Sucker structure

Abstract

The utility model discloses a suction cup structure which comprises a suction cup, a gland, an elastic reset assembly, a transmission rod, an operating piece and a split type connecting piece. The transmission rod penetrates through the gland, and the end, away from the suction cup, of the transmission rod is provided with an insertion part. The operating piece is arranged on the gland in a rotatable or turnover mode and is in axial limiting fit with the transmission rod through the connecting piece. One end of the connecting piece is clamped to the inserting part, the other end of the connecting piece is in linkage with the operating piece, the operating piece drives the connecting piece to move axially through rotation or turnover, the transmission rod is driven to lift the suction cup to generate negative pressure adsorption or release the adsorption state, and through collaborative design of the split connecting piece and the inserting part, a complex transmission structure of a traditional suction cup is simplified into a modular assembly. And the installation convenience, the operation efficiency and the long-term reliability are considered.

Description

TECHNICAL FIELD

[0001] The utility model relates to a sucking disc technical field, especially a sucking disc structure. BACKGROUND

[0002] The existing sucking disc structure usually adopts the integral type pull rod design, and the operating part (such as knob or pressing block) is directly connected with the pull rod, which leads to the complex installation and maintenance process. SUMMARY

[0003] The utility model discloses a sucking disc structure which overcomes the shortcomings and deficiencies of the prior art.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a sucking disc structure, including sucking disc, gland and elastic reset subassembly, still including transmission rod, operating part and connecting piece, transmission rod is connected with sucking disc and is set up with transmission rod and reaches the end that it is away from sucking disc is equipped with the plug -in part, operating part can rotatably or overturnably be arranged in the gland, and is connected with the connecting piece transmission, the connecting piece one end forms the axial limit cooperation with the plug -in part, and the other end is linked with operating part, operating part moves the connecting piece to the end that it is away from sucking disc through action drive, and drives transmission rod reciprocating motion to make sucking disc produce negative pressure adsorption or remove adsorption state.

[0005] As a preferred technical scheme of the utility model, the plug -in part is provided with the slot, and the connecting piece is the guide rod, the inner end of the guide rod is clamped in the slot, and the outer end is equipped with the pivot shaft that is linked with operating part.

[0006] As a preferred technical scheme of the utility model, the pivot shaft's axis is perpendicular to the axis of the guide rod and both are T-shaped connection.

[0007] As a preferred technical scheme of the utility model, the slot includes the conical hole, the first cylinder hole, the second cylinder hole from top to bottom, the diameter of the second cylinder hole is greater than the diameter of the first cylinder hole, and the inner end of the guide rod is shape matched with the inner wall of the conical hole.

[0008] As a preferred technical scheme of the utility model, the operating part is a rotating cover, which is rotationally connected to the outer end surface of the gland; the outer end surface of the gland is fixedly provided with a limiting ring, the end surface of the limiting ring is provided with a cam surface, the rotating path of the cam surface is provided with a first rotating position and a second rotating position; the pivot shaft of the connecting part is in sliding fit with the cam surface; the inner side of the rotating cover is provided with a clamping part, the pivot shaft is linked with the clamping part; when the rotating cover rotates, the clamping part drives the pivot shaft to slide along the cam surface, so that the pivot shaft is switched between the first rotating position and the second rotating position, and then drives the transmission rod to move axially.

[0009] As a preferred technical scheme of the utility model, one side of the clamping part is provided with a clamping groove, one end of the clamping groove is provided with a notch for embedding the pivot shaft, and the pivot shaft is limited in the inner end of the clamping groove.

[0010] As a preferred technical scheme of the utility model, the operating part is a rotating cover, which is rotationally connected to the outer end surface of the gland; the outer end surface of the gland is fixedly provided with a limiting ring, the end surface of the limiting ring is provided with a cam surface, the rotating path of the cam surface is provided with a first rotating position and a second rotating position; the pivot shaft of the connecting part is in sliding fit with the cam surface; the inner side of the rotating cover is provided with a clamping part, the pivot shaft is linked with the clamping part; when the rotating cover rotates, the clamping part drives the pivot shaft to slide along the cam surface, so that the pivot shaft is switched between the first rotating position and the second rotating position, and then drives the transmission rod to move axially.

[0011] As a preferred technical scheme of the utility model, one side of the clamping part is provided with a clamping groove, one end of the clamping groove is provided with a notch for embedding the pivot shaft, and the pivot shaft is limited in the inner end of the clamping groove.

[0012] As a preferred technical scheme of the utility model, the elastic reset component is a compression spring, which is sleeved on the transmission rod and limited between the suction cup and the gland at both ends.

[0013] As a preferred technical scheme of the utility model, the transmission rod is a block structure with a rectangular cross section, the upper end of the gland is provided with a through hole, the contour of the through hole is matched with the rectangular cross section of the transmission rod; the connecting part penetrates through the through hole and is connected with the plug-in part of the transmission rod, and the size of the through hole allows the transmission rod and the connecting part to move axially without interference.

