Thermos lid spring switch

Abstract

A spring switch for an insulated container lid includes: a top tube, a support tube, a sliding groove tube, a movable plug spring, a movable plug, a stopcock, a push rod spring, a movable plug shaft seal ring, and a movable plug seal ring. A movable plug spring is located between the support tube and the movable plug. The movable plug is fitted with the movable plug shaft seal ring and the movable plug seal ring in sequence. The movable plug is mounted on the axis of the stopcock. A push rod spring is fitted onto the movable plug. A retaining ring is located at the top of the movable plug. The top tube and the support tube are sequentially fitted into the sliding groove tube. The bottom of the top tube has a ring of top tube ribs, and the outer side of the bottom of the support tube has a ring of limiting ribs. The beveled teeth on the top tube ribs cooperate with the beveled teeth on the limiting ribs. The inner side of the sliding groove tube has low-limit beveled teeth, and the upper part has a high-limit retaining groove. The advantages of this invention are: good modular component versatility, solving product noise or leakage problems, simple structure, no need to blindly increase component precision, reduced production costs, and guaranteed product quality.

Description

Technical Field

[0001] This utility model relates to an insulated container, and more particularly to a spring switch for the lid of the insulated container. Background Technology

[0002] The switch for an insulated container is one that opens with a single press and closes with another. Conventional switch and reset spring switch cover assemblies are prone to dimensional variations in individual parts during manufacturing, which can lead to rattling, noise, or internal interference causing leaks after assembly. While the design takes into account manufacturing tolerances, a distance A is reserved between the support tube and the movable plug to ensure a tight seal. However, this distance A can result in a loose fit between the support tube and the stopcock, causing rattling and noise during use. Furthermore, in the manufacturing of conventional insulated water containers, to reduce development costs, the movable plug, movable plug sealing ring, movable plug peripheral sealing ring, sliding tube, top tube, support tube, top rod spring, and retaining ring are often used as generic parts, while the stopcock is usually custom-molded. Although the dimension B on the stopcock is designed as a constant, the actual value of B in the manufactured product can vary due to factors such as mold precision, tolerances during processing, injection molding machine specifications, and differences in material batches. This can cause errors in the B value of the stopcock and movable stopper, making them prone to abnormal noises or leaks due to stopcock seal failure, thus affecting their use. This problem is usually solved by improving product precision, but this significantly increases costs and does not fundamentally overcome the structural defects. Summary of the Invention

[0003] The purpose of this invention is to address the deficiencies in existing technologies by providing a spring switch for insulated container lids that can effectively solve the problems of abnormal noise or water leakage during switching.

[0004] This utility model includes: a top tube 1, a support tube 2, a sliding groove tube 3, a movable plug spring 4, a movable plug 5, a retaining ring 6, a stopcock 7, a push rod spring 8, a movable plug shaft sealing ring 9, a movable plug sealing ring 10, a top tube rib 11, a limiting rib 12, a low limiting helical tooth 13, and a high limiting retaining groove 14. Due to tolerances that may arise during the manufacturing of various parts of the insulated container, in order to ensure the sealing performance of the movable plug 5 and overcome the pre-reserved distance A between the support tube 2 and the movable plug 5, and to overcome the leakage problem that may be caused by the tolerance of the size B of the stopcock 7, the feature is that a movable plug spring 4 is provided between the support tube 2 and the movable plug 5. The movable plug shaft sealing ring 9 and the movable plug sealing ring 10 are sequentially fitted onto the movable plug 5. The movable plug 5 is mounted on the axis of the stopcock 7. The push rod spring 8 is fitted onto the movable plug 5. The elastic force of the push rod spring 8 allows the movable plug 5 to press the movable plug sealing ring 10 against the sealing rib of the stopcock 7, thereby achieving the function of sealing water. The movable plug 5 has a retaining ring 6 at its top. Using a tool, the retaining ring 6 is pressed onto the movable plug 5, and it abuts against the top of the push rod spring 8. The outer side of the sliding tube 3 has a raised rib that mates with the groove on the stopcock 7. The bottom of the push tube 1 has a raised rib 11, and the lower surface of the raised rib 11 has several double-beveled teeth. The outer side of the bottom of the support tube 2 has a limiting rib 12, and the upper surface of the limiting rib 12 has several single-beveled teeth that mate with the double-beveled teeth on the raised rib 11. The sliding tube 3 is installed inside the stopcock 7. The inner bottom of the sliding tube 3 has several low-limiting beveled teeth 13 with bevels, and the upper part has several high-limiting retaining grooves 14. The push tube 1 and the support tube 2 are sequentially fitted into the sliding tube 3.

