Coaxiality adjusting structure and lamp

Abstract

The utility model discloses a coaxiality adjusting structure and a lamp. The coaxiality adjusting structure comprises a mounting part, a first moving part, a transmission part and an adjusting part, and the mounting part is used for mounting a lens; the mounting piece is connected with the first moving piece; the first moving part is movably arranged outside the transmission part in a sleeving manner, and the transmission part can drive the first moving part to reciprocate in the length direction of the transmission part, so that the mounting part is driven to reciprocate in the length direction of the transmission part; the adjusting part is arranged between the mounting part and the first moving part, so that the first moving part has a radial degree of freedom, and the first moving part can be kept coaxial with the transmission part. When the transmission part swings in the horizontal direction, the first moving part can also move in the radial direction, so that radial force caused by too large coaxiality error can be automatically counteracted, and a lens assembly of the lamp can move smoothly without being blocked. The lamp comprises the coaxiality adjusting structure. The utility model belongs to the technical field of lamps.

Description

Technical Field

[0001] The present application relates to the technical field of lamps, and particularly relates to a coaxiality adjustment structure and a lamp. Background Art

[0002] LED moving head lights can be used to enhance the stage effect and create a stage atmosphere. LED moving head lights generally have functions such as focusing and dimming. Generally, an LED moving head light includes a relatively large and heavy lens assembly. In the related art, the LED moving head light drives the lens assembly to move up and down by setting a transmission mechanism, so as to achieve the focusing function.

[0003] Generally, the transmission mechanism includes a driving motor, a transmission rod, and a slider. The slider is movably installed on the transmission rod, and the slider is connected to the lens assembly. The driving shaft of the driving motor is connected to the transmission rod to drive the transmission rod to rotate, so as to drive the slider to reciprocate along the length direction of the transmission rod, and then drive the lens assembly to move up and down. However, due to the relatively long transmission rod of the transmission rod motor and single-end drive, the transmission rod will have radial swing, resulting in the non-coaxiality between the slider on the transmission rod and the transmission rod, thereby generating radial force. Moreover, the swings of multiple transmission rods also have anisotropy in direction, which will cause the movement of the lens assembly to be stuck. Seriously, it will cause the lens assembly to be stuck and stop running, resulting in the inability of the LED moving head light to achieve the focusing function. Summary of the Utility Model

[0004] The present application aims to at least solve one of the above technical problems in the prior art to a certain extent. For this reason, the first aspect embodiment of the present application provides a coaxiality adjustment structure, which can prevent the movement of the lens assembly of the lamp from being stuck.

[0005] The second aspect embodiment of the present application provides a lamp having the above coaxiality adjustment structure.

[0006] According to the coaxiality adjustment structure of the first aspect embodiment of the present application, it includes: a mounting member for mounting a lens; a first moving member, the mounting member is connected to the first moving member; a transmission member, the first moving member is movably sleeved outside the transmission member, and the transmission member can drive the first moving member to reciprocate along the length direction of the transmission member, so as to drive the mounting member to reciprocate along the length direction of the transmission member; an adjusting member, the adjusting member is arranged between the mounting member and the first moving member, so that the first moving member has radial freedom, and further enables the first moving member to be coaxial with the transmission member.

[0007] Based on the above technical solution, the embodiments of the present application have at least the following beneficial effects: by setting an adjustment member between the mounting member and the first movable member, the first movable member has radial freedom, and when the transmission member swings in the horizontal direction, the first movable member can also move radially, thereby automatically offsetting the radial force caused by excessive coaxiality error, and the lens assembly of the lamp can move smoothly without jamming.

[0008] According to the coaxiality adjustment structure of the first aspect embodiment of the present application, the coaxiality adjustment structure also includes a first fastener, which is passed through the mounting member and the first movable member to connect the mounting member with the first movable member, and the adjustment member is arranged between the mounting member and the first fastener.

[0009] According to the coaxiality adjustment structure of the first embodiment of the present application, the adjusting member is an elastically deformable member, and when the transmission member swings, the first movable member squeezes the elastically deformable member to maintain coaxiality with the transmission member.

[0010] According to the coaxiality adjustment structure of the first embodiment of the present application, the adjusting member is a rubber ring, the rubber ring is sleeved on the outside of the first fastener, and a spacer is provided between the first fastener and the adjusting member, the spacer is also sleeved on the outside of the first fastener.

