Multi-angle controllable baking tray structure

Abstract

The multi-angle controllable baking tray structure comprises a first baking tray assembly and a second baking tray assembly, the first baking tray assembly is rotationally connected to the second baking tray assembly and can be closed and opened, the first baking tray assembly is provided with a telescopic positioning pin, the second baking tray assembly is correspondingly provided with an arc-shaped pin hole and a first arc-shaped limiting rib, and the first arc-shaped pin hole and the first arc-shaped limiting rib are matched with each other. When the first baking tray assembly rotates, the positioning pin extends into the arc-shaped pin hole and reciprocates along the arc-shaped track of the arc-shaped pin hole, and when the positioning pin moves to abut against the limiting end of the arc-shaped pin hole, the first baking tray assembly is positioned to a specific angle in an open state; when the positioning pin contracts, the first baking tray assembly continues to rotate in the opening direction, the positioning pin abuts against the first arc-shaped limiting rib and moves along the first arc-shaped limiting rib, and the first baking tray assembly is completely opened relative to the second baking tray assembly. The baking tray structure not only can be positioned to a specific opening angle, but also can be released from positioning and continuously rotated to a maximum angle, so that the whole baking tray structure is better in use experience, and different use requirements are met.

Description

Technical Field

[0001] The utility model relates to the technical field of frying and grilling equipment, in particular to a multi-angle controllable grilling pan structure. Background Art

[0002] A grill typically includes a base, an upper shell, and an upper grilling pan and a lower grilling pan, which are respectively embedded on the base and below the upper shell. The base and the upper shell are connected in a reversible manner so that the upper and lower grilling pans can be clamped or opened. The upper shell is provided with a lifting rod structure, which serves as a handle to facilitate lifting the upper grilling pan and rotating the upper grilling pan. In order to facilitate controlling the rotation angle of the upper grilling pan, grills with controllable rotation angles are currently available on the market. However, the control structure is complex and is external to the upper grilling pan. This not only makes the structure complex but also makes the grill bulky, thereby increasing the overall size and weight of the grill. Utility Model Content

[0003] The purpose of the utility model is to solve the deficiencies of the above-mentioned technologies and to provide a multi-angle controllable baking tray structure.

[0004] When the first baking tray assembly is switched back and forth between the closed and opened positions, the first baking tray assembly is rotated to be connected to the second baking tray assembly and can be closed and opened relative to the second baking tray assembly, and the first baking tray assembly is provided with a retractable positioning pin, the second baking tray assembly is correspondingly provided with an arc pin hole, and the second baking tray assembly is further provided with an arc limiting rib arranged concentrically with the arc pin hole. When the first baking tray assembly switches back and forth between the closed and opened positions, the positioning pin extends into the arc pin hole and moves back and forth along the arc track of the arc pin hole. When the positioning pin moves to abut against one of the limiting ends of the arc pin hole, the first baking tray assembly is positioned to a specific angle of the open position; when the positioning pin is retracted to separate from the arc pin hole, the first baking tray assembly continues to rotate in the opening direction, the positioning pin abuts against the arc limiting rib and moves along the arc limiting rib, at which time the first baking tray assembly is fully opened relative to the second baking tray assembly.

[0005] Preferably, the first baking tray assembly is provided with a driving assembly for driving the positioning pin to extend and retract, the driving assembly including a positioning block and a traction member, the positioning block is slidably connected to the first baking tray assembly, the traction member is connected to the positioning block and moves with the positioning block, the traction member is connected to the positioning pin, and the positioning pin is extended and retracted by the traction member.

[0006] Further optimization is that a reset elastic member is provided between the positioning pin and the first baking tray assembly to enable the positioning pin to retract and expand to form elastic expansion and contraction, and the positioning pin is in a normally extended state under the action of the reset elastic member.

[0007] Further optimization is performed, the first baking tray assembly is provided with an installation channel, the positioning block is slidably installed in the installation channel, the positioning block is connected to a shift block, the first baking tray assembly is provided with a through hole communicating with the installation channel, and the shift block partially extends from the through hole to outside the through hole to form a hand-shift part.

[0008] Further optimized, the traction member is a steel wire, one end of the steel wire is connected to the positioning block, and the other end is connected to the positioning pin.

