Liquid flow limiter

Abstract

The utility model relates to the technical field of pipeline fittings, in particular to a liquid flow limiter which comprises an outer sleeve, an inner sleeve and a sealing ring, the inner sleeve is clamped in the outer sleeve, an inner water outlet is formed in the outer wall of the inner sleeve, a water baffle is arranged at the end of the inner sleeve, and a water outlet is formed in the inner wall of the inner sleeve. The water baffle is located at the end, close to the inner water outlet, of the inner sleeve. An outer water outlet corresponding to the inner water outlet is formed in the outer wall of the outer sleeve, and the closed ring is arranged outside the outer sleeve in a sleeving mode and moves in the length direction of the outer sleeve at the position of the outer water outlet. The swimming pool has the effects that water flow is buffered and adjusted, and interference of the water flow to the swimming pool environment is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipe fittings, in particular to a liquid flow restrictor. BACKGROUND

[0002] The liquid flow restrictor is a key component for a pipeline system, which can be used as a special pipeline dredging joint to limit the opening and closing state of the pipeline end and control the flow speed of the liquid.

[0003] In related technologies, for example, a swimming pool, a water pump is usually needed to realize the water injection or water pumping operation inside the swimming pool. The common practice is to directly install the water outlet of the water pump on the inner wall of the swimming pool as the water inlet and outlet channel.

[0004] In view of the above related technologies, the water injection method directly installed on the inner wall of the swimming pool has a large water flow impact force and lacks buffering and adjustment, which can cause the water pressure near the interface in the swimming pool to be unstable, and thus strong water flow turbulence is generated, which seriously interferes with the water flow environment of the entire swimming pool and affects the user experience. CONTENT OF THE INVENTION

[0005] In order to buffer and adjust the water flow and reduce the interference of the water flow on the swimming pool environment, the present application provides a liquid flow restrictor.

[0006] The liquid flow restrictor provided by the present application adopts the following technical scheme:

[0007] A liquid flow restrictor comprises an outer sleeve, an inner sleeve and a closing ring, the inner sleeve is clamped in the inner part of the outer sleeve, the inner sleeve is provided with an inner water outlet on the outer wall, the inner sleeve is provided with a water baffle at the end position, and the water baffle is located at one end of the inner sleeve close to the inner water outlet;

[0008] The outer sleeve is provided with an outer water outlet corresponding to the inner water outlet on the outer wall, and the closing ring is sleeved on the outer part of the outer sleeve and moves along the length direction of the outer sleeve at the position of the outer water outlet.

[0009] By adopting the above technical scheme, the inner side wall of the inner sleeve is provided with an inner water outlet, and a water baffle is arranged at the end close to the inner water outlet to block it, so as to change the flow direction of water, so that the original straight flow is changed into vertical flow, the impact force of water flow is dispersed, and the water flow is prevented from concentrating on a certain area of the swimming pool. The inner sleeve is clamped on the inner side of the swimming pool wall close to the swimming pool wall, and the two are tightly matched to realize preliminary water flow guiding and integration. The outer sleeve is provided with an outer water outlet on the outer side wall in the swimming pool, and the outer water outlet is in communication with the inner water outlet on the inner sleeve, so as to ensure smooth transition of water flow. The closure ring moves along the outer side wall of the outer sleeve, and the closure ring moves to different positions to block the outer water outlet to different degrees, so as to realize dynamic adjustment of the area of the water outlet. The movement of the closure ring can finely control the outflow speed and flow of the liquid according to the actual needs of the swimming pool, and the water flow is adjusted in all directions to reduce the interference of the water flow on the swimming pool environment, so as to create a stable and comfortable water flow environment for the swimming pool.

[0010] Further, the outer sleeve has a connecting section for connecting with the water pump on the swimming pool wall, a water outlet section exposed in the swimming pool, and a flow limiting section between the connecting section and the water outlet section for mounting the closure ring, and the outer periphery wall of the flow limiting section is provided with an outer thread for threadedly connecting with the closure ring, and the outer water outlet is arranged in the flow limiting section.

