CN219715914U - Expansion joint and shooting equipment - Google Patents

Abstract

The utility model relates to an expansion joint and shooting equipment. The expansion joint comprises a first base body and a locking mechanism, wherein the first base body is provided with an expansion interface and a plug-in connection part. The locking mechanism is arranged on the first base body and is provided with an operation part and a locking part, the operation part can be operated to link the locking part to move in different directions, and the locking part can be switched between a locking position and an unlocking position: when the locking part is positioned at the locking position, the locking part extends out of the inserting part; when the locking part is positioned at the unlocking position, the locking part is retracted into the inserting part. The expansion joint is simple and convenient to install and easy to detach, and can be quickly installed and detached.

Description

Expansion joint and shooting equipment

Technical Field

The utility model relates to the technical field of camera accessories, in particular to an expansion joint and shooting equipment.

Background

Shooting devices often have no camera accessory or have poor performance of the camera accessory, which cannot meet shooting requirements of users, so camera functions are often supplemented or perfected by the additional camera accessory during shooting, such as adding camera accessories including a microphone, a flash, a GPS locator, and the like. The cold boot can connect the camera accessory to the shooting equipment, so that the functions of the shooting equipment are richer, and the use experience of a user is improved. However, when the cold boot is assembled to the photographing apparatus, it is cumbersome to install and inconvenient to detach, and rapid installation and detachment cannot be achieved.

Disclosure of Invention

Based on this, an expansion joint is provided, which aims at realizing quick installation and disassembly.

An expansion joint, comprising:

the first base body is provided with an expansion interface and a plug-in part; and

the locking mechanism is arranged on the first substrate and is provided with an operation part and a locking part, the operation part can be operated to link the locking part to move in different directions, and the locking part can be switched between a locking position and an unlocking position:

when the locking part is positioned at the locking position, the locking part extends out of the inserting part;

when the locking part is positioned at the unlocking position, the locking part is retracted into the inserting part.

In one embodiment, the locking mechanism includes:

the pushing and pulling piece comprises a main body part and an operation part, wherein the operation part is arranged on the main body part, the main body part is provided with a first inclined guide part, and the first inclined guide part can move along with the operation part; and

the locking piece comprises a body part and a locking part, the locking part is arranged on the body part, the body part is provided with a second inclined guide part, and the second inclined guide part is matched with the first inclined guide part in a guiding way and can move along the first inclined guide part so that the locking part on the body part stretches out or contracts in.

In one embodiment, the operation part has a moving direction which is the same as the plugging direction of the plugging part, and the locking part is switched from the unlocking position to the locking position when the operation part moves along the moving direction.

In one embodiment, the locking member further includes a propping portion, where the propping portion is disposed on the body portion and is located on one side of the locking portion, and the propping portion may extend out of or retract into the plugging portion.

In one embodiment, the first base body comprises a top plate and a bottom cover, the bottom cover covers one side of the top plate to form an installation space, and the installation space accommodates the locking mechanism; the expansion interface is arranged on the top plate, the plug-in part is provided with a matching surface, the matching surface is formed on the other side of the top plate and is opposite to the bottom cover, the locking part can extend out of or retract into the matching surface, and the operation part extends out of the side wall of the bottom cover.

In one embodiment, the mating surface is disposed at one end of the top plate, two sides of one end of the top plate extend out of two side walls of the bottom cover, and two sides of one end of the first substrate form a step structure.

In one embodiment, the expansion joint further comprises: and the elastic ejection piece is compressed between the body part and the bottom cover.

In one embodiment, the expansion joint further comprises: the positioning structure is arranged between the main body part and the top plate; the inner surface of the top plate is provided with at least one positioning part, and the positioning structure can move along with the main body part and is matched with at least one positioning part in a positioning way so as to position the locking part at the locking position.

In one embodiment, the locking mechanism includes a rotating member rotatably disposed on the first base, the locking portion is disposed at one end of the rotating member, and the operating portion is disposed at the other end of the rotating member and extends out of the first base;

the locking mechanism further comprises an elastic reset piece, wherein the elastic reset piece is respectively connected with the rotating piece and the first base body and is used for maintaining the locking part at the locking position; or alternatively, the process may be performed,

the locking mechanism further comprises a magnetic reset piece, wherein the magnetic reset piece is arranged on at least one of the first base body and the rotating piece, and the magnetic reset piece is used for forming magnetic adsorption between the rotating piece and the first base body so as to maintain the locking part at the locking position.

