Roll-on packaging bottle

Abstract

A roll-on packaging bottle, comprising an outer bottle body (1), a bottle cap (2), a roller ball (3), a connecting member (4), and an inner bottle body (5). The roller ball (3) is disposed in the connecting member (4); an inner ring of the bottle cap (2) is provided with a limit member (6); the connecting member (4) comprises a connecting base (41), a limit ring (43), and a roller ball cavity (42); the diameter of the inner cavity of a cylinder body is matched with the outer diameter of the roller ball (3); the roller ball (3) is disposed in the roller ball cavity (42); the connecting base (41) is provided with a liquid outlet hole (44) and is provided with an annular profile surface (45) fitted with the outer surface of the roller ball (3); an opening of the limit ring (43) contracts inward by a particular distance along the outer surface of the roller ball (3); in a non-use state, the bottle cap (2) covers the connecting member (4) and the limit member (6) is in interference fit with the limit ring (43); at least one of a position between the roller ball (3) and the limit ring (43) or a position between the roller ball (3) and the annular profile surface (45) is in sealed fit. By providing the limit ring (43) that contracts inward at the opening and pressing the limit ring (43) by the limit member (6) on the bottle cap (2), the contact sealing reliability between the roller ball (3) and a sealing surface in the non-use state is improved, so that the user experience of consumers is improved.

Description

Roll-on bottle Technical Field

[0001] The present invention relates to the field of cosmetics, and in particular to a liquid cosmetic container. Background Art

[0002] Most existing deodorants are composed of a container bottle containing liquid deodorant, a rolling ball cavity and a liquid outlet hole provided on the top of the bottle, and an applicator head composed of a rolling ball provided on the liquid outlet. When in use, the bottle is inverted, and the applicator head rolls to bring out the deodorant liquid and apply it on the body. The principle is similar to that of a ballpoint pen, and the whole is made of plastic parts. The liquid deodorant is discarded after use. When not in use, the bottle cap is screwed onto the bottle body through threads, and the top ring inside the bottle cap squeezes the rolling ball when the pre-tightening force of the threads is used, so that the rolling ball is fixed and blocks the liquid outlet hole, thereby preventing leakage of the deodorant liquid.

[0003] The defect of the existing technology is that, when a replaceable liner is used in the container for environmental reasons, the original simple compression sealing method will lead to a significant decrease in reliability as the use time continues to extend; at the same time, since the replaceable liner will add a detachable press-fit connector, the connector is usually connected to the outer bottle body through a thread, and it is inconvenient to set a threaded structure to connect the bottle cap to the outer bottle body. The bottle cap is mostly connected to the outer bottle body through a snap-fit ​​structure. At this time, the pressing force of the top ring on the ball is also insufficient, further reducing the reliability of the seal when not in use; therefore, it will cause troubles for consumers. Therefore, a new structure of the liquid outlet part is needed, which is matched with a more reliable sealing form to improve consumers' use experience of the replaceable container. Technical issues

[0004] The technical problem to be solved by the present invention is to provide a roller ball packaging bottle, which is additionally provided with a limiting ring that shrinks inward at the opening, and the limiting ring is pressed by a limiting piece on the bottle cap to improve the sealing reliability when the roller ball contacts the sealing surface in the non-use state. Technical Solutions

[0005] The present invention is achieved as follows: a roller-type packaging bottle comprises an outer bottle body, a bottle cap, a roller ball, a connector and an inner bottle body, wherein the outer bottle body and the inner bottle body are containers with openings, the inner bottle body is arranged in the outer bottle body, the connector is connected to the opening of the outer bottle body and fixes the inner bottle body, the roller ball is arranged in the connector, a limiting member is provided on the inner ring of the bottle cap, the connector comprises a connecting seat and a limiting ring, the limiting ring is connected to the connecting seat to form a roller ball cavity, the connector is installed on the outer bottle body through the connecting seat, the limiting ring is a cylindrical body coaxial with the connecting seat, the inner cavity diameter of the cylindrical body matches the outer diameter of the roller ball, and the roller ball is arranged in the roller ball cavity;

[0006] A liquid outlet hole connected to the inner bottle body is provided on the connecting seat on the side of the rolling ball cavity facing the outer bottle body, and an annular surface is provided on the upper edge of the liquid outlet hole to fit the outer surface of the rolling ball;

[0007] The opening of the limiting ring on the side of the rolling ball cavity away from the outer bottle body is contracted inward along the outer surface of the rolling ball by a certain distance so that the diameter of the limiting ring opening is slightly smaller than the diameter of the rolling ball, and the limiting ring is made of a material with a certain elasticity;

[0008] In the non-use state, the bottle cap is mounted on the connector and the limiting member and the limiting ring are interference fit. At this time, there is at least one sealing fit between the rolling ball and the limiting ring, or between the rolling ball and the annular surface.

