Turnover mechanism of lamp hook

Abstract

The utility model provides a turnover mechanism of a lamp hook. The turnover mechanism comprises a U-shaped lug and a flat plate which are connected to a lamp hook body and a base correspondingly. The thin end of a stepped shaft penetrates through a circular hole matched with the stepped shaft in the flat plate, and the thin end of the stepped shaft is further provided with a radial first through hole. A receding hole is formed in the bottom end of a connecting block, the thin end of the stepped shaft is sleeved with the connecting block, and a second through hole is formed in the position, corresponding to the first through hole, of the connecting block. Two side lugs of the U-shaped convex lug are clamped on the two sides of the connecting block, and third through holes are formed in the positions, corresponding to the second through holes, of the side lugs. The side turning shaft penetrates through the first through hole, the second through hole and the third through hole. And when the lamp hook is subjected to rollover operation, the U-shaped lug rotates around the rollover shaft. When the lamp hook rotates, the flat plate rotates around the stepped shaft. The structure of the lamp hook is tighter, and the stability and the use comfort level are higher.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of stage lamp accessories, in particular to a turning mechanism of a lamp hook. BACKGROUND

[0002] Television studios, theaters, concert halls, bars, mobile performance sites and other places need to use stage lamps to render the lighting environment. Since stage lamps need to be adjusted frequently according to the performance content, stage lamps are generally installed and fixed in a detachable manner, with the lamps being hung on a boom or truss through a lamp hook.

[0003] The prior art lamp hook generally includes a lamp hook body for hooking and clamping a boom, and a base. The base is connected to the lower end of the lamp hook body and is used to connect a lamp. In order to facilitate transportation and adjustment of the lamp, the prior art lamp hook is provided with a turning mechanism between the lamp hook body and the base. For example, CN201636794U discloses a detachable combined lamp hook that can be turned, which is provided with a turning connector between the lamp hook body and the base. The lamp hook body and the turning connector can be rotated by 360°, and the turning connector and the base can be turned by 90°. Most of the prior art lamp hooks that can be turned adopt this structure. Until the applicant disclosed a turning mechanism in CN214064831U, in which the turning connector and the base are hingedly connected to realize rotation, and the turning connector and the lamp hook body are hingedly connected to realize side turning. In the first embodiment disclosed in the document, when the lamp hook body is close to the base, it will affect the side turning operation of the lamp hook body, and when the lamp hook body is away from the base, it will produce a shaking space. In the second embodiment disclosed in the document, the nut on the turning connector is prone to loosening. Therefore, the technical solution disclosed in the document still has some deficiencies in product stability and use comfort. CONTENT OF THE UTILITY MODEL

[0004] In order to overcome the problems in the prior art, the present application provides a turning mechanism of a lamp hook, which has a more compact structure, higher stability and use comfort.

[0005] The present application provides a turning mechanism of a lamp hook, which is arranged between a lamp hook body and a base and includes a U-shaped lug and a flat plate connected to the lamp hook body and the base respectively. The lamp hook body refers to the lamp hook body for hooking and clamping a boom. The base refers to a component for connecting a lamp. Here, "connected to the lamp hook body and the base respectively" includes the case where the U-shaped lug is connected to the lamp hook body and the flat plate is connected to the base, and also includes the case where the U-shaped lug is connected to the base and the flat plate is connected to the lamp hook body. The U-shaped lug and the flat plate can be independent parts or parts belonging to the lamp hook body and the base respectively.

[0006] The thin end of the stepped shaft passes through the round hole on the plate which is matched with it, and the thin end of the stepped shaft is also provided with a radial first through hole. The bottom end of the connecting block is provided with a avoiding hole and is sleeved on the thin end of the stepped shaft, and the connecting block is provided with a second through hole at the position corresponding to the first through hole. The two side ears of the U-shaped lug are clamped on the two sides of the connecting block, and the third through hole is provided at the position corresponding to the second through hole of the side ear. A side turning shaft passes through the first through hole, the second through hole and the third through hole.

[0007] When the lamp hook is operated to turn over, the U-shaped lug rotates around the turning shaft. When the lamp hook is operated to turn, the plate rotates around the stepped shaft.

