Environmental protection monitoring safety protection device and method

Abstract

The invention relates to the technical field of environmental protection, in particular to an environmental protection monitoring safety protection device and method.The device comprises a main body, the main body is provided with a connector, a communicating cavity and a movable cavity are formed in the main body, the communicating cavity is communicated with the connector, and a plug used for plugging the connector is arranged in the communicating cavity; a driving assembly used for driving the blocking head to move is arranged in the movable cavity. The driving assembly comprises a controller, a cross-shaped rod, a rotating wheel and a rotating piece used for driving the rotating wheel to rotate, and the controller is used for controlling the rotating piece to rotate. The rotating part is fixedly connected to the inner side wall of the main body; an output shaft of the rotating part is coaxially and fixedly connected with the rotating wheel; a poke rod is eccentrically and fixedly connected to the side, away from the rotating piece, of the rotating wheel. The cross rod is located in the movable cavity and is in transverse sliding fit. The clamping assembly and the inflation assembly are used for conducting double sealing on the joint connecting position, the sealing effect is improved, the device can adapt to different joint shapes and sizes, and the universality of the device is enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of environmental protection, and particularly relates to an environmental monitoring safety protection device and method. Background Art

[0002] Environmental monitoring and protection technologies are crucial in modern society, covering aspects such as environmental data collection, monitoring, assessment, and protection. These technologies are of great significance for understanding the environmental situation, predicting environmental change trends, formulating corresponding environmental protection policies and standards, and taking countermeasures to protect the environment and ensure sustainable development.

[0003] In the prior art, when collecting environmental data, a direct sampling method is usually adopted. When collecting media with relatively high risks, there is usually a lack of protective measures, resulting in the leakage of dangerous media. For example, when collecting toxic, harmful, or high-temperature gases, if the sampling interface is not tightly sealed or the equipment is damaged, these dangerous media may be directly exposed to the environment, causing environmental pollution.

[0004] In summary, how to solve the problem of lack of protective measures and possible leakage when using the direct sampling method to sample media with relatively high risks in the prior art has become a difficult problem that urgently needs to be solved in the current field. Therefore, it is necessary to propose an environmental monitoring safety protection device and method. Summary of the Invention

[0005] To solve the above problems, the present invention provides an environmental monitoring safety protection device and method. The clamping assembly can continuously clamp the sealing ring to ensure that the interface always maintains close contact. At the same time, the inflation assembly is used to further enhance the tightness between the sealing ring and the external connecting pipeline, effectively preventing possible leakage or pollution during the sampling process; for sampling media with relatively high risks, it can effectively improve the reliability of safety protection and the accuracy of sample collection.

[0006] To achieve the above object, the technical solution of the present invention is as follows: An environmental monitoring safety protection device includes a main body. The main body is provided with an interface. A communication chamber and a movable chamber are opened inside the main body. The communication chamber is communicated with the interface, and a plug head for blocking the interface is arranged in the communication chamber; a driving assembly for driving the plug head to move is arranged in the movable chamber.

[0007] The driving assembly includes a controller, a cross bar, a rotating wheel, and a rotating member for driving the rotation of the rotating wheel. The controller is used to control the rotation of the rotating member. The rotating member is fixedly connected to the inner side wall of the main body, and the output shaft of the rotating member is coaxially and fixedly connected to the rotating wheel. An eccentrically fixed connecting rod is provided on the side of the rotating wheel away from the rotating member. The cross bar is horizontally slidably fitted in the moving chamber. A groove for the sliding of the connecting rod is formed at the vertical end of the cross bar. One end of the cross bar close to the communicating chamber extends into the communicating chamber and is fixedly connected to the plugging head.

[0008] A sealing ring is fixedly connected at the interface. The sealing ring is made of an elastic material, and a clamping assembly for clamping the sealing ring is provided on the main body.

[0009] An airbag is embedded in the side wall of the sealing ring, and an inflation assembly for inflating the airbag is further provided in the moving chamber.

