An angle adjustment device

Abstract

The application relates to the technical field of lamps, in particular to an angle adjusting device which comprises a fixing part, an adjusting part and a pressing limiting assembly, the fixing part is rotatably connected with the adjusting part, the adjusting part is provided with adjusting grooves and a plurality of clamping grooves, the clamping grooves are distributed in an arc shape with the rotating center of the adjusting part as the center, the fixing part is provided with through holes corresponding to the adjusting grooves; the pressing limiting assembly comprises a pressing part, an elastic part and a limiting part, the limiting part is provided with buckles at one end away from the pressing part, the limiting part penetrates through the through holes and the adjusting grooves, and the two ends of the elastic part are respectively abutted against the fixing part and the pressing part; the buckles can be separated from or clamped into the clamping grooves by pressing or loosening the pressing part. The angle can be conveniently adjusted without using other tools, and the operation is simple; in particular, when applied to lamps, the adjustment of the irradiation angle is very convenient, and the operation is convenient and fast.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lamps, in particular to an angle adjusting device. BACKGROUND

[0002] Lamps can emit different kinds of light to achieve the purpose of illumination or decoration; lamps play a very important role whether they are used for night lighting or daytime decoration. With the continuous improvement of people's living standards, different kinds of lamps have been extended for different use scenarios, such as blackboard lamps, decorative lamps, stage lamps, etc. The existing lamps, after being installed and fixed, their irradiation angle generally cannot be adjusted; and some lamps that can adjust the angle, usually need to be removed from the installation position, then adjust the irradiation angle of the lamp, and then fix the lamp on the installation position; such a structure is not only inconvenient to adjust the irradiation angle of the lamp, but also needs to use tools when adjusting, which is troublesome to operate. SUMMARY

[0003] The purpose of the present application is to provide an angle adjusting device, which aims to solve the technical problems of inconvenience in adjusting the irradiation angle of the lamp and troublesome operation in the prior art.

[0004] To achieve the above-mentioned purpose, the present application provides an angle adjusting device, which comprises a fixing part, an adjusting part and a pressing and limiting assembly, the fixing part is rotatably connected with the adjusting part, the adjusting part is provided with an adjusting groove and a plurality of clamping grooves, the plurality of clamping grooves are distributed in an arc shape with the center of rotation of the adjusting part as the center, and the fixing part is provided with a through hole corresponding to the adjusting groove; the pressing and limiting assembly comprises a pressing part, an elastic part and a limiting part, the limiting part is provided with a buckle at an end away from the pressing part, the limiting part penetrates through the through hole and the adjusting groove, and the two ends of the elastic part are respectively abutted against the fixing part and the pressing part; by pressing or loosening the pressing part, the buckle can be separated from or clamped into the clamping groove. It is convenient to adjust the angle, without the need to use other tools, and the operation is simple.

[0005] Preferably, the pressing part is connected with the limiting part; the pressing part and the elastic part are located on the side of the fixing part away from the adjusting part. The pressing part and the limiting part can be directly connected or connected through other components, and the structure design is more flexible; the pressing part and the elastic part are located on the side of the fixing part away from the adjusting part, and the structure is more compact and reasonable.

[0006] Preferably, the side wall of the limiting piece is provided with a first limiting strip, the fixing piece is provided with a first limiting groove along the moving direction of the limiting piece, and the first limiting strip is movably arranged in the first limiting groove. The first limiting strip and the first limiting groove can limit and guide the movement of the limiting piece, avoid the shaking and deviation of the limiting piece, and thus ensure the accuracy of the angle adjustment. Moreover, the limiting piece and the fixing piece can be positioned and assembled conveniently.

[0007] Preferably, the side wall of the limiting piece is provided with a second limiting strip, the fixing piece is provided with a second limiting groove along the moving direction of the limiting piece, the adjusting piece is located directly above the second limiting groove, and the second limiting strip is movably arranged in the second limiting groove. The second limiting strip and the second limiting groove can not only limit and guide the movement of the limiting piece, avoid the shaking and deviation of the limiting piece, and thus ensure the accuracy of the angle adjustment, but also block the limiting piece and the limiting piece by the adjusting piece, avoid the falling of the limiting piece from the through hole, and directly feel the pressing to the position by the blocking of the adjusting piece, so that the angle adjustment can be performed, and thus the use is more convenient.

[0008] Preferably, a plurality of positioning holes are formed in the adjusting piece, the positioning holes correspond to the clamping grooves one by one, the fixing piece is provided with a positioning piece, and when the buckle is clamped in the clamping groove, the positioning piece is clamped in the positioning hole. The positioning hole and the positioning piece can not only be used for the positioning between the adjusting piece and the fixing piece, but also intuitively reflect whether the adjusted angle is in place, so that the user can use conveniently, the adjustment accuracy is higher, and the adjustment is more convenient and fast.

[0009] Preferably, a limiting column is arranged on the side of the fixing piece away from the adjusting piece and located at the through hole, the limiting column is hollow inside and open at both ends, and the pressing piece is movably arranged in the limiting column. The limiting column can limit and guide the pressing piece, avoid the shaking and deviation of the pressing piece during the pressing process, and simultaneously protect the limiting piece, the elastic piece and the pressing piece, so as to ensure the compactness and stability of the structure.

