Vibration reduction mechanism of lifting platform

Abstract

The utility model relates to a lifting platform damping mechanism which comprises a damping pad, an assembly plate, a first sliding block part, a second sliding block part and a push rod, and the assembly plate is fixed on a base. The lower end face of the assembling plate is provided with first profile grooves which are opposite left and right and a second profile groove located between the first profile grooves. A shaped hole and a light pillar through hole which are opposite front and back are formed in the middle of the assembling plate, the first sliding block part is matched with the shaped hole, and one end of the first sliding block part extends into the second shaped groove and is matched with the light pillar through hole through an arranged stud body. The second groove and the first groove form a channel structure matched with the second sliding block part. The two ends of the push rod are matched with the two sliding block parts in a pivoted mode respectively so that the second sliding block part can be pushed and pulled to slide. A clamping groove structure is formed on the anti-vibration pad, and protruding edge structures matched with the clamping groove structure are formed on the inner wall of the first profiled groove and the second sliding block part. The damping pad is arranged in the first groove, and the lower end face protrudes outwards relative to the lower end face of the assembling plate. According to the utility model, the problems of inconvenient replacement operation and low efficiency of the anti-vibration pad are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting platforms, in particular to a vibration reduction mechanism for a lifting platform. Background Art

[0002] In villas and duplexes, lift platforms are often installed to facilitate access to and from the stairwells. To mitigate the impact and vibration caused by the lift platform's descent to the ground, a vibration-damping pad is fixed to the lower end of the lift platform's base. Because these pads are often made of materials like rubber and polyester, and are frequently impacted during long-term operation, they are susceptible to aging, failure, and hardening. Therefore, the pads on the lift platform's base must be regularly replaced.

[0003] The vibration damping pads on the existing lifting platform base are mostly fixed by gluing or pressing with a bundle plate. When replacing the vibration damping pad, it is necessary to remove the vibration damping pad from the lower end surface of the base. For the vibration damping pad fixed by gluing, in order to ensure that it is firmly bonded to the base, the strong glue used is likely to cause the vibration damping pad to be not torn cleanly when it is removed, and the presence of residual vibration damping pads on the base is likely to cause the vibration damping pad pasted later to be not firmly fixed. The vibration damping pad fixed by pressing with a pressure plate requires the removal and installation of more bolts or screws when it is removed from the base, which is inconvenient to operate and has low work efficiency. Utility Model Content

[0004] The utility model provides a lifting platform vibration reduction mechanism, which can overcome the problems of inconvenient operation and low efficiency in replacing vibration reduction pads, while also ensuring that the replaced vibration reduction pads are firmly fixed to the base.

[0005] The technical solution adopted by the utility model to solve the technical problem is: a lifting platform vibration reduction mechanism, including four vibration reduction pads fixed on a base, two assembly plates, two first sliding blocks, four second sliding blocks and four push rods.

[0006] Two mounting plates are fixed to the lower end surface of the base, facing each other front and back. The two first sliders correspond to the two mounting plates, and each mounting plate is equipped with two second sliders and two push rods. On the lower end surfaces of the mounting plates, first grooves for accommodating vibration damping pads are formed at the left and right ends, respectively. A second groove is formed between the two first grooves.

[0007] A molded hole corresponding to the first slider part is formed at the middle of the inner end surface of the assembly plate. One end of the first slider part can extend into the second molded groove after passing through the molded hole, so that the first slider part can slide in the front and rear directions relative to the assembly plate.

[0008] A light column through hole is formed at the middle of the outer end surface of the assembly plate, which is opposite to the molded hole in front and back; a stud body is formed at one end of the first slider portion extending into the second molded groove, and a nut is provided after the stud body extends forward and passes through the light column through hole; a spring is mounted on the stud body and the two ends of the spring are respectively in contact with the end surface of the first slider portion and the outer end surface of the second molded groove.

[0009] A channel structure corresponding to the second slider portion is formed between the second groove and the two first grooves on both sides of the groove, so that the second slider portion passes through the channel structure and one end extends into the first groove.

[0010] Two push rods are arranged opposite each other, with one end pivotally mated to the second slider portion on the same side, and the other end pivotally mated to the end of the first slider portion that extends into the second groove. When the nut mounted on the stud body is tightened, pulling the first slider portion forward and backward, the push rods push and pull the corresponding second slider portion to slide horizontally relative to the assembly plate.