[0010] The bottom of the communicating chamber is communicated with a collection assembly for storing samples.

[0011] The technical principle of the above solution is as follows:

[0012] The rotating member drives the rotation of the rotating wheel. Since the connecting rod is fixedly connected to the rotating wheel and the groove for the movement of the connecting rod is formed at the vertical end of the cross bar, and the cross bar is horizontally slidably fitted in the moving chamber, the rotating wheel can drive the connecting rod to revolve around the rotating wheel. During the revolution, the cross bar is driven to reciprocate. When the cross bar moves, the plugging head is driven to move, so as to realize the opening and closing of the interface by the plugging head. After opening, the communicating chamber is communicated with the interface, and the external fluid flows into the collection assembly through the interface to realize the collection of samples. And during the opening process, the clamping assembly can continuously clamp the sealing ring, so as to reduce the diameter of the sealing ring and make the sealing ring fit the interface connection more closely. The inflation assembly can be used to inflate the inside of the airbag, so that the sealing ring is further pressed against the interface connection, thereby further improving the sealing performance of the interface connection and enabling the sampling to be carried out safely.

[0013] The above solution has the following beneficial effects:

[0014] 1. In the present invention, the controller controls the action of the rotating member, so that the rotating wheel and the connecting rod can stably drive the cross bar to reciprocate, thereby realizing the opening and closing of the interface by the plugging head. During the opening process, the clamping assembly can continuously clamp the sealing ring to ensure that the interface always maintains close contact. At the same time, the inflation assembly is used to further enhance the tightness between the sealing ring and the external communication pipeline, effectively preventing possible leakage or pollution during the sampling process. For sampling media with greater danger, the reliability of safety protection and the accuracy of sample collection can be effectively improved.

[0015] 2. The present invention inflates the inside of the airbag through the inflation component, further compressing the sealing ring to make it fit more tightly against the edge of the interface. This dual sealing mechanism not only improves the sealing effect but also can adapt to different interface shapes and sizes, enhancing the versatility of the device.

[0016] 3. Through the linkage of various components, the present invention realizes the protection of the interface. Only one power component is needed to complete the opening and sealing of the interface, thus reducing costs.

[0017] Furthermore, the collection component includes a collection box which is detachably connected to the outer bottom wall of the main body; a through hole communicating with the collection box is opened at the bottom of the communication chamber, and a solenoid valve is connected to the through hole. The controller is used to control the operation of the solenoid valve.

[0018] Beneficial effects: Through the design of the collection box, the collected samples can be stored, facilitating subsequent analysis; through the detachable design, users can clean or replace the collection box, reducing internal pollution caused by long-term use.

[0019] Furthermore, the clamping component includes connecting rods circumferentially and fixedly connected to the transverse ends of the cross rods. An opening for the connecting rods to move is opened in the movable chamber; straight rods are also circumferentially and fixedly connected to the outer wall of the main body, and clamping rods are hinged to the ends of the straight rods far from the main body; the ends of the connecting rods far from the cross rods all penetrate through the straight rods and are hinged to hinge rods, and the ends of the hinge rods far from the connecting rods are all hinged to the adjacent clamping rods.

[0020] Beneficial effects: Since the connecting rods are fixedly connected to the cross rods, the other ends of the connecting rods penetrate through the straight rods and are hinged to hinge rods, and the other ends of the hinge rods are hinged to the clamping rods, and the clamping rods are hinged to the straight rods; therefore, the cross rods can drive the connecting rods to move synchronously. When the connecting rods move, the clamping rods can be tightened or enlarged outward through the hinge rods. When tightened, pressure will be exerted on the sealing ring, enabling the sealing ring to seal the interface connection, effectively preventing interface leakage, and thus improving the safety of sampling.