[0010] Preferably, a limiting table is arranged in the limiting column, the limiting piece penetrates through the limiting table, one end of the elastic piece abuts against the limiting table, and the other end of the elastic piece abuts against the pressing piece. The limiting table can also limit the elastic piece and the pressing piece, and avoid the excessive movement of the pressing piece and the limiting piece.

[0011] Preferably, a first connecting member is further included, which is embedded in the fixing member through the adjusting member to connect the adjusting member and the fixing member, and the first connecting member is the rotation center of the adjusting member.

[0012] Preferably, a second connecting member is further included, the adjusting member is provided with an arc-shaped slot, the arc-shaped slot is centered at the rotation center of the adjusting member, the second connecting member is fixed on the fixing member through the arc-shaped slot, and the connecting head of the second connecting member is located on the side of the adjusting member away from the fixing member. The second connecting member can improve the stability of the structure of the adjusting member and the fixing member, and avoid the bending of the adjusting member. The arc-shaped slot provided on the adjusting member can ensure the normal rotation of the adjusting member and the angle adjustment effect.

[0013] Preferably, a gap is left between the connecting head and the end face of the adjusting member. The mutual friction between the connecting head and the adjusting member is avoided, and the rotation of the adjusting member is affected.

[0014] Preferably, the adjusting member includes a mounting plate and an adjusting plate connected with each other, the mounting plate is provided with a first mounting hole, and the adjusting slot and the clamping slot are provided on the adjusting plate.

[0015] The fixing member includes a first connecting arm and a second connecting arm connected with each other, the first connecting arm is provided with a second mounting hole, and the through hole is provided on the second connecting arm. The structure of the adjusting member and the fixing member can facilitate the application of the angle adjusting device to the lamp.

[0016] The angle adjusting device has at least the following beneficial effects: the fixing member and the adjusting member are rotatably connected, the clamping slot is provided on the adjusting member, the buckle on the limiting member is separated from or clamped into the clamping slot when the pressing member is pressed or released, the angle can be adjusted after the separation, and the angle can be fixed after the clamping; therefore, the angle can be conveniently adjusted without using other tools, and the operation is simple; in particular, when applied to the lamp, the adjustment of the illumination angle is very convenient, the user can adjust the illumination angle at will according to the own needs, and the operation is convenient and fast. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only show some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor based on the drawings shown.

[0018] Figure 1Structure diagram of angle adjusting device of the present application;

[0019] Figure 2 Structure diagram of another angle of angle adjusting device of the present application;

[0020] Figure 3 Structure diagram of explosion of angle adjusting device of the present application;

[0021] Figure 4 Structure diagram of cross section of angle adjusting device of the present application;

[0022] Figure 5 Structure diagram of Figure 4 Structure diagram of local enlargement of A part of the present application;

[0023] Figure 6 Structure diagram of fixing member of the present application;

[0024] Figure 7 Structure diagram of another angle of fixing member of the present application;

[0025] Figure 8 Front view structure diagram of fixing member of the present application;

[0026] Figure 9 Structure diagram of adjusting member of the present application;

[0027] Figure 10 Front view structure diagram of adjusting member of the present application;

[0028] Figure 11 Structure diagram of limiting member of the present application;

[0029] Figure 12 Structure diagram of second connecting member of the present application.

[0030] In the drawings: 1 - fixing member, 11 - through hole, 12 - first limiting groove, 13 - second limiting groove, 14 - limiting column, 15 - limiting table, 16 - first connecting arm, 17 - second connecting arm, 18 - second mounting hole, 2 - adjusting member, 21 - adjusting groove, 22 - clamping groove, 23 - positioning hole, 24 - arc-shaped groove, 25 - mounting plate, 26 - adjusting plate, 27 - first mounting hole, 3 - pressing limiting assembly, 31 - pressing member, 32 - elastic member, 33 - limiting member, 331 - buckle, 332 - first limiting strip, 333 - second limiting strip, 4 - positioning member, 5 - first connecting member, 6 - second connecting member, 61 - connecting head, 62 - connecting end, 7 - gasket.

[0031] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the drawings. DETAILED DESCRIPTION

[0032] With reference to the drawings and the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0033] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications also change accordingly.

[0034] In addition, if the embodiments of the present application involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person of ordinary skill in the art can realize it, and when the combination of technical solutions contradicts each other or cannot be realized, it should be considered that the combination of technical solutions does not exist and is not within the scope of protection required by the present application.

