CN108974610A - A kind of drawing type bottle cap - Google Patents

Abstract

The present invention relates to a kind of drawing type bottle caps, including main cover and La Gai, the both ends of main cover are respectively connecting pin and capping end, connecting pin with bottle body for connecting, end is covered equipped with liquid outlet in a ring, the both ends for drawing lid are respectively open end and sealed end, lid is drawn to be set in main cover, and it can be axially moved relative to main cover, the opening and closing of liquid outlet are realized in sealed end and the cooperation of capping end, draw the inner sidewall of lid circumferentially arranged with interior positioning convex ring, the lateral wall of main cover is circumferentially arranged with circular orientation groove, interior positioning convex ring is located in circular orientation groove, circular orientation groove is used to limit the movement travel for drawing lid, at least one annular convex rib is equipped in circular orientation groove, the height of annular convex rib is less than the depth of circular orientation groove.Compared with prior art, easy to use, at low cost, high reliablity of the invention, and good visual effect facilitate the class sense for promoting product.

Description

A pull-out bottle cap

technical field

The invention relates to a bottle cap, in particular to a pull-out bottle cap.

Background technique

At present, the bottle caps of shampoo, shower gel and other packaging bottles are widely used as push-type bottle caps. The principle is to set a push-type liquid suction mechanism (such as a liquid suction pump) on the bottle cap. Equally, the production cost of this bottle cap is higher. Another kind of bottle cap is composed of a bottle cap with a liquid hole and a cover plate hinged on the bottle cap. The cover plate is provided with a plug. Pour it out from the hole, close the flip cap when not in use, and plug the liquid hole. Although the cost of this bottle cap is relatively low, the reliability of the hinge joint is not good, and the visual experience is not good, so it is mostly used for low-end products. .

Contents of the invention

The object of the present invention is to provide a pull-out bottle cap in order to overcome the above-mentioned defects in the prior art.

The purpose of the present invention can be achieved through the following technical solutions:

A pull-out bottle cap, comprising a main cap and a pull cap, the two ends of the main cap are respectively a connecting end and a capping end, the connecting end is used to connect with the bottle body, and the capping end There is a ring-shaped liquid outlet. The two ends of the pull cover are the open end and the seal end respectively. The pull cover is set on the main cover and can move axially relative to the main cover. The seal end and the cover end cooperate to realize the discharge For the opening and closing of the liquid port, the inner side wall of the pull cover is provided with an inner positioning convex ring along the circumferential direction, and the outer side wall of the main cover is provided with an annular positioning groove along the circumferential direction, and the inner positioning convex ring is located in the annular positioning groove. The annular positioning groove is used to limit the movement stroke of the pull cover, and at least one annular rib is arranged in the annular positioning groove, and the height of the annular rib is smaller than the depth of the annular positioning groove.

Preferably, two annular ribs are arranged axially in the annular positioning groove.

Preferably, the inner side wall of the pull cover is axially provided with a strip-shaped pull cover anti-rotation protrusion, and the inner wall of the main cover is axially provided with a pull cover anti-rotation protrusion matching Pull cover anti-rotation limit slot.

Preferably, the end of the connecting end of the main cover is provided with a main cover anti-rotation limiting pin, which is used to cooperate with the main cover anti-rotation limiting groove formed by two protrusions arranged on the bottle body to prevent the main cover from rotating. turn.

Preferably, the inner side wall of the connecting end of the main cover is provided with locking threads for threaded connection with the bottle body. The side of the rotation limit pin facing the tightening direction of the main cover is provided with an inclined surface matching the inclined surface of the outer surface of the projection.

Preferably, the two protrusions constituting the anti-rotation limiting groove of the main cover are arranged one low and one high along the screwing direction of the main cover.

Preferably, the end of the capping end of the main cover is provided with a plug, and there is an annular gap between the outer wall of the plug and the inner wall of the main cover, and the annular gap forms the liquid outlet.

Preferably, the sealing end of the pull cap is provided with an annular inner sealing ring and an annular outer sealing ring, the inner side wall of the inner sealing ring is in sealing fit with the outer side wall of the plug, and the outer sealing The inner side wall of the ring is in sealing fit with the outer side wall of the main cover, and the outer side wall of the main cover is provided with an annular sealing protrusion.

Preferably, the outer wall of the plug is tapered from bottom to top, and the inner wall of the inner sealing ring matches the outer wall of the plug.

