Stop structure of tower drum door

Abstract

The embodiment of the utility model provides a stop structure of a tower drum door, and belongs to the technical field of wind power tower drums. The stop structure of the tower drum door comprises a connecting assembly and a detecting assembly. A first connecting piece of the connecting assembly is used for being movably connected with the tower drum door, a second connecting piece is used for being connected with a crawling ladder at the bottom of the tower drum door, a containing cavity is formed in the second connecting piece, a limiting hole communicated with the containing cavity is formed in the second connecting piece, and the first connecting piece is used for being driven by the tower drum door to rotate to the locking state and rotating to the locking state when in the locking state. The first connecting piece is inserted into the accommodating cavity through the limiting hole so as to connect the tower drum door with the crawling ladder; the detection assembly comprises a detection piece and an alarm piece in communication connection with the detection piece, and the detection piece is arranged in the containing cavity and used for detecting whether the first connecting piece enters the containing cavity or not; and the alarm part is used for giving an alarm when the detection part detects that the first connecting part enters the accommodating cavity, so that the possibility of misoperation of fixing the tower drum door by an operator is reduced, and potential safety hazards are reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wind power tower drum, and particularly relates to a tower drum door stop structure. BACKGROUND

[0002] The wind power tower drum serves as a tower pole of wind power generation and mainly plays a supporting role in a wind turbine generator system while absorbing vibration of the wind turbine generator system. In order to facilitate workers to enter the wind power tower drum for installation and maintenance, a tower drum door is usually arranged on the wind power tower drum. Since the wind turbine generator system is usually constructed in a windy area, the tower drum door needs to be fixed when being opened.

[0003] In the related art, the tower drum door stop device includes a limiting piece and a latch assembly. The latch assembly includes a base and a latch rod. The base is fixedly arranged on the tower drum door, and the latch rod is movably inserted into the base. The limiting piece is arranged on a ladder below the tower drum door. A locking groove is arranged on the limiting piece, and the latch rod is matched with the locking groove. When in use, before workers enter the tower drum for maintenance, the tower drum door is opened, and the latch rod is inserted into the locking groove to fix the tower drum door.

[0004] However, in some application scenarios, the tower drum door is not correctly fixed and the workers do not confirm it, which causes certain safety hazards in the work process of the workers. CONTENT OF THE INVENTION

[0005] The tower drum door stop structure provided by the embodiments of the present application solves the problem that the tower drum door in the related art has work safety hazards when not correctly fixed and the workers do not confirm it.

[0006] The tower drum door stop structure provided by the embodiments of the present application includes a connecting assembly and a detection assembly. The connecting assembly includes a first connecting piece and a second connecting piece. The first connecting piece is used to be movably connected with the tower drum door, and the second connecting piece is used to be connected with a ladder at the bottom of the tower drum door. The second connecting piece has a containing cavity. A limiting hole is arranged on the second connecting piece and is in communication with the containing cavity. The first connecting piece is configured to be rotated to a locking state under the driving of the tower drum door. In the locking state, the first connecting piece is inserted into the containing cavity through the limiting hole to connect the tower drum door and the ladder. The detection assembly includes a detection piece and an alarm piece in communication connection with the detection piece. The detection piece is arranged in the containing cavity and is used to detect whether the first connecting piece enters the containing cavity. The alarm piece is configured to give an alarm when the detection piece detects that the first connecting piece enters the containing cavity.

[0007] In a possible implementation, the tower door stop structure provided by the embodiment of the application, the detection member is a first travel switch, the first travel switch comprises a travel switch body and a wireless transmission module electrically connected with the travel switch body, the detection assembly further comprises a power supply member, the power supply member is electrically connected with the travel switch body, the wireless transmission module is in wireless communication connection with the alarm member, the travel switch body and the wireless transmission module are arranged in the accommodating cavity, and the travel switch body is arranged opposite to the limiting hole; the travel switch body is configured to be closed under the abutting action of the first connecting member when the first connecting member enters the accommodating cavity, so as to send a control signal to the alarm member through the wireless transmission module; the alarm member is configured to send an alarm when the control signal is received.

[0008] In a possible implementation, the tower door stop structure provided by the embodiment of the application, the detection member is a second travel switch, the alarm member is a voice alarm, and the second travel switch is arranged in the accommodating cavity; the detection assembly further comprises a power supply member, the second travel switch is in wired communication connection with the voice alarm, and the second travel switch is electrically connected with the power supply member; the second travel switch is arranged opposite to the limiting hole; the second travel switch is configured to be closed under the abutting action of the first connecting member when the first connecting member enters the accommodating cavity, so as to electrically connect the power supply member and the voice alarm, so that the voice alarm is powered on to send a voice alarm.

