CN215722332U

CN215722332U - Bus system five-party intercom system

Info

Publication number: CN215722332U
Application number: CN202121653189.6U
Authority: CN
Inventors: 卫金法
Original assignee: Shanghai Qiutong Control Electric Co ltd
Current assignee: Shanghai Qiutong Control Electric Co ltd
Priority date: 2021-07-20
Filing date: 2021-07-20
Publication date: 2022-02-01
Anticipated expiration: 2031-07-20

Abstract

The utility model discloses a bus-system five-way intercom system, which comprises a machine room handle machine, a car top interphone, a pit interphone, a car interphone, a duty room host machine, a decoder and a system power supply, wherein the car top interphone, the pit interphone, the car interphone, the duty room host machine and the decoder are respectively in communication connection with the machine room handle machine through communication lines, the car interphone comprises a microphone amplifier, an audio power amplification circuit for a loudspeaker, a sending and receiving attenuator, a background noise level detection system and an attenuator control system, the power amplification circuit realizes local telephone transmission, and the decoder is a general phase-locked loop circuit tone decoder. The utility model adopts the cable to connect to the decoder as the subsystem, connect subsystem and the host computer of the on-duty room to form the bus intercom system through the four-core bus finally; the bus is adopted to carry out voice communication between the interphones, so that the connection between the interphones is greatly reduced while the clear conversation is ensured.

Description

Bus system five-party intercom system

Technical Field

The utility model relates to the technical field of elevator intercom equipment, in particular to a bus-system five-party intercom system.

Background

Elevators have been popularized from high-grade business office buildings, hotels and markets to high-rise residential buildings and enter residential districts, the application of the elevators is also developed from single-office elevators to large-area multi-office elevator cluster application, along with the continuous popularization of the application environment, the importance of elevator management is more obvious, along with the large-area use of the elevators, an elevator communication system is also developed from a simple single-office elevator emergency call system to a multi-office call system, a plurality of elevator cluster communication systems which can be networked in a large area at present enable dozens of or even hundreds of elevator emergency call systems in a large-scale district to be networked together to form an elevator multi-office communication system, in the system, each elevator has a fixed code extension, and a car auxiliary machine, a car roof, a pit extension and a machine room extension in each elevator can be in call and talk with a management center or a duty room when meeting emergency situations, the management center can also communicate with a car auxiliary machine, a car roof extension machine, a pit extension machine and a machine room extension machine in any elevator;

however, the existing elevator intercom has poor anti-collision performance, is easy to damage due to the false collision of people taking the bedding, and is easy to mistakenly touch an intercom button to cause false alarm when a plurality of people take the elevator, so that a bus-system five-party intercom system is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a bus-system five-party intercom system, which has good anti-collision performance and effectively avoids false alarm caused by easily and mistakenly touching an intercom button so as to solve the problems in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a five sides of total system intercom systems, includes computer lab handle machine, sedan-chair top intercom, pit intercom, car intercom, on duty room host computer, decoder and system power, sedan-chair top intercom, pit intercom, car intercom, on duty room host computer, decoder are respectively through communication line and computer lab handle machine communication connection, the car intercom includes a microphone amplifier, an audio power amplifier circuit, sending and receiving attenuator, background noise level detecting system and an attenuator control system who is used for the speaker, power amplifier circuit realizes local phone call, the decoder is general phase-locked loop circuit tone decoder.

As a preferred scheme, the car interphone further comprises an L-shaped placing block, a groove is formed in the L-shaped placing block, the lower end of the interphone is inserted into the groove, two groups of inserting columns are fixedly connected to one side of the interphone, through holes corresponding to the inserting columns are formed in the side wall of the L-shaped placing block, the two groups of inserting columns are inserted into the through holes in a sliding mode, a first compression spring is sleeved on the outer wall of each inserting column, and two ends of the first compression spring respectively abut against the side wall of the L-shaped placing block and the side wall of the interphone;

the novel interphone is characterized in that a hollow tube is arranged on the outer side of each interphone key, two groups of rectangular blocks with through holes are arranged on the inner wall of each hollow tube, a cross rod is inserted into each rectangular block in a sliding mode, one end of each cross rod is fixedly connected with a pressing block, and each pressing block is located inside each hollow tube.

