CN217878591U - Sweeping and trapping device for Vocs sampling in water - Google Patents
Sweeping and trapping device for Vocs sampling in water Download PDFInfo
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- CN217878591U CN217878591U CN202221734772.4U CN202221734772U CN217878591U CN 217878591 U CN217878591 U CN 217878591U CN 202221734772 U CN202221734772 U CN 202221734772U CN 217878591 U CN217878591 U CN 217878591U
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- bracket
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Abstract
The utility model discloses a what aquatic Vocs sample was used sweeps entrapment device, include: a support; the transfer device is arranged on the bracket and used for transferring the sample; the needle tube is connected to the bracket in a sliding manner and used for sweeping and extracting a sample; and the bottle body bracket is arranged on the bracket, is positioned at the lower end of the needle tube and is used for bearing the sample transferred by the transfer device. And one end of the elastic body is connected with the needle tube, the other end of the elastic body is connected with the support, when the transfer device drives the sample to be transferred into the bottle body support, the transfer device interferes with the needle tube to enable the needle tube to generate displacement and dislocate with the bottle body support, and when the interference force disappears, the elastic body drives the needle tube to reset. The utility model discloses a sweeping and trapping device, when sweeping and trapping, the action of reducible power source is retrencied, compact space, energy can be saved.
Description
Technical Field
The utility model relates to a technical field of appearance and analysis and test instrument are advanced in the letter sorting specifically is a entrapment device that sweeps that aquatic Vocs sample was used.
Background
Purging and trapping are sample pretreatment instruments used in the field of chemical analysis, and the purging and trapping method is theoretically a dynamic headspace technology, and is characterized in that volatile components in a sample are purged by using continuous flowing gas, and then a purged substance is adsorbed by using one trap and then enters analysis equipment for analysis and determination. Generally, a dynamic headspace technology is called as a purging and trapping sampling technology, a sample to be purged can be a solid sample or a liquid sample, inert gases such as high-purity helium are mostly adopted as purging gases, an adsorbent is filled in a trap, and a proper adsorbent can be selected according to the properties of a component to be analyzed. The existing purging and trapping device needs to integrate a plurality of power sources to complete actions such as grabbing, transferring, giving way and returning of samples, but for the precise instrument, too many power sources occupy space, waste energy and lead to complex controller algorithm, so that the actions are simplified and the power sources are reduced, which is one of the problems to be solved in the field.
Based on the above, the present application provides a purging and trapping device for sampling Vocs in water, so as to solve the problems in the prior art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a entrapment device that sweeps of aquatic Vocs sample usefulness to solve the problem that provides among the above-mentioned background art.
In order to solve the technical problem, the utility model provides a following technical scheme: a purging and trapping device for Vocs sampling in water comprises: a support; the transfer device is arranged on the bracket and used for transferring the sample; the needle tube is connected to the bracket in a sliding manner and used for purging a sample; and the bottle body bracket is arranged on the bracket, is positioned at the lower end of the needle tube and is used for bearing the sample transferred by the transfer device. And one end of the elastic body is connected with the needle tube, the other end of the elastic body is connected with the support, when the transfer device drives the sample to be transferred into the bottle body support, the transfer device interferes with the needle tube to enable the needle tube to generate displacement and dislocate with the bottle body support, and when the interference force disappears, the elastic body drives the needle tube to reset.
Preferably, the purging and trapping device for sampling Vocs in water further comprises: the first sliding rail is connected with the bracket through a connecting piece; the first sliding block is connected to the first sliding rail in a sliding manner; and the needle tube bracket is connected with the first sliding block, and the needle tube is fixed on the needle tube bracket.
Preferably, the elastic body is a spring, one end of the spring is connected to the needle tube support, and the other end of the spring is connected to the connecting piece.
Preferably, the sweeping and trapping device for sampling the Vocs in the water further comprises a guide frame, and the guide frame comprises: the upper transverse frame is positioned at the upper end of the needle tube bracket; the lower transverse frame is positioned at the lower end of the needle tube; the guide post is positioned on the side part of the needle tube bracket, penetrates through a tube groove formed in the needle tube bracket and is respectively connected with the upper cross frame and the lower cross frame; and the catheter is arranged on the lower transverse frame, penetrates through the lower transverse frame and corresponds to the needle tube.
