Surrounding type sinker cap

Abstract

The utility model belongs to the technical field of hosiery machines, and particularly relates to a surrounding type sinker cap which solves the problems that the overall structural strength of eyebrows in a split type is not high, and disassembly and assembly are inconvenient. The surrounding type sinker cap comprises an annular supporting base plate, an annular middle eyebrow is detachably arranged on the supporting base plate, the middle eyebrow is of an integrated structure, an outer eyebrow is arranged on the radial outer side of the middle eyebrow, and the outer eyebrow is connected with a rotary type in-out driving structure and can move in the radial direction. The integrated middle eyebrow achieves higher overall structural strength and is also convenient to disassemble and assemble.

Description

TECHNICAL FIELD

[0001] The utility model belongs to hosiery technical field, especially relate to a surrounding type knickerbocker glory cover. BACKGROUND

[0002] In hosiery (circular knitting machine of knitting socks), knickerbocker glory cover is one of key loop forming mechanism parts, and each eyebrow on the disc body can cooperate with knickerbocker glory piece, realizes the control to knickerbocker glory piece movement track, and then reaches the effect of knitting fabric knitting.

[0003] However, in the prior art, most of the middle eyebrows on the knickerbocker glory cover are split type, that is, a plurality of middle eyebrows are fixedly installed in the corresponding position in split type, for controlling the in-out action of the knickerbocker glory piece at the corresponding angle, the split type design increases the disassembly complexity on the one hand, and also is difficult to guarantee the overall structural strength and installation stability of the middle eyebrow. UTILITY MODEL CONTENTS

[0004] The utility model aims at the above-mentioned problems existing in the prior art and provides a surrounding type knickerbocker glory cover.

[0005] In order to realize the purpose of the utility model, the following technical solutions can be used:

[0006] A surrounding type knickerbocker glory cover, comprising a support base disc, a middle eyebrow in the form of a ring is detachably arranged on the support base disc, the middle eyebrow is in an integral structure, an outer eyebrow is arranged on the radial outer side of the middle eyebrow, the outer eyebrow is connected with a rotary in-out driving structure and can move radially.

[0007] The knickerbocker glory cover of the utility model is provided with the middle eyebrow and the outer eyebrow on the support base disc, the middle eyebrow is integrally formed, has higher structural strength compared with the scheme of a plurality of spliced blocks, and is convenient for disassembly and assembly operation, the outer eyebrow is composed of a plurality of arc-shaped parts and is distributed on the outer side of the middle eyebrow, the rotary in-out driving structure is used for controlling the radial in-out movement of the outer eyebrow, the radial driving of the outer eyebrow is realized through the rotating action of the components such as the rotating disc, so that one set of driving structure can drive a plurality of outer eyebrows at the same time, and the cost of the driver is reduced.

[0008] In the above-mentioned surrounding type knickerbocker glory cover, the middle eyebrow is provided with a notch, the outer eyebrow is provided with at least three groups, and the end part of the middle eyebrow is provided with a guide inclined surface on the inner side, the outer side and the top surface.

[0009] The middle eyebrow is provided with a notch for facilitating the disassembly and assembly of the check piece. The two sides of the notch are the end portions of the middle eyebrow. The end portions are provided with guide inclined surfaces on the inner side surface, the outer side surface and the top surface. The guide inclined surfaces ensure that the check piece can smoothly pass through the notch when sliding on the middle eyebrow. The outer eyebrow is provided with three groups. One group is located on the radial outer side of the notch. The other two groups are distributed on the two sides. Of course, the outer eyebrow on the outer side of the notch is provided with a corresponding inwardly recessed inner side contact surface, which can ensure that the check piece smoothly passes through the notch. The outer eyebrow is symmetrical about a vertical plane passing through the notch, which also makes the weight distribution of the whole more uniform.

[0010] In the above-mentioned surrounding check cover, the rotating in-out driving structure comprises a rotating disc rotatably connected to the support base plate. The rotating disc is driven to rotate by a circumferential driver. The rotating disc is connected to the outer eyebrow through a transmission structure.

