CN116382015A - Connecting device - Google Patents

Abstract

A connection device, comprising: the device comprises a first connecting piece, a middle connecting piece, a fourth connecting piece and a quick locking piece, wherein the first connecting piece is provided with a first quick-dismantling part; the middle connecting piece is provided with a second quick-dismantling part and a third quick-dismantling part, and the second quick-dismantling part can be connected with the first quick-dismantling part in a quick-dismantling way; the fourth connecting piece is provided with a fourth quick-dismantling part which can be connected with the third quick-dismantling part in a quick-dismantling way; the quick lock comprises: the first quick locking piece and the second quick locking piece, first quick locking piece are used for locking or unblock the connection between first quick detach portion and the second quick detach portion, and the second quick locking piece is used for locking or unblock the connection between fourth quick detach portion and the third quick detach portion. Compared with the prior art adopting a mode of clamping the ball head by a clamp, the device can improve the assembly efficiency of the first waterproof shell and the second waterproof shell and simplify the operation of operators.

Description

Connecting device

Technical Field

The invention relates to the technical field of underwater photographic equipment, in particular to a connecting device capable of quickly connecting a camera waterproof shell with an external display screen waterproof shell.

Background

When taking a picture, a photographer views and composes a picture by observing a viewfinder provided by the camera. The viewer is generally fixed with the position of the machine body, and the position can not be adjusted. When photographing underwater, a camera (comprising a viewer) needs to be placed in a special waterproof shell, sealed and waterproof, and subjected to water pressure.

In order to facilitate underwater framing and composition, a photographer usually selects a camera to be matched with a 5-inch or 7-inch external display screen, places the camera in a special display screen waterproof shell, transmits camera signals or pictures through an HDMI/SDI waterproof wire, and fixes the display screen waterproof shell on the upper part of the camera waterproof shell through a connecting device so as to facilitate the photographer to observe.

Typically, the connection device is connected with the waterproof camera shell and the waterproof display shell through bolts. When a photographer assembles, the waterproof shell of the display screen is inverted, one end of the connecting device is connected with the bottom of the waterproof shell of the display screen by using a screw, and then the waterproof shell of the display screen is vertically arranged above the waterproof shell of the camera for installation; at this time, the waterproof shell of the display screen and the connecting device are required to be supported, the mounting hole at the other end of the waterproof shell is aligned with the threaded hole of the waterproof shell of the camera, and one hand is vacated to screw down the screw for fixed connection. And when the disassembly is performed, the reverse operation is performed.

Therefore, when the connecting device is used for assembling and disassembling, the whole process is complicated.

Disclosure of Invention

The invention mainly solves the technical problem of providing the connecting device for the waterproof shell of the display screen and the waterproof shell of the camera, which can be connected quickly and is convenient to operate.

The application provides a connecting device, including:

the first connecting piece is used for connecting the first waterproof shell and is provided with a first quick-dismantling part;

the middle connecting piece is provided with a second quick-dismantling part and a third quick-dismantling part, and the second quick-dismantling part can be connected with the first quick-dismantling part in a quick-dismantling way;

the fourth connecting piece is used for connecting the second waterproof shell and is provided with a fourth quick-dismantling part which can be connected with the third quick-dismantling part in a quick-dismantling way;

a quick lock comprising: the first quick locking piece is arranged on the first connecting piece and/or the second connecting piece, and is used for locking or unlocking the connection between the first quick-dismantling part and the second quick-dismantling part; the second quick locking piece is arranged on the third connecting piece and/or the fourth connecting piece, and is used for locking or unlocking the connection between the fourth quick-dismantling part and the third quick-dismantling part.

In one embodiment, the middle connector comprises: the second connecting piece, third connecting piece and swing subassembly, the second connecting piece with third connecting piece interconnect, second quick detach portion is located the second connecting piece, third quick detach portion is located the third connecting piece, swing subassembly is used for making the second connecting piece for the third connecting piece is around the swing axis swing.

In one embodiment, the middle connector further comprises: and the rotating assembly is arranged on the swinging assembly, the second connecting piece is arranged on the rotating assembly, the rotating assembly is used for enabling the second connecting piece to rotate around a rotating axis relative to the swinging assembly, and the rotating axis is intersected with the swinging axis.

