Lifting bridge mechanism and automobile

Abstract

The present invention discloses a lifting bridge mechanism and a car. The lifting bridge mechanism includes a support plate assembly, a lifting mechanism, a guide assembly and a lubricating member. The support plate assembly includes two support plates spaced apart and extending in the transverse direction. At least one of the two support plates can be movably arranged in the vertical direction. The movably arranged support plate is used to transmit and connect the vehicle axle. The lifting mechanism drives and connects the movably arranged support plate. The guide assembly includes a guide column and a guide rod that extend up and down and are movably matched. The guide column and the guide rod are arranged between the two support plates and are respectively connected to the two support plates. The lubricating member is connected to the guide tube or the guide rod to add lubricating oil between the guide column and the guide rod. In the technical solution provided by the present invention, by arranging the lubricating member on the guide assemblies of the two support plates, lubricating oil can be added to the guide column and the guide rod, reducing the resistance of the movably arranged support plate to move up and down, thereby ensuring that the vehicle axle does not deviate due to the change in resistance when moving.

Description

Technical Field

[0001] The present invention relates to the field of automobiles, and in particular to a lifting bridge mechanism and an automobile. Background Art

[0002] Lifting axle, as the name suggests, represents a vehicle axle that can be raised and lowered freely. After lifting, the axle tires can be lifted off the ground. The most common lifting axle is generally an auxiliary axle without driving force. The lifting axle has good economy. When heavily loaded, it can be lowered to bear the weight. When unloaded, the axle can be lifted. There is no friction resistance between the tires of the lifting axle and the ground, which can reduce fuel consumption.

[0003] The commonly used lifting axle mechanism currently lacks lubrication and structures that help with positioning. After long-term use, the position of the axle after lowering is inaccurate, causing the tires to not contact the ground or to be squeezed against the ground. When the tires are not in contact with the ground, they lose their load-bearing function. When the tires are squeezed against the ground, the friction of the vehicle will increase, causing great damage to the tires and increasing fuel consumption. Summary of the Invention

[0004] The main purpose of the present invention is to provide a lifting bridge mechanism, aiming to solve the problem that the existing lifting bridge mechanism lacks a lubrication structure.

[0005] To achieve the above objectives, the present invention proposes a lifting bridge mechanism, wherein the lifting bridge mechanism comprises:

[0006] A support plate assembly includes two support plates spaced apart from each other and extending laterally, at least one of the two support plates being movable in an upward and downward direction, the movable support plate being used for transmission connection with the axle, so that when the movable support plate moves up and down, the axle is driven to move up and down;

[0007] A lifting mechanism drives the movable support plate to move up and down;

[0008] A guide assembly, comprising a guide column and a guide rod extending up and down and movably arranged, wherein the guide column and the guide rod are arranged between the two support plates and are respectively connected to the two support plates; and

[0009] A lubricating member is connected to the guide tube or the guide rod to add lubricating oil between the guide tube column and the guide rod.

[0010] Optionally, the lubricating component is a grease nipple, which is used to be connected to a grease gun so as to add lubricating oil through the grease gun.

[0011] Optionally, the inner side surface of the guide tube column is concavely provided with a spiral groove extending from top to bottom;

[0012] The lubricating component is arranged on one side of the guide tube column and is connected to the upper end of the wire groove.

[0013] Optionally, a first positioning portion is provided in the middle of the guide rod, the first positioning portion includes a plurality of positioning rods arranged from top to bottom and coaxially arranged with the guide rod, the radius of the plurality of positioning rods is arranged to decrease from top to bottom, and an inclined surface transition is provided between two adjacent positioning rods;

[0014] A second positioning portion is recessed in the guide tube column and engages with the first positioning portion.

[0015] Optionally, the two pallets include a first pallet and a second pallet, the first pallet is used to be fixed between the two longitudinal beams, and the second pallet is movably arranged up and down, and the lifting mechanism includes a first airbag, which is arranged between the first pallet and the second pallet, and the first airbag is driven and connected to the second pallet.

[0016] Optionally, the lifting bridge mechanism further comprises two guide arms spaced apart in a transverse direction, the guide arms having a first end and a second end, the first ends of the two guide arms being respectively rotatably connected to the two longitudinal beams, and the second ends of the two guide arms being respectively transmission-connected to the two ends of the axle;

[0017] The lifting mechanism further includes a second airbag, one end of the second airbag is drivingly connected to the second end of the guide arm, and the other end of the second airbag is used to be connected to the longitudinal beam.

[0018] Optionally, elastic blocks are provided inside the first airbag and the second airbag.

