is a partial three-dimensional structural schematic diagram of the present invention.

[0022] Figure 4 This is a schematic diagram of the three-dimensional structure of the support mechanism of the present invention from a first perspective.

[0023] Figure 5 This is a schematic diagram of the three-dimensional structure of the second perspective of the support mechanism of the present invention.

[0024] Figure 6 This is a schematic diagram of the three-dimensional structure of the fixing mechanism of the present invention.

[0025] Figure 7 This is a partial schematic diagram of the three-dimensional structure of the fixing mechanism of the present invention.

[0026] Figure 8 This is a schematic diagram of the three-dimensional structure of the limiting mechanism of the present invention.

[0027] Figure 9 This is a partial schematic diagram of the three-dimensional structure of the limiting mechanism of the present invention.

[0028] Figure 10 This is a schematic diagram of the three-dimensional structure of the sliding member of the present invention.

[0029] Figure 11 This is the first schematic diagram of the three-dimensional structure of the shielding mechanism of the present invention.

[0030] Figure 12 This is the second schematic diagram of the three-dimensional structure of the shielding mechanism of the present invention.

[0031] Figure 13 This is the first partial schematic diagram of the three-dimensional structure of the shielding mechanism of the present invention.

[0032] Figure 14 This is the second partial schematic diagram of the three-dimensional structure of the shielding mechanism of the present invention.

[0033] Figure 15 This is the first schematic diagram of the three-dimensional structure of the oxygen supply mechanism of the present invention.

[0034] Figure 16 This is the second schematic diagram of the three-dimensional structure of the oxygen supply mechanism of the present invention.

[0035] Figure 17 This is a schematic diagram of the three-dimensional structure of the reminder mechanism of the present invention.

[0036] The labels in the figure are: 1 - fixed frame, 2 - seat, 21 - buffer spring, 3 - support mechanism, 31 - horizontal detector, 32 - electric push rod, 33 - support frame, 34 - telescopic member, 35 - support plate, 4 - fixing mechanism, 41 - extrusion member, 42 - guide rod, 43 - fixing member, 44 - spatial cam, 45 - first bolt, 46 - tension spring, 5 - limiting mechanism, 51 - extrusion frame, 52 - sliding member, 53 - guide frame, 54 - limiting member, 55 - moving rod, 56 - pressure spring, 57 - return spring, 58 - right-angled triangular block, 6 - shielding mechanism, 61 - shielding cloth, 62 - torsion spring, 63 - connecting frame, 64 - second bolt, 65 - linear spring, 66 - winding rod, 67 - connecting member, 7 - oxygen supply mechanism, 71 - oxygen supply device, 72 - gas transmission hose, 73 - light-emitting member, 74 - plastic buckle, 8 - reminder mechanism, 81 - horn, 82 - button, 83 - pressing plate, 84 - support member. Detailed implementation mode

[0037] The present invention will be further described below in conjunction with the embodiments shown in the accompanying drawings.

[0038] Embodiment 1

[0039] A shock-absorbing seat for a loader, as Figure 1 、 Figure 2 and Figure 3 shown, includes a fixed frame 1, a seat 2, buffer springs 21, a support mechanism 3 and a fixing mechanism 4. The seat 2 is slidably connected to the upper part of the fixed frame 1. The number of buffer springs 21 is four. The four buffer springs 21 are respectively connected between the front, rear, left and right sides of the seat 2 and the fixed frame 1. The buffer springs 21 are all wound around the seat 2. A support mechanism 3 is provided at the rear side of the fixed frame 1, and a fixing mechanism 4 is provided on the seat 2. When the loader rolls over, the fixing mechanism 4 can prevent the operator from being thrown outwards.

