Multi-drive pressure monitoring module with connecting valve

Abstract

The utility model discloses a multi-drive pressure monitoring module with a connecting valve, which comprises a main valve body, and a main flow channel extending along the length direction of the main valve body is arranged in the main valve body; the charging connector is arranged at the side part of the main valve body and is communicated with the main flow channel; the branch valve bodies are sequentially arranged in the arrangement direction of the main flow channel and connected with the side portion of the main valve body. The pressure release valve is connected with the branch valve body and is communicated with the main flow channel; the multiple connecting valves are connected with the corresponding branch valve bodies respectively, and the connecting valves communicate with the main flow channel. The connecting valve and the auxiliary pipe fitting are connected with the nitrogen spring, multiple sets of filled equipment can be operated at the same time, it is guaranteed that pressure of each path is balanced, the V-shaped sealing piece can well avoid irregular distortion caused by deformation of the sealing piece when the ejector rod is pressed downwards, closure of the connecting valve is achieved, the sealing reliability of the connecting valve is enhanced, and the service life of the connecting valve is prolonged. And medium leakage is not easy to occur.

Description

Technical Field

[0001] The utility model belongs to the technical field of pressure monitoring devices, and in particular relates to a multi-drive pressure monitoring module with a connecting valve. Background Art

[0002] Mold-specific nitrogen spring (referred to as die nitrogen spring or nitrogen spring or nitrogen cylinder or nitrogen cylinder) is a new type of elastic component with high-pressure nitrogen as the working medium. It is small in size, large in elasticity, long in stroke, stable in operation, precisely manufactured, long in service life (one million times), with a gentle elastic curve and no need for pre-tightening, etc. It has the functions that conventional elastic components such as metal springs, rubber and air cushions cannot accomplish, simplifies mold design and manufacturing, facilitates mold installation and adjustment, extends mold service life, and ensures stable product quality. It can also be designed into a nitrogen spring system and work as part of the mold. It can easily achieve constant pressure and delayed action in the system. It is a new generation of the most ideal elastic component with flexible performance.

[0003] Nitrogen springs require high-pressure nitrogen to reach the set pressure before they can function properly. Traditionally, nitrogen spring inflation involves connecting an external air source charging connector to the spring and using an air pump to inject high-pressure nitrogen into the spring. To ensure the nitrogen pressure meets the set pressure, pressure replenishment and pressure relief are performed. However, existing monitoring devices are cumbersome during this process, requiring multiple installations and removals of the corresponding pipes to ensure the pressure reaches the specified level. Furthermore, existing monitoring devices lack reliable sealing due to the connection valve's tendency to leak. Utility Model Content

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A multi-drive pressure monitoring module with a connecting valve, comprising:

[0006] The main valve body is provided with a main flow channel extending along the length direction of the main valve body;

[0007] An air filling nozzle is provided on the side of the main valve body and is connected to the main flow channel;

[0008] At least three sub-valve bodies are sequentially arranged along the direction in which the main flow channel is set, and are connected to the side of the main valve body;

[0009] a pressure relief valve connected to the sub-valve body and in communication with the main flow channel;

[0010] The connecting valves are the same in number as the sub-valve bodies, are respectively connected to the corresponding sub-valve bodies, and are connected to the main flow channel;

[0011] a pressure gauge, connected to the connecting valve;

[0012] The connecting valve comprises:

[0013] A valve seat having an inlet end and an outlet end;

[0014] a sealing member having a V-shaped cross section and disposed in the valve seat;

[0015] A valve body connected to the valve seat, wherein a push rod is sleeved in the valve body, and the push rod has a sealing head conforming to the sealing element; and

[0016] A force applying member, used for controlling the movement of the ejector rod in the valve body to move the sealing head closer to or away from the sealing member;

[0017] After the push rod is inserted into the sealing member for engagement, the connecting valve is in a cut-off state.

[0018] Furthermore, a diverter channel connected to the main flow channel is provided in the diverter valve body, and the pressure relief valve and the connecting valve are connected to the main flow channel through the diverter channel.

