A lock with state detection and a state detection method using the lock

Abstract

The present invention discloses a lock with state detection and a state detection method using the lock, which belongs to the field of power transmission and transformation technology. The lock includes a lock body and a lock rod, and also includes a trigger resistor assembly, the trigger resistor assembly includes a first trigger member and a second trigger member, and the first trigger member or the second trigger member is provided with a trigger resistor; the lock body is provided with a detection module and a lock rod channel, the lock rod channel is provided with a first trigger member, and one end of the lock rod is provided with a second trigger member; when the lock rod is inserted into the lock rod channel and inserted into the locking position, the first trigger member and the second trigger member are in contact, and the detection module is used to detect the resistance value of the trigger resistor or the resistance change value of the trigger resistor; the state detection method includes a locking step and an unlocking step. The present invention solves the problem that it is difficult for existing locks and state detection methods to obtain state feedback on whether the lock is locked or unlocked, thereby causing misoperation accidents.

Description

Technical Field

[0001] The present invention relates to the technical field of power transmission and transformation, and in particular to a lock with state detection function and a state detection method using the lock. Background Art

[0002] In the field of power transmission and transformation, many locks require real feedback status. For example, ground wire locks: In order to maintain the safety of power grid operation, lines and electrical equipment need to be tested before being put into use or undergo regular inspection and maintenance. In the inspection and maintenance of electrical equipment, in order to ensure the life safety of operators, temporary ground wires need to be hung before inspection and maintenance, and at the same time, the operation safety of the entire power grid can be guaranteed during the power transmission process after the inspection. In addition, after the inspection is completed, the ground wire needs to be removed before power can be supplied to the electrical equipment. If the ground wire is forgotten to be removed or the ground wire is not really removed, and power is directly supplied, a short circuit accident will occur, damaging the power equipment and power grid facilities. Another example is a fixed lock: the microcomputer anti-error system uses anti-error locking locks to realize the mandatory locking of circuit breakers, disconnectors, grounding switches, ground wires, network doors and cabinet doors to achieve the purpose of preventing misoperation. However, the existing fixed locks cannot obtain the status of the open and closed locks in real time. In substations and distribution networks, there are a large number of network doors and cabinet doors. Since it is impossible to obtain the status of the network doors, cabinet doors and locks at the same time, there is still a risk of "empty operation" of network doors and cabinet doors, and the occurrence of misoperation accidents cannot be avoided. Summary of the invention

[0003] In view of the above-mentioned defects, one object of the present invention is to provide a lock with state detection, which solves the problem that it is difficult to obtain state feedback of whether the lock is locked or unlocked in the existing structure, thereby causing misoperation accidents.

[0004] In view of the above-mentioned defects, another object of the present invention is to propose a state detection method, which solves the problem that it is difficult to obtain state feedback of whether the lock is locked or unlocked in the existing method, thereby causing misoperation accidents.

[0005] To achieve this object, the present invention adopts the following technical solution: a lock with state detection, comprising a lock body and a lock rod, and also comprising a trigger resistor assembly, wherein the trigger resistor assembly comprises a first trigger member and a second trigger member, and the first trigger member or the second trigger member is provided with a trigger resistor;

[0006] The lock body is provided with a detection module and a lock rod channel, the first trigger member is provided in the lock rod channel, and the second trigger member is provided at one end of the lock rod; when the lock rod is inserted into the lock rod channel and inserted to the locked position, the first trigger member and the second trigger member are in contact, and the detection module is used to detect the resistance value of the trigger resistor or the change in the resistance value of the trigger resistor.

[0007] It is worth noting that the lock body is further provided with a lock tongue channel and a lock button portion, the lock tongue channel is communicated with the lock rod channel, a lock tongue portion is slidably provided in the lock tongue channel, the lock button portion is connected to the lock tongue portion, and the lock button portion drives the lock tongue portion to slide in the lock tongue channel;

[0008] A locking groove is provided on one side of the locking rod facing the locking tongue channel. When the locking rod is inserted into the locking position, the locking groove is aligned with the locking tongue channel, and the front end of the locking tongue part is inserted into the locking groove.

[0009] Optionally, the lock button portion is provided with a pin body, the pin body is arranged offset from the rotation axis of the lock button portion, the lock button portion is rotationally connected to the lock tongue portion through the pin body, and the lock button portion is perpendicular to the lock tongue portion.

[0010] Specifically, an elastic mechanism is further provided in the lock tongue channel, one end of the elastic mechanism is connected to the rear end of the lock tongue portion, and the other end of the elastic mechanism is connected to the lock body.

[0011] Preferably, the lock body is further provided with a key socket, a measuring end of the key socket is electrically connected to the detection module, and an unlocking end of the key socket is connected to the lock button portion.

[0012] It is worth noting that the trigger resistor is an identification resistor, and the trigger resistor is electrically connected to the first trigger member, or the trigger resistor is electrically connected to the second trigger member; when the lock rod passes through the lock rod channel and is inserted into the locking position, the first trigger member is electrically connected to the second trigger member;

[0013] When the locking rod is inserted into the locking rod channel and inserted to the locking position, the first trigger member is in contact with the second trigger member, and the detection module is used to detect the resistance value of the trigger resistor.

