Folding type negative pressure isolation cabin

Abstract

The folding type negative pressure isolation cabin comprises a frame cabin body and a telescopic frame, the frame cabin body comprises a fixed frame and a telescopic frame, the fixed frame comprises a first X-shaped supporting frame located at the left end and fixing rods fixed to the ends of the first X-shaped supporting frame, the four fixing rods are transversely arranged in parallel, two fixing rods are located at the bottom, and the other two fixing rods are located at the top; the telescopic frame comprises a second X-shaped supporting frame located at the right end and telescopic rods fixed to the ends of the second X-shaped supporting frame, the four telescopic rods are transversely arranged in parallel and correspond to the fixing rods one to one, two telescopic rods are located at the bottom, and the other two telescopic rods are located at the top; the frame cabin further comprises automatic telescopic mechanisms corresponding to the fixing rods, the left ends of the automatic telescopic mechanisms are installed in the left ends of the corresponding fixing rods, the right ends of the automatic telescopic mechanisms are fixed to the interiors of the corresponding telescopic rods, and the telescopic rods are automatically and rapidly unfolded rightwards and automatically and rapidly retracted leftwards under the action of the automatic telescopic mechanisms.

Description

Technical Field

[0001] This utility model relates to the field of negative pressure isolation chamber technology, and in particular to a foldable negative pressure isolation chamber. Background Technology

[0002] A negative pressure isolation chamber is a special device used for transporting patients with infectious diseases. Its main purpose is to isolate patients during transport, prevent the spread of pathogens, and thus protect medical staff and the surrounding environment from infection. The working principle of a negative pressure isolation chamber is to use a negative pressure exhaust and purification device to make the air pressure inside the chamber lower than the external environment, thereby ensuring that air can only flow in from the outside and cannot flow out from the inside, preventing air leakage from the chamber.

[0003] During patient transfer in negative pressure isolation chambers, sufficient internal space is required, resulting in large chamber volumes and wasted ship space when the equipment is idle. To address this issue, two types of chambers have emerged: modular and inflatable. Modular negative pressure isolation chambers lead to high personnel learning costs and long processing times, thus increasing the risk of infection. Inflatable negative pressure isolation chambers are prone to airway leaks, rendering the equipment unusable. Therefore, this invention designs a mechanically and electrically controlled folding negative pressure chamber that automatically and quickly unfolds and retracts, improving space utilization. Utility Model Content

[0004] This invention addresses the problems and shortcomings of existing technologies by providing a foldable negative pressure isolation chamber.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] This utility model provides a foldable negative pressure isolation chamber, including a frame chamber body, characterized in that the frame chamber body includes a fixed frame and a telescopic frame, the fixed frame includes a first X-shaped support frame located at the left end and a fixing rod fixed at each end of the first X-shaped support frame, the four fixing rods are arranged horizontally in parallel, and two of the fixing rods are located at the bottom and the other two are located at the top;

[0007] The telescopic frame includes a second X-shaped support frame located at the right end and telescopic rods fixed at each end of the second X-shaped support frame. The four telescopic rods are arranged horizontally in parallel and correspond one-to-one with the fixed rods. Two of the telescopic rods are located at the bottom and the other two are located at the top.

[0008] The frame cabin also includes an automatic telescopic mechanism corresponding to the fixed rod. The left end of the automatic telescopic mechanism is installed inside the left end of the corresponding fixed rod, and the right end of the automatic telescopic mechanism is fixed to the inside of the corresponding telescopic rod. Under the action of the automatic telescopic mechanism, the telescopic rod automatically and quickly extends to the right and automatically and quickly retracts to the left.

[0009] The positive and progressive effects of this utility model are as follows:

[0010] The foldable negative pressure isolation chamber designed in this utility model can increase the space utilization of ships. It can be deployed and retracted through electronic control, which changes the traditional assembly method, greatly reduces the assembly and recovery time, and at the same time reduces the manpower requirements and learning costs. It can be used immediately after opening and closed immediately, thus improving work efficiency. Attached Figure Description

[0011] Figure 1 This is a structural schematic diagram of the frame cabin of a preferred embodiment of the present invention.

