Novel radian adjusting mechanism

Abstract

The utility model relates to a novel radian adjusting mechanism which comprises a driving rod, two adjusting shells, two adjusting assemblies and a locking assembly, the two adjusting shells are arranged at the two ends of the driving rod correspondingly, each adjusting shell comprises a first shell part and a second shell part, and the first shell parts and the second shell parts are in sliding fit; the two first shell parts are connected with the two ends of the driving rod correspondingly. The two adjusting assemblies are arranged on the two adjusting shells correspondingly, each adjusting assembly comprises an adjusting sliding block, the adjusting sliding blocks are matched with the second shell part in a sliding mode, the sliding track of the adjusting sliding blocks is in an arc shape, when the second shell part and the first shell part slide relatively, the adjusting sliding blocks slide along the arc-shaped path relative to the second shell part, and adjusting protruding blocks are fixedly arranged on the adjusting sliding blocks. The second shell part is provided with a plurality of adjusting grooves, the adjusting grooves are evenly distributed along the side line of the second shell part, and the adjusting protruding block penetrates through and is clamped and matched with any adjusting groove. The method has the effect of accurately adjusting the radian of the display screen.

Description

Technical Field

[0001] The present application relates to the field of curvature adjustment of curved display screens, and in particular to a novel curvature adjustment mechanism. Background Art

[0002] The curved screen includes multiple display units and a box body arranged at the rear side of the multiple display units. The front surface of the box body is a curved surface. The multiple display units are spliced ​​on the curved surface formed by the front surface of the box body so that the front surfaces of the multiple display units form a curved surface to form a curved screen. The current curved screen generally adjusts the curvature of the curved screen through a curvature adjustment mechanism behind the screen.

[0003] The curvature adjustment mechanism currently on the market generally includes a first splicing body and a second splicing body. The first splicing body is provided with a curved slider, and the second splicing body is provided with an extension block. The extension block has a slide groove that cooperates with the curved slider. When the curved slider is inserted into the slide groove, the second splicing block slides and cooperates with the first splicing block, so that when the curvature of the display screen needs to be changed, the curvature of the display screen can be changed through the relative sliding between the first splicing block and the second splicing block.

[0004] Regarding the above-mentioned related technologies, although the purpose of adjusting the curvature of the display screen is achieved, the sliding distance of the first splicing body and the second splicing body is difficult to control during the sliding process, making it difficult to accurately adjust the curvature of the display screen. Summary of the Invention

[0005] In order to accurately adjust the curvature of a display screen, the present application provides a new curvature adjustment mechanism.

[0006] The present application provides a novel curvature adjustment mechanism that adopts the following technical solutions:

[0007] A novel arc adjustment mechanism includes a drive rod, two sets of adjustment housings, two sets of adjustment assemblies, and a locking assembly. The two adjustment housings are respectively arranged at both ends of the drive rod. The two adjustment housings each include a first housing portion and a second housing portion. The first housing portion and the second housing portion are slidably engaged with each other, and the two first housing portions are respectively connected to the two ends of the drive rod.

[0008] The two adjustment components are respectively arranged on the two adjustment shells, and the adjustment components include an adjustment slider, which is slidably fitted in the second shell part, and the sliding trajectory of the adjustment slider is arc-shaped. When the second shell part and the first shell part slide relative to each other, the adjustment slider slides along an arc path relative to the second shell part. The adjustment slider is fixed with an adjustment protrusion, and the second shell part is provided with a plurality of adjustment grooves, and each of the adjustment grooves is evenly distributed along the edge line of the second shell part. The adjustment protrusion is passed through and snap-fitted into any adjustment groove.

[0009] By adopting the above technical solution, when the curvature of the curved display screen needs to be adjusted, the two second shell parts slide along the curved trajectory relative to the two first shell parts respectively, so that the two adjusting sliders slide along the curved trajectory relative to the two second shell parts respectively, so that the adjusting protrusion disengages from an adjusting groove that is engaged and follows the sliding trajectory of the adjusting slider to continuously engage with the adjusting grooves on the sliding trajectory path in sequence until the curvature of the curved display screen is fully adjusted. The adjusting groove and the adjusting grooves on the sliding trajectory path are engaged in sequence, so that the sliding distance between the second shell part and the first shell part is always equal to an integer multiple of a set distance, so that the curvature change of the curved display screen always remains an integer multiple of the set curvature change, so that the curvature of the curved display screen is easier to accurately adjust, thereby improving the problem that although the purpose of adjusting the curvature of the display screen is achieved, the sliding distance of the first splicing body and the second splicing body is difficult to grasp during the sliding process, which makes it difficult to accurately adjust the curvature of the display screen.

