Corner fixing mechanism and lamp

Abstract

The utility model discloses a corner fixing mechanism and a lamp. An annular groove surrounding a first axis is limited by a base assembly of the lamp, one end of a supporting rod is hinged to the base assembly, and the supporting rod is provided with a first through hole used for allowing a connecting rod to penetrate through. The first fixing part abuts against the base assembly, and the second fixing part abuts against the supporting rod. The connecting rod penetrates through the annular groove and the first through hole, one end of the connecting rod is connected with the first fixing part, and the other end of the connecting rod is connected with the second fixing part. The second fixing part can be close to or away from the first fixing part in the direction parallel to the second axis of the connecting rod so as to control rotation of the base assembly. When the second fixing part is close to the first fixing part, the base assembly is pressed and fixed to the supporting rod. And when the second fixing part is far away from the first fixing part, the base assembly can rotate freely. And by arranging the fixing assembly and the annular groove, the fixing capacity of the corner fixing mechanism to the rotating angle is greatly improved, and the base assembly can be stably fixed to the supporting rod at any suitable angle.

Description

Technical Field

[0001] The utility model relates to the technical field of lighting appliances, in particular to a corner fixing mechanism and a lamp. Background Art

[0002] Lamps are widely used in life. In different usage scenarios, the illumination angle of the lamp is often changed. At this time, the illumination angle of the lamp needs to be adjusted and fixed. In the prior art, especially in heavy lamps, the lamp body is heavy, and the lamp holder needs to provide a large force to fix the lamp body. The lamp holder of the prior art has poor fixing ability on the lamp body, and the lamp is easy to deviate from the actual required illumination angle. Utility Model Content

[0003] The main purpose of the utility model is to provide a corner fixing mechanism and a lamp, which can improve the fixing ability of the corner fixing mechanism on the rotation angle.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a corner fixing mechanism, which includes a base assembly, a support assembly and a fixing assembly. The base assembly limits an annular groove arranged around a first axis. The support assembly includes a support rod, one end of which is hinged to the base assembly so that the base assembly can rotate relative to the support assembly around the first axis, and the support rod has a first through hole. The fixing assembly includes a first fixing portion, a connecting rod and a second fixing portion, the first fixing portion abuts against the base assembly, the second fixing portion is arranged on a side of the support rod away from the base assembly and abuts against the support rod, the connecting rod is passed through the annular groove and the first through hole, one end of the connecting rod is connected to the first fixing portion, and the other end is connected to the second fixing portion, and the second fixing portion can approach or move away from the first fixing portion in a direction parallel to the second axis of the connecting rod to control the rotation of the base assembly relative to the rotating assembly.

[0005] In some embodiments, the connecting rod has an outer peripheral wall, and the outer peripheral wall is used to abut against the wall surface of the first through hole. The supporting rod can limit the rotation of the connecting rod around the second axis.

[0006] In some embodiments, the second fixing portion is connected to the connecting rod by threads.

[0007] In some embodiments, the connecting rod is provided with an external thread, and the second fixing portion includes a sleeve body, and the sleeve body is provided with an internal thread capable of cooperating with the external thread, and the internal thread is used to engage with the external thread.

[0008] In some embodiments, the second fixing portion further includes a rotating member, one end of which is connected to the sleeve body, and the other end of which extends away from the second axis.

[0009] In some embodiments, a first clamping portion is provided on the outside of the sleeve, and a second clamping portion is provided on the rotating member. The rotating member can switch between a first position and a second position along a direction parallel to the second axis. In the first position, the first clamping portion is engaged with the second clamping portion so that the rotating member can drive the sleeve to rotate. In the second position, the first clamping portion is separated from the second clamping portion.

[0010] In some embodiments, the rotating member is provided with a first accommodating cavity, a second accommodating cavity and a second through hole, the second through hole connects the first accommodating cavity and the second accommodating cavity, the sleeve is provided in the first accommodating cavity, the connecting rod is passed through the second through hole to the second accommodating cavity, the second fixing part also includes an elastic member and a limiting member, the limiting member is provided in the second accommodating cavity and connected to the connecting rod, the elastic member is arranged around the connecting rod, and along a direction parallel to the second axis, one end of the elastic member abuts against the rotating member and the other end abuts against the limiting member.

