CN220646466U

CN220646466U - Rotary sucker device and sucker hook

Info

Publication number: CN220646466U
Application number: CN202322155560.1U
Authority: CN
Inventors: 范若辰
Original assignee: Ningbo Nuoshi Design Co ltd
Current assignee: Ningbo Nuoshi Design Co ltd
Priority date: 2023-08-10
Filing date: 2023-08-10
Publication date: 2024-03-22
Anticipated expiration: 2033-08-10

Abstract

The embodiment of the application discloses a rotary sucker device and a sucker hook, wherein the rotary sucker device comprises a sucker piece, a mounting seat, a bolt and a screwing piece, wherein the mounting seat is formed with a mounting cavity and a connecting hole; the sucker piece comprises a sucker body and a connecting rod, the sucker body covers the inner opening of the mounting cavity, and the connecting rod extends out of the mounting cavity through the connecting hole; the bolt is arranged at the front end of the connecting rod; the screwing piece comprises a core part, a connecting part and an outer side wall, wherein the outer side wall is annular and is arranged on the periphery of the core part, the connecting part is connected with the front ends of the core part and the outer side wall, and a clearance cavity is formed between the outer side wall and the core part; the core part is provided with a transmission cavity which is opened backwards, and the inner wall surface of the transmission cavity is provided with a transmission inclined surface which extends forwards in a spiral way around an axis vertical to the adsorption surface; the transmission cavity is sleeved at the front end of the connecting rod, and the transmission inclined plane is abutted to the rear side surface of the bolt. The rotary sucker device is not easy to cause unexpected adsorption failure, and the deformation of the screwing operation can not influence the rotation of the screwing piece.

Description

Rotary sucker device and sucker hook

Technical Field

The application relates to the technical field of household appliance fixing devices, in particular to a rotary sucker device and a sucker hook.

Background

The sucker device is widely applied in the aspect of fixing appliances, and the direct pressing type and the rotary pressing type are the most widely applied in the aspect of fixing household appliances at present, but the operation force required by the two types of sucker devices for generating a preset negative pressure cavity is relatively large, in other words, the direct pressing force or the rotary pressing force required for achieving a certain adsorption force is large, namely, the operation for achieving a preset bearing force is relatively laborious.

In order to achieve a larger bearing capacity in a relatively labor-saving manner, the prior art, such as CN201073208Y, is named as a Chinese patent publication of a flat locking type adsorption hook, provides a rotary sucker device, wherein a locking knob (4) can drive a locking disc (3) when rotating around an axis perpendicular to an adsorption surface, a spiral lifting inclined surface is formed on one side, away from the adsorption surface, of a sliding rail (3-2) of the locking disc (3), a connecting rod (1-2) penetrates through the hook (2) along the axis, the inner end of the connecting rod (1-2) is connected with an elastic sucker (1), the outer end of the connecting rod is connected with a fixing piece (5) in a pin shape, and the fixing piece (5) abuts against the inclined surface of the sliding rail (3-2), so that when the locking disc (3) rotates along with the locking knob (4), the sliding rail (3-2) is extruded, the fixing piece (5) can pull the connecting rod (1-2) outwards, and the elastic sucker (1) is driven to deform, and a negative pressure cavity is generated between the elastic sucker (1) and the adsorption surface, thereby completing the adsorption fixation.

However, the whole shape of the locking knob (4) in the patent document is similar to that of a butterfly-shaped screw cap, and although the tail end of a wing piece of the locking knob (4) is provided with a locking groove (4-4) matched with a locking protrusion (2-1) on a hook (2), the depth of the locking groove (4-4) is shallow in consideration of repeated screwing application scenes, and the transversely protruding part of the locking knob (4) is more, so that the locking knob is easy to be collided by foreign objects to cause misoperation, and further cause adsorption failure; and because of the existence of wearing and tearing, after multiple use, under the circumstances of touching by mistake, locking protruding (2-1) is more easy to deviate from locking groove (4-4), therefore adsorption failure also more easily takes place.