[0010] Optionally, the two sides of the adjusting protrusion are arc-shaped, and the groove body of each adjusting groove is semi-cylindrical.

[0011] Optionally, the adjustment assembly also includes an arc-shaped rack and an adjustment gear, the arc-shaped rack is fixedly arranged on the second shell part, the adjustment gear is rotatably arranged on the first shell part and is coaxially fixed with the drive rod, the adjustment gear is engaged with the arc-shaped rack, and the adjustment protrusion slides along the length direction of the drive rod to cooperate with the drive rod.

[0012] Optionally, the adjustment assembly further includes a first adjustment spring, which is located between the adjustment slider and the first housing portion, one end of the first adjustment spring is fixedly connected to the adjustment slider, and the other end of the first adjustment spring is fixedly connected to the first housing portion.

[0013] By adopting the above technical solution, the setting of the first adjusting spring ensures that the abutment between the adjusting slider and the second shell part always remains stable, so that when the adjusting protrusion is disengaged from the snap fit with one adjusting groove, the adjusting protrusion can quickly pass through and snap fit with another adjusting groove, thereby achieving better use effect and better usability.

[0014] Optionally, the adjustment assembly also includes an adjustment ball and a second adjustment spring, the adjustment ball slidingly engaged with the first housing part, one end of the second adjustment spring fixedly connected to the adjustment ball, and the other end of the second adjustment spring fixedly connected to the first housing part, and the second housing part is provided with a plurality of adjustment grooves on one side close to the first housing part, and each adjustment groove is evenly distributed along the edge line of the second housing part. When the second housing part slides with the first housing part, the adjustment protrusion moves from one adjustment groove to another adjustment groove and engages with the adjustment groove, and at the same time, the adjustment ball moves from one adjustment groove to another adjustment groove and engages with the adjustment groove.

[0015] By adopting the above technical solution, when the second shell part slides relative to the first shell part, the adjustment protrusion moves from one adjustment groove to another adjustment groove and engages with the adjustment groove. At the same time, the adjustment ball moves from one adjustment groove to another adjustment groove and engages with the adjustment groove, thereby further amplifying the effect of making the curvature of the curved display screen easier and more precise to adjust, making it more usable.

[0016] Optionally, a locking assembly is further included. When the locking assembly is locked, the adjusting slider is tightly fixed to the second shell part, and the adjusting protrusion is clamped and fixed to an adjusting groove.

[0017] By adopting the above technical solution, the adjusting protrusion and the adjusting groove are snap-fitted together, so that when the locking assembly is locked, the adjusting slider is tightly fixed to the second shell part for further stabilization, so that when the locking assembly is locked, the relative position stability between the first shell part and the second shell part is better, making it more usable.

[0018] Optionally, a stabilizing platform is fixedly provided on one side of the first shell part, and a stabilizing hole is provided through the stabilizing platform, and a stabilizing rod is provided in the stabilizing hole. A stabilizing groove is provided on one side of the second shell part, and the stabilizing rod passes through and slides into the stabilizing groove, and the stabilizing rod abuts the stabilizing groove body between the stabilizing rod and the stabilizing platform.

[0019] Optionally, the stabilizing rod is passed through and slidably engaged in the stabilizing hole, the stabilizing rod is provided with a fixing groove, and the stabilizing platform is provided with a fixing hole. When the stabilizing rod is passed through the stabilizing hole, the fixing hole is connected to the fixing groove, and the fixing hole is threadedly connected with a fixing screw. When the stabilizing rod is fixedly set in the stabilizing hole, the fixing screw is passed through and snap-fitted into the fixing groove.

