A chemical safety protection device

Abstract

This utility model discloses a protective device for chemical safety, including a gas mask, a wearing and installation mechanism, a locking mechanism, and a disassembly and assembly auxiliary mechanism. The wearing and installation mechanism includes a top clip and a side clip. The locking mechanism includes a locking rod and a clamping plate. The disassembly and assembly auxiliary mechanism includes an operating ring and a friction roller. The wearing and installation mechanism achieves a flexible fit and comfortable wearing. The tightening buckle is adjustable to adapt to different head shapes. The locking rod passes through the installation strap and engages with the locking tube, enabling quick fixation and convenient replacement of the installation strap on the top clip and side clip, significantly improving wearing comfort, adaptability, and ease of maintenance. The locking mechanism achieves precise force transmission, reliable locking and fixation, and quick disassembly and assembly, ensuring the stability and safety of the installation strap connection.

Description

Technical Field

[0001] This utility model relates to the field of protection technology, and more specifically, it relates to a protective device for chemical safety. Background Technology

[0002] In existing technologies, the installation and removal of safety harnesses in chemical safety protective devices are generally inconvenient, especially when working in high-risk environments. This affects the timely use and efficiency of the protective devices. In the chemical industry, protective devices play a crucial role in protecting workers from harmful gases, chemical splashes, or mechanical injuries. However, the design and replacement process of existing harnesses are often too complicated, making it impossible for workers to quickly put on or remove protective equipment in emergencies, thus increasing safety hazards.

[0003] Typically, chemical protective equipment uses traditional buckle, loop, or pin designs for its straps. These devices require manual adjustment and fixation, making the donning process time-consuming and cumbersome. In some high-intensity working environments, the installation and adjustment of the straps not only require precise operation, but may also affect the worker's work performance due to loosening or discomfort caused by prolonged wear. When disassembling, workers need to expend more effort due to the straps being too tight or having a complex structural design, and may even need to use tools or external force to disassemble them, greatly increasing the difficulty and time cost of the operation. Utility Model Content

[0004] (a) Technical problems to be solved In view of the problems existing in the prior art, this utility model provides a protective device for chemical safety, so as to solve the technical problems mentioned in the background art, such as the inconvenience of installing, disassembling and replacing the wearing strap.

[0005] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a chemical safety protective device, comprising a gas mask, a wearing and installation mechanism, a locking mechanism, and a disassembly and assembly auxiliary mechanism. The wearing and installation mechanism includes a top clip and side clips. Two sets of top clips are installed at the top end of the gas mask, and two sets of side clips are installed on both sides of the bottom end of the gas mask. Installation straps are detachably installed on the top clips and side clips, and a wearing strap is connected between the two sets of installation straps. A locking tube is installed on the side of the top clips and side clips. The locking mechanism includes a locking rod and a clamping plate. The locking rod extends directionally into the locking tube, and a clamping plate is installed at one end of the locking rod. An inclined clamping block is slidably installed on the inner wall of the locking tube, and a shifting block is installed on the side of the inclined clamping block. The shifting block is longitudinally slidably arranged on the outer wall of the locking tube, and a guide groove is opened on the shifting block. A longitudinal shifting frame is longitudinally slidably installed on the outer wall of the locking tube, and a guide block is installed on the longitudinal shifting frame. The guide block and the guide groove cooperate to slide and advance together.

[0006] The present invention is further configured such that the disassembly and assembly auxiliary mechanism includes an operating ring and a friction roller. The operating ring is rotatably mounted on the outer wall of the clamping tube. The operating ring is threadedly driven in conjunction with the longitudinal shift frame. A bottom toothed ring is installed at the bottom end of the operating ring. A driving toothed rod is rotatably mounted on the outer wall of the clamping tube. A friction roller is installed at one end of the driving toothed rod. The friction roller is rolled and rubbed against the outer wall of the clamping tube. The other end of the driving toothed rod is engaged with the bottom toothed ring.

[0007] The present invention is further configured such that tightening buckles are installed at both ends of the wearing strap, and one end of the wearing strap is connected to the tightening buckle.

[0008] The present invention is further configured such that a connecting plate is installed at the bottom end of the side wall of the card tube, and the connecting plate is fixedly installed on one end face of the top clamp and the side clamp.

[0009] The present invention is further configured such that an end plate is installed at one end of the locking rod, and one end of the locking rod can extend through the top clamp and the side clamp respectively.

[0010] The present invention is further configured such that the snap-fit ​​rod passes through the mounting strap and snaps into the snap-fit ​​tube, thereby fixing the mounting strap to the top clamp and the side clamp respectively.