[0012] Figure 2 This is a cross-sectional view of the automatic telescopic mechanism of a preferred embodiment of the present invention.

[0013] Figure 3-7 This is a schematic diagram of the structure of the automatic telescopic mechanism of a preferred embodiment of the present invention.

[0014] Among them, 100 is a fixed frame; 101 is a first fixed ring; 102 is a first X-shaped support frame; 103 is a fixed rod; 104 is a first guide ring; and 105 is a first arc-shaped support rod.

[0015] 200. Telescopic frame; 201. Second fixing ring; 202. Second X-shaped support frame; 203. First telescopic rod; 204. Second telescopic rod; 205. Third telescopic rod; 206. Second guide ring; 207. Second arc-shaped support rod; 208. Third guide ring; 209. Third arc-shaped support rod;

[0016] 300. Automatic telescopic mechanism; 301. Motor mounting bracket; 302. Motor; 303. Flange; 304. Fixing pipe; 305. Coupling; 306. Lead screw; 307. Nut; 308. First-stage telescopic pipe; 309. First-stage movable pulley; 310. First-stage fixing pin; 311. First-stage rope; 312. Second-stage telescopic pipe; 313. Second-stage movable pulley; 314. Second-stage fixing pin; 315. Second-stage rope; 316. Third-stage telescopic pipe; 317. First-stage tension spring left fixing pin; 318. First-stage tension spring right fixing pin; 319. First-stage tension spring; 320. Second-stage tension spring left fixing pin; 321. Second-stage tension spring right fixing pin; 322. Second-stage tension spring. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] For ease of description, only the parts relevant to this utility model are shown in the accompanying drawings. The terms "first," "second," etc., used in this utility model are merely for the convenience of describing the technical solution and do not have a specific limiting effect; they are all general terms and do not constitute a limitation on the technical solution of this utility model. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Terms indicating positional relationships, such as "middle," "horizontal," "vertical," "longitudinal," "front," "rear," "left," "right," "inner," and "outer," are based on the positional relationships shown in the accompanying drawings and do not imply that the components referred to must be presented in the described positional relationships; they do not constitute a limitation on the technical solution of this utility model.

[0019] like Figure 1-7 As shown, this embodiment provides a foldable negative pressure isolation chamber, including a frame chamber body. The frame chamber body includes a fixed frame 100 and a telescopic frame 200. The fixed frame 100 includes a first fixing ring 101 located at the left end, a first X-shaped support frame 102, and fixing rods 103 fixed at each end of the first X-shaped support frame 102. Four first inclined support rods are fixed on the first fixing ring 101. The four first inclined support rods constitute the first X-shaped support frame 102. The four fixing rods 103 are arranged horizontally and parallel to each other, with two fixing rods 103 located at the bottom and the other two fixing rods 103 located at the top.

[0020] The telescopic frame 200 includes a second fixed ring 201 located at the right end, a second X-shaped support frame 202, and telescopic rods fixed at each end of the second X-shaped support frame 202. Four second inclined support rods are fixed on the second fixed ring 201. The four second inclined support rods constitute the second X-shaped support frame 202. The four telescopic rods are arranged horizontally in parallel and correspond one-to-one with the fixed rods 103. Two of the telescopic rods are located at the bottom and the other two are located at the top.

[0021] Each telescopic rod includes a first telescopic rod 203, a second telescopic rod 204, and a third telescopic rod 205 distributed from left to right. The left end of the first telescopic rod 203 extends into the fixed rod 103, and the fixed rod 103 limits the left end of the first telescopic rod 203 to prevent it from falling off the right end of the fixed rod 103. The left end of the second telescopic rod 204 extends into the first telescopic rod 203, and the first telescopic rod 203 limits the left end of the second telescopic rod 204 to prevent it from falling off the right end of the first telescopic rod 203. The left end of the third telescopic rod 205 extends into the second telescopic rod 204, and the second telescopic rod 204 limits the left end of the third telescopic rod 205 to prevent it from falling off the right end of the second telescopic rod 204. The length of the fixed rod 103 is longer than the length of the first telescopic rod 203, the second telescopic rod 204, and the third telescopic rod 205.

