CN114252542A - Universal gas chromatography sample injector - Google Patents
Universal gas chromatography sample injector Download PDFInfo
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- CN114252542A CN114252542A CN202111408074.5A CN202111408074A CN114252542A CN 114252542 A CN114252542 A CN 114252542A CN 202111408074 A CN202111408074 A CN 202111408074A CN 114252542 A CN114252542 A CN 114252542A
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- 238000004817 gas chromatography Methods 0.000 title claims abstract description 17
- 230000007246 mechanism Effects 0.000 claims abstract description 73
- 238000005070 sampling Methods 0.000 claims abstract description 44
- 230000005540 biological transmission Effects 0.000 claims description 60
- 238000009434 installation Methods 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/16—Injection
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- Life Sciences & Earth Sciences (AREA)
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- Analytical Chemistry (AREA)
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- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a universal gas chromatography sample injector, which comprises two support plates, wherein the opposite sides of the two support plates are fixedly connected with transverse plates, the bottoms of the two support plates are symmetrically and threadedly connected with screws, one ends of the screws are rotatably connected with clamping plates, one ends of the screws, which are far away from the clamping plates, are fixedly connected with turntables, and one sides of the turntables, which are far away from the screws, are rotatably connected with turnhandles, the universal gas chromatography sample injector has the beneficial effects that: the straight line module through the drive mechanism of two equidirectional and vertical faces cooperatees and is convenient for drive the sample needle and remove on the axis of difference, cooperation through screw rod and splint can be fixed equipment, be convenient for cooperate the use with the instrument of various model sizes, spring through in the sampling mechanism, depression bar and clamping ring can compress tightly fixedly with the appearance bottle when taking a sample, thereby the better taking a sample, protect the syringe needle, prevent the skew, reduce sampling error, be convenient for better drive appearance bottle through tray mechanism and rotate, thereby take a sample to the sample of difference.
Description
Technical Field
The invention relates to the technical field of sample injectors, in particular to a universal gas chromatography sample injector.
Background
At present, many domestic gas chromatographs are not provided with corresponding automatic sample injectors, so that a trace sample injection needle is needed to be used for manual sample injection in the verification process. Due to different proficiency of the calibrating personnel, the deviation of human errors in the calibrating and calibrating processes of the instrument is large, the real reliability of the calibrating and calibrating results is distorted, and the authority of legal metering is deviated.
Disclosure of Invention
The present invention is directed to a universal gas chromatograph sample injector to solve the problems of the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the universal gas chromatography sample injector comprises two support plates, wherein the opposite sides of the two support plates are fixedly connected with transverse plates, the bottoms of the two support plates are symmetrically in threaded connection with screws, one end of the screw rod is rotationally connected with a clamping plate, one end of the screw rod, which is far away from the clamping plate, is fixedly connected with a turntable, a rotating handle is rotatably connected on one side of the rotating disc far away from the screw rod, the tops of the two support plates are fixedly connected with mounting plates, the top of one mounting plate is provided with a first transmission mechanism, the top of the other mounting plate is provided with an auxiliary transmission mechanism, the top parts of the first transmission mechanism and the auxiliary transmission mechanism are provided with a second transmission mechanism, the middle part of the second transmission mechanism is provided with a linear module, one side of the linear module is provided with a sampling mechanism, and the top of one of the transverse plates is provided with a tray mechanism, and one side of one of the support plates, which is far away from the tray mechanism, is fixedly connected with a control panel.
Preferably, first drive mechanism includes first slide rail, first curb plate, first lead screw, first transmission motor, first slider, one of them the first slide rail of top fixedly connected with of mounting panel, the equal first curb plate of fixedly connected with in both ends of first slide rail, two rotate between the first curb plate and be connected with first lead screw, one of them first transmission motor of one side fixedly connected with that first lead screw is kept away from to first curb plate, first transmission motor's output shaft extend to the opposite side of first curb plate and with first lead screw fixed connection, the outside threaded connection of first lead screw has first slider, the bottom of first slider and the top sliding connection of first slide rail.
