A rotary rod structure

Abstract

This invention discloses a rotary boom structure, including a first boom and a second boom, which is threadedly connected to the inside of the first boom, with its end located below the first boom; a sleeve, parallel to the first boom, with a fixing plate rotatably mounted on its top, the fixing plate being fixedly fitted onto the surface of the first boom; a sleeve rod, slidably mounted on the end of the sleeve via a spline; and a connecting plate, rotatably fitted onto the surfaces of the second boom and the sleeve rod. This invention allows for cable threading by first fixing the cable between two clamps, then rotating the conveyor belt to thread the cable, and finally allowing the top of the second boom rod to extend beyond the top of the first boom rod, thus completing the threading process. The threading is stable and smooth, preventing threading failures due to cable twisting, and ensuring optimal performance.

Description

Technical Field

[0001] This invention relates to the field of boom technology, and more particularly to a rotary boom structure. Background Technology

[0002] A rotary boom structure is a suspended mechanical device that works from top to bottom by being mounted on a mounting base at the top and connected to a working device at the bottom.

[0003] Current rotary boom structures typically have internal wiring capabilities. However, when threading the cables before use, the cables are prone to bending, making it difficult to thread them through the boom and reducing the efficiency of the wiring. Furthermore, they lack the ability to coarsely and finely adjust the boom height during use. Therefore, there is an urgent need to design a rotary boom structure. Summary of the Invention

[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing a rotary rod structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A rotary boom structure includes a first boom and further includes:

[0007] The second boom is threadedly connected to the inside of the first boom, and the end of the second boom is located below the first boom;

[0008] A sleeve is arranged parallel to the first lifting rod, and a fixing plate is rotatably installed on the top of the sleeve, which is fixedly sleeved onto the surface of the first lifting rod.

[0009] A sleeve rod is slidably mounted at the end of the sleeve via a spline;

[0010] A connecting plate is rotatably sleeved onto the surfaces of the second lifting rod and the sleeve rod.

[0011] The cable threading assembly is installed inside the second boom and is used to allow the cable to pass smoothly through the boom.

[0012] A height adjustment assembly is mounted on the second boom and the sleeve boom. The height adjustment assembly is used to adjust the distance between the first boom and the second boom at their far ends.

[0013] As a further technical solution of the present invention, an upper mounting bracket is installed on the top surface of the first boom via a bearing, and a mounting seat is installed on the top of the upper mounting bracket via bolts. A lower mounting bracket is installed on the end surface of the second boom via a bearing, and a working device is installed on the bottom of the lower mounting bracket via bolts.

[0014] As a further technical solution of the present invention, a drive motor is fixedly installed on the top of the fixed plate, and the output shaft of the drive motor passes through the fixed plate and is fixedly installed at the center of the end face of the sleeve.

[0015] As a further technical solution of the present invention, the threading assembly includes: a conveyor belt, which is rotatably disposed inside the second hanger, with round rollers at both ends inside the conveyor belt, and a limiting shaft fixed on the inner wall of the second hanger is rotatably installed at the center of the end face of each round roller, and a first knob is rotatably installed on the outer side of the second hanger, and a connecting shaft is fixedly installed between the first knob and the corresponding limiting shaft.

[0016] As a further technical solution of the present invention, a clamp is fixedly installed on the side of the conveyor belt, and two symmetrically arranged clamps slide on the outer side of the clamp. A through strip groove is opened on the side of the clamp on which the clamps slide.

[0017] As a further technical solution of the present invention, there are two symmetrically arranged sliding plates inside the clamp, and protrusions are fixedly installed on the end faces of the two sliding plates. The two protrusions pass through the strip groove and are respectively fixedly installed on the end faces of the corresponding clamp plates.

[0018] As a further technical solution of the present invention, a lead screw is rotatably installed inside the clamp, and a movable block is slidably provided inside the clamp. The movable block is located between two clamping plates. The surface of the lead screw is connected to the inside of the movable block by a thread. Connecting rods are rotatably installed on the opposite sides of the movable block. The other ends of the two connecting rods are rotatably installed on the opposite sides of the two sliding plates. Second knobs are rotatably installed on the two outer sides of the clamp away from each other. The two second knobs are fixedly installed at the center of the corresponding end face of the lead screw by connecting shafts.