Preferably, the sweeping and trapping device for Vocs sampling in water further comprises a sample disc, wherein the sample disc is located on the support and corresponds to the transfer device, and a plurality of column grooves are formed in the sample disc and used for containing sample bottles.
Preferably, the transfer device comprises: the mechanical arm is used for clamping a sample; the mechanical arm is connected to the Z-direction translation device in a sliding mode, and the Z-direction translation device is used for driving the mechanical arm to translate in the vertical direction; the X-direction translation device is connected with the Z-direction translation device in a sliding manner and is used for driving the mechanical arm to translate in the X direction of the horizontal plane; and the Y-direction translation device is connected with the X-direction translation device in a sliding manner and used for driving the mechanical arm to translate in the Y direction of the horizontal plane, and the X direction is vertical to the Y direction.
Compared with the prior art, the utility model discloses the beneficial effect who reaches is: when the transfer device drives a sample to be transferred into the bottle body support, the needle tube is positioned right above the bottle body support and meets the transfer device to generate interference or collision, the traditional method is that a power source is utilized to drive the needle tube to do avoiding action, after the sample bottle is placed in the bottle body support, the power source drives the needle tube to reset, so that the needle tube corresponds to the bottle body support again, and the needle puncturing and purging action is convenient to execute, wherein the power source is generally a motor, the action is complex, and an independent power source is needed; the utility model discloses increased the design of elastic component, avoided using the motor, utilized transfer device's power to make the needle tubing produce displacement and bottle support dislocation, when transfer device's interference disappears, the elastomer drives the needle tubing and resets, sweeps the action again, so reducible power supply retrencies the action, compact space, energy can be saved.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is a perspective view of a purging and trapping device for Vocs sampling in water according to an embodiment of the present invention;
FIG. 2 is a perspective view of the needle cannula, guide bracket, etc. in the embodiment of the present invention;
FIG. 3 is a perspective view of a sample tray in an embodiment of the present invention;
fig. 4 is a perspective view of a transfer device in an embodiment of the present invention;
in the figure: a bracket 1; a needle tube 2; a bottle body support 3; an elastic body 4; a first slide rail 5; a first slider 6; a needle tube bracket 7 and a tube groove 7-1; a connecting member 8; an upper cross frame 9; a lower cross frame 10; a guide post 11; a conduit 12; a sample tray 13, a column groove 13-1; a robot arm 14; the device comprises a Z-direction translation device 15, a second slide block 15-1, a second slide rail 15-2, a second screw rod 15-3 and a second motor 15-4; the X-direction translation device 16, the third sliding block 16-1, the third sliding rail 16-2, the third screw 16-3 and the third motor 16-4; a Y-direction translation device 17, a fourth slide block 17-1, a fourth slide rail 17-2, a fourth screw 17-3 and a fourth motor 17-4.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
Purging and trapping are sample pretreatment instruments used in the field of chemical analysis, and the purging and trapping method is theoretically a dynamic headspace technology, and is characterized in that volatile components in a sample are purged by using continuous flowing gas, and then a purged substance is adsorbed by using one trap and then enters analysis equipment for analysis and determination. Generally, a dynamic headspace technology is called as a purging and trapping sampling technology, a sample to be purged can be a solid sample or a liquid sample, inert gases such as high-purity helium are mostly adopted as purging gases, an adsorbent is filled in a trap, and a proper adsorbent can be selected according to the properties of a component to be analyzed. The existing purging and trapping device needs to integrate a plurality of power sources to complete actions such as grabbing, transferring, giving way and returning of samples, but for the precise instrument, too many power sources occupy space, waste energy and lead to complex controller algorithm, so that the actions are simplified and the power sources are reduced, which is one of the problems to be solved in the field.
Based on the above, the present application provides an embodiment, specifically to a purging and trapping device for sampling Vocs in water, so as to solve the problems in the prior art.
