Scissor type lifting vehicle

Abstract

A scissor type lifting vehicle comprises a chassis capable of moving on the ground, and a lifting part, a sliding part, an overturning part and a rotating part which are mounted on the chassis, the lifting part comprises a first linear rail, two symmetrical crossed connecting rods, a driving mechanism and a lifting platform, the first linear rail and the driving mechanism are installed on the chassis, and the upper ends and the lower ends of the fixed sides of the two crossed connecting rods are fixedly connected with the chassis and the lifting platform respectively; moving blocks are connected between the upper ends and the lower ends of the hinged sides of the two crossed connecting rods, and the two moving blocks are correspondingly connected with the lifting platform and the first linear rail in a sliding mode. The top of the lifting platform is correspondingly connected with an overturning part through a sliding part, the sliding part can move in the length direction of the lifting platform, the overturning part can rotate by 0-90 degrees along the horizontal plane, and a rotating part capable of driving the mounting plate to rotate on the plane where the rotating part is located is arranged at the top of the overturning part; the vehicle is high in applicability and higher in safety.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering vehicles, in particular to a scissor-type lifting vehicle. Background Art

[0002] As is known, the relative position between a certain point on the ground and the satellite is constantly changing, so the satellite signal receiver on the ground needs to adjust the orientation of its receiving end when in use to ensure that it can smoothly receive satellite signals. Generally, a lifting vehicle is used to assist in adjusting the lifting height and rotation angle of the satellite signal receiver;

[0003] Among them, in the traditional lifting vehicle, the satellite signal receiver is directly tilted and set on the top platform of the lifting vehicle, and then the top platform is supported by a screw motor. By starting the screw motor to control the lifting of the top platform, the lifting height of the signal receiver is adjusted, and the direction of the signal receiver is adjusted by moving the lifting vehicle, so that the signal receiver remains facing the satellite in space to complete the signal reception. However, due to 1. the U-turn during the movement of the lifting vehicle requires a large area of ​​open land to complete, for areas with limited mobile space or poor ground conditions, this type of lifting vehicle is not suitable; 2. When the top platform is raised or lowered, the weight of the platform is directly borne by the screw part of the screw motor, which affects the service life of the screw motor, making the screw part of the motor susceptible to stress damage, resulting in breakage, and further affecting the safe use of the lifting vehicle;

[0004] A rotatable and retractable signal receiving device for software engineering disclosed in a Chinese patent (CN217113203U) can drive the signal receiver to rotate through the coordination of a reduction motor, a first gear, and a second gear, thereby adjusting the angle of the signal receiver; through the coordination of a third gear, a fourth gear, and a threaded rod, the flat plate can be driven to move upward, and the flat plate will drive the signal receiver to move upward through a fixed rod, so that the height and angle of the device can be adjusted according to the strength of the signal, thereby improving the effect of the signal receiver receiving the signal; although the device can be lifted and rotated, the lifting structure is composed of gears and threaded rods, the transmission structure is relatively complex, and the threaded rod still needs to bear the weight of the flat plate, which affects the service life of the threaded rod, thereby making the device more prone to safety accidents;

[0005] Therefore, in summary, there is a need for a lifting vehicle with strong applicability and higher safety in the market. Utility Model Content

[0006] In order to overcome the deficiencies in the background technology, the utility model discloses a scissor-type lifting vehicle.

[0007] In order to achieve the above-mentioned invention object, the utility model adopts the following technical solutions:

[0008] A scissor lift comprises a chassis capable of moving on the ground, and a lifting part, a sliding part, a flipping part and a rotating part installed on the chassis; the lifting part comprises a first linear track, a cross link, a driving mechanism and a lifting platform, wherein the first linear track and the driving mechanism are installed on the chassis, the cross link is set as two symmetrical ones, one side of the cross link is set as a fixed side, and the other side is set as a hinged side, and the upper and lower ends of the fixed sides of the two cross links are respectively fixedly connected to the chassis and the lifting platform; the upper and lower ends of the hinged sides of the two cross links are connected between each other, and the two moving blocks are respectively slidably connected to the lifting platform and the first linear track, and the driving mechanism is used to control the lifting of the lifting platform;

[0009] The top of the lifting platform is connected to the flipping part through a sliding part, wherein the sliding part can move along the length direction of the lifting platform, and the flipping part can rotate 0-90° along the horizontal plane. The top of the flipping part is provided with a rotating part that can drive the mounting plate to rotate on its surface, and the plate surface of the mounting plate is used to install a satellite signal receiver.