[0019] As a further technical solution of the present invention, the height adjustment component includes: an upper inner ratchet disk and a lower inner ratchet disk, both of which are rotatably sleeved on the surface of the sleeve rod. The upper inner ratchet disk is located above the lower inner ratchet disk. Turntables are rotatably installed at the bottom of both the upper and lower inner ratchet disks, and both turntables are fixedly sleeved on the surface of the sleeve rod.

[0020] As a further technical solution of the present invention, the second lifting rod and the sleeve are rotatably provided with a first belt and a second belt. The first belt and the second belt are respectively provided with a first pulley and a small pulley and a second pulley and a large pulley at their inner ends. The first pulley and the second pulley are both fixedly sleeved on the surface of the second lifting rod. The small pulley and the large pulley are respectively fixedly sleeved on the upper inner ratchet disc and the lower inner ratchet disc.

[0021] As a further technical solution of the present invention, the ratchet teeth on the upper inner ratchet disc and the lower inner ratchet disc are arranged in opposite directions. Each turntable surface is provided with a pawl, a limiting pin and a spring piece. The pawl is rotatably mounted on the side of the turntable, the limiting pin and the spring piece are fixedly mounted on the side of the turntable, and only the end of the spring piece is fixedly mounted on the side of the turntable. The pawl is located between the limiting pin and the spring piece.

[0022] The beneficial effects of this invention are as follows:

[0023] Firstly, this invention, through a fixed clamp, a sliding clamp, and a rotating conveyor belt, allows the cable to be fixed between the two clamps before threading. Then, the conveyor belt rotates to thread the cable, and finally, the top of the second rod extends beyond the top of the first rod, thus completing the threading process. The threading is stable and smooth, and there is no failure due to cable twisting, ensuring the effectiveness of the product.

[0024] Secondly, the present invention, through the movable upper inner ratchet disc and lower inner ratchet disc and the four pulleys fixedly connected, can make the drive motor rotate forward when it is necessary to quickly adjust the first and second booms, and reverse the drive motor when it is necessary to finely adjust the distance between the first and second booms, thereby realizing the speed at which the second boom moves up or down, and thus more efficiently completing the adjustment between the first and second booms. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of a rotary rod structure proposed in this invention;

[0026] Figure 2 for Figure 1 Enlarged view of section A;

[0027] Figure 3 This is a bottom view schematic diagram of a rotary rod structure proposed in this invention;

[0028] Figure 4 for Figure 3 Enlarged view of section B;

[0029] Figure 5 This is a schematic diagram of the structure of a rotary boom structure proposed in this invention after the first belt, first pulley, and small pulley are separated from the upper inner ratchet disc.

[0030] Figure 6 for Figure 5 Enlarged view of section C;

[0031] Figure 7 This is a schematic diagram of the internal structure of the second rod of a rotary rod structure proposed in this invention;

[0032] Figure 8 for Figure 7 Enlarged version of section D.

[0033] In the diagram: 1. First lifting rod; 2. Second lifting rod; 3. Sleeve; 4. Sleeve rod; 5. Mounting seat; 6. Lower mounting frame; 7. Upper mounting frame; 8. First belt; 9. First pulley; 10. Small pulley; 11. Upper inner ratchet disc; 12. Second belt; 13. Second pulley; 14. Large pulley; 15. Lower inner ratchet disc; 16. Fixing plate; 17. Drive motor; 18. Connecting plate; 19. Conveyor belt; 20. Circular roller; 21. Limiting shaft; 22. First knob; 23. Clamping seat; 24. Second knob; 25. Clamping plate; 26. Strip groove; 27. Turntable; 28. Pawl; 29. ​​Slide plate; 30. Moving block; 31. Lead screw; 32. Connecting rod. Detailed Implementation

[0034] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Please see the appendix Figure 1 -Appendix Figure 8 A rotary boom structure, including a first boom 1, and further comprising:

[0037] The second lifting rod 2 is threadedly connected to the inside of the first lifting rod 1. The end of the second lifting rod 2 is located below the first lifting rod 1. It should be noted that the second lifting rod 2 has a reciprocating thread so that it can automatically move down when the second lifting rod 2 moves to the top of the first lifting rod 1.

