CN212163597U - Sound box push-out mechanism and electronic equipment - Google Patents

Abstract

The utility model belongs to the technical field of electronic equipment, and relates to a sound box pushing mechanism and electronic equipment. The speaker pushing mechanism includes a mounting frame, a first pushing device, and a second pushing device. The first pushing device includes a first power source, a lead screw and a lead screw nut. The first power source is connected to the mounting frame. The power output end drives the screw rod to rotate, the screw rod nut is sleeved on the screw rod, the second pushing device includes a second power source, a transmission mechanism and a mounting seat, the second power source is connected to the mounting frame, and the input end of the transmission mechanism is connected to the first power source. The power output end of the two power sources, the mounting seat is sleeved on the moving guide column of the mounting frame, the transmission mechanism drives the mounting seat to move, the extension direction of the central axis of the moving guide column and the extension direction of the central axis of the screw rod form a predetermined angle, Mounts are used to connect speakers. The application of the technical solution solves the problem of uncoordinated placement caused by the large volume of the independent sound box, which needs to be fixed in a fixed position in the room.

Description

Speaker launch mechanism, electronic equipment

technical field

The utility model belongs to the technical field of electronic equipment, in particular to a sound box pushing mechanism and electronic equipment.

Background technique

With the continuous deepening of the "full screen" design concept, the camera design of mobile phones, TVs, notebook computers, tablet computers and other electronic equipment has also entered the era of retractable hidden design, and speakers are one of the important components of electronic equipment products. One is essential. With the development and progress of science and technology, people not only pursue performance requirements, but also need to meet visual enjoyment. Therefore, the overall style coordination and fashion sense of electronic products are particularly important. In real life, the overall size of the independent speaker is relatively large, and it needs to be placed in a fixed position in the room, and is connected to the electronic equipment through wires. In this way, on the one hand, there is a situation of uncoordinated placement, and the wire pulling arrangement is relatively Messy, on the other hand, will affect people's mood.

Utility model content

The purpose of the utility model is to provide a sound box pushing mechanism and electronic equipment, which aims to solve the problem of uncoordinated placement of independent sound box due to its large volume and needs to be fixed in a fixed position in a room.

In order to achieve the above-mentioned purpose, the technical scheme adopted by the present utility model is: a sound box pushing mechanism, comprising: an installation frame, the installation frame has a first installation position and a second installation position; a first push-out device, the first push-out device is located in the first In the installation position, the first push-out device includes a first power source, a lead screw and a lead screw nut, the first power source is connected to the mounting frame, and the power output end of the first power source drives the lead screw to rotate, wherein the lead screw can rotate around its center The axis is rotatably installed on the mounting frame, the screw nut is sleeved on the screw rod, and the screw nut is used to fixedly connect the mounted body; the second push-out device is located at the second installation position, and the second push-out device includes a second push-out device. A power source, a transmission mechanism and a mounting seat, the second power source is connected to the mounting frame, the input end of the transmission mechanism is connected to the power output end of the second power source, the second mounting position is provided with a movement guide post, and the mounting seat is sleeved on the moving On the guide column, the output end of the transmission mechanism is connected with the mounting seat to drive the mounting seat to move along the extending direction of the central axis of the moving guide column. Angle, the mount is used to connect the speaker.

Further, the extension direction of the central axis of the movement guide post is perpendicular to the extension direction of the central axis of the screw rod, and the central axis of the movement guide post is perpendicular to the extension plane of the mounting frame.

Further, the transmission mechanism includes a reducer and a linkage structure, the input end of the reducer is connected with the power output end of the second power source, the output end of the reducer is connected with the first end of the linkage structure, and the second end of the linkage structure is connected with the installation. The seat is connected to drive the mounting seat to move along the extension direction of the central axis of the movement guide column.

Further, the linkage structure includes a connecting rod and a connecting column, the first end of the connecting rod is fixedly connected to the output end of the reducer, the connecting column is fixedly connected to the second end of the connecting rod, and the end of the mounting seat is close to the second power source. There is a matching groove, and the connecting column extends into the matching groove.

Further, the linkage structure includes a linkage gear and a linkage rack, the linkage gear is fixedly connected to the output end of the reducer, the linkage rack is fixedly connected to the mounting seat, and the meshing teeth of the linkage gear mesh with the meshing teeth of the linkage rack.

