Electric sliding mechanism, dresser and vehicle

Abstract

The electric sliding mechanism comprises a base, a lead screw, a sliding block, a driving assembly and a limiting switch, the lead screw is rotatably arranged on the base, the driving assembly is in transmission connection with the lead screw, and the sliding block is arranged on the periphery of the lead screw in a sleeving mode and used for being fixedly connected with a transmission object; the limiting switches are fixedly arranged on the base and at least comprise the first limiting switch and the second limiting switch, and when the transmission object moves to the limiting positions at the two ends in the length direction of the lead screw, the transmission object is limited by the first limiting switch and the second limiting switch in an abutting mode. The lead screw is driven by the driving assembly so as to drive the sliding block and the transmission object to move in the length direction of the lead screw, stretching and retracting actions of the transmission object are achieved, and meanwhile the first limiting switch and the second limiting switch are arranged so that the transmission object can be limited at two limiting positions. And the transmission object is prevented from slipping off from the screw rod and losing efficacy while automatic movement of the transmission object is met.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to an electric sliding mechanism, a dressing table and a vehicle. Background Art

[0002] With the development of the automobile industry, vehicles are continuously expanding humanized configurations on the basis of improving performance to enhance the riding experience of passengers. Among the extended configurations of vehicles, the co-pilot's item support and storage configurations are receiving more and more attention. Since the co-pilot does not need to operate the vehicle, the co-pilot will have item support needs such as eating and watching TV series during the trip, especially modern female passengers, who also need to dress up when going out, so there are also rich needs for item storage, etc., and most vehicles currently only have a glove box at the co-pilot position, which is difficult to meet the item support needs and refined storage needs such as cosmetics, and some vehicles are equipped with pull-out or flip-up tables for co-pilot passengers to use, but the pull-out and flip-up operations are cumbersome, and the passengers need to find the right point of force to smoothly unfold the table, the degree of intelligence is low, and it is difficult to open the table when the passenger holds items, affecting the riding experience.

[0003] Therefore, how to meet the needs of intelligent item support, placement and storage at the co-pilot position is a technical problem that needs to be urgently solved by technical personnel in this field. Utility Model Content

[0004] The utility model provides an electric sliding mechanism, a dressing table and a vehicle to meet the requirements of intelligent article support, placement and storage at the co-pilot position.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] In a first aspect, the utility model provides an electric sliding mechanism, including a base, a screw rod, a slider, a driving assembly and a limit switch, wherein the screw rod is rotatably arranged on the base, the driving assembly is connected to the screw rod in a transmission manner to drive the screw rod to rotate, the slider is sleeved on the outer periphery of the screw rod and meshed with the screw rod, and the slider is used to be fixedly connected to a transmission object to drive the transmission object to move along the length direction of the screw rod;

[0007] The limit switch is fixedly arranged on the base to limit the limit position of the transmission object. The limit switch includes at least a first limit switch and a second limit switch. When the transmission object moves to the limit positions at both ends along the length direction of the screw rod, it is respectively abutted and limited by the first limit switch and the second limit switch.

[0008] Optionally, in the above-mentioned electric sliding mechanism, the driving assembly includes a driving motor, and the driving motor drives the rotating shaft to rotate through meshing transmission gears and involute gears, and the rotating shaft drives the lead screw to rotate.

[0009] Optionally, in the above-mentioned electric sliding mechanism, the drive motor is connected to the vehicle system to receive a touch screen or voice type input signal, the input signal includes at least a start signal, a retraction signal and a stop signal, and the drive motor drives the screw rod to rotate in a first direction after receiving the start signal. After receiving the retraction signal, the drive motor drives the screw rod to rotate in a second direction, the first direction is opposite to the second direction, and the drive motor stops driving after receiving the stop signal.