[0009] The inner wall of the bottle cap is also provided with an ejector, which is a cylindrical body and is provided on the inner wall of the bottle cap; when not in use, the ejector portion of the ejector directly or indirectly squeezes the fixed ball to form a sealed fit between the ball and the annular surface.

[0010] The limiting member is a cylindrical body, which is installed in the bottle cap; in a non-use state, the cylindrical body is interference-fitted with the outer wall of the limiting ring.

[0011] The limiting member and the bottle cap are integrally formed into a whole.

[0012] The cylindrical body is detachably mounted on the ejector.

[0013] The bottom of the area where the cylindrical body matches the outer wall of the limiting ring extends horizontally outward and bends backward to form a supporting groove, and the outer wall of the supporting groove fits with the inner wall of the bottle cap.

[0014] An ejection plate is provided on the side of the cylindrical body away from the outer bottle body, and a first movable connection groove cooperating with the ejection member is provided on the top surface of the ejection plate; in a non-use state, the ejection portion of the ejection member indirectly squeezes and fixes the ball through the bottom surface of the ejection plate.

[0015] An extrusion piece is detachably installed in the bottle cap, the lower end surface of the extrusion piece is a concave spherical surface that matches the outer surface of the rolling ball, and the upper end surface of the extrusion piece is provided with a plug-in groove; when not in use, the ejection part of the ejection piece indirectly squeezes and fixes the rolling ball through the concave spherical surface.

[0016] The contact surface between the lower edge of the concave spherical surface and the upper edge of the limiting ring is a frustum, and the diameter of the frustum on the side away from the outer bottle body is larger than the diameter on the side close to the outer bottle body.

[0017] An elastic supporting structure is provided on the connecting seat; the limiting member is a cylindrical barrel, which is installed in the bottle cap; when not in use, the elastic supporting structure pushes the ball to press against the limiting ring, so that a sealing fit is formed between the ball and the limiting ring, and the cylindrical barrel is interference fit with the outer wall of the limiting ring.

[0018] The elastic support structure includes a plurality of fan-shaped springs, which are arranged in a ring array in the inner circle of the liquid outlet, with a certain gap left between two adjacent fan-shaped springs; when not in use, the fan-shaped springs push the ball to press against the limit ring; when in use, the ball is pushed to open the fan-shaped springs by pressure.

[0019] The elastic support structure is a plurality of elastic reset parts centrally and symmetrically arranged between the limiting ring and the annular profile.

[0020] The elastic support structure includes a spring piece, a support piece and a valve core. There is a certain stroke gap between the spring piece and the support piece. A recessed area is provided at the axis center of the spring piece. The support piece has a piston cavity that matches the movement stroke of the recessed area. Matching through holes are provided on the recessed area and the piston cavity. One end of the valve core matches the through hole on the recessed area through an open valve cover, and the other end of the valve core matches the through hole on the piston cavity through a closed valve cover; in the non-use state, the spring piece pushes the ball to press against the limit ring, and at this time the closed valve cover closes the through hole on the piston cavity; when in use, the ball pushes the valve core toward the bottle body under pressure, so that the through holes on the recessed area and the piston cavity are both in an open state.

[0021] A sealing ring is provided on the upper edge of the limiting ring; in a non-use state, the sealing ring is in contact with the ball seal, and the sealing ring is made of TPU material.

[0022] The limiting ring includes a fixing ring and a ball cylinder. The fixing ring is integrally formed and arranged on the connecting seat. The bottom of the ball cylinder is a second movable connecting groove that matches the fixing ring. The top opening of the ball cylinder matches the outer surface of the ball.