[0009] In a possible implementation, the tower door stop structure provided by the embodiment of the application, the detection assembly further comprises a time relay, the time relay is electrically connected between the second travel switch and the voice alarm; the time relay is configured to electrically connect the power supply member and the voice alarm through the normally closed contact of the time relay when the second travel switch is closed under the abutting action of the first connecting member, and to alarm the voice alarm; when the timing reaches a preset time length, the normally closed contact of the time relay is disconnected, so that the voice alarm is powered off.

[0010] In a possible implementation, the tower door stop structure provided by the embodiment of the application, the second connecting member comprises a first housing portion and a second housing portion arranged in sequence; the first housing portion and the second housing portion are both used for being connected on the ladder, the limiting hole is arranged on the first housing portion, the first housing portion has a first accommodating groove in communication with the limiting hole, the second housing portion has a second accommodating groove in communication with the first accommodating groove, and the first accommodating groove and the second accommodating groove jointly form the accommodating cavity; the second travel switch and the voice alarm are arranged in the first accommodating groove, and the power supply member is arranged in the second accommodating groove.

[0011] In a possible implementation, the stop structure of the tower drum door provided in the embodiment of the present application, the first connecting piece comprises a connecting part and a connecting part, the connecting part is used for fixedly connecting with the tower drum door, the connecting part is provided with a plug-in hole, and the plug-in part is slidably arranged in the plug-in hole; the plug-in part is configured to slide towards the limiting hole relative to the connecting part in the locked state to be inserted into the accommodating cavity through the limiting hole.

[0012] In a possible implementation, the stop structure of the tower drum door provided in the embodiment of the present application, the second shell part is provided with a avoiding hole for avoiding the power supply part, and the avoiding hole is in communication with the second accommodating groove; the connecting assembly further comprises a shielding part matched with the avoiding hole, and the shielding part is hinged with the second shell part to open or cover the avoiding hole.

[0013] In a possible implementation, the stop structure of the tower drum door provided in the embodiment of the present application, the limiting hole is provided with a surrounding part on the side, and the surrounding part is connected with the first shell part; at least one drainage hole is formed in the side wall of the surrounding part close to the limiting hole.

[0014] In a possible implementation, the stop structure of the tower drum door provided in the embodiment of the present application, further comprises a fixing part; the second connecting piece is detachably connected with the ladder through the fixing part.

[0015] In a possible implementation, the stop structure of the tower drum door provided in the embodiment of the present application, the fixing part comprises a screw rod and a nut matched with the screw rod; one end of the screw rod is fixedly connected with the second connecting piece away from the limiting hole, and the other end of the screw rod is used for penetrating through the through hole on the ladder and sleeving the nut.

[0016] The stop structure of the tower drum door provided in the embodiment of the present application, by arranging the first connecting piece, the first connecting piece is movably connected with the tower drum door, thereby, the tower drum door is rotated, and when the tower drum door is opened to a degree for the worker to enter the tower, the first connecting piece is rotated to the locked state by the tower drum door; when the first connecting piece is in the locked state, the second connecting piece is connected with the ladder at the bottom of the tower drum door, wherein the second connecting piece has an accommodating cavity, and the second connecting piece is provided with a limiting hole in communication with the accommodating cavity; the first connecting piece is inserted into the accommodating cavity through the limiting hole to connect the tower drum door and the ladder, so that the tower drum door is fixed at the current position. Further, by arranging the detection part and the alarm part in communication connection with the detection part, the detection part is arranged in the accommodating cavity, the detection part is used to detect whether the first connecting piece enters the accommodating cavity, and the alarm part is used to issue an alarm when the detection part detects that the first connecting piece enters the accommodating cavity, so as to prompt the worker that the tower drum door has been fixed in place. The stop structure of the tower drum door can reduce the possibility of operation error of the worker and reduce the safety hazard. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments consistent with the application and, together with the description, serve to explain the principles of the application.

[0018] Figure 1 A structural schematic diagram of a wind power tower drum provided for an embodiment of the application;

[0019] Figure 2 Use of the stop structure of the tower drum door provided for an embodiment of the application Figure 1 ;

[0020] Figure 3 Use of the stop structure of the tower drum door provided for an embodiment of the application Figure 2 ;

[0021] Figure 4 A structural schematic diagram of a second connecting piece in the stop structure of the tower drum door provided for an embodiment of the application;

[0022] Figure 5 A sectional view of Figure 4 ; Figure 1 ;

[0023] Figure 6 A sectional view of Figure 4 ; Figure 2 ;

[0024] Figure 7 An electrical connection diagram of various components in Figure 5 ;

[0025] Figure 8 A connection diagram of the second connecting piece, the shielding piece and the enclosing part in the stop structure of the tower drum door provided for an embodiment of the application.