In addition, the root of the locking knob (4) of the patent document is arranged close to the rotary matching pair between the locking knob (4) and the hook (2), so that the deformation of the root of the wing is easily transmitted to the rotary matching pair, and the resistance to the screwing operation is larger.

Disclosure of Invention

The main objective of this application is to propose a rotatory sucking disc device, aims at solving current rotatory sucking disc device and revolves and twist resistance big and take place the technical problem of absorption inefficacy easily under the mistake touching.

In order to achieve the above purpose, the rotary sucker device provided by the application comprises a sucker piece, a mounting seat, a bolt and a screwing piece, wherein,

the mounting seat is provided with a mounting cavity and a connecting hole communicated with the mounting cavity, and the mounting cavity is opened backwards;

the sucker piece comprises a sucker body and a connecting rod extending forwards from the middle of the sucker body, the sucker body covers the inner opening of the mounting cavity, and the connecting rod extends out of the mounting cavity through the connecting hole;

the bolt is arranged at the front end of the connecting rod and protrudes out of the outer peripheral surface of the connecting rod;

the screwing piece comprises a core part, a connecting part and an outer side wall, wherein the outer side wall is annular and is arranged on the periphery of the core part, the connecting part is connected with the front ends of the core part and the outer side wall, and a clearance cavity is formed between the outer side wall and the core part; the core part is provided with a transmission cavity which is opened backwards, and the inner wall surface of the transmission cavity is provided with a transmission inclined surface which extends forwards in a spiral manner around an axis vertical to the adsorption surface; the transmission cavity is sleeved at the front end of the connecting rod, and the transmission inclined plane is abutted to the rear side face of the bolt.

Preferably, a first annular flange is arranged on the front side surface of the mounting seat at the periphery of the connecting hole, and the inner wall surface, far away from the outer side wall, of the avoidance cavity is in rotatable fit with the first annular flange around the axis.

Preferably, a second annular flange is arranged on the front side surface of the mounting seat between the connecting hole and the first annular flange; the one side of the core facing the sucker body is provided with a third annular flange sleeved on the second annular flange, and the third annular flange is in rotatable fit with the second annular flange around the axis.

Preferably, the screwing piece comprises a rotary seat and a rotary cap which are arranged in a split mode, and the transmission cavity and the third annular flange are formed on the rotary seat; the clearance cavity is formed on the rotating cap.

Preferably, the screwing piece comprises a rotary seat and a rotary cap which are arranged in a split mode, the transmission cavity is through-shaped along the front and back, and the transmission cavity and the rotary cap are formed on the rotary seat; the avoidance cavity is formed on the rotary cap; the rotary cap is provided with a rotary limiting groove extending around the axis;

the front side surface of the mounting seat is provided with a rotation limiting column extending forwards; the rotation limiting column penetrates through the rotation limiting groove, and the rotation limiting column and the rotation limiting groove are in sliding fit around the axis;

the rotary sucker device further comprises a decorative cover, the decorative cover covers the front side face of the transmission cavity to be open, and the inner side face of the decorative cover is provided with a connecting pin connected with the rotary limiting column.

Preferably, the rotation limiting column is hollow and cylindrical, and the connecting pin is inserted into the inner cavity of the rotation limiting column.

Preferably, the rotary cap further comprises a first inner side wall, a rear end wall and a second inner side wall, wherein the first inner side wall extends backwards from the connecting part and forms the avoidance cavity with the outer side wall in a surrounding manner; the rear end wall extends from the rear end of the first inner side wall to the central axis to form a rotation limiting groove, and the rotation limiting groove is formed in the rear end wall; the second inner side wall extends forwards from the inner edge of the rear end wall, and is sleeved on the periphery of the rotating seat along the axial direction.

Preferably, the inner peripheral surface of the second inner side wall is provided with a key groove extending along the front-rear direction, and the outer peripheral surface of the rotating seat is provided with a convex key matched with the key groove.

