Piston-free vacuum bottle body
By setting up inner bags and rolling parts in the vacuum bottle body, the vacuum effect is used to shrink and keep the inner bag tight, the problem of residual content caused by the difficulty of fitting between the piston and the inner cavity wall of the bottle body is solved, and the full extrusion of the inner bag and optimization of the space is achieved.
Patent Information
- Application Number
- CN202421083186.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-17
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-05-17
AI Technical Summary
It is difficult for the piston in the existing vacuum bottle to maintain fit between the inner cavity wall of the bottle, resulting in residual content and waste.
A vacuum bottle body without piston is designed, adopting a combined structure of inner bags and coiled parts, which shrinks the inner bag through vacuum action, and the coiled parts tighten the edge of inner bags to avoid wrinkles and promote the flow of inner goods.
Effectively reduce the residue of the interior, promote the full extrusion of the interior, increase the loading space, and avoid wrinkles caused by the interior bag.
Smart Images
Figure CN222572870U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vacuum bottle bodies, in particular to a vacuum bottle body without a piston. Background Art
[0002] A vacuum bottle is a commonly used container. The vacuum bottle includes a bottle body and a pressing head that are connected to each other. A piston is arranged at the bottom end of the bottle body. The pressing head cover is arranged at the bottle mouth of the bottle body to block external air from entering the bottle body and form a vacuum state. The pressing head has a pressing vacuum pump. When the pressing head is pressed, the atmospheric pressure is used to push the piston to move from the bottom of the bottle body to the top, and correspondingly pushes the contents loaded inside the bottle body to flow and be extruded through the discharge port of the pressing head. During the movement of the piston, it is difficult for the outer peripheral surface of the piston to maintain contact with the inner cavity wall of the bottle body, and a gap is easily generated, resulting in the contents remaining on the inner cavity wall of the bottle body, causing waste. Utility Model Content
[0003] The utility model aims to provide a vacuum bottle body without a piston, which can reduce the residual content of the content and thus promote the full extrusion of the content.
[0004] The purpose of the utility model is achieved through the following technical solutions:
[0005] A piston-free vacuum bottle comprises a bottle body with side walls and a bottom wall, a bottle shoulder with a pressing head is detachably provided on the top of the bottle body, a loading chamber is formed inside the bottle body and the bottle shoulder, a shrinkable inner bag is provided in the loading chamber, the inner bag is provided with at least two edge portions around the bag opening, and a rolling piece for rolling up the edge portion on the inner bag is provided on the side wall of the bottle body.
[0006] By providing an inner bag, the inner bag shrinks under the effect of vacuum, squeezing the contents to promote the flow of the contents. At the same time, by providing a winding piece to roll up the edge of the inner bag, the inner bag can be kept taut to avoid wrinkles.
[0007] On the basis of the above technical solution, the present invention can be improved as follows:
[0008] Furthermore, the side wall of the bottle body includes an outer wall and an inner wall, a winding channel is formed between the outer wall and the inner wall, a winding port is arranged near the top of the inner wall, and the winding piece is arranged at the bottom of the winding channel; the edge portion on the inner bag enters the inside of the side wall of the bottle body through the winding port, extends in the winding channel and is wound around the winding piece.
[0009] Furthermore, the winding member includes a reel and a coil spring, the reel is rotatably mounted on the bottom of the winding channel through a support, a receiving groove is provided at the center of one side of the reel, the coil spring is installed in the receiving groove of the reel, one end of the coil spring is connected to a connecting shaft provided on the support, the other end of the coil spring spirally extends from the inside to the outside around the connecting shaft and is connected to the wall of the receiving groove of the reel, and the edge of the inner bag is wound around the outer peripheral surface of the reel.
[0010] Furthermore, the bottom wall of the bottle body is provided with an air hole, and the air hole is connected to the loading chamber inside the bottle body.
[0011] Furthermore, a baffle is provided on the inner side wall of the bottle body at the rolling opening, and the bottom of the baffle contacts the edge of the inner bag.
[0012] By arranging a baffle at the rewinding opening, the contents can be prevented from entering the rewinding channel through the rewinding opening, thereby avoiding blocking the rewinding channel and ensuring smooth rewinding of the edge of the inner bag.
