Multi-stage telescopic structure

Abstract

The utility model discloses a multi-stage telescopic structure which comprises a supporting seat, and at least one telescopic structure set is arranged on the supporting seat. The telescopic structure group comprises a first-stage telescopic seat, and a second-stage telescopic seat is mounted on the first-stage telescopic seat; the telescopic structure set further comprises a first-stage transmission wheel set installed on the supporting base. A second-stage transmission wheel group is arranged on the first-stage telescopic seat; the telescopic structure group further comprises a fixed seat; the fixed seat is fixedly connected with the bottom end section of the secondary belt; a telescopic driving assembly is further arranged on the supporting base. According to the utility model, through the linkage design between the first-stage telescopic seat and the second-stage telescopic seat, long-range telescopic displacement can be realized in a limited space so as to meet the requirements of different working distances or working heights. Besides, two telescopic structure groups which are symmetrically arranged can be designed, the two telescopic structure groups can jointly realize specific operations such as positioning and clamping of the actuating mechanism, and the stability of the actuating mechanism in a long-range displacement state can be further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic equipment production, in particular to a multi-stage telescopic structure. Background Art

[0002] In the fields of electronic manufacturing and testing, in order to meet different working distances or working heights, a telescopic mechanism is used to drive an actuating structure to move to a specific position; when a large displacement is required, multiple telescopic mechanisms need to be provided for driving. At present, most of the telescopic mechanisms select structures such as hydraulic cylinders, air cylinders, screw drives, and chain drives to achieve displacement driving of the actuating mechanism in the same direction. However, if only multiple telescopic mechanisms are mechanically combined together, it will occupy a large amount of space, which is not conducive to size control and also has great instability in operation. In addition, when the driving device of the telescopic mechanism is determined, it can only expand and contract in one direction, which has certain limitations. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the above problems of the prior art, and provide a multi-stage telescopic structure, which has the advantages of ingenious structure, stable and reliable operation.

[0004] The purpose of the utility model is mainly achieved by the following technical solutions:

[0005] A multi-stage telescopic structure includes a support base, and at least one set of telescopic structure groups are arranged on the support base;

[0006] Each telescopic structure group includes a first-stage telescopic seat slidably installed on the support base, and a second-stage telescopic seat is slidably installed on the first-stage telescopic seat;

[0007] Each telescopic structure group further includes a first-stage transmission wheel group installed on the support base, and the first-stage transmission wheel group includes a first-stage transmission gear and two first-stage reversing gears;

[0008] Both ends of the first-stage telescopic seat are connected with a first-stage transmission belt sleeved on the first-stage transmission gear and the two first-stage reversing gears;

[0009] A second-stage transmission wheel group is arranged on the first-stage telescopic seat. The second-stage transmission wheel group includes two second-stage transmission gears located at both ends of the first-stage telescopic seat and a second-stage transmission belt sleeved on the two second-stage transmission gears. The second-stage transmission belt is separated by the two second-stage transmission gears into a second-belt top section and a second-belt bottom section that are connected to each other;

[0010] The bottom end of the second-stage telescopic seat is fixedly connected with the second-belt top section through a second-stage connecting piece;

[0011] Each telescopic structure group further includes a fixed seat connected to the support base and located between the two first-stage reversing gears, and the fixed seat is fixedly connected with the second-belt bottom section;

[0012] A telescopic driving assembly for driving the first-stage transmission gear to rotate is further provided on the support base.

[0013] Furthermore, two sets of telescopic structure groups are provided on the support base, and the two sets of telescopic structure groups are arranged at intervals and symmetrically provided on the support base;

[0014] The telescopic driving assembly includes a telescopic driving device and a synchronous transmission rod;

[0015] A driving driving gear is sleeved on the output end of the telescopic driving device;

[0016] The first-stage transmission gears of the two sets of telescopic structure groups are respectively sleeved on both ends of the synchronous transmission rod, and a driving driven gear is also sleeved on the synchronous transmission rod;

[0017] The telescopic driving assembly further includes a telescopic driving belt sleeved on the driving driving gear and the driving driven gear.

