Gas sampling device for VOC monitoring

Abstract

The utility model discloses a gas sampling device for VOC (volatile organic compound) monitoring, which comprises a VOC gas detector main body, a connecting port, a fixed sampling pipe and a movable sampling pipe, the connecting port is correspondingly arranged on the upper surface of the VOC gas detector main body, the bottom end of the fixed sampling pipe is communicated with and sleeved on the outer side of the connecting port, and the movable sampling pipe is arranged on the outer side of the connecting port. According to the gas sampling device for VOC monitoring, a sampling pipe can be firmly clamped and fixed, the situation that the sampling pipe falls off and is damaged during sampling is avoided, the service life of the sampling pipe is prolonged, and the sampling pipe is prevented from falling off and being damaged during sampling. The length of the sampling pipe can be adjusted according to use requirements, auxiliary protection can be carried out on the whole device, the situation that the whole device falls off and is damaged due to the fact that the hand of an operator slides for operation is avoided, convenience is brought to sampling detection operation, and the use requirements of a user are well met.

Description

Technical Field

[0001] The utility model relates to the technical field of gas sampling, in particular to a gas sampling device for VOC monitoring. Background Art

[0002] VOC is the abbreviation of volatile organic compounds. In the ordinary sense, VOC refers to volatile organic compounds, but in the environmental sense, it refers to a class of active volatile organic compounds, that is, the type of volatile organic compounds that can cause harm. It is well known that sampling operations are required before detecting VOC gases. At present, portable handheld VOC sampling and detection devices are often used for sampling and detection.

[0003] However, when using existing handheld VOC sampling and detection devices, the sampling tube is usually directly inserted into the sampling and detection device. The sampling tube is prone to fall off during sampling, which can easily cause the sampling tube to fall and be damaged, shortening the service life of the sampling tube and also bringing adverse effects to the sampling and detection operation. Moreover, the sampling tube of the existing device is mostly a fixed structure with a fixed length, which is not convenient for adjusting the length according to the needs of use. Furthermore, the existing device has an overall protective structure, which is easy to fall due to the operator's slipping hand, resulting in the falling and damage of the entire device. Utility Model Content

[0004] In order to overcome the technical defects in the prior art and effectively solve the technical problems in the background technology, the utility model provides the following technical solutions:

[0005] A gas sampling device for VOC monitoring comprises a VOC gas detector body, a connecting port, a fixed sampling tube and a movable sampling tube, wherein the connecting port is correspondingly arranged on the upper surface of the VOC gas detector body, the bottom end of the fixed sampling tube is connected and sleeved on the outside of the connecting port, a two-way reciprocating component is fixedly installed on one side of the upper surface of the VOC gas detector body, and clamps corresponding to the connecting port and the fixed sampling tube are symmetrically fixedly installed on two opposite sides of the two-way reciprocating component, the bottom end of the movable sampling tube is slidably connected to the inner wall of the top end of the fixed sampling tube, and the outer sides of the fixed sampling tube and the movable sampling tube are correspondingly fixedly installed with lifting and lowering adjustment components, and an auxiliary protection component is fixedly installed on the bottom of the VOC gas detector body.

[0006] As an optimal technical solution of the utility model, the bidirectional reciprocating assembly includes a motor, a fixed plate, a movable rod, a guide rod and a bidirectional lead screw. There are two fixed plates, and the two fixed plates are respectively fixed at the left and right ends of the upper surface of the VOC gas detector body. The bidirectional lead screw is rotatably connected between the two fixed plates, and the guide rod is fixed between the two fixed plates. The bidirectional lead screw and the guide rod are parallel to each other. There are two movable rods, and the opposite ends of the bidirectional lead screw threads are respectively threadedly connected to the threaded holes on the sides of the two movable rods, and the guide rods are respectively slidably connected to the sliding holes on the sides of the two movable rods. The front ends of the two movable rods are respectively fixedly connected to the rear sides of the two splints, and the motor is fixed to the side of one of the fixed plates, and the output shaft of the motor is fixedly connected to the bottom end of the bidirectional lead screw.

[0007] As a preferred technical solution of the utility model, an arc-shaped clamping groove corresponding to the outer side of the fixed sampling tube is opened on the inner side of the clamping plate.

[0008] As an optimal technical solution of the utility model, the lifting and adjustment assembly includes a fixed ring, a movable ring and an electric lifting rod. The fixed ring is fixedly installed on the lower part of the outside of the fixed sampling tube, the movable ring is fixedly installed on the upper part of the outside of the movable sampling tube, and the electric lifting rod is correspondingly fixedly installed between the fixed ring and the movable ring.

