Door lock structure, casement door and oxygen cabin
By designing a door lock structure that adapts to curved surfaces, the problem of traditional door locks being unable to adapt to the curved swing door on the outside of the oxygen chamber was solved, achieving good sealing and adaptability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YIYUAN LONGEVITY TECHNOLOGY (SHENZHEN) CO LTD
- Filing Date
- 2025-08-11
- Publication Date
- 2026-07-21
AI Technical Summary
Traditional door lock structures are difficult to adapt to the curved swing door on the outside of the oxygen chamber, resulting in poor sealing and failing to meet the sealing requirements of the oxygen chamber.
A door lock structure is designed, including a connecting component, first and second handles, the connecting component having an adapter for abutting a curved surface, combined with a limiting block and a sealing ring to ensure sealing and adaptability.
The door lock structure achieves good adaptability to curved swing doors and improves sealing performance, meeting the sealing requirements of oxygen chambers.
Smart Images
Figure CN224532455U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of oxygen chamber technology, and in particular to a door lock structure, a swing door and an oxygen chamber. Background Technology
[0002] An oxygen chamber, as a medical device, provides an oxygen-rich environment, increasing the oxygen content in the user's blood and tissues, thus serving functions such as health maintenance, postoperative recovery, fatigue relief, and adjunctive therapy. Depending on the internal pressure, oxygen chambers operate under positive pressure (including but not limited to micro-pressure or high-pressure conditions) where the internal pressure is greater than the external atmospheric pressure, and negative pressure (where the internal pressure is less than the external atmospheric pressure). When the oxygen chamber is under positive pressure, it is typically sealed using a sliding door located on the inside; when it is under negative pressure, it is typically sealed using a swing door located on the outside.
[0003] In related technologies, to accommodate the external shape of the oxygen chamber, the swing door located on the outside of the oxygen chamber is typically curved. Furthermore, to allow both users inside and personnel outside the oxygen chamber to open this swing door, a double-sided locking mechanism is required. However, traditional lock structures are ill-suited for curved doors, and their poor sealing performance fails to meet the airtightness requirements of the oxygen chamber. Utility Model Content
[0004] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a door lock structure that can better adapt to curved swing doors.
[0005] This application also proposes a swing door having the above-described door lock structure.
[0006] This application also proposes an oxygen chamber having the aforementioned door lock structure.
[0007] A door lock structure according to a first aspect embodiment of this application is used for an arc-shaped swing door, the door lock structure comprising:
[0008] A connecting component is provided for passing through a pre-set mounting hole on the swing door. The connecting component has at least one adapter component for abutting against the arc-shaped surface of the swing door. The adapter component is configured to adapt to the arc-shaped surface of the swing door.
[0009] The first handle is fixedly installed at one end of the connecting component;
[0010] The second handle is fixedly installed at the other end of the connecting component, and the first handle and the second handle are linked together through the connecting component.
[0011] The door lock structure according to the embodiments of this application has at least the following beneficial effects: during installation, the first handle is located on one side of the swing door, and the second handle is located on the other side of the swing door. Specifically, the connecting assembly has at least one adapter component for abutting against the arc-shaped surface of the swing door. The adapter component is configured to adapt to the arc-shaped surface of the swing door, thereby enabling the door lock structure of the application to better adapt to the arc-shaped swing door.
[0012] According to some embodiments of this application, the first handle is provided with an extension, and the door lock structure further includes a limiting block with a slot, wherein the first handle can be rotated until the extension is engaged in the slot.
[0013] According to some embodiments of this application, the connecting assembly includes a bushing and a spindle. The bushing is used to pass through a preset mounting hole on the swing door. The spindle is rotatably passed through the bushing. A first handle is fixedly disposed at one end of the spindle, a second handle is fixedly disposed at the other end of the spindle, and the adapter is sleeved on the bushing.
