A fully automatic biochemical analyzer

Abstract

This invention relates to the field of fully automated analyzer technology, specifically a fully automated biochemical analyzer, comprising an instrument body. The upper surface of the instrument body has a cylindrical grooved cavity. A motor is fixedly connected to the center of the lower surface of the cavity, and a disc is fixedly connected to the upper end of the motor's output shaft. A support column is fixedly connected to the center of the upper surface of the disc, and a turntable is fixedly connected to the upper end of the support column. Six primary circular holes are equidistantly spaced along the outer edge of the upper surface of the turntable, and clamping mechanisms are installed within each primary circular hole. Secondary circular holes are symmetrically arranged on both sides of each primary circular hole, and limiting mechanisms are installed within each secondary circular hole. This fully automated biochemical analyzer adjusts the distance between the two clamping plates inside each primary circular hole to clamp the test tube according to its size, allowing the instrument to adapt to test tubes of different sizes and improving detection efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of full-automatic analyzers, in particular to a full-automatic biochemical analyzer. Background Art

[0002] The fully automatic biochemical analyzer is an instrument that measures a certain chemical component in body fluids based on the principle of photoelectric colorimetry. Due to its fast measurement speed, high accuracy, and small reagent consumption, it is now widely used in hospitals, epidemic prevention stations, and family planning service stations at all levels. Its combined use can greatly improve the efficiency and benefits of routine biochemical tests.

[0003] However, in the prior art, round holes are opened on the turntable to place test tubes, and the size of the round holes is mostly fixed, and can only be used to place test tubes of fixed specifications. During testing, test tubes of different specifications are often selected according to different samples to hold samples, and the round holes of fixed sizes cannot adapt to test tubes of different specifications, which has great limitations. In addition, there is a lack of a clamping device. During the rotation of the turntable, the test tube in the round hole is prone to shaking, causing the sample to splash out of the test tube, thereby reducing the detection efficiency. Summary of the invention

[0004] The object of the present invention is to provide a fully automatic biochemical analyzer to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fully automatic biochemical analyzer, comprising an instrument body, a cavity with a cylindrical groove structure is provided on the upper end surface of the instrument body, a motor is fixedly connected to the center position of the lower end surface of the cavity, and a disc is fixedly connected to the upper end of the output shaft of the motor, a pillar is fixedly connected to the center position of the upper end surface of the disc, and a turntable is fixedly connected to the upper end of the pillar, six primary circular holes are equidistantly provided in a ring along the outer edge of the upper end surface of the turntable, and a clamping mechanism is arranged in the primary circular hole, secondary circular holes are symmetrically provided on the front and rear sides of each of the primary circular holes, and a limiting mechanism is arranged in the secondary circular hole, a frame plate is fixedly connected to the right side of the upper end surface of the instrument body, and a detection head is fixedly connected to the lower end surface of the frame plate.

[0006] Preferably, the clamping mechanism includes a primary movable rod, a spring groove, a primary spring and a clamping plate, two of the clamping plates are axially symmetrically arranged at the center position inside the primary circular hole, and the inner side surface of the clamping plate is an arc-shaped structure, and two spring grooves are symmetrically opened at the center position of the inner wall of the primary circular hole corresponding to the clamping plate, one end of the primary movable rod passes through the spring groove and is fixedly connected to the center position of the outer side surface of the clamping plate, and the other end thereof is located in the secondary circular hole, a primary spring is sleeved on the outer surface of the primary movable rod, one end of the primary spring is fixedly connected to the inner side surface of the spring groove, and the other end thereof is fixedly connected to the outer side surface of the clamping plate.

[0007] Preferably, a protective sleeve with a cylindrical structure is fixedly connected to the outer edge of the lower end surface of the primary circular hole, and a soft cushion is fixedly connected to the lower end of the protective sleeve. The interior of the protective sleeve is filled with thermal insulation cotton, and a heating wire is buried inside the thermal insulation cotton.

[0008] Preferably, a plug hole is provided at the center of the thermal insulation cotton, and the upper end of the plug hole is a trumpet-shaped structure that is larger at the top and smaller at the bottom.

[0009] Preferably, the heating wire is made of a ductile metal material, and the heating wire is distributed in a spiral structure outside the socket.

[0010] Preferably, a support block is provided at the center position below the cushion, and a secondary movable rod is fixedly connected to the center position of the lower end surface of the support block, the secondary spring is sleeved on the outer surface of the secondary movable rod, and the upper end of the secondary spring is fixedly connected to the lower end surface of the support block, and the lower end is fixedly connected to the upper end surface of the disc, and the upper end surface of the disc is provided with six rod holes equidistantly arranged in a ring corresponding to the secondary movable rod, and the lower end of the secondary movable rod is placed in the rod hole.

