CN212179700U

CN212179700U - Fast-assembling support

Info

Publication number: CN212179700U
Application number: CN202020717318.2U
Authority: CN
Inventors: 林达云
Original assignee: Zhuhai Chunqiu Optical Instruments Co Ltd
Current assignee: Zhuhai Chunqiu Optical Instruments Co Ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2020-12-18
Anticipated expiration: 2030-04-30

Abstract

The utility model provides a fast-assembling support, including base, movable block and check lock lever, the movable block passes through the mobilizable connection of check lock lever in the left surface of base, and the upper surface of base is used for the installation to aim at the utensil, and the lower surface of base is equipped with the recess that opening and upper surface carried on the back mutually, and the length of recess extends to the left surface and the right flank of base, and the maximum width between the relative inner wall of recess is greater than the opening width of recess, the middle section and the recess looks adaptation of check lock lever and embedding recess. This fast-assembling support limits the home range of the check lock pole that adapts to it and imbeds wherein through setting up the inside width of base lower surface and the narrow recess of opening, consequently when fast-assembling support is in non-locking state, the check lock pole is by the recess restriction reciprocate, is difficult for producing vibration from top to bottom to effectively prevent to become flexible with the threaded connection spare that the check lock pole is connected, and then realize that fast-assembling support can all lock on the guide rail at any time and need not the operator readjust the distance between threaded connection spare and the movable block.

Description

Fast-assembling support

Technical Field

The utility model relates to a sighting device technical field especially relates to a fast-assembling support.

Background

The fast-assembling support has the convenience of quick clamping and locking on the firearm guide rail and is widely applied to aiming device, for example the utility model patent with patent number ZL201521114224.1 discloses a fast-assembling handle structure, including base 100, briquetting 101, pull rod 102, eccentric wheel handle 103 and nut 104, pull rod 102 pass briquetting 101, 100 back in proper order with nut 104 threaded connection, eccentric wheel handle 103 is connected with pull rod 102 is articulated, nut 104 also compresses tightly on the base when locking briquetting 101 on the base through eccentric wheel handle 103. As shown in fig. 1A to 1B, when the eccentric handle 103 releases the pressing block 101 to cause the pressing block 101 to be separated from the base 100, since the pressing block 101 is movable, a portion of the pull rod 102 that is not fixed to the base 100 (e.g., a portion of the pull rod 102 that is connected to the pressing block 101, a middle portion of the pull rod 102, etc.) may be separated from the base 100, so that the pull rod 102 may vibrate up and down easily, and the nut 104 may be loosened to cause the quick-assembly bracket to be unable to be locked on the guide rail again, and the quick-assembly bracket may be locked by readjusting a distance between the nut 104 and the pressing block 101, which may.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a fast-assembling support is provided, it can prevent the check lock lever vibration from top to bottom under non-locking state.

With regard to a fast-assembling support, the utility model discloses the technical scheme who adopts is: the utility model provides a fast-assembling support, includes base, movable block and check lock lever, the movable block passes through the check lock lever mobilizable connect in the left surface of base, the upper surface of base is used for the installation to aim at the utensil, the lower surface of base be equipped with the opening with the recess that the upper surface was carried on the back mutually, just the length of recess to the left surface and the right flank of base extend, maximum width between the relative inner wall of recess is greater than the opening width of recess, the middle section of check lock lever with recess looks adaptation and embedding the recess.

Compared with the prior art, the fast-assembling support limits the moving range of the locking rod which is matched with the fast-assembling support and embedded into the fast-assembling support through the wide inner part and the narrow opening of the fast-assembling support arranged on the lower surface of the base, so that the locking rod can only move along the length direction of the groove, and the locking rod can be limited to move up and down, therefore, when the fast-assembling support is in a non-locking state (namely, the movable block can move), the locking rod is limited to move up and down by the groove and is not easy to vibrate, thereby effectively preventing the threaded connecting piece connected with the locking rod from loosening, ensuring that the distance between the threaded connecting piece and the movable block is unchanged in the locking state, further realizing that the fast-assembling support can be locked on the guide rail at any time without an operator readjusting the distance between the threaded connecting.

Furthermore, a stopping part matched with the guide rail is arranged in the middle section of the locking rod, and the stopping part extends out of the groove.

Furthermore, an elastic piece is arranged between the movable block and the left side face of the base, and two ends of the elastic piece are respectively abutted against the base and the movable block.

Furthermore, fast-assembling support still includes eccentric wheel handle and threaded connection spare, the end of check lock pole pass through threaded connection spare with the base is connected, the head end of check lock pole pass through the eccentric wheel handle with the movable block is connected.

