Traction component pedal chain for heavy-load moving walkways at airports

Abstract

The present invention relates to the technical field of transmission chains, and in particular to a pedal chain of traction components for heavy-loaded automatic walkways at airports. On the one hand, in this solution, auxiliary balls are symmetrically and movably arranged on both sides of the limit ring, that is, during the operation of the pedal chain, the friction loss between the end limit nut and the outer chain plate, the outer chain plate and the inner chain plate, and the inner chain plate and the limit sleeve can be reduced, so as to avoid operation jams as much as possible, making the operation of the pedal chain smoother and more stable. On the other hand, the limit ring and the limit sleeve can also be used in combination, that is, when adding lubricating oil to the pedal chain or in the later lubrication and maintenance process, lubricating oil can be added from the oil guide hole on the side wall of the limit sleeve. In the part where the pedal chain is connected to the support shaft assembly, this solution improves its connection stability and reduces installation and maintenance work by setting a regulating and stabilizing assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of transmission chains, in particular to a traction component pedal chain for heavy-load moving walkways used in airports. Background Art

[0002] The existing document with announcement number CN206530646U discloses a moving walkway pedal chain, which includes inner links, outer links, connecting links, outer chain plates, retaining rings, rollers, and pins. Through holes are opened on both sides of the inner links, outer links, connecting links, and outer chain plates. The through holes on both sides of the inner links and the outer links are placed on the pins in sequence. The through holes on both sides of the outer chain plates are placed on the pins and fit together with the inner links and the outer links. Through holes are opened on both sides of the connecting links. The through holes of the connecting links are placed on the pins. The through holes on both sides of the outer chain plates are placed on the pins and fit together with the connecting links. The retaining rings are clamped in the clamping grooves of the pins.

[0003] The pedal chain used to drive the pedal in the above-mentioned scheme and the prior art generally consists of an inner chain plate, an outer chain plate, a limiting sleeve, a pin shaft and a limiting retaining ring. During operation, on the one hand, the limiting retaining ring is in contact with the inner chain plate and the outer chain plate. After long-term operation, friction damage is inevitable, which may cause the connection between the inner chain plate and the outer chain plate to loosen, which has a negative impact on its operating stability; on the other hand, during lubrication and maintenance, it is difficult for the lubricating oil to penetrate into the contact surface of the limiting sleeve, the limiting retaining ring, the inner chain plate, the outer chain plate and the pin shaft. The lubrication effect of simply applying lubricating oil to the outside of the chain is difficult to meet the lubrication requirements; furthermore, the pedal chain is generally connected to the support shaft assembly, that is, a support shaft assembly is provided between the symmetrically running pedal chains, and the stability of the connection between the support shaft assembly and the pedal chain will also have a certain impact on the operation of the pedal chain.

[0004] To this end, the present invention proposes a traction member pedal chain for heavy-load moving walkways for airports to solve the above problems. Summary of the Invention

[0005] The object of the present invention is to provide a traction member pedal chain for heavy-load moving walkways for airports, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a traction member pedal chain for a heavy-duty passenger conveyor for an airport, comprising an inner chain plate, an outer chain plate, a limit retaining ring, a limit sleeve, a limit pin, an end limit nut, and a support shaft assembly; one end of each of the inner and outer chain plates is sleeved on the limit pin, and a limit sleeve is sleeved on the middle portion of the limit pin, both ends of the limit pin are provided with connecting threads, and the end of the limit pin is threadedly connected to the end limit nut;

[0007] The limiting retaining ring is connected to the first auxiliary component, the limiting sleeve is connected to the second auxiliary component, and the support shaft component includes a connecting shaft head body, a connecting shaft and a regulating and stabilizing component.

[0008] Preferably, the first auxiliary component includes an auxiliary ball, a docking socket and a first oil guide groove; the auxiliary ball is movably embedded on both sides of the limit ring, the docking socket is set through the limit ring, and the first oil guide groove is set on the inner side of the limit ring.

[0009] Preferably, the auxiliary balls are arranged in a ring-like shape at equal distances on both sides of the limiting retaining ring.