[0023] The limiting ring includes a fixing ring and a rolling ball cylinder. The fixing ring is integrally formed with the supporting piece, and the rolling ball cylinder is integrally formed with the spring piece. Beneficial effects

[0024] The roller-type packaging bottle of the present invention takes into account that the use of a replaceable inner bottle body will significantly extend the service life of the container. Therefore, an additional limiting ring that shrinks inward at the opening is provided, and the limiting ring is pressed by a limiting piece on the bottle cap to improve the sealing reliability of the contact between the roller ball and the sealing surface when not in use, thereby enhancing the consumer's usage experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] FIG1 is an exploded schematic diagram of parts of Example 1 of a roller-type packaging bottle of the present invention;

[0026] FIG2 is a schematic cross-sectional view of the area above the bottle body in Example 1 of the present invention;

[0027] FIG3 is an exploded schematic diagram of parts of Example 2 of the present invention;

[0028] FIG4 is a schematic cross-sectional view of the area above the bottle body in Example 2 of the present invention;

[0029] FIG5 is an exploded schematic diagram of parts of Example 3 of the present invention;

[0030] FIG6 is a schematic cross-sectional view of the area above the bottle body in Example 3 of the present invention;

[0031] FIG7 is an exploded schematic diagram of parts of Example 4 of the utility model;

[0032] FIG8 is a schematic cross-sectional view of the area above the bottle body in an unused state in Example 4 of the present invention;

[0033] FIG9 is a schematic diagram of the state of the ball in the use state in FIG8;

[0034] FIG10 is a perspective schematic diagram of an elastic support structure in Example 4 of the present invention;

[0035] FIG11 is a schematic cross-sectional view of the area above the bottle body in an unused state in Example 5 of the present invention;

[0036] FIG12 is a schematic diagram of the state of the ball in FIG11 in the use state;

[0037] FIG13 is a perspective schematic diagram of an elastic support structure in Example 5 of the present invention;

[0038] FIG14 is a schematic cross-sectional view of the area above the bottle body in an unused state in Example 6 of the present invention;

[0039] FIG15 is a schematic diagram of the state of the ball in FIG14 in the use state;

[0040] FIG16 is a perspective schematic diagram of an elastic support structure in Example 6 of the present invention;

[0041] In the figure: 1 outer bottle body, 2 bottle cap, 3 rolling ball, 4 connecting piece, 5 inner bottle body, 6 limiting piece, 7 extrusion piece, 21 ejection ring, 41 connecting seat, 42 rolling ball cavity, 43 limiting ring, 44 liquid outlet, 45 annular surface, 46 sector spring piece, 47 sealing ring, 48 elastic reset piece, 51 flange, 61 cylindrical barrel, 62 first movable connection groove, 63 support groove, 64 ejection plate, 71 concave spherical surface, 72 frustum, 73 plug-in groove, 411 limiting surface, 431 fixing ring, 432 rolling ball barrel, 433 second movable connection groove, 491 spring piece, 492 support piece, 493 stroke gap, 494 recessed area, 495 piston cavity, 496 through hole, 497 valve core, 498 open valve cover, 499 closed valve cover. Best Mode for Carrying Out the Invention

[0042] Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiments are only used to illustrate the present invention and are not used in limiting the scope of the present invention.In addition, should be understood that after reading the content of the present invention's description, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall equally within the scope limited by the appended claims of the application. Example

[0043] As shown in Figures 2 and 3, a roller-type packaging bottle includes an outer bottle body 1, a bottle cap 2, a roller ball 3, a connector 4 and an inner bottle body 5. The outer bottle body 1 and the inner bottle body 5 are containers with openings. The inner bottle body 5 is arranged in the outer bottle body 1. The connector 4 is connected to the opening of the outer bottle body 1 and fixes the inner bottle body 5. The roller ball 3 is arranged in the connector 4. The inner ring of the bottle cap 2 is provided with a limiter 6. The connector 4 includes a connecting seat 41 and a limit ring 43. The limiter The limiting ring 43 is connected to the connecting seat 41 to form a ball cavity 42. The connecting member 4 is installed on the outer bottle body 1 through the connecting seat 41. The limiting ring 43 is a cylindrical body coaxial with the connecting seat 41. The inner diameter of the cylindrical body matches the outer diameter of the ball 3. The ball 3 is arranged in the ball cavity 42. During installation, the inner bottle body 5 is placed in the outer bottle body 1, and then the connecting member 4 is installed. At this time, the connecting seat 41 of the connecting member 4 presses the flange 51 of the inner bottle body 5 through the limiting surface 411 to fix it.