[0022] Each fixed rod 103 has a first guide ring 104 fixed to the outer surface of its right end, and a first arc-shaped support rod 105 fixed to each of the four first guide rings 104; each first telescopic rod 203 has a second guide ring 206 fixed to the outer surface of its right end, and a second arc-shaped support rod 207 fixed to each of the four second guide rings 206; each second telescopic rod 204 has a third guide ring 208 fixed to the outer surface of its right end, and a third arc-shaped support rod 209 fixed to each of the four third guide rings 208.

[0023] The frame cabin also includes an automatic telescopic mechanism 300 corresponding to the fixed rod 103. The left end of the automatic telescopic mechanism 300 is installed inside the left end of the corresponding fixed rod 103. The right end of the automatic telescopic mechanism 300 passes through the interior of the corresponding first telescopic rod 203 and the second telescopic rod 204 in sequence and is fixed to the interior of the left end of the corresponding third telescopic rod 205. Under the action of the automatic telescopic mechanism 300, the third telescopic rod 205, the second telescopic rod 204 and the first telescopic rod 203 automatically and quickly extend to the right and automatically and quickly retract to the left.

[0024] Specifically, the automatic telescopic mechanism 300 includes a motor mounting base 301, a motor 302, a flange 303, a fixing tube 304, a coupling 305, a lead screw 306, a nut 307, a first-stage telescopic tube 308, a first-stage movable pulley 309, a first-stage fixing pin 310, a first-stage rope 311, a second-stage telescopic tube 312, a second-stage movable pulley 313, a second-stage fixing pin 314, a second-stage rope 315, a third-stage telescopic tube 316, a first-stage tension spring left fixing pin 317, a first-stage tension spring right fixing pin 318, a first-stage tension spring 319, a second-stage tension spring left fixing pin 320, a second-stage tension spring right fixing pin 321, and a second-stage tension spring 322.

[0025] The motor mounting base 301 is fixed inside the left end of the corresponding fixing rod 103. The motor 302 is fixed inside the motor mounting base 301. A flange 303 is also fixed inside the motor mounting base 301, and the flange 303 is arranged around the output shaft of the motor 302. The left end of the fixing tube 304 is placed inside the motor mounting base 301, and the left end of the fixing tube 304 is fixedly connected to the right edge of the flange 303. A three-stage telescopic tube 316 and a two-stage telescopic tube 312 are coaxially arranged from the outside to the inside inside the fixing tube 304. The two-stage telescopic tube 312 is coaxially arranged inside... It has a lead screw 306, a nut 307 and a first-stage telescopic tube 308. The lead screw 306 is connected to the output shaft of the motor 302 via a coupling 305. The nut 307 is screwed onto the lead screw 306. The first-stage telescopic tube 308 is fixed to the right side of the nut 307. The first-stage movable pulley 309 is fixed inside the right end of the first-stage telescopic tube 308 via a first-stage fixing pin 310. A first-stage rope 311 is wound around the first-stage movable pulley 309. One end of the first-stage rope 311 is fixedly connected to the flange 303 and the other end is fixedly connected to the left end of the second-stage telescopic tube 312.

[0026] The right end of the secondary telescopic tube 312 is fixed with a secondary movable pulley 313 by a secondary fixing pin 314. A secondary rope 315 is wound on the secondary movable pulley 313. One end of the secondary rope 315 is fixedly connected to the flange 303 and the other end is fixedly connected to the left end of the tertiary telescopic tube 316. The right end of the tertiary telescopic tube 316 passes through the interior of the corresponding first telescopic rod 203 and the second telescopic rod 204 in sequence and is then fixed to the interior of the left end of the corresponding third telescopic rod 205.

[0027] A primary tension spring left fixing pin 317 is fixed inside the right end of the primary telescopic tube 308 and located at the right end of the primary movable pulley 309. A primary tension spring right fixing pin 318 is fixed inside the right end of the secondary telescopic tube 312 and located at the left end of the secondary movable pulley 313. A primary tension spring 319 is fixed between the primary tension spring left fixing pin 317 and the primary tension spring right fixing pin 318. A secondary tension spring left fixing pin 320 is fixed inside the right end of the secondary telescopic tube 312 and located at the right end of the secondary movable pulley 313. A secondary tension spring right fixing pin 321 is fixed inside the rightmost end of the tertiary telescopic tube 316. A secondary tension spring 322 is fixed between the secondary tension spring left fixing pin 320 and the secondary tension spring right fixing pin 321.

[0028] In this embodiment, each fixed rod 103 corresponds to an automatic telescopic mechanism 300, or a fixed rod 103 at the top and a fixed rod 103 at the bottom each correspond to an automatic telescopic mechanism 300, and the automatic telescopic mechanisms 300 at the top and the automatic telescopic mechanisms 300 at the bottom are symmetrically arranged.

[0029] In this embodiment, in the initial state, the left ends of the nut 307, the secondary telescopic tube 312, the tertiary telescopic tube 316, and the fixed tube 304 are flush.

[0030] The motor 302 is controlled by an external existing controller, and the controller's control of the motor 302 to rotate forward, reverse, and stop is existing technology.

[0031] When automatic and rapid rightward expansion is required, the controller controls motor 302 to start rotating forward, driving screw 306 to rotate forward. Nut 307 moves to the right on screw 306, causing primary telescopic tube 308 and its internal primary movable pulley 309 to move to the right in tandem. Simultaneously, primary movable pulley 309 rotates forward, driving secondary telescopic tube 312 and its internal secondary movable pulley 313 to move twice as far to the right under the action of primary rope 311. Simultaneously, secondary movable pulley 313 rotates forward, driving secondary telescopic tube 312 and its internal secondary movable pulley 313 to move to the right twice as far as possible under the action of secondary rope 315. The third telescopic tube 316 moves twice to the right, which in turn drives the third telescopic rod 205 to move four times to the right. When the left end of the third telescopic rod 205 moves to the rightmost end of the second telescopic rod 204, it drives the second telescopic rod 204 to move. When the left end of the second telescopic rod 204 moves to the rightmost end of the first telescopic rod 203, it drives the first telescopic rod 203 to move. Thus, under the action of the automatic telescopic mechanism 300, the third telescopic rod 205, the second telescopic rod 204 and the first telescopic rod 203 automatically and quickly extend to the right.

[0032] When automatic and rapid retraction to the left is required, the controller controls motor 302 to start reversing, causing lead screw 306 to rotate in the opposite direction. Nut 307 moves to the left on lead screw 306, causing primary telescopic tube 308 and its internal primary movable pulley 309 to move to the left in conjunction. Simultaneously, primary movable pulley 309 rotates in the opposite direction, causing secondary telescopic tube 312 and its internal secondary movable pulley 313 to move twice as far to the left under the action of primary rope 311. Simultaneously, secondary movable pulley 313 rotates in the opposite direction, under the action of secondary rope 315... The third telescopic tube 316 moves twice to the left, which in turn moves the third telescopic rod 205 four times to the left. When the right end of the third telescopic rod 205 moves to the right end of the second telescopic rod 204, it moves the second telescopic rod 204. When the right end of the second telescopic rod 204 moves to the right end of the first telescopic rod 203, it moves the first telescopic rod 203. Thus, under the action of the automatic telescopic mechanism 300, the third telescopic rod 205, the second telescopic rod 204 and the first telescopic rod 203 automatically and quickly retract to the left.

