Projection support facilitating cradle head swing adjustment

Abstract

The utility model discloses a projection support facilitating cradle head swing adjustment, which comprises a support body, a cradle head mounting seat is rotatably arranged through a first pivot part, one of the cradle head mounting seat and the support body is provided with a clutch part capable of axially moving along the first pivot part, and the other one is provided with a combination part opposite to the clutch part. One of the clutch part and the combination part is provided with a plurality of positioning grooves distributed circumferentially, the bottom wall of each positioning groove is in a circular arc shape, the other one of the clutch part and the combination part is provided with a positioning convex part matched with the positioning groove, and the clutch part is connected with an elastic part driving the positioning convex part to be combined with one positioning groove of the elastic part. And when the holder mounting seat rotates relative to the bracket body, the positioning convex part can move along the bottom wall of the positioning groove so as to be switched into the other positioning groove, so that the holder mounting seat and the bracket body are kept at another relative angle position, the swinging adjustment of the holder is facilitated, and the locking force on the holder is stable.

Description

Technical Field

[0001] The utility model relates to a projection bracket which is beneficial to the swing adjustment of a pan head. Background Art

[0002] In the related art, in order to set up a projection device, a projection bracket is usually required to install the projection device. The projection bracket includes a bracket body and a pan / tilt provided on the bracket body for installing the projection device. In order to achieve the head-up angle of shooting or projection of the projection device, the pan / tilt is generally swung up and down relative to the bracket body by fastening bolts inserted through the bracket body, and the angle position of the pan / tilt is unlocked or locked by screwing the fastening bolts. This structure is inconvenient when adjusting the swing angle of the pan / tilt. In addition, the fastening bolts extend out of the bracket body, which can easily cause the pan / tilt to loosen due to accidental touch. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a projection bracket which is conducive to the swing adjustment of the pan head and has a stable locking force on the pan head.

[0004] According to an embodiment of the utility model, a projection bracket that is conducive to the swing adjustment of the pan-tilt head includes: a bracket body, a pan-tilt head mounting seat is rotatably arranged on the bracket body through a horizontally arranged first pivot member, the pan-tilt head mounting seat is used to connect the projection device, one of the pan-tilt head mounting seat and the bracket body is provided with a clutch member that can move along the axial direction of the first pivot member, the other of the pan-tilt head mounting seat and the bracket body is provided with a coupling portion arranged opposite to the clutch member, one of the clutch member and the coupling portion is provided with a plurality of positioning grooves distributed around the circumference of the first pivot member, along the arrangement direction of the plurality of positioning grooves, the bottom wall of the positioning groove is in an arc shape, the clutch member and the other of the coupling portion are provided with a positioning convex portion that matches the positioning groove, the clutch member is connected to an elastic member that drives the positioning convex portion to combine with one of the positioning grooves, and when the pan-tilt head mounting seat rotates relative to the bracket body, the positioning convex portion can move along the bottom wall of the positioning groove to switch to the other positioning groove.

[0005] A projection bracket that facilitates pan / tilt swing adjustment according to an embodiment of the utility model has at least the following beneficial effects:

[0006] The clutch moves close to the coupling part under the action of the elastic part, thereby driving the positioning protrusion to engage with one of the positioning grooves, so that the gimbal mounting seat and the bracket body can be maintained at a certain relative angle position. When a certain magnitude of torque is applied to the gimbal mounting seat, the gimbal mounting seat can rotate relative to the bracket body. During this process, the positioning protrusion moves along the bottom wall of the positioning groove to the notch and disengages from the positioning groove, and then enters another positioning groove, thereby maintaining the gimbal mounting seat and the bracket body at another relative angle position, which is beneficial to the swing adjustment of the gimbal and stabilizes the locking force of the gimbal.

[0007] In some embodiments of the utility model, the combining portion is a first contact surface provided on the gimbal mounting base and perpendicular to the first pivot member, the positioning protrusion is protrudingly formed on the first contact surface, the clutch member is provided with a second contact surface parallel to the first contact surface, a plurality of positioning grooves are recessed inwardly to form on the second contact surface, and when the elastic member drives the positioning protrusion to engage with one of the positioning grooves, the second contact surface abuts against the first contact surface.

[0008] In some embodiments of the utility model, two positioning protrusions are provided, the two positioning protrusions are symmetrical about the axial center of the first pivot member, an even number of the positioning grooves are evenly spaced, and the two positioning grooves symmetrical about the axial center of the first pivot member constitute a group of positioning grooves matching the two positioning protrusions.

