A control device for an escape opening well cover of an underground comprehensive pipe gallery

Abstract

The utility model relates to control device technical field, concretely is a kind of control device of underground comprehensive pipe gallery escape port well lid, including support frame, personnel entrance and exit are set in the support frame, the utility model is separated from well lid by bolt and makes electric push rod output end, then the lock hole is unlocked by key, makes operation window open, then by limit rod in the limit slot sliding and rotating to guide slot, make locating rod synchronous in movable bin and socket sliding rotation, the restoring force of spring drives locating rod to slide into movable bin from socket at this moment, to reach the purpose of unlocking well lid, can make user from personnel entrance and exit inside and personnel entrance and exit outside can unlock and lock the purpose of well lid, make electric push rod still can normally open and close under the condition of power failure, and further solve the problem that escape port well lid is jammed due to power failure, will directly block escape path, seriously threaten the life safety of trapped personnel.

Description

Technical Field

[0001] This utility model relates to the field of control device technology, specifically a control device for an escape hatch cover in an underground utility tunnel. Background Technology

[0002] In today's rapidly urbanizing world, underground utility tunnels, as a crucial component of urban infrastructure, play a vital role in the centralized storage of various pipelines, including those for electricity, communications, gas, and water supply and drainage. Their safe and stable operation is directly related to the normal functioning of the city and the safety of residents' lives and property. Because these tunnels are located in an enclosed underground environment, in the event of emergencies such as fires, pipeline leaks, or structural collapses, the provision of convenient and reliable escape routes is paramount to ensure the rapid and safe evacuation of internal inspection and maintenance personnel. The performance of the control devices on the escape route manhole covers, as key components for opening and closing escape routes, directly impacts escape efficiency and safety.

[0003] Most commercially available control devices for escape hatch covers in underground utility tunnels rely on electric drive systems to open and close the covers. While these devices can meet daily opening and closing needs under normal power supply conditions, they often fail to open or close in the event of a sudden power outage due to the loss of power. In the event of an emergency inside the utility tunnel, a power system failure is highly likely. If the escape hatch cover becomes stuck due to power failure, it will directly block the escape route, seriously threatening the lives of trapped personnel. Therefore, we propose a control device for escape hatch covers in underground utility tunnels. Utility Model Content

[0004] The purpose of this utility model is to provide a control device for the escape hatch cover of an underground utility tunnel, so as to solve the problems mentioned in the background art.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A control device for an escape hatch cover in an underground utility tunnel includes a support frame with a personnel entrance / exit within it. A window hinge is fixedly connected to the support frame at the top of the personnel entrance / exit. The hatch cover is rotatably connected to the support frame via the window hinge. Two sets of electric actuators are fixedly connected to the inner wall of the support frame, and the output ends of the electric actuators are fixedly connected to the hatch cover via bolts. A locking assembly is provided within the support frame.

[0007] The locking assembly includes a movable chamber fixedly connected to the inner wall of the support frame, a spring fixedly connected inside the movable chamber, a positioning rod slidably connected inside the movable chamber, a socket fixedly connected to the bottom of the manhole cover, the positioning rod slidably connected to the socket, two guide grooves symmetrically opened on the outer wall of the movable chamber, two sets of limiting grooves symmetrically opened on the inner wall of each of the two guide grooves, a limiting rod fixedly connected to the outer wall of the positioning rod in each guide groove, the limiting rod rotatably connected to the limiting groove, and a through hole opened on the surface of the support frame above the movable chamber.

[0008] Preferably, the surface of the support frame above the active compartment has a through hole, and an operation window is rotatably connected to the top of the support frame. The operation window covers the through hole and has a lock hole for unlocking the operation window.

[0009] Preferably, a protective rubber strip is provided at the connection between the manhole cover and the window hinge, and the waterproof rubber strip is fixedly connected to the window hinge.

[0010] Preferably, the top of the support frame is designed with a slope, and the slope design is used to drain rainwater from the top of the support frame.

