Dehumidifier door lock

Abstract

The utility model discloses a dehumidifier door lock which comprises a lock body fixed to the outer wall of a door plate of a dehumidifier and a lock catch assembly fixed to the outer wall of a door frame of the dehumidifier and matched with the lock body. The lock body comprises a lock cover fixed to the door plate, an outer handle arranged on the outer wall of the lock cover and a spring bolt assembly arranged on the inner wall of the lock cover, and the lock catch assembly and the spring bolt assembly are matched to form a pressing state or a pressure relief state or an opening state. The spring bolt assembly comprises a connecting block rotationally connected to the upper portion of the rear end of the lock cover and a spring bolt body fixed to the rear end of the connecting block, the handle is arranged at the front end of the connecting block, the spring bolt body is round, and a first spring bolt, a second spring bolt, an unlocking part and first gear teeth are sequentially distributed on the periphery of the spring bolt body. The first spring bolt, the unlocking part and the first gear teeth are all arranged on the side wall of the spring bolt body, and the other end of the second spring bolt and the lock catch assembly are oppositely arranged in a spaced mode. The internal pressure of the door can be relieved, and the sealing degree of the door can be adjusted through the door lock.

Description

Technical Field

[0001] This utility model relates to a door lock, and more particularly to a dehumidifier door lock. Background Art

[0002] Dehumidifiers, also known as dehumidifiers, dryers, or dehumidifiers, are generally divided into two main categories: residential dehumidifiers and industrial dehumidifiers. They are a part of air-conditioned homes. Typically, a conventional dehumidifier consists of a compressor, heat exchanger, fan, water tank, casing, and controller. Its working principle is as follows: the fan draws humid air into the machine, where it passes through the heat exchanger, where water molecules in the air condense into water droplets. The treated dry air is then discharged outside the machine. This cycle maintains the indoor humidity at a suitable relative humidity. Dehumidifier units require regular maintenance and inspection. Usually, an inspection door is located on the front of the dehumidifier unit cabinet for easy access by workers.

[0003] The access doors on existing dehumidifiers are composed of a door panel and a door frame, with the door panel embedded in the frame. This creates a gap between the door panel and the frame. Due to the pressure difference between the dehumidifier and the outside atmosphere, air will rush from the high-pressure area to the low-pressure area through the gap between the door panel and the frame under the influence of the pressure difference. Although this type of access door has an internal sealing strip for sealing, the sealing performance deteriorates rapidly as the sealing strip ages due to the presence of gaps. At the same time, pressure is generated inside the dehumidifier. If the access door is opened directly, the pressure difference between the inside and outside can cause injury to the operator. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology by providing a dehumidifier door lock that solves the problems of the maintenance door not being able to release pressure and the maintenance door's sealing degree not being adjustable.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a dehumidifier door lock, comprising a lock body fixed to the outer wall of the dehumidifier door panel and a latch assembly fixed to the outer wall of the dehumidifier door frame and cooperating with the lock body. The lock body includes a lock cover fixed to the door panel, an outer handle disposed on the outer wall of the lock cover, and a latch assembly disposed on the inner wall of the lock cover. The latch assembly is disposed inside the lock cover and cooperates with the latch assembly to form three usage states, including a pressed state, a depressurized state, and an open state. The latch assembly includes a connecting block rotatably connected to the upper rear end of the lock cover and a latch assembly fixed to the rear end of the connecting block. The latch body has a handle located at the front end of the connecting block. The latch body is circular, with a first latch, a second latch, an unlocking part, and a first gear tooth arranged sequentially around its perimeter. The first latch, the unlocking part, and the first gear tooth are all located on the side wall of the latch body. The second latch is L-shaped, with one end located at the rear edge of the latch body and the other end positioned at a distance from the latch assembly. In the pressed state, the first latch contacts the latch assembly to form a tight fit between the door panel and the door frame. In the depressurized state, the other end of the second latch contacts the latch assembly to form a gap between the door panel and the door frame. In the open state, the unlocking part rotates to the position relative to the latch assembly.

[0006] Furthermore, a protrusion is provided on the front end face of the latch body, and an arc-shaped groove is provided on the inner wall of the lock cover, with the protrusion slidably disposed within the arc-shaped groove.

[0007] Furthermore, a gear is rotatably provided on the inner wall of the lock cover below the lock tongue assembly, the second gear tooth meshing with the first gear tooth, and an inner handle is provided on the gear inside the door.

[0008] Furthermore, the latch assembly includes a base fixed to the door frame and a latch slidably disposed on the base. The base is provided with a slide groove, and the latch is slidably disposed in the slide groove. Each end of the latch is provided with a slider slidably disposed in the slide groove, and the middle part is threadedly connected to the base by a first adjusting screw.

