Hole cover plate capable of guaranteeing safety

Abstract

The invention discloses a hole cover plate capable of guaranteeing safety, which comprises a cover plate and a track positioned at the top of a hole, and the cover plate is in sliding connection with the track; the plugging unit is located in the hole and comprises a first extension ladder and a second extension ladder which are arranged up and down, and the first extension ladder and the second extension ladder stretch and slide; the control mechanism is respectively connected with the first extension ladder and the second extension ladder and is used for driving the second extension ladder to extend and retract relative to the first extension ladder, or the control mechanism is used for driving the first extension ladder and the second extension ladder to horizontally overturn to block the hole; the control mechanism is matched with the first extension ladder and the second extension ladder to open and close the hole, so that the first extension ladder and the second extension ladder can serve as temporary obstacles to prevent irrelevant people from falling from or entering the hole, and safety is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hole cover plates, and more particularly to a hole cover plate that ensures safety. BACKGROUND

[0002] A fire pool is an artificial water storage facility for fixed or mobile fire pump water suction. A hole is usually provided on the top plate of the fire pool, and a cover plate is placed at the hole opening for maintenance manhole use. Personnel enter the fire pool through a ladder for regular maintenance and cleaning. In actual engineering, this method has many hidden dangers. Unrelated personnel can easily lift the cover plate or the cover plate may fall off, causing unrelated personnel to enter or fall into the fire pool. Therefore, a hole cover plate that ensures safety and still blocks unrelated personnel from entering the hole after the cover plate is improperly opened is needed.

[0003] In view of the above reasons, how to still block unrelated personnel from entering the hole after the cover plate is improperly opened is a problem considered by the present application. SUMMARY

[0004] In view of the deficiencies of the prior art, a hole cover plate that ensures safety is provided. The device still blocks unrelated personnel from entering the hole after the cover plate is improperly opened.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0006] A hole cover plate that ensures safety comprises:

[0007] A cover plate and a track, a mounting surface is formed at the top of the hole, the track is provided corresponding to the mounting surface, and the cover plate is slidably connected with the track.

[0008] A blocking unit located in the hole, the blocking unit comprises a first telescopic ladder and a second telescopic ladder arranged in an up-down manner, and the first telescopic ladder and the second telescopic ladder are telescopically slid.

[0009] A control mechanism, the control mechanism is connected with the first telescopic ladder and the second telescopic ladder respectively, and the control mechanism is used to drive the second telescopic ladder to telescopically slide relative to the first telescopic ladder, or the control mechanism is used to drive the first telescopic ladder and the second telescopic ladder to horizontally flip to block the hole.

[0010] As a further improvement of the present application, the control mechanism comprises a power source and a traction rope, one end of the first telescopic ladder is rotatably connected with the inner wall of the hole, the first telescopic ladder and the second telescopic ladder are both provided with corresponding channels along the length direction, one end of the traction rope is connected with the power source, the other end of the traction rope passes through the channels and is connected with the second telescopic ladder, and the power source is used to drive the traction rope to be retracted or extended so as to control the telescopic sliding of the second telescopic ladder relative to the first telescopic ladder.

[0011] As a further improvement of the present application, when the telescopic amount of the second telescopic ladder relative to the first telescopic ladder is the minimum, the second telescopic ladder pulls the first telescopic ladder through the traction rope to keep the relative position with the first telescopic ladder, and at this time, the power source drives the first telescopic ladder and the second telescopic ladder to rotate simultaneously by pulling the traction rope.

[0012] As a further improvement of the present application, the blocking unit is arranged at one end of the track, the bottom of the track is provided with a first blocking piece which can slide along the length direction of the track, the bottom of the track is further provided with the linkage mechanism which is used to connect the first blocking piece and the cover plate, the cover plate drives the first blocking piece to move towards the direction opposite to the moving direction of the cover plate through the linkage mechanism, and the second telescopic ladder or the first telescopic ladder is provided with a second blocking piece which is used to cooperate with the first blocking piece to limit the rotation of the first telescopic ladder and the second telescopic ladder.

