KR102804292B1 - Digital vertical waltman type water meter - Google Patents

Abstract

The present invention relates to a digital vertical Woltman-type water meter that prevents measurement errors by using an optical sensor to measure flow rate, and detects temperature and a magnetic field to generate a freeze and water level alarm signal and transmits the same to a control center, the water meter comprising: a body having an inlet and an outlet formed at both ends of a housing portion through which tap water flows in and out; a flow rate detection portion mounted in a hollow portion of the body and having an impeller portion built in; a light blocking portion protrudingly formed on an upper portion of the flow rate detection portion so as to rotate in conjunction with the rotation of the impeller portion; a sealing protection portion made of a transparent material that covers the upper portion of the light blocking portion so as to be rotatable and is sealingly connected to a central hole of the cover portion; and a cover portion that is fixedly joined to an upper fastening portion of the body; and a measuring portion that is joined to an upper portion of the body portion and detects and measures the rotation of the light blocking portion by an optical sensor, displays the result, and transmits the result to a communication terminal.

Description

Digital vertical WALTMAN type water meter {DIGITAL VERTICAL WALTMAN TYPE WATER METER}

The present invention relates to a digital vertical Woltman type water meter, and more specifically, to a digital vertical Woltman type water meter which prevents measurement errors by measuring flow using an optical sensor, and detects temperature and magnetic fields to generate freeze and water level alarm signals and transmits them to a control center.

A water meter is a measuring instrument that measures the total amount of water flowing through a water pipe, and a digital water meter in particular is a measuring instrument that electronically measures tap water usage.

Digital water meters of this type generally measure water quantity using permanent magnets and MR sensors (induction coils, etc.), but the phenomenon of malfunctioning due to external magnetic force in the detection method has been pointed out as a serious problem in terms of illegal use of tap water.

Therefore, in order to improve this, a sensing method using a non-magnetic body instead of a permanent magnet was developed. However, it was confirmed that the sensing method using the non-magnetic body also does not perform accurate measurements when a magnetic force approaches from the outside because the structure of the sensor that detects the non-magnetic body includes a magnetic component.

To solve this problem, a measurement method using an optical sensor that does not contain any magnetic material has recently been proposed.

The water meter using the above optical sensor measures the amount of tap water used using light, and is attracting attention as a technology that can solve the problem of water consumption because it has no correlation with external magnetic force.

In addition, recently, water usage data measured by digital water meters can be transmitted wirelessly to a control center (e.g., a waterworks office) via a communication module, allowing meter readers to read water meters remotely and automatically without having to read them one by one.

Meanwhile, a large-capacity water meter called a vertical Waltman type water meter is a water meter installed in places that use large amounts of tap water, such as commercial buildings or buildings, and includes a main body with an inlet and an outlet formed at both ends, and a measuring unit mounted on the upper part of the main body to measure the flow rate.

The present invention applies an optical sensor measurement method to a digital vertical Woltman type water meter, but improves the structure to enhance the assemblability and includes very useful functions.

Patent Publication No. 10-2242453 (Registration Date: April 14, 2021) Patent Publication No. 10-0947667 (Registration Date: March 8, 2010) Patent Publication No. 10-0913284 (Registration date: August 13, 2009) Patent Publication No. 10-2433655 (Registration Date: August 12, 2022) Patent Publication No. 10-2242453 (Registration Date: April 14, 2021)

The present invention has been made under the above-mentioned background, and an object of the present invention is to provide a digital vertical Woltman type water meter that can measure flow rate using an optical sensor and prevents measurement errors.

Another object of the present invention is to provide a digital vertical Woltman-type water meter that detects a magnetic field near the water meter, generates an alarm signal according to suspicion of illegal use of tap water when a magnetic force exceeding a certain value continues for a certain period of time, and transmits the alarm signal to a communication terminal.

Another object of the present invention is to provide a digital vertical Woltman type water meter that detects the temperature inside the water meter, generates a freeze alarm signal when the temperature remains below a certain temperature for a certain period of time, and transmits the signal to a communication terminal.

