Unlocking device with bimetallic device and handle rotating shaft capable of being used for unlocking device

Abstract

The utility model discloses an unlocking device with a bimetallic device and a handle rotating shaft capable of being used for the unlocking device. Comprising an outer cover shell, an inner cover plate, a locking column, a locking buckle mechanism and an unlocking pull rope, wherein the locking column is arranged on an energy storage button and can be matched with a locking buckle to control the elastic force of an energy storage spring; the locking buckle mechanism can be pulled by a bimetallic device to control the locking buckle to be matched with the locking column to lock and release the energy storage elastic force; the energy storage device is characterized in that the locking buckle is provided with a clamping table which can be controlled by the locking buckle machine top to rotate so as to release energy storage elastic force. The handle rotating shaft for the unlocking device comprises a handle connecting end head, a lock panel mounting section, a handle reset spring stress section and an unlocking square stick inserting hole, and is characterized in that a shaft unlocking pull rope penetrating hole through which an unlocking pull rope can penetrate is formed in the handle rotating shaft between the handle connecting end head and the unlocking square stick inserting hole. The utility model can be used independently or manufactured integrally with a door opening handle or a handle in a door. The door lock can be widely applied to the field of mechanical or electronic door locks.

Description

Technical Field

[0001] The present invention relates to the field of doors and door locks, and is a lock opener that can be easily installed on the outside of an indoor door and automatically unlocks the lock or performs the required unlocking when exposed to critical high temperatures in a fire. The invention also relates to a handle shaft that can be used to integrally integrate the lock opener with a door handle that can be rotated to open the door. Background Art

[0002] In a product described in patent number CN202022523830.6 and titled "An unlocker that can be installed on the outside of an indoor door and release stored energy elastic force when encountering high temperatures in a fire", the inner side of the locking buckle is in a "V" shape and can rotate around its buckle shaft. The locking buckle mechanism that can control the locking buckle to lock or release the energy spring force and the locking buckle are subjected to the tension from the energy spring in the stored energy state. For an unlocker that requires super-strong energy spring force, the reliability of this mutual tension is not as strong as the reliability of the mutual bearing pressure.

[0003] The present invention improves a product in the above-mentioned patent, so that in the improved product, the locking buckle mechanism that can control the locking buckle to lock or release the elastic force of the energy storage spring and the locking buckle are subjected to the pressure generated by the energy storage spring in the energy storage state, so that the elastic force of the super-strong energy storage spring can be reliably locked, which is convenient for the production and application of the unlocking device that needs to be installed with the super-strong energy storage spring. The present invention is further capable of being arranged in the same body with the door opening handle inside the door or with the handle or door opening handle that can be rotatably opened inside the door; for this purpose, the present invention also provides a handle shaft that can be arranged in the same body with the unlocking device and the handle or door opening handle that can be rotatably opened inside the door. The handle shaft of the present invention can be used for both the present invention and the above-mentioned patent or other unlocking methods.

[0004] The utility model has a simple structure, is easy to manufacture, has reliable performance, and is easy to use. Not only can it be used independently on the outside of an indoor door, but it can also be used in conjunction with an internal door handle, an escape door handle or handle, or an internal door pull. The utility model is widely applicable to fire-resistant door locks and fire-resistant doors manufactured from mechanical or electronic door locks, such as fire-resistant and theft-proof doors, fire-resistant room doors, fire-resistant shopping mall and office building doors, movie theaters, kindergartens, and related locks, and has broad market prospects. Summary of the Invention

[0005] In order to achieve the above-mentioned purpose, the technical solution of the unlocking device containing a bimetallic device in the present invention is as follows: an outer cover shell, an inner cover plate, an energy storage spring, a bimetallic device, a locking buckle, a locking buckle mechanism and a locking column, and an unlocking rope. A locking buckle groove in the shape of a groove is provided in the locking buckle, a bimetallic device is provided on the outer side close to the outer cover shell, an energy storage spring is provided on one side of the outer cover shell and the inner cover plate, one end of the energy storage spring and one side of the outer cover shell and the inner cover plate serve as a support point for energy storage elastic force, and a locking column that can be used for energy storage spring energy storage locking is connected to the other end of the energy storage spring, and the locking column can also interact with the locking buckle groove in the locking buckle. The locking post is provided with a cam which is adapted to move the locking post in a direction such that the locking post can move in a predetermined direction and the locking post can move in a predetermined direction, and the locking post can move in a predetermined direction such that the locking post can move in a predetermined direction and the locking post can move in a predetermined direction such that the locking post can cooperate with the locking post groove in the locking buckle to lock and release the energy storage spring. The locking buckle is also provided with a buckle shaft which allows it to rotate. The locking buckle is installed on the inner side of the outer cover shell and the inner cover plate through its buckle shaft. The lock is locked and unlocked when the bolt is unlocked, and the lock is unlocked when the bolt is unlocked. The locking buckle mechanism is arranged and installed on the inner side of the outer cover shell and the inner cover plate through its buckle mechanism rotating shaft. One end of the locking buckle mechanism is provided with a head that can cooperate with the card table of the locking buckle, and the other end of the locking buckle mechanism is connected to one end of the bimetallic device. As the locking buckle mechanism is pulled and displaced by the heat deformation of the bimetallic device, the locking buckle can be disengaged from the pressure support control of the card table and the head by the energy storage spring component of the energy storage spring, so that the locking buckle can rotate around its buckle rotating shaft, so that the locking column can be disengaged from the lock of the lock buckle slot in the locking buckle, so that the energy storage spring can release its energy storage elastic force and drive the unlocking rope to achieve the required unlocking.

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

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

[0008] A rope threading tube is provided on the outside of the unlocking pull rope. The rope threading tube can be a hose that can be bent but is difficult to compress, or a hard tube or grooved tube that cannot be bent. One end of the rope threading tube can be connected and fixed to the outer cover shell or the inner cover plate, and the other end of the rope threading tube can be directly or indirectly connected and fixed to the inner side of the lock panel or the inner side of the door body. The unlocking pull rope can be directly or indirectly connected to the unlocking component or the unlocking wire arm in the lock that can open the lock body by penetrating the rope threading tube.

[0009] The unlocking rope through-hole is arranged on the surface of the inner cover plate, and the unlocking rope and rope threading tube can pass through the unlocking rope through-hole of the inner cover plate into the lock. The outer cover shell and the inner cover plate are integrally arranged with the fixed and non-rotatable door handle or door handle inside the door in the lock.

[0010] An isolation bracket is provided on one side of the outer cover shell and the inner cover plate, which can keep a certain distance between the bimetallic device and the door body or the lock panel.

[0011] A handle elbow is provided on the outer side of the inner cover plate with an unlocking rope through hole, which can connect the outer cover shell and the inner cover plate with a handle shaft or a handle rotating shaft of a door handle in the door.

[0012] The invention relates to a handle shaft that can be used for a lock opener, comprising: a handle connecting end that can be interconnected with a handle elbow, a lock panel mounting section, a handle reset spring force section and a lock opening square rod insertion hole, and is characterized in that: a shaft unlocking rope through-hole that allows the unlocking rope to pass through is provided on the outer side of the handle shaft between the handle connecting end and the lock opening square rod insertion hole.

[0013] A nut hole or a stud is provided on the outside of the shaft unlocking pull rope through hole, which can be used to set the rope through tube and install it on the handle shaft; or a hollow nut or a hollow stud is provided on the inside or outside of the shaft unlocking pull rope through hole, which can be used to set the rope through tube and install it on the handle shaft; or a male plug or a female slot is provided on the outside of the shaft unlocking pull rope through hole, which can be used to set the rope through tube and install it on the handle shaft; or a female slide buckle groove or a male slide buckle head is provided on the outside of the shaft unlocking pull rope through hole, which can be used to set the rope through tube and install it on the handle shaft.

[0014] The unlocking rope through-hole is arranged on the outer cover shell, and a handle elbow is provided on the outside of the unlocking rope through-hole, which can be used to arrange the outer cover shell and the inner cover plate together with the door opening handle of the rotatable door opening handle in the door of the lock and can be used to connect the outer cover shell and the handle shaft to each other. The handle elbow can be fixedly connected to the handle connecting end in the handle shaft provided with the axial unlocking rope through-hole, and the unlocking rope through-hole is communicated with the axial unlocking rope through-hole in the handle shaft. A rope passing tube is provided on the outside of the handle shaft, which can communicate with the axial unlocking rope through-hole and allow the unlocking rope to pass through. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 1 It is a schematic diagram of the principle structure of an embodiment of the utility model in the energy storage locking state.

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

[0018] Figure 3 It is a schematic diagram of the principle structure of yet another embodiment of the present utility model in the energy storage locking state.

