Lifting device, vehicle-mounted loudspeaker and vehicle

Abstract

The utility model discloses a lifting device, a vehicle-mounted loudspeaker and a vehicle. The lifting device comprises a base; the first ends of the cross lifting arm and the second lifting arm are selectively close to or far away from the first end of the first lifting arm so as to realize lifting of the loudspeaker body; the driving assembly is arranged on the base and comprises a driving piece and a transmission block, the driving piece is in transmission connection with the transmission block, the transmission block is connected with the first end of the second lifting arm, and a damping piece is arranged between the transmission block and the base. Therefore, by arranging the damping piece between the transmission block and the base, when the transmission block drives the first end of the second lifting arm to slide relative to the base, the damping piece generates damping force, so that the structure is simple, the number of structural components is small, the occupied space is small, arrangement and assembly are easy, and the sliding stability and smoothness of the transmission block can be improved; the smoothness and the lifting precision of the lifting device in the lifting process are improved, and meanwhile the large-stroke and small-stroke requirements of the lifting device can be met.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle technical field especially is involved in a kind of lifting device, vehicle-mounted loudspeaker and vehicle. BACKGROUND

[0002] With the development of science and technology and the improvement of user living standard, vehicle becomes the indispensable traffic tool of people. Part vehicle is provided with lifting loudspeaker, when not needing to use loudspeaker, loudspeaker can be stored, does not occupy additional space, such that not only help to keep the neat and beautiful of car interior, but also can reduce the risk of damage of loudspeaker.

[0003] In the related art, in the process that driving assembly drives loudspeaker to lift, there can be speed mutation, which can cause the lift of loudspeaker to be not smooth, or cause the lift position of lift platform to be inaccurate, affect the precision of lifting device. In addition, the structure of most driving assemblies of lifting device is complex, and there are many structural components, and the assembly process is complex, which can further increase the cost. SUMMARY

[0004] The utility model aims at at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a lifting device, which is not only simple in structure, but also can improve the smoothness and lift precision of the lifting process of the lifting device.

[0005] The utility model further provides a vehicle-mounted loudspeaker.

[0006] The utility model further provides a vehicle.

[0007] According to the lifting device of the utility model, including: base;Cross lifting arm, the cross lifting arm includes first lifting arm and second lifting arm that are cross arranged, the first end of the first lifting arm in the first direction is rotatably arranged on the base, the first end of the second lifting arm in the first direction is slidably arranged on the base, the cross lifting arm is suitable for mounting loudspeaker body, the first end of the second lifting arm is selectively close to or away from the first end of the first lifting arm, to realize the lift of loudspeaker body;Driving assembly, the driving assembly is arranged on the base and includes driving piece and transmission block, the driving piece is connected with the transmission block, the transmission block is connected with the first end of the second lifting arm, and the transmission block and the base are provided with damping piece, so that when the transmission block slides relative to the base, the damping piece generates damping force.

[0008] Therefore, by arranging the damping member between the transmission block and the base, the damping member generates damping force when the transmission block drives the first end of the second lifting arm to slide relative to the base, so that the structure is simple, the structural components are few, the occupied space is small, the arrangement and assembly are easy, the stability and smoothness of the sliding of the transmission block are improved, the smoothness and lifting precision of the lifting process of the lifting device are improved, and the large stroke and small stroke requirements of the lifting device are met.

[0009] In some examples of the utility model, the damping member includes a damping rack and a damping gear, the damping gear is arranged on the transmission block, the first end of the second lifting arm is slidable on the base in a second direction, the damping rack is arranged on the base and extends in the second direction, wherein the first direction and the second direction are perpendicular to each other.

[0010] In some examples of the utility model, two first guide plates are arranged on the base in a relative arrangement, both the first guide plates are provided with guide sliding grooves, and the first end of the second lifting arm is located between the two first guide plates and respectively slidably extends into the two guide sliding grooves.

[0011] In some examples of the utility model, the lifting device further includes a connecting block, the first end of the first lifting arm is provided with a sliding column, both ends of the sliding column are respectively slidably extended into the two first guide plates, a sliding groove extending in the second direction is arranged on the base, and the transmission block and the connecting block are slidably arranged in the sliding groove, one end of the connecting block is connected with the transmission block, and the other end is connected with the sliding column.

[0012] In some examples of the utility model, the driving member is provided with a screw rod member, the transmission block is a transmission nut, and the screw rod member is in threaded transmission cooperation with the transmission nut.

