Vacuum bottle for replacing vacuum bag

Abstract

The utility model relates to a vacuum bottle capable of replacing a vacuum bag, which aims at solving the technical problems that the stability is poorer due to the poor structural design of an inner bag or a bag of the existing similar product, and the inner bag or the bag is easy to fall out when being opened through a large ring or a middle ring. A bag is arranged in a bottle body of the replaceable vacuum bottle, and a bottle opening external thread of the bottle body is connected with a middle ring internal thread of a middle ring; according to the structural design key points, the shoulder part below the bag opening of the bag is fixedly arranged at the bottle opening of the bottle body and the joint of the middle ring and the bottle opening of the bottle body, meanwhile, bag external threads at the bag opening of the bag extend out of the middle ring and are connected with large ring internal threads of the large ring, and a pump core assembly is arranged at the joint of the bag opening of the bag and the large ring; the pump core assembly is buckled and fixed in a center hole of the large ring; a valve rod of the pump core assembly extends out of the large ring and is connected with a liquid inlet hole of the head cap; meanwhile, protruding pieces are symmetrically arranged on the two sides of the bottom of the bag external thread above the shoulder, and protruding buckling positions are arranged on the outer diameter of the bag external thread of the bag below the protruding pieces respectively.

Description

TECHNICAL FIELD

[0001] The utility model relates to a vacuum bottle, and is a vacuum bottle with replaceable vacuum bag. BACKGROUND

[0002] A vacuum bottle refers to a container capable of isolating gas from the outside temperature or a container capable of isolating external bacteria. The vacuum bottles sold on the market are composed of an elliptical container in the shape of a cylinder and a piston arranged at the bottom. Some vacuum bottles on the market adopt an inner bag structure. For example, a vacuum bottle disclosed in Chinese patent document with the authorization announcement number CN221624388U and the authorization announcement date August 30, 2024, and the utility model name "vacuum bottle with inner bag" includes a bottle body, the bottle body has a collapsible inner bag, the bag opening of the inner bag is a hanging opening part, the hanging opening part is hung on the bottle opening of the bottle body, the bottle opening has a pressing cover, the pressing cover presses the hanging opening part on the bottle opening through a gasket, there is a limiting assembly between the hanging opening part and the gasket to limit the shape change of the hanging opening part, the gasket is an elastic gasket, the hanging opening part includes a ring neck, the ring neck has a hanging ring, the hanging ring is clamped between the gasket and the bottle opening, the gasket applies an elastic force to the hanging ring through the limiting assembly to expand the ring neck to fit the inner wall of the bottle opening. However, the inner bag or bag structure of the above-mentioned product and similar products has poor stability due to poor design, and is easily dropped out when opened through a large circle or a medium circle. SUMMARY

[0003] To overcome the above-mentioned shortcomings, the purpose of the utility model is to provide a vacuum bottle with replaceable vacuum bag in the field, which solves the technical problem that the inner bag or bag structure of the existing similar products has poor stability due to poor design and is easily dropped out when opened through a large circle or a medium circle. The purpose is achieved through the following technical solutions.

[0004] A vacuum bottle with replaceable vacuum bag, the bottle body of the replaceable vacuum bottle is provided with a bag, the bottle opening outer thread of the bottle body is connected with the medium circle inner thread of the medium circle; the structure design points are that the shoulder part below the bag opening of the bag is fixedly arranged at the bottle opening of the bottle body, the medium circle is connected with the bottle opening of the bottle body at the same time, the bag outer thread of the bag opening of the bag is extended out of the medium circle and connected with the large circle inner thread of the large circle, a gasket is arranged below the protruding skirt of the pump body of the pump core assembly at the circle surface below the center hole above the bag opening of the bag at the connection part, a pump core assembly is arranged at the connection part of the bag opening and the large circle, the pump core assembly is buckled and fixed in the center hole of the large circle, the valve rod of the pump core assembly is extended out of the large circle and connected with the liquid inlet hole of the head cap. Thus, the bag body of the above-mentioned bag is a vacuum bag, the shoulder part of the bag is an adapter, the bag outer thread of the bag is a thread ring, the bag is composed of a vacuum bag, an adapter, and a thread ring, the installation and use of the bag are more stable, and the replacement is convenient.

