Laminar flow bed cover

Abstract

The present invention provides a laminar flow bed cover, comprising a body, a shell, two reels, a second connecting belt, two clamping components, a curtain and a driving mechanism, wherein the reel is detachably connected to the shell, the two clamping components are respectively arranged on two first baffles, the second connecting belt is clamped on the corresponding first baffle by one of the clamping components, and both ends of the second connecting belt can be detachably connected to the first connecting belt. One end of the curtain is detachably connected to one of the first connecting belts, and the other end of the curtain is detachably connected to the second connecting belt, and the driving mechanism is used to synchronously drive the two reels to rotate in opposite directions. By designing the driving mechanism, the two reels, the curtain and the second connecting belt to cooperate with each other, the curtain in use can be replaced with a clean curtain online, and the replacement operation of the curtain is convenient and quick, thereby ensuring the airtightness of the laminar flow bed cover, and will not cause exposure of patients in the laminar flow bed cover when replacing the curtain, thereby reducing the infection probability of the patients.

Description

Technical Field

[0001] The invention relates to the technical field of nursing beds, in particular to a laminar flow bedspread. Background Art

[0002] Laminar flow bedspread is a one-way air purification and disinfection equipment. The laminar flow bedspread constructs an effective movable clean disinfection space, effectively reducing the chance of disease infection in its working space. It is suitable for patients with blood diseases, radiotherapy, chemotherapy and other immunocompromised patients.

[0003] Since patients stay in the laminar flow bedspread for a long time, the curtains of the laminar flow bedspread need to be disinfected and replaced after a long period of use. When the patient is in the laminar flow bedspread, how to achieve online replacement of the curtains while ensuring the airtightness of the laminar flow bedspread and reducing the infection rate of the patient is an urgent problem to be solved by technical personnel in this field. Summary of the invention

[0004] In view of the defects in the prior art, the object of the present invention is to provide a laminar flow bed cover to achieve online replacement of the surrounding curtain, ensure the airtightness of the laminar flow bed cover, and reduce the infection probability of the patient.

[0005] In order to achieve the above-mentioned object, the present invention provides a laminar flow bed cover, comprising a body, four legs are respectively provided at the four corners of the bottom; a shell, which is arranged on the body and located between two adjacent legs, two first chambers arranged side by side are provided in the shell, and first baffles are respectively provided on both sides of the shell; two reels are respectively rotatably fitted in the first chambers along the vertical direction, the reels are detachably connected to the shell, and a flexible first connecting belt is provided on the reels;

[0006] A flexible second connecting belt, which is arranged on one of the first baffles, and both ends of the second connecting belt can be detachably connected to the first connecting belt; two clamping components, which are respectively arranged on the two first baffles, and one of the clamping components presses the second connecting belt against the first baffle; a flexible curtain, which wraps around the four supporting legs, one end of the curtain is detachably connected to one of the first connecting belts, and the other end of the curtain is detachably connected to the second connecting belt; and a driving mechanism, which is arranged on the shell, and the driving mechanism is used to synchronously drive the two reels to rotate in opposite directions.

[0007] Preferably, a second chamber is provided in the shell, and the second chamber is located above the two first chambers. The driving mechanism includes: two connecting shafts, each corresponding to the two reels, the connecting shafts rotatably fit in the second chamber and can be lifted and lowered vertically, the connecting shaft is detachably connected to the top of the reel and can drive the reel to rotate; a transmission assembly, which connects the two connecting shafts and makes them rotate in opposite directions; and two lifting assemblies, respectively used to drive the two connecting shafts to perform lifting and lowering actions.

[0008] Preferably, the transmission assembly includes: two gear columns, which are arranged between the two connecting shafts, the gear columns are in the form of spur gear structures, the gear columns are vertically rotated and fitted in the second chamber, and the two gear columns are meshed for transmission; two driven gears, each of which is sleeved on a corresponding one of the connecting shafts, and the driven gears are meshed with adjacent gear columns; and a motor, which is transmission-connected to one of the gear columns.