In order to achieve the above object, the present invention is characterized by including a main body having an inlet and an outlet formed at both ends of a housing portion through which tap water flows in and out, a flow detection portion mounted in a hollow portion of the body and having an impeller portion built in, a light blocking portion protrudingly formed on an upper portion of the flow detection portion so as to rotate in conjunction with the rotation of the impeller portion, a sealing protection portion made of a transparent material that covers the upper portion of the light blocking portion so as to be rotatable and is sealingly connected to a central hole of a cover portion, and a cover portion that is fixedly joined to an upper fastening portion of the body; and a measuring portion that is joined to an upper portion of the main body portion and detects and measures the rotation of the light blocking portion by an optical sensor, displays the result, and transmits the result to a communication terminal.

In addition, according to the present invention, the light blocking portion is characterized by including a circular plate portion, a shaft coupling portion coupled to the rotational axis of the impeller portion through the lower surface of the circular plate portion, a first blocking portion formed in a cylindrical shape on the upper portion of the circular plate portion and blocking light, a second blocking portion installed on the opposite side to the first blocking portion, and a first opening portion and a second opening portion formed between the first blocking portion and the second blocking portion to allow light to pass therethrough.

In addition, according to the present invention, it is characterized in that a slope is further formed on each of the vertical ends on one side positioned in the direction in which the first blocking portion and the second blocking portion rotate.

In addition, according to the present invention, it is characterized in that a curved portion is further formed on the upper end of one side end where the slope portions of the first blocking portion and the second blocking portion are formed.

In addition, according to the present invention, the sealing protection part is characterized by comprising a cylindrical body, a rotational passage groove formed on the inside of the cylindrical body so as to be rotatable by inserting a light blocking part, a central insertion groove into which the central groove of the sensor guide part of the measuring part is inserted and seated at the top center, and an O-ring groove formed on the outer surface of the cylindrical body and to which an O-ring is coupled.

In addition, according to the present invention, the measuring unit is characterized by comprising: a lower support portion which is fixedly joined to the upper fastening portion of the main body portion and to which an upper case is fixedly joined to the upper portion; a sensor mounting portion made of a transparent material which is installed on the inside of the lower support portion and has a substrate portion having an optical sensor portion mounted thereon at the upper portion and configured to receive a sealed protection portion at the lower portion; an optical sensor portion which is mounted in the mounting groove of the sensor mounting portion and fixedly joined to the substrate portion; a substrate portion on which the optical sensor portion is mounted; a molding cover portion made of a transparent material which is joined to the sensor mounting portion and into which a molding liquid is injected to protect the substrate portion; and an upper case which is fixedly joined to the lower support portion.

In addition, according to the present invention, the sensor mounting portion includes a step portion on which a substrate portion is mounted toward the inside, a receiving groove portion on which a rotational passage groove portion of a sealing protection portion is received toward the bottom, a mounting groove portion and a central groove portion formed on the outer and inner peripheries of the receiving groove portion so that an optical sensor portion is mounted, wherein the mounting groove portion is configured in a circular shape, and at least one mounting groove into which an optical sensor portion is inserted is formed through a partition on the mounting groove portion.

In addition, according to the present invention, the mounting groove is characterized by comprising a pair of first mounting grooves partitioned through a first diaphragm, and a pair of second mounting grooves partitioned through a second diaphragm.

In addition, according to the present invention, the sensor mounting portion is characterized by further forming a fixing portion that is installed on the outer surface and is combined with the fixing plate of the upper case, a catch projection formed on the outer side of the mounting groove portion and inserted into the catch groove of the lower support portion to hold the position when seated on the first exposed portion, and a joining groove in which the substrate portion and the molding cover portion are fastened and fixed.

In addition, according to the present invention, the optical sensor part is characterized by comprising a support member including a contact member that is closely fixed to a substrate member, two pairs of support members that are formed to face each other and have a light sensor inserted and mounted in a hollow shape, an exposed member formed to expose and catch the light sensor through one end of the facing support member, and an extraction hole formed in the contact member so that the lead wire of the mounted light sensor is exposed; and an optical sensor that is mounted in a form where the light emitting element and the light receiving element are caught by the exposed member when the lead wire is inserted into the support member of the support member and the light emitting element and the light receiving element are faced to each other.

In addition, according to the present invention, a plurality of fixing protrusions are formed on the contact portion of the support so as to easily fix the position to the substrate portion.

