Double-guide-rail scissor-type large-stroke lifting structure

Abstract

The utility model relates to the technical field of lifting structures, in particular to a double-guide-rail scissor type large-stroke lifting structure. The double-guide-rail shear-fork type large-stroke lifting structure comprises a fixed bottom plate, double-slide-rail assemblies are arranged on the two sides of the fixed bottom plate, a shear-fork mechanism is arranged between the double-slide-rail assemblies and fixed to the fixed bottom plate, and an element mounting plate used for mounting all monitoring devices is arranged at the upper end of the shear-fork mechanism. And the equipment can be controlled to carry out large-distance lifting along a set direction. A unique double-guide-rail structure is adopted as a whole for fixing, so that transmission is more stable. Through the unique design of the acting force of the electric push cylinder, normal lifting under the load of 100 kg can be achieved, the starting angle and length of the shear fork rod are simulated through a three-dimensional simulator, and the lifting height which is 6-8 times of the contraction height can be achieved. The large-stroke and large-load scissor fork mechanism with the guiding function is suitable for being applied to various industrial devices and automatic devices.

Description

Technical Field

[0001] This utility model relates to a lifting structure, and more particularly to a double-rail scissor lift structure with a large stroke. Background Technology

[0002] In daily work, we often see lifting platforms, which are scissor lift mechanisms. These mechanisms are simple and practical. However, when applied to industrial products, mere lifting functionality is far from sufficient. Force analysis, stability calculations, stroke control, and guide design of the scissor lift components are also required. Traditional scissor lift mechanisms are mostly used in industries such as textiles, food, and packaging, where the functional requirements are relatively low; simply achieving shearing and separation is enough. Utility Model Content

[0003] The present invention aims to solve the above-mentioned defects and provide a dual-rail scissor lift structure with a large stroke.

[0004] In order to overcome the defects in the background technology, the technical solution adopted by this utility model to solve its technical problem is: this double guide rail scissor type large stroke lifting structure includes a fixed base plate, double slide rail assemblies are provided on both sides of the fixed base plate, a scissor mechanism is provided between the double slide rail assemblies and fixed on the fixed base plate, and a component mounting plate for installing all monitoring equipment is provided at the upper end of the scissor mechanism.

[0005] According to another embodiment of the present invention, the dual slide rail assembly further includes a base at the bottom of the dual slide rail assembly. A slot is provided on the upper left side of the base, and a lower guide rail fixing plate is fixedly connected to the slot. A vertically upward lower guide rail is installed on the front of the lower guide rail fixing plate. A lower guide rail slider is provided on the front of the lower guide rail, which can slide along the direction of the lower guide rail. A lower guide rail limiting block for preventing the lower guide rail slider from continuing to move upward is fixedly connected to the top of the lower guide rail. The lower back of the upper guide rail is fixedly connected to the front of the lower guide rail slider. The lower bottom of the upper guide rail is provided with a lower upper guide rail fixing member, and the top is provided with an upper upper guide rail fixing member. An upper guide rail slider is provided on the front of the upper guide rail, and the upper guide rail slider can slide up and down along the upper guide rail. A curved plate for connecting the lifting device is installed on the front of the upper guide rail slider.

[0006] According to another embodiment of the present invention, the monitoring device further includes a tubular support assembly fixed on a component mounting plate, and a monitoring instrument is provided on the tubular support assembly.

[0007] According to another embodiment of the present invention, the main body of the tubular support assembly is a welded pipe formed by welding multiple irregularly shaped bent pipes. The inside of the welded pipe is a wire harness channel. The bottom welding flange of the welded pipe is fixed to the component mounting plate. The top of the welded pipe is provided with an instrument mounting flange. The top of the instrument mounting flange is fixed with a monitoring instrument. A baffle for installing backup equipment is installed on the top of the pipe on the side of the welded pipe.