Further, the speaker pushing mechanism further includes: a controller, the controller is electrically connected to the first power source and the second power source respectively; a first position sensing component, the first position sensing component includes a first sensor and a second sensor, the first A sensor and a second sensor are installed on the mounting frame at intervals along the extending direction of the central axis of the moving guide post, and the mounting seat is provided with a detection extension rod. The extension rod cooperates to determine the first stop position where the mounting seat stays, and the second sensor cooperates with the detection extension rod to determine the second stop position where the installation seat stays; the second position sensing component, the second position sensing component includes a first contact sensor and The second contact sensor, the first contact sensor and the second contact sensor are both connected to the mounting frame, the first contact sensor is close to the first end of the lead screw, the second contact sensor is close to the second end of the lead screw, the first contact sensor and the second contact sensor are connected to the mounting frame. The two contact sensors are electrically connected to the controller respectively, the lead screw nut touches the first contact sensor to determine the first parking position of the lead screw nut, and the lead screw nut touches the second contact sensor to determine the second stop position of the lead screw nut stop position.

Further, the first pushing device also includes a transmission gear set, the transmission gear set includes an input gear and an output gear, the power output end of the first power source is connected with the input gear, the input gear transmits power to the output gear, and the screw is synchronized with the output gear. During rotation, the central axis of the screw rod is parallel to the central axis of the power output end of the first power source, and both the first power source and the screw rod are located on the same side of the input gear.

Further, the first push-out device also includes a first guide rod, the first guide rod is fixedly connected to the mounting frame, the central axis of the first guide rod is parallel to the central axis of the lead screw, and the lead screw nut is provided with a guide convex portion to guide the The convex portion is provided with a first guide through hole, and the first guide rod passes through the first guide through hole.

Further, the first installation position is provided with a second guide rod and a connecting block, the second guide rod is fixedly connected to the mounting frame, the center axis of the second guide rod is parallel to the center axis of the first guide rod, and the connecting block is provided with The second guide through hole, the second guide rod passes through the second guide through hole, and the connecting block is used for fixedly connecting the installed body.

According to another aspect of the present invention, an electronic device is provided. Specifically, the electronic device includes a housing and the aforementioned speaker ejecting mechanism, the housing has opposite and parallel front side and back side, the screw nut is fixedly connected to the back side, and the central axis of the moving guide post extends in a direction perpendicular to front side.

The utility model at least has the following beneficial effects:

The loudspeaker is assembled through the loudspeaker pushing mechanism, so that the loudspeaker and the electronic equipment are assembled into a whole, and the loudspeaker is hidden and cannot be seen when not in use, which simplifies the arrangement of the room appliances. The first push-out device and the second push-out device push the speaker out to a position flush with the plane where the TV screen is located. At this time, not only can the playback state of the speaker be observed, but the sound played by the speaker is not blocked and disturbed at this time, ensuring the sound quality of playback.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only for the present utility model. For some novel embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

Fig. 1 is the assembly structure schematic diagram of the first angle of view of the speaker push-out mechanism of the embodiment of the present utility model;

2 is a schematic view of the assembly structure of the speaker ejecting mechanism according to the embodiment of the present utility model from a second perspective;

3 is a schematic diagram of the assembly structure from the first perspective after disassembling the adapter plate and the connecting block in the speaker ejecting mechanism according to the embodiment of the present invention;

4 is a schematic structural diagram of a mounting frame in a speaker pushing mechanism according to an embodiment of the present invention;

5 is a structural diagram of an adapter plate and a connection block in the speaker push-out mechanism according to the embodiment of the present utility model;

6 is a schematic structural diagram of a first push-out device in a speaker push-out mechanism according to an embodiment of the present invention;

Fig. 7 is the structural diagram of the second push-out device in the speaker push-out mechanism according to the embodiment of the present invention;

FIG. 8 is an enlarged view of part A in FIG. 7 .

Among them, each reference sign in the figure:

10. Mounting frame; 11. First mounting position; 12. Second mounting position; 121. Movement guide column; 20. First push-out device; 21. First power source; 22. Lead screw; 23. Lead screw nut; 231, guide protrusion; 24, transmission gear set; 241, input gear; 242, output gear; 25, first guide rod; 26, second guide rod; 27, connecting block; 28, reduction torque increaser; 30, 31, second power source; 32, transmission mechanism; 321, reducer; 322, linkage structure; 3221, connecting rod; 3222, connecting column; 33, mounting seat; 330, matching groove; 331, detection 40, a sound box; 50, a first position sensing component; 51, a first sensor; 52, a second sensor; 100, an adapter plate.

