Adjusting mechanism and fixing support

Abstract

The utility model relates to the technical field of photographic equipment, and provides an adjusting mechanism and a fixing support. The utility model provides an adjusting mechanism. The adjusting mechanism comprises a first connecting part, a gear structure, a second connecting part and a rotation stopping assembly. The gear structure comprises a fluted disc and a plurality of first teeth, the first teeth are distributed in the circumferential direction of the fluted disc, and the gear structure and the first connecting part are relatively fixed; the second connecting part is rotationally connected with the first connecting part; the rotation stopping assembly is installed on the second connecting part and comprises a retainer, and in the joint state, the retainer is jointed with the first teeth on the gear structure so as to stop rotation of the second connecting part relative to the first connecting part; and in the separation state, the retainer is separated from the first teeth on the gear structure, so that the second connecting part can rotate relative to the first connecting part. According to the application, the condition of inclination or shaking in the use process can be avoided, so that the shooting efficiency can be ensured.

Description

Technical Field

[0001] The present application relates to the technical field of photographic equipment, and more specifically, to an adjustment mechanism and a fixing bracket. Background Art

[0002] In the vast fields of film and television production, advertising shooting and creative video creation, lighting plays a vital role. It can not only shape the sense of space and create atmosphere, but also profoundly affect the audience's emotional resonance and visual experience. However, faced with diverse shooting scenes and complex and changing lighting requirements, the flexibility of lamps and the stability of brackets have become challenges that cannot be ignored. Especially in scenes where the lighting angle needs to be adjusted frequently to capture the best light and shadow effects, the lamps need to be combined with the extension arm of the bracket so that the lamps can meet the lighting requirements. However, the lamps are on the extension arm. Due to the heavy weight of the lamps themselves, the extension arm is prone to tilt, shake, or even fail to be stably supported, which directly affects the shooting efficiency and the final image quality.

[0003] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide an adjustment mechanism and a fixing bracket, aiming to solve the technical problem in the related art that the extension arm is prone to tilting and shaking due to the heavy weight of the lamp itself.

[0005] To achieve the above purpose, the technical solution adopted in this application is:

[0006] The present application provides an adjustment mechanism, which includes: a first connecting part, a gear structure, a second connecting part and a rotation-stopping assembly;

[0007] The gear structure includes a gear plate and a plurality of first teeth, the plurality of first teeth are distributed along the circumference of the gear plate, and the gear structure and the first connecting portion are relatively fixed;

[0008] The second connection part is rotatably connected to the first connection part;

[0009] The anti-rotation assembly is installed on the second connecting part, and the anti-rotation assembly includes a stopper, and the stopper and the gear structure have an engaged state and a disengaged state;

[0010] Wherein, in the engaged state, the stopper engages with the first tooth on the gear structure to stop the rotation of the second connecting part relative to the first connecting part;

[0011] In the disengaged state, the stopper is separated from the first tooth on the gear structure, so that the second connecting part can rotate relative to the first connecting part.

[0012] In some implementations, the stopper is movable in a first direction to engage or disengage with a first tooth on the gear structure;

[0013] The rotation axis of the second connection portion relative to the first connection portion is perpendicular to the first direction.

[0014] In some implementations, the anti-rotation assembly further includes: a button configured to be movable in the second direction to drive the stopper to move in the first direction;

[0015] The second direction is non-parallel to the first direction.

[0016] In some implementations, the stopper has a first guiding slope, the key has a second guiding slope, the angle formed between the first guiding slope and the second direction is an acute angle, and the angle formed between the second guiding slope and the second direction is an acute angle;

[0017] When the second guiding slope moves in the second direction and the second guiding slope contacts the first guiding slope, the second guiding slope can cause the first guiding slope to move in the first direction.