[0026] BRIEF DESCRIPTION OF THE DRAWINGS

[0027] 100 - stop structure of tower drum door;

[0028] 110 - connecting assembly;

[0029] 111 - first connecting piece; 1111 - insertion part; 1112 - connecting part;

[0030] 112 - second connecting piece; 1120 - limiting hole; 1121 - accommodating cavity; 1122 - first housing part; 1123 - second housing part; 1124 - first accommodating groove; 1125 - second accommodating groove; 1126 - avoiding opening; 1127 - shielding piece; 1128 - enclosing part; 1129 - drainage hole;

[0031] 120 - detection assembly;

[0032] 121 - detecting member; 1211 - first travel switch; 1201 - travel switch body; 1202 - wireless transmission module; 1222 - second travel switch;

[0033] 122 - alarming member;

[0034] 130 - power supply member;

[0035] 140 - time relay; 141 - normally closed contact;

[0036] 200 - wind tower;

[0037] 210 - tower body; 211 - door frame; 2111 - frame edge;

[0038] 220 - tower door;

[0039] 230 - ladder; 231 - step. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical scheme and advantages of the present application clearer, the technical scheme in the embodiments of the present application will be described in more detail below in combination with the drawings in the preferred embodiments of the present application. In the drawings, the same or similar notations represent the same or similar parts or parts having the same or similar functions throughout. The described embodiments are part of the embodiments of the present application, not all the embodiments. The embodiments described below by referring to the drawings are exemplary, and are intended to explain the present application, and cannot be understood as a limitation of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts fall within the scope of protection of the present application. The embodiments of the present application will be described in detail below in combination with the drawings.

[0041] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood in a broad sense, for example, it can be fixedly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0042] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right" and the like indicate the orientation or positional relationship shown in the drawings, and are only intended to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0043] The terms "first", "second", "third", "fourth", and the like in the description and in the claims of the present application and above-mentioned drawings are used for distinguishing between similar objects and not necessarily for describing a specific sequential or chronological order. It is to be understood that the use of the terms so

[0044] Moreover, the terms "comprising" and "having" and any variations thereof are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or apparatus that comprises a list of steps or units not necessarily limited to those specifically listed and can include other steps or units not expressly listed or inherent to such process, method, product or apparatus.

[0045] The wind power tower drum serves as a tower pole for wind power generation and mainly plays a supporting role in the wind turbine generator while absorbing vibration of the wind turbine generator. In order to facilitate workers to enter the wind power tower drum for installation and maintenance, a tower drum door is usually arranged on the wind power tower drum. Since the wind turbine generator is usually constructed in a windy area, the tower drum door needs to be fixed when it is opened.

[0046] In the related art, the stop device of the tower drum door comprises a limiting piece and a latch assembly; the latch assembly comprises a base and a latch rod, the base is fixedly arranged on the tower drum door, the latch rod is movably inserted into the base, the limiting piece is arranged on a ladder stand below the tower drum door, a locking groove is formed on the limiting piece, and the latch rod is matched with the locking groove. In use, before the workers enter the tower drum for maintenance, the tower drum door is opened, and the latch rod is inserted into the locking groove to fix the tower drum door.

[0047] However, in some application scenarios, for example, when temporary emergency maintenance of the tower drum is needed, or in extreme weather conditions with unpredictable wind strength, combined with nighttime or poor visibility, maintenance work on the wind power tower drum is needed, and due to the influence of time, environment and other factors, the situation that the tower drum door is not correctly fixed and the workers do not confirm will occur.

[0048] Further, if the tower drum door is not correctly locked, strong wind may cause it to suddenly close, thereby causing impact injury to the workers entering or leaving, especially when heavy tools or equipment are carried in and out, the sudden action of the tower drum door is more likely to cause a safety accident; at the same time, frequent abnormal opening and closing of the tower drum door will also cause wear and tear to the door itself and the door frame structure, increasing maintenance costs. In addition, in some emergency situations, such as fire or equipment failure requiring rapid evacuation, if the tower drum door is not in the open state, it will hinder the emergency escape path of the workers inside the tower drum, so that the workers have certain safety risks during the operation.

[0049] Therefore, the application provides a stop structure of a tower door, which is characterized in that: the first connecting piece is movably connected with the tower door through the first connecting piece and the second connecting piece, and the second connecting piece is connected with the ladder at the bottom of the tower door, wherein the second connecting piece has a receiving cavity, and a limiting hole is formed in the second connecting piece and communicates with the receiving cavity; thus, the tower door is rotated, and when the opening degree of the tower door after being rotated and opened can allow the worker to enter the tower, the tower door drives the first connecting piece to rotate to a locking state, and when the first connecting piece is in the locking state, the second connecting piece is connected with the ladder at the bottom of the tower door, the first connecting piece is inserted into the receiving cavity through the limiting hole of the second connecting piece to connect the tower door and the ladder, so that the tower door is limited and fixed at the current position.