[0009] Furthermore, the cross-section of the opposite surface of the latch and the latch assembly is triangular, and the central protrusion is provided with an inwardly concave chamfer. The latch is in contact with the first latch or the second latch.

[0010] Furthermore, the latch is provided with a second adjusting screw on each side of the first adjusting screw, and the bottom of the second adjusting screw is in contact with the bottom of the slide groove.

[0011] The beneficial effects of the above-mentioned structure of this utility model are as follows: The dehumidifier door lock provided by this utility model, by designing three usage states of the latch assembly and the latch, can open the door a crack before opening the door, releasing excess pressure inside the dehumidifier, thereby protecting the operator. At the same time, an inner handle is set for linkage operation, allowing the door lock to be opened and closed from inside the door. Furthermore, the distance between the latch and the base can be adjusted by the first and second adjusting screws, thereby adjusting the pressure of the first latch on the door panel and the compression degree of the door panel on the sealing strip, thus achieving control of the sealing degree. Attached Figure Description

[0012] The technical solution of this utility model will be further described below with reference to the accompanying drawings:

[0013] Figure 1 This is a schematic diagram of the structure of the dehumidifier door lock described in this utility model.

[0014] Figure 2 This is a schematic diagram of the front end of the dehumidifier door lock according to the present invention.

[0015] Figure 3 This is a schematic diagram of the structure of the lock cover described in this utility model.

[0016] Figure 4 This is a schematic diagram of the locking tongue assembly described in this utility model.

[0017] Figure 5 This is a structural schematic diagram of the locking assembly described in this utility model.

[0018] Figure 6 This is a schematic diagram of the structure of the latch described in this utility model.

[0019] Figure 7 This is a schematic diagram of the structure of the base described in this utility model.

[0020] The components are: 1. Lock body itself; 2. Locking assembly; 3. Lock cover; 4. Outer handle; 5. Connecting block; 6. Lock tongue body; 7. First lock tongue; 8. Second lock tongue; 9. Unlocking part; 10. First gear tooth; 11. Protrusion; 12. Arc-shaped groove; 13. Gear; 14. Second gear tooth; 15. Base; 16. Locking buckle; 17. Slide groove; 18. Slider; 19. Protrusion. DETAILED DESCRIPTION

[0021] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0022] The designer of this utility model has innovatively proposed a dehumidifier door lock to meet the needs of dehumidifier door locks. This lock can release pressure inside the door and adjust the door's sealing degree through the lock.

[0023] like Figures 1 to 7 As shown, a dehumidifier door lock includes a lock body 1 fixed to the outer wall of the dehumidifier door panel and a latch assembly 2 fixed to the outer wall of the dehumidifier door frame and cooperating with the lock body 1. The lock body 1 includes a lock cover 3 fixed to the door panel, an outer handle 4 disposed on the outer wall of the lock cover 3, and a latch assembly disposed on the inner wall of the lock cover 3. The latch assembly 2 is disposed inside the lock cover 3 and cooperates with the latch assembly to form three operating states, namely a pressed state, a depressurized state, and an open state. The latch assembly includes a connecting block 5 rotatably connected to the upper rear end of the lock cover 3 and a latch body 6 fixed to the rear end of the connecting block 5. The handle is disposed on the connecting block 3. At the front end of block 5, the latch body 6 is circular, with a first latch 7, a second latch 8, an unlocking part 9, and a first gear 10 arranged sequentially around it. The first latch 7, the unlocking part 9, and the first gear 10 are all located on the side wall of the latch body 6. The second latch 8 is L-shaped, with one end of the second latch 8 located at the rear edge of the latch body 6, and the other end positioned at a distance from the latch assembly 2. In the pressed state, the first latch 7 contacts the latch assembly 2 to form a tight fit between the door panel and the door frame. In the depressurized state, the other end of the second latch 8 contacts the latch assembly 2 to form a gap between the door panel and the door frame. In the open state, the unlocking part 9 rotates to the position opposite to the latch assembly 2.

[0024] The front end face of the latch body 6 is provided with a protrusion 11, and the inner wall of the lock cover 3 is provided with an arc-shaped groove 12. The protrusion 11 is slidably disposed in the arc-shaped groove 12, which can limit the rotation range of the latch body 6.

[0025] The inner wall of the lock cover 3 is provided with a gear 13 rotatably located below the lock tongue assembly. The second gear 14 on the gear 13 meshes with the first gear 10. An inner handle is provided on the gear 13 inside the door. The inner handle and the outer handle 4 are linked to operate, allowing the door lock to be opened and closed from inside the door.

[0026] The latch assembly 2 includes a base 15 fixed on the door frame and a latch 16 slidably disposed on the base 15. The base 15 is provided with a slide groove 17, and the latch 16 is slidably disposed in the slide groove 17. Each end of the latch 16 is provided with a slider 18 slidably disposed in the slide groove 17. The middle part is threadedly connected to the base 15 by a first adjusting screw. The latch 16 is provided with a second adjusting screw on each side of the first adjusting screw. The bottom of the second adjusting screw contacts the bottom of the slide groove 17. Adjusting the first adjusting screw and the second adjusting screw can adjust the compression of the door panel on the sealing strip, thereby adjusting the seal.

