A triangular key and its use method

Abstract

The present invention provides a novel triangular key and a method for using the same, comprising a key rod, wherein one end face of the key rod is provided with a triangular hole matched with a triangular prism of an elevator floor door, an external thread is provided on the left end of an outer peripheral side wall of the key rod, an outer sleeve is sleeved on the key rod, and the key rod rotates freely in the outer sleeve, the cross-section of the key rod is circular, and a plurality of first grooves are arranged in a ring array on the outer peripheral side wall of the key rod with the center of the circle of the key rod as the center; a positioning rod is connected to the outer sleeve, a cylindrical cavity is provided in the positioning rod, a cylindrical pin matched with the first groove is arranged in the cylindrical cavity, the bottom surface of the cylindrical pin is inclined, a compression spring is sleeved on the cylindrical pin, and a second groove is provided on the upper surface of the positioning rod; the present invention can solve the structural limitations of human arms, can realize unlocking by continuous rotation within a small turning angle range, and can solve the problem of unrelated personnel opening the elevator floor door at will in the prior art.

Description

Technical Field

[0001] The invention relates to the technical field of elevator triangular keys, in particular to a triangular key and a use method thereof. Background Art

[0002] The elevator triangular key is a common door opening tool used by elevator maintenance personnel. It is mainly used to open the elevator door during maintenance and emergency situations. In order to prevent non-elevator maintenance personnel from opening the elevator door at will, the elevator door opening knob is usually designed as a triangular cylinder and set in a circular hole. The elevator triangular key has a cylindrical shape, and its end face is provided with a triangular blind hole that matches the elevator door opening knob. The elevator triangular key must be used by personnel who have received professional training or obtained an elevator operator certificate, and other personnel are not allowed to use it. It is strictly forbidden for anyone to give the triangular key to irrelevant personnel for use without authorization. However, the management awareness of the user unit is not strong, and some personnel ignore or are completely unaware of the elevator triangular key management regulations. After obtaining the triangular key, they arbitrarily open the floor, resulting in some safety accidents. And nowadays, if you search for the elevator triangular key on the online shopping platform, you can see that many sellers sell this elevator triangular key on the online platform at will, and ordinary people can buy it at will through online channels. Some people have not received relevant training and do not understand the strict regulations on using triangular keys to open elevator door doors. Individual personnel Figure 1 For convenience, some people buy elevator triangular keys privately, and sometimes lend them to other non-professionals. Ordinary triangular keys are difficult to be operated by a designated person. Once they are operated by mistake, serious accidents may occur. In addition, when the existing triangular keys are used to unlock, if a large stroke is required to unlock the door, it is impossible to unlock the door with one hand due to the structure of the human arm. Or the unlocking position is in a relatively small space. For some unlocking positions that are restricted by buildings or other adjacent objects, the space is small, resulting in the triangular key being unable to achieve 360° free rotation, and the operation is relatively difficult and troublesome. Summary of the invention

[0003] In view of this, in order to overcome the problems existing in the above-mentioned background technology, the purpose of the present invention is to provide a triangular key, which can solve the limitations of the human arm structure and can be continuously rotated within a small angle range to unlock the door, and can solve the problem of unauthorized personnel opening the elevator door at will in the prior art.