[0019] Optionally, the lifting bridge mechanism further includes a wiping mechanism, and the wiping mechanism includes:

[0020] a wiping portion, which is expandable and contractible, and is disposed at one end of the opening of the guide column and surrounds the guide rod; and

[0021] The transmission part transmits and connects the movably arranged support plate and the wiping part, so that when the movably arranged support plate moves up and down to cause the guide rod to extend into the guide tube column, the wiping part contracts to wrap around the guide rod, so as to wipe the guide rod during the process of the guide rod extending into the guide tube column, and when the movably arranged support plate moves up and down to cause the guide rod to extend out of the guide tube column, the wiping part expands to not interfere with the guide rod.

[0022] Optionally, the wiping portion is arranged in two layers, including a coating layer and a cleaning layer arranged away from the opening of the guide tube column. The lubricating part is connected to the coating layer so that when the guide rod extends into the guide tube column, the guide rod is first cleaned by the cleaning layer, and then lubricating oil is applied to the cleaned area through the coating layer.

[0023] In addition, the present invention also provides a vehicle, which includes the lifting axle mechanism described above.

[0024] In the technical solution provided by the present invention, the lifting bridge mechanism can add lubricating oil to the guide tube column and the guide rod by arranging lubricating parts on the guide assemblies of the two support plates, thereby reducing the resistance of the movably arranged support plates to move up and down, thereby ensuring that the axle does not deviate due to changes in resistance when moving.

[0025] In the present invention, the lifting bridge mechanism is provided with a spiral wire groove extending from top to bottom on the inner side surface of the guide tube column, and the lubricating component is connected to the upper end of the wire groove. Lubricating oil can be added to the wire groove through the lubricating component, and the lubricating oil flows in the wire groove. During the relative movement of the guide tube column relative to the guide rod, the lubricating oil can be applied to the contact surface between the guide tube column and the guide rod, so that the lubricating oil covers the entire contact surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0027] Figure 1 A three-dimensional schematic diagram of an embodiment of a lifting bridge mechanism provided by the present invention;

[0028] Figure 2 for Figure 1 A three-dimensional schematic diagram of the lifting axle mechanism being installed on the longitudinal beam;

[0029] Figure 3 for Figure 1 A cutaway perspective schematic diagram of the guide column in FIG.

[0030] Figure 4 for Figure 1 A three-dimensional schematic diagram of the guide rod in FIG.

[0031] Figure 5 It is a three-dimensional schematic diagram of the wiping mechanism;

[0032] Figure 6is a three-dimensional schematic diagram of the wiping part;

[0033] Figure 7 Schematic diagram of the transmission unit.

[0034] Description of Figure Numbers:

[0035] 1. Pallet assembly; 2. Lifting mechanism; 3. Guide assembly; 4. Lubricating element; 5. Guide arm; 6. Wiping mechanism; 11. First pallet; 12. Second pallet; 21. First airbag; 22. Second airbag; 31. Guide column; 32. Guide rod; 61. Wiping part; 62. Transmission part; 311. Wire trough; 312. Second positioning part; 321. First positioning part; 3211. Positioning rod; 3212. Inclined surface.

[0036] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0038] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), such directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0039] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0040] At present, the commonly used lifting axle mechanism lacks lubrication and structures that help positioning. After long-term use, the position of the axle after lowering is inaccurate, causing the tires to not contact the ground or to be squeezed with the ground. When the tires are not in contact with the ground, they lose their load-bearing function. When the tires are squeezed with the ground, the friction of the vehicle will increase, causing great damage to the tires and increasing fuel consumption.

[0041] In order to solve the above problems, the present invention provides a lifting bridge mechanism. Figures 1 to 3 This is a specific embodiment of the lifting bridge mechanism provided by the present invention.

[0042] See also Figure 1 The lifting bridge mechanism includes a pallet assembly 1, a lifting mechanism 2, a guide assembly 3 and a lubricating part 4. The pallet assembly 1 includes two pallets spaced apart and extending laterally. At least one of the two pallets can be movably arranged in the up and down directions. The movably arranged pallet is used to transmit and connect the axle to drive the axle to move up and down when the movably arranged pallet moves up and down. The lifting mechanism 2 drives the movably connected pallet to drive the movably connected pallet to move up and down. The guide assembly 3 includes a guide column 31 and a guide rod 32 extending up and down and movably matched, and the guide column 31 and the guide rod 32 are arranged between the two pallets and are respectively connected to the two pallets. The lubricating part 4 is connected to the guide tube or the guide rod 32 to add lubricating oil between the guide column 31 and the guide rod 32.