[0010] Preferably, the docking jacks are also equidistantly arranged in a ring shape in the limit ring, and the docking jacks and the first oil guide grooves are arranged in corresponding positions and the same number of groups, and the docking jacks and the first oil guide grooves are connected.

[0011] Preferably, the second auxiliary component includes an oil guide hole, a second oil guide groove, an oil receiving protrusion and a docking pipe head; the oil guide hole is arranged in the middle position of the side wall of the limiting sleeve, and the oil guide hole is arranged through, one end of the oil guide hole is arranged on the outer side wall of the limiting sleeve, and the other end extends to the inner side of the limiting sleeve, and the oil guide holes are arranged in an equidistant ring shape.

[0012] Preferably, the second oil guiding groove is provided in the limiting sleeve, and the second oil guiding groove is symmetrically arranged with respect to the oil guiding through hole.

[0013] Preferably, one end of the second oil guide groove is connected to the oil guide through hole, and the other end of the second oil guide groove extends to the end surface of the limiting sleeve. The second oil guide groove is fixedly provided with an oil receiving protrusion at the slot position connected to the oil guide through hole, and the oil receiving protrusion is configured as an arc-shaped plate.

[0014] Preferably, a docking spigot head is fixedly provided at the notch of the second oil guide groove connected to the end face of the limiting sleeve. The docking spigot head corresponds to the setting position of the docking socket in the limiting retaining ring, the setting number of groups is the same, and the length of the docking spigot head is less than the hole depth of the docking socket.

[0015] Preferably, the connecting shaft head body is arranged at one end of the connecting shaft, and the end face of the other end of the connecting shaft is equidistantly provided with a first positioning groove, and the first positioning groove is equidistantly arranged in a ring shape, and a regulating thread groove cavity is provided at the center position of the end face of the other end of the connecting shaft.

[0016] Preferably, the regulating and stabilizing component includes an intermediate supporting shaft, a second positioning slot, a regulating threaded shaft and a stabilizing structure; the end faces of both ends of the intermediate supporting shaft are symmetrically provided with second positioning slots, and the second positioning slots are equidistantly arranged in a ring shape on the end face of the intermediate supporting shaft, and a regulating threaded shaft is provided at the center position of the end face of the intermediate supporting shaft, and the regulating threaded shaft is threadedly connected to the regulating thread groove cavity at the end of the connecting shaft.

[0017] Preferably, the stabilizing structure includes a stabilizing top plate, a fitting arc surface, a positioning block, a connecting thread column, an internal thread regulating cylinder and a rotation-assisting convex strip; the two ends of the internal thread regulating cylinder are symmetrically adapted to be threadedly connected and provided with a connecting thread column, and the outer side wall of the internal thread regulating cylinder is fixedly provided with a rotation-assisting convex strip, and the connecting thread column is fixedly provided on one side of the stabilizing top plate.

[0018] Preferably, a positioning block is fixedly provided on the other side of the stable top plate, the positioning block is adapted to be engaged with the second positioning slot, and the positioning block is also adapted to be engaged with the first positioning slot, the stable top plate and the connecting threaded column are provided with the same number of groups, and the stable top plate is provided as an arc-shaped plate, and a fitting arc-shaped surface is provided on the inner side of the stable top plate, and the fitting arc-shaped surface is adapted to be engaged with the side wall of the connecting threaded column.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The traction component pedal chain for the heavy-duty automatic walkway for airports designed in this scheme includes an inner chain plate, an outer chain plate, a limit ring, a limit sleeve, a limit pin, an end limit nut and a support shaft assembly; one end of the inner chain plate and the outer chain plate are both sleeved on the limit pin, and a limit sleeve is sleeved on the middle position of the limit pin, and connecting threads are provided on both end sides of the limit pin, and the end thread connection of the limit pin is provided with an end limit nut; the limit ring is connected to the first auxiliary assembly, the limit sleeve is connected to the second auxiliary assembly, and the support shaft assembly includes a connecting shaft head body, a connecting shaft and a regulating and stabilizing assembly; the limit ring provided in this scheme, that is, between the end limit nut and the outer chain plate, between the outer chain plate and the inner chain plate, and the inner A limiting retaining ring is provided between the side chain plate and the limiting sleeve. On the one hand, auxiliary balls are symmetrically arranged on both sides of the limiting retaining ring, that is, during the operation of the pedal chain, the friction loss between the end limiting nut and the outer chain plate, the outer chain plate and the inner chain plate, and the inner chain plate and the limiting sleeve can be reduced, and the operation jam can be avoided as much as possible, making the pedal chain run more smoothly and stably. On the other hand, the limiting retaining ring and the limiting sleeve can also be used in combination, that is, when adding lubricating oil to the pedal chain or in the later lubrication and maintenance process, lubricating oil can be added from the oil guide hole on the side wall of the limiting sleeve. In the part where the pedal chain is connected to the support shaft assembly, this solution improves its connection stability and reduces installation and maintenance work by setting up a regulating and stabilizing component. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic plan view of the connection structure between the pedal chain and the support shaft assembly of the present invention;

