Automatic toilet cleaner releasing device

Abstract

An automatic toilet cleaner releasing device comprises a bottle body (1), a bearing frame (2), a valve element (3), a floating block (4) and a balancing weight (5), liquid toilet cleaner is contained in the bottle body, the bearing frame is installed on the lower portion of the bottle body and mainly plays a supporting role, the balancing weight is installed at the bottom of the bearing frame, the density of the balancing weight is relatively large, the weight of the whole device can be increased, it is guaranteed that the device sinks to the bottom stably, and the service life of the device is prolonged. The valve element and the floating block are fixed in a clamped mode, and the floating block is installed in the bearing frame in a sliding and embedded mode through the valve element. In the flushing and water storage process of the water tank, the floating block moves up and down due to the height of the water level, and can float up during water storage and descend during flushing, so that the valve element is driven to slide up and down relative to the supporting frame and the bottle body, the toilet cleaning liquid in the bottle body is discharged into the water tank, and the toilet cleaning liquid is automatically released at a controllable amount during flushing every time.

Description

Technical Field

[0001] The utility model relates to an automatic releasing device for a toilet cleaning agent. Background Art

[0002] Currently, common toilet cleaning products on the market are generally solid. When used, the solid toilet cleaning product is placed in the toilet tank, where it slowly dissolves into the water, forming a toilet cleaning mixture. When the toilet is flushed, the toilet is cleaned and deodorized. However, once placed in the tank, these solid toilet cleaning products are in direct contact with water. Even if the toilet is not used for an extended period, they continue to dissolve, resulting in an excessively high concentration of the toilet cleaning mixture in the tank and unnecessary waste.

[0003] There are also liquid toilet cleaning products on the market. To use, the liquid toilet cleaning liquid is evenly poured into the toilet bowl, the inner wall of the toilet bowl is cleaned with a cleaning brush, and the toilet bowl is left to sit for a period of time before flushing. This flushes out the toilet cleaning liquid and the cleaned wastewater, achieving the purpose of cleaning and deodorizing. However, the use of such liquid toilet cleaning products is relatively cumbersome and they are usually used for regular cleaning of toilets rather than daily cleaning. Utility Model Content

[0004] Technical problems to be solved by the utility model

[0005] The present application is formed to solve the above technical problems, and its purpose is to provide an automatic release device for toilet cleaning agent, which can automatically release toilet cleaning liquid in a controllable amount during each flush.

[0006] Technical solutions used to solve technical problems

[0007] The present application provides an automatic release device for toilet cleaner, comprising: a bottle body for containing liquid toilet cleaner, comprising a bottle body and a bottle mouth portion opening downward; a support frame connected to the bottom of the bottle body through the bottle mouth portion; a valve core inserted into the support frame in a manner capable of relative sliding along the axial direction; a floating block non-slidingly connected to the valve core; and a counterweight block installed at the bottom of the support frame; the device is characterized in that:

[0008] The support frame is formed with a liquid outlet passage that is connected in an upper and lower direction; the valve core includes: a valve stem, which is axially slidably inserted into the support frame; a limit ring, which extends radially outward from the upper end of the valve stem and has a diameter larger than the liquid outlet passage; a plurality of flow limiting rings, which extend circumferentially on the outer peripheral surface of the valve stem and have a diameter smaller than the liquid outlet passage; and a connecting hole, which passes through the center of the valve stem along the axis; the float includes: a float body, which extends radially and is slidably mounted inside the support frame; and a connecting rod, which is inserted into the connecting hole and fixed to the valve core.

[0009] Preferably, a plurality of water passages are provided on the wall surface of the support frame at intervals along the circumferential direction, a plurality of through holes are provided on the floating block, and a plurality of channels are provided on the bottom of the counterweight block.

[0010] Preferably, the flow limiting baffle rings are arranged on the valve stem at intervals along the axial direction, and there are small gaps between them and the inner wall of the extension tube, and annular grooves are formed between adjacent flow limiting baffle rings.

[0011] Preferably, a pair of circumferentially opposite notches are formed on one of the current limiting baffle rings, and a pair of circumferentially opposite flattened positions are formed on the adjacent current limiting baffle rings. The notches and the flattened positions are aligned in the circumferential direction, and adjacent notches and flattened positions are staggered 90° in the circumferential direction.

