Water pressure balancing device

Abstract

The utility model discloses a water pressure balancing device which comprises two groups of water pressure adjusting mechanisms and two groups of output mechanisms, each water pressure adjusting mechanism comprises a valve body and a valve rod, the valve body is provided with a water delivery channel, a first connecting port and a second connecting port, the valve rod is connected to the valve body in a sliding mode, and the two ends of the valve rod extend into the first connecting port and the second connecting port respectively. An annular throttling block is arranged on the inner wall of the water conveying channel, the valve rod is provided with an adjusting block, and the adjusting block can be matched with the opening degree of the annular throttling block. The output mechanisms are in one-to-one correspondence with the water pressure adjusting mechanisms and comprise water conveying pieces, loads and water conveying pipes, the water conveying pieces are connected with the water inlet ends of the water conveying channels, the loads are connected with the water outlet ends of the water conveying channels through the water conveying pipes, and the water conveying pipes are connected with first connecting pipes and second connecting pipes; and the second connecting pipe is communicated with the second connecting port of the other group of water pressure adjusting mechanism. And the conveying water pressure between the double loads can be balanced, so that the synchronous execution force of the double loads is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water pressure regulating equipment, in particular to a water pressure balancing device. Background Art

[0002] In a dual-load synchronous output system, in order to ensure that each load (such as a hydraulic cylinder, a hydraulic motor, etc.) has a large output force, two water supply components are usually configured to supply water and pressure to the loads respectively. Therefore, during the water supply process, the water pressure output to the two loads is prone to differences, resulting in inconsistent output forces of the two loads, thereby reducing the synchronous execution force of the dual loads. Utility Model Content

[0003] The utility model aims to solve one of the technical problems in the related art at least to a certain extent. To this end, the utility model provides a water pressure balancing device, which can balance the delivery water pressure between two loads, thereby improving the synchronous execution force of the two loads.

[0004] According to an embodiment of the utility model, a water pressure balancing device is provided, comprising two groups of water pressure regulating mechanisms and two groups of output mechanisms, wherein the water pressure regulating mechanism comprises a valve body and a valve stem, wherein the valve body is provided with a water delivery channel, a first connection port and a second connection port, wherein the valve stem is slidably connected to the valve body, and the two ends of the valve stem extend into the first connection port and the second connection port respectively, wherein the inner wall of the water delivery channel is provided with an annular throttling block protruding radially, and the valve stem is provided with an adjusting block, wherein the adjusting block can cooperate with the opening of the annular throttling block to adjust the water pressure at the water outlet of the water delivery channel; wherein the output mechanism corresponds to the water pressure regulating mechanism in a one-to-one manner, wherein the output mechanism comprises a water delivery member, a load and a water delivery pipe, wherein the water delivery member is used to deliver water to the load, wherein the water delivery member is connected to the water inlet end of the water delivery channel, wherein the load is connected to the water outlet end of the water delivery channel through the water delivery pipe, wherein the water delivery pipe is connected to a first connecting pipe and a second connecting pipe, wherein the first connecting pipe is connected to the first connecting port, and the second connecting pipe is connected to the second connecting port of another group of the water pressure regulating mechanisms.

[0005] A water pressure balancing device according to an embodiment of the utility model has at least the following beneficial effects: when started, two water delivery parts deliver water to the load respectively, and the water output by the water delivery parts of one group of output mechanisms is delivered to the load through the water delivery channel and the water delivery pipe, and at the same time, the water in the water delivery pipe flows into the first connecting port through the first connecting pipe, exerting pressure on one end of the valve stem, and the water in the water delivery pipe of the other group of output mechanisms flows into the second connecting port through the second connecting pipe, exerting pressure on the other end of the valve stem, when the pressure on the end of the valve stem close to the first connecting port is greater than the pressure on the end of the valve stem close to the second connecting port, the resulting pressure difference will drive the valve stem to slide, and drive the regulating block to move in the direction close to the annular throttling block, thereby reducing the opening between the regulating block and the annular throttling block. degree, increasing the water flow resistance, thereby reducing the water pressure at the water outlet end of the water delivery channel and the water delivery pipe until the water pressure in the two water delivery pipes is balanced. When the pressure on the end of the valve stem close to the first connection port is less than the pressure on the end of the valve stem close to the second connection port, the resulting pressure difference will drive the valve stem to drive the regulating block to move away from the annular throttling block until the regulating block and the annular throttling block can no longer cooperate to open to reduce the water pressure, so that the water pressure on both sides of the annular throttling block is equal. Through the cooperation of the two water pressure regulating mechanisms, the water pressure of the water delivery pipe with a larger water pressure can be automatically reduced to be equal to the water pressure of the water delivery pipe with a smaller water pressure, thereby achieving a water pressure balance between the two loads, thereby improving the synchronous execution force of the dual loads.

