Focusing device of stage lamp

Abstract

The utility model relates to a stage lamp focusing device which comprises a base, an object carrier, a guide sleeve and a guide shaft, the guide shaft is vertically arranged on the base, the object carrier is fixedly connected with the guide sleeve, the guide sleeve is provided with a sleeving hole matched with the guide shaft, and the guide sleeve is in sliding connection with the guide shaft through the sleeving hole so that the object carrier can move in the axial direction of the guide shaft along with the guide sleeve. A containing groove which is communicated with the sleeving hole and used for storing a lubricating agent is formed in the inner circumferential face of the sleeving hole, the solid or semi-solid lubricating agent is placed in the containing groove, and the main function of the containing groove is that a protective film is formed between the contact surfaces of the guide sleeve and the guide shaft, so that friction and abrasion are reduced, heat generated when equipment runs is reduced, and the service life of the guide sleeve is prolonged. Therefore, the lens of the focusing device slides more smoothly in a focusing manner and is not easy to be blocked.

Description

Technical Field

[0001] The invention relates to the technical field of stage lamp lighting, and in particular to a focusing device for a stage lamp. Background Art

[0002] The focusing device structure of the existing stage lamp is: a lens is arranged on the carrier, and a motor drives the carrier to move up and down on the guide shaft along with the guide sleeve through a conveyor belt to realize the function of lens focusing; because there is always friction between the guide sleeve and the guide shaft, the guide sleeve does not slide smoothly on the guide shaft, and jamming is prone to occur. Summary of the invention

[0003] The present invention is to solve one of the above technical problems and provide a focusing device for a stage light that can slide smoothly and is not prone to jamming.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] A focusing device for a stage lamp comprises a base, a carrier, a guide sleeve and a guide shaft, wherein the guide shaft is vertically arranged on the base, the carrier is fixedly connected to the guide sleeve, the guide sleeve is provided with a sleeve hole adapted to the guide shaft, the guide sleeve is slidably connected to the guide shaft through the sleeve hole so that the carrier moves along with the guide sleeve in the axial direction of the guide shaft, and the inner circumferential surface of the sleeve hole is provided with a receiving groove which is communicated with the sleeve hole and is used to store a lubricant.

[0006] As a preferred embodiment, it is further defined that a plurality of the accommodating grooves are provided, and the plurality of the accommodating grooves are evenly distributed around the center of the sleeve hole.

[0007] As a preferred embodiment, it is further defined that the accommodating groove has a first opening with a notch facing the center of the sleeve hole, and the accommodating groove is communicated with the sleeve hole through the first opening.

[0008] As a preferred embodiment, it is further defined that the accommodating groove is arranged to penetrate along the axial direction of the guide sleeve so that second openings are formed at both ends of the guide sleeve.

[0009] As a preferred embodiment, it is further defined that the radial cross-section of the accommodating groove is rectangular.

[0010] As a preferred embodiment, it is further defined that the guide sleeve includes a sleeve main body and a lug portion integrally formed with one end of the sleeve main body, and after the other end of the sleeve main body passes through the load from top to bottom, the lug portion is fixedly connected to the load by a threaded fastener.

[0011] After adopting the above technical scheme, the invention has at least the following beneficial effects: a solid or semi-solid lubricant is placed in the accommodating groove, and its main function is to form a protective film between the contact surfaces of the guide sleeve and the guide shaft to reduce friction and wear, and reduce heat generation during equipment operation, thereby making the focusing device's lens focusing and sliding smoother and less prone to jamming. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a structural diagram of a focusing device;

[0013] Figure 2 It is an exploded view of the focusing device;

[0014] Figure 3 It is a structural diagram of the guide sleeve;

[0015] Figure 4 It is a cross-sectional view of the guide sleeve. DETAILED DESCRIPTION

[0016] It should be noted that, in the absence of conflict, the embodiments in the present application and the features described in the embodiments may be combined with each other. The present application is further described in detail below in conjunction with the drawings and specific embodiments.

