CN110758686A

CN110758686A - Folding handle assembly and underwater propulsion device

Info

Publication number: CN110758686A
Application number: CN201911168586.1A
Authority: CN
Inventors: 熊明磊; 赵迎飞
Original assignee: Boya Gongdao Beijing Robot Technology Co Ltd
Current assignee: Boya Gongdao Beijing Robot Technology Co Ltd
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2020-02-07

Abstract

The invention provides a folding handle assembly and an underwater propulsion device, the folding handle assembly comprising: a fixed part; the handle body is rotatably connected with the fixing part; the first rotating part is rotatably arranged on the handle main body, and after the handle main body is unfolded, the first rotating part can rotate relative to the handle main body so as to conduct a driving circuit of the underwater propelling device; the child lock component is arranged on the handle body in a sliding mode, and after the handle body is unfolded, the child lock component can slide to a position abutted against the first rotating portion and limit rotation of the first rotating portion. According to the folding handle assembly provided by the invention, the handle main body can be folded or unfolded relative to the fixing part, and the underwater propeller occupies a small space after the handle main body is folded and is convenient to transport. Simultaneously the handle main part expandes the back, and child lock component can lean on and restrict the rotation of first rotation portion with first rotation portion, can prevent when children play that the mistake from touching first rotation portion, improves the security of using.

Description

Folding handle assembly and underwater propulsion device

Technical Field

The invention relates to the technical field of underwater equipment, in particular to a folding handle assembly and an underwater propulsion device.

Background

Underwater propulsors are a convenient means for a diver to learn to dive.

In the prior art, the handle outside the underwater propeller is mostly integrally formed with the shell, and the underwater propeller cannot be folded and is inconvenient to transport.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art or the related art.

In view of the above, it is an object of the present invention to provide a folding handle assembly.

It is an object of the present invention to provide an underwater propulsion device having a folding handle assembly as described above.

In order to achieve the above object, a first aspect of the present invention provides a folding handle assembly for an underwater propulsion device, comprising: a fixed part; the handle body is rotatably connected with the fixing part; the first rotating part is rotatably arranged on the handle main body, and after the handle main body is unfolded, the first rotating part can rotate relative to the handle main body so as to conduct a driving circuit of the underwater propelling device; the child lock component is arranged on the handle body in a sliding mode, and after the handle body is unfolded, the child lock component can slide to a position abutted against the first rotating portion and limit rotation of the first rotating portion.

In this scheme, the relative fixed part of handle main part physical stamina is folding or is expanded, and the folding underwater propulsor occupation space of folding back of handle main part is little, and the transportation is convenient. After the handle main part expandes, child lock component can lean on and restrict the rotation of first rotation portion with first rotation portion, can prevent when children play that the mistake from touching first rotation portion, improves the security of using.

In the above technical solution, preferably, the method further includes: the first rotating part is provided with a permanent magnet, the Hall switch is positioned at a first preset position after the handle body is unfolded, and the first rotating part can rotate to enable the permanent magnet to be close to the Hall switch and enable the Hall switch to be conducted; in the folding process of the handle main body, the second rotating portion rotates relative to the handle main body, and the Hall switch moves to the second preset position so as to keep the Hall switch in an off state when the first rotating portion rotates.

In any one of the above technical solutions, preferably, the child lock member is disposed at a rear side of the first rotating portion, and the second end is located between the child lock member and the first rotating portion, wherein after the child lock member abuts against the first rotating portion, in a folding process of the handle body, the second rotating portion rotates relative to the handle body, the second end rotates backwards and pushes the child lock mechanism to move backwards, and the child lock member and the first rotating portion are released from abutting.

In any of the above technical solutions, preferably, the method further includes: the first rotating shaft is fixedly connected with the handle and rotatably connected with the fixing part, and the front end of the first rotating part is rotatably connected with the first rotating shaft; the first elastic piece is sleeved outside the first rotating shaft and abutted against the handle main body and the first rotating portion, wherein when the handle main body is unfolded, the first elastic piece recovers deformation and drives the first rotating portion to be unfolded towards one side far away from the handle main body.

In any of the above technical solutions, preferably, when the handle body is folded, the first end slides forward to the front side of the first rotating shaft and abuts against the front end of the first rotating portion, and the first end drives the first rotating portion to rotate toward the handle body side, so that the first rotating portion is folded.