[0040] As Figure 1 、 Figure 4 and Figure 5 shown, the support mechanism 3 includes a horizontal detector 31, an electric push rod 32, a support frame 33, telescopic members 34 and a support plate 35. The support plate 35 is connected to the rear side of the fixed frame 1. The electric push rod 32 is connected to the upper front side of the support plate 35. The support frame 33 is connected to the upper side of the telescopic rod of the electric push rod 32. The horizontal detector 31 is connected to the upper rear side of the support plate 35. The horizontal detector 31 and the electric push rod 32 are electrically connected. The number of telescopic members 34 is two. The two telescopic members 34 are respectively fixedly connected to the left and right parts of the upper side of the fixed frame 1. The inner sides of the upper parts of the telescopic members 34 are all connected to the outer side of the support frame 33.

[0041] As Figure 1 、 Figure 6 and Figure 7As shown, the fixing mechanism 4 includes a pressing member 41, a guide rod 42, a fixing member 43, a spatial cam 44, a first bolt 45 and a tension spring 46. The number of guide rods 42 is two, and the two guide rods 42 are respectively fixedly connected to the left and right sides of the lower rear part of the seat 2. The number of spatial cams 44 is two, and the two spatial cams 44 are respectively rotatably connected to the upper parts of the guide rods 42. Slots are formed in the lower rear parts of the spatial cams 44. The number of fixing members 43 is two, and the two fixing members 43 are respectively connected to the upper sides of the spatial cams 44. First bolts 45 are respectively slidably connected to the outer sides of the upper parts of the guide rods 42. The number of tension springs 46 is two, and the two tension springs 46 are respectively connected between the first bolts 45 and the guide rods 42. The tension springs 46 are wound around the first bolts 45. The upper sides of the first bolts 45 are abutted by the lower sides of the spatial cams 44. The number of pressing members 41 is two, and the two pressing members 41 are respectively connected to the left and right parts of the upper rear side of the support frame 33. The pressing members 41 are in pressing cooperation with the spatial cams 44.

[0042] Initially, the tension spring 46 is in a tensioned state. When the shock-absorbing seat 2 for a loader is used, the fixing frame 1 is first installed in the cab of the loader, and then people can sit on the seat 2 to operate the loader to work. When the loader is working, the seat 2 will vibrate up and down, and the buffer spring 21 will deform adaptively, which can attenuate the vibration caused by road unevenness and working conditions and improve the operator's comfort when working. Subsequently, when the loader is working, if the loader suddenly rolls over, the level detector 31 will detect that the loader has tilted violently. At this time, the level detector 31 will turn on the electric push rod 32, causing the telescopic rod of the electric push rod 32 to extend, and then drive the support frame 33 to move upward, so that the support The frame 33 is against the inner top wall of the cab, and the telescopic member 34 is extended accordingly, which can prevent the top of the cab from being deformed during the rollover of the loader, thereby preventing the operator in the cab from being seriously injured. At the same time, when the support frame 33 moves upward, the support frame 33 will also drive the extrusion member 41 to move upward. When the extrusion member 41 moves to contact the space cam 44, the extrusion member 41 will drive the space cam 44 to drive the fixing member 43 to rotate, so that the fixing member 43 blocks the front of the operator, and then when the extrusion member 41 continues to move upward away from the space cam 44, the space cam 44 will stop rotating. In this way, the operator can be prevented from being thrown forward during the rollover of the loader, thereby further improving the safety of the operator. When the space cam 44 rotates, the lower side of the space cam 44 no longer squeezes the first latch 45. When the first latch 45 is aligned with the slot on the space cam 44, under the action of the tension spring 46, the first latch 45 moves upward and inserts into the slot on the space cam 44. In this way, the rotated space cam 44 can be fixed, thereby improving the stability of the space cam 44 after rotation. Subsequently, when the operator is rescued, he manually pulls the first latch 45 downward from the space cam 44, and then controls the telescopic rod of the electric push rod 32 to retract, so that the telescopic rod of the electric push rod 32 drives the support frame 33 to move downward, and then the telescopic member 34 retracts. At the same time, when the support frame 33 moves downward, the support frame 33 also drives the extrusion member 41 to move downward. When the extrusion piece 41 moves downward and contacts the space cam 44, the space cam 44 will drive the fixing piece 43 to rotate in the opposite direction. Then, when the extrusion piece 41 moves downward and away from the space cam 44, the space cam 44 will stop rotating in the opposite direction. When the space cam 44 is reversed and reset, people can release the first latch 45. At this time, the first latch 45 will be pressed by the lower side of the space cam 44, and then the tension spring 46 is in a stretched state. When people want to rotate the fixing piece 43 in the opposite direction during the rescue process, they first manually pull the first latch 45 downward, and then directly manually rotate the fixing piece 43 and the space cam 44 in the opposite direction. This will not affect people's rescue of the operator. In summary, the operator can be protected during the rollover of the loader.Thus, the safety during people's use is improved.

