Wireless talkback loudspeaker

Abstract

The utility model discloses a wireless talkback loudspeaker, which comprises a loudspeaker body and a bottom plate, the front surface of the bottom plate is provided with an installation groove, the back surface of the loudspeaker body is provided with an installation block embedded in the installation groove, and the left and right side walls of the installation block are provided with a plurality of fixing holes along the long edge direction. The left groove wall and the right groove wall of the mounting groove are provided with telescopic holes corresponding to the fixing holes, the left side and the right side in the bottom plate are each provided with an adjusting cavity, the left cavity wall of each adjusting cavity communicates with the corresponding telescopic hole, and the side wall of the bottom plate is provided with a drawing hole communicating with the right cavity wall of the corresponding adjusting cavity. A linkage rod sliding left and right is arranged in the adjusting cavity, a fixing column corresponding to the telescopic hole is arranged on the inner side wall of the linkage rod, and the outer side wall of the linkage rod is elastically connected with the inner wall of the adjusting cavity through a telescopic spring; and the linkage rod is pushed to move towards the direction of the telescopic hole through resilience force of the telescopic spring, so that the fixing column is inserted into the fixing hole.

Description

Technical Field

[0001] The utility model relates to the technical field of loudspeakers, and particularly relates to a wireless intercom loudspeaker. Background Art

[0002] An intercom loudspeaker is an electroacoustic device, mainly used in fields such as preaching, long-distance communication, and monitoring. With the continuous development of technology, wireless portable loudspeakers are widely used. Current wireless portable loudspeakers generally also have functions such as recording and intercom. Its structural components mainly include a loudspeaker, a control component, a signal amplification component, and a sound collection component, etc. As an important communication tool, it is widely used in hospital radiology departments, restaurant kitchens, factories, warehouses, stations, weighing rooms, express stations, scenic spots, schools, etc. It has a louder received volume than walkie-talkies in noisy environments, bringing great convenience to people's information exchange.

[0003] Existing intercom loudspeakers are relatively mature, but most of them directly fix the wireless intercom loudspeaker on the wall using screws. This fixing method is rather troublesome during later maintenance and replacement, reducing the work efficiency of maintenance personnel. Content of the Utility Model

[0004] The purpose of the utility model is to provide a wireless intercom loudspeaker to solve the above problems.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A wireless intercom loudspeaker includes a loudspeaker body and a bottom plate. An installation groove is opened on the front surface of the bottom plate, and an installation block is arranged on the back surface of the loudspeaker body and is inserted into the installation groove. A plurality of fixing holes are opened on the left and right side walls of the installation block along the long side direction. Corresponding telescopic holes are arranged on the left and right groove walls of the installation groove. A regulating cavity is respectively arranged on the left and right sides inside the bottom plate. The left cavity wall of the regulating cavity is communicated with the telescopic hole. A pulling hole is opened on the side wall of the bottom plate and is communicated with the right cavity wall of the regulating cavity. A linkage rod that slides left and right is arranged inside the regulating cavity. A fixing column corresponding to the telescopic hole is arranged on the inner side wall of the linkage rod. The outer side wall of the linkage rod is elastically connected with the inner wall of the regulating cavity through a telescopic spring, and the return force of the telescopic spring is used to push the linkage rod towards the telescopic hole direction so as to insert the fixing column into the fixing hole. A pulling column is movably arranged inside the pulling hole. One end of the pulling column is connected with the linkage rod, and the other end is provided with a pulling ring located outside the pulling hole.

[0007] Preferably, slide rails are arranged on the upper and lower side walls of the linkage rod, and sliding grooves for the slide rails to be inserted into and slide left and right are arranged on the inner wall of the regulating cavity.

[0008] Preferably, a rotary head is rotatably connected to one end of the draw rod away from the linkage rod. The outer wall of the rotary head fits against the inner wall of the draw hole. A limiting block is provided on the outer wall of the rotary head, and a relief groove for the front-back sliding of the limiting block is provided on the inner wall of the draw hole. The draw ring is arranged at the top of the limiting block.

[0009] Preferably, a limiting groove is provided on the side wall of the bottom plate and on the periphery of the draw hole. The limiting groove is arranged in a dislocation manner with the relief groove for the rotary head to be pulled out of the draw hole and rotated to snap the limiting block into it. The depth of the limiting groove is less than the height of the limiting block.

[0010] Preferably, a plurality of threaded holes are opened at the bottom of the installation groove and are fixedly connected to the wall surface by threaded nails.

[0011] After adopting the above technical solution, compared with the background technology, the present utility model has the following advantages:

[0012] The present utility model provides a wireless intercom loudspeaker. The mounting block on the back of the loudspeaker body is inserted into the mounting groove of the bottom plate. The resilience of the telescopic spring in the adjustment cavity pushes the linkage rod to move towards the telescopic hole direction. The fixing column is inserted into the fixing hole, thereby fixing the loudspeaker body on the bottom plate. And with the cooperation of multiple fixing columns on both sides, the fixing effect is good and it is not easy to shake. When disassembling, pull out the draw rod, and the draw rod drives the fixing column to disengage from the fixing hole, thereby removing the loudspeaker body from the bottom plate. The installation is convenient, there is no need to disassemble and assemble the screws, which is convenient for later maintenance or replacement, and improves the work efficiency of maintenance personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the present utility model;

[0014] Figure 2 is a cross-sectional view of the internal structure at the position of the adjustment cavity of the present utility model;