In one embodiment, the swing assembly includes: the swinging piece is arranged on the third connecting piece in a swinging way through the swinging shaft, and the second connecting piece is connected with the swinging piece or the swinging shaft so as to drive the second connecting piece to swing around a swinging axis relative to the third connecting piece; the rotating assembly is arranged on the swinging piece or the swinging shaft, the rotating assembly can enable the second connecting piece to rotate around the rotating shaft relative to the swinging piece, and the axial lead of the swinging shaft coincides with the swinging shaft.

In one embodiment, the swing assembly further comprises: the swing locking unit is arranged on the second connecting piece or the third connecting piece, and is used for locking the swing shaft when the second connecting piece swings around the swing axis to a preset swing position relative to the third connecting piece.

In one embodiment, the swing assembly further comprises: and the swing damping unit is arranged between the swinging piece and the third connecting piece.

In one embodiment, the swing assembly further comprises: and the swinging sealing unit is arranged between the swinging piece and the third connecting piece.

In one embodiment, the rotating assembly includes: the rotating shaft is rotatably arranged on the swinging piece, the second connecting piece is fixed on the rotating shaft, so that the second connecting piece rotates around the rotating axis relative to the swinging piece, and the axial lead of the rotating shaft coincides with the rotating axis.

In one embodiment, the rotating assembly further comprises: and the rotation damping unit is arranged between the second connecting piece and the swinging piece.

In one embodiment, the rotating assembly further comprises: and the rotary sealing unit is arranged between the second connecting piece and the swinging piece.

According to the above embodiment, the connecting device includes: the waterproof device comprises a first connecting piece, a middle connecting piece, a fourth connecting piece and a quick locking piece, wherein the first connecting piece is used for connecting a first waterproof shell, and the first connecting piece is provided with a first quick-dismantling part; the middle connecting piece is provided with a second quick-dismantling part and a third quick-dismantling part, and the second quick-dismantling part can be connected with the first quick-dismantling part in a quick-dismantling way; the fourth connecting piece is used for connecting the second waterproof shell, the fourth connecting piece is provided with a fourth quick-dismantling part, and the fourth quick-dismantling part can be connected with the third quick-dismantling part in a quick-dismantling way; the quick lock comprises: the first quick locking piece is arranged on the first connecting piece and/or the second connecting piece, and is used for locking or unlocking the connection between the first quick-dismantling part and the second quick-dismantling part; the second quick locking piece is arranged on the third connecting piece and/or the fourth connecting piece, and is used for locking or unlocking the connection between the fourth quick-dismantling part and the third quick-dismantling part. When the waterproof device is used, an operator firstly connects the first connecting piece with the first waterproof shell, connects the fourth connecting piece with the second waterproof shell, then rapidly connects the third rapid-disassembly part of the middle connecting piece with the fourth rapid-disassembly part of the fourth connecting piece, and rapidly locks and fixes the third rapid-disassembly part and the fourth rapid-disassembly part through the second rapid-locking piece; finally, the first waterproof shell is supported by both hands and is connected with the second quick-release part in a quick-release manner through the first quick-release part, and the other hand can operate the first quick-release part to lock the connection between the first quick-release part and the second quick-release part, so that the quick connection between the first waterproof shell and the second waterproof shell is realized.

Drawings

FIG. 1 is a front view of a connection device provided herein;

FIG. 2 is a perspective view of the connection device provided herein;

FIG. 3 is an exploded view of the connection device provided herein;

FIG. 4 is a top view of the connection device provided herein;

FIG. 5 is a cross-sectional view taken at A-A of FIG. 4;

FIG. 6 is a cross-sectional view at B-B in FIG. 4;

FIG. 7 is an exploded view of the first coupling mechanism provided herein;

FIG. 8 is an exploded view of the center connector provided herein;

FIG. 9 is an exploded view of a second attachment mechanism provided herein;

fig. 10 is a schematic structural view of a stand device for connecting a waterproof case of a display screen and a waterproof case of a camera according to the prior art.

