Auxiliary lifting mechanism of movable shear type lifting machine

Abstract

The invention discloses an auxiliary lifting mechanism of a movable shear type lifting machine, a movable mechanism comprises two main pressing rods and two auxiliary pressing rods, a first connecting rod is fixedly connected between the two main pressing rods, the main pressing rods are movably connected with a hook lock assembly, and the hook lock assembly is movably connected with a second connecting rod. A synchronous connecting rod is movably connected between the two hook lock assemblies, a second connecting rod is fixedly connected between the two slave pressing rods, fixing bolts are fixedly connected to one sides of the slave pressing rods, and the main pressing rod and the slave pressing rods are movably connected to the bottom of the bottom plate through stabilizing assemblies. Universal wheels are fixedly connected to the bottom of the main pressing rod and the bottom of the auxiliary pressing rod, the device relates to the technical field of scissor lifters, the main pressing rod and the auxiliary pressing rod are pressed downwards and locked, the universal wheels make contact with the ground, and therefore the device is convenient to move, and the device is adjusted to cope with an uneven road surface through a ratchet rod, a climbing pawl and a fixed pawl; the device is higher in adaptability, and outdoor operation is more convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of scissor lifts, and particularly to an auxiliary lifting mechanism for a mobile scissor lift. Background Technique

[0002] The auxiliary lifting mechanism for a mobile scissor lift is an auxiliary device that improves the stability, safety, and operation convenience of a traditional scissor lift through mechanical or hydraulic devices, meeting the high-precision requirements for vehicle lifting, four-wheel alignment, chassis maintenance, etc. in modern automobile repair scenarios. With the development of the economy and the upgrading of the requirements for equipment precision, safety, and intelligence in the automobile repair industry, the auxiliary lifting mechanism for a mobile scissor lift provides key support for the efficient, safe, and green development of the automotive aftermarket. However, the environmental adaptability of the existing auxiliary lifting mechanisms for mobile scissor lifts on the market is poor, making it difficult to cope with outdoor uneven road conditions, and the adjustment accuracy is poor, with large errors during actual use, which is very inconvenient. Summary of the Invention

[0003] The purpose of the present invention is to provide an auxiliary lifting mechanism for a mobile scissor lift to solve the technical problems mentioned in the above background technique.

[0004] The purpose of the present invention can be achieved through the following technical solutions:

[0005] An auxiliary lifting mechanism for a mobile scissor lift includes a bottom plate. A moving mechanism is arranged at the bottom of the bottom plate, and a lifting mechanism is arranged on the bottom plate.

[0006] The moving mechanism includes a main pressure rod and a secondary pressure rod. There are two main pressure rods and two secondary pressure rods. A first connecting rod is fixedly connected between the two main pressure rods. A hook lock assembly is movably connected to the main pressure rod. A synchronous connecting rod is movably connected between the two hook lock assemblies. A second connecting rod is fixedly connected between the two secondary pressure rods. A fixing bolt is fixedly connected to one side of the secondary pressure rod. The main pressure rod and the secondary pressure rod are both movably connected to the bottom of the bottom plate through a stabilizing component. Universal wheels are fixedly connected to the bottoms of the main pressure rod and the secondary pressure rod.

[0007] As a further scheme of the present invention: The hook lock assembly includes a hook. A spring is fixedly connected to the hook. One end of the spring is fixedly connected to a connecting plate, and the connecting plate is fixedly connected to the main pressure rod. Both hooks are fixedly connected to the synchronous connecting rod.

[0008] As a further solution of the present invention: The stabilizing component includes a ratchet rod. There are four ratchet rods, and one end of each of the four ratchet rods is fixedly connected to the bottom of the bottom plate. A limiting ring is fixedly connected to the ratchet rod. A sleeve is slidably connected to the outer surface of the ratchet rod. A climbing tube and a fixed tube are respectively fixedly connected to the sleeve. A climbing groove and a fixed groove are respectively formed through the sleeve. A fixed ratchet is rotatably connected inside the fixed tube. The climbing tube communicates with the climbing groove, and the fixed tube communicates with the fixed groove. The fixed ratchet meshes with the ratchet rod. A climbing component is movably connected inside the climbing tube.

[0009] As a further solution of the present invention: The climbing component includes a handle. One end of the handle is fixedly connected to a U-shaped rod. The U-shaped rod is rotatably connected inside the climbing tube. A rotating shaft is rotatably connected to the inner side of the U-shaped rod. A climbing ratchet is rotatably connected to the rotating shaft. The climbing ratchet meshes with the ratchet rod.