[0050] Further, in order to ensure that the first connecting piece is correctly inserted into the receiving cavity and the tower door is correctly fixed, the detection piece is arranged in the receiving cavity, the detection piece is used to detect whether the first connecting piece is inserted into the receiving cavity, and the alarm piece is used to issue an alarm when the detection piece detects that the first connecting piece is inserted into the receiving cavity, so as to prompt the worker that the tower door has been fixed in place, and if the alarm piece does not issue an alarm, it indicates that the first connecting piece is not inserted into the receiving cavity, so as to prompt the worker to re-operate the first connecting piece to be inserted into the receiving cavity through the limiting hole. The stop structure of the tower door can reduce the possibility of operation error of the worker and reduce the safety hazard.

[0051] Firstly, the application scenario of the stop structure 100 of the tower door is described. As shown in Figure 1 The wind turbine tower 200 includes a tower body 210 and a ladder 230, the side wall of the tower body 210 is provided with a door frame 211, the tower door 220 is hinged to the door frame 211, the ladder 230 is arranged below the tower door 220, and the ladder 230 is provided with a step 231 extending from the bottom of the ladder 230 to the top of the ladder 230. The worker can reach the top of the ladder 230 through the step 231, and then enter the inside of the tower body 210 by opening the tower door 220.

[0052] Hereinafter, the application will be described in detail in combination with the drawings and specific embodiments.

[0053] Referring to Figures 1 to 5The stop structure 100 of the tower drum door provided by the embodiment of the application comprises a connecting assembly 110 and a detection assembly 120. The connecting assembly 110 comprises a first connecting piece 111 and a second connecting piece 112. The first connecting piece 111 is used to be movably connected with the tower drum door 220. The second connecting piece 112 is used to be connected with a ladder 230 at the bottom of the tower drum door 220. The second connecting piece 112 has a containing cavity 1121 therein. The second connecting piece 112 is provided with a limiting hole 1120 which is in communication with the containing cavity 1121. The first connecting piece 111 is configured to be rotated to a locking state under the driving of the tower drum door 220. In the locking state, the first connecting piece 111 is inserted into the containing cavity 1121 through the limiting hole 1120 to connect the tower drum door 220 and the ladder 230.

[0054] The detection assembly 120 comprises a detection piece 121 and an alarm piece 122 which is communicatively connected with the detection piece 121. The detection piece 121 is arranged in the containing cavity 1121 and is used to detect whether the first connecting piece 111 enters the containing cavity 1121. The alarm piece 122 is configured to give an alarm when the detection piece 121 detects that the first connecting piece 111 enters the containing cavity 1121.

[0055] Specifically, by arranging the first connecting piece 111 and the second connecting piece 112, the first connecting piece 111 is accurately inserted into the containing cavity 1121 of the second connecting piece 112 through the limiting hole 1120 to form a relatively stable mechanical connection in a plug-in manner, thereby providing a reliable fixing mode for the tower drum door 220. It should be noted that the specific structure of the first connecting piece 111 and the second connecting piece 112 is not limited in the embodiment of the application. As long as it is ensured that the first connecting piece 111 is inserted into the containing cavity 1121 under extreme weather conditions, the two have good structural strength to prevent them from being separated, and the tower drum door 220 is prevented from moving or closing accidentally, the safety of the workers during the process of entering and exiting the tower drum body 210 is ensured.

[0056] Illustratively, when the tower drum door 220 needs to be opened due to work, the first connecting piece 111 is rotated to a locking state under the driving of the tower drum door 220. The locking state of the first connecting piece 111 is adapted to the opening degree of the tower drum door 220 after being rotated to open for workers to enter the tower drum. The opening degree of the tower drum door 220 when being opened can be set according to the actual work scene. For example, when the tower drum body 210 is overhauled, the tower drum door 220 is rotated to a first opening degree to allow one worker to enter, and then the rotation of the tower drum door 220 is stopped. At this time, the tower drum door 220 drives the first connecting piece 111 to rotate to the locking state. Of course, the tower drum door 220 can also be rotated to a second opening degree to allow two workers to enter at the same time, thereby improving the efficiency of the overhaul. At this time, the rotation of the tower drum door 220 is stopped when the tower drum door 220 is rotated to the second opening degree, and the tower drum door 220 drives the first connecting piece 111 to rotate to the locking state.

[0057] In combination Figures 1 to 3 As shown in the drawings, the first connecting member 111 can be provided in a rod-shaped structure, and the tower door 220 is hinged to one of the two frame edges 2111 of the door frame 211 opposite in the Y direction. When the tower door 220 drives the first connecting member 111 to rotate to the locked state, the second connecting member 112 connected to the ladder 230 can be arranged opposite to the first connecting member 111 in the Z direction, i.e., the second connecting member 112 is below the first connecting member 111. In addition, the second connecting member 112 and the first connecting member 111 can also be arranged opposite in the X direction, i.e., the second connecting member 112 is beside the first connecting member 111.

