A bidirectional synchronous telescopic electric cylinder for electric vehicles

Abstract

The application discloses a bidirectional synchronous telescopic electric cylinder for electric vehicles, and relates to the field of telescopic electric cylinders, which comprises an electric cylinder body and a servo motor, the servo motor is fixedly installed at one end of the electric cylinder body, one end of the electric cylinder body is fixedly connected with a supporting mechanism, the supporting mechanism comprises a base and supporting tables symmetrically distributed along the center line, and the bottom of each of the two supporting tables is fixedly connected with a strake. The two electric cylinder bodies are installed on the supporting mechanism, the position of the two electric cylinder bodies can be determined by the supporting tables, in actual use, the two supporting tables can be moved a distance along the direction of the base, so that the position of the electric cylinder body can be adjusted, the piston rod can be connected with other equipment, and the center of gravity of the whole device does not change when the supporting tables are moved, so that the balance of the device as a whole is not affected when the piston rod is extended subsequently.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of telescopic electric cylinders, in particular to a bidirectional synchronous telescopic electric cylinder for electric vehicles. BACKGROUND

[0002] In the modern industrial field, the bidirectional telescopic electric cylinder plays a key role in many device operations due to its unique mechanical structure. Its significant feature is that it is equipped with two cylinder bodies, and the piston rods in the two cylinder bodies are arranged in opposite directions. This design gives the bidirectional telescopic electric cylinder powerful power drive and precise control capability, and it is widely used in seat adjustment, battery management system, door control and other fields. In the adjustment mechanism of the electric vehicle seat, the bidirectional synchronous telescopic electric cylinder can be used to realize the forward and backward movement, height adjustment and backrest angle adjustment of the seat.

[0003] For example, the bidirectional synchronous telescopic electric cylinder with publication number CN215634788U includes a motor, a right-angle commutator connected to the motor, an output end of the right-angle commutator connected to bevel gear one, both sides of bevel gear one connected to bevel gear two and bevel gear three, and the shafts of bevel gear two and bevel gear three connected to the telescopic mechanism.

[0004] However, the traditional bidirectional telescopic electric cylinder adopts an integrated structure, which has obvious shortcomings. Although this structure ensures the rigidity and stability of the electric cylinder as a whole, it lacks flexibility due to the relatively fixed positions of the components, especially when connecting with other devices. This fixed structure greatly limits the selection of the connection position of the piston rod with other devices.

[0005] In some compact industrial scenarios, the distribution of devices is complex, and the installation position and angle of the bidirectional telescopic electric cylinder are extremely strict. The traditional integrated bidirectional telescopic electric cylinder cannot be flexibly adjusted according to the actual situation, which easily causes a space conflict with the surrounding devices, making it difficult for the piston rod to accurately connect to the target device, seriously affecting the normal installation and operation of the device. SUMMARY

[0006] The purpose of the present application is to provide a bidirectional synchronous telescopic electric cylinder for electric vehicles to solve the problem of the traditional integrated bidirectional telescopic electric cylinder which cannot be flexibly adjusted according to the actual situation, easily causes a space conflict with the surrounding devices, makes it difficult for the piston rod to accurately connect to the target device, and seriously affects the normal installation and operation of the device.

[0007] To achieve the above purpose, the present application provides the following technical scheme: a bidirectional synchronous telescopic electric cylinder for electric vehicles, comprising an electric cylinder body and a servo motor, the servo motor is fixedly installed at one end of the electric cylinder body, and the electric cylinder body is fixedly connected with a supporting mechanism at one end.

[0008] The support mechanism comprises a base and support tables symmetrically distributed along the center line thereof, the bottom of each of the two support tables is fixedly connected with a clamping plate, a partition plate is fixedly installed on the inner wall of the base, the lower surface of the clamping plate is lapped on the upper surface of the partition plate, the top of each of the two support tables is fixedly connected with a positioning block, the positioning block is fixedly connected with one end of the cylinder body of the electric cylinder, the top of one of the positioning blocks is fixedly connected with a first limiting plate, and the top of the other positioning block is fixedly connected with a second limiting plate, when the electric cylinder is connected with other equipment, the support mechanism can flexibly adjust the positions of the two support tables, the positions of the support tables are accurately adjusted, the piston rods in the cylinder bodies of the two electric cylinders can be effectively and simultaneously connected with two different equipment, which is of great significance for ensuring the stability and collaborative working efficiency of the entire equipment system, and ensures the accurate docking and smooth operation of the equipment, the support table supporting the cylinder body of the electric cylinder is one of the key components in the electric cylinder system, and the main function of the support table is to provide stable support for the cylinder body of the electric cylinder and has the ability of position adjustment to meet the installation requirements under different working conditions.

