Gas detection system with filtering structure

Abstract

The invention provides a gas detection system with a filtering structure, and belongs to the technical field of gas detection, the gas detection system comprises a gas circulation cylinder, the inner surface of the gas circulation cylinder is provided with a scraping plate, the inner surface of the scraping plate is provided with a filtering cover, the top of the gas circulation cylinder is in threaded connection with a gas detector, and the bottom of the gas circulation cylinder is provided with a combination assembly. The combined assembly comprises a first connecting cylinder and a second connecting cylinder, the first connecting cylinder comprises a first connecting cylinder body, a first displacement cover and a first fastening ring, the first displacement cover and the first fastening ring are movably arranged on the first connecting pipe head, and the first displacement cover is fixedly connected with the first fastening ring. And under the cooperation of the deformation clamping piece and the clamping groove, the connection position of the first connection cylinder and the second connection cylinder can be tightly closed, efficient combination is achieved in an embedded mode, and under the additional arrangement of the reinforcing assembly, the first connection cylinder and the second connection cylinder which are embedded can be prevented from being loosened due to stress.

Description

Technical Field

[0001] The present invention belongs to the technical field of gas detection, and particularly relates to a gas detection system with a filtering structure. Background Art

[0002] A pipeline gas detection system is a detection device used to detect the operation of gas in a pipeline. It can detect the gas concentration in real time online and output an electric current signal so that the staff can timely discover the gas leakage in the pipeline and avoid situations that affect the normal progress of work.

[0003] When a gas detection device is installed on a gas transmission channel, it is usually necessary to provide a branch pipe on the gas transmission channel and set threads on the branch pipe, and then install the gas detector on the branch pipe by means of thread fitting. For some gas transmission channels for temporary detection, the installation takes a long time and is rather troublesome. Each installation requires continuous rotation, which is very inconvenient and affects the smooth progress of work, lacking a quick disassembly and assembly structure.

[0004] Therefore, a gas detection system with a filtering structure is proposed. Summary of the Invention

[0005] The present invention provides a gas detection system with a filtering structure, aiming to solve the problems raised above.

[0006] An embodiment of the present invention provides a gas detection system with a filtering structure, including a gas flow cylinder, a scraper is installed on the inner surface of the gas flow cylinder, a filter cover is installed on the inner surface of the scraper, a gas detector is screwed on the top of the gas flow cylinder, and a combined component is installed at the bottom of the gas flow cylinder.

[0007] Furthermore, the combined component includes a first connecting cylinder and a second connecting cylinder. The first connecting cylinder includes a first connecting cylinder body, a displacement cover one and a fastening ring one. The displacement cover one and the fastening ring one are movably installed on the first connecting head. The displacement cover one and the fastening ring one are fixedly connected. The second connecting cylinder includes a second connecting cylinder body, a displacement cover two and a fastening ring two. The displacement cover two and the fastening ring two are movably installed on the second connecting cylinder body. The displacement cover two and the fastening ring two are fixedly connected. The first connecting cylinder and the second connecting cylinder are tightly installed. An interlocking locking component is installed at the tight joint of the first connecting cylinder and the second connecting cylinder. A reinforcing component is installed on the interlocking locking component. A constraint component for restricting the displacement cover one and the displacement cover two is sequentially installed on the first connecting cylinder body and the second connecting cylinder body;

[0008] The connecting barrel body 1 and the connecting barrel body 2 are tightly arranged, and a closed chamber is reserved at the closed position of the connecting barrel body 1 and the connecting barrel body 2. The liner 1 and the liner 2 are tightly embedded in the closed chamber of the connecting barrel body 1 and the connecting barrel body 2 in sequence. The connecting barrel body 1 and the connecting barrel body 2 are equipped with an execution component for pressing the liner 1 and the liner 2 to execute the embedding.