[0011] Preferably, a pipe holder with an arc-shaped structure is fixedly connected to the center position of the upper end surface of the support block, and the pipe holder is made of a flexible rubber material.

[0012] Preferably, a limiting mechanism is provided on both sides of the left and right sides of the support block, and the limiting mechanism includes a hinge seat, a three-stage spring, a hinge rod, a support rod, a pry rod, a crank and a push rod. The hinge seat is fixedly connected to the left and right sides of the support block, and the hinge rod is hinged to the hinge seat respectively, the lower end of the three-stage spring is fixedly connected to the upper end of the hinge rod, and the upper end of the three-stage spring is fixedly connected to the lower end of the pry rod, the support rod is fixedly connected to the upper end surface of the disk on the left and right sides of the support block, and the center position of the pry rod is hinged to the upper end of the support rod, the upper end of the crank is hinged to the lower end of the push rod, and its lower end is hinged to the upper end of the pry rod, the upper end of the push rod is located in the secondary circular hole, and the upper end of the push rod has an inclined surface structure, and ball grooves with semicircular groove structures are equidistantly provided on the inclined surface of the upper end of the push rod, and a limiting ball is fixedly connected to the lower side of the end of the first-level movable rod.

[0013] Preferably, a rectangular groove is provided on the upper end surface of the turntable on the side of the secondary circular hole close to the outer edge of the turntable, a pull rod is provided on the left side of the rectangular groove, and a cross bar is fixedly connected to the right side of the pull rod at the notch position at the upper end of the rectangular groove, a limiting rod is provided at the lower end of the rectangular groove, and a hinge shaft is fixedly connected to the right side of the lower end of the rectangular groove at the connecting position with the secondary circular hole, and the limiting rod is hinged to the hinge shaft, and a spring leaf with its left end tilted downward is fixedly connected equidistantly at the upper position of the left side surface of the push rod.

[0014] Preferably, a support ring is fixedly connected to the outer edge of the lower end surface of the cavity, and a track with an annular groove structure is opened on the upper end surface of the support ring, and a track is correspondingly opened on the outer edge of the lower end surface of the disk, and a ball is arranged between the two tracks.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. According to the specifications of the test tube, the distance between the two clamping plates of each primary circular hole is adjusted to clamp the test tube, so that the instrument can adapt to test tubes of different specifications and improve the detection efficiency;

[0017] 2. The clamping mechanism is limited by the limiting mechanism to prevent the clamping mechanism from shaking during the rotation of the turntable and causing the sample in the test tube to splash out of the test tube, thereby improving the detection quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention;

[0020] Figure 2 For the present invention Figure 1 The cross-sectional view at AA in FIG.

[0021] Figure 3 A top view of the instrument body of the present invention;

[0022] Figure 4 For the present invention Figure 2 The enlarged view of point B in the figure;

[0023] Figure 5 For the present invention Figure 2 Enlarged view of point C in the figure.

[0024] Description of reference numerals:

[0025] 1. Instrument body; 11. Cavity; 12. Motor; 13. Disc; 14. Pillar; 15. Turntable; 16. Primary round hole; 17. Secondary round hole; 2. Protective cover; 21. Heating wire; 22. Insulation cotton; 23. Cushion; 24. Socket; 3. Support block; 31. Pipe support; 32. Secondary spring; 33. Secondary movable rod; 34. Rod hole; 4. Limiting mechanism; 41. Articulated seat; 411. Third-level spring; 412 , hinged rod; 42, support rod; 43, pry rod; 44, crank; 45, push rod; 5, clamping mechanism; 51, primary movable rod; 52, spring groove; 53, primary spring; 54, clamping plate; 6, rectangular groove; 61, pull rod; 62, cross bar; 63, limit rod; 64, hinge shaft; 65, spring leaf; 7, ball groove; 71, limit ball; 8, frame plate; 81, detection head; 9, support ring; 91, track; 92, ball. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figures 1 to 5 , the present invention provides a technical solution:

[0028] A fully automatic biochemical analyzer comprises an instrument body 1, wherein a cavity 11 with a cylindrical groove structure is provided on the upper end surface of the instrument body 1, a motor 12 is fixedly connected to the center position of the lower end surface of the cavity 11, and a disc 13 is fixedly connected to the upper end of the output shaft of the motor 12, a pillar 14 is fixedly connected to the center position of the upper end surface of the disc 13, and a turntable 15 is fixedly connected to the upper end of the pillar 14, six primary circular holes 16 are equidistantly provided in a ring along the outer edge of the upper end surface of the turntable 15, and a clamping mechanism 5 is provided in the primary circular hole 16, secondary circular holes 17 are symmetrically provided on the front and rear sides of each of the primary circular holes 16, and a limiting mechanism 4 is provided in the secondary circular hole 17, a frame plate 8 is fixedly connected to the right side of the upper end surface of the instrument body 1, and a detection head 81 is fixedly connected to the lower end surface of the frame plate 8.