[0011] According to the coaxiality adjustment structure of the first aspect embodiment of the present application, the first fastener is a fastening bolt, the bolt head of the fastening bolt is located on the side of the mounting member away from the first movable member, and a limiting gasket is arranged between the bolt head and the mounting member, the limiting gasket is sleeved on the outside of the screw rod of the fastening bolt, and the outer diameter of the limiting gasket is larger than the outer diameter of the rubber ring.

[0012] According to the coaxiality adjustment structure of the first aspect of the present application, the coaxiality adjustment structure also includes a guide member and a second movable member, the guide member is arranged parallel to the transmission member, the second movable member is movably mounted outside the guide member, and the mounting member is connected to the second movable member.

[0013] According to the coaxiality adjustment structure of the first aspect of the embodiment of the present application, the second movable part includes a first part, a second part and a third part which are coaxially arranged, the two ends of the second part are respectively connected to the first part and the third part, and the outer diameter of the first part and the outer diameter of the third part are both smaller than the outer diameter of the second part, the mounting part is sleeved outside the first part, a baffle is disposed outside the third part, a spacer column is disposed between the mounting part and the baffle, and the mounting part is connected to the baffle through the spacer column.

[0014] According to the coaxiality adjustment structure of the first aspect embodiment of the present application, there is a clearance fit between the first part and the mounting member, and there is also a clearance fit between the third part and the baffle. The mounting member and the baffle respectively abut against the two end faces of the second part to limit the second moving member axially.

[0015] According to the coaxiality adjustment structure of the first aspect embodiment of the present application, the second moving member is made of POM material.

[0016] The lamp according to the second aspect embodiment of the present application includes the above coaxiality adjustment structure.

[0017] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present application. Description of the Drawings

[0018] The present application will be further described below in conjunction with the drawings and embodiments;

[0019] Figure 1 It is a schematic structural diagram of the lamp (including the coaxiality adjustment structure) in the embodiment of the present application;

[0020] Figure 2 It is a schematic structural diagram of the connection between the mounting member and the first moving member in the embodiment of the present application;

[0021] Figure 3 It is a schematic structural diagram of the connection between the mounting member and the first moving member and the second moving member in the embodiment of the present application;

[0022] Figure 4 is Figure 3 exploded view of;

[0023] Figure 5 It is a schematic structural diagram of the connection between the mounting member and the second moving member in the embodiment of the present application;

[0024] Figure 6 It is another schematic structural diagram of the lamp in the embodiment of the present application.

[0025] Reference Signs:

[0026] Mounting member 110, transmission member 121, first moving member 122, adjusting member 123, first fastener 124, bolt head 1241, screw rod 1242, nut 1243, limiting gasket 125, driving component 126, spacer sleeve 127, fixing plate 130, guiding member 141, second moving member 142, first part 1421, second part 1422, third part 1423, baffle 143, spacer post 144, second fastener 145; lens 200; lamp body 300. Detailed Embodiments

[0027] This section will describe in detail the specific embodiments of the present application. The preferred embodiments of the present application are shown in the accompanying drawings. The function of the accompanying drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present application. However, it should not be construed as a limitation on the protection scope of the present application.

[0028] In the description of the present application, it should be understood that for the orientation description, such as the upper, lower, front, rear, left, right, etc., the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the present application.

[0029] In the description of the present application, the meaning of "several" is one or more, the meaning of "multiple" is two or more, "greater than", "less than", "exceeding", etc. are understood as not including the present number, and "above", "below", "within", etc. are understood as including the present number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0030] In the description of the present application, unless otherwise clearly defined, words such as "arrangement" and "connection" should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above words in the present application in combination with the specific content of the technical solution.

[0031] Next, the technical solution of the present application will be further described in conjunction with the embodiments and the accompanying drawings.

[0032] In the embodiments of the present application, the positive direction of the Z-axis is defined as up, and the negative direction of the Z-axis is defined as down.

[0033] See Figure 1 and Figure 2 , the first aspect embodiment of the present application provides a coaxiality adjustment structure, which can prevent the movement of the lens assembly of the lamp from jamming.

