Heat insulation paper cup with blind box function

Abstract

The utility model relates to the technical field of heat insulation paper cups, and discloses a heat insulation paper cup with a blind box function, which comprises an outer sleeve cup, an interlayer is fixedly connected to the middle lower part of the inner wall of the outer sleeve cup, a fixing ring is fixedly connected to the middle upper part of the inner wall of the outer sleeve cup, and an inner paper cup is arranged on the inner wall of the outer sleeve cup. A limiting ring is arranged in the middle of the outer wall of the inner paper cup, a sawtooth opening is formed in the bottom of the outer wall of the outer sleeve cup, a storage cup is arranged at the bottom of the sawtooth opening, the left side and the right side of the bottom of the inner wall of the outer sleeve cup are each fixedly connected with two fixing columns, and the outer walls of the two fixing columns are each fixedly connected with a connecting rod. The sides, away from each other, of the bottoms of the two connecting rods are fixedly connected with sliding blocks. The fixing columns on the left side and the right side of the bottom of the inner wall of the outer sleeve cup are connected with the sliding blocks through the connecting rods, and the sliding grooves in the left side and the right side of the top of the inner wall of the storage cup are slidably connected with the sliding blocks, so that the storage cup is tightly connected with the outer sleeve cup.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of heat -insulating paper cup especially, a kind of heat -insulating paper cup with blind box function. BACKGROUND

[0002] In daily life, paper cup is the common container of people's dress drinks, widely used in coffee shop, milk tea shop and fast food restaurant place, but consumer's demand for product is more and more diversified, pure dress function has been difficult to meet their expectations, so a kind of heat -insulating paper cup with blind box function is needed.

[0003] Through retrieval, China patent publication No. CN218229769U, a kind of paper cup with good heat -insulating effect, relate to paper cup technical field, including the cup body of cylindrical, the partition in cup body, the heat -insulating sleeve of cup body is sleeved, the heat -insulating sleeve and cup body sliding connection, the partition divides the space in cup body into blind box area, beverage area in blind box area upper side;The cup body is equipped with the slot in blind box area corresponding position to take the prize in blind box area, the heat -insulating sleeve covers on slot, this practical has blind box function, has more fun, heat -insulating sleeve plays the role of sealing blind box area, also has the effect of heat insulation, but most paper cup can only realize the basic function of liquid dress, face the consumer trend of pursuing multifunctional integration, it is not the right man for the job. UTILITY MODEL CONTENT

[0004] In order to make up for the above shortcomings, the utility model provides a kind of heat -insulating paper cup with blind box function, aims at improving the problem that most paper cup can only realize the basic function of liquid dress in prior art, face the consumer trend of pursuing multifunctional integration, it is not the right man for the job.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a kind of heat -insulating paper cup with blind box function, including outer sleeve cup, the inner wall middle lower part of outer sleeve cup is fixedly connected with the partition, the inner wall middle upper part of outer sleeve cup is fixedly connected with fixed ring, the inner wall of outer sleeve cup is provided with inner paper cup, the outer wall middle part of inner paper cup is provided with limit ring, the outer wall bottom of outer sleeve cup is provided with sawtooth mouth, the bottom of sawtooth mouth is provided with storage cup, the inner wall bottom of outer sleeve cup is fixedly connected with two fixed columns on left and right sides, the outer wall of two fixed columns is fixedly connected with connecting rod, the bottom of two connecting rods is fixedly connected with sliding block on the side far away from each other, the inner wall top of storage cup is fixedly connected with two sliding grooves on left and right sides, the inner wall of two sliding grooves is slidably connected with two sliding blocks, the outer wall of outer sleeve cup is provided with sealing mechanism.