[0011] Preferably, the inner wall of the support frame is provided with an ejection assembly, which includes a slide cylinder fixedly connected to the inner wall of the support frame. A rack is slidably connected inside the slide cylinder, and the top of the rack is in contact with the manhole cover. Two sets of fixing plates are fixedly connected to the left side surface of the slide cylinder. Gears are rotatably connected inside the fixing plates. The gears mesh with the rack. A ratchet is fixedly connected to the rear end of the gear. The ratchet rotates coaxially with the gear. A rocker arm is fixedly connected to the rear end of the ratchet. A connecting post is fixedly connected to the rear end of the slide cylinder. A pawl is rotatably connected to the connecting post. A torsion spring is sleeved between the connecting post and the pawl. The torsion spring applies a torque toward the ratchet to the pawl.

[0012] Preferably, the rocker arm is cylindrical in shape, and the surface of the rocker arm is covered with an anti-slip rubber sleeve.

[0013] Preferably, the manhole cover is made of 3mm stainless steel reinforced plate, and tempered glass is fixedly connected to the middle of the manhole cover.

[0014] The beneficial effects of this utility model are:

[0015] 1. This utility model separates the output end of the electric push rod from the manhole cover using bolts, then unlocks the lock hole with a key to open the operating window. Next, the limiting rod slides and rotates in the limiting groove and then into the guide groove, causing the positioning rod to slide and rotate within the movable chamber and socket. At this time, the restoring force of the spring drives the positioning rod to slide from the socket into the movable chamber, thereby achieving the purpose of unlocking the manhole cover. At the same time, the design of two sets of limiting rods and limiting grooves allows users to unlock and lock the manhole cover from both inside and outside the personnel entrance / exit. This ensures that the electric push rod can still open and close normally even in the event of a power outage, thus solving the problem of escape hatch manhole covers jamming due to power failure, which directly blocks the escape route and seriously threatens the lives of trapped personnel.

[0016] 2. This utility model uses a rocker arm to drive a ratchet to rotate, which in turn drives a gear to rotate within a fixed plate. The gear then acts on a rack, causing the rack to slide within a sliding cylinder and push the manhole cover out. This allows the manhole cover to rotate on the window hinge, thus opening the manhole cover. This design prevents heavy manhole covers from being difficult for users with limited strength to open manually. Furthermore, the ratchet and pawl design allows the pawl to rotate on a connecting post, and the restoring force of a torsion spring continuously engages the pawl and ratchet, achieving unidirectional rotation of the ratchet. This prevents the rack from automatically closing due to the weight of the manhole cover when it pushes out the cover, thus preventing the cover from automatically closing. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 This is a bottom-view cross-sectional structural diagram of the present invention;

[0020] Figure 3 This is a schematic diagram of the locking component structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the ejection assembly parts structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the partial component disassembly structure of the ejection assembly of this utility model;

[0023] Figure 6 This is a structural diagram of another optional embodiment of the present invention;

[0024] Figure 7 This is a schematic diagram of the circuit structure of this utility model.

[0025] The following labels are used in the attached diagram: 1. Support frame; 2. Personnel entrance / exit; 3. Window hinge; 4. Manhole cover; 5. Electric push rod; 6. Hinge 51; 6. Locking assembly; 61. Movable compartment; 62. Spring; 63. Positioning rod; 64. Socket; 65. Guide groove; 66. Limit groove; 67. Limiting rod; 68. Operating window; 69. Lock hole; 7. Ejection assembly; 71. Slide cylinder; 72. Rack; 73. Fixing plate; 74. Gear; 75. Ratchet; 76. Rocker arm; 77. Connecting column; 78. Pawl; 79. Torsion spring; 8. Support rod. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] like Figures 1-5 As shown, a control device for an escape hatch cover in an underground utility tunnel includes a support frame 1, with a personnel entrance / exit 2 inside the support frame 1. A window hinge 3 is fixedly connected to the top of the personnel entrance / exit 2 on the support frame 1. The hatch cover 4 is rotatably connected to the support frame 1 via the window hinge 3. Two sets of electric push rods 5 are fixedly connected to the inner wall of the support frame 1, and the output ends of the electric push rods 5 are fixedly connected to the hatch cover 4 via bolts. A locking component 6 is provided inside the support frame 1, and the locking component 6 includes components fixedly connected to the inner wall of the support frame 1. The movable chamber 61 has a spring 62 fixedly connected inside it and a positioning rod 63 slidably connected inside it. The bottom of the manhole cover 4 is fixedly connected to a socket 64. The positioning rod 63 is slidably connected to the socket 64. Two guide grooves 65 are symmetrically opened on the outer wall of the movable chamber 61. Two sets of limiting grooves 66 are symmetrically opened on the inner wall of each guide groove 65. Limiting rods 67 are fixedly connected to the outer wall of the positioning rod 63 in the guide groove 65. The limiting rods 67 are rotatably connected to the limiting grooves 66. The surface of the support frame 1 above the movable chamber 61 has through holes.