[0019] Figure 4 is available for Figure 1 、 Figure 2 、 Figure 3 Schematic diagram of an inner cover plate in FIG.

[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 elbow is shown in FIG.

[0021] Figure 6 This is a left side sectional view of another embodiment of the present invention in which a handle elbow and a handle shaft are provided on the outer cover for mutual connection, showing the principle structure of the embodiment in the energy storage and locking state.

[0022] Figure 7This is a left side sectional view of another embodiment of the present invention in which a handle elbow and another handle shaft are connected to each other on the outer cover shell, showing the principle structure of the embodiment in the energy storage and locking state.

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

[0024] Figure 9 The utility model is a left side sectional schematic diagram of the principle structure of a handle shaft, an unlocking rope and a rope pipe for connecting and installing another application.

[0025] Figure 10 The utility model is a left side sectional schematic diagram of the principle structure of the handle shaft, the unlocking rope and the rope through the tube for connection and installation.

[0026] Figure 11 It is a main view schematic diagram of the principle structure of another handle shaft of the present invention.

[0027] Figure 12 yes Figure 10 A left side sectional schematic diagram of the principle structure of the handle shaft, the unlocking rope and the rope tube connection application.

[0028] Figure 13 It is a schematic diagram of a left side cross-section of another installation application of the handle shaft and the rope threading tube of the utility model.

[0029] Figure 14 It is a schematic diagram of the left side cross-sectional principle structure of another installation application of the handle shaft and the rope threading tube of the utility model.

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

[0031] Figure 16 It is a schematic diagram of the left side cross-sectional principle structure of another installation application of the handle shaft and the rope threading tube of the utility model.

[0032] Figure 17 It is a schematic diagram of the left side cross-sectional principle structure of another installation application of the handle shaft and the rope threading tube of the utility model.

[0033] In the figure: 1. Outer cover, 10. Locking column slide, 11. Shell screw hole, 16. Button slide, 17. Manual energy storage button, 170. Force button, 2. Inner cover, 20. Unlocking rope through hole, 21. Cover screw hole, 23. Buckle shaft mounting hole, 24. Buckle mechanism shaft mounting hole, 25. Handle elbow, 3. Energy storage spring, 30. Rope threading tube, 31. Unlocking rope, 32. Connecting buckle, 34. Rope threading fixed end, 36. Rope pull return spring, 37. Pressure step, 38. Rope threading connection end, 39. Stud hole, 4. Bimetallic device, 41. Heat shrink wire, 43. Jumper, 5. Locking buckle, 50. Locking column, 51. Locking buckle mechanism, 510. Lock mechanism shaft, 52. Mechanism return spring, 53. Protrusion, 54. Buckle shaft, 55. Mechanism pull rope, 56. Locking buckle Slot, 57. Buckle reset spring, 58. Head, 59. Card table, 6. Handle shaft, 60. Axis unlocking rope through hole, 61. Handle connecting end, 62. Lock panel mounting section, 63. Handle reset spring force section, 64. Unlocking square stick socket, 65. Hollow nut, 66. Hollow stud, 67. Nut hole, 68. Stud, 69. Female slide buckle slot, 691. Male slide buckle head, 610. Nut, 7. Lock panel, 71. Handle shaft reset spring card point, 72. Panel reset spring card point, 73. Handle reset spring, 74. Limiting ram horn, 75. Pressure arm, 76. Female slot, 77. Male plug, 78. Spring card, 79. Handle connecting screw, 791 female screw hole, 70. Axis handle connecting screw hole, 701. Connecting bolt, 702. Connecting nut, 703 Connecting bolt mounting hole. DETAILED DESCRIPTION

[0034] like Figure 1 or Figure 2 or Figure 3 And its matching Figure 4 or Figure 5 、 Figure 6 and Figure 8 、 Figure 7 and Figure 8As shown in the figure, it includes: an outer cover shell 1, an inner cover plate 2, an energy storage spring 3, a bimetallic device 4, a locking buckle 5, a locking buckle mechanism 51 and a locking column 50, as well as an unlocking rope 31. A groove-shaped locking buckle groove 56 is provided in the locking buckle 5, a bimetallic device 4 is provided on the outer side close to the outer cover shell 1, and an energy storage spring 3 is provided on one side of the outer cover shell 1 and the inner cover plate 2. One end of the energy storage spring 3 and one side of the outer cover shell 1 and the inner cover plate 2 serve as a support point for the energy storage elastic force, and the other end of the energy storage spring 3 is connected to a locking column 50 that can be used for energy storage locking of the energy storage spring 3. The locking column 50 can also cooperate with the locking buckle groove 56 in the locking buckle 5 as another support point for the energy storage elastic force of the energy storage spring 3; the lock The fixed column 50 has a raised cylindrical shape. A manual energy storage button 17 is provided on one side of the locking column 50, which contains a pressure-bearing step 37 and allows the locking column 50 and the energy storage spring 3 to be deformed and stored energy by manual pushing. A locking column slide groove 10 that allows the locking column 50 to make a directional reciprocating motion is also provided in the outer cover shell 1 and the inner cover plate 2, so that the locking column 50 can cooperate with the lock groove 56 in the locking buckle 5 to achieve locking and releasing the energy storage spring 3. The locking buckle 5 is also provided with a buckle shaft 54 ​​that allows it to rotate. The locking buckle 5 is arranged and installed on the inner side of the outer cover shell 1 and the inner cover plate 2 through its buckle shaft 54. The locking buckle 5 is also provided with a buckle reset that can facilitate the locking column 50 to enter the lock groove 56 3. The lock mechanism 51 is a spring 57, which is a kind of spring with a spring element 52, which is a spring element of the lock mechanism 51. The lock mechanism 51 is a spring 57, which is a spring element of the lock mechanism 51. The lock mechanism 51 is a spring 57, which is a spring element of the lock mechanism 51. The lock mechanism 51 is a spring 51 ... The latch mechanism shaft 510 is arranged and installed on the inner side of the outer cover shell 1 and the inner cover plate 2. One end of the locking latch mechanism 51 is provided with a top head 58 that can cooperate with the card table 59 of the locking latch 5. The other end of the locking latch mechanism 51 is connected to one end of the bimetallic device 4. The locking latch 5 can be disengaged from the pressure support control of the card table 59 and the top head 58 by the energy storage spring 3 as the locking latch mechanism 51 is pulled and displaced by the bimetallic device 4 due to heat deformation, so that the locking latch 5 can rotate around its latch shaft 54, so that the locking column 50 can be disengaged from the lock of the locking latch groove 56 in the locking latch 5, so that the energy storage spring 3 can release its energy storage elastic force and drive the unlocking rope 31 to achieve the required unlocking.

[0035] The utility model can be pressed Figure 1 、 Figure 2 、 Figure 6 and Figure 8 As shown in the figure, the bimetallic device 4 is set to a heat shrinkable wire 41 of nickel-titanium alloy. The heat shrinkable wire 41 can be preferably arranged near the outside of the outer cover shell 1. One end of the heat shrinkable wire 41 can be directly or indirectly fixed to the outer cover shell 1 or the inner cover plate 2, and the other end of the heat shrinkable wire 41 can be directly or indirectly connected to the locking buckle mechanism 51. The utility model can also be Figure 3 As shown in the figure, the bimetallic device 4 is set as a jumper 43 that can generate sudden deformation tension under a certain temperature difference. One end of the jumper 43 is connected and fixed to the outer cover shell 1, and the end of the jumper 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 As shown, for the convenience of illustration, the unlocking rope 31 is set and connected to the locking column 50; in actual application, the unlocking rope 31 can also be set and connected to the side of the manual energy storage button 17 connected to the locking column 50 or on the end of the energy storage spring 3 that can release the energy storage elastic force as needed.

[0037] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 6 、 Figure 7 As shown, in order to avoid the loss of tension and thread of the energy storage elastic force from the energy storage spring 3 by the unlocking rope 31 during operation, a rope threading tube 30 is provided on the outside of the unlocking rope 31. The rope threading tube 30 can be a hose that can be bent but is difficult to compress or a hard tube or grooved tube that cannot be bent. One end of the rope threading tube 30 can be connected and fixed to the outer cover shell 1 or the inner cover plate 2, and the other end of the rope threading tube 30 can be used to be directly or indirectly connected and fixed to the inner side of the lock panel or the inner side of the door body. The unlocking rope 31 can be directly or indirectly connected to the unlocking component or the unlocking wire arm in the lock that can open the lock body by penetrating the rope threading tube 30.