Preferably, the auxiliary transmission mechanism comprises a second slide rail, a second side plate, a slide bar and a second slide block, wherein one of the second slide rail and the second side plate is fixedly connected to the top of the mounting plate, the second side plate is fixedly connected to both ends of the second slide rail, the slide bar is fixedly connected between the second side plates, the second slide block is slidably connected to the outer side of the slide bar, and the bottom of the second slide block is slidably connected to the top of the second slide rail.
Preferably, the second transmission mechanism comprises a third slide rail, a second lead screw, a second transmission motor and a third slide block, the top of the first slide block is fixedly connected with the third slide rail, the bottom of the third slide rail is fixedly connected with the top of the second slide block, one end of the first slide block is far away from the bottom of the third slide rail, the middle of the third slide rail is rotatably connected with the second lead screw, the second transmission motor is fixedly connected with one side of the third slide rail, an output shaft of the second transmission motor extends to the inner side of the third slide rail and is fixedly connected with one end of the second lead screw, the third slide block is in threaded connection with the outer side of the second lead screw, one side of the third slide block is connected with the third slide rail in a sliding manner, and one side of the linear module is fixedly connected with the third slide block.
Preferably, the sampling mechanism comprises a fixed plate, a mounting box, a top plate, an electric telescopic rod, a bottom plate, a sampling needle, a pressure rod, a first limit block, a second limit block, a spring and a pressure ring, wherein the fixed plate is fixedly connected to one side of a sliding part of the linear module, the mounting box is fixedly connected to one side of the fixed plate away from the linear module, the top plate is fixedly connected to the upper side of the inner wall of the mounting box, the electric telescopic rod is fixedly connected to the top of the top plate, the bottom plate is fixedly connected to the lower side of the inner wall of the mounting box, the sampling needle is fixedly connected to the middle of the bottom plate, a piston rod of the electric telescopic rod extends to the bottom of the top plate and is fixedly connected to a piston cap of the sampling needle, the pressure rod of the mounting box is symmetrically and slidably connected to the bottom of an L-shaped structure, the top of the pressure rod extends to the upper side of the bottom plate and is fixedly connected to the first limit block, the second limit block is fixedly connected to the outer side of the pressure rod and is positioned below the bottom plate, the outside of depression bar and the inside cover that is located the mounting box are equipped with the spring, the bottom of sampling needle is equipped with the clamping ring, the both sides of clamping ring respectively with the bottom fixed connection of two depression bars.
Preferably, the tray mechanism comprises a sample box, a rotating disc, sample bottles, a base, a driven pulley, a motor fixing box, stepping motors, a driving pulley and a transmission belt, wherein the top of one of the transverse plates is fixedly connected with the sample box, the inside of the sample box is rotatably connected with the rotating disc, the sample bottles are inserted into the top of the rotating disc at equal intervals, the bottom of the rotating disc is fixedly connected with the base, the bottom of the base is rotatably connected with the bottom of the inner wall of the sample box, the middle part of the base is fixedly connected with the driven pulley, the bottom of one side of the sample box is fixedly connected with the motor fixing box, the top of the motor fixing box is fixedly connected with the stepping motors, the output shafts of the stepping motors extend into the inside of the motor fixing box and are fixedly connected with the driving pulley, and one sides of the sample box and the motor fixing box, which are contacted, are communicated, the outer side cover of driven pulley and drive pulley is equipped with driving belt, driven pulley passes through driving belt and is connected with the drive pulley transmission.
Preferably, one of the control panels is provided with a universal interface.
Preferably, the transverse plate and the support plate form an included angle of ninety degrees.
Preferably, the compression ring and the sampling needle are located in the same vertical plane, and a glass window is formed in the outer side of the mounting box.
Preferably, the first transmission motor, the second transmission motor, the linear module, the electric telescopic rod and the stepping motor are all electrically connected with the control panel.
