CN110282573B - Four-column pulley lifting device with power bow for underground station - Google Patents
Four-column pulley lifting device with power bow for underground station Download PDFInfo
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- CN110282573B CN110282573B CN201910621487.8A CN201910621487A CN110282573B CN 110282573 B CN110282573 B CN 110282573B CN 201910621487 A CN201910621487 A CN 201910621487A CN 110282573 B CN110282573 B CN 110282573B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
- B65F9/00—Transferring of refuse between vehicles or containers with intermediate storage or pressing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/46—Combinations of several jacks with means for interrelating lifting or lowering movements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/02—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms suspended from ropes, cables, or chains or screws and movable along pillars
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Vehicle Step Arrangements And Article Storage (AREA)
Abstract
The invention discloses a four-column pulley lifting device with a power bow for a ground burying station, wherein: including installing left side base support, right side base support and the middle part power structure in the foundation ditch, left side base support includes left side horizontal support, left front column and left rear column, left front column lower extreme is fixed at left side horizontal support's front end, left rear column lower extreme is fixed at left side horizontal support's rear end, left front column, left horizontal pole and left rear column constitute an opening shape structure up, right side base support includes right front column, right side horizontal support and right rear column, right front column lower extreme is fixed at right side horizontal support's front end, right rear column lower extreme is fixed at right side horizontal support's rear end, left front column, left horizontal pole and left rear column constitute an opening shape structure up, the middle part power structure includes left power seat, well power seat, right power seat, the guide rail, the slider, power bow and power jar.
Description
Technical Field
The invention belongs to the technical field of underground stations, and particularly relates to an underground station four-column pulley lifting device with a power bow.
Background
The ground platform buried garbage station is a device for carrying out garbage treatment by hiding the whole device in the ground, which is a household garbage collection, transfer and transportation device integrating sealing, environmental protection and high efficiency, and solves the problems of peculiar smell, odor, fly breeding and the like existing in the traditional garbage compressor in an open operation mode. The buried garbage compressor belongs to the field of garbage transferring station equipment.
When the ground station is filled with garbage, the ground station needs to be lifted, and then the whole truck is loaded and carried away, so that the ground station cannot be simply placed in a foundation pit when the ground station is arranged, a corresponding base structure, a lifting power structure, a transmission structure and the like are matched, and at present, the ground station technology is just started in China, related matched structure application patents about the ground station are not seen yet, the ground station device is developed, and the ground station device is a base power structure and a force transmission structure of the ground station bottom layer and is a lowest layer structure of the ground station device and used for providing a support and power for lifting the ground station.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the four-column pulley lifting device for the underground station, which has a compact structure and can synchronously lift four corners of the underground station and ensure the lifting stability of the underground station.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
four post pulleys of ground buries lift device with power bow, wherein: comprises a left base support, a right base support and a middle power structure, wherein the left base support comprises a left horizontal support, a left front upright and a left rear upright, the lower end of the left front upright is fixed at the front end of the left horizontal support, the lower end of the left rear upright is fixed at the rear end of the left horizontal support, the left front upright, a left horizontal rod and the left rear upright form a -shaped structure with an upward opening, the right base support comprises a right front upright, a right horizontal support and a right rear upright, the lower end of the right front upright is fixed at the front end of the right horizontal support, the lower end of the right rear upright is fixed at the rear end of the right horizontal support, the left front upright, the left horizontal rod and the left rear upright form a -shaped structure with an upward opening, the middle power structure comprises a left power seat, a middle power seat, a right power seat, a guide rail, a sliding block, a power bow and a power cylinder, the left power seat is fixed on the left horizontal support, the right side of the left power seat is fixedly connected with the left side of the middle power seat, the right side of the middle power seat is fixedly connected with the left side of the right power seat, the right power seat is