A double scissor lift

Abstract

The utility model relates to a double shear type elevator, including chassis, operation platform and detachably installed between the chassis and operation platform's double shear fork mechanism, and the double shear fork mechanism includes two groups of shear fork subassembly and power component, and each group of shear fork subassembly includes base, top seat, shear fork arm, and the base detachably installs at the both ends of the top of chassis, and the top seat detachably installs at the both ends of the bottom of operation platform, and the opposite face outer end of base and top seat is fixedly connected with fixed base, and the other end is slidably connected with sliding seat, and the shear fork arm includes a plurality of groups of cross rotationally connected shear fork rod, and the top end of the shear fork rod located at the top and the bottom end of the shear fork rod located at the bottom are rotatably connected with the corresponding fixed base and sliding seat outside, and the upper and lower two groups of shear fork rods are driven to realize up-down telescopic through power component, and the two groups of shear fork subassembly are equipped with telescopic reinforcing mechanism. The utility model discloses the double shear fork mechanism interval adjustable, and greatly improved the versatility and applicability of equipment.

Description

Technical Field

[0001] This utility model relates to the field of lifting equipment, and in particular to a double scissor lift. Background Technology

[0002] Traditional double scissor lifts have some shortcomings in practical use, limiting their performance improvement and application scope. For example, the scissor arm spacing of traditional double scissor lifts is usually fixed, which means the equipment can only adapt to work platforms of a specific size. When a different sized work platform is needed, a new lift must be installed, resulting in high costs. In addition, the fixed spacing design is prone to load shifting when carrying unevenly distributed goods, causing the work platform to sway or tip over, affecting the stability and safety of the equipment. Summary of the Invention

[0003] The present invention aims to address the shortcomings of the prior art by providing a double scissor lift.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a double scissor lift, including a chassis, a work platform, and a double scissor mechanism detachably installed between the chassis and the work platform. The double scissor mechanism includes two sets of scissor assemblies and a power assembly. Each set of scissor assemblies includes a base, a top seat, and scissor arms. The base is detachably installed at both ends of the top of the chassis, and the top seat is detachably installed at both ends of the bottom of the work platform. Fixed seats are fixedly connected to the outer ends of the opposite surfaces of the base and the top seat, and sliding seats are slidably connected to the other ends. The scissor arms include several sets of scissor rods that are rotatably connected in a cross manner. The top end of the set of scissor rods at the top and the bottom end of the set of scissor rods at the bottom are rotatably connected to the outer sides of the corresponding fixed seats and sliding seats, respectively. The upper and lower adjacent sets of scissor rods are driven by the power assembly to achieve vertical extension and retraction. A telescopic reinforcement mechanism is provided between the two sets of scissor assemblies.

[0005] Specifically, the base and top seat have slide rails at both ends on opposite sides, and the sliding seat slides on the slide rails.

[0006] Specifically, angle steel is provided on the front and rear sides of the base and the top seat. The angle steel on the base is fixed to the chassis with bolts, and the angle steel on the top seat is fixed to the worktable with bolts.

[0007] Specifically, the power assembly includes a limit seat, a movable seat, a lead screw, a guide rod, and a motor. The intersection ends of two adjacent sets of scissor rods are rotatably connected to the outer sides of the corresponding limit seat and movable seat, respectively. The lead screw is rotatably connected to the middle of the inner side of the limit seat. The guide rods are fixed to the front and rear ends of the inner side of the limit seat, respectively. The lead screw and guide rod pass through the movable seat, and the lead screw is threadedly connected to the movable seat. The two lead screws have different thread directions. The motor is installed on the outer side of one limit seat to drive the adjacent lead screw to rotate. The two lead screws have spline grooves at their opposite ends, and a spline shaft is slidably inserted into the spline grooves. The two guide rods on the left and right sides have guide holes at their opposite ends, and a first telescopic rod is slidably inserted into the guide holes.

[0008] Specifically, the reinforcement mechanism includes a reinforcement rod and a second telescopic rod. Several reinforcement rods are fixed to the inside of the fixed seat, and the reinforcement rods pass through the sliding seat and are slidably connected to the sliding seat. The two reinforcement rods on the left and right sides are provided with insertion holes at their opposite ends, and the second telescopic rod is slidably inserted into the insertion holes.

[0009] Specifically, the tops of the two top seats are provided with several sliding grooves, and sliding rods are slidably installed in the sliding grooves, with the tops of the sliding rods flush with the tops of the top seats.