In another embodiment, the fast-assembling support further comprises an eccentric wheel handle and a threaded connecting piece, the tail end of the locking rod is connected with the movable block through the threaded connecting piece, and the head end of the locking rod is connected with the base through the eccentric wheel handle.

Furthermore, a dish-shaped elastic sheet is arranged between the movable block and the eccentric wheel handle, and the outer edge of the eccentric wheel handle is connected with the movable block through the dish-shaped elastic sheet.

In another embodiment, a disk-shaped elastic sheet is arranged between the base and the eccentric wheel handle, and the outer edge of the eccentric wheel handle is connected with the base through the disk-shaped elastic sheet.

Furthermore, the eccentric wheel handle is hinged with the head end of the locking rod through a pin shaft, and the outer edge of the eccentric wheel handle is in contact connection with the movable block.

In another embodiment, the eccentric wheel handle is hinged with the head end of the locking rod through a pin shaft, and the outer edge of the eccentric wheel handle is in contact connection with the base.

Furthermore, the head end of the locking rod is hinged to the eccentric wheel handle through a pin shaft, the movable block is provided with at least one extended flat plate perpendicular to the central line of the pin shaft, and the extended flat plate covers the outer edge of the eccentric wheel handle to prevent the outer edge of the eccentric wheel from rotating around the central line of the locking rod.

In another embodiment, the head end of the locking rod is hinged to the eccentric wheel handle through a pin shaft, the base is provided with at least one outward extending flat plate perpendicular to the center line of the pin shaft, and the outward extending flat plate covers the outer edge of the eccentric wheel handle to prevent the outer edge of the eccentric wheel from rotating around the center line of the locking rod.

Further, a contact surface of threaded connection spare is equipped with the bar groove that a plurality of circumference was arranged, the length in bar groove is followed threaded connection spare's turning radius extends, the base is equipped with an orientation the flexible post in bar groove works as threaded connection spare support in when the right flank of base, flexible post inserts in the bar groove.

In another embodiment, a contact surface of the threaded connector is provided with a plurality of strip-shaped grooves which are circumferentially arranged, the length of each strip-shaped groove extends along the rotating radius of the threaded connector, the movable block is provided with a telescopic column facing the strip-shaped grooves, and when the threaded connector abuts against the right side of the base, the telescopic columns are inserted into the strip-shaped grooves.

Furthermore, the periphery of the threaded connecting piece is provided with a plurality of concave parts which are arranged along the periphery, the base is provided with convex parts which are inserted into the concave parts, and when the threaded connecting piece abuts against the base, the convex parts and the concave parts are in contact connection.

In another embodiment, the periphery of the threaded connector is provided with a plurality of circumferentially arranged recesses, the movable block is provided with protrusions for inserting into the recesses, and the protrusions and the recesses are in contact connection when the threaded connector abuts against the movable block.

Furthermore, the threaded connection piece is a polygonal threaded connection piece, the base is provided with a convex column with a plane, and when the threaded connection piece abuts against the base, the plane is in contact connection with any side of the threaded connection piece.

In another embodiment, the threaded connector is a polygonal threaded connector, the movable block is provided with a convex column with a plane, and when the threaded connector abuts against the movable block, the plane is in contact connection with any side of the threaded connector.

Further, the cross section of the groove according to any one of the above aspects is one of a polygon and an arc.

Preferably, the polygon is one of a trapezoid or a "T" shape.

Drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the drawings of the embodiments will be briefly described below, and it should be apparent that the drawings in the following description only relate to some embodiments of the present invention, and are not intended to limit the present invention.

FIGS. 1A-1B are schematic structural views of a conventional quick-mount bracket in an unlocked state;

FIG. 2 is a top view of the quick mount bracket according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

FIG. 4 is an enlarged view at B of FIG. 3;

FIG. 5 is an exploded perspective view of the quick mount bracket according to an embodiment of the present invention;

FIG. 6 is a perspective view of a quick mount bracket according to another embodiment of the present invention;

FIG. 7 is an exploded perspective view of the quick mount bracket according to another embodiment of the present invention;

fig. 8 is a schematic perspective view of an eccentric wheel handle and a movable block with an extended plate according to an embodiment of the present invention;

fig. 9 is a perspective view of an eccentric wheel handle of another embodiment of the present invention assembled with a base having an outwardly extending plate;

FIGS. 10A-10C are schematic cross-sectional views of a base according to an embodiment of the present invention;

fig. 11A to 11C are schematic structural diagrams of looseness prevention of the threaded connector according to an embodiment of the present invention.