fixed on a right horizontal bracket, a cylinder body of a power cylinder is fixed in the middle of the middle power seat, a hydraulic shaft of the power cylinder is fixedly connected with a sliding block, the sliding block is arranged on a guide rail in a sliding way, the power cylinder can push the sliding block to slide on the guide rail, a power bow comprises a left bow rod and a right bow rod, a traction rope fixing plate is fixed at the rear end of the cylinder body of the power cylinder, one end of the left bow rod is fixedly connected with the traction rope fixing plate, the other end of the left bow rod is fixedly connected with the left end of the middle power seat, one end of the right bow rod is fixedly connected with the traction rope fixing plate, the other end of the right bow rod is fixedly connected with the right end of the middle power seat, a first fixed pulley is fixed at the upper end of a left front upright, a second fixed pulley is fixed at the lower end of the left front upright, a third fixed pulley is fixed at the upper end of the left rear upright, a fourth fixed pulley is fixed at the lower end of the left rear upright, a fifth fixed pulley is fixed at the upper end of the right front upright post, a sixth fixed pulley is fixed at the lower end of the right front upright post, a seventh fixed pulley is fixed at the upper end of the right rear upright post, an eighth fixed pulley is fixed at the lower end of the right rear upright post, a ninth fixed pulley is fixed at the front part of the left power seat, a tenth fixed pulley is fixed at the rear part of the left power seat, an eleventh fixed pulley is fixed at the front part of the right power seat, a twelfth fixed pulley is fixed at the rear part of the right power seat, a thirteenth fixed pulley is arranged at the left side of the middle power seat, a fourteenth fixed pulley is arranged at the right side of the middle power seat, a first sliding block pulley is fixed at the left side of the sliding block, a second sliding block pulley is fixed at the sliding block, wherein the thirteenth fixed pulley, the fourteenth fixed pulley, the first sliding block pulley and the second sliding block pulley are double-layer pulley pieces capable of winding two traction ropes, two fixing holes are respectively arranged at the left side and the right side of the traction rope fixing plate, the four-column pulley hanging basket device further comprises a traction rope structure, wherein the traction rope structure comprises a left front traction rope, a left rear traction rope, a right front traction rope and a right rear traction rope, one end of the left front traction rope is fixedly connected with the left front end of the lifted platform, the other end of the left front traction rope is fixedly connected with the right front end of the lifted platform after sequentially winding the first fixed pulley, the second fixed pulley, the ninth fixed pulley and the first layer of the thirteenth fixed pulley and the first layer of the first sliding block pulley, one end of the left rear traction rope is fixedly connected with the left rear end of the lifted platform, the other end of the left rear traction rope is fixedly connected with the left rear end of the lifted platform after sequentially winding the third fixed pulley, the fourth fixed pulley, the tenth fixed pulley and the second layer of the thirteenth fixed pulley and the second layer of the first sliding block pulley, one end of the right front traction rope is fixedly connected with the right front end of the lifted platform, and the other end of the right front traction rope is sequentially wound around the fifth fixed pulley, the first layer of the sixth fixed pulley, the eleventh fixed pulley, the first layer of the fourteenth fixed pulley and the first layer of the second sliding block pulley are fixed in the first fixing hole on the right side of the traction rope fixing plate, one end of the right rear traction rope is fixedly connected with the right rear end of the lifted platform, the other end of the right rear traction rope sequentially winds the seventh fixed pulley, the eighth fixed pulley, the twelfth fixed pulley, the second layer of the fourteenth fixed pulley and the second layer of the second sliding block pulley and is fixed in the second fixing hole on the right side of the traction rope fixing plate, and when the sliding block is pushed forward by the power cylinder, the first sliding block pulley and the second sliding block pulley move forward, so that one end, connected with the lifted platform, of each traction rope moves upwards, and four corners of the traction rope from the left front, the left rear, the right front and the right rear are uniformly pulled up by the lifted platform.
In order to optimize the technical scheme, the specific measures adopted further comprise:
when the sliding block is pushed forward by the power cylinder, the forward movement amount of the first sliding block pulley and the second sliding block pulley is one half of the upward movement amount of one end, connected with the lifted platform, of each traction rope.
The left bow rod and the right bow rod of the power bow are fixedly connected with the rear end of the traction rope fixing plate through the tensioning pieces respectively, and the length of each tensioning piece can be adjusted, so that the left bow rod and the right bow rod are fixedly connected with the traction rope fixing plate.
The tensioning piece is a split bolt.