[0010] Optionally, in the above-mentioned electric sliding mechanism, the rotating shaft is connected to the screw transmission through a coupling, the coupling includes a first-level coupling, a second-level coupling and a third-level coupling, the end of the rotating shaft is a groove structure and is clamped and locked with the first-level coupling, the end of the screw is inserted into and locks the third-level coupling, and the second-level coupling is used to clamp and synchronize the first-level coupling and the third-level coupling.

[0011] Optionally, the above-mentioned electric sliding mechanism further includes a guide shaft arranged on the base, and a guide block slidably sleeved on the outer periphery of the guide shaft, the guide shaft is arranged parallel to the screw rod, and the guide block is used to be fixedly connected to the transmission object.

[0012] Optionally, in the above-mentioned electric sliding mechanism, two groups of guide shafts are provided, and the two groups of guide shafts are symmetrically arranged about the screw rod.

[0013] Optionally, in the above-mentioned electric sliding mechanism, a first support seat and a second support seat are fixed on the base at intervals, and limit bearings are embedded in the first support seat and the second support seat, and the screw rod is arranged through the inner ring of the limit bearing.

[0014] Optionally, the electric sliding mechanism further includes a support base, which is L-shaped and fixedly connected to the sliding block.

[0015] In a second aspect, the utility model provides a dressing table, comprising the electric sliding mechanism provided by any of the above-mentioned embodiments, and also comprising a makeup box, the bottom of which is fixedly connected to the slider so as to move along the length direction of the screw rod with the slider under the drive of the driving assembly, and the makeup box is completely embedded in the body when it moves along the length direction of the screw rod to a first extreme position, and at least partially extends out of the body when it moves along the length direction of the screw rod to a second extreme position.

[0016] In a third aspect, the utility model provides a vehicle, in front of the co-pilot seat, provided with a dressing table provided in the above embodiment.

[0017] It can be seen from the above technical scheme that the electric sliding mechanism provided by the utility model drives the screw rod to rotate through the driving component to drive the slider engaged with the screw rod to move in two directions along the length direction of the screw rod, and the slider is fixedly arranged with the transmission object to drive the movement of the transmission object. Taking the transmission object as the table board arranged in front of the co-pilot as an example, the table board can realize the movement of automatically retracting into the vehicle body and extending out of the vehicle body, and the passenger can also extend and retract the table board when holding items, thereby meeting the support, placement and storage requirements of the items; at the same time, a first limit switch and a second limit switch are set to limit the two extreme positions of the transmission object when it moves along the length direction of the screw rod to prevent the transmission object from slipping off the screw rod. Similarly, taking the transmission object as the table board arranged in front of the co-pilot as an example, the first limit switch and the second limit switch can limit the movement of the table board to being fully embedded in the vehicle body and fully extending out of the vehicle body bracket, so as to ensure that the table board is located in a safe operating space while automatically driving the movement of the table board. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the prior art description are briefly introduced below. Obviously, the drawings described below are only some examples or embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without creative work, and the utility model can also be applied to other similar scenarios based on the provided drawings. Unless it is obvious from the language environment or otherwise explained, the same reference numerals in the figures represent the same structure or operation.

[0019] Figure 1 It is a schematic diagram of the electric sliding mechanism provided by the embodiment of the utility model;

[0020] Figure 2 yes Figure 1 Back view of

[0021] Figure 3 This is a detailed view of the structure of the drive motor;

[0022] Figure 4 It is a schematic diagram of the transmission connection structure between the drive motor and the lead screw;

[0023] Figure 5 It is a schematic diagram of the structure of the first support seat and the second support seat;

[0024] Figure 6 It is a schematic diagram of the limit bearing structure;

[0025] Figure 7 Set up a structural diagram for the support base;

[0026] Figure 8is a schematic diagram of the structure of the first limit switch;

[0027] Fig. 9 A schematic diagram of the structure of a dressing table provided by an embodiment of the utility model;

