Floating type pedestrian protection fence

Abstract

A floating type pedestrian protective fence relates to the technical field of protective fences, and comprises a guardrail, a pillar, a base and a floating plate, the base is fixed on the ground, the pillar is fixedly connected with the base, the guardrail is slidably connected with the pillar so as to move up and down, the floating plate is located at the bottom of the guardrail, the pillar is provided with a latch structure, and the latch structure is arranged on the base. The guardrail is provided with a clamping pin mechanism, after the water surface rises and the guardrail floats, the clamping pin mechanism is matched with the clamping tooth structure in a clamping mode so that the guardrail cannot move downwards relative to the supporting column, and after the water surface descends, the clamping pin mechanism is separated from the clamping tooth structure so that the guardrail can move downwards to reset relative to the supporting column. Through cooperation of the clamping pin mechanism and the clamping tooth structure, after the guardrail floats due to rising of the water surface, the clamping pin mechanism and the clamping tooth structure are matched in a clamping mode, the guardrail is limited and cannot move downwards, and therefore the guardrail can provide supporting force when pedestrians support the guardrail.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of protective fences. BACKGROUND

[0002] During the flood season, rainy season and other periods, the pedestrian protective fence set near the water area is often submerged due to the rising water level. In order to solve this problem, the prior art usually uses a floating protective fence near the water area which can float with the water level. Although the floating protective fence in the prior art has the function of rising and falling with the water level, its structural design has certain defects and cannot meet the actual use requirements. The traditional floating protective fence mainly uses the buoyancy to make the protective fence automatically rise and fall with the change of the water level, so as to maintain a certain height above the water surface, thereby realizing the basic functions of blocking, warning and area division. When pedestrians pass through the water immersion area, due to factors such as water flow and slippery ground, the pedestrians often need to use the protective fence as a support to maintain body balance. However, the traditional floating protective fence only relies on the buoyancy to maintain the position on the water surface, and when it is supported by the pedestrians, the protective fence will sink and float due to the force, and cannot provide stable support force. During the process of supporting the protective fence, the shaking of the protective fence may increase the panic of the pedestrians, and the pedestrians are also easy to lose balance due to the sinking of the protective fence, thereby increasing the risk of falling into the water and affecting the safe passing. In an emergency, the traditional floating protective fence cannot provide reliable gripping support points for pedestrians, has poor safety protection effect and has certain limitations. SUMMARY

[0003] Therefore, the present application provides a floating pedestrian protective fence which can still provide stable support for pedestrians after rising with the water level, and has better safety protection effect on pedestrians.

[0004] In order to achieve the above purpose, the present application provides the following technical solutions.

[0005] The floating pedestrian protective fence comprises a guardrail, a support column, a base and a floating plate. The base is fixed on the ground, the support column is fixedly connected with the base, the guardrail is slidably connected with the support column to be able to move up and down, the floating plate is located at the bottom of the guardrail, the support column is provided with a toothed structure, and the guardrail is provided with a pin mechanism. After the water level rises and the guardrail floats up, the pin mechanism is connected with the toothed structure to make the guardrail unable to move downward relative to the support column. After the water level falls, the pin mechanism is disconnected with the toothed structure to make the guardrail be able to move downward relative to the support column and reset.

[0006] By using the cooperation of the pin mechanism and the toothed structure, after the water level rises and the guardrail floats up, the pin mechanism is connected with the toothed structure to limit the guardrail from moving downward, so that the guardrail can provide support force when the pedestrians support it.

[0007] The pin mechanism comprises: The pin cylinder is internally provided with a pin cavity, a driving cavity and a connecting channel, the pin cavity and the driving cavity are communicated through the connecting channel, and the driving cavity is provided with a downward first opening; The one-way pin is arranged in the pin cavity and can slide out and retract into the pin cavity, and a top of the one-way pin is provided with a clamping portion matched with the tooth structure. The first reset spring is used to provide the elastic force required for the retraction of the one-way pin into the pin cavity, one end of the first reset spring is fixed to an inner wall of the pin cavity, and the other end of the first reset spring is connected with the one-way pin.

