Portable reversing buzzer

Abstract

The utility model provides a portable reversing buzzer, which relates to the field of buzzers and comprises a shell (10), a mounting seat (20), a buzzer body (30), a turntable (40) and a positioning mechanism, a groove is formed in the middle of the shell (10), the mounting seat (20) is arranged in the groove in a sliding manner, the mounting seat (20) is of a concave structure, and the bottom of the mounting seat (20) is connected with the bottom surface of the groove of the shell (10) through a first spring (22); the buzzer body (30) is clamped on the mounting seat (10); a rotating turntable (40) is coaxially arranged on the top surface of the shell (10), a through hole corresponding to the buzzer body (30) is formed in the middle of the turntable (40), and the positioning mechanisms are uniformly distributed around the central axis of the turntable (40) and comprise sliding rods (51), positioning pins (52) and second springs (53). According to the reversing buzzer, the buzzer body can be quickly disassembled and assembled, the stability of the buzzer body after installation is ensured, and the buzzer body can be buffered when an object is collided.

Description

Technical Field

[0001] The utility model relates to the technical field of buzzers, in particular to a portable reversing buzzer. Background Art

[0002] A reversing buzzer is an electrical device in a car that emits an audible signal. When the car is reversing or preparing to reverse, it emits a sound to warn the driver and passengers of pedestrians or other obstacles behind the car, thereby preventing unnecessary damage during reversing. Chinese patent document CN206224995U discloses a reversing buzzer comprising a housing, a fixing plate, a fixing plate disposed on the outer wall of the housing, a mounting hole disposed on the fixing plate, a terminal disposed below the housing, a buzzer body disposed within the housing, an adjustable resistor disposed below the buzzer body, a microprocessor disposed below the adjustable resistor, a battery disposed adjacent to the microprocessor, a reversing radar probe disposed above the buzzer body, an amplifier disposed outside the reversing radar probe, and a dust screen disposed above the amplifier. By integrating the buzzer with the reversing radar probe, the buzzer reduces the number of vehicle parts and installation complexity. Furthermore, the buzzer can automatically adjust the sound volume based on the distance between the car and a person or animal, enhancing the warning effect. The driver can also quickly and easily determine the distance between the car and the person or animal based on the sound volume, allowing them to adjust their speed in a timely manner to reduce the risk of danger. However, if the electronic components inside the buzzer body or housing malfunction, the reversing buzzer must be removed from the vehicle body for repair, which is time-consuming and labor-intensive, with low repair efficiency. Furthermore, removing the housing involves screwing, making quick disassembly impossible. Furthermore, the reversing buzzer is only protected by a dust screen when colliding with an object, leaving the buzzer body ineffective and prone to failure. Utility Model Content

[0003] In view of the problems existing in the above-mentioned prior art, the purpose of the present invention is to provide a convenient reversing buzzer, which can not only realize the rapid disassembly and assembly of the buzzer body, but also ensure the stability of the buzzer body after installation; in addition, the reversing buzzer can buffer the buzzer body when colliding with an object, thereby reducing the failure rate of the buzzer body.

[0004] The purpose of the utility model is achieved through the following technical solutions:

[0005] The cam is secured to the bottom of the housing and has a camming mechanism adapted to engage said moving means and to engage said moving means. The cam is secured to the bottom of the housing and is adapted to engage said moving means. The cam is secured to the bottom of the housing and is adapted to engage said moving means.

[0006] Based on further optimization of the above scheme, multiple sliding blocks are evenly arranged in the middle of the outer wall of the mounting seat and around its axis, and vertical sliding grooves are opened on the side walls of the groove corresponding to the sliding blocks. The sliding blocks are slidably engaged in the corresponding vertical sliding grooves, thereby realizing relative sliding between the mounting seat and the outer shell and hard limiting the rotation of the mounting seat relative to the outer shell.

[0007] Based on further optimization of the above solution, a first connector is fixedly arranged in the middle of the bottom surface of the mounting seat, and the end of the first connector away from the mounting seat passes through the bottom surface of the shell, the end of the first connector located on the lower side of the shell is connected to the corresponding connector of the vehicle body, and the first spring is evenly distributed on the outer circle of the first connector around the central axis of the mounting seat; a second connector is fixedly arranged in the middle of the top surface of the mounting seat, and a connecting groove is provided on the bottom surface of the buzzer body corresponding to the second connector to realize connection and signal control between the buzzer body and the mounting seat.