[0058] In specific implementation, the axis of the second connecting member 112 in the above two setting modes is parallel to the center line of the plug-in hole, for example, the plug-in hole is matched in size with the first connecting member 111 of the rod-shaped structure, and the axis of the second connecting member 112 coincides with the center line of the plug-in hole. Since the first connecting member 111 is movably connected to the tower door 220, by operating the first connecting member 111 to slide relative to the tower door 220, the first connecting member 111 is made to slide towards the second connecting member 112, so that the first connecting member 111 is inserted into the accommodating cavity 1121 of the second connecting member 112 through the limiting hole 1120.

[0059] After the first connecting member 111 is inserted into the accommodating cavity 1121, when the tower door 220 continues to drive the first connecting member 111 to rotate, the hole wall of the limiting hole 1120 will be in contact with the first connecting member 111 and serve as a limiting function for the first connecting member 111, thereby fixing the tower door 220 to the current position.

[0060] In order to ensure that the first connecting member 111 is accurately inserted into the accommodating cavity 1121 of the second connecting member 112 through the limiting hole 1120, and to realize correct fixing of the tower door 220, a detection member 121 and an alarm member 122 in communication connection with the detection member 121 are provided. The detection member 121 is arranged in the accommodating cavity 1121, and the detection member 121 is used to detect whether the first connecting member 111 enters the accommodating cavity 1121. When the detection member 121 detects that the first connecting member 111 enters the accommodating cavity 1121, the alarm member 122 issues an alarm, thereby prompting the operator that the tower door 220 has been fixed in place. If the alarm member 122 does not issue an alarm, it indicates that the first connecting member 111 is not inserted into the accommodating cavity 1121, thereby prompting the operator to re-operate the insertion of the first connecting member 111 into the accommodating cavity 1121 through the limiting hole 1120.

[0061] Through the above setting, the stop structure 100 of the tower door of the embodiment of the application can reduce the possibility of operation error of the operator in fixing the tower door 220 and reduce the safety hazard.

[0062] Referring to Figure 6 In some embodiments, the detection member 121 is a first travel switch 1211, the first travel switch 1211 comprises a travel switch body 1201 and a wireless transmission module 1202 electrically connected with the travel switch body 1201, the detection assembly 120 further comprises a power supply member 130 electrically connected with the travel switch body 1201, the wireless transmission module 1202 is in wireless communication connection with the alarm member 122, the travel switch body 1201 and the wireless transmission module 1202 are arranged in the accommodating cavity 1121, and the travel switch body 1201 is arranged opposite to the limiting hole 1120.

[0063] The travel switch body 1201 is configured to be closed under the abutting action of the first connecting member 111 when the first connecting member 111 enters the accommodating cavity 1121, so as to send a control signal to the alarm member 122 through the wireless transmission module 1202; the alarm member 122 is configured to issue an alarm when receiving the control signal.

[0064] Specifically, by arranging the travel switch body 1201 opposite to the limiting hole 1120, the first connecting member 111 can be instantaneously detected by the travel switch body 1201 when the first connecting member 111 enters the accommodating cavity 1121 through the limiting hole 1120, so that whether the first connecting member 111 enters the accommodating cavity 1121 can be detected more accurately.

[0065] By arranging the wireless transmission module 1202, when the first connecting member 111 enters the accommodating cavity 1121 to make the travel switch body 1201 closed, the wireless transmission module 1202 is used to send a control signal to the alarm member 122, so that the alarm member 122 receives the control signal to issue an alarm to prompt the tower door 220 to be fixed in place. In this way, the travel switch body 1201 and the alarm member 122 do not need to be physically connected, on the one hand, the installation process is simplified, the wiring workload is reduced, and the maintainability of the tower door stop structure 100 is also enhanced; on the other hand, the deployment position of the alarm member 122 can be more flexible.

[0066] For example, the alarm member 122 can be placed in the line of sight range where the operator can easily observe and conveniently operate, thereby the alarm member 122 plays a role of providing early warning for the operator, and the operator can operate the alarm member 122 to close after receiving the prompt information, so as to avoid continuous alarm and interference to the operator. The alarm member 122 can be a voice alarm or a light alarm.

[0067] It should be noted that the specific type of the wireless transmission module 1202 is not limited in the embodiments of the present application, as long as the above functions can be realized.

[0068] It can be understood that the travel switch body 1201 and the wireless transmission module 1202 are arranged in the accommodation cavity 1121, which can prevent external environmental factors such as rain, dust and the like from directly affecting them, and is beneficial to the durability and long-term operation stability of the travel switch body 1201 and the wireless transmission module 1202.

