Bidirectional telescopic module mechanism

Abstract

The utility model belongs to the technical field of product carrying, and particularly relates to a two-way telescopic module mechanism which comprises a fixed base plate, a first-stage sliding plate and a second-stage sliding plate which are sequentially arranged from back to front and are parallel to one another, and further comprises a power transmission unit connected between the fixed base plate and the first-stage sliding plate, and a second-stage sliding plate connected between the first-stage sliding plate and the second-stage sliding plate. The first-stage belt unit is connected between the fixed base plate and the second-stage sliding plate and penetrates through the left end of the first-stage sliding plate; the second-stage belt unit is arranged below the first-stage belt unit in parallel, connected between the fixed base plate and the second-stage sliding plate and arranged at the right end of the first-stage sliding plate in a penetrating mode; the first-stage sliding plate and the second-stage sliding plate can extend and retract step by step relative to the fixed base plate under the synergistic effect of the power transmission unit, the first-stage belt unit and the second-stage belt unit. The movable feeding radius can be conveniently changed to achieve circulation of products, the structure is compact, control is easy, the action response speed is high, and the large-span product circulation device is suitable for large-span product circulation operation.

Description

Technical Field

[0001] The utility model belongs to the technical field of product handling, in particular to a bidirectional telescopic module mechanism. Background Art

[0002] After the products are formed and packaged, various transportation operations are often required to meet various operational needs. With the increasing popularity of automated equipment, it is often necessary to use a feeding mechanism to perform translational motion to move the products to the required workstation.

[0003] In existing technologies, the working radius of a feeder mechanism is directly determined by its length, which limits its applicability. This makes it particularly difficult to adapt to large-scale scenarios. For example, when a product line requires a redesign or the relative positions of processing stations change, the working radius of the feeder mechanism needs to be extended accordingly. In this case, since the feeder mechanism length is fixed, the extended feeder mechanism can be intelligently replaced. This modification is time-consuming and labor-intensive, increasing waiting times on the production line. Furthermore, remaking a new feeder mechanism requires significant material and labor costs. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a bidirectional telescopic module mechanism for solving the technical problem that the feeding mechanism in the prior art is not suitable for large-span translation operations when transferring products.

[0005] To achieve the above-mentioned purpose and other related purposes, the technical solution of this utility model is as follows:

[0006] A bidirectional telescopic module mechanism comprises: a fixed base plate, a primary sliding plate and a secondary sliding plate arranged in sequence from back to front and parallel to each other, and further comprising:

[0007] A power transmission unit connected between the fixed base plate and the primary sliding plate;

[0008] a primary belt unit connected between the fixed base plate and the secondary sliding plate and passing through the left end of the primary sliding plate;

[0009] a secondary belt unit, arranged parallel to and below the primary belt unit, connected between the fixed base plate and the secondary sliding plate, and passing through the right end of the primary sliding plate;

[0010] The primary sliding plate and the secondary sliding plate can extend and retract step by step relative to the fixed base plate under the coordinated action of the power transmission unit, the primary belt unit and the secondary belt unit.

[0011] Optionally, the power transmission unit includes a drive motor and a rack and pinion assembly, the drive motor is connected to the fixed base plate, the rack and pinion assembly includes a rack, a driving gear and a driven gear set, the driving gear is connected to the driving end of the drive motor, and the driving gear is meshed with the driven gear set, and the rack is arranged on the primary sliding plate and meshed with the driven gear set.

[0012] Optionally, the driven gear set includes multiple groups of coaxially arranged first gears and second gears arranged along the direction of the rack and connecting gears meshing between adjacent first gears, wherein one of the first gears is meshed with the driving gear, and each second gear is configured to mesh with the rack.

[0013] Optionally, the primary belt unit includes a first synchronous belt and a first synchronous wheel, the two ends of the first synchronous belt are respectively connected to the fixed base plate and the secondary sliding plate, the first synchronous wheel is arranged at the left end of the primary sliding plate, and the first synchronous belt is installed on the first synchronous wheel.