[0011] The rotating disc is arranged below the support base plate and can rotate circumferentially within a certain angle range. The circumferential driver is used to specifically provide rotating power. The transmission structure is used to realize the transmission from circumferential movement to radial movement between the rotating disc and the outer eyebrow.

[0012] In the above-mentioned surrounding check cover, the transmission structure comprises a fixed slot hole penetratingly arranged on the support base plate and extending in the radial direction, and a dynamic slot hole penetratingly arranged on the rotating disc and extending in the radial direction and the circumferential direction. The bottom of the outer eyebrow is connected to a transmission bolt. The rod body of the transmission bolt penetrates the dynamic slot hole and the fixed slot hole at the same time. A gasket is arranged between the bolt head and the rotating disc. The gasket is provided with a through hole allowing the rod body to pass through.

[0013] The front end of the transmission bolt is screwed on the threaded hole in the bottom of the outer eyebrow. The rod body penetrates the through hole, the dynamic slot hole and the fixed slot hole from bottom to top in sequence. Of course, the outer diameter of the rod body is adapted to the width of the dynamic slot hole and the fixed slot hole and the inner diameter of the through hole. The extension direction of the dynamic slot hole is further inclined on the basis of the circumferential direction, that is, the distance from the two ends to the axis of the rotating disc is different. The fixed slot hole extends in the radial direction. The fixed slot hole and the dynamic slot hole are arranged in an X shape. The gasket is used to pull up the rotating disc to realize the detachable fixing of the rotating disc and the bottom of the support base plate.

[0014] In the above-mentioned surrounding check cover, the rotating angle indicating structure is arranged between the support base plate and the rotating disc. The rotating angle indicating structure comprises at least one radial pointing indicating tip arranged on the support base plate. The rotating disc is provided with an indicating scale. The indicating tip points to the indicating scale.

[0015] The rotating angle indicating structure is used to indicate the rotating angle of the rotating disc, which is convenient for understanding the in-out position of the outer eyebrow. The corresponding indicating scale and indicating tip are arranged on the support base plate and the rotating disc respectively. The indicating scale is distributed along the circumferential direction. The indicating tip reciprocally moves circumferentially between the scales.

[0016] In the aforementioned enclosed Sink cover, an indicator plate is detachably fixed to the bottom surface of the supporting chassis. The indicator plate has an indicator tip on its radially outer side. The turntable includes a U-shaped indicator portion with its opening facing the axis. The indicator plate is located inside the U-shaped indicator portion, and the indicator scale is evenly distributed on the arc segment of the U-shaped indicator portion.

[0017] The indicator plate is generally rectangular in shape, with its length running radially outward. It has a radially protruding indicator tip at its outer end. The indicator plate is bolted to the supporting chassis, allowing for flexible disassembly. To make way for the indicator plate, a corresponding position on the turntable protrudes outward, forming a U-shaped indicator section. The indicator scale is located on this U-shaped section, ensuring the intended indicating effect. Furthermore, a cap-shaped pad is positioned corresponding to the U-shaped indicator section. This pad has through holes on both sides, and the indicator plate is also located within the middle U-shaped section, reducing the possibility of the indicator plate being impacted.

[0018] In the aforementioned enclosed Sink cover, the turntable has transmission teeth evenly distributed circumferentially on its radial outer side, and a transmission gear that meshes with the transmission teeth is rotatably connected to the supporting chassis. The output shaft of the circumferential driver is connected to the transmission gear through the drive gear.

[0019] The outer side of the turntable is equipped with transmission teeth, which are connected to the circumferential driver through transmission gears and drive gears to achieve the transmission effect.

[0020] In the aforementioned enclosed Sink cover, a driver mounting part is provided on the radially outer side of the supporting chassis. The circumferential driver is fixed on the driver mounting part. A protective cover is provided below the driver mounting part. The transmission gear, drive gear, and part of the transmission gear are covered inside the protective cover.