[0018] Furthermore, a synchronous connecting rod is connected between the first-stage telescopic seats of the two sets of telescopic structure groups.

[0019] Furthermore, the top end surface of the support base is connected with a support frame located between the two sets of telescopic structure groups through a plurality of columns.

[0020] Furthermore, a first-stage guide block is installed on the support base, and a first-stage sliding groove is provided on the first-stage guide block;

[0021] A first-stage guide rail capable of slidingly cooperating with the first-stage sliding groove is connected to the first-stage telescopic seat.

[0022] Furthermore, a second-stage guide block is installed on the first-stage telescopic seat, and a second-stage sliding groove is provided on the second-stage guide block;

[0023] A second-stage guide rail capable of slidingly cooperating with the second-stage sliding groove is connected to the second-stage telescopic seat.

[0024] Furthermore, both ends of the first-stage telescopic seat are fixedly connected to both ends of the first-stage transmission belt through first-stage connecting pieces.

[0025] Furthermore, a placement plate is provided on the second-stage telescopic seat, and a fixed limiting plate extends upward at the rear end of the placement plate;

[0026] A positioning driving device is further provided on the second-stage telescopic seat, and a movable limiting plate capable of sliding relative to the placement plate and corresponding to the fixed limiting plate is connected to the output end of the positioning driving device.

[0027] Furthermore, a sliding through hole through which the placement plate can pass is provided on the movable limiting plate.

[0028] Further, a positioning guide rail is provided at the top of the secondary telescopic seat;

[0029] A positioning guide block capable of cooperating with the positioning guide rail is provided on the movable limit plate.

[0030] The utility model has the following beneficial effects:

[0031] 1. In the utility model, through the cooperation of the telescopic drive assembly and the first-stage transmission pulley group, the displacement of the first-stage telescopic seat relative to the support seat can be realized to complete the first-stage elongation action; through the cooperation of the second-stage transmission belt and the fixed seat, the displacement of the second-stage telescopic seat relative to the first-stage telescopic seat can be realized to complete the second-stage elongation action. It can be seen that through the interlocking design between the first-stage telescopic seat and the second-stage telescopic seat, long-range telescopic displacement can be realized within a limited space to meet different working distance or working height requirements.

[0032] 2. The utility model can adjust the initial positions of the first-stage transmission pulley group and the first-stage transmission belt, the relative positions of the second-stage connecting member and the top section of the second-stage belt, and the relative positions of the fixed seat and the bottom section of the second-stage belt according to the required moving direction and displacement amount to achieve the effects of unidirectional left (front) telescoping, unidirectional right (rear) telescoping, and bidirectional telescoping. Thus, it has better versatility.

[0033] 3. When the utility model is applied, two sets of symmetrically arranged telescopic structure groups can be designed. Under the synchronous drive of the telescopic drive assembly, the two sets of telescopic structure groups can jointly realize specific operations of the actuator, such as positioning, clamping, etc., which can further improve the stability of the actuator in the long-range displacement state. Description of the Drawings

[0034] In order to more clearly illustrate the embodiments of the present utility model, the drawings required for describing the embodiments of the present utility model will be briefly described below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those skilled in the art, without creative efforts, other drawings can also be obtained according to the following drawings.

[0035] Figures 1-2 It is a schematic structural diagram of a specific embodiment of the multi-stage telescopic structure described in the present utility model;

[0036] Figure 3 It is a schematic structural diagram of a specific embodiment of the multi-stage telescopic structure described in the present utility model in the zero position state;

[0037] Figure 4 It is a schematic structural diagram of the telescopic structure group in the multi-stage telescopic structure described in the present utility model in the zero position state;

[0038] Figure 5Schematic diagram of a specific embodiment of the multi-stage telescopic structure of the present utility model when extending to the right;

[0039] Figure 6 Schematic diagram of the telescopic structure group in the multi-stage telescopic structure of the present utility model when extending to the right;

[0040] Figure 7 Schematic diagram of a specific embodiment of the multi-stage telescopic structure of the present utility model when extending to the left;

[0041] Figure 8 Schematic diagram of the telescopic structure group in the multi-stage telescopic structure of the present utility model when extending to the left;

[0042] Figures 9-10 Schematic diagram of a specific embodiment of the telescopic drive assembly in the multi-stage telescopic structure of the present utility model;

[0043] Figures 11-12 Schematic diagram of a specific embodiment of the secondary telescopic seat in the multi-stage telescopic structure of the present utility model.