[0012] Preferably, the diameter of the connecting rod is smaller than the inner diameter of the connecting hole, a convex ring protruding axially is formed at the top of the connecting hole, and a groove with a reduced diameter is formed at the top of the connecting rod. The connecting rod is inserted into the connecting hole, and the groove engages with the convex ring.

[0013] Preferably, a plug body portion with an enlarged diameter is formed at the bottom of the connecting rod, and the diameter of the plug body portion is the same as the diameter of the extension tube.

[0014] Preferably, a clearance ring groove that shrinks radially inward is formed on the outer circumferential surface of the bottle body, and a limit ring is formed on the top of the wall of the support frame for engaging with the clearance ring groove; the head and tail ends of the limit ring are separated from each other, and are connected to the wall of the support frame through several connection points. When one end of the limit ring is pulled and torn, the connection points are broken one by one, and the limit ring is separated from the support frame.

[0015] Preferably, a protruding tooth portion standing upright is formed in the support portion at a position opposite to the bottle mouth portion.

[0016] Preferably, the counterweight block is made of weighted PP material, or weighted PP material added with calcium carbonate material.

[0017] Preferably, the opening of the bottle mouth is covered and closed by a film when not in use, and the film is an aluminum foil or a plastic film.

[0018] According to the automatic release device for toilet cleaning agent described in the present technical solution, by making the diameter of the position limiting baffle ring larger than the liquid outlet passage and the diameter of the flow limiting baffle ring smaller than the liquid outlet passage, a narrow annular gap is formed, through which the toilet cleaning liquid can pass, and the amount of toilet cleaning liquid passing through each time can be limited, and the exchange (backflow) between the toilet cleaning liquid in the bottle and the water in the water tank can be limited. In addition, by providing multiple flow limiting baffle rings and staggering the gaps of the flow limiting baffle rings in the circumferential direction, mutually connected but circuitous diversion channels are formed, so that the toilet cleaning liquid can be slowly released, and the total amount of toilet cleaning liquid discharged each time can be further limited. In addition, by providing a number of water passages on the outer periphery of the support frame and providing a number of holes that pass through the inner and outer peripheries at the bottom of the counterweight block, it is beneficial for the toilet cleaning liquid to be quickly mixed into the water tank. In addition, a clearance ring groove is formed on the bottle body, a position limiting ring is formed on the support frame, and a convex tooth portion is formed on the surface opposite to the bottle mouth, so that the toilet cleaning device can be quickly unsealed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is an exploded perspective view of an automatic toilet cleaning agent release device according to one embodiment of the present application;

[0020] Figure 2 It is a three-dimensional diagram of an automatic release device for toilet cleaning agent according to one embodiment of the present application;

[0021] Figure 3 Cut along the diameter Figure 2 A cross-sectional view after the device is installed;

[0022] Figure 4 It is shown enlarged Figure 3 A local enlarged view of the corresponding structure;

[0023] Figure 5 It is further enlarged to show Figure 3 A local enlarged view of the corresponding structure;

[0024] Figure 6 It is a schematic diagram of the structure of the bottle;

[0025] Figure 7 is a three-dimensional cross-sectional view of the support frame;

[0026] Figure 8 It is a three-dimensional cross-sectional view of the floating block;

[0027] Figure 9 It is a three-dimensional diagram of the valve core;

[0028] Figure 10 This is the main view of the valve core;

[0029] Figure 11 It is a three-dimensional diagram of the counterweight;

[0030] Figure 12 It is a structural diagram when the valve core slides to the lowest position;

[0031] Figure 13 It is a structural diagram when the valve core slides to the highest position.

[0032] Reference numerals

[0033] Bottle body 1; bottle mouth 11; external threaded portion 12; recessed ring groove 13; opening 14;

[0034] Support frame 2; water passage 21; limiting ring 22; bottle mouth connecting portion 23; internal thread portion 24; cylindrical portion 25; end surface portion 26; convex tooth portion 27; liquid outlet passage 28; extension tube 281; lower end portion 29; connecting structure 210;

[0035] Valve core 3; valve stem 31; first retaining ring 32; second retaining ring 33; notch 331; third retaining ring 34; flat position 341; ring groove 35; connecting hole 36;

[0036] Floating block 4; first ring body 41; second ring body 42; first connecting portion 43; third ring body 44; second connecting portion 45; connecting rod 46; slot 461; third connecting portion 47; through hole 48; plug body 481;

[0037] Counterweight 5; connecting portion 51. DETAILED DESCRIPTION

[0038] The present application will be further described below in conjunction with the following embodiments. It should be understood that the following embodiments are only used to illustrate the present application, not to limit the present application. In the figures, the same or corresponding reference numerals represent the same components, and repeated descriptions are omitted.