[0011] By adopting the above technical scheme, the clear connection section enables the outer sleeve to be stably connected with the water pump on the swimming pool wall, and ensures the installation reliability of the flow limiter in the pipeline system. The water outlet section exposed in the swimming pool provides an outflow path for the water flow after buffer adjustment, so that the water flow enters the main body of the swimming pool smoothly, avoids disorderly dispersion of the water flow, and optimizes the water flow distribution in the swimming pool. The flow limiting section between the connecting section and the water outlet section mainly bears the flow limiting and regulating functions, the outer thread on the outer periphery wall of the flow limiting section is perfectly matched with the thread of the closure ring, the closure ring is moved in the flow limiting section by rotating it, so as to adjust the opening degree of the outer water outlet, accurately cope with the diversified needs of water flow speed and flow under different working conditions of the swimming pool, and improve the optimization effect of the liquid flow limiter on the water flow environment of the swimming pool.

[0012] Further, the inner sleeve is provided with a plurality of inner water outlets at intervals on the outer periphery wall, and the outer sleeve is provided with a plurality of outer water outlets corresponding to the inner water outlets and in communication with the inner water outlets.

[0013] By adopting the technical scheme, the inner sleeve outer peripheral wall is spacedly provided with multiple inner water outlets, which is equivalent to refining one strong water flow into multiple relatively soft water flow branches, reducing the concentrated impact of the water flow on the internal structure of the flow restrictor, and making the water flow stable from the source. The outer sleeve flow-restricting section is circumferentially provided with multiple outer water outlets corresponding to the inner water outlets one by one, cooperating with the flow distribution of the inner water outlets, to realize omnidirectional and multi-angle water flow export. When the water flow enters the swimming pool from the flow restrictor, it can be more evenly distributed in the local area of the swimming pool, avoiding sudden increase of local water pressure, and when facing different swimming pool water injection or pumping requirements, the multiple water outlet structure can provide a larger flow adjustment range.

[0014] Further, the outer peripheral wall of the outer sleeve is provided with a limiting spacer ring between the connecting section and the flow-restricting section for abutting against the swimming pool wall.

[0015] By adopting the technical scheme, during installation, the limiting spacer ring can provide accurate positioning for the connection of the liquid flow restrictor and the swimming pool wall, and the operator can accurately install the flow restrictor to the predetermined position according to the limiting spacer ring, ensuring that the connecting section of the outer sleeve is tightly connected with the water pump outlet on the swimming pool wall, and improving the installation efficiency. During operation, the limiting spacer ring can bear external forces such as water flow impact and gravity of the flow restrictor itself, avoiding displacement or shaking of the outer sleeve due to uneven stress, stabilizing the installation state of the flow restrictor on the swimming pool wall, and ensuring the stability of the entire pipeline system. At the same time, the limiting spacer ring also plays a sealing auxiliary role, and the limiting spacer ring is tightly attached to the swimming pool wall, thereby filling the possible small gaps and improving the sealing performance of the liquid flow restrictor.

[0016] Further, the outer peripheral wall of the inner sleeve is provided with a limiting convex ring at the end position for abutting against the end of the outer sleeve.

[0017] By adopting the technical scheme, during assembly, only the inner sleeve needs to be inserted into the outer sleeve until the limiting convex ring is tightly abutted against the end of the outer sleeve, which can ensure that the inner sleeve is in the accurate working position, simplify the assembly process, and avoid displacement of the inner sleeve due to improper installation. In the running state, the water flow flows at high speed through the inner sleeve, and the impact force may push the inner sleeve to move. The limiting convex ring can bear the impact force brought by the water flow, prevent the inner sleeve from moving along the length direction in the outer sleeve, maintain the relative position relationship between the inner sleeve and the outer sleeve, and ensure that the liquid flow restrictor stably plays the functions of flow restriction and flow regulation.

[0018] Further, the outer peripheral wall of the inner sleeve is provided with multiple sliding convex ribs along the length direction, and the inner peripheral wall of the outer sleeve is provided with multiple sliding grooves for clamping and sliding of the sliding convex ribs.

