Check valve with weight balancing device and air conditioning system comprising check valve

Abstract

The utility model discloses a check valve with a weight balancing device and an air conditioning system comprising the check valve. The check valve comprises a valve body; the multiple air blocking pieces are arranged in the valve body at equal intervals, and the two ends of each air blocking piece are rotationally connected with the valve body; the connecting rod is hinged to all the air blocking pieces, and movement of the connecting rod can drive all the air blocking pieces to turn over; the pulley assembly comprises a first fixed pulley and a rope, the first fixed pulley is fixedly installed on the valve body, the rope is wound around the first fixed pulley, and the first end of the rope is connected with the connecting rod; the counterweight is connected with the second end of the rope, and the counterweight is suspended in the air; the counter weight can overcome part of gravity of the air blocking pieces and the connecting rods, so that the air blocking pieces are driven by the draught fan to be opened more easily. According to the check valve, the connecting rods connected with the air blocking pieces are connected with the counter weight through the rope, the counter weight can offset part of the gravity of the air blocking pieces and the connecting rods through the first fixed pulley, and therefore the draught fan can blow away the air blocking pieces conveniently, and opening of the check valve is completed smoothly.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of valve body, in particular to a check valve with weight balance device and an air conditioning system comprising the same. BACKGROUND

[0002] The check valve is a valve body that limits the direction of fluid flow, which is widely used in various devices and mechanical structures. Most of the check valves used in air conditioners now rely on the wind power of the fan to push the wind baffle of the check valve open to perform air supply. Although the purpose of air supply can be achieved, the wind baffle will vibrate due to the interaction of its own gravity and the thrust generated by the fan during the operation of the air conditioning unit. The vibration of the wind baffle will resonate with the vibration of other parts of the air conditioning unit, thus producing more noise, which adversely affects the operation of the air conditioning unit.

[0003] Therefore, on this basis, the use of connecting rods to hinge each wind baffle together makes all the wind baffles of the check valve connected as a whole. During the operation of the air conditioning unit, all the wind baffles will perform unified opening and closing movement, thereby reducing the generation of vibration and noise. However, the problem that follows is that this check valve is generally made of metal material, thereby obtaining high structural strength, but this also makes the wind baffle itself heavier. Moreover, due to the increase in the weight of the connecting rods on the wind baffles of the check valve, the fan needs to operate with greater power to generate enough thrust to push the wind baffles of the check valve open for air supply, which increases the energy consumption of the air conditioner.

[0004] Therefore, a new type of check valve is needed, which can reduce the influence of the self-weight of the wind baffle on the normal opening and closing of the check valve, and ensure that the wind power generated by the fan can push the wind baffle open to complete the opening of the check valve. SUMMARY

[0005] The present application aims to at least solve one of the technical problems existing in the prior art, and provides a check valve with weight balance device and an air conditioning system comprising the same, which can reduce the energy consumption of the fan and make it easier for the fan to push the wind baffles in the check valve open to open the check valve.

[0006] According to the first aspect of the present application, a check valve with weight balance device is provided, comprising:

[0007] a valve body;

[0008] a plurality of wind baffles, which are equidistantly arranged in the valve body, and both ends of each wind baffle are rotationally connected with the valve body;

[0009] a connecting rod, which is hinged with each wind baffle, and the movement of the connecting rod can drive each wind baffle to flip;

[0010] A pulley assembly comprises a first fixed pulley and a rope, the first fixed pulley is fixedly installed on the valve body, the rope is wound around the first fixed pulley, and a first end of the rope is connected with the connecting rod.

[0011] A counterweight is connected with a second end of the rope, and the counterweight is suspended in the air.

[0012] The counterweight can overcome part of the gravity of the wind deflector and the connecting rod, so that each wind deflector is more easily opened under the driving of the fan.

[0013] According to the first aspect of the present application, further, the wind deflector extends outwardly with a connecting piece, and the connecting rod is hinged with the connecting piece.

[0014] According to the first aspect of the present application, further, the top surface and the bottom surface of the wind deflector are both inclined surfaces, and two adjacent wind deflectors can be spliced with each other through the inclined surfaces.

[0015] According to the first aspect of the present application, further, the top surface and the bottom surface of the wind deflector are both provided with buckling pieces, and two adjacent wind deflectors can be buckled with each other through the buckling pieces.

[0016] According to the first aspect of the present application, further, the pulley assembly further comprises a second fixed pulley, the second fixed pulley is fixedly installed on the valve body, and the rope is wound around the first fixed pulley and the second fixed pulley.

[0017] According to the first aspect of the present application, further, the check valve with weight balancing device further comprises a guide rail, the guide rail is fixedly installed on the valve body and extends along the movement direction of the counterweight, and the counterweight is slidingly connected with the guide rail.

