CN219821725U - Buoyancy adjusting device and shooting equipment - Google Patents

Abstract

The utility model relates to a buoyancy adjusting device and shooting equipment, wherein the buoyancy adjusting device comprises a shell, a first cover piece and a volume changing part, the shell is provided with a cavity containing a first space which is arranged in a sealing way, the first cover piece is arranged on the shell, an installation structure for installing an external device is constructed on the first cover piece, and the volume changing part is arranged in the cavity. The installation structure is movable relative to the shell and is used for driving the volume changing part to change the volume of the first space so as to adjust the buoyancy of the buoyancy adjusting device. According to the technical scheme, a user can operate the mounting structure on the first cover piece to drive the volume changing part to adjust the volume of the first space, so that the buoyancy adjustment of the buoyancy adjusting device is realized.

Description

Buoyancy adjusting device and shooting equipment

Technical Field

The utility model relates to the field of underwater equipment, in particular to a buoyancy adjusting device and shooting equipment.

Background

At present, the state of floating, sinking, suspending and the like of the underwater equipment in water is mainly regulated by a buoyancy regulating device. The existing buoyancy adjusting devices such as buoyancy rods and buoyancy tanks can only provide fixed density with specific capacity and specific mass, the buoyancy adjusting range is limited, the application range is small, and the personalized requirements of users cannot be met.

Disclosure of Invention

Based on the problems that the buoyancy adjusting range of the current buoyancy adjusting device is limited, the application range is small, and the personalized requirements of users cannot be met, the utility model provides the buoyancy adjusting device and the shooting equipment.

A buoyancy adjustment device comprising:

a housing having a cavity formed therein, the cavity including a first space provided in a closed manner;

a first cover member provided to the housing, on which a mounting structure for mounting an external device is constructed; a kind of electronic device with high-pressure air-conditioning system

A volume changing portion disposed within the cavity;

the installation structure is movable relative to the shell and is used for driving the volume changing part to change the volume of the first space so as to adjust the buoyancy of the buoyancy adjusting device.

In some embodiments, the volume changing portion is partitioned within the cavity to form the first space and a second space, the second space being in communication with the housing exterior;

the volume changing portion is configured to be able to simultaneously change the volumes of the first space and the second space to change the buoyancy of the buoyancy adjusting device.

In some embodiments, the volume-changing portion includes a volume-changing member that separates to form the first space and the second space within the cavity;

the volume changing piece is in transmission connection with the mounting structure and is movably arranged relative to the cavity.

In some embodiments, the volume changing member is movably connected with the inner wall of the cavity in a sealing manner, and both sides thereof in the moving direction of the volume changing member are capable of defining the first space and the second space together with the inner wall of the cavity, respectively.

In some embodiments, the mounting structure is rotatably disposed to the housing and is capable of driving the volume changing portion to change the volume of the first space during rotation.

In some embodiments, the first cover member covers the first opening of the cavity, and comprises a limiting cover and a pressing member which are connected in a split manner, and the pressing member is at least partially positioned in the cavity; the limiting cover is provided with the mounting structure, and at least part of the mounting structure is positioned outside the cavity;

the pressing piece and the limiting cover jointly cover the first opening, and the shell is clamped between the pressing piece and the limiting cover.

In some embodiments, at least one of the hold down and the limit cap is formed with a mating protrusion protruding toward each other, the mating protrusion being sealingly coupled to the first opening.

In some embodiments, one of the pressing member and the limit cover protrudes toward each other to form a convex edge, and the other of the pressing member and the limit cover is recessed toward each other to form a groove, and the convex edge is in concave-convex fit with the groove.

In some embodiments, the buoyancy adjustment device further comprises a transmission structure drivingly connecting the mounting structure and the volume changing portion.

In some embodiments, the drive structure includes a mating push screw and a mating nut, one of which connects the first closure member and the other of which connects the volume changing member.

In some embodiments, the mating nut includes a relief cavity and a threaded mating hole disposed through the relief cavity, and the push screw is threadably coupled to the threaded mating hole and movable within the relief cavity.

In some embodiments, the buoyancy adjustment device further comprises a second cover member that covers the second opening of the cavity, the second cover member having a weight structure configured thereon.

In some embodiments, the first cover member is sealed with the housing, and the second cover member is provided with a through hole, and the through hole communicates the inside and the outside of the cavity; and/or the number of the groups of groups,

the counterweight structure is detachably arranged relative to the housing.

In some embodiments, the mounting structure includes a jaw for gripping an external device.

In some embodiments, the housing is a transparent article; and/or scale marks are arranged on the shell.

A photographing apparatus, comprising:

a buoyancy adjustment device according to any one of the preceding claims;

a camera is selectively mounted to the mounting structure.

In some embodiments, the buoyancy adjustment device further comprises a waterproof housing disposed in the housing and formed with a waterproof cavity within which the camera is located.

