A vertical underground garage with a crawler-type circulating elevator system

Abstract

The present invention belongs to the technical field of vertical underground garages and discloses a vertical underground garage with a crawler-type circulating elevator system, comprising a segment shaft, a floor plate, and a crawler-type circulating elevator system. The crawler-type circulating elevator system is centrally located at the center of the segment shaft, and the floor plate vertically divides the segment shaft into several parking floors. The crawler-type circulating elevator system includes two sets of sprockets, a crawler chain, a guide mechanism, and several open cars, with the crawler chain assembled on the two sprockets. The open cars are fixed to the crawler chain at intervals, and the open cars include a vertical base plate and several load-bearing rods horizontally welded to the bottom of the front of the vertical base plate. The guide mechanism is arranged on the back of the vertical base plate and guides the open cars to keep them in a vertical state at all times. The advantages of the present invention are: by adopting a circulating elevator system, multiple cars can be transported and vehicles can be parked and picked up without stopping, effectively improving the carrying capacity and efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field of vertical underground garages, and in particular relates to a vertical underground garage with a crawler-type circulating elevator system. Background Art

[0002] How to provide enough parking spaces in a limited space is a problem that everyone has been working on solving. Therefore, vertical underground garages came into being.

[0003] The vertical underground garage formed by vertical excavation is divided into several floors, each of which can be used for parking. Cars drive into the entrance of the vertical underground garage on the ground and are transported to the corresponding floor for parking by vertical elevators. However, for such underground garages with great depth and large traffic volume, conventional vertical elevators are insufficient in transportation efficiency and cannot solve the problem of large traffic volume transportation in urban areas. It is necessary to install other types of elevator systems in the vertical underground garage to solve the problem of great depth and large traffic volume.

[0004] At present, there are also some circular elevator systems that are arranged in a whole circulation circle. However, the parking of a single elevator car requires the entire circulation circle to stop and wait for the parking of a single elevator car, which seriously reduces the operating efficiency of the whole circular elevator system. Summary of the Invention

[0005] The purpose of the present invention is to provide a vertical underground garage with a crawler-type circulating elevator system in accordance with the above-mentioned deficiencies of the prior art. The vertical underground garage arranges the crawler-type circulating elevator system in the pipe segment shaft, so that a number of open cabins that can always remain in a vertical state are arranged at intervals on the crawler chain of the circulating elevator system. The vehicle loading plate on the open cabin is composed of a number of load-bearing rods distributed at intervals, and each parking floor is arranged with a forward and backward telescopic translation type extraction vehicle platform. The translation type extraction vehicle platform is composed of a grid platform. The vehicle loading plate on the open cabin can pass through the gap between the grid platforms of the translation type extraction vehicle platform to realize the transfer of the vehicle transfer chassis and the vehicle to or from the translation type extraction vehicle platform.

[0006] The purpose of the present invention is achieved by the following technical solutions:

[0007] A vertical underground garage with a crawler-type circulating elevator system comprises a segment shaft, floor slabs, and a crawler-type circulating elevator system. The segment shaft is composed of caisson segments, the crawler-type circulating elevator system is centrally located at the center of the segment shaft, and the floor slabs are sequentially arranged from top to bottom to vertically divide the segment shaft into a plurality of parking floors.

[0008] The crawler-type circulating elevator system includes two sets of sprockets, crawler chains, guide mechanisms, and several open cars. The two sets of sprockets are respectively arranged at the top and bottom of the segment shaft. The crawler chains are matched and fitted on the two sprockets and driven by the sprockets to rotate in a circular manner. The open cars are fixed to the crawler chains at intervals. The open cars include a vertical base plate and several load-bearing rods horizontally welded to the bottom of the front of the vertical base plate, and the load-bearing rods are spaced apart. The guide mechanism is arranged on the back of the vertical base plate and guides the open cars to keep them in a vertical state at all times.