Preferably, a bottle mouth sealing ring is provided inside the connecting end of the main cap, and the inner side wall of the bottle mouth sealing ring is in sealing fit with the bottle mouth outer side wall of the bottle body.

Preferably, the outer diameter of the sealing end of the pull cap gradually expands along the axial direction, so that the end of the sealing end forms an enlarged end.

Compared with the prior art, the present invention has the following beneficial effects:

(1) The bottle cap of the present invention adopts a pull-out opening method. When the pull cap is pulled up, the sealing end is separated from the capping end, and the liquid outlet is opened, so that the liquid can flow out. The end is separated from the cap end, and the liquid outlet is closed to achieve the effect of closing the bottle cap. It is easy to use, low in cost, high in reliability, and has good visual effects, which help to enhance the sense of class of the product.

(2) In the present invention, the upper end and the lower end of the annular positioning groove limit the inner positioning convex ring to limit the movement stroke of the pull cover. The annular rib can cooperate with the inner positioning convex ring to provide a good pulling feel while avoiding the closure of the liquid outlet caused by the re-falling of the pull cap after opening the bottle cap.

(3) By setting the main cover anti-rotation limiting pin on the main cover and cooperating with the main cover anti-rotation limiting groove arranged on the bottle body, when the main cover is screwed on the bottle body, the main cover anti-rotation limit The positioning pin just snaps into the anti-rotation limiting groove of the main cover, thereby realizing the anti-rotation limiting of the main cover, which can effectively prevent the main cover from loosening.

(4) By setting the pull cover anti-rotation limit groove on the main cover and setting the pull cover anti-rotation protrusion on the pull cover, it can effectively prevent the pull cover from rotating during use, and the text printed on the pull cover can And pattern (pull cover is used as outer cover in the present invention) keeps not rotating, more attractive in appearance. Moreover, the anti-rotation limiting groove of the pull cover and the anti-rotation projection of the pull cover can play a role in guiding the pull of the pull cover.

(5) The annular sealing protrusion provided on the outer side wall of the main cover can interfere with the inner side wall of the outer sealing ring of the pull cover, so as to play a better sealing effect.

(6) The end of the sealing end forms an enlarged end, which not only makes it convenient to pull the cap forcibly when opening the bottle cap, but also enhances the aesthetic feeling of the product.

Description of drawings

Fig. 1 is a schematic sectional view of the present invention;

Fig. 2 is a schematic cross-sectional view of the pull cover of the present invention;

Fig. 3 is the structural representation of the pull cover of the present invention;

Fig. 4 is a schematic cross-sectional view of the main cover of the present invention;

Fig. 5 is a schematic structural view of the main cover of the present invention;

Fig. 6 is a schematic diagram of the cooperation between the anti-rotation limiting pin of the main cover and the anti-rotation limiting groove of the main cover to prevent the rotation of the main cover according to the present invention.

In the figure, 11 is the connection end, 12 is the cover end, 13 is the annular positioning groove, 14 is the annular convex rib, 15 is the anti-rotation limit pin of the main cover, 151 is the bevel of the limit pin, and 16 is the locking thread. 17 is a plug, 18 is an annular sealing protrusion, 19 is a bottle mouth sealing ring, 110 is a connecting rod, 111 is a pull cap anti-rotation limiting groove, 112 is a liquid outlet, 21 is an open end, and 22 is a sealing end, 23 is the inner positioning convex ring, 24 is the pull cap anti-rotation protrusion, 25 is the outer sealing ring, 26 is the inner sealing ring, 27 is the liquid outflow, 3 is the bottle body, 31 is the bottle mouth, 321 is the first bump, 322 is the second bump.