[0018] According to the first aspect of the present application, further, the side surface of the counterweight extends outwardly with a limiting piece, a sliding groove extending along the movement direction of the counterweight is formed in the guide rail, and the limiting piece slides in the sliding groove to limit the sliding direction of the counterweight.

[0019] According to the first aspect of the present application, further, the counterweight is detachably connected with the rope.

[0020] According to the first aspect of the present application, further, a first hook is installed on the top of the counterweight, a second hook is installed on the second end of the rope, and the first hook and the second hook are hung with each other.

[0021] According to the second aspect of the present application, an air conditioning system is provided, comprising a fan and the check valve with the weight balancing device, the fan is connected with the valve body, and the airflow generated by the fan can impact each of the wind baffles.

[0022] The beneficial effects of the embodiments of the present application at least include: the present application connects the connecting rod connecting each wind baffle with the counterweight through the rope, and the counterweight can offset part of the gravity of the wind baffle and the connecting rod through the first fixed pulley, so that the fan can blow open each wind baffle, and the opening of the check valve is successfully completed. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly described below. Obviously, the described drawings are only part of the embodiments of the present application, not all embodiments, and those skilled in the art can obtain other design schemes and drawings according to these drawings without creative labor.

[0024] Figure 1 is the front view of the check valve with the weight balancing device according to the first aspect of the present application;

[0025] Figure 2 is the schematic diagram of the opening of the wind baffle 200 in the check valve with the weight balancing device according to the first aspect of the present application;

[0026] Figure 3 is Figure 2 is the local enlarged view of A in FIG.

[0027] Reference signs: 100-valve body, 200-wind baffle, 210-connector, 220-buckling piece, 300-connecting rod, 400-pulley assembly, 410-first fixed pulley, 420-second fixed pulley, 430-rope, 500-counterweight, 510-limiting piece, 600-guide rail. DETAILED DESCRIPTION

[0028] This part will describe the specific embodiments of the present application in detail, the preferred embodiments of the present application are shown in the drawings, the role of the drawings is to supplement the description of the text part with figures, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the present application, but it cannot be understood as a limitation on the protection scope of the present application.

[0029] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application.

[0030] In the description of the present application, the meaning of one or more is one or more, the meaning of multiple is more than two, greater than, less than, more than, etc. are understood as not including the number, above, below, within, etc. are understood as including the number. If it is described to the first, the second is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0031] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installation, connection, etc. should be broadly understood, and those skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0032] The check valve is a valve body that limits the flow direction of fluid and is widely used in various devices and mechanical structures. Most of the check valves used in air conditioners now rely on the wind power of the fan to push the wind baffle of the check valve open to perform air supply. Although the purpose of air supply can be achieved, the problem that follows is that such check valves are generally made of metal material, the wind baffle itself is relatively heavy, and because the weight of the connecting rod is added to the wind baffle of the check valve, the wind baffle will vibrate due to the interaction of its own gravity and the thrust generated by the fan during the operation of the air conditioning unit. The vibration of the wind baffle will resonate with the vibration of other parts of the air conditioning unit, thus producing more noise, which adversely affects the operation of the air conditioning unit.

[0033] Therefore, on this basis, the connecting rod is used to hinge each wind baffle together, so that all the wind baffles of the check valve are connected as a whole. During the operation of the air conditioning unit, all the wind baffles will perform unified opening and closing movement, thereby reducing the generation of vibration and noise. However, the problem that follows is that such check valves are generally made of metal material, thereby obtaining high structural strength, but this also makes the wind baffle itself relatively heavy. Moreover, because the weight of the connecting rod is added to the wind baffle of the check valve, the fan needs to operate with greater power to generate sufficient thrust to push the wind baffles of the check valve open for air supply, which increases the energy consumption of the air conditioner.

[0034] Therefore, a new type of check valve is needed, which can reduce the influence of the self-weight of the wind baffle on the normal opening and closing of the check valve, and ensure that the wind power generated by the fan can push the wind baffle open to complete the opening of the check valve.

[0035] In this regard, the present application proposes a check valve with a weight balancing device and an air-conditioning system including the same. The connecting rod 300 connecting each windshield 200 is connected to the counterweight 500 through a rope 430. The counterweight 500 is able to offset part of the gravity of the windshield 200 and the connecting rod 300 through the first fixed pulley 410, thereby facilitating the fan to blow open each windshield 200 and successfully complete the opening of the check valve.