[0014] Compared with the prior art, the beneficial effects of the utility model are that: through the one-way action of rotating the rotary cover or turning the knob, the adsorption and desorption switching can be completed, without continuous pressing, and the operation process is obviously simplified; and the split transmission design (insertion of the connecting piece and the transmission rod) supports quick disassembly and assembly, and facilitates maintenance and replacement of parts. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a structural schematic view of the utility model embodiment one;

[0016] Figure 2 is an explosion view of the utility model embodiment one;

[0017] Figure 3 is a sectional view of the utility model embodiment one;

[0018] Figure 4 is a structural schematic view of the gland in the utility model embodiment one;

[0019] Figure 5 is a structural schematic view of the connecting piece in the utility model embodiment one;

[0020] Figure 6 is a structural schematic view of the operating piece in the utility model embodiment one

[0021] Figure 7 is a structural schematic view of the utility model embodiment two;

[0022] Figure 8 is a sectional view of the utility model embodiment two.

[0023] Reference signs: 1, suction cup;2, gland;3, elastic reset assembly;4, transmission rod;5, operating piece;6, connecting piece;7, insertion part;8, insertion slot;9, guide rod;10, pivot shaft;11, conical hole;12, first cylindrical hole;13, second cylindrical hole;14, limiting ring;15, cam surface;16, clamping part;17, clamping groove;18, notch;19, driving part;20, through hole. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative labor all belong to the protection scope of the utility model.

[0025] The specific embodiments of the utility model are described below in combination with the drawings. EMBODIMENT

[0026] As Figures 1 to 6 shown in a kind of sucking disc structure, including sucking disc 1, gland 2 and elastic reset component 3, still including transmission rod 4, operating member 5 and connecting piece 6;Transmission rod 4 is connected with sucking disc 1 (integrally formed or thread connection or clamping or plug-in and so on, preferably integrally formed) and transmission rod 4 is set through gland 2, and the end portion away from sucking disc 1 of transmission rod 4 is equipped with plug-in part 7;Operating member 5 is rotatably or reversibly set in gland 2, and is transmissionally connected with connecting piece 6;Connecting piece 6 one end and plug-in part 7 form axial limit cooperation, the other end is linked with operating member 5;Operating member 5 drives connecting piece 6 axial movement by action, drives transmission rod 4 reciprocating motion along axis (also can be appropriately offset relative to axis) to make sucking disc 1 produce negative pressure adsorption or remove adsorption state.

[0027] By rotating the cap or the one-way action of the knob, the adsorption and desorption switching can be completed, without the need for continuous pressing, significantly simplifying the operation process; And the split transmission design (connecting piece 6 and transmission rod 4 plug-in) supports quick disassembly, facilitating maintenance and replacement of parts.

[0028] Plug-in part 7 is provided with a slot 8, and the connecting piece 6 is a guide rod 9;The inner end of the guide rod 9 is clamped in the slot 8, and the outer end is provided with a pivot shaft 10 linked with the operating member 5, the axis of the pivot shaft 10 is perpendicular to the axis of the guide rod 9 and the two are T-shaped connection, in the embodiment, the guide rod 9 and the plug-in part 7 can also be fixed by screw connection or pin shaft.

[0029] The slot 8 includes a conical hole 11, a first cylindrical hole 12 and a second cylindrical hole 13 arranged from top to bottom, the diameter of the second cylindrical hole 13 is greater than that of the first cylindrical hole 12, the inner end of the guide rod 9 is matched with the inner wall of the conical hole 11, and the layered slot 8 (conical hole 11 guiding alignment, first / second cylindrical hole 13 limiting) of the plug-in part 7 enhances the cooperation stability of the connecting piece 6 and the transmission rod 4, and reduces the risk of loosening.

[0030] The operating member 5 is a cap, which is rotatably connected to the outer end surface of the gland 2;The outer end surface of the gland 2 is fixedly provided with a limiting ring 14, and the end surface of the limiting ring 14 is provided with a cam surface 15, and the rotating path of the cam surface 15 is provided with a first rotating position and a second rotating position;The pivot shaft 10 of the connecting piece 6 is in sliding cooperation with the cam surface 15;The inner side of the cap is provided with a clamping part 16, and the pivot shaft 10 is linked with the clamping part 16;When the cap rotates, the clamping part 16 drives the pivot shaft 10 to slide along the cam surface 15, so that the pivot shaft 10 switches between the first rotating position and the second rotating position, thereby driving the transmission rod 4 to move axially, and in the cap driving, the cam surface 15 of the limiting ring 14 is in sliding cooperation with the pivot shaft 10, and the adsorption is locked by switching the first and second rotating positions, to avoid desorption caused by accidental touch.