Detailed Description

It should be noted that the terms "first," "second," and the like as used herein do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The utility model discloses in use "upper", "lower", "left", "right", "preceding", "back", "top", "end" etc. only are used for showing relative position relation, after the absolute position of the object of being described changes, then this relative position relation also can change correspondingly.

As described in the background section, the conventional fast-assembling bracket presses the pressing block 101 on the base 100 through the eccentric wheel handle 103, but when the pressing block 101 is released by the eccentric wheel handle 103 and the pressing block 101 is separated from the base 100, the pull rod 102 is easily vibrated up and down, so that the nut 104 is loosened, and the fast-assembling bracket cannot be locked on the guide rail again, which brings inconvenience to a user, as shown in fig. 1A to 1B, wherein fig. 1A is a schematic structural view of the conventional fast-assembling bracket in which the pull rod 102 is not yet displaced in the up-down direction in an unlocked state, and fig. 1B is a schematic structural view of the conventional fast-assembling bracket in which the pull rod 102 is displaced upward in an unlocked state.

For better description of the technical solution of the present invention, the embodiment of the quick-mounting bracket provided by the present invention will be described with reference to fig. 2 to 11C. It should be noted that, the quick-mounting bracket described in this embodiment refers to a bracket that can be quickly mounted on and dismounted from a firearm guide rail.

As shown in fig. 2 to 5, an embodiment of the present invention provides a quick-mounting bracket, including a base 1, a movable block 2, a locking rod 3, an eccentric wheel handle 103 and a threaded connector 5, wherein an upper surface 1a of the base 1 is used for mounting accessories such as an aiming tool, a lower surface 1b of the base 1 is provided with a groove 11 having an opening opposite to the upper surface 1a, the length of the groove 11 extends towards a left side surface 1c and a right side surface 1d of the base 1, a maximum width L1 between opposite inner walls of the groove 11 is greater than an opening width L2 of the groove 11, the right side surface 1d of the base 1 is provided with a first connecting portion 12 for being fastened on one side of a guide rail (e.g. the right side of the guide rail), the movable block 2 is movably connected to the left side surface 1c of the base 1, and the movable block 2 is provided with a second connecting portion 21 for being fastened on the other side of the guide rail (e.g. the left side, the tail end of the locking rod 3 is connected with the right side face 1d of the base 1 through a threaded connecting piece 5, the head end of the locking rod 3 is hinged to the eccentric wheel handle 103 through a pin shaft 6, the eccentric wheel outer edge 103a of the eccentric wheel handle 103 is in contact connection with the movable block 2, and the middle section of the locking rod 3 is matched with the groove 11 and embedded into the groove 11. The eccentric wheel handle 103 is rotated forward to apply pressing force to the movable block 2, the movable block 2 is pressed on the left side face 1c of the base 1, the first connecting part 12 and the second connecting part 21 are respectively clamped on two sides of the guide rail, and at the moment, the quick-assembly bracket is in a locking state; the reverse rotation of the eccentric wheel handle 103 reduces the pressing force exerted on the movable block 2, so that the movable block 2 is disengaged from the base 1, and the second connecting portion 21 is also disengaged from the left side of the guide rail, so that the quick-mount bracket can be removed from the guide rail, which is in the unlocked state. Since the maximum width L1 inside the groove 11 is greater than the width L2 of the opening (for example, as shown in fig. 4), the locking rod 3 inserted therein can be prevented from being separated from the opening of the groove 11, so that in the non-locking state, the locking rod 3 can only move along the length direction of the groove 11 and cannot move up and down, and thus no vibration is generated, and the threaded connection 5 connected to the locking rod 3 cannot be loosened.

As shown in fig. 6 and 7, in another embodiment, the difference from the above embodiment is that: the tail end of the locking rod 3 is connected with the movable block 2 through a threaded connecting piece 5, the head end of the locking rod 3 is hinged with the eccentric wheel handle 103 through a pin shaft 6, and the eccentric wheel outer edge 103a of the eccentric wheel handle 103 is in contact connection with the right side surface 1d of the base 1.

