CN217425700U - Fixing device for scintillation crystal assembly - Google Patents
Fixing device for scintillation crystal assembly Download PDFInfo
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- CN217425700U CN217425700U CN202220762257.0U CN202220762257U CN217425700U CN 217425700 U CN217425700 U CN 217425700U CN 202220762257 U CN202220762257 U CN 202220762257U CN 217425700 U CN217425700 U CN 217425700U
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Abstract
The utility model belongs to the technical field of crystal fixing device, especially, relate to a fixing device for scintillation crystal subassembly, including the sensor casing, be connected with protective housing in the sensor casing, set up the latch mechanism between sensor casing and the protective housing, fixedly connected with scintillation crystal subassembly in the protective housing, the open end butt of protective housing sets up in the sensor casing, the blind end fixedly connected with of protective housing holds the terminal surface center of end cover, the terminal surface edge butt of holding the end cover is on the lateral wall of sensor casing, be provided with spacing subassembly between the one end that scintillation crystal subassembly is close to protective housing's open end and the sensor casing inside wall; a first cavity which is relatively closed and is in a vacuum state is formed in the protective shell, and a light shielding layer is bonded between the scintillation crystal component and the protective shell. The utility model discloses simple structure, convenient operation can guarantee the stationary state of scintillation crystal subassembly to and stable user state.
Description
Technical Field
The utility model belongs to the technical field of the crystal fixing device, especially, relate to a fixing device for scintillation crystal subassembly.
Background
In the process of developing a miniaturized gamma ray sensor used on wearable equipment, when a scintillation crystal component, a pulse amplifier and a PCB are fixed, the PCB is easy to cause interference on the scintillation crystal; the scintillation crystal component is easy to be extruded and collided in the use process; in order to ensure that the scintillation crystal assembly is not disturbed during use, avoid high temperature effects, and avoid cracking due to vibration, a need exists for a fixture for the scintillation crystal assembly.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a fixing device for scintillation crystal subassembly to solve above-mentioned problem, reach safety, stable fixed scintillation crystal subassembly, guarantee the purpose of the good user state of scintillation crystal subassembly.
In order to achieve the above object, the utility model provides a following scheme: a fixing device for a scintillation crystal assembly comprises a sensor shell, wherein a protective shell is connected in the sensor shell, a clamping mechanism is arranged between the sensor shell and the protective shell, the scintillation crystal assembly is fixedly connected in the protective shell, the opening end of the protective shell is abutted and arranged in the sensor shell, the closed end of the protective shell is fixedly connected with the end face center of a handheld end cover, the end face edge of the handheld end cover is abutted and connected on the outer side wall of the sensor shell, and a limiting assembly is arranged between one end, close to the opening end of the protective shell, of the scintillation crystal assembly and the inner side wall of the sensor shell; the protective shell is internally provided with a first cavity which is relatively closed and is in a vacuum state, and a light shielding layer is bonded between the scintillation crystal component and the protective shell.
Preferably, the clamping mechanism includes the barrel, passes a plurality of jump rings of barrel, barrel fixed connection is in on the sensor housing inside wall, it is a plurality of the end respectively butt that entad of jump ring is in on the lateral wall of protective housing, it is a plurality of the centrifugation end difference sliding connection of jump ring is in on the inside wall of sensor housing, it is a plurality of the middle-end difference sliding connection of jump ring is in the lateral wall of barrel.
Preferably, a plurality of clamping grooves are formed in the outer side wall of the protective shell, a plurality of arc-shaped holes are formed in the side wall of the barrel, the centripetal ends of the clamping springs are respectively in a plurality of abutting connection in the clamping grooves and matched with the clamping grooves, and the middle ends of the clamping springs respectively penetrate through the arc-shaped holes and are respectively in sliding connection in the arc-shaped holes.
Preferably, the limiting assembly comprises a first limiting block close to the opening end of the protective shell, one end of the first limiting block is fixedly connected to the inner side wall of the sensor shell, a limiting groove is formed in the light emitting end of the scintillation crystal assembly, and the other end of the first limiting block abuts against the limiting groove.
