CN212905486U - Connecting assembly, detection module and flicker detection device - Google Patents

Abstract

The utility model relates to the field of medical equipment, a coupling assembling, detection module and scintillation detection device is disclosed, coupling assembling includes connecting piece and shading pad, and the connecting piece has the centre bore, is provided with first installation department on the pore wall for connect the scintillation detector who stretches into the centre bore, the connecting piece still includes the second installation department, is provided with the annular on the second installation department, and the shading pad is arranged in the annular. And the second installation part is connected with the darkroom, so that the scintillation detector and the darkroom are butted and connected with each other. The annular groove makes external light need just can get into the darkroom through tortuous passageway, has played effectual shading effect, and the shading pad can effectively block the light that gets into in the darkroom from the junction of scintillation detection device and darkroom, has further played the shading effect, avoids the scintillation of external light influence sample in the darkroom to detect. The detection module and the flicker detection device with the connection assembly have the beneficial effects.

Description

Connecting assembly, detection module and flicker detection device

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a coupling assembling, detection module and scintillation detection device.

Background

The scintillation detection device comprises a case and a detection module arranged in the case, wherein the detection module generally comprises a darkroom for providing a detection environment and a scintillation detector for scintillation detection, and a detection head of the scintillation detector is butted with the darkroom, so that a sample to be detected placed in the darkroom can be subjected to scintillation detection. The existing scintillation detector has poor light shielding performance, and light leakage often occurs at the joint of a darkroom and the scintillation detector, so that the detection precision is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a coupling assembling can be used for the connection between scintillation detector and the darkroom to effectively the shading to the junction. And provides a detection module and a flicker detection device with the connection assembly.

In a first aspect, the present invention provides a connection assembly for butt-jointing and interconnecting a scintillation detector and a darkroom, comprising:

the connector is provided with a central hole, a first mounting part is arranged on the inner wall of the central hole and used for connecting the scintillation detector extending into the central hole, and the inner wall of the central hole can surround the outer wall of the scintillation detector; the connecting piece is also provided with a second mounting part, the second mounting part is provided with an end face perpendicular to the axis of the central hole, and the end face is provided with a ring groove circumferentially surrounding along the central hole;

a light blocking pad capable of being received in the ring groove.

As an improvement of the technical scheme, the second mounting part is provided with a plurality of mounting holes, and the mounting holes are communicated with the annular groove; the connecting assembly passes through the mounting hole through a fastener to connect the darkroom.

As a further improvement of the above technical solution, a plurality of through holes are provided on the light shielding pad, the positions of the through holes can correspond to the mounting holes, and the fastening member can pass through the through holes.

As a further improvement of the above technical solution, the light shielding pad is made of a soft material, and the thickness of the light shielding pad in a natural state is not less than the depth of the ring groove.

As a further improvement of the technical scheme, the first installation part is of an internal thread structure and is used for matching and screwing the scintillation detector provided with the external thread.

As a further improvement of the above technical solution, the inner wall of the central hole is further provided with a supporting portion for supporting the scintillation detector extending into the central hole. .

In a second aspect, the present invention provides a detection module, including:

the scintillation detector is provided with a detection head, and a connecting part is arranged on the detection head;

the darkroom is provided with an inner cavity for accommodating an object to be detected and a first opening communicated with the inner cavity;

in the connecting assembly of any one of the above technical solutions, the second mounting portion is connected to the darkroom, and one end of the connecting member extends into the first opening, and the central hole is communicated with the inner cavity; the probe extends into the central hole, and the connecting part is connected with the first mounting part; the terminal surface faces the darkroom and the shading pad is clamped between the second installation part and the darkroom.

As an improvement of the above technical solution, an annular protrusion is provided on the outer wall of the darkroom around the first opening, the protrusion extends into the annular groove and abuts against the light-shielding pad, and the end face is attached to the outer wall of the darkroom.