[0006] According to some embodiments of the utility model, the annular throttling block is coaxially arranged with the adjusting block, the through hole of the annular throttling block is arranged to be conical, and the diameter of the through hole gradually decreases in the axial direction away from the adjusting block, and the side wall shape of the adjusting block matches the shape of the through hole.

[0007] According to some embodiments of the utility model, the valve body is provided with an adjusting cavity, the adjusting cavity is connected to the water supply channel, the adjusting block is located in the adjusting cavity, the adjusting cavity is inserted with a mounting block, the first connecting port is arranged on the mounting block, and one end of the valve stem is slidably connected to the mounting block.

[0008] According to some embodiments of the utility model, the mounting block is provided with a first guide hole, and the valve body is provided with a second guide hole, the first guide hole is connected to the first connecting port, and the second guide hole is connected to the second connecting port, the first guide hole and the second guide hole are both arranged along the axial direction of the annular throttling block, and the two ends of the valve stem are respectively slidably connected to the first guide hole and the second guide hole.

[0009] According to some embodiments of the utility model, the valve stem is provided with three guide segments and two support segments, the support segment is arranged between two adjacent guide segments, and the diameter of the support segment is smaller than the diameter of the guide segment.

[0010] According to some embodiments of the present invention, the valve stem is provided with a limit block, and the limit block can abut against the mounting block to limit the movement of the valve stem in a direction approaching the first connecting port.

[0011] According to some embodiments of the utility model, a first positioning groove is formed in the guide section close to the first connecting port, a first sealing ring is clamped in the first positioning groove, and the first sealing ring abuts against the guide section and the mounting block respectively.

[0012] According to some embodiments of the utility model, a second positioning groove is formed in the guide section close to the second connecting port, a second sealing ring is clamped in the second positioning groove, and the second sealing ring abuts against the guide section and the valve body respectively.

[0013] According to some embodiments of the utility model, a third positioning groove is formed on the outer wall of the mounting block, a third sealing ring is clamped in the third positioning groove, and the third sealing ring abuts against the valve body and the mounting block respectively.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0016] Figure 1 is a cross-sectional view of a water pressure regulating mechanism of a water pressure balancing device according to an embodiment of the utility model;

[0017] Figure 2 It is a structural schematic diagram of a water pressure balancing device according to an embodiment of the utility model;

[0018] Figure 3 yes Figure 1 A partial enlarged view of point A in the middle.

[0019] Description of reference numerals:

[0020] Water pressure regulating mechanism 100, valve body 110, first connecting port 111, second connecting port 112, annular throttling block 113, through hole 114, regulating chamber 115, mounting block 116, first guide hole 117, second guide hole 118, third positioning groove 119, water delivery channel 120, water inlet end 121, water outlet end 122, valve stem 130, regulating block 131, guide section 132, support section 133, limit block 134, first positioning groove 135, second positioning groove 136, first sealing ring 140, second sealing ring 150, third sealing ring 160;

[0021] The output mechanism 200 , the water delivery member 210 , the load 220 , the water delivery pipe 230 , the first connecting pipe 240 , and the second connecting pipe 250 . DETAILED DESCRIPTION

[0022] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0023] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0025] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0026] It is understandable that, referring to Figures 1 to 3The utility model provides a water pressure balancing device, comprising two groups of water pressure regulating mechanisms 100 and two groups of output mechanisms 200. The water pressure regulating mechanism 100 comprises a valve body 110 and a valve stem 130. The valve body 110 is provided with a water delivery channel 120, a first connection port 111 and a second connection port 112. The valve stem 130 is slidably connected to the valve body 110, and the two ends of the valve stem 130 extend into the first connection port 111 and the second connection port 112 respectively. The inner wall of the water delivery channel 120 is provided with an annular throttling block 113 protruding radially. The valve stem 130 is provided with an adjusting block 131. The adjusting block 131 can cooperate with the opening of the annular throttling block 113 to adjust the water delivery channel 120. The water pressure at the water outlet 122 of the channel 120; the output mechanism 200 corresponds one-to-one to the water pressure regulating mechanism 100, the output mechanism 200 includes a water delivery member 210, a load 220 and a water delivery pipe 230, the water delivery member 210 is used to deliver water to the load 220, the water delivery member 210 is connected to the water inlet 121 of the water delivery channel 120, the load 220 is connected to the water outlet 122 of the water delivery channel 120 through the water delivery pipe 230, the water delivery pipe 230 is connected to the first connecting pipe 240 and the second connecting pipe 250, the first connecting pipe 240 is connected to the first connecting port 111, and the second connecting pipe 250 is connected to the second connecting port 112 of another group of water pressure regulating mechanisms 100.

