Inlet water stepless adjusting device

Abstract

The utility model discloses a water inlet stepless adjusting device which comprises a valve body, a valve cavity is formed in the valve body, and a water inlet end and a water outlet end which are communicated to the valve cavity are formed on the side wall of the valve body. At least part of the valve rod is arranged in the valve cavity in a penetrating mode and can move in the extending direction of the valve cavity, an annular arc-shaped overflowing groove is formed in the periphery of the valve rod, and an overflowing cavity is formed between the overflowing groove and the inner wall of the valve cavity; moreover, in the moving process of the valve rod, the valve rod has a conducting state in which the water inlet end and the water outlet end are respectively communicated with the overflowing cavity, and a cutoff state in which at least one of the water inlet end and the water outlet end is far away from the overflowing cavity; the gap between the opening side of the water inlet end or the water outlet end and the outer wall of the overflowing groove can be gradually enlarged or reduced by moving the valve rod. According to the technical scheme, the function of stepless adjustment of water flow can be achieved, outlet water is gradually increased or decreased, and the situation that the water flow is suddenly large or small is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of liquid flow control devices, and in particular to a stepless water inlet adjustment device. Background Technology

[0002] In ironing equipment or related products, water flow control devices are usually involved to control the on / off state and flow rate of water. Current solutions mainly use a control valve structure, which includes a valve body that forms the valve cavity, a valve rod that passes through the valve cavity, and an inlet and outlet on the side wall of the valve body. The purpose of opening and closing the flow is achieved by moving the valve rod back and forth. The transition between opening and closing the flow is completed instantaneously. That is, in the case of flow interruption, a slight movement of the valve rod can fully open the inlet or outlet and generate a large flow of water. The lack of gradual liquid flow change results in the sudden appearance and amplification of steam on the steam outlet panel of the ironing equipment, which is not a good user experience. Utility Model Content

[0003] In view of the above-mentioned problems in the prior art, a stepless water inlet regulating device is provided, which can realize the function of stepless water flow regulation and avoid the situation of sudden large or small water flow, thereby overcoming at least one of the above-mentioned technical defects.

[0004] The specific technical solution is as follows:

[0005] A stepless water inlet adjustment device, comprising:

[0006] The valve body has an internal valve cavity, and the side wall of the valve body has an inlet end and an outlet end that connect to the valve cavity;

[0007] The valve stem is at least partially inserted into the valve cavity and can move along the extension direction of the valve cavity. An annular arc-shaped flow groove is formed on the outer periphery of the valve stem, and a flow cavity is formed between the flow groove and the inner wall of the valve cavity.

[0008] Furthermore, during the movement of the valve stem, it has a conducting state in which the inlet end and the outlet end are respectively connected through the flow cavity, and a flow interruption state in which at least one of the inlet end and the outlet end is far away from the flow cavity. Within the active range of the conducting state, moving the valve stem can cause the gap between the opening side of the inlet end or the outlet end and the outer wall of the flow channel to gradually expand or shrink.

[0009] Preferably, in cross-sectional view, the outer diameter of the flow channel has a structure that is smaller in the middle and larger at both ends.

[0010] Preferably, the valve stem includes a front part and a rear part that are connected to each other, a flow groove is formed on the front part and annular grooves for embedding a sealing ring are respectively opened on the front and rear sides, and the rear part is formed into a rod shape.

[0011] Preferably, the rear part extends at least partially out of the valve cavity, the front end of the front part is fitted with a spring, and the opposite end of the valve cavity is detachably fitted with a plug. The end of the spring away from the valve stem abuts against the plug to provide a force to the valve stem away from the plug.

[0012] Preferably, the valve body also has a limiting structure for maintaining the position of the valve stem.

[0013] Preferably, the valve body has a through hole at the rear end for the valve stem to pass through, and an annular limiting part extends inward around the through hole. The valve stem has an annular protrusion on its outer periphery, and the annular limiting part and the annular protrusion limit the valve stem from exiting the valve cavity rearward.

[0014] Ideally, the inlet and outlet ends should be arranged alternately.