Specifically, as shown in fig. 1-2, the purging and trapping device comprises a bracket 1, wherein the bracket 1 is used as a support for collecting and supporting other parts; the sample bottle conveying device is characterized by further comprising a transfer device, wherein the transfer device is arranged on the support 1 and used for transferring samples, specifically, the samples are contained in the sample bottles, and the transfer device needs to perform actions of clamping the sample bottles, transferring the sample bottles, returning the sample bottles and the like; the device also comprises a needle tube 2, wherein the needle tube 2 is connected to the bracket 1 in a sliding manner, is communicated with the purging tube assembly and is used for purging the sample in the sample bottle to separate out volatile components in the sample so as to enter the next organic matter adsorption action; the automatic sample bottle cleaning device is characterized by further comprising a bottle body support 3, wherein the bottle body support 3 is installed on the support 1 and located at the lower end of the needle tube 2 and used for bearing sample bottles transferred by the transfer device, the bottle body support 3 is preferably of a column groove structure, the sample bottles are transferred into the bottle body support 3 after being grabbed, then the transfer device resets, the bottle body support 3 moves upwards, and the needle tube 2 is inserted into the sample bottles to perform purging action.
Further, when the transfer device drives the sample to be transferred to the bottle holder 3, because the needle tube 2 is located right above the bottle holder 3 and meets with the transfer device to generate interference or collision, the conventional method is to use a power source to drive the needle tube 2 to do avoiding action, after the sample bottle is placed in the bottle holder 3, the power source drives the needle tube 2 to reset, so that the needle tube 2 corresponds to the bottle holder 3 again, so as to perform purging action, the power source is generally a motor, the action is complex and needs a separate power source, based on this, as shown in fig. 2, the purging and trapping device further comprises an elastic body 4, one end of the elastic body 4 is connected with the needle tube 2, and the other end is connected with the holder 1, when the transfer device drives the sample bottle holder 3 to transfer, the transfer device generates interference to the needle tube 2, the needle tube 2 generates displacement and is dislocated with the bottle holder 3 by using the power of the transfer device, when the interference force of the transfer device disappears, the elastic body 4 drives the needle tube 2 to reset, and performs purging action again, so that the power source can be reduced, the action, compact space and energy can be saved.
Further, as shown in fig. 2, the connection mode of the needle tube 2 and the bracket 1 is specifically as follows: the purging and trapping device further comprises a first sliding rail 5, wherein the first sliding rail 5 is fixedly connected with the bracket 1 through a connecting piece 8, and the extending direction of the first sliding rail 5 is vertical to the extending direction of the needle tube 2; the first sliding block 6 is connected to the first sliding rail 5 in a sliding manner; the automatic bottle opener is characterized by further comprising a needle tube support 7, the needle tube support 7 is connected with the first sliding block 6 through screws, the needle tube 2 is fixedly connected onto the needle tube support 7, and when the needle tube 2 is interfered by the transfer device, the needle tube 2 moves horizontally along the extending direction of the first sliding rail 5, so that the needle tube 2 and the bottle body support 3 are staggered.
Further, as shown in fig. 2, the elastic body 4 is preferably a spring, one end of the spring is fixedly connected to the needle tube holder 7 by a bolt, the other end of the spring is fixedly connected to the connector 8 by a bolt, the needle tube 2 is positioned right above the bottle body holder 3 in a free state, and the needle tube 2 is misaligned with the bottle body holder 3 in a stretching state.