[0011] The present invention is further configured such that an outer retaining ring is fixedly installed on the outer wall of the clamping tube, and the toothed rod is driven to rotate and be installed on the outer retaining ring.

[0012] The present invention is further configured such that an embedding groove is provided on the outer wall of the card tube, and the embedding block is directionally slidably disposed within the embedding groove.

[0013] (III) Beneficial Effects Compared with the prior art, this utility model provides a chemical safety protection device with the following advantages: 1. This utility model is equipped with a wearing and installation mechanism. Two sets of top clips and two sets of side clips form a multi-point fixing structure, providing stable and balanced support. The installation strap can be detached and installed and connected through the wearing strap to achieve flexible fit and comfortable wearing. The tightening buckle can be adjusted to adapt to different head shapes. The locking rod passes through the installation strap and locks with the locking tube, realizing quick fixing and convenient replacement of the installation strap on the top clip and side clip, which significantly improves wearing comfort, adaptability and maintenance convenience.

[0014] 2. This utility model is equipped with a locking mechanism. The snap-fit ​​rod with clamp plate extends into the snap-fit ​​tube to achieve quick docking without tools. The inclined clamping block slides and presses against the clamping plate to generate a self-locking clamping force. When the longitudinal moving frame is pressed down, the guide block pushes the embedded moving block to move down in the embedded moving groove, driving the inclined clamping block to slide further to generate a greater clamping force for a firm lock. When lifted up, it is quickly unlocked, realizing precise force transmission, reliable locking and fixing, and quick assembly and disassembly, ensuring the stability and safety of the installation belt connection.

[0015] 3. This utility model is equipped with a disassembly and assembly auxiliary mechanism. When the operating ring is rotated, the bottom toothed ring drives the toothed rod to rotate. The friction roller and the outer wall of the clamping tube roll friction to generate damping force, providing a stable touch and clear positioning feedback. The operating ring achieves labor-saving operation and precise control of locking depth through the threaded longitudinal movement frame, significantly reducing the operating force and improving the convenience of operation, positioning accuracy and reliability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a chemical safety protection device according to the present invention; Figure 2 This is a schematic diagram of the structure for installing the wearing strap in this utility model; Figure 3 This is a schematic diagram of the locking mechanism in this utility model; Figure 4 This is a schematic diagram of the locking mechanism and the disassembly / assembly auxiliary mechanism in this utility model; Figure 5 This is a schematic diagram of the internal structure of the locking mechanism and the disassembly / assembly auxiliary mechanism in this utility model.

[0017] In the diagram: 1. Gas mask; 2. Top clip; 3. Side clip; 4. Mounting strap; 5. Wearing strap; 6. Connecting pipe; 7. Connecting rod; 8. Clamping plate; 9. Angled clamping block; 10. Inserting block; 11. Guide groove; 12. Longitudinal transfer frame; 13. Guide block; 14. Operating ring; 15. Friction roller; 16. Bottom toothed ring; 17. Drive toothed rod; 18. Tightening buckle; 19. Connecting plate; 20. End plate; 21. Outer fixing ring; 22. Inserting groove. Detailed Implementation

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0020] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0021] Please see Figures 1-5A chemical safety protective device includes a gas mask 1, a wearing and installation mechanism, a locking mechanism, and a disassembly and assembly auxiliary mechanism. The wearing and installation mechanism includes top clips 2 and side clips 3. Two sets of top clips 2 are installed at the top end of the gas mask 1, and two sets of side clips 3 are installed on both sides of the bottom end of the gas mask 1. Installation straps 4 are detachably installed on the top clips 2 and side clips 3. A wearing strap 5 connects the two sets of installation straps 4. A locking tube 6 is installed on the side of the top clips 2 and side clips 3. The locking mechanism includes a locking connector... Rod 7 and clamping plate 8 are connected. The clamping rod 7 extends into the clamping tube 6 in a directional manner. A clamping plate 8 is installed at one end of the clamping rod 7. An inclined clamping block 9 is slidably installed on the inner wall of the clamping tube 6. An inserting block 10 is installed on the side of the inclined clamping block 9. The inserting block 10 is slidably installed on the outer wall of the clamping tube 6. A guide groove 11 is opened on the inserting block 10. A longitudinal moving frame 12 is slidably installed on the outer wall of the clamping tube 6. A guide block 13 is installed on the longitudinal moving frame 12. The guide block 13 and the guide groove 11 cooperate to slide and connect.