[0021] The driver mounting part protrudes radially outward for mounting a circumferential driver. The cover of the protective cover includes the transmission gear, the drive gear, and the area below where the transmission gear and the drive gear mesh. The transmission gear is rotatably connected to the bottom surface of the driver mounting part by a circular mounting part with a convex cross-section. The protective cover has a circular groove that matches the outer diameter of the mounting part. The circular groove of the protective cover is aligned with the mounting part and is fixed to the bottom of the driver mounting part by bolts.

[0022] In the aforementioned enclosed sinek cover, the supporting base is also provided with several sets of small eyebrows, the medium eyebrows are provided with radially penetrating clearance openings, the small eyebrows can pass through the clearance openings, and a linear in-and-out drive structure is provided between the small eyebrows and the supporting base.

[0023] The position setting hole is arranged at the bottom of the middle eyebrow and penetrates radially, and is used for the in-out position setting of the small eyebrow, and the linear in-out driving structure is used for providing driving force for the in-out movement of the small eyebrow, and has high transmission efficiency.

[0024] In the above-mentioned surrounding Born cover, the linear in-out driving structure comprises a small eyebrow mounting plate arranged on the bottom surface of the support base plate, the small eyebrow mounting plate comprises a guide driving plate arranged at the bottom, the guide driving plate slides in the radial sliding groove on the small eyebrow mounting plate, and the outer end is connected with the linear driver;

[0025] The bottom of the radial sliding groove and the guide driving plate are respectively provided with a positioning convex body and a strip-shaped limiting hole, the positioning convex body slides in the strip-shaped limiting hole, and the length direction of the strip-shaped limiting hole is adapted to the length direction of the radial sliding groove.

[0026] The guide driving plate is limited in the radial sliding groove of the small eyebrow mounting plate and cannot rotate circumferentially, the linear driver directly drives the in-out movement of the guide driving plate to realize the movement effect of the small eyebrow on the guide driving plate, in order to limit the range of the in-out path, the positioning convex body and the strip-shaped limiting hole are arranged on the radial sliding groove and the guide driving plate, the width or outer diameter of the positioning convex body is adapted to the width of the strip-shaped limiting hole, the positioning convex body slides in the strip-shaped limiting hole, and the range of the in-out movement path of the small eyebrow is limited.

[0027] Compared with the prior art, the utility model mainly has the following advantages:

[0028] 1. The Born cover is arranged with a middle eyebrow and an outer eyebrow on the support base plate, the middle eyebrow is integrally formed and has higher structural strength, and is convenient for dismounting operation, the rotary in-out driving structure is used for controlling the radial in-out movement of the outer eyebrow, and the radial driving of the outer eyebrow is realized through the rotating action of the rotating disc part, so that one set of driving structure can drive multiple outer eyebrows at the same time, and the cost of the driver is reduced.

[0029] 2. The middle eyebrow is arranged with a notch, the dismounting of the Born piece is facilitated, the end portion of the middle eyebrow is arranged on the inner side, the outer side and the top surface on the both sides of the notch position, the guide inclined surface is arranged on the end portion, and when the Born piece slides on the middle eyebrow, the Born piece can smoothly pass through the notch.

[0030] 3. The rotating angle indicating structure is used for indicating the rotating angle of the rotating disc, and the in-out position of the outer eyebrow is convenient to understand.

[0031] 4. The indicating plate is in the shape of a rectangle, the length direction is radial, and the outer end is provided with a radial outwardly protruding indicating tip, the indicating plate is fixed by bolts with the supporting base plate, and has flexible detachability, in order to give way to the position of the indicating plate, the corresponding position of the rotating disc is outwardly protruding, a U-shaped indicating part is formed, and the indicating scale is arranged on the U-shaped indicating part, so that the predetermined indicating effect is ensured.

