Telescopic mechanism and car mover

Abstract

This utility model provides a telescopic mechanism and a car transporter, belonging to the field of intelligent parking technology. It includes: a first mounting part, a second mounting part, a telescopic component, and a locking mechanism. The telescopic component is mounted between the first and second mounting parts via a linear guide rail sub-component. The locking mechanism is disposed on either the first or second mounting part and includes a mechanical brake device, which is connected to the linear guide rail sub-component via a transmission mechanism. The telescopic component achieves extension or retraction through the movement of the AGV assembly, eliminating the need for a separate drive mechanism. This simplifies the structure, reduces the number of components, and facilitates the development of ultra-thin and miniaturized AGVs. The locking mechanism positions and locks the telescopic mechanism. The telescopic mechanism provided by this utility model solves the problem that existing telescopic mechanisms require a separate drive device, resulting in complex structures that hinder the development of ultra-thin and miniaturized AGVs.

Description

Technical Field

[0001] This utility model relates to the fields of automobile handling and mechanical automation technology, specifically to a telescopic mechanism and an automobile handling device. Background Technology

[0002] AGVs are car handling robots that utilize advanced navigation technology and intelligent control systems to automatically store and retrieve vehicles. They can transport vehicles from entrances / exits or elevators to parking spaces. Suitable for compact spaces, they effectively utilize every inch of parking lot space through navigation and scheduling systems. Integrating advanced navigation, positioning, and control technologies, they require high-precision sensors and complex algorithms to achieve stable operation and accurate positioning, and have certain requirements regarding the flatness, load-bearing capacity, and stability of the ground.

[0003] Chinese patent document CN110984652B discloses a car handling machine, including: a traction unit, a middle support frame, and a rear support frame. The rear support frame and the middle support frame are connected by a first telescopic mechanism. The first telescopic mechanism is a scissor-type telescopic mechanism with multiple rhombuses formed by several intersecting connecting rods and hinged by pins. The first driving device includes: a first motor, a first lead screw, a first fixed seat, and a first connecting rod. The first motor is fixed to the middle support frame. The driving end of the drive shaft of the first motor is provided with a first driving wheel. The first lead screw is connected to the middle support frame through the first fixed seat and can rotate relative to the first fixed seat. One end of the first lead screw is fixedly provided with a first driven wheel that is driven and connected to the first driving wheel. A first nut that cooperates with the first lead screw is provided on the first connecting rod. The first connecting rod is connected to another hinge point in the first telescopic mechanism that is located on the same diagonal of the rhombus as the hinge point at the first end. The first motor drives the first driven wheel to rotate via the first driving wheel, which in turn drives the first lead screw to rotate relative to the first fixed seat. This, in turn, causes the first connecting rod to slide between the two fixed seats on the first lead screw via the first nut. When the first connecting rod moves its connected hinge point closer to the first hinge point, the first telescopic mechanism shortens, bringing the middle support frame and the rear support frame closer together. When the first connecting rod moves its connected hinge point away from the first hinge point, the first telescopic mechanism extends, moving the middle support frame and the rear support frame further apart. The first driving device drives the first telescopic mechanism to move the middle support frame and the rear support frame closer or further apart, adjusting the distance between the rear support frame and the middle support frame.

[0004] However, in the above structure, the telescopic action of the first telescopic mechanism is controlled by the first drive device through a lead screw transmission, and the telescopic length of the first telescopic mechanism is controlled by the first motor in the first drive device. The above telescopic mechanism requires an independent drive device, which is complex in structure, increases the number of parts, and increases costs. With the market demand for ultra-thin and miniaturized AGVs, it is necessary to develop a telescopic mechanism that does not have an independent drive mechanism. However, for telescopic mechanisms without an independent drive mechanism, the technical problem of how to position and lock the telescopic mechanism after it reaches its telescopic length to adapt to different vehicle wheelbases has not yet been effectively solved. Utility Model Content

[0005] Therefore, the technical problem to be solved by this utility model is to overcome the problem that the telescopic mechanism of AGV in the prior art needs to be equipped with an independent drive device, which leads to complex structure and is not conducive to the development of ultra-thin and miniaturized AGV, so as to provide a telescopic mechanism and a car transporter.

