Scissor fork type elevator

Abstract

The invention belongs to the technical field of conveying equipment and discloses a scissor lift which comprises a driving assembly, a lifting device, pressure detection assemblies, a lower connecting piece, a lifting belt, a drag chain and an upper connecting piece, the multiple pressure detection assemblies are installed at the bottom of the lower connecting piece, and the bottom of the lifting device is in transmission connection in the lower connecting piece. The top of the lifting device is in transmission connection in the upper connecting piece, the upper end of the upper connecting piece is connected with the connecting frame, the driving assembly is installed above the upper connecting piece, the other end of the driving assembly is connected with the hanging belts, the hanging belts are arranged in pairs, the bottoms of the hanging belts are installed below the lifting device, and the drag chains are arranged in pairs and installed between the lower connecting piece and the upper connecting piece. The drag chain is arranged outside the lifting device. The problems that in the prior art, due to the fact that hydraulic transmission is adopted by a shear fork type elevator, the maintenance cost is high, and the resource cost is high are solved. The application range and practicability are improved, and the use cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of conveying equipment, and in particular to a scissor-type lift. Background Art

[0002] Elevators have been widely used in construction, industry, logistics and other fields due to their simple structural principles, stable and reliable operating performance and high work efficiency.

[0003] However, the existing scissor lifts still have room for improvement in terms of improving efficiency, reducing energy consumption and adapting to different working conditions. Especially in automated production lines, higher requirements are placed on the space utilization, installation convenience and operation stability of the lifts. Most of the existing lifts use hydraulic devices for lifting, which consume a lot of hydraulic oil and are relatively expensive. They also require regular maintenance and have high labor costs.

[0004] Therefore, how to provide a scissor-type lift to solve the defects of the existing scissor-type lifts is a technical problem that needs to be urgently solved by those skilled in the art. Summary of the invention

[0005] To this end, the present invention provides a scissor-type lift to solve the problems of high maintenance cost and high resource cost caused by the use of hydraulic transmission in the scissor-type lift in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] The invention discloses a scissor lift, comprising:

[0008] A lower connecting piece, with a number of pressure detection components installed at the bottom;

[0009] A lifting device, the bottom of which is transmission-connected to the lower connecting member, the top of which is transmission-connected to the upper connecting member, and the upper end of the upper connecting member is connected to the connecting frame;

[0010] A driving assembly is installed above the upper connecting member, the other end of the driving assembly is connected to a sling, the slings are arranged in pairs, and the bottom of the sling is installed below the lifting device;

[0011] The drag chains are arranged in pairs and installed between the lower connecting member and the upper connecting member. The drag chains are arranged outside the lifting device.

[0012] In a possible implementation, the lower connecting member includes:

[0013] A bottom frame, with a plurality of pressure detection components mounted on the bottom surface, and a support frame mounted on the upper surface of the bottom frame;

[0014] The lower rails are arranged in pairs and installed on the upper end of the support frame, and the upper part of the lower rails is drivingly connected to the bottom of the lifting device;

[0015] An instrument is installed above the bottom frame, and the instrument is arranged on the left side of the support frame. A bottom drag chain groove is also installed above the bottom frame, and the bottom drag chain groove is arranged on the front and rear sides of the support frame.

[0016] In a possible implementation, the upper connecting member includes:

[0017] A top frame, with a plurality of suspension plates mounted on the upper surface, the top and bottom ends of the connecting frame are mounted in the suspension plates, and the track pad is mounted above the top frame;

[0018] A plurality of upper rails are installed above the rail pads, and the top end of the lifting device is drivingly connected to the upper rails;

[0019] The upper drag chain grooves are arranged in pairs and installed at the bottom of the top frame. A driver and a plurality of travel switches are also installed at the upper end of the top frame.

[0020] In a possible implementation, the lifting device includes:

[0021] A lower drive assembly, the bottom drive connection of which is in the lower connection member;

[0022] A scissor structure, the bottom of which is mounted above the lower drive assembly;

[0023] The upper driving assembly is transmission-connected to the upper connecting member, and the upper end of the scissor structure is installed at the bottom of the upper driving assembly.