[0043] In the technical solution provided by the present invention, the lifting bridge mechanism can add lubricating oil to the guide column 31 and the guide rod 32 by arranging lubricating parts 4 on the guide assemblies 3 of the two pallets, thereby reducing the resistance of the movably arranged pallets to move up and down, thereby ensuring that the axle does not deviate due to changes in resistance when moving.

[0044] The lubricating part 4 is a grease nipple, which is used to connect to a grease gun so as to add lubricating oil through the grease gun. It should be noted that there is no restriction on the connection method between the grease nipple and the guide tube column 31 or the guide rod 32. The grease nipple can be installed through one side of the guide tube column 31, or it can be installed on the support plate connected to the guide rod 32 and connected to the guide rod 32. As long as the grease nipple is connected to the grease gun, lubricating oil can be added between the guide tube column 31 and the guide rod 32 through the grease gun.

[0045] Further, see Figure 3The inner side surface of the guide column 31 is concavely provided with a spiral groove 311 extending from top to bottom. The lubricating component 4 is provided on one side of the guide column 31 and is connected to the upper end of the groove 311. Lubricating oil can be added to the groove 311 through the lubricating component 4, and then the lubricating oil flows along the groove 311 and spirally flows downward. When the guide column 31 moves up and down relative to the guide rod 32, the lubricating oil can be applied to the guide rod 32, and the lubricating oil can cover the contact surface between the guide column 31 and the guide rod 32.

[0046] See also Figure 4 In order to ensure that the axle can be accurately positioned during movement, a first positioning portion 321 is provided in the middle of the guide rod 32. The first positioning portion 321 includes a plurality of positioning rods 3211 arranged from top to bottom and coaxially arranged with the guide rod 32. The radius of the plurality of positioning rods 3211 decreases from top to bottom. An inclined surface 3212 is provided as a transition between two adjacent positioning rods 3211. A second positioning portion 312 is recessed in the guide column 31 and engages with the first positioning portion 321. When the guide rod 32 is combined with the guide column 31, the first positioning portion 321 can engage with the second positioning portion 312. By means of the multiple positioning rods 3211 coaxially arranged with the guide rod 32, the guide rod 32 or the guide column 31 can be laterally limited. By means of the inclined surface 3212, the contact area between the first positioning portion 321 and the second positioning portion 312 can be increased, and the guide rod 32 or the guide column 31 can be laterally and longitudinally limited, so that the position of the axle after the downward movement is accurately positioned to achieve the set stroke. It should be noted that the length of the multiple positioning rods 3211 and the inclination angle of the inclined surface 3212 are not limited here. By setting different inclination angles, the multiple inclined surfaces 3212 can have different limiting angles.

[0047] Further, see Figure 2 The two support plates include a first support plate 11 and a second support plate 12, the first support plate 11 is used to be fixed between the two longitudinal beams, and the second support plate 12 is movably arranged up and down, and the lifting mechanism includes a first airbag 21, the first airbag 21 is arranged between the first support plate 11 and the second support plate 12, the first airbag 21 is drivingly connected to the second support plate 12, the second support plate 12 is movably arranged and transmission-connected to the axle, the first airbag 21 is connected to the dryer, the one-way valve and the pressure regulating valve, and the air is taken out through the dryer, and the pressure regulating valve adjusts the air pressure, so that the first airbag 21 can be inflated and deflated. When the first airbag 21 is inflated, the second support plate 12 can be driven to move upward, thereby driving the axle to move upward.

[0048] See also Figure 2The lifting bridge mechanism also includes two guide arms 5 arranged at intervals along the transverse direction, and the guide arms 5 have a first end and a second end. The first ends of the two guide arms 5 are respectively used to be rotatably connected to the two longitudinal beams, and the second ends of the two guide arms 5 are respectively used to be transmission-connected to the two ends of the axle. The lifting mechanism also includes a second airbag 22, one end of the second airbag 22 is drivingly connected to the second end of the guide arm 5, and the other end of the second airbag 22 is used to be connected to the longitudinal beam. There are two second airbags 22, which are respectively connected to the two guide arms 5. When the second airbag 22 is inflated, it can drive the guide arm 5 to rotate downward, thereby driving the axle to descend.

[0049] The first airbag 21 and the second airbag 22 are used in conjunction with each other, and are respectively connected to the output port of a two-position three-way solenoid valve, and the input port of the two-position three-way solenoid valve is connected to a pressure regulating valve, the pressure regulating valve is connected to a one-way valve, and the one-way valve is connected to a desiccant. The two-position three-way solenoid valve can be used to control the inflation of the first airbag 21 or the second airbag 22. When the first airbag 21 is inflated and the second airbag 22 is deflated, the axle is driven to rise; when the first airbag 21 is deflated and the second airbag 22 is inflated, the axle is driven to descend.