[0009] Preferably, the top of the base is fixedly installed with protection plates, the support tables are located between the two protection plates, one side of the base is provided with a speed reducer motor, and the output shaft of the speed reducer motor is fixedly connected with a transmission rod.

[0010] Preferably, the inside of the base is rotatably installed with a gear shaft in a vertical state, one end of the transmission rod and the outer wall of the gear shaft are both fixedly installed with a bevel gear, and the two bevel gears are meshed with each other.

[0011] Preferably, the bottom of each of the two clamping plates is fixedly connected with a limiting block, the limiting block is slidingly connected between the two partition plates, the inside of one of the limiting blocks is fixedly installed with a first toothed rod, and the inside of the other limiting block is fixedly installed with a second toothed rod.

[0012] Preferably, the first toothed rod and the second toothed rod are symmetrically and oppositely arranged along the center line of the base, and the inside of each of the two limiting blocks is provided with an accommodation groove for accommodating the first toothed rod and the second toothed rod.

[0013] Preferably, the upper surface of the bevel gear on the gear shaft is fixedly installed with a connecting gear, the connecting gear is located between the first toothed rod and the second toothed rod, and the connecting gear is meshed with the first toothed rod and the second toothed rod, when the gear shaft rotates clockwise, the power generated by the rotation pushes the first toothed rod to move rightward and the second toothed rod to move leftward, at this time, the two support tables gradually approach each other, and vice versa, when the gear shaft rotates counterclockwise, the direction of the power changes, the first toothed rod moves leftward and the second toothed rod moves rightward, so that the two support tables move away from each other.

[0014] Preferably, one end of the first limiting plate is fixedly connected with a connecting rod, and one end of the connecting rod is inserted into the second limiting plate.

[0015] Preferably, an arc-shaped groove with an arc matched with the connecting gear is arranged in the inner end of the limiting block, and the edge of the limiting block and the edge of the partition plate are spliced with each other, the shape and size of the arc-shaped groove are perfectly matched with the connecting gear, and the arc-shaped groove is designed so that the connecting gear can be accurately accommodated therein when the connecting gear is operated at high speed, effectively avoiding interference with the two limiting blocks, and ensuring smooth operation of the two limiting blocks during splicing and separation.

[0016] Preferably, the connecting gear is located in the arc-shaped groove, and one end of the first toothed rod and one end of the second toothed rod are fixedly connected to the groove wall of the arc-shaped groove.

[0017] Compared with the prior art, the present application has the following advantages:

[0018] 1、In the application, the two electric cylinder bodies are installed on the support mechanism, the support table can determine the position of the two electric cylinder bodies, and in actual use, the two support tables can be moved a distance along the direction of the base, so that the position of the electric cylinder body can be adjusted to facilitate the connection of the piston rod with other equipment, and when the support table is moved, the position of the center of gravity of the whole device does not change, and when the piston rod is subsequently extended, the balance of the device as a whole is not affected, ensuring that the bidirectional telescopic electric cylinder can ensure its stability in the case of being connected with most equipment, the stable electric cylinder can ensure that the piston rod always maintains an accurate straight line motion track during extension, avoiding work errors caused by shaking or displacement, thereby effectively improving production efficiency and product quality. In addition, stability can also prolong the service life of the equipment, reduce component wear and damage caused by vibration and instability factors, reduce equipment maintenance cost, and therefore, the bidirectional telescopic electric cylinder can still reliably operate in the case of being connected with most equipment due to its excellent stability.