[0013] As a further improvement of the present application, the linkage mechanism comprises a spring and a fifth pulley, the fifth pulley is rotatably connected with the track, the bottom of the cover plate is connected with a connecting rope, one end of the connecting rope away from the cover plate is wound around the fifth pulley and connected with the first blocking piece, and the spring is connected with the first blocking piece and the track at two ends and is used to drive the first blocking piece to move away from the cover plate.

[0014] As a further improvement of the present application, the first blocking piece and the second blocking piece both comprise a clamping part in the shape of L, when the first telescopic ladder and the second telescopic ladder are turned to a horizontal angle, the two clamping parts correspond to each other, and the cover plate drives the first blocking piece to move through the connecting rope so that the two clamping parts are clamped to each other.

[0015] As a further improvement of the present application, the bottom of the cover plate is provided with a first elastic piece, the first barb is connected with the first elastic piece, the inner wall of the hole is provided with a hanging hole which is used to hang the first barb, and one end of the connecting rope is connected with the first barb.

[0016] As a further improvement of the present application, the track is provided with a hook mechanism at one end away from the control mechanism for fixing the position of the cover plate relative to the track.

[0017] As a further improvement of the present application, the hook mechanism comprises a mounting base and a first barb, the mounting base is fixedly connected with the track, the first barb is pivotally connected with the mounting base at the middle section, the cover plate is provided with a receiving cavity corresponding to the second barb and a horizontal rod arranged in the receiving cavity for hanging the second barb, the second barb is provided with a pedal at one end away from the cover plate, and the mounting base is provided with a second elastic member, the two ends of the second elastic member are respectively connected with the mounting base and the pedal and used for driving the pedal back to the original position.

[0018] As a further improvement of the present application, the control mechanism further comprises a lockable flip cover, which is arranged at the top of the power source.

[0019] The present application has the following advantages:

[0020] 1. The opening and closing of the hole are realized by the control mechanism cooperating with the first and second ladders, so that the first and second ladders can be used as temporary barriers to prevent irrelevant people from falling or entering the hole, thereby ensuring safety.

[0021] 2. The first and second ladders can also be prevented from being corroded by being immersed in water for a long time by being horizontally placed in the hole by rotating. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a perspective view of a hole cover plate for ensuring safety.

[0023] Figure 2 It is a sectional view of the first barb and its peripheral components.

[0024] Figure 3 It is a sectional view of the cover plate and its peripheral components.

[0025] Figure 4 It is a sectional view of the control mechanism and its peripheral components.

[0026] Figure 5 It is a sectional view of the hook mechanism and its peripheral components.

[0027] Reference signs: 1, cover plate; 2, track; 3, blocking unit; 4, first extension ladder; 5, second extension ladder; 6, control mechanism; 7, power source; 8, traction rope; 9, passage; 10, flip cover with lock; 11, guide rail; 12, first pulley; 13, second pulley; 14, third pulley; 15, fourth pulley; 16, first blocking piece; 17, linkage mechanism; 18, second blocking piece; 19, spring; 20, fifth pulley; 21, connecting rope; 22, clamping part; 23, first elastic piece; 24, first barb; 25, hanging hole; 26, hook claw mechanism; 27, mounting seat; 28, second barb; 29, accommodating cavity; 30, crossbar; 31, pedal; 32, second elastic piece. DETAILED DESCRIPTION

[0028] The application will be further described in detail below with reference to the drawings and examples. Identical parts are denoted by identical reference signs.

[0029] Reference Figures 1-5 As shown in the drawings, a safety-ensuring hole cover plate 1 comprises a cover plate 1 and a track 2, a mounting surface is formed at the top of the hole, the track 2 is arranged corresponding to the mounting surface, and the cover plate 1 is in sliding connection with the track 2, so that the cover plate 1 can be moved above the hole to block the hole, or the cover plate 1 can be moved to the end of the track 2 away from the hole, so that the hole above is in an open state to facilitate personnel to enter the hole for maintenance.

[0030] Further, a blocking unit 3 is arranged in the hole, the blocking unit 3 comprises a first extension ladder 4 and a second extension ladder 5 arranged in an up-down manner, and the first extension ladder 4 and the second extension ladder 5 are in telescopic sliding, in this embodiment, the second extension ladder 5 slides relative to the first extension ladder 4, so that the overlapping area of the first extension ladder 4 and the second extension ladder 5 is adjusted by the sliding of the second extension ladder 5, to adjust the overall length of the blocking unit 3.