The left front upright post, the left rear upright post, the right front upright post and the right rear upright post are respectively and vertically fixed at four corners of the foundation pit, the left horizontal support and the right horizontal support are respectively and horizontally fixed on the left side and the right side of the bottom surface of the foundation pit, and the guide rail is fixed in the middle of the bottom surface of the foundation pit.
The power cylinder is a hydraulic cylinder.
The left front upright post, the left rear upright post, the right front upright post, the right rear upright post, the left horizontal bracket and the right horizontal bracket are all made of steel materials.
The power bow is a steel rod.
The four-column pulley lifting device for the underground station with the power bow is characterized in that a hydraulic power device is arranged at the bottom layer of the underground station, a sliding block driven by a hydraulic cylinder is arranged, the sliding block can slide back and forth on a sliding rail, the power device is transversely arranged at the bottom of a foundation pit, space can be effectively saved, four vertical columns and two horizontal supports are arranged, four vertical edges and the bottom edge of the foundation pit are supported by the steel supports to form a stable frame, and the underground station is conveniently lifted by a lifting platform to be installed on the frame. According to the invention, the fixed pulleys are arranged on the four vertical upright posts and the power seat, the sliding block pulleys are arranged on the sliding blocks, one ends of the four traction ropes are respectively connected with four corners of the ground-buried station platform which is arranged on the four vertical upright posts, the other ends of the four traction ropes are wound around the fixed pulleys and the sliding block pulleys and are connected with the power seat, once the sliding block slides forwards, the sliding block pulleys are far away from the fixed points of the traction ropes connected with the power seat, the traction ropes are pulled by the sliding block pulleys to move so as to force the traction ropes to move upwards with the connection points of the ground-buried station lifted platform, thus the lifted platform is lifted, the four traction ropes respectively lift the four corners of the lifted platform, and the four traction ropes are pulled by the same sliding block, so that the four traction ropes are completely synchronous, and the lifted platform can be lifted very stably at a uniform speed. In actual use, a compression station for compressing garbage is placed on a lifted platform, the compression station is provided with a compression structure for storing garbage cavities and compressing garbage, because the structure is complex, the gravity center of the lifted platform is possibly deviated, so that when the lifted platform is lifted, the four traction ropes are stressed unevenly, because the four traction ropes are fixed on a traction rope fixing plate, the traction rope fixing plate is supported by a power cylinder, the rear end of the power cylinder is subjected to a certain bending shearing force, and the safety use of the ground burying four-column pulley lifting device is affected.
Drawings
FIG. 1 is a schematic view of the structure of the present invention without a pulling rope installed;
FIG. 2 is a schematic view of the structure of the present invention after installation of a pulling rope;
FIG. 3 is a state of use of the present invention;
FIG. 4 is a bottom view of FIG. 3;
fig. 5 is a front view of fig. 3.
The reference numerals are: the left side seat support 1, the first fixed pulley 11a, the second fixed pulley 11b, the left side horizontal support 12, the left front pillar 11, the left rear pillar 13, the third fixed pulley 13a, the fourth fixed pulley 13b, the right side seat support 2, the right front pillar 21, the fifth fixed pulley 21a, the sixth fixed pulley 21b, the right side horizontal support 22, the right rear pillar 23, the seventh fixed pulley 23a, the eighth fixed pulley 23b, the middle power structure 3, the left power seat 31, the ninth fixed pulley 31a, the middle power seat 32, the thirteenth fixed pulley 32a, the fourteenth fixed pulley 32b, the right power seat 33, the eleventh fixed pulley 33a, the twelfth fixed pulley 33b, the guide rail 34, the slider 35, the second slider pulley 35a, the power bow 36, the power cylinder 37, the pulling rope fixing plate 37a, the fixing hole 37b, the tension piece 38, the pulling rope structure 4, the left front pulling rope 41, the left rear pulling rope 42, the right front pulling rope 43, the right rear pulling rope 44, the lifted platform 5, and the pulling rope 51 at the connection point of the lifted platform.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