[0050] Furthermore, elastic blocks are provided inside the first airbag 21 and the second airbag 22. By providing elastic blocks inside the first airbag 21 and the second airbag 22, when deflated, the elastic blocks can softly limit the first airbag 21 or the second airbag 22, thereby softly limiting the axle and reducing the impact force between the guide column 31 and the guide rod 32.

[0051] Since cars often transport goods over long distances, the auxiliary bridge is in the rising and falling states for a long time at a time, which makes the guide rod 32 exposed to the outside for a long time and easily accumulates dust. If not handled, dust will be brought into the guide column 31 during the process of the guide rod 32 extending into the guide column 31, which is difficult to clean and will increase friction.

[0052] See also Figure 5In order to clean the guide rod 32, the lifting bridge mechanism is further provided with a wiping mechanism 6, which includes a wiping portion 61 and a transmission portion 62. The wiping portion 61 can be expanded and contracted, and is arranged at one end of the opening of the guide column 31 and is arranged around the guide rod 32. The transmission portion 62 transmits and connects the movable support plate and the wiping portion 61, so that when the movable support plate moves up and down to make the guide rod 32 extend into the guide column 31, the wiping portion 61 contracts to wrap the guide rod 32, so as to wipe the guide rod 32 during the process of the guide rod 32 extending into the guide column 31, and clean the guide rod 32. The dust and dirt accumulated on the guide rod 32 are prevented from being brought into the guide tube column 31, so that when the movably arranged support plate moves up and down to extend the guide rod 32 out of the guide tube column 31, the wiping portion 61 expands to not interfere with the guide rod 32. When the guide rod 32 extends out of the guide tube column 31, the wiping portion 61 expands to not contact the guide rod 32, avoiding wiping off the lubricating oil on the guide rod 32, so that when the guide rod 32 extends into the guide tube column 31, there is lubricating oil on the guide rod 32, and the lubricating oil can be cleaned together with the dust by the wiping mechanism 6, which is cleaner after cleaning.

[0053] See also Figure 6 The wiping portion 61 includes a fixed disk, a circular frame and a plurality of blades, the fixed disk is arranged at one end of the opening of the guide tube column 31, the circular frame is arranged on the side of the fixed disk away from the guide tube column 31, the fixed disk and the circular frame are both arranged around the guide rod 32, the circular frame is rotatably connected to the fixed disk so that the circular frame can rotate laterally relative to the fixed disk, the plurality of blades are arranged on the inner side of the circular frame, and a plurality of rotating arms are provided between the circular frame and the plurality of blades, the circular frame is connected to one end of the blade through the rotating arm, and the other end of the blade is rotatably connected to the fixed disk.

[0054] For further information, see Figure 7 The transmission part 62 includes a rack and a transmission gear set, the rack extends up and down and is transmission-connected to the second support plate 12, and a first transmission tooth and a second transmission tooth are arranged at intervals on the upper and lower edges of the rack, the first transmission tooth is arranged on the lower side of the second transmission tooth, the transmission gear set is meshed with the first transmission tooth and the second transmission tooth, and the transmission gear set is gear-connected with the circular frame. When the second support plate 12 moves down, the rack moves down and meshes with the transmission gear set, driving the circular frame to rotate clockwise, so that the multiple blades rotate to wrap the guide rod 32 along the circumferential direction, and when the second support plate 12 moves up, the rack moves up and meshes with the second transmission tooth, driving the circular frame to rotate counterclockwise, so that the multiple blades expand to no longer interfere with the guide rod 32.

[0055] In which, the circular frame is provided with a third transmission tooth, the third transmission tooth is meshed with the transmission gear set, and the number of teeth of the third transmission tooth is set corresponding to the first transmission tooth and the second transmission tooth, so that when the first transmission tooth moves down and meshes with the transmission gear set to complete the transmission, it just meshes with the third transmission gear to complete the transmission, so that when the second transmission tooth moves down and meshes with the transmission gear set to complete the transmission, the transmission gear set does not interfere with the third transmission tooth, so that when the second transmission tooth moves up and meshes with the transmission gear set to complete the transmission, it just meshes with the third transmission gear to complete the transmission, so that when the first transmission tooth moves up and meshes with the first transmission tooth to complete the transmission, the transmission gear set does not interfere with the third transmission tooth, so that when the first transmission tooth moves up and meshes with the first transmission tooth to complete the transmission, the transmission gear set does not interfere with the third transmission tooth, so that when the first transmission tooth moves upward and meshes with the first transmission tooth to transmit, the expansion state of the blade is not affected when the first transmission tooth moves up, and the contraction state of the blade is not affected when the second transmission tooth moves down.

