An interlocking safety device for an outward-opening door of an oxygen chamber

Abstract

This utility model provides an interlocking safety device for an externally opening door of a hyperbaric oxygen chamber, relating to the field of hyperbaric oxygen chamber technology. The interlocking safety device includes: a lock body having a channel; a magnetic component having an opening, the magnetic component being fixed to one end of the channel; a magnetic drive lock cylinder disposed on one side of the magnetic component, one end of the magnetic drive lock cylinder being disposed within the channel; and a locking component having a through hole, the locking component being connected to the other end of the channel, the movement trajectory of the other end of the magnetic drive lock cylinder extending out of the channel through the through hole. The interlocking safety device is automatic and safe.

Description

Technical Field

[0001] This utility model relates to the field of hyperbaric oxygen chamber technology, specifically to an interlocking safety device for an externally opening door of an oxygen chamber. Background Technology

[0002] Hyperbaric oxygen chambers typically achieve chamber sealing through the combination of an outward-opening door and a door cover flange on the chamber body, along with the internal pressure and sealing rings. However, existing technologies lack a door lock structure for the outward-opening door, making it impossible for users to effectively lock the door when entering or exiting. This often leads to air leakage during the pressurization and inflation phase. Furthermore, directly drilling through holes to install a door lock at the door cover flange can also easily affect the overall airtightness of the chamber. Utility Model Content

[0003] The purpose of this invention is to overcome the defects of the prior art and provide an interlocking safety device for an externally opening door of an oxygen chamber, which has the function of automatically locking when pressurized and automatically unlocking when depressurized.

[0004] To achieve the above and other objectives, this utility model is implemented through the following technical solution: This utility model provides an interlocking safety device for an outward-opening door of an oxygen chamber, the interlocking safety device for the outward-opening door of the oxygen chamber comprising:

[0005] The lock body has a channel;

[0006] A magnetic component having an opening, the magnetic component being fixed to one end of the channel;

[0007] A magnetic drive lock cylinder is disposed on one side of the magnetic component, and one end of the magnetic drive lock cylinder is disposed within the channel;

[0008] And a locking element having a through hole, the locking element being connected to the other end of the channel, the movement trajectory of the other end of the magnetic drive lock cylinder extending out of the channel through the through hole.

[0009] In one embodiment, the magnetic drive lock cylinder has a first end and a second end connected to the first end, the first end being slidably connected to the channel, and the second end being slidably connected to the through hole.

[0010] In one embodiment, the locking member has a cavity communicating with the channel.

[0011] In one embodiment, the lock body has a first lock body and a second lock body connected to the first lock body, and the channel includes a first channel and a second channel, wherein the first channel passes through one side wall of the first lock body and the second lock body and communicates with the second channel.

[0012] In one embodiment, the first channel is a constant-diameter channel, and the second channel is a variable-diameter channel.

[0013] In one embodiment, the second channel has a first stepped surface and a second stepped surface with successively increasing diameters, the first stepped surface being close to the first channel.

[0014] In one embodiment, the outer wall of the first lock body has a first thread.

[0015] In one embodiment, one side of the locking member abuts against the second step surface.

[0016] In one embodiment, the interlocking safety device includes a first sealing ring and a second sealing ring, the first sealing ring being sleeved on the second end, and the second sealing ring being sleeved around the locking member.

[0017] In one embodiment, the channel has a second thread, and the outer wall of the locking member has a third thread that matches the second thread.

[0018] This utility model provides an interlocking safety device for an externally opening door of an oxygen chamber. Compared with the prior art, this utility model has the following advantages: by synchronously controlling the automatic locking and unlocking of the door during the pressurization and depressurization process inside the oxygen chamber, the use of the oxygen chamber is made safer, and the air leakage problem at the beginning of pressurization is avoided, thus improving the efficiency of oxygen chamber pressurization. Attached Figure Description

[0019] Figure 1 The diagram shown is a structural schematic of the interlocking safety device of this utility model.