Compared with the prior art, the invention has the beneficial effects that: the straight line module through the drive mechanism of two equidirectional and vertical faces cooperatees and is convenient for drive the sample needle and remove on the axis of difference, cooperation through screw rod and splint can be fixed equipment, be convenient for cooperate the use with the instrument of various model sizes, spring through in the sampling mechanism, depression bar and clamping ring can compress tightly fixedly with the appearance bottle when taking a sample, thereby the better taking a sample, protect the syringe needle, prevent the skew, reduce sampling error, be convenient for better drive appearance bottle through tray mechanism and rotate, thereby take a sample to the sample of difference.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a schematic view of the internal structure of the sampling mechanism of the present invention;
fig. 4 is a schematic diagram of the internal structure of the tray mechanism of the present invention.
In the figure: 1. a support plate; 2. a transverse plate; 3. a screw; 4. a splint; 5. a turntable; 6. turning a handle; 7. mounting a plate; 8. a first transmission mechanism; 81. a first slide rail; 82. a first side plate; 83. a first lead screw; 84. a first drive motor; 85. a first slider; 9. an auxiliary transmission mechanism; 91. a second slide rail; 92. a second side plate; 93. a slide bar; 94. a second slider; 10. a second transmission mechanism; 101. a third slide rail; 102. a second lead screw; 103. a second drive motor; 104. a third slider; 11. a linear module; 12. a sampling mechanism; 121. a fixing plate; 122. mounting a box; 123. a top plate; 124. an electric telescopic rod; 125. a base plate; 126. a sampling needle; 127. a pressure lever; 128. a first stopper; 129. a second limiting block; 1210. a spring; 1211. pressing a ring; 13. a tray mechanism; 131. a sample cartridge; 132. rotating the disc; 133. a sample bottle; 134. a base; 135. a driven pulley; 136. a motor fixing box; 137. a stepping motor; 138. a drive pulley; 139. a drive belt; 14. a control panel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: the universal gas chromatography sample injector comprises two support plates 1, wherein the opposite sides of the two support plates 1 are fixedly connected with transverse plates 2, the bottoms of the two support plates 1 are symmetrically and threadedly connected with screw rods 3, one ends of the screw rods 3 are rotatably connected with clamping plates 4, one ends of the screw rods 3, which are far away from the clamping plates 4, are fixedly connected with rotary tables 5, one sides of the rotary tables 5, which are far away from the screw rods 3, are rotatably connected with rotating handles 6, the tops of the two support plates 1 are fixedly connected with mounting plates 7, the top of one of the mounting plates 7 is provided with a first transmission mechanism 8, the top of the other mounting plate 7 is provided with an auxiliary transmission mechanism 9, the tops of the first transmission mechanism 8 and the auxiliary transmission mechanism 9 are provided with second transmission mechanisms 10, the middle part of the second transmission mechanism 10 is provided with a linear module 11, one side of the linear module 11 is provided with a sampling mechanism 12, and the top of one of the transverse plates 2 is provided with a tray mechanism 13, one side of one of the support plates 1, which is far away from the tray mechanism 13, is fixedly connected with a control panel 14, and the linear module 11 is convenient for driving the sampling mechanism 12 to move on the Z axis.
Understandably, put outside gas chromatograph top to equipment, make diaphragm 2 and gas chromatograph top laminating, then rotate the carousel 5 of both sides, make splint 4 move to the inboard through screw rod 3, and then press from both sides tight outside gas chromatograph to fix equipment, be convenient for cooperate the use with the instrument of various model sizes.
Further, the first transmission mechanism 8 includes a first slide rail 81, a first side plate 82, a first lead screw 83, a first transmission motor 84, and a first sliding block 85, one of which is the first slide rail 81 fixedly connected to the top of the mounting plate 7, the first side plate 82 fixedly connected to both ends of the first slide rail 81, two of which are connected to the first side plate 83 between the first side plate 82, one of which is the first transmission motor 84 fixedly connected to one side of the first side plate 82 away from the first lead screw 83, an output shaft of the first transmission motor 84 extends to the other side of the first side plate 82 and is fixedly connected to the first lead screw 83, the first sliding block 85 is connected to the outer side of the first lead screw 83 through a thread, and the bottom of the first sliding block 85 is connected to the top of the first slide rail 81 in a sliding manner.