[0021] Furthermore, the inflation component includes a piston cylinder and a rubber piston. The piston cylinder is fixedly connected to the inner side wall of the movable chamber, and the rubber piston is in transverse sliding fit with the inner wall of the piston cylinder; the end of the cross rod far from the plug head extends into the piston cylinder and is fixedly connected to the rubber piston. An input pipe and an output pipe are connected to the side of the piston cylinder far from the cross rod; the end of the input pipe far from the piston cylinder communicates with the outside of the main body, and the end of the output pipe far from the piston cylinder communicates with the airbag; one-way valves are connected to the joints of the piston cylinder with the input pipe and the output pipe, and the flow directions of the one-way valves are all towards the end of the output pipe far from the piston cylinder.

[0022] Beneficial effects: Since the rubber piston is fixedly connected to the cross rod, and the rubber piston and the inner wall of the piston cylinder slide in a transverse manner, the reciprocating motion of the rubber piston can be driven by the movement of the cross rod, and the reciprocating motion of the rubber piston generates negative pressure suction or releases negative pressure thrust. Since the piston cylinder is connected with an input pipe and an output pipe, and the output pipe is connected with the airbag, when the rubber piston reciprocates, external air can be transmitted to the inside of the airbag, thereby inflating the airbag and expanding the airbag, thereby further increasing the tightness of the sealing ring and further improving the reliability of sampling.

[0023] Furthermore, the groove is arc-shaped, and the arc-shaped protrusion faces the connecting chamber; the groove is used to increase the movement stroke of the cross rod.

[0024] Beneficial effect: Through the arc-shaped design of the groove, when the toggle rod moves to the arc-shaped protrusion of the groove during the process of opening the plug, the arc-shaped design can push the vertical end of the cross rod toward the outside of the rotating wheel, thereby further increasing the movement stroke of the cross rod, further increasing the clamping force on the clamping rod and the inflation volume of the airbag, making the interface connection more sealed, thereby improving the safety of collection.

[0025] Furthermore, the clamping rods are all installed at an angle, and the installation height of the clamping rods close to the sealing ring is lower than the installation height of the clamping rods close to the straight rod.

[0026] Beneficial effect: The design of the inclined installation of the clamping rod can utilize the lever principle to enable the end close to the sealing ring to generate a greater pressing force when pressure is applied, thereby further improving the sampling safety.

[0027] Furthermore, the connecting rods are all in an inverted L shape, and the connecting rods are used to transmit the movement force of the cross rod.

[0028] Beneficial effect: The inverted L-shaped design of the connecting rod can effectively transmit the reciprocating force of the cross rod to the hinged rod, thereby achieving the clamping or opening of the clamping rod.

[0029] Furthermore, the cross-section of the plug is trapezoidal, with the short side of the trapezoid facing the interface.

[0030] Beneficial effect: The trapezoidal cross-section design of the plugging head can increase the contact area between the trapezoidal slope and the interface, thereby further increasing the sealing effect of the plugging head, reducing the risk of leakage, and thus improving safety during sampling.

[0031] Furthermore, the horizontal end of the cross rod is also fixedly connected to a limiting block, and the limiting block is slidably matched with the inner side wall of the main body at a side away from the cross rod.

[0032] Beneficial effect: Through the design of the limit block, the movement trajectory of the cross rod can be effectively limited, so that the cross rod does not deflect when moving.

[0033] Furthermore, an environmental monitoring safety protection method comprises the following steps:

[0034] S1. Before sampling of environmental monitoring samples is required, the interface is connected to the external pipeline; when sampling is required, the rotating wheel is driven to rotate by the rotating member, and the toggle rod drives the cross rod to slide horizontally, driving the plug head away from the interface position.

[0035] S2. After the plug leaves the interface, the connecting chamber is connected with the external pipeline, and the solenoid valve is opened; the external fluid flows into the collection box through the solenoid valve.

[0036] S3. When the plug opens the interface, the cross rod drives the clamping rod to clamp the sealing ring through the connecting rod and the hinged rod; at the same time, the piston cylinder inflates the airbag to seal the connection between the sealing ring and the external pipe.