[0009] A parking floor entrance and a parking floor exit are respectively provided on the ground of each parking floor, the parking floor entrance is arranged correspondingly on the side of the downward transmission of the crawler chain, and the parking floor exit is arranged correspondingly on the side of the upward transmission of the crawler chain; the parking floor entrance and the parking floor exit are both provided with a translational extraction vehicle platform, the translational extraction vehicle platform includes a grid platform and slide rails arranged on both sides of the grid platform, the grid platform includes a cross bar at the rear end and a number of longitudinal bars vertically welded to the cross bar, the longitudinal bars are spaced apart and the gap is greater than the diameter of the load-bearing bar.

[0010] The top floor of the segment shaft is provided with a garage entrance and a garage exit on the ground, and both the garage entrance and the garage exit are provided with the translational extraction vehicle platform.

[0011] A plurality of movable rollers are provided on both sides of the grid platform. The rollers are driven by motors and move on the slide rails on both sides.

[0012] The crawler chain consists of inner links and outer links that are arranged in sequence and staggered. The inner links include two parallel inner link plates and two groups of roller assemblies arranged between the two inner link plates. The roller assembly consists of a sleeve and a roller sleeved outside the sleeve; the outer links include two parallel outer link plates and two groups of pins arranged between the two outer link plates. The outer links are arranged between two adjacent inner links, and the two pins in the outer links are respectively inserted into the sleeves of the two adjacent inner links.

[0013] One of the pins in the outer chain links protrudes from the outer link plate, and the pin and the outer link plate can rotate relative to each other. The back side of the vertical base plate in the open car is fixedly connected to the end of the pin, and the other end of the pin also protrudes from the outer link plate and is fixedly connected to the guide mechanism.

[0014] The guide mechanism includes a cross guide frame and a guide base plate, the center of the cross guide frame is fixedly connected to the end of the pin shaft, and the four ends of the cross guide frame are respectively fixedly provided with guide columns, and two groups of guide grooves are provided on the vertically arranged guide base plate, one group of guide grooves is used to guide the ascent of the open car, and the other group of guide grooves is used to guide the descent of the open car. The guide grooves include a centrally arranged vertical center groove and two vertical side grooves arranged on both sides of the vertical center groove, the vertical center groove is used to guide the guide columns at the vertical ends of the cross guide frame, and the vertical side grooves are used to guide the guide columns at the horizontal ends of the cross guide frame; wherein, the top of the vertical side grooves located on the outside of each group of guide grooves also has an arc-shaped guide groove to adapt to the turning of the open car at the sprocket.

[0015] The garage entrance is provided with a vehicle transport chassis, and the lower bottom surface of the vehicle transport chassis is provided with two sets of front and rear running wheels, and the lateral length of the running wheels is greater than the lateral distance between at least two of the load-bearing rods.

[0016] When the vehicle stops on the vehicle transfer chassis at the entrance of the garage, the vehicle transfer chassis automatically moves to the translatory extraction vehicle platform, and the translatory extraction vehicle platform translates outward from the ground to the movement path of the open car. The open car on the ascending crawler chain passes through the gap of the translatory extraction vehicle platform and lifts the vehicle transfer chassis off the translatory extraction vehicle platform to sit on the open car. Then, the translatory extraction vehicle platform is controlled to retract to the ground.

[0017] According to the parking floor where the vehicle needs to stop, when the open car is in a descending state and approaches the parking floor to be stopped, the movable extraction vehicle platform of the parking floor is controlled to move from the inside to the outside to the movement path of the open car, and the open car in a descending state passes downward through the gap of the movable extraction vehicle platform, and leaves the vehicle transfer chassis and the vehicle thereon on the movable extraction vehicle platform, and then controls the movable extraction vehicle platform to retract inward to the ground of the parking floor.

