CN211452492U - Clamp fastening structure of easy dismouting of water gauge - Google Patents
Clamp fastening structure of easy dismouting of water gauge Download PDFInfo
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- CN211452492U CN211452492U CN202020073795.XU CN202020073795U CN211452492U CN 211452492 U CN211452492 U CN 211452492U CN 202020073795 U CN202020073795 U CN 202020073795U CN 211452492 U CN211452492 U CN 211452492U
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Abstract
The utility model discloses a clamp fastening structure of easy dismouting of water gauge, including dustcoat, clamp fixation clamp, transparent shell, the sheath hose bayonet socket of being qualified for the next round of competitions, clamp, basic table apron and watchcase, the watchcase casting forms, and the both ends are the exit end and the entry end of water respectively about, and the mounting hole is seted up to the upper end, and the top edge circumference of mounting hole forms first annular arch along radial outside protrusion, and first link and second link set up the cartridge hole in vertical direction to set up the connecting hole that runs through first link and second link that the level set up, the upper end of clamp is upwards protruding to form the step face, the beneficial effect of the invention: the installation of clamp and dismantle convenience very, only need dismantle the clamp fixation clamp, lift off the sheath hose bayonet socket of being qualified for the next round of competitions, loosen bolt and nut and just can take off the clamp, the dismouting in-process only need lift off a set of bolt and nut can, change the inside battery of transparent housing, the simple operation.
Description
Technical Field
The utility model belongs to the technical field of water metering device, concretely relates to clamp fastening structure of easy dismouting of water gauge.
Background
The flow meter of water has a plurality of internal parts, and the process is complicated and the efficiency is low during the assembly. The internally mounted has the supply battery, just needs to change the battery of inside after using a period of time, often need open the flowmeter scale when changing. The existing flow meter is complex in structure, inconvenient in battery replacement, low in working efficiency and low in cost, and a plurality of bolts and nuts need to be disassembled and assembled.
SUMMERY OF THE UTILITY MODEL
To the problem that flow measurement water gauge spare part is various, the equipment process is miscellaneous inefficiency among the prior art, changes internal battery, the inconvenient inefficiency of dismouting flowmeter scale, provides the clamp fastening structure of easy dismouting of a water gauge.
An easily-disassembled clamp fastening structure of a water meter comprises an outer cover, a clamp fixing clamp, a transparent shell, an outlet sheath hose bayonet, a clamp, a base meter cover plate and a meter shell,
the meter shell is cast, the left end and the right end of the meter shell are respectively provided with a water outlet end and a water inlet end, the upper end of the meter shell is provided with a mounting hole, the circumference of the upper edge of the mounting hole radially protrudes outwards to form a first annular bulge,
the base meter cover plate and the transparent shell are sequentially arranged above the mounting hole of the meter shell from bottom to top,
the transparent shell is a cover cap with an opening at the lower part, the opening at the lower part of the outer cover is sleeved on the transparent shell,
the hoop is in a ring shape, one end of the hoop is open, a first connecting end and a second connecting end are arranged at the opening, the inside of the hoop protrudes inwards to form a positioning protrusion, the first connecting end and the second connecting end are provided with insertion holes in the vertical direction and are provided with connecting holes which are horizontally arranged and penetrate through the first connecting end and the second connecting end, the upper end of the hoop protrudes upwards to form a step surface,
the hoop is sleeved at the mounting hole at the upper part of the watch case, the positioning bulge is positioned at the lower side of the first annular bulge of the watch case, the positioning effect is realized, the hoop is prevented from sliding out of the watch case, the step surface on the hoop fastens the lower edge of the outer cover along the circumferential direction, the first connecting end and the second connecting end are fastened and connected through a screw and a nut,
the outlet sheath hose bayonet is box-shaped, the rear side opening is sleeved on the first connecting end and the second connecting end and presses the lower edge of the outer cover downwards, the bottom plate of the clamp fixing clamp is provided with a support leg,
the support legs penetrate through the outlet sheath hose bayonet and are inserted into the insertion holes, and the outlet sheath hose bayonet is fixed on the first connecting end and the second connecting end;
the meter cover assembly comprises a turnover cover and a hinge plate, the turnover cover is rotatably connected with the hinge plate, the hinge plate is arranged in a gap between the outer cover and the transparent shell, the inner side of the outer cover protrudes inwards to form a fixed column, the hinge plate is provided with a fixed hole, and the fixed column is inserted into the fixed hole when the hinge plate is arranged between the outer cover and the transparent shell;
the outer circumference of the upper shell is inwards sunken to form a mounting groove for accommodating the hinge plate, and the hinge plate is clamped between the outer cover and the transparent shell and is positioned in the mounting groove.