[0022] Figure 2 This is a schematic diagram of the front side of the explosion connection of the pedal chain structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the pedal chain structure of the present invention connected to the rear side of the explosion;

[0024] Figure 4 This is a schematic diagram of the front side of the limit retaining ring structure of the present invention;

[0025] Figure 5 This is a bottom view of the connection of the limit retaining ring structure of the present invention;

[0026] Figure 6 This is a schematic diagram of the connection of the limiting sleeve structure of the present invention;

[0027] Figure 7 This is a partial cross-sectional view of the internal structure of the limiting sleeve of the present invention;

[0028] Figure 8 for Figure 7 A magnified schematic diagram of the structural connection at center A;

[0029] Figure 9 It is an exploded schematic diagram of the connection between the connecting shaft member and the regulating and stabilizing component structure in the support shaft assembly of the present invention;

[0030] Figure 10 for Figure 9 A magnified schematic diagram of the structural connection at point B in the middle;

[0031] Figure 11 for Figure 9 A magnified schematic diagram of the structural connection at point C in the middle;

[0032] Figure 12 This is a schematic diagram of the explosion of the stable structure connection of the present invention.

[0033] In the figure: inner chain plate 1, outer chain plate 2, limit ring 3, auxiliary ball 301, docking socket 302, first oil guide groove 303, limit sleeve 4, oil guide through hole 401, second oil guide groove 402, oil receiving protrusion 403, docking pipe head 404, limit pin 5, end limit nut 6, connecting shaft head body 701, connecting shaft 702, first positioning slot 7021, regulating thread groove cavity 7022, intermediate supporting shaft body 801, second positioning slot 802, regulating thread shaft body 803, stabilizing top plate 8041, fitting arc surface 8042, positioning block 8043, connecting thread column 8044, internal thread regulating cylinder 8045, and rotation auxiliary protrusion 8046. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention are described clearly and completely below. The embodiments of the present invention and all other embodiments obtained by persons of ordinary skill in the art without creative work are within the scope of protection of the present invention.

[0035] Example 1: Please refer to Figures 1-12 The traction component pedal chain for heavy-duty automatic walkways at airports includes an inner chain plate 1, an outer chain plate 2, a limit ring 3, a limit sleeve 4, a limit pin 5, an end limit nut 6 and a support shaft assembly; one end of the inner chain plate 1 and the outer chain plate 2 are both sleeved on the limit pin 5, and the middle position of the limit pin 5 is sleeved with a limit sleeve 4, and both end sides of the limit pin 5 are provided with connecting threads, and the end of the limit pin 5 is threadedly connected with an end limit nut 6; the limit ring 3 is connected to the first auxiliary assembly, and the limit sleeve 4 is connected to the second auxiliary assembly, and the support shaft assembly includes a connecting shaft head body 701, a connecting shaft 702 and a regulation and stabilization assembly.