[0034] The coaxiality adjustment structure includes a mounting member 110, a first moving member 122, a transmission member 121, and an adjustment member 123. The mounting member 110 is used to mount the lens 200; the mounting member 110 is connected to the first moving member 122; the first moving member 122 is movably sleeved outside the transmission member 121, and the transmission member 121 can drive the first moving member 122 to reciprocate along the length direction of the transmission member 121, thereby driving the mounting member 110 to reciprocate along the length direction of the transmission member 121; the adjustment member 123 is arranged between the mounting member 110 and the first moving member 122, so that the first moving member 122 has a radial degree of freedom, and further enables the first moving member 122 to be coaxial with the transmission member 121. That is, when the transmission member 121 swings horizontally, the first moving member 122 can also move radially, so as to automatically offset the radial force caused by excessive coaxiality error, so that the lens assembly of the lamp can move smoothly without jamming. The lens assembly includes a mounting member 110 and a lens 200 mounted on the mounting member 110.

[0035] Optionally, the mounting member 110 is a mounting plate, the first moving member 122 is a slider, and the transmission member 121 is a lead screw. Optionally, a plurality of transmission members 121 are provided, and the plurality of transmission members 121 are arranged at intervals along the circumferential direction of the mounting plate. It can be understood that the specific number of the transmission members 121 can be set according to actual needs. The number of the first moving members 122 is the same as that of the transmission members 121 and they correspond one by one. Exemplarily, referring to Figure 3 , the first moving member 122 is provided with three, and the three first moving members 122 are arranged at intervals along the circumferential direction of the mounting member 110. Of course, the transmission member 121 can also adopt other transmission members 121 such as a screw 1242, and no specific limitation is made here.

[0036] Optionally, in some embodiments, referring to Figure 2 , the coaxiality adjustment structure further includes a first fastener 124. The first fastener 124 passes through the mounting member 110 and the first moving member 122 to connect the mounting member 110 and the first moving member 122, and the adjustment member 123 is arranged between the mounting member 110 and the first fastener 124.

[0037] Exemplarily, the mounting member 110 is sleeved outside the transmission member 121, and the mounting member 110 is located above the first moving member 122. Two first fasteners 124 are symmetrically arranged on the outer periphery of each transmission member 121, and each first fastener 124 passes through the mounting member 110 and the first moving member 122 to connect the mounting member 110 and the first moving member 122.

[0038] Optionally, in some embodiments, the adjusting member 123 is an elastically deformable member, so that the first movable member 122 has a certain limit of radial freedom. When the transmission member 121 swings (for example, when the lens assembly moves to the upper end of the transmission member 121), the first movable member 122 squeezes the elastically deformable member through the first fastener 124 to remain coaxial with the transmission member 121. When the transmission member 121 stops swinging (for example, when the lens assembly moves to the lower end of the transmission member 121), the first movable member 122 also stops swinging and resets, and the elastically deformable member can also be restored, so that the first movable member 122 can still remain coaxial with the transmission member 121.

[0039] Optionally, in some embodiments, the adjusting member 123 is a rubber ring, which is sleeved on the outside of the first fastener 124 , and a spacer 127 is provided between the first fastener 124 and the adjusting member 123 , and the spacer 127 is also sleeved on the outside of the first fastener 124 .

[0040] It is understandable that when the lens assembly moves to the upper end of the transmission member 121, the transmission member 121 will swing in the horizontal direction, and will also drive the first moving member 122 to swing. When the first moving member 122 swings, the spacer 127 will squeeze the rubber ring, and the first moving member 122 can move radially by squeezing the rubber ring, so that it can remain coaxial with the transmission member 121, ensuring that the first moving member 122 can move up and down smoothly on the transmission member 121. The rubber ring can also play a role in shock absorption and preventing noise.

[0041] Optionally, in some embodiments, see Figure 2 The first fastener 124 is a fastening bolt, the bolt head 1241 of the fastening bolt is located at the side of the mounting member 110 away from the first moving member 122, and a limiting spacer 125 is arranged between the bolt head 1241 and the mounting member 110, the limiting spacer 125 is sleeved on the outside of the screw rod 1242 of the fastening bolt, and the outer diameter of the limiting spacer 125 is greater than the outer diameter of the rubber ring. Optionally, the nut 1243 is located at the side of the first moving member 122 away from the mounting member 110, and the nut 1243 is sleeved on the outside of the screw rod 1242, so that the mounting member 110 is fixedly connected to the first moving member 122.