In addition, according to the present invention, the substrate portion is characterized by having a temperature sensor configured to detect the internal temperature and, when the detected temperature remains below a certain temperature for a certain period of time, generate a freeze alarm signal through a control unit mounted on the PCB and transmit it to a communication terminal through an external data line.

In addition, according to the present invention, the substrate portion is characterized by having a magnetic field detection sensor configured to detect a magnetic field near a measuring portion including a main body portion, and when a magnetic force exceeding a certain value continues for a certain period of time, generate an alarm signal for illegal use due to suspected illegal use of tap water through a control portion mounted on the PCB, and transmit the signal to a communication terminal through an external data line.

In this way, the present invention provides the effect of preventing measurement errors by enabling flow rate measurement using an optical sensor.

In addition, the present invention provides an effect of detecting a magnetic field near a water meter, generating an alarm signal due to suspicion of illegal use of tap water when a magnetic force exceeding a certain value persists for a certain period of time, and transmitting the same to a communication terminal.

In addition, the present invention provides an effect of detecting the temperature inside a water meter, generating a freeze alarm signal when the temperature remains below a certain temperature for a certain period of time, and transmitting the same to a communication terminal.

Figure 1 is a perspective view of a digital vertical Woltman type water meter according to the present invention.
Figures 2 (a) and (b) are front and side views of a digital vertical Woltman type water meter according to the present invention.
Figure 3 is an exploded perspective view of the main body and measuring unit according to the present invention.
Figure 4 is an exploded view of the measuring unit of the present invention.
Figure 5 is an exploded perspective view of a flow sensor and a light blocking unit according to the present invention.
Figures 6 (a) and (b) are configuration diagrams of an impeller according to the present invention.
Figures 7 (a), (b), and (c) are perspective views, side views, and plan views of a light blocking part according to the present invention.
Figures 8 (a) and (b) are perspective views and side cross-sectional views of a sealing protection part according to the present invention.
Figure 9 is an exploded perspective view of a measuring unit according to the present invention.
Figures 10 (a) and (b) are side views and plan views of the lower support part according to the present invention.
Figures 11 (a) and (b) are a plan view and a perspective view of a sensor mounting part according to the present invention.
Figures 12 (a) and (b) are exploded perspective views of the optical sensor unit and support according to the present invention.
Figure 13 is a configuration diagram in which a light sensor unit is mounted on a substrate according to the present invention.
Figure 14 is a perspective view of the upper case according to the present invention.
Figure 15 is a configuration diagram in which a light sensor part is located on the upper part of a cover part according to the present invention.
Figure 16 is a cross-sectional side view of a measuring unit according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the attached drawings.

First, when adding reference signs to components of each drawing, it should be noted that identical components are given the same signs as much as possible even if they are shown on different drawings. In addition, when describing the present invention, if it is determined that a specific description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description is omitted.

FIG. 1 is a perspective view of a digital vertical Woltman type water meter according to the present invention, FIG. 2 (a) and (b) are a front view and a side view of a digital vertical Woltman type water meter according to the present invention, and FIG. 3 is an exploded perspective view of a main body and a measuring unit according to the present invention.

As shown, the digital vertical Woltman type water meter according to the present invention,

It includes a main body (100) in which an inlet (112) and an outlet (113) for tap water are installed at both ends and an impeller part is built in, and a measuring part (200) that is connected to the upper end of the main body (100) and detects and measures the rotation of the impeller part using an optical sensor and displays and transmits the result.

The above main body (100) includes a body (110), a flow detection unit (120), a light blocking unit (130), a sealing protection unit (140), and a cover unit (150) as shown in FIG. 4.

The above body (110) is formed on both sides of the housing portion (111) and includes an inlet portion (112) and an outlet portion (113) through which tap water flows in and out, a hollow portion (115) in which a flow rate detection portion (120) is mounted, an upper fastening portion (116) to which a cover portion (150) is coupled, and a plurality of first fastening grooves (117) formed in the upper fastening portion (116).

The above flow detection unit (120) is configured to rotate the built-in impeller according to the flow of tap water passing through it, and to rotate the light blocking unit (130) formed at the top in conjunction with the rotation of the impeller.

The above-mentioned flow detection unit (120) is configured to allow fluid to pass through the fluid inlet hole (121) and the fluid outlet hole (122) as shown in FIGS. 5 and 6 (a) and (b), and an impeller unit (123) is mounted inside.