[0019] 2、The interior of the base is provided with a partition plate to determine the moving route of the support table, and a clamping plate and a limiting block are respectively arranged on the outer wall and the bottom of the support table, the limiting block is between the two partition plates, which can effectively maintain the stability of the support table to ensure that the support table does not shake during movement, and the clamping plate can slide closely on the surface of the partition plate during the movement of the support table, which not only plays a good guiding role, but also can bear part of the load of the support table to some extent, thereby enhancing the stability of the support table. At the same time, the limiting blocks are symmetrically arranged at the bottom of the support table, and when the support table moves, the limiting blocks can only translate along the predetermined direction under the constraint of the partition plate, thereby effectively limiting the shaking and displacement of the support table in the horizontal and vertical directions, ensuring the stability of the support table during movement, and providing a solid and reliable support platform for the electric cylinder body. First and second limiting plates are arranged on the two limiting blocks respectively to fix the electric cylinder body and prevent the electric cylinder body from shaking.

[0020] 3、The first and second tooth rods are arranged in the arc-shaped grooves, which can not only ensure the structural stability of the first and second tooth rods, but also ensure that the connecting gear does not affect the normal splicing of the two limiting blocks. The first and second tooth rods are arranged in the arc-shaped grooves, which can not only provide a stable support structure for the first and second tooth rods, but also disperse the pressure borne by the tooth rods during movement, thereby effectively reducing the risk of deformation or damage of the tooth rods and ensuring the structural stability thereof. At the same time, due to the unique layout of the arc-shaped grooves, the interference area between the connecting gear and the two limiting blocks can be avoided, so that the connecting gear does not affect the normal splicing of the two limiting blocks during operation. Since the meshing relationship between the connecting gear and the first and second tooth rods is designed according to the module and the number of teeth, the pushing force exerted by the connecting gear on the first and second tooth rods can be uniform and stable during continuous rotation of the gear shaft, so that the distance between the first and second tooth rods during movement is always equal. This feature can play an important role in many work scenes with high displacement accuracy requirements, such as positioning adjustment of precision instruments and precise assembly of automatic production lines, thereby improving the working accuracy and reliability of the entire electric cylinder system. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a structural schematic view of a bidirectional synchronous telescopic electric cylinder for an electric vehicle.

[0022] Figure 2 It is a top view of a bidirectional synchronous telescopic electric cylinder for an electric vehicle.

[0023] Figure 3 It is a schematic view of the internal structure of the base of a bidirectional synchronous telescopic electric cylinder for an electric vehicle.

[0024] Figure 4 It is a support mechanism of a bidirectional synchronous telescopic electric cylinder for an electric vehicle of the application;

[0025] Figure 5 It is a support mechanism of a bidirectional synchronous telescopic electric cylinder for an electric vehicle of the application;

[0026] Figure 6 It is a gear shaft and transmission rod plane structure diagram of a bidirectional synchronous telescopic electric cylinder for an electric vehicle of the application;

[0027] Figure 7 It is a limiting block and lap plate structure diagram of a bidirectional synchronous telescopic electric cylinder for an electric vehicle of the application.

[0028] In the figure: 1, electric cylinder body; 2, servo motor; 3, support mechanism; 31, base; 32, protection plate; 33, first limiting plate; 34, second limiting plate; 35, support table; 36, limiting block; 37, speed reducer; 38, transmission rod; 39, conical gear; 310, containing groove; 311, first toothed rod; 312, second toothed rod; 313, partition plate; 314, lap plate; 315, positioning block; 316, connecting rod; 317, connecting gear; 318, arc-shaped groove; 319, gear shaft. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0030] Embodiment one: refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 A bidirectional synchronous telescopic electric cylinder for an electric vehicle, comprising an electric cylinder body 1 and a servo motor 2, the servo motor 2 is fixedly installed at one end of the electric cylinder body 1, and the electric cylinder body 1 is fixedly connected with a support mechanism 3 at one end;

[0031] The support mechanism 3 comprises a base 31 and support tables 35 symmetrically distributed along the center line thereof, the bottoms of the two support tables 35 are fixedly connected with battens 314, a partition plate 313 is fixedly installed on the inner wall of the base 31, the lower surface of the batten 314 is lapped on the upper surface of the partition plate 313, the tops of the two support tables 35 are fixedly connected with positioning blocks 315, the positioning blocks 315 are fixedly connected with one end of the electric cylinder body 1, the top of one of the positioning blocks 315 is fixedly connected with a first limiting plate 33, and the top of the other positioning block 315 is fixedly connected with a second limiting plate 34;

[0032] The top of the base 31 is fixedly installed with protection plates 32, the support tables 35 are located between the two protection plates 32, one side of the base 31 is provided with a speed reducer motor 37, the output shaft of the speed reducer motor 37 is fixedly connected with a transmission rod 38, a gear shaft 319 is vertically rotatably installed in the interior of the base 31, one end of the transmission rod 38 and the outer wall of the gear shaft 319 are fixedly installed with bevel gears 39, and the two bevel gears 39 are meshed with each other.

