Vacuum cup cover capable of being rotationally locked and detachably cleaned

Abstract

A vacuum cup cover capable of being rotationally locked and detachably cleaned comprises a cup cover body and is characterized in that the cup cover body comprises an upper cover body and a lower cover body which are detachably connected, the lower cover body is of a cylindrical structure with an upper opening and a lower opening, the lower cover body is arranged at the upper end of a cup body in a threaded connection mode, and the upper cover body is detachably connected with the lower cover body in a clamping and rotating connection mode; the lower end of the upper cover is convexly provided with a middle bolt in sealing fit with the cup opening, the upper end of the inner wall of the cup body is annularly convexly provided with a water stop rib abutting against the lower end of the middle bolt, and when the cup cover and the cup body are fixedly connected, a clamping mechanism between the upper cover and the lower cover enables the upper cover to bear upward pressure of the water stop rib and cannot be screwed and separated. The utility model has the advantages of simple and reasonable structure, few accessories, convenience in disassembly and assembly, good heat preservation effect, safety and reliability in use, and convenience in cleaning and sanitation.

Description

Technical Field

[0001] The utility model relates to a heat preservation cup, in particular to a heat preservation cup cover with rotary locking and detachable cleaning function. Background Art

[0002] Most traditional heat preservation cup covers are integrally formed and cannot be disassembled. After long-term use, dirt will accumulate inside the cup cover and is not easy to clean. Therefore, detachable heat preservation cup covers have emerged.

[0003] At present, the detachable heat preservation cup covers on the market commonly adopt two structures: pin type and screw thread screwing type. These two structures have the following defects in the use process:

[0004] First, in the pin type, the inner plug is independent, resulting in a too thin sealing layer and losing a large part of the sealing and heat preservation effect.

[0005] Second, in the screw thread screwing type, it is necessary to take into account both the cup mouth thread and the disassembly thread, which is logically contradictory in use. In the closed state, the disassembly thread is likely to become loose, causing water leakage.

[0006] Third, both require more than three accessories. In actual use, due to the large number of accessories, the disassembly is cumbersome, and there is also the problem of accessory loss.

[0007] After investigation, the existing Chinese patent "A Detachable Heat Preservation Cup Cover" with patent number CN202022979778.5 includes a plastic top cover, a plastic cover, a plastic core and a positioning pin. At both ends of the bottom of the plastic top cover, there are fixedly connected clamping blocks. On one side of one of the clamping blocks, there is a fixedly connected limiting plate. There is a decorative ring on the top edge of the plastic cover. The plastic cover covers the top of the cup body. At the bottom end of the plastic core, there is a steel core. There is a groove at a position slightly below the outer wall of the plastic core. A leather ring is movably sleeved in the groove at the bottom end of the plastic core. There is a circle of convex blocks on the plastic core at a position above the leather ring. A clamping plate is fixedly connected to the plastic core on the side deviating from the clamping part. The plastic top cover of this cup cover can be conveniently disassembled for cleaning. The plastic core is connected inside the plastic cover by clamping, which is convenient for disassembly and assembly and easy to clean. However, the structure is relatively complex and there are many accessories, and it also has the above technical problems. Summary of the Invention

[0008] The technical problem to be solved by the utility model is to provide a heat preservation cup cover with rotary locking, detachable cleaning, simple and reasonable structure, few accessories, good heat preservation effect and safe use in view of the above technical status.

[0009] The technical solution adopted by the present utility model to solve the above technical problems is as follows: A thermos cup lid with rotary locking and detachable cleaning, including a cup lid, characterized in that: the cup lid includes a detachable upper lid and a lower lid, wherein the lower lid is a cylindrical structure with openings at both the top and bottom, the lower lid is arranged at the upper end of the cup body by means of threaded connection, the upper lid is detachably connected to the lower lid by means of snap-rotation connection, a middle plug that is hermetically matched with the cup mouth is convexly provided at the lower end of the upper lid, and a water-stop rib that abuts against the lower end of the middle plug is circumferentially convexly provided at the upper end of the inner wall of the cup body. When the cup lid is fixedly connected to the cup body, the latching mechanism between the upper lid and the lower lid causes the upper lid to be subjected to an upward pressure from the water-stop rib and cannot be unscrewed and detached from the lower lid.