[0039] Furthermore, unless otherwise expressly specified or limited, terms indicating orientation or positional relationships are used solely for descriptive purposes and do not limit the structural orientation or positional relationships. The terms "mounted," "connected," and "connected" should be interpreted broadly. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. A person of ordinary skill in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0040] refer to Figures 1 to 11 One embodiment of the present application discloses an automatic release device for toilet cleaning agent (hereinafter sometimes referred to as the device), including a bottle body 1, a support frame 2, a valve core 3, a float 4 and a counterweight 5.

[0041] <Bottle 1>

[0042] The bottle 1 is a component for containing toilet cleaning liquid (ie, liquid toilet cleaning agent), and its material can be, for example, plastic, preferably PP. Figure 6As shown, the bottle body 1 includes: a bottle body, a bottle mouth portion 11 , an external thread portion 12 , a relief ring groove 13 and an opening 14 .

[0043] The bottle body 1 is shaped like an inverted round bottle, with an outwardly protruding cylindrical mouth portion 11 formed in the center of its lower surface. The mouth portion 11 has an external threaded portion 12 formed on its outer circumference, and an opening 14 formed at its lower end for connecting the inside and outside of the bottle body 1. In the initial state (i.e., unopened and unused), the opening 14 is covered and sealed with a film, thereby sealing the toilet cleaning liquid in the bottle body 1 and preventing leakage during packaging, transportation, and storage. The film can be, for example, aluminum foil or plastic film.

[0044] Figure 6 The bottle body 1 is turned upside down to more clearly show the structural details around the bottle mouth. Figure 2 As shown, the bottle mouth 11 faces downward and is screwed into the support frame 2 described later.

[0045] In addition, a clearance ring groove 13 may be formed on the outer circumference of the bottle body 1. The clearance ring groove 13 is tapered radially inward and is formed around the entire outer circumference of the bottle body 1 from the lower side of the outer circumference to the lower surface. It is used to nest with the retaining ring 22 of the support frame 2 described later.

[0046] In addition, in this embodiment, each structure is designed to be a relatively uniform shape for the overall shape of the product, but the shape of the bottle body 1 is not limited to the above. As long as it can accommodate toilet cleaning liquid and lock with the support frame 2 described later, there is no special limitation.

[0047] <Support Frame 2>

[0048] The support frame 2 is coaxially mounted on the lower side of the bottle body 1 and is formed into a cylindrical shape with substantially the same diameter as the bottle body 1. The support frame 2 is made of plastic, preferably PP. Figure 7 As shown, the support frame 2 includes: a water passage 21, a limiting ring 22, a bottle mouth connecting portion 23, an internal threaded portion 24, a cylindrical portion 25, an end surface portion 26, a convex tooth portion 27, an extension tube 281, a lower end portion 29 and a connecting structure 210.

[0049] A plurality of water passages 21 are formed at intervals along the circumference of the cylindrical wall of the support frame 2 to allow the toilet cleaning liquid to quickly flow out of the device and into the water tank. Therefore, although this embodiment shows one type of opening, this is not limiting. Any opening can be used as long as it facilitates the rapid flow of the toilet cleaning liquid.

[0050] An annular retaining ring 22 is formed at the top of the cylindrical wall of the support frame 2, which is designed to engage with the retaining groove 13 of the bottle body 1. The retaining ring 22 can be integrally formed with the wall of the support frame 2 and has a quickly removable structure: only a few connection points with limited strength are formed between the retaining ring 22 and the top of the wall of the support frame 2, while the rest of the connection is separated. At the same time, the end of the retaining ring 22 is separated from each other. When one end of the retaining ring 22 is pulled and torn, the connection points are broken one by one, and the retaining ring 22 is easily separated from the support frame 2.

[0051] In addition, in this embodiment, since the structure of the clearance ring groove 13 and the structure of the limit ring 22 are adapted to each other, in the initial state, the limit ring 22 is arranged outside the clearance ring groove 13, and the wall surface of the support frame 2 is basically flush with the outer peripheral surface of the bottle body 1, so that the entire device has a smooth outer peripheral contour.

[0052] A connecting structure 210 is provided between the water passage 21 and the limiting ring 22 and extends radially inward from the inner surface of the wall of the support frame 2. In this embodiment, the connecting structure 210 is a hollow disc integrally formed with the wall of the support frame 2.

[0053] At the end of the connection structure 210 away from the wall (i.e., close to the axis), a cylindrical bottle mouth connection portion 23 is formed that protrudes downward. The bottle mouth connection portion 23 is coaxial with the support frame 2 (i.e., the bottle body 1), and an internal thread portion 24 is formed on the inner circumference. In this embodiment, the bottle mouth connection portion 23 is adapted to the bottle mouth portion 11, and the internal thread portion 24 of the bottle mouth connection portion 23 is screwed into the external thread portion 12 of the bottle mouth portion 11, so that the support frame 2 and the bottle body 1 can be connected and fixed (see Figure 3 ).

[0054] An end surface portion 26 is provided radially inwardly extending from the end (i.e., the lower end) of the bottle mouth connection portion 23 away from the bottle body 1. In this embodiment, the end surface portion 26 is similar to the connection structure 210 and is a hollow disc integrally formed with the bottle mouth connection portion 23.

[0055] A cylindrical portion 25 is formed at an end portion of the bottle mouth connecting portion 23 close to the axis thereof. The cylindrical portion 25 is coaxial with the bottle mouth connecting portion 23 and projects downward.

[0056] At the end of the cylindrical portion 25 away from the bottle body 1 (i.e., the lower end), a lower end portion 29 is extended radially inward, and a cylindrical extension tube 281 coaxial with the cylindrical portion 25 is formed at the end of the lower end portion 29 close to the axis, and a liquid outlet passage 28 for the toilet cleaning liquid to pass through is formed inside the extension tube 281.

[0057] In this embodiment, the support frame 2 is formed into a vertically connected structure via the liquid outlet passage 28. Furthermore, the connecting structure 210, the bottle mouth connection portion 23, the end surface portion 26, the cylindrical portion 25, the lower end portion 29, and the extension tube 281 are sequentially connected and integrally formed, further forming a stepped support structure. Furthermore, the support frame 2 is threadedly connected to the bottle body 1 via the bottle mouth connection portion 23 and is axially slidably connected to the valve core 3, described later, via the extension tube 281.

[0058] Furthermore, a protruding tooth portion 27 is integrally formed on the surface of the end face portion 26 facing the bottle mouth 11, extending vertically from this surface. In this embodiment, the protruding tooth portion 27 is based on a cylindrical structure, further forming a circular serration structure toward the opening 14. This structure is used to pierce the film covering the opening 14 when a force is applied. However, the specific structure of the protruding tooth portion 27 is not limited to this; any structure capable of damaging the film covering the opening 14 is sufficient.

[0059] <About the quick-release opening structure>

[0060] In this embodiment, the clearance ring groove 13 of the bottle body 1 cooperates with the limiting ring 22 and the protruding tooth portion 27 of the support frame 2 to form a structure that can be quickly opened.

[0061] Specifically, during packaging, transportation and storage, the device of the present application is in an initial state, and the opening 14 of the bottle body 1 is completely closed by the film. At this time, although the support frame 2 is screwed to the bottle mouth portion 11 of the bottle body 1 through the bottle mouth connecting portion 23, it is not screwed to a fastened position, but is screwed to a relatively stable position that is not easy to loosen. At the same time, the limiting ring 22 abuts against the stepped surface of the give way ring groove 13, so that the relative stability of the two can be further enhanced through the nested structure of the limiting ring 22 and the give way ring groove 13. Moreover, in this relatively fixed position, the convex tooth portion 27 is separated from the film at the opening 14 by a certain interval.

[0062] When in use, as mentioned above, by pulling one end of the limiting ring 22, the limiting ring 22 can be pulled apart from the support frame 2, so that the support frame 2 can be rotated to further screw it into the bottle body 1. During the rotation process, the bottle body 1 and the support frame 2 continue to approach each other until the gap between the convex tooth portion 27 and the opening 14 disappears, so that the convex tooth portion 27 pierces the film at the opening 14, thereby realizing the opening of the bottle body 1. At the same time, the bottle mouth connecting portion 23 of the support frame 2 and the bottle mouth portion 11 of the bottle body 1 are also screwed into the fastening position accordingly.

[0063] Subsequently, in order to prevent the internal toilet cleaning liquid from flowing out, the device can be inverted and placed in the water tank of the toilet. The device entering the water tank in an inverted posture can quickly adjust its posture and start working through the floating block 4 and the counterweight block 5 described later.

[0064] <Spool 3>

[0065] The valve core 3 is coaxial with the bottle body 1 and the support frame 2 and can be slidably inserted into the extension tube 281 of the support frame 2, and passes through the liquid outlet passage 28 in the vertical direction. The material thereof can be, for example, plastic, preferably PP. Specifically, as Figure 9 、 10 As shown, the valve core 3 includes: a valve stem 31 , a first retaining ring 32 , a second retaining ring 33 , a notch 331 , a third retaining ring 34 , a flat portion 341 , an annular groove 35 and a connecting hole 36 .

[0066] The valve stem 31 is a vertical rod coaxially arranged with the bottle body 1 and the support frame 2. A first retaining ring 32 extending radially outward is formed at the upper end. In addition, a coaxial connecting hole 36 is opened along the axis at the center for the floating block 4 described later to be inserted therethrough. A convex ring slightly protruding axially is also formed at the top of the connecting hole 36 for engaging with the floating block 4 described later.

[0067] The first retaining ring 32 (equivalent to a limit retaining ring) is integrally formed with the valve stem 31, and has a diameter slightly smaller than the inner diameter of the cylindrical portion 25 of the support frame 2 and larger than the inner diameter of the extension tube 281. Therefore, when the valve stem 31 of the valve core 3 passes through the liquid outlet passage 28 in the up-down direction, the first retaining ring 32 is located within the cylindrical portion 25 and above the extension tube 281. In addition, when the valve stem 31 of the valve core 3 slides within the extension tube 281 relative to the support frame 2, since the diameters of the first retaining ring 32 and the valve stem 31 are slightly smaller than the inner diameter of the cylindrical portion 25, they can be smoothly guided axially by the cylindrical portion 25. Since the diameter of the first retaining ring 32 is larger than the inner diameter of the extension tube 281, the first retaining ring 32 can not only limit the downward relative sliding, but also cover the extension tube 281 from the top, thereby sealing the liquid outlet passage 28.

[0068] At least two second and third retaining rings 33, 34 (equivalent to current limiting retaining rings) are formed on the outer circumference of the valve stem 31, extending circumferentially. The second and third retaining rings 33, 34 are spaced axially apart on the valve stem 31. They have the same diameter and are slightly smaller than the inner diameter of the extension tube 281. An annular groove 35 is formed between adjacent second and third retaining rings 33, 34. The second retaining ring 33 has a pair of circumferentially opposed notches 331, and the third retaining ring 34 has a pair of circumferentially opposed flattened portions 341.

[0069] In this embodiment, each notch 331 and each flattened position 341 are aligned in the circumferential direction, and adjacent notches 331 and flattened positions 341 are staggered by 90° in the circumferential direction. However, the specific structure is not limited thereto. As long as interconnected but winding liquid diversion channels can be formed and backflow can be effectively prevented, the configuration can be flexible. For example, only one notch 331 is formed on the second baffle ring 33, and only one flattened position 341 is formed on the third baffle ring 34, and the two are staggered by 180°.

[0070] <About sustained-release and anti-reflux structure>

[0071] There is a gap between the first baffle ring 32 and the cylindrical portion 25, but the gap is narrow. There is also a gap between the extension tube 281 and the second baffle ring 33 and the third baffle ring 34, and the gap is narrow. Therefore, the release amount and flow rate of the toilet cleaning liquid are limited, and the toilet cleaning liquid can be slowly released.

[0072] Furthermore, by making the axial length of the annular groove 35 smaller than the axial depth of the extension tube 281, and the notch 331 of the second retaining ring 33 and the flat position 341 of the adjacent third retaining ring 34 are arranged at an angle staggered in the circumferential direction, when the valve stem 31 of the valve core 3 slides axially along the extension tube 281, the second retaining ring 33 or the third retaining ring 34 can separate the two adjacent annular grooves 35, and the toilet cleaning liquid will flow between the two annular grooves 35 through the notch 331 or the flat position 341.

[0073] As a result, a connected but tortuous liquid diversion channel is formed between the surface of the valve core 3 and the inner wall of the extension tube 281 via the inner wall of the extension tube 281, the annular groove 35, the notch 331, and the flattened portion 341. This not only further prevents the rapid and large-scale outflow of toilet cleaning liquid through the valve core 3, but also prevents water in the water tank from flowing back into the bottle body 1 through at least two barriers, thus preventing the toilet cleaning liquid in the bottle body 1 from being diluted. In addition, the above effect can be further enhanced by tightening the bottle mouth connection portion 23 and the bottle mouth portion 11 and the obstruction of the convex teeth 27.

