Quickly-assembled fire-fighting extension telephone

Abstract

The utility model relates to a fast-assembly fire-fighting extension telephone, which is characterized in that the installation in the XY plane direction is realized through the pre-connection of a leading-in column and a buzzer, the leading-in column is conical, the leading-in column is more compact when being assembled downwards, an elastic buckle is pushed to deform at the same time, and when the buzzer crosses the elastic buckle, the elastic buckle is reset to the upper part of the buzzer to clamp the buzzer in a base. A sound cavity ring matched with the buzzer is arranged in the base, a press-fit column is arranged in the sound cavity ring to enable the buzzer to be assembled stably and avoid shaking of the buzzer, a tip is arranged at the end of the press-fit column, the tip deforms during press-fit to enable the buzzer to be installed in parallel, the sealing performance is better, sound is fuller, meanwhile, the consistency of products is better, and the reject ratio of the products is reduced. The base and the shell are connected through the clamping opening and the clamping block, limiting is carried out in cooperation with the limiting structure, shaking is avoided, screws are not needed in overall assembly, assembly is simpler and more convenient, production efficiency is improved, and material cost is saved. The hanging bracket and the magnet are matched, so that the handle is convenient to place and fix, and the use is more convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of fire telephone extension, especially to a quick -mounting type fire telephone extension. BACKGROUND

[0002] Telephone extension is an important component in the fire automatic alarm telephone system, and the fire telephone extension can be divided into fixed type and hand-held type according to the installation of the telephone extension. The fixed telephone extension is installed on the wall, and whether the telephone module is needed is determined according to the system. The current fire telephone extension often uses screws to lock each part during assembly, which has low production efficiency and increases the cost. At the same time, the microphone of the fire telephone extension needs good sealing for sound transmission. The buzzer of the existing extension cannot completely guarantee the consistency of the product during assembly, and the defective product is prone to occur.

[0003] Chinese patent No. CN220935211 U discloses a novel fire telephone extension structure, which comprises a support frame, four support legs are fixedly connected to the bottom corners of the support frame, a lifting mechanism is arranged in the support frame, a positioning mechanism is arranged on the top of the lifting mechanism, a fire telephone main body is arranged in the positioning mechanism, and a receiver is arranged on the top of the fire telephone main body. The novel fire telephone extension structure can protect the fire telephone main body by the lifting mechanism, avoid the collision between the external object and the fire telephone main body, and improve the service life of the fire telephone main body to a certain extent. The positioning mechanism can drive the positioning members on both sides to move towards each other, so that the positioning members on both sides can tightly adhere to the surface of the fire telephone main body, position the fire telephone main body, avoid the deviation of the fire telephone main body, and facilitate use. However, this patent needs to use a large number of screws for fixation, which has high cost. At the same time, the sealing performance of the buzzer cannot be guaranteed during assembly, and the sound scattering phenomenon is prone to occur.

[0004] The Chinese patent publication No. CN208094608U discloses a multifunctional fire telephone extension, a fixed seat inner wall is fixedly connected with a fixed frame at the bottom, and a button penetrates through the bottom of the fixed seat, the top of the button is fixedly connected with a push rod, a reset spring is sleeved on the surface of the push rod between the top of the button and the fixed frame, and the two sides of the top end of the push rod are rotatably connected with clamping rods through connecting rods, the top and the bottom of the inner wall of the fixed seat are both provided with sliding grooves, and the two ends of the clamping rods are slidably connected with the sliding grooves, and the surfaces of the clamping rods and the fixed seat are both fixedly connected with spring fixing heads, and the multifunctional fire telephone extension belongs to the technical field of fire telephone extension. Technical field

[0005] The technical problem to be solved by the utility model is that the current fire telephone extension is locked by screws during assembly, the production efficiency is low, the cost is increased, the microphone of the fire telephone extension needs good sealing for sound propagation, the consistency of the product cannot be completely guaranteed during assembly of the existing extension, and the defective products are prone to occur.