[0014] Optionally, a first protrusion is provided on the surface of the first trigger member, the first protrusion extends toward the second trigger member, and a first annular groove is formed on the first protrusion; a second protrusion is provided on the surface of the second trigger member, the second protrusion extends toward the first trigger member, and a second annular groove is formed on the second protrusion;

[0015] A first protruding clamp is provided in the first annular groove, a first gap is formed between the first protruding clamp and the first annular groove, and when the first protruding clamp is inserted into the second annular groove, the second protruding portion is clamped into the first gap;

[0016] Alternatively, a second protruding clamp is provided in the second annular groove, and a second gap is formed between the second protruding clamp and the second annular groove. When the second protruding clamp is inserted into the first annular groove, the first protruding portion is clamped into the second gap.

[0017] Specifically, the trigger resistor is a strain sensitive resistor, the trigger resistor is arranged in the lock rod channel through the first trigger member, and the trigger resistor is electrically connected to the detection module;

[0018] The first trigger member is a straight tube structure, the trigger resistor is arranged on the outer wall of the first trigger member, and the second trigger member is interference-fitted with the first trigger member;

[0019] When the locking rod passes through the locking rod channel and is inserted into the locking position, the second triggering member is inserted into the first triggering member, and the detection module is used to detect the resistance change value of the trigger resistor.

[0020] Preferably, the first trigger member comprises a guide channel and a trigger channel, the diameter of the guide channel is larger than the diameter of the locking rod, the diameter of the trigger channel is smaller than the diameter of the locking rod, and the trigger resistor is arranged on the outer wall of the trigger channel;

[0021] The diameter of the guide channel gradually decreases from a direction away from the trigger channel to a direction close to the trigger channel.

[0022] It is worth noting that a state detection method, using the lock with state detection, includes a locking step and an unlocking step:

[0023] The locking steps are:

[0024] A1: A computer key is inserted into the lock body. After the code reading authorization is successful, the computer key drives the lock rod channel to conduct;

[0025] A2: The locking rod drives the second triggering member to insert into the locking rod channel and move toward the direction close to the first triggering member;

[0026] A3: When the locking rod is inserted to the locking position, the first trigger member and the second trigger member are in contact, and the detection module detects the resistance value of the trigger resistor or the resistance change value of the trigger resistor;

[0027] A4: The detection module feeds back the resistance value of the trigger resistor or the resistance change value of the trigger resistor to the computer key, and the computer key generates a feedback result that the lock rod has been locked in the lock body;

[0028] A5: Pull out the computer key from the lock body, the lock rod channel is closed, thereby clamping the lock rod, so that the lock body cannot be unlocked;

[0029] The unlocking steps are:

[0030] B1: The computer key is inserted into the lock body. After the code reading authorization is successful, the computer key drives the lock rod channel to conduct;

[0031] B2: Pulling out the locking rod from the locking rod channel, the locking rod drives the second trigger member to move in a direction away from the first trigger member;

[0032] B3: When the locking rod is pulled out of the locking rod channel, the first trigger component and the second trigger component are separated, and the detection module cannot detect the resistance value of the trigger resistor or the resistance value change of the trigger resistor;

[0033] B4: the computer key cannot receive the resistance value of the trigger resistor or the resistance change value of the trigger resistor fed back by the detection module, and the computer key generates a feedback result that the lock rod has been separated from the lock body;

[0034] B5: Pull out the computer key from the lock body, and the lock rod channel is closed so that the lock body cannot be locked.

[0035] One of the above technical solutions has the following beneficial effects: in the lock with state detection, by setting the first trigger member and the second trigger member, and setting a trigger resistor in the first trigger member or the second trigger member, the detection module is used to detect the resistance value of the trigger resistor or the resistance change value of the trigger resistor to determine whether the first trigger member and the second trigger member are in contact, thereby determining whether the state of the lock rod is inserted into the locked position or in the unlocked position. When the lock is used in a ground wire lock, it can accurately determine whether the ground wire has been completely removed. When the detection module cannot detect the resistance value of the trigger resistor or the resistance change value of the trigger resistor, it is determined that the ground wire has been removed, and then the power supply is operated to avoid the occurrence of short circuit accidents. When the lock is used in a fixed lock, the detection module is used to detect the resistance value of the trigger resistor or the resistance change value of the trigger resistor, and the state of the net door or cabinet door installed with the lock can be indirectly obtained, whether it has been locked or unlocked, thereby avoiding the occurrence of misoperation accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 is a cross-sectional view of a front view of a ground wire lock when locked according to an embodiment of the present invention;

[0037] Figure 2 yes Figure 1 A sectional view of a top view of a ground wire lock;

[0038] Figure 3 yes Figure 1A sectional view of a right side view of a ground wire lock;

[0039] Figure 4 is a cross-sectional view of a front view of a ground wire lock when unlocked according to an embodiment of the present invention;

[0040] Figure 5 yes Figure 1 A schematic diagram of the structure of the trigger resistor component of the ground wire lock;

[0041] Figure 6 is a cross-sectional view of a front view of a ground wire lock when unlocked according to another embodiment of the present invention;

[0042] Figure 7 is a cross-sectional view of a front view of a ground wire lock when locked according to another embodiment of the present invention;