[0038] The utility model can be pressed Figure 4 、 Figure 5 As described in, the unlocking rope through hole 20 is provided on the surface of the inner cover plate 2, and the unlocking rope 31 or rope threading tube 30 can pass through the unlocking rope through hole 20 of the inner cover plate 2 into the lock, and the outer cover shell 1 and the inner cover plate 2 are provided integrally with the fixed and non-rotatable door handle or door handle inside the door in the lock.

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

[0040] In practical application, the utility model can be Figure 5 As shown in the figure, a handle elbow is provided on the outer side of the inner cover plate with the unlocking rope through hole, which can connect the outer cover shell and the inner cover plate with the handle shaft or handle rotating shaft of the door handle inside the door.

[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 utility model can be used for the handle shaft 6 of the unlocking device, including: a handle connecting end 61 that can be interconnected with the handle elbow 25, a lock panel mounting section 62, a handle return spring force section 63 and an unlocking square rod insertion hole 64, and its characteristic is that: an axis unlocking rope through-hole 60 is provided on the outer side of the handle shaft 6 between the handle connecting end 61 and the unlocking square rod insertion hole 64 to allow the unlocking rope 31 to pass through.

[0042] The utility model can be pressed Figure 6 or Figure 13 As shown in the figure, a nut hole (67) or a stud (68) is provided on the outside of the shaft unlocking rope through hole (60) to allow the rope through tube (30) to be installed on the handle shaft (6); the utility model can also be installed according to Figure 9 or Figure 10 As shown in the figure, a hollow nut (65) or a hollow stud (66) is provided on the inner or outer side of the shaft unlocking rope through hole (60) to enable the rope through tube (30) to be installed on the handle shaft (6); the utility model can also be installed according to Figure 14 or Figure 15 As shown in the figure, a male plug (77) or a female slot (76) is provided on the outside of the shaft unlocking rope through hole (60) to enable the rope through tube (30) to be installed on the handle shaft (6); the utility model can also be installed according to Figure 16 or Figure 17 As shown in the figure, a female sliding buckle groove (69) or a male sliding buckle head (691) is provided on the outside of the shaft unlocking rope through hole (60) to enable the rope through tube (30) to be installed on the handle shaft (6).

[0043] This utility model can refer to Figure 6 and Figure 8 、 Figure 7 and Figure 8 、 Figure 11 and Figure 12As shown, the unlocking rope through-hole 20 is provided on the outer cover shell 1, and a handle elbow 25 is provided on the outer side of the unlocking rope through-hole 20, which can be used to set the outer cover shell 1 and the inner cover plate 2 as a whole with the door opening handle of the rotatable door opening handle in the door of the lock and can be used to connect the outer cover shell 1 and the handle shaft 6 to each other. The handle elbow 25 can be fixedly connected with the handle connecting end 61 in the handle shaft 6 which is provided with the axial unlocking rope through-hole 60, and the unlocking rope through-hole 20 is communicated with the axial unlocking rope through-hole 60 in the handle shaft 6. A rope threading tube 30 is provided on the outer side of the handle shaft 6, which can communicate with the axial unlocking rope through-hole 60 and allow the unlocking rope 31 to pass through.

[0044] Unlocking device specific embodiment 1

[0045] See also 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 shell 1 of the present invention can be made of high-temperature resistant and heat-conducting materials, such as metal iron, aluminum, copper, or steel. A heat-shrinkable wire made of nickel-titanium alloy or a bimetallic strip that easily deforms when heated can be used to make the bimetallic device 4 of the present invention, and the specific size and shape of the bimetallic device 4 can be determined according to actual needs. The energy storage spring 3 suitable for the present invention can be set or selected based on the unlocking force and travel required to be applied by the unlocking component in the lock. The unlocking pull cord 31 required by the present invention can be made of a metal steel wire or a metal-chemical fiber composite cord that is resistant to high temperatures, fatigue, and not easily stretched. The inner cover plate 2, locking buckle 5, and locking buckle mechanism 51 of the present invention can also be made of a metal or other composite material that is resistant to high temperatures and has high strength, as needed. The manual energy storage button 17 of the present invention, which includes a pressure-bearing step 37, can be made of a metal material or a metal-plastic composite material with relatively high strength as needed. A locking column 50 having a raised cylindrical shape is installed at one end of the manual energy storage button 17. The raised cylindrical shape includes a cylindrical shape, a polygonal shape, or a multifaceted shape. The multifaceted shape also includes a regular raised cylindrical shape or an irregular raised cylindrical shape having a polygonal cross-section and a polyhedron shape. For example, a cylindrical raised cylindrical shape and a polygonal raised cylindrical shape can be regarded as a regular raised cylindrical shape in the present invention, and a raised three-dimensional triangle or a raised three-dimensional trapezoid can be regarded as an irregular raised cylindrical shape in the present invention. As long as the raised cylindrical locking buckle 50 can cooperate with the locking buckle 5 and can lock and release the stored elastic force of the energy storage spring 3, it is sufficient. A force button 170 is installed at the other end of the manual energy storage button 17 to facilitate external force pressing the energy storage spring 3 to store energy. The locking buckle mechanism 51 of the utility model can be made of metal or metal-plastic composite materials with higher strength as needed. The shape of the locking buckle mechanism 51 can be set to a straight column, a curved column or a flat straight or curved column as needed, and one end of the column is set to a head 58 that can cooperate with the locking buckle 5, and the other end of the column is set to be directly or indirectly connected to the bimetallic device 4; and a buckle mechanism shaft 510 that allows it to rotate and a mechanism reset spring 52 that can help its head 58 enter the locking buckle 5 card table 59 to reset are installed between the two ends of the locking buckle mechanism 51.

[0046] See also 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-shaped locking groove 56 is provided in the locking buckle 5, and a buckle shaft 54 ​​is provided in the locking buckle 5 to allow it to rotate. The locking buckle 5 can be installed in the inner side of the outer cover shell 1 and the inner cover plate 2 through its buckle shaft 54; Figure 6 As shown in the figure, the buckle shaft 54 ​​is set in the buckle shaft installation hole 23 on the outer cover shell 1; in actual application, the buckle shaft installation hole 23 can also be set in the inner cover plate 2 as needed; in order to enhance the force strength of the buckle shaft 54, the buckle shaft installation hole 23 can also be set in both the outer cover shell 1 and the inner cover plate 2 to correspond to the two ends of the buckle shaft 54. A buckle return spring 57 is then installed on the locking buckle 5 to allow the locking buckle groove 56 to correspond to the locking column 50 and facilitate the locking column 50 to enter the locking buckle groove 56; for the convenience of illustration, Figure 1 、 Figure 2 、 Figure 3 、 Figure 8 In the figure, the buckle reset spring 57 is a thrust spring. In practical applications, the thrust spring of the buckle reset spring 57 shown in the figure can be changed to a spring as needed. Figures 1 to 3 The torsion spring used for the mechanism position spring 52. A latch 59 is provided on the locking buckle 5 on the other side of the latch shaft 54 ​​corresponding to the latch groove 56 of the locking buckle 5, which can correspond to the locking buckle mechanism 51 and cooperate with the head 58 in the locking buckle mechanism 51 to control the rotation of the locking buckle 5 to lock and release the elastic force of the energy storage spring 3. In order 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 releases the energy, so that it can facilitate the locking column 50 to enter the latch groove 56 again, the utility model is provided with a protrusion 53 with an arc surface on the outer edge of the latch 59, which can contact the locking buckle mechanism 51 and can be controlled by the locking buckle mechanism 51 to control 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 shell 1 and the inner cover plate 2 through the latch mechanism shaft 510 between its two ends; as shown in FIG. Figure 6 As shown in the figure, the locking mechanism shaft 510 is set in the locking mechanism shaft installation hole 24 on the outer cover 1; in actual application, the locking mechanism shaft installation hole 24 can also be set in the inner cover 2 as needed; similarly, in order to enhance the force strength of the locking mechanism shaft 510, the locking mechanism shaft installation hole 24 can also be set in both the outer cover 1 and the inner cover 2 to correspond to the two ends of the locking mechanism shaft 510. A mechanism reset spring 52 is then installed on the locking locking mechanism 51 to reset it; Figure 1 、 Figure 2 、 Figure 3 、 Figure 8 The buckle mechanism reset spring 52 shown in FIG is a torsion spring. In actual application, the buckle mechanism reset spring 52 can also be changed to a torsion spring as needed. Figures 1 to 3The thrust spring for buckling the reset spring 57.

