A portable and reliable film and television jib support frame

Abstract

This utility model discloses a portable and reliable film and television jib arm support frame. The aforementioned jib arm support frame includes a support frame body, with three legs rotatably connected to the bottom of the support frame body. Telescopic rods are slidably connected to the inner walls of the legs, and bottom corners are installed on the bottom of the telescopic rods. A telescopic mechanism is provided at the bottom of the support frame body, and a counterweight mechanism is provided at the bottom of the telescopic mechanism. A sleeve is fixed to the bottom of the support frame body. By rotating the handwheel, under the constraint of the limiting block and the sliding cooperation of the screw, the telescopic rod is driven to rise and fall along the inner wall of the legs through the connecting seat, connecting rod, and connecting ring. This reduces the space occupied during storage, making it easy to carry. At the same time, the self-locking property of the thread ensures that the telescopic rod will not shift due to external force. Furthermore, the counterweight, in conjunction with the straight baffle and the straight groove opened at the bottom of the mounting box, allows the counterweight to be quickly installed at the bottom of the mounting box, making the support frame body more stable and reliable during use.

Description

Technical Field

[0001] This utility model relates to the field of rocker arm support technology, and in particular to a portable and reliable film and television rocker arm support frame. Background Technology

[0002] Film and television camera crane support frame is a key piece of equipment for supporting the camera crane system in film and television shooting. Its core function is to support the load of the camera crane, camera, lens and other components through a stable structure, and to ensure the stability of the camera crane when performing multi-angle movements such as lifting, rotating and pushing.

[0003] The utility model patent CN221483098U describes a film tracking jib arm, which uses a support mechanism consisting of a side plate, a fixed plate, a support rod, and support feet to support the jib arm body. However, the aforementioned technical solution has the following problems in actual operation:

[0004] Although the main body of the camera crane can be supported by a support mechanism, the camera crane needs to be moved frequently in actual use, and the support rod is too tall, which makes it bulky and difficult to carry. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a portable and reliable film and television camera crane support.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A portable and reliable film and television jib arm support frame includes a support frame body. The bottom of the support frame body is rotatably connected to three legs. Telescopic rods are slidably connected to the inner walls of the legs. The bottom of the telescopic rods is fitted with base corners. The bottom of the support frame body is provided with a telescopic mechanism, and the bottom of the telescopic mechanism is provided with a counterweight mechanism. The telescopic mechanism includes a sleeve fixed to the bottom of the support frame body, a handwheel rotatably connected to the bottom of the sleeve, and a screw threadedly connected to the handwheel.

[0008] As a further improvement of this utility model, the telescopic mechanism also includes a connecting seat, a connecting rod, a connecting ring, a sliding column, and a limiting block.

[0009] As a further embodiment of this utility model: the sleeve is fixed to the bottom of the support frame body, the handwheel is rotatably connected to the bottom of the sleeve, the bottom of the handwheel is provided with a threaded hole, and the screw is connected to the inner wall of the threaded hole by a thread.

[0010] As a further embodiment of this utility model: the connecting seat is fixed to the outer wall of the screw, one end of the connecting rod is rotatably connected to both sides of the inner wall of the connecting seat, the connecting ring is sleeved on the outer wall of the telescopic rod, and the other end of the connecting rod is rotatably connected to the connecting ring.

[0011] As a further embodiment of this utility model: the sliding column is fixed to the top of the screw, and a groove is provided on the outer surface of the sliding column. The limiting block is fixed to the inner wall of the sleeve, and the limiting block slides in cooperation with the groove provided on the sliding column.

[0012] As a further embodiment of this utility model: the counterweight mechanism includes a mounting box, a straight baffle, a ring, a counterweight block, a spring, a pivot box, and a damping pivot.

[0013] As a further improvement of this utility model: the mounting box is fixed to the bottom of the screw, and a slot is formed at the bottom of the inner wall of the mounting box.

[0014] As a further improvement of this utility model: the ring is installed at the bottom of the mounting box, and one end of the spring is fixed to the bottom of the mounting box.

[0015] As a further embodiment of this utility model: the counterweight is attached to the other end of the spring, the rotating shaft box is fixed to the top of the counterweight, and the damping rotating shaft is installed on the inner wall of the rotating shaft box.

[0016] As a further improvement of this utility model: the bottom of the straight baffle is installed on the outer wall of the bushing of the damping shaft.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: by rotating the handwheel, under the restriction of the limiting block and the sliding cooperation of the screw, the telescopic rod is driven to rise and fall on the inner wall of the support leg through the connecting seat, connecting rod and connecting ring, which can reduce the space occupied during storage and facilitate carrying. At the same time, the self-locking property of the thread ensures that the telescopic rod will not be displaced due to external force. In addition, the counterweight block, together with the straight baffle and the straight groove opened at the bottom of the inner wall of the mounting box, can quickly install the counterweight block to the bottom of the mounting box, making the main body of the support frame more stable and reliable during use. Attached Figure Description

[0018] Figure 1 The image shown is a portable and reliable film and television jib support frame proposed in this utility model.

[0019] Figure 2 As shown Figure 1 Enlarged view of point A in the middle.