[0074] <Floating Block 4>

[0075] The float 4 is slidably mounted inside the support frame 2 in a nested manner through the valve core 3. The material of the float 4 can be, for example, plastic, preferably PP. Figure 8 As shown, the float 4 includes a first ring body 41, a second ring body 42, a first connecting portion 43, a third ring body 44, a second connecting portion 45, a connecting rod 46, a slot 461, a third connecting portion 47, a through hole 48, and a plug portion 481. The float 4 has a structure that matches the stepped structure of the support frame 2, wherein the first ring body 41, the second ring body 42, the third ring body 44, the first connecting portion 43, the second connecting portion 45, and the third connecting portion 47 extend radially to generate buoyancy (equivalent to the main body of the float).

[0076] The first ring body 41 is cylindrical and extends axially coaxially with the support frame 2. It slightly tapers radially as it extends axially. Furthermore, the outer diameter of the first ring body 41 at its widest point is slightly smaller than the inner diameter of the support frame 2. This allows the first ring body 41 to slidably abut the inner cylindrical wall of the support frame 2 at a position lower than the water passage 21.

[0077] The first connecting portion 43 extends radially inward from the end (ie, the upper end) of the first ring body 41 close to the bottle body 1 . In this embodiment, the first connecting portion 43 is in the shape of a hollow disc integrally formed with the first ring body 41 .

[0078] The second ring body 42 extends downward from the end of the first connecting portion 43 near the axis. It has a cylindrical shape coaxial with the first ring body 41 and is integrally formed with the first connecting portion 43. Furthermore, the inner diameter of the second ring body 42 is slightly larger than the outer diameter of the bottle mouth connecting portion 23, thereby allowing the bottle mouth connecting portion 23 of the support frame 2 to fit within it.

[0079] The second connecting portion 45 extends radially inward from the end (ie, the lower end) of the second ring body 42 away from the bottle body 1 . In this embodiment, the second connecting portion 45 is in the shape of a hollow disc integrally formed with the second ring body 42 .

[0080] The third ring body 44 extends downward from the end of the second connecting portion 45 that is closest to the axis. It has a cylindrical shape coaxial with the second ring body 42 and is integrally formed with the second connecting portion 45. Furthermore, the inner diameter of the third ring body 44 is slightly larger than the outer diameter of the cylindrical portion 25, allowing the cylindrical portion 25 of the support frame 2 to fit therein.

[0081] The third connecting portion 47 extends radially inward from the end (i.e., the lower end) of the third ring body 44 away from the bottle body 1. In this embodiment, the third connecting portion 47 is a disc-shaped piece integrally formed with the second ring body 42, and is provided with at least one through hole 48 for the toilet cleaning liquid to flow out, and a connecting rod 46 protruding axially upward is formed at the center of the circle (i.e., the axis).

[0082] The diameter of the connecting rod 46 is slightly smaller than the inner diameter of the connecting hole 36. It has a reduced-diameter retaining groove 461 formed at the top and an expanded-diameter plug portion 481 formed at the bottom. The diameter of the plug portion 481 is the same as the diameter of the extension tube 281, that is, slightly larger than the diameters of the second and third retaining rings 33 and 34. In this embodiment, the plug portion 481, the connecting rod 46, and the third connecting portion 47 are integrally formed.

[0083] In the initial state, the connecting rod 46 is inserted into the connecting hole 36 and nested with the valve stem 31. The engagement of the groove 461 opened at the top of the connecting rod 46 with the convex ring formed at the top of the connecting hole 36, and the plug body 481 at the bottom of the connecting rod 46 abuts against the lower end of the valve stem 31 (the second retaining ring 33 or the third retaining ring 34), thereby relatively fixing the valve core 3 and the float 4.

[0084] In this embodiment, the first ring body 41, the first connecting part 43, the second ring body 42, the second connecting part 45, the third ring body 44 and the third connecting part 47 are connected in sequence and formed as one piece to form a structure that is compatible with the stepped structure of the support frame 2. When the float 4 and the valve core 3 slide up and down relative to the support frame 2, the stepped structure can act as a sliding guide to ensure that the valve core 3 and the float 4 can move up and down smoothly.

