Sliding locking mechanism and overturning support

Abstract

The invention provides a sliding locking mechanism and an overturning support. The sliding locking mechanism comprises a guide rail which is provided with at least one row of first positioning holes in the extending direction; the sliding seat is arranged on the guide rail and can slide along the guide rail, at least one first through hole is formed in the sliding seat, and when the sliding seat slides along the guide rail, the first through holes can be sequentially opposite to the first positioning holes; the first locking assembly is arranged on the sliding seat and comprises a first locking piece, and the first locking piece has a locking state that the first locking piece is simultaneously limited in the first positioning hole and the first through hole which are opposite to each other so as to lock the sliding seat on the guide rail, and the first locking piece is separated from the first positioning hole so as to unlock the sliding seat on the guide rail; in the unlocking state, the sliding seat can slide along the guide rail. The gap of the sliding locking mechanism is small, stable and reliable locking can be formed, shaking of the night vision device is avoided, adjustment operation is convenient and fast, one-hand operation can be achieved, and meanwhile the overturning support is light in weight and comfortable to wear.

Description

Technical Field

[0001] The present application belongs to the technical field of brackets, and in particular to a sliding locking mechanism, for example, used on a head-mounted device, and a flip bracket having the sliding locking mechanism. Background Art

[0002] At present, in the fields of military, security, hunting, exploration, etc., night vision goggles, lighting, night vision binoculars, infrared cameras, etc. are generally used to enhance vision in low-light environments or provide visible light, so that users can clearly see the surrounding environment at night or in low light conditions, and enhance the user's field of vision. Such devices are generally worn on the user's head through a headband or various brackets to free the hands. When the bracket is hung on the helmet, in order to enable the user to obtain a comfortable use position, it is necessary to set a moving mechanism and a rotating mechanism on the bracket to drive the device to move and / or rotate, and then adjust the angle of the device and the distance from the user's eyes to achieve a satisfactory use effect.

[0003] The mobile mechanism in the prior art has a large gap, which makes it difficult to form a stable and reliable lock, which easily causes shaking of equipment such as night vision goggles, and the adjustment operation is cumbersome and cannot be operated with one hand. At the same time, the existing flip bracket is heavy and does not take into account the lightweight demand. Summary of the invention

[0004] In view of at least one of the above problems existing in the prior art, an object of the embodiments of the present application is to provide a sliding locking mechanism with a stable and reliable locking method and convenient and quick operation, and a flip bracket having the sliding locking mechanism.

[0005] The technical solution adopted in the embodiment of the present application is a sliding locking mechanism, comprising:

[0006] A guide rail, on which at least one row of first positioning holes is provided along an extending direction;

[0007] a sliding seat, which is disposed on the guide rail and can slide along the guide rail, wherein the sliding seat is provided with at least one first through hole, and when the sliding seat slides along the guide rail, the first through hole can be aligned with the first positioning hole on the guide rail in sequence;

[0008] A first locking assembly is arranged on the sliding seat and includes a first locking piece. The first locking piece has a locking state in which the first locking piece is simultaneously limited in the first positioning hole and the first through hole relative to each other to lock the sliding seat on the guide rail, and an unlocking state in which the first locking piece is released from the first positioning hole to release the locking of the sliding seat on the guide rail so that the sliding seat can slide along the guide rail.

[0009] In an optional embodiment, the locking member includes a first locking ball, and the first locking ball is movably disposed in the first through hole of the sliding seat;

[0010] The first locking assembly also includes:

[0011] a first button, which is arranged on the sliding seat and has a first push-button inclined surface, the first button can move relative to the sliding seat to have a pressed state and a released state, when the first button is in the released state, the first push-button inclined surface presses the first locking ball, so that the first locking ball partially enters the first positioning hole, so as to lock the sliding seat on the guide rail; when the first button is in the pressed state, the first push-button inclined surface cancels the pressing effect on the first locking ball, the first locking ball escapes from the first positioning hole, and the locking of the sliding seat is released, so that the sliding seat can slide along the guide rail;

[0012] The first restoring member acts on the first button and is used to apply a force to the first button to restore it from the pressed state to the released state.

[0013] In an optional embodiment, the sliding seat includes:

[0014] A seat body, on which a guide slide hole or a guide slide groove is provided; the seat body is sleeved on the guide rail through the guide slide hole, or is inserted into the guide rail through the guide slide groove, and can slide along the guide rail; the first through hole is provided on the hole wall of the guide slide hole or the groove wall of the guide slide groove, and is connected with the guide slide hole or the guide slide groove;

[0015] A protrusion is arranged on the seat body and has a first button cavity that passes through its circumferential side. The first button is arranged in the first button cavity and can move in an axial direction perpendicular to the guide slide hole to switch between the pressed state and the released state; the first button cavity is connected to the first through hole so that the first push inclined surface of the first button can act on the first locking ball.

[0016] In an optional embodiment, the guide rail is in a rod shape, the guide rail is provided with a plurality of the first positioning holes arranged in sequence along its axial direction, and the seat body is provided with the guide sliding hole adapted to the guide rail; or

[0017] The guide rail includes a base and two convex ridges arranged in parallel on the base, each of the convex ridges is provided with a plurality of first positioning holes arranged in sequence along its axial direction, and the first positioning holes on the two convex ridges are arranged in one-to-one correspondence; the seat body is provided with the guide slide groove, the seat body is mounted on the base through the guide slide groove, and the two opposite groove side walls of the guide slide groove are respectively slidably matched with the opposite two side parts of the base, and the seat body is provided with the first through holes that can respectively correspond to the first positioning holes on the two convex ridges; the protruding portion of the sliding seat has two first button cavities, the two first button cavities are respectively passed through to the opposite sides of the protruding portion, and the first buttons are respectively provided in the two first button cavities.

[0018] In an optional embodiment, the first button includes a first end for pressing, a second end away from the first end, a bottom side facing the first through hole, and a first side and a second side respectively connected to the bottom side, the bottom side is partially recessed inward to form a groove, the groove passes through to the first side and the second side of the first button, and the groove wall of the first end of the groove away from the first button gradually tilts toward the second end of the first button from the groove bottom to the groove mouth to form the first push inclined surface; when the first button is in a pressed state, the first locking ball partially protrudes out of the first through hole and is located in the groove.

[0019] A flip bracket includes a rotary locking mechanism and two sliding locking mechanisms in any of the above embodiments, wherein the two sliding locking mechanisms are respectively a first sliding locking mechanism and a second sliding locking mechanism, and the first sliding locking mechanism is rotationally connected to the second sliding locking mechanism through the rotary locking mechanism, so that the first sliding locking mechanism can at least flip to a closed state close to the second sliding locking mechanism or flip back to an unfolded state away from the second sliding locking mechanism.