[0015] Figure 3 is a schematic structural diagram at the position of the draw hole of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] In order to make the purpose, technical solution and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0017] It should be noted that in the present utility model, terms such as "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are all based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element of the present utility model must have a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0018] Embodiment

[0019] Please refer to Figures 1 to 3 As shown, the present utility model discloses a wireless intercom loudspeaker, which includes a loudspeaker body 1 and a bottom plate 2. An installation groove 21 is formed on the front surface of the bottom plate 2. An installation block 11 is provided on the back surface of the loudspeaker body 1 and is inserted into the installation groove 21. A plurality of fixing holes 12 are formed on the left and right side walls of the installation block 11 along the long side direction. Corresponding telescopic holes 22 are provided on the left and right groove walls of the installation groove 21. A regulating cavity 23 is respectively provided on the left and right sides inside the bottom plate 2. The left cavity wall of the regulating cavity 23 is communicated with the telescopic hole 22. A pulling hole 24 is formed on the side wall of the bottom plate 2 and is communicated with the right cavity wall of the regulating cavity 23. A linkage rod 3 that slides left and right is provided inside the regulating cavity 23. A fixing column 4 corresponding to the telescopic hole 22 is provided on the inner side wall of the linkage rod 3. The outer side wall of the linkage rod 3 is elastically connected to the inner wall of the regulating cavity 23 through a telescopic spring 5, and the return force of the telescopic spring 5 is used to push the linkage rod 3 towards the telescopic hole 22 so as to insert the fixing column 4 into the fixing hole 12. A pulling column 6 is movably provided in the pulling hole 24. One end of the pulling column 6 is connected to the linkage rod 3, and the other end is provided with a pulling ring 61 located outside the pulling hole 24.

[0020] Sliding rails 31 are provided on the upper and lower side walls of the linkage rod 3, and sliding grooves 27 for the sliding rails 31 to be engaged and slide left and right are provided on the inner wall of the regulating cavity 23.

[0021] One end of the pulling column 6 away from the linkage rod 3 is rotatably connected with a rotating head 62. The outer wall of the rotating head 62 is attached to the inner wall of the pulling hole 24. A limiting block 63 is provided on the outer wall of the rotating head 62. A relief groove 25 for the limiting block 63 to slide back and forth is provided on the inner wall of the pulling hole 24. The pulling ring 61 is provided at the top of the limiting block 63.

[0022] A limiting groove 26 is provided on the side wall of the bottom plate 2 and on the periphery of the pulling hole 24. The limiting groove 26 is arranged in a dislocation manner with the relief groove 25 for the limiting block 63 to be engaged after the rotating head 62 is pulled out from the pulling hole 24 and rotated. The depth of the limiting groove 26 is less than the height of the limiting block 63.

[0023] A plurality of threaded holes 28 are formed on the bottom of the installation groove 21, and it is fixedly connected to the wall surface through threaded nails.

[0024] As described above, it is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present utility model should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims

1. A wireless intercom loudspeaker, characterized in that: The invention comprises a loudspeaker body and a bottom plate, the front side of the bottom plate is provided with a mounting groove, the back side of the loudspeaker body is provided with a mounting block inserted into the mounting groove, the left and right side walls of the mounting block are provided with a plurality of fixing holes along the long side direction, the left and right groove walls of the mounting groove are provided with telescopic holes corresponding to the fixing holes, an adjusting cavity is respectively provided on the left and right sides of the bottom plate, the left cavity wall of the adjusting cavity is connected with the telescopic hole, the side wall of the bottom plate is provided with a pulling hole connected with the right cavity wall of the adjusting cavity, a linkage rod sliding left and right is provided in the adjusting cavity, the inner side wall of the linkage rod is provided with a fixing column corresponding to the telescopic hole, the outer side wall of the linkage rod is elastically connected to the inner wall of the adjusting cavity by a telescopic spring, and the linkage rod is pushed to move in the direction of the telescopic hole by the rebound force of the telescopic spring so as to insert the fixing column into the fixing hole, and a pulling column is movably provided in the pulling hole, one end of the pulling column is connected with the linkage rod, and the other end is provided with a pulling ring located outside the pulling hole.

2. A wireless intercom loudspeaker as claimed in claim 1, characterized in that: The upper and lower side walls of the linkage rod are provided with slide rails, and the inner wall of the adjustment cavity is provided with slide grooves for the slide rails to be inserted into and slide left and right.

3. A wireless intercom loudspeaker as claimed in claim 1, characterized in that: The end of the pulling column away from the linkage rod is rotatably connected to a rotating head, the outer wall of the rotating head is in contact with the inner wall of the pulling hole, a limiting block is arranged on the outer wall of the rotating head, the inner wall of the pulling hole is provided with a clearance groove for accommodating the limit block to slide forward and backward, and the pulling ring is arranged on the top of the limit block.

4. A wireless intercom loudspeaker as claimed in claim 3, characterized in that: The side wall of the bottom plate and the surrounding side of the pull-out hole are provided with a limiting groove, and the limiting groove and the giving way groove are staggered so that the rotating head can be pulled out of the pull-out hole and rotated to engage the limiting block, and the depth of the limiting groove is less than the height of the limiting block.

5. A wireless intercom loudspeaker as claimed in claim 1, characterized in that: The bottom of the installation groove is provided with a plurality of threaded holes, and is fixedly connected to the wall surface by threaded nails.

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