Buckle penetrating equipment for head bandage of breathing mask

Abstract

The utility model discloses breathing mask head bandage threading equipment, which belongs to the field of threading equipment.The breathing mask head bandage threading equipment comprises a mask body and a mounting block, straps are fixedly connected to two sides of the mask body, a baffle is slidably connected to the inner wall of the mounting block, and a first spring is fixedly connected to one side of the baffle. After the inserting block is inserted into the mounting block, the stress block can be blocked in the mounting block by the baffle, so that the clamping block is prevented from being separated from the interior of the inserting groove after the sliding rod slides, and through the design, the inserting block can be stably limited and fixed after being inserted into the mounting block; in addition, a worker can rotate a handle to drive a rotating shaft to rotate, so that the number of turns of a bridle wound on the outer wall of the rotating shaft is changed, the degree of tightness of the bridle in the wearing process is changed, and through the design, the comfort degree of the mask body in the wearing process can be improved.

Description

Technical Field

[0001] This utility model relates to the field of buckle-on devices, and more specifically, to a head strap buckle-on device for a breathing mask. Background Technology

[0002] When wearing a breathing mask, the buckles on both sides need to be secured.

[0003] Chinese Patent Publication No. CN212814815U discloses a fastening strap and a wearable device. This patented fastening strap and wearable device include: a first strap body; a second strap body; a first fastening member connected to the first strap body, the first fastening member having a protrusion; and a second fastening member rotatably connected to the first fastening member. At least a portion of the structure of the second strap body can be located between the first and second fastening members. The second fastening member and the first fastening member have a fastened state and an open state. In the fastened state, the protrusion and the second fastening member respectively abut against both sides of the second strap body to fix the second strap body. In the open state, the second strap body can move relative to the second fastening member. In the fastened state, the protrusion and the pressure plate respectively press against both sides of the second strap body, thereby fixing the second strap body, and the size of the receiving space formed by the first and second strap bodies is fixed.

[0004] However, in the aforementioned patents, the lack of a stable limiting mechanism after the fastening is completed results in a lack of stability, a certain risk of falling off, inconvenience, and certain limitations in use. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] In view of the problems existing in the prior art, the purpose of this utility model is to provide a breathing mask head strap fastening device to solve the problems mentioned in the background art.

[0007] 2. Technical Solution

[0008] To solve the above problems, the present invention adopts the following technical solution.

[0009] A breathing mask head strap fastening device includes a mask body and a mounting block. Straps are fixedly connected to both sides of the mask body. A baffle is slidably connected to the inner wall of the mounting block. A No. 1 spring is fixedly connected to one side of the baffle. The end of the No. 1 spring away from the baffle is fixedly connected to the inside of the mounting block. A sliding rod is slidably connected to the inside of the mounting block.

[0010] Furthermore, a force-bearing block and a locking block are fixedly connected to each of the two ends of the sliding rod.

[0011] Furthermore, a second spring is sleeved on the outer wall of the sliding rod. The two ends of the second spring are fixedly connected to the inside of the mounting block and one side of the force-bearing block, respectively. Chamfers are provided on one side of the force-bearing block and both sides of the locking block.

[0012] Furthermore, the mounting block has a sliding connection to a plug-in block inside, and the plug-in block has a slot on its outside, with the locking block engaging inside the slot.

[0013] Furthermore, a connecting block is fixedly connected to one side of the plug-in block.

[0014] Furthermore, a fixed frame is fixedly connected to the middle of one side of the connecting block, and a rotating shaft is rotatably connected inside the fixed frame.

[0015] Furthermore, a handle and a ratchet are fixedly connected to each of the two ends of the rotating shaft, with the handle located outside the fixed frame.

[0016] Furthermore, one end of one of the straps is fixedly connected to the outside of the rotating shaft, and one end of the other strap is fixedly connected to one side of the mounting block. Both straps are fixedly connected to one side of the mask body.

[0017] Furthermore, a limiting block is rotatably connected inside the fixed frame, and one end of the limiting block is engaged with the outer wall of the ratchet.

[0018] Furthermore, a No. 3 spring is rotatably connected to one side of the limiting block, and the end of the No. 3 spring away from the limiting block is rotatably connected to the inside of the fixed frame.

[0019] 3. Beneficial effects

[0020] Compared with existing technologies, the advantages of this utility model are:

[0021] (1) In this scheme, when the plug-in block is inserted into the interior of the mounting block, the baffle can seal the force block inside the mounting block, thereby preventing the sliding rod from sliding out of the slot. Through this design, the plug-in block can be stably limited and fixed after being inserted into the interior of the mounting block, thereby improving the stability of the plug-in block after being inserted into the interior of the mounting block.