[0043] Embodiment 2

[0044] Based on Embodiment 1, as Figure 1 、 Figure 8 、 Figure 9 and Figure 10 shown, it further includes a limiting mechanism 5. The limiting mechanism 5 includes a pressing frame 51, a sliding member 52, a guiding frame 53, a limiting member 54, a compression spring 56 and a right-angled triangular block 58. The number of pressing frames 51 is two, and the two pressing frames 51 are respectively fixedly connected to the left and right sides of the front part of the support frame 33. The outer sides of the pressing frames 51 are inclined planes with acute angles. The number of guiding frames 53 is two, and the two guiding frames 53 are respectively fixedly connected to the left and right parts of the upper front side of the fixed frame 1. A plurality of right-angled triangular blocks 58 are horizontally connected to the upper front sides of the guiding frames 53. The number of sliding members 52 is two, and the two sliding members 52 are respectively slidably connected to the middle parts of the guiding frames 53. The lower parts of the sliding members 52 are respectively slidably connected with limiting members 54. The number of compression springs 56 is two, and the two compression springs 56 are respectively connected between the limiting members 54 and the inner sides of the lower parts of the adjacent sliding members 52. The compression springs 56 are all wound around the limiting members 54. A limiting component is also arranged at the lower part of the sliding member 52, and the limiting component is located below the limiting member 54.

[0045] As Figure 9 shown, the limiting component includes a moving rod 55 and a return spring 57. The number of moving rods 55 is two, and the two moving rods 55 are respectively slidably connected to the lower parts of the sliding members 52. The moving rods 55 are all located below the limiting members 54, and the moving rods 55 are in pressing cooperation with the adjacent right-angled triangular blocks 58. The number of return springs 57 is two, and the two return springs 57 are respectively connected between the upper sides of the moving rods 55 and the lower parts of the sliding members 52. The return springs 57 are all wound around the lower parts of the sliding members 52.

[0046] When the support frame 33 moves upward, the support frame 33 will also drive the extrusion frame 51 to move upward. At this time, the extrusion frame 51 will extrude the sliding member 52 outward, and then drive the limiting member 54 to move outward, so that the outer side of the limiting member 54 abuts against the inner wall of the cab. And when the outer side of the limiting member 54 abuts against the inner wall of the cab, when the sliding member 52 still continues to move outward, the compression spring 56 will be stretched, thus not affecting the outward movement stroke of the sliding member 52. In this way, when the transfer machine overturns, the stability of the fixed frame 1 can be improved, preventing loosening between the fixed frame 1 and the loader. At the same time, when the sliding member 52 moves outward, the sliding member 52 will also drive the moving rod 55 to move outward. Under the extrusion of the right-angled triangular block 58, the moving rod 55 will repeatedly move up and down, and then the reset spring 57 will undergo an adaptive deformation. Subsequently, when the sliding member 52 and the moving rod 55 move to the destination, under the resistance of the outer side of the right-angled triangular block 58, the sliding member 52 and the moving rod 55 will not move inward. Then, when the operator is rescued and the support frame 33 moves downward, the support frame 33 will also drive the extrusion frame 51 to move downward. Then manually pull the moving rod 55 upward, and then manually move the sliding member 52, the limiting member 54 and the moving rod 55 inward. At this time, the compression spring 56 will recover. When the sliding member 52 moves inward and resets, release the moving rod 55. At this time, the moving rod 55 will automatically move downward. In summary, when the transfer machine overturns, the fixed frame 1 can be strengthened.