[0020] Figure 2 The diagram shown is an exploded view of the interlocking safety device of this utility model.

[0021] Figure 3 The image shown is a cross-sectional view of the lock body of this utility model.

[0022] Figure 4 The diagram shown is a structural schematic of the lock body of this utility model.

[0023] Figure 5 The image shown is a cross-sectional view of the interlocking safety device of this utility model.

[0024] Figure 6 The diagram shown is a cross-sectional view of the installation position of the interlocking safety device of this utility model.

[0025] The diagram is labeled as follows: 100-Interlocking safety device, 1-Lock body, 11-First lock body, 12-Second lock body, 11a-First channel, 11b-First thread, 12a-Second channel, 12b-First step surface, 12c-Second step surface, 12d-Second thread, 2-Magnetic component, 21-Opening, 3-Magnetic drive lock cylinder, 31-First end, 32-Second end, 33-Cavity, 4-Locking component, 41-Third thread, 42-Through hole, 5-First sealing ring, 6-Second sealing ring, 200-Hatch body, 201-Door cover flange, 300-Hatch door, 301-Reserved hole. Detailed Implementation

[0026] Please see Figures 1 to 6 The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0027] like Figure 1 and Figure 2 As shown, this utility model provides an interlocking safety device 100 for an externally opening door of an oxygen chamber. The interlocking safety device 100 includes a lock body 1, which includes a first lock body 11 and a second lock body 12 connected together.

[0028] like Figure 3 As shown, the lock body 1 has a channel, which includes a first channel 11a and a second channel 12a that are connected. The first channel 11a passes through one side wall of the first lock body 11 and the second lock body 12 and is connected to the second channel 12a. The second channel 12a is located inside the second lock body 12. The cross-section of the lock body 1 can be L-shaped.

[0029] like Figure 3 As shown, the diameter of the first channel 11a can be constant, while the second channel 12a is a variable diameter channel with multiple steps.

[0030] like Figure 3 As shown, the outer side wall of the first lock body 11 has a first thread 11b, and the inner side wall of the second channel 12a at the end away from the first channel 11a has a second thread 12d.

[0031] like Figure 4As shown, the second channel 12a includes a first step surface 12b and a second step surface 12c with gradually increasing diameters. The first step surface 12b is located on the side close to the first channel 11a, and the second thread 12d is located on the side of the second step surface 12c.

[0032] like Figure 2 and Figure 5 As shown, the interlocking safety device 100 includes a magnetic component 2 with an opening 21. For example, it can be a ring magnet. The magnetic component 2 is located within the second channel 12a and is specifically fixed to the first stepped surface 12b. The magnetic component 2 can be a neodymium iron boron magnet, such as an N35 magnet.

[0033] like Figure 2 and Figure 5 As shown, the interlocking safety device 100 includes a magnetic drive lock core 3. The magnetic drive lock core 3 can be made of a magnetic metal material, such as Q235 carbon steel. One end of the magnetic drive lock core 3 is disposed in the second channel 12a and can slide between the second step surface 12c and the magnetic component 2. The other end of the magnetic drive lock core 3 can extend out of the second channel 12a. Specifically, the movement trajectory of the other end of the magnetic drive lock core 3 can extend out of the second channel 12a through the through hole 42. The magnetic drive lock core 3 has a cavity 33 communicating with the second channel 12a. The magnetic drive lock core 3 has a first end 31 and a second end 32. The diameter of the first end 31 is larger than the diameter of the second end 32. The first end 31 is slidably connected to the inner wall of the second channel 12a. The internal pressure of this utility model can be 1.3 atmospheres. When the internal pressure is increased, this pressure can overcome the magnetic force of the N35 magnet and push out the magnetic drive lock core 3. The cavity 33 of the magnetic drive lock core 3 allows pressurized gas to enter and push out the magnetic drive lock core 3 more effectively.