On the basis of the scheme, the water meter clamp fastening structure easy to assemble and disassemble is characterized in that a hook is formed at the lower end of the support leg, a small hole is formed in the lower side of a bayonet of the outgoing line sheath hose, the tail end of the support leg of the clamp fixing clamp penetrates through the small hole, and the hook is clamped on the end face of the outer side of the small hole.
Preferably, in the easily detachable clamp fastening structure, the lower edge of the outer cover protrudes downward to form a tongue depressor, the front end of the tongue depressor radially extends outward from the outer edge of the outer cover, the first connecting end and the second connecting end form a tongue depressor accommodating groove, and the outlet sheath hose bayonet presses the tongue depressor into the tongue depressor accommodating groove.
On the basis of the scheme, preferably, the clamp fastening structure easy to assemble and disassemble is characterized in that a first lead sealing hole is formed in the watch case, a second lead sealing hole is formed in the lower end hook of the supporting leg, and a lead sealing wire penetrates through the first lead sealing hole and the second lead sealing hole to be lead sealed.
On the basis of the scheme, the clamp fastening structure is easy to disassemble and assemble, and a round hole is formed in the front side of the outlet sheath hose bayonet and used for leading out the outlet sheath hose.
Preferably, the clamp fastening structure easy to assemble and disassemble, wherein the upper side of the outlet sheath hose bayonet is provided with a strip hole for accommodating a bottom plate of the clamp fixing clamp.
Preferably, the clamp fastening structure is easy to assemble and disassemble, the lower end of the transparent shell protrudes outwards in the radial direction to form an annular skirt belt, the lower end face of the annular skirt belt protrudes downwards to form a fifth annular protrusion, the annular skirt belt is provided with a second fastening hole, the upper end face of the base surface cover plate is provided with a slot and a first fastening hole, the fifth annular protrusion is inserted into the slot, and a fastening screw penetrates through the first fastening hole and the second fastening hole to be in threaded connection with the upper end face of the watch case to form a fastening threaded hole.
On the basis of the scheme, the upper part of the transparent shell is provided with the wireless antenna placing cavity by the clamp fastening structure easy to disassemble and assemble.
The utility model has the advantages that:
the installation of clamp and dismantle convenience very, only need dismantle the clamp fixation clamp, lift off the sheath hose bayonet socket of being qualified for the next round of competitions, loosen bolt and nut and just can take off the clamp, the dismouting in-process only need lift off a set of bolt and nut can, change the inside battery of transparent housing, the simple operation.
Drawings
Fig. 1 is a cross-sectional view of an embodiment of the present invention;
fig. 2 is a cross-sectional view of an embodiment of the present invention;
fig. 3 is a schematic diagram of a watch case structure according to an embodiment of the present invention;
fig. 4 is a schematic view of a transparent housing according to an embodiment of the present invention;
FIG. 5 is a schematic view of the structure of the impeller case cover according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a base meter cover plate according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a base cover plate according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of an inductance PCB platen according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of an inductance PCB platen according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of a battery clamping plate according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of a circuit board according to an embodiment of the present invention;
fig. 12 is a schematic structural diagram of a transparent housing according to an embodiment of the present invention;
fig. 13 is a schematic structural diagram of a transparent housing according to an embodiment of the present invention;
fig. 14 is a schematic structural view of a watch case according to an embodiment of the present invention;
fig. 15 is a schematic structural diagram of a clamp according to an embodiment of the present invention;
fig. 16 is a schematic structural diagram of a transparent cover according to an embodiment of the present invention;
fig. 17 is a schematic structural diagram of a clip fixing clip according to an embodiment of the present invention;
fig. 18 is a schematic structural diagram of a wire outlet sheath hose bayonet according to an embodiment of the present invention;
fig. 19 is a schematic structural diagram of a wire outlet sheath hose bayonet according to an embodiment of the present invention;
fig. 20 is a glue-pouring route diagram according to an embodiment of the present invention;
fig. 21 is a schematic structural diagram of a cover assembly according to an embodiment of the present invention.
Detailed Description
The technical solution of the present invention will be further explained with reference to the drawings in the embodiments of the present invention.