[0013] In some examples of the utility model, the lifting device further includes a mounting plate, the second end of the second lifting arm in the first direction is rotatably connected with the mounting plate, and the second end of the first lifting arm in the first direction is slidably connected with the mounting plate, and the mounting plate is suitable for mounting the loudspeaker body.

[0014] In some examples of the utility model, the lifting device further includes a tension spring, the tension spring extends in the first direction, and both ends of the tension spring are respectively connected with the base and the mounting plate.

[0015] In some examples of the utility model, the lifting device further includes a shell, the base is arranged at the bottom of the shell, the shell cover is arranged outside the cross lifting arm, the inner wall of the shell is provided with a guide groove extending in the first direction, the edge of the mounting plate is provided with a plurality of circumferentially spaced guide blocks, the guide groove is a plurality of and circumferentially spaced in the inner wall of the shell, a plurality of the guide blocks and a plurality of the guide groove are one-to-one guided cooperation.

[0016] The vehicle-mounted loudspeaker according to the utility model embodiment comprises a loudspeaker body and the device described above, and the loudspeaker body is arranged on the lifting device.

[0017] The vehicle according to the utility model embodiment comprises the vehicle-mounted loudspeaker described above.

[0018] The additional aspects and advantages of the utility model will be partly given in the following description, partly will become obvious from the following description, or be understood by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0019] The above and / or additional aspects and advantages of the utility model will become apparent and more readily appreciated from the following description of the embodiments, with reference to the following drawings, in which:

[0020] Figure 1 It is the schematic diagram of vehicle-mounted loudspeaker according to the utility model embodiment;

[0021] Figure 2 It is the schematic diagram of vehicle-mounted loudspeaker according to the utility model embodiment;

[0022] Figure 3 It is the explosion diagram of vehicle-mounted loudspeaker according to the utility model embodiment;

[0023] Figure 4 It is the installation schematic diagram of lifting device according to the utility model embodiment;

[0024] Figure 5 It is the installation schematic diagram of lifting device according to the utility model embodiment;

[0025] Figure 6 It is the installation schematic diagram of lifting device according to the utility model embodiment;

[0026] Figure 7 It is the installation schematic diagram of lifting device according to the utility model embodiment;

[0027] Figure 8 It is the installation schematic diagram of lifting device according to the utility model embodiment;

[0028] Figure 9is a mounting schematic view of the vehicle-mounted speaker according to the embodiment of the present application;

[0029] Figure 10 is a mounting schematic view of the vehicle-mounted speaker according to the embodiment of the present application;

[0030] Figure 11 is a mounting schematic view of the vehicle-mounted speaker according to the embodiment of the present application;

[0031] Figure 12 is a mounting schematic view of the vehicle-mounted speaker according to the embodiment of the present application;

[0032] Figure 13 is a mounting schematic view of the vehicle-mounted speaker according to the embodiment of the present application;

[0033] Figure 14 is a sectional view of the vehicle-mounted speaker according to the embodiment of the present application;

[0034] Figure 15 is a partial schematic view of the lifting device according to the embodiment of the present application;

[0035] Figure 16 is a schematic view of the mounting plate according to the embodiment of the present application;

[0036] Figure 17 is a partial schematic view of the lifting device according to the embodiment of the present application;

[0037] Figure 18 is a partial schematic view of the lifting device according to the embodiment of the present application;

[0038] Figure 19 is a partial schematic view of the lifting device according to the embodiment of the present application;

[0039] Figure 20 is a partial schematic view of the lifting device according to the embodiment of the present application;

[0040] Figure 21 is a partial sectional view of the lifting device according to the embodiment of the present application;

[0041] Figure 22 is a partial schematic view of the lifting device according to the embodiment of the present application.

[0042] Reference signs:

[0043] 100, lifting device; 200, vehicle-mounted speaker;

[0044] 10, base; 101, first guide plate; 102, guide sliding groove; 103, sliding groove;

[0045] 20, cross lifting arm; 201, first lifting arm; 202, second lifting arm; 203, sliding column;

[0046] 30, driving assembly; 301, driving piece; 3011, screw piece; 302, transmission block;

[0047] 40, damping piece; 401, damping rack; 402, damping gear;

[0048] 50, connecting block;

[0049] 60, mounting plate; 601, guide block;

[0050] 70, tension spring;

[0051] 80, shell; 801, guide groove; 8011, boss; 802, decorative cover;

[0052] 90, loudspeaker body. DETAILED DESCRIPTION

[0053] The embodiments of the present application are described in detail below, and the embodiments described with reference to the accompanying drawings are exemplary, and the embodiments of the present application are described in detail below.