[0069] In addition, by arranging the power supply part 130, the power supply part 130 is electrically connected with the travel switch body 1201 to provide stable power supply for the operation of the first travel switch 1211. In specific implementation, the power supply part 130 can be arranged in the accommodation cavity 1121, and the power supply part 130 can also be arranged outside the accommodation cavity 1121. By arranging the avoiding hole in communication with the accommodation cavity 1121 on the second connecting piece 112, the electrical connection between the power supply part 130 and the travel switch body 1201 in the accommodation cavity 1121 can be realized.

[0070] Referring to Figure 5 and Figure 7 In some examples, the detection part 121 is a second travel switch 1222, the alarm part 122 is a voice alarm, and the second travel switch 1222 is arranged in the accommodation cavity 1121; the detection assembly 120 further comprises a power supply part 130, the second travel switch 1222 is in wired communication connection with the voice alarm, and the second travel switch 1222 is electrically connected with the power supply part 130, and the second travel switch 1222 is arranged opposite to the limiting hole 1120; the second travel switch 1222 is configured to, when the first connecting piece 111 enters the accommodation cavity 1121, be closed under the abutting action of the first connecting piece 111 to electrically connect the power supply part 130 and the voice alarm, so that the voice alarm is powered to issue a voice alarm.

[0071] Here, by the direct electrical connection design of the second travel switch 1222, the power supply part 130 and the voice alarm, when the first connecting piece 111 is correctly inserted into the accommodation cavity 1121, it is in abutting contact with the second travel switch 1222, so that the second travel switch 1222 is closed to electrically connect the electrical circuit formed by the three, so that the voice alarm is powered from the power supply part 130 to start. Therefore, by using traditional electrical control technology without complex electronic control unit, it is beneficial to reduce the fault point of the stop structure 100 of the tower door, and is convenient for maintenance and troubleshooting.

[0072] In addition, by wired communication connection of the second travel switch 1222 and the voice alarm, it can be applied to areas with poor wireless signal coverage, realize a more direct and stable information transmission way, and ensure the immediacy and reliability of information transmission from the second travel switch 1222 to the voice alarm.

[0073] The embodiments of the present application do not limit the specific positions of the power supply 130 and the voice alarm, and exemplarily, the power supply 130 and the voice alarm can be both arranged in the accommodating cavity 1121, or an avoiding hole communicating with the accommodating cavity 1121 can be formed on the second connecting piece 112, and one of the power supply 130 and the voice alarm is arranged outside the accommodating cavity 1121, for example, on the ladder 230 at the bottom of the tower door 220, so that the connection of the three can also be achieved.

[0074] Further, considering that if the voice alarm is arranged in the accommodating cavity 1121, the working personnel is inconvenient to cancel the alarm after the voice alarm provides a prompt function, therefore, in order to improve the use experience of the working personnel, referring to Figure 7 In some examples, the detection assembly 120 further comprises a time relay 140, which is electrically connected between the second travel switch 1222 and the voice alarm; the time relay 140 is configured to, when the second travel switch 1222 is closed under the abutting action of the first connecting piece 111, electrically connect the power supply 130 and the voice alarm through the normally closed contact 141 of the time relay 140, and time the alarm of the voice alarm; when the timing reaches a preset time length, the normally closed contact 141 of the time relay 140 is disconnected, so that the voice alarm loses power.

[0075] Therefore, by arranging the time relay 140, the alarm cancellation of the voice alarm can be automatically realized without manual intervention, which is beneficial to improve the working efficiency.

[0076] Specifically, the preset time length can be set according to actual working requirements, as long as the alarm information can be effectively conveyed to the working personnel, and the long-time continuous alarm sound can be avoided to cause the auditory fatigue of the working personnel, for example, the preset time length is 5 seconds to 10 seconds.

[0077] Referring to Figure 4 and Figure 5 In some examples, the second connecting piece 112 comprises a first housing portion 1122 and a second housing portion 1123 arranged in sequence; the first housing portion 1122 and the second housing portion 1123 are both used for being connected on the ladder 230, the limiting hole 1120 is formed on the first housing portion 1122, the first housing portion 1122 has a first accommodating groove 1124 communicating with the limiting hole 1120, the second housing portion 1123 has a second accommodating groove 1125 communicating with the first accommodating groove 1124, and the first accommodating groove 1124 and the second accommodating groove 1125 jointly form the accommodating cavity 1121; the second travel switch 1222 and the voice alarm are arranged in the first accommodating groove 1124, and the power supply 130 is arranged in the second accommodating groove 1125.

[0078] Therefore, by providing clear and orderly installation space for the second travel switch 1222, the voice alarm and the power supply 130, the tower door stop structure 100 has better compactness and neatness, and the space occupied by installation is reduced. At the same time, positioning and debugging during installation are facilitated, and subsequent fault diagnosis and troubleshooting are also facilitated.