[0029] During operation, a test tube containing a sample is placed in the primary circular hole 16, and the clamping mechanism 5 is driven by the limiting mechanism 4 to clamp and fix the test tube. Then, the motor 12 is started to drive the disc 13 to rotate, thereby driving the turntable 15 to rotate, and the sample in the test tube is detected by the detection head 81.

[0030] As an embodiment of the present invention, Figure 2 and Figure 4As shown, the clamping mechanism 5 includes a primary movable rod 51, a spring slot 52, a primary spring 53 and a clamping plate 54. Two clamping plates 54 are axially symmetrically arranged at the center position inside the primary circular hole 16, and the inner side surface of the clamping plate 54 is an arc-shaped structure. Two spring slots 52 are symmetrically opened at the center position of the inner wall of the primary circular hole 16 corresponding to the clamping plate 54. One end of the primary movable rod 51 passes through the spring slot 52 and is fixedly connected to the center position of the outer side surface of the clamping plate 54, and the other end is located in the secondary circular hole 17. The outer surface of the primary movable rod 51 is sleeved with a primary spring 53. The primary spring One end of 53 is fixedly connected to the inner side surface of the spring groove 52, and the other end thereof is fixedly connected to the outer side surface of the clamping plate 54, a protective sleeve 2 of a cylindrical structure is fixedly connected to the outer edge of the lower end surface of the primary circular hole 16, and a soft cushion 23 is fixedly connected to the lower end of the protective sleeve 2, the interior of the protective sleeve 2 is filled with thermal insulation cotton 22, and a heating wire 21 is buried inside the thermal insulation cotton 22, a plug hole 24 is opened at the center of the thermal insulation cotton 22, and the upper end of the plug hole 24 is a trumpet-shaped structure with a larger upper part and a smaller lower part, the heating wire 21 is made of ductile metal material, and the heating wire 21 is distributed in a spiral structure on the outside of the plug hole 24.

[0031] During operation, when the test tube is placed into the primary circular hole 16, the limiting mechanism 4 will be driven to squeeze the primary movable rod 51 in the secondary circular hole 17, so that the two primary movable rods 51 in the primary circular hole 16 are close to each other, thereby driving the two clamping plates 54 to clamp and fix the test tube, so as to prevent the test tube from shaking during the rotation of the turntable 15 and causing the sample to splash out of the test tube, thereby improving the detection quality and preventing the test tube from colliding with the inner wall of the primary circular hole 16 and causing damage, thereby extending the service life of the test tube. The upper end of the jack 24 is a trumpet-shaped structure with a large upper part and a small lower part, which facilitates the insertion of the test tube. The protective cover 2 The thermal insulation cotton 22 can be used to protect the test tube, and the soft pad 23 can fall as the test tube is inserted. Since the thermal insulation cotton 22 has good flexibility, the thermal insulation cotton 22 can adapt to test tubes of different specifications. The test tube is heated by the heating wire 21 to ensure the biological activity of the sample in the test tube. The thermal insulation cotton 22 delays the loss of heat, thereby improving the detection effect. Since the heating wire 21 is made of ductile metal material and the heating wire 21 is distributed in a spiral structure on the outside of the jack 24, the heating wire 21 can be deformed accordingly according to the test tubes of different specifications, which is convenient for uniform heating of the test tubes.