[0044] The present invention can be further described as follows: a liquid outlet 44 communicating with the inner bottle body 5 is provided on the connecting seat 41 on the side of the ball cavity 42 facing the outer bottle body 1, and the upper edge of the liquid outlet 44 is provided with a ring-shaped surface 45 that fits the outer surface of the ball 3; the opening of the limiting ring 43 on the side of the ball cavity 42 away from the outer bottle body 1 is retracted inwardly along the outer surface of the ball 3 by a certain distance so that the diameter of the opening of the limiting ring 43 is slightly smaller than the diameter of the ball 3, thereby keeping the ball 3 in the ball cavity 42; the limiting member 6 is a cylindrical barrel 61, and the cylindrical barrel 61 is installed in the bottle cap 2; under normal circumstances, the diameter of the opening of the limiting ring 43 gradually shrinks inward to 80% to 95% of the diameter of the ball 3.

[0045] When not in use, the bottle cap 2 is mounted on the connector 4 and the cylindrical body 61 is interference fit with the outer wall of the limiting ring 43. The limiting ring 43 is made of a material with a certain elasticity, for example, when polyethylene (PE) material is used, the elastic modulus is 100-300 MPa, and when PP (polypropylene) material is used, the elastic modulus is 0.8-2.5 GPa. After the bottle cap 2 is put on, the interference fit causes the cylindrical body 61 to squeeze the limiting ring 43, causing the limiting ring 43 to shrink slightly inward, thereby locking the ball 3. At this time, there is at least one sealing fit between the ball 3 and the limiting ring 43, or between the ball 3 and the annular surface 45. When in use, the bottle cap 2 is removed and the roller-type packaging bottle is inverted. After the ball 3 contacts the surface of the human body and is subjected to pressure in the direction of the outer bottle body 1, it is in a loose state and can roll freely, so that the liquid cosmetics in the inner bottle body 5, such as deodorant, are brought out to the user's body surface by the rolling of the ball 3.

[0046] Taking environmental protection into consideration, the replaceable inner bottle body 3 in the present invention is made of a degradable material, and the degradable material is a paper material made of wood fiber, bamboo fiber, chitin fiber or polylactic acid fiber.

[0047] In Examples 1, 2, and 3, an ejector 21 is further provided on the inner wall of the bottle cap 2. The ejector 21 is a cylindrical body, which is provided on the inner wall of the bottle cap 2. When not in use, the ejecting portion of the ejector 21 directly or indirectly squeezes and fixes the ball 3 so that a sealing fit is formed between the ball 3 and the annular surface 45. When in use, the bottle cap 2 is removed, and the roller-type packaging bottle is inverted so that the ball 3 faces downward. At this time, the ball 3 is in a loose state and can rotate freely, bringing out the deodorant liquid from the liquid outlet 44 and applying it to the consumer's body. Example 1

[0048] As shown in Figures 1 and 2, the limiting member 6 and the bottle cap 2 are integrally formed into a whole. Example 2

[0049] As shown in Figures 3 and 4, the cylindrical body 61 can be detachably mounted on the ejector 21; the difference between this embodiment and Example 1 is that the bottom of the area where the cylindrical body 61 cooperates with the outer wall of the limiting ring 43 extends horizontally outward and bends backward to form a support groove 63, and the outer wall of the support groove 63 fits with the inner wall of the bottle cap 2.

[0050] This embodiment can be further described as follows: an ejector plate 64 is provided on the side of the cylindrical body 61 away from the outer bottle body 1, and a first movable connecting groove 62 is provided on the top surface of the ejector plate 64, which cooperates with the ejector 21; in the non-use state, the ejection portion of the ejector 21 indirectly squeezes and fixes the ball 3 through the bottom surface of the ejector plate 64; considering the convenience of disassembly and assembly to facilitate cleaning, the first movable connecting groove 62 and the ejector 21 are connected by plug-in connection; in this embodiment, as a preference, the ejector plate 64 is a flat plate. Example 3

[0051] As shown in Figures 5 and 6, the difference between this embodiment and Example 1 is that a squeeze piece 7 is detachably installed in the bottle cap 2, the lower end surface of the squeeze piece 7 is a concave spherical surface 71 that matches the outer surface profile of the ball 3, and the upper end surface of the squeeze piece 7 is provided with a plug-in groove 73; when not in use, the ejection portion of the ejection piece 21 indirectly squeezes and fixes the ball 3 through the concave spherical surface 71.

