CN216976727U - Constant force hinge suspender capable of preventing overturning - Google Patents
Constant force hinge suspender capable of preventing overturning Download PDFInfo
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- CN216976727U CN216976727U CN202220953399.5U CN202220953399U CN216976727U CN 216976727 U CN216976727 U CN 216976727U CN 202220953399 U CN202220953399 U CN 202220953399U CN 216976727 U CN216976727 U CN 216976727U
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Abstract
The utility model belongs to the field of constant force hinge suspenders for stages, and particularly discloses an anti-overturning constant force hinge suspender, which comprises a constant force hinge suspender, wherein an anti-overturning mechanism consisting of a square steel plate frame and a support column is arranged in the middle of the constant force hinge suspender, so that a constant force spring of the constant force hinge suspender passes through the anti-overturning mechanism, and when the constant force spring has an inclination, the constant force spring is limited by a geometric space of a cavity formed between a hinge shaft and the side wall of the square steel plate frame, so that the constant force spring cannot be overturned, and the lifting function of the constant force hinge suspender is maintained.
Description
Technical Field
The utility model relates to the field of constant force hinge suspenders for stages, in particular to an anti-overturning constant force hinge suspender.
Background
The constant force hinge suspender is usually used as a lamp lifting device for adjusting a stage and a film and television studio, and an upper joint of the constant force hinge suspender is connected with a movable pulley or a fixed facility. When the height position of the lighting lamp needs to be adjusted in a lifting mode, the lamp connected to the lower connecting frame of the hinge hanger rod is pulled, a cross bracing included angle formed by each hinge plate is deformed, and the lamp lifts along the Y axis of the constant-force hinge. Under the action of the constant force spring force, the gravity of the lamp is balanced, and the height position of the lamp can be adjusted at will within a set range.
The constant force spring that constant force hinge jib used is spiral form spring plate, and the material receives rolling line vertical direction slope, influence such as inhomogeneous of thermal treatment when processing, so when the vortex spring is tensile to the limit, the vertical direction easily produces the slope, can make the spring plate upset when the slope is too big, and then makes the unable lift of constant force jib, jib raising function inefficacy.
Disclosure of Invention
The utility model aims to solve the defects in the prior art and provides an anti-overturning constant force hinge suspender.
In order to achieve the purpose, the utility model is implemented according to the following technical scheme:
a constant force hinge suspender capable of preventing overturning comprises a constant force hinge suspender, wherein the constant force hinge suspender comprises an upper joint and a lower connecting frame, two telescopic hinge rods which are symmetrically distributed are arranged between the upper joint and the lower connecting frame, each telescopic hinge rod consists of a plurality of long hinge plates and short hinge plates which are hinged through hinge shafts, the two telescopic hinge rods are connected with respective hinged parts through hinge shafts, spring wheels are symmetrically arranged on two sides of the upper joint through the connecting plates, constant force springs are wound on the spring wheels and are positioned between the two telescopic hinge rods, and one ends of the two constant force springs are respectively connected to the hinge shafts connected between the lower ends of the two telescopic hinge rods through hooks; a horizontal square steel plate frame is fixed in the middle of a hinge shaft connected between the middle parts of two telescopic hinge rods, the hinge shaft penetrates through the front end face and the rear end face of the square steel plate frame, support columns parallel to the hinge shaft are symmetrically arranged on the left side and the right side of the hinge shaft, a constant force spring penetrates through a cavity formed between the hinge shaft and the side wall of the square steel plate frame, the distance between the front end face and the rear end face of the square steel plate frame is 3-5mm larger than the width of the constant force spring, and the distance between the support columns and the side wall of the square steel plate frame is smaller than the width of the constant force spring.
Furthermore, positioning sleeves are respectively fixed on hinge shafts above the upper end face of the square steel plate frame and below the lower end face of the square steel plate frame.
Furthermore, the height of the square steel plate frame is less than or equal to the width of the long hinge plate.
