An electrical cabinet door lock

Abstract

The present application relates to the technical field of door lock, specifically relates to an electrical cabinet door lock, including lock body and key, the lock body includes lock cylinder, lock shell, lock shaft, lock tongue and multiple groups of lock core assembly, the lock shell is provided with installation groove accommodating the rotation of lock cylinder and connecting groove accommodating the rotation of lock shaft, the lock cylinder is connected with the lock tongue through the lock shaft, the lock cylinder has non-cylindrical slot, the lock cylinder is provided with separated cavity, the bottom of the separated cavity is provided with heat conduction plate between the slot, the lock shell is provided with corresponding matching hole of the separated cavity, the lock core assembly includes spring, thermal expansion column, pin body, the spring is arranged between the matching hole bottom and the pin body, the thermal expansion column is arranged in the separated cavity, the key includes connector, the connector is provided with groove, the groove is provided with electric heating body, the present application is unlocked by the way of thermal expansion column cooperating with electric heating body, the number, expansion coefficient, length and temperature of the thermal expansion column can be combined, and the diversity and complexity of unlocking are realized.

Description

Technical Field

[0001] This invention relates to the field of door lock technology, specifically to an electrical cabinet door lock. Background Technology

[0002] Electrical cabinets are made of steel and are used to protect components and ensure their proper functioning. They are widely used in industries such as chemical engineering, environmental protection, power systems, metallurgy, industry, nuclear power, fire safety monitoring, and transportation. Electrical cabinet door locks are used to secure and lock the cabinet doors. Currently, each lock requires a single key, which is inconvenient for inspectors. They need to carry a large bunch of keys to open and check each cabinet individually. Furthermore, the keys are all identical and require special marking, which wears down easily, making them difficult to unlock. The key teeth also wear down over time, eventually rendering the key unusable and unable to open the cabinet door. Therefore, a new type of electrical cabinet door lock is needed that is easy to unlock and prevents key failure. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an electrical cabinet door lock that can be easily unlocked and avoids key failure.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0005] An electrical cabinet door lock, comprising a lock body and a key;

[0006] The lock body includes a cylinder, a shell, a pivot, a bolt, and multiple sets of lock cylinder assemblies. The cylinder is cylindrical. The shell includes a front and a back facing each other. The front has a mounting groove for accommodating the rotation of the cylinder, and the back has a connecting groove for accommodating the rotation of the pivot. The diameter of the connecting groove is smaller than that of the mounting groove. The cylinder is connected to the bolt via the pivot, and the bolt is located on the back side of the shell.

[0007] The lock cylinder has a non-cylindrical slot on its front-facing side; the lock cylinder has a number of partition cavities corresponding to the number of lock cylinder assemblies, and a heat insulation plate is provided between each partition cavity; a heat-conducting plate is provided between the bottom of the partition cavity and the slot.

[0008] The lock housing is provided with mating holes corresponding to the partition cavity;

[0009] The lock cylinder assembly includes a spring, a thermal expansion pin, and a pin; the pin is disposed within a mating hole, and the spring is disposed between the bottom of the mating hole and the pin; the thermal expansion pin is disposed within a partition cavity.

[0010] The key includes a body and a connector. The body includes a controller and a battery. The controller is electrically connected to the battery and the connector. The connector has slots in number and position corresponding to the heat-conducting plate. A heating element is installed in each slot. The heating element and the connector are integrated into one piece so that the shape of the connector fits the slot. The controller controls the battery to supply power to the heating element to generate heat. When the controller controls the heating element to heat the thermal expansion column to its predetermined temperature, the thermal expansion column expands due to heat, pushing the pin to the boundary between the connecting slot and the partition cavity. Then, the connector is rotated to unlock.

[0011] Preferably, an identification code is provided on the front of the lock case;

[0012] The device body is one of a mobile phone or a tablet. The device body also includes a recognizer, which is electrically connected to the controller. The recognizer stores control codes corresponding to the recognition codes. When the recognizer recognizes the recognition codes, it calls the corresponding control codes to the controller, and the controller controls the heating of the heating element according to the control codes.

[0013] Preferably, the body further includes an input device, which is electrically connected to the controller and the recognizer;

[0014] When the recognizer cannot recognize the identification code, the identification code is input into the recognizer through the input device for recognition.

