Waterproof stage lamp and waterproof rotating shaft structure

Abstract

The application relates to a waterproof stage lamp, which comprises a head, an arm and a base, the arm and the head are rotationally connected through a rotating shaft structure, the base and the arm are rotationally connected through the rotating shaft structure, the rotating shaft structure comprises a rotating shaft seat and a rotating shaft sleeve sleeved on the rotating shaft seat, bearings are sleeved between the rotating shaft seat and the rotating shaft sleeve, oil seals are also sleeved between the rotating shaft seat and the rotating shaft sleeve, a through hole is arranged at the end of the rotating shaft seat, a slip ring is arranged in the through hole, a sealing plug is arranged in the through hole in interference fit, a plurality of wire holes are arranged at the end of the sealing plug, the slip ring is provided with a plurality of electric wires for electric connection, the electric wires are correspondingly arranged in the wire holes and are in interference fit with the wire holes, compared with the prior art, the waterproof level of the stage lamp is improved, the waterproof requirement of the arm is effectively reduced, the waterproof ring and more locking screws are not needed on the arm side cover, the material cost is reduced, and the assembly efficiency of the arm is improved.

Description

Technical Field

[0001] This invention relates to the field of lighting technology, and more particularly to a waterproof stage lamp and its pivot structure. Background Technology

[0002] In the field of stage lighting equipment, stage lights typically employ an arm structure to achieve multi-angle adjustment and stable support. The side end caps of the arm, as key components, not only protect the internal components but also require excellent sealing performance to prevent the intrusion of external environmental factors such as dust and moisture, which could affect the reliability and lifespan of the lighting fixture.

[0003] Currently, traditional side-end cover sealing methods mainly rely on a structural design that combines sealing strips with screws for fixation. Specifically, the edge of the side-end cover is initially sealed by installing a sealing strip (such as a rubber strip or silicone strip), and then multiple screws are used to press the side-end cover tightly onto the arm body to ensure a tight fit between the sealing strip and the contact surface, as illustrated in the Chinese utility model disclosure of a stage LED lighting jib arm (publication number CN222335325U). However, this design has the following significant drawbacks: High consumable costs: Sealing strips are easily damaged parts, and after long-term use they are prone to aging, deformation or wear, requiring regular replacement, which increases maintenance costs and material waste.

[0004] Complex structure and low assembly efficiency: To ensure sealing, a large number of screws need to be arranged around the perimeter of the side end cover, which increases the number of parts and makes the installation steps cumbersome, which not only increases production costs but also reduces production efficiency.

[0005] Limited sealing reliability: Uneven screw distribution or insufficient tightening force can easily lead to poor local sealing, especially under vibration or temperature change conditions, the sealing strip may fail due to uneven pressure.

[0006] Therefore, there is an urgent need for a new type of sealing structure for the side end cap of the stage light arm, which can improve sealing performance and ease of assembly while reducing the use of consumables and the reliance on screws, thereby solving the shortcomings of existing technologies. Summary of the Invention

[0007] To solve one of the above-mentioned technical problems, this invention provides a waterproof stage light and a waterproof hinge structure, which has a high sealing and waterproof effect.

[0008] To solve the above-mentioned technical problems, the present invention provides the following technical solution: A waterproof stage light includes a head, an arm, and a base. The arm and head, as well as the arm and base, are rotatably connected via a pivot structure. The pivot structure includes a pivot seat and a pivot sleeve fitted onto the pivot seat. A bearing is fitted between the pivot seat and the pivot sleeve to allow relative rotation between them. An oil seal is also fitted between the pivot seat and the pivot sleeve to ensure a sealed connection. A through hole is provided at the end of the pivot seat, in which a slip ring is installed. A sealing plug with an interference fit is also provided in the through hole. A plurality of wire holes are provided at the end of the sealing plug. The slip ring has a plurality of wires for electrical connection, and the plurality of wires are threaded one-to-one through the wire holes and interference-fitted with the corresponding wire holes.

[0009] Further defined, the through hole is divided into two sections, including a first section through hole for accommodating a sealing plug and a second section through hole for accommodating a slip ring. The diameter of the first section through hole gradually decreases along the insertion direction of the sealing plug, making this part of the through hole conical in shape.

[0010] Further defined, the arm portion has an internal waterproof cavity for accommodating the wiring terminals, the waterproof cavity having an inlet hole and an outlet hole, the inlet hole and the outlet hole being respectively interference-fitted by another sealing plug.

