Valve assembly with liquid sight glass

Abstract

The utility model discloses a valve assembly with a liquid viewing mirror, relates to the technical field of valve assemblies, and aims to solve the technical problem that an existing indicator element is installed inside the liquid viewing mirror and the indication effect is poor. The visual liquid mirror assembly comprises a visual liquid mirror shell internally provided with a visual liquid cavity, an indicator is formed in the middle of the bottom of the visual liquid cavity, a frosted light-transmitting plate is fixedly installed at the top of the indicator, the surface of the frosted light-transmitting plate is coated with a color-changing indicator, and a lamplight module is detachably installed in the visual liquid mirror shell. A spherical block is formed in the center of the surface of the frosted light-transmitting plate, a shading assembly is rotatably mounted at the top of the frosted light-transmitting plate and comprises a sleeving ring rotatably arranged outside the spherical block in a sleeving mode, and a semicircular shading plate used for shielding the frosted light-transmitting plate is formed on the outer edge face of the sleeving ring. The utility model has the advantage of realizing the timely indication effect of the liquid sight glass.

Description

Technical Field

[0001] The utility model relates to the technical field of valve components, and more specifically, to a valve component with a sight glass. Background Art

[0002] A sight glass, also known as a liquid sight glass or an observation mirror, is a device used to observe the state and water content of the refrigerant in the liquid pipeline of a refrigeration system. It is made by a high-temperature sintering process of glass and steel parts, with a beautiful appearance and high strength, and the glass has high transparency, which is convenient for observation. The working principle of the sight glass is based on the design of a liquid water indicator. Through a wide-angle sight glass, the refrigerant of the system can be visually observed to check whether there are bubbles or flashing gases, so as to judge whether the refrigerant dosage is appropriate. At the same time, the indicator element in the sight glass is highly sensitive to water. As the water content in the system changes, it gradually changes color, providing an intuitive indication for the operator.

[0003] Currently, the valve component and the sight glass are usually two separate products. During use, the valve body of the valve component and the sight glass need to be connected in series by welding. The color change on the sight glass indicates the water content in the refrigerant, so as to judge the operating state of the dryer filter in the system. However, since the indicator element is installed inside the sight glass, its color change cannot be detected in time during daily inspections. Usually, it can only be judged by approaching and observing during regular maintenance. Therefore, when the water content in the refrigerant increases, it cannot play an indicating effect in time, which affects the normal operation of the system. In view of this, we propose a valve component with a sight glass. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and meet the actual needs, and provide a valve component with a sight glass to solve the technical problem that the current existing indicator element is installed inside the sight glass and the indicating effect is not good.

[0005] To solve the above technical problems, the utility model provides the following technical solution: A valve component with a sight glass, including a valve body with a sight glass component detachably installed at one end;

[0006] The sight glass component includes a sight glass housing with a sight cavity formed inside. At the center of the bottom of the sight cavity, an indicator is constructed. A frosted light-transmitting plate is fixedly installed at the top of the indicator. A color-changing indicator is coated on the surface of the frosted light-transmitting plate. A lighting module is detachably installed inside the sight glass housing. A spherical block is constructed at the center of the surface of the frosted light-transmitting plate, and a light-shielding component is rotatably installed at the top of the frosted light-transmitting plate;

[0007] The light-shielding component includes a socket ring rotatably sleeved outside the spherical block. A semi-circular light-shielding plate for shielding the frosted light-transmitting plate is formed on the outer edge surface of the socket ring. On both sides of the upper end surface of the semi-circular light-shielding plate, fan-shaped blocks extending upward at different angles are formed by deflecting from the central position. A curved surface positioning groove for fitting and positioning on the surface of the spherical block to achieve a positioning effect is formed at the connection position between the fan-shaped block and the socket ring.

[0008] In this utility model, by designing a frosted light-transmitting plate, a lighting module and a light-shielding component, the lighting module provides backlight for the frosted light-transmitting plate, so that the color-changing indicator on the surface of the frosted light-transmitting plate is more prominent. And when the refrigerant in the system passes through, the refrigerant will drive the semi-circular light-shielding plate to deflect randomly, so that the semi-circular light-shielding plate forms an irregular light-shielding effect on the surface of the frosted light-transmitting plate, so that the light appears on the transparent glass plate through the refraction and scattering of the refrigerant. The deflection of the semi-circular light-shielding plate is conducive to achieving the effect of random flickering, which is conducive to timely observation and judgment from a distance during daily inspections, achieving the effect of timely indication.

[0009] Preferably, an installation groove is formed by extending inward from the bottom of the sight glass housing towards the indicator. The lighting module is detachably arranged in the installation groove. A sealing cap is detachably and hermetically installed on the top of the sight glass housing, and a transparent glass plate is fixedly arranged in the sealing cap.

[0010] Preferably, a lamp board for emitting white light is arranged on the top of the lighting module, and the bottom end of the lighting module extends out of the installation groove and is fixedly connected with a mounting seat.

