Inner plug of vacuum cup

Abstract

The inner plug comprises an inner plug body and a top plug, the inner plug body is a hollow cavity with an opening in the upper end, a connecting cylinder is arranged in the upper portion of the inner plug body through a plurality of ribs, a water flowing channel is formed between the side walls of every two adjacent ribs, and internal threads are arranged on the inner wall of the connecting cylinder. A water inlet hole communicated with the water flowing channel is formed in the bottom wall of the inner plug body, a connecting column extending downwards is arranged on the surface of the lower side of the top plug, and external threads matched with the internal threads of the connecting cylinder are arranged on the outer wall of the connecting column. The device is convenient to operate, simple in structure, high in reliability, easy to maintain, convenient and fast to assemble, low in cost and the like.

Description

Technical Field

[0001] This utility model relates to the field of cups and cups, and in particular to an inner stopper for a thermos cup. Background Technology

[0002] Chinese invention patent specification CN118203229A discloses a rotating water outlet inner plug, whose structure is composed of components such as ribs, fixed cylinder, inner rotating body, outer rotating body, sliding groove, fixed block, ball, sliding cylinder, first spiral surface, abutment groove, second spiral surface, movable plug, support plug, return spring, and ladder to realize the opening and closing of the water flow channel.

[0003] The above structure has problems such as too many parts, complex connections leading to reduced reliability, high maintenance difficulty, difficult assembly, and high cost. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a thermos cup inner plug with a simple structure and few parts. It is not only easy to operate, but also has the advantages of high reliability, easy maintenance, convenient assembly and low cost.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A thermos cup inner stopper includes an inner stopper body and a top stopper. The inner stopper body is a hollow cavity with an open top. A connecting cylinder is embedded in the upper part of the inner stopper body through several ribs. A water flow channel is formed between the side walls of two adjacent ribs. The inner wall of the connecting cylinder is provided with an internal thread. A water inlet hole communicating with the water flow channel is opened on the bottom wall of the inner stopper body. A connecting post extending downward is provided on the lower surface of the top stopper. The outer wall of the connecting post is provided with an external thread that mates with the internal thread of the connecting cylinder. The lower end of the connecting post passes through the connecting cylinder and is fitted with a sealing sleeve. When the top stopper is rotated, the lower surface of the top stopper and the sealing sleeve abut against or disengage from the upper surface of the inner stopper body and the water inlet hole, respectively.

[0007] Furthermore, the lower end of the inner wall of the connecting cylinder is provided with an annular stop flange, the internal thread on the connecting cylinder spirally passes through the annular stop flange, the lower end of the external thread on the connecting column passes through the annular stop flange, and the outer wall of the connecting column is provided with an annular abutment flange below the external thread that cooperates with the annular stop flange.

[0008] Furthermore, the upper end of the annular stop flange has a guide slope that slopes inward from top to bottom, and the lower end of the annular abutment flange has a guide surface with the same inclination angle as the guide slope.

[0009] Further, the outer diameter size of the annular abutting flange is greater than the inner diameter size of the annular stop flange, the inner diameter size of the annular stop flange is greater than the outer thread bottom diameter size, and the outer diameter size of the annular abutting flange is smaller than the inner thread bottom diameter size; the height sizes of the annular stop flange and the annular abutting flange are both smaller than the inner thread bottom length size.

[0010] Further, the inner thread and the outer thread are multi-start threads.

[0011] Further, the top plug is integrally formed with the connecting column.

[0012] Further, the sealing sleeve is a hollow cavity with an open upper end, the annular protrusion is arranged on the inner wall of the upper end of the sealing sleeve, the connecting column is further provided with an annular clamping groove below the annular abutting flange, and the annular protrusion on the sealing sleeve is buckled in the annular clamping groove.