[0010] As an improvement, the upper lid includes a circular lid corresponding to the lower lid. A connecting convex ring is formed at the lower end of the circular lid. A circular groove for the connecting convex ring to be placed in is concavely provided at the upper end of the lower lid. A clamping block is convexly provided on the outer wall of the lower end of the connecting convex ring. An L-shaped limiting clamping groove for the clamping block to be inserted and rotationally positioned is concavely provided on the inner wall of the circular groove. The upper lid is snap-rotationally connected to the lower lid through the cooperation of the clamping block and the limiting clamping groove.

[0011] Furthermore, the limiting clamping groove includes a connected horizontal groove and a vertical groove. The height of the horizontal groove is greater than the height of the clamping block. The top surface of the horizontal groove gradually rises inward to form a convex point for limiting the clamping block after it is screwed in. When the cup lid is fixedly connected to the cup body by means of threaded connection, the upper lid moves upward under the pressure of the middle plug abutting against the water-stop rib. The clamping block moves upward accordingly and tightly abuts against the upper end inner wall of the horizontal groove. There is a certain gap between the lower end of the clamping block and the lower end inner wall of the horizontal groove. The convex point near the vertical groove at the upper end of the horizontal groove limits the clamping block after it is screwed in.

[0012] Still further, two clamping blocks are symmetrically arranged. Correspondingly, two symmetrical limiting clamping grooves are provided on the inner wall of the circular groove. A sealing ring is embedded on the outer side of the upper end of the connecting convex ring at the lower end of the circular lid to abut and seal against the lower lid.

[0013] Furthermore, the middle plug is cylindrical and is matched with the inner diameter of the cup mouth. A heat-insulating foam is provided inside the middle plug. The middle plug is fixed on the lower end surface of the circular lid and forms an integral part with the upper lid. An annular convex rib is formed on the outer peripheral surface of the middle plug.

[0014] Still further, a middle plug sealing ring is embedded at the lower end of the middle plug. The middle plug abuts against the water-stop rib through the middle plug sealing ring.

[0015] Furthermore, the snap-rotation positioning direction of the upper lid is the same as the spiral connection direction of the lower lid and the cup body, both being clockwise.

[0016] Finally, a pull ring for facilitating rotation or hand-held is provided at the upper end of the circular lid of the upper lid.

[0017] Compared with the prior art, the advantages of the present utility model are as follows: The structure is simplified, making disassembly and assembly very convenient; by utilizing the original cup mouth thread to tighten and then anti-lock, when the cup lid is in the tightened state, the upper lid cannot be opened, ensuring safety; at the same time, when tightening the upper lid, since the direction of the card rotation positioning is the same as the direction of the cup mouth thread, it conforms to the usage habits of the public in terms of usage logic. There is a heat-insulating foam inside the middle bolt at the lower end of the upper lid, providing sufficient space for heat insulation and enhancing the heat preservation effect. The structure of the present utility model is simple and reasonable, with few accessories, convenient disassembly and assembly, good heat preservation effect, safe and reliable in use, and convenient for cleaning and sanitation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of a heat-insulating cup according to an embodiment of the present utility model;

[0019] Figure 2 is Figure 1 the top view of;

[0020] Figure 3 is a longitudinal sectional view of a heat-insulating cup according to an embodiment of the present utility model;

[0021] Figure 4 is Figure 1 the exploded view of. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The present utility model will be further described in detail below in conjunction with the embodiments of the drawings.