[0006] Through the technical scheme, the middle lower part of the inner wall of the outer cup is firmly connected with the partition layer, the partition layer can effectively block heat transfer, when the cup contains hot drinks, the user's hand holding the paper cup will not be scalded, and good heat insulation effect is achieved, meanwhile, the middle upper part of the inner wall of the outer cup is connected with the fixing ring, the middle part of the outer wall of the inner paper cup is provided with the limiting ring, the limiting ring and the fixing ring cooperate with each other, the inner paper cup is stably fixed in the outer cup, and the heat insulation performance is further enhanced, and the stability of the overall structure is ensured, the outer wall bottom of the outer cup is provided with the sawtooth opening, the storage cup is connected below the sawtooth opening, the storage cup is specially used for placing the blind box small gift, if the consumer wants to open the blind box, only needs to tear along the sawtooth opening, and the storage cup can be easily opened, in order to ensure that the storage cup and the outer cup are firmly connected, the left and right sides of the inner wall bottom of the outer cup are each fixedly connected with two fixing columns, each fixing column is connected with a sliding block through a connecting rod, the left and right sides of the inner wall top of the storage cup are correspondingly fixedly connected with two sliding grooves, and the sliding block and the sliding groove are slidably connected, the design not only facilitates assembly, but also ensures that the storage cup and the outer cup are closely connected when the blind box is not opened and are not easily separated.

[0007] As a further description of the above technical scheme:

[0008] The sealing mechanism comprises a fixed block, an inner wall of the fixed block is fixedly connected to a top end of an outer wall of the outer cup, a sealing groove is formed in a top portion of the fixed block, a cup cover is arranged at the top end of the outer wall of the outer cup, a sealing plate is fixedly connected to a bottom portion of an outer wall of the cup cover, an installation groove is formed in a bottom portion of the sealing plate, and a sealing ring is fixedly connected to an inner wall of the installation groove.

[0009] Through the technical scheme, the inner wall of the fixed block is fixedly connected to the top end of the outer wall of the outer cup, the sealing groove is formed in the top portion of the fixed block, the cup cover is arranged at the top end of the outer wall of the outer cup, the sealing plate is fixedly connected to the bottom portion of the outer wall of the cup cover, the installation groove is formed in the bottom portion of the sealing plate, and the sealing ring is fixedly connected to the inner wall of the installation groove, the sealing plate is in contact with the fixed block when the cup cover is covered on the outer cup, the sealing ring and the sealing groove cooperate with each other to form a tight sealing structure, and the sealing structure can effectively prevent the drinks from spilling out, and can ensure the safety of the drinks without leakage, thereby greatly improving the convenience and safety of the paper cup.

[0010] As a further description of the above technical scheme:

[0011] A rotating piece is rotatably connected to a top front side of the cup cover, and a protruding block is fixedly connected to a top portion of the rotating piece.

[0012] Through the technical scheme, when the cup cover needs to be opened, the user can push the protruding block with fingers to easily rotate the rotating piece, thereby conveniently opening the cup cover, avoiding pollution caused by directly contacting the cup cover, and providing convenience for opening.

[0013] Further to the technical scheme, the cup cover is provided with a sealing mechanism.

[0014] The top middle part of the cup cover is provided with a connecting groove, and the inner wall of the connecting groove is clamped with the outer wall of the protruding block.

[0015] Through the technical scheme, the connecting groove is arranged in the top middle part of the cup cover, and the inner wall of the connecting groove is clamped with the outer wall of the protruding block. When the paper cup is not used, the rotating piece can be rotated to the position where the protruding block is clamped with the connecting groove, so that the rotating piece is stably attached to the cup cover, the overall appearance is further optimized, and the use experience is improved.

[0016] Further to the technical scheme, the cup cover is provided with a sealing mechanism.

[0017] The top rear side of the cup cover is provided with a sealing block, and the top of the sealing block is fixedly connected with a decorative block.

[0018] Through the technical scheme, the sealing block further enhances the sealing performance of the cup cover, and the cup cover is tightly attached to the cup mouth. On the basis of the previous sealing mechanism, the sealing performance of the cup cover is further improved, and the decorative block adds aesthetic and personalized elements to the paper cup.

[0019] Further to the technical scheme, the cup cover is provided with a sealing mechanism.

[0020] The top front side of the cup cover is provided with a first insertion groove, and the inner wall of the first insertion groove is clamped with the rotating piece.

[0021] Through the technical scheme, the first insertion groove is arranged in the top front side of the cup cover, and the inner wall of the first insertion groove is clamped with the rotating piece. When the rotating piece is not used, the rotating piece can be clamped into the first insertion groove, so that the top of the cup cover is more flat, the risk of collision damage caused by the protruding rotating piece is reduced, and the overall practicability and aesthetic degree of the cup cover are further improved.