[0009] Preferably, the lifting assembly includes an electric push rod and a connecting arm, the electric push rod is arranged in the second chamber, one end of the connecting arm is rotatably connected to the connecting shaft, and the other end of the connecting arm is connected to the push rod of the electric push rod.

[0010] Preferably, the bottom of the connecting shaft is recessed upward to form a first accommodating hole, and the inner wall of the first accommodating hole is provided with two first protrusions; the top of the reel is provided with a first connecting head which can be inserted into the first accommodating hole, and the outer wall of the first connecting head is recessed to form two clearance grooves, and each of the first protrusions can extend into the corresponding clearance groove.

[0011] Preferably, the bottom of the first chamber is rotatably matched with a rotating seat, the rotating seat is provided with a second accommodating hole, and the inner wall of the second accommodating hole is provided with a plurality of limiting grooves; the bottom of the reel is provided with a second connecting head, and the outer wall of the second connecting head is provided with a plurality of second protrusions, and each of the second protrusions can extend into the corresponding limiting groove.

[0012] Preferably, the clamping assembly includes a support seat, an airbag and an air pump. A first through hole is formed between the support seat and the first baffle. The first connecting belt, the second connecting belt and the curtain can all pass through the first through hole. The airbag and the air pump are both arranged on the support seat. The airbag is located in the first through hole and is connected to the air pump. When the airbag is inflated, the second connecting belt can be pressed in the first through hole.

[0013] Preferably, the first connecting belt is provided with a first connecting part, the two ends of the second connecting belt are respectively provided with second connecting parts, the two ends of the curtain are respectively provided with third connecting parts, and the third connecting parts can be detachably connected to the first connecting part and the second connecting part respectively.

[0014] Preferably, a second through hole is provided on the side wall of the support leg, and the first connecting belt, the second connecting belt and the surrounding curtain can all pass through the second through hole; two second baffles are provided at the bottom of the body, the second baffles are arranged along the length direction of the body, and are respectively connected to the two support legs on the same side, a fourth connecting part is provided on the second baffle, and a fifth connecting part is provided on the surrounding curtain, and the fifth connecting part is detachably connected to the fourth connecting part.

[0015] Preferably, an ultraviolet disinfection lamp is provided in the first chamber.

[0016] Beneficial effects of the present invention:

[0017] The invention discloses a laminar flow bed cover, which can replace the used curtain with a clean curtain online by designing a driving mechanism, two reels, a curtain and a second connecting belt to cooperate with each other. The curtain replacement operation is convenient and quick, and the airtightness of the laminar flow bed cover is ensured. When the curtain is replaced, the patient in the laminar flow bed cover will not be exposed, thereby reducing the infection probability of the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0019] Figure 1 A schematic structural diagram of a laminar flow bed cover provided by an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure behind the hidden curtain;

[0021] Figure 3 It is a schematic diagram of the structure in which the surrounding curtain, the second connecting belt and the first connecting belt cooperate with each other;

[0022] Figure 4 It is a schematic diagram of the structure of the scroll;

[0023] Figure 5 for Figure 3 The local schematic diagram of the C in the middle;

[0024] Figure 6 It is a schematic diagram of the structure of the connection between the first connecting belt and the surrounding curtain;

[0025] Figure 7 is a structural schematic diagram of the driving mechanism;

[0026] Figure 8 It is a structural schematic diagram of the connection shaft and the first connection head being separated;

[0027] Fig. 9 It is a structural schematic diagram of the connecting shaft;

[0028] Fig.10 is a cross-sectional schematic diagram of the cooperation between the first protrusion and the clearance groove;

[0029] Fig.11 is a schematic structural diagram of the bottom of the first chamber;

[0030] Fig.12 is a schematic structural diagram of a second connector;

[0031] Fig.13 is a structural schematic diagram of a clamping assembly;

[0032] Fig.14 A cross-sectional schematic diagram of the pressing assembly pressing the second connecting belt;

[0033] Fig.15 is a schematic structural diagram of a second through hole;

[0034] Reference numerals:

[0035] 10-machine body, 11-supporting foot, 12-second baffle;