The four post pulleys of ground buries station lift device with power bow of this embodiment, wherein: the power structure comprises a left base support 1, a right base support 2 and a middle power structure 3 which are arranged in a foundation pit, wherein the left base support 1 comprises a left horizontal support 12, a left front upright 11 and a left rear upright 13, the lower end of the left front upright 11 is fixed at the front end of the left horizontal support 12, the lower end of the left rear upright 13 is fixed at the rear end of the left horizontal support 12, the left front upright 11, a left horizontal rod 12 and the left rear upright 13 form a -shaped structure with an upward opening, the right base support 2 comprises a right front upright 21, a right horizontal support 22 and a right rear upright 23, the lower end of the right front upright 21 is fixed at the front end of the right horizontal support 22, the lower end of the right rear upright 23 is fixed at the rear end of the right horizontal support 22, the left front upright 11, the left horizontal rod 12 and the left rear upright 13 form a -shaped structure with an upward opening, the middle power structure 3 comprises a left power seat 31, a middle power seat 32, a right power seat 33, a guide rail 34, a sliding block 35, a power bow 36 and a power cylinder 37, the left power seat 31 is fixed on the left horizontal bracket 12, the right side of the left power seat 31 is fixedly connected with the left side of the middle power seat 32, the right side of the middle power seat 32 is fixedly connected with the left side of the right power seat 33, the right power seat 33 is fixed on the right horizontal bracket 22, the cylinder body of the power cylinder 37 is fixed in the middle of the middle power seat 32, the hydraulic shaft of the power cylinder 37 is fixedly connected with the sliding block 35, the sliding block 35 is slidingly arranged on the guide rail 34, the power cylinder 37 can push the sliding block 35 to slide on the guide rail 34, the power bow 36 comprises a left bow rod and a right bow rod, the rear end of the cylinder body of the power cylinder 37 is fixedly connected with a traction rope fixing plate 37a, one end of the left bow rod is fixedly connected with the traction rope fixing plate 37a, the other end of the left bow rod is fixedly connected with the left end of the middle power seat 32, one end of the right bow rod is fixedly connected with the traction rope fixing plate 37a, the other end of the right bow rod is fixedly connected with the right end of the middle power seat 32, the upper end of the left front upright 11 is fixed with a first fixed pulley 11a, the lower end of the left front upright 11 is fixed with a second fixed pulley 11b, the upper end of the left rear upright 13 is fixed with a third fixed pulley 13a, the lower end of the left rear upright 13 is fixed with a fourth fixed pulley 13b, the upper end of the right front upright 21 is fixed with a fifth fixed pulley 21a, the lower end of the right front upright 21 is fixed with a sixth fixed pulley 21b, the upper end of the right rear upright 23 is fixed with a seventh fixed pulley 23a, the lower end of the right rear upright 23 is fixed with an eighth fixed pulley 23b, the front part of the left power seat 31 is fixed with a ninth fixed pulley 31a, the rear part of the left power seat 31 is fixed with a tenth fixed pulley, the front part of the right power seat 33 is fixed with an eleventh fixed pulley 33a, the rear part of the right power seat 33 is fixed with a twelfth fixed pulley 33b, the left side of the middle power seat 32 is provided with a thirteenth fixed pulley 32a, the right side of the middle power seat 32 is provided with a fourteenth fixed pulley 32b, the left side of the slide block 35 is fixed with a first slide block pulley, the second slider pulley 35a is fixed on the slider 35, wherein the thirteenth fixed pulley 32a, the fourteenth fixed pulley 32b, the first slider pulley and the second slider pulley 35a are double-layer pulley pieces capable of winding two traction ropes, two fixing holes 37b are respectively arranged on the left side and the right side of the traction rope fixing plate 37a, the four-column pulley basket device further comprises a traction rope structure 4, the traction rope structure 4 comprises a left front traction rope 41, a left rear traction rope 42, a right front traction rope 43 and a right rear traction rope 44, one end of the left front traction rope 41 is fixedly connected with the left front end of the lifted platform, the other end of the left front traction rope 41 is fixedly connected with the left rear end of the lifted platform after sequentially winding the first layer of the first fixed pulley 11a, the second fixed pulley 11b, the ninth fixed pulley 31a and the