CN220268752U

CN220268752U - Valve assembly at water inlet and return end of fan coil

Info

Publication number: CN220268752U
Application number: CN202321803250.XU
Authority: CN
Inventors: 汤冬冬; 朱新炎; 赵奇元; 赵敏
Original assignee: Zhejiang Deai Intelligent Control Technology Co ltd
Current assignee: Zhejiang Deai Intelligent Control Technology Co ltd
Priority date: 2023-07-10
Filing date: 2023-07-10
Publication date: 2023-12-29
Anticipated expiration: 2033-07-10

Abstract

The utility model belongs to the technical field of valve equipment, and discloses a valve assembly of a water inlet end and a water return end of a fan coil, which comprises a filter valve, a cut-off valve and a regulating valve, wherein the filter valve is in sealing connection with the water inlet end of the fan coil, and the cut-off valve and the regulating valve are in sealing connection with the water return end of the fan coil in sequence, wherein: the stop valve and the regulating valve are connected through a first loose joint structure, and the stop valve and the regulating valve can rotate around the circumferential direction of the first loose joint structure for any angle and are fixed. The valve assembly can flexibly adjust the installation angle of the valve after being assembled and installed, and is convenient for subsequent maintenance.

Description

Valve assembly at water inlet and return end of fan coil

Technical Field

The utility model belongs to the technical field of valve equipment, and particularly relates to a valve assembly at an inlet end and a return end of a fan coil.

Background

The existing fan coil water inlet end consists of a gate valve, a filter and a corrugated pipe, the water return end consists of the gate valve, an electric regulating valve and the corrugated pipe, and each valve is not rotatably regulated after installation is completed, so that the installation position is limited, the subsequent maintenance operation is influenced, an external pipe fitting and the valve are twisted by threads after being wound by a raw material belt, hemp threads or anaerobic adhesive, the hemp threads are excessively wound to cause damage to the threaded connection part of the valve, and the joint part is possibly cracked along with long-time stress release, so that the service life of the valve connection structure is influenced; the filter and the gate valve are sequentially arranged at the water inlet end of the fan coil, and the water source is required to be shut off and detached when the filter needs to be cleaned, so that online cleaning cannot be realized, and later maintenance is troublesome. For example, in patent document CN1236239C, an automatic exhaust valve, an electric valve and a bellows at a water outlet end are all fixedly connected by an integral casting method, a water filter and a manual valve at a water inlet end are also welded to the bellows after integral casting, and once the valve is installed, the valve position cannot be arbitrarily replaced and adjusted, and maintenance and repair are difficult.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide a fan coil water inlet and return end valve assembly, which mainly solves the problem that the installation position of an existing fan coil water inlet and return end valve assembly cannot be flexibly adjusted.

In order to achieve the above purpose, the utility model provides a fan coil water inlet and return end valve assembly, comprising a filter valve hermetically connected with a fan coil water inlet end, and a cut-off valve and a regulating valve sequentially hermetically connected with the fan coil water return end, wherein: the stop valve is connected with the regulating valve through a first loose joint structure, and the stop valve and the regulating valve can rotate around the circumferential direction of the first loose joint structure for any angle and are fixed.

Further, the other end of the regulating valve is provided with a first corrugated pipe, one end of the first corrugated pipe is provided with a second loose joint structure, the second loose joint structure is in sealing connection with the regulating valve, and the other end of the first corrugated pipe is connected with a second external pipeline.

Further, a first loose joint component is arranged at the other end of the first corrugated pipe, and the first loose joint component is sleeved and connected with the second external pipeline.

Further, the first loose-joint assembly comprises a third loose-joint structure and a first self-sealing connecting pipe, wherein the end parts of the third loose-joint structure are connected in a sealing mode, and the second external pipeline is sleeved and connected with the first self-sealing connecting pipe.

Further, a first round platform gasket is arranged outside the other end of the first corrugated pipe, the second external pipeline is sleeved outside the other end of the first corrugated pipe, and the inner side wall of the second external pipeline is in sealing connection with the first round platform gasket; the small diameter end of the first circular truncated cone gasket faces the second external pipe.

Further, one end of the filter valve is provided with a second corrugated pipe, one end of the second corrugated pipe is in sealing connection with the filter valve, and the other end of the second corrugated pipe is in sealing connection with one end of the first external pipeline.

Further, a second loose joint component is arranged at the other end of the second corrugated pipe, and the second loose joint component is sleeved and connected with the first external pipeline.