[0043] Figure 8 yes Figure 7 A sectional view of a top view of a ground wire lock;

[0044] Fig. 9 yes Figure 7 A schematic diagram of the structure of the trigger resistor component of the ground wire lock;

[0045] Fig.10 is a cross-sectional view of a front view of a fixed lock when locked according to an embodiment of the present invention;

[0046] Fig.11 yes Fig.10 A sectional view of a right side view of a fixing lock;

[0047] Fig.12 is a cross-sectional view of a front view of a fixed lock when unlocked according to an embodiment of the present invention;

[0048] Fig.13 is a cross-sectional view of a front view of another embodiment of the present invention when the fixed lock is unlocked;

[0049] Fig.14 is a schematic structural diagram of a first trigger member according to an embodiment of the present invention;

[0050] Fig.15 is a schematic structural diagram of a second trigger member according to an embodiment of the present invention;

[0051] Fig.16 is a structural schematic diagram of a first trigger member according to another embodiment of the present invention;

[0052] Fig.17 is a schematic structural diagram of a second trigger member according to another embodiment of the present invention;

[0053] Fig.18 is a schematic structural diagram of a ground wire lock according to an embodiment of the present invention;

[0054] Fig.19 It is a schematic structural diagram of a fixed lock according to an embodiment of the present invention.

[0055] Among them: 1 lock body; 11 lock tongue part; 12 lock button part; 121 pin body; 13 elastic mechanism; 14 detection module; 15 key socket; 16 lock tongue channel; 2 lock rod; 21 locking groove; 22 lock rod channel; 3 trigger resistor assembly; 31 first trigger member; 311 first protrusion; 312 first annular groove; 313 first protruding card; 314 guide channel; 315 trigger channel; 32 second trigger member; 321 second protrusion; 322 second annular groove; 323 second protruding card; 33 trigger resistor; 4 computer key; 5 ground wire head; 6 lock plate; 7 twist handle. DETAILED DESCRIPTION

[0056] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0057] In the description of the present invention, it is necessary to understand that the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of the features, and are used to distinguish and describe features, without distinction of order or importance.

[0058] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] Combine the following Figures 1 to 19, describing a lock with state detection according to an embodiment of the present invention, including a lock body 1 and a lock rod 2, and also including a trigger resistor assembly 3, the trigger resistor assembly 3 including a first trigger member 31 and a second trigger member 32, the first trigger member 31 or the second trigger member 32 is provided with a trigger resistor 33; the lock body 1 is provided with a detection module 14 and a lock rod channel 22, the lock rod channel 22 is provided with the first trigger member 31, and one end of the lock rod 2 is provided with the second trigger member 32; when the lock rod 2 is inserted into the lock rod channel 22 and inserted to the locked position, the first trigger member 31 and the second trigger member 32 are in contact, and the detection module 14 is used to detect the resistance value of the trigger resistor 33 or the resistance change value of the trigger resistor 33.

[0060] In the lock with state detection, by setting the first trigger member 31 and the second trigger member 32, and setting the trigger resistor 33 on the first trigger member 31 or the second trigger member 32, the detection module 14 is used to detect the resistance value of the trigger resistor 33 or the resistance change value of the trigger resistor 33 to determine whether the first trigger member 31 and the second trigger member 32 are in contact, so as to determine whether the state of the lock rod 2 is inserted into the locked position or in the unlocked position. When the lock is applied to the ground wire lock, it can accurately determine whether the ground wire has been completely removed. When the detection module 14 cannot detect the resistance value of the trigger resistor 33 or the resistance change value of the trigger resistor 33, it is determined that the ground wire has been removed, and then the power supply is operated to avoid the occurrence of short circuit accidents. When the lock is applied to the fixed lock, the detection module 14 is used to detect the resistance value of the trigger resistor 33 or the resistance change value of the trigger resistor 33, and the state of the net door or cabinet door installed with the lock can be indirectly obtained, whether it has been locked or unlocked, thereby avoiding the occurrence of misoperation accidents.

[0061] It should be noted that the detection module 14 detects the resistance of the trigger resistor 33, which means that after the lock is unlocked, the first trigger member 31 and the second trigger member 32 are not in contact, and the resistance detected by the detection module 14 is infinite, and after the lock is locked, the first trigger member 31 and the second trigger member 32 are in contact, and the resistance detected by the detection module 14 is the resistance of the trigger resistor 33. Therefore, when the resistance detected by the detection module is the resistance of the trigger resistor 33, it means that the lock is locked, and when the resistance detected by the detection module is infinite, it means that the lock is unlocked.

[0062] The detection module 14 detects the change in the resistance of the trigger resistor 33, which means that the trigger resistor 33 will present two different resistance values ​​when the first trigger member 31 and the second trigger member 32 are in contact and when they are not in contact. After the lock is unlocked, the first trigger member 31 and the second trigger member 32 are not in contact, and the resistance of the trigger resistor 33 detected by the detection module 14 is X ohms. After the lock is locked, the first trigger member 31 and the second trigger member 32 are in contact, and the resistance of the trigger resistor 33 detected by the detection module 14 is Y ohms. Therefore, when the resistance of the trigger resistor 33 detected by the detection module 14 is X ohms, it means that the lock is unlocked, and when the resistance of the trigger resistor 33 detected by the detection module 14 is Y ohms, it means that the lock is locked.