[0023] As Figures 1 to 4 shown, a heat-insulating cup lid with rotary locking and detachable cleaning, the heat-insulating cup includes a cup body A and a cup lid B, the cup lid B includes a detachable upper lid 2 and a lower lid 1, wherein the lower lid 1 is a cylindrical structure with upper and lower openings, the lower lid 1 is arranged at the upper end of the cup body A by means of threaded connection, the upper lid 2 is detachably connected to the lower lid 1 by means of card rotation connection, a middle bolt 3 that is hermetically fitted with the cup mouth is convexly provided at the lower end of the upper lid 2, and a water stop rib 10 that abuts against the lower end of the middle bolt 3 is convexly provided circumferentially at the upper end of the inner wall of the cup body 1. When the cup lid B is fixedly connected to the cup body A, the latching mechanism between the upper lid and the lower lid causes the upper lid 2 to be subjected to an upward pressure from the water stop rib 10 and cannot be screwed off.

[0024] The specific structure is as follows: An externally threaded connection section with a reduced diameter is formed at the upper end of the cup body A, and a corresponding internal thread is formed on the inner wall of the lower end of the lower cover 1. The lower cover 1 is fixed to the cup body A by means of threaded connection. The upper cover 2 includes a circular cover 21 corresponding to the lower cover 1. A connecting convex ring 22 is formed at the lower end of the circular cover 21. A circular groove 13 for placing the connecting convex ring 22 is recessed at the upper end of the lower cover 1. A clamping block 23 protrudes from the outer wall of the lower end of the connecting convex ring 22. An L-shaped limiting clamping groove 11 for inserting and rotating the clamping block 23 for positioning is recessed on the inner wall of the circular groove. The limiting clamping groove 11 includes a connected horizontal groove 14 and a vertical groove 15. The upper cover 2 is connected to the lower cover 1 by screwing and clamping through the cooperation of the clamping block 23 and the L-shaped limiting clamping groove 11. The height of the horizontal groove of the limiting clamping groove 11 is greater than the height of the clamping block 23. Moreover, the top surface of the horizontal groove 14 of the limiting clamping groove 11 gradually rises inward to form a convex point 12 for limiting the clamping block 23 after it is screwed in. When the cup cover B is fixedly connected to the cup body A by threading, the upper cover 2 moves upward under the pressure of the middle bolt 3 against the water stop rib 10, and the clamping block 23 also moves upward and tightly abuts against the upper end inner wall of the horizontal groove 14. There is a certain gap a between the lower end of the clamping block 23 and the lower end inner wall of the horizontal groove. At the upper end of the horizontal groove 14, near the vertical groove 15, the convex point 12 limits the screwed-in clamping block 23, thus forming a locking mechanism between the upper cover and the lower cover. The clamping blocks 23 in this embodiment are two symmetrically arranged. Correspondingly, the limiting clamping grooves 11 on the inner wall of the circular groove are also two symmetrically arranged. A sealing ring 6 is embedded on the outer side of the upper end of the connecting convex ring 22 at the lower end of the circular cover 21 and abuts against the lower cover 1 for sealing.

[0025] The middle bolt 3 is cylindrical and matches the inner diameter of the cup mouth. A heat-insulating foam 5 is provided inside the middle bolt 3. The middle bolt 3 is fixed on the lower end surface of the circular cover 21 to form an integral part with the upper cover 2. An annular convex rib 31 is formed on the outer peripheral surface of the middle bolt 3. A middle bolt sealing ring 4 is embedded at the lower end of the middle bolt 3. The middle bolt 3 abuts against the water stop rib 11 through the middle bolt sealing ring 4. The screwing and positioning direction of the upper cover 2 is the same as the spiral connection direction of the lower cover 1 and the cup body A, both being clockwise. A pull ring 24 for easy rotation or hand-held is provided at the upper end of the circular cover 21 of the upper cover 2.