[0052] In this embodiment, in order to ensure guidance and extrusion stability during extrusion, the contact surface between the lower edge of the concave spherical surface 71 and the upper edge of the limiting ring 43 is a frustum 72, and the diameter of the frustum 72 on the side away from the outer bottle body 1 is larger than the diameter on the side close to the outer bottle body 1.

[0053] In Examples 4, 5, and 6, an elastic supporting structure is provided on the connecting seat 41, and the limiting member 6 is a cylindrical body 61, which is installed in the bottle cap 2; when not in use, the elastic supporting structure pushes the ball 3 to be pressed against the limiting ring 43, and at this time, the cylindrical body 61 and the outer wall of the limiting ring 43 have an interference fit, so that the ball 3 is housed and a sealing fit is formed between the ball 3 and the limiting ring 43; when in use, the ball-type packaging bottle is inverted so that the ball 3 is downward. During use, the ball 3 contacts the surface of the body and is pushed toward the bottle body 1 by pressure, pushing the elastic supporting structure, so that the ball 3 becomes loose and can rotate freely. At this time, the deodorant liquid flows onto the ball 3, and is brought out and applied to the consumer's body as the ball 3 rotates. Example 4

[0054] As shown in Figures 7, 8, 9 and 10, the elastic support structure is a plurality of elastic reset parts 48 that are centrally symmetrically arranged between the limiting ring 43 and the annular surface 45; the elastic reset part 48 is an S-shaped torsion spring or the material between the limiting ring 43 and the annular surface 45 is hollowed out to form an S-shaped elastic reset part 48.

[0055] In this embodiment, as a further improved embodiment, in order to facilitate the removal of the ball 3 for cleaning, the limiting ring 43 includes a fixing ring 431 and a ball cylinder 432. The fixing ring 431 is integrally formed and arranged on the connecting seat 41. The bottom of the ball cylinder 432 is a second movable connecting groove 433 that cooperates with the fixing ring 431, and the top opening of the ball cylinder 432 cooperates with the outer surface of the ball 3; under normal circumstances, considering the connection reliability between the fixing ring 431 and the second movable connecting groove 433, the two are connected by threads. After removing the second movable connecting groove 433, the ball cavity 42 can be opened and the ball 3 can be taken out.

[0056] When a split detachable structure is adopted, considering that the position of the cylindrical body 61 squeezing the limit ring 43 may be interfered with by the second movable groove 433, the arc of the upper edge of the ball barrel 432 is larger, so that the cylindrical body 61 can directly squeeze the upper part of the ball barrel 432. Example 5

[0057] As shown in Figures 11, 12 and 13, the difference between Example 5 and Example 4 is that the elastic support structure includes a plurality of fan-shaped spring pieces 46, and the plurality of fan-shaped spring pieces 46 are arranged in a ring array in the inner circle of the liquid outlet 44, with a certain gap left between two adjacent fan-shaped spring pieces 46; when not in use, the fan-shaped spring pieces 46 push the ball 3 to be pressed against the limiting ring 43; when in use, the ball 3 is pushed by pressure to open the fan-shaped spring pieces 46.

[0058] In this embodiment, as a further improved embodiment, a sealing ring 47 is provided on the upper edge of the limiting ring 43; in the non-use state, the sealing ring 47 is in sealing contact with the ball 3, and the sealing ring 47 is made of TPU material. Example 6

[0059] As shown in Figures 14, 15 and 16, the elastic support structure includes a spring piece 491, a support piece 492 and a valve core 497. There is a certain travel gap 493 between the spring piece 491 and the support piece 492. A recessed area 494 is provided at the axis of the spring piece 491. The support piece 492 has a piston cavity 495 that matches the movement stroke of the recessed area 494. The recessed area 494 and the piston cavity 495 are provided with matching through holes 496. One end of the valve core 497 is matched with the through hole 496 on the recessed area 494 through an open valve cover 498. When the bottle body 1 is in use, the ball 3 is pushed by the pressure to push the valve core 497 toward the bottle body 1, so that the through hole 496 on the recessed area 494 and the piston cavity 495 are both in an open state.