[0017] As attached Figure 1 To Attachment Figure 4 As shown, a focusing device for a stage light comprises a base 1, a carrier 2, a guide sleeve 3 and a guide shaft 4, wherein the guide shaft 4 is vertically arranged on the base 1, the carrier 2 is fixedly connected to the guide sleeve 3, the guide sleeve 3 is provided with a sleeve hole 31 adapted to the guide shaft 4, the guide sleeve 3 is slidably connected to the guide shaft 4 through the sleeve hole 31 so that the carrier 2 moves along with the guide sleeve 3 in the axial direction of the guide shaft 4, the inner circumferential surface of the sleeve hole 31 is provided with a receiving groove 32 which is communicated with the sleeve hole 31 and is used to store lubricant, preferably, a solid or semi-solid lubricant is placed in the receiving groove 32, the main function of which is to form a protective film between the contact surfaces between the guide sleeve 3 and the guide shaft 4 to reduce friction and wear, and reduce heat generation during the operation of the equipment, thereby making the focusing and sliding of the lens of the focusing device smoother and less prone to jamming.

[0018] As attached Figure 3 As shown, a plurality of accommodating grooves 32 are provided, and the plurality of accommodating grooves 32 are evenly distributed around the center of the sleeve hole 31, so that lubricant is stored in multiple positions of the guide sleeve 3, and the contact surface between the guide sleeve 3 and the guide shaft 4 is evenly coated with lubricant.

[0019] As attached Figure 4As shown, the receiving groove 32 has a first opening 321 with a notch facing the center of the sleeve hole 31 , and the receiving groove 32 is communicated with the sleeve hole 31 through the first opening 321 , so that the lubricant can flow out from the first opening 321 .

[0020] As attached Figure 4 As shown, the receiving groove 32 is arranged to penetrate along the axial direction of the guide sleeve 3 so that second openings 322 are formed at both ends of the guide sleeve 3. The radial cross-section of the receiving groove 32 is rectangular, which is convenient for adding lubricant from the second opening 322 at the upper end of the guide sleeve 3 and reduces the disassembly of parts after assembly.

[0021] As attached Figure 2 and attached Figure 3 As shown, the guide sleeve 3 includes a sleeve body 301 and a lug 302 integrally formed with one end of the sleeve body 301. After the other end of the sleeve body 301 passes through the load 2 from top to bottom, the lug 302 is fixedly connected to the load 2 through a threaded fastener. During installation, the sleeve body 301 of the guide sleeve 3 is first passed through the load 2 until the lug 302 abuts against the load 2, and then the two are fixedly connected through a threaded fastener. This structure is easy to install and has high assembly efficiency.

[0022] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various equivalent changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A focusing device for a stage light, comprising a base (1), a carrier (2), a guide sleeve (3) and a guide shaft (4), wherein the guide shaft (4) is vertically arranged on the base (1), the carrier (2) is fixedly connected to the guide sleeve (3), the guide sleeve (3) is provided with a sleeve hole (31) adapted to the guide shaft (4), the guide sleeve (3) is slidably connected to the guide shaft (4) through the sleeve hole (31), so that the carrier (2) moves along the guide sleeve (3) in the axial direction of the guide shaft (4), characterized in that: The inner circumferential surface of the sleeve hole (31) is provided with a receiving groove (32) which is in communication with the sleeve hole (31) and is used for storing lubricant.

2. The focusing device according to claim 1, characterized in that: A plurality of the accommodating grooves (32) are provided, and the plurality of the accommodating grooves (32) are evenly distributed around the center of the sleeve hole (31).

3. The focusing device according to claim 2, characterized in that: The accommodating groove (32) has a first opening (321) with a notch facing the center of the sleeve hole (31), and the accommodating groove (32) is connected to the sleeve hole (31) through the first opening (321).

4. The focusing device according to claim 3, characterized in that: The accommodating groove (32) is arranged to penetrate along the axial direction of the guide sleeve (3) so that second openings (322) are formed at both ends of the guide sleeve (3).

5. The focusing device according to claim 2, characterized in that: The radial cross section of the accommodating groove (32) is rectangular.

6. The focusing device according to any one of claims 1 to 5, characterized in that: The guide sleeve (3) comprises a sleeve main body (301) and a lug (302) integrally formed with one end of the sleeve main body (301); after the other end of the sleeve main body (301) passes through the load (2) from top to bottom, the lug (302) is fixedly connected to the load (2) via a threaded fastener.

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