In one embodiment, the rotating member is rotatably connected with the first base body through a rotating shaft, and the elastic restoring member is a torsion spring, and the torsion spring is sleeved on the rotating shaft.

In one embodiment, the first substrate comprises:

the bottom plate is provided with a groove and the expansion interface, and part of the groove bottom of the groove is arranged in a clearance way so as to extend out of the operation part; and

the cover plate covers the groove and forms an installation space with the bottom plate in a surrounding mode;

the locking mechanism is arranged in the installation space, the plug-in part is provided with a matching surface, the matching surface is formed on one side of the cover plate, which is opposite to the bottom plate, and the locking part can extend out of or retract into the matching surface.

In one embodiment, two sides of one end of the bottom plate are provided with step structures, and the groove is located between the two step structures.

In one embodiment, the cover plate is provided with an elastic abutting portion, and the elastic abutting portion protrudes out of the matching surface.

In one embodiment, the elastic abutting portion is a spring plate, and the spring plate includes an inclined portion, and the inclined portion is obliquely protruding in a direction opposite to the plugging direction of the plugging portion.

A photographing apparatus, comprising:

the camera comprises a first base body, a second base body and a first connecting piece, wherein the first base body comprises a camera host, a camera protection shell or a camera quick-release adapter; and

the expansion joint is the expansion joint, and the plug-in part of the expansion joint can be in plug-in fit with the mounting structure.

According to the expansion joint, the operation parts and the locking parts which are in linkage and have different movement directions are arranged, when the expansion joint is assembled on the second substrate, the plugging part of the first substrate is in plugging fit with the mounting structure of the second substrate, then the operation parts are controlled to move, so that the locking parts are moved to the locking position, and at the moment, the locking parts extend out of the plugging part, so that the mounting structure can be locked, and the expansion joint can be rapidly mounted on the second substrate; when the connector is detached, the operation part is controlled to move in the opposite direction, so that the locking part moves to the unlocking position, and at the moment, the locking part is retracted into the inserting part and can leave the mounting structure, and the expansion connector can be quickly detached from the second substrate. Therefore, the expansion joint is simple and convenient to install and easy to detach, and can be quickly installed and detached.

Drawings

FIG. 1 is a schematic structural view of an expansion joint according to an embodiment of the present utility model, wherein a locking portion is in an unlocked position;

FIG. 2 is another schematic view of the expansion joint of FIG. 1, with the locking portion in a locked position;

FIG. 3 is an exploded view of the expansion joint of FIG. 1;

FIG. 4 is a cross-sectional view of the expansion joint of FIG. 1;

FIG. 5 is a cross-sectional view of the expansion joint of FIG. 2;

FIG. 6 is another cross-sectional view of the expansion joint of FIG. 1;

FIG. 7 is another cross-sectional view of the expansion joint of FIG. 2;

FIG. 8 is a schematic structural view of an expansion joint according to another embodiment of the present utility model, wherein a locking portion is in an unlocked position;

FIG. 9 is another schematic view of the expansion joint of FIG. 8, with the locking portion in a locked position;

FIG. 10 is an exploded view of the expansion joint of FIG. 8;

FIG. 11 is a cross-sectional view of the expansion joint of FIG. 8;

FIG. 12 is a cross-sectional view of the expansion joint of FIG. 9;

fig. 13 is a partial cross-sectional view of a photographing apparatus in an embodiment of the utility model.

Reference numerals illustrate:

100-expansion joint; 110-a first matrix; 112-expansion interface; 114-a plug-in part; 116-mating surface; 120-locking mechanism; 122-an operation section; 124-a locking portion;

130-pushing and pulling piece; 132-a body portion; 134-a first diagonal guide; 136-arm; 138-labelling; 139-a first guide; 140-locking piece; 142-a body portion; 144-a second diagonal guide; 146-top; 150-top plate; 152-a first via; 154-step structure; 156-a second through hole; 158-a positioning part; 160-bottom cover; 162-a clearance; 170-elastic ejector; 172-positioning structure; 174-elastic locking piece; 176-topping beads;

180-rotating member; 182-elastic restoring member; 184-rotating shaft; 190-floor; 192-cover plate; 194-grooves; 196-resilient abutment; 198-inclined portion;

