Vacuum pump air suction pipeline one-way valve state monitoring device

Abstract

The utility model discloses a vacuum pump air suction pipeline one-way valve state monitoring device, which relates to the technical field of one-way valve monitoring equipment and comprises a one-way valve body, a valve core is arranged in the middle of the one-way valve body, a valve body frame is arranged on the upper side of the one-way valve body, and a center hole is formed in the middle of the valve body frame. A fixed connecting rod is slidably connected into the center hole, a pressure spring is arranged at the end, located on the valve element, of the fixed connecting rod in a sleeving mode, a plurality of detection bases are arranged on the side, facing the valve element, of the valve body frame, and the interiors of the detection bases are connected with photoelectric sensors through sliding limiting assemblies; according to the utility model, the state change of the detection valve core and the pressure spring can be effectively detected through the photoelectric sensor, so that the problems of elasticity attenuation and fracture of the pressure spring and opening and closing retardation of the valve core are effectively detected, the operation stability of vacuum pump equipment is improved, and the service life of the vacuum pump equipment is prolonged; and the photoelectric sensor can be effectively protected through the detection seat.

Description

Technical Field

[0001] The utility model relates to the technical field of one - way valve monitoring equipment, in particular to a one - way valve valve state monitoring device for a vacuum pump suction pipeline. Background Technique

[0002] At present, multiple vacuum pumps are used in a vacuum pump room. Each independent vacuum pump is equipped with an independent one - way valve above the suction pipeline of the pump body. Its function is to prevent the working fluid inside the pump body from being sucked back into the dust removal tank, causing pipeline blockage and affecting the normal operation of the equipment.

[0003] In the static state, the one - way valve uses the elastic force of its own compression spring to push the valve core to the closed state. When the vacuum pump equipment starts to run, the one - way valve overcomes the elastic force of the compression spring pushing the valve core through the pressure difference between the suction pipeline and the main pipeline during equipment operation for switching between open and closed states, that is: when the vacuum pump is in the shutdown state, the valve core is pushed up to the closed state by the elastic force of the compression spring, and the suction pipeline is isolated from the main pipeline. When the equipment starts to run, the negative pressure of the pump body suction pipeline is greater than the negative pressure of the main pipeline, and the valve core overcomes the elastic force of the compression spring and presses down to the open state. At this time, the suction pipeline of the pump body is connected to the main pipeline.

[0004] In the related technology, since the valve core of the one - way valve is inside the valve body, the compression spring pushing up inside the valve body and the fixed connecting rod of the valve core are easily polluted by the air flow inside the pipeline, resulting in attenuation of the compression spring elastic force, fracture until failure. At the same time, the air flow pollution is also likely to cause rust on the surface of the connecting rod, resulting in blockage of the valve core switch and inflexible movement, thereby affecting the normal operation of the valve body. Content of the Utility Model

[0005] In order to overcome at least one of the above - mentioned defects of the prior art, the utility model provides a one - way valve valve state monitoring device for a vacuum pump suction pipeline. Due to the valve core and the compression spring pushing up being easily polluted by the air flow, there are problems such as attenuation of the compression spring elastic force, fracture, or blockage of the valve core switch, resulting in inflexible movement, thereby affecting the normal operation of the valve body.

[0006] The technical solution adopted by the utility model to solve its problems is as follows:

[0007] A one - way valve valve state monitoring device for a vacuum pump suction pipeline includes a one - way valve body. A valve core is provided in the middle of the one - way valve body. A valve body frame is provided on the upper side of the one - way valve body. A central hole is provided in the middle of the valve body frame. A fixed connecting rod is slidably connected in the central hole. A compression spring is sleeved on one end of the fixed connecting rod located on the valve core. A plurality of detection seats are provided on the side of the valve body frame facing the valve core. The detection seats are connected to photoelectric sensors through sliding limit components.

[0008] Through the above solution, the photoelectric sensor can effectively detect the state changes of the detection valve core and the compression spring respectively, thereby effectively detecting problems such as attenuation and fracture of the compression spring force and blockage of the valve core switch, further improving the operation stability and service life of the vacuum pump equipment, and can effectively protect the photoelectric sensor through the detection seat.

[0009] Further, a groove body is provided in the detection seat, the groove body penetrates through two adjacent sides of the detection seat, and an L-shaped cover plate for covering the groove body is fixedly connected to the detection seat, and the L-shaped cover plate is made of a transparent material.

[0010] Through the above further solution, by providing an L-shaped transparent cover plate on the detection seat, the internal photoelectric sensor can be effectively protected from the influence of the external environment, which helps to ensure the long-term stable operation of the photoelectric sensor. Using an L-shaped cover plate made of a transparent material ensures that the photoelectric sensor can still work normally even when covered by the cover plate, and will not affect the transmission of its photoelectric signal due to the presence of the cover plate.

[0011] Further, the sliding limit assembly includes two strip plates and two U-shaped blocks. The two strip plates are respectively arranged on opposite sides of the groove body, and the two U-shaped blocks are respectively arranged on opposite sides of the photoelectric sensor, and the U-shaped blocks are slidably connected to the strip plates.

[0012] Through the above further solution, the sliding connection between the U-shaped block and the strip plate ensures that the photoelectric sensor can be stably positioned in the detection seat, avoiding displacement caused by vibration or other external forces, thereby ensuring the accuracy of monitoring.

[0013] Further, a limiting member is provided on the strip plate, a limiting groove is provided in the U-shaped block, and the limiting groove is clamped with the limiting member.

[0014] Further, the limiting member includes a limiting convex block and a limiting spring. A limiting groove is provided on the strip plate, the limiting convex block is slidably connected in the limiting groove, the limiting spring is arranged in the limiting groove, one end of the limiting spring is fixedly connected to the limiting convex block, and the other end is fixedly connected to the bottom of the limiting groove, and the limiting convex block is clamped with the limiting groove.

[0015] Through the above further solution, the limiting convex block is clamped with the limiting groove on the U-shaped block, which can ensure that the photoelectric sensor will not move easily in the detection seat. The function of the limiting spring is to make the limiting convex block return to the initial position when there is no external force. In this way, even if the photoelectric sensor moves slightly under the action of an external force, it can return to the original position through the action of the limiting spring. This design simplifies the installation process of the photoelectric sensor and is also more convenient when maintenance or replacement is required.

[0016] Further, a plurality of wire grooves are provided on the valve body frame facing the valve core side. The number of wire grooves is the same as the number of detection seats. A finishing sleeve plate is fixedly installed on the valve body frame at the position of the wire grooves, and the finishing sleeve plate is in an arc shape.

[0017] Through the above further solution, by setting wire grooves with the same number as the detection seats, the cables connecting the photoelectric sensors can be effectively organized and managed, avoiding cable chaos, reducing interference and wear between cables. The installation of the finishing sleeve plate can provide additional protection for the cables, preventing the cables from being damaged by mechanical damage or environmental factors. The arc-shaped finishing sleeve plate can better adapt to the spatial structure of the valve body frame and make full use of the limited space.

[0018] Further, it further includes a data processing unit, a central monitoring system and a user interface. The data processing unit is electrically connected to the photoelectric sensor, the data processing unit is electrically connected to the central monitoring system, and the central monitoring system is electrically connected to the user interface.

[0019] Through the above further solution, the photoelectric sensor can real-time monitor the state changes of the valve core and the compression spring, and convert the signals into digital information through the data processing unit, and then transmit them to the central monitoring system, realizing all-weather real-time monitoring, improving the reliability of the equipment. Then, through real-time feedback information, the abnormal state of the valve core can be detected and processed in time, thereby reducing the downtime and maintenance costs. By setting the user interface, the operator can view the states of the valve core and the compression spring through the user interface, and can take corresponding measures in time when receiving an alarm, discover and solve problems in time, and do a good job in the preventive maintenance of the monitoring device.

[0020] In summary, a valve state monitoring device for a vacuum pump suction pipeline check valve provided by the present utility model has the following technical effects:

[0021] 1. The photoelectric sensor can effectively detect the state changes of the detection valve core and the compression spring respectively, thereby effectively detecting problems such as compression spring elastic force attenuation, fracture and valve core switch blockage, and further improving the operation stability and service life of the vacuum pump equipment.

[0022] 2. The detection seat effectively protects the photoelectric sensor, ensuring the long-term stable operation of the photoelectric sensor without being affected by the outside world.

[0023] 3. The sliding limit assembly cooperates with the limit piece, which can ensure that the photoelectric sensor will not move easily in the detection seat, and can simplify the installation process of the photoelectric sensor, and is also more convenient when maintenance or replacement is required. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments.

[0025] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0026] Figure 2 It is a schematic diagram of the partial structure of the present utility model.

[0027] Figure 3 It is a schematic diagram of the exploded structure of the partial assembly of the present utility model.

[0028] Figure 4 It is a schematic diagram of the sectional structure of the limiting member of the present utility model.

[0029] In the figure: 1, one-way valve body; 11, valve core; 2, valve body frame; 21, central hole; 211, fixed connecting rod; 212, compression spring; 22, wire groove; 23, finishing sleeve plate; 231, fastening block; 24, fastening threaded hole; 241, fastening bolt; 3, detection seat; 31, groove body; 32, L-shaped cover plate; 321, protective block; 33, locking threaded hole; 331, locking bolt; 4, sliding limiting assembly; 41, strip plate; 411, limiting groove; 42, U-shaped block; 421, limiting groove; 5, photoelectric sensor; 6, limiting member; 61, limiting convex block; 62, limiting spring. Specific embodiments

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0031] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model 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, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0032] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations. In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0033] Embodiment 1:

[0034] Referring to Figures 1 - 4 As shown, a one-way valve valve state monitoring device for a vacuum pump suction pipeline includes a one-way valve body 1. A valve core 11 is provided in the middle of the one-way valve body 1. A valve body frame 2 is provided on the upper side of the one-way valve body 1. A central hole 21 is provided in the middle of the valve body frame 2. A fixed connecting rod 211 is slidably connected in the central hole 21. A compression spring 212 is sleeved on one end of the fixed connecting rod 211 located on the valve core 11. A plurality of detection seats 3 are provided on the side of the valve body frame 2 facing the valve core 11. An optoelectronic sensor 5 is provided in the detection seat 3. The optoelectronic sensor 5 can effectively detect the state changes of the valve core 11 and the compression spring 212 respectively, so as to effectively detect problems such as the attenuation and fracture of the elastic force of the compression spring 212 and the blockage of the opening and closing of the valve core 11, thereby improving the operation stability and service life of the vacuum pump equipment, and the optoelectronic sensor 5 can be effectively protected through the detection seat 3.

[0035] Among them, a groove body 31 is provided in the detection seat 3. The groove body 31 penetrates through two adjacent sides of the detection seat 3. An L-shaped cover plate 32 for covering the groove body 31 is fixedly connected to the detection seat 3. The L-shaped cover plate 32 is made of a transparent material. Preferably, the L-shaped cover plate 32 is an acrylic plate, which has the advantages of good light transmission performance and high hardness. Thus, the optoelectronic sensor 5 can clearly and effectively detect the state changes of the valve core 11 and the compression spring 212 through the transparent cover plate, and can effectively protect the internal optoelectronic sensor 5 from the influence of the external environment, which helps to ensure the long-term stable operation of the optoelectronic sensor 5.

[0036] Specifically, a plurality of protective blocks 321 are provided at the end parts of both sides of the L-shaped cover plate 32. Protective holes are provided on the protective blocks 321. A plurality of locking threaded holes 33 are provided on the detection seat 3. The L-shaped cover plate 32 is fixedly installed on the detection seat 3 through a locking bolt 331 passing through the protective hole and being threadedly connected with the locking threaded hole 33.

[0037] On both opposite side surfaces within the slot body 31 of the detection base 3, strip plates 41 are provided. On both opposite sides of the photoelectric sensor 5, U-shaped blocks 42 are provided. The U-shaped blocks 42 are slidably connected to the strip plates 41. On the strip plates 41, limit slots 411 are provided. A limit projection 61 is slidably connected within the limit slots 411. A limit spring 62 is also provided within the limit slots 411. One end of the limit spring 62 is fixedly connected to the limit projection 61, and the other end is fixedly connected to the bottom of the limit slot 411. A limit groove 421 is provided within the U-shaped block 42. The limit projection 61 is engaged with the limit groove 421. The engagement between the limit projection 61 and the limit groove 421 on the U-shaped block 42 can ensure that the photoelectric sensor 5 will not move easily within the detection base 3. The function of the limit spring 62 is to make the limit projection 61 return to the initial position without external force. In this way, even if the photoelectric sensor 5 moves slightly under external force, it can be restored to the original position through the action of the limit spring 62. This design simplifies the installation process of the photoelectric sensor 5 and is also more convenient when maintenance or replacement is required.

[0038] On one side of the valve body frame 2 facing the valve core 11, a plurality of wire grooves 22 are provided. The number of the wire grooves 22 is the same as the number of the detection bases 3. At the positions of the wire grooves 22 on the valve body frame 2, an organizing sleeve plate 23 is fixedly installed. The organizing sleeve plate 23 is arc-shaped. By providing wire grooves 22 with the same number as the detection bases 3, the cables connecting the photoelectric sensors 5 can be effectively organized and managed, avoiding the cables being in a mess, reducing the interference and wear between the cables. The installation of the organizing sleeve plate 23 can provide additional protection for the cables, preventing the cables from being damaged mechanically or due to environmental factors. The arc-shaped organizing sleeve plate 23 can better adapt to the spatial structure of the valve body frame 2 and make full use of the limited space.

[0039] Specifically, a plurality of fastening blocks 231 are provided at both symmetric sides of the organizing sleeve plate 23. Fastening holes are provided on the fastening blocks 231. A plurality of fastening threaded holes 24 are provided on both sides of the wire grooves 22 on the valve body frame 2. The organizing sleeve plate 23 is fixedly installed on the valve body frame 2 by a fastening bolt 241 passing through the fastening hole and being threadedly connected to the fastening threaded hole 24. Thus, the organizing sleeve plate 23 can effectively guide and organize the cables and provide protection for them.

[0040] It further includes a data processing unit, a central monitoring system and a user interface. The data processing unit is electrically connected to the photoelectric sensor 5, the data processing unit is electrically connected to the central monitoring system, and the central monitoring system is electrically connected to the user interface. The data processing unit is arranged outside the one-way valve. By setting up this data processing unit, it can receive the signal of the photoelectric sensor 5 and convert it into digital information about the states of the valve core 11 and the compression spring 212, and then transmit this digital information to the central monitoring system, so as to be able to display the real-time states of the valve core 11 and the compression spring 212 and issue an alarm when an abnormal state is detected. At the same time, by setting up the user interface, the operator can view the states of the valve core 11 and the compression spring 212 through this user interface and take corresponding measures in time when receiving the alarm.

[0041] The implementation principle of the valve state monitoring device for the one-way valve of the vacuum pump suction pipeline in the embodiment of the present application is as follows:

[0042] By using the photoelectric sensor 5 to monitor the state changes of the valve core 11 and the compression spring 212 all-weather in real time, the feedback information of the photoelectric signal is sent into the data processing unit. Then the data processing unit receives the feedback information and converts it into digital information about the states of the valve core 11 and the compression spring 212, and then transmits this digital information to the central monitoring system, so as to be able to display the real-time states of the valve core 11 and the compression spring 212 and issue an alarm when an abnormal state is detected. At the same time, by using the user interface, the operator can view the states of the valve core 11 and the compression spring 212 through this user interface and take corresponding measures in time when receiving the alarm, discover and solve problems in time, and do a good job in the preventive maintenance of this monitoring device.

[0043] As mentioned above, the above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present utility model should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claimed rights.

Claims

1. A device for monitoring the valve state of a one-way valve in a vacuum pump suction pipeline, comprising a one-way valve body (1), wherein a valve core (11) is provided in the middle of the one-way valve body (1), and characterized in that: A valve body frame (2) is provided on the upper side of the one-way valve body (1), a center hole (21) is provided in the middle of the valve body frame (2), a fixed connecting rod (211) is slidably connected in the center hole (21), the fixed connecting rod (211) is located on one end of the valve core (11) and is sleeved with a compression spring (212), a plurality of detection seats (3) are provided on the side of the valve body frame (2) facing the valve core (11), and the detection seats (3) are connected to the photoelectric sensor (5) via a sliding limit assembly (4).

2. A device for monitoring the state of a check valve in a vacuum pump suction pipeline according to claim 1, characterized in that: A groove body (31) is provided in the detection seat (3), and the groove body (31) passes through two adjacent sides of the detection seat (3). An L-shaped cover plate (32) for covering the groove body (31) is fixedly connected to the detection seat (3), and the L-shaped cover plate (32) is made of a transparent material.

3. A device for monitoring the state of a check valve in a vacuum pump suction pipeline according to claim 2, characterized in that: The sliding limit assembly (4) comprises two strips (41) and two U-shaped blocks (42); the two strips (41) are respectively arranged on opposite sides of the groove body (31); the two U-shaped blocks (42) are respectively arranged on opposite sides of the photoelectric sensor (5); and the U-shaped blocks (42) are slidably connected to the strips (41).

4. A device for monitoring the state of a check valve in a vacuum pump suction pipeline according to claim 3, characterized in that: A limiting member (6) is provided on the strip plate (41), a limiting groove (421) is provided in the U-shaped block (42), and the limiting groove (421) is engaged with the limiting member (6).

5. A device for monitoring the state of a check valve in a vacuum pump suction pipeline according to claim 4, characterized in that: The limiting member (6) comprises a limiting protrusion (61) and a limiting spring (62); a limiting groove (411) is provided on the strip plate (41); the limiting protrusion (61) is slidably connected in the limiting groove (411); the limiting spring (62) is arranged in the limiting groove (411); one end of the limiting spring (62) is fixedly connected to the limiting protrusion (61) and the other end is fixedly connected to the bottom of the limiting groove (411); the limiting protrusion (61) is clamped with the limiting groove (421).

6. A device for monitoring the state of a check valve in a vacuum pump suction pipeline according to claim 1, characterized in that: The valve body frame (2) is provided with a plurality of wire grooves (22) on the side facing the valve core (11), the number of the wire grooves (22) being the same as the number of the detection seats (3), and a tidying sleeve (23) is fixedly installed on the valve body frame (2) at the wire grooves (22), and the tidying sleeve (23) is in an arc shape.

7. A device for monitoring the state of a check valve in a vacuum pump suction pipeline according to claim 6, characterized in that: It also includes a data processing unit, a central monitoring system and a user interface, wherein the data processing unit is electrically connected to the photoelectric sensor (5), the data processing unit is electrically connected to the central monitoring system, and the central monitoring system is electrically connected to the user interface.

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