Regulating mechanism of breathing mask and breathing mask

Abstract

The utility model relates to an adjusting mechanism of a breathing mask and the breathing mask, and relates to the technical field of ventilation treatment, the adjusting mechanism of the breathing mask provided by the utility model comprises n adjusting units, and the adjusting units can be adjusted according to the needs of a user. When the breathing mask is worn, one adjusting unit is selected to retract into the next-stage adjusting unit or extend out of the next-stage adjusting unit by applying the force of the corresponding grade, so that the wearing position and / or the tightness degree of the breathing mask are / is adjusted, the better sealing effect between the breathing mask and the face of a user is guaranteed, and the treatment effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to ventilation therapy technical field, especially a kind of adjusting mechanism and respiratory mask of respiratory mask. BACKGROUND

[0002] The existing respiratory mask generally includes gasket, in use, gasket is in close contact with the face of user, to provide gas for user to breathe in use. Due to the individual differences between users, especially the height difference of forehead relative to face of user, different head size, it will cause the problem that gasket is not close enough to the face of user when different face characteristics patients use respiratory mask, and there can be air leakage, affect treatment effect. SUMMARY

[0003] The utility model provides a kind of adjusting mechanism and respiratory mask of respiratory mask, for solving at least one technical problem described above.

[0004] According to the first aspect of the utility model, the utility model provides an adjusting mechanism of respiratory mask, including adjusting unit, the number of the adjusting unit is n, wherein the i th adjusting unit is connected with the i+1 th adjusting unit, and the i+1 th adjusting unit can accommodate the i th adjusting unit;

[0005] The i th adjusting unit is configured to retract into the i+1 th adjusting unit under the action of corresponding level force, or extend from the i+1 th adjusting unit under the action of corresponding level force;

[0006] Wherein, the 1 th adjusting unit and the n th adjusting unit are connected with respiratory mask;

[0007] N is integer, and n≥2;

[0008] I is integer, and 1≤i<n.

[0009] In one embodiment, the adjusting unit is configured to adjust the contact position of forehead pad of respiratory mask with patient's forehead, wherein the 1 th adjusting unit is connected with the forehead pad of respiratory mask, and the n th adjusting unit is connected with the frame of respiratory mask.

[0010] In one embodiment, first connecting part and second connecting part are respectively provided on the adjusting unit, wherein the second connecting part of the i th adjusting unit cooperates with the first connecting part of the i+1 th adjusting unit, so that the i th adjusting unit is retracted into the i+1 th adjusting unit or extended from the i+1 th adjusting unit accordingly.

[0011] In one embodiment, the first connecting part is configured as a groove structure on the side wall of the adjusting unit, and the adjusting unit is further provided with a receiving groove, and the groove structure is in communication with the receiving groove.

[0012] In one embodiment, the groove structure comprises a movable groove and a clamping groove arranged in sequence along the moving direction of the adjusting unit, wherein the movable groove and the clamping groove are arranged in intervals, or

[0013] the clamping groove is in communication with the movable groove and the depth of the clamping groove is greater than the depth of the movable groove.

[0014] In one embodiment, the length of the movable groove in the moving direction of the adjusting unit is greater than the length of the clamping groove in the moving direction of the adjusting unit.

[0015] In one embodiment, the side wall of the clamping groove and / or the movable groove is configured as an inclined side wall towards the receiving groove.

[0016] In one embodiment, the second connecting part is configured as a protrusion on the side wall of the adjusting unit, the end surface of the protrusion is flush with the end surface of the adjusting unit, and the sizes of the protrusions on each adjusting unit are different;

[0017] wherein the protrusion on the side wall of the i th adjusting unit can move in the movable groove on the side wall of the i+1 th adjusting unit; or the protrusion on the side wall of the i th adjusting unit can be connected with the clamping groove on the side wall of the i+1 th adjusting unit.

[0018] In one embodiment, the adjusting unit is provided with an elastic element, and the elastic element is used to adjust the connecting force between the i th adjusting unit and the i+1 th adjusting unit.

[0019] In one embodiment, the axes of the receiving grooves on each adjusting unit coincide with each other.

[0020] In one embodiment, the groove structure is located on one of the side walls of the adjusting unit, or

[0021] the groove structures are respectively located on the opposite two side walls of the adjusting unit and are symmetrically arranged with respect to the adjusting unit.

[0022] In one embodiment, the protrusion is located on one of the side walls of the adjusting unit, or

[0023] the protrusions are respectively located on the opposite two side walls of the adjusting unit and are symmetrically arranged with respect to the adjusting unit.

[0024] In one embodiment, the adjusting unit is configured as a protrusion and a recess on a headgear tube of the respiratory mask, the recess accommodating the protrusion, one of the protrusion and the recess being provided with a clamping portion and the other being provided with a groove portion matched with the clamping portion.