[0010] Furthermore, a counterweight box is provided at one end of the top of the lifting platform corresponding to the hinged side of the cross-link.

[0011] Furthermore, the driving mechanism includes a motor, a gearbox, a driving screw and a slider, wherein the output end of the motor is correspondingly connected to the input end of the gearbox, the output end of the gearbox is correspondingly connected to the driving screw, the driving screw is coaxial with the first linear track, and the rod body of the driving screw is provided with a slider, which is fixedly connected to the moving block located at the lower end.

[0012] Furthermore, the gearbox is configured as a three-axis gearbox, wherein the three-axis gearbox has two input shafts and one output shaft, wherein one input shaft is correspondingly connected to the motor, and the other input shaft is provided with a manual wheel.

[0013] Furthermore, a detection switch is provided at one end of the first linear track corresponding to the fixed side of the cross-link, and the detection switch can sense the position of the moving block.

[0014] Furthermore, the sliding part includes a second linear rail, a slide plate, a driving hand wheel and a driving gear, wherein the second linear rail is installed on the top of the lifting platform, the slide plate is correspondingly slidably connected to the second linear rail, and a rack is provided at the bottom of the slide plate along the direction of the second linear rail; the end of the driving hand wheel extends into the lifting platform and is provided with a driving gear corresponding to the rack, and a flip part is provided on the top of the slide plate.

[0015] Due to the adoption of the above-mentioned technical solution, the utility model has the following beneficial effects:

[0016] The utility model discloses a scissor-type lift vehicle, 1. Through a lifting part, a sliding part, a flipping part and a rotating part, a satellite signal receiver can achieve multi-degree-of-freedom adjustment when the lift vehicle is stationary, and then smoothly and continuously receive satellite signals, thereby improving the terrain adaptability of the lift vehicle;

[0017] 2. The scissor-type lifting mechanism composed of cross-links can provide a certain degree of support for the lifting platform, thereby making the lifting platform more stable during the lifting process. It also further reduces the force on the driving mechanism and improves the overall safety of the lifting vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A structural schematic diagram of the utility model;

[0019] Figure 2 A schematic diagram of the structure of the lift vehicle to hide a cross link;

[0020] Figure 3 It is a structural schematic diagram of the sliding part.

[0021] In the figure: 1. chassis; 2. lifting part; 21. first linear track; 22. cross connecting rod; 23. moving block; 24. driving mechanism; 241. motor; 242. gearbox; 243. driving screw; 244. slider; 25. lifting platform; 3. sliding part; 31. second linear track; 32. slide plate; 33. driving hand wheel; 34. driving gear; 4. turning part; 5. rotating part; 6. mounting plate; 7. counterweight box; 8. manual wheel; 9. detection switch. DETAILED DESCRIPTION

[0022] The technical solution of the present invention will be described below in conjunction with the drawings in the embodiments of the present invention. In the description, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right" and the like indicating directions or positional relationships, they are only corresponding to the drawings of the present invention, for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction: Example 1

[0023] Combined with Figure 1-3The scissor lift comprises a chassis 1 capable of moving on the ground, and a lifting part 2, a sliding part 3, a flipping part 4 and a rotating part 5 installed on the chassis 1; the lifting part 2 comprises a first linear track 21, a cross link 22, a driving mechanism 24 and a lifting platform 25, wherein the first linear track 21 and the driving mechanism 24 are installed on the chassis 1, the cross link 22 is set as two symmetrical ones, one side of the cross link 22 is set as a fixed side, and the other side is set as a hinged side, and the upper and lower ends of the fixed sides of the two cross links 22 are fixedly connected to the chassis 1 and the lifting platform 25 respectively; the upper and lower ends of the hinged sides of the two cross links 22 are connected between the moving blocks 23, and the two moving blocks 23 are respectively connected to the lifting platform 25 and the first linear track 21 corresponds to a sliding connection, and the driving mechanism 24 is used to control the lifting and lowering of the lifting platform 25, wherein the driving mechanism 24 can be set as a linear action mechanism for directly lifting the lifting platform 25, but this will result in a larger gap between the lifting platform 25 and the chassis 1 when the lifting platform 25 is at the lowest point, shortening the liftable range of the lifting platform 25; the driving mechanism 24 can also be set as a linear action mechanism for driving a certain moving block 23 to move horizontally, and the lifting and lowering of the lifting platform 25 is driven by a driving direction conversion method, and the maximum liftable range of the lifting platform 25 is also guaranteed; it should be noted that the bottom of the lifting platform 25 is also provided with a slideway that cooperates with the passive moving block 23, which can ensure the stability of the lifting platform 25 during the lifting process;