[0009] The execution component includes a variable port, a variable platform, a variable hoop 1 and a variable hoop 2. The outer surfaces of the connecting barrel body 1 and the connecting barrel body 2 are both reserved with a variable port, the variable port is connected to the closed chamber, the variable platform is movably installed in the variable port, the variable platform on the connecting barrel body 1 is fixedly connected to the liner 1, the variable platform on the connecting barrel body 2 is fixedly connected to the liner 2, the connecting barrel body 1 and the connecting barrel body 2 are sequentially movably installed with a variable hoop 1 and a variable hoop 2, the outer diameters of the variable hoop 1 and the variable hoop 2 are adapted to the inner diameters of the fastening ring 1 and the fastening ring 2, the variable hoop 1 and the variable hoop 2 are sequentially fixedly connected to the displacement cover 1 and the displacement cover 2, and a rebound component is installed on the variable hoop 1 and the variable hoop 2.

[0010] Furthermore, gaskets are arranged at the sealing parts of the variable platform and the variable port, and O-rings are arranged at the sealing surfaces of the liner 1 and the liner 2.

[0011] Furthermore, the interlocking locking assembly includes a deformation clamp and a clamping groove. The deformation clamp is arranged on the opposite side of the fastening ring 1 to the fastening ring 2. The deformation clamp is concave, and the bottom of the outer surface of the deformation clamp protrudes outward. The clamping groove is reserved on the fastening ring 2. The clamping groove is aligned and matched with the deformation clamp, and the clamping groove is clamped with the deformation clamp.

[0012] Furthermore, connecting platforms are arranged in sequence at the closed places of the end faces of the connecting cylinder body 1 and the connecting cylinder body 2, the connecting platform on the connecting cylinder body 1 is provided with circumferentially arranged restraining columns, and restraining column openings matching with the restraining columns are reserved on the connecting platform of the connecting cylinder body 2.

[0013] Furthermore, the reinforcement component includes a displacement chamber, three spiral beryllium copper wires and two guide rods. The displacement chamber is reserved on the fastening ring two at the outer periphery of the clamping groove. The guide rod two is movably installed in the displacement chamber. The guide rod two axially passes through the displacement chamber and extends into the clamping groove. The guide rod two fits in the door-shaped hole on the deformation clamping piece. A spacer is installed on the outer surface of the guide rod two inside the displacement chamber, and the spiral beryllium copper wire three is installed on the spacer. The movable end of the spiral beryllium copper wire three is fixedly connected to the inner surface of the displacement chamber.

[0014] Further, the constraint component includes a displacement port, a notch one, a notch two, a tensioning lead screw, a rotating table, a abutment, a helical beryllium copper wire two, a guiding port, a guiding seat and a supporting column. Displacement ports are reserved on both the displacement cover one and the displacement cover two. There are a pair of displacement ports which are arranged mirror-symmetrically. Notch one is reserved on the inner surfaces of the pair of displacement ports. On the outer surfaces of the connecting cylinder body one and the connecting cylinder body two located in the displacement port, a guiding port is reserved. Supporting columns are arranged on the inner surfaces of the pair of guiding ports. A guiding seat is movably arranged inside the supporting column. There are a pair of guiding seats which are arranged mirror-symmetrically. The guiding seat is clamped on the supporting column and is movably connected to the supporting column. Notch two is reserved on the outer surfaces of the pair of guiding seats. Notch two engages with notch one. The opposite side walls of the pair of guiding seats are inclined walls. A lead screw is rotated between the outer surfaces of the connecting cylinder body one and the connecting cylinder body two and between the pair of guiding seats. A abutment is threaded on the lead screw. A wedge-shaped opening is reserved on the abutment. One end of the lead screw passes through the displacement cover one and the displacement cover two. A rotating table is arranged at the movable end of the lead screw.

[0015] Further, the resilience component includes a guiding rod one and a helical beryllium copper wire one. A guiding rod one is arranged on the outer surface of the connecting table. The guiding rod one axially passes through the variable hoop one and the variable hoop two. A helical beryllium copper wire one is clamped on the guiding rod one. One end of the guiding rod one extends into the displacement cover one and the displacement cover two.