[0011] A retaining groove structure is formed on at least the left and right side surfaces of the vibration-damping pad. Correspondingly, a ridge structure is formed on the left or right inner wall of the first profile, as well as on the end surface of the second slider portion that extends into the first profile. When the second slider portion moves leftward and rightward relative to the mounting plate into the first profile, the retaining groove structures on either side of the vibration-damping pad can engage with the ridge structures on the first profile and the ridge structures on the second slider portion, respectively, thereby securing the vibration-damping pad within the first profile. The lower end surface of the vibration-damping pad protrudes outward relative to the lower end surface of the mounting plate.

[0012] Optionally, a plurality of guide rods extending in a front-to-rear direction are formed on an end surface of the first slider portion that extends into the second groove. A plurality of through holes are formed on the assembly plate around the periphery of the light beam through hole. The guide rods correspond one-to-one with the through holes and can remain inserted into the through holes.

[0013] Optionally, the other end of the first sliding block is located outside the mold hole, and an edge plate extending in the left-right direction is formed on the end surface of the other end. An elastic pad is fixed on the inner side surface of the edge plate.

[0014] Optionally, the second slider portion includes a block body and an end plate fixed to the block body. The end plate extends into the first groove, and the ridge structure on the second slider portion is formed on the end surface of the end plate. The thickness of the end plate is greater than the thickness of the block body.

[0015] A cavity is formed on the end surface of the block body facing the second groove, and one end of the push rod matching with the second sliding block portion extends into the cavity and is pivotally matched with the block body.

[0016] Optionally, strip holes are formed on both the upper side wall and the lower side wall of the cavity. The two ends of the pivot arranged at the end of the push rod can extend into the two strip holes on the cavity accordingly.

[0017] A U-shaped insert is provided in the mold cavity, and the web of the insert is an arched plate. Holes are formed on both wings of the insert for the pivot to pass upward or downward. The outer protruding surface of the arched plate is in tangential contact with the inner ground surface of the mold cavity.

[0018] Optionally, two elastic sleeves are sleeved on the pivot, and the two elastic sleeves are respectively corresponding between the pivot and the two wing plates of the insert.

[0019] The beneficial effects of the utility model are as follows: the utility model can overcome the problems of inconvenient operation and low efficiency of vibration damping pad replacement, reduce the labor intensity of operators, improve the safety of operation, and at the same time ensure that the replaced vibration damping pad is firmly fixed to the base. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of the present utility model.

[0021] Figure 2 Schematic diagram of the top structure of the second slider portion.

[0022] Figure 3 It is a schematic diagram of the cross-sectional structure of the pivotal matching between the push rod and the second slider portion.

[0023] In the figure: 10 base; 20 vibration damping pad; 30 assembly plate, 31 type groove 1, 32 type groove 2, 33 type hole, 331 groove, 34 through hole; 40 first slider part, 41 stud body, 42 spring, 43 guide rod, 44 edge plate, 45 elastic pad, 46 convex rail; 50 second slider part, 51 block body, 511 cavity, 512 strip hole, 52 end plate, 521 strip groove; 60 push rod, 61 pivot, 62 insert, 621 arch plate, 63 elastic sleeve; 70 cover plate. DETAILED DESCRIPTION

[0024] The structures, proportions, sizes, etc. illustrated in the drawings of the specification are only used to match the contents disclosed in the specification for the understanding and reading of those familiar with this technology. They are not used to limit the conditions for the implementation of the utility model and therefore have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed in the utility model without affecting the efficacy and purpose of the utility model. At the same time, terms such as "upper", "lower", "front", "back", and "middle" quoted in this specification are only for the convenience of description and are not used to limit the scope of the implementation of the utility model. Changes or adjustments in their relative relationships should also be considered as the scope of the implementation of the utility model without substantially changing the technical content.

[0025] like Figures 1 to 3 The illustrated lifting platform vibration reduction mechanism includes four vibration reduction pads 20 fixed on the base 10 of the lifting platform, two long strip-shaped assembly plates 30, two first slider parts 40, four second slider parts 50, four push rods 60 and four cover plates 70.

[0026] Two assembly plates 30 are fixed to the lower end surface of the base 10 in a front-to-back relationship, extending in length in the left-right direction and in width in the front-to-back direction. The ends of the assembly plates 30 are capable of extending to the corners of the lower end surface of the base 10. The two first sliders 40 correspond one-to-one with the two assembly plates 30. Each assembly plate 30 is also equipped with two second sliders 50, two push rods 60, and two cover plates 70.

