Wind tunnel door locking device for hydropower station

Abstract

The utility model discloses a wind tunnel door locking device for a hydropower station, which relates to the field of hydropower station door locks and comprises a door body and a door frame. A door opening and closing control system is arranged on the door body; a matching piece matched with the door opening and closing control system is arranged on the door frame; the door opening and closing control system comprises a spring bolt, a spring bolt control system, an electromagnet and an electromagnetic control system. The matching piece comprises a lock hole and an iron block; the spring bolt control system is used for controlling stretching and retracting of the spring bolt, and the electromagnetic control system is used for controlling power-on and power-off of the electromagnet. And the door opening and closing control system is linked with the electromagnetic control system to cooperatively realize door opening and closing. According to the utility model, double locking is realized through the magnetic lock and the spring bolt, and the wind tunnel door cannot be opened by mistake after an external power supply disappears, so that the wind tunnel door can be reliably closed in the unit operation process; and after the external power supply disappears, the door can be opened and closed through an external door opening knob, and the operation requirement of the wind tunnel door is met.

Description

Technical Field

[0001] The utility model relates to the field of hydroelectric power station door locks, and particularly to a wind tunnel door lock ingot device for a hydroelectric power station. Background Art

[0002] The statements in this section only provide background information related to the present disclosure and may not constitute prior art.

[0003] The wind tunnel of a hydro-generator unit is a key part for the stator and rotor to dissipate heat during the operation of the hydro-generator unit. Due to the rotation of the unit inside the wind tunnel, a relatively large wind pressure will be generated. If the wind tunnel door only relies on a conventional suction-type access control magnetic lock, there may be problems such as insufficient attraction or power failure of the access control system, resulting in the failure of the access control and the accidental opening of the wind tunnel door during the operation of the unit, which is not allowed. In actual work, a mechanical lock is often installed in addition to the magnetic lock, but the following problems will occur:

[0004] 1. Entering the wind tunnel requires unlocking the access control and unlocking with the key of the mechanical lock, and the unlocking steps are cumbersome;

[0005] 2. Under the action of the wind pressure inside the wind tunnel, the mechanical lock is extremely easy to be damaged during daily use, resulting in the inability to open the door;

[0006] 3. Due to the failure of the unlocking button of the magnetic lock or the mechanical lock inside the wind tunnel, the staff cannot open the door from the inside after entering the wind tunnel, and there is a hidden danger that the staff will be locked in the wind tunnel and unable to contact the outside world. Summary of the Utility Model

[0007] The purpose of the utility model is to provide a wind tunnel door lock ingot device for a hydroelectric power station to solve the problems that the access control magnetic lock of the existing hydroelectric power station wind tunnel is accidentally opened during the operation of the unit due to excessive wind pressure inside the wind tunnel, the staff is accidentally locked inside the wind tunnel due to the door lock failure, the door opening process is cumbersome, the staff cannot open the wind tunnel door from the outside in time due to the mechanical door lock failure, and the wind tunnel door is accidentally opened due to the power failure of the magnetic lock, etc.

[0008] The technical solution of the utility model is as follows:

[0009] A wind tunnel door lock ingot device for a hydroelectric power station includes a door opening and closing control system and a cooperating part matched therewith; the door opening and closing control system is used to be installed on the door body, and the cooperating part is used to be installed on the door frame; the door opening and closing control system includes a lock tongue, a lock tongue control system, an electromagnet and an electromagnetic control system; the cooperating part includes a lock hole and an iron block; the lock tongue control system is used to control the expansion and contraction of the lock tongue, and the electromagnetic control system is used to control the on-off of the electromagnet; the door opening and closing control system is linked with the electromagnetic control system to jointly realize opening and closing the door.

[0010] Further, the bolt control system includes: an access control card reader, a data processing module, and a lock switch module; the access control card reader is connected to the data processing module, the data processing module is connected to the lock switch module, and the access control card reader is arranged on the outer side of the door body.

[0011] Further, the lock switch module includes: a stepper motor; a gear set is connected to the working end of the stepper motor, and a rack cooperating with the gear set is arranged on the bolt; the stepper motor is connected to the data processing module;

[0012] Further, the electromagnetic control system and the bolt control system share a data processing module; the electromagnet is connected to the data processing module, and the data processing module is used to supply power to the electromagnet and receive the normally open and normally closed feedback signals fed back by the electromagnet;

[0013] When opening the door from the outside, the data processing module controls the stepper motor to rotate according to the authorized passing signal issued by the access control card reader, so that the bolt retracts from the lock hole. After the stepper motor rotates in place, the data processing module then controls the electromagnet to cut off the power supply, and the magnetic lock is unlocked to complete the door opening action;

[0014] When manually closing the door, the data processing module controls the electromagnet to be powered on, and the magnetic lock automatically attracts. The normally closed feedback signal fed back by the electromagnet is fed back to the data processing module. After receiving the normally closed feedback signal, the data processing module controls the stepper motor to rotate, so that the bolt extends from the lock hole and inserts into the lock hole to complete the door closing action.