Above-mentioned buoyancy adjusting device and shooting equipment, the user can operate the mounting structure on the first lid and come the volume of drive volume change portion regulation first space, change the space size that is occupied by gas in the cavity from this, and then change the size of the buoyancy that the casing receives in water for buoyancy adjusting device can carry out individualized buoyancy adjustment according to the user's demand, and buoyancy adjusting device can be collocated external device type is wider, and buoyancy adjusting device's accommodation is bigger.

Drawings

FIG. 1 is a schematic illustration of the external shape of a buoyancy adjustment device according to some embodiments.

Fig. 2 is a schematic view of the internal structure of the buoyancy adjusting device shown in fig. 1 in a state.

Fig. 3 is a schematic view of the internal structure of the buoyancy adjusting device shown in fig. 1 in another state.

Fig. 4 is a schematic structural view of a housing of some embodiments.

Fig. 5 is a schematic diagram of a transmission structure of the volume changing portion and the driving portion in the buoyancy adjusting device shown in fig. 2.

FIG. 6 is a schematic external view of a buoyancy adjustment device according to some embodiments.

Fig. 7 is a schematic view of an internal structure of the buoyancy adjusting device shown in fig. 6.

Fig. 8 is an exploded view of the buoyancy adjusting device shown in fig. 7.

Fig. 9 is a schematic structural diagram of a photographing apparatus of some embodiments.

Reference numerals illustrate:

1000. buoyancy adjusting device; 2000. a camera; 100. a housing; r, cavity; r1, a first space; r2, a second space; d1, a first opening end; d2, a second opening end; 120. a cover member; k. a through hole; w, opening; w1, a first opening; w2, a second opening; 121. a first cover member; 121a, a limit cover; a1, convex edges; 121b, a compression member; b1, matching with a convex column; b2, grooves; 121c, a second seal; 121d, mounting structure; d1, clamping jaws; c. a clamping groove; 122. a second cover member; 122e, a counterweight structure; 122f, a cover; 200. a volume changing section; 210. a volume changing member; 220. a first seal; 320. a transmission structure; 320i, pushing the screw; 320j, mating a nut; j1, avoiding the cavity; j2, a threaded mating hole; F. a direction of movement; 400. a waterproof case; 401. a water-proof cavity.

Detailed Description

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

In the description of the present utility model, it should be understood that, if any, these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., are used herein with respect to the orientation or positional relationship shown in the drawings, these terms refer to the orientation or positional relationship for convenience of description and simplicity of description only, and do not indicate or imply that the apparatus or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model.

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

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

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

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

The embodiment of the utility model provides a buoyancy adjusting device and shooting equipment in order to meet the personalized buoyancy adjusting requirement of a user on the buoyancy adjusting device.

The buoyancy adjusting device provided by the embodiment of the utility model is described in detail below.

Referring to fig. 1 to 5, a buoyancy adjusting device 1000 according to an embodiment of the present utility model includes a housing 100, a first cover 121 and a volume changing portion 200, wherein the housing 100 is formed with a cavity R containing a first space R1 arranged in a sealed manner, the first cover 121 is arranged on the housing 100, a mounting structure 121d for mounting an external device is configured thereon, and the volume changing portion 200 is arranged in the cavity R. Wherein, the mounting structure 121d is movable relative to the housing 100 and is used for driving the volume changing portion 200 to change the volume of the first space R1 so as to adjust the buoyancy of the buoyancy adjusting device 1000.

The housing 100 forms at least part of the external appearance of the buoyancy adjusting device 1000. Understandably, the housing 100 has an opening W communicating with the cavity R, and the first closing member 121 is provided at the opening W. Please refer to fig. 4. The housing 100 has a first opening end D1 disposed opposite to each other, and the first cover 121 covers the first opening W1 of the first opening end D1. The housing 100 has a cavity R therein, and the cavity R includes a first space R1, which does not exceed the range of the cavity R no matter how the volume of the first space R1 is changed. The housing 100 may be, but is not limited to being, a plastic piece.

The first cover 121 includes a mounting structure 121d, and the mounting structure 121d is used to mount an external device. The external device may be, but is not limited to, a camera 2000, an unmanned aerial vehicle, a data acquisition device, etc. The data acquisition device can be, but is not limited to, a temperature data acquisition device, a pressure data acquisition device and the like. The mounting structure 121d is in driving connection with the volume changing portion 200, and it serves as a force applying structure for driving the volume changing portion 200 to change the volume of the first space R1 after the force is applied by the user operation.

