Scissor lift with rolling type lever connecting component

Abstract

The utility model relates to the technical field of lifting machines, and discloses a shear type lifting machine with a rolling type lever connecting component, which solves the problems in the background technology, and comprises a top plate, an upper end shear arm, a lifting machine shaft pin, a lower end shear arm, an oil cylinder system and a bottom bracket which are connected in sequence, and further comprises a reinforcing plate structure and a connecting bridge structure, in the initial stage of lifting work of the lifting machine, the piston rod of the hydraulic oil cylinder pushes the connecting bridge provided with the idler wheel structure, the shear arm moves more easily under the support of the connecting bridge, the hydraulic oil cylinder overcomes the process of difficult work in the early stage, and therefore pressure borne by the hydraulic oil cylinder is relieved; the synchronous shear arms on the two sides of the shear type lifting machine work, it is guaranteed that lifting platforms on the two sides of the shear type lifting machine are located at the same horizontal height, the situation that lifting vehicles roll over due to height deviation of top plates on the two sides of the shear type lifting machine is prevented, and the personal safety of surrounding workers is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to lifting machine technical field, concretely is a kind of scissor lifting machine with rollable lever connecting component. BACKGROUND

[0002] Scissor lifting machine is the automobile repair machinery for automobile repair industry, generally drives lifting by hydraulic system, therefore also called hydraulic lifting machine, scissor lifting machine plays the vital role in automobile maintenance, whole vehicle overhaul and maintenance cannot do without scissor lifting machine, under normal circumstances, scissor lifting machine one side lifting platform exists upper and lower two-section fork type shear arm, and there are left and right two groups of such structures, in upper two-section fork type shear arm, there is the connecting shaft or the form of connecting shaft and reinforcing rib combination connecting hydraulic oil cylinder and left and right two-section shear arm, the structure first plays the role of lever connection, can make shear arm pass through the connecting shaft or connecting component to the force that hydraulic oil cylinder transmits to shear arm, make shear arm rise upwards, in turn make lifting platform rise, secondly, it plays the role of supporting fulcrum after lifting machine platform rises load, can make lifting platform load too large after upward lifting process more stable and smooth.

[0003] The existing scissor lifting machine lever connecting piece, generally single connecting shaft or reinforcing rib is assembled on the basis of connecting shaft, the existing component cannot guarantee that one side lifting platform exists obstacle after lifting load, two sides lifting platform stops at the same time and horizontal height is same when lifting. When scissor lifting machine descends, two sides lifting platform are located at the same height, when descending, when the obstacle exists under the lifting platform of one side, the lifting platform stops descending due to the resistance of obstacle, the hydraulic oil cylinder of the lifting platform of the other side still continues to work, and the platform continues to descend, and then the lifting platforms of two sides will not be at the same height, and the load will be tilted, which can cause dangerous accidents to surrounding workers, therefore, the utility model provides a scissor lifting machine with rollable lever connecting component. UTILITY MODEL CONTENTS

[0004] In order to solve the existing problems of scissor lifting machine, the utility model provides the following technical scheme: a scissor lifting machine with rollable lever connecting component, which comprises top plate, upper end shear arm, lifting machine shaft pin, lower end shear arm, oil cylinder system and bottom support connected in sequence, and further comprises reinforcing plate structure and connecting bridge structure, the top end of the reinforcing plate structure is rotatably connected to the telescopic end of the oil cylinder system, the bottom end of the reinforcing plate structure is rotatably connected to the lifting machine shaft pin through the connecting bridge structure, the first connecting plate is arranged in the middle of the upper end shear arm, the reinforcing plate structure is arranged below the first connecting plate, the reinforcing plate structure is slidably connected to the middle of the upper end shear arm on both sides, and the telescopic end of the oil cylinder system can drive the reinforcing plate structure to stand up and contact the first connecting plate.

[0005] Preferably, the reinforcing plate structure comprises first vertical plates, three shaft holes are sequentially arranged on the first vertical plates along the length direction, four first vertical plates are arranged in parallel and concentrically, first shaft pins are fixedly inserted into the shaft holes at the middle positions of the four first vertical plates, shaft pin heads are arranged at the two ends of the first shaft pins, the shaft pin heads are provided with stop washers outside the first vertical plates, a sliding groove is arranged on the upper end of the shear arm, and the two ends of the shaft pin heads are slidably connected into the sliding groove.

[0006] Preferably, second shaft pins are fixedly inserted into the shaft holes at the lower ends of the middle two first vertical plates, and the second shaft pins are rotatably connected with one end of the connecting bridge structure.