Further, since the needle tube 2 is relatively slender, when a sample bottle is pricked, the needle tube 2 is easy to generate plastic deformation, and meanwhile, the needle tube 2 is required to be used as a precision part and a protection structure is required, based on the protection structure, as shown in fig. 2, the purging and trapping device further comprises a guide frame, wherein the guide frame comprises an upper transverse frame 9, and the upper transverse frame 9 is a plate and is positioned at the upper end of the needle tube support 7; the needle tube is characterized by further comprising a lower transverse frame 10, wherein the lower transverse frame 10 is also a plate and is positioned at the lower end of the needle tube 2; the needle tube support is characterized by further comprising two guide posts 11, wherein the two guide posts 11 are respectively positioned on the side part of the needle tube support 7 and penetrate through tube grooves 7-1 formed in the needle tube support 7, each side of the needle tube support 7 is provided with two tube grooves 7-1, each guide post 11 sequentially penetrates through the two tube grooves 7-1, the guide posts 11 can only move in the vertical direction relative to the needle tube 2, and two ends of each guide post 11 are respectively connected with the upper cross frame 9 and the lower cross frame 10 through screws; the needle tube is characterized by further comprising a guide tube 12, wherein the guide tube 12 is arranged in the middle of the lower transverse frame 10, penetrates through the lower transverse frame 10, is clamped with the lower transverse frame 10 and corresponds to the needle tube 2; when the bottle body support 3 moves upwards to make the needle tube 2 penetrate into the sample bottle, the power of the bottle body support 3 drives the whole guide frame to move upwards to guide the needle tube 2, and meanwhile, the needle tube 2 penetrates through the guide tube 12 to penetrate into the sample bottle.
Further, as shown in fig. 1 and 3, the purging and trapping device further includes a sample tray 13, the sample tray 13 is located on the support 1 and located at the lower end of the transfer device, the sample tray 13 is provided with a plurality of column grooves 13-1, the plurality of column grooves 13-1 are horizontally and vertically arranged on the sample tray 13 and used for containing sample bottles, the transfer device can grab the sample bottles on the sample tray 13 and then transfer the sample tray 13, and after the purging and trapping actions are completed, the transfer device grabs and resets the sample bottles at the bottle body support 3 onto the sample tray 13.
Further, as shown in fig. 1 and 4, the transfer device specifically includes a mechanical arm 14, wherein the mechanical arm 14 is used for holding the sample bottle; the mechanical arm 14 is connected to the Z-direction translation device 15 in a sliding mode, and the Z-direction translation device 15 is used for driving the mechanical arm 14 to translate in the vertical direction; the Z-direction translation device 15 specifically comprises a second sliding block 15-1, a second sliding rail 15-2, a second screw 15-3 and a second motor 15-4, one end of the second sliding block 15-1 is connected with the mechanical arm 14, the other end of the second sliding block 15-1 is connected with the second sliding rail 15-2 in a sliding mode, the middle of the second sliding block is in threaded connection with the second screw 15-3, the second screw 15-3 is driven by the second motor 15-4 to rotate, the second screw 15-3 and the second sliding block 15-1 generate threaded rotation, and the mechanical arm 14 is driven by the second sliding block 15-1 to translate in the vertical direction under the limiting effect of the second sliding rail 15-2; the device also comprises an X-direction translation device 16, wherein the X-direction translation device 16 is connected with a Z-direction translation device 15 in a sliding manner and is used for driving the mechanical arm 14 to translate in the X direction of the horizontal plane; the X-direction translation device 16 specifically comprises a third sliding block 16-1, a third sliding rail 16-2, a third screw 16-3 and a third motor 16-4, one end of the third sliding block 16-1 is fixedly connected with the second sliding rail 15-2, the other end of the third sliding block is connected with the third sliding rail 16-2 in a sliding manner, the middle part of the third sliding block is in threaded connection with the third screw 16-3, the third screw 16-3 is driven by the third motor 16-4 to rotate, the third screw 16-3 and the third sliding block 16-1 generate spiral rotation movement, under the limiting action of the third sliding rail 16-2, the third sliding block 16-1 drives the Z-direction translation device 15 to translate, and further drives the mechanical arm 14 to translate in the X direction of the horizontal plane; the mechanical arm 14 is driven to translate in the Y direction of the horizontal plane, and the X direction is vertical to the Y direction; the Y-direction translation device 17 specifically includes a fourth slider 17-1, a fourth slide rail 17-2, a fourth screw 17-3, and a fourth motor 17-4, one end of the fourth slider 17-1 is fixedly connected to the third motor 16-4, the other end is slidably connected to the fourth slide rail 17-2, the middle portion is screwed to the fourth screw 17-3, the fourth screw 17-3 is driven by the fourth motor 17-4 to rotate, the fourth screw 17-3 and the fourth slider 17-1 generate a screw motion, under the restriction action of the fourth slide rail 17-2, the fourth slider 17-1 drives the X-direction translation device 16 and the Z-direction translation device 15 to translate, and further drives the mechanical arm 14 to translate in the Y direction of the horizontal plane, wherein in order to drive the X-direction translation device 16 to translate, one end of the third slide rail 16-2 is slidably connected to the support 1.