[0022] (2) In this solution, the staff can turn the handle to drive the rotating shaft to rotate, thereby changing the number of loops of the strap wrapped around the outer wall of the rotating shaft, thereby changing the tightness of the strap when wearing it. Through this design, the comfort of wearing the mask body can be improved.

[0023] (3) In this solution, when the staff stops turning the handle, the limit block will effectively limit the ratchet, so that the adjusted belt length will not change easily. This design improves the stability of the belt after adjustment. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0025] Figure 2 This is a schematic diagram showing the connection relationship between the mounting block and the plug-in block in this utility model;

[0026] Figure 3 This is a schematic diagram showing the internal structure of the mounting block and the connection relationship between the baffle and the mounting block in this utility model;

[0027] Figure 4 This is a schematic diagram showing the connection relationship between the transfer shaft and the belt in this utility model;

[0028] Figure 5 This is a schematic diagram showing the connection between the rotating shaft and the ratchet in this utility model.

[0029] Explanation of the labels in the diagram:

[0030] 1. Mask body; 11. Mounting block; 12. Spring No. 1; 13. Baffle; 14. Sliding rod; 15. Spring No. 2; 16. Force-bearing block; 17. Locking block; 18. Insertion block; 19. Slot; 2. Connecting block; 21. Fixing frame; 22. Rotating shaft; 23. Handle; 24. Strap; 25. Ratchet; 26. Limiting block; 27. Spring No. 3. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0032] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" 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 a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] Example 1:

[0035] Please see Figure 1-5 A breathing mask head strap fastening device includes a mask body 1 and a mounting block 11. Straps 24 are fixedly connected to both sides of the mask body 1. A baffle 13 is slidably connected to the inner wall of the mounting block 11. A first spring 12 is fixedly connected to one side of the baffle 13. The end of the first spring 12 away from the baffle 13 is fixedly connected to the inside of the mounting block 11. A sliding rod 14 is slidably connected inside the mounting block 11. A force-bearing block 16 and a locking block 17 are fixedly connected to the two ends of the sliding rod 14, respectively. A second spring 15 is sleeved on the outer wall of the sliding rod 14. The two ends of the second spring 15 are fixedly connected to the inside of the mounting block 11 and one side of the force-bearing block 16, respectively. Chamfers are provided on one side of the force-bearing block 16 and both sides of the locking block 17. A plug-in block 18 is slidably connected inside the mounting block 11. A slot 19 is provided on the outside of the plug-in block 18, and the locking block 17 is engaged inside the slot 19.

[0036] In this embodiment, if the operator needs to insert the plug-in block 18 into the mounting block 11, they can first move the baffle 13 and press the first spring 12. After being pressed, the first spring 12 will elastically deform and contract. As the baffle 13 slides continuously, when the baffle 13 releases the blockage of the force block 16 inside the mounting block 11, the plug-in block 18 can be aligned with the inside of the mounting block 11 and inserted. During the insertion process, the end of the plug-in block 18 will press the locking block 17. When the plug-in block 18 is fully inserted into the inside of the mounting block 11, the locking block 17 will complete the locking with the slot 19. At this time, the operator can release the baffle 13 to reset the first spring 12 in the pre-compressed state, thereby driving the baffle 13 to reset. After the baffle 13 is reset, the baffle 13 will block the force block 16 inside the mounting block 11, thereby preventing the sliding rod 14 from sliding and causing the locking block 17 to fall out of the slot 19.

[0037] Example 2:

[0038] Please see Figure 1-5A breathing mask head strap fastening device is provided, wherein a connecting block 2 is fixedly connected to one side of the insertion block 18, and a fixing frame 21 is fixedly connected to the middle of one side of the connecting block 2. A rotating shaft 22 is rotatably connected inside the fixing frame 21. A handle 23 and a ratchet 25 are fixedly connected to the two ends of the rotating shaft 22, respectively. The handle 23 is located outside the fixing frame 21. One end of a strap 24 is fixedly connected to the outside of the rotating shaft 22, and one end of another strap 24 is fixedly connected to one side of the mounting block 11. Both straps 24 are fixedly connected to one side of the mask body 1. A limiting block 26 is rotatably connected inside the fixing frame 21. One end of the limiting block 26 is engaged with the outer wall of the ratchet 25. A third spring 27 is rotatably connected to one side of the limiting block 26. The end of the third spring 27 away from the limiting block 26 is rotatably connected to the inside of the fixing frame 21.