[0028] In practice, the output end of the electric push rod 5 is separated from the manhole cover 4 by bolts, and the lock hole 69 is unlocked by a key to open the operating window 68. Then, the limiting rod 67 slides and rotates in the limiting groove 66 to the guide groove 65, so that the positioning rod 63 slides and rotates in the movable chamber 61 and the socket 64. At this time, the restoring force of the spring 62 drives the positioning rod 63 to slide from the socket 64 into the movable chamber 61, thereby achieving the purpose of unlocking the manhole cover 4. At the same time, the design of the two sets of limiting rods 67 and limiting grooves 66 allows the user to unlock and lock the manhole cover 4 from both inside and outside the personnel entrance 2. This ensures that the electric push rod 5 can still open and close normally in the event of a power outage, thus solving the problem that the escape manhole cover will be stuck due to a power outage, directly blocking the escape route and seriously threatening the life safety of trapped personnel.

[0029] As a technical optimization of this utility model, the top of the support frame 1 is rotatably connected to an operation window 68, which covers the through hole, and the operation window 68 is provided with a lock hole 69 for unlocking the operation window 68.

[0030] In practice, the locking component 6 can be protected to prevent passersby from accidentally touching it through the through hole, which could lead to the manhole cover 4 being opened unexpectedly when the power is off.

[0031] As a technical optimization of this utility model, a protective rubber strip is provided at the connection between the manhole cover 4 and the window hinge 3, and the waterproof rubber strip is fixedly connected to the window hinge 3.

[0032] In practice, this can increase the waterproof performance of the connection between the manhole cover 4 and the window hinge 3, preventing rainwater from entering the personnel entrance 2 and causing water accumulation.

[0033] As a technical optimization of this utility model, the top of the support frame 1 is designed with a slope, and the slope design is used to drain the rainwater from the top of the support frame 1.

[0034] In practice, the slope design prevents rainwater from accumulating on the top of the support frame 1, thereby reducing the load on the top of the support frame 1 and extending its service life.

[0035] As a technical optimization of this utility model, the inner wall of the support frame 1 is provided with an ejection assembly 7. The ejection assembly 7 includes a slide cylinder 71 fixedly connected to the inner wall of the support frame 1. A rack 72 is slidably connected inside the slide cylinder 71. The top of the rack 72 is in contact with the well cover 4. Two sets of fixing plates 73 are fixedly connected to the left side surface of the slide cylinder 71. A gear 74 is rotatably connected inside the fixing plate 73. The gear 74 meshes with the rack 72. A ratchet 75 is fixedly connected to the rear end of the gear 74. The ratchet 75 rotates coaxially with the gear 74. A rocker arm 76 is fixedly connected to the rear end of the ratchet 75. A connecting post 77 is fixedly connected to the rear end of the slide cylinder 71. A pawl 78 is rotatably connected to the connecting post 77. A torsion spring 79 is sleeved between the connecting post 77 and the pawl 78. The torsion spring 79 applies a torque toward the ratchet 75 to the pawl 78.

[0036] In practice, the rocker arm 76 drives the ratchet 75 to rotate, which in turn drives the gear 74 to rotate within the fixed plate 73. The gear 74 then acts on the rack 72, causing the rack 72 to slide within the slide cylinder 71 and push out the manhole cover 4. This allows the manhole cover 4 to rotate on the window hinge 3, thus opening the manhole cover 4. This prevents users with less strength from having difficulty opening the manhole cover 4 manually due to its weight. The design of the pawl 78 and ratchet 75 allows the pawl 78 to rotate on the connecting post 77, and the restoring force of the torsion spring 79 continuously drives the pawl 78 to mesh with the ratchet 75, achieving unidirectional rotation of the ratchet 75. This prevents the rack 72 from automatically closing when it pushes out the manhole cover 4 due to the weight of the cover.