The above impeller part (123) is configured so that the impeller (124) rotates by the fluid passing through it, and the rotation of the impeller (124) is configured so that the rotation shaft (127) located inside the train control part (126) rotates by the operation of the worm gear (125), and a light blocking part (130) is coupled to the end (128) of the rotation shaft (127), and the light blocking part (130) is configured so that the rotation of the rotation shaft (127) causes the rotation of the light blocking part (130).

That is, the light blocking part (130) is configured to rotate in proportion to the rotational speed of the impeller (124).

The above light blocking unit (130) is rotatably mounted on the rotation axis (128) of the flow detection unit (120), so that the light sensor unit (230) described below can detect the rotation of the light blocking unit (130).

The above light blocking part (130) includes a circular plate part (131), as shown in (a)(b)(b) of FIG. 7, a shaft coupling part (132) coupled to the rotational axis (127) of the impeller part (123) through the bottom surface of the circular plate part (131), a first blocking part (133) formed in a cylindrical shape on the upper part of the circular plate part (131) to block light, a second blocking part (134) installed on the opposite side to the first blocking part (133), and a first opening part (135) and a second opening part (136) formed between the first blocking part (133) and the second blocking part (134) respectively to allow light to pass through.

On the inner and outer sides of the first blocking portion (133) and the second blocking portion (134), light sensors (light-emitting elements and light-receiving elements) are installed adjacent to each other. As will be described in detail later, when the light-blocking portion (130) rotates, the first blocking portion (113) and the second blocking portion (1346) block the light emitted from the light-emitting elements.

On one side of the vertical end portion positioned in the direction in which the first blocking portion (133) and the second blocking portion (134) rotate, an inclined portion (133a) (134a) is further formed.

The above-mentioned slope portion (133a)(134a) is configured such that one vertical end of the first blocking portion (133) and the second blocking portion (134) is sharpened in the horizontal direction. This is configured to minimize the load applied to the first blocking portion (133) and the second blocking portion (134) when the light blocking portion (130) rotates from a stationary state, thereby enabling smooth rotation.

Specifically, the first blocking part (133) and the second blocking part (134) are located inside the rotational passage groove (142) of the sealing protection part (140). Here, the rotational passage groove (142) of the sealing protection part (140) is a relatively small space and is maintained in a state of being filled with water.

Therefore, the first blocking part (133) and the second blocking part (134) are constantly subjected to a load of water. In this state, especially when the light blocking part (130) is rotated from a stationary state, the water load resistance value applied in the rotational direction of the first blocking part (133) and the second blocking part (134) becomes maximum, which causes problems in normal measurement, such as delayed rotation of the light blocking part (130).

The above-mentioned slope (133a)(134a) has a pointed structure that minimizes the water resistance value during rotation, thereby improving the measurement performance.

In addition, a curved portion (133b, 134b) is further formed on the upper end of one side where the slope portion (133a) (134a) of the first blocking portion (133) and the second blocking portion (134) is formed.

The above curved portions (133b, 134b) perform the function of reducing the load when the first blocking portion (133) and the second blocking portion (134) rotate in the rotational passage groove (231) of the sealed protection portion (140), which is a narrow space filled with water, thereby facilitating smooth rotation.

The above-mentioned sealed protection part (140) is made of a transparent material, is sealedly connected to the central hole (151) of the cover part (150), and a light blocking part (130) is configured to be rotatable at the bottom.

The above-mentioned sealing protection part (140) is composed of a cylindrical body (141), a rotational passage groove (142) formed on the inside of the cylindrical body (141) into which a light blocking part (130) is inserted and rotated, a central insertion groove (143) into which a central groove (226) of a sensor guide part (220) is inserted and seated at the top center, and an O-ring groove (144) formed on the outer surface of the cylindrical body (141) and into which an O-ring is coupled.

The above-mentioned sealed protection part (140) is sealed to prevent water inside the main body part (100) from leaking out through the central hole (151) of the cover part (150), and at the same time, a light sensor part (230) made of a transparent material, described later, is installed nearby to detect the movement of the light blocking part (130).

The above cover part (150) is fixedly joined to the upper fastening part (116) of the body (110), and is composed of a central hole (151) into which the sealing protection part (140) is inserted and joined, a first fastening hole (152) that is fixedly joined to the first fastening groove (117) of the upper fastening part (116) of the body (110) through a fastening member, and a second fastening groove (153) that is fixedly joined to the lower support part (210) of the measuring part (200) that is joined to the upper part.

