Interphone with 360-degree push-type knob

Abstract

The utility model belongs to the technical field of interphones, and discloses an interphone with a 360-degree press-type knob, which comprises an interphone body, a knob cap and a press-type knob encoder, the interphone body is provided with a jack, the press-type knob encoder is electrically connected with a circuit board of the interphone body, and the press-type knob encoder is electrically connected with the circuit board of the interphone body. The push-type knob encoder is arranged in the interphone body, the knob cap comprises a knob cover and a connecting column, the connecting column is formed on one side of the knob cover, one end, far away from the knob cover, of the connecting column extends into the interphone body from the insertion hole, and the other end, far away from the knob cover, of the connecting column is connected with a shaft rod on the push-type knob encoder through a dismounting part; the connecting column of the knob cap is embedded into the limiting groove of the shaft rod through the spring and the ball bead, circumferential torque transmission and axial fixation are formed, it is ensured that power transmission is stable during rotating operation, loosening or falling is avoided, the whole disassembling and assembling process can be operated without tools, and assembling efficiency and later disassembling and maintaining convenience are effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to intercom technical field especially intercom with 360 degree press type knob. BACKGROUND

[0002] As the core equipment of real-time wireless communication, intercom undertakes the key communication task in emergency rescue, public safety, industrial production and transportation scenes. With the popularization of digital evolution of narrowband communication technology and Internet of Things application, intercom is transforming from single voice communication tool to multifunctional intelligent terminal, and users put forward higher dimensional demand to the operation efficiency, integration degree and maintenance convenience of equipment. At present, press type knob encoder is widely used as the mainstream interactive element.

[0003] At present, when the press type knob encoder is assembled, the knob cap is generally connected with the shaft rod of the encoder by screws, so that the assembler needs to use tools for assembly during assembly, and the assembly efficiency is low. Moreover, when the encoder fails, the maintenance personnel needs to use tools to remove the screws, separate the knob cap from the shaft rod of the encoder, and then take out the encoder from the intercom, which is relatively cumbersome.

[0004] Therefore, we propose an intercom with 360 degree press type knob. CONTENT OF UTILITY MODEL

[0005] The utility model aims at providing an intercom with 360 degree press type knob, so as to solve or at least alleviate one or more of the above problems and other aspects in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the main technical scheme including:

[0007] An intercom with 360 degree press type knob, comprising an intercom body, a knob cap and a press type knob encoder, a jack is formed on the intercom body, the press type knob encoder is electrically connected with the circuit board of the intercom body, the press type knob encoder is arranged in the interior of the intercom body, the knob cap comprises a knob cover and a connecting column, the connecting column is formed on one side of the knob cover, one end of the connecting column away from the knob cover extends into the interior of the intercom body from the jack, and the other end of the connecting column away from the knob cover is connected with the shaft rod on the press type knob encoder through a dismounting piece.

[0008] A slot is formed in the other end of the connecting column away from the knob cover, and one end of the shaft rod is inserted into the slot.

[0009] The dismounting piece comprises a spring and a ball, a groove in communication with the insertion slot is formed in the inner wall of the connecting column, the spring and the ball are arranged in the groove, one end of the spring abuts against one end of the groove, and the other end of the spring abuts against the ball, and a limiting groove is formed in the upper end of the shaft rod, and a part of the ball is pressed into the limiting groove by the spring.

[0010] In the intercom with the 360-degree press type knob according to the utility model, the side surface of the shaft rod is provided with at least one limiting section surface, and the cross-sectional shape of the insertion slot is matched with the cross-sectional shape of the upper end of the shaft rod.

[0011] In the intercom with the 360-degree press type knob according to the utility model, the lower end of the knob cover is provided with an annular cutout.

[0012] In the intercom with the 360-degree press type knob according to the utility model, the intercom body is provided with inclined surfaces, the inclined surfaces are provided in two, and the two inclined surfaces are arranged on the two sides of the knob cover.

[0013] In the intercom with the 360-degree press type knob according to the utility model, the top of the shaft rod is provided with a chamfer.

[0014] In the intercom with the 360-degree press type knob according to the utility model, the upper surface of the knob cover is provided with a plurality of anti-skid protrusions, and the plurality of anti-skid protrusions are arranged in a circular equidistant array on the knob cover.