[0006] In order to solve the above technical problems, the utility model adopts the technical scheme that:

[0007] A quick-assembly fire telephone extension is constructed, which comprises a base, a handle placed on the base, and a connecting line connecting the base and the handle, the base comprises a front casing and a bottom casing, and a control panel and a base buzzer are arranged between the front casing and the bottom casing, and the base buzzer is connected with the control panel, characterized in that a buzzer fixing structure is arranged in the base corresponding to the base buzzer, the buzzer fixing structure comprises a plurality of elastic buckles, the elastic buckles are deformed when the base buzzer is arranged between the elastic buckles, and the elastic buckles are reset to clamp the base buzzer after the base buzzer passes through the elastic buckles.

[0008] Preferably, the buzzer fixing structure further comprises a guide column, a fixed lug is arranged on the side surface of the base buzzer corresponding to the elastic buckle, a fixed hole is arranged on the fixed lug corresponding to the guide column, the elastic buckle comprises a fixed column arranged on the bottom casing and an arc-shaped connecting arm connected with the fixed column, the movable end of the arc-shaped connecting arm is in contact with the base buzzer, and the end portion forms a clamping surface to clamp the base buzzer.

[0009] Preferably, the guide column is tapered, and the end of the fastening surface is provided with a pointed end.

[0010] Preferably, the buzzer fixing structure further comprises a sound cavity ring arranged on the upper end of the front casing, a sound hole corresponding to the base buzzer is arranged in the sound cavity ring, and a pressing column is further arranged in the sound cavity ring to generate a pressing force on the top surface of the base buzzer.

[0011] Preferably, the end of the pressing column is a pointed end, and the pointed end is deformed under stress, an indicating lamp is further arranged on the control panel, a clamping block is arranged on the bottom casing, a clamping hole corresponding to the clamping block is arranged on the front casing, and the front casing and the bottom casing are connected through the clamping hole and the clamping block.

[0012] Preferably, a receiver recess is arranged on the base, a through hole is arranged in the receiver recess, a hanging-up support is further arranged in the base corresponding to the through hole, a micro switch corresponding to the hanging-up support is arranged on the control panel, when the handle is placed in the receiver recess, the receiver generates a pressure on the hanging-up support to move towards the micro switch to make the micro switch closed, when the handle is taken out of the receiver recess, the micro switch resets to push the hanging-up support to reset, a limiting block is arranged on the front casing to limit the control panel, a fastening block is further arranged on the limiting block, and the fastening block is arranged in suspension.

[0013] Preferably, the hanging-up support comprises a rotating shaft, a rotating shaft seat corresponding to the rotating shaft is arranged on the front casing, the rotating shaft rotates at the rotating shaft seat, a stress end corresponding to the through hole is arranged on the hanging-up support, and the stress end moves at the through hole.

[0014] Preferably, a rotating shaft pressing block is further arranged on the front casing to press the rotating shaft on the rotating shaft seat, a limiting block is further arranged on the hanging-up support, the micro switch is turned off when the limiting block contacts the front casing, two groups of side baffles are further arranged at the through hole, the hanging-up support moves between the two groups of side baffles, and a support plate is connected to the side surface of the side baffles.

[0015] Preferably, the handle comprises an upper casing and a lower casing, a handle buzzer and a microphone are further arranged in the upper casing and the lower casing, an elastic column is arranged on the upper casing to generate a pressing force on the handle buzzer and the microphone, a magnet is arranged in the handle, and a magnet corresponding to the magnet is arranged on the base.

[0016] Preferably, the upper shell is provided with a bayonet, the lower shell is provided with a clamping block, the upper shell and the lower shell are connected through the clamping block and the bayonet, the base is provided with a hanging block, the handle is provided with a hanging hole corresponding to the hanging block, one end of the elastic column is fixedly connected with the upper shell, and the other end is movably installed and generates a pressing force on the buzzer and the microphone, and the lower shell is provided with an L-shaped wire slot.