[0042] It can be understood that since the outer diameter of the limiting gasket 125 is larger than the outer diameter of the rubber ring, when the first movable member 122 moves radially (that is, when the spacer sleeve 127 squeezes the rubber ring), the limiting gasket 125 can also axially limit the first movable member 122 to prevent the first movable member 122 from axially displacing relative to the mounting member 110, thereby ensuring the smooth movement of the lens assembly.

[0043] Of course, the bolt head 1241 of the fastening bolt can also be located on the side of the first moving member 122 away from the mounting member 110. At this time, a limit gasket 125 can be provided between the nut 1243 and the mounting plate, and the outer diameter of the limit gasket 125 is greater than the outer diameter of the rubber ring.

[0044] Optionally, referring to Figure 1 , the coaxiality adjustment structure further includes a driving member 126. The driving member 126 is connected to the transmission member 121 to drive the transmission member 121 to rotate, thereby driving the first moving member 122 to reciprocate along the length direction of the transmission member 121. Optionally, the driving member 126 is a rotary motor, and the driving shaft of the rotary motor is connected to the transmission member 121. Optionally, the rotary motor is arranged below the transmission member 121.

[0045] Optionally, referring to Figure 1 , the coaxiality adjustment structure further includes a fixing plate 130. The fixing plate 130 is arranged below the mounting member 110, and the rotary motor is mounted on the fixing plate 130.

[0046] Optionally, in some embodiments, referring to Figure 1 , the coaxiality adjustment structure further includes a guiding member 141 and a second moving member 142. The guiding member 141 is arranged parallel to the transmission member 121, and the second moving member 142 is movably sleeved outside the guiding member 141. The mounting member 110 is connected to the second moving member 142. Optionally, the lower end of the guiding member 141 is fixedly mounted on the fixing plate 130.

[0047] Optionally, the second moving member 142 is a sliding sleeve, and the guiding member 141 is a guiding rod. Optionally, referring to Figure 3 , a plurality of guiding members 141 are provided. The plurality of guiding members 141 are arranged at intervals along the circumferential direction of the mounting plate. Optionally, the guiding members 141 can be arranged staggeredly with the transmission member 121. It can be understood that the specific number of the guiding members 141 can be set according to actual needs. The number of the second moving members 142 is the same as that of the guiding members 141 and they are in one-to-one correspondence. Exemplarily, referring to Figure 3 , three second moving members 142 are provided. The three second moving members 142 are arranged at intervals along the circumferential direction of the mounting member 110, and the first moving member 122 is arranged staggeredly with the second moving members 142.

[0048] Optionally, in some embodiments, referring to Figure 4 and Figure 5, the second moving member 142 includes a first part 1421, a second part 1422, and a third part 1423 that are coaxially arranged. Both ends of the second part 1422 are connected to the first part 1421 and the third part 1423 respectively, and the outer diameters of the first part 1421 and the third part 1423 are both smaller than the outer diameter of the second part 1422. The mounting member 110 is sleeved outside the first part 1421, and a baffle 143 is sleeved outside the third part 1423. A spacer post 144 is provided between the mounting member 110 and the baffle 143, and the mounting member 110 is connected to the baffle 143 through the spacer post 144. Optionally, the first part 1421, the second part 1422, and the third part 1423 are integrally formed.

[0049] Optionally, the mounting member 110 is connected to one end of the spacer post 144 through a second fastener 145, and the baffle 143 is connected to the other end of the spacer post 144 through the second fastener 145. Optionally, the second fastener 145 is a screw. Of course, the second fastener 145 can also be other fasteners such as pins and bolts, and specific limitations are not made here.

[0050] Optionally, there is a clearance fit between the first part 1421 and the mounting member 110, and there is also a clearance fit between the third part 1423 and the baffle 143. The mounting member 110 and the baffle 143 respectively abut against two end faces of the second part 1422 to limit the second moving member 142 axially.

[0051] It can be understood that there is a clearance fit between the first part 1421 and the mounting member 110, and there is also a clearance fit between the third part 1423 and the baffle 143, so that the second moving member 142 can move radially by a certain distance, that is, the second moving member 142 has a certain degree of radial freedom; the mounting member 110 and the baffle 143 respectively abut against two end faces of the second part 1422, which can limit the second moving member 142 axially to prevent the second moving member 142 from axially displacing relative to the mounting member 110, thereby ensuring the smooth movement of the lens assembly. When the radial freedom provided by the above-mentioned adjusting member 123 cannot meet the swing error of the transmission member 121, the radial freedom of the second moving member 142 can play a compensating role, enabling the lens assembly to move smoothly.

