A fuel cell type portable VOCs gas chromatograph

Abstract

The present invention discloses a fuel cell type portable VOCs gas chromatograph, comprising a bottom plate, a battery placement plate hinged on the left end of the bottom plate, a chromatograph body fixedly connected to the upper end of the bottom plate, a battery box placed on the upper end of the battery placement plate, two U-shaped groove blocks symmetrically arranged front and back are fixedly connected to the upper and lower positions of the left end of the chromatograph body, two U-shaped groove blocks located at the rear side and two U-shaped groove blocks located at the front are vertically inserted with connection plugs, and the two connection plugs are fixedly connected to the right positions of the front and rear ends of the battery box, and a power connection block is fixedly embedded at the left end of the chromatograph body, and a power connection groove is provided at one end of the power connection block close to the battery box. The advantages are: the present invention connects the fuel cell to the chromatograph body, which is convenient for disassembly and replacement of the fuel cell, and when carried and transported, the two are transported separately, and the fixing method is simple and convenient when used.

Description

Technical Field

[0001] The invention relates to the technical field of chromatographs, and in particular to a fuel cell type portable VOCs gas chromatograph. Background Art

[0002] Gas chromatograph is an instrument that uses chromatographic separation and detection technology to conduct qualitative and quantitative analysis of complex multi-component mixtures. It can usually be used to analyze organic matter in soil that is thermally stable and has a boiling point not exceeding 500°C, such as volatile organic compounds (VOCs), organochlorine, organophosphorus, polycyclic aromatic hydrocarbons, phthalates, etc.

[0003] In order to facilitate the detection of volatile organic compounds outdoors or in natural environments, a fuel cell is usually installed in a gas chromatograph to provide power for the gas chromatograph. In order to ensure the normal operation of the gas chromatograph for a long time, the volume of the gas chromatograph is usually set larger so that a large-capacity fuel cell can be installed. However, a large-capacity fuel cell will increase the overall weight and volume of the gas chromatograph, making it inconvenient to carry and move. In addition, during the movement, the gas chromatograph may be damaged naturally due to accidents with the fuel cell.

[0004] To solve the above problems, we proposed a fuel cell-based portable VOCs gas chromatograph. Summary of the invention

[0005] The purpose of the present invention is to solve the problems in the background technology and to propose a fuel cell type portable VOCs gas chromatograph.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a fuel cell type portable VOCs gas chromatograph, comprising a bottom plate, a battery placement plate is hinged on the left end of the bottom plate, a chromatograph body is fixedly connected to the upper end of the bottom plate, a battery box is placed on the upper end of the battery placement plate, two U-shaped groove blocks symmetrically arranged front and back are fixedly connected at the upper and lower positions of the left end of the chromatograph body, and connecting blocks are vertically inserted in the two U-shaped groove blocks located at the rear side and the two U-shaped groove blocks located at the front, and the two connecting blocks are fixedly connected to the right positions of the front and rear ends of the battery box, a power connection block is fixedly embedded at the left end of the chromatograph body, and a power connection groove is provided at one end of the power connection block close to the battery box, and a connecting block is penetrated at the right end of the battery box and at the corresponding position of the power connection block, and the right end of the connecting block is inserted in the power connection groove and electrically connected with the power connection block, and a fuel cell is arranged in the battery box, and the power output end of the fuel cell and one end of the connecting block located in the battery box are commonly connected with a power connection line;

[0007] The lower end of the bottom plate is provided with four rectangular positioning suction cups, and the positioning suction cup includes a fixing ring fixedly connected to the lower end of the bottom plate, and the lower end of the fixing ring is coaxially fixedly connected to a rubber disk, and a movable cavity is opened in the bottom plate and at the corresponding position of each positioning suction cup, and a movable rod is inserted into the movable cavity corresponding to each two left and right positions and is slidably inserted therein, and the left ends of the two movable rods penetrate the left inner wall of the movable cavity on the left side, and the right ends of the two movable rods are fixedly connected to a movable plate, and the movable plate is slidably connected to the inner wall of the movable cavity on the right side, and a spring is commonly fixedly connected between the movable plate and the corresponding right inner wall of the movable cavity, and the center position of the upper end of each rubber disk is fixedly connected to a vertical rod, and a sliding hole is opened on the bottom wall of each movable cavity and at the corresponding position of the vertical rod, and the upper end of the vertical rod is inserted in the through hole, and a fixed sleeve block is fixedly sleeved on the two movable rods and in each movable cavity, and a connecting rope is commonly fixedly connected between the lower end of each fixed sleeve block and the upper end of the corresponding vertical rod.