[0020] Figure 3 As shown Figure 1 Exploded view of the telescopic mechanism.

[0021] Figure 4 As shown Figure 1 A schematic diagram of the counterweight mechanism.

[0022] Figure 5 As shown Figure 4 Exploded view of point B in the middle.

[0023] Explanation of main component symbols

[0024] 1. Support frame body; 2. Support legs; 3. Telescopic rod; 4. Base corner; 5. Telescopic mechanism; 6. Counterweight mechanism; 501. Sleeve; 502. Handwheel; 503. Screw; 504. Connecting seat; 505. Connecting rod; 506. Connecting ring; 507. Sliding column; 508. Limiting block; 601. Mounting box; 602. Straight baffle; 603. Ring; 604. Counterweight; 605. Spring; 606. Shaft box; 607. Damping shaft.

[0025] The above description of the main component symbols, together with the accompanying drawings and specific embodiments, provides a further detailed explanation of this utility model. Detailed Implementation

[0026] The specific embodiments of this utility model are described in detail below.

[0027] Please see Figure 1-3 This embodiment provides a portable and reliable film and television jib support frame, which includes a support frame body 1. The bottom of the support frame body 1 is rotatably connected to three legs 2. The inner wall of the legs 2 is slidably connected to a telescopic rod 3. The bottom of the telescopic rod 3 is equipped with a bottom corner 4. The bottom of the support frame body 1 is provided with a telescopic mechanism 5, and the bottom of the telescopic mechanism 5 is provided with a counterweight mechanism 6.

[0028] In order to extend and retract the telescopic rod 3 to reduce the space occupied by the support frame body 1 and thus improve the portability of the support frame body 1. Please refer to [further details]. Figure 2-3 The telescopic mechanism 5 also includes a connecting seat 504, a connecting rod 505, a connecting ring 506, a sliding column 507, and a limiting block 508.

[0029] The sleeve 501 is fixed to the bottom of the support frame body 1. The handwheel 502 is rotatably connected to the bottom of the sleeve 501, and the bottom of the handwheel 502 is provided with a threaded hole. The screw 503 is threadedly connected to the inner wall of the threaded hole. The connecting seat 504 is fixed to the outer wall of the screw 503. One end of the connecting rod 505 is rotatably connected to both sides of the inner wall of the connecting seat 504. The connecting ring 506 is sleeved on the outer wall of the telescopic rod 3, and the other end of the connecting rod 505 is rotatably connected to the connecting ring 506. The sliding column 507 is fixed to the top of the screw 503, and the outer surface of the sliding column 507 is provided with a groove. The limiting block 508 is fixed to the inner wall of the sleeve 501, and the limiting block 508 slides in cooperation with the groove provided in the sliding column 507.

[0030] In this embodiment, the telescopic rod 3 can be retracted into the support leg 2. Specifically, the handwheel 502 is rotated at the bottom of the sleeve 501. During this process, the threaded hole of the handwheel 502 engages with the threaded screw 503. Simultaneously, the limiting block 508 restricts the rotation of the screw 503 through the groove in the sliding column 507. At this time, under the restriction of the limiting block 508, the sliding column 507 moves upward along the axial direction of the sleeve 501, and drives the connecting ring 506 to move synchronously. During the displacement process of the screw 503, the connecting seat... 504 moves synchronously and pulls one end of the connecting rod 505 upward. The other end of the connecting rod 505 pulls the telescopic rod 3 through the connecting ring 506, causing the telescopic rod 3 to slide upward along the inner wall of the support leg 2. Conversely, turning the handwheel 502 in the opposite direction will cause the screw 503 to drive the support leg 2 to move downward. Thus, the telescopic rod 3 can be driven to extend and retract synchronously with a single operation of the handwheel 502, reducing the space occupied during storage and making it easy to carry and transport. At the same time, the self-locking property of the thread ensures that the telescopic rod 3 will not be displaced by external force.

[0031] To balance the weight of the support frame body 1 and make it more reliable during operation. Please refer to [further details]. Figure 4-5 The counterweight mechanism 6 includes a mounting box 601, a straight baffle 602, a ring 603, a counterweight block 604, a spring 605, a pivot box 606, and a damping pivot 607.

[0032] The mounting box 601 is fixed to the bottom of the screw 503, and a slot is opened at the bottom of the inner wall of the mounting box 601. The ring 603 is installed at the bottom of the mounting box 601. One end of the spring 605 is fixed to the bottom of the mounting box 601. The counterweight 604 is attached to the other end of the spring 605. The shaft box 606 is fixed to the top of the counterweight 604. The damping shaft 607 is installed on the inner wall of the shaft box 606. The bottom of the slotted baffle 602 is installed on the outer wall of the bushing of the damping shaft 607.