[0009] In some embodiments of the utility model, the gimbal mounting seat has a sleeve portion, and the two ends of the sleeve portion are respectively provided with a circular first contact surface, and the two first contact surfaces are arranged back to back. The bracket body is provided with two sleeve portions respectively connected to the two ends of the sleeve portion, and the elastic member and the clutch member are arranged in the sleeve portion, and the clutch member is provided with an axial hole coaxial with the sleeve portion, and the first pivot member is passed through the sleeve portion, the sleeve portion and the axial hole to rotatably connect the gimbal mounting seat and the bracket body.

[0010] In some embodiments of the present invention, the first pivot member includes a screw rod and a nut matched with the screw rod, the head of the screw rod is located in one of the sleeve portions, the screw rod passes through the two axial holes and the shaft sleeve portion to extend into the other sleeve portion, the nut is threadedly connected to an end of the screw rod away from the head of the screw rod and is confined in the corresponding sleeve portion, the elastic member is a spring member passing through the screw rod, and the two ends of the spring member respectively abut between the clutch member and the head of the screw rod, or the two ends of the spring member respectively abut between the clutch member and the nut.

[0011] In some embodiments of the present invention, the internal channel of the sleeve portion is provided through, and the screw rod can rotate relative to the nut to compress or extend the length dimension of the spring member.

[0012] In some embodiments of the utility model, the inner circumferential wall of the sleeve portion is provided with a guide groove parallel to the first pivot member, the outer circumferential contour shape of the clutch member matches the inner circumferential wall of the sleeve portion, and the outer circumferential wall of the clutch member is provided with a guide slider that slides back and forth in the guide groove.

[0013] In some embodiments of the utility model, the bracket body includes a base, the base is rotatably connected to a support frame via a horizontally placed second pivot member, the gimbal mounting seat is rotatably disposed on the support frame via the first pivot member, and the support frame can be rotated around the second pivot member to be folded on the side of the base or unfolded relative to the base.

[0014] In some embodiments of the utility model, the base is a U-shaped bracket, the support frame is rotatably connected between the two ends of the U-shaped bracket, the two second pivot members are respectively passed through the two ends of the U-shaped bracket and the corresponding side walls of the support frame, and the support frame can be rotatably stored in the internal area of ​​the U-shaped bracket.

[0015] In some embodiments of the present invention, the end of the support frame away from the second pivot member has a hollow groove, and the gimbal mounting seat can be rotated around the first pivot member and accommodated in the hollow groove.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 It is a structural schematic diagram of an embodiment of the projection bracket that is conducive to the swing adjustment of the pan / tilt head of the utility model when it is stored;

[0019] Figure 2 for Figure 1 The embodiment is a schematic diagram of a state when it is unfolded;

[0020] Figure 3 for Figure 1 An internal cross-sectional schematic diagram of an embodiment;

[0021] Figure 4 for Figure 1A schematic diagram of a partial structural decomposition of an embodiment;

[0022] Figure 5 for Figure 4 Schematic diagram from another perspective. DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] In the description of the present invention, it should be understood that descriptions involving orientation, such as the orientations or positional relationships indicated by terms such as "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside", etc., are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] See also Figures 1 to 5The embodiment of the utility model is a projection bracket that is conducive to the swing adjustment of the pan-tilt head, comprising: a bracket body 100, a pan-tilt head mounting seat 300 is rotatably arranged on the bracket body 100 through a horizontally arranged first pivot member 200, the pan-tilt head mounting seat 300 is used to connect the projection device, one of the pan-tilt head mounting seat 300 and the bracket body 100 is provided with a clutch member 400 that can move along the axial direction of the first pivot member 200, the other of the pan-tilt head mounting seat 300 and the bracket body 100 is provided with a coupling portion that is arranged opposite to the clutch member 400, and one of the clutch member 400 and the coupling portion is provided with multiple There are positioning grooves 410 distributed around the circumference of the first pivot member 200, and the bottom wall of the positioning groove 410 is arc-shaped along the arrangement direction of the multiple positioning grooves 410. The clutch member 400 and the other of the coupling parts are provided with a positioning protrusion 320 that cooperates with the positioning groove 410. The clutch member 400 is connected to an elastic member 500 that drives the positioning protrusion 320 to combine with one of the positioning grooves 410. When the gimbal mounting seat 300 rotates relative to the bracket body 100, the positioning protrusion 320 can move along the bottom wall of the positioning groove 410 to switch to another positioning groove 410.