[0010] As a further solution of the present invention: Both the main pressure rod and the secondary pressure rod are rotatably connected to the sleeve.

[0011] As a further solution of the present invention: The lifting mechanism includes a first motor and a support plate. A sliding rod is fixedly connected to the bottom of the support plate. There are four sliding rods, and a sleeve is slidably connected to the surface of each of the four sliding rods. One end of the sleeve is fixedly connected to the top of the bottom plate. The first motor is fixedly installed on one side of the bottom plate through a mounting plate. The output end of the first motor is fixedly connected to a bidirectional lead screw. Both ends of the bidirectional lead screw are rotatably connected to a fixed block, and the two fixed blocks are fixedly connected to the bottom plate. A support component is movably connected to the bidirectional lead screw. There are two support components symmetrically arranged. An adjusting component is movably connected to the top of the support plate.

[0012] As a further solution of the present invention: The support component includes two third connecting rods symmetrically arranged. A moving block is fixedly connected between the two third connecting rods. The moving block is threadedly connected to the outer surface of the bidirectional lead screw. One end of each of the two third connecting rods is rotatably connected to a fourth connecting rod, and one end of each of the two fourth connecting rods is rotatably connected to the bottom of the support plate.

[0013] As a further solution of the present invention: The adjusting component includes a support plate and a second motor. An arc-shaped rack is fixedly connected to the arc surface of the support plate. An arc-shaped bridge is slidably connected to the arc surface of the support plate. Two arc-shaped bridges are symmetrically arranged. Both arc-shaped bridges are fixedly connected to the top of the bottom plate. A chute is formed through the top of the arc-shaped bridge. A screw rod is slidably connected in the chute. One end of the screw rod is fixedly connected to the bottom of the support plate. A gasket is sleeved on the screw rod. A nut is threadedly connected to the screw rod. The second motor is fixedly installed on the top of the support plate. The output end of the second motor is fixedly connected to a gear, and the gear meshes with the arc-shaped rack.

[0014] Beneficial effects

[0015] The present invention provides an auxiliary lifting mechanism for a mobile scissor lift. Compared with the prior art, it has the following beneficial effects:

[0016] (1) By pressing down the main pressure rod and the secondary pressure rod and locking them, the universal wheels contact the ground, thus facilitating the movement of the device. The device is adjusted to cope with uneven roads through the ratchet rod, the climbing ratchet and the fixed ratchet, making the device more adaptable and more convenient for outdoor operation.

[0017] (2) By adjusting the angle of the fourth connecting rod through the bidirectional lead screw, the height adjustment of the device is more accurate. At the same time, in cooperation with the meshing relationship between the gear and the arc-shaped rack, the adjustment of the inclination angle of the device is realized, reducing the error of the device. Description of the drawings

[0018] Figure 1 is a three-dimensional view of the present invention;

[0019] Figure 2 is a sectional view of the present invention;

[0020] Figure 3 is a partial three-dimensional view of the moving mechanism of the present invention;

[0021] Figure 4 is an exploded view of the stabilizing component of the present invention;

[0022] Figure 5 is the present invention Figure 2 partial enlarged view at A in;

[0023] Figure 6 is a partial exploded view of the lifting mechanism of the present invention;

[0024] Figure 7 is a partial side sectional view of the adjusting component of the present invention;

[0025] Figure 8 is a partial exploded view of the lifting mechanism of the present invention.

[0026] In the figure: 1. Bottom plate; 2. Moving mechanism; 21. Main pressure rod; 22. Secondary pressure rod; 23. First connecting rod; 24. Hook lock assembly; 241. Hook; 242. Spring; 243. Connecting plate; 25. Synchronous connecting rod; 26. Second connecting rod; 27. Fixed bolt; 28. Stabilizing assembly; 281. Ratchet rod; 282. Limit ring; 283. Sleeve; 284. Climbing tube; 285. Fixed tube; 286. Climbing groove; 287. Fixed groove; 288. Fixed ratchet; 29. Universal wheel; 3. Lifting mechanism; 31. First motor; 32. Support plate; 33. Slide rod; 34. Sleeve rod; 35. Mounting plate; 36. Bi-directional lead screw; 37. Fixed block; 38. Support assembly; 381. Third connecting rod; 382. Moving block; 383. Fourth connecting rod; 39. Adjusting assembly; 391. Support plate; 392. Second motor; 393. Arc-shaped rack; 394. Arc-shaped bridge; 395. Chute; 396. Screw; 397. Gasket; 398. Nut; 399. Gear; 4. Climbing assembly; 41. Handle; 42. U-shaped rod; 43. Rotating shaft; 44. Climbing ratchet. Detailed implementation mode