[0015] Further, the lock switch module further includes: a one-key unlocking button, the one-key unlocking button is arranged on the inner side of the door body, and the one-key unlocking button is connected to the data processing module;

[0016] When opening the door from the inside, the data processing module controls the stepper motor to rotate according to the door opening signal sent by the one-key unlocking button, so that the bolt retracts from the lock hole. After the stepper motor rotates in place, the data processing module then controls the electromagnet to cut off the power supply, and the magnetic lock is unlocked to complete the door opening action.

[0017] Further, the lock switch module further includes: an emergency door opening knob, and the emergency door opening knobs are arranged on both the inner and outer sides of the door body, and a gear set cooperating with the rack is also arranged on the emergency door opening knob.

[0018] Further, a sliding groove is formed in the door body, one end of the emergency door opening knob is provided with a connecting rod, and a gear set is arranged at the end of the connecting rod; the emergency door opening knob can slide in the sliding groove through the connecting rod, so as to realize the engagement or separation of the gear set and the rack;

[0019] When the wind tunnel door lock device loses power, press the emergency door opening knob inward to engage the gear set with the rack, rotate the emergency door opening knob to control the retraction or extension of the lock tongue, and complete the door opening or closing action.

[0020] When the one-key unlocking button fails and the door is opened from the inside, press the emergency door opening knob inward to engage the gear set with the rack. At the same time, the data processing module cuts off the power supply of the electromagnetic iron through the node, and the magnetic lock is unlocked. Then rotate the emergency door opening knob to control the retraction of the lock tongue and complete the door opening action.

[0021] Furthermore, it also includes a power supply unit, which is connected to the data processing module and supplies power to the data processing module, access control card reader, electromagnetic iron, and stepper motor.

[0022] Furthermore, the power supply unit is a 12V DC power supply.

[0023] Furthermore, a housing is provided on the door body, and the door opening and closing control system is arranged on the housing.

[0024] Compared with the existing technology, the beneficial effects of the present utility model are as follows:

[0025] 1. In the present utility model, double locking is achieved through the magnetic lock and the lock tongue. The wind tunnel door will not be accidentally opened after the external power supply disappears, ensuring that the wind tunnel door can be reliably closed during the operation of the unit. And after the external power supply disappears, the door can be opened and closed through the external door opening knob, meeting the operation requirements of the wind tunnel door.

[0026] 2. The present utility model can be linked with the access control system, enabling staff with access control permissions to conveniently open the door.

[0027] 3. The present utility model is equipped with an emergency door opening knob inside to solve the problem that staff may be trapped inside the wind tunnel door and unable to get out. Description of the Drawings

[0028] Figure 1 It is a control logic diagram of a wind tunnel door lock device for a hydropower station;

[0029] Figure 2 It is an overall installation schematic diagram of a wind tunnel door lock device for a hydropower station;

[0030] Figure 3 It is a front view schematic diagram of a wind tunnel door lock device for a hydropower station;

[0031] Figure 4 It is a rear view schematic diagram of a wind tunnel door lock device for a hydropower station;

[0032] Figure 5 It is a side view schematic diagram of a wind tunnel door lock device for a hydropower station;

[0033] Figure 6It is a schematic diagram of the overall structure of a wind tunnel door locking device for a hydropower station.

[0034] Reference numerals: 1 - housing, 2 - access control card reader, 3 - data processing module, 4 - one - key unlocking button, 5 - stepping motor, 6 - rack, 7 - locking tongue, 8 - external emergency door opening knob, 9 - internal emergency door opening knob, 10 - electromagnet, 11 - iron block, 12 - keyhole. Detailed implementation mode

[0035] It should be noted that relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non - exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0036] The features and performance of the present utility model will be further described in detail below in conjunction with the embodiments.

[0037] Embodiment 1

[0038] Please refer to Figure 1-6 , a wind tunnel door locking device for a hydropower station, which specifically includes the following structures:

[0039] A door opening and closing control system and its matching components; the door opening and closing control system is used to be installed on the door body, and the matching components are used to be installed on the door frame; the door opening and closing control system includes: a locking tongue 7, a locking tongue control system, an electromagnet 10 and an electromagnetic control system; the matching components include: a keyhole 12 and an iron block 11; the locking tongue control system is used to control the extension and retraction of the locking tongue 7, and the electromagnetic control system is used to control the on - off of the electromagnet 10; the door opening and closing control system is linked with the electromagnetic control system to jointly realize door opening and closing.