[0013] Furthermore, the pressing head includes a vacuum pump arranged in the bottle shoulder, and a pressing head connected to the discharge end of the vacuum pump, the pressing head extends out of the top surface of the bottle shoulder and can move along the axial direction of the bottle shoulder, and a through hole for the pressing head to pass through is correspondingly provided on the top wall of the bottle shoulder.
[0014] Compared with the prior art, the utility model technology has the following advantages:
[0015] The utility model arranges an inner bag inside the bottle body, arranges a winding channel inside the side wall of the bottle body, and arranges a winding piece inside the winding channel. The edge of the inner bag is tightened by the winding piece, which not only eliminates the need to arrange a piston and increases the loading space, but also avoids wrinkles in the inner bag, reduces residual content, and promotes full extrusion of the content. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0017] Figure 1 This is a schematic structural diagram of a vacuum bottle without a piston in Example 1;
[0018] Figure 2 for Figure 1 A local enlarged view of point A;
[0019] Figure 3 It is a top view of the vacuum bottle body without a piston after the bottle shoulder is removed in Example 1;
[0020] Figure 4 It is a top view of the vacuum bottle body without a piston after the bottle shoulder is removed in Example 2.
[0021] Markings on the accompanying drawings: 1-bottle body, 1a-outer wall, 1b-inner wall, 2-bottle shoulder, 3-vacuum pump, 4-pressure head, 4a-discharging channel, 5-inner bag, 6-reel, 7-reel spring, 8-baffle. DETAILED DESCRIPTION
[0022] The following is a further description of the specific embodiments of the present invention in conjunction with the accompanying drawings. The description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each embodiment of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0023] Embodiment 1
[0024] See also Figures 1 to 3 The utility model relates to a piston-free vacuum bottle, comprising a detachably connected bottle body 1 and a bottle shoulder 2, and a pressing head arranged on the bottle shoulder 2, with a discharge port arranged on the pressing head; the bottle body 1 is loaded with contents, and a vacuum is formed inside the bottle body 1 by pressing the pressing head, so that the contents can flow inside the bottle body 1 toward the pressing head and be squeezed out from the discharge port on the pressing head.
[0025] Specifically, the bottle body 1 in this embodiment is a hollow cylindrical bottle body structure, the bottle body 1 has a bottom wall and an annular side wall, and the top wall of the bottle body 1 forms a bottle mouth; the bottle shoulder 2 has a top wall and an annular side wall; the pressing head includes a vacuum pump 3 arranged in the bottle shoulder 2, and a pressing head 4 connected to the discharge end of the vacuum pump 3, the pressing head 4 extends out of the top surface of the bottle shoulder 2 and can move along the axial direction of the bottle shoulder 2, and the top wall of the bottle shoulder 2 is correspondingly provided with a through hole for the pressing head 4 to pass through; the bottle body 1 and the bottle shoulder 2 form a loading chamber for accommodating the contents, and the bottle shoulder 2 is detachably connected to the bottle The top of the bottle body 1 is located at the bottle mouth, and the vacuum pump 3 on the bottle shoulder 2 is extended into the internal loading chamber of the bottle body 1; a discharge channel 4a through which the content can flow is formed inside the pressure head 4, and a discharge port connected to the discharge channel 4a is arranged at the end of the pressure head 4; by pressing the pressure head 4 to drive the vacuum pump 3 to form a vacuum in the loading chamber, the content can flow from the bottom end to the top end of the loading chamber, enter the vacuum pump 3 through the feeding end of the vacuum pump 3, enter the inside of the pressure head 4 from the discharge end of the vacuum pump 3, and after passing through the discharge channel 4a inside the pressure head 4, it is squeezed out from the discharge port of the pressure head 4.
[0026] It should be noted that the contents that can be loaded into the vacuum bottle in this embodiment are liquids or pastes; according to actual needs, the bottle body 1 of the vacuum bottle can also be a hollow rectangular bottle structure; the vacuum pump 3 is a pressing pump in the prior art, and the feed end of the vacuum pump 3 faces the bottom of the loading chamber.