[0017] The utility model discloses beneficial effect lies in: through the preconnection of import column and buzzer realizes the installation in XY plane direction, and import column is conical, and the more compactly that assembles, and push the elastic buckle deformation, when the buzzer passes through the elastic buckle, and the elastic buckle resets to the buzzer above and tightens the buzzer in the base, and the base is provided with the sound cavity ring in cooperation with the buzzer, and the sound cavity ring is provided with the pressing column and makes the buzzer assembly firm, avoids the shaking of buzzer, and sets up the pointed end at the end of pressing column, and the pointed end changes when pressing, makes the parallel installation of buzzer, and the better leakproofness, the sound is more full, and the consistency of product is better, reduces the defective rate of product. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the utility model will be further described below in combination with the drawings and the embodiments, and the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained without creative labor on the premise of these drawings:

[0019] Figure 1 It is the three-dimensional structure schematic diagram of fire telephone extension of the preferred embodiment of the utility model;

[0020] Figure 2 It is the shaft side structure schematic diagram of base of the preferred embodiment of the utility model;

[0021] Figure 3 It is another shaft side structure schematic diagram of base of the preferred embodiment of the utility model;

[0022] Figure 4 It is the explosion structure schematic diagram of base of the preferred embodiment of the utility model;

[0023] Figure 5 It is the shaft side structure schematic diagram of front casing of the preferred embodiment of the utility model;

[0024] Figure 6This is a schematic diagram of another axial side structure of the front housing of a preferred embodiment of the present invention;

[0025] Figure 7 This is a preferred embodiment of the present utility model. Figure 6 Enlarged structural diagram at point A in the middle;

[0026] Figure 8 This is a schematic diagram of the axial structure of the hanging bracket according to a preferred embodiment of the present invention;

[0027] Figure 9 This is a schematic diagram of the axial structure of the bottom housing of a preferred embodiment of the present invention;

[0028] Figure 10 This is a preferred embodiment of the present utility model. Figure 9 Enlarged structural diagram at point B;

[0029] Figure 11 This is a schematic diagram of the axial structure of the base buzzer of the preferred embodiment of the present invention;

[0030] Figure 12 This is a schematic diagram of the axial structure of the handle according to a preferred embodiment of the present invention;

[0031] Figure 13 This is a schematic diagram of the axial structure of the upper housing in a preferred embodiment of the present invention;

[0032] Figure 14 This is a schematic diagram of the axial structure of the handle (with the upper shell removed) according to a preferred embodiment of the present invention. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, a clear and complete description will be provided below in conjunction with the technical solutions in the embodiments of this utility model. Obviously, the described embodiments are some, but not all, embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0034] A preferred embodiment of this utility model is a quick-installation fire telephone extension; such as... Figure 1 As shown, it includes a base 3 and a handle 2 placed on the base. The handle and the base are connected by a connecting cable 1. After the base is installed, a telephone line is connected, and the handle is used for calls and voice transmission.

[0035] Specifically, such as Figures 2-4As shown, the base 3 comprises a bottom casing 31, and a front casing 30 mounted on the bottom casing, a control panel 32 is arranged between the bottom casing and the front casing, and a base buzzer 34 connected with the control panel, a port 37 is arranged on one side of the control panel, the port 37 is exposed to the base, and a telephone line is connected with the control panel through the port, a sound hole 300 corresponding to the base buzzer is arranged on the front casing 30, and the sound signal of the base buzzer is transmitted through the sound hole. A micro switch 38 is further arranged on the control panel 32, and a hanging bracket 33 corresponding to the micro switch is arranged between the front casing and the bottom casing, when the handle is placed on the base, the micro switch will be closed by the pressure of the hanging bracket, and at this time, the phone can be hung up. At the same time, an indicating lamp 36 is further arranged on the control panel, and the working state of the fire telephone extension can be directly observed through the indicating lamp. In order to facilitate the installation of the base 3, two groups of mounting holes 311 are arranged at the bottom of the bottom casing, the base can be hung and installed through the mounting holes; at the same time, support feet 310 are arranged at the four corners of the base 3, and anti-skid pads 35 are arranged on the support feet, the base can be placed on a plane through the support feet, and the anti-skid pads can increase the friction of the base.