[0038] Sleeve 3 is arranged parallel to the first lifting rod 1. A fixing plate 16 is rotatably installed on the top of sleeve 3 and the fixing plate 16 is fixedly sleeved on the surface of the first lifting rod 1.

[0039] Sleeve 4 is slidably mounted at the end of sleeve 3 via a spline;

[0040] Connecting plate 18, which is rotatably sleeved on the surfaces of the second lifting rod 2 and the sleeve rod 4;

[0041] The cable threading assembly is installed inside the second hanger 2 and is used to allow the cable to pass smoothly through the hanger.

[0042] A height adjustment assembly is installed on the second boom 2 and the sleeve 4. The height adjustment assembly is used to adjust the distance between the first boom 1 and the second boom 2 away from their ends.

[0043] The top surface of the first rod 1 is fitted with an upper mounting bracket 7 via a bearing. The top of the upper mounting bracket 7 is fitted with a mounting seat 5 via bolts. The end surface of the second rod 2 is fitted with a lower mounting bracket 6 via a bearing. The bottom of the lower mounting bracket 6 is fitted with a working device via bolts. The top of the fixing plate 16 is fixedly fitted with a drive motor 17. The output shaft of the drive motor 17 passes through the fixing plate 16 and is fixedly fitted at the center of the end face of the sleeve 3.

[0044] By setting up the above technical solution, not only can the height of the boom be adjusted, but also fast and smooth wire threading can be achieved.

[0045] Please see the appendix Figure 1 -Appendix Figure 8 In a preferred embodiment, the threading assembly includes: a conveyor belt 19 rotatably disposed inside the second suspension rod 2; rollers 20 are provided at both ends of the conveyor belt 19; a limiting shaft 21 fixed to the inner wall of the second suspension rod 2 is rotatably mounted at the center of the end face of each roller 20; a first knob 22 is rotatably mounted on the outer side of the second suspension rod 2; a connecting shaft is fixedly installed between the first knob 22 and the corresponding limiting shaft 21; a clamp 23 is fixedly mounted on the side of the conveyor belt 19; two symmetrically arranged clamping plates 25 slide on the outer side of the clamp 23; a through-slot 26 is opened on the side of the clamp 23 where the clamping plates 25 slide; two symmetrically arranged sliding plates 29 slide inside the clamp 23; protrusions are fixedly mounted on the end faces of the two sliding plates 29; and the two protrusions pass through... The cable passes through the slot 26 and is fixedly installed on the end face of the corresponding clamp 25. A lead screw 31 is rotatably installed inside the clamp 23. A movable block 30 is slidably installed inside the clamp 23. The movable block 30 is located between the two clamps 25. The surface of the lead screw 31 is connected to the inside of the movable block 30 by a thread. A connecting rod 32 is rotatably installed on the opposite side of the movable block 30. The other two ends of the two connecting rods 32 are rotatably installed on the opposite side of the two slide plates 29. A second knob 24 is rotatably installed on the two outer sides of the clamp 23. The two second knobs 24 are fixedly installed at the center of the corresponding end face of the lead screw 31 by a connecting shaft. With the setting of the cable threading assembly, the cable can be quickly threaded through the first hanger 1 and the second hanger 2, and the threading is smooth and there will be no situation where the cable cannot be threaded.

[0046] Please see the appendix Figure 1 -Appendix Figure 8In a preferred embodiment, the height adjustment assembly includes: an upper inner ratchet disc 11 and a lower inner ratchet disc 15, both of which are rotatably fitted onto the surface of the sleeve rod 4. The upper inner ratchet disc 11 is located above the lower inner ratchet disc 15. Turntables 27 are rotatably mounted on the bottom of both the upper and lower inner ratchet discs 11 and 15, respectively. Both turntables 27 are fixedly fitted onto the surface of the sleeve rod 4. A first belt 8 and a second belt 12 are rotatably mounted on the outside of the second lifting rod 2 and the sleeve rod 4. The first belt 8 and the second belt 12 have a first pulley 9 and a small pulley 10 at their inner ends, and a second pulley 13 and a large pulley 14 at their inner ends. The first pulley 9 and the second pulley 13 are fixedly fitted onto the surface of the second lifting rod 2. 10 and the large pulley 14 are respectively fixedly sleeved on the upper inner ratchet disc 11 and the lower inner ratchet disc 15. The ratchet teeth on the upper inner ratchet disc 11 and the lower inner ratchet disc 15 are arranged in opposite directions. Each turntable 27 surface is provided with a pawl 28, a limit pin and a spring. The pawl 28 is rotatably mounted on the side of the turntable 27, and the limit pin and the spring are fixedly mounted on the side of the turntable 27. Only the end of the spring is fixedly mounted on the side of the turntable 27. The pawl 28 is located between the limit pin and the spring. Through the setting of the height adjustment component, the speed of the second boom 2 moving up and down can be selected by a drive motor 17 during use, avoiding the inaccuracy of adjustment when the second boom 2 moves too fast and the reduced adjustment efficiency when it moves too slow.