[0033] In this embodiment, the electric cylinder body 1 is the core bearing component of the entire electric cylinder system, and its main function is to accommodate the piston rod and the transmission mechanism. The piston rod plays a key role in the operation of the electric cylinder, as it is responsible for converting internal mechanical motion into external linear motion to drive or operate other equipment.

[0034] In actual use, the servo motor 2 plays an important role as a power source. When the electric cylinder starts to work, the servo motor 2 starts to work, and through the internal complex and precise transmission mechanism, the rotational force of the servo motor 2 is transmitted to the piston rod, so as to push the piston rod out of the electric cylinder body 1. It is worth mentioning that in some application scenarios with high synchronization requirements, two servo motors 2 are provided, which operate synchronously with the same power, so as to ensure that the two piston rods realize synchronous extension and contraction. This synchronous extension and contraction characteristic is crucial in many devices that require precise control and collaborative work, such as some large-scale machining equipment or automatic production lines.

[0035] When the electric cylinder is connected with other equipment, the support mechanism 3 can flexibly adjust the positions of the two support tables 35. By accurately adjusting the positions of the support tables 35, it can effectively ensure that the piston rods in the two electric cylinder bodies 1 can be connected with two different devices at the same time and accurately. This process is of great significance to ensure the stability and collaborative work efficiency of the entire device system, and ensures the precise docking and smooth operation between devices.

[0036] The support table 35 supporting the electric cylinder body 1 is one of the key components in the electric cylinder system. The main function of the support table 35 is to provide stable support for the electric cylinder body 1, while having the ability of position adjustment to meet the installation requirements under different working conditions. When adjusting the position of the electric cylinder body 1, the system provides power through the reduction motor 37. The output shaft of the reduction motor 37 is directly connected with the transmission rod 38. The other end of the transmission rod 38 is equipped with a precisely machined conical gear 39. When the reduction motor 37 starts, the power is transmitted to the conical gear 39 through the transmission rod 38. The conical gear 39 meshes with the corresponding gear on the gear shaft 319, converting the rotary motion into the rotation of the gear shaft 319,

[0037] The rotation of the gear shaft 319 further drives the synchronous movement of the two support tables 35 on the guide rails of the base 31. This design of double support tables 35 not only ensures the stability of the electric cylinder body 1 during adjustment, but also makes the position adjustment more accurate. By controlling the rotation direction and angle of the reduction motor 37, the displacement of the two support tables 35 can be accurately controlled, thereby realizing the fine adjustment of the position of the electric cylinder body 1. This adjustment mechanism is particularly suitable for occasions that require high-precision docking,

[0038] The advantage of this design is that it can complete the position adjustment of the electric cylinder body 1 while keeping the center of gravity of the entire device unchanged. Traditional adjustment methods often need to move the entire device, which will cause the center of gravity to shift, affecting the running stability of the equipment. This design avoids this problem by independently adjusting the position of the support table 35, ensuring the stable operation of the equipment under various complex working conditions. Especially in high-speed motion or heavy load working conditions, this structure can effectively reduce vibration and impact, prolonging the service life of the electric cylinder,

[0039] In addition, this structure also has the characteristics of convenient maintenance. Since the transmission components such as the reduction motor 37, the transmission rod 38 and the conical gear 39 are installed inside the base 31, the transmission system is protected from external environmental influences, and regular maintenance and maintenance are facilitated. The connection between the gear shaft 319 and the support table 35 adopts a modular design, which can be quickly disassembled when replacement or repair is needed, greatly reducing the downtime of the equipment.