[0063] In some embodiments, Figure 2 , 3 As shown in Figures 8 and 11, the lock body 1 is further provided with a lock tongue channel 16 and a lock button portion 12. The lock tongue channel 16 is communicated with the lock rod channel 22. A lock tongue portion 11 is slidably provided in the lock tongue channel 16. The lock button portion 12 is connected to the lock tongue portion 11, and the lock button portion 12 drives the lock tongue portion 11 to slide in the lock tongue channel 16. A locking groove 21 is provided on the side of the lock rod 2 facing the lock tongue channel 16. When the lock rod 2 is inserted into the locking position, the locking groove 21 is aligned with the lock tongue channel 16, and the front end of the lock tongue portion 11 is stuck in the locking groove 21.

[0064] The lock button portion 12 drives the lock tongue portion 11 to slide in the lock tongue channel 16. At this time, the lock tongue portion 11 slides to the side away from the lock tongue channel 16, and the lock tongue channel 16 is open. The lock rod 2 loses the restriction of the lock tongue portion 11 and can move in the lock tongue channel 16. In one embodiment, the lock rod 2 is pulled out of the lock rod channel 22, thereby realizing the unlocking function of the lock. In another embodiment, the lock rod 2 is inserted into the locking position of the lock rod channel 22. At this time, the locking groove 21 is aligned with the lock tongue channel 16, and then the lock button portion 12 is rotated to make the front end of the lock tongue portion 11 move in the direction of the locking groove 21. Finally, the front end of the lock tongue portion 11 will pass through the lock tongue channel 16 and embed into the lock rod channel 22, thereby being stuck in the locking groove 21, and then clamping the lock rod 2 in the locking position to realize the locking function of the lock.

[0065] It is worth noting that if Figure 2 , 3As shown in FIGS. 8 and 11 , the lock button portion 12 is provided with a pin body 121 , and the pin body 121 is arranged offset from the rotation axis of the lock button portion 12 . The lock button portion 12 is rotationally connected to the lock tongue portion 11 through the pin body 121 , and the lock button portion 12 is perpendicular to the lock tongue portion 11 .

[0066] When the lock button portion 12 is rotated, the lock button portion 12 will drive the pin body 121 to rotate with the lock button portion 12's own rotation axis as the rotation axis. Since the pin body 121 is not arranged at the position of the rotation axis of the lock button portion 12, the pin body 121 deviates from the rotation axis of the lock button portion 12 during rotation. In addition, since the lock button portion 12 is perpendicular to the lock tongue portion 11, it can drive the lock tongue portion 11 to slide linearly in the lock tongue channel 16.

[0067] Alternatively, if Figure 2 , 3 As shown in FIGS. 8 and 11 , an elastic mechanism 13 is further provided in the lock tongue channel 16 , one end of the elastic mechanism 13 is connected to the rear end of the lock tongue portion 11 , and the other end of the elastic mechanism 13 is connected to the lock body 1 .

[0068] Preferably, the elastic mechanism 13 is a spring. Due to the provision of the elastic mechanism 13, when the lock button 12 is rotated to open the lock rod channel 22, the lock tongue 11 slides to the side away from the lock tongue channel 16, and the rear end of the lock tongue 11 pushes the elastic mechanism 13 to compress the elastic mechanism 13. When the lock button 12 stops rotating, the lock tongue 11 loses the restriction of the rotation force of the lock button 12. Under the action of the compression elastic force of the elastic mechanism 13, the elastic mechanism 13 pushes the lock tongue 11 to slide to the side close to the lock tongue channel 16 and embeds into the lock rod channel 22, thereby realizing the function of automatically closing the lock rod channel 22.

[0069] Specifically, Figure 1 , 4 As shown in , 6, 7, 10, 12, 13, 18 and 19, the lock body 1 is also provided with a key socket 15, the measuring end of the key socket 15 is electrically connected to the detection module 14, and the unlocking end of the key socket 15 is connected to the lock button part 12.

[0070] Specifically, the lock is equipped with a computer key 4 paired with it, and the computer key 4 is used to read the unique code of the lock body 1. When the computer key 4 is not inserted into the key socket 15, the front end of the lock button part 12 is embedded in the lock rod channel 22, and the lock tongue channel 16 is in a non-conductive state. When the computer key 4 is inserted into the key socket 15, after the code reading authorization is successful, the computer key 4 is rotated, and the unlocking end of the computer key 4 drives the lock button part 12 to rotate, so that the lock tongue part 11 slides in the lock tongue channel 16, thereby realizing the function of unlocking. After the computer key 4 is inserted into the key socket 15, since the measuring end of the key socket 15 is electrically connected to the detection module 14, the computer key 4 can read in real time whether the detection module 14 detects the resistance value of the trigger resistor 33 or the resistance change value of the trigger resistor 33, so that the staff can know the state position of the lock rod 2 in real time.

