Self-rescuer convenient to uncover

Abstract

The utility model relates to the technical field of self-rescuers, and discloses a self-rescuer convenient to uncover, which comprises a body shell, the body shell comprises a lower shell and an upper cover, the upper cover is detachably arranged on the upper side of the lower shell, a compressed oxygen bottle is arranged on the lower shell, and a lock catch assembly is arranged between the lower shell and the upper cover. The lower shell and the upper cover are locked / unlocked through a lock catch assembly, the lock catch assembly and the body shell are arranged in a separable mode, the lock catch assembly comprises a buckle plate and a buckle ring rotationally connected to the buckle plate, the buckle plate is provided with an abutting portion, the lower shell is provided with a groove used for rotationally abutting against the abutting portion, and the upper cover is provided with a clamping groove corresponding to the buckle ring. The self-rescuer convenient to uncover is simple in structure and low in production cost; when the upper cover is unlocked and opened, the retaining ring can be separated from the lower shell, the situation that the retaining ring hooks the lower shell and the upper cover is avoided, the upper cover is convenient and labor-saving to open, the self-rescuer wearing time is saved, and the use experience is good.

Description

Technical Field

[0001] This utility model relates to the field of self-rescue device technology, and more specifically, to a self-rescue device with an easy-to-open lid. Background Technology

[0002] A compressed oxygen self-rescue device is a self-rescue and escape device that uses high-pressure compressed oxygen as its oxygen source. It is mainly used in coal mines, firefighting, and other fields when toxic or harmful gas leaks or oxygen deficiency and asphyxiation occur in the work environment. Personnel on site can escape the disaster area and save themselves by wearing the compressed oxygen self-rescue device. The principle of an isolated compressed oxygen self-rescue device is that in the event of a coal mine accident, opening the cylinder valve allows high-pressure oxygen to be reduced to normal atmospheric pressure by a pressure reducer, and then flows out through the pressure reducer's constant flow port into the breathing bag for breathing. A compressed oxygen self-rescue device includes a breathing bag, an oxygen cylinder, and calcium hydroxide for absorbing carbon dioxide. The calcium hydroxide is generally placed in the device's medicine chamber. In related technologies, the user exhales into the breathing bag through a mouthpiece connected to it. The exhaled gas diffuses from the breathing bag into the calcium hydroxide in the medicine chamber, allowing the calcium hydroxide to absorb the carbon dioxide in the gas. Some existing (compressed oxygen) self-rescue devices include a main body shell, which consists of a lower shell and a top cover. The top cover needs to be opened before use.

[0003] Some existing self-rescue devices use a locking mechanism for the top cover to lock onto the bottom shell. Before use, even after the lock is opened, there is a chance that the buckle will still be engaged with the top cover's locking block, preventing the top cover from detaching in time and requiring readjustment (the user needs to manually disengage the buckle from the top cover's locking block). This design greatly reduces the time required to wear the self-rescue device and protects the user's life. In addition, some existing self-rescue devices require manual removal of the top cover after it is unlocked, making the opening inconvenient and resulting in a poor user experience. Utility Model Content

[0004] To address at least one of the aforementioned problems, this utility model provides a self-rescue device with an easy-to-open lid, comprising: a main body shell, the main body shell including a lower shell and an upper cover, the upper cover being detachably disposed on the upper side of the lower shell, a compressed oxygen cylinder being disposed on the lower shell, a locking assembly being disposed between the lower shell and the upper cover, the lower shell and the upper cover being locked / unlocked by the locking assembly, the locking assembly being detachably disposed from the main body shell, the locking assembly including a buckle plate and a buckle ring rotatably connected to the buckle plate, the buckle plate being provided with an abutment portion, the lower shell... The upper cover is provided with a groove for rotating and abutting the abutting part, and the upper cover is provided with a slot corresponding to the buckle; when the locking assembly is locked, the buckle engages with the slot, and the abutting part abuts against the groove; when the locking assembly is unlocked, the buckle plate is rotated around the abutting part by external force, so that the abutting part disengages from the groove; this utility model is a self-rescue device that is easy to open, with a simple structure and low production cost; when the upper cover is unlocked and opened, the buckle can disengage from the lower shell, avoiding the buckle from hooking the lower shell and the upper cover together, and the upper cover is easy and effortless to open, providing a good user experience.

[0005] Optionally, the slot opening is positioned upwards, and when the locking assembly is locked, the upper part of the buckle engages with the slot.