[0036] Further, as Figures 6-7 and Figures 9-11As shown, the bottom shell 31 is provided with two groups of buzzer fixing structures 314, and the base buzzer 34 is provided with fixing ears 340 corresponding to the buzzer fixing structures on both sides, and the middle of the fixing ears is formed with fixing holes 341. The buzzer fixing structure includes guide columns 3140 corresponding to the fixing holes, and the guide columns are used to fix the position of the base buzzer by penetrating through the fixing holes. The guide columns can also be tapered, so that the assembly is more compact as it goes to the lower end of the guide column. The buzzer fixing structure further includes elastic buckles 3141 for clamping the fixing ears. During the installation of the base buzzer into the guide column, a pushing force is generated on the elastic buckle to deform the elastic buckle. After passing the elastic buckle, the elastic buckle restores to above the fixing ear, thereby installing the base buzzer on the bottom shell. The elastic buckle 3141 includes a fixing column 3142 arranged perpendicular to the bottom shell, and an arc-shaped connecting arm 3143 integrally formed with the fixing column. The end of the arc-shaped connecting arm is formed with a clamping surface 3144. When the base buzzer is installed into the guide column, a pushing force is generated on the arc-shaped connecting arm to deform the arc-shaped connecting arm. When the base buzzer is installed in place, the fixing ear passes the arc-shaped connecting arm to place the clamping surface 3144 above the fixing ear. The end of the clamping surface 3144 is a sharp end 3145. Since the sharp end is thin, it will be deformed when the base buzzer is installed in place to ensure that the base buzzer is installed parallel to the bottom shell. Meanwhile, the front shell 30 is provided with a sound cavity ring 306 corresponding to the base buzzer. The sound cavity ring is provided with a sound outlet hole 300. The sound emitted by the base buzzer is propagated in the sound cavity ring and transmitted to the outside through the sound outlet hole. The inner wall of the sound cavity ring contacts the outer wall of the base buzzer to seal the buzzer so that the sound can only be transmitted through the sound outlet hole. The sound cavity ring 306 is further provided with multiple compression columns 3060. When the front shell is connected with the bottom shell, the compression columns are placed above the base buzzer to generate pressure on the base buzzer to ensure that the base buzzer is compacted, and to avoid the base buzzer from shaking up and down, thereby achieving better sealing effect and more full sound propagation. The end of the compression column 3060 is a compression column sharp end 3061. The compression column sharp end will be deformed when it contacts the base buzzer, thereby further ensuring that the base buzzer is compacted and cannot shake up and down. Meanwhile, since there is a tolerance in the production of plastic materials, the excess amount generated by the deformation of the compression column sharp end can compensate for the tolerance, thereby ensuring the consistency of mass-produced products.

[0037] Further, as shown in Figure 4 and Figure 9 The bottom shell 31 is provided with multiple limiting blocks 313, which are distributed around the control panel 32 to limit the installation of the control panel on the bottom shell. Meanwhile, the bottom shell on both sides of the control panel is further connected with a clamping block 3130. The clamping block is suspended. When the control panel is installed in the bottom shell, it is first placed in the area surrounded by the multiple limiting blocks, and then a squeezing force is generated on the clamping block to deform it. When the control panel passes the clamping block, the clamping block restores and is placed above the control panel to clamp the control panel on the bottom shell, thereby facilitating the installation of the control panel.