[0085] <Counterweight 5>

[0086] In this embodiment, the counterweight 5 is annular and positioned below the buoyancy block 4. It is secured to the bottom of the support frame 2 by screwing or snapping. The counterweight 5 can be made of, for example, a weighted PP material, or can be made with calcium carbonate to increase its density and thus its overall weight. However, no specific limitation is imposed as long as the weight of the entire device exceeds its buoyancy, allowing it to be stably placed at the bottom of the water tank and prevent it from tipping over during flushing or water storage.

[0087] In addition, in order to facilitate the rapid mixing of the toilet cleaning liquid into the water tank, a plurality of holes penetrating the inner and outer peripheries can also be opened at the bottom of the counterweight block 5.

[0088] In addition, since the counterweight 5 keeps the bottle body 1 in an inverted state with the bottle mouth facing downward, the toilet cleaning liquid in the bottle body 1 has a certain water pressure, which can also prevent the water in the water tank from flowing back into the bottle body 1, thereby further preventing the toilet cleaning liquid from being diluted.

[0089] <About Automatic Release and Quantitative Structure>

[0090] Figure 12 This is a structural diagram when the valve core 3 slides to the lowest position (i.e., when the water tank is flushing). Figure 13 It is a structural diagram when the valve core 3 slides to the highest position (that is, when the water tank is filled with water).

[0091] As can be seen from the above, the bottle body 1 and the support frame 2 are relatively fixed, the valve core 3 and the float 4 are relatively fixed, and the float 4 rises and falls according to the buoyancy and its own weight to adjust the balance, thereby driving the valve stem 31 of the valve core 3 to slide up and down along the extension tube 281 of the support frame 2, so that the valve core 3 and the float 4 can slide up and down relative to the bottle body 1 and the support frame 2.

[0092] Specifically, after the device is unsealed and placed in the toilet tank, when the tank is filled with water, the float 4 is immersed in the water, and the buoyancy of the float 4 is greater than its own weight, so the float 4 moves upward. Since the diameter of the plug 481 of the float 4 is the same as the inner diameter of the liquid outlet passage 28, the plug 481 is partially inserted into the liquid outlet passage 28 and sealed (see Figure 13 At this time, the liquid outlet passage 28 is closed, and the toilet cleaning liquid in the bottle 1 is separated from the water in the water tank.

[0093] When the cistern is flushed, the water level drops, the volume of float 4 immersed in the water gradually decreases, and the buoyancy it experiences decreases, causing float 4 to gradually move downward. The plug 481 of float 4 separates from the liquid outlet passage 28, opening it. At this point, the toilet cleaning liquid is discharged from bottle 1 into the cistern, where it mixes with the water to form a mixed liquid.

[0094] Specifically, the toilet cleaning liquid flows from the bottle body 1 through the opening 14 into the space formed by the bottle mouth 11 and the bottle mouth connecting portion 23 of the support frame 2, and then flows through the cylindrical portion 25 to the valve core 3. Driven by the downward movement of the float 4, the valve core 3 moves downward along the extension tube 281. As previously described, the toilet cleaning liquid flows out through the gap between the inner wall of the cylindrical portion 25 and the first retaining ring 32, and then flows through the gaps between the inner wall of the extension tube 281 and the second and third retaining rings 33 and 34, as well as the liquid diversion channel formed by the inner wall of the extension tube 281, the annular groove 35, the notch 331, and the flattened portion 341, to flow into the space surrounded by the third ring body 44 and the third connecting portion 47. After the toilet cleaning liquid enters this space, a portion of it flows out of the device directly through the through hole 48 opened on the third connecting part 47, and the other portion flows out of the device in sequence through the gap between the third ring body 44 and the cylindrical part 25, the gap between the second ring body 42 and the bottle mouth connecting part 23, and the water passage 21 opened on the support frame 2.

[0095] As the water level in the water tank further drops, the float 4 also drops further until the first retaining ring 32 of the valve core 3 abuts against the liquid outlet passage 28 and seals (see Figure 12 ), the liquid outlet passage 28 is closed, thereby achieving quantitative removal of the toilet cleaning liquid and avoiding waste caused by continuous outflow of the toilet cleaning liquid during flushing.

