A handle spindle for a keyless entry device

Abstract

A handle rotating shaft capable of being used for a lock opener, comprising a handle connecting end, a lock panel mounting section, a handle reset spring stress section and a lock opening square stick insertion hole, characterized in that an axle lock pulling rope through hole capable of allowing a lock pulling rope to penetrate is arranged on the handle rotating shaft between the handle connecting end and the lock opening square stick insertion hole. The utility model can be used alone or made into a same body with a door opening handle or a handle in a door. The utility model can be widely used in the field of mechanical or electronic door locks.

Description

Technical Field

[0001] This utility model is a divisional application of patent application number 202421631902.0, entitled "A Lock Picker Containing a Bimetallic Device and a Handle Shaft for Use in a Lock Picker". This utility model relates to the field of doors and door locks, and is a lock picker that can be easily installed on the outside of an interior door and can automatically assist the lock in entering the unlocking state or performing the required unlocking when exposed to critical high temperatures in a fire; that is, a lock pick containing a bimetallic device. This utility model also relates to a handle shaft that can be used to integrate the lock pick and the rotatable door handle inside the door; that is, a handle shaft for use in a lock pick. Background Technology

[0002] In a product described in patent number CN202022523830.6, entitled "A lock pick that can be installed on the outside of an indoor door and releases stored spring force when exposed to high temperatures during a fire," the inner side of the locking buckle is V-shaped and can rotate around its buckle axis. The locking buckle mechanism that controls the locking buckle to lock or release the stored spring force is subjected to the tension from the stored spring in the stored state. For a lock pick that requires ultra-strong stored spring force, the reliability of this mutual tension is not as strong as the reliability of the mutual bearing capacity.

[0003] This utility model improves upon a product in the aforementioned patent, such that the locking mechanism that controls the locking buckle to lock or release the energy storage spring's elasticity bears the pressure generated by the energy storage spring in its energy storage state, thus reliably locking the elasticity of the super-strong energy storage spring. This facilitates the manufacture and application of unlocking devices that require the installation of super-strong energy storage springs. A further improvement of this utility model is that it can be integrated with an interior door handle or an interior door rotatable handle. To this end, this utility model also provides a handle shaft that integrates the unlocking device with the interior door rotatable handle. This handle shaft can be used in this utility model, as well as in the aforementioned patent or other unlocking devices.

[0004] This utility model has a simple structure, is easy to manufacture, has reliable performance, and is convenient to use. It can be used independently on the outside of interior doors, or it can be integrated with interior door handles, escape door handles or levers, and interior door pulls. This utility model can be widely used in fireproof door locks and doors made for mechanical or electronic door locks, such as fireproof and burglarproof doors, fireproof room doors, fireproof doors for shopping malls, office buildings, cinemas, kindergartens, etc., and related locks, and has broad market prospects. Summary of the Invention

[0005] To achieve the above objectives, a technical solution for a lock pick containing a bimetallic device includes: an outer cover, an inner cover, an energy storage spring, a bimetallic device, a locking buckle, a locking buckle mechanism, and a locking pin, as well as a pull rope. The locking buckle has a recessed locking groove. The bimetallic device is located on the outer side near the outer cover. An energy storage spring is located on one side of the outer cover and the inner cover. One end of the energy storage spring and one side of the outer cover and the inner cover serve as a support point for the energy storage force. The other end of the energy storage spring is connected to a locking pin for energy storage and locking. This locking pin can also cooperate with the locking groove in the locking buckle as... Another support point for the energy storage spring's stored elastic force; the locking pin is a convex cylindrical shape, with a manual energy storage button on one side containing a pressure-bearing step, allowing manual pushing of the locking pin and deformation of the energy storage spring to store energy. A locking pin groove is also provided in the outer cover and inner cover plate, allowing the locking pin to perform directional reciprocating motion, so that the locking pin can cooperate with the locking slot in the locking buckle to lock and release the stored elastic force of the energy storage spring. The locking buckle also has a rotating shaft that allows it to rotate, and the locking buckle is mounted on the inner side of the outer cover and inner cover plate via its rotating shaft. The locking buckle also has a convenient... The locking pin enters the latch slot and a return spring is provided; the unlocking pull rope is connected to the end of the energy storage spring that can release the stored elastic force. The outer cover and inner cover plate also have an unlocking pull rope through hole to lead the unlocking pull rope into the lock. The characteristic is that: on the other side of the latching pin corresponding to the latch slot of the locking pin, there is a locking platform that corresponds to and cooperates with the locking pin mechanism to control the rotation of the locking pin and implement the locking and releasing of the energy storage spring force. The locking pin mechanism is columnar in shape, with a rotating shaft that allows it to rotate and a return spring that allows it to reset between its two ends. The locking mechanism is installed inside the outer cover and inner cover via its locking mechanism pivot. One end of the locking mechanism has a top head that can cooperate with the locking buckle's locking platform, and the other end of the locking mechanism is connected to one end of the bimetallic device. The locking buckle can be displaced by the thermal deformation of the bimetallic device, thus breaking free from the pressure support control of the energy storage spring on the locking platform and the top head. This allows the locking buckle to rotate around its locking axis, causing the locking pin to disengage from the locking groove in the locking buckle. This allows the energy storage spring to release its energy storage force, driving the unlocking rope to achieve the required unlocking.

[0006] The bimetallic device is a heat-shrinkable metal wire of nickel-titanium alloy. The heat-shrinkable metal wire can be arranged on the outer side near the outer cover. One end of the heat-shrinkable metal wire can be directly or indirectly fixed to the outer cover or inner cover plate, and the other end of the heat-shrinkable metal wire can be directly or indirectly connected to the locking buckle mechanism. Alternatively, the bimetallic device is a snap-action device that can generate sudden deformation tension under a certain temperature difference. One end of the snap-action device is connected and fixed to the outer cover, and the end of the snap-action device that can generate the required deformation amplitude is connected to the locking buckle mechanism through a pull rope.

[0007] The unlocking pull rope can be installed on the locking post, or it can be installed on the side connected to the locking post to form a manual energy storage button, or on the end of the energy storage spring that can release the energy storage force, as needed.

[0008] The unlocking pull cord is provided with a cord tube on the outside. The cord tube can be a flexible hose that can be bent but is difficult to compress, or a rigid tube or grooved tube that cannot be bent. One end of the cord tube can be connected and fixed to the outer cover or inner cover plate, and the other end of the cord tube can be directly or indirectly connected and fixed to the inside of the lock panel or the inside of the door body. The unlocking pull cord can be directly or indirectly connected to the unlocking component or the unlocking lever arm in the lock by passing through the cord tube.

[0009] The unlocking pull rope hole is located on the inner cover plate. The unlocking pull rope and rope tube can pass through the unlocking pull rope hole of the inner cover plate into the lock. The outer cover and inner cover plate are integrally designed with the door handle or inner door handle that is fixed inside the door and cannot be rotated.

[0010] An isolation bracket is provided on one side of the outer cover and inner cover to keep the bimetallic device at a certain distance from the door or lock panel.

[0011] On the outer side of the inner cover plate with a hole for the unlocking rope, there is a handle bend that can connect the outer cover and the inner cover plate to the handle shaft or handle pivot of the door handle.

[0012] The present invention provides a technical solution for a handle shaft for use in a lock pick, comprising: a handle connecting end that can be connected to the handle bend, a lock panel mounting section, a handle return spring force-bearing section, and a lock pick square rod insertion hole. The feature is that a shaft unlocking pull rope through hole is provided on the outer side of the handle shaft between the handle connecting end and the lock pick square rod insertion hole, allowing the unlocking pull rope to pass through.

[0013] The shaft unlocking pull rope hole has a nut hole or a stud on the outside for mounting the rope tube on the handle shaft; or a hollow nut or a hollow stud on the inside or outside of the shaft unlocking pull rope hole for mounting the rope tube on the handle shaft; or a male plug or a female slot on the outside of the shaft unlocking pull rope hole for mounting the rope tube on the handle shaft; or a female sliding buckle groove or a male sliding buckle head on the outside of the shaft unlocking pull rope hole for mounting the rope tube on the handle shaft.

