CN217980033U - Self-locking turnover support of sighting device - Google Patents

Abstract

The utility model provides an auto-lock upset support of sighting device includes the base, rotates seat, first pivot and second pivot, and the base is provided with the first installation passageway of intercommunication each other and second installation passageway, the second position promptly. The first rotating shaft is fixedly connected with the rotating seat, the first rotating shaft is arranged in the first installation channel, the second rotating shaft is arranged in the second installation channel, the first rotating shaft comprises a second concave portion, the second rotating shaft comprises a first concave portion, and the first concave portion and the second concave portion can both rotate to the second position. When the first recess is located at the second position, the first rotating shaft can rotate; when the second concave part rotates to the second position, the second rotating shaft can rotate, when the second rotating shaft drives the first concave part to leave the second position, the outer peripheral part of the second rotating shaft is in limited fit with the second concave part in the second rotating direction and the fourth rotating direction, and the first rotating shaft is fixed at the designated position. The utility model discloses a locking structure has stronger stability under the service environment of jolting or vibration, and locking structure is difficult for removing passively.

Description

Self-locking turnover support of sighting device

Technical Field

The utility model relates to an aim utensil field, specifically be a self-locking upset support that aims utensil.

Background

When using the firearms to shoot, along with the distance change of different shooting targets, need the selective use doubling mirror, for quick messenger's doubling mirror switches between operating position and the position of waiting to use, the current mode is generally for using the upset support to install the doubling mirror on the firearms.

The existing overturning support comprises a rotating seat, a rotating shaft and a fixed seat, wherein the fixed seat is used for being connected with an overturning support mounting seat of a gun, and the rotating seat is used for mounting an aiming tool. The rotating seat is connected to the fixed seat in a rotating mode through the rotating shaft, the rotating seat is fixedly connected with the rotating shaft, and when the rotating seat is turned over, the rotating shaft rotates in the installation channel of the fixed seat. In order to ensure that the rotating seat can be stably kept at the working position, jacks are arranged in the circumferential direction of the rotating shaft, the base is provided with a limiting part mounting position, a bolt, a spring and a button are arranged in the limiting part mounting position, the bolt is inserted into the jacks under the elastic action of the spring to limit the rotation of the rotating shaft, so that the rotating shaft is fixed at the working position, when the rotating seat is required to be separated from the working position, the bolt is pushed to pull the bolt, and the bolt slides out of the jacks to remove the rotation limitation of the rotating seat.

However, the existing turning support cannot better cope with the use situation of the sighting telescope, although the existing turning support can keep the rotating seat and the sighting telescope thereon at the working position, the turning support can bear jolt and vibration caused by shooting based on the particularity of the use situation of the firearm and the particularity of the use state of the firearm, so that the bolt can overcome the action force of the spring to generate linear displacement and can be separated from the jack, and the sighting telescope is separated from the working position and fails.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a stable in structure anti-vibration effectual auto-lock upset support of sighting device.

In order to achieve the first purpose, the utility model provides a self-locking overturning support of an aiming device, which comprises a base, a rotating seat and a first rotating shaft, wherein the base comprises a first mounting channel arranged along a first direction; the self-locking overturning bracket of the sighting telescope further comprises a second rotating shaft, the second rotating shaft comprises a first concave part, the second rotating shaft is positioned in a second mounting channel, the first concave part can rotate from a first position to a second position along a first rotating direction, and the second position is positioned at the communication part of the first mounting channel and the second mounting channel; the second connecting part comprises a second concave part which can rotate to a second position along a second rotating direction when the first concave part is positioned at the second position; when the second concave part is positioned at the second position, the first concave part can rotate to the first position along the third rotating direction; when the second concave part is located at the second position and the first concave part is located at the first position, the outer peripheral part of the second rotating shaft is in limited fit with the second concave part in the second rotating direction and the fourth rotating direction; the first rotational direction is opposite to the third rotational direction, and the second rotational direction is opposite to the fourth rotational direction.