[0020] In an optional embodiment, the rotation locking mechanism includes:

[0021] a rotating member connected to the guide rail of the first sliding locking mechanism and having at least one second through hole arranged around its periphery;

[0022] a fixed member connected to the sliding seat of the second sliding locking mechanism and having a through hole, wherein the fixed member is sleeved outside the rotating member through the through hole, and the hole wall of the through hole is provided with at least one group of second positioning holes respectively corresponding to at least one of the second through holes;

[0023] A second locking assembly is provided on the rotating component and includes a second locking piece. The second locking piece can be simultaneously limited in at least one of the second through hole and a group of second positioning holes corresponding thereto to lock the rotating member on the fixed member, or can be disengaged from the second positioning hole to release the locking of the rotating member on the fixed member, so that the rotating member can rotate relative to the fixed member.

[0024] In an optional embodiment, the second locking member is a second locking ball, the number of the second locking balls is the same as the number of the second through holes, and the second locking balls are movably disposed in the second through holes in a one-to-one correspondence;

[0025] The second locking assembly also includes:

[0026] a second button, which is disposed on the rotating member and has a second push-button inclined surface; the second button can move relative to the rotating member to have a pressed state and a released state; when the second button is in the released state, the second push-button inclined surface presses the second locking ball, so that the second locking ball partially enters the second positioning hole, so as to lock the rotating member on the fixed member; when the second button is in the pressed state, the second push-button inclined surface cancels the pressing effect on the second locking ball, so that the second locking ball escapes from the second positioning hole, and the locking of the rotating member is released, so that the rotating member can rotate relative to the fixed member;

[0027] The second restoring member acts on the second button and is used to apply a force to the second button to restore it from the pressed state to the released state.

[0028] In an optional embodiment, the fixing member includes a sleeve, and the second positioning hole is provided on an inner wall of the sleeve; and / or

[0029] The rotating member includes a shaft rod having an axial hole extending through the shaft rod to one end thereof in an axial direction; the second through hole is arranged on the outer peripheral wall of the shaft rod and is connected to the axial hole; the second button is arranged in the axial hole and can be moved along the axial direction of the axial hole to switch between the pressed state and the released state.

[0030] In an optional embodiment, the second button includes a rod portion inserted into the axial hole and a pressing portion exposed outside the axial hole, the rod portion includes a thin diameter section, a thick diameter section and a conical section for transitionally connecting the thin diameter section and the thick diameter section, the thin diameter section is closer to the pressing portion relative to the thick diameter section, the small diameter end of the conical section is connected to the thin diameter section, the large diameter end of the conical section is connected to the thick diameter section, and the outer peripheral surface of the conical section forms the second push-against inclined surface.

[0031] Compared with the prior art, the beneficial effects of the embodiments of the present application are: the sliding locking mechanism of the present application has a small gap, can form a stable and reliable lock, avoid causing the night vision device to shake, and the adjustment operation is convenient and quick, and can be operated with one hand. At the same time, the flip bracket is light in weight, comfortable to wear, and has a better use effect.

[0032] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application.

[0033] The overview of various implementations or examples of the technology described in this application is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In the drawings, which are not necessarily drawn to scale, the same reference numerals may describe similar components in different views. The drawings generally illustrate various embodiments by way of example and not limitation, and together with the specification and claims, serve to illustrate the claimed embodiments. Where appropriate, the same reference numerals are used throughout the drawings to refer to the same or similar parts.

[0035] Figure 1 This is a schematic diagram of the three-dimensional structure of the sliding locking mechanism of the first embodiment of the present application.

[0036] Figure 2 This is an exploded view of the sliding locking mechanism of Example 1 of the present application.

[0037] Figure 3 It is a schematic diagram of the three-dimensional structure of the sliding seat of the first embodiment of the present application.

[0038] Figure 4 This is a schematic diagram of the three-dimensional structure of the first button of Example 1 of the present application.

[0039] Figure 5 It is a schematic diagram of the three-dimensional structure of the sliding locking mechanism of the second embodiment of the present application.

[0040] Figure 6 This is an exploded view of the sliding locking mechanism of the second embodiment of the present application.

[0041] Figure 7 This is a cross-sectional view of the sliding locking mechanism of the second embodiment of the present application.

[0042] Figure 8 It is a schematic diagram of the three-dimensional structure of the flip bracket in the embodiment of the present application in the unfolded state.

[0043] Fig. 9 It is a schematic diagram of the three-dimensional structure of the flip bracket in the embodiment of the present application in a tilted state.

[0044] Fig.10 It is a schematic diagram of the three-dimensional structure of the flip bracket in the embodiment of the present application in a folded state.

[0045] Fig.11 It is a schematic diagram of the three-dimensional structure of the rotary locking mechanism of an embodiment of the present application.

[0046] Fig.12 This is an exploded view of the rotary locking mechanism of an embodiment of the present application.

[0047] Fig.13 2 is a cross-sectional view of a rotary locking mechanism according to an embodiment of the present application.

[0048] Fig.14 It is a schematic diagram of the three-dimensional structure of the shaft sleeve of the rotary locking mechanism according to an embodiment of the present application.

[0049] Fig.15 Schematic diagram of the three-dimensional structure of the shaft rod of the rotary locking mechanism according to an embodiment of the present application.

[0050] Fig.16 Schematic diagram of the three-dimensional structure of the second button of the rotary locking mechanism of the embodiment of the present application.

[0051] Reference numerals:

[0052] 10-first sliding locking mechanism;

[0053] 11-guide rail; 111-first positioning hole; 112-base; 113-convex edge;

[0054] 12-sliding seat; 121-seat body; 122-first through hole; 123-sliding guide hole; 124-sliding guide groove; 125-protruding portion; 126-first button cavity;

[0055] 13-first locking assembly; 131-first locking ball; 132-first button; 1321-first push-against inclined surface; 1322-first end; 1323-second end; 1324-bottom side; 1325-groove; 1326-inner hole; 133-first reset member;

[0056] 20- second sliding locking mechanism;

[0057] 30-rotation locking mechanism;

[0058] 31-rotating member; 311-shaft rod; 3111-second through hole; 3112-shaft hole; 3113-external thread; 312-first clamping plate; 313-second clamping plate; 3131-waist-shaped hole; 314-adjusting nut;

[0059] 32-fixing member; 321-shaft sleeve; 3211-through hole; 3212-second positioning hole A; 3213-second positioning hole B; 3214-second positioning hole C; 3215-convex portion; 322-fixing plate; 3221-fixing hole; 3222-concave portion;

[0060] 33 - second locking assembly; 331 - second locking ball; 332 - second reset member; 333 - second button; 3331 - rod; 3332 - frustum section; 3333 - second push-button inclined surface; 3334 - blind hole; 3335 - pressing portion. DETAILED DESCRIPTION

[0061] In order to make the purpose, technical solution and advantages of the embodiment of the present application clearer, the technical solution of the embodiment of the present application will be clearly and completely described in conjunction with the drawings of the embodiment of the present application. Obviously, the described embodiment is a part of the embodiment of the present application, not all of the embodiments. Based on the described embodiment of the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0062] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. "First", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0063] In order to keep the following description of the embodiments of the present application clear and concise, the present application omits detailed descriptions of known functions and known components.