[0007] Preferably, third shaft pins are inserted into the shaft holes at the upper ends of the four first vertical plates, and the two ends of the third shaft pins are located outside the reinforcing plate structure and are respectively sleeved with first clamping springs.

[0008] Preferably, the middle part of the third shaft pin is rotatably connected with the telescopic end of the oil cylinder system.

[0009] Preferably, fourth shaft pins are connected at the positions on the two sides of the lower ends of the first vertical plates, first rollers and second rollers are rotatably sleeved with the fourth shaft pins in the circumferential direction, and second clamping springs are fixedly sleeved with the outer ends of the fourth shaft pins.

[0010] Preferably, intervals are arranged between the four first vertical plates, and bent plates are fixedly welded in the intervals on the two sides.

[0011] Preferably, the reinforcing plate structure is provided with a mounting groove on one side of the first connecting plate, and a second connecting plate is fixedly welded in the mounting groove.

[0012] Preferably, the connecting bridge structure comprises a forward vertical plate, reverse vertical plates are arranged on the two sides of the forward vertical plate, threaded holes are arranged on the forward vertical plate and the two reverse vertical plates, the threaded holes are connected through first screws, a third roller is mounted on one end of the two reverse vertical plates through a second screw and a bolt, the second shaft pin is rotatably connected with one end of the third roller of the connecting bridge structure, and the other end of the connecting bridge structure is rotatably connected with the shaft pin of the lifting machine.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] The multiple connecting plate structure is adopted on the connecting structure, multiple intermediate connecting structures are opened, and internal welding connection is carried out, the overall connecting property is strengthened, the multiple lever, multiple connecting shaft and multiple reinforcing rib are integrated into one, the connecting bridge design is increased, the shear arm is more easily moved in the initial stage of the lifting machine rising work with the pushing of the hydraulic oil cylinder and the transmission of the connecting bridge, the connecting bridge component is increased, the shear lifting machine two side top plates are ensured to work or hover at the same time, the shear lifting machine two side lifting platforms are ensured to be at the same horizontal height, the shear lifting machine two side top plates are prevented from being lifted or lowered at different times to cause the lifting vehicle to roll over, and then the personal safety of the surrounding workers is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, illustrate the present application and explain the present application together with the embodiments of the present application, and do not constitute a limitation of the present application. In the drawings:

[0016] Fig. 1 It is a whole connecting relationship schematic view of the component of the present application on the shear lifting machine;

[0017] Fig. 2 It is a whole schematic view of the present application;

[0018] Fig. 3 It is a top view schematic view of the reinforcing plate structure of the present application;

[0019] Fig. 4 It is an explosion schematic view of the reinforcing plate structure of the present application;

[0020] Fig. 5 It is a top view schematic view of the connecting bridge structure of the present application;

[0021] Fig. 6 It is an explosion schematic view of the connecting bridge structure of the present application;

[0022] In the drawings: 1, top plate; 2, first shaft pin; 3, lower end shear arm; 4, bottom support; 5, oil cylinder system; 6, upper end shear arm; 6-01, first connecting plate; 6-02, sliding groove; 7, reinforcing plate structure; 8, connecting bridge structure; 7-01, first vertical plate; 7-02, third shaft pin; 7-03, first clasp spring; 7-04, second connecting plate; 7-05, check ring; 7-06, second clasp spring; 7-07, first roller; 7-08, second shaft pin; 7-09, second roller; 7-10, bent plate; 7-11, first shaft pin; 7-12, shaft pin head; 7-13, fourth shaft pin; 8-01, forward vertical plate; 8-02, reverse vertical plate; 8-03, first screw; 8-04, third roller; 8-05, second screw; 8-06, bolt. DETAILED DESCRIPTION

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] Depend on Figs. 1-3 The present invention comprises a top plate 1, an upper scissor arm 6, a lift shaft pin 2, a lower scissor arm 3, a hydraulic cylinder system 5, and a base bracket 4 connected in sequence. It also includes a reinforcing plate structure 7 and a connecting bridge structure 8. The top end of the reinforcing plate structure 7 is rotatably connected to the telescopic end of the hydraulic cylinder system 5, and the bottom end of the reinforcing plate structure 7 is rotatably connected to the lift shaft pin 2 through the connecting bridge structure 8. A first connecting plate 6-01 is provided in the middle of the upper scissor arm 6, and the reinforcing plate structure 7 is located below the first connecting plate 6-01. The two sides of the reinforcing plate structure 7 are slidably connected to the middle of the upper scissor arm 6. The extension of the telescopic end of the hydraulic cylinder system 5 can drive the reinforcing plate structure 7 to stand up and contact the first connecting plate 6-01.

