TW201013352A - Balanced water-intake control valve - Google Patents

Abstract

Disclosed is a balanced water-intake control valve, characterized in an adjusting mechanism of water level in upper limit connected between two linkage rods. The adjusting mechanism includes a first pivot guide, a second pivot guide, a lead screw and an adjusting nut. The first pivot guide is pivotally connected with a first linkage rod for driving a valve rod. The second pivot guide is pivotally connected with a second linkage rod connecting a float. Two ends of the lead screw are respectively screw-jointed with the first and second pivot guides. The adjusting nut is fastened at a middle portion of the lead screw. By spinning the lead screw, the distance between the first and second pivot guides can be adjusted. Accordingly, the water level in upper limit can be changed or adjusted at user side after installing to control storage maximum.

Description

201013352 IX. DESCRIPTION OF THE INVENTION: TECHNICAL FIELD The present invention relates to a device for taking water, collecting water or distributing water, and more particularly to a balanced inlet control valve. [Prior Art] All known water storage or liquid storage equipment, such as residential or industrial water towers, aquaculture tanks, toilets, etc., need to be equipped with a water inlet control valve in the water tower or water storage tank. Automatically replenish the water when the water level is insufficient. The current influent control valve, such as the "Inlet Water Control Valve" patent case of the Republic of China Invention Patent No. 591162, which is approved by the applicant, is based on the method of using the float or floating body. Control, proportionally open/close the valve or stem plug to replenish the water with the level of the water level; when the water level in the water tower or the water tank drops to a low water level, the valve or valve of the conventional water inlet control valve The rod plug is opened to replenish the water, and when the water level in the water storage or liquid storage device gradually rises to a high water level, the valve or stem plug of the conventional water control valve is closed. Stop replenishing the water. Since the floating system of the conventional water inlet control valve is directly combined with the valve or the valve stem to control the operation of the valve or the valve stem plug, it is impossible to adjust the height according to the user's demand and control the water storage or The maximum storage capacity of the liquid storage device is inconvenient for the user to use; and the conventional water inlet control valve is expensive to manufacture, and therefore, if the user wants to change the position of the upper limit of the water level to change the maximum storage amount, it needs to be restarted. The purchase of another set of water inlet control valves or the replacement of the use of different lengths or angles of the linkage rods for connecting the floating body is not only inconvenient to use, but also has an increase in installation cost and time consuming. 201013352 [Invention] The main purpose is to provide a balanced escape type % water control valve 'the user can change or adjust the upper limit of the water level after installation, to achieve the effect of controlling the maximum storage amount. The object of the present invention is to solve the problem The technical problem is achieved by the following social & 'programming method ◎ ◎. A balanced water inlet control according to the present invention mainly includes a valve a valve body, a first linkage rod, a second linkage rod, a floating body and a water level upper limit adjustment mechanism. The valve system has an air passage. The valve rod is movably disposed in the valve body. The valve stem has a valve plug for blocking the flow passage of the valve body. The first linkage rod is dragged to the valve body for driving the valve stem. The second linkage rod is pivotally connected thereto. The valve body is connected to the second linkage rod. The water level upper limit adjustment mechanism comprises a first pivoting guide, a second splicing guide, a lead screw and an adjusting nut. The guiding member is pivotally connected to the first linking rod. The second pivoting guiding member is pivotally connected to the second linking rod. The two ends of the guiding screw are respectively screwed to the first pivoting guide and the a second pivoting guide. The adjusting nut is fixed to a central portion of the lead screw for rotating the lead screw to adjust the distance between the first connecting guide and the second pivoting guide. The object of the present invention and solving the technical problems thereof can be further realized by the following technical measures. In the control valve, the lead screw may have a threaded portion and a reverse threaded portion respectively screwed into the first pivoting guide and the second pivoting guide. 