[0031] The clamping portion 16 is provided with a clamping groove 17, and one end of the clamping groove 17 is provided with a notch 18 for embedding the pivot shaft 10, and the pivot shaft 10 is limited in the clamping groove 17.

[0032] The elastic reset assembly 3 is a compression spring, which is sleeved on the transmission rod 4, and the two ends are respectively limited between the suction cup 1 and the gland 2.

[0033] The transmission rod 4 is a block structure with a rectangular cross section (the transmission rod 4 can also be cylindrical or shaped), and the upper end of the gland 2 is provided with a through hole 20, and the contour of the through hole 20 is matched with the rectangular cross section of the transmission rod 4; the connecting piece 6 penetrates the through hole 20 and is connected with the plug-in part 7 of the transmission rod 4, and the size of the through hole 20 allows the transmission rod 4 and the connecting piece 6 to move axially without interference, and the transmission rod 4 adopts a rectangular block structure, which is matched with the contour of the through hole 20 of the gland 2, effectively limiting the circumferential rotation, avoiding the deviation caused by the torque, and ensuring the accuracy of the axial movement.

[0034] The rotating working principle is as follows: when the operating part 5 is a rotating cover, the user rotates the rotating cover to drive the clamping portion 16 inside the rotating cover to rotate synchronously. The clamping portion 16 is linked with the pivot shaft 10 of the connecting piece 6, which forces the pivot shaft 10 to slide along the cam surface 15 on the limiting ring 14 of the outer end surface of the gland 2. The rotating path of the cam surface 15 is provided with a first rotating position and a second rotating position: adsorption state: when the rotating cover is rotated to the first rotating position, the pivot shaft 10 is located at the high point of the cam surface 15, which drives the connecting piece 6 to move axially to the direction of the gland 2, the transmission rod 4 pulls up the suction cup 1, and the elastic reset assembly 3 generates negative pressure; desorption state: when the rotating cover is rotated to the second rotating position, the pivot shaft 10 slides to the low point of the cam surface 15, the elastic reset assembly 3 releases the elastic force, and pushes the transmission rod 4 to reset. Embodiment

[0035] As shown in Figure 7 , 8 , the difference between the second embodiment and the first embodiment is the operating structure, and the rest of the structure is the same.

[0036] The operating part 5 is a knob, and the knob is provided with a first position and a second position on the overturning path; the pivot shaft 10 of the connecting piece 6 is hinged with the knob driving part 19, and when the knob is overturned, the driving part 19 pushes the guide rod 9 to move axially, which drives the transmission rod 4 to pull up the suction cup 1 to generate negative pressure adsorption.

[0037] The driving part 19 is provided with a clamping groove 17, one end of the clamping groove 17 is provided with a gap 18 for embedding the pivot shaft 10, and the pivot shaft 10 is limited to the inner end of the clamping groove 17; a first position and a second position are arranged on the overturning path of the driving part 19, when the driving part 19 is in the first position, the distance from the contact surface abutting against the gland 2 to the axis of the pivot shaft 10 is L1; when the driving part 19 is overturned to the second position, the distance from the contact surface to the axis of the pivot shaft 10 is L2, and L2>L1; when the driving part 19 is overturned from the first position to the second position, the contact surface pushes the connecting piece 6 to move axially away from the suction cup 1 with the distance increasing, and the elastic reset assembly 3 is compressed to generate negative pressure adsorption; when resetting, the elastic reset assembly 3 pushes the connecting piece 6 to move reversely, and the driving part 19 resets to the first position.

[0038] In the knob driving, the distance difference (L2>L1) between the contact surface and the pivot shaft 10 is designed to amplify the transmission displacement through the lever effect, so as to ensure that the adsorption force is sufficient, and the elastic assembly automatically rebounds when resetting, and the action is reliable.

[0039] The knob type working principle is as follows: when the operating part 5 is a knob, the user overturns the knob to make it rotate around the hinge shaft. The driving part 19 of the knob is provided with a clamping groove 17, and the pivot shaft 10 is limited to the inner end of the clamping groove 17. The distance from the contact surface abutting against the gland 2 to the axis of the hinge shaft changes with the overturning action: in the adsorption state, when the knob is overturned from the first position to the second position, the distance from the contact surface to the hinge shaft increases from L1 to L2 (L2>L1), the driving part 19 pushes the connecting piece 6 to move away from the suction cup 1, and the transmission rod 4 lifts the suction cup 1 to compress the elastic reset assembly 3. In the desorption state, after the knob is released, the elastic reset assembly 3 pushes the connecting piece 6 to move reversely, the distance of the contact surface returns to L1, and the suction cup 1 is released from adsorption.