[0019] Furthermore, an inflation channel is provided in the main valve body, and the inflation nozzle is connected with the main flow channel through the inflation channel.

[0020] Furthermore, the sub-valve body is located at the bottom of the main valve body.

[0021] Furthermore, a protective cover is connected to the main valve body.

[0022] Furthermore, the pressure gauge includes a mechanical pointer pressure gauge.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] This module consists of a main valve body and a sub-valve body. The external gas source can be connected to the monitoring module through the inflation nozzle. The main channel guides the high-pressure gas to the corresponding connecting valves. The connecting valves and auxiliary pipes are connected to the nitrogen springs. It can operate multiple groups of charged equipment simultaneously to ensure balanced pressure in each line. In the event of underpressure or overpressure, one group of charged equipment can be operated independently without affecting the other group of equipment, which is also convenient to use.

[0025] The connecting valve in this monitoring module adopts a seal with a V-shaped cross-section, which can effectively avoid irregular distortion caused by deformation of the seal when the push rod is pressed down, thereby realizing the interception of the connecting valve, enhancing its sealing reliability, and preventing leakage of the medium. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the three-dimensional structure of an embodiment of a multi-drive pressure monitoring module with a connecting valve according to the present invention (viewpoint one);

[0027] Figure 2 This is a schematic diagram of the main structure of an embodiment of a multi-drive pressure monitoring module with a connecting valve of the present invention (viewpoint 2);

[0028] Figure 3 Schematic diagram of the internal structure of an embodiment of the present utility model (viewing angle 1);

[0029] Figure 4 Schematic diagram of the internal structure of an embodiment of the present utility model (viewing angle 2);

[0030] Figure 5 Schematic diagram of the internal structure of an embodiment of the present utility model (viewing angle 3);

[0031] Figure 6 This is a schematic cross-sectional view of the connecting valve in an embodiment of the present utility model;

[0032] Figure 7 This is a schematic cross-sectional view of the connecting valve in an embodiment of the present utility model;

[0033] The reference numerals in the drawings of the specification include:

[0034] Main valve body 1, mainstream channel 10, inflation channel 11, sub-valve body 2, diversion channel 20, inflation nozzle 3, pressure relief valve 4, connecting valve 5, pressure gauge 6, protective cover 7, valve seat 51, inlet end 510, first channel 5100, outlet end 511, second channel 5110, sealing member 52, valve body 53, push rod 54, sealing head 540, sealing ring 5400, support ring 55, through hole 550, sliding member 56, threaded pin 560, retaining ring 561, force applying member 57, O-ring 58. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0036] The accompanying drawings are for illustrative purposes only and are schematic rather than physical representations, and should not be construed as limiting this patent. To better illustrate the embodiments of the present invention, certain components of the accompanying drawings may be omitted, enlarged, or reduced in size, and do not represent the dimensions of actual products. It is understandable to those skilled in the art that certain well-known structures and their descriptions may be omitted from the accompanying drawings. Identical or similar reference numerals in the accompanying drawings of the embodiments of the present invention correspond to identical or similar components. In the description of the present invention, it should be understood that the terms "upper," "lower," "left," "right," "inner," "outer," and the like, indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction. Therefore, the terms describing positional relationships in the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. Those skilled in the art will understand the specific meanings of the above terms based on specific circumstances.

[0037] like Figure 1 - Figure 7 As shown, the utility model is a multi-drive pressure monitoring module with a connecting valve, comprising a main valve body 1, a sub-valve body 2 located at the bottom of the main valve body 1 and connected to the main valve body 1, an inflation nozzle 3, a pressure relief valve 4 and a connecting valve 5;

[0038] The main valve body 1 is provided with a main flow channel 10 extending along the length direction of the main valve body. The main flow channel 10 provided in the main valve body 1 allows the external gas source to flow in a predetermined form, thereby realizing the simultaneous filling of multiple gas circuits or oil circuits and ensuring the pressure balance of each circuit.