[0005] The protruding tabs are symmetrically arranged on both sides of the bag outer thread bottom above the shoulder of the bag, and the bag outer thread outer diameter of the bag below the tabs is respectively provided with a protruding buckle position, the buckle position is aligned with the tabs and is smaller than the width of the tabs, the inner diameter of the orifice at the corresponding middle circle of the tabs of the bag is respectively provided with a tab slot, the inner diameter of the orifice at the buckle slot below the tab slot is respectively provided with a protruding buckle point, the buckle slot and the tab slot of the middle circle are integrally formed as a stepped slot, the inner diameter of the orifice on both sides of the middle circle is symmetrically provided with a guide slot, and a gap slot is arranged between the tabs and the buckle position of the bag.

[0006] The shoulder of the bag is symmetrically arranged on both sides of the end face below the bag opening.

[0007] The shoulder of the bag is symmetrically arranged on both sides of the end face below the bag opening.

[0008] The pump body bottom suction pipe hole of the pump core assembly in the bag is provided with a guide rod, one end of the guide rod is provided with three equal-angle arranged ribs, and the ribs are communicated with the sleeve opening at the other end of the guide rod through the opening.

[0009] The bottle body is a glass bottle or a plastic bottle. The above-mentioned bottle body is not limited to the above-mentioned materials, and other materials can also be used.

[0010] The utility model discloses a reasonable structure, good bag stability, convenient bag replacement operation, and economic and environmental protection are used, and it is suitable for being used as vacuum bag replacement vacuum bottle, and the structure of similar products is improved. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the sectional view structure schematic diagram of the utility model, and the bag is filled effect in the drawing.

[0012] Figure 2 It is Figure 1 The explosion three-dimensional structure schematic diagram.

[0013] Figure 3 It is Figure 1 The spray head assembly opening state structure schematic diagram, and the arrow is the opening direction of the spray head assembly.

[0014] Figure 4 It isFigure 3 A schematic diagram of the three-dimensional structure of the nozzle assembly in its inverted state after it is assembled and opened.

[0015] Figure 5 yes Figure 3 The diagram shows the structure of the glass bottle in the open state at the assembly point of the bottle body. The arrows in the diagram indicate the opening direction of the middle circle and the bag.

[0016] Figure 6 yes Figure 5 The diagram shows the structure of the sac in its open state, with the arrows indicating the opening direction of the middle circle.

[0017] Figure 7 yes Figure 6 A schematic diagram of the three-dimensional structure.

[0018] Figure 8 yes Figure 7 A schematic diagram of the bottom structure of the middle ring.

[0019] Figure 9 yes Figure 7 The diagram shows the structure after the pouch and middle ring are inserted, with AA section shown in the figure.

[0020] Figure 10 yes Figure 9 A top view of the structure with the pouch and middle ring in the opened and inserted state.

[0021] Figure 11 yes Figure 10 A cross-sectional view of the reverse side at point AA.

[0022] Figure 12 yes Figure 10 A top-view structural diagram showing the structure in a half-loaded state.

[0023] Figure 13 yes Figure 12 A cross-sectional view of the reverse side at point AA.

[0024] Figure 14 yes Figure 12 A top-view structural diagram of the fully loaded state.

[0025] Figure 15 yes Figure 14 A cross-sectional view of the reverse side at point AA.

[0026] Attached figures and their names: 1. Outer cover, 2. Head cap, 3. Pump core assembly, 4. Large ring, 5. Gasket, 6. Bag, 601. Protrusion, 602. Fastener, 603. Shoulder, 604. Rib, 7. Middle ring, 701. Plate groove, 702. Middle ring internal thread, 703. Fastener point, 8. Glass bottle, 9. Guide rod. Implementation

[0027] The structure of this utility model will now be further described with reference to the accompanying drawings. For example... Figures 1-15 As shown, the replacement vacuum bottle has a bag 6 inside. The external thread of the bottle mouth is connected to the internal thread 702 of the middle ring 7. The bottle body is a glass bottle 8. The shoulder 603 below the bag mouth is fixed to the bottle mouth of the bottle body. At the same time, at the connection between the middle ring and the bottle mouth, the external thread of the bag mouth extends out of the middle ring and connects with the internal thread of the large ring 4. At the connection point, a gasket 5 is provided below the raised skirt of the pump body of the pump core assembly at the ring surface below the center hole of the large ring above the bag mouth of the bag. A pump core assembly 3 is provided at the connection between the bag mouth of the bag and the large ring. The pump core assembly is fastened and fixed to the center hole of the large ring. The valve stem of the pump core assembly extends out of the large ring and connects with the liquid inlet of the cap 2. An outer cover 1 is provided on the outside of the cap. The bottom opening of the outer cover fits with the outer diameter of the large ring.