[0054] The embodiments of the present application are described in detail below, and the embodiments described with reference to the accompanying drawings are exemplary, and the embodiments of the present application are described in detail below. Figures 1-22 The lifting device 100 according to the embodiments of the present application is described below, and the lifting device 100 can be applied to the vehicle-mounted loudspeaker 200, and the vehicle-mounted loudspeaker 200 can be applied to the vehicle. Among them, the annotations about the first direction and the second direction are in the Figure 14 .

[0055] In combination with Figures 1-22 shown, the lifting device 100 according to the embodiments of the present application can mainly include: a base 10, a cross lifting arm 20 and a driving assembly 30. Among them, the base 10 as the basic part of the lifting device 100, not only can provide support for the structure of the lifting device 100, and evenly distribute the pressure applied by each structure on the base 10 to the placement surface of the lifting device 100, to ensure the overall stability of the structure of the lifting device 100, but also can provide fixing points and mounting positions, facilitate the installation and placement of the lifting device 100, facilitate the installation and fixation of other components in the lifting device 100, help to ensure the stability of the lifting device 100 in the running process.

[0056] Further, the cross lifting arm 20 comprises a first lifting arm 201 and a second lifting arm 202 arranged in cross, the first end of the first lifting arm 201 in the first direction is rotatably arranged on the base 10, and the first end of the second lifting arm 202 in the first direction is slidably arranged on the base 10, the cross lifting arm 20 is suitable for mounting the speaker body 90, and the first end of the second lifting arm 202 is selectively close to or away from the first end of the first lifting arm 201, so as to realize the lifting of the speaker body 90. Specifically, the first end of the first lifting arm 201 in the first direction is rotatably arranged on the base 10, and the first end of the second lifting arm 202 in the first direction is slidably arranged on the base 10, that is, the connecting point of the first lifting arm 201 and the base 10 is a fixed rotation point, and the connecting point of the second lifting arm 202 and the base 10 is a sliding end. By selectively controlling the first end of the second lifting arm 202 to be close to or away from the first end of the first lifting arm 201, the cross angle between the first lifting arm 201 and the second lifting arm 202 can be changed, so that the vertical height of the first lifting arm 201 and the second lifting arm 202 in the first direction relative to the base 10 can be changed, that is, the height of the cross lifting arm 20 in the first direction can be changed. By arranging the speaker body 90 at the end of the cross lifting arm 20 away from the base 10 in the first direction, and driving the first end of the second lifting arm 202 in the first direction to slide, the distance between the first end of the second lifting arm 202 and the first end of the first lifting arm 201 in the second direction can be changed, so as to realize the lifting of the speaker body 90.

[0057] Further, the driving assembly 30 is arranged on the base 10 and comprises a driving piece 301 and a transmission block 302, the driving piece 301 is in transmission connection with the transmission block 302, the transmission block 302 is connected with the first end of the second lifting arm 202, and the damping piece 40 is arranged between the transmission block 302 and the base 10, so that the damping piece 40 generates damping force when the transmission block 302 slides relative to the base 10. Specifically, the driving piece 301 is in transmission connection with the transmission block 302, the transmission block 302 is connected with the first end of the second lifting arm 202, and the driving piece 301 is used to provide power to control the sliding and static of the transmission block 302. When the driving piece 301 drives the transmission block 302 to slide and displace, the transmission block 302 can transmit the power from the driving piece 301 to the second lifting arm 202 connected therewith, so as to drive the first end of the second lifting arm 202 to be close to or away from the first end of the first lifting arm 201, thereby realizing the lifting function of the lifting device 100.

[0058] Further, the damping member 40 is arranged between the transmission block 302 and the base 10, so that the damping member 40 generates damping force when the transmission block 302 slides relative to the base 10, thereby avoiding problems such as sliding disorder or lifting disorder caused by uneven driving speed or sudden change of speed of the driving member 301, and making the lifting speed of the lifting device 100 more uniform and stable, improving the smoothness and stability of the lifting device 100 during operation, improving the lifting precision of the lifting device 100, and preventing unnecessary sliding of the transmission block 302 relative to the base 10 caused by body vibration or inertia of the transmission block 302, thereby improving the stability and reliability of the lifting device 100.

[0059] Further, the stroke of the driving assembly 30 is related to factors such as installation space, size of related components, and motor speed, and the driving assembly 30 can be replaced with components to meet the large-stroke and small-stroke requirements of the lifting device 100 according to different stroke requirements and installation space. The driving assembly 30 in the utility model has a simple structure and occupies a small space, and the assembly process is simple and easy to operate when the components are replaced.