According to the above technical scheme, the second concave portion on the first rotating shaft, the first concave portion on the second rotating shaft and the outer peripheral portion of the second rotating shaft form the locking structure of the utility model, when the first concave portion is at the second position, the second concave portion is opposite to the inner periphery of the first mounting channel, the inner concave portion of the first concave portion is overlapped with the first mounting channel, no overlapped portion exists between the outer peripheral surface of the second rotating shaft and the first mounting channel, and the first rotating shaft can freely rotate in the first mounting channel; when the second concave part is at the second position, the second concave part is opposite to the inner periphery of the second mounting channel, the concave space of the second concave part is overlapped with the second mounting channel, the outer periphery of the second rotating shaft is not overlapped with the second mounting channel, and the second rotating shaft can rotate freely; therefore, when the second concave part is at the second position, the second rotating shaft can rotate, when the first concave part leaves the second position, the outer peripheral part of the second rotating shaft is in limit fit with the second concave part, the first rotating shaft cannot rotate, and at this moment, if the first rotating shaft is required to rotate, the first concave part needs to be rotated to the second position. Although the gun can vibrate in a using state, a rotating force can not be provided for the second rotating shaft, so that the second rotating shaft can be kept at a relatively fixed position, after the outer peripheral part of the second rotating shaft is in locking fit with the second concave part, as long as the second rotating shaft is kept still or the first concave part does not rotate to the second position, the outer peripheral part of the second rotating shaft can keep the first rotating shaft at a fixed locking position, and the second rotating shaft locks the position of the first rotating shaft in a rigid manner, so that mistaken unlocking caused by vibration or bumping of the gun in the background art can be avoided.

Further according to the above aspect, the first recess includes a first arc surface, and/or the second recess includes a second arc surface.

Therefore, the surfaces of the first concave part and the second concave part are set to be cambered surfaces, and mutual interference can not be generated in the respective rotating processes of the first rotating shaft and the second rotating shaft.

According to a further aspect of the foregoing disclosure, a diameter of the first arc surface is equal to an outer diameter of the second connecting portion, and/or a diameter of the second arc surface is equal to a diameter of the second rotating shaft.

It can be seen that the diameter of the first cambered surface is equal to the outer diameter of the second connecting part, and when the first concave part is located at the second position, the outer periphery of the second connecting part is more compactly matched with the first concave part; the diameter of second cambered surface equals the diameter of second pivot, and when the second concave part was located the second position, the periphery of second pivot and the cooperation of second concave part were compacter.

According to a further aspect of the foregoing disclosure, when the first concave portion is located at the second position, the first arc surface and the inner wall surface of the first installation channel are located on the same circumference, and/or when the second concave portion is located at the second position, the second arc surface and the inner wall surface of the second installation channel are located on the same circumference.

Therefore, the diameter of the first cambered surface is equal to the outer diameter of the second connecting part, clearance fit can be formed between the first concave part and the second connecting part, the position of the second rotating shaft is locked more accurately, and the stability of the locking structure is better; the diameter of the second cambered surface is equal to the outer diameter of the second rotating shaft, clearance fit can be formed between the periphery of the second concave part and the second rotating shaft, the position of the first rotating shaft is locked more accurately, and the stability of the locking structure is better.

According to a further aspect of the above, the second connecting portion further includes a third recess, and when the first recess is located at the second position, the third recess is rotatable to the second position along the fourth rotation direction; when the third recess is located at the second position, the first recess can rotate to the first position along the third rotation direction, and when the third recess is located at the second position and the first recess is located at the first position, the outer peripheral portion of the second rotation shaft is in limited fit with the second recess in the second rotation direction and the fourth rotation direction.

According to a further aspect of the above disclosure, when the second recess is located at the second position, the rotating seat is located at the working position; when the third recess is located at the second position, the rotating seat is located at the position to be used.

It follows that the second and third recesses enable the rotating seat to remain stable both in the working position and in the position to be used.