Further, the second loose-joint assembly comprises a fourth loose-joint structure and a second self-sealing connecting pipe which are in end sealing connection, and the second self-sealing connecting pipe is sleeved and connected with the first external pipeline.

Furthermore, a second round platform gasket is arranged outside the other end of the second corrugated pipe, the first external pipeline is sleeved outside the second round platform gasket, the inner side wall of the first external pipeline is in sealing connection with the second round platform gasket, and the small-diameter end of the second round platform gasket faces the first external pipeline.

Further, the filter valve is in sealing connection with the water inlet end of the fan coil through a fifth loose joint structure.

Compared with the prior art, the technical scheme of the utility model mainly has the following advantages:

1. according to the utility model, the cut-off valve and the regulating valve arranged at the water inlet end of the fan coil are connected through the first loose joint structure, and when the valves are assembled and installed, the cut-off valve and the regulating valve can rotate around the circumferential direction of the first loose joint structure for any angle and then are fixedly connected with the first loose joint structure, or any one of the cut-off valve and the regulating valve can rotate around the circumferential direction of the first loose joint structure for any angle and then are fixedly connected with the first loose joint structure, so that the effect of flexibly adjusting the included angle of the valve relative to the horizontal plane is realized, and the subsequent maintenance operation is convenient.

2. According to the utility model, the split structure of the filter at the water inlet end of the fan coil and the gate valve is replaced by a single filter valve, so that the installation space can be saved, the filter valve is connected with the fan coil and the corresponding corrugated pipe by adopting a loose joint structure, the included angle between the filter valve and the horizontal plane can be randomly adjusted during installation, and the installation position can be flexibly adjusted.

Drawings

FIG. 1 is a schematic diagram of a valve assembly structure at the return end of a fan coil according to embodiment 1 of the present utility model;

fig. 2 is a schematic diagram of a fan coil water inlet valve assembly structure provided in embodiment 2 of the present utility model.

In the figure: 1-stop valve, 2-governing valve, 21-first loose joint structure, 211-first seal structure, 3-first bellows, 31-second loose joint structure, 32-third loose joint structure, 33-first self-sealing connecting pipe, 331-first round platform packing ring, 4-filter valve, 41-drain, 5-first bellows, 51-fourth loose joint structure, 52-second self-sealing connecting pipe, 521-second round platform packing ring.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like indicate orientations or positional relationships that are shown based on the drawings, merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Example 1

As shown in fig. 1, for the schematic diagram of a valve assembly structure of a return water end of a fan coil provided in this embodiment, the valve assembly includes a filter valve 4 and a first external pipeline which are sequentially connected with a water inlet end of the fan coil in a sealing manner, and a shut-off valve 1, a regulating valve 2 and a second external pipeline which are sequentially connected with the return water end of the fan coil in a sealing manner, wherein: the cut-off valve 1 and the regulating valve 2 are connected through the first loose joint structure 21, and the cut-off valve 1 and/or the regulating valve 2 can rotate around the circumferential direction of the first loose joint structure 21 by any angle and then are screwed and fixed with the first loose joint structure 21.

Specifically, the first loose-joint structure 21 in this embodiment is a socket loose-joint (hereinafter referred to as loose-joint), that is, one end of the loose-joint, which is connected to the stop valve 1, is provided with an internal thread, the other end of the loose-joint, which is connected to the regulating valve 2, is a socket without threads, and the regulating valve 2 and the socket can be welded and fixed after being inserted; one end of the stop valve 1 is connected with the female joint union in a threaded fit way, the other end of the stop valve is connected with the water outlet end of the fan coil pipe through a union nut, and when the valve is not screwed down and fixed, the central axis of the connecting port of the stop valve can rotate to form any included angle with the horizontal plane within the range of 360 degrees by taking the central axis of the connecting port as the rotation center, and then the stop valve is screwed down and fixed by the union.

The first loose-joint structure 21 may be a receiving loose-joint with internal threads at both ends, one end of the stop valve 1 is provided with external threads matched with the first loose-joint structure 21, and one end of the regulating valve 2 is also provided with external threads matched with the first loose-joint structure 21; the stop valve 1 is installed at the water outlet end of the fan coil through a loose-joint nut, the first loose-joint structure 21, the stop valve 1 and the regulating valve 2 are not screwed and fastened, the stop valve 1 and the regulating valve 2 can rotate around the central axis of a connecting port of the stop valve 1 and the regulating valve 2 within a range of 360 degrees to adjust the fixed position, after the stop valve is adjusted to a proper fixed position, the first loose-joint structure 21 is screwed, the installation mode is more flexible, and the included angle between each valve and the horizontal plane can be adjusted randomly.

