Portable hyperbaric oxygen chamber door locking structure

Abstract

The utility model relates to a portable hyperbaric oxygen chamber door locking structure which comprises a chamber body, a chamber door installed on the chamber body through a hinge and a door locking assembly arranged between the chamber body and the chamber door, and the door locking assembly comprises a clamping piece fixed to a chamber body door frame and a door locking piece rotationally installed on the chamber door; the door locking piece comprises a rotating shaft rotationally installed on the cabin door and a pressing rod arranged on the inner side of the cabin door. The pressing rod is fixed to the rotating shaft and rotates along with the rotating shaft. The clamping piece is located on the rotating track of the end of the pressing rod. A rolling piece is rotationally mounted at the end part of the pressing rod; a rotating shaft of the rolling piece is arranged along the length direction of the pressing rod; and when the clamping piece coincides with the end position of the pressing rod, the rolling piece is clamped on the clamping piece. In the door opening and closing process, the rolling piece is clamped with the clamping piece or separated from the clamping piece, and the interaction force between the rolling piece and the clamping piece in the process is rolling friction force, so that the force needed by door opening and closing is small, door opening and closing are easier, and user operation is facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hyperbaric oxygen chambers, in particular to a portable hyperbaric oxygen chamber door locking structure. BACKGROUND

[0002] Hyperbaric oxygen therapy refers to a treatment method of breathing pure oxygen or high-concentration oxygen in a high-pressure environment to treat hypoxic diseases and related conditions. Hyperbaric oxygen therapy has good effects on hypoxia, ischemic diseases, or a series of diseases caused by hypoxia and ischemia, as well as certain infectious diseases and autoimmune diseases. Hyperbaric oxygen therapy needs to be performed in an environment with a pressure higher than the ambient pressure, and therefore, a device that can provide high pressure is needed for hyperbaric oxygen therapy, which is called a hyperbaric oxygen chamber.

[0003] At present, the chamber body of the hyperbaric oxygen chamber is equipped with a door that is rotatably installed for people to enter and exit the hyperbaric oxygen chamber. A sealing ring is usually arranged on the opening of the chamber body or the door to ensure the sealing performance. Generally, the hyperbaric oxygen chamber is pressurized to 2-3 atmospheres. At this time, the pressure in the chamber is high, and therefore, the connection strength of the chamber body and the door needs to be ensured to ensure good sealing performance.

[0004] In the related art, the door hinge is installed on the door frame of the chamber body and opens outward. In order to ensure the connection strength between the door and the chamber body, a rotatable fixing rod is usually arranged on the inner side of the door, and a clamping part is correspondingly arranged on the inner side of the door frame. After the door is closed, the fixing rod is rotated to clamp the end of the fixing rod on the clamping part of the door frame, so as to clamp the door and the door frame.

[0005] In view of the above-mentioned related art, in order to ensure the sealing performance, the door needs to be tightly abutted with the door frame when the hyperbaric oxygen chamber is designed. Therefore, the fixing rod and the clamping part are tightly matched. When the door is opened and closed, a large force is needed to open and close the door, and the operation is relatively inconvenient. Therefore, a new scheme is needed to solve the above-mentioned problems. CONTENT OF THE UTILITY MODEL

[0006] In order to solve the above-mentioned problems, the present application provides a portable hyperbaric oxygen chamber door locking structure.

[0007] The present application provides a portable hyperbaric oxygen chamber door locking structure, which adopts the following technical scheme:

[0008] The present application provides a portable hyperbaric oxygen chamber door locking structure, which adopts the following technical scheme: A portable hyperbaric oxygen chamber door locking structure includes a chamber body, a door rotatably installed on the chamber body, and a door locking assembly arranged between the chamber body and the door. The door locking assembly includes a clamping part fixed on the door frame of the chamber body and a door locking part rotatably installed on the door. The door locking part includes a rotating shaft rotatably installed on the door and a pressing rod arranged on the inner side of the door. The pressing rod is fixed on the rotating shaft and rotates with the rotating shaft. The clamping part is located on the rotating track of the end of the pressing rod.