[0011] Further defined, the waterproof cavity has an opening, the waterproof cavity is detachably connected to a sealing cap, and the opening of the waterproof cavity and the sealing cap are sealed together by a first waterproof sealing strip.

[0012] Further specified, the diameter of the inlet hole and the diameter of the outlet hole both gradually decrease along the insertion direction of the sealing plug to form a conical shape.

[0013] Further defined, the head has an upper and lower structure, including an upper shell and a lower shell. The upper shell has a first end face, and the lower shell has a second end face. The upper shell and the lower shell are fitted together through the first end face and the second end face. A portion of the first end face protrudes downward to form an annular flange, while another portion of the first end face forms a stepped surface. The second end face of the lower shell is recessed to form an annular groove. A second waterproof sealing strip is provided in the annular groove. When the upper shell and the lower shell are locked, the annular flange and the second waterproof sealing strip are in sealing contact, while the top surface of the stepped surface and the top surface of the annular groove support each other.

[0014] Further defined, the rotating shaft structure is divided into two sets of rotating components, including an X-axis rotating component and a Y-axis rotating component. The arm and the head are rotatably connected via the Y-axis rotating component, and the base and the arm are rotatably connected via the X-axis rotating component. The rotating shaft sleeve in the Y-axis rotating component has a shaft body and a baffle portion disposed on the outer circumferential surface of the shaft body. A corner portion is formed at the connection between the shaft body and the baffle portion. The head is provided with a mating hole adapted to the shaft body. An annular arc groove is provided at the edge of the opening of the mating hole. A third waterproof sealing strip is adapted to be installed in the annular arc groove. When the rotating shaft sleeve and the head are locked, the annular arc groove and the corner portion are sealed and connected by the third waterproof sealing strip. At this time, the circumferential surface of the head and the baffle portion abut against each other, and the shaft body is adapted to be inserted into the mating hole.

[0015] A waterproof rotating shaft structure includes a rotating shaft seat and a rotating shaft sleeve fitted on the rotating shaft seat. A bearing is fitted between the rotating shaft seat and the rotating shaft sleeve to allow relative rotation between them. An oil seal is also fitted between the rotating shaft seat and the rotating shaft sleeve to ensure a sealed connection between them. A through hole is provided at the end of the rotating shaft seat, in which a slip ring is installed. A sealing plug with an interference fit is also provided in the through hole. A plurality of wire holes are provided at the end of the sealing plug. The slip ring has a plurality of wires for electrical connection, and each of the wires is correspondingly threaded through and interference-fitted with the corresponding wire hole.

[0016] Further defined, the through hole is divided into two sections, including a first section through hole for accommodating a sealing plug and a second section through hole for accommodating a slip ring. The diameter of the first section through hole gradually decreases along the insertion direction of the sealing plug, making this part of the through hole conical in shape.

[0017] Further defined, the rotating shaft seat is fixedly provided with an annular pressing plate for pressing the sealing plug.

[0018] By adopting the above technical solution, the present invention has at least the following beneficial effects: A sealing plug with an interference fit is also provided in the through hole, and several wire holes are provided through the end of the sealing plug. The slip ring has several wires for electrical connection, and the wires are correspondingly inserted into the wire holes and interference-fitted with the corresponding wire holes. The through hole of the rotating shaft seat is sealed by the sealing plug, thereby preventing moisture from entering the head or base. Compared with the prior art, while improving the waterproof level of the stage light, the waterproof requirements of the arm can be effectively reduced. The side cover of the arm does not require a waterproof ring or more locking screws, reducing material costs and improving the assembly efficiency of the arm. Attached Figure Description

[0019] Figure 1 This is a structural diagram of a stage light; Figure 2 This is a cross-sectional view of a stage light; Figure 3 yes Figure 2 Enlarged view of point A; Figure 4 This is an exploded view of the shaft structure; Figure 5 This is a diagram of the head structure. Detailed Implementation

[0020] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] In the description of this invention, it should be understood that the terms "center," "middle," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0022] As attached Figure 1 As shown, a waterproof stage light includes a head 1, an arm 2, and a base 3. The arm 2 and the head 1, as well as the arm 2 and the base 3, are rotatably connected by a pivot structure. The pivot structure includes a pivot seat 4 and a pivot sleeve 5 fitted onto the pivot seat 4. A bearing 6 is fitted onto the pivot seat 4 and the pivot sleeve 5 to allow relative rotation between the pivot seat 4 and the pivot sleeve 5. An oil seal 7 is also fitted onto the pivot seat 4 and the pivot sleeve 5 to ensure a sealed connection between the pivot seat 4 and the pivot sleeve 5. Specifically, one set of pivot seats 4 is used to fixably connect to the arm 2, and the pivot sleeve 5 is used to fixably connect to the head 1, thereby achieving a rotatable connection between the arm 2 and the head 1; another set of pivot seats 4 is used to fixably connect to the bottom of the arm 2, and the pivot sleeve 5 is used to fixably connect to the base 3, thereby achieving rotation between the base 3 and the arm 2.