[0056] Furthermore, the wiping portion 61 is arranged in two layers, including a coating layer and a cleaning layer arranged away from the opening of the guide tube column 31. The lubricating part 4 is connected to the coating layer, so that when the guide rod 32 extends into the guide tube column 31, the guide rod 32 is first cleaned by the cleaning layer, and then the lubricating oil is applied to the cleaned area through the coating layer. Through the cleaning layer, the dust and dirt on the guide rod 32 can be cleaned during the process of the guide rod 32 extending into the guide tube column 31. Through the coating layer, the lubricating oil can be applied to the surface of the guide rod 32 during the process of the guide rod 32 extending into the guide tube column 31.

[0057] The present invention also provides an automobile comprising a lifting axle mechanism, comprising a support plate assembly 1, a lifting mechanism 2, a guide assembly 3, and a lubricating element 4. Because the automobile lifting axle mechanism utilizes all of the technical solutions of all of the aforementioned embodiments, it possesses at least all of the beneficial effects of the technical solutions of the aforementioned embodiments, and therefore will not be further detailed here.

[0058] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A lifting axle mechanism for lifting a vehicle axle, characterized in that: include: A support plate assembly includes two support plates spaced apart from each other and extending laterally, at least one of the two support plates being movable in an upward and downward direction, the movable support plate being used for transmission connection with the axle, so that when the movable support plate moves up and down, the axle is driven to move up and down; A lifting mechanism drives the movable support plate to move up and down; A guide assembly, comprising a guide column and a guide rod extending up and down and movably arranged, wherein the guide column and the guide rod are arranged between the two support plates and are respectively connected to the two support plates; and a lubricating member connected to the guide tube or the guide rod to add lubricating oil between the guide tube column and the guide rod; The lubricating part is a grease nipple, which is used to connect to a grease gun so as to add lubricating oil through the grease gun; The inner side surface of the guide tube is provided with a spiral groove extending from top to bottom; the lubricating element is provided on one side of the guide tube and connected to the upper end of the groove; A first positioning portion is provided in the middle of the guide rod, and the first positioning portion includes a plurality of positioning rods arranged from top to bottom and coaxially arranged with the guide rod, the radius of the plurality of positioning rods is set to decrease from top to bottom, and an inclined surface transition is set between two adjacent positioning rods; a second positioning portion is recessed in the guide tube column and engages with the first positioning portion.

2. The lifting bridge mechanism according to claim 1, characterized in that: The two pallets include a first pallet and a second pallet, the first pallet is used to be fixed between the two longitudinal beams, and the second pallet is movably arranged up and down, and the lifting mechanism includes a first airbag, which is arranged between the first pallet and the second pallet, and the first airbag is driven and connected to the second pallet.

3. The lifting bridge mechanism according to claim 2, characterized in that: The lifting bridge mechanism further includes two guide arms spaced apart in a transverse direction, each guide arm having a first end and a second end, the first ends of the two guide arms being respectively rotatably connected to the two longitudinal beams, and the second ends of the two guide arms being respectively transmission-connected to the two ends of the axle; The lifting mechanism further includes a second airbag, one end of the second airbag is drivingly connected to the second end of the guide arm, and the other end of the second airbag is used to be connected to the longitudinal beam.

4. The lifting bridge mechanism according to claim 3, characterized in that: Elastic blocks are provided inside the first airbag and the second airbag.

5. The lifting bridge mechanism according to claim 1, characterized in that: The lifting bridge mechanism further includes a wiping mechanism, which includes: a wiping portion, which is expandable and contractible, and is disposed at one end of the opening of the guide column and surrounds the guide rod; and The transmission part transmits and connects the movably arranged support plate and the wiping part, so that when the movably arranged support plate moves up and down to cause the guide rod to extend into the guide tube column, the wiping part contracts to wrap around the guide rod, so as to wipe the guide rod during the process of the guide rod extending into the guide tube column, and when the movably arranged support plate moves up and down to cause the guide rod to extend out of the guide tube column, the wiping part expands to not interfere with the guide rod.

6. The lifting bridge mechanism according to claim 5, characterized in that: The wiping portion is arranged in two layers, including a coating layer and a cleaning layer arranged away from the opening of the guide tube column. The lubricating part is connected to the coating layer so that when the guide rod extends into the guide tube column, the guide rod is first cleaned by the cleaning layer, and then lubricating oil is applied to the cleaned area through the coating layer.

7. An automobile, characterized in that: Comprising a lifting bridge mechanism as described in any one of claims 1-6.

Images