Active purification air supply positive pressure module applicable to disposable protective clothing
By designing the mechanism of automatically replacing the active plate in the active purification air supply positive pressure module and the design of the adjustable connecting strap, the problem of replacement of the active plate and inconvenient wearing of the existing module is solved, and a simpler and more comfortable operation and wear experience is achieved.
Patent Information
- Application Number
- CN202421493293.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-27
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-06-27
AI Technical Summary
The existing active purification air supply positive pressure module requires disassembly of the shell and use special tools when replacing the active plate, which is troublesome and may cause discomfort when worn.
An active purification air supply positive pressure module suitable for disposable protective clothing is designed, using filter components and winding components. The active plate is automatically ejected and replaced by the combination of push plate and return spring. The connecting belts A and B are connected by Velcro. The winding components can adjust the length of the connecting belt B for wearing.
The rapid replacement of the active plate and the fine adjustment of the connecting strap are achieved, which simplifies the operation process and reduces the possibility of wear discomfort.
Smart Images
Figure CN222656357U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of disposable protective clothing, in particular to an active purification air supply positive pressure module suitable for disposable protective clothing. Background Art
[0002] Disposable protective clothing is a disposable garment designed to protect the user from specific hazards. Usually, when worn, the entire body is in a closed state, thereby protecting the user from hazards. However, in a fully closed state, the user will inevitably feel uncomfortable after wearing it for a long time, and the body temperature generated cannot be dissipated to the outside, so some existing protective clothing is equipped with an active purification air supply positive pressure module.
[0003] The active purification air supply positive pressure module is a device used to purify air and provide a positive pressure environment. It is usually composed of a housing, a fan, a filter component, a control panel and other parts.
[0004] Most of the existing active purification air supply positive pressure modules are equipped with active plates to filter the inhaled air. However, when removing the active plates, some devices need to open the external shell, and then use special tools to rotate the bolts to remove the active plates. The disassembly and installation are troublesome and inconvenient. Most of the existing devices are equipped with Velcro when worn, and the device is quickly worn on the body through the suction of the Velcro. If the user wears it for a long time, it may cause discomfort. When adjusting, the Velcro still needs to be released to re-bind, which is troublesome to use. Therefore, an active purification air supply positive pressure module suitable for disposable protective clothing is proposed to solve the above problems. Utility Model Content
[0005] In order to make up for the above shortcomings, the utility model provides an active purification air supply positive pressure module suitable for disposable protective clothing, aiming to improve the problem in the prior art that the active plate is disassembled by rotating bolts with special tools, which makes disassembly and installation more troublesome and inconvenient.
[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an active purification air supply positive pressure module suitable for disposable protective clothing, comprising a shell, the outer wall of the shell is provided with a connecting belt A, one end of the connecting belt A is provided with a winding assembly, and the other end of the connecting belt A is detachably installed with a connecting belt B, a control panel is provided on the left side of the top of the shell, a connecting port is fixedly connected to the right side of the top of the shell, a fan is provided on the surface of the shell, a baffle is rotatably connected to the left outer wall of the shell, a filter assembly is provided on the inner wall of the shell, and the filter assembly includes a wedge block, which is elastically connected to the bottom end of the inner wall of the shell by a limit spring, the inner side wall of the shell is elastically connected to a push plate by a reset spring, and the inner wall of the shell is slidably connected to an active plate.
[0007] As a further description of the above technical solution:
[0008] The winding assembly comprises a cylinder, the inner wall of the cylinder is rotatably connected to a winding shaft, the top end of the outer wall of the cylinder is rotatably connected to a connecting block, and the inner wall of the connecting block is elastically connected to a limiting block via a connecting spring.
[0009] As a further description of the above technical solution:
[0010] One end of the limit spring is fixedly connected to the bottom end of the outer wall of the wedge block, and the other end of the limit spring is fixedly connected to the bottom end of the inner wall of the shell.
[0011] As a further description of the above technical solution:
[0012] A slot is provided at the bottom end of the outer wall of the active plate, the top end of the outer wall of the wedge block is engaged with the inner wall of the slot, and the wedge block is slidably connected to the inner wall of the bottom end of the shell.
[0013] As a further description of the above technical solution:
[0014] One end of the return spring is fixedly connected to the right outer wall of the push plate, and the other end of the return spring is fixedly connected to the inner side wall of the shell.
[0015] As a further description of the above technical solution:
[0016] The push plate is slidably connected to the inner side wall of the shell, and the left outer wall of the push plate is in contact with the outer wall of the active plate.
