CN213903369U

CN213903369U - Porous movable collimator device used in sample chamber

Info

Publication number: CN213903369U
Application number: CN202022928300.XU
Authority: CN
Inventors: 刘鑫
Original assignee: Tianjin Bozhi Weiye Technology Co ltd
Current assignee: Tianjin Bozhi Weiye Technology Co ltd
Priority date: 2020-12-09
Filing date: 2020-12-09
Publication date: 2021-08-06
Anticipated expiration: 2030-12-09

Abstract

The utility model relates to a X fluorescence spectrum appearance technical field specifically is a porous collimator device that removes for in sample room, including the collimator base of sample room inner wall, there is the collimator body on the collimator base, and seted up the trompil groove on the collimator body, sliding connection has the sliding plate on the collimator base, the porous movable guide rail of fixedly connected with on the sliding plate, one side fixedly connected with limiting plate of sliding plate, and transversely run through the lead screw that has the nut on the limiting plate, the cover is equipped with the screw seal support on the lead screw, and the junction of lead screw and screw seal support is provided with the sealing washer, the lead screw is connected with the outside drive arrangement of sample room. The utility model discloses a with the drive arrangement setting of porous removal collimater in the outside of sample room, avoided the too big problem of sample room volume to set up lead screw sealing support and sealing washer in the junction that the lead screw runs through the sample room, the leakproofness of better assurance sample room more does benefit to extraction sample room air.

Description

Porous movable collimator device used in sample chamber

Technical Field

The utility model relates to an X fluorescence spectrum appearance technical field specifically is a porous collimator device that removes for in sample room.

Background

The X-ray fluorescence spectrometer comprises a plurality of systems, wherein an optical path system and a vacuum system are mutually overlapped, the vacuum system is required to contain all optical paths in a vacuum range to reduce attenuation as much as possible, the optical path system is required to transmit fluorescence emitted after X-rays emitted by a light pipe excite a sample to a detector, and a collimator is an important component playing a role in collimating light in the optical path system.

When the spectrum analysis is carried out, the aperture of the collimator needs to be adjusted to be suitable for different detection environments, the multi-hole movable collimator device is a device for switching the aperture of the collimator and is usually a component in a sample chamber, but the volume of the existing multi-hole movable collimator is generally large, and if the existing multi-hole movable collimator is completely placed in a vacuum sample chamber, the volume of the whole sample chamber needs to be large, and the multi-hole movable collimator device is not beneficial to vacuumizing.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a porous collimator device that removes for in the sample room to solve the problem that proposes among the above-mentioned background art.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a porous movable collimator device used in a sample chamber comprises a collimator base fixedly connected to the inner wall of the sample chamber, a collimator body is fixedly connected to the collimator base, a hole opening groove is formed in the collimator body, a sliding plate is slidably connected to one side, close to the inner wall of the sample chamber, of the collimator base, a porous movable guide rail is fixedly connected to the sliding plate, the porous movable guide rail is slidably connected with the collimator body through the hole opening groove, a limiting plate is fixedly connected to one side of the sliding plate, a lead screw with a nut transversely penetrates through the limiting plate, one end of the lead screw penetrates through the sample chamber and extends to the outside of the sample chamber, the end face, close to the collimator body, of the nut is fixedly connected with the limiting plate, a lead screw sealing support is sleeved on the lead screw and located outside the sample chamber, and the end face, close to the sample chamber, of the lead screw sealing support is fixedly connected with the sample chamber, and a sealing ring is arranged at the joint of the lead screw and the lead screw sealing support, and the lead screw is connected with a driving device outside the sample chamber.

Optionally, the driving device includes a stepping motor, an output end of the stepping motor is coaxially connected with a transverse bevel gear through a coupler, and a vertical bevel gear meshed with the transverse bevel gear is sleeved on the lead screw.

Optionally, the outside of step motor is provided with the device frame, just be located one side fixedly connected with backup pad of lead screw on the device frame, the outside threaded connection who just is located the sample room on the lead screw has the sliding block, one side fixedly connected with connecting rod that the sliding block is close to the backup pad, the one end that the sliding block was kept away from to the connecting rod sets firmly the spacing sensor of photoelectricity after running through the backup pad, set up the sliding tray with connecting rod looks adaptation in the backup pad.

Optionally, the top of the supporting plate is fixedly connected with a limiting guide rail, a hole position corresponding to the porous moving guide rail is formed in the limiting guide rail, and the photoelectric limiting sensor and the limiting guide rail are arranged in parallel and are located on the same horizontal plane.