[0071] Preferably, Figure 1 , 2 As shown in , 4, 5, 10 and 12, the trigger resistor 33 is an identification resistor, and the trigger resistor 33 is electrically connected to the first trigger member 31, or the trigger resistor 33 is electrically connected to the second trigger member 32; when the locking rod 2 passes through the locking rod channel 22 and is inserted to the locked position, the first trigger member 31 and the second trigger member 32 are electrically connected; when the locking rod 2 is inserted into the locking rod channel 22 and is inserted to the locked position, the first trigger member 31 and the second trigger member 32 are in contact, and the detection module 14 is used to detect the resistance value of the trigger resistor 33.

[0072] like Figure 1 , 2 As shown in , 4 and 5, preferably, the lock is a ground wire lock, and the lock rod 2 is arranged at the ground wire head 5. The two poles of the trigger resistor 33 are connected to the second trigger member 32, the second trigger member 32 is fixed to one end of the lock rod 2, and the first trigger member 31 is fixed in the lock rod channel 22.

[0073] In one embodiment, when the computer key 4 is inserted into the lock body 1 and the lock button portion 12 is rotated after authorization, the lock button portion 12 drives the lock tongue portion 11 to slide, so that the lock rod channel 22 is turned on, and then the ground wire head 5 drives the lock rod 2 to be inserted into the lock rod channel 22, and the trigger resistor 33 is connected to the first trigger member 31 in the lock rod channel 22 through the second trigger member 32. At this time, the detection circuit of the detection module 14 detects the resistance value of the trigger resistor 33, and feeds back the resistance value of the trigger resistor 33 to the computer key 4 through the coil, so that the computer key 4 generates a feedback result that the ground wire head 5 is in a hooked state; if the computer key 4 cannot detect the resistance value of the trigger resistor 33, the computer key 4 generates a feedback result that the ground wire head 5 is in a removed state.

[0074] In another embodiment, when the computer key 4 is inserted into the ground wire lock and the lock button portion 12 is rotated after authorization, the lock button portion 12 drives the lock tongue portion 11 to slide, so that the lock rod channel 22 is turned on, and then the ground wire head 5 drives the lock rod 2 to be inserted into the lock rod channel 22, and the trigger resistor 33 is connected through the first trigger member 31 in the lock rod channel 22 and the first trigger member 31 arranged at one end of the lock rod 2. At this time, the detection circuit of the detection module 14 detects the resistance value of the trigger resistor 33, and feeds back the resistance value of the trigger resistor 33 to the computer key 4 through the coil, so that the computer key 4 generates a feedback result that the ground wire head 5 is in a hanging state; if the computer key 4 cannot detect the resistance value of the trigger resistor 33, the computer key 4 generates a feedback result that the ground wire head 5 is in a removed state.

[0075] like Fig.10 and 12 As shown, preferably, the lock is a fixed lock, and the lock further includes a strike plate 6 and a handle 7. The lock body 1 is fixed to the door, and the strike plate 6 is fixed to the door frame, or the lock body 1 is fixed to the door frame, and the strike plate 6 is fixed to the door, and the lock rod 2 passes through the strike plate 6. One end of the lock rod 2 is provided with the second trigger member 32, and the other end of the lock rod 2 is connected to the handle 7. By pulling the handle 7, the lock rod 2 can slide in the lock rod channel 22, thereby driving the second trigger member 32 to slide. Specifically, the two poles of the trigger resistor 33 are connected to the second trigger member 32, and the first trigger member 31 is fixed in the lock rod channel 22.

[0076] In one embodiment, when the computer key 4 is inserted into the lock body 1 and the lock button portion 12 is rotated after authorization, the lock button portion 12 drives the lock tongue portion 11 to slide, so that the lock rod channel 22 is turned on, and then the handle 7 drives the lock rod 2 to be inserted into the lock rod channel 22, and the trigger resistor 33 is connected to the first trigger member 31 in the lock rod channel 22 through the second trigger member 32. At this time, the detection circuit of the detection module 14 detects the resistance value of the trigger resistor 33, and feeds back the resistance value of the trigger resistor 33 to the computer key 4 through the coil, so that the computer key 4 generates a feedback result that the door is in a closed state; if the computer key 4 cannot detect the resistance value of the trigger resistor 33, then the computer key 4 generates a feedback result that the door is in an open state.

[0077] In another embodiment, when the computer key 4 is inserted into the lock body 1 and the lock button portion 12 is rotated after authorization, the lock button portion 12 drives the lock tongue portion 11 to slide, so that the lock rod channel 22 is turned on, and then the hand 7 drives the lock rod 2 to be inserted into the lock rod channel 22, and the trigger resistor 33 is connected to the second trigger member 32 arranged at one end of the lock rod 2 through the first trigger member 31. At this time, the detection circuit of the detection module 14 detects the resistance value of the trigger resistor 33, and feeds back the resistance value of the trigger resistor 33 to the computer key 4 through the coil, so that the computer key 4 generates a feedback result that the door is in a closed state; if the computer key 4 cannot detect the resistance value of the trigger resistor 33, the computer key 4 generates a feedback result that the door is in an open state.