[0064] First of all, it should be noted that this application is applicable to any device that can be worn on the user's head, including but not limited to night vision goggles, headlamps, night vision binoculars, etc. For the convenience of description, the following will be described using night vision goggles as an example. Among them, night vision goggles include but are not limited to low-light night vision goggles, infrared night vision goggles, fusion glasses, etc.

[0065] An embodiment of the present application provides a sliding locking mechanism, which can be used on a flip bracket to drive a night vision device (not shown in the figure) to move so as to adjust the distance between the night vision device and the user's eyes, so that the night vision device is in a suitable position that is more comfortable for the user to use.

[0066] like Figures 1 to 7 As shown, the sliding locking mechanism of the embodiment of the present application includes a guide rail 11, a sliding seat 12 and a first locking assembly 13. The guide rail 11 is provided with at least one row of first positioning holes 111 along its extension direction, and each row includes a plurality of first positioning holes 111. The sliding seat 12 is provided on the guide rail 11 and can slide along the guide rail 11. The sliding seat 12 is provided with at least one first through hole 122 corresponding to the number of rows of the first positioning holes 111. When the sliding seat 12 slides along the guide rail 11, the first through hole 122 can be sequentially opposite to the corresponding plurality of first positioning holes 111 located in the same row. The first locking assembly 13 is arranged on the sliding seat 12 and includes a first locking piece. The first locking piece has a locked state and an unlocked state. In the locked state, the first locking piece is simultaneously limited in the relative first positioning hole 111 and the first through hole 122 to lock the sliding seat 12 on the guide rail 11; in the unlocked state, the first locking piece is disengaged from the first positioning hole 111, releasing the lock of the sliding seat 12 on the guide rail 11, so that the sliding seat 12 can slide along the guide rail 11.

[0067] The sliding locking mechanism of the embodiment of the present application can lock and fix the sliding seat 12 on the guide rail 11 by providing a first positioning hole 111 on the guide rail 11 and a first through hole 122 that cooperates with the first positioning hole 111 on the sliding seat 12, and utilizing a first locking member that can be simultaneously inserted into the first positioning hole 111 and the first through hole 122, or removed from the first positioning hole 111 and only in the first through hole 122. The above structure is simple and reasonable, and the first locking member cooperates tightly with the first positioning hole 111. In the locked state, no shaking will occur, thereby ensuring the use effect of the night vision device.

[0068] It is understandable that the specific structural form of the first locking member is not limited, as long as it can be adapted to the first through hole 122 and the first positioning hole 111, and can smoothly enter and exit the first positioning hole 111. For example, the first locking member can be a sphere, the diameter of which is smaller than the diameter of the first through hole 122, but larger than the aperture of the first positioning hole 111, so that the sphere can move freely in the axial direction of the first through hole 122, but will not fall from the side of the first positioning hole 111 (when the first positioning hole 111 is a through hole) away from the first through hole 122, and the sphere can only partially enter the first positioning hole 111, so that in the unlocked state, the sphere can smoothly escape from the first positioning hole 111 toward the first through hole 122. For another example, the first locking member may be a short cylinder (pin), one end of which is spherical toward the first positioning hole 111, and the radial dimension of the short cylinder is smaller than the aperture of the first through hole 122, so that the short cylinder can move freely in the axial direction of the first through hole 122; the diameter of the spherical surface at one end of the short cylinder is larger than the aperture of the first positioning hole 111, and can only partially enter the first positioning hole 111, so that in the unlocked state, one end of the short cylinder can smoothly escape from the first positioning hole 111 toward the first through hole 122, and the short cylinder will not fall from the side of the first positioning hole 111 (when the first positioning hole 111 is a through hole) away from the first through hole 122. For the convenience of description, the following will take the first locking ball 131 of the first locking member as a sphere as an example for explanation. Since the action principle of the first locking member when it is a short cylinder is the same as that when it is a sphere, this application will not give a specific introduction to the first locking member when it is a short cylinder. In addition, the material of the first locking member is not limited, and may be, for example, metal or hard plastic.

[0069] In some embodiments, Figure 2 and Figure 5As shown, the first locking assembly 13 includes a first locking ball 131, a first button 132 and a first reset member 133. The first locking ball 131 is movably disposed in the first through hole 122 of the sliding seat 12. The first button 132 is disposed on the sliding seat 12 and has a first push-against inclined surface 1321. The first button 132 can move relative to the sliding seat 12 to have a pressed state and a released state. When the first button 132 is in the released state, the first push-against inclined surface 1321 pushes against the first locking ball 131, so that the first locking ball 131 partially enters the first positioning hole 111, so as to lock the sliding seat 12 on the guide rail 11, and the sliding seat 12 will not be able to slide relative to the guide rail 11. When the first button 132 is in a pressed state, the first push-against inclined surface 1321 cancels the push-against effect on the first locking ball 131, and the first locking ball 131 can be disengaged from the first positioning hole 111, and the lock on the sliding seat 12 is released, so that the sliding seat 12 can slide along the guide rail 11. The first reset member 133 acts on the first button 132, and is used to apply a force to the first button 132 to reset it from the pressed state to the released state. The structure of the first locking assembly 13 of the embodiment of the present application is simple and reasonable, and the operation is convenient. The locking and unlocking of the sliding seat 12 on the guide rail 11 can be achieved by pressing the first button 132 with one hand. And when the first button 132 is in a released state, under the action of the first reset member 133, the guide rail 11 supports the first locking ball 131 to the first push-against inclined surface 1321, which plays a role in eliminating gaps and enhancing damping, and prevents the problem of jitter caused by excessive rotation when the sliding locking mechanism is applied to the flip bracket, which affects the position adjustment.

[0070] In some embodiments, the sliding seat 12 includes a seat body 121 and a protrusion 125. The seat body 121 is slidably disposed on the guide rail 11 and can drive the protrusion 125 to slide along the guide rail 11. The first through hole 122 is disposed on the seat body 121 and one side of the hole faces the guide rail 11. When the seat body 121 slides, the hole can be opposite to and communicate with multiple first through holes 122 on the first guide rail 11 in sequence. The protrusion 125 is disposed on the side of the seat body 121 away from the guide rail 11 and has a first button cavity 126 that penetrates to its circumference. The first button 132 is disposed in the first button cavity 126 and can move in the axial direction perpendicular to the guide sliding hole 123. The first button cavity 126 is connected to the first through hole 122, so that the first locking ball 131 in the first through hole 122 can extend into the first button cavity 126, and when the first button 132 is pressed or released, it is acted upon by the first pushing slope 1321 and switches between the locked state and the unlocked state, thereby locking and unlocking the seat body 121.