[0038] Further, as shown in Figures 4-6 And Figure 8 The front shell 30 is provided with a plurality of sets of sockets 303, and the bottom shell is provided with a clamping block 312 corresponding to the socket. The bottom shell and the front shell are connected through the socket and the clamping block, saving the locking of the screws and making the assembly more convenient. The front shell 30 is also provided with a microphone groove 301 and an earpiece groove 302, and the earpiece is placed in the microphone groove and the earpiece groove respectively. The earpiece groove 302 is provided with a through hole 3021, and a hanging bracket 33 is installed at the through hole. The hanging bracket includes a rotating shaft 330 and a stress end 331 integrally formed with the rotating shaft. The front shell is provided with a rotating shaft seat 304 corresponding to the rotating shaft, and the rotating shaft is placed on the rotating shaft seat. The front shell is also provided with a rotating shaft pressing block 305 corresponding to the rotating shaft seat. The rotating shaft pressing block is L-shaped, and the rotating shaft 330 is clamped tightly through the rotating shaft pressing block and the rotating shaft seat. The rotating shaft can rotate on the rotating shaft seat to drive the stress end to move at the through hole. When the handle is placed on the base, the handle generates pressure on the stress end to make the stress end move downward with the rotating shaft as the center and press the micro switch 38 to close. At this time, the control panel can disconnect the call. When the handle is lifted, the micro switch resets and pushes the hanging bracket to reset. At this time, the stress end is placed in the through hole, and the top limiting block 334 can be set at the front end of the stress end to limit the reset. When the top limiting block contacts the inner wall of the earpiece groove, it indicates that the micro switch is disconnected. Or when the side limiting surface 333 on the side of the hanging bracket contacts the inner wall of the earpiece groove, the micro switch reset can also be achieved. At the same time, in order to ensure that the hanging bracket rotates parallelly at the through hole, the side stop plate 3022 is provided on both sides of the through hole. The side stop plate contacts the side surface 332 to ensure that the stress end can always move in the through hole. The support plate 3023 can be provided on the side of the side stop plate to improve the strength of the side stop plate and avoid its fracture.

[0039] Further, as shown in Figures 1-2 And Figures 12-14As shown, the handle 2 comprises an upper shell 20 and a lower shell 21, and a handle buzzer 24 and a microphone 22 arranged between the upper shell and the lower shell, the microphone corresponding to the microphone groove of the base, the handle buzzer corresponding to the earpiece groove of the base, and a hanging block 3020 arranged in the earpiece groove, and a hanging hole 210 arranged on the handle corresponding to the hanging block, and the handle and the base can be connected through the hanging block and the hanging hole when the base is installed on the wall through the mounting seat. Meanwhile, sound transmission holes 300 are arranged on the handle corresponding to the handle buzzer and the microphone, facilitating the propagation of sound. A plurality of clamping holes 303 are arranged on the upper shell, and a plurality of clamping blocks 312 are arranged on the lower shell corresponding to the clamping holes, and the upper shell and the lower shell are connected through the clamping holes and the clamping blocks. Meanwhile, elastic columns 200 are arranged on the upper shell corresponding to the handle buzzer and the microphone, one end of the elastic column is arranged on the upper shell, and the other end is arranged in suspension and parallel to the upper shell, and when the upper shell and the lower shell are connected, the suspended end of the elastic column generates a pushing force on the handle buzzer and the microphone to fix them, avoiding the shaking of the microphone 22 and the handle buzzer 24, and affecting the use effect. A cavity 211 is arranged on the handle corresponding to the handle buzzer, clamping blocks 312 are arranged around the cavity, and the handle buzzer is clamped in the cavity through the clamping blocks, and foam 25 is arranged between the handle buzzer and the upper shell, reducing the shaking of the handle buzzer caused by the vibration of the handle placed on the handle. Magnets 23 are arranged on the upper shell through the clamping blocks 312, and magnets (not shown in the figure) are also arranged on the base corresponding to the magnets, and when the handle is placed on the base, the magnets generate an attractive force to make the handle tightly adhere to the base to ensure that the handle is placed in place. Meanwhile, a wire slot 212 is arranged at the end of the handle, and the connecting line is arranged in the wire slot, the wire slot is L-shaped, reducing the loosening of the connecting line caused by pulling, and the connecting line can be arranged as a spring wire, having a certain lengthening effect and being able to recover after lengthening, and being more convenient to use.

[0040] It should be understood that the present application is described by some embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the present application. In addition, under the guidance of the present application, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the present application. Therefore, the present application is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope of protection of the present application.