Preferably, an annular concave portion is arranged at the joint of the second inner side wall and the connecting portion, the decorative cover comprises a cover plate and a supporting wall extending backwards from the edge of the cover plate, the supporting wall is embedded in the annular concave portion and is abutted to a step surface, which is arranged forwards, of the annular concave portion, and the outer side surface of the cover plate is flush with the connecting portion.

The application also provides a sucker hook, which comprises a rotary sucker device and a hook, wherein the rotary sucker device is the rotary sucker device; the hook comprises a connecting arm extending downwards from the mounting seat and a hook body extending forwards from the lower end of the connecting arm.

According to the rotary sucker device, the annular outer side wall is arranged for gripping, so that the friction force of the outer peripheral surface of the outer side wall is utilized when screwing operation is carried out, and the rotation of a screwing piece is not easy to cause due to touch of an external object, so that unexpected failure of the adsorption effect is avoided; and, because the space is formed between lateral wall and the core, consequently when taking place radially inwards to warp along lateral wall radial direction's gripping power, this kind of deformation is released in space department, and can not transmit to the rotation cooperation pair of screwing up between piece and the mount pad to can not additionally increase the frictional force of screwing up between piece and the mount pad, and then make screwing up the operation more smooth. It can be understood that the bolt is gradually lifted by the transmission inclined plane when the screwing operation is performed, so that the operation force for forming the required negative pressure cavity is relatively small, namely the effects of labor saving and strong adsorption force are achieved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of an embodiment of a suction cup hook of the present utility model, wherein the hook body of the hook is omitted;

FIG. 2 is a schematic view of an exploded view of the suction cup hook of FIG. 1;

FIG. 3 is a schematic view of an exploded view of the suction cup hook of FIG. 1 at another angle;

FIG. 4 is a schematic view of an exploded view of the suction cup hook of FIG. 1 at a further angle;

FIG. 5 is a schematic view of the suction cup hook of FIG. 1 in a front view;

FIG. 6 is a schematic cross-sectional view of the structure of FIG. 5 along the line VI-VI;

fig. 7 is a schematic view of the partial cross-sectional structure taken along line VII-VII in fig. 5, wherein the sectioned components include only the decorative cover, the swivel cap and the mounting socket.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name	Reference numerals	Name of the name
						100	Sucker hook	40	Screw-on piece	52	A first inner side wall
200	Rotary sucker device	41	Core part	53	Rear end wall
						10	Suction disc member	42	Space avoiding cavity	54	A second inner side wall
11	Sucker body	43	Rotary seat	55	Key groove
						12	Connecting rod	44	Transmission cavity	56	Annular recess
20	Mounting base	45	Transmission inclined plane	57	Decorative cover
						21	Mounting cavity	46	Third annular flange	58	Connecting pin
22	Connecting hole	47	Convex key	59	Cover plate
						23	A first annular flange	48	Rotary cap	60	Supporting wall
24	A second annular flange	49	Connecting part	70	Connecting arm
						25	Rotary limit column	50	Outer side wall
30	Bolt	51	Rotary limiting groove

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

Referring to fig. 1, 2 and 5 to 7, in one embodiment, the rotary suction cup device 200 proposed in the present application includes a suction cup member 10, a mounting base 20, a latch 30, a screw member 40, wherein,

the mounting seat 20 is provided with a mounting cavity 21 and a connecting hole 22 communicated with the mounting cavity 21, and the mounting cavity 21 is opened backwards;

the suction disc member 10 comprises a suction disc body 11 and a connecting rod 12 extending forwards from the middle part of the suction disc body 11, wherein the suction disc body 11 covers the inner opening of the mounting cavity 21, and the connecting rod 12 extends out of the mounting cavity 21 through a connecting hole 22;

the bolt 30 is mounted at the front end of the connecting rod 12 and protrudes out of the outer circumferential surface of the connecting rod 12;

the screwing piece 40 comprises a core 41, a connecting part 49 and an outer side wall 50, wherein the outer side wall 50 is annular and is arranged on the periphery of the core 41, the connecting part 49 is connected with the front ends of the core 41 and the outer side wall 50, and a clearance cavity 42 is formed between the outer side wall 50 and the core 41; the core 41 is provided with a transmission cavity 44 which is opened backwards, and the inner wall surface of the transmission cavity 44 is provided with a transmission inclined surface 45 which extends forwards in a spiral manner around an axis vertical to the adsorption surface; the transmission cavity 44 is sleeved at the front end of the connecting rod 12, and the transmission inclined surface 45 is abutted against the rear side surface of the bolt 30.