Meanwhile, the measuring unit (200) includes a lower support unit (210), a sensor mounting unit (220), an optical sensor unit (230), a substrate unit (240), a molding cover unit (250), an upper case (260), and a cover unit (270), as shown in FIG. 9.

The lower support part (210) is fixedly joined to the upper fastening part (116) of the main body part (100) and the upper case (26) is fixedly joined to the upper part, and as shown in (a) and (b) of FIG. 10, the body part (211) is formed with a first exposed part (212) formed on the inside so that the sensor mounting part (220) is installed, a second fastening hole (213) formed in the body part (211) around the first exposed part (212) and fixedly joined to the first fastening groove (117) of the upper fastening part (116) of the main body part (100) through a fastening member, a catch groove (214) formed in the boundary area of the first exposed part (213) and fixing the joining position of the sensor mounting part (220) installed, and a perimeter formed around the upper part (215) of the body part (211) It includes a catch portion (216) that is combined with a catch projection (263) of the upper case (260).

The above sensor mounting part (220) is made of a transparent material, and is configured to accommodate a substrate part (240) having a light sensor part (230) mounted on the upper part and a sealed protection part (140) having a light blocking part (224) built in the lower part, so that the light sensor part (230) can detect the rotation of the light blocking part (130).

The sensor mounting portion (220) includes a step portion (221) on which a substrate portion (240) is mounted on the inside, as shown in (a) and (b) of FIG. 11, a receiving groove portion (222) on which a rotational passage groove (142) of a sealing protection portion (140) is received on the bottom surface, and a mounting groove portion (223) and a central groove portion (226) formed on the outer and inner peripheries of the receiving groove portion (222) and on which a light sensor portion (230) is mounted.

The central insertion groove (143) of the sealing protection part (140) is configured to be received in the central home portion (226).

The above-mentioned mounting groove (223) is configured in a circular shape, and at least one mounting groove into which a light sensor part (230) is inserted is formed through a partition on the mounting groove (223).

The above mounting groove includes a pair of first mounting grooves (224) partitioned by a first partition (224a).

The above-mentioned mounting groove may be composed of the first mounting groove (224) and a pair of second mounting grooves (225) partitioned by a second partition (225a).

The reason why the first mounting groove (224) and the second mounting groove (225) are formed in two here is to enable use without changing the structure of the sensor mounting portion (220) even when the joining position of the light sensor portion (230) is changed according to the component mounting structure of the substrate portion (240).

In addition, the sensor mounting part (220) is made of a transparent synthetic resin material that transmits light, and provides the effect of protecting the light sensor part (230) and making assembly and installation easy.

In addition, the sensor mounting portion (220) is further provided with a fixing portion (227) that is installed on the outer surface and coupled with the fixing plate (264) of the upper case (260), a catch projection (228) that is formed on the outer side of the mounting groove (223) and inserted into the catch groove (214) of the lower support portion (210) to secure the position when installed on the first exposed portion (212), and a joining groove (229) in which the substrate portion (240) and the molding cover portion (250) are fastened and fixed.

The above-mentioned light sensor part (230) is mounted in the mounting groove of the sensor mounting part (220) and is simultaneously fixedly connected to the substrate part (240), and includes a support (131) and a light sensor (232) inserted and mounted in the support (231), as shown in (a) and (b) of FIG. 12.

The above support (131) is composed of a contact portion (231a) that is closely fixed to the substrate portion (240), two pairs of support portions (231b) that are formed to face each other and into which a light sensor (232) is inserted and mounted in a hollow shape, an exposed portion (231c) formed to expose and hook and fix the light sensor (232) at one end of the facing support portion (231b), and an extraction hole (231d) formed in the contact portion (231a) to expose the lead wire of the mounted light sensor (232).

The above light sensor (232) is composed of a pair of light-emitting elements (232a) and light-receiving elements (232c), and is configured so that light emitted from the light-emitting element (232a) is received by the light-receiving element (232c).

The light sensor unit (230) configured in this manner is mounted in a form where the light emitting element (232a) and the light receiving element (232c) are caught by the exposed portion (231c) when the lead wire of the light sensor (232) is inserted into the support portion (231b) of the support (131), and the light emitting element (232a) and the light receiving element (232c) face each other.