[0008] Based on further optimization of the above solution, a limiting ring is fixedly provided on the outer wall of one end of the first connector located on the lower side of the shell, thereby preventing the first connector from sliding into the inside of the shell.

[0009] Based on further optimization of the above solution, the number of the positioning mechanisms is no less than six.

[0010] Based on further optimization of the above solution, a limit block is fixedly provided at the top end of the sliding rod on the upper side of the turntable to prevent the sliding rod from being separated from the arc groove.

[0011] Based on further optimization of the above solution, a coaxial annular sealing sleeve is provided on the inner wall of the groove and located between the positioning pin and the mounting seat, and the inner wall of the annular sealing sleeve contacts the outer wall of the buzzer body.

[0012] The following are the technical effects of the present invention:

[0013] The present application achieves a stable positioning of the buzzer body within the groove of the housing through the cooperation of a positioning mechanism consisting of a first spring, a mounting seat, a slide rod, a positioning pin, and a second spring, thereby facilitating the installation of the buzzer body. At the same time, the provision of a turntable facilitates the positioning mechanism to release the fixation and position limiting of the buzzer body, and the elastic force of the first spring causes the mounting seat to be fully upwardly ejected, thereby facilitating the disassembly of the buzzer body and facilitating the repair and replacement of the buzzer body after a malfunction. In addition, the present application achieves a stable position limiting of the buzzer body through the cooperation of the first spring, the mounting seat, the positioning pin, and the buzzer body, while achieving a buffering effect on the buzzer body when it is impacted, thereby reducing the failure rate of the buzzer body and increasing the service life of the buzzer body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural diagram of the reversing buzzer in Example 1 of the present utility model.

[0015] Figure 2 for Figure 1 A partial enlarged view of middle A.

[0016] Figure 3 for Figure 1 BB cross-sectional view.

[0017] Figure 4 This is a structural diagram of the reversing buzzer in Example 2 of the present utility model.

[0018] Among them, 10, housing; 11, annular sealing sleeve; 12, mounting lug; 20, mounting seat; 21, sliding block; 22, first spring; 23, first connector; 230, limiting ring; 24, second connector; 30, buzzer body; 40, turntable; 41, arc groove; 51, slide rod; 510, limiting block; 52, positioning pin; 53, second spring; 60, protective cover. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] Example 1:

[0021] A portable reversing buzzer includes a housing 10, a mounting base 20, a buzzer body 30, a turntable 40 and a positioning mechanism. Figure 1As shown: a groove is provided in the middle of the housing 10 and a mounting seat 20 is slidably arranged in the groove. The mounting seat 20 (the longitudinal section) is a concave structure and the bottom thereof (i.e. the mounting seat 20) is connected to the bottom surface of the groove of the housing 10 through a first spring 22; see Figure 1 As shown: a plurality of sliding blocks 21 are evenly arranged in the middle of the outer wall of the mounting seat 20 and around its axis (the number of sliding blocks 21 is generally 3 to 6, and 4 sliding blocks 21 are used in this embodiment), and a vertical sliding groove is provided on the side wall of the groove corresponding to the sliding block 21 (such as Figure 1 As shown), the sliding block 21 slides and engages in the corresponding vertical slide groove, thereby achieving relative sliding between the mounting base 20 and the shell 10 while hard limiting the rotation of the mounting base 20 relative to the shell 10. A first connector 23 is fixedly provided in the middle of the bottom surface of the mounting base 20, and the end of the first connector 23 away from the mounting base 20 passes through the bottom surface of the shell 10 (the outer wall of the first connector 23 is slidably connected to the bottom surface of the shell 10), and the end of the first connector 23 located on the lower side of the shell 10 is connected to the corresponding connector on the vehicle body (thereby realizing the vehicle control system for the buzzer body 30 signal recognition, power-on and other functions), and a limit ring 230 is fixedly provided on the outer wall of the end of the first connector 23 located on the lower side of the shell 10 (as shown). Figure 1 As shown, the first connector 23 is prevented from sliding into the housing 10. First springs 22 are evenly distributed around the outer ring of the first connector 23 around the central axis of the mounting base 20 (the number of first springs 22 is no less than two and is determined based on actual conditions. In this embodiment, three evenly distributed first springs 22 are used). A second connector 24 is fixedly mounted in the middle of the top surface of the mounting base 20. A connecting slot is defined on the bottom surface of the buzzer body 30, corresponding to the second connector 24, to achieve connection and signal control between the buzzer body 30 and the mounting base 24. (The first and second connectors 23 and 24 share common terminals, i.e., the terminals extend through the bottom surface of the mounting base 24, with the upper ends of the terminals corresponding to the second connector 24 and the lower ends corresponding to the first connector 23.)