[0033] In this embodiment, the motor 302 starts rotating forward, pushing the first-stage telescopic tube 308 to move axially to the right via the lead screw and nut mechanism. Simultaneously, the first-stage telescopic tube 308 drives the first-stage movable pulley 309 to move axially to the right, thereby causing the second-stage telescopic tube 312 to move axially to the right. The displacement relationship between the two is that the second-stage telescopic tube 312 is twice that of the first-stage telescopic tube 308. At the same time, the extension of the second-stage telescopic tube 312 stretches the first-stage tension spring 319. The second-stage telescopic tube 312 simultaneously drives the second-stage movable pulley 313 to move axially to the right, thereby causing the third-stage telescopic tube 316 to move axially to the right. The displacement relationship between the two is that the third-stage telescopic tube 316 is twice that of the second-stage telescopic tube 312. Simultaneously, the extension of the third-stage telescopic tube 316 stretches the second-stage tension spring 322. At this point, the automatic telescopic mechanism 300 is fully extended.

[0034] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A foldable negative pressure isolation chamber comprising a framed cabin, characterized in that, The frame cabin includes a fixed frame and a telescopic frame. The fixed frame includes a first X-shaped support frame located at the left end and a fixing rod fixed at each end of the first X-shaped support frame. The four fixing rods are arranged horizontally in parallel, with two fixing rods located at the bottom and the other two fixing rods located at the top. The telescopic frame includes a second X-shaped support frame located at the right end and telescopic rods fixed at each end of the second X-shaped support frame. The four telescopic rods are arranged horizontally in parallel and correspond one-to-one with the fixed rods. Two of the telescopic rods are located at the bottom and the other two are located at the top. The frame cabin also includes an automatic telescopic mechanism corresponding to the fixed rod. The left end of the automatic telescopic mechanism is installed inside the left end of the corresponding fixed rod, and the right end of the automatic telescopic mechanism is fixed to the inside of the corresponding telescopic rod. Under the action of the automatic telescopic mechanism, the telescopic rod automatically and quickly extends to the right and automatically and quickly retracts to the left.

2. The foldable negative pressure isolation chamber of claim 1, wherein, Each of the telescopic rods includes a first telescopic rod, a second telescopic rod, and a third telescopic rod distributed from left to right. The left end of the first telescopic rod extends into the fixed rod, the left end of the second telescopic rod extends into the first telescopic rod, and the left end of the third telescopic rod extends into the second telescopic rod. The right end of the automatic telescopic mechanism passes through the interior of the corresponding first telescopic rod and the second telescopic rod in sequence, and is then fixed to the interior of the left end of the corresponding third telescopic rod. Under the action of the automatic telescopic mechanism, the third telescopic rod, the second telescopic rod, and the first telescopic rod automatically and quickly extend to the right and automatically and quickly retract to the left.

3. The foldable negative pressure isolation chamber of claim 2, wherein, The automatic telescopic mechanism includes a motor, flange, fixed pipe, coupling, lead screw, nut, primary telescopic pipe, primary movable pulley, primary fixed pin, primary rope, secondary telescopic pipe, secondary movable pulley, secondary fixed pin, secondary rope, and tertiary telescopic pipe; The motor is fixed inside the left end of the corresponding fixed rod. The flange is fixed inside the left end of the corresponding fixed rod and is arranged around the output shaft of the motor. The left end of the fixed tube is located inside the left end of the corresponding fixed rod. The left end of the fixed tube is fixedly connected to the right edge of the flange. A third-stage telescopic tube and a second-stage telescopic tube are coaxially arranged from the outside to the inside of the fixed tube. A lead screw, a nut, and a first-stage telescopic tube are coaxially arranged inside the second-stage telescopic tube. The lead screw is connected to the output shaft of the motor through a coupling. A nut is screwed onto the lead screw. A first-stage telescopic tube is fixed to the right side of the nut. A first-stage movable pulley is fixed inside the right end of the first-stage telescopic tube by a first-stage fixed pin. A first-stage rope is wound on the first-stage movable pulley. One end of the first-stage rope is fixedly connected to the flange, and the other end is fixedly connected to the left end of the second-stage telescopic tube. The right end of the secondary telescopic tube is fixed with a secondary movable pulley by a secondary fixing pin. A secondary rope is wound on the secondary movable pulley. One end of the secondary rope is fixedly connected to the flange and the other end is fixedly connected to the left end of the tertiary telescopic tube. The right end of the tertiary telescopic tube passes through the interior of the corresponding first telescopic rod and the second telescopic rod in sequence and is then fixed to the interior of the left end of the corresponding third telescopic rod.