[0009] The end of the pressing rod is rotatably installed with a rolling element, and the rotation axis of the rolling element is arranged along the length direction of the pressing rod; when the clamping element is coincident with the end of the pressing rod, the rolling element is clamped on the clamping element.

[0010] By using the above technical scheme, when the cabin door is closed, the pressing rod is rotated, and when the rolling element is in contact with the clamping element, the pressing rod is rotated to drive the rolling element to roll on the abutting surface of the clamping element, the rolling frictional resistance is small, and the closing resistance of the cabin door can be effectively reduced; when the cabin door is opened, the rolling element is separated from the clamping element, and then the cabin door can be opened by pushing from the inside. During the opening and closing of the door, the interaction force between the rolling element and the clamping element is the rolling frictional force, so that the force required for opening and closing the door is small, the door is easier to open and close, and the user operation is convenient.

[0011] Preferably, the clamping element comprises an abutting plate abutting against the rolling element and a limiting plate limiting the rotation range of the end of the pressing rod, and the abutting plate and the limiting plate are fixedly installed on the inner wall of the cabin body; the abutting plate is arc-shaped and the convex surface thereof faces the cabin body, and the farthest end of the distance between the convex surface of the abutting plate and the door frame of the cabin body is located in the middle of the abutting plate; the end of the abutting plate close to the cooperating pressing rod is in contact with the door frame of the cabin body, the rolling element is in abutting cooperation with the other end of the limiting plate, and the limiting plate is arranged at the other end of the abutting plate.

[0012] By using the above technical scheme, the abutting plate is arc-shaped, the farthest end of the distance between the convex surface of the abutting plate and the door frame of the cabin body is located in the middle of the abutting plate, during the rotation of the pressing rod to lock the door, the rolling element rolls on the surface of the abutting plate from the end of the abutting plate in contact with the door frame, the arc-shaped profile of the abutting plate plays a good transition role, and the rotation resistance of the pressing rod is reduced; after the rolling element passes the farthest end in the middle of the abutting plate, the rolling element will quickly roll along the abutting plate and continue to roll until the rolling element abuts against the limiting plate and stops moving, at this time, the farthest end in the middle of the abutting plate limits the rolling element; when the cabin door is opened, the rolling element can quickly separate from the abutting plate under the reaction force of the cabin door and the door frame of the cabin body after the rolling element is forced to pass the middle of the abutting plate, and the opening process is relatively convenient.

[0013] Preferably, the clamping element further comprises a baffle plate having elastic deformation ability, the baffle plate is fixed on the inner wall of the cabin body, and the baffle plate is arranged on the side of the limiting plate away from the abutting plate; the baffle plate, the abutting plate and the limiting plate form a clamping groove capable of clamping the rolling element therebetween.

[0014] By using the above technical scheme, the baffle plate has elastic deformation ability, which is beneficial to the smooth clamping or unclamping of the rolling element into or out of the clamping groove and makes the clamping between the rolling element and the clamping groove more stable; the clamping groove formed between the baffle plate, the abutting plate and the limiting plate can better clamp the rolling element, preventing accidental opening.

[0015] Preferably, the rolling element is a ball bearing fixedly inserted at the end of the pressing rod.

[0016] By adopting the technical scheme, the ball bearing is convenient to purchase and low in cost.

[0017] Preferably, when the rolling member is clamped in the clamping groove, the end of the baffle plate away from the limiting plate abuts against the edge of the rolling member beyond the axis of the rolling member; and the opening size between the baffle plate and the abutting plate is smaller than the diameter of the rolling member.

[0018] By adopting the technical scheme, the end of the baffle plate away from the limiting plate abuts against the edge of the rolling member beyond the axis of the rolling member, and the opening of the clamping groove formed between the baffle plate and the abutting plate is smaller than the diameter of the rolling member, so that the clamping groove structure can well limit the movement of the rolling wheel.

[0019] Preferably, a buffer pad is arranged on the side of the limiting plate close to the abutting plate to block the rolling member and the limiting plate.