According to a further aspect of the above, the third recess includes a third arc surface, and a diameter of the third arc surface is equal to an outer diameter of the second rotating shaft; the central line of the third cambered surface is mutually vertical to the central line of the second cambered surface.

Therefore, the diameter of the third cambered surface is equal to the outer diameter of the second rotating shaft, the central line of the third cambered surface is perpendicular to the central line of the second cambered surface, a clearance fit can be formed between the third concave part and the periphery of the second rotating shaft, and the rotating seat rotates 90 degrees and then just rotates to a position to be used from a working position.

According to the scheme, the self-locking overturning support of the sighting telescope further comprises an elastic piece, and two ends of the elastic piece are respectively connected with the base and the second rotating shaft; when the second concave part rotates from the second position to the first position, the elastic part stores energy.

Therefore, when the second concave part or the third concave part is located at the second position and the first concave part is located at the second position, the torsion spring can release stored energy to drive the second rotating shaft to rotate, so that the second concave part automatically returns to the first position to lock the first rotating shaft at the fixed position.

According to the scheme, the self-locking overturning bracket of the sighting telescope further comprises a spanner; the wrench is connected to the extending end part of the second rotating shaft and comprises a sliding groove; the base is provided with a limiting part, the limiting part is located in the sliding groove, the limiting part is in limiting fit with the sliding groove in the first rotating direction, and/or the limiting part is in limiting fit with the sliding groove in the third rotating direction.

Therefore, the spanner is arranged to operate the second rotating shaft more easily, and the limiting part is in limiting fit with the sliding groove to prevent the second rotating shaft from rotating beyond the stroke to cause structural damage.

According to the scheme, the self-locking overturning bracket of the sighting telescope further comprises a shaft sleeve, wherein the shaft sleeve is positioned between the second connecting part and the base; the shaft sleeve includes a notch portion, the notch portion being located at a second position.

Therefore, the shaft sleeve enables the first rotating shaft to rotate more smoothly and reduces abrasion of the first rotating shaft and the base, the notch portion enables the shaft sleeve and the second connecting portion to have the largest matching area, and the length of the shaft sleeve does not need to be reduced for avoiding the second position.

Drawings

Fig. 1 is a first view structural diagram of the self-locking turning bracket of the sighting device of the present invention.

Fig. 2 is an exploded view of the self-locking turning bracket of the sighting device of the present invention.

Fig. 3 is a second view structural diagram of the rotating base of the self-locking turning bracket of the sighting telescope of the present invention in the working position.

Fig. 4 isbase:Sub>A sectional view atbase:Sub>A-base:Sub>A in fig. 3.

Fig. 5 is a sectional view at B-B in fig. 4.

Fig. 6 is a second view structural diagram of the self-locking turning bracket of the sighting device of the present invention when the rotating base is between the working position and the position to be used.

Fig. 7 is a sectional view at C-C in fig. 6.

Fig. 8 is a sectional view at D-D in fig. 7.

Fig. 9 is a second view structural diagram of the self-locking turning bracket of the sighting device of the present invention when the rotating base is at the position to be used.

Fig. 10 is a sectional view at E-E in fig. 9.

Fig. 11 is a sectional view at F-F in fig. 10.

Fig. 12 is a structural diagram of a first rotating shaft of the self-locking turning bracket of the sighting device of the present invention.

Fig. 13 is a connection relationship diagram of the second rotating shaft, the connecting rod and the wrench of the embodiment of the self-locking tilting bracket of the sight of the present invention.

Fig. 14 is a partial enlarged view at G in fig. 2.

Fig. 15 is a structural view of a shaft sleeve of an embodiment of a self-locking turning support of the sighting device of the present invention.

The present invention will be further explained with reference to the drawings and examples.

Detailed Description

Referring to fig. 1 to 11, a uniform spatial rectangular coordinate system is established in each drawing, in which a first direction is an X-axis direction and a second direction is a Y-axis direction.

Referring to fig. 1, the self-locking flip bracket of the sight is used for connecting the sight to a firearm in a flip manner.

