Flow adjusting device

Abstract

The utility model discloses a flow adjusting device which comprises a valve body, a valve rod and a rotating piece. A slideway is arranged on the valve body, the valve rod is inserted into the slideway to linearly slide in the slideway in a reciprocating mode, a slideway water inlet and a slideway water outlet are formed in the side wall of the slideway, a blocking face is arranged on the side wall of the valve rod, and the valve rod slides inwards and outwards to increase or reduce the blocking area of the blocking face to the slideway water inlet and / or the slideway water outlet. The rotating part is arranged on the valve shell around the axis in a rotating mode and provided with an arc-shaped section, the arc-shaped section is provided with a starting end and a terminal end, the distance between an arc-shaped track, from the starting end to the terminal end, of the arc-shaped section and the rotating axis of the rotating part is continuously increased or decreased, and the arc-shaped section is in sliding fit with the outer end of the valve rod. And when the rotating piece rotates, the valve rod is driven to slide inwards or outwards. The arc-shaped section rotates to drive the valve rod to linearly slide back and forth in the slide way, so that the valve rod adjusts the water flow of the slide way water inlet and / or the slide way water outlet, the structure is simple and compact, the adjustment is more accurate, and the use is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of bathrooms, in particular to a flow regulating device. Background Art

[0002] In order to avoid wasting water resources, it is usually necessary to control the water flow rate of the water outlet device. The commonly used direct-acting flow control valve generally adjusts the flow rate by pushing and pulling, which is inconvenient to adjust and the flow regulation accuracy is not high enough. Utility Model Content

[0003] The purpose of the utility model is to provide a flow regulating device to overcome the above-mentioned problem of inconvenient flow regulation.

[0004] To achieve the above-mentioned purpose, the solution of the utility model is: a flow regulating device, including a valve body, a valve stem and a rotating member;

[0005] The valve body is provided with a slideway, the valve stem is inserted into the slideway to slide linearly back and forth in the slideway, the slideway side wall is provided with a slideway water inlet and a slideway water outlet, the valve stem side wall is provided with a blocking surface, the valve stem slides inward and outward to increase or decrease the blocking area of ​​the blocking surface to the slideway water inlet and / or the slideway water outlet;

[0006] The rotating member is arranged on the valve housing for rotation around the axis. The rotating member is provided with an arc segment, which has a starting end and an end end. The distance between the arc trajectory from the starting end to the end end on the arc segment and the rotation axis of the rotating member continuously increases or decreases. The arc segment is slidably fitted on the outer end of the valve stem to drive the valve stem to slide inward or outward when the rotating member rotates.

[0007] Furthermore, the arc section of the rotating part is an arc-shaped rib along the starting end to the end end, and a groove is provided at the outer end of the valve stem. The arc section is inserted into the groove and slidably fits in the groove. When the arc section rotates with the rotating part, it pushes against the inner wall of the groove to make the valve stem slide inward, or hooks the inner wall of the groove to drive the valve stem to slide outward.

[0008] Furthermore, an elastic member is provided in the valve housing, one end of the elastic member is fixed to the inner wall of the valve housing, and the other end is connected to the inner end of the valve stem. The elastic member is used to elastically drive the outer end of the valve stem to abut against the arc segment.

[0009] Furthermore, the projection range of the slideway water inlet or the slideway water outlet gradually expands or shrinks along the valve stem sliding path.

[0010] Furthermore, the projection of the slide inlet or the slide outlet is a triangle.

[0011] Furthermore, a water passing section and a blocking section are provided on the valve stem. The water passing section is arranged adjacent to the blocking section. The outer diameter of the blocking section is consistent with the cross-sectional profile of the slide. The outer diameter of the water passing section is smaller than the cross-sectional profile of the slide. The valve stem slides inward and outward to make the water passing section and the blocking section slide relative to the water inlet or outlet of the slide.

[0012] Furthermore, at least two O-rings are provided on the valve stem, the two O-rings are arranged at intervals, and the water passing section and the blocking section are arranged between the two sealing grooves.

[0013] Furthermore, the rotating member includes a knob and a follower, a circular segment is provided on the valve housing, the knob is sleeved on the circular segment and rotates, the follower and the knob are fixedly connected to rotate with the knob, and the arc segment is provided on the follower.

[0014] Furthermore, a limiting portion is provided at the outer end of the slideway to limit the valve stem from slipping out of the slideway.

[0015] Furthermore, a valve body water inlet and a valve body water outlet are provided on the valve body, the valve body water inlet is connected with the slideway water inlet, and the valve body water outlet is connected with the sliding water outlet.