[0022] Further to the technical scheme, the cup cover is provided with a sealing mechanism.

[0023] The top rear side of the cup cover is provided with a second insertion groove, and the inner wall of the second insertion groove is clamped with the outer wall of the sealing block.

[0024] Through the technical scheme, the rear side of the top of the cup cover is provided with a second insertion slot, the inner wall of the second insertion slot is clamped with the outer wall of the sealing block, when the paper cup is in a normal use state, the sealing block is tightly attached to the cup opening, thereby providing additional sealing protection for the paper cup, and when the cup cover needs to be cleaned or stored, the sealing block can be clamped into the second insertion slot, so that the sealing block cannot shake at will, thereby facilitating operation.

[0025] Further description is made to the technical scheme:

[0026] The distal ends of the two fixing columns are fixedly connected to the inner wall bottom of the outer sleeve cup at equal distances.

[0027] Through the technical scheme, the distal ends of the two fixing columns are fixedly connected to the inner wall bottom of the outer sleeve cup at equal distances. The equal distance fixed connection mode ensures the uniformity of the distribution of the fixing columns in the outer sleeve cup, and can provide a stable and balanced support basis for the subsequent associated components.

[0028] The utility model has the advantages of:

[0029] 1. In the utility model, the fixing columns on the left and right sides of the inner wall bottom of the outer sleeve cup are connected with the sliding blocks through connecting rods, and the sliding grooves on the left and right sides of the inner wall top of the storage cup are slidingly connected with the sliding blocks, so that the storage cup and the outer sleeve cup are tightly connected together. During daily carrying or placing, even if the paper cup is subjected to a certain external impact or shaking, the storage cup will not easily fall off, thereby ensuring the safety of the blind box gift.

[0030] 2. In the utility model, when the cup cover is covered on the outer sleeve cup, the sealing plate at the bottom of the outer wall of the cup cover moves downward, the sealing ring fixed in the mounting groove at the bottom of the sealing plate is pressed into the sealing groove at the top of the fixed block. Since the sealing ring is usually made of elastic material, it will tightly adhere to the inner wall of the sealing groove after being pressed, thereby filling all possible gaps and forming a reliable sealing barrier. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 A perspective view of the heat-insulating paper cup with a blind box function is provided for the utility model;

[0032] Figure 2 A front view of the heat-insulating paper cup with a blind box function is provided for the utility model;

[0033] Figure 3 A partial structure display view of the heat-insulating paper cup with a blind box function is provided for the utility model;

[0034] Figure 4 A sectional view of the heat-insulating paper cup with a blind box function is provided for the utility model;

[0035] Figure 5 A sealing mechanism of a heat-insulating paper cup with a blind box function is shown in the schematic view of the utility model.

[0036] Legend:

[0037] 1, outer sleeve cup; 2, sealing mechanism; 201, fixed block; 202, sealing groove; 203, cup cover; 204, sealing plate; 205, mounting groove; 206, sealing ring; 3, spacer; 4, fixed ring; 5, inner paper cup; 6, limiting ring; 7, sawtooth opening; 8, storage cup; 9, fixed column; 10, connecting rod; 11, sliding block; 12, sliding groove; 13, rotating piece; 14, protruding block; 15, connecting groove; 16, sealing block; 17, decorative block; 18, socket groove one; 19, socket groove two. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0039] With reference to Figure 1 , Figure 3 and Figure 4 , an embodiment provided by the utility model: a heat-insulating paper cup with a blind box function, comprising an outer sleeve cup 1, a spacer 3 is fixedly connected to the inner wall of the lower part of the outer sleeve cup 1, a fixed ring 4 is fixedly connected to the inner wall of the upper part of the outer sleeve cup 1, an inner paper cup 5 is arranged on the inner wall of the outer sleeve cup 1, a limiting ring 6 is arranged on the outer wall of the middle part of the inner paper cup 5, a sawtooth opening 7 is arranged on the outer wall of the bottom of the outer sleeve cup 1, a storage cup 8 is arranged on the bottom of the sawtooth opening 7, two fixed columns 9 are fixedly connected to the inner wall of the bottom of the outer sleeve cup 1 on the left and right sides, connecting rods 10 are fixedly connected to the outer wall of the two fixed columns 9, sliding blocks 11 are fixedly connected to the bottom of the two connecting rods 10 on the sides away from each other, two sliding grooves 12 are fixedly connected to the inner wall of the top of the storage cup 8 on the left and right sides, the inner wall of the two sliding grooves 12 is slidably connected with the two sliding blocks 11, and a sealing mechanism 2 is arranged on the outer wall of the outer sleeve cup 1.