Detailed ways

The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to be used to explain the present invention, but should not be construed as a limitation of the present invention.

In the description of the present invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical" , "horizontal", "top", "bottom", "inside", "outside" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, only for the convenience of describing the present utility model and simplifying the description, Rather than indicating or implying that the indicated device or element must have a particular orientation, be constructed and operate in a particular orientation, it should not be construed as a limitation of the present invention.

In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first", "second", etc., may expressly or implicitly include one or more of that feature. In the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

In the present utility model, unless otherwise expressly specified and limited, the terms "installation", "connection", "connection", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integration; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication between the two elements or the interaction relationship between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

As shown in FIGS. 1 to 8 , the present invention provides a speaker ejecting mechanism, which can be applied to the installation of electronic equipment such as television speakers, integrated computer speakers (in the present invention, with The TV uses the speaker pushing mechanism as an example for illustration, that is, the electronic device is a TV). Wherein, the speaker push-out mechanism includes an installation frame 10, a first push-out device 20 and a second push-out device 30. Specifically, the installation frame 10 has a first installation position 11 and a second installation position 12, and the first push-out device 20 includes a first push-out device 20. The power source 21 , the lead screw 22 and the lead screw nut 23 , and the second push-out device 30 includes a second power source 31 , a transmission mechanism 32 and a mounting seat 33 . During specific assembly, the first push-out device 20 is located at the first installation position 11, the first power source 21 is connected to the mounting frame 10, the power output end of the first power source 21 drives the screw rod 22 to rotate, and the screw rod 22 can revolve around its central axis It is rotatably installed on the mounting frame 10, the screw nut 23 is sleeved on the screw rod 22, and the screw nut 23 is used for fixedly connecting the mounted body (the mounted body is the shell of the electronic equipment, in the present invention, the TV The casing of the machine is the installed body). The mounting frame 10 acts as a stable support for the movement of the second pushing device 30 . Therefore, the second pushing device 30 is located at the second installation position 12 , the second power source 31 is connected to the mounting frame 10 , and the input end of the transmission mechanism 32 is connected to the second power At the power output end of the source 31, a motion guide post 121 is provided at the second installation position 12, the motion guide post 121 is fixedly connected to the mounting frame 10, the mounting seat 33 is sleeved on the motion guide post 121, and the output end of the transmission mechanism 32 is connected to the moving guide post 121. The mounting seat 33 is connected to drive the mounting seat 33 to move along the extension direction of the central axis of the movement guide post 121 , and the extension direction of the central axis of the movement guide post 121 and the extension direction of the central axis of the screw rod 22 form a predetermined angle. Used to connect speakers 40.

The speaker push-out mechanism provided by the present invention is applied to assemble the speaker on the TV, and is fixedly connected to the casing of the TV through the screw nut 23. When the first power source 21 outputs power to drive the screw 22 to rotate, the screw nut will cause the screw nut to rotate. 23 is fixed with the casing of the TV set, so the entire mounting frame 10 will move relative to the screw nut 23 along the extension direction of the central axis of the screw rod 22, at this time, the speaker 40 installed on the mounting seat 33 will realize the first stage Launch action. Then, the second power source 31 is activated to drive the mounting base 33 to move along the extending direction of the central axis of the movement guide post 121 , so as to realize the second-stage push-out action for the sound box 40 . After the first-level push-out action and the second-level push-out action are completed in coordination, the speaker 40 is pushed out from the hidden state (the speaker 40 is completely hidden on the back of the TV set) to a position flush with the plane of the TV screen, then The speaker 40 is in an exposed state and performs playback work. When the sound box 40 is no longer working, the sound box 40 can be driven by the first power source 21 and the second power source 31 to perform retraction movements opposite to the first push-out action and the second-stage push-out action, respectively, so that the sound box 40 can be pushed out. Return to hidden state. Therefore, the speaker 40 is assembled through the speaker ejecting mechanism, so that the speaker 40 is assembled with the TV to form a whole, and the speaker 40 is hidden and cannot be seen when not in use, which simplifies the arrangement of the room appliances. During playback, the speaker 40 is pushed out to a position flush with the plane of the TV screen through the first push-out device 20 and the second push-out device 30. At this time, not only can the playback state of the speaker 40 be observed, but also the sound box 40 plays a sound. It is not blocked and interfered, and the sound quality of the playback is guaranteed.