[0011] In some embodiments, the base assembly includes a base, a plate body and connecting screws, the base body is provided with a fourth through hole, the plate body is provided with a fifth through hole, the support rod is provided with a sixth through hole, the base body is passed through the fifth through hole and clamped to the plate body, and the connecting screws are passed through the fourth through hole and the sixth through hole.

[0012] In some embodiments, the fixing assembly further includes a first gasket, one side of the first gasket abuts against the base assembly and the other side abuts against the support rod along a direction parallel to the second axis. The first gasket limits a third through hole, and the connecting rod is passed through the third through hole.

[0013] A second aspect of the present application further provides a lamp, which includes a lamp body and a corner fixing mechanism of any of the above embodiments, wherein a base assembly is connected to the lamp body.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] In the technical solution of the present application, the second fixed portion can approach or move away from the first fixed portion in a direction parallel to the second axis of the connecting rod to control the rotation of the base assembly relative to the rotating assembly. The first fixed portion abuts against the base assembly, the connecting rod is inserted into the base assembly and the connecting rod, and the second fixed portion abuts against the support rod. When the second fixed portion approaches the first fixed portion in a direction parallel to the second axis, the distance between the support rod and the base assembly is reduced, and the second fixed portion can press and fix the support rod to the base assembly, thereby limiting the relative rotation of the base assembly. When the second fixed portion moves away from the first fixed portion in a direction parallel to the second axis, the distance between the support rod and the base assembly increases, and the base assembly can rotate freely. The setting of the fixed assembly and the annular groove of the present application greatly improves the fixing ability of the angle fixing mechanism to the rotation angle, so that the base assembly can be stably fixed to the support assembly at any suitable angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the exploded structure of the corner fixing mechanism in one embodiment of the utility model;

[0018] Figure 2 It is a schematic cross-sectional view of an exploded structure of a corner fixing mechanism in one embodiment of the utility model;

[0019] Figure 3 This is a schematic diagram of the assembly of the corner fixing mechanism in one embodiment of the utility model;

[0020] Figure 4 It is a schematic cross-sectional structure diagram of a corner fixing mechanism at a first angle in one embodiment of the utility model;

[0021] Figure 5 It is a schematic cross-sectional structure diagram of a corner fixing mechanism at a second angle in one embodiment of the utility model;

[0022] Figure 6 for Figure 5 A local enlarged schematic diagram of point I;

[0023] Figure 7 This is a structural schematic diagram of a fixing assembly in one embodiment of the utility model;

[0024] Figure 8 This is a structural schematic diagram of a sleeve body in one embodiment of the utility model;

[0025] Fig. 9 This is a schematic cross-sectional structural diagram of a sleeve body in one embodiment of the utility model;

[0026] Fig.10 It is a cross-sectional structural schematic diagram of a rotating member in one embodiment of the utility model;

[0027] Fig.11 This is a schematic diagram of the partial structure of a support rod in one embodiment of the utility model;

[0028] Fig.12 It is a schematic structural diagram of a plate body in one embodiment of the utility model.

[0029] Description of Figure Numbers:

[0030] Lighting 10;

[0031] Corner fixing mechanism 100;

[0032] Base assembly 110; first axis 111; annular groove 112; base 113; fourth through hole 1131; plate 114; fifth through hole 1141; connecting screw 115;

[0033] Support assembly 120; support rod 121; first through hole 122; sixth through hole 123;

[0034] The fixing assembly 130 includes a first fixing portion 131 , a connecting rod 132 , an outer peripheral wall 1321 , an outer thread 1322 , a second axis 1323 , a second fixing portion 133 , a sleeve 1331 , an inner thread 13311 , a first clamping portion 13312 , a rotating member 1332 , a second clamping portion 13321 , a first accommodating cavity 13322 , a second accommodating cavity 13323 , a second through hole 13324 , an elastic member 1333 , a limiting member 1334 , and a first gasket 134 .

[0035] Lamp body 200.