[0004] The present invention is implemented by the following method: a triangular key, comprising a key rod, characterized in that: a triangular hole is provided on one end face of the key rod to match the triangular prism of the elevator door, an external thread is provided on the left end of the outer peripheral side wall of the key rod, a sleeve is provided on the key rod, the key rod rotates freely in the sleeve, the cross-section of the key rod is circular, and a plurality of first grooves are provided in a ring array on the outer peripheral side wall of the key rod with the center of the key rod as the center; a positioning rod is connected to the sleeve, a cylindrical cavity is provided in the positioning rod, a cylindrical pin matching the first groove is provided in the cylindrical cavity, the bottom surface of the cylindrical pin is inclined, a compression spring is provided on the cylindrical pin, and the upper surface of the positioning rod is provided with a cylindrical cavity, a cylindrical cavity is provided in the cylindrical cavity, and a cylindrical pin matching the first groove is provided. The bottom surface of the cylindrical pin is inclined, a compression spring is provided on the cylindrical pin, and the upper surface of the positioning rod is provided with a cylindrical cavity. A second groove is provided, and the second groove is communicated with the cylindrical cavity, a through hole matching with the second groove is opened at the upper end of the cylindrical pin, a positioning pin is passed through the through hole, and the positioning pin is limited to the second groove; a first electrode is provided on the triangular prism of the elevator door, and a lock core is provided in the triangular prism of the elevator door, a second electrode matching with the first electrode is provided in the triangular hole, an indicator light and a fingerprint recognition area are provided on the handle of the coat, a circuit board is provided in the coat, an MCU is provided on the circuit board, the MCU is connected with a fingerprint recognition module, a wireless communication module, an indicator light drive circuit and a second electrode drive circuit, and the MCU is connected with a mobile phone via the wireless communication module.

[0005] Furthermore, the left end of the outer peripheral side wall of the key rod is provided with an external thread, and the left end of the outer peripheral side wall of the key rod is provided with a bolt that matches the external thread and prevents the outer sleeve from being separated from the key rod.

[0006] Furthermore, the bottom surface of the cylindrical pin is inclined, and the inclination angle formed between the bottom surface of the cylindrical pin and the horizontal plane is A, and the angle range of the inclination angle A is 55°-70°.

[0007] Furthermore, the depth of the first groove ranges from 4 mm to 6 mm, and the depth of the second groove ranges from 7 mm to 8 mm.

[0008] Furthermore, the second groove is cross-shaped.

[0009] Furthermore, it also includes an APP set on a mobile phone, and the APP has an appointment mode, which is implemented according to the following method: open the APP, the staff enters personal information for identity authentication, after the authentication is completed, the mobile phone inputs a connection signal to connect with the MCU via the wireless communication module, the staff enters the elevator ID that needs to be repaired in the APP, and after confirmation by the main server, the indicator light on the corresponding triangular key lights up red, and a prompt message pops up in the APP, asking the staff whether the triangular key needs to be used. The staff presses yes and enters their own fingerprint information for confirmation. After confirmation, the staff can take out the triangular key with a red light within the specified time, and enter the fingerprint in the fingerprint recognition area of ​​the triangular key. After confirmation by the MCU, the indicator light will flash green, indicating that the MCU has turned on the second electrode and is waiting to be connected.

[0010] Furthermore, the range of the specified time is 10-30 minutes. If the staff does not take out the corresponding triangular key within this time period, the indicator light on the triangular key will turn red and then darken. The staff needs to re-enter the ID of the elevator to be repaired to take the triangular key.

[0011] Furthermore, after the waiting is connected, when the second electrode is connected to the first electrode, the indicator light will be always green, indicating connection, and the staff will rotate the coat to open the elevator door of the elevator.

[0012] Another object of the present invention is to provide a triangular key and a method for using the same, so that the user can better use the triangular key.

[0013] The method for using a triangular key comprises the following steps:

[0014] Step S1: When using, the staff enters the fingerprint in the fingerprint recognition area for identity authentication. After the identity authentication is confirmed,

[0015] The indicator light flashes green, indicating that it is waiting to be connected;

[0016] Step S2, the staff inserts the triangular hole into the triangular cylinder of the elevator door of the elevator to be repaired, so that the first electrode and the second electrode cooperate with each other. After connection, the indicator light is always green, indicating that the first electrode and the second electrode are connected;

[0017] Step S3: The staff member rotates the jacket to drive the key rod to rotate through the cylindrical pin and the first groove on the key rod, thereby opening the elevator floor door to be repaired;

[0018] Step S4, when the elevator floor door to be repaired has been opened, since one end of the cylindrical pin is processed into a 60° inclined surface, the outer sleeve is rotated in the opposite direction, and the first groove can push the cylindrical pin upward, and the key rod will not rotate; after turning a certain angle, the cylindrical pin is pushed out and stuck in the first groove of the key rod under the action of the compression spring, thereby restoring the triangular key to its initial state, waiting for the next use.