6 201013352 In the aforementioned balanced manner In the water control valve, the water level upper limit adjusting mechanism may further include a first limit nut and a second limit nut, the first limit nut being screwed to the smooth portion of the lead screw and Located between the first pivoting guide and the adjusting nut, the second limiting nut is screwed to the reverse threaded portion of the lead screw and located between the second pivoting guide and the adjusting nut In the foregoing balanced water inlet control valve, the valve system may be composed of an upper valve body and a lower valve body for assembling and accommodating the valve stem. In the aforementioned balanced water inlet control valve, the first A linkage rod is pivotally connected to the lower valve body, and the second linkage rod is pivotally connected to the upper valve block. The valve stem can have a linkage hole for the first linkage rod to pass through. In the balanced water inlet control valve, the first linkage rod can be disposed between the pivot point connecting the lower valve body and the pivot point connecting the first pivot guide. . In the above-mentioned balanced water inlet control valve, the first linkage rod is pivotally connected to a first position of the lower valve body, and the second linkage rod is pivotally connected to a second position of the lower valve body. The valve stem has a linkage hole for the first linkage rod to pass through. In the above-mentioned balanced water inlet control valve, the first linkage rod may be formed as a dialing hole with respect to the end of the pivotal connection point connecting the first splicing guide member to be inserted into the linkage hole. In the above-mentioned balanced water inlet control valve, the pivoting point of the first linkage rod connected to the lower valve body may be located at the portion through which the linkage hole is inserted and connected to the first pivoting guide. Between the box joints. 7 201013352 In the foregoing balance or ice, type water inlet control valve, the periphery of the upper valve body may be provided with a plurality of first 诵 系, and a plurality of first through holes are arranged around the 〇 lower valve body 'An additional plurality of bolts are disposed through the first through holes and the second through holes' to mechanically bond the upper valve body and the lower body. In the above-mentioned balanced water inlet control valve, the bottom of the upper valve body may be formed with an external thread, and further comprises a force ring containing a cap ring, which is screwed to the external valve thread to press the lower valve body. The float system can be a float. , the first pivotal guide and

❹ In the aforementioned balanced inlet control valve, in the aforementioned balanced inlet control valve, the second splicing guide is a U-shaped plate. The balanced water inlet control of the present invention can be seen from the above technical solution, and has the following advantages and effects: by screwing the two ends of the lead screw to the first pivoting guide and the second pivoting guide respectively, The length of the water level upper limit adjustment mechanism is retractable and controlled, so that the second linkage rod connecting the floating body will have different angles at the upper limit of the water level, thereby the position of the water level upper limit (full water level) can be changed or adjusted after installation. The effect of controlling the maximum storage capacity is achieved. 2. The cap body is combined with the valve body and the lower valve body above the valve body, and the external tool is not required, and the assembly and/or disassembly is convenient. [Embodiment] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are to be regarded as a schematic representation of the Optional specific 8 201013352 design 'to provide a clearer description. In the equivalent of different applications, the shape and size of the component can be ^ ^ ^ 4 enemy or simplified. According to a first embodiment of the present invention, a flat valve is exemplified in the side view of the component of Fig. 1 which is disassembled and the stomach is not intended to be in a low water level. The balanced water inlet control unit 胄1, 〇〇 mainly comprises a valve body 110, a reading rod 120, a first linkage rod 13〇, a second linkage rod 140, a floating body 150 and a water level upper limit adjusting mechanism 160. The valve body 110 has a first-class track m (as shown in FIG. 2) to