In any of the above solutions, preferably, the folding handle assembly according to the claim, wherein the fixed portion is provided with a slide groove, and the first end of the second rotating portion is inserted into the slide groove and can move along the slide groove.

In any of the above technical solutions, preferably, the method further includes: clamping device locates on the fixed part, and clamping device can with the joint of handle main part to make the handle main part keep folding or keep unfolding, wherein, when the handle main part is in fold condition, clamping device and handle main part relieve the joint back, the second elastic component can drive the handle main part and expand.

In any of the above technical solutions, preferably, the clamping device includes: the clamping bulge is connected with the fixed part in a sliding mode, and a first clamping structure and a second clamping structure matched with the clamping bulge are arranged on the handle body; third elastic component is connected with joint arch and fixed part, and wherein, the joint arch can with second joint structure joint to make the handle main part keep folding, the joint arch can slide to the direction of keeping away from the handle main part, third elastic component deformation volume increase and joint arch and second joint structure are relieved and are leaned on, the handle main part is rotated to the state of expanding by fold condition, joint arch and first joint structure joint afterwards makes the handle main part keep expanding the state.

In the above technical solution, preferably, the fixing portion is a U-shaped structure, the front end of the handle body extends into the U-shaped structure and is rotatably connected with two inner side walls of the U-shaped structure, and the front end of the handle body and the closed end of the U-shaped structure are arranged at an interval to form a gap for installing the clamping device; the clamping bulge is arranged in the gap in a sliding mode, and two ends of the third elastic piece are connected with the closed end of the U-shaped structure and the clamping bulge respectively; the third elastic piece can drive the clamping protrusion to slide backwards, so that the clamping protrusion abuts against the handle body.

In a second aspect of the invention, there is provided an underwater propulsion device comprising the folding handle assembly of any one of the first aspects.

In the above technical solution, preferably, there are two folding handle assemblies, and the hall switches of the two folding handle assemblies are simultaneously connected in series in the driving circuit of the underwater propulsion device.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

FIG. 1 is a schematic view of a folded handle assembly according to one embodiment of the present invention in an unfolded configuration;

FIG. 2 is a schematic block diagram of a folding process of the folding handle assembly according to one embodiment of the present invention;

FIG. 3 is a schematic block diagram of a folding process of the folding handle assembly according to one embodiment of the present invention;

FIG. 4 is a schematic view of a folded handle set according to an embodiment of the present invention;

FIG. 5 is a schematic view of a folded handle set according to an embodiment of the present invention;

fig. 6 is a schematic view showing a structure of the folding handle set after being unfolded according to an embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 6 is:

the handle comprises a 10 fixing part, a 11 sliding groove, a 20 handle body, a 30 first rotating part, a 40 permanent magnet, a 50 second rotating part, a 51 first end, a 52 second end, a 53 driving protrusion, a 55 second rotating shaft, a 60 Hall switch, a 70 clamping device, a 71 clamping protrusion, a 72 third elastic piece, an 80 child lock component, a 81 column, a 82 resetting protrusion, an 83 shifting block and a 90 first rotating shaft.

Detailed Description

So that the manner in which the above recited objects, features and advantages of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments thereof which are illustrated in the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

Some embodiments according to the invention are described below with reference to fig. 1 to 6.

As shown in fig. 1 to 6, the technical solution of the first aspect of the present invention provides a folding handle assembly for an underwater propulsion device, comprising: a fixed part 10; and a handle body 20 rotatably connected to the fixing part 10; the first rotating part 30 is rotatably arranged on the handle main body 20, and after the handle main body 20 is unfolded, the first rotating part 30 can rotate relative to the handle main body 20 so as to conduct a driving circuit of the underwater propulsion device; the child lock member 80 is slidably disposed on the handle body 20, and after the handle body 20 is unfolded, the child lock member 80 can slide to a position abutting against the first rotating portion 30 and restrict the rotation of the first rotating portion 30.

In this scheme, handle main part 20 can be folded or expand fixed part 10 relatively, and underwater propulsor occupation space is little after handle main part 20 folding, and the transportation is convenient. After the handle body 20 is unfolded, the child lock member 80 can abut against the first rotation portion and restrict the rotation of the first rotation portion, and the child can be prevented from mistakenly touching the first rotation portion when playing, thereby improving the safety of use.

