Door lock handle and refrigeration equipment thereof

Abstract

The utility model provides a door lock handle and refrigeration equipment thereof, the door lock handle comprises an operating end and a locking end, the operating end comprises an outer shell, the outer shell forms the structure of the handle, an inner lock body, a trigger unit and an outer lock body are arranged in the outer shell, the inner lock body comprises a spring bolt locked to the locking end and a deflector rod for pressing to release the locking state of the spring bolt; the trigger unit comprises a trigger part, a transmission part and a reset spring enabling the trigger part and the transmission part to reset, the trigger part is arranged on the surface of the outer shell, and the trigger unit is used for receiving unlocking acting force and pressing the deflector rod through the transmission part to relieve the locking state of the inner lock body; the outer lock body comprises an actuating unit and a locking piece, the locking piece responds to the rotary motion of the actuating unit, the locking piece limits the triggering unit to release the locking state of the inner lock body based on the locking state of the outer lock body, the split lock design of the inner lock body and the outer lock body is adopted, the cabinet door is locked by locking the outer lock body, and the cabinet door is pulled by pressing the triggering part. And one-key unlocking can be realized.

Description

Technical Field

[0001] This utility model relates to the field of lock technology, and in particular to a door lock handle and its cooling device. Background Technology

[0002] Refrigeration equipment includes refrigerators, display cases, medical freezers, etc. Some refrigeration equipment stores high-value or high-risk items. For example, medical freezers often store vaccines, blood products, biological samples, and special medicines. Medical freezers need to be locked to prevent unauthorized personnel from taking them and to avoid misuse, abuse, or theft.

[0003] Currently, the locking position of the locks used in medical refrigerators is not in the same position as the handle. Some locking devices are located at the top or bottom of the door. When opening the door, it is necessary to operate in the locking position before pulling the handle, which is cumbersome. In addition, the locks do not have anti-collision lock function. When closing the door in the locked state, it is easy to accidentally operate and cause the locking parts to be damaged by a hard impact. Utility Model Content

[0004] To address the problems existing in the prior art, the first objective of this utility model is to provide a door lock handle, comprising an operating end and a locking end. The operating end includes a housing, which forms the structure of the handle. The housing contains an inner lock body, a trigger unit, and an outer lock body.

[0005] The inner lock body includes a latch that is locked to the locking end and a lever that can be pressed to release the latch from its locked state;

[0006] The triggering unit includes a triggering part, a transmission part, and a reset spring for resetting the triggering part and the transmission part. The triggering part is disposed on the surface of the outer shell. The triggering unit is used to receive the unlocking force and press the lever through the transmission part to release the locking state of the inner lock body.

[0007] The outer lock body includes an actuation unit and a locking plate. The locking plate responds to the rotational movement of the actuation unit and, based on the locking state of the outer lock body, restricts the trigger unit from releasing the locking state of the inner lock body.

[0008] Specifically, the inner lock body is an electromagnetic lock.

[0009] Specifically, the outer shell also includes a main mounting plate, which includes a first mounting surface, a second mounting surface, and a third mounting surface connected in sequence. The second mounting surface is perpendicular to the first mounting surface and the third mounting surface, respectively. The outer lock body is disposed in the first mounting surface, and the inner lock body is disposed in the second mounting surface.

[0010] Specifically, the transmission part includes a support part and an unlocking part that is bent and connected to the bottom of the support part. The locking plate is disposed below the unlocking part and includes a proximal end and a distal end.

[0011] Specifically, the trigger unit is disposed in the housing, the top of the handle is provided with an opening, the trigger part is a first unlocking button provided at the top opening of the handle, the support part is provided with a first spring groove, the first spring groove is provided with an upper connecting block, the main body mounting plate is provided with a matching second spring groove, the second spring groove is provided with a lower connecting block, and the two ends of the reset spring are respectively connected to the upper connecting block and the lower connecting block.

[0012] Specifically, the actuation unit is a mechanical lock, and the locking plate is cam-shaped and fixedly connected to the lock cylinder of the mechanical lock.

[0013] Specifically, the outer casing includes a handle front panel, a handle inner liner, and a handle side panel. A guide cavity is provided between the handle inner liner and the main body mounting plate, and the transmission part is disposed in the guide cavity.