[0024] In a possible implementation, the upper drive assembly includes:

[0025] A first gear is installed in the upper connecting member, a rack conductor strip is installed on the upper connecting member, the rack conductor strips are arranged in pairs, a first rack is transmission-connected in the rack conductor strip, and the first rack is meshingly connected with the first gear;

[0026] A rack pad is installed above the end of the first rack, a connection frame is connected to the surface of the other end of the rack pad, and a plurality of touch blocks are installed on the upper end of the connection frame;

[0027] Upper sliders, arranged in pairs, mounted on the bottom surface of the top plate of the connection frame;

[0028] The fixing buckles are arranged in pairs and installed at the bottom of the connection frame.

[0029] In a possible implementation, the lower driving component includes:

[0030] A second gear is installed in the lower connecting member, the front and rear sides of the second gear are meshed with second racks, and a guide block is arranged on the outer side of the second rack;

[0031] A connecting block is installed on the upper side of the end of the second rack, a connecting plate is installed above the connecting block, and a mounting block is installed above the connecting plate;

[0032] Lower sliding blocks, arranged in pairs, mounted on the bottom of the connecting plate;

[0033] A sling fixing block is installed on the lower connecting piece, and a sling pressing plate is installed above the sling fixing block.

[0034] In a possible implementation, the scissor structure includes:

[0035] A plurality of flip rods are connected by round rods, and the round rods are inserted in the middle of two of the flip rods;

[0036] The mounting rod is mounted between the two opposite side flip rods.

[0037] In a possible implementation, the driving component includes:

[0038] A mounting seat, mounted on the upper surface of the upper connecting member, and a plurality of bearing seat pads are also mounted on the upper surface of the upper connecting member;

[0039] A motor housing is mounted on the surface of the mounting seat, a driving motor is installed in the motor housing, and an output end of the driving motor is transmission-connected to a rotating rod;

[0040] The bearing seat is installed above the bearing seat pad. The rotating rod passes through several bearing seats in sequence. One end of the sling is wound around the rotating rod and is arranged between two bearing seats.

[0041] In a possible implementation, the pressure detection component includes:

[0042] A mounting plate, mounted on the bottom of the lower connecting piece, two pressure sensors are mounted on the bottom of the mounting plate, and a bakelite support is connected below the pressure sensors;

[0043] A pole plate bakelite is installed below the bakelite support, a floating pin is installed in the pole plate bakelite, and a flat washer is sleeved on the outer side of the upper end of the floating pin;

[0044] Copper busbar, installed at the bottom of the floating pin.

[0045] The present invention retracts the sling through a driving component, and during the process of the sling being retracted, the lifting device will gradually be retracted, and the transmission of the lifting device in the lower connecting piece and the upper connecting piece can assist the lifting device to complete the retraction, and during the retraction process of the lifting device, the lower connecting piece moves upward, and the lower connecting piece can be connected to a flat plate or a hanging basket to complete the lifting of the equipment, and the lower connecting piece is lowered by the weight of the equipment. When the lower connecting piece reaches a certain position, the pressure detection component contacts the ground to generate pressure, and feeds back to the driving component, the driving component rotates, tightens the sling, and prevents the lower connecting piece from continuing to move downward, effectively preventing the lower connecting piece from moving downward excessively and causing damage to the equipment. Moreover, the sling is different from a hydraulic device, and is easy to replace, which improves practicality while saving costs and has a wider range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0047] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0048] Figure 1 A three-dimensional diagram of the scissor lift provided by the present invention;

[0049] Figure 2 A three-dimensional diagram of the lower connecting member provided by the present invention;

[0050] Figure 3 A three-dimensional diagram of the upper connecting member provided by the present invention;

[0051] Figure 4 A three-dimensional diagram of the lifting device provided by the present invention;

[0052] Figure 5 A three-dimensional diagram of the upper drive assembly provided by the present invention;

[0053] Figure 6 A three-dimensional diagram of the lower drive assembly provided by the present invention;

[0054] Figure 7 A three-dimensional diagram of the scissor-type structure provided by the present invention;

[0055] Figure 8 A three-dimensional diagram of the drive assembly provided by the present invention;

[0056] Fig. 9 A three-dimensional diagram of the pressure detection assembly provided by the present invention;