[0014] According to some embodiments of this application, the connecting assembly further includes a first locking nut, one end of the bushing has a first flange, and the first locking nut is sleeved on the bushing and threadedly connected to the bushing.
[0015] According to some embodiments of this application, the connecting assembly has two adapter components for clamping the swing door.
[0016] According to some embodiments of this application, the adapter component is an elastic element.
[0017] According to some embodiments of this application, a first washer is provided between the first locking nut and the adapter near the first locking nut. The first washer is sleeved on the bushing. The side of the first washer facing the swing door is configured as an arc-shaped surface so that the side of the first washer facing the swing door can adapt to the arc-shaped surface of the swing door.
[0018] According to some embodiments of this application, the side of the first flange facing the swing door is configured as an arcuate surface so that the side of the first flange facing the swing door can adapt to the arcuate surface of the swing door.
[0019] According to some embodiments of this application, the adapter is a rigid member, and the side of the adapter facing the swing door is configured as an arc-shaped surface so that the side of the adapter facing the swing door can adapt to the arc-shaped surface of the swing door.
[0020] According to some embodiments of this application, at least one sealing ring is fitted onto the mandrel.
[0021] According to some embodiments of this application, the mandrel is provided with an annular mounting groove for installing the sealing ring, and the sealing ring is partially embedded in the annular mounting groove.
[0022] According to some embodiments of this application, the connecting assembly further includes a second locking nut, the mandrel has a second flange, the second locking nut is sleeved on the mandrel and threadedly connected to the mandrel, and the bushing is sandwiched between the second locking nut and the second flange.
[0023] According to some embodiments of this application, the door lock structure further includes a first dust cover and a second dust cover sleeved outside the connecting assembly, wherein the first dust cover is used to be sandwiched between the first handle and the swing door, and the second dust cover is used to be sandwiched between the second handle and the swing door.
[0024] According to some embodiments of this application, a first locking screw threaded onto the first handle is disposed therethrough, and the first handle portion is clamped between the end of the mandrel and the head of the first locking screw; and / or,
[0025] The second handle is threaded with a second locking screw connected to the spindle, and the second handle portion is clamped between the end of the spindle and the head of the second locking screw.
[0026] According to some embodiments of this application, the slot has an opening for engaging the extension, and the opening is flared.
[0027] A swing door according to a second aspect embodiment of this application includes an arc-shaped door body and a door lock structure according to the first aspect embodiment of this application described above.
[0028] An oxygen chamber according to a third aspect of this application includes an arc-shaped swing door and a door lock structure according to the first aspect of this application described above.
[0029] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description
[0030] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0031] Figure 1 This is a schematic diagram of the structure of an oxygen chamber according to an embodiment of this application;
[0032] Figure 2 yes Figure 1 Enlarged view of a portion of point A in the middle;
[0033] Figure 3 This is a schematic diagram of a door lock structure according to an embodiment of this application;
[0034] Figure 4 This is a schematic diagram of the door lock structure after the limiting block is hidden according to an embodiment of this application;
[0035] Figure 5 This is a cross-sectional schematic diagram of a door lock structure according to an embodiment of this application;
[0036] Figure 6 yes Figure 5 A magnified view of a portion of point B in the middle.
[0037] Figure label:
[0038] Hinged door 100;
[0039] Bushing 210, first flange 211, spindle 220, second flange 221, first locking nut 230, adapter 240, first washer 250, sealing ring 260, second locking nut 270, first washer 280, second washer 290;
[0040] Limit block 300, card slot 310;
[0041] First handle 400, extension 410, first locking screw 420;
[0042] Second handle 500, second locking screw 510;
[0043] First dust cover 600;
[0044] Second dust cover 700;
[0045] Second gasket 800;
[0046] Third gasket 900. Detailed Implementation
[0047] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.
[0048] In the description of this application, it should be understood that if directional descriptions are involved, such as up, down, front, back, left, right, etc., indicating the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings, it is only for the convenience of describing this application and simplifying the description, and does 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 application.
