Novel building intercom indoor extension set
By using a limit connection sleeve and protective components, and utilizing springs and rotating adjustment knobs, the indoor intercom unit can be easily disassembled, solving the problem of inconvenient tool disassembly and improving installation and disassembly efficiency.
Patent Information
- Application Number
- CN202520046086.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-01-09
AI Technical Summary
When existing building intercom indoor units are damaged and require repair, tools are needed to disassemble them, resulting in low installation and disassembly efficiency.
The design employs a limit connecting sleeve, protective components, and a toothed insert plate. The toothed insert plate is engaged, secured, and disassembled via a spring and a rotating adjustment knob, eliminating the need for tool disassembly.
It improves the efficiency of installing and removing indoor intercom units, simplifies the maintenance process, and reduces reliance on tools.
Smart Images

Figure CN223899216U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of intercom indoor extension units, and in particular to a novel building intercom indoor extension unit. Background Technology
[0002] The indoor intercom unit is an important component of the building intercom system, mainly used for indoor communication and control. It is usually installed in the indoor unit of the resident and used in conjunction with the door station or other units to realize functions such as intercom and door unlocking. With the development of technology, modern building intercom indoor units may also have multiple functions such as monitoring, security alarm, inter-unit communication, information reception, remote telephone alarm, photo message retrieval, and home appliance control.
[0003] In use, this utility model requires the device to be fixed to the wall. It is controlled by wiring and operating the system on the display screen to meet the convenience of residents. However, the device needs to be fixed with screws, and when it is damaged and needs to be repaired, tools are required for disassembly, which is inconvenient and affects the efficiency of device installation and disassembly. Therefore, a new type of building intercom indoor unit is needed to solve the above problems. Utility Model Content
[0004] To overcome the problem that disassembling the intercom unit in a new building requires tools when it is damaged and needs to be repaired, which is inconvenient and affects the efficiency of equipment installation and disassembly.
[0005] The technical solution of this utility model is as follows: a novel building intercom indoor unit, including a wall, a limiting connecting sleeve and a protective component. A fixed connecting seat is fixedly connected to the front of the wall, a toothed insert plate is slidably connected inside the fixed connecting seat, a protective shell is fixedly connected to the front of the toothed insert plate, a wire groove is opened inside the protective shell, an intercom controller is installed inside the protective shell, and the protective component is installed outside the intercom controller. A sliding limiting rod is slidably connected inside the limiting connecting sleeve, a limiting fixing post is fixedly connected to the inner side of the sliding limiting rod, and a second spring is fixedly connected between the limiting fixing post and the limiting connecting sleeve. By inserting the toothed insert plate into the fixed connecting seat, the limiting fixing post on the sliding limiting rod is pushed by the second spring to lock and fix the toothed insert plate.
[0006] Preferably, the limiting connecting sleeve has a groove at the corresponding position of the sliding limiting rod, and the sliding limiting rod slides inside the groove.
[0007] Preferably, the fixed connecting seat has a sliding block inside, and a first spring is fixedly connected between the sliding block and the fixed connecting seat. The sliding limit rod has a fixed shaft inside, and a rotation adjustment knob is rotatably connected to the outside of the fixed shaft.
[0008] Preferably, the fixed connecting seat has a groove at the corresponding position of the sliding block, and the sliding block slides inside the groove.
[0009] Preferably, the protective component includes a fixing bolt threaded into the inside of the protective housing. A limit slot is provided inside the protective housing, and a limit plate is movably connected inside the limit slot. A limit fixing plate is fixedly connected to the front of the limit plate. A sliding compression plate is slidably connected inside the protective housing, and a third spring is fixedly connected between the sliding compression plate and the protective housing.
[0010] Preferably, the fixing bolt contacts the limiting plate, the sliding pressing plate contacts the intercom controller, and the limiting fixing plate contacts the intercom controller.
[0011] As a preferred embodiment, the protective shell is provided with a groove at the corresponding position of the sliding extrusion plate, and the sliding extrusion plate slides inside the groove.
[0012] The beneficial effects of this utility model are as follows: Compared with the new building intercom indoor unit, by turning the fixed shaft to rotate the adjustment knob and pulling the sliding limit rod upward, the limit fixing column is disassembled from the inside of the insert plate, and the toothed insert plate is disassembled from the inside of the fixed connecting seat, which brings convenience to the installation and disassembly of the device, improves the efficiency of installation and disassembly, and effectively prevents the need for tools to disassemble during maintenance, which would cause inconvenience. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;
[0014] Figure 2 This is an exploded view of the appearance of this utility model;
[0015] Figure 3 This is a schematic diagram of the internal structure of the fixed connecting seat of this utility model;
[0016] Figure 4 This is a partial structural diagram of the fixed connecting seat of this utility model;
[0017] Figure 5 This is an exploded view of the protective component of this utility model;
[0018] Figure 6 This is a partial structural diagram of the protective component of this utility model.