[0027] An inner bag 5 is arranged in the loading chamber, and the inner bag 5 divides the loading chamber into a first chamber and a second chamber located at the bottom of the first chamber; a bag opening is formed at the top of the inner bag 5, and the contents are loaded into the first chamber through the bag opening; two edge portions are arranged around the bag opening of the inner bag 5, and the two edge portions are located at opposite sides of the inner bag 5, and the edge portions on the inner bag 5 are used to connect the opposite sides of the inner bag 5 to the side walls of the bottle body 1 respectively to open the bag opening of the inner bag 5; when the two edge portions respectively pull the two sides of the inner bag 5 outward, the bag opening can be opened to both sides, and the contents are loaded into the inner bag 5 through the bag opening.
[0028] During specific implementation, the pressing head is pressed, and the air inside the first chamber is discharged through the vacuum pump 3 to form a vacuum. Under the action of the vacuum, the inner bag 5 shrinks toward the inside of the inner bag 5, the first chamber gradually decreases, and the second chamber gradually increases. The content fills the entire first chamber. Under the extrusion pressure generated by the contraction of the inner bag 5, the content flows to the top of the first chamber, is sucked into the inside of the pressure head 4 through the vacuum pump 3, and is extruded from the discharge port of the pressure head 4 after passing through the discharge channel 4a inside the pressure head 4. Compared with the prior art in which a piston is arranged inside the bottle body 1, in this embodiment, vacuum is used to compress the internal space of the inner bag 5 to form an extrusion pressure on the content, which can promote the flow of the content. The inner walls of the inner bag 5 can fit together to reduce the residue of the content. The thickness of the inner bag 5 is significantly smaller than the piston, which can reduce space occupancy and increase the loading capacity of the content.
[0029] The opposite side walls of the bottle body 1 are provided with rolling pieces for rolling up the edge of the inner bag 5. The rolling pieces can keep the inner bag 5 taut when it shrinks, so that the inner bag 5 is not prone to wrinkles when it shrinks, which facilitates the full extrusion of the contents.
[0030] Specifically, the side wall of the bottle body 1 is a double-layer structure, including an outer wall 1a and an inner wall 1b, a winding channel is formed between the outer wall 1a and the inner wall 1b, a winding port is arranged near the top of the inner wall 1b, and a winding piece is arranged at the bottom of the winding channel; the two edge portions of the inner bag 5 enter the inside of the side wall of the bottle body 1 through the winding port, extend in the winding channel and are wound on the winding piece; when the inner bag 5 shrinks inwardly, the winding piece winds around the edge portions of the inner bag 5 to tighten the two sides of the inner bag 5.
[0031] The winding member includes a reel 6 and a coil spring 7. The reel 6 is rotatably mounted on the bottom of the winding channel through a support. A receiving groove is provided at the center of one side of the reel 6. The coil spring 7 is installed in the receiving groove of the reel 6. One end of the coil spring 7 is connected to a connecting shaft provided on the support. The other end of the coil spring 7 spirally extends from the inside to the outside around the connecting shaft and is connected to the wall of the receiving groove of the reel 6. The edge of the inner bag 5 is wound on the outer peripheral surface of the reel 6.
[0032] During specific implementation, the pressing head is pressed to form a vacuum inside the bottle body 1, and the coil spring 7 provides power to the reel 6 to drive the reel 6 to rotate and wind up the edge of the inner bag 5, thereby tightening the two sides of the inner bag 5 accordingly to keep the bag mouth of the inner bag 5 open. The inner bag 5 shrinks inward, and the content is squeezed to flow toward the top of the bottle body 1 and is squeezed out through the discharge port of the pressing head, thereby avoiding wrinkles in the inner bag 5 and effectively preventing the content from remaining.
[0033] A baffle 8 is provided on the inner wall of the bottle body 1 at the winding port, and the bottom of the baffle 8 contacts the edge of the inner bag 5 to block the contents from entering the winding channel through the winding port, thereby preventing the winding channel from being blocked and smoothly winding the edge of the inner bag 5; further, baffle 8 is provided with bristles at the bottom to reduce the rigid friction between the baffle and the edge of the inner bag 5 and prevent the edge from breaking.
[0034] It should be noted that the baffle 8 is an elastic plate, and the gap between the bottom of the baffle 8 and the winding port should be smaller than the thickness of the edge of the inner bag 5 to ensure that the edge is in contact with the baffle 8. When the pressing head is pressed, the air inside the first chamber is discharged through the vacuum pump 3 to form a vacuum, and the contents flow to the top of the first chamber. The air pressure in the winding channel is greater than the air pressure in the first chamber, and the contents will not enter the winding channel through the winding port; when stationary, the air pressure in the winding channel is the same as the air pressure in the first chamber, and the winding port is blocked by the baffle 8 to prevent the contents from entering the winding channel.