[0028] Among them, 10-base; 110-guide shaft; 120-guide block; 130-first support seat; 140-second support seat; 150-limit bearing; 20-screw rod; 30-slider; 40-drive motor; 410-transmission gear; 420-involute gear; 430-rotating shaft; 510-first limit switch; 5110-mounting seat; 5120-limit head; 520-second limit switch; 610-first coupling; 620-second coupling; 630-third coupling; 70-support base; 80-cosmetic box; 90-support plate. DETAILED DESCRIPTION

[0029] The need to place and store items in a vehicle body is one of the important indicators for measuring the ride comfort of a vehicle. However, with the development of intelligent vehicle design, it is increasingly difficult to satisfy the riding experience of passengers by manually unfolding a table top, especially when passengers hold items in their hands. Manually operated table tops are even more difficult to meet the needs of passengers. The embodiment of the utility model proposes an electric sliding mechanism, a dressing table and a vehicle to meet the needs of intelligent item support, placement and storage at the co-pilot position.

[0030] In order to make the technical personnel in this field better understand the present invention, the embodiments of the present invention are described below with reference to the accompanying drawings. In addition, the embodiments shown below do not limit the contents of the utility model described in the claims. In addition, the entire contents of the structures represented by the following embodiments are not limited to those necessary for the solutions of the utility model described in the claims.

[0031] See also Figure 1-9 The electric sliding mechanism provided by the embodiment of the utility model includes a base 10, a screw rod 20, a slider 30, a driving assembly and a limit switch, wherein the base 10 is a bearing member for carrying other components, the screw rod 20 is rotatably arranged on the base 10, and the driving assembly is transmission-connected with the screw rod 20 to drive the screw rod 20 to rotate. It should be noted here that the driving assembly can drive the screw rod 20 to rotate in a clockwise direction or a counterclockwise direction; the slider 30 is sleeved on the outer periphery of the screw rod 20 and meshes with the screw rod 20. The screw rod 20 is arranged on the base 10 and can only rotate relative to the base 10. Therefore, the screw rod 20 will drive the slider 30 to move along the length direction of the screw rod 20 during the rotation process. At the same time, the slider 30 is used to be fixedly connected to the transmission object to drive the transmission object to move along the length direction of the screw rod 20.

[0032] The limit switch is arranged on the base 10 to limit the limit position of the transmission object during the movement of the screw rod 20. Specifically, the limit switch includes at least a first limit switch 510 and a second limit switch 520. During the movement of the transmission object along the length direction of the screw rod 20, there are limit positions at both ends. When the limit position is exceeded, there is a risk of falling off the screw rod 20. When the transmission object is at the two limit positions, it is respectively abutted by the first limit switch 510 and the second limit switch 520 to limit the transmission object, thereby performing limit protection on the transmission object; see Figure 8 Taking the first limit switch 510 as an example, the first limit switch 510 includes a mounting seat 5110 and a limit head 5120. The mounting seat 5110 is fixed on the base 10 by screws, and the limit head 5120 is arranged on the mounting seat 5110, and the limit head 5120 is preferably an elastic structure such as rubber, nylon, etc. to avoid damage to the limit structure caused by rigid contact.

[0033] At the same time, the first limit switch 510 limits the transmission object by means of contact blocking, and its setting position only needs to block and limit a structure that moves synchronously with the transmission object. For example, the limit head 5120 of the first limit switch 510 can be set toward the slider 30 and at the same horizontal height as the slider 30, so as to limit the transmission object by blocking the slider 30. Similarly, the first limit switch 510 can also achieve the limiting effect of the transmission object by abutting against part of the structure on the transmission object itself. It should be noted that the structure and limiting method of the second limit switch 520 are the same as those of the first limit switch 510, which will not be repeated here.