200-shooting equipment; 210-a second substrate; 212-mounting structure.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Referring to fig. 1 to 3, fig. 1 is a schematic structural view of an expansion joint according to an embodiment of the present utility model when a locking portion of the expansion joint is located at an unlocking position, fig. 2 is a schematic structural view of the locking portion of the expansion joint according to fig. 1 when the locking portion of the expansion joint is located at a locking position, fig. 3 is an exploded view of the expansion joint according to fig. 1, and an embodiment of the present utility model provides an expansion joint 100 including a first base 110 and a locking mechanism 120. The first base 110 has an expansion interface 112 and a plug portion 114, and the expansion interface 112 is used for installing a microphone, a flash lamp, a GPS locator and other camera accessories. When applied to the second substrate, the plugging portion 114 is used for plugging and matching with a mounting structure of the second substrate. The locking mechanism 120 is provided on the first base 110, and the locking mechanism 120 has an operation portion 122 and a locking portion 124. The operation portion 122 is operable to move the interlocking portion 124 in different directions, and the interlocking portion 124 is switchable between an unlocked position and a locked position:

as shown in fig. 1, when in the unlocked position, the locking portion 124 is retracted into the plugging portion 114 and can be separated from the mounting structure, so as to unlock the plugging engagement between the plugging portion 114 of the first substrate 110 and the mounting structure;

as shown in fig. 2, in the locked position, the locking portion 124 extends out of the plug portion 114 and is capable of locking with the mounting structure to lock the plug engagement between the plug portion 114 of the first substrate 110 and the mounting structure.

By arranging the operation part 122 and the locking part 124 which are linked and have different movement directions, when the connector is assembled on the second substrate, the plugging part 114 of the first substrate 110 is plugged and matched with the mounting structure of the second substrate, then the operation part 122 is controlled to move, so that the locking part 124 moves to a locking position, as shown in fig. 2, at the moment, the locking part 124 extends out of the plugging part 114, and the mounting structure can be locked, so that the connector 100 can be rapidly mounted on the second substrate; when the connector is detached, the operation portion 122 is controlled to move in the opposite direction, so that the locking portion 124 moves to the unlocking position, as shown in fig. 1, and at this time, the locking portion 124 is retracted into the inserting portion 114, so as to be separated from the mounting structure, and the connector 100 is further expanded and can be quickly detached from the second substrate. Therefore, the expansion joint 100 is simple and convenient to install, easy to detach, and capable of achieving rapid installation and detachment.

The locking mechanism 120 includes a pusher 130 and a locking member 140. The pusher 130 includes a main body 132 and an operation portion 122, and the operation portion 122 is provided on the main body 132. The main body 132 is provided with a first inclined guide 134, and the first inclined guide 134 is movable with the operation portion 122. The locking member 140 includes a body portion 142 and a locking portion 124, and the locking portion 124 is disposed on the body portion 142. The body portion 142 is provided with a second inclined guiding portion 144, and the second inclined guiding portion 144 is in guiding engagement with the first inclined guiding portion 134 and can move along the first inclined guiding portion 134, so that the locking portion 124 on the body portion 142 extends out or retracts in. By providing the first inclined guide portion 134 and the second inclined guide portion 144 that are in guiding engagement, the movement of the pushing member 130 in the preset direction is converted into the movement of the locking member 140 in other directions, and thus the locking portion 124 of the locking member 140 can be extended or retracted to be locked or separated from the second substrate.

Further, the operation portion 122 has a moving direction which is the same as the plugging direction of the plugging portion 114, and when the operation portion 122 moves in the moving direction, the locking portion 124 is switched from the unlocking position to the locking position; conversely, the operation portion 122 also has another moving direction opposite to the plugging direction of the plugging portion 114, and when the operation portion 122 moves in the moving direction, the locking portion 124 is switched from the locking position to the unlocking position. By the oblique setting of the first oblique guide portion 134, the plugging direction (inward plugging) of the plugging portion 114 and the operation direction (inward poking) of the operation portion 122 can be in the same direction, that is, when assembling, both the plugging portion 114 and the operation portion 122 are movable inward; and during disassembly, the plugging part 114 and the operation part 122 are both outwards movable, so that the logic of a user is met, the user can directly control the operation part 122 to realize disassembly and assembly, and the disassembly and assembly of the expansion joint 100 are more convenient for the user.

