Argon bottle mounting structure of handheld laser-induced breakdown spectrometerTechnical field:
the invention relates to an argon bottle mounting structure of a handheld laser-induced breakdown spectrometer.
The background technology is as follows:
The hand-held laser-induced breakdown spectroscopy is typically equipped with an argon bottle for providing argon to the detection area to improve detection accuracy. The installation mode of the argon gas bottle is generally two, one is built-in, the spectrometer shell needs to be disassembled during installation and disassembly, the other is plug-in type, namely, a mounting hole is formed in the shell, then a connector for connecting the gas bottle is arranged in the shell, the connector is communicated with an air passage in the spectrometer, and the argon gas bottle is inserted into the shell from the mounting hole and is in threaded connection with the connector.
In the actual operation process, the two argon bottle mounting structures have a plurality of inconveniences, and the built-in argon bottle is obviously troublesome in mounting the argon bottle, so that the shell needs to be disassembled; for above-mentioned plug-in type, then there is different technical problem according to the position of joint, when the joint is close the mounting hole, has most argon gas bottle to expose, leads to the spectrum appearance volume grow, when the joint is kept away from the mounting hole, inserts the argon gas bottle after, and the process of screwing up is difficult to implement, even needs to dispose special instrument and screw up the argon gas bottle, consequently, present argon gas bottle mounting structure is very inconvenient in the use.
The invention comprises the following steps:
The technical problems to be solved by the invention are as follows: the utility model provides an argon gas bottle mounting structure of handheld laser-induced breakdown spectrometer, this mounting structure is convenient for the dismouting of argon gas bottle and can not increase the volume of spectrum appearance.
In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides an argon gas bottle mounting structure of handheld laser-induced breakdown spectrometer, including the spectrometer casing, this casing includes the grab handle and is located the quick-witted storehouse of grab handle top, be provided with a slide rail that extends along the spectrometer casing fore-and-aft direction in the quick-witted storehouse, sliding connection has a slider on the slide rail, this slider can follow slide rail length direction and slide, be connected with a mounting bracket on the slider, be connected with the joint that is used for connecting argon gas bottle and the inside gas circuit of casing on the mounting bracket, be provided with the screw hole on the joint, set up the mounting hole just to with the screw hole of joint on the casing that is located slide rail one end, the argon gas bottle is inserted in the quick-witted storehouse from the mounting hole threaded connection with the screw hole screw joint, it can drive the argon gas bottle and axially move in the mounting hole to remove the slider.
As a preferable scheme, a fixed door stopper is arranged on the inner wall of the other end of the shell opposite to the mounting hole, a movable door stopper matched with the fixed door stopper is fixedly connected to the mounting frame or the sliding block, and when the mounting frame slides along the sliding block in the direction away from the mounting hole, the movable door stopper approaches to the fixed door stopper and is finally connected with the fixed door stopper, so that the sliding block is positioned.
As a preferable scheme, the mounting frame comprises two symmetrically arranged connecting plates, the two connecting plates are respectively and fixedly connected to the sliding block, and the joint is fixedly connected between the two connecting plates.
As a preferred scheme, a sealing cap for sealing the connecting hole is connected to the mounting hole.
As a preferable scheme, the machine cabin is formed by involution of a left half shell and a right half shell, the fixed door stopper is positioned on a seam where the two half shells are involuted, and the fixed door stopper is fixedly connected with the two half shells respectively.
As a preferable scheme, the fixed door stopper and the movable door stopper are respectively two parts of the ball collision door stopper, and the fixed door stopper and the movable door stopper are mutually clamped in a mechanical clamping way.
The beneficial effects of the invention are as follows: the connector which is in butt joint with the argon gas bottle is arranged to be slidable, so that the connector can slide along the sliding rail, when the argon gas bottle needs to be dismounted or mounted, the argon gas bottle is pulled out from the mounting hole, a user can hold the argon gas bottle by hand, so that force application is facilitated, the argon gas bottle is dismounted from the connector, when the argon gas bottle needs to be mounted, the connector can be moved to the mounting hole first, then the argon gas bottle is well connected with the connector through threads, and then the argon gas bottle is pushed into a cabin. Therefore, after the structure is improved, the disassembly and the assembly of the argon bottle are convenient, and the volume of the spectrometer can not be increased.
Description of the drawings:
The invention is described in further detail below with reference to the attached drawing figures, wherein:
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a schematic view of a structure in which a movable door stopper and a fixed door stopper are separated;
Fig. 4 is a schematic structural view of a movable door stopper and a fixed door stopper connected state.
In fig. 1 to 4: 1. the device comprises a shell, 101, a grab handle, 102, a machine cabin, 1021, a half shell, 2, a sliding rail, 3, a sliding block, 4, a mounting rack, 401, a connecting plate, 5, an argon bottle, 6, a connector, 7, a mounting hole, 8, a fixed door stopper, 9, a movable door stopper, 10, a sealing cap, 11 and a joint.
The specific embodiment is as follows:
Specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 4, the argon gas bottle mounting structure of the handheld laser-induced breakdown spectrometer comprises a spectrometer shell 1, the shell 1 comprises a grab handle 101 and a machine bin 102 positioned above the grab handle 101, a sliding rail 2 extending along the front and rear directions of the spectrometer shell 1 is arranged in the machine bin 102, a sliding block 3 is connected to the sliding rail 2 in a sliding manner, the sliding block 3 can slide along the length direction of the sliding rail 2, a mounting frame 4 is connected to the sliding block 3, a joint 6 for connecting the argon gas bottle 5 with an internal gas circuit of the shell 1 is fixedly connected to the mounting frame 4, a threaded hole is formed in the joint 6, a mounting hole 7 opposite to the threaded hole of the joint 6 is formed in the shell 1 positioned at one end of the sliding rail 2, the argon gas bottle 5 is inserted into the machine bin 102 from the mounting hole 7 and is in threaded connection with the threaded hole of the joint 6, and the argon gas bottle 5 can be driven to axially move in the mounting hole 7.