Claims

1. A quick-install fire telephone extension, comprising a base and a handle placed on the base, the base and the handle being connected by a connecting cable, the base comprising a front housing and a bottom housing, and a control board and a base buzzer disposed between the front housing and the bottom housing, the base buzzer being connected to the control board, characterized in that: The base is equipped with a buzzer fixing structure corresponding to the base buzzer. The buzzer fixing structure includes multiple sets of elastic buckles. When the base buzzer is placed between the elastic buckles, the elastic buckles deform. After passing the elastic buckles, the elastic buckles reset and fasten the base buzzer.

2. The fire telephone extension according to claim 1, characterized in that: The buzzer fixing structure also includes an inlet post. The side of the base buzzer is provided with a fixing ear corresponding to the elastic buckle. The fixing ear is provided with a fixing hole corresponding to the inlet post. The elastic buckle includes a fixing post provided on the base housing and an arc-shaped connecting arm connected to the fixing post. The movable end of the arc-shaped connecting arm contacts the base buzzer, and the end forms a fastening surface to fasten the base buzzer.

3. The fire telephone extension according to claim 2, characterized in that: The inlet post is conical, and the end of the fastening surface is provided with a pointed tip.

4. The fire telephone extension according to claim 1, characterized in that: The buzzer fixing structure also includes a sound cavity ring disposed on the upper end of the front housing. A sound transmission hole is disposed in the sound cavity ring corresponding to the base buzzer. A pressing column is also disposed in the sound cavity ring, and the pressing column generates a pressing force on the top surface of the base buzzer.

5. The fire telephone extension according to claim 4, characterized in that: The end of the pressing column is a pointed tip, which deforms under force. The control panel is also equipped with an indicator light. The bottom housing is equipped with a locking block, and the front housing is equipped with a corresponding locking slot. The front housing and the bottom housing are connected through the locking slot and the locking block.

6. The fire telephone extension according to any one of claims 1-5, characterized in that: The base has a handset groove with a through hole. A mounting bracket is also provided in the base corresponding to the through hole. A micro switch is provided on the control board corresponding to the mounting bracket. When the handle is placed in the handset groove, the handset exerts pressure on the mounting bracket, causing it to move toward the micro switch and close. When the handle is lifted from the handset groove, the micro switch resets and pushes the mounting bracket back to its original position. A limit block is provided on the front housing to limit the control board. A fastening block is also provided on the limit block, and the fastening block is suspended in the air.

7. The fire telephone extension according to claim 6, characterized in that: The mounting bracket includes a rotating shaft, and a corresponding rotating shaft seat is provided on the front housing. The rotating shaft rotates at the rotating shaft seat. A force-bearing end is provided on the mounting bracket corresponding to the through hole, and the force-bearing end moves at the through hole.

8. The fire telephone extension according to claim 7, characterized in that: The front housing is also provided with a pivot pressure block, which presses the pivot onto the pivot seat. The mounting bracket is also provided with a limit block, which disconnects the micro switch when the limit block contacts the front housing. Two sets of side baffles are also provided at the through hole, and the mounting bracket moves between the two sets of side baffles. A support plate is connected to the side of the side baffle.

9. The fire telephone extension according to claim 1, characterized in that: The handle includes an upper shell and a lower shell. A handle buzzer and a microphone are also provided inside the upper shell and the lower shell. An elastic post is provided on the upper shell. The elastic post generates a pressing force on the handle buzzer and the microphone. A magnet is provided inside the handle, and a corresponding magnet is provided on the base.

10. The fire telephone extension according to claim 9, characterized in that: The upper housing is provided with a bayonet, and the lower housing is provided with a locking block. The upper housing and the lower housing are connected by the locking block and the bayonet. The base is provided with a suspension block, and the handle is provided with a suspension hole corresponding to the suspension block. One end of the elastic column is fixedly connected to the upper housing, and the other end is suspended and movably installed to generate a pressing force on the handle buzzer and microphone. The lower housing is provided with an L-shaped cable routing groove.

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