[0044] Among them, the component names corresponding to the reference numerals are as follows: 1. Support seat, 2. Primary telescopic seat, 3. Secondary telescopic seat, 4. Primary transmission gear, 5. Primary reversing gear, 6. Primary transmission belt, 7. Secondary transmission gear, 8. Secondary transmission belt, 9. Fixed seat, 10. Telescopic drive device, 11. Synchronous transmission rod, 12. Driving active gear, 13. Driving driven gear, 14. Telescopic drive belt, 15. Primary guide block, 16. Primary chute, 17. Primary guide rail, 18. Secondary connecting piece, 19. Secondary guide rail, 20. Secondary guide block, 21. Secondary chute, 22. Primary connecting piece, 23. Synchronous connecting rod, 24. Column, 25. Support frame, 26. Placing plate, 27. Fixed limiting plate, 28. Positioning drive device, 29. Movable limiting plate, 30. Sliding through opening, 31. Positioning guide rail, 32. Positioning guide block, 33. Primary connecting frame, 34. Support block, 35. Top section of the secondary belt, 36. Bottom section of the secondary belt, 37. Telescopic structure group. Detailed implementation manners

[0045] In order to enable those skilled in the art to better understand the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the following described embodiments are only a part of the embodiments of the present utility model, rather than all. Based on the embodiments recorded in the present utility model, all other embodiments obtained by those skilled in the art without creative efforts are within the protection scope of the present utility model.

[0046] Embodiment 1

[0047] As Figures 1 to 12 shown, the multi-stage telescopic structure includes a support base 1, and at least one set of telescopic structure groups are arranged on the support base 1;

[0048] The telescopic structure group includes a first-stage telescopic seat 2 slidably mounted on the support base 1, and a second-stage telescopic seat 3 is slidably mounted on the first-stage telescopic seat 2;

[0049] The telescopic structure group further includes a first-stage transmission wheel group mounted on the support base 1, and the first-stage transmission wheel group includes a first-stage transmission gear 4 and two first-stage reversing gears 5;

[0050] Both ends of the first-stage telescopic seat 2 are connected with a first-stage transmission belt 6 sleeved on the first-stage transmission gear 4 and the two first-stage reversing gears 5;

[0051] A second-stage transmission wheel group is arranged on the first-stage telescopic seat 2. The second-stage transmission wheel group includes two second-stage transmission gears 7 located at both ends of the first-stage telescopic seat 2 and a second-stage transmission belt 8 sleeved on the two second-stage transmission gears 7. The second-stage transmission belt 8 is separated by the two second-stage transmission gears 7 into a second-stage belt top section 35 and a second-stage belt bottom section 36 that are connected to each other;

[0052] The bottom end of the second-stage telescopic seat 3 is fixedly connected to the second-stage belt top section 35 through a second-stage connecting member 18;

[0053] The telescopic structure group further includes a fixed seat 9 connected to the support base 1 and located between the two first-stage reversing gears 5, and the fixed seat 9 is fixedly connected to the second-stage belt bottom section 36;

[0054] A telescopic driving assembly for driving the first-stage transmission gear 4 to rotate is further arranged on the support base 1.

[0055] In this embodiment, as Figure 4 shown, the first-stage transmission wheel group is connected to the support base 1 through a first-stage connecting frame 33. Among the first-stage transmission wheel group, the two first-stage reversing gears 5 are located above the first-stage transmission gear 4, and the first-stage transmission gear 4 is located in the area between the two first-stage reversing gears 5. The fixed seat 9 is located above the first-stage transmission gear 4.