[0096] When the water tank is filled with water again, as the water level in the water tank rises, the float 4 is immersed in the water again and floats upward, the liquid outlet passage 28 is opened, and the toilet cleaning liquid is quantitatively released as described above until the plug body 481 closes the liquid outlet passage 28. At this time, the toilet cleaning liquid in the bottle body 1 is separated from the water in the water tank again.

[0097] The above specific implementation methods further describe the purpose, technical solutions and beneficial effects of this application in detail. It should be understood that the above is only a specific implementation method of this application and is not limited to the scope of protection of this application. Without departing from the purpose of the basic characteristics of this application, this application can be embodied in various forms. Therefore, the implementation forms in this application are used for illustration rather than limitation. Since the scope of this application is defined by the claims rather than the specification, and all changes that fall within the scope defined by the claims or the equivalent range of the scope defined by them should be understood to be included in the claims. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this application should be included in the scope of protection of this application.

Claims

1. A toilet cleaning agent automatic release device, comprising: The bottle body is used to contain the liquid toilet cleaner, and comprises a bottle body and a bottle mouth opening facing downward; a supporting frame connected to the bottom of the bottle body through the bottle mouth; a valve core, which is inserted into the support frame in a manner capable of relative sliding along the axial direction; a float non-slidably connected to the valve core; as well as a counterweight block, which is installed at the bottom of the support frame; The characteristics are, The support frame is formed with a liquid outlet passage communicating with each other up and down; The valve core includes: a valve stem slidably inserted into the support frame in the axial direction; a position limiting ring extending radially outward from the upper end of the valve stem and having a diameter larger than the liquid outlet passage; a plurality of flow limiting rings extending circumferentially on the outer circumference of the valve stem and having a diameter smaller than the liquid outlet passage; and a connecting hole extending through the center of the valve stem along the axis. The float includes: a float body extending in a radial direction and slidably sleeved inside a support frame; and a connecting rod inserted into the connecting hole and fixed to the valve core.

2. The automatic release device for toilet cleaning agent according to claim 1, characterized in that: A plurality of water passages are provided on the wall surface of the support frame at intervals along the circumferential direction, a plurality of through holes are provided on the floating block, and a plurality of channels are provided on the bottom of the counterweight block.

3. The automatic release device for toilet cleaning agent according to claim 1, characterized in that: The flow limiting baffle rings are arranged on the valve stem at intervals along the axial direction, and there are small gaps between them and the inner walls of the liquid outlet passage, and annular grooves are formed between adjacent flow limiting baffle rings.

4. The automatic release device for toilet cleaning agent according to claim 3, characterized in that: A pair of circumferentially opposite notches are formed on one of the current limiting baffle rings, and a pair of circumferentially opposite flattened positions are formed on the adjacent current limiting baffle rings. The notches and the flattened positions are aligned in the circumferential direction, and adjacent notches and flattened positions are staggered 90° in the circumferential direction.

5. The automatic release device for toilet cleaning agent according to claim 1, characterized in that: The diameter of the connecting rod is smaller than the inner diameter of the connecting hole. A convex ring protruding axially is formed at the top of the connecting hole. A groove with a reduced diameter is formed on the top of the connecting rod. The connecting rod is inserted into the connecting hole, and the groove is engaged with the convex ring.

6. The automatic release device for toilet cleaning agent according to claim 1, characterized in that: A plug body portion with an enlarged diameter is formed at the bottom of the connecting rod, and the diameter of the plug body portion is the same as the diameter of the liquid outlet passage.

7. The automatic release device for toilet cleaning agent according to claim 1, characterized in that: A clearance ring groove with a diameter that decreases radially inward is formed on the outer peripheral surface of the bottle body, and a limiting ring is formed on the top end of the wall surface of the support frame and is provided for engaging with the clearance ring groove; The end portions of the limiting ring are separated from each other and are connected to the wall of the support frame via several connection points. When one end of the limiting ring is pulled and torn, the connection points are broken one by one, and the limiting ring is separated from the support frame.

8. The automatic release device for toilet cleaning agent according to claim 1, characterized in that: A protruding tooth portion standing upright is formed at a position of the support portion opposite to the bottle mouth portion.

9. The automatic release device for toilet cleaning agent according to claim 1, characterized in that: The counterweight block is made of a weighted PP material, or a weighted PP material added with calcium carbonate material.

10. The automatic release device for toilet cleaning agent according to claim 1, characterized in that: The opening of the bottle mouth is covered and closed by a film when not in use. The film is aluminum foil or plastic film.

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