Like the water supply liquid passes through and flows out of the valve body 110. In one embodiment, the valve body 110 can be comprised of an upper valve body 112 and a lower valve body U3 for assembly to receive the valve stem 120. The upper valve body 112 has a water inlet 117 into which the water supply liquid flows. The lower valve body 113 has a plurality of water outlets (not labeled) for discharging the water supply liquid. Generally, the material of the valve body 110 can be plastic to reduce manufacturing cost and reduce weight. Specifically, as shown in FIG. 1 , a plurality of first through holes 114 may be disposed around the lip of the upper valve body 112 , and a plurality of second passes are disposed around the ring lip of the lower valve body 113 . Hole 115. The balanced inlet control valve 100 can further include a plurality of bolts 181 through the first through holes 114 and the second through holes 115 to mechanically join the upper valve body 112 and the lower valve body 113. . More specifically, a plurality of locking nuts 182 are threaded to the corresponding bolts 181 to closely engage the upper valve body 112 with the lower body 113 (as shown in Fig. 2). Referring to Figures 2 and 3, the valve stem 120 is movably disposed in the valve body 110. The valve stem 120 has a valve plug I21' for blocking the flow passage of the valve body 110 with 201013352. 111 to achieve the effect of stopping water. Preferably, the valve plug 121 can have a rubber crucible material and has elasticity to tightly seal the flow passage 111 to prevent leakage of water and liquid. When the valve stem 120 moves downward, the valve plug 12 1 and The flow path 111 forms a gap 'the liquid will flow from the gap and flow out to the lower valve body 113' to allow water to enter (as indicated by the arrow in Fig. 2). Therefore, the lifting and lowering movement of the valve stem in the valve body 110 can perform an operation of water inlet or water stop. © Please refer to FIG. 2, the first linkage rod 130 is pivotally connected to the valve body 110 for driving the valve stem 120. Referring to FIGS. 1 and 2, the first linkage rod 130 has a first pivot point 131. The first pivot point 131 and the pivot hole 116 of the valve body 110 can be pierced by a shaft 133. The first linkage rod 130 is pivotally connected to the valve body 11〇. In the embodiment, the pivoting hole 116 is disposed in the lower valve body 113, so that the first linkage rod 130 is pivotally connected to the lower valve body 113. The first linkage rod 130 can have a second pivot point 132 and is pivoted to the water level upper limit adjustment mechanism 16 by another shaft (not shown). One end (lower end). The first pivot point 131 and the second stick contact 132 are respectively located at two ends of the first linkage rod 130, and the pole contacts 131, 132 are rotatable. Referring to Figure 2, the second linkage rod 140 is coupled to the valve 110. In this embodiment, the second linkage rod 140 has a third pole contact 141 and is pivotally connected to the valve by a shaft (not shown). The upper valve body 112 of the body 110. Referring to FIGS. 1 and 2, the second linkage rod 14 〇 further has a 10th 201013352 four pivot joint 142, and the fourth pivot joint 142 can be inserted through the other shaft 144 and the water level upper limit adjustment. The mechanism 16 is connected to the hole 163 to pivotally connect the second linkage rod 140 to the other end (upper end) of the water level upper limit adjustment mechanism 16 . Specifically, the second linkage rod 14A further has a connecting end 143 for connecting the floating body post 151 of the floating body 15〇. The fourth pivot point 142 is located at the first pivot point 131 and the connecting end 143.

Between the two, the principle of leverage is saved. In this embodiment, the second linkage rod 140 can be a flat-shaped flat bar. Referring to the figures f 1 and 2, the floating boat 15 is connected to the second linkage rod 140, wherein the floating body 15 can be fixedly connected to a floating body post 15A and then connected by the floating body. The rod 151 is screwed to the connecting end M3 of the second linking rod 14〇, and the utility model can be modularized and disassembled. In the present embodiment, the floating raft 150 can be a float. The second and the two ends of the buckwheat are respectively connected to the first linkage rod 130 and the second link "〇' so that the second linkage rod 14 can pass the water level: The first linkage rod 13〇β is referred to in FIG. 2 at the low water level, the floating body 150 is suspended by its own gravity, and the connecting end 143 of the second linkage rod 140 generates a pulling force and is The water level upper limit adjusting mechanism 16G drives the first-linking rod (1) to rotate, so that the balanced water inlet control 12 〇(10) is lowered, and the water is in a state of being ingested. When the water level upper limit H1 is reached, the floating body 15 〇 is lifted up by the buoyancy of the water rise and generates an upward thrust to the second linkage rod quot 201013352 joint end 143, and the water level upper limit adjustment mechanism 160 The first linkage rod 13〇 is driven, and the flow passage 111 is closed by the valve plug i2i to make the balanced inlet water control valve 1 止 reach a water stop state. Referring to FIG. 1 , the water level upper limit adjustment