Rod body clamping device

Abstract

The utility model relates to the technical field of stage lamp accessories, in particular to a rod body clamping device which comprises a C-shaped body. A C-shaped jaw is formed in the right side of the C-shaped body, a first through groove is formed in the middle of the left side of the C-shaped body, the first through groove is communicated with the C-shaped jaw, the first through groove is connected with a handle through a first fixing shaft arranged at the upper end of the inner side face of the first through groove, and a rectangular groove is formed in the upper end of the outer side face of the handle. The indexing pin main body comprises an indexing pin telescopic part, and the indexing pin telescopic part is telescopically clamped with the rectangular groove of the handle; according to the rod body clamping device, the toggle dead point locking principle is mainly utilized, force is amplified through the lever, certain pre-tightening force can be provided at the clamping end through small force, and then clamping of the rod body is achieved; meanwhile, the indexing pin is arranged at the top of the device and can serve as a safety device when the lamp hook is clamped, and the situation that the lamp and the lamp hook fall together due to the fact that the handle structure is accidentally opened is prevented.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of stage lamp accessories, and particularly relates to a rod clamping device. BACKGROUND

[0002] In the process of setting up a television studio, a theater, a mobile show and a concert, the arrangement of stage lamps is a key link to achieve an ideal lighting effect. Since different scenes have different lighting needs, the installation position and angle of the lamps need to be frequently adjusted, which requires the lamp hook to have the characteristics of high efficiency, convenience and safety to adapt to the rapid change of the setting-up demand.

[0003] At present, the stage lamp hooks on the market are mainly divided into two categories: a conventional rotating nut clamping lamp hook and a cam pressing clamping lamp hook. The conventional rotating nut clamping lamp hook realizes the fixation of the lamp through the rotating nut, and although the structure is simple, there are obvious convenience problems in actual operation. During the installation process, the nut needs to be twisted for a long time, which not only consumes time, but also increases the labor intensity of the operator when the lamp is frequently disassembled and adjusted, thereby affecting the work efficiency.

[0004] The other type of cam pressing clamping lamp hook is relatively convenient during installation, but still needs to be operated with both hands during disassembly, which increases the complexity of operation. In addition, the safety tab design has the risk of pinching, and the main structure is relatively complex, which is easy to be entangled with the complex lamp hook wire in the environment, thereby increasing the safety hazard and maintenance difficulty.

[0005] Therefore, the stage lamp hook of the prior art has deficiencies in convenience, safety and operation efficiency, and a new type of lamp hook design is needed to solve the above problems and improve the efficiency and safety of stage setting. CONTENT OF THE INVENTION

[0006] The present application provides a rod clamping device which can effectively solve the problem of complex installation and disassembly of existing models on the market, and improve the single-handed operation of the cam pressing clamping lamp hook, thereby effectively increasing the speed and safety of operation and solving the problems in the background art.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a rod clamping device, comprising: a C-shaped main body; a C-shaped tiger mouth is arranged on the right side of the C-shaped main body, a through slot one is arranged on the left side of the C-shaped main body, the through slot one is communicated with the C-shaped tiger mouth, the through slot one is connected with a handle through a fixed shaft one arranged on the inner side surface of the through slot one, a rectangular slot is arranged on the outer side surface of the handle, a division pin main body is arranged on the outer side surface of the C-shaped main body, the division pin main body comprises a division pin telescopic part, and the division pin telescopic part is telescopically connected with the rectangular slot of the handle.

[0008] The handle is rotatably connected with the structure three through the handle shaft arranged on the outer side surface of the handle, the structure three is rotatably connected with the structure two through the movable shaft three arranged on the lower end of the outer side surface of the structure three, the upper end of the outer side surface of the structure two is rotatably connected with the fixed shaft two, the fixed shaft two is rotatably connected with the C-shaped main body, the outer side surface of the fixed shaft two is rotatably connected with the structure one, the lower end of the outer side surface of the structure two is provided with the movable shaft two, the movable shaft two is threadedly connected with the positioning screw through the threaded hole arranged on the outer side surface of the movable shaft two, and the lower end of the outer side surface of the structure one is provided with the through slot two.

[0009] Preferably, the inner side surface of the C-shaped claw is provided with the strip-shaped engagement teeth one at the upper end, and the inner side surface of the C-shaped claw is provided with the strip-shaped engagement teeth three at the middle part.

[0010] Preferably, the inner side surface of the C-shaped claw is provided with the strip-shaped slot at the lower end, and the inner side surface of the strip-shaped slot is provided with the positioning hole at the middle part.