[0040] The butt strap 314 is made of thickened steel plate and has sufficient strength and rigidity to withstand various forces generated by the electric cylinder body 1 and the piston rod during operation. The butt strap 314 is tightly lapped on the partition plate 313, which is evenly distributed inside the base 31, plays a good supporting and positioning role, and effectively guarantees the stability of the support table 35. At the same time, the base 31 has a cavity specially designed to accommodate the butt strap 314. This structure not only prevents the support table 35 from shaking in the horizontal direction, but also buffers the impact force from the outside to a certain extent, further improving the stability and reliability of the support table 35. The top of the support table 35 is provided with a positioning block 315 for connecting the electric cylinder body 1, and the two positioning blocks 315 are respectively provided with a first limiting plate 33 and a second limiting plate 34 for fixing the electric cylinder body 1 to prevent the electric cylinder body 1 from shaking.

[0041] Embodiment two: according to Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 , the bottom of the two butt straps 314 is fixedly connected with a limiting block 36, the limiting block 36 is slidingly connected between the two partition plates 313, and the inside of one limiting block 36 is fixedly installed with a first tooth rod 311, and the inside of the other limiting block 36 is fixedly installed with a second tooth rod 312. The first tooth rod 311 and the second tooth rod 312 are symmetrically and oppositely arranged along the center line of the base 31, and the inside of the two limiting blocks 36 is provided with an accommodating groove 310 for accommodating the first tooth rod 311 and the second tooth rod 312. The upper surface of the bevel gear 39 on the gear shaft 319 is fixedly installed with an engaging gear 317, the engaging gear 317 is located between the first tooth rod 311 and the second tooth rod 312, and the engaging gear 317 is in meshing connection with the first tooth rod 311 and the second tooth rod 312.

[0042] In this embodiment, the limiting block 36 is arranged at the bottom of the butt strap 314 and is located between the two partition plates 313. This layout can significantly improve the stability of the support table 35 and lay a foundation for reliable operation of the entire mechanical structure.

[0043] In the inside of the two limiting blocks 36, the first tooth rod 311 and the second tooth rod 312 are respectively built-in. When the gear shaft 319 starts to rotate, it will drive the engaging gear 317 to rotate through mechanical transmission. Since the engaging gear 317 is in close meshing with the first tooth rod 311 and the second tooth rod 312, and the first tooth rod 311 and the second tooth rod 312 are symmetrically distributed on the two sides of the engaging gear 317, the first tooth rod 311 and the second tooth rod 312 will move in opposite directions under the drive of the engaging gear 317. The movement of the two tooth rods can realize flexible adjustment of the positions of the two support tables 35.

[0044] In combination Figure 4 When the gear shaft 319 rotates clockwise, the power generated by the rotation pushes the first tooth bar 311 to move to the right and the second tooth bar 312 to move to the left, at this time, the two support tables 35 gradually approach each other; conversely, when the gear shaft 319 rotates counterclockwise, the direction of the power changes, which pushes the first tooth bar 311 to move to the left and the second tooth bar 312 to move to the right, so that the two support tables 35 move away from each other. It is particularly pointed out that when the two support tables 35 approach each other, the first tooth bar 311 and the second tooth bar 312 will respectively slide into the accommodating groove 310 of the opposite limiting block 36, through this ingenious cooperation, it is ensured that the two limiting blocks 36 can be perfectly spliced together, further guaranteeing the stability and reliability of the entire structure.

[0045] Embodiment three: according to Figure 5 、 Figure 6 and Figure 7 , one end of the first limiting plate 33 is fixedly connected with the connecting rod 316, one end of the connecting rod 316 is inserted into the inside of the second limiting plate 34, the inside of one end of the limiting block 36 is provided with an arc-shaped groove 318 with an arc matched with the connecting gear 317, the edge of the limiting block 36 and the edge of the partition plate 313 are spliced with each other, the connecting gear 317 is located in the inside of the arc-shaped groove 318, and one end of the first tooth bar 311 and one end of the second tooth bar 312 are fixedly connected to the groove wall of the arc-shaped groove 318.

