Laundry detergent bottle cap capable of improving sealing performance

Abstract

A partition plate is provided with a liquid outlet communicated with an upper connecting cavity and a lower connecting cavity, the upper portion of the partition plate is provided with a flow guide annular plate, the flow guide annular plate is arranged around the first side of the liquid outlet and located in the upper connecting cavity, and a measuring cavity with a downward opening is formed in an upper cover. An unsealing rod is arranged in the measuring cavity, a sealing plate is rotationally installed on the lower portion of the partition plate, the sealing plate is located in the lower connecting cavity and is in sealing fit with the liquid outlet, the upper end of the unsealing rod is connected with the upper cover, the lower end of the unsealing rod penetrates through the liquid outlet to be connected with the sealing plate, and an easily-broken part is arranged on the unsealing rod. The upper cover and the sealing plate are connected through the unsealing rod, the sealing plate seals the liquid outlet, the sealing performance is improved, liquid leakage during transportation is prevented, the upper cover is rotated during unsealing, the unsealing rod and the sealing plate are separated through the easily-broken part, the sealing plate rotates downwards under the action of gravity to open the liquid outlet, and therefore the liquid outlet is opened while the upper cover is rotated to be opened. Time and labor are saved, and unsealing is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of bottle caps, in particular to a laundry detergent bottle cap with improved sealing performance. Background Art

[0002] Laundry detergent is a liquid washing product used for washing clothes. It has excellent washing effects and stable chemical properties. Currently, it has become an essential washing product for families. Traditional laundry detergent bottle caps are mainly divided into two types. One type installs a lower seat with a flow guide tube at the bottle mouth of the laundry detergent bottle, and then screws an upper cover on the lower seat. The flow guide tube on the lower seat facilitates the pouring out of the laundry detergent, and the upper cover seals the lower seat and simultaneously serves as a measuring cup. This structure is convenient to use, but only the upper cover seals the lower seat, and liquid leakage is likely to occur during logistics transportation. The other type screws a small bottle cap at the bottle mouth of the laundry detergent bottle, and then buckles a large bottle cap that is screwed to the laundry detergent bottle to form double sealing to improve the sealing performance and prevent liquid leakage during material transportation. However, the laundry detergent is not easy to pour out during use, and it is inconvenient to use. To solve the above problems, in the prior art, a pull ring is welded on the liquid outlet of the lower seat with a flow guide tube, and the lower seat is sealed by the pull ring, so as to form double sealing with the upper cover to improve the sealing performance. However, when unsealing, a relatively large amount of force is required to pull up and remove the pull ring, and the operation is inconvenient. On the other hand, the existing laundry detergent bottle caps do not have a flow limiting function, and it is difficult to control the flow rate of the poured laundry detergent. Therefore, it is necessary to make improvements. Summary of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a laundry detergent bottle cap with improved sealing performance, which can improve the sealing performance, prevent liquid leakage during transportation, is more labor-saving when unsealing, can limit the flow rate of the poured laundry detergent, and is convenient to control the dosage of the laundry detergent.

[0004] To achieve the above object, the technical solution adopted by the present utility model is as follows: A laundry detergent bottle cap for improving tightness, comprising a lower seat and an upper cover threadedly connected to the lower seat. The outer side surface of the lower part of the upper cover is provided with an external thread, the upper part of the lower seat is provided with an upper connection cavity with an upward opening, the lower part of the lower seat is provided with a lower connection cavity with a downward opening, the inner side wall of the upper connection cavity is provided with an upper internal thread for threadedly connecting with the upper cover, the inner side wall of the lower connection cavity is provided with a lower internal thread for threadedly connecting with the bottle mouth, a partition is arranged between the upper connection cavity and the lower connection cavity, the partition is provided with a liquid outlet communicating the upper connection cavity and the lower connection cavity, the upper part of the partition is provided with a diversion annular plate, the diversion annular plate is arranged around the first side of the liquid outlet and is located in the upper connection cavity, a measuring cavity with a downward opening is arranged in the upper cover, a sealing opening rod is arranged in the measuring cavity, a sealing plate is rotatably installed at the lower part of the partition, the sealing plate is located in the lower connection cavity and is in sealing cooperation with the liquid outlet, the upper end of the sealing opening rod is connected to the upper cover, the lower end of the sealing opening rod passes through the liquid outlet and is connected to the sealing plate, and a breakable part is arranged on the sealing opening rod.