[0071] It is understandable that the specific structure of the guide rail 11 is not limited, as long as the sliding seat 12 can slide along it. The specific structures of the guide rail 11 and the sliding seat 12 are described in detail below with different embodiments.

[0072] Embodiment 1

[0073] like Figure 1 and Figure 2 As shown, the guide rail 11 includes a base 112 and two ridges 113 arranged in parallel on the base 112, each ridge 113 is provided with a plurality of first positioning holes 111 arranged in sequence along its axial direction, and the plurality of first positioning holes 111 on the two ridges 113 are arranged in one-to-one correspondence, wherein the first positioning hole 111 can be a through hole or a blind hole, which is not specifically limited in this embodiment.

[0074] like Figure 3 As shown, the seat body 121 of the sliding seat 12 is provided with a guide slot 124, and the seat body 121 is installed on the base 112 through the guide slot 124, and the two opposite slot side walls of the guide slot 124 are respectively slidably matched with the opposite two side parts of the base 112. That is, the two sides of the base 112 form dovetail parts, and the two slot side walls of the guide slot 124 are respectively formed with dovetail slots, and the dovetail parts are embedded in the dovetail slots. In this way, the sliding seat 12 is limited on the base 112 and can slide along the base 112, but cannot escape from the base 112. The seat body 121 of the sliding seat 12 is provided with first through holes 122 corresponding to the first positioning holes 111 on the two convex ridges 113.

[0075] Continue to combine Figure 3 , the protrusion 125 and the seat body 121 can be an integrated structure or a split structure, which is not specifically limited in the present application. The protrusion 125 of the sliding seat 12 has two first button cavities 126, and the two first button cavities 126 are respectively connected to the opposite sides of the protrusion 125. That is, one end of the first button cavity 126 is open, and the other end is blocked. The direction of the first button cavity 126 from one end to the other end is perpendicular to the extension direction of the convex rib 113. It can be understood that the protrusion 125 of the second embodiment can also be considered to be composed of two separate protrusions merged, and the first button cavity 126 is respectively provided on the opposite sides of the two protrusions. The first button 132 is installed into the first button cavity 126 from the open end. The first buttons 132 are respectively provided in the two first button cavities 126.

[0076] The first restoring member 133 may be a spring. In order to avoid the first abutting inclined surface 1321 and avoid affecting the effect of the first abutting inclined surface 1321 on the first locking ball 131 , the spring may be provided inside the first button 132 .

[0077] Exemplarily, the first button 132 includes a first end 1322 for pressing and a second end 1323 away from the first end 1322. An inner hole 1326 is provided in the first button 132, and the inner hole 1326 passes through to the second end 1323 thereof and forms an opening. The first reset member 133 is provided in the inner hole 1326, and one end thereof abuts against the bottom of the inner hole 1326, and the other end abuts against the blocking end of the first button cavity 126. When the first button 132 is in a pressed state, the first reset member 133 is compressed and accumulates elastic potential energy. When the first button 132 is released, the first reset member 133 releases the elastic potential energy and pushes the first button 132 to move toward the outside of the first button cavity 126.

[0078] like Figure 4 As shown, the first button 132 further includes a bottom side 1324 facing the first through hole 122 and a first side and a second side respectively connected to the bottom side 1324. The bottom side 1324 is partially recessed inward to form a groove 1325, and the groove 1325 passes through the first side and the second side of the first button 132. The groove wall of the groove 1325 away from the first end 1322 of the first button 132 gradually tilts from the groove bottom to the groove mouth toward the direction of the second end 1323 of the first button 132 to form a first push-against inclined surface 1321.

[0079] When the position of the sliding seat 12 on the guide rail 11 needs to be adjusted, the first ends 1322 of the two first buttons 132 are pressed at the same time, the two first reset members 133 are compressed at the same time, the first push inclined surfaces 1321 on the two first buttons 132 move away from the first through hole 122 at the same time, and the two first buttons 132 release the action on the first locking balls 131 pressed by them at the same time, wherein the moving direction of the first push inclined surfaces 1321 is perpendicular to the extension direction of the guide rail 11. The two first push inclined surfaces 1321 simultaneously cancel the pressure on the first locking balls 131 pressed by them, so that the first locking balls 131 can move in the axial direction of the first through hole 122. When the sliding seat 12 is pushed to slide along the guide rail 11, under the action of the sliding seat 12, the part of the first locking ball 131 located in the first positioning hole 111 will come out of the first positioning hole 111 and move with the sliding seat 12. When the sliding seat 12 moves to the desired position, the pressing of the two first buttons 132 is canceled at the same time, and the two first buttons 132 are respectively switched to the released state under the action of their respective first reset members 133, and the first push inclined surfaces 1321 move toward the direction close to the first through hole 122 and press against the first locking balls 131 corresponding to them, so that the first locking balls 131 partially extend into the first positioning holes 111 (see Figure 2 and Figure 7), under the joint action of the opposite directions of forces applied to the first locking ball 131 by the first pushing inclined surface 1321 and the wall of the first positioning hole 111, the first locking ball 131 is stably and firmly maintained in a locked state, and the sliding seat 12 is locked on the guide rail 11, not only cannot slide relative to the guide rail 11, but also will not shake or sway even when a rapid flip occurs.

[0080] In the first embodiment, the double rows of first positioning holes 111 are used in combination with the control of the double buttons, so that the sliding seat 12 can be locked on the guide rail 11 more stably, and the locking effect is excellent.

[0081] It is understandable that, corresponding to each row of first positioning holes 111 on the guide rail 11, only one first through hole 122 and one first locking ball 131 may be provided, or more than two first through holes 122 and more than two first locking balls 131 matching the number of the first through holes 122 may be provided. When more than two first through holes 122 and more than two first locking balls 131 are provided, in the locked state, there are first positioning holes 111 corresponding to more than two first locking balls 131, respectively, so that the first locking balls 131 partially enter. By providing more than two first through holes 122 and more than two first locking balls 131, the tightness after locking can be further improved, and shaking due to looseness will not occur.

[0082] Optionally, in order to simplify the structure while ensuring the locking effect, two first through holes 122 may be provided on the sliding seat 12, and the two first through holes 122 are arranged along the moving direction of the sliding seat 12. The locking assembly includes two first locking balls 131, and the two first locking balls 131 are arranged in the two first through holes 122 in a one-to-one correspondence. When the first push-against inclined surface 1321 on the first button 132 can act on the two first locking balls 131 at the same time, that is, the two first locking balls 131 can move synchronously under the action of the same first button 132. In order to enable the first push-against inclined surface 1321 on the same first button 132 to act on the two first locking balls 131 at the same time, it is necessary to enlarge the size of the first push-against inclined surface 1321 in the sliding direction of the sliding seat 12 so that it can cover the two first locking balls 131 at the same time. Of course, two identical first push inclined surfaces 1321 may be designed on the same first button 132 to push the two first locking balls 131 respectively, but it is necessary to ensure that the two first push inclined surfaces 1321 can keep the two first locking balls 131 moving synchronously.