thirteenth fixed pulley 32a and the first layer of the first slider pulley, the other end is fixed in a second fixing hole 37b on the left side of a traction rope fixing plate 37a after being sequentially wound around a second layer of a third fixed pulley 13a, a fourth fixed pulley 13b, a tenth fixed pulley and a thirteenth fixed pulley 32a and a second layer of a first sliding block pulley, one end of a right front traction rope 43 is fixedly connected with the right front end of a lifted platform, the other end is sequentially wound around a first layer of a fifth fixed pulley 21a, a sixth fixed pulley 21b, an eleventh fixed pulley 33a and a fourteenth fixed pulley 32b and a first layer of a second sliding block pulley 35a, one end of a right rear traction rope 44 is fixedly connected with the right rear end of the lifted platform, the other end is sequentially wound around a seventh fixed pulley 23a, an eighth fixed pulley 23b, a twelfth fixed pulley 33b and a second layer of a second sliding block pulley 35a, and is fixedly arranged in a second fixing hole 37b on the right side of the traction rope fixing plate 37a, when the right rear traction rope 44 a is pushed by a power cylinder to lift the right front end of the lifted platform, and the left sliding block 35a front sliding block is pulled forward at a constant speed by the right front end of the lifting platform.
In the embodiment, when the sliding block 35 is pushed forward by the power cylinder 37, the first sliding block pulley and the second sliding block pulley 35a move forward by a half amount of the upward movement amount of the end of each pulling rope connected with the lifted platform.
In the embodiment, the left bow rod and the right bow rod of the power bow 36 are respectively fixedly connected with the rear end of the traction rope fixing plate 37a through respective tensioning pieces 38, and the length of the tensioning pieces 38 can be adjusted, so that the left bow rod and the right bow rod are fixedly connected with the traction rope fixing plate 37 a.
In an embodiment, the tension member 38 is a split bolt.
In the embodiment, the left front upright 11 and the left rear upright 13, the right front upright 21 and the right rear upright 23 are respectively and vertically fixed at four corners of the foundation pit, the left horizontal bracket 12 and the right horizontal bracket 22 are respectively and horizontally fixed on the left side and the right side of the bottom surface of the foundation pit, and the guide rail 34 is fixed in the middle of the bottom surface of the foundation pit.
In an embodiment, the power cylinder 37 is a hydraulic cylinder.
In the embodiment, the left front upright 11, the left rear upright 13, the right front upright 21, the right rear upright 23, the left horizontal bracket 12 and the right horizontal bracket 22 are all made of steel materials.
In an embodiment, the power bow 36 is a steel rod.
The device of the invention after the four-column pulley lifting device of the ground burial station with the power bow is provided with the traction rope is shown in fig. 2, as can be seen from fig. 3, four connection points 51 of the lifted platform and the traction rope are respectively arranged at four corners of the lifted platform 5, and the four traction ropes have the following trend relations: one end of a left front pulling rope 41 is fixedly connected with the left front end of the lifted platform, the other end is fixedly connected with the right front end of the lifted platform after sequentially winding the first layer of the first fixed pulley 11a, the second fixed pulley 11b, the ninth fixed pulley 31a and the thirteenth fixed pulley 32a and the first layer of the first sliding pulley, one end of a left rear pulling rope 42 is fixedly connected with the left rear end of the lifted platform, the other end is fixedly connected with the second layer of the third fixed pulley 13a, the fourth fixed pulley 13b, the tenth fixed pulley, the second layer of the thirteenth fixed pulley 32a and the second layer of the first sliding pulley in sequence and is fixedly connected with the right front end of the lifted platform after sequentially winding the first layer of the fifth fixed pulley 21a, the sixth fixed pulley 21b, the eleventh fixed pulley 33a and the first layer of the fourteenth fixed pulley 32b and the first layer of the second sliding pulley 35a after sequentially winding the second layer of the first fixed pulley 21a and the thirteenth fixed pulley 32a, one end of the right rear pulling rope 44 is fixedly connected with the right rear end of the lifted platform, and the other end is fixedly connected with the second fixing hole 37b on the right side of the pulling rope fixing plate 37a after the second layer of the seventh fixed pulley 23a, the eighth fixed pulley 23b, the twelfth fixed