Referring to fig. 2, the self-locking turning bracket of the sight of the present embodiment includes a rotating base 1, a base 2, a first rotating shaft 3, a second rotating shaft 4, a shaft sleeve 5, a first locking screw 61, a second locking screw 62, a torsion spring 7, a wrench 8, and a connecting rod 9.

Referring to fig. 2, the rotating base 1 includes a first sleeve 11 and a scope mounting base 12 connected to an outer periphery of the first sleeve 11, the first sleeve 11 includes a third mounting passage 13, and an extending direction of the third mounting passage 13 is an X-axis direction.

With reference to fig. 2 and 14, the base 2 includes a second sleeve 24 and a fixing seat 25, the second sleeve 24 includes a first mounting channel 21, and the extending direction of the first mounting channel 21 is the X-axis direction. The base 2 further comprises a second mounting channel 22, and the extending direction of the second mounting channel 22 is the Y-axis direction. First installation passageway 21 and second installation passageway 22 communicate each other, and second passageway 22 is located the position of keeping away from the central line of first installation passageway 21, and first installation passageway 21 and second installation passageway 22's intercommunication department do the utility model discloses a second position, the peripheral position of second position for being located the central line of keeping away from first installation passageway 21 in first installation passageway 21.

With reference to fig. 1, fig. 2 and fig. 12, the extending direction of the first rotating shaft 3 is the X-axis direction, the first rotating shaft 3 includes a first connecting portion 34, a second connecting portion 35 and a shoulder 31, the second connecting portion 35, the shoulder 31 and the first connecting portion 34 are sequentially arranged along the X-axis direction, the extending end portion of the first connecting portion 34 and the extending end portion of the second connecting portion 35 are both provided with an internal thread hole, the extending directions of the two internal thread holes are the X-axis direction, the second connecting portion 35 is cylindrical, the outer periphery of the cross section of the first connecting portion 34 in the X-axis direction includes two opposite straight line segments and two opposite arc segments, the outer peripheral shape of the first connecting portion 34 is the same as the inner peripheral shape of the third mounting channel 13, and the first connecting portion 34 is inserted into the third mounting channel 13 and is in clearance fit therebetween.

Referring to fig. 2 and 4, the first locking screw 61 is engaged with the internal thread section of the first connecting portion 34 to fasten the rotary base 1 to the first connecting portion 34, and the extending end portion of the first sleeve 11 in the negative X-axis direction abuts against the side wall of the shoulder 31 in the positive X-axis direction.

With reference to fig. 2, 4, 10, and 12, the outer periphery of the second connecting portion 35 includes a second recess 32, a third recess 33, and a second peripheral portion 36, and the second peripheral portion 36 is a portion of the outer peripheral surface of the second connecting portion 35 other than the second recess 32 and the third recess 33. The second concave part 32 comprises a cambered groove which is inwards concave from the periphery of the second connecting part 35, the concave surface of the cambered groove is a second cambered surface 321, and the diameter of the second cambered surface 321 is equal to that of the second rotating shaft 4; the third concave part 33 includes a cambered groove concaved inwards from the outer circumference of the second connecting part 35, the concave surface of the cambered groove is a third cambered surface 331, and the diameter of the third cambered surface 331 is equal to the diameter of the second rotating shaft 4. The central line of the third arc surface 331 is perpendicular to the central line of the second arc surface 321, and the central lines of the third arc surface 331 and the second arc surface 321 are perpendicular to the axis of the first rotating shaft 3.

With reference to fig. 2 and 4, a shaft sleeve 5 is disposed in the first mounting passage 21, the shaft sleeve 5 includes a notched portion 51, the notched portion 51 is communicated to the periphery of the shaft sleeve 5 along the negative Z-axis direction, the notched portion 51 is located at the communication position of the first mounting passage 21 and the second mounting passage 22 for avoiding, the second connecting portion 35 is mounted in the shaft sleeve 5, the second connecting portion 35 is rotatable around the shaft center thereof in the second rotation direction and the fourth rotation direction, respectively, and the extending end portion of the second sleeve 24 located in the positive X-axis direction abuts against the side wall of the shaft shoulder 31 located in the negative X-axis direction; the second recess 32 and the third recess 33 can be rotated to the second position, respectively, by rotating the first rotation shaft 3.