[0019] By adopting the technical scheme, when the flow restrictor is installed, the cooperation of the sliding protrusion and the sliding groove enables the inner sleeve to smoothly slide in the length direction of the outer sleeve, preventing the inner sleeve from rotating in the circumferential direction. When dealing with special working conditions, the operator can also accurately adjust the position of the inner sleeve according to actual needs, flexibly change the relative overlapping area of the inner water outlet and the outer water outlet, and provide more operation dimensions for accurately regulating the flow rate and flow speed of the water flow.

[0020] Further, the end of the sliding protrusion is fixedly connected with the limiting protruding ring, and the sliding protrusion is provided with an insertion guide surface at an end away from the limiting protruding ring for being inserted into the sliding groove.

[0021] By adopting the technical scheme, the sliding protrusion is fixedly connected with the limiting protruding ring, enhancing the integrity and stability of the inner sleeve structure. The limiting protruding ring uniformly disperses the stress to the entire inner sleeve structure through the fixed connection with the sliding protrusion, avoiding stress concentration and effectively improving the structural strength and durability of the inner sleeve. When the inner sleeve is installed into the outer sleeve, the insertion guide surface can facilitate the operator to align the end with the insertion guide surface with the sliding groove, and the special shape of the guide surface can automatically guide the sliding protrusion to be smoothly clamped into the sliding groove, reducing the installation difficulty and improving the assembly efficiency.

[0022] Further, the closed ring is provided with a protrusion on the outer peripheral wall for increasing the friction force.

[0023] By adopting the technical scheme, in actual use, the operator needs to rotate the closed ring to adjust its position on the outer sleeve, thereby realizing accurate regulation of the water flow. The protrusion on the outer peripheral wall of the closed ring increases the friction force between the operator's hand and the closed ring. When rotating the closed ring, the operator can apply force more stably, avoiding operation errors caused by hand slipping. The presence of the protrusion enables the operator to more clearly perceive the rotation angle and position change of the closed ring, improving the accuracy of regulating the water flow.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. By designing the inner sleeve, the outer sleeve and the closed ring, the direction of the water flow is changed from straight flow to vertical flow, and through the multiple inner and outer water outlets and the movable closed ring, full-range buffering and adjustment of the water flow are realized, the flow rate and flow volume can be finely regulated according to the needs of the swimming pool, sudden increase of local water pressure is avoided, and a stable and comfortable water flow environment is created for the swimming pool;

[0026] 2. The connecting section, limiting ring, limiting convex ring, and sliding convex rib and sliding groove of the outer sleeve ensure the installation reliability and operation stability of the flow restrictor in the pipeline system, improve the overall structural strength and durability, from the connection with the water pump, the installation and fixation with the pool wall to the assembly and positioning of the inner sleeve and the outer sleeve.

[0027] 3. The protrusions on the outer wall of the closing ring increase the friction force, allowing the operator to apply force stably when rotating the closing ring, avoiding slipping and mistakes, and more clearly perceiving the rotation angle and position change, greatly improving the precision and operation convenience of water flow regulation, and even allowing easy operation in a humid environment. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a schematic diagram of the overall structure of a liquid flow restrictor according to an embodiment of the present application.

[0029] Figure 2 is a schematic diagram of the cross-sectional structure of a liquid flow restrictor according to an embodiment of the present application.

[0030] Figure 3 is a schematic diagram of the structure of a liquid flow restrictor according to an embodiment of the present application.

[0031] Figure 4 is Figure 3 is a schematic diagram of the structure of a liquid flow restrictor according to an embodiment of the present application.

[0032] Figure 5 is a schematic diagram of the structure of a liquid flow restrictor according to an embodiment of the present application.

[0033] Figure 6 is a schematic diagram of the structure of a liquid flow restrictor according to an embodiment of the present application.

[0034] Figure 7 is a schematic diagram of the structure of a liquid flow restrictor according to an embodiment of the present application.

[0035] Figure 8 is a schematic diagram of the structure of a liquid flow restrictor according to an embodiment of the present application.

[0036] Figure 9 is a schematic diagram of the structure of a liquid flow restrictor according to an embodiment of the present application.

[0037] Figure 10 is a schematic diagram of the structure of a liquid flow restrictor according to an embodiment of the present application.

[0038] Explanation of reference signs: 1, outer sleeve; 11, connecting section; 12, flow limiting section; 121, outer water outlet; 13, water outlet section; 14, limiting spacer ring; 15, sliding groove; 2, inner sleeve; 21, limiting convex ring; 22, inner water outlet; 23, water baffle; 24, sliding convex rib; 241, plug-in guide surface; 3, closing ring; 31, protrusion. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical scheme and advantages of the present application more clear, the following will combine with the drawings of the present application and embodiments to make further detailed description of the present application. Figures 1-10 DETAILED DESCRIPTION

[0040] The embodiments of the present application disclose a liquid flow limiter. Referring to Figure 1 and Figure 2 , the liquid flow limiter comprises an outer sleeve 1, an inner sleeve 2 and a closing ring 3. The inner sleeve 2 is clamped in the inner part of the outer sleeve 1, and the closing ring 3 is sleeved on the outer part of the outer sleeve 1.

[0041] Referring to Figure 2 and Figure 3 , the outer sleeve 1 has a connecting section 11, a flow limiting section 12 and a water outlet section 13 which are coaxially arranged and integrally connected in sequence. The connecting section 11 is used for connecting with the water pump on the pool wall, the water outlet section 13 is exposed in the pool, and the flow limiting section 12 is located between the connecting section 11 and the water outlet section 13 and cooperates with the inner sleeve 2 and the closing ring 3, so as to realize the flow limiting effect.

[0042] The outer peripheral wall of the outer sleeve 1 is integrally connected with a limiting spacer ring 14 between the connecting section 11 and the flow limiting section 12, and the outer diameter of the limiting spacer ring 14 needs to be slightly larger than the outer diameter of the connecting section 11 and the flow limiting section 12. In the embodiment, the outer peripheral wall of the limiting spacer ring 14 is provided as a polygonal structure for easy installation. In the installation process of the flow limiter, the limiting spacer ring 14 can be used to abut against the pool wall, and the connecting section 11 of the outer sleeve 1 is tightly connected with the outlet of the water pump on the pool wall.

[0043] The outer sleeve 1 is provided with an outer water outlet 121 on the outer wall, and the outer water outlet 121 is arranged at the position of the flow limiting section 12. In the embodiment, the number of the outer water outlets 121 is preferably four, and each outer water outlet 121 is uniformly and spacedly arranged along the outer peripheral wall of the flow limiting section 12. The closing ring 3 is sleeved on the outer part of the outer sleeve 1 and moves along the length direction of the outer sleeve 1 at the position of the outer water outlet 121, and the outer peripheral wall of the flow limiting section 12 is provided with external threads which are threadedly matched with the closing ring 3. The closing ring 3 is provided with protrusions 31 on the outer peripheral wall for increasing the friction.

[0044] The outer peripheral wall of the inner sleeve 2 is provided with a limiting convex ring 21 at the end position, the inner sleeve 2 is inserted into the outer sleeve 1 and abuts against the end of the outer sleeve 1 through the limiting convex ring 21. The inner sleeve 2 is provided with four inner water outlets 22 at the interval of the outer peripheral wall, each inner water outlet 22 is correspondingly communicated with each outer water outlet 121. The inner sleeve 2 is integrally connected with a water baffle 23 at the end position, the water baffle 23 is located at one end of the inner sleeve 2 close to the inner water outlet 22.

[0045] In combination Figure 4 The outer peripheral wall of the inner sleeve 2 is provided with a plurality of sliding convex ribs 24 along the length direction, the number of the sliding convex ribs 24 is preferably four in the embodiment, the inner peripheral wall of the outer sleeve 1 is provided with a plurality of sliding grooves 15 for clamping and sliding of each sliding convex rib 24, the number of the sliding grooves 15 is correspondingly four, the inner sleeve 2 is clamped and slidably installed in the outer sleeve 1 through the cooperation of the sliding convex rib 24 and the sliding groove 15. The end of the sliding convex rib 24 is fixedly connected with the limiting convex ring 21, the end of the sliding convex rib 24 away from the limiting convex ring 21 is provided with an insertion guide surface 241 for insertion into the sliding groove 15.

[0046] With reference to Figure 5 And Figure 6 When the closing ring 3 is in the fully closed state, the outer water outlet 121 on the outer sleeve 1 is completely blocked, at this time, the flow limiting adjustment function of the entire flow limiter is temporarily invalid in the current stage, the water flow path is from the connecting section 11 to the flow limiting section 12, and then flows out from the gap between the water baffle 23 and the connecting section 11 to the water outlet section 13, and then flows into the swimming pool.

[0047] With reference to Figure 7 And Figure 8 When the closing ring 3 is in the semi-open state, the outer water outlet 121 is partially blocked. In the case that the water pump water supply flow is relatively stable, when the water flow flows from the connecting section 11 through the outer water outlet 121, the water area of the outer water outlet 121 is reduced compared with the water area of the connecting section 11, and the reduction of the water area increases the water flow speed. The water flow forms a vortex between the flow limiting section 12 and the water outlet section 13 to reach a balance state, so that the water flow flowing out of the outer water outlet 121 does not form irregular turbulent flow. By adjusting the semi-open state of the closing ring 3, the water area of the outer water outlet 121 can be accurately changed. The smaller the water area is, the smaller the water flow flowing out of the outer water outlet 121 is under the certain water pump water supply pressure and flow, so as to realize the flow limiting effect on the water flow.

[0048] With reference to Figure 9 And Figure 10When the closed ring 3 is in a fully open state, the outer water outlets 121 on the outer sleeve 1 are all exposed, at this time, the inner sleeve 2 and the outer sleeve 1 of the liquid flow restrictor are in communication with the outside of the swimming pool through the outer water outlets 121 and the water outlet section 13, forming a communicating vessel, so that the water in the swimming pool has the opportunity to enter the flow-restricting section 12 through the water outlet section 13, and creates conditions for the circulating flow of water flow. The water entering the inner sleeve 2 from the water pump has a certain pressure and speed, according to Bernoulli's principle, when this part of water flows to the outer water outlets 121 of the outer sleeve 1 through the inner water outlets 22 of the inner sleeve 2, the water flow speed increases and the pressure decreases at the outer water outlets 121. The pressure difference causes the water in the swimming pool to be drawn into and backflow from the water outlet section 13 into the flow-restricting section 12, and then flow out from the outer water outlets 121 together with the water flow from the water pump, thereby forming a pool water circulation.

[0049] The liquid flow restrictor provided by the embodiments of the present application has various uses, and can be mainly used in a water circulation system of a swimming pool or a water circulation system in a large aquarium or a marine exhibition pool. In addition, the liquid flow restrictor can also be used in a landscape fountain in a city park or a large commercial plaza, and can be used to control the water spraying height and water volume of the fountain nozzle. In a hydroponic vegetable or flower planting facility, the liquid flow restrictor can be installed in a nutrient solution conveying pipeline to control the flow speed and flow volume of the nutrient solution.

[0050] The implementation principle of the liquid flow restrictor according to an embodiment of the present application is as follows: the liquid flow restrictor mainly comprises an outer sleeve 1, an inner sleeve 2 and a closed ring 3. The inner sleeve 2 is clamped and slides in the outer sleeve 1. The outer sleeve 1 comprises a connecting section 11, a flow-restricting section 12 and a water outlet section 13 which are coaxially and integrally connected. The closed ring 3 is sleeved outside the outer sleeve 1 and is threadedly connected with the flow-restricting section 12 of the outer sleeve 1. The connecting section 11 is used to connect a water pump on the wall of the swimming pool, the water outlet section 13 is exposed in the swimming pool, and the flow-restricting section 12 is used to cooperate with the inner sleeve 2 and the closed ring 3 to realize flow restriction. The flow-restricting section 12 of the outer sleeve 1 is provided with four uniformly spaced outer water outlets 121, the outer circumferential wall of the inner sleeve 2 is provided with four inner water outlets 22 corresponding to the outer water outlets 121, and the inner sleeve 2 is further provided with an integrally connected water baffle 23 at one end close to the inner water outlets 22.

[0051] When the closed ring 3 is completely closed, the outer water outlets 121 on the outer sleeve 1 are completely blocked, and the flow path of the water flow is from the connecting section 11 to the flow-restricting section 12, and then flows out from the water baffle 23 and the gap between the connecting section 11 to the water outlet section 13, and then flows into the swimming pool.