[0036] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiment is only a sub-embodiment of the utility model, not the embodiment of the whole. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] Lamps are widely used in life. In different usage scenarios, the illumination angle of the lamp is often changed. At this time, the illumination angle of the lamp needs to be adjusted and fixed. Especially in heavy lamps, the lamp body is heavy, and the lamp holder needs to provide a large force to fix the lamp body. In the prior art, the lamp holder has poor fixing ability on the lamp body, and the lamp is easy to deviate from the actual required illumination angle.

[0039] To solve the above technical problems, Figures 1 to 12 As shown, the present application provides a corner fixing mechanism 100 , which includes a base assembly 110 , a support assembly 120 and a fixing assembly 130 .

[0040] like Figure 1 as well as Fig.12As shown, the base assembly 110 limits an annular groove 112 arranged around the first axis 111. The base assembly 110 may be provided with an a-plate 114, and the a-plate 114 limits the annular groove 112, and the annular groove 112 may pass through the through hole of the a-plate 114, or may be a blind hole on the a-plate 114. The angle of the annular groove 112 around the first axis 111 may be different according to different usage requirements, and the central angle corresponding to the annular groove 112 may be any suitable angle such as 360°, 270°, 180°, 90° or 60°.

[0041] The support assembly 120 includes a support rod 121, one end of which is hinged to the base assembly 110 so that the base assembly 110 can rotate relative to the support assembly 120 around the first axis 111, and the support rod 121 has a first through hole 122. The support rod 121 can be hinged to the base assembly 110 in any suitable form, and the hinged position can also be different according to different usage requirements.

[0042] like Figure 2 as well as Figure 3 As shown, the fixing assembly 130 includes a first fixing portion 131, a connecting rod 132 and a second fixing portion 133. The first fixing portion 131 abuts against the base assembly 110. The second fixing portion 133 is arranged on the side of the support rod 121 away from the base assembly 110 and abuts against the support rod 121. The connecting rod 132 is inserted into the annular groove 112 and the first through hole 122. One end of the connecting rod 132 is connected to the first fixing portion 131, and the other end is connected to the second fixing portion 133. The second fixing portion 133 can approach or move away from the first fixing portion 131 along a direction parallel to a second axis 1323 of the connecting rod 132 to control the rotation of the base assembly 110 relative to the support assembly 120. The second axis 1323 can be parallel to the first axis 111.

[0043] like Figure 4 , Figure 5 as well as Figure 6As shown, the first fixing portion 131 abuts against one end of the base assembly 110 away from the support rod 121. Specifically, the annular groove 112 can be configured as a through groove, and the first fixing portion 131 is provided on the side of the base assembly 110 away from the support rod 121 and abuts against the base assembly 110. The annular groove 112 can also be configured as a T-shaped groove, and the first fixing portion 131 and the connecting rod 132 form a T-shaped block, so that the first fixing portion 131 can be clamped in the annular groove 112 and slide along the annular groove 112. It should be noted that the annular groove 112 refers to a groove body arranged around the first axis 111. Specifically, the cross-sectional shape of the annular groove 112 parallel to the first axis 111 can be different, and the corresponding clamping method of the first fixing portion 131 and the base assembly 110 can also be different. The first fixing portion 131 may also be configured to be able to approach or move away from the second fixing portion 133 along a direction parallel to the second axis 1323 of the connecting rod 132. Specifically, the connecting rod 132 may be configured as a threaded rod, and both the first fixing portion 131 and the second fixing portion 133 may be connected to the connecting rod 132 by threads. The first fixing portion 131 may also be integrally formed with the connecting rod 132 as a screw, that is, the end of the screw abuts against the base assembly 110, and the screw passes through the first through hole 122 and the second through hole 13324 and is connected to the second fixing portion 133. In order to meet different movement strokes of the second fixing portion 133, the thread length on the connecting rod 132 may be different. In order to limit the movement stroke of the second fixing portion 133 in a direction parallel to the second axis 1323, a limiting step or the like may also be provided on the connecting rod 132.