As shown in fig. 1, an easily detachable clamp fastening structure of a water meter is characterized by comprising an outer cover 14, a clamp fixing clamp 16, a transparent shell 17, an outlet sheath hose bayonet 18, a clamp 19, a base cover plate 29 and a meter shell 32, wherein the meter shell 32 is cast, the left end and the right end are respectively an outlet end and an inlet end of water, the upper end is provided with a mounting hole 321, the upper edge circumference of the mounting hole 321 is radially and outwards protruded to form a first annular protrusion 323, the base cover plate 29 and the transparent shell 17 are sequentially mounted above the mounting hole 321 of the meter shell 32 from bottom to top, the transparent shell 17 is a cover with an opening at the lower part, the opening at the lower part of the outer cover 14 is sleeved on the transparent shell 17, the clamp 19 is annular, one end of the clamp 19 is opened, the opening is provided with a first connecting end 191 and a second connecting end 192, the inside of the clamp 19 is inwards protruded to form a positioning protrusion 193, the first connecting end 191 and the second connecting end 192, a connecting hole 195 horizontally arranged and penetrating the first connecting end 191 and the second connecting end 192 is opened, the upper end part of the hoop 19 is upwards protruded to form a step surface 197, the hoop 19 is sleeved at the mounting hole 321 at the upper part of the watchcase 32, the positioning protrusion 193 is positioned at the lower side of the first annular protrusion 323 of the watchcase 32 to play a positioning role and prevent the hoop 19 from sliding out of the watchcase 32, the step surface 197 on the hoop 19 fastens the lower edge of the outer cover 14 along the circumferential direction, the first connection end 191 and the second connection end 192 are fastened and connected by a screw and a nut, the outlet sheath hose bayonet 18 is box-shaped, the rear side opening is sleeved on the first connecting end 191 and the second connecting end 192, and presses down on the lower edge of the cover 14, the clip retainer clip 16 has legs 161 on the base, the support leg 161 penetrates through the outlet sheath hose bayonet 18 and is inserted into the insertion hole 194, so that the outlet sheath hose bayonet 18 is fixed to the first connecting end 191 and the second connecting end 192.
The lower end of the supporting leg 161 forms a hook 162, a small hole 181 is formed in the lower side of the outlet sheath hose bayonet 18, the tail end of the supporting leg 161 of the clamp fixing clamp 16 penetrates through the small hole 181, and the hook 162 is clamped on the end face of the outer side of the small hole 181. The lower edge of the outer cover 14 protrudes downwards to form a pressing tongue 141, the front end of the pressing tongue 141 extends outwards in the radial direction from the outer edge of the outer cover 14, a pressing tongue accommodating groove 196 is formed on the first connecting end 191 and the second connecting end 192, and the outlet sheath hose bayonet 18 presses the pressing tongue 141 in the pressing tongue accommodating groove 196.
As shown in fig. 21, the watch cover assembly 13 includes a flip cover 131 and a hinge plate 132, the flip cover 131 is rotatably connected to the hinge plate 1, and the hinge plate 16 is installed in the gap between the outer cover 14 and the transparent casing 17.
The inner side of the outer cover 14 protrudes inwards to form a fixing column 142, the hinge plate 132 is provided with a fixing hole 133, and when the hinge plate 132 is installed between the outer cover 14 and the transparent shell 17, the fixing column 142 is inserted into the fixing hole 133.
The outer circumference of the upper case 21 is recessed inward to form a mounting groove 177 for receiving the hinge plate 132. As shown in fig. 21, the hinge plate 132 is substantially rectangular, the mounting groove 177 is a rectangular groove, and the hinge plate 132 is engaged between the cover 14 and the transparent housing 17 and is positioned in the mounting groove 213. The outline of the outer side of the whole instrument is a smooth cylindrical surface without a convex part or a concave part, so that the appearance is attractive and elegant.
The installation of clamp 19 with dismantle very convenient, only need dismantle clamp fixation clamp 16, lift off the sheath hose bayonet socket 18 of being qualified for the next round of competitions, loosen bolt and nut and just can take off clamp 19, the dismouting in-process only need lift off a set of bolt and nut can, change the inside battery of transparent housing 17, the simple operation.
The bolt and the nut are wrapped inside the outlet sheath hose bayonet 18, and the bolt and the nut are not exposed, so that the appearance is concise and attractive.
As shown in fig. 1, the small movement impeller assembly 4 is installed in the small movement impeller box assembly 3, and the upper part of the small movement impeller assembly 4 is provided with an impeller upper metal induction sheet 40.