[0036] 20-housing, 21-first chamber, 22-first baffle, 23-second chamber, 24-rotating seat, 241-second accommodating hole, 242-limiting groove;

[0037] 30 - reel, 31 - first connecting belt, 311 - first connecting portion, 32 - first connecting head, 321 - clearance groove, 33 - second connecting head, 331 - second protrusion;

[0038] 40-second connecting belt, 41-second connecting portion;

[0039] 50-pressing assembly, 51-support seat, 52-air bag, 53-air pump;

[0040] 60-curtain, 61-third connecting part;

[0041] 70 - driving mechanism, 71 - connecting shaft, 711 - first receiving hole, 712 - first protrusion, 72 - gear column, 73 - driven gear, 74 - motor, 75 - electric push rod, 76 - connecting arm;

[0042] 81-first through hole, 82-second through hole;

[0043] 90-UV disinfection lamp. DETAILED DESCRIPTION

[0044] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0045] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0046] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0047] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0048] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0050] like Figure 1-15 As shown, in one embodiment of the present invention, a laminar flow bedspread is provided, comprising a machine body 10, a shell 20, two reels 30, a second connecting belt 40, two clamping assemblies 50, a curtain 60 and a driving mechanism 70. Four legs 11 are fixed to the four corners of the bottom of the machine body 10, respectively. The shell 20 is arranged on the machine body 10 and between two adjacent legs 11. The shell 20 is close to the end of the bed. Two first chambers 21 arranged side by side are provided in the shell 20, and first baffles 22 are provided on both sides of the shell 20.

[0051] The two reels 30 are rotated vertically and respectively engaged in the first chamber 21. The reels 30 are detachably connected to the shell 20. A first connecting belt 31 is provided on the reel 30. The first connecting belt 31 and the second connecting belt 40 are both made of flexible material. Two clamping components 50 are respectively provided on the two first baffles 22. The second connecting belt 40 is clamped on the corresponding first baffle 22 by one of the clamping components 50. Both ends of the second connecting belt 40 can be detachably connected to the first connecting belt 31.

[0052] The curtain 60 is made of a flexible and transparent material, and is provided with a zipper for the patient to enter and exit. The curtain 60 passes through the four legs 11, and one end of the curtain 60 is detachably connected to one of the first connecting belts 31, and the other end of the curtain 60 is detachably connected to the second connecting belt 40. The driving mechanism 70 is provided on the housing 20, and is used to synchronously drive the two reels 30 to rotate in opposite directions.

[0053] The first connection belt 31 is provided with a first connection portion 311, the second connection portions 41 are respectively provided at both ends of the second connection belt 40, and the third connection portions 61 are respectively provided at both ends of the curtain 60, and the third connection portions 61 can be detachably connected to the first connection portion 311 and the second connection portion 41. The first connection portion 311 and the second connection portion 41, as well as the second connection portion 41 and the third connection portion 61 are detachably connected using a zipper structure, and the first connection portion 311, the second connection portion 41 and the third connection portion 61 are all chain tooth structures, and a slider is provided on the second connection portion 41.

[0054] For the convenience of description, in the following text, a distinction is made between the curtain 60 in use and the curtain 60 that has been cleaned and disinfected. The curtain 60 in use is recorded as curtain 60a (i.e., the suffixes of the components included in the curtain 60a are all marked with "a"), and the curtain 60 that has been cleaned and disinfected is recorded as curtain 60b (i.e., the suffixes of the components included in the curtain 60b are all marked with "b").

[0055] The two reels 30 are distinguished, the reel 30 connected to the curtain 60a is marked as reel 30a (that is, the suffix of the components included in the reel 30a is marked with "a"), and the other reel 30 is marked as reel 30b (that is, the suffix of the components included in the reel 30b is marked with "b").

[0056] The two clamping assemblies 50 are distinguished, and the clamping assembly 50 that is clamping the second connecting belt 40 is recorded as the clamping assembly 50a (that is, the suffix of the parts included in the clamping assembly 50a is marked with "a"), and the corresponding first baffle 22 is recorded as the first baffle 22a. The other clamping assembly 50 is recorded as the clamping assembly 50b (that is, the suffix of the parts included in the clamping assembly 50b is marked with "b"), and the corresponding first baffle 22 is recorded as the first baffle 22b.

[0057] When the curtain 60a needs to be replaced with the curtain 60b, the medical staff first connects the third connection portion 61b of the curtain 60b with the first connection portion 311b of the first connection belt 31b of the reel 30b, and winds the curtain 60b around the reel 30b. Then, the reel 30b with the curtain 60b is installed in the first chamber 21, and the other third connection portion 61b of the reel 30b is connected with the second connection portion 41 of the second connection belt 40. Then, the clamping assembly 50a releases the second connection belt 40, and the driving mechanism 70 is started to synchronously drive the reel 30a to rewind and the reel 30b to unwind.

[0058] During this process, the reel 30a will continuously reel in the curtain 60a, and the second connecting belt 40 will also pull the curtain 60b to continuously bypass the four legs 11, thereby achieving the purpose of replacing the curtain 60a. When the second connecting belt 40 moves to the first baffle 22b, the pressing component 50b is activated to press the second connecting belt 40 against the first baffle 22b. At this time, the curtain 60a has been reeled in by the reel 30a, and the curtain 60b is synchronously set outside the bed.

[0059] Then, the medical staff disassembles the second connection portion 41 of the second connection belt 40 and the third connection portion 61a of the curtain 60a, and takes out the reel 30a with the curtain 60a rolled up from the housing 20, and then the curtain 60a can be sent for cleaning and disinfection.

[0060] The laminar flow bed cover provided in the present embodiment can replace the currently used curtain 60 with a clean curtain 60 online by designing the cooperation among the driving mechanism 70, the two reels 30, the curtain 60 and the second connecting belt 40. The replacement operation of the curtain 60 is convenient and quick, and the airtightness of the laminar flow bed cover is ensured. When the curtain 60 is replaced, the patient in the laminar flow bed cover will not be exposed, thereby reducing the infection probability of the patient.

[0061] In one embodiment, a second chamber 23 is provided in the housing 20, and the second chamber 23 is located above the two first chambers 21. The driving mechanism 70 includes two connecting shafts 71, a transmission assembly, and two lifting assemblies. The two connecting shafts 71 correspond to the two reels 30 respectively. The connecting shafts 71 are rotatably matched in the second chamber 23 and can be lifted and lowered vertically. The connecting shafts 71 are detachably connected to the top of the reels 30 and can drive the reels 30 to rotate. The transmission assembly drives and connects the two connecting shafts 71 and makes them rotate in opposite directions. The two lifting assemblies are used to drive the two connecting shafts 71 to lift and lower respectively.

[0062] Specifically, the transmission assembly includes two gear columns 72, two driven gears 73 and a motor 74. The two gear columns 72 are arranged between the two connecting shafts 71. The gear columns 72 are spur gear structures. The gear columns 72 rotate vertically and fit in the second chamber 23. The two gear columns 72 are meshed for transmission. Each driven gear 73 is sleeved on a corresponding connecting shaft 71, and the driven gear 73 meshes with the adjacent gear columns 72. The motor 74 is in transmission connection with one of the gear columns 72.

[0063] Furthermore, the lifting assembly includes an electric push rod 75 and a connecting arm 76 . The electric push rod 75 is disposed in the second chamber 23 . One end of the connecting arm 76 is rotatably connected to the connecting shaft 71 , and the other end of the connecting arm 76 is connected to a push rod of the electric push rod 75 .

[0064] For the convenience of description, in the following text, the two connecting shafts 71, the transmission assembly and the two lifting assemblies are distinguished, and the connecting shaft 71 connected to the reel 30a is recorded as the connecting shaft 71a (that is, the suffixes of the components included in the connecting shaft 71a are all marked with "a"), and the connecting shaft 71 connected to the reel 30b is recorded as the connecting shaft 71b (that is, the suffixes of the components included in the connecting shaft 71b are all marked with "b").

[0065] The lifting assembly connected to the reel 30a is recorded as lifting assembly a (i.e., the suffixes of the components included in the lifting assembly a are all marked with "a"), and the lifting assembly connected to the reel 30b is recorded as lifting assembly b (i.e., the suffixes of the components included in the lifting assembly b are all marked with "b").

[0066] The driven gear 73 sleeved on the connecting shaft 71a is referred to as the driven gear 73a, and the gear column 72 meshing with the driven gear 73a is referred to as the gear column 72a. The driven gear 73 sleeved on the connecting shaft 71b is referred to as the driven gear 73b, and the gear column 72 meshing with the driven gear 73b is referred to as the gear column 72b.

[0067] When the motor 74 is started, the gear column 72a and the gear column 72b will rotate in opposite directions, and respectively drive the driven gear 73a and the driven gear 73b to rotate in opposite directions, and the connecting shaft 71a and the connecting shaft 71b to rotate in opposite directions. In this way, one of the reels 30a and 30b can be wound up, and the other can be unwound.

[0068] See also Figure 8 Taking the removal of the reel 30b as an example, after the electric push rod 75b extends out of the push rod, it will drive the connecting arm 76b to lift the connecting shaft 71b upward, and the connecting shaft 71b will gradually separate from the top of the reel 30b. In this way, the medical staff only needs to slightly lift the reel 30b upward to remove the reel 30b from the housing 20. The structural design of the driving mechanism 70 can facilitate the medical staff to disassemble and install the reels 30a and 30b, thereby improving the convenience of using the laminar flow bed cover.

[0069] In one embodiment, the bottom of the connecting shaft 71 is recessed upward to form a first receiving hole 711, and the inner wall of the first receiving hole 711 is provided with two first protrusions 712. The top of the reel 30 is provided with a first connector 32 that can be inserted into the first receiving hole 711, and the outer wall of the first connector 32 is recessed to form two clearance grooves 321, and each first protrusion 712 can extend into the corresponding clearance groove 321.

[0070] The bottom of the first chamber 21 is rotatably matched with a rotating seat 24, which is provided with a second receiving hole 241, and the inner wall of the second receiving hole 241 is provided with a plurality of limiting grooves 242. The bottom of the reel 30 is provided with a second connector 33, and the outer wall of the second connector 33 is provided with a plurality of second protrusions 331, each of which can extend into the corresponding limiting groove 242.

[0071] Similarly, taking the removal of the reel 30b as an example, after the electric push rod 75b extends the push rod, it will drive the connecting arm 76b to lift the connecting shaft 71b upward, and the first protrusion 712b of the connecting shaft 71b will gradually disengage from the yield groove 321b of the first connecting head 32b. In this way, the medical staff only needs to slightly lift the reel 30b upward to make the second connecting head 33b disengage from the rotating seat 24b, and then the reel 30b can be taken out of the shell 20.

[0072] In one embodiment, the pressing assembly 50 includes a support seat 51, an air bag 52 and an air pump 53. A first through hole 81 is formed between the support seat 51 and the first baffle 22. The first connecting belt 31, the second connecting belt 40 and the curtain 60 can all pass through the first through hole 81. The air bag 52 and the air pump 53 are both arranged on the support seat 51. The air bag 52 is located in the first through hole 81 and communicates with the air pump 53. When the air bag 52 is inflated, the second connecting belt 40 can be pressed in the first through hole 81. When the second connecting belt 40 is pressed on the first baffle 22a, the second connecting parts 41 at both ends of the second connecting belt 40 are respectively located on both sides of the support seat 51a. When the second connecting belt 40 is pressed on the first baffle 22b, the second connecting parts 41 at both ends of the second connecting belt 40 are respectively located on both sides of the support seat 51b, so that the first connecting part 311a or the first connecting part 311b is conveniently connected to the second connecting part 41 in a detachable manner.

[0073] When the curtain 60a needs to be replaced with the curtain 60b, the medical staff first connects the third connection portion 61b of the curtain 60b with the first connection portion 311b of the first connection belt 31b of the reel 30b, and winds the curtain 60b around the reel 30b. Then, the reel 30b with the curtain 60b is installed in the first chamber 21, and the other third connection portion 61b of the reel 30b is connected with the second connection portion 41 of the second connection belt 40. Then, the air pump 53a is operated to deflate the airbag 52a, so that the airbag 52a will be separated from the second connection belt 40, and the driving mechanism 70 is started to synchronously drive the reel 30a to reel and the reel 30b to unreel.