[0017] As a further description of the above technical solution:
[0018] The end of the connecting belt A away from the shell is fixedly connected to the outer wall of the cylinder, the connecting belt B penetrates and is slidably connected to the inner wall of the cylinder, and the end of the connecting belt B is fixedly connected to the outer wall of the winding shaft.
[0019] As a further description of the above technical solution:
[0020] The connecting block is fixedly connected to the rotation center point of the winding shaft, one end of the connecting spring is fixedly connected to the surface of the limit block, the other end of the connecting spring is fixedly connected to the top of the inner wall of the connecting block, the limit block penetrates and is slidably connected to the inner wall of the connecting block, a slot is provided at the top of the outer wall of the cylinder, and the bottom end of the outer wall of the limit block is engaged with the inner wall of the slot.
[0021] The utility model has the following beneficial effects:
[0022] 1. In the utility model, by providing a filter assembly, dust and moisture in the air can be isolated by the active plate during daily air supply. At the same time, when a new active plate is replaced and the new one is inserted into the interior of the shell, the old active plate will be automatically pushed out by the elastic action of the push plate, thereby achieving rapid replacement of the active plate without opening the shell.
[0023] 2. In the utility model, by providing a winding assembly, after the patient fits the connecting belt B and the connecting belt A together through the Velcro, the connecting block can be rotated to drive the winding shaft to rotate inside the cylinder, so that the connecting belt B wound up by the winding shaft extends outward, so as to perform fine adjustment and avoid excessive tightness, which may easily make the wearer feel uncomfortable. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 This is a schematic diagram of the overall three-dimensional structure of an active purification air supply positive pressure module applicable to disposable protective clothing proposed by the utility model;
[0025] Figure 2 This is a schematic diagram of the structure of the shielding plate of the active purification air supply positive pressure module applicable to the disposable protective clothing proposed by the utility model in the open state;
[0026] Figure 3 This is a schematic diagram of the structure of the active plate and the cylinder in the separated state of the active purification air supply positive pressure module applicable to the disposable protective clothing proposed by the utility model;
[0027] Figure 4 This is an enlarged structural diagram of part A in 3 of an active purification air supply positive pressure module applicable to disposable protective clothing proposed by the utility model;
[0028] Figure 5 This is a schematic diagram of a partial cross-sectional structure of a cylinder of an active purification air supply positive pressure module applicable to a disposable protective clothing proposed by the utility model;
[0029] Figure 6 The utility model provides an active purification air supply positive pressure module suitable for disposable protective clothing Figure 5 The enlarged structural diagram of part B is shown in the figure.
[0030] Legend:
[0031] 1. Shell; 2. Connecting belt A; 3. Winding assembly; 31. Cylinder; 32. Winding shaft; 33. Connecting block; 34. Connecting spring; 35. Limiting block; 4. Connecting belt B; 5. Control panel; 6. Connecting port; 7. Fan; 8. Shielding plate; 9. Filter assembly; 91. Active plate; 92. Limiting spring; 93. Wedge block; 94. Reset spring; 95. Push plate. DETAILED DESCRIPTION
[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0033] Reference Figure 1-Figure 3 The utility model provides an embodiment: an active purification air supply positive pressure module suitable for disposable protective clothing, including a shell 1, the shell 1 is the exterior of the existing air supply structure, the outer wall of the shell 1 is provided with a connecting belt A2, one end of the connecting belt A2 is provided with a winding component 3, the other end of the connecting belt A2 is detachably installed with a connecting belt B4, and the connection between the connecting belt A2 and the connecting belt B4 is provided with velvet Velcro and hook Velcro, and the two sets of Velcro are fitted together to connect the connecting belt A2 and the connecting belt B4, so that the staff can wear it on the body conveniently.
[0034] Reference Figure 2-Figure 4 A control panel 5 is provided on the left side of the top of the shell 1. The control panel 5 is a prior art. A power display and operation buttons are provided on its surface. The fan 7 can be controlled to rotate by the buttons, so that the external wind can enter the interior of the shell 1 and be transported outward from the connection port 6, so as to enter the disposable protective clothing worn by the patient for air supply. A connection port 6 is fixedly connected to the right side of the top of the shell 1. The connection port 6 is a prior art. A hose at the protective hood can be plugged in the interior of the shell 1, so that the air filtered by the active plate 91 can be transported outward from the connection port 6. A fan 7 is provided on the surface of the shell 1. A baffle plate 8 is rotatably connected to the left outer wall of the shell 1. The baffle plate 8 is a prior art. A torsion spring is provided at its rotation point. The baffle plate 8 can be rotated and opened by the torsion spring, so as to facilitate the replacement of the internal active plate 91.