[0044] In the technical solution of the present application, the base assembly 110 limits an annular groove 112 arranged around the first axis 111, and the annular groove 112 limits the rotation trajectory of the base assembly relative to the support rod 121. One end of the support rod 121 is hinged to the base assembly 110 so that the base assembly 110 can rotate around the first axis 111. The support rod 121 has a first through hole 122, and the first through hole 122 is used to pass a connecting rod 132. The first fixing portion 131 abuts against the base assembly 110, and the second fixing portion 133 is arranged on the side of the support rod 121 away from the base assembly 110 and abuts against the support rod 121. The connecting rod 132 is passed through the annular groove 112 and the first through hole 122, and one end of the connecting rod 132 is connected to the first fixing portion 131, and the other end is connected to the second fixing portion 133. The second fixing portion 133 can approach or move away from the first fixing portion 131 along a direction parallel to the second axis 1323 of the connecting rod 132 to control the rotation of the base assembly 110. The first fixing portion 131 abuts against the base assembly 110, the connecting rod 132 penetrates the base assembly 110 and the connecting rod 132, and the second fixing portion 133 abuts against the support rod 121. When the second fixing portion 133 approaches the first fixing portion 131 along a direction parallel to the second axis 1323, the distance between the support rod 121 and the base assembly 110 is reduced, and the second fixing portion 133 can press and fix the base assembly 110 to the support rod 121, thereby limiting the rotation of the base assembly 110. When the second fixing portion 133 moves away from the first fixing portion 131 along a direction parallel to the second axis 1323, the distance between the support rod 121 and the base assembly 110 is increased, and the base assembly 110 can rotate freely. The arrangement of the fixing assembly 130 and the annular groove 112 of the present application greatly improves the fixing ability of the corner fixing mechanism 100 to the rotation angle, and the base assembly 110 can be stably fixed to the support rod 121 at any suitable angle.

[0045] The connecting rod 132 is inserted through the first through hole 122 and the annular groove 112 of the support rod 121. The connection stability between the connecting rod 132 and the base assembly 110 and the support rod 121 will affect the convenience of the second fixing portion 133 in pressing the base assembly 110 and the support rod 121 and the stability after pressing. In order to improve the stability of the second fixing portion 133 pressing and fixing the base assembly 110, the support rod 121 and the base assembly 110 can limit the rotation of the connecting rod 132 so that the connecting rod 132 is stationary relative to the support rod 121 when sliding along the annular groove 112. Specifically, the portion where the connecting rod 132 is engaged with the first through hole 122 and the annular groove 112 can be configured as a polygonal cylinder to limit the rotation of the connecting rod 132. Figure 7 as well as Fig.11As shown, in this embodiment, the connecting rod 132 has an outer peripheral wall 1321, and the outer peripheral wall 1321 is used to abut against the wall surface of the first through hole 122, and the support rod 121 can limit the rotation of the connecting rod 132 around the second axis 1323. The rod body of the connecting rod 132 passing through the first through hole 122 can be configured as a semicircular cylinder, a triangular prism, a quadrangular prism or any other suitable cylinder, and the cross-section of the corresponding first through hole 122 can be semicircular, triangular or quadrilateral, etc., as long as the outer peripheral wall 1321 of the connecting rod 132 can abut against the wall surface of the first through hole 122 to limit the rotation of the connecting rod 132.

[0046] The second fixing portion 133 can approach or move away from the first fixing portion 131 in different ways. Specifically, the second fixing portion 133 can be slidably connected to the connecting rod 132. The second fixing portion 133 is locked when it slides to a position where the base assembly 110 and the support rod 121 can be stably fixed to each other. The second fixing portion 133 can also be connected to the connecting rod 132 by a thread. The second fixing portion 133 is meshed with the connecting rod 132 through the thread. The degree of compression of the second fixing portion 133 on the support rod 121 is controlled by controlling the second fixing portion 133 to be screwed in and out. Figure 7 As shown, in this embodiment, the second fixing portion 133 is connected to the connecting rod 132 by threads. Specifically, the connecting rod 132 may be provided with an external thread 1322 and the second fixing portion 133 may be provided with an internal thread 13311, or the connecting rod 132 may be provided with an internal thread 13311 and the second fixing portion 133 may be provided with an external thread 1322. Figure 7 As shown, in this embodiment, the connecting rod 132 is provided with an external thread 1322, and the second fixing portion 133 includes a sleeve 1331, and the sleeve 1331 is provided with an internal thread 13311 that can cooperate with the external thread 1322, and the internal thread 13311 is used to engage with the external thread 1322. In other words, the sleeve 1331 can rotate around the second axis 1323 by engaging with the connecting rod 132 to fix and release the support rod 121. It should be noted that the sleeve 1331 can directly abut against the support rod 121, and the second fixing portion 133 can also be provided with a gasket, one side of the gasket abuts against the support rod 121 and the other side abuts against the sleeve 1331. The provision of the gasket can reduce the wear of the sleeve 1331 and improve the rotation stability of the sleeve 1331.