In an underwater scene, the provision of the child lock member 80 prevents the possibility of the underwater propeller being misactivated, resulting in drowning of the child.

When on land, the child lock member 80 is arranged to effectively prevent fingers of a child from being twisted by the underwater propeller.

In the above technical solution, preferably, the method further includes: a second rotating part 50, wherein a first end 51 of the second rotating part 50 is slidably connected with the fixed part 10, a second end 52 of the second rotating part 50 is rotatably connected with the handle main body 20, a hall switch 60 is arranged on the second end 52, and the hall switch 60 is connected in series with a driving circuit of the underwater propulsion device, wherein a permanent magnet 40 is arranged on the first rotating part 30, after the handle main body 20 is unfolded, the hall switch 60 is located at a first preset position, and the first rotating part 30 can rotate so that the permanent magnet 40 is close to the hall switch 60 and the hall switch 60 is turned on; during the folding process of the handle main body 20, the second rotating part 50 rotates relative to the handle main body 20, and the hall switch 60 moves to the second preset position, so that the hall switch 60 maintains the off state when the first rotating part 30 rotates.

In any of the above technical solutions, preferably, the child lock member 80 is disposed at the rear side of the first rotating portion 30, and the second end 52 is located between the child lock member 80 and the first rotating portion 30, wherein after the child lock member 80 abuts against the first rotating portion 30, during the folding process of the handle main body 20, the second rotating portion 50 rotates relative to the handle main body 20, the second end 52 rotates backwards and pushes the child lock mechanism to move backwards, and the child lock member 80 disengages from the first rotating portion 30.

In any of the above technical solutions, preferably, the method further includes: a first rotating shaft 90 fixedly connected with the handle and rotatably connected with the fixing portion 10, and the front end of the first rotating portion 30 is rotatably connected with the first rotating shaft 90; the first elastic element is sleeved outside the first rotating shaft 90 and abuts against the handle body 20 and the first rotating portion 30, wherein when the handle body 20 is unfolded, the first elastic element recovers to deform and drives the first rotating portion 30 to be unfolded towards one side away from the handle body 20.

In any of the above solutions, preferably, when the handle body 20 is folded, the first end 51 slides forward to the front side of the first rotating shaft 90 and abuts against the front end of the first rotating portion 30, and the first end 51 drives the first rotating portion 30 to rotate toward the handle body 20 side, so that the first rotating portion 30 is folded.

In any of the above technical solutions, preferably, 6. the folding handle assembly according to claim 2, wherein the fixed portion 10 is provided with a slide groove 11, and the first end 51 of the second rotating portion 50 is inserted into the slide groove 11 and can move along the slide groove 11.

In any of the above technical solutions, preferably, the method further includes: the clamping device is arranged on the fixing portion 10, the clamping device 70 can be clamped with the handle main body 20 to enable the handle main body 20 to be folded or unfolded, and when the handle main body 20 is in the folded state, after the clamping device 70 and the handle main body 20 are unlocked, the second elastic piece can drive the handle main body 20 to be unfolded.

In any of the above solutions, preferably, the latch device 70 includes: the clamping bulge 71 is connected with the fixing part 10 in a sliding mode, and a first clamping structure and a second clamping structure matched with the clamping bulge are arranged on the handle body 20; third elastic component 72 is connected with protruding 71 of joint and fixed part 10, wherein, protruding 71 of joint can be with second joint structure joint to make the handle main part keep folding, joint arch 71 can slide to the direction of keeping away from the handle main part, third elastic component 72 deformation volume increase and joint arch 71 and second joint structure are relieved and are leaned on, the handle main part is rotated to the state of expanding by fold, protruding 71 of joint and first joint structure joint afterwards, make handle main part 10 keep in the state of expanding.

In the above technical solution, preferably, the fixing portion 10 is a U-shaped structure, the front end of the handle body 20 extends into the U-shaped structure and is rotatably connected with two inner side walls of the U-shaped structure, and the front end of the handle body 20 and the closed end of the U-shaped structure are arranged at an interval to form a gap for installing the latch device 70; the clamping protrusion 71 is slidably arranged in the gap, and two ends of the third elastic piece 72 are respectively connected with one end of the U-shaped structure which is closed and the clamping protrusion 71; the third elastic member 72 can drive the latch protrusion 71 to slide backwards, so that the latch protrusion 71 abuts against the handle body 20.