[0020] By adopting the technical scheme, the buffer pad plays a buffering role to reduce the interaction force between the rolling member and the limiting plate, effectively reducing the collision damage of the rolling member and the limiting plate, and prolonging the service life of the rolling member and the limiting plate.

[0021] Preferably, the middle part of the pressing rod is fixed with the rotating shaft, and the rolling members are rotatably arranged at both ends of the pressing rod; and two clamping members are arranged, and the two clamping members correspond to the two rolling members and are arranged on both sides of the hatch door of the cabin body.

[0022] By adopting the technical scheme, the clamping cooperation of the two groups of rolling members and clamping members further strengthens the connection strength between the cabin body and the hatch door, and guarantees the sealing property of the cabin body.

[0023] Preferably, when the rolling member and the clamping member abut against each other, the two rolling members and the rotating shaft are located at the same horizontal height.

[0024] By adopting the technical scheme, when the rolling member and the clamping member abut against each other, the two rolling members and the rotating shaft are located at the same horizontal height, that is, the two clamping members and the rotating shaft are located at the same height, which facilitates the determination of the arrangement position of the clamping member for installation, and also makes the rolling member better abut against the clamping member, and the clamping of the rolling member and the clamping member is more stable.

[0025] Preferably, the rotating shaft penetrates through the hatch door, and a rotating handle is arranged outside the hatch door and fixed on the rotating shaft.

[0026] By adopting the technical scheme, the arrangement of the rotating handle facilitates the opening of the door from the outside.

[0027] Preferably, the rotating handle is a long straight rod body, one end of the rotating handle is fixed with the rotating shaft, and the surface of the end of the rotating handle away from the rotating shaft is provided with anti-skid lines.

[0028] By adopting the technical scheme, the lever handle one end of the rod body is fixed with the rotating shaft to form a labor-saving lever structure, and the door opening resistance is reduced; the anti-skid lines are arranged to increase the friction force when holding, and the door opening is more convenient.

[0029] To sum up, the present application has at least one of the following beneficial technical effects:

[0030] 1. The rolling element is arranged on the pressure rod inside the cabin door, and the rolling element and the clamping element arranged inside the cabin door frame are clamped or separated when the cabin door is opened or closed, the interaction force between the rolling element and the clamping element is rolling friction, so that the force required when opening or closing the cabin door is smaller, and the door is easier to open and close, and the user operation is convenient;

[0031] 2. The abutment plate is arranged in an arc shape, and the convex surface is located in the middle of the abutment plate, and the distance between the convex surface and the farthest end of the cabin door frame, so that the rolling element can roll along the abutment plate more easily, so that the rolling element can be clamped into the clamping groove or separated from the clamping groove, and the door opening and closing process is more convenient;

[0032] 3. The pressure rod is symmetrically provided with rolling elements at both ends, and the clamping element is also provided with two corresponding rolling elements; when the cabin door is closed, the two clamping elements are clamped and matched with the two rolling elements respectively, so that the pressure rod is tightly abutted with the door frame, and compared with only one clamping element and rolling element, the connection strength between the cabin door and the cabin is stronger, and the sealing property of the cabin is further ensured. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 is a schematic diagram of the overall structure of the embodiment of the present application;

[0034] Figure 2 is a schematic diagram of the door locking assembly structure inside the cabin of the embodiment of the present application;

[0035] Figure 3 is Figure 2 is an enlarged schematic diagram of part A in

[0036] Fig. 1 is a cabin; 11 is a hinge; 12 is a door frame; 2 is a cabin door; 3 is a door locking assembly; 31 is a clamping element; 311 is an abutment plate; 312 is a limiting plate; 313 is a baffle; 314 is a buffer pad; 32 is a door locking element; 321 is a rotating shaft; 322 is a pressure rod; 323 is a rolling element; 324 is a rotating handle; 325 is an anti-skid line. DETAILED DESCRIPTION

[0037] The following will be described in detail in combination with the accompanying Figures 1-3 The present application will be further described in detail.

[0038] The embodiment of the present application discloses a portable high-pressure oxygen cabin door locking structure.