[0014] Optionally, the primary belt unit also includes a first front pressure block and a first rear pressure block for fixing the two ends of the first synchronous belt, the first front pressure block is arranged at the right end of the fixed base plate, and the first rear pressure block is arranged at the right end of the secondary sliding plate.

[0015] Optionally, the secondary belt unit includes a second synchronous belt and a second synchronous wheel, the second synchronous belt is parallel to the first synchronous belt, the two ends of the second synchronous belt are respectively connected to the fixed base plate and the secondary sliding plate, the second synchronous wheel is arranged at the right end of the primary sliding plate, and the second synchronous belt is installed on the second synchronous wheel.

[0016] Optionally, the secondary belt unit further includes a second front pressure block and a second rear pressure block for fixing both ends of the second synchronous belt, the second front pressure block is arranged at the left end of the fixed base plate, and the second rear pressure block is arranged at the left end of the secondary sliding plate.

[0017] Optionally, the front side of the fixed base plate is provided with two upper and lower rows of first limiting grooves, the notches of the first limiting grooves face the primary sliding plate, and the back side of the primary sliding plate is provided with two upper and lower rows of multiple first limiting wheels, and the first limiting wheels are adapted to the corresponding first limiting grooves; the front side of the primary sliding plate is provided with two upper and lower rows of second limiting grooves, the notches of the second limiting grooves face the secondary sliding plate, and the back side of the secondary sliding plate is provided with two upper and lower rows of multiple second limiting wheels, and the second limiting wheels are adapted to the corresponding second limiting grooves.

[0018] Optionally, the top and bottom of the fixed base plate are both provided with a first positioning groove, and the notch of the first positioning groove at the top is arranged opposite to the notch of the first positioning groove at the bottom; the top and bottom of the secondary sliding plate are both provided with a second positioning groove, and the notch of the second positioning groove at the top is arranged opposite to the notch of the second positioning groove at the bottom; the top and bottom of the primary sliding plate are both provided with two rows of front and rear positioning wheels, and the two rows of positioning wheels are respectively adapted to the first positioning groove and the second positioning groove.

[0019] Optionally, the front side of the primary sliding plate is provided with first limit blocks located at the left and right ends, and the back side of the secondary sliding plate is provided with second limit blocks located at the left and right ends, and one of the second limit blocks is located between the two first limit blocks.

[0020] As described above, the bidirectional telescopic module mechanism of the present invention has the following beneficial effects:

[0021] The products to be transferred are carried by the secondary sliding plate. Through the coordinated action of the power transmission unit, the primary belt unit and the secondary belt unit, the primary sliding plate and the secondary sliding plate can be driven to extend step by step in sequence to realize the flow of products. When the bidirectional telescopic module mechanism retracts, the moving feeding radius can be changed by simply starting the power unit in reverse. The bidirectional telescopic module mechanism has a compact structure, is easy to control, and has a fast action response speed, and is suitable for large-span product flow operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The overall structure of the bidirectional telescopic module mechanism of the embodiment of the utility model is shown as follows Figure 1 (positive);

[0023] Figure 2 The overall structure of the bidirectional telescopic module mechanism of the embodiment of the utility model is shown as follows Figure 2 (backwards);

[0024] Figure 3 The overall structure of the bidirectional telescopic module mechanism of the embodiment of the utility model is shown as follows Figure 3 (backwards);

[0025] Figure 4 This is a schematic diagram of the side structure of the bidirectional telescopic module mechanism of the embodiment of the utility model. Figure 1 ;

[0026] Figure 5 This is a schematic diagram of the side structure of the bidirectional telescopic module mechanism of the embodiment of the utility model. Figure 2 ;

[0027] Figure 6 The structure of the fixed base plate of the embodiment of the utility model is shown as follows Figure 1 (positive);