[0027] A first groove 31 for accommodating the vibration damping pad 20 is formed at the left and right ends of the assembly plate 30 , and a second groove 32 is formed between the two opposite first grooves 31 .

[0028] A shaped hole 33 is formed in the middle of the inner end surface of the assembly plate 30, corresponding to the first slider portion 40. One end of the first slider portion 33 extends through the shaped hole 33 and into the second shaped groove 32, allowing the first slider portion 33 to slide forward and backward relative to the assembly plate 30. In the illustrated embodiment, grooves 331 are formed on the left and right walls of the shaped hole 33, respectively. Correspondingly, raised rails 46 are formed on the left and right end surfaces of the first slider portion 40. When the raised rails 46 mate with the grooves 331, they constrain the first slider portion 40 to slide linearly in the forward and backward direction.

[0029] A light beam through hole is formed in the middle of the outer end surface of the assembly plate 30, facing the molded hole 33 in front and back. A stud 41 is formed at the end of the first slider portion 40 that extends into the second molded groove 32. After the stud 41 extends forward and passes through the light beam through hole, a nut is attached. A spring 42 is mounted on the stud 41, with its ends contacting the end surface of the first slider portion 40 and the outer end surface of the second molded groove 32, respectively.

[0030] A channel structure corresponding to the second slider portion 50 is formed between the second groove 32 and the two first grooves 31 on both sides thereof, so that the second slider portion 50 passes through the channel structure and the end portion extends into the first groove 31. Figure 1 In the embodiment shown, the groove structure formed between the second groove 32 and the first groove 31 is an open straight groove. Therefore, it is necessary to configure the cover plate 70 on the assembly plate 30 to seal the second slider portion 50 in the straight groove to prevent the second slider portion 50 from falling downward.

[0031] In other embodiments, the groove structure formed between the second groove 32 and the first groove 31 can also be a sliding cavity / slideway, so that the second sliding block 50 is inserted into the sliding cavity and one end extends into the first groove 31. In this case, the cover plate 70 may not be provided.

[0032] The two push rods 60 are arranged opposite to each other on the left and right sides, and one end of the two push rods 60 is pivotally matched with the second slider portion 50 on the same side, and the other end is pivotally matched with one end of the first slider portion 40 extending into the second groove 32.

[0033] By screwing the nut disposed on the stud body 41, the stud body 41 can pull the first slider portion 40 to move in the front-rear direction. During this period, the push rod 60 can push and pull the corresponding second slider portion 50 to slide relative to the assembly plate 30 in the left-right direction, so that the second slider portion 50 toward the end of the groove 31 can switchably extend into the groove 31 and move out of the groove 31.

[0034] A retaining groove structure is formed on at least the left and right sides of the vibration-damping pad 20. Correspondingly, a ridge structure is formed on the left or right inner wall of the first groove 31, as well as on the end surface of the second slider portion 50 that extends into the first groove 31. When the second slider portion 50 moves leftward and rightward relative to the assembly plate 30 into the first groove 31, the retaining groove structures on both sides of the vibration-damping pad 20 can engage with the ridge structures on the first groove 31 and the ridge structures on the second slider portion 50, respectively, thereby securing the vibration-damping pad 20 within the first groove 31.

[0035] When placing the vibration damping pad 20 into the groove 1 31 , first, the slot structure on one side of the vibration damping pad 20 is engaged with the ridge structure on the inner wall of the groove 1 31 . After the vibration damping pad 20 is completely squared in the groove 1 31 , the second slider 50 is driven into the groove 1 31 . The ridge structure on the second slider 50 is engaged with the slot structure on the vibration damping pad 20 , thereby simultaneously securing the two vibration damping pads 20 on the left and right sides to the assembly plate 30 . The lower end surface of the vibration damping pad 20 protrudes outward relative to the lower end surface of the assembly plate 30 . To achieve vibration reduction, the lower end surface of the vibration damping pad 20 should protrude outward relative to the lower end surface of the assembly plate 30 and the lower end surface of components mounted on the lower end surface of the assembly plate 30 (such as the cover plate 70 ). A sinking groove is preferably provided at the position where the cover plate 70 is set, and the cover plate 70 is sunken into the sinking groove, so that the lower end surface of the cover plate 70 is concave relative to the lower end surface of the assembly plate 30 without interfering with the function of the vibration damping pad 20.

