CN201232701Y

CN201232701Y - Suction cup

Info

Publication number: CN201232701Y
Application number: CNU2008201278372U
Authority: CN
Inventors: 肖爱芳; 张无名
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2008-07-16
Filing date: 2008-07-16
Publication date: 2009-05-06
Anticipated expiration: 2018-07-16

Abstract

The utility model relates to the field of adsorption plant and provides a cupule. The cupule in the utility model includes a handle, a shell, a rubber chassis and a tension rod fixedly connected with the rubber chassis; wherein, the bottom surface of the rubber chassis is provided with at least one annular rubber bar used for filling the irregularity on the surface of an adsorbent, thus leading the bottom surface of the rubber chassis and the surface of the adsorbent to be completely and tightly stuck. The cupule enhances the adsorbability of the cupule and the durability of the absorption by filling the irregularity on the surface of the adsorbent.

Description

Sucker

Technical field

The utility model relates to adsorbent equipment, more particularly, relates to a kind of sucker.

Background technique

Sucker is widely used in daily life, as the external camera seat of computer, the hook on the wall etc.Its principle is to utilize atmospheric pressure, in concrete the application, is to increase the seal space that forms between sucker inside and the adsorbent by external force, forms the inside and outside draught head of sucker, thereby sucker is fixed on the adsorbent.

The present sucker that exists, the rubber chassis that is stretched, its bottom surface are the plane, when running into the adsorbent surface small rut and projection are arranged, often can not fully it be filled up, and have influenced the tightness of sucker and adsorbent surface applying; And the plastic casing bottom surface of sucker is the plane, and stretching space, rubber chassis is limited, so there is the not enough and not enough defective of absorption endurance of adsorption force in sucker.

Therefore need a kind of seal space bigger, can fill up the structure of adsorbent surface irregularity, increase the endurance of sucker adsorption force and absorption.

Summary of the invention

One of the purpose of this utility model is to provide a kind of sucker, is intended to solve the problem that adsorption force is not enough and absorption is lasting inadequately of sucker in the prior art.

In order to realize the utility model purpose, described sucker comprises: handle, and shell, the rubber chassis is provided with at least one ring-shaped rubber bar with the stretch of fixedlying connected with the rubber chassis, the bottom surface on wherein said rubber chassis.

In order to realize the model utility purpose better, described shell bottom surface is provided with at least one annular groove, and during stretching, described rubber chassis can be continued to the groove in-draw with after the bottom surface contacts.

The bottom surface on described rubber chassis comprises the rubber strip of at least one annular spread, when sucker contacts with the adsorbent surface, because the ductility of rubber strip, can fill up the uneven of adsorbent surface, for example, fill groove, the pit on adsorbent surface, contain adsorbent surface salient point or projection.

As from the foregoing, the utility model is in the process of stretching rubber chassis and adsorbent seal space, difference with the prior art is by the bottom surface that groove and rubber chassis are set at outer casing bottom rubber strip to be set, increased the seal space between rubber chassis and the adsorbent, fill up pit, groove and the projection on adsorbent surface, thereby strengthened the adsorption force of sucker and the endurance of absorption.

Description of drawings

Fig. 1 is the structural representation of sucker among the embodiment of the present utility model;

Fig. 2 is the structural representation of handle among the embodiment of the present utility model;

Fig. 3 is the assembling schematic representation of handle and shell among the embodiment of the present utility model;

Fig. 4 is the A portion sectional view of shell among the embodiment of the present utility model;

Fig. 5 is the B portion sectional view on rubber chassis among the embodiment of the present utility model.

Embodiment

In order to make purpose of the present invention, technological scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.

The utility model has been filled up the uneven of adsorbent surface by rubber strip being set at the rubber undersurface of bottom disc and in the shell bottom surface groove being set, and has increased the seal space of sucker inside, thereby has strengthened the adsorption force of sucker and the endurance of absorption.

Fig. 1 shows the structure of sucker among the embodiment of the present utility model, and this sucker comprises handle 1, shell 2, rubber chassis 4 and the stretch 3 of fixedlying connected with the rubber chassis.Wherein:

(1) handle 1 links to each other with stretch 3, is platy structure, is used to bear user's the application of force, promotes rubber chassis 4 thereby drive stretch 3.Its concrete structure will elaborate in the embodiment among aftermentioned Fig. 2, Fig. 3.