[0028] Figure 7 The structure of the fixed base plate of the embodiment of the utility model is shown as follows Figure 2 (backwards);

[0029] Figure 8 The structure of the fixed base plate of the embodiment of the utility model is shown as follows Figure 3 (backwards);

[0030] Figure 9 The structure diagram of the first-level sliding plate of the embodiment of the utility model is as follows Figure 1 (positive);

[0031] Figure 10 The structure diagram of the first-level sliding plate of the embodiment of the utility model is as follows Figure 2 (backwards);

[0032] Figure 11 The structure of the secondary sliding plate of the embodiment of the utility model is shown as follows Figure 1 (positive);

[0033] Figure 12 The structure of the secondary sliding plate of the embodiment of the utility model is shown as follows Figure 2 (backwards).

[0034] Description of Reference Numerals

[0035] 1-fixed base plate; 11-first limiting groove; 12-first positioning groove;

[0036] 2-first sliding plate; 21-first limiting wheel; 22-second limiting groove; 23-positioning wheel; 24-first limiting block;

[0037] 3-secondary sliding plate; 31-second limiting wheel; 32-second positioning groove; 33-second limiting block;

[0038] 4-power transmission unit; 41-drive motor; 42-rack; 43-driving gear; 44-driven gear set; 44a-first gear; 44b-second gear; 44c-connecting gear;

[0039] 5-first-stage belt unit; 51-first synchronous belt; 52-first synchronous pulley; 53-first front pressure block; 54-first rear pressure block;

[0040] 6-secondary belt unit; 61-second synchronous belt; 62-second synchronous wheel; 63-second front pressure block; 64-second rear pressure block. DETAILED DESCRIPTION

[0041] The following describes the implementation of the present invention using specific embodiments. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details herein may be modified or altered based on different perspectives and applications without departing from the spirit of the present invention.

[0042] It should be noted that the diagrams provided in this embodiment are only used to illustrate the basic concept of the present invention. Therefore, the diagrams only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. The form, quantity and proportion of each component in actual implementation can be changed at will, and the layout of the components may be more complex. It should be noted that the structures, proportions, sizes, etc. shown in the drawings of this specification are only used to match the content disclosed in the specification for people familiar with this technology to understand and read. They are not used to limit the conditions for the implementation of the present invention and therefore have no technical significance. Any modification of the structure, change in the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and purpose of the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships should also be regarded as the scope of implementation of the present invention without substantially changing the technical content.

[0043] In order to describe the present invention in detail, a bidirectional telescopic module mechanism of the present invention is specifically described below:

[0044] Please combine Figures 1 to 5 As shown, the utility model provides a bidirectional telescopic module mechanism, comprising: a fixed base plate 1, a primary sliding plate 2 and a secondary sliding plate 3 arranged in sequence from back to front and parallel to each other, and also comprising: a power transmission unit 4, connected between the fixed base plate 1 and the primary sliding plate 2; a primary belt unit 5, connected between the fixed base plate 1 and the secondary sliding plate 3, and passed through the left end of the primary sliding plate 2; a secondary belt unit 6, arranged parallel to the bottom of the primary belt unit 5, connected between the fixed base plate 1 and the secondary sliding plate 3, and passed through the right end of the primary sliding plate 2; the primary sliding plate 2 and the secondary sliding plate 3 can perform step-by-step extension and retraction actions relative to the fixed base plate 1 under the coordinated action of the power transmission unit 4, the primary belt unit 5 and the secondary belt unit 6.

[0045] Specifically, the fixed base plate 1 is used to connect with external automation equipment, and the secondary sliding plate 3 is used to carry the products to be transferred (not shown in the figure); the primary sliding plate 2 can slide directionally in the left and right directions relative to the fixed base plate 1, and the secondary sliding plate 3 can slide directionally in the left and right directions relative to the primary sliding plate 2; under the premise that the fixed base plate 1 is fixed, through the coordinated action of the power transmission unit 4, the primary belt unit 5 and the secondary belt unit 6, the primary sliding plate 2 and the secondary sliding plate 3 can be driven to extend or retract step by step in sequence, thereby realizing the circulation of the products.