[0013] Further, the inner plug body comprises an upper inner plug body and a lower inner plug body, the connecting cylinder is arranged in the upper inner plug body, the water inlet hole is arranged on the bottom wall of the lower inner plug body, and the lower end of the upper inner plug body is detachably connected or fixedly connected with the lower inner plug body.

[0014] Further, the inner plug body is connected with a filter cover at the lower end, the inner plug of the vacuum cup further comprises an annular magnet, an annular groove for accommodating the annular magnet is arranged on the upper end surface of the top plug, the top plug is provided with a stainless steel edge, and the upper end of the inner plug body is provided with a stainless steel edge.

[0015] Further, the inner plug of the vacuum cup further comprises a mechanical thermometer connected with a probe, a first accommodating cavity for accommodating the mechanical thermometer is arranged on the upper end surface of the top plug, a through hole for the probe to pass through the connecting column is arranged on the bottom wall of the first accommodating cavity, and the probe is arranged to pass through the through hole, the sealing sleeve and the filter cover.

[0016] Compared with the prior art, the inner plug of the vacuum cup has the following beneficial effects:

[0017] In the inner plug of the vacuum cup, the inner plug body is threadedly connected with the top plug, the water flow channel can be opened and closed by rotating the top plug, the inner plug of the vacuum cup is convenient to operate and simple in structure, and has the advantages of high reliability, easy maintenance, convenient assembly and low cost. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a sectional view of the inner plug of the vacuum cup.

[0019] Figure 2 is a sectional view of the top plug in the inner plug of the vacuum cup.

[0020] Figure 3It is the internal plug upper body section view schematic diagram in the utility model.

[0021] Figure 4 It is the internal plug upper body plan view schematic diagram in the utility model.

[0022] Figure 5 It is the internal plug three-dimensional schematic diagram of the utility model. DETAILED DESCRIPTION

[0023] The utility model will be further explained in detail in connection with the embodiments given below with reference to the drawings.

[0024] As Figures 1 to 5 shown, the internal plug of the utility model embodiment, including internal plug body 1 and plug 2, internal plug body 1 is the hollow cavity of upper end opening, and the upper portion of internal plug body 1 is inbuilt with connecting cylinder 12 through several rib strips 11, and the lateral wall between adjacent two rib strips 11 forms water channel 13, and the inner wall of connecting cylinder 12 is equipped with internal thread 121, and the bottom wall of internal plug body 1 is equipped with water inlet hole 14 that is communicated with water channel 13, and the lower side surface of plug 2 is equipped with the connecting column 21 that extends downward, and the outer wall of connecting column 21 is equipped with the external thread 211 that cooperates with the internal thread 121 of connecting cylinder 12, and the lower end of connecting column 21 passes through connecting cylinder 12 and is equipped with sealing sleeve 22, when rotating plug 2, the lower side surface of plug 2 and sealing sleeve 22 respectively with the upper surface of internal plug body 1 and water inlet hole 14 abut or separate.

[0025] The internal plug body 1 and plug 2 of the utility model are operated as follows:

[0026] Rotating plug 2, through the action of internal thread 121 in connecting cylinder 12 and external thread 211 in connecting column 21, promotes the lower side surface of plug 2 and sealing sleeve 22 to move downward and respectively with the upper surface of internal plug body 1 and water inlet hole 14 abut, to this realization water channel 13 is closed, and similarly, by reversing the rotation of plug 2, promotes the lower side surface of plug 2 and sealing sleeve 22 to move upward and respectively with the upper surface of internal plug body 1 and water inlet hole 14 separate, to this realization water channel 13 is opened, therefore, the internal plug of the utility model cup structure is simple, and the parts are few, and the operation is simple, and it brings the assembly convenient, cost low and other advantages for it.

[0027] As described above, the lower end of the inner wall of connecting cylinder 12 is equipped with annular stop flange 122, the internal thread 121 on connecting cylinder 12 spirally penetrates annular stop flange 122, the lower end of the external thread 211 on connecting column 21 penetrates annular stop flange 122, and the outer wall of connecting column 21 is equipped with annular abutting flange 212 that cooperates with annular stop flange 122 below external thread 211.