[0034] The electric sliding mechanism provided by the embodiment of the utility model drives the screw rod 20 to rotate through the driving component to drive the slider 30 meshing with the screw rod 20 to move in two directions along the length direction of the screw rod 20. The slider 30 is fixedly arranged with the transmission object to drive the movement of the transmission object. Taking the transmission object as the table board arranged in front of the co-pilot as an example, the table board can realize the movement of automatically retracting into the vehicle body and extending out of the vehicle body. The passenger can also extend and retract the table board when holding items, thereby meeting the support, placement and storage requirements of the items. At the same time, a first limit switch 510 and a second limit switch 520 are arranged to limit the two extreme positions of the transmission object when it moves along the length direction of the screw rod 20, so as to prevent the transmission object from slipping off the screw rod 20. Similarly, taking the transmission object as the table board arranged in front of the co-pilot as an example, the first limit switch 510 and the second limit switch 520 can limit the movement of the table board between being fully embedded in the vehicle body and being fully extended out of the vehicle body, so as to ensure that the table board is located in a safe operating space while automatically driving the movement of the table board.

[0035] In some embodiments of the present invention, see Figure 2 and Figure 3 The driving assembly includes a driving motor 40, and the screw rod 20 is driven by the driving motor 40 to rotate. At the same time, in order to avoid the output shaft of the motor end being directly connected to the screw rod 20 and causing an unstable effect on the rotation of the screw rod 20, it is preferred that the output shaft of the driving motor 40 is connected to a transmission gear 410, and the transmission gear 410 is meshed with the involute gear 420 to drive the rotating shaft 430 at the center position of the involute gear 420 to rotate stably, and then connected to the screw rod 20 through the rotating shaft 430 to drive the screw rod 20 to rotate.

[0036] Furthermore, the control of the drive motor 40 can be achieved through a variety of signal inputs, such as mechanical button pressing, touch screen point control, voice input, etc., and in order to improve the intelligence level of the electric sliding mechanism, it is preferred that the drive motor 40 is connected to the vehicle system to receive touch screen or voice type input signals. Specifically, the signal input to the drive motor 40 includes at least three signals: an open signal, a retraction signal and a stop signal. Specifically, when the drive motor 40 receives the open signal, it will drive the lead screw 20 to rotate in a first direction and drive the transmission object to move, and when the drive motor 40 receives the retraction signal, it will drive the lead screw 20 to rotate in a second direction. It should be noted that the first direction is opposite to the second direction. At this time, the transmission object will perform a reverse movement. In essence, when the drive motor 40 receives the open signal and the retraction signal, it will drive the lead screw 20 to rotate in a clockwise or counterclockwise direction, thereby realizing the movement of the transmission object in opposite directions.

[0037] It should also be noted that the drive motor 40 stops driving after receiving the stop signal, and the transmission object stays at the current position. It should be noted here that the passenger can send a stop signal to make the transmission object run to the position currently required by the passenger according to his or her own habits and actual working conditions. At the same time, the meshing positioning effect of the screw rod 20 and the slider 30 can be used to stably place the transmission object in the current position, thereby meeting the personalized position requirements of different passengers for the transmission object.

[0038] In the above structure, further, the drive motor 40 is also electrically connected to the first limit switch 510 and the second limit switch 520. It should be noted that the electrical connection here specifically refers to a signal connection, so that the drive motor 40 is stopped by feeding back the first limit switch 510 and the second limit switch 520. Specifically, taking the drive motor 40 receiving the start signal as an example, the drive motor 40 will drive the lead screw 20 to rotate along the first direction after receiving the start signal, and drive the transmission object to move toward the first limit switch 510. After the transmission object contacts the first limit switch 510, the first limit switch 510 triggers the contact signal and feeds back the drive motor 40. The drive motor 40 immediately stops driving to avoid damage to the first limit switch 510, and the rotating object moves into place. Similarly, when the drive motor 40 receives the retraction signal, it drives the transmission object to move toward the second limit switch 520. The feedback method of the second limit switch 520 to the drive motor 40 is the same as the above feedback adjustment method.