[0006] Optionally, the groove opening is provided facing downwards, and when the latch assembly is locked, the abutment portion is formed on the upper part of the latch plate, and an operating handle is formed on the lower part of the latch plate.

[0007] Optionally, the groove is an arc-shaped groove, and the abutment portion is arc-shaped.

[0008] Optionally, the lower shell is provided with a guide slope to facilitate the insertion / extraction of the abutment portion into / out of the groove.

[0009] Optionally, the lower shell is provided with a first protrusion, the groove is provided on the first protrusion, the upper cover is provided with a second protrusion, the second protrusion is positioned above the first protrusion, the slot is provided on the second protrusion, and the buckle is provided with a bent portion for avoiding the first protrusion and the second protrusion.

[0010] Optionally, the lower shell is provided with a positioning protrusion in an annular shape, and the upper cover is provided with a lower opening, with the positioning protrusion positioned inside the lower opening for positioning.

[0011] Optionally, the outer shell of the main body is provided with a first baffle and a second baffle, and the locking assembly is located between the first baffle and the second baffle.

[0012] Optionally, an elastic element is provided between the lower shell and the upper cover.

[0013] Optionally, the elastic element is a compression spring, one end of the elastic element abuts against the lower shell, and the other end of the elastic element abuts against the upper cover. The lower shell is provided with a mounting post, and the mounting post is provided with a mounting groove for mounting the elastic element. The bottom of the mounting groove is provided with a first reinforcing rib, and the bottom of the mounting post is provided with a second reinforcing rib between it and the lower shell.

[0014] Compared to existing technologies, this utility model features an easy-to-open self-rescue device with a simple structure and low production cost. When the top cover is unlocked, the buckle detaches from the lower shell, preventing the buckle from hooking the lower shell and top cover together. Opening the top cover is convenient and effortless, saving time on wearing the self-rescue device and providing a superior user experience. An operating handle is formed at the lower part of the buckle plate, allowing for locking / unlocking operations by manually turning the handle, reducing operational difficulty. A guide slope is provided on the lower shell to facilitate the insertion / extraction of the abutment part into the groove, further reducing operational difficulty. A positioning protrusion is placed inside the lower opening for positioning, preventing horizontal displacement when the top cover is installed on the lower shell, thus improving structural stability. The main body shell has a first baffle and a second baffle, with the locking assembly positioned between them, preventing accidental locking due to external factors, ensuring reliable use. An elastic element is provided between the lower shell and the top cover, allowing the top cover to automatically pop open after the locking assembly is unlocked, making opening the cover more convenient and effortless, further saving users time on wearing the self-rescue device. Attached Figure Description

[0015] Figure 1 This is a perspective view of the self-rescue device with an easy-to-open lid according to this utility model;

[0016] Figure 2 for Figure 1 Enlarged view of section A;

[0017] Figure 3 This is a cross-sectional view of the self-rescue device of this utility model when it is locked, which is easy to open.

[0018] Figure 4 for Figure 2 Enlarged view of section B;

[0019] Figure 5 This is a cross-sectional view of the self-rescue device of this utility model when it is unlocked;

[0020] Figure 6 for Figure 5 Enlarged view of section C;

[0021] Figure 7 This is a schematic diagram of the structure of the self-rescue device mounting slot for easy opening of the cover according to this utility model;

[0022] Figure 8This is a schematic diagram of the self-rescue device latch assembly for easy opening of the cover according to this utility model;

[0023] The component names corresponding to the various reference numerals in the figure are as follows: 1 is the lower shell, 101 is the groove, 102 is the guide slope, 103 is the first protrusion, 104 is the positioning protrusion, 105 is the mounting groove, 106 is the first reinforcing rib, 107 is the second reinforcing rib, 2 is the upper cover, 201 is the slot, 202 is the second protrusion, 3 is the compressed oxygen cylinder, 4 is the buckle plate, 40 is the operating handle, 401 is the abutment part, 5 is the buckle ring, 501 is the bending part, 6 is the first baffle, 7 is the second baffle, 8 is the elastic element, and 9 is the mounting post. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] In the description of this utility model, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship when the product is in normal use.

[0026] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature.