[0016] After adopting the above scheme, the beneficial effects of the utility model are:

[0017] The utility model utilizes the principle that the distance between the arc trajectory from the starting end to the end end of the upper edge of the arc segment and the rotation axis of the rotating part is continuously increasing or decreasing. Through the sliding cooperation between the arc segment and the valve stem, the rotating part drives the arc segment to rotate to realize the linear reciprocating sliding of the slide rod in the slide, so that the valve stem slides inwards and outwards to increase or decrease the blocking area facing the slide inlet and / or the slide outlet, thereby realizing water flow regulation. The structure is simple and compact, and the rotary regulation is more accurate than the direct-acting flow regulation, and it is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the combined structure of the utility model.

[0019] Figure 2 It is a bottom view of the utility model.

[0020] Figure 3 It is a schematic diagram of the exploded structure of the utility model.

[0021] Figure 4 It is a bottom view of the rotating part of the utility model.

[0022] Figure 5 It is a three-dimensional cross-sectional structural schematic diagram of the utility model.

[0023] Figure 6 It is a schematic diagram showing that the water flow rate of the utility model reaches the maximum.

[0024] Figure 7It is a schematic diagram showing that the water flow rate of the utility model is minimized.

[0025] Figure 8 It is a cross-sectional structural schematic diagram of another implementation manner of the utility model.

[0026] Description of labels:

[0027] 1-valve body, 2-valve stem, 3-rotating part, 4-valve housing, 5-elastic part, 6-O-ring, 7-limiting part, 11-slide, 12-slide water inlet, 13-slide water outlet, 14-valve body water inlet, 15-valve body water outlet, 21-sealing surface, 22-groove, 23-water passing section, 24-sealing section, 25-sealing groove, 31-arc section, 32-knob, 33-follower. DETAILED DESCRIPTION

[0028] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] In the claims, specification and the above-mentioned drawings of the utility model, unless otherwise explicitly defined, directional words, such as the use of terms such as "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise" and the like to indicate directions or positional relationships are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation or be constructed and operated in a specific orientation, so they cannot be understood as limiting the specific protection scope of the utility model.

[0030] like Figures 1 to 8 As shown, a flow regulating device comprises a valve body 1, a valve stem 2 and a rotating member 3; a slideway 11 is provided on the valve body 1, a valve stem 2 is inserted into the slideway 11 to slide linearly and reciprocatingly in the slideway 11, a slideway water inlet 12 and a slideway water outlet 13 are provided on the side wall of the slideway 11, a sealing surface 21 is provided on the side wall of the valve stem 2, and the valve stem 2 slides inside and outside to increase or reduce the sealing area of ​​the sealing surface 21 on the slideway water inlet 12 and / or the slideway water outlet 13; specifically, as Figure 5 As shown, the valve stem 2 is provided with a water passing section 23 and a blocking section 24. The water passing section 23 is arranged adjacent to the blocking section 24. The outer diameter of the blocking section 24 is consistent with the cross-sectional profile of the slide 11, and the outer diameter of the water passing section 23 is smaller than the cross-sectional profile of the slide 11. The valve stem 2 slides inside and outside to make the water passing section 23 and the blocking section 24 slide relative to the slide water inlet 12 or the slide water outlet 13, which can increase or decrease the size of the water flow rate.

[0031] In this specific embodiment, Figure 5As shown, the valve body 1 also has a valve body water inlet 14 and a valve body water outlet 15 . The valve body water inlet 14 is connected to the slideway water inlet 12 , and the valve body water outlet 15 is connected to the slideway water outlet 13 .

[0032] In this specific embodiment, Figure 5 As shown, the slide water inlet 12 and the slide water outlet 13 are arranged opposite to each other, and the valve stem 2 slides inwards and outwards to realize the sealing surface 21 and simultaneously increase or decrease the sealing area of ​​the slide water inlet 12 and the slide water outlet 13. In other embodiments, the slide water inlet 12 and the slide water outlet 13 may also not be arranged opposite to each other, and the valve stem 2 slides inwards and outwards to only increase or decrease the sealing area of ​​the slide water inlet 12 or the slide water outlet 13, and the size of the water flow rate can also be adjusted, but it is not limited to this.