mechanism is shown in FIG. 1 . The 16-axis includes a first pivoting guide 161 and a second pivoting guide 162. a lead screw 17〇 and an adjusting nut 171. The first pivoting guide 161 is pivotally connected to the first connecting rod 13〇β, and the second connecting guiding member 162 is pivotally connected to the second interlocking member In the embodiment, the first pivoting guide 161 and the second pivoting guide 162 are U-shaped plates for arranging the first linkage rod 130 and the first linkage rod In addition, as shown in FIG. 2, the first linkage rod 130 is pivotally connected to the lower valve body 113, and the second linkage rod 140 is pivotally connected to the upper valve body 112. There may be an interlocking hole 122 for the first linkage rod 13 to pass through to drive the linear movement of the valve stem 120 to perform water inlet or water stop operation (such as the first linkage shown in FIG. 2) The rod 130 is disposed between the first contact point 131 connecting the lower valve body U3 and the second pivot point 132 connected to the first pivotal guide 161, and also constitutes a rod 130 It is labor-saving but can tightly close the leverage of the flow channel i丨1 with the valve plug 1 2 1 . Referring to FIG. 1 , the two ends of the lead screw 170 are respectively screwed to the first pivot guide. 161 and the second The guiding member 162. Specifically, the first connecting guiding member 161 and the second pivoting guiding member 162 can have a short internal thread (not shown) for the guiding screw 170 to be screwed. As shown in FIG. 2 , the adjustment hood 171 is fixed to a central portion of the lead screw 170 for rotating the guide screw 170 12 201013352 弋 adjusting the first pivot guide 161 and the The distance between the second pivot guides 162. In other words, the lead screw 17 can be rotated to adjust the telescopic length of the water level upper limit adjustment mechanism 160. The lead screw 170 can have a threaded portion 172 and a reverse thread portion I73. The internal threads of the first pivotal guide 161 and the internal threads of the second pivotal guide 162 are respectively screwed to allow the two ends of the lead screw 17 to be simultaneously screwed to the first pivotal guide. The piece 161 and the second pivot guide 〇I62. The first pivoting guide 161 and the first pivoting guide 161 can be adjusted by rotating the lead screw 170 to drive the first connecting guide 161 and the second pivoting guiding member 162 to be close to each other or away from each other. The distance between the two pivoting guides 162 is such that the length of the water level upper limit adjusting mechanism 16 is telescopically controlled. Preferably, as shown in FIG. 2, the water level upper limit adjustment mechanism 160 may further include a first limit nut ι74 and a second limit nut 175. The first limit nut 174 is screwed. The threaded portion 172 of the lead screw 17 并可 is rotatably movable between the first splicing guide 161 and the adjusting nut 171, and the second limiting nut i 75 is screwed to The reverse threaded portion 173 of the lead screw 170 is rotatably movable between the second pivoting guide 162 and the adjusting nut 171. When the first limiting nut 174 is in close contact with the first pivoting guide The member 161 and the second limiting nut 17 are in close contact with the second pivoting guide 162 to limit the distance between the first splicing guide 161 and the second pivoting member 162. To avoid loose displacement. Please refer to Figures 3 and 4, if you want to raise the water level upper limit hi to Η2, you can turn the adjustment nut 171 to increase the first pivotal guide ι61 13 201013352 # between the second pivot guide # 162 The distance thereby raises the riseable height of the floating body 150 and raises the upper limit m of the original water level to the adjusted upper limit H2 of the water level, thereby increasing the maximum storage capacity of the water storage or liquid storage device. On the contrary, when the upper limit of the water level is to be lowered, the adjusting nut 1 71 is rotated to shorten the distance between the first pivoting guide 161 and the second connecting guide 162, so that the floating body 15 can be lowered. Raise the height and lower the upper limit of the water level to reduce the maximum storage capacity of the water storage or liquid storage equipment. Therefore, the length of the water level upper limit adjusting mechanism 16 is retractable and controlled by the two ends of the guiding screw 17 螺 being respectively screwed to the first pivoting guide 161 and the second connecting guide 162. The second linkage rod 140 connecting the floating body 150 may have different angles at the upper limit of the water level, thereby adjusting or changing the position of the upper limit of the water level according to the user's needs after installation and achieving the effect of controlling the maximum storage amount. The specific