[0018] The advantages of the present invention are:

[0019] (1) The circular vertical underground garage adopts a circulating elevator system, which can realize multi-car vehicle transportation, effectively improving the carrying capacity compared with the traditional single-car elevator system;

[0020] (2) The open car and the translational extraction vehicle platform adopt an interval-type grid platform, which enables the open car to pass through the grid platform gap of the translational extraction vehicle platform during normal rotation, so as to transfer the vehicle transfer chassis and the vehicle to the translational extraction vehicle platform or take it out from the translational extraction vehicle platform. The vehicle can be parked and retrieved without stopping the elevator system, which greatly improves the operating efficiency of the entire vertical underground garage and greatly shortens the parking and retrieval time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A front view of a vertical underground garage with a crawler-type circulating elevator system according to the present invention;

[0022] Figure 2 For the present invention Figure 1 The main view of the crawler type circulating elevator system;

[0023] Figure 3 A side view of a vertical underground garage with a crawler-type circulating elevator system according to the present invention;

[0024] Figure 4 For the present invention Figure 3 A side view showing the relationship between the crawler-type circulating elevator system and the positions of the various parking floors;

[0025] Figure 5 A plan view of any parking floor in the present invention;

[0026] Figure 6 For the present invention Figure 5 A local enlarged schematic diagram of point A in FIG;

[0027] Figure 7 A three-dimensional view of the open elevator car and the cross guide frame provided on its back in the present invention;

[0028] Figure 8 A perspective view of an open elevator car with a vehicle transfer chassis resting on it in the present invention;

[0029] Figure 9 A three-dimensional view of the grooves provided on the guide substrate of the present invention;

[0030] Figure 10 Schematic diagram of the motion trajectory of the cross guide frame of the open car on the guide base plate in the present invention;

[0031] Figure 11 It is a side view of the open car of the present invention;

[0032] Figure 12 A partial side view of the connection between the inner link and the outer link of the present invention;

[0033] Figure 13It is a top view of the partial connection of the inner link and the outer link in the present invention. DETAILED DESCRIPTION

[0034] The features of the present invention and other related features are further described in detail below through embodiments in conjunction with the accompanying drawings to facilitate understanding by those skilled in the art:

[0035] like Figure 1-13 , the marks in the figure are: segment shaft 1, floor plate 2, crawler circulating elevator system 3, sprocket 31, crawler chain 32, pin 3201, inner chain link 3202, outer chain link 3203, inner chain plate 3204, roller assembly 3205, outer chain plate 3206, guide mechanism 33, guide base plate 3301, outer vertical side groove 3302, inner vertical side groove 3303, vertical center groove 3304, cross guide frame 3305, open car 34, vertical base plate 3401, load-bearing rod 3402, guardrail 3403, translational extraction vehicle platform 4, grid platform 41, longitudinal rod 4101, transverse rod 4102, slide rail 42, roller 43, vehicle transfer chassis 5, running wheel 51.

[0036] Example: Figure 1-13 As shown, this embodiment specifically relates to a vertical underground garage with a crawler-type circulating elevator system, which includes a segment shaft 1, a floor plate 2 and a crawler-type circulating elevator system 3.

[0037] like Figure 1-13 As shown, the segment shaft 1 is circular and composed of assembled caisson segments. Floor plates 2 are arranged sequentially from top to bottom to vertically divide the segment shaft 1 into several parking levels. A crawler-type circulating elevator system 3 is centrally located within the center of the segment shaft 1, occupying a cubic space.

[0038] like Figure 1-13 As shown, the crawler-type circulating elevator system 3 includes two sets of sprockets 31, a crawler chain 32, a guide mechanism 33, and several open cars 34. The two sets of sprockets 31 are located at the top and bottom of the space occupied by the crawler-type circulating elevator system 3. The sprockets 31 are driven by a motor, and the crawler chains 32 are mounted on the two sets of sprockets 31, forming a loop. Driven by the sprockets 31, the crawler chains 32 rotate around the two sprockets 31 in a circular motion, with the crawler chain 32 on one side ascending and the crawler chain 32 on the other side descending. Several open cars 34 are spaced apart on the crawler chains 32. The backs of the open cars 34 are connected to guide mechanisms 33. This ensures that the open cars 34 remain upright as they rotate with the crawler chains 32, preventing vehicles loaded on them from tipping over.

