Underwater equipment wire connecting joint and underwater photographic equipment

Abstract

The utility model discloses an underwater equipment wire connecting joint and underwater photographic equipment, and relates to the field of underwater photography, the underwater equipment wire connecting joint comprises a first connecting assembly and a second connecting assembly, and the first connecting assembly comprises a shell with a first end and a second end; the first positioning sleeve is rotationally mounted at the second end of the shell; the first needle seat is fixedly mounted in the first positioning sleeve, and a first gap is formed between the first needle seat and the first positioning sleeve; the second connecting assembly comprises a connecting elbow with a first end and a second end; the second needle seat is mounted at the second end of the connecting elbow and can be connected with the first needle seat in an inserting manner; the second positioning sleeve is mounted at the second end of the connecting elbow, sleeves the second needle seat and can be fixed with the first positioning sleeve in a sleeving manner; and the connecting ring is hermetically mounted at the second end of the connecting elbow and forms a second gap with the second positioning sleeve. The underwater equipment wire connecting joint can flexibly adjust the wire outlet direction of the wire, and solves the problem that the joint is easy to interfere with other external equipment of the underwater equipment.

Description

Technical Field

[0001] The present application relates to the field of underwater photography, and in particular to an underwater equipment wire connection joint and underwater equipment. Background Art

[0002] When shooting underwater video or filming movies, it is often necessary to transmit underwater video signals or control signals of underwater equipment such as cameras and lenses to the ground through cables for remote control, or to directly power underwater camera equipment from the ground to ensure that the camera device can be powered on for a long time and keep working. Depending on the depth of the water, the commonly used length of the cable ranges from 45 meters to 100 meters.

[0003] At present, there are two main ways to connect the cables of underwater equipment. One is to pre-install the waterproof connector on the outside of the cable and weld the plugs of the required specifications on both ends of the cable. When using, first pass the plug at one end of the cable through the accessory installation hole of the waterproof shell of the underwater equipment, and then lock the waterproof connector on the outside of the camera waterproof shell to complete the connection. The disadvantage of this method is that the installation and removal of the cable requires tools such as open-end wrenches or hexagonal wrenches, which is difficult to install and remove quickly outdoors.

[0004] Another way is to use a two-section waterproof connector. One section of the waterproof connector is installed on the waterproof housing of the underwater equipment and is electrically connected to the underwater equipment; the other section is electrically connected to the end of the wire. The two sections of the waterproof connector can be connected by plugging. When using, just plug the two sections of the waterproof connector together and fix the two sections to prevent them from loosening. This solution realizes the rapid loading and unloading of wires. However, since both sections of the waterproof connector are linear structures, they protrude too much from the waterproof housing after connection, which has the disadvantage of easily interfering with other external devices. Utility Model Content

[0005] The present application provides an underwater equipment wire connection connector and underwater photography equipment to improve the problem that the currently commonly used waterproof connectors easily interfere with other external devices of the underwater equipment.

[0006] According to a first aspect of the present application, the present application provides an underwater equipment wire connection joint, comprising: a first connection component and a second connection component,

[0007] The first connection component comprises:

[0008] A housing, the housing having a first end and a second end, the first end of the housing being used for sealing and mounting on underwater equipment;

[0009] A first positioning sleeve, the first positioning sleeve is sealingly mounted on the second end of the housing and is rotatably connected to the second end of the housing;

[0010] a first needle seat, the first needle seat being fixedly installed in the first positioning sleeve and being used for being electrically connected to the underwater equipment, a first gap being formed between an end of the first positioning sleeve away from the second end of the housing and the first needle seat;

[0011] The second connection component comprises:

[0012] A connecting elbow, the connecting elbow having a first end and a second end, the first end of the connecting elbow being used for allowing the wire to be sealed and inserted into the inner cavity of the connecting elbow;

[0013] A second needle seat, which is installed at the second end of the connecting elbow and is used to electrically connect with the wire inserted into the inner cavity of the connecting elbow, and the second needle seat can be plugged and connected with the first needle seat;

[0014] A second positioning sleeve, which is installed at the second end of the connecting elbow and sleeved outside the second needle seat, and the second positioning sleeve can be inserted into the first gap and sleeved and fixed with the first positioning sleeve to transmit torque to the first positioning sleeve;

[0015] A connecting ring is sealably mounted on the second end of the connecting elbow, and a second gap is formed between the second positioning sleeve and the connecting ring for the first positioning sleeve to seal and insert, so that the first connecting component and the second connecting component are sealably plugged and fixed.

[0016] In one embodiment, a first positioning key is arranged on the outer side wall of the second positioning sleeve, and a first key slot for inserting the first positioning key is arranged on the inner side wall of the first positioning sleeve; and / or,

[0017] A second positioning key is arranged on the inner side wall of the first positioning sleeve, and a second key slot for inserting the second positioning key is arranged on the outer side wall of the second positioning sleeve.