[0008] In the above-mentioned fuel cell type portable VOCs gas chromatograph, the front and rear ends of the connecting block located in the battery box are fixedly connected to sliding rods, and sliding grooves are horizontally opened on the front and rear inner walls of the battery box at the same height as the sliding rods. The ends of the two sliding rods away from the connecting block are respectively slidably connected in the corresponding sliding grooves, and a driving mechanism is provided in the battery box.

[0009] In the above-mentioned fuel cell type portable VOCs gas chromatograph, the driving mechanism includes a sleeve plate fixedly connected to the upper end of the connecting plug block, a threaded rod is horizontally penetrated and threadedly connected to the sleeve plate, the right end of the threaded rod is rotatably connected to the right inner wall of the battery box, and two end plates spaced apart on the left and right are fixedly connected to the top wall of the battery box, the left end of the threaded rod penetrates the end plate on the right and is rotatably connected to the end plate on the left, a first bevel gear is fixedly sleeved on the threaded rod and positioned between the two end plates, a second bevel gear is vertically meshed with the upper end of the first bevel gear, a rotating rod is coaxially fixedly sleeved on the upper end of the second bevel gear, and the upper end of the rotating rod penetrates the top wall of the battery box and is fixedly sleeved with a rotating block.

[0010] In the above-mentioned fuel cell type portable VOCs gas chromatograph, two handles are fixedly connected to the upper end of the chromatograph body and the battery box.

[0011] In the above-mentioned fuel cell type portable VOCs gas chromatograph, pin shaft insertion holes are provided on the left end of the battery placement plate and the left side wall of the chromatograph body.

[0012] Compared with existing technologies, the advantages of this fuel cell portable VOCs gas chromatograph are:

[0013] 1. By setting the battery box and the chromatograph body separately, connecting them with U-shaped groove blocks and limit plugs, and electrically connecting them with power connection blocks and connection plugs, the battery box can be lifted to replace or move the battery box separately, and the chromatograph body can be connected to fuel cells with different power capacities to adapt to different working cycles and reduce unnecessary waste of resources.

[0014] 2. After the battery box is removed from the battery placement plate, the battery placement plate can be flipped 90 degrees, and the pin can be used to penetrate the two pin holes at the same time to fix the position of the battery placement plate. This method can effectively reduce the size of the device. The device with the battery box removed is smaller and lighter, which is convenient for moving and carrying. The battery box and the chromatograph body are transported separately, which can effectively avoid damage to the chromatograph body in the event of an accident with the fuel cell in the battery box, thereby avoiding unnecessary losses.

[0015] 3. When placing the chromatograph body, the battery placement plate can be rotated from a vertical state to a horizontal state to push the two moving rods to the right, and the connecting rope can be used to pull the vertical rod upward under the limit of the through hole, so that the center position of each rubber disk is pulled upward to form an arch, thereby forming a negative pressure to generate suction, which is firmly adsorbed to the placement plane and cannot be moved, thereby maintaining the stability of the chromatograph body for detection work. Rotating the battery placement plate from a horizontal state to a vertical state can make the positioning suction cup lose its adsorption force, and the chromatograph body can be easily moved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of a fuel cell-type portable VOCs gas chromatograph proposed by the present invention;

[0017] Figure 2 This is a structural perspective view of the front side of a fuel cell type portable VOCs gas chromatograph proposed by the present invention;

[0018] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0019] Figure 4 for Figure 2 The enlarged structural diagram at B in the middle;

[0020] Figure 5 A structural perspective view of the front side of a fuel cell-type portable VOCs gas chromatograph in another state provided by the present invention;

[0021] Figure 6 A partial structural stereogram of a connecting plug in a fuel cell-type portable VOCs gas chromatograph proposed by the present invention;

[0022] Figure 7This is a partial structural stereogram of a positioning suction cup in a fuel cell-type portable VOCs gas chromatograph proposed by the present invention.