As shown in fig. 3, the case 32 is cast, the left and right ends are the outlet end and the inlet end of water, the upper end is provided with a mounting hole 321 for mounting the head assembly, a mounting plane 322 is formed inside the case 32, the upper edge of the mounting hole 321 at the upper end protrudes outwards in the radial direction to form a first annular protrusion 323, the upper end of the mounting hole 321 is provided with an internal thread, and the case 32 is further provided with a first sealing hole 324. Fastening screw hole 325 is formed in the upper end surface of case 32.
As shown in fig. 1, the impeller box gland 5, the sheet pressing ring 9 and the metal pressing ring 10 are sequentially installed in the installation hole 321 from top to bottom, wherein the small movement impeller box assembly 3 is pressed downwards by the lower portion of the impeller box gland 5, the metal pressing ring 10 is a circular ring-shaped part, external threads are formed on the outer circumference of the metal pressing ring, internal threads are formed in the installation hole 321, the metal pressing ring 10 is in threaded connection with the installation hole 321, the sheet pressing ring 9, the impeller box gland 5, the small movement impeller box assembly 3 and the filter screen 2 are pressed downwards, and the rubber gasket 1 is pressed inside the casing 32. The small core impeller component 4 is arranged in the small core impeller box component 3, the upper rotating shaft is arranged in the middle blind hole 58 at the lower side of the impeller box gland 5, and the lower end is sleeved on a shaft 301 which is arranged in the middle of the base of the small core impeller box component 3 and is embedded.
Wherein, for the sealing needs, there is rubber gasket 1 between filter screen 2 and mounting plane 322. The impeller box gland 5 is a disc-shaped part, as shown in the figure, a first O-shaped ring 6 is arranged in the mounting hole 321 of the meter shell 32, the first O-shaped ring 6 is positioned between the impeller box gland 5 and the sheet-shaped pressing ring 9, and the first O-shaped ring 6 is pressed and sealed by the sheet-shaped pressing ring 9 and the metal pressing ring 10.
As shown in fig. 5, the impeller box gland 5 is a disc-shaped part, which has a cylindrical body 51 matching with the mounting hole 321, and has a pressing plane 52 matching with the sheet-shaped pressing ring 9 at the upper end, the upper edge of the cylindrical body 51 is removed to form a first gap 53, when the sheet-shaped pressing ring 9 is tightly attached to the pressing plane 52, the lower surface of the sheet-shaped pressing ring 9 and the surface of the mounting hole 321 close the first gap 53 to form a closed cavity to accommodate the first O-ring 6. By the design, the compression amount of the first O-shaped ring 6 is very accurate and is completely ensured by the design size of the first notch 53, and the good sealing performance is ensured.
As shown in fig. 5, the upper end of the impeller casing gland 5 is upwardly protruded to form a third annular protrusion 54, and the third annular protrusion 54 encloses a cavity 57 with an upper opening for mounting the inductor PCB board 8. An inductor mounting blind hole 56 is formed in the lower side surface of the concave cavity 57, and a rotating shaft mounting blind hole 58 is formed in the lower end surface of the impeller box gland 5. The direct-insertion base meter inductor 7 is fixedly installed on the inductor PCB welding plate 8, the inductor PCB plate 8 is placed in the cavity 57, and meanwhile, the direct-insertion base meter inductor 7 is inserted into the inductor installation blind hole 56. When the pin of the inductor 7 of the direct-insert base meter penetrates through the inductor PCB 8, the inductor PCB 8 is pressed, the inductor pin is pressed, and the inductor pin and the inductor PCB 8 are welded into a whole. At this time, the bottom of the inductor is in contact with the bottom of the blind hole 56, so that the distance between the direct-insertion base meter inductor 7 and the metal induction sheet 40 on the upper part of the impeller is ensured to be minimum.
As shown in fig. 6 and 7, the base cover plate 29 has an upper end surface formed with an insertion groove 292 and a first fastening hole 296, and a lower end surface outwardly formed with a fourth annular projection 291 and a fifth annular projection 293, wherein the fifth annular projection 293 is located inside the fourth annular projection 291.
As shown in fig. 8 and 9, the inductor PCB pressing plate 11 presses the upper end surface of the inductor PCB plate 8, and presses the inductor PCB plate 8 and the direct-insertion meter inductor 7 thereunder downward into the impeller box pressing cover 5, so as to ensure that the thickness of the bottom wall of the blind hole 56 of the inductor lower impeller box pressing cover 5 is 12mm within 25mm of the distance between the bottom of the inductor and the metal induction sheet 40 on the upper part of the impeller, and the thickness of the metal induction sheet 40 on the upper part of the impeller and the lower part of the impeller box pressing cover 5 is about 08mm, so that the magnetic induction signal is stable and normal under the condition of high rotating speed of the impeller. A sixth annular protrusion 111 is formed on the upper end surface of the inductor PCB pressing plate 11.