[0009] As a preferred technical solution of the utility model, the auxiliary protection component includes an elastic band and an elastic bracelet, the top end of the elastic band is fixedly installed on the bottom of the VOC gas detector body, and the bottom end of the elastic band is fixedly installed with an elastic bracelet.

[0010] As a preferred technical solution of the utility model, positioning holes are symmetrically provided on the upper surface of the VOC gas detector body at both sides of the connection port, and fixed blocks are symmetrically fixedly installed on the lower edges of the left and right sides of the fixed sampling tube, and a positioning rod that is movably plugged into the corresponding positioning hole is fixedly installed on the bottom of the fixed block.

[0011] As a preferred technical solution of the utility model, a socket is provided on the outside of the fixing block, a connecting block is fixedly installed on the outer edge of the bottom of the clamping plate, and an insert rod movably connected to the socket is fixedly installed on the inside of the connecting block.

[0012] As a preferred technical solution of the utility model, a display screen and control buttons are sequentially arranged on the front side of the VOC gas detector body, and hand-held arc grooves are symmetrically opened on the left and right sides of the VOC gas detector body.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the gas sampling device for VOC monitoring has a reasonable and practical structure, is easy to operate, can firmly clamp and fix the sampling tube, avoid the sampling tube from falling and being damaged due to falling off during sampling, and increase the service life of the sampling tube. Moreover, the length of the sampling tube can be adjusted according to the needs of use, and the device as a whole can be assisted with protection, avoid the device as a whole from falling and being damaged due to the operator's hand slipping and falling, which brings convenience to the sampling and detection operation and well meets the user's use needs. Specifically, the sampling tube can be clamped and fixed through the joint cooperation of the two-way reciprocating component, the clamp and the arc-shaped clamping groove, and the length of the sampling tube can be adjusted through the joint cooperation of the fixed sampling tube, the movable sampling tube and the lifting and adjusting component, and the device as a whole can be assisted with protection through the auxiliary protection component. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 This is a schematic diagram of the structure of the main body of the VOC gas detector of the utility model.

[0016] Figure 3 It is a schematic diagram of the partially disassembled structure of the utility model.

[0017] Figure 4 It is a structural schematic diagram of the bidirectional reciprocating component of the utility model.

[0018] In the figure: VOC gas detector body 1, connection port 2, fixed sampling tube 3, two-way reciprocating component 4, motor 41, fixed plate 42, movable rod 43, guide rod 44, two-way screw 45, clamping plate 5, arc clamping groove 6, movable sampling tube 7, lifting adjustment component 8, fixed ring 81, movable ring 82, electric lifting rod 83, auxiliary protection component 9, elastic belt 91, elastic bracelet 92, positioning hole 10, fixed block 11, positioning rod 12, jack 13, connecting block 14, plug rod 15, display screen 16, control button 17, hand-held arc groove 18. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4The utility model provides a technical solution: a gas sampling device for VOC monitoring, comprising a VOC gas detector body 1, a connecting port 2, a fixed sampling tube 3 and a movable sampling tube 7, the connecting port 2 is correspondingly arranged on the upper surface of the VOC gas detector body 1, the bottom end of the fixed sampling tube 3 is connected and sleeved on the outside of the connecting port 2, a two-way reciprocating component 4 is fixedly installed on one side of the upper surface of the VOC gas detector body 1, and clamps 5 corresponding to the connecting port 2 and the fixed sampling tube 3 are symmetrically fixedly installed on the two sides of the two-way reciprocating component 4 in opposite directions, the bottom end of the movable sampling tube 7 is slidably connected to the inner wall of the top end of the fixed sampling tube 3, and the outer sides of the fixed sampling tube 3 and the movable sampling tube 7 are correspondingly fixedly installed with a lifting and adjusting component 8, and an auxiliary protection component 9 is fixedly installed on the bottom of the VOC gas detector body 1.