[0005] When the top tube 1 is pressed, the top tube rib 11 of the top tube 1 is transmitted to the single inclined tooth on the limiting rib 12 of the supporting tube 2 through the double inclined teeth. The supporting tube 2 moves downward. Since the inclined surface of the double inclined teeth has an oblique pushing force on the single inclined tooth of the supporting tube 2, the supporting tube 2 also rotates while moving downward, so that the single inclined tooth of the limiting rib 12 on the supporting tube 2 is locked on the lower limiting inclined tooth 13 of the sliding tube 3. The movable plug 5 and the movable plug sealing ring 10 move downward with the supporting tube 2, and a large gap is formed between the movable plug 5 and the rotary plug 7. At this time, the water outlet of the heat preservation container is in the open state, and the heat preservation container is tilted and lifted to realize water discharge. When the jacking tube 1 is pressed again, the jacking tube rib 11 of the jacking tube 1 presses down on the inclined surface of the single inclined surface of the limiting rib 12 of the supporting tube 2 through the inclined surface of the double inclined teeth, causing the supporting tube 2 to rotate. When the supporting tube 2 rotates beyond the lower limit 13, under the elastic force of the jacking rod spring 8 and the action of the rib of the sliding tube 3, the supporting tube 2 and the jacking tube 1 are moved upward together, so that the single inclined surface of the limiting rib 12 on the supporting tube 2 is stuck in the upper limit slot 14 of the sliding tube 3. At this time, the movable plug 5 and the movable plug sealing ring 10 move upward at the same time. The elastic force of the jacking rod spring 8 causes the movable plug 5 to press the movable plug sealing ring 10 onto the sealing rib of the stopcock. At this time, the water outlet of the heat preservation container is closed and no water can be discharged.

[0006] The lower surface of the jacking rib 11 has six double-sloping teeth, which engage with the single-sloping teeth on the limiting rib 12.

[0007] The upper surface of the limiting rib 12 is provided with a ring of several single inclined teeth, which correspond to and cooperate with the double inclined teeth on the jacking rib 11. The number of single inclined teeth is half that of double inclined teeth.

[0008] The push rod spring 8, through its elastic force, causes the movable plug to press the movable plug sealing ring 10 onto the sealing rib of the plug 7.

[0009] The inner bottom of the grooving tube 3 is provided with six low-limiting oblique teeth 13 with inclined surfaces, and the upper inner part of the grooving tube 3 is provided with six high-limiting slots 14.

[0010] The advantages of this invention are as follows: A movable plug spring 4 is installed at the top of the movable plug 5. In the design, a relatively large dimension A is reserved, and the value of A is positive. Due to manufacturing errors, parts from different batches may vary in size, especially the dimension B of the stopcock 5, which can vary considerably. If the value of A in the assembled product is positive, without the movable plug spring, the top tube 1 and the support tube 2 will wobble inside the sliding tube 3, causing abnormal noise. If the value of A in the assembled product is negative, the support tube 2 will press the movable plug 5 downwards, preventing the movable plug from tightly pressing the movable plug sealing ring 10 against the stopcock 7, thus causing leakage in the stopcock assembly. However, with the addition of the movable plug spring 4, the slight spring force ensures that the top tube 1 and the support tube 2 are tightly pressed inside the sliding tube 3 without pushing the movable plug 5 downwards. Therefore, the addition of the movable plug spring 4 effectively solves the problems of abnormal noise or leakage in the product. With a reasonable and simple structure and modular components that are highly versatile, it overcomes the defects of the product structure, eliminates the need to blindly increase the precision of the product, and can significantly improve the user experience. Attached Figure Description

[0011] Figure 1 A schematic diagram of the sealed assembly cross-sectional structure of this utility model;

[0012] Figure 2 A schematic diagram of the assembled cross-sectional structure in the open state of this utility model;

[0013] Figure 3 A schematic diagram of the structure of the jacking pipe of this utility model;

[0014] Figure 4 A schematic diagram of the structure of the tooth-supporting tube of this utility model;

[0015] Figure 5 A schematic diagram of the structure of the grooved tube of this utility model.