[0060] In addition, in this embodiment, in order to be able to remove the ball 3 and facilitate cleaning as in Example 4, taking into account the simplification of structure and the convenience of disassembly and assembly, the spring piece 491 and the support piece 492 are split, and the support piece 492 is formed as one piece with the base 41; the spring piece 491 is located at the bottom of the ball cylinder 432, and the ball cylinder 432 is limited by the fixing ring 431 formed as one piece with the base 41; at the same time, the limiting ring 43 includes a fixing ring 431 and a ball cylinder 432, the fixing ring 431 is formed as one piece with the support piece 492, and the ball cylinder 432 is formed as one piece with the spring piece 491.

Claims

1. A roller-type packaging bottle, comprising an outer bottle body (1), a bottle cap (2), a roller ball (3), a connecting piece (4) and an inner bottle body (5), wherein the outer bottle body (1) and the inner bottle body (5) are containers with openings, the inner bottle body (5) is arranged in the outer bottle body (1), the connecting piece (4) is connected to the opening of the outer bottle body (1) and fixes the inner bottle body (5), and the roller ball (3) is arranged in the connecting piece (4), wherein: The inner ring of the bottle cap (2) is provided with a stopper (6); the connecting member (4) comprises a connecting seat (41) and a stopper ring (43); the stopper ring (43) is connected to the connecting seat (41) to form a rolling ball cavity (42); the connecting member (4) is installed on the outer bottle body (1) through the connecting seat (41); the stopper ring (43) is a cylindrical body coaxial with the connecting seat (41); the inner diameter of the cylindrical body matches the outer diameter of the rolling ball (3); and the rolling ball (3) is arranged in the rolling ball cavity (42); A liquid outlet (44) communicating with the inner bottle body (5) is provided on the connecting seat (41) on the side of the rolling ball cavity (42) facing the outer bottle body (1), and an annular surface (45) is provided on the upper edge of the liquid outlet (44) and is in contact with the outer surface of the rolling ball (3); The opening of the limiting ring (43) on the side of the rolling ball cavity (42) away from the outer bottle body (1) is contracted inwards by a certain distance along the outer surface of the rolling ball (3) so that the diameter of the opening of the limiting ring (43) is slightly smaller than the diameter of the rolling ball (3), and the limiting ring (43) is made of a material with a certain elasticity; When not in use, the bottle cap (2) is mounted on the connecting piece (4) and the limiting piece (6) is interference fit with the limiting ring (43). At this time, at least one of the points between the rolling ball (3) and the limiting ring (43) or between the rolling ball (3) and the annular profile (45) is sealed.

2. The roller-type packaging bottle according to claim 1, characterized in that: The inner wall of the bottle cap (2) is also provided with an ejector (21), which is a cylindrical body, and is provided on the inner wall of the bottle cap (2); in a non-use state, the ejector portion of the ejector (21) directly or indirectly squeezes the fixed rolling ball (3) so that a sealing fit is formed between the rolling ball (3) and the annular profile (45).

3. The roller-type packaging bottle according to claim 2, characterized in that: The limiting member (6) is a cylindrical body (61), and the cylindrical body (61) is installed in the bottle cap (2); in a non-use state, the cylindrical body (61) is interference-fitted with the outer wall of the limiting ring (43).

4. The roller-type packaging bottle according to claim 3, characterized in that: The limiting member (6) and the bottle cap (2) are integrally formed into a whole.

5. The roller-type packaging bottle according to claim 3, characterized in that: The cylindrical body (61) is detachably mounted on the ejector (21).

6. The roller-type packaging bottle according to claim 5, characterized in that: The bottom of the area where the cylindrical body (61) matches the outer wall of the limiting ring (43) extends horizontally outward and bends backward to form a supporting groove (63), and the outer wall of the supporting groove (63) fits the inner wall of the bottle cap (2).

7. The roller-type packaging bottle according to claim 5 or 6, characterized in that: An ejector plate (64) is provided on the side of the cylindrical body (61) away from the outer bottle body (1), and a first movable groove (62) cooperating with the ejector member (21) is provided on the top surface of the ejector plate (64); in a non-use state, the ejector portion of the ejector member (21) indirectly squeezes and fixes the rolling ball (3) through the bottom surface of the ejector plate (64).