[0040] In this embodiment, specifically, the locking tongue control system includes: an access control card reader 2, a data processing module 3 and a lock - unlocking module; the access control card reader 2 is connected to the data processing module 3, the data processing module 3 is connected to the lock - unlocking module, and the access control card reader 2 is arranged on the outer side of the door body; the access control card reader 2 is linked with the access control system and transmits the authorized passing signal to the data processing module 3.

[0041] In this embodiment, specifically, the switch lock module includes: a stepper motor 5; a gear set is connected to the working end of the stepper motor 5, and a rack 6 that cooperates with the gear set is provided on the lock tongue 7; the stepper motor 5 is connected to the data processing module 3; in this embodiment, the rack 6 and the lock tongue 7 are of an integral structure.

[0042] In this embodiment, specifically, the electromagnetic control system and the lock tongue control system share a data processing module 3; the electromagnet 10 is connected to the data processing module 3, and the data processing module 3 is used to supply power to the electromagnet 10 and receive the normally open and normally closed feedback signals fed back by the electromagnet 10;

[0043] In this embodiment, specifically, the switch lock module further includes: a one-key unlocking button 4, the one-key unlocking button 4 is arranged on the inner side of the door body, and the one-key unlocking button 4 is connected to the data processing module 3;

[0044] In this embodiment, specifically, the switch lock module further includes: an emergency door opening knob, emergency door opening knobs (an external emergency door opening knob 8 and an internal emergency door opening knob 9) are arranged on both the inner and outer sides of the door body, and a gear set that cooperates with the rack 6 is also provided on the emergency door opening knob.

[0045] In this embodiment, specifically, a chute is opened on the door body, one end of the emergency door opening knob is provided with a connecting rod, and a gear set is arranged at the end of the connecting rod; the emergency door opening knob can slide in the chute through the connecting rod, so as to realize the meshing or separation of the gear set and the rack 6.

[0046] In this embodiment, specifically, it further includes: a power supply unit, the power supply unit is connected to the data processing module 3, and supplies power to the data processing module 3, the access control card reader 2, the electromagnet 10, and the stepper motor 5.

[0047] In this embodiment, specifically, the power supply unit is a 12V DC power supply.

[0048] In this embodiment, specifically, a housing 1 is arranged on the door body, and the switch door control system is arranged on the housing 1.

[0049] The working principle of a kind of wind tunnel door lock ingot device of a hydropower station proposed in this embodiment is as follows:

[0050] 1. Normal door opening and closing

[0051] (1) Open the door from the outside

[0052] When opening the door from the outside, the data processing module 3 controls the rotation of the stepping motor 5 according to the authorized passing signal sent by the access control card reader 2, so that the lock tongue 7 retracts from the lock hole 12. After the stepping motor 5 rotates in place, the data processing module 3 controls the electromagnet 10 to cut off the power, and the magnetic lock is unlocked, completing the door opening action.

[0053] (2) Opening the door from the inside

[0054] When opening the door from the inside, the data processing module 3 controls the rotation of the stepping motor 5 according to the door opening signal sent by the one-key unlocking button 4, so that the lock tongue 7 retracts from the lock hole 12. After the stepping motor 5 rotates in place, the data processing module 3 controls the electromagnet 10 to cut off the power, and the magnetic lock is unlocked, completing the door opening action.

[0055] (3) Closing the door normally

[0056] When manually closing the door, the data processing module 3 controls the electromagnet 10 to be energized, and the magnetic lock automatically attracts. The normally closed feedback signal fed back by the electromagnet 10 is fed back to the data processing module 3. After receiving the normally closed feedback signal, the data processing module 3 controls the rotation of the stepping motor 5, so that the lock tongue 7 extends from the lock hole 12 and inserts into the lock hole 12, completing the door closing action.

[0057] 2. Opening and closing the door when the external power supply disappears

[0058] When the power of the wind tunnel door locking device is cut off, at this time the magnetic lock is powered off and automatically unlocked. Press the emergency door opening knob inward to engage the gear set with the rack 6, rotate the emergency door opening knob, and control the lock tongue 7 to retract or extend to complete the door opening or closing action.

[0059] 3. Opening the door from the inside when the internal one-key unlocking button 4 fails

[0060] When the one-key unlocking button 4 fails and opening the door from the inside, press the emergency door opening knob inward to engage the gear set with the rack 6. At the same time, the data processing module 3 controls the electromagnet 10 to cut off the power through the node, and the magnetic lock is unlocked. Then rotate the emergency door opening knob to control the lock tongue 7 to retract to complete the door opening action.

[0061] The above embodiments only represent the specific implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the protection scope of the present application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the technical solution of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application.

[0062] This Background of the Invention section is provided to generally present the context of the present utility model. Work of the presently named inventors, to the extent it is described in this Background of the Invention section, and aspects of the work that are not prior art as of the time of filing this application, are neither expressly nor impliedly admitted to be prior art to the present utility model.