Reference numerals:

a first connector 10, a first quick release portion 110, a first mounting hole 111, a first bolt 11;

the middle connector 20, the second connector 21, the second quick release portion 210, the third connector 22, the support arm 221, the swing shaft hole 222, the third quick release portion 220, the swing assembly 23, the swing member 231, the mounting hole 2311, the first mounting groove 2312, the rotation shaft hole 2313, the swing shaft 232, the swing locking unit 233, the swing locking handle 2331, the holding collar 2332, the pull rod 2333, the holding arm 2334, the swing damping unit 234, the swing sealing unit 235, the rotation assembly 24, the rotation shaft 241, the screw 242, the rotation damping unit 243, the rotation sealing unit 244, the rotation shaft mounting groove 2411, the rotation shaft seal ring 2412;

a fourth connecting member 30, a fourth quick release portion 310, a second mounting hole 311, and a second bolt 31;

the quick lock 40, the first quick lock 41, the first handle 411, the first fixed block 412, the first disc spring 413, the first rotating shaft 414, the first connecting shaft 415, the first locking block 416, the first spring 417 and the second quick lock 42;

the swing axis L1, the rotation axis L2 and the limit point M.

Detailed Description

The invention will be described in further detail below with reference to the drawings by means of specific embodiments. Wherein like elements in different embodiments are numbered alike in association. In the following embodiments, numerous specific details are set forth in order to provide a better understanding of the present application. However, one skilled in the art will readily recognize that some of the features may be omitted, or replaced by other elements, materials, or methods in different situations. In some instances, some operations associated with the present application have not been shown or described in the specification to avoid obscuring the core portions of the present application, and may not be necessary for a person skilled in the art to describe in detail the relevant operations based on the description herein and the general knowledge of one skilled in the art.

Furthermore, the described features, operations, or characteristics of the description may be combined in any suitable manner in various embodiments. Also, various steps or acts in the method descriptions may be interchanged or modified in a manner apparent to those of ordinary skill in the art. Thus, the various orders in the description and drawings are for clarity of description of only certain embodiments, and are not meant to be required orders unless otherwise indicated.

The numbering of the components itself, e.g. "first", "second", etc., is used herein merely to distinguish between the described objects and does not have any sequential or technical meaning. The terms "coupled" and "connected," as used herein, are intended to encompass both direct and indirect coupling (coupling), unless otherwise indicated.

Such as cameras or video cameras that typically have a display screen that is itself small in screen size and low in resolution, resulting in an insufficiently sharp display, and therefore, often have a high resolution display screen externally connected to the camera or video camera. Of course, this type of display has the functions of framing and composition. Meanwhile, when underwater photography is carried out, the camera or the video camera can be externally connected with the display screen, at the moment, the external display screen is hermetically installed in the first waterproof shell, and the camera or the video camera is hermetically installed in the second waterproof shell.

As shown in fig. 10, fig. 10 is a schematic structural view of a connection device of a waterproof case of a display screen and a waterproof case of a camera, which is used in the prior art, and includes: the camera waterproof shell 100 and the external display screen waterproof shell 200 are respectively installed on the camera waterproof shell 100 and the external display screen waterproof shell 200, and the two bulbs 1 can be simultaneously locked or loosened by rotating the handles 4 on the locking screw 3 of the clamp 2. In the installation process, one hand is required to drag the waterproof shell 200 of the display screen above and the clamp 2 in the middle, and concave spherical surfaces at two ends of the clamp 2 are aligned with the upper ball head 1 and the lower ball head 1. The other hand rotates the locking handle 4, and the clamp 2 is closed to clamp the two ball heads 1 through a thread mechanism arranged between the locking handle 4 and the locking screw 3, so that the initial position and the angle of the display screen waterproof shell 200 are fixed. When the relative position is further adjusted, one hand holds the waterproof shell 200 of the display screen first, the right hand releases the locking handle 4 properly, and the clamp 2 is screwed up again through the locking handle 4 after the height or angle of the display screen is adjusted.

The weight supported by the hand comprises the weight of the display screen (including the battery) and the weight of the waterproof shell of the display screen, so that the weight is laborious; in addition, the locking force is also larger, and the self weight of the display screen and the waterproof shell and the bending moment force generated by the self weight are overcome by applying the friction force generated by the concave-convex spherical surfaces at the upper part and the lower part. Therefore, the whole installation and adjustment process can be complicated, two hands are required to be flexibly matched, and the upper display screen and the waterproof shell of the display screen can fall down due to slight distraction, so that accidental collision or damage can occur.