[0014] Specifically, the locking end includes a lock nose seat and an end cap fixedly installed on the outside of the lock nose. The lock nose seat includes a fourth mounting surface, a fifth mounting surface, and a sixth mounting surface connected in sequence. The fifth mounting surface is perpendicular to the fourth mounting surface and the sixth mounting surface, respectively. The lock nose is provided in the fourth mounting surface.

[0015] Specifically, the bottom of the third mounting surface and the fourth mounting surface are respectively provided with a first padlock connecting part and a second padlock connecting part, and the first padlock connecting part and the second padlock connecting part are provided with matching padlock connecting holes, which are elongated.

[0016] The second objective of this utility model is to provide a refrigeration device, including a cabinet, a door, and the aforementioned door lock handle. The door includes a hinged side and an opening / closing side. The hinged side of the door is hinged to the cabinet, and the opening / closing side of the door opens and closes relative to the cabinet. An operating end is installed on the opening / closing side of the door, and a locking end is provided on the side wall of the refrigeration device opposite to the operating end.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. This utility model provides a door lock handle, which adopts a separate lock design of inner lock body and outer lock body. The inner lock body adopts an electromagnetic lock, which can be unlocked by key or remotely via electromagnetic lock, and has multiple unlocking methods. Regardless of whether the outer lock body is in the locked state, the bolt will not collide with the lock nose when closing the door, regardless of whether the first unlocking button is pressed. When closing the door, the bolt of the inner lock body can be locked into the lock nose. Whether the outer lock body is in the locked state does not affect the locking of the inner lock body, effectively solving the problem of lock collision in the prior art.

[0019] 2. When opening the door, the door lock handle can be unlocked with one click by pressing the unlock button and pulling the cabinet door. It can be operated with either hand and is ergonomic, with both unlocking and opening operations in a comfortable position.

[0020] 3. The operating surface is located on the front of the refrigeration equipment, and the lock can be tightened by operating it from the front. The side lock body is thin, allowing multiple refrigeration units to be placed close together, or a single door can be embedded in a narrow space. The door lock design does not affect the placement of the refrigeration equipment.

[0021] 4. The inner lock body increases the door's tension and retention force when locked, further improving the sealing performance. When the lock tongue is unlocked, it provides an outward elastic force to facilitate door opening. This is especially beneficial for deep-freezing refrigerators with internal and external pressure differences, reducing the pulling force required to open the door. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the usage state of this utility model;

[0023] Figure 2 This is a schematic diagram of the overall structure of this utility model in the first direction;

[0024] Figure 3 This is a schematic diagram of the overall structure of this utility model from a second direction;

[0025] Figure 4 This is a schematic diagram of the internal structure of this utility model in the first direction;

[0026] Figure 5 This is an enlarged view of part A;

[0027] Figure 6 This is a schematic diagram of the internal structure of this utility model in a second direction;

[0028] Figure 7 This is a schematic diagram of an electromagnetic lock structure in the prior art;

[0029] Figure 8 This is a schematic diagram of the cross-sectional structure of the operating end of this utility model;

[0030] Figure 9 This is a schematic diagram of the second embodiment of the triggering unit of this utility model;

[0031] Figure 10 This is a schematic diagram of the handle liner structure of this utility model;

[0032] Figure 11 This is a schematic diagram of the front panel structure of the handle of this utility model;

[0033] Figure 12 This is a schematic diagram of the end cap structure of this utility model;

[0034] Figure 13 This is a schematic diagram of the installation state of this utility model.