In this embodiment, the extension direction of the central axis of the movement guide post 121 is perpendicular to the extension direction of the central axis of the lead screw 22 , and the central axis of the movement guide post 121 is perpendicular to the extension plane of the mounting frame 10 . Generally, on the TV set, the speaker 40 is raised first and then pushed out in a push-out sequence, that is: the lead screw 22 cooperates with the lead screw nut 23 to lift the mounting frame 10, so as to realize the push-out or retraction action of the speaker 40; the second The power source 31 drives the mounting base 33 to reciprocate along the movement guide post 121 , so that the sound box 40 can be pushed out or retracted horizontally. In the present utility model, the vertical lifting motion and the horizontal reciprocating motion can be completed independently in sequence: when pushing out, first lift up vertically and then push out horizontally; when retracting, first retract horizontally and then push out horizontally. way to descend vertically. The vertical lifting motion and the horizontal reciprocating motion can also be performed synchronously, that is, when pushing out, the first power source 21 drives the mounting frame 10 to rise, while the second power source 31 drives the mounting seat 33 to push out horizontally; when retracting , while the second power source 31 drives the mounting seat 33 to retract horizontally, while the first power source 21 drives the mounting frame 10 to descend.

As shown in FIG. 8 , the transmission mechanism 32 includes a reducer 321 and a linkage structure 322 . The reducer 321 decelerates and increases the torque output by the second power source 31 , and the linkage structure 322 transmits and realizes the power output by the reducer 321 . Adjustment of transfer direction. Specifically, the input end of the reducer 321 is connected to the power output end of the second power source 31 , the output end of the reducer 321 is connected to the first end of the linkage structure 322 , and the second end of the linkage structure 322 is connected to the mounting seat 33 to The mounting base 33 is driven to move along the extending direction of the central axis of the movement guide post 121 .

Further, the linkage structure 322 includes a connecting rod 3221 and a connecting column 3222. The first end of the connecting rod 3221 is fixedly connected to the output end of the reducer 321, and the connecting column 3222 is fixedly connected to the second end of the connecting rod 3221 (the connecting column 3222 is connected to the output end of the reducer 321). The connecting rods 3221 can be fixed by welding; a D-shaped hole can be opened at the second end of the connecting rod 3221, and the end of the connecting column 3222 can be set as a D-shaped head adapted to the D-shaped hole. The end of the mounting seat 33 close to the second power source 31 is provided with a matching groove 330 , and the connecting post 3222 extends into the matching groove 330 . In the speaker pushing mechanism of this embodiment, as shown in FIGS. 7 and 8 , when the reducer 321 drives the connecting rod 3221 and the connecting column 3222 to swing to push the mounting seat 33 to move along the moving guide column 121 , the connecting column 3222 cooperates with the moving guide column 121 . The groove 330 also moves relative to the matching groove 330 . Of course, in another feasible embodiment, the linkage structure 322 includes a linkage gear and a linkage rack, the linkage gear is fixedly connected to the output end of the reducer 321, and the linkage rack is fixedly connected to the mounting seat 33. The extension direction is parallel to the extension direction of the central axis of the movement guide post 121, while the extension direction of the central axis of the linkage gear is perpendicular to the extension direction of the central axis of the movement guide post 121. The meshing teeth of the linkage gear mesh with the linkage rack. The teeth are meshed, that is, the linkage structure 322 composed of the connecting rod 3221 and the connecting column 3222 is replaced by the linkage structure 322 composed of the linkage gear and the linkage rack.