[0018] In one embodiment, an annular groove is formed on the outer side wall of the first positioning sleeve, and a limiting member is detachably connected to the side wall of the shell, and one end of the limiting member penetrates into the inner cavity of the shell and is inserted into the annular groove.

[0019] In one embodiment, the connecting ring is detachably fixedly mounted on the second end of the connecting elbow, the second positioning sleeve and the second needle seat are both inserted and mounted on the second end of the connecting elbow, a positioning sleeve boss is provided on the outer wall of the second positioning sleeve, and a ring plate for pressing the positioning sleeve boss is provided on the inner wall of the connecting ring, and the connecting ring clamps and positions the second positioning sleeve and the second needle seat by pressing the positioning sleeve boss against the ring plate.

[0020] In one embodiment, a needle seat boss is provided on one side of the second needle seat, a slot is provided on the end wall of the second end of the connecting elbow corresponding to the needle seat boss, and the needle seat boss is embedded in the slot.

[0021] In one embodiment, a sealing sleeve is installed at the first end of the shell, and the inner cavity of the sealing sleeve serves as a passage for wires connecting underwater equipment to pass into the inner cavity of the shell, and the inner cavity of the sealing sleeve can be filled with sealing material that separates the sealing sleeve.

[0022] In one embodiment, a locking nut is rotatably sleeved on the connecting ring, and a locking external thread cooperating with the locking nut is provided on the outer wall of the second end of the shell.

[0023] In one embodiment, the first needle seat comprises a first seat body and a first current needle mounted on the first seat body, the second needle seat comprises a second seat body and a second current needle mounted on the second seat body, the first current needle and the second current needle are arranged correspondingly, and one of the first current needle and the second current needle is a sub-current needle in a sub-mother-child current needle group, and the other is a mother current needle in the sub-mother-child current needle group, and when the first needle seat and the second needle seat are in a plug-in mating state, the first current needle and the second current needle are in contact and conduction; and / or,

[0024] The first end of the connecting elbow is equipped with a threading terminal, and the threading terminal includes:

[0025] A locking cover, the locking cover being threadedly connected to the first end of the connecting elbow;

[0026] A sealing rubber plug, which is installed in the inner cavity of the locking cover, and when the locking cover is locked in a state where the elbow end is connected, the sealing rubber plug is in a pressurized state;

[0027] A wire tail protective sleeve, wherein the wire tail protective sleeve is threadedly connected to an end of the locking cover away from the connecting elbow;

[0028] The locking cover, the sealing rubber plug and the wire tail protective cover are all provided with threading holes.

[0029] In one embodiment, a first sealing ring is provided on the outer side wall of one end of the first positioning sleeve for the connecting ring sleeve;

[0030] And / or, a second sealing ring is provided on the outer wall of the second end of the connecting elbow;

[0031] And / or, a third sealing ring is provided on the first end surface of the housing;

[0032] And / or, a fourth sealing ring is provided on the outer side wall of one end of the first positioning sleeve connected to the housing.

[0033] According to a second aspect of the present application, there is provided an underwater photographic equipment, comprising: a photographic equipment body, on which is mounted an underwater equipment wire connection joint, wherein the underwater equipment wire connection joint is the above-mentioned underwater equipment wire connection joint.

[0034] The underwater equipment wire connecting joint according to the above embodiment includes a first connecting component and a second connecting component; wherein, the first connecting component includes a shell, a first positioning sleeve and a first needle seat, and the second connecting component includes a connecting elbow, a second needle seat, a second positioning sleeve and a connecting ring; the setting of the connecting elbow shortens the straight length of the connecting joint protruding from the waterproof shell, and by rotating the first positioning sleeve to connect it to the shell, and allowing the second positioning sleeve and the first positioning sleeve to be able to be sleeved and fixed, the first connecting component and the second connecting component are in a connected state, and the second connecting component can be rotated to flexibly adjust the wire outlet direction, which not only improves the problem that the joint is prone to interfere with other external devices of the underwater equipment, but also facilitates underwater operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a structural schematic diagram of a waterproof joint;

[0036] Figure 2 is a schematic diagram of the overall structure of a first connecting component and a second connecting component in an embodiment;

[0037] Figure 3 is a schematic cross-sectional structural diagram of a first connecting component in an embodiment;

[0038] Figure 4 is a schematic cross-sectional structural diagram of a second connecting component in an embodiment;

[0039] Figure 5 is a schematic cross-sectional structural diagram of a connection state of a first connection component and a second connection component in an embodiment;

[0040] Figure 6 is a schematic diagram of the overall structure of a first connecting component in an embodiment;

[0041] Figure 7 Schematic diagram of the overall structure of the second connecting component in an embodiment.