pulley 33b, the fourteenth fixed pulley 32b and the second layer of the second sliding block pulley 35a are sequentially wound, and is fixed in the second fixing hole 37b on the right side of the pulling rope fixing plate 37a, as can be seen from fig. 2, the positions of the fixed pulleys and the sliding block pulleys (the positions of the first sliding block pulley and the tenth fixed pulley are blocked, the positions of the first sliding block pulley and the second sliding block pulley 35a on the sliding block 35 are opposite, the position of the tenth fixed pulley on the left power seat 31 corresponds to the position of the twelfth fixed pulley 33b on the right power seat 33), all pulling ropes follow the upright post and the power seat track, after the whole ground burying station device is assembled, the traction ropes are in a hidden state, and as can be seen from fig. 4, in one pulley block, only the sliding block pulley is a movable pulley, and the other pulleys are fixed pulleys, so that when the sliding block 35 is pushed forward by the power cylinder 37, the forward movement amount of the first sliding block pulley and the second sliding block pulley 35a is half of the upward movement amount of one end, connected with the lifted platform, of each traction rope, and the stroke of the sliding block 35 can be effectively saved.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the invention without departing from the principles thereof are intended to be within the scope of the invention as set forth in the following claims.
Claims (3)
1. Four post pulleys of ground buries station lift device with power bow, characterized by: including left side base support (1), right side base support (2) and middle part power structure (3) of installing in the foundation ditch, left side base support (1) include left side horizontal support (12), left front column (11) and left rear column (13), left front column (11) lower extreme fix the front end at left side horizontal support (12), left rear column (13) lower extreme fix the rear end at left side horizontal support (12), left front column (11), left horizon bar (12) and left rear column (13) constitute a shape structure that the opening is up, right side base support (2) include right front column (21), right side horizontal support (22) and right rear column (23), right front column (21) lower extreme fix the front end at right side horizontal support (22), right rear column (23) lower extreme fix the rear end at right side horizontal support (22), right front column (21), right front column (22) and right rear column (23) and a rear column (23) constitute power structure that the opening is up, power bracket (37) and power bracket (35), power bracket (37) are formed in power seat (37), the left power seat (31) is fixed on the left horizontal bracket (12), the right side of the left power seat (31) is fixedly connected with the left side of the middle power seat (32), the right side of the middle power seat (32) is fixedly connected with the left side of the right power seat (33), the right power seat (33) is fixed on the right horizontal bracket (22), the cylinder body of the power cylinder (37) is fixed in the middle of the middle power seat (32), the hydraulic shaft of the power cylinder (37) is fixedly connected with the sliding block (35), the sliding block (35) is slidably arranged on the guide rail (34), the power cylinder (37) can push the sliding block (35) to slide on the guide rail (34), the power bow (36) comprises a left bow rod and a right bow rod, the rear end of the cylinder body of the power cylinder (37) is fixedly connected with a traction rope fixing plate (37 a), one end of the left bow rod is fixedly connected with the left end of the middle power seat (32), one end of the right bow rod is fixedly connected with the left end of the traction rope fixing plate (37 a), one end of the right bow rod is fixedly connected with the left end of the middle power seat (32), the right end of the right bow rod is fixedly connected with the left end of the front end (11 a), the front end of the front end (11 a) is fixedly connected with the front end (11 a), the front end (11 a) is fixedly connected with the front end of the front end (11 a), the front end of the front end (11 a fixedly connected with the front end of the front end (11 a, a fourth fixed pulley (13 b) is fixed at the lower end of the left rear upright post (13), a fifth fixed pulley (21 a) is fixed at the upper end of the right front upright post (21), a sixth fixed pulley (21 b) is fixed at the lower end of the right front upright post (21), a seventh fixed pulley (23 a) is fixed at the upper end of the right rear upright post (23), an eighth fixed pulley (23 b) is fixed at the lower end of the right rear upright post (23), a ninth fixed pulley (31 a) is fixed at the front part