[0006] To solve the above-mentioned technical problems, this utility model provides a telescopic mechanism, including: a first mounting part, a second mounting part, a telescopic component, and a locking mechanism; the telescopic component is disposed between the first mounting part and the second mounting part, a first end of the telescopic component is mounted on the first mounting part via a linear guide rail sub-component, and a second end of the telescopic component is mounted on the second mounting part via the linear guide rail sub-component; the locking mechanism is disposed on the first mounting part or the second mounting part, and the locking mechanism includes a mechanical brake device, which is connected to the linear guide rail sub-component via a transmission mechanism.

[0007] In use, the first and second mounting parts are respectively mounted on different single-sided AGV assemblies. When extension is required, the AGV assembly drives the first and second mounting parts to move away from each other, and the telescopic component is extended through the linear guide sub-assembly. When the required distance is reached, the mechanical brake device of the locking mechanism brakes the linear guide sub-assembly through the transmission mechanism, thereby locking the length of the scissor assembly. When retraction is required, the AGV assembly drives the first and second mounting parts to move closer to each other, and the telescopic component retracts. The telescopic component achieves extension and retraction through the movement of the AGV assembly, eliminating the need for a separate drive device. This simplifies the structure, reduces the number of components in the telescopic mechanism, lowers costs, and facilitates the development of ultra-thin and miniaturized AGVs. Furthermore, the locking mechanism allows for positioning and locking of the telescopic mechanism after the extension length is reached, adapting to different vehicle wheelbases. The telescopic mechanism provided by this invention solves the problem that the telescopic mechanism of existing car transporters requires a separate drive device, resulting in a complex structure that hinders the development of ultra-thin and miniaturized AGVs.

[0008] Optionally, the system also includes a distance sensor, which is disposed on one of the first mounting portion and the second mounting portion, and the mechanical brake device is disposed on the other of the first mounting portion and the second mounting portion. The distance sensor and the mechanical brake device are arranged opposite each other, and the distance sensor is used to detect the distance between the first mounting portion and the second mounting portion. With the above arrangement, the distance sensor can detect the distance between the first mounting portion and the second mounting portion, that is, detect the extension length of the telescopic mechanism. Based on the data detected by the distance sensor, the extension length of the telescopic mechanism can be controlled, thereby enabling the AGV to be adapted to vehicles with different wheelbases. The opposing arrangement of the mechanical brake device and the distance sensor maintains the balance and stability of the telescopic mechanism.

[0009] Optionally, the telescopic assembly includes: two sets of scissor lift assemblies arranged side by side, with a linkage plate between the two sets of scissor lift assemblies; each scissor lift assembly includes multiple sets of connecting rods, which intersect and are hinged together; one connecting rod at the end of each scissor lift assembly is connected to the linear guide sub-assembly, and the other connecting rod at the end of each scissor lift assembly is hinged to the first mounting part or the second mounting part. Through this arrangement, the angle between the two connecting rods changes via the linear guide sub-assembly, achieving the telescopic movement of the scissor lift assembly. The two sets of scissor lift assemblies arranged side by side can move synchronously via the linkage plate, enhancing the stability of the telescopic mechanism.

[0010] Optionally, the upper surface of the scissor lift assembly is provided with a wire channel plate for laying wires. The wire channel plate is arranged in a segmented structure on the surface of the connecting rod. Through the above configuration, the wire channel plate can limit the wires and prevent them from getting stuck between the connecting rods of the scissor lift assembly, thus affecting the telescopic movement of the telescopic mechanism.

[0011] Optionally, the linear guide rail assembly includes: a guide rail, a slider, and a blocking block. The guide rail is disposed on the first mounting portion and the second mounting portion. The slider is slidably disposed on the guide rail and is connected to the telescopic assembly. The blocking block is disposed at the end of the guide rail and forms a limiting blocking engagement with the slider. The transmission mechanism includes: a reducer and a sprocket assembly. The reducer is disposed on the first mounting portion, and its input end is connected to the mechanical brake device. The sprocket assembly is disposed on the first mounting portion and includes: a drive wheel, a tension wheel, and a chain. The drive wheel is disposed at the end of the first mounting portion near the reducer and is connected to the output end of the reducer. The tension wheel is disposed at the end of the first mounting portion away from the reducer. The chain is sleeved on the drive wheel and the tension wheel, and the slider on the first mounting portion is connected to the chain. With the above settings, the slider slides along the guide rail, driving the telescopic component to perform telescopic movements. The blocking block at the end of the guide rail can prevent the slider from sliding off the guide rail. The drive wheel and tension wheel on the first mounting part tension the chain. When the telescopic mechanism reaches the specified telescopic length, the reducer cooperates with the mechanical brake device to lock the slider through chain transmission, thereby locking the telescopic component and preventing the telescopic component from changing its telescopic length during use.