[0032] 5. The driver mounting portion is radially outwardly protruding, and is used for mounting the circumferential driver, and the cover of the protective cover includes the transmission gear, the driving gear and the position below the transmission gear and the transmission gear. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 is the overall structure schematic view of the upper visual angle provided by the utility model;

[0034] Figure 2 is the overall structure schematic view of the lower visual angle provided by the utility model;

[0035] Figure 3 is Figure 2 is the enlarged view of the detail of A in the middle eyebrow;

[0036] Figure 4 is the schematic view of the transmission structure and the rotating disc cooperation provided by the utility model;

[0037] Figure 5 is the bottom view schematic view of the disc body of the supporting base plate and the rotating disc cooperation provided by the utility model;

[0038] Figure 6 is the structure schematic view of the middle eyebrow provided by the utility model;

[0039] Figure 7 is the structure schematic view of the protective cover provided by the utility model;

[0040] Figure 8 is the schematic view of the small eyebrow and the small eyebrow mounting plate cooperation provided by the utility model.

[0041] In the figure, the supporting base plate 1, the middle eyebrow 2, the outer eyebrow 3, the rotating type in-out driving structure 4, the notch 5, the guide inclined surface 6, the rotating disc 7, the transmission structure 9, the fixed slot hole 10, the movable slot hole 11, the pad plate 13, the through hole 14, the rotating angle indicating structure 15, the indicating tip 16, the indicating scale 17, the indicating plate 18, the U-shaped indicating part 19, the transmission tooth 20, the transmission gear 21, the mounting piece 22, the driver mounting portion 23, the protective cover 24, the small eyebrow 25, the giving way opening 26, the straight line type in-out driving structure 27, the small eyebrow mounting plate 28, the guide driving plate 29, the radial sliding slot 30, the positioning convex body 31, the strip-shaped limiting hole 32. DETAILED DESCRIPTION

[0042] The utility model discloses a specific embodiment as follows and further describes the technical scheme of the utility model in connection with the drawings, but the utility model is not limited to these embodiments.

[0043] The specific embodiment is as shown in the figure. Figures 1-8 As shown in the figure, the surrounding born cover includes annular support base plate 1, and annular middle eyebrow 2 is detachably arranged on the support base plate 1, the middle eyebrow 2 is an integral structure, the radially outer side of the middle eyebrow 2 is provided with outer eyebrow 3, the outer eyebrow 3 is connected with rotary access driving structure 4, and can be radially moved.

[0044] Specifically, the born cover is provided with middle eyebrow 2 and outer eyebrow 3 on the support base plate 1, wherein the middle eyebrow 2 is integrally formed and has higher structural strength, and is also convenient for dismounting operation, the outer eyebrow 3 is composed of three arc-shaped parts and is distributed on the outer side of the middle eyebrow 2, the rotary access driving structure 4 is used for controlling the radial access movement of the outer eyebrow 3, and the radial driving of the outer eyebrow 3 is realized through the component rotating action of, for example, rotating disc 7, so that a set of driving structure can drive multiple outer eyebrows 3 simultaneously, and the cost of the driver is reduced.

[0045] In the embodiment, the middle eyebrow 2 is provided with notch 5, and the outer eyebrow 3 is provided with three groups. The notch 5 is convenient for dismounting the born piece, the end of the middle eyebrow 2 is provided with guide inclined surface 6 on the inner side, the outer side and the top, so that the born piece can smoothly pass through the notch 5 when sliding on the middle eyebrow 2, the outer eyebrow 3 is provided with three groups, one group is located on the radially outer side of the notch 5, and the other two groups are distributed on the two sides, and the outer eyebrow 3 on the outer side of the notch 5 is provided with the corresponding outward recessed inner side contact surface, so that the born piece can smoothly pass through the notch 5.

[0046] As shown in the figure, the rotary access driving structure 4 includes rotating disc 7 which is rotatably connected to the support base plate 1, the rotating disc 7 is driven to rotate by the circumferential driver, and the rotating disc 7 is connected with the outer eyebrow 3 through transmission structure 9. Figure 2 、 4 、5, the transmission structure 9 includes fixed slot hole 10 which is through and arranged on the support base plate 1 and extends along the radial direction, and dynamic slot hole 11 which is through and arranged on the rotating disc 7 and extends in the radial direction and the circumferential direction, the outer eyebrow 3 is connected with transmission bolt, the rod body of the transmission bolt is simultaneously through the dynamic slot hole 11 and the fixed slot hole 10, and the bolt head is provided with pad 13 between the rotating disc 7, and the pad 13 is provided with through hole 14 which allows the rod body to pass through.

