A connection structure between a water flow sensor and a water pipe

Abstract

The present invention relates to a connection structure between a water flow sensor and a water pipe, aiming to solve the technical problem of the single function of the connection structure between the water flow sensor at the cold water inlet end of the current traditional gas water heater and the water pipe. It includes a water flow sensor and a dual-mode connection component; wherein, the dual-mode connection component is composed of a multi-directional adaptation structure and an inner telescopic sleeve structure. Based on the inner telescopic sleeve structure, during the manual installation process, through the adjustment of the left and right water flow directions of the inner telescopic sleeve structure, and by manually pulling and stretching the functional sleeve component to expand or contract, the overall functional sleeve component can respectively adapt to the further filtering effect during the vertical installation of the water pipe and the effect of improving the flow rate during the bent installation of the water pipe. Moreover, the overall structure of this connection structure is simple, the operation is convenient, and the functional effects are rich. It optimizes and compensates for the deficiencies generated by the vertical water pipe installation method and the bent water pipe installation method in actual installation respectively.

Description

Technical Field

[0001] The present invention relates to the technical field of installation of gas water heaters, and particularly to a connection structure between a water flow sensor and a water pipe. Background Art

[0002] In the installation of existing gas water heaters, the water circuit is installed and connected through a metal braided network pipe and on-site manual cutting of a metal corrugated pipe. Whether it is purchasing water pipes or manual cutting of metals, it mainly relies on experience, and there are often two situations: 1. The purchased pipe length is appropriate, and the installation operation does not require the pipe to be bent into a vertical shape; 2. The pipe is too long or the cold water inlet port of the gas water heater is vertically misaligned with the cold water angle valve, and the pipe needs to be bent. Thus, two installation methods of the pipe are formed.

[0003] I. Vertical installation method: In the vertical installation method, since the pipe has no bend, water flow can directly and smoothly pass through the pipe and enter the cold water inlet port of the gas water heater. The advantage of this installation method is that it ensures the smoothness and efficiency of water flow, which helps the gas water heater achieve the best heating effect. However, this installation method also has certain potential problems. Since tap water often contains various impurities, such as particulate matter, sediment, etc., these impurities are more likely to be directly washed onto the water flow sensor at the cold water inlet end of the gas water heater along with the water flow in the vertically installed water circuit. Over time, these impurities may adhere to the surface of the sensor, affecting the sensitivity and accuracy of the sensor, and thus causing abnormal operation or performance degradation of the gas water heater.

[0004] II. Bent installation method: The bent installation method is more common in the actual installation process, especially when the pipe is too long or the cold water inlet port of the gas water heater is vertically misaligned with the cold water angle valve. By bending the pipe, the pipe orientation can be flexibly adjusted to adapt to different installation environments and requirements. However, bending the pipe also brings some negative impacts. First of all, the bent part will increase the resistance during water flow, resulting in a decrease in water flow velocity and flow rate. This may affect the heating effect of the gas water heater, especially during peak water usage periods, and users may feel that the hot water supply is insufficient.

[0005] Disadvantages: In the installation method of the bent pipe, due to the bending of the pipe, impurities in the tap water are more likely to be intercepted compared to the vertical installation of the pipe. This is because when the bent pipe changes the direction of the water flow, it also changes the dynamic characteristics of the water flow. First, the bending will cause a change in the water flow velocity, generating vortex and turbulence phenomena. These phenomena cause the impurity particles in the water flow to be subjected to greater centrifugal force and frictional force, making it easier to be intercepted on the inner side or dead corner of the bend. This leads to the situation that the straight pipe installation method will have more impurities in the water flow transported contacting and adhering to the water flow sensor compared to the bent pipe. In the bent pipe installation method, compared to the vertical pipe installation method, water flow resistance will be generated at the bend. This is mainly because the bend changes the flow direction and velocity distribution of the water flow. The following are several main reasons: First, when the water flow passes through the bend, it needs to change its original straight flow direction, which requires overcoming the inertial force generated by the direction change. This inertial force will cause the water flow to be blocked at the bend, thereby generating resistance. Second, the change in the internal structure and shape of the bent pipe will lead to a redistribution of the water flow velocity. The water flow velocity may increase on the inner side of the bend, forming vortices or turbulence; while on the outer side, the water flow velocity may decrease, forming backflows or dead water areas. These changes in the flow states will all increase the water flow resistance. In addition, there may be local diameter reduction or expansion in the bent pipe, and these changes in geometric shapes will also impede the water flow. The water flow velocity increases and the pressure decreases at the diameter reduction section, while the opposite occurs at the diameter expansion section. These changes in velocity and pressure will generate additional resistance.

[0006] The existing connection structure between the water flow sensor applied to the cold water inlet end of the gas water heater and the water pipe has a single function and cannot effectively cooperate with the different usage impacts brought by the bent pipe installation method and the vertical pipe installation method. In view of this, we propose a connection structure between the water flow sensor and the water pipe. Summary of the Invention

[0007] The purpose of the present invention is to overcome the deficiencies of the prior art, adapt to the actual needs, and provide a connection structure between the water flow sensor and the water pipe to solve the technical problem that the connection structure between the water flow sensor at the cold water inlet end of the current traditional gas water heater and the water pipe has a single function.