[0035] As shown in Figures 1 to 12 An angle adjusting device includes a fixing member 1, an adjusting member 2 and a pressing and limiting assembly 3. The fixing member 1 is rotatably connected with the adjusting member 2. The adjusting member 2 is provided with an adjusting groove 21 and a plurality of clamping grooves 22. The plurality of clamping grooves 22 are distributed in an arc shape with the center of rotation of the adjusting member 2 as the center. The fixing member 1 is provided with a through hole 11 corresponding to the adjusting groove 21. The pressing and limiting assembly 3 includes a pressing member 31, an elastic member 32 and a limiting member 33. The limiting member 33 is provided with a buckle 331 at an end away from the pressing member 31. The limiting member 33 penetrates through the through hole 11 and the adjusting groove 21. The two ends of the elastic member 32 are respectively abutted against the fixing member 1 and the pressing member 31. By pressing or loosening the pressing member 31, the buckle 331 can be separated from or clamped into the clamping groove 22.

[0036] Further, as shown in Figure 4 The pressing member 31 is connected with the limiting member 33. The pressing member 31 and the elastic member 32 are located on the side of the fixing member 1 away from the adjusting member 2.

[0037] Please refer to Figures 1 to 4 , Figure 9 andFigure 10 The angle adjusting device is mainly used for blackboard lamps, stage lamps, spotlights and other lamps, and the angle of the fixing member 1 or the adjusting member 2 is adjusted to adjust the irradiation angle of the lamps. The irradiation angle of the lamps can be adjusted to a preset position according to actual needs, so that the light of the lamps can irradiate to the specified position. The fixing member 1 and the adjusting member 2 are relatively rotatably connected together, one of the two is connected with the mounting surface, and the other is connected with the lamps, and the relative rotation of the fixing member 1 and the adjusting member 2 can realize the adjustment of the irradiation angle of the lamps relative to the mounting surface; the mounting surface refers to the ceiling, the wall, the decorative plate, the lamp support and the like. The adjusting groove 21 and the plurality of clamping grooves 22 are formed on the adjusting member 2, the adjusting groove 21 is an arc-shaped through groove, and the plurality of clamping grooves 22 are in communication with the adjusting groove 21; in the projection plane perpendicular to the end face of the adjusting member 2 where the clamping grooves 22 are located, the plurality of clamping grooves 22 are distributed in an arc shape with the rotation center of the adjusting member 2 or the fixing member 1 as the center; the through hole 11 corresponding to the adjusting groove 21 is formed on the fixing member 1, and the through hole 11 and the adjusting groove 21 are in communication after the fixing member 1 and the adjusting member 2 are assembled.

[0038] Please refer to Figures 1 to 4The pressing limiting assembly 3 comprises a pressing piece 31, an elastic piece 32 and a limiting piece 33. The pressing piece 31 is connected with the limiting piece 33, specifically, the two are connected together by a screw. The main body of the limiting piece 33 is in a columnar structure, which is movably inserted into the through hole 11. One end of the limiting piece 33 is connected with the pressing piece 31, and the other end passes through the through hole 11 and is located in the adjusting groove 21, and the other end is provided with a buckle 331. The elastic piece 32 and the pressing piece 31 are both located on the side of the fixed piece 1 away from the adjusting piece 2, and the two ends of the elastic piece 32 are respectively abutted against the fixed piece 1 and the pressing piece 31. In the natural state (i.e. the state without external force pressing the pressing piece 31), the elastic piece 32 gives the pressing piece 31 a force away from the fixed piece 1 due to its own elastic force, and the pressing piece 31 and the limiting piece 33 are connected together, so the limiting piece 33 will be subjected to a force from the adjusting piece 2 to the fixed piece 1. At this time, the buckle 331 on the limiting piece 33 is embedded in the clamping groove 22, and the buckle 331 is abutted against the end face of the fixed piece 1 close to the adjusting piece 2. Because the buckle 331 is clamped in the clamping groove 22, the fixed piece 1 and the adjusting piece 2 cannot rotate relative to each other, and the illumination angle of the lamp is fixed at this time. When it is necessary to adjust the illumination angle, the pressing piece 31 is pressed, so that the pressing piece 31 and the limiting piece 33 move from the side of the fixed piece 1 to the side of the adjusting piece 2. At this time, the elastic piece 32 is compressed, and the buckle 331 is separated from the clamping groove 22, so the clamping groove 22 no longer clamps the buckle 331 tightly, and the adjusting piece 2 and the fixed piece 1 can rotate relative to each other. When the adjusting piece 2 or the fixed piece 1 is rotated to the desired angle, the buckle 331 corresponds to another clamping groove 22. At this time, the pressing piece 31 is released, and the elastic piece 32 will drive the pressing piece 31 and the limiting piece 33 to move from the side of the adjusting piece 2 to the side of the fixed piece 1 under the action of its own elasticity, and then the buckle 331 on the limiting piece 33 is clamped into the corresponding clamping groove 22. At this time, the adjusting piece 2 and the fixed piece 1 cannot rotate relative to each other, the illumination angle of the lamp is fixed, and the illumination angle is different from before, so the adjustment of the illumination angle of the lamp is realized.

[0039] As shown in Figure 3 and Figure 4 , specifically, the pressing piece 31 is in a cap-shaped structure, i.e. the pressing piece 31 is hollow inside and has an opening at one end. The limiting piece 33 extends into the inside of the pressing piece 31 from the opening. A hole is formed at the end of the pressing piece 31 away from the limiting piece 33, and a hole is also formed at the end of the limiting piece 33 close to the pressing piece 31. A screw is screwed into the hole of the limiting piece 33 through the hole of the pressing piece 31, so as to connect the pressing piece 31 and the limiting piece 33 together. The elastic piece 32 can be a spring, and the spring is sleeved on the limiting piece 33.

