Intrinsic safety type explosion-proof interphone

Abstract

An intrinsic safety type explosion-proof interphone comprises an interphone body, an antenna arranged on the top surface of the interphone body and a knob rotationally arranged on the interphone body, and a clamping plate is arranged on the interphone body. The machine body comprises a first shell and a second shell, the first shell and the second shell are detachably connected through a connecting piece, and a dotting key is arranged on the first shell. A mounting hole is formed in the second shell, a locking piece matched with the clamping plate is arranged on the second shell, the locking piece comprises sliding blocks which are arranged in the second shell and located on the inner walls of the two sides of the mounting hole, a rotating roller is rotationally arranged between the two sliding blocks through a supporting shaft, and a plurality of protrusions are distributed on the peripheral wall of the rotating roller. According to the utility model, the locking piece is arranged, the interphone can be inserted into the hanging object more smoothly through the rotating roller in the limiting piece, the locking piece is limited through the limiting part, and after the interphone is hung on the hanging object, the rotating roller of the locking piece is in a fixed state under the action of the limiting part; and the rotating roller is matched with the clamping plate, so that the stability of the interphone on a suspended object is improved.

Description

Technical Field

[0001] This utility model belongs to the field of explosion-proof mining communication, and particularly relates to an intrinsically safe explosion-proof walkie-talkie. Background Technology

[0002] As a portable instant communication tool, walkie-talkies not only enable communication by simply pressing a call button, but their portability also lies in the fact that users can use clips, back clips, or other securing devices to hang them on clothing, belts, or shoulder straps for quick access and hands-free operation. Conventional walkie-talkies are miniaturized to make them easier to hold. However, due to internal space limitations, the circuitry is simplified, resulting in reduced quality and lower dustproof and waterproof standards, affecting communication quality when used in underground coal mines. Furthermore, the less compact structure of traditional walkie-talkies requires temporary securing them by hanging them on clothing. In high-dynamic working environments (such as running, climbing, and equipment operation), excessive human movement can cause the clips to loosen or even detach, leading to equipment damage, communication interruption, or loss. Utility Model Content

[0003] The purpose of this invention is to provide an intrinsically safe explosion-proof walkie-talkie to solve the technical problems mentioned in the background section.

[0004] To achieve the above objectives, the specific technical solution of this utility model for an intrinsically safe explosion-proof walkie-talkie is as follows:

[0005] An intrinsically safe explosion-proof walkie-talkie includes a body, an antenna mounted on the top surface of the body, a rotary knob mounted on the body, and a clamping plate on the body. The body includes a first housing and a second housing, which are detachably connected by a connector. The clamping plate is located on the side of the second housing opposite to the first housing. A dot-matrix key is located on the first housing. A mounting hole is provided on the second housing, and a locking element that cooperates with the clamping plate is provided on the second housing. The locking element includes sliders located on the inner walls of the mounting hole on both sides of the second housing. A rotating roller is rotatably mounted between the two sliders via a support shaft, and multiple protrusions are distributed on the outer peripheral wall of the rotating roller. A limiting part is provided between the support shaft and the sliders.

[0006] Furthermore, the limiting part includes a ratchet provided on the support shaft, which rotates the ratchet teeth provided on the slider via a rotating shaft, and a torsion spring is sleeved on the rotating shaft, with one end of the torsion spring connected to the ratchet teeth and the other end connected to the slider.

[0007] Furthermore, the second housing is equipped with an unlocking assembly, which includes guide rails located on the inner wall of the second housing corresponding to the positions of each slider, and the sliders are slidably mounted to their corresponding guide rails. A first fixing block is provided on one side wall of the guide rail, and a second fixing block is provided on the end of the slider away from the first fixing block. A spring is provided between the first fixing block and the second fixing block. A guide block is provided at the bottom end of the guide rail, and a guide hole is opened on the guide block. A push rod is slidably mounted in the guide hole, and an inclined block is provided on the end of the push rod near the guide block. The push rod passes through the second housing and is slidably mounted thereto. A hanging rod that cooperates with the inclined block is provided on the bottom surface of the slider.

[0008] Furthermore, the first fixing block is provided with a first limiting pin, and the first limiting pin passes through the second fixing block and is slidably disposed therewith, and the first spring is sleeved on the first limiting pin.

[0009] Furthermore, a third fixing block is provided on the side wall of the push rod inside the second housing, and a second spring is provided between the third fixing block and the guide block.

[0010] Furthermore, the guide block is provided with a second limiting pin, which passes through the third fixing block and slides therewith, and the second spring is sleeved on the second limiting pin.

[0011] Furthermore, the second housing has a spring plate on the outer wall corresponding to the push rod that engages with the free end of the push rod.

[0012] Furthermore, the roller is a rubber roller, and the protrusions are made of rubber.