[0039] like Figure 1-13As shown, the crawler chain 32 is composed of inner links 3202 and outer links 3203 which are arranged in sequence and staggered. The inner link 3202 includes two parallel inner link plates 3204 and two groups of roller assemblies 3205 arranged between the two inner link plates 3204. The roller assembly 3205 is composed of a sleeve and a roller sleeved outside the sleeve; the outer link 3203 includes two parallel outer link plates 3206 and two groups of pins 3201 arranged between the two outer link plates 3206. The outer link 3203 is arranged between two adjacent inner links 3202. The two pins 3201 in the outer link 3203 are respectively inserted into the sleeves of the two adjacent inner links. At the setting position of the open car 34, one of the pins 3201 in the outer chain link 3203 protrudes from the outer link plate 3206, and the pin 3201 and the outer link plate 3206 can rotate relative to each other. The back side of the vertical base plate 3401 in the open car 34 is fixedly connected to the end of the pin 3201, and the other end of the pin 3201 also protrudes from the outer link plate and is fixedly connected to the guide mechanism 33.

[0040] like Figure 1-13 As shown, the open car 34 includes a vertical base plate 3401 and several load-bearing rods 3402 horizontally welded to the bottom of the front side of the vertical base plate 3401. The load-bearing rods 3402 are spaced apart. When fixing the load-bearing rods 3402 to the vertical base plate 3401, sufficient load-bearing capacity should be ensured when the vehicle is parked on it. Therefore, slots can be preset on the vertical base plate 3401, and the load-bearing rods 3402 can be inserted into the slots and then welded and fixed.

[0041] like Figure 1-13 As shown, the guide mechanism 33 is arranged on the back of the vertical base plate 3401 and guides the open car 34 to keep it in a vertical state. The guide mechanism 33 includes a cross guide frame 3305 and a guide base plate 3301. The center area of ​​the cross guide frame 3305 is fixedly connected to the end of the pin 3201, and the four ends of the cross guide frame 3305 are respectively provided with guide posts. Figure 9 and 10As shown, the guide base plate 3301 is arranged vertically and is composed of two base plates arranged in a close relationship, namely a large base plate and another smaller base plate arranged in a close relationship thereon. The guide base plate 3301 is provided with two sets of mutually symmetrical guide grooves as a whole, wherein one set of guide grooves is used to guide the upward movement of the open car 34, and the other set of guide grooves is used to guide the downward movement of the open car 34, that is, the two sets of guide grooves are responsible for the entire cyclic rotation movement of the crawler chain 32 and the open car 34 thereon. Each set of guide grooves includes a centrally arranged vertical center groove 3304 and two outer vertical side grooves 3302 and inner vertical side grooves 3303 arranged on both sides of the vertical center groove 3304. The vertical center groove 3304 is used to guide the guide columns at the vertical ends of the cross guide frame 3305, and the outer vertical side grooves 3302 and the inner vertical side grooves 3303 are respectively used to guide the guide columns at the horizontal ends of the cross guide frame 3305; wherein, the top of the outer vertical side groove 3302 also has an arc-shaped guide groove to adapt to the turning of the open car 34 at the sprocket 31. The inner vertical side groove 3303 and the vertical center groove 3304 are opened on the guide substrate 3301 and their depth reaches the thickness of the two substrates. The inner vertical side groove 3303 and the vertical center groove 3304 are both linear and the length is located between the two sprockets 31, while the outer vertical side groove 3302 is directly opened on the lower substrate, but it is a combination of linear + top arc type.