[0046] In this embodiment, the connecting rod 316 on the first limiting plate 33 is made of high-strength alloy steel material and is carefully forged, and the surface thereof is subjected to precise grinding and polishing treatment, so as to not only have excellent strength and wear resistance, but also realize high-precision close cooperation with the second limiting plate 34. One end of the connecting rod 316 is accurately inserted into the accommodating groove 310 of the second limiting plate 34, this plug-in connection mode greatly enhances the connection stability between the first limiting plate 33 and the second limiting plate 34, when the two support tables 35 move close to or away from each other on the base 31, the connecting rod 316 can smoothly enter and exit the second limiting plate 34 according to the real-time motion state of the support table 35, and in the whole process, the cooperation between the connecting rod 316 and the second limiting plate 34 ensures the flexibility and stability of the relative motion of the two, and can ensure that the first limiting plate 33 and the second limiting plate 34 are closely connected under any working condition, to provide reliable limiting support for the electric cylinder body 1.

[0047] Meanwhile, the limiting block 36 as a key component of the support table 35 structure is internally provided with a special arc-shaped groove 318 which is perfectly matched with the engaging gear 317 in shape and size. The design of the arc-shaped groove 318 enables the engaging gear 317 to be accurately accommodated therein when running at high speed, effectively avoiding interference with the two limiting blocks 36, ensuring smooth operation of the two limiting blocks 36 during splicing and separation. Whether in the initial installation and debugging stage of the bidirectional telescopic electric cylinder or in the long-term continuous operation process, this structure can ensure that the engaging gear 317 stably plays a transmission role, while ensuring that the function of the limiting block 36 is not affected, laying a solid structural foundation for the overall stability and reliability of the bidirectional telescopic electric cylinder. In actual application, the bidirectional telescopic electric cylinder needs to be frequently adjusted in position and switched in action with high precision. The ingenious design of the engaging rod 316 and the arc-shaped groove 318 can ensure that the entire system always maintains a stable and reliable operating state under the requirements of high speed and high precision, effectively improving production efficiency and product quality.

[0048] The use method and working principle of the device are as follows: in use, the piston rod is pushed out of the electric cylinder body 1 by the servo motor 2 through the transmission mechanism, and the two servo motors 2 operate synchronously at the same power to achieve the purpose of synchronous telescoping. When connected with other equipment, the support mechanism 3 can adjust the positions of the two support tables 35 to ensure that the piston rods in the two electric cylinder bodies 1 can be connected with two devices at the same time.

[0049] The power source for adjusting the position of the support table 35 is the reduction motor 37. When the reduction motor 37 operates, the transmission rod 38 is driven to rotate. The transmission rod 38 transmits power to the gear shaft 319 connected thereto by rotating itself. When the gear shaft 319 starts to rotate, the engaging gear 317 synchronously rotates. The special tooth shape design and installation position of the engaging gear 317 determine the unique transmission relationship between the first tooth rod 311 and the second tooth rod 312. During the rotation of the gear shaft 319, the engaging gear 317 cleverly pushes the first tooth rod 311 and the second tooth rod 312 to move in opposite directions, respectively, thereby realizing the adjustment of the positions of the two support tables 35.

[0050] During the movement of the support table 35, the bottom of the support table 35 is tightly matched with the partition plate 313, and the support table 35 is always stably overlapped on the partition plate 313. This structure not only effectively disperses the pressure borne by the support table 35, but also plays a guiding role during the movement, ensuring the stability of the movement of the support table 35. Meanwhile, the limiting block 36 is always tightly spliced between the two partition plates 313, further enhancing the stability of the support table 35. The base 31 is specially designed with a cavity accommodating the support plate 314. The existence of the cavity can effectively limit the activity range of the support plate 314, preventing the support table 35 from shaking due to uneven force during the movement, thereby ensuring the stability and reliability of the entire support structure from multiple aspects.