[0078] In some embodiments, Figure 14-17 As shown, a first protrusion 311 is provided on the surface of the first trigger member 31, the first protrusion 311 extends toward the second trigger member 32, and a first annular groove 312 is formed on the first protrusion 311; a second protrusion 321 is provided on the surface of the second trigger member 32, the second protrusion 321 extends toward the first trigger member 31, and a second annular groove 322 is formed on the second protrusion; a first protrusion clamping piece 313 is provided in the first annular groove 312, and a first gap is formed between the first protrusion clamping piece 313 and the first annular groove 312, and when the first protrusion clamping piece 313 is inserted into the second annular groove 322, the second protrusion 321 is clamped into the first gap;

[0079] Alternatively, a second protruding clamp 323 is provided in the second annular groove 322, and a second gap is formed between the second protruding clamp 313 and the second annular groove 322. When the second protruding clamp 323 is inserted into the first annular groove 312, the first protrusion 311 is inserted into the second gap.

[0080] like Fig.14 and 15In the embodiment shown, when the computer key 4 is inserted into the lock body 1, the lock button portion 12 is rotated after authorization, and the lock button portion 12 drives the lock tongue portion 11 to slide to make the lock rod channel 22 conductive, and then the lock rod 2 is inserted into the lock rod channel 22, and the first protruding clamping member 313 is inserted into the second annular groove 322, the second protruding portion 321 is inserted into the first gap 316, so that the first trigger member 31 and the second trigger member 32 can be effectively electrically connected, and then the trigger resistor 33 can be effectively connected to the detection module 14. The structure of this embodiment can make the first trigger member 31 and the second trigger member 32 clamp more tightly, so that the circuit is not easy to be disconnected.

[0081] like Fig.16 and 17 In another embodiment shown, when the computer key 4 is inserted into the lock body 1, the lock button portion 12 is rotated after authorization, and the lock button portion 12 drives the lock tongue portion 11 to slide to make the lock rod channel 22 conductive, and then the lock rod 2 is inserted into the lock rod channel 22, and the second protruding clamping member 323 is inserted into the first annular groove 312, the first protruding portion 311 is clamped into the second gap 324, so that the second trigger member 32 and the first trigger member 31 can be effectively electrically connected, and then the trigger resistor 33 can be effectively connected to the detection module 14. The structure of this embodiment can make the first trigger member 31 and the second trigger member 32 clamped more tightly, so that the circuit is not easy to be disconnected.

[0082] It is worth noting that if Figure 6 , 7 As shown in , 8, 9 and 13, the trigger resistor 33 is a strain sensitive resistor, the trigger resistor 33 is arranged in the locking rod channel 22 through the first trigger member 31, and the trigger resistor 33 is electrically connected to the detection module 14; the first trigger member 31 is a straight tube structure, the trigger resistor 33 is arranged on the outer wall of the first trigger member 31, and the second trigger member 32 is interference fit with the first trigger member 31; when the locking rod 2 passes through the locking rod channel 22 and is inserted into the locking position, the second trigger member 32 is inserted into the first trigger member 31, and the detection module 14 is used to detect the resistance change value of the trigger resistor 33.

[0083] Specifically, the strain sensitive resistor is a component with elastic deformation, which generates a resistance value in the initial state. When an external force is applied to the strain sensitive resistor, it causes deformation, and the deformation causes the resistance value of the strain sensitive resistor to change. In addition, the first trigger member 31 is made of a material with elastic deformation, such as phosphor bronze springs, brass springs, spring steel, TPE plastic, TPU plastic, PVC plastic, silicone or rubber. Specifically, the two poles of the trigger resistor 33 are connected to the detection module 14.

[0084] like Figure 6-8 As shown, in one embodiment, the lock is a ground wire lock, and the lock rod 2 is arranged at the ground wire head 5. When the computer key 4 is inserted into the lock body 1 and the code reading authorization is successful, the initial resistance value of the trigger resistor 33 is read, wherein the initial resistance value is set by the program to be the ground wire unconnected state or the ground wire removed state, and the initial resistance value of the trigger resistor 33 is detected by the detection module 14 and fed back to the computer key 4 through the coil. At this time, the computer key 4 rotates, driving the lock button part 12 to rotate, and the lock button part 12 drives the lock tongue part 11 to slide, so that the lock rod channel 22 is turned on, and the ground wire head 5 drives the lock rod 2 to insert into the lock rod channel 22. When the ground wire head 5 is inserted and the lock rod 2 drives the second trigger member 32 to enter the first trigger member 31, due to the interference fit between the second trigger member 32 and the first trigger member 31, the first trigger member 31 is elastically deformed. Since the trigger resistor 33 is fixed to the outer wall of the first trigger member 31, when the first trigger member 31 is deformed, the trigger resistor 33 will also be elastically deformed. After the trigger resistor 33 is deformed, its resistance value will also change. At this time, the detection module 14 will detect the resistance change value of the trigger resistor 33 and feed it back to the computer key 4 through the coil. When the computer key 4 reads the resistance change value of the trigger resistor 33, a feedback result that the ground wire head 5 has been successfully hung is generated, wherein the changed resistance value is set by the program as the ground wire hanging state or the ground wire not removed state.