[0016] In the diagram: 1. Jacking pipe, 2. Supporting pipe, 3. Sliding groove pipe, 4. Movable plug spring, 5. Movable plug, 6. Snap ring, 7. Plug, 8. Jacking rod spring, 9. Movable plug shaft seal ring, 10. Movable plug seal ring, 11. Jacking pipe rib, 12. Limiting rib, 13. Low limit helical tooth, 14. High limit snap groove. Detailed Implementation

[0017] The embodiments of this utility model are further described below with reference to the accompanying drawings.

[0018] See Figures 1-2 This embodiment consists of a top tube 1, a support tube 2, a sliding groove tube 3, a movable plug spring 4, a movable plug 5, a retaining ring 6, a stopcock 7, a top rod spring 8, a movable plug shaft sealing ring 9, a movable plug sealing ring 10, a top tube rib 11, a limiting rib 12, a low limiting helical tooth 13, and a high limiting retaining groove 14. Due to tolerances that arise during the manufacturing of the various parts of the insulation container, to ensure the sealing performance of the movable plug 5 and overcome the reserved distance A between the support tube 2 and the movable plug 5, and to overcome potential leakage problems caused by the tolerance of the size B of the stopcock 7, this embodiment includes a movable plug spring 4 between the support tube 2 and the movable plug 5. In the design and manufacturing process, a reserved size A is provided, and the value of A is positive. Due to manufacturing errors, parts from different batches may vary in size, especially the size B of the stopcock 5, which may vary considerably. If the value of A in the assembled product is positive, without the movable plug spring, the top tube 1 and the support tube 2 will wobble inside the sliding tube 3, causing abnormal noise. If the value of A in the assembled product is negative, the support tube 2 will press the movable plug 5 downwards, preventing the movable plug from tightly pressing the movable plug sealing ring 10 against the stopcock 7, thus causing leakage in the stopcock assembly. However, with the addition of the movable plug spring 4, the slight spring force ensures that the top tube 1 and the support tube 2 are tightly pressed inside the sliding tube 3 without causing the movable plug 5 to loosen downwards. Adding the movable plug spring 4 effectively solves the problems of abnormal noise or leakage in the product.

[0019] A movable plug shaft seal ring 9 and a movable plug seal ring 10 are sequentially fitted onto the movable plug 5. The movable plug 5 is mounted on the axis of the stopcock 7. A push rod spring 8 is fitted onto the movable plug 5. The elastic force of the push rod spring 8 allows the movable plug 5 to press the movable plug seal ring 10 against the sealing rib of the stopcock 7, thereby sealing the water. A retaining ring 6 is provided at the top of the movable plug 5. The retaining ring 6 is pressed onto the movable plug 5 using a tooling. The retaining ring 6 abuts against the top of the push rod spring 8. A raised rib is provided on the outer side of the sliding tube 3, which mates with the groove on the stopcock 7. A raised rib 11 is provided at the bottom of the top tube 1. The lower surface of the raised rib 11 has several double-beveled teeth. In this embodiment, there are six double-beveled teeth. See also Figure 3 The outer side of the bottom of the support tube 2 is provided with a ring of limiting ribs 12. The upper surface of the limiting ribs 12 is provided with several single inclined teeth that cooperate with the double inclined teeth on the top tube ribs 11. In this embodiment, there are three single inclined teeth. See Figure 4The single-beveled tooth engages with the double-beveled tooth on the limiting rib 12. The sliding tube 3 is installed inside the stopcock 7. Several low-limiting beveled teeth 13 with bevels are provided on the inner bottom of the sliding tube 3; in this embodiment, there are six low-limiting beveled teeth. Several high-limiting slots 14 are provided on the inner upper part of the sliding tube 3; in this embodiment, there are six high-limiting slots. See also... Figure 5 The jacking pipe 1 and the supporting pipe 2 are sequentially fitted into the sliding pipe 3.