[0035] The bottom wall of the bottle body 1 is provided with an air hole, which is connected to the second chamber inside the bottle body 1. When the inner bag 5 shrinks, the air in the first chamber enters the winding channel through the winding port, and the air outside the bottle body 1 enters the second chamber through the air hole to achieve pressure balance inside and outside the bottle body.
[0036] Embodiment 2
[0037] See also Figure 4 The difference between the technical solution of the second embodiment and the first embodiment is that in the present embodiment, four edge portions are provided on the inner bag 5, and the four edge portions are evenly spaced around the bag opening of the inner bag 5. Correspondingly, four winding pieces are provided at the bottom of the winding channel of the bottle body 1, and the winding pieces are evenly spaced around the bottle body 1, and the edge portions on the inner bag 5 are wound on the winding pieces one by one; by providing four edge portions on the inner bag 5 and four winding pieces inside the bottle body 1, four force points can be formed on the inner bag 5, so as to open the bag opening of the inner bag 5 to all sides, improve the opening degree of the bag opening, increase the flow rate of the contents, and ensure smooth extrusion of the contents.
[0038] It should be noted that, according to actual needs, the number of edge portions on the inner bag 5 can be increased accordingly, and accordingly, the number of winding pieces can also be increased accordingly, so that the edge portions on the inner bag 5 are wound with the winding pieces in a one-to-one correspondence.
[0039] The above-mentioned embodiments of the utility model are not intended to limit the protection scope of the utility model, and the implementation methods of the utility model are not limited to these. All other various forms of modifications, replacements or changes made to the above-mentioned structure of the utility model based on the above-mentioned contents of the utility model, in accordance with the common technical knowledge and customary means in the field, without departing from the above-mentioned basic technical ideas of the utility model, should fall within the protection scope of the utility model.
Claims
1. A vacuum bottle without a piston, comprising a bottle body having a side wall and a bottom wall, a bottle shoulder having a pressing head being detachably provided on the top of the bottle body, and a filling chamber being formed inside the bottle body and the bottle shoulder, characterized in that: A shrinkable inner bag is arranged in the loading chamber, the inner bag is provided with at least two edge portions around the bag opening, and the side wall of the bottle body is provided with a rolling piece for rolling up the edge portions on the inner bag.
2. The piston-free vacuum bottle according to claim 1, characterized in that: The side wall of the bottle body includes an outer wall and an inner wall, a winding channel is formed between the outer wall and the inner wall, a winding port is arranged near the top of the inner wall, and the winding piece is arranged at the bottom of the winding channel; the edge portion of the inner bag enters the inside of the side wall of the bottle body through the winding port, extends in the winding channel and is wound around the winding piece.
3. The piston-free vacuum bottle according to claim 2, characterized in that: The winding member includes a reel and a coil spring. The reel is rotatably mounted on the bottom of the winding channel through a support. A receiving groove is provided at the center of one side of the reel. The coil spring is installed in the receiving groove of the reel. One end of the coil spring is connected to a connecting shaft provided on the support. The other end of the coil spring spirally extends from the inside to the outside around the connecting shaft and is connected to the wall of the receiving groove of the reel. The edge of the inner bag is wound around the outer circumferential surface of the reel.
4. The piston-free vacuum bottle according to claim 3, characterized in that: The bottom wall of the bottle body is provided with an air hole, and the air hole is connected to the loading chamber inside the bottle body.
5. The piston-free vacuum bottle according to claim 2, characterized in that: The inner side wall of the bottle body is provided with a baffle at the rolling opening, and the bottom of the baffle contacts the edge of the inner bag.
6. The piston-free vacuum bottle according to any one of claims 1 to 5, characterized in that: The pressing head includes a vacuum pump arranged in the bottle shoulder, and a pressing head connected to the discharge end of the vacuum pump. The pressing head extends out of the top surface of the bottle shoulder and can move along the axial direction of the bottle shoulder. A through hole for the pressing head to pass through is correspondingly arranged on the top wall of the bottle shoulder.