[0024] In addition, it should be noted that a counterweight box 7 is provided at one end of the top of the lifting platform 25 corresponding to the hinged side of the cross link 22. Since the force on one end of the chassis 1 corresponding to the fixed side of the cross link 22 will gradually increase during the lifting of the lifting platform 25, which will cause the one end of the chassis 1 corresponding to the hinged side of the cross link 22 to tilt up, the weight of the counterweight box 7 is gradually increased when the lifting platform 25 rises, so that the force on both ends of the chassis 1 is kept balanced, thereby improving the safety of the lifting vehicle during operation. It should be noted that the weight adjustment in the counterweight box 7 can be collected from nearby soil or stones for insertion or removal, and it is also convenient to obtain materials anywhere.

[0025] In addition, the lifting part 2 can increase the height of the satellite signal receiver, so that the satellite signal receiver can exceed most of the obstructions, thereby improving the signal receiving ability of the satellite signal receiver. The scissor-type lifting mechanism composed of the cross-link 22 can play a certain supporting role on the lifting platform 25, thereby making the lifting platform 25 more stable during the lifting process, further reducing the force on the driving mechanism 24, and improving the overall safety of the lifting vehicle.

[0026] The top of the lifting platform 25 is connected to the flipping part 4 through the sliding part 3, wherein the sliding part 3 can move along the length direction of the lifting platform 25, and the flipping part 4 can rotate 0-90° along the horizontal plane. The top of the flipping part 4 is provided with a rotating part 5 that can drive the mounting plate 6 to rotate on its surface. The plate surface of the mounting plate 6 is used to install a satellite signal receiver. It should be noted that the sliding part 3, the flipping part 4 and the rotating part 5 can enable the satellite signal receiver to complete multi-degree-of-freedom adjustment when the lifting vehicle is stationary, and then smoothly achieve the purpose of continuously receiving satellite signals, thereby improving the terrain adaptability of the lifting vehicle. Example 2

[0027] On the basis of Example 1, the inventor of the present application redesigned the structure of the driving mechanism 24, which includes a motor 241, a gearbox 242, a driving screw 243 and a slider 244. The output end of the motor 241 is correspondingly connected to the input end of the gearbox 242, and the output end of the gearbox 242 is correspondingly connected to the driving screw 243. The driving screw 243 is coaxial with the first linear track 21, and the rod body of the driving screw 243 is provided with a slider 244. The slider 244 is correspondingly fixedly connected to the moving block 23 at the lower end. The motor 241 drives the driving screw 243 to rotate through the gearbox 242, and the slider 244 is screwed on the driving screw 243. When the driving screw 243 rotates forward or reverse, it will drive the slider 244 to move in the corresponding direction, thereby driving the moving block 23 to move synchronously. The driving screw 243 coaxial with the first linear track 21 is adopted, so that the force and force application direction of the driving screw 243 and the cross-link 22 are different, that is, the driving screw 243 is used as a horizontal drive, and the cross-link 22 is a vertical action, which makes the force of the driving screw 243 effectively dispersed, has the effect of protecting the driving screw 243, and improves the service life of the overall lifting vehicle.

[0028] In addition, it should be noted that the gearbox 242 is configured as a three-axis gearbox 242, wherein the three-axis gearbox 242 has two input shafts and one output shaft, wherein one input shaft is correspondingly connected to the motor 241, and the other input shaft is provided with a manual wheel 8. By adding the manual wheel 8, the driving mode of the driving mechanism 24 can be diversified, and in the event of a power outage, the lifting part 2 can still work normally. Example 3

[0029] On the basis of Example 2, the inventor of the present application provides a detection switch 9 at one end of the first linear rail 21 corresponding to the fixed side of the cross-link 22. The detection switch 9 can sense the position of the moving block 23. When the hinged side of the cross-link 22 moves into the sensing range of the detection switch 9, the detection switch 9 will output a shutdown signal, thereby turning off the motor 241, stopping the lifting platform 25 from rising, and preventing the hinged side and the fixed side of the cross-link 22 from being too close, resulting in the support point of the lifting platform 25 being too close to one side, affecting the balancing ability of the lifting platform 25; it should be noted that by setting the sensitivity of the detection switch 9, the minimum distance between the hinged side and the fixed side of the cross-link 22 can be adjusted. Example 4