[0042] In the figure, 100, first connecting assembly; 110, housing; 111, stopper; 112, third sealing ring; 113, extension sleeve section; 114, locking external thread; 120, first positioning sleeve; 121, first sealing ring; 122, annular groove; 123, fourth sealing ring; 124, first keyway; 125, auxiliary keyway; 130, first needle seat; 131, first seat body; 132, first current needle; 140, first gap; 150, sealing sleeve; 151, anti-drop boss; 160, first protective cover;

[0043] 200, second connecting assembly; 210, connecting elbow; 211, card slot; 220, second needle seat; 221, second seat body; 2211, step surface; 2212, needle seat boss; 222, second current needle; 230, connecting ring; 231, ring plate; 232, second sealing ring; 240, second positioning sleeve; 241, positioning sleeve boss; 242, first positioning key; 243, auxiliary positioning key; 250, second gap; 260, threading end; 261, locking cover; 262, sealing rubber plug; 263, wire tail protection sleeve; 264, threading hole; 270, locking nut; 280, second protection cover; 281, fifth sealing ring;

[0044] 300, waterproof connector; 301, waterproof connector section A; 302, waterproof connector section B. DETAILED DESCRIPTION

[0045] The present application is further described in detail below by specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments adopt associated similar element numbers. In the following embodiments, many detailed descriptions are intended to enable the present application to be better understood. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, and methods. In some cases, some operations related to the present application are not shown or described in the specification, in order to avoid the core part of the present application being overwhelmed by too much description, and for those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0046] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various implementations, and the operation steps involved in each embodiment can also be replaced or adjusted in a sequence in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for the purpose of clearly describing a certain embodiment and do not mean that the composition and / or sequence are necessary.

[0047] The serial numbers of the components in this document, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).

[0048] When using underwater equipment for underwater video or filming, it is necessary to use wires to power the underwater equipment or transmit video signals, control signals, etc. At present, one of the commonly used wire connection methods for underwater equipment is to use Figure 1The waterproof connector 300 shown in the figure includes two sections, A and B. The waterproof connector section A 301 is usually fixedly installed outside the waterproof housing of the underwater equipment, and a current needle is preset inside the waterproof connector section B 302, which is used to conduct with the wire that can be connected to the external or shore equipment, and the current needle and the current needle preset inside the waterproof connector section A 301 form a parent-child current needle. The waterproof connector section B 302 is preset outside to protect the waterproof structure and wire tail of the wire and a hand nut for connecting the waterproof connector section A 301. When in use, just insert the waterproof connector section B 302 into the waterproof connector section A 301, and the two current needles are in contact to connect the circuit, and then tighten the hand nut to fix the waterproof connector section B 302 to the waterproof connector section A 301 to prevent loosening. When disassembling, the above steps are reversed, and the wire can be wound and retracted after the waterproof connector section B 302 is pulled out. This solution achieves quick installation and removal of communication cables. However, since the waterproof connector section B 302 is a straight-out design as shown in the figure, the structural components protrude too much from the waterproof housing, which is easy to interfere with other external devices such as fill light, radio, etc. or block part of the underwater photographer's line of sight, which has certain disadvantages.

[0049] The underwater equipment wire connection joint provided in the present application shortens the straight length of the connection joint protruding from the waterproof shell by setting a connection elbow 210, and is rotatably connected to the shell 110 through the first positioning sleeve 120, and the second positioning sleeve 240 and the first positioning sleeve 120 can be fixedly mounted in a matching arrangement, so that when the first connection component 100 and the second connection component 200 are in a connected state, the second connection component 200 can be rotated as needed to flexibly adjust the outlet direction of the wire, which effectively improves the problem that the connection joint is prone to interfere with other external devices of the underwater equipment, and also allows underwater photographers to have a wider field of vision and freer operation.

[0050] Please refer to Figure 2-Figure 7 An embodiment of the present application provides an underwater equipment wire connection joint, including a first connection component 100 and a second connection component 200. The first connection component 100 is used to be connected to a waterproof shell of the underwater equipment and connected to the underwater equipment. The second connection component 200 is used to be installed at the end of a wire that can be connected to external or onshore equipment and connected to the wire. The first connection component 100 and the second connection component 200 can be quickly connected.