actuation mechanism of the balanced intake control valve 100 is as follows. ❹ The above balanced inlet control valve 100 can be combined with a water storage or liquid storage to be stored inside. The balanced inlet control room (10) of this embodiment is more suitable for shallow water levels, such as a cooling water tower or a high water tank. Referring to Figure 2, from the beginning, the water storage or liquid storage equipment is at a low water level L, when the water surface has not yet reached the floating body 150. Under the action of gravity, the second linkage rod 140 is connected to the floating body 15 and one end of the floating body 15 is lowered downward, and the water level upper limit adjusting mechanism 16 is lowered and moved to drive the first linkage rod 130, and the first linkage rod 130 is further The valve stem 120 and its valve plug 121 are moved linearly downward, and the water liquid enters the 14 201013352 through the water inlet 117 and passes through the flow passage 111 to present a water inlet state, so that the water level can continuously rise. Referring to FIG. 3, when the water level rises to reach the upper limit H1 of the water level, the floating body 150 that interlocks the second linkage rod 140 will be pushed to a height by the buoyancy of the upper limit H1 of the water level, so that the second linkage rod 14〇 The connecting end 143 connected to the floating body 150 moves up, and the rotation of the second interlocking lever 140 drives the water level upper limit adjusting mechanism 160 to move upward, thereby driving the first interlocking lever 130. The first linkage rod 130 drives the valve stem 120 and its valve plug 121 to move linearly upward, and closes the flow passage 111 with the valve plug 121 to bring the balanced inlet water control valve 1 to a water stop state. Specifically, as shown in Fig. 4, when the user sets the upper limit of the water level to H2, the upper limit of the water level can be adjusted by the water level upper limit adjusting mechanism ι6 to regulate the maximum storage amount of a water storage or liquid storage device. Referring to FIGS. 3 and 4, the adjusting nut ι 71 is rotated and the threaded portion 172 and the reverse thread portion 173 of the lead screw 170 are used to cause the first 柩® guiding member 161 and the second pivoting guide. The pieces 162 are respectively moved away from the adjusting nut 71 to increase the distance between the first pivoting guide ι 61 and the second receiving guide 126, thereby raising the hoisting height of the floating body 150. (High water limit H2) to increase the maximum storage capacity of water storage or liquid storage equipment. When the water level has not moved the floating body 150 to the adjusted riseable height, the second linkage rod 140 does not drive the first linkage rod 130' and does not drive the valve stem 120 and its valve plug 121 to rise. In order to keep the balanced inlet control valve 1 进 in the water inlet state. Referring to FIG. 4, when the floating body 150 is pushed by the buoyancy of the water level upper limit H2 15 201013352 to the adjusted riseable height, the second linkage rod I40 is driven to drive the first linkage rod 130, and The balanced water inlet control valve 100 is brought to a water state. Conversely, when it is desired to reduce the maximum storage capacity of the water storage or liquid storage device, the first pivoting guide 161 and the second splicing guide may be along the lead screw by rotating the adjusting nut m' The threaded portion 172 and the reverse threaded portion 173 move in the direction of the adjusting nut 171 to shorten the distance between the first pivoting guide and the second pivoting guide 162 to make the floating body Displacement to the appropriate temperature to reduce the upper limit of the water level to obtain a suitable maximum storage capacity. Therefore, the two ends of the lead screw 17() are respectively screwed to the first stick guide #161 and the second pivotal connection. The guiding member 162 causes the length of the water level upper limit adjusting mechanism 16G to be telescopically controlled, so that the first connecting rod 14 connected to the floating body 150 has different angles at the upper limit of the water level, and further makes the floating body 150 have different Can rise in height, thereby