[0057] In the figure: 1 driving assembly; 11 motor housing; 12 bearing seat pad; 13 bearing seat; 14 rotating rod; 15 mounting seat; 16 driving motor; 2 lifting device; 21 upper driving assembly; 211 first gear; 212 first rack; 213 touch block; 214 connecting frame; 215 rack pad; 216 fixing buckle; 217 upper slider; 218 rack conductor; 22 scissor structure; 221 mounting rod; 222 flip rod; 223 round rod; 23 lower driving assembly; 231 mounting block; 232 connecting plate; 233 lower slider; 234 second rack; 23 5 second gear; 236 sling fixing block; 237 sling pressure plate; 238 guide block; 239 connecting block; 3 pressure detection assembly; 31 bakelite support; 32 plate bakelite; 33 pressure sensor; 34 copper bar; 35 floating pin; 36 flat pad; 37 mounting plate; 4 lower connecting piece; 41 lower track; 42 bottom frame; 43 bottom drag chain slot; 44 instrument; 45 supporting frame; 5 sling; 6 drag chain; 7 upper connecting piece; 71 driver; 72 top frame; 73 suspension plate; 74 upper drag chain slot; 75 track pad; 76 upper track; 77 travel switch. DETAILED DESCRIPTION

[0058] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0059] Please refer to Figure 1-Figure 9 Now, a scissor lift disclosed in the present invention is described. The present invention consists of seven parts, such as Figure 1 , including a driving component 1, a lifting device 2, a pressure detection component 3, a lower connecting member 4, a sling 5, a drag chain 6 and an upper connecting member 7. A plurality of pressure detection components 3 are installed at the bottom of the lower connecting member 4. The bottom of the lifting device 2 is transmission-connected in the lower connecting member 4. The top of the lifting device 2 is transmission-connected in the upper connecting member 7. The upper end of the upper connecting member 7 is connected to the connecting frame. The driving component 1 is installed above the upper connecting member 7. The other end of the driving component 1 is connected to a sling 5. The slings 5 ​​are arranged in pairs. The bottom of the slings 5 ​​is installed below the lifting device 2. The drag chains 6 are arranged in pairs and installed between the lower connecting member 4 and the upper connecting member 7. The drag chains 6 are arranged on the outside of the lifting device 2.

[0060] When the present invention is in use, the lower connecting member 4 is connected to the connecting plate or the hanging basket, and then the upper end of the connecting frame is connected to the suspension plate 73, and then the equipment or a person is placed in the connecting plate or the hanging basket, and then the driving motor 16 is started, driving the rotating rod 14 to rotate, and the rotating rod 14 will wind up the sling 5 during the rotation process, and the sling 5 will pull the lower driving component 23 to move upward during the upward movement of the lower driving component 23, and the lower slider 233 will move along the lower track 41 during the movement of the lower slider 233, and the connecting plate 232 will be driven to move, and the movement of the connecting plate 232 will drive the second rack 234 to move, and drive the second gear 235 to rotate, and the gear and the rack The meshing of the gear and the rack will also limit the moving direction. The movement of the connecting frame 214 and the connecting plate 232 will pull the mounting rod 221 to move. The mounting rod 221 will drive the flip rod 222 to flip around the round rod 223 during the movement. During the rising process of the lower driving assembly 23, the two flip rods 222 will overlap each other, so that the distance between the lower connecting member 4 and the upper connecting member 7 is shortened. When the lower connecting member 4 drives the connecting plate or the hanging basket to move downward, the gravity of the connecting plate or the hanging basket drives the lower driving assembly 23 to move downward, and during the downward movement of the lower driving assembly 23, the sling 5 wrapped in the rotating rod 14 is pulled out, so that the lower driving assembly 23 moves downward. During the downward movement, the lower driving assembly 23 and the upper driving assembly 21 move in the lower connecting member 4 and the upper connecting member 7 respectively, and the flip rod 222 rotates around the round rod 223, and an X-shaped structure is formed between the flip rods 222, so that the distance between the lower connecting member 4 and the upper connecting member 7 increases. When the lower connecting member 4 is close to the ground, the copper bus 34 is connected to the ground. When the copper bus 34 touches the ground, the pressure of the ground on the copper bus 34 is converted into the power of the floating pin 35, so that the floating pin 35 slides in the pole plate bakelite 32, and the movable range of the floating pin 35 is restricted, so that the pressure of the ground on the copper bus 34 can be converted into the pressure of the floating pin 35 on the bakelite support 31, and the pressure is applied to the pressure sensor 33. At the same time, the lower connecting part 4 will apply pressure to the pressure sensor 33, so that the pressure sensor 33 generates pressure. When the pressure reaches a certain value, the pressure is fed back to the drive motor 16, and the drive motor 16 drives the rotating rod 14 to rotate, tightens the sling 5, and prevents the lower connecting part 4 from moving further downward.

