Vacuum bottle with inner bottle

Abstract

The utility model relates to a vacuum bottle with an inner bottle, which is designed for solving the technical problems that the inner bottle of the existing similar product is not good enough in structural design and can be used only by arranging a large piston in the inner bottle, and the inner bottle, a ring seat, a pump core assembly and other parts need to be further improved and perfected. An inner bottle is arranged in an outer bottle of the vacuum bottle, and the vacuum bottle is characterized in that the inner bottle is a first inner bottle or a second inner bottle integrally formed by an elastic bottle body, the outer diameter of the bottle body of the first inner bottle is in a corrugated pipe shape, the bottle body of the second inner bottle is in an oval shape, and outer threads are arranged on bottle openings in the tops of the first inner bottle and the second inner bottle in an upward protruding mode. A large piston does not need to be arranged in the inner bottle; the spring is arranged on the outer diameter of the extending end of a piston rod in a cavity above the sleeved position of the upper pump body and the lower pump body, the sealing elastic sleeve in the lower pump body can also be fixed to an elastic sleeve groove in the bottom in the lower pump body in a buckled mode, and an elastic sleeve hole is formed in the middle of the sealed position of the bottom in the lower pump body. A silica gel gasket which is in interference abutting sealing is arranged between the top of the outer diameter of an orifice at the center hole of the ring seat and the bottom of the lower pump body.

Description

Technical Field

[0001] The utility model relates to a vacuum bottle without a large piston structure, which is a vacuum bottle with an inner bottle. Background Art

[0002] A vacuum bottle refers to a container that can isolate gas from the outside temperature or isolate external bacteria. Existing vacuum bottles are generally composed of a cylindrical or ellipsoidal container plus a piston placed at the bottom. Its working principle is mainly to use the contraction force of the spring, and not let air enter the bottle to create a vacuum state, and use atmospheric pressure to push the piston at the bottom of the bottle forward. This type of vacuum bottle, such as the application number 202120566115.2 disclosed in the Chinese patent document, the authorization announcement date is 2021.10.29, and the utility model name is "a new type of vacuum bottle"; other vacuum bottles omit the piston setting in the bottle body and adopt an inner and outer bottle structure design, such as the application number 202221913193.6 disclosed in the Chinese patent document, the authorization announcement date is 2022.11.18, and the utility model name is "a piston-free vacuum bottle body"; but there are few products that combine the above two product structure designs. At the same time, the existing similar products such as the inner bottle, ring seat, pump core assembly and other components need to be further improved and perfected, so as to facilitate production and assembly and reduce production costs. Summary of the invention

[0003] In order to overcome the above shortcomings, the purpose of the utility model is to provide a vacuum bottle with an inner bottle in the art, so as to solve the technical problems that the inner bottle structure design of the existing similar products is poor, a large piston needs to be set in the inner bottle before it can be used, and the inner bottle, ring seat, pump core assembly and other components need to be further improved and perfected. The purpose is achieved through the following technical solutions.

[0004] A vacuum bottle with an inner bottle, wherein the inner bottle is arranged inside the outer bottle of the vacuum bottle, a large ring is fixedly fastened at the bottle mouth of the outer bottle, a pump core assembly is protruded upward in the middle groove at the top of the center hole of the large ring, an internal thread is arranged in the connection groove protruding at the bottom of the center hole of the large ring, the inner bottle is connected to the internal thread of the large ring through the external thread at the bottle mouth, a sealing gasket is arranged at the connection, and the valve stem extending out of the pump core assembly is connected to the duckbill; the key points of its structural design are that the inner bottle is a first inner bottle or a second inner bottle integrally formed with an elastic bottle body, the outer diameter of the bottle body of the first inner bottle is in the shape of a bellows, the bottle body of the second inner bottle is elliptical, and the top bottle mouths of the first inner bottle and the second inner bottle are protruded upward and provided with the external thread. The bottle bodies of the first inner bottle and the second inner bottle are made by blow molding and the like, and the bottle bodies are relatively thin, so that they are easy to deform due to the pressure change in the bottle body, so the large piston can be omitted in the inner bottle.

