TWI531747B - Fluid control device and its angle control - Google Patents

Description

Fluid control device and its angle control

The present invention relates to a fluid control device and an angle control member thereof, and more particularly to a fluid control device and an angle control member thereof that can adjust a range of rotation angles of a throttle plate.

Referring to Figures 1 and 2, a conventional fluid control device 20 is shown. The conventional fluid control device 20 includes a spool body 40 and a spool 30. The spool body 40 includes two inlets 42, 44 and an outlet 46. The spool 30 is used to control the mixing ratio of the fluids of the two inlets 42, 44.

The spool 30 includes a fixed seat 34, a shaft center 36 and a throttle plate 38. The fixing seat 34 can be locked to the valve body 40 for receiving the shaft 36 and the throttle plate 38 in the valve body 40. The throttle plate 38 is assembled to the lower portion of the shaft 36, and the upper portion of the shaft 36 is pivotally connected to the fixing base 34. The lever 35 above the shaft 36 passes through the through hole 33 of the holder 34. The lower portion of the shaft 36 includes a cavity 37 having a plurality of holes 37a. The throttle plate 38 includes two turns of perforations 38a corresponding to the perforations 42a, 44a of the two inlets 42, 44, respectively. When the lever 35 rotates the throttle plate 38, the overlapping area of the serpentine perforation 38a and the perforations 42a, 44a of the two inlets 42, 44 can be adjusted. The mixed fluid flows into the outlet 46 through the plurality of holes 37a of the cavity 37.

However, the range of rotation angle of the throttle plate 38 is fixed (for example, the rotation angle of the throttle plate 38 ranges from 0 to 240 degrees). In order to change the range of the rotation angle of the throttle plate 38 (for example, the range of the rotation angle of the throttle plate 38 is changed to 0 to 180 degrees), the shaft 36 or the fixing seat 34 must be redesigned, thereby increasing the manufacturing cost. .

Therefore, there is a need to provide an adjustable throttle angle of rotation. The range of fluid control devices can solve the aforementioned problems.

It is an object of the present invention to provide a fluid control device that can adjust the range of rotation angle of a throttle plate.

In order to achieve the above object, the present invention provides a fluid control device comprising: a valve body; and a valve core comprising: an axial center including an upper portion and a lower portion, the upper portion including a first joint portion; a throttle plate Attached to the lower portion of the shaft; an angle control member includes a second joint portion for combining the first joint portion on the upper portion of the shaft center, and by changing the relative relationship between the shaft center and the angle control member a positional relationship adjusts a range of rotation angles of the throttle plate; and a fixing seat locked to the valve body for accommodating the angle control member, the shaft center and the throttle plate in the valve body .

According to the fluid control device of the present invention, the range of the rotation angle of the throttle plate can be adjusted by changing the relationship between the relative positions of the axis and the angle control member. To adjust the range of rotation angle of the throttle plate, it is not necessary to redesign the shaft or the mount without increasing the manufacturing cost.

The above and other objects, features, and advantages of the present invention will become more apparent from the accompanying drawings.