8. The roller-type packaging bottle according to claim 5 or 6, characterized in that: The bottle cap (2) is detachably mounted with an extrusion piece (7), the lower end surface of the extrusion piece (7) being an inner concave spherical surface (71) matching the outer surface profile of the rolling ball (3), and the upper end surface of the extrusion piece (7) being provided with an insertion groove (73); in a non-use state, the ejection portion of the ejection piece (21) indirectly squeezes and fixes the rolling ball (3) via the inner concave spherical surface (71).

9. The roller-type packaging bottle according to claim 8, characterized in that: The contact surface where the lower edge of the concave spherical surface (71) contacts the upper edge of the limiting ring (43) is a frustum surface (72), and the diameter of the frustum surface (72) on the side away from the outer bottle body (1) is larger than the diameter on the side close to the outer bottle body (1).

10. The roller-type packaging bottle according to claim 1, characterized in that: The connecting seat (41) is provided with an elastic support structure; the limiting member (6) is a cylindrical body (61), and the cylindrical body (61) is installed in the bottle cap (2); in a non-use state, the elastic support structure pushes the rolling ball (3) to press against the limiting ring (43), so that a sealing fit is formed between the rolling ball (3) and the limiting ring (43), and the cylindrical body (61) and the outer wall of the limiting ring (43) are interference fit.

11. The roller-type packaging bottle according to claim 10, characterized in that: The elastic support structure comprises a plurality of fan-shaped spring sheets (46), which are arranged in an annular array in the inner circle of the liquid outlet hole (44), with a certain gap left between two adjacent fan-shaped spring sheets (46); in a non-use state, the fan-shaped spring sheets (46) push the rolling ball (3) to press against the limiting ring (43); in use, the rolling ball (3) is pushed by pressure to open the fan-shaped spring sheets (46).

12. The roller-type packaging bottle according to claim 10, characterized in that: The elastic support structure comprises a plurality of elastic reset members (48) centrally and symmetrically arranged between the limiting ring (43) and the annular profile (45).

13. The roller-type packaging bottle according to claim 10, characterized in that: The elastic support structure comprises a spring sheet (491), a support sheet (492) and a valve core (497); a certain travel gap (493) is provided between the spring sheet (491) and the support sheet (492); a recessed area (494) is provided at the axis of the spring sheet (491); the support sheet (492) has a piston cavity (495) matched with the movement stroke of the recessed area (494); the recessed area (494) and the piston cavity (495) are provided with matching through holes (496); one end of the valve core (497) is connected to the recessed area (494) through an open valve cover (498). The through hole (496) on the piston cavity (495) is matched with the through hole (496) on the valve core (494), and the other end of the valve core (497) is matched with the through hole (496) on the piston cavity (495) through the closed valve cover (499); when not in use, the spring (491) pushes the ball (3) to press against the limit ring (43), and the closed valve cover (499) closes the through hole (496) on the piston cavity (495); when in use, the ball (3) is pushed by pressure to push the valve core (497) toward the bottle body (1), so that the recessed area (494) and the through hole (496) on the piston cavity (495) are both in an open state.

14. The roller-type packaging bottle according to any one of claims 11 to 13, characterized in that: A sealing ring (47) is arranged on the upper edge of the limiting ring (43); in a non-use state, the sealing ring (47) is in sealing contact with the rolling ball (3), and the sealing ring (47) is made of TPU material.

15. The roller-type packaging bottle according to any one of claims 11 to 13, characterized in that: The limiting ring (43) comprises a fixing ring (431) and a rolling ball cylinder (432); the fixing ring (431) is integrally formed and arranged on the connecting seat (41); the bottom of the rolling ball cylinder (432) is a second movable connecting groove (433) matched with the fixing ring (431); and the top opening of the rolling ball cylinder (432) is matched with the outer surface of the rolling ball (3).

16. The roller-type packaging bottle according to claim 13, characterized in that: The limiting ring (43) comprises a fixing ring (431) and a rolling ball cylinder (432); the fixing ring (431) and the supporting sheet (492) are integrally formed; and the rolling ball cylinder (432) and the spring sheet (491) are integrally formed.

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