[0039] Furthermore, it is preferred that the driving motor 40 is a servo motor to drive the screw rod 20 stably and with high precision.

[0040] On the basis of the above structure, whether the transmission object is stable during the movement is closely related to the rotation state of the screw 20, and whether the screw 20 can rotate stably depends on the transmission structure of the rotating shaft 430 and the screw 20. Therefore, in some embodiments of the utility model, the rotating shaft 430 is connected to the screw 20 through a coupling to transmit torque to the screw 20 stably and compensate for the axial installation deviation of the screw 20 and the rotating shaft 430. At the same time, it can absorb component vibration and buffer load impact during the transmission process to improve transmission stability. Specifically, see Figure 4 The coupling includes a first-stage coupling 610, a second-stage coupling 620 and a third-stage coupling 630, wherein the end of the rotating shaft 430 is a groove structure with a depression in the middle, and the first-stage coupling 610 is provided with a protrusion corresponding to the position of the groove to clamp the end of the rotating shaft 430 and rotationally lock it in the circumferential direction, while the end of the screw rod 20 is cut into a plane structure on the circumference of the outer wall, and is inserted into the slot of the third-stage coupling 630 and rotationally locked, and the first-stage coupling 610 and the third-stage coupling 630 are respectively provided with mutually perpendicular grooves on the sides facing each other, and cross protrusions are provided on both sides of the second-stage coupling 620 to lock the first-stage coupling 610 and the third-stage coupling 630 and stably transmit the torque.

[0041] Furthermore, considering that the screw rod 20 is a rod structure with a relatively narrow width, the transmission object is prone to the risk of shaking on both sides when moving along the length direction of the screw rod 20. Figure 2Therefore, a guide shaft 110 and a guide block 120 slidably mounted on the outer periphery of the guide shaft 110 are fixedly arranged on the base 10. The guide shaft 110 is arranged parallel to the screw rod 20, and the guide block 120 is provided with a clamping buckle and a screw connection hole. The guide block 120 is used to be fixedly connected to the transmission object so that the transmission object has other fulcrums during the movement along the length direction of the screw rod 20, thereby improving the stable state during the movement; and it needs to be further explained that, preferably, two groups of guide shafts 110 are arranged on the base 10, and each group of guide shafts 110 is slidably provided with a guide block 120 for fixedly connecting the transmission object. At the same time, the two groups of guide shafts 110 are symmetrically arranged about the screw rod 20, so as to support the transmission object at symmetrical positions on both sides of the screw rod 20, thereby making the movement process of the transmission object more stable.

[0042] The screw rod 20 is rotatably arranged relative to the base 10, and it also needs to be limited in the axial direction to avoid any movement other than rotation relative to the base 10 that would affect the stability of the transmission. Figure 2 , Figure 5 and Figure 6 Therefore, the first support seat 130 and the second support seat 140 are fixedly arranged on the base 10 at intervals, and the first support seat 130 and the second support seat 140 are respectively embedded with limit bearings 150, the outer ring of the limit bearing 150 is connected to the first support seat 130 and the second support seat 140, and the screw rod 20 is arranged through the inner ring of the limit bearing 150, and the end position of the first support seat 130 can be used to limit the axial position of the screw rod 20 through a nut.

[0043] In addition, the slider 30 needs to be meshed with the screw rod 20, and its size should not be designed to be too large. However, a small slider 30 is difficult to achieve a stable connection with the transmission object. Figure 7 Therefore, in some embodiments of the utility model, the electric sliding mechanism also includes a support base 70 as a transition connection piece between the slider 30 and the transmission object. The support base 70 is preferably an L-shaped configuration, one side of which is fixedly connected to the slider 30. At the same time, the L-shaped structure can lift the transmission object so that the transmission object has sufficient fixed space to ensure the stability of the transmission process.