[0047] As Figure 1 、 Figure 11 、 Figure 12 、 Figure 13 and Figure 14 shown, it further includes a shielding mechanism 6. The shielding mechanism 6 includes a shielding cloth 61, a torsion spring 62, a connecting frame 63, a second bolt 64, a linear spring 65, a winding rod 66 and a connecting member 67. The number of winding rods 66 is four, and the four winding rods 66 are respectively rotatably connected to the left and right parts and the front and rear parts of the support frame 33. The number of torsion springs 62 is four, and the four torsion springs 62 are respectively connected between the winding rods 66 and the support frame 33. The torsion springs 62 are all wound around the winding rods 66. The number of shielding cloths 61 is four, and the four shielding cloths 61 are respectively wound around the winding rods 66. The number of connecting members 67 is four, and the four connecting members 67 are respectively connected to the lower sides of the shielding cloths 61. A connecting frame 63 is connected to the middle and upper part of the fixed frame 1. The rear side of the connecting frame 63 is connected to the lower side of the rear connecting member 67. The number of second bolts 64 is three, and the three second bolts 64 are respectively slidably connected to the left and right parts and the front part of the upper side of the connecting frame 63. The second bolts 64 are all inserted into the lower part of the adjacent connecting frame 63. The number of linear springs 65 is three, and the three linear springs 65 are respectively connected between the second bolts 64 and the connecting frame 63 and are all wound around the second bolts 64.

[0048] When the support frame 33 moves upward, the support frame 33 will also drive the winding rod 66 to move upward. At this time, the shielding cloth 61 will be pulled open, and then the winding rod 66 rotates, and the torsion spring 62 is twisted. In this way, the operator on the seat 2 can be protected. Subsequently, when the operator comes out of the cab, first manually pull the second bolt 64 outward, and then the linear spring 65 is stretched. When the second bolt 64 moves outward away from the adjacent connecting member 67, under the action of the torsion springs 62 on the front side and the left and right sides, the winding rods 66 on the front side and the left and right sides will rotate in the reverse direction, and then the shielding cloth 61 on the front side and the left and right sides will be wound up. Subsequently, the connecting members 67 on the front and rear sides and the front side are pulled upward. After the shielding cloth 61 is wound up, people can release the second bolt 64. Under the action of the linear spring 65, the second bolt 64 moves inward to reset. Subsequently, the operator can come out of the cab. After the operator comes out of the cab, before the support frame 33 moves downward, first manually pull the second bolt 64 outward. Subsequently, when the support frame 33 drives the winding rod 66 to move downward, since the shielding cloth 61 on the rear side is no longer pulled out, under the action of the torsion spring 62 on the rear side, the winding rod 66 on the rear side will rotate in the reverse direction, and then the shielding cloth 61 on the rear side will be wound up. Subsequently, when the connecting members 67 on the front and rear sides and the front side move to the inner side of the second bolt 64, people can release the second bolt 64. At this time, the second bolt 64 will automatically move inward to block the lower parts of the connecting members 67 on the front side and the left and right sides. In summary, the protection effect on the operator can be enhanced.

[0049] As Figure 2 , Figure 15 and Figure 16 shown, it further includes an oxygen supply mechanism 7. The oxygen supply mechanism 7 includes an oxygen supply device 71, an air delivery hose 72, a light-emitting member 73 and plastic buckles 74. The oxygen supply device 71 is connected to the front side of the inner right wall of the support frame 33. The air delivery hose 72 is connected to the front side of the oxygen supply device 71. The air delivery hose 72 is communicated with the oxygen supply device 71. The light-emitting member 73 is connected to the left part of the air delivery hose 72. The number of plastic buckles 74 is two. The two plastic buckles 74 are respectively fixed to the left and right parts of the inner front wall of the support frame 33. The front wall of the air delivery hose 72 is clamped between the two plastic buckles 74.