Referring to fig. 1 and 2, in the present embodiment, the plugging direction of the plugging portion 114 is leftward (inward plugging), and the locking operation direction of the operation portion 122 is leftward (inward toggling); conversely, the separation direction of the plugging portion 114 is rightward (outward pulling), and the unlocking direction of the operation portion 122 is also rightward (outward pulling). It will be appreciated that, in other embodiments, by changing the slant setting of the first slant guiding portion 134, the plugging direction (inwardly plugging) of the plugging portion 114 is opposite to the operation direction (outwardly toggling) of the operation portion 122, the plugging direction of the plugging portion 114 is leftward (inwardly plugging), and the operation direction of the locking of the operation portion 122 is rightward (outwardly toggling); conversely, the plug portion 114 is separated in the rightward direction (outward pulling), and the operation portion 122 is unlocked in the leftward direction (inward pulling).

In this embodiment, the movement of the pushing member 130 in the lateral direction may translate the movement of the locking member 140 in the longitudinal direction due to the guiding engagement of the first inclined guide portion 134 and the second inclined guide portion 144. When the pushing member 130 moves leftwards, the locking member 140 can move upwards along the first inclined guiding portion 134, so that the locking portion 124 protrudes upwards; when the pushing member 130 moves rightward, the locking member 140 can move downward along the first inclined guiding portion 134, so that the locking portion 124 extends downward. It should be noted that, in other embodiments, the first inclined guide portion 134 may also convert a lateral movement (left-right movement) of the pushing member 130 into a movement of the locking member 140 in the front-rear direction, or convert a movement of the pushing member 130 in the front-rear direction into a movement of the locking member 140 in the up-down direction (longitudinal direction).

Referring to fig. 4 and fig. 5 together with fig. 3, further, two arm portions 136 are disposed at one end of the main body 132 of the pushing member 130, and the two arm portions 136 are disposed at opposite intervals. The two first inclined guide portions 134 are disposed at opposite intervals, and each first inclined guide portion 134 is an inclined guide rib formed by extending an inner side surface of one arm 136 inwards, and the inclined guide rib is disposed obliquely upwards in a direction opposite to the plugging direction of the plugging portion 114. The two second inclined guide portions 144 are disposed in one-to-one correspondence with the two first inclined guide portions 134, and each second inclined guide portion 144 is an inclined guide groove disposed on one side surface of the body portion 142 of the locking member 140. The oblique guide rib is matched with the oblique guide groove in a guiding way, when the oblique guide rib moves along the inserting direction of the inserting part 114, the oblique guide groove moves obliquely upwards along the oblique guide rib, so that the locking part 124 extends upwards, as shown in fig. 5; conversely, when the oblique guide rib moves in the opposite direction of the plugging direction, the oblique guide groove moves obliquely downward along the oblique guide rib, so that the locking portion 124 retracts downward, as shown in fig. 4.

It should be noted that, in other embodiments, the first inclined guiding portion 134 may be disposed obliquely upward in the plugging direction of the plugging portion 114, and the second inclined guiding portion 144 is adapted to be disposed, and when the first inclined guiding portion 134 moves along the plugging direction, the second inclined guiding portion 144 moves obliquely downward along the first inclined guiding portion 134, so that the locking portion 124 retracts downward; conversely, when the first inclined guiding portion 134 moves in the opposite direction to the plugging direction, the second inclined guiding portion 144 moves obliquely upward along the first inclined guiding portion 134, so that the locking portion 124 protrudes upward. Moreover, in other embodiments, the first inclined guiding portion 134 may be an inclined guiding groove, and the second inclined guiding portion 144 is an inclined guiding protruding strip; alternatively, the first and second inclined guide portions 134 and 144 are inclined surfaces; alternatively, one of the first inclined guide portion 134 and the second inclined guide portion 144 is an inclined guide post, and the other is an inclined guide hole.

Referring to fig. 6 and 7, and referring to fig. 3 together, the locking member 140 further includes a supporting portion 146, and the supporting portion 146 is disposed on the main body 142 and located on one side of the locking portion 124. The abutment 146 can extend or retract into the plug 114 for abutment or release of the mounting structure. Because the abutting portion 146 and the locking portion 124 are both disposed on the body portion 142, that is, the abutting portion 146 abuts against the mounting structure while the locking portion 124 is locked with the mounting structure during assembly, the friction is increased, no looseness is ensured, and the connection stability of the plugging portion 114 of the first substrate 110 and the mounting structure of the second substrate is enhanced.