Preferably, an elastic rubber ring with a smooth outer wall is fixedly sleeved on the outer wall of the pressing block and is attached to the inner wall of the hollow pipe.

As a preferred scheme, a threaded column is integrally formed at the lower end of the interphone, a through hole is formed at the lower end of the L-shaped placing block, and one end of the threaded column penetrates through the through hole and is locked and fixed through a nut.

According to the preferable scheme, a connecting column is fixedly welded on the other side of the L-shaped placing block, an installing piece is arranged at one end of the connecting column, and an installing hole for a bolt to penetrate through is formed in the installing piece.

According to the preferable scheme, a rubber cushion block is fixedly bonded on the inner wall of the groove, the rubber cushion block is set to be an elastic rubber cushion block, and the rubber cushion block abuts against the outer wall of the interphone.

As the preferred scheme, the outer wall of the cross rod is sleeved with a second compression spring, two ends of the second compression spring respectively abut against the side wall of the rectangular block and the side wall of the pressing block, and a top column is arranged on one side of the pressing block.

In summary, due to the adoption of the technology, the utility model has the beneficial effects that:

1. according to the utility model, two groups of plug columns are fixedly connected to one side of the interphone, through holes corresponding to the plug columns are formed in the side wall of the L-shaped placing block, and the first compression spring is sleeved on the outer wall of each plug column, so that the interphone can be buffered when the interphone is collided, and the anti-collision performance of the interphone is improved;

2. according to the utility model, the hollow pipe is arranged outside the interphone button, the two groups of rectangular blocks with the through holes are arranged on the inner wall of the hollow pipe, the cross rod is inserted in the rectangular blocks in a sliding mode, the press block is fixedly connected to one end of the cross rod, and the press block is arranged in the hollow pipe, so that false alarm caused by the fact that the interphone button is easily touched by mistake is effectively avoided.

Drawings

FIG. 1 is a schematic structural diagram of a bus-based five-way intercom system of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 according to the present invention;

FIG. 3 is a schematic structural view of a threaded post according to the present invention;

FIG. 4 is a block diagram of a bus-based five-way intercom system of the present invention;

fig. 5 is a block diagram of a bus power supply system according to embodiment 4 of the present invention.

In the figure: 1. an L-shaped placement block; 2. an interphone; 3. a groove; 4. inserting the column; 5. a via hole; 6. a first compression spring; 7. a hollow tube; 8. a rectangular block; 9. a cross bar; 10. briquetting; 11. a second compression spring; 12. an elastic rubber ring; 13. a top pillar; 14. a threaded post; 15. a through hole; 16. a nut; 17. connecting columns; 18. mounting a sheet; 19. mounting holes; 20. and a rubber cushion block.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Example 1

As shown in fig. 4, a bus-based five-party intercom system comprises a machine room handle machine, a car top intercom, a pit intercom, a car intercom, a duty room host, a decoder and a system power supply, wherein the car top intercom, the pit intercom, the car intercom, the duty room host and the decoder are respectively in communication connection with the machine room handle machine through communication lines, the car intercom comprises a microphone amplifier, an audio power amplification circuit for a loudspeaker, a sending and receiving attenuator, a background noise level detection system and an attenuator control system, the power amplification circuit realizes local telephone transmission, and the decoder is a general phase-locked loop circuit tone decoder;

wherein, the hardware circuit of the host computer is designed and realized; the power amplification circuit realizes local telephone transmission, and an LM386 audio amplifier is adopted, so that the local telephone transmission has the advantages of adjustable gain, low self power consumption, adjustable gain, few external devices, small harmonic distortion and the like;

the system ringing alarm circuit adopts CD4060 to send out a pulse signal with fixed frequency of 13.6 KHz; a decoding and decoding circuit, adopting LM567 as a tone decoder of a general phase-locked loop circuit; the car auxiliary machine hands-free circuit design adopts BL34018, combines necessary amplifier, attenuator and several control functions to design a high-quality hands-free call circuit, which comprises a microphone amplifier, an audio power amplifier for a loudspeaker, a transmitting and receiving attenuator, a background noise level detection system and an attenuator control system, so as to react to the transmitting and receiving level better than the background noise. The side tone elimination adopts an audio transformer design;