[0019] Furthermore, step S4 also includes, when the triangular key needs to change direction, lifting the cylindrical pin upwards until the positioning pin can disengage from the second groove, rotating the positioning pin together with the cylindrical pin 180°, so that the inclined surface of the cylindrical pin contacts the other side of the first groove, and rotating the outer sleeve to achieve the direction change of the triangular key.

[0020] The beneficial effects of the present invention are as follows: the present invention adds the functions of the key rod, the outer coat, the first groove and the cylindrical pin to the device, and the staff can realize the rotation of the key rod by rotating the outer coat, which solves the above-mentioned problem that the key rod can be continuously rotated within a small angle range to realize unlocking due to the limitation of the human arm structure; the second groove and the positioning pin are added to the device, which can realize the change of the positive and negative rotation direction of the outer coat, and better open the elevator floor door; the present invention has a simple structure and convenient operation, can realize unlocking in a very small rotation space, can realize single-handed unlocking, is simpler to operate and has a wider range of working conditions; through the functions of the first electrode, the second electrode and the fingerprint recognition module, the fingerprint of the authorized person is recognized to perform identity authentication, so that the authorized person can insert the triangular key into the first electrode of the elevator floor door emergency unlocking device, so as to smoothly open the elevator floor door, so as to realize safe emergency rescue operation; the use of the triangular key by users who have no authority and do not have safety common sense is restricted, so that the use object of the triangular key can be fundamentally controlled, and the elevator safety accidents caused by arbitrarily obtaining ordinary triangular keys to open the elevator floor door are greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention.

[0022] Figure 2 It is a cross-sectional view in the AA direction.

[0023] Figure 3 It is a cross-sectional view along the BB direction.

[0024] Figure 4 It is a top view of the present invention.

[0025] Figure 5 It is a circuit principle block diagram of the present invention. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the accompanying drawings.

[0027] See also Figures 1 to 5 As shown, the present invention provides an embodiment: a triangular key comprises a key rod 1, wherein one end face of the key rod 1 is provided with a triangular hole 2 which matches with the triangular prism of the elevator landing door, so that the elevator landing door can be opened by rotating the key rod 1, an external thread (not shown) is arranged on the left end of the outer peripheral side wall of the key rod 1, a sleeve 3 is sleeved on the key rod 1, the key rod 1 is freely rotated in the sleeve 3, so that the rotation between the key rod 1 and the sleeve 3 does not interfere with each other, the cross section of the key rod 1 is circular, and the outer peripheral side wall of the key rod 1 is provided with a plurality of first grooves 4 in an annular array with the center of the key rod 1 as the center; a positioning rod 5 is connected to the sleeve 3, a cylindrical cavity 6 is provided in the positioning rod 5, a cylindrical pin 7 which matches with the first groove 4 is arranged in the cylindrical cavity 6, the bottom surface of the cylindrical pin 7 is inclined, and a pressure A compression spring 8 is provided on the upper surface of the positioning rod 5, and the second groove 9 is communicated with the cylindrical cavity 6, a through hole (not shown) matched with the second groove 9 is provided on the upper end of the cylindrical pin 7, and a positioning pin 10 is passed through the through hole, and the positioning pin 10 is limited in the second groove 9; a first electrode is provided on the triangular prism (not shown) of the elevator door, and a lock core is provided in the triangular prism of the elevator door, a second electrode 21 matched with the first electrode is provided in the triangular hole 2, an indicator light 31 and a fingerprint recognition area 32 are provided on the handle of the jacket 3, a circuit board 33 is provided in the jacket 3, an MCU is provided on the circuit board 33, the MCU is connected with a fingerprint recognition module, a wireless communication module, an indicator light drive circuit and a second electrode drive circuit, and the MCU is connected with a mobile phone via the wireless communication module. The cylindrical pin 7 can slide freely up and down in the cylindrical cavity 6; by rotating the outer sleeve 3, the key rod 1 can be driven to rotate through the cylindrical pin 7 and the first groove 4 on the key rod 1; when the outer sleeve 3 is rotated in the opposite direction, the first groove 4 can push the cylindrical pin 7 upward, and the key rod 1 will not rotate. After rotating to a certain angle, the cylindrical pin 7 is pushed out and stuck in the first groove of the key rod 1 under the action of the compression spring 8, and the key rod 1 can be rotated again by rotating the outer sleeve 3.