[0044] See also Fig. 9The embodiment of the utility model also provides a dressing table, which includes the electric sliding mechanism provided by any of the above embodiments, and also includes a makeup box 80. The makeup box 80 serves as a transmission object, and its bottom is fixedly connected to the slider 30, so that under the drive of the driving component, as the slider 30 moves along the length direction of the screw rod 20, the automatic movement of the makeup box 80 is realized. During the movement of the makeup box 80, when the makeup box 80 moves to a first limit position along the length direction of the screw rod 20, it is abutted and limited by a limit switch. At the same time, the makeup box 80 is completely embedded in the vehicle body for storage, and will not affect the space inside the vehicle body; and when the makeup box 80 moves to a second limit position along the length direction of the screw rod 20, it is also abutted and limited by the limit switch. At the same time, the makeup box 80 partially or completely extends out of the vehicle body to meet the passengers' cosmetics taking and placing, and article support needs.

[0045] Furthermore, the top surface of the makeup box 80 is designed to be an open structure, and a support plate 90 is rotatably provided on the top surface of the makeup box 80, and the support plate 90 will change its overlapping area with the open top surface of the makeup box 80 during the rotation process. Specifically, the support plate 90 includes at least a first working position and a second working position on its rotation path. When the support plate 90 is rotated to the first working position, the overlapping area with the top surface of the makeup box 80 is the largest. At this time, the makeup box 80 is in a closed state to shield and protect the internal storage; and when the support plate 90 is rotated to the second working position, the overlapping area with the top of the makeup box 80 is the smallest. At this time, the support plate 90 rotates away from the top surface of the makeup box 80 and extends out of one side of the makeup box 80 to meet the support needs of the passenger.

[0046] It should be noted that, on the one hand, the support plate 90 is provided to open and close the top of the makeup box 80 so that the passenger can take and put the items in the makeup box 80, and on the other hand, the support plate 90 can meet the passenger's support needs for different positions of the dressing table. When the support plate 90 is in the first working position, the passenger can support the makeup box 80 by sliding it out of the vehicle body to the outside of the vehicle body. At the same time, when the dressing table is felt to be far away from a comfortable position for the human body, the support plate 90 can be rotated to the second working position to extend the makeup box 80, thereby meeting another public support need.

[0047] On the basis of the above structure, the makeup box 80 can adjust its extension degree relative to the vehicle body by sliding on the screw rod 20, so as to meet the needs of different passengers for the length of the supporting structure on the dressing table; without considering the change of the position of the makeup box 80 on the screw rod 20, only considering the position of the makeup box 80 at least fully embedded in the vehicle body and fully extended out of the vehicle body in the sliding path, the cooperation with the support plate 90 can realize three support structures with different support states to meet the different support working conditions of passengers. Specifically, the first support state is that the makeup box 80 is in a position where it is fully embedded in the vehicle body, and the support plate 90 is in the second working position. At this time, only The support plate 90 extends out of the vehicle body to meet the support needs of the passengers; the second support state is that the makeup box 80 is located in a position fully extended from the vehicle body, and the support plate 90 is located in the first working position, and the area on the top surface of the makeup box 80 covered by the support plate 90 serves as a support area to meet the support needs of the passengers; and the third support state is that the makeup box 80 is located in a position fully extended from the vehicle body, and the support plate 90 is located in the second working position, at this time, the makeup box 80 is fully opened, the passengers can freely take and put items, and the support plate 90 is in the maximum extended state, so as to achieve the maximum support effect of the dressing table and meet the support needs of the passengers when they are far away from the co-pilot table.

[0048] Furthermore, the embodiment of the utility model also discloses a vehicle, which includes a dressing table provided in any of the above embodiments, and preferably the dressing table is arranged in the glove box position in front of the co-pilot, so as to facilitate the co-pilot's needs of placing items and putting on makeup, etc. Since the above support table has the above effects, the above vehicle also has corresponding effects, which will not be described here. At the same time, it should be noted that the above vehicle can be a pure electric drive vehicle, a hybrid vehicle or a fuel vehicle, etc.