[0018] In some implementations, the anti-rotation assembly includes a first spring, the first spring is used to make the stopper have a tendency to move in the direction where the gear structure is located; one end of the first spring abuts against the stopper, and the other end of the first spring abuts against the second connecting portion;

[0019] The second connecting portion is provided with a guide groove, and the stopper can move along the guide direction of the guide groove, and the guide direction of the guide groove is parallel to the first direction.

[0020] In some implementations, the anti-rotation assembly further includes a second spring, and the second spring can be compressed in a second direction as the key moves.

[0021] In some implementations, the first connection portion is plate-shaped, and the second connection portion is plate-shaped;

[0022] The stopper is in a plate shape and has a first end and a second end opposite to each other. The first end has a second tooth, and the second tooth can mesh with the first tooth.

[0023] The present application also provides a fixing bracket, which includes: a clamping portion, a fixing portion and an adjusting mechanism in any of the above embodiments, wherein the clamping portion is connected to the second connecting portion, and the fixing portion is connected to the first connecting portion.

[0024] In some implementations, the clamping portion is rotatably connected to the second connecting portion, wherein the fixing bracket further includes a first knob, and the first knob is used to lock the rotation between the clamping portion and the second connecting portion.

[0025] In some implementations, the fixing portion is rotatably connected to the first connecting portion, wherein the fixing bracket further includes a second knob, the first connecting portion has a first face gear, the fixing portion has a second face gear that can mesh with the first face gear, and the second knob is used to maintain the first face gear and the second face gear in a meshing state.

[0026] The beneficial effects of the adjustment mechanism and the fixing bracket provided in this application are mainly:

[0027] In the present application, an adjustment mechanism is arranged on the fixed bracket, and the first connecting part and the second connecting part are stopped by engaging or disengaging the stopper with the first circumferential tooth of the gear structure. Different angles can be formed between the first connecting part and the second connecting part to meet the needs of lighting the lamp in different directions. The cooperation between the gear structure and the stopper can ensure the reliability of the stopping effect, thereby avoiding tilting or shaking during use, thereby ensuring shooting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, 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 present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 is a schematic diagram of the structure of the adjustment mechanism provided in the embodiment of the present application;

[0030] Figure 2 is an exploded view of the adjustment mechanism provided in the embodiment of the present application;

[0031] Figure 3 is a partial structural schematic diagram of the adjustment mechanism in an embodiment of the present application (the first connecting portion is not shown);

[0032] Figure 4 is a schematic structural diagram of a gear structure and a rotation-stopping assembly in an engagement state in an embodiment of the present application;

[0033] Figure 5 yes Figure 4 A structural diagram from another perspective;

[0034] Figure 6 is a schematic diagram of the structure of a fixing bracket provided in an embodiment of the present application;

[0035] Figure 7 yes Figure 6 A structural diagram from another perspective;

[0036] Figure 8 yes Figure 6 Exploded view of the fixing bracket;

[0037] Fig. 9 is a schematic structural diagram of a clamping portion in an embodiment of the present application;

[0038] Fig.10 is a schematic diagram of the structure of the clamping portion in an embodiment of the present application (the third cover plate is not shown);

[0039] Fig.11 This is a schematic diagram of the structure of another fixing bracket provided in an embodiment of the present application.

[0040] Description of main reference numerals:

[0041] 101, first connecting part; 102, second connecting part; 103, gear structure; 104, toothed disc; 105, first tooth; 106, first axle; 107, first axial hole; 108, first screw; 109, second axle; 110, second axial hole; 111, bearing; 112, second screw; 113, first spring; 114, guide groove; 115, second tooth; 116, positioning column; 117, mounting groove; 118, first cover plate; 119, through hole; 120, button; 121, first mounting hole; 122, stop boss; 123, second cover plate; 124, first Guide slope; 125, second guide slope; 126, second spring; 127, clamping part; 128, fixing part; 129, bottom plate; 130, clamping plate; 131, guide rail; 132, slide groove; 133, third spring; 134, third cover plate; 135, first knob; 136, first connecting rod; 137, ball joint structure; 138, C-shaped frame; 139, adjusting screw; 140, gasket structure; 141, second knob; 142, first face gear; 143, second face gear; 144, sleeve; 145, second connecting rod; 146, stop screw; 147, stopper. DETAILED DESCRIPTION

[0042] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0043] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0044] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0045] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0046] In order to illustrate the technical solution described in this application, a detailed description is given below in conjunction with specific drawings and embodiments.