[0050] When the loading vehicle overturns and the operator gets stuck in the mud, in order to prevent the operator from lacking oxygen, the oxygen supply mechanism 7 can be used. First, hold the left part of the air delivery hose 72 by hand according to the bright light of the light-emitting part 73, then manually pull the air delivery hose 72 off the plastic buckle 74, and then manually insert the left part of the air delivery hose 72 into the nostril and turn on the oxygen supply device 71. At this time, the oxygen in the oxygen supply device 71 will enter the human nostril through the air delivery hose 72. After the operator is rescued, turn off the oxygen supply device 71, then manually pull the air delivery hose 72 out of the operator's nostril, and manually snap the air delivery hose 72 back between the two plastic buckles 74. In summary, oxygen can be provided to the operator when the operator gets stuck in the mud.

[0051] As Figure 2 and Figure 17 shown, it further includes a reminder mechanism 8. The reminder mechanism 8 includes a horn 81, a button 82, a pressing plate 83 and a support member 84. The support member 84 is connected to the outer shell of the electric push rod 32. Horns 81 are connected to the left and right parts on the upper side of the support member 84. The button 82 is connected to the upper middle part of the support member 84. The button 82 and the horn 81 are electrically connected. The pressing plate 83 is connected to the rear middle part of the support frame 33, and the pressing plate 83 presses the button 82.

[0052] When the loading vehicle overturns and the support frame 33 moves upward, the support frame 33 will also drive the pressing plate 83 to move upward. When the pressing plate 83 moves upward and no longer presses the button 82, the button 82 will control the horn 81 to make a sound, so as to call for help to the people around. Subsequently, when the support frame 33 drives the pressing plate 83 to move downward and the pressing plate 83 presses the button 82 again, the button 82 will control the horn 81 to stop making a sound. In summary, it can automatically call for help to the people around when the loading vehicle overturns.

[0053] The above embodiments are only the preferred embodiments of the present invention and are not used to limit the scope of implementation of the present invention. Therefore, all equivalent changes made according to the content described in the claims of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A shock-absorbing seat for a loader, comprising a fixed frame (1), a seat (2) and buffer springs (21). The upper part of the fixed frame (1) is slidably connected with the seat (2). Buffer springs (21) are connected between the left and right sides of the front and rear of the seat (2) and the fixed frame (1) symmetrically. The buffer springs (21) are all wound around the seat (2), and it is characterized in that: It also includes a support mechanism (3) and a fixing mechanism (4), wherein the support mechanism (3) is provided on the rear side of the fixing frame (1), and the fixing mechanism (4) is provided on the seat (2); The support mechanism (3) includes a level detector (31), an electric push rod (32), a support frame (33), a telescopic member (34) and a support plate (35). The rear side of the fixed frame (1) is connected to the support plate (35). The front upper side of the support plate (35) is connected to the electric push rod (32). The upper side of the telescopic rod of the electric push rod (32) is connected to the support frame (33). The rear upper side of the support plate (35) is connected to the level detector (31). The level detector (31) and the electric push rod (32) are electrically connected. The left and right upper parts of the fixed frame (1) are both connected to the telescopic member (34). The inner side of the upper part of the telescopic member (34) is connected to the outer side of the support frame (33). The fixing mechanism (4) includes an extrusion member (41), a guide rod (42), a fixing member (43), a space cam (44), a first latch (45) and a tension spring (46). The left and right sides of the lower rear portion of the seat (2) are connected to the guide rod (42). The upper portion of the guide rod (42) is rotatably connected to the space cam (44). The lower rear portion of the space cam (44) is provided with a slot. The upper side of the space cam (44) is connected to the fixing member (43). The outer side of the upper portion of the guide rod (42) is slidably connected to the first latch (45). A tension spring (46) is connected between the first latch (45) and the guide rod (42). The tension spring (46) is wound around the first latch (45). The upper side of the first latch (45) is supported by the lower side of the space cam (44). The left and right sides of the upper rear portion of the support frame (33) are connected to the extrusion member (41). The extrusion member (41) is extruded and matched with the space cam (44).