[0040] It should be noted that the pressing piece 31 and the limiting piece 33 are not necessarily a split structure, and the two can also be a one-piece structure. When the pressing piece 31 and the limiting piece 33 are a split structure, the spring can be first sleeved on the limiting piece 33 from one end of the limiting piece 33, and then the pressing piece 31 is connected with the limiting piece 33, so as to facilitate assembly. When the pressing piece 31 and the limiting piece 33 are a one-piece structure, one end of the spring can be screwed into the limiting piece 33, and then the spring is twisted to sleeve the limiting piece 33; or the spring is first expanded to sleeve the limiting piece 33 and then released, and the spring restores to the original state by its own deformation ability; or the spring does not need to be sleeved on the limiting piece 33; or other structures are used as the elastic piece 32. Therefore, the above connection of the pressing piece 31 and the limiting piece 33 cannot be understood as only two independent parts connected together. It should be noted that the pressing piece 31 and the limiting piece 33 can be directly connected or indirectly connected, as long as the limiting piece 33 can be driven when the pressing piece 31 is pressed.

[0041] As shown in Figure 9 and Figure 10 A plurality of clamping grooves 22 are formed on the adjusting piece 2, and the specific number of the clamping grooves 22 is not limited, and the spacing between adjacent two clamping grooves 22 is also not limited, but the number and the spacing can be set according to the angle range that the device can adjust. For example, the angle range that the angle adjusting device can adjust is 60 degrees, the unit adjustment angle is 5 degrees (i.e. the angle between adjacent two clamping grooves 22 is 5 degrees), at this time, the number of clamping grooves 22 is 12; the angle range that can be adjusted is 60 degrees, if the unit adjustment angle is set to 10 degrees, then the number of clamping grooves 22 is 6. If the unit adjustment angle is 5 degrees, at this time the angle range that can be adjusted is 90 degrees, then the number of clamping grooves 22 is 18. Therefore, the number of clamping grooves 22, the angle between the clamping grooves 22 and the angle range that can be adjusted can be set according to actual needs. In addition, the angle between adjacent two clamping grooves 22 is not necessarily equal, that is, the unit adjustment angle is not necessarily a common value; for example, the plurality of clamping grooves 22 include a first clamping groove, a second clamping groove, a third clamping groove and a fourth clamping groove arranged in sequence, the angle between the first clamping groove and the second clamping groove is 5 degrees, the angle between the second clamping groove and the third clamping groove is 10 degrees, and the angle between the third clamping groove and the fourth clamping groove is 15 degrees; therefore, the angle between the clamping grooves 22 and the setting of the angle can be set according to actual use needs.

[0042] Some existing angle-adjustable lamps need to be dismounted from the installation position, then the angle of the lamp is adjusted, and then the lamp is fixed on the installation position when adjusting the angle. Such structure is inconvenient to adjust the angle of the lamp, and tools are needed when adjusting, which is troublesome. The fixed part 1 and the adjusting part 2 are rotatably connected, and a clamping groove 22 is formed on the adjusting part 2. By setting the pressing limiting assembly 3, when the pressing part 31 is pressed or released, the buckle 331 on the limiting part 33 will be separated or clamped into the clamping groove 22. After separation, the angle can be adjusted, and after clamping, the angle can be fixed. Therefore, it is convenient to adjust the angle, without the need for other tools, and the operation is simple. Especially when applied to lamps, the adjustment of the irradiation angle is very convenient, and the user can adjust the irradiation angle at will according to their own needs, and the operation is convenient and fast.

[0043] Further, as shown in Figure 8 and Figure 11 , the side wall of the limiting part 33 is provided with a first limiting strip 332, and the fixed part 1 is provided with a first limiting groove 12 along the moving direction of the limiting part 33. The first limiting strip 332 is movably arranged in the first limiting groove 12.

[0044] The side wall of the limiting part 33 is provided with a first limiting strip 332 protruding outward, and the length direction of the first limiting strip 332 is consistent with the length direction of the limiting part 33. The fixed part 1 is provided with a first limiting groove 12 along the moving direction of the limiting part 33. The first limiting groove 12 is specifically formed on the side wall of the through hole 11 and communicates with the through hole 11. The length direction of the first limiting groove 12 is the same as the axis direction of the through hole 11, the same as the length direction of the first limiting strip 332, and the same as the moving direction of the limiting part 33. The first limiting strip 332 is movably arranged in the first limiting groove 12, that is, when the pressing part 31 is pressed or released, the limiting part 33 moves together with the first limiting strip 332. The limiting part 33 moves along the axis direction of the through hole 11 in the through hole 11, and the first limiting strip 332 moves in the same direction in the first limiting groove 12. By setting the first limiting strip 332 and the first limiting groove 12, the movement of the limiting part 33 can be limited and guided, avoiding the shaking and deviation of the limiting part 33, so as to ensure the accuracy of angle adjustment. Moreover, the limiting part 33 and the fixed part 1 can be conveniently positioned and assembled.

[0045] Further, as shown in Figure 8 and Figure 11 , the side wall of the limiting part 33 is provided with a second limiting strip 333, and the fixed part 1 is provided with a second limiting groove 13 along the moving direction of the limiting part 33. The adjusting part 2 is located directly above the second limiting groove 13, and the second limiting strip 333 is movably arranged in the second limiting groove 13.

[0046] The side wall of the limiting piece 33 is provided with a second limiting strip 333 protruding outward, and the length direction of the second limiting strip 333 is consistent with the length direction of the limiting piece 33; the structure of the second limiting strip 333 is consistent with that of the first limiting strip 332, and in the horizontal projection (referring to the plane in which the diameter of the limiting piece 33 is located), the two are perpendicular to each other, and in the vertical projection plane (referring to the plane in which the axis of the limiting piece 33 is located), the two are parallel to each other. The fixing piece 1 is provided with a second limiting slot 13 in the moving direction of the limiting piece 33, and the second limiting slot 13 is specifically provided on the side wall of the through hole 11 and communicates with the through hole 11, and the length direction of the second limiting slot 13 is the same as that of the first limiting slot 12. The second limiting strip 333 is movably arranged in the second limiting slot 13, and when the limiting piece 33 moves in the through hole 11, the second limiting strip 333 moves in the second limiting slot 13. The adjusting piece 2 is located directly above the second limiting slot 13, that is, the adjusting piece 2 covers the second limiting slot 13, and when the second limiting strip 333 extends from one end of the second limiting slot 13 close to the adjusting piece 2, the adjusting piece 2 will abut against the second limiting strip 333, so that the second limiting strip 333 cannot completely separate from the second limiting slot 13. The second limiting strip 333 and the second adjusting slot 21 can not only limit and guide the movement of the limiting piece 33, but also avoid the shaking and deviation of the limiting piece 33, so as to ensure the accuracy of angle adjustment; moreover, the second limiting strip 333 and the limiting piece 33 can be blocked by the adjusting piece 2, so as to avoid the limiting piece 33 from falling off the through hole 11, and the blocking of the adjusting piece 2 can also make the user directly feel that the pressing is in place, so that the angle can be adjusted, and therefore the use is more convenient.

[0047] Further, as shown in Figure 3 、 Figure 9 and Figure 10 , a plurality of positioning holes 23 are formed on the adjusting piece 2, and the positioning holes 23 correspond to the clamping grooves 22 one by one; the fixing piece 1 is provided with a positioning piece 4, and when the buckle 331 is clamped in the clamping groove 22, the positioning piece 4 is clamped in the positioning hole 23.

[0048] The positioning hole 23 is located on the side of the clamping groove 22 away from the adjusting groove 21, and the number of the positioning hole 23 is consistent with that of the clamping groove 22 and corresponds one by one. In the projection plane perpendicular to the end face of the adjusting part 2 where the positioning hole 23 is located, the plurality of positioning holes 23 are distributed in an arc shape with the rotation center of the adjusting part 2 / fixed part 1 as the center. The fixed part 1 is provided with a positioning part 4, which faces the side where the adjusting part 2 is located and protrudes from the fixed part 1. When the buckle 331 is clamped in the clamping groove 22, the positioning part 4 is clamped in the positioning hole 23. The positioning part 4 can specifically adopt a wave bead screw. A threaded hole is formed in the fixed part 1, and then the threaded shell of the wave bead screw is screwed into the threaded hole, so that the steel ball of the wave bead screw protrudes from the fixed part 1 and is close to the end face of the adjusting part 2. When the angle needs to be adjusted, the pressing part 31 is pressed, the buckle 331 is detached from the clamping groove 22, the adjusting part 2 is rotated along the rotation center, the end face of the adjusting part 2 presses the steel ball, the steel ball moves to the inside of the threaded shell, and the spring inside the threaded shell is pressed. When adjusted to a certain extent, the steel ball is opposite to the positioning hole 23. At this time, the end face of the adjusting part 2 no longer presses the steel ball, and the steel ball moves to the side where the adjusting part 2 is located under the action of the spring to be clamped in the positioning hole 23. At this time, the buckle 331 is opposite to the clamping groove 22. After the pressing part 31 is loosened, the buckle 331 is clamped in the clamping groove 22. During the adjustment process, the function of adjusting and positioning is achieved, so as to complete the precise adjustment of the angle. When the angle adjustment is completed, the pressing part 31 needs to be loosened. At this time, since the steel ball is clamped in the positioning hole 23, it is not necessary to observe whether the buckle 331 and the clamping groove 22 are in the opposite state. When the adjusting part 2 is rotated, the buckle 331 is detached from the clamping groove 22, so it is difficult to determine whether the specified clamping groove 22 moves to the position corresponding to the buckle 331. The positioning part 4 and the positioning hole 23 are provided. When the positioning part 4 is clamped in the positioning hole 23 during the rotation of the adjusting part 2, the user can directly feel the clamping or limiting feeling brought by the clamping of the positioning part 4 in the positioning hole 23, so the user can directly perceive that the angle adjustment is in place. At this time, the pressing part 31 can be loosened. Therefore, the positioning hole 23 and the positioning part 4 can not only be used for positioning between the adjusting part 2 and the fixed part 1, but also can intuitively reflect whether the adjusted angle is in place, which is convenient for the user to use and has higher adjustment precision, and the adjustment is more convenient and fast.