[0061] In a specific embodiment, Figure 2The lower connecting member 4 includes a lower rail 41, a bottom frame 42, a bottom drag chain slot 43, a meter 44 and a support frame 45. A plurality of pressure detection components 3 are installed on the bottom surface of the bottom frame 42, and a support frame 45 is installed on the upper surface of the bottom frame 42. The lower rails 41 are arranged in pairs and installed on the upper end of the support frame 45. The bottom of the lifting device 2 is connected to the bottom of the lower rail 41. The meter 44 is installed above the bottom frame 42. The meter 44 is set on the left side of the support frame 45. The bottom drag chain slot 43 is also installed above the bottom frame 42. The bottom drag chain slot 43 is set on the front and rear sides of the support frame 45. The meter 44 is used to display the pressure signal, the lower rail 41 is used to move the lower drive assembly 23, and the bottom drag chain slot 43 is used to install the drag chain 6.

[0062] In a specific embodiment, Figure 3 The upper connecting member 7 includes a driver 71, a top frame 72, a suspension plate 73, an upper drag chain groove 74, a track pad 75, an upper track 76 and a travel switch 77. A plurality of suspension plates 73 are installed on the upper surface of the top frame 72. The bottom end of the top of the connecting frame is installed in the suspension plate 73. The track pad 75 is installed above the top frame 72. A plurality of upper tracks 76 are installed above the track pad 75. The top end of the lifting device 2 is connected to the upper track 76 by transmission. The upper drag chain groove 74 is arranged in pairs and installed at the bottom of the top frame 72. A driver 71 and a plurality of travel switches 77 are also installed at the upper end of the top frame 72. The upper track 76 is used for the movement of the upper drive assembly 21. The track pad 75 is used for installing the upper track 76. The driver 71 is used for controlling the drive motor 16. The travel switch 77 is a switch that can detect the position of an object and convert it into an electrical signal output.

[0063] In a specific embodiment, Figure 4 The lifting device 2 includes an upper driving assembly 21, a scissor structure 22 and a lower driving assembly 23. The bottom of the lower driving assembly 23 is connected to the lower connecting member 4 by transmission. The bottom of the scissor structure 22 is installed above the lower driving assembly 23. The upper driving assembly 21 is connected to the upper connecting member 7 by transmission. The upper end of the scissor structure 22 is installed at the bottom of the upper driving assembly 21. The scissor structure 22 is provided for stability during the lifting process, while the upper driving assembly 21 and the lower driving assembly 23 are for the scissor structure 22 to open and contract.

[0064] In a specific embodiment, Figure 5The upper driving assembly 21 includes a first gear 211, a first rack 212, a touch block 213, a connecting frame 214, a rack pad 215, a fixing buckle 216, an upper slider 217 and a rack wire strip 218. The first gear 211 is installed in the upper connecting member 7. The rack wire strip 218 is installed on the upper connecting member 7. The rack wire strips 218 are arranged in pairs. The first rack 212 is transmission-connected in the rack wire strip 218. The first rack 212 is meshed and connected with the first gear 211. The rack pad 215 is installed above the end of the first rack 212. The connecting frame 214 is connected to the other end surface of the rack pad 215. A plurality of touch blocks 213 are installed on the upper end of the connecting frame 214. The upper sliders 217 are arranged in pairs and installed on the bottom surface of the top plate of the connecting frame 214. The fixing buckles 216 are arranged in pairs and installed at the bottom of the connecting frame 214. The rotation of the first gear 211 will drive the translation of the first rack 212, so that the connecting frame 214 moves along the upper track 76. The setting of the touch block 213 is used to prevent collision. The engagement of the gear and the rack can effectively limit the moving direction. The setting of the fixing buckle 216 is used to install the mounting rod 221. The upper slider 217 will move along the upper track 76. The setting of the rack wire 218 can also prevent the first rack 212 from moving out of position.