It should be noted that "front" in the present application refers to one of the forward direction and the reverse direction of the forward direction of the underwater propulsion device, and "rear" in the present application refers to the other of the forward direction and the reverse direction of the forward direction of the underwater propulsion device.

In one embodiment of the invention, "forward" refers to the forward direction of the underwater propulsor and "aft" refers to the reverse direction of the forward direction of the underwater propulsor.

In another embodiment of the invention, "forward" refers to the opposite direction of the forward direction of the underwater propeller and "aft" refers to the forward direction of the underwater propeller.

Embodiments of a second aspect of the invention provide an underwater propulsion device comprising a folding handle assembly as in any of the embodiments of the first aspect.

In the above embodiment, preferably, there are two folding handle assemblies, and the hall switches 60 of the two handle folding assemblies are simultaneously connected in series in the drive circuit of the underwater propulsion device.

In this scheme, when using, only two hall original papers switch on simultaneously and just can make down thrust unit's drive circuit work, can reduce the possibility of mistake touching, improve the security of using.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

The embodiment of the invention provides an underwater propelling device, wherein a shell of the underwater propelling device is provided with a folding handle component. The folding handle assemblies are two, and the hall switches 60 of the two folding handle assemblies are simultaneously connected in series in the drive circuit of the underwater propulsion device.

Specifically, bolt fixed connection is passed through with advancing device's casing under water to fixed part 10 of handle folding assembly, handle folding assembly's handle main part 20 rotates with fixed part 10 through first pivot 90 to be connected, the centre of handle main part 20 is equipped with the recess, first rotation portion 30 is located in the recess and is rotated the setting outside first pivot 90, first elastic component (torsional spring) cover is established outside first pivot 90 and is leaned on with first rotation portion 30 and handle main part 20, first elastic component can drive first rotation portion 30 and rotate out from the recess.

The second rotating portion 50 is rotatably connected to the handle main body 20 by a second rotating shaft 55. The second rotating portion 50 has a first end 51 and a second end 52, the first end 51 is provided with a driving protrusion 53, the fixing portion 10 is provided with a sliding slot 11, and the first end 51 is embedded in the sliding slot 11 to realize the sliding connection between the first end 51 and the fixing portion 10. The chute 11 extends rearward from the position of the first rotation shaft 90. When the first end 51 rotates to the front side of the first rotating shaft 90, the driving protrusion 53 can be engaged with the front end of the first rotating part 30 to drive the first rotating part 30 to rotate.

The first rotating part 30 is provided with a permanent magnet 40, and the second end 52 of the second rotating part 50 is provided with a hall switch 60.

The first rotating shaft 90 is further sleeved with a second elastic member (for example, a torsion spring), two ends of the second elastic member respectively abut against the fixing portion 10 and the handle body 20, when the handle body 20 is folded, the handle body 20 is embedded into the fixing portion 10, and the second elastic member has a deformation amount. When the handle main body 20 is unfolded, the second elastic member is deformed again, and the second elastic member drives the handle main body 20 to rotate out from the fixing portion 10, so that the handle main body 20 is unfolded.

The fixing portion 10 is provided with a latch device 70, and the latch device 70 can be latched with the handle body 20 to keep the handle body 20 in a folded state or an unfolded state. Specifically, the clamping device 70 includes a clamping protrusion 71 and a third elastic member 72 (e.g., a compression spring), and the clamping protrusion 71 is slidably connected to the fixing portion 10; the third elastic member 72 is connected with the clamping protrusion 71 and the fixing portion 10, the clamping protrusion 71 moves towards one side of the handle body 20 under the action of the third elastic member 72 and abuts against the handle body 20, wherein a first clamping structure (for example, a groove) and a second clamping structure (for example, a groove) are arranged on the handle body 20, and after the handle body 20 is unfolded, the clamping protrusion 71 is clamped with the first clamping structure, so that the handle body 20 is kept at the unfolded position; after the handle body 20 is folded, the latch protrusion 71 is latched with the second latch structure, so that the handle body 20 is maintained at the folded position.

The handle body 20 is further provided with a child lock member 80, the handle body 20 is provided with a mounting groove, the child lock member 80 is arranged in the mounting groove, and the child lock member 80 comprises a cylinder 81 arranged in the mounting groove in a sliding manner, a shifting block 83 fixedly arranged on the cylinder 81 and extending out of the handle body 20, and a reset protrusion 82 fixedly arranged on the cylinder 81.