[0037] S4. After the sampling is completed, the rotating wheel is driven to reverse through the rotating part, and the toggle rod drives the cross rod to slide in the opposite direction, so that the plugging head is used to seal the interface.

[0038] Beneficial effects: The plugging head is driven by the cross rod to open and close the interface; and during the opening process, the clamping rod clamps the sealing ring and the piston cylinder inflates the airbag to achieve a double sealing effect on the interface connection. Ensure that the interface always maintains good sealing, effectively prevent leakage or contamination, and thus improve the safety of sample collection.

[0039] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a front cross-sectional view of the environmental monitoring safety protection device of the present invention.

[0041] Figure 2 It is a top cross-sectional view of the environmental monitoring safety protection device of the present invention.

[0042] Figure 3 It is an axonometric diagram of the driving component in the environmental monitoring safety protection device of the present invention.

[0043] Figure 4 It is a schematic diagram of the flow of the environmental monitoring safety protection method of the present invention.

[0044] The figure marks in the drawings of the specification include: 1. main body; 2. plug; 3. cross rod; 4. rotating wheel; 5. rotating motor; 6. toggle rod; 7. sealing ring; 8. connecting rod; 9. straight rod; 10. clamping rod; 11. hinged rod; 12. piston cylinder; 13. rubber piston. DETAILED DESCRIPTION

[0045] The following is further described in detail through specific implementation methods:

[0046] Embodiment 1:

[0047] As attached Figures 1 - 3 As shown: an environmental monitoring safety protection device, an environmental monitoring safety protection device, includes a main body 1, the main body 1 has an interface, a connecting chamber and a movable chamber are opened inside the main body 1, the connecting chamber is connected to the interface, a plugging head 2 for sealing the interface is provided in the connecting chamber; a driving component for driving the plugging head 2 to move is provided in the movable chamber.

[0048] The driving assembly includes a controller, a cross rod 3, a rotating wheel 4 and a rotating part for driving the rotating wheel 4 to rotate. In this embodiment, the rotating part is a rotating motor 5, and the controller is used to control the rotating motor 5 to rotate; the rotating motor 5 is fixedly connected to the inner wall of the main body 1 with screws, and the output shaft of the rotating motor 5 is coaxially fixed and clamped with the rotating wheel 4; the other side of the rotating wheel 4 is fixedly connected with an eccentric screw with a toggle rod 6, and the cross rod 3 is located in the movable chamber for horizontal sliding cooperation; the vertical end of the cross rod 3 is provided with a groove for the sliding of the toggle rod 6, and the right end of the cross rod 3 extends into the connecting chamber and is fixedly bonded to the plug 2.

[0049] A sealing ring 7 is fixedly bonded at the interface, and the sealing ring 7 is made of an elastic material. In this embodiment, the elastic material is silicone. The main body 1 is provided with a clamping assembly for clamping the sealing ring 7. The clamping assembly includes a connecting rod 8 fixedly connected to the horizontal end of the cross rod 3 by a circumferential screw, and an opening for the connecting rod 8 to move is opened in the movable chamber; a straight rod 9 is also fixedly connected to the outer wall of the main body 1 by a circumferential screw, and the other end of the straight rod 9 is hinged to a clamping rod 10; the right end of the connecting rod 8 passes through the straight rod 9 and is hinged to a hinged rod 11, and the other end of the hinged rod 11 is hinged to the clamping rod 10 adjacent to it.

[0050] An airbag is embedded and installed in the side wall of the sealing ring 7, and an inflation assembly for inflating the airbag is also provided in the movable chamber. The inflation assembly includes a piston cylinder 12 and a rubber piston 13. The piston cylinder 12 is fixedly connected to the inner wall of the movable chamber by screws, and the rubber piston 13 is laterally slidably matched with the inner wall of the piston cylinder 12; the left end of the cross rod 3 extends into the piston cylinder 12 and is fixedly bonded to the rubber piston 13, and the left side of the piston cylinder 12 is connected with an input pipe and an output pipe; the other end of the input pipe is connected to the outside of the main body 1, and the other end of the output pipe is connected to the airbag; the connection between the piston cylinder 12 and the input pipe and the output pipe is connected with a one-way valve, and the flow direction of the one-way valve is toward the end of the output pipe away from the piston cylinder 12.

[0051] The bottom of the communicating chamber is connected to a collecting assembly for storing samples. The collecting assembly includes a collecting box (not shown), which is detachably connected to the outer bottom wall of the main body 1; a through hole connected to the collecting box is opened at the bottom of the communicating chamber, and a solenoid valve is connected at the through hole, and a controller is used to control the operation of the solenoid valve. Through the design of the collecting box, the collected samples can be stored for subsequent analysis; the detachable design allows the user to clean or replace the collecting box to reduce internal contamination caused by long-term use.

[0052] The specific implementation process is as follows:

[0053] First, before taking environmental monitoring samples, the interface is connected to the external pipeline, and the sealing ring 7 is installed at the connection. The rotating motor 5 drives the rotating wheel 4 to rotate. Since the rotating wheel 4 is fixedly connected with the toggle rod 6, the vertical end of the cross rod 3 is provided with a groove for the toggle rod 6 to move, and the cross rod 3 is located in the movable chamber and slides horizontally; therefore, the toggle rod 6 can be driven by the rotating wheel 4 to revolve around the rotating wheel 4, and the cross rod 3 is driven to reciprocate during the revolution. When the cross rod 3 moves, the plugging head 2 is driven to move, thereby realizing the opening and closing of the plugging head 2 to the interface.

[0054] by Figure 1 For example, when the rotating wheel 4 drives the toggle rod 6 to rotate clockwise to its left side, the cross rod 3 is driven by the toggle rod 6 to move to the left side. When moving to the left side, the plug 2 is separated from the interface, thereby opening the interface; conversely, when the rotating wheel 4 drives the toggle rod 6 to rotate clockwise to its right side, the cross rod 3 is driven by the toggle rod 6 to move to the right side, thereby closing the interface through the plug 2. And due to the difference in internal and external pressure difference environments, after the plug 2 is opened, the connecting chamber is connected to the interface, and the solenoid valve is started to open at this time, and the external fluid flows into the collection box through the interface and the connecting chamber to realize the collection of samples.

[0055] In addition, when the cross bar 3 drives the plug 2 to open, the connecting rod 8 is fixedly connected to the cross bar 3 by screws at the horizontal end, and the other end of the connecting rod 8 passes through the straight rod 9 and is hinged to the hinge rod 11, and the other end of the hinge rod 11 is hinged to the clamping rod 10, and the clamping rod 10 is hinged to the straight rod 9; therefore, the connecting rod 8 can be driven to move synchronously by the cross bar 3, and when the connecting rod 8 moves, the clamping rod 10 can be tightened or enlarged outwards through the hinge rod 11. Figure 1For example, when the cross bar 3 drives the connecting rod 8 to move to the left, the hinged rod 11 is pulled to generate tension on the clamping rod 10, so that the clamping rod 10 is tightened; conversely, when the cross bar 3 drives the connecting rod 8 to move to the right, the hinged rod 11 is pushed to expand the clamping rod 10 outward, so that the clamping rod 10 is enlarged outward. When the clamping rod 10 is tightened, pressure is applied to the sealing ring 7, so that the sealing ring 7 seals the interface connection, which can effectively prevent interface leakage and improve the safety of sampling.