[0015] The utility model at least has following beneficial effects:

[0016] The connecting column of the knob cap is embedded into the limiting groove of the shaft rod through the spring and the ball, circumferential torque transmission and axial fixation are formed, power transmission is stable during rotation operation, loosening or falling off is avoided, the whole dismounting process can be operated without using tools, and the assembly efficiency and the later dismounting and maintenance convenience are effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application, the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application.

[0018] Figure 1 It is a cross-sectional structure schematic view of the utility model;

[0019] Figure 2 It is Figure 1 A enlarged structure schematic view of the A part in the utility model;

[0020] Figure 3The utility model discloses a knob cap's structure schematic drawing;

[0021] Figure 4 The utility model discloses a knob cap's section structure schematic drawing;

[0022] Figure 5 The utility model discloses a 360 degree press type knob encoder's structure schematic drawing;

[0023] Figure 6 The utility model discloses a structure schematic drawing;

[0024] Figure 7 The utility model discloses a press type knob encoder and circuit board's circuit principle drawing.

[0025] Figure legend explains:

[0026] 1, interphone body;101, jack;102, bevel;2, press type knob encoder;201, axle rod;202, limit section;203, limit groove;3, knob cap;301, knob cover;302, connecting column;303, annular cutout;304, antiskid convex;305, slot;306, recess;307, spring;308, ball. Specific implementation

[0027] The following will cooperate with the drawings and examples to explain the embodiment of the present application in detail, by which the realization process that the present application applies technical means to solve technical problems and achieves technical effects can be fully understood and implemented.

[0028] Please refer to Figures 1 to 7 The utility model discloses an embodiment,

[0029] A kind of intercom with 360 degree press type knob, including interphone body 1, press type encoder 2 and knob cap 3, jack 101 is set up on interphone body 1, press type encoder 2 and the circuit board of interphone body 1 are electrically connected, press type encoder 2 is set in the inside of interphone body 1, knob cap 3 includes knob cover 301 and connecting column 302, connecting column 302 is shaped in the side of knob cover 301, the end of connecting column 302 away from knob cover 301 from jack 101 extends into the inside of interphone body 1, the end of connecting column 302 away from knob cover 301 is connected with the axle rod 201 on press type encoder 2 by dismounting spare part;

[0030] The end of connecting column 302 away from knob cover 301 is equipped with slot 305, and one end of axle rod 201 is inserted in slot 305;

[0031] The disassembling part includes a spring 307 and a ball 308, the inner wall of the connecting column 302 is provided with a groove 306 communicating with the slot 305, the spring 307 and the ball 308 are arranged in the groove 306, one end of the spring 307 abuts against one end of the groove 306, and the other end of the spring 307 abuts against the ball 308. The upper end of the shaft 201 is provided with a limiting groove 203, and part of the ball 308 is pressed into the limiting groove 203 by the spring 307.

[0032] The knob cap is connected with the encoder: the connecting column 302 is sleeved on the shaft 201 through the slot 305, the spring 307 pushes the ball 308 to embed into the limiting groove 203 of the shaft 201, a buckle type locking is formed, and the circumferential torque transmission and axial fixation of the knob cap 3 and the encoder shaft 201 are realized.

[0033] In the embodiment, the press type knob encoder 2 adopts an encoder with a model of RE07111M-LM9.0C3.5-4B10-200G, which supports 10 pulses / 360° and a press switch function.

[0034] In the embodiment, the side surface of the shaft 201 is provided with at least one limiting section surface 202, and the cross-sectional shape of the slot 305 is matched with the cross-sectional shape of the upper end of the shaft 201.

[0035] The limiting section surface 202 makes the cross section of the shaft 201 non-circular, the inner wall of the slot 305 matches the shape, the synchronous rotation of the shaft 201 and the connecting column 302 is ensured, the signal loss caused by circumferential slip is avoided, and the limiting section surface 202 can increase the contact area and improve the torque transmission efficiency.

[0036] In the embodiment, the lower end of the knob cover 301 is provided with an annular notch 303, the intercom body 1 is provided with a slope 102, the slope 102 is provided with two, and the two slopes 102 are arranged on the two sides of the knob cover 301.