[0023] In the figure: 1 bottom plate, 2 battery placement plate, 3 chromatograph body, 4 battery box, 5 U-shaped slot block, 6 limit plug block, 7 power connection block, 8 connection plug block, 9 slide groove, 10 slide rod, 11 sleeve plate, 12 threaded rod, 13 end plate, 14 first bevel gear, 15 second bevel gear, 16 rotating rod, 17 rotating block, 18 fuel cell, 19 power connection line, 20 fixed ring, 21 rubber disk, 22 moving cavity, 23 moving rod, 24 vertical rod, 25 fixed sleeve block, 26 connecting rope, 27 moving plate, 28 spring, 29 handle, 30 pin shaft socket. DETAILED DESCRIPTION

[0024] The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0025] Example

[0026] Reference Figure 1-7 A fuel cell type portable VOCs gas chromatograph comprises a bottom plate 1, a battery placement plate 2 is hinged at the left end of the bottom plate 1, and the battery placement plate 2 is rotatable. A chromatograph body 3 is fixedly connected to the upper end of the bottom plate 1, a battery box 4 is placed on the upper end of the battery placement plate 2, two U-shaped groove blocks 5 symmetrically arranged front and back are fixedly connected to the upper and lower positions of the left end of the chromatograph body 3, and connecting blocks 8 are vertically inserted in the two U-shaped groove blocks 5 located at the rear side and the two U-shaped groove blocks 5 located at the front side. The two connecting blocks 8 are fixedly connected to the right positions of the front and rear ends of the battery box 4. The battery box 4 is connected to the chromatograph body 3 through the connecting blocks 8 and the U-shaped groove blocks 5, and the battery box 4 can be taken out by simply lifting it up.

[0027] A power connection block 7 is fixedly embedded on the left end of the chromatograph body 3. A power connection groove is provided at one end of the power connection block 7 close to the battery box 4. A connection plug 8 is penetrated at the right end of the battery box 4 and at the corresponding position of the power connection block 7. The right end of the connection plug 8 is inserted in the power connection groove and electrically connected with the power connection block 7. A fuel cell 18 is provided in the battery box 4. The power output end of the fuel cell 18 and the end of the connection plug 8 located in the battery box 4 are commonly connected with a power connection line 19. The fuel cell 18 supplies power to the chromatograph body 3 from the outside through the connection plug 8 and the power connection block 7. The front and rear ends of the connection plug 8 located in the battery box 4 are fixedly connected with a slide bar 10. Slide grooves 9 are horizontally opened on the front and rear inner walls of the battery box 4 and at the same height as the slide bar 10. The ends of the two slide bars 10 away from the connection plug 8 are respectively slidably connected in the corresponding slide grooves 9. The connection plug 8 can move laterally under the limiting effect of the slide bar 10 and the slide groove 9, so that the connection with the power connection block 7 can be disconnected and collected in the battery box 4.

[0028] A driving mechanism is provided in the battery box 4, and the driving mechanism includes a sleeve plate 11 fixedly connected to the upper end of the connecting plug block 8, a threaded rod 12 is horizontally penetrated and threadedly connected to the sleeve plate 11, and the right end of the threaded rod 12 is rotatably connected to the right inner wall of the battery box 4, and two end plates 13 arranged at intervals on the left and right are fixedly connected to the inner top wall of the battery box 4, and the left end of the threaded rod 12 penetrates the end plate 13 located on the right side and is rotatably connected to the end plate 13 located on the left side. A first bevel gear 14 is fixedly sleeved on the threaded rod 12 and between the two end plates 13, and a second bevel gear 15 is vertically meshed with the upper end of the first bevel gear 14, and a rotating rod 16 is coaxially fixedly sleeved on the upper end of the second bevel gear 15, and the upper end of the rotating rod 16 penetrates the inner top wall of the battery box 4 and is fixedly sleeved on the right inner wall of the battery box 4. A rotating block 17 is fixedly sleeved. When it is necessary to release the connection between the power connection block 7 and the connecting plug block 8 or insert the connecting plug block 8 into the power connection slot, it is only necessary to rotate the rotating rod 16 through the rotating block 17. The threaded rod 12 is driven to rotate through the meshing transmission of the first bevel gear 14 and the second bevel gear 15. While the driving sleeve 11 moves, the connecting plug block 8 is also driven to move horizontally, thereby facilitating the power connection and disconnection of the chromatograph body 3. After disconnecting the power connection block 7, the battery box 4 can be lifted and the battery box 4 can be replaced or moved separately. It is also convenient for the chromatograph body 3 to connect fuel cells 18 with different power sizes, thereby adapting to different working cycles and reducing unnecessary waste of resources.