Further, the bottle body support 3 is driven to move upwards by the cooperation of the slide block, the slide rail, the screw rod and the motor.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A sweeping and trapping device for Vocs sampling in water is characterized by comprising:
a support (1);
and a transfer device mounted on the holder (1) for transferring a sample;
the needle tube (2) is connected to the bracket (1) in a sliding manner and used for purging a sample;
the bottle body support (3) is arranged on the support (1), is positioned at the lower end of the needle tube (2), and is used for receiving the sample transferred by the transfer device;
and the elastomer (4), one end of the elastomer (4) with the needle tubing (2) is connected, the other end with the support (1) is connected, when the transfer device drives the sample to shift to the bottle body support (3), the transfer device interferes with the needle tubing (2), so that the needle tubing (2) generates displacement and the bottle body support (3) is dislocated, and when the interference force disappears, the elastomer (4) drives the needle tubing (2) to reset.
2. A purge and trap apparatus for Vocs sampling in water as claimed in claim 1, further comprising:
the first sliding rail (5), the first sliding rail (5) is connected with the bracket (1);
the first sliding block (6) is connected to the first sliding rail (5) in a sliding mode;
and the needle tube support (7), the needle tube support (7) is connected with the first sliding block (6), and the needle tube (2) is fixed on the needle tube support (7).
3. A sweeping and trapping device for Vocs sampling in water according to claim 2, wherein said elastic body (4) is a spring, one end of said spring is connected to said needle tube holder (7), and the other end is connected to said connecting piece (8).
4. A sweeping and trapping device for Vocs sampling in water according to claim 2 or 3, further comprising a guide frame, said guide frame comprising:
the upper transverse frame (9), the upper transverse frame (9) is positioned at the upper end of the needle tube bracket (7);
the lower transverse frame (10) is positioned at the lower end of the needle tube (2);
the guide post (11) is positioned on the side part of the needle tube bracket (7), penetrates through a tube groove (7-1) formed in the needle tube bracket (7), and is respectively connected with the upper transverse frame (9) and the lower transverse frame (10);
and a catheter (12), wherein the catheter (12) is placed on the lower transverse frame (10), penetrates through the lower transverse frame (10) and is in positive correspondence with the needle tube (2).
5. The sweeping and trapping device for sampling Vocs in water according to any one of claims 1-3, further comprising a sample tray (13), wherein the sample tray (13) is located on the support (1) and corresponds to the transferring device, and a plurality of column grooves (13-1) for containing sample bottles are formed in the sample tray (13).
6. A sweeping and trapping device for Vocs sampling in water according to any one of claims 1-3, wherein said transfer device comprises:
a robotic arm (14), the robotic arm (14) for holding a sample;
the Z-direction translation device (15), the mechanical arm (14) is connected to the Z-direction translation device (15) in a sliding mode, and the Z-direction translation device (15) is used for driving the mechanical arm (14) to translate in the vertical direction;
the X-direction translation device (16) is connected with the Z-direction translation device (15) in a sliding mode and used for driving the mechanical arm (14) to translate in the X direction of the horizontal plane;
and the Y-direction translation device (17) is connected with the X-direction translation device (16) in a sliding manner and used for driving the mechanical arm (14) to translate in the Y direction of the horizontal plane, and the X direction is vertical to the Y direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221734772.4U CN217878591U (en) | 2022-07-05 | 2022-07-05 | Sweeping and trapping device for Vocs sampling in water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221734772.4U CN217878591U (en) | 2022-07-05 | 2022-07-05 | Sweeping and trapping device for Vocs sampling in water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217878591U true CN217878591U (en) | 2022-11-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221734772.4U Active CN217878591U (en) | 2022-07-05 | 2022-07-05 | Sweeping and trapping device for Vocs sampling in water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217878591U (en) |
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2022
- 2022-07-05 CN CN202221734772.4U patent/CN217878591U/en active Active
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