[0027] When started, the two water delivery members 210 deliver water to the load 220 respectively, and the water output by the water delivery member 210 of one group of output mechanisms 200 is delivered to the load 220 through the water delivery channel 120 and the water delivery pipe 230, and at the same time, the water in the water delivery pipe 230 flows into the first connecting port 111 through the first connecting pipe 240, and presses one end of the valve stem 130, while the water in the water delivery pipe 230 of the other group of output mechanisms 200 flows into the second connecting port 112 through the second connecting pipe 250, and presses the other end of the valve stem 130. When the pressure on the end of the valve stem 130 close to the first connecting port 111 is greater than the pressure on the end of the valve stem 130 close to the second connecting port 112, the pressure difference generated will drive the valve stem 130 to slide, and drive the regulating block 131 to move in the direction close to the annular throttling block 113, thereby reducing the opening between the regulating block 131 and the annular throttling block 113 and increasing the water Flow resistance, thereby reducing the water pressure at the water outlet end 122 of the water delivery channel 120 and the water delivery pipe 230, until the water pressure in the two water delivery pipes 230 is balanced. When the pressure on the end of the valve stem 130 close to the first connection port 111 is less than the pressure on the end of the valve stem 130 close to the second connection port 112, the resulting pressure difference will drive the valve stem 130 to drive the regulating block 131 to move away from the annular throttling block 113, until the regulating block 131 and the annular throttling block 113 can no longer produce an opening to cooperate to reduce the water pressure, so that the water pressure on both sides of the annular throttling block 113 is equal. Through the cooperation of the two water pressure regulating mechanisms 100, the water pressure of the water delivery pipe 230 with a larger water pressure can be automatically reduced to be equal to the water pressure of the water delivery pipe 230 with a smaller water pressure, thereby achieving a water pressure balance between the two loads 220, thereby improving the synchronous execution force of the dual loads 220.

[0028] It should be noted that the adjustment block 131 can be coordinated with the opening of the annular throttling block 113, which means that the water pressure at the water outlet end 122 of the water supply channel 120 is adjusted by adjusting the gap between the adjustment block 131 and the annular throttling block 113. The smaller the gap between the adjustment block 131 and the annular throttling block 113, the greater the water flow resistance, the greater the pressure loss, and the smaller the water pressure at the water outlet end 122 of the water supply channel 120.

[0029] Since the pressures at both ends of the valve stem 130 are equal to the water pressures of the two water pipes 230 , the pressure loss value in the water channel 120 is equal to the pressure difference between the two water pipes 230 , so that the water pressures of the two water pipes 230 can be adjusted to be equal.

[0030] The water delivery member 210 may include a water tank and a water pump, and the water pump can drive the water in the water tank to be output to the load 220 .

[0031] It is understandable that, referring to Figure 1The annular throttling block 113 is coaxially arranged with the regulating block 131, the through hole 114 of the annular throttling block 113 is arranged to be conical, and the diameter of the through hole 114 gradually decreases in the axial direction away from the regulating block 131, and the side wall shape of the regulating block 131 matches the shape of the through hole 114. By setting the through hole 114 of the annular throttling block 113 to be conical, and the diameter of the through hole 114 gradually decreases in the axial direction away from the regulating block 131, when the valve stem 130 drives the regulating block 131 to move, the opening between the regulating block 131 and the annular throttling block 113 can be gradually changed, reducing the possibility of water pressure fluctuation during regulation, thereby improving the stability of water pressure regulation, and further improving the synchronous execution force of the dual load 220.