[0051] In one embodiment, referring to Figure 2 and Figure 3The first connection assembly 100 includes a housing 110, a first positioning sleeve 120 and a first needle seat 130; wherein the housing 110 has a hollow inner cavity and a first end and a second end connected to the hollow inner cavity, the first end of the housing 110 is provided with a sealing installation structure for sealingly installing on the underwater equipment, the first positioning sleeve 120 is sealed and installed at the second end of the housing 110, and is rotatably connected to the second end of the housing 110, and the first needle seat 130 is fixedly installed in the first positioning sleeve 120. The end of the first positioning sleeve 120 away from the second end of the housing 110 is used as a connecting end, and a first gap 140 for connecting the second connection assembly 200 is formed between the connecting end of the first positioning sleeve 120 and the first needle seat 130. The first needle seat 130 and the underwater equipment can be connected and communicated through a wire passing through the first end of the housing 110. The wire connecting the first needle seat 130 and the underwater equipment can be the wire of the underwater equipment itself, or it can be a special wire dedicated to connecting the first needle seat 130 and the underwater equipment. In some embodiments, the first connection assembly 100 includes the special wire.

[0052] Reference Figure 2 , Figure 4 and Figure 5 The second connection assembly 200 includes a connection elbow 210, a second needle seat 220, a second positioning sleeve 240 and a connection ring 230; wherein the connection elbow 210 also has a hollow inner cavity and a first end and a second end connected to the hollow inner cavity, and the first end of the connection elbow 210 is provided with a sealing threading structure so that the end of the wire connected to the external or onshore equipment can be sealed and penetrated into the hollow inner cavity of the connection elbow 210; the second needle seat 220 is installed at the second end of the connection elbow 210, and the second needle seat 220 can be connected with the wire penetrating the hollow inner cavity of the connection elbow 210. It is connected and can also be plugged and connected with the first needle seat 130; the second positioning sleeve 240 is installed at the second end of the connecting elbow 210, and is sleeved on the outside of the second needle seat 220, and the second positioning sleeve 240 can be inserted into the first gap 140, and is sleeved and fixed with the first positioning sleeve 120 to transmit torque to the first positioning sleeve 120, driving the first positioning sleeve 120 to rotate; the connecting ring 230 is sealingly installed at the second end of the connecting elbow 210, and a second gap 250 is formed between the connecting ring 230 and the second positioning sleeve 240 for the first positioning sleeve 120 to be sealingly inserted.

[0053] In this way, as the second positioning sleeve 240 is inserted into the first gap 140 and fixed with the first positioning sleeve 120, and the first positioning sleeve 120 is sealed and inserted into the second gap 250, the first needle seat 130 and the second needle seat 220 can also be plugged and connected to achieve the sealed plug-in fixation of the first connection component 100 and the second connection component 200. And the first positioning sleeve 120 is rotatably installed at the second end of the housing 110, so that the first needle seat 130 is also rotatably set in the housing 110 and can rotate synchronously with the second needle seat 220, so that even if the first connection component 100 and the second connection component 200 are in a connected state, the second connection component 200 can be directly rotated to adjust the outlet direction without plugging and unplugging, which is convenient and flexible to use, so as to avoid interference between the connection joint or wire and other external devices of the underwater equipment. The effect of being able to quickly connect and seal before use and quickly separate after use is achieved.

[0054] In one embodiment, for the rotational connection between the first positioning sleeve 120 and the second end of the housing 110, refer to Figure 3 and Figure 5 , the first positioning sleeve 120 is inserted into the second end of the housing 110, and an annular groove 122 is provided on the outer wall of the first positioning sleeve 120. The side wall of the second end of the housing 110 is detachably connected with a limiting member 111, and one end of the limiting member 111 penetrates into the inner cavity of the housing 110 and is inserted into the annular groove 122. Exemplarily, a threaded hole opposite to the annular groove 122 is provided on the side wall of the second end of the housing 110, and the limiting member 111 adopts a bolt threadedly connected to the threaded hole, and the rod of the bolt penetrates into the inner cavity of the housing 110 and is inserted into the annular groove 122. The head of the bolt serves as an adjustment end, and the countersunk head is arranged on the outer side of the housing 110 for easy adjustment. Moreover, the use of bolt limiting is also convenient for disassembly, which is convenient for the use and installation of the first connecting assembly 100. In addition, the threaded holes and bolts can also be arranged in two, three or more groups around the circumferential array of the housing 110, so that the first positioning sleeve 120 can keep the force as uniform as possible during use, and extend the service life. In other embodiments, the limiting member 111 may also be a pin, a rod, a limiting block or other components that can meet the design or use requirements.

[0055] In one embodiment, referring to Figure 3 A fourth sealing ring 123 is provided on the outer side wall of the end where the first positioning sleeve 120 is connected to the housing 110. In other embodiments, the fourth sealing ring 123 may also be provided on the inner wall of the portion of the housing 110 connected to the first positioning sleeve 120, and a mechanical seal or other sealing form may also be used, as long as it can meet the sealing requirements.