At this time, the lead wire of the above-mentioned light sensor (232) is exposed to a certain extent through the extraction hole (231d) as shown in Fig. 9, and is then soldered onto the PCB (241) of the substrate portion (240).

In addition, a plurality of fixing projections (231e) are formed on the contact portion (231a) of the support (231) so that when the support portion (231) is contact-fixed to the PCB (241) of the substrate portion (240) as shown in FIG. 13, the fixing projections are inserted into the position holes (not shown) formed on the PCB (241), thereby facilitating the soldering operation by allowing the lead wires of the optical sensor to be easily inserted into the corresponding positions (pinholes) of the PCB (241).

The light sensor unit (230) configured in this manner is easy to assemble and mount due to the configuration of the support (131) for the light sensor (232) mounted thereon, and the mounting position is the same, thereby resolving the problem of the light emitting element and the light receiving element being mounted at different positions, and at the same time, provides convenience in that the position can be easily mounted and soldered when mounted on the substrate unit (240).

The above-mentioned substrate portion (240) includes a PCB (241), an LCD portion (242) mounted on the PCB (241) and displaying the measured water usage, and a battery portion (243) supplying power, and is configured to transmit the measured water usage information to a communication terminal through an external data line connected to the PCB (241), and an optical sensor portion (230) is soldered and fixed on the bottom surface as shown in FIG. 13.

In addition, a temperature sensor (244) and a magnetic field detection sensor (245) are configured to be further mounted on the PCB (241) of the above-mentioned substrate portion (240).

The above temperature sensor (244) detects the temperature inside the measuring unit (200) including the main body (100), and when the detected temperature remains below a certain temperature for a certain period of time, it generates a freeze alarm signal through a control unit (not shown) mounted on the PCB (241) and transmits it to a communication terminal (meter reading terminal) through an external data line.

When the above communication terminal receives a freeze warning signal through the above substrate (240), it wirelessly transmits the signal to a control center (e.g., waterworks office), thereby enabling water meter freeze prevention management.

The above magnetic field detection sensor (245) detects a magnetic field near a measuring unit (200) including a main body (100), and when a magnetic force exceeding a certain value continues for a certain period of time, it generates an alarm signal for illegal use due to suspected illegal use of tap water through a control unit mounted on a PCB (241) and transmits it to a communication terminal (meter reading terminal) through an external data line.

When the above communication terminal receives an unauthorized use alarm signal through the above substrate (240), it wirelessly transmits the signal to the control center, thereby enabling measures to be taken against unauthorized use of the water meter.

The above molding cover part (250) is coupled to the sensor mounting part (220), and is configured to be connected to the coupling groove (223) of the sensor mounting part (220) through the third fastening hole (251) while the molding liquid is injected to protect the substrate part (240) mounted inside.

The above molding cover part (250) is made of a transparent material and is configured so that the LCD part (242) located inside can be seen from the outside.

The upper case (260) is a case that is fixedly joined to the lower support member (210), and as shown in FIG. 14, a second exposure member (262) is formed in the center of the circular body (261) to expose the upper part of the molding cover member (250), a hooking projection (263) that is hooked to the hooking projection (216) of the lower support member (210) is formed on the inner lower side of the circular body, a fixing plate (264) that is formed vertically on the inner side of the circular body (261) and is inserted and fixed to the fixing member (227) of the sensor mounting member (220), and a case hinge member (265) that is coupled to the cover hinge member (271) of the cover member (270) on one side of the outer circumference of the circular body, and a sealing hole (266) is formed together with the lower support member (210) on the lower side of the case hinge member (265). It consists of.

The above cover part (270) is made of a transparent material and is configured to allow the second exposed part (262) of the upper case (260) to be opened and closed through a cover hinge part (271) on one side.

The assembly process, operation, and function of the present invention configured as described above are described below.

The assembly order can be changed as per your convenience.

First, a flow rate detection unit (120) is mounted in the hollow portion (115) of the body (110) of the main body (100).

At this time, a light blocking unit (130) is mounted on the rotation axis (127) of the flow detection unit (120).