[0079] In addition, by arranging the first shell part 1122 and the second shell part 1123 to be connected with the ladder 230, when the tower door 220 is subjected to impact of wind force or personnel entering and exiting, the second connecting part 112 and the components inside it are prevented from loosening and shifting, and the stability of the second connecting part 112 and the components inside it and the safety and durability of the entire stop structure can be improved.

[0080] In specific implementation, the first shell part 1122 and the second shell part 1123 can be integrally formed, so that gaps at the connection positions of the two are avoided, and dust and the like are prevented from entering the accommodation cavity 1121.

[0081] Further, in order to facilitate subsequent replacement of the power supply 130 and the like in the accommodation cavity 1121 by the personnel, as shown in FIG. 8, in a specific example, an accommodation opening 1126 for accommodating the power supply 130 is arranged on the second shell part 1123, and the accommodation opening 1126 is in communication with the second accommodation groove 1125; the connecting assembly 110 further includes a shielding part 1127 matched with the accommodation opening 1126, and the shielding part 1127 is hingedly connected with the second shell part 1123 to open or cover the accommodation opening 1126.

[0082] Therefore, in normal use, the shielding part 1127 remains in a state of covering the accommodation opening 1126, and when the power supply 130 needs to be replaced, the shielding part 1127 is rotated relative to the second shell part 1123 to open the accommodation opening 1126, thereby providing a channel for the personnel to operate, and after the operation is completed, the shielding part 1127 is reversely rotated to cover the accommodation opening 1126.

[0083] Exemplarily, the second shell part 1123 is a columnar shell, the accommodation opening 1126 is circular, and the shielding part 1127 is a circular plate matched with the accommodation opening 1126.

[0084] The specific type of the power supply 130 is not limited in the embodiments of the present application, as long as the power supply 130 can supply power to the second travel switch 1222 and the voice alarm, and exemplarily, the power supply 130 can be a 24V power supply.

[0085] Referring to Figure 3In some embodiments, the first connecting piece 111 comprises a plug-in part 1111 and a connecting part 1112, the connecting part 1112 is used for fixed connection with the tower door 220, a plug-in hole is formed on the connecting part 1112, and the plug-in part 1111 is slidingly inserted into the plug-in hole; the plug-in part 1111 is configured to slide towards the limiting hole 1120 relative to the connecting part 1112 in the locked state, so as to be inserted into the accommodating cavity 1121 through the limiting hole 1120.

[0086] Therefore, the assembly of the first connecting piece 111 and the tower door 220 is simple, the movable connection between the two can be achieved without complex tools, and the sliding cooperation between the plug-in part 1111 and the plug-in hole on the connecting part 1112 makes the operation more convenient.

[0087] In particular implementation, the connecting part 1112 is a fixed seat, and the plug-in part 1111 is a windproof bolt.

[0088] Continuing to refer to Figure 8 In some examples, a surrounding part 1128 is arranged on the side of the limiting hole 1120, and the surrounding part 1128 is connected with the first housing part 1122; at least one drainage hole 1129 is formed in the side wall of the limiting hole 1120 of the surrounding part 1128.

[0089] Therefore, by arranging the surrounding part 1128, after the first connecting piece 111 is inserted into the accommodating cavity 1121 through the limiting hole 1120, the part of the first connecting piece 111 located outside the accommodating cavity 1121 is placed in the area surrounded by the surrounding part 1128, thereby protecting the part of the first connecting piece 111; further, by forming at least one drainage hole 1129 in the side wall of the limiting hole 1120 of the surrounding part 1128, when rainwater accumulates at the position of the drainage hole 1129 after the rainwater drops on the first housing part 1122, the rainwater can flow out through the drainage hole 1129, thereby avoiding excessive rainwater from leaking into the first accommodating groove 1124 from the limiting hole 1120.

[0090] In some embodiments, the stop structure 100 of the tower door further comprises a fixing piece (not shown in the figure); the second connecting piece 112 is used for detachable connection with the ladder 230 through the fixing piece.

[0091] In particular, by arranging the fixing piece, the second connecting piece 112 and the ladder 230 can be conveniently separated and reassembled, and in addition, the second connecting piece 112 can be flexibly adjusted in position according to actual needs.

[0092] In particular, the fixing piece comprises a screw rod and a nut matched with the screw rod; one end of the screw rod is fixedly connected with one side of the second connecting piece 112 away from the limiting hole 1120, and the other end of the screw rod is used for penetrating through a through hole on the ladder 230 and sleeving the nut.

[0093] Thus, by the mutual engagement of the threads, a stable fixing force and tensile force are formed, ensuring that the second connecting member 112 and the ladder stand 230 can maintain a stable connection state even during strong wind vibration or long-term use. In addition, the operator can quickly complete the connection or separation of the second connecting member 112 and the ladder stand 230 by manually or using appropriate tools to tighten or loosen the nuts, without the need for complex installation skills or special equipment, which is conducive to reducing installation costs and time consumption.