The first space R1 is hermetically provided, which may be vacuum or hollow, or may be filled with an inert gas, etc., and the first space R1 is not communicated with the outside of the housing 100, and the mass of the substance contained therein is not changed, and when the volume of the first space R1 is changed, the density thereof is changed, so that the density of the housing 100 can be changed. Since the first space R1 is closed, when the volume thereof is changed, the volume of the space in the cavity R, which is represented as hollow/vacuum, is increased, and the buoyancy of the housing 100 forming the cavity R in water is changed. The larger the volume of the first space R1, the less dense the housing 100, and the greater the buoyancy the housing 100 is subjected to in the water, and vice versa.

The first space R1 may be entirely defined by the volume changing portion 200, or the first space R1 may be defined by the wall surface of the cavity R and the volume changing portion 200.

In the process of changing the volume, the volume of the first space R1 can occupy all the cavities R until reaching the maximum space, and can also be reduced to zero until reaching the minimum space. Of course, the first space R1 may always remain in a state greater than zero during the change of volume. The degree of change in volume of the first space R1 is not limited in the embodiment of the present utility model.

The volume changing portion 200 is provided in the cavity R and is capable of changing the volume of the first space R1. For example, the volume changing portion 200 is an air bag member disposed in the cavity R, and the outer wall of the air bag member may enclose the wall surface of the cavity R to form the first space R1, where the mounting structure 121d may include a filling device, and the filling device may change the volume of the first space R1 during movement relative to the housing 100 (e.g., the filling device has an inflator and a filling chamber, where the filling chamber is filled with a filling material, and the inflator communicates with the air bag member, and when the inflator moves relative to the housing 100 under operation, the filling material can be filled into the air bag member from the filling chamber), and filling or removing the filling material (gas, liquid, solution, etc.) from the filling chamber can be performed.

As for the specific configuration of the volume changing portion 200, not limited to the above-described balloon form, a scheme mentioned in the following embodiment may also be adopted as long as it is possible to realize that the volume changing portion 200 changes the volume of the first space R1.

In the technical scheme of the utility model, a user can operate the mounting structure 121d on the first cover member 121 to drive the volume changing part 200 to adjust the volume of the first space R1, thereby changing the space occupied by the gas in the cavity R, and further changing the buoyancy of the housing 100 in the water, so that the buoyancy adjusting device 1000 can perform personalized buoyancy adjustment according to the user requirement, the types of external devices which can be matched with the buoyancy adjusting device 1000 are wider, and the application range of the buoyancy adjusting device 1000 is wider. In addition, in the buoyancy adjusting process, the first cavity R is always contained in the range where the cavity R is located, so that the appearance of the housing 100 is not changed, the appearance integrity and consistency of the buoyancy adjusting device 1000 are maintained, and the buoyancy adjusting device 1000 is more convenient to use and store.

In some embodiments, referring to fig. 2 and 3, the volume changing portion 200 forms a first space R1 and a second space R2 inside the cavity R, and the second space R2 communicates with the outside of the housing 100. The volume changing part 200 is configured to be able to synchronously change the volumes of the first space R1 and the second space R2 to change the buoyancy of the buoyancy adjusting device 1000.

When the volume changing portion 200 is an air bag member, the air bag member may be communicated with the external filling device, the inner wall of the air bag member may form a second space R2, the outer wall of the air bag member and the wall surface of the cavity R may form a first space R1, at this time, the cavity R may be closed, and the second space R2 may be communicated with the external filling device through the air bag member, so as to receive the entry and the discharge of the external substances.

In other examples, the first space R1 may be formed by enclosing the inner wall of the volume changing portion 200, the second space R2 may be formed by enclosing the outer wall of the volume changing portion 200 and the wall surface of the cavity R, the second space R2 may be in communication with the outside, in the case of an underwater environment, the second space R2 may be in communication with the underwater environment, that is, water may enter the second space R2, and when the volume of the second space R2 becomes large, the weight of the water entering the housing 100 may be changed.

The volume changing part 200 simultaneously changes the volumes of the first space R1 and the second space R2 formed by being divided by itself, and it is understood that the volumes of the first space R1 and the second space R2 should be inversely simultaneously changed, that is, the volumes of the second space R2 decrease when the volumes of the first space R1 increase, whereas the volumes of the second space R2 increase when the volumes of the first space R1 decrease.

When the volume of the first space R1 increases, the density of the first space R1 decreases, and simultaneously the volume of the second space R2 decreases, and the material in the second space R2 is continuously discharged out of the cavity R, so that the overall mass of the buoyancy adjusting device 1000 decreases. That is, when the first space R1 is increased or decreased, both the density and the mass of the housing 100 are decreased or both are increased, and thus, the buoyancy adjusting effect of the housing 100 is more remarkable.

In some embodiments, referring to fig. 2 and 3, the volume changing portion 200 includes a volume changing member 210, and the volume changing member 210 forms a first space R1 and a second space R2 in the cavity R. The volume changing member 210 is in driving connection with the mounting structure 121d and is movably arranged with respect to the cavity R.

The volume changing member 210 is a structure in the volume changing portion 200 that is responsible for separating the first space R1 and the second space R2, and is capable of changing the volumes of the first space R1 and the second space R2 during movement.