[0047] As can be seen from the above description, the above embodiments of the present invention achieve the following technical effects: First, the lower mounting bracket 6 is installed on the working equipment, and the upper mounting bracket 7 is installed on the mounting base 5;

[0048] When threading the cable, first position the cable end between the two clamps 25. Turn the second knob 24 to drive the lead screw 31 to rotate. The rotation of the lead screw 31 will drive the movable block 30 to move. The movement of the movable block 30 will drive the two connecting rods 32 to move. The movement of the two connecting rods 32 will drive the two sliding plates 29 to move. The movement of the two sliding plates 29 will drive the two clamps 25 to move, thereby clamping the cable end. Then, turn the first knob 22 to drive the roller 20 and the conveyor belt 19 to rotate. The rotation of the conveyor belt 19 will drive the clamp 23 to move. The movement of the clamp 23 will drive the cable fixed by the clamps 25 to move, thereby moving the cable to the top of the second hanger 2.

[0049] Next, the forward rotation of the drive motor 17 will drive the sleeve 3 and the sleeve rod 4 (spline connection) to rotate. The rotation of the sleeve rod 4 will drive the two turntables 27 to rotate. Due to the orientation of the ratchet teeth and pawls 28 on the upper inner ratchet disc 11 and the lower inner ratchet disc 15, the forward rotation of the sleeve rod 4 will drive the upper inner ratchet disc 11 to rotate, while the lower inner ratchet disc 15 will not rotate. The rotation of the upper inner ratchet disc 11 will drive the small pulley 10 to rotate. The rotation of the small pulley 10 will drive the first belt 8 and the first pulley 9 to rotate. The rotation of the first pulley 9 will drive the second hanger 2 to rotate. The rotation of the second hanger 2 will move upward relative to the first hanger 1 (the first hanger 1 and the second hanger 2 are connected by a reciprocating thread), so that the second hanger 2 can drive the cable through the first hanger 1, realizing the rapid threading of the cable.

[0050] When fine adjustment is needed between the first rod 1 and the second rod 2, simply reverse the drive motor 17 (forward and reverse motor). As can be seen from the above, the reverse rotation of the sleeve rod 4 will drive the lower inner ratchet disc 15 to rotate, while the upper inner ratchet disc 11 will not rotate. The rotation of the lower inner ratchet disc 15 will drive the large pulley 14, the second belt 12, and the second pulley 13 to rotate (the first pulley 9 and the second pulley 13 have the same diameter). The second pulley 13 will drive the second rod 2 to move relative to the first rod 1, thereby achieving fine adjustment between the first rod 1 and the second rod 2, and thus improving the performance of the equipment.

[0051] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A rotary boom structure, comprising a first boom (1), characterized in that, Also includes: The second rod (2) is threadedly connected to the inside of the first rod (1), and the end of the second rod (2) is located below the first rod (1); Sleeve (3), the sleeve (3) is arranged parallel to the first rod (1), and a fixing plate (16) is rotatably installed on the top of the sleeve (3), the fixing plate (16) is fixedly sleeved on the surface of the first rod (1); Sleeve rod (4), which is slidably disposed at the end of sleeve (3) via spline; Connecting plate (18), which is rotatably sleeved on the surface of the second lifting rod (2) and the sleeve rod (4); A cable threading assembly is installed inside the second boom (2) and is used to allow the cable to pass smoothly through the boom; A height adjustment assembly is installed on the second boom (2) and the sleeve (4), and the height adjustment assembly is used to adjust the distance between the first boom (1) and the second boom (2) away from their ends.