[0009] Further optimized, the first baking tray assembly is provided with a guide groove for guiding the traction of the steel wire.

[0010] Preferably, the second baking tray assembly is provided with a connecting seat, the first baking tray assembly is rotatably connected to the connecting seat, and the connecting seat is provided with an arc-shaped pin hole and an arc-shaped limiting rib 1 which are arranged concentrically with the rotation center.

[0011] Further optimization, the connecting seat includes connecting seat 1 and connecting seat 2, the two ends of the lifting rod structure are respectively rotatably connected to connecting seat 1 and connecting seat 2, the connecting seat 1 is provided with an arc-shaped pin hole and an arc-shaped limiting rib 1, one end of the lifting rod structure is provided with an elastic column, the connecting seat 2 is provided with a limiting hole adapted to the elastic column, and the connecting seat 2 is also provided with an arc-shaped limiting rib 2 arranged concentrically with the rotation center of this end.

[0012] Further optimization, when the angle of the first baking tray assembly relative to the second baking tray assembly is rotated from 0° to 110°, the positioning pin always moves along the arc-shaped pin hole; when the angle of the first baking tray assembly relative to the second baking tray assembly is rotated from 110° to 180°, the positioning pin always moves along the arc-shaped limiting rib.

[0013] Further optimized, the first baking tray assembly includes a lifting rod structure, an upper shell installed on the lifting rod structure and an upper baking tray installed on the upper shell, the two ends of the lifting rod structure are rotatably connected to the connecting seat, the driving assembly is located on the lifting rod structure, the lifting rod structure is provided with a limit pin hole, and the upper shell is provided with a limit pin adapted to the limit pin hole.

[0014] The technical effect of the utility model is that the first baking tray assembly comprises a lifting rod structure and an upper baking tray located on the lifting rod structure, and the second baking tray assembly is provided with a connecting seat, and the lifting rod structure is rotatably connected to the connecting seat, so that the first baking tray assembly can be rotated relative to the second baking tray assembly, and the lifting rod structure is provided with a very elastic and retractable positioning pin, and the connecting seat is correspondingly provided with an arc-shaped pin hole adapted to the positioning pin. When the first baking tray assembly rotates with the lifting rod structure, the positioning pin moves along the arc-shaped pin hole. When the lifting rod structure is rotated until the positioning pin abuts against the limiting end of the arc-shaped pin hole, the lifting rod structure is positioned, so that the first baking tray assembly is positioned at a specific angle when opened, thereby realizing the positioning of the first baking tray assembly; the lifting rod structure is a hollow structure, and a The driving assembly drives the positioning pin to extend and retract, and the positioning pin is in an extended state under normal circumstances, so that the positioning pin always moves back and forth in the arc-shaped pin hole. When the positioning pin of the driving assembly is retracted, the lifting rod structure releases the positioning and continues to rotate in the direction of a large angle. In the later stage of contraction, the top of the positioning pin abuts against the arc-shaped limiting rib on the connecting seat, so that the first baking tray assembly can continue to rotate. Therefore, through the driving assembly, the first baking tray assembly can continue to rotate after being released from the positioning state, and will not be affected by the limiting end of the arc-shaped pin hole. That is, the first baking tray assembly can be positioned to a specific opening angle relative to the second baking tray assembly, and can also be released from the positioning and continue to rotate to the maximum angle, so that the entire baking tray structure has a better user experience and meets different usage requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the overall structural diagram after the first baking tray assembly is closed;

[0016] Figure 2 This is a diagram of the overall structure of the first baking tray assembly after it is opened to a specific angle;

[0017] Figure 3 This is the overall structural diagram after the first baking tray assembly is fully opened to 180 degrees;

[0018] Figure 4 It is the overall structural diagram of the lifting rod structure;

[0019] Figure 5 It is a partial structural diagram of the lifting rod structure;

[0020] Figure 6 This is the exploded view of the local structure of the lifting rod structure;

[0021] Figure 7 This is the structural explosion diagram of the connecting seat 1;

[0022] Figure 8 This is the structural explosion diagram of connector 1 and connector 2;

[0023] Figure 9 yes Figure 8 Exploded view of local structure;

[0024] Figure 10 This is a diagram showing the position of the positioning pins after the first baking tray assembly is closed;

[0025] Figure 11 is a diagram showing the position of the positioning pins after the first baking tray assembly is opened to a specific angle;

[0026] Figure 12 This is a diagram showing the position of the positioning pins after the first baking tray assembly is opened to 180°.

[0027] In the figure: 1, first baking tray assembly; 11, lifting rod structure; 111, positioning pin; 112, mounting channel; 113, elastic column; 114, limiting pin hole; 115, fixing seat; 116, fixing portion;

[0028] 12. Upper shell; 121. Limit pin; 13. Upper baking tray;

[0029] 2. Second baking tray assembly; 21. Connecting seat 1; 211. Arc-shaped pin hole; 212. Arc-shaped limiting rib 1;

[0030] 22. Connecting seat 2; 221. Limiting hole; 222. Arc-shaped limiting rib 2;

[0031] 23. Lower shell; 24. Lower baking tray;

[0032] 3. Driving assembly; 31. Positioning block; 32. Pulling member; 33. Resetting elastic member; 34. Shifting block; 35. Hand shifting part; 36. Guide slide; 37. Threaded column; 38. Guide piece. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of the present invention.

[0034] In this embodiment, Figures 1 to 3As shown, it includes a first baking tray assembly 1 and a second baking tray assembly 2, the first baking tray assembly 1 is rotatably connected to the second baking tray assembly 2 through a connecting seat, and the connecting seat is detachably installed on the second baking tray assembly 2, the first baking tray assembly 1 includes a lifting rod structure 11, an upper shell 12 and an upper baking tray 13, the second baking tray assembly 2 includes a lower shell 23 and a lower baking tray 24, the lifting rod structure 11 is rotatably connected to the connecting seat through a rotating shaft structure, the connecting seat is connected to the side of the lower shell 23, the upper shell 12 is connected to the lifting rod structure 11, the upper baking tray 13 is installed in the upper shell 12, and the lower baking tray 24 is installed in the lower shell 23, the lifting rod structure 11 drives the upper shell 12 and the upper baking tray 13 to rotate, the lifting rod structure 11 is convenient for direct contact with the hand, and it is convenient for the first baking tray assembly 1 to rotate, so as to realize the rotation of the first baking tray assembly 1 relative to the second baking tray assembly 2, and finally realize that the first baking tray assembly 1 can be closed and opened relative to the second baking tray assembly 2.

[0035] The first baking tray assembly 1 is provided with a retractable positioning pin 111. In this embodiment, Figures 4 to 6 As shown, the upper baking tray 13 and the lower baking tray 24 are both square in shape, and the lifting rod structure 11 is a hollow rod-shaped structure, which extends along the periphery of the upper shell 12 to form a rod-shaped structure with an opening in a square direction. The lifting rod structure 11 includes a base, which is a hollow tube structure. The base is opened, and a detachable cover structure is provided at the opening. The two ends formed by the opening of the lifting rod structure 11 are connected to the connecting seat. In this embodiment, the connecting seat includes a connecting seat 1 21 and a connecting seat 2 22, which are symmetrically arranged on one side of the lower shell 23. The two ends of the opening of the lifting rod structure 11 are respectively rotatably connected to the connecting seat 1 21 and the connecting seat 2 22, and the coaxial rotation connection is achieved by bolts or rotating shaft structures, so that the lifting rod structure 11 can rotate back and forth around the connecting seat 1 21 and the connecting seat 2 22 at the same time. The positioning pin 111 is installed on the end surface of one end of the lifting rod structure 11. The lifting rod structure 11 is provided with a fixing seat 115 at this end. The fixing seat 115 may be integrated with the inner wall of the lifting rod structure 11. A mounting through hole is provided on the fixing seat 115. The positioning pin 111 is inserted into the mounting through hole and can be extended and retracted along the mounting through hole. Another mounting through hole is provided in the center of the fixing seat 115. A rotating shaft or bolt passes through the mounting through hole to form a rotational connection between the connecting seat and the lifting rod structure 11. A fixing portion 116 is provided inside the lifting rod structure 11. The positioning pin 111 A reset elastic member 33, such as a reset spring, is provided on it. The reset elastic member 33 is sleeved on the rear half of the positioning pin 111. One end of the reset elastic member 33 rests on the fixing seat 115, and the other end rests on the fixing portion 116. The positioning pin 111 is extended and retracted under the action of the reset elastic member 33 and is always in an extended state. The connecting seat is correspondingly provided with an arc-shaped pin hole 211, and the positioning pin 111 extends into the arc-shaped pin hole 211. As the lifting rod structure 11 rotates around the connecting seat, the positioning pin 111 moves along the arc path of the arc-shaped pin hole 211.