[0023] As attached Figure 2As shown, a through hole 40 is provided at the end of the rotating shaft seat 4. A slip ring 41 is installed in the through hole 40 for power, signal, and data transmission, avoiding the traditional cable tangling problem caused by equipment rotation. A sealing plug 8 with an interference fit is also provided in the through hole 40. Several wire holes 80 are provided at the end of the sealing plug 8. The slip ring 41 has several wires 411 for electrical connection. The wires 411 are correspondingly inserted into the wire holes 80 and have an interference fit with the corresponding wire holes 80. The through hole 40 of the rotating shaft seat 4 is sealed by the sealing plug 8 to prevent moisture from entering the head 1 or the base 3. Compared with the prior art, while improving the waterproof level of the stage light, the waterproof requirements of the arm 2 can be effectively reduced. The side cover of the arm does not require a waterproof ring or more locking screws, reducing consumable costs and improving the assembly efficiency of the arm 2.

[0024] As attached Figure 3 As shown, the through hole 40 is divided into two sections, including a first section for accommodating the sealing plug 8 and a second section for accommodating the slip ring 41. The diameter of the first section gradually decreases along the insertion direction of the sealing plug 8, making this part of the through hole 40 conical in shape. This allows the sealing plug 8 to be inserted more and more tightly, thus achieving a better sealing effect. Furthermore, the outer end of the sealing plug 8 is pressed by the annular pressing plate 9 to prevent the sealing plug 8 from popping out due to elasticity.

[0025] As attached Figure 2 As shown, in order to make the head 1 and the base 3 electrically connected, the wire 411 of the slip ring 41 needs to be extended through the terminal block 200. At the same time, the waterproof effect of the terminal block 200 needs to be ensured. Therefore, the inside of the arm 2 is provided with a waterproof cavity 20 for accommodating the terminal block 200. The waterproof cavity 20 has an inlet hole 201 and an outlet hole 202. The inlet hole 201 and the outlet hole 202 are respectively interference-fitted by another sealing plug 8. The waterproof cavity 20 thus achieves a sealing and waterproof effect.

[0026] Furthermore, the waterproof cavity 20 has an opening, and a sealing cover 203 is detachably connected to the waterproof cavity 20. The opening of the waterproof cavity 20 and the sealing cover 203 are sealed together by a first waterproof sealing strip 204 to seal the opening of the waterproof cavity 20. At the same time, the sealing cover 203 can also be disassembled to facilitate the insertion and installation of the wiring terminal 200.

[0027] Furthermore, the diameters of the inlet hole 201 and the outlet hole 202 are gradually reduced along the insertion direction of the sealing plug 8 to form a cone shape. Similarly, the sealing plug 8 is tightened more and more to achieve a better sealing effect.

[0028] As attached Figure 5As shown, the head 1 has an upper and lower structure, including an upper shell 11 and a lower shell 12. The upper shell 11 has a first end face 110, and the lower shell 12 has a second end face 120. The upper shell 11 and the lower shell 12 are attached to each other through the first end face 110 and the second end face 120. A part of the first end face 110 protrudes downward to form an annular flange 111, while another part of the first end face 110 forms a stepped surface 112. Compared with the prior art, which uses a plane to seal the contact with the sealing strip, the stepped first end face 110 of the upper shell 11 in this application has a better sealing effect with the sealing strip, and the upper shell 11 is thinner, making it lighter.

[0029] Specifically, the second end face 120 of the lower housing 12 is recessed to form an annular groove 121. A second waterproof sealing strip 122 is provided in the annular groove 121. When the upper housing 11 and the lower housing 12 are locked, the annular flange 111 and the second waterproof sealing strip 122 are in sealing contact, which improves the tightness of the upper housing 11 and the second waterproof sealing strip 122. The stepped surface 112 and the top surface of the annular groove 121 support each other. The stepped surface 112 not only plays a positioning role, but also a limiting role. While improving the assembly efficiency of the upper and lower housings 12, it prevents the annular flange 111 from losing its waterproofness due to excessive pressure on the second waterproof sealing strip 122.