[0039] Referring toFigure 1 and Figure 2 The portable high-pressure oxygen cabin door locking structure comprises a cabin body 1, a cabin door 2 and a door locking assembly 3 arranged between the cabin body 1 and the cabin door 2; a hinge 11 is fixedly installed on the side of a door frame 12 of the cabin body 1 away from the cabin body 1, the cabin door 2 is installed on the door frame 12 of the cabin body 1 through the hinge 11, and a sealing ring is arranged on the cabin door 2 corresponding to the contour of the door frame 12; the door locking assembly 3 comprises a clamping piece 31 and a door locking piece 32, the clamping piece 31 is fixedly installed on the inner wall of the cabin body 1, and the door locking piece 32 is installed on the cabin door 2.

[0040] The door locking piece 32 comprises a rotating handle 324, a rotating shaft 321 and a pressing rod 322. The rotating shaft 321 penetrates through the cabin door 2 and is rotatably and sealingly installed on the cabin door 2, the rotating handle 324 and the pressing rod 322 are fixedly installed at two ends of the rotating shaft 321 respectively; the rotating handle 324 is arranged on the outer side of the cabin door 2 so as to facilitate opening and closing the cabin door 2 from the outside; the pressing rod 322 is arranged on the inner side of the cabin door 2, plays a role of locking the door and facilitates opening and closing the cabin door 2 from the inside. When the pressing rod 322 is rotated, the rotating shaft 321 is rotated to drive the rotating handle 324 to rotate, and in the same way, the rotating handle 324 is rotated to drive the pressing rod 322 to rotate.

[0041] The rotating handle 324 is a long cylindrical rod body; one end of the rotating handle 324 is fixed with the rotating shaft 321 to form a lever structure, facilitating rotation of the rotating handle 324; the surface of the end of the rotating handle 324 away from the rotating shaft 321 is designed with anti-skid lines; the anti-skid lines are composed of alternately distributed convex parts and concave parts, increasing the friction force when holding, so that the door is more convenient to open.

[0042] Reference Figure 2 and Figure 3 The middle part of the pressing rod 322 is fixed with the rotating shaft 321, and the two ends of the pressing rod 322 are rotatably installed with rolling elements 323 respectively, the rolling elements 323 are ball bearings, and the ball bearings are inserted and fixed at the ends of the pressing rod 322; when the cabin door 2 is closed, the pressing rod 322 is rotated to be horizontal, the ball bearings at the ends of the pressing rod 322 are clamped with the clamping piece 31, and the cabin door 2 and the cabin body 1 are locked. In other embodiments, the rolling elements 323 can also be replaced by rollers. In the process of opening and closing the door, the design of the rolling elements 323 makes the interaction force between the rolling elements 323 and the clamping piece 31 be rolling friction, greatly reducing the force required for opening and closing the door, so that the door is easier to open and close.

[0043] In this embodiment, threads are designed at the two ends of the rotating shaft 321; the pressing rod 322 is fixed on the rotating shaft 321 by clamping the pressing rod 322 through two nuts; and the rotating handle 324 is fixed on the rotating shaft 321 by clamping the rotating handle 324 through a ball head nut and a nut.

[0044] Reference Figure 2 , and Figure 3The two clamping pieces 31 correspond to the two rolling pieces 323 and are arranged on the two sides of the door frame 12 of the cabin body 1. The clamping piece 31 comprises an abutting plate 311, a limiting plate 312, a buffer pad 314 and a baffle 313. In the embodiment, the abutting plate 311, the limiting plate 312 and the baffle 313 are integrally arranged and are formed by bending a whole metal plate. The side walls of the abutting plate 311 and the limiting plate 312 are attached to the inner wall of the cabin body 1 and are welded and fixed on the inner wall of the cabin body 1.

[0045] The abutting plate 311 is fixed on the inner side wall of the cabin body 1. The abutting plate 311 is arc-shaped and the convex surface thereof faces away from the door frame 12. The farthest end of the convex surface of the abutting plate 311 from the door frame 12 is located in the middle of the abutting plate 311. One end of the abutting plate 311 is in contact with the door frame 12 of the cabin body 1, and the other end of the abutting plate 311 away from the door frame 12 of the cabin body 1 is fixedly connected with the limiting plate 312. The arc-shaped profile of the abutting plate 311 plays a good transition role and reduces the rotation resistance of the pressure rod 322. The middle farthest end of the abutting plate 311 produces a limiting effect on the rolling piece 323.