[0011] Preferably, the end of the handle is provided with the protective sleeve, and the fixed shaft one is rotatably connected with the C-shaped main body.

[0012] Preferably, the outer side surface of the structure one is provided with the strip-shaped engagement teeth two close to the C-shaped claw.

[0013] Compared with the prior art, the application has the following beneficial effects:

[0014] 1. The rod clamping device mainly uses the toggle dead point locking principle, amplifies the force through a lever, and can provide a certain pre-tightening force at the clamping end by using a smaller force, thereby realizing the clamping of the rod body; meanwhile, the top of the device is provided with a dividing pin, which can be used as a safety device when the lamp hook is clamped, preventing the handle structure from being accidentally opened and causing the lamp and the lamp hook to fall together.

[0015] 2. Through the design of the dividing pin extension part and the rectangular slot of the handle, the user only needs to press or release the handle with one hand to quickly open and close the clamping device, without the need for repeated rotation of the traditional rotating nut or two-handed operation of the cam pressing structure; the multi-linkage structure simplifies the operation process, and one-handed depression of the handle can link multiple sets of engagement teeth to tighten and clamp, greatly improving the efficiency of lamp installation, disassembly and angle adjustment.

[0016] 3. The multi-stage engagement teeth are designed to be distributed at different positions of the upper, middle and lower parts of the C-shaped claw, the friction force with the rod body is increased through multi-point engagement, the lamp is effectively prevented from sliding or loosening, and the device is especially suitable for high-load or vibration environments; the thread cooperation of the positioning screw and the movable shaft one supports the fine adjustment of the clamping force, can be self-adapted to lock according to the diameter of the rod body, and avoids the safety hazards caused by overpressure or underpressure of the traditional cam structure.

[0017] 4. The integration of the C-shaped main body and the through slot one reduces exposed components, avoids the risk of wire entanglement, simplifies the internal transmission structure, and reduces the failure rate. The strip-shaped slot and the positioning hole provide auxiliary positioning function, ensure the quick alignment and installation of the clamping device and the external support, and reduce the debugging time. The adjustable occlusion tooth layout is compatible with different diameters of lamp poles or supports, and adapts to the diversified installation needs in stage building. The telescopic locking mechanism of the index pin avoids the risk of traditional cam tab clamping injury, and the clamping state can be directly judged by the clamping position of the index pin, reducing the possibility of misoperation. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 Structure of the present application Figure 1 ;

[0019] Figure 2 Structure of the present application Figure 2 ;

[0020] Figure 3 Structure of the present application Figure 3 ;

[0021] Figure 4 Front view of the present application

[0022] Figure 5 Front view of the present application

[0023] Figure 6 Front view of the present application

[0024] Figure 7 Structure of the handle

[0025] Figure 8 Structure of the structure body two

[0026] Figure 9 Structure of the structure body one

[0027] Figure 10 Structure of the structure body three

[0028] Figure 11 Structure of the present device in Example 2

[0029] Figure 12 Structure of the handle in Example 2

[0030] In the figure: 1 sheath, 2 handle, 3 fixed shaft one, 4 index pin main body, 5 C-shaped main body, 6 strip-shaped occlusal tooth one, 7 strip-shaped slot, 8 fixed shaft two, 9 position adjusting screw, 10 positioning hole, 11 structure one, 12 movable shaft one, 13 through slot one, 14 strip-shaped occlusal tooth two, 15 strip-shaped occlusal tooth three, 16 index pin telescopic part, 17 handle shaft, 18 movable shaft two, 19 structure two, 20 movable shaft three, 21 structure three, 22 insertion rod. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] In the description of the present application, if the orientation description such as "up", "down", "front", "back", "left", "right" and the like is involved, the orientation or position relationship indicated is based on the drawings, and is only for the convenience of describing the present application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. When a feature is referred to as "provided", "fixed", "connected" to another feature, it can be directly provided, fixed or connected to the other feature, or indirectly provided, fixed or connected to the other feature. Figure 4 The orientation or position relationship indicated is based on the drawings, and is only for the convenience of describing the present application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. When a feature is referred to as "provided", "fixed", "connected" to another feature, it can be directly provided, fixed or connected to the other feature, or indirectly provided, fixed or connected to the other feature.