Referring to FIG. 1, FIG. 7 and FIG. 8 in combination, the speaker ejecting mechanism of the present invention further includes a controller (not shown), a first position sensing assembly 50 and a second position sensing assembly (not shown), wherein , the first position sensing assembly 50 includes a first sensor 51 and a second sensor 52, and the second position sensing assembly includes a first contact sensor (not shown) and a second contact sensor (not shown). In this embodiment, the controller is electrically connected to the first power source 21 and the second power source 31 respectively. The controller used in the present invention may be a PLC control module, an MCU chip control module, etc. The written control program realizes intelligent automatic control of the first power source 21 and the second power source 31 . The first sensor 51 and the second sensor 52 are installed on the mounting frame 10 at intervals along the extending direction of the central axis of the motion guide post 121 . The mounting seat 33 is provided with a detection extension rod 331 . Electrically connected, the first sensor 51 cooperates with the detection extension rod 331 to determine the first stop position of the mounting seat 33, and the second sensor 52 cooperates with the detection extension rod 331 to determine the second stop position of the installation seat 33. The utility model The first sensor 51 and the second sensor 52 used in the new embodiment are both photoelectric sensors, and the detection extension rod 331 cooperates with the photoelectric sensor to determine the first stop position and the second stop position (of course, the first sensor 51 and the second sensor 52 can also use a contact sensor. At this time, the first sensor 51 and the second sensor 52 are respectively arranged at both ends of the moving guide post 121, and during the movement of the mounting seat 33 along the moving guide post 121, when the mounting seat 33 touches The first sensor 51 then the controller controls the second power source 31 to stop so that the mounting seat 33 stays at the first stop position, and when the mounting seat 33 touches the second sensor 52 , the controller controls the second power source 31 to stop and makes the mounting seat 33 stop. in the second stop position). Both the first contact sensor and the second contact sensor are connected to the mounting frame 10, the first contact sensor is close to the first end of the screw rod 22, the second contact sensor is close to the second end of the screw rod 22, and the first contact sensor is in contact with the second The sensors are respectively electrically connected to the controller, the lead screw nut 23 touches the first contact sensor to determine the first parking position of the lead screw nut 23, and the lead screw nut 23 touches the second contact sensor to determine the first stop position of the lead screw nut 23. Two parking positions.

As shown in FIGS. 1 to 3 and 6 , the first pushing device 20 further includes a transmission gear set 24 , the transmission gear set 24 includes an input gear 241 and an output gear 242 , and the power output end of the first power source 21 and the input gear 241 Connected, the input gear 241 transmits power to the output gear 242 . In the embodiment of the present utility model, the number of teeth of the input gear 241 and the number of teeth of the output gear 242 may be equal, and at this time, the cooperation between the input gear 241 and the output gear 242 only changes the power transmission direction of the first power source 21. Reasonable use of the arrangement space of the first installation position 11 achieves the purpose of reducing the design volume of the entire speaker push-out mechanism, and the speaker push-out mechanism has a smaller volume and a more compact structure; The ratio of the number of teeth is less than 1. At this time, the power transmission between the input gear 241 and the output gear 242 can not only change the power transmission direction of the first power source 21, but also realize deceleration and torque increase; in addition, the number of teeth of the input gear 241 and the output gear If the ratio of the number of gear teeth of 242 is greater than 1, the power transmitted between the input gear 241 and the output gear 242 at this time is a speed increase and a torque reduction (generally, this arrangement is not adopted). The lead screw 22 rotates synchronously with the output gear 242 , the central axis of the lead screw 22 is parallel to the central axis of the power output end of the first power source 21 , and the first power source 21 and the lead screw 22 are located on the same side of the input gear 241 . In this embodiment, as shown in FIGS. 2 and 6 , a deceleration torque increaser 28 is provided between the first power source 21 and the input gear 241 , so that the power output by the first power source 21 can be performed in two stages. After decelerating and increasing the torque, it is transmitted to the screw rod 22 to drive the screw rod 22 to rotate. As shown in FIG. 6 , the first push-out device 20 further includes a first guide rod 25. The first guide rod 25 is fixedly connected to the mounting frame 10. The central axis of the first guide rod 25 is parallel to the central axis of the screw rod 22. The rod nut 23 is provided with a guide protrusion 231, the guide protrusion 231 is provided with a first guide through hole, and the first guide rod 25 passes through the first guide through hole.

Further, the first installation position 11 is provided with a second guide rod 26 and a connecting block 27 , the second guide rod 26 is fixedly connected to the mounting frame 10 , and the central axis of the second guide rod 26 is the same as the central axis of the first guide rod 25 In parallel, the connecting block 27 is provided with a second guiding through hole, the second guiding rod 26 passes through the second guiding through hole, and the connecting block 27 is used for fixedly connecting the casing of the TV set. In this embodiment, the connecting block 27 and the screw nut 23 are fixedly connected to the casing of the TV set at the same time, thus improving the stability of the speaker push-out mechanism assembled to the casing of the TV set. Further, the connecting block 27 and the screw nut 23 are both fixedly connected to the adapter plate 100, and then fixedly connected to the casing of the TV through the adapter plate 100, and the contact surface between the adapter plate 100 and the casing of the TV is large. , the assembly stability of the speaker push-out mechanism is better improved.