[0046] Its operating principle is as follows: Through the forward rotation of the power transmission unit 4, and the coordinated action of the primary belt unit 5 and the secondary belt unit 6, the primary and secondary sliding plates 2 and 3 are driven to extend in sequence; through the reverse rotation of the power transmission unit 4, and the coordinated action of the primary and secondary belt units 5 and 6, the primary and secondary sliding plates 2 and 3 are driven to retract in sequence. This step-by-step motion design makes the entire mechanism more flexible and versatile, and the extension length of the sliding plates can be adjusted according to actual needs to meet different work requirements. This allows for convenient changes in the moving feed radius. Its compact structure, easy control, and fast action response make it suitable for large-span product flow operations.

[0047] In some embodiments, the power transmission unit 4 includes a drive motor 41 and a gear rack 42 assembly, the drive motor 41 is connected to the fixed base plate 1, the gear rack 42 assembly includes a rack 42, a driving gear 43 and a driven gear set 44, the driving gear 43 is connected to the driving end of the drive motor 41, and the driving gear 43 is meshed with the driven gear set 44, the rack 42 is arranged on the primary sliding plate 2 and meshed with the driven gear set 44. Specifically, the drive motor 41 is connected to the back side of the fixed base plate 1 via a mounting bracket, with the axial direction of the drive motor 41 perpendicular to the fixed base plate 1. A receiving groove extending in the sliding direction is provided in the middle of the fixed base plate 1 for mounting the driven gear set 44. The rack 42 is disposed on the back side of the primary sliding plate 2 and extends in the sliding direction. The drive motor 41 drives the driving gear 43 to rotate, which in turn drives the driven gear set 44 to rotate. The meshing of the driven gear set 44 with the rack 42 drives the primary sliding plate 2 to move. The rack and pinion 42 assembly offers the advantages of high power transmission, high efficiency, a constant transmission ratio, a long lifespan, stable operation, and ease of maintenance.

[0048] See Figure 3 and Figure 6In the above embodiment, the driven gear set 44 includes multiple sets of coaxially arranged first gears 44a and second gears 44b arranged along the direction of the rack 42, and connecting gears 44c meshing between adjacent first gears 44a. One of the first gears 44a meshes with the driving gear 43, and each of the second gears 44b is configured to mesh with the rack 42. Specifically, the coaxially arranged first gears 44a and second gears 44b can rotate synchronously, and the adjacent connecting gears 44c can rotate synchronously with the first gear 44a. The driving motor 41 drives the driving gear 43 to rotate, and the driving gear 43 drives the first gear 44a meshing with it to rotate, and drives each of the first gears 44a and each of the connecting gears 44c to rotate synchronously, and at the same time drives the second gears 44b coaxial with the first gear 44a to rotate. Each of the second gears 44b, in cooperation with the rack 42, pushes the primary sliding plate 2 to move.

[0049] See Figure 4 and Figure 5 In the above embodiment, the primary belt unit 5 includes a first synchronous belt 51 and a first synchronous pulley 52. The two ends of the first synchronous belt 51 are respectively connected to the fixed base plate 1 and the secondary sliding plate 3. The first synchronous pulley 52 is provided at the left end of the primary sliding plate 2, and the first synchronous belt 51 is mounted on the first synchronous pulley 52. Specifically, the two ends of the first synchronous belt 51 are respectively connected to the front right end of the fixed base plate 1 and the back right end of the secondary sliding plate 3, and pass through the left end of the primary sliding plate 2. The synchronous belt drive can operate stably under various working conditions, including high speed, heavy load, and frequent start / stop, so that the primary belt unit 5 can adapt to different working environments and working requirements. It has a simple structure, is easy to manufacture and implement, and has a fast power response speed.