[0030] As attached Figure 2 and attached Figure 4 As shown, the rotating shaft structure is divided into two sets of rotating components, including an X-axis rotating component 400 and a Y-axis rotating component 500. The arm 2 and the head 1 are rotatably connected by the Y-axis rotating component 500, and the base 3 and the arm 2 are rotatably connected by the X-axis rotating component 400. The rotating shaft sleeve 5 in the Y-axis rotating component 500 has a shaft body 51 and a baffle part 52 disposed on the outer circumferential surface of the shaft body 51. A corner portion with a vertical angle is formed at the connection between the shaft body 51 and the baffle part 52. The head 1 is provided with a mating hole 10 that is adapted to the shaft body 51. An annular arc groove 101 is provided at the edge of the opening of the mating hole 10. A third waterproof sealing strip 102 is adapted to be installed in the annular arc groove 101. The annular arc groove 101 is beneficial to improve the sealing fit between the third waterproof sealing strip 102 and the head 1, and enhance the sealing effect. When the rotating bushing 5 and the head 1 are locked, the annular arc groove 101 and the corner are sealed and connected by the third waterproof sealing strip 102. The outer periphery of the third waterproof sealing strip 102 simultaneously seals and contacts the shaft body 51 and the baffle 52, achieving multiple sealing effects. At the same time, the circumferential surface of the head 1 and the baffle 52 abut against each other, while the shaft body 51 is adapted to pass through the mating hole 10.

[0031] As attached Figure 3 and attachedFigure 4 As shown, a waterproof rotating shaft structure includes a rotating shaft seat 4 and a rotating shaft sleeve 5 fitted onto the rotating shaft seat 4. A bearing 6 is fitted onto the rotating shaft seat 4 and the rotating shaft sleeve 5 to allow relative rotation between them. An oil seal 7 is also fitted onto the rotating shaft seat 4 and the rotating shaft sleeve 5 to ensure a sealed connection between them. A through hole 40 is provided at the end of the rotating shaft seat 4, and a slip ring 41 is installed in the through hole 40. The 40 is also provided with an interference fit sealing plug 8, the end of which is provided with a plurality of wire holes 80. The slip ring 41 has a plurality of wires 411 for electrical connection. The plurality of wires 411 are respectively inserted through the wire holes 80 and are interference fit with the corresponding wire holes 80. This waterproof rotating shaft structure can be applied to the connection structure between the stage lamp head 1 and the arm 2, and the connection structure between the arm 2 and the base 3, so as to achieve a waterproof effect; reduce the waterproof support requirements and save waterproof materials and costs for the arm 2.

[0032] In this embodiment, the through hole 40 is divided into two sections, including a first section for accommodating the sealing plug 8 and a second section for accommodating the slip ring 41. The diameter of the first section gradually decreases along the insertion direction of the sealing plug 8, making this part of the through hole 40 conical in shape. This allows the sealing plug 8 to be inserted more and more tightly, resulting in a better sealing effect.

[0033] In this embodiment, the rotating shaft seat 4 is fixedly provided with an annular pressing plate 9 for pressing the sealing plug 8. The annular pressing plate 9 can press the sealing plug 8 to prevent the sealing plug 8 from popping out due to elasticity.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various equivalent changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A waterproof stage light, comprising a head (1), an arm (2), and a base (3), wherein the arm (2) and the head (1) are rotatably connected by a pivot structure, the pivot structure comprising a pivot seat (4) and a pivot sleeve (5) fitted on the pivot seat (4), the pivot seat (4) being fitted with a bearing (6) located between the pivot seat (4) and the pivot sleeve (5) to allow relative rotation between the pivot seat (4) and the pivot sleeve (5), the pivot seat (4) also being fitted with an oil seal (7) located between the pivot seat (4) and the pivot sleeve (5) to provide a sealed connection between the pivot seat (4) and the pivot sleeve (5), and a through hole (40) being provided through the end of the pivot seat (4), wherein a slip ring (41) is installed in the through hole (40), characterized in that, The through hole (40) is also provided with a sealing plug (8) that is interference-fitted with it. The end of the sealing plug (8) is provided with a plurality of wire holes (80). The slip ring (41) has a plurality of wires (411) for electrical connection. The plurality of wires (411) are respectively passed through the wire holes (80) and are interference-fitted with the corresponding wire holes (80).