[0049] In the description of this application, if words such as several, greater than, less than, exceeding, above, below, or within appear, "several" means one or more, "more than" means two or more, "greater than," "less than," "exceeding," etc. are understood to exclude the number itself, and "above," "below," "within," etc. are understood to include the number itself.
[0050] In the description of this application, the use of terms such as "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.
[0051] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.
[0052] Reference Figures 1 to 6 According to an embodiment of this application, a door lock structure is used for an arc-shaped swing door 100. The door lock structure includes a connecting component, a first handle 400, and a second handle 500.
[0053] Specifically, the connecting component is used to pass through the preset mounting hole on the swing door 100. The connecting component has at least one adapter 240 for supporting the arc-shaped surface of the swing door 100. The adapter 240 is configured to adapt to the arc-shaped surface of the swing door 100. The first handle 400 is fixedly disposed at one end of the connecting component, and the second handle 500 is fixedly disposed at the other end of the connecting component. The first handle 400 and the second handle 500 are linked together through the connecting component.
[0054] During installation, the first handle 400 is located on one side of the swing door 100, and the second handle 500 is located on the other side of the swing door 100. Specifically, the connecting assembly has at least one adapter 240 for abutting against the arc-shaped surface of the swing door 100. The adapter 240 is configured to adapt to the arc-shaped surface of the swing door 100, thereby enabling the proposed door lock structure to better adapt to the arc-shaped swing door 100.
[0055] Reference Figures 1 to 4 In some embodiments, the first handle 400 is provided with an extension 410, and the door lock structure also includes a limiting block 300 with a slot 310. The first handle 400 can rotate until the extension 410 is engaged in the slot 310. When the swing door 100 is closed, rotating the first handle 400 until the extension 410 is engaged in the slot 310 locks the swing door 100 in the closed state. Force can be applied directly to one side of the swing door 100 to drive the first handle 400 to rotate, thereby achieving the locking / unlocking action. Alternatively, force can be applied to the second handle 500 on the other side of the swing door 100 to drive the second handle 500 to rotate, thereby driving the first handle 400 to rotate via the connecting assembly, thus achieving the locking / unlocking action.
[0056] When in use, the limit block 300 can be installed on the product on which the swing door 100 is installed, or it can be installed on the door frame used to fix the swing door 100.
[0057] It should be noted that when installing the limit block 300, the opening of the slot 310 can be set to face upwards or downwards.
[0058] In some embodiments, the swing door 100 is used for the oxygen chamber and can be opened outwards. The first handle 400 is located on the outside of the swing door 100, and the second handle 500 is located on the inside of the swing door 100. In this case, the limiting block 300 with the slot 310 mentioned above needs to be set.
[0059] It should be noted that in some other embodiments, the swing door 100 is used for the oxygen chamber and can be opened outwards. The first handle 400 is located on the inner side of the swing door 100, and the second handle 500 is located on the outer side of the swing door 100. In this case, it is not necessary to set the limiting block 300 with the slot 310 mentioned above. The extension 410 can be used to fix the door frame of the swing door 100 or the inner wall of the oxygen chamber to realize the opening and closing lock function.
[0060] Specifically, the extension 410 is set at an angle to the first handle 400. Of course, the extension 410 can also extend along the length of the first handle 400.
[0061] Reference Figure 5 and Figure 6In some embodiments, the connecting assembly includes a bushing 210 and a spindle 220. The bushing 210 is used to pass through a preset mounting hole on the swing door 100, and the spindle 220 is rotatably passed through the bushing 210. A first handle 400 is fixedly disposed at one end of the spindle 220, a second handle 500 is fixedly disposed at the other end of the spindle 220, and an adapter 240 is sleeved on the bushing 210.