[0028] The clutch 400 moves close to the joint under the action of the elastic member 500, thereby driving the positioning protrusion 320 to engage with one of the positioning grooves 410, so that the gimbal mounting seat 300 and the bracket body 100 can be maintained at a certain relative angle position. When a certain magnitude of torque is applied to the gimbal mounting seat 300, the gimbal mounting seat 300 can rotate relative to the bracket body 100. During this process, the positioning protrusion 320 moves along the bottom wall of the positioning groove 410 to the notch and disengages from the positioning groove 410. The clutch 400 moves slightly in the direction of compressing the elastic member 500, and then the positioning protrusion 320 enters the other positioning groove 410. The clutch 400 also resets and moves under the action of the elastic member 500, thereby maintaining the gimbal mounting seat 300 and the bracket body 100 at another relative angle position, which is beneficial to the swing adjustment of the gimbal and the locking force of the gimbal is stable. It should be noted that the torque applied by the user to the gimbal mount 300 must be greater than the gravity torque of the projection device acting on the gimbal mount 300 to ensure that the projection device can be stable after installation. According to specific usage needs, elastic parts 500 with different elastic coefficients can be selected to adjust the torque required to be applied to the gimbal mount 300.

[0029] See also Figures 3 to 5In some embodiments of the utility model, the combination portion is a first contact surface 310 provided on the gimbal mounting seat 300 and perpendicular to the first pivot member 200, the positioning protrusion 320 is protrudingly formed on the first contact surface 310, the clutch member 400 is provided with a second contact surface 420 parallel to the first contact surface 310, a plurality of positioning grooves 410 are recessed inwardly formed on the second contact surface 420, and when the elastic member 500 drives the positioning protrusion 320 to engage with one of the positioning grooves 410, the second contact surface 420 abuts against the first contact surface 310. It can be understood that when the user drives the gimbal mounting seat 300 to rotate relative to the bracket body 100, until the positioning protrusion 320 is aligned with one of the positioning grooves 410, under the action of the elastic member 500, the second contact surface 420 abuts against the first contact surface 310, and the positioning protrusion 320 also enters the positioning groove 410. The above structure is conducive to keeping the gimbal mounting seat 300 and the bracket body 100 relatively stable, simple in structure, and low in manufacturing difficulty.

[0030] See also Figures 3 to 5 In some embodiments of the present invention, two positioning protrusions 320 are provided, and the two positioning protrusions 320 are symmetrical about the axial center of the first pivot member 200, and the even number of positioning grooves 410 are evenly spaced, and the two positioning grooves 410 symmetrical about the axial center of the first pivot member 200 constitute a group of positioning grooves that match the two positioning protrusions 320. It can be understood that the two positioning protrusions 320 can simultaneously face the two positioning grooves 410 of a positioning groove group, avoiding the problem of unbalanced force or insufficient force when a single positioning protrusion 320 and the positioning groove 410 are combined, and improving the stability of the projection bracket after adjusting the angle position of the pan / tilt mounting seat 300.

[0031] See also Figure 4 and Figure 5In some embodiments of the utility model, the gimbal mounting seat 300 has a sleeve portion 330, and a circular first contact surface 310 is respectively provided at both ends of the sleeve portion 330, and the two first contact surfaces 310 are arranged opposite to each other. The bracket body 100 is provided with two sleeve portions 130 respectively connected to the two ends of the sleeve portion 330, the elastic member 500 and the clutch member 400 are arranged in the sleeve portion 130, and the clutch member 400 is provided with an axial hole 430 coaxial with the sleeve portion 330. The first pivot member 200 is penetrated by the sleeve portion 130, the sleeve portion 330 and the axial hole 430 to make the gimbal mounting seat 300 and the bracket body 100 rotatably connected. When the gimbal mounting base 300 rotates around the first pivot member 200 relative to the bracket body 100, the clutch members 400 located at both ends of the shaft sleeve portion 330 respectively leave the original positioning grooves 410. At this time, the two clutch members 400 move away from each other and compress their respective elastic members 500, and the first contact surface 310 still maintains contact with the end surface of the sleeve portion 130. During the rotation of the gimbal mounting base 300, the gimbal mounting base 300 will not move relative to the bracket body 100 along the extension direction of the first pivot member 200.

[0032] See also Figure 3 and Figure 4 In some embodiments of the utility model, the first pivot member 200 includes a screw rod 210 and a nut 220 matched with the screw rod 210, the head of the screw rod 210 is located in a sleeve portion 130 thereof, the screw rod 210 passes through two axial holes 430 and the shaft sleeve portion 330 to extend into another sleeve portion 130, the nut 220 is threadedly connected to one end of the screw rod 210 away from the head of the screw rod 210 and is confined in the corresponding sleeve portion 130, that is, the nut 220 cannot rotate relative to the sleeve portion 130, the elastic member 500 is a spring member passing through the screw rod 210, and the two ends of the spring member respectively abut between the clutch member 400 and the head of the screw rod 210, or the two ends of the spring member respectively abut between the clutch member 400 and the nut 220. The first pivot member 200 of the above structure can not only rotatably connect the pan / tilt mounting seat 300 and the bracket body 100 together, but also realize the installation and guidance of the elastic member 500, and also improve the structural compactness of the product, which is conducive to miniaturized design.

