VCR valve group detection device
By designing a VCR valve group detection device and adopting a combination of a first pressure valve and a second pressure valve, the problem of non-intuitive VCR valve group pressure detection is solved, and fast and accurate pressure judgment and simultaneous detection of multiple valve groups are achieved.
Patent Information
- Application Number
- CN202510970431.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-15
- Publication Date
- 2025-10-17
AI Technical Summary
The pressure output detection of the VCR valve group in the prior art is not intuitive enough, and it is difficult to quickly and efficiently determine whether the pressure value meets the standard.
A VCR valve group detection device is designed. It adopts the combination of the first pressure valve and the second pressure valve. The pressure value is intuitively judged by observing whether there is oil flowing out of the second and third oil ports, and combined with whether the fourth oil port is blocked to achieve simultaneous detection of multiple VCR valve groups.
It realizes intuitive and rapid pressure detection, improves detection efficiency and accuracy, expands the pressure adjustment range, and ensures the accuracy of pressure values.
Smart Images
Figure CN120800787A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application belongs to the technical field of automatic pollution discharge valves, in particular to a VCR valve group detection device. BACKGROUND
[0002] The VCR valve group needs to have accurate pressure output, so after production, it needs to be detected whether the pressure output value meets the standard. The ordinary pressure detection is only measured by a pressure gauge, and the reading of the pressure gauge needs to be read, which is not intuitive. SUMMARY
[0003] The purpose of the application is to solve the problem of how to intuitively and quickly detect the VCR valve group by adopting the way of setting the first pressure valve and the second pressure valve on the block, designing a VCR valve group detection device, so that when in use, the detected VCR valve group is directly connected to the first oil port on the block, and then it is observed whether the oil flows out of the second oil port and the third oil port to intuitively judge whether the pressure value is sufficient. At the same time, by connecting the measured VCR valve group to the fourth oil port to observe whether the third oil port is blocked, multiple VCR valve groups can be detected at the same time, the detection efficiency is improved, and the problem of how to intuitively and quickly detect the VCR valve group is solved.
[0004] In order to achieve the above purpose, the application adopts the following technical scheme:
[0005] A VCR valve group detection device, comprising a block, wherein the block is provided with a first oil port, a second oil port, a third oil port and a fourth oil port, and the block is provided with a first pressure valve and a second pressure valve inside, the first pressure valve has one input end and two output ends, the input end of the first pressure valve is communicated with the first oil port, one output end of the first pressure valve is communicated with the input end of the second pressure valve, the other output end of the first pressure valve is communicated with the second oil port, the output end of the second pressure valve is communicated with the third oil port, and the second pressure valve is further provided with a closing oil channel for controlling the valve core of the second pressure valve away from the third oil port, and the closing oil channel is communicated with the fourth oil port.
[0006] Preferably, the block is provided with a first valve cavity, the bottom of the first valve cavity is communicated with the first oil port through a first oil path hole, the first oil path hole is arranged in the block, the second oil port is communicated with the first valve cavity at the side wall of the first valve cavity, the block is provided with a first valve core matched with the first valve cavity, the first valve core can airtightly isolate the first valve cavity from the first oil path hole when moving to the bottom of the first valve cavity, and the first valve core can make the first valve cavity communicated with the first oil path hole when leaving the bottom of the first valve cavity.
[0007] Preferably, a second valve cavity is arranged on the block body away from the first valve cavity, the first valve cavity is communicated with the second valve cavity through a second oil passage hole, one end of the second oil passage hole is on the side wall of the first valve cavity, and the other end is on the side wall of the second valve cavity, an expansion cavity is arranged in the block body between the two ends of the second cavity, the expansion cavity is away from the communication position of the second oil passage hole and the second valve cavity, the expansion cavity is communicated with the third oil passage through a third oil passage hole, a second valve core is arranged in the second valve cavity in a matched mode, the second valve core can seal the second valve cavity from the expansion cavity when the second valve core moves to the bottom wall of the second valve cavity, and the second valve core can make the second valve cavity communicate with the expansion cavity when the second valve core is away from the bottom wall of the second valve cavity.
[0008] Preferably, a recess is arranged between the two ends of the side wall of the second valve core, the projection of the recess on the axis of the second valve core is longer than the distance from the expansion cavity to the second oil passage hole.
[0009] Preferably, the closing oil passage is a fourth oil passage hole, and the bottom wall of the second valve cavity is communicated with the fourth oil passage hole through the fourth oil passage hole.
[0010] Preferably, a pressure gauge and a pressure sensor are arranged on the block body away from the first oil passage, the pressure sensor is signal connected with the first valve core, and the pressure sensing value of the pressure sensor is 2.6 bar.