[0046] The limiting plate 312 is horizontally arranged to limit the rotation range of the pressure rod 322. The buffer pad 314 is attached to the limiting plate 312. The buffer pad 314 completely covers the side of the limiting plate 312 close to the rolling piece 323. When the rolling piece 323 is blocked by the limiting plate 312 while moving along the abutting plate 311, the buffer pad 314 plays a buffering role to reduce the interaction force between the rolling piece 323 and the limiting plate 312. In the embodiment, the buffer pad 314 is selected to be a sponge plate.

[0047] One end of the baffle 313 is fixedly connected with the end of the limiting plate 312 away from the abutting plate 311. The side wall of the baffle 313 is not fixed to the inside of the cabin body 1 so that the baffle 313 can be elastically deformed. The abutting plate 311, the limiting plate 312 and the baffle 313 form a clamping groove for clamping the rolling piece 323. The end of the baffle 313 away from the limiting plate 312 is bent towards the door frame 12 of the cabin body 1. The bent end of the baffle 313 abuts against the edge of the rolling piece 323 beyond the axis of the rolling piece 323. The opening of the clamping groove between the baffle 313 and the abutting plate 311 is smaller than the diameter of the rolling piece 323, so that the clamping groove is clamped with the rolling piece 323 and the movement of the rolling piece is better limited. The clamping groove can better clamp the rolling piece 323 and prevent the cabin door 2 from being opened by mistake.

[0048] Since the two rolling pieces 323 at the two ends of the pressure rod 322 are symmetric about the center of the rotation shaft 321, the two clamping pieces 31 provided with the clamping grooves are also symmetric about the center of the rotation shaft 321. When the pressure rod 322 is rotated to be horizontal, the two clamping pieces 31 are clamped with the two rolling pieces 323, respectively. The two ends of the pressure rod 322 are in abutment with the door frame 12, which further enhances the connection strength between the cabin body 1 and the cabin door 2 and guarantees the sealing property of the cabin body 1.

[0049] The working process of the embodiment of the application is as follows:

[0050] When the hatch 2 needs to be closed, the hatch 2 is rotated to abut the sealing ring against the cabin 1, then the rotating handle 324 is rotated or the pressing rod 322 is directly rotated, so that the pressing rod 322 is rotated to be horizontally clamped with the door frame 12; when the pressing rod 322 is about to be rotated to the horizontal state, the rolling part 323 is first pressed against the abutment plate 311 near the end of the door frame 12; since the abutment plate 311 is arc-shaped, as the abutting force between the rolling part 323 and the abutment plate 311 gradually increases, the rolling part 323 rolls along the abutment plate 311; when the rolling part 323 passes the farthest end of the abutment plate 311 from the door frame 12, the rolling part 323 rolls along the abutment plate 311 to the limiting plate 312, the baffle 313 abuts against the edge of the rolling part 323, the rolling part 323 is clamped in the clamping groove, and the closing of the hatch 2 is completed.

[0051] When the hatch 2 needs to be opened, after the pressure in the hyperbaric oxygen cabin is reduced to the normal pressure, the pressing rod 322 is rotated, the rolling part 323 rolls along the surface of the abutment plate 311, the rolling part 323 is released from the clamping groove, and the hatch 2 can be opened by pushing the hatch 2 from inside the cabin.

[0052] In summary, the rolling of the rolling part 323 on the abutment plate 311 realizes the clamping or release of the rolling wheel and the clamping part 31, so as to open and close the hatch 2; during the opening and closing of the hatch, the interaction force between the rolling wheel and the clamping part 31 is the rolling friction, so that the opening and closing of the hatch is easier, and the user operation is facilitated.