[0020] Optionally, the outer peripheral surface of the driving rod is engraved with anti-slip grooves.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] 1. When the curvature of the curved display screen needs to be adjusted, the two second housing parts slide along the arc track relative to the two first housing parts respectively, so that the two adjusting sliders slide along the arc track relative to the two second housing parts respectively, so that the adjusting protrusion disengages from an adjusting groove with which it is engaged and follows the sliding track of the adjusting slider to continuously engage with the adjusting grooves on the sliding track path in sequence until the curvature of the curved display screen is adjusted. The adjusting groove and the adjusting grooves on the sliding track path engage with each other in sequence, so that the sliding distance between the second housing part and the first housing part is always equal to an integer multiple of a certain set distance, so that the curvature change of the curved display screen always remains an integer multiple of the set curvature change, thereby making it easier to accurately adjust the curvature of the curved display screen, thereby improving the problem that although the purpose of adjusting the curvature of the display screen is achieved, the sliding distance of the first splicing body and the second splicing body is difficult to grasp during the sliding process, which makes it difficult to accurately adjust the curvature of the display screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present application;

[0024] Figure 2 This is an exploded view of the adjustment component of an embodiment of the present application;

[0025] Figure 3 This is an exploded view of the driving rod of an embodiment of the present application;

[0026] Figure 4 This is a schematic diagram of the structure of the adjustment component of the embodiment of the present application Figure 1 ;

[0027] Figure 5 This is a schematic diagram of the structure of the adjusting slider in an embodiment of the present application;

[0028] Figure 6 This is a schematic diagram of the structure of the adjustment component of the embodiment of the present application Figure 2 ;

[0029] Figure 7 is a cross-sectional view of an adjustment assembly according to an embodiment of the present application;

[0030] Figure 8 This is a schematic diagram of the structure of the adjustment component of the embodiment of the present application Figure 3 ;

[0031] Figure 9 This is a schematic diagram of the adjustment scale of the embodiment of the present application;

[0032] Figure 10 This is an exploded view of the locking assembly of an embodiment of the present application;

[0033] Figure 11 This is a schematic diagram of the structure of the stabilization platform according to an embodiment of the present application;

[0034] Figure 12 yes Figure 11 A magnified view of part A;

[0035] Figure 13 This is a schematic diagram of the installation of the adjustment mechanism of the embodiment of the present application.

[0036] Explanation of reference numerals: 1. driving rod; 11. main body; 111. anti-slip groove; 112. rotating hole; 1121. rotating protrusion; 12. first rod body; 121. first rotating groove; 122. driving groove; 13. second rod body; 131. second rotating groove; 2. adjusting housing; 21. first housing; 211. guide block; 212. scale pointer; 213. stabilizing platform; 2131. stabilizing hole; 2132. stabilizing rod; 21321. fixing groove; 2133. fixing hole; 21331. fixing screw; 22. second housing ; 221. Guide groove; 222. Adjustment groove; 223. Adjustment groove; 224. Adjustment scale; 225. Stabilization groove; 3. Adjustment assembly; 31. Adjustment slider; 311. Slider part; 3111. Adjustment protrusion; 312. Sliding part; 32. First adjustment spring; 33. Arc-shaped rack; 34. Adjustment gear; 35. Adjustment ball; 36. Second adjustment spring; 4. Locking assembly; 41. Connecting sleeve; 411. Connecting hole; 412. Limiting groove; 42. Drive sleeve; 421. Drive protrusion; 50. Adjustment mechanism; 60. Arc-shaped display screen. DETAILED DESCRIPTION

[0037] The following is combined with Figure 1-12 This application is described in further detail.

[0038] The embodiment of the present application discloses a new type of radian adjustment mechanism. Figure 1 and Figure 2 A new curvature adjustment mechanism includes a driving rod 1, two groups of adjustment shells 2, two groups of adjustment components 3 and a locking component 4. The two adjustment shells 2 are respectively arranged at both ends of the driving rod 1, the two groups of adjustment components 3 are respectively arranged at the two adjustment shells 2, and the locking component 4 is arranged at one end of the driving rod 1.