[0050] Continue reading Figure 4 and Figure 5 As can be understood, the primary belt unit 5 also includes a first front pressure block 53 and a first rear pressure block 54 for securing the two ends of the first synchronous belt 51. The first front pressure block 53 is disposed at the right end of the fixed base plate 1, and the first rear pressure block 54 is disposed at the right end of the secondary sliding plate 3. Specifically, the first front pressure block 53 is located at the front right end of the fixed base plate 1, and the first rear pressure block 54 is located at the back right end of the secondary sliding plate 3. The use of the first front pressure block 53 and the first rear pressure block 54 to respectively secure the two ends of the first synchronous belt 51 can help reduce assembly difficulty and facilitate subsequent rapid replacement of the first synchronous belt 51.

[0051] See Figure 4 and Figure 5In some embodiments, the secondary belt unit 6 includes a second synchronous belt 61 and a second synchronous pulley 62. The second synchronous belt 61 is parallel to the first synchronous belt 51. Its ends are connected to the fixed base plate 1 and the secondary sliding plate 3, respectively. The second synchronous pulley 62 is located at the right end of the primary sliding plate 2, and the second synchronous belt 61 is mounted on the second synchronous pulley 62. Specifically, the second synchronous belt 61 is connected to the front left end of the fixed base plate 1 and the back left end of the secondary sliding plate 3, respectively, and passes through the right end of the primary sliding plate 2. The secondary belt unit 6 has a simple structure, is easy to manufacture and implement, and has a fast power response speed. Through the coordinated action of the secondary belt unit 6 and the primary belt unit 5, the secondary sliding plate 3 can be driven to the left when the primary sliding plate 2 moves leftward, and the secondary sliding plate 3 can be driven to the right when the primary sliding plate 2 moves rightward, thereby achieving a step-by-step extension or retraction of the primary and secondary sliding plates 2 and 3.

[0052] Continue reading Figure 4 and Figure 5 As can be understood, the secondary belt unit 6 also includes a second front pressure block 63 and a second rear pressure block 64 for securing the two ends of the second synchronous belt 61. The second front pressure block 63 is disposed at the left end of the fixed base plate 1, and the second rear pressure block 64 is disposed at the left end of the secondary sliding plate 3. Specifically, the second front pressure block 63 is located at the front left end of the fixed base plate 1, and the first rear pressure block 54 is located at the back left end of the secondary sliding plate 3. The use of the second front pressure block 63 and the second rear pressure block 64 to respectively secure the two ends of the second synchronous belt 61 can help reduce assembly difficulty and facilitate subsequent rapid replacement of the second synchronous belt 61.

[0053] See Figures 6 to 12In some embodiments, the front side of the fixed base plate 1 is provided with two upper and lower rows of first limiting grooves 11, the notches of the first limiting grooves 11 face the primary sliding plate 2, and the back side of the primary sliding plate 2 is provided with two upper and lower rows of multiple first limiting wheels 21, and the first limiting wheels 21 are adapted to the corresponding first limiting grooves 11; the front side of the primary sliding plate 2 is provided with two upper and lower rows of second limiting grooves 22, the notches of the second limiting grooves 22 face the secondary sliding plate 3, and the back side of the secondary sliding plate 3 is provided with two upper and lower rows of multiple second limiting wheels 31, and the second limiting wheels 31 are adapted to the corresponding second limiting grooves 22. Specifically, the axes of the first limiting wheels 21 and the second limiting wheels 31 are perpendicular to the plane of the fixed base plate 1. The first limiting groove 11 is provided to mate with the first limiting wheel 21, allowing the primary sliding plate 2 to slide directionally in the left-right direction relative to the fixed base plate 1, acting as a sliding guide and improving its sliding stability. The second limiting groove 22 is provided to mate with the second limiting wheel 31, allowing the secondary sliding plate 3 to slide directionally in the left-right direction relative to the primary sliding plate 2, acting as a sliding guide and improving its sliding stability. The upper and lower rows of limiting wheels help ensure limiting balance during sliding.