[0036] During use, the present invention only requires adjusting the axial position of the nut on the stud body 41 relative to the stud body 41 to drive the first slider portion 40 to slide in the front-to-back direction, thereby driving the push rod 60 to move, and applying a push-pull force on the second slider portion 50 to drive the second slider portion 50 to slide in the left-to-right direction, thereby achieving the installation and removal process of the vibration damping pad 20. Therefore, the present invention has the advantages of simple and convenient operation and high assembly and disassembly efficiency. In addition, a ridge structure corresponding to the slot structure on the vibration damping pad 20 is provided on the inner wall of the groove 1 31 and on one side end face of the second slider portion. Therefore, when the second slider portion 50 pushes the vibration damping pad 20 to the left or right, the vibration damping pad 20 can be firmly squeezed into the groove 1 31, maintaining a fixed state firmly combined with the assembly plate 30.

[0037] A plurality of guide rods 43 extending in the front-to-rear direction are formed on one end surface of the first slider portion 40 that extends into the second groove 32. A plurality of through holes 34 are formed on the assembly plate 30, peripherally surrounding the light beam through hole. The guide rods 43 correspond one-to-one with the through holes 34 and can remain inserted into the through holes 34.

[0038] To prevent the first slider portion 40 from falling out of the molded hole 33, the other end of the first slider portion 40 is positioned outside the molded hole 33, and a flange plate 44 extending in the left-right direction is formed on the end surface of the other end. An elastic pad 45 is fixed to the inner side of the flange plate 44. When the nut is tightened to drive the first slider portion 40 into the molded groove 1 31, the flange plate 44 presses against the inner end surface of the assembly plate 30. The elastic pad 45 provides a buffer distance, ensuring that the first slider portion 40 remains firmly pressed against the assembly plate 30.

[0039] like Figures 1 to 3 As shown, the second slider portion 50 includes a block body 51 and an end plate 52 fixed to the block body 51. The end plate 52 extends into the groove 1 31, and the ridge structure on the second slider portion 50 is formed on the end surface of the end plate 52. As shown in the figure, a plurality of strip-shaped recessed grooves 521 are distributed on the end surface of the end plate 52, so that a long strip-shaped recessed groove 521 is formed between adjacent strip-shaped recessed grooves 521.

[0040] The thickness of the end plate 52 (relative to the vertical Figure 1 、 Figure 2 The dimension in the drawing direction of the drawings shown in the figure) is greater than the thickness of the block body 51. Separately providing the block body 51 and the end plate 52 helps to appropriately reduce the thickness of the assembly plate 30 while ensuring that the opposing surfaces of the second slider portion 50 and the vibration damping pad 20 have a larger contact area.

[0041] A cavity 511 is formed on the end surface of the block body 51 facing the second groove 32, and the end of the push rod 60 that matches the second slider portion 50 extends into the cavity 511, and establishes a hinged matching relationship with the block body 51 through the pivot 61.

[0042] The upper and lower sidewalls of the mold cavity 511 are each formed with a strip-shaped hole 512. The strip-shaped hole 512 on the upper sidewall should be a strip-shaped through hole; the strip-shaped hole 512 on the lower sidewall can be a strip-shaped through hole or a strip-shaped countersunk hole. The two ends of the pivot 61 disposed at the end of the push rod 60 can extend into the two strip-shaped holes 512 in the mold cavity 511, respectively.

[0043] A U-shaped insert 62 is positioned within the cavity 511, with the web of the insert 62 being an arched plate 621. Both wings of the insert 62 are formed with holes for the pivot 61 to pass upward or downward. The outward protrusion of the arched plate 621 is in tangential contact with the inner surface of the cavity 511.

[0044] By providing the strip hole 512 and the insert 62, the end of the push rod 60 pivotally matched with the second slider portion 50 can have a certain amount of movement space / distance in the left and right directions, which can effectively prevent the push rod 60 from getting stuck during rotational movement, and helps to ensure that the push rod and slider transmission structure formed by the push rod 60 and the two slider portions operates reliably and stably.