[0035] Reference numerals: 1. Operating end; 11. Outer shell; 111. Handle front panel; 112. Handle inner liner; 113. Handle side panel; 114. First slot; 115. First buckle; 116. Groove; 117. Guide wall; 12. Inner lock body; 121. Lock tongue; 122. Lever; 123. Iron core; 124. Electromagnetic coil; 125. Tower spring; 13. Trigger unit; 131. First unlocking button; 132. Support part; 133. Unlocking part; 134. Return spring; 135. First spring groove; 136. Upper connecting block; 137. Second unlocking button; 14. Outer lock body; 141. Mechanical lock; 142. Locking plate; 143. Proximal end; 1 44. Far end; 145. Nut; 15. Main mounting plate; 151. First mounting surface; 152. Second mounting surface; 153. Third mounting surface; 154. Handle part; 155. Second spring groove; 156. Lower connecting block; 157. Mounting part; 158. First padlock connecting part; 159. Padlock connecting hole; 16. Guide cavity; 17. Padlock connecting hole 159; 2. Locking end; 21. Lock nose seat; 211. Lock nose; 212. Fourth mounting surface; 213. Fifth mounting surface; 214. Sixth mounting surface; 215. Second padlock connecting part; 216. Second slot; 22. End cover; 221. Second buckle; 3. Cabinet door; 4. Cabinet body; 5. Padlock. Detailed Implementation

[0036] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0037] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] like Figures 1-12 As shown, this utility model provides a door lock handle, including an operating end 1 installed at the movable end and a locking end 2 installed at the fixed end. This door lock handle is particularly applicable to refrigeration equipment, including refrigerators, display cases, medical freezers, etc. For example, some medical freezers contain high-value or high-risk items, which need to be locked to ensure that only authorized personnel can access them, so as to maximize the safety of the samples.

[0039] The refrigeration equipment includes a door 3 and a cabinet 4. The door 3 is hinged within the cabinet 4. The door 3 includes a hinged side and an opening / closing side. The hinged side of the door 3 is hinged to the cabinet 4, and the opening / closing side of the door 3 opens and closes relative to the cabinet. A locking end 2 is fixedly installed in the cabinet 4 on the opening / closing side of the door 3. An operating end 1 is fixedly installed on the edge of the opening / closing side of the door 3 and moves with the door 3. The locking end 2 and the operating end 1 are positioned opposite each other and fixedly installed on the side wall of the cabinet 4. The operating end 1 includes a housing 11, which forms the structure of a handle. The housing 11 contains an inner locking body 12, a triggering unit 13, and an outer locking body 14. The inner locking body 12 includes a latch 121 and a lever 122 for pressing to release the latch 121 from its locked state. The latch 121 is locked to the locking end 2. The triggering unit 13 includes a triggering part, a transmission part, and a return spring 134 for resetting the triggering part and the transmission part. The triggering part is disposed on the surface of the housing 11. The triggering unit 13 receives the unlocking force and, through the transmission part, presses the lever 122 to release the locking state of the inner locking body 12. The outer locking body 14 includes an actuating unit and a locking plate 142. The locking plate 142 responds to the rotational movement of the actuating unit and, based on the locking state of the outer locking body 14, restricts the triggering unit 13 from releasing the locking state of the inner locking body 12.

[0040] Specifically, the operating end 1 includes a housing 11, within which a main mounting plate 15 is disposed. An inner lock body 12, a trigger unit 13, and an outer lock body 14 are disposed within the housing 11. The main mounting plate 15 is fixedly mounted on the side of the door 3. The locking end 2 includes a lock nose seat 21 and an end cap 22 fixedly mounted on the outside of the lock nose 211. The lock nose seat 21 is fixedly mounted on the side wall of the cabinet 4. The lock nose seat 21 faces the operating end 1 and has a lock nose 211. The lock tongue 121 can be inserted into the lock nose 211 to lock the door 3.

[0041] The outer casing 11 includes a handle front panel 111, a handle inner liner 112, and a handle side panel 113. The main mounting plate 15 includes a first mounting surface 151, a second mounting surface 152, and a third mounting surface 153 connected in sequence. The second mounting surface 152 is perpendicular to both the first mounting surface 151 and the third mounting surface 153. The first mounting surface 151 is located on the front of the door 3, and a vertically arranged handle portion 154 is provided in the first mounting surface 151. The handle front panel 111 is fixedly installed on the front side of the first mounting surface 151, and the handle inner liner 112 is fixedly installed on the rear side of the first mounting surface 151. The second mounting surface 152 is located on the side of the cabinet 4. One side of the second mounting surface 152 is fixedly connected to the door 3, and the other side of the second mounting surface 152 is provided with the handle side panel 113. The third mounting surface 153 is positioned towards the locking end 2, and the handle side panel 113 is fixedly connected to the third mounting surface 153.