[0047] See also 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 set and installed near the outer side of the outer cover shell 1. The bimetallic device 4 of this utility model can be made by selecting the required bimetallic ratio material according to the actual application and the demand for critical high temperature unlocking. Figure 1 、 Figure 2 、 Figure 6 、 Figure 7 As shown in FIG, the bimetallic device 4 is set to be a heat shrink wire 41 of nickel-titanium alloy; the heat shrink wire 41 manufacturer has a qualitative model, which can be purchased directly according to needs. According to actual needs, the heat shrink wire 41 with a critical temperature of 60 degrees C, 65 degrees C, 70 degrees C, or 90 degrees C can be selected. The heat shrink wire 41 produced by the foreign company DYNALLOY, Inc. can be selected. and Muscle Brand nickel-titanium alloy heat shrink wire. The company's nickel-titanium alloy is usually made of 55%-56% nickel and 44%-45% titanium. Slight changes in its composition can significantly affect the performance of the material. Its heat shrinkage rate is between 2%-5%, usually 4%. The execution temperature of the brand's nickel-titanium alloy heat-shrink wire is 60-110 degrees C. In actual use, the wire or heat-shrink wire with the required execution temperature can be purchased from the manufacturer. For example, you can choose a nickel-titanium alloy heat-shrink wire with a critical execution temperature of 65 degrees C to 90 degrees C, and a diameter of 0.15 mm (heat-shrinkage tensile force of 128 grams) to 0.51 mm (heat-shrinkage tensile force of 1424 grams). You can also search on Taobao as needed to buy heat-shrink wire containing nickel-titanium alloy produced by domestic manufacturers, also known as muscle wire. The length, model and number of strands of the heat-shrink wire 41 can be set according to the required force and stroke of pulling the locking buckle mechanism 51. The utility model can also be pressed Figure 3As shown in the figure, the bimetallic device 4 is configured as a kicker 43 formed by stamping a bimetallic strip. The kicker 43 with the required pulling force and pulling stroke can be manufactured using existing snap-type thermostat manufacturing processes, technologies, and principles. The desired bimetallic strip material and thickness, as well as the shape and area of ​​the kicker, can be set or selected based on the required pulling force and stroke of the locking catch 51. For example, most existing snap-type thermostats use a bimetallic strip with an active metal layer made of manganese-copper-nickel, nickel-chromium-iron, copper-tin-zinc, etc., and a passive metal layer made of a nickel-iron alloy. These strips are then stamped into a disc or concave arc shape as shown in the figure to produce the kicker of the present invention. For example, to produce a jumper 43 that generates a sudden jump at a critical high temperature of approximately 70°C, bimetallic strips 5J1480 and 5J2011 produced by Shanghai Xinxi Alloy Materials Co., Ltd. can be used to produce the jumper 43 of this utility model. The specific stamping shape and size of the jumper 43 can be determined by the properties of the bimetallic strip material and the actual required jump stroke and sudden change in tension. As long as the jump stroke is greater than 3 mm and can pull the required locking latch 51, allowing the preset energy storage spring 3 to release the locked energy spring force, it is sufficient. Bimetallic strips produced by other manufacturers that are also suitable for use in this utility model can also be used to produce the jumper 43 of this utility model. Since the manufacturing principles and methods of jump-type thermostats are already existing technologies, we can leverage the advantages of our country's industrial chain and provide the parameters such as the deformation stroke and tension, as well as the size and size range of the jumper 43 of this utility model to relevant manufacturers, who can then manufacture the jumper 43 required by this utility model.

[0048] See also Figure 3 、 Figure 6 As shown in , in actual production, it is best to install the bimetallic device 4 on the surface close to the outside of the outer cover shell 1 or in the outer surface close to the outer cover shell 1 so that it can quickly feel the heat source of the fire; Figure 1 and Figure 2 In order to make the structure clear, the bimetallic device 4 is drawn on the inner side of the outer cover shell 1; in actual production, the utility model can refer to the Figure 3 、 Figure 6 、 Figure 7As shown in FIG, the heat shrink wire 41 and the jumper 43 constituting the bimetallic device 4 are installed near the surface of the outer cover 1. This is done so long as the bimetallic device 4 can quickly sense the heat source of a fire and does not affect normal operation of the system. In actual applications, the heat shrink wire 41 can also be installed on the outside of the outer cover 1 using a thin wire groove embedding technique or a thin (copper) tube insertion technique. Then, one end of the heat shrink wire 41 constituting the bimetallic device 4 is directly fixed to the outer cover 1 or connected via a steel wire rope or a terminal and then indirectly fixed to the outer cover 1. Then, as required, the other end of the heat shrink wire 41 is directly connected to the locking buckle mechanism 51 or indirectly connected to the locking buckle mechanism 51 via a steel wire rope, a transmission rod or a terminal. As long as it can be ensured that the heat shrink wire 41 can shrink according to the agreed temperature and can pull the locking buckle mechanism 51 to move, so that it can be separated from the support control of the card table 59, the locking column 50 can be separated from the locking buckle 5, and the energy storage spring 3 can release the stored energy elastic force, driving the unlocking rope 31 to achieve the required unlocking. The same utility model can also be referred to. Figure 3 , one end of the jumper 43 constituting the bimetallic device 4 is connected and fixed to the outer cover shell 1, and then the other end of the jumper 43 that can produce the required deformation amplitude is connected to the locking buckle mechanism 51 through the mechanism pull rope 55, so that the locking buckle 5 can be disengaged from the support control of the card table 59 as the locking buckle mechanism 51 is pulled and displaced by the jumper 43 due to heat deformation, so that the locking column 50 can be disengaged from the lock of the locking buckle 5, so that the energy storage spring 4 can release the stored energy elastic force, and drive the unlocking pull rope 31 to achieve the required unlocking.

[0049] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 6 、 Figure 7 As shown in , an energy storage spring 3 is installed on one side of the outer cover shell 1 and the inner cover plate 2. The installation and use position setting of the energy storage spring 3 must avoid conflict with the bimetallic device 4. In the above figure, one end of the energy storage spring 3 is installed on the outside of the locking column slide 10 on one side of the outer cover shell 1 and the inner cover plate 2, and used as a support point for the energy storage force of the energy storage spring 3; the other end of the energy storage spring 3 is connected to the locking column 50 through a manual energy storage button 17 containing a pressure step 37, and the locking column 50 can also cooperate with the locking groove 56 in the locking buckle 5 to serve as another support point for the energy storage force of the energy storage spring 3. Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 6 、 Figure 7As shown in the figure, a locking column slot 10 is provided in the outer cover shell 1 and the inner cover plate 2 to allow the locking column 50 to perform directional reciprocating motion. The cross-section of the force button 170 of the manual energy storage button 17 shown in the figure and the connecting section of the locking column 50 and the slot of the locking column slot 10 can be set to a geometric shape that can only allow the locking column 50 to perform directional reciprocating linear motion. If the cross-section of the manual energy storage button 17 is matched with the geometric shape of the slot of the button slot 16, the effect of the locking column 50 performing linear reciprocating motion will be better. This can better ensure that the locking column 50 can automatically enter the locking slot 56 of the locking buckle 5 as the manual energy storage button 17 is pressed and the energy storage spring 3 is energized, so that the locking column 50 can cooperate with the locking slot 56 to realize the energy storage elastic force of the locking energy storage spring 3. For the sake of convenience, the locking column slot 10 is shown as being provided on the outer cover 1. In actual application, the locking column slot 10 may be provided on the inner cover 2 or on the inner sides of both the outer cover 1 and the inner cover 2 as required. Figure 1 、 Figure 2 、 Figure 3 、 Figure 6 Figure 7 In the figure, for the convenience of illustration, the energy storage spring 3 shown is a thrust spring and is arranged to be installed on the outside of the locking column slide groove 10 located between the outer cover shell 1 and the inner cover plate 2. In actual application, the energy storage spring 3 can be changed to the torsion spring in the patented product mentioned above as needed. For details, please refer to patent number CN202022523830.6, and the patent name is "An opener that can be installed on the outside of an indoor door and can release stored energy in the event of high temperature in a fire."

[0050] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 6 、 Figure 7 As shown in FIG, an unlocking pull rope 31 is installed or connected to one end of the energy storage spring 3 that can release the energy storage elastic force. Figure 1 、 Figure 2 、 Figure 3 、 Figure 8 For the convenience of illustration, the unlocking rope 31 is set and installed on the locking column 50; in actual application, as needed, referring to Figure 7, the unlocking rope 31 can be set and installed or connected to the side of the manual energy storage button 17 connected to the locking column 50, or set and installed on the end of the energy storage spring 3 that can release the stored energy force.