2. The shock-absorbing seat for a loader according to claim 1, characterized in that: The invention also includes a limiting mechanism (5), which includes an extrusion frame (51), a sliding member (52), a guide frame (53), a limiting member (54), a pressure spring (56) and a right-angled triangle block (58). The left and right sides of the front of the support frame (33) are connected to the extrusion frame (51), and the outer sides of the extrusion frame (51) are all acute-angled inclined surfaces. The left and right sides of the front upper side of the fixed frame (1) are connected to the guide frame (53), and the front upper side of the guide frame (53) is laterally connected to a plurality of right-angled triangle blocks (58). The middle part of the guide frame (53) is slidably connected to the sliding member (52), and the lower part of the sliding member (52) is slidably connected to the limiting member (54). A pressure spring (56) is connected between the limiting member (54) and the inner side of the lower part of the adjacent sliding member (52), and the pressure spring (56) is wound on the limiting member (54). The lower part of the sliding member (52) is also provided with a limiting component, and the limiting component is located below the limiting member (54).

3. The shock-absorbing seat for a loader according to claim 2, characterized in that: The limiting component includes a moving rod (55) and a return spring (57). The lower parts of the sliding members (52) are all slidably connected with the moving rods (55). The moving rods (55) are all located below the limiting members (54), and the moving rods (55) are in pressing fit with the adjacent right-angled triangular blocks (58). A return spring (57) is connected between the upper side of the moving rod (55) and the lower part of the sliding member (52), and the return springs (57) are all wound around the lower part of the sliding member (52).

4. The shock-absorbing seat for a loader according to claim 3, wherein: It further includes a shielding mechanism (6). The shielding mechanism (6) includes a shielding cloth (61), a torsion spring (62), a connecting frame (63), a second bolt (64), a linear spring (65), a winding rod (66) and a connecting member (67). The left and right parts and the front and rear parts of the support frame (33) are all rotatably connected with the winding rods (66). A torsion spring (62) is connected between the winding rod (66) and the support frame (33), and the torsion springs (62) are all wound around the winding rod (66). The shielding cloth (61) is wound around the winding rod (66). The lower sides of the shielding cloth (61) are all connected with the connecting member (67). The upper middle part of the fixed frame (1) is connected with the connecting frame (63). The rear side of the connecting frame (63) is connected with the lower side of the rear connecting member (67). The left and right parts and the front part of the upper side of the connecting frame (63) are all slidably connected with the second bolt (64). The second bolts (64) are all inserted into the lower part of the adjacent connecting frame (63). A linear spring (65) is connected between the second bolt (64) and the connecting frame (63), and the linear springs (65) are all wound around the second bolt (64).

5. The shock-absorbing seat for a loader according to claim 4, wherein: It further includes an oxygen supply mechanism (7). The oxygen supply mechanism (7) includes an oxygen supply device (71), an air delivery hose (72), a light-emitting member (73) and a plastic buckle (74). The front side of the inner right wall of the support frame (33) is connected with the oxygen supply device (71). The front side of the oxygen supply device (71) is connected with the air delivery hose (72). The air delivery hose (72) is communicated with the oxygen supply device (71). The left part of the air delivery hose (72) is connected with the light-emitting member (73). The left and right parts of the inner front wall of the support frame (33) are both connected with the plastic buckle (74). The front wall of the air delivery hose (72) is clamped between the two plastic buckles (74).

6. The shock-absorbing seat for a loader according to claim 5, wherein: It further includes a reminder mechanism (8). The reminder mechanism (8) includes a horn (81), a button (82), a pressing plate (83) and a support member (84). The support member (84) is connected to the outer shell of the electric push rod (32). The left and right parts of the upper side of the support member (84) are both connected with the horn (81). The middle upper side of the support member (84) is connected with the button (82). The button (82) is electrically connected with the horn (81). The middle rear side of the support frame (33) is connected with the pressing plate (83), and the pressing plate (83) presses the button (82).

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