[0036] In this solution, for the installation and use of the pedal chain, at the position connected to the support shaft assembly, first put a limit ring 3 on the connecting shaft head body 701, and then put one end of an outer chain plate 2 on the connecting shaft head body 701, and one side of the outer chain plate 2 is tightly attached to the limit ring 3 that has been sleeved, and then put on a limit ring 3, and then put on an inner chain plate 1, and then put on a limit ring 3, and then put on a limit sleeve 4. In the process of sleeve-installing the limit sleeve 4, it is necessary to align the docking plug head 404 at the end of the limit sleeve 4 with the docking plug head on the limit ring 3 that has been sleeved. The hole 302 is plugged in. During this process, after the docking spigot head 404 is inserted into the docking spigot 302, the docking spigot head 404 will not block the notch of the first oil guide groove 303 in the docking spigot 302. After the limiting sleeve 4 is installed, a limiting retaining ring 3 is installed immediately, and the docking spigot 302 on the limiting retaining ring 3 must also be plugged in with the docking spigot head 404 at the end of the limiting sleeve 4. Then, an inner chain plate 1 and an outer chain plate 2 are installed in sequence, and finally the end limiting nut 6 is installed through a threaded connection. This procedure can complete the connection and installation of the chain and the support shaft assembly.

[0037] The first auxiliary component includes an auxiliary ball 301, a docking socket 302 and a first oil guide groove 303; the auxiliary ball 301 is movably embedded in both sides of the limit retaining ring 3, the docking socket 302 is penetrated in the limit retaining ring 3, and the first oil guide groove 303 is provided on the inner side of the limit retaining ring 3; the auxiliary ball 301 is equidistantly arranged in a ring shape on both sides of the limit retaining ring 3; the docking socket 302 is also equidistantly arranged in a ring shape in the limit retaining ring 3, and the docking socket 302 and the first oil guide groove 303 are arranged in corresponding positions and the same number of groups, and the docking socket 302 and the first oil guide groove 303 are connected; the second auxiliary component includes an oil guide hole 401, a second oil guide groove 402, an oil receiving protrusion 403 and a docking plug head 404; the oil guide hole 401 is arranged in the middle position of the side wall of the limit sleeve 4, and the oil guide hole 401 is penetrated, and the oil guide hole 401 One end is arranged on the outer wall of the limiting sleeve 4, and the other end extends to the inner side of the limiting sleeve 4, and the oil guide hole 401 is arranged in an equidistant annular shape; the second oil guide groove 402 is arranged in the limiting sleeve 4, and the second oil guide groove 402 is symmetrically arranged about the oil guide hole 401; one end of the second oil guide groove 402 is connected to the oil guide hole 401, and the other end of the second oil guide groove 402 extends to the end face of the limiting sleeve 4, and the second oil guide groove An oil receiving protrusion 403 is fixedly provided at the slot position of 402 connected to the oil guide hole 401, and the oil receiving protrusion 403 is set as an arc-shaped plate; the second oil guide groove 402 is fixedly provided with a docking spigot head 404 at the slot connected to the end face of the limiting sleeve 4, and the docking spigot head 404 corresponds to the docking socket 302 in the limiting retaining ring 3 in the setting position, the same number of settings, and the length of the docking spigot head 404 is less than the hole depth of the docking socket 302.

[0038] As for the position where the chain is not connected to the support shaft assembly, this position needs to be supported by the set limit pin 5, that is, a limit sleeve 4 is sleeved on the middle position of the limit pin 5, and then the limit rings 3 are symmetrically sleeved and installed at both ends of the limit sleeve 4, and the docking sockets 302 on the limit rings 3 at both ends of the limit sleeve 4 need to be plugged into the docking socket heads 404 at the ends of the limit sleeve 4, and then the inner chain plate 1, the limit ring 3, the outer chain plate 2 and the limit ring 3 are sleeved and installed in turn, and finally the end limit nuts 6 are threadedly installed at both ends of the limit pin 5, and the chain installation at this position can be completed.