[0015] Preferably, the recognizer is a camera; the input device is a touch screen.

[0016] Preferably, the thermal expansion columns of the different lock cylinder assemblies have the same coefficient of thermal expansion, and the lengths of the thermal expansion columns of the different lock cylinder assemblies are different.

[0017] Preferably, the thermal expansion columns of different lock cylinder assemblies have different expansion coefficients, and the thermal expansion columns of different lock cylinder assemblies have the same length.

[0018] Preferably, the connector includes an insertion end and a connection end, and the outer periphery of the mounting end is chamfered; the connection end is provided with a handle;

[0019] The connector's connection end is wired to the machine body.

[0020] Preferably, a heat insulation layer is provided between the groove and the heating element.

[0021] Preferably, a vent hole is provided on the lock housing sidewall corresponding to the bottom of the mounting groove.

[0022] Preferably, a limiting annular groove is provided on the outer periphery of the lock cylinder near the lock shell end;

[0023] The mounting groove is provided with a protruding limiting post corresponding to the limiting annular groove.

[0024] The beneficial effects of this invention are as follows: By using a heat-conducting plate to separate the bottom of the partition cavity from the slot, the slot and its mating connector can be non-cylindrical, thus greatly reducing the probability of the lock becoming unusable due to key wear; by using a key composed of a battery, controller, and connector, one key can be used to unlock different locks by heating, eliminating the need to carry a long bunch of keys when searching; the non-cylindrical slot, without any dead corners, facilitates cleaning and prevents foreign objects from causing lock failure; and the unlocking method uses thermal expansion columns combined with an electric heating element. The thermal expansion columns can be selected in combinations of different expansion coefficients with the same heating temperature, or in combinations of different lengths with the same or different heating temperatures. The number, expansion coefficient, length, and temperature of the thermal expansion columns can be combined to achieve diversity and complexity in unlocking, ensuring that each lock has a different unlocking method and reducing the probability of cracking. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of an electrical cabinet door lock according to Embodiment 1 of the present invention;

[0026] Figure 2 This is a schematic diagram showing the separation of the lock body and key in an electrical cabinet door lock according to Embodiment 1 of the present invention;

[0027] Figure 3 This is a schematic diagram of the structure of an electrical cabinet door lock according to Embodiment 2 of the present invention;

[0028] 1. Lock body; 11. Lock cylinder; 111. Slot; 112. Partition cavity; 113. Heat insulation plate; 114. Heat conduction plate; 115. Limiting annular groove; 12. Lock case; 121. Front; 122. Back; 123. Mounting groove; 124. Connecting groove; 125. Mating hole; 126. Vent hole; 127. Protruding limiting post; 13. Lock shaft; 14. Lock tongue; 15. Lock cylinder assembly; 151. Spring; 152. Thermal expansion pin; 153. Pin;

[0029] 2. Key; 21. Body; 22. Connector; 221. Heating element; 222. Insertion end; 223. Connection end. Detailed Implementation

[0030] To explain in detail the technical content, objectives, and effects of the present invention, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0031] Please refer to Figures 1 to 3 An electrical cabinet door lock, comprising a lock body 1 and a key 2;

[0032] The lock body 1 includes a lock cylinder 11, a lock shell 12, a lock shaft 13, a lock tongue 14, and multiple sets of lock cylinder assemblies 15. The lock cylinder 11 is cylindrical. The lock shell 12 includes a front side 121 and a back side 122 facing each other. The front side 121 has a mounting groove 123 for accommodating the rotation of the lock cylinder 11, and the back side 122 has a connecting groove 124 for accommodating the rotation of the lock shaft 13. The diameter of the connecting groove 124 is smaller than that of the mounting groove 123. The lock cylinder 11 is connected to the lock tongue 14 through the lock shaft 13, and the lock tongue 14 is located on the back side 122 of the lock shell 12.

[0033] The lock cylinder 11 has a non-cylindrical slot 111 on the side facing the front 121; the lock cylinder 11 has a number of partition cavities 112 corresponding to the number of lock cylinder assembly 15, and a heat insulation plate 113 is provided between each partition cavity 112; a heat conduction plate 114 is provided between the bottom of the partition cavity 112 and the slot 111.

