Cross bridging jacking mechanism

Abstract

The utility model discloses a diagonal bracing jacking mechanism which comprises a lower fixing seat and an upper fixing seat, a first shaft pin and a second shaft pin are fixedly installed at the right end of the lower fixing seat and the right end of the upper fixing seat in a penetrating mode respectively, and a first shear bracing is connected to the surface of the first shaft pin in a rotating mode. According to the utility model, the power-assisted plate is driven to rotate by taking the fixed shaft seat as a shaft and the sliding wheel is driven to roll in the inner cavity of the shear support I through the tension of the contraction air spring, so that the shear support I rotates by taking the shaft pin I as a shaft, and the shear support II rotates by taking the shaft pin II as a shaft through the shaft pin III, so that the upper fixed seat is lifted; the force of the first shear brace and the second shear brace which are crossed is reduced, the gas spring body supports and rises in a relay mode, under the action of force complementation, the lifting force of the cross bridging is increased, and the lifting force of the cross bridging is adjusted according to the pressure set by the contraction gas spring and the gas spring.

Description

Technical Field

[0001] The utility model belongs to the technical field of scissor-type lifting machines, in particular to a scissor-type lifting mechanism. Background Art

[0002] The scissors brace is an important component structure of the scissors-type jacking machine. The support of the scissors brace in the scissors-type jacking machine can ensure the stability of the jacking platform. The support of the scissors brace generally cooperates with the work of the jacking cylinder. In order to improve the supporting effect of the shear brace, we designed a scissors brace lifting mechanism. During the opening process of the shear brace, the supporting capacity of the shear brace is improved through the cooperation of two gas springs. Utility Model Content

[0003] The utility model aims to provide a scissor support lifting mechanism, which has the advantage of improving the supporting capacity of the shear support through the cooperation of two gas springs during the process of the shear support opening, so as to solve the above-mentioned background technical problems.

[0004] The technical solution of the utility model for solving the above technical problems is as follows: a scissors-strut lifting mechanism, which includes a lower fixed seat and an upper fixed seat: the right ends of the lower fixed seat and the upper fixed seat are respectively fixedly installed with an axle pin 1 and an axle pin 2, the surface of the axle pin 1 is rotatably connected to the shear strut 1, the surface of the axle pin 2 is rotatably connected to the shear strut 2, an axle pin 3 is penetrated at the middle axis of the front side of the shear strut 2, the shear strut 1 passes through the shear strut 2 and is rotatably connected to the surface of the axle pin 3, the end of the shear strut 2 away from the axle pin 2 is slidably connected to the inner cavity of the lower fixed seat, the end of the shear strut 1 away from the axle pin 1 is slidably connected to the inner cavity of the upper fixed seat, an upper support assembly is arranged between the upper fixed seat and the axle pin 3, the upper support assembly includes an axle pin 4 and a gas spring body, the Axis pin four is arranged through-and-through on one side of slide slot two near the upper fixed seat, and the gas spring body is rotatably connected to the surface of axis pin four, and the other end of the gas spring body extends to the inner cavity of shear support one and is rotatably connected to axis pin three, and a lower support assembly is arranged between the lower fixed seat and the shear support one, and the lower support assembly includes axis pin five, a contraction gas spring, a fixed shaft seat, a power-assisting plate, a sliding wheel and a limit plate, and the axle pin five is arranged through-and-through on one side of the lower fixed seat near the axle pin one, and the contraction gas spring is rotatably connected to the surface of axis pin five, and the fixed shaft seat is welded to the bottom of the inner cavity of the lower fixed seat, and the power-assisting plate is rotatably connected to the inner cavity of the fixed shaft seat through a rotating shaft, and one end of the contraction gas spring away from axis pin five is rotatably connected to the power-assisting plate through a rotating shaft, and one end of the power-assisting plate passes through the shear support one.

[0005] Preferably, a sliding pin 1 is penetrated through one end of the shear support 2 away from the axle pin 2, and a sliding groove 1 for sliding the sliding pin 1 is formed at the left end of the lower fixed seat.

[0006] Preferably, a sliding pin 2 is penetrated through one end of the shear support 1 away from the axle pin 1, and a sliding groove 2 for sliding the sliding pin 2 is formed at the left end of the upper fixed seat.

[0007] Preferably, the sliding wheel is movably mounted in the inner cavity of the power-assisting plate, and the sliding wheel is rollingly connected to the inner cavity of the shear support.

[0008] Preferably, the limit plate is welded to the inner cavity of the shear brace 1, and the limit plate abuts against one side of the sliding wheel.