[0011] Preferably, the first valve core is a hollow structure, the bottom of the first valve core is projected on a plane parallel to the axis of the first valve core as a trapezoid, a first through hole is arranged in the middle of the first valve core, a second through hole is arranged on the surface corresponding to the waist of the trapezoid, a cylindrical tube with an open end is coaxially and tightly arranged on the inner bottom of the first valve cavity, the outer wall of the first valve core is in close sliding connection with the inner wall of the cylindrical tube, a third through hole is arranged on the bottom wall of the cylindrical tube and communicated with the first oil passage hole, a plug body is arranged on the bottom surface of the first valve core and matched with the third through hole, when the plug body is matched with the third through hole, the first through hole is located outside the cylindrical tube, and the second through hole is located inside the cylindrical tube.
[0012] The application has the following beneficial effects:
[0013] The present application adopts a method of arranging a first pressure valve and a second pressure valve on a block to design a VCR valve group detection device, so that when in use, the VCR valve group to be tested is directly connected to the first oil port on the block, and whether oil flows out of the second oil port and the third oil port can be observed to intuitively judge whether the pressure value is sufficient. At the same time, by connecting the VCR valve group to be tested to the fourth oil port to observe whether the third oil port is blocked, multiple VCR valve groups can be tested simultaneously, thereby improving detection efficiency and solving the problem of how to intuitively and quickly detect VCR valve groups. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the structure of this application;
[0015] Figure 2 Based Figure 1 The structural diagram on the back;
[0016] Figure 3 This is a cross-sectional view showing the relationship between the first valve cavity and the second valve cavity of the present application;
[0017] Figure 4 A cross-sectional view of the second valve chamber is shown for this application.
[0018] Among them, 1. block; 2. first oil port; 3. second oil port; 4. third oil port; 5. fourth oil port; 6. first valve chamber; 7. first oil path hole; 8. first valve core; 9. second valve chamber; 10. expansion chamber; 11. second valve core; 12. recessed portion; 13. fourth oil hole; 14. pressure gauge; 15. pressure sensor; 16. first through hole; 17. second through hole; 18. cylindrical tube; 19. third through hole; 20. plug body. DETAILED DESCRIPTION
[0019] like Figures 1-4 As shown, a VCR valve group detection device includes a block 1, which is provided with a first oil port 2, a second oil port 3, a third oil port 4, and a fourth oil port 5. A first pressure valve and a second pressure valve are provided in the block 1. The first pressure valve has an input end and two output ends. The input end of the first pressure valve is connected to the first oil port 2, one output end of the first pressure valve is connected to the input end of the second pressure valve, the other output end of the first pressure valve is connected to the second oil port 3, and the output end of the second pressure valve is connected to the third oil port 4. The second pressure valve is also provided with a closing oil passage for controlling the valve core of the second pressure valve away from the third oil port 4, and the closing oil passage is connected to the fourth oil port 5.
[0020] In the embodiment, when in use, the output end of the VCR valve group is communicated with the first oil outlet 2, the pressure values of the first pressure valve and the second pressure valve are set, and if the pressure of the liquid output by the VCR valve group reaches the preset value, the first pressure valve and the second pressure valve are opened, so that the second oil outlet 3 and the third oil outlet 4 both have oil flowing out. Compared with the way of reading the number, the way of observing whether there is oil flowing out is more intuitive, and the observation range is increased due to the two second oil outlets 3 and the third oil outlet 4. At the same time, the pressure adjustment range is increased by adopting the way of jointly adjusting the first pressure valve and the second pressure valve, and the two-stage pressure regulating way makes the adjusted pressure value more accurate. Another output end of the VCR valve group to be detected can be communicated with the fourth oil outlet 5, and if the flow is sufficient, the oil in the fourth oil outlet 5 will make the third oil outlet close, so that the application can detect the VCR valve group through the first oil outlet 2 and the fourth oil outlet 5, and improve the detection efficiency.
[0021] As a preferred way, the block 1 is provided with a first valve cavity 6, the bottom of the first valve cavity 6 is communicated with the first oil outlet 2 through a first oil passage hole 7, the first oil passage hole 7 is arranged in the block 1, the second oil outlet 3 is communicated with the first valve cavity 6 at the side wall of the first valve cavity 6, the block 1 is provided with a first valve core 8 matched with the first valve cavity 6, the first valve core 8 can seal the first valve cavity 6 and the first oil passage hole 7 when moving to the bottom of the first valve cavity 6, and the first valve core 8 can communicate the first valve cavity 6 and the first oil passage hole 7 when moving away from the bottom of the first valve cavity 6. After the liquid output by the detected VCR valve group enters from the first oil outlet 2, passes through the first oil passage hole 7 to the first valve cavity 6, and pushes the first valve core 8 away, the liquid output by the detected VCR valve group can flow out from the second oil outlet 2 and the third oil outlet 4.