As an example (not shown), the volume changing part 200 further includes a fixing plate fixedly disposed in the cavity R, the volume changing member 210 has an open end communicating with the inside thereof, the open end thereof is in sealing abutment with the fixing plate, and the volume changing member 210 itself may be stretched or shortened in the moving direction F with respect to the fixing plate, and the volume changing member 210 and the fixing plate may enclose the first space R1. At this time, the volume changing member 210 may be formed of a telescopic tube configuration.

At this time, the volume changing member 210 is driven to move by the mounting structure 121d to change the volumes of the first space R1 and the second space R2, and the volume changing scheme of the first space R1 is easy to implement.

In some embodiments, referring to fig. 2 and 3, the volume-changing member 210 is movably and sealingly connected to the inner wall of the cavity R, and two sides of the volume-changing member in the moving direction F can define a first space R1 and a second space R2 together with the inner wall of the cavity R.

The volume changing member 210 may have a plate shape, a block shape, or the like. Referring to fig. 5 and 8, the volume changing member 210 is hermetically connected to the wall surface of the cavity R, and specifically, the volume changing portion 200 further includes a first sealing member 220, where the first sealing member 220 is sleeved on the outer peripheral surface of the volume changing member 210 and is hermetically connected between the volume changing member 210 and the wall surface of the cavity R. The first sealing member 220 may be provided in plurality, and the plurality of first sealing members 220 are sequentially arranged in the moving direction F of the volume changing member 210. Wherein the outer circumferential surface of the volume changing member 210 is an outer surface disposed around the moving direction F thereof.

Understandably, the first space R1 and the second space R2 defined by the volume-changing member 210 are adjacently arranged in the moving direction F of the volume-changing member 210.

At this time, the first space R1 and the second space R2 are defined by the volume changing member 210 and the wall surface of the cavity R, so that the structural design of the volume changing member 210 is simpler, and the structure of the buoyancy adjusting device 1000 is simplified.

In some embodiments, the mounting structure 121d is rotatably provided to the housing 100, and is capable of driving the volume changing part 200 to change the volume of the first space R1 during rotation.

The mounting structure 121d is rotatable relative to the housing 100, and is capable of driving the volume changing portion 200 to change the volume of the first space R1 when rotated by a user operation. Specifically, the mounting structure 121d moves the volume changing member 210 during rotation. Illustratively, the mounting structure 121d is threadably coupled to the housing 100, with the mounting structure 121d being coupled to the volume-changing member 210 via the transmission structure 320. The transmission structure 320 may be a ball screw structure, in which a screw is rotated with the force applying structure and is movable on the rotation axis, and a ball bearing is connected with the volume changing member 210.

At this time, by driving the volume changing part 200 to change the volume of the first space R1 by the rotating mounting structure 121d, it is possible to reduce the movement space occupied by the mounting structure 121d, contributing to improvement of the structural compactness and the appearance consistency of the buoyancy adjusting device 1000.

In some embodiments, referring to fig. 2 and 3, the first cover member 121 covers the first opening W1 of the cavity R, and includes a limiting cover 121a and a pressing member 121b that are separately connected, and the pressing member 121b is at least partially located in the cavity R. The limiting cover 121a is provided with a mounting structure 121d, and at least part of the mounting structure is located outside the cavity R. The pressing member 121b and the limiting cover 121a jointly cover the first opening W1, and the housing 100 is clamped between the pressing member 121b and the limiting cover 121 a.

The first cover 121 is disposed at the first opening end D1 of the housing 100, a first opening W1 communicating with the cavity R is disposed on the first opening end D1, the limiting cover 121a is located outside the cavity R, and the pressing member 121b is located inside the cavity R and covers the first opening W1 together. The part of the first opening end D1 is clamped and limited between the limiting cover 121a and the pressing member 121 b.

The limiting cover 121a and the pressing member 121b jointly cover the first opening W1, which may be that the limiting cover 121a covers the first opening W1 and the pressing member 121b does not cover the first opening W1, or that the pressing member 121b covers the first opening W1 and the limiting cover 121a does not cover the first opening W1, or that both the limiting cover and the pressing member 121b are respectively arranged at the inner and outer ends of the first opening W1.

The limiting cover 121a and the pressing member 121b may be fixedly coupled by, but not limited to, a fastener such as a bolt, a screw, or the like. In actual installation, the pressing member 121b may be placed into the cavity R and covered at the first opening W1, then the limiting cover 121a is covered at the first opening W1 from the outside of the cavity R, and then the limiting cover 121a and the pressing member 121b are locked and connected by using a fastener, so as to clamp a portion of the first opening end D1 therebetween, thereby realizing the fixed installation of the two and the housing 100. In addition, the limiting cover 121a and the pressing member 121b can rotate relative to the housing 100 when the mounting structure 121d rotates, so that the mounting structure 121d is rotatably connected with the housing 100.

