Automatic leveling and supporting device for power supply vehicle

Abstract

The utility model belongs to the field of power van leveling devices, and discloses an automatic leveling supporting device for a power van, which comprises a van body and a lifting platform, the lifting platform is arranged at the top of the van body, two symmetrically distributed leveling mechanisms are arranged between the lifting platform and the van body, and each leveling mechanism comprises two fixing plates fixedly connected to the bottom surface of the inner wall of the van body. And one side of one fixing plate is fixedly connected with a motor. By arranging the inclination sensing mechanism, when the vehicle body moves along a slope and the top face of the lifting table inclines, a load bearing ball is used for enabling a swing rod to rotate, so that an I-shaped conductive block is connected with a control switch in the inclination direction to form a complete circuit, and then two motors are controlled to rotate forwards and backwards correspondingly; the two leveling mechanisms are used for adjusting the heights of the two sides of the lifting table in an ascending or descending mode, rapid leveling of the lifting table is achieved, and the problem that automatic leveling is difficult to conduct when the power van moves along a slope through a leveling mechanism in a traditional power van is effectively solved.

Description

Technical Field

[0001] The utility model relates to the field of leveling devices for power supply vehicles, in particular to an automatic leveling support device for power supply vehicles. Background Art

[0002] A power supply vehicle is a vehicle body that is driven by electricity and is often used to transport goods within factories. The top surface of a power supply vehicle is mostly a table that can be leveled, so that the goods can remain stable on the table.

[0003] Existing technology, such as the "Automatic Leveling Support System for a Power Supply Vehicle" in Chinese Patent No. CN204279382U, uses a level sensor to send a signal to a hydraulic power unit, automatically leveling the vehicle to a pre-set level, thus saving time. The leveling ensures that the vehicle meets the operating requirements of the generator set, effectively maximizing the vehicle's capabilities. This system offers convenient and reliable operation, while also improving operational safety for emergency power supply vehicles.

[0004] However, the above-mentioned leveling device can only perform autonomous leveling when the power supply vehicle is parked firmly on the ground. When the power supply vehicle moves in the factory, it may move along a slope. At this time, it is difficult for the power supply vehicle to automatically level itself during the movement, resulting in the existing power supply vehicle still having a certain tilt angle when the lifting platform moves along the slope.

[0005] Based on this, the utility model designs an automatic leveling support device for a power supply vehicle to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the prior art, the utility model provides an automatic leveling support device for a power supply vehicle.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] The lifting mechanism is a pair of fixedly mounted on two ends of the lifting handle which are mounted on the side of the lifting handle of the vehicle, and the fixing portions of the fixedly mounted on the lifting handle are connected to the fixing portions of the lifting mechanism.

[0009] Furthermore, the fixing box is arranged in the middle part of the bottom surface of the lifting platform, and the vertical axis of the weight-bearing ball coincides with the vertical axis of the vehicle body;

[0010] Furthermore, two symmetrically arranged mounting grooves are provided on both sides of the inner wall of the I-shaped conductive block, a return spring is fixedly connected to one side of the inner wall of the mounting groove, and one end of the return spring is fixedly connected to a conductive ball;

[0011] Furthermore, both sides of the two control switches are provided with connection grooves, and the size of the connection grooves is adapted to the size of the conductive balls;

[0012] Furthermore, the side of the mounting bar away from the swing arm is fixedly connected to a limit plate, a limit slot is formed through one side of the limit plate, an end of the swing arm close to the limit plate is fixedly connected to a limit block, and the limit block is slidably connected to the inside of the limit slot;

[0013] Furthermore, the bottom surface of the inner wall of the limiting groove is provided with two symmetrically arranged clearance grooves, and the inside of the clearance groove is rotatably connected to two stoppers, the size of the clearance groove is adapted to the size of the stoppers, and the two stoppers are respectively arranged on both sides of the limiting block;

[0014] Furthermore, a screw rod is rotatably connected between the two fixing plates, one end of the screw rod passes through one of the fixing plates and is transmission-connected to the output end of the motor;

[0015] Furthermore, the external thread of the screw rod is connected to a sliding plate, two symmetrically arranged guide rods are fixedly connected between the two fixed plates, and the sliding plate is slidably connected to the two guide rods;

[0016] Furthermore, both ends of the sliding plate are rotatably connected to a first rotating rod, and the tops of the two first rotating rods are rotatably connected to the bottom surface of the lifting platform;

[0017] Furthermore, the opposite sides of the two No. 1 rotating rods are both rotatably connected to the No. 2 rotating rods, and the bottom ends of the No. 2 rotating rods are rotatably connected to the bottom surface of the inner wall of the vehicle body.