[0025] According to a second aspect of the present application, the present application provides a respiratory mask, which is a full-face mask, a nasal mask or a mouth-nose mask, and comprises the adjusting mechanism as described above.

[0026] In one embodiment, the respiratory mask further comprises a frame and a forehead pad, the frame being connected with the forehead pad through the adjusting mechanism, wherein the nth adjusting unit in the adjusting mechanism is connected with the frame, and the first adjusting unit in the adjusting mechanism is connected with the forehead pad.

[0027] In one embodiment, the headgear tube comprises a first headgear tube and a second headgear tube connected with each other, and the adjusting unit is arranged on the first headgear tube and the second headgear tube respectively.

[0028] In one embodiment, the respiratory mask further comprises a gasket and an elbow, the elbow being in communication with a cavity on the inner side of the gasket, or the elbow being in communication with the headgear tube,

[0029] The frame is connected with the outer side of the gasket at the end away from the forehead pad.

[0030] In one embodiment, the respiratory mask further comprises a headgear, and the forehead pad is further provided with a headgear hole for the headgear to pass through.

[0031] In one embodiment, the frame or the elbow is provided with an air tube socket in communication with the cavity on the inner side of the gasket, and the air tube socket is provided with a pluggable plug.

[0032] Compared with the prior art, the present application has the advantage that one of the adjusting units can be retracted into the next adjusting unit or extended from the next adjusting unit by exerting a corresponding level of force according to the user's own needs, so as to adjust the position and / or tightness of the respiratory mask, so as to ensure better sealing effect between the respiratory mask and the user's face, and to improve the treatment effect. BRIEF DESCRIPTION OF DRAWINGS

[0033] The present application will be described in more detail below based on the embodiments and with reference to the drawings.

[0034] Figure 1 is a schematic diagram of the three-dimensional structure of the adjusting mechanism installed on the respiratory mask in Embodiment 1 of the present application;

[0035] Figure 2 is the sectional view of the adjusting mechanism installed on the breathing mask in embodiment 1 of the utility model;

[0036] Figure 3a is the plan view of the adjusting mechanism installed on the breathing mask in embodiment 1 of the utility model;

[0037] Figure 3b is Figure 3a the enlarged view at A;

[0038] Figure 4 is the three-dimensional structure schematic view of one adjusting unit in embodiment 1 of the utility model;

[0039] Figure 5 is the sectional view of one adjusting unit in embodiment 1 of the utility model;

[0040] Figure 6 is the three-dimensional structure schematic view of the forehead pad in embodiment 1 of the utility model;

[0041] Figure 7 is the sectional view of the forehead pad in embodiment 1 of the utility model;

[0042] Figure 8 is the three-dimensional structure schematic view of the breathing mask in embodiment 2 of the utility model;

[0043] Figure 9 is Figure 8 the three-dimensional structure schematic view of the headband pipe shown in the figure;

[0044] Figure 10 is Figure 8 the exploded view of the headband pipe shown in the figure;

[0045] Figure 11 is Figure 10 the three-dimensional structure schematic view of the first headband pipe.

[0046] Reference signs:

[0047] 1, adjusting mechanism; 3, breathing mask;

[0048] 11, first adjusting unit; 12, second adjusting unit; 13, third adjusting unit; 14, fourth adjusting unit;

[0049] 101, clamping groove; 102, movable slot; 103, protrusion; 104, accommodating groove;

[0050] 31, frame; 32, gasket; 33, elbow; 34, connecting head; 35, headband pipe; 36, headband; 37, forehead pad; 38, buckle; 39, plug portion;

[0051] 351. First headband tube; 352. Second headband tube; 3511. Engaging part; 3512. Protrusion; 371. Headband hole; 372. Support body; 373. Flexible pad. Detailed Implementation

[0052] The present invention will be further described below with reference to the accompanying drawings.

[0053] This invention provides an adjustment mechanism 1 for a breathing mask 3 and a breathing mask, wherein the adjustment mechanism 1 can adjust the position and / or tightness of the breathing mask 3. For example, the adjustment mechanism 1 can adjust the position of the forehead (i.e., the contact position of the forehead pad 37 of the breathing mask 3 with the patient's forehead), or adjust the tightness of the breathing mask 3 according to different users' head sizes.

[0054] Example 1

[0055] like Figures 1-7 As shown, according to a first aspect of this utility model, the present utility model provides an adjustment mechanism 1 for a breathing mask 3. When the breathing mask 3 is worn, the forehead pad 37 needs to contact the user's forehead, and the liner 32 needs to fit against the user's face to form a seal. If the contact position between the forehead pad 37 and the forehead is not appropriate, the seal between the liner 32 and the face will be poor, resulting in air leakage. The adjustment mechanism 1 of this utility model can adjust the position of the forehead pad 37 of the breathing mask 3 and the angle of contact between the liner 32 of the breathing mask 3 and the user's face according to the user's needs, thereby achieving a better seal between the breathing mask 3 and the user's face and improving the treatment effect.