[0022] As a preferred mode, the block 1 is provided with a second valve cavity 9 at a position away from the first valve cavity 6, the first valve cavity 6 is communicated with the second valve cavity 9 through a second oil passage hole 16, one end of the second oil passage hole 16 is on the side wall of the first valve cavity 6, and the other end is on the side wall of the second valve cavity 9, an expansion cavity 10 is provided in the block 1 between the two ends of the second cavity 9, the expansion cavity 10 is away from the communication position of the second oil passage hole 16 and the second valve cavity 9, the expansion cavity 10 is communicated with the third oil passage 4 through a third oil passage hole 17, a second valve core 11 is matched in the second valve cavity 9, when the second valve core 11 moves to the bottom wall of the second valve cavity 9, the second valve cavity 9 can be air-tightly isolated from the expansion cavity 10, and when the second valve core 11 is away from the bottom wall of the second valve cavity 9, the second valve cavity 9 can be communicated with the expansion cavity 10. After the liquid in the first valve cavity 6 enters the second valve cavity 9 from the second oil passage hole 16, the second valve core 11 is extruded, the second valve cavity 19 is communicated with the expansion cavity 10, so that the liquid output by the detected VCR valve group can flow out from the third oil passage 4, that is, the first valve cavity 6 and the first valve core 8 constitute a first pressure valve, the second valve cavity 9 and the second valve core 11 constitute a second pressure valve, the liquid after being adjusted by the first pressure valve flows into the second pressure valve, and then flows out from the third oil passage 4 after being extruded by the second pressure valve, forming a two-stage pressure regulation. This makes the detection more accurate.
[0023] As a preferred mode, a recess 12 is provided between the two ends of the side wall of the second valve core 11, the projection of the length of the recess 12 on the axis of the second valve core 11 is greater than the distance from the expansion cavity 10 to the second oil passage hole 16. By providing the recess 12, it is convenient to extrude the second valve core 11 after the liquid enters the second valve cavity 9 from the second oil passage hole 16. The recess 12 is provided to make the liquid flow out of the cavity, so that the liquid can extrude the second valve core 11.
[0024] As a preferred mode, the closing oil passage is a fourth oil passage hole 13, and the bottom wall of the second valve cavity 9 is communicated with the fourth oil passage 5 through the fourth oil passage hole 13. After the oil output by the detected VCR valve group enters the fourth oil passage hole 13 from the fourth oil passage 15, the second valve core 11 is extruded, so that the second valve core 11 isolates the expansion cavity 10 and the second valve cavity 9. Therefore, when the liquid pressure of the VCR valve group to be detected is insufficient, the fourth oil passage 5 has liquid flowing out, and when the liquid pressure of the VCR valve group to be detected is sufficient, the fourth oil passage 5 is closed.
[0025] As a preferred mode, a pressure gauge 14 and a pressure sensor 15 are arranged on the block 1 at the first oil passage 2, the pressure sensor 15 is signal connected to the first valve core 8, and the pressure sensing value of the pressure sensor 15 is 2.6 bar. By arranging the pressure gauge 14, the reading and adjustment of the number are facilitated, and the pressure sensor 15 is arranged so that the first valve core 8 is not moved until the pressure value reaches 2.6 bar, so that the liquid output by the detected VCR valve group can enter the first valve cavity 6 from the first oil passage 2. This makes the first pressure valve more accurate.
[0026] As a preferred mode, the first valve core 8 is a hollow structure, the projection of the bottom of the first valve core 8 on the plane parallel to the axis of the first valve core 9 is a trapezoid, the middle part of the first valve core 8 is provided with a first through hole 16, the surface of the first valve core 8 corresponding to the waist of the trapezoid is provided with a second through hole 17, the inner bottom of the first valve cavity 6 is coaxially and airtightly provided with a cylindrical tube 18 with an open end, the outer wall of the first valve core 8 is in airtight sliding connection with the inner wall of the cylindrical tube 18, the bottom wall of the cylindrical tube 18 is provided with a third through hole 19 in communication with the first oil passage hole 7, and the bottom surface of the first valve core 8 is provided with a plug body 20 matched with the third through hole 19. When the plug body 20 is matched with the third through hole 19, the first through hole 16 is located outside the cylindrical tube 18, and the second through hole 17 is located inside the cylindrical tube 18. After this arrangement, if the pressure of the liquid flowing into the first valve cavity 6 from the first oil passage hole 7 is large enough, the first valve core 8 will be lifted up, so that the plug body 20 is separated from the third through hole 19, and then the liquid enters the first valve core 8 from the first through hole 16, and then flows into the first valve cavity 6 from the second through hole 17 and is located outside the first valve core 8. When the first valve core 8 is not lifted up to separate from the third through hole 19, the liquid in the first oil passage hole 7 cannot enter the first through hole 16, so it cannot enter the first valve cavity 6. The cylindrical tube 18 is arranged to enable the first valve core 8 to be coaxial with the first valve cavity 6, so as to avoid the first valve core 8 from shaking in the first valve cavity 6, and to ensure that the plug body 20 can block the third through hole 19 when it needs to be closed.