[0033] In some embodiments of the present invention, the internal channel of the sleeve portion 130 is set through, and the screw rod 210 can rotate relative to the nut 220 to compress or extend the length of the spring member. It should be noted that in this embodiment, by tightening the screw rod 210, the distance between the head of the screw rod 210 and the nut 220 can be shortened, thereby increasing the thrust of the spring member acting on the clutch member 400, and by loosening the screw rod 210, the distance between the head of the screw rod 210 and the nut 220 can be extended, thereby reducing the thrust of the spring member acting on the clutch member 400, and the weight of the projection device to be adapted and adjusted can be expanded to expand the scope of application.

[0034] See also Figure 4 and Figure 5 In some embodiments of the utility model, the inner wall of the sleeve portion 130 is provided with a guide groove 131 parallel to the first pivot member 200, the outer peripheral contour shape of the clutch 400 matches the inner wall of the sleeve portion 130, and the outer peripheral wall of the clutch 400 is provided with a guide slider 440 that slides back and forth in the guide groove 131; the above structure plays a sliding guiding role in the reciprocating motion of the clutch 400.

[0035] See also Figure 1 and Figure 2 In some embodiments of the present invention, the support body 100 includes a base 110, the base 110 is rotatably connected to the support frame 120 via a horizontally placed second pivot member 600, the pan / tilt mounting seat 300 is rotatably disposed on the support frame 120 via a first pivot member 200, and the support frame 120 can be rotated around the second pivot member 600 to be folded on the side of the base 110 or unfolded relative to the base 110. The support frame 120 and the base 110 constitute the support body 100, and the support frame 120 rotates around the second pivot member 600 to be folded on the side of the base 110 to reduce the storage and packaging volume of the support body 100, which is conducive to packaging and transportation. Of course, it should be noted that the support frame 120 can rotate around the second pivot member 600 to be stable after being unfolded relative to the base 110, for example, it can be fixed by screws, so as to support the projection device.

[0036] See also Figure 1 and Figure 2 In some embodiments of the utility model, the base 110 is a U-shaped bracket, the support frame 120 is rotatably connected between the two ends of the U-shaped bracket, and the two second pivot members 600 are respectively penetrated through the two ends of the U-shaped bracket and the corresponding side walls of the support frame 120. The support frame 120 can be rotatably stored in the internal area of ​​the U-shaped bracket, thereby further reducing the volume of the bracket body 100 when folded and stored, and reducing the cost required for packaging, transportation or storage.

[0037] See also Figure 1 and Figure 2 In some embodiments of the present invention, in order to further reduce the volume of the projection bracket during storage and transportation, the end of the support frame 120 away from the second pivot member 600 has a hollow groove 121, and the pan / tilt mounting seat 300 can rotate around the first pivot member 200 and be stored in the hollow groove 121. At this time, the projection bracket of the present invention is flat as a whole, and the overall thickness is extremely small.

[0038] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0039] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A projection bracket that facilitates pan / tilt swing adjustment, characterized in that: include: A support body (100), wherein a pan-tilt mounting seat (300) is rotatably arranged on the support body (100) via a horizontally arranged first pivot member (200), wherein the pan-tilt mounting seat (300) is used to connect a projection device, wherein one of the pan-tilt mounting seat (300) and the support body (100) is provided with a clutch member (400) movable along the axial direction of the first pivot member (200), wherein the other of the pan-tilt mounting seat (300) and the support body (100) is provided with a coupling portion arranged opposite to the clutch member (400), wherein one of the clutch member (400) and the coupling portion is provided with a plurality of fixed positions distributed around the circumference of the first pivot member (200). The invention relates to a plurality of positioning grooves (410), wherein the bottom wall of the positioning groove (410) is in an arc shape along the arrangement direction of the plurality of positioning grooves (410); the clutch (400) and the other of the coupling parts are provided with a positioning protrusion (320) matching with the positioning groove (410); the clutch (400) is connected with an elastic member (500) for driving the positioning protrusion (320) to combine with one of the positioning grooves (410); when the pan / tilt mounting seat (300) rotates relative to the bracket body (100), the positioning protrusion (320) can move along the bottom wall of the positioning groove (410) to switch to another positioning groove (410).