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

A pull-out bottle cap, as shown in Figures 1 to 5, includes a main cap and a pull cap, the two ends of the main cap are respectively a connecting end 11 and a capping end 12, the connecting end 11 is used to connect with the bottle body 3, The cover end 12 is provided with an annular liquid outlet 112. The two ends of the pull cover are respectively an open end 21 and a sealing end 22. The pull cover is sleeved on the main cover and can move axially relative to the main cover. The sealing end 22 cooperates with the cover end 12 to realize the opening and closing of the liquid outlet 112. It is characterized in that the inner side wall of the pull cover is provided with an inner positioning convex ring 23 along the circumferential direction, and the outer side wall of the main cover is provided with an annular positioning groove 13 along the circumferential direction. The positioning convex ring 23 is located in the annular positioning groove 13, the annular positioning groove 13 is used to limit the movement stroke of the pull cover, the annular positioning groove 13 is provided with at least one annular rib 14, and the height of the annular rib 14 is smaller than that of the annular positioning The depth of groove 13. The bottle cap of this embodiment adopts a pull-out opening method. When the pull cap is pulled up, the sealing end 22 is separated from the capping end 12, and the liquid outlet 112 is opened, so that the liquid can flow out. When the pull cap is pressed down, The sealing end 22 is separated from the capping end 12, and the liquid outlet 112 is closed to achieve the effect of closing the bottle cap.

In this embodiment, two annular ribs 14 are arranged in the annular positioning groove 13 along the axial direction. The annular rib can cooperate with the inner positioning convex ring to provide a good pulling feel while avoiding the closure of the liquid outlet caused by the re-falling of the pull cap after opening the bottle cap.

In this embodiment, the end of the connecting end 111 of the main cover is provided with a main cover anti-rotation limiting pin 15, which is used to cooperate with the two protrusions (respectively the first protrusion 321 and the second protrusion 321) provided on the bottle body 3. The anti-rotation limiting groove of the main cover formed by the protrusion 322) cooperates to prevent the main cover from rotating. The two protrusions constituting the anti-rotation limiting groove of the main cover are arranged one lower and one higher along the tightening direction of the main cover (that is, the first protrusion 321 has a higher height and the second protrusion 322 has a lower height). Furthermore, in this embodiment, the inner side wall of the connecting end 11 of the main cover is provided with a lock thread 16, which is used to be threadedly connected with the bottle body 3 (bottle mouth 31) to form the anti-rotation limiting groove of the main cover. The outer surfaces of the two first protrusions 321 and the second protrusions 322 are inclined surfaces, and the main cover anti-rotation limiting pin 15 is provided with an inclined surface matching the inclined surfaces of the outer surfaces of the protrusions ( Recorded as the limit pin slope 151, as shown in Figures 4 and 6), the anti-rotation limit pin 15 of the main cover is conveniently snapped into the anti-rotation limit groove of the main cover. The above arrangement makes when the main cap is screwed tightly on the bottle body, the anti-rotation limiting pin of the main cap just snaps into the anti-rotation limiting groove of the main cap, thereby realizing the anti-rotation limit of the main cap and effectively preventing the main cap from loosening. The inner wall of the pull cover of this embodiment is provided with a pull cover anti-rotation protrusion 24 in the axial direction, and the inner wall of the main cover is provided with a pull cover anti-rotation protrusion 24 matched with the pull cover anti-rotation protrusion 24 along the axial direction. Turn to the limit slot 111. It can effectively prevent the pull cover from rotating during use, and can keep the characters and patterns printed on the pull cover from rotating, which is more beautiful. Moreover, the anti-rotation limiting groove of the pull cover and the anti-rotation projection of the pull cover can play a role in guiding the pull of the pull cover.

In this embodiment, as shown in Figure 5, the end of the capping end 12 of the main cap is provided with a plug 17 (the plug 17 is connected to the inner side wall of the capping end 12 through a plurality of connecting rods 110), and the plug 17 There is an annular gap between the outer side wall of the main cover and the inner side wall of the main cover, the annular gap forms a liquid outlet 112, and the sealing end 22 of the pull cover is provided with a liquid outlet 27. The sealing end 22 of the pull cap is provided with an annular inner sealing ring 26 (the inner sealing ring 26 surrounds the liquid outlet 27) and an annular outer sealing ring 25, the inner side wall of the inner sealing ring 26 and the outer side wall of the plug 17 Sealing fit, the inner side wall of the outer sealing ring 25 is in sealing fit with the outer side wall of the main cover, and the outer side wall of the main cover is provided with an annular sealing protrusion 18 . The annular sealing protrusion provided on the outer side wall of the main cover can interfere with the inner side wall of the outer sealing ring of the pull cover to achieve a better sealing effect.

In this embodiment, a bottle mouth sealing ring 19 is provided inside the connecting end 11 of the main cap, and the inner wall of the bottle mouth sealing ring 19 is in sealing fit with the outer wall of the bottle mouth 31 of the bottle body 3 . Play a better role in sealing the bottle mouth.