It should be noted that, the limiting cover 121a and the pressing member 121b can be rotatable together with respect to the housing 100 while pressing the housing 100 (i.e., the first opening end D1), so as to implement rotatable arrangement of the mounting structure 121D on the housing 100.

At this time, the rotatable setting of the mounting structure 121d with respect to the housing 100 is achieved through the limiting cover 121a and the pressing member 121b, and when the mounting structure 121d rotates with respect to the housing 100 through the limiting cover 121a and the pressing member 121b, no movement in the rotation axis direction occurs, which is conducive to simplifying the structure of the buoyancy adjusting device 1000, and making the buoyancy adjusting device 1000 more compact in structure.

In some embodiments, referring to fig. 2 and 3, at least one of the pressing member 121b and the limiting cover 121a protrudes toward each other to form a mating protrusion b1, and the mating protrusion b1 is hermetically coupled to the first opening W1.

That is, the portion of at least one of the pressing member 121b and the limiting cover 121a extends into the first opening W1 and is in sealing engagement with the first opening W1, so that the probability of air leakage at the first opening W1 can be reduced, and in particular, the air tightness of the first space R1 can be maintained when the first cover member 121 defines the first space R1.

In some embodiments, referring to fig. 2 and 3, one of the pressing member 121b and the limiting cover 121a faces each other to form a convex edge a1, and the other faces each other to form a concave groove b2, and the convex edge a1 is in concave-convex fit with the concave groove b 2.

The pressing member 121b may be formed with a convex edge a1 or a concave groove b2 facing the limiting cover 121a at the same time or alternatively, and the limiting cover 121a may be formed with a convex edge a1 or a concave groove b2 facing the pressing member 121b at the same time or alternatively, which is not particularly limited, as long as the convex edge a1 and the concave groove b2 on the two may be in concave-convex fit.

At this time, the arrangement of the convex edge a1 and the concave groove b2 not only can initially position the limiting cover 121a and the pressing member 121b, but also can increase the contact area of the limiting cover 121a and the pressing member 121b, and improve the connection reliability of the limiting cover and the pressing member.

In some embodiments, referring to fig. 2 and 3, the buoyancy adjusting device 1000 further includes a transmission structure 320, wherein the transmission structure 320 is in transmission connection with the mounting structure 121d and the volume changing portion 200.

The transmission structure 320 is a structure capable of transmitting the force of the mounting structure 121d to the volume changing portion 200. Specifically, the transmission structure 320 converts the rotational moment of the mounting structure 121d into a driving force that drives the movement of the volume-changing portion 200. The transmission structure 320 may be, but not limited to, a cable, and the volume changing part 200 may be pulled to move when the mounting structure 121d winds/unwinds the cable.

Specifically, the transmission structure 320 is in transmission connection with the mounting structure 121d and the volume changing member 210.

In some embodiments, referring to fig. 2 and 3, the transmission structure 320 includes a pushing screw 320i and a mating nut 320j that are coupled, one of the pushing screw 320i and the mating nut 320j is connected to the first cover 121, and the other is connected to the volume changing portion 200.

The push screw 320i is a member having an external thread structure, and the mating nut 320j is a member having an internal thread hole structure. The two are connected by internal and external threads. When the mounting structure 121d rotates, the push screw 320i rotates, and the mating nut 320j moves itself in the rotation axis direction while following the rotation of the push screw 320i, thereby changing the movement of the volume changing portion 200.

At this time, when the mounting structure 121d rotates, the mounting structure 121d itself may not need to move in the direction of the rotation axis, and the mounting structure 121d may only rotate relative to the housing 100, so that the movement space of the mounting structure 121d is substantially unchanged, and the structural compactness and the appearance consistency of the buoyancy adjusting device 1000 are better. Moreover, the transmission mode of matching the internal thread and the external thread is adopted, and the transmission is reliable.

In some embodiments, referring to fig. 2 and 3, the mating nut 320j includes a relief cavity j1 and a threaded mating hole j2 disposed through the relief cavity j1, and the pushing screw 320i is threadably coupled to the threaded mating hole j2 and is capable of moving within the relief cavity j 1.

The push screw 320i is screw-coupled with the screw coupling hole j2, and can move in and out of the escape cavity j1 when the screw coupling hole j2 is rotated and moved, so that the volume changing member 210 is moved. The depth of the relief cavity j1 in the axial direction of the screw-coupling hole j2 influences the moving distance of the volume-changing member 210.

At this time, the existence of the avoidance chamber j1 can make the volume-changing member 210 have a larger movement stroke, the volume-adjusting range of the first space R1 is larger, and the buoyancy-adjusting range of the buoyancy-adjusting device 1000 is larger.