[0029] The upper ends of the chromatograph body 3 and the battery box 4 are fixedly connected with two handles 29, which are convenient for moving and carrying the chromatograph body 3 and the battery box 4. The left end of the battery placement plate 2 and the left side wall of the chromatograph body 3 are provided with pin shaft insertion holes 30. When the battery box 4 is removed from the battery placement plate 2, the battery placement plate 2 can be turned over 90 degrees, such as Figure 5 As shown, a pin is used to penetrate two pin holes 30 at the same time to fix the position of the battery placement plate 2. This method can effectively reduce the size of the device. The device with the battery box 4 removed is smaller in size and lighter in weight, which is convenient for moving and carrying. The battery box 4 is transported separately from the chromatograph body 3, which can effectively prevent the fuel cell 18 in the battery box 4 from damaging the chromatograph body 3 in the event of an accident, thereby avoiding unnecessary losses.

[0030] Four rectangular positioning suction cups are provided at the lower end of the bottom plate 1, and the positioning suction cups play a supporting and positioning role. The positioning suction cups include a fixing ring 20 fixedly connected to the lower end of the bottom plate 1, and a rubber disc 21 is coaxially fixedly connected to the lower end of the fixing ring 20. A movable cavity 22 is provided in the bottom plate 1 and at the corresponding position of each positioning suction cup. A movable rod 23 is inserted and inserted between each two movable cavities 22 corresponding to the left and right positions, and the left ends of the two movable rods 23 are both arranged to penetrate the left inner wall of the movable cavity 22 on the left side, and the right ends of the two movable rods 23 are fixedly connected to a movable plate 27, and the movable plate 27 is connected to the movable cavity 22 on the right side. The inner wall is slidably connected, and a spring 28 is fixedly connected between the movable plate 27 and the corresponding inner wall on the right side of the movable cavity 22. A vertical rod 24 is fixedly connected to the center position of the upper end of each rubber disk 21. Sliding holes are opened on the inner bottom wall of each movable cavity 22 and at the corresponding position of the vertical rod 24. The upper end of the vertical rod 24 is inserted into the through hole. A fixed sleeve block 25 is fixedly sleeved on the two movable rods 23 and in each movable cavity 22. A connecting rope 26 is fixedly connected between the lower end of each fixed sleeve block 25 and the upper end of the corresponding vertical rod 24.