[0032] It is understandable that, referring to Figure 1 The valve body 110 is provided with an adjusting chamber 115, the adjusting chamber 115 is connected to the water delivery channel 120, the adjusting block 131 is located in the adjusting chamber 115, the adjusting chamber 115 is plugged with a mounting block 116, the first connecting port 111 is provided on the mounting block 116, and one end of the valve stem 130 is slidably connected to the mounting block 116. Since the mounting block 116 is plugged into the adjusting chamber 115, the valve stem 130 can be taken out of the adjusting chamber 115 by pulling out the mounting block 116, which is convenient for maintenance and replacement of the valve stem 130, and at the same time, it is convenient for the valve stem 130 to pass through the adjusting chamber 115 and slide and connect to the valve body 110, thereby facilitating the disassembly and assembly of the valve stem 130.

[0033] Specifically, refer to Figure 1 The mounting block 116 is provided with a first guide hole 117, and the valve body 110 is provided with a second guide hole 118. The first guide hole 117 is connected to the first connection port 111, and the second guide hole 118 is connected to the second connection port 112. The first guide hole 117 and the second guide hole 118 are both arranged along the axial direction of the annular throttling block 113, and the two ends of the valve stem 130 are respectively slidably connected to the first guide hole 117 and the second guide hole 118. Since the two ends of the valve stem 130 are respectively slidably connected to the first guide hole 117 and the second guide hole 118, and the first guide hole 117 and the second guide hole 118 are both arranged along the axial direction of the annular throttling block 113, the valve stem 130 is guided to move along the axial direction of the annular throttling block 113 by the first guide hole 117 and the second guide hole 118, which can reduce the radial offset of the valve stem 130 and the adjusting block 131 during the movement, thereby improving the stability of the opening coordination between the adjusting block 131 and the annular throttling block 113, and further improving the stability of water pressure regulation.

[0034] Specifically, refer to Figure 1 and Figure 3The valve stem 130 is divided into three guide sections 132 and two support sections 133. The support section 133 is arranged between two adjacent guide sections 132, and the diameter of the support section 133 is smaller than the diameter of the guide section 132. Since the friction resistance encountered by the valve stem 130 during movement will offset a part of the pressure difference, thereby reducing the sensitivity of water pressure regulation, the diameter of the support section 133 is smaller than the diameter of the guide section 132, so that the support section 133 can be prevented from contacting the wall surface of the first guide hole 117 or the second guide hole 118, so as to reduce the contact area between the valve stem 130 and the first guide hole 117 and the second guide hole 118, thereby reducing the friction resistance encountered by the valve stem 130 during movement, thereby reducing the influence of the friction resistance on pressure regulation, and improving the sensitivity of water pressure regulation.

[0035] Specifically, refer to Figure 1 The valve stem 130 is provided with a limit block 134, which can abut against the mounting block 116 to limit the movement of the valve stem 130 in the direction close to the first connection port 111. By abutting the mounting block 116 with the limit block 134 to limit the movement of the valve stem 130 in the direction close to the first connection port 111, the possibility of the adjustment block 131 colliding with the mounting block 116 when moving in the direction close to the mounting block 116 can be reduced, thereby reducing the possibility of the adjustment block 131 being damaged due to the collision, thereby extending the service life of the adjustment block 131.

[0036] Specifically, refer to Figure 1 and Figure 3 The guide section 132 near the first connection port 111 is provided with a first positioning groove 135, and the first sealing ring 140 is clamped in the first positioning groove 135. The first sealing ring 140 abuts against the guide section 132 and the mounting block 116 respectively. By clamping the first sealing ring 140 in the first positioning groove 135, the possibility of the first sealing ring 140 moving along the axial direction of the valve stem 130 can be reduced, thereby improving the position stability of the first sealing ring 140, and by the first sealing ring 140 abutting against the guide section 132 and the mounting block 116 respectively, the sealing between the guide section 132 and the mounting block 116 can be improved, so as to reduce the possibility of mutual leakage of water in the first connection port 111 and the water transfer channel 120, thereby improving the stability of water pressure regulation.

[0037] Specifically, refer to Figure 1The guide section 132 near the second connection port 112 is provided with a second positioning groove 136, and the second positioning groove 136 is clamped with a second sealing ring 150, and the second sealing ring 150 abuts against the guide section 132 and the valve body 110 respectively. By clamping the second sealing ring 150 in the second positioning groove 136, the possibility of the second sealing ring 150 moving along the axial direction of the valve stem 130 can be reduced, thereby improving the position stability of the second sealing ring 150, and by the second sealing ring 150 abutting against the guide section 132 and the valve body 110 respectively, the sealing between the guide section 132 and the valve body 110 can be improved, so as to reduce the possibility of water in the second connection port 112 and the water transfer channel 120 leaking into each other, thereby improving the stability of water pressure regulation.

