Multi-drive pressure monitoring module

Abstract

The utility model discloses a multi-drive pressure monitoring module which comprises a main valve body, and a main flow channel extending in 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 number of the connecting valves is two, the connecting valves are connected with the corresponding branch valve bodies respectively, and the connecting valves communicate with the main flow channel. An external air source can be connected into the monitoring module through the charging connector, multiple sets of charged equipment can be operated at the same time, it is guaranteed that the pressure of each path is balanced, sealing accessories in the pressure release valve are not prone to being damaged, the stable sealing effect is achieved, and meanwhile durability is achieved.

Description

Technical Field

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

[0002] A special nitrogen spring for molds (referred to as a punching die nitrogen spring or a nitrogen spring or a nitrogen cylinder) is a new type of elastic component with high-pressure nitrogen as the working medium. It has the advantages of small volume, large elastic force, long stroke, stable operation, precise manufacturing, long service life (one million times), gentle elastic force curve, and no need for pre-tightening, etc. It can perform tasks that are difficult for conventional elastic components such as metal springs, rubber, and air cushions. It simplifies the mold design and manufacturing, facilitates the mold installation and adjustment, extends the service life of the mold, ensures the stability of product quality, and can also be designed as a nitrogen spring system to participate in the work as part of the mold. It can easily achieve constant pressure and delay action in the system, and is an ideal elastic component of a new generation with flexible performance.

[0003] The nitrogen spring needs to be filled with high-pressure nitrogen inside and reach the set pressure before it can be used normally. The traditional method for filling nitrogen into the nitrogen spring is as follows: The inflation joint at the external gas source end is connected to the nitrogen spring, and an air pump is used to inject high-pressure nitrogen into the nitrogen spring. To ensure that the nitrogen pressure filled meets the set requirements, pressure supplementation or pressure relief operations will be carried out. However, in the above process, the existing monitoring device is relatively inconvenient to operate. It is necessary to repeatedly install and uninstall the corresponding pipeline to make the air pressure reach the standard, which is relatively cumbersome, and it is impossible to integrally monitor and operate multiple groups of external nitrogen springs;

[0004] In addition, due to the pressure relief valve in the existing monitoring device being restricted by the internal seal structure, its reliability is poor. Under high-pressure gas, the impact generated during the pressure relief instant may cause damage to the seal. Content of the Utility Model

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A multi-drive pressure monitoring module includes:

[0007] A main valve body, in which a main flow channel extending along the length direction of the main valve body is arranged;

[0008] An inflation nozzle, which is arranged on the side of the main valve body and is communicated with the main flow channel;

[0009] Sub-valve bodies, several of which are arranged in sequence along the setting direction of the main flow channel and are connected to the side of the main valve body;

[0010] A pressure relief valve, which is connected to the sub-valve body and is communicated with the main flow channel;

[0011] A number of connecting valves, which are respectively connected to the corresponding sub-valve body, and the connecting valves are communicated with the main flow channel;

[0012] A pressure gauge;

[0013] Among them, the pressure relief valve includes:

[0014] A valve seat, which has an outlet end and a joint, and an inlet end is arranged at the joint;

[0015] A seal, with a V-shaped cross-section, is arranged in the valve seat;

[0016] A valve body, which is connected to the valve seat, and a push rod is sleeved in the valve body. The push rod has a sealing head adapted to the seal; and

[0017] A force applying member, which is used to control the movement of the push rod in the valve body, so that the sealing head approaches or moves away from the seal;

[0018] After the push rod extends into and cooperates with the seal, the pressure relief valve is in a cut-off state;

[0019] A support ring is arranged at the bottom of the valve body, and a through hole communicating with the outlet end is opened on the support ring.

[0020] Further, a diversion channel communicating with the main flow channel is arranged in the sub-valve body, and the pressure relief valve and the connecting valve are communicated with the main flow channel through the diversion channel.

[0021] Further, an inflation channel is arranged in the main valve body, and an inflation nozzle is communicated with the main flow channel through the inflation channel.

[0022] Further, the sub-valve body is located at the bottom of the main valve body.

[0023] Further, a protective cover is connected to the main valve body.

[0024] Further, the valve body is threadedly connected to the inner wall of the valve seat.

[0025] Further, the five connecting valves are arranged in a straight line.

[0026] Compared with the prior art, the present utility model has the following beneficial effects:

[0027] This module adopts two parts: a main valve body and a sub-valve body. An external air source can be connected to this monitoring module through an inflation nozzle. The high-pressure gas is respectively diverted to the corresponding connected connecting valves through the main flow channel, and is connected to the nitrogen spring through the connecting valve and the attached pipe fittings. Multiple groups of devices to be filled can be operated simultaneously to ensure the pressure balance of each path. When the corresponding underpressure or overpressure occurs, a certain group of devices to be filled can be operated independently without affecting another group of devices, and it is also more convenient to use;

[0028] While the pressure relief valve in this technical solution can achieve the basic pressure relief function, a seal with a V-shaped cross-section is arranged in the valve seat, and its deformation during the cooperation with the sealing head is different from the structure of ordinary seals, avoiding the adverse effects caused by irregular twisting, enhancing the reliability of high-pressure airtightness, and making it difficult for each sealing accessory to be damaged during the instant of pressure relief. This design not only has a stable sealing effect but also is durable. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 FIG. 6 is a perspective structural view (view angle one) of an embodiment of a multi-drive pressure monitoring module of the present utility model;

[0030] Figure 2 FIG. 7 is a perspective structural view (view angle two) of an embodiment of a multi-drive pressure monitoring module of the present utility model;

[0031] Figure 3 FIG. 8 is an internal structural view (view angle one) of an embodiment of the present utility model;

[0032] Figure 4 FIG. 9 is an internal structural view (view angle two) of an embodiment of the present utility model;

[0033] Figure 5 FIG. 10 is an internal structural view (view angle three) of an embodiment of the present utility model;

[0034] Figure 6 FIG. 11 is a perspective structural view of the pressure relief valve in an embodiment of the present utility model;

[0035] Figure 7 FIG. 12 is a sectional structural view of the pressure relief valve in an embodiment of the present utility model;

[0036] Figure 8 is Figure 7 a partial enlarged view of part A in

[0037] The reference numerals in the attached drawings of the specification include:

[0038] Main valve body 1, main flow channel 10, inflation channel 11, sub-valve body 2, shunt channel 20, inflation nozzle 3, pressure relief valve 4, connection valve 5, pressure gauge 6, protective cover 7, valve seat 41, joint 410, inlet end 411, outlet end 412, groove 413, seal 42, valve body 43, support ring 430, through hole 4300, ejector rod 44, sealing head 440, sealing ring 4400, force applying member 45, threaded hole 450, sliding member 46. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0039] In order to enable those skilled in the art to better understand the present utility model, the technical solution of the present utility model will be further described below in conjunction with the drawings and embodiments.

[0040] Among them, the attached drawings are only for illustrative purposes, showing only schematic diagrams, not physical drawings, and should not be construed as a limitation on this patent; in order to better illustrate the embodiments of the present invention, some components in the attached drawings will be omitted, enlarged or reduced, which do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the attached drawings may be omitted. The same or similar reference numerals in the attached drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if terms such as "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the attached drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the attached drawings are only for illustrative purposes and should not be construed as a limitation on this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0041] As Figure 1 - Figure 8 shown, a multi-drive pressure monitoring module of the present invention includes a main valve body 1, a sub-valve body 2 connected to the bottom of the main valve body 1, an inflation nozzle 3, a pressure relief valve 4, and a connection valve 5.

[0042] Among them, a main flow channel 10 extending along the length direction of the main valve body is provided in the main valve body 1. The main flow channel 10 provided in the main valve body 1 circulates the external gas source in a predetermined form to achieve simultaneous filling of multiple gas paths or oil paths and ensure the pressure balance of each path.

[0043] The inflation nozzle 3 is arranged on the side of the main valve body and is communicated with the main flow channel 10;

[0044] Among them, several 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 1;

[0045] The pressure relief valve 4 is connected to the sub-valve body 2 and is communicated with the main flow channel 10. During pressure relief, a certain pressure pipeline can be relieved of pressure separately.

[0046] Several connection valves 5 are respectively connected to the corresponding sub-valve bodies 2, and the connection valves 5 are communicated with the main flow channel 10;

[0047] The pressure gauge 6 is used to display and monitor the air pressure or hydraulic pressure value of the corresponding external device of the connection valve 5, and its quantity is consistent with the quantity of the connection valve 5;

[0048] The monitoring module in this embodiment is a five-drive, and it can also be set to six zones, seven zones or more according to needs, and only relevant components such as the connection valve 5 need to be added correspondingly.

[0049] As Figure 6 , Figure 7 , Figure 8 shown, wherein, the pressure relief valve 4 includes:

[0050] including a valve seat 41, a seal 42 and a valve body 43;

[0051] Wherein, the valve seat 41 has an outlet end 412 and a joint 410, and an inlet end 411 is provided at the joint 410. Specifically, the inlet end 411 is provided at the bottom of the valve seat 41, and the outlet end 412 is provided at the side of the valve seat 41.

[0052] The cross-section of the seal 42 is V-shaped and is arranged inside the valve seat 41;

[0053] A groove 413 is formed on the inner bottom surface of the valve seat 41, and the seal 42 is placed at the groove 413.

[0054] The valve body 43 is threadedly connected to the inner wall of the valve seat 41. A push rod 44 is sleeved inside the valve body 43, and the push rod 44 has a sealing head 440 adapted to the seal 42; and

[0055] A force applying member 45 is arranged on the top of the valve body 43 for controlling the movement of the push rod 44 inside the valve body 43 to make the sealing head 440 approach or move away from the seal 42;

[0056] After the push rod 44 extends into and mates with the seal 42, the pressure relief valve 4 is in a cut-off state.

[0057] 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.

[0058] In this embodiment, the module is divided into a main valve body and a sub-valve body. The external air source can be connected to this monitoring module through the inflation nozzle 3, and the high-pressure gas is respectively diverted to the corresponding connected connection valves 5 through the main flow channel 10, and is connected to the nitrogen spring through the connection valves 5 and the accessory pipe fittings. Multiple sets of devices to be filled can be operated simultaneously to ensure the pressure balance of each path. When the corresponding underpressure or overpressure occurs, a certain set of devices to be filled can be independently operated without affecting the other set of devices, and it is also more convenient to use.

[0059] While the pressure relief valve 4 in this embodiment can achieve the basic pressure relief function, due to the adoption of a seal 42 with a V-shaped cross-section arranged inside the valve seat 41, and the seal 42 is pressed against the bottom position of the valve body by the push rod 44, the fit between the sealing head 440 and the seal 42 is closer.

[0060] During the deformation process when cooperating with the sealing head 440, it is different from the structure of the ordinary seal 42, avoiding the adverse effects caused by irregular twisting, enhancing the reliability of the high-pressure airtight seal. At the moment of pressure relief, each sealing accessory is not easily damaged. This design not only has a stable sealing effect but also is durable.

[0061] As Figure 8 shown, specifically, a support ring 430 is provided at the bottom of the valve body, and a through hole 4300 communicating with the outlet end 412 is opened on the support ring 430.

[0062] A sealing ring 4400 is provided at the tail of the sealing head 440.

[0063] A sliding member 46 sleeving on the outer periphery of the tail of the ejector rod 44 is provided at the upper end of the valve body, and the cross section of the sliding member 46 is in an I shape. To prevent the sliding member 46 from detaching from the tail of the ejector rod 44 and driving the ejector rod 44 to lift, a clamping groove can be opened on the ejector rod 44, and the sliding member 46 is matched with this clamping groove through a snap ring.

[0064] Specifically, the sliding member 46 is arranged at the top of the valve body and sleeved on the outer periphery of the ejector rod 44.

[0065] In this embodiment, when the seal 42 is subjected to the outward extrusion force of the inner wall by the sealing head 440, the deformation situation occurring during its cooperation process is different from the ordinary sealing structure adopting a planar form, avoiding the adverse effects caused by irregular twisting, enhancing the reliability of the high-pressure airtight seal. At the moment of pressure relief, each sealing accessory is not easily damaged. This design not only has a stable sealing effect but also is durable.

[0066] Among them, a threaded hole 450 is opened on the side of the force-applying member 45, and the sliding member 46 is connected to the force-applying member 45 through the cooperation of a threaded pin and the threaded hole 450.

[0067] Specifically, the cross section of the sliding member 46 is in an I shape, and the head of the threaded pin extends into the side groove 413 of the sliding member 46. With such a setting method, disassembly and assembly are more convenient.

[0068] It should be noted that the structural types of this force-applying member 45 are diverse, as long as the function of moving the ejector rod 44 can be realized. For example, it can adopt the form of a rotating part that is threadedly connected to the valve body and sleeved on the outer periphery of the ejector rod 44, or it can also be in the form of a lifting and pressing part directly connected to the ejector rod 44. The specific structural form is not limited.

[0069] Taking the form of the rotating part as an example, a blind hole is opened in the middle for the tail end of the ejector rod 44 to insert. Threads are provided on part of the inner wall of the blind hole, which are matched with the external threads of the valve body. When the force-applying member 45 is rotated clockwise or counterclockwise by hand, the force-applying member 45 drives the ejector rod 44 to move up or down through the sliding member 46.

[0070] Specifically, as shown in Figure 3 , Figure 4 , Figure 5 , in this embodiment, a two-drive pressure monitoring module is taken as an example. A shunt channel 20 communicating with the main flow channel 10 is provided in the sub-valve body. The pressure relief valve 4 and the connection valve 5 are connected to the main flow channel 10 through the shunt channel 20.

[0071] An inflation channel 11 is provided in the main valve body. The inflation nozzle 3 is connected to the main flow channel 10 through the inflation channel 11.

[0072] During inflation, an external air source is connected to the inflation nozzle 3. At this time, the gas flows through each sub-valve body along with the main flow channel 10. A connector valve is installed on the sub-valve body, and its function is to connect or disconnect the high-pressure gas path.

[0073] When the connection valve 5 is opened, the air flow flows into the shunt channel 20, and enters the pressure gauge 6 connected to the shunt channel 20, as well as the external device to be pressure-measured / inflated.

[0074] In the use of automotive molds or home appliance molds, in order to obtain good stamping products, the better the consistency of the spring return force inside the mold, the more balanced the force, and the better the forming and effect, it is necessary to ensure the consistency of the air pressure. In this pressure monitoring device, during inflation, multiple groups of connection valves 5 can simultaneously inflate each group of external devices, ensuring the consistency of the air pressure.

[0075] Specifically, when it is necessary to inflate a certain group of pipelines alone, only the corresponding connection valve 5 needs to be opened to inflate this group of devices.

[0076] If it is necessary to inflate other groups with different pressures, only the original group of connection valves 5 need to be in the closed state, and the connection valves 5 of the group to be inflated are opened for inflation.

[0077] In addition, during pressure relief or pressure regulation, the specific operation is as follows: first open the connection valve 5 of the corresponding group, and then open the total pressure relief valve 4 to perform pressure relief or pressure regulation on this group.

[0078] 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 this monitoring module, preventing external impacts and causing damage to the module components.

[0079] Among them, the pressure gauge 6 can preferably adopt a mechanical pointer type pressure gauge 6. The mechanical pointer type pressure gauge 6 has relatively low procurement and maintenance costs and strong 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 according to needs, such as the liquid crystal digital display form, etc.

[0080] The above are only the embodiments of the present utility model. Specific structures and common knowledge such as characteristics well-known in the art are not described in detail herein. Those of ordinary skill in the art know all the common general technical knowledge in the technical field to which the utility model belongs before the application date or the priority date, are able to acquire all the prior art in this field, and have the ability to apply the conventional experimental means before this date. Those of ordinary skill in the art can, under the inspiration given in this application, combine their own abilities to improve and implement this solution. Some typical well-known structures or well-known methods should not become obstacles for those of ordinary skill in the art to implement this application. It should be noted that for those skilled in the art, without departing from the structure of the present utility model, several deformations and improvements can still be made, and these should also be regarded as the protection scope of the present utility model, and these will not affect the implementation effect of the present utility model and the practicality of the patent.

Claims

1. A multi-drive pressure monitoring module, characterized in that: include: A 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 arranged on the side of the main valve body and is connected with the main flow channel; Sub-valve bodies, a plurality of said sub-valve bodies are arranged in sequence along the direction in which the mainstream channel is set, and are connected to the side of said main valve body; A pressure relief valve connected to the sub-valve body and in communication with the main flow channel; A plurality of connecting valves are respectively connected to the corresponding sub-valve bodies, and the connecting valves are connected to the main flow channel; Pressure gauge; Wherein, the pressure relief valve comprises: A valve seat having an outlet end and a joint, wherein the joint is provided with an inlet end; A sealing member, which has a V-shaped cross section and is disposed in the valve seat; A valve body connected to the valve seat, a push rod 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 push rod in the valve body to make the sealing head approach or move away from the sealing member; After the push rod is inserted into the sealing member for engagement, the pressure relief valve is in a cut-off state; A support ring is provided at the bottom of the valve body, and a through hole connected to the outlet is opened on the support ring; The sub-valve body is provided with a flow-dividing channel connected with the main flow channel, and the pressure relief valve and the connecting valve are connected with the main flow channel through the flow-dividing channel; There are five connecting valves.

2. A multi-drive pressure monitoring module as claimed in claim 1, characterized in that: The main valve body is provided with an air charging passage, and the air charging nozzle is connected with the main flow passage through the air charging passage.

3. A multi-drive pressure monitoring module according to claim 1 or 2, characterized in that: The five connecting valves are arranged in a straight line.

4. A multi-drive pressure monitoring module as claimed in 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 as claimed in claim 1, 2 or 4, characterized in that: The main valve body is connected with a protective cover.

6. A multi-drive pressure monitoring module as claimed in claim 1, 2 or 4, characterized in that: The valve body is threadedly connected to the inner wall of the valve seat.

7. A multi-drive pressure monitoring module as claimed in claim 6, characterized in that: The pressure gauge comprises a mechanical pointer pressure gauge.

8. A multi-drive pressure monitoring module as claimed in claim 1, 2, 4 or 7, characterized in that: The upper end of the valve body is provided with a sliding piece which is sleeved on the outer periphery of the tail of the push rod.

9. A multi-drive pressure monitoring module as claimed in claim 8, characterized in that: A clamping groove is provided on the push rod, and the sliding piece cooperates with the clamping groove through a clamping spring.

10. A multi-drive pressure monitoring module as claimed in claim 8, characterized in that: The cross section of the sliding member is in an I-shape.

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