[0005] In a further technical solution, the sealing opening rod comprises an upper connecting rod and a lower connecting rod. The upper end of the upper connecting rod is connected to the upper cover, the lower end of the upper connecting rod is snap-connected to the upper end of the lower connecting rod, and the lower end of the lower connecting rod passes through the liquid outlet and is connected to the sealing plate.

[0006] In a further technical solution, the partition is further provided with a return port communicating the upper connection cavity and the lower connection cavity. The return port is located on the second side of the liquid outlet and the return port communicates with the liquid outlet.

[0007] One side of the sealing plate is provided with a connecting convex part. The connecting convex part is located below the return port, and the connecting convex part is rotatably connected to the partition.

[0008] In a further technical solution, a connecting seat is further arranged at the lower part of the partition. The connecting convex part is rotatably installed on the connecting seat. A limiting part is arranged at the lower part of the connecting seat and extends below the connecting convex part. The limiting part is in limiting cooperation with the connecting convex part.

[0009] In a further technical solution, the limiting part is provided with a lower snap, and the lower part of the connecting convex part is provided with an upper clamping groove. The upper clamping groove is in snap-fit connection with the lower snap.

[0010] In a further technical solution, an upward-opening slot is arranged inside the upper connecting rod. The lower part of the upper connecting rod is provided with a first clamping groove and a second clamping groove at intervals. The first clamping groove is located above the second clamping groove. The first clamping groove and the second clamping groove respectively penetrate through the upper connecting rod in the horizontal direction and communicate with the slot.

[0011] The lower connecting rod includes a clamping section and a separating section, which are connected by a breakable part. Two elastic pieces are arranged at the upper end of the clamping section at intervals, and a clamping part is arranged at the upper end of each of the two elastic pieces. The clamping parts of the two elastic pieces are respectively clamped and connected with the first clamping groove or the second clamping groove.

[0012] In a further technical solution, a counterweight is arranged on the side of the sealing plate away from the connecting convex part.

[0013] In a further technical solution, a sealing gasket is arranged on the upper part of the sealing plate, and an avoidance hole for passing through the unsealing rod is arranged on the sealing gasket.

[0014] In a further technical solution, a first upper sealing ring is arranged between the upper cover and the partition board. A lower sealing ring for sealing the gap between the lower seat and the bottle mouth is arranged at the lower part of the upper cover. A limiting ring protruding outwards is arranged in the middle of the upper cover. The limiting ring is in limiting cooperation with the lower seat, and a second upper sealing ring is arranged between the limiting ring and the lower seat.

[0015] In a further technical solution, a capacity scale is arranged on the outer side surface of the unsealing rod.

[0016] After adopting the above structure, the advantages of the present utility model compared with the prior art are as follows: The upper cover and the sealing plate are connected by the unsealing rod, so that the sealing plate abuts against the partition board to form a seal for the liquid outlet. During transportation, the liquid outlet is sealed by the sealing plate, and the lower seat is sealed by the upper cover, thereby forming multiple seals, improving the sealing performance and preventing liquid leakage during transportation. When unsealing, the upper cover is rotated. When the upper cover rotates, the unsealing rod is separated from the sealing plate through the breakable part, and the sealing plate rotates downward under the action of gravity to open the liquid outlet, so that the liquid outlet is opened while the upper cover is rotated, saving time and effort and making unsealing more convenient; The sealing plate is rotatably installed on the partition board, and when pouring out the laundry detergent, the sealing plate can block part of the laundry detergent from flowing out of the liquid outlet, thereby playing a role in current limiting, reducing the flowing speed of the laundry detergent and facilitating the control of the dosage of the laundry detergent. Description of the Drawings

[0017] The present utility model will be further described below with reference to the drawings and embodiments.

[0018] Figure 1 is a schematic structural diagram of the present utility model;

[0019] Figure 2 is a schematic internal structural diagram of the present utility model;

[0020] Figure 3 is an exploded view of the present utility model;

[0021] Figure 4 is a schematic diagram of the state during transportation and sealing of the present utility model;

[0022] Figure 5 It is a schematic diagram of the state when the present utility model is unsealed;

[0023] Figure 6 It is a schematic diagram of the state after the upper cover is installed after the present utility model is unsealed.