[0033] In this specific embodiment, Figure 1 As shown, the rotating member 3 is rotatably arranged on the valve housing 4 around the axis, and an arc segment 31 is arranged on the rotating member 3. The arc segment 31 has a starting end 311 and an end end 312. The distance between the arc track along the starting end 311 to the end end 312 of the arc segment 31 and the rotation axis of the rotating member 3 is continuously increasing or decreasing (such as Figure 4 As shown), that is, the arc segment 31 is an arc segment and its center is not coaxial with the rotation axis. Of course, the arc segment 31 may not be an arc segment, as long as the changing trend of the distance between its arc trajectory and the rotation axis is ensured to be continuously increasing or decreasing from the starting end 311 to the end end 312. The arc segment 31 is slidably fitted on the outer end of the valve stem 2 to realize driving the valve stem 2 to slide inward or outward when the rotating part 3 rotates, and it is easy to control the sliding distance of the valve stem 2, which can improve the accuracy of controlling the water flow rate.

[0034] In this specific embodiment, Figure 3 As shown, the arc segment 31 of the rotating member 3 is an arc-shaped rib along the starting end 311 to the end end 312, and a groove 22 is provided at the outer end of the valve stem 2. The arc segment 31 is inserted into the groove 22 and slidably fits in the groove 22. When the arc segment 31 rotates with the rotating member 3, it pushes against the inner wall of the groove 22 to make the valve stem 2 slide inward, or hooks the inner wall of the groove 22 to drive the valve stem 2 to slide outward.

[0035] When using, Figure 5 As shown, the water flow section 23 of the valve stem 2 is arranged on a side close to the inner end of the valve stem 2, and the blocking section 24 is located on a side close to the outer end of the valve stem 2, that is, when the valve stem 2 slides inward, the blocking surface 21 blocks the slideway water inlet 12, thereby reducing the water flow; when the valve stem 2 slides outward to move the blocking surface 21 outward, the water flow section 23 slides toward the slideway water inlet 12, thereby increasing the water flow. Of course, in other embodiments, the positions of the water flow section 23 and the blocking section 24 of the valve stem 2 can also be swapped, so that the valve stem 2 slides inward to increase the water flow, or the valve stem 2 slides outward to reduce the water flow; it is not limited to this.

[0036] In this specific embodiment, Figure 6 When the rotating member 3 drives the valve stem 2 to slide outward until the water-passing section is completely aligned with the water inlet 12 of the slideway, the water-passing flow rate reaches the maximum. Figure 7 When the rotating member 3 pushes the valve stem 2 to slide inwardly until the blocking area of ​​the blocking surface 21 to the slideway water inlet 12 reaches the maximum, the water flow rate reaches the minimum.

[0037] like Figure 3 As shown, the rotating member 3 includes a knob 32 and a follower 33. A circular segment 41 is provided on the valve housing 4. The knob 31 is sleeved on the circular segment 41 and rotates. The follower 33 and the knob 32 are fixedly connected to rotate with the knob 32. The arc segment 31 is arranged on the follower 33. Specifically, the follower 33 and the knob 32 are fixed by snapping. Of course, the follower 33 and the knob 32 can also be integrally formed, and are not limited thereto.

[0038] In this specific embodiment, the projection range of the slide water inlet 12 and the slide water outlet 13 is gradually expanded or gradually reduced along the sliding path of the valve stem 2, so that when the blocking surface 21 increases the blocking area of ​​the slide water inlet 12, the water flow rate can be quickly reduced, or when the blocking surface 21 reduces the blocking area of ​​the slide water inlet 12 and the sliding water outlet 13, the water flow rate can be quickly increased, the adjustment speed of the water flow rate is faster, and the change of the water flow rate is more obvious. Specifically, Figure 2 As shown, the projections of the slide water inlet 12 and the slide water outlet 13 are triangular structures. Of course, in other embodiments, they can also be trapezoidal or other structures. It is not limited thereto, and those skilled in the art can design according to specific circumstances.

[0039] In this specific embodiment, Figure 3 As shown, at least two sealing rings 6 are provided on the valve stem 2, and the two sealing rings 6 are arranged at intervals. The water passing section 23 and the blocking section 24 are arranged between the two sealing grooves 22 to prevent the water flow from the slideway water inlet 12 and the slideway water outlet 13 from overflowing from the slideway 11 to ensure the sealing. Specifically, two sealing grooves 25 are provided on the valve stem 2, and two O-rings 6 are respectively embedded in the two sealing grooves 25, and the O-rings 6 are against the inner wall of the slideway 11.

[0040] In this specific embodiment, Figure 5 As shown, the outer end of the slideway 11 has a limiting portion 7 to limit the valve stem 2 from slipping out of the slideway 11 .