[0083] When the first button 132 is in the released state, the two first locking balls 131 can correspond to two adjacent first positioning holes 111 on the guide rail 11, or can correspond to two spaced first positioning holes 111, so that parts of the two first locking balls 131 can enter the adjacent or spaced first positioning holes 111. Figure 2 As shown, the two first locking balls 131 shown in this embodiment can respectively enter into the two spaced-apart first positioning holes 111 , which can increase the positioning length and improve the locking effect.

[0084] Embodiment 2

[0085] The difference between the second embodiment and the first embodiment mainly lies in the structural forms of the guide rail 11 and the sliding seat 12 and the number of rows of the first positioning holes 111 .

[0086] like Figure 5 and Figure 6 As shown, the guide rail 11 is in the shape of a rod, and the rod can be a hollow rod or a solid rod. In order to reduce the weight and improve the comfort when worn on the head, it is preferred to design the rod as a hollow rod. The guide rail 11 is provided with a plurality of first positioning holes 111 arranged in sequence along its axial direction, that is, the guide rail 11 is provided with a row of first positioning holes 111 along its axial direction. The seat body 121 of the sliding seat 12 is provided with a guide sliding hole 123 adapted to the guide rail 11, and the seat body 121 is sleeved on the guide rail 11 through the guide sliding hole 123.

[0087] A protrusion 125 is provided on the seat body 121 of the sliding seat 12, and a first button cavity 126 is provided on the protrusion 125, which penetrates the circumference thereof, that is, one end of the first button cavity 126 is open, and the other end is blocked. The direction from one end to the other end of the first button cavity 126 is perpendicular to the extension direction of the guide rail 11. The first button 132 is installed into the first button cavity 126 from the open end. The action process and action principle of the first button 132 in the first button cavity 126 in the second embodiment, as well as the matching relationship with the first locking ball 131 are the same as those in the first embodiment, and will not be repeated here.

[0088] It should be noted that in order to prevent the sliding seat 12 from rotating around the rod-shaped guide rail 11, an anti-rotation structure can be set between the two. For example, the side of the guide rail 11 away from the first positioning hole 111 is set to a non-arc surface, that is, a multi-plane connection form, and the hole wall of the non-arc surface part of the guide rail corresponding to the guide slide hole 123 is also designed to be a corresponding multi-plane form. For another example, a corresponding concave-convex structure is set on the outer peripheral wall of the guide rail 11 and the hole wall of the guide slide hole 123, and the rotation of the sliding seat 12 is limited by the cooperation of the concave-convex structure. It can be understood that no matter what form of anti-rotation structure, it will not affect the sliding of the sliding seat 12 on the guide rail 11.

[0089] The present application also provides a flip bracket, such as Figures 8 to 10 As shown, the flip bracket includes a rotary locking mechanism 30 and two sliding locking mechanisms in any of the above embodiments, the two sliding locking mechanisms are respectively a first sliding locking mechanism 10 and a second sliding locking mechanism 20. The first sliding locking mechanism 10 is rotatably connected to the second sliding locking mechanism 20 through the rotary locking mechanism 30, so that the first sliding locking mechanism 10 can at least flip to a closed state close to the second sliding locking mechanism 20 or flip back to an unfolded state away from the second sliding locking mechanism 20.

[0090] The flip bracket of the embodiment of the present application includes the sliding locking mechanism of the above-mentioned embodiment, so the structure is more stable and reliable, and will not shake even when flipped too quickly, thereby improving the user experience.

[0091] In some embodiments, Figures 11 to 13 As shown, the rotary locking mechanism 30 includes a rotating member 31, a fixed member 32 and a second locking assembly 33. The rotating member 31 is connected to the guide rail 11 of the first sliding locking mechanism 10 and has at least one second through hole 3111 around its periphery. The fixed member 32 is connected to the sliding seat 12 of the second sliding locking mechanism 20 and has a through hole 3211. The fixed member 32 is sleeved on the outside of the rotating member 31 through the through hole 3211. The hole wall of the through hole 3211 is provided with at least one group of second positioning holes corresponding to the at least one second through hole 3111. The second locking assembly 33 is arranged on the rotating component and includes a second locking piece. The second locking piece has a locked state and an unlocked state. In the locked state, the second locking piece is simultaneously limited in at least one of the second through hole 3111 and a group of second positioning holes corresponding thereto to lock the rotating member 31 on the fixed member 32; in the unlocked state, the second locking piece is disengaged from the second positioning hole, releasing the lock of the rotating member 31 on the fixed member 32, so that the rotating member 31 can rotate relative to the fixed member 32.

[0092] The rotary locking mechanism 30 of the embodiment of the present application can lock and fix the rotating member 31 on the fixed member 32 by providing a second positioning hole on the fixed member 32 and a second through hole 3111 matching the second positioning hole on the rotating member 31, and utilizing a second locking member that can be simultaneously inserted into the second positioning hole and the second through hole 3111, or removed from the second positioning hole and only in the second through hole 3111, the rotating member 31 can be locked and fixed on the fixed member 32. The above structure is simple and reasonable, and the second locking member is tightly matched with the second positioning hole, so the locking effect is better and the stability is high.

[0093] The specific structural form of the second locking member is not limited, as long as it can be adapted to the second through hole 3111 and the second positioning hole, and can smoothly enter and exit the second positioning hole. For example, the second locking member can be a sphere, the diameter of which is smaller than the diameter of the second through hole 3111, but larger than the aperture of the second positioning hole, so that the sphere can move freely in the axial direction of the second through hole 3111, but will not fall from the side of the second positioning hole (when the second positioning hole is a through hole) away from the second through hole 3111, and the sphere can only partially enter the second positioning hole, so that in the unlocked state, the sphere can smoothly escape from the second positioning hole toward the second through hole 3111. For another example, the second locking member can be a short cylinder, one end of which is spherical toward the second positioning hole, and the radial dimension of the short cylinder is smaller than the aperture of the second through hole 3111, so that the short cylinder can move freely in the axial direction of the second through hole 3111; the diameter of the spherical surface at one end of the short cylinder is larger than the aperture of the second positioning hole, and can only partially enter the second positioning hole, so that in the unlocked state, one end of the short cylinder can smoothly escape from the second positioning hole toward the second through hole 3111, and the short cylinder will not fall from the second positioning hole (when the second positioning hole is a through hole) away from the side of the second through hole 3111. For the convenience of description, the second locking ball 331 in which the second locking member is a sphere will be used as an example for explanation. Since the action principle of the second locking member in the form of a short cylinder is the same as that in the form of a sphere, the present application will not make a specific introduction to the second locking member in the form of a short cylinder. In addition, the material of the second locking member is not limited, and metal material or hard plastic material can be selected, for example.

