Simple pedestrian passing bridge

Abstract

The utility model discloses a simple pedestrian passing bridge which is used for being arranged on two sides of a track groove and comprises a bridge body, a driving structure and a locking structure, the bridge body is arranged on an installation face on one side of the track groove in a sliding mode and is provided with a guardrail and an overturning assembly, and when the bridge body moves, the overturning assembly is driven to drive the guardrail to swing upwards. The driving structure is correspondingly arranged on the bottom face of the bridge body and comprises a sealing bag body and a telescopic piece, fluid in the sealing bag body flows into the telescopic piece when being stressed, the bridge body is pushed to stretch out to be clamped and fixed with the locking structure correspondingly arranged on the locking face on the other side of the track groove, and pedestrians can conveniently pass through the bridge floor; after a pedestrian passes, the locking structure is triggered to unlock the bridge body, and the bridge body is driven by the driving structure to slowly retract. The passage bridge provided by the utility model can automatically stretch out and draw back when pedestrians pass, meanwhile, the safety during passing is improved through the additionally arranged protection device, and enough safety can still be ensured when many people pass.

Description

Technical Field

[0001] The utility model relates to the field of simple passage bridges, in particular to a simple pedestrian passage bridge. Background Art

[0002] Traditional heavy industry enterprises usually plan many track trenches in their workshops for installing tracks and railcars to facilitate the transfer of heavy products. Such track trenches usually extend for dozens or hundreds of meters, blocking pedestrian traffic. Usually, a sliding bridge is built on one side of the trench to allow pedestrians to pass. This bridge facilitates temporary pedestrian passage and does not hinder the transfer of products by railcars.

[0003] Traditional bridges are generally set up by laying steel plates in the trench that are driven by cylinders to extend and retract as temporary passages. The steel plate-paved bridge requires people to control the cylinders to drive the steel plates to extend when passing, and control the cylinders to drive the steel plates to retract after passing. If the plates are forgotten to be retracted after passing, they will collide with rail vehicles and cause serious damage. This type of bridge control system is inconvenient to establish, and control pipelines need to be installed on both sides of the trench through the trench. In addition, the simple steel plate structure cannot guarantee the safe passage of pedestrians. Utility Model Content

[0004] In view of the above, it is necessary for the present invention to provide a convenient and automatically retractable passage bridge structure.

[0005] A simple pedestrian bridge is used to be arranged on both sides of a track ditch, comprising: a bridge body, a driving structure and a locking structure;

[0006] The rail groove is provided with a mounting surface and a locking surface on both sides;

[0007] The bridge body is arranged on the mounting surface, and the bridge body includes a bridge frame, and a connecting rod is formed on the bottom surface of the bridge frame at one end close to the track groove, and a connecting hole is formed at the end of the connecting rod extending downward. The bottom surface of the bridge frame is also provided with two mutually parallel grooves, and the connecting rod is located between the two grooves;

[0008] The driving structure includes a telescopic member and a power assembly, one end of the telescopic member is arranged in the connection hole, and the other end is mechanically connected to the power assembly (23), and the power assembly is arranged on the mounting surface; the power assembly drives the telescopic member to extend, driving the bridge to move to the locking surface;

[0009] The locking structure is arranged on the locking surface. When the telescopic member pushes the bridge to move to the locking surface, the locking structure locks the bridge.

[0010] Furthermore, the bridge body also includes two guardrails, which are hinged on both sides of the bridge frame and can swing 90 degrees. Each guardrail includes a swing axis hinged on both sides of the bridge frame, and a guardrail frame is provided on the swing axis.

[0011] Furthermore, the bridge body also includes two groups of flip assemblies, each group of the flip assemblies includes a gear, a connecting shaft, two bevel gears and two racks, and the gear is arranged in a groove; one end of the connecting shaft is provided with a gear, and the other end is connected to one of the bevel gears, and the other bevel gear is arranged on the swing shaft, and the two bevel gears are vertically meshed; the two racks are arranged parallel to each other on the mounting surface and close to the track groove, and each rack at least partially extends into each groove to engage with each gear.

[0012] Furthermore, the driving structure further includes two sliding platforms, which are mounted parallel to each other on the mounting surface, and the bridge is slidably mounted on the two sliding platforms.