[0042] The inner lock body 12 is fixedly connected to the second mounting surface 152 by bolts and is located between the second mounting surface 152 and the handle side panel 113. The inner lock body 12 includes a lever 122 that can be pressed to release the locking state. Specifically, an electromagnetic lock can be used. Electromagnetic locks are existing technology and are widely used in food delivery lockers, express delivery lockers, and storage lockers. Figure 6The diagram shows a feasible electromagnetic lock structure, including a lever 122, an electromagnetic coil 124, and a latch 121. The lever 122 and latch 121 are rotatably connected to a connecting post within the housing. A torsion spring is provided at the connection between the lever 122 and the connecting post, causing the lever 122 to rotate counterclockwise. A torsion spring is provided at the connection between the latch 121 and the connecting post, causing the latch 121 to rotate clockwise. A clearance groove is provided in the latch 121. When the lever 122 is in the locked state, it is engaged in the clearance groove, preventing the latch 121 from moving and keeping it locked. An iron core 123 is provided at the axis of the electromagnetic coil 124. A through hole is provided at the upper end of the iron core 123. One end of the lever 122 is fitted into the through hole. A spring 125 is fitted over the iron core 123. By pressing the lever 122 or by controlling the electromagnetic coil 124 to attract the iron core 123, the right end of the lever 122 moves downward, causing the left end of the lever 122 to lift up and disengage from the recess, releasing its obstruction of the bolt 121. The bolt 121 then rotates clockwise under the force of the torsion spring, ejecting the latch 211 outward, thus releasing the electromagnetic lock from locking the latch 211. When the door 3 is closed, the latch 211 inserts into the bolt 121 and rotates counterclockwise. The lever 122, driven by the torsion spring and the tower spring 125, rotates counterclockwise and re-engages in the recess, relocking the latch 211 into the bolt 121. The above structure is only one embodiment; any other electromagnetic lock with a lever 122 and unlocking mechanism by pressing can be used. In the second mounting surface 152, a wiring hole is provided. The control line of the electromagnetic lock is connected to the door body 3 through the wiring hole. The unlocking signal is sent to the electromagnetic lock through the electronic control method, and the electromagnetic coil 124 is energized, so that the coil attracts the iron core 123 to pull the lever 122 to open the lock tongue 121.

[0043] The inner lock body 12 increases the tension and holding force of the door body 3 when locked, further improving the sealing performance. When the lock tongue 121 is unlocked, it provides an outward elastic force to facilitate the opening of the door body 3. In particular, for deep-freezing refrigerators with internal and external pressure differences, it can reduce the pulling force when opening the door of the deep-freezing refrigerator.

[0044] In existing technologies, some locks exhibit a knock-out phenomenon during use. This knock-out occurs when, in the locked state, the bolt remains extended and cannot retract when the door is closed, causing the bolt to collide with the strike plate. This invention employs a separate lock design with an inner lock body 12 and an outer lock body 14. The inner lock body 12 uses an electromagnetic lock, ensuring that the bolt 121 of the inner lock body 12 remains open under the action of a torsion spring, regardless of whether the outer lock body 14 is locked. Therefore, when closing the door, the bolt will not collide with the strike plate, and the bolt 121 of the inner lock body 12 will lock into the strike plate 211. Furthermore, whether the outer lock body 14 is locked or not does not affect the locking of the inner lock body 12.

[0045] The handle is constructed from an outer shell 11. A trigger unit 13 is located within the handle, comprising a trigger section, a transmission section, and a return spring 134. Pressing the trigger section, via the transmission section, presses the lever 122, thereby releasing the locking state of the inner lock body 12. The handle is vertically oriented upwards, and a guide wall 117 is provided on the inner side of the handle liner. The guide wall 117 and the front panel 111 of the handle form a guide cavity 16, in which the transmission section is located.