The first base 110 includes a top plate 150 and a bottom cover 160, and the bottom cover 160 is covered on one side of the top plate 150 to form an installation space, and the installation space accommodates the locking mechanism 120. The expansion interface 112 is disposed on the top plate 150, the plug portion 114 has a mating surface 116, the mating surface 116 is formed on the other side of the top plate 150 and is disposed opposite to the bottom cover 160, the locking portion 124 can extend or retract into the mating surface 116, and the operating portion 122 extends out of a side wall of the bottom cover 160.

In this embodiment, the mating surface 116 is disposed at one end of the top plate 150, two sides of one end of the top plate 150 extend out of two side walls of the bottom cover 160, and a step structure 154 is formed on two sides of one end of the first substrate 110, and the step structure 154 is used for being laterally inserted into the mounting structure. The step structure 154 is assembled with the side wall of the bottom cover 160 using the protruding portion of the top plate 150, and no additional arrangement is required, simplifying the structure. The step structure 154 can be laterally inserted into the mounting structure (clamping groove) to facilitate the assembly and separation of the two, and the clamping effect of the step structure 154 and the clamping groove can be further improved by the abutting part 146 abutting against the bottom of the clamping groove, and the step structure 154 and the clamping groove form a clamping surface to form a stable structure in cooperation with the abutting part 146. It should be noted that, in other embodiments, two sides of one end of the top plate 150 do not extend out of two side walls of the bottom cover 160, and no step structure 154 is formed on two sides of one end of the first base 110, and one end of the first base 110 may be inserted into an adapted mounting structure; alternatively, two side walls of the bottom cover 160 are provided with clamping convex strips, two corresponding sides of the mounting structure are provided with clamping side grooves, one end of the first substrate 110 is inserted into the adapted mounting structure, and meanwhile the clamping convex strips are in plug-in fit with the clamping side grooves.

Further, the mating surface 116 is provided with a first through hole 152 corresponding to the locking portion 124 and a second through hole 156 corresponding to the abutment portion 146, the locking portion 124 can move telescopically in the first through hole 152, and the abutment portion 146 can extend out of or retract into the plugging surface 114 through the second through hole 156. The side wall of the bottom cover 160 is provided with a space avoiding part 162 corresponding to the operation part 122, the operation part 122 extends out of the side wall of the bottom cover 160 through the space avoiding part 162, and the space avoiding part 162 provides an operation space for a user, so that the operation part 122 can move in the space avoiding part 162.

In this embodiment, the locking portion 124 may be, but not limited to, a locking pin structure, and the abutment portion 146 may be, but not limited to, a boss, and the locking portion 124 is disposed higher than the abutment portion 146. The operation portion 122 is provided on both sides of the main body 132, and is a toggle button. With reference to fig. 3, when the dial Niu Xiangzuo is dialed, the first inclined guiding portion 134 of the pushing member 130 is pushed leftwards, and the second inclined guiding portion 144 of the locking member 140 is jacked up, so that the longitudinal conversion of the transverse movement is realized.

Referring to fig. 2, in order to facilitate viewing of the position of the dial knob, both sides of the main body 134 are provided with marks 138, and the marks 138 are adjacent to the operation portion 122. When the pulling button is pushed in, the mark 138 is exposed through the clearance part 162 and can be observed by a user, and the expansion joint 100 is in a locking state at the moment; when the dial knob is pulled out, the mark 138 is blocked by the side wall of the bottom cover 160, and the expansion joint 100 is in an unlocked state. To make the mark 138 more conspicuous, the mark 138 may be set to red. Thus, a user may determine the different states of the expansion joint 100 by observing whether the indicia 138 are present.

Referring to fig. 3, the pushing member 130 further includes a first guiding portion 139, where the first guiding portion 139 is disposed on a side of the main body 132 facing the top plate 150 and extends in the plugging direction. The inner surface of the top plate 150 is provided with corresponding second guide portions (not shown) which are in guiding engagement with the first guide portions 139 for guiding the first guide portions 139 to move in the lateral direction and thus the pushing member 130 to move in the lateral direction. In this embodiment, the number of the first guiding portions 139 may be, but is not limited to, two, and each first guiding portion 139 is a guiding groove provided on a surface of the main body 132 facing the top plate 150, and the guiding groove extends from one end of the main body 132 to the arm 136. The inner surface of the top plate 150 is provided with corresponding guide bars (not shown) which are engaged with the guide grooves.