[0018] Beneficial effects

[0019] The utility model is provided with a tilt sensing mechanism. When the vehicle body moves along the slope and the top surface of the lifting platform is tilted, the weighted ball is used to rotate the swing rod, so that the I-shaped conductive block is connected to the control switch in the tilt direction to form a complete circuit, and then the two motors are controlled to rotate forward and reverse respectively, so that the two leveling mechanisms respectively adjust the height of the two sides of the lifting platform to rise or fall, thereby realizing rapid leveling of the lifting platform. This effectively solves the problem that the leveling mechanism in the traditional power supply vehicle is difficult to automatically level when the power supply vehicle moves along the slope;

[0020] Furthermore, by setting a limit plate and using a limit groove and a stop block to limit the movement of the limit block, it is effectively avoided that when the vehicle body shakes, the swing arm shakes and causes the I-shaped conductive block to accidentally touch the control switch, causing the motor to start, thereby improving the stability of the device;

[0021] At the same time, different control switches can be used to control the rotation direction of the motor's control screw, thereby controlling the moving direction of the sliding plate. By coordinating the No. 1 rotating rod and the No. 2 rotating rod, one side of the lifting platform can be lifted and lowered, thereby achieving the leveling effect of the lifting platform. During the leveling process, the support of the No. 1 rotating rod by the No. 2 rotating rod on the No. 1 rotating rod can make the leveling process of the lifting platform more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] 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 the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0023] Figure 1 This is a three-dimensional diagram of the main structure of an automatic leveling support device for a power vehicle of the present utility model;

[0024] Figure 2 This is a perspective view of a vehicle body and a lifting platform in section in an automatic leveling support device for a power vehicle according to the present invention;

[0025] Figure 3 This is a perspective view of a cross-section of a fixing box in an automatic leveling support device for a power vehicle according to the present invention;

[0026] Figure 4 This utility model is an automatic leveling support device for power supply vehicles Figure 3 A magnified view of the structure at center A;

[0027] Figure 5 This is a three-dimensional diagram of part of the structure of an automatic leveling support device for a power vehicle according to the present invention;

[0028] Figure 6 This is a three-dimensional diagram of the leveling mechanism in the automatic leveling support device for a power supply vehicle of the present utility model.

[0029] The numbers in the figure represent:

[0030] 1. Vehicle body; 2. Lifting platform; 3. Leveling mechanism; 31. Fixed plate; 32. Screw; 33. Motor; 34. Sliding plate; 35. Guide rod; 36. Rotating rod No. 1; 37. Rotating rod No. 2; 4. Tilt sensing mechanism; 41. Fixed box; 42. Mounting strip; 43. Swing rod; 44. I-shaped conductive block; 441. Mounting slot; 442. Reset spring; 443. Conductive ball; 45. Weight-bearing ball; 46. Control switch; 461. Connecting slot; 47. Limit plate; 48. Limit slot; 49. Limit block; 410. Giving slot; 411. Stop block. DETAILED DESCRIPTION

[0031] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0032] The present invention will be further described below with reference to the embodiments.

[0033] In some embodiments, please refer to the appendix of the specification. Figure 1 - Figure 6, an automatic leveling support device for a power supply vehicle, comprising a vehicle body 1 and a lifting platform 2, the lifting platform 2 is arranged on the top of the vehicle body 1, and two symmetrically distributed leveling mechanisms 3 are arranged between the lifting platform 2 and the vehicle body 1, the leveling mechanism 3 comprises two fixed plates 31 fixedly connected to the bottom surface of the inner wall of the vehicle body 1, one side of one fixed plate 31 is fixedly connected to a motor 33, and a tilt sensing mechanism 4 is provided on the bottom surface of the lifting platform 2, the tilt sensing mechanism 4 comprises a fixed box 41 fixedly connected to the bottom surface of the lifting platform 2, the top surface of the inner wall of the fixed box 41 is fixedly connected to a mounting bar 42, one side of the mounting bar 42 is rotatably connected to a swing rod 43, the bottom of the swing rod 43 is fixedly connected to an I-shaped conductive block 44, the bottom of the I-shaped conductive block 44 is fixedly connected to a weight-bearing ball 45, and control switches 46 are fixedly connected to both sides of the inner wall of the fixed box 41, the control switch 46 is electrically set with the I-shaped conductive block 44, and the two control switches 46 are electrically connected to the two motors 33.