[0054] Continue reading Figures 6 to 12 In the above embodiment, the top and bottom of the fixed base plate 1 are both provided with a first positioning groove 12, and the notch of the first positioning groove 12 at the top is arranged opposite to the notch of the first positioning groove 12 at the bottom. The top and bottom of the secondary sliding plate 3 are both provided with a second positioning groove 32, and the notch of the second positioning groove 32 at the top is arranged opposite to the notch of the second positioning groove 32 at the bottom. The top and bottom of the primary sliding plate 2 are both provided with two rows of front and rear positioning wheels 23, and the two rows of positioning wheels 23 are respectively adapted to the first positioning groove 12 and the second positioning groove 32. Specifically, the top and bottom of the primary sliding plate 2 are both provided with positioning connection portions, and the front and rear rows of positioning wheels 23 are provided on the positioning connection portions. The axial directions of the positioning wheels 23 are parallel to the vertical direction. The rear row of positioning wheels 23 are adapted to the first positioning groove 12, and the front row of positioning wheels 23 are adapted to the second positioning groove 32. By providing two rows of positioning wheels 23 adapted to the first positioning groove 12 and the second positioning groove 32, respectively, the vertical distance between the fixed base plate 1, the primary sliding plate 2, and the secondary sliding plate 3 is kept constant. This also facilitates the directional sliding of the primary sliding plate 2 in the left-right direction relative to the fixed base plate 1, and the directional sliding of the secondary sliding plate 3 in the left-right direction relative to the primary sliding plate 2, thereby serving as an auxiliary sliding guide and improving the smoothness of its sliding. The top and bottom arrangements are conducive to ensuring positioning reliability and balance during sliding.

[0055] See Figure 9 and Figure 12It should be noted that the front side of the primary sliding plate 2 is provided with first limit blocks 24 at the left and right ends, and the back side of the secondary sliding plate 3 is provided with second limit blocks 33 at the left and right ends, with one of the second limit blocks 33 located between two of the first limit blocks 24. Specifically, the design of the first limit blocks 24 and the second limit blocks 33 ensures the precise positioning of the primary sliding plate 2 and the secondary sliding plate 3 during relative movement; the coordination between the limit blocks effectively prevents misalignment or shaking of the primary sliding plate 2 and the secondary sliding plate 3 during movement, ensuring the stability and reliability of the entire structure.

[0056] In addition, a plurality of weight-reducing holes are provided on the fixed base plate 1 , the primary sliding plate 2 and the secondary sliding plate 3 to reduce their respective weights. The shapes of the weight-reducing holes are not limited.

[0057] To sum up, the utility model provides a bidirectional telescopic module mechanism, which carries the products to be transferred through the secondary sliding plate 3, and through the coordinated action of the power transmission unit 4, the primary belt unit 5 and the secondary belt unit 6, can drive the primary sliding plate 2 and the secondary sliding plate 3 to extend step by step in sequence, thereby realizing the circulation of products; when the bidirectional telescopic module mechanism retracts, it only needs to reversely start the power unit to change the moving feeding radius; the bidirectional telescopic module mechanism has a compact structure, is easy to control, and has a fast action response speed, and is suitable for large-span product circulation operations.

[0058] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed in the present invention are intended to be covered by the claims of the present invention.