[0056] Specifically, such as Figure 1 , Figure 2 and Figure 3a As shown, the adjustment mechanism 1 includes adjustment units, the number of which is n, where n is an integer and n≥2. That is, the adjustment mechanism 1 includes at least two adjustment units. Figure 2 As shown, the first adjustment unit 11 (i.e., the first-level adjustment unit) in the adjustment unit is connected to the forehead pad 37 of the breathing mask 3, and the nth adjustment unit (i.e., the final adjustment unit) is connected to the frame 31 of the breathing mask 3.

[0057] The i-th regulating unit is connected to the (i+1)-th regulating unit, and the (i+1)-th regulating unit can accommodate the i-th regulating unit, where i is an integer and 1 ≤ i < n. In other words, the next-level regulating unit can accommodate the previous-level regulating unit, meaning that the n regulating units are nested sequentially to form a multi-level regulating mechanism.

[0058] The i-th adjusting unit is configured to be able to retract into the i+1-th adjusting unit under the action of a corresponding level of force, or to extend out of the i+1-th adjusting unit under the action of a corresponding level of force. For example, see Figure 2 , Figure 2 It is shown that the adjusting mechanism 1 includes 4 adjusting units, i.e. n = 4 as described above, the 4 adjusting units are respectively the 1st adjusting unit 11, the 2nd adjusting unit 12, the 3rd adjusting unit 13 and the 4th adjusting unit 14, wherein the 1st adjusting unit 11 is the first-stage adjusting unit, which is connected with the forehead pad 37 of the respiratory mask 3; the 4th adjusting unit 14 is the last-stage adjusting unit, which is connected with the frame 31 of the respiratory mask 3.

[0059] As shown in Figure 2 , the 1st adjusting unit 11 is able to retract into the 2nd adjusting unit 12 under the action of a first level of force, or to extend out of the 2nd adjusting unit 12 under the action of a first level of force; the 2nd adjusting unit 12 is able to retract into the 3rd adjusting unit 13 under the action of a second level of force, or to extend out of the 3rd adjusting unit 13 under the action of a second level of force; the 3rd adjusting unit 13 is able to retract into the 4th adjusting unit 14 under the action of a third level of force, or to extend out of the 4th adjusting unit 14 under the action of a third level of force.

[0060] Among them, the first level of force corresponds to the fitting force between the 1st adjusting unit 11 and the 2nd adjusting unit 12, the second level of force corresponds to the fitting force between the 2nd adjusting unit 12 and the 3rd adjusting unit 13, and the third level of force corresponds to the fitting force between the 3rd adjusting unit 13 and the 4th adjusting unit 14. That is, the first level of force can only make the 1st adjusting unit 11 extend or retract, and is not enough to make other adjusting units extend or retract; similarly, the second level of force can only make the 2nd adjusting unit 12 extend or retract, and is not enough to make other adjusting units extend or retract.

[0061] When each adjusting unit is in the extended state, it can be understood that the forehead pad 37 is farthest from the frame 31, and when each adjusting unit is in the retracted state, the forehead pad 37 is closest to the frame 31, so that each adjusting unit is extended or retracted one by one, which can achieve the purpose of adjusting the position of the forehead pad 37, i.e. changing the contact force of the forehead pad 37 with the user's forehead. For example, when contraction adjustment is needed, a first level of force is applied to the 1st adjusting unit 11, and then the 1st adjusting unit 11 retracts into the 2nd adjusting unit 12, when the force reaches the next level of force, the 2nd adjusting unit 12 retracts into the 3rd adjusting unit 13, and so on, until all the adjusting units are in the retracted state; vice versa.

[0062] Preferably, the distance range of the headrest 37 that can be adjusted by the adjusting mechanism 1 is 30mm-50mm, thus the number of adjusting units can be set as 2-6. Among them, when the number of adjusting units is 2, the first adjusting unit is directly connected with the last adjusting unit.

[0063] As shown in Figure 2 , in order to ensure the stability between each adjusting unit, each adjusting unit can be set as an integrated structure, that is, the i th adjusting unit can be moved in the i+1 th adjusting unit, but cannot be taken out of the i+1 th adjusting unit.

[0064] The first connecting part and the second connecting part are respectively arranged on the adjusting unit, wherein the second connecting part of the i th adjusting unit cooperates with the first connecting part of the i+1 th adjusting unit, so that the i th adjusting unit is retracted into the i+1 th adjusting unit or extended from the i+1 th adjusting unit.