As shown in fig. 1, base cover plate 29 is fixedly mounted on case 32 and positioned above inductor PCB pressure plate 11. An elastic pressing piece 12 is arranged between the base meter cover plate 29 and the inductance PCB pressing plate 11, and preferably, the elastic pressing piece 12 is a spring. The upper end of the spring is located in the fifth annular protrusion 293 on the base cover plate 29, and the lower end is located inside the sixth annular protrusion 111 of the inductor PCB pressure plate 11, so as to play a positioning role and prevent the spring from sliding off.
The fourth annular projection 291 of the base cover plate 29 and the third annular projection 54 of the impeller cartridge gland 5 are adapted to each other and are inserted together, and a second O-ring 30 is provided between the first step surface 294 and the second step surface 55 to perform a side sealing function. Therefore, a first sealed glue filling cavity 295 is formed, and the elastic pressing piece 12, the inductor PCB pressing plate 11, the inductor PCB welding plate 8 and the direct-insertion base meter inductor 7 are located in the first glue filling cavity 295. The side seal has the advantage over the end face seal that it is not sensitive to the effect of the vertical displacement of the seal, because in the end face seal, the variation of the displacement of the sealed parts in the vertical direction can cause the variation of the compression of the seal ring, thus affecting the sealing effect; the compression amount of the side seal type seal ring is formed by horizontally pressing, so that the influence of the displacement change of the seal member in the vertical direction on the compression amount of the seal ring is not large.
And the nano paste is filled into the first glue filling cavity 295 to seal the direct-insert base meter inductor 7, so that external moisture is prevented from invading the direct-insert base meter inductor 7 to cause induction failure. The sealing method of the water repellent nano-paste filling mode is very reliable and convenient to operate; on the other hand, while ensuring sealing, the elastic pressing part 12 tightly pushes the PCB 8 and the direct-insertion base meter inductor 7 in the blind hole 56 of the impeller box gland 5, so that strict distance guarantee is provided, the detection distance of the direct-insertion base meter inductor 7 is ensured, and stable and reliable detection is realized. The nano paste has the advantages that the nano paste has certain fluidity, and the elastic pressing piece 12 still keeps good sealing in the process of pressing up and down tiny actions, so that the sealing cannot be damaged. In the existing water meter, AB glue is adopted for glue filling and sealing of the direct-insertion base meter inductor 7, the use method is that the AB glue is filled after the direct-insertion base meter inductor 7 is compressed, and after solidification, the direct-insertion base meter inductor 7 is simultaneously sealed and fixed. This poses a problem in that the requirement for the distance of the in-line base meter inductor 7 is extremely high, so that the detection distance at the front end of the in-line base meter inductor 7 changes to different degrees due to expansion and contraction of the device caused by changes in ambient temperature, and the change of the distance increase is irreversible, thereby directly causing detection failure. For example, under the influence of ambient temperature, the inside of the watch case 32 freezes, and the impeller case gland 5 is lifted upwards from the lower side to deform the impeller case gland, so that the inductor PCB 8 is lifted upwards for a certain distance, and after the ice melts and the impeller case gland 5 deforms and recovers, no external force is applied to the upper side of the inductor PCB 8 to restore the position of the inductor PCB, so that the upward displacement generated by the inductor PCB cannot be restored, and the displacement is repeatedly accumulated, and gradually increases to cause detection failure. The elastic pressing piece 12 has self-adaptive capacity, good self-adaptation can be achieved for the recovery of movement change of the inductor 7 caused by the ambient temperature, and in the process, for possible water vapor, the flowability of the nano paste can cover and protect an object in the sealing cavity from being corroded.
In order to provide a good seal for the first potting cavity 295 and prevent the external water from entering and the internal nano-paste from flowing out, a second O-ring 30 is disposed between the fourth annular projection 291 of the base cover plate 29 and the third annular projection 54 of the impeller casing gland 5. The lower-end outer ring removed material of the fourth annular projection 291 forms a first step surface 294, and the upper-end inner ring removed material of the third annular projection 54 forms a second step surface 55. When the fourth annular projection 291 and the third annular projection 54 are inserted together, the first step surface 294 and the second step surface 55 define an annular cavity for receiving the second O-ring 30.
