CN111735810A - An electrochemiluminescence instrument for the detection of tumor radiotherapy reference markers - Google Patents

Abstract

The invention belongs to the field of tumor marker detection, in particular to an electrochemiluminescence instrument for tumor radiotherapy reference marker detection. Aiming at the problems that the interface of the existing electrochemiluminescence instrument is prone to poor contact and the height cannot be adjusted, the following scheme is proposed: It includes the electrochemiluminescence meter body and the interface arranged on the electrochemiluminescence meter body, the electrochemiluminescence meter body is provided with a movable block, and the movable block is provided with a damping mechanism, and the movable block is provided with a first Through holes, the damping mechanism includes a support column and a pressing plate, a rubber gasket is arranged between the pressing plate and the movable block, and a bottom fixing plate is fixedly installed at the bottom of the electrochemiluminescence instrument body, and the present invention is effective The situation of poor contact at the interface is avoided, and the height of the electrochemiluminescence instrument can be adjusted, which facilitates people's operation, and at the same time realizes the ease of movement of the electrochemiluminescence instrument, high safety and strong practicability.

Description

An electrochemiluminescence instrument for the detection of tumor radiotherapy reference markers

technical field

The invention relates to the technical field of tumor marker detection, in particular to an electrochemiluminescence instrument for detecting tumor radiotherapy reference markers.

Background technique

The biochemical properties of tumor cells and their metabolism are abnormal, so there are substances that are qualitatively or quantitatively changed in the body fluids, excretions and tissues of tumor patients. These are tumor markers. The discovery of tumors, the screening of high-risk groups of tumors, the differential diagnosis of benign and malignant tumors, the judgment of the degree of tumor development, the observation and evaluation of tumor treatment effects, and the prediction of tumor recurrence, etc. The electrochemiluminescence instrument integrates a variety of technologies, using immunology, streptavidin bio-coating technology and electrochemiluminescence labeling technology to connect the sample to be tested with antibody-coated paramagnetic particles and luminescence The reagent-labeled antibody is added to the cuvette and incubated together to form a magnetic microbead-coated antibody-antigen-luminescent reagent-labeled antibody complex. The complex is drawn into the flow chamber and rinsed with TPA buffer. When the magnetic particles flow through the electrode On the surface, it is attracted by the magnet installed under the electrode, and the free luminescent agent-labeled antibody is washed away. At the same time, a voltage is applied to the electrode to start the electrochemiluminescence reaction, so that the luminescent reagent label and TPA transfer electrons on the electrode surface. produces electrochemiluminescence.

The current electrochemiluminescence instrument still has some shortcomings in actual use: first, the interface on the electrochemiluminescence instrument is generally directly exposed to the air. Due to the existence of suspended impurities and moisture in the air, the long-term exposure of the interface is easy This leads to the poor contact of the interface during use; secondly, the current electrochemiluminescence instrument is directly placed on the table, but due to the different heights of the staff operating the electrochemiluminescence instrument, for taller operators It is necessary to bend over to operate, and for short operators, foot pads are required, which brings inconvenience to people's actual operation. Therefore, we propose an electrochemiluminescence instrument for the detection of tumor radiotherapy reference markers.

SUMMARY OF THE INVENTION

The electrochemiluminescence instrument for tumor radiotherapy reference marker detection proposed by the present invention solves the problems that the interface of the current electrochemiluminescence instrument is prone to poor contact and cannot be adjusted in height.

In order to achieve the above object, the present invention adopts the following technical solutions:

An electrochemiluminescence instrument for tumor radiotherapy reference marker detection, comprising an electrochemiluminescence instrument body and an interface arranged on the electrochemiluminescence instrument body, the electrochemiluminescence instrument body is provided with a movable baffle, and the movable baffle is A damping mechanism is provided, the movable baffle is provided with a first through hole, the damping mechanism includes a support column and a pressing plate, and the pressing plate is fixedly installed on the electrochemiluminescence instrument body through a first screw, and the first through-hole is provided. A screw penetrates the support column, a rubber washer is arranged between the pressing plate and the movable baffle, a bottom fixing plate is fixedly installed on the bottom of the electrochemiluminescence instrument body, and a push rod motor is arranged at the bottom of the bottom fixing plate, The bottom of the push rod motor is fixedly installed with a bottom support plate, and the output shaft of the push rod motor is fixedly connected to the bottom fixed plate. Four telescopic shafts are arranged between the bottom fixed plate and the bottom support plate, and the telescopic shafts A limiting mechanism is provided, four second through holes are opened on the bottom support plate, and a shock absorber runs through the inside of the second through holes, an annular plate is installed at the bottom of the shock absorber, and the annular plate is fixedly installed On the bottom support plate, a universal wheel is installed at the bottom of the shock-absorbing shaft of the shock absorber, a foot switch is fixedly installed on the bottom support plate, and the movable shaft end of the telescopic shaft is fixedly connected to the bottom fixing plate , and the bottom of the telescopic shaft is fixedly connected with the bottom support plate.

Preferably, the side of the movable shaft of the telescopic shaft is provided with a bar-shaped groove, and the inner surface of the bar-shaped groove is provided with a plurality of limit slots, the limit mechanism includes a first fixing block and a second fixing block, and the third Two connecting rods are fixedly connected between a fixed block and a second fixed block, the first fixed block is fixedly installed on the telescopic shaft, and a third through hole is opened on the first fixed block, and the second fixed block A fourth through hole is opened on it, the third through hole and the inside of the fourth through hole have the same limit rod, and the limit rod is fixed with a first annular sheet and a second annular sheet. A compression spring is arranged between the fixing block and the second fixing block, one end of the limit rod is fixed with a rectangular sheet, and one end of the rectangular sheet is fixed with a rectangular block, and one end of the rectangular block is provided with several limiting protrusions, And the limit protrusion and the limit slot are matched and arranged, the cross-sectional shape of the limit protrusion is a right triangle, the limit rod is sleeved with a sleeve, and the outer side of the sleeve is fixed with a positioning device. The other end of the limiting rod is fixedly installed with a circular sheet by means of a second screw, one end of the second fixing block is fixed with a positioning plate, and one end of the positioning plate is provided with a positioning groove.

Preferably, the cross-sectional diameter of the support column is smaller than the diameter of the first through hole, and the support column penetrates through the first through hole.

Preferably, a plurality of anti-slip protruding strips are provided on the outer surface of one side of the movable baffle away from the electrochemiluminescence meter body, and the several anti-slip protruding strips are parallel to each other.

Preferably, the sleeve is located between the second annular sheet and the circular sheet, and the distance between the second annular sheet and the circular sheet is greater than the length of the sleeve.

Preferably, the compression spring is sleeved on the limit rod, and both ends of the compression spring are in contact with the first annular sheet and the second fixed block, respectively.

Preferably, the input end of the push rod motor is electrically connected to the output end of the foot switch, and the input end of the foot switch is electrically connected to an external power source.

Preferably, two rectangular columns are fixedly installed on the outer surfaces of the front and rear ends of the bottom support plate, and a threaded rod is threadedly connected to the rectangular column, a foot washer is installed on the bottom of the threaded rod, and the top of the threaded rod is A transverse rod is welded, a third annular sheet is welded on the threaded rod, and a handle rod is welded at one end of the transverse rod.

Compared with the prior art, the beneficial effects of the present invention are:

1. In the present invention, by setting a movable baffle, a damping mechanism, a first through hole, a support column, a pressing plate, a first screw and a rubber washer, and using a rotatable movable baffle to block the interface, the interface can be effectively avoided. In the case of poor contact, the actual use effect is good.

2. In the present invention, the bottom fixed plate, the push rod motor, the bottom support plate, the telescopic shaft, the limit mechanism, the foot switch, the strip slot, the limit slot, the first fixed block, the second fixed block, the connection Rod, third through hole, fourth through hole, limit rod, first annular piece, compression spring, rectangular piece, rectangular block, limit protrusion, second annular piece, sleeve, positioning block, circular piece, The second screw, the positioning plate and the positioning groove can adjust the height of the electrochemiluminescence instrument through the push rod motor, so that operators of different heights can operate the electrochemiluminescence instrument in the most comfortable posture. The position mechanism can offset the torque force when the electrochemiluminescence instrument is tilted, thereby improving the use safety of the electrochemiluminescence instrument.

3. In the present invention, by arranging the second through hole, the shock absorber, the annular plate and the universal wheel, people can move the electrochemiluminescence instrument more conveniently, and the convenience of use of the electrochemiluminescence instrument is improved.

4. In the present invention, the contact area between the bottom support plate and the ground is increased by arranging a rectangular column, a threaded rod, a foot washer, a horizontal rod, a third annular sheet and a handle rod, which improves the use of the electrochemiluminescence meter. stability.

To sum up, the present invention effectively avoids the poor contact of the interface, and can adjust the height of the electrochemiluminescence instrument, which is convenient for people to operate, and at the same time realizes the convenience of movement of the electrochemiluminescence instrument with high safety. , strong practicability.

Description of drawings

FIG. 1 is a schematic diagram of the overall structure of an electrochemiluminescence instrument for tumor radiotherapy reference marker detection proposed by the present invention;

Fig. 2 is a side partial cross-sectional view of a movable block of an electrochemiluminescence instrument for tumor radiotherapy reference marker detection proposed by the present invention;

FIG. 3 is an enlarged cross-sectional view of the electrochemiluminescence instrument for detecting reference markers in tumor radiotherapy proposed by the present invention in FIG. 1 ;

4 is a top view of a positioning plate of an electrochemiluminescence meter for tumor radiotherapy reference marker detection proposed by the present invention;

FIG. 5 is a structural diagram of a midsole support plate in Embodiment 2 of an electrochemiluminescence instrument for tumor radiotherapy reference marker detection proposed by the present invention.

In the figure: 1 Electrochemiluminescence instrument body, 2 interface, 3 movable baffle, 4 damping mechanism, 5 first through hole, 6 support column, 7 pressing plate, 8 first screw, 9 rubber gasket, 10 bottom fixing plate , 11 push rod motor, 12 bottom support plate, 13 telescopic shaft, 14 limit mechanism, 15 second through hole, 16 shock absorber, 17 ring plate, 18 universal wheel, 19 foot switch, 20 bar groove, 21 Limit slot, 22 First fixing block, 23 Second fixing block, 24 Connecting rod, 25 Third through hole, 26 Fourth through hole, 27 Limiting rod, 28 First ring plate, 29 Compression spring, 30 Rectangular sheet, 31 rectangular block, 32 limit protrusion, 33 second annular sheet, 34 sleeve, 35 positioning block, 36 circular sheet, 37 second screw, 38 positioning plate, 39 positioning groove, 40 rectangular column, 41 Threaded rod, 42 foot washer, 43 cross rod, 44 third annular sheet, 45 handle rod.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments.

Example 1:

1-4, an electrochemiluminescence meter for tumor radiotherapy reference marker detection includes an electrochemiluminescence meter body 1 and an interface 2 arranged on the electrochemiluminescence meter body 1, and the electrochemiluminescence meter body 1 is provided with The movable baffle 3 is provided with a damping mechanism 4, and the movable baffle 3 is provided with a first through hole 5. The damping mechanism 4 includes a support column 6 and a pressing plate 7, and the pressing plate 7 passes through the first through hole 5. A screw 8 is fixedly installed on the electrochemiluminescence meter body 1, the first screw 8 penetrates the support column 6, a rubber gasket 9 is arranged between the pressing plate 7 and the movable block 3, and the bottom of the electrochemiluminescence meter body 1 is fixedly installed There is a bottom fixed plate 10, and the bottom of the bottom fixed plate 10 is provided with a push rod motor 11, the bottom of the push rod motor 11 is fixedly installed with a bottom support plate 12, and the output shaft of the push rod motor 11 is fixedly connected with the bottom fixed plate 10, Four telescopic shafts 13 are arranged between the bottom fixing plate 10 and the bottom supporting plate 12 , and a limiting mechanism 14 is arranged on the telescopic shafts 13 , and four second through holes 15 are opened on the bottom supporting plate 12 , and the second through holes A shock absorber 16 runs through the inside of the shock absorber 15, an annular plate 17 is installed at the bottom of the shock absorber 16, and the annular plate 17 is fixedly installed on the bottom support plate 12, and a universal wheel 18 is installed at the bottom of the shock absorber shaft of the shock absorber 16. The foot switch 19 is fixedly installed on the bottom support plate 12 , the movable shaft end of the telescopic shaft 13 is fixedly connected with the bottom fixed plate 10 , and the bottom of the telescopic shaft 13 is fixedly connected with the bottom support plate 12 .

The side of the movable shaft of the telescopic shaft 13 is provided with a bar-shaped groove 20, and the inner surface of the bar-shaped groove 20 is provided with a plurality of limit slots 21. The limit mechanism 14 includes a first fixing block 22 and a second fixing block 23, and the third Two connecting rods 24 are fixedly connected between a fixed block 22 and a second fixed block 23 , the first fixed block 22 is fixedly installed on the telescopic shaft 13 , and a third through hole 25 is opened on the first fixed block 22 . A fourth through hole 26 is formed on the two fixing blocks 23 , the third through hole 25 and the fourth through hole 26 have the same limit rod 27 penetrating through the interior, and the limit rod 27 is fixed with the first annular plate 28 and the Two annular sheets 33, a compression spring 29 is arranged between the first fixing block 22 and the second fixing block 23, a rectangular sheet 30 is fixed at one end of the limit rod 27, and a rectangular block 31 is fixed at one end of the rectangular sheet 30. The rectangular block One end of the 31 is provided with several limit protrusions 32, and the limit protrusions 32 are matched with the limit card slots 21. The cross-sectional shape of the limit protrusions 32 is a right triangle, and the limit rod 27 is sleeved with a The sleeve 34 is fixed with a positioning block 35 on the outer side of the sleeve 34, the other end of the limit rod 27 is fixedly installed with a circular sheet 36 through a second screw 37, and one end of the second fixing block 23 is fixed with a positioning plate 38, And one end of the positioning plate 38 is provided with a positioning groove 39, the cross-sectional diameter of the support column 6 is smaller than the diameter of the first through hole 5, and the support column 6 penetrates the first through hole 5, and the movable baffle 3 is far away from the electrochemiluminescence meter body 1. The outer surface of one side is provided with a number of anti-slip protruding strips, the several anti-slip protruding strips are parallel to each other, the sleeve 34 is located between the second annular sheet 33 and the circular sheet 36, and the second annular sheet 33 and the circular sheet 36 The distance is greater than the length of the sleeve 34, the compression spring 29 is sleeved on the limit rod 27, and the two ends of the compression spring 29 are in contact with the first annular plate 28 and the second fixed block 23 respectively. The input end of the push rod motor 11 It is electrically connected to the output end of the foot switch 19, and the input end of the foot switch 19 is electrically connected to an external power supply.

Embodiment 2:

1-5, an electrochemiluminescence instrument for tumor radiotherapy reference marker detection includes an electrochemiluminescence instrument body 1 and an interface 2 arranged on the electrochemiluminescence instrument body 1, and the electrochemiluminescence instrument body 1 is provided with The movable baffle 3 is provided with a damping mechanism 4, and the movable baffle 3 is provided with a first through hole 5. The damping mechanism 4 includes a support column 6 and a pressing plate 7, and the pressing plate 7 passes through the first through hole 5. A screw 8 is fixedly installed on the electrochemiluminescence meter body 1, the first screw 8 penetrates the support column 6, a rubber gasket 9 is arranged between the pressing plate 7 and the movable block 3, and the bottom of the electrochemiluminescence meter body 1 is fixedly installed There is a bottom fixed plate 10, and the bottom of the bottom fixed plate 10 is provided with a push rod motor 11, the bottom of the push rod motor 11 is fixedly installed with a bottom support plate 12, and the output shaft of the push rod motor 11 is fixedly connected with the bottom fixed plate 10, Four telescopic shafts 13 are arranged between the bottom fixing plate 10 and the bottom supporting plate 12 , and a limiting mechanism 14 is arranged on the telescopic shafts 13 , and four second through holes 15 are opened on the bottom supporting plate 12 , and the second through holes A shock absorber 16 runs through the inside of the shock absorber 15, an annular plate 17 is installed at the bottom of the shock absorber 16, and the annular plate 17 is fixedly installed on the bottom support plate 12, and a universal wheel 18 is installed at the bottom of the shock absorber shaft of the shock absorber 16. The foot switch 19 is fixedly installed on the bottom support plate 12 , the movable shaft end of the telescopic shaft 13 is fixedly connected with the bottom fixed plate 10 , and the bottom of the telescopic shaft 13 is fixedly connected with the bottom support plate 12 .

The side of the movable shaft of the telescopic shaft 13 is provided with a bar-shaped groove 20, and the inner surface of the bar-shaped groove 20 is provided with a plurality of limit slots 21. The limit mechanism 14 includes a first fixing block 22 and a second fixing block 23, and the third Two connecting rods 24 are fixedly connected between a fixed block 22 and a second fixed block 23 , the first fixed block 22 is fixedly installed on the telescopic shaft 13 , and a third through hole 25 is opened on the first fixed block 22 . A fourth through hole 26 is formed on the two fixing blocks 23 , the third through hole 25 and the fourth through hole 26 have the same limit rod 27 penetrating through the interior, and the limit rod 27 is fixed with the first annular plate 28 and the Two annular sheets 33, a compression spring 29 is arranged between the first fixing block 22 and the second fixing block 23, a rectangular sheet 30 is fixed at one end of the limit rod 27, and a rectangular block 31 is fixed at one end of the rectangular sheet 30. The rectangular block One end of the 31 is provided with several limit protrusions 32, and the limit protrusions 32 are matched with the limit card slots 21. The cross-sectional shape of the limit protrusions 32 is a right triangle, and the limit rod 27 is sleeved with a The sleeve 34 is fixed with a positioning block 35 on the outer side of the sleeve 34, the other end of the limit rod 27 is fixedly installed with a circular sheet 36 through a second screw 37, and one end of the second fixing block 23 is fixed with a positioning plate 38, And one end of the positioning plate 38 is provided with a positioning groove 39, the cross-sectional diameter of the support column 6 is smaller than the diameter of the first through hole 5, and the support column 6 penetrates the first through hole 5, and the movable baffle 3 is far away from the electrochemiluminescence meter body 1. The outer surface of one side is provided with a number of anti-skid protruding strips, the several anti-skid protruding strips are parallel to each other, the sleeve 34 is located between the second annular sheet 33 and the circular sheet 36, and the second annular sheet 33 and the circular sheet 36 The distance is greater than the length of the sleeve 34, the compression spring 29 is sleeved on the limit rod 27, and the two ends of the compression spring 29 are in contact with the first annular plate 28 and the second fixed block 23 respectively. The input end of the push rod motor 11 It is electrically connected to the output end of the foot switch 19, and the input end of the foot switch 19 is electrically connected to an external power supply. Two rectangular columns 40 are fixedly installed on the outer surfaces of the front and rear ends of the bottom support plate 12. 40 is threadedly connected with a threaded rod 41, a foot washer 42 is installed at the bottom of the threaded rod 41, and a cross rod 43 is welded on the top of the threaded rod 41, and a third annular sheet 44 is welded on the threaded rod 41. One end of the cross rod 43 The handle bar 45 is welded.

Working principle: When using, first need to remove the movable baffle 3 that blocks the interface 2, as follows: directly push the movable baffle 3, when the movable baffle 3 bears a greater thrust than the movable baffle 3 and the electrochemiluminescence meter body 1 and the friction between the rubber washers 9, the movable block 3 will rotate around the support column 6, and the movable block 3 can be removed from the opening of the interface 2, and then use the interface 2 to connect with external devices and power supplies. Connected together, the first screw 8 is used to press the pressing plate 7, thereby increasing the friction between the rubber washer 9 and the movable block 3. After completion, use the foot switch 19 to start the push rod motor 11, and use the push The rod motor 11 adjusts the height of the electrochemiluminescence meter body 1 so that the height of the electrochemiluminescence meter body 1 can meet the needs of workers with different heights. During the adjustment process, the length of the telescopic shaft 13 will also change, so it is In cooperation with the limit mechanism 14, the separation of the limit slot 21 and the limit protrusion 32 should be adjusted before starting the push rod motor 11. When the height of the electrochemiluminescence meter body 1 needs to be raised, there is no need to separate the limit slot. 21 and the limit protrusion 32. At this time, during the extension process of the telescopic shaft 13, the limit protrusion 32 will not affect the upward movement of the movable shaft of the telescopic shaft 13. When the height is high, the limit slot 21 and the limit protrusion 32 need to be separated first, otherwise the limit protrusion 32 will limit the shortening of the telescopic shaft 13. The operation of separating the limit slot 21 and the limit protrusion 32 is as follows: directly Pull the sleeve 34 to drive the limit rod 27 to move to the left, then rotate the sleeve 34 to make the positioning block 35 move to one end of the positioning plate 38, and then cancel the pulling force acting on the limit rod 27, the compression spring 29 can be used. The elastic force control positioning block 35 is snapped into the interior of the positioning slot 39. At this time, the limit protrusion 32 will exit the limit card slot 21. After the lowering is completed, the limit protrusion 32 is controlled to be re-inserted into the limit card. The inside of the slot 21 is enough, and the limit mechanism 14 can effectively prevent the telescopic shaft 13 from shortening, so as to offset the gap between the electrochemiluminescence meter body 1 and the output shaft of the push rod motor 11 during the movement of the electrochemiluminescence meter body 1. The torque force of the electrochemiluminescence meter 1 can be moved smoothly and safely. The universal wheel 18 is convenient for people to move the electrochemiluminescence meter body 1. The shock absorber 16 can buffer the vibration during the movement process, and realize the protection of electricity. For the protection of the chemiluminescence instrument body 1, compared with the first embodiment, in the second embodiment, after moving the chemiluminescence instrument body 1 to a designated position, the handle rod 45 needs to be used to drive the threaded rod 41 on the rectangular column 40. Rotate to use the threaded rod 41 to push the foot washer 42 down to contact with the ground, thereby increasing the friction between the bottom support plate 12 and the ground, improving the stability of the electrochemiluminescence instrument body 1, the third annular sheet 44 makes the protruding lengths of the four threaded rods 41 the same, avoiding the situation that the electrochemiluminescence meter body 1 is inclined, the present invention effectively avoids the poor contact of the interface 2, and can adjust the height of the electrochemiluminescence meter. , which is convenient for people to operate, At the same time, the electrochemiluminescence instrument is easy to move, high in safety and strong in practicability.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. The equivalent replacement or change of the inventive concept thereof shall be included within the protection scope of the present invention.

Claims (8)

1. An electrochemiluminescence meter for tumor radiotherapy reference marker detection, comprising an electrochemiluminescence meter body (1) and an interface (2) arranged on the electrochemiluminescence meter body (1), characterized in that the electrochemiluminescence meter body (1) is A movable blocking piece (3) is provided on the chemiluminescence instrument body (1), a damping mechanism (4) is provided on the movable blocking piece (3), and a first through hole (5) is opened on the movable blocking piece (3). ), the damping mechanism (4) includes a support column (6) and a pressing plate (7), and the pressing plate (7) is fixedly mounted on the electrochemiluminescence instrument body (1) by a first screw (8), The first screw (8) penetrates the support column (6), a rubber gasket (9) is arranged between the pressing plate (7) and the movable blocking plate (3), and the electrochemiluminescence meter body (1) A bottom fixing plate (10) is fixedly installed at the bottom of the bottom, and a push rod motor (11) is arranged at the bottom of the bottom fixing plate (10), and a bottom support plate (12) is fixedly installed at the bottom of the push rod motor (11), And the output shaft of the push rod motor (11) is fixedly connected with the bottom fixing plate (10), and four telescopic shafts (13) are arranged between the bottom fixing plate (10) and the bottom supporting plate (12), and the telescopic shafts (13) A limiting mechanism (14) is provided on the bottom support plate (12), four second through holes (15) are formed on the bottom support plate (12), and a shock absorber (16) runs through the inside of the second through holes (15). ), an annular plate (17) is installed at the bottom of the shock absorber (16), and the annular plate (17) is fixedly installed on the bottom support plate (12). A universal wheel (18) is installed, a foot switch (19) is fixedly installed on the bottom support plate (12), and the movable shaft end of the telescopic shaft (13) is fixedly connected to the bottom fixing plate (10), And the bottom of the telescopic shaft (13) is fixedly connected with the bottom support plate (12). 2 . The electrochemiluminescence instrument for tumor radiotherapy reference marker detection according to claim 1 , wherein a bar-shaped groove (20) is provided on the side of the movable shaft of the telescopic shaft (13), and the bar-shaped The inner surface of the groove (20) is provided with a plurality of limit slots (21), the limit mechanism (14) includes a first fixing block (22) and a second fixing block (23), and the first fixing block (22) ) and the second fixing block (23) are fixedly connected with two connecting rods (24), the first fixing block (22) is fixedly installed on the telescopic shaft (13), and the first fixing block (22) A third through hole (25) is opened, a fourth through hole (26) is opened on the second fixing block (23), and the third through hole (25) and the interior of the fourth through hole (26) penetrate through There is the same limit rod (27), and the limit rod (27) is fixed with a first annular sheet (28) and a second annular sheet (33), the first fixed block (22) and the second fixed block A compression spring (29) is arranged between (23), a rectangular sheet (30) is fixed at one end of the limit rod (27), and a rectangular block (31) is fixed at one end of the rectangular sheet (30). One end of the block (31) is provided with a plurality of limit protrusions (32), and the limit protrusions (32) are matched with the limit card grooves (21). The cross section of the limit protrusions (32) The shape is a right-angled triangle, a sleeve (34) is sleeved on the limit rod (27), and a positioning block (35) is fixed on the outer side of the sleeve (34). A circular sheet (36) is fixedly installed at one end by a second screw (37), a positioning plate (38) is fixed at one end of the second fixing block (23), and a positioning groove (38) is opened at one end of the positioning plate (38). 39). 3. The electrochemiluminescence instrument for detecting tumor radiotherapy reference markers according to claim 1, wherein the cross-sectional diameter of the support column (6) is smaller than the diameter of the first through hole (5), and The support column (6) penetrates the first through hole (5). 4 . The electrochemiluminescence instrument for tumor radiotherapy reference marker detection according to claim 1 , wherein the movable baffle ( 3 ) is arranged on the outer surface of one side away from the electrochemiluminescence instrument body ( 1 ). 5 . There are several anti-skid protruding strips, and several anti-skid protruding strips are parallel to each other. 5 . The electrochemiluminescence instrument for detecting reference markers in tumor radiotherapy according to claim 2 , wherein the sleeve ( 34 ) is located between the second annular sheet ( 33 ) and the circular sheet ( 36 ). 6 . and the distance between the second annular sheet (33) and the circular sheet (36) is greater than the length of the sleeve (34). 6. The electrochemiluminescence instrument for tumor radiotherapy reference marker detection according to claim 2, wherein the compression spring (29) is sleeved on the limit rod (27), and the compression spring (29) ) are respectively in contact with the first annular sheet (28) and the second fixing block (23). 7 . The electrochemiluminescence instrument for tumor radiotherapy reference marker detection according to claim 1 , wherein the input end of the push rod motor ( 11 ) is electrically connected to the output end of the foot switch ( 19 ). 8 . connected, and the input end of the foot switch (19) is electrically connected with the external power supply. 8. The electrochemiluminescence instrument for tumor radiotherapy reference marker detection according to claim 1, wherein two rectangular columns ( 40), and a threaded rod (41) is threadedly connected to the rectangular column (40), a foot washer (42) is installed on the bottom of the threaded rod (41), and a cross rod (42) is welded on the top of the threaded rod (41). 43), a third annular sheet (44) is welded on the threaded rod (41), and a handle rod (45) is welded on one end of the transverse rod (43).

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