Compared with the prior art, the fast-assembling support limits the moving range of the locking rod 3 which is matched with the fast-assembling support and is embedded into the fast-assembling support through the groove 11 which is arranged on the lower surface 1b of the base 1 and has a wide inner part and a narrow opening, so that the locking rod 3 can only move along the length direction of the groove 11, and the locking rod 3 is limited to move up and down, therefore, when the fast-assembling support is in a non-locking state (namely, the movable block 2 can move), the locking rod 3 is limited to move up and down by the groove 11, vibration is not easy to generate, the threaded connecting piece 5 connected with the locking rod 3 is effectively prevented from loosening, the distance between the threaded connecting piece 5 and the movable block 2 is ensured to be unchanged in a locking state, the fast-assembling support can be locked on a guide rail at any time without an operator to readjust the distance between the threaded connecting piece 5 and the.

As shown in fig. 3 and 4, in order to prevent the quick mount from being displaced in the direction of the axis of the gun barrel by the recoil when the quick mount is fired, in this embodiment, the middle section of the locking lever 3 is provided with a stop 31 adapted to the guide rail, and the stop 31 protrudes out of the groove 11. The firearm guides are usually picatinny guides, which are formed by machining a row of uniform transverse grooves in the longitudinal guides, into which stops 31 are placed when the quick mount is clamped to the firearm guides, thereby preventing the quick mount from moving in the direction of the axis of the barrel.

As shown in fig. 5, in order to enable the movable block 2 to be quickly separated from the base 1 when the quick-mount bracket is detached from the guide rail, in this embodiment, an elastic member 8 is disposed between the movable block 2 and the left side surface 1c of the base 1, and two ends of the elastic member 8 respectively abut against the base 1 and the movable block 2. The movable block 2 can be pressed on the left side surface 1c of the base 1 by rotating the eccentric wheel handle 103 in the forward direction, the elastic piece 8 is compressed at the moment, after the pressing force applied to the movable block 2 is reduced by rotating the eccentric wheel handle 103 in the reverse direction, the movable block 2 can be quickly separated from the base 1 under the elastic force of the elastic piece 8, and therefore the quick-assembly support can be moved away from the guide rail. Preferably, the elastic member 8 is a spring.

As shown in fig. 5, in order to make the eccentric wheel handle 103 not easily loose in the locked state, in this embodiment, a disk spring 7 is disposed between the movable block 2 and the eccentric wheel handle 103, and an eccentric wheel outer edge 103a of the eccentric wheel handle 103 is connected to the movable block 2 through the disk spring 7. In the locked state, the pressing force applied by the eccentric wheel handle 103 acts on the movable block 2 through the disc-shaped elastic sheet 7, and the disc-shaped elastic sheet 7 deforms and generates a reaction force applied to the eccentric wheel outer edge 103a of the eccentric wheel handle 103, so that the eccentric wheel handle 103 is tensioned, and thus vibration is not easily generated.

As shown in fig. 7, in another embodiment, the difference from the above embodiment is that: a disk-shaped elastic sheet 7 is arranged between the base 1 and the eccentric wheel handle 103, and the eccentric wheel outer edge 103a of the eccentric wheel handle 103 is connected with the base 1 through the disk-shaped elastic sheet 7.

As shown in fig. 8, in order to prevent the eccentric handle 103 from rotating around the center line of the locking rod 3 when rotating, so that the eccentric outer edge 103a cannot be pressed uniformly against the surface of other parts, in this embodiment, the head end of the locking rod 3 is hinged to the eccentric handle 103 through a pin 6, the movable block 2 is provided with at least one extended flat plate 22 perpendicular to the center line of the pin 6, and the extended flat plate 22 covers the eccentric outer edge 103a of the eccentric handle 103 to prevent the eccentric outer edge 103a from rotating around the center line of the locking rod 3, so that the eccentric handle 103 can only rotate around the center line of the pin 6. Preferably, the two overhanging plates 22 are arranged on opposite sides of the eccentric handle 103.

As shown in fig. 9, in another embodiment, the difference from the above embodiment is that: the overhanging plate 22 is disposed on the base 1, and the overhanging plate 22 covers the outer edge 103a of the eccentric handle 103 to prevent the outer edge 103a from rotating around the center line of the locking rod 3, so that the eccentric handle 103 can only rotate around the center line of the pin 6.