[0016] Further, a partition plate is arranged on the inner surface of the gas flow cylinder near the lower part of the scraper. An eccentric air hole is reserved at the bottom of the partition plate. A rotating shaft is centrally penetrated and arranged on the outer surface of the filter cover. The rotating shaft is rotatably connected to the scraper. And five vane plates are axially arranged at equal intervals between the outer surface of the rotating shaft and the inner surface of the filter cover. Filter holes are reserved on the outer surface of the filter cover. A through groove for the axial movement of the filter cover is reserved inside the scraper.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The present invention utilizes the constraint between the constraint column and the constraint column port, and with the cooperation of the deformation engaging part and the engaging groove, the connection between the connecting cylinder one and the connecting cylinder two can be tightened, and the high-efficiency combination is realized in an embedding mode. With the addition of the strengthening component, the connecting cylinder one and the connecting cylinder two connected by embedding can be prevented from being loosened under force. The guiding rod two in the strengthening component can restrain the deformation engaging part, increasing the reliability after the embedding and locking.

[0019] 2. The present invention utilizes the cooperation of the liner one and the liner two, enabling the liner one and the liner two to be embedded in the relative connecting cylinders respectively. The O-ring under pressure after the cooperation and tightening increases the tightness after the connection between the connecting cylinder one and the connecting cylinder two, greatly increasing the adjustment ability of the device in different environments. And with the gasket at the tight connection between the variable table and the variable port, the tightness of the closed chamber is ensured, preventing air leakage.

[0020] 3. By utilizing the coordinated linkage of the constraint components, the present invention enables the displacement cover to terminate the movement when reaching the closed position during the displacement process. Subsequently, when the operator connects the first connecting cylinder and the second connecting cylinder, adjustments can be made according to the connection state, thereby enhancing the convenience of the combination.

[0021] Other features and advantages of the present invention will be described in the subsequent description, and some of them will become obvious from the description or can be understood by implementing the present invention. The objectives and other advantages of the present invention can be achieved and obtained through the structures specifically pointed out in the description and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the description. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0023] Figure 1 is a schematic structural diagram of an embodiment of the present invention;

[0024] Figure 2 is a schematic external structural diagram of the gas flow cylinder of an embodiment of the present invention;

[0025] Figure 3 is a schematic internal structural diagram of the gas flow cylinder of an embodiment of the present invention;

[0026] Figure 4 is a schematic structural diagram of the combination component of an embodiment of the present invention;

[0027] Figure 5 is a schematic structural diagram of the position of the connection platform of an embodiment of the present invention;

[0028] Figure 6 is a schematic split structural diagram of an embodiment of the present invention;

[0029] Figure 7 is a sectional view of the combination component of an embodiment of the present invention;

[0030] Figure 8 is a schematic structural diagram of the position of the displacement port of an embodiment of the present invention;

[0031] Figure 9 is a schematic structural diagram of the position of the deformation clamping member of an embodiment of the present invention;

[0032] Figure 10 is an enlarged schematic diagram at X of an embodiment of the present invention;

[0033] Figure 11 is an enlarged schematic diagram at Y of an embodiment of the present invention;

[0034] Figure 12 is an enlarged schematic diagram at Z of an embodiment of the present invention;

[0035] Reference numerals: 1, gas flow cylinder; 2, partition plate; 3, eccentric air hole; 4, rotating shaft; 5, blade plate; 6, filter cover; 7, scraper; 8, gas detector; 9, combination assembly; 91, connecting cylinder body 1; 92, displacement cover 1; 93, fastening ring 1; 94, fastening ring 2; 95, displacement cover 2; 96, connecting cylinder body 2; 97, connecting platform; 98, changing platform; 99, constraint column opening; 910, changing opening; 911, constraint column; 912, changing hoop 1; 913, guiding rod 1; 914, helical beryllium copper wire 1; 915, changing hoop 2; 916, lining cylinder 1; 917, closed chamber; 918, lining cylinder 2; 919, displacement opening; 920, guiding seat; 921, guiding opening; 922, helical beryllium copper wire 2; 923, supporting column; 924, deformation clamping part; 927, displacement chamber; 928, helical beryllium copper wire 3; 929, clamping groove; 930, guiding rod 2; 931, tooth opening 1; 932, rotating platform; 933, abutting seat; 934, tooth opening 2; 935, lead screw; 936, connecting cylinder 1; 937, connecting cylinder 2. Detailed implementation manners