[0039] Reference Figure 3The driving rod 1 includes a main body 11, a first rod body 12 and a second rod body 13. The main body 11 is cylindrical, and the outer circumference of the main body 11 is engraved with anti-slip grooves 111. The first rod body 12 and the second rod body 13 are respectively slidably fitted at both ends of the main body 11. The first rod body 12 is provided with a first rotation groove 121 at one end close to the main body 11, and the second rod body 13 is provided with a second rotation groove 131 at one end close to the main body 11. The main body 11 is provided with a plurality of rotation holes 112 which are penetrated, and each rotation hole 112 is threadedly connected with a rotation protrusion 11. 21, each rotating protrusion 1121 is respectively provided in the first rotating groove 121 and the second rotating groove 131 and respectively abuts against the bottom of the first rotating groove 121 and the second rotating groove 131, so that when the driving rod 1 drives each rotating protrusion 1121 to rotate, the first rod body portion 12 and the second rod body portion 13 rotate accordingly, and the width of the first rotating groove 121 is larger than the diameter of the rotating protrusion 1121, so that when the first rod body portion 12 slides toward or away from the main body portion 11, it is not easy to drive the main body portion 11 to slide in the sliding direction of the first rod body portion 12.

[0040] Reference Figure 1 and Figure 2 The two adjustment housings 2 each include a first housing portion 21 and a second housing portion 22. The first housing portion 21 and the second housing portion 22 are both arc-shaped. The two first housing portions 21 are respectively arranged on the side close to the driving rod 1. One first housing portion 21 is rotatably connected to the first rod body portion 12, and the other first housing portion 21 is rotatably connected to the second rod body portion 13. The two second housing portions 22 are both arranged on the side away from the driving rod 1. The two first housing portions 21 are respectively fitted with the two second housing portions 22 in an arc-shaped sliding manner.

[0041] Reference Figure 2 and Figure 4 The two first shell parts 21 are respectively fixedly connected with a guide block 211 on one side close to the two second shell parts 22. The two second shell parts 22 are provided with a guide groove 221 with an arc-shaped groove body. The two guide blocks 211 are respectively penetrated and slidably fitted in the two guide grooves 221. The two guide blocks 211 are fixedly connected with abutment blocks by screws. The two guide grooves 221 are provided with abutment grooves. When the two guide blocks 211 are respectively penetrated and slidably fitted in the two guide grooves 221, the two abutment blocks are respectively penetrated in the two abutment grooves and abut with the two abutment grooves respectively, thereby making the sliding fit stability between the first shell part 21 and the second shell part 22 better.

[0042] Reference Figure 4 and Figure 5, the two adjustment components 3 include an adjustment slider 31, the adjustment slider 31 includes a slider portion 311 and a sliding portion 312, the slider portion 311 and the sliding portion 312 are fixedly connected, the slider portion 311 is rectangular, the slider portion 311 slides in the horizontal direction to fit in the second housing portion 22, and the sliding trajectory of the slider portion 311 is arc-shaped, the sliding portion 312 slides in the length direction of the driving rod 1 to fit in the first housing portion 21, the two adjustment sliders 31 are both hollow, the first rod body portion 12 and the second rod body portion 13 are respectively penetrated and rotatably engaged with the two adjustment sliders 31, an adjustment protrusion 3111 is fixedly provided on the side of the slider portion 311 close to the second housing portion 22, and a plurality of adjustment grooves 222 are opened on the side of the second housing portion 22 close to the slider portion 311. The adjustment grooves 222 are evenly distributed along the edge of the second housing portion 22, and the adjustment protrusion 3111 is penetrated and snap-fitted into any adjustment groove 222. The two sides of the adjustment protrusion 3111 are arc-shaped, and the groove body of each adjustment groove 222 is semi-cylindrical.

[0043] Reference Figure 2 and Figure 4 The adjustment assembly 3 also includes a first adjustment spring 32, which is located between the adjustment slider 31 and the first housing portion 21. One end of the first adjustment spring 32 is fixedly connected to the adjustment slider 31, and the other end of the first adjustment spring 32 is fixedly connected to the first housing portion 21, so that the abutment between the adjustment slider 31 and the second housing portion 22 always remains stable, so that when the adjustment protrusion 3111 is disengaged from the snap fit with one adjustment groove 222, the adjustment protrusion 3111 is quickly passed through and snap fit with the other adjustment groove 222, thereby achieving better use effect.