Referring to fig. 6 and 7, the expansion joint 100 further includes an elastic ejection member 170, where the elastic ejection member 170 is compressed between the body portion 142 and the bottom cover 160, and synchronously ejects the locking member 140, so that the locking member 140 can more easily complete the motion reversing. In the present embodiment, the elastic ejection member 170 is a spring, but is not limited thereto.

The expansion joint 100 further includes a positioning structure 172, where the positioning structure 172 is disposed between the main body 142 and the top plate 150. The inner surface of the top plate 150 is provided with at least one positioning portion 158, and the positioning structure 172 can move along with the main body 142 to be matched with the at least one positioning portion 158 in a positioning manner so as to position the locking portion 124 in the locking position. The positioning structure 172 cooperates with the positioning portion 158 to ensure that the locking mechanism 120 does not automatically retract, thereby disabling the locking mechanism 120, and the structure provides a more distinct locking feel to the user.

Referring to fig. 3, in this embodiment, the positioning structure 172 includes an elastic locking member 174 and a top bead 176, and the top bead 176 is elastically retractable. The body 142 further includes a mounting groove (not numbered) in which the elastic locking member 174 is received, and a top bead 176 connected to one end of the elastic locking member 174 and extending at least partially out of the mounting groove. The inner surface of the top plate 150 is provided with two positioning portions 158, wherein one positioning portion 158 is arranged corresponding to a locking position, the other positioning portion 158 is arranged corresponding to an unlocking position, and the top bead 176 can abut against the first positioning portion 158 or the second positioning portion 158 to position the locking portion 124 at the locking position or the unlocking position.

Referring to fig. 8 to 12, fig. 8 is a schematic structural view of a locking portion of an expansion joint according to another embodiment of the present utility model in an unlocked position, fig. 9 is a schematic structural view of the locking portion of the expansion joint in fig. 8 in a locked position, fig. 10 is an exploded view of the expansion joint in fig. 8, fig. 11 is a cross-sectional view of the expansion joint in fig. 8, and fig. 12 is a cross-sectional view of the expansion joint in fig. 9; the expansion joint 100 of the present embodiment differs from the expansion joint 100 of the above embodiment as follows:

in this embodiment, the locking mechanism 120 includes a rotating member 180 and a resilient return member 182. The rotating member 180 is rotatably disposed on the first base 110, the locking portion 124 is disposed at one end of the rotating member 180, and the operating portion 122 is disposed at the other end of the rotating member 180 and extends out of the first base 110. The elastic restoring member 182 is connected to the rotating member 180 and the first base 110, respectively, and is used for maintaining the locking portion 124 in the locking position. Pressing the operation part 122, the rotating member 180 rotates, and the locking part 124 at one end of the rotating member retracts into the inserting part 114 to unlock the locking part; then the locking part 124 is inserted into the second base body, and after the locking part is inserted, the pressing is released, and the locking part is reset and jacked up to be locked. It should be noted that, in other embodiments, the elastic restoring member 182 of the locking mechanism 120 may be replaced by a magnetic restoring member (not shown), that is, the locking mechanism 120 further includes a magnetic restoring member disposed on at least one of the first base 110 and the rotating member 180, and the magnetic restoring member is used to form magnetic attraction between the rotating member 180 and the first base 110, so as to maintain the locking portion 124 in the locking position, and obviously, the magnetic restoring member may also achieve the technical effect of the elastic restoring member 182. Further, the first base 110 is provided with a magnetic reset element, and the rotating element 180 is provided with another magnetic reset element near the operating portion 122, and the two magnetic reset elements are oppositely arranged to attract each other.

In this embodiment, the rotating member 180 is rotatably connected to the first base 110 through a rotating shaft 184, and the elastic restoring member 182 is a torsion spring, which is sleeved on the rotating shaft 184. It will be appreciated that in other embodiments, the resilient return member 182 may be a tension spring that also maintains the locking portion 124 in the locked position.

The first substrate 110 includes a bottom plate 190 and a cover plate 192. The bottom plate 190 is provided with a groove 194 and an expansion joint 112, and part of the bottom of the groove 194 is arranged in a clearance manner for the operation part 122 to extend. The cover plate 192 covers the recess 194 and encloses the bottom plate 190 to form an installation space. The locking mechanism 120 is disposed in the installation space, the plugging portion 114 has a mating surface 116, the mating surface 116 is formed on a side of the cover 192 facing away from the bottom plate 190, and the locking portion 114 can extend or retract into the mating surface 116.