[0094] In some embodiments, Fig.12 and Fig.13As shown, the second locking member is a second locking ball 331. The number of the second locking balls 331 is the same as the number of the second through holes 3111, and they are movably arranged in the second through holes 3111 in a one-to-one correspondence. The second locking assembly 33 also includes a second button 333 and a second reset member 332. The second button 333 is arranged on the rotating member 31, and has a second push-against inclined surface 3333. The second button 333 can move relative to the rotating member 31 and has a pressed state and a released state. When the second button 333 is in the released state, the second push-against inclined surface 3333 presses the second locking ball 331, so that the second locking ball 331 partially enters the second positioning hole, so as to lock the rotating member 31 on the fixed member 32, so that the rotating member 31 cannot rotate relative to the fixed member 32. When the second button 333 is in a pressed state, the second push inclined surface 3333 cancels the pressing effect on the second locking ball 331, the second locking ball 331 escapes from the second positioning hole, and the lock on the rotating member 31 is released, so that the rotating member 31 can rotate relative to the fixed member 32. The second reset member 332 acts on the second button 333 to apply a force to the second button 333 to reset it from the pressed state to the released state. The second locking assembly 33 of the embodiment of the present application has a simple and reasonable structure and is easy to operate. The locking and unlocking of the rotating member 31 on the fixed member 32 can be achieved by pressing the second button 333 with one hand.

[0095] In some embodiments, Fig.14 As shown, the fixing member 32 includes a sleeve 321 , and the second positioning hole is provided on the inner wall of the sleeve 321 , and the axis of the positioning hole is consistent with the radial direction of the sleeve 321 .

[0096] like Fig.15 As shown, the rotating member 31 includes a shaft 311. The shaft 311 has a shaft hole 3112 extending to one end thereof in the axial direction, and a second through hole 3111 is provided on the outer peripheral wall of the shaft 311 and communicates with the shaft hole 3112. The second button 333 is provided in the shaft hole 3112 and can move along the axial direction of the shaft hole 3112 to switch between a pressed state and a released state. The structural design of the fixed member 32 and the rotating member 31 is ingenious, simple and reasonable, which can reduce the difficulty of processing and manufacturing, and is light in weight, thereby improving wearing comfort.

[0097] In some embodiments, Fig.16As shown, the second button 333 includes a rod portion 3331 inserted into the shaft hole 3112 and a pressing portion 3335 exposed outside the shaft hole 3112. The rod portion 3331 includes a thin diameter section, a thick diameter section, and a truncated cone section 3332 for transitionally connecting the thin diameter section and the thick diameter section. The thin diameter section is closer to the pressing portion 3335 than the thick diameter section. The small diameter end of the truncated cone section 3332 is connected to the thin diameter section, and the large diameter end of the truncated cone section 3332 is connected to the thick diameter section. The outer peripheral surface of the truncated cone section 3332 forms a second push-against inclined surface 3333. The processing method of designing the truncated cone section 3332 on the rod portion 3331 of the second button 333 to form the second push-against inclined surface 3333 is simple, and is conducive to the effective cooperation between the second push-against inclined surface 3333 and the second locking ball 331.

[0098] The second reset member 332 may be a spring. In order to avoid the second push-against inclined surface 3333 and avoid affecting the effect of the second push-against inclined surface 3333 on the second locking ball 331, the spring may be provided inside the second button 333. Fig.13 As shown, a blind hole 3334 is provided inside the rod portion 3331 of the second button 333 at one end away from the pressing portion 3335, and a second reset member 332 is provided in the blind hole 3334. One end of the second reset member 332 abuts against the bottom of the blind hole 3334, and the other end abuts against the bottom of the shaft hole 3112 of the shaft rod 311. When the second button 333 is in a pressed state, the second reset member 332 is compressed and accumulates elastic potential energy. When the second button 333 is released, the first reset member 133 releases the elastic potential energy and pushes the second button 333 to move toward the direction outside the shaft hole 3112.

[0099] It is understandable that the number of second locking balls 331 in the second locking assembly 33 is not limited. The use of multiple second locking balls 331 to cooperate with each other for locking can improve stability. When too many second locking balls 331 are provided, the complexity of the structure will increase, and the cost and weight will increase. The present application preferably takes the provision of two second locking balls 331 as an example for explanation. For the convenience of description, the two second locking balls 331 are respectively defined as a second locking ball 331A and a second locking ball 331B.

[0100] The number of second positioning holes included in each group of second positioning holes varies according to the number of positions where the first sliding locking mechanism 10 needs to be positioned during the flipping process. For example, when the first sliding locking mechanism 10 only needs to be in the closed state (see Fig.10 ) and expanded state (see Figure 8) When the first sliding locking mechanism 10 is switched between the two positions, each group only needs to include two second positioning holes. When the first sliding locking mechanism 10 is rotated to the closed state, the second locking ball 331 is located in one of the second positioning holes, so that the first sliding locking mechanism 10 is stably maintained in the closed state; when the first sliding locking mechanism 10 is rotated to the unfolded state, the second locking ball 331 is located in the other second positioning hole, so that the first sliding locking mechanism 10 is stably maintained in the unfolded state. When the first sliding locking mechanism 10 needs to be positioned in addition to the positions in the closed and unfolded states, it is also necessary to add a positioning position between the two positions (for example, Fig. 9 When the second positioning holes are in the tilted position, a corresponding number of positioning holes need to be added between the two second positioning holes.

[0101] The following describes the arrangement of the second positioning holes by taking the example that the first sliding locking mechanism 10 only needs to switch between the closed state and the unfolded state.

[0102] Preferably, two second through holes 3111 are provided on the outer peripheral wall of the shaft rod 311. A second locking ball 331A and a second locking ball 331B are respectively provided in the two second through holes 3111. Fig.14 As shown, three second positioning holes are provided on the inner wall of the sleeve 321. The three second positioning holes are located on the same circumference and are respectively the second positioning hole A 3212, the second positioning hole B 3213 and the second positioning hole C 3214. The second positioning hole C 3214 forms a group with the second positioning hole A 3212 and corresponds to the second locking ball 331A. The second locking ball 331A can be locked to the second positioning hole C 3214 and the second positioning hole A 3212 respectively; the second positioning hole C 3214 and the second positioning hole B 3213 form a group and correspond to the second locking ball 331B. The second locking ball 331B can be locked to the second positioning hole C 3214 and the second positioning hole B 3213 respectively. That is, the two groups share the second positioning hole C 3214, which can reduce the number of second positioning holes and simplify the structure. The second positioning hole C 3214 is at the same distance from the second positioning hole A 3212 and the second positioning hole B 3213. The central angle of the arc between the second positioning hole C 3214 and the second positioning hole A 3212 is α, and the central angle of the arc between the second positioning hole C 3214 and the second positioning hole B 3213 is β. α and β are equal and greater than 90°, preferably α and β are 120°. In this way, the rotation (flip) angle of the first sliding locking mechanism 10 can be guaranteed.