[0044] Reference Figure 2 and Figure 6 Both adjustment assemblies 3 further include an arcuate rack 33 and an adjusting gear 34. The two arcuate racks 33 are coaxially fixed to the two second housing portions 22, and the two adjusting gears 34 are rotatably provided on the two first housing portions 21. The two adjusting gears 34 are respectively engaged with the two arcuate racks 33. One adjusting gear 34 close to the first rod portion 12 is coaxially fixed to the first rod portion 12, and the other adjusting gear 34 close to the second rod portion 13 is coaxially fixed to the second rod portion 13, so that when the first rod portion 12 slides toward or away from the main body portion 11, one adjusting gear 34 moves in the sliding direction of the first rod portion 12. When the adjusting gear 34 moves toward the second housing portion 22, the adjusting gear 34 presses the adjusting slider 31 against the second housing portion 22 and fixes it.

[0045] Reference Figure 7 and Figure 8The adjusting assembly 3 also includes an adjusting ball 35 and a second adjusting spring 36. The adjusting ball 35 slides and fits in the first housing portion 21. One end of the second adjusting spring 36 is fixedly connected to the adjusting ball 35, and the other end of the second adjusting spring 36 is fixedly connected to the first housing portion 21. The second housing portion 22 is provided with a plurality of adjusting grooves 223 on one side close to the first housing portion 21. The adjusting grooves 223 are evenly distributed along the edge of the second housing portion 22. When the second housing portion 22 slides and fits with the first housing portion 21, the adjusting protrusion 3111 moves from one adjusting groove 222 to another adjusting groove 222 and engages with the adjusting groove 222, and at the same time, the adjusting ball 35 moves from one adjusting groove 223 to another adjusting groove 223 and engages with the adjusting groove 223.

[0046] When the second shell portion 22 slides relative to the first shell portion 21, the adjusting protrusion 3111 moves from one adjusting groove 222 to another adjusting groove 222 and engages with the adjusting groove 222. At the same time, the adjusting ball 35 moves from one adjusting groove 223 to another adjusting groove 223 and engages with the adjusting groove 223, thereby further amplifying the effect of making it easier to accurately adjust the curvature of the curved display screen.

[0047] Reference Figure 9 Both first housing parts 21 are engraved with scale pointers 212, and the position of the scale pointers 212 is set opposite to the position of the adjustment ball 35. Both second housing parts 22 are engraved with adjustment scales 224, and the values ​​of the adjustment scales 224 correspond one-to-one to the positions of each adjustment slot 223. The value of the adjustment scale 224 pointed to by the scale pointer 212 is the curvature value of the curved screen, so that when the second housing part 22 and the first housing part 21 slide relative to each other to adjust the curvature of the display screen, the adjusting ball 35 moves from one adjustment slot 223 to another adjustment slot 223 and engages with the adjustment slot 223, thereby completing the adjustment of the set curvature, thereby further improving the fineness of the curvature adjustment of the display screen.

[0048] Reference Figure 10 The locking assembly 4 includes a connecting sleeve 41 and a driving sleeve 42. The connecting sleeve 41 is fixedly arranged on a side of the first shell portion 21 close to the first rod body portion 12. A connecting hole 411 is provided in the middle position of the connecting sleeve 41. The first rod body portion 12 passes through and rotates to fit in the connecting hole 411. The driving sleeve 42 passes through the connecting sleeve 41 and is threadedly connected to the connecting sleeve 41. When the driving sleeve 42 rotates relative to the connecting sleeve 41, the driving sleeve 42 moves toward or away from the adjusting shell 2.

[0049] Reference Figure 10The first rod body 12 is provided with a driving groove 122 with a circular ring-shaped groove body, and the driving sleeve 42 is threadedly connected with two driving protrusions 421. The two driving protrusions 421 are arranged opposite each other, and the driving protrusions 421 are penetrated into the driving groove 122 and abutted against the groove body of the driving groove 122. When the driving sleeve 42 moves relative to the adjustment shell 2, the driving protrusion 421 drives the first rod body 12 to move through the driving groove 122. The outer circumferential surface of the connecting sleeve 41 is provided with two limiting grooves 412 that are penetrated through. The connecting hole 411 and the two limiting grooves 412 are both connected, and the driving groove 122 is connected to the two limiting grooves 412. The two driving protrusions 421 are respectively penetrated into the two limiting grooves 412 and slideably cooperate with the driving groove 122. When the driving sleeve 42 rotates to the set position, the two driving protrusions 421 respectively abut against the groove bodies of the two limiting grooves 412.