[0012] Optionally, an overtravel limiting mechanism for restricting overtravel compression of the telescopic assembly is further provided between the first mounting portion and the second mounting portion. The overtravel limiting mechanism includes a limiting rod, one end of which is connected to one of the first mounting portion and the second mounting portion. When the telescopic assembly is retracted to its final position, the other end of the limiting rod forms an abutment limiting engagement with the other of the first and second mounting portions. With this configuration, when the telescopic assembly retracts to its shortest distance and continues to shorten due to a malfunction or unexpected situation, the limiting rod forms an abutment limiting engagement with either the second or first mounting portion, preventing further retraction.

[0013] Optionally, the first mounting portion is provided with a first ear plate, and the limiting rod is fixedly mounted on the first ear plate; the second mounting portion is provided with a second ear plate, and the second ear plate is provided with a through hole for the limiting rod to extend into; the limiting rod is provided with a limiting block, and when the telescopic assembly is retracted to its shortest position, the limiting block abuts against the second mounting portion. With the above arrangement, when the telescopic assembly is retracted to its shortest distance, the end of the limiting rod extends into the through hole of the second ear plate, and the limiting block and the second ear plate form an abutting limiting fit, which can prevent it from further shortening.

[0014] Optionally, a limiting pin is provided on the second ear plate, and a groove is provided at the end of the limiting rod; the second mounting part is also provided with a driving device, and the driving end of the driving device is connected to the limiting pin; when the telescopic assembly is retracted to the position, the driving device drives the end of the limiting pin to insert into the groove. With the above configuration, when the telescopic assembly is retracted to its shortest distance, the driving device drives the limiting pin to move towards the limiting rod, and the limiting pin inserts into the groove on the limiting rod, locking the limiting rod and preventing the telescopic assembly from telescopically extending or retracting during use; when it is necessary to adjust the length of the telescopic assembly, the driving device drives the limiting pin to move away from the limiting rod, the limiting pin leaves the groove on the limiting rod, the locking of the limiting rod is released, and the telescopic mechanism can telescopically extend or retract.

[0015] Optionally, the driving device is configured as an electric push rod. One driving device and one limiting pin are each provided on both sides of the limiting rod. Each side of the limiting rod has a groove. The second ear plate has through slots on both sides for the insertion of the limiting pins, and graphite copper sleeves are connected within these slots. A detection switch is installed on the extension path of the electric push rod to detect when it has reached its extension position. With this configuration, the driving device drives the limiting pins through the through slots on the second ear plate, moving them closer to or away from the limiting rod. The grooves on both sides of the limiting rod engage with the limiting pins, locking the limiting rod from both sides and improving stability. The graphite copper sleeves in the through slots reduce frictional damage to the limiting pins and the second ear plate and act as guides. The detection switch detects whether the electric push rod has reached its extension position, ensuring the locking effect of the limiting pins on the limiting rod.

[0016] This utility model provides a car transporter, comprising multiple AGV assemblies and a telescopic mechanism as described in any of the above-described solutions. The telescopic mechanism is disposed between two adjacent AGV assemblies, and a first mounting portion and a second mounting portion of the telescopic mechanism are respectively connected to the two adjacent AGV assemblies. At least one of the two adjacent AGV assemblies is provided with a drive wheel mechanism. Through this arrangement, at least one AGV assembly moves via the drive wheel mechanism, driving the telescopic mechanism to perform telescopic movements, enabling the car transporter to be adapted to vehicles with different wheelbases. Due to the use of the aforementioned telescopic mechanism, it possesses any of the advantages described above. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of one embodiment of the telescopic mechanism provided in this utility model. Figure 2 for Figure 1 A schematic diagram of the scissor drill's extension mechanism; Figure 3 for Figure 1 A schematic diagram of the front of the telescopic mechanism; Figure 4 for Figure 1 An enlarged schematic diagram of part A in the middle; Figure 5 for Figure 1 A cross-sectional schematic diagram; Figure 6 for Figure 1 Enlarged schematic diagram of part B in the middle; Figure 7 This is a schematic diagram of one embodiment of the car transporter provided in this utility model.