[0031] Further, a control mechanism 6 is arranged, the control mechanism 6 is connected with the first extension ladder 4 and the second extension ladder 5 respectively, and the control mechanism 6 is used to drive the second extension ladder 5 to telescope relative to the first extension ladder 4, or the control mechanism 6 is used to drive the first extension ladder 4 and the second extension ladder 5 to horizontally flip to block the hole.

[0032] In the non-maintenance state, at this time, the cover plate 1 corresponds to the hole, so that the hole above is blocked by the cover plate 1, and at the same time, the control mechanism 6 is used to expand the overlapping area of the first extension ladder 4 and the second extension ladder 5, that is, to reduce the overall length of the blocking unit 3, and to drive the first extension ladder 4 and the second extension ladder 5 to rotate, so as to block the hole again, at this time, the cover plate 1 and the blocking unit 3 are arranged in an up-down manner along the hole, even if the cover plate 1 above is damaged, the first extension ladder 4 and the second extension ladder 5 can also be used as a temporary blocking object to block the hole, to avoid irrelevant personnel from falling, and to improve safety.

[0033] In the maintenance state, the cover plate 1 is moved to the end of the track 2 away from the hole, and the first and second extension ladders 4 and 5 are rotated by the control mechanism 6, so that the hole is in an open state, and after the operator enters the inside of the hole, the first and second extension ladders 4 and 5 are rotated by the control mechanism 6, so that the hole is temporarily blocked, thereby avoiding the falling of irrelevant personnel.

[0034] Preferably, the control mechanism 6 comprises a power source 7 and a traction rope 8, the power source 7 is arranged corresponding to the inside of the hole, one end of the first extension ladder 4 away from the second extension ladder 5 is rotatably connected with the inner wall of the hole, specifically, the inner wall of the hole is provided with a rotating seat and is rotatably connected with one end of the first extension ladder 4 away from the second extension ladder 5, the first and second extension ladders 4 and 5 are both provided with corresponding channels 9 along the length direction, and the rotating seat is also provided with a passage communicating with the channels 9, one end of the traction rope 8 is connected with the power source 7, the other end passes through the passage and the channels 9 and is connected with the second extension ladder 5, and the power source 7 is used to drive the traction rope 8 to be wound and unwound, so as to control the sliding extension of the second extension ladder 5 relative to the first extension ladder 4.

[0035] Specifically, the power source 7 is any rotating member driven by a motor in the prior art, one end of the traction rope 8 is wound and fixed on the rotating member, and the traction rope 8 is wound and unwound by rotating the rotating member.

[0036] Further, the control mechanism 6 further comprises a lockable flip cover 10, the lockable flip cover 10 is arranged corresponding to the top of the power source 7, so that the operator can conveniently maintain the power source 7 through the lockable flip cover 10.

[0037] Specifically, the first extension ladder 4 is fixedly connected with a guide rail 11 arranged in parallel with the first extension ladder 4, and the second extension ladder 5 is sleeved on the guide rail 11, so as to realize the extension and sliding of the second extension ladder 5 relative to the first extension ladder 4.

[0038] Specifically, the rotating seat is rotatably connected with a first pulley 12 for changing the extension direction of the traction rope 8, and the first extension ladder 4 rotates around the first pulley 12, the first extension ladder 4 is rotatably connected with a second pulley 13 at the top for changing the extension direction of the traction rope 8 and making it extend towards the guide rail 11, and the guide rail 11 is rotatably connected with a third pulley 14 and a fourth pulley 15 at the top end for changing the extension direction of the traction rope 8 and making it extend towards the second extension ladder 5.