Claims
1. A VCR valve group detection device, characterized by: The invention comprises a block (1), wherein the block (1) is provided with a first oil port (2), a second oil port (3), a third oil port (4), and a fourth oil port (5); a first pressure valve and a second pressure valve are provided in the block (1); the first pressure valve has an input end and two output ends; the input end of the first pressure valve is connected to the first oil port (2); one output end of the first pressure valve is connected to the input end of the second pressure valve; the other output end of the first pressure valve is connected to the second oil port (3); the output end of the second pressure valve is connected to the third oil port (4); a closing oil passage for controlling the valve core of the second pressure valve is further provided on the second pressure valve away from the third oil port (4); the closing oil passage is connected to the fourth oil port (5).
2. A VCR valve group detection device according to claim 1, characterized in that: A first valve cavity (6) is provided in the block (1), the bottom of the first valve cavity (6) is communicated with the first oil passage (2) through a first oil passage hole (7), the first oil passage hole (7) is provided in the block (1), and the second oil passage (3) is communicated with the first valve cavity (6) at the side wall of the first valve cavity (6), and a first valve core (8) is provided on the block (1) to cooperate with the first valve cavity (6), and when the first valve core (8) moves to the bottom of the first valve cavity (6), the first valve cavity (6) and the first oil passage hole (7) can be airtightly isolated, and when the first valve core (8) leaves the bottom of the first valve cavity (6), the first valve cavity (6) and the first oil passage hole (7) can be communicated.
3. A VCR valve group detection device according to claim 2, characterized in that: A second valve cavity (9) is provided on the block (1) away from the first valve cavity (6); the first valve cavity (6) is communicated with the second valve cavity (9) through a second oil passage hole (16); one end of the second oil passage hole (16) is on the side wall of the first valve cavity (6), and the other end is on the side wall of the second valve cavity (9); an expansion cavity (10) is provided between the two ends of the second cavity (9) in the block (1); the expansion cavity (10) is away from the second oil passage hole (16) and the second valve cavity (9), the expansion chamber (10) is connected to the third oil passage (4) through the third oil passage hole (17), and a second valve core (11) is provided in the second valve chamber (9). When the second valve core (11) moves to the bottom wall of the second valve chamber (9), the second valve chamber (9) and the expansion chamber (10) can be airtightly isolated. When the second valve core (11) leaves the bottom wall of the second valve chamber (9), the second valve chamber (9) and the expansion chamber (10) can be connected.
4. A VCR valve group detection device according to claim 3, characterized in that: A recessed portion (12) is provided between the two ends of the side wall of the second valve core (11), and the length of the projection of the recessed portion (12) on the axis of the second valve core (11) is greater than the distance from the expansion cavity (10) to the second oil passage hole (16).
5. The VCR valve group detection device according to claim 3, characterized in that: The closed oil passage is a fourth oil passage hole (13), and the bottom wall of the second valve cavity (9) is connected to the fourth oil port (5) through the fourth oil passage hole (13).
6. A VCR valve group detection device according to claim 2, characterized in that: The block (1) is provided with a pressure gauge (14) and a pressure sensor (15) at the first oil port (2). The signal of the pressure sensor (15) is connected to the first valve core (8). The pressure sensing value of the pressure sensor (15) is 2.6 bar.
7. The VCR valve group detection device according to claim 2, characterized in that: The first valve core (8) is a hollow structure. The projection of the bottom of the first valve core (8) on a plane parallel to the axis of the first valve core (9) is a trapezoid. A first through hole (16) is provided in the middle of the first valve core (8). A second through hole (17) is provided on the surface of the first valve core (8) corresponding to the waist of the trapezoid. The inner bottom of the first valve cavity (6) is coaxially and hermetically provided with a cylindrical tube (18) with one end open. The outer wall of the first valve core (8) is in contact with the cylindrical tube. The inner wall of the cylindrical tube (18) is tightly slidably connected, a third through hole (19) communicating with the first oil passage hole (7) is provided on the bottom wall of the cylindrical tube (18), a plug body (20) cooperating with the three through holes (19) is provided on the bottom surface of the first valve core (8), and when the plug body (20) cooperates with the third through hole (19), the first through hole (16) is located outside the cylindrical tube (18), and the second through hole (17) is located inside the cylindrical tube (18).