[0028] The first electrode and the second electrode 21 in the present invention are both communication pins, namely the TXD pin and the RXD pin, which facilitate the first electrode and the second electrode 21 to communicate and connect to open the elevator floor door. The triangular prism of the elevator floor door has a self-locking function and can only be opened after the first electrode and the second electrode 21 communicate, thereby preventing unauthorized personnel from opening the elevator floor door.

[0029] The cylindrical cavity 6 of the present invention extends to the outer sleeve 3 .

[0030] Please continue reading Figure 1 , Figure 2 and Figure 4 As shown, in one embodiment of the present invention, the left end of the outer peripheral side wall of the key rod 1 is provided with an external thread, and the left end of the outer peripheral side wall of the key rod 1 is provided with a bolt 11 that matches the external thread and prevents the outer sleeve 3 from being separated from the key rod 1. The bolt can prevent the key rod from being separated from the outer sleeve.

[0031] Please continue reading Figure 3 As shown, in one embodiment of the present invention, the inclination angle formed between the bottom surface of the cylindrical pin 7 and the horizontal plane is A, and the angle range of the inclination angle A is 55°-70°. The cylindrical pin 7 can continuously cooperate with the first groove 4 through the inclined bottom surface when the outer cover rotates, and press the first groove 4 downward, so that when the staff rotates the outer cover 3, the key rod 1 can be driven to rotate to unlock the elevator door. The angle of inclination A in the present invention is preferably 60°, but is not limited thereto.

[0032] Please continue reading Figure 2 and Figure 3 As shown, in one embodiment of the present invention, the depth of the first groove 4 ranges from 4mm to 6mm, and the depth of the second groove 9 ranges from 7mm to 8mm. In the present invention, the preferred depth of the first groove 4 is 5mm, and the preferred depth of the second groove 9 is 8mm, but it is not limited thereto.

[0033] Please continue reading Figure 4 As shown, in one embodiment of the present invention, the second groove 9 is in a cross shape to achieve an aesthetic effect.

[0034] It also includes an APP set on a mobile phone, and the APP has a reservation mode, which is implemented according to the following method: open the APP, the staff enters personal information for identity authentication, after the authentication is completed, the mobile phone inputs a connection signal to connect to the MCU through the wireless communication module, the staff enters the elevator ID that needs to be repaired in the APP, and after confirmation by the main server, the indicator light on the corresponding triangular key turns red, and a prompt message pops up in the APP, asking the staff whether the triangular key needs to be used. The staff presses yes and enters their own fingerprint information for confirmation. After confirmation, the staff can take out the triangular key with a red light within the specified time, enter the fingerprint in the fingerprint recognition area of ​​the triangular key, and after confirmation by the MCU, the indicator light will flash green, indicating that the MCU has turned on the second electrode and is waiting to be connected. This reservation mode is used by specially authorized staff. Each area elevator has a fixed maintenance personnel. When the staff needs to repair the elevator outside the area under their jurisdiction, the staff needs to make an appointment when using the triangular key.

[0035] The range of the specified time is 10-30 minutes. If the staff does not take out the corresponding triangular key within this time period, the indicator light on the triangular key will turn red and then darken. The staff needs to re-enter the ID of the elevator to be repaired to take the triangular key.

[0036] After the waiting is connected, the indicator light will be always green when the second electrode is connected to the first electrode, indicating connection, and the staff will rotate the coat to open the elevator door of the elevator.