[0019] Explanation of reference numerals in the attached drawings: 1. Wall; 2. Fixed connecting seat; 3. Toothed insert plate; 4. Protective housing; 5. Cable tray; 6. Intercom control unit; 801. Sliding block; 802. First spring; 803. Limiting connecting sleeve; 804. Sliding limiting rod; 805. Limiting fixing post; 806. Second spring; 807. Fixed shaft; 808. Rotation adjustment knob; 901. Fixing bolt; 902. Limiting slot; 903. Limiting plate; 904. Limiting fixing plate; 905. Sliding pressing plate; 906. Third spring. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0021] Please see Figures 1-6 This utility model provides an embodiment: a novel building intercom indoor unit, including a wall 1, a limiting connecting sleeve 803, and a protective component. A fixed connecting seat 2 is fixedly connected to the front of the wall 1. A toothed insert plate 3 is slidably connected inside the fixed connecting seat 2. A protective shell 4 is fixedly connected to the front of the toothed insert plate 3. A wire groove 5 is provided inside the protective shell 4. An intercom controller 6 is disposed inside the protective shell 4. A sliding limiting rod 804 is slidably connected inside the limiting connecting sleeve 803. A limiting fixing post 805 is fixedly connected to the inner side of the sliding limiting rod 804. A second spring 806 is fixedly connected between the limiting fixing post 805 and the limiting connecting sleeve 803. By inserting the toothed insert plate 3 into the fixed connecting seat 2, the second spring 806... Spring 806 pushes the limiting fixing post 805 on the sliding limiting rod 804 to engage and fix the toothed insert plate 3. When the toothed insert plate 3 is inserted into the fixed connecting seat 2, it pushes the sliding limiting rod 804 on the limiting fixing post 805 to slide inside. When the limiting fixing post 805 is engaged in the toothed insert plate 3, the second spring 806 pushes the limiting fixing post 805 into the toothed insert plate 3 to fix it. The limiting connecting sleeve 803 has a groove at the corresponding position of the sliding limiting rod 804. The sliding limiting rod 804 slides in the groove. The limiting connecting sleeve 803 has a groove at the corresponding position of the sliding limiting rod 804, so that the sliding of the sliding limiting rod 804 is limited and has a limiting function.
[0022] Please see Figures 3-4In this embodiment, a sliding block 801 is slidably connected inside the fixed connecting seat 2, and a first spring 802 is fixedly connected between the sliding block 801 and the fixed connecting seat 2. A fixed shaft 807 is fixedly connected inside the sliding limiting rod 804, and a rotation adjustment knob 808 is rotatably connected to the outside of the fixed shaft 807. The sliding block 801 slides inside the toothed insert plate 3, and the first spring 802 resets it, so that the toothed insert plate 3 has a limiting effect when sliding inside the fixed connecting seat 2. A groove is opened at the corresponding position of the sliding block 801 in the fixed connecting seat 2. The sliding block 801 slides inside the groove. The groove opened inside the fixed connecting seat 2 at the corresponding position of the sliding block 801 limits the sliding block 801 when it slides in the groove, thus playing a limiting role.
[0023] Please see Figures 5-6 In this embodiment, the protective component includes a fixing bolt 901, which is threaded into the interior of the protective housing 4. A limiting slot 902 is formed inside the protective housing 4, and a limiting plate 903 is movably connected inside the limiting slot 902. A limiting fixing plate 904 is fixedly connected to the front of the limiting plate 903. A sliding pressing plate 905 is slidably connected inside the protective housing 4, and a third spring 906 is fixedly connected between the sliding pressing plate 905 and the protective housing 4. The limiting slot 902 causes the limiting plate 903 to engage internally, and the fixing bolt 901 then... To achieve the effect of fixing and limiting, the fixing bolt 901 contacts the limiting plate 903, the sliding pressing plate 905 contacts the intercom controller 6, and the limiting fixing plate 904 contacts the intercom controller 6. The fixing bolt 901 and the limiting plate 903 work together to press and fix the limiting fixing plate 904. The protective shell 4 has a groove at the corresponding position of the sliding pressing plate 905. The sliding pressing plate 905 slides inside the groove. The groove inside the protective shell 4 corresponding to the position of the sliding pressing plate 905 provides a limiting function for the sliding pressing plate 905.
