Cab foot plate device for inner windshield

Abstract

The invention belongs to the technical field of rail transit equipment, and particularly relates to a gangway foot plate device for an inner windshield, the main structure of the gangway foot plate device comprises a plurality of upper sliding plates, lower sliding plates and a frame, the upper sliding plates and the lower sliding plates are connected into a linkage assembly through connecting rod assemblies, and the upper sliding plates and the lower sliding plates are arranged side by side at intervals in a staggered mode. Frames are arranged on the outer sides of the lower sliding plates on the two sides respectively, the upper sliding plates and the lower sliding plates are alternately arranged and assembled, the two ends of the upper sliding plates and the lower sliding plates are not connected and are of an open type, non-uniform stretching or compression dislocation changes can be achieved, the cab apron is more convenient to mount and dismount through the modular integrated design, the time of vehicle final assembly mounting operation is shortened, and the assembly efficiency is improved. The end wall of the vehicle body is free from an inward concave design, so that the vehicle end is more attractive, the curve passing performance of the vehicle under the composite working condition is ensured, and accessories such as a plate spring, a cab apron support and a guide device are not needed; the structure is simple, the failure rate of the inner windshield is reduced, and the assembly efficiency and the maintenance efficiency of the inner windshield are improved.

Description

Technical field:

[0001] The present invention belongs to the technical field of rail transit equipment, and specifically relates to a ferry device for an inner windshield. The modular integrated design makes the installation and disassembly of the ferry device more convenient, thereby reducing the installation operation time of the vehicle. Background technology:

[0002] The gangway assembly is a crucial component of the inner windshield, a common rail vehicle component. Located at the base of the inner windshield, it supports the load at the aisle and provides convenient passage for passengers. During vehicle operation, the gangway assembly must meet the motion requirements of the vehicle under the combined conditions of pitch, turning, and rolling when navigating curves. Furthermore, it must ensure that there are no gaps in the inner windshield aisle that would impede passenger passage, and that there is no interference or collision between the gangway assembly and components such as the inner windshield bellows. The prior art has disclosed ferry devices of various structures. For example, Chinese Patent 202011635978.7 discloses a rib-type through-channel ferry device, the main structure of which includes a ferry outer frame component and a ferry body component; the ferry outer frame component is provided with a ferry body component, and the main structure of the ferry outer frame component includes a fixing frame, a lap protection beam, an outer aluminum splicing beam, an outer nylon splicing beam, fasteners and a ferry lock shaft fixing block; two mutually parallel fixing frames and two mutually parallel lap protection beams are connected end to end to form a frame structure, and an outer aluminum splicing beam and an outer nylon splicing beam are provided on the inner side of the lap protection beam between the fixing frames, and the fixing frame and the lap protection beam, the outer aluminum splicing beam and the outer nylon splicing beam are all connected by fasteners, and a ferry lock shaft fixing block is provided on the fixing frame. The main structure includes side frame beams, inner nylon splicing beams, inner aluminum splicing beams, locking mechanisms, locking shafts, rotating handles and locking compression springs; a number of inner nylon splicing beams are arranged between two parallel side frame beams, and inner aluminum splicing beams are arranged between the side frame beams and the inner nylon splicing beams and between the inner nylon splicing beams and the inner nylon splicing beams; locking mechanisms are arranged at the ends of the side frame beams, and locking shafts are arranged in the locking mechanism; the locking mechanism is connected to the rotating handle, and a locking compression spring is also arranged in the locking mechanism; two non-contact wear-resistant plates are arranged on the surfaces of the inner aluminum splicing beams in odd or even rows; the outer frame assembly of the ferry plate is connected to the ferry plate body assembly through the locking shaft arranged in the locking mechanism; the interior of the outer frame assembly of the ferry plate is provided with a ferry plate mounting shaft; the outer aluminum splicing beams and the inner aluminum splicing beams are both bonded with anti-slip sand stickers. It uses leaf springs, brackets and other auxiliary devices to support and adjust the various movements of the ferry. The installation of the auxiliary device requires an inward concave design at the vehicle end to arrange the auxiliary device.There is also a ferry device with a single rigid plate body. For example, Chinese patent 201810882735.X discloses a new ferry device for a through-channel. The main structure includes a ferry, a wear part, a mounting groove, a tension spring connecting rod, a locking tension spring, a groove-shaped lock, a limit pull rod, a pull rope, a through hole, a nylon sleeve, an observation port and an observation port cover; the two parallel horizontal sides of the bottom of the ferry with a plate structure are respectively provided with a wear part of a strip structure, and a mounting groove of a U-shaped groove structure is provided on the central longitudinal axis of the bottom of the ferry. The ferry and The mounting groove is bolted, and a tension spring connecting rod with a cylindrical structure and rings at both ends is provided in the center of the mounting groove. The two ends of the tension spring connecting rod are respectively connected to one end of the locking tension spring of the spiral structure, and the other end of the locking tension spring is connected to one end of the groove-shaped lock. The other end of the groove-shaped lock is connected to one end of the limiting pull rod of the plate structure, and the other end of the limiting pull rod is connected to the pull rope of the ring structure. An elliptical through hole is provided on the limiting pull rod near the end of the pull rope, and a nylon sleeve with a ring structure is provided in the through hole. The limiting pull rod is passed through It is connected to the mounting groove by bolts through a nylon sleeve. Observation ports with rounded rectangular structures are opened at both ends of the central longitudinal axis of the ferry board. An observation port cover with rounded rectangular structures is set on the observation port. The positions of the observation port and the observation port cover correspond to the positions of the slot lock. The ferry board, mounting groove, tension spring connecting rod, limit pull rod and observation port cover are all made of stainless steel; the wear part is overlapped on the pedal of the through-passage; the locking tension spring is a stainless steel tension spring; the slot lock is made of stainless steel; the structure of the pull rope is a stainless steel wire rope wrapped with PU tube The material of the nylon sleeve is nylon. The perimeter of the through hole is larger than the perimeter of the nylon sleeve. The observation port is used to observe whether the slot lock is locked in place. When locked, pull the two pull ropes. Due to the limiting effect of the nylon sleeve, the limiting pull rod will not be pulled off. When the center pin on the ferry connecting rod is inserted into the ferry mounting hole, release the pull rope. The tension of the locking spring will firmly embed the center pin into the ferry mounting hole. Open the observation port cover. Through the observation port, you can directly observe whether the slot lock is locked in place. When the vehicle is running, close the observation port cover. It adopts a single-piece structure and cannot be stretched or changed. When passing through harsh curved working conditions, the overall lateral swing range is large. The movement space between the ferry and other parts of the inner windshield is large enough to avoid interference. It has relatively poor adaptability and a narrow scope of application. The above two ferry in the prior art cannot meet the requirements of the new EMU vehicle end without concave design, rigid hinged connection between the ferry and the corresponding matching parts at the vehicle end, and self-shifting adjustment function inside the ferry. Therefore, in combination with the vehicle movement and structural design requirements, a new type of ferry device was developed and designed, which can automatically adjust internally and does not require auxiliary adjustment devices such as leaf springs, so as to meet the design requirements of new EMU vehicles. Summary of the invention:

[0003] The purpose of the present invention is to overcome the shortcomings of the existing technology and to develop and design a ferry device for an inner windshield, which can realize four-corner hinged installation, rapid locking, limiting or unlocking through internal uneven stretching or compression displacement changes.

[0004] To achieve the above-mentioned object, the main structure of the inner windshield ferry device according to the present invention comprises a plurality of upper and lower slide plates and a frame, which are spaced, staggered, and arranged side by side and connected to form a linkage assembly by a connecting rod assembly. The upper slide plate is located above the lower slide plates, and frames are respectively provided on the outer sides of the lower slide plates on both sides.

