Wireless talkback loudspeaker

Abstract

The utility model discloses a wireless talkback horn, which comprises a horn body and a base, the front surface of the base is provided with a mounting groove, the back surface of the horn body is provided with a mounting block embedded in the mounting groove, and the left and right side walls of the mounting block are provided with a plurality of fixing holes along the long edge direction. Telescopic holes corresponding to the fixing holes are formed in the left groove wall and the right groove wall of the mounting groove, the telescopic holes penetrate through the side wall of the base, supporting clamping rings are arranged in the centers of the holes, and the top faces of the supporting clamping rings are elastically connected with fixing columns through telescopic springs; the ends, away from the fixing holes, of the fixing columns are provided with driving columns penetrating out of the telescopic holes, and the ends, located on the outer sides of the telescopic holes, of the multiple sets of driving columns are connected through driving connecting rods. And a drawing handle is arranged on the driving connecting rod.

Description

Technical Field

[0001] The utility model relates to the technical field of intercom, in particular to a wireless intercom speaker. Background Art

[0002] An intercom speaker is an electroacoustic device, mainly used in fields such as preaching, long-distance communication, and monitoring. With the continuous development of technology, intercom speakers are widely used and have functions such as recording and intercom. The structural components of an intercom speaker mainly include a speaker, a control component, a signal amplification component, and a sound collection component, etc. As an important communication tool, it is widely used in the radiology department of hospitals, the back kitchens of restaurants, 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 communication.

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

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

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

[0006] A wireless intercom speaker, including a speaker body and a base. An installation groove is opened on the front surface of the base. An installation block is provided on the back surface of the speaker body and is embedded in 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 provided on the left and right groove walls of the installation groove. The telescopic holes penetrate through to the side wall of the base, and a support snap ring is provided at the central position inside the holes. The top surface of the support snap ring is elastically connected to a fixing column through a telescopic spring, and the fixing column is pushed upward by the resilience of the telescopic spring and inserted into the fixing hole. One end of the fixing column away from the fixing hole is provided with a driving column that penetrates out of the telescopic hole. One ends of multiple groups of driving columns outside the telescopic holes are connected through a driving connecting rod, and a pulling handle is provided on the driving connecting rod.

[0007] Preferably, the outer diameter of the fixing column is closely fitted with the inner diameters of the telescopic hole and the fixing hole. A limiting slide bar is provided on the side wall of the fixing column. A limiting slide groove for the limiting slide bar to slide up and down is provided on the inner side wall of the telescopic hole along the circumferential direction. The height of the limiting slide groove is adapted to the depth of the fixing hole.

[0008] Preferably, a relief groove for the driving connecting rod to be snapped into is opened on the side wall of the base. The telescopic hole is connected to the bottom of the relief groove in a through manner.

[0009] Preferably, the left and right side walls of the driving connecting rod are provided with hollow grooves that pass through the left and right sides, and a support rod is rotatably arranged in the hollow groove through a pin. The side walls of the base are provided with positioning grooves that are cross-shaped with the give-way grooves, and the positioning grooves are for the bottom of the support rod to be inserted into and limit the left and right rotation of the support rod.

[0010] Preferably, the bottoms of the clearance grooves and the positioning grooves are both paved with elastic buffer pads.

[0011] Preferably, a plurality of threaded holes are provided at the bottom of the mounting groove, and the mounting groove is fixedly connected to the wall surface by threaded nails.

[0012] After adopting the above technical solution, the utility model has the following advantages compared with the background technology:

[0013] The utility model provides a wireless intercom speaker. The mounting block on the back of the speaker body is inserted into the mounting groove of the base. The supporting clamp in the telescopic hole supports a telescopic spring, and the fixing column is pushed up in the telescopic hole and inserted into the fixing hole by the resilience of the telescopic spring, so that the speaker body is fixed on the base. The two sides of the speaker body are fixed by a plurality of fixing columns. The speaker body has good stability, is firm and is not easy to shake. When disassembling, the driving connecting rod is pulled out of the yielding groove by a pull-out handle, and the driving connecting rod drives a plurality of fixing columns to overcome the resilience of the telescopic spring and disengage from the fixing hole. Then the supporting rod is rotated out of the hollow groove so that it and the driving connecting rod are in a cross state and embedded in the positioning groove, and the fixing column is kept in a disengaged state from the fixing hole, so that the speaker body is removed from the base. The installation is convenient, and there is no need to disassemble and assemble the screws. The speaker body is convenient for later maintenance or replacement, and the work efficiency of the maintenance personnel is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a cross-sectional view of the fixing hole position structure of the utility model;

[0016] Figure 3 This is a cross-sectional view of the driving connecting rod position structure of the utility model. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0018] It should be noted that in the present invention, the terms "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element of the present invention must have a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0019] Example