[0056] At the same time, since the rubber piston 13 is fixedly bonded to the cross rod 3 and the rubber piston 13 slides laterally with the inner wall of the piston cylinder 12, the cross rod 3 can drive the reciprocating motion of the rubber piston 13, and the reciprocating motion of the rubber piston 13 generates negative pressure suction or releases negative pressure thrust. Since the piston cylinder 12 is connected to an input pipe and an output pipe, and the output pipe is connected to the airbag, the rubber piston 13 can transmit external air to the inside of the airbag when it reciprocates. Figure 1 For example, when the cross rod 3 drives the rubber piston 13 to move to the right, suction is generated to suck the external air medium into the piston cylinder 12; conversely, when the cross rod 3 drives the rubber piston 13 to move to the left, the gas inside the piston cylinder 12 is pushed into the output tube, and the output tube inflates the airbag to expand the airbag, so that the sealing ring 7 is further attached to the interface connection, thereby further improving the sealing of the interface connection, thereby improving the safety of sampling.

[0057] In the prior art, direct sampling is usually used when sampling. When collecting fluid media with higher risks, external power devices need to be added for sealing, which increases the cost of sampling. In this embodiment, the controller controls the action of the rotating motor 5, so that the rotating wheel 4 and the toggle rod 6 can stably drive the cross rod 3 to reciprocate, thereby realizing the opening and closing of the interface of the plug 2. During the opening process, the clamping rod 10 can continuously clamp the sealing ring 7 to ensure that the interface always maintains close contact. At the same time, the piston cylinder 12 is used to inflate the airbag to further enhance the tightness between the sealing ring 7 and the external connecting pipe, effectively preventing possible leakage or contamination during the sampling process; for sampling media with higher risks, it can effectively improve the reliability of safety protection and the accuracy of sample collection.

[0058] Through the adjustment of the clamping rod 10 and the use of the form of inflating the inside of the airbag, the sealing ring 7 can be further compressed to make it fit the edge of the interface more tightly. This double sealing mechanism not only improves the sealing effect, but also can adapt to different interface shapes and sizes, enhancing the versatility of the device. Through the linkage of various components, the protection of the interface connection is achieved, and only one power component is needed to complete the opening and sealing of the interface, thereby reducing costs.

[0059] Example 2:

[0060] As shown in the attached Figure 1 and Figure 3 , the difference from the above embodiment is that the groove is arc-shaped, and the arc-shaped convex part faces the communication chamber; the groove is used to increase the movement stroke of the cross bar 3.

[0061] The specific implementation process is as follows: Through the arc-shaped design of the groove, when the toggle rod 6 moves to the arc-shaped convex part of the groove during the opening process of the plug 2, the vertical end of the cross bar 3 can be pushed towards the outside of the rotating wheel 4 through the arc-shaped design, so that the movement stroke of the cross bar 3 is further increased, further increasing the clamping force on the clamping rod 10 and the inflation volume of the airbag, making the interface connection more sealed and further improving the safety of sampling.

[0062] Example 3:

[0063] As shown in the attached Figure 1 and Figure 2 , the difference from the above embodiment is that the clamping rods 10 are all installed obliquely, and the installation height of the right end of the clamping rod 10 is lower than that of the left end.

[0064] The specific implementation process is as follows: The design of the clamping rod 10 installed obliquely can utilize the lever principle to generate a greater pressing force at the end close to the sealing ring 7 when pressure is applied.

[0065] Example 4:

[0066] As shown in the attached Figure 1 and Figure 2 , the difference from the above embodiment is that the connecting rods 8 are all in an inverted L shape, and the connecting rods 8 are used to transmit the movement force of the cross bar 3.

[0067] The specific implementation process is as follows: The design of the connecting rod 8 in an inverted L shape can effectively transmit the force of the reciprocating movement of the cross bar 3 to the articulated rod 11; thereby realizing the clamping or opening of the clamping rod 10.

[0068] Example 5:

[0069] As shown in the attached Figure 1 and Figure 2 , the difference from the above embodiment is that the cross section of the plug 2 is trapezoidal, and the short side of the trapezoid faces the interface.