[0065] As shown in Figure 4 and Figure 5 , and please refer to Fig. 3, taking the second adjusting unit 12 and the third adjusting unit 13 as an example for description.

[0066] As shown in Figure 4 , the second adjusting unit 12 is provided with a first connecting part and a second connecting part, wherein the first connecting part is configured as a groove structure on the side wall of the second adjusting unit 12, for example, the groove structure can include a movable groove 102 and a clamping groove 101, which are arranged in sequence along the moving direction of the second adjusting unit 12, that is, the clamping groove 101 is closer to the upper adjusting unit of the second adjusting unit 12, and the movable groove 102 is closer to the lower adjusting unit of the second adjusting unit 12. The second adjusting unit 12 is also provided with a receiving groove 104, and the clamping groove 101 and the movable groove 102 are in communication with the receiving groove 104.

[0067] The second connecting part is configured as a protrusion 103 on the side wall of the second adjusting unit 12, and the end face of the protrusion 103 is flush with the end face of the second adjusting unit 12.

[0068] The third adjusting unit 13 has the same structure as the second adjusting unit 12, but the size (such as length, width, height, etc.) is different. Specifically, the third adjusting unit 13 is set to be larger, so that the receiving groove 104 of the third adjusting unit 13 can accommodate the second adjusting unit 12, that is, the second adjusting unit 12 is in the retracted state. Similarly, the second adjusting unit 12 is set to be larger than the first adjusting unit 11, so that the receiving groove 104 of the second adjusting unit 12 can accommodate the first adjusting unit 11.

[0069] It can be understood that, due to the different sizes (e.g. length, width, height, etc.) of the adjusting units, the sizes of the clamping slots 101, the movable slots 102 and the protrusions 103 on the adjusting units are also set to be different, so that the connecting forces between the adjusting units are different.

[0070] For example, the connecting force Fl between the first adjusting unit 11 and the second adjusting unit 12 is less than the connecting force F2 between the second adjusting unit 12 and the third adjusting unit 13, and the connecting force F2 between the second adjusting unit 12 and the third adjusting unit 13 is less than the connecting force F3 between the third adjusting unit 13 and the fourth adjusting unit 14. Therefore, when a first level of force (which is greater than Fl and less than F2) is applied to the adjusting units, the first adjusting unit 11 can be extended or retracted from the second adjusting unit 12, when a second level of force (which is greater than F2 and less than F3) is applied to the adjusting units, the second adjusting unit 12 can be extended or retracted from the third adjusting unit 13, and when a third level of force (which is greater than F3) is applied to the adjusting units, the third adjusting unit 13 can be extended or retracted from the fourth adjusting unit 14.

[0071] In other embodiments, the connecting forces between the adjusting units can be adjusted by elastic elements. For example, an elastic element can be provided in the adjusting units, and the elastic element is used to adjust the connecting force between the ith adjusting unit and the (i+1)th adjusting unit. The elastic element can be a spring, which can be provided on the protrusion 103 or other suitable parts of the adjusting units, and the wire diameter, material, etc. of the spring in each adjusting unit can be set to be different, so that different connecting forces between the adjusting units can be achieved. In this embodiment, although the sizes (e.g. length, width, height, etc.) of the adjusting units are different, the sizes of the clamping slots 101, the movable slots 102 and the protrusions 103 on the adjusting units can be set to be the same, because in this embodiment the different connecting forces can be achieved by the elastic elements.

[0072] When the protrusion 103 on the second adjusting unit 12 extends into the movable slot 102 from the accommodating slot 104 of the third adjusting unit 13, the second adjusting unit 12 is in the retracted state, i.e. the second adjusting unit 12 can be moved in the third adjusting unit 13 to the third adjusting unit 13 completely accommodating the second adjusting unit 12. Conversely, when the protrusion 103 on the second adjusting unit 12 moves in the movable slot 102 in the opposite direction and moves to be clamped into the clamping slot 101, the second adjusting unit 12 is in the extended state, and the second adjusting unit 12 can be fixed in the extended state by the mutual clamping of the clamping slot 101 and the protrusion 103.

[0073] Therefore, it can be understood that the length of the movable groove 102 (i.e., the dimension in the direction of movement of the adjustment unit) is greater than the length of the slot 101, that is, the protrusion 103 of the upper-level adjustment unit can move in the movable groove 102 of the lower-level adjustment unit.

[0074] like Figure 3b As shown, all adjustment units are in the extended state; that is, the first adjustment unit 11 extends from the second adjustment unit 12, the second adjustment unit 12 extends from the third adjustment unit 13, and the third adjustment unit 13 extends from the fourth adjustment unit 14. Understandably, Figure 3b The maximum adjustment level of the forehead pad 37 of the breathing mask 3 with four adjustment units is shown. The minimum adjustment level of the forehead pad 37 of the breathing mask 3 is shown if all adjustment units are in the retracted state.