[0019] Explanation of reference numerals in the attached figures: 1. First mounting section; 2. Second mounting section; 3. Scissor lift assembly; 31. Linkage plate; 32. Cable tray plate; 4. Linear guide rail assembly; 41. Guide rail; 42. Slider; 43. Blocking block; 5. Distance sensor; 6. Reducer; 61. Mechanical brake device; 7. Sprocket assembly; 71. Drive wheel; 72. Tensioner wheel; 73. Chain; 8. Overtravel compression mechanism; 81. Limit rod; 82. First ear plate; 83. Second ear plate; 84. Limit block; 9. Limit pin; 91. Drive device; 92. Detection switch; 10. AGV assembly. Detailed Implementation

[0020] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0024] This embodiment provides a structure for a telescopic mechanism that can precisely control the amount of telescopic movement, enabling AGVs to adapt to vehicles with different wheelbases.

[0025] like Figure 1 , Figure 2 The diagram illustrates a specific implementation of a telescopic mechanism provided in this embodiment, comprising: a first mounting portion 1, a second mounting portion 2, a telescopic component, and a locking mechanism; the telescopic component is disposed between the first mounting portion 1 and the second mounting portion 2, a first end of the telescopic component is mounted on the first mounting portion 1 via a linear guide rail sub-component 4, and a second end of the telescopic component is mounted on the second mounting portion 2 via the linear guide rail sub-component 4; the locking mechanism is disposed on the first mounting portion 1 or the second mounting portion 2, and the locking mechanism includes a mechanical brake device 61, which is connected to the linear guide rail sub-component 4 via a transmission mechanism.

[0026] In use, the first mounting part 1 and the second mounting part 2 are respectively mounted on different single-sided AGV assemblies 10. When it is necessary to adjust the distance between the two single-sided AGV assemblies 10, such as when the telescopic mechanism needs to be extended, the two single-sided AGV assemblies 10 simultaneously drive their respective first mounting parts 1 and second mounting parts 2 to move away from each other, or one of the single-sided AGV assemblies 10 is kept fixed and the other AGV assembly 10 is driven away to extend the telescopic mechanism. The telescopic component is stretched by the linear guide sub-component 4. When the required distance is reached, the mechanical brake device 61 of the locking mechanism brakes the linear guide sub-component 4 through the transmission mechanism, thereby locking the length of the telescopic component. When it needs to be retracted, the AGV assembly 10 drives the first mounting part 1 and / or the second mounting part 2 to move closer to each other, that is, the two AGV assemblies 10 on both sides drive each other closer to each other, or keep one AGV assembly 10 fixed and drive the other AGV assembly 10 to move to shorten the distance between the two AGV assemblies 10, thereby driving the telescopic component to retract. The telescopic component achieves stretching and retraction through the movement of the AGV assembly 10, without the need for an independent drive mechanism. The structure is simple, which can reduce the number of components in the telescopic mechanism, reduce costs, and is conducive to the development of ultra-thin and miniaturized AGVs. At the same time, by setting the locking mechanism, the telescopic mechanism can be positioned and locked after the telescopic length is in place to adapt to different vehicle wheelbases. The telescopic mechanism provided in this embodiment solves the problem that the telescopic mechanism of the existing car transporter needs to be configured with an independent drive mechanism, which leads to complex structure and is not conducive to the development of ultra-thin and miniaturized AGVs.