[0049] Further, as shown in Figure 7 The fixed part 1 is provided with a limiting column 14 on the side away from the adjusting part 2 and at the through hole 11. The limiting column 14 is hollow inside and open at both ends. The pressing part 31 is movably arranged in the limiting column 14.

[0050] The limiting column 14 is hollow inside and has two ends open, one end of which is connected with the fixing member 1 and communicates with the through hole 11; the limiting column 14 is of an integral structure and is integrally formed with the fixing member 1; the inner diameter of the limiting column 14 is greater than the diameter of the pressing member 31, and the pressing member 31 and the limiting member 33 are movably arranged in the limiting column 14; of course, when the pressing member 31 is not pressed, the pressing member 31 will protrude from the limiting column 14 to facilitate the user to directly press the pressing member 31. Since the limiting member 33 is located in the limiting column 14 and the through hole 11, and the first limiting strip 332 and the second limiting strip 333 are arranged on the limiting member 33, the first limiting groove 12 and the second limiting groove 13 formed in the side wall of the through hole 11 extend to the side wall of the limiting column 14 to ensure that the limiting member 33 can move in the limiting column 14 and the through hole 11. The limiting column 14 can limit and guide the pressing member 31 to avoid the shaking and deviation of the pressing member 31 during the pressing process; at the same time, the limiting column 14 can also provide certain protection for the limiting member 33, the elastic member 32 and the pressing member 31 to ensure the compactness and stability of the structure. On the other hand, through the design of the length of the limiting member 33, the length of the buckle 331 and the depth of the clamping groove 22, the user can touch the end face of the limiting column 14 away from the fixing member 1 when pressing the pressing member 31, which indicates that the buckle 331 is separated from the clamping groove 22, at which time the adjusting member 2 can be rotated, and therefore the use is more convenient.

[0051] Further, as shown in Figure 7 The limiting column 14 is provided with a limiting table 15, the limiting member 33 penetrates through the limiting table 15, and one end of the elastic member 32 abuts against the limiting table 15 and the other end abuts against the pressing member 31.

[0052] The limiting table 15 is hollow inside to allow the limiting member 33 to penetrate through the limiting table 15, and the first limiting groove 12 and the second limiting groove 13 formed in the side wall of the through hole 11 specifically extend to the inner side wall of the limiting table 15. The elastic member 32 is located in the limiting column 14 and one end of which abuts against the end face of the limiting table 15 and the other end abuts against the pressing member 31, and the elastic member 32 is stored with power through the extrusion of the limiting table 15 and the pressing member 31. The limiting table 15 can also limit the elastic member 32 and the pressing member 31 to avoid excessive movement of the pressing member 31 and the limiting member 33.

[0053] Further, as shown in Figures 1 to 4 The first connecting member 5 is embedded in the fixing member 1 through the adjusting member 2 to connect the adjusting member 2 with the fixing member 1, and the first connecting member 5 is the rotation center of the adjusting member 2.

[0054] The first connecting piece 5 is used for connecting the adjusting piece 2 and the fixing piece 1, and the first connecting piece 5 is the rotation center of the adjusting piece 2 and the fixing piece 1 after connecting the two. The first connecting piece 5 can be a screw. The first connecting piece 5 is arranged to connect the adjusting piece 2 and the fixing piece 1 together, and the rotation center is fixed and cannot be deviated. More preferably, a gasket 7 is further sleeved on the first connecting piece 5, and the gasket 7 is located between the connecting head 61 of the first connecting piece 5 and the adjusting piece 2. The gasket 7 can be a rubber ring. The gasket 7 is arranged to increase the friction between the first connecting piece 5 and the adjusting piece 2, the first connecting piece 5 is not easy to loosen, and the first connecting piece 5, the adjusting piece 2 and the fixing piece 1 are assembled more stably, and the rotation center is not easy to deviate.

[0055] Further, as shown in Figures 1 to 5 、 Figure 9 and Figure 10 , it further comprises a second connecting piece 6, the adjusting piece 2 is provided with an arc-shaped groove 24, and the arc-shaped groove 24 takes the rotation center of the adjusting piece 2 as the center, the second connecting piece 6 passes through the arc-shaped groove 24 and is fixed on the fixing piece 1, and the connecting head 61 of the second connecting piece 6 is located on the side of the adjusting piece 2 away from the fixing piece 1.