[0103] When the second button 333 is pressed to put it in a pressed state, the second reset member 332 is compressed and accumulates elastic potential energy. The second push inclined surface 3333 simultaneously releases the pressure on the two second locking balls 331 (the second locking ball 331A and the second locking ball 331B), and the two second locking balls 331 are respectively retracted into the two second through holes 3111. At this time, the rotating member 31 can drive the first sliding locking mechanism 10 to rotate (or flip) relative to the fixed member 32 and the second sliding locking mechanism 20. When the first sliding locking mechanism 10 rotates to be close to the second sliding locking mechanism 20 and is in a closed state, the second button 333 is released at this time. The second button 333 switches from a pressed state to a released state under the action of the second reset member 332. The second push inclined surface 3333 simultaneously pushes the two second locking balls 331, pressing the second locking ball 331A against the bottom or wall of the second positioning hole C 3214, and the second locking ball 331B against the second positioning hole B On the bottom or wall of the hole 3213, the first sliding locking mechanism 10 is locked and fixed in the closed state, so that the first sliding locking mechanism 10 is stably maintained in this state without shaking. When the first sliding locking mechanism 10 needs to be rotated to be away from the second sliding locking mechanism 20 to be in the expanded state, the second button 333 is pressed again, and the second pushing inclined surface 3333 on the second button 333 moves in the direction away from the second locking ball 331, and the pressure on the two second locking balls 331 is released, so that the two second locking balls 331 can move in the two second through holes 3111 respectively. When the rotating member 31 drives the first sliding locking mechanism 10 to rotate relative to the fixed member 32 and the second sliding locking mechanism 20 to the expanded state, the second button 333 is released at this time. The second button 333 is switched from the pressed state to the released state under the action of the second reset member 332, and the second pushing inclined surface 3333 pushes the two second locking balls 331 at the same time, pressing the second locking ball 331A against the bottom or wall of the second positioning hole A 3212, and pressing the second locking ball 331B against the second positioning hole C On the bottom or wall of the hole 3214, the first sliding locking mechanism 10 is locked and fixed in the unfolded state.

[0104] The rotary locking mechanism 30 of the embodiment of the present application can form a strong damping effect when the rotating member 31 rotates through the cooperation of the second locking ball 331, the second through hole 3111, the second positioning hole and the button, play a role in eliminating gaps and constant damping, prevent the rotating member 31 from rotating too fast and affecting the position adjustment of the first sliding locking mechanism 10, and can achieve fixation at a certain angle, with reliable fixation, greatly improving the use effect.

[0105] In some embodiments, Fig.11 and Fig.12As shown, the fixing member 32 also includes a fixing plate 322, and the fixing plate 322 has a fixing hole 3221, and two recesses 3222 are provided on the hole wall of the fixing hole 3221. Two protrusions 3215 are provided on the outer peripheral wall of the sleeve 321, and the sleeve 321 is embedded in the fixing hole 3221, and the two protrusions 3215 are correspondingly inserted into the two recesses 3222 to fix the sleeve 321 on the fixing plate 322. The rotating member 31 also includes a first clamping plate 312 and a second clamping plate 313, and the first clamping plate 312 and the second clamping plate 313 are clamped on opposite sides of the fixing plate 322, and the shaft rod 311 passes through the hole on the first clamping plate 312, the holes on the sleeve 321 and the second clamping plate 313 in sequence, and is locked with the two clamping plates. In this way, the shaft 311 is fixed to the two clamping plates. When the shaft 311 rotates, the two clamping plates can be driven to rotate synchronously. The first clamping plate 312 is fixed to the guide rail 11 of the first sliding locking mechanism 10, thereby driving the first sliding locking mechanism 10 to rotate.

[0106] Further, such as Fig.12 As shown, the other end of the shaft rod 311 is flat and has an external thread 3113. The second clamping plate 313 is provided with a waist-shaped hole 3131 adapted to the other end of the shaft rod 311. The other end of the shaft rod 311 passes through the waist-shaped hole 3131 and is connected to an adjusting nut 314. The tightness of the shaft rod 311 and the two clamping plates can be adjusted by adjusting the nut 314, and then the tightness of the second button 333 can be adjusted to improve the use effect.

[0107] When the night vision device is worn on a helmet using the flip bracket of the embodiment of the present application, the guide rail 11 of the second sliding locking mechanism 20 can be fixed on the helmet. The guide rail 11 of the second sliding locking mechanism 20 can be formed by the guide rail 11 including the base 112 in the second embodiment. The base 112 can fit the helmet to facilitate its stable installation on the helmet. The night vision device is installed on the sliding seat 12 of the first sliding locking mechanism 10.

[0108] When the night vision device is needed, the second button 333 is pressed, and the first sliding locking mechanism 10 is rotated to adjust it to the unfolded state, at which time the guide rail 11 of the first sliding locking mechanism 10 is substantially horizontal (see Figure 8) and is located in front of the user's head. At this time, if the sliding seat 12 of the second sliding locking mechanism 20 slides along the guide rail 11 (its sliding direction is roughly the up and down direction), it will drive the rotary locking mechanism 30 and the first sliding locking mechanism 10 to slide synchronously to adjust the up and down position of the night vision goggles fixed on the sliding seat 12 of the first sliding locking mechanism 10 relative to the user's eyes. If the sliding seat 12 of the first sliding locking mechanism 10 slides along the guide rail 11, it will drive the night vision goggles thereon to move forward and backward relative to the user's eyes, so that the night vision goggles can be adjusted up, down, forward and backward to adjust the night vision goggles to a comfortable position for the user.

[0109] When the night vision device is not needed, the second button 333 is pressed and the first sliding locking mechanism 10 is rotated to close it (see Fig.10 ) onto the helmet to avoid the front of the user's head and not affect the user's normal activities.

[0110] The locking mechanism gap of the flip bracket in the embodiment of the present application is small, which can form a stable and reliable lock to avoid causing the night vision device to shake. The adjustment operation is convenient and quick, and can be operated with one hand. At the same time, the flip bracket is light in weight, comfortable to wear, and has a better use effect.

[0111] The above description is intended to be illustrative rather than restrictive, and those skilled in the art may make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure. Moreover, the above examples (or one or more of them) may be used in combination with each other, and it is contemplated that these embodiments may be combined with each other in various combinations or permutations.