In this embodiment, the suction disc 10 may have an existing structure, for example, the suction disc body 11 may be made of silica gel, rubber, or other materials; the connecting rod 12 is made of plastic. The entirety of the mouthpiece 10 may be formed by two-shot molding. The mounting block 20 is used to provide a fixing and supporting function for the components, and is typically an injection molded part. To achieve better structural strength with a smaller outer diameter, the latch 30 is typically made of steel, such as stainless steel. The screw 40 may be a single piece or may be a plurality of separate pieces assembled together. From a smooth point of view, the driving ramp 45 is preferably a helicoidal surface; however, the transmission bevel 45 may be a planar bevel from a substantially similar function.

In order to facilitate desorption, a compression spring can be sleeved on the connecting rod 12 and arranged between the mounting seat 20 and the sucker body 11; it will be appreciated that since the compression spring is always in compression, the compression spring has a tendency to urge the chuck body 11 rearwardly away from the mounting base 20, which is transmitted through the connecting rod 12 to bring the latch 30 against the drive ramp 45.

According to the rotary sucker device 200, the annular outer side wall 50 is arranged for gripping, so that the friction force of the outer peripheral surface of the outer side wall 50 is utilized when the screwing operation is carried out, and the rotation of the screwing piece 40 is not easy to be caused by the touch of an external object, so that the unexpected failure of the adsorption effect is avoided; moreover, since the space-avoiding cavity 42 is formed between the outer sidewall 50 and the core, when the outer sidewall 50 is deformed radially inward by the grasping force in the radial direction of the outer sidewall 50, the deformation is released at the space-avoiding cavity 42 without being transmitted to the pair of rotational engagement between the screw 40 and the mount 20, so that the frictional force between the screw 40 and the mount 20 is not additionally increased, and the screwing operation is further made smoother. It will be appreciated that referring to fig. 7, since the latch 30 is gradually lifted by the driving ramp 45 when the clockwise (as indicated by arrow T in the drawing) screwing operation is performed, the operation force for forming the required negative pressure chamber is relatively small, i.e., the effect of saving labor and having strong adsorption force is achieved.

Further, referring to fig. 2 and 3 together, in an embodiment, in order to prevent the rotation of the screwing member 40 from deviating from a preset position to ensure that the screwing member 40 rotates more smoothly, a front side surface of the mounting base 20 is provided with a first annular flange 23 at an outer periphery of the connecting hole 22, and an inner wall surface of the avoidance cavity 42 away from the outer sidewall 50 is rotatably matched with the first annular flange 23 around an axis.

Further, the front side of the mount 20 is provided with a second annular flange 24 between the connection hole 22 and the first annular flange 23; the side of the core 41 facing the sucker body 11 is provided with a third annular flange 46 sleeved on the second annular flange 24, and the third annular flange 46 is rotatably matched with the second annular flange 24 around the axis.

In the present embodiment, the rear end of the core 41 is rotatably fitted around the axis between the second annular flange 24 and the first annular flange 23, so that a better stopper effect can be obtained and the rotation of the screw 40 can be made smoother.

Further, the screwing piece 40 comprises a rotating seat 43 and a rotating cap 48 which are arranged in a separated mode, and a transmission cavity 44 and a third annular flange 46 are formed on the rotating seat 43; the clearance cavity 42 is formed on the rotating cap 48.

In this embodiment, the transmission cavity 44 and the avoidance cavity 42 have relatively complex structures, so the manufacturing difficulty can be reduced by separately arranging the screwing piece 40; in addition, by assembling the swivel base 43 and then assembling the swivel cap 48, the swivel base 43 can be exposed to a greater extent, thereby facilitating the assembly of the swivel base 43 itself and the engagement of the latch 30 with the transmission bevel 45.