[0027] The cross-section of the latch 16 and the latch assembly opposite each other is triangular, and the central protrusion 19 is provided with an inward chamfer. The latch 16 contacts the first latch 7 or the second latch 8 to facilitate the engagement with the latch.

[0028] When in use, the door lock is in a pressed state, with the first latch 7 in contact with the latch assembly 2 to form a tight fit between the door panel and the door frame. When the outer handle 4 is turned, the latch body 6 follows the outer handle 4 to rotate, causing the first latch 7 to disengage from the latch 16. The second latch 8 then contacts the latch 16, creating a gap between the door panel and the door frame, thus releasing pressure. After the pressure is released, the outer handle 4 is turned again, and the latch body 6 follows the outer handle 4 to rotate, causing the second latch 8 to disengage from the latch 16. The unlocking part 9 rotates to the corresponding position of the latch assembly 2, opening the door panel and completing the unlocking process. At the same time, the operator can enter the dehumidifier and also drive the second gear 14 of the inner handle to mesh with the first gear 10, causing the latch body 6 to rotate, thus opening and closing the door lock from the inside.

[0029] Depending on the sealing condition of the door panel's sealing strip, adjusting the first and second adjusting screws can adjust the distance between the latch 16 and the base 15, thereby adjusting the compression of the latch 16 against the bolt and thus controlling the sealing degree of the door panel.

[0030] The beneficial effects of the above-mentioned structure of this utility model are as follows: The dehumidifier door lock provided by this utility model, by designing three usage states of the latch assembly and the latch, can open the door a crack before opening the door, releasing excess pressure inside the dehumidifier, thereby protecting the operator. At the same time, an inner handle is set for linkage operation, allowing the door lock to be opened and closed from inside the door. Furthermore, the distance between the latch and the base can be adjusted by the first and second adjusting screws, thereby adjusting the pressure of the first latch on the door panel and the compression degree of the door panel on the sealing strip, thus achieving control of the sealing degree.

[0031] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A dehumidifier door lock, comprising a lock body fixed to the outer wall of the dehumidifier door panel and a latch assembly fixed to the outer wall of the dehumidifier door frame and cooperating with the lock body, characterized in that, The lock body itself includes a lock cover fixed to the door panel, an outer handle set on the outer wall of the lock cover, and a latch assembly set on the inner wall of the lock cover. The latch assembly is set inside the lock cover and cooperates with the latch assembly to form three usage states, namely, a pressed state, a depressurized state, and an open state. The latch assembly includes a connecting block rotatably connected to the upper rear end of the lock cover and a latch body fixed to the rear end of the connecting block. The handle is set at the front end of the connecting block. The latch body is circular, with a first latch, a second latch, an unlocking part, and a first gear tooth arranged sequentially around its perimeter. The first latch, the unlocking part, and the first gear tooth are all set on the side wall of the latch body. The second latch is L-shaped, with one end of the second latch set at the rear edge of the latch body and the other end set at a distance from the latch assembly. In the pressed state, the first latch contacts the latch assembly to form a tight fit between the door panel and the door frame. In the depressurized state, the other end of the second latch contacts the latch assembly to form a gap between the door panel and the door frame. In the open state, the unlocking part rotates to the position opposite to the latch assembly.

2. The dehumidifier door lock as described in claim 1, characterized in that: The front end face of the latch body is provided with a protrusion, and the inner wall of the lock cover is provided with an arc-shaped groove, and the protrusion is slidably disposed in the arc-shaped groove.

3. The dehumidifier door lock as described in claim 1, characterized in that: The inner wall of the lock cover is provided with a gear that rotates below the lock tongue assembly. The second tooth on the gear meshes with the first tooth, and an inner handle is provided on the gear inside the door.

4. The dehumidifier door lock as described in claim 1, characterized in that: The latch assembly includes a base fixed on the door frame and a latch slidably disposed on the base. The base is provided with a slide groove, and the latch is slidably disposed in the slide groove. Each end of the latch is provided with a slider slidably disposed in the slide groove, and the middle part is threadedly connected to the base by a first adjusting screw.

5. The dehumidifier door lock as described in claim 4, characterized in that: The cross-section of the opposite surface of the latch and the latch assembly is triangular, and the central protrusion is provided with an inwardly concave chamfer. The latch is in contact with the first latch or the second latch.

6. The dehumidifier door lock as described in claim 4, characterized in that: The latch has a second adjusting screw on each side of the first adjusting screw, and the bottom of the second adjusting screw is in contact with the bottom of the slide groove.

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