[0010] The beneficial effects of this utility model are as follows: The adjustable spacing of the double scissor lift mechanism allows the lift to adapt to work platforms of different sizes without replacing the entire scissor arm structure, greatly improving the versatility and applicability of the equipment, especially suitable for scenarios requiring frequent changes of work platforms or carrying goods of different sizes. By setting a reinforcing mechanism to connect the two sets of scissor lift components together, additional lateral support can be provided during the lifting process, enhancing the support stability of the double scissor lift mechanism, improving the synchronization and accuracy of the lifting process, and ensuring the smooth operation of the work platform. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the double scissor mechanism of this utility model after the spacing is adjusted.

[0013] Figure 3 This is a schematic diagram of the power component structure of this utility model;

[0014] Figure 4 This is a schematic diagram of the connection between the slide rod and the top seat of this utility model;

[0015] In the diagram: 1-Chassis; 2-Workbench; 3-Double scissor mechanism; 301-Base; 302-Top seat; 303-Scissor arm; 304-Fixed seat; 305-Sliding seat; 306-Slide rail; 307-Angle steel; 308-Limit seat; 309-Moving seat; 310-Screw screw; 311-Guide rod; 312-Motor; 313-Splined shaft; 314-First telescopic rod; 315-Reinforcing rod; 316-Second telescopic rod; 317-Slide groove; 318-Slide rod;

[0016] The following will describe in detail the embodiments of this utility model with reference to the accompanying drawings. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0018] like Figures 1-4 As shown, a double scissor lift includes a chassis 1, a work platform 2, and a double scissor mechanism 3 detachably installed between the chassis 1 and the work platform 2. The double scissor mechanism 3 includes two sets of scissor assemblies and a power assembly. Each set of scissor assemblies includes a base 301, a top seat 302, and a scissor arm 303. The base 301 is detachably installed at both ends of the top of the chassis 1, and the top seat 302 is detachably installed at both ends of the bottom of the work platform 2. A fixed seat 304 is fixedly connected to the outer ends of the opposite surfaces of the base 301 and the top seat 302, and a sliding seat 305 is slidably connected to the other end. The scissor arm 303 is enclosed in… The device includes several sets of scissor bars that are rotatably connected. The top of the set of scissor bars at the top and the bottom of the set of scissor bars at the bottom are rotatably connected to the outer sides of the corresponding fixed seat 304 and sliding seat 305, respectively. The front and rear ends of the opposite side of the base 301 and the top seat 302 are provided with slide rails 306. The sliding seat 305 is slidably mounted on the slide rails 306. Angle steel 307 is provided on the front and rear sides of the base 301 and the top seat 302. The angle steel 307 on the base 301 is fixed to the chassis 1 by bolts, and the angle steel 307 on the top seat 302 is fixed to the worktable 2 by bolts.

[0019] The vertical extension and retraction of two adjacent sets of scissor arms are achieved by a power assembly. The power assembly includes a limit seat 308, a movable seat 309, a lead screw 310, a guide rod 311, and a motor 312. The intersection of the two adjacent sets of scissor arms is rotatably connected to the outer side of the corresponding limit seat 308 and movable seat 309, respectively. The lead screw 310 is rotatably connected to the middle of the inner side of the limit seat 308. The guide rods 311 are fixed to the front and rear ends of the inner side of the limit seat 308, respectively. The lead screw 310 and the guide rods 311 pass through the movable seat 309, and the lead screw 310 is threadedly connected to the movable seat 309. The two lead screws 310 have different thread directions. The motor 312 is installed on the outer side of one limit seat 308 to drive the adjacent lead screw 310 to rotate. The opposite ends of the two lead screws 310 are provided with spline grooves, and a spline shaft 313 is slidably inserted in the spline grooves. The opposite ends of the two left and right guide rods 311 are provided with guide holes, and a first telescopic rod 314 is slidably inserted in the guide holes.

[0020] A telescopic reinforcement mechanism is provided between the two sets of scissor lift assemblies. The reinforcement mechanism includes a reinforcement rod 315 and a second telescopic rod 316. Several reinforcement rods 315 are fixed to the inside of the fixed seat 304, and the reinforcement rods 315 pass through the sliding seat 305 and are slidably connected to the sliding seat 305. The two reinforcement rods 315 on the left and right sides are provided with insertion holes at their opposite ends. The second telescopic rod 316 is slidably inserted into the insertion holes. Several sliding grooves 317 are provided on the top of the two top seats 302 respectively. Sliding rods 318 are slidably arranged in the sliding grooves 317. The top of the sliding rods 318 is flush with the top of the top seat 302.