[0040] Specifically, first is the outer cup 1, as the main frame of the paper cup, made of solid material, can withstand external pressure, provide stable support for the internal components, the partition layer 3 in the middle and lower part of the inner wall, filled with air, such as a poor conductor of heat, when the inner paper cup 5 contains hot drinks, can effectively block heat transfer, avoid the user from being scalded when holding, the fixed ring 4 in the middle and upper part of the inner wall of the outer cup 1, and the limiting ring 6 in the middle of the outer wall of the inner paper cup 5, prevent the inner paper cup 5 from falling in the vertical direction, and make it accurate positioning in the horizontal direction, ensure the stability of the heat insulation structure, the inner paper cup 5 directly contacts the beverage, the material meets the food hygiene standard, and the outer cup 1, the partition layer 3 jointly build the heat insulation system, the sawtooth opening 7 at the bottom of the outer wall of the outer cup 1, uses the stress concentration principle, the user can easily tear along the sawtooth opening 7, open the storage cup 8 for storing blind box gifts below, the storage cup 8 is connected with the outer cup 1 through a complex structure, the outer cup 1 has two fixed columns 9 on the left and right sides of the inner wall bottom, connected with the connecting rod 10, and the connecting rod 10 is connected with the sliding block 11, the two sliding grooves 12 on the top of the inner wall of the storage cup 8 correspond to the position, and are connected with the sliding block 11, based on the sliding friction, both ensure the stability of the storage cup 8 and can smoothly separate when opening the blind box.

[0041] Referring to Figure 3 , Figure 4 and Figure 5 , the sealing mechanism 2 includes a fixed block 201, the inner wall of the fixed block 201 is fixedly connected to the top end of the outer wall of the outer cup 1, a sealing groove 202 is formed in the top of the fixed block 201, a cup cover 203 is arranged at the top end of the outer wall of the outer cup 1, a sealing plate 204 is fixedly connected to the bottom of the outer wall of the cup cover 203, an installation groove 205 is formed in the bottom of the sealing plate 204, and a sealing ring 206 is fixedly connected to the inner wall of the installation groove 205 and matched with the installation groove 205.

[0042] Specifically, the inner wall of the fixed block 201 is fixedly connected to the top end of the outer wall of the outer cup 1, providing stable support for the entire sealing mechanism 2, the cup cover 203 is arranged at the top end of the outer wall of the outer cup 1, when it is necessary to preserve or carry the beverage, the cup cover 203 is covered, which can effectively prevent air and dust from entering the cup and prevent the beverage from spilling, thereby ensuring the hygiene and safety of the beverage, the sealing plate 204 is fixed to the bottom of the outer wall of the cup cover 203 and moves with the cup cover 203, when the sealing plate 204 is closed, it is tightly matched with the fixed block 201 and the sealing groove 202, and the large area of the sealing plate 204 can cover most of the cup opening, thereby preliminarily reducing the possibility of beverage spilling, the installation groove 205 in the bottom of the sealing plate 204 is used for fixing the sealing ring 206, and the installation groove 205 ensures the stable position of the sealing ring 206 and prevents the sealing ring 206 from being displaced during use, and the sealing ring 206 matched with the installation groove 205 is the last barrier for sealing, has good elasticity, is deformed by being pressed when the cup cover 203 is closed, fills the gap, realizes tight sealing, and effectively prevents the beverage from leaking.