[0027] See Figures 1-8This utility model provides a self-rescue device with an easy-to-open cover, comprising: a main body shell, the main body shell including a lower shell 1 and an upper cover 2, the upper cover 2 being detachably disposed on the upper side of the lower shell 1, a compressed oxygen cylinder 3 disposed on the lower shell 1, a locking assembly being disposed between the lower shell 1 and the upper cover 2, the lower shell 1 and the upper cover 2 being locked / unlocked by the locking assembly, the locking assembly being detachable from the main body shell, the locking assembly including a buckle plate 4 and a buckle ring rotatably connected to the buckle plate 4. 5. The buckle plate 4 is provided with an abutment part 401, the lower shell 1 is provided with a groove 101 for rotating and abutting with the abutment part 401, and the upper cover 2 is provided with a slot 201 corresponding to the buckle ring 5; when the locking assembly is locked, the buckle ring 5 is engaged with the slot 201, and the abutment part 401 abuts against the groove 101; when the locking assembly is unlocked, the buckle plate 4 is rotated around the abutment part 401 by external force, so that the abutment part 401 disengages from the groove 101; this utility model facilitates opening the cover. This self-rescue device features a simple structure and low production cost. When the top cover is unlocked, the buckle can detach from the lower shell, preventing the buckle from hooking the lower shell and top cover together. Opening the top cover is convenient and effortless, providing a superior user experience. For locking, first insert the upper part of the buckle 5 into the slot 201, then guide the abutment part 401 into the groove 101, and rotate the buckle plate 4 clockwise around the abutment part 401 until it is in place. For unlocking, rotate the buckle plate 4 counterclockwise around the lower part of the abutment part 401 until the abutment part 401 disengages from the groove 101, allowing the locking assembly to detach from the lower shell when the top cover is opened upwards. This convenient operation saves time and better protects the user's life. Because the locking assembly is separate from the main body shell, the pin installation process is eliminated during production (existing locking structures require a pin to hinge to the lower shell), improving production efficiency and reducing costs.

[0028] See Figures 1-4 The slot 201 is set with its opening facing upwards. When the locking assembly is locked, the upper part of the buckle 5 engages with the slot 201, and the lower part of the buckle 5 is hinged to the buckle plate 4. The structure is reasonably designed. The groove 101 is set with its opening facing downwards. When the locking assembly is locked, the abutment part 401 is formed on the upper part of the buckle plate 4, and the lower part of the buckle plate 4 has an operating handle 40. The locking / unlocking operation is performed by turning the operating handle 40 by hand, which reduces the difficulty of operation. The groove 101 is an arc-shaped groove, and the abutment part 401 is arc-shaped, so that the abutment part 401 can rotate smoothly in the groove 101. The lower shell 1 is provided with a guide slope 102 to facilitate the abutment part 401 to enter / exit the groove 101, which reduces the difficulty of operation.

[0029] See Figures 1-6The lower shell 1 is provided with a first protrusion 103, and a groove 101 is provided on the first protrusion 103. The upper cover 2 is provided with a second protrusion 202, which is positioned above the first protrusion 103. A slot 201 is provided on the second protrusion 202. The buckle 5 is provided with a bent part 501 for avoiding the first protrusion 103 and the second protrusion 202. The structure is reasonably designed. The lower shell 1 is provided with a positioning protrusion 104 in an annular shape. The upper cover 2 is provided with a lower opening. The positioning protrusion 104 is positioned inside the lower opening for positioning. When the upper cover 2 is installed on the lower shell 1, it is not easy for horizontal displacement to occur, thus improving the structural stability.

[0030] See Figure 1 and Figure 2 and Figure 7 The outer shell of the device is provided with a first baffle 6 and a second baffle 7. The locking assembly is located between the first baffle 6 and the second baffle 7 to prevent accidental locking due to external factors, ensuring reliable use. An elastic element 8 is provided between the lower shell 1 and the upper cover 2. The elastic element allows the upper cover to automatically pop open after the locking assembly is unlocked, making opening the cover more convenient and effortless, further saving the user's time in putting on the self-rescue device. The elastic element 8 is a compression spring. One end of the elastic element 8 abuts against the lower shell 1, and the other end abuts against the upper cover 2. The lower shell 1 is provided with a mounting post 9. The mounting post 9 is provided with a mounting groove 105 for mounting the elastic element 8. A first reinforcing rib 106 is provided at the bottom of the mounting groove 105. A second reinforcing rib 107 is provided between the bottom of the mounting post 9 and the lower shell 1 to increase structural strength and prevent damage. The first reinforcing rib 106 is cross-shaped. The mounting post 9, the lower shell 1, the first reinforcing rib 106, and the second reinforcing rib 107 are integrally formed.