Claims

1. A wind tunnel locking device for a hydropower station, characterized in that, Including: A door opening and closing control system and its matching parts; The door opening and closing control system is used to be installed on the door body, and the matching parts are used to be installed on the door frame; The door opening and closing control system includes: a locking tongue (7), a locking tongue control system, an electromagnet (10) and an electromagnetic control system; the matching parts include: a keyhole (12) and an iron block (11); the locking tongue control system is used to control the extension and retraction of the locking tongue (7), and the electromagnetic control system is used to control the on-off of the electromagnet (10); the door opening and closing control system is linked with the electromagnetic control system to jointly realize door opening and closing.

2. The wind tunnel locking device of a hydropower station according to claim 1, wherein, The locking tongue control system includes: an access control card reader (2), a data processing module (3) and a lock unlocking module; the access control card reader (2) is connected to the data processing module (3), the data processing module (3) is connected to the lock unlocking module, and the access control card reader (2) is arranged on the outer side of the door body.

3. The wind tunnel door locking device of a hydropower station according to claim 2, characterized in that, The lock unlocking module includes: a stepping motor (5); a gear set is connected to the working end of the stepping motor (5), and a rack (6) matching with the gear set is arranged on the locking tongue (7); the stepping motor (5) is connected to the data processing module (3).

4. The wind tunnel door locking device of a hydropower station according to claim 3, characterized in that, The electromagnetic control system shares a data processing module (3) with the locking tongue control system; the electromagnet (10) is connected to the data processing module (3), and the data processing module (3) is used to supply power to the electromagnet (10) and receive the normally open and normally closed feedback signals fed back by the electromagnet (10); When opening the door from the outside, the data processing module (3) controls the stepping motor (5) to rotate according to the authorized passing signal issued by the access control card reader (2), so that the locking tongue (7) retracts from the keyhole (12). After the stepping motor (5) rotates in place, the data processing module (3) controls the electromagnet (10) to cut off the power, and the magnetic lock is unlocked, completing the door opening action; When manually closing the door, the data processing module (3) controls the electromagnet (10) to be powered on, and the magnetic lock automatically attracts. The normally closed feedback signal fed back by the electromagnet (10) is fed back to the data processing module (3). After receiving the normally closed feedback signal, the data processing module (3) controls the stepping motor (5) to rotate, so that the locking tongue (7) extends from the keyhole (12) and inserts into the keyhole (12), completing the door closing action.

5. The wind tunnel door locking device of a hydropower station according to claim 4, characterized in that, The lock unlocking module further includes: an emergency unlocking button (4), the emergency unlocking button (4) is arranged on the inner side of the door body, and the emergency unlocking button (4) is connected to the data processing module (3); When opening the door from the inside, the data processing module (3) controls the stepping motor (5) to rotate according to the door opening signal sent by the emergency unlocking button (4), so that the locking tongue (7) retracts from the keyhole (12). After the stepping motor (5) rotates in place, the data processing module (3) controls the electromagnet (10) to cut off the power, and the magnetic lock is unlocked, completing the door opening action.

6. The locking device for the wind tunnel of a hydropower station according to claim 5, characterized in that, The lock unlocking module further includes: an emergency door opening knob. The emergency door opening knob is arranged on both the inner and outer sides of the door body, and a gear set matching with the rack (6) is also arranged on the emergency door opening knob.

7. The locking device for the wind tunnel of a hydropower station according to claim 6, characterized in that, A chute is provided on the door body. One end of the emergency door opening knob is provided with a connecting rod, and a gear set is arranged at the end of the connecting rod; the emergency door opening knob can slide in the chute through the connecting rod, so as to realize the engagement or separation of the gear set and the rack (6). When the wind tunnel door locking device is powered off, press the emergency door opening knob inward to make the gear set engage with the rack (6), rotate the emergency door opening knob to control the retraction or extension of the lock tongue (7), and complete the door opening or closing action. When the one-key unlocking button (4) fails and the door is opened from the inside, press the emergency door opening knob inward to make the gear set engage with the rack (6). At the same time, the data processing module (3) powers off the node control electromagnet (10) through the node, the magnetic lock is unlocked, and then rotate the emergency door opening knob to control the retraction of the lock tongue (7) to complete the door opening action.

8. A wind tunnel door locking device for a hydropower station according to claim 7, characterized in that It further includes: A power supply unit, which is connected to the data processing module (3) and supplies power to the data processing module (3), the access control card reader (2), the electromagnet (10), and the stepping motor (5).

9. The wind tunnel locking device for a hydropower station according to claim 8, wherein, The power supply unit is a 12V DC power supply.

10. A hydroelectric power station wind tunnel door locking device according to claim 9, characterized in that, A housing (1) is arranged on the door body, and the door opening and closing control system is arranged on the housing (1).

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