[0060] Therefore, the damping member 40 is arranged between the transmission block 302 and the base 10, so that the damping member 40 generates damping force when the transmission block 302 drives the first end of the second lifting arm 202 to slide relative to the base 10, thereby improving the stability and smoothness of the sliding of the transmission block 302, improving the smoothness and lifting precision of the lifting device 100 during lifting, and meeting the large-stroke and small-stroke requirements of the lifting device 100.

[0061] In some embodiments of the utility model, the transmission block 302 is provided with arc-shaped features at the contact positions with the base 10 on both sides, and linear contact is formed between the transmission block 302 and the base 10 during sliding, thereby having good straight-line guiding property.

[0062] In combination with Figure 11 , Figure 12 , Figure 20 and Figure 22As shown, the damping member 40 comprises a damping rack 401 and a damping gear 402, the damping gear 402 is arranged on the transmission block 302, the first end of the second lifting arm 202 is slidable on the base 10 along a second direction, the damping rack 401 is arranged on the base 10 and extends in the second direction, wherein the first direction and the second direction are perpendicular to each other. Specifically, the tooth shape of the damping rack 401 and the damping gear 402 needs to match each other, so that the damping rack 401 and the damping gear 402 can be smoothly and tightly engaged together. By arranging the damping gear 402 on the transmission block 302, the damping rack 401 is arranged on the base 10 and extends in the second direction, and the transmission block 302 is connected with the first end of the second lifting arm 202, so that when the driving assembly 30 is started, the driving member 301 transmits power to the transmission block 302, the transmission block 302 drives the damping gear 402 to rotate relative to the damping rack 401 on the base 10 along the second direction, and at the same time the transmission block 302 also drives the first end of the second lifting arm 202 to slide linearly on the base 10 along the second direction. The rotation and the linear motion interact with each other.

[0063] Further, by controlling the driving force size and direction of the driving member 301, the rotation speed and rotation direction of the damping gear 402 can be adjusted, and the sliding speed and sliding direction of the first end of the second lifting arm 202 can be adjusted.

[0064] Further, the arrangement of the damping rack 401 and the damping gear 402 can improve the stability and smoothness of the sliding of the first end of the second lifting arm 202, can make the lifting speed of the lifting device 100 more uniform and stable, and can improve the stability of the entire lifting device 100 during operation. In addition, it can also prevent the transmission block 302 from vibrating or sliding relative to the base 10 due to body vibration or inertia, can suppress the generation of resonance phenomenon, and can improve the stability and reliability of the lifting device 100.

[0065] In combination with Figure 3 , Figure 6 and Figure 8 As shown, the base 10 is provided with two oppositely arranged first guide plates 101, each of the two first guide plates 101 is provided with a guide sliding groove 102, and the first end of the second lifting arm 202 is located between the two first guide plates 101 and respectively slidably extends into the two guide sliding grooves 102.

[0066] Specifically, the first guide plate 101 is a basic component for opening the guide sliding groove 102, which can prevent the guide sliding groove 102 from deforming or breaking, and ensure the stability and reliability of the opening of the guide sliding groove 102.

[0067] Further, the guide sliding grooves 102 are formed on the two first guide plates 101, and the two guide sliding grooves 102 correspond in structure, size and position, so that the first end of the second lifting arm 202 is located between the two first guide plates 101 and respectively slidably extends into the two guide sliding grooves 102, so as to provide a fixed track or path, so that the first end of the second lifting arm 202 can accurately and smoothly slide along the guide sliding grooves 102 according to the predetermined path, and the guide sliding grooves 102 can also provide the freedom of the first end of the second lifting arm 202, so as to avoid unnecessary displacement or deviation and ensure the accuracy of the sliding of the first end of the second lifting arm 202. In addition, the guide sliding grooves 102 can also provide necessary support for the second lifting arm 202 to prevent the first end of the second lifting arm 202 from deviating from the preset track.

[0068] In combination with Figure 5 , Figure 6 , Figure 11 and Figure 14 , the lifting device 100 further comprises a connecting block 50, the first end of the first lifting arm 201 is provided with a sliding column 203, both ends of the sliding column 203 respectively slidably extend into the two first guide plates 101, and the base 10 is provided with a second direction extending sliding groove 103, the transmission block 302 and the connecting block 50 are slidably arranged in the sliding groove 103, one end of the connecting block 50 is connected with the transmission block 302, and the other end is connected with the sliding column 203.