[0005] Among them, the upper support beam of the main structure of the upper slide and the anti-slip gauze and upper slide wear plate arranged thereon;

[0006] The main structure of the lower slide includes a lower support beam, a nylon wear plate arranged thereon, and a lower slide wear plate;

[0007] The main structure of the connecting rod assembly includes a plurality of telescopic frames of prismatic structure;

[0008] In addition, locking assemblies are provided at the ends of the frame. The main structure of the locking assembly includes a support block, a sliding shaft and a pull rod provided thereon, and a spring provided on the sliding shaft.

[0009] The anti-skid abrasive cloth of the upper slide plate of the present invention has an anti-skid function, which effectively prevents passengers from slipping when passing through. The wear plate of the upper slide plate contacts the connecting rod assembly, the upper pin shaft is fixed to the upper pin shaft sleeve and then fixed by the pin shaft cap, and the upper pin shaft sleeve is connected to the upper support beam and then covered and protected by the upper pin shaft cover plate;

[0010] The nylon wear plate on the lower slide separates the lower support beam from the upper slide to avoid direct contact between metal parts. Grooves are set on both sides of the nylon wear plate to facilitate interlaced assembly with the lower support beam and prevent it from falling off. The wear plate of the lower slide contacts the connecting rod assembly.

[0011] The hinged connection points of the frame are connected by fixed support shafts and screws, and a sliding sleeve is provided between the connecting rod assembly and the screw to enable the connecting rod assembly to rotate relative to the frame;

[0012] The rigid connection gap inside the connecting rod assembly can assist the cross-board device to complete a small range of lateral rolling movement, and provide support and bearing for the upper and lower slides, driving the upper and lower slides to slide in a stepped manner. It has a hinge connection point with each independent upper and lower slides and each frame. The hinge connection points on the upper and lower slides are connected by an interpenetrating pin shaft. The pin shaft sets an allowable sliding gap in the corresponding mounting slot holes of the upper and lower slides to assist the upper and lower slides to slide in a stepped manner and perform uneven tension or compression displacement changes.

[0013] The locking assembly contains a locking component and an articulated support component. The cylindrical surface at the end of the support block provides a hinged mounting surface, and the sliding shaft and pull rod are used to quickly connect, lock, limit or unlock with other components of the inner windshield. The spring realizes the pressure-unlocking and automatic reset functions of the sliding shaft.

[0014] Compared with the prior art, the present invention has an upper supporting surface composed of multiple independent slides, which are divided into an upper slide and a lower slide, which are arranged and assembled alternately. The two ends of the upper slide and the lower slide are not connected, and are open in style, which can achieve uneven stretching or compression displacement changes. The modular integrated design makes the installation and disassembly of the ferry more convenient, reduces the time of vehicle assembly and installation operations, and the vehicle body end wall is free from the concave design, making the vehicle end more beautiful, ensuring the vehicle's curve passing performance under complex working conditions, and does not require auxiliary parts such as leaf springs, ferry supports and guide devices; its structure is simple, reduces the types and quantities of windshield components in the EMU, reduces the failure rate of the inner windshield, and improves the assembly efficiency and maintenance efficiency of the inner windshield. Description of the drawings:

[0015] Figure 1 It is a schematic diagram of the front principle of the main structure of the present invention.

[0016] Figure 2 It is a schematic diagram of the principle of the back side of the main structure of the present invention.

[0017] Figure 3 It is a schematic diagram of the axial principle of the main structure of the present invention.

[0018] Figure 4 It is an exploded schematic diagram of the main structure of the present invention.

[0019] Figure 5 The present invention is a schematic diagram of the main structural principle of the upper slide plate.

[0020] Figure 6 The figure is a schematic diagram of the main structural principle of the lower slide plate involved in the present invention.