[0027] Specifically, when both the first mounting part 1 and the second mounting part 2 of the AGV assembly 10 are equipped with drive wheel mechanisms, both the first mounting part 1 and the second mounting part 2 can be movable. Of course, one side of the AGV assembly 10 can also be kept stationary and driven by the other side of the AGV assembly 10. When one of the AGV assemblies 10 connected to the first mounting part 1 and the second mounting part 2 is equipped with a drive wheel mechanism, the first mounting part 1 or the second mounting part 2 connected to the AGV assembly 10 with the drive mechanism is a movable part, and the other is a fixed part. The AGV assembly 10 connected to the fixed part is not in the correct position. The drive wheel of the AGV assembly 10 installed on the movable part drives the AGV assembly 10 on that side to move relative to the fixed part, causing the telescopic mechanism to extend or retract, thereby adjusting the distance between the two AGV assemblies 10 to adapt to vehicles with different wheelbases.

[0028] like Figure 1As shown, the telescopic mechanism provided in this embodiment also includes a distance sensor 5. The distance sensor 5 is disposed on one of the first mounting part 1 and the second mounting part 2, and the mechanical brake device 61 is disposed on the other of the first mounting part 1 and the second mounting part 2. The distance sensor 5 and the mechanical brake device 61 are arranged opposite each other, and the distance sensor 5 is used to detect the distance between the first mounting part 1 and the second mounting part 2. The distance sensor 5 can detect the distance between the first mounting part 1 and the second mounting part 2, that is, detect the telescopic length of the telescopic mechanism. Based on the data detected by the distance sensor 5, the telescopic length of the telescopic mechanism can be controlled, so that the AGV can be adapted to vehicles with different wheelbases. The mechanical brake device 61 and the distance sensor 5 are arranged opposite each other, which can maintain the balance and stability of the telescopic mechanism. In addition, as an alternative embodiment, the distance sensor 5 and the mechanical brake device 61 can also be disposed on the first mounting part 1 or the second mounting part 2 simultaneously.

[0029] Specifically, the distance sensor 5 is configured as a laser distance sensor 5.

[0030] like Figure 1-3 As shown, in the telescopic mechanism provided in this embodiment, the telescopic component includes: two sets of scissor assemblies 3 arranged side by side, with a linkage plate 31 between the two sets of scissor assemblies 3; each scissor assembly includes multiple sets of connecting rods, which intersect and are hinged together. One connecting rod at the end of each scissor assembly 3 is connected to the linear guide sub-assembly 4, and the other connecting rod at the end of each scissor assembly 3 is hinged to the first mounting part 1 or the second mounting part 2. The linear guide sub-assembly 4 changes the included angle between the two connecting rods, thereby realizing the telescopic movement of the scissor assembly 3. The two sets of scissor assemblies 3 arranged side by side can achieve synchronous movement through the linkage plate 31, enhancing the stability of the telescopic mechanism. Alternatively, as an alternative implementation, only one set of scissor assemblies 3 can be provided.

[0031] Specifically, the linkage plate 31 is preferably located in the middle of the scissor lift assembly 3, and the two sets of scissor lift assemblies 3 are arranged side by side along a direction perpendicular to the first mounting part 1 and the second mounting part 2.

[0032] like Figure 3 As shown, in the telescopic mechanism provided in this embodiment, the upper end face of the scissor lift assembly 3 is provided with a wire groove plate 32. The wire groove plate 32 is used to lay wires, and the wire groove plate 32 is arranged in a segmented structure on the surface of the connecting rod. The wire groove plate 32 can limit the wires and prevent the wires from getting stuck between the connecting rods of the scissor lift assembly 3, thus affecting the telescopic movement of the telescopic mechanism.