[0037] As a technical optimization of this utility model, the rocker arm 76 is designed in a cylindrical shape, and the surface of the rocker arm 76 is covered with an anti-slip rubber sleeve.

[0038] In practice, this increases the contact area between the user's hand and the rocker arm 76, making it easier for staff to turn the rocker arm 76 to drive the gear 74 to rotate, and the gear 74 to drive the rack 72 to push out the manhole cover 4, thus making it easier for the user to open the manhole cover 4.

[0039] As a technical optimization of this utility model, the manhole cover 4 is a 3.0mm stainless steel reinforcing plate, and tempered glass is fixedly connected to the middle of the manhole cover 4.

[0040] In practice, this can improve the strength of the manhole cover 4, thereby preventing damage to the manhole cover 4 caused by foreign objects colliding with it, which could endanger the personal safety of users hiding in the personnel entrance 2.

[0041] In use, this utility model first separates the output end of the electric push rod 5 from the manhole cover 4 by operating the bolts. Then, the key unlocks the lock hole 69, opening the operating window 68. Next, the limiting rod 67 slides and rotates within the limiting groove 66 into the guide groove 65, causing the positioning rod 63 to slide and rotate simultaneously within the movable chamber 61 and the socket 64. At this time, the restoring force of the spring 62 drives the positioning rod 63 to slide from the socket 64 into the movable chamber 61, thereby unlocking the manhole cover 4. The design of two sets of limiting rods 67 and limiting grooves 66 allows the user to enter from the personnel entrance 2. The manhole cover 4 can be locked and unlocked from both the entrance and exit 2 and the outside of the personnel entrance. This allows the electric push rod 5 to still open and close normally even when the power is off. The rocker arm 76 drives the ratchet 75 to rotate, which in turn drives the gear 74 to rotate in the fixed plate 73. The gear 74 acts on the rack 72, causing the rack 72 to slide in the slide cylinder 71 and push the manhole cover 4 out. This allows the manhole cover 4 to rotate on the window hinge 3, thereby opening the manhole cover 4. This prevents users with less strength from having difficulty opening the manhole cover 4 manually to escape, as the manhole cover 4 is heavy.

[0042] Optionally, another aspect of the present invention discloses an embodiment in which a single-chip microcomputer control system is used to control the escape hatch cover of the underground integrated pipe gallery. The backend can detect the open or closed state of the cover 4 through the stretching or contraction state of the electric push rod 5, and can also control the working state of the electric push rod 5 through the single-chip microcomputer control system, thereby controlling the opening and closing functions of the cover; in addition, as Figure 6 As shown, in this embodiment of the invention, the hinge 51 at the connection between the electric actuator 5 and the manhole cover 4 is configured as a detachable hinge structure. In emergency situations such as when the electric actuator 5 cannot be used normally, personnel can disassemble the hinge 51, allowing the electric actuator 5 and the manhole cover 4 to be opened quickly. The control and monitoring information of the manhole cover 4 can be transmitted to a centrally located monitoring center via standard electrical interface signals (RS-485, RJ45, and DI / DO contact control) through external main control units and other terminal equipment, achieving the goal of centralized monitoring and management.

[0043] In addition, in this embodiment of the invention, an infrared sensor can be installed on the support frame 1 near the manhole cover 4 to automatically detect obstacles at the manhole opening. If there is an obstacle, it means that someone is at the manhole opening. The infrared sensor sends a command to the control system to prevent the manhole cover from closing. When a person or material enters or exits, the manhole cover will not start the closing action. When the manhole cover is closing, if a person or material passes through, the manhole cover will automatically stop the closing action and return.

[0044] Optional, such as Figure 6As shown, this embodiment of the invention also includes a support rod 8, which can be a pneumatic support rod. The support rod 8 connects the support frame 1 and the manhole cover 4 to support the manhole cover 4 and reduce the force required for personnel to push the manhole cover 4.

[0045] In addition, such as Figure 7 As shown, this embodiment of the invention also discloses a specific control circuit, which can be installed in a control box and connected to the electric push rod 5. Through this embodiment, the electrification of the manhole cover is achieved, thereby meeting multi-scenario control requirements, including:

[0046] Remote control: The control board U1 can communicate remotely from the control center to open and close the manhole cover;

[0047] On-site control: Authorized maintenance personnel at the control center can remotely communicate with the control board U1 on-site to remotely turn it on and off;

[0048] Local button control: Open or close via the control buttons on the control box;

[0049] Internal emergency opening: In the event of a power outage, personnel inside can disengage from the electric push rod 5 by operating the release device of hinge 51, and quickly open the manhole cover 4 under the action of support rod 8;

[0050] Fire alarm linkage control: In the event of a fire, the fire alarm linkage system sends a signal to the control board U1 to open the manhole cover 4.