[0022] The buzzer body 30 is clamped on the mounting base 20 and its top surface (i.e., the buzzer body 30) is located on the upper side of the top surface of the housing 10 (i.e., the top surface of the buzzer body 30 after installation is located on the upper side of the top surface of the housing 10, as shown in FIG. Figure 1 As shown); a rotating turntable 40 is coaxially arranged on the top surface of the housing 10 and a through hole is provided in the middle of the turntable 40 corresponding to the buzzer body 30 (to avoid interference between the turntable 40 and the buzzer body 30, that is, the cross section of the turntable 40 is annular and the turntable 40 is colinear with the central axis of the housing 10, and the turntable 40 is rotatably arranged on the end surface of the housing 10), the positioning mechanisms are evenly distributed around the central axis of the turntable 40 and the number of positioning mechanisms is not less than six groups (such as Figure 3As shown, in this embodiment, the positioning mechanism adopts six groups), including a slide rod 51, a positioning pin 52 and a second spring 53. The end surface of the housing 10 located at the outer ring of the groove (around its axis) is evenly provided with a slide groove and the slide rod 51 is slidably arranged in the slide groove (combined with Figure 1 and Figure 2 As shown in FIG), the turntable 40 opens an arc groove 41 corresponding to the slide groove (as shown in FIG. Figure 3 As shown in FIG, the top of the slide rod 51 passes through the corresponding arc groove 41 and is slidably connected. A limit block 510 is fixedly provided at the top of the slide rod 51 on the upper side of the turntable 40 to prevent the slide rod 51 from being separated from the arc groove 41. A positioning pin 52 (as shown in FIG, 5 ) is fixedly provided at the middle of one side of the slide rod 51 close to the groove (i.e., close to the central axis of the housing 10). Figure 2 As shown, the end of the positioning pin 52 away from the slide rod 51 is set as a round head structure), the side away from the groove is connected to the side wall of the slide groove through the second spring 53, the end of the positioning pin 52 away from the slide rod 51 passes through the housing 10 (and is located in the groove), and the buzzer body 30 is provided with a positioning groove corresponding to the positioning pin 52 (as shown in FIG. Figure 2 As shown, the height of the positioning groove is greater than the maximum diameter of the positioning pin 52).

[0023] A coaxial annular sealing sleeve 11 is provided on the inner wall of the groove and between the positioning pin 52 and the mounting seat 20 (see Figure 1 As shown), the inner wall of the annular sealing sleeve 11 contacts the outer wall of the buzzer body 30 (the annular sealing sleeve 11 can be made of rubber. The annular sealing sleeve 11 can firstly limit the upward sliding of the mounting base 20, secondly guide and limit the sliding of the positioning pin 52, and thirdly fix and buffer the buzzer body 30).

[0024] Working principle:

[0025] During installation: First, the entire housing 10 is fixed to the vehicle body by means of screws or other connecting mechanisms, and the first connector 23 is connected to the corresponding connector on the vehicle body (this is a conventional method in the art); then, Figure 1The buzzer body 30 is inserted into the groove from top to bottom in the direction shown (in this process, the connecting groove of the buzzer body 30 is aligned with the second connector 24). During the insertion process, the outer wall of the buzzer body 30 presses against the positioning pin 52, causing the positioning pin 52 to slide in a direction away from each other, thereby pushing the slide bar 51 to slide toward the side close to the second spring 53, the turntable 40 rotates, and the second spring 53 is compressed (the turntable 40 can also be rotated synchronously during the insertion of the buzzer body 30 to improve convenience). The bottom of the buzzer body 30 cooperates with the mounting base 20 and pushes the mounting base 20 downward (at this time, the second connector 24 is inserted into the connecting groove of the buzzer body 30), and the first spring 22 is compressed. Afterwards, the positioning pin 52 is stuck in the corresponding positioning groove of the buzzer body 30 due to the elastic force of the second spring 53, and the entire buzzer body 30 is pushed upward by the elastic force of the first spring 22, thereby achieving the fixation of the buzzer body 30 in the housing 10.