[0039] In this embodiment, the operator can rotate the handle 23 to drive the rotating shaft 22 and ratchet 25 to rotate. Since one end of the strap 24 is fixedly connected to the outer wall of the rotating shaft 22 and a part of the strap 24 is wrapped around the outer wall of the rotating shaft 22, the portion wrapped around the outer wall of the rotating shaft 22 will decrease when the rotating shaft 22 rotates and will slide relative to the fixed frame 21. During the rotation of the ratchet 25, the outer wall of the ratchet 25 will squeeze the end of the limiting block 26 and the No. 3 spring 27 will be elastically compressed. When the ratchet 25 stops rotating, the limiting block 26 will be engaged with the groove on the outer wall of the ratchet 25, thereby completing the rotation limit of the ratchet 25. If it is necessary to release the engagement between the limiting block 26 and the ratchet 25 to increase the number of wrappings of the strap 24 on the rotating shaft 22, the operator can use their finger to move the limiting block 26 to rotate at a certain angle and then rotate the handle 23 in the opposite direction.

[0040] The working principle of this utility model is as follows: If the operator needs to insert the plug-in block 18 into the mounting block 11, the baffle 13 can be moved first to compress the first spring 12. After being compressed, the first spring 12 will undergo elastic deformation and contraction. As the baffle 13 continues to slide, when the baffle 13 releases the blockage of the force-bearing block 16 inside the mounting block 11, the plug-in block 18 can be aligned with the inside of the mounting block 11 and inserted. During the insertion process, the end of the plug-in block 18 will compress the locking block 17. After block 18 is fully inserted into the mounting block 11, the locking block 17 will engage with the slot 19. At this time, the operator can release the baffle 13 to reset the pre-compressed spring 12, thereby driving the baffle 13 to reset. After the baffle 13 is reset, it will seal the force block 16 inside the mounting block 11, thereby preventing the sliding rod 14 from sliding and causing the locking block 17 to fall out of the slot 19. Then, turn the handle 23 to adjust the tightness of the strap 24 before wearing the mask body 1.

[0041] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A breathing mask head strap fastening device, comprising a mask body (1) and a mounting block (11), characterized in that: Both sides of the mask body (1) are fixedly connected with straps (24), the inner wall of the mounting block (11) is slidably connected with a baffle (13), one side of the baffle (13) is fixedly connected with a first spring (12), the end of the first spring (12) away from the baffle (13) is fixedly connected to the inside of the mounting block (11), and the inside of the mounting block (11) is slidably connected with a sliding rod (14). The two ends of the sliding rod (14) are respectively fixedly connected to a force-bearing block (16) and a locking block (17). The outer wall of the sliding rod (14) is fitted with a second spring (15). The two ends of the second spring (15) are fixedly connected to the inside of the mounting block (11) and one side of the force block (16), respectively. The force block (16) has chamfers on one side and both sides of the locking block (17). The mounting block (11) has a sliding connection to a plug block (18), and the plug block (18) has a slot (19) on its outside. The locking block (17) is locked inside the slot (19).

2. The breathing mask head strap fastening device according to claim 1, characterized in that: A connecting block (2) is fixedly connected to one side of the plug-in block (18).

3. The breathing mask head strap fastening device according to claim 2, characterized in that: A fixed frame (21) is fixedly connected to the middle of one side of the connecting block (2), and a rotating shaft (22) is rotatably connected inside the fixed frame (21).

4. The breathing mask head strap fastening device according to claim 3, characterized in that: The two ends of the rotating shaft (22) are respectively fixedly connected to a handle (23) and a ratchet (25), and the handle (23) is located outside the fixed frame (21).

5. The breathing mask head strap fastening device according to claim 1, characterized in that: One end of one of the straps (24) is fixedly connected to the outside of the rotating shaft (22), and one end of the other strap (24) is fixedly connected to one side of the mounting block (11). Both straps (24) are fixedly connected to one side of the mask body (1).

6. The breathing mask head strap fastening device according to claim 4, characterized in that: The fixed frame (21) is internally connected to a limiting block (26), one end of which is engaged with the outer wall of the ratchet (25).

7. The breathing mask head strap fastening device according to claim 6, characterized in that: A third spring (27) is rotatably connected to one side of the limiting block (26), and the end of the third spring (27) away from the limiting block (26) is rotatably connected to the inside of the fixed frame (21).

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