[0036] In order to make the objectives, technical solutions, and advantages of the technical solutions of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the specific embodiments of the present invention. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0037] Refer to Figures 1 - 3, A gas detection system with a filtering structure, including a gas flow cylinder 1. A scraper 7 is installed on the inner surface of the gas flow cylinder 1, and a partition plate 2 is installed near the lower part of the scraper 7 on the inner surface of the gas flow cylinder 1. An eccentric air hole 3 is reserved at the bottom of the partition plate 2. A filter cover 6 is installed on the inner surface of the scraper 7. A rotating shaft 4 is centrally penetrated and installed on the outer surface of the filter cover 6. The rotating shaft 4 is rotatably connected to the scraper 7, and five vane plates 5 are axially equidistantly installed between the outer surface of the rotating shaft 4 and the inner surface of the filter cover 6. Filter holes are reserved on the outer surface of the filter cover 6. A through groove for the axial movement of the filter cover 6 is reserved inside the scraper 7. A gas detector 8 is screwed to the top of the gas flow cylinder 1. A gas detection sensor is installed inside the gas detector 8. Here, the gas detection sensor can be one or more of a combustible gas sensor, a toxic gas sensor, a harmful gas sensor, etc. The gas detection sensor detects the gas and transmits the detection result to the staff through an external network, which is beneficial for the staff to detect the gas in the conveying channel. A combined component 9 is installed at the bottom of the gas flow cylinder 1;

[0038] When performing gas detection, one end of the combined component 9 is fixed on the conveying channel. The gas in the conveying channel passes through the combined component 9 and enters the gas flow cylinder 1. Under the diversion of the eccentric air hole 3, the gas blows axially and eccentrically towards the filter cover 6. The filter holes on the filter cover 6 filter out impurities. The filtered gas is squeezed into the inside of the filter cover 6. The gas exerts pressure on the vane plates 5. Under the rotation of the rotating shaft 4, the filter cover 6 rotates. The part of the filter cover 6 containing gas rotates to the upper part of the scraper 7 and is thrown out under the action of centrifugal force. The gas detector 8 detects the gas. As the filter cover 6 rotates, the scraper 7 scrapes off the impurities adsorbed on the outer side wall of the filter cover 6 to ensure the filtering effect of the filter cover 6 on the gas and prevent the filter holes on the filter cover 6 from being blocked.

[0039] Refer to Figures 4 - 12 , The combined component 9 includes a connecting cylinder one 936 and a connecting cylinder two 937. The connecting cylinder one 936 includes a connecting cylinder body one 91, a displacement cover one 92 and a fastening ring one 93. The displacement cover one 92 and the fastening ring one 93 are movably installed on the connecting cylinder body one 91. The top of the cylinder body one 91 is fixedly connected to the bottom of the gas flow cylinder 1. The displacement cover one 92 and the fastening ring one 93 are fixedly connected. The connecting cylinder two 937 includes a connecting cylinder body two 96, a displacement cover two 95 and a fastening ring two 94. The displacement cover two 95 and the fastening ring two 94 are movably installed on the connecting cylinder body two 96. The displacement cover two 95 and the fastening ring two 94 are fixedly connected. The connecting cylinder one 936 and the connecting cylinder two 937 are tightly installed. An engaging and locking component is installed at the tight joint of the connecting cylinder one 936 and the connecting cylinder two 937. A strengthening component is installed on the engaging and locking component. Constraint components for restricting the displacement cover one 92 and the displacement cover two 95 are successively installed on the connecting cylinder body one 91 and the connecting cylinder body two 96;

[0040] During operation, first connect the connecting cylinder 1 - 936 and the connecting cylinder 2 - 937. The operator pulls the displacement cover 2 - 95 and the displacement cover 1 - 92. At this moment, when the displacement cover 2 - 95 and the displacement cover 1 - 92 change, the fastening ring 1 - 93 and the fastening ring 2 - 94 are closed. At this moment, the fastening ring 1 - 93 and the fastening ring 2 - 94 activate the fitting and locking component. After the fitting and locking component is activated, the strengthening component acts and tightly locks the fitting and locking component.

[0041] When the displacement cover 2 - 95 and the displacement cover 1 - 92 change, the operator must make adjustments. At this moment, pull the traction restraint component to realize the restraint of the changing directions of the displacement cover 2 - 95 and the displacement cover 1 - 92.