[0062] Reference Figure 5 and Figure 6 In some embodiments, the connecting assembly further includes a locking nut 230. One end of the first bushing 210 has a first flange 211. The first locking nut 230 is fitted onto the bushing 210 and threadedly connected to the bushing 210. During installation, the bushing 210 passes through a pre-set mounting hole on the swing door 100. Tightening the first locking nut 230 threaded to the bushing 210 clamps the swing door 100 between the first locking nut 230 and the first flange 211, thereby fixing the bushing 210 to the swing door 100. At this time, the adapter 240 is located between the first locking nut 230 and the first flange 211 and abuts against the arc-shaped surface of the swing door 100.
[0063] Reference Figure 5 and Figure 6 In some embodiments, the connecting assembly has two adapters 240 for clamping the swing door 100. In this case, one adapter 240 is clamped between the first locking nut 230 and the swing door 100, and the other adapter 240 is clamped between the first flange 211 and the swing door 100.
[0064] In some embodiments, the adapter 240 is an elastic element. Once installed, the adapter 240 is compressed and deformed, thereby conforming to the curved surface of the swing door 100 and providing a seal. This allows the proposed door lock structure to not only adapt well to the curved swing door 100 but also improve the poor sealing performance that often occurs when the door lock structure is applied to a curved swing door 100.
[0065] Specifically, the adapter 240 is made of rubber, but it can also be made of silicone or other elastic materials.
[0066] Reference Figure 6In some embodiments, when the adapter 240 is an elastic element and there are two of them, a first gasket 250 is provided between the first locking nut 230 and the adapter 240 near the first locking nut 230. The first gasket 250 is sleeved on the bushing 210. The first gasket 250 helps to improve the sealing performance of the door lock structure. The first gasket 250 is configured with an arc-shaped surface facing the swing door 100 so that the side of the first gasket 250 facing the swing door 100 can fit the arc-shaped surface of the swing door 100. The adapter 240 near the first locking nut 230 will be squeezed by the first gasket 250 during assembly. Since the side of the first gasket 250 facing the swing door 100 is an arc-shaped surface that fits the swing door 100, the adapter 240 near the first locking nut 230 can fit the arc-shaped surface of the swing door 100 better. This not only helps to improve the fit of the door lock structure to the arc-shaped swing door 100, but also helps to further improve the sealing performance of the door lock structure.
[0067] In some embodiments, when the adapter component 240 is an elastic element and there are two of them, the side of the first flange 211 facing the swing door 100 is configured as an arc-shaped surface so that the side of the first flange 211 facing the swing door 100 can fit the arc-shaped surface of the swing door 100. The adapter component 240 near the first flange 211 will be squeezed by the first flange 211 during assembly. Since the side of the first flange 211 facing the swing door 100 is configured as an arc-shaped surface, the adapter component 240 near the first flange 211 can better fit the arc-shaped surface of the swing door 100. This not only helps to improve the adaptability of the door lock structure to the arc-shaped swing door 100, but also helps to further improve the sealing performance of the door lock structure.
[0068] It should be noted that in some other embodiments, the adapter 240 is a rigid member, and the side of the adapter 240 facing the swing door 100 is configured as an arc-shaped surface so that the side of the adapter 240 facing the swing door 100 can adapt to the arc-shaped surface of the swing door 100.
[0069] Reference Figure 6 In some embodiments, at least one sealing ring 260 is fitted on the spindle 220, which helps to improve the sealing performance of the door lock structure.
[0070] In some embodiments, the mandrel 220 is provided with an annular mounting groove for mounting the sealing ring 260, and the sealing ring 260 is partially embedded in the annular mounting groove. In this way, the axial movement of the sealing ring 260 along the mandrel 220 can be restricted, thereby reducing the assembly difficulty of the sealing ring 260.