[0043] With reference to Figure 1 , Figure 2 and Figure 4 , the top front side of the cup cover 203 is rotationally connected with a rotating piece 13, and the top of the rotating piece 13 is fixedly connected with a protruding block 14; the top end of the cup cover 203 is provided with a connecting groove 15, and the inner wall of the connecting groove 15 is clamped with the outer wall of the protruding block 14; the top rear side of the cup cover 203 is provided with a sealing block 16, and the top of the sealing block 16 is fixedly connected with a decorative block 17;

[0044] Specifically, the rotating piece 13 can rotate flexibly around the connecting point, which provides a convenient operation experience for the user. When the user wants to open the cup cover 203, the rotating piece 13 can serve as a force point, and the protruding block 14 fixedly connected to the top of the rotating piece 13 further enhances the convenience of the operation. When the cup cover 203 does not need to be opened, the rotating piece 13 is rotated to a suitable position, and at this time the protruding block 14 can be clamped with the connecting groove 15, which plays a role in fixing the rotating piece 13, so that the rotating piece 13 stably stays on the cup cover 203 and cannot be shaken at will. The sealing block 16 provided on the top rear side of the cup cover 203 further improves the sealing performance of the paper cup. When the cup cover 203 is covered on the outer sleeve cup 1, the sealing block 16 will be tightly attached to the cup mouth of the outer sleeve cup 1.

[0045] With reference to Figure 2 , Figure 3 and Figure 4 , the top front side of the cup cover 203 is provided with a socket groove one 18, and the inner wall of the socket groove one 18 is clamped with the rotating piece 13; the top rear side of the cup cover 203 is provided with a socket groove two 19, and the inner wall of the socket groove two 19 is clamped with the outer wall of the sealing block 16; the distal ends of the two fixed columns 9 are fixedly connected to the inner wall bottom of the outer sleeve cup 1 at equal intervals, and the distal sides of the two sliding grooves 12 are fixedly connected to the inner wall top of the storage cup 8 at equal intervals;

[0046] Specifically, the inner wall shape and size of the socket groove one 18 are accurately designed according to the outer shape of the rotating piece 13, so that after the rotating piece 13 is inserted, it can be tightly fitted. When the cup cover 203 needs to be cleaned, stored or the sealing block 16 does not need to play a role, the sealing block 16 is clamped into the socket groove two 19, and the equal interval fixation ensures the uniform distribution of force, so that the outer sleeve cup 1 can uniformly bear the weight from the storage cup 8 and the internal gift, avoiding structural deformation due to uneven force. The equal interval fixation ensures the stability and smoothness of the sliding block 11 when sliding in the sliding groove 12. When the consumer tears the connecting part of the outer sleeve cup 1 and the storage cup 8 along the sawtooth mouth 7, the sliding block 11 smoothly slides in the sliding groove 12, realizing the separation of the storage cup 8 and the outer sleeve cup 1, and facilitating the consumer to obtain the blind box gift.

[0047] Working principle: through the outer cup 1 as the basis support, select high strength toughness good material, can withstand daily external force, the layer 3 is located in the lower part of the inner wall of the outer cup 1, because air is a poor conductor of heat, can slow down heat transfer, avoid the user hand is scalded, the fixed ring 4 and the limit ring 6 cooperate with each other, position the inner paper cup 5 in the vertical and horizontal direction, ensure that the heat insulation structure is stable, the sawtooth port 7 utilizes the stress concentration principle, facilitates the user to tear open to open the storage cup 8, get the blind box gift, the fixed column 9 is fixed in the inner wall bottom of the outer cup 1, through the connecting rod 10 connects the sliding block 11, the sliding block 11 and the sliding groove 12 in the inner wall top of the storage cup 8 are connected, when the blind box is not opened, rely on friction and structural constraint, the storage cup 8 is closely connected with the outer cup 1, when opening, the sliding block 11 can slide in the sliding groove 12, realize the separation of the two, the whole paper cup combines the heat insulation function and the blind box interesting perfectly, brings good experience to the consumer;