[0005] The large ring includes a ring seat and a ring cover, the pump core assembly is limited and fixed in the inner cavity formed by the ring seat and the ring cover, and the center hole is set in the middle of the ring seat; the pump body of the pump core assembly includes an upper pump body and a lower pump body, one end of the lower pump body is buckled and fixed in the middle groove of the ring seat, a sealing elastic sleeve is provided at the bottom of the middle groove of the ring seat at the buckling and fixing position, the elastic sheet in the middle of the sealing elastic sleeve is aligned and sealed with the center hole of the ring seat, an integrally formed elastic strip is provided in the outer diameter circle hole of the elastic sheet of the sealing elastic sleeve, the other end of the lower pump body is fitted with one end of the upper pump body, and the rib column raised on the outer diameter of the upper pump body is limited in the inner cavity and extends out of the ring cover. The other end of the upper pump body is fitted with a duckbill, and the duckbill presses to drive the upper pump body and the valve stem to move up and down; the valve stem is a piston rod, and a piston leaf is provided at one end of the rod portion of the piston rod, and the rod portion of the piston rod and the piston leaf are integrally injection molded, and a ball is provided at the liquid inlet hole at the bottom of the upper chamber in the middle channel of the piston rod, and the other end of the rod portion of the piston rod extends out of the lower pump body and is connected to the duckbill, and a spring is provided on the outer diameter of the rod portion of the piston rod at the extended position, and one end of the spring abuts against the lower pump body, and the other end of the spring abuts against the top of the upper pump body, and the piston leaf of the piston rod is limited to the lower pump body, and the outer diameter of the piston leaf of the piston rod abuts against the inner wall of the lower pump body for sealing. The above is a specific structural embodiment of a pump core assembly, and it can also adopt an existing similar pump core assembly structure to meet the use of the vacuum bottle.

[0006] One end of the spring is limited to abut against the upper spring groove on the top of the upper pump body, and the other end of the spring is limited to abut against the lower spring groove on the top of the lower pump body.

[0007] The sealing elastic sleeve buckle is fixed to the elastic sleeve groove at the bottom of the lower pump body, and an elastic sleeve hole is provided in the middle of the sealing part at the bottom of the lower pump body. The elastic sheet of the sealing elastic sleeve is located in the elastic sleeve hole of the lower pump body, and the elastic sheet part is extended to align with the raised opening of the center hole of the ring seat below for sealing, and a silicone gasket for interference fit and sealing is provided between the top of the outer diameter of the opening of the center hole of the ring seat and the bottom of the lower pump body. The above structure facilitates the fixing of the sealing elastic sleeve in the lower pump body, and facilitates the assembly of the lower pump body and the upper pump body as a whole, thereby improving the overall production and assembly efficiency of the product.

[0008] The hole below the top center hole of the inner thread of the ring seat is provided with a downward conical wall-breaking rib, which facilitates the inner bottle to be screwed into the ring seat and pierces the sealing sheet at the top of the inner bottle.

[0009] An open guide groove is arranged at the notch of the middle groove at the top of the ring seat, and the rib column of the upper pump body is arranged correspondingly in the guide groove of the ring seat.

[0010] The guide groove opening of the ring seat is provided with a limiting edge on one side, and a limiting groove is provided at the end of the limiting edge. Therefore, when the duckbill is rotated to drive the rib column of the upper pump body to slide from the opening of the guide groove to the limiting groove of the limiting edge, the duckbill limit lock cannot be pressed down.

[0011] An open positioning groove is arranged at the bottom sleeve of the duckbill corresponding to the rib column of the upper pump body, and the positioning groove of the duckbill is inserted into the rib column of the upper pump body, so that the upper pump body and the duckbill are connected as a whole.