As shown in FIG. 4 , in the actual design process, the first installation position 11 and the second installation position 12 can be exchanged with each other. For example, the first installation position 11 shown in FIG. 4 is located on the right side of the second installation position 12 . During design and production, the first installation position 11 can be changed to be located on the left side of the second installation position 12 according to the actual assembly and use conditions, and the second guide rod 26 and the connecting block 27 can be changed to the left side of the screw rod 22 at the same time. , and other design structures remain unchanged. Therefore, the present invention does not limit the relative positional relationship between the first installation position 11 and the second installation position 12 on the installation frame 10 .

In the present invention, preferably, both the first power source 21 and the second power source 31 are assembled using low-power motors.

According to another aspect of the present invention, an electronic device is provided. In this embodiment, the electronic device includes a casing (not shown) and the aforementioned speaker ejecting mechanism, the casing has opposite and parallel front side and back side, the screw nut 23 is fixedly connected to the back side, and the movement guides The direction in which the central axis of the column 121 extends is perpendicular to the front side.

The speaker push-out mechanism provided by the present invention is applied to assemble the speaker on the TV, and is fixedly connected to the casing of the TV through the screw nut 23. When the first power source 21 outputs power to drive the screw 22 to rotate, the screw nut will cause the screw nut to rotate. 23 is fixed with the casing of the TV set, so the entire mounting frame 10 will move relative to the screw nut 23 along the extension direction of the central axis of the screw rod 22, at this time, the speaker 40 installed on the mounting seat 33 will realize the first stage Launch action. Then, the second power source 31 is activated to drive the mounting base 33 to move along the extending direction of the central axis of the movement guide post 121 , so as to realize the second-stage push-out action for the sound box 40 . After the first-level push-out action and the second-level push-out action are completed in coordination, the speaker 40 is pushed out from the hidden state (the speaker 40 is completely hidden on the back of the TV set) to a position flush with the plane of the TV screen, then The speaker 40 is in an exposed state and performs playback work.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection of the utility model.

Claims (10)