[0033] like Figure 1 , Figure 4 As shown, in the telescopic mechanism of this embodiment, the linear guide rail assembly 4 includes: a guide rail 41, a slider 42, and a blocking block 43. The guide rail 41 is disposed on the first mounting part 1 and the second mounting part 2; the slider 42 is slidably disposed on the guide rail 41 and is connected to the telescopic assembly; the blocking block 43 is disposed at the end of the guide rail 41, and the blocking block 43 forms a blocking and limiting cooperation with the slider 42; the transmission mechanism includes: a reducer 6 and a sprocket assembly 7. The reducer 6 is disposed on the first mounting part 1, and the reducer 6... The input end is connected to the mechanical brake device 61; the sprocket assembly 7 is disposed on the first mounting part 1, and the sprocket assembly includes: a drive wheel 71, a tension wheel 72 and a chain 73. The drive wheel 71 is disposed at one end of the first mounting part 1 near the reducer 6 and is connected to the output end of the reducer 6. The tension wheel 72 is disposed at one end of the first mounting part 1 away from the reducer 6. The chain 73 is sleeved on the drive wheel 71 and the tension wheel 72. The slider 42 on the first mounting part 1 is connected to the chain 73. The slider 42 slides along the guide rail 41, driving the telescopic assembly to extend and retract. The blocking block 43 at the end of the guide rail 41 prevents the slider 42 from sliding off the guide rail 41. The drive wheel 71 and the tension wheel 72 on the first mounting part 1 tension the chain 73. When the extension length of the telescopic mechanism reaches the specified requirement, the reducer 6 cooperates with the mechanical brake device 61 to lock the slider 42 through the chain 73, thereby locking the telescopic assembly and preventing changes in the extension length of the telescopic assembly during use. Alternatively, as an alternative embodiment, the transmission assembly can also be configured as a belt drive structure.

[0034] Specifically, the connecting rod of the scissor lift assembly 3 is hinged to the slider 42.

[0035] Specifically, the first mounting part 1 is provided with a mounting base for mounting the reducer 6.

[0036] like Figure 1 , Figure 5As shown, in the telescopic mechanism provided in this embodiment, an overtravel limiting mechanism for limiting the overtravel compression of the telescopic component is further provided between the first mounting part 1 and the second mounting part 2. The overtravel limiting mechanism includes a limiting rod 81, one end of which is connected to one of the first mounting part 1 and the second mounting part 2. When the telescopic component is retracted to its position, the other end of the limiting rod 81 forms an abutting limiting engagement with the other of the first mounting part 1 and the second mounting part 2. When the telescopic component retracts to its shortest distance and continues to shorten due to a malfunction or unexpected situation, the limiting rod 81 forms an abutting limiting engagement with the second mounting part 2 or the first mounting part 1, which can prevent it from continuing to retract and causing overtravel compression. Alternatively, as an alternative implementation, the overtravel limiting mechanism can be omitted. When the telescopic component retracts to its shortest distance, the telescopic component is locked by linkage between the distance sensor 5 and the locking mechanism.

[0037] like Figure 1 , Figure 5 As shown, in the telescopic mechanism provided in this embodiment, the first mounting part 1 is provided with a first ear plate 82, and the limiting rod 81 is fixedly mounted on the first ear plate 82; the second mounting part 2 is provided with a second ear plate 83, and the second ear plate 83 is provided with a through hole for the limiting rod 81 to extend into; the limiting rod 81 is provided with a limiting block 84, and when the telescopic assembly is retracted to the position, the limiting block 84 abuts against the second mounting part 2. When the telescopic assembly is retracted to the shortest distance, the end of the limiting rod 81 extends into the through hole of the second ear plate 83, and the limiting block 84 forms an abutting limiting fit with the second ear plate 83, which can prevent it from continuing to shorten and causing over-travel compression. In addition, as an alternative embodiment, the first ear plate 82 and the second ear plate 83 can both be omitted, and the limiting rod 81 is directly fixedly mounted on the first mounting part 1, and the end of the limiting rod 81 directly forms an abutting limiting fit with the second mounting part 2.

[0038] Specifically, the telescopic assembly includes a scissor lift assembly 3. At one end of the scissor lift assembly 3 near the first mounting portion 1, one connecting rod is hinged to the first ear plate 82, and the other connecting rod is hinged to the slider 42. At one end of the scissor lift assembly 3 near the second mounting portion 2, one connecting rod is hinged to the second ear plate 83, and the other connecting rod is hinged to the slider 42.

[0039] like Figure 1 , Figure 5 , Figure 6As shown, in the telescopic mechanism provided in this embodiment, a limiting pin 9 is provided on the second ear plate 83, and a groove is provided at the end of the limiting rod 81; the second mounting part 2 is also provided with a driving device 91, and the driving end of the driving device 91 is connected to the limiting pin 9; when the telescopic assembly is retracted to the position, the driving device 91 drives the end of the limiting pin 9 to insert into the groove. When the telescopic assembly is retracted to the shortest distance, the driving device 91 drives the limiting pin 9 to move toward the limiting rod 81, and the limiting pin 9 inserts into the groove on the limiting rod 81 to lock the limiting rod 81, preventing the telescopic assembly from telescopically extending or retracting during use; when it is necessary to adjust the length of the telescopic assembly, the driving device 91 drives the limiting pin 9 to move away from the limiting rod 81, and the limiting pin 9 leaves the groove on the limiting rod 81, releasing the lock on the limiting rod 81, and the telescopic mechanism can telescopically extend or retract. Alternatively, as an alternative implementation, the limiting pin 9 can be omitted, and the locking mechanism is still used to lock the telescopic component when it is retracted to the correct position.