In this embodiment, the outer diameter of the sealing end 22 of the pull cap gradually expands along the axial direction, so that the end of the sealing end forms an enlarged end. Not only is it convenient to pull and pull the cap when opening the bottle cap, but also the shape is more beautiful, which improves the aesthetic feeling of the product.

The above descriptions of the embodiments are for those of ordinary skill in the art to understand and use the invention. It is obvious that those skilled in the art can easily make various modifications to these embodiments, and apply the general principles described here to other embodiments without creative effort. Therefore, the present invention is not limited to the above-mentioned embodiments. Improvements and modifications made by those skilled in the art according to the disclosure of the present invention without departing from the scope of the present invention should fall within the protection scope of the present invention.

Claims (10)

1. A pull-out bottle cap, comprising a main cap and a pull cap, the two ends of the main cap are respectively a connecting end (11) and a capping end (12), and the connecting end (11) is used for Connected with the bottle body (3), the capping end (12) is provided with an annular liquid outlet (112), and the two ends of the pulling cap are respectively an open end (21) and a sealing end (22). It is sleeved on the main cover and can move axially relative to the main cover. The sealing end (22) cooperates with the cover end (12) to realize the opening and closing of the liquid outlet (112). It is characterized in that the pull The inner side wall of the cover is provided with an inner positioning convex ring (23) along the circumferential direction, and the outer side wall of the main cover is provided with an annular positioning groove (13) along the circumferential direction, and the inner positioning convex ring (23) is located in the annular positioning groove (13) , said annular positioning groove (13) is used to limit the movement stroke of the pull cover, said annular positioning groove (13) is provided with at least one annular rib (14), said annular rib (14) ) height is less than the depth of the annular positioning groove (13). 2. A pull-out bottle cap according to claim 1, characterized in that two annular ribs (14) are arranged in the annular positioning groove (13) along the axial direction. 3. A pull-out bottle cap according to claim 1, characterized in that, the inner wall of the pull cap is provided with a strip-shaped anti-rotation protrusion (24) along the axial direction of the pull cap. The inner side wall of the main cover is axially provided with a pull cover anti-rotation limiting groove (111) matched with the pull cover anti-rotation protrusion (24). 4. A pull-out bottle cap according to claim 1 or 3, characterized in that, the end of the connecting end (111) of the main cap is provided with a main cap anti-rotation limiting pin (15), It is used to cooperate with the anti-rotation limiting groove of the main cover formed by the two protrusions arranged on the bottle body (3) to prevent the main cover from rotating. 5. A pull-out bottle cap according to claim 4, characterized in that, the inner wall of the connecting end (11) of the main cap is provided with a locking thread (16) for connecting with the bottle body ( 3) Through threaded connection, the outer surfaces of the two protrusions forming the anti-rotation limiting groove of the main cover are inclined surfaces, and the anti-rotation limiting pin (15) of the main cover is provided on the side facing the tightening direction of the main cover to be in contact with the outer surface of the protrusions. The bevels on the sides match the bevels. 6 . The pull-out bottle cap according to claim 5 , wherein the two protrusions constituting the anti-rotation limiting groove of the main cap are arranged one low and one high along the screwing direction of the main cap. 7. A kind of pull-out bottle cap according to claim 1, characterized in that, the end of the capping end (12) of the main cap is provided with a plug (17), and the plug (17) There is an annular gap between the outer sidewall of 17) and the inner sidewall of the main cover, and the annular gap forms the liquid outlet (112). 8. A pull-out bottle cap according to claim 7, characterized in that, the sealing end (22) of the pull cap is provided with an annular inner sealing ring (26) and an annular outer sealing ring (25), the inner side wall of the inner sealing ring (26) is in sealing fit with the outer side wall of the plug (17), the inner side wall of the outer sealing ring (25) is in sealing fit with the outer side wall of the main cover, the The outer wall of the main cover is provided with an annular sealing protrusion (18). 9. A pull-out bottle cap according to claim 1, characterized in that, the connecting end (11) of the main cap is provided with a bottle mouth sealing ring (19), and the bottle mouth sealing ring The inner sidewall of (19) is sealingly fitted with the outer sidewall of the bottleneck (31) of the bottle body (3). 10. A pull-out bottle cap according to claim 1, characterized in that the sealing end (22) of the pull-out cap gradually expands in axial direction, so that the end of the sealing end forms an enlarged end.