[0056] In one embodiment, referring to Figure 6 and Figure 7, a first positioning key 242 is provided on the outer side wall of the second positioning sleeve 240, and a first key slot 124 for inserting the first positioning key 242 is provided on the inner side wall of the first positioning sleeve 120. The provision of the first positioning key 242 and the first key slot 124 facilitates accurate positioning of the first positioning sleeve 120 and the second positioning sleeve 240 when plugged in, thereby enabling the first needle seat 130 and the second needle seat 220 to be accurately docked, and also forms a torque transmission structure between the first positioning sleeve 120 and the second positioning sleeve 240, so that the second connection assembly 200 can drive the first positioning sleeve 120 and the first needle seat 130 to rotate through the second positioning sleeve 240 as needed to adjust the outlet direction.

[0057] In order to better transmit torque while accurately plugging and fitting the second positioning sleeve 240 and the first positioning sleeve 120, in some further embodiments, an auxiliary positioning key 243 is provided on the outer wall of the second positioning sleeve 240, and an auxiliary key groove 125 for inserting the auxiliary positioning key 243 is provided on the inner wall of the first positioning sleeve 120.

[0058] For example, refer to Figure 6 and Figure 7 A first positioning key 242 and two auxiliary positioning keys 243 are provided on the outer side wall of the second positioning sleeve 240. The auxiliary positioning keys 243 and the first positioning key 242 are arranged circumferentially at intervals along the outer side wall of the second positioning sleeve 240. The width of the first positioning key 242 is greater than the width of the auxiliary positioning key 243. A first key groove 124 and two auxiliary key grooves 125 are correspondingly provided on the inner side wall of the first positioning sleeve 120. The width of the first key groove 124 matches the width of the first positioning key 242, and the width of the auxiliary key groove 125 matches the width of the auxiliary positioning key 243. This makes the first positioning sleeve 120 and the second positioning sleeve 240 have a unique sleeve matching form, thereby ensuring that the first needle seat 130 and the second needle seat 220 can be accurately plugged and matched with the sleeves of the first positioning sleeve 120 and the second positioning sleeve 240.

[0059] In other examples, the first positioning key 242 and the auxiliary positioning key 243 of the same width may be used, and this effect may be achieved by setting the first positioning key 242 and the auxiliary positioning key 243 along the circumferential gap of the outer wall of the second positioning sleeve 240. For example, the distance between the first positioning key 242 and the two auxiliary positioning keys 243 is larger than the distance between the two auxiliary positioning keys 243, so that the second positioning sleeve 240 and the first positioning sleeve 120 can be accurately plugged in. In short, whether the auxiliary positioning keys 243 and the auxiliary key slots 125 of different widths, quantities or positions are set, any setting form that can meet the design and use requirements is acceptable.

[0060] Of course, in other embodiments, a second positioning key may be provided on the inner side wall of the first positioning sleeve 120, and a second key slot for inserting the second positioning key may be provided on the outer side wall of the second positioning sleeve 240. Auxiliary positioning keys 243 and auxiliary key slots 125 for inserting the auxiliary positioning keys 243 may be selectively provided on the first positioning sleeve 120 and the second positioning sleeve 240 as required. In addition, the first positioning sleeve 120 and the second positioning sleeve 240 may be made of stainless steel, titanium alloy or other materials with wear-resistant and corrosion-resistant properties to improve wear-resistant and corrosion-resistant properties.

[0061] In one embodiment, referring to Figure 3-Figure 5 The first needle seat 130 includes a first seat body 131 fixedly installed in the first positioning sleeve 120 and a first current needle 132 fixedly installed on the first seat body 131. The second needle seat 220 includes a second seat body 221 installed in the second end of the connecting elbow 210 and a second current needle 222 fixedly installed on the second seat body 221. The first current needle 132 and the second current needle 222 are used to contact and communicate with the corresponding wire. Specifically, the first current needle 132 and the second current needle 222 are correspondingly arranged, and one of the first current needle 132 and the second current needle 222 is a sub-current needle in the sub-mother current needle group, and the other is a mother current needle in the sub-mother current needle group. The plug-in matching state of the first needle seat 130 and the second needle seat 220 is the plug-in conductive state of the first current needle 132 and the second current needle 222. Exemplarily, the first current needle 132 is a mother current needle, the second current needle 222 is a sub-current needle, and the first current needle 132 and the second current needle 222 are correspondingly provided in six groups, and the second current needle 222 can be inserted into the first current needle 132 one by one. In other examples, the first current needle 132 can also be a sub-current needle, and the second current needle 222 can be a mother current needle. In addition, the number of the first current needle 132 and the second current needle 222 can also be adjusted as needed, such as reducing to one group, two groups or three groups, or increasing to seven groups, eight groups or nine groups.

[0062] In one embodiment, the second needle holder 220 is configured to be detachably mounted on the second end of the connecting elbow 210. When connecting the wire, the second needle holder 220 is first removed, and then the second current needle 222 is connected to the wire by welding or crimping. After the connection is completed, it is reinstalled on the second end of the connecting elbow 210. This can effectively avoid the connection between the second current needle 222 and the wire in the narrow space inside the connecting elbow 210, facilitating operation.