[0035] Reference Figure 2-Figure 4The inner wall of the shell 1 is provided with a filter assembly 9, and the filter assembly 9 includes a wedge block 93. The front end of the wedge block 93 is provided with an arc surface. Through the setting of its arc surface, the active plate 91 will squeeze the arc surface of the wedge block 93 when entering its inner wall, so that it can move downward on the inner wall of the shell 1. The wedge block 93 is elastically connected to the bottom end of the inner wall of the shell 1 through a limit spring 92. One end of the limit spring 92 is fixedly connected to the bottom end of the outer wall of the wedge block 93, and the other end of the limit spring 92 is fixedly connected to the bottom end of the inner wall of the shell 1. The function of the limit spring 92 is to automatically reset the arc surface of the wedge block 93 when it is squeezed and moves downward on the inner wall of the shell 1. A card slot is provided at the bottom end of the outer wall of the active plate 91, and the top end of the outer wall of the wedge block 93 is carded with the inner wall of the card slot. The card connection between the two fixes the position of the active plate 91 inside the shell 1.
[0036] Reference Figure 3-Figure 4 The wedge block 93 is slidably connected to the inner wall of the bottom end of the shell 1, and the inner side wall of the shell 1 is elastically connected to a push plate 95 through a return spring 94. One end of the return spring 94 is fixedly connected to the outer wall on the right side of the push plate 95, and the other end of the return spring 94 is fixedly connected to the inner side wall of the shell 1. The function of the return spring 94 is to automatically reset the position of the push plate 95 after the push plate 95 is no longer contacted and squeezed by the active plate 91, so that the active plate 91 can be pushed outward from the inner wall of the shell 1. The push plate 95 is slidably connected to the inner side wall of the shell 1, and the left side of the push plate 95 The outer wall is in contact with the outer wall of the active plate 91. The contact between the two makes the bottom end of the active plate 91 contact the outer wall of the push plate 95 when entering the inner wall of the shell 1, and squeezes the push plate 95 to move on the inner wall of the shell 1. The inner wall of the shell 1 is slidably connected with the active plate 91. The inner wall of the shell 1 is provided with two groups of empty grooves that fit the active plates 91, and the push plates 95 are also provided with two groups. When one group of active plates 91 enters the inner wall of the shell 1, the other group of active plates 91 will be pushed outward by the push plate 95 after being squeezed and reset by the reset spring 94.
[0037] Reference Figure 1 and Figure 5-Figure 6 The winding assembly 3 includes a cylinder 31, and the end of the connecting belt A2 away from the shell 1 is fixedly connected to the outer wall of the cylinder 31, and the connecting belt B4 passes through and is slidably connected to the inner wall of the cylinder 31. The connecting belt B4 is rotated and wound on the inner wall of the cylinder 31, so that the length of the connecting belt B4 can be shortened, so that it can fit firmly on the body of the staff. The end of the connecting belt B4 is fixedly connected to the outer wall of the winding shaft 32. When the winding shaft 32 rotates, it will drive the connecting belt B4 to be wound and wound on its surface, thereby shortening or extending the length of the connecting belt B4. The inner wall of the cylinder 31 is rotatably connected to the winding shaft 32, and the top of the outer wall of the cylinder 31 is rotatably connected to the connecting block 33.
[0038] Reference Figure 5-Figure 6 The inner wall of the connecting block 33 is elastically connected to the limit block 35 through the connecting spring 34. The connecting block 33 is fixedly connected to the rotation center point of the winding shaft 32. When the connecting block 33 rotates, it will drive the winding shaft 32 to rotate synchronously with it, so as to adjust the winding of the connecting belt B4, so that the whole can be firmly fitted on the body of the staff. One end of the connecting spring 34 is fixedly connected to the surface of the limit block 35, and the other end of the connecting spring 34 is fixedly connected to the top of the inner wall of the connecting block 33. The function of the connecting spring 34 is to automatically reset the position of the limit block 35 after it moves, without manual reset. The limit block 35 passes through and is slidably connected to the inner wall of the connecting block 33. A card slot is provided at the top of the outer wall of the cylinder 31. The bottom end of the outer wall of the limit block 35 is carded with the inner wall of the card slot. The card connection between the two allows the connecting block 33 to drive the winding shaft 32 to be fixed at multiple positions of the inner wall of the cylinder 31 to rotate, so that the length of the winding of the connecting belt B4 can be adjusted and fixed.