Preferably, the limiting groove comprises an arc straight groove formed in the light emitting end of the scintillation crystal assembly and an arc inclined plane groove formed in the light emitting end of the scintillation crystal assembly, the bottom of the arc inclined plane groove is communicated with the bottom of the arc straight groove, and the first limiting block abuts against the bottom of the arc straight groove.
Preferably, the handheld end cover comprises a cover plate, a plurality of ribs circumferentially and fixedly connected to one end face of the cover plate at equal intervals, and a sealing membrane abutted between the other end face of the cover plate and the outer side wall of the sensor shell.
Preferably, the jump ring is the arc structure, the centrifugation end of jump ring is two landing legs, two landing leg sliding connection is in on the inside wall of sensor housing, the center fixedly connected with second stopper in arc hole, the second stopper is located the middle-end of jump ring is inboard.
Preferably, a rubber ring is axially abutted between the opening end of the protective shell and the inner side wall of the sensor shell.
The utility model discloses has following technological effect: the clamping mechanism is mainly used for fixedly connecting the scintillation crystal assembly into the sensor shell, and the scintillation crystal assembly can be arranged into the sensor shell through manually operating the handheld end cover; the limiting assembly is mainly used for limiting the fixed angle of the scintillation crystal assembly when the scintillation crystal assembly enters the sensor shell, so that the scintillation crystal assembly can be effectively clamped by the clamping mechanism; the main purpose of vacuumizing the protective shell is to play a certain heat preservation role on the scintillation crystal assembly, and meanwhile, when the scintillation crystal assembly is in a vibration state, the first cavity can effectively relieve the scintillation crystal assembly from colliding with the inner side wall of the sensor shell due to sudden vibration or being cracked due to the fact that self vibration cannot be transmitted in time; the main purpose of the shading layer is to ensure good light transmission effect of the scintillation crystal component and avoid the influence of stray light.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic front view of the fixing device of the present invention;
FIG. 2 is a schematic left-side sectional view of the fixing device of the present invention;
fig. 3 is a schematic sectional view of the fixing device of the present invention;
FIG. 4 is a left side view of the limiting assembly of the present invention;
fig. 5 is a rear view of the limiting assembly of the present invention;
wherein, 1, a sensor shell; 2. a cover plate; 3. a rib; 4. a protective housing; 5. a first cavity; 6. a barrel; 7. a second cavity; 8. a clamp spring; 9. a card slot; 10. a rubber ring; 11. a photoelectric conversion unit; 12. a light guide film; 13. a scintillation crystal; 14. a first stopper; 15. a bevel; 16. an arc-shaped hole; 17. a second limiting block; 18. an arc-shaped straight groove; 19. an arc-shaped inclined plane groove; 20. sealing the membrane; 21. a third cavity.
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.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Referring to fig. 1-5, the utility model provides a fixing device for scintillation crystal assembly, including sensor housing 1, sensor housing 1 is internal to be connected with protective housing 4, set up the latch mechanism between sensor housing 1 and protective housing 4, the scintillation crystal assembly is fixed to be connected with in protective housing 4, the open end butt of protective housing 4 sets up in sensor housing 1, the closed end of protective housing 4 is fixed with the terminal surface center of handheld end cover, the terminal surface limit portion butt of handheld end cover is on the lateral wall of sensor housing 1, scintillation crystal assembly is close to and is provided with spacing subassembly between the open end of protective housing 4 and the sensor housing 1 inside wall; a first cavity 5 which is relatively closed and is in a vacuum state is formed in the protective shell 4, and a light shielding layer (not marked in the figure) is bonded between the scintillation crystal assembly and the protective shell 4.