[0048] And, through the fixed block 201 inner wall firm connection in the outer wall top of the outer cup 1, like solid base, provide stable support for the whole sealing mechanism 2, ensure accurate positioning of each component, the sealing groove 202 on the top of the fixed block 201 is very important, the sealing ring 206 shape size is accurately designed, when the cup cover 203 covers, can perfectly match with the sealing ring 206, prevent air and liquid leakage from the source, the cup cover 203 is an operating component, when the user covers, will drive the sealing plate 204 and the sealing ring 206 cooperate with the fixed block 201, the sealing groove 202, the pressure applied by the cover is more closely combined with the sealing structure, the sealing plate 204 is fixed at the bottom of the cup cover 203, so that the sealing ring 206 is uniformly pressed, and the sealing ring 206 can also block the side leakage, the installation groove 205 is at the bottom of the sealing plate 204, tightly fixes the sealing ring 206, the sealing ring 206 is extruded and elastically deformed, tightly fits the inner wall of the sealing groove 202, fills the gap, realizes efficient sealing.

[0049] Finally, it should be pointed out that: the above described only for the preferred embodiments of the present application, and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical scheme recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A heat-insulating paper cup with a blind box function, comprising an outer sleeve cup (1), characterized in that: The inner wall of the outer cup (1) is fixedly connected with a partition (3) at the lower part, the inner wall of the outer cup (1) is fixedly connected with a fixed ring (4) at the upper part, the inner wall of the outer cup (1) is provided with an inner paper cup (5), the outer wall of the inner paper cup (5) is provided with a limiting ring (6) at the middle part, the outer wall of the outer cup (1) is provided with a sawtooth opening (7) at the bottom, the bottom of the sawtooth opening (7) is provided with a storage cup (8), the inner wall of the outer cup (1) is fixedly connected with two fixed columns (9) at the left and right sides of the bottom, the outer wall of the two fixed columns (9) is fixedly connected with a connecting rod (10), the bottom of the two connecting rods (10) is fixedly connected with a sliding block (11) at the side away from each other, the inner wall of the storage cup (8) is fixedly connected with two sliding grooves (12) at the left and right sides of the top, the inner wall of the two sliding grooves (12) is slidably connected with the two sliding blocks (11), and the outer wall of the outer cup (1) is provided with a sealing mechanism (2).

2. The heat-insulating paper cup with a blind box function according to claim 1, characterized in that: The sealing mechanism (2) comprises a fixed block (201), the inner wall of the fixed block (201) is fixedly connected to the outer wall top end of the outer cup (1), the top of the fixed block (201) is provided with a sealing groove (202), the outer wall top end of the outer cup (1) is provided with a cup cover (203), the outer wall bottom of the cup cover (203) is fixedly connected with a sealing plate (204), the bottom of the sealing plate (204) is provided with a mounting groove (205), the inner wall of the mounting groove (205) is fixedly connected with a sealing ring (206), and the sealing ring (206) is clamped with the mounting groove (205).

3. The heat-insulating paper cup with a blind box function according to claim 2, characterized in that: The top front side of the cup cover (203) is rotatably connected with a rotating piece (13), and the top of the rotating piece (13) is fixedly connected with a protruding block (14).

4. The heat-insulating paper cup with a blind box function according to claim 3, characterized in that: The top middle part of the cup cover (203) is provided with a connecting groove (15), and the inner wall of the connecting groove (15) is clamped with the outer wall of the protruding block (14).

5. The heat-insulating paper cup with a blind box function according to claim 2, characterized in that: The top rear side of the cup cover (203) is provided with a sealing block (16), and the top of the sealing block (16) is fixedly connected with a decorative block (17).

6. The heat-insulating paper cup with a blind box function according to claim 3, characterized in that: The top front side of the cup cover (203) is provided with a socket groove I (18), and the inner wall of the socket groove I (18) is clamped with the rotating piece (13).

7. The heat-insulated paper cup with blind box function according to claim 5, characterized in that: The top rear side of the cup cover (203) is provided with a socket groove II (19), and the inner wall of the socket groove II (19) is clamped with the outer wall of the sealing block (16).

8. The heat-insulating paper cup with a blind box function according to claim 1, characterized in that: The distal ends of the two fixed columns (9) are fixedly connected to the inner wall bottom of the outer cup (1) at equal intervals, and the distal sides of the two sliding grooves (12) are fixedly connected to the inner wall top of the storage cup (8) at equal intervals.

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