[0022] In this embodiment, mounting straps 4 are detachably installed on the two sets of top clips 2 at the top of the gas mask 1 and the two sets of side clips 3 on both sides of the bottom. The mounting straps 4 are connected to the wearing straps 5 to form a head fixation system. One end of the mounting strap 4 is connected to the tightening buckles 18 at both ends of the wearing straps 5, and the tightness can be adjusted. The locking tube 6 is fixed to the end faces of the top clips 2 and the side clips 3 through the connecting plate 19. The locking rod 7 passes through the mounting strap 4 and locks into the locking tube 6, realizing the quick fixation of the mounting strap 4 on the top clips 2 and the side clips 3. When it is necessary to replace or adjust the mounting strap 4, the locking rod 7 is withdrawn from the locking tube 6, the mounting strap 4 is quickly separated, and the clamp 8 at one end of the locking rod 7 is oriented. When the clamping rod 7 is inserted into the clamping tube 6, the inclined clamping block 9 on the inner wall of the clamping tube 6 slides along the inclined surface and presses against the clamping plate 8, generating a radial clamping force to initially fix it. When the longitudinal moving frame 12 is pressed down, the guide block 13 on the longitudinal moving frame 12 slides in the guide groove 11 of the inserting block 10, pushing the inserting block 10 to move longitudinally in the inserting groove 22 on the outer wall of the clamping tube 6. The inserting block 10 is fixed on the side of the inclined clamping block 9, driving the inclined clamping block 9 to slide further along the inclined surface, generating a greater clamping force to firmly press against the clamping plate 8, reliably locking the clamping rod 7. When the longitudinal moving frame 12 is lifted, the guide block 13 pushes the inserting block 10 to move in the opposite direction, the inclined clamping block 9 resets and releases the clamping force, and quickly unlocks.

[0023] The disassembly and assembly auxiliary mechanism includes an operating ring 14 and a friction roller 15. The operating ring 14 is rotatably mounted on the outer wall of the clamping tube 6. The operating ring 14 is threadedly driven in conjunction with the longitudinal shift frame 12. A bottom toothed ring 16 is installed at the bottom end of the operating ring 14. A drive toothed rod 17 is rotatably mounted on the outer wall of the clamping tube 6. A friction roller 15 is installed at one end of the drive toothed rod 17. The friction roller 15 rolls and rubs against the outer wall of the clamping tube 6. The other end of the drive toothed rod 17 meshes with the bottom toothed ring 16.

[0024] In this embodiment, the operating ring 14 is rotatably mounted on the outer wall of the clamping tube 6 and is connected to the longitudinal transfer frame 12 by threads. When the operating ring 14 is rotated, the bottom toothed ring 16 at the bottom of the operating ring 14 rotates and meshes with the driving toothed rod 17, causing the toothed rod 17 to rotate. This causes the friction roller 15 at one end of the toothed rod 17 to roll and rub against the outer wall of the clamping tube 6. The rolling of the friction roller 15 generates damping force, providing a stable rotational feel and clear positioning feedback. The rotation of the operating ring 14 propels the longitudinal transfer frame 12 to move through the threads, achieving labor-saving operation and precise control of the locking depth. When rotating in the opposite direction, the friction roller 15 assists in the stable reset operation, causing the clamping plate 8 to disengage from the inclined clamping block 9.

[0025] Please see Figures 1-5 As a further implementation of the overall device: tightening buckles 18 are installed at both ends of the wearing strap 5, one end of the mounting strap 4 is connected to the tightening buckle 18, a connecting plate 19 is installed at the bottom end of the side wall of the clamping tube 6, and the connecting plate 19 is fixedly installed on one end face of the top clamp 2 and the side clamp 3, an end plate 20 is installed at one end of the clamping rod 7, and one end of the clamping rod 7 can extend through the top clamp 2 and the side clamp 3 respectively, the clamping rod 7 passes through the mounting strap 4 and clamps with the clamping tube 6, fixing the mounting strap 4 to the top clamp 2 and the side clamp 3 respectively, an outer retaining ring 21 is fixedly installed on the outer wall of the clamping tube 6, and the toothed rod 17 is driven to rotate and be limited to the outer retaining ring 21. An embedding groove 22 is opened on the outer wall of the clamping tube 6, and the embedding block 10 is directionally slidably set in the embedding groove 22.

