CN201003964Y - A water meter for flow impact prevention drive shaft - Google Patents
A water meter for flow impact prevention drive shaft Download PDFInfo
- Publication number
- CN201003964Y CN201003964Y CNU2007201063982U CN200720106398U CN201003964Y CN 201003964 Y CN201003964 Y CN 201003964Y CN U2007201063982 U CNU2007201063982 U CN U2007201063982U CN 200720106398 U CN200720106398 U CN 200720106398U CN 201003964 Y CN201003964 Y CN 201003964Y
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- Prior art keywords
- transmission shaft
- water
- loam cake
- meter
- impact
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model relates to a water meter which is used for preventing the transmission shaft form being impacted by current, comprising a water meter body(1), a recorder(2) which is connected with the water meter body(1), a measuring structure(3) with a transmission shaft(31) which is arranged inside the water meter body(1). An upper cover(4) with a water inlet(41) is arranged on the upper cover of the measuring structure(3). The transmission shaft(31) is movably passedly arranged on the upper cover(4). The part of the transmission shaft(31) which out form the upper cover(4) is inducted with the measuring structure(3). The recorder(2) and the transmission shaft(31) are separated by a sealing board(5), the lower end of which is provided with a round wall(51) which extends downward. The transmission shaft(31) which out form the upper cover(4) is covered inside the round wall(51). With the design that the transmission shaft is covered inside the round wall, which is able to effectively avoid that the current directly impacts the transmission shaft which is out form the upper cover, so that the utility model has the advantages of simple structure and excellent efficiency of preventing the transmission shaft form being impacted by current.
Description
Technical field
The utility model relates to a kind of water meter, relates in particular to the water meter that a kind of anti-current impact transmission shaft.
Background technology
Existing magnetic passes the formula water meter, and its structure has generally comprised a meter body, has water inlet and water delivering orifice, forms flow path between water inlet and the water delivering orifice; One register is connected on the described meter body, to provide along the indication of the water yield of the flow path between water inlet and the outlet; One has the measurement structure of transmission shaft, be arranged in the flow path of described meter body, and in response to the water that flows along it, the upper cap of measurement structure is established one and is had the loam cake 4 ' of outlet pass and seal, described transmission shaft 31 ' activity is located on the loam cake 4 ', and the transmission shaft 31 ' of described measurement structure exposes loam cake 4 ' part and described measurement structure induction; Separate by a seal pad 5 ' between described register and the transmission shaft 31 '.As shown in Figure 7, existing its transmission shaft 31 ' of this water meter is in the flow path that is directly exposed between loam cake 4 ' and the seal pad 5 ', and this water meter in use current impact bigger to the transmission shaft 31 ' that exposes loam cake, magnetic drive block 32 ' on the transmission shaft 31 ' is easily by impact wear, and then cause the inaccuracy of magnetic transmission 32 ', influence the counting of water meter, the coaxial cold-water meter of particularly the sort of rotary-piston positive displacement, it has the big characteristics of flow, and is therefore easier in the transmission shaft that the exposes loam cake infringement that impacts.
It is that the Chinese utility model patent " displacement water meter with rotating piston " of ZL01105259.7 (notification number is CN1299963Y) has disclosed a kind of such structure that one patent No. is arranged, a kind of rotary-piston volumetric water meter, comprise housing, rotary-piston volumetric metering mechanism, character wheel formula counter, it is characterized in that: between described housing and rotary-piston positive displacement water metering mechanism, be provided with a mechanism that can change the direction of a stream of water.Adopt such scheme, watchcase just can be made an one-piece construction, makes the simple in structure of watchcase, and manufacturing process is also uncomplicated, and it is also easy to seal water meter, and can prevent that external magnetic field is dried and scratch.The transmission shaft of measurement structure is exactly the upper surface that exposes loam cake in this water meter, so current are big to the impulsive force of transmission shaft, the magnetic material on the transmission shaft is easily by impact wear.
So existing magnetic transmission water meter also can improve further.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of water meter that can prevent the water impact transmission shaft effectively at above-mentioned prior art present situation, and it has anti-current and directly impacts the effective of transmission shaft, advantage of simple structure.
Another technical matters to be solved in the utility model is that this water meter also has can effectively protect transmission shaft to avoid the advantage that external magnetic field disturbs in the magnetic transmission process.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of anti-current impact the water meter of transmission shaft, comprising: a meter body, have water inlet and water delivering orifice, and form flow path between water inlet and the water delivering orifice; One register is connected on the described meter body, to provide along the indication of the water yield of the flow path between water inlet and the water delivering orifice; One has the measurement structure of transmission shaft, be arranged in the flow path of described meter body, and in response to the water that flows along it, the upper cap of measurement structure is established a loam cake with outlet pass, described transmission shaft activity is arranged in loam cake, and described transmission shaft exposes upper cover part and the induction of described measurement structure; Separate by a seal pad between described register and the transmission shaft; It is characterized in that: between loam cake and seal pad, be provided with the anti-current that the transmission shaft that exposes loam cake can be covered with in it and impact cover.