Optionally, a first sealing structure 211 is arranged between one end of the first loose-joint structure 21 and one end of the regulating valve 2; specifically, the first sealing structure 211 is a sealing gasket embedded on an outer surface of one end of the regulator valve 2, and the sealing gasket protrudes from an outer surface of one end of the regulator valve 2.

Optionally, a first corrugated pipe 3 is arranged between the other end of the regulating valve 2 and a second external pipeline, one end of the first corrugated pipe 3 is provided with a second loose joint structure 31, the second loose joint structure 31 is a loose joint nut fixed on the first corrugated pipe 3 in a clamping or screwing mode and the like, and the second loose joint structure 31 is in sealing connection with the other end of the regulating valve 2 in a screwing mode; specifically, the first corrugated pipe 3 is a corrugated hose with a telescopic length, and can play a role in vibration reduction and noise reduction, and the other end of the first corrugated pipe is in sealing connection with the second external pipeline.

Optionally, a first loose joint component is arranged at the other end of the first corrugated pipe 3, and the first loose joint component is sleeved and connected with a second external pipeline; specifically, when the inner diameter of the first loose-joint assembly is smaller than that of the second external pipeline, the second external pipeline is sleeved outside the first loose-joint assembly, the first loose-joint assembly and the second loose-joint assembly are tightly and hermetically connected, and otherwise, the first loose-joint assembly is sleeved outside the second external pipeline.

Optionally, the first loose-joint assembly includes a third loose-joint structure 32 and a first self-sealing connecting pipe 33, where the ends of the third loose-joint structure are connected in a sealed manner, and the second external pipeline is sleeved with the first self-sealing connecting pipe 33 in a sealed manner; specifically, the third loose-joint structure 32 is a loose-joint nut with one end clamped or screwed on the first corrugated tube 3, the loose-joint nut and the first self-sealing connecting tube 33 are screwed together, and a sealing gasket is arranged between the loose-joint nut and the first self-sealing connecting tube, so that sealing connection can be realized.

Optionally, a first circular truncated cone gasket 331 is arranged on the outer side of the first loose joint component, the second external pipeline is sleeved outside the first loose joint component, and the inner side wall of the second external pipeline is tightly attached to the first circular truncated cone gasket 331 to realize sealing connection; specifically, the cross section of the first circular truncated cone gasket 331 along the perpendicular plane where the central axis is located is trapezoidal, and the inclined plane of the trapezoid (i.e. the small diameter end of the first circular truncated cone gasket 331) faces the end face of the second external pipe, so that the second external pipe can be easily sleeved outside the first loose joint assembly and tightly attached and sealed.

Because the hemp thread is wound too much on the threaded connection part of the valve, the valve or the filter can be rotated at a limited angle after the installation is completed, the installation position is limited, and the subsequent maintenance operation is influenced.

Optionally, a second bellows 5 is arranged between the filter valve 4 and the first external pipeline, one end of the second bellows 5 is also provided with a loose joint nut, the loose joint nut is in threaded connection with one end of the filter valve 4, a second sealing structure is arranged between the loose joint nut and the filter valve 4 for sealing, and the second sealing structure can be a sealing element such as a rubber gasket; the other end of the second corrugated pipe 5 is provided with a second loose joint component, and the second loose joint component is sleeved and connected with the first external pipeline.

Optionally, the second loose-joint assembly comprises a fourth loose-joint structure 51 and a second self-sealing connecting pipe 52 which are connected with each other in a sealing way, and the second self-sealing connecting pipe 52 is sleeved with the first external pipeline; specifically, the fourth loose-joint structure 51 is a loose-joint nut fixed on the second bellows 5 by a fastening or screwing connection manner, and is fixedly connected with the second self-sealing connecting pipe 52 by a screwing manner.

Optionally, a second circular truncated cone gasket 521 is disposed at the outer side of the second loose-joint assembly, the first external pipe is sleeved outside the second circular truncated cone gasket 521, and the inner side wall of the first external pipe is connected with the second circular truncated cone gasket 521 in a sealing manner; specifically, the second circular truncated cone gasket 521 has the same structure as the first circular truncated cone gasket 331, and its inclined surface faces the end surface of the external connection pipe after installation.