[0013] Furthermore, the power assembly includes a sealing sac, a lifting pedal and a connecting tube, the sealing sac is installed on the bottom surface of the lifting pedal; the bottom surface of the lifting pedal is provided with multiple guide columns, each guide column is sleeved with a first spring; one end of the connecting tube is connected to the sealing sac, and the other end is connected to the telescopic part.

[0014] Furthermore, a conical flow control valve with its conical tip facing the telescopic member is provided in the connecting pipe, and a plurality of cutouts are distributed on the outer peripheral surface of the flow control valve, each of which extends from the conical tip to the other end.

[0015] Furthermore, the locking structure includes a pressure plate, two sliding plates and two locking rods, and the pressure plate is arranged on the locking surface; the locking surface is provided with two oppositely arranged accommodating grooves, the two accommodating grooves are arranged parallel to the track groove, and each locking rod is installed in each accommodating groove; the two sliding plates are arranged parallel to each other, and the bottom surface of the pressure plate is provided with two pressure blocks, one end of each sliding plate is against each pressure block, and the other end extends toward the direction close to the track groove and abuts against each locking rod.

[0016] Furthermore, a guide rod is provided on the bottom surface of the pressure plate, and the guide rod sleeve is provided with a second spring; a third spring is provided in each accommodating groove, one end of the third spring abuts against the locking rod, and the other end abuts against the side wall of the accommodating groove.

[0017] Furthermore, the locking surface is provided with a locking groove, which is located between the two accommodating grooves and connects the two accommodating grooves, and is arranged perpendicular to the two accommodating grooves; when the bridge moves to the locking surface, the connecting rod and the telescopic part extend into the locking groove, and the two locking rods extend into the locking groove to resist the connecting rod, thereby locking the bridge.

[0018] Furthermore, a first abutting slope is provided at one end of the sliding plate abutting the locking rod, a V-shaped groove is provided at the position where the locking rod abuts the sliding plate, and the V-shaped groove is provided with a second abutting slope, and the second abutting slope abuts against the first abutting slope.

[0019] Compared with the existing technology, the utility model provides a simple pedestrian bridge, which sets a driving structure at one end of the bridge body. When the lifting pedal is subjected to the pressure of pedestrians, it descends and squeezes the sealed bag, and transports the fluid in the bag to the telescopic part, pushing the bridge body to slide out and span the track groove. During the sliding of the bridge body, the flip components set on both sides of the bridge frame drive the guardrail to swing upward 90 degrees. At this time, the bridge body moves to the preset position and is locked by the locking structure, which is convenient for pedestrians to pass through the bridge body safely. After the pedestrians pass through the bridge body, the pressure plate is triggered to release the locking structure of the bridge body. The bridge body slowly retracts under the action of the flow control valve, realizing the automatic extension and contraction of the bridge body when pedestrians pass, thereby improving the safety of passage. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional diagram of a preferred embodiment of a simple pedestrian bridge of the present invention;

[0021] Figure 2 A three-dimensional diagram showing the connection between the bridge body and the drive structure;

[0022] Figure 3 This is an exploded view of the bridge;

[0023] Figure 4 for Figure 2 Enlarged view of point A in the middle;

[0024] Figure 5 for Figure 2 Enlarged view of point B in the middle;

[0025] Figure 6 This is the state diagram after the traffic bridge is extended;

[0026] Figure 7 This is a diagram of the internal structure of the locking structure.

[0027] The following are the descriptions of the reference numerals:

[0028] 1. Track groove; 101. Mounting surface; 102. Locking surface; 103. Accommodating groove; 104. Locking groove; 10. Bridge body; 11. Bridge frame; 111. Connecting hole; 112. Groove; 113. Rotating shaft hole; 114. Mounting groove; 12. Guardrail; 121. Swing shaft; 122. Guardrail frame; 13. Flip assembly; 131. Gear; 132. Connecting shaft; 133. Bevel gear; 134. Rack; 20. Driving structure; 21. Sliding platform; 22. Telescopic part; 23. Power assembly; 231. Sealing airbag; 232. Lifting pedal; 233. Connecting pipe; 234. Flow control valve; 30. Locking structure; 31. Pressure plate; 311. Pressure block; 312. Guide rod; 32. Sliding plate; 33. Locking rod; 34. Third spring. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0030] See also Figure 1-Figure 3 A simple pedestrian bridge is provided, designed to be installed on either side of a track trench 1 to facilitate pedestrians crossing the trench. The bridge comprises a bridge body 10, a drive structure 20, and a locking structure 30. The track trench 1 is provided with mounting surfaces 101 for mounting the bridge body 10 and the drive structure 20, and locking surfaces 102 for mounting the locking structure 30. The bridge body 10 is extended by the drive structure 20 provided on the mounting surfaces 101, spanning the track trench 1 and being locked on the locking surfaces 102 by the locking structure 30.