In a third aspect, the present invention provides a flicker detecting device, including:

a case provided with a bin opening;

the objective table comprises a bearing part and a shading part, wherein the bearing part is used for bearing a sample to be tested;

the detection module of any one of the above technical solutions is located inside the chassis, the darkroom is further provided with a second opening communicated with the inner cavity, the objective table can at least partially enter and exit the chassis through the bin opening, the objective table can stretch the bearing portion into the inner cavity through the second opening, the shading portion can be sealed by the second opening, and the detection head of the scintillation detector is used for performing scintillation detection on a sample to be detected located in the inner cavity.

The utility model discloses following beneficial effect has at least: the first installation part of the connecting assembly is used for connecting the scintillation detector extending into the center hole and is connected with the darkroom through the second installation part, so that the scintillation detector and the darkroom are in butt joint and are connected with each other. The annular groove makes external light need just can get into the darkroom through tortuous passageway, and the light that most probably got into the darkroom can be weakened through blockking and absorbing of setting a camera to tortuous passageway, has played effectual shading effect, and the shading pad can effectively block the light that gets into in the darkroom from the junction of scintillation detection device and darkroom, has further played the shading effect, avoids the scintillation detection of outside light influence sample in the darkroom. The detection module and the flicker detection device with the connection assembly have the beneficial effects.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention.

Drawings

FIG. 1 is a schematic view of a connection assembly of one embodiment;

FIG. 2 is a schematic view of another angle in FIG. 1;

FIG. 3 is a schematic diagram of the connection state of one embodiment;

FIG. 4 is a cross-sectional view of the embodiment of FIG. 3;

FIG. 5 is an enlarged view of a portion of FIG. 4 at I;

FIG. 6 is a partially exploded view of a detection module according to one embodiment;

FIG. 7 is a schematic diagram of a flicker detection apparatus according to an embodiment.

Detailed Description

The conception and the resulting technical effects of the present invention will be described clearly and completely with reference to the following embodiments, so that the objects, features and effects of the present invention can be fully understood. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention.

In the description of the embodiments of the present invention, if an orientation description is referred to, for example, the directions or positional relationships indicated by "upper", "lower", "front", "rear", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, only for convenience of description and simplification of description, but not for indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of the embodiments of the present invention, if a feature is referred to as being "disposed", "fixed", "connected", or "mounted" on another feature, it can be directly disposed, fixed, or connected to the other feature or indirectly disposed, fixed, connected, or mounted on the other feature. In the description of the embodiments of the present invention, if "a plurality" is referred to, it means one or more, if "a plurality" is referred to, it means two or more, if "greater than", "less than" or "more than" is referred to, it is understood that the number is not included, and if "more than", "less than" or "within" is referred to, it is understood that the number is included. If reference is made to "first" or "second", this should be understood to distinguish between features and not to indicate or imply relative importance or to implicitly indicate the number of indicated features or to implicitly indicate the precedence of the indicated features.

The scintillation detection usually forms a dark environment through a darkroom, a sample to be detected is placed in the darkroom, a detection head of a scintillation detector is butted with the darkroom so as to carry out scintillation detection on the sample, and a photoelectric signal is formed so as to obtain required data. However, the requirement of the scintillation detection on the shading of the environment is harsh, and the light entering the darkroom from the outside directly affects the detection result, so the darkroom and the butt joint of the darkroom and the scintillation detector have high shading performance.