[0008] According to another embodiment of the present invention, the scissor mechanism further includes a base plate mounted above a fixed base plate, a U-shaped lifting platform base fixedly connected to the base plate, a long slot on the right side of the lifting platform base, a fixed connecting rod fixed to the left side of the lifting platform base at the lowest end, and a sliding connecting rod connected to the right side of the lifting platform base at the lowest end. One fixed connecting rod and one sliding connecting rod intersect and are connected in the middle by a pivot pin, forming a set of strokes. Each set is connected by a pivot pin. Angle steel is welded onto the fixed connecting rod. The mechanism also includes an electric push cylinder connected to the welded angle steel at the top and fixed to the base plate at the bottom. A lower guide wheel is provided at the bottom of the lower sliding connecting rod, and the lower guide wheel is located in the long slot on the right side of the lifting platform base. The mechanism also includes a lifting platform top plate with a U-shaped cross section, the same as the lifting platform base, and a long slot on the right side, located at the top of the scissor mechanism. An upper guide wheel is provided on the uppermost fixed connecting rod, and the upper guide wheel is located in the long slot on the right side of the lifting platform top plate. The uppermost sliding connecting rod is fixedly connected to the left end of the lifting platform top plate.

[0009] According to another embodiment of the present invention, the elongated slot of the elevator base is further provided with a limit switch one and a limit switch two at both ends.

[0010] According to another embodiment of the present invention, the scissor mechanism is further provided with an accordion cover for shielding.

[0011] The beneficial effects of this utility model are as follows: This double-rail scissor lift structure with a large stroke is composed of an electric drive mechanism formed by an electric push cylinder, a transmission mechanism formed by a scissor mechanism, a guide mechanism formed by a double slide rail assembly, and a control part. It can control the equipment to lift a large distance along a designated direction. The whole structure adopts a unique double-rail structure for fixation, making the transmission smoother. Through the unique electric push cylinder force design, it can achieve normal lifting with a load of 100kg. The starting angle and length of the scissor arm have been simulated by a three-dimensional simulator, and it can achieve a lifting height of 6-8 times the retracted height. This large-stroke, high-load, and guided scissor mechanism is suitable for application in various industrial equipment and automation equipment. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of this utility model after removing the bellows cover;

[0015] Figure 3 yes Figure 1 Schematic diagram of the structure of the double slide rail assembly;

[0016] Figure 4 yes Figure 1 Schematic diagram of the scissor lift mechanism;

[0017] Figure 5 yes Figure 1 Schematic diagram of the structure of the tube-type support assembly;

[0018] The components include: 1. Double slide rail assembly; 2. Fixed base plate; 3. Bellows cover; 4. Tubular bracket assembly; 5. Scissor mechanism; 6. Component mounting plate; 7. Monitoring instrument; 1.1. Base; 1.2. Lower guide rail fixing plate; 1.3. Lower guide rail; 1.4. Lower guide rail slider; 1.5. Lower guide rail limit block; 1.6. Upper guide rail lower fixing component; 1.7. Upper guide rail slider; 1.8. Bend plate; 1.9. Upper guide rail; 1.10. 4.1. Fixed components on the upper guide rail; 4.2. Pipe welding; 4.3. Instrument mounting flange; 5.4. Baffle; 5.5. Base plate; 5.6. Electric push cylinder; 5.7. Lift base; 5.8. Lower guide wheel; 5.9. Sliding connecting rod; 5.10. Fixed connecting rod; 5.11. Welded angle steel; 5.12. Shaft pin; 5.13. Upper guide wheel; 5.14. Lift top plate; 5.15. Limit switch one; 5.16. Limit switch two. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art without creative effort in accordance with the embodiments of the basic utility model are within the protection scope of this utility model.

[0020] Figure 1 , 2 As shown, this is a long-stroke scissor lift mechanism, composed of an electric drive mechanism formed by an electric push cylinder, a transmission mechanism formed by the scissor mechanism, a guide mechanism formed by a double slide rail assembly, and a control unit. It can achieve stable lifting with a long stroke and provides guidance throughout the lifting process. The mechanism retracts to a very low height, occupying minimal equipment space.