Referring to fig. 1-3, the connection device provided in the present application is mainly used for quick connection between a waterproof camera shell and an external waterproof display shell, and the connection device includes: a first connector 10, a middle connector 20, a fourth connector 30 and a quick lock 40.

The first connector 10 is used for connecting a first waterproof case, which is a waterproof case for sealing and installing an external display screen, and the first connector 10 is provided with a first quick-release portion 110.

In one embodiment, as shown in fig. 7, the first connector 10 further includes: the first bolts 11 are provided with first mounting holes 111 on the first connecting piece 10, the first waterproof shell is further provided with first threaded holes on the surface, the first threaded holes correspond to the first mounting holes 111 one by one, and the first threaded holes adopt a blind hole design mode to prevent moisture from entering the first waterproof shell during use. The plurality of first bolts 11 penetrate the plurality of first mounting holes 111, respectively, and are screwed into the plurality of first screw holes to connect the first connector 10 with the first waterproof case.

In this embodiment, the first connector 10 and the first waterproof case are respectively independent structures, however, in other embodiments, the first connector 10 may be a part of the first waterproof case, or the first connector 10 may not be provided, and only the first quick release portion 110 may be provided on the first waterproof case.

The middle connecting piece 20 has a second quick-release portion 210 and a third quick-release portion 220, and the second quick-release portion 210 can be quickly connected to the first quick-release portion 110.

In some embodiments, the second quick release portion 210 and the first quick release portion 110 may be connected by one of a snap-fit connection, a plug-in connection, a screw-fit connection, etc. The connection manner between the second quick release portion 210 and the first quick release portion 110 is not limited in this application.

The fourth connecting piece 30 is used for connecting a second waterproof shell, which is a waterproof shell for sealing and installing a camera or a video camera, the fourth connecting piece 30 is provided with a fourth quick-dismantling part 310, and the fourth quick-dismantling part 310 can be connected with the third quick-dismantling part 220 in a quick-dismantling way.

Similarly, the fourth quick release portion 310 and the third quick release portion 220 may be connected by one of a snap connection, a plug connection, a screw connection, etc. The connection manner between the fourth quick release portion 310 and the third quick release portion 220 is not limited in this application.

In one embodiment, as shown in fig. 9, the fourth connecting member 30 further includes: the second bolts 31 are provided with the second mounting holes 311 on the fourth connecting piece 30, the second waterproof shell is further provided with the second threaded holes on the surface, the second threaded holes correspond to the second mounting holes 311 one by one, and the second threaded holes can also adopt a blind hole design mode to prevent water from entering the second waterproof shell during use. The plurality of second bolts 31 penetrate through the plurality of second mounting holes 311, respectively, and are screwed into the plurality of second screw holes, so that the fourth connecting member 30 is connected with the second waterproof case.

In this embodiment, the fourth connecting member 30 and the second waterproof case are also independent structures, however, in other embodiments, the fourth connecting member 30 may be a part of the second waterproof case, or the fourth connecting member 30 may not be provided, and only the fourth quick release portion 310 may be provided on the second waterproof case.

The quick lock 40 includes: a first quick lock 41 and a second quick lock 42, the first quick lock 41 being mounted on the first connector 10 and/or the second connector 21, the first quick lock 41 being adapted to lock or unlock the connection between the first quick release portion 110 and the second quick release portion 210; the second connector 42 is mounted on the third connector 22 and/or the fourth connector 30, and the second quick lock 42 is used to lock or unlock the connection between the fourth quick release portion 310 and the third quick release portion 220.

The locking or unlocking manner of the first quick locking member 41 may be locked or unlocked by a locking manner, a locking manner of a latch, or the like, according to the quick-release connection manner between the first quick-release portion 110 and the second quick-release portion 210, and the locking or unlocking manner of the first quick locking member 41 is not limited. Similarly, the locking or unlocking manner of the second quick locking member 42 may be different according to the quick release connection manner between the fourth quick release portion 310 and the third quick release portion 220, and may also be locking or unlocking by a locking manner, or a locking manner of a latch, or the like, which is not limited to the locking or unlocking manner of the second quick locking member 42.