20‧‧‧Fluid control device

30‧‧‧Spool

33‧‧‧through holes

34‧‧‧ fixed seat

35‧‧‧Control lever

36‧‧‧Axis

37‧‧‧ Cavity

37a‧‧ hole

38‧‧‧ throttle plate

38a‧‧‧Perforation

40‧‧‧Spool body

42‧‧‧Import

42a‧‧‧Perforation

44‧‧‧Import

44a‧‧‧Perforation

46‧‧‧Export

120‧‧‧Fluid control device

130‧‧‧Spool

132‧‧‧Angle control

133‧‧‧through holes

134‧‧‧ fixed seat

135‧‧‧Control lever

136‧‧‧Axis

136a‧‧‧ upper

136b‧‧‧ lower

137‧‧‧ cavity

137a‧‧ hole

138‧‧‧ throttle plate

138a‧‧‧Perforation

140‧‧‧Spool body

Imported 142‧‧‧

142a‧‧‧Perforation

144‧‧‧Import

144a‧‧‧Perforation

146‧‧ Export

150‧‧‧ first joint

152‧‧‧ external teeth

154‧‧‧Second junction

160‧‧‧First stop

162‧‧‧second stop

164‧‧‧third stop

220‧‧‧Fluid control device

230‧‧‧Spool

232‧‧‧Angle control

233‧‧‧through holes

234‧‧‧ fixed seat

235‧‧‧Control lever

236‧‧‧Axis

236a‧‧‧ upper

236b‧‧‧ lower

237‧‧‧ cavity

237a‧‧ hole

238‧‧‧ throttle board

238a‧‧‧Perforation

240‧‧‧Spool body

242‧‧‧Import

242a‧‧‧Perforation

246‧‧‧Export

250‧‧‧ first joint

252‧‧‧ external teeth

254‧‧‧Second junction

260‧‧‧ first stop

262‧‧‧second stop

A1‧‧‧ first angle

A2‧‧‧second angle

A3‧‧‧ third angle

AP‧‧‧Predetermined angle

R‧‧‧Rotation angle range

1 is a schematic exploded perspective view of a conventional fluid control device; FIG. 2 is a schematic cross-sectional view of a conventional fluid control device; FIG. 3a is a perspective exploded view of the fluid control device of the first embodiment of the present invention; FIG. 4 is a perspective exploded view of a fluid control device according to a first embodiment of the present invention; FIG. 5 is a schematic cross-sectional view of a fluid control device according to a first embodiment of the present invention; FIG. 6 is a plan view showing a combination of a mount, an angle control member and an axis of the present invention, showing an embodiment; 7 is a bottom view of the fixing seat of the present invention; FIG. 8 is a plan view showing the combination of the fixing seat, the angle control member and the shaft center of the present invention, which shows another embodiment; and FIG. 9 is the second embodiment of the present invention. A schematic exploded view of the fluid control device of the embodiment.

Referring to Figures 3a, 4 and 5, a fluid control device 120 of a first embodiment of the present invention is shown. The fluid control device 120 includes a spool body 140 and a spool 130. The spool body 140 includes two inlets 142, 144 and an outlet 146, wherein the two inlets 142, 144 are used to allow two fluids to flow in, and the outlets 146 are used to allow the two fluids to flow out. The spool 130 is disposed in the spool body 140 and is coupled to the outlet 146 for controlling the mixing ratio of the fluids of the two inlets 142, 144.

The spool 130 includes a mounting seat 134, an angle control member 132, a shaft center 136, and a throttle plate 138. The fixing seat 134 can be locked to the valve body 140 for receiving the angle control member 132, the shaft center 136 and the throttle plate 138 in the valve body 140. The throttle plate 138 is fixed to the lower portion 136b of the shaft center 136. For example, the ears of the throttle plate 138 are snapped into the two grooves of the lower portion 136b of the shaft 136, and the throttle plate 138 is fixed to the lower portion 136b of the shaft 136.

The angle control member 132 is configured to be fixedly coupled to the upper portion 136a of the shaft 136, and determines a range of rotation angles of the throttle plate 138. The axis 136 The upper portion 136a includes a first joint portion 150. In the present embodiment, the first joint portion 150 is a gear, and the outer edge of the gear has a plurality of external teeth 152. The angle control member 132 includes a second joint portion 154 for combining with the first joint portion 150 of the upper portion 136a of the shaft core 136. In the embodiment, the angle control member 132 is a ring member, and the angle control is performed. The inner edge of the member 132 has the second joint portion 154, and the second joint portion 154 is a plurality of internal teeth. The inner teeth are used to engage the outer teeth, and the angle control member 132 is sleeved and fixed to the upper portion 136a of the shaft center 136.

Referring to FIG. 3b, in another embodiment, the first joint portion 150 can be a plurality of pin holes, the angle control member 132 can be a latch, and the second joint portion 154 is one end of the plug, the end of the pin Plugged into one of the pin holes.

In this embodiment, the upper portion 136a of the shaft 136 is pivotally connected to the fixing base 134. For example, the mount 134 includes a consistent perforation 133, the upper portion 136a of the hub 136 includes a lever 135, and the lever 135 closely passes through the through hole 133. The fixing seat 134 covers the entire angle control member 132 and the first joint portion 150. The lower portion 136a of the shaft 136 includes a cavity 137 having a plurality of holes 137a. The throttle plate 138 includes two serpentine perforations 138a corresponding to the perforations 142a, 144a of the two inlets 142, 144, respectively. When the control lever 135 rotates the throttle plate 138 by electric (for example, a motor) or manually, the overlapping area of the through-holes 138a and the through holes 142a, 144a of the two inlets 142, 144 can be adjusted (ie, adjusted) The flow rate of fluid from the inlet 142 and the fluid from the inlet 144 into the cavity 137 of the spool 130). The mixed fluid flows into the outlet 146 through the plurality of holes 137a of the cavity 137.