Improve further, above-mentioned anti-current impact cover for seal pad the lower surface have an annular retaining wall that extends downwards, the transmission shaft that this annular retaining wall will expose loam cake is covered with in it.This annular retaining wall extends from top to bottom, and transmission shaft is covered with in it, it can well prevent the water impact transmission shaft, and this design also can not be brought the increase of new element, have simple in structure, cost is low, the assembling water meter is advantage easily, certainly should anti-current impact cover and also can adopt an independent tube element that transmission shaft can be covered with in it, can seal pad the groove that matches of lower surface moulding one and tube element upper end, the groove that matches in the upper surface of loam cake moulding one and tube element lower end, and will be embedded in the groove of seal pad lower surface on this tube element, the lower end of tube element is embedded in the groove of loam cake upper surface, and then the location.
Further improve, above-mentioned loam cake upper surface has a bulge loop, and this bulge loop is corresponding with annular retaining wall, forms an enclosure space that the transmission shaft sealing of exposing loam cake can be covered with in it between bulge loop and the annular retaining wall.The transmission shaft that exposes loam cake like this is closed in the enclosure space of being made up of bulge loop and annular retaining wall, can prevent well that water impact from exposing the transmission shaft of loam cake.
In order to strengthen the intensity of loam cake, above-mentioned loam cake upper surface forms many reinforcements.
Above-mentioned reinforcement with become radial be distributed in the bulge loop periphery on cover to good.
For effectively preventing external magnetic field to the interference of transmission shaft at the magnetic transmission process, above-mentioned annular retaining wall outside surface is nested with anti-magnetic ring component.
To vertically, and water inlet and water delivering orifice all are positioned at the bottom of meter body along the vertical axes of meter body for above-mentioned water inlet and water delivering orifice.Its flowing water flow in flow path of the coaxial water meter of this rotary-piston type is bigger, more needs to prevent the impact of current to transmission shaft.That is to say that the structure that this anti-current impact transmission shaft is more suitable for being applied in the water meter of this type.
Above-mentioned water delivering orifice is positioned at the center position of meter body bottom, water inlet be distributed in the form of a ring water delivering orifice around.The layout of this water inlet and water delivering orifice is for being connected with special a kind of joint, and this joint is a prior art.
Above-mentioned water inlet and water delivering orifice are vertical along the horizontal axis of meter body, and lay respectively at the meter body both sides.Should prevent that current impacted the structure of transmission shaft, it also can be used in the horizontal water meter of this rotary-piston type.
Compared with prior art, advantage of the present utility model is: it is provided with the anti-current that the transmission shaft that exposes loam cake can be covered with in it and impacts cover between loam cake and seal pad, should anti-current impact cover for seal pad the lower surface have one extend downwards the transmission shaft that exposes loam cake can be covered with annular retaining wall in it, can effectively avoid current directly to impact the transmission shaft that exposes loam cake like this, and its need are done certain structural improvement to seal pad and are got final product in original water meter of the same type, impact cover and need not the anti-current that other increase can be covered with transmission shaft in it, use simple in structure, assemble the same with original water meter of the same type, so the assembling also simple and convenient.