Fig. 1 to 3 respectively show a structure and a connection state of a connection assembly 100 of an embodiment, and referring to fig. 1 to 3, the connection assembly 100 of the embodiment is used for butting and connecting a scintillation detector 300 and a darkroom 200, and comprises a connection member 120 and a light shielding pad 110. The connecting member 120 has a central hole 121, the scintillation detector 300 can penetrate into the central hole 121, the inner wall of the central hole 121 is provided with a first mounting portion 122 for connecting the scintillation detector 300 extending into the central hole 121, and the inner wall of the central hole 121 can surround the outer wall of the scintillation detector 300. The connecting member 120 is further provided with a second mounting portion 123, the second mounting portion 123 has an end surface 124 perpendicular to the axis of the central hole 121, the end surface 124 is provided with an annular groove 125 circumferentially surrounding the central hole 121, and the light blocking pad 110 can be accommodated in the annular groove 125. The second mounting part 123 is connected to the darkroom 200, thereby achieving the docking and interconnection of the scintillation detector 300 and the darkroom 200. The annular groove 125 makes external light need just can get into the darkroom 200 through tortuous passageway, tortuous passageway can weaken most probably get into the light of darkroom 200 through blockking and absorbing to light, has played effectual shading effect, the shading pad 110 is compressed tightly in the annular groove 125 by second installation department 123 and darkroom 200, further played the shading effect, can effectively block the light that gets into the darkroom 200 from the junction of scintillation detection device and darkroom 200, avoid influencing the scintillation detection of the interior sample of darkroom 200.

Referring to fig. 1 to 3, in some embodiments, a plurality of mounting holes 126 may be formed in the second mounting portion 123, the mounting holes 126 communicate with the annular groove 125, the connecting assembly 100 passes through the mounting holes 126 by fasteners to connect the dark room 200, and the plurality of mounting holes 126 may be distributed around the central hole 121 of the connecting member 120 along the second mounting portion 123 to ensure the reliability of the connection.

Referring to fig. 1 and 2, in some embodiments, in order to avoid interference of the light shielding pad 110 with the fastening member, a through hole 111 or an indentation may be provided at a corresponding position on the light shielding pad 110. In this embodiment, the light-shielding pad 110 is provided with a plurality of through holes 111, and the light-shielding pad 110 can rotate in the ring groove 125 relative to the second mounting portion 123, so that the positions of the through holes 111 correspond to the mounting holes 126, and when connecting, the fasteners can pass through the through holes 111.

Referring to fig. 3, 4 and 5, in a further preferred embodiment, the light shielding pad 110 may be made of a soft material, such as foam, rubber, etc., and the thickness of the light shielding pad 110 in a natural state is not less than the depth of the ring groove 125, and the specific thickness may be set according to specific installation requirements, and the function of the light shielding pad 110 is that, when the connecting member 120 is connected to the dark room 200, the light shielding pad 110 can be compressed properly, so that the two sides of the light shielding pad 110 can be attached to the surfaces of the dark room 200 and the ring groove 125, thereby effectively blocking external light from entering the dark room 200.

In other embodiments, the light-shielding pad 110 made of soft material does not need to have a relief structure such as the through hole 111, and the fastening member can be a standard screw, and when the second mounting portion 123 and the dark room 200 are connected by the fastening member, the fastening member can pass through the light-shielding pad 110 placed in the ring groove 125. Therefore, the light shielding pad 110 does not interfere with the fastening member, and thus, it is not necessary to provide a relief structure such as a through hole 111 in the light shielding pad 110.

It should be understood that the connection manner of the second installation part 123 and the darkroom 200 is not limited, as long as the connection between the connection assembly 100 and the darkroom 200 can be achieved, and in addition to the above manner, the two can also be connected by other connection manners, such as adhesion, or a clamping structure can be arranged between the second installation part 123 and the position of the darkroom 200 for connecting the second installation part 123, and the two can be connected by clamping.

In the above embodiment, the first mounting portion 122 may be an internal thread structure (not shown in the drawings) for engaging and screwing the scintillation detector 300 provided with an external thread structure (refer to fig. 5 and 6). In practical use, the first mounting portion 122 can be adaptively set to a structure capable of matching connection according to the connection structure on the scintillation detector 300, so as to ensure the connection stability when the scintillation detector 300 extends into the central hole 121 of the connecting member 120 and the connection between the connecting member 120 and the scintillation detector 300 is realized.