After the handle main body 20 is unfolded, the dial block 83 is dialed, the child lock member 80 can slide to a locking position and an unlocking position, when the child lock member 80 is located at the locking position and the first rotating part 30 is in the unfolding state, the cylinder 81 of the child lock member 80 abuts against the first rotating part 30 and limits the rotation of the first rotating part 30, so that the first rotating part 30 is locked and cannot rotate; after the toggle block 83 is toggled to slide the child lock member 80 to the unlocking position along the mounting groove, the column 81 is released from abutting against the first rotating portion 30, and the first rotating portion 30 can rotate freely.

When the handle main body 20 is switched from the folded state (as shown in fig. 4) to the unfolded state (as shown in fig. 1), referring to fig. 4, fig. 3, fig. 2 and fig. 1 in sequence, firstly, the clamping protrusion 71 slides to the side away from the handle main body 20, the clamping protrusion 71 is in contact clamping with the second clamping structure, and the handle main body 20 is unfolded under the action of the second elastic member. In the process that handle main part 20 expandes, the protruding back of forward rotation along spout 11 of sliding of second rotation portion 50, drive arch 53 and first rotation portion 30 are relieved and are leaned on, first rotation portion 30 rotates out to the expansion position in handle main part 20 under the effect of first elastic component, handle main part 20 expandes the back completely, the protruding rear end that slides to spout 11 that slides, third elastic component 72 resumes deformation and drives joint protruding 71 and the joint structure joint of first joint to make handle main part 20 keep the state of expanding.

When the underwater propulsion device is used, the two handle main bodies 20 are held by two hands, and after the first rotating parts 30 on the two handle main bodies 20 are simultaneously rotated to the folding position, the Hall switches 60 are simultaneously conducted under the action of the permanent magnets 40, and the driving circuit of the underwater propulsion device starts to work.

When a child plays, the child lock mechanism can be shifted to the locking position, so that the first rotating portion 30 is fixed, the child is prevented from being touched by mistake, the possibility that the child is accidentally injured can be prevented, and the use safety is improved.

When the handle body 20 is switched from the unfolded state to the folded state, referring to fig. 1, fig. 2, fig. 3 and fig. 4 in sequence, firstly, the clamping protrusion 71 slides to one side away from the handle body 20, the clamping protrusion 71 is released from clamping with the first clamping structure, the handle body 20 is manually pressed, the deformation of the third elastic member 72 is gradually increased, the sliding protrusion slides forwards along the sliding groove 11, and the second rotating portion 50 rotates relative to the handle body 20, if the child lock member 80 is located at the locked position before the handle body 20 is folded, in the rotating process of the second rotating portion 50, the second end 52 of the second rotating portion 50 abuts against the reset protrusion 82 and drives the child lock member 80 to slide to the unlocked position, so that the first rotating portion 30 can rotate relative to the handle body 20. Meanwhile, in the process that the sliding protrusion slides forwards along the sliding groove 11, the driving protrusion 53 abuts against the first rotating portion 30 and drives the first rotating portion 30 to rotate, and the deformation amount of the first elastic member gradually increases in the process that the first rotating portion 30 rotates. Until the handle main body 20 rotates to the folding position, the third elastic piece 72 recovers deformation and drives the clamping protrusion 71 to be clamped with the second clamping structure, at this time, the driving protrusion 53 pushes the first rotating portion 30 to rotate to the folding position, meanwhile, the hall switch 60 is located at the second preset position, and after the first rotating portion 30 rotates to the folding position, the magnetic field of the permanent magnet 40 at the position of the hall switch 60 is not enough to enable the hall switch 60 to be switched on.

In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A folding handle assembly for an underwater propulsion device, comprising:

a fixed part (10); and

a handle body (20) rotatably connected to the fixing portion (10);

a first rotating part (30) which is rotatably arranged on the handle main body (20), wherein after the handle main body (20) is unfolded, the first rotating part (30) can rotate relative to the handle main body (20) so as to conduct a driving circuit of the underwater propulsion device;

and the child lock member (80) is arranged on the handle main body (20) in a sliding mode, and after the handle main body (20) is unfolded, the child lock member (80) can slide to a position abutting against the first rotating part (30) and limit the rotation of the first rotating part (30).