[0021] Figure 3As shown, there are two sets of dual slide rail assemblies 1, installed on the left and right sides of the device. The bottom of the dual slide rail assembly 1 is a fixed base plate 2, which is installed on the base platform of the entire device. The base 1.1 of the dual slide rail assembly 1 is located at the very bottom of the assembly and is directly installed to the fixed base plate 2 with five screws. The lower guide rail fixing plate 1.2 is located above the left side of the base 1.1 in the slot and is fixed to the base 1.1. A vertically upward lower guide rail 1.3 is installed on the front of the lower guide rail fixing plate 1.2. A lower guide rail slider 1.4 is located on the front of the lower guide rail 1.3, which can slide along the direction of the lower guide rail 1.3. A lower guide rail limiting block 1.5 is located at the top of the lower guide rail 1.3 and is locked to the guide rail, preventing the lower guide rail slider 1.4 from moving upwards. The lower back of the upper guide rail 1.9 is fixed to the lower guide rail slider 1.4. The bottom of the upper guide rail 1.9 has a lower upper guide rail fixing part 1.6, and the top has an upper upper guide rail fixing part 1.10. An upper guide rail slider 1.7 is mounted on the front of the upper guide rail 1.9. The upper guide rail slider 1.7 can slide up and down along the upper guide rail 1.9. The lower upper guide rail fixing part 1.6 and the upper upper guide rail fixing part 1.10 are used to limit its movement stroke. A bent plate 1.8 is mounted on the front of the upper guide rail slider 1.7. The bent plate 1.8 is used to connect the device to be lifted. The lifting process is divided into two stages. The first stage is the lower guide rail stroke. After the lower guide rail stroke ends, it is blocked by the lower guide rail limit block from continuing to move. At this time, the second stage begins the movement of the upper guide rail. When the upper guide rail reaches the top, it stops, and the maximum height is reached.

[0022] Figure 1 As shown, the bellows cover 3 is used to shield the scissor lift mechanism 5, serving to prevent dust and water damage. The top of the scissor lift mechanism 5 is a component mounting plate 6, which is used to mount all monitoring equipment. A tubular support assembly 4 is located in the middle of the component mounting plate 6, and the monitoring instrument 7 is mounted on top of the tubular support assembly 4.

[0023] Figure 5 As shown, the main body of the tubular support assembly 4 is a welded pipe 4.1, which is made of multiple irregularly shaped bends welded together. The inside of the pipe serves as a wiring harness channel, and the bottom flange of the pipe is welded to and fixed to the component mounting plate. The monitoring instrument 7 is fixed to the top of the instrument mounting flange 4.2. A baffle 4.3 is installed vertically on the top of the welded pipe in front of it, and the baffle 4.3 is used for the installation of backup equipment.

[0024] Figure 4As shown, the scissor lift mechanism 5 is the core transmission part of this device. The base plate 5.1 is installed above the fixed base plate 2. The lifting platform base 5.3 is fixed to the base plate 5.1. The lifting platform base 5.3 is the foundation of the scissor lift mechanism. The cross-section of the lifting platform base 5.3 is U-shaped, and there is a long slot on the right side. The electric push cylinder 5.2 is installed obliquely inside the scissor lift mechanism 5. The fixed connecting rod 5.6 is the main load-bearing component and is welded to the welded angle steel 5.7. The bottom of the electric push cylinder 5.2 is fixed to the base 5.3, and the top is connected to the welded angle steel 5.7. The lower guide wheel 5.4 is installed at the bottom of the sliding connecting rod 5.5 and can slide left and right along the long slot of the base plate. The sliding connecting rod 5.5 and the fixed connecting rod 5.6 are connected in the middle by the shaft pin 5.8. The lifting platform top plate 5.10 is located at the top of the scissor lift mechanism. Its cross-section is U-shaped, the same as the base plate, and there is a long slot on the right side. The upper guide wheel 5.9 can also slide in the long slot of the top plate. Limit switch 1 5.11 and limit switch 2 5.12 are provided at both ends of the long slot of the elevator base 5.3.

[0025] A fixed link 5.6 and a sliding link 5.5 intersect and are connected in the middle by a pivot pin 5.8 to form a group. Each group is connected by a pivot pin. Multiple groups can be set according to the actual height requirements. The bottom group is used as a deformable moving rod by the sliding link 5.5, and the top group is used as a deformable moving rod by the fixed link 5.6.