[0034] The lock housing 12 is provided with a mating hole 125 corresponding to the partition cavity 112;

[0035] The lock cylinder assembly 15 includes a spring 151, a thermal expansion column 152, and a pin 153; the pin 153 is disposed in a mating hole 125, and the spring 151 is disposed between the bottom of the mating hole 125 and the pin 153; the thermal expansion column 152 is disposed in a partition cavity 112.

[0036] The key 2 includes a body 21 and a connector 22. The body 21 includes a controller and a battery. The controller is electrically connected to the battery and the connector 22. The connector 22 has slots in number and position corresponding to the heat-conducting plate 114. An electric heating element 221 is installed in the slot. The electric heating element 221 and the connector 22 are designed as an integral unit so that the shape of the connector 22 is adapted to the slot 111. The controller controls the battery to supply power to the electric heating element 221 to generate heat. When the controller controls the electric heating element 221 to generate heat and heat the thermal expansion column 152 to its respective predetermined temperature, the thermal expansion column 152 expands due to heat and lifts the pin 153 to the boundary between the connecting groove 124 and the partition cavity 112. Then, the connector 22 is rotated to unlock the key.

[0037] As described above, by using a heat-conducting plate 114 to separate the bottom of the partition cavity 112 from the slot 111, the slot 111 and the mating connector 22 can be non-cylindrical in shape, which greatly reduces the probability of the key 2 becoming worn and unable to open the lock. By using a key 2 composed of a battery, controller, and connector 22, one key 2 can be used to unlock different locks by heating, eliminating the need to carry a long bunch of keys 2 when searching. The non-cylindrical slot 111, without any dead corners, is easy to clean, preventing foreign objects from causing the lock body 1 to malfunction. Furthermore, the unlocking method uses thermal expansion columns 152 in conjunction with heating elements 221. The thermal expansion columns 152 can be selected with different expansion coefficients combined with the same heating temperature, or with different lengths of thermal expansion columns 152 combined with the same or different heating temperatures. The number, expansion coefficient, length, and temperature of the thermal expansion columns 152 can be combined to achieve diversity and complexity in unlocking, ensuring that each lock has a different unlocking method and reducing the probability of cracking.

[0038] Furthermore, an identification code is provided on the front side 121 of the lock case 12;

[0039] The body 21 is a mobile phone or a tablet. The body 21 also includes a recognizer. The recognizer is electrically connected to the controller. The recognizer stores control codes corresponding to the recognition codes. When the recognizer recognizes the recognition codes, it calls the corresponding control codes to the controller. The controller controls the heating element 221 to generate heat according to the control codes.

[0040] As can be seen from the above description, by setting up the recognizer, it is possible to easily recognize the identification code and improve efficiency.

[0041] Furthermore, the body 21 also includes an input device, which is electrically connected to the controller and the recognizer;

[0042] When the recognizer cannot recognize the identification code, the identification code is input into the recognizer through the input device for recognition.

[0043] As can be seen from the above description, by setting the input device, it is possible to avoid the recognition device becoming damaged and unable to recognize.

[0044] Furthermore, the identifier is a camera; the input device is a touch screen.

[0045] Furthermore, the thermal expansion columns 152 of the different lock cylinder assemblies 15 have the same coefficient of thermal expansion, and the lengths of the thermal expansion columns 152 of the different lock cylinder assemblies 15 are different.

[0046] Furthermore, the thermal expansion columns 152 of different lock cylinder assemblies 15 have different expansion coefficients, and the thermal expansion columns 152 of different lock cylinder assemblies 15 have the same length.

[0047] Furthermore, the connector 22 includes an insertion end 222 and a connection end 223, and the outer periphery of the mounting end is provided with a chamfer; the connection end 223 is provided with a handle;

[0048] The connector 22's connecting end 223 is wired to the body 21.

[0049] As can be seen from the above description, the chamfered design allows the insertion end 222 to be easily inserted into the mounting slot 123; the handle design allows the connector 22 to be easily turned, i.e., used as a normal key 2; the wired connection allows the key 2 to be integrated, preventing the connector 22 from being lost, while also facilitating power supply and control.

[0050] Furthermore, a heat insulation layer is provided between the groove and the heating element 221.

[0051] As can be seen from the above description, by setting up the heat insulation layer, interference with other heat-generating elements can be avoided when the heating element 221 is heating up.

[0052] Furthermore, a vent hole 126 is provided on the side wall of the lock case 12 corresponding to the bottom of the mounting groove 123.