After installation, the user can change or adjust the water level upper limit to set between H1 and H2 or other positions to regulate the maximum storage capacity of the water storage or liquid storage device. In accordance with a second embodiment of the present invention, another balanced inlet control valve is illustrated in Figure 5, a schematic exploded view of the components. The balanced inlet control valve 200 mainly includes a valve body 11〇, a valve stem 12〇, a first linkage rod 13〇, a second linkage rod 14〇, a floating body and a water level upper limit adjustment mechanism 160, wherein Tan The water level upper limit adjustment mechanism 160 includes a first pivot guide 161, a second pivot guide 1, a lead screw 170, and an adjustment screw 171. The same main elements as in the first embodiment 16 201013352 will be denoted by the same symbols of π μ k, so that the above effects can be understood and will not be described again. a Refer to Figures 6 and 7 for the same. μ - ^ , the valve stem 120 is movably disposed in the valve vessel 110. The closing lever 120 has a valve plug i 21 for blocking the valve body. The flow of 110 is directed to the water inlet state of the balanced inlet control valve 200. The first pivoting point 131 of the first _ linkage rod 130 and the second pivoting point 1 32 are divided into 2|, and the knives are pivotally connected to the valve body 1 i 〇 and the water level upper limit adjusting mechanism 160 ′ The first linkage rod 130 is used to drive the valve stem 120. One part of the second interlocking furnace ^ 1 40 is pivotally connected to the valve body 110, and one end of the second linkage rod 44 40 is pivotally connected to the water level upper limit adjusting mechanism 160, wherein the first mate is connected to the 柃 140 The connecting end 143 is connected to the floating body 150, and the second connecting rod 140 must be driven by the ocean body 150. In this embodiment, the first linkage rod 140 may be in the shape of a chevron or a V-shape to have better bending resistance than the temple. In the present embodiment, as shown in Fig. 6, the water level upper limit adjusting mechanism 16 is disposed on the same side as the water inlet 117.兮λ_^ «The inlet 117 can be changed to a larger aperture. The floating body 150 can be changed to a larger volume. The balanced inlet control valve 200 can be used for long strokes. As shown in Figures 5 and 6, the force; the apricot ^ in this embodiment, the first linkage rod 130 is pivotally connected to the lower valve. < a first position 213, the second linkage rod 140 The system is connected to a second position 213 卩 of the inter-body 113. The valve stem 120 has a 虿 linkage hole 122 for the first linkage rod 130 to pass through. Specifically, the younger brother--the one of the second pivot joints 132 of the linkage rod 130 is shaped as a lever 233, and the line 17 201013352 is worn on the linkage The operation of the hole 122 is used to drive the water, and the operation of the valve #120 is linearly moved into the water or stopped (such as the preferred form of the lever 233 and the figure 7). . The show, in this real... arc. Referring to the embodiment of the ear in Figure 6, the first watch Μ 113 μ k is connected to the lower end of the connector 122 at the end of the connecting hole (ie, the lever 233). # 161 ^ Μ - ^ The working chamber is connected to the first pivotal joint between the first pivotal point 1 3 2, and the rabbit is used as a lever fulcrum. Wherein the first position 2UA is located in the whistle _ from the inside of the goods located above the first position 2 1 3 ,, the second position 213 Β can be a minute „ _ from ^ to the downward extension of the lug, so the The pivotal position of the first linkage rod 130 is higher than the pivotal position of the second linkage rod 140. Referring to Fig. 6, when the water storage or liquid storage device is at a low water level L, the floating raft 15〇 is moved downward to drive the second linkage rod 140 to rotate, and the water level upper limit adjusting mechanism 16 is moved upward to drive the first linkage rod 13 to rotate, so the first linkage rod 13〇❿ drives the valve The rod 1 2 〇 and its valve plug 121 move straight downward, and the water liquid enters through the flow passage 111 and assumes a water inlet state, so that the water level can continuously rise. 凊 Referring to Fig. 7, when the water level rises to reach the upper limit of the water level. When the second linking rod 14 is interlocked, the floating body 150 is pushed to a height by the buoyancy of the upper limit of the water level Η1, so that the second connecting rod ι4 is connected to the connecting end 143 of the floating body 150, and the first The rotation of the second linkage rod 140 drives the water level upper limit adjustment mechanism 160 to move downward. The first linkage rod 130 is further driven. The first linkage rod 130 drives the valve rod ι2 〇 and its valve plug 121 to move linearly upward, and the valve plug 121 closes the flow 201013352 channel m to make the balanced water inlet. The control valve ι 〇〇 reaches the water stop state. As in the first embodiment, when the user wants to adjust to increase the maximum storage amount, the water level upper limit adjustment mechanism 16G can be adjusted by rotating the guide screw #17〇. The retractable length, for example, increases the upper limit of the heart mechanism! The heart length can raise the upper limit of the water level (full water level) to increase the maximum storage capacity of the water storage or liquid storage device.