[0074] During this process, the reel 30a will continuously reel in the curtain 60a, and the second connecting belt 40 will also pull the curtain 60b to continuously bypass the four legs 11, thereby achieving the purpose of replacing the curtain 60a. When the second connecting belt 40 moves to the first baffle 22b, the air pump 53b is started, and the air pump 53b inflates the air bag 52b, thereby pressing the second connecting belt 40 against the first baffle 22b.

[0075] Then, the medical staff disassembles the second connecting portion 41 of the second connecting belt 40 and the third connecting portion 61a of the curtain 60a. Since the second connecting belt 40 is pressed against the first baffle 22b, the second connecting belt 40 will not fall off.

[0076] In one embodiment, a second through hole 82 is provided on the side wall of the support leg 11, and the first connecting belt 31, the second connecting belt 40 and the surrounding curtain 60 can all pass through the second through hole 82. Two second baffles 12 are provided at the bottom of the body 10, and the second baffles 12 are arranged along the length direction of the body 10 and are respectively connected to the two support legs 11 on the same side. A fourth connecting portion is provided on the second baffle 12, and a fifth connecting portion is provided on the surrounding curtain 60, and the fifth connecting portion is detachably connected to the fourth connecting portion (not shown in the drawings). The design of the second through hole 82 can provide a certain support effect on the surrounding curtain 60, and the fourth connecting portion and the fifth connecting portion can be detachably connected by using a hidden buckle structure (the hidden buckle structure is a prior art and will not be described in detail here), thereby further enhancing the fixing effect on the surrounding curtain 60 and preventing the surrounding curtain 60 from sliding off.

[0077] In one embodiment, in order to sterilize and disinfect the first chamber 21 , an ultraviolet disinfection lamp 90 is disposed in the first chamber 21 .

[0078] In the description of the present invention, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A laminar flow bed cover, characterized in that: include: The machine body has four legs at the four corners of its bottom; A shell, which is arranged on the body and between two adjacent legs, wherein two first chambers arranged side by side are arranged in the shell, and first baffles are respectively arranged on both sides of the shell; Two reels are respectively rotatably fitted in the first chamber along the vertical direction, the reels are detachably connected to the shell, and a flexible first connecting belt is provided on the reels; A flexible second connecting belt, which is arranged on one of the first baffles, and both ends of the second connecting belt can be detachably connected to the first connecting belt; Two pressing assemblies are respectively arranged on the two first baffles, and one of the pressing assemblies presses the second connecting belt onto the first baffle; A flexible curtain, which is wound around the four legs, one end of the curtain being detachably connected to one of the first connecting belts, and the other end of the curtain being detachably connected to the second connecting belt; as well as A driving mechanism, which is arranged on the housing, and is used to synchronously drive the two reels to rotate in opposite directions; Wherein, the pressing assembly comprises a support seat, an air bag and an air pump, a first through hole is formed between the support seat and the first baffle, the first connecting belt, the second connecting belt and the curtain can all pass through the first through hole, the air bag and the air pump are both arranged on the support seat, the air bag is located in the first through hole and is connected to the air pump, and when the air bag is inflated, the second connecting belt can be pressed in the first through hole; The first connecting belt is provided with a first connecting portion, the two ends of the second connecting belt are respectively provided with second connecting portions, the two ends of the curtain are respectively provided with third connecting portions, and the third connecting portions can be detachably connected to the first connecting portion and the second connecting portion respectively; The curtain in use and the curtain that has been cleaned and disinfected are distinguished, and the curtain in use is recorded as curtain a, and the curtain that has been cleaned and disinfected is recorded as curtain b; the two reels are distinguished, and the reel that is connected to the curtain a is recorded as reel a, and the other reel is recorded as reel b; The two pressing assemblies are distinguished, the pressing assembly that is pressing the second connecting belt is recorded as pressing assembly a, and the corresponding first baffle is recorded as first baffle a; The other clamping assembly is denoted as clamping assembly b, and the corresponding first baffle is denoted as first baffle b; When the curtain a needs to be replaced with the curtain b, the medical staff first connects the third connection portion b of the curtain b with the first connection portion b of the first connection belt b of the reel b, and winds the curtain b around the reel b; then, the reel b with the curtain b rolled up is installed into the first chamber, and the other third connection portion b of the reel b is connected with the second connection portion of the second connection belt; then, the clamping assembly a releases the second connection belt, and the driving mechanism is started to synchronously drive the reel a to reel and the reel b to unreel; During this process, the reel a will continuously reel in the curtain a, and the second connecting belt will also pull the curtain b to continuously bypass the four legs, thereby achieving the purpose of replacing the curtain a; when the second connecting belt moves to the first baffle b, the pressing component b is started to press the second connecting belt onto the first baffle b. At this time, the curtain a has been reeled in by the reel a, and the curtain b is synchronously set outside the bed; Then, the medical staff disassembles the second connecting portion of the second connecting belt and the third connecting portion a of the curtain a, and takes out the reel a with the curtain a rolled up from the housing, and then the curtain a can be sent for cleaning and disinfection.