[0008] Preferably, a first elastic gasket is clamped between the shaft shoulder of the stepped shaft and the plate. The first elastic gasket generates a certain pre-tightening force between the connecting block and the plate, so that the lamp hook is more stable. When long-term use causes loosening, replacing the first elastic gasket with different thickness can re-form the pre-tightening force between the connecting block and the plate, thereby prolonging the service life of the lamp hook.

[0009] Preferably, a second elastic gasket is clamped between the connecting block and the side ear of the U-shaped lug. The second elastic gasket generates a certain pre-tightening force between the connecting block and the U-shaped lug, so that the lamp hook is more stable.

[0010] Preferably, the side turning shaft is a bolt, which is provided with a nut after passing through the first through hole, the second through hole and the third through hole. Compared with the riveting shaft used in some embodiments, the bolt structure is easy to disassemble and maintain.

[0011] Preferably, the thin end of the stepped shaft and the round hole of the plate, the side turning shaft and the first through hole, and the side turning shaft and the second through hole are all gap-fitted. The gap-fitting makes the side turning and turning operations more smooth, while maintaining the stability of the lamp hook.

[0012] Preferably, the top front edge or / and rear edge of the connecting block is provided with a circular arc chamfer to avoid interference with the U-shaped lug during side turning. When the top end of the connecting block is relatively close to the root of the U-shaped lug, interference during side turning needs to be avoided. In some embodiments, the gap between the top end of the connecting block and the root of the U-shaped lug can also be increased to achieve this purpose.

[0013] Preferably, the U-shaped lug is provided with a circular arc chamfer to avoid interference with the plate during side turning. If only one side turning is required, only one side of the U-shaped lug can be provided with a circular arc chamfer. If both sides need to be turned over, a circular arc chamfer needs to be provided on both sides.

[0014] The technical scheme provided by the application has the following beneficial effects: (1) the connecting block and the flat plate form surface contact, and the structure is stable and compact; (2) a certain gap can be reserved between the U-shaped lug and the flat plate, and the side turning operation is more smooth and comfortable; (3) only a few shafts and hole sleeves need to be connected during assembly, and the side turning shaft is finally fixed in the axial direction, so that the assembly process is simple; and the only installation fixing position is not between the components that are used for side turning and rotation in daily use, so that the fixing position is prevented from loosening during use. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a structural schematic diagram of a lamp hook.

[0016] Figure 2 is a left view of Figure 1 .

[0017] Figure 3 is a partial sectional view of a turnover mechanism of Figure 1 . DETAILED DESCRIPTION

[0018] The preferred embodiments of the application will be described in more detail below with reference to the accompanying drawings.

[0019] The terms used in the present application are merely for the purpose of describing particular embodiments and are not intended to limit the application. The singular forms "a," "an," and "the" used in the present application and the appended claims are intended to include plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used in the present application refers to and includes any or all possible combinations of one or more associated listed items.

[0020] It should be understood that although the terms "first", "second", "third", etc. can be used in the present application to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another.

[0021] To solve the above problems, the embodiments of the present application provide a turnover mechanism of a lamp hook, which has a more compact structure, higher stability and higher use comfort.

[0022] The technical scheme of the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0023] Referring to FIG. 1 to FIG. 3, the application provides a turnover mechanism 10 of a lamp hook, which is arranged between a lamp hook body 01 and a base 02, and comprises a U-shaped lug 11 and a flat plate 12 connected to the lamp hook body and the base respectively. The lamp hook body refers to the lamp hook body for hooking and clamping a hanger 00. The base refers to a component for connecting a lamp. A thin end of a stepped shaft 13 passes through a circular hole on the flat plate 12 which is matched with the thin end, and the thin end of the stepped shaft 13 is further provided with a radial first through hole; a bottom end of a connecting block 15 is provided with a clearance hole and is sleeved on the thin end of the stepped shaft 13, and the connecting block 15 is provided with a second through hole at a position corresponding to the first through hole; two side ears of the U-shaped lug 11 are clamped on two sides of the connecting block 15, and the side ears are provided with third through holes at positions corresponding to the second through hole; a side turnover shaft 14 passes through the first through hole, the second through hole and the third through hole.

[0024] A first elastic gasket 16 is clamped between the shaft shoulder of the stepped shaft 13 and the flat plate 12.

[0025] A second elastic gasket 17 is clamped between the connecting block 15 and the side ear of the U-shaped lug 11.