[0032] As an embodiment of the present invention, Figure 2 , Figure 4 and Figure 4As shown, a support block 3 is provided at the center position below the cushion 23, a pipe support 31 of an arc-shaped structure is fixedly connected to the center position of the upper end surface of the support block 3, a secondary movable rod 33 is fixedly connected to the center position of the lower end surface of the support block 3, the secondary spring 32 is sleeved on the outer surface of the secondary movable rod 33, and the upper end of the secondary spring 32 is fixedly connected to the lower end surface of the support block 3, and the lower end thereof is fixedly connected to the upper end surface of the disc 13, six rod holes 34 are equidistantly provided in an annular manner corresponding to the secondary movable rod 33, and the secondary movable rod 33 is fixedly connected to the upper end surface of the disc 13. The lower end of the support block 3 is placed in the rod hole 34, the center position of the upper end surface of the support block 3 is fixedly connected to the arc-shaped pipe support 31, and the pipe support 31 is made of flexible rubber material, the limiting mechanism 4 includes an articulated seat 41, a three-stage spring 411, an articulated rod 412, a support rod 42, a pry bar 43, a crank 44 and a push rod 45, the articulated seat 41 is fixedly connected to the left and right sides of the support block 3, and the articulated rod 412 is respectively hinged to the articulated seat 41, the lower end of the three-stage spring 411 is fixedly connected to the upper end of the articulated rod 412, and the upper end of the three-stage spring 411 is fixedly connected to the pry bar 45. The lower end of the rod 43 is fixedly connected, the support rod 42 is fixedly connected to the upper end surface of the disk 13 on the left and right sides of the support block 3, and the center position of the pry rod 43 is hinged to the upper end of the support rod 42, the upper end of the crank 44 is hinged to the lower end of the push rod 45, and its lower end is hinged to the upper end of the pry rod 43, the upper end of the push rod 45 is located in the secondary circular hole 17, and the upper end of the push rod 45 is an inclined surface structure, and the inclined surface of the upper end of the push rod 45 is equidistantly provided with ball grooves 7 of semicircular groove structure, and the lower side of the end of the primary movable rod 51 is fixedly connected to the limiting ball 71 correspondingly, and the secondary movable rod 51 is fixedly connected to the lower end of the primary movable rod 51. A rectangular groove 6 is provided on the upper end surface of the turntable 15 on the side near the outer edge of the secondary circular hole 17, a pull rod 61 is provided on the left side inside the rectangular groove 6, and a cross bar 62 is fixedly connected to the right side surface of the pull rod 61 at the notch position at the upper end of the rectangular groove 6, a limiting rod 63 is provided at the lower end of the rectangular groove 6, and a hinge shaft 64 is fixedly connected to the right side surface of the lower end of the rectangular groove 6 at the communication position with the secondary circular hole 17, and the limiting rod 63 is hinged to the hinge shaft 64, and a spring leaf 65 with its left end tilted downward is fixedly connected equidistantly at the upper position of the left side surface of the push rod 45.

[0033] During operation, based on the above embodiment, as the test tube is continuously inserted, the lower end of the test tube drives the cushion 23 to contact the upper end surface of the tube holder 31. The tube holder 31 made of flexible rubber material can buffer the test tube to prevent the lower end of the test tube from colliding with the support block 3 and being damaged, and then drives the support block 3 to move downward, thereby driving the secondary movable rod 33 to move downward along the rod hole 34. The secondary movable rod 33 guides the support block 3 to prevent the test tube from deviating. Since the upper end of the secondary spring 32 is fixedly connected to the lower end surface of the support block 3, and its lower end is fixedly connected to the upper end surface of the disc 13, the support block 3 is buffered by the secondary spring 32 to prevent the support block 3 from colliding with the disc 13. In order to store force for the subsequent popping out of the test tube, the lower end of the three-stage spring 411 is fixedly connected to the upper end of the hinged rod 412, the upper end of the three-stage spring 411 is fixedly connected to the lower end of the pry bar 43, and the middle position of the pry bar 43 is hinged to the upper end of the support rod 42, so that when the support block 3 moves downward, the three-stage spring 411 is driven to stretch downward, and as the three-stage spring 411 continues to stretch, the lower end of the pry bar 43 is pulled downward, so that the pry bar 43 rotates around the upper end of the support rod 42, thereby driving the upper end of the pry bar 43 to move upward, and the upper end of the crank 44 is hinged to the lower end of the push rod 45, and its lower end is hinged to the upper end of the pry bar 43, thereby driving the push rod 45 to move upward, Ball grooves 7 with semicircular groove structures are equidistantly provided, and the lower side of the end of the first-level movable rod 51 is fixedly connected to the limiting ball 71, so that the limiting ball 71 moves upward along the ball groove 7. When the clamping plate 54 contacts the test tube, it stops pressing down on the test tube, thereby completing the clamping of the test tube. The limiting rod 63 passes through the lower end of the inner right side surface of the rectangular groove 6 to the secondary circular hole 17. When the push rod 45 moves upward, the reed 65 will deform downward when it touches the right end of the limiting rod 63. When the reed 65 passes through the limiting rod 63, the reed 65 is reset, thereby being blocked by the limiting rod 63, and then the push rod 45 is limited in the secondary circular hole 17. The push rod 45 stops moving, completing the clamping and fixing of the test tube. When the detection is completed, , pull the pull rod 61 upward. Since the lower end of the pull rod 61 is hinged to the left end of the limiting rod 63, the middle position of the limiting rod 63 is hinged to the hinge shaft 64, and an inclined groove is provided on the inner wall of the secondary circular hole 17 below the right side of the limiting rod 63, the left end of the limiting rod 63 is pulled upward, and the right end of the limiting rod 63 drops, so that the spring leaf 65 is free from the obstruction of the limiting rod 63, so that the secondary spring 32 under the supporting block 3 loses its restraint and rebounds, so that the supporting block 3 moves upward, thereby driving the push rod 45 to leave the primary movable rod 51, and the primary spring 53 loses the squeezing of the push rod 45 and rebounds, so that the test tube is separated from the clamp 54, and then the primary circular hole 16 is popped out under the action of the secondary spring 32, which facilitates the removal of the test tube.