In actual use, the operator connects the first connector 10 with the first waterproof case, connects the fourth connector 30 with the second waterproof case, holds the first waterproof case with one hand (e.g., left hand) of the operator, connects the first waterproof case with the middle connector 20 through the quick-release portion 110 and the quick-release portion 210, and operates the first quick-lock 41 with the other hand (e.g., right hand) to lock the connection between the first quick-release portion 110 and the second quick-release portion 210, holds the second waterproof case with one hand of the operator, and connects the second waterproof case with the third quick-release portion 220 through the fourth quick-release portion 310, and operates the second quick-lock 42 with the other hand to lock the connection before the fourth quick-release portion 310 and the third quick-release portion 220, thereby connecting the first waterproof case with the second waterproof case. Compared with the mode of clamping the ball head by the clamp in the prior art, the connecting device provided by the application can effectively improve the assembly efficiency and simplify the operation of operators.

As shown in fig. 1-3 and 5, the middle connector 20 further includes: the second connecting piece 21, the third connecting piece 22 and the swinging component 23, the second connecting piece 21 and the third connecting piece 22 are connected with each other, the second quick-release part 210 is arranged on the second connecting piece 21, the third quick-release part 220 is arranged on the third connecting piece 22, and the swinging component 23 is used for enabling the second connecting piece 21 to swing around the swinging axis L1 relative to the third connecting piece 22. The second connecting piece 21 swings around the swinging axis L1 relative to the third connecting piece 22 through the swinging assembly 23, so that the first waterproof shell can be synchronously driven to swing around the swinging axis L1, and the angle of the external display screen can be changed, so that the use requirement of a user is met.

As shown in fig. 5, the middle connector 20 further includes: the rotating assembly 24 is mounted on the swinging assembly 23, the second connecting piece 21 is mounted on the rotating assembly 24, and the rotating assembly 24 is used for enabling the second connecting piece 21 to rotate around the rotating axis L2 relative to the swinging assembly 23, so that the angle of the external display screen can be further adjusted.

In an embodiment, the rotation axis L2 and the swing axis L1 are in the same plane but intersect, so that the external display screen can realize two-degree-of-freedom angle adjustment to meet the use requirement of a user.

In the present embodiment, the rotation axis L2 and the swing axis L1 are perpendicular to each other.

As shown in fig. 5 and 6, the swing assembly 23 includes: the swinging member 231 and the swinging shaft 232, the swinging member 231 is swingably mounted on the third connecting member 22 through the swinging shaft 232, and the second connecting member 21 is connected with the swinging member 231 or the swinging shaft 232 so as to drive the second connecting member 21 to swing around the swinging axis L1 relative to the third connecting member 22. In the present embodiment, the swinging member 231 can swing around the axis of the swinging shaft 232, and the second connecting member 21 is connected to the swinging member 231. The rotation unit 24 is mounted on the swinging member 231, and the rotation unit 24 can rotate the second connecting member 21 relative to the swinging member 231 about the rotation axis L2, and the axis line of the swinging shaft 232 coincides with the swinging axis L1.

In this embodiment, the third connecting member 22 has a U-shaped structure, two support arms 221 are formed, the two support arms 221 are provided with two swing shaft holes 222, the two swing shaft holes 222 are coaxial, two swing shafts 232 are disposed in the swing assembly 23, and the two swing shafts 232 are rotatably mounted in the two swing shaft holes 222 respectively. Two mounting holes 2311 are further formed in two sides of the swinging member 231, the two swinging shafts 232 are respectively provided with the mounting holes 2311, the swinging member 231 is mounted between the two support arms 221, and mounting portions 2321 of the two swinging shafts 232 are respectively mounted in the two mounting holes 2311, so that the two swinging shafts 232 can rotate around the axis of the swinging member 232 and simultaneously drive the swinging member 231 to synchronously rotate. Because the third connecting piece 22 adopts a U-shaped structure, when the swinging piece 231 rotates around the axis of the swinging shaft 232, the rotation of the swinging piece 231 can be limited, so that a swinging mode is formed.