[0033] In this embodiment, the counterweight 604 can be placed inside the ring 603, and then the counterweight 604 can be pushed upward to compress the spring 605, causing the straight baffle 602 to pass through the straight slot at the bottom of the inner wall of the mounting box 601. Then, the straight baffle 602 is rotated with the damping shaft 607 to make the straight baffle 602 misaligned with the straight slot, thus completing the installation of the counterweight 604. Conversely, the straight baffle 602 can be rotated again to make the straight baffle 602 located in the straight slot, thus disassembling the counterweight 604. Thus, by the misalignment and locking of the straight baffle 602 and the straight slot, and with the rebound force of the spring 605, it can be ensured that the counterweight 604 fits snugly in the mounting box 601 after installation, preventing it from shaking under external force. At the same time, the simple operation makes the support frame body 1 work more stably and improves portability.

[0034] The support frame of this embodiment is used as follows: First, the support legs 2 at the bottom of the support frame body 1 are unfolded outward. Then, by rotating the handwheel 502 of the telescopic mechanism 5 and under the threaded engagement of the screw 503 and the restriction of the limiting block 508, the sliding column 507 moves downward along the sleeve 501 axially. The telescopic rod 3 is driven to slide downward along the inner wall of the support leg 2 through the connecting seat 504, connecting rod 505 and connecting ring 506. Then, the weight of the support frame body 1 can be increased by the counterweight mechanism 6. When the support frame body 1 needs to be stored, the counterweight mechanism 6 is quickly disassembled. Then, the handwheel 502 is rotated in the opposite direction to retract the telescopic rod 3 into the support leg 2.

[0035] In summary, the rocker arm support frame of this embodiment has the following advantages compared with the traditional rocker arm support frame: by rotating the handwheel 502, under the restriction of the limiting block 508 and the sliding cooperation of the screw 503, the telescopic rod 3 is driven to rise and fall on the inner wall of the support leg 2 through the connecting seat 504, connecting rod 505 and connecting ring 506, which can reduce the space occupied during storage and facilitate carrying. At the same time, the self-locking property of the thread ensures that the telescopic rod 3 will not be displaced due to external force. In addition, the counterweight 604, together with the straight baffle 602 and the straight groove opened at the bottom of the inner wall of the mounting box 601, can quickly install the counterweight 604 to the bottom of the mounting box 601, making the support frame body 1 more stable and reliable during use.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A portable and reliable film and television camera crane support frame, comprising a support frame body (1), characterized in that: The support frame body (1) has three legs (2) rotatably connected to its bottom. The inner wall of the legs (2) is slidably connected to a telescopic rod (3). The bottom of the telescopic rod (3) is fitted with a bottom corner (4). The support frame body (1) has a telescopic mechanism (5) at its bottom and a counterweight mechanism (6) at its bottom. The telescopic mechanism (5) includes a sleeve (501) fixed to the bottom of the support frame body (1), a handwheel (502) rotatably connected to the bottom of the sleeve (501), and a screw (503) threadedly connected to the handwheel (502).

2. The portable and reliable film and television camera crane support frame according to claim 1, characterized in that, The telescopic mechanism (5) also includes a connecting seat (504), a connecting rod (505), a connecting ring (506), a sliding column (507), and a limiting block (508).

3. The portable and reliable film and television camera crane support frame according to claim 2, characterized in that, The sleeve (501) is fixed to the bottom of the support frame body (1), and the handwheel (502) is rotatably connected to the bottom of the sleeve (501). The bottom of the handwheel (502) has a threaded hole, and the screw (503) is threadedly connected to the inner wall of the threaded hole.

4. The portable and reliable film and television camera crane support frame according to claim 3, characterized in that, The connecting seat (504) is fixed to the outer wall of the screw (503), one end of the connecting rod (505) is rotatably connected to both sides of the inner wall of the connecting seat (504), the connecting ring (506) is sleeved on the outer wall of the telescopic rod (3), and the other end of the connecting rod (505) is rotatably connected to the connecting ring (506).

5. The portable and reliable film and television camera crane support frame according to claim 4, characterized in that, The sliding column (507) is fixed to the top of the screw (503), and a groove is provided on the outer surface of the sliding column (507). The limiting block (508) is fixed to the inner wall of the sleeve (501), and the limiting block (508) slides in cooperation with the groove provided on the sliding column (507).

6. The portable and reliable film and television camera crane support frame according to claim 1, characterized in that, The counterweight mechanism (6) includes a mounting box (601), a straight baffle (602), a ring (603), a counterweight block (604), a spring (605), a pivot box (606), and a damping pivot (607).

7. The portable and reliable film and television camera crane support frame according to claim 6, characterized in that, The mounting box (601) is fixed to the bottom of the screw (503), and a slot is opened at the bottom of the inner wall of the mounting box (601).

8. The portable and reliable film and television camera crane support frame according to claim 7, characterized in that, The ring (603) is installed at the bottom of the mounting box (601), and one end of the spring (605) is fixed to the bottom of the mounting box (601).

9. The portable and reliable film and television camera crane support frame according to claim 8, characterized in that, The counterweight (604) is attached to the other end of the spring (605), the pivot box (606) is fixed to the top of the counterweight (604), and the damping pivot (607) is installed on the inner wall of the pivot box (606).

10. The portable and reliable film and television camera crane support frame according to claim 9, characterized in that, The bottom of the straight baffle (602) is installed on the outer wall of the bushing of the damping shaft (607).

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