[0008] To achieve the object of the present invention, the technical solution adopted by the present invention is as follows: Design a connection structure between a water flow sensor and a water pipe, including a water flow sensor and a dual-mode connection component; wherein, the dual-mode connection component is composed of a multi-directional adaptation structure and an inner telescopic sleeve structure; the multi-directional adaptation structure is arranged at the input end of the water flow sensor; the inner telescopic sleeve structure includes a double-screw head main sleeve and a functional sleeve component arranged inside the double-screw head main sleeve; the double-screw head main sleeve is threadedly connected to the input end of the multi-directional adaptation structure; the functional sleeve component is successively sleeved in series by a number of auxiliary sleeves with gradually changing diameters, and the inner cavities of the number of auxiliary sleeves form a flow path with a gradually changing flow path; wherein, the functional sleeve component has a contracted state and an expanded state; in the expanded state of the functional sleeve component, the small-diameter end of the flow path is the input end, and the gap between the outer wall of the functional sleeve component and the inner wall of the double-screw head main sleeve encloses a filtering and receiving cavity; in the contracted state of the functional sleeve component, the large-diameter end of the flow path is the input end, and the gap between the inner walls of the functional sleeve component encloses an eddy current conveying cavity.

[0009] Preferably, the multi-directional adaptation structure includes a fixed connection housing and an adjustment block; the fixed connection housing is arranged at the input end of the water flow sensor, and an adaptation groove is opened at the bottom of the fixed connection housing. Among them, a diversion block is arranged inside the fixed connection housing through a connection shaft; and a conveying channel with large ends and a small middle end is opened inside the diversion block; the adjustment block is rotatably arranged inside the fixed connection housing, and a hole groove rotatably adapted to the connection shaft is opened on the inner surface of the adjustment block. Among them, an input hole and two output holes are opened on the surface of the adjustment block, and the two output holes are separated by a sealing block.

[0010] Preferably, the multi-directional adaptation structure further includes an extended connecting elbow; the extended connecting elbow is rotatably arranged on the input hole, and the extended connecting elbow is bent; wherein, the extended connecting elbow is composed of a fixed pipe and a movable pipe, and the fixed pipe and the movable pipe are rotatably connected through a sealing bearing, and the sealing bearing is arranged at the central axis position of the bent part of the extended connecting elbow.

[0011] Preferably, the double-screw head main sleeve is composed of a main connecting cylinder body and connecting screw heads arranged at both ends of the main connecting cylinder body, and the main connecting cylinder body is connected to the extended connecting elbow through a nut A and one of the connecting screw heads; and the main connecting cylinder body is connected to the water pipe through a nut B and the other connecting screw head.

[0012] Preferably, at least one buckle groove A for connecting with the functional sleeve component is arranged inside the double-screw head main sleeve.

[0013] Preferably, at least one limiting protrusion is provided on the outer surface of the auxiliary sleeve, and two buckle grooves B are provided in sequence on the inner wall of the auxiliary sleeve, and the buckle grooves A and B are movably snap-fitted with the limiting protrusion, and two adjacent auxiliary sleeves are movably connected.

[0014] Preferably, the auxiliary sleeve is composed of at least one hollow portion, a guide portion and an overlapping portion, wherein the guide portion is arranged relatively close to the end with a larger cavity diameter of the flow channel, and the inner walls of several guide portions form a forming cavity with a gradually changing cavity diameter in a contracted state; and the inner wall of the forming cavity is provided with several spiral forming grooves; and the surface of the hollow portion is evenly provided with several filter holes.

[0015] Preferably, the diameter of the filter receiving cavity is a gradual structure.

[0016] A method for using a connection structure between a water flow sensor and a water pipe, comprising the following steps:

[0017] S100: Gas water heater installation process: manually install the gas water heater on the building wall;

[0018] S200: Measurement process: Measure the length of the required metal pipe connection by using a measuring tool, and the dimension needs to maintain the horizontal and vertical measurement standards;

[0019] S300: Adjustment process:

[0020] If the cold water input angle valve is relatively located in the vertical direction, there is no need to bend the metal water pipe: first, manually use tools to pull out and stretch several auxiliary sleeves in sequence, so that multiple hollow parts are fully exposed, and the limit protrusions on the outer surface of the auxiliary sleeve are tightened through buckle grooves A and buckle grooves B; then, the multi-directional adapter structure is manually turned so that the two output holes are located on both sides of the symmetrical axis of the center of the adjustment block, and the extension connection elbow and the rotation adjustment moving pipe angle are specifically adjusted according to the relative verticality and a certain vertical deviation angle; then the rubber pad and the inner telescopic sleeve structure are installed through nut A;

[0021] If the relative offset angle of the cold water input angle valve is large, the metal water pipe needs to be bent:

[0022] First, several auxiliary sleeves are folded and contracted manually with the help of tools, so that multiple guide parts are overlapped in sequence to form a forming cavity, and the limiting protrusions on the outer surface of the auxiliary sleeves are fastened through buckle grooves A and buckle grooves B;

[0023] Then, manually turn the multi-directional adaptation structure to make one of the output holes completely coincide with the output end of the conveying channel, and the other output hole is in close contact with the fixed connection housing for plugging. The fixed connection housing, the adjusting block, and the opening of the extended connection elbow are all connected through sealing rings to maintain the sealing performance in the plugged state; then rotate and adjust the extended connection elbow and the moving pipe angle; finally, install the rubber pad and the inner telescopic sleeve structure with nut A;