[0031] This utility model features an easy-to-open self-rescue device with a simple structure and low production cost. When the top cover is unlocked, the buckle detaches from the bottom shell, preventing the buckle from hooking the bottom shell and top cover together. Opening the top cover is convenient and effortless, saving time on wearing the self-rescue device and providing a superior user experience. An operating handle is formed at the lower part of the buckle plate, allowing for locking / unlocking operations by manually turning the handle, reducing operational difficulty. The bottom shell has a guide slope for easy insertion / extraction of the abutment part into the groove, further reducing operational difficulty. A positioning protrusion is placed inside the lower opening for positioning, preventing horizontal displacement when the top cover is installed on the bottom shell, thus improving structural stability. The main body shell has a first baffle and a second baffle, with the locking assembly positioned between them, preventing accidental locking due to external factors, ensuring reliable use. An elastic element is provided between the bottom shell and the top cover, allowing the top cover to automatically pop open after the locking assembly is unlocked, making opening the cover more convenient and effortless, further saving users time on wearing the self-rescue device.

[0032] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A self-rescue device with an easy-to-open lid, characterized in that, include: The main body shell includes a lower shell (1) and an upper cover (2). The upper cover (2) is detachably disposed on the upper side of the lower shell (1). A compressed oxygen cylinder (3) is disposed on the lower shell (1). A locking assembly is disposed between the lower shell (1) and the upper cover (2). The lower shell (1) and the upper cover (2) are locked / unlocked by the locking assembly. The locking assembly is detachable from the main body shell. The locking assembly includes a buckle plate (4) and a buckle ring (5) rotatably connected to the buckle plate (4). The buckle plate (4) is provided with... The lower shell (1) is provided with a groove (101) for rotating and abutting the abutting part (401), and the upper cover (2) is provided with a slot (201) corresponding to the buckle (5). When the locking assembly is locked, the buckle (5) engages with the slot (201), and the abutting part (401) abuts against the groove (101). When the locking assembly is unlocked, the buckle plate (4) is rotated around the abutting part (401) by external force, so that the abutting part (401) disengages from the groove (101).

2. The self-rescue device with an easy-to-open lid as described in claim 1, characterized in that, The slot (201) is set with its opening facing upward. When the locking assembly is locked, the upper part of the buckle (5) engages with the slot (201).

3. The self-rescue device with an easy-to-open lid as described in claim 1, characterized in that, The groove (101) is set with its opening facing downward. When the latch assembly is locked, the abutment (401) is formed on the upper part of the latch plate (4), and an operating handle (40) is formed on the lower part of the latch plate (4).

4. The self-rescue device with an easy-to-open lid as described in claim 1, characterized in that, The groove (101) is an arc-shaped groove, and the abutment part (401) is arc-shaped.

5. The self-rescue device with an easy-to-open lid as described in claim 1, characterized in that, The lower shell (1) is provided with a guide slope (102) to facilitate the insertion / extraction of the abutment part (401) into / out of the groove (101).

6. The self-rescue device with an easy-to-open lid as described in claim 1, characterized in that, The lower shell (1) is provided with a first protrusion (103), the groove (101) is provided on the first protrusion (103), the upper cover (2) is provided with a second protrusion (202), the second protrusion (202) is positioned above the first protrusion (103), the slot (201) is provided on the second protrusion (202), and the buckle (5) is provided with a bent portion (501) for avoiding the first protrusion (103) and the second protrusion (202).

7. The self-rescue device with an easy-to-open lid as described in claim 1, characterized in that, The lower shell (1) is provided with a positioning protrusion (104) in an annular shape, and the upper cover (2) is provided with a lower opening. The positioning protrusion (104) is positioned inside the lower opening.

8. The self-rescue device with an easy-to-open lid as described in claim 1, characterized in that, The outer shell of the main body is provided with a first baffle (6) and a second baffle (7), and the locking assembly is placed between the first baffle (6) and the second baffle (7).

9. The self-rescue device with an easy-to-open lid as described in any one of claims 1-8, characterized in that, An elastic element (8) is provided between the lower shell (1) and the upper cover (2).

10. The self-rescue device with an easy-to-open lid as described in claim 9, characterized in that, The elastic element (8) is a compression spring. One end of the elastic element (8) abuts against the lower shell (1), and the other end of the elastic element (8) abuts against the upper cover (2). A mounting post (9) is provided on the lower shell (1). A mounting groove (105) for mounting the elastic element (8) is provided in the mounting post (9). A first reinforcing rib (106) is provided at the bottom of the mounting groove (105). A second reinforcing rib (107) is provided between the bottom of the mounting post (9) and the lower shell (1).

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