[0056] Preferably, two sets of telescopic structure groups are arranged on the support base 1, and the two sets of telescopic structure groups are arranged at intervals and symmetrically on the support base 1;

[0057] The telescopic driving assembly includes a telescopic driving device 10 and a synchronous transmission rod 11;

[0058] The output end of the telescopic driving device 10 is sleeved with a driving driving gear 12;

[0059] The first-stage drive gears 4 of the two telescopic structure groups are respectively sleeved on the two end parts of the synchronous drive rod 11, and a driven gear 13 is also sleeved on the synchronous drive rod 11.

[0060] The telescopic drive assembly further includes a telescopic drive belt 14 sleeved on the drive driving gear 12 and the driven gear 13.

[0061] In this embodiment, the telescopic drive device 10 can be a reduction motor.

[0062] Preferably, the two end parts of the first-stage telescopic base 2 are fixedly connected to the two end parts of the first-stage drive belt 6 through first-stage connectors 22.

[0063] In this embodiment, the initial positions of the first-stage drive wheel set and the first-stage drive belt, the relative position between the second-stage connector 18 and the top section 35 of the second-stage belt, and the relative position between the fixed seat 9 and the bottom section 36 of the second-stage belt can be adjusted according to the actual moving direction and displacement amount, so as to achieve the effects of unidirectional left (front) telescoping, unidirectional right (rear) telescoping, and bidirectional telescoping.

[0064] Taking bidirectional telescoping as an example, when the first-stage drive wheel set is located in the middle area of the first-stage drive belt 6, the second-stage connector 18 should be connected to the middle area of the top section 35 of the second-stage belt, and the fixed seat 9 should be connected to the middle area of the bottom section 36 of the second-stage belt. In this way, the first-stage telescopic base 2 and the second-stage telescopic base 3 can perform telescopic movement in two directions, left (front) or right (rear), relative to the support base 1.

[0065] Taking the scheme of setting two telescopic structure groups as the preferred scheme, as Figure 1 and Figure 2 shown, this scheme has better stability when performing specific telescopic actions.

[0066] Taking the telescopic drive assembly driving the first-stage telescopic base 2 and the second-stage telescopic base 3 to move to the right as an example for illustration, in application, start the telescopic drive device 10. Through the cooperation of the drive driving gear 12, the driven gear 13, and the telescopic drive belt 14, the synchronous drive rod 11 can be driven to rotate, and then the first-stage drive gears 4 in the two first-stage drive wheel sets can be driven to rotate synchronously. Under the driving action of the first-stage drive gears 4 and the two first-stage reversing gears 5, the first-stage drive belt 6 will drive the first-stage telescopic base 2 to move to the right relative to the support base 1 through the first-stage connectors 22, completing the first-stage elongation action; during the rightward movement of the first-stage telescopic base 2, the second-stage drive belt 8 arranged thereon also has a tendency to move to the right. Since the fixed seat 9 fixes and restricts the bottom section 36 of the second-stage belt, to meet the requirement of this displacement amount, under the support of the two second-stage drive gears 7, the top section 35 of the second-stage belt will drive the second-stage connector 18 to move to the right, and then the second-stage telescopic base 3 can be driven to move to the right relative to the first-stage telescopic base 2, thus completing the second-stage elongation action, asFigure 6 as shown

[0067] Similarly, the telescopic drive assembly can drive the first-stage telescopic seat 2 and the second-stage telescopic seat 3 to move leftward relative to the support seat 1, as Figure 8 shown

[0068] It can be seen that in this embodiment, through the interlocking design between the first-stage telescopic seat and the second-stage telescopic seat, a long-range telescopic displacement can be realized within a limited space to meet the requirements of different working distances or working heights.

[0069] Preferably, a synchronous connecting rod 23 is connected between the first-stage telescopic seats 2 of the two telescopic structure groups to maintain the synchronization of the telescopic movements of the two first-stage telescopic seats 2.