[0045] Two elastic sleeves 63 are mounted on the pivot 61, and the two elastic sleeves 63 are respectively located between the pivot 61 and the two wing plates of the insert 62. The elastic sleeves 63 can effectively prevent the pivot 61 from shaking between the two wing plates of the insert 62.

[0046] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. The present invention is susceptible to numerous improvements without departing from the overall concept. Those skilled in the art will appreciate the potential for modification or alteration of the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations accomplished by those skilled in the art without departing from the spirit and technical principles disclosed herein shall be encompassed by the claims of the present invention.

Claims

1. A lifting platform vibration reduction mechanism, comprising four vibration reduction pads fixed to a base; characterized in that: The base also includes two assembly plates, two first slider portions, four second slider portions, and four push rods; the two assembly plates are fixed to the lower end surface of the base in a front-to-rear manner; the two first slider portions are matched with the two assembly plates in a one-to-one correspondence, and each assembly plate is correspondingly provided with two second slider portions and two push rods; A first profile groove is formed oppositely at the left and right ends of the assembly plate, and a second profile groove is formed between the two first profile grooves; a profile hole is formed at the middle of the inner end surface of the assembly plate, one end of the first slider portion passes through the profile hole and extends into the second profile groove, so that the first slider portion can slide in the front-to-back direction relative to the assembly plate; a through hole for the light column is formed at the middle of the outer end surface of the assembly plate; a stud body is formed at the end of the first slider portion extending into the second profile groove, and a nut is provided on the portion of the stud body extending through the light column through hole; a spring is mounted on a section of the stud body located in the second profile groove; a channel structure is formed between the second profile groove and the first profile groove, and the second slider portion passes through the channel structure and extends into the first profile groove; The two push rods are arranged opposite to each other on the left and right sides, and one end of the two push rods is respectively pivotally matched with the second slider portion on the same side, and the other end is pivotally matched with the end of the first slider portion extending into the second groove; when the stud body pulls the first slider portion to move, the push rod can push and pull the second slider portion matched therewith to slide in the left and right directions; A card groove structure is formed at least on the left and right side surfaces of the vibration-damping pad, and correspondingly, a ridge structure is formed on the left inner wall or the right inner wall of the profile groove one, and on the end surface of the second slider portion extending into the profile groove one; the vibration-damping pad is placed in the profile groove one; when the push rod pushes the second slider portion to move into the profile groove one, the card groove structures on both sides of the vibration-damping pad can be respectively plugged and connected with the ridge structure on the profile groove one and the ridge structure on the second slider portion; the lower end surface of the vibration-damping pad protrudes outward relative to the lower end surface of the assembly plate.

2. The vibration reduction mechanism for a lifting platform according to claim 1, characterized in that: A plurality of guide rods extending in the front-to-back direction are formed on the end surface of one end of the first slider portion extending into the second groove; a plurality of through holes are formed on the assembly plate and at the periphery of the light column through hole; the guide rods are matched with the through holes one by one and the guide rods can remain in a state of being inserted into the through holes.

3. A lifting platform vibration reduction mechanism according to claim 1 or 2, characterized in that: The other end of the first sliding block is located outside the mold hole, and an edge plate extending in the left-right direction is formed on the end surface of the other end; an elastic pad is fixed on the inner side surface of the edge plate.

4. The vibration reduction mechanism for a lifting platform according to claim 1, characterized in that: The second slider portion includes a block body and an end plate fixed to the block body; the end plate extends into the first groove, and the ridge structure on the second slider portion is formed on the end surface of the end plate; the thickness of the end plate is greater than the thickness of the block body; A cavity is formed on the end surface of the block body facing the second groove, and one end of the push rod matching with the second sliding block portion extends into the cavity and is pivotally matched with the block body.

5. The vibration reduction mechanism for a lifting platform according to claim 4, characterized in that: Strip holes are formed on both the upper and lower side walls of the cavity; the two ends of the pivot at the end of the push rod can be correspondingly extended into the two strip holes on the cavity; A U-shaped insert is provided in the cavity, and the web of the insert is an arched plate; holes for the pivot to pass upward or downward are formed on both wing plates of the insert; the outer protrusion of the arched plate is in tangential contact with the inner ground of the cavity.

6. The vibration reduction mechanism for a lifting platform according to claim 5, characterized in that: Two elastic sleeves are sleeved on the pivot, and the two elastic sleeves are respectively corresponding between the pivot and the two wing plates of the insert.

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