[0028] As described above, the upper end of the annular stop flange 122 has a guide slope 1221 inclined inward from top to bottom, and the lower end of the annular abutting flange 212 has a guide surface 2121 with the same inclination as the guide slope 1221, so that the lower end of the annular abutting flange 212 in the connecting column 21 can be more smoothly screwed into the position below the annular stop flange 122 in the connecting cylinder 12 by the cooperation of the guide surface 2121 and the guide slope 1221.

[0029] As described above, the outer diameter of the annular abutting flange 212 is larger than the inner diameter of the annular stop flange 122, so that the inner plug body 1 and the top plug 2 cannot be separated. The inner diameter of the annular stop flange 122 is larger than the bottom diameter of the external thread 211, so that the inner diameter of the annular stop flange 122 does not interfere with the bottom diameter of the external thread 211; the outer diameter of the annular abutting flange 212 is smaller than the bottom diameter of the internal thread 121, so that the outer diameter of the annular abutting flange 212 does not interfere with the bottom diameter of the internal thread 121; the height of the annular stop flange 122 and the annular abutting flange 212 is smaller than the length of the bottom of the internal thread 121, so that the annular stop flange 122 and the annular abutting flange 212 do not interfere with the external thread 211 in the pitch direction and the internal thread 121 in the pitch direction, respectively.

[0030] As described above, the internal thread 121 and the external thread 211 are multi-start threads with increased lead, thereby improving transmission efficiency. Preferably, the internal thread 121 and the external thread 211 are triple-start threads.

[0031] As described above, the top plug 2 is integrally formed with the connecting column 21, thereby helping to reduce costs and increase efficiency.

[0032] As described above, the sealing sleeve 22 is a hollow cavity with an open upper end, and the sealing sleeve 22 has an annular protrusion 221 on the inner wall of the upper end. The connecting column 21 further has an annular clamping groove 213 below the annular abutting flange 212. The annular protrusion 221 on the sealing sleeve 22 is clamped in the annular clamping groove 213, thereby making the connection between the sealing sleeve 22 and the connecting column 21 more secure.

[0033] As described above, the inner plug body 1 includes an upper inner plug body 100 and a lower inner plug body 200, thereby facilitating the processing and manufacturing of the inner plug body 1. The connecting cylinder 12 is built into the upper inner plug body 100, and the water inlet hole 14 is located on the bottom wall of the lower inner plug body 200. The lower end of the upper inner plug body 100 is detachably connected or fixedly connected to the lower inner plug body 200. The detachable connection can be, for example, a threaded connection, and the fixed connection can be, for example, welding.

[0034] As described above, the filter cover 3 is connected to the lower end of the inner plug body 1, which can filter tea residue and make tea clearer, so as to improve the taste and experience when drinking; the inner plug of the vacuum cup further comprises the annular magnet 6, and the top plug 2 is provided with the annular groove 25 on the upper end surface for accommodating the annular magnet 6; the top plug 2 is provided with the stainless steel edge, and the outer side of the upper end of the inner plug body is provided with the stainless steel edge, so that the inner plug body is more wear-resistant and the appearance is more beautiful. The top plug 2 and the inner plug body 1 are both plastic structural members.

[0035] As described above, the inner plug of the vacuum cup further comprises the mechanical thermometer 5 connected with the probe 4, the top plug 2 is provided with the first cavity 23 on the upper end surface for accommodating the mechanical thermometer 5, the bottom wall of the first cavity 23 is provided with the through hole 24 for the probe 4 to pass through the connecting column 21, the end of the probe 4 away from the mechanical thermometer 5 passes through the through hole 24, the sealing sleeve 22 and the filter cover 3, and the user can know the water temperature in the vacuum cup through the mechanical thermometer 5, so as to prevent scalding.