[0040] like Figure 1 , Figure 5 , Figure 6 As shown, in the telescopic mechanism provided in this embodiment, the driving device 91 is configured as an electric push rod. One driving device 91 and one limiting pin 9 are each provided on both sides of the limiting rod 81. Each side of the limiting rod 81 has a groove. The second ear plate 83 has through slots on both sides for the insertion of the limiting pin 9, and a graphite copper sleeve is connected within each through slot. A detection switch 92 is installed on the telescopic path of the electric push rod to detect whether it has reached the desired extension position. The driving device 91 drives the limiting pin 9 through the through slots on the second ear plate 83 to approach or move away from the limiting rod 81. The grooves on both sides of the limiting rod 81 cooperate with the limiting pin 9, enabling locking of the limiting rod 81 from both sides and improving stability. The graphite copper sleeves in the through slots reduce frictional damage between the limiting pin 9 and the second ear plate 83 and serve as a guide. The detection switch 92 detects whether the electric push rod has reached the desired extension position, ensuring the locking effect of the limiting pin 9 on the limiting rod 81. Alternatively, as an alternative implementation, the driving device 91 and the limiting pin 9 may be provided only on one side of the limiting rod 81, the limiting rod 81 may have only one groove, and the second ear plate 83 may have only one through groove on one side.

[0041] How to use: like Figure 1As shown, in this embodiment, the telescopic mechanism is used such that the first mounting part 1 and the second mounting part 2 are respectively mounted on different single-sided AGV assemblies 10. When extension is required, the AGV assembly 10 drives the first mounting part 1 and the second mounting part 2 to move away from each other, and the scissor lift assembly 3 is extended through the linear guide rail sub-assembly 4. When the required distance is reached, the mechanical brake device 61 of the locking mechanism brakes the linear guide rail sub-assembly 4 through the transmission mechanism, thereby locking the length of the scissor lift assembly 3. When retraction is required, the AGV assembly 10 drives the first mounting part 1 and the second mounting part 2 to move closer to each other, and the scissor lift assembly 3 retracts.

[0042] In addition, such as Figure 7 As shown, this utility model provides a car transporter, including multiple AGV assemblies 10 and the telescopic mechanism described in the above embodiment. The telescopic mechanism is disposed between two adjacent AGV assemblies 10. The first mounting part 1 and the second mounting part 2 of the telescopic mechanism are respectively connected to the two adjacent AGV assemblies 10. At least one of the two adjacent AGV assemblies 10 is provided with a drive wheel mechanism. At least one AGV assembly 10 moves through the drive wheel mechanism, driving the telescopic mechanism to perform telescopic actions, so that the car transporter can be adapted to vehicles with different wheelbases.

[0043] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this utility model.

Claims

1. A telescopic mechanism, characterized in that, include: First installation section (1); Second installation section (2); A telescopic assembly is disposed between the first mounting part (1) and the second mounting part (2). The first end of the telescopic assembly is mounted on the first mounting part (1) via a linear guide rail sub-assembly (4), and the second end of the telescopic assembly is mounted on the second mounting part (2) via a linear guide rail sub-assembly (4). A locking mechanism is provided on the first mounting part (1) or the second mounting part (2). The locking mechanism includes a mechanical brake device (61), which is connected to the linear guide rail assembly (4) via a transmission mechanism.

2. The telescopic mechanism according to claim 1, characterized in that, It also includes a distance sensor (5), which is disposed on one of the first mounting part (1) and the second mounting part (2), and the mechanical brake device (61) is disposed on the other of the first mounting part (1) and the second mounting part (2). The distance sensor (5) is disposed opposite to the mechanical brake device (61), and the distance sensor (5) is used to detect the distance between the first mounting part (1) and the second mounting part (2).