[0070] The specific implementation process is as follows: The design of the cross section of the plug 2 being trapezoidal can increase the contact area between the trapezoidal inclined surface and the interface, thereby further increasing the sealing effect of the plug 2 and further increasing the safety of sampling.

[0071] Example 6:

[0072] The difference from the above embodiments is that a limiting block is also fixedly connected to the transverse end of the cross bar 3 by screws, and the other side of the limiting block is slidably matched with the inner side wall of the main body 1.

[0073] The specific implementation process is as follows: Through the design of the limiting block, the movement track of the cross bar 3 can be effectively limited, so that the cross bar 3 does not deflect when moving.

[0074] Embodiment 7:

[0075] As shown in the appendix Figure 4 A method for environmental monitoring safety protection, which is different from the above embodiments, includes the following steps:

[0076] S1. Before sampling environmental monitoring samples, connect the interface to the external pipeline; when sampling is required, drive the rotating wheel 4 to rotate by rotating the motor 5, and the dialing rod 6 drives the cross bar 3 to slide horizontally, driving the plug 2 away from the interface position.

[0077] S2. After the plug 2 leaves the interface, the communication chamber is communicated with the external pipeline, and the solenoid valve is opened; the external fluid flows into the collection box through the solenoid valve.

[0078] S3. When the plug 2 opens the interface, the cross bar 3 drives the clamping rod 10 to clamp the sealing ring 7 through the connecting rod 8 and the hinge rod 11; at the same time, the piston cylinder 12 inflates the airbag to seal the connection between the sealing ring 7 and the external pipeline.

[0079] S4. After the sampling is completed, drive the rotating wheel 4 to reverse by rotating the motor 5, and the dialing rod 6 drives the cross bar 3 to slide in the reverse direction, and the plug 2 seals the interface.

[0080] The specific implementation process is as follows: Drive the plug 2 to move through the cross bar 3, so as to realize the opening and closing of the interface; and during the opening process, through the clamping of the sealing ring 7 by the clamping rod 10 and the inflation of the airbag by the piston cylinder 12, a double sealing effect on the interface connection is realized. Ensure that the interface always maintains good sealing performance, effectively prevent leakage or pollution, and thus improve the safety of sampling.

[0081] Obviously, the above embodiments are only examples given for clear illustration, and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom still fall within the protection scope of the present invention.

Claims

1. An environmental monitoring safety protection device, comprising a main body (1), the main body (1) is provided with an interface, characterized in that, There is a communication chamber and an activity chamber inside the main body (1). The communication chamber is communicated with the interface, and a plug (2) for blocking the interface is arranged in the communication chamber; a driving component for driving the plug (2) to move is arranged in the activity chamber; The driving component includes a controller, a cross rod (3), a rotating wheel (4) and a rotating member for driving the rotating wheel (4) to rotate. The controller is used to control the rotation of the rotating member; the rotating member is fixedly connected to the inner side wall of the main body (1), and the output shaft of the rotating member is coaxially and fixedly connected to the rotating wheel (4); a shifting rod (6) is eccentrically fixedly connected to the side of the rotating wheel (4) away from the rotating member. The cross rod (3) is horizontally slidably matched in the activity chamber; a groove for the shifting rod (6) to slide is opened at the vertical end of the cross rod (3), and one end of the cross rod (3) close to the communication chamber extends into the communication chamber and is fixedly connected to the plug (2); A sealing ring (7) is fixedly connected to the interface, and the sealing ring (7) is made of an elastic material; a clamping component for clamping the sealing ring (7) is arranged on the main body (1); An airbag is embedded in the side wall of the sealing ring (7), and an inflation component for inflating the airbag is also arranged in the activity chamber; The bottom of the communication chamber is communicated with a collection component for storing samples.