[0050] As a result, when the driving sleeve 42 rotates away from the adjustment housing 2, the first rod body portion 12 slides toward the main body portion 11, thereby causing the adjustment gear 34 to move toward the second housing portion 22 until the adjustment gear 34 abuts against the adjustment slider 31, thereby pressing the adjustment slider 31 and the second housing portion 22 tightly and fixing them, so that the adjustment protrusion 3111 is engaged and fixed with the adjustment groove 222, thereby fixing the first housing portion 21 and the second housing portion 22 relative to each other, thereby completing the locking of the positions of the first housing portion 21 and the second housing portion 22.

[0051] Reference Figure 11 and Figure 12 A stabilizing platform 213 is fixedly provided on one side of the first shell part 21 connected to the first rod body part 12. The stabilizing platform 213 is provided with a stabilizing hole 2131 which is penetrated by the stabilizing platform 213. A stabilizing rod 2132 is slidably fitted in the stabilizing hole 2131. A stabilizing groove 225 is provided on one side of the second shell part 22. The stabilizing rod 2132 passes through and slidably fits in the stabilizing groove 225. The stabilizing rod 2132 abuts the groove body of the stabilizing groove 225 between the stabilizing rod 2132 and the stabilizing platform 213. The stabilizing rod 2132 is provided with a fixing groove 21321. The stabilizing platform 213 is provided with a fixing hole 2133. When the stabilizing rod 2132 passes through the stabilizing hole 2131, the fixing hole 2133 is communicated with the fixing groove 21321. A fixing screw 21331 is threadedly connected to the fixing hole 2133. When the stabilizing rod 2132 is fixedly provided in the stabilizing hole 2131, the fixing screw 21331 passes through and snaps into fit with the fixing groove 21321.

[0052] The implementation principle of a novel curvature adjustment mechanism of the embodiment of the present application is as follows: when the curvature of the curved display screen needs to be adjusted, the two second housing parts 22 slide along the arc track relative to the two first housing parts 21, so that the two adjustment sliders 31 slide along the arc track relative to the two second housing parts 22, so that the adjustment protrusion 3111 disengages from an adjustment groove 222 with which it is engaged and follows the sliding track of the adjustment slider 31 to continuously engage with each adjustment groove 222 on the sliding track path in sequence until the curvature of the curved display screen is adjusted. The adjusting grooves 222 on the sliding track path are engaged in sequence, so that the sliding distance between the second shell part 22 and the first shell part 21 is always equal to an integer multiple of a certain set distance, so that the curvature change of the curved display screen is always maintained at an integer multiple of the set curvature change, so that the curvature of the curved display screen is easier to adjust accurately, improving the problem that although the purpose of adjusting the curvature of the display screen is achieved, the sliding distance of the first splicing body and the second splicing body is difficult to grasp during the sliding process, which makes it difficult to accurately adjust the curvature of the display screen.

[0053] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A new type of arc adjustment mechanism, characterized by: The invention comprises a driving rod (1), two groups of adjusting housings (2), two groups of adjusting components (3) and a locking component (4); the two adjusting housings (2) are respectively arranged at both ends of the driving rod (1); the two adjusting housings (2) each comprise a first housing portion (21) and a second housing portion (22); the first housing portion (21) and the second housing portion (22) are slidably matched, and the two first housing portions (21) are respectively connected to both ends of the driving rod (1); The two adjustment components (3) are respectively arranged on the two adjustment housings (2). The adjustment components (3) include an adjustment slider (31). The adjustment slider (31) is slidably matched with the second housing part (22). The sliding trajectory of the adjustment slider (31) is arc-shaped. When the second housing part (22) and the first housing part (21) slide relative to each other, the adjustment slider (31) slides along the arc path relative to the second housing part (22). The adjustment slider (31) is fixedly provided with an adjustment protrusion (3111). The second housing part (22) is provided with a plurality of adjustment grooves (222). Each of the adjustment grooves (222) is evenly distributed along the edge of the second housing part (22). The adjustment protrusion (3111) is passed through and snap-fitted into any adjustment groove (222).