[0075] like Figure 3b As shown, when all adjustment units are in the extended state, the protrusion 103 of the first adjustment unit 11 engages with the slot 101 of the second adjustment unit 12, the protrusion 103 of the second adjustment unit 12 engages with the slot 101 of the third adjustment unit 13, and the protrusion 103 of the third adjustment unit 13 engages with the slot 101 of the fourth adjustment unit 14. Furthermore, the axes of the receiving slots 104 of each adjustment unit coincide. Therefore, when each adjustment unit retracts or extends, it can move along a straight path, avoiding skewness between the adjustment units.

[0076] like Figure 4 and Figure 5 As shown, the active slot 102 and the card slot 101 are spaced apart and are not connected.

[0077] Understandably, in another embodiment, the movable groove 102 and the locking groove 101 can be configured to be interconnected, and the depth of the locking groove 101 can be set to be greater than the depth of the movable groove 102. In this case, the protrusion 103 is correspondingly configured as a retractable protrusion, which can move in a compressed state in the movable groove 102, and when it moves into the locking groove 101, since the depth of the locking groove 101 is greater, the protrusion 103 extends into the locking groove 101 in an extended state and engages with the locking groove 101 to fix the second adjustment unit 12 in its extended state. It should be noted that in this embodiment, the movable groove 102 and the locking groove 101 do not penetrate the side wall of the adjustment unit.

[0078] And in Figure 4 and Figure 5 In the embodiment shown, the movable groove 102 and the slot 101 can penetrate through the side wall of the adjustment unit.

[0079] like Figure 6 and Figure 7As shown, one end of the first adjusting unit 11 is fixedly connected with the forehead pad 37, and the protrusion 103 on the side wall of the first adjusting unit 11 can be engaged with the clamping slot 101 of the second adjusting unit 12, so that the first adjusting unit 11 is kept in the state of extending out of the second adjusting unit 12; or the protrusion 103 on the side wall of the first adjusting unit 11 can also be matched with the movable slot 102 of the second adjusting unit 12, so that the first adjusting unit 11 is retracted into the second adjusting unit 12.

[0080] As shown in FIG. 1, Figure 3a and Figure 7 As shown, the forehead pad 37 includes a rigid support body 372 and a flexible soft pad 373 located inside the support body 372, and the flexible soft pad 373 is used to contact the forehead of the user and can be made of flexible materials such as silica gel, etc., to improve the comfort of use. The first adjusting unit 11 can be integrally formed with the support body 372.

[0081] As shown in FIG. 1, Figure 2 The fourth adjusting unit 14 (i.e., the last-stage adjusting unit) can be integrally formed with the frame 31.

[0082] It can be understood that, since the first adjusting unit 11 is the first-stage adjusting unit, it does not accommodate other adjusting units inside, so the first adjusting unit 11 can not be provided with the accommodating slot 104, and the first adjusting unit 11 also does not need to be provided with the movable slot 102 and the clamping slot 101. However, for the consideration of processing convenience, the first adjusting unit 11 can also be provided with the accommodating slot 104, the movable slot 102 and the clamping slot 101 similar to the structures of other adjusting units.

[0083] Similarly, since the nth adjusting unit is the last-stage adjusting unit, it does not match with the movable slot 102 or the clamping slot 101 of other adjusting units, so the protrusion 103 can not be provided on the nth adjusting unit.

[0084] Further, in order to facilitate the protrusion 103 of the adjusting unit (the ith adjusting unit) to smoothly slide into the movable slot 102 of the clamping slot 101 of the next-stage adjusting unit (the (i+1)th adjusting unit) or slide into the clamping slot 101 of the movable slot 102 of the next-stage adjusting unit (the (i+1)th adjusting unit), the side wall of the clamping slot 101 and / or the movable slot 102 is configured as an inclined side wall towards the accommodating slot 104.

[0085] For example, Figure 4 the upper side wall of the clamping slot 101 is configured to be upwardly inclined towards the accommodating slot 104, Figure 4The lower sidewall of the slot 101 shown is configured to slope downward toward the receiving slot 104, so that when the adjustment unit (the i-th adjustment unit) is subjected to a force of a corresponding level, the protrusion 103 on it can more easily disengage from the slot 101 of the next-level adjustment unit (the (i+1)-th adjustment unit) and more easily enter the movable slot 102 of the next-level adjustment unit (the i-th adjustment unit), so as to ensure that the adjustment unit (the i-th adjustment unit) can retract into the next-level adjustment unit (the (i+1)-th adjustment unit) more smoothly and easily.