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Please refer to Figure 1-8 As shown in the figure, the present invention is a mobile scissor lift auxiliary lifting mechanism, including a bottom plate 1. A moving mechanism 2 is arranged at the bottom of the bottom plate 1, and a lifting mechanism 3 is arranged on the bottom plate 1. The moving mechanism 2 includes a main pressure rod 21 and a secondary pressure rod 22. There are two main pressure rods 21 and two secondary pressure rods 22. A first connecting rod 23 is fixedly connected between the two main pressure rods 21. A hook lock assembly 24 is movably connected to the main pressure rod 21. A synchronous connecting rod 25 is movably connected between the two hook lock assemblies 24. A second connecting rod 26 is fixedly connected between the two secondary pressure rods 22. A fixed bolt 27 is fixedly connected to one side of the secondary pressure rod 22. The main pressure rod 21 and the secondary pressure rod 22 are both movably connected to the bottom of the bottom plate 1 through a stabilizing assembly 28. Universal wheels 29 are fixedly connected to the bottoms of the main pressure rod 21 and the secondary pressure rod 22.

[0029] The hook lock assembly 24 includes a hook 241. A spring 242 is fixedly connected to the hook 241. One end of the spring 242 is fixedly connected to a connecting plate 243. The connecting plate 243 is fixedly connected to the main pressure rod 21. Both of the two hooks 241 are fixedly connected to the synchronous connecting rod 25.

[0030] The stabilizing component 28 includes a ratchet rod 281. There are four ratchet rods 281. One ends of the four ratchet rods 281 are fixedly connected to the bottom of the bottom plate 1. A limiting ring 282 is fixedly connected to the ratchet rod 281. A sleeve 283 is slidably connected to the outer surface of the ratchet rod 281. A climbing tube 284 and a fixed tube 285 are respectively fixedly connected to the sleeve 283. A climbing groove 286 and a fixed groove 287 are respectively formed through the sleeve 283. A fixed pawl 288 is rotatably connected inside the fixed tube 285. The climbing tube 284 communicates with the climbing groove 286, and the fixed tube 285 communicates with the fixed groove 287. The fixed pawl 288 meshes with the ratchet rod 281. A climbing component 4 is movably connected inside the climbing tube 284.

[0031] The climbing component 4 includes a handle 41. One end of the handle 41 is fixedly connected to a U-shaped rod 42. The U-shaped rod 42 is rotatably connected inside the climbing tube 284. A rotating shaft 43 is rotatably connected to the inner side of the U-shaped rod 42. A climbing pawl 44 is rotatably connected to the rotating shaft 43. The climbing pawl 44 meshes with the ratchet rod 281.

[0032] Both the main pressure rod 21 and the secondary pressure rod 22 are rotatably connected to the sleeve 283.

[0033] Press down the main pressure rod 21 and the secondary pressure rod 22 and lock them, so that the universal wheels 29 contact the ground, thus facilitating the movement of the device. Push the synchronous connecting rod 25 to drive the hook 241 into the locked state. The self-weight of the device causes the sleeve 283 to press down, forcing the main pressure rod 21 and the secondary pressure rod 22 to lift the universal wheels 29 upwards, thereby stabilizing the device. The first connecting rod 23, the second connecting rod 26 and the synchronous connecting rod 25 make the movements on both sides synchronous. The heights of the four sleeves are adjusted through the ratchet rod 281, the climbing pawl 44 and the fixed pawl 288 to adjust the device to cope with uneven roads, making the device more adaptable and more convenient for outdoor operation.

[0034] The lifting mechanism 3 includes a first motor 31 and a support plate 32. A sliding rod 33 is fixedly connected to the bottom of the support plate 32. There are four sliding rods 33. Sleeve rods 34 are slidably connected to the surfaces of the four sliding rods 33. One ends of the sleeve rods 34 are fixedly connected to the top of the bottom plate 1. The first motor 31 is fixedly installed on one side of the bottom plate 1 through a mounting plate 35. The output end of the first motor 31 is fixedly connected to a bidirectional lead screw 36. Both ends of the bidirectional lead screw 36 are rotatably connected to fixed blocks 37. The two fixed blocks 37 are fixedly connected to the bottom plate 1. A support component 38 is movably connected to the bidirectional lead screw 36. There are two support components 38 symmetrically arranged. An adjusting component 39 is movably connected to the top of the support plate 32.