[0012] A locking plug is provided on the outer diameter of the duckbill or the upper pump body below the fitting of the duckbill and the upper pump body, one end of the locking plug is snap-fastened to the outer diameter of the duckbill or the upper pump body, and the plug head at the other end of the locking plug blocks the liquid outlet of the duckbill.

[0013] The utility model has reasonable structural design, is convenient to use and produce, and has good sealing and stability. In particular, the inner bottle is easy to produce and has low production cost. The utility model is suitable for use as a vacuum bottle with an inner bottle without a large piston, and is a structural improvement of similar products. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic cross-sectional structure diagram of the utility model, in which the dotted line represents the second inner bottle and the A portion is framed.

[0015] Figure 2 yes Figure 1 Schematic diagram of the enlarged structure of part A.

[0016] Figure 3 yes Figure 1 A schematic diagram of a partial explosion structure, in which the outer bottle, the first inner bottle and the second inner bottle are omitted.

[0017] Figure 4 yes Figure 3 Schematic diagram of the enlarged structure of the bottom of the ring seat.

[0018] Figure 5 yes Figure 1 Schematic diagram of the three-dimensional structure of the first inner bottle in use state.

[0019] Figure 6 yes Figure 1 Schematic diagram of the three-dimensional structure of the second inner bottle in use state.

[0020] Figure 7 yes Figure 1 Schematic diagram of the improved cross-sectional structure.

[0021] Serial numbers and names of the accompanying drawings: 1. Outer bottle, 2. First inner bottle, 3. Ring seat, 301. Center hole, 302. Wall-breaking ribs, 303. Guide groove, 4. Lower pump body, 5. Ring cover, 6. Piston rod, 7. Upper pump body, 701. Rib column, 8. Duckbill, 801. Positioning groove, 9. Spring, 10. Ball, 11. Locking plug, 12. Sealing spring sleeve, 13. Sealing gasket, 14. Second inner bottle, 15. Silicone gasket. Implementation

[0022] Now, in conjunction with the accompanying drawings, the structure of the utility model is further described. Figure 1-Figure 6 As shown, the inner bottle is arranged inside the outer bottle 1 of the vacuum bottle, a large ring is fixedly fastened at the bottle mouth of the outer bottle, a pump core assembly is protruded upward in the middle groove at the top of the center hole 301 of the large ring, an internal thread is arranged in the connection groove protruding at the bottom of the center hole of the large ring, the inner bottle is connected with the internal thread of the large ring through the external thread at the bottle mouth, a sealing gasket 13 is arranged at the connection, and the valve stem extending out of the pump core assembly is connected with the duckbill 8. The above-mentioned inner bottle is a first inner bottle 2 or a second inner bottle 14 integrally formed with an elastic bottle body, the outer diameter of the bottle body of the first inner bottle is in the shape of a corrugated tube, and the bottle body of the second inner bottle is elliptical, and the top bottle mouths of the first inner bottle and the second inner bottle are protruded upward and provided with the external thread.

[0023] Its specific structure is as follows: the above-mentioned large ring includes a ring seat 3 and a ring cover 5, the pump core assembly is limited and fixed in the inner cavity formed by the ring seat and the ring cover, and the center hole is set in the middle of the ring seat; the pump body of the pump core assembly includes an upper pump body 7 and a lower pump body 4, one end of the lower pump body is buckled and fixed in the middle groove of the ring seat, and a sealing elastic sleeve 12 is provided at the bottom of the middle groove of the ring seat at the buckling and fixing position, the elastic sheet in the middle of the sealing elastic sleeve is aligned and sealed with the center hole of the ring seat, and an integrally formed elastic strip is provided in the outer diameter circle hole of the elastic sheet of the sealing elastic sleeve, the other end of the lower pump body is fitted with one end of the upper pump body, and the rib column 701 raised on the outer diameter of the upper pump body is limited to the inner cavity In the figure, the other end of the upper pump body extending out of the ring cover is fitted with the duckbill, and the duckbill presses to drive the upper pump body and the valve stem to move up and down; the valve stem is a piston rod 6, and a piston leaf is provided at one end of the rod portion of the piston rod, and the rod portion of the piston rod and the piston leaf are integrally injection-molded, and a ball 10 is provided at the liquid inlet hole at the bottom of the upper chamber in the middle channel of the piston rod, and the other end of the rod portion of the piston rod extends out of the lower pump body and is connected to the duckbill, and a spring 9 is provided on the outer diameter of the rod portion of the piston rod at the extended position, one end of the spring is against the lower pump body, and the other end of the spring is against the top of the upper pump body, the piston leaf limit of the piston rod is located in the lower pump body, and the outer diameter of the piston leaf of the piston rod is against the inner wall of the lower pump body for sealing.