[0042] like Figure 9 、 10 As shown, the motion trajectory of the cross guide frame 3305 behind the open car 34 is described as follows:

[0043] (S1) When the open elevator car 34 moves in a purely vertical direction between the two sprockets 31, the guide posts at the vertical ends of the cross guide frame 3305 move along the vertical center groove 3304, and the guide posts at the horizontal ends of the cross guide frame 3305 move along the trajectories of the outer vertical side groove 3302 and the inner vertical side groove 3303 respectively.

[0044] (S2) When the open elevator car 34 moves to a position close to the sprocket 31, its motion trajectory will move in an arc around the sprocket 31, that is, the guide columns at the vertical ends of the cross guide frame 3305 gradually disengage from the vertical center groove 3304, and the guide columns at the horizontal inner ends of the cross guide frame 3305 also gradually disengage from the inner vertical side groove 3303, but the guide columns at the horizontal outer ends of the cross guide frame 3305 always move around the outer vertical side groove 3302.

[0045] (S3) When the open elevator car 34 moves to the highest position above the sprocket 31, the guide columns originally on the inner side of the cross guide frame 3305 become guide columns located on the outer side and enter the outer vertical side grooves 3302 of another group for guidance. As a result, the guide columns at both ends of the cross guide frame 3305 gradually enter the vertical center grooves 3304 of another group, and the guide columns originally on the outer side of the cross guide frame 3305 enter the inner vertical side grooves 3303 of another group.

[0046] ( S4 ) Based on steps S1 - S3 , the open car 34 performs a circular rotation motion on the crawler chain 32 .

[0047] like Figure 1-11 As shown, the top floor of the segment shaft 1 is equipped with a garage entrance and a garage exit, each of which is equipped with a translating extraction vehicle platform 4. Furthermore, each parking floor is provided with a parking floor entrance and a parking floor exit. The parking floor entrance corresponds to the area where the crawler chain 32 drives downward, and the parking floor exit corresponds to the area where the crawler chain 32 drives upward. Both the parking floor entrance and the parking floor exit are equipped with a translating extraction vehicle platform 4. The translating extraction vehicle platform 4 includes a bar platform 41 and slide rails 42 arranged on both sides of the bar platform 41. The bar platform 41 includes a horizontal bar 4102 at the rear end and a plurality of vertical bars 4101 welded perpendicularly to the horizontal bar 4102. The vertical bars 4101 are spaced apart and the gaps between them are greater than the diameter of the load-bearing bars 3402, so that they can pass through without being affected during relative lifting. A plurality of movable rollers 43 are provided on both sides of the bar platform 41. The rollers 43 are driven by a motor and run on the slide rails 42 on both sides.

[0048] It should be noted that a vehicle transport chassis 5 is provided at the garage entrance, and two sets of front and rear running wheels 51 are provided on the lower bottom surface of the vehicle transport chassis 5 . The lateral length of the running wheels 51 is greater than the lateral distance between at least two load-bearing rods 3402 .

[0049] like Figure 1-13 As described above, the working method of the vertical underground garage with the crawler-type circulating elevator system in this embodiment includes the following steps:

[0050] (S1) The vehicle drives to the garage entrance and stops. The vehicle transfer chassis 5 automatically drives under the vehicle chassis and lifts it off the ground. Then, it automatically drives to the corresponding translation type extraction vehicle platform 4 at the garage entrance to wait for transportation.

[0051] (S2) The platform 4 of the movable extraction vehicle is controlled to move outward from the ground to the movement path of the open car 34. The empty open car 34 on the crawler chain 32 in the ascending state passes through the gap of the movable extraction vehicle platform 4 and lifts the vehicle transfer chassis 5 off the movable extraction vehicle platform 4 to sit on the open car 34. Then, the platform 4 of the movable extraction vehicle is controlled to retract to the ground and reset. At the same time, the open car 34 rotates around the sprocket 31 to the descending channel.