[0037] The method for using a triangular key comprises the following steps:

[0038] Step S1: When using, the staff enters the fingerprint in the fingerprint recognition area for identity authentication. After the identity authentication is confirmed,

[0039] The indicator light flashes green, indicating that it is waiting to be connected;

[0040] Step S2, the staff inserts the triangular hole into the triangular cylinder of the elevator door of the elevator to be repaired, so that the first electrode and the second electrode cooperate with each other. After connection, the indicator light is always green, indicating that the first electrode and the second electrode are connected;

[0041] Step S3: The staff member rotates the jacket to drive the key rod to rotate through the cylindrical pin and the first groove on the key rod, thereby opening the elevator floor door to be repaired;

[0042] Step S4, when the elevator floor door to be repaired has been opened, since one end of the cylindrical pin is processed into a 60° inclined surface, the outer sleeve is rotated in the opposite direction, and the first groove can push the cylindrical pin upward, and the key rod will not rotate; after turning a certain angle, the cylindrical pin is pushed out and stuck in the first groove of the key rod under the action of the compression spring, thereby restoring the triangular key to its initial state, waiting for the next use.

[0043] The step S4 also includes, when the triangular key needs to change direction, lifting the cylindrical pin upward until the positioning pin can be separated from the second groove, rotating the positioning pin and the cylindrical pin 180 degrees, so that the inclined surface of the cylindrical pin contacts the other side of the first groove, and rotating the outer sleeve to achieve the direction change of the triangular key. Figure 3 As shown, in one embodiment of the present invention, Figure 3This is a schematic diagram of the triangular key of the present invention rotating clockwise. The function of the locating pin 10 of the present invention is to adjust the rotation direction of the triangular key. When the triangular key works in the clockwise direction, the inclined bottom surface of the cylindrical pin 7 contacts one side of the first groove 4. When the triangular key needs to work in the counterclockwise direction, the cylindrical pin 7 is lifted up until the locating pin 10 can be disengaged from the second groove 9. The locating pin 10 and the cylindrical pin 7 are rotated 180° together, so that the inclined surface of the cylindrical pin 7 contacts the other side of the first groove 4. The outer sleeve 3 is rotated to realize the counterclockwise operation.

[0044] In the present invention, the wireless communication module model may be Siemens DTD433, the fingerprint recognition module model may be FPM10A optical fingerprint module, and the MCU model may be STM32F2X, but is not limited thereto.

[0045] It is worth mentioning that the key rod in the present invention can be replaced according to the working conditions on site, and can be replaced with a hexagonal or plum blossom rod body, so as to realize the functions of a plum blossom wrench and a hexagonal wrench.

[0046] The above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made according to the scope of the patent application of the present invention should fall within the scope of the present invention.

Claims

1. A triangular key, comprising a key rod, characterized in that: A triangular hole matching with the triangular prism of the elevator door is provided on one end face of the key rod, an external thread is provided on the left end of the outer peripheral side wall of the key rod, a sleeve is provided on the key rod, and the key rod rotates freely in the sleeve, the cross section of the key rod is circular, and a plurality of first grooves are provided in a ring array on the outer peripheral side wall of the key rod with the center of the circle of the key rod as the center; a positioning rod is connected to the sleeve, a cylindrical cavity is provided in the positioning rod, a cylindrical pin matching with the first groove is provided in the cylindrical cavity, the bottom surface of the cylindrical pin is inclined, a compression spring is provided on the cylindrical pin, a second groove is provided on the upper surface of the positioning rod, and the second groove is in contact with the first groove. The cylindrical cavities are interconnected, a through hole matching the second groove is formed at the upper end of the cylindrical pin, a positioning pin is passed through the through hole, and the positioning pin is limited to be located in the second groove; a first electrode is arranged on the triangular prism of the elevator door, and a lock core is arranged in the triangular prism of the elevator door, a second electrode matching the first electrode is arranged in the triangular hole, an indicator light and a fingerprint recognition area are arranged on the handle of the coat, a circuit board is arranged in the coat, an MCU is arranged on the circuit board, the MCU is connected to a fingerprint recognition module, a wireless communication module, an indicator light driving circuit and a second electrode driving circuit, and the MCU is connected to a mobile phone via the wireless communication module.