[0034] like Figure 2 and Figure 5 As shown, the interlocking safety device 100 includes a locking member 4, which is disposed in the second channel 12a, for example, threadedly connected to the second channel 12a. The outer side wall of the locking member 4 has a third thread 41 that matches the second thread 12d. The locking member 4 can be a locking nut. One side of the locking member 4 abuts against the second stepped surface 12c. The locking member 4 restricts the first end 31 of the magnetic drive lock core 3 within the second channel 12a. The locking member 4 has a through hole 42, through which the second end 32 of the magnetic drive lock core 3 can pass.

[0035] Specifically, the length of the magnetic drive lock core 3 can be less than or equal to the distance between the magnetic component 2 and the opening of the second channel 12a, so that when the magnetic drive lock core 3 is pulled back by the magnetic component 2, the second end 32 can be completely retracted into the second channel 12a.

[0036] like Figure 2 and Figure 5 As shown, the interlocking safety device 100 includes a first sealing ring 5, which is disposed between the magnetic drive lock core 3 and the locking member 4. Specifically, the first sealing ring 5 can be sleeved on the second end 32 of the magnetic drive lock core 3.

[0037] like Figure 2 and Figure 5 As shown, the interlocking safety device 100 includes a second sealing ring 6, which is located between the lock body 1 and the locking member 4. For example, the second sealing ring 6 can be sleeved around the locking member 4.

[0038] like Figure 6 As shown, when this utility model is in operation, the interlocking safety device 100 can be embedded in the door flange 201 of the cabin 200. This avoids the need for traditional locks to directly drill through the door flange 201, thus enhancing the airtightness of the oxygen chamber. The first channel 11a communicates with the interior of the oxygen chamber. After the oxygen chamber is pressurized, the pressurized gas enters the cavity 33 of the magnetic drive lock core 3 through the first channel 11a and the second channel 12a, pushing the magnetic drive lock core 3 out and inserting it into the reserved hole 301 on the cabin door 300 to lock the cabin door 300. When the cabin begins to depressurize and the gas pressure disappears, the magnetic component 2 uses magnetic force to pull back the magnetic drive lock core 3, thereby achieving the purpose of retracting the magnetic drive lock core 3 and realizing automatic unlocking.

[0039] Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value. The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit this utility model. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. An interlock safety device for opening the door of an oxygen cabin, characterized in that: The interlocking safety device includes: The lock body has a channel; A magnetic component having an opening, the magnetic component being fixed to one end of the channel; A magnetic drive lock cylinder is disposed on one side of the magnetic component, and one end of the magnetic drive lock cylinder is disposed within the channel; And a locking element having a through hole, the locking element being connected to the other end of the channel, the movement trajectory of the other end of the magnetic drive lock cylinder extending out of the channel through the through hole.

2. An interlock safety device according to claim 1, characterised in that: The magnetic drive lock cylinder has a first end and a second end connected to the first end. The first end is slidably connected to the channel, and the second end is slidably connected to the through hole.

3. The interlock safety device of claim 1, wherein: The locking element has a cavity that communicates with the channel.

4. The interlock safety device of claim 1, wherein: The lock body has a first lock body and a second lock body connected to the first lock body. The channel includes a first channel and a second channel. The first channel passes through one side wall of the first lock body and the second lock body and communicates with the second channel.

5. An interlock safety device according to claim 4, characterised in that: The first channel is a constant diameter channel, and the second channel is a variable diameter channel.

6. The interlock safety device of claim 4, wherein: The second channel has a first step surface and a second step surface with successively increasing diameters, and the first step surface is close to the first channel.

7. The interlock safety device of claim 4, wherein: The outer wall of the first lock body has a first thread.

8. The interlock safety device of claim 6, wherein: One side of the locking member is abutted against the second step surface.

9. The interlock safety device of claim 2, wherein: The interlocking safety device includes a first sealing ring and a second sealing ring. The first sealing ring is sleeved on the second end, and the second sealing ring is sleeved around the locking member.

10. The interlock safety device of claim 1, wherein: The channel has a second thread, and the outer wall of the locking member has a third thread that matches the second thread.

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