[0028] The aforementioned pouch has symmetrically arranged protruding tabs 601 on both sides of the bottom of the external thread above the shoulder. Below the tabs, the outer diameter of the pouch's external thread has protruding fastening positions 602. These fastening positions are aligned with the tabs and are smaller than the width of the tabs. The inner diameter of the opening at the corresponding middle ring of the pouch's tabs has a slot 701. Below the slot, the inner diameter of the opening at the fastening slot has protruding fastening points 703. The fastening slot of the middle ring is integrally formed with the slot. The stepped groove has symmetrical guide grooves on the inner diameter of the holes on both sides of the middle ring. A gap groove is provided between the protrusion of the bag and the buckle. When the protrusion of the bag and the buckle are aligned with the guide groove at the hole of the middle ring and inserted into it, the gap groove of the bag is screwed into the stepped groove of the middle ring. The protrusion of the bag is screwed into the plate groove of the middle ring. The buckle of the bag passes over the buckle point of the middle ring and stops at the groove on one side of the buckle point. The middle ring and the bag are connected as one piece. The external thread of the bag extends out of the hole of the middle ring.

[0029] The aforementioned bag has symmetrical shoulder protrusions on both sides below the bag opening. Symmetrical raised ribs 604 and side grooves are provided on both sides below the shoulder of the bag, and the raised ribs are aligned with the outer diameter of the bag after filling. A guide rod 9 is provided at the bottom suction hole of the pump body where the pump core assembly is located inside the bag. One end of the guide rod has three ribs arranged at equal angles, and one end of each rib communicates with the sleeve at the other end of the guide rod through an opening.

[0030] The assembly method of this replacement vacuum bottle is as follows: Assemble the nozzle assembly. First, insert the component pump core assembly into the center hole of the large ring from bottom to top, ensuring an interference fit for fixation. Then, put the gasket on the pump core assembly to the bottom, with the inner wall of the gasket interfering with the outer wall of the pump core assembly, and the surface of the gasket sealingly fitting the end face of the pump core assembly. Next, press the cap into the pump core assembly, with the locking rib at the bottom of the cap interfering with the locking groove at the valve stem of the pump core assembly, providing sealing and fixation. Finally, press the guide rod into the pump core assembly, ensuring an interference fit between the locking groove and the locking position of the pump core assembly. This completes the assembly of the component nozzle assembly. To assemble the bottle body, first insert the component bag into the middle ring of the component, ensuring that the protrusion 601 of the bag supports and engages with the groove 701 of the middle ring. The buckle 602 of the bag engages with the buckle groove of the middle ring and extends past the buckle point 703 for fixation. Next, tighten the middle ring thread 702 with the external thread at the bottle mouth of the glass bottle. The shoulder 603 at the end face of the bag supports and engages with the end face of the bottle mouth of the glass bottle. The above-described replacement vacuum bottle assembly uses a quick-release fixing structure between the bag and the middle ring, thus completing the bottle body assembly. Finally, for the finished product assembly, screw the internal thread of the large ring of the nozzle assembly into the external thread of the bag in the bottle body assembly until it reaches the bottom. Then, put the outer cover onto the nozzle assembly. The inner wall rib of the outer cover and the outer wall of the large ring of the nozzle assembly are interference-fitted to form a fixation, thus completing the entire finished product assembly process.

[0031] The replacement process for this vacuum bottle is as follows: First, pull the outer cover out of the assembly, unscrew the nozzle assembly, and remove the bottle assembly; then, unscrew the glass bottle from the bottle assembly, remove the glass bottle, then separate the middle ring from the bag, twist the middle ring and the bag in opposite directions to separate the buckle on the bag from the buckle groove on the middle ring, remove the bag, and finally install the new replacement bag into the middle ring. Reassemble according to the above process to complete the assembly process of the replacement bottle.