In this embodiment, the locking modes of the threaded connection 5 in the locked state and the unlocked state are as follows:

fig. 11A is the decomposition sketch map of threaded connection spare 5 and the assembly of base 1, like the first locking mode shown in fig. 11A, a contact surface of threaded connection spare 5 is equipped with the bar groove 51 that a plurality of circumference was arranged, the length of bar groove 51 is followed the turning radius of threaded connection spare 5 extends, the right flank 1d of base 1 is equipped with an orientation the flexible post 12 in bar groove 51, works as threaded connection spare 5 support in when the right flank 1d of base 1, flexible post 12 inserts in the bar groove 51. In a locking state, the threaded connecting piece 5 is tightly pressed on the base 1, the base 1 applies reaction force to the threaded connecting piece 5, the threaded connecting piece 5 can be prevented from loosening, and meanwhile, the telescopic column 12 is inserted into the strip-shaped groove 51, so that the threaded connecting piece 5 can be prevented from rotating; for the quick-assembly support with the elastic element 8 between the movable block 2 and the base 1, in the unlocked state, the reaction force applied to the threaded connecting element 5 by the base 1 disappears, but the threaded connecting element 5 still abuts against the base 1 under the action of the elastic element 8, and at this time, the telescopic column 12 still inserts into the strip-shaped groove 51, so that the threaded connecting element 5 can be prevented from rotating. When the distance between threaded connection spare 5 and the movable block 2 needs to be adjusted, promote check lock lever 3 and remove so that flexible post 12 breaks away from bar groove 51 along the length direction of recess 11, can rotate threaded connection spare 5. The contact surface is a plane where the threaded connector 5 is in contact with the base 1 or the movable block 2 during pressing.

In another embodiment, the difference from the above embodiment is that: in the locked state, the threaded connector 5 is pressed against the movable block 2, and therefore the telescopic column 12 is disposed on the side of the movable block 2 facing the threaded connector 5.

Fig. 11B is a front view of the assembly of the screw connector 5 and the base 1, and as a second anti-loose manner shown in fig. 11B, the periphery of the screw connector 5 is provided with a plurality of recesses 52 arranged along the circumference, the right side surface 1d of the base 1 is provided with a convex portion 13 inserted into the recesses 52, and when the screw connector 5 abuts against the right side surface 1d of the base 1, the recesses 52 and the convex portion 13 are in contact connection. In the locking state, the threaded connecting piece 5 is tightly pressed on the base 1, the base 1 applies reaction force to the threaded connecting piece 5, the threaded connecting piece 5 can be prevented from loosening, and meanwhile, the concave part 52 is in contact connection with the convex part 13, so that the threaded connecting piece 5 can be prevented from rotating; in the case of the quick-release support with the elastic element 8 between the movable block 2 and the base 1, in the unlocked state, the reaction force exerted by the base 1 on the threaded connection element 5 disappears, but the threaded connection element 5 is still abutted against the base 1 by the elastic element 8, at which point the recess 52 and the projection 13 remain in contact connection, so that the threaded connection element 5 is prevented from rotating. When the distance between the threaded connector 5 and the movable block 2 needs to be adjusted, the locking rod 3 is pushed to move along the length direction of the groove 11 so as to separate the concave part 52 and the convex part 13, and then the threaded connector 5 can be rotated.

In another embodiment, the difference from the above embodiment is that: in the locked state, the threaded joint 5 is pressed against the movable block 2, and therefore the projection 13 is provided on the surface of the movable block 2 facing the threaded joint 5.

Fig. 11C is a front view of the assembly of the screw connector 5 and the base 1, and as a third anti-loosening manner shown in fig. 11C, the screw connector 5 is a polygonal screw connector, such as a hexagon, and the right side surface 1d of the base 1 is provided with a convex pillar 14 having a plane surface which is in contact connection with any side of the screw connector 5 when the screw connector 5 abuts against the right side surface 1d of the base 1. In a locking state, the threaded connecting piece 5 is tightly pressed on the base 1, the base 1 applies a reaction force to the threaded connecting piece 5, the threaded connecting piece 5 can be prevented from loosening, and meanwhile, the threaded connecting piece 5 can be prevented from rotating by the plane contact connection of any side of the threaded connecting piece 5 and the convex column 14; for the fast-assembling support with the elastic piece 8 arranged between the movable block 2 and the base 1, in the non-locking state, the reaction force applied to the threaded connecting piece 5 by the base 1 disappears, but the threaded connecting piece 5 still abuts against the base 1 under the action of the elastic piece 8, and at the moment, any edge of the threaded connecting piece 5 is still in contact connection with the plane of the convex column 14, so that the threaded connecting piece 5 can be prevented from rotating. When the distance between the threaded connecting piece 5 and the movable block 2 needs to be adjusted, the locking rod 3 is pushed to move along the length direction of the groove 11 so that the threaded connecting piece 5 and the convex column 14 are separated from each other, and then the threaded connecting piece 5 can be rotated.