Referring to fig. 1, based on the above-mentioned embodiment, in some embodiments, the inner wall of the central hole 121 may further be provided with a holding portion 127 for holding the scintillation detector 300 extending into the central hole 121. The abutting portion 127 may be a plurality of protruding points or annular protruding bosses protruding from the inner wall of the central hole 121, and after the scintillation detector 300 extends into the central hole 121 and is connected to the first mounting portion 122, a shaft shoulder (refer to fig. 5 and 6) on the scintillation detector 300 may abut against the abutting portion 127, so as to ensure that the scintillation detector 300 has an accurate mounting position and prevent the scintillation detector 300 from excessively extending into the mounting hole 126. When the scintillation detector 300 is butted on the top of the darkroom 200 in a longitudinal installation mode, the butting part 127 can bear the scintillation detector 300, so that the scintillation detector 300 is prevented from directly pressing the connection structure between the scintillation detector 300 and the first installation part 122, and the connection failure caused by the damage of the connection structure is effectively avoided.

Fig. 6 is an exploded view of a part of the detecting module of an embodiment, referring to fig. 6, and referring to fig. 4 and 5 and the above embodiments, the detecting module of this embodiment includes the scintillation detector 300, the darkroom 200 and the connecting component 100 of any of the foregoing embodiments, wherein the scintillation detector 300 has a detecting head 310, the detecting head 310 is provided with a connecting portion 320, and the connecting portion 320 may be of an external thread structure, and is used for being matched and connected with the first mounting portion 122 of the foregoing internal thread structure. The scintillation detector 300 is further provided with a shoulder 330 near one end of the probe 310 for abutting against the abutting portion 127 provided on the connecting member 120. The scintillation detector 300 may optionally include suitable photomultiplier tubes. The darkroom 200 has an inner cavity for receiving the object to be measured, and is provided with a first opening 210 communicating with the inner cavity.

The second mounting portion 123 of the connecting assembly 100 is connected to the darkroom 200, and one end of the connecting member 120 extends into the first opening 210, and the central hole 121 is communicated with the inner cavity. The probe head is inserted into the central hole 121, and the connecting portion is connected to the first mounting portion 122, so that the probe head of the scintillation detector 300 can detect a sample to be detected placed in the darkroom 200; the end surface 124 of the second mounting part 123 faces the dark room 200 and the light shielding pad 110 is clamped between the second mounting part 123 and the dark room 200. Therefore, the scintillation detector 300 realizes the butt joint and the fixed connection with the darkroom 200 through the connecting component 100, and realizes effective shading, thereby ensuring the accuracy of detection.

As a supplementary note, the sample to be tested is carried by the object stage 400, the darkroom 200 is provided with a second opening 220, the object stage 400 can enter and exit the darkroom 200 through the second opening 220, the sample to be tested is placed on the object stage 400 and can enter the darkroom 200 for testing, after the object stage 400 enters the darkroom 200, the end of the object stage 400 can close the second opening 220, and the position for carrying the sample can correspond to the testing head of the scintillation testing device butted to the darkroom 200 for testing. After the test is completed, the sample can be removed from the dark room 200 with the stage 400 to replace the next sample. The detailed structure of the stage 400 is not described herein.

In the embodiment shown in FIG. 5, the side of the dark chamber 200 used to connect the connecting member 100 is a flat surface, which abuts the light blocking pad 110 of the connecting member 100 located in the ring groove 125, thereby blocking light from entering the dark chamber 200 through the first opening 210.

In other embodiments, an annular protrusion (not shown) is disposed on the outer wall of the darkroom 200 around the first opening 210, the protrusion extends into the annular groove 125 and abuts against the light-shielding pad 110, so as to block light from entering the darkroom 200 from the first opening 210, and after the installation, the end surface 124 of the second installation part 123 is attached to the outer wall of the darkroom 200, thereby ensuring the connection stability. In this embodiment, the thickness of the light-shielding pad 110 can be set reasonably, and can be smaller than the depth of the ring groove 125, as long as after the installation, when the end surface 124 of the second installation part 123 is attached to the outer wall of the dark room 200, the protrusion can press the light-shielding pad 110 into the ring groove 125.