2. A triangular key according to claim 1, characterized in that: The left end of the outer peripheral side wall of the key rod is provided with an external thread, and the left end of the outer peripheral side wall of the key rod is provided with a bolt which matches with the external thread and prevents the outer sleeve from being separated from the key rod.

3. A triangular key according to claim 1, characterized in that: The bottom surface of the cylindrical pin is inclined, and the inclination angle formed between the bottom surface of the cylindrical pin and the horizontal plane is A, and the angle range of the inclination angle A is 55°-70°.

4. A triangular key according to claim 1, characterized in that: The depth of the first groove ranges from 4 mm to 6 mm, and the depth of the second groove ranges from 7 mm to 8 mm.

5. A triangular key according to claim 1, characterized in that: The second groove is in a cross shape.

6. A triangular key according to claim 1, characterized in that: It also includes an APP set on a mobile phone, and the APP has an appointment mode, which is implemented according to the following method: open the APP, the staff enters personal information for identity authentication, after the authentication is completed, the mobile phone inputs a connection signal to connect with the MCU via the wireless communication module, the staff enters the elevator ID that needs to be repaired in the APP, and after confirmation by the main server, the indicator light on the corresponding triangular key lights up red, and a prompt message pops up in the APP, asking the staff whether the triangular key needs to be used. The staff presses yes and enters their own fingerprint information for confirmation. After confirmation, the staff takes out the triangular key with a red light within the specified time, and enters the fingerprint in the fingerprint recognition area of ​​the triangular key. After confirmation by the MCU, the indicator light will flash green, indicating that the MCU has turned on the second electrode and is waiting to be connected.

7. A triangular key according to claim 6, characterized in that: The range of the specified time is 10-30 minutes. If the staff does not take out the corresponding triangular key within this time period, the indicator light on the triangular key will turn red and then darken. The staff needs to re-enter the ID of the elevator to be repaired to take the triangular key.

8. A triangular key according to claim 6, characterized in that: After the waiting is connected, the indicator light will be always green when the second electrode is connected to the first electrode, indicating connection, and the staff will rotate the coat to open the elevator door of the elevator.

9. A method for using a triangular key according to any one of claims 1 to 6, characterized in that: The following steps are involved: Step S1: When using, the staff enters the fingerprint in the fingerprint recognition area for identity authentication. After the identity authentication is confirmed, The indicator light flashes green, indicating that it is waiting to be connected; Step S2, the staff inserts the triangular hole into the triangular cylinder of the elevator door of the elevator to be repaired, so that the first electrode and the second electrode cooperate with each other. After connection, the indicator light is always green, indicating that the first electrode and the second electrode are connected; Step S3: The staff member rotates the jacket to drive the key rod to rotate through the cylindrical pin and the first groove on the key rod, thereby opening the elevator floor door to be repaired; Step S4, when the elevator floor door to be repaired is opened, since one end of the cylindrical pin is processed into a 60° inclined surface, the outer sleeve is rotated in the opposite direction, and the first groove will push the cylindrical pin upward, and the key rod will not rotate at the same time; after rotating to a certain angle, the cylindrical pin is pushed out and stuck in the first groove of the key rod under the action of the compression spring, thereby restoring the triangular key to its initial state, waiting for the next use.

10. The method for using a triangular key according to claim 9, characterized in that: The step S4 also includes, when the triangular key needs to change direction, lifting the cylindrical pin upwards until the positioning pin is out of the second groove, rotating the positioning pin together with the cylindrical pin 180° so that the inclined surface of the cylindrical pin contacts the other side of the first groove, and rotating the outer sleeve to achieve the direction change of the triangular key.

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