[0009] 1. The beneficial effect of the utility model is as follows: the utility model drives the assisting plate to rotate with the fixed shaft seat as the axis through the tension of the contraction gas spring, drives the sliding wheel to roll in the inner cavity of the shear strut one, so that the shear strut one rotates with the shaft pin one as the axis, and then the shear strut two rotates with the shaft pin two as the axis through the shaft pin three, so that the upper fixed seat is raised. After the upper fixed seat is raised, the strength of the crossed shear struts one and two is reduced, and the gas spring body relays and supports the rise, so that the lifting force of the scissors strut is increased under the action of complementary forces. The lifting force of the scissors strut is adjusted according to the pressure set by the contraction gas spring and the gas spring, so that the purpose of improving the supporting capacity of the shear strut can be achieved through the cooperation of the two gas springs during the opening of the shear strut.

[0010] 2. In the utility model, by setting the limit plate, the assisting plate drives the sliding wheel to slide in the inner cavity of the shear support 1, and the limit plate limits the movement of the assisting plate and the sliding wheel, so that the shear support 1 is subjected to force and rotates around the axle pin 1. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] in:

[0012] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the utility model;

[0013] Figure 2 It is a front view schematic diagram of an embodiment of the utility model.

[0014] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0015] 1. Lower fixed seat, 2. Upper fixed seat, 3. Axis pin 1, 4. Shear support 1, 5. Axis pin 2, 6. Shear support 2, 7. Axis pin 3, 8. Slide slot 1, 9. Slide pin 1, 10. Slide slot 2, 11. Slide pin 2, 12. Axis pin 4, 13. Gas spring body, 14. Axis pin 5, 15. Contraction gas spring, 16. Fixed shaft seat, 17. Power plate, 18. Sliding wheel, 19. Limit plate. DETAILED DESCRIPTION

[0016] Hereinafter, an embodiment of the scissors support lifting mechanism of the present invention will be described with reference to the accompanying drawings.

[0017] Figure 1-2 The utility model shows a scissor support lifting mechanism of an embodiment of the utility model, which includes a lower fixed seat 1 and an upper fixed seat 2: the right ends of the lower fixed seat 1 and the upper fixed seat 2 are respectively fixedly installed with an axle pin 1 3 and an axle pin 2 5, the surface of the axle pin 1 3 is rotatably connected to the shear support 1 4, the surface of the axle pin 2 5 is rotatably connected to the shear support 2 6, the middle axis of the front side of the shear support 2 6 is penetrated by an axle pin 3 7, the shear support 1 4 passes through the shear support 2 6 and is rotatably connected to the surface of the axle pin 3 7, the end of the shear support 2 6 away from the axle pin 2 5 is slidably connected to the inner cavity of the lower fixed seat 1, and the end of the shear support 2 6 away from the axle pin 2 5 is penetrated by the axle pin 3 7 A sliding pin 9 is provided through it, a sliding groove 8 for sliding pin 9 is provided at the left end of the lower fixed seat 1, an end of the shear support 4 away from the shaft pin 3 is slidably connected to the inner cavity of the upper fixed seat 2, a sliding pin 2 11 is provided through the end of the shear support 4 away from the shaft pin 3, a sliding groove 2 10 for sliding pin 2 11 is provided at the left end of the upper fixed seat 2, an upper support assembly is provided between the upper fixed seat 2 and the shaft pin 3 7, the upper support assembly includes shaft pin 4 12 and a gas spring body 13, shaft pin 4 12 is provided through the upper fixed seat 2 close to the sliding groove 2 10 side, and the gas spring body 13 is rotatably connected to the shaft pin 4 12 The other end of the gas spring body 13 extends to the inner cavity of the shear support 4 and is rotatably connected to the shaft pin three 7. A lower support assembly is arranged between the lower fixed seat 1 and the shear support 4. The lower support assembly includes a shaft pin five 14, a contraction gas spring 15, a fixed shaft seat 16, a power plate 17, a sliding wheel 18 and a limit plate 19. The shaft pin five 14 is arranged on the side of the lower fixed seat 1 close to the shaft pin 3. The contraction gas spring 15 is rotatably connected to the surface of the shaft pin five 14. The fixed shaft seat 16 is welded to the bottom of the inner cavity of the lower fixed seat 1. The power plate 17 is rotatably connected to the inner cavity of the fixed shaft seat 16 through a rotating shaft. One end of the compressed air spring 15 away from the axle pin 5 14 is rotatably connected to the assisting plate 17 through a rotating shaft. One end of the assisting plate 17 passes through the shear strut 14. The sliding wheel 18 is movably installed in the inner cavity of the assisting plate 17. The sliding wheel 18 is rollingly connected to the inner cavity of the shear strut 14. The limiting plate 19 is welded to the inner cavity of the shear strut 14. The limiting plate 19 is against one side of the sliding wheel 18. Through the setting of the limiting plate 19, the assisting plate 17 drives the sliding wheel 18 to slide in the inner cavity of the shear strut 14. The limiting plate 19 limits the movement of the assisting plate 17 and the sliding wheel 18, so that the shear strut 14 is subjected to force to rotate around the axle pin 3.