[0036] The above is only a preferred embodiment of the present application, and cannot limit the scope of the present application, that is, any simple equivalent change and modification made according to the patent application range and the description of the present application still belongs to the scope of the present application.

Claims

1. A vacuum flask inner, comprising an inner body and a top plug, characterised in that: The inner plug body is a hollow cavity with an open upper end, a connecting cylinder is arranged in the upper part of the inner plug body through a plurality of ribs, a water flow channel is formed between the side walls of adjacent two ribs, an inner thread is arranged on the inner wall of the connecting cylinder, a water inlet hole is arranged on the bottom wall of the inner plug body and communicates with the water flow channel, a connecting column extending downward is arranged on the lower side surface of the top plug, an outer thread matched with the inner thread of the connecting cylinder is arranged on the outer wall of the connecting column, the lower end of the connecting column penetrates through the connecting cylinder and is sleeved with a sealing sleeve, and the lower side surface of the top plug and the sealing sleeve are in contact or separated from the upper surface of the inner plug body and the water inlet hole when the top plug is rotated.

2. The inner lid of the vacuum cup according to claim 1, characterized in that: An annular stop flange is arranged at the lower end of the inner wall of the connecting cylinder, the inner thread on the connecting cylinder spirally penetrates through the annular stop flange, the lower end of the outer thread on the connecting column penetrates through the annular stop flange, and an annular abutting flange matched with the annular stop flange is arranged below the outer thread on the outer wall of the connecting column.

3. The inner lid of a vacuum cup according to claim 2, characterized in that: The upper end of the annular stop flange has a guide inclined surface inclined inward from top to bottom, and the lower end of the annular abutting flange has a guide-in surface with the same inclination angle as the guide inclined surface.

4. The inner lid of claim 3, wherein: The outer diameter size of the annular abutting flange is greater than the inner diameter size of the annular stop flange, the inner diameter size of the annular stop flange is greater than the bottom diameter size of the outer thread, and the outer diameter size of the annular abutting flange is less than the bottom diameter size of the inner thread; the height sizes of the annular stop flange and the annular abutting flange are both less than the length size of the thread bottom.

5. A mug inner plug according to claim 1 or 2 or 3 or 4, characterized in that: The inner thread and the outer thread are multi-start threads.

6. The inner lid of a vacuum cup according to claim 1, characterized in that: The top plug and the connecting column are integrally formed.

7. The inner lid of a vacuum cup according to claim 1, characterized in that: The sealing sleeve is a hollow cavity with an open upper end, the upper end inner wall of the sealing sleeve has an annular protrusion, the outer wall of the connecting column below the annular abutting flange is further provided with an annular clamping groove, and the annular protrusion on the sealing sleeve is clamped in the annular clamping groove.

8. The inner lid of a vacuum cup according to claim 1, characterized in that: The inner plug body includes an upper inner plug body and a lower inner plug body, the connecting cylinder is arranged in the upper inner plug body, the water inlet hole is arranged on the bottom wall of the lower inner plug body, and the lower end of the upper inner plug body is detachably connected or fixedly connected with the lower inner plug body.

9. The inner lid of a vacuum cup according to claim 1, characterized in that: A filter cover is connected to the lower end of the inner plug body, the inner plug of the vacuum cup further includes an annular magnet, an annular groove for accommodating the annular magnet is arranged on the upper end surface of the top plug, the top plug is provided with a stainless steel edge, and the upper end of the inner plug body is provided with a stainless steel edge on the outer side.

10. The inner lid of a vacuum cup according to claim 9, characterized in that: The inner plug of the vacuum cup further includes a mechanical thermometer connected with a probe, a first accommodating cavity for accommodating the mechanical thermometer is arranged on the upper end surface of the top plug, a through hole for the probe to penetrate through the connecting column is arranged on the bottom wall of the first accommodating cavity, and the end of the probe away from the mechanical thermometer penetrates through the through hole, the sealing sleeve and the filter cover.

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