Further, the auxiliary transmission mechanism 9 includes a second slide rail 91, a second side plate 92, a slide bar 93, a second slide block 94, one of them the top fixedly connected with second slide rail 91 of the mounting plate 7, the both ends of the second slide rail 91 are fixedly connected with second side plate 92, two the slide bar 93 is fixedly connected between the second side plates 92, the outside sliding connection of the slide bar 93 has a second slide block 94, the bottom of the second slide block 94 is connected with the top sliding of the second slide rail 91, and the sampling mechanism 12 is better driven to move on the X axis by the cooperation of the first transmission mechanism 8 and the auxiliary transmission mechanism 9.
Further, the second transmission mechanism 10 includes a third slide rail 101, a second lead screw 102, a second transmission motor 103, and a third slide block 104, the top of the first sliding block 85 is fixedly connected with a third sliding rail 101, one end of the bottom of the third sliding rail 101, which is far away from the first sliding block 85, is fixedly connected with the top of the second sliding block 94, a second screw rod 102 is rotatably connected to the middle of the third slide rail 101, a second transmission motor 103 is fixedly connected to one side of the third slide rail 101, an output shaft of the second transmission motor 103 extends to the inner side of the third slide rail 101 and is fixedly connected with one end of the second lead screw 102, a third slide block 104 is connected with the outer side of the second screw rod 102 through a thread, one side of the third slide block 104 is connected with a third slide rail 101 in a sliding manner, one side of the linear module 11 is fixedly connected with the third slide block 104, the second drive mechanism 10 facilitates better movement of the sampling mechanism 12 in the Y-axis.
Further, the sampling mechanism 12 includes a fixing plate 121, a mounting box 122, a top plate 123, an electric telescopic rod 124, a bottom plate 125, a sampling needle 126, a pressure rod 127, a first limiting block 128, a second limiting block 129, a spring 1210, and a pressure ring 1211, wherein the fixing plate 121 is fixedly connected to one side of the sliding member of the linear module 11, the mounting box 122 is fixedly connected to one side of the fixing plate 121 away from the linear module 11, the top plate 123 is fixedly connected to the upper portion of the inner wall of the mounting box 122, the electric telescopic rod 124 is fixedly connected to the top portion of the top plate 123, the bottom plate 125 is fixedly connected to the lower portion of the inner wall of the mounting box 122, the sampling needle 126 is fixedly connected to the middle portion of the bottom plate 125, a piston rod of the electric telescopic rod 124 extends to the bottom portion of the top plate 123 and is fixedly connected to a piston cap of the sampling needle 126, the pressure rods 127 of an L-shaped structure are symmetrically and slidably connected to the bottom portion of the mounting box 122, the top of the pressing rod 127 extends to the upper part of the bottom plate 125 and is fixedly connected with a first limiting block 128, the outer side of the pressing rod 127 is fixedly connected with a second limiting block 129 positioned below the bottom plate 125, a spring 1210 is sleeved on the outer side of the pressing rod 127 and positioned inside the mounting box 122, a pressing ring 1211 is arranged at the bottom of the sampling needle 126, and two sides of the pressing ring 1211 are fixedly connected with the bottoms of the two pressing rods 127 respectively.
It can be understood that when the sampling mechanism 12 moves to a proper position, the mounting box 122 is lowered through the linear module 11, the pressing ring 1211 presses the top of the sample bottle 133 to press the sample bottle, the mounting box 122 is further moved downward, the pressing ring 1211 and the pressing rod 127 slide upward, the needle of the sampling needle 126 is inserted into the sample bottle 133, the electric telescopic rod 124 can pull or push the piston cap of the sampling needle 126 to complete air suction or air discharge, and after the mounting box 122 moves upward, the spring 1210 pushes the second stopper 129 to restore the position of the pressing rod 127, and the pressing ring 1211 can push the sample bottle 133 out.