As shown in fig. 12 and 4, the transparent casing 17 is a cover with an opening at the lower part, the lower end of the cover protrudes outward in the radial direction to form an annular skirt 173, the lower end surface of the annular skirt 173 protrudes downward to form a fifth annular protrusion 171, the annular skirt 173 is provided with a second fastening hole 172, the interior of the annular skirt is provided with a first tightening surface 174 and a seventh annular protrusion 175, and the first annular protrusion 175 encloses a receiving cavity with an opening at the lower part for receiving the LCD screen 251 on the circuit board 25. As shown in fig. 1, the LCD screen 251 is enclosed in the middle of the seventh annular protrusion 175, and a gap is formed between the end of the seventh annular protrusion 175 and the circuit board 25, through which the AB glue can flow. The upper portion of the transparent casing 17 is formed with a wireless antenna seating cavity 176, and when a wireless transmission mode is employed, a wireless antenna is placed in the wireless antenna seating cavity 176.
The cross pan head gasket screw penetrates through the second fastening hole 172 in the transparent shell 17 and the first fastening hole 296 in the base cover plate 29 to be screwed in the fastening threaded hole 325 formed in the meter shell 32, so that the transparent shell 17, the base cover plate 29 and the meter shell 32 are fastened together, the distance between the base cover plate 29 and the impeller box gland 5 is ensured, the elastic pressing piece 12 is in a certain amount of compression state, the inductance PCB welding plate 8 is pressed downwards, and the detection distance is ensured.
Between the transparent casing 17 and the base cover 29, a circuit board 25, a battery clamp 26, and a battery 27 are mounted in this order from top to bottom. The upper end surface of the battery clamping plate 26 is provided with a fixing column 261, and the lower end surface is provided with a battery fixing claw 262.
The battery 27 is positioned in the middle of the battery fixing jaw 262 and is fixed to the lower portion of the battery clamping plate 26 by the battery fixing jaw 262. The circuit board 25 is provided with a mounting hole, the circuit board is tightly sleeved on the fixing column 261 in a matching mode, the lower portion of the first jacking surface 174 positions the battery clamping plate 26, the periphery of the outer edge of the battery clamping plate 26 is tightly matched with the inner side of the transparent shell 17, and the seventh annular protrusion 175 surrounds the periphery of the LCD screen 251.
As shown in fig. 15, the clamp 19 is in a circular ring shape, and has an open end, the open end has a first connection end 191 and a second connection end 192, the inside of the clamp 19 protrudes inward to form a positioning protrusion 193, the first connection end 191 and the second connection end 192 are provided with insertion holes 194 in the vertical direction, and are provided with connection holes 195 horizontally arranged to pass through the first connection end 191 and the second connection end 192, and the first connection end 191 and the second connection end 192 are provided with tongue pressing receiving grooves 196. The upper end of the yoke 19 is upwardly protruded to form a stepped surface 197.
As shown in fig. 16, the cover 14 has a cylindrical shape with upper and lower openings, the upper portion is rotatably connected to the bezel assembly 13 by a hinge without a projection, and a lower edge of the upper portion projects downward to form a pressing tongue 141, and a front end of the pressing tongue 141 projects radially outward beyond an outer edge of the cover 14.
As shown in fig. 17, the bottom plate of the clip fixing clip 16 has two legs 161, the lower ends of the legs 161 form hooks 162, and a second lead sealing hole 163 is opened.
As shown in fig. 18 and 19, the outlet sheath hose bayonet 18 is box-shaped, the rear side of the outlet sheath hose bayonet is sleeved on the first connection end 191 and the second connection end 192, the front side of the outlet sheath hose bayonet is provided with a circular hole 182 for leading out the outlet sheath hose, the upper side of the outlet sheath hose bayonet is provided with a strip hole 183 for accommodating the bottom plate of the clip fixing clip 16, and the lower side of the outlet sheath hose bayonet is provided with a small hole 181. The end of the leg 161 of the clip retainer clip 16 passes through the aperture 181, and the hook 162 is engaged with the outer end surface of the aperture 181.