[0026] The working principle is as follows:

[0027] Rotate the cup cover B clockwise to fixedly connect the cup cover B to the cup body A. The middle bolt 3 tightly abuts against the water stop rib 11. The upper cover 2 moves upward under the pressure of the water stop rib 11, so that the clamping block 23 tightly abuts against the upper end inner wall of the horizontal groove 14 of the limiting clamping groove 11 and is locked by the convex point 12. If the upper cover 2 is rotated counterclockwise when the cup cover B is in a tightened state, due to the existence of the convex point 12 in the limiting clamping groove 11, the upper cover 2 will generate a downward force. Due to the supporting force of the water stop rib 11 and the middle bolt 3, the upper cover 2 cannot rotate, forming self-locking. As Figure 3 shown, in this way, when the cup cover B is in a tightened state, the upper cover 2 cannot be opened, avoiding the loosening of the upper cover 2 and ensuring safety.

[0028] The upper cover 2 can be disengaged by counterclockwise rotation only when the cup lid B is loosened.

[0029] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A rotatable locking and detachable washable thermos cup lid, comprising a cup lid, characterized in that: The cup lid includes an upper lid and a lower lid that are detachably connected. The lower lid is a cylindrical structure with openings at both the top and bottom. The lower lid is arranged at the upper end of the cup body by means of threaded connection. The upper lid is detachably connected to the lower lid by means of snap-rotation connection. A middle plug that is hermetically fitted with the cup mouth protrudes from the lower end of the upper lid. A water-stop rib that abuts against the lower end of the middle plug protrudes circumferentially from the upper end of the inner wall of the cup body. When the cup lid is fixedly connected to the cup body, the latching mechanism between the upper lid and the lower lid causes the upper lid to be subjected to an upward pressure from the water-stop rib and cannot be unscrewed and detached from the lower lid.

2. The thermos cup lid according to claim 1, characterized in that: The upper lid includes a circular lid corresponding to the lower lid. A connecting convex ring is formed at the lower end of the circular lid. A circular groove for placing the connecting convex ring is recessed at the upper end of the lower lid. A latch protrudes from the outer wall of the lower end of the connecting convex ring. An L-shaped limiting card slot for inserting and rotating the latch for positioning is recessed on the inner wall of the circular groove. The upper lid is snap-rotationally connected to the lower lid through the cooperation of the latch and the limit.

3. The thermos cup lid according to claim 2, characterized in that: The limiting card slot includes a connected horizontal slot and a vertical slot. The height of the horizontal slot is greater than the height of the latch. The top surface of the horizontal slot gradually rises inward to form a convex point for limiting the latch after it is screwed in. When the cup lid is fixedly connected to the cup body by threaded connection, the upper lid moves upward under the pressure of the middle plug abutting against the water-stop rib. The latch moves upward and tightly abuts against the upper end inner wall of the horizontal slot. There is a certain gap between the lower end of the latch and the lower end inner wall of the horizontal slot. At the upper end of the horizontal slot, near the vertical slot, the convex point screws in the latch for limiting.

4. The thermos cup lid according to claim 3, characterized in that: There are two symmetrically arranged latches. Correspondingly, there are two symmetrically arranged limiting card slots on the inner wall of the circular groove. A sealing ring is embedded on the outer side of the upper end of the connecting convex ring at the lower end of the circular lid to abut and seal with the lower lid.

5. The thermos cup lid according to claim 4, characterized in that: The middle plug is cylindrical and is matched with the inner diameter of the cup mouth. A heat-insulating foam is provided inside the middle plug. The middle plug is fixed on the lower end surface of the circular lid and forms an integral part with the upper lid. An annular convex rib is formed on the outer peripheral surface of the middle plug.

6. The thermos cup lid according to claim 5, characterized in that: A middle plug sealing ring is embedded at the lower end of the middle plug. The middle plug abuts against the water-stop rib through the middle plug sealing ring.

7. The thermos cup lid according to any one of claims 1 to 6, characterized in that: The snap-rotation positioning direction of the upper lid is the same as the spiral connection direction of the lower lid and the cup body, both being clockwise.

8. The thermos cup lid according to any one of claims 1 to 6, characterized in that: A pull ring for facilitating rotation or hand-held is provided at the upper end of the circular lid of the upper lid.

Images