With reference to fig. 2 and 14, a screw mounting position 26 is provided at an extending end portion of the first mounting passage 21, the first mounting passage 21 and the screw mounting position 26 are sequentially arranged in the negative direction of the X axis, and an inner diameter of the screw mounting position 26 is larger than that of the first mounting passage 21. Still include first spacing portion 23 in the second sleeve 24, first spacing portion 23 is the arc arch, and first installation passageway 21, first spacing portion 23 and screw installation position 26 set gradually on the negative-going of X axle, and the centre of a circle of the pitch arc that first spacing portion 23 is located is on the axis of first installation passageway 21, and the surface of first spacing portion 23 towards its centre of a circle is the internal face parallel and level of first installation passageway 21.

With reference to fig. 2, 4 and 15, the extending end of the shaft sleeve 5 includes a second limiting portion 52, the second limiting portion 52 is an arc-shaped protrusion protruding from the outer periphery of the notch portion 51 along the radial direction of the shaft sleeve 5, and the first limiting portion 23 and the second limiting portion 52 are fastened to form a circular ring and are in limiting fit in the circumferential direction.

Referring to fig. 2 and 4, the second locking screw 62 is located in the screw mounting position, and the second locking screw 62 is engaged with the internal threaded section of the second connecting portion 35.

Referring to fig. 2, 5 and 8, the second rotating shaft 4 is mounted in the second mounting passage 22, the outer periphery of the second rotating shaft 4 includes a first outer peripheral portion 43 and a first concave portion 41, the first outer peripheral portion 43 is a portion of the outer peripheral surface of the second rotating shaft 4 other than the first concave portion 41, and the first outer peripheral portion 43 is the outer peripheral portion of the second rotating shaft 4 in the present embodiment. The first concave part 41 is an arc groove which is inwards concave from the periphery of the second rotating shaft 4, the concave surface of the arc groove is a first arc surface 441, the central line of the first arc surface 441 is perpendicular to the axis of the second rotating shaft 4, the diameter of the first arc surface 441 is equal to the outer diameter of the second connecting part 35, the first concave part 41 can be rotated to a second position by rotating the second rotating shaft 4, a torsion spring mounting position 42 is arranged at the extending end part of the second rotating shaft 4, the extending end part of the second rotating shaft 4 is also connected with a connecting rod 9 which is cylindrical, the extending direction of the connecting rod 9 is the Y-axis direction, the extending end part of the connecting rod 9 is connected with a wrench 8, a torsion spring 7 is sleeved on the periphery of the connecting rod 9, one end of the torsion spring 7 is located in the torsion spring mounting position 42, the other end of the torsion spring 7 is fixedly connected with the base 2, and the second rotating shaft 4, the connecting rod 9 and the wrench 8 are sequentially arranged along the Y-axis direction; an arc-shaped sliding groove 81 is formed in one positive side of the Y axis of the wrench 8, the sliding groove 81 faces a side wall surface of the base 2 in the negative direction of the Y axis, a limiting member is arranged on one negative side of the Y axis of the fixing seat 25, the limiting member is located in the sliding groove 81, when the wrench 8 is wrenched to drive the second rotating shaft 4 to rotate, the limiting member slides relative to the sliding groove 81, and two extending ends of the sliding groove 81 are in limiting fit with the limiting member in the first rotating direction and the third rotating direction.

With reference to fig. 1, 2, 3 to 5, and 14, the rotating base 1 is located at the working position, the first concave portion 41 is located at the first position, an included angle between a center line of the first concave portion 41 and the X-axis is 45 degrees, the second concave portion 32 is located at the second position, the second arc surface 321 and an inner wall surface of the second installation channel 22 are located at the same circumferential surface, an outer periphery of the second rotating shaft 4 coincides with an inner periphery of the first installation channel 21, the first outer peripheral portion 43 is in clearance fit with the second arc surface 321, and the first outer peripheral portion 43 limits the first rotating shaft 3 to rotate towards the fourth rotating direction.