[0037] The annular notch 303 cooperates with the slope 102, so that there is a gap between the bottom edge of the knob cover 301 and the surface of the intercom body 1, the operator can easily hold the knob cover 301, and the connecting column 302 can be pulled out of the shaft 201.

[0038] In the embodiment, the top of the shaft 201 is provided with a chamfer. The chamfer can reduce the resistance when the shaft 201 is inserted into the slot 305, and improve the assembly convenience.

[0039] In the embodiment, the upper surface of the knob cover 301 is provided with a plurality of anti-skid protrusions 304, and the plurality of anti-skid protrusions 304 are circularly and equidistantly arranged on the knob cover 301.

[0040] The anti-skid protrusions 304 increase the friction coefficient of the contact surface, and reduce the slip probability of the rotating knob cover 301.

[0041] In the specific assembly, the knob cover 301 on the knob cap 3 is inserted into the insertion hole 101, the connecting column 302 is sleeved on the shaft rod 201 through the insertion slot 305, the spring 307 pushes the ball 308 to be embedded into the limiting groove 203 of the shaft rod 201, a buckle type locking is formed, the circumferential torque transmission and axial fixation of the knob cap 3 and the encoder shaft rod 201 are realized, when it is needed to disassemble the knob cap 3, only the annular notch 303 at the edge of the knob cover 301 is held by hand, then the knob cover 301 is pulled away from the interphone body 1, so that the ball 308 is pressed out from the inside of the limiting groove 203, thereby the quick disassembly operation is realized.

[0042] The above description shows and describes several preferred embodiments of the utility model, but as before, it should be understood that the utility model is not limited to the forms disclosed herein, should not be regarded as excluding other embodiments, and can be used in various other combinations, modifications and environments, and can be changed within the scope of the utility model concept disclosed herein through the above teaching or related technical or knowledge. The changes and variations made by the person skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the protection scope of the claims attached to the utility model.

Claims

1. A talkback having a 360 degree push knob, characterized by, The intercom body (1) is provided with a jack (101), the press knob encoder (2) is electrically connected with the circuit board of the intercom body (1), the press knob encoder (2) is arranged in the intercom body (1), the knob cap (3) comprises a knob cover (301) and a connecting column (302), the connecting column (302) is formed on one side of the knob cover (301), one end of the connecting column (302) away from the knob cover (301) extends into the interior of the intercom body (1) from the jack (101), and one end of the connecting column (302) away from the knob cover (301) is connected with a shaft rod (201) on the press knob encoder (2) through a detachable part. One end of the shaft rod (201) is inserted into the insertion slot (305). The detachable part comprises a spring (307) and a ball (308), an inner wall of the connecting column (302) is provided with a groove (306) in communication with the insertion slot (305), the spring (307) and the ball (308) are arranged in the groove (306), one end of the spring (307) abuts against one end of the groove (306), the other end of the spring (307) abuts against the ball (308), and the upper end of the shaft rod (201) is provided with a limiting slot (203), and part of the ball (308) is pressed into the limiting slot (203) by the spring (307).

2. A speakerphone having a 360 degree push-to-talk knob as defined in claim 1, wherein: The side surface of the shaft rod (201) is provided with at least one limiting surface (202), and the cross-sectional shape of the insertion slot (305) is matched with the cross-sectional shape of the upper end of the shaft rod (201).

3. A speakerphone having a 360 degree push-to-talk knob as defined in claim 1, wherein: The lower end of the knob cover (301) is provided with an annular cutout (303).

4. A speakerphone having a 360 degree push-to-talk knob as defined in claim 3, wherein: The intercom body (1) is provided with inclined surfaces (102), the inclined surfaces (102) are provided with two, and the two inclined surfaces (102) are arranged on the two sides of the knob cover (301).

5. A speakerphone having a 360 degree push-to-talk knob as defined in claim 1, wherein: The top of the shaft rod (201) is provided with a chamfer.

6. A speakerphone having a 360 degree push-to-talk knob as defined in claim 1, wherein: The upper surface of the knob cover (301) is provided with a plurality of anti-skid protrusions (304), and the plurality of anti-skid protrusions (304) are circularly and equidistantly arranged on the knob cover (301).

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