[0015] The beneficial effects of the above technical solution are as follows:

[0016] The stepless water flow regulating device includes a valve body, an inlet end, an outlet end, and a valve stem. The valve body forms a valve cavity, and the outer periphery of the valve body forms an annular arc-shaped flow groove, which enables the stepless regulation of water flow and avoids sudden changes in water flow. Attached Figure Description

[0017] Figure 1 This is a perspective view of the stepless water inlet adjustment device of this utility model;

[0018] Figure 2 This is a cross-sectional view of the stepless water inlet adjustment device of this utility model. Figure 1 ;

[0019] Figure 3 This is a cross-sectional view of the stepless water inlet adjustment device of this utility model. Figure 2 ;

[0020] Figure 4 This is a cross-sectional view of the stepless water inlet adjustment device of this utility model. Figure 3 ;

[0021] Figure 5 This is a perspective view of the valve stem in the stepless water inlet regulating device of this utility model;

[0022] Figure 6 This is a schematic diagram illustrating the specific application of the stepless water inlet adjustment device of this utility model. Detailed Implementation

[0023] To make the technical means, creative features, achieved objectives and effects of this utility model easier to understand, the following embodiments are described in detail with reference to the accompanying drawings. And the following definitions are provided: Figure 2 The up-down direction shown on the paper is the up-down direction in this embodiment, and the left-to-right direction shown in the illustration is the front-to-back direction in this embodiment.

[0024] See Figures 1 to 6 As shown in the figure, the stepless water inlet adjustment device provided in this embodiment includes:

[0025] The valve body 1 has a valve cavity 2 inside, and an inlet end 5 and an outlet end 4 connected to the valve cavity 2 are formed on the side wall of the valve body 1.

[0026] The valve stem 3 is at least partially inserted into the valve cavity 2 and can move along the extension direction of the valve cavity 2. An annular arc-shaped flow groove 8 is formed on the outer periphery of the valve stem 3, and a flow cavity 6 is formed between the flow groove 8 and the inner wall of the valve cavity 2.

[0027] Furthermore, during the movement of the valve stem 3, it has a conductive state in which the inlet end 5 and the outlet end 4 are respectively connected through the flow cavity 6, and a flow-disconnected state in which at least one of the inlet end 5 and the outlet end 4 is moved away from the flow cavity 6. Within the active range of the conductive state, moving the valve stem 3 can cause the gap between the open side of the inlet end 5 or the outlet end 4 and the outer wall of the flow channel 8 to gradually expand or shrink, thereby realizing the function of stepless water flow regulation and avoiding sudden changes in water flow. It is worth noting that the valve cavity 2 extends in the back-to-back direction and is configured as a hollow cylinder.

[0028] In a preferred embodiment, in cross-sectional view, the outer diameter of the flow channel 8 is small in the middle and large at both ends, so that the fluid flow regulation process first gradually increases and then gradually decreases. Furthermore, the valve stem 3 includes a front part 9 and a rear part 10 connected together. The flow channel 8 is formed in the front part 9, and annular grooves 11 for embedding sealing rings 12 are respectively formed on the front and rear sides. The rear part 10 is rod-shaped.

[0029] As a further preferred embodiment, the rear portion 10 of the valve stem 3 extends at least partially outside the valve cavity 2, and a spring (not shown) is sleeved on the front end of the front portion 9. A plug 7 is detachably mounted on the opposite end (i.e., the front end) of the valve cavity 2. The end of the spring away from the valve stem 3 abuts against the plug 7 to provide a force to the valve stem 3 away from the plug 7. This allows the valve stem 3 to be moved within the valve cavity 2 by pushing it, enabling control of flow opening, closing, and water flow magnitude.

[0030] As a further preferred embodiment, the valve body 1 also has a limiting structure for maintaining the position of the valve stem 3. Specifically, it can be a locking and limiting component such as a snap-fit ​​groove structure or a pin structure that fits onto the outer periphery of the end of the valve stem 3 that extends out of the valve cavity 2, and is not limited to this.

[0031] As a further preferred embodiment, the valve body 1 has a through hole at the rear end for passing through the rear part 10 of the valve stem 3, and an annular limiting part 17 is formed extending inward around the through hole. The valve stem 3 has an annular protrusion 18 on its outer periphery, and the annular limiting part 17 and the annular protrusion 18 limit the valve stem 3 from being dislodged from the valve cavity 2.

[0032] As a further preferred embodiment, the inlet end 5 and the outlet end 4 are arranged alternately, that is, their central axes are not on the same straight line.

[0033] In practical applications, refer to Figure 2 to... Figure 4 As shown, Figure 2 When the valve stem 3 is in a flow-interrupted state, and is gradually pushed forward (to the left as shown in the diagram) a certain distance, the opening side of the outlet end 4 connects with the flow chamber 6, allowing water to flow out. Because the flow groove 8 is designed in an annular arc shape, the water flow gradually increases as the valve stem 3 moves to the left. Figures 3 to 4 During the repositioning process, similarly to the above, the water flow gradually decreases until it is completely shut off. When the valve stem 3 moves in the reverse direction, the gap between the opening of the outlet end 4 and the outer wall of the flow channel 8 gradually decreases. The change in the gap between the inlet end 5 and the outer wall of the flow channel 8 is similar to the above, so it will not be described again.