[0053] As can be seen from the above description, the vent 126 facilitates the insertion of the connector 22 and avoids the inability to insert due to air pressure issues.

[0054] Furthermore, a limiting annular groove 115 is provided on the outer periphery of the lock cylinder 11 near the lock shell 12;

[0055] The mounting groove 123 is provided with a protruding limiting post 127 corresponding to the limiting annular groove 115.

[0056] As can be seen from the above description, the locking cylinder 11 and the lock shell 12 can be prevented from separating by the limiting annular groove 115 and the corresponding protruding limiting post 127. Example 1

[0057] An electrical cabinet door lock includes a lock body 1 and a key 2;

[0058] The lock body 1 includes a lock cylinder 11, a lock shell 12, a lock shaft 13, a lock tongue 14, and multiple sets of lock cylinder assemblies 15. The lock cylinder 11 is cylindrical. The lock shell 12 includes a front side 121 and a back side 122 facing each other. The front side 121 has a mounting groove 123 for accommodating the rotation of the lock cylinder 11, and the back side 122 has a connecting groove 124 for accommodating the rotation of the lock shaft 13. The diameter of the connecting groove 124 is smaller than that of the mounting groove 123. The lock cylinder 11 is connected to the lock tongue 14 through the lock shaft 13, and the lock tongue 14 is located on the back side 122 of the lock shell 12.

[0059] The lock cylinder 11 has a non-cylindrical slot 111 on the side facing the front 121; the lock cylinder 11 has a number of partition cavities 112 corresponding to the number of lock cylinder assembly 15, and a heat insulation plate 113 is provided between each partition cavity 112; a heat conduction plate 114 is provided between the bottom of the partition cavity 112 and the slot 111.

[0060] The lock housing 12 is provided with a mating hole 125 corresponding to the partition cavity 112;

[0061] The lock cylinder assembly 15 includes a spring 151, a thermal expansion column 152, and a pin 153; the pin 153 is disposed in a mating hole 125, and the spring 151 is disposed between the bottom of the mating hole 125 and the pin 153; the thermal expansion column 152 is disposed in a partition cavity 112.

[0062] The key 2 includes a body 21 and a connector 22. The body 21 includes a controller and a battery. The controller is electrically connected to the battery and the connector 22. The connector 22 has slots in number and position corresponding to the heat-conducting plate 114. An electric heating element 221 is installed in the slot. The electric heating element 221 and the connector 22 are designed as an integral unit so that the shape of the connector 22 is adapted to the slot 111. The controller controls the battery to supply power to the electric heating element 221 to generate heat. When the controller controls the electric heating element 221 to generate heat and heat the thermal expansion column 152 to its respective predetermined temperature, the thermal expansion column 152 expands due to heat and lifts the pin 153 to the boundary between the connecting groove 124 and the partition cavity 112. Then, the connector 22 is rotated to unlock the key.

[0063] An identification code is provided on the front 121 of the lock case 12;

[0064] The body 21 is a mobile phone or a tablet. The body 21 also includes a recognizer. The recognizer is electrically connected to the controller. The recognizer stores control codes corresponding to the recognition codes. When the recognizer recognizes the recognition codes, it calls the corresponding control codes to the controller. The controller controls the heating element 221 to generate heat according to the control codes.

[0065] The body 21 also includes an input device, which is electrically connected to the controller and the identifier;

[0066] When the recognizer cannot recognize the identification code, the identification code is input into the recognizer through the input device for recognition.

[0067] The identifier is a camera; the input device is a touch screen.

[0068] The thermal expansion columns 152 of the different lock cylinder assemblies 15 have the same coefficient of thermal expansion, and the lengths of the thermal expansion columns 152 of the different lock cylinder assemblies 15 are different.

[0069] The connector 22 includes an insertion end 222 and a connection end 223. The outer periphery of the mounting end is chamfered, and the connection end 223 is provided with a handle.

[0070] The connector 22's connecting end 223 is wired to the body 21.

[0071] A heat insulation layer is provided between the groove and the heating element 221.

[0072] A vent hole 126 is provided on the side wall of the lock case 12 corresponding to the bottom of the mounting groove 123.