The joint 6 in butt joint with the argon gas bottle 5 is arranged to be slidable, so that the joint 6 can slide along the sliding rail 2, the argon gas bottle 5 is pulled out from the mounting hole 7 when the argon gas bottle 5 needs to be dismounted or mounted, a user can hold the argon gas bottle 5 by hand, so that force is conveniently applied, the argon gas bottle 5 is dismounted from the joint 6, and in the same way, the joint 6 can be moved to the mounting hole 7 first when the argon gas bottle 5 needs to be mounted, then the argon gas bottle 5 is well connected with the joint 6 through threads, and then the argon gas bottle 5 is pushed into the machine bin 102. Therefore, the structure is improved, the disassembly and assembly of the argon bottle 5 are convenient, and the volume of the spectrometer is not increased.
As shown in fig. 1, 3 and 4, a fixed door stopper 8 is provided on the inner wall of the other end of the housing 1 opposite to the mounting hole 7, a movable door stopper 9 matched with the fixed door stopper 8 is fixedly connected to the mounting frame 4, and when the mounting frame 4 slides along the sliding block 3 in a direction away from the mounting hole 7, the movable door stopper 9 approaches the fixed door stopper 8 and is finally connected with the fixed door stopper 8, so that the sliding block 3 is positioned.
The movable door stopper 9 can also be fixedly connected to the sliding block 3.
After the argon bottle 5 is installed on the connector 6, the installation frame 4 and the sliding block 3 can be pushed into the shell 1 along the sliding rail 2 by pushing the argon bottle 5, so that the movable door stopper 9 approaches to the fixed door stopper 8 until the movable door stopper 9 and the fixed door stopper 8 are clamped with each other.
As shown in fig. 2, the mounting frame 4 includes two symmetrically arranged connection plates 401, the two connection plates 401 are respectively and fixedly connected to the sliding block 3, and the joint 6 is fixedly connected between the two connection plates 401.
The mounting hole 7 is connected with a sealing cap 10 for sealing the connecting hole 7, protecting the argon bottle 5, sealing the shell 1 and preventing dust from entering the shell 1.
The machine cabin 102 is formed by folding left and right half shells 1021, the fixed door stopper 8 is positioned on a folding joint 11 where the two half shells 1021 are folded, the fixed door stopper 8 is respectively and fixedly connected with the two half shells 1021, and the two half shells 1021 cannot be separated by respectively connecting the fixed door stopper 8 to the two half shells 1021, so that the inner structure is prevented from being damaged due to the fact that the shells are easily disassembled, and the service safety and the service life of the spectrometer are improved.
The fixed door stopper 8 and the movable door stopper 9 are two parts of the ball collision door stopper respectively, and the fixed door stopper 8 and the movable door stopper 9 are mutually clamped in a mechanical clamping mode.
The door stopper is classified into a mechanical locking type and a magnetic type, and in this embodiment, the mechanical locking type is preferably adopted, as shown in fig. 3 and 4, but the magnetic type may also be adopted.
The working process of the invention is as follows: when the argon bottle 5 is not installed, the fixed door stopper 8 and the movable door stopper 9 are in a separated state as far as possible, so long as the shell 1 is inclined to enable the sliding rail 2 to incline towards the installation hole 7, the sliding block 3 and the joint 6 can slide to the vicinity of the installation hole 7, then the argon bottle 5 is held by hand, the front end of the argon bottle 5 is inserted into the installation hole 7 and is in threaded connection with the threaded hole on the joint 6, at the moment, most of the argon bottle 5 is positioned outside the shell 1, therefore, the contact area between the hand and the argon bottle is large, an operator can easily screw the argon bottle 5 and the joint 6, after screwing the argon bottle 5, the operator pushes the bottom of the argon bottle 5, the argon bottle 5 is inserted into the shell 1 along the sliding rail 2 until the movable door stopper 9 is clamped with the fixed door stopper 8, then the sealing cap 10 can be connected to the installation hole 7, and the installation hole 10 is closed, and the argon bottle 5 is finished.
When the argon cylinder 5 needs to be replaced, the sealing cap 10 is firstly removed, then the bottom of the argon cylinder is held by hand, or the bottom of the argon cylinder is sucked by adopting a sucking disc, the argon cylinder 5 is pulled outwards, the movable door stopper 9 is separated from the fixed door stopper 8, then most of the argon cylinder 5 can be pulled out of the shell 1, an operator can hold the argon cylinder 5 by hand to rotate, the argon cylinder 5 is unscrewed from the joint 6, then a new argon cylinder 5 is mounted on the joint 6 through the process of mounting the argon cylinder 5, and after the argon cylinder 5 is pushed into the shell 1, the sealing cap 10 is covered, so that the replacement of the argon cylinder 5 is completed.
The above embodiments are merely illustrative of the principles and effects of the present invention, and some of the applied embodiments, and are not intended to limit the invention; it should be noted that modifications and improvements can be made by those skilled in the art without departing from the inventive concept, and these are all within the scope of the present invention.