[0086] like Figure 4 and Figure 5 As shown, an example is illustrated where both the slot 101 and the movable slot 102 are rectangular. Conversely, the slot 101 and the movable slot 102 could also be elongated, and accordingly, the protrusion 103 would be constructed as a strip-shaped or block-shaped structure. Alternatively, the slot 101 and the movable slot 102 could be in the form of a dovetail groove; and correspondingly, the protrusion 103 could be constructed as an "I"-shaped structure.

[0087] Alternatively, the movable groove 102 can be constructed as a slide rail, and the protrusion 103 can be constructed as a slider accordingly. In this embodiment, the movable groove 102 can be disposed on the inner wall of the receiving groove 104, and the protrusion 103 can be disposed on the outer wall of the receiving groove 104; or conversely, the movable groove 102 can be disposed on the outer wall of the receiving groove 104, and the protrusion 103 can be disposed on the inner wall of the receiving groove 104.

[0088] Furthermore, when the adjusting unit (the i-th adjusting unit) retracts into the next-level adjusting unit (the (i+1)-th adjusting unit), to ensure it will not accidentally detach from the next-level adjusting unit (the (i+1)-th adjusting unit) and to ensure safety during transportation, a rod can be provided at the bottom of the receiving groove 104, and a slot can be provided at the end face of the adjusting unit, with the diameter of the slot slightly smaller than the diameter of the rod. When the i-th adjusting unit retracts into the (i+1)-th adjusting unit, the rod in the receiving groove 104 of the (i+1)-th adjusting unit can be inserted into the slot of the i-th adjusting unit to ensure a certain connection force between them, making it difficult for them to detach. When the i-th adjusting unit extends from the (i+1)-th adjusting unit, a force of a corresponding level needs to be applied, which can overcome the connection force between the rod and the slot. Therefore, the connection between the rod and the slot will not affect the extended state of the adjusting unit.

[0089] In some embodiments, the slot structures (slot 101 and movable slot 102) are located on one of the side walls of the adjustment unit, and correspondingly, the protrusion 103 is also located on the same side wall of the adjustment unit.

[0090] In other implementations, such as Figure 5As shown, the slot structures (slot 101 and movable slot 102) are located on two opposite side walls of the adjustment unit and are symmetrically arranged about the adjustment unit. That is, slot 101 and movable slot 102 are provided on both the left and right sides of the adjustment unit. Correspondingly, protrusions 103 are also located on two opposite side walls of the adjustment unit and are symmetrically arranged about the adjustment unit to ensure that the force on both sides of the adjustment unit is uniform.

[0091] Example 2

[0092] like Figures 8-11 As shown, according to a second aspect of the present invention, the present invention provides an adjustment mechanism 1 for a breathing mask 3. The adjustment mechanism 1 can be configured, for example, as a protrusion 3512 and a recess (not shown) on a headband tube 35, with the recess accommodating the protrusion 3512. By retracting the protrusion 3512 into the recess under the action of a corresponding level of force, or by extending the protrusion 3512 out of the recess under the action of a corresponding level of force, the length of the headband tube 35 can be adjusted, thereby adjusting the tightness of the breathing mask 3.

[0093] Specifically, such as Figure 9 , Figure 10 and Figure 11 As shown, the headband tube 35 includes a first headband tube 351 and a second headband tube 352. One of the first headband tube 351 and the second headband tube 352 is provided with a protrusion 3512, and the other is provided with a recess. For example, the first headband tube 351 is provided with a protrusion 3512, which extends along the extension direction of the first headband tube 351, but is smaller than the diameter of the first headband tube 351; the end of the second headband tube 352 is provided with a recess, which also extends along the extension direction of the second headband tube 352.

[0094] The protrusion 3512 of the first head tube 351 can be inserted into the recess of the second head tube 352, so that the first head tube 351 can be connected to the second head tube 352.

[0095] Further, one of the protrusion 3512 and the recess is provided with a plurality of engaging portions 3511, and the other is provided with a plurality of grooves (not shown). For example, the outer wall of the protrusion 3512 is provided with a plurality of engaging portions 3511, and the inner wall of the recess is provided with a plurality of grooves. Under the action of a corresponding level of force, the protrusion 3512 is inserted into the recess by a certain depth, and one or more engaging portions 3511 on the protrusion 3512 are connected with the corresponding one or more grooves, so that the length of the first headband tube 351 and the second headband tube 352 is reduced; or under the action of a corresponding level of force, the protrusion 3512 is separated from the recess by a certain depth, and one or more engaging portions 3511 on the protrusion 3512 are connected with the corresponding one or more grooves, so that the length of the first headband tube 351 and the second headband tube 352 is increased.