[0047] See also Figures 1 to 3 As shown, in one or more embodiments, the present application provides an adjustment mechanism, which includes: a first connecting part 101, a gear structure 103, a second connecting part 102 and a stop assembly; the gear structure 103 includes a gear disc 104 and a plurality of first teeth 105, the plurality of first teeth 105 are distributed along the circumference of the gear disc 104, and the gear structure 103 and the first connecting part 101 are relatively fixed; the second connecting part 102 and the first connecting part 101 are rotationally connected; the stop assembly is installed on the second connecting part 102, and the stop assembly includes a stop member 147, and the stop member 147 and the gear structure 103 have an engaged state and a disengaged state; wherein, in the engaged state, the stop member 147 is engaged with the first tooth 105 on the gear structure 103 to stop the rotation of the second connecting part 102 relative to the first connecting part 101; in the disengaged state, the stop member 147 is separated from the first tooth 105 on the gear structure 103, so that the second connecting part 102 can rotate relative to the first connecting part 101.

[0048] The adjustment mechanism provided by at least one embodiment of the present application utilizes the engagement or separation between the stopper 147 and the first circumferential tooth 105 of the gear structure 103 to achieve the stop between the first connection part 101 and the second connection part 102, so that different angles can be formed between the first connection part 101 and the second connection part 102 to meet the needs of lighting in different directions of the lamp; and because the gear structure 103 cooperates with the stopper 147 to ensure the reliability of the stop effect, thereby avoiding tilting or shaking during use, and thus ensuring shooting efficiency. The adjustment mechanism can realize the function of the fixed frame having a long arm span and a large load while maintaining a stable structure without shaking, and the adjustment mechanism also has the characteristics of simple installation and convenient adjustment.

[0049] See also Figures 1 to 3 As shown, in some embodiments, the stopper 147 and the gear structure 103 have an engagement state and a separation state, which means that there can be two different states between the stopper 147 and the gear structure 103, but the two states will not exist at the same time. In the engagement state, the second connection part 102 cannot rotate relative to the first connection part 101; in the separation state, the second connection part 102 can rotate relative to the first connection part 101. The first connection part 101 is plate-shaped and has a certain length; the second connection part 102 is plate-shaped and has a certain length, so that the first connection part 101 and the second connection part 102 can form a support arm respectively, so that the adjustment mechanism as a whole has a certain length, so as to provide support for structures such as lamps. The toothed disc 104 is roughly circular, and a plurality of first teeth 105 are evenly spaced on the circumference of the toothed disc 104. The first teeth 105 and the toothed disc 104 can be an integral structure, which is convenient for manufacturing. Exemplarily, the cross-section of the first tooth 105 can be an isosceles triangle, which is conducive to achieving bidirectional stopping of the gear structure 103 by the stop member 147, that is, after the stop member 147 engages with the first tooth 105, the first connecting part 101 can neither rotate counterclockwise nor clockwise relative to the second connecting part 102.

[0050] It should be noted that, in some other possible embodiments, the first tooth 105 may also be in the form of an obtuse triangle, so that the gear structure 103 forms a ratchet, and the stop member 147 realizes unidirectional rotation of the first connecting part 101 relative to the second connecting part 102, that is, it can only rotate clockwise or counterclockwise.

