Water inlet flow fine adjustment structure of rotary wing type water meter

Abstract

The utility model provides a water inlet flow fine adjustment structure of a rotary wing type water meter, and belongs to the technical field of water meters. The ball bowl and the limiting grooves communicated with the ball bowl are arranged on the head portion of the fixing screw, each limiting groove is arranged in the radial direction of the fixing screw, the ball head at one end of the adjusting rod is installed in the ball bowl, the adjusting rod is selectively clamped into one limiting groove, and therefore the adjusting rod can serve as a handle for screwing the fixing screw. The adjusting rod is matched with different limiting grooves, interference of structures such as the meter head and the water inlet on rotation of the adjusting rod is effectively avoided, continuous screwing of the fixing screw is maintained, the other end of the adjusting rod is a matching head, the end of the adjusting screw is provided with a matching hole matched with the ball head, the adjusting screw can be directly screwed through the adjusting rod, and the adjusting rod is convenient to use. The water inlet flow can be adjusted without additional tools, and operation is more convenient and faster.

Description

TECHNICAL FIELD

[0001] The utility model relates to water gauge technical field, concretely relates to a rotor type water gauge water inflow fine adjustment structure. BACKGROUND

[0002] The rotor type water gauge is widely used in the market at present, and is usually used for household water metering, and plays an important role in people's production and life, therefore, the industry has been committed to improving the use performance of the rotor type water gauge.

[0003] At present, the existing rotor type water gauge on the market usually comprises a shell, an impeller measuring mechanism and a speed reduction mechanism, the shell is provided with a water flow channel, the impeller measuring mechanism is installed in the water flow channel, and the impeller measuring mechanism is connected with the speed reduction mechanism, so that when water flows in the water flow channel, counting can be realized through the rotation of the impeller. In addition, in order to improve the adaptability of the rotor type water gauge to different water quality and water pressure of the pipeline and improve the service life of the structure, an adjusting structure is usually arranged on the shell in the industry, such as the mechanical water gauge shell with adjusting device disclosed in patent CN221612184U, which is welded with an adjusting valve seat at the water inlet of the shell, and the adjusting valve seat is sequentially fixed with an adjusting screw, a gasket and a fixing screw from bottom to top, the adjusting valve seat is communicated with the water inlet of the shell through a bypass hole, the adjusting screw is threadedly connected with the adjusting valve seat, the adjusting screw is blocked at the bypass hole, a fixing screw is arranged at the upper end of the adjusting screw, the fixing screw is threadedly connected with the adjusting valve seat, and a gasket is arranged between the two. When the water flow enters from the water inlet of the shell and the pressure is too large, the position of the adjusting screw in the adjusting valve seat can be adjusted downward, so that the overlapping area of the adjusting screw and the bypass hole is increased, the water outlet of the bypass hole is reduced, a small part of the water flow flows out through the bypass hole, and the other water flow normally flows out. The size of the water flow hole is adjusted by adjusting the height of the adjusting screw, the size of the water outlet of the bypass hole and the water pressure are adjusted by using the small hole throttling effect, the water flow is accurately adjusted according to different water quality and water pressure of the pipeline, and the use safety and reading accuracy of the water gauge are ensured. Although the above structure can realize the fine adjustment of the water inflow, when adjusting, the fixing screw needs to be unscrewed by means of a wrench and the like first, then a screwdriver or the like needs to be inserted into the adjusting valve seat and inserted into the reserved hole of the adjusting screw to rotate the adjusting screw, that is, multiple tools need to be used to meet the adjusting requirement, so that the operator needs to carry more tools, which is inconvenient. SUMMARY

[0004] In view of the above problems existing in the prior art, the present application provides a rotor type water meter water inflow fine adjustment structure, which is characterized in that a ball bowl is arranged at the center of the head of the fixing screw, a plurality of limiting grooves communicating with the ball bowl are arranged along the radial direction of the fixing screw, one end of the adjusting rod is provided with a ball head and cooperates with the ball bowl, the other end of the adjusting rod is provided with a cooperating head, and the upper end of the adjusting screw is provided with a cooperating hole corresponding to the cooperating head.

[0005] The specific technical solutions are as follows:

[0006] The rotor type water meter water inflow fine adjustment structure comprises an outer shell, an adjusting valve seat, an adjusting screw, a fixing screw and a gasket, the adjusting valve seat is arranged at the water inlet of the outer shell, the adjusting valve seat is provided with an adjusting flow channel communicating with the water outlet, an adjusting hole is arranged on the adjusting valve seat and communicates with the adjusting flow channel, the adjusting screw is threadedly installed in the adjusting hole and one end of the adjusting screw extends into the adjusting flow channel, the fixing screw is threadedly installed at the hole opening of the adjusting hole, and the gasket is arranged between the fixing screw and the adjusting valve seat.