[0039] The first extension ladder 4 rotates around the first pulley 12, and the second pulley 13 also rotates around the first pulley 12 towards the upper direction during rotation. Therefore, the traction rope 8 is arranged below the first pulley 12, the extension direction of the traction rope 8 is changed by the second pulley 13 and extends to the third pulley 14. Since the guide rail 11 is arranged in parallel with the first extension ladder 4, and the second extension ladder 5 is sleeved on the guide rail 11, the fourth pulley 15 is further arranged to change the extension direction of the traction rope 8 to the inside of the guide rail 11, and finally fixedly connected with the second extension ladder 5.

[0040] Specifically, when the extension amount of the second extension ladder 5 relative to the first extension ladder 4 is the minimum value, that is, the overlapping area of the second extension ladder 5 and the first extension ladder 4 is the maximum, the second extension ladder 5 pulls the first extension ladder 4 through the traction rope 8 to keep the relative position with the first extension ladder 4. At this time, the power source 7 pulls the first extension ladder 4 and the second extension ladder 5 to rotate at the same time by pulling the traction rope 8.

[0041] Preferably, the blocking unit 3 is arranged at one end of the track 2, the first blocking piece 16 is arranged at the bottom of the track 2 and can slide along the length direction of the track 2, the linkage mechanism 17 is further arranged at the bottom of the track 2 and used to connect the first blocking piece 16 and the cover plate 1, the cover plate 1 drives the first blocking piece 16 to move towards the direction opposite to the moving direction of the cover plate 1 through the linkage mechanism 17, the second blocking piece 18 is arranged on the first extension ladder 4 or the second extension ladder 5 and used to cooperate with the first blocking piece 16 to limit the rotation of the first extension ladder 4 and the second extension ladder 5. Specifically, in this embodiment, the second blocking piece 18 is arranged at the end of the second extension ladder 5 away from the first extension ladder 4.

[0042] The cover plate 1, the linkage mechanism 17, the first blocking piece 16 and the second blocking piece 18 can be used to limit and fix the position of the first extension ladder 4 and the second extension ladder 5.

[0043] Specifically, the linkage mechanism 17 includes the spring 19 and the fifth pulley 20, the fifth pulley 20 is rotationally connected with the track 2, the connecting rope 21 is connected with the bottom of the cover plate 1, one end of the connecting rope 21 away from the cover plate 1 is wound around the fifth pulley 20 and connected with the first blocking piece 16, and the spring 19 is connected with the first blocking piece 16 and the track 2 at two ends and used to drive the first blocking piece 16 to move away from the cover plate 1.

[0044] When the cover plate 1 moves towards the control mechanism 6, the first blocking piece 16 is driven to move away from the control mechanism 6 through the connecting rope 21, so that the spring 19 obtains elastic force.

[0045] When the cover plate 1 moves away from the control mechanism 6, the first blocking piece 16 is driven to move towards the control mechanism 6 through the elastic force of the spring 19.

[0046] Specifically, the first blocking piece 16 and the second blocking piece 18 each comprise a clamping portion 22 in the shape of L, when the first extension ladder 4 and the second extension ladder 5 are flipped to a horizontal angle, the two clamping portions 22 correspond to each other, the cover plate 1 drives the first blocking piece 16 to move through the connecting rope 21 to make the two clamping portions 22 clamp to each other.

[0047] When the cover plate 1 is away from the control mechanism 6, at this time the first blocking piece 16 is located at one end close to the control mechanism 6, further pulling the traction rope 8 by the power source 7 to drive the first extension ladder 4 and the second extension ladder 5 to rotate, and make the first extension ladder 4 and the second extension ladder 5 to be transversely placed, at this time the first blocking piece 16 and the second blocking piece 18 correspond to each other, then the control mechanism 6 moves to the direction of the control mechanism 6, thereby blocking the hole, at this time due to the movement of the cover plate 1, the first blocking piece 16 moves to the direction of the second blocking piece 18, thereby the first blocking piece 16 and the second blocking piece 18 cooperate with each other to realize the limiting and fixing of the first extension ladder 4 and the second extension ladder 5, so that the first extension ladder 4 and the second extension ladder 5 can block the irrelevant person from falling or entering the hole as a temporary blocking object, thereby ensuring safety.