In an embodiment, the cross-sectional shape of the mounting hole 2311 is rectangular, and the portion of the corresponding swing shaft 232 mounted into the mounting hole 2311 is also rectangular in cross-sectional shape to ensure that the swing shaft 232 does not swing synchronously with the swing member 231 when the swing member 231 swings about the swing axis L1.

Of course, in other embodiments, the mounting hole 2311 and the portion of the swing shaft 232 mounted into the mounting hole may also take a shape such as a triangle, a pentagon, etc., and the shape thereof is not limited herein.

As shown in fig. 1 to 4, the swing assembly 23 further includes: a swing locking unit 233, the swing locking unit 233 is used to lock the swing shaft 232 when the second link 21 swings around the swing axis L1 to a preset swing position with respect to the third link 22.

Referring to fig. 5, 6 and 8, the swing lock unit 233 includes: swing locking handle 2331, clasp 2332 and pull rod 2333. The holding hoop 2332 has two holding arms 2334 spaced apart from each other, one end of the pull rod 2333 is rotatably connected with the swing locking handle 2333, the other end of the pull rod 2333 penetrates through one holding arm 2334 and is rotatably connected with the other holding arm 2334, one end of the swing locking handle 2331 connected with the pull rod 2333 abuts against the third connecting piece 22, and the holding hoop 2332 is held on the swing shaft 232. The swing locking handle 2331 rotates in a locking direction about a rotation point to cause the pull rod 2333 to tighten the clasping arm 2334, thereby clasping the hoop 2332 to clasp the swing shaft 232 to lock the swing shaft 232. The swing lock handle 2331 rotates in the unlocking direction about the rotation point to cause the pull rod 2333 to release the holding arm 2334, thereby holding the band 2332 to release the swing shaft 232 to unlock the swing shaft 232.

In this embodiment, after the second connecting member 21 is rotated to a preset swing position about the swing axis L1 relative to the third connecting member 22, the swing unlocking handle 2331 is operated to rotate in the locking direction about the rotation point, so that the pull rod 2333 tightens the clasping arm 2334, thereby enabling the clasping hoop 2332 to clasp the swing shaft 232, and positioning the swing shaft 232.

As shown in fig. 6, a limiting point M of the swing locking handle 2331 is disposed on the third connecting member 22, a distance between a rotating point O of the swing locking handle 2331 and the limiting point M is R1, and a distance between a rotating point O of the swing locking handle 2331 and the third connecting member 22 is R2, wherein R2 is greater than R1, when the swing locking handle 2331 is rotated counterclockwise, the pull rod 2333 is driven, so as to tighten the tightening band 2332 to tighten the swing shaft 232.

In this embodiment, the swing assembly 23 further includes: and a swing damping unit 234, the swing damping unit 234 being provided between the swing member 231 and the third link 22. By the provision of the swing damping unit 234, damping when the swinging member 231 swings around the swing axis L1 can be increased to achieve a more accurate adjustment of the preset swing position after the swinging member 231 swings around the swing axis L1.

In one embodiment, the swing damping unit 234 is preferably an annular damping pad that is sleeved on one of the swing shafts 232 and is clamped between the swing shaft 232 and the arm 221.

Because this connecting device is applied in the environment under water, in order to avoid inside entering water of product and influence result of use, swing subassembly 23 still includes: and a swing seal unit 235, the swing seal unit 235 being disposed between the swing member 231 and the third link 22.

Specifically, the swing seal unit 235 is a seal ring, and first mounting grooves 2312 are further provided at both ends of the swing member 231 in the axial direction of the mounting hole 2311, respectively, and the seal ring is mounted in the first mounting grooves 2312 and clamped between the swing member 231 and the arm 221, thereby sealing a gap between the swing member 231 and the third link 22.

In an embodiment, a sealing ring may be disposed between the swing shaft 232 and the mounting hole 2311 to seal the gap between the swing shaft 232 and the mounting hole 2311.