[0007] The rotor type water meter water inflow fine adjustment structure is characterized in that the plurality of limiting grooves are arranged in a "cross" shape.

[0008] The rotor type water meter water inflow fine adjustment structure is characterized in that the cross section of each limiting groove is rectangular, the cross section of the adjusting rod is also rectangular, and the cooperating hole is a "one" shaped hole.

[0009] The rotor type water meter water inflow fine adjustment structure further comprises a plurality of press covers, each press cover is arranged between two adjacent limiting grooves, and one end of each press cover extends into the ball bowl and presses the ball head.

[0010] The rotor type water meter water inflow fine adjustment structure is characterized in that the press cover is arranged on the head of the fixing screw, a connecting hole is arranged on the press cover, a mounting hole corresponding to the connecting hole is arranged on the head of the fixing screw, and a locking screw is threadedly connected with the corresponding mounting hole after passing through the connecting hole.

[0011] The water inflow fine adjustment structure of the rotary water meter, wherein the outer side wall of the adjusting valve seat is provided with a prompt symbol.

[0012] The water inflow fine adjustment structure of the rotary water meter, wherein the adjusting valve seat and the shell are integrally cast.

[0013] The water inflow fine adjustment structure of the rotary water meter, wherein the water inlet of the shell is provided with a water filter net in front of the adjusting valve seat.

[0014] The water inflow fine adjustment structure of the rotary water meter, wherein the adjusting hole of the adjusting valve seat is provided with a concave step at the hole opening, and one side of the gasket is pressed against the step.

[0015] The water inflow fine adjustment structure of the rotary water meter has the following advantages:

[0016] The water inflow fine adjustment structure of the rotary water meter, by setting a ball bowl on the head of the fixing screw and a plurality of limiting grooves communicating with the ball bowl in the radial direction, and by installing a ball head at one end of the adjusting rod in the ball bowl and setting a cooperating head at the other end of the adjusting rod, and by setting a cooperating hole corresponding to the cooperating head at one end of the adjusting screw, when the flow needs to be adjusted, the operator can swing the adjusting rod to selectively clamp it into one of the limiting grooves, form the handle of the fixing screw, and after swinging by a predetermined angle, switch to another limiting groove to continue to twist the fixing screw, avoiding the interference of the structure on the shell to the operation process. In addition, the cooperating head of the adjusting rod can be directly inserted into the cooperating hole of the adjusting screw, so that the operator can directly twist the adjusting screw by means of the adjusting rod, and use the fixing screw as a handle, without the need for additional tools to achieve adjustment, and the operation is more convenient and better. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The structure diagram of the embodiment of the water inflow fine adjustment structure of the rotary water meter;

[0018] Figure 2 The sectional view of the water inflow fine adjustment structure of the rotary water meter.

[0019] In the drawings: 1, shell; 2, adjusting valve seat; 21, adjusting flow channel; 22, adjusting hole; 23, prompt symbol; 221, step; 3, adjusting screw; 31, cooperating hole; 4, fixing screw; 41, ball bowl; 42, limiting groove; 43, gland; 5, gasket; 6, adjusting rod; 61, ball head; 62, cooperating head; 7, water filter net. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, purposes and effects achieved by the utility model easy to understand, the following embodiments are combined with the drawingsFigure 1 To the attached Figure 2 The technical solutions of the utility model are specifically described, but the following contents are not regarded as limitations of the utility model.

[0021] Figure 1 The structural diagram of an embodiment of the rotor type water meter water inflow flow micro-adjustment structure of the utility model; Figure 2 The sectional view of the rotor type water meter water inflow flow micro-adjustment structure of the utility model. As shown in Figure 1 And Figure 2 The rotor type water meter water inflow flow micro-adjustment structure provided by the embodiment includes: a shell 1, an adjusting valve seat 2, an adjusting screw 3, a fixing screw 4, a gasket 5 and an adjusting rod 6.