[0063] For example, refer to Figure 4 and Figure 5The second needle seat 220 and the second positioning sleeve 240 are inserted into the second end of the connecting elbow 210, and the connecting ring 230 is threadedly connected to the second end of the connecting elbow 210. The connecting ring 230 limits the second positioning sleeve 240 and thus limits the second needle seat 220. Specifically, a step surface 2211 is provided on the side of the second seat body 221 away from the connecting elbow 210, and the part of the second positioning sleeve 240 inserted into the second end of the connecting elbow 210 is sleeved outside the step surface 2211 of the second seat body 221. A positioning sleeve boss 241 is integrally provided on the outer wall of the second positioning sleeve 240, and a ring plate 231 for pressing the positioning sleeve boss 241 is integrally provided on the inner wall of the connecting ring 230. The connecting ring 230 limits the second positioning sleeve 240 by pressing the positioning sleeve boss 241 with the ring plate 231, thereby limiting the second seat body 221.

[0064] Furthermore, in order to strengthen the connection between the second needle seat 220 and the connecting elbow 210 and reduce the possibility of relative rotation between the second needle seat 220 and the connecting elbow 210 during use, illustratively, referring to Figure 4 A needle seat boss 2212 is integrally provided on one side of the second seat body 221, and a slot 211 is provided on the end wall of the second end of the connecting elbow 210 corresponding to the needle seat boss 2212, and the needle seat boss 2212 is embedded in the slot 211. Of course, in other examples, the slot 211 can also be provided on the second seat body 221, and the boss can be provided on the end wall of the second end of the connecting elbow 210, and other anti-rotation structures can also be used. In one embodiment, referring to Figure 3 The first connection assembly 100 further includes a sealing sleeve 150, one end of which is inserted into the inner cavity of the housing 110, and the other end of which passes through the first end of the housing 110 and extends into the inner cavity of the housing 110. An anti-drop boss 151 is provided at one end of the sealing sleeve 150 in the inner cavity of the housing 110 to prevent the sealing sleeve 150 from falling out of the inner cavity of the housing 110. The inner cavity of the sealing sleeve 150 is used as a passage for the wire connecting the underwater equipment to penetrate into the inner cavity of the housing 110, and the inner cavity of the sealing sleeve 150 can be filled with a sealing material that separates the sealing sleeve 150.

[0065] For example, when installing the first connection component 100, first remove the first needle seat 130, and pass one end of the wire used to connect the underwater equipment through the sealing sleeve 150, weld it on the first current needle 132, then reinstall the first needle seat 130, and fill the sealing sleeve 150 with AB glue. After the AB glue is cured, the first positioning sleeve 120, the first needle seat 130 and the sealing sleeve 150 can be connected into a whole, and the first end of the shell 110 is sealed to prevent water or air from penetrating into the waterproof shell of the underwater equipment from the assembly gap of the first current needle 132 or the first seat body 131 and the inside of the wire, so as to avoid the misjudgment or failure of the pressure sensor and the alarm device caused by the change of air pressure inside the waterproof shell of the underwater equipment. Similarly, when installing the second connection component 200, the connection elbow 210 can also be filled with sealing materials such as AB glue.

[0066] In one embodiment, for the sealing installation structure at the first end of the housing 110, refer to Figure 3 A ring groove is provided on the first end face of the shell 110, and a third sealing ring 112 is embedded in the ring groove. An extended sleeve section 113 is also extended on the first end face of the shell 110. The extended sleeve section 113 is located in the area surrounded by the third sealing ring 112, and the extended sleeve section 113 is provided with an external thread that matches the internal thread on the waterproof shell of the underwater equipment. The shell 110 can be screwed and installed on the waterproof shell of the underwater equipment through the extended sleeve section 113, and when the shell 110 is tightened and fixed on the waterproof shell of the underwater equipment, the third sealing ring 112 is clamped between the first end face of the shell 110 and the outer surface of the waterproof shell, so as to seal the connection between the first end of the shell 110 and the waterproof shell of the underwater equipment.

[0067] In one embodiment, for the sealing threading structure of the first end of the connecting elbow 210, refer to Figure 4The sealed threading structure can be a threading terminal 260, which includes a locking cover 261, a sealing plug 262 and a wire end protection sleeve 263, all of which are provided with a threading hole 264. The locking cover 261 is threadedly installed at the first end of the connecting elbow 210, and the wire end protection sleeve 263 is threadedly connected to the end of the locking cover 261 away from the connecting elbow 210. The sealing plug 262 is installed in the inner cavity of the locking cover 261. The wire can pass through the threading hole 264 of the wire end protection sleeve 263, the locking cover 261 and the sealing plug 262 in sequence and penetrate into the inner cavity of the connecting elbow 210. When the locking cover 261 is screwed and locked at the end of the connecting elbow 210, the sealing rubber plug 262 is squeezed by the locking cover 261 and the connecting elbow 210 along the axial direction of the sealing rubber plug 262 and is in a compressed state. The axially compressed and restricted sealing rubber plug 262 tends to deform in the radial direction, closer to the wire, and forms a seal. In addition, in this example, since the deformation of the sealing rubber plug 262 in the radial direction is limited by the locking cover 261, the deformation is mainly concentrated in the radial direction, which is more convenient to meet the sealing requirements.