[0046] As a first embodiment of the trigger unit 13, an opening is provided at the top of the handle. The trigger part is a first unlocking button 131 provided at the opening at the top of the handle. The transmission part includes a vertically arranged support part 132 and a horizontally bent unlocking part 133 connected to the bottom of the support part 132. A first spring groove 135 for installing a reset spring 134 is provided in the support part 132. An upper connecting block 136 is provided in the first spring groove 135. A matching second spring groove 155 is provided in the main body mounting plate 15. A lower connecting block 156 is provided in the second spring groove 155. The reset spring 134 is disposed in the first spring groove 135 and the second spring groove 155. The upper end of the reset spring 134 is connected to the upper connecting block 136, and the lower end of the reset spring 134 is connected to the lower connecting block 156. The reset spring 134 supports the trigger unit 13 upward. After the first unlocking button 131 is pressed, the reset spring 134 drives the trigger unit 13 to automatically reset. When unlocking, hold the handle and press the first unlock button 131 downwards with your thumb. After the transmission part moves a certain distance, the unlocking part 133 presses the lever 122 to release the inner lock body 12 from its locked state. To open the door, simply press the unlock button with your thumb and pull the cabinet door to achieve one-button unlocking. It can be operated with either hand, conforms to ergonomics, and both unlocking and opening operations are in a comfortable position.

[0047] like Figure 8 As shown, in the second embodiment of the trigger unit 13, compared with the first embodiment, the trigger part is a second unlock button 137 located at the bottom of the handle, and the second unlock button 137 is connected to the unlocking part 133. When unlocking, hold the handle and press the second unlock button 137 downwards. After the transmission part moves a certain distance, the unlocking part 133 presses the lever 122 to release the locking state of the inner lock body 12.

[0048] As a third embodiment of the trigger unit 13, compared with the first embodiment, the trigger part is a third unlocking button provided on the inner side wall of the handle. The third unlocking button is trigger-shaped, with one end hinged between the front panel 111 of the handle and the inner lining 112 of the handle, and the other end provided with a spring and a linkage structure connected to the support part 132. By pressing the third unlocking button, the transmission part is pressed down under the drive of the linkage structure. When unlocking, the hand holds the handle and presses the third unlocking button with the index finger. After the transmission part moves a certain distance, the unlocking part 133 presses the lever 122 to release the locking state of the inner lock body 12.

[0049] As a fourth embodiment of the trigger unit 13, compared with the first embodiment, the reset spring 134 is provided at the bottom of the unlocking part 133, and a third reset spring groove is provided in the main body mounting plate 15. The upper end of the reset spring 134 contacts the bottom of the unlocking part 133 and supports the unlocking part 133 upward.

[0050] The outer lock body 14 is disposed in the main mounting plate 15 and includes an actuation unit and a locking plate 142. The locking plate 142 responds to the rotational movement of the actuation unit. The actuation unit can be a mechanical lock 141 actuated by turning a key. The locking plate 142 is fixedly connected to the lock cylinder. Alternatively, it can be a smart lock such as a fingerprint lock or a combination lock actuated by a motor. The locking plate 142 is fixedly connected to the output shaft of the motor. As a preferred embodiment of this utility model, the outer lock body 14 is a mechanical lock 141. The locking plate 142 is fixedly connected to the lock cylinder by bolts and rotates around the lock cylinder. The locking plate 142 has a locking part. When the locking plate 142 is in the locked position, the locking part blocks the travel, preventing the transmission part from contacting the lever 122. When the locking plate 142 is in the unlocked position, the locking part of the locking plate 142 is rotated and moved away from the travel. At this time, the transmission part can press the lever 122 to open the latch 121.

[0051] Specifically, the locking plate 142 is cam-shaped and is located below the unlocking part 133. The locking plate 142 includes a proximal end 143 and a distal end 144. When the lock cylinder is in the locked state, the distal end 144 of the locking plate 142 is supported below the unlocking part 133 and blocked in the stroke, preventing the unlocking part 133 from moving downward. When unlocking, the lock cylinder drives the locking plate 142 to rotate 90 degrees to one side. The distal end 144 of the locking plate 142 rotates to a horizontal state, releasing the obstruction to the transmission part. At this time, the latch 121 can be opened by pressing the trigger part and pressing the lever 122 through the transmission part.