[0085] like Fig.13As shown, in another embodiment, the lock is a fixed lock, and the lock also includes a strike plate 6 and a handle 7. The lock body 1 is fixed on the door, and the strike plate 6 is fixed on the door frame, or the lock body 1 is fixed on the door frame, and the strike plate 6 is fixed on the door, the lock rod 2 passes through the strike plate 6, and one end of the lock rod 2 is provided with the second trigger member 32, and the other end of the lock rod 2 is connected to the handle 7. By pulling the handle 7, the lock rod 2 can slide in the lock rod channel 22, thereby driving the second trigger member 32 to slide. The first trigger member 31 is fixed in the lock rod channel 22. When the computer key 4 is inserted into the lock body 1, after the code reading authorization is successful, the initial resistance value of the trigger resistor 33 is read, wherein the initial resistance value is set by the program as the door is open, and the initial resistance value of the trigger resistor 33 is detected by the detection module 14 and fed back to the computer key 4 through the coil. At this time, the computer key 4 rotates, driving the lock button part 12 to rotate, and the lock button part 12 drives the lock tongue part 11 to slide, so that the lock rod channel 22 is turned on, and the handle 7 drives the lock rod 2 to insert into the lock rod channel 22. When the lock rod 2 drives the second trigger member 32 to enter the first trigger member 31, due to the interference fit between the second trigger member 32 and the first trigger member 31, the first trigger member 31 produces elastic deformation. Since the trigger resistor 33 is fixed to the outer wall of the first trigger member 31, when the first trigger member 31 is deformed, the trigger resistor 33 will also produce elastic deformation accordingly. After the trigger resistor 33 is deformed, its resistance value will also change accordingly. At this time, the detection module 14 will detect the resistance change value of the trigger resistor 33 and feed it back to the computer key 4 through the coil. When the computer key 4 reads the resistance change value of the trigger resistor 33, a feedback result that the door has been successfully closed is generated, wherein the changed resistance value is set as the door closed state by the program.

[0086] Alternatively, if Figure 6 and 9 As shown, the first trigger member 31 includes a guide channel 314 and a trigger channel 315. The diameter of the guide channel 314 is larger than the diameter of the lock rod 2, and the diameter of the trigger channel 315 is smaller than the diameter of the lock rod 2. The trigger resistor 33 is arranged on the outer wall of the trigger channel 315. The diameter of the guide channel 314 gradually decreases from the direction away from the trigger channel 315 to the direction close to the trigger channel 315. Due to the provision of the guide channel 314, when the lock rod 2 is inserted into the first trigger member 31, the lock rod 2 can be inserted into the trigger channel 315 under the guidance of the guide channel 314, thereby improving the efficiency of the lock rod 2 being plugged into the first trigger member 31.

[0087] Specifically, a state detection method, using the lock with state detection, includes a locking step and an unlocking step:

[0088] The locking steps are:

[0089] A1: The computer key 4 is inserted into the lock body 1. After the code reading authorization is successful, the computer key 4 drives the lock rod channel 22 to be turned on;

[0090] A2: The locking rod 2 drives the second triggering member 32 to insert into the locking rod channel 22 and move toward the direction close to the first triggering member 31;

[0091] A3: When the locking rod 2 is inserted to the locking position, the first trigger member 31 and the second trigger member 32 are in contact, and the detection module 14 detects the resistance value of the trigger resistor 33 or the resistance change value of the trigger resistor 33;

[0092] A4: The detection module 14 feeds back the resistance value of the trigger resistor 33 or the resistance change value of the trigger resistor 33 to the computer key 4, and the computer key 4 generates a feedback result that the lock rod 2 is locked in the lock body 1;

[0093] A5: Pull out the computer key 4 from the lock body 1, the lock rod channel 22 is closed to clamp the lock rod 2, so that the lock body 1 cannot be unlocked;

[0094] The unlocking steps are:

[0095] B1: The computer key 4 is inserted into the lock body 1. After the code reading authorization is successful, the computer key 4 drives the lock rod channel 22 to be turned on;

[0096] B2: Pull out the locking rod 2 from the locking rod channel 22, and the locking rod 2 drives the second triggering member 32 to move in a direction away from the first triggering member 31;

[0097] B3: When the locking rod 2 is pulled out of the locking rod channel 22, the first trigger member 31 and the second trigger member 32 are separated, and the detection module 14 cannot detect the resistance value of the trigger resistor 33 or the resistance value change of the trigger resistor 33;

[0098] B4: the computer key 4 cannot receive the resistance value of the trigger resistor 33 or the resistance change value of the trigger resistor 33 fed back by the detection module 14, and the computer key 4 generates a feedback result that the lock rod 2 has been separated from the lock body 1;

[0099] B5: Pull out the computer key 4 from the lock body 1, and the lock rod channel 22 is closed so that the lock body 1 cannot be locked.

[0100] Since the state detection method adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0101] Other structures and operations of a lock with state detection and a state detection method using the lock according to an embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0102] In the description of this specification, the description with reference to the terms "embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0103] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A lock with state detection, comprising a lock body and a lock rod, characterized in that: It also includes a trigger resistor assembly, the trigger resistor assembly includes a first trigger component and a second trigger component, and the first trigger component or the second trigger component is provided with a trigger resistor; The lock body is provided with a detection module and a lock rod channel, the lock rod channel is provided with the first trigger member, and one end of the lock rod is provided with the second trigger member; when the lock rod is inserted into the lock rod channel and inserted into the locking position, the first trigger member and the second trigger member are in contact, and the detection module is used to detect the resistance value of the trigger resistor or the resistance change value of the trigger resistor; The trigger resistor is a strain sensitive resistor, the trigger resistor is arranged in the lock rod channel through the first trigger member, and the trigger resistor is electrically connected to the detection module; The first trigger member is a straight tube structure, the trigger resistor is arranged on the outer wall of the first trigger member, and the second trigger member is interference-fitted with the first trigger member; When the locking rod passes through the locking rod channel and is inserted into the locking position, the second triggering member is inserted into the first triggering member, and the detection module is used to detect the resistance change value of the trigger resistor.