In some embodiments, referring to fig. 6 to 8, the buoyancy adjusting device 1000 further includes a second cover 122, the second cover 122 covers the second opening W2 of the cavity R, and a counterweight structure 122e is configured on the second cover 122.

With continued reference to fig. 4, the housing 100 further has a first opening end D2, where a second opening W2 is disposed at the first opening end D2, and the second cover 122 covers the second opening W2. The second cover 122 may be fastened, welded, glued, riveted, etc. to the first open end D2 of the housing 100, and preferably the second cover 122 is detachably connected to the housing 100.

The second cover member 122 is provided with a weight structure 122e, and the weight structure 122e is mainly used for increasing the weight of the buoyancy adjusting device 1000, so that the buoyancy of the buoyancy adjusting device 1000 can be further adjusted by the weight structure 122e. The density of the weight structures 122e may be greater than, equal to, or less than the density of water, with different densities of weight structures 122e having different buoyancy adjusting effects on the buoyancy adjusting device 1000. Generally, when the density of the weight structure 122e is higher than that of water, sinking of the buoyancy adjustment device 1000 is easily achieved. When the density of the weight structure 122e is lower than that of water, the floating of the buoyancy adjusting device 1000 is easily achieved.

At this time, the buoyancy adjusting device 1000 may expand the buoyancy adjusting range of the buoyancy adjusting device 1000 via the weight structure 122e on the second cover 122. Further, the second cover 122 is provided so that the buoyancy adjusting device 1000 can be easily assembled by installing the volume changing portion 200 and the pressing member 121b through the second opening W2 when installing the volume changing portion 200 and the first cover 121.

In some embodiments, referring to fig. 7, the first cover member 121 is disposed in a sealing manner with the wall of the housing 100, and the second cover member 122 is provided with a through hole k, which communicates with the inside and outside of the cavity R.

The through hole k is arranged to communicate the inside and the outside of the cavity R, and the cavity R includes the first space R1 and the second space R2, where the first space R1 is hermetically arranged, and the second space R2 is communicated with the outside, that is, the through hole k is arranged to communicate the second space R2 with the outside.

At this time, the first cover 121 is sealed with the housing 100, and the through hole k provided in the second cover 122 is used to communicate the inside and outside of the second space R2, so that the communication between the second space R2 and the outside is easy to be achieved, and the through hole k is processed in the second cover 122, so that the processing cost is low.

In other embodiments, the through hole k may be provided only on the first cover 121. Alternatively, the through hole k is provided in both the first and second covers 121 and 122. The arrangement of the through holes k is related to the formation of the second space R2. When the second space R2 is formed by the second cover 122, the volume changing portion 200, and the housing 100, the through hole k is disposed in the second cover 122. When the second space R2 is formed by the first cover 121, the volume changing portion 200, and the housing 100 being enclosed together, the through hole k may be provided at the first cover 121. When the first cover 121, the second cover 122, the volume changing part 200, and the housing 100 together form the second space R2, the through hole k may be simultaneously provided on the first cover 121 and the second cover 122.

In other embodiments, the buoyancy adjusting device 1000 may also enable the second space R2 to communicate with the outside through the second opening W2 on the housing 100 without providing the second cover 122 additionally, as shown in fig. 2 and 3.

In particular, in the embodiment, the housing 100 forms the cavity R around the preset axial direction, and the first and second covers 121 and 122 are located at opposite ends of the housing 100 in the preset axial direction.

The housing 100 forms a cavity R around a predetermined axial direction, and may be cylindrical, square cylindrical, or the like. The housing 100 is formed with a first opening W1 and a second opening W2 at two ends (a first opening end D1 and a second opening end D2, respectively) in a preset axial direction, and the first cover 121 and the second cover 122 are disposed in the first opening W1 and the second opening W2, respectively, so that the two openings are disposed opposite to each other in the preset axial direction.

In practical applications, the mounting structure 121d may be used to drive the volume-changing member 210 to move along a preset axial direction, and change the volume of the first space R1 during the movement.

When the housing 100 is disposed around the preset axis and the first cover member 121 and the second cover member 122 are disposed opposite to each other in the preset axial direction, in practical use, when the mounting structure 121d changes the buoyancy of the buoyancy adjusting device 1000, the buoyancy of the buoyancy adjusting device 1000 changes substantially in the preset axial direction, and the eccentric change is less likely to occur, which helps to maintain the balance of the buoyancy adjusting device 1000 in water.

In some embodiments, the weight structure 122e is removably disposed relative to the housing 100. Specifically, the weight structure 122e may be detachably disposed with respect to the housing 100 by means of a snap-fit and threaded connection. Further, the second cover 122 includes a cover 122f, the cover 122f covers the first opening D2, and the counterweight 122e is detachably disposed on the cover 122 f.

At this time, the counterweight structure 122e is detachable, so that the counterweight structure 122e with different weights and densities can be flexibly matched by a user, and the adaptability of the buoyancy adjusting device 1000 is better.