[0051] See also Figures 1 to 3As shown, in some embodiments, the gear structure 103 also includes a first axle 106, and the first axle 106 is fixedly connected to the gear plate 104. The first axle 106 is located on one side of the gear plate 104. Exemplarily, the first axle 106 and the gear plate 104 are an integrated structure, which facilitates the first axle 106 to achieve relative fixation between the gear structure 103 and the first connecting portion 101. One end of the first connecting portion 101 has a first axial hole 107, and the first axial hole 107 is a through hole. The first wheel axle 106 is inserted into the first axial hole 107. The radial cross-section of the first wheel axle 106 can be polygonal or elliptical. The hole shape of the first axial hole 107 is similar to the shape of the radial cross-section of the first wheel axle 106, thereby achieving relative fixation between the first wheel axle 106 and the first connecting portion 101. The first connecting portion 101 and the gear structure 103 can rotate relative to the second connecting portion 102. A threaded hole is provided at the end of the first wheel axle 106, and a first screw 108 is threadedly connected to the threaded hole on the first wheel axle 106. The head of the first screw 108 is located on one side of the first connecting portion 101, thereby achieving the fixing of the gear structure 103 on the first connecting portion 101.

[0052] See also Figure 2 , Figure 4 and Figure 5 As shown, in some embodiments, the gear structure 103 also includes a second axle 109, which is fixedly connected to the toothed disc 104, and the second axle 109 is located on a side opposite to the toothed disc 104. Exemplarily, the second axle 109 and the toothed disc 104 are an integrated structure. The radial cross section of the second wheel shaft 109 is circular; one end of the second connecting portion 102 is provided with a second shaft hole 110, which is a through hole and circular in shape. A bearing 111 is installed in the second shaft hole 110, and the outer ring of the bearing 111 is interference-connected with the second shaft hole 110, and the inner ring of the shaft hole is fixedly connected with the second wheel shaft 109. A threaded hole is provided at the end of the second wheel shaft 109, and a second screw 112 is threadedly connected in the threaded hole on the second wheel shaft 109, and the head of the second screw 112 is located on one side of the second connecting portion 102, so that the gear structure 103 is installed on the second connecting portion 102 through the bearing 111, so that the gear structure 103 can rotate relative to the second connecting portion 102, and the gear structure 103 can rotate with the first connecting portion 101. The axis of the second wheel shaft 109 is coaxially arranged with the axis of the first wheel shaft 106.

[0053] See also Figure 2 , Figure 4 and Figure 5As shown, in some embodiments, the first direction is the AA direction; the stopper 147 can move in the first direction to engage or disengage with the first tooth 105 on the gear structure 103; the rotation axis of the second connection part 102 relative to the first connection part 101 is perpendicular to the first direction. By designing the movement of the stopper 147 in this way, the stop or rotation between the second connection part 102 and the first connection part 101 can be more convenient. Exemplarily, the rotation axis of the second connection part 102 relative to the first connection part 101 can be the axis of the second axle 109 of the gear structure 103. The movement of the stopper 147 in the first direction can be a straight line, which facilitates the design of the stopper assembly. The first direction can be parallel to the length direction of the second connection part 102, and the movement trajectory of the stopper 147 can be a straight line.

[0054] See also Figure 2 , Figure 4 and Figure 5 As shown, in some embodiments, the anti-rotation assembly includes a first spring 113, and the first spring 113 is used to make the stopper 147 have a tendency to move in the direction where the gear structure 103 is located; one end of the first spring 113 abuts against the stopper 147, and the other end of the first spring 113 abuts against the second connecting portion 102; a guide groove 114 is provided on the second connecting portion 102, and the stopper 147 can move along the guide direction of the guide groove 114, and the guide direction of the guide groove 114 is parallel to the first direction. In this way, the use of the first spring 113 is conducive to realizing the automatic reset of the movement of the stopper 147 in the first direction, so as to quickly realize the stop between the second connecting portion 102 and the first connecting portion 101.