[0047] Specifically, the rotating disc 7 is arranged below the supporting base 1 and can rotate in a certain angle range, and a circumferential driver is arranged to provide rotating power, and the rotating disc 7 and the outer eyebrow 3 are connected through the transmission structure 9 to realize the transmission from the circumferential movement to the radial movement. The front end of the transmission bolt is screwed on the threaded hole at the bottom of the outer eyebrow 3, the rod body of the transmission bolt passes through the through hole 14, the moving slot hole 11 and the fixed slot hole 10 from bottom to top, of course, the outer diameter of the rod body is adapted to the width of the moving slot hole 11 and the fixed slot hole 10 and the inner diameter of the through hole 14, the extension direction of the moving slot hole 11 is further inclined on the basis of the circumferential direction, that is, the distance from the two ends to the axis of the rotating disc 7 is different, and the fixed slot hole 10 extends radially, that is, the fixed slot hole 10 and the moving slot hole 11 are arranged in an X shape, and the gasket 13 is arranged to pull up the rotating disc 7 to realize the detachable fixing of the rotating disc 7 and the bottom of the supporting base 1.

[0048] As shown in Figure 2 , 3 , the rotating angle indicating structure 15 is arranged between the supporting base 1 and the rotating disc 7, the rotating angle indicating structure 15 includes a radial indicating tip 16 arranged on the supporting base 1, the rotating disc 7 is provided with an indicating scale 17, and the indicating tip 16 points to the indicating scale 17. The indicating plate 18 is detachably fixed on the bottom surface of the supporting base 1, the radial outer side of the indicating plate 18 is provided with the indicating tip 16, the rotating disc 7 includes a U-shaped indicating part 19 with an opening facing the axis, the indicating plate 18 is located in the U-shaped indicating part 19, and the indicating scale 17 is uniformly distributed on the arc segment of the U-shaped indicating part 19.

[0049] Specifically, the rotating angle indicating structure 15 is used to indicate the rotating angle of the rotating disc 7, so as to facilitate the understanding of the in-out position of the outer eyebrow 3, the corresponding indicating scale 17 and indicating tip 16 are arranged on the supporting base 1 and the rotating disc 7 respectively, the indicating scale 17 is distributed along the circumferential direction, and the indicating tip 16 reciprocally moves in the circumferential direction between the scales. The indicating plate 18 is generally rectangular in shape, the length direction of the indicating plate 18 is radial, and the outer end of the indicating plate 18 is provided with the indicating tip 16 which protrudes radially outward, the indicating plate 18 is fixed with the supporting base 1 through bolts and has flexible detachability, in order to give way to the position of the indicating plate 18, the corresponding position of the rotating disc 7 protrudes outward to form the U-shaped indicating part 19, the indicating scale 17 is arranged on the U-shaped indicating part 19, and the indicating effect is ensured. Further, the gasket 13 at the corresponding position of the U-shaped indicating part 19 is hat-shaped, the two sides of the gasket 13 are provided with the through hole 14, the indicating plate 18 is also located in the middle U-shaped part, and the possibility of the indicating plate 18 being impacted can be reduced.

[0050] As shown in Figure 2 , 4As shown in Figures 5 and 7, the turntable 7 has evenly distributed transmission teeth 20 on its radially outer circumferential side. A transmission gear 21 that meshes with the transmission teeth 20 is rotatably connected to the support chassis 1. The output shaft of the circumferential driver is connected to the transmission gear 21 through a drive gear. A driver mounting part 23 is provided on the radially outer side of the support chassis 1. The circumferential driver is fixed on the driver mounting part 23. A protective cover 24 is provided below the driver mounting part 23. The transmission gear 21, the drive gear, and part of the transmission teeth 20 are covered inside the protective cover 24.