Claims

1. A sliding locking mechanism, characterized in that: include: A guide rail, on which at least one row of first positioning holes is provided along an extending direction; a sliding seat, which is disposed on the guide rail and can slide along the guide rail, wherein the sliding seat is provided with at least one first through hole, and when the sliding seat slides along the guide rail, the first through hole can be aligned with the first positioning hole on the guide rail in sequence; A first locking assembly is arranged on the sliding seat and includes a first locking piece. The first locking piece has a locking state in which the first locking piece is simultaneously limited in the first positioning hole and the first through hole relative to each other to lock the sliding seat on the guide rail, and an unlocking state in which the first locking piece is released from the first positioning hole to release the locking of the sliding seat on the guide rail so that the sliding seat can slide along the guide rail.

2. The sliding locking mechanism according to claim 1, characterized in that: The locking member comprises a first locking ball, and the first locking ball is movably disposed in the first through hole of the sliding seat; The first locking assembly also includes: a first button, which is arranged on the sliding seat and has a first push-button inclined surface, the first button can move relative to the sliding seat to have a pressed state and a released state, when the first button is in the released state, the first push-button inclined surface presses the first locking ball, so that the first locking ball partially enters the first positioning hole, so as to lock the sliding seat on the guide rail; when the first button is in the pressed state, the first push-button inclined surface cancels the pressing effect on the first locking ball, the first locking ball escapes from the first positioning hole, and the locking of the sliding seat is released, so that the sliding seat can slide along the guide rail; The first restoring member acts on the first button and is used to apply a force to the first button to restore it from the pressed state to the released state.

3. The sliding locking mechanism according to claim 2, characterized in that: The sliding seat comprises: A seat body, on which a guide slide hole or a guide slide groove is provided; the seat body is sleeved on the guide rail through the guide slide hole, or is inserted into the guide rail through the guide slide groove, and can slide along the guide rail; the first through hole is provided on the hole wall of the guide slide hole or the groove wall of the guide slide groove, and is connected with the guide slide hole or the guide slide groove; A protrusion is arranged on the seat body and has a first button cavity that passes through its circumferential side. The first button is arranged in the first button cavity and can move in an axial direction perpendicular to the guide slide hole to switch between the pressed state and the released state; the first button cavity is connected to the first through hole so that the first push inclined surface of the first button can act on the first locking ball.

4. The sliding locking mechanism according to claim 3, characterized in that: The guide rail is in a rod shape, and is provided with a plurality of the first positioning holes arranged in sequence along its axial direction, and the seat body is provided with the guide sliding hole adapted to the guide rail; or The guide rail includes a base and two convex ridges arranged in parallel on the base, each of the convex ridges is provided with a plurality of first positioning holes arranged in sequence along its axial direction, and the first positioning holes on the two convex ridges are arranged in one-to-one correspondence; the seat body is provided with the guide slide groove, the seat body is mounted on the base through the guide slide groove, and the two opposite groove side walls of the guide slide groove are respectively slidably matched with the opposite two side parts of the base, and the seat body is provided with the first through holes that can respectively correspond to the first positioning holes on the two convex ridges; the protruding portion of the sliding seat has two first button cavities, the two first button cavities are respectively passed through to the opposite sides of the protruding portion, and the first buttons are respectively provided in the two first button cavities.

5. The sliding locking mechanism according to any one of claims 2 to 4, characterized in that: The first button comprises a first end for pressing, a second end away from the first end, a bottom side facing the first through hole, and a first side and a second side respectively connected to the bottom side, the bottom side is partially recessed inward to form a groove, the groove passes through the first side and the second side of the first button, and a groove wall of the groove away from the first end of the first button gradually inclines from the groove bottom to the groove opening toward the direction of the second end of the first button to form the first push-against inclined surface; When the first button is in a pressed state, the first locking ball partially protrudes out of the first through hole and is located in the groove.

6. A flip bracket, comprising a rotary locking mechanism, characterized in that: The flip bracket also includes two sliding locking mechanisms described in any one of claims 1 to 5, the two sliding locking mechanisms are respectively a first sliding locking mechanism and a second sliding locking mechanism, the first sliding locking mechanism is rotatably connected to the second sliding locking mechanism through the rotary locking mechanism, so that the first sliding locking mechanism can at least flip to a closed state close to the second sliding locking mechanism or flip back to an unfolded state away from the second sliding locking mechanism.

7. The flip bracket according to claim 6, characterized in that: The rotary locking mechanism comprises: a rotating member connected to the guide rail of the first sliding locking mechanism and having at least one second through hole arranged around its periphery; a fixed member connected to the sliding seat of the second sliding locking mechanism and having a through hole, wherein the fixed member is sleeved outside the rotating member through the through hole, and the hole wall of the through hole is provided with at least one group of second positioning holes respectively corresponding to at least one of the second through holes; A second locking assembly is provided on the rotating component and includes a second locking piece. The second locking piece can be simultaneously limited in at least one of the second through hole and a group of second positioning holes corresponding thereto to lock the rotating member on the fixed member, or can be disengaged from the second positioning hole to release the locking of the rotating member on the fixed member, so that the rotating member can rotate relative to the fixed member.

8. The flip bracket according to claim 7, characterized in that: The second locking member is a second locking ball, the number of which is the same as the number of the second through holes, and the second locking balls are movably arranged in the second through holes in a one-to-one correspondence; The second locking assembly also includes: a second button, which is disposed on the rotating member and has a second push-button inclined surface; the second button can move relative to the rotating member to have a pressed state and a released state; when the second button is in the released state, the second push-button inclined surface presses the second locking ball, so that the second locking ball partially enters the second positioning hole, so as to lock the rotating member on the fixed member; when the second button is in the pressed state, the second push-button inclined surface cancels the pressing effect on the second locking ball, so that the second locking ball escapes from the second positioning hole, and the locking of the rotating member is released, so that the rotating member can rotate relative to the fixed member; The second restoring member acts on the second button and is used to apply a force to the second button to restore it from the pressed state to the released state.

9. The flip bracket according to claim 8, characterized in that: The fixing member comprises a sleeve, and the second positioning hole is provided on the inner wall of the sleeve; and / or The rotating member includes a shaft rod having an axial hole extending through the shaft rod to one end thereof in an axial direction; the second through hole is arranged on the outer peripheral wall of the shaft rod and is connected to the axial hole; the second button is arranged in the axial hole and can be moved along the axial direction of the axial hole to switch between the pressed state and the released state.

10. The flip bracket according to claim 9, characterized in that: The second button includes a rod portion inserted into the axial hole and a pressing portion exposed outside the axial hole, the rod portion includes a thin diameter section, a thick diameter section and a truncated cone section for transitionally connecting the thin diameter section and the thick diameter section, the thin diameter section is closer to the pressing portion relative to the thick diameter section, the small diameter end of the truncated cone section is connected to the thin diameter section, the large diameter end of the truncated cone section is connected to the thick diameter section, and the outer peripheral surface of the truncated cone section forms the second push-against inclined surface.

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