[0042] The connecting cylinder body 1 - 91 and the connecting cylinder body 2 - 96 are tightly installed. Closed chambers 917 are reserved at the tight joints of the connecting cylinder body 1 - 91 and the connecting cylinder body 2 - 96. The lining cylinder 1 - 916 and the lining cylinder 2 - 918 are sequentially and tightly fitted in the closed chambers 917 of the connecting cylinder body 1 - 91 and the connecting cylinder body 2 - 96. An execution component for pressing the lining cylinder 1 - 916 and the lining cylinder 2 - 918 to perform fitting is installed on the connecting cylinder body 1 - 91 and the connecting cylinder body 2 - 96.

[0043] When the displacement cover 2 - 95 and the displacement cover 1 - 92 change, pull the execution component to move, so that the lining cylinder 1 - 916 and the lining cylinder 2 - 918 move, and the lining cylinder 2 - 918 is inserted into the connecting cylinder body 1 - 91, and the lining cylinder 1 - 916 is inserted into the connecting cylinder body 2 - 96 to achieve the purpose of sealing.

[0044] The execution component includes a changing port 910, a changing table 98, a changing hoop 1 - 912 and a changing hoop 2 - 915. Changing ports 910 are reserved on the outer surfaces of the connecting cylinder body 1 - 91 and the connecting cylinder body 2 - 96. The changing ports 910 are connected to the closed chambers 917. The changing table 98 is movably installed in the changing ports 910. The changing table 98 on the connecting cylinder body 1 - 91 is fixedly connected to the lining cylinder 1 - 916, and the changing table 98 on the connecting cylinder body 2 - 96 is fixedly connected to the lining cylinder 2 - 918. The changing hoop 1 - 912 and the changing hoop 2 - 915 are sequentially movably installed on the connecting cylinder body 1 - 91 and the connecting cylinder body 2 - 96. The outer diameters of the changing hoop 1 - 912 and the changing hoop 2 - 915 are adapted to the inner diameters of the fastening ring 1 - 93 and the fastening ring 2 - 94. The changing hoop 1 - 912 and the changing hoop 2 - 915 are sequentially fixedly connected to the displacement cover 1 - 92 and the displacement cover 2 - 95. A resilient component is installed on the changing hoop 1 - 912 and the changing hoop 2 - 915.

[0045] When the changing hoop 1 - 912 and the changing hoop 2 - 915 are pulled by the displacement cover 1 - 92 and the displacement cover 2 - 95, at this moment, the changing hoop 1 - 912 and the changing hoop 2 - 915 press the changing table 98, so that the changing table 98 vertically changes in the changing port 910, and then pulls the lining cylinder 1 - 916 and the lining cylinder 2 - 918 to fit with each other.

[0046] Refer to Figure 6 AndFigure 7 A gasket is installed at the closed part of the variable platform 98 and the variable port 910, and an O-ring is installed on the closed surface of the liner 1 916 and the liner 2 918.

[0047] The installation of the gasket and the O-ring allows the gasket and the O-ring to be compressed after the bushing 1 916 and the bushing 2 918 are engaged, thereby achieving the sealing of the engaging surface and preventing air leakage.

[0048] Reference Figure 9 The interlocking locking assembly includes a deformation clamping piece 924 and a clamping groove 929. The deformation clamping piece 924 is installed on the opposite side of the fastening ring 93 to the fastening ring 94. The deformation clamping piece 924 is concave, and the bottom of the outer surface of the deformation clamping piece 924 protrudes outward. The clamping groove 929 is reserved on the fastening ring 94. The clamping groove 929 is aligned and matched with the deformation clamping piece 924, and the clamping groove 929 is clamped with the deformation clamping piece 924.

[0049] After the fastening ring 1 93 and the fastening ring 2 94 are closed, the deformable clamp 924 is clamped into the clamping groove 929. At this time, the protrusion on the outer surface of the deformable clamp 924 is located outside the lower end of the fastening ring 2 94, so that the deformable clamp 924 is locked with the fastening ring 2 94.