2. The stage light according to claim 1, characterized in that, The through hole (40) is divided into two sections, including a first section through hole for placing the sealing plug (8) and a second section through hole for placing the slip ring (41). The diameter of the first section through hole gradually decreases along the insertion direction of the sealing plug (8), making this part of the through hole (40) conical.

3. The stage light according to claim 1, characterized in that, The arm (2) has a waterproof cavity (20) inside for accommodating the terminal block (200). The waterproof cavity (20) has an inlet hole (201) and an outlet hole (202). The inlet hole (201) and the outlet hole (202) are respectively press-fitted by another sealing plug (8).

4. The stage light according to claim 3, characterized in that, The waterproof cavity (20) has an opening, and the waterproof cavity (20) is detachably connected to a sealing cap (203). The opening of the waterproof cavity (20) and the sealing cap (203) are sealed together by a first waterproof sealing strip (204).

5. The stage light according to claim 3, characterized in that, The diameter of the inlet hole (201) and the diameter of the outlet hole (202) are both gradually reduced along the insertion direction of the sealing plug (8) to make them conical.

6. The stage light according to claim 1, characterized in that, The head (1) has an upper and lower structure, including an upper shell (11) and a lower shell (12). The upper shell (11) has a first end face (110), and the lower shell (12) has a second end face (120). The upper shell (11) and the lower shell (12) are attached to each other through the first end face (110) and the second end face (120) of the lower shell (12). A part of the first end face (110) protrudes downward to form an annular flange (111), while another part of the first end face (110) forms a stepped surface (112). The second end face (120) of the lower shell (12) is recessed to form an annular groove (121). A second waterproof sealing strip (122) is provided in the annular groove (121). When the upper shell (11) and the lower shell (12) are locked, the annular flange (111) and the second waterproof sealing strip (122) are in sealed contact, while the top surfaces of the stepped surface (112) and the annular groove (121) support each other.

7. The stage light according to claim 1, characterized in that, The rotating shaft structure is divided into two sets of rotating components, including an X-axis rotating component (400) and a Y-axis rotating component (500). The arm (2) and the head (1) are rotatably connected by the Y-axis rotating component (500), and the base (3) and the arm (2) are rotatably connected by the X-axis rotating component (400). The rotating shaft sleeve (5) in the Y-axis rotating component (500) has a shaft body (51) and a baffle (52) disposed on the outer circumferential surface of the shaft body (51). A corner is formed at the connection between the shaft body (51) and the baffle (52). The head (1) has a mating hole (10) that is compatible with the shaft part (51). An annular arc groove (101) is provided at the edge of the opening of the mating hole (10). A third waterproof sealing strip (102) is installed in the annular arc groove (101). When the rotating shaft sleeve (5) and the head (1) are locked, the annular arc groove (101) and the corner part are sealed and connected by the third waterproof sealing strip (102). At this time, the circumferential surface of the head (1) and the baffle part (52) abut against each other, and the shaft part (51) is adapted to pass through the mating hole (10).

8. A waterproof rotating shaft structure, comprising a rotating shaft seat (4) and a rotating shaft sleeve (5) sleeved on the rotating shaft seat (4), wherein the rotating shaft seat (4) is fitted with a bearing (6) located between the rotating shaft seat (4) and the rotating shaft sleeve (5) to allow relative rotation between the rotating shaft seat (4) and the rotating shaft sleeve (5), wherein the rotating shaft seat (4) is also fitted with an oil seal (7) located between the rotating shaft seat (4) and the rotating shaft sleeve (5) to provide a sealed connection between the rotating shaft seat (4) and the rotating shaft sleeve (5), wherein a through hole (40) is provided through the end of the rotating shaft seat (4), and a slip ring (41) is installed in the through hole (40), characterized in that, The through hole (40) is also provided with a sealing plug (8) that is interference-fitted with it. The end of the sealing plug (8) is provided with a plurality of wire holes (80). The slip ring (41) has a plurality of wires (411) for electrical connection. The plurality of wires (411) are respectively passed through the wire holes (80) and are interference-fitted with the corresponding wire holes (80).

9. The rotating shaft structure according to claim 8, characterized in that, The through hole (40) is divided into two sections, including a first section through hole for placing the sealing plug (8) and a second section through hole for placing the slip ring (41). The diameter of the first section through hole gradually decreases along the insertion direction of the sealing plug (8), making this part of the through hole (40) conical.

10. The rotating shaft structure according to claim 8, characterized in that, The rotating shaft seat (4) is fixedly provided with an annular pressing plate (9) for pressing the sealing plug (8).

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