[0021] The adjustable spacing of the double scissor lift mechanism 3 can optimize the support position of the scissor arms 303 according to the actual load conditions, ensuring uniform load distribution, reducing the risk of swaying and overturning, and the reinforcement mechanism can enhance the structural rigidity of the double scissor lift mechanism 3, reduce deformation, and extend the service life of the equipment.

[0022] When this utility model is in operation, the spacing of the double scissor lift mechanism can be adjusted according to the size of the work platform 2 to facilitate personnel maintenance or cargo handling. The adjustable spacing of the double scissor lift mechanism 3 allows the lift to adapt to work platforms of different sizes without replacing the entire scissor arm 303 structure, greatly improving the equipment's versatility and applicability, especially suitable for scenarios requiring frequent work platform changes or carrying goods of different sizes. By setting a reinforcement mechanism to connect the two sets of scissor lift components together, additional lateral support can be provided during the lifting process, enhancing the support stability of the double scissor lift mechanism, improving the synchronization and accuracy of the lifting process, and ensuring the smooth operation of the work platform.

[0023] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct application to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A double scissor lift, comprising a chassis (1), a work platform (2), and a double scissor mechanism (3) detachably mounted between the chassis (1) and the work platform (2), characterized in that, The double scissor mechanism (3) includes two sets of scissor assemblies and a power assembly. Each set of scissor assemblies includes a base (301), a top seat (302), and a scissor arm (303). The base (301) is detachably installed at both ends of the top of the chassis (1), and the top seat (302) is detachably installed at both ends of the bottom of the workbench (2). The outer ends of the opposite surfaces of the base (301) and the top seat (302) are fixedly connected to a fixed seat (304), and the other end is slidably connected to a sliding seat (305). The scissor arm (303) includes several sets of scissor rods that are rotatably connected in a cross manner. The top end of the set of scissor rods at the top and the bottom end of the set of scissor rods at the bottom are rotatably connected to the outer sides of the corresponding fixed seat (304) and sliding seat (305), respectively. The upper and lower adjacent sets of scissor rods are driven by the power assembly to achieve vertical extension and retraction. A telescopic reinforcement mechanism is provided between the two sets of scissor assemblies.

2. The double scissor lift according to claim 1, characterized in that, The base (301) and the top seat (302) are provided with slide rails (306) at both ends on the opposite side of the base (301) and the top seat (302), and the sliding seat (305) is slidably mounted on the slide rails (306).

3. A double scissor lift according to claim 1, characterized in that, Angle steel (307) is provided on the front and rear sides of the base (301) and the top seat (302). The angle steel (307) on the base (301) is fixed to the chassis (1) by bolts, and the angle steel (307) on the top seat (302) is fixed to the worktable (2) by bolts.

4. A double scissor lift according to claim 1, characterized in that, The power assembly includes a limit seat (308), a movable seat (309), a lead screw (310), a guide rod (311), and a motor (312). The intersection ends of two adjacent sets of scissor arms are rotatably connected to the outer sides of the corresponding limit seat (308) and movable seat (309), respectively. The lead screw (310) is rotatably connected to the middle of the inner side of the limit seat (308). The guide rod (311) is fixed to the front and rear ends of the inner side of the limit seat (308), respectively. The lead screw (310) and the guide rod (311) pass through the movable seat (309). The movable seat (309) is connected to the lead screw (310) by threads. The two lead screws (310) have different thread directions. The motor (312) is installed on the outside of a limit seat (308) to drive the adjacent lead screw (310) to rotate. The two lead screws (310) are provided with spline grooves at opposite ends. A spline shaft (313) is slidably inserted in the spline groove. The two guide rods (311) on the left and right are provided with guide holes at opposite ends. A first telescopic rod (314) is slidably inserted in the guide holes.

5. A double scissor lift according to claim 1, characterized in that, The reinforcement mechanism includes a reinforcement rod (315) and a second telescopic rod (316). Several reinforcement rods (315) are fixed to the inside of the fixed seat (304), and the reinforcement rods (315) pass through the sliding seat (305) and are slidably connected to the sliding seat (305). The two reinforcement rods (315) on the left and right sides are provided with insertion holes at their opposite ends, and the second telescopic rod (316) is slidably inserted into the insertion holes.

6. A double scissor lift according to claim 1, characterized in that, The tops of the two top seats (302) are provided with several sliding grooves (317), and sliding rods (318) are slidably provided in the sliding grooves (317). The top of the sliding rods (318) is flush with the top of the top seats (302).

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