Further, the mating surface 116 is provided with a first through hole 152 corresponding to the locking portion 124, and the locking portion 124 can move telescopically in the first through hole 152.

The cover plate 192 is provided with an elastic abutting portion 196, and the elastic abutting portion 196 protrudes from the matching surface 116 and is used for elastically abutting against the bottom of the clamping groove. During the plugging process, the elastic abutment 196 is compressed to form a reaction force, ensuring that there is sufficient interaction force between the plugging portion 114 of the expansion joint 100 and the mounting structure of the second substrate, and ensuring that the expansion joint will not loosen. In this embodiment, the elastic abutting portion 196 is a spring, the spring includes an inclined portion 198, the inclined portion 198 is obliquely protruded in a direction opposite to the plugging direction of the plugging portion 114, so that the spring is convenient to be inserted into the mounting structure, and the spring is formed by blanking the cover plate 192, so that additional setting is not needed, and processing and manufacturing are convenient.

In this embodiment, the two sides of one end of the bottom plate 190 are provided with the step structures 154, the groove 194 is located between the two step structures 154, and the step structures 154 are used for being laterally inserted into the mounting structure. The step structure 154 can be laterally inserted into the mounting structure (clamping groove) to facilitate the assembly and separation of the two, and the elastic abutting portion 196 abuts against the bottom of the clamping groove, so that the clamping effect of the step structure 154 and the clamping groove can be further improved, and the step structure 154 and the clamping groove form a clamping surface to form a stable structure in cooperation with the elastic abutting portion 196. It should be noted that, in other embodiments, both sides of one end of the bottom plate 190 are not provided with the step structures 154, and one end of the first base 110 may be inserted into the adapted mounting structure as well; alternatively, two sides of one end of the bottom plate 190 are provided with clamping convex strips, two corresponding sides of the mounting structure are provided with clamping side grooves, one end of the first substrate 110 is inserted into the adaptive mounting structure, and meanwhile the clamping convex strips are in plug-in fit with the clamping side grooves; alternatively, both sides of one end of the cover plate 192 are extended from both sides of the base plate 190 to form a stepped structure.

As for other aspects of the expansion joint 100 of the present embodiment, which are substantially the same as those of the expansion joint 100 of the above embodiment, reference may be made to the description of the above embodiment for details, and details are not repeated herein.

Referring to fig. 13, fig. 13 shows a partial cross-sectional view of a photographing apparatus according to an embodiment of the present utility model, where the photographing apparatus 200 provided in an embodiment of the present utility model includes a second substrate 210 and an expansion joint 100, and the specific structure of the expansion joint 100 refers to the above embodiment, and since the photographing apparatus 200 of the present embodiment adopts all the technical solutions of the above embodiment, all the beneficial effects brought by the technical solutions of the above embodiment are also provided, and will not be described in detail herein. The second substrate 210 is provided with a mounting structure 212, and the plugging portion 114 of the expansion joint 100 can be plugged with the mounting structure 212, so that the expansion joint 100 can be quickly mounted or dismounted on the second substrate 210.

In this embodiment, the second substrate 210 includes a camera host, the mounting structure 212 is a slot, and the plugging portion 114 of the first substrate 110 of the expansion joint 100 can be laterally inserted into the slot. It should be noted that, in other embodiments, the second substrate 210 may also be a camera protection shell, a camera quick-release adapter, or a shooting bracket, etc., and the expansion joint 100 may also be quickly assembled to the camera protection shell, the camera quick-release adapter, or the shooting bracket, etc.

In this embodiment, the camera host is a motion camera, and the clamping groove is disposed at the bottom of the motion camera, so that the expansion interface 112 of the expansion joint 100 is located at one side of the motion camera. The step structure 154 at one end of the first base 110 of the expansion joint 100 forms a clamping surface with the clamping groove 212, and cooperates with the abutting portion 146 or the elastic abutting portion 196 to form a stable structure.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (15)

1. An expansion joint, comprising:

the first base body is provided with an expansion interface and a plug-in part; and

the locking mechanism is arranged on the first substrate and is provided with an operation part and a locking part, the operation part can be operated to link the locking part to move in different directions, and the locking part can be switched between a locking position and an unlocking position:

when the locking part is positioned at the locking position, the locking part extends out of the inserting part;

when the locking part is positioned at the unlocking position, the locking part is retracted into the inserting part.