[0036] Reference Figure 1 The check valve with a weight balancing device in the embodiment of the first aspect of the present application includes a valve body 100, a windshield 200, a connecting rod 300, a pulley assembly 400 and a counterweight 500. Among them, the valve body 100 is the main structure of the check valve with a weight balancing device, and the other components in the check valve with a weight balancing device are connected to the valve body 100 and supported and protected by it. The windshield 200 is used to control the opening or closing of the valve body 100, and the airflow can pass through the valve body 100 to circulate after the windshield 200 is opened. The connecting rod 300 is used to connect the various windshields 200 to maintain the uniform movement of the various windshields 200, thereby preventing individual windshields 200 from shaking due to the influence of the airflow and generating noise. The pulley assembly 400 is used to connect the connecting rod 300 with the counterweight 500, and offset part of the weight of the connecting rod 300 and the wind shield 200 through the counterweight 500, so that after the fan is started, the airflow can more easily push the wind shield 200 open to complete the opening of the check valve.

[0037] Specifically, the valve body 100 and the windshield 200 are both made of sheet metal, and the valve body 100 is welded from multiple pieces of sheet metal. There are multiple windshields 200 that are evenly spaced in the valve body 100. Both ends of the windshield 200 are rotatably connected to the valve body 100, so that when airflow is generated from the fan and hits the windshield 200, Figure 2 The airflow pushes the windshields 200 open and rotates them, allowing air to flow out through the gaps between them. When the fan is turned off, the windshields 200 rotate in the opposite direction due to their own gravity and return to their initial state. When external airflow rushes inward, the abutment between the windshields 200 prevents the airflow from entering, thus achieving the one-way opening function of the valve body. The one-way valve body is conventional, and its specific structure and operating principle will not be detailed here.

[0038] The connecting rod 300 is hinged to each windshield 200. The movement of the connecting rod 300 can drive each windshield 200 to flip, so as to keep the movement posture of each windshield 200 consistent and synchronized, avoid individual windshields 200 shaking and generating noise, and ensure that the opening and closing angles of each windshield 200 are consistent to ensure smooth airflow.

[0039] The pulley assembly 400 comprises a first fixed pulley 410 and a rope 430. The first fixed pulley 410 is fixedly installed on the valve body 100, the rope 430 is wound around the first fixed pulley 410, the first end of the rope 430 is connected with the connecting rod 300, and the second end of the rope 430 is connected with the counterweight 500 and suspends the counterweight 500 in the air. Thus, the weight of the counterweight 500 can offset part of the weight of the connecting rod 300 and the wind deflector 200 through the pulley assembly 400, and when the fan is started and airflow impacts each wind deflector 200, the wind deflector 200 is more easily pushed open to enable airflow to flow outwards from the valve body 100, and the opening of the check valve is smoothly completed.

[0040] Further, the rope 430 is specifically a steel wire rope, so that it can withstand a large pulling force without breaking.

[0041] Further, with reference to Figure 3 , the wind deflector 200 extends outwardly with a connecting piece 210, and the connecting rod 300 is hinged with the connecting piece 210. Through the connecting piece 210 extending outwardly, the force arm of the connecting rod 300 and the wind deflector 200 is lengthened, so that when the connecting rod 300 drives each wind deflector 200 to overturn, the required acting force of the connecting rod 300 can be reduced, and the wind deflector 200 is more easily opened.

[0042] Further, the top surface and the bottom surface of the wind deflector 200 are both inclined surfaces, and two adjacent wind deflectors 200 can be spliced with each other through the inclined surfaces. Thus, the rotation direction of the wind deflector 200 can be limited, and the splicing gap between two adjacent wind deflectors 200 can be reduced, the probability of airflow flowing through the gap between two wind deflectors 200 can be reduced, and the sealing performance is improved.

[0043] Further, the top surface and the bottom surface of the wind deflector 200 are both provided with a buckling piece 220, and two adjacent wind deflectors 200 can be buckled with each other through the buckling pieces 220. Thus, the gap between two adjacent wind deflectors 200 can be further reduced, and the sealing performance of the check valve of the weight balancing device is improved.

[0044] Further, the pulley assembly 400 further comprises a second fixed pulley 420. The second fixed pulley 420 is fixedly installed on the valve body 100, and the rope 430 is wound around the first fixed pulley 410 and the second fixed pulley 420. The arrangement of the second fixed pulley 420 can increase the horizontal distance between the counterweight 500 and the connecting rod 300, so that the position of the counterweight 500 is more free. Moreover, the counterweight 500 is arranged on one side of the air outlet of the valve body 100, so that the airflow disturbance to the counterweight 500 can be reduced, the risk of the counterweight 500 being shaken violently under the airflow disturbance can be reduced, and the situation that the counterweight 500 knocks the wind deflector 200 or the valve body 100 due to shaking can be avoided.