[0035] The support assembly 38 includes a third connecting rod 381, two third connecting rods 381 are symmetrically arranged, a moving block 382 is fixedly connected between the two third connecting rods 381, the moving block 382 is threadedly connected to the outer surface of the bidirectional screw rod 36, one end of the two third connecting rods 381 is rotatably connected to the fourth connecting rod 383, and one end of the two fourth connecting rods 383 is rotatably connected to the bottom of the support plate 32.

[0036] The adjustment component 39 includes a support plate 391 and a second motor 392. The arc surface of the support plate 391 is fixedly connected with an arc rack 393. The arc surface of the support plate 391 is slidably connected with an arc bridge 394. Two arc bridges 394 are symmetrically arranged. The two arc bridges 394 are both fixedly connected to the top of the base plate 1. A slide groove 395 is opened through the top of the arc bridge 394. A screw rod 396 is slidably connected in the slide groove 395. One end of the screw rod 396 is fixedly connected to the bottom of the support plate 391. A gasket 397 is sleeved on the screw rod 396. A nut 398 is threadedly connected to the screw rod 396. The second motor 392 is fixedly installed on the top of the support plate 32. The output end of the second motor 392 is fixedly connected with a gear 399, and the gear 399 is meshed with the arc rack 393.

[0037] The input ends of the first motor 31 and the second motor 392 are connected to an external power supply, and the bidirectional lead screw 36 is used to adjust the angle of the fourth connecting rod 383 so that the height adjustment of the device is more precise. At the same time, the meshing relationship between the gear 399 and the arc-shaped rack 393 is coordinated to realize the adjustment of the tilt angle of the device and reduce the error of the device.

[0038] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0039] The working principle of the present invention is as follows: the main pressure rod 21 is pressed down, and the slave pressure rod 22 is pressed down accordingly, so that the universal wheel 29 contacts the ground, the hook 241 squeezes the fixing bolt 27, pulls the spring 242 and rotates, and randomly hooks the fixing bolt 27 under the action of the spring 242, and the pushing device can move, pushing the synchronous connecting rod 25 away from the spring 242 and making the hook 241 disengage from the fixing bolt 27 to release the lock, and the self-weight of the device makes the main pressure rod 21 and the slave pressure rod 22 rotate and drive the universal wheel 29 upward away from the ground , the device stabilizes, and the handle 21 is pressed to drive the U-shaped rod 42, the rotating shaft 43 and the climbing pawl 44 to move upward. The climbing pawl 44 engages with the ratchet rod 281 to push the ratchet rod 281 upward, and the fixed pawl 288 slides on the surface of the ratchet rod 281. Every time the ratchet rod 281 moves upward, when the handle 21 is lifted, the fixed pawl 288 just engages with the ratchet rod 281 to fix it. By adjusting the distance between the four sleeves 283 and the four ratchet rods 281, it can adapt to the uneven ground.

[0040] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0041] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mobile scissor lift auxiliary lifting mechanism, comprising a base plate (1), characterized in that: A moving mechanism (2) is provided at the bottom of the base plate (1), and a lifting mechanism (3) is provided on the base plate (1); The moving mechanism (2) comprises a main pressure rod (21) and a slave pressure rod (22), wherein two main pressure rods (21) and two slave pressure rods (22) are provided, a first connecting rod (23) is fixedly connected between the two main pressure rods (21), a hook lock assembly (24) is movably connected to the main pressure rod (21), a synchronous connecting rod (25) is movably connected between the two hook lock assemblies (24), a second connecting rod (26) is fixedly connected between the two slave pressure rods (22), a fixing bolt (27) is fixedly connected to one side of the slave pressure rod (22), the main pressure rod (21) and the slave pressure rod (22) are both movably connected to the bottom of the base plate (1) through a stabilizing assembly (28), and the bottoms of the main pressure rod (21) and the slave pressure rod (22) are both fixedly connected to universal wheels (29).