According to a third embodiment of the present invention, another balanced inlet control valve is illustrated in an exploded perspective view of the eighth embodiment and a partial side view of the ninth diagram. The balanced inlet control valve 3〇〇 mainly comprises a valve body U0, a valve stem 12〇, a first linkage #13〇, a second linkage rod 14〇, a floating body 150 and a water level upper limit adjustment mechanism 160. . The same elements as those in the first embodiment will be denoted by the same reference numerals and will not be described again. Referring to FIGS. 8 and 9, the valve stem 12 is movably disposed in the valve body 110 for blocking the valve body 11 〇 to reach the water stop state of the first linkage rod 130. The valve body 11〇 and the water level upper limit adjusting mechanism 160 are respectively pivoted. The second linkage rod 14 is pivotally connected to the valve body 110, and one end of the second linkage rod 140 is connected to the floating body 150, and the other end is coupled to the water level upper limit adjustment mechanism 16A. The water level upper limit adjusting mechanism 160 adjusts the rotation of the lead screw 17 so that the length of the water level upper limit adjusting mechanism 16 is retractable and controlled. In this embodiment, the outer portion of the upper valve body 112 of the valve body 110 may be formed with an external thread 318, and the balanced inlet control valve 19 201013352 ❹ m 300 further includes a cap ring 390, the cap ring 39〇 is screwed to the external thread 218 of the upper valve body 112 to press the lower valve body ΐ3 of the valve body 11 to tightly bond the upper valve body 112 and the lower valve body U3 without using an external tool. Such as a screwdriver, it is easy to assemble or / and. effect. The above is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. The scope of the present invention is defined by the scope of the appended claims. Any person skilled in the art can use the technical content disclosed above to make some modifications or modifications to the equivalent embodiments, but without departing from the technical solution of the present invention: 'The above implementation according to the technical essence of the present invention The modifications, equivalent changes and modifications made by the examples are still within the scope of the technical scope of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS Fig. is an exploded perspective view showing the components of a valve according to a first embodiment of the present invention. A side view of a valve in a low water level in accordance with a first embodiment of the present invention. According to a first embodiment of the present invention, a side view of the upper limit H1 of the water level is schematically shown on the side of the upper limit H2 of the water level according to the first embodiment of the present invention. An exploded perspective view of an element of a balanced inlet control valve in accordance with a first embodiment of the present invention. Fig. 4 Fig. 5 圏 A balanced inlet control The balanced inlet control The balanced inlet control 20

❹ L Low water level 201013352 Fig. 6: A side view of the valve at a low water level in accordance with a second embodiment of the present invention. Figure 7 is a schematic view of the valve according to the second embodiment of the present invention on the side of the upper limit H1 of the water level | Fig. 8 is an exploded perspective view of the third embodiment of the control valve according to the present invention. A partial side view of the valve of the third embodiment. [Main component symbol description] H1 water level upper limit 1〇〇 balanced intake water control valve 110 valve body 111 flow path 113 T valve body 114 first through hole 116 pivot hole 117 water inlet 120 valve stem 121 valve plug 130 first linkage Rod 131 first pivot point 133 shaft 140 second linkage rod 141 third pivot point 143 joint end 144 shaft 150 floating body 151 floating body post 160 water level upper limit adjustment mechanism