Optionally, a reflector adapted to the photoelectric limiting sensor is arranged in each hole position on the limiting guide rail, the thickness of each reflector is different, the photoelectric limiting sensor is electrically connected with the stepping motor, the photoelectric limiting sensor is a reflector type sensor, and the light emitter and the light receiver are arranged in the same device.

Compared with the prior art, the utility model provides a porous removal collimator device for in sample room possesses following beneficial effect:

1. the utility model has the advantages that the driving device of the porous mobile collimator is arranged outside the sample chamber, so that the problem of overlarge volume of the sample chamber is avoided, and the screw sealing bracket and the sealing ring are arranged at the joint of the screw penetrating through the sample chamber, so that the tightness of the sample chamber is better ensured, and the extraction of the air in the sample chamber is more facilitated;

2. the utility model discloses a set up photoelectricity limit sensor and limit guide, make more accurate and the collimater adaptation of hole site on the porous mobile rail, improve the precision of device, make the testing result more accurate.

Drawings

Fig. 1 is a top view of the structure of the present invention;

fig. 2 is a cross-sectional view of the internal structure of the screw rod sealing bracket of the present invention;

fig. 3 is a front view of the structure of the present invention;

fig. 4 is a perspective view of the structure of the present invention.

In the figure: 1. a sample chamber; 2. a collimator base; 3. a collimator body; 4. opening a hole groove; 5. a sliding plate; 6. a porous moving guide rail; 7. a limiting plate; 8. a nut; 9. a lead screw; 10. a lead screw sealing bracket; 11. a seal ring; 12. a drive device; 121. a stepping motor; 122. a transverse bevel gear; 123. a vertical bevel gear; 13. a device frame; 14. a support plate; 15. a connecting rod; 16. a photoelectric limit sensor; 17. limiting a guide rail; 18. and a slider.

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 work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a porous movable collimator device used in a sample chamber comprises a collimator base 2 fixedly connected to the inner wall of a sample chamber 1, a collimator body 3 is fixedly connected to the collimator base 2, a hole-opening groove 4 is formed in the collimator body 3, a sliding plate 5 is slidably connected to one side, close to the inner wall of the sample chamber 1, of the collimator base 2, a porous movable guide rail 6 is fixedly connected to the sliding plate 5, the porous movable guide rail 6 is slidably connected with the collimator body 3 through the hole-opening groove 4, a limiting plate 7 is fixedly connected to one side of the sliding plate 5, a lead screw 9 with a nut 8 transversely penetrates through the limiting plate 7, one end of the lead screw 9 penetrates through the sample chamber 1 and extends to the outside of the sample chamber 1, the end face, close to the collimator body 3, of the nut 8 is fixedly connected with the limiting plate 7, and a lead screw sealing support 10 is sleeved on the lead screw 9 and positioned outside the sample chamber 1, the end face, close to the sample chamber 1, of the lead screw sealing support 10 is fixedly connected with the sample chamber 1, a sealing ring 11 is arranged at the joint of the lead screw 9 and the lead screw sealing support 10, the lead screw sealing support 10 and the sealing ring 11 are arranged at the joint of the lead screw 9, penetrating through the sample chamber 1, so that the sealing performance of the sample chamber 1 is better ensured, and the extraction of air in the sample chamber 1 is more facilitated;

the screw 9 is connected with a driving device 12 outside the sample chamber 1, the driving device 12 comprises a stepping motor 121, the stepping motor 121 is connected with an external power supply and a control system through a lead, the output end of the stepping motor 121 is coaxially connected with a transverse bevel gear 122 through a coupler, a vertical bevel gear 123 meshed with the transverse bevel gear 122 is sleeved on the screw 9, the driving device 12 of the porous mobile collimator is arranged outside the sample chamber 1, and the problem that the volume of the sample chamber 1 is too large is avoided;

a device frame 13 is arranged outside the stepping motor 121, a support plate 14 is fixedly connected to one side of the device frame 13, which is positioned on the screw 9, a sliding block 18 is connected to the outer portion of the screw 9, which is positioned on the sample chamber 1, through threads, one side of the sliding block 18, which is close to the support plate 14, is fixedly connected with a connecting rod 15, one end of the connecting rod 15, which is far away from the sliding block 18, penetrates through the support plate 14 and is fixedly provided with a photoelectric limit sensor 16, the support plate 14 is provided with a sliding groove matched with the connecting rod 15, the sliding block 18 and the sliding groove are not shown in the drawing, the top of the support plate 14 is fixedly connected with a limit guide rail 17, a hole position corresponding to the porous moving guide rail 6 is arranged on the limit guide rail 17, the photoelectric limit sensor 16 and the limit guide rail 17 are arranged in parallel and are positioned on the same horizontal plane, and a reflecting plate matched with the photoelectric limit sensor 16 is arranged in each hole position on the limit guide rail 17, and the thickness of the reflecting plate is all different, the reflecting plate of different thickness of photoelectric limit sensor 16 detectable, photoelectric limit sensor 16 and step motor 121 electric connection, and photoelectric limit sensor 16 is the reflecting plate type sensor, illuminator and receipts light ware pack into same device, utilize the reflection principle to accomplish the photoelectric control effect, photoelectric limit sensor 16 and spacing guide rail 17 make the hole site on the porous mobile rail 6 more accurate with the collimater adaptation, improve the precision of device, make the testing result more accurate.