[0024] During operation, the intercom controller 6 is inserted into the protective housing 4. A limiting plate 903 is inserted into the limiting slot 902, causing the limiting fixing plate 904 to contact the intercom controller 6. A fixing bolt 901 is threaded into the protective housing 4 and contacts the limiting plate 903 for fixation. A third spring 906 pushes the sliding compression plate 905 to contact the intercom controller 6 for fixation. The toothed insert 3 on the back of the protective housing 4 is inserted into the fixing connector 2. The limiting slot 902 pushes the fixing bolt 901 to engage and limit the toothed insert 3. A second spring 806 pushes the limiting fixing post 805 inside the sliding limiting rod 804 to engage with the toothed insert 3 for fixation. During disassembly, the fixing shaft 807 is rotated, causing the adjusting knob 808 to rotate and pull the sliding limiting rod 804 upwards, causing the toothed insert 3 to disengage from the fixing connector 2.
[0025] Through the above steps, the second spring 806 pushes the limiting fixing post 805 inside the sliding limiting rod 804 to engage with the toothed insert plate 3 for fixation. During disassembly, the fixing shaft 807 is turned to rotate the adjusting knob 808, which pulls the sliding limiting rod 804 upward, causing the toothed insert plate 3 to disengage from the fixed connecting seat 2. This solves the problem that when the new building intercom indoor unit is damaged and needs to be repaired, tools are needed for disassembly, which is inconvenient and affects the efficiency of equipment installation and disassembly.
Claims
1. A novel building intercom indoor unit, comprising a wall (1), characterized in that: It also includes a limiting connecting sleeve (803) and a protective component. A fixed connecting seat (2) is fixedly connected to the front of the wall (1). A toothed insert plate (3) is slidably connected inside the fixed connecting seat (2). A protective shell (4) is fixedly connected to the front of the toothed insert plate (3). A wire groove (5) is opened inside the protective shell (4). An intercom controller (6) is installed inside the protective shell (4). The protective component is located outside the intercom controller (6) and inside the limiting connecting sleeve (803). The sliding connection is provided with a sliding limit rod (804), and a limit fixing post (805) is fixedly connected to the inner side of the sliding limit rod (804). A second spring (806) is fixedly connected between the limit fixing post (805) and the limit connecting sleeve (803). By inserting the toothed insert plate (3) into the fixed connecting seat (2), the second spring (806) pushes the limit fixing post (805) on the sliding limit rod (804) to lock and fix the toothed insert plate (3).
2. The novel building intercom indoor unit according to claim 1, characterized in that: The limiting connecting sleeve (803) has a groove at the corresponding position of the sliding limiting rod (804), and the sliding limiting rod (804) slides inside the groove.
3. The novel building intercom indoor unit according to claim 1, characterized in that: The fixed connecting seat (2) has a sliding block (801) inside it, and a first spring (802) is fixedly connected between the sliding block (801) and the fixed connecting seat (2). The sliding limit rod (804) has a fixed shaft (807) inside it, and a rotation adjustment knob (808) is rotatably connected to the outside of the fixed shaft (807).
4. The novel building intercom indoor unit according to claim 3, characterized in that: The fixed connecting seat (2) has a groove at the corresponding position of the sliding block (801), and the sliding block (801) slides inside the groove.
5. The novel building intercom indoor unit according to claim 1, characterized in that: The protective assembly includes a fixing bolt (901), which is threaded into the inside of the protective housing (4). A limit slot (902) is provided inside the protective housing (4). A limit plate (903) is movably connected inside the limit slot (902). A limit fixing plate (904) is fixedly connected to the front of the limit plate (903). A sliding compression plate (905) is slidably connected inside the protective housing (4). A third spring (906) is fixedly connected between the sliding compression plate (905) and the protective housing (4).
6. The novel building intercom indoor unit according to claim 5, characterized in that: The fixing bolt (901) is in contact with the limiting plate (903), the sliding pressing plate (905) is in contact with the intercom controller (6), and the limiting fixing plate (904) is in contact with the intercom controller (6).
7. The novel building intercom indoor unit according to claim 5, characterized in that: The protective shell (4) has a groove at the corresponding position of the sliding extrusion plate (905), and the sliding extrusion plate (905) slides inside the groove.