[0052] The operating surface of the control unit is located on the front of the refrigeration equipment, and it can be locked by operating from the front. The side lock body is thin, so multiple refrigeration equipment can be placed close together, or a single door body 3 can be embedded into a narrow space.

[0053] In the main mounting plate 15, to enhance the structural strength of the handle portion 154, reinforcing ribs are provided along the edge of the handle portion 154 in the second mounting surface 152. Mounting portions 157 are respectively provided on the upper and lower sides of the second mounting surface 152. The mounting portions 157 protrude towards the door body 3, with a protrusion height of 3-6 mm. The protruding surface of the mounting portion 157 is fixedly installed on the side of the door body 3. Multiple through holes are provided in the mounting portion 157 along the horizontal direction. Since there may be an edge misalignment of up to 3 mm between the door body 3 and the cabinet body 4 of different models of refrigeration equipment, and different models of door bodies 3 have different widths, the mounting portion 157 adopts a protruding design to accommodate the edge misalignment between different models of door bodies 3 and cabinet bodies 4. The multiple through holes arranged horizontally are suitable for door bodies 3 of various thicknesses, making the handle structure adaptable to different models of refrigeration equipment and improving the applicability of the equipment.

[0054] During the daily use of the refrigeration equipment, the door body 3 will sag due to long-term use. In order to avoid the sag of the door body 3 affecting the daily use of the lock, the sag of the door body 3 is provided with a design margin. When the locking end 2 is installed, the lock lug 211 is close to the lower side of the lock latch. The sag of the door body 3 within 3mm will not affect the normal use of the lock.

[0055] The main mounting plate 15 is fixedly connected to the handle front panel 111, handle inner liner 112, and handle side panel 113 by bolts. Reinforcing ribs are provided at the edges of the handle front panel 111 to enhance its strength. First slots 114 are provided on both sides of the handle front panel 111, and first clips 115 matching the first slots 114 are provided on both sides of the handle inner liner 112. The first slots 114 engage with the first clips 115, and the first mounting surface 151 of the main mounting plate 15 is clamped between the handle front panel 111 and the handle inner liner 112. Multiple threaded holes are provided on the inner side of the handle front panel 111, and through holes matching the threaded holes are provided in the handle inner liner 112. The handle front panel 111 and handle inner liner 112 are fixedly connected by bolts. The handle inner liner 112 and handle front panel 111 are fixed together by the clip structure and bolts to ensure sufficient strength of the handle.

[0056] Through holes are provided in the first mounting surface 151 and the handle front panel 111. The mechanical lock 141 passes through and is engaged in the through holes. External threads are provided on the outer periphery of the mechanical lock 141. The mechanical lock 141 is fixedly installed in the handle front panel 111 and the main body mounting plate 15 by a nut 145. Then, the lock cylinder and the locking plate 142 are fixedly connected by bolts. The first mounting surface 151 of the main body mounting plate 15 and the handle front panel 111 are fixedly connected by the inner lock body 12. One end of the handle side panel 113 is engaged with the inside of the handle front panel 111 and partially pressed against the handle inner liner 112. The other end is fixedly connected to the third mounting surface 153 by bolts.

[0057] The lock lug seat 21 includes a fourth mounting surface 212, a fifth mounting surface 213, and a sixth mounting surface 214 connected in sequence. The fifth mounting surface 213 is perpendicular to both the fourth and sixth mounting surfaces 212 and 214, respectively. A lock lug 211 is provided in the fourth mounting surface 212. Multiple through holes are provided in the fifth mounting surface 213 for fixing the lock lug seat 21 to the side wall of the cabinet 4. A second slot 216 is provided in the sixth mounting surface 214, and a second latch 221 matching the second slot 216 is provided in the end cap 22. A threaded hole is provided in the fourth mounting surface 212, and a matching through hole is provided in the end cap 22. One side of the end cap 22 is snapped into the sixth mounting surface 214, and the other side is threadedly connected to the fourth mounting surface 212 via bolts, thus fixing the lock lug seat 21 to the end cap 22.

[0058] The outer casing 11, end cap 22, main mounting plate 15, drive unit, and lock nose seat 21 are all made of metal. The third mounting surface 153 faces the locking end 2 in the locked state, and the fourth mounting surface 212 faces the operating end 1 in the locked state. Therefore, in the locked state, the fixed end or the locking end 2 cannot be removed from the outside, ensuring the safety of the door lock handle structure.