[0094] Illustratively, the threaded rod and the second connecting member 112 can be connected by welding, thereby ensuring reliable connection between the two and avoiding the phenomenon of loose connection.

[0095] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A tower door stop structure, characterized by, The connecting assembly and the detecting assembly are included; The connecting assembly includes a first connecting piece and a second connecting piece, the first connecting piece is used for being movably connected with a tower door, and the second connecting piece is used for being connected with a ladder of a bottom of the tower door, the second connecting piece has a containing cavity, and a limiting hole in communication with the containing cavity is formed in the second connecting piece, the first connecting piece is configured to be rotated to a locking state under the driving of the tower door, and in the locking state, the first connecting piece is inserted into the containing cavity through the limiting hole to connect the tower door and the ladder; The detecting assembly includes a detecting piece and an alarm piece in communication connection with the detecting piece, the detecting piece is arranged in the containing cavity, and the detecting piece is used for detecting whether the first connecting piece enters the containing cavity; The alarm piece is configured to send an alarm when the detecting piece detects that the first connecting piece enters the containing cavity.

2. The tower section door stop structure of claim 1, wherein The detecting piece is a first travel switch, the first travel switch includes a travel switch body and a wireless transmission module in electrical connection with the travel switch body, the detecting assembly further includes a power supply piece in electrical connection with the travel switch body, the wireless transmission module is in wireless communication connection with the alarm piece, the travel switch body and the wireless transmission module are arranged in the containing cavity, and the travel switch body is arranged opposite to the limiting hole; The travel switch body is configured to be closed under the abutting action of the first connecting piece when the first connecting piece enters the containing cavity, so as to send a control signal to the alarm piece through the wireless transmission module; The alarm piece is configured to send an alarm when the control signal is received.

3. The tower section door stop structure of claim 1, wherein The detecting piece is a second travel switch, the alarm piece is a voice alarm, and the second travel switch is arranged in the containing cavity; the detecting assembly further includes a power supply piece, the second travel switch is in wired communication connection with the voice alarm, and the second travel switch is in electrical connection with the power supply piece; the second travel switch is arranged opposite to the limiting hole; The second travel switch is configured to be closed under the abutting action of the first connecting piece when the first connecting piece enters the containing cavity, so as to electrically connect the power supply piece and the voice alarm, so that the voice alarm is powered to send a voice alarm.

4. The tower section door stop structure of claim 3, wherein The detecting assembly further includes a time relay, the time relay is electrically connected between the second travel switch and the voice alarm; The time relay is configured to electrically connect the power supply piece and the voice alarm through a normally closed contact of the time relay when the second travel switch is closed under the abutting action of the first connecting piece, and to alarm the voice alarm; when the alarm time reaches a preset time length, the normally closed contact of the time relay is disconnected, so that the voice alarm is powered off.

5. The tower section door stop structure of claim 3, wherein The second connecting piece includes a first shell part and a second shell part arranged in sequence; The first shell part and the second shell part are used to be connected on the ladder, the limiting hole is arranged on the first shell part, the first shell part has a first accommodating groove in communication with the limiting hole, the second shell part has a second accommodating groove in communication with the first accommodating groove, and the first accommodating groove and the second accommodating groove jointly form the accommodating cavity. The second travel switch and the voice alarm are arranged in the first accommodating groove, and the power supply part is arranged in the second accommodating groove.

6. The tower door stop structure according to any one of claims 1 to 5, wherein The first connecting part comprises a connecting part and a connecting part, the connecting part is used to be fixedly connected with the tower door, the connecting part is provided with a plug-in hole, and the plug-in part is slidably arranged in the plug-in hole. The plug-in part is configured to slide relative to the connecting part towards the limiting hole in the locked state to be inserted into the accommodating cavity through the limiting hole.

7. The tower section door stop structure of claim 5, wherein The second shell part is provided with an avoiding hole for avoiding the power supply part, and the avoiding hole is in communication with the second accommodating groove. The connecting assembly further comprises a shielding part matched with the avoiding hole, and the shielding part is hinged with the second shell part to open or cover the avoiding hole.

8. The tower section door stop structure of claim 5, wherein The limiting hole is provided with a surrounding part on the side, and the surrounding part is connected with the first shell part. At least one drainage hole is arranged on the side wall of the limiting hole.

9. The tower door stop structure according to any one of claims 1 to 4, wherein Further comprising a fixing part; the second connecting part is used to be detachably connected with the ladder through the fixing part.

10. The tower section door stop structure of claim 9, wherein The fixing part comprises a screw rod and a nut matched with the screw rod; One end of the screw rod is fixedly connected with one side of the second connecting part away from the limiting hole, and the other end of the screw rod is used to pass through the through hole on the ladder and is sleeved with the nut.

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