[0039] The limit retaining ring 3 set in this scheme, that is, the limit retaining ring 3 is set between the end limit nut 6 and the outer chain plate 2, between the outer chain plate 2 and the inner chain plate 1, and between the inner chain plate 1 and the limit sleeve 4. On the one hand, auxiliary balls 301 are symmetrically arranged on both sides of the limit retaining ring 3, that is, during the operation of the pedal chain, the friction loss between the end limit nut 6 and the outer chain plate 2, the outer chain plate 2 and the inner chain plate 1, and the inner chain plate 1 and the limit sleeve 4 can be reduced, and the operation jam can be avoided as much as possible, making the pedal chain run more smoothly. On the other hand, the limiting retaining ring 3 and the limiting sleeve 4 can also be used in conjunction with each other, that is, when adding lubricating oil to the pedal chain or in the later lubrication maintenance process, lubricating oil can be added from the oil guide hole 401 on the side wall of the limiting sleeve 4. On the one hand, the added lubricating oil can reach the limiting pin 5 or the surface of the connecting shaft head body 701 of the support shaft assembly from the oil guide hole 401, and on the other hand, a part of the lubricating oil will enter the second oil guide groove 402 in the limiting sleeve 4 from the position of the oil receiving convex body 403, and then Then it flows out from the second oil guide groove 402 from the docking plug head 404, that is, enters the docking socket 302 adjacent to the limiting sleeve 4. A part of the lubricating oil entering the docking socket 302 will flow out from the other end hole of the docking socket 302, that is, contact with the inner chain plate 1, further reducing the friction damage caused by the inner chain plate 1 during operation. Another part of the lubricating oil enters the first oil guide groove 303 in the limiting retaining ring 3, and reaches the bottom of the first oil guide groove 303 to contact the limiting pin shaft 5 or the connecting shaft head body 701. As the pedal chain runs, the lubricating oil will penetrate into the adjacent limit ring 3, inner chain plate 1 and outer chain plate 2, thereby reducing the running friction between the limit ring 3, inner chain plate 1 and outer chain plate 2 and the limit pin 5, and further improving the running stability of the pedal chain; the lubricating oil flowing out from the docking socket 302 on the limit ring 3 can also have a lubricating effect on the auxiliary ball 301 on the limit ring 3, thereby ensuring the mobility of the auxiliary ball 301 and avoiding the problem of the auxiliary ball 301 being stuck during long-term use.

[0040] In the part where the pedal chain is connected to the support shaft assembly, in order to better improve its connection stability and reduce installation and maintenance work, this solution is equidistantly provided with first positioning slots 7021 on the end face of the other end of the connecting shaft 702, and the first positioning slots 7021 are equidistantly arranged in a ring shape, and a regulating threaded groove cavity 7022 is provided at the center position of the end face of the other end of the connecting shaft 702; the connecting shaft head body 701 is provided at one end of the connecting shaft 702, and the regulating and stabilizing assembly here includes an intermediate supporting shaft body 801, a second positioning slot 802, a regulating threaded shaft body 803 and a stabilizing structure; the end faces at both ends of the intermediate supporting shaft body 801 are symmetrically provided with second positioning slots 802, and the second positioning slots 802 are equidistantly arranged in a ring shape on the end face of the intermediate supporting shaft body 801, and a regulating threaded shaft body 803 is provided at the center position of the end face of the intermediate supporting shaft body 801, and the regulating threaded shaft body 803 is threadedly matched with the regulating threaded groove cavity 7022 at the end of the connecting shaft body 702. The purpose of this process is that when the pedal chain is connected to the support shaft assembly, after the outer chain plate 2, the limit ring 3, the inner chain plate 1 and the limit sleeve 4 are installed, the end limit nut 6 is threadedly connected to the end of the connecting shaft head body 701 through the provided end limit nut 6. 3. The tightness of the sleeve between the inner chain plate 1 and the limiting sleeve 4. After the end limiting nut 6 is threadedly installed, the intermediate receiving shaft 801 can be rotated, and the intermediate receiving shaft 801 drives the regulating thread shaft 803 and the regulating thread groove cavity 7022 at the end of the connecting shaft 702 to rotate, that is, the connecting shaft 702 can be pushed outward to push from the inside of the chain to improve the connection stability between the outer chain plate 2, the limiting ring 3, the inner chain plate 1 and the limiting sleeve 4.