[0047] The sleeve 1331 is meshed with the connecting rod 132. In the process of rotating the sleeve 1331, in order to rotate the sleeve 1331 more effortlessly, the second fixing portion 133 may be provided with a rotating handle. Figure 5 as well as Figure 7As shown, in this embodiment, the second fixing portion 133 further includes a rotating member 1332, one end of the rotating member 1332 is connected to the sleeve 1331, and the other end extends to the side away from the second axis 1323. The rotating member 1332 is a rotating handle, with one end of the rotating member 1332 connected to the sleeve 1331 as the end point, and the sleeve 1331 can be easily twisted by applying external force to the end of the rotating member 1332 away from the sleeve 1331. The provision of the rotating member 1332 greatly improves the convenience of rotating the sleeve 1331.

[0048] The rotating member 1332 improves the convenience of rotating the sleeve 1331 through the lever principle. In order to avoid accidentally touching the rotating member 1332 after the sleeve 1331 presses the support rod 121, causing the sleeve 1331 to loosen, a first clamping portion 13312 is provided on the outer side of the sleeve 1331, and the rotating member 1332 is provided with a second clamping portion 13321. The rotating member 1332 can switch between a first position and a second position along a direction parallel to the second axis 1323. In the first position, the first clamping portion 13312 is engaged with the second clamping portion 13321, so that the rotating member 1332 can drive the sleeve 1331 to rotate. In the second position, the first clamping portion 13312 is separated from the second clamping portion 13321. According to different usage requirements, the first clamping portion 13312 and the second clamping portion 13321 can be configured as a thread, a gear rear buckle, etc. It should be noted that the rotation member 1332 switches between the first position and the second position along the direction parallel to the second axis 1323, which means that the final displacement of the rotation member 1332 is a displacement parallel to the second axis 1323, and the rotation member 1332 can be rotated or translated during the switching process. As shown in FIG**, in this embodiment, the first clamping portion 13312 and the second clamping portion 13321 are configured as spur gears that can mesh with each other. Specifically, the first clamping portion 13312 outside the sleeve 1331 is an external gear, and the rotation member 1332 is provided with an internal gear that matches the external gear. The rotation member 1332 can translate along the direction parallel to the second axis 1323. When the first clamping portion 13312 is meshed with the second clamping portion 13321, the rotation member 1332 can drive the sleeve 1331 to rotate. When the first clamping portion 13312 is separated from the second clamping portion 13321, the sleeve 1331 will not rotate when the rotation member 1332 is accidentally touched.