the communication line adopts 485 communication line transmission and needs to use twisted-pair lines, a 485 relay needs to be added when the number of the communication lines exceeds 32, and 3 relays need to be added when the number of the communication lines exceeds 99; the communication line 0.75mm2 can transmit 2Km, the attenuation is less than 10dB, and the number of stations is not limited; the 485 relay needs 9-12V power supply, there can be decoders sharing a group of power supply, and only one decoder of each 32 decoders is allowed to be connected with a 120 omega load resistor (the decoder is provided with a switch-on switch).

Example 2

The utility model provides a bus-system five-way intercom system as shown in figures 1-3, which comprises an interphone 2 and an L-shaped placing block 1 for placing the interphone, wherein a groove 3 is formed in the L-shaped placing block 1, the lower end of the interphone 2 is inserted into the groove 3, one side of the interphone 2 is fixedly connected with two groups of inserting columns 4, a through hole 5 corresponding to the inserting column 4 is formed in the side wall of the L-shaped placing block 1, the two groups of inserting columns 4 are inserted into the through hole 5 in a sliding manner, a first compression spring 6 is sleeved on the outer wall of each inserting column 4, and two ends of each first compression spring 6 respectively abut against the side wall of the L-shaped placing block 1 and the side wall of the interphone 2;

a second compression spring 11 is sleeved on the outer wall of the cross rod 9, two ends of the second compression spring 11 respectively abut against the side wall of the rectangular block 8 and the side wall of the pressing block 10, and a top column 13 is arranged on one side of the pressing block 10;

through two sets of peg graft posts 4 of one side fixedly connected with at intercom 2, set up on the lateral wall that the piece 1 was placed to the L shape with peg graft post 4 corresponding via hole 5 to and the cover is equipped with first compression spring 6 on the outer wall of peg graft post 4, when intercom 2 was hit, can cushion intercom 2, improved intercom 2's crashproof performance.

Example 3

On the basis of the embodiment 1, the outer side of a key of the interphone 2 is provided with a hollow tube 7, the inner wall of the hollow tube 7 is provided with two groups of rectangular blocks 8 with through holes, a cross rod 9 is inserted in the rectangular blocks 8 in a sliding manner, one end of the cross rod 9 is fixedly connected with a pressing block 10, the pressing block 10 is positioned in the hollow tube 7, the outer wall of the pressing block 10 is fixedly sleeved with an elastic rubber ring 12 with a smooth outer wall, and the elastic rubber ring 12 is attached to the inner wall of the hollow tube 7;

a threaded column 14 is integrally formed at the lower end of the interphone 2, a through hole 15 is formed at the lower end of the L-shaped placing block 1, one end of the threaded column 14 penetrates through the through hole 15 and is locked and fixed through a nut 16, a connecting column 17 is fixedly welded at the other side of the L-shaped placing block 1, an installation piece 18 is arranged at one end of the connecting column 17, and an installation hole 19 for a bolt to penetrate through is formed in the installation piece 18;

a rubber cushion block 20 is fixedly bonded on the inner wall of the groove 3, the rubber cushion block 20 is an elastic rubber cushion block, and the rubber cushion block 20 is abutted against the outer wall of the interphone 2;

be provided with hollow tube 7 through 2 button outsides at the intercom, be provided with two sets of rectangular blocks 8 that have the through-hole on the inner wall of hollow tube 7, it has horizontal pole 9 to slide the grafting in rectangular block 8's inside, at the one end fixedly connected with briquetting 10 of horizontal pole 9 to and set up briquetting 10 and be located hollow tube 7 inside, effectual easy mistake of avoiding touches the equipment button of talkbacking and leads to the wrong report police.