[0013] The intrinsically safe explosion-proof walkie-talkie of this utility model has the following advantages:

[0014] 1. This utility model is equipped with a locking component, and through the rotating roller in the limiting component, the walkie-talkie can be inserted into the suspended object more smoothly. The locking component is limited by the limiting part. After the walkie-talkie is hung on the suspended object, the rotating roller of the locking component is fixed under the action of the limiting part, and the rotating roller cooperates with the clamping plate to improve the stability of the walkie-talkie on the suspended object.

[0015] 2. By setting an unlocking component, this utility model can move the rotating roller away from the clamping plate, release the clamping plate and the rotating roller from the suspended object, and make it convenient for the user to quickly remove it. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an intrinsically safe explosion-proof walkie-talkie according to the present invention;

[0017] Figure 2 This is a schematic diagram of the clamping plate and spring plate structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the first housing, push rod, and spring plate of this utility model;

[0019] Figure 4 This is a schematic diagram of the unlocking component of this utility model;

[0020] Figure 5 This is a schematic diagram of the limiting part of this utility model.

[0021] Explanation of markings in the diagram:

[0022] 1. First housing; 2. Second housing; 3. Clamping plate; 4. Antenna; 5. Knob; 6. Speaker; 7. Button; 8. Display screen; 9. Microphone; 10. Mounting hole; 11. Guide rail; 12. Slider; 13. Support shaft; 14. Rotating roller; 15. Protrusion; 16. Ratchet; 17. Rotating shaft; 18. Ratchet tooth; 19. Torsion spring; 20. Hanging rod; 21. First fixing block; 22. Second fixing block; 23. First spring; 24. First limiting pin; 25. Guide block; 26. Guide hole; 27. Push rod; 28. Third fixing block; 29. ​​Second limiting pin; 30. Second spring; 31. Spring plate; 32. Dot key. Detailed Implementation

[0023] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of an intrinsically safe explosion-proof walkie-talkie.

[0024] like Figures 1 to 5 As shown, this utility model discloses an intrinsically safe explosion-proof walkie-talkie, including a body, an antenna 4 located on the top surface of the body, and a rotary knob 5 rotated on the body. The antenna 4 receives signals, while the knob 5 adjusts the channel. For easy carrying, a clamp 3 is provided on the body. The clamp 3 is made of elastic material; to secure the walkie-talkie, simply insert a hanging object (clothing, belt, or shoulder strap) between the clamp 3 and the body. The clamp 3 is elastic; when the walkie-talkie is mounted on a hanging object, simply push the free end of the clamp 3 outwards to create a gap between the clamp 3 and the body, facilitating the hanging of the walkie-talkie.

[0025] Specifically, the device includes a first housing 1 and a second housing 2, which are detachably connected by a connector. A clamping plate 3 is located on the side of the second housing 2 opposite to the first housing 1. The connector is preferably a bolt, which allows for quick connection of the first housing 1 and the second housing 2; screws can also be used. An intercom module is bolted into the first housing 1, and a battery is also located within the first housing 1, connected to the intercom module. For convenient battery charging, a charging port is provided on the side wall of the first housing 1, and a charging adapter for connecting to the battery is installed on the charging port. Additionally, as... Figure 1As shown, the first housing 1 also includes a button 7, a display screen 8, a speaker 6, and a microphone 9 for speaking. Furthermore, the first housing 1 also includes a dot-matrix button 32, enabling the walkie-talkie to have dot-matrix control functions, directly sending uplink and downlink commands. Pressing the dot-matrix button 32 allows for monitoring, tracking, or triggering operations of the operator through preset marker points.

[0026] Preferably, a mounting hole 10 is provided on the second housing 2, and a locking element that cooperates with the clamping plate 3 is provided on the second housing 2. The cooperation between the locking element and the clamping plate 3 can clamp and fix the suspended object, making the connection between the walkie-talkie and the suspended object more stable. Specifically, the locking element includes sliders 12 respectively provided on the inner walls of both sides of the mounting hole 10 in the second housing 2. A rotating roller 14 is rotatably provided between the two sliders 12 through a support shaft 13, and multiple protrusions 15 are distributed on the outer peripheral wall of the rotating roller 14. Part of the rotating roller 14 is located outside the mounting hole 10, so that the rotating roller 14 and the clamping plate 3 have a greater clamping force. That is, when the suspended object is located between the clamping plate 3 and the rotating roller 14, the clamping force of the clamping plate 3 and the rotating roller 14 on the suspended object can prevent the walkie-talkie from detaching from or falling off the suspended object.