of the left power seat (31), a tenth fixed pulley is fixed at the rear part of the left power seat (31), an eleventh fixed pulley (33 a) is fixed at the front part of the right power seat (33), a twelfth fixed pulley (33 b) is fixed at the rear part of the right power seat (33), a thirteenth fixed pulley (32 a) is arranged at the left side of the middle power seat (32), a fourteenth fixed pulley (32 b) is arranged at the right side of the middle power seat (32), a first sliding block pulley (23 b) is fixed at the left side of the sliding block (35), a sliding block (35) is fixed at the right side of the sliding block, a second sliding block (35) is fixed at the right side of the sliding block (35), a sliding block (37 b) is fixed at the left side of the sliding block (37 b), a sliding block (37 b) is fixed at the sliding block (37 b), and the sliding block (37 b) is fixed at the two sides of the sliding block (37 b) is fixed at the sliding block respectively, the traction rope structure (4) comprises a left front traction rope (41), a left rear traction rope (42), a right front traction rope (43) and a right rear traction rope (44), one end of the left front traction rope (41) is fixedly connected with the left front end of the lifted platform, the other end of the left front traction rope is sequentially wound around a first fixed pulley (11 a), a second fixed pulley (11 b), a ninth fixed pulley (31 a), a thirteenth fixed pulley (32 a) and the first layer of the first sliding block pulley, and then is fixed in a first fixed hole (37 b) on the left side of a traction rope fixed plate (37 a), one end of the left rear traction rope (42) is fixedly connected with the left rear end of the lifted platform, the other end is fixed in a second fixing hole (37 b) on the left side of a traction rope fixing plate (37 a) after sequentially winding a second layer of a third fixed pulley (13 a), a fourth fixed pulley (13 b), a tenth fixed pulley and a thirteenth fixed pulley (32 a) and a second layer of a first sliding block pulley, one end of a right front traction rope (43) is fixedly connected with the right front end of a lifted platform, the other end is fixedly connected with the right rear end of the lifted platform after sequentially winding a first layer of a fifth fixed pulley (21 a), a sixth fixed pulley (21 b), an eleventh fixed pulley (33 a) and a fourteenth fixed pulley (32 b) and a first layer of a second sliding block pulley (35 a), one end of a right rear traction rope (44) is fixedly connected with the right rear end of the lifted platform, the other end of the traction rope is fixed in a second fixing hole (37 b) on the right side of a traction rope fixing plate (37 a) after sequentially winding a second layer of a seventh fixed pulley (23 a), an eighth fixed pulley (23 b), a twelfth fixed pulley (33 b) and a fourteenth fixed pulley (32 b) and a second layer of a second sliding block pulley (35 a), when the sliding block (35) is pushed forwards by a power cylinder (37), the first sliding block pulley and the second sliding block pulley (35 a) move forwards, so that one end, connected with a lifted platform, of each traction rope moves upwards, and the traction rope is pulled up from four corners of the left front, the left rear, the right front and the right rear at a constant speed; the left bow rod and the right bow rod of the power bow (36) are fixedly connected with the rear end of the traction rope fixing plate (37 a) through respective tensioning pieces (38), and the length of each tensioning piece (38) can be adjusted so that the left bow rod and the right bow rod are tightly connected with the traction rope fixing plate (37 a); the tensioning piece (38) is a split bolt; the power bow (36) is a steel rod.
2. The four-post pulley lifting device for a ground buried station with a power bow according to claim 1, characterized in that: when the sliding block (35) is pushed forward by the power cylinder (37), the forward movement amount of the first sliding block pulley and the second sliding block pulley (35 a) is one half of the upward movement amount of one end of each traction rope connected with the lifted platform.
3. The four-post pulley lifting device for a ground buried station with a power bow according to claim 2, characterized in that: the left front upright post (11) and the left rear upright post (13), the right front upright post (21) and the right rear upright post (23) are respectively and vertically fixed at four corners of a foundation pit, the left horizontal support (12) and the right horizontal support (22) are respectively and horizontally fixed at the left side and the right side of the bottom surface of the foundation pit, and the guide rail (34) is fixed at the middle part of the bottom surface of the foundation pit.
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