In some embodiments, referring to fig. 1-8, the mounting structure 121d includes a clamping jaw d1, where the clamping jaw d1 is used to clamp an external device.

Specifically, the clamping jaw d1 may have a clamping groove c, and the external device may have a fixing portion coupled with the clamping groove c, and the fixing portion may be fixed in the clamping groove c by fastening or the like. Of course, the specific configuration of the holding jaw d1 is not limited to the above-described one, and a person skilled in the art can make a conventional arrangement.

At this time, the external device is held by the holding jaw d1, and the external device is reliably mounted.

In some embodiments, the housing 100 is a transparent piece. Specifically, the housing 100 may be completely transparent or translucent, that is, the light transmittance of the housing 100 is not limited, and it is common that a human eye can see the movement of the volume changing member 210 inside the cavity R through the housing 100, so that the user can conveniently operate the device to obtain the first space R1 with a desired volume. The housing 100 may be made of acrylic, glass, or the like.

In some embodiments, graduations (not shown) are provided on the housing 100. One or more graduations may be provided on the housing 100, and when there are a plurality of graduations, the plurality of graduations may be arranged at intervals in the moving direction F of the volume changing member 210. Different scales can correspond to different buoyancy, or correspond to different product types, so that a user can conveniently and quickly adjust the buoyancy to required buoyancy, or quickly adjust the buoyancy to buoyancy corresponding to a product, and the adjustment time spent by the user can be reduced.

Referring to fig. 7 to 8, in an embodiment of the utility model, the buoyancy adjusting device 1000 includes a housing 100, a volume changing member 210, a first cover member 121 and a second cover member 122, wherein the housing 100 forms a cavity R around a preset axial direction, the first cover member 121 and the second cover member 122 are respectively disposed at two ends of the housing in the preset axial direction in a covering manner, the volume changing member 210 is movably disposed in the cavity R along the preset axial direction and is in sealing connection with a wall surface of the cavity R, a first space R1 is formed among the first cover member 121, the wall surface of the cavity R, the volume changing member 210 and the second cover member 122, a second space R2 is formed among the wall surface of the cavity R, the volume changing member 210 and the second cover member 122, and a through hole k is disposed on the second cover member 122. The first cover 121 includes a mounting structure 121d and the second cover 122 includes a weight structure 122e. The mounting structure 121d is in driving connection with the volume changing member 210 disposed in the cavity R via the push screw 320i and the mating nut 320j, and drives the volume changing member 210 to move along the inner wall of the cavity R when rotating relative to the housing 100, so as to be able to change the volume of the first space R1.

In addition, referring to fig. 9, fig. 9 is a schematic structural diagram of a photographing apparatus according to some embodiments, and the embodiment of the utility model further provides a photographing apparatus, including the buoyancy adjusting device 1000 and the camera 2000 in the above embodiments. The camera 2000 is optionally mounted to the mounting structure 121d.

The camera 2000 may be detached from and attached to the mounting structure 121d under the user operation, and the specific structure of the mounting structure 121d may be described above, and the mounting structure 121d may be directly provided on the housing 100 in addition to the housing 100 as a part of the first cover 121. The camera 2000 is a common component in the art, and has functions of photographing, image capturing, etc., and its specific type is not limited in the embodiment of the present utility model.

The photographing apparatus has all the advantageous effects of the above embodiments, and is not described herein.

In a further embodiment, the buoyancy adjusting device 1000 further comprises a waterproof housing 400, the waterproof housing 400 is provided to the housing 100, and a waterproof cavity 401 is formed, and the camera 2000 is located in the waterproof cavity 401.

The waterproof case 400 and the case 100 may be coupled, but not limited to, by the mounting structure 121d on the first cover 121, or may be directly coupled to the case 100. The waterproof case 400 may be adapted to the outer contour of the camera 2000 to reduce the influence of the waterproof case 400 on the overall buoyancy state, thereby more facilitating the adjustment of the buoyancy experienced by the buoyancy adjusting device 1000.

Optionally, the waterproof case 400 has a pick-and-place opening, and the camera 2000 is put in and out of the waterproof case 400 through the pick-and-place opening. When the waterproof case 400 and the camera 2000 are both provided on the housing 100, the waterproof case 400 covers the outside of the camera 2000, and the housing 100 seals the access port to seal the waterproof chamber 401. The camera 2000 may be directly mounted on the housing 100 or may be mounted on the housing 100 via the waterproof case 400.

At this time, even though the camera 2000 does not have a waterproof function, it is possible to waterproof by the waterproof case 400, improving the service life and the use reliability of the camera 2000.