Furthermore, the middle parts of the left side wall and the right side wall of the square steel plate frame are longitudinally provided with through holes.
Compared with the prior art, the anti-overturning mechanism consisting of the square-shaped steel plate frame and the supporting column is arranged in the middle of the existing constant-force hinge hanging rod, so that the constant-force spring of the constant-force hinge hanging rod penetrates through the anti-overturning mechanism, and when the constant-force spring has a tilting tendency, the constant-force spring cannot be overturned due to the limitation of the geometric space of the cavity formed between the hinge shaft and the side wall of the square-shaped steel plate frame, and the lifting function of the constant-force hanging rod is kept.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a side view of a prior art constant force hinge boom.
Fig. 3 is a sectional view a-a of fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and examples. The specific embodiments described herein are merely illustrative of the utility model and do not limit the utility model.
As shown in fig. 1-3, the present embodiment specifically discloses an anti-overturn constant force hinge suspension rod, which includes a constant force hinge suspension rod (the constant force hinge suspension rod of the present embodiment is a commercially available constant force hinge suspension rod (as shown in fig. 2)), the constant force hinge suspension rod includes an upper joint 1 and a lower connecting frame 8, two symmetrically distributed telescopic hinge rods are disposed between the upper joint 1 and the lower connecting frame 8, the telescopic hinge rods are composed of a plurality of long hinge plates 7 and short hinge plates 5 hinged by hinge shafts 6, the two telescopic hinge rods are connected to respective hinged positions by hinge shafts 6, spring wheels 2 are symmetrically mounted on two sides of the upper joint 1 by connecting plates, the spring wheels 2 are mounted on the connecting plates by wheel shafts 4, constant force springs 3 are wound on the spring wheels 2, the constant force springs 3 are located between the two telescopic hinge rods, one ends of the two constant force springs 3 are respectively connected between lower ends of the two telescopic hinge rods by hooks On the hinge axis of the hinge; a horizontally arranged square steel plate frame 9 is fixed in the middle of a hinge shaft connected between the middle parts of two telescopic hinge rods, the hinge shaft 6 penetrates through the front end surface and the rear end surface of the square steel plate frame 9, support columns 10 parallel to the hinge shaft are symmetrically arranged on the left side and the right side of the hinge shaft 6, two ends of each support column 10 are fixedly connected with the front end surface and the rear end surface of the square steel plate frame 9 through screws, the constant force spring 3 penetrates through a cavity formed between the hinge shaft 6 and the side wall of the square steel plate frame 9, when the constant force spring type adjustable hinge device is used, the constant force spring 3 on the left side penetrates through the cavity on the left side, the constant force spring 3 on the right side penetrates through the cavity on the right side, in order to ensure that the constant force spring 3 can freely move in the cavity and can limit the constant force spring 3 to prevent the constant force spring 3 from overturning in the cavity when the constant force spring 3 has an inclination, the distance between the front end surface and the rear end surface of the square steel plate frame 9 is 3 larger than the width of the constant force spring 3 by 3-5mm (as shown in figure 3, the width of the inside of mouth style of calligraphy shaped steel sheet frame 9 sets up to 30mm, and the width of constant force spring 3 sets up to 25 mm), and the distance between the lateral wall of support column 10 and mouth style of calligraphy shaped steel sheet frame 9 is less than the width of constant force spring 3 (as shown in fig. 3, and the distance between the inside wall of support column 10 and mouth style of calligraphy shaped steel sheet frame 9 sets up to 15mm, in order not to influence the shrink of whole constant force hinge jib, the width of the long hinge plate 7 of highly less than or equal to of mouth style of calligraphy shaped steel sheet frame 9.
In the actual use process, in order to constantly keep the center formed by the square-shaped steel plate frame 9 consistent with the center of the constant force hinge hanger rod, positioning sleeves 11 are respectively fixed on the hinge shafts 6 above the upper end face of the square-shaped steel plate frame 9 and below the lower end face of the square-shaped steel plate frame 9.