Further, the tray mechanism 13 includes a sample box 131, a rotating disc 132, a sample bottle 133, a base 134, a driven pulley 135, a motor fixing box 136, a stepping motor 137, a driving pulley 138, and a driving belt 139, wherein the top of the horizontal plate 2 is fixedly connected with the sample box 131, the inside of the sample box 131 is rotatably connected with the rotating disc 132, the top of the rotating disc 132 is equidistantly inserted with the sample bottle 133, the bottom of the rotating disc 132 is fixedly connected with the base 134, the bottom of the base 134 is rotatably connected with the bottom of the inner wall of the sample box 131, the middle of the base 134 is fixedly connected with the driven pulley 135, the bottom of one side of the sample box 131 is fixedly connected with the motor fixing box 136, the top of the motor fixing box 136 is fixedly connected with the stepping motor 137, an output shaft of the stepping motor 137 extends to the inside of the motor fixing box 136 and is fixedly connected with the driving pulley 138, the sample box 131 is communicated with one side of the motor fixing box 136, a driving belt 139 is sleeved on the outer sides of the driven pulley 135 and the driving pulley 138, and the driven pulley 135 is in driving connection with the driving pulley 138 through the driving belt 139.
It will be appreciated that when the stepper motor 137 rotates the drive pulley 138, the drive belt 139 rotates the driven pulley 135, which in turn rotates the rotating disk 132 and the vials 133.
Further, one of the control panels 14 is provided with a universal interface, which can be electrically connected with external gas chromatographs of various models.
Furthermore, the transverse plate 2 and the support plate 1 form an included angle of ninety degrees.
Furthermore, the pressure ring 1211 and the sampling needle 126 are located in the same vertical plane, and a glass window is formed in the outer side of the installation box 122, so that the inside of the installation box 122 can be better observed.
Further, the first transmission motor 84, the second transmission motor 103, the linear module 11, the electric telescopic rod 124 and the stepping motor 137 are electrically connected with the control panel 14, so that the equipment can be better controlled.
Specifically, when the present invention is used, firstly, the device is placed on the top of an external gas chromatograph, the transverse plate 2 is attached to the top of the gas chromatograph, then the rotary tables 5 on both sides are rotated, the clamping plate 4 is moved inwards through the screw 3 to clamp the external gas chromatograph, then the device is powered on and is electrically connected with the external gas chromatograph through a wire, then the first transmission mechanism 8 and the auxiliary transmission mechanism 9 are matched to better drive the sampling mechanism 12 to move on the X axis, the second transmission mechanism 10 is used to better drive the sampling mechanism 12 to move on the Y axis, the linear module 11 is used to drive the sampling mechanism 12 to move on the Z axis, when the sampling mechanism 12 moves to a proper position, the mounting box 122 is lowered through the linear module 11, at this time, the pressing ring 1211 presses the top of the sample bottle 133 to press the sample bottle 133 tightly, and then the mounting box 122 is further moved downwards, the pressing ring 1211 and the pressing rod 127 slide upwards, at this time, the needle head of the sampling needle 126 is inserted into the sample bottle 133, then the electric telescopic rod 124 can pull or push the piston cap of the sampling needle 126 to complete air suction or air exhaust, after the mounting box 122 moves upwards, the spring 1210 pushes the second limiting block 129 to restore the position of the pressing rod 127, at this time, the pressing ring 1211 can push the sample bottle 133 out, and meanwhile, in the tray mechanism 13, when the stepping motor 137 drives the driving pulley 138 to rotate, the driving belt 139 drives the driven pulley 135 to rotate, so that the rotating disc 132 and the sample bottle 133 rotate.