[0053] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A portable hyperbaric oxygen chamber door locking structure, comprising a chamber body (1), a door (2) hinged (11) on the chamber body (1), and a door locking assembly (3) disposed between the chamber body (1) and the door (2), characterized in that, The door locking assembly (3) includes a snap-fit ​​component (31) fixed on the door frame (12) of the cabin (1) and a door locking component (32) rotatably mounted on the door (2); the door locking component (32) includes a rotating shaft (321) rotatably mounted on the door (2) and a pressure rod (322) disposed on the inner side of the door (2), the pressure rod (322) being fixed on the rotating shaft (321) and rotating with the rotating shaft (321); the snap-fit ​​component (31) is located on the rotation trajectory of the end of the pressure rod (322); The end of the pressure rod (322) is rotatably mounted with a rolling element (323), and the rotating shaft (321) of the rolling element (323) is arranged along the length direction of the pressure rod (322); when the position of the snap-fit ​​(31) coincides with the end of the pressure rod (322), the rolling element (323) is snapped onto the snap-fit ​​(31).

2. The portable hyperbaric oxygen chamber door locking structure according to claim 1, characterized in that, The snap-fit ​​component (31) includes an abutment plate (311) that abuts against the rolling element (323) and a limiting plate (312) that limits the rotation range of the end of the pressure rod (322). The abutment plate (311) and the limiting plate (312) are fixedly installed on the inner wall of the cabin (1). The abutment plate (311) is arc-shaped with its convex surface facing the cabin. The farthest point of the convex surface of the abutment plate (311) from the door frame (12) of the cabin (1) is located in the middle of the abutment plate (311). One end of the abutment plate (311) close to the matching pressure rod (322) contacts the door frame (12) of the cabin (1). The rolling element (323) abuts against the other end of the limiting plate (312). The limiting plate (312) is located at the other end of the abutment plate (311).

3. The portable hyperbaric oxygen chamber door locking structure according to claim 2, characterized in that, The snap-fit ​​component (31) further includes a baffle (313) with elastic deformation capability. The baffle (313) is fixed on the inner wall of the cabin (1) and is located on the side of the limiting plate (312) away from the abutment plate (311). A snap-fit ​​groove for snapping the rolling component (323) is formed between the baffle (313), the abutment plate (311) and the limiting plate (312).

4. The portable hyperbaric oxygen chamber door locking structure according to claim 3, characterized in that, The rolling element (323) is a ball bearing that is inserted and fixed to the end of the pressure rod (322).

5. The portable hyperbaric oxygen chamber door locking structure according to claim 4, characterized in that, When the rolling element (323) is engaged in the slot, the end of the baffle (313) away from the limiting plate (312) passes over the axis of the rolling element (323) and abuts against the edge of the rolling element (323); the opening size between the baffle (313) and the abutting plate (311) is smaller than the diameter of the rolling element (323).

6. The portable hyperbaric oxygen chamber door locking structure according to claim 5, characterized in that, The limiting plate (312) is provided with a buffer pad (314) on the side near the abutment plate (311) to block the rolling element (323) from the limiting plate (312).

7. The portable hyperbaric oxygen chamber door locking structure according to claim 1, characterized in that, The middle part of the pressure rod (322) is fixed to the rotating shaft (321), and both ends of the pressure rod (322) are rotatably mounted with rolling elements (323); two snap-fit ​​elements (31) are provided, and the two snap-fit ​​elements (31) are respectively provided on both sides of the hatch (2) of the cabin (1).

8. The portable hyperbaric oxygen chamber door locking structure according to claim 7, characterized in that, When the rolling element (323) and the snap-fit ​​element (31) are in close contact, the two rolling elements (323) and the rotating shaft (321) are at the same horizontal height.

9. The portable hyperbaric oxygen chamber door locking structure according to claim 1, characterized in that, The pivot (321) is installed through the hatch (2), and a rotating handle (324) is provided on the outside of the hatch (2). The rotating handle (324) is fixed on the pivot (321).

10. The portable hyperbaric oxygen chamber door locking structure according to claim 9, characterized in that, The rotating handle (324) is a long straight rod. One end of the rotating handle (324) is fixed to the rotating shaft (321), and the surface of the end of the rotating handle (324) away from the rotating shaft (321) is provided with anti-slip texture.

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