[0050] Reference Figure 6 The connecting platform 97 is arranged in sequence at the closed part of the end surface of the connecting cylinder body 1 91 and the connecting cylinder body 2 96. The connecting platform 97 on the connecting cylinder body 1 91 is provided with circumferentially arranged restraining columns 911. The connecting platform 97 of the connecting cylinder body 2 96 is reserved with restraining column openings 99 that match the restraining columns 911.

[0051] When the connecting cylinder body 1 91 is connected with the connecting cylinder body 2 96 , the operator inserts the restraining column 911 into the restraining column opening 99 at this moment, so as to achieve the purpose of the first connection between the connecting cylinder body 1 91 and the connecting cylinder body 2 96 .

[0052] Reference Figure 9 and Figure 12 The reinforcement component includes a displacement chamber 927, a spiral beryllium copper wire 928 and a guide rod 930. The displacement chamber 927 is reserved on the fastening ring 94 at the outer periphery of the clamping groove 929. The guide rod 930 is movably installed in the displacement chamber 927. The guide rod 930 axially passes through the displacement chamber 927 and extends into the clamping groove 929. The guide rod 930 and the door-shaped hole on the deformation clamp 924 fit together. A spacer is installed on the outer surface of the guide rod 930 inside the displacement chamber 927, and a spiral beryllium copper wire 928 is installed on the spacer. The movable end of the spiral beryllium copper wire 928 is fixedly connected to the inner surface of the displacement chamber 927.

[0053] The deformation clamping part 924 is inserted into the clamping groove 929. At this time, the second guiding rod 930 is inserted into the hole of the deformation clamping part 924, so as to prevent the deformation clamping part 924 from being loosened under pressure.

[0054] Refer to Figure 8 , Figure 10 and Figure 11 , the constraint assembly includes a displacement port 919, a first tooth port 931, a second tooth port 934, a tensioning lead screw 935, a rotating table 932, a resisting seat 933, a second spiral beryllium copper wire 922, a guiding port 921, a guiding seat 920 and a supporting column 923. Displacement ports 919 are reserved on both the first displacement cover 92 and the second displacement cover 95. There are a pair of displacement ports 919 which are arranged symmetrically. First tooth ports 931 are reserved on the inner surfaces of the pair of displacement ports 919. Guiding ports 921 are reserved on the outer surfaces of the first connecting barrel body 91 and the second connecting barrel body 96 in the displacement ports 919. Supporting columns 923 are arranged on the inner surfaces of the pair of guiding ports 921. Guiding seats 920 are movably arranged in the supporting columns 923. There are a pair of guiding seats 920 which are arranged symmetrically. The guiding seats 920 are clamped on the supporting columns 923 and are movably connected to the supporting columns 923. Second tooth ports 934 are reserved on the outer surfaces of the pair of guiding seats 920. The second tooth ports 934 are engaged with the first tooth ports 931. The opposite side walls of the pair of guiding seats 920 are inclined walls. A lead screw 935 is rotated between the outer surfaces of the first connecting barrel body 91 and the second connecting barrel body 96 and between the pair of guiding seats 920. A resisting seat 933 is screwed on the lead screw 935. A wedge-shaped opening is reserved on the resisting seat 933. One end of the lead screw 935 passes through the first displacement cover 92 and the second displacement cover 95. A rotating table 932 is arranged at the movable end of the lead screw 935.

[0055] When the second displacement cover 95 and the first displacement cover 92 are displaced, at this time, the first fastening ring 93 and the second fastening ring 94 and the connecting platform 97 are closed. At this time, the operator rotates the rotating table 932 to rotate the lead screw 935. At this time, the axial displacement of the resisting seat 933 presses the guiding seat 920, so that the guiding seat 920 pulls the second tooth port 934 to engage with the first tooth port 931.

[0056] Refer to Figure 7 , the elastic component includes a first guiding rod 913 and a first spiral beryllium copper wire 914. The first guiding rod 913 is arranged on the outer surface of the connecting platform 97. The first guiding rod 913 axially passes through the first variable hoop 912 and the second variable hoop 915. The first spiral beryllium copper wire 914 is clamped on the first guiding rod 913. One end of the first guiding rod 913 extends into the first displacement cover 92 and the second displacement cover 95.