[0024] In the figure:

[0025] 1 upper cover, 11 measuring chamber, 12 limiting ring;

[0026] 2 lower seat, 21 upper connection chamber, 22 lower connection chamber, 23 partition board, 231 liquid outlet, 232 return port, 24 diversion annular plate, 25 connection seat, 251 limiting part, 252 lower buckle;

[0027] 3 unsealing rod, 31 upper connecting rod, 311 slot, 312 first clamping groove, 313 second clamping groove, 32 lower connecting rod, 321 clamping section, 322 separating section, 323 breakable part, 324 elastic piece, 325 clamping part, 33 capacity scale;

[0028] 4 sealing plate, 41 connecting convex part, 42 upper clamping groove, 43 counterweight, 44 sealing gasket, 441 avoidance hole;

[0029] 51 first upper sealing ring, 52 second upper sealing ring, 53 lower sealing ring. Specific embodiments

[0030] The following are only the preferred embodiments of the present utility model, and do not limit the protection scope of the present utility model accordingly.

[0031] A laundry detergent bottle cap for improving sealing performance includes a lower seat 2 and an upper cover 1 threadedly connected to the lower seat 2. The outer side surface of the lower part of the upper cover 1 is provided with an external thread, the upper part of the lower seat 2 is provided with an upper connection chamber 21 with an upward opening, the lower part of the lower seat 2 is provided with a lower connection chamber 22 with a downward opening, the inner side wall of the upper connection chamber 21 is provided with an upper internal thread for threadedly connecting with the upper cover 1, the inner side wall of the lower connection chamber 22 is provided with a lower internal thread for threadedly connecting with the bottle mouth, a partition board 23 is arranged between the upper connection chamber 21 and the lower connection chamber 22, the partition board 23 is provided with a liquid outlet 231 communicating the upper connection chamber 21 and the lower connection chamber 22, the upper part of the partition board 23 is provided with a diversion annular plate 24, the diversion annular plate 24 is arranged around the first side of the liquid outlet 231 and is located in the upper connection chamber 21, a measuring chamber 11 with a downward opening is arranged in the upper cover 1, an unsealing rod 3 is arranged in the measuring chamber 11, a sealing plate 4 is rotatably installed at the lower part of the partition board 23, the sealing plate 4 is located in the lower connection chamber 22 and is in sealing cooperation with the liquid outlet 231, the upper end of the unsealing rod 3 is connected to the upper cover 1, the lower end of the unsealing rod 3 passes through the liquid outlet 231 and is connected to the sealing plate 4, and a breakable part 323 is arranged on the unsealing rod 3.

[0032] Traditional laundry detergent bottle caps only seal the lower base through the upper cover 1, and the liquid outlet 231 is in an open state, with poor sealing performance. It is prone to leakage during transportation. There are also some laundry detergent bottle caps that seal the liquid outlet 231 by welding a pull ring at the liquid outlet 231. When unsealing, it is necessary to open the upper cover 1 and then pull up the pull ring forcefully, which is inconvenient for unsealing operation. Moreover, there is no flow-limiting mechanism at the liquid outlet 231 of the traditional laundry detergent bottle cap, and it is difficult to control the flow rate of the poured laundry detergent. However, for the present utility model, as Figure 4 shown, the unsealing rod 3 connects the upper cover 1 and the sealing plate 4, so that the sealing plate 4 abuts against the partition 23 to seal the liquid outlet 231. During transportation, the liquid outlet 231 is sealed by the sealing plate 4, and the lower base 2 is sealed by the upper cover 1, thereby forming multiple seals, improving the sealing performance and preventing leakage during transportation. As Figure 5 shown, when unsealing, rotate the upper cover 1. When the upper cover 1 rotates, the unsealing rod 3 is separated from the sealing plate 4 through the breakable part 323. The sealing plate 4 rotates downward under the action of gravity to open the liquid outlet 231. Thus, the liquid outlet 231 is opened while rotating and opening the upper cover 1, which saves time and effort and is more convenient for unsealing; the sealing plate 4 is rotatably installed on the partition 23. When pouring out the laundry detergent, the sealing plate 4 can block part of the laundry detergent from flowing out of the liquid outlet 231, thereby playing a flow-limiting role, reducing the outflow speed of the laundry detergent, and facilitating the control of the amount of laundry detergent used.