[0024] At the same time, one end of the spring is limited against the upper spring groove at the top of the upper pump body, and the other end of the spring is limited against the lower spring groove at the top of the lower pump body. A downwardly tapered wall-breaking rib 302 is provided at the opening below the center hole at the top of the internal thread of the ring seat. An open guide groove 303 is provided at the notch at the middle groove at the top of the ring seat, and the rib column 701 of the upper pump body is correspondingly arranged in the guide groove of the ring seat; a limiting edge is provided on one side of the opening of the guide groove of the ring seat, and a limiting groove is provided at the end of the limiting edge. An open positioning groove 801 is provided at the bottom sleeve of the duckbill corresponding to the rib column of the upper pump body, and the positioning groove of the duckbill is inserted into the rib column of the upper pump body, and the upper pump body and the duckbill are connected as a whole. A locking plug 11 is provided at the outer diameter of the duckbill or the upper pump body below the duckbill and the upper pump body, and one end of the locking plug is fixed to the outer diameter of the duckbill or the upper pump body, and the plug head at the other end of the locking plug blocks the liquid outlet of the duckbill.

[0025] When in use, open the outer bottle, screw the first inner bottle or the second inner bottle with the sealing piece directly into the ring seat, install the outer bottle, open the plug of the locking plug on the duckbill, remove the locking plug, turn the duckbill to the unlocked state, press the duckbill and squeeze out the liquid.

[0026] According to the above structural characteristics, such as Figure 7 As shown, the sealing sleeve buckle can be further fixed to the sleeve groove at the bottom of the lower pump body, and a sleeve hole is provided in the middle of the sealing portion at the bottom of the lower pump body. The elastic sheet of the sealing sleeve is located in the sleeve hole of the lower pump body, and the elastic sheet partially extends out to align with the raised opening of the center hole of the ring seat below for sealing, and a silicone gasket 15 for interference sealing is provided between the top of the outer diameter of the opening of the center hole of the ring seat and the bottom of the lower pump body.

Claims

1. A vacuum bottle with an inner bottle, wherein the inner bottle is arranged inside an outer bottle (1) of the vacuum bottle, a large ring is fixedly provided at the bottle mouth of the outer bottle, a pump core assembly is provided in a middle groove at the top of a center hole (301) of the large ring, and an internal thread is provided in a connecting groove at the bottom of the center hole of the large ring, the inner bottle is connected to the internal thread of the large ring through the external thread at the bottle mouth, a sealing gasket (13) is provided at the connection, and a valve stem extending out of the pump core assembly is connected to a duckbill (8); characterized in that The inner bottle is a first inner bottle (2) or a second inner bottle (14) formed integrally with an elastic bottle body, the outer diameter of the bottle body of the first inner bottle is in the shape of a bellows, the bottle body of the second inner bottle is in an elliptical shape, and the tops of the first inner bottle and the second inner bottle are upwardly protruding and provided with the external thread.