[0055] See also Figure 2 , Figure 4 and Figure 5 As shown, in some embodiments, the stopper 147 is plate-shaped, and the stopper 147 has a first end and a second end opposite to each other, and the first end has a second tooth 115, and the second tooth 115 can mesh with the first tooth 105. The plate-shaped stopper 147 is used to control the movement direction of the stopper 147. The second tooth 115 meshes with the first tooth 105 to ensure that the stopper 147 can stop the rotation of the gear structure 103. Exemplarily, the number of the second teeth 115 is one or more, for example, when the number of the second teeth 115 is, the number of the second teeth 115 can be two or three; among the plurality of second teeth 115, the shapes of different second teeth 115 can be the same or different.

[0056] See also Figure 2 , Figure 4 and Figure 5As shown, in some embodiments, one end of the first spring 113 abuts against the second end of the stop member 147. For example, a positioning column 116 may be provided on the end surface of the second end of the stop member 147, and the positioning column 116 is inserted into the first spring 113. This can facilitate assembly and prevent the first spring 113 from falling out from between the stop member 147 and the second connecting portion 102.

[0057] In some embodiments, a mounting groove 117 is provided on the side of the second connecting portion 102, and the toothed disc 104 of the gear structure 103 is located in the mounting groove 117, so that the gear structure 103 can be conveniently limited on the second connecting portion 102, and the gear structure 103 can also rotate relative to the second connecting portion 102. The mounting groove 117 is connected to the guide groove 114; the guide groove 114 is also located on the side of the second connecting portion 102. The other end of the first spring 113 abuts against the bottom of the groove at one end of the guide direction of the guide groove 114, so that the first spring 113 can be used to keep the stopper 147 and the gear structure 103 in an engaged state. Exemplarily, the mounting groove 117 and the guide groove 114 are located on the surface surrounded by the width and length of the second connecting portion 102. The second connection part 102 is fixed with a first cover plate 118, which covers the guide groove 114 and the mounting groove 117. The first cover plate 118 is used to have a through hole 119, and the first axle 106 passes through the through hole 119. A gap is set between the through hole 119 and the first axle 106, so that when the gear structure 103 rotates relative to the second connection part 102, the through hole 119 will not affect the rotation of the first axle 106 relative to the second connection part 102. The first cover plate 118 can be fixedly connected to the second connection part 102 by screw bonding.

[0058] See also Figure 2 , Figure 4 and Figure 5As shown, in some embodiments, the second direction is the BB direction, and the anti-rotation assembly further includes a button 120, which is configured to be movable in the second direction to drive the stopper 147 to move in the first direction; the second direction is non-parallel to the first direction. The button 120 is used to drive the movement of the stopper 147 in a convenient and quick manner. Exemplarily, the first direction is perpendicular to the second direction, the second direction is perpendicular to the axis of the second axle 109, and the axis of the second axle 109 is perpendicular to the first direction; the second connecting portion 102 has a first mounting hole 121, the first mounting hole 121 is a through hole, the first mounting hole 121 is connected to the guide groove 114, and the first mounting hole 121 is opened on the surface surrounded by the length and thickness of the second connecting portion 102. The button 120 has a stop boss 122 , and a second cover plate 123 is mounted on the second connection portion 102 . The second cover plate 123 is fixed to the second connection portion 102 by screws. The stop boss 122 can prevent the button 120 from escaping from the first mounting hole 121 .

[0059] See also Figure 2 , Figure 4 and Figure 5 As shown, in some embodiments, the stop member 147 has a first guide bevel 124, and the button 120 has a second guide bevel 125. The angle formed between the first guide bevel 124 and the second direction is an acute angle, and the angle formed between the second guide bevel 125 and the second direction is an acute angle. When the second guide bevel 125 moves in the second direction and the second guide bevel 125 contacts the first guide bevel 124, the second guide bevel 125 can move the first guide bevel 124 in the first direction, which is beneficial to the relative sliding between the first guide bevel 124 and the second guide bevel 125, so as to convert the movement of the button 120 in the second direction into the movement of the stop member 147 in the first direction, so as to achieve separation between the stop member 147 and the gear structure 103 after pressing the button 120, so as to achieve rotation of the second connecting part 102 relative to the first connecting part 101.