[0024] S400: Water pipe installation: Install and connect the metal water pipe, rubber pad, and inner telescopic sleeve structure with nut B;

[0025] S500: Aesthetic treatment: By installing the aesthetic bar under the gas water heater and bending the metal water pipe horizontally and vertically, only a partial vertical metal water pipe is exposed between the cold water inlet angle valve and the gas water heater;

[0026] S600: Operation processing:

[0027] For the operation of the non-bent metal water pipe: Open the drainage connection with the gas water heater to cause the water to flow. The water is transported from the cold water angle valve into the metal water pipe, reaches the double-screw head main sleeve, and is separated from the end of the smallest auxiliary sleeve into the filter receiving cavity. The impurities and particles in the tap water are intercepted through the filter holes of the hollow part, effectively reducing the situation that in the vertical water pipe installation method, the relatively high flow rate is more likely to directly wash the water flow sensor at the cold water inlet end of the gas water heater along with the water flow. At the same time, part of the tap water still circulates through the circulation channel to ensure the basic water flow velocity and flow rate; and by setting the cavity diameter of the filter receiving cavity as a gradually changing structure, the tap water with an effective flow rate is filtered through the filter holes in the filter receiving cavity through the adaptation distance and size;

[0028] If it is for the operation of the bent metal water pipe: Open the drainage connection with the gas water heater to cause the water to flow. The water is transported from the cold water angle valve into the metal water pipe, reaches the double-screw head main sleeve, and flows from the end with a larger cavity diameter of the forming cavity to the end with a smaller cavity diameter to compress the water flow channel, improving the water flow rate. At the same time, in cooperation with the spiral-shaped forming groove, while increasing the flow rate, it effectively spirally guides the water flow to form a vortex to increase the water flow rate, thus making up for the reduction of water flow velocity and flow rate caused by the bent water pipe installation method;

[0029] S700: Induction processing: The water flows into the water flow sensor, and through the circuit connection between the water flow sensor and the gas water heater, the gas water heater heats the water.

[0030] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0031] 1. The present invention is based on an inner telescopic sleeve structure. During the manual installation process, by adjusting the left and right water flow directions of the inner telescopic sleeve structure and cooperating with the manual pulling of the functional sleeve assembly to expand or contract, the overall functional sleeve assembly can be respectively adapted to the further filtration effect during the vertical installation of the water pipe and the effect of improving the flow rate during the bent installation of the water pipe. Moreover, the overall structure of this connection structure is simple, the operation is convenient, and the functional effects are rich. It optimizes and compensates for the deficiencies generated by the vertical water pipe installation method and the bent water pipe installation method in actual installation.

[0032] 2. The present invention is based on the setting of a fixed connection housing, an adjustment block, and rotation. As a result, the overall multi-directional adaptation structure can be rotated and adjusted to the left and right sides, and at the same time, it is adapted to the installation method of the bent water pipe. By this method, it effectively reduces the situation that the cold water inlet end of the conventional gas water heater water flow sensor is in a vertical state, causing the water pipe to require at least two bends. The connection of the water pipe can be achieved through one bend. At the same time, based on the measure that the adjustment block can rotate, during actual installation, the output end of the metal water pipe can be adjusted to the connection position in advance, and the convenience during the operation and installation process can be achieved by rotating the adjustment block; as Figure 7 and Figure 9 shown, based on the angle adjustment, the output end of the conveying channel completely coincides with one of the output holes; and the output end of the conveying channel partially coincides with the two output holes. By this method, while achieving left and right multi-angle adjustment, a certain amount of water passage rate of the water path is maintained, avoiding the situation of a decrease in the water flow rate in any of the above two situations; as Figure 7 shown, the conveying channel is made by milling after drilling in a "Y" shape at an eccentric position of the adjustment block. The intersection of the "Y" - shaped drill holes is located at the eccentric position of the adjustment block. By this setting, a misalignment distance is provided for the rotation and blocking of one of the output holes as shown in Figure 8 to provide sufficient misalignment fitting distance for the close contact between the output hole and the adjustment block.

[0033] 3. The present invention is based on the rotatable adjustment setting of the fixed pipe and the movable pipe as shown in Figures 13 to 15 . As a result, the extended connecting elbow not only has an inclined bending state but also has an approximately vertical state, so as to be connected to the metal pipe with a size adapted to the vertical installation. At the same time, as Figure 13 shown, in this way, the extended connecting elbow in the arc - shaped bending structure is in an obtuse - angle bending state to make up for the vertical offset error.

[0034] 4. The present invention is as shown in Figure 4 and Figure 5Based on the setting that connection screw heads are provided at both ends of the double-screw head main sleeve, the double-screw head main sleeve can be manually adjusted according to the actual installation situation to select the left and right directions of the flow passage during the actual installation process. In this way, the installation of the inner telescopic sleeve structure with an adaptation function can be realized, and at the same time, it can be connected to a conventional metal water pipe to meet the universality and versatility of the installation and connection of conventional actual metal water pipes.

[0035] 5. Through the settings of slot A and slot B in the present invention, in cooperation with the limit protrusions, the auxiliary sleeve is fastened during the process of manual pulling and adjusting, reducing the adverse impact of uncontrollable water flow movement caused by the offset movement of the auxiliary sleeve under the impact of water flow in the installation structure.