The straight line module through the drive mechanism of two equidirectional and vertical faces cooperatees and is convenient for drive the sample needle and remove on the axis of difference, cooperation through screw rod and splint can be fixed equipment, be convenient for cooperate the use with the instrument of various model sizes, spring through in the sampling mechanism, depression bar and clamping ring can compress tightly fixedly with the appearance bottle when taking a sample, thereby the better taking a sample, protect the syringe needle, prevent the skew, reduce sampling error, be convenient for better drive appearance bottle through tray mechanism and rotate, thereby take a sample to the sample of difference.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The universal gas chromatography sample injector comprises two support plates (1) and is characterized in that a transverse plate (2) is fixedly connected to one opposite side of each of the two support plates (1), a screw rod (3) is connected to the bottom of each of the two support plates (1) in a symmetrical threaded manner, a clamping plate (4) is connected to one end of each of the screw rods (3) in a rotating manner, a turntable (5) is fixedly connected to one end, away from the clamping plate (4), of each of the screw rods (3), a rotating handle (6) is connected to one side, away from the screw rod (3), of each of the turntable (5), mounting plates (7) are fixedly connected to the tops of the two support plates (1), a first transmission mechanism (8) is arranged at the top of one of the mounting plates (7), an auxiliary transmission mechanism (9) is arranged at the top of the other mounting plate (7), and a second transmission mechanism (10) is arranged at the tops of the first transmission mechanism (8) and the auxiliary transmission mechanism (9), the middle part of the second transmission mechanism (10) is provided with a straight line module (11), one side of the straight line module (11) is provided with a sampling mechanism (12), the top of the transverse plate (2) is provided with a tray mechanism (13), and one side of the support plate (1) far away from the tray mechanism (13) is fixedly connected with a control panel (14).
2. The universal gas chromatography sample injector according to claim 1, wherein the first transmission mechanism (8) comprises a first slide rail (81), a first side plate (82), a first lead screw (83), a first transmission motor (84), and a first slider (85), the first slide rail (81) is fixedly connected to the top of one of the mounting plates (7), the first side plate (82) is fixedly connected to both ends of the first slide rail (81), the first lead screw (83) is rotatably connected between the two first side plates (82), the first transmission motor (84) is fixedly connected to one side of one of the first side plates (82) away from the first lead screw (83), the output shaft of the first transmission motor (84) extends to the other side of the first side plate (82) and is fixedly connected to the first lead screw (83), the first slider (85) is screwed to the outer side of the first lead screw (83), the bottom of the first sliding block (85) is connected with the top of the first sliding rail (81) in a sliding mode.
3. The universal gas chromatography sample injector according to claim 2, characterized in that the auxiliary transmission mechanism (9) comprises a second slide rail (91), a second side plate (92), a slide bar (93) and a second slide block (94), wherein the second slide rail (91) is fixedly connected to the top of one of the mounting plates (7), the second side plate (92) is fixedly connected to both ends of the second slide rail (91), the slide bar (93) is fixedly connected between the two second side plates (92), the second slide block (94) is slidably connected to the outer side of the slide bar (93), and the bottom of the second slide block (94) is slidably connected to the top of the second slide rail (91).
4. The universal gas chromatography sample injector according to claim 3, characterized in that the second transmission mechanism (10) comprises a third slide rail (101), a second lead screw (102), a second transmission motor (103) and a third slide block (104), the top of the first slide block (85) is fixedly connected with the third slide rail (101), one end of the bottom of the third slide rail (101) far away from the first slide block (85) is fixedly connected with the top of the second slide block (94), the middle of the third slide rail (101) is rotatably connected with the second lead screw (102), one side of the third slide rail (101) is fixedly connected with the second transmission motor (103), the output shaft of the second transmission motor (103) extends to the inner side of the third slide rail (101) and is fixedly connected with one end of the second lead screw (102), the outer side of the second lead screw (102) is connected with the third slide block (104) by screw thread, one side of the third sliding block (104) is connected with the third sliding rail (101) in a sliding mode, and one side of the linear module (11) is fixedly connected with the third sliding block (104).