[0049] It should be noted that, for the convenience of description, only the parts related to the utility model are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the utility model can be combined with each other.

[0050] In the following, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features.

[0051] The above description is only a preferred embodiment of the utility model and an explanation of the technical principles used, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. The scope of the utility model involved in the utility model is not limited to the technical solution formed by a specific combination of the above-mentioned technical features, but also should cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the concept of the above-mentioned utility model. For example, the above-mentioned features are replaced with the technical features with similar functions disclosed in the utility model (but not limited to) to form a technical solution.

Claims

1. An electric sliding mechanism, characterized in that: It includes a base, a screw rod, a slider, a driving assembly and a limit switch, wherein the screw rod is rotatably arranged on the base, the driving assembly is connected to the screw rod in a transmission manner to drive the screw rod to rotate, the slider is sleeved on the outer periphery of the screw rod and meshed with the screw rod, and the slider is used to fix and connect a transmission object to drive the transmission object to move along the length direction of the screw rod; The limit switch is fixedly arranged on the base to limit the limit position of the transmission object. The limit switch includes at least a first limit switch and a second limit switch. When the transmission object moves to the limit positions at both ends along the length direction of the lead screw, it is respectively abutted and limited by the first limit switch and the second limit switch.

2. The electric sliding mechanism according to claim 1, characterized in that: The driving assembly comprises a driving motor, and the driving motor drives the rotating shaft to rotate through a meshing transmission gear and an involute gear, and the rotating shaft drives the lead screw to rotate.

3. The electric sliding mechanism according to claim 2, characterized in that: The drive motor is connected to the vehicle system to receive a touch screen or voice type input signal, and the input signal includes at least a start signal, a retraction signal and a stop signal. After receiving the start signal, the drive motor drives the lead screw to rotate in a first direction. After receiving the retraction signal, the drive motor drives the lead screw to rotate in a second direction, and the first direction is opposite to the second direction. After receiving the stop signal, the drive motor stops driving.

4. The electric sliding mechanism according to claim 2, characterized in that: The rotating shaft is connected to the screw rod through a coupling, and the coupling includes a primary coupling, a secondary coupling and a tertiary coupling. The end of the rotating shaft is a groove structure and is clamped and locked with the primary coupling, and the end of the screw rod is inserted into and locks the tertiary coupling. The secondary coupling is used to clamp and synchronize the primary coupling and the tertiary coupling.

5. The electric sliding mechanism according to claim 1, characterized in that: It also includes a guide shaft arranged on the base, and a guide block slidably sleeved on the outer periphery of the guide shaft, the guide shaft is arranged parallel to the screw rod, and the guide block is used to be fixedly connected to the transmission object.

6. The electric sliding mechanism according to claim 5, characterized in that: The guide shafts are arranged in two groups, and the two groups of guide shafts are arranged symmetrically about the screw rod.

7. The electric sliding mechanism according to claim 1, characterized in that: A first support seat and a second support seat are fixed on the base at intervals, and a limiting bearing is embedded in the first support seat and the second support seat, and the screw rod is arranged through the inner ring of the limiting bearing.

8. The electric sliding mechanism according to claim 1, characterized in that: It also includes a support base, which is L-shaped and fixedly connected to the slider.

9. A dressing table, characterized in that: It includes an electric sliding mechanism as described in any one of claims 1 to 8, and also includes a makeup box, the bottom of which is fixedly connected to the slider so as to move along the length direction of the screw rod with the slider under the drive of the driving assembly, and the makeup box is completely embedded in the vehicle body when it moves to a first extreme position along the length direction of the screw rod, and at least partially extends out of the vehicle body when it moves to a second extreme position along the length direction of the screw rod.

10. A vehicle, characterized in that: A dressing table as claimed in claim 9 is arranged in front of the co-pilot.

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