[0069] Specifically, the first end of the first lifting arm 201 is provided with a sliding column 203, both ends of the sliding column 203 respectively slidably extend into the two first guide plates 101, so as to improve the stability of the sliding of the first end of the first lifting arm 201 and prevent the first end of the first lifting arm 201 from deviating from the guide sliding grooves 102 of the two first guide plates 101.

[0070] Further, one end of the connecting block 50 is connected with the transmission block 302, and the other end is connected with the sliding column 203, so that the connecting block 50 can realize the connection between the transmission block 302 and the sliding column 203, the power transmission between the transmission block 302 and the sliding column 203, the sliding of the first end of the first lifting arm 201, and the normal lifting function of the lifting device 100.

[0071] Further, the base 10 is provided with a sliding groove 103 extending in a second direction, and the transmission block 302 and the connecting block 50 are slidably arranged in the sliding groove 103, so that the transmission block 302 and the connecting block 50 can be provided with installation space and sliding path, and the sliding freedom of the transmission block 302 and the connecting block 50 can be limited, so that the transmission block 302 and the connecting block 50 can be prevented from deviating when sliding, and the stability and smoothness of the connecting block 50 when driving the first end of the first lifting arm 201 to slide can be improved.

[0072] In combination with Figure 3 , Figure 12 , Figure 14 and Figure 20 , the driving member 301 is provided with a screw member 3011, and the transmission block 302 is a transmission nut, and the screw member 3011 and the transmission nut are threadedly and drivingly matched. Specifically, the screw member 3011 is provided with threads, and the inner ring of the transmission nut is provided with internal threads, and the threads on the screw member 3011 and the internal threads of the transmission nut are accurately matched and cooperated. Further, when the screw member 3011 rotates, the contact and cooperation between the threads push the transmission nut to move linearly along the axial direction of the screw member 3011, and the moving direction of the transmission nut can be changed by changing the rotating direction of the screw member 3011, so that the transmission block 302 can be driven to move linearly by the screw member 3011, so that the normal lifting function of the lifting device 100 can be ensured, and the thread cooperation between the screw member 3011 and the transmission nut can provide accurate guiding effect, so that the accuracy of the moving path of the transmission block 302 can be improved, and the lifting accuracy and efficiency of the lifting device 100 can be improved.

[0073] Further, the effective distance of the movable transmission nut relative to the screw member 3011 is related to the length, pitch, support structure size, installation space and other factors of the screw member 3011, and the appropriate screw member 3011 can be selected or replaced according to the stroke requirement, so as to meet the large stroke and small stroke requirements of the lifting device 100.

[0074] In combination with Figure 3 , Figure 8 , Figure 9 and Figure 14As shown, the lifting device 100 further comprises a mounting plate 60, the second end of the second lifting arm 202 in the first direction is rotatably connected with the mounting plate 60, and the second end of the first lifting arm 201 in the first direction is slidably connected with the mounting plate 60, and the mounting plate 60 is suitable for mounting the speaker body 90. Specifically, the side of the cross lifting arm 20 away from the base 10 is provided with the mounting plate 60 for mounting the speaker body 90, so that not only can the mounting plate 60 provide a mounting position and a support structure for the speaker body 90 to ensure the stability of the structure of the speaker body 90 and reduce the mounting difficulty of the speaker body 90, but also can help to ensure the parallelism of the mounting of the speaker body 90 relative to the base 10 and the perpendicularity during the lifting movement, so as to improve the lifting precision of the lifting device 100 and improve the quality of the lifting device 100.

[0075] Further, the second end of the second lifting arm 202 in the first direction is rotatably connected with the mounting plate 60, and the second end of the first lifting arm 201 in the first direction is slidably connected with the mounting plate 60, so that the synchronous movement of the first lifting arm 201 and the second lifting arm 202 can be realized, and the situation that only one end of the second end of the first lifting arm 201 and the second end of the second lifting arm 202 is raised or the lifting heights are inconsistent can be prevented, which can help to maintain the parallelism of the mounting plate 60 and prevent the mounting plate 60 from tilting, so as to ensure the good lifting function of the lifting device 100.

[0076] It should be noted that the sliding structure between the mounting plate 60 and the second end of the second lifting arm 202 is consistent with the sliding structure between the first end of the second lifting arm 202 and the base 10, so as to accurately ensure the synchronous movement and the consistency of the lifting height of the first lifting arm 201 and the second lifting arm 202.