[0056] The arc-shaped slot 24 is located between the adjusting slot 21 and the rotation center of the adjusting member 2, and the arc-shaped slot 24 and the adjusting slot 21 both take the rotation center of the adjusting member 2 as the center. The second connecting member 6 is composed of a connecting end 62 and a connecting head 61 which are connected to each other and perpendicular to each other. The connecting end 62 and the connecting head 61 are both circular. The diameter of the connecting end 62 is smaller than the width of the arc-shaped slot 24, and the diameter of the connecting head 61 is larger than the width of the arc-shaped slot 24. The connecting end 62 is embedded in the arc-shaped slot 24, and the connecting head 61 is located on the side of the adjusting member 2 away from the fixing member 1. Specifically, the second connecting member 6 can be directly fixed on the fixing member 1, or the second connecting member 6 is fixed on the fixing member 1 by using fasteners (such as screws). For example, the second connecting member 6 is designed as a hollow structure with both ends through, a threaded hole is opened at the position corresponding to the arc-shaped slot 24 of the fixing member 1, a screw is passed through the second connecting member 6 and screwed into the threaded hole of the fixing member 1, so as to fix the second connecting member 6 on the fixing member 1. The adjusting member 2 and the fixing member 1 are mainly connected and fixed by the first connecting member 5, and the first connecting member 5 is generally fixed at one end of the two, and the end away from the first connecting member 5 is the movable end, so as to facilitate the adjustment of the angle. If the size of the adjusting member 2 and the fixing member 1 is large, the two are connected only by the first connecting member 5, which is easy to cause the connection to be not firm. Especially when the fixing member 1 and the adjusting member 2 are connected with other parts (such as lamps, mounting racks, etc.), the adjusting member 2 and the fixing member 1 need to bear part of the gravity of the other parts, so the adjusting member 2 / fixing member 1 is easy to bend and deform. By opening the arc-shaped slot 24 on the adjusting member 2 and fixing the second connecting member 6 on the fixing member 1, the connecting head 61 is used to assist the adjusting member 2 and the fixing member 1 to be close, and more importantly, the connecting head 61 can resist the adjusting member 2 when the adjusting member 2 has a bending tendency away from the fixing member 1, so as to avoid the bending of the adjusting member 2 and cause the buckle 331 to be unable to be clamped in the clamping groove 22, so that the angle adjustment function is invalid. By opening the arc-shaped slot 24, it can be ensured that after the second connecting member 6 is added, the adjusting member 2 can also rotate relative to the fixing member 1 around the rotation center, without affecting the angle adjustment function. Therefore, the second connecting member 6 can improve the stability of the structure of the adjusting member 2 and the fixing member 1, and avoid the bending of the adjusting member 2. By opening the arc-shaped slot 24 on the adjusting member 2, the normal rotation of the adjusting member 2 can be ensured, and the angle adjustment effect can be ensured.

[0057] Further, as Figure 5 and Figure 12As shown, a gap is left between the connecting head 61 and the end face of the adjusting piece 2. Since the adjusting piece 2 rotates around its rotation center when adjusting the angle, and the second connecting piece 6 is connected with the fixing piece 1, the adjusting piece 2 and the second connecting piece 6 will generate relative movement; if the connecting head 61 is in close contact with the end face of the adjusting piece 2, the two will rub against each other when the adjusting piece 2 rotates, which will affect the rotation of the adjusting piece 2. By designing the connecting head 61 not to be in contact with the end face of the adjusting piece 2 (a gap is left between the two), the two will not rub against each other, and the rotation of the adjusting piece 2 will not be affected.

[0058] Further, as shown in the drawings, Figures 9 to 10 The adjusting piece 2 comprises a mounting plate 25 and an adjusting plate 26 connected with each other, the mounting plate 25 is provided with a first mounting hole 27, the adjusting groove 21 and the clamping groove 22 are provided on the adjusting plate 26; the fixing piece 1 comprises a first connecting arm 16 and a second connecting arm 17 connected with each other, the first connecting arm 16 is provided with a second mounting hole 18, and the through hole 11 is provided on the second connecting arm 17.

[0059] The adjusting piece 2 comprises a mounting plate 25 and an adjusting plate 26 connected with each other, and the mounting plate 25 and the adjusting plate 26 can be perpendicular to each other; the first mounting hole 27 is provided on the mounting plate 25, and the first mounting hole 27 is mainly used for mounting the adjusting piece 2 on other components; the adjusting groove 21, the clamping groove 22, the positioning hole 23 and the arc-shaped groove 24 are all provided on the adjusting plate 26. The fixing piece 1 comprises a first connecting arm 16 and a second connecting arm 17 connected with each other, and the first connecting arm 16 and the second connecting arm 17 can be perpendicular to each other; the second mounting hole 18 is provided on the first connecting arm 16, and the second mounting hole 18 is mainly used for mounting the fixing piece 1 on other components; and the through hole 11 is specifically provided on the second connecting arm 17. Taking the application of the angle adjusting device on a blackboard lamp as an example, the adjusting piece 2 is connected with a hanger, and the fixing piece 1 is fixed on the lamp; specifically, an outer thread is arranged at one end of the hanger, and the hanger passes through the first mounting hole on the mounting plate, and then a nut is screwed into the hanger, so as to connect and fix the adjusting piece 2 with the hanger; a threaded hole is arranged on the lamp, a screw passes through the second mounting hole 18 on the first connecting arm 16 and is screwed into the threaded hole of the lamp, so as to connect and fix the fixing piece 1 with the lamp; when adjusting the illumination angle of the lamp, the pressing piece 31 is pressed, and then the lamp is adjusted; the fixing piece 1 and the lamp rotate together relative to the adjusting piece 2 and the hanger by a certain angle, and after the adjustment is completed, the pressing piece 31 is loosened. The design of the structure of the adjusting piece 2 and the fixing piece 1 can facilitate the application of the angle adjusting device to the lamp.