(2) end face of shell 2 contacts with handle 1, and the bottom surface contacts with rubber chassis 4, is inverted T shape, and its concrete structure will elaborate in the embodiment of aftermentioned Fig. 4.

(3) stretch 3 is fixedlyed connected with rubber chassis 4, and passes shell 2 and be connected with handle 1.

(4) rubber chassis 4 is fixedly linked with stretch 3, is disk-like structure, is used for contacting with the adsorbent surface, and forms stretchable seal space.The bottom surface on rubber chassis 4 is provided with at least one ring-shaped rubber bar 42, and its cross section is square, is used to fill up the uneven of adsorbent surface.Its concrete structure will elaborate in the embodiment of aftermentioned Fig. 5.

Fig. 2 shows the structure of handle 1 among the embodiment of the present utility model, and handle 1 comprises shank 11 and extension section 12, and wherein, shank 11 is a platy structure, is used to bear user's the application of force; Extension section 12 is a disc cam structure, and the centre is provided with longitudinal opening, and openings of sizes is consistent with the locating face size of stretch 3, is used for spacing stretch 3, in the two side of opening, is provided with through hole 121, is used to connect stretch 3.

Fig. 3 shows the assembly relation of handle among the embodiment of the present utility model 1 and shell 2, when not stretching, the extension section 12 of handle 1, profile near the cam base circle end contacts with the end face of shell 2, when shank 11 is subjected to external force F, cam moves along the end face of profile line at shell 2, upwards promotes rubber chassis 4 thereby drive stretch 3.

Fig. 4 shows the structure of shell 2 among the embodiment of the present utility model, shell 2 is a plastic casing of falling the T-shape, comprise body 21 and bottom 22, the bottom 22 of shell 2 is a disk-like structure, the bottom surface of shell 2 contacts with rubber chassis 4 during assembling, and this bottom surface is provided with at least one annular groove 221, upwards promotes when stretch 3 drives rubber suction cups 4, can continue to groove 221 in-draws, thereby increase the seal space on rubber chassis and adsorbent surface.

Fig. 5 shows the structural representation of rubber suction cups 4 among embodiment of the utility model, the bottom surface on rubber chassis 4 is provided with at least one ring-shaped rubber bar 42, its cross section is square, width is 0.5～1mm, when there are small rut or projection in the adsorbent surface, because rubber strip 42 surface areas are little, easy deformation, so can fill up small rut or projection, thereby rubber undersurface of bottom disc and adsorbent surface are fitted tightly.

Cross-sectional width value about rubber strip 42 has multiple scheme: in one embodiment, the width of rubber strip is 0.5mm; In another embodiment, the width of rubber strip is 0.8mm; In another embodiment, the width of rubber strip is 1mm.At different adsorbents, size, the distribution of pit that it is surperficial or projection differ, and therefore can set this width value as the case may be, and above-mentioned example is not in order to limit protection domain of the present utility model.

The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.

Claims

1, a kind of sucker, comprise handle, shell, rubber chassis and the stretch of fixedlying connected with the rubber chassis, the bottom surface on described rubber chassis contacts with the adsorbent surface, described stretch is passed shell and is connected with handle, it is characterized in that, the bottom surface on described rubber chassis is provided with at least one ring-shaped rubber bar that is used to fill up the adsorbent concave-convex surface, and its cross section is square.

2, sucker according to claim 1 is characterized in that, described rubber strip is that cross section is square projection.

3, sucker according to claim 2 is characterized in that, the width of described projection is: 0.5～1mm.

4, sucker according to claim 1 is characterized in that, the bottom surface of described shell is provided with at least one annular groove.

5, sucker according to claim 1 is characterized in that, described cover top portion center is provided with the hole, and the cross-sectional profile in described hole comprises at least one straightway.

6, sucker according to claim 1 is characterized in that, described handle comprises shank and extension section, and described extension section is a disc cam structure, links to each other with stretch, and the rubber chassis is used to stretch.