[0048] Further, the bottom of the cover plate 1 is provided with a first elastic piece 23 and a first barb 24 connected through the first elastic piece 23, the inner wall of the hole is provided with a hanging hole 25 corresponding to the first barb 24 for hanging the first barb 24, one end of the connecting rope 21 is connected with the first barb 24, specifically, the hanging hole 25 is located in the space where the power source 7 is located, so that the operator can open the corresponding space through the lockable cover 10 to disengage the first barb 24 from the hanging hole 25.

[0049] Specifically, the first elastic piece 23 is an elastic block made of rubber material.

[0050] The first barb 24 can move slightly around the elastic piece, so it can swing slightly to be hung on the hanging hole 25, thereby fixing the position of the cover plate 1, if the cover plate 1 needs to be moved, only need to open the control mechanism 6 and push the first barb 24 downward, so that the first barb 24 is no longer hooked on the inner wall of the control mechanism 6 and exits the control mechanism 6.

[0051] Through the setting of the first elastic piece 23, when the cover plate 1 is damaged, only the elastic piece will be broken, after the breakage, the first barb 24 is still hooked on the inner wall of the control mechanism 6, thereby maintaining the limiting function of the first extension ladder 4 and the second extension ladder 5.

[0052] Preferably, the end of the track 2 away from the control mechanism 6 is provided with a hook mechanism 26 for fixing the position of the cover plate 1 relative to the track 2.

[0053] Specifically, the hook mechanism 26 comprises a mounting base 27 and a second barb 28, the mounting base 27 is fixedly connected with the track 2, the middle section of the second barb 28 is rotationally connected with the mounting base 27, the cover plate 1 is provided with a receiving cavity 29 corresponding to the second barb 28 and is provided with a horizontal rod 30 in the receiving cavity 29 for hanging the second barb 28, the second barb 28 is provided with a pedal 31 at an end away from the cover plate 1, the mounting base 27 is provided with a second elastic member 32, the two ends of the second elastic member 32 are respectively connected with the mounting base 27 and the pedal 31 and are used for driving the pedal 31 to return, and the second elastic member 32 is preferably a spring 19.

[0054] When the cover plate 1 moves to a position away from the control mechanism 6, in order to prevent the cover plate 1 from automatically moving to block the hole, the hook mechanism 26 is arranged to fix the position of the cover plate 1 at this time, since the second barb 28 can rotate, when the cover plate 1 approaches the mounting base 27, the second barb 28 will abut against the horizontal rod 30, then the second hook generates vertical movement and makes the second spring 19 deform, after the second barb 28 hooks the horizontal rod 30, the second spring 19 will restore and make the second barb 28 not generate vertical movement, thereby fixing the position of the cover plate 1, when it is needed to release the cover plate 1, only the pedal 31 needs to be pressed, so that the second barb 28 generates vertical movement, thereby making the horizontal rod 30 disengage from the second barb 28.

[0055] The above is only the preferred embodiment of the present application, the protection scope of the present application is not limited to the above-mentioned embodiment, any technical scheme belonging to the idea of the present application is within the protection scope of the present application. It should be noted that, for ordinary skilled in the art, some improvements and decorations without departing from the principle of the present application are also considered as the protection scope of the present application.

Claims

1. A hole cover plate for ensuring safety, characterized in that: include: The cover plate (1) and the track (2) have a mounting surface formed on the top of the hole, the track (2) is arranged corresponding to the mounting surface, and the cover plate (1) and the track (2) are slidably connected; A blocking unit (3) located in the hole, the blocking unit (3) comprising a first telescopic ladder (4) and a second telescopic ladder (5) arranged vertically, the first telescopic ladder (4) and the second telescopic ladder (5) being telescopically slidable; A control mechanism (6) is connected to the first telescopic ladder (4) and the second telescopic ladder (5) respectively, and is used to drive the second telescopic ladder (5) to extend and retract relative to the first telescopic ladder (4), or to drive the first telescopic ladder (4) and the second telescopic ladder (5) to flip horizontally to block the hole.