[0051] Specifically, the outer side of the turntable 7 is provided with transmission teeth 20, which are connected to the circumferential driver through transmission gear 21 and drive gear to achieve transmission effect. The driver mounting part 23 protrudes radially outward for mounting the circumferential driver. The cover area of ​​the protective cover 24 includes the transmission gear 21, the drive gear, and the area below the position where the transmission gear 21 mates with the transmission teeth 20. Moreover, the transmission gear 21 is rotatably screwed to the bottom surface of the driver mounting part 23 by a circular mounting part 22 with a convex cross-section. The protective cover 24 is provided with a circular groove that matches the outer diameter of the mounting part 22. The circular groove of the protective cover 24 is aligned with the mounting part 22 and is fixed to the bottom of the driver mounting plate by bolts.

[0052] In this embodiment, the support chassis 1 is also provided with two sets of small eyebrow hairs 25 symmetrically distributed on both sides of the notch 5. The middle eyebrow hair 2 is provided with a radially penetrating relief opening 26, through which the small eyebrow hairs 25 can pass. A linear in-and-out drive structure 27 is provided between the small eyebrow hairs 25 and the support chassis 1. The linear in-and-out drive structure 27 includes a small eyebrow hair mounting plate 28 provided on the bottom surface of the support chassis 1. The small eyebrow hairs 25 include a guide drive plate 29 located at the bottom. The guide drive plate 29 slides in a radial groove 30 on the small eyebrow hair mounting plate 28, and its outer end is connected to a linear actuator. A positioning protrusion 31 is provided at the bottom of the radial groove 30. A strip-shaped limiting hole 32 is provided on the guide drive plate 29. The positioning protrusion 31 slides in the strip-shaped limiting hole 32. The length direction of the strip-shaped limiting hole 32 is adapted to the length direction of the radial groove 30.

[0053] Specifically, the gap 26 is arranged at the bottom of the middle eyebrow 2 and penetrates radially for the in-and-out movement of the small eyebrow 25, and the linear in-and-out driving structure 27 is used to provide driving force for the in-and-out movement of the small eyebrow 25, and the transmission efficiency is high. The small eyebrow 25 is arranged on the plate surface of one end of the guide driving plate 29, the guide driving plate 29 is limited in the radial sliding groove 30 of the small eyebrow mounting plate 28 and can move radially but cannot rotate circumferentially, the linear driver directly drives the in-and-out movement of the guide driving plate 29 to realize the effect of controlling the movement of the small eyebrow 25 thereon. In order to limit the range of the in-and-out path, the positioning protrusion 31 and the strip-shaped limiting hole 32 are arranged on the radial sliding groove 30 and the guide driving plate 29, the width or outer diameter of the positioning protrusion 31 is adapted to the width of the strip-shaped limiting hole 32, the positioning protrusion 31 slides in the strip-shaped limiting hole 32 to limit the range of the in-and-out movement path of the small eyebrow 25.

[0054] As an illustration, the transmission bolt, the circumferential driver, the linear driver, the driving gear, and the bolt connection details between the components are not specifically shown in the figure.

[0055] Specific working principle: when the outer eyebrow 3 needs to move in and out, the circumferential driver acts, the rotating disc 7 rotates, the dynamic groove hole 11 pushes the transmission bolt inwards or outwards, and drives the outer eyebrow 3 to move. When it needs to move in the opposite direction, the circumferential driver reverses the rotation. When the small eyebrow 25 needs to move in and out, the linear driver pushes the guide driving plate 29 to act, and the small eyebrow 25 thereon moves together.

[0056] The specific embodiments described herein are merely illustrative of the spirit of the utility model. Those skilled in the art to which the utility model belongs can make various modifications or supplements to the described specific embodiments or use similar ways to replace, but will not deviate from the spirit of the utility model or exceed the scope defined by the appended claims.