[0033] Specifically, the unsealing rod 3 includes an upper connecting rod 31 and a lower connecting rod 32. The upper end of the upper connecting rod 31 is connected to the upper cover 1, the lower end of the upper connecting rod 31 is snap-connected to the upper end of the lower connecting rod 32, and the lower end of the lower connecting rod 32 passes through the liquid outlet 231 and is connected to the sealing plate 4. During production, first screw the upper cover 1 tightly onto the lower base 2, and then rotate the sealing plate 4 so that the lower connecting rod 32 passes through the liquid outlet 231 and is snap-connected to the upper connecting rod 31, thereby fixing the sealing plate 4, making the production more convenient and eliminating the need for welding operations.

[0034] Specifically, the partition 23 is also provided with a return port 232 that communicates the upper connection cavity 21 and the lower connection cavity 22. The return port 232 is located on the second side of the liquid outlet 231 and is communicated with the liquid outlet 231. A connecting convex part 41 is provided on one side of the sealing plate 4. The connecting convex part 41 is located below the return port 232, and the connecting convex part 41 is rotatably connected to the partition 23. Through the return port 232, it is convenient for the residual laundry detergent on the inner wall of the measuring cavity 11 to flow back into the bottle smoothly. And the sealing plate 4 is rotatably connected to the partition 23 through the connecting convex part 41. The connecting convex part 41 not only plays a connecting role but also seals the return port 232; the rotation axis of the sealing plate 4 is located on the second side of the liquid outlet 231, and the guiding annular plate 24 is located on the first side of the liquid outlet 231, thereby preventing the sealing plate 4 from blocking the residual laundry detergent on the inner wall of the bottle from flowing out when pouring out the laundry detergent, reducing the residue and avoiding waste.

[0035] Specifically, a connection seat 25 is further provided at the lower part of the partition plate 23. The connecting convex part 41 is rotatably installed on the connection seat 25. A limiting part 251 is provided at the lower part of the connection seat 25. The limiting part 251 extends below the connecting convex part 41, and the limiting part 251 is in limiting cooperation with the connecting convex part 41. After unsealing, the sealing plate 4 rotates and opens and abuts against the limiting part 251, so that an angle is formed between the sealing plate 4 and the partition plate 23. When the residual laundry detergent on the inner wall of the measuring cavity 11 flows back, it first touches the sealing plate 4 and flows obliquely into the bottle along the inclination angle of the sealing plate 4, so that the sealing plate 4 plays a role of buffering and guiding, avoiding the laundry detergent from directly dripping vertically into the bottle and reducing the water droplet sound when the laundry detergent flows back.

[0036] Specifically, the limiting part 251 is provided with a lower buckle 252, and the lower part of the connecting convex part 41 is provided with an upper clamping groove 42. The upper clamping groove 42 is in clamping cooperation with the lower buckle 252. When unsealing, the sealing plate 4 rotates downward by its own weight, so that the sealing plate 4 is buckled and fixed to the connection seat 25 through the lower buckle 252 and the upper clamping groove 42, avoiding the sealing plate 4 from rotating and completely blocking the liquid outlet 231 by its own weight when pouring out the laundry detergent, and the sealing plate 4 can form a fixed angle with the partition plate 23, so as to stabilize the flow rate when pouring out the laundry detergent and improve the reliability and stability.

[0037] Specifically, an upward-opening slot 311 is provided inside the upper connecting rod 31. The lower part of the upper connecting rod 31 is provided with a first clamping groove 312 and a second clamping groove 313 at intervals. The first clamping groove 312 is located above the second clamping groove 313. The first clamping groove 312 and the second clamping groove 313 respectively penetrate through the upper connecting rod 31 in the horizontal direction and communicate with the slot 311. The lower connecting rod 32 includes a clamping section 321 and a separating section 322. The clamping section 321 and the separating section 322 are connected by an easily breakable part 323. The upper end of the clamping section 321 is provided with two elastic pieces 324 arranged at intervals. The upper ends of the two elastic pieces 324 are respectively provided with a clamping part 325. The clamping parts 325 of the two elastic pieces 324 are respectively clamped and connected with the first clamping groove 312 or the second clamping groove 313. During production, the upper connecting rod 31 and the lower connecting rod 32 are connected. The two elastic pieces 324 are inserted into the slot 311, and the clamping parts 325 of the two elastic pieces 324 are clamped on the first clamping groove 312 to complete the connection; as Figure 6As shown, after unsealing, the clamping section 321 of the lower connecting rod 32 is pulled out until the clamping parts 325 of the two elastic pieces 324 are buckled on the second clamping groove 313, so as to extend the length of the unsealing rod 3. After tightening the upper cover 1, the lower end of the clamping section 321 of the lower connecting rod 32 passes through the liquid outlet 231 and abuts against the sealing plate 4, thus preventing the sealing plate 4 from sticking to the partition plate 4 through the laundry detergent, ensuring that the laundry detergent can flow back, and also ensuring that the sealing plate 4 can be buckled and connected with the connecting seat 25, avoiding the failure of the buckling connection due to the insufficient self-weight of the sealing plate 4, and improving the reliability and stability.