[0077] As shown in Figure 3 , Figure 8 and Figure 9 , the lifting device 100 further comprises a tension spring 70, the tension spring 70 extends in the first direction, and the two ends of the tension spring 70 are respectively connected with the base 10 and the mounting plate 60. Specifically, during the lifting process, in order to avoid the shaking of some moving mechanism components, a force in the opposite direction is usually given in the moving direction to increase the load, and when each mechanism component is in a certain load working condition, the problem that each mechanism component is not prone to loosening or shaking can be solved. Therefore, two tension springs 70 are symmetrically arranged in the first direction in the lifting device 100, and the two ends of the tension spring 70 are respectively connected with the base 10 and the mounting plate 60, so that the tension of the tension spring 70 during the lifting process is the load, which can improve the stability of the lifting process; during the descending process, the tension spring 70 can provide a restoring force, so that the speaker body 90 can quickly return to the initial position, which is convenient for the next operation. Therefore, the arrangement of the tension spring 70 can help to improve the stability of the lifting or descending movement of the lifting device 100, and can optimize the structural design and lifting performance of the lifting device 100.

[0078] Combination Figure 3 , Figure 10 , Figure 13 and Figure 14 As shown, the lifting device 100 also includes a housing 80, a base 10 is disposed at the bottom of the housing 80, the housing 80 covers the outside of the cross lifting arm 20, the inner wall of the housing 80 is provided with a guide groove 801 extending in a first direction, the edge of the mounting plate 60 is provided with a plurality of circumferentially spaced guide blocks 601, there are a plurality of guide grooves 801 and they are circumferentially spaced on the inner wall of the housing 80, and the plurality of guide blocks 601 and the plurality of guide grooves 801 are guided and cooperated one by one.

[0079] Specifically, the cooperation between the guide block 601 and the guide groove 801 is mainly used for guiding and stabilizing the guide block 601 during its up-and-down sliding process. This allows the guide block 601 to slide smoothly and accurately along a predetermined path under the limiting and guiding effect of the guide groove 801, preventing the guide block 601 from deviating or shaking during the sliding process, and improving the stability of the lifting device 100 during the lifting process.

[0080] Furthermore, when the guide block 601 rises to the top of the guide groove 801, the top of the guide groove 801 acts as a limit to restrict the maximum rising distance of the guide block 601 and the speaker body 90, preventing the speaker body 90 from rising excessively. This avoids unnecessary space occupation and improves the stability of the speaker body 90 when it reaches its maximum rising height. When the guide block 601 descends to the bottom of the guide groove 801, the lower side of the guide block 601 contacts the base 10 to achieve a limit. At this time, the speaker body 90 is retracted into the lifting device 100, which also prevents damage to the internal components of the lifting device 100 caused by squeezing or impact.

[0081] Furthermore, three guide blocks 601 are provided on the circumferential edge of the mounting plate 60, and the three guide blocks 601 are distributed in a triangular pattern to ensure the stability and reliability of the mounting plate 60 structure and improve the smoothness and reliability of the lifting process of the lifting device 100. The number and size of the guide blocks 601 can be adjusted according to factors such as the size of the mounting plate 60 and the lifting height, and the number of corresponding guide grooves 801 is the same as the number of guide blocks 601.

[0082] Combination Figure 14 , Figure 15 , Figure 17 and Figure 18 As shown, in some embodiments of this utility model, four smaller bosses 8011 are provided in the guide groove 801 corresponding to the guide block 601, so that the guide block 601 and the guide groove 801 are in linear contact during the sliding process, thereby improving the stability during the sliding process.

[0083] Combining Figure 1 , Figure 2 , Figure 13 and Figure 14 As shown in the figure, the vehicle-mounted loudspeaker 200 according to the utility model can mainly include: a loudspeaker body 90 and the lifting device 100 described above. Among them, the loudspeaker body 90 can convert the electrical signal from the audio source such as navigation system, smart phone into sound signal, provide for the passengers in the car, help to improve the functional diversity of the vehicle, improve the driving experience of the vehicle.

[0084] Further, the loudspeaker body 90 is arranged on the lifting device 100, since the structure of the lifting device 100 described above is more simple, and the lifting process is more stable, the lifting device 100 is used for loading the loudspeaker body 90, the loudspeaker with lifting structure can be set, which not only can ensure the stability of the lifting process, but also can adjust the stroke according to the specific loudspeaker structure, to ensure that the loudspeaker body 90 can be completely extended to better play audio, also can ensure that the loudspeaker can be completely retracted to protect the idle loudspeaker body 90, and also can improve the space utilization.