[0034] As another design option, the central axes of the inlet end 5 and the outlet end 4 can be set on the same straight line. In the active range of the conducting state, the moving valve stem 3 can cause the gap between the opening side of the inlet end 5 and the outlet end 4 and the outer wall of the flow channel 8 to expand or shrink synchronously, which can also achieve the purpose of stepless adjustment of water flow.

[0035] In addition, a second spring can be fitted on the outside of the valve stem 3. The two ends of the second spring abut against the annular protrusion 18 of the valve stem 3 and the annular limiting part 17 at the rear end of the valve cavity 2, respectively, to provide a force close to the plug 7 to the valve stem 3, so that its interior is pushed by the two springs and is in a state of force balance, and is easier to be pushed forward or backward.

[0036] In specific implementation, combined with Figure 6As shown, the stepless water inlet adjustment device is used in ironing equipment. The ironing equipment is also equipped with a steam generator 13, a steam outlet panel 14 connected to the steam outlet end of the steam generator 13, a water supply device, a blower 16, and a three-way pipe 15. The water supply device is equipped with a water tank and a water pump, which are connected to the water inlet end 5 of the stepless water inlet adjustment device. The outlet end of the three-way pipe 15 is connected to the steam generator 13. The water outlet end 4 of the stepless water inlet adjustment device is connected to the first inlet of the three-way pipe 15. The air outlet end of the blower 16 is connected to the second inlet of the three-way pipe 15. Inside the three-way pipe 15, the water flow is cut into granular liquid water by a high-speed airflow. After mixing into a water-air mixture, it is sent into the steam generator 13 for vaporization and sprayed out from the steam outlet panel 14, resulting in a higher degree of vaporization. Furthermore, when the water inlet stepless adjustment device is in the interrupted state, the air force provided by the air pump 16 directly enters the steam generator 13 for heating through the three-way pipe 15, so that the ironing equipment as a whole constitutes a drying equipment. At the same time, the above-mentioned connection method mainly adopts pipeline connection.

[0037] The above description is merely a preferred embodiment of the present utility model and is illustrative rather than restrictive. Those skilled in the art will understand that many changes, modifications, and even equivalents can be made within the spirit and scope defined by the claims of the present utility model, all of which will fall within the protection scope of the present utility model.

Claims

1. A water inlet non-step regulating device, characterized in that, The utility model relates to a valve body (1) internally constitutes valve cavity (2), the side wall of valve body (1) is formed with the water inlet end (5) and water outlet end (4) that communicate to valve cavity (2); Valve stem (3) at least partial wear in valve cavity (2) and can move along the extension direction of valve cavity (2), the outer periphery of valve stem (3) is formed with annular circular arc overcurrent groove (8), and constitutes overcurrent cavity (6) between overcurrent groove (8) and the inner wall of valve cavity (2); And, in the movement of valve stem (3), have the conductive state of making water inlet end (5) and water outlet end (4) communicate overcurrent cavity (6) respectively, the off state of at least one of water inlet end (5) and water outlet end (4) away from overcurrent cavity (6), and in the active interval of conductive state, the opening side of water inlet end (5) or water outlet end (4) can be gradually enlarged or reduced between the gap of the outer wall of overcurrent groove (8) by moving valve stem (3). In the sectional view, the outer diameter of overcurrent groove (8) is small in the middle and large in the front and back.

2. The water inlet non-step adjusting device according to claim 1, wherein Valve stem (3) includes the front (9) and rear (10) of interface, overcurrent groove (8) is constituted on the front (9) and is provided with annular groove (11) for embedding sealing ring (12) on the front and back sides respectively, and the rear (10) is constituted as a rod.

3. The water inlet non-step adjusting device according to claim 2, wherein The rear (10) at least partial extends out of valve cavity (2), the front end of front (9) is sleeved with spring, the other end of valve cavity (2) is detachably assembled with plug (7), and the end of spring away from valve stem (3) abuts against plug (7) to provide force to valve stem (3) away from plug (7).

4. The water inlet non-step adjusting device according to claim 3, wherein Valve body (1) also has the limiting structure for keeping the position of valve stem (3).

5. The water inlet non-step adjustment device according to claim 4, wherein The rear end of valve body (1) is provided with through hole for passing through the rear (10) of valve stem (3), and annular limiting portion (17) is formed by extending inward around the through hole, the outer periphery of valve stem (3) has annular protrusion (18), and the rear of valve stem (3) is limited to come out of valve cavity (2) by annular limiting portion (17) and annular protrusion (18).

6. The water inlet non-step adjusting device according to claim 5, wherein Water inlet end (5) and water outlet end (4) are staggered.

7. The water inlet non-step adjustment device according to claim 6, wherein ​

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