[0052] When the closed ring 3 is half open, the water outlet 121 is partially blocked, and the water flow area of the water outlet 121 is reduced compared to the water flow area of the connecting section 11, so that the water flow speed is increased. The water flow forms a vortex between the flow limiting section 12 and the water outlet section 13 to reach a balanced state. By adjusting the half-open state of the closed ring 3, the water flow area of the water outlet 121 can be accurately changed. The smaller the water flow area, the smaller the water flow from the water outlet 121 under a certain water pump water supply pressure and flow, thereby achieving the flow limiting effect on the water flow.

[0053] When the closed ring 3 is fully open, the water outlet 121 is fully exposed, and the inner sleeve 2 and the outer sleeve 1 of the liquid flow limiter are connected to the outside of the pool through the water outlet 121 and the water outlet section 13. The water entering the inner sleeve 2 from the water pump has a certain pressure and speed. According to Bernoulli's principle, when this part of water flows to the water outlet 121 of the outer sleeve 1 through the inner water outlet 22 of the inner sleeve 2, the water flow speed increases and the pressure decreases at the water outlet 121. The pressure difference causes the water in the pool to be drawn in and flow back into the flow limiting section 12 from the water outlet section 13, and then flow out of the water outlet 121 together with the water flow from the water pump, thereby forming a pool water circulation.

[0054] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, any equivalent changes made on the basis of the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A liquid flow restrictor, characterized in that: It includes an outer sleeve (1), an inner sleeve (2) and a closing ring (3). The inner sleeve (2) is snapped into the inside of the outer sleeve (1). The inner sleeve (2) has an inner water outlet (22) on its outer wall. The inner sleeve (2) has a baffle plate (23) at its end. The baffle plate (23) is located at the end of the inner sleeve (2) near the inner water outlet (22). The outer sleeve (1) has an outer outlet (121) on its outer wall that corresponds to the inner outlet (22). The closing ring (3) is fitted around the outside of the outer sleeve (1) and moves along the length of the outer sleeve (1) at the position of the outer outlet (121).

2. A liquid flow restrictor according to claim 1, characterized in that: The outer sleeve (1) has a connecting section (11) for connecting to a water pump on the pool wall, a water outlet section (13) exposed in the pool, and a flow-limiting section (12) located between the connecting section (11) and the water outlet section (13) for the installation of the closing ring (3). The outer peripheral wall of the flow-limiting section (12) is provided with an external thread for the closing ring (3) to be threadedly connected. The water outlet (121) is opened in the flow-limiting section (12).

3. A liquid flow restrictor according to claim 2, characterized in that: The inner sleeve (2) has multiple inner water outlets (22) spaced apart on its outer peripheral wall, and the outer sleeve (1) has multiple outer water outlets (121) that are correspondingly connected to each of the inner water outlets (22) in the circumferential direction of the flow limiting section (12).

4. A liquid flow restrictor according to claim 2, characterized in that: The outer peripheral wall of the outer sleeve (1) is provided with a limiting spacer (14) for abutting against the pool wall between the connecting section (11) and the flow limiting section (12).

5. A liquid flow restrictor according to claim 2, characterized in that: The outer peripheral wall of the inner sleeve (2) is provided with a limiting protrusion (21) at the end position for abutting against the end of the outer sleeve (1).

6. A liquid flow restrictor according to claim 5, characterized in that: The outer peripheral wall of the inner sleeve (2) is provided with a plurality of sliding protrusions (24) along the length direction, and the inner peripheral wall of the outer sleeve (1) is provided with a plurality of sliding grooves (15) for each sliding protrusion (24) to be inserted into and slide.

7. A liquid flow restrictor according to claim 6, characterized in that: The end of the sliding protrusion (24) is fixedly connected to the limiting protrusion (21), and the sliding protrusion (24) has an insertion guide surface (241) for inserting into the sliding groove (15) at the end away from the limiting protrusion (21).

8. A liquid flow restrictor according to claim 1, characterized in that: The closed ring (3) has protrusions (31) on its outer peripheral wall to increase friction.

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