[0071] Reference Figure 5 and Figure 6 In some embodiments, the connecting assembly further includes a second locking nut 270, a second flange 221 on the spindle 220, the second locking nut 270 being sleeved on the spindle 220 and threadedly connected to the spindle 220, and a bushing 210 being sandwiched between the second locking nut 270 and the second flange 221. The second locking nut 270 and the second flange 221 can restrict the axial movement of the spindle 220 along the bushing 210, thereby improving the stability and reliability of the door lock structure during operation.
[0072] Reference Figure 6 In some embodiments, a first washer 280 is provided between the second locking nut 270 and the bushing 210. The first washer 280 is sleeved on the spindle 220. The first washer 280 can disperse the pressure between the end faces of the second locking nut 270 and the bushing 210 to prevent stress concentration, and at the same time, it is also beneficial to improve the sealing performance of the door lock structure.
[0073] Reference Figure 6 In some embodiments, a second washer 290 is provided between the second flange 221 and the bushing 210. The second washer 290 is sleeved on the spindle 220. The second washer 290 can disperse the pressure between the end faces of the second flange 221 and the bushing 210 to prevent stress concentration, and at the same time, it is beneficial to improve the sealing performance of the door lock structure.
[0074] Reference Figures 2 to 6 In some embodiments, the door lock structure further includes a first dust cover 600 and a second dust cover 700 fitted over the connecting components. The first dust cover 600 is sandwiched between the first handle 400 and the swing door 100, and the second dust cover 700 is sandwiched between the second handle 500 and the swing door 100. The first dust cover 600 and the second dust cover 700 not only provide dust protection for the connecting components but also serve a decorative purpose.
[0075] Reference Figure 6 In some embodiments, a second gasket 800 is provided between the first handle 400 and the first dust cover 600. The second gasket 800 helps to enhance the dustproof effect of the first dust cover 600 and also helps to improve the sealing of the door lock structure.
[0076] Reference Figure 6 In some embodiments, a third gasket 900 is provided between the second handle 500 and the second dust cover 700. The third gasket 900 helps to enhance the dustproof effect of the second dust cover 700 and also helps to improve the sealing of the door lock structure.
[0077] Reference Figure 5 and Figure 6In some embodiments, a first locking screw 420 threadedly connected to the spindle 220 is provided on the first handle 400. The first handle 400 is partially sandwiched between the end of the spindle 220 and the head of the first locking screw 420. The first handle 400 is fixedly connected to the spindle 220 by the first locking screw 420 so that the first handle 400 can rotate synchronously with the spindle 220.
[0078] Reference Figure 5 and Figure 6 In some embodiments, a second locking screw 510 threadedly connected to the spindle 220 is provided on the second handle 500. The second handle 500 is partially sandwiched between the end of the spindle 220 and the head of the second locking screw 510. The second handle 500 is fixedly connected to the spindle 220 by the second locking screw 510 so that the second handle 500 can rotate synchronously with the spindle 220.
[0079] It should be noted that in some other embodiments, the first handle 400 and the second handle 500 can also be fixedly connected to the spindle 220 by a snap-fit structure.
[0080] Reference Figure 2 and Figure 3 In some embodiments, the slot 310 has an opening for engaging the extension 410, and the opening of the slot 310 for engaging the extension 410 is flared so that the extension 410 can be engaged into the slot 310.
[0081] Reference Figures 1 to 6 The swing door 100 according to an embodiment of this application includes an arc-shaped door body and the door lock structure described above.
[0082] It should be noted that since the swing door 100 of the embodiments of this application includes the above-described door lock structure, the swing door 100 of the embodiments of this application includes all the technical effects of the above-described door lock structure.
[0083] Reference Figure 1 and Figure 2 The oxygen chamber according to an embodiment of this application includes an arc-shaped swing door 100 and the aforementioned door lock structure.
[0084] It should be noted that since the oxygen chamber in the embodiments of this application includes the aforementioned door lock structure, the oxygen chamber in the embodiments of this application includes all the technical effects of the aforementioned door lock structure.