[0011] Preferably, the mounting seat is detachably connected to the lower end surface of the sight glass housing, and a power-on wire extending into the lighting module and used for supplying power to the lamp board is arranged at the bottom of the mounting seat.

[0012] Preferably, conveying pipes communicating with the inside of the sight glass cavity are symmetrically formed on the outer edge surface of the sight glass housing, and a pipe joint is formed at the end of the conveying pipe far away from the sight glass housing.

[0013] Preferably, a refrigerant pipeline is detachably installed between the valve body and the sight glass assembly, and both ends of the refrigerant pipeline are in threaded fit connection with the pipe joint and the valve body respectively.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The utility model designs a frosted light-transmitting plate, a lighting module and a light-shielding component. The lighting module provides backlight for the frosted light-transmitting plate, making the color-changing indicator on the surface of the frosted light-transmitting plate more prominent. When the refrigerant in the system passes through, the refrigerant drives the semi-circular light-shielding plate to deflect randomly, so that the semi-circular light-shielding plate forms an irregular light-shielding effect on the surface of the frosted light-transmitting plate. As a result, the light appears on the transparent glass plate after being refracted and scattered by the refrigerant. The deflection of the semi-circular light-shielding plate is conducive to achieving the effect of random flashing, which is beneficial for timely observation and judgment from a distance during daily inspections, realizing the effect of timely indication, and solving the problem that the existing indicator components are installed inside the sight glass and the indication effect is not good.

[0016] 2. The utility model also forms fan-shaped blocks with different upward deflection angles on both sides of the upper end surface of the semi-circular light-shielding plate extending from the central position. Since the deflection angles of the fan-shaped blocks are different, the contact areas between them and the refrigerant are also different when the refrigerant flows through, thus enhancing the random deflection effect of the semi-circular light-shielding plate. At the same time, a curved surface positioning groove adapted to fit the surface of the spherical block is formed at the connection position between the fan-shaped block and the socket ring. The contact between the curved surface positioning groove and the spherical block is conducive to improving the stability of the semi-circular light-shielding plate during random deflection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the utility model;

[0018] Figure 2 is an exploded schematic diagram of the sight glass assembly of the utility model;

[0019] Figure 3 is a cross-sectional view of the sight glass assembly of the utility model;

[0020] Figure 4 is a schematic structural diagram of the light-shielding component of the utility model.

[0021] Description of the reference numerals in the drawings:

[0022] 1. Valve body; 2. Refrigerant pipeline; 3. Sight glass assembly; 301. Sight glass housing; 302. Delivery pipe; 303. Pipe joint; 304. Sealing cap; 305. Transparent glass plate; 306. Mounting seat; 307. Lighting module; 308. Energized wire; 309. Indicator; 310. Frosted light-transmitting plate; 311. Spherical block; 4. Light-shielding component; 401. Socket ring; 402. Semi-circular light-shielding plate; 403. Fan-shaped block; 404. Curved surface positioning groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Such as Figures 1-4As shown in the figure, a valve assembly with a sight glass according to the present utility model includes a valve body 1 with a sight glass assembly 3 detachably installed at one end. The sight glass assembly 3 includes a sight glass housing 301 with a sight glass cavity formed inside. At the center of the bottom of the sight glass cavity, an indicator 309 is formed. A frosted light-transmitting plate 310 is fixedly installed at the top of the indicator 309. A color-changing indicator is coated on the surface of the frosted light-transmitting plate 310. A lighting module 307 is detachably installed in the sight glass housing 301. A spherical block 311 is formed at the center of the surface of the frosted light-transmitting plate 310. And a light-shielding assembly 4 is rotatably installed at the top of the frosted light-transmitting plate 310. The light-shielding assembly 4 includes a socket ring 401 rotatably sleeved outside the spherical block 311. A semi-circular light-shielding plate 402 for shielding the frosted light-transmitting plate 310 is formed on the outer edge surface of the socket ring 401. At both sides of the upper end surface of the semi-circular light-shielding plate 402, sector-shaped blocks 403 extending upward at different angles are formed by deflecting from the central position. A curved surface positioning groove 404 adapted to fit the surface of the spherical block 311 to achieve a positioning effect is formed at the connection position between the sector-shaped block 403 and the socket ring 401.

[0024] In an embodiment of the present utility model, an installation groove is formed by extending inward from the bottom of the sight glass housing 301 towards the inside of the indicator 309. The lighting module 307 is detachably arranged in the installation groove. A sealing cap 304 is detachably and hermetically installed at the top of the sight glass housing 301. A transparent glass plate 305 is fixedly arranged inside the sealing cap 304. A lamp board for emitting white light is arranged at the top of the lighting module 307. And the bottom end of the lighting module 307 extends out of the installation groove and is fixedly connected with a mounting seat 306. The mounting seat 306 is detachably connected with the lower end surface of the sight glass housing 301. And a power-on wire 308 extending into the lighting module 307 and used for supplying power to the lamp board is arranged at the bottom of the mounting seat 306.

