Mother-son type lifting machine

Abstract

The utility model relates to the technical field of automobile lifting equipment, and provides a primary-secondary type lifting machine which comprises a lifting platform, the lifting platform comprises at least one group of primary shear platforms, the bottom of each primary shear platform is provided with a primary shear arm and a base, each primary shear arm is provided with a primary lifting assembly, and each primary lifting assembly comprises a primary shear master oil cylinder and a primary shear slave oil cylinder; the female shear arm is further provided with a safety assembly. The safety assembly comprises a full rack, a locking frame and an unlocking block. Compared with the prior art, the safety assembly can provide first protection for the female shear platform, after the female shear platform ascends, the teeth on the locking frame can clamp the full rack, and when the female shear platform needs to be lowered, the locking frame ascends by a certain distance, the unlocking block rotates under the action of gravity to block the teeth, and the locking frame can slide on the full rack.

Description

TECHNICAL FIELD

[0001] The utility model relates to automobile lifting equipment technical field especially, it relates to a mother -daughter type lift. BACKGROUND

[0002] The mother -daughter type lift is a commonly used automobile lifting equipment, and is commonly used in the maintenance industry of the automobile, the lift can lift the automobile to a certain height, and it is convenient for the maintenance personnel to detect, maintain and maintain the automobile.

[0003] The common mother -daughter type lift usually relies on the hydraulic system as the drive, relies on the hydraulic cylinder to make the automobile heighten, when the hydraulic system breaks down, the gravity of the automobile will force the lift to descend, in order to avoid the danger, the passive trigger safety device is usually arranged on the mother -daughter type lift, the safety device can avoid the lift to descend, but the existing safety device needs to add the unlocking device for unlocking extra, ensures that the lift can slowly descend under the control of the hydraulic system when necessary, since the unlocking device needs to quote the additional driving device, this will undoubtedly improve the failure probability when using, when the unlocking device breaks down, the hydraulic system will be difficult to control the normal descent of the lift, and since the lift is still in the lifting state, if the lift automatically descends in the maintenance process, this will cause danger to the maintenance personnel. SUMMARY

[0004] The utility model aims at providing a mother -daughter type lift, and aims at solving the problems that the existing safety device structure is complex and the maintenance process is tedious.

[0005] In order to reach the above -mentioned purpose, the utility model provides a mother -daughter type lift, including lifting platform, the lifting platform includes at least one group of mother -daughter type platform, the mother -daughter type platform bottom is provided with mother -daughter type arm and base, the base is used for fixing and installing the lifting platform on the ground, the mother -daughter type platform is connected with the base through the mother -daughter type arm, and a primary lifting assembly is arranged on the mother -daughter type arm, and the primary lifting assembly includes a mother -daughter type main oil cylinder and a mother -daughter type slave oil cylinder, the mother -daughter type main oil cylinder and the mother -daughter type slave oil cylinder are hinged with the mother -daughter type arm, the mother -daughter type arm is also provided with a safety assembly, the safety assembly includes a full rack, a locking frame and an unlocking block, the full rack is hinged below the mother -daughter type arm and is parallel with the mother -daughter type main oil cylinder, the locking frame is hinged above the mother -daughter type arm, the locking frame bottom is provided with the tooth that is in accord with the full rack, and the unlocking block is installed at the tooth through the pivot, the unlocking block is in the shape of a hook, the unlocking block is provided with a sliding part, and the sliding part is used to resist the full rack.

[0006] Further, the lifting platform comprises two groups of mother shear platforms arranged in parallel, a mother shear main oil cylinder and a mother shear slave oil cylinder are arranged on the mother shear arms below each group of the mother shear platforms, wherein the mother shear main oil cylinder of any one group of the mother shear platforms and the mother shear slave oil cylinder of another group of the mother shear platforms form an oil circuit, and the two oil circuits in the lifting platform are not communicated with each other; and the mother shear main oil cylinder and the mother shear slave oil cylinder are connected with explosion-proof valves.

[0007] Further, a sub-shear platform is arranged on the mother shear platform, the sub-shear platform is connected with the mother shear platform through a sub-shear arm, and a secondary lifting driving piece is further arranged between the sub-shear platform and the mother shear platform, and the secondary lifting driving piece is used for driving the sub-shear platform to rise or fall.