[0041] Among them, for the coordinated regulation work of the intermediate receiving shaft 801 and the connecting shaft 702, in order to further improve the stability after regulation, this solution is achieved by setting a stable structure, that is, the stable structure includes a stable top plate 8041, a fitting arc surface 8042, a positioning block 8043, a connecting thread column 8044, an internal thread regulating cylinder 8045 and a rotation auxiliary ridge 8046; the two ends of the internal thread regulating cylinder 8045 are symmetrically adapted to be threadedly connected and provided with a connecting thread column 8044, and the outer wall of the internal thread regulating cylinder 8045 is fixedly provided with a rotation auxiliary ridge. The convex strip 8046 and the connecting thread column 8044 are fixedly provided on one side of the stable top plate 8041; the other side of the stable top plate 8041 is fixedly provided with a positioning block 8043, the positioning block 8043 is adapted to be engaged with the second positioning slot 802, and the positioning block 8043 is also adapted to be engaged with the first positioning slot 7021, the stable top plate 8041 and the connecting thread column 8044 are provided with the same number of groups, and the stable top plate 8041 is provided as an arc-shaped plate, and the inner side of the stable top plate 8041 is provided with a fitting arc surface 8042, and the fitting arc surface 8042 is engaged with the connecting thread column 8044. 044, the side wall of the middle receiving shaft 801 and the connecting shaft 702 are adjusted, and then the stabilizing top plate 8041 is placed, and the inner side of the stabilizing top plate 8041 is fitted with the arc surface 8042 tightly against the side wall of the adjusting threaded shaft 803, and then the internal threaded adjusting cylinder 8045 is rotated by fingers. In the process of rotating the internal threaded adjusting cylinder 8045, under the action of the threaded connection rotation of the connecting thread column 8044 and the internal threaded adjusting cylinder 8045, the stabilizing top plate 8041 is pushed to both sides until one of the stabilizing top plates 8041 is aligned with the connecting thread column 8044. The end face of the shaft 702 is tightly attached, and the other stable top plate 8041 is tightly attached to the end face of the intermediate supporting shaft body 801, and the positioning block 8043 on the side wall of one of the stable top plates 8041 is clamped with the first positioning groove 7021 at the end of the connecting shaft 702, and the positioning block 8043 on the side wall of the other stable top plate 8041 is clamped with the second positioning groove 802 on the end face of the intermediate supporting shaft body 801, and finally the internal thread regulating cylinder 8045 is tightened, and the regulation and stabilization of the intermediate supporting shaft body 801 and the connecting shaft 702 are completed.

[0042] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A traction component pedal chain for a heavy-duty automatic walkway for an airport, comprising an inner chain plate (1), an outer chain plate (2), a limit ring (3), a limit sleeve (4), a limit pin (5), an end limit nut (6) and a support shaft assembly; one end of each of the inner chain plate (1) and the outer chain plate (2) is sleeved on the limit pin (5), and a limit sleeve (4) is sleeved on the middle position of the limit pin (5); both ends of the limit pin (5) are provided with connecting threads, and the end of the limit pin (5) is provided with an end limit nut (6) in threaded connection; Its characteristics are: The limiting retaining ring (3) is connected to the first auxiliary component, the limiting sleeve (4) is connected to the second auxiliary component, and the support shaft component includes a connecting shaft head body (701), a connecting shaft member (702) and a regulating and stabilizing component; The first auxiliary component comprises an auxiliary ball (301), a docking socket (302) and a first oil guide groove (303); the auxiliary ball (301) is movably embedded on both sides of the limit retaining ring (3), the docking socket (302) is penetrated in the limit retaining ring (3), and the first oil guide groove (303) is provided on the inner side of the limit retaining ring (3); The second auxiliary component comprises an oil guide hole (401), a second oil guide groove (402), an oil receiving protrusion (403) and a docking plug head (404); the oil guide hole (401) is arranged in the middle of the side wall of the limiting sleeve (4), and the oil guide hole (401) is arranged to penetrate, one end of the oil guide hole (401) is arranged on the outer wall of the limiting sleeve (4), and the other end extends to the inner side of the limiting sleeve (4), and the oil guide hole (401) is arranged in an equidistant annular shape; The docking plug head (404) and the docking plug hole (302) in the limit retaining ring (3) are arranged in corresponding positions and have the same number of groups.