2. A hole cover plate for ensuring safety according to claim 1, characterized in that: The control mechanism (6) includes a power source (7) and a traction rope (8); one end of the first telescopic ladder (4) away from the second telescopic ladder (5) is rotatably connected to the inner wall of the hole; the first telescopic ladder (4) and the second telescopic ladder (5) are both provided with corresponding channels (9) along the length direction; one end of the traction rope (8) is connected to the power source (7), and the other end passes through the channel (9) and is connected to the second telescopic ladder (5); the power source (7) is used to drive the traction rope (8) to be retracted and extended, so as to control the sliding and extension of the second telescopic ladder (5) relative to the first telescopic ladder (4).

3. A hole cover plate for ensuring safety according to claim 2, characterized in that: When the extension amount of the second telescopic ladder (5) relative to the first telescopic ladder (4) is at a minimum, the second telescopic ladder (5) pulls the first telescopic ladder (4) via the traction rope (8) to maintain a relative position with the first telescopic ladder (4); at this time, the power source (7) pulls the traction rope (8) to cause the first telescopic ladder (4) and the second telescopic ladder (5) to rotate simultaneously.

4. The hole cover plate for ensuring safety according to claim 1, characterized in that: The blocking unit (3) is arranged corresponding to one end of the track (2); a first blocking member (16) is provided at the bottom of the track (2) and is slidable along the length direction of the track (2); a linkage mechanism (17) is also provided at the bottom of the track (2) for connecting the first blocking member (16) and the cover plate (1); the cover plate (1) drives the first blocking member (16) to move in a direction opposite to the movement direction of the cover plate (1) through the linkage mechanism (17); a second blocking member (18) is provided on the first telescopic ladder (4) or the second telescopic ladder (5); the second blocking member (18) is used to cooperate with the first blocking member (16) to limit the rotation of the first telescopic ladder (4) and the second telescopic ladder (5).

5. A hole cover plate for ensuring safety according to claim 4, characterized in that: The linkage mechanism (17) includes a spring (19) and a fifth pulley (20), the fifth pulley (20) is rotatably connected to the track (2), a connecting rope (21) is connected to the bottom of the cover plate (1), an end of the connecting rope (21) away from the cover plate (1) passes around the fifth pulley (20) and is connected to the first blocking member (16), and the two ends of the spring (19) are respectively connected to the first blocking member (16) and the track (2) and are used to drive the first blocking member (16) to move in a direction away from the cover plate (1).

6. The hole cover plate for ensuring safety according to claim 5, characterized in that: The first blocking member (16) and the second blocking member (18) both include an L-shaped clamping portion (22). When the first telescopic ladder (4) and the second telescopic ladder (5) are flipped to a horizontal angle, the two clamping portions (22) correspond to each other, and the cover plate (1) drives the first blocking member (16) to move via the connecting rope (21) so that the two clamping portions (22) are clamped to each other.

7. The hole cover plate for ensuring safety according to claim 5, characterized in that: The bottom of the cover plate (1) is provided with a first elastic member (23) and is connected to the first barb (24) via the first elastic member (23); the inner wall of the hole is provided with a hanging hole (25) corresponding to the first barb (24) for hanging the first barb (24); one end of the connecting rope (21) is connected to the first barb (24).

8. The hole cover plate for ensuring safety according to claim 1, characterized in that: An end of the track (2) away from the control mechanism (6) is provided with a hook mechanism (26) for fixing the position of the cover plate (1) relative to the track (2).

9. The hole cover plate for ensuring safety according to claim 8, characterized in that: The hook mechanism (26) comprises a mounting seat (27) and a first hook (24), the mounting seat (27) is fixedly connected to the track (2), the middle section of the first hook (24) is rotatably connected to the mounting seat (27), the cover plate (1) is provided with a receiving cavity (29) corresponding to the second hook (28), and a cross bar (30) for hanging with the second hook (28) is provided in the receiving cavity (29), the second hook (28) is provided with a pedal (31) at one end away from the cover plate (1), and a second elastic member (32) is provided on the mounting seat (27), the two ends of the second elastic member (32) are respectively connected to the mounting seat (27) and the pedal (31) and used to drive the pedal (31) to return to its original position.

10. The hole cover plate for ensuring safety according to claim 2, characterized in that: The control mechanism (6) further comprises a lockable flip cover (10), and the lockable flip cover (10) is arranged corresponding to the top of the power source (7).

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