[0049] In order to further improve the convenience of switching the rotating member 1332 between the first position and the second position, the second fixing portion 133 may also be provided with a spring or the like so that the rotating member 1332 can be kept in the second position under normal conditions. When it is needed, the rotating member 1332 is pushed in a direction parallel to the second axis 1323 to make the first clamping portion 13312 mesh with the second clamping portion 13321. Figure 7 , Figure 8 , Fig. 9 as well as Fig.10As shown, in this embodiment, the rotating member 1332 is provided with a first accommodating cavity 13322, a second accommodating cavity 13323 and a second through hole 13324, the second through hole 13324 communicates the first accommodating cavity 13322 and the second accommodating cavity 13323, the sleeve 1331 is provided in the first accommodating cavity 13322, the connecting rod 132 is passed through the second through hole 13324 to the second accommodating cavity 13323, the second fixing portion 133 further includes an elastic member 1333 and a stopper 1334, the stopper 1334 is provided in the second accommodating cavity 13323 and connected to the connecting rod 132, the elastic member 1333 is arranged around the connecting rod 132, and along the direction parallel to the second axis 1323, one end of the elastic member 1333 abuts against the rotating member 1332, and the other end abuts against the stopper 1334. The stopper 1334 can be configured as a screw. Specifically, along the direction parallel to the second axis 1323, the first clamping portion 13312 can be provided at one end of the sleeve 1331 close to the first fixing portion 131, or at one end of the sleeve 1331 away from the first fixing portion 131. In some embodiments, the first clamping portion 13312 is provided at one end of the sleeve 1331 close to the first fixing portion 131, and the rotating member 1332 is provided at a side of the first clamping portion 13312 away from the first fixing portion 131 under normal conditions, and the first clamping portion 13312 is separated from the second clamping portion 13321. When an external force is applied to enable the rotating member 1332 to approach the first fixing portion 131, the first clamping portion 13312 is engaged with the second clamping portion 13321. In the first position, the elastic member 1333 is stretched, and when the external force is removed, the pulling force of the elastic member 1333 can switch the rotating member 1332 to the second position. In some embodiments, the first clamping portion 13312 can be arranged at one end of the sleeve 1331 away from the first fixing portion 131, and the second clamping portion 13321 is arranged at a side of the first clamping portion 13312 close to the first fixing portion 131 under normal conditions, and the first clamping portion 13312 is separated from the second clamping portion 13321, and an external force is applied to make the rotating member 1332 move to the side away from the first fixing portion 131 to the first position, so that the first clamping portion 13312 and the second clamping portion 13321 are engaged, and the elastic member 1333 is stretched in the first position. When the external force is removed, the tension of the elastic member 1333 can switch the rotating member 1332 to the second position. The elastic member 1333 can be an elastic member such as a spring, a shrapnel, or rubber. The arrangement of the elastic member 1333 and the limiting member 1334 also ensures that the rotating portion will not be separated from the connecting rod 132 when switching between the first position and the second position. The arrangement of the elastic member 1333 and the limiting member 1334 can also provide a good buffering effect on the position switching of the rotating member 1332 , thereby reducing abnormal noise when the rotating member 1332 is in use.

[0050] In some embodiments, the support assembly 120 can be hinged to the base assembly 110 in any suitable manner. In this embodiment, the base assembly 110 includes a base 113, a plate 114 and a connecting screw 115. The base 113 is provided with a fourth through hole 1131, the plate 114 is provided with a fifth through hole 1141, the support rod 121 is provided with a sixth through hole 123, the base 113 is passed through the fifth through hole 1141 and is clamped to the plate 114, and the connecting screw 115 is passed through the fourth through hole 1131 and the sixth through hole 123. In other words, the support rod 121 can rotate relative to the base assembly 110 around the axis of the screw. It should be noted that the support rod 121 can have multiple ends, and each end can be hinged to the base assembly 110 respectively. Figure 1 As shown, the support rod 121 includes a first rod body, a second rod body and a third rod body, the first rod body and the second rod body are arranged relatively parallel, one end of the third rod body is connected to the first rod body, and the other end is connected to the second rod body, the first rod body and the second rod body are respectively hinged to the base assembly 110, and limiting the rotation of the first rod body can limit the rotation of the support rod 121 as a whole. In some embodiments, multiple fixing assemblies 130 can also be provided to simultaneously limit the rotation of the second rod body, which will not be repeated here. The third rod body can also be connected to other components to form a bracket assembly of the corner fixing mechanism 100, which is not limited here.

[0051] In some embodiments, in order to provide good damping for the rotation of the base assembly 110 relative to the support rod 121, a gasket may be provided between the support rod 121 and the base assembly 110. Figure 6 As shown, in this embodiment, the fixing assembly 130 further includes a first gasket 134. Along a direction parallel to the second axis 1323, one side of the first gasket 134 abuts against the base assembly 110, and the other side abuts against the support rod 121. The first gasket 134 limits a third through hole, and the connecting rod 132 is passed through the third through hole. The provision of the first gasket 134 prevents the support rod 121 from directly contacting the base assembly 110, so that the fixing of the support rod 121 is more stable, and the rotation has a stronger damping feeling.