[0034] In an embodiment of the present utility model, a moving wheel is provided at the bottom of the vehicle body 1. The leveling mechanism 3 is used to level the lifting platform 2 and can also support the lifting platform 2 for lifting movements. Two motors 33 are connected to an additional controller to support the lifting movement of the lifting platform 2. At the same time, the control switch 46 can independently control the start of the motor 33 after being connected to the I-shaped conductive block 44. The tilt sensing mechanism 4 is used to sense the degree of inclination of the lifting platform 2 when the vehicle body 1 moves along the slope, and automatically control the leveling mechanism 3 for leveling. The material of the I-shaped conductive block 44 is an alloy with good conductivity. The specific process is as follows: when the vehicle body 1 moves along the slope, the lifting platform 2 will tilt along the direction of the slope. At this time, the weight-bearing ball 45 causes the swing rod 43 to rotate due to its own weight. At this time, the I-shaped conductive block 44 moves and is connected to the control switch in the tilt direction. 46 is connected, and the control switch 46 is inserted into the groove of the I-shaped conductive block 44. There is a lack of a complete circuit inside the control switch 46. Only when the I-shaped conductive block 44 is connected to it can a complete circuit be formed, thereby controlling the operation of the motor 33. One of the control switches 46 controls one of the motors 33 to rotate forward and controls the other motor 33 to reverse, so that the two leveling mechanisms 3 respectively drive the two sides of the lifting platform 2 to rise and fall, thereby performing the leveling operation more quickly. Similarly, the other control switch 46 controls one of the motors 33 to reverse and controls the other motor 33 to rotate forward. After the lifting platform 2 is leveled, the weight-bearing ball 45 restores the swing rod 43 to a vertical state due to its own weight. At this time, the I-shaped conductive block 44 is separated from the control switch 46, thereby turning off the motor 33, thereby achieving the effect of keeping the lifting platform 2 in a horizontal state.

[0035] In the embodiment of the present utility model, by setting a tilt sensing mechanism 4, when the vehicle body 1 moves along the slope and the top surface of the lifting platform 2 is tilted, the weight-bearing ball 45 is used to rotate the swing rod 43, so that the I-shaped conductive block 44 is connected to the control switch 46 in the tilt direction to form a complete circuit, and then the two motors 33 are controlled to rotate forward and reverse respectively, so that the two leveling mechanisms 3 respectively adjust the height of the two sides of the lifting platform 2 to rise or fall, thereby realizing rapid leveling of the lifting platform 2, effectively solving the problem that the leveling mechanism 3 in the traditional power supply vehicle is difficult to automatically level when the power supply vehicle moves along the slope.

[0036] In some embodiments, as Figure 1 - Figure 5 As a preferred embodiment of the present invention, the fixed box 41 is arranged in the middle part of the bottom surface of the lifting platform 2, and the vertical axis of the weight-bearing ball 45 coincides with the vertical axis of the vehicle body 1.

[0037] Two symmetrical mounting slots 441 are provided on both sides of the inner wall of the I-shaped conductive block 44 . A return spring 442 is fixedly connected to one side of the inner wall of the mounting slot 441 , and a conductive ball 443 is fixedly connected to one end of the return spring 442 .

[0038] Connecting slots 461 are formed on both sides of the two control switches 46 , and the size of the connecting slots 461 matches the size of the conductive ball 443 .

[0039] The side of the mounting bar 42 away from the swing rod 43 is fixedly connected to the limiting plate 47 , and a limiting groove 48 is formed through one side of the limiting plate 47 . The end of the swing rod 43 close to the limiting plate 47 is fixedly connected to the limiting block 49 , and the limiting block 49 is slidably connected to the inside of the limiting groove 48 .