2. A lock with state detection according to claim 1, characterized in that: The lock body is further provided with a lock tongue channel and a lock button portion, wherein the lock tongue channel is communicated with the lock rod channel, a lock tongue portion is slidably provided in the lock tongue channel, the lock button portion is connected with the lock tongue portion, and the lock button portion drives the lock tongue portion to slide in the lock tongue channel; A locking groove is provided on one side of the locking rod facing the locking tongue channel. When the locking rod is inserted into the locking position, the locking groove is aligned with the locking tongue channel, and the front end of the locking tongue part is inserted into the locking groove.

3. A lock with state detection according to claim 2, characterized in that: The lock button part is provided with a pin body, and the pin body is arranged offset from the rotating shaft of the lock button part. The lock button part is rotationally connected with the lock tongue part through the pin body, and the lock button part is perpendicular to the lock tongue part.

4. A lock with state detection according to claim 2, characterized in that: An elastic mechanism is also provided in the lock tongue channel, one end of the elastic mechanism is connected to the rear end of the lock tongue portion, and the other end of the elastic mechanism is connected to the lock body.

5. The lock with state detection according to claim 2, characterized in that: The lock body is further provided with a key socket, a measuring end of the key socket is electrically connected to the detection module, and an unlocking end of the key socket is connected to the lock button portion.

6. The lock with state detection according to claim 1, characterized in that: The trigger resistor is an identification resistor, and the trigger resistor is electrically connected to the first trigger member, or the trigger resistor is electrically connected to the second trigger member; when the lock rod passes through the lock rod channel and is inserted into the locking position, the first trigger member is electrically connected to the second trigger member; When the locking rod is inserted into the locking rod channel and inserted to the locking position, the first trigger member is in contact with the second trigger member, and the detection module is used to detect the resistance value of the trigger resistor.

7. A lock with state detection according to claim 6, characterized in that: A first protrusion is provided on the surface of the first trigger member, the first protrusion extends toward the second trigger member, and a first annular groove is formed on the first protrusion; a second protrusion is provided on the surface of the second trigger member, the second protrusion extends toward the first trigger member, and a second annular groove is formed on the second protrusion; A first protruding clamp is provided in the first annular groove, a first gap is formed between the first protruding clamp and the first annular groove, and when the first protruding clamp is inserted into the second annular groove, the second protruding portion is clamped into the first gap; Alternatively, a second protruding clamp is provided in the second annular groove, and a second gap is formed between the second protruding clamp and the second annular groove. When the second protruding clamp is inserted into the first annular groove, the first protruding portion is clamped into the second gap.

8. The lock with state detection according to claim 1, characterized in that: The first trigger member includes a guide channel and a trigger channel, the diameter of the guide channel is larger than the diameter of the locking rod, the diameter of the trigger channel is smaller than the diameter of the locking rod, and the trigger resistor is arranged on the outer wall of the trigger channel; The diameter of the guide channel gradually decreases from a direction away from the trigger channel to a direction close to the trigger channel.

9. A state detection method, characterized in that: The lock with state detection according to claim 1 comprises a locking step and an unlocking step: The locking steps are: A1: A computer key is inserted into the lock body. After the code reading authorization is successful, the computer key drives the lock rod channel to conduct; A2: The locking rod drives the second triggering member to insert into the locking rod channel and move toward the direction close to the first triggering member; A3: When the locking rod is inserted to the locking position, the first trigger member and the second trigger member are in contact, and the detection module detects the resistance value of the trigger resistor or the resistance change value of the trigger resistor; A4: The detection module feeds back the resistance value of the trigger resistor or the resistance change value of the trigger resistor to the computer key, and the computer key generates a feedback result that the lock rod has been locked in the lock body; A5: Pull out the computer key from the lock body, the lock rod channel is closed, thereby clamping the lock rod, so that the lock body cannot be unlocked; The unlocking steps are: B1: The computer key is inserted into the lock body. After the code reading authorization is successful, the computer key drives the lock rod channel to conduct; B2: Pulling out the locking rod from the locking rod channel, the locking rod drives the second trigger member to move in a direction away from the first trigger member; B3: When the locking rod is pulled out of the locking rod channel, the first trigger component and the second trigger component are separated, and the detection module cannot detect the resistance value of the trigger resistor or the resistance value change of the trigger resistor; B4: the computer key cannot receive the resistance value of the trigger resistor or the resistance change value of the trigger resistor fed back by the detection module, and the computer key generates a feedback result that the lock rod has been separated from the lock body; B5: Pull out the computer key from the lock body, and the lock rod channel is closed so that the lock body cannot be locked.

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