[0022] Specifically, the adjusting valve seat 2 is arranged at the water inlet of the shell 1, and the adjusting valve seat 2 is provided with an adjusting flow channel 21 communicated to the water outlet, so that the adjusting channel communicates the water inlet and the water outlet of the adjusting valve seat 2, and meets the flow adjustment requirement. At this time, the adjusting hole 22 is also arranged on the adjusting valve seat 2, and the adjusting hole 22 is communicated with the adjusting flow channel 21, which provides conditions for controlling the size of the adjusting flow channel 21 through the structure in the adjusting hole 22 subsequently. In addition, the adjusting screw 3 is screw-installed in the adjusting hole 22 and one end extends into the adjusting flow channel 21, that is, the operator can adjust the size of the adjusting flow channel 21 by screwing the adjusting screw 3, so as to meet the water inflow flow adjustment requirement. And the fixing screw 4 is screw-installed at the hole opening of the adjusting hole 22, and the hole opening of the adjusting hole 22 is blocked by the fixing screw 4, and at the same time, the gasket 5 is arranged between the fixing screw 4 and the adjusting valve seat 2, so as to realize the sealing of the hole opening of the adjusting hole 22, and the safety and sealing performance are better.

[0023] More specifically, the adjusting rod 6 is installed on the fixing screw 4, so that the operator can rotate the fixing screw 4 through the adjusting rod 6. At this time, a concave ball bowl 41 is arranged at the center of the head of the fixing screw 4, and a plurality of limiting grooves 42 that communicate with the ball bowl 41 are arranged on the head of the fixing screw 4 in the radial direction. The limiting grooves 42 can realize the corresponding of the fixing screw 4 in multiple directions in the circumferential direction, so that the adjusting rod 6 can be adjusted to another limiting groove 42 after being rotated to a certain angle, and the fixing screw 4 can be continuously rotated. In addition, one end of the adjusting rod 6 is a ball head 61 and is installed in the ball bowl 41, so that one end of the ball head 61 of the adjusting rod 6 and the ball bowl 41 on the head of the fixing screw 4 form a universal joint structure, which can adapt to the deflection of the adjusting rod 6 in multiple directions on the fixing screw 4, and provide conditions for the subsequent adjusting rod 6 to be clamped into different limiting grooves 42. In use, the adjusting rod 6 is selectively clamped into a limiting groove 42, and the operator rotates the fixing screw 4 through the adjusting rod 6 as a handle. When the adjusting rod 6 is rotated to a predetermined angle, the fixing screw 4 can be continuously rotated by deflecting the adjusting rod 6 into another limiting groove 42, thereby avoiding the problem that the adjusting rod 6 cannot continuously rotate the fixing screw 4 due to the obstruction of the structure such as the top head and the water inlet on the shell 1, and better adapting to the small space operation requirement. In addition, the other end of the adjusting rod 6 is provided with a matching head 62, and a matching hole 31 corresponding to the matching head 62 is arranged on one end of the adjusting screw 3 close to the adjusting hole 22. The matching head 62 and the matching hole 31 can be matched with each other. For example, a plurality of limiting surfaces are arranged on the matching head 62, and the hole wall of the matching hole 31 has a plurality of matching surfaces corresponding to the limiting surfaces. When the matching head 62 of the adjusting rod 6 is inserted into the matching hole 31 of the adjusting screw 3, the limiting surfaces and the matching surfaces can be matched one by one to realize the mutual limiting of the adjusting rod 6 and the adjusting screw 3. The operator can rotate the adjusting screw 3 through the adjusting rod 6 to realize the water inflow adjustment. At this time, the fixing screw 4 can be used as a handle for the operator to rotate the adjusting screw 3, realizing the multifunctional design of one structure, higher utilization rate of the structure, no need for the operator to carry multiple adjustment tools, better adjustment convenience, and more reasonable structure design.

[0024] More specifically, the plurality of limiting grooves 42 on the head of the fixing screw 4 are arranged in a "cross" shape. Since the top head and the water inlet of the shell 1 can be located in the same plane in the vertical direction, when two limiting grooves 42 correspond to the top head and the water inlet respectively, the other two limiting grooves 42 are located between the top head and the water inlet. The adjusting rod 6 clamped into the two limiting grooves 42 is not affected by the limitation of the structure such as the top head and the water inlet, and can smoothly rotate the fixing screw 4. In addition, the problem of increasing the processing amount and reducing the structural strength caused by excessively arranging the limiting grooves 42 is avoided.

[0025] More specifically, the cross section of each limiting groove 42 is rectangular, so that the limiting groove 42 is a flat strip, and the cross section of the adjusting rod 6 is also rectangular, so that the adjusting rod 6 forms a flat strip structure, so that the adjusting rod 6 and the limiting groove 42 are mutually embedded, the adjusting rod 6 is easily clamped into the limiting groove 42, and in addition, the adjusting rod 6 can provide a larger holding area when used as a handle, facilitating the application of force. At the same time, the matching hole 31 is provided as a "one" shaped hole, that is, the matching hole 31 is a strip-shaped hole, which can better cooperate with the flat strip-shaped adjusting rod 6, that is, after the end of the adjusting rod 6 is inserted into the adjusting hole 22, it can be directly limited with the limiting groove 42, without the need for additional matching structure, simple structure, easy to process.