Because the second arc surface 321 and the inner wall surface of the second installation channel 22 are located on the same circumference, the second rotating shaft 4 can rotate in the second installation channel 22, the wrench 8 can rotate the second rotating shaft 4 along the first rotation direction, and the torsion spring 7 compresses and stores energy in the rotation process of the second rotating shaft 4.

With reference to fig. 1, 2, 6 to 8 and 14, the second rotating shaft 4 is rotated 45 degrees in the first rotating direction from the position shown in fig. 3 to 5, and the rotating base 1 is located between the working position and the position to be used. At this time, the first recess 41 is located at the second position and the first recess 41 faces the Z-axis positive direction; when the first concave portion 41 is located at the second position, the first arc surface 441 and the inner wall surface of the shaft sleeve 5 are located on the same circumference, the outer periphery of the second rotating shaft 4 is not overlapped with the first mounting passage 21, the first rotating shaft 3 can rotate in the fourth rotating direction in the first mounting passage 21, when the second concave portion 32 leaves the second position and the third concave portion 33 does not rotate to the second position, the outer periphery of the second connecting portion 35 is overlapped with the second mounting passage 22, the second outer peripheral portion 36 is in clearance fit with the first arc surface 441, and the second outer peripheral portion 36 limits the second rotating shaft 3 from rotating in the third rotating direction and the first rotating direction.

With reference to fig. 1, 2, 9 to 11 and 14, at this time, the rotating base 1 rotates 90 degrees from the working position to the position to be used along the second rotating direction, the third concave portion 33 is located at the second position, the third arc surface 331 of the third concave portion 33 and the inner wall surface of the second installation channel 22 are located at the same circumference, the periphery of the second connecting portion 35 and the second installation channel 22 are not overlapped, the second rotating shaft 4 can rotate in the second installation channel 22 along the third rotating direction, at this time, the wrench 8 is loosened, the torsion spring 7 releases stored energy, and after the second rotating shaft 4 rotates 45 degrees in the third rotating direction in the second installation channel 22, the first concave portion 41 leaves the second position and returns to the first position; when the first recess 41 returns to the first position, the outer periphery of the second rotating shaft 4 overlaps the first mounting passage 21, and the first outer peripheral portion 43 is in clearance fit with the third recess 33, the first outer peripheral portion 43 restricts the first rotating shaft 3 from rotating in the second rotating direction and the fourth rotating direction.

The utility model discloses an aim auto-lock upset support of utensil, make through the locking structure between first pivot 3 and the second pivot 4 and rotate seat 1 at operating position and treat the position of use remain stable, and owing to remove the locking and must rotate second pivot 4, consequently, the auto-lock upset support of utensil is aimed at has more stable locking effect, be applicable to the use scene of jolting and vibration more, the first concave part 41 that has specific radian, second concave part 32 and third concave part 33 make first pivot 3 and the 4 clearance fit of second pivot under the locking state, it can not all produce when operating position and treat the position of use and rock to rotate seat 1. The second rotating shaft 4 can automatically reset after the rotating seat 1 rotates to the designated position due to the arrangement of the torsion spring 7; the cooperation of the limiting member and the sliding slot 81 can prevent the second rotating shaft 4 from rotating excessively.

In other embodiments, the first mounting channel is not provided with a shaft sleeve, the second connecting part is directly mounted in the first mounting channel, and the second connecting part is rotatably connected with the base. When the first concave part is located at the second position, the first concave part faces the Z-axis forward direction, and the first cambered surface and the inner wall surface of the first mounting channel are located on the same circumference.

Finally, it should be emphasized that the above-described embodiments are merely preferred examples of the present invention, and are not intended to limit the invention, as those skilled in the art will appreciate that various changes and modifications may be made, and any and all modifications, equivalents, and improvements made, while remaining within the spirit and principles of the present invention, are intended to be included within the scope of the present invention.