[0051] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 6 and Figure 8 、 Figure 7 and Figure 8, then the locking buckle mechanism 51 is installed on the inner side of the outer cover shell 1 and the inner cover plate 2 through its buckle mechanism rotating shaft 510, and one end of the locking buckle mechanism 51 is installed to be a head 58 that can cooperate with the card platform 59 of the locking buckle 5. Then the other end of the locking buckle mechanism 51 is directly or indirectly connected to one end of the bimetallic device 4, so that the locking buckle 5 can be disengaged from the pressure support control of the card platform 59 and the head 58 by the energy storage spring 3 as the locking buckle mechanism 51 is pulled and displaced by the bimetallic device 4 due to heat deformation. Under the action of the energy storage spring 3, the locking buckle 5 can rotate around its buckle rotating shaft 54, so that the locking column 50 can be disengaged from the lock of the lock buckle slot 56 in the locking buckle 5, so that the energy storage spring 3 can completely release its energy storage elastic force and drive the unlocking rope 31 to achieve the required unlocking. In actual application, the utility model can be used according to needs Figure 1 、 Figure 2 As shown in FIG, the other end of the locking mechanism 51 is directly connected to one end of the bimetallic device 4; the utility model can also be connected according to the needs Figure 3 、 Figure 6 As shown in the figure, the other end of the locking buckle mechanism 51 is indirectly connected to one end of the bimetallic device 4 through a mechanism pull rope 55. The mechanism pull rope 55 in the utility model refers to: a high temperature resistant rope or a steel wire rope or a metal-plastic composite rope or a transmission rod that is not easily deformed by tension and can transmit tension.

[0052] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 Then, an unlocking rope through hole 20 is provided in the outer cover shell 1 and the inner cover plate 2 to lead the unlocking rope 31 into the lock. The unlocking rope through hole 20 can be adjusted as needed. Figure 1 、 Figure 2 、 Figure 3 、 Figure 6 、 Figure 7 As shown, the unlocking rope through hole 20 is set and installed in the outer cover shell 1; Figure 4 、 Figure 5 As shown in the figure, the opening hole 20 for the unlocking cord is set in the inner cover plate 2. Alternatively, the opening hole 20 for the unlocking cord can be set between the outer cover shell 1 and the cover box of the inner cover plate 2 as needed. Screws or riveting techniques can be used, or the shell screw holes 11 provided on the outer cover shell 1 and the cover screw holes 21 provided on the inner cover plate 2 can be packaged using existing lock manufacturing processes and technologies to produce an unlocking device that can be used in a situation where the unlocking cord 31 is connected to the unlocking component of the lock in a straight line and short distance.

[0053] Specific embodiment 2 of the unlocking device

[0054] Following the above-mentioned specific embodiment of the unlocking device, in order to avoid the unlocking rope 31 from the tension of the energy storage spring 3 and the loss of the thread during use and operation, the utility model can refer to 1, Figure 2 、 Figure 3 、 Figure 6 、 Figure 7 As shown in FIG, a rope threading tube 30 is installed outside the unlocking rope 31. The purpose of using the rope threading tube 30 is to reduce the friction resistance or travel loss caused by the unlocking rope 31 pulling the unlocking parts and the line arm in the lock in a non-linear or remote manner. Figures 1 to 3 In the embodiment, the rope threading tube 30 may be a flexible tube that can be bent but is difficult to be compressed, or a rigid tube or grooved tube that cannot be bent; Figure 6 、 Figure 7 In the embodiment, since the rope threading tube 30 is to be linked with the outer cover shell 1 or the inner cover plate 2, the rope threading tube 30 must be a flexible hose that is easy to bend but difficult to be compressed. A rope threading tube connection end 38 is provided at one end of the rope threading tube 30 for connecting and fixing the rope threading tube 30 to the outer cover shell 1 or the inner cover plate 2 or the handle shaft 6. Figures 1 to 3 In the figure, the rope through-tube 30 is connected and fixed to the outer cover shell 1 or the inner cover plate 2 via the rope through-tube connecting end 38; Figures 6 to 17 In the embodiment, since the handle shaft 6 is always fixedly connected to the outer cover shell 1 and the inner cover plate 2 during use, the rope threading tube 30 installed on the handle shaft 6 can also be considered to be connected and fixed to the outer cover shell 1 and the inner cover plate 2 through the rope threading tube connecting end 38 and the handle shaft 6. A rope threading tube fixing end 34 is installed at the other end of the rope threading tube 30, which can be used to directly or indirectly connect and fix to the inner side of the lock panel or the inner side of the door body, so that the unlocking rope 31 can be directly or indirectly connected to the unlocking component or unlocking wire arm in the lock that can open the lock body by passing through the rope threading tube 30. Please refer to 1, Figure 2 、 Figure 3 、 Figure 6 、 Figure 7As shown in , the rope threading tube 30 of the unlocking rope 31 of the present invention can be made of high-temperature resistant and high-strength materials, and the manufacturing process and technology of the hand brake wire threading tube of a bicycle or motorcycle can also be used to make the soft rope threading tube 30 required by this utility model; a metal hose that can be bent but cannot be tightened and compressed by the unlocking rope 31 can also be used to make the rope threading tube 30 of the present invention. As long as the rope threading tube 30 produced can effectively help the unlocking rope 31 transmit the energy storage elastic force and tension stroke from the energy storage spring 3, it can pull the unlocking component provided in the lock that cooperates with it to unlock, and implement the required opening of the lock. In order to facilitate the connection between the unlocking rope 31 and the unlocking component in the lock, a connecting buckle 32 that can be interconnected with the unlocking component in the lock is installed at the end of the unlocking rope 31; to ensure that the connecting buckle 32 and the unlocking rope 31 can automatically reset in time at room temperature and do not interfere with the normal use of the lock, the present utility model can refer to Figure 1 、 Figure 2 、 Figure 3 As shown in FIG, a cord return spring 36 is installed between the outer end of the cord threading tube 30 and the connecting buckle 32 to maintain the connecting buckle 32 in its original reset state. The unlocking cord 31, which specifically functions as the unlocking component of a lock, is known in the prior art. See Patent Publication No. CN214463293U, entitled "A Linear Arm Device for Assisting in Unlocking a Lock in the Event of a Fire." The cord 9 described in this patent is equivalent to the unlocking cord 31 of the present invention. By employing screw or riveting techniques, or by encapsulating the outer cover 1 with the cover plate screw holes 11 and the inner cover plate 2 with existing packaging techniques and technologies, a lock opener can be manufactured for applications where the unlocking cord 31 is connected to the unlocking component of a lock in a non-linear and long-distance manner.

[0055] Specific embodiment 3 of the unlocking device

[0056] Following the above-mentioned specific embodiments of the unlocking device 1 and 2, in actual applications, the present invention can, as needed, set and install an isolation bracket on one side of the outer cover shell 1 and the inner cover plate 2 to keep the bimetallic device 4 at a certain distance from the door body or lock panel. The isolation bracket can be made of a high-temperature resistant non-thermal conductive material with reliable strength to prevent illegal unlocking by heat sources outside the door. The product of the present invention containing the isolation bracket can be fixedly connected to the door body or lock panel inside the door by using nail riveting processes and technologies or high-temperature resistant adhesive technologies. Mounting screw holes can also be set and installed on the isolation bracket as needed to enable the present invention to be installed on the outside of the door body in the room or on the wall inside the room. By using screws or riveting technology, or by using the shell screw holes 11 provided on the outer cover shell 1 and the cover plate screw holes 21 provided on the inner cover plate, combined with the packaging process and technology in existing lock making, it is possible to make an unlocking device that can be conveniently installed on the outside of the door in the room or on the wall near the danger zone, and the unlocking rope 31 is non-linear and long-distance connected to the unlocking component in the lock.

[0057] Specific embodiment 4 of the unlocking device

[0058] Following the above-mentioned specific embodiment 1 and specific embodiment 2 of the unlocking device, in order to enable the present invention to be installed in the same body as the door handle or door handle that is fixed and cannot rotate inside the door in the lock. Figure 4 、 Figure 5 As shown, a hole 20 for the unlocking rope 31 or the rope threading tube 30 is provided on the surface of the inner cover plate 2, and the rope threading tube connection end 38 is fixed to the inner side of the outer cover shell 1 and the inner cover plate 2 or the outer side of the inner cover plate 2, and then the outer cover shell 1 and the inner cover plate 2 are arranged in the same body as the door handle for opening the door that does not rotate inside the door and the door handle inside the door in the lock. The so-called same body arrangement here means that the outer cover shell 1 and the inner cover plate 2 of the utility model are made into an unlocking device with a shape that is roughly the same as the shape of the door handle for opening the door that does not rotate inside the door or the door handle inside the door in the existing lock, so that it has both the function of the unlocking device and the function of the door handle for opening the door that does not rotate inside the door or the daily use function of the door handle inside the door in the lock.