Description of drawings
Fig. 1 is the structure cut-open view of first embodiment of the utility model;
Fig. 2 be among first embodiment of the utility model seal pad stereographic map;
Fig. 3 be among first embodiment of the utility model seal pad cut-open view;
Fig. 4 is the structure cut-open view of loam cake among first embodiment of the utility model;
Fig. 5 is the structure cut-open view (transmission shaft is located in the loam cake state) of loam cake among first embodiment of the utility model;
Fig. 6 is the structure cut-open view of second embodiment of the utility model;
Fig. 7 is arranged on structural representation between loam cake and the seal pad for transmission shaft in the background technology.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Shown in Fig. 1～5, be first embodiment of the present utility model;
As shown in Figure 1, this water meter is the coaxial water meter of rotary-piston type, on sale on this water meter market, the characteristics of this water meter are that water velocity is fast, it comprises: the meter body 1 of a hollow, have water inlet 11 and water delivering orifice 12, form flow path between water inlet 11 and the water delivering orifice 12, water inlet 11 and water delivering orifice 12 along the vertical axes of meter body 1 to vertically, and water inlet 11 and water delivering orifice 12 all are positioned at the bottom of meter body 1, this water inlet 11 and water delivering orifice 12 are threaded with water inlet pipe and rising pipe in the pipeline via a special joint during use, and its center tap and this syndeton are prior art, no longer launch to describe at this;
One register 2, be connected on the described meter body 1, to provide along the indication of the water yield of the flow path between water inlet 11 and the water delivering orifice 12, the magnetic activation record device that this register 2 is a standard, it is connected the top of described meter body 1, thereby the vision indication that provides the occupant to make water consumption, in register 2 is contained in the shroud 8, this shroud 8 is connected on the meter body 1 separably, thereby shroud 8 and the registers 2 that are contained in the shroud 8 are connected on the meter body 1, also are articulated with an end cap 81 at the upper surface of shroud 8, this end cap 81 can cover and protect register 2, this also is a prior art, and it can adopt existing various connected mode;
One has the measurement structure 3 of transmission shaft 31, this measurement structure 3 also is contained in the housing 9, and in the flow path in housing 9 is laid described meter body 1 together, and in response to the water that flows along it, the upper cap of measurement structure 3 is established a loam cake 4 with outlet pass 41, the middle part of loam cake 4 has a perforation 44, described transmission shaft 31 activities are located in the perforation 44 on the loam cake 4, described transmission shaft 31 exposes loam cake 4 parts and 3 inductions of described measurement structure, separates by a seal pad 5 between register 2 and the transmission shaft 31; Described measurement structure 3 is a rotary-piston volumetric metering structure, this measurement structure 3 is the technology of comparative maturity, this measurement structure 3 is also extensively adopted by the magnetic transmission water meter on the market, current are controlled the speed that transmission shaft 31 rotates according to the size of flow during work, the magnetic drive block 32 of transmission shaft 31 upper ends rotates with transmission shaft 31, the magnetic drive block 32 that rotates is sent to different magnetic signals on register 2 magnetic-inductive devices that are positioned at seal pad 5 tops, this magnetic-inductive device drives pointer 21 and rotates, and begin to count, along with constantly passing through of flow, magnetic-inductive device on the transmission shaft 31 induction registers 2, make this magnetic-inductive device constantly drive pointer 21 and rotate counting, so reached the purpose of measuring discharge;
Above-mentioned this register 2, measurement structure 3 are installed in the mode in the meter body 1, the structure that they are own, and their principle of work is all identical with water meter of the same type on sale on the existing market, can be for our information, the characteristics of above-mentioned water meter are that water velocity is fast, therefore more need to prevent water impact transmission shaft 31;
Of the present utility model being improved to: shown in Fig. 2～5, between loam cake 4 and seal pad 5, be provided with the anti-current that the transmission shaft 31 that exposes loam cake 4 can be covered with in it and impact cover, above-mentioned anti-current impact cover for have an annular retaining wall 51 that extends downwards in the lower surface of seal pad 5, annular retaining wall 51 outside surfaces are nested with anti-magnetic ring component 7, the transmission shaft 31 that this annular retaining wall 51 will expose loam cake 4 is covered with in it, has a bulge loop 42 at loam cake 4 upper surfaces, these bulge loop 42 upper surfaces contact with annular retaining wall 51 lower surfaces, make and form an enclosure space 6 that transmission shaft 31 sealings of exposing loam cake 4 can be covered with in it between bulge loop 42 and the annular retaining wall 51; Form many reinforcements 43 at loam cake 4 upper surfaces, 43 one-tenth of this reinforcements are radial to be distributed on the loam cake 4 of bulge loop 42 peripheries.
The principle of work of this embodiment and process are such:
As shown in Figure 1, current flow into from the water inlet 11 of meter body 1, after process measurement structure 3 streams, current drive the gear train transmission in the measurement structure 3, and then allow gear train drive transmission shaft 31 rotations, the magnetic drive block 32 of transmission shaft 31 upper ends rotates with transmission shaft 31, the magnetic drive block 32 that rotates is sent to different magnetic signals on the magnetic-inductive device of the register 2 that is positioned at seal pad 5 tops, this magnetic-inductive device drives pointer 21 and rotates, and begin to count, along with constantly passing through of flow, magnetic-inductive device on the transmission shaft 31 induction registers, make this magnetic-inductive device constantly drive pointer 21 and rotate counting to measure discharge, simultaneously, current are again by entering into behind the outlet pass on the loam cake 4 41 in the flow path between loam cake 4 and the seal pad 5, because under bulge loop 42 barrier effects of annular retaining wall 51 and loam cake 4 upper ends, current can not impact the transmission shaft 31 that exposes loam cake 4, so increase the serviceable life of transmission shaft 31, last current are discharged from the water delivering orifice 12 of meter body 1.