As shown in fig. 5 and 8, the rotating assembly includes: and a rotation shaft 241, the rotation shaft 241 being rotatably mounted to the swing member 231, the second connection member 21 being fixed to the rotation shaft 241 such that the second connection member 21 rotates about the rotation axis L2 with respect to the swing member 231. Specifically, the swing member 231 is provided with a rotation shaft hole 2313, the second connecting member 21 is provided with a threaded hole, the rotation shaft 241 is provided with a through hole along the inside of the length direction thereof, and the rotation shaft 241 is rotatably mounted in the rotation shaft hole 2313, and the screw 242 penetrates the through hole and is screwed with the threaded hole, so that the second connecting member 21 is fixedly connected with the rotation shaft 241. In the present embodiment, the axis of the rotation shaft 241 coincides with the rotation axis L2, and thus the second link 21 is rotatable about the rotation axis L2 with respect to the swinging member 231. Of course, the rotation is not limited by other stops and can be rotated counterclockwise or clockwise 360 °.

In this embodiment, the rotating assembly 24 further includes: the rotation damping unit 243 is disposed between the second link 21 and the swinging member 231. By providing the rotation damping unit 243, damping of the second connecting member 21 during rotation about the rotation axis L2 can be increased, so as to more precisely adjust the position of the second connecting member 21 after rotation about the rotation axis L2.

In an embodiment, the rotation damping unit 243 is preferably an annular damping pad, which is sleeved on the rotating shaft 241 and is clamped between the second connecting member 21 and the swinging member 231.

Also, since the present connection device is applied in an underwater environment, in order to avoid the influence of the water inflow inside the product on the use effect, the rotating assembly 24 further includes: and a rotary sealing unit 244, the rotary sealing unit 244 being disposed between the second link 21 and the swinging member 231.

Specifically, the rotary sealing unit 244 is a sealing ring, and the second connecting member 21 is provided with a second installation groove 211, and the sealing ring is installed in the second installation groove 211 and clamped between the second connecting member 21 and the swinging member 231, so that a gap between the second connecting member 21 and the swinging member 231 can be sealed.

In an embodiment, a shaft mounting groove 2411 is further provided on the shaft 241, and a shaft sealing ring 2412 is installed in the shaft mounting groove 2411 and clamped between the shaft 241 and the shaft hole 2313, so that a gap between the shaft 241 and the shaft hole 2313 can be sealed.

In this application, the quick-release connection modes between the first quick-release portion 110 and the second quick-release portion 210, and between the fourth quick-release portion 310 and the third quick-release portion 220 are the same, and all adopt the plugging mode to connect, which can be considered that the first quick-release portion 110 is a dovetail groove, the second quick-release portion 210 is a dovetail rail, and the dovetail rail is plugged in the dovetail groove, so as to realize quick-release. The fourth quick-release portion 310 is a dovetail rail, and the third quick-release portion 220 is a dovetail groove, and the dovetail rail is inserted into the dovetail rail to realize quick-release disassembly.

Accordingly, the first quick lock 41 and the second quick lock 42 have the same structure, and the structure of the first quick lock 41 will be described as an example.

Referring to fig. 5 and 7, the first quick lock 41 includes: comprising the following steps: the first handle 411, the first fixed block 412, the first disc spring 413, the first pivot 414, the first connecting shaft 415, the first locking block 416 and the first spring 417, the first fixed block 41 is connected with the first locking block 416 through the first connecting shaft 415, the first handle 411 is movably installed on the first connecting piece 10 through the first pivot 414, the first disc spring 413 is located between the first fixed block 412 and the first locking block 416, the first spring 417 is arranged between the first locking block 416 and the first connecting piece 10, the first connecting piece 10 is further provided with the first accommodating hole 112, and the end part of the first connecting shaft 415 is accommodated in the first accommodating hole 112. The first quick-release part 110 is a dovetail groove, the second quick-release part 210 is a dovetail rail, a first notch 113 is formed in the dovetail groove, a lock hole 212 is formed in the dovetail rail, the dovetail rail is inserted into the dovetail groove, the first notch 113 is prevented from being connected with the first locking block 416, the first locking block 416 is inserted into the lock hole 212 through the first notch 113 to lock the second connecting piece 11, the first handle 411 is rotated, and the first locking block 416 is separated from the lock hole 212 to unlock the second connecting piece 11. The first disc spring 413 is used for providing a locking force for the first locking block 416, and the first spring 417 is used for resetting the first locking block 416.

In summary, according to the connecting device provided by the application, an operator connects the first connecting piece with the first waterproof shell, connects the fourth connecting piece with the second waterproof shell, and then connects the third quick-release part of the middle connecting piece with the fourth quick-release part of the fourth connecting piece quickly, and locks and fixes the third quick-release part and the fourth quick-release part of the fourth connecting piece quickly through the second quick-lock piece; finally, the first waterproof shell is supported by both hands and is connected with the second quick-release part in a quick-release manner through the first quick-release part, and the other hand can operate the first quick-lock piece to lock the connection between the first quick-release part and the second quick-release part, so that the first waterproof shell and the second waterproof shell are quickly connected. Compared with the prior art, the device adopts the mode of clamping the ball head by the clamp, can effectively improve the assembly efficiency and simplify the operation of operators.

The foregoing description of the invention has been presented for purposes of illustration and description, and is not intended to be limiting. Several simple deductions, modifications or substitutions may also be made by a person skilled in the art to which the invention pertains, based on the idea of the invention.

Claims (10)

1. A connection device, comprising:

the first connecting piece is used for connecting the first waterproof shell and is provided with a first quick-dismantling part;

the middle connecting piece is provided with a second quick-dismantling part and a third quick-dismantling part, and the second quick-dismantling part can be connected with the first quick-dismantling part in a quick-dismantling way;

the fourth connecting piece is used for connecting the second waterproof shell and is provided with a fourth quick-dismantling part which can be connected with the third quick-dismantling part in a quick-dismantling way;

a quick lock comprising: the first quick locking piece is arranged on the first connecting piece and/or the second connecting piece, and is used for locking or unlocking the connection between the first quick-dismantling part and the second quick-dismantling part; the second quick locking piece is arranged on the third connecting piece and/or the fourth connecting piece, and is used for locking or unlocking the connection between the fourth quick-dismantling part and the third quick-dismantling part.

2. The connection device of claim 1, wherein the intermediate connection comprises: the second connecting piece, third connecting piece and swing subassembly, the second connecting piece with third connecting piece interconnect, second quick detach portion is located the second connecting piece, third quick detach portion is located the third connecting piece, swing subassembly is used for making the second connecting piece for the third connecting piece is around the swing axis swing.

3. The connection device of claim 2, wherein the intermediate connection further comprises: and the rotating assembly is arranged on the swinging assembly, the second connecting piece is arranged on the rotating assembly, the rotating assembly is used for enabling the second connecting piece to rotate around a rotating axis relative to the swinging assembly, and the rotating axis is intersected with the swinging axis.

4. A connection device as claimed in claim 3, wherein the swinging assembly comprises: the swinging piece is arranged on the third connecting piece in a swinging way through the swinging shaft, and the second connecting piece is connected with the swinging piece or the swinging shaft so as to drive the second connecting piece to swing around a swinging axis relative to the third connecting piece; the rotating assembly is arranged on the swinging piece or the swinging shaft, the rotating assembly can enable the second connecting piece to rotate around the rotating shaft relative to the swinging piece, and the axial lead of the swinging shaft coincides with the swinging shaft.

5. The connection device of claim 4, wherein the swing assembly further comprises: the swing locking unit is arranged on the second connecting piece or the third connecting piece and used for locking the swing shaft when the second connecting piece swings around the swing axis to a preset swing position relative to the third connecting piece.

6. The connection device of claim 4, wherein the swing assembly further comprises: and the swing damping unit is arranged between the swinging piece and the third connecting piece.

7. The connection device of claim 6, wherein the swing assembly further comprises: and the swinging sealing unit is arranged between the swinging piece and the third connecting piece.

8. The connection device of claim 4, wherein the rotating assembly comprises: the rotating shaft is rotatably arranged on the swinging piece, the second connecting piece is fixed on the rotating shaft, so that the second connecting piece rotates around the rotating axis relative to the swinging piece, and the axial lead of the rotating shaft coincides with the rotating axis.

9. The connection device of claim 8, wherein the rotating assembly further comprises: and the rotation damping unit is arranged between the second connecting piece and the swinging piece.

10. The connection device of claim 9, wherein the rotating assembly further comprises: and the rotary sealing unit is arranged between the second connecting piece and the swinging piece.

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