Optionally, the filter valve 4 is hermetically connected with the water inlet end of the fan coil through a fifth loose joint structure, and the fifth loose joint structure is the same as or different from the four loose joint structures, so that the filter valve 4 can rotate relative to the water inlet end of the fan coil to form any included angle with the horizontal plane.

In other more preferred embodiments, the filter valve 4 is provided with a filter screen structure capable of being cleaned on line, specifically, the filter valve 4 is provided with a drain outlet 41, the drain outlet 41 can be mutually communicated with an inlet and an outlet of the filter valve, the end part of the drain outlet 41 is provided with a detachable drain end cover, and a valve ball in the filter valve 4 can close the inlet or the outlet; after the water flow is turned off, the sewage end cover is opened, and the filter screen in the filter valve 4 can be taken out from the sewage outlet 41 for cleaning without disassembling the whole filter valve.

The working principle of the fan coil inlet and return water end valve combination in the foregoing embodiment is as follows: the air-conditioning inlet water enters the filter valve 4 through the second corrugated pipe 5, the filtered air-conditioning inlet water enters the fan coil again to participate in heat exchange, and the air-conditioning outlet water after completing the heat exchange returns to the circulation system through the stop valve 1, the regulating valve 2 and the first corrugated pipe 3. In the circulation process, the cut-off valve 1 can cut off water flow, the regulating valve 2 can regulate the water yield, and the filter valve 4 integrates the functions of filtering and cutting off and can save installation space.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. The utility model provides a return water end valve combination is advanced to fan coil, its characterized in that includes filter valve (4) with fan coil water inlet end sealing connection to and stop valve (1) and governing valve (2) with fan coil return water end sealing connection in proper order, wherein: the stop valve (1) and the regulating valve (2) are connected through a first loose joint structure (21), and the stop valve (1) and the regulating valve (2) can rotate around the circumferential direction of the first loose joint structure (21) for any angle and are fixed.

2. A fan coil advances return end valve combination according to claim 1, characterized in that the other end of governing valve (2) is equipped with first bellows (3), first bellows (3) one end is equipped with second loose joint structure (31), second loose joint structure (31) with governing valve (2) sealing connection, the other end of first bellows (3) is connected with second outside pipeline.

3. A fan coil water inlet and outlet valve assembly according to claim 2, wherein a first loose joint assembly is provided at the other end of the first bellows (3), said first loose joint assembly being connected to the second external conduit.

4. A fan coil water inlet and outlet valve assembly according to claim 3, wherein the first loose-joint assembly comprises a third loose-joint structure (32) and a first self-sealing connecting tube (33) which are connected with each other in a sealing manner, and the second external pipeline is connected with the first self-sealing connecting tube (33) in a sleeved manner.

5. A fan coil water inlet and return end valve assembly according to claim 3, wherein a first circular truncated cone gasket (331) is arranged outside the other end of the first corrugated pipe (3), the second external pipeline is sleeved outside the other end of the first corrugated pipe (3), and the inner side wall of the second external pipeline is in sealing connection with the first circular truncated cone gasket (331); the small diameter end of the first truncated cone gasket (331) faces the second external pipe.

6. A fan coil water inlet and outlet valve assembly according to claim 1, wherein a second bellows (5) is provided at one end of the filter valve (4), one end of the second bellows (5) being in sealing connection with the filter valve (4) and the other end being in sealing connection with one end of the first external conduit.

7. A fan coil water inlet and outlet valve assembly according to claim 6, wherein a second loose-joint assembly is provided at the other end of the second bellows (5), said second loose-joint assembly being connected to the first external conduit.

8. A fan coil water inlet and outlet valve assembly according to claim 7, wherein the second loose-joint assembly comprises a fourth loose-joint structure (51) and a second self-sealing connecting tube (52) which are connected with each other in an end-sealing manner, and the second self-sealing connecting tube (52) is sleeved with the first external pipeline.

9. A fan coil advances return water end valve assembly according to claim 7, wherein the other end outside of second bellows (5) is equipped with second round platform packing ring (521), first outside pipeline cover locate outside second round platform packing ring (521), its inside wall with second round platform packing ring (521) sealing connection, and the minor diameter end of second round platform packing ring (521) is towards first outside pipeline.

10. A fan coil inlet and outlet water end valve assembly according to claim 1, wherein the filter valve (4) is sealingly connected to the fan coil inlet end by a fifth loose-joint arrangement.