Claims

1. A surrounding Bragg case, comprising a ring-shaped supporting base plate (1), characterized in that, The support base (1) is detachably provided with a ring-shaped middle eyebrow (2), the middle eyebrow (2) is an integral structure, the radial outer side of the middle eyebrow (2) is provided with an outer eyebrow (3), the outer eyebrow (3) is connected with a rotary access driving structure (4) and can be radially moved.

2. The surrounding Bragg case according to claim 1, characterized in that The middle eyebrow (2) is provided with a notch (5), the outer eyebrow (3) is provided with at least three groups, and the end of the middle eyebrow (2) is provided with a guide inclined surface (6) on the inner side, the outer side and the top surface.

3. The surrounding Bragg case according to claim 1, characterized in that The rotary access driving structure (4) comprises a rotating disc (7) rotatably connected to the support base (1), the rotating disc (7) is driven to rotate by a circumferential driver, and the rotating disc (7) is connected with the outer eyebrow (3) through a transmission structure (9).

4. The surrounding Bragg case according to claim 3, characterized in that The transmission structure (9) comprises a fixed slot hole (10) penetratingly and formed on the support base (1) and extending in the radial direction, and a dynamic slot hole (11) penetratingly and formed on the rotating disc (7) and extending in the radial direction and the circumferential direction, the outer eyebrow (3) is connected with a transmission bolt, the rod of the transmission bolt is simultaneously provided with the dynamic slot hole (11) and the fixed slot hole (10), and the bolt head is provided with a pad (13) between the rotating disc, and the pad (13) is provided with a through hole (14) allowing the rod to pass through.

5. The surrounding Bragg case according to claim 3, characterized in that The rotating angle indicating structure (15) is arranged between the support base (1) and the rotating disc (7); the rotating angle indicating structure (15) comprises at least one radial pointing indicating tip (16) arranged on the support base (1), the rotating disc (7) is provided with an indicating scale (17), and the indicating tip (16) points to the indicating scale (17).

6. The surrounding Bragg case according to claim 5, characterized in that The bottom surface of the support base (1) is detachably fixed with an indicating plate (18), the radial outer side of the indicating plate (18) is provided with the indicating tip (16), the rotating disc (7) comprises a U-shaped indicating part (19) with an opening facing the shaft center, the indicating plate (18) is located in the U-shaped indicating part (19), and the indicating scale (17) is uniformly distributed on the arc segment of the U-shaped indicating part (19).

7. The surrounding Bragg case according to claim 3, characterized in that The radial outer side of the rotating disc (7) is circumferentially and uniformly provided with a transmission tooth (20), the support base (1) is rotatably connected with a transmission gear (21) engaged with the transmission tooth (20), and the output shaft of the circumferential driver is connected with the transmission gear (21) through a driving gear.

8. The surrounding Bragg case according to claim 7, characterized in that The radial outer side of the support base (1) is protrusively provided with a driver mounting part (23), the circumferential driver is fixed on the driver mounting part (23), the lower side of the driver mounting part (23) is provided with a protective cover (24), and the transmission gear (21), the driving gear and part of the transmission tooth (20) are covered in the protective cover (24).

9. The surround of any of claims 1-8, wherein, The support base (1) is further provided with a plurality of groups of small eyebrows (25), the middle eyebrows (2) are provided with radial throughways (26), the small eyebrows (25) can pass through the throughways (26), and the small eyebrows (25) are provided with linear in-out driving structures (27) between the support base (1).

10. The surrounding Zinke shield according to claim 9, characterized in that The linear in-out driving structure (27) comprises a small eyebrow mounting plate (28) arranged on the bottom surface of the support base (1), the small eyebrow (25) comprises a guide driving plate (29) located at the bottom, the guide driving plate (29) slides in a radial sliding groove (30) on the small eyebrow mounting plate (28), and the outer end is connected with a linear driver; The groove bottom of the radial sliding groove (30) and the guide driving plate (29) are respectively provided with a positioning convex body (31) and a strip-shaped limiting hole (32), the positioning convex body (31) slides in the strip-shaped limiting hole (32), and the length direction of the strip-shaped limiting hole (32) is adapted to the length direction of the radial sliding groove (30).

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