[0036] 6. Based on the present invention as Figure 5 shown in the contracted state, the water flow passage is compressed by the water flow flowing from the end with a larger cavity diameter of the forming cavity to the end with a smaller cavity diameter, improving the water flow rate. At the same time, in cooperation with the spiral-shaped forming groove, while increasing the flow rate, the water flow is effectively spirally guided to form a vortex to increase the water flow rate, thereby compensating for the reduction in water flow velocity and flow rate caused by the installation method of the bent water pipe.

[0037] 7. In the state as Figure 4 shown in the present invention, in cooperation with the relatively reverse flow mode, part of the tap water cannot directly pass through the flow passage and is separated from the end of the smallest auxiliary sleeve into the filter receiving cavity, and the impurity particles in the tap water are intercepted through the filter holes of the hollow part. This effectively reduces the situation that in the vertical water pipe installation method, due to the relatively high flow rate, it is easier for the water flow to directly wash onto the water flow sensor at the cold water inlet end of the gas water heater. At the same time, part of the tap water still flows through the flow passage to ensure the basic water flow velocity and flow rate; and by using the setting that the cavity diameter of the filter receiving cavity is a gradually changing structure, tap water with an effective flow rate is filtered and processed through the filter holes in the filter receiving cavity by adapting to the distance and size. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 is the overall three-dimensional structure schematic diagram of the present invention;

[0039] Figure 2 is the three-dimensional split structure schematic diagram of the present invention;

[0040] Figure 3 is the three-dimensional sectional and functional sleeve assembly split three-dimensional structure schematic diagram of the double-screw head main sleeve in the present invention;

[0041] Figure 4 is the structure schematic diagram of the functional sleeve assembly in the unfolded state to show the installation direction of the double-screw head main sleeve in the present invention;

[0042] Figure 5 Schematic structural diagram of the functional sleeve assembly in the contracted state of the present invention to show the installation direction of the double-screw head main body sleeve;

[0043] Figure 6 Schematic three-dimensional sectional structure diagram of the multi-directional adaptation structure of the present invention to show the double-screw head main body sleeve at a rightward vertical angle;

[0044] Figure 7 Internal front view structural diagram of the multi-directional adaptation structure of the present invention to show the double-screw head main body sleeve at a leftward vertical angle;

[0045] Figure 8 Internal front view structural diagram of the multi-directional adaptation structure of the present invention to show the double-screw head main body sleeve at a rightward vertical angle;

[0046] Figure 9 Internal front view structural diagram of the multi-directional adaptation structure of the present invention to show the double-screw head main body sleeve at a lower leftward inclined angle;

[0047] Figure 10 Internal front view structural diagram of the multi-directional adaptation structure of the present invention to show the double-screw head main body sleeve at a lower rightward inclined angle;

[0048] Figure 11 Internal front view structural diagram of the multi-directional adaptation structure of the present invention to show the double-screw head main body sleeve at an inclined lower right angle;

[0049] Figure 12 Internal front view structural diagram of the multi-directional adaptation structure of the present invention to show the double-screw head main body sleeve at an inclined lower left angle;

[0050] Figure 13 Internal front view structural diagram of the multi-directional adaptation structure of the present invention to show the double-screw head main body sleeve at an approximately vertical angle;

[0051] Figure 14 Internal front view structural diagram of the multi-directional adaptation structure of the present invention to show the inclination angle adjustment of the extended connecting elbow in an obtuse angle bending shape;

[0052] Figure 15 Internal front view structural diagram of the multi-directional adaptation structure of the present invention to show the vertical angle adjustment of the extended connecting elbow in an obtuse angle bending shape;

[0053] Figure 16 For the present invention Figure 3 Partial enlarged structural diagram at location A in the present invention.

[0054] In the figure: 1. Water flow sensor; 2. Dual-mode connection component; 3. Multi-directional adaptation structure; 4. Inner telescopic sleeve structure; 5. Double-screw head main body sleeve; 6. Functional sleeve assembly;

[0055] 301. Fixed connection housing; 3011. Adaptation slot; 3012. Flow guiding block; 302. Adjusting block; 3021. Input hole; 3022. Output hole; 303. Extended connecting elbow; 3031. Fixed pipe; 3032. Movable pipe;

[0056] 501. Main connecting cylinder; 502. Slot A;

[0057] 601. Auxiliary sleeve; 6011. Limit protrusion; 6012. Slot B; 602. Hollow part; 603. Flow guiding part; 6031. Forming groove; 604. Coincidence part. Detailed implementation mode

[0058] The present invention will be further described below with reference to the drawings and embodiments:

[0059] Embodiment 1: A connection structure between a water flow sensor and a water pipe, see Figures 1 to 15 , including a water flow sensor 1 and a dual-mode connection component 2; among them, the dual-mode connection component 2 is composed of a multi-directional adaptation structure 3 and an inner telescopic sleeve structure 4; the multi-directional adaptation structure 3 is arranged at the input end of the water flow sensor 1; the inner telescopic sleeve structure 4 includes a double-screw main body sleeve 5 and a functional sleeve component 6 arranged inside the double-screw main body sleeve 5; the double-screw main body sleeve 5 is threadedly connected to the input end of the multi-directional adaptation structure 3; the functional sleeve component 6 is composed of a plurality of auxiliary sleeves 601 with gradually changing diameters in series, and the inner cavities of the plurality of auxiliary sleeves 601 form a flow passage with gradually changing flow paths; among them, the functional sleeve component 6 has a contracted state and an expanded state; in the expanded state of the functional sleeve component 6, the small-diameter end of the flow passage is the input end, and the gap between the outer wall of the functional sleeve component 6 and the inner wall of the double-screw main body sleeve 5 encloses a filtering and receiving cavity; in the contracted state of the functional sleeve component 6, the large-diameter end of the flow passage is the input end, and the gap between the inner walls of the functional sleeve component 6 encloses a vortex conveying cavity. Based on the inner telescopic sleeve structure 4, the present invention adjusts the left and right water flow directions of the inner telescopic sleeve structure 4 during the manual installation process, and cooperates with manually pulling the functional sleeve component 6 to expand or contract, so that the whole functional sleeve component 6 can respectively adapt to the further filtering effect during the vertical installation of the water pipe and the effect of improving the flow rate during the bent installation of the water pipe. Moreover, the overall structure of this connection structure is simple, the operation is convenient, the functional effects are rich, and it optimizes and compensates for the deficiencies generated by the vertical water pipe installation method and the bent water pipe installation method in actual installation.

[0060] Specifically, the multi-directional adaptation structure 3 includes a fixed connection housing 301 and an adjustment block 302; the fixed connection housing 301 is arranged at the input end of the water flow sensor 1, and an adaptation groove 3011 is opened at the bottom of the fixed connection housing 301. Among them, a diversion block 3012 is arranged inside the fixed connection housing 301 through a connecting shaft; moreover, a conveying channel with a large middle and small ends is opened inside the diversion block 3012; the adjustment block 302 is rotatably arranged inside the fixed connection housing 301, and a hole groove rotatably adapted to the connecting shaft is opened on the inner surface of the adjustment block 302. Among them, an input hole 3021 and two output holes 3022 are opened on the surface of the adjustment block 302, and the two output holes 3022 are separated by a sealing block. Based on the setting of the fixed connection housing 301, the adjustment block 302 and the rotation movement, the whole multi-directional adaptation structure 3 can be rotated and adjusted to the left and right sides, and at the same time, in a way that adapts to the installation method of the bent water pipe. By this method, the situation that the cold water inlet end of the conventional gas water heater water flow sensor is in a vertical state and the water pipe needs to be bent at least twice is effectively reduced. The connection of the water pipe can be realized through one bend. At the same time, based on the measure that the adjustment block 302 can rotate, during actual installation, the output end of the metal water pipe can be adjusted to the connection position in advance, and the convenience during the operation and installation process can be realized by rotating the adjustment block 302; as Figure 7 and Figure 9 shown, based on the angle adjustment, the output end of the conveying channel completely coincides with one of the output holes 3022; and the output end of the conveying channel partially coincides with the two output holes 3022. By this method, on the basis of realizing multi-angle adjustment to the left and right, a certain amount of water passage rate is maintained, and the situation of a decrease in water flow rate in any of the above two situations is avoided; as Figure 7 shown, the conveying channel is made by milling after drilling in a "Y" shape at an eccentric position of the adjustment block 302. The intersection of the "Y" shaped drilling is located at an eccentric position of the adjustment block 302. Through this setting, it is used to provide a misalignment distance for the rotation and plugging of one of the output holes 3022 as shown in Figure 8 shown, and sufficient misalignment fitting distance is provided for the output hole 3022 to be in close contact with the adjustment block 302.

[0061] Furthermore, the multi-directional adaptation structure 3 further includes an extended connection elbow 303; the extended connection elbow 303 is rotatably arranged on the input hole 3021, and the extended connection elbow 303 is bent; among them, the extended connection elbow 303 is composed of a fixed pipe 3031 and a movable pipe 3032, and the fixed pipe 3031 and the movable pipe 3032 are rotatably connected through a sealed bearing, and the sealed bearing is arranged at the central axis position of the bent part of the extended connection elbow 303. Based on as Figures 13 to 15The fixed pipe 3031 and the movable pipe 3032 shown are rotatably adjustable, so that the extended connecting elbow 303 not only has an inclined bending state, but also has an approximately vertical state, which is convenient for connecting with a metal pipe with a size adapted to the vertical installation. At the same time, as Figure 13 shown, the extended connecting elbow 303 in the arc bending structure has a small vertical offset at the relative vertical installation distance, but such errors can be compensated by a small-angle inclination of the whole metal pipe during the actual installation process; as Figure 15 shown, the vertical offset error can be compensated by rotatably connecting and adapting the same sealed bearing at the obtuse angle bending of the extended connecting elbow 303.

[0062] Furthermore, the double-screw head main sleeve 5 is composed of a main connecting cylinder body 501 and connecting screw heads arranged at both ends of the main connecting cylinder body 501. And the main connecting cylinder body 501 is connected to the extended connecting elbow 303 through a nut A and one of the connecting screw heads; and the main connecting cylinder body 501 is connected to the water pipe through a nut B and the other connecting screw head. Through the present invention, as Figure 4 and Figure 5 due to the arrangement that connecting screw heads are provided at both ends of the double-screw head main sleeve 5, the double-screw head main sleeve 5 can be manually selected according to the actual installation situation for the left and right orientations of the flow channel during the actual installation process. In this way, the installation of the adaptation function of the inner telescopic sleeve structure 4 can be realized, and at the same time, it can be connected to a conventional metal water pipe, meeting the universality and versatility of the conventional actual metal water pipe installation and connection.

[0063] It should be noted that at least one buckle groove A502 for connecting with the functional sleeve assembly 6 is provided inside the double-screw head main sleeve 5.

[0064] It should be noted that at least one limit protrusion 6011 is provided on the outer surface of the auxiliary sleeve 601, and two buckle grooves B6012 are sequentially provided on the inner wall of the auxiliary sleeve 601. And the buckle groove A502, the buckle groove B6012 and the limit protrusion 6011 are movably buckled and matched, and adjacent auxiliary sleeves 601 are movably connected. Through the settings of the buckle groove A502 and the buckle groove B6012, in cooperation with the limit protrusion 6011, the auxiliary sleeve 601 is fastened during the process of manual pulling and adjusting, reducing the adverse influence of the uncontrollable water flow movement caused by the offset movement of the auxiliary sleeve 601 under the impact of the water flow in the installation structure.

[0065] It is worth introducing that the auxiliary sleeve 601 is composed of at least one hollow part 602, a diversion part 603 and a coincidence part 604. Among them, the diversion part 603 is arranged relatively close to the end with a larger diameter of the flow passage cavity. And, the inner walls of several diversion parts 603 form a forming cavity with a gradually changing cavity diameter in the contracted state. And, several spiral forming grooves 6031 are arranged on the inner wall of the forming cavity. And, a number of filter holes are evenly opened on the surface of the hollow part 602. The present invention is based on the cooperation of the water flow from the end with a larger diameter of the forming cavity to the end with a smaller diameter in the contracted state as shown in Figure 5 to compress the water flow passage, improve the water flow rate. At the same time, the setting of the spiral forming grooves 6031 effectively spirally guides the water flow to form eddy currents while increasing the flow rate, thereby making up for the reduction of water flow speed and flow rate caused by the installation method of the bent water pipe.

[0066] It is emphasized that the cavity diameter of the filter receiving cavity is a gradually changing structure. In the state shown in Figure 4 of the present invention, with the relative reverse flow mode, part of the tap water cannot directly pass through the flow passage, is separated from the end of the smallest auxiliary sleeve 601 into the filter receiving cavity, and the impurity particles in the tap water are intercepted through the filter holes of the hollow part 602, effectively reducing the situation that the relatively high flow rate in the vertical water pipe installation method is more likely to directly wash the water flow sensor at the cold water inlet end of the gas water heater along with the water flow. At the same time, part of the tap water still flows through the flow passage to ensure the basic water flow speed and flow rate. And by using the setting that the cavity diameter of the filter receiving cavity is a gradually changing structure, the tap water with an effective flow rate is filtered through the filter holes in the filter receiving cavity by adapting the distance and size.

[0067] Embodiment 2: A method for using the connection structure between a water flow sensor and a water pipe, including the following steps:

[0068] S100: Installation treatment of the gas water heater: Manually install the gas water heater on the building wall;

[0069] S200: Measurement treatment: Measure the length of the metal pipe connection required by a measuring tool, and this size needs to maintain the horizontal and vertical measurement standard;

[0070] S300: Adjustment treatment:

[0071] If the position of the cold water input angle valve is relatively in the vertical direction and the metal water pipe does not need to be bent: "There may be some angular errors in this vertical direction"

[0072] First, manually use tools to pull out and stretch several auxiliary sleeves 601 in sequence, so that a plurality of hollow parts 602 are fully exposed, and fasten the limit protrusions 6011 on the outer surface of the auxiliary sleeve 601 through the buckle groove A502 and the buckle groove B6012; then manually dial the multi-directional adaptation structure 3 to make the two output holes 3022 located on the symmetric sides of the central axis of the center of the adjustment block 302, specifically rotate and adjust the angle of the extension connecting elbow 303 and the rotating and adjusting moving pipe 3032 according to the relative vertical and a certain vertical deviation angle; then install the rubber pad and the inner telescopic sleeve structure 4 in the water inlet and outlet directions as shown by the nut A Figure 4 as shown

[0073] If the relative offset angle of the cold water input angle valve position is large, it is necessary to bend the metal water pipe:

[0074] First, manually use tools to shrink and fold several auxiliary sleeves 601, so that a plurality of diversion parts 603 are sequentially lapped to form a cavity, and fasten the limit protrusions 6011 on the outer surface of the auxiliary sleeve 601 through the buckle groove A502 and the buckle groove B6012;

[0075] Then manually dial the multi-directional adaptation structure 3 to make one of the output holes 3022 completely coincide with the output end of the conveying channel, and the other output hole 3022 is in contact with the fixed connection housing 301 for plugging "the openings of the fixed connection housing 301, the adjustment block 302 and the extension connecting elbow 303 are all connected through sealing rings to maintain the sealing performance in the plugged state"; then rotate and adjust the angle of the extension connecting elbow 303 and the rotating and adjusting moving pipe 3032; finally, the nut A installs the rubber pad and the inner telescopic sleeve structure 4 in the water inlet and outlet directions as shown Figure 5 as shown

[0076] S400: Water pipe installation: Install and connect the metal water pipe, the rubber pad and the inner telescopic sleeve structure 4 through the nut B;

[0077] S500: Aesthetic treatment: By installing an aesthetic strip under the gas water heater, based on the method of bending the metal water pipe horizontally and vertically, only a partial vertical metal water pipe is exposed between the cold water inlet angle valve and the gas water heater;

[0078] S600: Operation processing:

[0079] Operation of the non-bent metal water pipe: By opening the drainage connection to the gas water heater, water flow is caused. Water is transported from the cold water angle valve into the metal water pipe, reaching the double-screw head main sleeve 5 and separating from the end of the smallest auxiliary sleeve 601 into the filter receiving cavity. The impurities and particles in the tap water are intercepted through the filter holes of the hollow part 602, effectively reducing the situation where, in the vertical water pipe installation method, the relatively high flow rate is more likely to directly wash the water flow sensor at the cold water inlet end of the gas water heater along with the water flow. At the same time, part of the tap water still flows through the flow channel, ensuring the basic water flow velocity and flow rate. And by setting the cavity diameter of the filter receiving cavity as a gradually changing structure, tap water with an effective flow rate is filtered through the filter holes in the filter receiving cavity through the adapted distance and size.

[0080] If operating the bent metal water pipe: By opening the drainage connection to the gas water heater, water flow is caused. Water is transported from the cold water angle valve into the metal water pipe, reaching the double-screw head main sleeve 5 and flowing from the end with a larger cavity diameter of the forming cavity to the end with a smaller cavity diameter to compress the water flow channel, improving the water flow rate. At the same time, in cooperation with the setting of the spiral-shaped forming groove 6031, while increasing the flow rate, the water flow is effectively spirally guided to form a vortex to increase the water flow rate, thus making up for the reduction in water flow velocity and flow rate caused by the bent water pipe installation method.

[0081] S700: Inductive processing: The water flow reaches the water flow sensor 1. Through the electrical connection between the water flow sensor 1 and the gas water heater, the gas water heater heats the water.

[0082] The embodiments disclosed in the present invention are preferred embodiments, but are not limited thereto. Those of ordinary skill in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not depart from the spirit of the present invention, they are within the protection scope of the present invention.

Claims

1. A connection structure between a water flow sensor and a water pipe, characterized in that: It comprises a water flow sensor (1) and a dual-mode connection component (2); Wherein, the dual-mode connection assembly (2) is composed of a multi-directional adaption structure (3) and an inner telescopic sleeve structure (4); The multi-directional adaptable structure (3) is arranged at the input end of the water flow sensor (1); The inner telescopic sleeve structure (4) comprises a double-screw head main sleeve (5) and a functional sleeve assembly (6) arranged inside the double-screw head main sleeve (5); The double-screw main body sleeve (5) is threadedly connected to the input end of the multi-directional adaptable structure (3); The functional sleeve assembly (6) is composed of a plurality of auxiliary sleeves (601) with gradually changing diameters which are sequentially sleeved in series, and the inner cavities of the plurality of auxiliary sleeves (601) form a flow channel with a gradually changing flow path; Wherein, the functional sleeve assembly (6) has a retracted state and an expanded state; When the functional sleeve assembly (6) is in an expanded state, the small-aperture end of the flow channel is the input end, and the gap between the outer wall of the functional sleeve assembly (6) and the inner wall of the double-screw main sleeve (5) forms a filtering receiving cavity; When the functional sleeve assembly (6) is in a contracted state, the large-aperture end of the flow channel serves as an input end, and the inner wall gap of the functional sleeve assembly (6) forms a vortex conveying cavity.

2. The connection structure between the water flow sensor and the water pipe according to claim 1, characterized in that: The multi-directional adaptable structure (3) comprises a fixed connection housing (301) and an adjustment block (302); The fixed connection housing (301) is arranged at the input end of the water flow sensor (1), and an adaption groove (3011) is provided at the bottom of the fixed connection housing (301), wherein a guide block (3012) is provided inside the fixed connection housing (301) via a connecting shaft; and a conveying channel with large ends and a small middle end is provided inside the guide block (3012); The adjustment block (302) is rotatably arranged inside the fixed connection shell (301), and a hole groove adapted to rotate with the connection shaft is provided on the inner surface of the adjustment block (302), wherein an input hole (3021) and two output holes (3022) are provided on the surface of the adjustment block (302), and the two output holes (3022) are separated by a sealing block.

3. The connection structure between the water flow sensor and the water pipe according to claim 2, characterized in that: The multi-directional adaptable structure (3) further comprises an extended connecting elbow (303); The extended connection bend (303) is rotatably arranged on the input hole (3021), and the extended connection bend (303) is in a bent shape; wherein the extended connection bend (303) is composed of a fixed tube (3031) and a movable tube (3032), and the fixed tube (3031) and the movable tube (3032) are rotatably connected via a sealed bearing, and the sealed bearing is arranged at the central axis position of the bent portion of the extended connection bend (303).

4. The connection structure between the water flow sensor and the water pipe according to claim 3, characterized in that: The double-screw main sleeve (5) is composed of a main connecting cylinder (501) and connecting screw heads arranged at both ends of the main connecting cylinder (501), and the main connecting cylinder (501) is connected to the extended connecting elbow (303) through a nut A and one of the connecting screw heads; and the main connecting cylinder (501) is connected to a water pipe through a nut B and the other connecting screw head.

5. The connection structure between the water flow sensor and the water pipe according to claim 4, characterized in that: At least one buckle groove A (502) for connecting with the functional sleeve assembly (6) is arranged inside the double-screw main body sleeve (5).

6. The connection structure between the water flow sensor and the water pipe according to claim 5, characterized in that: The outer surface of the auxiliary sleeve (601) is provided with at least one limiting protrusion (6011), and the inner wall of the auxiliary sleeve (601) is provided with two buckle grooves B (6012) in sequence, and the buckle groove A (502) and the buckle groove B (6012) are movably buckled with the limiting protrusion (6011), and two adjacent auxiliary sleeves (601) are movably connected.

7. The connection structure between the water flow sensor and the water pipe according to claim 6, characterized in that: The auxiliary sleeve (601) is composed of at least one hollow portion (602), a flow guide portion (603) and an overlap portion (604), wherein the flow guide portion (603) is arranged relatively close to the end with a larger cavity diameter of the flow channel, and the inner walls of the plurality of flow guide portions (603) form a forming cavity with a gradually changing cavity diameter in a contracted state; and the inner wall of the forming cavity is provided with a plurality of spiral forming grooves (6031); and the surface of the hollow portion (602) is evenly provided with a plurality of filtering holes.

8. The connection structure between the water flow sensor and the water pipe according to claim 7, characterized in that: The diameter of the filter receiving cavity is a gradual structure.

9. The method for using the connection structure between a water flow sensor and a water pipe as claimed in claim 8, characterized in that: The following steps are involved: S100: Gas water heater installation process: manually install the gas water heater on the building wall; S200: Measurement process: Measure the length of the required metal pipe connection by using a measuring tool, and the dimension needs to maintain the horizontal and vertical measurement standards; S300: Adjustment process: If the cold water input angle valve is relatively located in the vertical direction, there is no need to bend the metal water pipe: first, manually use a tool to pull out and expand the auxiliary sleeves (601) in sequence, so that the multiple hollow parts (602) are fully exposed, and the limit protrusions (6011) on the outer surface of the auxiliary sleeve (601) are tightened through the buckle groove A (502) and the buckle groove B (6012); then, the multi-directional adaptor structure (3) is manually turned so that the two output holes (3022) are located on both sides of the symmetrical axis of the center of the adjustment block (302), and the angle of the extended connecting elbow (303) and the angle of the rotating adjustment moving pipe (3032) are specifically adjusted according to the relative verticality and a certain vertical deviation angle; then, the rubber pad and the inner telescopic sleeve structure (4) are installed through the nut A; If the relative offset angle of the cold water input angle valve is large, the metal water pipe needs to be bent: Firstly, a plurality of auxiliary sleeves (601) are manually shrunk and folded with the aid of a tool, so that a plurality of guide portions (603) are overlapped in sequence to form a cavity, and the limiting protrusions (6011) on the outer surfaces of the auxiliary sleeves (601) are fastened by means of the buckle grooves A (502) and the buckle grooves B (6012); Then, the multi-directional adaptor structure (3) is manually moved so that one of the output holes (3022) completely overlaps with the output end of the delivery channel, and the other output hole (3022) is in close contact with the fixed connection shell (301) to be blocked. The fixed connection shell (301), the adjustment block (302) and the opening of the extended connection elbow (303) are all connected by a sealing ring to maintain the sealing performance in the blocked state; then, the extended connection elbow (303) is rotated to adjust the angle of the movable tube (3032); finally, the nut A is used to install the rubber pad and the inner telescopic sleeve structure (4); S400: Water pipe installation: Use nut B to install and connect the metal water pipe, rubber pad and inner telescopic sleeve structure (4); S500: Aesthetic treatment: By installing a beauty-blocking strip under the gas water heater, based on the method of horizontally and vertically bending the metal water pipe, only a part of the vertical metal water pipe between the cold water inlet angle valve and the gas water heater is exposed; S600: Operation process: Operation of the non-bend metal water pipe: by opening the drain connected to the gas water heater to allow water to flow, the water is transported from the cold water angle valve into the metal water pipe, to the double-screw head main sleeve (5) and separated from the smallest auxiliary sleeve (601) end into the filter receiving cavity and the impurity particles in the tap water are intercepted through the filter holes of the hollow part (602), effectively reducing the situation in which the relatively high flow rate in the vertical water pipe installation method makes it easier to be directly washed to the water flow sensor at the cold water inlet end of the gas water heater with the water flow, and at the same time, part of the tap water is still circulated through the flow channel, ensuring the basic water flow speed and flow rate; The filter receiving cavity has a gradual diameter structure, and the tap water with an effective flow rate is filtered and processed from the filter holes in the filter receiving cavity by adapting the distance and size; If the bent metal water pipe is operated: by opening the drain connected to the gas water heater to allow water to flow, the water is transported from the cold water angle valve to the metal water pipe, to the double screw head main body sleeve (5) and flows from the end with a larger cavity diameter to the end with a smaller cavity diameter to compress the water flow channel, thereby increasing the water flow rate. At the same time, the setting of the spiral groove (6031) is used to effectively guide the water flow in a spiral manner to form a vortex to increase the water flow rate while increasing the flow rate, thereby compensating for the reduced water flow speed and flow rate caused by the bent water pipe installation method; S700: Induction processing: Water flows into the water flow sensor (1) and is connected to the circuit of the gas water heater through the water flow sensor (1), and the gas water heater heats the water.

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