3. The telescopic mechanism according to claim 1, characterized in that, The telescopic component includes: Two sets of scissor lift assemblies (3) are arranged side by side, and a linkage plate (31) is provided between the two sets of scissor lift assemblies (3). The scissor lift assembly (3) includes multiple sets of connecting rods, which are intersected and hinged together. One connecting rod at the end of the scissor lift assembly (3) is connected to the linear guide sub-assembly (4), and the other connecting rod at the end of the scissor lift assembly (3) is hinged to the first mounting part (1) or the second mounting part (2).

4. The telescopic mechanism according to claim 3, characterized in that, The scissor lift assembly (3) is provided with a wire channel plate (32), which is used to lay wires. The wire channel plate (32) is arranged in a segmented structure on the surface of the connecting rod.

5. The telescopic mechanism according to claim 1, characterized in that, The linear guide assembly (4) includes: Guide rail (41) is provided on the first mounting part (1) and the second mounting part (2); A slider (42) is slidably mounted on the guide rail (41), and the slider (42) is connected to the telescopic assembly; A blocking block (43) is provided at the end of the guide rail (41), and the blocking block (43) and the slider (42) form a limiting blocking cooperation; The transmission mechanism includes: A speed reducer (6) is mounted on the first mounting part (1), and the input end of the speed reducer (6) is connected to the mechanical brake device (61); A sprocket assembly (7) is disposed on the first mounting part (1). The sprocket assembly includes a drive wheel (71), a tension wheel (72), and a chain (73). The drive wheel (71) is disposed at one end of the first mounting part (1) near the reducer (6). The drive wheel (71) is connected to the output end of the reducer (6). The tension wheel (72) is disposed at one end of the first mounting part (1) away from the reducer (6). The chain (73) is sleeved on the drive wheel (71) and the tension wheel (72). The slider (42) on the first mounting part (1) is connected to the chain (73).

6. The telescopic mechanism according to any one of claims 1-5, characterized in that, An overtravel limit mechanism for limiting the overtravel compression of the telescopic component is also provided between the first mounting part (1) and the second mounting part (2); The overtravel limiting mechanism includes a limiting rod (81), one end of which is connected to one of the first mounting part (1) and the second mounting part (2). When the telescopic assembly is retracted into place, the other end of the limiting rod (81) forms an abutment limiting engagement with the other of the first mounting part (1) and the second mounting part (2).

7. The telescopic mechanism according to claim 6, characterized in that, The first mounting part (1) is provided with a first ear plate (82), and the limiting rod (81) is fixedly mounted on the first ear plate (82); The second mounting part (2) is provided with a second ear plate (83), and the second ear plate (83) is provided with a through hole for the limiting rod (81) to extend into; A limit block (84) is provided on the limit rod (81). When the telescopic component is retracted into place, the limit block (84) abuts against the second mounting part (2).

8. The telescopic mechanism according to claim 7, characterized in that, The second ear plate (83) is provided with a limiting pin (9), and the end of the limiting rod (81) is provided with a groove; The second mounting part (2) is also provided with a driving device (91), the driving end of which is connected to the limiting pin (9); When the telescopic component is retracted into place, the drive device (91) drives the end of the limiting pin (9) to insert into the groove.

9. The telescopic mechanism according to claim 8, characterized in that, The driving device (91) is configured as an electric push rod. The driving device (91) and the limiting pin (9) are provided on both sides of the limiting rod (81). A groove is provided on both sides of the limiting rod (81). The second ear plate (83) has through slots on both sides for the insertion of the limiting pin (9). A graphite copper sleeve is connected in the through slot. A detection switch (92) is installed on the extension path of the electric push rod to detect when the electric push rod has extended to the correct position.

10. A car transporter, characterized in that, The device includes multiple AGV assemblies (10) and a telescopic mechanism as described in any one of claims 1-9, wherein the telescopic mechanism is disposed between two adjacent AGV assemblies (10), and the first mounting part (1) and the second mounting part (2) of the telescopic mechanism are respectively connected to the two adjacent AGV assemblies (10), and at least one of the two adjacent AGV assemblies (10) is provided with a drive wheel mechanism.

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