2. The traction member pedal chain for heavy-load moving walkways at airports according to claim 1, characterized in that: The auxiliary balls (301) are arranged in a ring-like shape at equal distances on both sides of the limiting retaining ring (3).

3. The traction member pedal chain for heavy-load moving walkways at airports according to claim 1, characterized in that: The docking jacks (302) are also arranged in an annular shape at equal intervals in the limit ring (3), and the docking jacks (302) and the first oil guide grooves (303) are arranged in corresponding positions and have the same number of groups, and the docking jacks (302) and the first oil guide grooves (303) are connected.

4. The traction member pedal chain for heavy-load moving walkways at airports according to claim 1, characterized in that: The second oil guide groove (402) is arranged in the limiting sleeve (4), and the second oil guide groove (402) is symmetrically arranged with respect to the oil guide through hole (401).

5. The traction member pedal chain for heavy-load moving walkways at airports according to claim 1, characterized in that: One end of the second oil guide groove (402) is connected to the oil guide through hole (401), and the other end of the second oil guide groove (402) extends to the end surface of the limiting sleeve (4). The second oil guide groove (402) is fixedly provided with an oil receiving protrusion (403) at the slot position connected to the oil guide through hole (401), and the oil receiving protrusion (403) is configured as an arc-shaped plate.

6. The traction member pedal chain for heavy-load moving walkways at airports according to claim 1, characterized in that: A docking pipe head (404) is fixedly provided at a notch of the second oil guide groove (402) that is in communication with the end face of the limiting sleeve (4); the length of the docking pipe head (404) is less than the hole depth of the docking socket (302).

7. The traction member pedal chain for heavy-load moving walkways at airports according to claim 1, characterized in that: The connecting shaft head body (701) is arranged at one end of the connecting shaft member (702), and the end surface of the other end of the connecting shaft member (702) is equidistantly provided with first positioning slots (7021), and the first positioning slots (7021) are equidistantly arranged in a ring shape, and a regulating thread groove cavity (7022) is provided at the center position of the end surface of the other end of the connecting shaft member (702).

8. The traction member pedal chain for heavy-load moving walkways at airports according to claim 1, characterized in that: The regulating and stabilizing component comprises an intermediate receiving shaft (801), a second positioning slot (802), a regulating threaded shaft (803) and a stabilizing structure; the end faces of both ends of the intermediate receiving shaft (801) are symmetrically provided with second positioning slots (802), the second positioning slots (802) are equidistantly arranged in a ring shape on the end face of the intermediate receiving shaft (801), and a regulating threaded shaft (803) is provided at the center position of the end face of the intermediate receiving shaft (801), and the regulating threaded shaft (803) is threadedly connected to the regulating threaded groove cavity (7022) at the end of the connecting shaft (702).

9. The traction member pedal chain for heavy-load moving walkways at airports according to claim 8, characterized in that: The stabilizing structure comprises a stabilizing top plate (8041), a fitting arcuate surface (8042), a positioning block (8043), a connecting threaded column (8044), an internally threaded regulating cylinder (8045), and a rotation-assisting convex strip (8046); the connecting threaded column (8044) is symmetrically arranged at both ends of the internally threaded regulating cylinder (8045) in threaded connection, and the rotation-assisting convex strip (8046) is fixedly arranged on the outer side wall of the internally threaded regulating cylinder (8045); the connecting threaded column (8044) is fixedly arranged on one side of the stabilizing top plate (8041).

10. The traction member pedal chain for heavy-load moving walkways at airports according to claim 9, characterized in that: A positioning block (8043) is fixedly provided on the other side of the stable top plate (8041), and the positioning block (8043) is adapted and snap-fitted with the second positioning slot (802), and the positioning block (8043) is also adapted and snap-fitted with the first positioning slot (7021). The stable top plate (8041) and the connecting threaded column (8044) are provided with the same number of groups, and the stable top plate (8041) is provided as an arc-shaped plate. The inner side of the stable top plate (8041) is provided with a fitting arc-shaped surface (8042), and the fitting arc-shaped surface (8042) is adapted and snap-fitted with the side wall of the connecting threaded column (8044).

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