[0031] The bridge body 10 is set on the installation surface 101 and one end is flush with the side wall of the track groove 1. The bridge body 10 includes a bridge frame 11, two guardrails 12 and two sets of flip assemblies 13; the bridge frame 11 is against the installation surface 101, and the ends of the bridge frame 11 close to the track groove 1 and away from the track groove 1 are set as inclined surfaces to facilitate the passage of pedestrians and small conveying devices, such as trolleys, manual hydraulic transport vehicles, etc. A connecting rod is formed on the bottom surface of the bridge frame 11 near the end of the track groove 1, and a connecting hole 111 is provided at the end of the connecting rod extending downward for connecting to the driving structure 20. The driving structure 20 pushes the bridge frame 11 to extend across the track groove and be erected on the locking surface 102 to form a passable bridge deck. Two parallel grooves 112 are also provided on both sides of the bottom connecting rod of the bridge frame 11, and the connecting rod is located between the two grooves 112. The bridge 11 is provided with a mounting slot 114 for the guardrail 12. The sidewalls of the mounting slot 114 are provided with a pivot hole 113 connecting to the groove 112. The two guardrails 12 are hingedly connected to the mounting slots 114 on either side of the bridge 11, allowing for 90-degree rotation. Each guardrail 12 includes a pivot shaft 121 hinged within the mounting slots 114 on either side of the bridge 11. A ∩-shaped guardrail frame 122 is mounted on the pivot shaft 121. Several connecting columns are installed within the ∩-shaped guardrail frame 122 to prevent pedestrians from falling into the track trench 1, thereby improving pedestrian safety.

[0032] like Figure 4 As shown, two sets of flip assemblies 13 are installed in the groove 112 of the bridge 11 and are connected to the swing shafts 121 of the guardrails 12 on both sides through the shaft holes 113. Each set of flip assemblies 13 includes a gear 131, a connecting shaft 132, two bevel gears 133, and two racks 134. A rotatable connecting shaft 132 is inserted into the shaft hole 113. One end of the connecting shaft 132 extends into the groove 112 and is fitted with the gear 131. The other end extends outside the bridge 11 and is connected to a bevel gear 133. Another bevel gear 133 is installed on the connecting shaft 132. The two bevel gears 133 are vertically meshed.

[0033] When the gear 131 in the groove 112 rotates, it drives the bevel gear 133 set on the connecting shaft 132 to rotate synchronously, and drives the bevel gear 133 set on the swing shaft 121 to rotate, thereby driving the guardrail 12 to flip upward around the swing shaft 121, so that the guardrail 12 stands upright on both sides of the bridge 11 to form protection, preventing pedestrians from falling into the track groove 1.

[0034] Please combine Figure 2 The two racks 134 are arranged parallel to each other on the mounting surface 101 and close to the track groove 1. Each rack 134 is at least partially accommodated in the groove 112 of the bridge 11. When the bridge 11 drives the gear 131 to move to engage with the rack 134, the gear 131 rotates, driving the bevel gear 133 to rotate synchronously, thereby driving the guardrail 12 to stand upright.

[0035] The drive structure 20 is mechanically connected to the bridge body 10. It pushes the bridge body 10 outward and engages with the locking structure 30 on the other side of the track groove 1, facilitating pedestrian passage on the bridge deck. The drive structure 20 includes two sliding platforms 21, a telescopic member 22, and a power assembly 23. The two sliding platforms 21 are arranged parallel to the mounting surface 101. The bridge frame 11 is slidably mounted on the two sliding platforms 21, guiding the bridge body 10 as it slides while effectively reducing sliding friction.

[0036] The power assembly 23 is mounted on the mounting surface 101, and the telescopic member 22 is positioned between the two sliding platforms 21. A pneumatic cylinder, hydraulic cylinder, or other drive element can be used. One end of the telescopic member 22 is positioned within the connection hole 111 of the bridge 11, and the other end is mechanically connected to the power assembly 23, which provides the power for the telescopic movement of the telescopic member 22.

[0037] The power assembly 23 comprises a sealed capsule 231, a lifting pedal 232, and a connecting tube 233. The sealed capsule 231 is made of a flexible material and is mounted on the bottom surface of the lifting pedal 232. It contains a fluid. Guide posts are located at each of the four corners of the bottom surface of the lifting pedal 232, each of which is fitted with a first spring. The connecting tube 233 is connected to the sealed capsule 231 at one end and to the telescopic member 22 at the other.

[0038] When under pressure, the lifting pedal 232 descends along the four guide columns, squeezing the sealing capsule 231 and the first spring at the same time. After the sealing capsule 231 is squeezed, the fluid inside enters the telescopic part 22 through the connecting pipe 233. The telescopic part 22 slides out under the push of the fluid, thereby driving the bridge 11 to cross the track groove 1; after the pressure disappears, the compressed first spring returns to its original position, pushing the lifting pedal 232 up to be flush with the mounting surface 101. The sealing capsule 231 returns to its original state under the drive of the lifting pedal 232, and the fluid in the telescopic part 22 is drawn back into the sealing capsule 231, driving the telescopic part 22 and the bridge 11 to return to their original position.

[0039] Further, combined with Figure 5 As shown, a conical flow control valve 234 with its conical tip facing the telescopic member 22 is also provided in the connecting tube 233, and a plurality of incisions are distributed on the outer peripheral surface of the flow control valve 234, and the incisions extend from the conical tip to the other end; when the fluid in the sealing capsule 221 flows toward the telescopic member 22, the conical tip of the flow control valve 224 is stretched open, thereby increasing the flow rate of the fluid; and when the fluid flows in the opposite direction, the conical tip of the flow control valve 234 is squeezed and contracted by the fluid, and the aperture through which the fluid passes becomes smaller, thereby slowing down the movement speed of the bridge body 10 when it retracts.

[0040] See also Figure 6 、 Figure 7, the driving structure 20 pushes the bridge body 10 to extend across the track groove, and the locking structure 30 locks the end of the bridge body 10 extending to the other side of the track groove. The locking structure 30 includes a pressure plate 31, two sliding plates 32 and two locking rods 33; the pressure plate 31 is set on the locking surface 102, and the bottom surface of the pressure plate 31 is provided with two pressure blocks 311 and a guide rod 312, and the guide rod 312 is provided with a second spring; the top corner of each pressure block 311 abuts against the top corner of one end of each sliding plate 32. The two sliding plates 32 are arranged parallel to each other, and the other end of each sliding plate 32 extends in the direction close to the track groove 1 and is provided with a first abutting inclined surface for abutting against the locking rod 33.

[0041] It can be understood that the two contacting top corners of the pressing block 311 and the sliding plate 32 are beveled to facilitate the pressing block 311 to descend and abut against the end of the sliding plate 32 located below the pressing plate 31, so that the sliding plate 32 moves toward the track groove 1. Figure 1 The locking surface 102 is provided with two oppositely disposed receiving grooves 103 and a locking groove 104 sandwiched between the two receiving grooves 103. The two receiving grooves 103 are arranged parallel to the track groove 1. Each locking rod 33 is installed in each receiving groove 103. Each receiving groove 103 is provided with a third spring 34. One end of the third spring 34 abuts the locking rod 33, and the other end abuts the side wall of the receiving groove 103. The locking groove 104 is located between the two receiving grooves 103, connecting the two receiving grooves 103 and being arranged perpendicular to the two receiving grooves 103. When the bridge 11 moves to the locking surface 102, the connecting rod and the telescopic member 22 extend into the locking groove 104. The two locking rods 33 extend into the locking groove 104 to resist the connecting rod, thereby locking the bridge 11.

[0042] Specifically, a V-shaped groove is provided in the position where the locking rod 33 corresponds to the position where the sliding plate 32 abuts against the top. The inclined surface of the V-shaped groove away from the third spring 34 is set as a second abutting inclined surface. The open end of the second abutting inclined surface abuts against the first abutting inclined surface, and is used to push the locking rod 33 to slide in the direction away from the connecting rod when the first abutting inclined surface slides from the open end of the second abutting inclined surface to the other end.

[0043] Furthermore, a guiding slope is provided at one end of the locking rod 33 away from the third spring 34 so that when the bridge body 10 is extended, the connecting rod of the bridge frame 11 can push the locking rod 33 to slide to both sides, thereby facilitating the connecting rod of the bridge frame 11 to pass over the locking rod 33 .

[0044] The use process of the pedestrian bridge of the utility model is as follows:

[0045] When a pedestrian needs to pass through the bridge, the pedestrian moves to the lifting pedal 232 on the mounting surface 101, triggering the power assembly 23. As the lifting pedal 232 is subjected to the pressure of the pedestrian's weight, the fluid in the sealed bag 231 is filled into the telescopic member 22 through the connecting pipe 233, giving power to the telescopic member 22, so that the telescopic member 22 pushes the bridge body 10 to slide out along the sliding platform 21. When the bridge frame 11 drives the gear 131 installed on the connecting shaft 132 to move synchronously until it meshes with the rack 134, the gear 131 starts to rotate, driving the bevel gear 133 on the connecting shaft 132 to rotate synchronously. The bevel gear 133 drives the guardrail 12 to swing upward, forming a protection when the pedestrian passes.

[0046] When the bridge body 10 is pushed by the telescopic member 22 to the locking surface 102 on the other side of the track groove and connected with the locking structure 30, the connecting rod of the bridge frame 11 and the telescopic member 22 extend into the locking groove 104, and the connecting rod presses against the guiding inclined surface of the locking rod 33, pushing the two locking rods 33 to the sides along the two accommodating grooves 103 respectively. The connecting rod of the bridge frame 11 stops after passing the two locking rods 33. The two locking rods 33 resume their extension under the action of the third spring, clamping the telescopic member 22 and blocking the connecting rod, thereby preventing the bridge frame 11 from retracting;

[0047] After the bridge body 10 is locked, pedestrians can pass safely. After passing, the pedestrian steps on the pressure plate 31, causing the pressure plate 31 to descend and press the end of the sliding plate 32, thereby pushing the sliding plate 32 toward the locking rod 33, so that the first abutting inclined surface of the sliding plate 32 abuts against the second abutting inclined surface of the locking rod 33, pushing the locking rod 33 to slide against the third spring 34, releasing the resistance to the connecting rod, and thus releasing the lock of the bridge body 10;

[0048] When the lock on the bridge body 10 is released, the lifting pedal 232 rises under the action of the first spring force. Since a flow control valve 234 is provided in the connecting pipe 233, the fluid in the telescopic part 22 slowly flows back to the sealing bag 231, slowing down the speed of the bridge body 10 when it retracts, thereby effectively avoiding the danger to pedestrians who have not passed by when the bridge body 10 retracts too quickly when multiple people pass.

[0049] The present utility model provides a simple pedestrian bridge. By designing the driving structure 20 to cooperate with the relative locking structure 30, the automatic extension and retraction action of the bridge is realized, and the setting of the flow control valve 234 can avoid danger when multiple people pass through. The driving structure 20 can even push the bridge body 10 to slide and extend while driving the guardrail 12 to swing upward, thereby improving the protection of pedestrians when passing.

[0050] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A simple pedestrian bridge, arranged on both sides of a track ditch (1), characterized in that: include: A bridge body (10), a driving structure (20) and a locking structure (30); The track groove (1) is provided with a mounting surface (101) and a locking surface (102) on both sides respectively; The bridge body (10) is arranged on the mounting surface (101), and the bridge body (10) includes a bridge frame (11). A connecting rod is formed on the bottom surface of the bridge frame (11) near one end of the track groove (1), and a connecting hole (111) is provided at the end portion of the connecting rod extending downward. The bottom surface of the bridge frame (11) is also provided with two mutually parallel grooves (112), and the connecting rod is located between the two grooves (112); The driving structure (20) includes a telescopic member (22) and a power assembly (23), one end of the telescopic member (22) is disposed in a connection hole (111), and the other end is mechanically connected to the power assembly (23), and the power assembly (23) is disposed on a mounting surface (101); the power assembly (23) drives the telescopic member (22) to extend, thereby driving the bridge (11) to move to the locking surface (102); The locking structure (30) is arranged on the locking surface (102), and when the telescopic member (22) pushes the bridge frame (11) to move onto the locking surface (102), the locking structure (30) locks the bridge frame (11).