As shown in fig. 20, a first glue filling hole 601 penetrates through the transparent casing 17, the circuit board 25 and the battery clamping plate 26, and a through hole is also formed in the base cover plate 29. When pouring the nanometer cream, the play jiao kou of gluing the rifle stretches into in first encapsulating hole 601, and the end that goes out jiao kou extends to the downside of battery splint 26, begins to pour into the nanometer cream into, and the nanometer cream can flow into first encapsulating cavity 295 along the through-hole on the base table apron 29, will cut straightly base table inductance 7 and totally not pass the completion and seal, and the liquid level of nanometer cream reaches the downside terminal surface department of battery splint 26, and dotted line department position as shown in the figure also does not pass and seals the battery of battery splint 26 lower part.
The second glue filling hole 602 penetrates through the transparent shell 17 and the circuit board 25, when the AB glue is filled, the glue gun is inserted into the second glue filling hole 602, the glue outlet is located on the lower side of the transparent shell 17, the AB glue flows in, and the circuit board 25 is submerged and sealed. The AB glue enters the receiving cavity surrounded by the first annular protrusion 175 and having a lower opening through the gap between the end of the seventh annular protrusion 175 and the circuit board 25, and seals the LCD screen 251 therein. As shown in the figure, the upper liquid level of the AB glue is located at the position of the dotted line on the lower side of the LCD screen 251, the first annular protrusion 175 is enclosed into an accommodating cavity with an open lower portion, and the accommodating cavity is sealed into a closed cavity, the AB glue does not cover the LCD screen 251, the meter cover assembly 13 is opened, and the LCD screen 251 can be read from the upper side of the transparent shell 17.
The cavity that first annular protrusion 175 encloses, at the in-process of encapsulating, AB glue seals it into inclosed cavity, and the air of its inboard can not discharge, and along with the entering of AB glue, inside atmospheric pressure increases, and atmospheric pressure after the increase can prevent that AB glue from continuing to get into, surpassing LCD display screen 251. After the glue is filled, the LCD screen 251 is completely sealed to prevent the erosion of external water vapor and dust.
Because the specific gravity of the AB glue is smaller than that of the nano paste, the AB glue is filled when the lower side is filled with the nano paste, and the AB glue on the upper side cannot flow into the lower side of the battery clamp plate 26.
At present, most of glue filling sealing of the water meter is glue filling operation firstly, and the next step of assembly can be carried out after the AB glue is solidified. The AB glue has long solidification time, needs to wait for a long time, and is very inconvenient for the arrangement of the whole process flow. Structural design is passed through to this application for the operation of encapsulating is gone on again after whole equipment finishes, turns over table lid subassembly 13 and just can be to inside encapsulating operation, and the encapsulating finishes just directly becomes the finished product warehouse entry, has saved the time of waiting for AB glue to solidify in the process flow, to the more flexibility of arrangement of whole process flow, has improved production efficiency.
Among them, nanopaste is Parylene (Parylene), a generic name for a family of thermoplastic polymers synthesized from p-xylene. Also known as water repellent cream, parylene.
It is to be understood that although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. An easily-disassembled clamp fastening structure of a water meter is characterized by comprising a meter cover component (13), an outer cover (14), a clamp fixing clamp (16), a transparent shell (17), an outlet sheath hose bayonet (18), a clamp (19), a base meter cover plate (29) and a meter shell (32),
the watch case (32) is cast, the left end and the right end of the watch case are respectively an outlet end and an inlet end of water, the upper end of the watch case is provided with a mounting hole (321), the circumference of the upper edge of the mounting hole (321) protrudes outwards along the radial direction to form a first annular bulge (323),
the base meter cover plate (29) and the transparent shell (17) are sequentially arranged above the mounting hole (321) of the meter shell (32) from bottom to top,
the transparent shell (17) is a cover with an opening at the lower part, the opening at the lower part of the outer cover (14) is sleeved on the transparent shell (17),
the hoop (19) is in a ring shape, one end of the hoop is open, a first connecting end (191) and a second connecting end (192) are arranged at the opening, a positioning protrusion (193) is formed by inward protrusion in the hoop (19), insertion holes (194) are formed in the first connecting end (191) and the second connecting end (192) in the vertical direction, connecting holes (195) which are horizontally arranged and penetrate through the first connecting end (191) and the second connecting end (192) are formed, a step surface (197) is formed by upward protrusion of the upper end of the hoop (19),
the clamp (19) is sleeved at a mounting hole (321) at the upper part of the watch case (32), the positioning bulge (193) is positioned at the lower side of a first annular bulge (323) of the watch case (32) to play a role in positioning and prevent the clamp (19) from sliding out of the watch case (32), a step surface (197) on the clamp (19) fastens the lower edge of the outer cover (14) along the circumferential direction, and the first connecting end (191) and the second connecting end (192) are fastened and connected through a screw and a nut,
the outlet sheath hose bayonet (18) is box-shaped, the rear side opening is sleeved on the first connecting end (191) and the second connecting end (192) and presses the lower edge of the outer cover (14) downwards, a support leg (161) is arranged on the bottom plate of the clamp fixing clamp (16),
the supporting foot (161) penetrates through the outlet sheath hose bayonet (18) and is inserted into the insertion hole (194), and the outlet sheath hose bayonet (18) is fixed on the first connecting end (191) and the second connecting end (192);
the watch cover component (13) comprises a flip cover (131) and a hinge plate (132), the flip cover (131) is rotatably connected with the hinge plate (132), and the hinge plate (132) is arranged in a gap between the outer cover (14) and the transparent shell (17);
the inner side of the outer cover (14) protrudes inwards to form a fixing column (142), a fixing hole (133) is formed in the hinge plate (132), and when the hinge plate (132) is installed between the outer cover (14) and the transparent shell (17), the fixing column (142) is inserted into the fixing hole (133);
the outer circumference of the transparent shell (17) is inwards sunken to form a mounting groove (177) for accommodating the hinge plate (132), and the hinge plate (132) is clamped between the outer cover (14) and the transparent shell (17) and is simultaneously positioned in the mounting groove (177).