Claims

1. A two-way telescopic module mechanism, characterized in that: include: The fixed base plate, the primary sliding plate and the secondary sliding plate are arranged in sequence from the back to the front and are parallel to each other, and further include: A power transmission unit connected between the fixed base plate and the primary sliding plate; a primary belt unit connected between the fixed base plate and the secondary sliding plate and passing through the left end of the primary sliding plate; a secondary belt unit, arranged parallel to and below the primary belt unit, connected between the fixed base plate and the secondary sliding plate, and passing through the right end of the primary sliding plate; The primary sliding plate and the secondary sliding plate can be extended and retracted step by step relative to the fixed base plate under the coordinated action of the power transmission unit, the primary belt unit and the secondary belt unit; In which, the top and bottom of the fixed base plate are both provided with a first positioning groove, the notch of the first positioning groove at the top is arranged opposite to the notch of the first positioning groove at the bottom, the top and bottom of the secondary sliding plate are both provided with a second positioning groove, the notch of the second positioning groove at the top is arranged opposite to the notch of the second positioning groove at the bottom, and the top and bottom of the primary sliding plate are both provided with two rows of front and rear positioning wheels, and the two rows of positioning wheels are respectively adapted to the first positioning groove and the second positioning groove.

2. The bidirectional telescopic module mechanism according to claim 1, characterized in that: The power transmission unit includes a drive motor and a gear rack assembly, the drive motor is connected to the fixed base plate, the gear rack assembly includes a rack, a driving gear and a driven gear set, the driving gear is connected to the driving end of the drive motor, and the driving gear is meshed with the driven gear set, and the rack is arranged on the primary sliding plate and meshed with the driven gear set.

3. The bidirectional telescopic module mechanism according to claim 2, characterized in that: The driven gear set includes multiple groups of coaxially arranged first gears and second gears arranged along the rack direction and connecting gears meshing between adjacent first gears, wherein one of the first gears is meshed with the driving gear, and each second gear is configured to mesh with the rack.

4. The bidirectional telescopic module mechanism according to claim 1, characterized in that: The primary belt unit includes a first synchronous belt and a first synchronous wheel. The two ends of the first synchronous belt are respectively connected to the fixed base plate and the secondary sliding plate. The first synchronous wheel is arranged at the left end of the primary sliding plate, and the first synchronous belt is installed on the first synchronous wheel.

5. The bidirectional telescopic module mechanism according to claim 4, characterized in that: The primary belt unit also includes a first front pressure block and a first rear pressure block for fixing the two ends of the first synchronous belt. The first front pressure block is arranged at the right end of the fixed base plate, and the first rear pressure block is arranged at the right end of the secondary sliding plate.

6. The bidirectional telescopic module mechanism according to claim 4, characterized in that: The secondary belt unit includes a second synchronous belt and a second synchronous wheel. The second synchronous belt is parallel to the first synchronous belt. The two ends of the second synchronous belt are respectively connected to the fixed base plate and the secondary sliding plate. The second synchronous wheel is arranged at the right end of the primary sliding plate, and the second synchronous belt is installed on the second synchronous wheel.

7. The bidirectional telescopic module mechanism according to claim 6, characterized in that: The secondary belt unit also includes a second front pressure block and a second rear pressure block for fixing the two ends of the second synchronous belt. The second front pressure block is arranged at the left end of the fixed base plate, and the second rear pressure block is arranged at the left end of the secondary sliding plate.

8. The bidirectional telescopic module mechanism according to claim 1, characterized in that: The front side of the fixed base plate is provided with two upper and lower rows of first limiting grooves, the notches of the first limiting grooves face the primary sliding plate, and the back side of the primary sliding plate is provided with two upper and lower rows of multiple first limiting wheels, and the first limiting wheels are adapted to the corresponding first limiting grooves; the front side of the primary sliding plate is provided with two upper and lower rows of second limiting grooves, the notches of the second limiting grooves face the secondary sliding plate, and the back side of the secondary sliding plate is provided with two upper and lower rows of multiple second limiting wheels, and the second limiting wheels are adapted to the corresponding second limiting grooves.

9. The bidirectional telescopic module mechanism according to claim 1, characterized in that: The front side of the primary sliding plate is provided with first limit blocks at the left and right ends, and the back side of the secondary sliding plate is provided with second limit blocks at the left and right ends, and one of the second limit blocks is located between the two first limit blocks.

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