[0060] The above only describes the preferred embodiments of the present application, and does not limit the patent range of the present application, and any equivalent structural transformation made under the inventive concept of the present application, and direct / indirect application in other related technical fields are included in the patent protection range of the present application.

Claims

1. An angle adjustment device, characterized in that Including fixing part (1), adjusting part (2) and press limiting assembly (3), the fixing part (1) is rotatably connected with the adjusting part (2), the adjusting part (2) is provided with adjusting groove (21) and multiple clamping grooves (22), multiple the clamping groove (22) is with the rotating center of the adjusting part (2) as the center of circle and is distributed in arc shape, the fixing part (1) is provided with the through hole (11) corresponding with the adjusting groove (21); The press limiting assembly (3) includes press part (31), elastic part (32) and limiting part (33), the limiting part (33) is provided with buckle (331) at the end away from the press part (31), the limiting part (33) penetrates the through hole (11) and the adjusting groove (21), the both ends of the elastic part (32) are respectively located on the fixing part (1) and the press part (31);By pressing or loosening the press part (31), the buckle (331) can be separated or clamped into the clamping groove (22); The press part (31) is connected with the limiting part (33);The press part (31) and the elastic part (32) are located on the side of the fixing part (1) away from the adjusting part (2); The side wall of the limiting part (33) is provided with first limiting strip (332), the fixing part (1) is provided with first limiting groove (12) along the moving direction of the limiting part (33), the first limiting strip (332) is movably arranged in the first limiting groove (12); The side wall of the limiting part (33) is provided with second limiting strip (333), the fixing part (1) is provided with second limiting groove (13) along the moving direction of the limiting part (33), the adjusting part (2) is located above the second limiting groove (13), the second limiting strip (333) is movably arranged in the second limiting groove (13); The length direction of the second limiting strip (333) is consistent with the length direction of the limiting part (33), the structure of the second limiting strip (333) is consistent with the structure of the first limiting strip (332), the projection of the first limiting strip (332) and the second limiting strip (333) on the horizontal projection plane is perpendicular to each other, the projection of the first limiting strip (332) and the second limiting strip (333) on the vertical projection plane is parallel to each other, the horizontal projection plane is the plane where the diameter of the limiting part (33) is located, and the vertical projection plane is the plane where the axis of the limiting part (33) is located.

2. An angular adjustment device according to claim 1, characterized in that Multiple positioning holes (23) are formed in the adjusting part (2), and the positioning holes (23) correspond one by one to the clamping grooves (22);The fixing part (1) is provided with a positioning part (4), when the buckle (331) is clamped in the clamping groove (22), the positioning part (4) is clamped in the positioning hole (23).

3. An angular adjustment device according to claim 1, characterized in that The fixing part (1) is provided with a limiting column (14) on the side away from the adjusting part (2) and at the through hole (11), the limiting column (14) is hollow inside and open at both ends, and the press part (31) is movably arranged in the limiting column (14). The limiting column (14) is internally provided with a limiting platform (15), the limiting member (33) penetrates through the limiting platform (15), one end of the elastic member (32) abuts against the limiting platform (15), and the other end abuts against the pressing member (31).

4. An angular adjustment device according to claim 1, characterized in that Further comprising a first connecting member (5), the first connecting member (5) is embedded on the fixing member (1) through the adjusting member (2) to connect the adjusting member (2) and the fixing member (1), and the first connecting member (5) is the rotation center of the adjusting member (2).

5. An angular adjustment device according to claim 1, characterized in that Further comprising a second connecting member (6), the adjusting member (2) is provided with an arc-shaped slot (24), the arc-shaped slot (24) takes the rotation center of the adjusting member (2) as the center, the second connecting member (6) is fixed on the fixing member (1) through the arc-shaped slot (24), and the connecting head (61) of the second connecting member (6) is located on the side of the adjusting member (2) away from the fixing member (1).

6. An angular adjustment device according to claim 5, characterized in that The connecting head (61) and the end surface of the adjusting member (2) are left with a gap.

7. An angular adjustment device according to claim 1, characterized in that The adjusting member (2) comprises an installation plate (25) and an adjusting plate (26) connected with each other, the installation plate (25) is provided with a first installation hole (27), the adjusting slot (21) and the clamping slot (22) are arranged on the adjusting plate (26); The fixing member (1) comprises a first connecting arm (16) and a second connecting arm (17) connected with each other, the first connecting arm (16) is provided with a second installation hole (18), and the through hole (11) is arranged on the second connecting arm (17).

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