[0038] Specifically, refer to Figure 1 and Figure 3 The outer wall of the mounting block 116 is provided with a third positioning groove 119, and the third sealing ring 160 is clamped in the third positioning groove 119. The third sealing ring 160 abuts against the valve body 110 and the mounting block 116 respectively. By clamping the third sealing ring 160 in the third positioning groove 119, the possibility of the third sealing ring 160 moving along the axial direction of the mounting block 116 can be reduced, thereby improving the position stability of the third sealing ring 160, and by the second sealing ring 150 abutting against the valve body 110 and the mounting block 116 respectively, the sealing between the valve body 110 and the mounting block 116 can be improved, so as to reduce the possibility of water leakage in the regulating chamber 115.

[0039] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A water pressure balancing device, characterized in that: include: Two groups of water pressure regulating mechanisms, the water pressure regulating mechanisms include a valve body and a valve stem, the valve body is provided with a water delivery channel, a first connection port and a second connection port, the valve stem is slidably connected to the valve body, and the two ends of the valve stem extend into the first connection port and the second connection port respectively, the inner wall of the water delivery channel is provided with an annular throttling block protruding radially, the valve stem is provided with an adjusting block, and the adjusting block can cooperate with the opening of the annular throttling block to adjust the water pressure at the water outlet end of the water delivery channel; Two groups of output mechanisms, the output mechanisms correspond one to one with the water pressure regulating mechanisms, the output mechanisms include a water delivery member, a load and a water delivery pipe, the water delivery member is used to deliver water to the load, the water delivery member is connected to the water inlet end of the water delivery channel, the load is connected to the water outlet end of the water delivery channel through the water delivery pipe, the water delivery pipe is connected with a first connecting pipe and a second connecting pipe, the first connecting pipe is connected to the first connecting port, and the second connecting pipe is connected to the second connecting port of another group of the water pressure regulating mechanisms.

2. The water pressure balancing device according to claim 1, characterized in that: The annular throttling block is coaxially arranged with the regulating block, the through hole of the annular throttling block is arranged to be conical, and the diameter of the through hole gradually decreases in the axial direction away from the regulating block, and the side wall shape of the regulating block matches the shape of the through hole.

3. The water pressure balancing device according to claim 1, characterized in that: The valve body is provided with a regulating cavity, the regulating cavity is connected to the water delivery channel, the regulating block is located in the regulating cavity, a mounting block is inserted in the regulating cavity, the first connecting port is arranged on the mounting block, and one end of the valve stem is slidably connected to the mounting block.

4. The water pressure balancing device according to claim 3, characterized in that: The mounting block is provided with a first guide hole, and the valve body is provided with a second guide hole, the first guide hole is connected to the first connecting port, and the second guide hole is connected to the second connecting port, the first guide hole and the second guide hole are both arranged along the axial direction of the annular throttling block, and the two ends of the valve stem are respectively slidably connected to the first guide hole and the second guide hole.

5. The water pressure balancing device according to claim 4, characterized in that: The valve stem is divided into three guide sections and two support sections. The support section is arranged between two adjacent guide sections, and the diameter of the support section is smaller than the diameter of the guide section.

6. The water pressure balancing device according to claim 3, characterized in that: The valve stem is provided with a limit block, and the limit block can abut against the mounting block to limit the movement of the valve stem toward the first connecting port.

7. The water pressure balancing device according to claim 5, characterized in that: A first positioning groove is formed in the guide section close to the first connection port. A first sealing ring is clamped in the first positioning groove. The first sealing ring abuts against the guide section and the mounting block respectively.

8. The water pressure balancing device according to claim 5, characterized in that: A second positioning groove is formed in the guide section close to the second connecting port, a second sealing ring is clamped in the second positioning groove, and the second sealing ring abuts against the guide section and the valve body respectively.

9. The water pressure balancing device according to claim 3, characterized in that: The outer wall of the mounting block is provided with a third positioning groove, the third positioning groove is clamped with a third sealing ring, and the third sealing ring abuts against the valve body and the mounting block respectively.

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