[0060] See also Figure 2 , Figure 4 and Figure 5As shown, in some embodiments, the anti-rotation assembly further includes a second spring 126, and the second spring 126 can be compressed in the second direction as the button 120 moves. In this way, after the pressing operation on the button 120 is removed, the button 120 automatically resets under the action of the second spring 126. The first mounting hole 121 can be a stepped through hole, so that one end of the second spring 126 abuts against the step surface of the stepped through hole, and the other end of the second spring 126 abuts against the stop boss 122. The second spring 126 is sleeved on the button 120, so that after pressing the button 120, the second spring 126 can be compressed. When the pressure on the button 120 is removed, the second spring 126 can reset the button 120. After the button 120 is reset, the stopper 147 moves toward the gear structure 103 under the action of the first spring 113 to stop the gear structure 103.

[0061] See also Figure 6 , Figure 7 and Fig.11 As shown, in one or more embodiments, the present application further provides a fixing bracket, which includes: a clamping portion 127, a fixing portion 128 and an adjustment mechanism, wherein the clamping portion 127 is connected to the second connecting portion 102, and the fixing portion 128 is connected to the first connecting portion 101. After the adjustment mechanism is set on the fixing bracket, the first connecting portion 101 and the second connecting portion 102 are stopped by engaging or disengaging the stopper 147 with the first circumferential teeth 105 of the gear structure 103, so that different angles can be formed between the first connecting portion 101 and the second connecting portion 102 to meet the requirements of lighting in different directions of the lamp; and the cooperation between the gear structure 103 and the stopper 147 can ensure the reliability of the stopping effect, thereby avoiding tilting or shaking during use, and thus ensuring shooting efficiency.

[0062] See also Fig. 9 and Fig.10As shown, in some embodiments, the clamping portion 127 can clamp an object to be clamped, and the object to be clamped can be a lamp, a reflective umbrella or a lampshade; the lamp can be a panel lamp, etc. Exemplarily, the clamping portion 127 includes a bottom plate 129 and two clamping plates 130, and the clamping plates 130 are slidably arranged on the bottom plate 129; the clamping plates 130 have a guide rail 131, and the bottom plate 129 has a slide groove 132, and the guide rail 131 is slidably arranged in the slide groove 132; a third spring 133 is also arranged in the slide groove 132; the two clamping plates 130 are arranged opposite to each other on the bottom plate 129, and there is a spacing between the two clamping plates 130 to clamp the lamp. One end of the third spring 133 is fixedly connected to the guide rail 131 of one of the clamping plates 130, and the other end of the third spring 133 is fixedly connected to the guide rail 131 of the other clamping plate 130, so that the third spring 133 is used to clamp lamps of different sizes. There are two third springs 133, the card plate 130 has two guide rails 131 with gaps, the bottom plate 129 has two slots 132 with gaps, and different guide rails 131 are slidably arranged in different slots 132. The clamping portion 127 also includes a third cover plate 134, which is connected to the bottom plate 129 by screws. It is understood that the clamping portion 127 is not limited to the form of the clamping portion 127 in the present application, but can also be in other forms, such as a clip or book clip with the same structure as a mobile phone clip.

[0063] See also Fig. 9 and Fig.10 As shown, in some embodiments, the clamping portion 127 is rotatably connected to the second connecting portion 102, wherein the fixing bracket further includes a first knob 135, and the first knob 135 is used to lock the rotation between the clamping portion 127 and the second connecting portion 102. In this way, the angle between the clamping portion 127 and the second connecting portion 102 can be adjusted. Exemplarily, the clamping portion 127 and the second connecting portion 102 are rotatably connected through a first connecting rod 136, wherein the first connecting rod 136 is provided between the clamping portion 127 and the second connecting portion 102, one end of the first connecting rod 136 is connected to the clamping portion 127, and the other end of the first connecting rod 136 is connected to the second connecting portion 102.