[0030] On the basis of Example 1, the inventor of the present application designed that the sliding part 3 includes a second linear rail 31, a slide plate 32, a driving hand wheel 33 and a driving gear 34, wherein the second linear rail 31 is installed on the top of the lifting platform 25, and the slide plate 32 is correspondingly slidably connected with the second linear rail 31, and a rack is provided at the bottom of the slide plate 32 along the direction of the second linear rail 31; the end of the driving hand wheel 33 extends into the lifting platform 25, and is provided with a driving gear 34 correspondingly meshed with the rack, and a flip part 4 is provided on the top of the slide plate 32. Since the satellite signal receiver mainly needs to adjust its elevation angle and height, there are not many cases where the sliding part 3 is started, so the production cost of the lifting vehicle can be reduced by adopting manual drive.

[0031] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention, and any figure marks in the claims should not be regarded as limiting the claims involved.

Claims

1. A scissor lift, characterized by: The invention comprises a chassis (1) capable of moving on the ground, and a lifting part (2), a sliding part (3), a flipping part (4) and a rotating part (5) installed on the chassis (1); the lifting part (2) comprises a first linear track (21), a cross link (22), a driving mechanism (24) and a lifting platform (25), wherein the first linear track (21) and the driving mechanism (24) are installed on the chassis (1), the cross link (22) is set as two symmetrical ones, one side of the cross link (22) is set as a fixed side, and the other side is set as a hinged side, and the upper and lower ends of the fixed sides of the two cross links (22) are respectively fixedly connected to the chassis (1) and the lifting platform (25); the upper and lower ends of the hinged sides of the two cross links (22) are connected between each other, and the two moving blocks (23) are respectively slidably connected to the lifting platform (25) and the first linear track (21), and the driving mechanism (24) is used to control the lifting and lowering of the lifting platform (25); The top of the lifting platform (25) is connected to the flipping part (4) via a sliding part (3), wherein the sliding part (3) can move along the length direction of the lifting platform (25), and the flipping part (4) can rotate 0-90 degrees along the horizontal plane. The top of the flipping part (4) is provided with a rotating part (5) capable of driving the mounting plate (6) to rotate on its surface, and the plate surface of the mounting plate (6) is used to install a satellite signal receiver.

2. The scissor lift vehicle according to claim 1, characterized in that: A counterweight box (7) is provided at one end of the top of the lifting platform (25) corresponding to the hinged side of the cross connecting rod (22).

3. The scissor lift vehicle according to claim 1, characterized in that: The driving mechanism (24) comprises a motor (241), a gearbox (242), a driving screw (243) and a slider (244), wherein the output end of the motor (241) is correspondingly connected to the input end of the gearbox (242), the output end of the gearbox (242) is correspondingly connected to the driving screw (243), the driving screw (243) is coaxial with the first linear track (21), and the rod body of the driving screw (243) is provided with a slider (244), and the slider (244) is correspondingly fixedly connected to the moving block (23) located at the lower end.

4. The scissor lift vehicle according to claim 3, characterized in that: The gearbox (242) is configured as a three-axis gearbox (242), wherein the three-axis gearbox (242) has two input shafts and an output shaft, wherein one input shaft is correspondingly connected to the motor (241), and the other input shaft is provided with a manual wheel (8).

5. The scissor lift vehicle according to claim 1, characterized in that: A detection switch (9) is provided at one end of the first linear track (21) corresponding to the fixed side of the cross link (22), and the detection switch (9) is capable of sensing the position of the moving block (23).

6. The scissor lift vehicle according to claim 1, characterized in that: The sliding part (3) comprises a second linear track (31), a slide plate (32), a driving hand wheel (33) and a driving gear (34), wherein the second linear track (31) is mounted on the top of the lifting platform (25), the slide plate (32) is slidably connected to the second linear track (31), and a rack is provided at the bottom of the slide plate (32) along the direction of the second linear track (31); the end of the driving hand wheel (33) extends into the lifting platform (25) and is provided with a driving gear (34) meshing with the rack, and a flip part (4) is provided at the top of the slide plate (32).

Images