[0068] In other embodiments, the sealing threading structure may also adopt other suitable structural forms, such as installing a sealing ring in the inner cavity of the first end of the connecting elbow 210, to meet different design or application requirements.

[0069] In one embodiment, for the sealing method between the connecting ring 230 and the connecting elbow 210, refer to Figure 4 A second sealing ring 232 is installed on the outer wall of the second end of the connecting elbow 210. After the connecting ring 230 is installed on the connecting elbow 210, the second sealing ring 232 seals the gap between the second end of the connecting elbow 210 and the connecting ring 230, so that the connecting ring 230 and the connecting elbow 210 are detachably sealed. In other embodiments, mechanical seals, interference fit seals, and other sealing forms may also be used, as long as they can meet the sealing requirements.

[0070] In one embodiment, for the sealing plugging method of the first positioning sleeve 120, for example, refer to Figure 3 and Figure 5 A first sealing ring 121 is provided on the outer wall of the connecting end of the first positioning sleeve 120. When the first positioning sleeve 120 is inserted into the second gap 250, the first sealing ring 121 seals the gap between the connecting ring 230 and the first positioning sleeve 120, so that the first positioning sleeve 120 is sealedly inserted into the second gap 250.

[0071] In one embodiment, referring to Figure 3-Figure 5A locking nut 270 is rotatably sleeved on the connecting ring 230, and a locking external thread 114 cooperating with the locking nut 270 is provided on the outer wall of the shell 110. The locking nut 270 and the locking external thread 114 cooperate with each other to further lock and fix the first connecting component 100 and the second connecting component 200 after being plugged in and fixed, thereby achieving an anti-slip effect.

[0072] In one embodiment, referring to Figure 6 and Figure 7 In order to protect the first needle seat 130 and the second needle seat 220 in the unconnected state, the first connection component 100 further includes a first protective cover 160 for protecting the first current needle 132, and the second connection component 200 further includes a second protective cover 280 for protecting the second current needle 222. The first protective cover 160 and the second protective cover 280 are installed on the corresponding first connection component 100 and the second connection component 200 by a detachable installation method such as threaded connection, plug-in or snap-on connection. Of course, in other embodiments, only the first protective cover 160 or the second protective cover 280 may be provided as required.

[0073] For example, refer to Figure 3 and Figure 4 The first protective cover 160 and the second protective cover 280 are both detachably installed by threaded installation. Specifically, the first protective cover 160 is provided with an internal thread, which can cooperate with the locking external thread 114 provided on the outer wall of the housing 110, and is threadedly installed on the housing 110. The first protective cover 160 can play a waterproof and dustproof role with the cooperation of the first sealing ring 121. The second protective cover 280 is provided with an external thread, which can cooperate with the internal thread of the locking nut 270 sleeved on the connecting ring 230, and is threadedly installed on the locking nut 270. A fifth sealing ring 281 is provided in the second protective cover 280, so that the second protective cover 280 can have waterproof, anti-fouling and anti-corrosion effects.

[0074] In some embodiments of underwater photographic equipment, the underwater photographic equipment includes a photographic equipment body and an underwater equipment wire connection joint installed on the photographic equipment body, and the underwater equipment wire connection joint is the underwater equipment wire connection joint in any of the above embodiments.

[0075] It should be noted that the photographic equipment body referred to in the embodiments of the present application may be a photographic terminal provided with a waterproof housing, or may be only a photographic terminal. The so-called photographic terminal may be a shooting terminal such as a video camera or a camera, or may be a video camera or a camera equipped with additional mechanisms such as a lens, a flash, a tripod, a filter, or a storage device, or other photographic equipment that can be understood by those skilled in the art.

[0076] The above specific examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. For those skilled in the art of the present invention, some simple deductions, deformations or substitutions can be made based on the idea of ​​the present invention.