[0026] To disassemble, press the buzzer body 30 downward and rotate the dial 40 synchronously to disengage the locating pin 52 from the corresponding locating slot. Then, release the buzzer body 30. Due to the elastic force of the first spring 22, the mounting base 20 drives the buzzer body 30 to spring upward. Finally, release the dial 40 and pull out the buzzer body 30.

[0027] Example 2:

[0028] As a further optimization of the solution of the utility model, based on the solution of Example 1, refer to Figure 2 As shown, a ring-shaped mounting lug 12 is fixedly sleeved on the top of the outer wall of the shell 10, and an external thread is set on the outer wall of the mounting lug 12. The outer ring of the top of the shell 10 is connected to the protective cover 60 with a protective net set in the middle through the external thread, thereby realizing the protection and dust-proof functions of the buzzer body 30.

[0029] Example 3:

[0030] As a further optimization of the solution of the present invention, on the basis of the solution of Example 1 or Example 2, in order to facilitate the rotation control of the turntable 40, a protruding ridge is fixedly provided on the outer ring of the turntable 40 and the height of the ridge is greater than the thickness of the turntable 40. The number of the ridges is not less than two and is evenly distributed around the central axis of the turntable 40.

Claims

1. A portable reversing buzzer, characterized by: The device comprises a housing, a mounting base, a buzzer body, a turntable and a positioning mechanism. A groove is provided in the middle of the housing and the mounting base is slidably arranged in the groove. The mounting base is a concave-shaped structure and its bottom is connected to the bottom surface of the groove of the housing via a first spring. The buzzer body is clamped on the mounting base and its top surface is located above the top surface of the housing. A rotating turntable is coaxially arranged on the top surface of the shell, and a through hole is provided in the middle of the turntable corresponding to the buzzer body. The positioning mechanism is evenly distributed around the central axis of the turntable, and includes a slide rod, a positioning pin and a second spring. The end surface of the shell located on the outer ring of the groove is evenly provided with slide grooves, and a slide rod is slidably arranged in the slide groove. An arc groove is provided on the turntable corresponding to the slide groove. The top end of the slide rod passes through the corresponding arc groove and is slidably connected. A positioning pin is fixedly provided in the middle of the side of the slide rod close to the groove, and the side away from the groove is connected to the side wall of the slide groove through the second spring. The end of the positioning pin away from the slide rod passes through the shell, and a positioning groove is provided on the buzzer body corresponding to the positioning pin.

2. A portable reversing buzzer according to claim 1, characterized in that: A plurality of sliding blocks are evenly arranged in the middle of the outer wall of the mounting seat and around its central axis, and vertical sliding grooves are provided on the side walls of the groove corresponding to the sliding blocks, and the sliding blocks are slidably engaged in the corresponding vertical sliding grooves.

3. A portable reversing buzzer according to claim 1 or 2, characterized in that: A first connector is fixedly arranged in the middle of the bottom surface of the mounting seat, and an end of the first connector away from the mounting seat passes through the bottom surface of the shell. An end of the first connector located on the lower side of the shell is connected to a corresponding connector on the vehicle body, and a first spring is evenly distributed on the outer ring of the first connector around the central axis of the mounting seat; a second connector is fixedly arranged in the middle of the top surface of the mounting seat, and a connecting groove is provided on the bottom surface of the buzzer body corresponding to the second connector.

4. The portable reversing buzzer according to claim 3, characterized in that: A limiting ring is fixedly provided on the outer wall of one end portion of the first connector located at the lower side of the shell.

5. The portable reversing buzzer according to claim 1, characterized in that: The number of the positioning mechanisms is no less than six.

6. The portable reversing buzzer according to claim 1, characterized in that: A limit block is fixedly provided on the top end of the sliding rod located on the upper side of the turntable.

7. The portable reversing buzzer according to claim 1, characterized in that: A coaxial annular sealing sleeve is provided on the inner wall of the groove and is located between the positioning pin and the mounting seat, and the inner wall of the annular sealing sleeve contacts the outer wall of the buzzer body.

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