[0040] Two symmetrically arranged clearance grooves 410 are provided on the bottom surface of the inner wall of the limiting groove 48. The internal rotation of the clearance groove 410 is connected to two stoppers 411. The size of the clearance groove 410 is adapted to the size of the stoppers 411. The two stoppers 411 are respectively arranged on both sides of the limiting block 49.

[0041] In the embodiment of the present invention, the weighted ball 45 is kept at the center of the lifting platform 2, and can directly drive the swing rod 43 to rotate when the lifting platform 2 is tilted. The conductive ball 443 and the return spring 442 are made of an alloy with good conductivity. When the swing rod 43 rotates, the conductive ball 443 is squeezed by both sides of the control switch 46 to shrink into the installation groove 441 until the conductive ball 443 is connected to the connecting groove 461. The return spring 442 releases the elastic force generated during the contraction to push the conductive ball 443 into the connecting groove 461, thereby forming a complete circuit to control the start of the motor 33, and the stop block 411 and the give way groove 41 0 is provided with a torsion spring at the connection of the stop block 411, which can rotate and reset the stop block 411 after the external force disappears. When the swing arm 43 shakes, the limit block 49 contacts the stop block 411. At this time, due to the elastic force of the torsion spring, the stop block 411 does not enter the give way groove 410, so that the limit block 49 cannot move in the limit groove 48. When the swing arm 43 rotates with the movement of the weight-bearing ball 45, the weight of the weight-bearing ball 45 exceeds the elastic force range of the torsion spring, so that the stop block 411 enters the give way groove 410, so that the swing arm 43 can continue to rotate, thereby realizing the connection between the I-shaped conductive block 44 and the control switch 46.

[0042] In the embodiment of the present utility model, a limit plate 47 is provided and the movement of the limit block 49 is restricted by the limit groove 48 and the stop block 411, thereby effectively avoiding the situation in which the swing arm 43 shakes when the vehicle body 1 shakes, causing the I-shaped conductive block 44 to accidentally touch the control switch 46 and start the motor 33, thereby improving the stability of the device.

[0043] In some embodiments, as Figure 1 、 Figure 2 and Figure 6 As shown, as a preferred embodiment of the present invention, a screw rod 32 is rotatably connected between the two fixing plates 31 , and one end of the screw rod 32 passes through one of the fixing plates 31 and is transmission-connected to the output end of the motor 33 .

[0044] The external thread of the screw rod 32 is connected to a sliding plate 34 . Two symmetrically arranged guide rods 35 are fixedly connected between the two fixed plates 31 . The sliding plate 34 is slidably connected to the two guide rods 35 .

[0045] Both ends of the sliding plate 34 are rotatably connected to a number one rotating rod 36 , and the tops of the two number one rotating rods 36 are rotatably connected to the bottom surface of the lifting platform 2 .

[0046] The opposite sides of the two No. 1 rotating rods 36 are both rotatably connected to the No. 2 rotating rod 37 , and the bottom ends of the No. 2 rotating rods 37 are rotatably connected to the bottom surface of the inner wall of the vehicle body 1 .

[0047] In the embodiment of the present utility model, the motor 33 drives the screw rod 32 to rotate the sliding plate 34 thereon. When the motor 33 is rotating forward and reverse, the rotation direction of the screw rod 32 is controlled to control the movement direction of the sliding plate 34. The rotation coordination between the No. 1 rotating rod 36 and the No. 2 rotating rod 37 enables one side of the lifting platform 2 to achieve the lifting effect. The No. 2 rotating rod 37 can share the weight of the lifting platform 2 on the vehicle body 1, effectively avoiding excessive load on the screw rod 32, and the No. 1 rotating rod 36 can also be rotated more smoothly through the No. 2 rotating rod 37.

[0048] In the embodiment of the present utility model, different control switches 46 can be used to control the rotation direction of the control screw 32 of the motor 33, thereby controlling the moving direction of the sliding plate 34, and cooperating with the No. 1 rotating rod 36 and the No. 2 rotating rod 37 to achieve a lifting effect on one side of the lifting platform 2, thereby achieving a leveling effect on the lifting platform 2. During the leveling process, the supporting effect of the No. 1 rotating rod 36 by the No. 2 rotating rod 37 can make the leveling process of the lifting platform 2 more stable.