Claims

1. An underwater equipment wire connection joint, characterized in that: comprising a first connection component and a second connection component, The first connection component comprises: A housing, the housing having a first end and a second end, the first end of the housing being used for sealing and mounting on underwater equipment; A first positioning sleeve, the first positioning sleeve is sealingly mounted on the second end of the housing and is rotatably connected to the second end of the housing; a first needle seat, the first needle seat being fixedly installed in the first positioning sleeve and being used for being electrically connected to the underwater equipment, a first gap being formed between an end of the first positioning sleeve away from the second end of the housing and the first needle seat; The second connection component comprises: A connecting elbow, the connecting elbow having a first end and a second end, the first end of the connecting elbow being used for allowing the wire to be sealed and inserted into the inner cavity of the connecting elbow; A second needle seat, which is installed at the second end of the connecting elbow and is used to electrically connect with the wire inserted into the inner cavity of the connecting elbow, and the second needle seat can be plugged and connected with the first needle seat; A second positioning sleeve, which is installed at the second end of the connecting elbow and sleeved outside the second needle seat, and the second positioning sleeve can be inserted into the first gap and sleeved and fixed with the first positioning sleeve to transmit torque to the first positioning sleeve; A connecting ring is sealably mounted on the second end of the connecting elbow, and a second gap is formed between the connecting ring and the second positioning sleeve for the first positioning sleeve to seal and insert, so that the first connecting component and the second connecting component are sealably plugged and fixed.

2. The underwater equipment wire connection joint according to claim 1, characterized in that: A first positioning key is arranged on the outer side wall of the second positioning sleeve, and a first key slot for inserting the first positioning key is arranged on the inner side wall of the first positioning sleeve; and / or, A second positioning key is arranged on the inner side wall of the first positioning sleeve, and a second key slot for inserting the second positioning key is arranged on the outer side wall of the second positioning sleeve.

3. The underwater equipment wire connection joint according to claim 1, characterized in that: An annular groove is provided on the outer side wall of the first positioning sleeve, and a limiting member is detachably connected to the side wall of the shell. One end of the limiting member penetrates into the inner cavity of the shell and is inserted into the annular groove.

4. The underwater equipment wire connection joint according to claim 1, characterized in that: The connecting ring is detachably fixedly mounted on the second end of the connecting elbow, the second positioning sleeve and the second needle seat are both inserted and mounted on the second end of the connecting elbow, a positioning sleeve boss is arranged on the outer wall of the second positioning sleeve, and a ring plate for pressing the positioning sleeve boss is arranged on the inner wall of the connecting ring, and the connecting ring clamps and positions the second positioning sleeve and the second needle seat by pressing the positioning sleeve boss with the ring plate.

5. The underwater equipment wire connection joint according to claim 4, characterized in that: A needle seat boss is arranged on one side of the second needle seat, and a clamping groove is arranged on the end wall of the second end of the connecting elbow corresponding to the needle seat boss, and the needle seat boss is embedded in the clamping groove.

6. The underwater equipment wire connection joint according to claim 1, characterized in that: A sealing sleeve is installed at the first end of the shell. The inner cavity of the sealing sleeve serves as a passage for wires connecting underwater equipment to penetrate into the inner cavity of the shell. The inner cavity of the sealing sleeve can be filled with sealing material that separates the sealing sleeve.

7. The underwater equipment wire connection joint according to claim 1, characterized in that: A locking nut is rotatably sleeved on the connecting ring, and a locking external thread matching with the locking nut is arranged on the outer wall of the second end of the shell.

8. The underwater equipment wire connection joint according to claim 1, characterized in that: The first needle seat comprises a first seat body and a first current needle mounted on the first seat body, the second needle seat comprises a second seat body and a second current needle mounted on the second seat body, the first current needle and the second current needle are arranged correspondingly, and one of the first current needle and the second current needle is a sub-current needle in a sub-mother current needle group, and the other is a mother current needle in the sub-mother current needle group, and when the first needle seat and the second needle seat are in a plug-in mating state, the first current needle and the second current needle are in contact and conduction; and / or, The first end of the connecting elbow is equipped with a threading terminal, and the threading terminal includes: A locking cover, the locking cover being threadedly connected to the first end of the connecting elbow; A sealing rubber plug, which is installed in the inner cavity of the locking cover, and when the locking cover is locked in a state where the elbow end is connected, the sealing rubber plug is in a pressurized state; A wire tail protective sleeve, wherein the wire tail protective sleeve is threadedly connected to an end of the locking cover away from the connecting elbow; The locking cover, the sealing rubber plug and the wire tail protective cover are all provided with threading holes.

9. The underwater equipment wire connection joint according to claim 1, characterized in that: A first sealing ring is provided on the outer side wall of one end of the first positioning sleeve for the connecting ring sleeve; And / or, a second sealing ring is provided on the outer wall of the second end of the connecting elbow; And / or, a third sealing ring is provided on the first end surface of the housing; And / or, a fourth sealing ring is provided on the outer side wall of one end of the first positioning sleeve connected to the housing.

10. An underwater photographic device, characterized in that: It comprises a photographic equipment body, on which the underwater equipment wire connecting joint according to any one of claims 1 to 9 is installed.

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