[0021] Further, such as Figure 4 As shown, the bidirectional reciprocating assembly 4 includes a motor 41, a fixed plate 42, a movable rod 43, a guide rod 44 and a bidirectional lead screw 45. There are two fixed plates 42, which are respectively fixed at the left and right ends of the upper surface of the VOC gas detector body 1. The bidirectional lead screw 45 is rotatably connected between the two fixed plates 42. The guide rod 44 is fixed between the two fixed plates 42. The bidirectional lead screw 45 and the guide rod 44 are parallel to each other. There are two movable rods 43, and the two opposite ends of the thread of the bidirectional lead screw 45 are respectively threadedly connected with the threaded holes on the sides of the two movable rods 43. The guide rods 44 are slidably connected to the sliding holes on the sides of the two movable rods 43 respectively, the front ends of the two movable rods 43 are fixedly connected to the corresponding rear sides of the two clamps 5 respectively, the motor 41 is fixed to the side of one of the fixed plates 42, and the output shaft of the motor 41 is fixedly connected to the bottom end of the bidirectional lead screw 45. The motor 41 drives the rotation of the bidirectional lead screw 45, and then drives the two movable rods 43 to move toward or away from each other, which can drive the two clamps 5 to move toward or away from each other, and can firmly clamp and fix the fixed sampling tube 3 plug-in sleeve arranged on the outside of the connection port 2.

[0022] Further, such as Figure 4 As shown, an arc-shaped clamping groove 6 corresponding to the outer side of the fixed sampling tube 3 is opened on the inner side of the clamping plate 5, and the arc-shaped clamping groove 6 facilitates the inner side of the clamping plate 5 and the outer side of the fixed sampling tube 3 to fit and clamp.

[0023] Further, such as Figure 3As shown, the lifting and adjusting assembly 8 includes a fixed ring 81, a movable ring 82 and an electric lifting rod 83. The fixed ring 81 is fixedly installed on the lower part of the outer side of the fixed sampling tube 3, the movable ring 82 is fixedly installed on the upper part of the outer side of the movable sampling tube 7, and the electric lifting rod 83 is correspondingly fixedly installed between the fixed ring 81 and the movable ring 82. The movable ring 82 is driven to move up and down by the electric lifting rod 83, which can drive the movable sampling tube 7 to move up and down in the fixed sampling tube 3, so that the length of the sampling tube can be adjusted according to the needs of use.

[0024] Further, such as Figure 1 As shown, the auxiliary protection component 9 includes an elastic band 91 and an elastic bracelet 92. The top end of the elastic band 91 is fixedly installed on the bottom of the VOC gas detector body 1, and the bottom end of the elastic band 91 is fixedly installed with an elastic bracelet 92. Through the elastic band 91 and the elastic bracelet 92, the entire device can be connected and fixed on the wrist of the user, thereby providing auxiliary protection for the entire device.

[0025] Further, such as Figure 2 As shown, the upper surface of the VOC gas detector body 1 is symmetrically provided with positioning holes 10 at the positions on both sides of the connection port 2. Figure 3 As shown, fixed blocks 11 are symmetrically fixedly installed on the lower edges of the left and right sides of the fixed sampling tube 3, and a positioning rod 12 that is movably connected with the positioning hole 10 is fixedly installed at the bottom of the fixed block 11. The positioning rod 12 at the bottom of the fixed block 11 is movably connected with the positioning hole 10, which can play an auxiliary positioning role when the fixed sampling tube 3 is installed.

[0026] Further, such as Figure 3 As shown, a plug hole 13 is provided on the outer side of the fixing block 11. Figure 4 As shown, a connecting block 14 is fixedly installed on the outer edge of the bottom of the splint 5, and an insertion rod 15 that is movably connected with the socket 13 is fixedly installed on the inner side of the connecting block 14. Through the movably connected connection between the insertion rod 15 on the inner side of the connecting block 14 and the socket 13, it can play a role in auxiliary clamping, fixing and limiting.

[0027] Further, such as Figure 2 As shown, a display screen 16 and a control button 17 are sequentially arranged on the front side of the VOC gas detector body 1, and hand-held arc grooves 18 are symmetrically opened on the left and right sides of the VOC gas detector body 1, which facilitate the user's hand holding and operation.