[0073] A limiting annular groove 115 is provided on the outer periphery of the lock cylinder 11 near the lock shell 12;

[0074] The mounting groove 123 is provided with a protruding limiting post 127 corresponding to the limiting annular groove 115. Example 2

[0075] An electrical cabinet door lock, which is similar to Embodiment 1 and will not be described again, differs in that:

[0076] The thermal expansion columns 152 of different lock cylinder assemblies 15 have different expansion coefficients (which can be achieved by different materials, such as aluminum (and corresponding alloys), iron (and corresponding alloys), zinc (and corresponding alloys), and plexiglass, as long as the expansion coefficients are different, plexiglass is the best because it is low in cost and has obvious thermal expansion), and the thermal expansion columns 152 of different lock cylinder assemblies 15 have the same length.

[0077] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent modifications made based on the content of the present invention specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An electrical cabinet door lock, characterized in that, Includes the lock body and the key; The lock body includes a cylinder, a shell, a pivot, a bolt, and multiple sets of lock cylinder assemblies. The cylinder is cylindrical. The shell includes a front and a back facing each other. The front has a mounting groove for accommodating the rotation of the cylinder, and the back has a connecting groove for accommodating the rotation of the pivot. The diameter of the connecting groove is smaller than that of the mounting groove. The cylinder is connected to the bolt via the pivot, and the bolt is located on the back side of the shell. The lock cylinder has a non-cylindrical slot on its front-facing side; the lock cylinder has a number of partition cavities corresponding to the number of lock cylinder assemblies, and a heat insulation plate is provided between each partition cavity; a heat-conducting plate is provided between the bottom of the partition cavity and the slot. The lock housing is provided with mating holes corresponding to the partition cavity; The lock cylinder assembly includes a spring, a thermal expansion pin, and a pin; the pin is disposed within a mating hole, and the spring is disposed between the bottom of the mating hole and the pin; the thermal expansion pin is disposed within a partition cavity. The key includes a body and a connector. The body includes a controller and a battery. The controller is electrically connected to the battery and the connector. The connector has slots in number and position corresponding to the heat-conducting plate. A heating element is installed in each slot. The heating element and the connector are integrated into one piece so that the shape of the connector fits the slot. The controller controls the battery to supply power to the heating element to generate heat. When the controller controls the heating element to heat the thermal expansion column to its predetermined temperature, the thermal expansion column expands due to heat, pushing the pin to the boundary between the connecting slot and the partition cavity. Then, the connector is rotated to unlock.

2. The electrical cabinet door lock according to claim 1, characterized in that, An identification code is provided on the front of the lock case; The device body is one of a mobile phone or a tablet. The device body also includes a recognizer, which is electrically connected to the controller. The recognizer stores control codes corresponding to the recognition codes. When the recognizer recognizes the recognition codes, it calls the corresponding control codes to the controller, and the controller controls the heating of the heating element according to the control codes.

3. The electrical cabinet door lock according to claim 2, characterized in that, The machine body also includes an input device, which is electrically connected to the controller and the identifier; When the recognizer cannot recognize the identification code, the identification code is input into the recognizer through the input device for recognition.

4. The electrical cabinet door lock according to claim 3, characterized in that, The identifier is a camera; the input device is a touch screen.

5. The electrical cabinet door lock according to claim 1, characterized in that, The thermal expansion columns of the different lock cylinder assemblies have the same coefficient of thermal expansion, but the lengths of the thermal expansion columns of the different lock cylinder assemblies are different.

6. The electrical cabinet door lock according to claim 1, characterized in that, The thermal expansion columns of the different lock cylinder assemblies have different expansion coefficients, and the thermal expansion columns of the different lock cylinder assemblies have the same length.

7. The electrical cabinet door lock according to claim 1, characterized in that, The connector includes an insertion end and a connection end, wherein the outer periphery of the insertion end is chamfered and the connection end is provided with a handle; The connector's connection end is wired to the machine body.

8. The electrical cabinet door lock according to claim 1, characterized in that, There is a heat insulation layer between the groove and the heating element.

9. The electrical cabinet door lock according to claim 1, characterized in that, Ventilation holes are provided on the lock housing sidewall corresponding to the bottom of the mounting groove.

10. The electrical cabinet door lock according to claim 1, characterized in that, A limiting annular groove is provided on the outer periphery of the lock cylinder near the lock shell end; The mounting groove is provided with a protruding limiting post corresponding to the limiting annular groove.

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