[0096] As shown in Figure 11 , a plurality of engaging portions 3511 are sequentially arranged on the first headband tube 351, and the plurality of engaging portions 3511 have the same structural form, for example, are all configured in the form of protrusions. The plurality of engaging portions 3511 can have different heights, lengths or widths, for example, the lengths of the engaging portions 3511 gradually decrease along the direction close to the second headband tube 352, etc. In use, different engaging portions can be matched with different grooves according to different facial features of the user, so that the first headband tube 351 and the second headband tube 352 are connected at different connection positions, and the length of the headband tube 35 formed can be adjusted according to the needs of the user himself, so that the respiratory mask 3 can better fit the face of the user, not only making the wearing more comfortable, but also improving the sealing performance, so as to achieve a better treatment effect.

[0097] Embodiment 3

[0098] According to a third aspect of the present application, the present application provides a respiratory mask 3, which is a full-face mask, a nasal mask or a mouth-nose mask.

[0099] Specifically, as shown in Figure 1 , the respiratory mask 3 comprises a frame 31, a forehead pad 37 and the adjusting mechanism 1 described in the above embodiments, and the frame 31 is connected with the forehead pad 37 through the adjusting mechanism 1. Among them, the nth adjusting unit in the adjusting mechanism is connected with the frame 31, and the first adjusting unit in the adjusting mechanism is connected with the forehead pad 37.

[0100] As shown in Figure 1As shown, the breathing mask 3 further comprises a cushion 32 and an elbow 33, the inner side of the cushion 32 is provided with a chamber, the elbow 33 is communicated with the chamber in the inner side of the cushion 32, and the other end of the elbow 33 is further connected with a connector 34, which is used for being connected with the flexible tube of the gas generator. When the breathing mask 3 is worn on the face of the user, the cushion 32 is sealed with the face of the user, and the gas generator can provide gas into the chamber of the cushion 32 through the elbow 33 for the user to breathe.

[0101] The end of the frame 31 away from the forehead pad 37 is connected with the outer side of the cushion 32, as shown in Figure 1 As shown, the elbow 33 can pass through the frame 31 and be communicated with the chamber in the inner side of the cushion 32. The elbow 33 can be rotatably connected with the frame 31, for example, so that the angle between the elbow 33 and the cushion 32 can be adjusted, thereby being more convenient for use.

[0102] The breathing mask 3 further comprises a headband, as shown in Figure 6 As shown, the forehead pad 37 is provided with a headband hole 371 for the headband to pass through, and the breathing mask 3 can be fixed on the face of the user through the headband. Figure 1 As shown, the headband of the breathing mask 3 can be, for example, refer to Figure 8 As shown, the structure form of the headband 36 of the breathing mask 3.

[0103] In order to facilitate the measurement of the pressure in the chamber or the input of oxygen and anesthetic gas, a gas tube socket is usually arranged on the frame 31 or the elbow 33, which can be used as an interface of gas (such as oxygen, anesthetic gas, etc.) or an interface for measuring pressure. As shown in Figure 1 As shown, the frame 31 is provided with a gas tube socket, which is communicated with the chamber in the inner side of the cushion 32, and the gas tube socket is provided with a plug 39 which can be inserted and removed.

[0104] When it is not necessary to measure the pressure in the chamber or not to input oxygen, the plug 39 is inserted and plugs the gas tube socket, so as to ensure the sealed environment in the chamber of the breathing mask 3. When it is necessary to measure the pressure in the chamber or to input oxygen, the plug 39 is pulled out of the gas tube socket, and the plug 39 is inserted and plugs the gas tube socket to measure the pressure in the chamber or to input oxygen and anesthetic gas.

[0105] Embodiment 4

[0106] According to the fourth aspect of the present application, the present application provides a breathing mask 3, which is a full-face mask, a nasal mask or a mouth-nose mask.

[0107] Specifically, as shown in Figure 8As shown, the breathing mask 3 comprises a cushion 32, an elbow 33, headbands 36, headband tubes 35, and the adjusting mechanism 1 described in the above embodiments, the headband tubes 35 are connected to the left and right sides of the cushion 32 respectively, two ends of the headbands 36 are connected to the left and right headband tubes 35 respectively, and the other two ends of the headbands 36 are connected to the left and right sides of the cushion 32 through buckles 38 respectively, so as to fix the cushion 32 and the headband tubes 35. The headband tubes 35 can be symmetrically arranged relative to the cushion 32.

[0108] The elbow 33 is connected to the headband tube 35 at a position corresponding to the top of the user's head, the elbow 33 is in communication with the headband tube 35, and the other end of the elbow 33 is further connected to a connector 34, which is used to be connected to a flexible tube of a gas generator. When the breathing mask 3 is worn on the user's face, the cushion 32 is sealed with the user's face, and the gas generator can provide gas to the headband tube 35 and the cavity of the cushion 32 through the elbow 33 for the user to breathe.