Claims (10)

1. The utility model provides an auto-lock upset support of sighting device, includes the base, rotates seat and first pivot, the base includes the first installation passageway that sets up along the first direction, first pivot includes first connecting portion and second connecting portion, first connecting portion with rotate seat fixed connection, the rotatable setting of second connecting portion in the first installation passageway, its characterized in that:

the base further comprises a second mounting channel arranged along a second direction, and the second mounting channel is communicated with the first mounting channel;

the self-locking overturning bracket of the sighting telescope further comprises a second rotating shaft, the second rotating shaft comprises a first concave part, the second rotating shaft is positioned in the second mounting channel, the first concave part can rotate to a second position from a first position along a first rotating direction, and the second position is positioned at the communication position of the first mounting channel and the second mounting channel;

the second connecting part comprises a second concave part which can rotate to the second position along a second rotating direction when the first concave part is positioned at the second position;

when the second recess is located at the second position, the first recess can rotate to the first position along a third rotation direction;

when the second recess is located at the second position and the first recess is located at the first position, the outer peripheral portion of the second rotating shaft is in limited fit with the second recess in a second rotating direction and a fourth rotating direction;

the first rotational direction is opposite to the third rotational direction, and the second rotational direction is opposite to the fourth rotational direction.

2. The self-locking flip bracket of the sight of claim 1, wherein:

the first recess comprises a first arc and/or the second recess comprises a second arc.

3. The self-locking flip bracket of the sight of claim 2, wherein:

the diameter of the first cambered surface is equal to the outer diameter of the second connecting portion, and/or the diameter of the second cambered surface is equal to the diameter of the second rotating shaft.

4. The self-locking flip bracket of the sight of claim 3, wherein:

when the first concave part is located at the second position, the first cambered surface and the inner wall surface of the first mounting channel are located on the same circumference, and/or when the second concave part is located at the second position, the second cambered surface and the inner wall surface of the second mounting channel are located on the same circumference.

5. The self-locking flip bracket of the sight of any one of claims 2 to 4, wherein:

the second connecting portion further includes a third recess portion rotatable in the fourth rotational direction to the second position when the first recess portion is located at the second position;

when the third recess is located at the second position, the first recess may rotate in the third rotation direction to the first position, and when the third recess is located at the second position and the first recess is located at the first position, the outer circumferential portion of the second rotation shaft may be in limited engagement with the second recess in the second rotation direction and the fourth rotation direction.

6. The self-locking flip bracket of the sight of claim 5, wherein:

when the second concave part is positioned at the second position, the rotating seat is positioned at a working position;

when the third concave part is located at the second position, the rotating seat is located at a position to be used.

7. The self-locking flip bracket of the sight of claim 5, wherein:

the third concave part comprises a third cambered surface, and the diameter of the third cambered surface is equal to the outer diameter of the second rotating shaft;

the center line of the third cambered surface is perpendicular to the center line of the second cambered surface.

8. The self-locking flip bracket of the sight of any one of claims 1 to 4, wherein:

the self-locking overturning bracket of the sighting telescope further comprises an elastic piece, and two ends of the elastic piece are respectively connected with the base and the second rotating shaft;

when the second concave part rotates from the second position to the first position, the elastic part stores energy.

9. The self-locking flip bracket of the sight of any one of claims 1 to 4, wherein:

the self-locking overturning bracket of the sighting telescope comprises a spanner;

the wrench is connected to the extending end part of the second rotating shaft and comprises a sliding groove;

the base is provided with the locating part, the locating part is located in the spout, the locating part with the spout is spacing cooperation in first direction of rotation, and/or, the locating part with the spout is spacing cooperation in the third direction of rotation.

10. The self-locking flip bracket of the sight of any one of claims 1 to 4, wherein:

the self-locking overturning bracket of the sighting telescope further comprises a shaft sleeve, and the shaft sleeve is positioned between the second connecting part and the base;

the bushing includes a notched portion that is located in the second position.

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