[0008] Further, a containing cavity for containing the sub-shear platform is arranged on the mother shear platform, and an explosion-proof valve is arranged on the secondary lifting driving piece.

[0009] Further, a detachable side sliding plate is arranged at the rear of the mother shear platform, a plurality of ball assemblies are arranged below the side sliding plate, and the ball assemblies are fixedly arranged on the mother shear platform.

[0010] Further, the side sliding plate is slidably connected with the mother shear platform, a bolt is arranged on the side sliding plate, and the bolt is used for fixing the side sliding plate on the mother shear platform.

[0011] Further, a rotating disc and a plurality of adjusting blocks are arranged at the front end of the mother shear platform, and the lengths of the adjusting blocks are different.

[0012] Further, a cover plate is further arranged on the mother shear platform, and the cover plate is used for covering the rotating disc.

[0013] Compared with the prior art, the safety assembly can provide the first heavy protection for the mother shear platform, when the mother shear platform rises, the teeth on the locking frame can be clamped on the full rack, when the mother shear platform needs to be lowered, the locking frame rises by a distance, the unlocking block is rotated to block the teeth under the action of gravity, so that the locking frame can slide on the full rack; the oil circuit formed by the staggered connection of the mother shear main oil cylinder and the mother shear slave oil cylinder can provide another heavy protection for the mother shear platform, even if any one oil circuit leaks, the mother shear main oil cylinder and the mother shear slave oil cylinder in another oil circuit can still provide power for the mother shear platform, and the explosion-proof valves on the mother shear main oil cylinder and the mother shear slave oil cylinder can maintain stability in the oil circuit when leakage occurs, so that the hydraulic oil is prevented from leaking too fast. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a perspective view of the utility model;

[0015] Figure 2 is an exploded view of the utility model;

[0016] Figure 3is the explosion view of the safety assembly in the utility model;

[0017] Figure 4 is the explosion view of the sub-scissor platform in the utility model;

[0018] Figure 5 is the clamping view of the safety assembly in the utility model;

[0019] Figure 6 is the lifting process view of the safety assembly in the utility model;

[0020] Figure 7 is the lowering process view of the safety assembly in the utility model.

[0021] Mark explanation:

[0022] Among them;

[0023] 1, the mother scissor platform;10, the ball assembly;11, the side slide plate;12, the bolt;13, the turntable;14, the adjusting block;15, the cover plate;

[0024] 2, the mother scissor arm;

[0025] 3, the base;

[0026] 4, the first lifting assembly;40, the mother scissor main oil cylinder;41, the mother scissor from oil cylinder;42, the explosion-proof valve;

[0027] 5, the safety assembly;50, the full rack;51, the locking frame;52, the tooth;53, the unlocking block;54, the sliding part;

[0028] 6, the sub-scissor platform;60, the sub-scissor arm;61, the second lifting driving part;62, the accommodating cavity. Specific implementation

[0029] The utility model will be explained in detail in combination with specific embodiments.

[0030] In the utility model, except for another explicit provision and limitation, when the terms such as " set in " " connect " " connect " appear, these terms should be understood in a broad sense, for example, can be fixedly connected, detachably connected or integrally connected;It can be directly connected or connected through one or more intermediate media. For those skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances. For the direction words appearing in the utility model, in order to better explain the characteristics of the features and the relationship between the features, it should be understood that when the display direction of the utility model changes, the characteristics of the features and the relationship between the features also change correspondingly. Therefore, the direction word does not constitute the absolute limitation of the characteristics of the features and the relationship between the features in space, and only plays a relative limiting role.

[0031] As Figures 1 to 7 shown, the utility model provides a kind of mother formula lifting machine, including lifting platform, lifting platform includes at least one group of mother shear platform 1, mother shear platform 1 bottom is provided with mother shear arm 2 with base 3, base 3 is used to be fixedly installed on ground with lifting platform, mother shear platform 1 is connected with base 3 by mother shear arm 2, it is provided with one-stage lifting assembly 4 on mother shear arm 2, one-stage lifting assembly 4 includes mother shear main cylinder 40 and mother shear slave cylinder 41, mother shear main cylinder 40 and mother shear slave cylinder 41 are all hinged with mother shear arm 2;It is also provided with safety assembly 5 on mother shear arm 2, safety assembly 5 includes full rack 50, locking frame 51 and unlocking block 53, full rack 50 is hinged below mother shear arm 2 and with mother shear main cylinder 40 each other parallel, locking frame 51 is hinged above mother shear arm 2, locking frame 51 bottom is provided with the tooth 52 that is in accord with full rack 50, unlocking block 53 is installed at tooth 52 by pivot;Unlocking block 53 is like a hook, unlocking block 53 is provided with sliding part 54, sliding part 54 is used to resist full rack 50.

[0032] Through the above design scheme, mother shear platform 1 is elevated at the same time locking frame 51 will rise with mother shear arm 2, the tooth 52 on locking frame 51 can be stuck on the tooth block on full tooth 52, avoid that mother shear platform 1 automatically drops down, and the unlocking block 53 on locking frame 51 will also be stuck on tooth block, further enhance the locking strength of locking frame 51 (as Figure 5 shown);When needing to release locking and descend mother shear platform 1, one-stage lifting assembly 4 drives mother shear platform 1 to rise the distance of half group tooth block, under the action of gravity, unlocking block 53 automatically swings a certain angle and makes sliding part 54 change from the state that full rack 50 is completely resisted to the state that only hooks the outside of full rack 50 (as Figure 6 shown), at this time, mother shear platform 1 drops down, unlocking block 53 automatically rotates and is resisted to tooth 52 (as Figure 7 shown), avoid that tooth 52 is stuck on full rack 50, ensure that mother shear platform 1 cannot drop down;And when needing to rise again, mother shear platform 1 can be directly lifted, unlocking block 53 will automatically swing under the action of gravity, re-enters locking state.It is completely relied on gravity that unlocking block 53 swings freely, need not to introduce power piece to unlock, can reduce the probability of accident occurrence, improve the stability of overall system.

[0033] In the embodiment, lifting platform includes two groups of two groups of mother shear platform 1 arranged in parallel, and the mother shear main cylinder 40 and the mother shear slave cylinder 41 are installed on the mother shear arm 2 below each group of mother shear platform 1, wherein the mother shear main cylinder 40 of any one group of mother shear platform 1 and the mother shear slave cylinder 41 of another group of mother shear platform 1 form an oil circuit, and the two oil circuits in the lifting platform are not communicated with each other; the mother shear main cylinder 40 and the mother shear slave cylinder 41 are connected with the explosion-proof valve 42.

[0034] Through the above design scheme, the staggered connection of the main shear master oil cylinder 40 and the main shear slave oil cylinder 41 can simultaneously provide driving for the two groups of main shear platforms 1, and the hydraulic pump can simultaneously pump the hydraulic oil in the oil tank into the main shear master oil cylinder 40 and the main shear slave oil cylinder 41 in the two groups of main shear platforms 1, so that the two groups of main shear platforms 1 are synchronously lifted; since each group of main shear platforms 1 is provided with a group of main shear master oil cylinders 40 and a group of main shear slave oil cylinders 41, even if the main shear master oil cylinder 40 leaks, the main shear slave oil cylinder 41 on the other group of main shear platforms 1 can still provide support, so that the main shear platform 1 can still work normally for a certain period of time, and danger is avoided. The explosion-proof valve 42 on the main shear master oil cylinder 40 and the main shear slave oil cylinder 41 can provide another protection for the main shear master oil cylinder 40 and the main shear slave oil cylinder 41, isolate the main shear master oil cylinder 40 and the main shear slave oil cylinder 41 from the leaking oil circuit, and avoid the passive lowering of the main shear platform 1 under the gravity of the automobile.

[0035] In the embodiment, the main shear platform 1 is provided with a sub-shear platform 6, the sub-shear platform 6 is connected with the main shear platform 1 through a sub-shear arm 60, and a secondary lifting driving member 61 is further arranged between the sub-shear platform 6 and the main shear platform 1. The secondary lifting driving member 61 is used to drive the sub-shear platform 6 to rise or lower.

[0036] In the embodiment, the main shear platform 1 is provided with a containing cavity 62 for containing the sub-shear platform 6, and the secondary lifting driving member 61 is provided with an explosion-proof valve 42.

[0037] Through the above design scheme, the secondary lifting driving member 61 controls the sub-shear platform 6 to rise from the containing cavity 62 or lower into the containing cavity 62, and the sub-shear platform 6 can be used for secondary lifting of the automobile, so that the automobile is lifted by a certain distance on the main shear platform 1, and the staff can conveniently add repair equipment on the main shear platform 1. The explosion-proof valve 42 on the secondary lifting driving member 61 can protect the secondary lifting driving member 61, so as to avoid danger caused by rapid contraction of the secondary lifting driving member 61 when the oil circuit of the secondary lifting driving member 61 leaks.

[0038] In the embodiment, a detachable side sliding plate 11 is arranged at the rear of the main shear platform 1, a plurality of ball assembly groups 10 are arranged below the side sliding plate 11, and the ball assembly groups 10 are fixedly installed on the main shear platform 1.

[0039] In the embodiment, the side sliding plate 11 is in sliding connection with the main shear platform 1, the side sliding plate 11 is provided with a bolt 12, and the bolt 12 is used to fix the side sliding plate 11 on the main shear platform 1.

[0040] Through the design scheme, the automobile rear wheel can roll on the mother shear platform 1 through the ball assembly 10 behind the mother shear platform 1, in general, the side slide plate 11 is installed on the mother shear platform 1, and the side slide plate 11 can be fixed after the bolt 12 is inserted, when the automobile rear wheel needs to be detected, the automobile is lifted by the sub shear platform 6, then the bolt 12 is pulled out and the side slide plate 11 is pulled out, and the automobile is lowered to make the rear wheel fall on the ball assembly 10; when the automobile needs to be driven off the mother shear platform 1, the automobile is lifted by the sub shear platform 6, the side slide plate 11 is inserted into the mother shear platform 1, and the bolt 12 is inserted to make the rear of the mother shear platform 1 recover flat.

[0041] In the embodiment, the mother shear platform 1 is provided with a rotating disc 13 and a plurality of adjusting blocks 14 at the front end.

[0042] Through the design scheme, the rotating disc 13 can be used for supporting the automobile front wheel and enabling the front wheel to rotate on the mother shear platform 1, since the front wheel is difficult to directly align the rotating disc 13 when the vehicle is on the mother shear platform 1, the maintenance personnel can wait for the automobile to stop and adjust the position of the rotating disc 13, and the adjusting blocks 14 with different lengths can fix the rotating disc 13 to any position in front of the mother shear platform 1, thereby facilitating the front wheel parked at different positions.

[0043] In the embodiment, the mother shear platform 1 is further provided with a cover plate 15, and the cover plate 15 is used for covering the rotating disc 13.

[0044] Through the design scheme, after the rotating disc 13 is covered by the cover plate 15, the height of the cover plate 15 is flat with the height of the mother shear platform 1, thereby facilitating the automobile to move on the mother shear platform 1, and when the rotating disc 13 needs to be used, the maintenance personnel can take the opportunity to remove the cover plate 15 during the lifting of the automobile by the sub shear platform 6, and then adjust the position of the rotating disc 13 through the adjusting block 14, so as to ensure that the rotating disc 13 aligns with the front wheel.

[0045] Compared with the prior art, the safety assembly 5 can provide the first heavy protection for the mother shear platform 1, when the mother shear platform 1 is lifted, the teeth 52 on the locking frame 51 can be clamped on the full rack 50, when the mother shear platform 1 needs to be lowered, the locking frame 51 is lifted by a distance, the unlocking block 53 is rotated to block the teeth 52 under the action of gravity, so that the locking frame 51 can slide on the full rack 50; the oil path formed by the staggered connection of the mother shear main oil cylinder 40 and the mother shear slave oil cylinder 41 can provide another heavy protection for the mother shear platform 1, even if any one oil path leaks, the mother shear main oil cylinder 40 and the mother shear slave oil cylinder 41 in another oil path can still provide power for the mother shear platform 1, and the explosion-proof valve 42 on the mother shear main oil cylinder 40 and the mother shear slave oil cylinder 41 can maintain stability in the oil path when leakage occurs, so as to avoid too fast leakage of hydraulic oil.

[0046] In the case of no conflict, the above-mentioned embodiments and features in the embodiments can be combined with each other.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not limited to the scope of the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the essence and scope of the present application.

Claims

1. A parent-child lift comprising a lifting platform, characterized in that: The lifting platform comprises at least one group of mother cutting platforms (1), the bottom of the mother cutting platform (1) is provided with a mother cutting arm (2) and a base (3), the base (3) is used for fixing and installing the lifting platform on the ground, the mother cutting platform (1) is connected with the base (3) through the mother cutting arm (2), a first lifting assembly (4) is arranged on the mother cutting arm (2), the first lifting assembly (4) comprises a mother cutting main oil cylinder (40) and a mother cutting slave oil cylinder (41), the mother cutting main oil cylinder (40) and the mother cutting slave oil cylinder (41) are hingedly connected with the mother cutting arm (2); an insurance assembly (5) is further arranged on the mother cutting arm (2), the insurance assembly (5) comprises a full rack (50), a locking frame (51) and an unlocking block (53), the full rack (50) is hingedly connected below the mother cutting arm (2) and is parallel to the mother cutting main oil cylinder (40), the locking frame (51) is hingedly connected above the mother cutting arm (2), the bottom of the locking frame (51) is provided with teeth (52) matched with the full rack (50), and the unlocking block (53) is installed at the teeth (52) through a rotating shaft; the unlocking block (53) is in the shape of a hook, a sliding part (54) is arranged on the unlocking block (53), and the sliding part (54) is used for abutting against the full rack (50).

2. A master / slave lift according to claim 1, characterized in that: The lifting platform comprises two groups of mother cutting platforms (1) arranged in parallel, the mother cutting main oil cylinder (40) and the mother cutting slave oil cylinder (41) are arranged on the mother cutting arm (2) below each group of mother cutting platforms (1), wherein the mother cutting main oil cylinder (40) of any one group of mother cutting platforms (1) and the mother cutting slave oil cylinder (41) of the other group of mother cutting platforms (1) constitute an oil circuit, and the two oil circuits in the lifting platform are not communicated with each other; the mother cutting main oil cylinder (40) and the mother cutting slave oil cylinder (41) are connected with an explosion-proof valve (42).

3. The master / slave lift according to claim 1, wherein: The mother cutting platform (1) is provided with a son cutting platform (6), the son cutting platform (6) is connected with the mother cutting platform (1) through a son cutting arm (60), and a second lifting driving piece (61) is further arranged between the son cutting platform (6) and the mother cutting platform (1), and the second lifting driving piece (61) is used for driving the son cutting platform (6) to rise or fall.

4. The master / slave lift of claim 1, wherein: The mother cutting platform (1) is provided with a containing cavity (62) for containing the son cutting platform (6), and the second lifting driving piece (61) is provided with an explosion-proof valve (42).

5. The master / slave lift of claim 1, wherein: A detachable side sliding plate (11) is arranged at the rear of the mother cutting platform (1), a plurality of ball assembly (10) are arranged below the side sliding plate (11), and the ball assembly (10) is fixedly installed on the mother cutting platform (1).

6. A master / slave lift according to claim 5, characterized in that: The side sliding plate (11) is slidingly connected with the mother cutting platform (1), a bolt (12) is arranged on the side sliding plate (11), and the bolt (12) is used for fixing the side sliding plate (11) on the mother cutting platform (1).

7. The master / slave lift of claim 1, wherein: A turntable (13) and a plurality of adjusting blocks (14) are arranged at the front end of the mother cutting platform (1), the lengths of the plurality of adjusting blocks (14) are different.

8. A master / slave lift according to claim 7, characterized in that: A cover plate (15) is further arranged on the mother cutting platform (1), and the cover plate (15) is used for covering the turntable (13).

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