Further, the screwing piece 40 comprises a rotating seat 43 and a rotating cap 48 which are arranged in a split manner, a transmission cavity 44 is communicated in the front-back direction, and the transmission cavity 44 and the rotating cap 48 are formed on the rotating seat 43; the avoidance cavity 42 is formed on the rotating cap 48; the rotary cap 48 is provided with a rotary limiting groove 51 extending around the axis;

the front side surface of the mounting seat 20 is provided with a rotation limiting column 25 extending forwards; the rotation limiting column 25 penetrates through the rotation limiting groove 51, and the rotation limiting column 25 and the rotation limiting groove 51 are in sliding fit around the axis;

the rotary chuck device 200 further comprises a decorative cover 57, the decorative cover 57 covers the front side opening of the transmission cavity 44, and the inner side surface of the decorative cover 57 is provided with a connecting pin 58 connected with the rotary limiting column 25.

In this embodiment, the manufacturing difficulty can be reduced by separately arranging the screwing member 40, and the assembly of the rotating seat 43 and the plug 30 is more convenient; by passing the rotation limiting post 25 through the rotation limiting groove 51 and connecting with the connecting pin 58, not only is the rotation of the rotation cap 48 smoother, but also the decoration cover 57 is fixed together, so that the decoration cover 57 is kept relatively fixed, thereby forming a better external appearance effect, for example, if the brand information is printed on the outer side surface of the decoration cover 57, the brand information can be kept in a constant position during the rotation of the screw 40.

Further, in order to facilitate the connection of the decorative cover 57, the rotation limiting post 25 is hollow and tubular, and the connecting pin 58 is inserted into the inner cavity of the rotation limiting post 25. In this way, the fitting of the decorative cover 57 requires only the pressing operation from the front to the back.

Further, the rotary cap 48 further includes a first inner sidewall 52, a rear end wall 53, and a second inner sidewall 54, where the first inner sidewall 52 extends rearward from the connecting portion 49 and encloses with the outer sidewall 50 to form the space-avoiding cavity 42; the rear end wall 53 extends from the rear end of the first inner side wall 52 toward the central axis, and the rotation limiting groove 51 is formed in the rear end wall 53; the second inner sidewall 54 extends forward from the inner edge of the rear end wall 53, and the second inner sidewall 54 is axially sleeved on the periphery of the rotating seat 43.

In this embodiment, the first inner sidewall 52, the rear end wall 53 and the second inner sidewall 54 are disposed on the rotary cap 48, so that the rotary cap 48 can be rotatably matched with the mounting base 20 through a thin-wall structure, and the desired avoidance cavity 42 is formed, so that the rotary cap 48 is more suitable for injection molding.

Further, the second inner wall 54 has a key groove 55 extending in the front-rear direction on the inner peripheral surface thereof, and the rotary seat 43 has a protruding key 47 fitted in the key groove 55 on the outer peripheral surface thereof.

In this embodiment, the rotating seat 43 can be inserted into the inner cavity of the rotating cap 48 through the cooperation of the convex key 47 and the key slot 55, so as to form a stable transmission structure around the axis.

Further, an annular recess 56 is provided at the connection between the second inner sidewall 54 and the connection portion 49, the decorative cover 57 includes a cover plate 59 and a supporting wall 60 extending backward from the edge of the cover plate 59, the supporting wall 60 is embedded in the annular recess 56, the supporting wall 60 abuts against a step surface of the annular recess 56, and an outer side surface of the cover plate 59 is flush with the connection portion 49.

In this embodiment, the outer side surface of the cover plate 59 is flush with the connecting portion 49, so that the rotary chuck device 200 forms a more compact shape, and the supporting wall 60 can partially reinforce the decorative cover 57 to avoid twisting of the decorative cover 57, and can axially locate by abutting against the step surface of the annular recess 56, so that the assembling position of the decorative cover 57 is more accurate.