Example 4

On the basis of the real-time examples 1 and 2, as shown in fig. 4, the intercom 2 realizes the nuisance intercom by adopting the following way:

(1) designing and realizing a hardware circuit of a host;

(2) the power amplification circuit realizes local telephone transmission, and an LM386 audio amplifier is adopted, so that the local telephone transmission has the advantages of adjustable gain, low self power consumption, adjustable gain, few external devices, small harmonic distortion and the like;

(3) the system ringing alarm circuit adopts CD4060 to send out a pulse signal with fixed frequency of 13.6 KHz;

(4) a decoding and decoding circuit, adopting LM567 as a tone decoder of a general phase-locked loop circuit;

(5) the design of the hand-free circuit of the car auxiliary machine adopts BL34018, and the hand-free circuit is designed into a high-quality hand-free talking circuit by combining necessary amplifiers, attenuators and a plurality of control functions;

(6) the side tone elimination adopts an audio transformer design;

wherein, the interphone (2) includes a microphone amplifier, an audio power amplifier used for loudspeaker, sending and receiving the attenuator, background noise level detecting system and an attenuator control system, in order to respond to sending and receiving the level better than the background noise;

as shown in FIG. 5, the power supply mode of the bus is 12VDC, a PWM flyback design is adopted, the full load power is 30W, and the output end is connected with an audio transformer in series.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Claims

1. The utility model provides a five sides of total system intercom systems, includes computer lab handle machine, sedan-chair top intercom, pit intercom, car intercom (2), room on duty host computer, decoder and system's power, its characterized in that: sedan-chair top intercom, pit intercom, car intercom, on duty room host computer, decoder pass through communication line and computer lab handle machine communication connection respectively, car intercom (2) include a microphone amplifier, an audio power amplifier circuit, send and receive attenuator, background noise level detecting system and an attenuator control system that are used for the speaker, power amplifier circuit realizes local phone call, the decoder is general phase-locked loop circuit tone decoder.

2. A bus-based five-way intercom system as in claim 1 wherein: the car interphone (2) further comprises an L-shaped placing block (1), a groove (3) is formed in the L-shaped placing block (1), the lower end of the interphone (2) is inserted into the groove (3), two groups of inserting columns (4) are fixedly connected to one side of the interphone (2), through holes (5) corresponding to the inserting columns (4) are formed in the side wall of the L-shaped placing block (1), the two groups of inserting columns (4) are inserted into the through holes (5) in a sliding mode, a first compression spring (6) is sleeved on the outer wall of each inserting column (4), and two ends of each first compression spring (6) are abutted to the side wall of the L-shaped placing block (1) and the side wall of the interphone (2) respectively;

the novel interphone is characterized in that a hollow tube (7) is arranged on the outer side of a key of the interphone (2), two groups of rectangular blocks (8) with through holes are arranged on the inner wall of the hollow tube (7), a cross rod (9) is inserted into the rectangular blocks (8) in a sliding mode, one end of the cross rod (9) is fixedly connected with a pressing block (10), and the pressing block (10) is located inside the hollow tube (7).

3. A bus-based five-way intercom system as in claim 2 wherein: an elastic rubber ring (12) with a smooth outer wall is fixedly sleeved on the outer wall of the pressing block (10), and the elastic rubber ring (12) is attached to the inner wall of the hollow pipe (7).

4. A bus-based five-way intercom system as in claim 2 wherein: the lower extreme integrated into one piece of intercom (2) has screw thread post (14), through hole (15) are seted up to the lower extreme of L shape piece (1) of placing, the one end of screw thread post (14) is passed through hole (15) and is locked fixedly through nut (16).

5. A bus-based five-way intercom system as in claim 2 wherein: the other side fixed welding of piece (1) is placed to the L shape has spliced pole (17), the one end of spliced pole (17) is provided with installation piece (18), just set up mounting hole (19) that are used for the bolt to pass on installation piece (18).

6. A bus-based five-way intercom system as in claim 2 wherein: the inner wall of the groove (3) is fixedly bonded with a rubber cushion block (20), the rubber cushion block (20) is set to be an elastic rubber cushion block, and the rubber cushion block (20) is abutted to the outer wall of the interphone (2).

7. A bus-based five-way intercom system as in claim 2 wherein: the outer wall of the cross rod (9) is sleeved with a second compression spring (11), two ends of the second compression spring (11) respectively abut against the side wall of the rectangular block (8) and the side wall of the pressing block (10), and one side of the pressing block (10) is provided with a support pillar (13).