[0041] Another implementation mode of the present invention is as follows: Figure 8As shown, an elastic member 5 is provided in the valve housing 4, one end of the elastic member 5 is fixed to the inner wall of the valve housing 4, and the other end is connected to the inner end of the valve stem 2. The elastic member 5 is used to elastically drive the outer end of the valve stem 2 to abut against the arc segment 31. Specifically, when the rotary knob 32 is rotated by force to drive the follower 33 to push the valve stem 2 to slide inward, the elastic member 5 is compressed. When the knob 32 is rotated in the opposite direction, the elastic member 5 elastically drives the valve stem 2 to always abut against the arc segment 31, so as to ensure that the rotation of the knob 32 can better control the water flow rate in the slideway 11. Specifically, the elastic member 5 is a spring, and in other embodiments, it can also be a spring, etc., but is not limited to this.

[0042] The above description is only a preferred embodiment of the present utility model and is not a limitation on the design of the present case. Any equivalent changes made based on the key design of the present case shall fall within the protection scope of the present case.

Claims

1. A flow regulating device, characterized in that: It comprises a valve body (1), a valve stem (2) and a rotating part (3); The valve body (1) is provided with a slideway (11), the valve stem (2) is inserted into the slideway (11) to slide linearly back and forth in the slideway (11), the side wall of the slideway (11) is provided with a slideway water inlet (12) and a slideway water outlet (13), the side wall of the valve stem (2) is provided with a blocking surface (21), and the valve stem (2) slides inwards and outwards to increase or decrease the blocking area of ​​the blocking surface (21) on the slideway water inlet (12) and / or the slideway water outlet (13); The rotating member (3) is arranged on the valve housing (4) to rotate around the axis. The rotating member (3) is provided with an arc segment (31). The arc segment (31) has a starting end (311) and an end end (312). The distance between the arc track from the starting end (311) to the end end (312) on the arc segment (31) and the rotation axis of the rotating member (3) is continuously increased or continuously decreased. The arc segment (31) is slidably matched with the outer end of the valve stem (2) to drive the valve stem (2) to slide inward or outward when the rotating member (3) rotates.

2. A flow regulating device according to claim 1, characterized in that: The arc section (31) of the rotating member (3) is an arc-shaped rib extending from a starting end (311) to an end end (312). A groove (22) is provided at the outer end of the valve stem (2). The arc section (31) is inserted into the groove (22) and slidably fits in the groove (22). When the arc section (31) rotates with the rotating member (3), it pushes against the inner wall of the groove (22) to make the valve stem (2) slide inward, or hooks the inner wall of the groove (22) to drive the valve stem (2) to slide outward.

3. A flow regulating device according to claim 1, characterized in that: An elastic member (5) is provided in the valve housing (4), one end of the elastic member (5) is fixed to the inner wall of the valve housing (4), and the other end is connected to the inner end of the valve stem (2). The elastic member (5) is used to elastically drive the outer end of the valve stem (2) to abut against the arc segment (31).

4. A flow regulating device according to claim 1, characterized in that: The projection range of the slideway water inlet (12) or the slideway water outlet (13) gradually expands or shrinks along the sliding path of the valve stem (2).

5. A flow regulating device according to claim 4, characterized in that: The projection of the slide water inlet (12) or the slide water outlet (13) is a triangle.

6. A flow regulating device according to claim 1, characterized in that: The valve stem (2) is provided with a water passing section (23) and a blocking section (24); the water passing section (23) is arranged adjacent to the blocking section (24); the outer diameter of the blocking section (24) is consistent with the cross-sectional profile of the slideway (11); the outer diameter of the water passing section (23) is smaller than the cross-sectional profile of the slideway (11); the valve stem (2) slides inside and outside so that the water passing section (23) and the blocking section (24) slide relative to the slideway water inlet (12) or the slideway water outlet (13).

7. A flow regulating device according to claim 6, characterized in that: At least two O-shaped sealing rings (6) are arranged on the valve stem (2), the two O-shaped sealing rings (6) are arranged at intervals, and the water passing section (23) and the blocking section (24) are arranged between the two sealing grooves (22).

8. A flow regulating device according to claim 1, characterized in that: The rotating member (3) comprises a knob (32) and a follower (33); a circular segment (41) is provided on the valve housing (4); the knob (32) is sleeved on the circular segment (41) and rotates; the follower (33) and the knob (32) are fixedly connected to rotate with the knob (32); and the arc segment (31) is provided on the follower (33).

9. A flow regulating device according to claim 1, characterized in that: The outer end of the slideway (11) is provided with a limiting portion (7) to limit the valve stem (2) from slipping out of the slideway (11).

10. A flow regulating device according to claim 1, characterized in that: The valve body (1) is provided with a valve body water inlet (14) and a valve body water outlet (15); the valve body water inlet (14) is connected to the slideway water inlet (12), and the valve body water outlet (15) is connected to the slideway water outlet (13).

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