2. The rotary rod structure according to claim 1, characterized in that, The top surface of the first boom (1) is fitted with an upper mounting bracket (7) via a bearing, and the top of the upper mounting bracket (7) is fitted with a mounting seat (5) via bolts. The end surface of the second boom (2) is fitted with a lower mounting bracket (6) via a bearing, and the bottom of the lower mounting bracket (6) is fitted with a working device via bolts.

3. The rotary rod structure according to claim 2, characterized in that, A drive motor (17) is fixedly installed on the top of the fixed plate (16). The output shaft of the drive motor (17) passes through the fixed plate (16) and is fixedly installed at the center of the end face of the sleeve (3).

4. The rotary rod structure according to claim 3, characterized in that, The threading assembly includes: a conveyor belt (19), which is rotatably disposed inside the second rod (2). Both ends of the conveyor belt (19) are provided with rollers (20). A limiting shaft (21) fixed on the inner wall of the second rod (2) is rotatably installed at the center of the end face of each roller (20). A first knob (22) is rotatably installed on the outer side of the second rod (2). A connecting shaft is fixedly installed between the first knob (22) and the corresponding limiting shaft (21).

5. A rotary rod structure according to claim 4, characterized in that, The conveyor belt (19) is fixedly installed with a clamp (23) on its side. The clamp (23) has two symmetrically arranged clamps (25) sliding on its outer side. The side of the clamp (23) on which the clamps (25) slide is provided with a through strip groove (26).

6. A rotary rod structure according to claim 5, characterized in that, The clamp (23) has two symmetrically arranged sliding plates (29) inside. The end faces of the two sliding plates (29) are fixedly installed with protrusions. The two protrusions pass through the strip groove (26) and are respectively fixedly installed on the end faces of the corresponding clamp plate (25).

7. A rotary rod structure according to claim 6, characterized in that, A lead screw (31) is rotatably installed inside the clamp (23). A movable block (30) is slidably provided inside the clamp (23). The movable block (30) is located between two clamping plates (25). The surface of the lead screw (31) is threaded to the inside of the movable block (30). A connecting rod (32) is rotatably installed on the opposite side of the movable block (30). The other ends of the two connecting rods (32) are respectively rotatably installed on the opposite side of the two sliding plates (29). A second knob (24) is rotatably installed on the two outer sides of the clamp (23). The two second knobs (24) are respectively fixedly installed at the center of the corresponding end face of the lead screw (31) through connecting shafts.

8. A rotary rod structure according to claim 7, characterized in that, The height adjustment assembly includes an upper inner ratchet disc (11) and a lower inner ratchet disc (15). Both the upper inner ratchet disc (11) and the lower inner ratchet disc (15) are rotatably sleeved on the surface of the sleeve rod (4). The upper inner ratchet disc (11) is located above the lower inner ratchet disc (15). Turntables (27) are rotatably installed at the bottom of both the upper inner ratchet disc (11) and the lower inner ratchet disc (15). Both turntables (27) are fixedly sleeved on the surface of the sleeve rod (4).

9. A rotary rod structure according to claim 8, characterized in that, The second boom (2) and the sleeve (4) are rotatably provided with a first belt (8) and a second belt (12). The first belt (8) and the second belt (12) are respectively provided with a first pulley (9) and a small pulley (10) and a second pulley (13) and a large pulley (14) at their inner ends. The first pulley (9) and the second pulley (13) are fixedly sleeved on the surface of the second boom (2). The small pulley (10) and the large pulley (14) are respectively fixedly sleeved on the upper inner ratchet disc (11) and the lower inner ratchet disc (15).

10. A rotary rod structure according to claim 9, characterized in that, The ratchet teeth on the upper inner ratchet disc (11) and the lower inner ratchet disc (15) are arranged in opposite directions. Each of the turntables (27) is provided with a pawl (28), a limiting pin and a spring piece on its surface. The pawl (28) is rotatably mounted on the side of the turntable (27). The limiting pin and the spring piece are fixedly mounted on the side of the turntable (27). Only the end of the spring piece is fixedly mounted on the side of the turntable (27). The pawl (28) is located between the limiting pin and the spring piece.

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