The working principle is as follows: when the aperture of the collimator body 2 needs to be adjusted, the stepping motor 121 is started through the control system, the motor drives the screw rod 9 to rotate through the transverse bevel gear 122 and the vertical bevel gear 123, so that the porous moving guide rail 6 on the sliding plate 5 is driven to move in the perforated groove 4 through the nut 8, meanwhile, the sliding block 18 drives the photoelectric limiting sensor 16 to move, the photoelectric limiting sensor 16 receives signals through the reflecting plates with different thicknesses on the limiting guide rail 17, and the stepping motor 121 is controlled to stop rotating after the photoelectric limiting sensor 16 detects the appointed hole position on the limiting guide rail 17.

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. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

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

1. A multi-aperture mobile collimator arrangement for use in a sample chamber, comprising a collimator base (2) fixedly attached to an inner wall of the sample chamber (1), characterized in that: the collimator comprises a collimator base (2), a collimator body (3) is fixedly connected to the collimator base (2), a hole opening groove (4) is formed in the collimator body (3), a sliding plate (5) is slidably connected to one side, close to the inner wall of a sample chamber (1), of the collimator base (2), a porous moving guide rail (6) is fixedly connected to the sliding plate (5), the porous moving guide rail (6) is slidably connected with the collimator body (3) through the hole opening groove (4), a limiting plate (7) is fixedly connected to one side of the sliding plate (5), a lead screw (9) with a nut (8) transversely penetrates through the limiting plate (7), one end of the lead screw (9) penetrates through the sample chamber (1) and extends to the outside of the sample chamber (1), the end face, close to the collimator body (3), of the nut (8) is fixedly connected with the limiting plate (7), and a lead screw sealing support (10) is sleeved on the lead screw (9) and located outside the sample chamber (1), the end face, close to the sample chamber (1), of the lead screw sealing support (10) is fixedly connected with the sample chamber (1), a sealing ring (11) is arranged at the joint of the lead screw (9) and the lead screw sealing support (10), and the lead screw (9) is connected with a driving device (12) outside the sample chamber (1).

2. A multi-aperture moving collimator set for use in a sample chamber as claimed in claim 1, wherein: the driving device (12) comprises a stepping motor (121), the output end of the stepping motor (121) is coaxially connected with a transverse bevel gear (122) through a coupler, and a vertical bevel gear (123) meshed with the transverse bevel gear (122) is sleeved on the lead screw (9).

3. A multi-aperture moving collimator set for use in a sample chamber as claimed in claim 2, wherein: the outside of step motor (121) is provided with device frame (13), device frame (13) are gone up and are located one side fixedly connected with backup pad (14) of lead screw (9), the outside threaded connection who just is located sample room (1) on lead screw (9) has sliding block (18), one side fixedly connected with connecting rod (15) that sliding block (18) are close to backup pad (14), the one end that sliding block (18) were kept away from in connecting rod (15) is run through backup pad (14) and is set firmly photoelectricity limit sensor (16), set up the sliding tray with connecting rod (15) looks adaptation on backup pad (14).

4. A multi-aperture moving collimator set for use in a sample chamber as claimed in claim 3, wherein: the top fixedly connected with limit guide rail (17) of backup pad (14), and set up the hole site corresponding with porous mobile rail (6) on limit guide rail (17), photoelectric limit sensor (16) and limit guide rail (17) parallel arrangement just are in same horizontal plane.

5. A multi-aperture moving collimator set for use in a sample chamber as claimed in claim 4, wherein: all be provided with the reflector panel with photoelectricity spacing sensor (16) looks adaptation in every hole site on spacing guide rail (17), and every reflector panel thickness all is different, photoelectricity spacing sensor (16) and step motor (121) electric connection, and photoelectricity spacing sensor (16) are reflector panel type sensor, and the illuminator is packed into in the same device with receiving the light ware.