[0018] Working principle: When the utility model is used, the user pulls the shear strut 14 to rotate and tilt around the axle pin 13 through the assist plate 17 under the action of the pulling force of the contraction gas spring 15 and the lever force group. The shear strut 14 is connected to the shear strut 2 6 through the axle pin 3 7, which will cause the sliding pin 19 at the lower end of the shear strut 2 6 to slide in the inner cavity of the slide groove 18, and the upper end of the shear strut 14 will drive the sliding pin 2 11 to slide in the inner cavity of the slide groove 2 10, so that the upper fixed seat 2 can be raised. Since the force of the scissors strut is reduced after being raised, the gas spring relay supports the lifting, so that the lifting force of the scissors strut is increased under the action of complementary forces, and the lifting force of the scissors strut is adjusted according to the pressure set by the contraction gas spring and the gas spring.

[0019] To sum up: the scissors strut lifting mechanism drives the assisting plate 17 to rotate around the fixed shaft seat 16 through the pulling force of the contraction gas spring 15, and drives the sliding wheel 18 to roll in the inner cavity of the shear strut 4, so that the shear strut 4 rotates around the shaft pin 3, and then through the shaft pin 3 7, the shear strut 2 6 rotates around the shaft pin 25, so that the upper fixed seat 2 is raised. After the upper fixed seat 2 is raised, the strength of the crossed shear struts 1 4 and 2 6 is reduced, and the gas spring body 13 relays and supports the lifting, so that the lifting force of the scissors strut is increased under the effect of complementary forces. The lifting force of the scissors strut is adjusted according to the pressure set by the contraction gas spring and the gas spring, so that the purpose of improving the supporting capacity of the shear strut can be achieved through the cooperation of the two gas springs during the opening of the shear strut.

Claims

1. A scissors support lifting mechanism, characterized in that: The invention comprises a lower fixing seat (1) and an upper fixing seat (2): the right ends of the lower fixing seat (1) and the upper fixing seat (2) are respectively fixedly installed with an axle pin 1 (3) and an axle pin 2 (5) through-type, the surface of the axle pin 1 (3) is rotatably connected to a shear support 1 (4), the surface of the axle pin 2 (5) is rotatably connected to a shear support 2 (6), the middle axis of the front side of the shear support 2 (6) is penetrated by an axle pin 3 (7), the shear support 1 (4) passes through the shear support 2 (6) and is rotatably connected to the axle pin 3 (7). 7), the end of the shear support 2 (6) away from the axle pin 2 (5) is slidably connected to the inner cavity of the lower fixed seat (1), the end of the shear support 1 (4) away from the axle pin 1 (3) is slidably connected to the inner cavity of the upper fixed seat (2), an upper support assembly is arranged between the upper fixed seat (2) and the axle pin 3 (7), the upper support assembly includes axle pin 4 (12) and a gas spring body (13), the axle pin 4 (12) is arranged through the side of the slide groove 2 (10) close to the upper fixed seat (2), The gas spring body (13) is rotatably connected to the surface of the shaft pin four (12), and the other end of the gas spring body (13) extends to the inner cavity of the shear support one (4) and is rotatably connected to the shaft pin three (7). A lower support assembly is arranged between the lower fixed seat (1) and the shear support one (4), and the lower support assembly includes a shaft pin five (14), a contraction gas spring (15), a fixed shaft seat (16), a power plate (17), a sliding wheel (18) and a limit plate (19). The shaft pin five (14) is penetrated by the The contraction gas spring (15) is arranged on a side of the lower fixed seat (1) close to the shaft pin one (3), the contraction gas spring (15) is rotatably connected to the surface of the shaft pin five (14), the fixed shaft seat (16) is welded to the bottom of the inner cavity of the lower fixed seat (1), the assisting plate (17) is rotatably connected to the inner cavity of the fixed shaft seat (16) via a rotating shaft, one end of the contraction gas spring (15) away from the shaft pin five (14) is rotatably connected to the assisting plate (17) via a rotating shaft, and one end of the assisting plate (17) passes through the shear support one (4).

2. A scissors support lifting mechanism according to claim 1, characterized in that: A sliding pin (9) is provided through one end of the shear support (6) away from the shaft pin (5), and a sliding groove (8) for the sliding pin (9) to slide is provided at the left end of the lower fixed seat (1).

3. A scissors support lifting mechanism according to claim 2, characterized in that: A sliding pin 2 (11) is provided through one end of the shear support 1 (4) away from the shaft pin 1 (3), and a sliding groove 2 (10) for the sliding pin 2 (11) to slide is provided at the left end of the upper fixed seat (2).

4. A scissors support lifting mechanism according to claim 3, characterized in that: The sliding wheel (18) is movably mounted in the inner cavity of the power-assisting plate (17), and the sliding wheel (18) is rollingly connected to the inner cavity of the shear support (4).

5. A scissors support lifting mechanism according to claim 4, characterized in that: The limiting plate (19) is welded to the inner cavity of the shear support (4), and the limiting plate (19) is against one side of the sliding wheel (18).

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