[0038] Specifically, a counterweight 43 is arranged on one side of the sealing plate 4 away from the connecting convex part 41. The self-weight of the sealing plate 4 is increased through the counterweight 43, and the success probability of the buckling connection between the sealing plate 4 and the connecting seat 25 is improved.

[0039] Specifically, a sealing gasket 44 is arranged on the upper part of the sealing plate 4, and an avoidance hole 441 for passing through the unsealing rod 3 is formed in the sealing gasket 44. The sealing performance of the sealing plate 4 is further improved through the sealing gasket 44. The sealing gasket 44 is fixed by sleeving on the unsealing rod 3 through the avoidance hole 441, with a simple structure, low cost and convenient production.

[0040] Specifically, a first upper sealing ring 51 is arranged between the upper cover 1 and the partition plate 23, a lower sealing ring 53 for sealing the gap between the lower seat 2 and the bottle mouth is arranged at the lower part of the upper cover 1, a limiting ring 12 protruding outwards is arranged in the middle of the upper cover 1, the limiting ring 12 is in limiting cooperation with the lower seat 2, and a second upper sealing ring 52 is arranged between the limiting ring 12 and the lower seat 2. The first upper sealing ring 51 performs the first-stage sealing between the upper cover 1 and the lower seat 2, and the limiting ring 12 and the second upper sealing ring 52 perform the second-stage sealing between the upper cover 1 and the lower seat 2, thereby improving the sealing performance between the upper cover 1 and the lower seat 2.

[0041] Specifically, a capacity scale 33 is arranged on the outer side surface of the unsealing rod 3. The capacity of the laundry detergent in the measuring chamber 11 is measured by observing the capacity scale 33, which is convenient for accurately dispensing the laundry detergent and controlling the dosage of the laundry detergent. The capacity scale 33 is arranged as a protrusion on the outer side wall of the unsealing rod 3 for easy observation.

[0042] When the present utility model is unsealed, by rotating the upper cover 1, when the upper cover 1 rotates, the unsealing rod 3 is separated from the sealing plate 4 through the breakable part 323. The sealing plate 4 rotates downward under the action of gravity to open the liquid outlet 231. Subsequently, the clamping section 321 of the lower connecting rod 32 is pulled out until the clamping parts 325 of the two elastic pieces 324 are buckled on the second clamping groove 313, so as to extend the length of the unsealing rod 3. After tightening the upper cover 1, the lower end of the clamping section 321 of the lower connecting rod 32 passes through the liquid outlet 231 and abuts against the sealing plate 4, so that the lower buckle 252 and the upper clamping groove 42 are buckled and connected, thereby buckling and fixing the sealing plate 4 to the connecting seat 25.

[0043] The above content is only a preferred embodiment of the present utility model. For those of ordinary skill in the art, based on the idea of the present utility model, there will be changes in the specific implementation manner and application scope. The content of this specification should not be construed as a limitation to the present utility model.

Claims

1. A laundry detergent bottle cap for improving sealing performance, comprising a lower seat (2) and an upper cover (1) threadedly connected to the lower seat (2), characterized in that: The outer side surface of the lower part of the upper cover (1) is provided with an external thread. The upper part of the lower seat (2) is provided with an upper connection cavity (21) with an upward opening. The lower part of the lower seat (2) is provided with a lower connection cavity (22) with a downward opening. The inner side wall of the upper connection cavity (21) is provided with an upper internal thread for threaded connection with the upper cover (1). The inner side wall of the lower connection cavity (22) is provided with a lower internal thread for threaded connection with the bottle mouth. A partition plate (23) is arranged between the upper connection cavity (21) and the lower connection cavity (22). The partition plate (23) is provided with a liquid outlet (231) communicating the upper connection cavity (21) and the lower connection cavity (22). The upper part of the partition plate (23) is provided with a diversion annular plate (24). The diversion annular plate (24) is arranged around the first side of the liquid outlet (231) and is located in the upper connection cavity (21). A measurement cavity (11) with a downward opening is arranged in the upper cover (1). A sealing opening rod (3) is arranged in the measurement cavity (11). The lower part of the partition plate (23) is rotatably provided with a sealing plate (4). The sealing plate (4) is located in the lower connection cavity (22) and is in sealing cooperation with the liquid outlet (231). The upper end of the sealing opening rod (3) is connected to the upper cover (1). The lower end of the sealing opening rod (3) passes through the liquid outlet (231) and is connected to the sealing plate (4). An easily breakable part (323) is arranged on the sealing opening rod (3).