[0040] The basic principle, main features and advantages of the utility model are shown and described above, and the person skilled in the art should understand that the utility model is not limited by the above embodiments, the above embodiments and the description in the specification are only preferred examples of the utility model, and are not used to limit the utility model, various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed, and the protection scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A suction cup structure comprising a suction cup (1), a gland (2) and a resilient return assembly (3), characterized in that: The transmission rod (4) is connected with the suction cup (1) and penetrates through the gland (2), and an insertion part (7) is arranged at the end away from the suction cup (1); the operating part (5) is rotatably or reversibly arranged on the gland (2) and is in transmission connection with the connecting part (6); one end of the connecting part (6) is in axial limiting connection with the insertion part (7), and the other end is in linkage with the operating part (5); the operating part (5) drives the connecting part (6) to move away from the suction cup (1) through action, and drives the transmission rod (4) to reciprocate to make the suction cup (1) generate negative pressure adsorption or release the adsorption state.

2. The suction cup structure according to claim 1, characterized in that: The insertion part (7) is provided with an insertion slot (8), and the connecting part (6) is a guide rod (9); the inner end of the guide rod (9) is clamped in the insertion slot (8), and the outer end is provided with a pivot shaft (10) linked with the operating part (5).

3. The suction cup structure of claim 2, wherein: The axis of the pivot shaft (10) is perpendicular to the axis of the guide rod (9) and they are in T-shaped connection.

4. The suction cup structure of claim 2, wherein: The insertion slot (8) comprises a conical hole (11), a first cylindrical hole (12) and a second cylindrical hole (13) arranged from top to bottom, the diameter of the second cylindrical hole (13) is larger than that of the first cylindrical hole (12), and the inner end of the guide rod (9) is matched with the inner wall of the conical hole (11).

5. The suction cup structure according to claim 2 or 3, characterized in that: The operating part (5) is a rotary cap rotatably connected to the outer end surface of the gland (2); the outer end surface of the gland (2) is fixedly provided with a limiting ring (14), the end surface of the limiting ring (14) is provided with a cam surface (15), the rotary path of the cam surface (15) is provided with a first rotary position and a second rotary position; the pivot shaft (10) of the connecting part (6) is in sliding connection with the cam surface (15); the inner side of the rotary cap is provided with a clamping part (16), the pivot shaft (10) is linked with the clamping part (16); when the rotary cap rotates, the clamping part (16) drives the pivot shaft (10) to slide along the cam surface (15), so that the pivot shaft (10) is switched between the first rotary position and the second rotary position, and then drives the transmission rod (4) to move axially.

6. The suction cup structure of claim 5, wherein: One side of the clamping part (16) is provided with a clamping groove (17), one end of the clamping groove (17) is provided with a notch (18) for embedding the pivot shaft (10), and the pivot shaft (10) is limited in the clamping groove (17).

7. The suction cup structure according to claim 2 or 3, characterized in that: The operating part (5) is a knob, the flip path of the knob is provided with a first position and a second position; the pivot shaft (10) of the connecting part (6) is hinged with the knob driving part (19), when the knob is flipped, the driving part (19) pushes the guide rod (9) to move axially, and drives the transmission rod (4) to lift the suction cup (1) to generate negative pressure adsorption.

8. The suction cup structure of claim 7, wherein: The driving part (19) is provided with a clamping groove (17) on one side, one end of the clamping groove (17) is provided with a notch (18) for embedding the pivot shaft (10), and the pivot shaft (10) is limited to the inner end of the clamping groove (17); the driving part (19) is provided with a first position and a second position on the overturning path, when the driving part (19) is in the first position, the distance from the contact surface abutting against the gland (2) to the axis of the pivot shaft (10) is L1; when the driving part (19) is overturned to the second position, the distance from the contact surface to the axis of the pivot shaft (10) is L2, and L2>L1; when the driving part (19) is overturned from the first position to the second position, the contact surface pushes the connecting piece (6) to move axially away from the suction cup (1) with the distance increasing, and the elastic reset assembly (3) is compressed to generate negative pressure adsorption; when resetting, the elastic reset assembly (3) pushes the connecting piece (6) to move reversely, and the driving part (19) resets to the first position.

9. The suction cup structure of claim 1, wherein: The elastic reset assembly (3) is a compression spring, which is sleeved outside the transmission rod (4), and both ends are limited between the suction cup (1) and the gland (2) respectively.

10. The suction cup structure of claim 1, wherein: The transmission rod (4) is a block structure with a rectangular cross section, the upper end of the gland (2) is provided with a through hole (20), the contour of the through hole (20) is matched with the rectangular cross section of the transmission rod (4); the connecting piece (6) penetrates through the through hole (20) and is connected with the plug-in part (7) of the transmission rod (4), and the size of the through hole (20) allows the transmission rod (4) and the connecting piece (6) to move axially without interference.

Images