[0008] When the guardrail floats on the water surface, the water surface seals the first opening to form a water seal effect, the water surface continues to rise to compress the air in the driving cavity, the air pressure drives the one-way pin to engage with the tooth structure, similar to a ratchet mechanism, the one-way pin can only move from bottom to top when engaging with the tooth structure, and cannot move from top to bottom, so that the guardrail cannot move downward, and the guardrail cannot sink when a pedestrian supports the guardrail, thereby providing stable support for the pedestrian. When the water level drops, the first reset spring drives the one-way pin to retract, and the one-way pin is disengaged from the tooth structure, so that the guardrail can be reset with the water level. Through the cooperation of the floating plate and the pin mechanism, the guardrail can automatically adjust the height of the guardrail according to the change of the water level, ensure that the guardrail is always in the best protection position, and keep the guardrail locked and unable to move downward during the support of the pedestrian, thereby providing stable support for the pedestrian and achieving better safety protection effect. The rising and falling of the water surface is used to automatically drive the extension and retraction of the one-way pin, and then the clamping cooperation and disengagement of the pin mechanism and the tooth structure are converted, and the structure is simple and ingenious, without the need for an additional power mechanism to drive.

[0009] Further, the guardrail is provided with a locking hole, and the support column is provided with a locking mechanism, the locking mechanism comprising: A locking cavity is provided with a second opening at the bottom; A locking pin is arranged in the locking cavity and can slide into and out of the locking hole; A floating top pin is arranged in the locking cavity and can rise and fall with the water level, and the floating top pin and the locking pin are driven through an inclined surface; A second reset spring is provided, one end of the second reset spring is fixed to an inner wall of the locking cavity, and the other end of the second reset spring is connected with the locking pin.

[0010] In the non-flood season, pedestrians may accidentally pull the guardrails, causing injury or injury, and there is a certain safety hazard. By setting the locking mechanism, in the non-flood season or when the water level is low, the locking pin is inserted into the locking hole on the guardrail to lock the guardrail firmly to prevent the guardrail from being accidentally pulled. Through the cooperation of the floating top pin and the second opening, the locking mechanism can automatically respond according to the change of water level. Initially, the locking pin is inserted into the locking hole on the guardrail to lock the guardrail, so that it cannot move up and down. When the water level rises, the water enters the locking cavity through the second opening, pushes the floating top pin upward, drives the locking pin to exit the locking hole, and realizes the automatic unlocking of the guardrail. When the water level drops, the floating top pin drops with the water level, and the second reset spring pushes the locking pin to reset, ensuring that the locking mechanism returns to the initial state.

[0011] Further, a filter screen is arranged at the first opening.

[0012] Further, a filter screen is arranged at the second opening.

[0013] In an environment where the water level changes frequently, the water usually contains impurities such as mud, leaves and branches. The filter screen can prevent these impurities from entering the pin cylinder and the locking cavity through the first opening and the second opening, reduce wear and tear, protect the internal mechanism, and prolong the service life of the pin mechanism and the locking mechanism. At the same time, the design of the filter screen can simplify the maintenance process of the pin cylinder and the locking cavity. Only the filter screen needs to be cleaned and replaced regularly.

[0014] Further, the clamping part is hinged to the top of the one-way pin. During the rising process of the guardrail, the clamping part can automatically adjust the angle, so that the meshing action of the clamping part and the toothed structure during the rising process of the guardrail is more smooth, avoiding the problem of jamming caused by angle deviation, and improving the stability and reliability of the meshing of the clamping part and the toothed structure.

[0015] Further, the locking mechanism further comprises an unlocking pull rod for manually unlocking the locking pin, the bottom of the unlocking pull rod is fixedly connected with the locking pin, and the top of the unlocking pull rod penetrates through the locking cavity and is arranged outside. The design of the unlocking pull rod enables the locking mechanism to have a manual unlocking function. When the automatic unlocking function fails or emergency unlocking is needed, the locking pin can be manually withdrawn by pulling the unlocking pull rod, so that the guardrail can still operate normally in special circumstances, improving the reliability of the protective fence. At the same time, by pulling the unlocking pull rod, the movement state of the locking pin can be quickly checked to determine whether the mechanism is working normally, providing a convenient operation mode during maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a perspective structural schematic view of the floating pedestrian protective fence of the present application.

[0017] Figure 2 It is a perspective structural schematic view of the floating pedestrian protective fence of the present application from another angle.

[0018] Figure 3 Partial exploded view of the floating pedestrian protective fence of the present application.

[0019] Figure 4 Front view of the floating pedestrian protective fence of the present application.