[0085] Combining Figures 4-14 As shown in the figure, the assembly process of each structure of the vehicle-mounted loudspeaker 200 according to the utility model includes the following steps:

[0086] Cross lifting arm 20 assembly; specifically, the middle part of the first lifting arm 201 and the second lifting arm 202 is provided with a mounting hole, after the mounting holes of the two components are aligned, the metal shaft is inserted into the aligned mounting holes to fix the first lifting arm 201 and the second lifting arm 202. After installation, the first lifting arm 201 and the second lifting arm 202 can rotate around the mounting hole in the middle part.

[0087] Connecting block 50 installation; the connecting block 50 is clamped on the sliding column 203 of the second lifting arm 202, and after clamping, the connecting block 50 can rotate around the sliding column 203.

[0088] Cross lifting arm 20 installation; cross lifting arm 20 is installed on base 10, specifically, the first end of the first direction of the first lifting arm 201 is connected and installed with the mounting part corresponding to the base 10, and the two ends of the sliding column 203 of the first end of the second lifting arm 202 are installed in the guide sliding groove 102 of the two first guide plates 101. After installation, the first end of the first direction of the first lifting arm 201 is rotatably arranged on the base 10, and the first end of the first direction of the second lifting arm 202 is slidably arranged on the base 10. By driving the sliding column 203 of the first end of the second lifting arm 202 to slide, the height change of the whole cross lifting arm 20 in the first direction can be realized. At the same time, the lower end of the connecting block 50 is inserted into the sliding groove 103 of the base 10.

[0089] Mounting plate 60 installation; the mounting plate 60 is connected and fixed with the second end of the first lifting arm 201 and the second lifting arm 202, specifically, the second end of the first direction of the second lifting arm 202 is connected and installed with the mounting part corresponding to the mounting plate 60, and the second end of the first direction of the first lifting arm 201 is installed in the guide sliding groove on the mounting plate 60. After installation, the second end of the first direction of the second lifting arm 202 is rotatably connected with the mounting plate 60, and the second end of the first direction of the first lifting arm 201 is slidably connected with the mounting plate 60. The second end of the first lifting arm 201 and the second lifting arm 202 cooperates with the movement state of the first end thereof. By driving the sliding column 203 of the first end of the second lifting arm 202 to slide, the rotation of the first end of the first lifting arm 201 and the second end of the second lifting arm 202 and the sliding of the second end of the first lifting arm 201 can be driven, and the common action of the first lifting arm 201 and the second lifting arm 202 realizes the height change of the whole cross lifting arm 20 in the first direction.

[0090] Tension spring 70 installation; the pull hook on the tension spring 70 is respectively installed on the base 10 and the mounting plate 60. It should be noted that the tension spring 70 needs to be symmetrically installed with two to ensure the stability of the structure of the lifting device 100.

[0091] Loudspeaker body 90 installation; the loudspeaker body 90 is installed on the mounting plate 60, specifically; the installation of the loudspeaker body 90 can be in various forms such as welding, clamping, bonding, etc.

[0092] Housing 80 installation; the housing 80 is installed from top to bottom in the first direction, so that the lower end of the housing 80 in the first direction corresponds to and fits the base 10. When installing, the guide block 601 of the mounting plate 60 needs to be correspondingly matched with the guide groove 801 of the housing 80, so that the guide block 601 moves in the guide groove 801.

[0093] The damping member 40 is mounted with the transmission block 302; the damping member 40 is placed between the transmission block 302 and the base 10, specifically, the damping gear 402 of the damping member 40 is placed in correspondence with the damping rack 401 of the base 10, and the meshing gap between the damping gear 402 and the damping rack 401 is adjusted, wherein the damping member 40 and the transmission block 302 can be fixed by screwing.

[0094] The screw rod member 3011 is installed; the screw rod member 3011 needs to pass through the corresponding reserved hole on the base 10, extend into the base 10 and be threadedly mounted with the transmission nut of the transmission block 302, the screw rod member 3011 is stopped in cooperation with the non-extending side of the base 10 in the second direction, and then a motor matched with the screw rod member 3011 is fixed on the shell 80 by using a screw or other fasteners.

[0095] Finally, the installation of the decorative cover 802 and other decorative components can be performed, and the overall assembly of the vehicle-mounted loudspeaker 200 containing the lifting device 100 is completed.