[0031] When no external force is applied, the spring 28 is in its original length. At this time, the left ends of the two moving rods 23 extend out of the moving cavity 22. At this time, each fixed sleeve 25 and the corresponding vertical rod 24 are located on the same vertical line. The rubber disk 21 is in a horizontal state and has no adsorption force. When the chromatograph body 3 is placed on a plane, the vertical battery placement plate 2 is rotated to a horizontal state. The end of the battery placement plate 2 close to the bottom plate 1 can push the two moving rods 23 to the right into the moving cavity 22, thereby compressing the spring 28. The fixed sleeves 25 also move to the right. The vertical rod 24 is pulled upward by the connecting rope 26 under the limit of the through hole, so that the center position of each rubber disk 21 is pulled upward to form an arch, thereby forming a negative pressure to generate suction, which is firmly adsorbed to the placement plane and cannot move, thereby maintaining the stability of the chromatograph body 3 for detection. When the position needs to be changed, the battery box 4 is removed and the battery placement plate 2 is rotated to the vertical state again, so that the two moving rods 23 can be reset under the elastic force of the spring 28, and each rubber disk 21 can be restored to the horizontal state again, losing the adsorption force, and the chromatograph body 3 can be easily moved.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A fuel cell type portable VOCs gas chromatograph, comprising a bottom plate (1), characterized in that: The left end of the bottom plate (1) is hingedly connected to a battery placement plate (2), the upper end of the bottom plate (1) is fixedly connected to a chromatograph body (3), the upper end of the battery placement plate (2) is placed with a battery box (4), the upper and lower positions of the left end of the chromatograph body (3) are fixedly connected to two U-shaped groove blocks (5) arranged symmetrically in front and behind, the two U-shaped groove blocks (5) located at the rear side and the two U-shaped groove blocks (5) located at the front side are vertically inserted with connection plugs (8), the two connection plugs (8) are fixedly connected to the right positions of the front and rear ends of the battery box (4), and the chromatograph body A power connection block (7) is fixedly embedded at the left end of the body (3); an end of the power connection block (7) close to the battery box (4) is provided with a power connection groove; a connection plug block (8) is passed through the right end of the battery box (4) and at a corresponding position of the power connection block (7); the right end of the connection plug block (8) is inserted into the power connection groove and is electrically connected to the power connection block (7); a fuel cell (18) is provided in the battery box (4); a power output end of the fuel cell (18) and an end of the connection plug block (8) located in the battery box (4) are connected to a power connection line (19); The bottom end of the bottom plate (1) is provided with four rectangularly distributed positioning suction cups, the positioning suction cups comprising a fixing ring (20) fixedly connected to the bottom end of the bottom plate (1), the fixing ring (20) being coaxially fixedly connected to a rubber disk (21), a movable cavity (22) being provided in the bottom plate (1) and at corresponding positions of each positioning suction cup, a movable rod (23) being inserted and slidably inserted between each two movable cavities (22) corresponding to left and right positions, the left ends of the two movable rods (23) being arranged to penetrate the left inner wall of the movable cavity (22) on the left side, the right ends of the two movable rods (23) being fixedly connected to a movable plate (27), the movable plate (27) and the movable plate (27) being arranged to move with the movable plate (27). The inner wall of the movable cavity (22) located on the right side is slidably connected, a spring (28) is fixedly connected between the movable plate (27) and the corresponding inner wall of the right side of the movable cavity (22), a vertical rod (24) is fixedly connected at the center position of the upper end of each rubber disk (21), a sliding hole is opened on the inner bottom wall of each movable cavity (22) and at the corresponding position of the vertical rod (24), the upper end of the vertical rod (24) is inserted into the through hole, a fixed sleeve block (25) is fixedly sleeved on the two movable rods (23) and in each movable cavity (22), and a connecting rope (26) is fixedly connected between the lower end of each fixed sleeve block (25) and the upper end of the corresponding vertical rod (24); The front and rear ends of the connecting plug (8) located in the battery box (4) are fixedly connected to slide bars (10), and the front and rear inner walls of the battery box (4) are horizontally provided with slide grooves (9) at the same height as the slide bars (10). The ends of the two slide bars (10) away from the connecting plug (8) are respectively slidably connected in the corresponding slide grooves (9). A driving mechanism is provided in the battery box (4), and the driving mechanism includes a sleeve plate (11) fixedly connected to the upper end of the connecting plug (8), and a threaded rod (12) is horizontally penetrated and threadedly connected to the sleeve plate (11), and the right end of the threaded rod (12) is rotatable with the right inner wall of the battery box (4). The battery box (4) is connected to a battery box having two end plates (13) fixedly connected to the inner top wall thereof and spaced apart from each other. The left end of the threaded rod (12) passes through the end plate (13) located on the right side and is rotatably connected to the end plate (13) located on the left side. A first bevel gear (14) is fixedly sleeved on the threaded rod (12) and between the two end plates (13). A second bevel gear (15) is vertically meshed at the upper end of the first bevel gear (14). A rotating rod (16) is coaxially fixedly sleeved at the upper end of the second bevel gear (15). The upper end of the rotating rod (16) passes through the inner top wall of the battery box (4) and is fixedly sleeved with a rotating block (17).

2. A fuel cell portable VOCs gas chromatograph according to claim 1, characterized in that: Two handles (29) are fixedly connected to the upper ends of the chromatograph body (3) and the battery box (4).

3. A fuel cell portable VOCs gas chromatograph according to claim 1, characterized in that: A pin shaft insertion hole (30) is provided on the left end of the battery placement plate (2) and the left side wall of the chromatograph body (3).

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