[0014] The unlocking cord hole is located on the outer cover. On the outside of the unlocking cord hole, there is a handle bend that can be used to connect the outer cover and inner cover plate to the door handle of the lock, and to connect the outer cover and the handle shaft. The handle bend can be fixedly connected to the handle connection end of the handle shaft with the unlocking cord hole. The unlocking cord hole communicates with the shaft unlocking cord hole in the handle shaft. On the outside of the handle shaft, there is a cord tube that communicates with the shaft unlocking cord hole and allows the unlocking cord to pass through. Attached image description:

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a schematic diagram of the principle structure of an embodiment of the present invention in the energy storage and locking state.

[0017] Figure 2 yes Figure 1 A schematic diagram of the principle structure in the energy storage and release state.

[0018] Figure 3 This is a schematic diagram of the principle structure of another embodiment of this utility model in the energy storage and locking state.

[0019] Figure 4 It can be used Figure 1 , Figure 2 , Figure 3 A schematic diagram of one of the inner cover plates.

[0020] Figure 5 It can also be used Figure 1 , Figure 2 , Figure 3 A schematic diagram of an inner cover plate containing a handle bend.

[0021] Figure 6 This is another embodiment of the present invention, in which a handle bend and a handle shaft are connected to each other on the outer cover shell. The schematic diagram of the principle structure is shown in a cross-section on the left side in the energy storage and locking state.

[0022] Figure 7This is another embodiment of the present invention, in which a handle bend and another handle shaft are connected to each other on the outer cover. The schematic diagram of the principle structure is shown in a cross-section on the left side in the energy storage and locking state.

[0023] Figure 8 It can be regarded as Figure 6 and Figure 7 A schematic diagram of the main view principle structure.

[0024] Figure 9 This is a schematic diagram of the left-side cross-sectional view of the principle structure of the application of the handle shaft, the unlocking rope, and the rope tube of this utility model.

[0025] Figure 10 This is a schematic diagram of the left-side cross-sectional view of the principle structure of the application of this utility model, showing the connection and installation of the handle shaft, the unlocking rope, and the rope tube.

[0026] Figure 11 This is a schematic diagram of the main view principle structure of another handle shaft of this utility model.

[0027] Figure 12 yes Figure 10 A schematic diagram of the working principle structure of the handle pivot, the unlocking rope, and the rope tube.

[0028] Figure 13 This is a schematic diagram of the principle structure of the handle shaft and rope tube in another installation application of this utility model, viewed from the left side.

[0029] Figure 14 This is a schematic diagram of the principle structure of the handle shaft and rope tube, which is another part of the installation and application of this utility model. (Left side cross-section view)

[0030] Figure 15 This is a schematic diagram illustrating the principle and structure of another installation application of the handle shaft and rope tube of this utility model.

[0031] Figure 16 This is a schematic diagram of the principle structure of the handle shaft and rope tube, which is another part of the installation and application of this utility model. (Left side cross-section view)

[0032] Figure 17 This is a schematic diagram of the principle structure of the handle shaft and rope tube of this utility model, which is a part of another installation application.

[0033] In the diagram: 1. Outer cover, 10. Locking pin groove, 11. Shell screw hole, 16. Button groove, 17. Manual accumulator button, 170. Force button, 2. Inner cover plate, 20. Unlocking pull rope hole, 21. Cover plate screw hole, 23. Buckle shaft mounting hole, 24. Buckle mechanism shaft mounting hole, 25. Handle elbow, 3. Accumulator spring, 30. Rope tube, 31. Unlocking pull rope, 32. Connecting buckle. 34. Rope threading tube fixing end; 36. Rope pull return spring; 37. Pressure bearing step; 38. Rope threading tube connecting end; 39. Stud hole; 4. Bimetallic device; 41. Heat shrinkable metal wire; 43. Snap-on device; 5. Locking buckle; 50. Locking post; 51. Locking buckle mechanism; 510. Buckle mechanism pivot; 52. Mechanism return spring; 53. Protrusion; 54. Buckle pivot; 55. Mechanism pull rope; 56. Lock. 57. Slot, 58. Reset spring, 59. Top head, 60. Locking platform, 61. Handle shaft, 62. Shaft unlocking pull rope hole, 63. Handle connecting end, 64. Lock panel mounting section, 65. Handle reset spring force section, 66. Unlocking square bar insertion hole, 67. Hollow nut, 68. Hollow stud, 69. Nut hole, 60. Stud, 61. Female sliding buckle slot, 62. Male sliding buckle head, 63. Nut, 74. Lock panel, 75. Handle shaft reset spring locking point, 76. Panel reset spring locking point, 77. Handle reset spring, 78. Limiting horn, 79. Pressure arm, 70. Female slot, 71. Male plug, 72. Spring clip, 73. Handle connecting screw, 74. Female screw hole, 75. Shaft handle connecting screw hole, 76. Connecting bolt, 77. Connecting nut, 78. Connecting bolt mounting hole. Detailed Implementation

[0034] like Figure 1 or Figure 2 or Figure 3 And its compatible components Figure 4 or Figure 5 , Figure 6 and Figure 8 , Figure 7 and Figure 8As shown in the figure, the components include: an outer cover 1, an inner cover 2, an energy storage spring 3, a bimetallic device 4, a locking buckle 5, a locking buckle mechanism 51, and a locking pin 50, as well as an unlocking pull rope 31. The locking buckle 5 has a recessed locking groove 56. The bimetallic device 4 is located on the outer side near the outer cover 1. The energy storage spring 3 is located on one side of the outer cover 1 and the inner cover 2. One end of the energy storage spring 3 serves as a support point for the energy storage force, and the other end of the energy storage spring 3 is connected to a locking pin 50 for locking the energy storage spring 3. This locking pin 50 can also cooperate with the locking groove 56 in the locking buckle 5 as another support point for the energy storage force of the energy storage spring 3. The locking post 50 is a convex cylindrical shape. On one side of the locking post 50 is a manual energy-storing button 17 containing a pressure-bearing step 37, allowing manual pushing of the locking post 50 and deformation of the energy-storing spring 3 to store energy. A locking post groove 10 is also provided in the outer cover 1 and inner cover 2, allowing the locking post 50 to perform directional reciprocating motion. This allows the locking post 50 to cooperate with the locking groove 56 in the locking buckle 5 to lock and release the stored energy force of the energy-storing spring 3. The locking buckle 5 also has a rotating shaft 54, which allows it to rotate. The locking buckle 5 is mounted inside the outer cover 1 and inner cover 2 via its rotating shaft 54. The locking buckle 5 also has a reset mechanism to facilitate the locking post 50 entering the locking groove 56. Spring 57; The unlocking pull rope 31 is connected to the end of the energy storage spring 3 that can release the stored elastic force. An unlocking pull rope through hole 20 is also provided in the outer cover 1 and inner cover 2 to lead the unlocking pull rope 31 into the lock. The characteristic is that a locking platform 59 is provided on the other side of the locking buckle 5 on the locking buckle 5, which corresponds to and cooperates with the locking buckle mechanism 51 to control the rotation of the locking buckle 5 and implement the locking and releasing of the energy storage spring 3. The locking buckle mechanism 51 is columnar in shape, with a rotating mechanism shaft 510 and a reset spring 52 between its two ends. The locking buckle mechanism 51 is connected via... The locking mechanism 510 is installed inside the outer cover 1 and the inner cover 2. One end of the locking mechanism 51 is provided with a top head 58 that can cooperate with the locking platform 59 of the locking buckle 5. The other end of the locking mechanism 51 is connected to one end of the bimetallic device 4. The locking buckle 5 can be displaced by the thermal deformation of the locking mechanism 51 by the bimetallic device 4, thus breaking away from the pressure support control of the energy storage spring 3 on the platform 59 and the top head 58. This allows the locking buckle 5 to rotate around its locking mechanism 54, allowing the locking pin 50 to break away from the locking groove 56 in the locking buckle 5. This allows the energy storage spring 3 to release its energy storage force, driving the unlocking pull rope 31 to achieve the required unlocking.

[0035] This utility model can be calculated as follows: Figure 1 , Figure 2 , Figure 6 and Figure 8 As shown, the bimetallic device 4 is configured as a nickel-titanium alloy heat-shrinkable wire 41. The heat-shrinkable wire 41 is preferably arranged on the outer side near the outer cover 1. One end of the heat-shrinkable wire 41 can be directly or indirectly fixedly connected to the outer cover 1 or the inner cover 2, and the other end of the heat-shrinkable wire 41 can be directly or indirectly connected to the locking mechanism 51. This invention can also be implemented as follows: Figure 3 As shown, the bimetallic device 4 is configured as a snap-action device 43 that can generate sudden deformation tension under a certain temperature difference. One end of the snap-action device 43 is connected and fixed to the outer cover shell 1, and the other end of the snap-action device 43 that can generate the required deformation amplitude is connected to the locking buckle mechanism 51 through the mechanism pull rope 55.

[0036] exist Figure 1 , Figure 2 , Figure 3 In the illustration, for ease of illustration, the unlocking pull rope 31 is connected to the locking post 50; in practical applications, the unlocking pull rope 31 can also be connected to the side of the manual energy storage button 17 connected to the locking post 50 or to the end of the energy storage spring 3 that can release the energy storage force, as needed.

[0037] like Figure 1 , Figure 2 , Figure 3 , Figure 6 , Figure 7 As shown, to avoid the pull force and thread loss of the unlocking pull rope 31 on the stored elastic force from the stored spring 3 during operation, a rope tube 30 is provided on the outside of the unlocking pull rope 31. The rope tube 30 can be a flexible hose that can be bent but is difficult to compress, or a rigid tube or grooved tube that cannot be bent. One end of the rope tube 30 can be connected and fixed to the outer cover shell 1 or the inner cover plate 2. The other end of the rope tube 30 can be directly or indirectly connected and fixed to the inside of the lock panel or the inside of the door body. The unlocking pull rope 31 can be directly or indirectly connected to the unlocking component or the unlocking lever arm in the lock by passing through the rope tube 30.

[0038] This utility model can be calculated as follows: Figure 4 , Figure 5 As described above, the unlocking pull rope through hole 20 is provided on the surface of the inner cover plate 2, and the unlocking pull rope 31 or rope tube 30 can pass through the unlocking pull rope through hole 20 of the inner cover plate 2 into the lock. The outer cover shell 1 and the inner cover plate 2 are integrally set with the door handle or door handle that is fixed inside the door and cannot be rotated in the lock.

[0039] In practical applications, as needed, an isolation bracket can be provided on one side of the outer cover 1 and the inner cover 2 to keep the bimetallic device 4 at a certain distance from the door or lock panel 7.

[0040] In practical applications, this utility model can be customized as needed. Figure 5 As shown, a handle bend is provided on the outer side of the inner cover plate, which has a hole for the unlocking rope, so as to connect the outer cover and the inner cover plate to the handle shaft or handle pivot of the door handle.

[0041] like Figure 6 and Figure 8 , Figure 7 and Figure 8 , Figure 9 , Figure 10 , Figure 11 and Figure 12 middle, Figure 13 As shown, the handle shaft 6 of this utility model, which can be used in a lock pick, includes: a handle connecting end 61 that can be connected to the handle bend 25, a lock panel mounting section 62, a handle return spring force-bearing section 63, and a lock pick square rod insertion hole 64. The feature is that a shaft unlock pull rope through hole 60 is provided on the outer side of the handle shaft 6 between the handle connecting end 61 and the lock pick square rod insertion hole 64, which allows the unlock pull rope 31 to pass through.

[0042] This utility model can be calculated as follows: Figure 6 or Figure 13 As shown, a nut hole (67) or a stud (68) is provided on the outside of the shaft unlocking pull rope hole (60) for mounting the rope tube (30) on the handle shaft (6); this utility model can also be configured as follows: Figure 9 or Figure 10 As shown, a hollow nut (65) or a hollow stud (66) is provided on the inner or outer side of the shaft unlocking pull rope hole (60) to mount the rope tube (30) on the handle shaft (6); this utility model can also be configured according to Figure 14 or Figure 15 As shown, a male plug (77) or a female slot (76) is provided on the outside of the shaft unlocking pull rope hole (60) to mount the rope tube (30) on the handle shaft (6); the present invention can also be configured as follows: Figure 16 or Figure 17 As shown, a female sliding groove (69) or a male sliding head (691) is provided on the outside of the shaft unlocking pull rope hole (60) to install the rope tube (30) on the handle shaft (6).

[0043] This utility model can be referred to. Figure 6 and Figure 8 , Figure 7 and Figure 8 , Figure 11 and Figure 12As shown, the unlocking cord through hole 20 is provided on the outer cover 1. On the outside of the unlocking cord through hole 20, there is a handle bend 25 that can be used to connect the outer cover 1 and the inner cover 2 to the door handle of the lock, and can be used to connect the outer cover 1 and the handle shaft 6. The handle bend 25 can be fixedly connected to the handle connection end 61 of the handle shaft 6 which has the shaft unlocking cord through hole 60. The unlocking cord through hole 20 communicates with the shaft unlocking cord through hole 60 in the handle shaft 6. On the outside of the handle shaft 6, there is a cord tube 30 that communicates with the shaft unlocking cord through hole 60 and allows the unlocking cord 31 to pass through.

[0044] Specific Implementation Example 1 of the Lock Picker

[0045] Please see Figure 1 and Figure 4 , Figure 2 and Figure 4 , Figure 3 and Figure 4 , Figure 6 and Figure 8 , Figure 7 and Figure 8As shown, the outer cover 1 of this utility model can be made of high-temperature resistant and thermally conductive materials, such as iron, aluminum, copper, or steel. The bimetallic device 4 in this utility model can be made of heat-shrinkable nickel-titanium alloy wire or a bimetallic sheet that easily deforms when heated, depending on the needs. The specific size and shape of the bimetallic device 4 can be determined according to actual requirements. The energy storage spring 3 suitable for this utility model can be set or selected according to the unlocking force and stroke required by the unlocking component in the lock. The unlocking pull rope 31 required by this utility model can be made of high-temperature resistant, fatigue-resistant, and non-elongated metal steel wire or metal-fiber composite rope. Alternatively, the inner cover 2, locking buckle 5, and locking buckle mechanism 51 of this utility model can be made of high-temperature resistant and high-strength metals or other composite materials, depending on the needs. The manual energy-accumulating button 17 of this invention, containing a pressure-bearing step 37, can be made of high-strength metal or metal-plastic composite materials as needed. A locking pin 50 with a raised columnar shape is installed at one end of the manual energy-accumulating button 17. This raised columnar shape includes cylindrical, polygonal, or multifaceted columnar shapes. Multifaceted columns also include regular or irregular raised columnar shapes with polygonal cross-sections and polyhedral shapes. For example, cylindrical and polygonal raised columnar shapes can be considered regular raised columnar shapes in this invention, while raised three-dimensional triangles or trapezoids can be considered irregular raised columnar shapes. The key is that the locking pin 50 can cooperate with the locking pin 5 to lock and release the energy-accumulating spring 3. A force-receiving button 170 is then installed at the other end of the manual energy-accumulating button 17 to facilitate external force pressing of the energy-accumulating spring 3. The locking mechanism 51 of this utility model can be made of high-strength metal or metal-plastic composite material as needed. The shape of the locking mechanism 51 can be set as a straight column, a curved column, or a flat straight or curved column as needed. One end of the column is set as a top head 58 that can cooperate with the locking buckle 5. The other end of the column is set to be directly or indirectly connected to the bimetallic device 4. A locking mechanism shaft 510 that allows it to rotate and a mechanism return spring 52 that helps the top head 58 to enter the locking buckle 5 locking platform 59 to reset are set between the two ends of the locking mechanism 51.

[0046] Please see Figure 1 and Figure 4 , Figure 2 and Figure 4 , Figure 3 and Figure 4 , Figure 6 and Figure 8 , Figure 7 and Figure 8As shown, a groove 56 is cut into the locking buckle 5, and a rotating shaft 54 ​​is installed in the locking buckle 5 to allow it to rotate. The locking buckle 5 can be installed on the inner side of the outer cover 1 and the inner cover 2 through its rotating shaft 54; Figure 6 As shown, the locking shaft 54 ​​is installed in the locking shaft mounting hole 23 on the outer cover 1; in practical applications, the locking shaft mounting hole 23 can also be installed in the inner cover plate 2 as needed; to enhance the strength of the locking shaft 54, the locking shaft mounting hole 23 can also be installed in both the outer cover 1 and the inner cover plate 2, which correspond to the two ends of the locking shaft 54. A locking return spring 57 is then installed on the locking buckle 5 to allow the locking buckle groove 56 to correspond to the locking pin 50 and facilitate the locking pin 50 entering the locking buckle groove 56; for ease of illustration, in... Figure 1 , Figure 2 , Figure 3 , Figure 8 The reset spring 57 shown in the figure is a thrust spring. In practical applications, the thrust spring of the reset spring 57 shown in the figure can be modified as needed, such as... Figures 1 to 3 A torsion spring is used for the spring 52 in the mechanism position. A locking platform 59 is provided on the other side of the locking buckle 5, corresponding to the locking groove 56 of the locking buckle 5, on the locking buckle 5. This platform can be cut out to correspond to the locking buckle mechanism 51 and cooperate with the top head 58 in the locking buckle mechanism 51 to control the rotation of the locking buckle 5 and implement the locking and releasing of the energy storage spring 3. To enable the locking buckle mechanism 51 to effectively control the rotation angle and stroke of the locking buckle 5 when the energy storage spring 3 is released, and to facilitate the re-entry of the locking pin 50 into the locking groove 56, this invention provides a protrusion 53 with an arc surface on the outer edge of the locking platform 59. This protrusion can contact the locking buckle mechanism 51 and be controlled by the locking buckle mechanism 51 to adjust the rotation stroke and angle of the locking buckle 5. The locking buckle mechanism 51 is then installed on the inner side of the outer cover 1 and the inner cover plate 2 via the locking mechanism rotating shaft 510 between its two ends. Figure 6 As shown, the locking mechanism pivot 510 is installed in the locking mechanism pivot mounting hole 24 on the outer cover 1; in practical applications, the locking mechanism pivot mounting hole 24 can also be installed in the inner cover plate 2 as needed; similarly, to enhance the load-bearing strength of the locking mechanism pivot 510, the locking mechanism pivot mounting hole 24 can also be installed in both the outer cover 1 and the inner cover plate 2, which correspond to the two ends of the locking mechanism pivot 510. A mechanism return spring 52 is then installed on the locking mechanism 51 to allow it to reset; Figure 1 , Figure 2 , Figure 3 , Figure 8 The retaining spring 52 shown is a torsion spring. In practical applications, the retaining spring 52 can be modified as needed, such as... Figures 1 to 3The thrust spring used for locking the return spring 57.

[0047] Please see Figure 1 and Figure 4 , Figure 2 and Figure 4 , Figure 3 and Figure 4 , Figure 6 and Figure 8 , Figure 7 and Figure 8 As shown, a bimetallic device 4 is then set and installed on the outer side near the outer cover 1. The required bimetallic ratio of materials can be selected to manufacture the bimetallic device 4 of this utility model according to the actual application and the need for critical high-temperature unlocking. This utility model can be manufactured according to... Figure 1 , Figure 2 , Figure 6 , Figure 7 As shown, the bimetallic device 4 is configured as a nickel-titanium alloy heat-shrinkable wire 41. Manufacturers of heat-shrinkable wire 41 already have specific models available, which can be purchased directly as needed. Heat-shrinkable wire 41 with a critical heat-shrinking temperature of 60°C, 65°C, 70°C, or 90°C can be selected according to actual needs. A suitable option is the wire manufactured by DYNALLOY, Inc., a foreign company. and Muscle The brand's nickel-titanium alloy heat-shrinkable wire is made of nickel-titanium alloy, which is typically composed of 55%-56% nickel and 44%-45% titanium. Small variations in its composition can significantly affect the material's performance. Its heat shrinkage rate is between 2% and 5%, typically 4%. The brand's nickel-titanium alloy heat-shrinkable wire has an operating temperature range of 60-110 degrees Celsius. In practical applications, wires or heat-shrinkable wires with the required operating temperature can be purchased directly from the manufacturer. For example, nickel-titanium alloy heat-shrinkable wires with a critical operating temperature of 65 to 90 degrees Celsius and a diameter ranging from 0.15 mm (heat shrinkage tensile strength of 128 g) to 0.51 mm (heat shrinkage tensile strength of 1424 g) can be selected. Alternatively, one can search on Taobao to purchase domestically manufactured nickel-titanium alloy heat-shrinkable wires, also known as "muscle wire." The length, model, and number of strands of the heat-shrinkable wire 41 can be set according to the required pulling force and stroke of the locking mechanism 51. This utility model can also be... Figure 3As shown, the bimetallic device 4 is configured as a snap-action device 43 formed by stamping a bimetallic sheet. The snap-action device 43 with the required pulling force and stroke can be manufactured using existing snap-action thermostat manufacturing processes, technologies, and principles. The material and thickness of the bimetallic sheet, as well as the shape and size of the snap-action device, can be set or selected according to the required pulling force and stroke of the locking mechanism 51. For example, most existing snap-action thermostats use a bimetallic sheet with an active metal layer of manganese-copper-nickel, nickel-chromium-iron, copper-tin-zinc, etc., and a passive metal layer of nickel-iron alloy, which is then stamped into a disc shape or concave arc shape as shown in the figure to manufacture the snap-action device of this invention. For example, to manufacture the snap-action device 43 that generates a snap-action at a critical high temperature of around 70 degrees Celsius, the 5J1480 and 5J2011 bimetallic strip materials produced by Shanghai Xinxi Alloy Materials Co., Ltd. can be used to manufacture the snap-action device 43 of this utility model. Its specific stamped shape and size can be determined by the performance of the bimetallic strip material, the actual required snap-action stroke, and the sudden change in tension. As long as the snap-action stroke is greater than 3 mm and can pull the required locking mechanism 51, allowing the preset energy storage spring 3 to release the locked energy storage force, it is acceptable. Alternatively, bimetallic strips from other manufacturers suitable for this utility model can be selected to manufacture the snap-action device 43 in this utility model. Since the manufacturing principle and method of snap-action temperature controllers are already existing technologies, the advantages of our country's industrial chain can be utilized. The required deformation stroke, tension, and size range of the snap-action device 43 of this utility model can be provided to relevant manufacturers, who can then process the snap-action device 43 required in this utility model.

[0048] Please see Figure 3 , Figure 6 As shown, in actual manufacturing, it is best to install the bimetallic device 4 on the outer surface near the outer cover 1 or in the outer surface near the outer cover 1, so that it can quickly sense the heat source of the fire; Figure 1 and Figure 2 In the illustration, for clarity, the bimetallic device 4 is shown inside the outer casing 1; in actual manufacturing, this invention can be adapted as needed, referring to... Figure 3 , Figure 6 , Figure 7As shown, the heat-shrinkable metal wire 41 and the snap-fit ​​device 43 constituting the bimetallic device 4 are installed on the surface near the outer cover 1. The installation should facilitate the bimetallic device 4's rapid detection of the fire heat source without affecting the normal operation of the system. In practical applications, the heat-shrinkable metal wire 41 can also be installed on the outside of the outer cover 1 using a fine wire groove embedding technique or by inserting it into a thin (copper) tube. Next, one end of the heat-shrinkable metal wire 41 constituting the bimetallic device 4 is directly connected and fixed to the outer cover shell 1, or indirectly connected via a steel wire rope or a terminal block. Then, as needed, the other end of the heat-shrinkable metal wire 41 is directly connected to the locking mechanism 51, or indirectly connected via a steel wire rope, a transmission rod, or a terminal block. The goal is to ensure that the heat-shrinkable metal wire 41 can shrink at the specified temperature and pull the locking mechanism 51 to move, allowing it to disengage from the support control of the locking platform 59, enabling the locking pin 50 to disengage from the locking buckle 5, and allowing the energy storage spring 3 to release its stored energy, driving the unlocking pull rope 31 to achieve the desired unlocking. This utility model can also be consulted. Figure 3 One end of the spring 43 constituting the bimetallic device 4 is connected and fixed to the outer cover shell 1. The other end of the spring 43, which can generate the required deformation range, is connected to the locking buckle mechanism 51 through the mechanism pull rope 55. This allows the locking buckle 5 to displace from the support control of the locking platform 59 as the locking buckle mechanism 51 is pulled and displaced by the heat deformation of the spring 43. This allows the locking pin 50 to disengage from the locking buckle 5, and the energy storage spring 4 to release its stored elastic force, thereby driving the unlocking pull rope 31 to achieve the required unlocking.

[0049] Please see Figure 1 , Figure 2 , Figure 3 , Figure 6 , Figure 7 As shown in the diagram, an energy storage spring 3 is installed on one side of the outer cover 1 and the inner cover 2. The installation and usage position of the energy storage spring 3 must avoid conflict with the bimetallic device 4. In the above diagram, one end of the energy storage spring 3 is installed on the outside of the locking post groove 10 on one side of the outer cover 1 and the inner cover 2, serving as a support point for the energy storage spring 3's energy storage force. The other end of the energy storage spring 3 is connected to the locking post 50 via a manual energy storage button 17 containing a pressure-bearing step 37, so that the locking post 50 can also cooperate with the locking groove 56 in the locking buckle 5 to serve as another support point for the energy storage spring 3's energy storage force. Please refer to... Figure 1 , Figure 2 , Figure 3 , Figure 6 , Figure 7As shown in the figure, a locking pin groove 10 is installed in the outer cover 1 and the inner cover 2 to allow the locking pin 50 to perform directional reciprocating motion. The cross section of the connection between the force button 170 of the manual energy storage button 17 and the locking pin 50 and the groove of the locking pin groove 10 can be set to a geometric shape that allows the locking pin 50 to perform directional reciprocating linear motion. If the cross section of the manual energy storage button 17 is matched with the groove of the button groove 16, the effect of the locking pin 50 performing linear reciprocating motion is even better. This can better ensure that the locking pin 50 can automatically enter the locking groove 56 of the locking buckle 5 when the manual energy storage button 17 is pressed and the energy storage spring 3 is stored, so that the locking pin 50 can cooperate with the locking groove 56 to realize the energy storage force of the energy storage spring 3. For ease of illustration, the locking pin groove 10 shown in the diagram is located on the outer cover 1. In practical applications, the locking pin groove 10 can also be located on the inner cover 2 or simultaneously on the inner sides of both the outer cover 1 and the inner cover 2, as needed. Figure 1 , Figure 2 , Figure 3 , Figure 6 Figure 7 For ease of illustration, the energy storage spring 3 shown in the figure is a thrust spring and is installed on the outside of the locking pin groove 10 located between the outer cover 1 and the inner cover 2. In practical applications, the energy storage spring 3 can be modified into a torsion spring as described in the patented product above. For details, please refer to the patent number CN202022523830.6, patent title "Unlocker that can be installed on the outside of an indoor door and releases stored spring force when exposed to high temperature in a fire".

[0050] Please see Figure 1 , Figure 2 , Figure 3 , Figure 6 , Figure 7 As shown, an unlocking pull rope 31 is installed or connected to one end of the energy storage spring 3 that can release the stored elastic force. Figure 1 , Figure 2 , Figure 3 , Figure 8 For ease of illustration, the unlocking pull rope 31 is installed on the locking post 50; in practical applications, as needed, referring to Figure 7, the unlocking pull rope 31 can also be installed or connected to the side of the manual energy storage button 17 connected to the locking post 50, or installed on the end of the energy storage spring 3 that can release the energy storage force.

[0051] Please see Figure 1 , Figure 2 , Figure 3 , Figure 6 and Figure 8 , Figure 7 and Figure 8The locking mechanism 51 is then installed inside the outer cover 1 and inner cover 2 via its locking mechanism pivot 510. One end of the locking mechanism 51 is fitted with a top head 58 that can cooperate with the locking platform 59 of the locking buckle 5. The other end of the locking mechanism 51 is directly or indirectly connected to one end of the bimetallic device 4, so that the locking buckle 5 can displace the locking mechanism 51 as it is pulled by the bimetallic device 4 due to heat deformation, thus disengaging from the pressure support control of the energy storage spring 3 on the platform 59 and the top head 58. Under the action of the energy storage spring 3, the locking buckle 5 can rotate around its locking pivot 54, causing the locking pin 50 to disengage from the locking groove 56 in the locking buckle 5, thereby allowing the energy storage spring 3 to fully release its energy storage force and drive the unlocking pull rope 31, thus achieving the desired unlocking. In practical applications, this utility model can be customized as needed. Figure 1 , Figure 2 As shown, the other end of the locking mechanism 51 is directly connected to one end of the bimetallic device 4; this utility model can also be adapted as needed. Figure 3 , Figure 6 As shown, the other end of the locking buckle mechanism 51 is indirectly connected to one end of the bimetallic device 4 via the mechanism pull rope 55. The mechanism pull rope 55 in this utility model refers to a rope or wire rope that can withstand high temperature and is not easily stretched, or a metal-plastic composite rope, or a transmission rod that is not easily deformed by tension and can transmit tension.

[0052] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 Furthermore, a pull rope through hole 20 is provided in the outer cover 1 and the inner cover 2 to guide the unlocking pull rope 31 into the lock. The pull rope through hole 20 can be customized as needed. Figure 1 , Figure 2 , Figure 3 , Figure 6 , Figure 7 As shown, the unlocking pull cord through hole 20 is installed in the outer cover 1; alternatively, it can be installed as needed. Figure 4 , Figure 5 As shown, the unlocking cord through hole 20 is carved into the inner cover plate 2. Alternatively, the unlocking cord through hole 20 can be carved between the outer cover shell 1 and the cover box of the inner cover plate 2, as needed. It can be manufactured using screws or riveting, or by using the shell screw hole 11 on the outer cover shell 1 and the cover plate screw hole 21 on the inner cover plate 2, and by encapsulating it using existing lock-making processes and technologies, into a lock pick that can be used in locks where the unlocking cord 31 is a straight, short-distance lock and tool connecting the unlocking component.

[0053] Specific Implementation Example 2 of the Lock Picker

[0054] Following the specific embodiment of the unlocking device described above, in order to avoid the tension and thread loss of the unlocking pull rope 31 on the energy storage spring 3 during use and operation, this utility model can be referred to 1. Figure 2 , Figure 3 , Figure 6 , Figure 7 As shown, a rope tube 30 is installed on the outside of the unlocking pull rope 31. The purpose of using the rope tube 30 is to reduce the waste of frictional resistance or stroke loss caused by the non-linear or long-distance pulling of the unlocking components and lever arm in the lock. Figures 1 to 3 In this context, the rope-threading tube 30 can be a flexible but difficult-to-compress hose or a rigid or grooved tube that cannot be bent; Figure 6 , Figure 7 In this design, since the rope guide tube 30 needs to move in conjunction with the outer cover 1 or the inner cover plate 2, the rope guide tube 30 must be a flexible hose that is easily bent but difficult to compress. A rope guide tube connection end 38 is provided at one end of the rope guide tube 30 for connecting and fixing the rope guide tube 30 to the outer cover 1, the inner cover plate 2, or the handle shaft 6. Figures 1 to 3 In the diagram, the rope-threading tube 30 is connected and fixed to the outer cover 1 or the inner cover 2 via the rope-threading tube connecting end 38; Figures 6 to 17 Since the handle shaft 6 is always fixedly connected to the outer cover 1 and the inner cover 2 during application, the rope tube 30 installed on the handle shaft 6 can also be considered to be fixedly connected to the handle shaft 6, the outer cover 1, and the inner cover 2 via the rope tube connecting end 38. Furthermore, a rope tube fixing end 34 is installed at the other end of the rope tube 30 for direct or indirect connection to the inside of the lock panel or the inside of the door body, allowing the unlocking pull rope 31 to be directly or indirectly connected to the unlocking component or the unlocking lever arm in the lock body by penetrating the rope tube 30. Please refer to 1. Figure 2 , Figure 3 , Figure 6 , Figure 7As shown, the rope tube 30 of the unlocking pull rope 31 of this utility model can be made of high temperature resistant and high strength materials. Alternatively, the manufacturing process and technology of the handbrake wire tube of a bicycle or motorcycle can be used to make the flexible rope tube 30 required by this utility model. A flexible metal hose that can be bent but not compressed by the unlocking pull rope 31 can also be used to make the rope tube 30. The key is that the rope tube 30 can effectively help the unlocking pull rope 31 transmit the stored elastic force and pulling force from the energy storage spring 3, and can pull the unlocking component in the lock to open it as required. To facilitate the connection between the unlocking pull rope 31 and the unlocking component in the lock, a connecting buckle 32 is installed at the end of the unlocking pull rope 31 to connect with the unlocking component in the lock. To ensure that the connecting buckle 32 and the unlocking pull rope 31 can automatically reset at room temperature without interfering with the normal use of the lock, this utility model can be referred to... Figure 1 , Figure 2 , Figure 3 As shown, a pull rope return spring 36 is installed between the outer end of the rope tube 30 and the connecting buckle 32 to help the connecting buckle 32 maintain its original reset state. The specific function of the unlocking pull rope 31 in relation to the unlocking component of the lock is existing technology; refer to patent publication number CN214463293U, entitled "A Linear Lever Device for Assisting Lock Unlocking in the Event of a Fire," where the rope 9 is equivalent to the unlocking pull rope 31 in this utility model. By using screws or riveting, or by using the shell screw holes 11 on the outer cover 1 and the cover plate screw holes 21 on the inner cover 2, combined with existing lock-making encapsulation processes and technologies, a lock-unlocking device can be manufactured that can be used when the unlocking pull rope 31 is not linear and connects to the unlocking component of the lock over a long distance.

[0055] Specific Implementation Example 3 of the Lock Picker

[0056] Following the aforementioned specific embodiments one and two of the lock pick, in practical applications, this utility model can, as needed, provide an isolation bracket on one side of the outer cover 1 and inner cover 2 to maintain a certain distance between the bimetallic device 4 and the door or lock panel. The isolation bracket can be made of a high-strength, high-temperature resistant, non-thermal-conducting material to prevent unauthorized unlocking by external heat sources. The utility model product containing the isolation bracket can be fixedly connected to the door or lock panel inside the door using riveting and welding techniques or high-temperature adhesive techniques. Alternatively, mounting screw holes can be provided and installed on the isolation bracket to allow the utility model to be installed on the outside of the door or on the interior wall of the room. By using screws or riveting, or by using the shell screw holes 11 on the outer cover 1 and the cover plate screw holes 21 on the inner cover plate, combined with the existing sealing process and technology in lock making, a lock pick can be made that allows it to be easily installed on the outside of the door or on the wall near the danger zone, and the unlocking pull rope 31 is non-linear and connects to the unlocking component in the lock over a long distance.

[0057] Specific Implementation Example 4 of the Lock Picker

[0058] Following the aforementioned specific embodiments one and two of the lock pick, in order to enable this utility model to be integrally designed with a fixed, non-rotatable door handle or inner door pull in a lock, this utility model can be referred to... Figure 4 , Figure 5 As shown, a through hole 20 is provided on the inner cover plate 2 to allow the unlocking pull rope 31 or rope tube 30 to pass through into the lock. The rope tube connection end 38 is installed and fixed on the inner side of the outer cover shell 1 and the inner cover plate 2 or on the outer side of the inner cover plate 2. The outer cover shell 1 and the inner cover plate 2 are then integrated with the door handle or inner door handle of the lock. The integration means that the outer cover shell 1 and the inner cover plate 2 of this utility model are made to have a shape that is roughly the same as the shape of the door handle or inner door handle of the existing lock, so that it has both the function of a lock pick and the function of a door handle or inner door handle of the lock.

[0059] Specific embodiment of handle shaft

[0060] To facilitate the fabrication and installation of the outer cover 1 and inner cover 2 of this utility model as a single unit with the door handle or escape handle that is manually turned inside the door, this utility model also provides a handle shaft 6 that can be used in a lock pick. Please refer to... Figure 6 and Figure 8 , Figure 7 and Figure 8 , Figure 9 , Figure 10 , Figure 11 and Figure 12 , Figure 13 As shown, where: Figure 6 and Figure 8 , Figure 7 and Figure 8 The schematic diagram of the principle structure of the two types of handle shafts 6, which require the removal of handle connecting screws 79 or connecting nuts 702 before the installation direction of the indoor door handle can be changed; Figure 11 and Figure 12 The schematic diagram shows the principle and structure of another type of handle shaft 6 that allows changing the installation direction of an indoor door handle without removing the handle connecting screws or nuts. Figures 6 to 13 In the middle, the schematic diagram of its cross-sectional principle structure on the left side, besides Figure 6 , Figure 8 , Figure 9 In addition to the two-layer design in the lock panel mounting section for easy bearing installation, Figures 6 to 13 All the schematic diagrams of the left-side cross-sectional view of the handle shaft 6 in the diagram can be considered to be the same, including... Figures 14 to 17 The diagram shows a left-side view of the handle shaft 6. Therefore, the handle shaft 6 of this invention, which can be used in a lock pick, can be summarized as follows: a handle connection end 61 that can connect to the handle bend 25, a lock panel mounting section 62, a handle return spring receiving section 63, and a lock pick insertion hole 64. Its characteristic is that a lock pick insertion hole 60 is provided on the outer side of the handle shaft 6 between the handle connection end 61 and the lock pick insertion hole 64, allowing the lock pick 31 to pass through. The handle connection end 61 of this invention, which can connect to the handle bend 25, can be... Figure 6 The manufacturing process is as shown in the diagram: a handle connecting screw hole 70 is drilled in the handle connecting end 61 to connect the handle shaft 6 and the handle bend 25, and a handle connecting screw 79 that matches the handle connecting screw hole 70 is provided. A female screw hole 791 is then provided on the handle connecting bend 25, corresponding to the drilled handle connecting screw hole 70 and mating with the handle connecting screw 79. The handle connecting end 61 of this invention, which can connect to the handle bend 25, can also be manufactured as follows: Figure 7 The manufacturing process shown is as follows: a connecting bolt 701 is installed in the handle connection end 61 to connect the handle shaft 6 and the handle elbow 25, and a connecting nut 702 is threadedly matched with the connecting bolt 701. A connecting bolt mounting hole 703 is then provided and drilled on the handle connection elbow 25 to match the connecting bolt 701, facilitate the installation of the connecting nut 702 onto the connecting bolt 701, and allow the handle shaft 6 to be installed on the handle connection elbow 25. In practical applications, the following can be added as needed. Figure 7The solid connecting bolt 701 is replaced with a hollow bolt integrated with the handle shaft 6. This allows the hollow bolt to function not only as a connecting bolt 701 but also as part of the shaft's unlocking pull rope through hole 60. To prevent the use of the unlocking square rod insertion hole 64 from interfering with the use of the unlocking pull rope 31 in this hollow bolt, it can be... Figure 7 As shown, the unlocking square bar insertion hole 64 should be positioned so that it is not on the same cross-section as the shaft unlocking pull rope through hole 60. To prevent the handle connecting end 61 and the handle elbow 25 from slipping under external force after connection, existing connection processes and technologies for handle connecting ends and handle elbows can be used, making the connection between the handle connecting end 61 and the handle elbow 25 a non-circular, non-rotatable connection. See also... Figure 6 and Figure 8 , Figure 7 and Figure 8 , Figure 9 , Figure 10 , Figure 11 and Figure 12 , Figure 13 As shown, a shaft unlocking cable through hole 60 is provided on the outer side of the handle shaft 6 between the handle connecting end 61 and the unlocking bar insertion hole 64, allowing the unlocking cable 31 to pass through. The specific shape and size of the handle connecting end 61, the lock panel mounting section 62, the handle return spring force-bearing section 63, and the unlocking bar insertion hole 64 in this embodiment, as well as their functions and applications in existing locks, all fall within the scope of existing technology. Their specific manufacturing can refer to existing handle shaft manufacturing processes and technologies.

[0061] Specific embodiment of handle shaft 2

[0062] To better prevent friction damage to the unlocking cord 31 leading to the lock caused by the indoor door handle during long-term rotation, or to reduce the wear and tear on the cord 31 during operation, and to minimize unnecessary manufacturing and maintenance hassles, this utility model can be designed according to... Figure 6 , Figure 7 , Figure 9 , Figure 10 , Figures 12 to 17 As shown in the figure, and referring to the second specific embodiment of the unlocking device, a rope tube 30 that can be used to insert the unlocking pull rope 31 is installed on the outside of the handle shaft 6.

[0063] This embodiment can be followed as follows Figure 6 or Figure 13 As shown, a nut hole 67 or a stud 68 is provided on the outside of the shaft unlocking cable through hole 60 to mount the cable tube 30 onto the handle shaft 6. See also... Figure 6 , Figure 13First, a stud hole 39 is drilled on the rope tube connection end 38, which is equipped with a rope tube 30, to match the stud 68 or nut hole 67 that is installed on the handle shaft 6. Please refer to [further details]. Figure 6 As shown, a stud 68 is then inserted into the stud hole 39 to engage with the threads in the nut hole 67 drilled on the handle shaft 6, and the stud 68 in the rope tube connection end 38 installed on the rope tube 30 is then tightened into the nut hole 67 drilled on the handle shaft 6. Alternatively, refer to... Figure 13 As shown, the bolt hole 39 in the rope tube connection end 38, which is drilled on the rope tube 30, is fitted onto a stud 68 that is installed on the outside of the handle shaft 6, and a matching nut 610 is installed on the stud 68 and tightened.

[0064] This embodiment can also be followed as follows: Figure 9 or Figure 10 As shown, a hollow stud 66 or a hollow nut 65 is provided on the inner or outer side of the shaft unlocking pull rope through hole 60 to mount the rope tube 30 onto the handle shaft 6. Please refer to [link to relevant documentation]. Figure 9 As shown, firstly, a hollow nut 65 with a swivel joint is installed on the rope tube connection end 38, which is equipped with a rope tube 30. This nut 65 matches the threads of the hollow stud 66 on the handle shaft 6 and allows the unlocking pull rope 31 to pass through. The swivel joint structure is used to facilitate the installation of the rope tube 30 and prevent the unlocking pull rope 31 from getting tangled. In practical applications, the hollow nut 65 can also be directly welded to the rope tube connection end 38 as needed. Then, the hollow nut 65 installed on the rope tube 30 is tightened to the hollow stud 66 installed on the handle shaft 6. Or refer to... Figure 10 As shown, first, a hollow stud 66 with a swivel joint is installed on the rope tube connection end 38, which is equipped with a rope tube 30. This stud can match the threads of the hollow nut 65 on the handle shaft 6 and allow the unlocking pull rope 31 to pass through. The swivel joint structure is also to facilitate the installation of the rope tube 30 and prevent the unlocking pull rope 31 from getting tangled. In practical applications, the hollow stud 66 can also be welded directly to the rope tube connection end 38 as needed. Then, the hollow stud 66 installed on the rope tube 30 is tightened to the hollow nut 65 installed on the handle shaft 6.

[0065] This embodiment can also be followed as follows: Figure 14 or Figure 15 As shown, firstly, a male plug 77 or a female slot 76 is installed on the outside of the shaft unlocking pull rope hole 60 to mount the rope tube 30 on the handle shaft 6, and a spring clip 78 is installed in the female slot 76 to lock the male plug 77. See also... Figure 14A female slot 76 is installed on the rope tube connection end 38 of the rope tube 30, which can match the male plug 77 installed on the handle shaft 6 and allow the male plug 77 to be inserted and removed, and the unlocking pull rope 31 to pass through. Then, the female slot 76 on the rope tube connection end 38 is inserted into the male plug 77 installed on the handle shaft 6. Alternatively, refer to... Figure 15 As shown, a male plug is installed on the rope tube connection end 38 of the rope tube 30, which matches a female slot 76 that is carved into the handle shaft 6. This male plug allows insertion and removal of the female slot 76 and enables the unlocking pull rope 31 to pass through. The male plug 77, installed on the rope tube connection end 38 of the rope tube 30, is then inserted into the female slot 76 installed on the handle shaft 6. In practical applications, if an interference fit male plug 77 and female slot 76 are used, the spring clip 78 in the female slot 78 can be omitted as needed.

[0066] This embodiment can also be followed as follows: Figure 16 or Figure 17 As shown, a female sliding groove 69 or a male sliding head 691 is provided on the outer side of the shaft unlocking pull rope hole 60, allowing the rope tube 30 to be inserted from one side into the handle shaft 6. See also... Figure 16 As shown, a male sliding groove 691 is provided on the rope tube connecting end 38, which has a rope tube 30, and is capable of matching the female sliding groove 69 installed on the handle shaft 6. This allows for insertion or removal of the female sliding groove 69 from one side and connection with it, while also allowing the unlocking pull rope 31 to pass through. The male sliding groove 691 on the rope tube connecting end 38 is then inserted from one side into the female sliding groove 69 installed on the handle shaft 6. Alternatively, please refer to [further details omitted]. Figure 17 As shown, a female sliding buckle groove 69 is provided on the rope tube connecting end 38 of the rope tube 30, which can match the male sliding buckle groove 691 installed on the handle shaft 6 and can be inserted or pulled out from one side of the male sliding buckle groove 691 and connected with it, and allows the unlocking pull rope 31 to pass through. Then, the female sliding buckle groove 69 on the rope tube connecting end 38 of the rope tube 30 is inserted into the male sliding buckle groove 691 installed on the handle shaft 6 from one side.

[0067] Specific Implementation Example 5 of the Lock Picker

[0068] To further integrate this utility model with the interior door handle or escape door handle of a lock that can be opened by external force, or to manufacture this utility model together with the interior door handle of a lock that cannot be opened by external force, following the above-described specific embodiments one and two of the lock pick, and referring to specific embodiment four of the lock pick, this utility model can also be referred to... Figure 5 As shown, the product shape of this utility model, consisting of an outer cover shell 1 and an inner cover plate 2, is designed and manufactured to resemble the shape of an existing manually rotatable inward door handle, door opening handle, or escape door handle; or the product shape of this utility model, consisting of an outer cover shell 1 and an inner cover plate 2, is designed and manufactured to resemble the shape of an existing non-rotatable inward door handle that can be pulled to open the door, and a handle bend 25 is provided on the outer side of the inner cover plate 2, which has an unlocking rope through hole 20, to connect with the handle shaft 6 or handle axle of the inward door handle. The handle shaft 6 refers to a handle shaft that allows the door to be opened by manually rotating the inward door handle or door opening handle. The handle axle refers to the mounting shaft of an inward door handle that cannot be opened by rotating the inward door handle or door opening handle. Figure 5 In this case, if hollow bolts or hollow screws are used to connect the handle bend 25 to the lock or door body, the hollow bolts or hollow screws can both allow the unlocking pull rope 31 to pass through and also serve as an installation shaft for the door handle. The unlocking pull rope 31 or rope tube 30 is then led out through the bolt hole of the hollow bolt to the lock and can be connected to the unlocking component in the lock.