[0039] Working principle: The staff wears the module on the body by fitting the velvet Velcro on the connecting belt A2 and the hook Velcro on the connecting belt B4 together. The length of the connecting belt B4 can be adjusted through the winding component 3. Specifically, the connecting belt B4 can be rotatably wound in the cylinder 31. The end of the connecting belt B4 is fixedly connected to the winding shaft 32. The winding shaft 32 can rotate in the cylinder 31. The rotating connecting block 33 can drive the winding shaft 32 to rotate, thereby realizing the winding adjustment of the connecting belt B4. The connecting spring 34 in the connecting block 33 can reset the limit block 35. When the limit block 35 is engaged with the top slot of the outer wall of the cylinder 31, the rotation position of the winding shaft 32 can be fixed, thereby fixing the winding length of the connecting belt B4.
[0040] The fan 7 is controlled to rotate by the button on the control panel 5, and the external wind is sucked into the shell 1 and then transported outward from the connection port 6. The filter assembly 9 filters the incoming air, and the new active plate 91 can be inserted from the inner wall of the shell 1. When entering, it squeezes the arc surface of the wedge block 93, so that the wedge block 93 moves downward on the inner wall of the shell 1 and compresses the limit spring 92. When the slot is engaged with the wedge block 93, the position of the active plate 91 is fixed. At this time, because the bottom end of the old active plate 91 is no longer engaged with the wedge block 93, its corresponding push plate 95 will be subject to the elastic action of the reset spring 94 to automatically push the old active plate 91 outward.
[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. An active purification air supply positive pressure module suitable for disposable protective clothing, comprising a housing (1), characterized in that: The outer wall of the shell (1) is provided with a connecting belt A (2), one end of the connecting belt A (2) is provided with a winding assembly (3), the other end of the connecting belt A (2) is detachably mounted with a connecting belt B (4), a control panel (5) is provided on the left side of the top end of the shell (1), a connecting port (6) is fixedly connected to the right side of the top end of the shell (1), a fan (7) is provided on the surface of the shell (1), a baffle plate (8) is rotatably connected to the left outer wall of the shell (1), and a filter assembly (9) is provided on the inner wall of the shell (1), and the filter assembly (9) includes a wedge block (93); The wedge block (93) is elastically connected to the bottom end of the inner wall of the shell (1) via a limit spring (92); the inner side wall of the shell (1) is elastically connected to a push plate (95) via a return spring (94); and the inner wall of the shell (1) is slidably connected to an active plate (91).
2. The active purification air supply positive pressure module suitable for disposable protective clothing according to claim 1, characterized in that: The winding assembly (3) comprises a cylinder (31), the inner wall of the cylinder (31) is rotatably connected to a winding shaft (32), the top end of the outer wall of the cylinder (31) is rotatably connected to a connecting block (33), and the inner wall of the connecting block (33) is elastically connected to a limiting block (35) via a connecting spring (34).
3. The active purification air supply positive pressure module suitable for disposable protective clothing according to claim 1, characterized in that: One end of the limit spring (92) is fixedly connected to the bottom end of the outer wall of the wedge block (93), and the other end of the limit spring (92) is fixedly connected to the bottom end of the inner wall of the housing (1).
4. The active purification air supply positive pressure module suitable for disposable protective clothing according to claim 1, characterized in that: A slot is provided at the bottom end of the outer wall of the active plate (91), the top end of the outer wall of the wedge block (93) is engaged with the inner wall of the slot, and the wedge block (93) is slidably connected to the inner wall of the bottom end of the shell (1).
5. The active purification air supply positive pressure module suitable for disposable protective clothing according to claim 1, characterized in that: One end of the return spring (94) is fixedly connected to the right outer wall of the push plate (95), and the other end of the return spring (94) is fixedly connected to the inner side wall of the housing (1).
6. The active purification air supply positive pressure module suitable for disposable protective clothing according to claim 1, characterized in that: The push plate (95) is slidably connected to the inner side wall of the shell (1), and the left outer wall of the push plate (95) is in contact with the outer wall of the active plate (91).
7. The active purification air supply positive pressure module suitable for disposable protective clothing according to claim 2, characterized in that: The end of the connecting belt A (2) away from the shell (1) is fixedly connected to the outer wall of the cylinder (31), the connecting belt B (4) passes through and is slidably connected to the inner wall of the cylinder (31), and the end of the connecting belt B (4) is fixedly connected to the outer wall of the winding shaft (32).
8. The active purification air supply positive pressure module suitable for disposable protective clothing according to claim 2, characterized in that: The connecting block (33) is fixedly connected to the rotation center point of the winding shaft (32); one end of the connecting spring (34) is fixedly connected to the surface of the limiting block (35); the other end of the connecting spring (34) is fixedly connected to the top end of the inner wall of the connecting block (33); the limiting block (35) penetrates and is slidably connected to the inner wall of the connecting block (33); a slot is provided at the top end of the outer wall of the cylinder (31); and the bottom end of the outer wall of the limiting block (35) is engaged with the inner wall of the slot.