[0021] Figure 7 The figure is a schematic diagram of the main structural principle of the connecting rod assembly involved in the present invention.

[0022] Figure 8 This is a schematic diagram of the axial side principle of the connecting rod assembly involved in the present invention.

[0023] Figure 9 This is a schematic diagram of the main structural principle of the locking assembly involved in the present invention.

[0024] Figure 10 This is an exploded schematic diagram of the main structure of the locking assembly involved in the present invention. Specific implementation method:

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0026] Example 1:

[0027] The main structure of the ferry device for the inner windshield involved in this embodiment is as follows Figure 1-4 As shown, it includes an upper slide 1, a lower slide 2, a frame 3, a connecting rod assembly 4 and a locking assembly 5; the two upper slides 1 and the three lower slides 2 are arranged at intervals, staggered and side by side, the two upper slides 1 are on the top, located between the lower slides 2, and the three lower slides 2 are at the bottom, and frames 3 are respectively provided on the outer sides of the lower slides 2 on both sides. The upper slide 1, the lower slide 2 and the frame 3 are connected into an integral structure by two sets of connecting rod assemblies 4. In addition, locking assemblies 5 are provided at both ends of the frame 3.

[0028] The main structure of the upper slide plate 1 involved in this embodiment is as follows Figure 5 As shown, it includes an upper support beam 11, anti-slip gauze 12, an upper slide wear plate 13, a pin cap 14, an upper pin 15, an upper pin cover 16, an upper pin sleeve 17 and a stop sleeve 18; at least three pieces of anti-slip gauze 12 are provided on the upper surface of the upper support beam 11, and an upper slide wear plate 13 is provided on the lower surface. The upper support beam 11 and the upper slide wear plate 13 are connected through an upper pin 15 with a pin cap 14, and an upper pin cover 16 is provided at the upper support beam 11 corresponding to the pin cap 14. An upper pin sleeve 17 is provided between the upper pin 15 and the upper support beam 11 and the upper slide wear plate 13, and the upper pin 15 is limited by the stop sleeve 18.

[0029] The main structure of the lower slide plate 2 involved in this embodiment is as follows Figure 6 As shown, it includes a lower support beam 21, a nylon wear plate 22, a lower skateboard wear plate 23, a pin connecting block 24, a lower pin 25, a lower pin sleeve 26 and a cotter pin 27; the upper surface of the lower support beam 21 is provided with a nylon wear plate 22, and the lower surface is provided with a lower skateboard wear plate 23, the lower support beam 21 and the lower skateboard wear plate 23 are connected by the pin connecting block 24 and the lower pin 25, a lower pin sleeve 26 is provided between the lower pin 25 and the lower skateboard wear plate 23 and the pin connecting block 24, and the lower pin 25 is limited by the cotter pin 27.

[0030] The main structure of the connecting rod assembly 4 involved in this embodiment is as follows Figure 7-8As shown, it includes a long connecting rod 41, a short connecting rod 42, an intermediate connecting rod 43, a stop nut 44, a stop screw 45, a threaded sleeve 46, a fixed support shaft 47, a screw 48 and a sliding sleeve 49; the four long connecting rods 41 and the four short connecting rods 42 are connected to form a retractable frame with three prismatic structures, and an intermediate connecting rod 43 is arranged in the middle of each prismatic structure. The connecting rod assembly 4 is connected to the upper slide 1 through the upper pin shaft 15 and the stop sleeve 18, and a stop nut 44 and a stop screw 45 are arranged at the connection. The connecting rod assembly 4 is connected to the lower slide 2 through the lower pin shaft 25 and the cotter pin 28, and a stop nut 44, a stop screw 45 and a threaded sleeve 46 are arranged at the connection. The connecting rod assembly 4 is connected to the frame 3 through the fixed support shaft 47 and the screw 48, and a sliding sleeve 49 is arranged at the connection.