[0045] Further, the check valve of the belt weight balancing device further comprises a guide rail 600 fixedly installed on the valve body 100 and extending along the movement direction of the counterweight 500, and the counterweight 500 is in sliding connection with the guide rail 600. Thus, the movement direction of the counterweight 500 can be defined through the guide rail 600, the risk of shaking of the counterweight 500 due to the air flow is reduced, and the situation that the counterweight 500 knocks the wind deflector 200 or the valve body 100 due to the shaking is avoided.

[0046] Further, the side surface of the counterweight 500 extends outwardly to a limiting piece 510, and a sliding groove extending along the movement direction of the counterweight 500 is formed in the guide rail 600, and the limiting piece 510 slides in the sliding groove to limit the sliding direction of the counterweight 500. Moreover, the end portion of the sliding groove can be blocked by an object to prevent the limiting piece 510 from being taken out of the sliding groove, which on one hand can prevent the counterweight 500 from being taken out of the guide rail 600, and on the other hand limits the movement stroke of the counterweight 500, thereby limiting the maximum opening angle of each wind deflector 200 when being opened.

[0047] Further, the counterweight 500 is detachably connected with the rope 430, so that different weights of the counterweight 500 can be replaced according to the weight of the wind deflector 200 and the connecting rod 300 to adapt to different use conditions. As for the detachable connection manner of the counterweight 500 and the rope 430, a bolt can be bound at the end portion of the rope 430 to be connected with the counterweight 500 through the bolt, or the rope 430 and the counterweight 500 are bound to be connected. In the embodiment, the counterweight 500 and the rope 430 are connected through hooks. Specifically, a first hook is installed on the top of the counterweight 500, and a second hook is installed on the second end of the rope 430, and the first hook and the second hook are hung with each other. When the counterweight 500 needs to be replaced, the first hook is loosened from the second hook to take down the counterweight 500, and then another counterweight 500 is hung to be connected.

[0048] The air conditioning system in the second embodiment of the application comprises a fan and the check valve with the belt weight balancing device, the fan is connected with the valve body 100, and the air flow generated by the fan can impact each wind deflector 200 to open the check valve by using the wind power.

[0049] The above is a specific description of the preferred embodiments of the application, but the application is not limited to the described embodiments, and those skilled in the art can make various equivalent modifications or replacements without departing from the spirit of the application, and these equivalent modifications or replacements are all included in the scope defined by the claims of the application.

Claims

1. A check valve with a weight balancing device, characterized in that: include: Valve body; A plurality of windshields are arranged equidistantly in the valve body, and both ends of the windshields are rotatably connected to the valve body; A connecting rod, the connecting rod being hinged to each of the windshields, and the movement of the connecting rod can drive each of the windshields to flip; a pulley assembly, the pulley assembly comprising a first fixed pulley and a rope, the first fixed pulley being fixedly mounted on the valve body, the rope being wound around the first fixed pulley, and a first end of the rope being connected to the connecting rod; a counterweight connected to the second end of the rope, the counterweight being suspended in the air; The counterweight can overcome part of the gravity of the windshields and the connecting rods, so that each windshield is easier to open when driven by the fan.

2. The check valve with a weight balancing device according to claim 1, characterized in that: A connecting piece is extended outward from the windshield, and the connecting rod is hinged to the connecting piece.

3. The check valve with a weight balancing device according to claim 1, characterized in that: The top surface and the bottom surface of the wind shield are both inclined surfaces, and two adjacent wind shields can be spliced ​​together through the inclined surfaces.

4. The check valve with a weight balancing device according to claim 3, characterized in that: The top surface and the bottom surface of the wind shield are both provided with fastening parts, and two adjacent wind shields can be fastened to each other through the fastening parts.

5. The check valve with a weight balancing device according to claim 1, characterized in that: The pulley assembly further includes a second fixed pulley, which is fixedly mounted on the valve body, and the rope is wound around the first fixed pulley and the second fixed pulley.

6. The check valve with a weight balancing device according to claim 1, characterized in that: The check valve with a weight balancing device further comprises a guide rail, which is fixedly mounted on the valve body and extends along the movement direction of the counterweight, and the counterweight is slidably connected to the guide rail.

7. The check valve with a weight balancing device according to claim 6, characterized in that: A limiting member extends outward from a side surface of the counterweight, and a sliding groove extending along the movement direction of the counterweight is opened in the guide rail. The limiting member slides in the sliding groove to limit the sliding direction of the counterweight.

8. The check valve with a weight balancing device according to claim 1, characterized in that: The counterweight is detachably connected to the rope.

9. The check valve with a weight balancing device according to claim 8, characterized in that: A first hook is installed on the top of the counterweight, and a second hook is installed on the second end of the rope, and the first hook and the second hook are connected to each other.

10. An air conditioning system, characterized in that: It comprises a blower and a check valve with a weight balancing device as claimed in any one of claims 1 to 9, wherein the blower is connected to the valve body, and the airflow generated by the blower can impact each of the windshields.

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