[0025] The reinforcing plate structure 7 includes a first upright plate 7-01. The first upright plate 7-01 has three shaft holes sequentially opened along its length. There are four first upright plates 7-01. The four shaft holes of the first upright plates 7-01 are arranged concentrically and parallel to each other. A first shaft pin 7-11 is fixedly inserted into the shaft hole in the middle part of the four first upright plates 7-01. The first shaft pin 7-11 has a shaft pin head 7-12 at both ends. A retaining ring 7-05 is installed on the outer side of the shaft pin head 7-12. A sliding groove 6-02 is opened on the upper shear arm 6. The two ends of the shaft pin head 7-12 are slidably connected in the sliding groove 6-02.

[0026] The two middle first upright plates 7-01 are fixedly inserted into the shaft holes at the lower end of the second shaft pins 7-08, and the second shaft pins 7-08 are rotatably connected to one end of the connecting bridge structure 8.

[0027] The upper ends of the four first upright plates 7-01 are fitted with third shaft pins 7-02. The two ends of the third shaft pins 7-02 are located on the outside of the reinforcing plate structure 7 and are respectively fitted with first retaining rings 7-03.

[0028] The middle part of the third shaft pin 7-02 is rotatably connected to the telescopic end of the hydraulic cylinder system 5.

[0029] The lower ends of the first vertical plate 7-01 are connected to the two sides of the fourth shaft pin 7-13 respectively. The two fourth shaft pins 7-13 are respectively rotatably sleeved with the first roller 7-07 and the second roller 7-09. The outer end of the fourth shaft pin 7-13 is fixedly sleeved with the second snap ring 7-06.

[0030] The four first vertical plates 7-01 have intervals, and the bent plates 7-10 are fixedly welded in the intervals.

[0031] The reinforcing plate structure 7 is provided with a mounting groove on one side of the first connecting plate 6-01, and the second connecting plate 7-04 is fixedly welded in the mounting groove.

[0032] The connecting bridge structure 8 comprises a forward vertical plate 8-01, reverse vertical plates 8-02 provided on both sides of the forward vertical plate 8-01, threaded holes provided in the forward vertical plate 8-01 and the two reverse vertical plates 8-02, a plurality of threaded holes connected through first screws 8-03, a third roller 8-04 mounted at one end of the two reverse vertical plates 8-02 through second screws 8-05 and bolts 8-06, the second shaft pin 7-08 rotatably connected with one end of the third roller 8-04 of the connecting bridge structure 8, and the other end of the connecting bridge structure 8 rotatably connected with the lifting machine shaft pin 2.

[0033] Working principle: The first roller 7-07 and the second roller 7-09 provided on the fourth shaft pin 7-13 first contact the ground at the initial stage of the scissor lifting machine rising and the final stage of the scissor lifting machine descending, giving a certain supporting effect and making the initial stage of the rising and the final stage of the descending more stable. When rising, the upper end of the reinforcing plate structure 7 is pushed by the extension end of the oil cylinder system 5, at this time, the upper end of the reinforcing plate structure 7 is first subjected to an upward force, and then the reinforcing plate structure 7 is driven to stand up with the pushing action. When the reinforcing plate structure 7 rises to the highest position, the second connecting plate 7-04 of the reinforcing plate structure 7 contacts the first connecting plate 6-01 connected at the middle position of the upper end scissor arm 6, and restrains the lower end scissor arm 3 to slide to the right through the connecting bridge structure 8. With the pushing action of the lifting machine oil cylinder system 5, the top plate 1 rises, the second connecting plate 7-04 part forms a fulcrum, and the upper end and the lower end of the second connecting plate 7-04 form a lever structure. The lower end of the reinforcing plate structure 7 restrains the lifting machine shaft pin 2, and at the same time drives the lower end scissor arm 3 to move to the right. The third roller 8-04 is arranged at the tail end position of the connecting bridge structure 8, so that the connecting bridge structure 8 is more flexible in transmitting the force of the reinforcing plate structure 7. More importantly, the connecting bridge structure 8 is added in this component, which is connected with the first shaft pin 2 on one side, connected with the upper end scissor arm 6 through the first shaft pin 2, and connected with the reinforcing plate structure 7 on the other side. The third shaft pin 7-02 at the upper end of the reinforcing plate structure 7 is connected with the hydraulic oil cylinder 5. At this time, the connecting bridge structure 8 indirectly restrains the scissor lifting machine platform 1 and the hydraulic oil cylinder 5. If there is an obstacle below the top plate 1 when the scissor lifting machine is descending, the top plate 1 stops descending, then the hydraulic oil cylinder 5 on this side stops working under the restraint of the connecting bridge structure 8, and the hydraulic oil cylinder on the other side also stops working at the same time. At this time, the top plates on both sides of the scissor lifting machine will hover at approximately the same horizontal position, ensuring the safety of the vehicle above the scissor lifting machine and preventing the vehicle from rolling over due to the large difference in the horizontal position of the top plates on both sides of the scissor lifting machine.

[0034] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0035] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A scissor lift with a rollable lever connecting member, comprising a top plate (1), an upper end scissor arm (6), a lift shaft pin (2), a lower end scissor arm (3), a cylinder system (5) and a bottom support (4) connected in sequence, characterized in that: It also includes a reinforcing plate structure (7) and a connecting bridge structure (8), the top end of the reinforcing plate structure (7) is rotatably connected to the telescopic end of the oil cylinder system (5), the bottom end of the reinforcing plate structure (7) is rotatably connected to the lifting machine shaft pin (2) through the connecting bridge structure (8), the middle of the upper end shear arm (6) is provided with a first connecting plate (6-01), the reinforcing plate structure (7) is arranged below the first connecting plate (6-01), the reinforcing plate structure (7) is slidably connected between the upper end shear arm (6), the telescopic end of the oil cylinder system (5) can drive the reinforcing plate structure (7) to stand up and contact the first connecting plate (6-01).

2. A scissors lift having a rollable lever connection member as claimed in claim 1, characterized in that: The reinforcing plate structure (7) includes a first vertical plate (7-01), three shaft holes are sequentially arranged in the first vertical plate (7-01) along the length direction, four first vertical plates (7-01) are arranged, the shaft holes of the four first vertical plates (7-01) are concentrically and parallelly arranged, a first shaft pin (7-11) is fixedly inserted into the shaft hole at the middle part of the four first vertical plates (7-01), shaft pin heads (7-12) are arranged at the two ends of the first shaft pin (7-11), the shaft pin heads (7-12) are provided with a check ring (7-05) outside the first vertical plate (7-01), a sliding groove (6-02) is arranged on the upper end shear arm (6), the shaft pin heads (7-12) are slidably connected in the sliding groove (6-02) respectively.

3. A scissors lift having a rollable lever connection member as claimed in claim 2, characterized in that: A second shaft pin (7-08) is fixedly inserted into the shaft hole at the lower end of the middle two first vertical plates (7-01), and the second shaft pin (7-08) is rotatably connected to one end of the connecting bridge structure (8).

4. A scissors lift having a rollable lever connection member as claimed in claim 3, characterized in that: A third shaft pin (7-02) is inserted into the shaft hole at the upper end of the four first vertical plates (7-01), the two ends of the third shaft pin (7-02) are located outside the reinforcing plate structure (7) and are respectively sleeved with a first clamping spring (7-03), The middle part of the third shaft pin (7-02) is rotatably connected to the telescopic end of the oil cylinder system (5).

5. A scissors lift having a rollable lever connection member as claimed in claim 4, characterised in that: Fourth shaft pins (7-13) are connected at the lower end of the first vertical plate (7-01) respectively, first rollers (7-07) and second rollers (7-09) are rotatably sleeved around the fourth shaft pins (7-13) respectively, and a second clamping spring (7-06) is fixedly sleeved at one end of the fourth shaft pin (7-13) located outside.

6. A scissors lift having a rollable lever connection member as claimed in claim 5, characterised in that: There are intervals between the four first vertical plates (7-01), and a bent plate (7-10) is fixedly welded in the intervals on both sides.

7. A scissors lift having a rollable lever connection member as claimed in claim 6, characterised in that: The reinforcing plate structure (7) is provided with a mounting groove on one side of the first connecting plate (6-01), and a second connecting plate (7-04) is fixedly welded in the mounting groove.

8. A scissors lift having a rollable lever connection member as claimed in claim 7, characterized in that: The connecting bridge structure (8) comprises a positive vertical plate (8-01), both sides of the positive vertical plate (8-01) are provided with reverse vertical plates (8-02), thread holes are formed in the positive vertical plate (8-01) and the two reverse vertical plates (8-02), a plurality of thread holes are connected through first screws (8-03), one end of the two reverse vertical plates (8-02) is provided with a third roller (8-04) through a second screw (8-05) and a bolt (8-06), one end of the third roller (8-04) is rotatably connected with the connecting bridge structure (8) and the second shaft pin (7-08), and the other end of the connecting bridge structure (8) is rotatably connected with the lifting machine shaft pin (2).

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