[0026] More specifically, when wearing the gas mask 1, the mounting straps 4 on the top clip 2 and side clips 3 are fixed to the head via the wearing strap 5 and the tightening buckle 18. The tightening buckle 18 is adjusted to a suitable position. When installing or replacing the mounting strap 4, the end plate 20 at one end of the locking rod 7 passes through the top clip 2, side clip 3, and mounting strap 4 respectively. The locking rod 7 extends into the locking tube 6, the clamping plate 8 enters the locking tube 6, and the inclined clamping block 9 initially presses against the clamping plate 8. The operating ring 14 is rotated, and the bottom toothed ring 16 drives the toothed rod 17 to rotate. The friction roller 15 rolls to produce a stable tactile sensation. The operating ring 14 moves the longitudinal transfer frame 12 through the thread, and the guide block 13 pushes the inserting block 10 in the guide groove 11 for insertion. The device moves within the slot 22, and the inserting block 10 drives the inclined clamping block 9 to slide along the inclined surface to generate a strong clamping force, firmly locking the locking rod 7. This completes the quick and reliable fixing of the installation strap 4 on the top clamp 2 and the side clamp 3. During use, the installation strap 4 is firmly connected to the top clamp 2 and the side clamp 3 through the locking mechanism. The wearing strap 5 provides head fixation force. When it is necessary to replace or clean the installation strap 4 or adjust the belt system, the operating ring 14 is rotated in the opposite direction, the friction roller 15 assists in stabilizing the reset, the longitudinal shift frame 12 moves in the opposite direction, the guide block 13 pushes the inserting block 10 to move in the opposite direction, the inclined clamping block 9 resets and releases the clamping force, quickly unlocking the device. The locking rod 7 exits from the locking tube 6, and the installation strap 4 is quickly separated.

[0027] In summary, when the entire device is in use or operation: when the installation mechanism needs to be worn, the two sets of top clips 2 at the top of the gas mask 1 and the two sets of side clips 3 on both sides of the bottom are detachably equipped with installation straps 4. The installation straps 4 are connected to the wearing straps 5 to form a head fixation system. One end of the installation strap 4 is connected to the tightening buckles 18 at both ends of the wearing straps 5, and the tightness can be adjusted. The locking tube 6 is fixed to the end face of the top clips 2 and the side clips 3 through the connecting plate 19. The locking rod 7 passes through the installation strap 4 and locks into the locking tube 6, so as to quickly fix the installation strap 4 on the top clips 2 and the side clips 3. When the installation strap 4 needs to be replaced or adjusted, the locking rod 7 is withdrawn from the locking tube 6, and the installation strap 4 is quickly separated.

[0028] When the locking mechanism is in operation, the clamping plate 8 at one end of the locking rod 7 extends into the locking tube 6. The inclined clamping block 9 on the inner wall of the locking tube 6 slides along the inclined surface and presses against the clamping plate 8, generating a radial clamping force to initially fix it. When the longitudinal frame 12 is pressed down, the guide block 13 on the longitudinal frame 12 slides in the guide groove 11 of the inserting block 10, pushing the inserting block 10 to move longitudinally in the inserting groove 22 on the outer wall of the locking tube 6. The inserting block 10 is fixed to the side of the inclined clamping block 9, driving the inclined clamping block 9 to slide further along the inclined surface, generating a greater clamping force to firmly press against the clamping plate 8, reliably locking the locking rod 7. When the longitudinal frame 12 is lifted, the guide block 13 pushes the inserting block 10 to move in the opposite direction, the inclined clamping block 9 resets and releases the clamping force, and quickly unlocks.

[0029] When the auxiliary mechanism needs to be disassembled and reassembled, the operating ring 14 is limited to rotate and installed on the outer wall of the clamping tube 6. It is connected to the longitudinal transfer frame 12 by threads. When the operating ring 14 is rotated, the bottom toothed ring 16 at the bottom of the operating ring 14 rotates and meshes with the driving toothed rod 17, causing the toothed rod 17 to rotate. This causes the friction roller 15 at one end of the toothed rod 17 to roll and rub against the outer wall of the clamping tube 6. The rolling of the friction roller 15 generates damping force, providing a stable rotational feel and clear positioning feedback. The rotation of the operating ring 14 pushes the longitudinal transfer frame 12 to move through the threads, realizing labor-saving operation and precise control of the locking depth. When rotating in the opposite direction, the friction roller 15 assists in the stable reset operation, causing the clamping plate 8 to disengage from the inclined clamping block 9.