[0070] When this embodiment is applied, functional execution mechanisms for positioning, clamping, or other functions are mostly provided on the second-stage telescopic seat 3. To ensure the synchronization of the functional execution mechanisms on the two second-stage telescopic seats 3, it is necessary to make the telescopic movements of the two first-stage telescopic seats 2 synchronous.

[0071] Preferably, the top end surface of the support seat 1 is connected with a support frame 25 located between the two telescopic structure groups through a plurality of columns 24.

[0072] In this embodiment, the support frame 25 can be used for wire routing and other settings.

[0073] Preferably, a first-stage guide block 15 is installed on the support seat 1, and a first-stage sliding groove 16 is formed in the first-stage guide block 15;

[0074] A first-stage guide rail 17 that can be slidably matched with the first-stage sliding groove 16 is connected to the first-stage telescopic seat 2.

[0075] In this embodiment, through the cooperation between the first-stage guide rail 17 and the first-stage guide block 15, the stability of the first-stage telescopic seat 2 during telescopic movement can be improved.

[0076] Preferably, a second-stage guide block 20 is installed on the first-stage telescopic seat 2, and a second-stage sliding groove 21 is formed in the second-stage guide block 20;

[0077] A second-stage guide rail 19 that can be slidably matched with the second-stage sliding groove 21 is connected to the second-stage telescopic seat 3.

[0078] In this embodiment, through the cooperation between the second-stage guide rail 19 and the second-stage guide block 20, the stability of the second-stage telescopic seat 3 during telescopic movement can be improved.

[0079] Preferably, a placement plate 26 is provided on each of the second-stage telescopic seats 3, and a fixed limiting plate 27 extends upward at the rear end of the placement plate 26;

[0080] A positioning driving device 28 is further arranged on the secondary telescopic seat 3, and an output end of the positioning driving device 28 is connected with a movable limiting plate 29 which can slide relative to the placing plate 26 and corresponds to the fixed limiting plate 27.

[0081] In this embodiment, the positioning driving device 28 can be selected as a cylinder.

[0082] Taking the example of arranging two sets of telescopic structure groups, during application, the primary telescopic seat 2 can be first extended through the cooperation of the telescopic driving assembly and the primary transmission wheel group, and then the secondary telescopic seat 3 can be further extended through the cooperation of the secondary transmission belt 8 and the fixed seat 9 to move the placing plate 26 to a specified area. The movable limiting plate 29 is moved through the positioning driving device 28 to increase the distance between the movable limiting plate 29 and the fixed limiting plate 27. When the product to be processed is placed between the movable limiting plate 29 and the fixed limiting plate 27, the position of the movable limiting plate 29 is then contracted through the positioning driving device 28 so that the product to be processed can be positioned between the movable limiting plate 29 and the fixed limiting plate 27. Then, the positions of the secondary telescopic seat 3 and the primary telescopic seat 2 are gradually reset, and the placing plate 26 with the product to be processed placed thereon can be reset to the processing station.

[0083] Wherein, the placing plate 26 can be arranged above the positioning driving device 28 through a support block 34.

[0084] Preferably, a sliding through - opening 30 through which the placing plate 26 can penetrate is formed on the movable limiting plate 29. In this way, it can be avoided that the movable limiting plate 29 disengages from the placing plate 26 during movement.

[0085] Preferably, a positioning guide rail 31 is arranged at the top end of the secondary telescopic seat 3;

[0086] A positioning guide block 32 which can cooperate with the positioning guide rail 31 is arranged on the movable limiting plate 29.

[0087] In this embodiment, through the cooperation of the positioning guide rail 31 and the positioning guide block 32, the stability of the movement of the movable limiting plate 29 can be improved.