[0025] In an embodiment of the present utility model, conveying pipes 302 communicating with the inside of the sight glass cavity are symmetrically formed on the outer edge surface of the sight glass housing 301. One end of the conveying pipe 302 away from the sight glass housing 301 is connected with a pipe joint 303. A refrigerant pipeline 2 is detachably installed between the valve body 1 and the sight glass assembly 3. Both ends of the refrigerant pipeline 2 are in threaded fit connection with the pipe joint 303 and the valve body 1 respectively.

[0026] Working principle: This embodiment provides a valve assembly with a sight glass. When in use, first connect the sight glass assembly 3 to the valve body 1 through the refrigerant pipeline 2, and connect the valve body 1 and the sight glass assembly 3 to the refrigerant system. The lamp board in the lighting module 307 provides backlight for the frosted light-transmitting plate 310, making the color-changing indicator on the surface of the frosted light-transmitting plate 310 more prominent. And when the refrigerant in the system passes through, the refrigerant will drive the semi-circular light-shielding plate 402 to deflect randomly, so that the semi-circular light-shielding plate 402 forms an irregular light-shielding effect on the surface of the frosted light-transmitting plate 310, so that the light appears on the transparent glass plate 305 after refraction and scattering by the refrigerant. The deflection of the semi-circular light-shielding plate 402 is conducive to achieving the effect of random flickering, which is conducive to timely observation and judgment from a distance during daily inspections. By forming fan-shaped blocks 403 with different angles of upward deflection and extension from the center position on both sides of the upper end surface of the semi-circular light-shielding plate 402, since the deflection and extension angles of the fan-shaped blocks 403 are different, the contact area between them and the refrigerant is also different when the refrigerant flows through, thus improving the random deflection effect of the semi-circular light-shielding plate 402. At the same time, by forming a curved surface positioning groove 404 at the connection position between the fan-shaped block 403 and the socket ring 401, which is adapted to fit the surface of the spherical block 311, the contact between the curved surface positioning groove 404 and the spherical block 311 is conducive to improving the stability of the semi-circular light-shielding plate 402 during random deflection.

[0027] The embodiments disclosed in this utility model are preferred embodiments, but not limited thereto. Those of ordinary skill in the art can easily understand the spirit of this utility model based on the above embodiments and make different extensions and changes. However, as long as they do not depart from the spirit of this utility model, they are within the protection scope of this utility model.

Claims

1. A valve assembly with a sight glass, characterized in that, A valve body (1) with a liquid sight glass assembly (3) detachably installed at one end; The liquid sight glass assembly (3) includes a liquid sight glass housing (301) with a liquid sight cavity formed therein. At the center of the bottom of the liquid sight cavity, an indicator (309) is formed. A frosted light-transmitting plate (310) is fixedly installed on the top of the indicator (309). A color-changing indicator is coated on the surface of the frosted light-transmitting plate (310). A lighting module (307) is detachably installed in the liquid sight glass housing (301). A spherical block (311) is formed at the center of the surface of the frosted light-transmitting plate (310), and a light-shielding assembly (4) is rotatably installed on the top of the frosted light-transmitting plate (310); The light-shielding assembly (4) includes a socket ring (401) rotatably sleeved outside the spherical block (311). On the outer edge surface of the socket ring (401), a semi-circular light-shielding plate (402) for shielding the frosted light-transmitting plate (310) is formed. On both sides of the upper end surface of the semi-circular light-shielding plate (402), sector blocks (403) extending upward at different angles with the center position are formed. At the connection position between the sector blocks (403) and the socket ring (401), a curved surface positioning groove (404) adapted to fit the surface of the spherical block (311) to achieve a positioning effect is formed.

2. The valve assembly with a liquid sight glass according to claim 1, characterized in that, An installation groove is formed by extending inward from the bottom of the liquid sight glass housing (301) towards the indicator (309). The lighting module (307) is detachably arranged in the installation groove. A sealing cap (304) is detachably and hermetically installed on the top of the liquid sight glass housing (301), and a transparent glass plate (305) is fixedly arranged in the sealing cap (304).

3. A valve assembly with a liquid sight glass according to claim 2, characterized in that, A lamp board for emitting white light is arranged on the top of the lighting module (307), and the bottom end of the lighting module (307) extends out of the installation groove and is fixedly connected with a mounting seat (306).

4. The valve assembly with a sight glass according to claim 3, characterized in that, The mounting seat (306) is detachably connected to the lower end surface of the liquid sight glass housing (301), and a power-on wire (308) extending into the lighting module (307) and used for supplying power to the lamp board is arranged at the bottom of the mounting seat (306).

5. The valve assembly with a sight glass according to claim 1, characterized in that, On the outer edge surface of the liquid sight glass housing (301), a delivery pipe (302) connected to the inside of the liquid sight cavity is symmetrically formed. One end of the delivery pipe (302) far from the liquid sight glass housing (301) is connected with a pipe joint (303).

6. The valve assembly with a sight glass according to claim 5, characterized in that, A refrigerant pipeline (2) is detachably installed between the valve body (1) and the liquid sight glass assembly (3), and both ends of the refrigerant pipeline (2) are in threaded fit connection with the pipe joint (303) and the valve body (1) respectively.

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