[0059] Handle shaft specific embodiment 1

[0060] In order to facilitate the outer cover shell 1 and inner cover plate 2 of the present invention to be manufactured and installed together with the door handle or escape handle for manually turning the door, the present invention also provides a handle shaft 6 that can be used for the unlocking device. Figure 6 and Figure 8 、 Figure 7 and Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 and Figure 12 、 Figure 13 , where: Figure 6 and Figure 8 、 Figure 7 and Figure 8 The handle shaft 6 in FIG. 7 is a schematic diagram showing the principle structure of two types of handle shafts 6 in which the installation direction of the indoor door handle can be changed after removing the handle connecting screw 79 or the connecting nut 702; Figure 11 and Figure 12 The handle shaft 6 in FIG. 1 is a schematic diagram showing the principle structure of another handle shaft 6 that can change the installation direction of the indoor door handle without removing the handle connecting screw or connecting nut. Figures 6 to 13 In the left side cross-sectional schematic diagram, except Figure 6 、 Figure 8 、 Figure 9 The lock panel installation section is equipped with two levels to facilitate the installation of bearings. Figures 6 to 13 The essence of the left side cross-sectional schematic diagram of the handle shaft 6 can be regarded as the same, including Figures 14 to 17 The left side view of the partial handle shaft 6 is shown in the figure. Therefore, the handle shaft 6 of the unlocking device of the present invention can be used, which can be summarized as follows: a handle connecting end 61 that can be interconnected with the handle elbow 25, a lock panel mounting section 62, a handle return spring force section 63 and an unlocking square rod insertion hole 64. The characteristic is that: an axis unlocking rope through hole 60 is provided on the outer side of the handle shaft 6 between the handle connecting end 61 and the unlocking square rod insertion hole 64 so that the unlocking rope 31 can pass through. The handle connecting end 61 of the present invention that can be interconnected with the handle elbow 25 can be pressed Figure 6 The handle connecting end 61 is made as shown in FIG. 1 , that is, a shaft handle connecting screw hole 70 and a handle connecting screw 79 matching the shaft handle connecting screw hole 70 are provided in the handle connecting end 61, and a female screw hole 791 is provided on the handle connecting elbow 25, which corresponds to the shaft handle connecting screw hole 70 and can cooperate with the handle connecting screw 79. The handle connecting end 61 of the utility model that can be connected to the handle elbow 25 can also be made according to the present invention. Figure 7 As shown in the manufacturing method, a connecting bolt 701 and a connecting nut 702 that can connect the handle shaft 6 and the handle elbow 25 are installed in the handle connecting end 61, and a connecting bolt installation hole 703 that can match the connecting bolt 701 and facilitate the installation of the connecting nut 702 on the connecting bolt 701 and realize the installation of the handle shaft 6 on the handle connecting elbow 25 is set and bored on the handle connecting elbow 25. In actual application, it can be installed as needed. Figure 7The solid connecting bolt 701 in the handle is changed into a hollow bolt connected to the handle shaft 6, so that the hollow bolt can not only be used as a connecting bolt 701, but also used as a part of the shaft unlocking rope through hole 60. In order to prevent the use of the unlocking square stick insertion hole 64 from interfering with the use of the unlocking rope 31 in the hollow bolt, it can be pressed Figure 7 As shown in the figure, the unlocking square rod insertion hole 64 is set to be different from the axis unlocking rope through hole 60. In order to prevent the handle connecting end 61 and the handle elbow 25 from idling and slipping under the action of external force after being connected, the existing connection process and technology of the handle connecting end 61 and the handle elbow 25 can be used to set the connection between the handle connecting end 61 and the handle elbow 25 to a non-circular cross-section and a non-rotatable connection. Figure 6 and Figure 8 、 Figure 7 and Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 and Figure 12 、 Figure 13 As shown in FIG, a shaft unlocking rope through-hole 60 is provided on the outer side of the handle shaft 6 between the handle connecting end 61 and the unlocking rod insertion hole 64, through which the unlocking rope 31 can pass. The specific shapes and dimensions of the handle connecting end 61, the lock panel mounting section 62, the handle return spring force section 63, and the unlocking rod insertion hole 64 in this embodiment, as well as their functions and applications in existing locks, are all within the scope of existing technology. Their specific manufacturing can refer to existing handle shaft manufacturing processes and technologies.

[0061] Specific embodiment 2 of the handle shaft

[0062] In order to better avoid the indoor door handle from causing friction damage to the unlocking rope 31 in the lock or the loss of thread and tension of the unlocking rope 31 during the working process when the indoor door handle is turned for a long time, or to reduce unnecessary manufacturing process and maintenance troubles, the utility model can be Figure 6 、 Figure 7 、 Figure 9 、 Figure 10 、 Figures 12 to 17 As shown in FIG, and referring to the second specific embodiment of the unlocking device, a rope threading tube 30 capable of inserting an unlocking rope 31 is arranged and installed on the outer side of the handle shaft 6.

[0063] This embodiment can be Figure 6 or Figure 13 As shown in FIG, a nut hole 67 or a stud 68 is provided on the outside of the shaft unlocking rope through hole 60 to install the rope through tube 30 on the handle shaft 6. Figure 6 、 Figure 13First, a stud hole 39 is drilled on the rope threading tube connection end 38 provided with the rope threading tube 30, which can correspond to the stud 68 or nut hole 67 installed on the handle shaft 6. Figure 6 As shown in FIG, a stud 68 that can cooperate with the thread in the nut hole 67 drilled on the handle shaft 6 is placed in the stud hole 39, and the stud 68 in the rope threading tube connection end 38 installed on the rope threading tube 30 is tightened with the nut hole 67 drilled on the handle shaft 6. Or refer to Figure 13 As shown in the figure, the bolt hole 39 in the rope threading tube connecting end 38 drilled on the rope threading tube 30 is inserted into a stud 68 installed on the outside of the handle shaft 6, and a nut 610 matching it is installed on the stud 68 and tightened.

[0064] This embodiment can also be Figure 9 or Figure 10 As shown in FIG, a hollow stud 66 or a hollow nut 65 is provided on the inner or outer side of the shaft unlocking rope through hole 60 to install the rope through tube 30 on the handle shaft 6. Figure 9 As shown, first, a hollow nut 65 that can be flexibly connected is installed on the rope threading tube connection end 38 provided with the rope threading tube 30, which can match the thread of the hollow stud 66 on the handle shaft 6 and allow the unlocking pull rope 31 to pass through. The flexible connection structure is adopted to facilitate the installation of the rope threading tube 30 and prevent the unlocking pull rope 31 from being entangled. In actual application, the hollow nut 65 can also be directly welded to the rope threading tube connection end 38 as needed; then the hollow nut 65 installed on the rope threading tube 30 is tightened with the hollow stud 66 installed on the handle shaft 6. Or refer to Figure 10 As shown, first, a hollow stud 66 that can match the thread of the hollow nut 65 on the handle shaft 6 and allow the unlocking rope 31 to pass through is installed on the rope passing tube connecting end 38 provided with the rope passing tube 30. The flexible joint structure is also adopted to facilitate the installation of the rope passing tube 30 and prevent the unlocking rope 31 from being entangled for a long time. In actual application, the hollow stud 66 can also be welded directly to the rope passing tube connecting end 38 as needed; then the hollow stud 66 installed on the rope passing tube 30 and the hollow nut 65 installed on the handle shaft 6 can be tightened.

[0065] This embodiment can also be Figure 14 or Figure 15 As shown in FIG, first, a male plug 77 or a female slot 76 is installed outside the shaft unlocking rope through hole 60 to install the rope through tube 30 on the handle shaft 6, and a spring clip 78 is installed in the female slot 76 to clamp the male plug 77. Figure 14, a female socket 76 is installed on the rope threading tube connection end 38 provided with the rope threading tube 30, which can match the male plug 77 installed on the handle shaft 6 and can insert and remove the male plug 77 and allow the unlocking pull rope 31 to pass through, and then the female socket 76 on the rope threading tube connection end 38 provided on the rope threading tube 30 is inserted into the male plug 77 installed on the handle shaft 6. Or refer to Figure 15 As shown, a male plug is installed on the rope threading tube connection end 38 provided with the rope threading tube 30, which can match a female socket 76 provided on the handle shaft 6 and can be inserted into and removed from the female socket 76 and allow the unlocking pull rope 31 to pass through. Then, the male plug 77 on the rope threading tube connection end 38 provided on the rope threading tube 30 is inserted into the female socket 76 provided on the handle shaft 6. In actual application, if an interference fit male plug 77 and female socket 76 are used, the spring clip 78 in the female socket 78 can be omitted as needed.