[0088] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above - mentioned embodiments. What is described in the above - mentioned embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. Multi-stage telescopic structure, characterized by: It comprises a support base (1), on which at least one telescopic structure group is arranged; The telescopic structure group comprises a primary telescopic seat (2) slidably mounted on a support seat (1), and a secondary telescopic seat (3) slidably mounted on the primary telescopic seat (2); The telescopic structure group also includes a primary transmission wheel group installed on the support seat (1), and the primary transmission wheel group includes a primary transmission gear (4) and two primary reversing gears (5); The two ends of the primary telescopic seat (2) are connected to a primary transmission belt (6) sleeved on a primary transmission gear (4) and two primary reversing gears (5); A secondary transmission wheel set is arranged on the primary telescopic seat (2), the secondary transmission wheel set comprising two secondary transmission gears (7) located at both ends of the primary telescopic seat (2) and a secondary transmission belt (8) sleeved on the two secondary transmission gears (7), the secondary transmission belt (8) being divided by the two secondary transmission gears (7) into a secondary belt top section (35) and a secondary belt bottom section (36) connected to each other; The bottom end of the secondary telescopic seat (3) is fixedly connected to the top end section (35) of the secondary belt via a secondary connecting piece (18); The telescopic structure group also includes a fixed seat (9) connected to the support seat (1) and located between the two primary reversing gears (5), the fixed seat (9) being fixedly connected to the bottom end section (36) of the secondary belt; and a telescopic driving component for driving the primary transmission gear (4) to rotate is also provided on the support seat (1).

2. The multi-stage telescopic structure according to claim 1, characterized in that: The support base (1) is provided with two groups of telescopic structure groups, which are arranged at intervals and symmetrically arranged on the support base (1); The telescopic drive assembly comprises a telescopic drive device (10) and a synchronous transmission rod (11); The output end of the telescopic driving device (10) is sleeved with a driving active gear (12); The primary transmission gears (4) of the two telescopic structure groups are respectively sleeved on the two ends of the synchronous transmission rod (11), and the synchronous transmission rod (11) is also sleeved with a driving driven gear (13); The telescopic driving assembly also includes a telescopic driving belt (14) sleeved on the driving driving gear (12) and the driving driven gear (13).

3. The multi-stage telescopic structure according to claim 2, characterized in that: A synchronous connecting rod (23) is connected between the first-stage telescopic seats (2) of the two telescopic structure groups.

4. The multi-stage telescopic structure according to claim 2, characterized in that: The top end surface of the support seat (1) is connected to a support frame (25) located between the two telescopic structure groups via a plurality of columns (24).

5. The multi-stage telescopic structure according to claim 1, characterized in that: A primary guide block (15) is installed on the support seat (1), and a primary slide groove (16) is provided on the primary guide block (15); The primary telescopic seat (2) is connected with a primary guide rail (17) which can slidably cooperate with the primary slide groove (16).

6. The multi-stage telescopic structure according to claim 1, characterized in that: The primary telescopic seat (2) is provided with a secondary guide block (20), and the secondary guide block (20) is provided with a secondary slide groove (21); the secondary telescopic seat (3) is connected with a secondary guide rail (19) which can slide with the secondary slide groove (21).

7. The multi-stage telescopic structure according to claim 1, characterized in that: The two ends of the primary telescopic seat (2) are fixedly connected to the two ends of the primary transmission belt (6) via a primary connecting piece (22).

8. The multi-stage telescopic structure according to any one of claims 1 to 7, characterized in that: The secondary telescopic seat (3) is provided with a placement plate (26), and a fixed limit plate (27) is provided at the rear end of the placement plate (26) extending upward; The secondary telescopic seat (3) is also provided with a positioning drive device (28), and the output end of the positioning drive device (28) is connected to a movable limit plate (29) which can slide relative to the placement plate (26) and corresponds to the fixed limit plate (27).

9. The multi-stage telescopic structure according to claim 8, characterized in that: The movable limiting plate (29) is provided with a sliding opening (30) through which the placement plate (26) can pass.

10. The multi-stage telescopic structure according to claim 8, characterized in that: A positioning guide rail (31) is provided at the top end of the secondary telescopic seat (3); The movable limiting plate (29) is provided with a positioning guide block (32) which can cooperate with the positioning guide rail (31).

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