Then, the sealing protection part (140) is inserted and mounted from bottom to top into the central hole (151) of the cover part (150). At this time, the central hole (151) is sealed by the O-ring fitted into the O-ring groove (144) of the sealing protection part (140).

And the cover part (150) is connected to the upper fastening part (116) of the body (110).

At this time, the first blocking part (133) and the second blocking part (134) of the light blocking part (130) are positioned so as to be rotatable in the rotational passage groove (142) of the sealing protection part (140).

When the assembly of the main body (100) is completed in this manner, the lower support part (210) is fastened and fixed to the upper part of the cover part (150), the substrate part (240) with the light sensor part (230) mounted on the sensor mounting part (220) is placed, the molding cover part (250) is fastened and fixed to the sensor mounting part (220), and then the molding liquid is injected and hardened.

When the above molding work is completed, the catch (228) of the sensor mounting part (220) is aligned with the catch groove (214) of the lower support part (210) and then the upper case (260) is fixedly joined to the lower support part (210).

The above cover part (270) is coupled to the case hinge part (265) of the upper case (260).

The measuring unit (200) assembled in this manner has a cross-sectional configuration as in Fig. 16, and light irradiated from the light emitting element (232a) of the light sensor unit (230) as in Fig. 15 is transmitted to the light receiving element (232c) by passing through the receiving groove (222) of the sensor mounting unit (220) made of a transparent material and the rotational passage groove (142) of the sealed protection unit (140).

In addition, this structure is a structure in which a light sensor part (230) and a light blocking part (130) are positioned as shown in FIG. 15, and in detail, two pairs of light-emitting elements (232a) and light-receiving elements (232b) are positioned facing each other on the inner and outer sides based on the first blocking part (133) and the second blocking part (134) of the light blocking part (130), so that when the light blocking part (130) rotates, the first blocking part (133) and the second blocking part (134) and the first opening part (135) and the second opening part (136) rotate in conjunction with it, thereby detecting the passage or blocking of light, thereby detecting the rotational speed of the impeller part (123) (tap water usage).

Meanwhile, although the detailed description of the present disclosure has described specific embodiments, it is obvious that various modifications are possible without departing from the scope of the present disclosure. Therefore, the scope of the present disclosure should not be limited to the described embodiments, but should be determined not only by the scope of the claims described below, but also by equivalents of the scope of the claims.

100: Main body 110: Body
120: Flow detection unit 130: Light blocking unit
131: Circular plate part 132: Side joint part
133: 1st block 134: 2nd block
135: 1st opening 136: 2nd opening
140: Sealed protection part 141: Cylindrical body
142: Rotating passage home 143: Central insertion home
144: O-ring home part 150: Cover part
200: Measuring section 210: Lower support section
220: Sensor mounting part 221: Jaw part
222: Receiving home 223: Mounting home
224: 1st mounting groove 225: 2nd mounting groove
226: Central home part 227: Fixed part
228: stumbling block 220: joining groove
230: Light sensor part 231: Support
231a: Adhesive part 231b: Support part
231c: exposed part 231d: withdrawal hole
231e: Fixed protrusion 232: Light sensor
232a: Light-emitting element 232b: Light-receiving element
240: substrate 244: temperature sensor
245: Magnetic field detection sensor
250: Molding cover 260: Top case
270: Cover part

Claims (13)