2. The clamp fastening structure of the water meter easy to disassemble and assemble as claimed in claim 1, wherein the lower end of the leg (161) forms a hook (162), the lower side of the outlet sheath hose bayonet (18) is provided with a small hole (181), the end of the leg (161) of the clamp fixing clip (16) passes through the small hole (181), and the hook (162) is clamped on the outer end face of the small hole (181).
3. The clip fastening structure of a water meter easy to disassemble and assemble according to claim 1, wherein the lower edge of the cover (14) is protruded downward to form a pressing tongue (141), the front end of the pressing tongue (141) is protruded outward in the radial direction from the outer edge of the cover (14),
a tongue-depressing receiving groove (196) is formed on the first connecting end (191) and the second connecting end (192),
the outlet sheath hose bayonet (18) presses the tongue depressor (141) in the tongue depressor accommodating groove (196).
4. The clamp fastening structure of the water meter easy to disassemble and assemble as claimed in claim 2, wherein the meter case (32) is provided with a first lead sealing hole (324), the hook (162) at the lower end of the supporting leg (161) is provided with a second lead sealing hole (163), and the lead sealing line passes through the first lead sealing hole (324) and the second lead sealing hole (163) for lead sealing.
5. The easy-to-mount clamp fastening structure of a water meter according to claim 1, wherein a circular hole (182) is formed in a front side of the outlet sheath hose bayonet (18) for leading out the outlet sheath hose.
6. An easily detachable clip fastening structure of a water meter according to claim 1, wherein the outlet sheath hose bayonet (18) is formed with a long hole (183) at an upper side thereof for receiving a bottom plate of the clip fixing clip (16).
7. The easy-to-assemble clamp fastening structure of a water meter according to claim 1, wherein the lower end of the transparent case (17) is protruded outward in a radial direction to form an annular skirt (173), the lower end surface of the annular skirt (173) is protruded downward to form a fifth annular protrusion (171), the annular skirt (173) is opened with a second fastening hole (172),
the upper end surface of the base surface cover plate (29) is provided with a slot (292) and a first fastening hole (296),
the fifth annular bulge (171) is inserted into the slot (292), and a fastening screw penetrates through the first fastening hole (296) and the second fastening hole (172) to be in threaded connection with a fastening threaded hole (325) formed in the upper end face of the watch case (32).
8. The clip fastening structure of an easy-to-detach water meter according to claim 1, wherein the upper portion of the transparent case (17) is formed with a wireless antenna seating chamber (176).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020073795.XU CN211452492U (en) | 2020-01-14 | 2020-01-14 | Clamp fastening structure of easy dismouting of water gauge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020073795.XU CN211452492U (en) | 2020-01-14 | 2020-01-14 | Clamp fastening structure of easy dismouting of water gauge |
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| CN211452492U true CN211452492U (en) | 2020-09-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114777869A (en) * | 2022-04-12 | 2022-07-22 | 宁波东海集团有限公司 | Water meter with interchangeable metering module |
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2020
- 2020-01-14 CN CN202020073795.XU patent/CN211452492U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114777869A (en) * | 2022-04-12 | 2022-07-22 | 宁波东海集团有限公司 | Water meter with interchangeable metering module |
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