[0036] The lifting rod structure 11 is also provided with a driving component 3 for driving the positioning pin 111 to extend and retract. The driving component 3 includes a positioning block 31 and a traction member 32. The positioning block 31 is slidably connected to the lifting rod structure 11. In this embodiment, the two side parts of the lifting rod structure 11 are distributed in a straight line, and an installation channel 112 is formed inside this part of the lifting rod structure 11. The positioning block 31 is slidably installed in the installation channel 112. The positioning block 31 can move linearly back and forth along the installation channel 112. In this embodiment, the traction member 32 is a steel wire. The traction member 32 is located in the installation channel 112 of the lifting rod structure 11. One end of the traction member 32 is connected to the positioning block 31, and the other end passes through the fixing part 116 to be connected to the positioning pin 111. The fixing part 116 plays a certain guiding role on the traction member 32.

[0037] In addition, a guide groove 36 is provided inside the lifting rod structure 11 near the fixed part 116. The guide groove 36 includes a screw hole column, a bolt is inserted on the screw hole column, and a guide piece 38 is sleeved on the bolt. A guide groove is formed between the guide piece 38 and the nut of the bolt. The traction member 32, which is one end of the steel wire, first passes through the guide groove, then passes through the fixed part 116 and is connected to the positioning pin 111. The positioning block 31 moves along the installation channel 112 to pull the traction member 32, and the traction member 32 then overcomes the reset elastic member 33 and pulls the positioning pin 111 to retract.

[0038] like Figure 7 As shown, the connecting seat is further provided with an arc-shaped limiting rib 212 arranged concentrically with the arc-shaped pin hole 211. When the lifting rod structure 11 switches back and forth between the closed and open states, the positioning pin 111 extends into the arc-shaped pin hole 211 and reciprocates along the arc track of the arc-shaped pin hole 211. That is, during the switching and rotation process of the first baking tray assembly 1 between opening and closing, the positioning pin 111 always extends into the arc-shaped pin hole 211 and reciprocates along the arc-shaped pin hole 211. It should be noted that, as Figure 10 and 11 As shown, an arc-shaped groove is provided on the surface of the connecting seat as an arc-shaped pin hole 211, and the two ends of the arc-shaped groove serve as limit ends. When the positioning pin 111 moves to abut against one of the limit ends of the arc-shaped pin hole 211, the first baking tray assembly 1 is just positioned to a specific angle of the open state, and the specific opening angle is defined as α, 90°≤α≤110°, that is, when the first baking tray assembly 1 is in the open state, the opening angle is between 90° and 110° with the second baking tray assembly 2, that is, the angle between the first baking tray assembly 1 and the second baking tray assembly 2 is a right angle or an obtuse angle, the positioning pin 111 of the lifting rod structure 11 moves to and abuts against the limit end of the arc-shaped pin hole 211, at this time the lifting rod assembly is positioned and can no longer continue to rotate in the direction of increasing the angle. The specific positioning angle can be set according to actual needs, so that the first baking tray assembly 1 is positioned in the open state, which is convenient for controlling the flipping of the first baking tray assembly 1.

[0039] like Figure 12 As shown, when the positioning block 31 is driven to move, the positioning block 31 drives the traction member 32, and the traction member 32 drives the positioning pin 111 to overcome the reset elastic member 33 and shrink. The positioning pin 111 shrinks to disengage from the arc-shaped pin hole 211. At this time, when the lifting rod structure 11 continues to rotate in the opening direction, the top of the positioning pin 111 will reach the surface of the arc-shaped limiting rib 1 212 and move along the arc-shaped limiting rib 1 212. At this time, the first baking tray assembly 1 is fully opened relative to the second baking tray assembly 2, that is, when the first baking tray assembly When the angle of the first baking tray assembly 1 relative to the second baking tray assembly 2 is rotated from 110° to 180°, or to an angle smaller than 180°, that is, 110°<α≤180°, the angle between the first baking tray assembly 1 and the second baking tray assembly 2 is an obtuse angle, and the positioning pin 111 always moves along the arc-shaped limiting rib 1 212. Of course, a limiting end of an extreme position can be provided at the arc-shaped limiting rib 1 212 to position the first baking tray assembly 1 at an angle exceeding 110°, thereby preventing the first baking tray assembly 1 from being too free.

[0040] The positioning block 31 is connected to the shift block 34. A through hole communicating with the installation channel 112 is opened on the outer side of the lifting rod structure 11. The shift block 34 partially extends from the through hole to the outside of the through hole to form a hand shift part 35. By manually shifting the hand shift part 35, the hand shift part 35 drives the shift block 34 to move, and the shift block 34 drives the positioning block 31 to move.

[0041] Further, if Figure 8 As shown, the two ends of the lifting rod structure 11 are respectively rotatably connected to the connecting seat 1 21 and the connecting seat 2 22, and the arc-shaped pin hole 211 and the arc-shaped limiting rib 1 212 are arranged on the connecting seat 1 21. One end of the lifting rod structure 11 is provided with an elastic column 113, and the elastic column 113 is installed on the other end surface of the lifting rod structure 11 through an elastic member, thereby forming an elastic column 113 with elastic expansion and contraction, and the connecting seat 22 is provided with a limiting hole 221 adapted to the elastic column 113. The limiting hole 221 is shallow in depth and has a concave arc bottom surface. When the lifting rod structure 11 is opened to an angle α and positioned, the elastic column 113 is inserted into the limiting hole 221 under the drive of the elastic member to form a positioning, thereby further strengthening the positioning of the lifting rod structure 11 in the open state, that is, both ends of the lifting rod structure 11 are positioned, so that the positioning of the first baking tray assembly 1 is more stable, and the lifting rod structure 11 is prevented from loosening when it is in the open state.

[0042] like Figure 9 As shown, the connecting seat 22 is provided with an arc-shaped limiting rib 222 which is concentric with the rotation center. When the lifting rod structure 11 continues to rotate after the rotation angle exceeds α, the elastic column 113 slides out of the limiting hole 221 and shrinks and moves to the arc-shaped limiting rib 222, so that when the lifting rod structure 11 rotates, the elastic column 113 can continue to rotate along the arc-shaped limiting rib 222 without hindering the continued rotation of the lifting rod structure 11.

[0043] Furthermore, a limit pin hole 114 is provided on the lifting rod structure 11, and the upper shell 12 is provided with a limit pin 121 adapted to the limit pin hole 114. The limit pin 121 is also provided with an elastic part accordingly to form an elastic column 113 with elastic expansion and contraction. When the first baking tray assembly 1 is rotated to 180°, that is, when the first baking tray assembly 1 is fully opened, the limit pin 121 and the limit pin hole 114 are matched, so that the first baking tray assembly 1 can be positioned in a relatively horizontal position.

[0044] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone can derive other forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, any technical solution that is the same or similar to that of the present application falls within the scope of protection of the present invention.

Claims

1. Multi-angle controllable baking tray structure, characterized by: The invention comprises a first baking tray assembly (1) and a second baking tray assembly (2), wherein the first baking tray assembly (1) is rotatably connected to the second baking tray assembly (2) and can realize closing and opening actions relative to the second baking tray assembly (2), the first baking tray assembly (1) is provided with a retractable positioning pin (111), the second baking tray assembly (2) is correspondingly provided with an arc-shaped pin hole (211), and the second baking tray assembly (2) is further provided with an arc-shaped limiting rib (212) located on the rotation track of the positioning pin (111), and when the first baking tray assembly (1) switches back and forth between the closed state and the open state, the positioning pin (111) extends into the arc-shaped pin hole (211) and moves back and forth along the arc track of the arc-shaped pin hole (211); When the first baking tray assembly (1) is rotated to the open state, the positioning pin (111) moves to the limit end against the arc-shaped pin hole (211), so that the angle between the first baking tray assembly (1) and the second baking tray assembly (2) is a right angle or an obtuse angle, or The positioning pin (111) contracts until it is separated from the arc-shaped pin hole (211), and the first baking tray assembly (1) continues to rotate in the opening direction, so that the positioning pin (111) abuts against the arc-shaped limiting rib (212) and moves along the arc-shaped limiting rib (212) to the extreme position of the opening state of the first baking tray assembly (1), so that the first baking tray assembly (1) is in a fully opened state relative to the second baking tray assembly (2).

2. The multi-angle controllable baking tray structure according to claim 1, characterized in that: The first baking tray assembly (1) is provided with a driving assembly (3) for driving the positioning pin (111) to extend and retract, the driving assembly (3) comprising a positioning block (31) and a traction member (32), the positioning block (31) being slidably connected to the first baking tray assembly (1), the traction member (32) being connected to the positioning block (31) and moving with the positioning block (31), the traction member (32) being connected to the positioning pin (111), and the positioning pin (111) being extended and retracted by the traction member (32).

3. The multi-angle controllable baking tray structure according to claim 2, characterized in that: A reset elastic member (33) is provided between the positioning pin (111) and the first baking tray assembly (1) to enable the positioning pin (111) to retract and retract to form elastic retraction, and the positioning pin (111) is in a normally extended state under the action of the reset elastic member (33).

4. The multi-angle controllable baking tray structure according to claim 2, characterized in that: The first baking tray assembly (1) is provided with an installation channel (112), the positioning block (31) is slidably installed in the installation channel (112), the positioning block (31) is connected to a shifting block (34), the first baking tray assembly (1) is provided with a through hole communicating with the installation channel (112), and the shifting block (34) partially extends from the through hole to the outside of the through hole to form a hand shifting portion (35).

5. The multi-angle controllable baking tray structure according to claim 2, characterized in that: The traction member (32) is a steel wire, one end of which is connected to the positioning block (31), and the other end of which is connected to the positioning pin (111).

6. The multi-angle controllable baking tray structure according to claim 5, characterized in that: The first baking tray assembly (1) is provided with a guide slot (36) for guiding the traction of the steel wire.

7. The multi-angle controllable baking tray structure according to claim 2, characterized in that: The second baking tray assembly (2) is provided with a connecting seat, and the first baking tray assembly (1) is rotatably connected to the connecting seat. The connecting seat is provided with an arc-shaped pin hole (211) and an arc-shaped limiting rib (212) arranged concentrically with the rotation center.

8. The multi-angle controllable baking tray structure according to claim 7, characterized in that: The first baking tray assembly (1) comprises a lifting rod structure (11), an upper shell (12) mounted on the lifting rod structure (11), and an upper baking tray (13) mounted on the upper shell (12); both ends of the lifting rod structure (11) are rotatably connected to a connecting seat; the driving assembly (3) is located on the lifting rod structure (11); a limiting pin hole (114) is provided on the lifting rod structure (11); and the upper shell (12) is provided with a limiting pin (121) adapted to the limiting pin hole (114).

9. The multi-angle controllable baking tray structure according to claim 8, characterized in that: The connecting seat includes a connecting seat 1 (21) and a connecting seat 2 (22), and the two ends of the lifting rod structure (11) are respectively rotatably connected to the connecting seat 1 (21) and the connecting seat 2 (22), and the connecting seat 1 (21) is provided with an arc-shaped pin hole (211) and an arc-shaped limiting rib 1 (212). One end of the lifting rod structure (11) is provided with an elastic column (113), and the connecting seat 2 (22) is provided with a limiting hole (221) adapted to the elastic column (113), and the connecting seat 2 (22) is also provided with an arc-shaped limiting rib 2 (222) arranged concentrically with the rotation center of the end.

10. The multi-angle controllable baking tray structure according to claim 2, characterized in that: When the angle of the first baking tray assembly (1) relative to the second baking tray assembly (2) is rotated from 0° to 110°, the positioning pin (111) always moves along the arc-shaped pin hole (211); when the angle of the first baking tray assembly (1) relative to the second baking tray assembly (2) is rotated from 110° to 180°, the positioning pin (111) always moves along the arc-shaped limiting rib (212).

Images