[0026] The side turnover shaft 14 is a bolt, and a nut 18 is arranged after the bolt passes through the first through hole, the second through hole and the third through hole.

[0027] The thin end of the stepped shaft 13 and the circular hole of the flat plate 12, the side turnover shaft 14 and the first through hole, and the side turnover shaft 14 and the second through hole are all gap-fitted.

[0028] The top end of the connecting block 15 is provided with a circular arc chamfer on the front edge or / and the rear edge to avoid interference with the U-shaped lug 11 during side turnover.

[0029] The U-shaped lug 11 is provided with a circular arc chamfer 111 to avoid interference with the flat plate 12 during side turnover.

[0030] The technical scheme provided by the application has the following beneficial effects: (1) The connecting block and the flat plate form a surface contact, and the structure is stable and compact; (2) A certain gap can be reserved between the U-shaped lug and the flat plate, and the side turnover operation is more smooth and comfortable; (3) Only a few shafts and holes need to be sleeved during assembly, and the side turnover shaft is finally fixed in the axial direction, so that the assembly process is simple; and the only installation and fixing position is not between the components for daily use side turnover and rotation, so that the installation and fixing position is prevented from loosening during use; (4) The first elastic gasket and the second elastic gasket generate a pre-tightening force between the movable components, the lamp hook is more stable, and different thicknesses of elastic gaskets can be replaced when worn.

[0031] The preferred embodiments of the application have been described above with the understanding that these descriptions are exemplary only, and are not intended to be exhaustive or to limit the embodiments disclosed to the precise details of description. Changes and modifications obvious to one of ordinary skill in the art are intended to be subsumed within the scope of the described embodiments. The selection of words used in this document is intended to best explain the principles of the embodiments, the practical application of the embodiments, or the improvement of the technology in the art, or to enable other ordinary skilled in the art to understand the embodiments disclosed herein.

[0032] It is especially important to note that the "respectively connected to the lamp hook body and the base" of the present application includes the case of U-shaped lug connected to the lamp hook body and the flat plate connected to the base, and also includes the case of U-shaped lug connected to the base and the flat plate connected to the lamp hook body. The U-shaped lug and the flat plate can be independent parts, or can be part of the lamp hook body and the base, respectively.

Claims

1. A flipping mechanism for a lamp hook, characterized in that: Includes a U-shaped lug (11) and a flat plate (12) respectively connected to the lamp hook body and the base; the thin end of a stepped shaft (13) passes through a round hole on the flat plate (12) that is adapted to it, and the thin end of the stepped shaft (13) is also provided with a first radial through hole; the bottom end of a connecting block (15) is provided with a clearance hole and is sleeved on the thin end of the stepped shaft (13), and the connecting block (15) is provided with a second through hole at the position corresponding to the first through hole; the two side ears of the U-shaped lug (11) are engaged on both sides of the connecting block (15), and the side ears are provided with a third through hole at the position corresponding to the second through hole; a side flip shaft (14) passes through the first through hole, the second through hole, and the third through hole.

2. The flipping mechanism of the lamp hook according to claim 1, characterized in that: A first elastic washer (16) is sandwiched between the shoulder of the stepped shaft (13) and the flat plate (12).

3. The flipping mechanism of the lamp hook according to claim 1, characterized in that: A second elastic pad (17) is sandwiched between the connecting block (15) and the side ear of the U-shaped lug (11).

4. The flipping mechanism of the lamp hook according to claim 1, characterized in that: The side-tilting shaft (14) is a bolt, and a nut (18) is provided after passing through the first through hole, the second through hole, and the third through hole.

5. The flipping mechanism of the lamp hook according to claim 1, characterized in that: The fine end of the stepped shaft (13) and the round hole of the flat plate (12), the side-tilting shaft (14) and the first through hole, and the side-tilting shaft (14) and the second through hole are all clearance fits.

6. The flipping mechanism of the lamp hook according to claim 1, characterized in that: The top front edge and / or rear edge of the connecting block (15) are provided with rounded chamfers to avoid interference with the U-shaped lug (11) when it rolls over.

7. The flipping mechanism of the lamp hook according to claim 1, characterized in that: The U-shaped lug (11) is provided with a rounded chamfer (111) to prevent interference with the flat plate (12) when it is overturned.

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