[0031] This embodiment involves the main structure of the locking assembly 5 as shown in FIG. Figure 9-10 As shown, it includes a support block 51, a sliding shaft 52, a nylon sleeve 53, a spring baffle 54, a pull rod 55, a shaft retaining ring 56 and a spring 57; the sliding shaft 52 is passed through the support block 51, the rear end is sleeved with a nylon sleeve 53, the front end is provided with a spring baffle 54, the top is provided with a pull rod 55, the front end of the sliding shaft 52 passes through the spring baffle 54, and the rear end is provided with a shaft retaining ring 56, and a spring 57 is also provided on the sliding shaft 52 between the support block 51 and the spring baffle 54, the rear end of the spring 57 is limited by the support block 51, and the front end is limited by the spring baffle 54.

[0032] The inner windshield bridge device of this embodiment has self-supporting and load-bearing functions when in use. The upper slide plate 1 and the lower slide plate 2 slide in a stepped manner relative to each other, achieving uneven tension or compression displacement changes, capable of supporting the load at the inner windshield aisle, and meeting the requirements of four-corner hinged installation and rapid locking, limiting, or unlocking.

[0033] It can reduce the types and number of components at the vehicle end, for example, it reduces the leaf spring, leaf spring fixing frame, leaf spring clamping device, ferry bracket, ferry bracket sliding support, etc., making the ferry installation more convenient;

[0034] The overall weight of the vehicle's inner windshield is reduced, making the vehicle lighter.

[0035] The number and types of vehicle inner windshield inspection parts are reduced, maintenance costs are reduced, assembly efficiency is improved, and maintenance and inspection efficiency is improved.

Claims

1. A ferry device for an inner windshield, characterized in that: The main structure includes a plurality of upper slides and lower slides which are arranged at intervals, staggered and side by side, and a frame which are connected into a linkage assembly through a connecting rod assembly.

2. The inner windshield bridge device according to claim 1, characterized in that: The upper slide plate is located above the lower slide plates, and frames are respectively provided on the outer sides of the lower slide plates on both sides.

3. The inner windshield bridge device according to claim 1, characterized in that: The main structure of the upper slide includes an upper support beam, an anti-skid gauze arranged thereon, and an upper slide wear plate.

4. The inner windshield bridge device according to claim 1, characterized in that: The main structure of the lower slide plate includes a lower support beam, a nylon wear plate arranged thereon, and a lower slide plate wear plate.

5. The inner windshield bridge device according to claim 1, characterized in that: The main structure of the connecting rod assembly includes a plurality of telescopic frames with prismatic structures.

6. The inner windshield bridge device according to any one of claims 1 to 5, characterized in that: The ends of the frame are each provided with a locking assembly, and the main structure of the locking assembly includes a support block, a sliding shaft and a pull rod provided thereon, and a spring provided on the sliding shaft.

7. The inner windshield bridge device according to claim 6, characterized in that: Anti-slip sandpaper has anti-slip function; The upper pin shaft is fixed to the upper pin shaft sleeve by the pin shaft cap, and the upper pin shaft sleeve is connected to the upper support beam and is covered and protected by the upper pin shaft cover plate; There are grooves on both sides of the nylon wear plate, which are assembled with the lower support beam; The hinged connection points of the frame are connected by fixed support shafts and screws, and a sliding sleeve is provided between the connecting rod assembly and the screws; The connecting rod assembly drives the upper and lower slides to slide in a stepped manner. There is a hinge connection point with each independent upper and lower slide and each frame. The hinge connection points on the upper and lower slides are connected by an interpenetrating pin shaft. The locking assembly contains a locking component and an articulated support component. The cylindrical surface at the end of the support block provides a hinged mounting surface, and is connected, locked, limited or unlocked with other components of the inner windshield through a sliding shaft and a pull rod. The pressure-release unlocking and automatic reset functions of the sliding shaft are realized by a spring.

Images