[0052] like Figure 1 As shown, the second aspect of the present application further provides a lamp 10, which further includes a lamp body 200 and a corner fixing mechanism 100 of any of the above embodiments, and a base assembly 110 is connected to the lamp body 200. Thanks to the improvement of the above corner fixing mechanism 100, the corner fixing mechanism 100 of this embodiment has the same technical effect as the above corner fixing mechanism 100, which will not be described in detail here.

[0053] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various parts in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0054] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or", "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0055] The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A corner fixing mechanism, characterized in that: include: A base assembly defining an annular groove disposed around the first axis; A support assembly, comprising a support rod, one end of which is hinged to the base assembly so that the base assembly can rotate relative to the support assembly around the first axis, and the support rod has a first through hole; The fixing assembly includes a first fixing portion, a connecting rod and a second fixing portion, the first fixing portion abuts against the base assembly, the second fixing portion is arranged on the side of the support rod away from the base assembly and abuts against the support rod, the connecting rod passes through the annular groove and the first through hole, one end of the connecting rod is connected to the first fixing portion, and the other end is connected to the second fixing portion, and the second fixing portion can approach or move away from the first fixing portion along a direction parallel to the second axis of the connecting rod to control the rotation of the base assembly relative to the support assembly.

2. The corner fixing mechanism according to claim 1, characterized in that: The connecting rod has an outer peripheral wall, and the outer peripheral wall is used to abut against the wall surface of the first through hole. The supporting rod can limit the rotation of the connecting rod around the second axis.

3. The corner fixing mechanism according to claim 1, characterized in that: The second fixing portion is connected to the connecting rod via threads.

4. The corner fixing mechanism according to claim 3, characterized in that: The connecting rod is provided with an external thread, and the second fixing portion includes a sleeve body, the sleeve body is provided with an internal thread capable of matching with the external thread, and the internal thread is used to mesh with the external thread.

5. The corner fixing mechanism according to claim 4, characterized in that: The second fixing portion further includes a rotating member, one end of which is connected to the sleeve body, and the other end of which extends to a side away from the second axis.

6. The corner fixing mechanism according to claim 5, characterized in that: A first clamping portion is provided on the outside of the sleeve, and a second clamping portion is provided on the rotating member. The rotating member can switch between a first position and a second position along a direction parallel to the second axis. In the first position, the first clamping portion is engaged with the second clamping portion so that the rotating member can drive the sleeve to rotate. In the second position, the first clamping portion is separated from the second clamping portion.

7. The corner fixing mechanism according to claim 6, characterized in that: The rotating member is provided with a first accommodating cavity, a second accommodating cavity and a second through hole, the second through hole connects the first accommodating cavity and the second accommodating cavity, the sleeve is provided in the first accommodating cavity, the connecting rod is passed through the second through hole to the second accommodating cavity, the second fixing part also includes an elastic member and a limiting member, the limiting member is provided in the second accommodating cavity and connected to the connecting rod, the elastic member is arranged around the connecting rod, and along a direction parallel to the second axis, one end of the elastic member abuts against the rotating member, and the other end abuts against the limiting member.

8. The corner fixing mechanism according to claim 1, characterized in that: The base assembly includes a base, a plate body and connecting screws, the base body is provided with a fourth through hole, the plate body is provided with a fifth through hole, the support rod is provided with a sixth through hole, the base body is passed through the fifth through hole and clamped to the plate body, and the connecting screws are passed through the fourth through hole and the sixth through hole.

9. The corner fixing mechanism according to claim 1, characterized in that: The fixing assembly also includes a first gasket, which abuts against the base assembly on one side and the support rod on the other side in a direction parallel to the second axis. The first gasket limits a third through hole, and the connecting rod is passed through the third through hole.

10. A lamp, characterized in that: include: Lamp body; The corner fixing mechanism described in any one of claims 1 to 9, wherein the base assembly is connected to the lamp body.

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