[0020] When the top tube 1 is pressed, the top tube rib 11 of the top tube 1 is transmitted to the single inclined tooth on the limiting rib 12 of the supporting tube 2 through the double inclined teeth. The supporting tube 2 moves downward. Since the inclined surface of the double inclined teeth has an oblique pushing force on the single inclined tooth of the supporting tube 2, the supporting tube 2 also rotates while moving downward, so that the single inclined tooth of the limiting rib 12 on the supporting tube 2 is locked on the lower limiting inclined tooth 13 of the sliding tube 3. The movable plug 5 and the movable plug sealing ring 10 move downward with the supporting tube 2, and a large gap is formed between the movable plug 5 and the rotary plug 7. At this time, the water outlet of the heat preservation container is in the open state, and the heat preservation container is tilted and lifted to realize water discharge. When the jacking tube 1 is pressed again, the jacking tube rib 11 of the jacking tube 1 presses down on the inclined surface of the single inclined surface of the limiting rib 12 of the supporting tube 2 through the inclined surface of the double inclined teeth, causing the supporting tube 2 to rotate. When the supporting tube 2 rotates beyond the lower limit inclined tooth 13, under the elastic force of the jacking rod spring 8 and the action of the rib of the sliding tube 3, the supporting tube 2 and the jacking tube 1 are moved upward together, so that the single inclined surface of the limiting rib 12 on the supporting tube 2 is stuck in the upper limit slot 14 of the sliding tube 3. At this time, the movable plug 5 and the movable plug sealing ring 10 move upward at the same time. The elastic force of the jacking rod spring 8 causes the movable plug 5 to press the movable plug sealing ring 10 onto the sealing rib of the stopcock. At this time, the water outlet of the heat preservation container is closed and no water can be discharged.

Claims

1. A spring switch for an insulated container lid, comprising: The components are: a jacking tube (1), a support tube (2), a sliding groove tube (3), a movable plug spring (4), a movable plug (5), a retaining ring (6), a rotary plug (7), a push rod spring (8), a movable plug shaft seal ring (9), a movable plug seal ring (10), a jacking tube rib (11), a limiting rib (12), a low limiting helical tooth (13), and a high limiting retaining groove (14). The key feature is that a movable plug spring (4) is provided between the support tube (2) and the movable plug (5). A movable plug shaft seal ring (9) and a movable plug seal ring (10) are sequentially fitted onto the movable plug (5). The movable plug (5) is mounted on the axis of the rotary plug (7). A push rod spring (8) is fitted onto the movable plug (5). A retaining ring (6) is provided at the top of the movable plug (5). The top of the ring (6) abuts against the top of the top rod spring (8). The outer side of the slide tube (3) is provided with a ring of convex ribs, which cooperate with the groove on the stopcock (7). The bottom of the top tube (1) is provided with a ring of top tube convex ribs (11). The lower surface of the top tube convex ribs (11) is provided with several double-bevel teeth. The outer side of the bottom of the support tube (2) is provided with a ring of limiting convex ribs (12). The upper surface of the limiting convex ribs (12) is provided with several single-bevel teeth that cooperate with the double-bevel teeth on the top tube convex ribs (11). The slide tube (3) is installed in the stopcock (7). The bottom of the inner side of the slide tube (3) is provided with several low-limiting bevel teeth (13) with bevels and several high-limiting slots (14) on the upper part. The top tube (1) and the support tube (2) are sequentially fitted into the slide tube (3).

2. The insulated container lid spring switch according to claim 1, characterized in that... The lower surface of the jacking rib (11) has six double-sloping teeth, which are engaged with the single-sloping teeth on the limiting rib (12).

3. The insulated container lid spring switch according to claim 1, characterized in that... The upper surface of the limiting rib (12) is provided with several single inclined teeth that correspond to the double inclined teeth on the jacking rib (11), and the number of single inclined teeth is half that of double inclined teeth.

4. The insulated container lid spring switch according to claim 1, characterized in that... The top rod spring (8) causes the movable plug (5) to press the movable plug sealing ring (10) onto the sealing rib of the plug (7) through its elastic force.

5. The insulated container lid spring switch according to claim 1, characterized in that... The inner bottom of the grooving tube (3) is provided with six low-limiting helical teeth (13) with inclined surfaces, and the upper inner part of the grooving tube (3) is provided with six high-limiting slots (14).

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