[0109] Specifically, as shown in Figure 9 , Figure 10 and Figure 11 , the headband tube 35 comprises a first headband tube 351 and a second headband tube 352 connected to each other, and the first headband tube 351 and the second headband tube 352 can be arranged as described above.

[0110] Since the length of the headband tube 35 can be adjusted accordingly, it is more widely applicable to a wider range of people, so there is no need to customize headband tubes 35 of different sizes according to different users, thereby reducing the cost of the headband tube 35 and the breathing mask, and improving the convenience of its application.

[0111] The breathing mask 3 of the utility model can also comprise other components and parts in the prior art for realizing its functions.

[0112] Although the utility model has been described with reference to the preferred embodiments, various improvements can be made and equivalent components can be replaced without departing from the scope of the utility model. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An adjustment mechanism for a respiratory mask, characterized by, The adjusting units comprise n adjusting units, wherein the i-th adjusting unit is connected with the i+1-th adjusting unit, and the i+1-th adjusting unit can accommodate the i-th adjusting unit; The i-th adjusting unit is configured to retract into the i+1-th adjusting unit under the action of a corresponding level of force, or to extend out of the i+1-th adjusting unit under the action of a corresponding level of force; The first adjusting unit and the n-th adjusting unit are both connected with the respiratory mask; n is an integer, and n≥2; i is an integer, and 1≤i<n.

2. The adjustment mechanism of claim 1, wherein, The adjusting units are configured to adjust the contact position of the forehead pad of the respiratory mask with the forehead of the patient, wherein the first adjusting unit is connected with the forehead pad of the respiratory mask, and the n-th adjusting unit is connected with the frame of the respiratory mask.

3. The adjustment mechanism of claim 2, wherein, The adjusting units are respectively provided with first connecting portions and second connecting portions, wherein the second connecting portion of the i-th adjusting unit cooperates with the first connecting portion of the i+1-th adjusting unit, so that the i-th adjusting unit is correspondingly retracted into or extended out of the i+1-th adjusting unit.

4. The adjustment mechanism of claim 3, wherein, The first connecting portion is configured as a groove structure on the side wall of the adjusting unit, and the adjusting unit is further provided with an accommodating groove, and the groove structure and the accommodating groove are in communication.

5. The adjustment mechanism of claim 4, wherein, The groove structure comprises a movable groove and a clamping groove arranged in sequence along the moving direction of the adjusting unit, wherein the movable groove and the clamping groove are arranged in a spaced manner, or The clamping groove is in communication with the movable groove, and the depth of the clamping groove is greater than the depth of the movable groove.

6. The adjustment mechanism of claim 5, wherein, The length of the movable groove in the moving direction of the adjusting unit is greater than the length of the clamping groove in the moving direction of the adjusting unit.

7. Adjusting mechanism according to claim 5 or 6, characterized in that The side wall of the clamping groove and / or the movable groove is configured as an inclined side wall towards the accommodating groove.

8. Adjusting mechanism according to claim 5 or 6, characterized in that The second connecting portion is configured as a protrusion on the side wall of the adjusting unit, the end surface of the protrusion is flush with the end surface of the adjusting unit, and the sizes of the protrusions on each adjusting unit are different; The protrusion on the side wall of the i-th adjusting unit can move in the movable groove on the side wall of the i+1-th adjusting unit; or the protrusion on the side wall of the i-th adjusting unit can be connected with the clamping groove on the side wall of the i+1-th adjusting unit.

9. The adjustment mechanism of claim 8, wherein, The adjusting units are provided with elastic elements for adjusting the connecting force between the i-th adjusting unit and the i+1-th adjusting unit.

10. The adjustment mechanism according to any one of claims 4-6, characterized in that, The axes of the accommodating grooves on each adjusting unit coincide with each other.

11. The adjustment mechanism according to any one of claims 4-6, characterized in that The groove structure is located on one of the side walls of the adjusting unit, or The groove structure is respectively located on the opposite two side walls of the adjusting unit, and is symmetrically arranged about the adjusting unit.

12. The adjustment mechanism of claim 8, wherein, The protrusion is located on one of the side walls of the adjusting unit, or The protrusions are respectively located on the opposite two side walls of the adjusting unit, and are symmetrically arranged about the adjusting unit.

13. The adjustment mechanism of claim 1, wherein, The adjusting units are configured as a protruding portion and a recessed portion on the headband tube of the respiratory mask, the recessed portion accommodates the protruding portion, one of the protruding portion and the recessed portion is provided with a clamping portion, and the other is provided with a groove portion matched with the clamping portion.

14. A respiratory mask characterized by, The adjustment mechanism according to any one of claims 1-11, further comprising a headgear tube comprising a first headgear tube and a second headgear tube connected to each other, the adjustment unit being provided on the first headgear tube and the second headgear tube, respectively.

Images