[0033] Embodiment 1: Please refer to Figures 1-10 The present application provides the following technical solutions: a rod body clamping device, comprising: a C-shaped main body 5; the right side of the C-shaped main body is provided with a C-shaped tiger mouth, the left side of the C-shaped main body 5 is provided with a through slot one 13, the through slot one 13 is communicated with the C-shaped tiger mouth, the through slot one 13 is connected with a handle 2 through a fixed shaft one 3 provided on the inner side surface of the through slot one 13, the outer side surface of the handle 2 is provided with a rectangular groove, the outer side surface of the C-shaped main body 5 is provided with an index pin main body 4, the index pin main body 4 comprises an index pin telescopic part 16, the index pin telescopic part 16 is telescopically connected with the rectangular groove of the handle 2.

[0034] Specifically, the index pin main body 4 is screw-mounted on the C-shaped main body 5, the index pin telescopic part 16 inserted into the rectangular groove of the handle 2 can realize the position fixation of the handle 2, and the index pin is a self-locking index pin.

[0035] The handle 2 is rotatably connected with the structure three 21 through the handle shaft 17 arranged on the outer side surface thereof, the structure three 21 is rotatably connected with the structure two 19 through the movable shaft three 20 arranged on the lower end of the outer side surface thereof, the outer side surface upper end of the structure two 19 is rotatably connected with the fixed shaft two 8, the fixed shaft two 8 is rotatably connected with the C-shaped main body 5, the outer side surface of the fixed shaft two 8 is rotatably connected with the structure one 11, the lower end of the outer side surface of the structure two 19 is provided with the movable shaft two 18, the movable shaft two 18 is screw-connected with the position adjusting screw 9 through the screw hole arranged on the outer side surface thereof, the lower end of the outer side surface of the structure one 11 is provided with the through slot two, the inner side surface of the through slot two is rotatably connected with the movable shaft one 12, and the outer side surface of the movable shaft one 12 is connected with the end of the position adjusting screw 9.

[0036] Specifically, the outer side surface of the position adjusting screw 9 is provided with a threaded section and a smooth section, the threaded section is screw-connected with the screw hole on the outer side surface of the movable shaft two 18, the smooth section of the position adjusting screw 9 is rotatably connected with the movable shaft one 12 through a bearing, the rod body of the position adjusting screw 9 is a T-shaped rod, and the handle shaft 17 is used for rotatably connecting the handle 2 and the structure three 21 together; the handle shaft 17, the fixed shaft one 3 and the movable shaft three 20 constitute a toggle mechanism, and the line connecting the center points of the fixed shaft one 3 and the movable shaft three 20 serves as a criterion for judging whether the handle shaft 17 passes through the dead point or not; when the structure one 11 performs a clamping action, the handle shaft 17 is located on the right side of the line connecting the center points of the fixed shaft one 3 and the movable shaft three 20. When the structure one 11 is released, the handle shaft 17 is located on the left side of the line connecting the center points of the fixed shaft one 3 and the movable shaft three 20.

[0037] More specifically, when clamping rod pieces of different sizes, the axial spacing between the movable shaft one 12 and the movable shaft two 18 can be accurately adjusted by rotating the position adjusting screw 9 clockwise or counterclockwise. When the device is in a locked state (the toggle mechanism passes through the dead point position), the movable shaft two 18 remains relatively fixed with the C-shaped main body 5, while the displacement of the movable shaft one 12 directly drives the structure one 11 to change its position relative to the C-shaped main body 5 - its movement trajectory of approaching or moving away from the C-shaped jaw, and the clamping force is controlled through the meshing depth of the strip-shaped engaging teeth two 14 and the rod body. This linkage mechanism enables the clamping opening range to be linearly adjustable, which can not only adapt to the precise engagement of small-diameter lamp rods, but also meet the strong locking of large-diameter supports, thereby realizing the self-adaptive clamping of the rod body.

[0038] Further, the inner side surface upper end of the C-shaped jaw is arrayed with strip-shaped engaging teeth one 6, and the inner side surface middle part of the C-shaped jaw is arrayed with strip-shaped engaging teeth three 15.

[0039] Specifically, the strip-shaped engaging teeth one 6 and the strip-shaped engaging teeth three 15 can increase the friction force during engagement, and can effectively improve the firmness of rod piece fixation.

[0040] Further, the inner side surface lower end of the C-shaped jaw is provided with a strip-shaped slot 7, and the inner side surface middle part of the strip-shaped slot 7 is provided with a positioning hole 10.

[0041] Specifically, the bar-shaped slot 7 and the positioning hole 10 are used as a lamp hook for hanging the lamp.