[0052] Optionally, in some embodiments, the second moving member 142 is made of a high-strength POM material (polyoxymethylene resin material). Since the high-strength engineering plastic POM material itself has a self-lubricating effect, it can reduce the use of lubricating grease, greatly reduce the oil mist caused by the volatilization of grease in the sealed lamp body, improve the quality of the lamp, and extend the service life of the lamp.

[0053] Other components and operations of the coaxiality adjustment structure according to the embodiments of the first aspect of the present application are known to those of ordinary skill in the art and will not be described in detail here.

[0054] See Figure 1 or Figure 6 , an embodiment of the second aspect of the present application provides a lighting fixture, which includes the coaxiality adjustment structure of the first aspect embodiment of the present application. Optionally, the lighting fixture further includes a lens 200 and a lighting fixture body 300. The lens 200 is installed on the mounting member 110, and the fixing plate 130 of the coaxiality adjustment structure is installed on the lighting fixture body 300.

[0055] Optionally, in some embodiments, the lighting fixture is a waterproof and color-changing LED moving head light.

[0056] Other configurations and operations of the lighting fixture according to the embodiment of the second aspect of the present application are known to those of ordinary skill in the art and will not be described in detail herein.

[0057] The embodiments of the present application have been described in detail above with reference to the accompanying drawings. However, the present application is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the spirit of the present application.

Claims

1. The coaxiality adjustment structure is characterized by: include: A mounting piece, the mounting piece is used to mount the lens; a first moving member, the mounting member being connected to the first moving member; A transmission member, wherein the first moving member is movably sleeved outside the transmission member, and the transmission member can drive the first moving member to reciprocate along the length direction of the transmission member, thereby driving the mounting member to reciprocate along the length direction of the transmission member; An adjusting member is arranged between the mounting member and the first movable member, so that the first movable member has radial freedom, thereby enabling the first movable member to remain coaxial with the transmission member.

2. The coaxiality adjustment structure according to claim 1, characterized in that: The coaxiality adjustment structure also includes a first fastener, which is inserted through the mounting member and the first movable member to connect the mounting member with the first movable member, and the adjustment member is arranged between the mounting member and the first fastener.

3. The coaxiality adjustment structure according to claim 2 is characterized in that: The adjusting member is an elastically deformable member. When the transmission member swings, the first moving member presses the elastically deformable member to maintain coaxiality with the transmission member.

4. The coaxiality adjustment structure according to claim 3 is characterized in that: The adjusting member is a rubber ring, which is sleeved on the outside of the first fastener, and a spacer is provided between the first fastener and the adjusting member, and the spacer is also sleeved on the outside of the first fastener.

5. The coaxiality adjustment structure according to claim 4, characterized in that: The first fastener is a fastening bolt, the bolt head of the fastening bolt is located on the side of the mounting member away from the first movable member, and a limiting gasket is arranged between the bolt head and the mounting member, the limiting gasket is sleeved on the outside of the screw rod of the fastening bolt, and the outer diameter of the limiting gasket is greater than the outer diameter of the rubber ring.

6. The coaxiality adjustment structure according to claim 1, characterized in that: The coaxiality adjustment structure further includes a guide member and a second movable member, wherein the guide member is arranged parallel to the transmission member, the second movable member is movably sleeved outside the guide member, and the mounting member is connected to the second movable member.

7. The coaxiality adjustment structure according to claim 6, characterized in that: The second movable member includes a first portion, a second portion and a third portion which are coaxially arranged, the two ends of the second portion are respectively connected to the first portion and the third portion, and the outer diameters of the first portion and the third portion are both smaller than the outer diameter of the second portion, the mounting member is sleeved outside the first portion, a baffle is disposed outside the third portion, a spacer column is disposed between the mounting member and the baffle, and the mounting member is connected to the baffle via the spacer column.

8. The coaxiality adjustment structure according to claim 7, characterized in that: There is a clearance fit between the first part and the mounting member, and there is a clearance fit between the third part and the baffle plate. The mounting member and the baffle plate respectively abut against two end surfaces of the second part to limit the second movable member in the axial direction.

9. The coaxiality adjustment structure according to claim 6, characterized in that: The second moving part is made of POM material.

10. A lamp, characterized in that: The invention comprises a coaxiality adjustment structure as claimed in any one of claims 1 to 9.

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