2. The vacuum bottle with inner bottle according to claim 1, characterized in that The large ring includes a ring seat (3) and a ring cover (5), the pump core assembly is limited and fixed in the inner cavity formed by the ring seat and the ring cover, and the center hole (301) is arranged in the middle of the ring seat; the pump body of the pump core assembly includes an upper pump body (7) and a lower pump body (4), one end of the lower pump body is buckled and fixed in the middle groove of the ring seat, and a sealing elastic sleeve (12) is provided at the bottom of the middle groove of the ring seat at the buckled and fixed position, the elastic sheet in the middle of the sealing elastic sleeve is aligned and sealed with the center hole of the ring seat, and an integrally formed elastic strip is provided in the outer diameter circle hole of the elastic sheet of the sealing elastic sleeve, the other end of the lower pump body is buckled with one end of the upper pump body, and the rib column (701) protruding on the outer diameter of the upper pump body is limited in the inner cavity The other end of the upper pump body extending out of the ring cover is fitted with a duckbill (8), and the duckbill presses to drive the upper pump body and the valve stem to move up and down; the valve stem is a piston rod (6), and a piston leaf is provided at one end of the rod portion of the piston rod, and the rod portion of the piston rod and the piston leaf are integrally injection molded, and a ball (10) is provided at the liquid inlet hole at the bottom of the upper chamber in the middle channel of the piston rod, and the other end of the rod portion of the piston rod extends out of the lower pump body and is connected to the duckbill, and a spring (9) is provided on the outer diameter of the rod portion of the piston rod at the extended position, one end of the spring is against the lower pump body, and the other end of the spring is against the top of the upper pump body, and the piston leaf of the piston rod is limited to be located in the lower pump body, and the outer diameter of the piston leaf of the piston rod is sealed against the inner wall of the lower pump body.

3. The vacuum bottle with inner bottle according to claim 2, characterized in that One end of the spring (9) is limited to abut against an upper spring groove at the top of the upper pump body (7), and the other end of the spring is limited to abut against a lower spring groove at the top of the lower pump body (4).

4. The vacuum bottle with inner bottle according to claim 2, characterized in that The sealing sleeve (12) is snap-fastened to the sleeve groove at the bottom of the lower pump body (4); a sleeve hole is provided in the middle of the sealing portion at the bottom of the lower pump body; an elastic sheet of the sealing sleeve is located in the sleeve hole of the lower pump body; the elastic sheet partially extends out to align with the raised opening of the center hole of the lower ring seat (3) for sealing; a silicone gasket (15) for interference fit and sealing is provided between the top of the outer diameter of the opening of the center hole of the ring seat and the bottom of the lower pump body.

5. The vacuum bottle with inner bottle according to claim 4, characterized in that A downwardly conically protruding wall-breaking rib (302) is provided at the opening below the center hole (301) at the top of the internal thread of the ring seat (3).

6. The vacuum bottle with inner bottle according to claim 4, characterized in that An open guide groove (303) is provided at the middle groove of the top of the ring seat (3), and the rib column (701) of the upper pump body (7) is arranged correspondingly in the guide groove of the ring seat.

7. The vacuum bottle with inner bottle according to claim 6, characterized in that A limiting edge is provided on one side of the opening of the guide groove (303) of the ring seat (3), and a limiting groove is provided at the end of the limiting edge.

8. The vacuum bottle with inner bottle according to claim 6, characterized in that An open positioning groove (801) is provided at the bottom sleeve of the duckbill (8) corresponding to the rib column (701) of the upper pump body (7), and the positioning groove of the duckbill is inserted into the rib column of the upper pump body, so that the upper pump body and the duckbill are connected as a whole.

9. The vacuum bottle with inner bottle according to claim 1, characterized in that A locking plug (11) is provided on the outer diameter of the duckbill or the upper pump body below the fitting of the duckbill (8) and the upper pump body (7), one end of the locking plug is snap-fastened to the outer diameter of the duckbill or the upper pump body, and the plug head at the other end of the locking plug blocks the liquid outlet of the duckbill.

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