[0051] In combination Figure 4 With the above, the dynamic process of the position adjustment of the support table 35 can be more intuitively understood. When the gear shaft 319 rotates clockwise, the connecting gear 317 synchronously rotates clockwise, which pushes the first toothed rod 311 to move rightward and pushes the second toothed rod 312 to move leftward. The two support tables 35 connected with the toothed rods also move closer to each other. Conversely, when the gear shaft 319 rotates counterclockwise, the connecting gear 317 rotates counterclockwise, which pushes the first toothed rod 311 to move leftward and pushes the second toothed rod 312 to move rightward. At this time, the two support tables 35 move away from each other. When the two support tables 35 move closer to each other, the first toothed rod 311 and the second toothed rod 312 accurately enter the accommodating grooves 310 of the opposite limiting blocks 36, like two perfectly matched pieces of a puzzle, ensuring that the two limiting blocks 36 can be smoothly spliced together. It is worth mentioning that the limiting block 36 is specially provided with an arc-shaped groove 318, which is used to cleverly accommodate the connecting gear 317. During the rotation of the connecting gear 317, the arc-shaped groove 318 provides a space for the rotation of the connecting gear 317, ensuring that the connecting gear 317 can normally rotate without interfering with the normal splicing of the two limiting blocks 36, thereby further improving the reliability and stability of the entire support structure.

[0052] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions described in the foregoing embodiments or make equivalent replacements to some technical features, as long as the modifications, equivalent replacements, improvements, etc. are within the spirit and principles of the present application. Any modification, equivalent replacement, improvement, etc. shall be included in the protection scope of the present application.

Claims

1. A bidirectional synchronous telescopic electric cylinder for electric vehicles, comprising an electric cylinder body (1) and a servo motor (2), the servo motor (2) being fixedly installed at one end of the electric cylinder body (1), characterized in that: One end of the electric cylinder body (1) is fixedly connected with a support mechanism (3); The support mechanism (3) comprises a base (31) and support tables (35) symmetrically distributed along the center line thereof, the bottoms of the two support tables (35) are fixedly connected with laps (314), the inner wall of the base (31) is fixedly installed with a partition plate (313), the lower surface of the lap (314) is lapped on the upper surface of the partition plate (313), the tops of the two support tables (35) are fixedly connected with positioning blocks (315), one end of the electric cylinder body (1) is fixedly connected with the positioning blocks (315), the top of one of the positioning blocks (315) is fixedly connected with a first limiting plate (33), and the top of the other positioning block (315) is fixedly connected with a second limiting plate (34); The top of the base (31) is fixedly installed with protection plates (32), the support tables (35) are located between the two protection plates (32), one side of the base (31) is provided with a speed reducer (37), the output shaft of the speed reducer (37) is fixedly connected with a transmission rod (38), the inside of the base (31) is rotationally installed with a gear shaft (319) in a vertical state, the outer wall of one end of the transmission rod (38) and the gear shaft (319) is fixedly installed with a bevel gear (39), and the two bevel gears (39) are meshed with each other, the bottoms of the two laps (314) are fixedly connected with limiting blocks (36), the limiting blocks (36) are slidingly connected between the two partition plates (313), the inside of one of the limiting blocks (36) is fixedly installed with a first toothed rod (311), the inside of the other limiting block (36) is fixedly installed with a second toothed rod (312), the upper surface of the bevel gear (39) on the gear shaft (319) is fixedly installed with a linking gear (317), the linking gear (317) is located between the first toothed rod (311) and the second toothed rod (312), and the linking gear (317) is meshed with the first toothed rod (311) and the second toothed rod (312), one end of the first limiting plate (33) is fixedly connected with a linking rod (316), and one end of the linking rod (316) is inserted into the inside of the second limiting plate (34).

2. The bidirectional synchronous telescopic electric cylinder for electric vehicles according to claim 1, characterized in that: The first toothed rod (311) and the second toothed rod (312) are symmetrically and oppositely arranged along the center line of the base (31), and the inside of each of the limiting blocks (36) is provided with an accommodating groove (310) for accommodating the first toothed rod (311) and the second toothed rod (312).

3. The bidirectional synchronous telescopic electric cylinder for electric vehicles according to claim 1, characterized in that: The inside of one end of the limiting block (36) is provided with an arc-shaped groove (318) with an arc that is matched with the linking gear (317), and the edges of the limiting block (36) and the edges of the partition plate (313) are mutually spliced.

4. The bidirectional synchronous telescopic electric cylinder for electric vehicles according to claim 1, characterized in that: The linking gear (317) is located in the arc-shaped groove (318), and one end of the first toothed rod (311) and one end of the second toothed rod (312) are fixedly connected to the groove wall of the arc-shaped groove (318).

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