A main body comprising a body having an inlet and an outlet formed at both ends of a housing portion through which tap water flows in and out, a flow rate detection portion mounted in a hollow portion of the body and having an impeller portion built in, a light blocking portion protrudingly formed on an upper portion of the flow rate detection portion so as to rotate in conjunction with the rotation of the impeller portion, a sealing protection portion made of a transparent material that covers the upper portion of the light blocking portion so as to be rotatable and is sealedly connected to a central hole of the cover portion, and a cover portion that is fixedly connected to the upper fastening portion of the body; and
It comprises a measuring unit that is coupled to the upper part of the main body and detects and measures the rotation of the light blocking unit with a light sensor, displays the result, and transmits it to a communication terminal;
The above light blocking portion includes a circular plate portion, a shaft coupling portion coupled to the rotational axis of the impeller portion through the lower surface of the circular plate portion, a first blocking portion formed in a cylindrical shape on the upper portion of the circular plate portion and blocking light, a second blocking portion installed on the opposite side facing the first blocking portion, and a first opening portion and a second opening portion formed between the first blocking portion and the second blocking portion respectively to allow light to pass through.
A digital vertical Woltman type water meter, characterized in that each of the vertical ends on one side positioned in the direction in which the first and second blocking parts rotate is further formed with a sloped surface.
delete delete In claim 1,
A digital vertical Woltman type water meter characterized in that a curved portion is further formed on the upper end of one side where the slopes of the first blocking portion and the second blocking portion are formed.
In claim 1,
A digital vertical Woltman-type water meter characterized in that the sealing protection part comprises a cylindrical body, a rotational passage groove formed so as to be rotatable by inserting a light blocking part into the inside of the cylindrical body, a central insertion groove into which the central groove of the sensor guide part of the measuring part is inserted and seated at the top center, and an O-ring groove formed on the outer surface of the cylindrical body and to which an O-ring is coupled.
In claim 1,
The above measuring unit,
A digital vertical Waltman type water meter characterized by comprising: a lower support portion which is fixedly joined to the upper fastening portion of the main body portion and has an upper case fixedly joined to the upper portion; a sensor mounting portion made of a transparent material which is installed on the inside of the lower support portion and has a substrate portion having an optical sensor portion mounted thereon at the upper portion and configured to receive a sealed protection portion at the lower portion; an optical sensor portion which is mounted in the mounting groove of the sensor mounting portion and fixedly joined to the substrate portion; a substrate portion on which the optical sensor portion is mounted; a molding cover portion made of a transparent material which is joined to the sensor mounting portion and into which a molding liquid is injected to protect the substrate portion; and an upper case which is fixedly joined to the lower support portion.
In claim 6,
The above sensor mounting portion includes a ledge portion on which a substrate portion is mounted on the inside, a receiving groove portion on which a rotating passage groove portion of a sealing protection portion is received on the bottom surface, a mounting groove portion and a central groove portion formed on the outer and inner peripheries of the receiving groove portion and in which an optical sensor portion is mounted,
A digital vertical Woltman type water meter characterized in that the above mounting groove is configured in a circular shape, and at least one mounting groove into which a light sensor part is inserted is formed through a grating on the above mounting groove.
In claim 7,
A digital vertical Waltman type water meter characterized in that the above mounting grooves are composed of a pair of first mounting grooves partitioned through a first diaphragm, and a pair of second mounting grooves partitioned through a second diaphragm.
In claim 7,
A digital vertical Waltman-type water meter characterized in that the sensor mounting portion is further formed with a fixing portion that is installed on the outer surface and is combined with the fixing plate of the upper case, a catch projection formed on the outer side of the mounting groove portion and inserted into the catch groove of the lower support portion to hold the position when seated in the first exposed portion, and a joining groove through which the substrate portion and the molding cover portion are fastened and fixed.
In claim 6,
The above-mentioned optical sensor part comprises a support member including a contact part that is closely fixed to the substrate part, two pairs of support parts formed to face each other and in which the optical sensor is inserted and mounted in a hollow shape, an exposed part formed to expose and hook the optical sensor to one end of the facing support part, and a drawing hole formed in the contact part to expose the lead wire of the mounted optical sensor; and
A digital vertical Woltman-type water meter characterized in that it comprises a light sensor in which a light emitting element and a light receiving element are caught by an exposed portion when a lead wire is inserted into the support portion of the support, and the light emitting element and the light receiving element are mounted in a form facing each other.
In claim 10,
A digital vertical Waltman type water meter characterized in that a plurality of fixing projections are formed on the contact portion of the support so that the position can be easily fixed to the substrate.
In claim 6,
A digital vertical Woltman-type water meter characterized in that the above-mentioned substrate comprises a temperature sensor configured to detect the internal temperature and, when the detected temperature remains below a certain temperature for a certain period of time, generate a freeze alarm signal through a control unit mounted on the PCB and transmit it to a communication terminal through an external data line.
In claim 6,
A digital vertical Woltman-type water meter characterized in that the above-mentioned substrate portion comprises a magnetic field detection sensor that detects a magnetic field near a measuring portion including a main body portion, and when a magnetic force exceeding a certain level continues for a certain period of time, generates an alarm signal for illegal use due to suspected illegal use of tap water through a control portion mounted on the PCB, and transmits the signal to a communication terminal through an external data line.

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