[0020] Figure 5 Sectional view of the floating pedestrian protective fence of the present application.

[0021] Figure 6 is Figure 5 Enlarged view of A in the middle.

[0022] Figure 7 is Figure 4 Sectional view along direction B-B in the middle.

[0023] Figure 8 is the perspective structural schematic diagram of the locking bolt and the floating top pin.

[0024] The reference signs include: guardrail 1, bayonet cylinder 11, bayonet cavity 12, driving cavity 13, connecting channel 14, first opening 15, one-way bayonet 16, clamping part 161, first return spring 17, sliding slot 19; support column 2, clamping tooth structure 21, locking hole 22, locking cavity 23, second opening 24, locking bolt 25, floating top pin 26, second return spring 27, unlocking pull rod 28, pull ring 281, clamping block 29; base 3, floating plate 4. DETAILED DESCRIPTION

[0025] The present application will be described in detail below in combination with specific embodiments.

[0026] In combination with Figures 1-3 , the floating pedestrian protective fence of the present embodiment includes a guardrail 1, a support column 2, a base 3 and a floating plate 4, the base 3 is fixed on the ground, the support column 2 is fixedly connected with the base 3, as shown in Figure 3 , the guardrail 1 is slidably connected with the support column 2 through the sliding slot 19 and the clamping block 29 to be able to move up and down relative to each other, and the floating plate 4 is located at the bottom of the guardrail 1. The horizontal rod of the guardrail 1 can also be provided in a hollow sealed structure, so that the horizontal rod can generate additional buoyancy. Referring to Figure 3 , the support column 2 is provided with a clamping tooth structure 21, and the guardrail 1 is provided with a bayonet mechanism, in combination with Figure 3 , Figure 5 and Figure 6The latch mechanism comprises a latch cylinder 11, a one-way latch 16 and a first return spring 17. The latch cylinder 11 is internally provided with a latch cavity 12, a driving cavity 13 and a connecting channel 14, and the latch cavity 12 and the driving cavity 13 are communicated through the connecting channel 14. The driving cavity 13 is provided with a first opening 15 downward, and after the water level rises, the first opening 15 is blocked by the water, and the driving cavity 13 forms a water seal effect. As the water level continues to rise, the air in the driving cavity 13 is compressed by the rising water level, thereby driving the one-way latch 16. The one-way latch 16 is arranged in the latch cavity 12 and can slide out and retract into the latch cavity 12. The top of the one-way latch 16 is provided with a latching part 161 matched with the ratchet structure 21, wherein the latching part 161 is consistent with the inclination direction of the ratchet structure 21, so that the one-way latch 16 can only move upward and cannot move downward in the engaged state (the state of being driven to extend out of the latch cavity 12 and being engaged with the ratchet structure 21). The first return spring 17 is used to provide the elastic force required for the one-way latch 16 to retract into the latch cavity 12, and one end of the first return spring 17 is fixed to the inner wall of the latch cavity 12, and the other end is connected with the one-way latch 16.

[0027] During the water level rising process, the first opening 15 is gradually submerged, and the gas sealed in the driving cavity 13 is compressed by the rising water level, the air pressure in the driving cavity 13 and the latch cavity 12 increases, and the one-way latch 16 extends out of the latch cavity 12 under the action of the air pressure to overcome the elastic force of the first return spring 17, so that the latching part 161 is engaged with the ratchet structure 21. After the water level contacts the floating plate 4, the floating plate 4 provides sufficient buoyancy for the guardrail 1 to drive the guardrail 1 to rise. Similar to a ratchet mechanism, when the guardrail 1 floats with the water level, the one-way latch 16 can move upward relative to the ratchet structure 21 and cannot move downward, so that the guardrail 1 cannot move downward. Therefore, when a pedestrian supports the guardrail 1, the guardrail 1 will not sink, and the guardrail 1 can provide stable support for the pedestrian. After the water level drops, the air pressure in the driving cavity 13 gradually decreases, the driving cavity 13 expands, the first return spring 17 drives the one-way latch 16 to retract, and the one-way latch 16 is disengaged from the ratchet structure 21. At this time, the guardrail 1 can be reset with the water level. In actual application, the position of the one-way latch 16 can be set higher than the floating plate 4, so that when the one-way latch 16 retracts and resets, the floating plate 4 has not completely floated out of the water surface and can still provide buoyancy for the guardrail 1, avoiding the weight of the guardrail 1 pressing down to cause excessive friction between the latching part 161 and the ratchet structure 21, so that the one-way latch 16 cannot smoothly retract and reset. The contact surface between the latching part 161 and the ratchet structure 21 can also be provided with a ball structure to reduce the friction resistance. Through the cooperation of the floating plate 4 and the latch mechanism, the guardrail 1 can automatically adjust the height of the guardrail 1 according to the water level change, ensure that the guardrail 1 is always in the best protection position, and keep the guardrail 1 locked and unable to move downward during the supporting process of the pedestrian, so as to provide stable support for the pedestrian and achieve better safety protection effect.

[0028] In the non-flood season, the guardrail 1 is in the lowered state, if the guardrail 1 is freely movable, pedestrians may accidentally pull the guardrail 1 to make it rise and fall, and the area between the guardrail 1 and the base 3 is prone to cause the limbs of pedestrians to be pinched or bruised, and there is a certain safety hazard. Figure 7 As shown, the guardrail 1 is provided with a locking hole 22, and the locking hole 22 of the embodiment is located on the inner wall of the guardrail 1. The support column 2 is provided with a locking mechanism, which includes a locking cavity 23, a locking pin 25, a floating top pin 26 and a second reset spring 27. The locking cavity 23 of the embodiment is located at the bottom of the support column 2, and the locking pin 25 is arranged in the locking cavity 23 and can be slidably inserted into and withdrawn from the locking hole 22. The floating top pin 26 is used to drive the locking pin 25 to withdraw from the locking hole 22, and the floating top pin 26 is arranged in the locking cavity 23 and can rise and fall with the water level. Figure 8 As shown, the floating top pin 26 and the locking pin 25 are driven by the inclined surface. The bottom of the locking cavity 23 is provided with a second opening 24 for water to enter the locking cavity 23 to provide buoyancy for the floating top pin 26. One end of the second reset spring 27 is fixed to the inner wall of the locking cavity 23, and the other end is connected with the locking pin 25.

[0029] Initially, the locking pin 25 is kept inserted into the locking hole 22 under the action of the second reset spring 27, and the guardrail 1 is locked so that it cannot move. When the water level rises, water enters the locking cavity 23 through the second opening 24, and the floating top pin 26 moves upward under the action of buoyancy. The floating top pin 26 drives the locking pin 25 to withdraw from the locking hole 22, thereby achieving automatic unlocking of the guardrail 1. When the water level falls, the floating top pin 26 falls with the water level, and the second reset spring 27 pushes the locking pin 25 to reset and insert into the locking hole 22, thereby relocking the guardrail 1. By arranging the locking mechanism, when the guardrail 1 is not raised, the locking pin 25 is inserted into the locking hole 22 on the guardrail 1 to firmly lock the guardrail 1, thereby preventing pedestrians from being pinched or bruised by the guardrail 1 due to accidental pulling of the guardrail 1. Through the cooperation of the floating top pin 26 and the second opening 24, the locking mechanism can be automatically unlocked according to the change of the water level.

[0030] The first opening 15 and the second opening 24 of the embodiment are each provided with a filter screen. In an environment where the water level changes frequently, the water usually contains impurities such as mud, leaves and branches. The filter screen can prevent these impurities from entering the locking pin cylinder 11 and the locking cavity 23 through the first opening 15 and the second opening 24, thereby reducing wear and tear, protecting the internal mechanism and prolonging the service life of the locking pin mechanism and the locking mechanism. At the same time, the design of the filter screen can simplify the maintenance process of the locking pin cylinder 11 and the locking cavity 23, and only needs to be cleaned and replaced regularly.

[0031] As shown, Figure 6As shown, the engaging part 161 is hinged to the top of the one-way pin 16. When the engaging part 161 is in the initial position, the bottom of the engaging part 161 abuts against the top of the one-way pin 16 and cannot be flipped upward. During the rising process of the guardrail 1, the engaging part 161 can be automatically adjusted by being flipped downward, so that the engaging part 161 and the toothed structure 21 can be more smoothly engaged during the rising process of the guardrail 1, the problem of jamming caused by angle deviation is avoided, and the stability and reliability of the engaging part 161 and the toothed structure 21 during engagement are improved.

[0032] In combination Figures 7-8 The locking mechanism further comprises an unlocking pull rod 28 for manually unlocking the locking pin 25. The bottom of the unlocking pull rod 28 is fixedly connected with the locking pin 25, and the top of the unlocking pull rod 28 penetrates through the locking cavity 23 and is arranged outside. The design of the unlocking pull rod 28 enables the locking mechanism to have a manual unlocking function. When the automatic unlocking function fails or emergency unlocking is needed, the locking pin 25 can be manually withdrawn by pulling the unlocking pull rod 28, so that the guardrail 1 can still be normally operated in special circumstances, and the reliability of the protective fence is improved. At the same time, by pulling the unlocking pull rod 28, the movement state of the locking pin 25 can be quickly checked, and whether the mechanism is working normally can be judged, thereby providing a convenient operation mode for the maintenance personnel. The unlocking pull rod 28 of the embodiment is further provided with a pull ring 281, and the pull ring 281 is rotatably connected with the unlocking pull rod 28. The maintenance personnel can more conveniently pull the unlocking pull rod 28 through the pull ring 281. In addition, the pull ring 281 can also be provided in other special forms, for example, the pull ring 281 is detachably connected with the unlocking pull rod 28, which is similar to the form of a key-type faucet. In this way, a special tool is needed to manually unlock, so that the unlocking pull rod 28 can be prevented from being pulled at will by irrelevant personnel, and the safety of the unlocking pull rod 28 is improved.

[0033] It should be pointed out that the embodiment mainly exemplarily illustrates the floating type pedestrian protective fence composed of one guardrail 1 and two support posts 2. In actual application, appropriate lengths and numbers of guardrails 1 and support posts 2 should be set to be combined.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the protection scope of the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the essence and scope of the technical solutions of the present application.

Claims

1. A floating type pedestrian protection fence, comprising a guardrail, a support column, a base and a floating plate, the base is fixed on the ground, the support column is fixedly connected with the base, the guardrail is slidingly connected with the support column to be able to move up and down relative to the support column, and the floating plate is located at the bottom of the guardrail, characterized in that, The post is provided with a latch structure, the guardrail is provided with a bayonet mechanism, after the guardrail floats up with the rising of water surface, the bayonet mechanism and the latch structure are engaged to make the guardrail unable to move downward relative to the post, and after the water surface falls, the bayonet mechanism and the latch structure are disengaged to make the guardrail able to move downward relative to the post to reset.

2. The floating pedestrian guardrail of claim 1, wherein, The bayonet mechanism comprises: The bayonet cylinder is internally provided with a bayonet cavity, a driving cavity and a connecting channel, the bayonet cavity and the driving cavity are communicated through the connecting channel, and the driving cavity is provided with a downward first opening; The one-way bayonet is arranged in the bayonet cavity and can slide out and retract from the bayonet cavity, and the top of the one-way bayonet is provided with a latching part matched with the latch structure; The first reset spring is used to provide the elastic force required for the retraction of the one-way bayonet into the bayonet cavity, one end of the first reset spring is fixed to the inner wall of the bayonet cavity, and the other end of the first reset spring is connected with the one-way bayonet.

3. The floating pedestrian guardrail of claim 1, wherein, The guardrail is provided with a locking hole, and the post is provided with a locking mechanism, the locking mechanism comprises: The locking cavity is provided with a second opening at the bottom; The locking bolt is used to be inserted into the locking hole, and is arranged in the locking cavity and can slide into and out of the locking hole; The floating top pin is used to drive the locking bolt to exit the locking hole, and is arranged in the locking cavity and can rise and fall with the water level, the floating top pin and the locking bolt are driven through the inclined surface; The second reset spring is fixed to the inner wall of the locking cavity at one end, and is connected with the locking bolt at the other end.

4. The floating pedestrian guardrail of claim 2, wherein, The first opening is provided with a filter screen.

5. The floating pedestrian guardrail of claim 3, wherein, The second opening is provided with a filter screen.

6. The floating pedestrian guardrail of claim 2, wherein, The latching part is hinged to the top of the one-way bayonet.

7. The floating pedestrian guardrail of claim 3, wherein, The locking mechanism further comprises an unlocking pull rod for manually unlocking the locking bolt, the bottom of the unlocking pull rod is fixedly connected with the locking bolt, and the top of the unlocking pull rod penetrates through the locking cavity and is arranged outside.

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