[0064] See also Fig. 9 and Fig.10As shown, in one embodiment, one end of the first connecting rod 136 is connected to the bottom plate 129 via a ball joint structure 137, so that the bottom plate 129 can be adjusted to any angle relative to the first connecting rod 136. The other end of the first connecting rod 136 is hinged to the second connecting portion 102, and the first knob 135 includes a handle and a screw portion, the handle is fixedly connected to the screw portion, and the screw is threadedly connected to the second connecting portion 102, so that when the handle is turned, the first connecting rod 136 and the second connecting portion 102 are locked to maintain the angle relationship between the first connecting rod 136 and the second connecting portion 102. The rotation axis of the first connecting rod 136 relative to the second connecting portion 102 is parallel to the plane surrounded by the length and width of the second connecting portion 102, and the rotation axis is perpendicular to the plane surrounded by the length and thickness of the second connecting portion 102.

[0065] It should be noted that a locking screw can be provided on the ball joint structure 137 to lock the ball joint structure 137 so as to maintain the angle formed between the bottom plate 129 and one end of the first connecting rod 136; of course, a damping structure can also be provided on the ball joint structure 137 to achieve damping. In addition, an end face tooth structure can also be provided on the other end of the first connecting rod 136, so that after tightening the first knob 135, it can be ensured that the first connecting rod 136 is not easy to loosen, and that the first connecting rod 136 and the second connecting portion 102 are not easy to rotate.

[0066] In some embodiments, the fixing portion 128 includes a C-shaped frame 138 and an adjusting screw 139, and the adjusting screw 139 is threadedly connected to the C-shaped frame 138, so that the fixing portion 128 can be connected to a desktop, a rod-shaped object or a plate-shaped object to fix the fixing bracket at a desired position. Exemplarily, the end of the adjusting screw 139 located in the clamping space of the C-shaped frame 138 can be fixed with a gasket structure 140, so that the end of the adjusting screw 139 can reduce the mark left on the fixed object.

[0067] See also Fig.11 As shown, in some embodiments, the fixing portion 128 is fixedly connected to the first connecting portion 101, wherein the C-shaped frame 138 is fixedly connected to the first connecting portion 101, thereby fixing the fixing bracket at a desired position.

[0068] See also Figure 7 and Figure 8As shown, in other embodiments, the fixing portion 128 is rotatably connected to the first connecting portion 101, wherein the fixing bracket further includes a second knob 141, the first connecting portion 101 has a first face gear 142, the fixing portion 128 has a second face gear 143 that can mesh with the first face gear 142, and the second knob 141 is used to keep the first face gear 142 and the second face gear 143 in meshing state, so that the angle between the adjustment mechanism and the fixing portion 128 can be adjusted. Exemplarily, the second knob 141 includes a handle and a screw portion, and the handle is fixedly connected to the screw portion. The fixing bracket also includes a second connecting rod 145, which is an integral structure with the second face gear 143. A sleeve 144 is fixed on the C-shaped frame 138 of the fixing part 128, and the second connecting rod 145 is inserted into the sleeve 144. The screw portion of the second knob 141 passes through the first face gear 142 and the second face gear 143 to achieve a threaded connection between the screw portion of the second knob 141 and the second face gear 143. In this way, after adjusting the angle between the first connecting part 101 and the second connecting rod 145, the second knob 141 is used to achieve locking between the first face gear 142 and the second face gear 143, thereby achieving angle locking. A stop screw 146 can also be installed on the sleeve 144. When the stop screw 146 is screwed, the second connecting rod 145 is locked in the sleeve 144 to prevent the second connecting rod 145 from coming out of the sleeve 144.