Ml first pivotal guide 162 second pivoting guide 170 lead screw 171 adjusts the nut 173 reverse threaded portion 174 first limit nut, the balanced water inlet control 'the balanced water inlet control 3 〇, another Balanced water inlet The balanced water inlet control H2 water level upper limit 112 upper valve body 115 second through hole 122 linkage hole 13 2 second pivot point 142 fourth joint 163 柩 joint 172 threaded portion 175 second Limit nut 21 201013352 181 bolt 182 locking nut 200 balanced inlet control valve 213A first position 213B second position 233 lever 300 balanced inlet control valve 318 external thread 390 cap ring

twenty two

Claims (1)

201013352 X. Applying for patents: !, a balanced inlet control valve, comprising: a valve 髅 ' has a first-class track; a valve stem is movably disposed in the valve body, the valve stem has a valve a plug is used to block the flow passage of the valve body; a first linkage rod is pivotally connected to the valve body for driving the valve stem; and a second linkage rod is pivotally connected to the valve body; The body is connected to the second linkage rod; and a water level upper limit adjustment mechanism includes: a first pivot guide that is pivotally connected to the first linkage rod; and a second pivot guide a pivoting rod is coupled to the second linkage rod; a lead screw is respectively screwed to the first pivoting guide and the second pivoting guide; and an adjusting nut is fixed to the lead screw And a central portion for adjusting a distance between the first pivotal guide and the second pivotal guide by rotating the lead screw. 2. The balanced inlet control valve according to claim i, wherein the lead screw has a - snail, a groove and a reverse thread to be screwed to the first pivot guide and The second pivotal guide. 3. The balanced water inlet control valve according to claim 2, wherein the water level upper limit adjusting mechanism further comprises a first limit nut and a second limit nut, the first limit nut The threaded portion of the lead screw is screwed between the first rod guide and the adjusting nut, and the second limit nut is screwed to the reverse thread portion of the lead screw The second 抠 23 201013352 is between the guiding member and the adjusting nut. 4. For example, the patented scope i-balanced inlet_valve, wherein the valve system is supported by an upper valve body. The damper body is composed of a balanced water inlet control valve as described in claim 4, wherein the first linkage rod is pivotally connected to the lower valve body, and the second linkage rod is pivotally connected. Reference In the upper valve body, the valve stem has an interlocking hole for the first linkage rod to pass through. 6. The balanced inlet control valve according to claim 5, wherein the first linkage rod is threaded through the first pivotal connection at the tow point connecting the lower valve body to the connection Between the pivot points of the pieces. 7. The balanced inlet control valve according to claim 4, wherein the first linkage rod is connected to a first position of the lower valve, the second linkage rod is pivotally connected to the valve body In one of the second positions, the valve stem has a linkage hole for the first linkage rod to pass through. 8. The balanced inlet control valve according to claim 7, wherein the first linkage rod is formed as a lever with respect to one end of the pivotal connection point connecting the first pivotal guide. To be worn in the linkage hole. 9. The balanced inlet control valve according to claim 7, wherein the first linkage rod is located at the pivoting point connecting the lower valve body at the portion through which the linkage hole is inserted and connected thereto. Between the pivotal points of the first pivotal guide. 10. The balanced inlet control valve according to claim 4, wherein the upper valve body is provided with a plurality of first through holes, and the lower valve body is provided with a plurality of (four) two The through hole further includes a plurality of threaded inspections, and the first through holes and the second through holes are bored to mechanically bond the upper valve body and the lower valve body. 11. The balanced inlet control valve of claim 4, wherein an outer thread is formed around the bottom of the upper valve body, and a cap ring is included to thread the outer body of the upper valve body. To press the lower valve body. The balanced inlet control valve according to claim 1, wherein the floating vessel is a float in φ. The balanced water inlet control room according to claim 1, wherein the first pivoting guide and the second pivoting guide are U-shaped plates. 25