[0066] This embodiment can also be Figure 16 or Figure 17 As shown in FIG, a female sliding buckle groove 69 or a male sliding buckle head 691 is provided on the outer side of the shaft unlocking rope through hole 60 so that the rope through tube 30 can be inserted from one side into the handle shaft 6. Figure 16 As shown, a male slide groove 691 is installed on the rope threading tube connection end 38 provided with the rope threading tube 30, which can match the female slide buckle groove 69 installed on the handle shaft 6 and can be inserted or pulled out of the female slide buckle groove 69 from one side and can be connected with it and allow the unlocking pull rope 31 to pass through; then the male slide buckle groove 691 on the rope threading tube connection end 38 provided on the rope threading tube 30 is inserted from one side into the female slide buckle groove 69 installed on the handle shaft 6. Or refer to Figure 17 As shown, a female slide buckle groove 69 is installed on the rope threading tube connecting end 38 provided with the rope threading tube 30, which can match the male slide buckle groove 691 installed on the handle shaft 6 and can be inserted or pulled out of the male slide buckle groove 691 from one side and can be connected with it and allow the unlocking rope 31 to pass through. Then, the female slide buckle groove 69 provided on the rope threading tube connecting end 38 provided on the rope threading tube 30 can be inserted into the male slide buckle groove 691 installed on the handle shaft 6 from one side.

[0067] Specific embodiment 5 of the unlocking device

[0068] In order to further configure and manufacture the present invention together with an inner door handle or an escape door handle that can be opened by an external force in a lock, or to manufacture the present invention together with an inner door handle that cannot be opened by an external force in a lock, following the above-mentioned unlocking device embodiment 1 and unlocking device embodiment 2 and referring to the unlocking device embodiment 4, the present invention can also refer to Figure 5 As shown in , the appearance of the product composed of the outer cover shell 1 and the inner cover plate 2 of the present invention is arranged and manufactured to be similar to the appearance of the existing inner door handle or door handle or escape door handle that can be manually rotated to open the door; or the appearance of the product composed of the outer cover shell 1 and the inner cover plate 2 of the present invention is arranged and manufactured to be similar to the appearance of the existing inner door handle that cannot be rotated and can pull the door body to open the door, and a handle elbow 25 that can be interconnected with the handle shaft 6 or handle shaft of the inner door handle is installed on the outer side of the inner cover plate 2 provided with the unlocking rope through-hole 20. The handle shaft 6 refers to a handle shaft that can be used to manually rotate the inner door handle or door handle to open the door. The handle shaft refers to the installation shaft of an inner door handle that cannot rotate the inner door handle or door handle to open the door. In Figure 5 In the embodiment, a hollow bolt or hollow screw is used to connect the handle elbow 25 to the lock or door body. The hollow bolt or hollow screw not only allows the unlocking cord 31 to pass through, but also serves as a mounting shaft for the door handle. The unlocking cord 31 or cord tube 30 is then led through the bolt hole of the hollow bolt into the lock and connected to the unlocking component in the lock.

[0069] In actual application, it can be adjusted as needed. Figure 5 The handle elbow 25 structure is changed into Figure 6 and Figure 7 The handle elbow 25 is selected, and referring to the handle shaft specific embodiment 1 and the handle shaft specific embodiment 2 described above, the desired handle shaft 6 is selected and a rope passage 30 is provided and installed on the handle shaft 6, and the unlocking rope 31 is led out of the rope passage 30 into the lock and connected to the unlocking component in the lock. The outer cover shell 1 and the inner cover plate 2 are then made into a shape similar to the shape of a door handle or escape handle that can be manually rotated to open the door in a door in an existing lock. In actual application, the utility model can have the following two functions: first, it can facilitate outdoor personnel to rotate the outdoor door handle to open the door for rescue in the event of high temperature in a fire, and second, it can be used as a daily indoor door handle or escape handle.

[0070] Specific embodiment 6 of the unlocking device

[0071] Following the specific embodiment of the unlocking device, the specific embodiment of the unlocking device, refer to the specific embodiment of the handle shaft, the specific embodiment of the handle shaft, and the specific embodiment of the handle shaft. Figure 6 and Figure 8 、 Figure 7 and Figure 8 、 Figure 11 and Figure 12As shown, the unlocking rope through-hole 20 is set on the outer cover shell 1, and then a handle elbow 25 is set on the outside of the unlocking rope through-hole 20, which can be used to set the outer cover shell 1 and the inner cover plate 2 as a whole with the door opening handle of the door in the lock and can be used to connect the outer cover shell 1 and the handle shaft 6 to each other, so that the handle elbow 25 can be fixedly connected to the handle connecting end 61 in the handle shaft 6 in the handle shaft specific embodiment 1 and the handle shaft specific embodiment 2 of the present invention and ensure that the shaft unlocking rope through-hole 60 set in the handle shaft 6 is fixed to the unlocking rope through-hole The lock rope through-hole 20 corresponds to each other, and then it is necessary to select and refer to the connection scheme of the handle connecting end 61 and the handle elbow 25 in the handle shaft embodiment 1, and the handle elbow 25 and the handle shaft 6, and the selected handle elbow 25 is connected and fixedly connected to the handle connecting end 61 in the handle shaft 6, and then refer to and select the scheme of setting the rope threading tube 30 on the outside of the handle shaft 6 in the handle shaft embodiment 2, and then select and set the rope threading tube 30 on the outside of the handle shaft 6, which can communicate with the shaft unlocking rope through-hole 60 and allow the unlocking rope 31 to pass through. The handle elbow 25 described in this embodiment, which can be used to set the outer cover shell 1 and the inner cover plate 2 as the same body as the door opening handle for opening the door with a rotatable handle in the door of the lock, means: as long as the handle elbow 25 can be normally connected and work with the handle shaft 6, the outer shape of the outer cover shell 1 and the inner cover plate 2 can be made into a shape similar to the shape of the door opening handle for opening the door with a rotatable handle in the door 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 the non-energy storage state, according to the agreement, under the action of the lock reset spring 57, the lock groove 56 of the locking buckle 5 can easily allow the locking column 50 to enter. At this time, the force button 170 on the manual energy storage button 17 is pressed. Under the action of the pressure step 37 on the manual energy storage button 17, while driving the energy storage spring 3 to generate the energy storage elastic force, it also drives the locking column 50 connected to the manual energy storage button 17 into the lock groove 56. At the same time, the locking column 50 also pushes the locking buckle 5 to rotate, so that the top 58 of the locking buckle mechanism 51 can be locked under the action of its mechanism reset spring 52, and cooperate with the locking platform 59 of the locking buckle 5, so that the locking buckle 5 cannot rotate, thereby realizing the locking of the locking column 50 and the energy storage elastic force of the energy storage spring 3 by the locking buckle 5.

[0074] In actual application, in order to fully meet the requirements of locks that are convenient for fire rescue, the present invention can transform an electronic anti-theft lock or a mechanical anti-theft lock containing a door handle into a windproof passage door lock when sensing high temperature of a fire. In actual application, the unlocking rope 31 of the present invention or the connecting buckle 32 at one end of the rope tube 30 containing the unlocking rope 31 can be connected to the clutch ball in the electronic door lock, the clutch ball tray or push rod in the motor coupler, or the housing of the motor coupler that can be pulled; or the connecting buckle 32 at one end of the rope tube 30 containing the unlocking rope 31 can be connected to the sliding pin or unlocking component in the mechanical door lock that can be unlocked by a key in manual unlocking; so that in daily use, when the bimetallic device 4 senses a fire, the lock can be unlocked. When the disaster reaches a critical high temperature, at this time, according to the agreement, the bimetallic device 4 can pull the locking buckle mechanism 51, so that the top head 58 is separated from the support control of the card platform 59. At this time, the locking buckle 5 rotates under the pull of the energy storage spring 3, so that the locking column 50 can be separated from the lock of the locking buckle 5, so that the energy storage spring 3 can 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, according to the agreement, the outdoor personnel can press or turn the door handle outside the door to achieve the required door opening and rescue.

[0075] For fully automatic electronic locks, it is necessary to add a handle clutch system consisting of an unlocking square rod clutch or clutch pin driven by an unlocking pull rope 31 (seen in ordinary electronic locks), so that the auxiliary door opening handle set outside the door can drive the unlocking square rod controlled by the clutch pin or clutch. As long as the unlocking pull rope 31 can pull the clutch pin to put the lock into the unlocking state, an application product can be produced in which outdoor rescue personnel can turn the auxiliary handle to drive the unlocking square rod to implement the required door opening rescue.