[0065] In a specific embodiment, Figure 6 The lower driving assembly 23 includes a mounting block 231, a connecting plate 232, a lower slider 233, a second rack 234, a second gear 235, a sling fixing block 236, a sling pressing plate 237, a guide block 238 and a connecting block 239. The second gear 235 is installed in the lower connecting member 4. The second gear 235 is meshed and connected with the second rack 234 on both sides. A guide block 238 is arranged on the outer side of the second rack 234. The connecting block 239 is installed on the upper side of the end of the second rack 234. A connecting plate 232 is installed above the connecting block 239. A mounting block 231 is installed above the connecting plate 232. The lower sliders 233 are arranged in pairs and installed at the bottom of the connecting plate 232. The sling fixing block 236 is installed on the lower connecting member 4. A sling pressing plate 237 is installed above the sling fixing block 236. The driving method and effect of the second rack 234 and the second gear 235 are the same as those of the first gear 211 and the first rack 212. The lower slider 233 will move along the lower track 41. The guide block 238 is used to guide the second rack 234. The mounting block 231 is used to install the mounting rod 221. A restricted space is formed between the sling fixing block 236 and the sling pressure plate 237. One end of the sling 5 is installed in the restricted space, so that the sling 5 is connected to the lower driving assembly 23.

[0066] In a specific embodiment, Figure 7The scissor structure 22 includes a mounting rod 221, a flip rod 222 and a round rod 223. The flip rods 222 are connected by the round rod 223. The round rod 223 is inserted in the middle of two flip rods 222. The mounting rod 221 is installed between two opposite flip rods 222. The flip rod 222 will flip along the round rod 223. During the lifting process, the movement of the lower driving assembly 23 and the upper driving assembly 21 will cause the mounting rod 221 to move, and the mounting rod 221 will pull the flip rod 222 to flip.

[0067] In a specific embodiment, Figure 8 The driving assembly 1 includes a motor housing 11, a bearing seat pad 12, a bearing seat 13, a rotating rod 14, a mounting seat 15 and a driving motor 16. The mounting seat 15 is mounted on the upper surface of the upper connecting member 7. A plurality of bearing seat pads 12 are also mounted on the upper surface of the upper connecting member 7. The motor housing 11 is mounted on the surface of the mounting seat 15. A driving motor 16 is mounted in the motor housing 11. The output end of the driving motor 16 is connected to the rotating rod 14 in a transmission manner. The bearing seat 13 is mounted above the bearing seat pad 12. The rotating rod 14 passes through a plurality of bearing seats 13 in sequence. One end of the sling 5 is wound around the rotating rod 14 and is arranged between two bearing seats 13. The start of the driving motor 16 will drive the rotating rod 14 to rotate, and the rotation of the rotating rod 14 will wind up or release the sling 5. The setting of the bearing seat 13 is to limit the rotating rod 14 to only rotate, but not to move.

[0068] In a specific embodiment, Fig. 9 The pressure detection assembly 3 includes a bakelite support 31, a plate bakelite 32, a pressure sensor 33, a copper bar 34, a floating pin 35, a flat pad 36 and a mounting plate 37. The mounting plate 37 is mounted on the bottom of the lower connector 4. Two pressure sensors 33 are mounted on the bottom of the mounting plate 37. The bakelite support 31 is connected below the pressure sensor 33. The plate bakelite 32 is mounted below the bakelite support 31. A floating pin 35 is mounted in the plate bakelite 32. A flat pad 36 is sleeved on the outer side of the upper end of the floating pin 35. The copper bar 34 is mounted on the bottom of the floating pin 35. When the copper bar 34 contacts the floor, it moves upward and drives the floating pin 35 to move upward. The moving distance of the floating pin 35 is limited, so that the excess pressure can be transmitted to the plate bakelite 32, and then the pressure is transmitted to the pressure sensor 33 through the bakelite support 31 for pressure detection. The setting of the flat pad 36 can limit the moving distance of the floating pin 35.

[0069] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims

1. A scissor lift, characterized in that: include: A lower connecting piece (4) having a plurality of pressure detection components (3) installed at the bottom; A lifting device (2), the bottom of which is transmission-connected to the lower connecting member (4), the top of which is transmission-connected to the upper connecting member (7), and the upper end of which is connected to the connecting frame; A driving assembly (1) is installed above the upper connecting member (7); the other end of the driving assembly (1) is connected to a sling (5); the slings (5) are arranged in pairs, and the bottom of the slings (5) is installed below the lifting device (2); The drag chains (6) are arranged in pairs and installed between the lower connecting member (4) and the upper connecting member (7). The drag chains (6) are arranged outside the lifting device (2).