[0027] like Figure 4 and Figure 5 As shown, a limiting part is provided between the support shaft 13 and the slider 12. The limiting part allows the rotating roller 14 to rotate only in one direction. When the walkie-talkie is inserted into the suspended object, the rotating roller 14 contacts the suspended object and rotates under the action of friction between the roller 14 and the suspended object, thereby reducing the resistance when the walkie-talkie is installed on the suspended object. Specifically, the limiting part includes a ratchet 16 provided on the support shaft 13, which rotates a ratchet 18 provided on the slider 12 via a rotating shaft 17. A torsion spring 19 is sleeved on the rotating shaft 17, with one end of the torsion spring 19 connected to the ratchet 18 and the other end connected to the slider 12. During the process of installing the walkie-talkie onto the suspended object from top to bottom, the rotating roller 14 will contact the suspended object and begin to rotate. The rotation of the rotating roller 14 will drive the ratchet 16 to rotate, and the rotation of the ratchet 16 will push the ratchet 18 that it cooperates with to move. The ratchet 18 will move repeatedly under the action of the torsion spring 19 and the ratchet 16. Once the walkie-talkie is installed, the ratchet 18 locks the ratchet 16, thus preventing the walkie-talkie from falling off the hanging object when the user makes large movements, effectively improving the practicality of the walkie-talkie.

[0028] As a further improvement, the rotating roller 14 is a rubber roller, and the protrusion 15 is also made of rubber. The rubber rotating roller 14 and protrusion 15 can also achieve a stable connection between the walkie-talkie and a smooth hanging object. Furthermore, when the clamping plate 3 and the rotating roller 14 clamp the hanging object, the rotating roller 14 will deform slightly, and the clamped hanging object will also deform accordingly, further improving the connection strength between the clamping plate 3 and the rotating roller 14 and the hanging object.

[0029] To facilitate the removal of the walkie-talkie from the hanging device, an unlocking assembly is provided on the second housing 2. This assembly includes guide rails 11 located on the inner wall of the second housing 2 corresponding to the positions of each slider 12. The sliders 12 and their corresponding guide rails 11 are slidably connected. It should be noted that the maximum size of the two sliders 12 is smaller than the length of the mounting hole 10. This allows the sliders 12 to move outwards from the mounting hole 10 via the support shaft 13, enabling better engagement with the clamping plate 3. Figure 4 As shown, a first fixing block 21 is provided on one side wall of the guide rail 11, and a second fixing block 22 is provided on the side of the slider 12 away from the first fixing block 21. A first spring 23 is provided between the first fixing block 21 and the second fixing block 22. A guide block 25 is also provided at the bottom of the guide rail 11, and a guide hole 26 is provided on the guide block 25. A push rod 27 is slidably disposed within the guide hole 26. An inclined block is provided at one end of the push rod 27 near the guide block 25, and the other end of the push rod 27 passes through the second housing 2 and is slidably disposed therewith. Simultaneously, a hanging rod 20 cooperating with the inclined block is also provided on the bottom surface of the slider 12.

[0030] To remove the walkie-talkie from the suspended object, simply press the push rod 27 with two fingers simultaneously. The push rod 27 pushes the hanging rod 20 via the inclined block, and the hanging rod 20 moves towards the first housing 1 under the action of the inclined surface of the inclined block. The hanging rod 20, through the slider 12 and the support shaft 13, drives the rotating roller 14 away from the clamping plate 3, thus releasing the clamping plate 3 and the rotating roller 14 from the suspended object. The walkie-talkie can then be removed from the suspended object. It should be noted that as the slider 12 moves with the hanging rod 20, the second fixing block 22 and the first fixing block 21 on the slider 12 compress the first spring 23. After the walkie-talkie is removed, the push rod 27 can be released. The first spring 23, through the second fixing block 22, drives the slider 12 and the support shaft 13 on the slider 12 to their initial positions, and the rotating roller 14 on the support shaft 13 also moves to its initial position. When the lifting rod 20 on the bottom surface of the slider 12 moves, the lifting rod 20 will push the push rod 27 to the initial position through the inclined surface of the inclined block, so that it can be used again next time.

[0031] To position the slider 12 relative to the guide rail 11, a first limiting pin 24 is provided on the first fixed block 21, and the first limiting pin 24 passes through the second fixed block 22 and is slidably disposed therewith. A first spring 23 is sleeved on the first limiting pin 24, and the first limiting pin 24 prevents the first spring 23 from bending when compressed. Figure 4As shown, to ensure smoother resetting of the push rod 27, a third fixing block 28 is provided on the side wall of the push rod 27 within the second housing 2, and a second spring 30 is provided between the third fixing block 28 and the guide block 25. To prevent the second spring 30 from bending during compression, a second limiting pin 29 is provided on the guide block 25. The second limiting pin 29 passes through the third fixing block 28 and slides therewith, and the second spring 30 is sleeved on the second limiting pin 29. The second limiting pin 29 also limits the movement between the push rod 27 and the guide block 25.