4. The foldable negative pressure isolation chamber of claim 3, wherein, The automatic telescopic mechanism also includes a primary tension spring left fixing pin, a primary tension spring right fixing pin, a primary tension spring, a secondary tension spring left fixing pin, a secondary tension spring right fixing pin, and a secondary tension spring; A first-stage tension spring left fixing pin is fixed inside the right end of the first-stage telescopic tube and located at the right end of the first-stage movable pulley; a first-stage tension spring right fixing pin is fixed inside the right end of the second-stage telescopic tube and located at the left end of the second-stage movable pulley; and a first-stage tension spring is fixed between the first-stage tension spring left fixing pin and the first-stage tension spring right fixing pin. A left fixing pin for a secondary tension spring is fixed inside the right end of the secondary telescopic tube and located at the right end of the secondary movable pulley. A right fixing pin for a secondary tension spring is fixed inside the rightmost end of the tertiary telescopic tube. A secondary tension spring is fixed between the left fixing pin and the right fixing pin of the secondary tension spring.

5. The foldable negative pressure isolation chamber of claim 3, wherein, The automatic telescopic mechanism also includes a motor mounting base, which is fixed inside the left end of the corresponding fixing rod. The motor is fixed inside the motor mounting base, and a flange is also fixed inside the motor mounting base. The left end of the fixing tube is placed inside the motor mounting base.

6. The foldable negative pressure isolation chamber of claim 3, wherein, Each of the aforementioned fixed rods corresponds to an automatic telescopic mechanism, or both the top fixed rod and the bottom fixed rod correspond to an automatic telescopic mechanism.

7. The foldable negative pressure isolation chamber of claim 3, wherein, In the initial state, the left ends of the nut, the secondary telescopic tube, the tertiary telescopic tube, and the fixed tube are flush.

8. The foldable negative pressure isolation chamber of claim 2, wherein, The fixing rod limits the left end of the first telescopic rod to prevent the left end of the first telescopic rod from falling off the right end of the fixing rod.

9. The foldable negative pressure isolation chamber of claim 2, wherein, The first telescopic rod limits the left end of the second telescopic rod to prevent the left end of the second telescopic rod from falling off the right end of the first telescopic rod, and the second telescopic rod limits the left end of the third telescopic rod to prevent the left end of the third telescopic rod from falling off the right end of the second telescopic rod.

10. The foldable negative pressure isolation chamber of claim 2, wherein, Each of the fixed rods has a first guide ring fixed to the outer surface of its right end, and a first arc-shaped support rod is fixed to each of the four first guide rings. A second guide ring is fixed to the outer surface of the right end of each of the first telescopic rods, and a second arc-shaped support rod is fixed to each of the four second guide rings; Each of the second telescopic rods has a third guide ring fixed to the outer surface of its right end, and a third arc-shaped support rod is fixed to each of the four third guide rings.

11. The foldable negative pressure isolation chamber of claim 1, wherein, The fixed frame includes a first fixed ring located at the left end, and four first inclined support rods are fixed on the first fixed ring. The four first inclined support rods constitute a first X-shaped support frame. The telescopic frame includes a second fixed ring located at the right end, and four second inclined support rods are fixed on the second fixed ring. The four second inclined support rods constitute a second X-shaped support frame.

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