[0052] (S3) After the open car 34 rotates around the sprocket 31 and onto the descending path, according to the desired parking floor specified by the algorithm, before the open car 34 descends to the corresponding parking floor, the bar platform 41 of the movable vehicle extraction platform 4 at the parking floor entrance is controlled to rapidly translate outward to the descending path of the open car 34. The open car 34 in the descending state passes through the gaps in the bar platform 41, and the vehicle transfer chassis 5 and the vehicle on it are seated on the bar platform 41 of the movable vehicle extraction platform 4. The movable vehicle extraction platform 4 is then controlled to retract to the parking floor ground. The vehicle transfer chassis 5 is then automatically controlled to move down from the movable vehicle extraction platform 4 and automatically park in an empty parking space on the parking floor.

[0053] (S4) When the user needs to pick up the car, the vehicle is controlled to move the chassis 5 under the chassis of the corresponding vehicle and transport it to the exit of the parking layer, and then drives to the translational pick-up vehicle platform 4 at the exit of the parking layer. When the empty open car 34 rises and approaches the parking floor, the translation-type vehicle extraction platform 4 is controlled to be translated in advance to the ascending path of the open car 34. The open car 34 in the ascending state passes through the gap of the grid platform 41, and the vehicle transfer chassis 5 on it and the vehicle conversion are synchronously seated on the platform of the open car 34. When the open car 34 rises and rotates around the sprocket 31 to the descending channel on the other side, the translation-type vehicle extraction platform 4 at the parking lot exit is controlled to extend outward to the descending channel of the open car 34, and the translation-type vehicle extraction platform 4 is extracted to the vehicle and vehicle transfer chassis 5 on the open car 34 by the same method as in step S3. Then, the translation-type vehicle extraction platform 4 is controlled to retract to the ground at the parking lot exit, and the vehicle transfer chassis 5 carries the vehicle to the designated pick-up position and then descends and separates from the vehicle, finally making it convenient for the user to pick up the vehicle and leave.

[0054] The beneficial effects of this embodiment are:

[0055] (1) The circular vertical underground garage adopts a circulating elevator system, which can realize multi-car vehicle transportation, effectively improving the carrying capacity compared with the traditional single-car elevator system;

[0056] (2) The open car and the translational extraction vehicle platform adopt an interval-type grid platform, which enables the open car to pass through the grid platform gap of the translational extraction vehicle platform during normal rotation, so as to transfer the vehicle transfer chassis and the vehicle to the translational extraction vehicle platform or take it out from the translational extraction vehicle platform. The vehicle can be parked and retrieved without stopping the elevator system, which greatly improves the operating efficiency of the entire vertical underground garage and greatly shortens the parking and retrieval time.