[0042] Further, the end of the handle 2 is provided with a sheath 1, and the fixed shaft one 3 is rotationally connected with the C-shaped body 5.

[0043] Specifically, the sheath 1 increases the convenience of operation.

[0044] Further, the outer side of the structure one 11 is provided with a bar-shaped occlusal tooth two 14 near the C-shaped clitoris.

[0045] Embodiment 2: please refer to Figure 11 and 12 The main difference between this embodiment and embodiment 1 is that the insertion rod 22 is used instead of the indexing pin in embodiment 1, the end of the insertion rod 22 is inserted into the groove on the handle 2, the insertion rod 22 is in sliding connection with the positioning hole on the outer side of the C-shaped body 5, and the outer side of the insertion rod 22 is sleeved with a return spring.

[0046] Specifically, in use, the insertion rod 22 is pulled apart, the spring is compressed, the insertion rod 22 is separated from the handle 2, at this time the handle 2 can be moved, the insertion rod 22 is loosened, the spring pushes it to automatically reset, and is clamped into the groove on the handle 2.

[0047] In use: the lamp is hung in the bar-shaped slot 7 on the C-shaped clitoris, and the lamp is clamped and released.

[0048] The handle shaft 17 is rotated counterclockwise around the fixed shaft one 3 until the handle shaft 17 passes through the dead point from left to right, at the same time, the handle shaft 17 moves downward relative to the lamp hook body, the movable shaft three 20 also moves downward relative to the C-shaped body 5, thereby pushing the structure one 11 to rotate counterclockwise around the fixed shaft two 8, and pushing the structure one 11 to move counterclockwise, clamping the rod body of the lamp.

[0049] When the structure one 11 is retracted, the elastic force of the extension part of the indexing pin can offset the gravity of the naturally falling handle 2, thereby maintaining the open state of the handle 2, and facilitating the user to hang the C-shaped body 5 on the rod body.

[0050] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A rod clamping device, characterized by: The utility model relates to a C-shaped jaw clamp, which comprises a C-shaped main body (5), a C-shaped jaw is arranged on the right side of the C-shaped main body, a through slot (13) is arranged on the left side of the C-shaped main body (5), the through slot (13) is communicated with the C-shaped jaw, the through slot (13) is connected with a handle (2) through a fixed shaft (3) arranged on the inner side of the upper end of the through slot (13), a rectangular slot is arranged on the outer side of the upper end of the handle (2), a dividing pin main body (4) is arranged on the outer side of the upper end of the C-shaped main body (5), the dividing pin main body (4) comprises a dividing pin telescopic part (16), the dividing pin telescopic part (16) is telescopically connected with the rectangular slot of the handle (2). The handle (2) is rotatably connected with a structure three (21) through a handle shaft (17) arranged on the outer side of the handle (2), the structure three (21) is rotatably connected with a structure two (19) through a movable shaft three (20) arranged on the lower end of the outer side of the structure three (21), the outer side of the upper end of the structure two (19) is rotatably connected with a fixed shaft two (8), the fixed shaft two (8) is rotatably connected with the C-shaped main body (5), the outer side of the fixed shaft two (8) is rotatably connected with a structure one (11), the lower end of the outer side of the structure two (19) is provided with a movable shaft two (18), the movable shaft two (18) is screw-connected with a position adjusting screw (9) through a threaded hole arranged on the outer side of the movable shaft two (18), the lower end of the outer side of the structure one (11) is provided with a through slot two, the inner side of the through slot two is rotatably connected with a movable shaft one (12), and the outer side of the movable shaft one (12) is connected with the end of the position adjusting screw (9). The inner side of the upper end of the C-shaped jaw is arrayed with strip-shaped occlusal teeth one (6), and the inner side of the middle part of the C-shaped jaw is arrayed with strip-shaped occlusal teeth three (15).

2. A rod holder device according to claim 1, characterized in that: The lower end of the inner side of the C-shaped jaw is provided with a strip-shaped slot (7), and the inner side of the middle part of the strip-shaped slot (7) is provided with a positioning hole (10).

3. A rod holder device according to claim 1, characterized in that: The end of the handle (2) is provided with a protective sleeve (1), and the fixed shaft one (3) is rotatably connected with the C-shaped main body (5).

4. A rod holder device according to claim 1, characterized in that: The outer side of the structure one (11) is provided with strip-shaped occlusal teeth two (14) close to the C-shaped jaw.

5. A rod holder device according to claim 1, characterized in that: ​

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