[0049] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An automatic leveling support device for a power supply vehicle, comprising a vehicle body (1) and a lifting platform (2), wherein the lifting platform (2) is arranged on the top of the vehicle body (1), and is characterized in that: Two symmetrically distributed leveling mechanisms (3) are provided between the lifting platform (2) and the vehicle body (1), the leveling mechanism (3) comprising two fixing plates (31) fixedly connected to the bottom surface of the inner wall of the vehicle body (1), one side of the fixing plates (31) being fixedly connected to a motor (33), and a tilt sensing mechanism (4) is provided on the bottom surface of the lifting platform (2), the tilt sensing mechanism (4) comprising a fixing box (41) fixedly connected to the bottom surface of the lifting platform (2), the inner wall top surface of the fixing box (41) being fixed A mounting bar (42) is connected, one side of the mounting bar (42) is rotatably connected to a swing rod (43), the bottom of the swing rod (43) is fixedly connected to an I-shaped conductive block (44), the bottom of the I-shaped conductive block (44) is fixedly connected to a weight-bearing ball (45), and both sides of the inner wall of the fixed box (41) are fixedly connected to control switches (46), the control switches (46) are electrically connected to the I-shaped conductive block (44), and the two control switches (46) are electrically connected to the two motors (33).

2. The automatic leveling support device for a power supply vehicle according to claim 1, characterized in that: The fixed box (41) is arranged in the middle of the bottom surface of the lifting platform (2), and the vertical axis of the weight-bearing ball (45) coincides with the vertical axis of the vehicle body (1).

3. The automatic leveling support device for a power supply vehicle according to claim 2, characterized in that: Two symmetrically arranged mounting grooves (441) are provided on both sides of the inner wall of the I-shaped conductive block (44); a reset spring (442) is fixedly connected to one side of the inner wall of the mounting groove (441); and a conductive ball (443) is fixedly connected to one end of the reset spring (442).

4. The automatic leveling support device for a power supply vehicle according to claim 3, characterized in that: Both sides of the two control switches (46) are provided with connection slots (461), and the size of the connection slots (461) is adapted to the size of the conductive ball (443).

5. The automatic leveling support device for a power supply vehicle according to claim 1, characterized in that: The side of the mounting bar (42) away from the swing rod (43) is fixedly connected to a limiting plate (47), and a limiting groove (48) is provided through one side of the limiting plate (47). The end of the swing rod (43) close to the limiting plate (47) is fixedly connected to a limiting block (49), and the limiting block (49) is slidably connected to the inside of the limiting groove (48).

6. The automatic leveling support device for a power supply vehicle according to claim 5, characterized in that: The bottom surface of the inner wall of the limiting groove (48) is provided with two symmetrically arranged clearance grooves (410), the interior of the clearance groove (410) is rotatably connected to two stoppers (411), the size of the clearance groove (410) is adapted to the size of the stoppers (411), and the two stoppers (411) are respectively arranged on both sides of the limiting block (49).

7. The automatic leveling support device for a power supply vehicle according to claim 1, characterized in that: A screw rod (32) is rotatably connected between the two fixing plates (31), and one end of the screw rod (32) passes through one of the fixing plates (31) and is transmission-connected to the output end of the motor (33).

8. The automatic leveling support device for a power supply vehicle according to claim 7, characterized in that: The external thread of the screw rod (32) is connected to a sliding plate (34), two symmetrically arranged guide rods (35) are fixedly connected between the two fixed plates (31), and the sliding plate (34) is slidably connected to the two guide rods (35).

9. The automatic leveling support device for a power supply vehicle according to claim 8, characterized in that: Both ends of the sliding plate (34) are rotatably connected to a No. 1 rotating rod (36), and the tops of the two No. 1 rotating rods (36) are rotatably connected to the bottom surface of the lifting platform (2).

10. The automatic leveling support device for a power supply vehicle according to claim 9, characterized in that: The opposite sides of the two first rotating rods (36) are both rotatably connected to the second rotating rod (37), and the bottom ends of the second rotating rods (37) are rotatably connected to the bottom surface of the inner wall of the vehicle body (1).

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