[0059] To prevent the door 3 from being unable to open due to lost keys or power outages preventing the electromagnetic lock from being opened electronically, a groove 116 is provided on the inner side of the handle side panel 113, facing the lever. This groove 116 serves as a vulnerable point that is easily damaged. The vulnerable point's appearance is consistent with the overall appearance of the handle side panel 113. When other methods of unlocking are unavailable, a sharp object such as a screw can be used to pierce and damage the vulnerable point. Then, a rod-like object can be inserted into the outer casing 11 to press the lever 122 and open the door 3, thus unlocking it in an emergency. After the door 3 is opened, the door handle can be replaced.

[0060] Furthermore, in some embodiments, a first padlock connecting portion 158 and a second padlock connecting portion 215 are provided at the bottom of the third mounting surface 153 and the fourth mounting surface 212. Matching padlock connecting holes 159 are provided in the first padlock connecting portion 158 and the second padlock connecting portion 215. Preferably, two padlock connecting holes 159 are provided in each of the first padlock connecting portion 158 and the second padlock connecting portion 215. The padlock connecting holes 159 are elongated to ensure that they can be hooked in even if there is misalignment. The two padlock connecting holes 159 are staggered and spaced a certain distance apart to ensure that the padlock 5 does not collide with the lock when closing the door when it is hooked on one side. The additional padlock connecting portion design allows for the use of two additional padlocks 5 in addition to the locking of the lock body 14, enabling multi-user control. Users can install mechanical locks, smart locks, or other padlocks 5 in the padlock connecting holes 159 according to their needs. Before opening the door 3, the padlocks 5 need to be unlocked and removed.

[0061] During installation, the handle front panel 111 is fixedly connected to the main mounting plate 15 via the outer lock body 14, and the locking plate 142 is fixedly connected to the lock cylinder. The inner lock body 12 is fixedly installed into the main mounting plate 15 using bolts. The first unlocking button 131 and the transmission part are installed. The return spring 134 is installed between the transmission part and the main mounting plate 15. The handle inner liner 112 is snapped into the handle front panel 111, and the handle inner liner 112 and the main mounting plate 15 are fixed with bolts. Then, the installed components are fixed onto the door body 3. The bolts at the elongated holes are pre-tightened first, and after adjusting the position, they are tightened completely. Finally, several dovetail screws are driven into the round holes to prevent loosening. The lock lug seat 21 is installed onto the cabinet body 4 with bolts. The two large-hole bolts are pre-tightened first, and after adjusting the position, they are tightened completely. Finally, several dovetail screws are driven into the round holes to prevent loosening. The effect after installation is as follows. Figure 12 As shown; finally, the handle side panel 113 and the end cap 22 are installed on the operating end 1 and the locking end 2, respectively.

[0062] When opening the door, insert the key into the outer lock body 14 and rotate it 90° to release the obstruction of the distal end 144 of the locking plate 142 below the unlocking part 133. Press the first unlocking button 131 and pull the door body 3 outward. Through the transmission part, the unlocking part 133 presses the lever 122. The bolt 121 pops out of the lock nose 211 under the action of the torsion spring to unlock the door body 3. Then, pull the handle to open the door body 3. When closing the door, press down slightly to ensure that the lock nose 211 can overcome the elastic force of the torsion spring inside the inner lock body 12, push the latch to the locked position, and the lever 122 engages in the clearance groove to lock the lock nose. When the door 3 is closed and the outer lock body 14 is not locked, pressing the first unlocking button 131 and pulling the handle will directly open the door 3. When the door 3 is locked, insert the key and rotate the lock cylinder in the opposite direction to make the bolt 121 return to its original position and block it below the unlocking part 133. At this time, the first unlocking button cannot be pressed. Whether the outer lock body 14 is locked or unlocked, the bolt 121 can be opened by controlling the electromagnetic lock to release the bolt seat 21 and pull the handle to open the door 3. If a padlock is installed at the padlock connection part, the padlock must be opened before opening the door 3.