2. The environmental monitoring safety protection device according to claim 1, wherein, The collection component includes a collection box, and the collection box is detachably connected to the outer bottom wall of the main body (1); a through hole communicated with the collection box is opened at the bottom of the communication chamber, and a solenoid valve is communicated at the through hole. The controller is used to control the operation of the solenoid valve.

3. The environmental monitoring safety protection device according to claim 2, wherein The clamping component includes a connecting rod (8) fixedly connected circumferentially to the horizontal end of the cross rod (3). An opening for the connecting rod (8) to move is opened in the activity chamber; a straight rod (9) is also fixedly connected circumferentially to the outer wall of the main body (1). Clamping rods (10) are hinged to one end of the straight rod (9) away from the main body (1); one end of the connecting rod (8) away from the cross rod (3) penetrates through the straight rod (9) and is hinged to a hinged rod (11), and one end of the hinged rod (11) away from the connecting rod (8) is hinged to the adjacent clamping rod (10).

4. The environmental monitoring safety protection device according to claim 3, characterized in that, The inflation component includes a piston cylinder (12) and a rubber piston (13). The piston cylinder (12) is fixedly connected to the inner side wall of the activity chamber, and the rubber piston (13) is horizontally slidably matched with the inner wall of the piston cylinder (12); one end of the cross rod (3) away from the plug (2) extends into the piston cylinder (12) and is fixedly connected to the rubber piston (13). An input pipe and an output pipe are communicated on one side of the piston cylinder (12) away from the cross rod (3); one end of the input pipe away from the piston cylinder (12) is communicated with the outside of the main body (1), and one end of the output pipe away from the piston cylinder (12) is communicated with the airbag; one-way valves are communicated at the joints of the piston cylinder (12) with the input pipe and the output pipe, and the flow directions of the one-way valves are all towards one end of the output pipe away from the piston cylinder (12).

5. The environmental monitoring safety protection device according to claim 4, characterized in that, The groove is arc-shaped, and the arc-shaped convex part faces the communication chamber; the groove is used to increase the movement stroke of the cross rod (3).

6. The environmental monitoring safety protection device according to claim 5, characterized in that, The clamping rods (10) are all inclined, and the installation height of one end of the clamping rod (10) close to the sealing ring (7) is lower than that of one end close to the straight rod (9).

7. The environmental monitoring safety protection device according to claim 6, wherein, The connecting rods (8) are all in an inverted L shape, and the connecting rods (8) are used to transmit the movement force of the cross rod (3).

8. The environmental monitoring safety protection device according to claim 7, characterized in that, The plug (2) has a trapezoidal cross section, with the short side of the trapezoid facing the interface.

9. The environmental monitoring safety protection device according to claim 8, characterized in that, The horizontal end of the cross rod (3) is also fixedly connected to a limiting block, and the limiting block is slidably matched with the inner side wall of the main body (1) on the side away from the cross rod (3).

10. An environmental monitoring safety protection method, which is carried out based on the environmental monitoring safety protection device described in any one of the above claims 1-9, and is characterized in that, The following steps are involved: S1. Before sampling of environmental monitoring samples is required, the interface is connected to the external pipeline; when sampling is required, the rotating wheel (4) is driven to rotate by the rotating member, and the toggle rod (6) drives the cross rod (3) to slide horizontally, so that the plug (2) is driven to leave the interface position; S2, after the plug (2) leaves the interface, the connecting chamber is connected with the external pipeline, and the solenoid valve is opened; the external fluid flows into the collection box through the solenoid valve; S3, when the plug (2) opens the interface, the cross rod (3) drives the clamping rod (10) to clamp the sealing ring (7) through the connecting rod (8) and the hinge rod (11); at the same time, the piston cylinder (12) inflates the airbag to seal the connection between the sealing ring (7) and the external pipe; S4. After the sampling is completed, the rotating wheel (4) is driven to rotate in the reverse direction by the rotating member, and the toggle rod (6) drives the cross rod (3) to slide in the reverse direction, so that the plugging head (2) blocks the interface.

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