In the actual use process, in order to reduce the weight of the square-shaped steel plate frame 9, through holes 12 are longitudinally formed in the middle of the left side wall and the right side wall of the square-shaped steel plate frame 9.
The working principle of the anti-overturning constant force hinge suspender of the embodiment is as follows:
the lamp is arranged on the lower connecting frame, when the constant force spring does not have a turning tendency, the lamp is lifted, the lower connecting frame 8 is pulled to ascend (descend), the short hinge plate 5 and the long hinge plate 7 change the cross bracing angle around the hinge shaft 6, the constant force hinge hanger rod is contracted or stretched, the constant force spring 2 is contracted to enter or be pulled out of the spring wheel 3, the spring wheel 3 rotates around the wheel shaft 4, and the constant force spring plate freely moves in a space formed by the anti-turning clamp;
when the constant force spring has a tilting tendency, the edge of the constant force spring is in contact with the square-shaped steel plate frame 9 and the support column 10, the space formed by the square-shaped steel plate frame 9 and the support column 10 is limited, the constant force spring can only tilt at a small angle, the geometric space of a cavity formed between the hinge shaft and the side wall of the square-shaped steel plate frame is limited, the constant force spring 3 cannot turn over, and the lifting function of the constant force suspender is maintained.
The technical solution of the present invention is not limited to the limitations of the above specific embodiments, and all technical modifications made according to the technical solution of the present invention fall within the protection scope of the present invention.
Claims (4)
1. A constant force hinge suspender capable of preventing overturning comprises a constant force hinge suspender, wherein the constant force hinge suspender comprises an upper joint and a lower connecting frame, two telescopic hinge rods which are symmetrically distributed are arranged between the upper joint and the lower connecting frame, each telescopic hinge rod consists of a plurality of long hinge plates and short hinge plates which are hinged through hinge shafts, the two telescopic hinge rods are connected with respective hinged parts through hinge shafts, spring wheels are symmetrically arranged on two sides of the upper joint through the connecting plates, constant force springs are wound on the spring wheels and are positioned between the two telescopic hinge rods, and one ends of the two constant force springs are respectively connected to the hinge shafts connected between the lower ends of the two telescopic hinge rods through hooks; the method is characterized in that: a horizontal square steel plate frame is fixed in the middle of a hinge shaft connected between the middle parts of two telescopic hinge rods, the hinge shaft penetrates through the front end face and the rear end face of the square steel plate frame, support columns parallel to the hinge shaft are symmetrically arranged on the left side and the right side of the hinge shaft, a constant force spring penetrates through a cavity formed between the hinge shaft and the side wall of the square steel plate frame, the distance between the front end face and the rear end face of the square steel plate frame is 3-5mm larger than the width of the constant force spring, and the distance between the support columns and the side wall of the square steel plate frame is smaller than the width of the constant force spring.
2. The anti-roll constant force hinge boom of claim 1, wherein: and positioning sleeves are respectively fixed on the hinge shafts above the upper end surface of the square steel plate frame and below the lower end surface of the square steel plate frame.
3. The anti-roll constant force hinge boom of claim 1, wherein: the height of the square steel plate frame is less than or equal to the width of the long hinge plate.
4. The anti-roll constant force hinge boom of claim 1, wherein: the middle parts of the left side wall and the right side wall of the square steel plate frame are longitudinally provided with through holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220953399.5U CN216976727U (en) | 2022-04-24 | 2022-04-24 | Constant force hinge suspender capable of preventing overturning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220953399.5U CN216976727U (en) | 2022-04-24 | 2022-04-24 | Constant force hinge suspender capable of preventing overturning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216976727U true CN216976727U (en) | 2022-07-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220953399.5U Active CN216976727U (en) | 2022-04-24 | 2022-04-24 | Constant force hinge suspender capable of preventing overturning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216976727U (en) |
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2022
- 2022-04-24 CN CN202220953399.5U patent/CN216976727U/en active Active
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