[0030] When wearing the gas mask 1, the mounting straps 4 on the top clip 2 and side clips 3 are secured to the head via the wearing strap 5 and the tightening buckle 18. Adjust the tightening buckle 18 to a suitable position. When installing or replacing the mounting strap 4, the end plate 20 at one end of the locking rod 7 passes through the top clip 2, side clip 3, and mounting strap 4 respectively. The locking rod 7 extends into the locking tube 6, the clamping plate 8 enters the locking tube 6, and the inclined clamping block 9 initially presses against the clamping plate 8. Rotating the operating ring 14 causes the bottom toothed ring 16 to drive the toothed rod 17 to rotate, and the friction roller 15 rolls to produce a stable tactile sensation. The operating ring 14 moves the longitudinal shift frame 12 through the thread, and the guide block 13 pushes the inserting block 10 into the inserting groove 2 within the guide groove 11. 2. The inner movement of the insert block 10 drives the inclined clamp block 9 to slide along the inclined surface to generate a strong clamping force, which firmly locks the snap-fit ​​rod 7, completing the quick and reliable fixation of the installation belt 4 on the top clamp 2 and the side clamp 3. During use, the installation belt 4 is firmly connected to the top clamp 2 and the side clamp 3 through the snap-fit ​​mechanism. The wearing strap 5 provides head fixation force. When it is necessary to replace or clean the installation belt 4 or adjust the belt system, the reverse rotation of the operating ring 14 causes the friction roller 15 to assist in stable reset, the longitudinal shift frame 12 moves in the reverse direction, the guide block 13 pushes the insert block 10 to move in the reverse direction, the inclined clamp block 9 resets and releases the clamping force, and the snap-fit ​​rod 7 exits from the snap-fit ​​tube 6, and the installation belt 4 is quickly separated.

[0031] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A chemical safety protective device, comprising a gas mask (1), a wearing and installation mechanism, a locking mechanism, and an assembly / disassembly auxiliary mechanism, characterized in that: The wearing and installation mechanism includes a top clip (2) and side clips (3). Two sets of top clips (2) are installed at the top end of the gas mask (1), and two sets of side clips (3) are installed on both sides of the bottom end of the gas mask (1). Installation straps (4) are detachably installed on the top clips (2) and side clips (3). Wearing straps (5) are connected between the two sets of installation straps (4). Locking tubes (6) are installed on the sides of the top clips (2) and side clips (3). The locking mechanism includes a locking rod (7) and a clamping plate (8). The locking rod (7) extends directionally into the locking tube (6). Inside, a clamping plate (8) is installed at one end of the clamping rod (7), and an inclined clamping block (9) is slidably installed on the inner wall of the clamping pipe (6). An inserting block (10) is installed on the side of the inclined clamping block (9). The inserting block (10) is slidably installed on the outer wall of the clamping pipe (6). A guide groove (11) is opened on the inserting block (10). A longitudinal moving frame (12) is slidably installed on the outer wall of the clamping pipe (6). A guide block (13) is installed on the longitudinal moving frame (12). The guide block (13) and the guide groove (11) cooperate to slide and connect.

2. The chemical safety protective device according to claim 1, characterized in that: The disassembly and assembly auxiliary mechanism includes an operating ring (14) and a friction roller (15). The operating ring (14) is rotatably mounted on the outer wall of the clamping tube (6). The operating ring (14) is threadedly driven in conjunction with the longitudinal shift frame (12). A bottom toothed ring (16) is installed at the bottom end of the operating ring (14). A drive toothed rod (17) is rotatably mounted on the outer wall of the clamping tube (6). A friction roller (15) is installed at one end of the drive toothed rod (17). The friction roller (15) is rolled and rubbed against the outer wall of the clamping tube (6). The other end of the drive toothed rod (17) is meshed with the bottom toothed ring (16).

3. The chemical safety protection device according to claim 1, characterized in that: The two ends of the wearing strap (5) are equipped with tightening buckles (18), and one end of the mounting strap (4) is connected to the tightening buckle (18).

4. The chemical safety protection device according to claim 1, characterized in that: A connecting plate (19) is installed at the bottom of the side wall of the card tube (6), and the connecting plate (19) is fixedly installed on one end face of the top clamp (2) and the side clamp (3).

5. A chemical safety protective device according to claim 1, characterized in that: One end of the snap-fit ​​rod (7) is equipped with an end plate (20), and one end of the snap-fit ​​rod (7) can extend through the top clamp (2) and the side clamp (3) respectively.

6. A chemical safety protective device according to claim 1, characterized in that: The snap-fit ​​rod (7) passes through the mounting strip (4) and snaps into the snap-fit ​​tube (6), thereby fixing the mounting strip (4) onto the top clamp (2) and the side clamp (3) respectively.

7. A chemical safety protective device according to claim 2, characterized in that: An outer retaining ring (21) is fixedly installed on the outer wall of the clamping tube (6), which drives the toothed rod (17) to rotate in a limited position and is installed on the outer retaining ring (21).

8. A chemical safety protective device according to claim 1, characterized in that: The outer wall of the card tube (6) is provided with a sliding groove (22), and the sliding block (10) is oriented and slidably arranged in the sliding groove (22).

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