In another embodiment, the difference from the above embodiment is that: in the locked state, the threaded connector 5 is pressed against the movable block 2, so that the convex column 14 is disposed on the surface of the movable block 2 facing the threaded connector 5.

As shown in fig. 10A to 10C, in the present embodiment, the cross section of the groove 11 is one of a polygon and a circular arc, wherein, one of a trapezoid or a "T" shape is preferred in the polygon to facilitate the processing and manufacturing of the groove 11 and the locking bar 3. It should be noted that the cross section of the groove 11 refers to a section perpendicular to the length direction of the groove 11, such as the section A-A of FIG. 2.

The above description is only a preferred embodiment of the present invention, but the present invention is not limited to the above embodiments, and the technical effects of the present invention should be all included in the protection scope of the present invention as long as the technical effects are achieved by any of the same or similar means.

Claims

1. The utility model provides a fast-assembling support, includes base (1), movable block (2) and check lock lever (3), movable block (2) pass through check lock lever (3) mobilizable connect in the left surface (1c) of base (1), the utensil is taken aim at in upper surface (1a) of base (1) is used for the installation, the lower surface (1b) of base (1) be equipped with the opening with recess (11) that upper surface (1a) carried on the back mutually, just the length of recess (11) to the left surface (1c) and the right flank (1d) of base (1) extend, its characterized in that: the maximum width (L1) between the relative inner walls of the groove (11) is greater than the opening width (L2) of the groove (11), and the middle section of the locking rod (3) is matched with the groove (11) and is embedded into the groove (11).

2. The quick-mount bracket as set forth in claim 1, further comprising: the middle section of the locking rod (3) is provided with a stopping part (31) matched with the guide rail, and the stopping part (31) extends out of the groove (11).

3. The quick-mount bracket as set forth in claim 1, further comprising: the movable block (2) and an elastic piece are arranged between the left side face (1c) of the base (1), and two ends of the elastic piece are respectively abutted against the base (1) and the movable block (2).

4. The quick-mount bracket as set forth in claim 1, further comprising: still include eccentric wheel handle (103) and threaded connection spare (5), the end of check lock pole (3) through threaded connection spare (5) with movable block (2) or one in base (1) is connected, the head end of check lock pole (3) through eccentric wheel handle (103) with movable block (2) or another in the base (1) is connected.

5. The quick-mount bracket as claimed in claim 4, wherein: a disc-shaped elastic sheet (7) is arranged between one of the movable block (2) or the base (1) and the eccentric wheel handle (103), and the outer edge (103a) of the eccentric wheel handle (103) is connected with one of the movable block (2) or the base (1) through the disc-shaped elastic sheet (7).

6. The quick-mount bracket as claimed in claim 4, wherein: the head end of the locking rod (3) is hinged with the eccentric wheel handle (103) through a pin shaft (6), one of the movable block (2) or the base (1) is provided with at least one outward extending plane perpendicular to the central line of the pin shaft (6), and the outward extending plane covers the eccentric wheel outer edge (103a) of the eccentric wheel handle (103) so as to prevent the eccentric wheel outer edge (103a) from rotating around the central line of the locking rod (3).

7. The quick-mount bracket as claimed in claim 4, wherein: a contact surface of threaded connection spare (5) is equipped with bar groove (51) that a plurality of circumference was arranged, the length of bar groove (51) is followed the turning radius of threaded connection spare (5) extends, movable block (2) perhaps one in base (1) is equipped with a orientation the flexible post (12) of bar groove (51), works as threaded connection spare (5) support in movable block (2) perhaps during one in base (1), flexible post (12) insert in bar groove (51).

8. The quick-mount bracket as claimed in claim 4, wherein: the periphery of the threaded connecting piece (5) is provided with a plurality of recesses (52) which are arranged along the circumference, one of the movable block (2) or the base (1) is provided with a convex part (13) which is used for being inserted into the recesses (52), and when the threaded connecting piece (5) abuts against one of the movable block (2) or the base (1), the convex part (13) and the recesses (52) are in contact connection.

9. The quick-mount bracket as claimed in claim 4, wherein: threaded connection spare (5) are polygon threaded connection spare, movable block (2) or one in base (1) is equipped with projection (14) that have a plane, works as threaded connection spare (5) support in movable block (2) or when one in base (1), the plane with any side contact of threaded connection spare (5) is connected.

10. A quick-mount support according to any one of claims 1 to 9, characterised in that: the cross section of the groove (11) is in one of a trapezoid shape, a T shape or a circular arc shape.