[0085] In the description of this specification, the use of terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," and "some examples" indicates that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0086] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.
Claims
1. A door lock structure, characterized in that, For a curved swing door, the door lock structure includes: A connecting component is provided for passing through a pre-set mounting hole on the swing door. The connecting component has at least one adapter component for abutting against the arc-shaped surface of the swing door. The adapter component is configured to adapt to the arc-shaped surface of the swing door. The first handle is fixedly installed at one end of the connecting component; The second handle is fixedly installed at the other end of the connecting component, and the first handle and the second handle are linked together through the connecting component.
2. The door lock structure as described in claim 1, characterized in that, The first handle is provided with an extension, and the door lock structure also includes a limiting block with a slot, so that the first handle can be rotated until the extension is engaged in the slot.
3. The door lock structure as described in claim 1, characterized in that, The connecting assembly includes a bushing and a spindle. The bushing is used to pass through a preset mounting hole on the swing door. The spindle is rotatably passed through the bushing. The first handle is fixedly disposed at one end of the spindle, the second handle is fixedly disposed at the other end of the spindle, and the adapter is sleeved on the bushing.
4. The door lock structure as described in claim 3, characterized in that, The connecting assembly further includes a first locking nut, one end of the bushing has a first flange, and the first locking nut is sleeved on the bushing and threadedly connected to the bushing.
5. The door lock structure as described in claim 4, characterized in that, The connecting assembly has two adapter components for clamping the swing door.
6. The door lock structure as described in claim 4, characterized in that, The adapter is an elastic element.
7. The door lock structure as described in claim 6, characterized in that, A first washer is provided between the first locking nut and the adapter component near the first locking nut. The first washer is sleeved on the bushing. The side of the first washer facing the swing door is configured as an arc-shaped surface so that the side of the first washer facing the swing door can adapt to the arc-shaped surface of the swing door.
8. The door lock structure as described in claim 6, characterized in that, The side of the first flange facing the swing door is configured as an arc-shaped surface so that the side of the first flange facing the swing door can adapt to the arc-shaped surface of the swing door.
9. The door lock structure as described in any one of claims 1 to 5, characterized in that, The adapter is a rigid component, and the side of the adapter facing the swing door is configured as an arc-shaped surface so that the side of the adapter facing the swing door can adapt to the arc-shaped surface of the swing door.
10. The door lock structure as described in claim 3, characterized in that, At least one sealing ring is fitted onto the mandrel.
11. The door lock structure as described in claim 10, characterized in that, The mandrel is provided with an annular mounting groove for installing the sealing ring, and the sealing ring is partially embedded in the annular mounting groove.
12. The door lock structure as described in any one of claims 4 to 8, characterized in that, The connecting assembly further includes a second locking nut, the mandrel has a second flange, the second locking nut is sleeved on the mandrel and threadedly connected to the mandrel, and the bushing is sandwiched between the second locking nut and the second flange.
13. The door lock structure as described in claim 12, characterized in that, The door lock structure also includes a first dust cover and a second dust cover sleeved outside the connecting assembly. The first dust cover is used to be sandwiched between the first handle and the swing door, and the second dust cover is used to be sandwiched between the second handle and the swing door.
14. The door lock structure as described in any one of claims 3 to 8, characterized in that, The first handle is threaded with a first locking screw connected to the mandrel, and the first handle portion is clamped between the end of the mandrel and the head of the first locking screw; and / or, The second handle is threaded with a second locking screw connected to the spindle, and the second handle portion is clamped between the end of the spindle and the head of the second locking screw.
15. The door lock structure as described in claim 2, characterized in that, The slot has an opening for engaging the extension, and the opening is flared.
16. A hinged door, characterized in that, It includes an arc-shaped door body and a door lock structure as described in any one of claims 1 to 15.
17. An oxygen chamber, characterized in that, This includes an arc-shaped swing door and a door lock structure as described in any one of claims 1 to 15.