[0026] The transmission principle of the scissor lift mechanism is as follows: During lifting, the electric cylinder push rod extends, pushing the welded angle steel, which in turn moves the sliding and fixed connecting rods, gradually reducing the angle between them. At this time, the lower and upper guide wheels also gradually move to the left, and the lift platform also moves upward. When the lower guide wheel touches limit switch two, the mechanism stops moving, and the mechanism has reached its maximum height. During lowering, the electric cylinder push rod retracts, pulling the welded angle steel, gradually increasing the angle between the fixed and sliding connecting rods. The lower and upper guide wheels also gradually move to the right. When the lower guide wheel touches limit switch one, the mechanism stops moving, and the mechanism has descended to its minimum height.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A double-rail scissor lift structure with a large stroke, comprising a fixed base plate (2), characterized in that: The fixed base plate (2) has double slide rail assemblies (1) on both sides. A scissor mechanism (5) is provided between the double slide rail assemblies (1) and fixed on the fixed base plate (2). The upper end of the scissor mechanism (5) is provided with a component mounting plate (6) for installing all monitoring equipment. The double slide rail assembly (1) includes a base (1.1) at the bottom of the double slide rail assembly. A slot is provided on the upper left side of the base (1.1). A lower guide rail fixing plate (1.2) is fixedly connected to the slot. A vertically upward lower guide rail (1.3) is installed on the front of the lower guide rail fixing plate (1.2). A lower guide rail slider (1.4) is provided on the front of the lower guide rail (1.3). The slider (1.4) can... Slide along the direction of the lower guide rail (1.3). The top of the lower guide rail (1.3) is fixedly connected to the lower guide rail limit block (1.5) to prevent the lower guide rail slider (1.4) from continuing to move upward. The front of the lower guide rail slider (1.4) is fixedly connected to the lower back of the upper guide rail (1.9). The bottom of the upper guide rail (1.9) is provided with the lower fixing part (1.6) and the top is provided with the upper fixing part (1.10). The front of the upper guide rail (1.9) is provided with the upper guide rail slider (1.7). The upper guide rail slider (1.7) can slide up and down along the upper guide rail (1.9). The front of the upper guide rail slider (1.7) is installed with a curved plate (1.8) for connecting the lifting device.

2. The dual-rail scissor lift structure with a large stroke as described in claim 1, characterized in that: The monitoring equipment includes a tubular support assembly (4) fixed on a component mounting plate (6), and a monitoring instrument (7) is provided on the tubular support assembly (4).

3. The dual-rail scissor lift structure with a large stroke as described in claim 2, characterized in that: The main body of the tubular support assembly (4) is a welded pipe (4.1) made of multiple irregularly shaped bent pipes. The inside of the welded pipe (4.1) is a wire harness channel. The bottom welded flange of the welded pipe (4.1) is fixed to the component mounting plate (6). The top of the welded pipe (4.1) is provided with an instrument mounting flange (4.2). The top of the instrument mounting flange (4.2) is fixed with a monitoring instrument (7). A baffle (4.3) for installing backup equipment is installed on the top of the pipe on the side of the welded pipe (4.1).

4. The dual-rail scissor lift structure with a large stroke as described in claim 1, characterized in that: The scissor mechanism (5) includes a base plate (5.1) installed above a fixed base plate (2). A U-shaped lifting platform base (5.3) is fixedly connected to the base plate (5.1). The right side of the lifting platform base (5.3) is provided with a long slot. It also includes a fixed connecting rod (5.6) fixed to the left side of the lifting platform base (5.3) at the lowest end, and a sliding connecting rod (5.5) connected to the right side of the lifting platform base (5.3) at the lowest end. A fixed connecting rod (5.6) and a sliding connecting rod (5.5) intersect and are connected in the middle by a pivot pin (5.8) to form a set of strokes. Each set is connected by a pivot pin. Angle steel (5.7) is welded to the fixed connecting rod (5.6). It also includes a top and a welded angle steel. The electric push cylinder (52) is connected to the steel (5.7) and fixed to the bottom plate (5.1). The bottom of the sliding connecting rod (5.5) at the bottom is provided with a lower guide wheel (5.4). The lower guide wheel (5.4) is located in the long slot on the right side of the elevator base (5.3). The elevator top plate (5.10) with a U-shaped cross section and a long slot on the right side is provided on the top of the scissor mechanism (5). The upper guide wheel (5.9) is provided on the fixed connecting rod (5.6) at the top. The upper guide wheel (5.9) is located in the long slot on the right side of the elevator top plate (5.10). The sliding connecting rod (5.5) at the top is fixedly connected to the left end of the elevator top plate (5.10).

5. The dual-rail scissor lift structure with a large stroke as described in claim 4, characterized in that: The long slot of the elevator base (5.3) is equipped with limit switch one (5.11) and limit switch two (5.12) at both ends.

6. The dual-rail scissor lift structure with a large stroke as described in claim 1, characterized in that: The scissor mechanism (5) is fitted with a bellows cover (3) for shielding.

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