[0051] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A control device for an escape hatch cover in an underground utility tunnel, comprising a support frame (1), characterized in that, The support frame (1) has a personnel entrance (2) inside. A window hinge (3) is fixedly connected to the support frame (1) at the top of the personnel entrance (2). The manhole cover (4) is rotatably connected to the support frame (1) through the window hinge (3). Two sets of electric push rods (5) are fixedly connected to the inner wall of the support frame (1). The output end of the electric push rod (5) is connected to the manhole cover (4) through a detachable hinge (51). The support frame (1) is provided with a locking component (6). The locking component (6) includes a movable chamber (61) fixedly connected to the inner wall of the support frame (1). A spring (62) is fixedly connected to the movable chamber (61). A positioning rod (63) is slidably connected to the movable chamber (61). A socket (64) is fixedly connected to the bottom of the manhole cover (4). The positioning rod (63) is slidably connected to the socket (64). Two guide grooves (65) are symmetrically opened on the outer wall of the movable chamber (61). Two sets of limiting grooves (66) are symmetrically opened on the inner wall of the two guide grooves (65). Limiting rods (67) are fixedly connected to the outer wall of the positioning rods (63) in the guide grooves (65). The limiting rods (67) are rotatably connected to the limiting grooves (66).

2. The control device for the escape hatch cover of an underground integrated utility tunnel according to claim 1, characterized in that, The surface of the support frame (1) above the active compartment (61) is provided with a through hole. The top of the support frame (1) is rotatably connected to an operation window (68). The operation window (68) covers the through hole. The operation window (68) is provided with a lock hole (69) for unlocking the operation window (68).

3. The control device for the escape hatch cover of an underground integrated utility tunnel according to claim 1, characterized in that, A waterproof adhesive strip is provided at the connection between the manhole cover (4) and the window hinge (3), and the waterproof adhesive strip is fixedly connected to the window hinge (3).

4. The control device for the escape hatch cover of an underground integrated utility tunnel according to claim 1, characterized in that, The top of the support frame (1) is designed with a slope, and the slope is designed to drain rainwater from the top of the support frame (1).

5. The control device for the escape hatch cover of an underground integrated utility tunnel according to claim 1, characterized in that, The inner wall of the support frame (1) is provided with an ejection assembly (7). The ejection assembly (7) includes a slide cylinder (71) fixedly connected to the inner wall of the support frame (1). A rack (72) is slidably connected inside the slide cylinder (71). The top of the rack (72) is in contact with the manhole cover (4). Two sets of fixing plates (73) are fixedly connected to the left side surface of the slide cylinder (71). A gear (74) is rotatably connected inside the fixing plate (73). The gear (74) meshes with the rack (72). A ratchet (75) is fixedly connected to the rear end of the wheel (74). The ratchet (75) rotates coaxially with the gear (74). A rocker arm (76) is fixedly connected to the rear end of the ratchet (75). A connecting post (77) is fixedly connected to the rear end of the slide cylinder (71). A pawl (78) is rotatably connected to the connecting post (77). A torsion spring (79) is sleeved between the connecting post (77) and the pawl (78). The torsion spring (79) applies a torque toward the ratchet (75) to the pawl (78).

6. The control device for the escape hatch cover of an underground integrated utility tunnel according to claim 5, characterized in that, The rocker arm (76) is cylindrical in shape and is covered with an anti-slip rubber sleeve.

7. The control device for the escape hatch cover of an underground integrated utility tunnel according to claim 1, characterized in that, The manhole cover (4) is made of 3.0mm stainless steel reinforced plate, and tempered glass is fixedly connected to the middle of the manhole cover (4).

8. The control device for the escape hatch cover of an underground integrated pipe gallery according to claim 1, characterized in that, A support rod (8) is connected between the support frame (1) and the well cover (4), and the support rod (8) is a support gas rod.

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