[0026] More specifically, the fixed screw 4 is further provided with a gland 43, at this time, the gland 43 is provided with a plurality of blocks, and the gland 43 is arranged between the two adjacent limiting grooves 42, preferably, one gland 43 is arranged between each two adjacent limiting grooves 42, achieving uniform distribution of the gland 43 on the head of the fixed screw 4. At the same time, one end of the gland 43 extends into the ball bowl 41 and presses the ball head 61, the ball head 61 of the adjusting rod 6 is limited in the ball bowl 41 by the gland 43, preventing the ball head 61 from coming out of the ball bowl 41, in addition, the gland 43 arranged separately will not cover the limiting groove 42, ensuring that the adjusting rod 6 can be smoothly clamped into any limiting groove 42, and the structure design is more reasonable.

[0027] More specifically, the gland 43 is installed on the head of the fixed screw 4, at this time, a connecting hole is formed on the gland 43, and a mounting hole corresponding to the connecting hole is formed on the head of the fixed screw 4, during assembly, a locking screw is threaded through the connecting hole and connected with the corresponding mounting hole, so that the gland 43 and the head of the fixed screw 4 are connected by the locking screw, which is convenient to assemble and easy to maintain.

[0028] More specifically, a prompt symbol 23 is arranged on the outer side wall of the adjusting valve seat 2, preferably, the prompt symbol 23 can be "+" and "-", and the prompt symbol 23 is arranged on both sides of the circumference of the adjusting valve seat 2, so that the operator can accurately obtain the adjustment direction by the prompt symbol 23 when adjusting the adjusting screw 3, further improving the adjustment convenience.

[0029] More specifically, the adjusting valve seat 2 for adjusting the water inflow is integrally cast with the shell 1 of the water meter, which not only improves the processing efficiency, but also ensures the connection strength of the two, and the structure design is more reasonable.

[0030] More specifically, a water filtering net 7 is arranged in the water inlet of the shell 1 and located in front of the adjusting valve seat 2, which can filter the water at the water inlet, avoiding the influence of impurities in the water on the water metering, and improving the service life of the water meter.

[0031] More specifically, the inner recessed step 221 is arranged at the orifice of the adjusting hole 22 of the adjusting valve seat 2, and one side of the gasket 5 is pressed against the step 221, so that the hidden installation of the gasket 5 is realized when the fixing screw 4 is pressed against the adjusting valve seat 2 through the gasket 5 to realize the sealing, which not only reduces the volume of the adjusting structure, but also realizes the protection of the outer side of the gasket 5, and the structure design is more reasonable.

[0032] The water inlet flow micro-adjusting structure of the rotary wing water meter provided by the embodiment comprises an outer shell 1, an adjusting valve seat 2, an adjusting screw 3, a fixing screw 4, a gasket 5 and an adjusting rod, a ball bowl 41 is arranged at the head of the fixing screw 4, and a plurality of limiting grooves 42 which are in communication with the ball bowl 41 are arranged, each limiting groove 42 is arranged along the radial direction of the fixing screw 4, the ball head 61 at one end of the adjusting rod 6 is installed in the ball bowl 41, and the adjusting rod 6 is selectively clamped into one limiting groove 42, so that the adjusting rod 6 can be used as a handle for screwing the fixing screw 4, and the cooperation of the adjusting rod 6 and the different limiting grooves 42 effectively avoids the interference of the structure of the meter head and the water inlet with the rotation of the adjusting rod 6, so that the fixing screw 4 can be continuously screwed, and the other end of the adjusting rod 6 is a matching head 62, the end of the adjusting screw 3 is provided with a matching hole 31 matched with the ball head 61, the adjusting screw 3 can be directly screwed by the adjusting rod 6, the water inlet flow is adjusted, and no additional tool is needed for adjustment, so that the operation is more convenient and more convenient.

[0033] The above is only the preferred embodiment of the utility model, and does not limit the implementation mode and protection scope of the utility model, and for those skilled in the art, it should be realized that the obtained solutions of equivalent replacement and obvious changes by applying the contents of the utility model specification and drawings should be included in the protection scope of the utility model.