[0028] When using:

[0029] The motor 41 drives the two-way lead screw 45 to rotate, and then drives the two movable rods 43 to move toward or away from each other, which can drive the two clamping plates 5 to move toward or away from each other, and can firmly clamp and fix the fixed sampling tube 3 that is plugged into the outer side of the connecting port 2. The electric lifting rod 83 drives the movable ring 82 to move up and down, and can drive the movable sampling tube 7 to move up and down and slide in the fixed sampling tube 3, so that the length of the sampling tube can be adjusted according to the needs of use. The elastic belt 91 and the elastic bracelet 92 can be used to connect and fix the entire device to the wrist of the user, so as to provide auxiliary protection for the entire device.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gas sampling device for VOC monitoring, comprising a VOC gas detector body (1), a connection port (2), a fixed sampling tube (3) and a movable sampling tube (7), characterized in that: The connection port (2) is correspondingly arranged on the upper surface of the VOC gas detector body (1); the bottom end of the fixed sampling tube (3) is connected and sleeved on the outside of the connection port (2); a two-way reciprocating component (4) is fixedly installed on one side of the upper surface of the VOC gas detector body (1); clamping plates (5) corresponding to the connection port (2) and the fixed sampling tube (3) are symmetrically fixedly installed on the two opposite sides of the two-way reciprocating component (4); the bottom end of the movable sampling tube (7) is slidably connected to the inner wall of the top end of the fixed sampling tube (3); the outer sides of the fixed sampling tube (3) and the movable sampling tube (7) are correspondingly fixedly installed with lifting and lowering adjustment components (8); and the bottom of the VOC gas detector body (1) is fixedly installed with an auxiliary protection component (9).

2. The gas sampling device for VOC monitoring according to claim 1, characterized in that: The bidirectional reciprocating assembly (4) comprises a motor (41), a fixed plate (42), a movable rod (43), a guide rod (44) and a bidirectional lead screw (45). The number of the fixed plates (42) is two, and the two fixed plates (42) are respectively fixed to the left and right ends of the upper surface of the VOC gas detector body (1). The bidirectional lead screw (45) is rotatably connected between the two fixed plates (42), and the guide rod (44) is fixed between the two fixed plates (42). The bidirectional lead screw (45) and the guide rod (44) are parallel to each other. The movable rods (43) are two in number, the two opposite ends of the thread of the bidirectional lead screw (45) are respectively threadedly connected to the threaded holes on the sides of the two movable rods (43), the guide rods (44) are respectively slidably connected to the sliding holes on the sides of the two movable rods (43), the front ends of the two movable rods (43) are respectively fixedly connected to the rear sides of the two clamping plates (5), the motor (41) is fixed to the side of one of the fixed plates (42), and the output shaft of the motor (41) is fixedly connected to the bottom end of the bidirectional lead screw (45).

3. The gas sampling device for VOC monitoring according to claim 1, characterized in that: The inner side of the clamping plate (5) is provided with an arc-shaped clamping groove (6) corresponding to the outer side of the fixed sampling tube (3).

4. The gas sampling device for VOC monitoring according to claim 1, characterized in that: The lifting and adjusting assembly (8) comprises a fixed ring (81), a movable ring (82) and an electric lifting rod (83); the fixed ring (81) is fixedly mounted on the lower part of the outer side of the fixed sampling tube (3); the movable ring (82) is fixedly mounted on the upper part of the outer side of the movable sampling tube (7); and the electric lifting rod (83) is correspondingly fixedly mounted between the fixed ring (81) and the movable ring (82).

5. The gas sampling device for VOC monitoring according to claim 1, characterized in that: The auxiliary protection component (9) comprises an elastic band (91) and an elastic bracelet (92); the top end of the elastic band (91) is fixedly mounted on the bottom of the VOC gas detector body (1); and the bottom end of the elastic band (91) is fixedly mounted with the elastic bracelet (92).

6. The gas sampling device for VOC monitoring according to claim 1, characterized in that: Positioning holes (10) are symmetrically provided on the upper surface of the VOC gas detector body (1) at positions on both sides of the connection port (2); fixed blocks (11) are symmetrically fixedly installed on the lower edges of the left and right sides of the fixed sampling tube (3); and positioning rods (12) that are movably plugged into the positioning holes (10) are fixedly installed at the bottom of the fixed blocks (11).

7. The gas sampling device for VOC monitoring according to claim 6, characterized in that: The outer side of the fixing block (11) is provided with an insertion hole (13), the outer edge of the bottom of the clamping plate (5) is fixedly mounted with a connecting block (14), and the inner side of the connecting block (14) is fixedly mounted with an insertion rod (15) that is movably connected to the insertion hole (13).

8. The gas sampling device for VOC monitoring according to claim 1, characterized in that: A display screen (16) and a control button (17) are arranged in sequence on the front side of the VOC gas detector body (1), and hand-held arc grooves (18) are symmetrically provided on the left and right sides of the VOC gas detector body (1).

Images