Referring to fig. 1, 5 to 7, the present application further provides a suction cup hook 100, including a rotary suction cup device 200 and a hook, wherein the rotary suction cup device 200 is the rotary suction cup device 200 as above; the hanger includes a connection arm 70 extending downward from the mount 20 and a hook body extending forward from a lower end of the connection arm 70.

In this embodiment, the connecting arm 70 of the hook and the mounting base 20 may be integrally or separately provided, so as to facilitate molding and reduce assembly steps, and the connecting arm 70 of the hook and the mounting base 20 are integrally provided. To facilitate the engagement of the connecting arm 70 with the different hooks, the connecting arm 70 is preferably removably connected to the hooks. The specific structure of the rotary sucker device 200 refers to the above embodiment, and since the sucker hook 100 adopts all the technical solutions of all the embodiments, the rotary sucker device also has all the beneficial effects brought by the technical solutions of the embodiments, and will not be described in detail herein.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting thereof; although the present application has been described in detail with reference to the foregoing embodiments, one of ordinary skill in the art will appreciate that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not drive the essence of the corresponding technical solutions to depart from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A rotary sucker device is characterized by comprising a sucker piece, a mounting seat, a bolt and a screwing piece, wherein,

2. The rotary suction cup device according to claim 1, wherein a first annular flange is provided on the front side surface of the mounting seat at the periphery of the connection hole, and an inner wall surface of the clearance cavity away from the outer side wall is rotatably fitted with the first annular flange about the axis.

3. The rotary suction cup device according to claim 2, wherein the front side of the mounting base is provided with a second annular flange between the connection hole and the first annular flange; the one side of the core facing the sucker body is provided with a third annular flange sleeved on the second annular flange, and the third annular flange is in rotatable fit with the second annular flange around the axis.

4. A rotary chuck device as in claim 3, wherein said screw member comprises a separately disposed swivel base and swivel cap, said drive chamber and third annular flange being formed on said swivel base; the clearance cavity is formed on the rotating cap.

5. The rotating chuck device as recited in claim 1, wherein,

the screwing piece comprises a rotary seat and a rotary cap which are arranged in a split mode, the transmission cavity is through-shaped along the front and back, and the transmission cavity and the rotary cap are formed on the rotary seat; the avoidance cavity is formed on the rotary cap; the rotary cap is provided with a rotary limiting groove extending around the axis;

6. The rotary sucker device according to claim 5, wherein the rotary limiting column is hollow and cylindrical, and the connecting pin is inserted into the inner cavity of the rotary limiting column.

7. The swivel chuck assembly of claim 5 or 6 wherein said swivel cap further comprises a first inner side wall, a rear end wall and a second inner side wall, said first inner side wall extending rearwardly from said connection section and circumscribing said outer side wall to form said clearance cavity; the rear end wall extends from the rear end of the first inner side wall to the central axis to form a rotation limiting groove, and the rotation limiting groove is formed in the rear end wall; the second inner side wall extends forwards from the inner edge of the rear end wall, and is sleeved on the periphery of the rotating seat along the axial direction.

8. The rotary chuck device as set forth in claim 7, wherein an inner circumferential surface of said second inner sidewall is provided with a key groove extending in a front-rear direction, and an outer circumferential surface of said rotary seat is provided with a male key fitted with said key groove.

9. The rotary chuck device according to claim 7, wherein the connection between the second inner side wall and the connection portion is provided with an annular recess, the decorative cover comprises a cover plate and a support wall extending rearward from an edge of the cover plate, the support wall is embedded in the annular recess, the support wall abuts against a forwardly arranged step surface of the annular recess, and an outer side surface of the cover plate is flush with the connection portion.

10. A suction cup hook comprising a rotary suction cup device and a hook, wherein the rotary suction cup device is as claimed in any one of claims 1 to 9; the hook comprises a connecting arm extending downwards from the mounting seat and a hook body extending forwards from the lower end of the connecting arm.