[0076] In actual applications, as needed, the unlocking component can be pulled by the unlocking rope 3 to drive the unlocking square steel or unlocking square stick in the lock body, so that when the bimetallic device 4 is deformed by high temperature, the locking buckle mechanism 51 can be pulled as agreed so that the locking buckle groove 56 of the locking buckle 5 can be rotated, and the locking column 50 is disengaged from the locked buckle 5, so that the elastic force of the energy storage spring 3 can be released and drive the unlocking rope 31, so that the main lock tongue of the lock can be opened, and outdoor rescue personnel can implement door opening rescue by using another handle on the lock that can drive and control the inclined bolt.

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

[0078] In actual application, the utility model can also adopt the manufacturing process and technology of steel wire threading pipe as needed, make the rope threading pipe 30 longer, and can be installed on the outside of the room door beyond the door body or lock panel or on the wall of the room that is easy to sense and where fire risk may occur by gluing, welding or bracket screws.

[0079] The above embodiments of the present invention are not intended to limit the concept and application of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art will understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. Such modifications or replacements do not deviate from the essence of the corresponding technical solutions within the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A lock opener containing a bimetallic device, comprising: An outer cover shell (1), an inner cover plate (2), an energy storage spring (3), a bimetallic device (4), a locking buckle (5), a locking buckle mechanism (51) and a locking column (50), as well as an unlocking rope (31), wherein a locking buckle groove (56) in the shape of a groove is provided in the locking buckle (5), a bimetallic device (4) is provided on the outer side close to the outer cover shell (1), an energy storage spring (3) is provided on one side of the outer cover shell (1) and the inner cover plate (2), one end of the energy storage spring (3) and one side of the outer cover shell (1) and the inner cover plate (2) serve as a support point for the energy storage elastic force, and a locking column (50) capable of being used for energy storage locking of the energy storage spring (3) is connected to the other end of the energy storage spring (3), and the locking column (50) can also cooperate with the locking buckle groove (56) in the locking buckle (5) as another support point for the energy storage elastic force of the energy storage spring (3); the locking column (50) Its outer shape is a raised column. A manual energy storage button (17) containing a pressure-bearing step (37) is provided on one side of the locking column (50) and can manually push the locking column (50) and the energy storage spring (3) to deform and store energy. A locking column sliding groove (10) is also provided in the outer cover shell (1) and the inner cover plate (2) to allow the locking column (50) to perform directional reciprocating motion, so that the locking column (50) can cooperate with the locking groove (56) in the locking buckle (5) to lock and release the energy storage spring (3). The locking buckle (5) is also provided with a buckle rotating shaft (54) that allows it to rotate. The locking buckle (5) is arranged and installed on the inner side of the outer cover shell (1) and the inner cover plate (2) through its buckle rotating shaft (54). The locking buckle (5) is also provided with a buckle reset spring (57) that can facilitate the locking column (50) to enter the buckle groove (56).The unlocking rope (31) is connected to one end of the energy storage spring (3) capable of releasing the energy storage elastic force, and an unlocking rope through hole (20) capable of leading the unlocking rope (31) into the lock is further provided in the outer cover shell (1) and the inner cover plate (2). The unlocking rope is characterized in that: a locking buckle (5) on the other side of the buckle rotating shaft (54) corresponding to the locking buckle groove (56) of the locking buckle (5) is provided with a card table (59) which can correspond to the locking buckle mechanism (51) and can cooperate with the locking buckle mechanism (51) to control the rotation of the locking buckle (5) to lock and release the elastic force of the energy storage spring (3). The locking buckle mechanism (51) has a columnar shape, and a buckle mechanism rotating shaft (510) that can rotate it and a mechanism reset spring (52) that can reset it are provided between the two ends of the column. The locking buckle mechanism (51) is rotated by the buckle mechanism. The shaft (510) is arranged and installed in the inner side of the outer cover shell (1) and the inner cover plate (2). One end of the locking buckle mechanism (51) is provided with a head (58) that can cooperate with the card table (59) of the locking buckle (5). The other end of the locking buckle mechanism (51) is connected to one end of the bimetallic device (4). As the locking buckle mechanism (51) is pulled and displaced by the bimetallic device (4) due to heat deformation, the locking buckle (5) can be separated from the pressure support control of the card table (59) and the head (58) by the energy storage spring (3), so that the locking buckle (5) can rotate around its buckle rotating shaft (54), so that the locking column (50) can be separated from the locking of the locking buckle groove (56) in the locking buckle (5), so that the energy storage spring (3) can release its energy storage elastic force and drive the unlocking rope (31) to achieve the required unlocking.

2. The unlocking device comprising a bimetallic device as claimed in claim 1, wherein: The bimetallic device (4) is a heat-shrinkable wire (41) of nickel-titanium alloy, one end of which can be directly or indirectly fixedly connected to the outer cover shell (1) or the inner cover plate (2), and the other end of which can be directly or indirectly connected to the locking buckle mechanism (51); or, the bimetallic device (4) is a jumper (43) that can generate sudden deformation tension under a certain temperature difference, one end of which is connected and fixed to the outer cover shell (1), and the end of which can generate the required deformation amplitude is connected to the locking buckle mechanism (51) through a mechanism pull rope (55).

3. The unlocking device comprising a bimetallic device as claimed in claim 2, wherein: The unlocking pull rope (31) can be arranged on the locking column (50), or can be arranged on the side of the manual energy storage button (17) connected to the locking column (50) or on the end of the energy storage spring (3) that can release the energy storage elastic force as needed.

4. The unlocking device comprising a bimetallic device as claimed in claim 3, wherein: A rope threading tube (30) is provided on the outside of the unlocking pull rope (31). The rope threading tube (30) can be a flexible hose that can be bent but is difficult to be compressed, or a hard tube or grooved tube that cannot be bent. One end of the rope threading tube (30) can be connected and fixed to the outer cover shell (1) or the inner cover plate (2), and the other end of the rope threading tube (30) can be used to be connected and fixed to the inner side of the lock panel or the inner side of the door body. The unlocking pull rope (31) can be directly or indirectly connected to the unlocking component or the unlocking wire arm in the lock that can open the lock body by penetrating the rope threading tube (30).

5. The unlocking device comprising a bimetallic device as claimed in claim 4, wherein: The unlocking rope through-hole (20) is provided on the surface of the inner cover plate (2), and the unlocking rope (31) or rope threading tube (30) can pass through the unlocking rope through-hole (20) of the inner cover plate (2) into the lock, and the outer cover shell (1) and the inner cover plate (2) are integrally provided with a door handle or door handle that is fixed and cannot be rotated inside the door in the lock.

6. The unlocking device containing a bimetallic device as claimed in claim 4, characterized in that: An isolation bracket capable of keeping a certain distance between the bimetallic device (4) and the door body or the lock panel (7) is provided on one side of the outer cover shell (1) and the inner cover plate (2).

7. The unlocking device comprising a bimetallic device as claimed in claim 5, wherein: A handle elbow (25) is provided on the outer side of the inner cover plate (2) provided with an unlocking rope through hole (20) and can interconnect the outer cover shell (1) and the inner cover plate (2) with the handle shaft or handle rotating shaft of the door handle inside the door.

8. A lock opener containing a bimetallic device as claimed in claim 1, 2 or 3, characterized in that: The unlocking rope through hole (20) is provided on the outer cover (1), and a handle elbow (25) is provided on the outside of the unlocking rope through hole (20) for arranging the outer cover (1) and the inner cover plate (2) together with the door opening handle of the lock and for connecting the outer cover (1) and the handle shaft (6) to each other. A handle connecting end (61) that can be connected to the handle elbow (25) is provided on the handle shaft (6), and a lock panel mounting section (6) is also provided on the handle shaft (6). 2) A handle reset spring force section (63) and an unlocking square stick insertion hole (64); an axis unlocking rope through hole (60) for allowing an unlocking rope (31) to penetrate is further provided on the outer side of the handle rotating shaft (6) between the handle connecting end (61) and the unlocking square stick insertion hole (64); the unlocking rope through hole (20) is communicated with the axis unlocking rope through hole (60) in the handle rotating shaft (6); and a rope through tube (30) is further provided on the outer side of the handle rotating shaft (6) which can communicate with the axis unlocking rope through hole (60) and allow the unlocking rope (31) to penetrate.

9. The unlocking device comprising a bimetallic device as claimed in claim 8, wherein: A nut hole (67) or a stud (68) is provided on the outside of the shaft unlocking pull rope through hole (60) for mounting the rope through 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 through hole (60) for mounting the rope through 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 through hole (60) for mounting the rope through tube (30) on the handle shaft (6); or a female sliding buckle groove (69) or a male sliding buckle head (691) is provided on the outside of the shaft unlocking pull rope through hole (60) for mounting the rope through tube (30) on the handle shaft (6).

Images