[0096] In this way, the motor drives the screw rod member 3011 to rotate, the contact cooperation between the threads pushes the transmission nut to move linearly along the axial direction of the screw rod member 3011, and then the first end of the second lifting arm 202 in the first direction can be driven to slide, the angle change between the first lifting arm 201 and the second lifting arm 202 is realized, and thus the lifting of the loudspeaker body 90 on the mounting plate 60 can be realized. In addition, the lifting direction of the lifting device 100 can be changed by changing the rotating direction of the screw rod member 3011.

[0097] The vehicle according to the present application can mainly include the vehicle-mounted loudspeaker 200 described above. Specifically, since the structure of the vehicle-mounted loudspeaker 200 is simpler and easier to realize, and has good working performance, the application of the vehicle-mounted loudspeaker 200 to the vehicle can improve the functional diversity of the vehicle and improve the driving experience and comfort of the vehicle.

[0098] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0099] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example.

[0100] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A lifting device, characterized in that The utility model relates to a loudspeaker lifting device, which comprises: a base (10); a cross lifting arm (20) comprising a first lifting arm (201) and a second lifting arm (202) arranged in cross, the first end of the first lifting arm (201) in a first direction being rotatably arranged on the base (10), the first end of the second lifting arm (202) in a first direction being slidably arranged on the base (10), the cross lifting arm (20) being adapted to mount a loudspeaker body (90), the first end of the second lifting arm (202) being selectively closer to or farther away from the first end of the first lifting arm (201) to realize the lifting of the loudspeaker body (90); a driving assembly (30) arranged on the base (10) and comprising a driving member (301) and a transmission block (302), the driving member (301) being in transmission connection with the transmission block (302), the transmission block (302) being connected with the first end of the second lifting arm (202), a damping member (40) being arranged between the transmission block (302) and the base (10) to generate a damping force when the transmission block (302) slides relative to the base (10).

2. The lift device of claim 1, wherein, The damping member (40) comprises a damping rack (401) and a damping gear (402), the damping gear (402) being arranged on the transmission block (302), the first end of the second lifting arm (202) being slidable on the base (10) in a second direction, the damping rack (401) being arranged on the base (10) and extending in the second direction, wherein the first direction and the second direction are perpendicular to each other.

3. The lift device of claim 2, wherein, The base (10) is provided with two first guide plates (101) arranged oppositely, each of the two first guide plates (101) being provided with a guide sliding groove (102), the first end of the second lifting arm (202) being located between the two first guide plates (101) and slidably extending into the two guide sliding grooves (102) respectively.

4. The lift device of claim 3, wherein, The utility model further comprises a connecting block (50), the first end of the first lifting arm (201) being provided with a sliding column (203), both ends of the sliding column (203) slidably extending into the two first guide plates (101) respectively, the base (10) being provided with a sliding groove (103) extending in the second direction, the transmission block (302) and the connecting block (50) both slidably arranged in the sliding groove (103), one end of the connecting block (50) being connected with the transmission block (302) and the other end being connected with the sliding column (203).

5. The lift device of claim 1, wherein, The driving member (301) is provided with a screw rod (3011), the transmission block (302) being a transmission nut, the screw rod (3011) being in threaded transmission cooperation with the transmission nut.

6. The lift device of claim 1, wherein, Further comprising a mounting plate (60), a second end of the second lifting arm (202) in the first direction is rotatably connected with the mounting plate (60), a second end of the first lifting arm (201) in the first direction is slidably connected with the mounting plate (60), and the mounting plate (60) is adapted to mount the speaker body (90).

7. The lift device of claim 6, wherein, Further comprising a tension spring (70), the tension spring (70) extends in the first direction, and two ends of the tension spring (70) are respectively connected with the base (10) and the mounting plate (60).

8. The lift device of claim 7, wherein, Further comprising a shell (80), the base (10) is arranged at a bottom of the shell (80), the shell (80) covers an outer side of the cross lifting arm (20), an inner wall of the shell (80) is provided with a guide groove (801) extending in the first direction, an edge of the mounting plate (60) is provided with a plurality of guide blocks (601) arranged in a circumferential direction at intervals, and the guide groove (801) is a plurality of and arranged in the circumferential direction at intervals on the inner wall of the shell (80), and the plurality of guide blocks (601) are guided and matched with the plurality of guide grooves (801) one by one.

9. A car speaker, characterized by, The loudspeaker device (100) according to any one of claims 1-8, wherein the speaker body (90) is arranged in the loudspeaker device (100). The vehicle-mounted loudspeaker according to claim 9. The vehicle-mounted loudspeaker according to claim 9.

10. A vehicle characterized by comprising: ​

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