2. The folding handle assembly of claim 1 further comprising:

a second rotating part (50), wherein a first end (51) of the second rotating part (50) is connected with the fixed part (10) in a sliding manner, a second end (52) of the second rotating part (50) is connected with the handle main body (20) in a rotating manner, a Hall switch (60) is arranged on the second end (52), and the Hall switch (60) is connected on a driving circuit of the underwater propelling device in series,

the permanent magnet (40) is arranged on the first rotating part (30), after the handle main body (20) is unfolded, the Hall switch (60) is located at a first preset position, and the first rotating part (30) can rotate so that the permanent magnet (40) is close to the Hall switch (60) and the Hall switch (60) is conducted; in the folding process of the handle main body (20), the second rotating part (50) rotates relative to the handle main body (20), and the Hall switch (60) moves to a second preset position so as to keep the Hall switch (60) in an off state when the first rotating part (30) rotates.

3. The folding handle assembly of claim 2,

the child lock member (80) is provided on the rear side of the first rotation portion (30), the second end (52) is located between the child lock member (80) and the first rotation portion (30),

after the child lock member (80) abuts against the first rotating portion (30), during the folding process of the handle main body (20), the second rotating portion (50) rotates relative to the handle main body (20), the second end (52) rotates backwards and pushes the child lock mechanism to move backwards, and the child lock member (80) is disengaged from the first rotating portion (30).

4. The folding handle assembly of claim 2 further comprising:

the first rotating shaft (90) is fixedly connected with the handle and rotatably connected with the fixing part (10), and the front end of the first rotating part (30) is rotatably connected with the first rotating shaft (90);

a first elastic element sleeved outside the first rotating shaft (90) and abutted against the handle body (20) and the first rotating part (30),

when the handle main body (20) is unfolded, the first elastic piece restores deformation and drives the first rotating part (30) to be unfolded to one side far away from the handle main body (20).

5. The folding handle assembly of claim 4,

when the handle main body (20) is folded, the first end (51) slides forwards to the front side of the first rotating shaft (90) and abuts against the front end of the first rotating part (30), and the first end (51) drives the first rotating part (30) to rotate towards the handle main body (20) side, so that the first rotating part (30) is folded.

6. The folding handle assembly of claim 2,

the fixed portion (10) is provided with a sliding groove (11), and the first end (51) of the second rotating portion (50) is embedded into the sliding groove (11) and can move along the sliding groove (11).

7. The folding handle assembly of any one of claims 1-6 further comprising:

the clamping device is arranged on the fixing part (10), the clamping device (70) can be clamped with the handle main body (20) so as to enable the handle main body (20) to be folded or unfolded,

when the handle main body (20) is in a folded state, the clamping device (70) and the handle main body (20) are unlocked, and the second elastic piece can drive the handle main body (20) to be unfolded.

8. The folding handle assembly of claim 7, wherein the snap-in device (70) comprises:

the clamping protrusion (71) is connected with the fixing part (10) in a sliding mode, and a first clamping structure and a second clamping structure matched with the clamping protrusion are arranged on the handle main body (20);

a third elastic piece (72) connected with the clamping bulge (71) and the fixing part (10),

wherein, joint arch (71) can with second joint structure joint, so that the handle main part keeps folding, joint arch (71) can be to keeping away from the direction of handle main part slides, third elastic component (72) deformation volume increase just joint arch (71) with second joint structure is relieved and is leaned on, the handle main part is rotated to the state of expanding by fold condition, subsequently joint arch (71) with first joint structure joint makes handle main part (10) keep expanding the state.

9. The folding handle assembly of claim 8,

the fixing part (10) is of a U-shaped structure, the front end of the handle main body (20) extends into the U-shaped structure and is rotatably connected with two inner side walls of the U-shaped structure, and the front end of the handle main body (20) and the closed end of the U-shaped structure are arranged at intervals to form a gap for mounting the clamping device (70); the clamping protrusion (71) is slidably arranged in the gap, and two ends of the third elastic piece (72) are respectively connected with one closed end of the U-shaped structure and the clamping protrusion (71); the third elastic piece (72) can drive the clamping protrusion (71) to slide backwards, so that the clamping protrusion (71) abuts against the handle main body (20).

10. An underwater propulsion device comprising a folding handle assembly as claimed in any one of claims 1 to 9.