[0063] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A door lock handle comprising an operating end (1) and a locking end (2), characterized in that, The operating end (1) comprises an outer shell (11) which constitutes a handle structure, an inner lock body (12), a trigger unit (13) and an outer lock body (14) are arranged in the outer shell (11), The inner lock body (12) comprises a lock tongue (121) locked to a locking end (2) and a push rod (122) for pressing to release the locking state of the lock tongue (121); The trigger unit (13) comprises a trigger part, a transmission part and a reset spring (134) for resetting the trigger part and the transmission part, the trigger part is arranged on the surface of the outer shell (11), the trigger unit (13) is used for receiving an unlocking force and pressing the push rod (122) through the transmission part to release the locking state of the inner lock body (12); The outer lock body (14) comprises an actuating unit and a locking piece (142), the locking piece (142) is responsive to the rotational movement of the actuating unit, and the locking piece (142) limits the trigger unit (13) to release the locking state of the inner lock body (12) based on the locking state of the outer lock body (14).

2. The door lockset according to claim 1, wherein, The inner lock body (12) is an electromagnetic lock.

3. The door lockset according to claim 1, wherein, The outer shell (11) further comprises a main body mounting plate (15), the main body mounting plate (15) comprises a first mounting surface (151), a second mounting surface (152) and a third mounting surface (153) connected in sequence, the second mounting surface (152) is perpendicular to the first mounting surface (151) and the third mounting surface (153) respectively, the outer lock body (14) is arranged in the first mounting surface (151), and the inner lock body (12) is arranged in the second mounting surface (152).

4. The door lockset according to claim 3, wherein, The transmission part comprises a support part (132) and an unlocking part (133) bent and connected at the bottom of the support part (132), the locking piece (142) is arranged below the unlocking part (133), and the locking piece (142) comprises a proximal end (143) and a distal end (144).

5. The door lockset of claim 4, wherein, The trigger unit (13) is arranged in the shell (11), the top of the handle is provided with an opening, the trigger part is a first unlocking button (131) arranged at the opening of the top of the handle, the support part (132) is provided with a first spring groove (135), the first spring groove (135) is provided with an upper connecting block (136), the main body mounting plate (15) is provided with a matching second spring groove (155), the second spring groove (155) is provided with a lower connecting block (156), and the two ends of the reset spring (134) are connected with the upper connecting block (136) and the lower connecting block (156) respectively.

6. The door lockset of claim 4, wherein, The actuating unit is a mechanical lock (141), the locking piece (142) is in the shape of a cam and is fixedly connected to the lock cylinder of the mechanical lock (141).

7. The door lockset of claim 3, wherein, The outer shell (11) comprises a handle front panel (111), a handle lining (112) and a handle side panel (113), a guide cavity (16) is arranged between the handle lining (112) and the main body mounting plate (15), and the transmission part is arranged in the guide cavity (16).

8. The door lockset according to claim 3, wherein, The locking end (2) comprises a lock nose seat (21) and an end cover (22) fixedly installed outside a lock nose (211), the lock nose seat (21) comprises a fourth mounting surface (212), a fifth mounting surface (213) and a sixth mounting surface (214) connected in sequence, the fifth mounting surface (213) is perpendicular to the fourth mounting surface (212) and the sixth mounting surface (214) respectively, and the fourth mounting surface (212) is provided with the lock nose (211).

9. The door lockset according to claim 8, wherein, The third mounting surface (153) and the bottom of the fourth mounting surface (212) are respectively provided with a first padlock connecting part (158) and a second padlock connecting part (215), the first padlock connecting part (158) and the second padlock connecting part (215) are provided with matched padlock connecting holes (159), and the padlock connecting holes (159) are long strip-shaped.

10. A refrigeration appliance comprising a cabinet (4), a door (3) and a door lock handle according to any one of claims 1-9, characterized in that, The door body (3) comprises a hinged side and an opening and closing side, the hinged side of the door body (3) is hinged to the cabinet body (4), the opening and closing side of the door body (3) is opened and closed relative to the cabinet body, the operating end (1) is installed on the opening and closing side of the door body (3), and the side wall of the refrigeration equipment is provided with the locking end (2) opposite to the operating end (1).

Images