2. The laminar flow bed cover according to claim 1, characterized in that: A second chamber is provided in the housing, and the second chamber is located above the two first chambers. The driving mechanism includes: Two connecting shafts, corresponding to the two reels respectively, the connecting shafts are rotatably fitted in the second chamber and can be lifted and lowered vertically, the connecting shafts are detachably connected to the tops of the reels and can drive the reels to rotate; A transmission assembly, which transmits and connects the two connecting shafts and causes them to rotate in opposite directions; and The two lifting assemblies are respectively used to drive the two connecting shafts to perform lifting actions.

3. The laminar flow bed cover according to claim 2, characterized in that: The transmission assembly comprises: Two gear columns are arranged between the two connecting shafts, the gear columns are spur gear structures, the gear columns are vertically rotated and fitted in the second chamber, and the two gear columns are meshed for transmission; two driven gears, each of which is sleeved on a corresponding one of the connecting shafts, and the driven gear is meshed with an adjacent gear column; and A motor is drivingly connected to one of the gear columns.

4. The laminar flow bed cover according to claim 2, characterized in that: The lifting assembly includes an electric push rod and a connecting arm. The electric push rod is arranged in the second chamber. One end of the connecting arm is rotatably connected to the connecting shaft, and the other end of the connecting arm is connected to the push rod of the electric push rod.

5. The laminar flow bed cover according to claim 2, characterized in that: The bottom of the connecting shaft is recessed upward to form a first accommodating hole, and the inner wall of the first accommodating hole is provided with two first protrusions; the top of the reel is provided with a first connecting head that can be inserted into the first accommodating hole, and the outer wall of the first connecting head is recessed to form two clearance grooves, and each of the first protrusions can extend into the corresponding clearance groove.

6. The laminar flow bed cover according to claim 5, characterized in that: The bottom of the first chamber is rotatably matched with a rotating seat, the rotating seat is provided with a second accommodating hole, and the inner wall of the second accommodating hole is provided with a plurality of limiting grooves; the bottom of the reel is provided with a second connecting head, and the outer wall of the second connecting head is provided with a plurality of second protrusions, and each of the second protrusions can extend into the corresponding limiting groove.

7. The laminar flow bed cover according to claim 1, characterized in that: A second through hole is provided on the side wall of the support foot, and the first connecting belt, the second connecting belt and the surrounding curtain can all pass through the second through hole; Two second baffles are provided at the bottom of the body, which are arranged along the length direction of the body and are respectively connected to the two supporting legs on the same side. A fourth connecting part is provided on the second baffle, and a fifth connecting part is provided on the curtain. The fifth connecting part is detachably connected to the fourth connecting part.

8. The laminar flow bed cover according to claim 1, characterized in that An ultraviolet disinfection lamp is arranged in the first chamber.

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