As shown in the figure, it is second embodiment of the present utility model, this water meter is the horizontal water meter of a rotary-piston type, also on sale on this water meter market, the difference of this embodiment and first embodiment is, water inlet 11 and the water delivering orifice 12 of the meter body 1 of this embodiment on it is vertical along the horizontal axis of meter body 1, and lay respectively at meter body 1 both sides, the characteristics of this water meter be water velocity relatively first embodiment is slow slightly, this water inlet 11 and water delivering orifice 12 are threaded with water inlet pipe and rising pipe in the pipeline during use.
The principle of work of this embodiment and process are also similar with first embodiment, just no longer set forth at this.
Claims (9)
1, a kind of anti-current impact the water meter of transmission shaft, comprising:
One meter body (1) has water inlet (11) and water delivering orifice (12), forms flow path between water inlet (11) and the water delivering orifice (12);
One register (2) is connected on the described meter body (1), to provide along the indication of the water yield of the flow path between water inlet (11) and the water delivering orifice (12);
One has the measurement structure (3) of transmission shaft (31), be arranged in the flow path of described meter body (1), and in response to the water that flows along it, the upper cap of measurement structure (3) is established a loam cake (4) with outlet pass (41), described transmission shaft (31) activity is arranged in loam cake (4), and described transmission shaft (31) exposes loam cake (4) part and responds to described measurement structure (3);
Separate by a seal pad (5) between described register (2) and the transmission shaft (31);
It is characterized in that: between loam cake (4) and seal pad (5), be provided with the anti-current that the transmission shaft (31) that exposes loam cake (4) can be covered with in it and impact cover.
2, anti-current according to claim 1 impact the water meter of transmission shaft, it is characterized in that described anti-current impact cover for have an annular retaining wall (51) that extends downwards in the lower surface of seal pad (5), the transmission shaft (31) that this annular retaining wall (51) will expose loam cake (4) is covered with in it.
3, anti-current according to claim 2 impact the water meter of transmission shaft, it is characterized in that described loam cake (4) upper surface has a bulge loop (42), this bulge loop (42) is corresponding with annular retaining wall (51), forms an enclosure space (6) that transmission shaft (31) sealing of exposing loam cake (4) can be covered with in it between bulge loop (42) and the annular retaining wall (51).
4, according to the water meter of claim 1 or 2 or 3 described anti-current impact transmission shafts, it is characterized in that described loam cake (4) upper surface forms many reinforcements (43).
5, anti-current according to claim 4 impact the water meter of transmission shaft, it is characterized in that described reinforcement (43) becomes radial and is distributed on the peripheral loam cake (4) of bulge loop (42).
6,, it is characterized in that described annular retaining wall (51) outside surface is nested with anti-magnetic ring component (7) according to the water meter of claim 2 or 3 described anti-current impact transmission shafts.
7, anti-current according to claim 1 impact the water meter of transmission shaft, it is characterized in that described water inlet (11) and water delivering orifice (12) along the vertical axes of meter body (1) to vertically, and water inlet (11) and water delivering orifice (12) all are positioned at the bottom of meter body (1).
8, anti-current according to claim 8 impact the water meter of transmission shaft, it is characterized in that described water delivering orifice (12) is positioned at the center position of meter body (1) bottom, described water inlet (11) be distributed in the form of a ring water delivering orifice (12) around.
9, anti-current according to claim 1 impact the water meter of transmission shaft, it is characterized in that described water inlet (11) and water delivering orifice (12) are vertical along the horizontal axis of meter body (1), and lay respectively at meter body (1) both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201063982U CN201003964Y (en) | 2007-02-09 | 2007-02-09 | A water meter for flow impact prevention drive shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201063982U CN201003964Y (en) | 2007-02-09 | 2007-02-09 | A water meter for flow impact prevention drive shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201003964Y true CN201003964Y (en) | 2008-01-09 |
Family
ID=39039504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201063982U Expired - Lifetime CN201003964Y (en) | 2007-02-09 | 2007-02-09 | A water meter for flow impact prevention drive shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201003964Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100451569C (en) * | 2007-02-09 | 2009-01-14 | 宁波东海仪表水道有限公司 | Water meter of current rush prevention drive axle |
-
2007
- 2007-02-09 CN CNU2007201063982U patent/CN201003964Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100451569C (en) * | 2007-02-09 | 2009-01-14 | 宁波东海仪表水道有限公司 | Water meter of current rush prevention drive axle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NINGBO EAST CHINA SEA WATERWAY INSTRUMENT CO. Free format text: FORMER OWNER: NINGBO DONGHAI GROUP CORPORATION Effective date: 20080201 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080201 Address after: Ningbo City, Zhejiang province Yinzhou District Heng Street Town Lin village, zip code: 315181 Patentee after: Ningbo Donghai Instrument Waterways Co.,Ltd. Address before: Ningbo City, Zhejiang province Yinzhou District Heng Street Town Lin village, zip code: 315181 Patentee before: Ningbo Donghai Group Corp., Ltd. |
|
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20070209 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |