Testing tool

Abstract

The utility model relates to the technical field of ray detection, and particularly discloses a test tool which is applied to a PET system, and the PET system comprises a carrying table. The testing tool comprises a base, a lifting adjusting mechanism and an elevation angle adjusting mechanism. The base is connected with the carrier; the lifting adjusting mechanism is in sliding connection with the base and can slide in the first dimension direction, the lifting adjusting mechanism comprises a lifting sliding plate and a transmission assembly, and the lifting sliding plate can be driven by the transmission assembly to ascend and descend in the second dimension direction; the elevation angle adjusting mechanism is connected with the lifting sliding plate and comprises an elevation angle plate and an adjusting assembly, the elevation angle plate is rotationally connected with the lifting sliding plate, and the elevation angle plate can be driven by the adjusting assembly to rotate around the third dimension direction. The test tool provided by the utility model has a function of adjusting in multiple directions, and compared with a traditional test tool, the test tool provided by the utility model can be used for positioning the test prosthesis more efficiently, and the test prosthesis has a better positioning effect.

Description

Technical Field

[0001] The present application relates to the field of ray detection technology, and in particular to a testing tool. Background Art

[0002] Positron emission tomography (PET) is a large-scale, cutting-edge nuclear medicine imaging device that injects biologically active radioactive tracers into living bodies and allows them to participate in the body's metabolism. The positrons generated by the decay of the radioactive nuclides then combine with the negative electrons in the tissues to annihilate, radiating two gamma photons with the same energy but moving in opposite directions.

[0003] The detector of the PET system can convert the above-mentioned gamma photon pairs into visible light signals after detecting them and further convert them into electrical signal output. By processing, analyzing and reconstructing the signals, the spatial distribution of the radioactive tracer in the living body can be obtained, thereby visualizing the functional metabolism of various tissues and organs in the living body.

[0004] The PET system mainly includes a PET ring and an examination bed, and the PET ring is provided with a plurality of the above-mentioned detectors. At present, the test link of the PET system mainly uses a test prosthesis. When positioning the test prosthesis, a better positioning effect is that the center line of the test prosthesis and the center line of the PET ring are on the same axis. However, the existing prosthesis test tooling only has the adjustment function in the vertical and left and right directions, and the adjustment function is relatively limited. Utility Model Content

[0005] Based on this, it is necessary to provide a test tool for the above-mentioned problem, which is applied to the PET system, wherein the PET system includes a carrier; the test tool includes:

[0006] A base, connected to the carrier;

[0007] A lifting and adjusting mechanism is slidably connected to the base and can slide along the first dimension. The lifting and adjusting mechanism includes a lifting slide and a transmission assembly. The lifting slide can be lifted and lowered along the second dimension driven by the transmission assembly.

[0008] An elevation angle adjustment mechanism is connected to the lifting slide, and the elevation angle adjustment mechanism includes an elevation angle plate and an adjustment component. The elevation angle plate is rotatably connected to the lifting slide, and the elevation angle plate can rotate around the third dimension under the drive of the adjustment component. The first dimension direction, the second dimension direction and the third dimension direction are three directions in the three-dimensional coordinate system.

[0009] In one embodiment, the base includes a fixed plate, a sliding assembly and a sliding plate, the fixed plate is fixed to the carrier, the sliding assembly is fixed to the fixed plate, the sliding plate is connected to the sliding assembly and can slide along the first dimension following the sliding assembly; the sliding plate is fixedly connected to the lifting and adjusting mechanism.

[0010] In one embodiment, the fixed plate includes a first bottom plate and a second bottom plate, the first bottom plate is located on the bearing surface of the carrier, the sliding assembly is connected to the side of the first bottom plate facing away from the bearing surface, and the second bottom plate is located at other positions in the thickness direction of the carrier, the first bottom plate is fixedly connected to the second bottom plate and clamps at least part of the carrier between the two.

[0011] In one embodiment, the carrier has a hole inside, and the second bottom plate is inserted into the hole.

[0012] In one embodiment, the sliding assembly includes a sliding rail and a sliding block disposed on the sliding rail, and the sliding plate is fixedly connected to the sliding block.

[0013] In one embodiment, the base further includes a locking member, which is connected to the sliding plate and is used to limit the sliding of the sliding plate.

[0014] In one embodiment, the lifting and adjusting mechanism further includes a column, the column is vertically connected to the sliding plate, and the transmission assembly is fixedly connected to the column.

[0015] In one of the embodiments, the elevation plate is rotationally connected to the lifting slide plate via a first rotating shaft, and the first rotating shaft extends along the third dimension.

[0016] In one of the embodiments, the elevation angle adjustment mechanism further includes a rotating plate, the elevation angle plate is fixedly connected to the rotating plate, the rotating plate is rotationally connected to the lifting slide plate via the first rotating shaft, and the first rotating shaft extends along the third dimension.

[0017] In one embodiment, the adjusting assembly is fixedly connected to the lifting slide plate, and can drive the rotating plate to rotate around the first rotating axis.

[0018] In one of the embodiments, the elevation plate is further connected to a displacement component, and the displacement component can drive the elevation plate to displace along the third dimension.

[0019] In one embodiment, the displacement assembly includes a first fixing seat, a second fixing seat and a first adjusting member;

[0020] The first fixed seat is fixedly connected to the rotating plate, the second fixed seat is fixedly connected to the elevation plate, the first adjusting member is movably connected to the first fixed seat, the first adjusting member can be displaced in a third dimension relative to the first fixed seat, and the first adjusting member is fixedly connected to the second fixed seat.

[0021] In one embodiment, the test fixture also includes a deflection mechanism, which includes a deflection plate and a second adjusting member, wherein the deflection plate is rotationally connected to the elevation plate, and the second adjusting member is fixed to the elevation plate and can drive the deflection plate to rotate around the second dimension.

[0022] The test fixture provided by the present application has a lifting and adjusting mechanism that is slidably connected to the base, that is, the overall structure composed of the lifting and adjusting mechanism and the elevation adjustment mechanism connected thereto can slide relative to the base along the first dimension; at the same time, in the lifting and adjusting mechanism, the lifting slide can be lifted and lowered along the second dimension driven by the transmission component, that is, the elevation adjustment mechanism connected to the lifting slide will also be lifted and lowered along the second dimension, and in addition, the elevation plate in the elevation adjustment mechanism can rotate around the third dimension driven by the adjustment component. Therefore, the test fixture of the present application has the function of adjusting in multiple directions. Compared with the traditional test fixture, the test fixture of the present application can be used to position the test prosthesis more efficiently and make the test prosthesis have a better positioning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the structure of a test tool provided in one embodiment of the present application;

[0024] Figure 2 A schematic diagram of the three-dimensional structure of a test tool provided in one embodiment of the present application from another perspective;

[0025] Figure 3 A schematic diagram of the structure of a base of a test tool provided in an embodiment of the present application;

[0026] Figure 4 A schematic diagram of the structure of a lifting and adjusting mechanism of a test tool provided in an embodiment of the present application;

[0027] Figure 5 A schematic structural diagram of an elevation adjustment mechanism for a test fixture provided in one embodiment of the present application.

[0028] Description of reference numerals:

[0029] 100, stage; 110, hole position;

[0030] 200, PET ring;

[0031] 300, base; 310, fixing plate; 311, first bottom plate; 312, second bottom plate; 320, sliding assembly; 321, slide rail; 322, slider; 323, stopper; 330, sliding plate; 340, locking member;

[0032] 400, lifting adjustment mechanism; 410, lifting slide plate; 420, transmission assembly; 421, lifting guide rail; 422, lifting screw rod; 423, lifting adjustment handle; 430, column;

[0033] 500, elevation adjustment mechanism; 510, elevation plate; 520, adjustment assembly; 521, elevation adjustment handle; 522, elevation adjustment rod; 523, first adjustment rod fixing seat; 530, first rotating shaft; 540, rotating plate; 550, displacement assembly; 551, first fixing seat; 552, second fixing seat; 553, first adjustment member;

[0034] 600, deflection mechanism; 610, deflection plate; 620, second adjustment member; 621, first adjustment rod; 622, second adjustment rod; 623, second adjustment rod fixing seat; 630, second rotating shaft. DETAILED DESCRIPTION

[0035] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are given in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to understand the disclosure of the present application more thoroughly and comprehensively.

[0036] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0037] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0039] Some preferred embodiments of the present application are described below with reference to the accompanying drawings. It should be noted that the following description is for illustrative purposes and is not intended to limit the scope of protection of the present application.

[0040] Reference Figure 1 In one embodiment, a test fixture is provided, which can be applied to a PET system, wherein the PET system includes a carrier and a PET ring, and a plurality of detectors are arranged on the PET ring. The test fixture provided in this embodiment is used to adjust the position of the test dummy on the carrier when testing the PET system.

[0041] Reference Figure 1 The test fixture provided in this embodiment includes a base 300, a lifting adjustment mechanism 400 and an elevation adjustment mechanism 500.

[0042] The base 300 is connected to the carrier 100. The lifting adjustment mechanism 400 is slidably connected to the base 300 and can slide along the first dimension. The lifting adjustment mechanism 400 includes a lifting slide 410 and a transmission assembly 420. The lifting slide 410 can be lifted and lowered along the second dimension driven by the transmission assembly 420. The elevation adjustment mechanism 500 is connected to the lifting slide 410. The elevation adjustment mechanism 500 includes an elevation plate 510 and an adjustment assembly 520. The elevation plate 510 is rotatably connected to the lifting slide 410. The elevation plate 510 can rotate around the third dimension driven by the adjustment assembly 520. The first dimension, the second dimension and the third dimension are three directions in the three-dimensional coordinate system.

[0043] In the test fixture provided by the above embodiment, the lifting adjustment mechanism 400 is slidably connected to the base 300, that is, the overall structure composed of the lifting adjustment mechanism 400 and the elevation adjustment mechanism 500 connected thereto can slide relative to the base 300 along the first dimension; at the same time, in the lifting adjustment mechanism 400, the lifting slide 410 can be lifted and lowered along the second dimension under the drive of the transmission component 420, that is, the elevation adjustment mechanism 500 connected to the lifting slide 410 will also be lifted and lowered along the second dimension. In addition, the elevation plate 510 in the elevation adjustment mechanism 500 can rotate around the third dimension under the drive of the adjustment component 520. Therefore, the test fixture of the present application has the function of adjusting in multiple directions. Compared with the traditional test fixture, the test fixture of the present application can be used to position the test dummy more efficiently and make the test dummy have a better positioning effect.

[0044] Among them, refer to Figure 2 , the three-dimensional coordinate system includes an X-axis, a Y-axis, and a Z-axis, that is, corresponding to three directions, namely, the X-axis direction, the Y-axis direction, and the Z-axis direction. In this embodiment, the first dimension direction may be the Z-axis direction, that is, the axial direction of the stage 100, the second dimension direction may be the Y-axis direction, that is, the thickness direction of the stage 100, and the third dimension direction may be the X-axis direction, which is perpendicular to both the Y-axis direction and the Z-axis direction.

[0045] That is, the lifting adjustment mechanism 400 and the elevation adjustment mechanism 500 connected thereto can slide as a whole along the Z-axis direction, that is, the axial direction of the platform 100, thereby adjusting the front and rear position of the prosthesis on the platform 100. At the same time, the lifting slide plate 410 in the lifting adjustment mechanism 400 can be lifted and lowered along the Y-axis direction, that is, the thickness direction of the platform 100, driven by the transmission component 420, thereby adjusting the placement height of the prosthesis on the platform 100; the elevation plate 510 in the elevation adjustment mechanism 500 can also rotate around the X-axis driven by the adjustment component 520, that is, adjust the elevation angle of the prosthesis. Through the above-mentioned test fixture, the placement of the prosthesis can be adjusted from at least three degrees of freedom.

[0046] In one of the embodiments of the present application, referring to Figure 3 The base 300 includes a fixed plate 310, a sliding assembly 320 and a sliding plate 330. The fixed plate 310 is fixed to the carrier 100, the sliding assembly 320 is fixed to the fixed plate 310, and the sliding plate 330 is connected to the sliding assembly 320 and can slide along the first dimension direction with the sliding assembly 320; the sliding plate 330 is fixedly connected to the lifting adjustment mechanism 400.

[0047] Specifically, the fixed plate 310 and the carrier 100 are fixedly connected, and the relative positions of the two remain unchanged. The sliding assembly 320 is fixedly connected to the fixed plate 310 to provide a sliding function. The sliding plate 330 is connected to the sliding assembly 320, that is, the sliding plate 330 can slide under the drive of the sliding assembly 320. The lifting adjustment mechanism 400 is connected to the sliding plate 330, and the sliding of the sliding plate 330 can drive the lifting adjustment mechanism 400 to slide synchronously.

[0048] In this embodiment, the fixed plate 310 includes a first bottom plate 311 and a second bottom plate 312. The first bottom plate 311 is located on the bearing surface of the carrier 100. The sliding assembly 320 is connected to the side of the first bottom plate 311 facing away from the bearing surface. The second bottom plate 312 is located at other positions in the thickness direction of the carrier 100. The first bottom plate 311 and the second bottom plate 312 are fixedly connected and clamp at least part of the carrier 100 therebetween.

[0049] That is, the first bottom plate 311 and the second bottom plate 312 can play a clamping role on the carrier 100 to achieve a tight connection between the carrier 100 and the fixing plate 310. Specifically, the first bottom plate 311 can be placed on the bearing surface of the carrier 100, and the second bottom plate 312 can be located at other positions in the thickness direction of the carrier 100, for example, a side surface of the carrier 100 facing away from the bearing surface or any position inside the carrier 100. The first bottom plate 311 and the second bottom plate 312 can be fixedly connected outside the carrier 100, so that the first bottom plate 311 and the second bottom plate 312 clamp at least part of the carrier 100 therebetween, thereby clamping and fixing the carrier 100. When the second bottom plate 312 is located on the side surface of the carrier 100 facing away from the supporting surface, the first bottom plate 311 and the second bottom plate 312 are distributed on the upper and lower sides of the carrier 100, clamping the entire carrier 100 therebetween; when the second bottom plate 312 is located inside the carrier 100, the first bottom plate 311 and the second bottom plate 312 clamp part of the carrier 100 therebetween.

[0050] The connection method between the first bottom plate 311 and the second bottom plate 312 can be selected according to actual needs, such as a fixed connection method such as a screw connection method, and no specific limitation is made here.

[0051] As an optional method in this embodiment, refer to Figure 3 , the second bottom plate 312 is disposed inside the carrier 100. Specifically, the carrier 100 has a hole 110 inside, and the second bottom plate 312 is inserted into the hole 110. That is, during actual assembly, the second bottom plate 312 can be inserted into the hole 110 inside the carrier 100, the first bottom plate 311 is placed on the bearing surface of the carrier 100, and then the first bottom plate 311 and the second bottom plate 312 are fixedly connected.

[0052] The first bottom plate 311 and / or the second bottom plate 312 may have an extension portion extending toward each other, so as to realize the connection between the first bottom plate 311 and the second bottom plate 312. For example, the second bottom plate 312 may be configured to be L-shaped, one side of the L-shape is inserted into the inside of the carrier 100, and the other side of the L-shape is extended toward the first bottom plate 311 as an extension portion of the second bottom plate 312, so as to realize the connection with the first bottom plate 311 at the end of the extension portion.

[0053] In this embodiment, the sliding assembly 320 includes a slide rail 321 and a slider 322 disposed on the slide rail 321, and a sliding plate 330 is fixedly connected to the slider 322. The slide rail 321 provides a sliding track for the slider 322, and the track direction of the slide rail 321 is the axis direction of the carrier 100. The slider 322 can slide along the slide rail 321, and the sliding plate 330 is fixedly connected to the slider 322, that is, the sliding plate 330 can slide synchronously with the slider 322.

[0054] In one embodiment of the present application, the base 300 further includes a locking member 340, which is connected to the sliding plate 330 and is used to limit the sliding of the sliding plate 330. When the lifting adjustment mechanism 400 on the sliding plate 330 moves to a desired position along the Z-axis direction, the position of the sliding plate 330 can be locked by the locking member 340, thereby preventing the sliding plate 330 from driving the lifting adjustment mechanism 400 to continue to move.

[0055] In addition, a limiting member 323 is provided at the end of the slide rail 321 , and the slider 322 can be limited by the limiting member 323 so that the slider 322 slides within the track range defined by the limiting block.

[0056] Reference Figure 4 In this embodiment, the transmission assembly 420 in the lifting adjustment mechanism 400 may include a lifting rail 421 and a lifting screw 422, and both the lifting rail 421 and the lifting screw 422 extend toward the Y-axis direction. The lifting slide 410 is connected to the lifting rail 421 and the lifting screw 422 at the same time, wherein a lifting adjustment handle 423 is connected to the top of the lifting screw 422, and the lifting screw 422 can be controlled to rise or fall through the lifting adjustment handle 423, thereby causing the lifting slide 410 to rise or fall along the lifting rail 421.

[0057] In addition, the lifting and adjusting mechanism 400 may further include a column 430, the column 430 is vertically connected to the sliding plate 330, and the transmission assembly 420 is fixedly connected to the column 430. The column 430 provides support for the entire lifting and adjusting mechanism 400, and realizes a stable connection between the entire lifting and adjusting mechanism 400 and the sliding plate 330. Specifically, the lifting guide rail 421 may be fixedly connected to the column 430.

[0058] In one embodiment of the present application, the elevation plate 510 is rotatably connected to the lifting plate 410 via a first rotating shaft 530, and the first rotating shaft 530 extends along the third dimension. In actual application, when the lifting plate 410 is lifted and lowered along the Y-axis direction, the elevation plate 510 will also be lifted and lowered along the Y-axis direction. At the same time, the elevation plate 510 is also rotatably connected to the lifting plate 410 via the first rotating shaft 530, and the first rotating shaft 530 extends along the X-axis direction. Therefore, the elevation plate 510 can rotate around the X-axis direction relative to the lifting plate 410 to adjust the elevation angle of the elevation plate 510.

[0059] In another optional embodiment of the present application, refer to Figure 5 , the elevation plate 510 can be connected to the lifting plate 410 through the rotating plate 540. Specifically, the elevation plate 510 can be fixedly connected to the rotating plate 540. The rotating plate 540 is rotatably connected to the lifting plate 410 through the first rotating shaft 530. The first rotating shaft 530 extends along the third dimension. Since the relative position between the elevation plate 510 and the rotating plate 540 remains unchanged, when the rotating plate 540 rotates around the X-axis direction, the rotating plate 540 will drive the elevation plate 510 to rotate around the X-axis direction.

[0060] The adjustment assembly 520 in the elevation adjustment mechanism 500 can be fixedly connected to the lifting slide 410, and can drive the rotating plate 540 to rotate around the first rotation axis 530. The adjustment assembly 520 can include an elevation adjustment handle 521, an elevation adjustment rod 522, and a first adjustment rod fixing seat 523. The first adjustment rod fixing seat 523 is fixed on the lifting slide 410. The elevation adjustment rod 522 is telescopically connected to the first adjustment rod fixing seat 523 and is arranged directly opposite to the rotating plate 540. The elevation adjustment handle 521 is connected to the elevation adjustment rod 522. The telescopic amount of the elevation adjustment rod 522 can be adjusted by adjusting the elevation adjustment handle 521. The elevation adjustment rod 522 can push the rotating plate 540 toward the direction of the rotating plate 540, thereby rotating the rotating plate 540 around the X-axis direction.

[0061] In one of the embodiments of the present application, referring to Figure 5 The elevation plate 510 is also connected to a displacement assembly 550, which can drive the elevation plate 510 to move in the third dimension. That is, in addition to being able to control the elevation plate 510 to move in the Z-axis direction, to rise and fall in the Y-axis direction, and to rotate around the X-axis direction, in this embodiment, the elevation plate 510 can also be driven to move in the X-axis direction by the displacement assembly 550, thereby increasing the degree of freedom of adjustment of the test fixture.

[0062] In this embodiment, the displacement assembly 550 may include a first fixed seat 551, a second fixed seat 552, and a first adjusting member 553. The first fixed seat 551 is fixedly connected to the rotating plate 540, the second fixed seat 552 is fixedly connected to the elevation plate 510, the first adjusting member 553 is movably connected to the first fixed seat 551, the first adjusting member 553 can be displaced in the third dimension relative to the first fixed seat 551, and the first adjusting member 553 is fixedly connected to the second fixed seat 552.

[0063] Since the first adjusting member 553 is movably connected to the first fixed seat 551 and can move relative to the first fixed seat 551 along the X-axis direction, and the first adjusting member 553 is fixedly connected to the second fixed seat 552, the relative position relationship between the two remains unchanged. Therefore, the first adjusting member 553 can drive the second fixed seat 552 and the elevation plate 510 fixedly connected to the second fixed seat 552 to move synchronously along the X-axis direction to realize the position adjustment function of the test tooling in the X-axis direction.

[0064] The first adjusting member 553 may be a shoulder bearing.

[0065] In one of the embodiments of the present application, referring to Figure 5 The test fixture provided in this embodiment also includes a deflection mechanism 600, which includes a deflection plate 610 and a second adjustment member 620. The deflection plate 610 is rotationally connected to the elevation plate 510. The second adjustment member 620 is fixed to the elevation plate 510 and can drive the deflection plate 610 to rotate around the second dimension.

[0066] That is, the elevation plate 510 is also rotatably connected to the deflection plate 610 , and the deflection plate 610 can rotate around the Y-axis direction under the adjustment of the second adjustment member 620 , thereby further increasing the adjustment freedom of the test fixture.

[0067] The deflection plate 610 may be rotatably connected to the elevation plate 510 via a second rotating shaft 630. The second adjusting member 620 may include a first adjusting rod 621 and a second adjusting rod 622, the first adjusting rod 621 and the second adjusting rod 622 are respectively connected to corresponding second adjusting rod fixing seats 623, and the second adjusting rod fixing seats 623 are fixed to the elevation plate 510. The deflection plate 610 may be rotated around the Y axis through the cooperation between the first adjusting rod 621 and the second adjusting rod 622.

[0068] In this embodiment, the first adjustment rod 621 and the second adjustment rod 622 are distributed on both sides of the elevation plate 510 along the X-axis direction, and the first adjustment rod 621 and the second adjustment rod 622 are both arranged opposite to the deflection plate 610. A threaded hole may be arranged in the second adjustment rod fixing seat 623, and the first adjustment rod 621 and the second adjustment rod 622 may be threaded rods. In the actual adjustment process, the extension and contraction amount of the threaded rods on both sides in the threaded holes may be adjusted to adjust the thrust of the threaded rods on both sides on the deflection plate 610, thereby realizing the deflection of the deflection plate 610. For example, the amount of the threaded rod on the left side of the elevation plate 510 extending toward the deflection plate 610 is increased, and the amount of the threaded rod on the right side of the elevation plate 510 extending toward the deflection plate 610 is reduced. At this time, the deflection plate 610 will deflect toward the right side of the elevation plate 510; the amount of the threaded rod on the left side of the elevation plate 510 extending toward the deflection plate 610 is reduced, and the amount of the threaded rod on the right side of the elevation plate 510 extending toward the deflection plate 610 is increased. At this time, the deflection plate 610 will deflect toward the left side of the elevation plate 510.

[0069] That is to say, the test tooling provided in this embodiment can realize the positioning adjustment of five degrees of freedom, namely, the X-axis direction, the Y-axis direction, the Z-axis direction, the X-axis circumferential direction (RX direction), and the Y-axis circumferential direction (RY direction), thereby effectively realizing the efficient positioning of the test prosthesis and making the test prosthesis have a better positioning effect.

[0070] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0071] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent. It should be noted that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A test tool, characterized in that: Applied to a PET system, the PET system includes a carrier; the test tooling includes: A base, connected to the carrier; A lifting and adjusting mechanism is slidably connected to the base and can slide along the first dimension. The lifting and adjusting mechanism includes a lifting slide and a transmission assembly. The lifting slide can be lifted and lowered along the second dimension driven by the transmission assembly. An elevation angle adjustment mechanism is connected to the lifting slide, and the elevation angle adjustment mechanism includes an elevation angle plate and an adjustment component. The elevation angle plate is rotatably connected to the lifting slide, and the elevation angle plate can rotate around the third dimension under the drive of the adjustment component. The first dimension direction, the second dimension direction and the third dimension direction are three directions in the three-dimensional coordinate system.

2. The test tool according to claim 1, characterized in that: The base includes a fixed plate, a sliding assembly and a sliding plate, wherein the fixed plate is fixed to the carrier, the sliding assembly is fixed to the fixed plate, the sliding plate is connected to the sliding assembly and can slide along the first dimension following the sliding assembly; the sliding plate is fixedly connected to the lifting and adjusting mechanism.

3. The test tool according to claim 2, characterized in that: The fixed plate includes a first bottom plate and a second bottom plate, the first bottom plate is located on the bearing surface of the carrier, the sliding assembly is connected to the side of the first bottom plate facing away from the bearing surface, and the second bottom plate is located at other positions in the thickness direction of the carrier, the first bottom plate is fixedly connected to the second bottom plate and clamps at least part of the carrier between the two.

4. The test fixture according to claim 3, characterized in that: The carrier has a hole inside, and the second bottom plate is inserted into the hole.

5. The test tool according to claim 3, characterized in that: The sliding assembly comprises a sliding rail and a sliding block arranged on the sliding rail, and the sliding plate is fixedly connected to the sliding block.

6. The test tool according to claim 2, characterized in that: The base further comprises a locking member, wherein the locking member is connected to the sliding plate and is used for limiting the sliding of the sliding plate.

7. The test tool according to claim 2, characterized in that: The lifting and lowering adjustment mechanism further comprises a column, wherein the column is vertically connected to the sliding plate, and the transmission assembly is fixedly connected to the column.

8. The test tool according to claim 1, characterized in that: The elevation plate is rotatably connected to the lifting slide plate via a first rotating shaft, and the first rotating shaft extends along the third dimension.

9. The test tool according to claim 1, characterized in that: The elevation angle adjustment mechanism also includes a rotating plate, the elevation angle plate is fixedly connected to the rotating plate, and the rotating plate is rotationally connected to the lifting slide plate via a first rotating shaft, and the first rotating shaft extends along the third dimension.

10. The test fixture according to claim 9, characterized in that: The adjusting assembly is fixedly connected to the lifting slide plate, and can drive the rotating plate to rotate around the first rotating shaft.

11. The test fixture according to claim 9, characterized in that: The elevation plate is also connected to a displacement component, and the displacement component can drive the elevation plate to move along the third dimension.

12. The test fixture according to claim 11, characterized in that: The displacement assembly includes a first fixing seat, a second fixing seat and a first adjusting member; The first fixed seat is fixedly connected to the rotating plate, the second fixed seat is fixedly connected to the elevation plate, the first adjusting member is movably connected to the first fixed seat, the first adjusting member can be displaced in a third dimension relative to the first fixed seat, and the first adjusting member is fixedly connected to the second fixed seat.

13. The test fixture according to claim 1, characterized in that: The test fixture also includes a deflection mechanism, which includes a deflection plate and a second adjustment member. The deflection plate is rotationally connected to the elevation plate. The second adjustment member is fixed to the elevation plate and can drive the deflection plate to rotate around the second dimensional direction.

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