5. The universal gas chromatography sample injector according to claim 4, wherein the sampling mechanism (12) comprises a fixing plate (121), a mounting box (122), a top plate (123), an electric telescopic rod (124), a bottom plate (125), a sampling needle (126), a pressure rod (127), a first stopper (128), a second stopper (129), a spring (1210), and a pressure ring (1211), the fixing plate (121) is fixedly connected to one side of the sliding part of the linear module (11), the mounting box (122) is fixedly connected to one side of the fixing plate (121) far away from the linear module (11), the top plate (123) is fixedly connected to the upper part of the inner wall of the mounting box (122), the electric telescopic rod (124) is fixedly connected to the top part of the top plate (123), the bottom plate (125) is fixedly connected to the lower part of the inner wall of the mounting box (122), and the sampling needle (126) is fixedly connected to the middle part of the bottom plate (125), the utility model discloses a sampling device, including bottom plate (125), installation box (125), depression bar (127), spring (1210), the bottom of sampling needle (126), the piston rod of electric telescopic handle (124) extend to the bottom of roof (123) and with the piston cap fixed connection of sampling needle (126), the bottom symmetry sliding connection of installation box (122) has depression bar (127) of L type structure, the top of depression bar (127) extends to the top and the first stopper of fixedly connected with (128) of bottom plate (125), the outside of depression bar (127) just is located the inside cover of installation box (122) and is equipped with spring (1210), the bottom of sampling needle (126) is equipped with clamping ring (1211), the both sides of clamping ring (1211) respectively with the bottom fixed connection of two depression bars (127).
6. The universal gas chromatography sample injector according to claim 1, wherein the tray mechanism (13) comprises sample boxes (131), a rotating disk (132), sample bottles (133), a base (134), a driven pulley (135), a motor fixing box (136), a stepping motor (137), a driving pulley (138) and a transmission belt (139), wherein the top of one of the horizontal plates (2) is fixedly connected with the sample boxes (131), the rotating disk (132) is rotatably connected inside the sample boxes (131), the sample bottles (133) are equidistantly inserted into the top of the rotating disk (132), the base (134) is fixedly connected to the bottom of the rotating disk (132), the bottom of the base (134) is rotatably connected with the bottom of the inner wall of the sample boxes (131), the driven pulley (135) is fixedly connected to the middle of the base (134), and the motor fixing box (136) is fixedly connected to the bottom of one side of the sample boxes (131), the top fixedly connected with step motor (137) of the fixed box of motor (136), the output shaft of step motor (137) extends to inside and fixedly connected with drive pulley (138) of the fixed box of motor (136), one side that sample box (131) and the fixed box of motor (136) contacted is linked together, the outside cover of driven pulley (135) and drive pulley (138) is equipped with drive belt (139), driven pulley (135) is connected with drive pulley (138) transmission through drive belt (139).
7. The universal gas chromatography sample injector as claimed in claim 1, characterized in that one of the control panels (14) is provided with a universal interface.
8. Universal gas chromatography sample injector according to claim 1, characterized in that the cross plate (2) and the support plate (1) are at an angle of ninety degrees.
9. The universal gas chromatography sample injector as claimed in claim 5, characterized in that the pressure ring (1211) and the sampling needle (126) are located in the same vertical plane, and the outer side of the mounting box (122) is provided with a glass window.
10. The universal gas chromatography sample injector as claimed in claim 2, wherein the first driving motor (84), the second driving motor (103), the linear module (11), the electric telescopic rod (124) and the stepping motor (137) are electrically connected to the control panel (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111408074.5A CN114252542A (en) | 2021-11-19 | 2021-11-19 | Universal gas chromatography sample injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111408074.5A CN114252542A (en) | 2021-11-19 | 2021-11-19 | Universal gas chromatography sample injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114252542A true CN114252542A (en) | 2022-03-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111408074.5A Pending CN114252542A (en) | 2021-11-19 | 2021-11-19 | Universal gas chromatography sample injector |
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