2. The laundry detergent bottle cap for improving tightness according to claim 1, wherein: The sealing opening rod (3) comprises an upper connecting rod (31) and a lower connecting rod (32). The upper end of the upper connecting rod (31) is connected to the upper cover (1). The lower end of the upper connecting rod (31) is snap-connected to the upper end of the lower connecting rod (32). The lower end of the lower connecting rod (32) passes through the liquid outlet (231) and is connected to the sealing plate (4).

3. The laundry detergent bottle cap for improving tightness according to claim 2, wherein: The partition plate (23) is further provided with a return port (232) communicating the upper connection cavity (21) and the lower connection cavity (22). The return port (232) is located on the second side of the liquid outlet (231) and the return port (232) communicates with the liquid outlet (231). One side of the sealing plate (4) is provided with a connecting convex part (41). The connecting convex part (41) is located below the return port (232). The connecting convex part (41) is rotatably connected to the partition plate (23).

4. The laundry detergent bottle cap for improving the sealing performance according to claim 3, characterized in that: The lower part of the partition plate (23) is further provided with a connecting seat (25). The connecting convex part (41) is rotatably installed on the connecting seat (25). The lower part of the connecting seat (25) is provided with a limiting part (251). The limiting part (251) extends below the connecting convex part (41). The limiting part (251) is in limiting cooperation with the connecting convex part (41).

5. The laundry detergent bottle cap for improving the sealing performance according to claim 4, wherein: The limiting part (251) is provided with a lower snap (252). The lower part of the connecting convex part (41) is provided with an upper clamping groove (42). The upper clamping groove (42) is in clamping cooperation with the lower snap (252).

6. The laundry detergent bottle cap for improving tightness according to claim 5, wherein: The interior of the upper connecting rod (31) is provided with a slot (311) with an opening facing downward. The lower part of the upper connecting rod (31) is provided with a first clamping groove (312) and a second clamping groove (313) at intervals. The first clamping groove (312) is located above the second clamping groove (313). The first clamping groove (312) and the second clamping groove (313) respectively penetrate the upper connecting rod (31) in the horizontal direction and communicate with the slot (311). The lower connecting rod (32) includes a clamping section (321) and a separating section (322). The clamping section (321) and the separating section (322) are connected by the breakable part (323). The upper end of the clamping section (321) is provided with two elastic pieces (324) arranged at intervals. The upper ends of the two elastic pieces (324) are respectively provided with a clamping part (325). The clamping parts (325) of the two elastic pieces (324) are respectively snap-connected with the first clamping groove (312) or the second clamping groove (313).

7. The laundry detergent bottle cap for improving sealing performance according to claim 5, wherein: A counterweight (43) is provided on the side of the sealing plate (4) away from the connecting convex part (41).

8. A laundry detergent bottle cap for improving sealing performance according to any one of claims 1 to 7, characterized in that: A sealing gasket (44) is provided on the upper part of the sealing plate (4). The sealing gasket (44) is provided with an avoidance hole (441) for passing through the unsealing rod (3).

9. The liquid detergent bottle cap for improving the sealing performance according to claim 8, wherein: A first upper sealing ring (51) is provided between the upper cover (1) and the partition plate (23). A lower sealing ring (53) for sealing the gap between the lower seat (2) and the bottle mouth is provided at the lower part of the upper cover (1). A limiting ring (12) protruding outward is provided in the middle of the upper cover (1). The limiting ring (12) is in limiting cooperation with the lower seat (2). A second upper sealing ring (52) is provided between the limiting ring (12) and the lower seat (2).

10. A laundry detergent bottle cap for improving sealing performance according to claim 8, wherein: A capacity scale (33) is provided on the outer side surface of the unsealing rod (3).

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