Claims

1. A vertical underground garage with a crawler-type circulating elevator system, characterized in that The vertical underground garage includes a segment shaft, floor plates, and a crawler-type circulating elevator system. The segment shaft is composed of caisson segments. The crawler-type circulating elevator system is centrally located at the center of the segment shaft. The floor plates are sequentially arranged from top to bottom to vertically divide the segment shaft into several parking floors. The crawler-type circulating elevator system includes two sets of sprockets, crawler chains, guide mechanisms, and several open cars. The two sets of sprockets are respectively arranged at the top and bottom of the segment shaft. The crawler chains are matched and fitted on the two sprockets and driven by the sprockets to rotate in a circular manner. The open cars are fixed to the crawler chains at intervals. The open cars include a vertical base plate and several load-bearing rods horizontally welded to the bottom of the front of the vertical base plate, and the load-bearing rods are spaced apart. The guide mechanism is arranged on the back of the vertical base plate and guides the open cars to keep them in a vertical state at all times. A parking floor entrance and a parking floor exit are respectively provided on the ground of each parking floor, the parking floor entrance is arranged correspondingly on the side where the crawler chain drives downward, and the parking floor exit is arranged correspondingly on the side where the crawler chain drives upward; the parking floor entrance and the parking floor exit are both provided with a translational extraction vehicle platform, the translational extraction vehicle platform includes a grid platform and slide rails arranged on both sides of the grid platform, the grid platform includes a cross bar at the rear end and a plurality of longitudinal bars vertically welded to the cross bar, the longitudinal bars are spaced apart and the gaps between the longitudinal bars are greater than the diameter of the load-bearing bars; The top floor of the segment shaft is provided with a garage entrance and a garage exit, and both the garage entrance and the garage exit are provided with the translational extraction vehicle platform; A plurality of movable rollers are provided on both sides of the grid platform, and the rollers are driven by motors and move on the slide rails on both sides; The garage entrance is provided with a vehicle transport chassis, and the lower bottom surface of the vehicle transport chassis is provided with two sets of front and rear running wheels, and the lateral length of the running wheels is greater than the lateral distance between at least two of the load-bearing rods; When the vehicle stops on the vehicle transfer chassis at the entrance of the garage, the vehicle transfer chassis automatically moves to the translational extraction vehicle platform, and the translational extraction vehicle platform translates outward from the ground to the movement path of the open car. Without stopping the operation of the crawler-type circulating elevator system, the open car on the crawler chain in the rising state passes through the gap of the translational extraction vehicle platform and lifts the vehicle transfer chassis off the translational extraction vehicle platform to sit on the open car. Then, the translational extraction vehicle platform is controlled to retract to the ground. According to the parking floor where the vehicle needs to stop, when the open car is in a descending state and approaches the parking floor to be stopped, the movable extraction vehicle platform of the parking floor is controlled to move from the inside to the outside to the movement path of the open car. Without stopping the operation of the crawler-type circular elevator system, the open car in a descending state passes downward through the gap of the movable extraction vehicle platform and leaves the vehicle transfer chassis and the vehicle thereon on the movable extraction vehicle platform. Then, the movable extraction vehicle platform is controlled to retract inward to the ground of the parking floor.

2. A vertical underground garage with a crawler-type circulating elevator system according to claim 1, characterized in that The crawler chain consists of inner links and outer links that are arranged in sequence and staggered. The inner links include two parallel inner link plates and two groups of roller assemblies arranged between the two inner link plates. The roller assembly consists of a sleeve and a roller sleeved outside the sleeve; the outer links include two parallel outer link plates and two groups of pins arranged between the two outer link plates. The outer links are arranged between two adjacent inner links, and the two pins in the outer links are respectively inserted into the sleeves of the two adjacent inner links.

3. A vertical underground garage with a crawler-type circulating elevator system according to claim 2, characterized in that One of the pins in the outer chain links protrudes from the outer link plate, and the pin and the outer link plate can rotate relative to each other. The back side of the vertical base plate in the open car is fixedly connected to the end of the pin, and the other end of the pin also protrudes from the outer link plate and is fixedly connected to the guide mechanism.

4. A vertical underground garage with a crawler-type circulating elevator system according to claim 3, characterized in that The guide mechanism includes a cross guide frame and a guide base plate, the center of the cross guide frame is fixedly connected to the end of the pin shaft, and the four ends of the cross guide frame are respectively fixedly provided with guide columns, and two groups of guide grooves are provided on the vertically arranged guide base plate, one group of guide grooves is used to guide the ascent of the open car, and the other group of guide grooves is used to guide the descent of the open car. The guide grooves include a centrally arranged vertical center groove and two vertical side grooves arranged on both sides of the vertical center groove, the vertical center groove is used to guide the guide columns at the vertical ends of the cross guide frame, and the vertical side grooves are used to guide the guide columns at the horizontal ends of the cross guide frame; wherein, the top of the vertical side grooves located on the outside of each group of guide grooves also has an arc-shaped guide groove to adapt to the turning of the open car at the sprocket.

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