[0020] Please refer to Figures 1 to 3 As shown, the utility model discloses a wireless intercom speaker, including a speaker body 1 and a base 2, a mounting groove 21 is provided on the front of the base 2, a mounting block 3 embedded in the mounting groove is provided on the back of the speaker body 1, a plurality of fixing holes 31 are provided on the left and right side walls of the mounting block 3 along the long side direction, and telescopic holes 22 corresponding to the fixing holes 31 are provided on the left and right groove walls of the mounting groove 21, the telescopic holes 22 penetrate to the side walls of the base 2, and a supporting clamp ring 23 is provided at the center position of the telescopic hole, a fixing column 5 is elastically connected to the top surface of the supporting clamp ring 23 through a telescopic spring 4, and the fixing column 5 is pushed up and inserted into the fixing hole 31 by the rebound force of the telescopic spring 4, a driving column 6 passing through the telescopic hole 22 is provided at one end of the fixing column 5 away from the fixing hole 31, and a plurality of groups of driving columns 6 are connected at one end located outside the telescopic hole 22 through a driving connecting rod 7, and a pulling handle 8 is provided on the driving connecting rod 7.

[0021] The outer diameter of the fixed column 5 is closely matched with the inner diameter of the telescopic hole 22 and the fixed hole 31. The side wall of the fixed column 5 is provided with a limiting slide bar 51. The inner wall of the telescopic hole 22 is circumferentially provided with a limiting slide groove 24 for the limiting slide bar 51 to slide up and down. The height of the limiting slide groove 24 is matched with the depth of the fixed hole 31.

[0022] The side wall of the base 2 is provided with a clearance groove 25 for accommodating the driving connecting rod 7 to be inserted therein, and the telescopic hole 22 is connected through the bottom of the clearance groove 31 .

[0023] The left and right side walls of the driving connecting rod 7 are provided with a hollow groove 71 that passes through the left and right sides, and a support rod 73 is rotatably arranged in the hollow groove 71 through a pin 72. The side wall of the base 2 is provided with a positioning groove 26 that is cross-shaped with the give way groove 25. The positioning groove 26 is for the bottom of the support rod 73 to be inserted and limit the left and right rotation of the support rod 73.

[0024] The bottoms of the clearance groove 25 and the positioning groove 26 are both paved with elastic buffer pads.

[0025] A plurality of threaded holes 27 are formed at the bottom of the installation groove 21, and the base 2 is fixedly connected to the wall by threaded nails.

[0026] The above are only the preferred specific embodiments 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 speaker, characterized by: The speaker comprises a speaker body and a base, wherein a mounting groove is provided on the front side of the base, and a mounting block embedded in the mounting groove is provided on the back side of the speaker body, and a plurality of fixing holes are provided on the left and right side walls of the mounting block along the long side direction, and telescopic holes corresponding to the fixing holes are provided on the left and right groove walls of the mounting groove, and the telescopic holes penetrate through the side walls of the base, and a supporting clamp is provided at the center position of the hole, and a fixing column is elastically connected to the top surface of the supporting clamp by a telescopic spring, and the fixing column is pushed up and inserted into the fixing hole by the rebound force of the telescopic spring, and a driving column passing through the telescopic hole is provided at one end of the fixing column away from the fixing hole, and a plurality of groups of driving columns are connected at one end outside the telescopic holes by a driving connecting rod, and a pulling handle is provided on the driving connecting rod.

2. A wireless intercom speaker as claimed in claim 1, characterized in that: The outer diameter of the fixed column is closely matched with the inner diameter of the telescopic hole and the fixed hole. The side wall of the fixed column is provided with a limiting slide bar. The inner side wall of the telescopic hole is circumferentially provided with a limiting slide groove for the limiting slide bar to slide up and down. The height of the limiting slide groove is matched with the depth of the fixed hole.

3. A wireless intercom speaker as claimed in claim 1, characterized in that: The side wall of the base is provided with a clearance groove for accommodating the driving connecting rod to be inserted therein, and the telescopic hole is connected through the bottom of the clearance groove.

4. A wireless intercom speaker as claimed in claim 3, characterized in that: The left and right side walls of the driving connecting rod are provided with hollow grooves that pass through the left and right sides, and a support rod is rotatably arranged in the hollow groove through a pin. The side walls of the base are provided with positioning grooves that are cross-shaped with the give-way grooves, and the positioning grooves are used for the bottom of the support rod to be inserted and limit the left and right rotation of the support rod.

5. A wireless intercom speaker as claimed in claim 4, characterized in that: The bottoms of the clearance groove and the positioning groove are both paved with elastic buffer pads.

6. The wireless intercom speaker according to 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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