[0039] The inflation nozzle 3 is arranged on the side of the main valve body 1 and is connected to the main flow channel 10;

[0040] Among them, at least three sub-valve bodies 2 are arranged in sequence along the direction of the main flow channel 10 and are connected to the side of the main valve body;

[0041] The pressure relief valve 4 is connected to the sub-valve body 2 and communicates with the main flow channel 10. When relieving pressure, a certain pressure pipeline can be relieved separately;

[0042] The number of connecting valves 5 is the same as that of the sub-valve bodies 2, and they are respectively connected to the corresponding sub-valve bodies, and the connecting valves 5 are connected to the main flow channel 10;

[0043] A pressure gauge 6 is connected to the connecting valve 5 and is used to display and monitor the air pressure or hydraulic pressure value of the external device corresponding to the connecting valve 5. The number of the pressure gauge 6 is consistent with the number of the connecting valve 5;

[0044] like Figure 6 、 Figure 7As shown, specifically, the connecting valve 5 includes a valve seat 51, a sealing member 52, a force applying member 57 and a push rod 54:

[0045] The valve seat 51 has an inlet end 510 and an outlet end 511. Both ends of the valve seat 51 are used to connect to the gas delivery pipeline, and both ends can be in the form of quick connectors.

[0046] The sealing member 52 has a V-shaped cross-section and is arranged in the valve seat 51. A hole is provided in the middle as a channel for the circulation of the medium. The valve body 53 is connected to the valve seat 51 by a threaded connection. A push rod 54 is sleeved in the valve body 53. The push rod 54 has a sealing head 540 that is adapted to the shape of the sealing member 52. The sealing head 540 is slightly larger than the hole in the sealing member 52. When the sealing head 540 extends into the middle of the sealing member 52, the sealing member 52 is subjected to the outward squeezing force of the sealing head 540, and the outer walls of the two are tightly fitted.

[0047] The force applying member 57 is used to control the movement of the push rod 54 in the valve body 53 so that the sealing head 540 moves closer to or away from the sealing member 52;

[0048] After the push rod 54 extends into the sealing member 52 and engages with the sealing member 52, the connecting valve 5 is in a cut-off state.

[0049] This connecting valve 5 can be used for on-off control of high-pressure gas or hydraulic pressure. Driven by the force-applying member 57, the push rod 54 presses the seal 52 to the bottom position of the valve body 53. Since a hole is provided in the middle of the seal 52, the cross-section of the seal 52 is V-shaped, which can effectively avoid irregular distortion caused by deformation of the seal 52 when the push rod 54 is pressed down, thereby realizing the interception of the connecting valve 5, and its sealing reliability is enhanced, and leakage of the medium is not likely to occur.

[0050] This pressure monitoring module can not only monitor the pressure of the nitrogen spring pipeline system, but also be used to monitor the internal pressure of the robot balance cylinder, and has a wide range of applications.

[0051] In this embodiment, the module consists of a main valve body 1 and a sub-valve body 2. An external gas source is connected to the monitoring module via an inflation nozzle 3. A main flow channel 10 directs high-pressure gas to corresponding connecting valves 5. These valves and associated pipes are connected to nitrogen springs, allowing simultaneous operation of multiple groups of charged equipment to ensure pressure balance across each circuit. In the event of underpressure or overpressure, independent operation can be performed on one group of charged equipment without affecting the other, making it convenient to use.

[0052] Specifically, such as Figure 3 、 Figure 4 、 Figure 5As shown, in this embodiment, a two-drive pressure monitoring module is taken as an example, wherein a diverter channel 20 connected to the main channel 10 is provided in the sub-valve body, and the pressure relief valve 4 and the connecting valve 5 are connected to the main channel 10 through the diverter channel 20.

[0053] An air charging channel 11 is provided in the main valve body, and the air charging nozzle 3 is connected with the main flow channel 10 through the air charging channel 11 .

[0054] During inflation, the external gas source is connected to the inflation nozzle 3. At this time, the gas flows through each sub-valve body along the main flow channel 10. A connector valve is installed on the sub-valve body, which is used to connect or disconnect the high-pressure gas circuit.

[0055] like Figure 5 As shown, when the connecting valve 5 is opened, the airflow flows into the diversion channel 20 and enters the pressure gauge 6 connected to the diversion channel 20, as well as the external pressure measurement / inflation equipment, wherein the direction of the arrow is the direction of the airflow.

[0056] In the use of automotive or household appliance molds, in order to obtain high-quality stamping products, the more consistent the spring return force inside the mold, the more balanced the force, and the better the forming effect. This requires consistent air pressure. When inflating, the multiple connecting valves 5 of this pressure monitoring device can simultaneously inflate each set of external equipment, ensuring consistent air pressure.

[0057] Specifically, when a certain group of pipelines needs to be inflated separately, it is only necessary to open the corresponding connecting valve 5 to inflate the group of equipment.

[0058] If it is necessary to charge other groups with different pressures, it is only necessary to close the connecting valve 5 of the original group and open the connecting valve 5 of the group to be inflated to start inflation.

[0059] In addition, when releasing or regulating pressure, the specific operation is: first open the connecting valve 5 of the corresponding group, and then open the main pressure relief valve 4, so as to release or regulate the pressure of the group.

[0060] In addition, a protective cover 7 is connected to the main valve body. The protective cover 7 can play a role in protecting the safety of the monitoring module and prevent external impact from causing damage to module components.

[0061] The pressure gauge 6 can preferably be a mechanical pointer pressure gauge 6, which has low procurement and maintenance costs, high reliability, and is suitable for high-pressure use scenarios in the range of 0-40 MPA. Of course, other types of pressure gauges 6 can also be used for monitoring as needed, such as liquid crystal digital display.

[0062] It should be noted that the monitoring module in this embodiment is a three-drive type, and can also be set to four-drive, five-zone or more, by simply adding corresponding related components such as the connecting valve 5.

[0063] Among them, in this connecting valve, a sealing ring 5400 is provided at the tail end of the sealing head 540 to cooperate with the end face of the sealing member 52. When the push rod 54 moves downward to the maximum stroke, the sealing ring 5400 is tightly attached to the upper surface of the sealing member 52, further enhancing its airtightness.

[0064] A support ring 55 is provided in the valve body 53 and is sleeved on the outer circumference of the sealing head 540 . The sealing member 52 is in contact with the inner wall of the support ring 55 . A through hole 550 is formed on the circumference of the support ring 55 .

[0065] The valve seat 51 defines a first channel 5100 and a second channel 5110 , which are connected to the inlet end 510 and the outlet end 511 , respectively.

[0066] When the push rod 54 moves upward and its sealing head 540 is separated from the sealing member 52, when the connecting valve 5 is in a flow-through state, the external medium enters the support ring 55 through the hole from the bottom of the sealing member 52 through the first channel 5100, and passes through the circumferential through-hole 550 of the support ring 55, and finally flows out from the second channel 5110, thereby realizing the medium circulation in the pipelines on both sides of the connecting valve 5.

[0067] Specifically, the first channel 5100 is connected to the bottom of the sealing member 52 , and the plane where the second channel 5110 is located is higher than the plane where the first channel 5100 is located.

[0068] The connecting valve 5 is designed to have a low inlet and a high outlet, in order to reduce the flow resistance and save more effort when the connecting valve 5 is opened.

[0069] It should be noted that the force-applying member 57 has various structural types, and can realize the function of moving the push rod 54. For example, it can be in the form of a rotating part threadedly connected to the valve body 53, or in the form of a pressure-lifting part directly connected to the push rod 54. The specific structural form is not limited.

[0070] Taking the rotating part as an example, a blind hole is provided in the middle for the tail end of the push rod 54 to be inserted, and a thread is provided on the inner wall of the blind hole to cooperate with the external thread of the valve body 53. When the force-applying member 57 is turned clockwise or counterclockwise by hand, the force-applying member 57 drives the push rod 54 to move upward or downward through the sliding member 56.

[0071] In addition, the sliding member 56 is arranged on the top of the valve body 53 and is sleeved on the outer periphery of the top rod 54. A threaded hole is opened on the side of the rotating part, and the sliding member 56 is connected to the rotating part through the threaded pin 560. Specifically, the cross-section of the sliding member 56 is I-shaped, and the head of the threaded pin 560 extends into the groove on the side of the sliding member 56. This arrangement makes disassembly and assembly more convenient.

[0072] In addition, in order to prevent the sliding member 56 from detaching from the tail of the push rod 54 and driving the push rod 54 to rise, a slot can be opened on the push rod 54, and the sliding member 56 is fixed to the outer periphery of the tail of the push rod 54 through the cooperation of the retaining spring 561 and the slot. The retaining spring 561 is preferably an E-type retaining spring 561 (E-type retaining ring), which plays a role in preventing the sliding member 56 from axial movement.

[0073] An O-ring 58 is provided at the upper end of the support ring 55 and sleeved on the outer circumference of the push rod 54. The O-ring 58 can also be provided at the connection between the valve seat 51 and the valve body 53 to further prevent leakage of the medium.

[0074] The above are only embodiments of the present invention. Common knowledge such as the known specific structures and characteristics in the scheme is not described in detail here. Ordinary technicians in the relevant field are aware of all common technical knowledge in the technical field of the utility model before the application date or priority date, can obtain all existing technologies in the field, and have the ability to apply conventional experimental means before that date. Ordinary technicians in the relevant field can improve and implement this scheme based on their own abilities under the guidance of this application. Some typical known structures or methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the utility model, they can also make several variations and improvements, which should also be regarded as the scope of protection of the utility model. These will not affect the effect of the implementation of the utility model and the practicality of the patent.

Claims

1. A multi-drive pressure monitoring module with a connecting valve, characterized in that: include: The main valve body is provided with a main flow channel extending along the length direction of the main valve body; An air filling nozzle is provided on the side of the main valve body and is connected to the main flow channel; At least three sub-valve bodies are sequentially arranged along the direction in which the main flow channel is set, and are connected to the side of the main valve body; a pressure relief valve connected to the sub-valve body and in communication with the main flow channel; The connecting valves are the same in number as the sub-valve bodies, are respectively connected to the corresponding sub-valve bodies, and are connected to the main flow channel; a pressure gauge, connected to the connecting valve; The connecting valve comprises: A valve seat having an inlet end and an outlet end; a sealing member having a V-shaped cross section and disposed in the valve seat; A valve body connected to the valve seat, wherein a push rod is sleeved in the valve body, and the push rod has a sealing head conforming to the sealing element; and A force applying member, used for controlling the movement of the ejector rod in the valve body to move the sealing head closer to or away from the sealing member; After the push rod is inserted into the sealing member for engagement, the connecting valve is in a cut-off state; The valve seat is provided with a first channel and a second channel connected to the inlet end and the outlet end respectively; The plane where the second channel is located is higher than the plane where the first channel is located; An O-ring is provided at the upper end of the support ring and sleeved on the outer circumference of the push rod.

2. A multi-drive pressure monitoring module with a connecting valve according to claim 1, characterized in that: The branch valve body is provided with a diverter channel connected to the main flow channel, and the pressure relief valve and the connecting valve are connected to the main flow channel through the diverter channel.

3. A multi-drive pressure monitoring module with a connecting valve according to claim 1 or 2, characterized in that: An inflation channel is provided in the main valve body, and the inflation nozzle is connected with the main flow channel through the inflation channel.

4. A multi-drive pressure monitoring module with a connecting valve according to claim 3, characterized in that: The sub-valve body is located at the bottom of the main valve body.

5. A multi-drive pressure monitoring module with a connecting valve according to claim 1, 2 or 4, characterized in that: A protective cover is connected to the main valve body.

6. A multi-drive pressure monitoring module with a connecting valve according to claim 1, 2 or 4, characterized in that: The pressure gauge comprises a mechanical pointer pressure gauge.

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