2. A projection bracket that facilitates pan / tilt swing adjustment according to claim 1, characterized in that: The combining portion is a first contact surface (310) provided on the pan / tilt mounting seat (300) and perpendicular to the first pivot member (200); the positioning protrusion (320) is protrudingly formed on the first contact surface (310); the clutch member (400) is provided with a second contact surface (420) parallel to the first contact surface (310); a plurality of positioning grooves (410) are recessed inwardly and formed on the second contact surface (420); when the elastic member (500) drives the positioning protrusion (320) to engage with one of the positioning grooves (410), the second contact surface (420) abuts against the first contact surface (310).

3. The projection bracket that facilitates pan / tilt swing adjustment according to claim 2, characterized in that: Two positioning protrusions (320) are provided, and the two positioning protrusions (320) are symmetrical about the axial center of the first pivot member (200). An even number of positioning grooves (410) are evenly spaced, and the two positioning grooves (410) symmetrical about the axial center of the first pivot member (200) constitute a group of positioning grooves that match the two positioning protrusions (320).

4. The projection bracket that facilitates pan / tilt swing adjustment according to claim 2, characterized in that: The gimbal mounting seat (300) has a shaft sleeve portion (330), and the two ends of the shaft sleeve portion (330) are respectively provided with a circular first contact surface (310), and the two first contact surfaces (310) are arranged opposite to each other. The bracket body (100) is provided with two sleeve portions (130) respectively connected to the two ends of the shaft sleeve portion (330), the elastic member (500) and the clutch member (400) are arranged in the sleeve portion (130), and the clutch member (400) is provided with an axial hole (430) coaxial with the shaft sleeve portion (330), and the first pivot member (200) is penetrated by the sleeve portion (130), the shaft sleeve portion (330) and the axial hole (430) so that the gimbal mounting seat (300) and the bracket body (100) are rotatably connected.

5. The projection bracket that facilitates pan / tilt swing adjustment according to claim 4, characterized in that: The first pivot member (200) comprises a screw rod (210) and a nut (220) matched with the screw rod (210); the head of the screw rod (210) is located in one of the sleeve portions (130); the screw rod (210) passes through the two shaft holes (430) and the shaft sleeve portion (330) to extend into the other sleeve portion (130); the nut (220) is threadedly connected to an end of the screw rod (210) away from the head of the screw rod (210) and is confined in the corresponding sleeve portion (130); the elastic member (500) is a spring member passing through the screw rod (210); two ends of the spring member respectively abut between the clutch member (400) and the head of the screw rod (210), or two ends of the spring member respectively abut between the clutch member (400) and the nut (220).

6. The projection bracket that facilitates pan / tilt swing adjustment according to claim 5, characterized in that: The internal channel of the sleeve portion (130) is arranged to penetrate therethrough, and the screw rod (210) can rotate relative to the nut (220) to compress or extend the length dimension of the spring member.

7. The projection bracket that facilitates pan / tilt swing adjustment according to claim 4, characterized in that: The inner circumferential wall of the sleeve portion (130) is provided with a guide slot (131) parallel to the first pivot member (200), the outer circumferential contour shape of the clutch member (400) matches the inner circumferential wall of the sleeve portion (130), and the outer circumferential wall of the clutch member (400) is provided with a guide slider (440) which slides back and forth in the guide slot (131).

8. The projection bracket that facilitates pan / tilt swing adjustment according to claim 1, characterized in that: The support body (100) includes a base (110), and the base (110) is rotatably connected to a support frame (120) via a transversely placed second pivot member (600). The gimbal mounting seat (300) is rotatably arranged on the support frame (120) via the first pivot member (200), and the support frame (120) can be rotated around the second pivot member (600) to be folded on the side of the base (110) or unfolded relative to the base (110).

9. The projection bracket that facilitates pan / tilt swing adjustment according to claim 8, characterized in that: The base (110) is a U-shaped bracket, and the support frame (120) is rotatably connected between the two ends of the U-shaped bracket. The two second pivot members (600) are respectively penetrated through the two ends of the U-shaped bracket and the corresponding side walls of the support frame (120), and the support frame (120) can be rotatably stored in the internal area of ​​the U-shaped bracket.

10. The projection bracket that facilitates pan / tilt swing adjustment according to claim 9, characterized in that: One end of the support frame (120) away from the second pivot member (600) has a hollow groove (121), and the pan / tilt mounting seat (300) can rotate around the first pivot member (200) and be received in the hollow groove (121).

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