2. A novel arc adjustment mechanism according to claim 1, characterized in that: The two sides of the adjusting protrusion (3111) are in arc shape, and the groove body of each adjusting groove (222) is in semi-cylindrical shape.

3. A novel arc adjustment mechanism according to claim 1, characterized in that: The adjustment assembly (3) further comprises an arc-shaped rack (33) and an adjustment gear (34); the arc-shaped rack (33) is fixedly arranged on the second housing portion (22); the adjustment gear (34) is rotatably arranged on the first housing portion (21) and coaxially fixed with the driving rod (1); the adjustment gear (34) is meshed with the arc-shaped rack (33); and the adjustment protrusion (3111) is slidably engaged with the driving rod (1) along the length direction of the driving rod (1).

4. A novel arc adjustment mechanism according to claim 3, characterized in that: The adjustment assembly (3) further comprises a first adjustment spring (32), the first adjustment spring (32) being located between the adjustment slider (31) and the first housing portion (21), one end of the first adjustment spring (32) being fixedly connected to the adjustment slider (31), and the other end of the first adjustment spring (32) being fixedly connected to the first housing portion (21).

5. The novel arc adjustment mechanism according to claim 1, characterized in that: The adjustment assembly (3) further comprises an adjustment ball (35) and a second adjustment spring (36), wherein the adjustment ball (35) is slidably engaged with the first housing portion (21), one end of the second adjustment spring (36) is fixedly connected to the adjustment ball (35), and the other end of the second adjustment spring (36) is fixedly connected to the first housing portion (21), and a plurality of adjustment grooves (223) are provided on a side of the second housing portion (22) close to the first housing portion (21), and each of the adjustment grooves (223) is evenly distributed along the edge of the second housing portion (22), and when the second housing portion (22) is slidably engaged with the first housing portion (21), the adjustment protrusion (3111) moves from one adjustment groove (222) to another adjustment groove (222) and engages with the adjustment groove (222), and at the same time, the adjustment ball (35) moves from one adjustment groove (223) to another adjustment groove (223) and engages with the adjustment groove (223).

6. The novel arc adjustment mechanism according to claim 1, characterized in that: It also includes a locking assembly (4). When the locking assembly (4) is locked, the adjusting slider (31) is tightly fixed to the second housing portion (22), and the adjusting protrusion (3111) is clamped and fixed to an adjusting groove (222).

7. The novel arc adjustment mechanism according to claim 1, characterized in that: A stabilizing platform (213) is fixedly provided on one side of the first shell part (21), and a stabilizing hole (2131) is provided through the stabilizing platform (213), and a stabilizing rod (2132) is provided in the stabilizing hole (2131). A stabilizing groove (225) is provided on one side of the second shell part (22), and the stabilizing rod (2132) is passed through and slidably engaged with the stabilizing groove (225), and the stabilizing rod (2132) abuts the groove body of the stabilizing groove (225) between the stabilizing rod (2132) and the stabilizing platform (213).

8. The novel arc adjustment mechanism according to claim 7, characterized in that: The stabilizing rod (2132) is passed through and slidably engaged with the stabilizing hole (2131); the stabilizing rod (2132) is provided with a fixing groove (21321); the stabilizing platform (213) is provided with a fixing hole (2133); when the stabilizing rod (2132) is passed through the stabilizing hole (2131), the fixing hole (2133) is communicated with the fixing groove (21321); the fixing hole (2133) is threadedly connected with a fixing screw (21331); when the stabilizing rod (2132) is fixedly arranged in the stabilizing hole (2131), the fixing screw (21331) is passed through and snap-fitted with the fixing groove (21321).

9. The novel arc adjustment mechanism according to claim 1, characterized in that: The outer peripheral surface of the driving rod (1) is engraved with anti-slip grooves (111).

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