[0032] like Figure 1 , Figure 2 and Figure 3 As shown, the second housing 2 has a spring plate 31 on its outer wall corresponding to the push rod 27, which engages with the free end of the push rod 27. The spring plate 31 increases the contact area between the user's fingers and the push rod 27, thereby improving the effectiveness of the user pressing the push rod 27.

[0033] Instructions for use: When hanging the walkie-talkie on the suspension device, simply place the device inside the clamping plate 3, then pull the walkie-talkie downwards. The device will move between the clamping plate 3 and the walkie-talkie body, and it will also push the rotating roller 14 on the locking component to rotate, thus preventing interference with the normal installation of the walkie-talkie on the device. To remove the walkie-talkie from the device, simply press the spring plates 31 on both sides of the second housing 2 with your fingers. The spring plates 31 will push the push rod 27 to move, and the push rod 27 will push the hanging rod 20 through the inclined block. The hanging rod 20, along with the inclined surface of the inclined block, will move the slider 12, the support shaft 13, and the rotating roller 14 on the support shaft 13 away from the clamping plate 3. At this point, the walkie-talkie can be lifted. After the walkie-talkie is removed, the spring plate 31 is released, and the spring plate 31 returns to its initial position by its own elasticity. The push rod 27 returns to its initial position by the second spring 30 between the third fixing block 28 and the guide block 25, and the slider 12 returns to its initial position by the first spring 23 between the first fixing block 21 and the second fixing block 22.

[0034] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. An intrinsically safe explosion-proof walkie-talkie, characterized in that: It includes the body, an antenna (4) on the top surface of the body and a knob (5) on the body for rotation, and a clamp (3) on the body; The body includes a first shell (1) and a second shell (2), which are detachably connected by a connector. A clamp (3) is provided on the side of the second shell (2) opposite to the first shell (1), and a dot key (32) is provided on the first shell (1). A mounting hole (10) is provided on the second housing (2), and a locking member that cooperates with the clamping plate (3) is provided on the second housing (2). The locking member includes sliders (12) respectively located on the inner walls of the mounting hole (10) on both sides of the second housing (2). A rotating roller (14) is rotatably provided between the two sliders (12) through a support shaft (13), and multiple protrusions (15) are distributed on the outer peripheral wall of the rotating roller (14). A limiting part is provided between the support shaft (13) and the slider (12).

2. The intrinsically safe explosion-proof walkie-talkie according to claim 1, characterized in that: The limiting part includes a ratchet (16) on the support shaft (13), a ratchet (18) on the slider (12) rotated by a rotating shaft (17), and a torsion spring (19) is sleeved on the rotating shaft (17). One end of the torsion spring (19) is connected to the ratchet (18), and the other end is connected to the slider (12).

3. The intrinsically safe explosion-proof walkie-talkie according to claim 2, characterized in that: The second housing (2) is provided with an unlocking component, and the unlocking component includes a guide rail (11) located on the inner wall of the second housing (2) corresponding to the position of each slider (12), and the slider (12) and its corresponding guide rail (11) are slidably configured; A first fixing block (21) is provided on one side wall of the guide rail (11), and a second fixing block (22) is provided on the side of the slider (12) away from the first fixing block (21). A first spring (23) is provided between the first fixing block (21) and the second fixing block (22). The bottom end of the guide rail (11) is provided with a guide block (25), and the guide block (25) has a guide hole (26). A push rod (27) is slidably provided in the guide hole (26). The push rod (27) has an inclined block at one end near the guide block (25), and the push rod (27) passes through the second housing (2) and is slidably provided therewith. A lifting rod (20) that cooperates with the inclined block is provided on the bottom surface of the slider (12).

4. The intrinsically safe explosion-proof walkie-talkie according to claim 3, characterized in that: The first fixing block (21) is provided with a first limiting pin (24), and the first limiting pin (24) passes through the second fixing block (22) and slides therewith. The first spring (23) is sleeved on the first limiting pin (24).

5. The intrinsically safe explosion-proof interphone according to claim 4, characterized in that ； The push rod (27) is provided with a third fixing block (28) on the side wall inside the second housing (2), and a second spring (30) is provided between the third fixing block (28) and the guide block (25).

6. An intrinsically safe explosion-proof intercom according to claim 5, Its characteristics are: The guide block (25) is provided with a second limiting pin (29), which passes through the third fixing block (28) and slides therewith, and the second spring (30) is sleeved on the second limiting pin (29).

7. The intrinsically safe, explosion-proof intercom of claim 5, wherein ； The second housing (2) has a spring plate (31) on the outer wall corresponding to the push rod (27) that cooperates with the free end of the push rod (27).

8. The intrinsically safe, explosion-proof intercom of claim 1, wherein ； The roller (14) is a rubber roller, and the protrusion (15) is made of rubber.

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