2. The expansion joint of claim 1, wherein said locking mechanism comprises:

the pushing and pulling piece comprises a main body part and an operation part, wherein the operation part is arranged on the main body part, the main body part is provided with a first inclined guide part, and the first inclined guide part can move along with the operation part; and

the locking piece comprises a body part and a locking part, the locking part is arranged on the body part, the body part is provided with a second inclined guide part, and the second inclined guide part is matched with the first inclined guide part in a guiding way and can move along the first inclined guide part so that the locking part on the body part stretches out or contracts in.

3. The expansion joint according to claim 2, wherein the operating portion has a moving direction that is the same as the plugging direction of the plugging portion, and the locking portion is switched from the unlocking position to the locking position when the operating portion moves in the moving direction.

4. The expansion joint of claim 2, wherein the locking member further comprises a butt portion disposed on the body portion and located on a side of the locking portion, the butt portion being extendable or retractable into the plug portion.

5. The expansion joint of claim 2, 3 or 4, wherein,

the first base body comprises a top plate and a bottom cover, the bottom cover is covered on one side of the top plate to form an installation space, and the installation space accommodates the locking mechanism;

the expansion interface is arranged on the top plate, the plug-in part is provided with a matching surface, the matching surface is formed on the other side of the top plate and is opposite to the bottom cover, the locking part can extend out of or retract into the matching surface, and the operation part extends out of the side wall of the bottom cover.

6. The expansion joint of claim 5, wherein said mating surface is disposed at one end of said top plate, two sides of one end of said top plate extend beyond two side walls of said bottom cover, and a stepped structure is formed on two sides of one end of said first base.

7. The expansion joint of claim 5, further comprising:

and the elastic ejection piece is compressed between the body part and the bottom cover.

8. The expansion joint of claim 5, further comprising:

the positioning structure is arranged between the main body part and the top plate;

the inner surface of the top plate is provided with at least one positioning part, and the positioning structure can move along with the main body part and is matched with at least one positioning part in a positioning way so as to position the locking part at the locking position.

9. The expansion joint of claim 1, wherein the expansion joint comprises a plurality of expansion joints,

the locking mechanism comprises a rotating piece, the rotating piece is rotatably arranged on the first base body, the locking part is arranged at one end of the rotating piece, and the operating part is arranged at the other end of the rotating piece and extends out of the first base body;

the locking mechanism further comprises an elastic reset piece, wherein the elastic reset piece is respectively connected with the rotating piece and the first base body and is used for maintaining the locking part at the locking position; or alternatively, the process may be performed,

the locking mechanism further comprises a magnetic reset piece, wherein the magnetic reset piece is arranged on at least one of the first base body and the rotating piece, and the magnetic reset piece is used for forming magnetic adsorption between the rotating piece and the first base body so as to maintain the locking part at the locking position.

10. The expansion joint of claim 9, wherein the rotating member is rotatably connected to the first base via a rotating shaft, and the elastic restoring member is a torsion spring, and the torsion spring is sleeved on the rotating shaft.

11. The expansion joint of claim 9 or 10, wherein the first substrate comprises:

the bottom plate is provided with a groove and the expansion interface, and part of the groove bottom of the groove is arranged in a clearance way so as to extend out of the operation part; and

the cover plate covers the groove and forms an installation space with the bottom plate in a surrounding mode;

the locking mechanism is arranged in the installation space, the plug-in part is provided with a matching surface, the matching surface is formed on one side of the cover plate, which is opposite to the bottom plate, and the locking part can extend out of or retract into the matching surface.

12. The expansion joint of claim 11, wherein the two sides of one end of the base plate are provided with step structures, and the groove is located between the two step structures.

13. The expansion joint of claim 11, wherein the cover plate is provided with an elastic abutment protruding from the mating surface.

14. The expansion joint of claim 13, wherein the elastic abutment is a spring plate, the spring plate comprising an inclined portion that protrudes obliquely in a direction opposite to the plugging direction of the plugging portion.

15. A photographing apparatus, characterized by comprising:

the camera comprises a first base body, a second base body and a first connecting piece, wherein the first base body comprises a camera host, a camera protection shell or a camera quick-release adapter; and

an expansion joint, wherein the expansion joint is an expansion joint according to any one of claims 1 to 14, and a plug part of the expansion joint can be in plug fit with the mounting structure.