1. a loudspeaker push-out mechanism, is characterized in that, comprises: an installation frame (10), the installation frame (10) has a first installation position (11) and a second installation position (12); A first push-out device (20), the first push-out device (20) is located at the first installation position (11), and the first push-out device (20) includes a first power source (21), a lead screw (22) ) and a screw nut (23), the first power source (21) is connected to the mounting frame (10), and the power output end of the first power source (21) drives the screw (22) to rotate , wherein the lead screw (22) is rotatably mounted on the mounting frame (10) around its central axis, the lead screw nut (23) is sleeved on the lead screw (22), and the lead screw The nut (23) is used to fix and connect the installed body; A second push-out device (30), the second push-out device (30) is located at the second installation position (12), and the second push-out device (30) includes a second power source (31), a transmission mechanism (32) ) and a mounting seat (33), the second power source (31) is connected to the mounting frame (10), and the input end of the transmission mechanism (32) is connected to the power of the second power source (31) The output end, the second installation position (12) is provided with a movement guide post (121), the mounting seat (33) is sleeved on the movement guide post (121), and the output of the transmission mechanism (32) The end is connected with the mounting seat (33) to drive the mounting seat (33) to move along the extension direction of the central axis of the movement guide post (121), the extension direction of the central axis of the movement guide post (121) Forming a predetermined angle with the extending direction of the central axis of the screw rod (22), the mounting seat (33) is used for connecting the sound box (40). 2. The sound box pushing mechanism according to claim 1 is characterized in that, The extension direction of the central axis of the movement guide post (121) is perpendicular to the extension direction of the central axis of the lead screw (22), and the central axis of the movement guide post (121) is perpendicular to the mounting bracket ( 10) of the extension plane. 3. The sound box pushing mechanism according to claim 2 is characterized in that, The transmission mechanism (32) comprises a speed reducer (321) and a linkage structure (322), the input end of the speed reducer (321) is connected with the power output end of the second power source (31), and the speed reducer (321) is connected to the power output end of the second power source (31). The output end of (321) is connected to the first end of the linkage structure (322), and the second end of the linkage structure (322) is connected to the mounting seat (33) to drive the mounting seat (33) along the The movement guide post (121) moves in the extension direction of the central axis. 4. The sound box pushing mechanism according to claim 3 is characterized in that, The linkage structure (322) includes a connecting rod (3221) and a connecting column (3222), the first end of the connecting rod (3221) is fixedly connected to the output end of the reducer (321), and the connecting column ( 3222) is fixedly connected to the second end of the connecting rod (3221), the end of the mounting seat (33) close to the second power source (31) is provided with a matching groove (330), and the connecting post (3222) extends into the matching groove (330). 5. The loudspeaker push-out mechanism according to claim 3, characterized in that, The linkage structure (322) includes a linkage gear and a linkage rack, the linkage gear is fixedly connected to the output end of the reducer (321), and the linkage rack is fixedly connected to the mounting seat (33), so The meshing teeth of the interlocking gear mesh with the meshing teeth of the interlocking rack. 6. The sound box pushing mechanism according to claim 4 or 5 is characterized in that, The speaker pushing mechanism also includes: a controller, which is electrically connected to the first power source (21) and the second power source (31), respectively; A first position sensing assembly (50), the first position sensing assembly (50) comprising a first sensor (51) and a second sensor (52), the first sensor (51) and the second sensor (52) ) is mounted on the mounting frame (10) at intervals along the extending direction of the central axis of the movement guide column (121), the mounting seat (33) is provided with a detection extension rod (331), and the first sensor (51) ) and the second sensor (52) are respectively electrically connected to the controller, and the first sensor (51) cooperates with the detection extension rod (331) to determine the first position where the mounting seat (33) stays. a stop position, the second sensor (52) cooperates with the detection extension rod (331) to determine the second stop position where the mounting seat (33) stops; A second position sensing assembly, the second position sensing assembly includes a first contact sensor and a second contact sensor, the first contact sensor and the second contact sensor are both connected to the mounting bracket (10), and the The first contact sensor is close to the first end of the lead screw (22), the second contact sensor is close to the second end of the lead screw (22), the first contact sensor and the second contact sensor are respectively Electrically connected with the controller, the lead screw nut (23) touches the first contact sensor to determine the first parking position of the lead screw nut (23), the lead screw nut (23) The second contact sensor is touched to determine the second parking position of the lead screw nut (23). 7. The loudspeaker push-out mechanism according to claim 1 is characterized in that, The first push-out device (20) further includes a transmission gear set (24), the transmission gear set (24) includes an input gear (241) and an output gear (242), and the power of the first power source (21) The output end is connected with the input gear (241), the input gear (241) transmits power to the output gear (242), the screw (22) rotates synchronously with the output gear (242), the The central axis of the lead screw (22) is parallel to the central axis of the power output end of the first power source (21), and both the first power source (21) and the lead screw (22) are located at the input Same side as gear (241). 8. The speaker push-out mechanism according to claim 1, characterized in that, The first push-out device (20) further comprises a first guide rod (25), the first guide rod (25) is fixedly connected to the mounting bracket (10), and the center of the first guide rod (25) The axis is parallel to the central axis of the lead screw (22), the lead screw nut (23) is provided with a guide convex portion (231), and the guide convex portion (231) is provided with a first guide through hole. A first guide rod (25) passes through the first guide through hole. 9. The speaker push-out mechanism according to claim 8, characterized in that, The first installation position (11) is provided with a second guide rod (26) and a connecting block (27), the second guide rod (26) is fixedly connected to the installation frame (10), and the second guide rod (26) is fixedly connected to the mounting frame (10). The central axis of the guide rod (26) is parallel to the central axis of the first guide rod (25), the connecting block (27) is provided with a second guide through hole, and the second guide rod (26) passes through In the second guide through hole, the connecting block (27) is used for fixedly connecting the mounted body. 10. An electronic device, characterized in that it comprises a casing and the speaker push-out mechanism according to any one of claims 1 to 9, wherein the casing has opposite and parallel front and back sides, and the wire The rod nut (23) is fixedly connected to the back side surface, and the central axis of the movement guide post (121) extends in a direction perpendicular to the front side surface.

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