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

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

Claims (17)

1. A buoyancy adjustment device, comprising:

a housing (100) in which a cavity (R) is formed, said cavity comprising a first space (R1) that is hermetically arranged;

a first cover (121) provided on the housing (100) and having a mounting structure (121 d) for mounting an external device thereon; a kind of electronic device with high-pressure air-conditioning system

A volume changing part (200) provided in the cavity (R);

wherein the mounting structure (121 d) is movable relative to the housing (100) and is configured to drive the volume changing portion (200) to change the volume of the first space (R1) to adjust the buoyancy of the buoyancy adjusting device.

2. The buoyancy adjustment device according to claim 1, wherein the volume changing portion (200) is divided within the cavity (R) to form the first space (R1) and a second space (R2), the second space (R2) being in communication with the outside of the housing (100);

the volume changing portion (200) is configured to be able to synchronously change the volumes of the first space (R1) and the second space (R2) to change the buoyancy of the buoyancy adjusting device.

3. The buoyancy adjustment device according to claim 2, wherein the volume changing portion (200) comprises a volume changing member (210), the volume changing member (210) being divided within the cavity (R) to form the first space (R1) and the second space (R2);

the volume changing member (210) is in driving connection with the mounting structure (121 d) and is movably arranged relative to the cavity (R).

4. A buoyancy adjustment device according to claim 3, characterized in that the volume-changing member (210) is movably and sealingly connected to the inner wall of the cavity (R) and can define the first space (R1) and the second space (R2) together with the inner wall of the cavity (R) on both sides in the direction of movement (F) of itself, respectively.

5. The buoyancy adjustment device according to claim 1, wherein the mounting structure (121 d) is rotatably arranged to the housing (100) and is capable of driving the volume changing portion (200) to change the volume of the first space (R1) during rotation.

6. The buoyancy adjustment device according to claim 5, wherein the first closing element (121) closes the first opening (W1) of the cavity (R) and comprises a limit cap (121 a) and a pressing element (121 b) connected separately, the pressing element (121 b) being at least partially located in the cavity (R); the limiting cover (121 a) is provided with the mounting structure (121 d), and at least part of the mounting structure is positioned outside the cavity (R);

the pressing piece (121 b) and the limiting cover (121 a) jointly cover the first opening (W1), and the shell (100) is clamped between the pressing piece (121 b) and the limiting cover (121 a).

7. The buoyancy adjustment device according to claim 6, wherein at least one of the hold-down member (121 b) and the limit cap (121 a) is formed protruding towards each other with a mating protrusion (b 1), the mating protrusion (b 1) being sealingly coupled to the first opening (W1).

8. The buoyancy adjustment device according to claim 6, wherein one of the pressing member (121 b) and the limit cap (121 a) is formed with a convex edge (a 1) protruding toward each other, the other is formed with a concave groove (b 2) recessed toward each other, and the convex edge (a 1) is mated with the concave groove (b 2) in a concave-convex manner.

9. The buoyancy adjustment device according to claim 5 further comprising a transmission structure (320), the transmission structure (320) drivingly connecting the mounting structure (121 d) and the volume changing portion (200).

10. The buoyancy adjustment device according to claim 9, wherein the transmission structure (320) comprises a mating push screw (320 i) and a mating nut (320 j), one of the push screw (320 i) and mating nut (320 j) being connected to the first closure member (121) and the other being connected to the volume changing portion (200).

11. The buoyancy adjustment device according to claim 10, wherein the mating nut (320 j) comprises a relief cavity (j 1) and a threaded mating hole (j 2) provided through the relief cavity (j 1), the push screw (320 i) being threadedly coupled to the threaded mating hole (j 2) and being movable within the relief cavity (j 1).

12. The buoyancy adjustment device according to claim 1, further comprising a second cover member (122), the second cover member (122) covering the second opening (W2) of the cavity (R), the second cover member (122) being configured with a weight structure (122 e).

13. The buoyancy adjustment device according to claim 12, wherein the first cover member (121) is arranged in a sealing manner with the housing (100), and the second cover member (122) is provided with a through hole (h), the through hole (h) communicating the inside and outside of the cavity (R); and/or the number of the groups of groups,

the weight structure (122 e) is removably disposed relative to the housing (100).

14. Buoyancy adjustment device according to claim 1, characterized in that the mounting structure (121 d) comprises a clamping jaw (d 1), the clamping jaw (d 1) being adapted to clamp an external device.

15. Buoyancy adjustment device according to claim 1, wherein the housing (100) is a transparent piece; and/or scale marks are arranged on the shell (100).

16. A photographing apparatus, characterized by comprising:

a buoyancy adjustment device as claimed in any one of claims 1 to 15;

a camera (2000) selectively mounted to the mounting structure (121 d).

17. The photographing apparatus according to claim 16, wherein the buoyancy adjusting device further comprises a waterproof case (400), the waterproof case (400) is provided to the housing (100) and is formed with a waterproof cavity (401), and the camera (2000) is located within the waterproof cavity (401).