2. The auxiliary lifting mechanism of a mobile scissor lift according to claim 1, characterized in that: The hook lock assembly (24) comprises a hook (241), a spring (242) is fixedly connected to the hook (241), one end of the spring (242) is fixedly connected to a connecting plate (243), the connecting plate (243) is fixedly connected to the main pressure rod (21), and the two hooks (241) are fixedly connected to the synchronous connecting rod (25).

3. The auxiliary lifting mechanism of a mobile scissor lift according to claim 1, characterized in that: The stabilizing assembly (28) comprises a ratchet rod (281), four ratchet rods (281) are provided, one end of each of the four ratchet rods (281) is fixedly connected to the bottom of the base plate (1), a limiting ring (282) is fixedly connected to the ratchet rod (281), a sleeve (283) is slidably connected to the outer surface of the ratchet rod (281), a climbing tube (284) and a fixing tube (285) are respectively fixedly connected to the sleeve (283), and the sleeve A climbing groove (286) and a fixed groove (287) are respectively formed through the fixing tube (283); a fixed pawl (288) is rotatably connected inside the fixing tube (285); the climbing tube (284) is connected to the climbing groove (286); the fixing tube (285) is connected to the fixed groove (287); the fixed pawl (288) is meshed with the ratchet rod (281); and a climbing assembly (4) is movably connected inside the climbing tube (284).

4. The auxiliary lifting mechanism of a mobile scissor lift according to claim 3, characterized in that: The climbing assembly (4) comprises a handle (41), one end of which is fixedly connected to a U-shaped rod (42), the U-shaped rod (42) being rotatably connected to the inside of a climbing tube (284), the inner side of the U-shaped rod (42) being rotatably connected to a rotating shaft (43), the rotating shaft (43) being rotatably connected to a climbing pawl (44), the climbing pawl (44) being meshed with a ratchet rod (281).

5. The auxiliary lifting mechanism of a mobile scissor lift according to claim 3, characterized in that: The main pressure rod (21) and the slave pressure rod (22) are both rotatably connected to the sleeve (283).

6. The auxiliary lifting mechanism of a mobile scissor lift according to claim 1, characterized in that: The lifting mechanism (3) comprises a first motor (31) and a support plate (32). The bottom of the support plate (32) is fixedly connected with a sliding rod (33). Four sliding rods (33) are provided. The surfaces of the four sliding rods (33) are slidably connected with sleeve rods (34). One end of the sleeve rod (34) is fixedly connected to the top of the base plate (1). The first motor (31) is fixedly mounted on one side of the base plate (1) through a mounting plate (35). The output end of the first motor (31) is fixedly connected with a bidirectional screw rod (36). Both ends of the bidirectional screw rod (36) are rotatably connected with fixed blocks (37). Two fixed blocks (37) are fixedly connected to the base plate (1). A support assembly (38) is movably connected to the bidirectional screw rod (36). Two support assemblies (38) are symmetrically provided. The top of the support plate (32) is movably connected with an adjustment assembly (39).

7. The auxiliary lifting mechanism of a mobile scissor lift according to claim 6, characterized in that: The support assembly (38) includes a third connecting rod (381), two of which are symmetrically arranged, a moving block (382) is fixedly connected between the two third connecting rods (381), and the moving block (382) is threadedly connected to the outer surface of the bidirectional screw rod (36), one end of the two third connecting rods (381) is rotatably connected to the fourth connecting rod (383), and one end of the two fourth connecting rods (383) is rotatably connected to the bottom of the support plate (32).

8. The auxiliary lifting mechanism of a mobile scissor lift according to claim 6, characterized in that: The adjusting assembly (39) comprises a support plate (391) and a second motor (392); the arc surface of the support plate (391) is fixedly connected to an arc-shaped rack (393); the arc surface of the support plate (391) is slidably connected to an arc-shaped bridge (394); two arc-shaped bridges (394) are symmetrically arranged; the two arc-shaped bridges (394) are both fixedly connected to the top of the bottom plate (1); a slide groove (395) is provided through the top of the arc-shaped bridge (394); and the slide groove (395) is slidably connected to the bottom plate (1). The second motor (392) is movably connected to the support plate (32), one end of the screw rod (396) is fixedly connected to the bottom of the support plate (391), a gasket (397) is sleeved on the screw rod (396), a nut (398) is threadedly connected to the screw rod (396), the second motor (392) is fixedly installed on the top of the support plate (32), the output end of the second motor (392) is fixedly connected to a gear (399), and the gear (399) is meshed with the arc-shaped rack (393).

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