[0057] The first spiral beryllium copper wire 914 presses the first variable hoop 912 and the second variable hoop 915, so that when they are not assembled, the first lining cylinder 916 and the second lining cylinder 918 can rebound into the first connecting barrel body 91 and the second connecting barrel body 96.

[0058] Working principle: When the operator connects the connecting cylinder 1 (936) and the connecting cylinder 2 (937), first connect a pair of connecting platforms 97, and let the restraining column 911 be inserted into the restraining column opening 99. At this time, the operator pulls the displacement cover 1 (92) and the displacement cover 2 (95) until the variable hoop 1 (912) and the variable hoop 2 (915) are closed with the corresponding connecting platform 97. At this time, the fastening ring 1 (93) and the fastening ring 2 (94) are also closed, and the deformation clamping part 924 is inserted into the clamping groove 929 to achieve fastening. During the movement of the displacement cover 1 (92) and the displacement cover 2 (95), the variable hoop 1 (912) and the variable hoop 2 (915) pull the variable platform 98 to axially displace, so that the lining cylinder 1 (916) and the lining cylinder 2 (918) are engaged with each other, synchronously achieving the sealing operation. After the overall connection is achieved, the operator rotates the rotating platform 932 to make the tooth opening 2 (934) and the tooth opening 1 (931) bite, and then restrains and fastens the displacement cover 1 (92) and the displacement cover 2 (95).

[0059] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gas detection system with a filtering structure, comprising a gas flow cylinder, characterized in that: A scraper is arranged on the inner surface of the gas circulation tube, a filter cover is arranged on the inner surface of the scraper, the top of the gas circulation tube is connected with a gas detector, and a combination component is arranged on the bottom of the gas circulation tube.

2. The gas detection system with a filtering structure according to the claim, characterized in that: The combined component comprises a connecting tube 1 and a connecting tube 2, the connecting tube 1 comprises a connecting tube body 1, a displacement cover 1 and a fastening ring 1, the displacement cover 1 and the fastening ring 1 are movably mounted on the first connecting pipe head, the displacement cover 1 and the fastening ring 1 are fixedly connected, the connecting tube 2 comprises a connecting tube body 2, a displacement cover 2 and a fastening ring 2, the displacement cover 2 and the fastening ring 2 are movably mounted on the connecting tube body 2, the displacement cover 2 and the fastening ring 2 are fixedly connected, the connecting tube 1 and the connecting tube 2 are tightly mounted, a chimeric locking component is mounted at the closed position of the connecting tube 1 and the connecting tube 2, a reinforcing component is mounted on the chimeric locking component, and a constraint component for constraining the displacement cover 1 and the displacement cover 2 is sequentially mounted on the connecting tube body 1 and the connecting tube body 2; The connecting barrel body 1 and the connecting barrel body 2 are tightly arranged, and a closed chamber is reserved at the closed position of the connecting barrel body 1 and the connecting barrel body 2. The liner 1 and the liner 2 are tightly embedded in the closed chamber of the connecting barrel body 1 and the connecting barrel body 2 in sequence. The connecting barrel body 1 and the connecting barrel body 2 are equipped with an execution component for pressing the liner 1 and the liner 2 to execute the embedding. The execution component includes a variable port, a variable platform, a variable hoop 1 and a variable hoop 2. The outer surfaces of the connecting barrel body 1 and the connecting barrel body 2 are both reserved with a variable port, the variable port is connected to the closed chamber, the variable platform is movably installed in the variable port, the variable platform on the connecting barrel body 1 is fixedly connected to the liner 1, the variable platform on the connecting barrel body 2 is fixedly connected to the liner 2, the connecting barrel body 1 and the connecting barrel body 2 are sequentially movably installed with a variable hoop 1 and a variable hoop 2, the outer diameters of the variable hoop 1 and the variable hoop 2 are adapted to the inner diameters of the fastening ring 1 and the fastening ring 2, the variable hoop 1 and the variable hoop 2 are sequentially fixedly connected to the displacement cover 1 and the displacement cover 2, and a rebound component is installed on the variable hoop 1 and the variable hoop 2.