Figure 6 is a plan view showing the combination of the fixing seat, the angle control member and the shaft center of the present invention. Referring to FIG. 6 and FIG. 3 simultaneously, the upper portion 136a of the shaft 136 further includes a first stopper 160 (for example, a fan shape having a first angle A1) on the first joint portion 150 (for example, a gear). The first stop 160 is rotatable as the control lever 135 rotates.

The angle control member 132 further includes a second stopper 162 (for example, a fan shape having a second angle A2). In this embodiment, the second block 162 Located at the inner edge of the ring member and juxtaposed with the second joint portion 154 (the inner teeth). When the internal teeth are engaged with the external teeth, the first and second stoppers 160 and 162 can be combined, and the combined first and second stoppers 160 and 162 can also rotate with the control rod 135. And rotate. For example, the relative position between the combined first and second stops 160, 162 can be adjusted to become a fan shape having a predetermined angle AP, the angle of the predetermined angle AP being greater than or equal to the first angle A1 and the second The angles of the angles A2 are added.

Please refer to FIG. 7, which is a bottom view of the fixing seat of the present invention. The fixing base 134 further includes a third blocking block 164 (for example, a fan shape having a third angle A3), and the third blocking block 164 is fixed to limit the combined first and second blocking blocks 160 and 162. The range of rotation angles R. When the control lever 135 rotates the throttle plate 138, the range of rotation angle of the throttle plate 138 is determined by the range of rotation angles R of the combined first and second stops 160, 162.

For example, if the predetermined angle AP of the first and second stops 160, 162 after combination is 60 degrees, and the third angle A3 of the third block 164 is 60 degrees, the first and the The rotation angle range R of the second stoppers 160 and 162 is 0 to 240 degrees (FIG. 6 shows an embodiment), that is, the rotation angle of the throttle plate 138 ranges from 0 to 240 degrees (ie, the throttle plate 138 can be The maximum angle of rotation is 240 degrees).

For example, if the predetermined angle AP of the first and second stops 160, 162 after combination is 120 degrees, and the third angle of the third block 164 is 60 degrees, the first and the The rotation angle range R of the second stopper is 0 to 180 degrees (the other embodiment is shown in FIG. 8), that is, the rotation angle of the throttle plate 138 ranges from 0 to 180 degrees.

According to the fluid control device 120 of the present invention, the range of the rotation angle of the throttle plate 138 can be changed by changing the relative positions of the axis 136 and the angle control member 132 (the first and second stops 160, 162 are combined). The fan-shaped predetermined angle AP) is adjusted. To adjust the range of rotation angle of the throttle plate 138, the shaft 136 or the mount 134 need not be redesigned, thereby not increasing the manufacturing cost. Furthermore, the combined first and second stops 160, 162 The fan shape having different predetermined angles AP can be adjusted at any time as needed, and the range of the rotation angle of the throttle plate 138 can be adjusted at any time.

Referring to Figure 9, a fluid control device 220 of a second embodiment of the present invention is shown. The fluid control device 220 includes a spool body 240 and a spool 230. The fluid control device 220 of the second embodiment is generally similar to the fluid control device 120 of the first embodiment, wherein like elements are labeled like like numerals. The difference between the second embodiment and the fluid control devices 220 and 120 of the first embodiment is that the valve body 240 includes an inlet 242 and an outlet 246, wherein the inlet 242 is used to allow a fluid to flow in, and the outlet 246 is used. In order to let the fluid flow out. The spool 230 is disposed in the spool body 240 and is coupled to the outlet 246 for controlling the flow of fluid from the inlet 242.

The spool 230 of the second embodiment has a similar function to the spool 130 of the first embodiment. The throttle plate 238 includes a serpentine shaped perforation 238a corresponding to the perforation 242a of the inlet 242. When the control rod 235 rotates the throttle plate 238, the overlapping area of the through hole 238a and the through hole 242a of the inlet 242 can be adjusted (that is, the fluid from the inlet 242 is adjusted to flow into the cavity 237 of the valve body 230). Traffic). The fluid flows into the outlet 246 through the plurality of holes 237a of the cavity 237.

According to the fluid control device of the present invention, the range of the rotation angle of the throttle plate can also be changed by changing the relative position of the axis and the angle control member (the predetermined angle of the fan shape after the combination of the first and second stops) And was adjusted. To adjust the range of rotation angle of the throttle plate, it is not necessary to redesign the shaft or the mount without increasing the manufacturing cost. Furthermore, the combined first and second stops can be adjusted to a fan shape having different predetermined angles as needed, thereby adjusting the range of rotation angle of the throttle plate at any time.