2. The scissor lift according to claim 1, characterized in that: The lower connecting member (4) comprises: A bottom frame (42), a plurality of pressure detection components (3) are installed on the bottom surface, and a support frame (45) is installed on the upper surface of the bottom frame (42); The lower rails (41) are arranged in pairs and installed on the upper end of the support frame (45), and the upper part of the lower rails (41) is drivingly connected to the bottom of the lifting device (2); An instrument (44) is installed above the bottom frame (42). The instrument (44) is arranged on the left side of the support frame (45). A bottom drag chain groove (43) is also installed above the bottom frame (42). The bottom drag chain groove (43) is arranged on the front and rear sides of the support frame (45).

3. The scissor lift according to claim 1, characterized in that: The upper connecting member (7) comprises: A top frame (72) is provided with a plurality of suspension plates (73) on its upper surface, the top and bottom ends of the connecting frame are installed in the suspension plates (73), and a track pad (75) is installed above the top frame (72); A plurality of upper rails (76) are installed above the rail pad (75), and the top end of the lifting device (2) is drivingly connected to the upper rails (76); The upper drag chain grooves (74) are arranged in pairs and installed at the bottom of the top frame (72). A driver (71) and a plurality of travel switches (77) are also installed at the upper end of the top frame (72).

4. The scissor lift according to claim 1, characterized in that: The lifting device (2) comprises: A lower drive assembly (23), the bottom of which is drivingly connected in the lower connecting member (4); A scissor structure (22), the bottom of which is installed above the lower drive assembly (23); An upper driving assembly (21) is drivingly connected to the upper connecting member (7), and the upper end of the scissor structure (22) is mounted on the bottom of the upper driving assembly (21).

5. The scissor lift according to claim 4, characterized in that: The upper drive assembly (21) comprises: A first gear (211) is installed in the upper connecting member (7), a rack conductor strip (218) is installed on the upper connecting member (7), the rack conductor strips (218) are arranged in pairs, a first rack (212) is transmission-connected in the rack conductor strips (218), and the first rack (212) is meshingly connected with the first gear (211); A rack pad (215) is installed above the end of the first rack (212); a connection frame (214) is connected to the surface of the other end of the rack pad (215); and a plurality of touch blocks (213) are installed on the upper end of the connection frame (214); Upper sliders (217), arranged in pairs, mounted on the bottom surface of the top plate of the connection frame (214); The fixing buckles (216) are arranged in pairs and installed at the bottom of the connection frame (214).

6. The scissor lift according to claim 4, characterized in that: The lower driving assembly (23) comprises: A second gear (235) is installed in the lower connecting member (4); the second gear (235) is meshedly connected with a second rack (234) at the front and rear sides; a guide block (238) is provided on the outer side of the second rack (234); A connecting block (239) is installed on the upper side of the end of the second rack (234), a connecting plate (232) is installed above the connecting block (239), and a mounting block (231) is installed above the connecting plate (232); Lower sliders (233), arranged in pairs and installed at the bottom of the connecting plate (232); A sling fixing block (236) is mounted on the lower connecting member (4), and a sling pressing plate (237) is mounted above the sling fixing block (236).

7. The scissor lift according to claim 4, characterized in that: The scissor structure (22) comprises: A plurality of flip rods (222) are connected by round rods (223), wherein the round rods (223) are inserted in the middle of two of the flip rods (222); The mounting rod (221) is mounted between the two opposite side flip rods (222).

8. The scissor lift according to claim 1, characterized in that: The driving assembly (1) comprises: A mounting seat (15) is mounted on the upper surface of the upper connecting member (7), and a plurality of bearing seat pads (12) are also mounted on the upper surface of the upper connecting member (7); A motor housing (11) is mounted on the surface of the mounting seat (15); a driving motor (16) is mounted in the motor housing (11); and an output end of the driving motor (16) is drivingly connected to a rotating rod (14); The bearing seat (13) is installed above the bearing seat pad (12), the rotating rod (14) passes through several of the bearing seats (13) in sequence, and one end of the sling (5) is wrapped around the rotating rod (14) and arranged between two of the bearing seats (13).

9. The scissor lift according to claim 1, characterized in that: The pressure detection component (3) comprises: A mounting plate (37) mounted on the bottom of the lower connecting member (4), two pressure sensors (33) being mounted on the bottom of the mounting plate (37), and a bakelite support (31) being connected below the pressure sensors (33); A pole plate bakelite (32) is installed below the bakelite support (31), a floating pin (35) is installed in the pole plate bakelite (32), and a flat washer (36) is sleeved on the outer side of the upper end of the floating pin (35); The copper bar (34) is installed at the bottom of the floating pin (35).

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