2. A simple pedestrian bridge according to claim 1, characterized in that: The bridge body (10) further comprises two guardrails (12), the two guardrails (12) being hinged on both sides of the bridge frame (11) so as to be capable of swinging 90 degrees, each guardrail (12) comprising a swing shaft (121) hinged on two side surfaces of the bridge frame (11), and a guardrail frame being arranged on the swing shaft (121).

3. The simple pedestrian bridge according to claim 1, characterized in that: The bridge body (10) further comprises two groups of flip assemblies (13), each group of the flip assemblies (13) comprises a gear (131), a connecting shaft (132), two bevel gears (133) and two racks (134), wherein the gear (131) is arranged in the groove (112); one end of the connecting shaft (132) is sleeved with the gear (131), and the other end is connected to one of the bevel gears (133); the other bevel gear (133) is arranged on the swing shaft (121), and the two bevel gears (133) are vertically meshed; the two racks (134) are arranged parallel to each other on the mounting surface (101) and close to the track groove (1), and each rack (134) at least partially extends into each groove (112) to mesh with each gear (131).

4. The simple pedestrian bridge according to claim 1, characterized in that: The driving structure (20) further comprises two sliding platforms (21), the two sliding platforms (21) being mounted on the mounting surface (101) in parallel with each other, and the bridge (11) being slidably mounted on the two sliding platforms (21).

5. The simple pedestrian bridge according to claim 1, characterized in that: The power assembly (23) comprises a sealing capsule (231), a lifting pedal (232) and a connecting pipe (233); the sealing capsule (231) is mounted on the bottom surface of the lifting pedal (232); a plurality of guide columns are provided on the bottom surface of the lifting pedal (232), and a first spring is sleeved on each guide column; one end of the connecting pipe (233) is connected to the sealing capsule (231), and the other end is connected to the telescopic member (22).

6. The simple pedestrian bridge according to claim 5, characterized in that: A conical flow control valve (234) with its conical tip facing the telescopic member (22) is provided in the connecting pipe (233). A plurality of cutouts are distributed on the outer peripheral surface of the flow control valve (234), and each cutout extends from the conical tip to the other end.

7. The simple pedestrian bridge according to claim 1, characterized in that: The locking structure (30) includes a pressing plate (31), two sliding plates (32) and two locking rods (33), wherein the pressing plate (31) is arranged on the locking surface (102); the locking surface (102) is provided with two oppositely arranged receiving grooves (103), the two receiving grooves are arranged parallel to the track groove (1), and each of the locking rods (33) is installed in each receiving groove (103); the two sliding plates (32) are arranged parallel to each other, and the bottom surface of the pressing plate (31) is provided with two pressing blocks (311), one end of each sliding plate (32) abuts against each pressing block (311), and the other end extends toward the direction close to the track groove (1) and abuts against each locking rod (33).

8. The simple pedestrian bridge according to claim 7, characterized in that: A guide rod (312) is provided on the bottom surface of the pressure plate (31), and a second spring is sleeved on the guide rod (312); a third spring (34) is provided in each accommodating groove (103), and one end of the third spring (34) abuts against the locking rod (33), and the other end abuts against the side wall of the accommodating groove (103).

9. The simple pedestrian bridge according to claim 8, characterized in that: The locking surface (102) is provided with a locking groove (104), which is located between the two accommodating grooves (103) and connects the two accommodating grooves (103), and is arranged vertically with the two accommodating grooves (103); when the bridge (11) moves to the locking surface (102), the connecting rod and the telescopic member (22) extend into the locking groove (104), and the two locking rods (33) extend into the locking groove (104) to resist the connecting rod, thereby locking the bridge (11).

10. The simple pedestrian bridge according to claim 7, characterized in that: One end of the sliding plate (32) abutting against the locking rod (33) is provided with a first abutting inclined surface, a V-shaped groove is provided at the position where the locking rod (33) abuts against the sliding plate (32), and the V-shaped groove is provided with a second abutting inclined surface, and the second abutting inclined surface abuts against the first abutting inclined surface.

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