The clamping mechanism is mainly used for fixedly connecting the scintillation crystal assembly in the sensor shell 1, and the scintillation crystal assembly can be arranged in the sensor shell 1 by manually operating the handheld end cover; the limiting assembly is mainly used for limiting the fixed angle of the scintillation crystal assembly when the scintillation crystal assembly enters the sensor shell 1, so that the scintillation crystal assembly can be effectively clamped by the clamping mechanism; the main purpose of vacuumizing the protective shell 4 is to play a certain heat preservation role on the scintillation crystal assembly, and meanwhile, when the scintillation crystal assembly is in a vibration state, the first cavity 5 can effectively relieve the scintillation crystal assembly from colliding with the inner side wall of the sensor shell 1 due to sudden vibration or being cracked due to the fact that self vibration cannot be transmitted in time; the main purpose of the shading layer is to ensure good light transmission effect of the scintillation crystal component and avoid the influence of stray light; the shading layer is an aluminum film layer.
Further optimize the scheme, the clamping mechanism includes barrel 6, passes a plurality of jump rings 8 of barrel 6, and 6 fixed connection of barrel are on the 1 inside wall of sensor housing, and the end of entad of a plurality of jump rings 8 butt respectively on the lateral wall of protective housing 4, and the centrifugation end of a plurality of jump rings 8 is sliding connection respectively on the inside wall of sensor housing 1, and the middle-end difference sliding connection of a plurality of jump rings 8 is in the lateral wall of barrel 6.
Get into sensor housing 1 when the open end of protective housing 4, extrude a plurality of jump rings 8 in proper order, make jump ring 8 compressed, the end centripetal of jump ring 8 is pushed and is removed to the centrifugation end, gets into sensor housing 1 completely through handheld end cover when protective housing 4, and the end centripetal butt of a plurality of jump rings 8 is in protective housing 4's the outside to realize protective housing 4 relative position's fixed.
Further optimize the scheme, seted up a plurality of draw-in grooves 9 on the lateral wall of protective housing 4, seted up a plurality of arc holes 16 on the lateral wall of barrel 6, a plurality of jump rings 8 centripetal end correspond the butt respectively in a plurality of draw-in grooves 9 and with a plurality of draw-in grooves 9 looks adaptation, the middle-end of a plurality of jump rings 8 corresponds respectively passes a plurality of arc holes 16 and corresponds sliding connection respectively in a plurality of arc holes 16.
In order to guarantee the fixed effect of protective housing 4, get into sensor housing 1 completely through handheld end cover when protective housing 4, rotate handheld end cover to drive protective housing 4 and rotate, make in a plurality of draw-in grooves 9 are slided to the centripetal end correspondence of a plurality of jump rings 8, and the butt is in a plurality of draw-in grooves 9, thereby realized better fixed effect.
Further optimize the scheme, spacing subassembly includes the first stopper 14 that is close to the 4 open ends of protective housing, and the one end fixed connection of first stopper 14 is on the inside wall of sensor housing 1, and the spacing groove has been seted up to the light-emitting end of scintillation crystal subassembly, and the other end butt of first stopper 14 is at the spacing inslot.
When the protective shell 4 completely enters the sensor shell 1 through the handheld end cover, the centripetal ends of the clamp springs 8 correspondingly slide into the clamp grooves 9, and the first limiting blocks 14 slide into the limiting grooves, so that the installation angle and the axial fixing state of the scintillation crystal assembly are ensured.
Further optimize the scheme, the spacing groove includes the arc straight flute 18 of seting up at scintillation crystal subassembly light-emitting end, sets up the arc inclined plane groove 19 at scintillation crystal subassembly light-emitting end, and the bottom of arc inclined plane groove 19 communicates with the bottom of arc straight flute 18, and first stopper 14 butt is in the bottom of arc straight flute 18.
When the scintillation crystal assembly is in a fixed state, the first limit block 14 is located in the arc-shaped straight groove 18, and the first limit block 14 can only slide towards the arc-shaped inclined plane groove 19; when the scintillation crystal assembly needs to be disassembled, the handheld end cover is manually rotated, so that the protective shell 4 drives the scintillation crystal assembly to rotate towards the arc-shaped inclined plane groove 19, the first limiting block 14 gradually slides into the arc-shaped inclined plane groove 19, the clamp spring 8 gradually slides out of the clamp groove 9 at the moment, and after the first limiting block 14 completely slides out of the arc-shaped inclined plane groove 19, the clamp spring 8 completely slides out of the clamp groove 9; at this time, the protective shell 4 and the scintillation crystal component are sequentially pulled out of the sensor shell 1 through the handheld end cover.
Further optimize the scheme, handheld end cover includes apron 2, a plurality of circumference equidistant fixed connection are at the bead 3 on 2 terminal surfaces of apron, butt at 2 other terminal surfaces of apron and the sealed diaphragm 20 between the sensor housing 1 lateral wall.
According to a further optimized scheme, the clamp spring 8 is of an arc-shaped structure, the centrifugal end of the clamp spring 8 is provided with two support legs, the two support legs are connected to the inner side wall of the sensor shell 1 in a sliding mode, the center of the arc-shaped hole 16 is fixedly connected with a second limiting block 17, and the second limiting block 17 is located on the inner side of the middle end of the clamp spring 8; a third cavity 21 is arranged between the protective shell 4 and the cylinder 6, a second cavity 7 is arranged between the cylinder 6 and the sensor shell 1, the centripetal end of the clamp spring 8 is located in the third cavity 21, and the centrifugal end of the clamp spring 8 is located in the second cavity 7.
When the snap spring 8 protective housing 4 is compressed, the centrifugal end of the snap spring 8 is formed by two support legs which slide towards two sides respectively, so that the snap spring 8 generates elasticity, and the centripetal end of the snap spring 8 is always located in the third cavity 21 under the limiting action of the second limiting block 17, so that the centripetal end of the snap spring 8 is prevented from entering the arc-shaped hole 16, and the snap spring 8 is guaranteed to rebound smoothly.
In a further optimized scheme, a rubber ring 10 is axially abutted between the opening end of the protective shell 4 and the inner side wall of the sensor shell 1; the inner side of one end of the rubber ring 10 close to the protective shell 4 is provided with an inclined plane 15, and the opening end of the protective shell 4 is abutted against the inclined plane 15 and is matched with the inclined plane 15.
In order to avoid the scintillation crystal assembly being deliquesced in the use process, the light outlet end of the scintillation crystal 13 is relatively sealed through the rubber ring 10, and the service life of the whole scintillation crystal assembly is ensured.
Further optimize the scheme, the scintillation crystal assembly adopts the existing structure, including scintillation crystal 13, the photoelectric conversion unit 11 that is located scintillation crystal 13 light-emitting end, set up the leaded light diaphragm 12 between scintillation crystal 13 light-emitting end and photoelectric conversion unit 11. The light guide film 12 adopts light guide silica gel, so that the flash crystal 13 is prevented from deliquescing, and the light path loss can be reduced; the photoelectric conversion unit 11 is preferably a hamamatsu S5106 series silicon photodiode, ensuring sufficient resolution and sensitivity. As shown in fig. 2, 4-5, the arc-shaped straight groove 18 and the arc-shaped inclined plane groove 19 have a certain radian, the radial section of the arc-shaped straight groove 18 is a rectangle with the same shape, and the radial section of the arc-shaped inclined plane groove 19 is a triangle with variable size; the arc straight groove 18 and the arc inclined plane groove 19 are arranged on one side of the photoelectric conversion unit 11 far away from the scintillation crystal 13, along with the rotation of the scintillation crystal assembly, the first limiting block 14 slides into the arc straight groove 18 and slides out from the inclined plane of the arc inclined plane groove 19, and therefore the purpose of taking out the scintillation crystal assembly is achieved.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.
Claims (8)
1. A fixture for a scintillation crystal assembly, characterized by: the sensor comprises a sensor shell (1), a protective shell (4) is connected in the sensor shell (1), a clamping mechanism is arranged between the sensor shell (1) and the protective shell (4), a scintillation crystal component is fixedly connected in the protective shell (4), the open end of the protective shell (4) is abutted to the inside of the sensor shell (1), the closed end of the protective shell (4) is fixedly connected with the end face center of a handheld end cover, the end face edge of the handheld end cover is abutted to the outer side wall of the sensor shell (1), and a limiting component is arranged between one end, close to the open end of the protective shell (4), of the scintillation crystal component and the inner side wall of the sensor shell (1); the utility model discloses a scintillation crystal assembly, including protective housing (4), set up in protective housing (4) relative confined and vacuum pumping state's first cavity (5), scintillation crystal subassembly with it has the light shield layer to bond between protective housing (4).
2. The fixture for a scintillation crystal assembly of claim 1, wherein: clamping mechanism includes barrel (6), passes a plurality of jump rings (8) of barrel (6), barrel (6) fixed connection be in on sensor housing (1) inside wall, it is a plurality of the end respectively butt of entad of jump ring (8) is in on the lateral wall of protective housing (4), it is a plurality of the centrifugal end difference sliding connection of jump ring (8) is in on the inside wall of sensor housing (1), it is a plurality of the middle-end difference sliding connection of jump ring (8) is in the lateral wall of barrel (6).
3. The fixture for a scintillation crystal assembly of claim 2, wherein: a plurality of clamping grooves (9) are formed in the outer side wall of the protective shell (4), a plurality of arc-shaped holes (16) are formed in the side wall of the barrel (6), the centripetal ends of the clamp springs (8) correspond to the butt joints in the clamping grooves (9) and are matched with the clamping grooves (9) in a plurality of modes, and the middle ends of the clamp springs (8) correspond to the arc-shaped holes (16) and are connected in the arc-shaped holes (16) in a sliding mode in a plurality of modes.
4. The fixture for a scintillation crystal assembly of claim 1, wherein: the limiting assembly comprises a first limiting block (14) close to the opening end of the protective shell (4), one end of the first limiting block (14) is fixedly connected to the inner side wall of the sensor shell (1), a limiting groove is formed in the light emitting end of the scintillation crystal assembly, and the other end of the first limiting block (14) is abutted to the limiting groove.
5. The fixture for a scintillation crystal assembly of claim 4, wherein: the spacing groove is including seting up arc straight flute (18), the seting up of scintillation crystal subassembly light-emitting end arc inclined plane groove (19) of scintillation crystal subassembly light-emitting end, the bottom of arc inclined plane groove (19) with the bottom intercommunication of arc straight flute (18), first stopper (14) butt is in the bottom of arc straight flute (18).
6. The fixture for a scintillation crystal assembly of claim 1, wherein: the handheld end cover comprises a cover plate (2), a plurality of ribs (3) which are circumferentially and fixedly connected on one end face of the cover plate (2) at equal intervals, and a sealing membrane (20) which is abutted to the other end face of the cover plate (2) and between the outer side wall of the sensor shell (1).
7. The fixture for a scintillation crystal assembly of claim 3, wherein: jump ring (8) are the arc structure, the centrifugation end of jump ring (8) is two landing legs, two landing leg sliding connection is in on the inside wall of sensor housing (1), the center fixedly connected with second stopper (17) of arc hole (16), second stopper (17) are located the middle-end of jump ring (8) is inboard.
8. The fixture for a scintillation crystal assembly of claim 1, wherein: and a rubber ring (10) is abutted between the opening end of the protective shell (4) and the axial direction of the inner side wall of the sensor shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220762257.0U CN217425700U (en) | 2022-04-02 | 2022-04-02 | Fixing device for scintillation crystal assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220762257.0U CN217425700U (en) | 2022-04-02 | 2022-04-02 | Fixing device for scintillation crystal assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217425700U true CN217425700U (en) | 2022-09-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220762257.0U Active CN217425700U (en) | 2022-04-02 | 2022-04-02 | Fixing device for scintillation crystal assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217425700U (en) |
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2022
- 2022-04-02 CN CN202220762257.0U patent/CN217425700U/en active Active
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