3. The gas detection system with a filtering structure according to claim 2, wherein: Gaskets are arranged at the closing places of the variable platform and the variable port, and O-rings are arranged at the closing surfaces of the liner 1 and the liner 2.

4. A gas detection system with a filtering structure according to claim 2, characterized in that: The interlocking locking assembly includes a deformation clamping part and a clamping groove. The deformation clamping part is installed on the opposite side of the fastening ring one to the fastening ring two. The deformation clamping part is concave, and the bottom of the outer surface of the deformation clamping part protrudes outward. The clamping groove is reserved on the fastening ring two. The clamping groove is aligned and matched with the deformation clamping part, and the clamping groove is clamped with the deformation clamping part.

5. The gas detection system with a filtering structure according to claim 2, wherein: Connecting platforms are arranged in sequence at the closed places of the end faces of the connecting cylinder body 1 and the connecting cylinder body 2, the connecting platform on the connecting cylinder body 1 is provided with circumferentially arranged restraining columns, and restraining column openings matching with the restraining columns are reserved on the connecting platform of the connecting cylinder body 2.

6. The gas detection system with a filtering structure according to claim 2, characterized in that: The reinforcement component includes a displacement chamber, three spiral beryllium copper wires and two guide rods. The displacement chamber is reserved on the fastening ring two at the outer periphery of the clamping groove. The guide rod two is movably installed in the displacement chamber. The guide rod two axially passes through the displacement chamber and extends into the clamping groove. The guide rod two fits in the door-shaped hole on the deformation clamping part. A spacer is installed on the outer surface of the guide rod two inside the displacement chamber, and the spiral beryllium copper wire three is installed on the spacer. The movable end of the spiral beryllium copper wire three is fixedly connected to the inner surface of the displacement chamber.

7. The gas detection system with a filtering structure according to claim 2, characterized in that: The constraint component includes a displacement port, a keyway one, a keyway two, a tension screw rod, a rotating table, a abutment seat, a helical beryllium copper wire two, a guiding port, a guiding seat and a supporting column. Displacement ports are reserved on both the displacement cover one and the displacement cover two. There are a pair of displacement ports which are arranged mirror-symmetrically. Keyway one is reserved on the inner surfaces of the pair of displacement ports. On the outer surfaces of the connecting cylinder body one and the connecting cylinder body two located in the displacement port, a guiding port is reserved. Supporting columns are arranged on the inner surfaces of the pair of guiding ports. A guiding seat is movably arranged inside the supporting column. There are a pair of guiding seats which are arranged mirror-symmetrically. The guiding seats are clamped on the supporting columns and are movably connected to the supporting columns. Keyway two is reserved on the outer surfaces of the pair of guiding seats. Keyway two engages with keyway one. The opposite side walls of the pair of guiding seats are inclined walls. A screw rod is rotated between the outer surfaces of the connecting cylinder body one and the connecting cylinder body two and between the pair of guiding seats. An abutment seat is threaded on the screw rod. A wedge-shaped opening is reserved on the abutment seat. One end of the screw rod passes through the displacement cover one and the displacement cover two. A rotating table is arranged at the movable end of the screw rod.

8. A gas detection system with a filtering structure according to claim 2 or 5, characterized in that: The rebound component includes a guiding rod one and a helical beryllium copper wire one. A guiding rod one is arranged on the outer surface of the connecting table. The guiding rod one axially passes through the variable clamp one and the variable clamp two. A helical beryllium copper wire one is clamped on the guiding rod one. One end of the guiding rod one extends into the displacement cover one and the displacement cover two.

9. A gas detection system with a filtering structure according to claim 1, characterized in that: A partition plate is arranged on the inner surface of the gas flow cylinder near the lower part of the scraper. An eccentric air hole is reserved at the bottom of the partition plate. A rotating shaft is centrally penetrated and arranged on the outer surface of the filter cover. The rotating shaft is rotatably connected to the scraper. Five blade plates are axially and equally spaced between the outer surface of the rotating shaft and the inner surface of the filter cover. Filter holes are reserved on the outer surface of the filter cover. A through groove for the axial movement of the filter cover is reserved inside the scraper.

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