In the above, it is merely described that the present invention is an embodiment or an embodiment of the technical means for solving the problem, and is not intended to limit the scope of implementation of the present invention. That is, the equivalent changes and modifications made in accordance with the scope of the patent application of the present invention or the scope of the invention are covered by the scope of the invention.

120‧‧‧Fluid control device

130‧‧‧Spool

132‧‧‧Angle control

133‧‧‧through holes

134‧‧‧ fixed seat

135‧‧‧Control lever

136‧‧‧Axis

136a‧‧‧ upper

136b‧‧‧ lower

137‧‧‧ cavity

137a‧‧ hole

138‧‧‧ throttle plate

138a‧‧‧Perforation

140‧‧‧Spool body

Imported 142‧‧‧

142a‧‧‧Perforation

144‧‧‧Import

144a‧‧‧Perforation

146‧‧ Export

150‧‧‧ first joint

152‧‧‧ external teeth

154‧‧‧Second junction

160‧‧‧First stop

162‧‧‧second stop

Claims (10)

A fluid control device comprising: a valve body; and a valve core comprising: an axial center including an upper portion and a lower portion, the upper portion including a first joint portion; and a throttle plate fixed to the shaft center a lower angle control member includes a second joint portion for combining the first joint portion on the upper portion of the shaft center, and adjusting the throttle plate by changing a relationship between the axial center and the relative position of the angle control member a rotation angle range; and a fixing seat locked to the valve body for accommodating the angle control member, the shaft and the throttle plate in the valve body; wherein: the first joint Having a plurality of external teeth; the second joint portion is a plurality of internal teeth, and all of the internal teeth are engaged with all of the external teeth, so that the angle control member is assembled and secured to the upper portion of the shaft; The upper portion further includes a first stopper; the angle control member includes a second stopper; and the combined first and second stoppers are adjusted to a fan shape having different predetermined angles as needed, and are adjusted at any time The range of rotation angle of the throttle plate. The fluid control device according to claim 1, wherein the first joint portion is a gear, and the outer edge of the gear has a plurality of external teeth. The fluid control device of claim 2, wherein the upper portion of the shaft further comprises a first stop on the gear. The fluid control device of claim 3, wherein the first stop has a first angular shape. The fluid control device of claim 4, wherein the angle control member comprises an inner edge, the second stop being located at the inner edge and juxtaposed with the inner teeth. The fluid control device of claim 5, wherein the second stop has a second angled sector. The fluid control device of claim 6, wherein the first and second stops are combined when the internal teeth are engaged with the external teeth, and the first and second are combined The stopper becomes a fan shape having a predetermined angle, and the predetermined angle is greater than or equal to the addition of the first angle and the second angle. The fluid control device of claim 5, wherein the fixing base further comprises a third blocking block, wherein the third blocking block is fixed to limit the combined first and second blocking blocks. The range of rotation angles. A fluid control device comprising: a valve body; and a valve core comprising: an axial center including an upper portion and a lower portion, the upper portion including a first joint portion; and a throttle plate fixed to the shaft center a lower angle control member includes a second joint portion for combining the first joint portion on the upper portion of the shaft center, and adjusting the throttle plate by changing a relationship between the axial center and the relative position of the angle control member a rotation angle range; and a fixing seat locked to the valve body for accommodating the angle control member, the shaft and the throttle plate in the valve body; wherein: the first joint a plurality of pin holes; the angle control member is a latch, the second joint portion is one end of the pin, the end of the pin is inserted into one of the pin holes; the upper portion of the shaft further includes a first block a block; the angle control member includes a second block; The combined first and second stops are adjusted to a fan shape having different predetermined angles as needed, and the rotation angle range of the throttle plate is adjusted at any time. An angle control member is configured to be fixedly coupled to an axis, the axis includes a gear and a first block, the first block is located on the gear, the angle control member comprises: an inner edge; An inner tooth located at the inner edge; and a second block located at the inner edge and juxtaposed with the inner teeth, wherein the first teeth are engaged when the inner teeth are engaged with the plurality of external teeth of the gear And combining the second block, the combined first and second blocks are adjusted to have a fan shape having different predetermined angles as needed; wherein: an upper portion of the axis includes a first joint, the first The joint portion has a plurality of external teeth; and the angle control member includes a second joint portion, the second joint portion is a plurality of internal teeth, and all of the internal teeth are engaged with all of the external teeth, so that the angle control The pieces are firmly attached to the upper part of the shaft.