[0069] The above description is only an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An adjustment mechanism, characterized in that: include: A first connecting portion (101); A gear structure (103), the gear structure (103) comprising a toothed disc (104) and a plurality of first teeth (105), the plurality of first teeth (105) being distributed along the circumference of the toothed disc (104), and the gear structure (103) and the first connecting portion (101) being relatively fixed; A second connecting portion (102), the second connecting portion (102) being rotatably connected to the first connecting portion (101); a rotation-stopping assembly, the rotation-stopping assembly being mounted on the second connecting portion (102), the rotation-stopping assembly comprising a stopper (147), the stopper (147) and the gear structure (103) being in an engaged state and a disengaged state; Wherein, in the engaged state, the stopper (147) engages with the first tooth (105) on the gear structure (103) to stop the rotation of the second connecting part (102) relative to the first connecting part (101); In the separated state, the stopper (147) is separated from the first tooth (105) on the gear structure (103), so that the second connecting part (102) can rotate relative to the first connecting part (101).

2. The adjustment mechanism according to claim 1, characterized in that: The stopper (147) is movable in a first direction to engage with or disengage the first tooth (105) on the gear structure (103); The rotation axis of the second connection part (102) relative to the first connection part (101) is perpendicular to the first direction.

3. The adjustment mechanism according to claim 2, characterized in that: The anti-rotation assembly further comprises: a button (120), wherein the button (120) is configured to be movable in a second direction to drive the stopper (147) to move in the first direction; The second direction is non-parallel to the first direction.

4. The adjustment mechanism according to claim 3, characterized in that: The stopper (147) has a first guiding inclined surface (124), the button (120) has a second guiding inclined surface (125), the angle formed between the first guiding inclined surface (124) and the second direction is an acute angle, and the angle formed between the second guiding inclined surface (125) and the second direction is an acute angle; When the second guiding slope (125) moves in the second direction and the second guiding slope (125) contacts the first guiding slope (124), the second guiding slope (125) can cause the first guiding slope (124) to move in the first direction.

5. The adjustment mechanism according to any one of claims 2 to 4, characterized in that: The anti-rotation assembly comprises a first spring (113), and the first spring (113) is used to make the stopper (147) have a tendency to move in the direction where the gear structure (103) is located; one end of the first spring (113) abuts against the stopper (147), and the other end of the first spring (113) abuts against the second connecting portion (102); The second connecting portion (102) is provided with a guide groove (114), and the stopper (147) can move along the guide direction of the guide groove (114), and the guide direction of the guide groove (114) is parallel to the first direction.

6. The adjustment mechanism according to claim 3 or 4, characterized in that: The anti-rotation assembly also includes a second spring (126), and the second spring (126) can be compressed in the second direction as the key (120) moves.

7. The adjustment mechanism according to any one of claims 1 to 4, characterized in that: The first connecting portion (101) is in a plate shape, and the second connecting portion (102) is in a plate shape; The stopper (147) is in the shape of a plate and has a first end and a second end opposite to each other. The first end has a second tooth (115) and the second tooth (115) can mesh with the first tooth (105).

8. A fixing bracket, characterized in that: include: A clamping portion (127), a fixing portion (128), and an adjusting mechanism as described in any one of claims 1 to 7, wherein the clamping portion (127) is connected to the second connecting portion (102), and the fixing portion (128) is connected to the first connecting portion (101).

9. The fixing bracket according to claim 8, characterized in that: The clamping portion (127) is rotatably connected to the second connecting portion (102), wherein the fixing bracket further comprises a first knob (135), and the first knob (135) is used to lock the rotation between the clamping portion (127) and the second connecting portion (102).

10. The fixing bracket according to claim 9, characterized in that: The fixing portion (128) is rotatably connected to the first connecting portion (101), wherein the fixing bracket further comprises a second knob (141), the first connecting portion (101) comprises a first face gear (142), the fixing portion (128) comprises a second face gear (143) capable of meshing with the first face gear (142), and the second knob (141) is used to maintain a meshing state between the first face gear (142) and the second face gear (143).

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