[0069] In practical applications, it can be used as needed. Figure 5 The handle bend 25 structure was modified to Figure 6 and Figure 7 The handle bend 25 is used, and referring to the handle shaft specific embodiments one and two described above, the required handle shaft 6 is selected, and a rope tube 30 is set and installed on the handle shaft 6. The unlocking pull rope 31 is led out through the rope tube 30 to the lock and can be connected to the unlocking component in the lock. Then, the outer cover 1 and inner cover 2 are made to resemble the shape of a door handle or escape handle that can be manually rotated to open a door in an existing lock. This allows the present invention to have the following two functions in practical applications: first, in case of fire or high temperature, it can facilitate outdoor personnel to turn the outdoor door handle to open the door for rescue; second, it can be used as a door handle or escape handle for daily use of indoor doors.

[0070] Sixth Specific Implementation Example of Lock Picker

[0071] Following the specific embodiments of the lock pick (Issue 1 and I), and referring to the specific embodiments of the handle shaft (Issue 1 and I), this utility model can be found in [reference 2]. Figure 6 and Figure 8 , Figure 7 and Figure 8 , Figure 11 and Figure 12As shown, the unlocking cord through hole 20 is set on the outer cover 1. A handle bend 25 is then provided on the outside of the unlocking cord through hole 20. This bend allows the outer cover 1 and inner cover 2 to be integrated with the door handle of the lock's internal rotating handle, and also allows the outer cover 1 to be connected to the handle shaft 6. This ensures that the handle bend 25 is fixedly connected to the handle connection end 61 of the handle shaft 6 in both the first and second embodiments of this invention, and that the unlocking cord through hole 60 in the handle shaft 6 is connected to the door handle. The locking cord hole 20 is connected to the corresponding hole. Then, according to the connection scheme of the handle connecting end 61 and handle bend 25 in the first embodiment of the handle shaft, the handle bend 25 and handle shaft 6 are connected and fixedly connected. Then, referring to the scheme of the second embodiment of the handle shaft, the cord tube 30 is set and installed on the outside of the handle shaft 6. Then, a cord tube 30 that can communicate with the shaft unlocking cord hole 60 and allow the unlocking cord 31 to pass through is selected and installed on the outside of the handle shaft 6. In this embodiment, the handle bend 25, which can be used to integrate the outer cover 1 and the inner cover 2 with the door handle of the lock, means that as long as the handle bend 25 can be properly connected and operated with the handle shaft 6, the shape of the outer cover 1 and the inner cover 2 can be made to resemble the shape of the door handle of the lock or other shapes as needed, as long as it can meet the normal operation of the system.

[0072] When using:

[0073] When the energy storage spring 3 is in a non-energy storage state, as agreed, under the action of the snap-reset spring 57, the locking groove 56 of the locking buckle 5 allows the locking pin 50 to enter easily. At this time, pressing the force button 170 on the manual energy storage button 17, under the action of the pressure step 37 on the manual energy storage button 17, drives the energy storage spring 3 to generate energy storage elasticity, and at the same time drives the locking pin 50 connected to the manual energy storage button 17 to enter the locking groove 56. At the same time, the locking pin 50 also pushes the locking buckle 5 to rotate, so that the top head 58 of the locking buckle mechanism 51 can be locked on the platform 59 under the action of its mechanism reset spring 52, and cooperates with the platform 59 of the locking buckle 5, so that the locking buckle 5 cannot rotate, thus realizing the locking of the locking pin 50 and the energy storage elasticity of the energy storage spring 3 by the locking buckle 5.

[0074] In practical applications, to fully meet the requirements for locks that facilitate fire rescue, this invention allows electronic or mechanical anti-theft locks with handles to be transformed into windproof passageway locks when high temperatures are detected by a fire. In practical applications, the unlocking pull cord 31 or the connecting buckle 32 at one end of the cord tube 30 containing the unlocking pull cord 31 can be connected to the clutch pin tray or push rod in the electronic lock, or the outer shell of the pullable motor engagement device; or the connecting buckle 32 at one end of the cord tube 30 containing the unlocking pull cord 31 can be connected to the sliding pin or unlocking component in a manually operated mechanical lock that can be unlocked by a key. This ensures that during daily use, when the bimetallic device 4 detects a fire... When the disaster reaches a critical high temperature, as agreed, the bimetallic device 4 can pull the locking buckle mechanism 51, causing the top head 58 to disengage from the support control of the locking platform 59. At this time, the locking buckle 5 rotates under the energy storage force of the energy storage spring 3, allowing the locking pin 50 to disengage from the locking buckle 5, and allowing the energy storage spring 3 to completely release its energy storage force, thereby driving the unlocking rope 31 to pull the clutch pin or unlocking component in the lock. At this time, as agreed, the outdoor personnel can press or turn the outside door handle to open the door and carry out the necessary rescue.

[0075] For fully automatic electronic locks, a handle clutch system consisting of an unlocking square bar clutch or clutch pins driven by an unlocking pull rope 31 needs to be added (as seen in ordinary electronic locks). This allows the secondary door handle located outside the door to drive the unlocking square bar controlled by the clutch pins or clutch. As long as the unlocking pull rope 31 can pull the clutch pins to put the lock into the unlocked state, an application product can be made that allows outdoor rescuers to turn the secondary handle to drive the unlocking square bar to carry out the required door opening rescue.

[0076] In practical applications, as needed, the unlocking component can be driven by pulling the unlocking rope 3 to unlock the square steel or square bar in the lock body. This allows the locking buckle mechanism 51 to be pulled as agreed when the bimetallic device 4 deforms due to high temperature, so that the locking buckle groove 56 of the locking buckle 5 can be rotated, the locking pin 50 can be released from the locking buckle 5, the elastic force of the energy storage spring 3 can be released, and the unlocking rope 31 can be driven to open the main lock tongue of the lock. Outdoor rescuers can then use another handle on the lock to drive and control the oblique tongue to open the door for rescue.

[0077] If the angle of rotation of the door handle required to open the main latch can be set to be smaller than the opening angle required for the latch, the application of this utility model can also be achieved by controlling the stroke or angle of the unlocking component in the lock by pulling the unlocking rope 31: when a fire occurs, the main latch can be opened by the unlocking rope 31, and the windproof latch can be opened by rescuers pressing the door handle, the auxiliary door handle, or the latch handle.

[0078] In practical applications, this utility model can also be made longer by using the manufacturing process and technology of steel wire tube, and can be applied and installed on the outside of the door of the room other than the door body or lock panel, or on the wall of the room that is easy to sense and may be a source of fire, by means of glue, welding or bracket screws.

[0079] The above embodiments of this utility model are not intended to limit the concept and application of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and description of this utility model.

Claims

1. A handle shaft for use in a lock pick, comprising: The handle connection end (61), lock panel mounting section (62), handle return spring force section (63), and unlocking square bar insertion hole (64) that can be interconnected with the handle bend (25) are characterized in that: an unlocking pull rope through hole (60) is provided on the outside of the handle shaft (6) between the handle connection end (61) and the unlocking square bar insertion hole (64) so ​​that the unlocking pull rope (31) can pass through.

2. The handle shaft for use in a lock pick as described in claim 1, characterized in that: A nut hole (67) or a stud (68) is provided on the outside of the shaft unlocking pull rope hole (60) for mounting the rope tube (30) on the handle shaft (6); or a hollow nut (65) or a hollow stud (66) is provided on the inside or outside of the shaft unlocking pull rope hole (60) for mounting the rope tube (30) on the handle shaft (6); or a male plug (77) or a female slot (76) is provided on the outside of the shaft unlocking pull rope hole (60) for mounting the rope tube (30) on the handle shaft (6); or a female sliding groove (69) or a male sliding head (691) is provided on the outside of the shaft unlocking pull rope hole (60) for mounting the rope tube (30) on the handle shaft (6).

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