[0032] The functional principle of this replacement vacuum bottle is as follows: Based on the functions of the regular vacuum bottle, and taking into account the future green and sustainable concept, the replacement vacuum bottle adds the function of replacement. This function makes good use of the original packaging, only adding a spare bag to realize the secondary use of the outer packaging material and reduce production costs, which is in line with the sustainable concepts of environmental protection, energy conservation and emission reduction.

[0033] In summary, existing refillable vacuum bottles used in daily chemical packaging for skincare products primarily serve as replacement packaging for the inner bottle. The replacement inner bottle assembly typically consists of a piston, bottom cap, inner bottle, and threaded ring. However, this new refillable vacuum bottle differs from existing vacuum bottles on the market, employing a pouch-like refill structure. The replacement pouch comprises a vacuum bag, adapter, and threaded ring. This refillable vacuum bottle achieves cost reduction and efficiency improvement through its overall product structure, which is its most significant design feature. Furthermore, it is convenient to use, highly safe to carry, has a low residue rate, is functionally compact, and boasts a stylish appearance; meeting current market demands for green environmental protection, ease of use, and high efficiency.

Claims

1. A vacuum bottle with a replaceable vacuum bag, wherein the bottle body is provided with a bag (6), and the external thread of the bottle mouth is connected to the internal thread (702) of the middle ring (7); characterized in that The shoulder (603) below the opening of the bag (6) is fixedly set at the bottle mouth of the bottle body, and at the connection between the middle ring (7) and the bottle mouth of the bottle body, the external thread of the bag at the opening of the bag extends out of the middle ring and connects with the internal thread of the large ring (4). A gasket (5) is provided at the connection. A pump core assembly (3) is provided at the connection between the opening of the bag and the large ring. The pump core assembly is fastened and fixed to the center hole of the large ring. The valve stem of the pump core assembly extends out of the large ring and connects with the liquid inlet of the cap (2).

2. The vacuum bag replacement vacuum bottle according to claim 1, characterized in that... The pouch (6) has symmetrically arranged protruding tabs (601) on both sides of the bottom of the external thread above the shoulder (603). Below the tabs, the outer diameter of the pouch's external thread has protruding fasteners (602). These fasteners are aligned with the tabs and are smaller than their width. The inner diameter of the opening at the corresponding middle ring (7) of the pouch's tabs has a groove (701). Below the groove, the inner diameter of the opening at the fastener groove has protruding fastening points (703). The middle ring... The buckle groove and the plate groove are integrated into a stepped groove. The inner diameter of the hole of the middle ring on both sides of the stepped groove is symmetrically provided with guide grooves. There is a gap groove between the protrusion of the bag and the buckle. When the protrusion of the bag and the buckle are aligned with the guide groove at the hole of the middle ring and inserted into it, the gap groove of the bag is screwed into the stepped groove of the middle ring. The protrusion of the bag fits into the plate groove of the middle ring and is screwed in. The buckle of the bag passes over the buckle point of the middle ring and stops at the groove on one side of the buckle point. The middle ring and the bag are connected as one piece. The external thread of the bag extends out of the hole of the middle ring.

3. The vacuum bag replacement vacuum bottle according to claim 1, characterized in that... The shoulder (603) of the bag (6) has symmetrical protrusions on both sides of the lower end face of the bag opening.

4. The vacuum bag replacement vacuum bottle according to claim 3, characterized in that... The shoulder (6) of the bag (6) is provided with symmetrical ribs (604) and side grooves on both sides below the shoulder (603), and the ribs are aligned with the outer diameter of the bag after it is filled.

5. The vacuum bag replacement vacuum bottle according to claim 1, characterized in that... The pump core assembly (3) inside the bag (6) has a guide rod (9) at the bottom suction pipe hole of the pump body. One end of the guide rod has three ribs arranged at equal angles. One end of the ribs is connected to the sleeve at the other end of the guide rod through an opening.

6. The vacuum bag replacement vacuum bottle according to claim 1, characterized in that... The bottle body is a glass bottle (8) or a plastic bottle.

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