Claims

1. A water inlet flow fine adjustment structure of a rotary-wing water meter, comprising a housing, an adjusting valve seat, an adjusting screw, a fixing screw and a gasket, the adjusting valve seat is arranged at a water inlet of the housing, an adjusting flow channel is arranged in the adjusting valve seat and communicated to a water outlet, an adjusting hole is formed on the adjusting valve seat and communicated with the adjusting flow channel, the adjusting screw is screwed into the adjusting hole and one end of the adjusting screw extends into the adjusting flow channel, the fixing screw is screwed at an orifice of the adjusting hole, and the gasket is arranged between the fixing screw and the adjusting valve seat, characterized in that, The adjusting rod has a ball head at one end and is installed in the ball bowl, selectively clamped into one of the limiting grooves, and has a matching head at the other end.

2. The water intake flow rate trimming structure of a rotary-wing water meter according to claim 1, wherein The limiting grooves are arranged in a cross shape.

3. The water intake flow rate trimming structure of a rotary water meter according to claim 1 or 2, characterized by, The cross section of each limiting groove is rectangular, and the cross section of the adjusting rod is also rectangular.

4. The water intake flow rate trimming structure of a rotary water meter according to claim 1, wherein The adjusting rod has a ball head at one end and is installed in the ball bowl, selectively clamped into one of the limiting grooves, and has a matching head at the other end.

5. The water intake flow rate trimming structure of a rotary water meter according to claim 4, wherein The adjusting rod has a ball head at one end and is installed in the ball bowl, selectively clamped into one of the limiting grooves, and has a matching head at the other end.

6. The water intake flow rate trimming structure of a rotary water meter according to claim 1, wherein The adjusting valve seat is integrally cast with the shell.

7. The water intake flow rate trimming structure of a rotary-wing water meter according to claim 1, wherein The water inlet of the shell is provided with a water filter net on the front side of the adjusting valve seat.

8. The water intake flow rate trimming structure of a rotary water meter according to claim 1, wherein The adjusting valve seat is integrally cast with the shell.

9. The water intake flow rate trimming structure of a rotary-wing water meter according to claim 1, wherein The water inlet of the shell is provided with a water filter net on the front side of the adjusting valve seat. The adjusting valve seat is integrally cast with the shell. The water inlet of the shell is provided with a water filter net on the front side of the adjusting valve seat. The adjusting valve seat is integrally cast with the shell. The water inlet of the shell is provided with a water filter net on the front side of the adjusting valve seat. The adjusting valve seat is integrally cast with the shell. The water inlet of the shell is provided with a water filter net on the front side of the adjusting valve seat. The adjusting valve seat is integrally cast with the shell. The water inlet of the shell is provided with a water filter net on the front side of the adjusting valve seat. The adjusting valve seat is integrally cast with the shell. The water inlet of the shell is provided with a water filter net on the front side of the adjusting valve seat. The adjusting valve seat is integrally cast with the shell. The water inlet of the shell is provided with a water filter net on the front side of the adjusting valve seat. The adjusting valve seat is integrally cast with the shell. The water inlet of the shell is provided with a water filter net on the front side of the adjusting valve seat. The adjusting valve seat is integrally cast with the shell. The water inlet of the shell is provided with a water filter net on the front side of the adjusting valve seat. The adjusting valve seat is integrally cast with the shell. The water inlet of the shell is provided with a water filter net on the front side of the adjusting valve seat. The adjusting valve seat is integrally cast with the shell. The water inlet of the shell is provided with a water filter net on the front side of the adjusting valve seat. The adjusting valve seat is integrally cast with the shell. The water inlet of the shell is provided with a water filter net on the front side of the adjusting valve seat. The adjusting valve seat is integrally cast with the shell. The water inlet of the shell is provided with a water filter net on the front side of the adjusting valve seat. The adjusting valve seat is integrally cast with the shell. The water inlet of the shell is provided with a water filter net on the front side of the adjusting valve seat. The adjusting valve seat is integrally cast with the shell. The water inlet of the shell is provided with a water filter net on the front side of the adjusting valve seat. The adjusting valve seat is integrally cast with the shell. The water inlet of the shell is provided with a water filter net on the front side of the adjusting valve seat. The adjusting valve seat is integrally cast with the shell. The water inlet of the shell is provided with a water filter net on the front side of the adjusting valve seat. The adjusting valve seat is integrally cast with the shell. The water inlet of the shell is provided with a water filter net on the front side of the adjusting valve seat. The adjusting valve seat is integrally cast with the shell. The water inlet of the shell is provided with a water filter net on the front side of the adjusting valve seat. The adjusting valve seat is integrally cast with the shell. The water inlet of the shell is provided with a water filter net on the front side of the adjusting valve seat. The adjusting valve seat is integrally cast with the shell. The water inlet of the shell is provided with a water filter net on the front side of the adjusting valve

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