Fig. 7 is a schematic diagram of a flicker detection apparatus according to an embodiment, and referring to fig. 7 in combination with fig. 6 and the above-mentioned embodiments, the flicker detection apparatus according to the embodiment includes a housing 500, a stage 400, and a detection module according to any of the foregoing embodiments. The detection module is located inside the chassis 500, the darkroom 200 is further provided with a second opening 220 communicated with the inner cavity, the stage 400 includes a bearing portion 410 and a light shielding portion 420, and the bearing portion 410 is used for bearing a sample to be tested. The housing 500 is provided with a hatch 510 through which the object table 400 can be at least partially accessed from the housing 500, for example, the object table 400 can access the housing 500 through the hatch 510 enabling the carrying portion 410 to be accessed from the housing 500, or the object table 400 can be accessed from the housing 500 as a whole. Through second opening 220, objective table 400 can stretch into the inner chamber with load-bearing part 410, and shades light part 420 and can seal second opening 220, and scintillation detector 300 can choose suitable photomultiplier as required for use, and scintillation detector 300's detecting head is used for carrying out scintillation to the sample that awaits measuring that is located in the inner chamber and detects. From the foregoing, the scintillation detector 300 realizes the butt joint and the fixed connection with the darkroom 200 through the connection assembly 100, and realizes the effective light shielding, thereby ensuring the accuracy of the detection.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art. Furthermore, the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.

Claims (9)

1. A connection assembly for interfacing and interconnecting a scintillation detector to a darkroom, comprising:

the connector is provided with a central hole, a first mounting part is arranged on the inner wall of the central hole and used for connecting the scintillation detector extending into the central hole, and the inner wall of the central hole can surround the outer wall of the scintillation detector; the connecting piece is also provided with a second mounting part, the second mounting part is provided with an end face perpendicular to the axis of the central hole, and the end face is provided with a ring groove circumferentially surrounding along the central hole;

a light blocking pad capable of being received in the ring groove.

2. The connecting assembly of claim 1, wherein the second mounting portion defines a plurality of mounting holes, and the mounting holes are in communication with the annular groove; the connecting assembly passes through the mounting hole through a fastener to connect the darkroom.

3. The connecting assembly of claim 2, wherein the light blocking pad has a plurality of through holes formed therein, each of the through holes being positioned to correspond to the mounting hole, and the fastening member being inserted through the through hole.

4. The connection assembly of claim 1, wherein the light blocking pad is made of a soft material, and a thickness of the light blocking pad in a natural state is not less than a depth of the annular groove.

5. The connection assembly of claim 1, wherein the first mounting portion is an internal thread structure for mating with a scintillation detector having an external thread.

6. The connecting assembly according to any one of claims 1 to 5, wherein the inner wall of the central bore is further provided with a holding portion for holding the scintillation detector extending into the central bore.

7. A detection module, comprising:

the scintillation detector is provided with a detection head, and a connecting part is arranged on the detection head;

the darkroom is provided with an inner cavity for accommodating an object to be detected and a first opening communicated with the inner cavity;

the connection assembly as recited in any one of claims 1 to 6, wherein the second mounting portion is connected to the dark chamber with one end of the connector extending into the first opening, the central bore communicating with the interior cavity; the probe extends into the central hole, and the connecting part is connected with the first mounting part; the terminal surface faces the darkroom and the shading pad is clamped between the second installation part and the darkroom.

8. The detecting module of claim 7, wherein an annular protrusion is disposed around the first opening on an outer wall of the dark room, the protrusion extends into the ring groove and abuts against the light shielding pad, and the end face is attached to the outer wall of the dark room.

9. A flicker detection apparatus, comprising:

a case provided with a bin opening;

the objective table comprises a bearing part and a shading part, wherein the bearing part is used for bearing a sample to be tested;

the detection module of claim 7 or 8, located inside the chassis, wherein the darkroom is further provided with a second opening communicating with the inner cavity, the stage can at least partially enter and exit the chassis through the bin opening, the stage can extend the bearing portion into the inner cavity through the second opening, the light shielding portion can close the second opening, and the probe of the scintillation detector is used for performing scintillation detection on a sample to be detected located in the inner cavity.

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