[0034] As an embodiment of the present invention, Figure 2As shown, a support ring 9 is fixedly connected to the outer edge of the lower end surface of the cavity 11, and a track 91 with an annular groove structure is opened on the upper end surface of the support ring 9, and a track 91 is correspondingly opened on the outer edge of the lower end surface of the disk 13, and a ball 92 is arranged between the two tracks 91.

[0035] During operation, based on the above embodiment, the disc 13 rotates under the drive of the motor 12, and the bearing capacity of the disc 13 is improved by the support ring 9, while preventing the disc 13 from shaking during the rotation and affecting the detection effect. The ball 92 is arranged between the two tracks 91 to reduce the wear between the disc 13 and the support ring 9.

[0036] Working principle: When placing the test tube containing the sample into the primary circular hole 16, the upper end of the insertion hole 24 is in a trumpet-shaped structure with a larger upper part and a smaller lower part, which facilitates the insertion of the test tube. The protective cover 2 cooperates with the thermal insulation cotton 22 to protect the test tube, and the soft pad 23 can fall with the insertion of the test tube. Since the thermal insulation cotton 22 has good flexibility, the thermal insulation cotton 22 can adapt to test tubes of different specifications. The test tube is heated by the heating wire 21 to ensure the biological activity of the sample in the test tube, and the thermal insulation cotton 22 delays the loss of heat. Since the heating wire 21 is made of a ductile metal material and the heating wire 21 is distributed in a spiral structure on the outside of the insertion hole 24, the heating wire 21 can be deformed accordingly according to the test tubes of different specifications, which is convenient for uniform heating of the test tubes. The test tube is heated, thereby improving the detection effect. As the test tube is continuously inserted, the lower end of the test tube drives the cushion 23 to contact the upper end surface of the tube holder 31, and then drives the support block 3 to move downward, thereby driving the secondary movable rod 33 to move downward along the rod hole 34. The secondary movable rod 33 guides the support block 3 to prevent the test tube from deviating. Since the lower end of the tertiary spring 411 is fixedly connected to the upper end of the hinged rod 412, the upper end of the tertiary spring 411 is fixedly connected to the lower end of the pry bar 43, and the middle position of the pry bar 43 is hinged to the upper end of the support rod 42, when the support block 3 moves downward, the tertiary spring 411 is driven to stretch downward. As the tertiary spring 411 continues to stretch, the lower end of the pry bar 43 is pulled downward, so that the pry bar 43 moves around the upper end of the support rod 42 The upper end of the push rod 43 rotates, thereby driving the upper end of the pry rod 43 to move upward. Since the ball grooves 7 with semicircular groove structures are equidistantly opened on the inclined surface of the upper end of the push rod 45, and the lower side of the end of the first-level movable rod 51 is fixedly connected to the limiting ball 71, the limiting ball 71 moves upward along the ball groove 7, and the limiting rod 63 passes through the lower end of the right side surface of the inner side of the rectangular groove 6 to the secondary circular hole 17. When the push rod 45 moves upward, the spring 65 will deform downward when touching the right end of the limiting rod 63. When the spring 65 passes through the limiting rod 63, the spring 65 is reset, thereby being blocked by the limiting rod 63, and then the push rod 45 is restricted in the secondary circular hole 17. When the clamping plate 54 contacts the test tube, it stops pressing down on the test tube, and the push rod 45 stops moving, completing the clamping and fixing of the test tube. Then the motor 12 is started to drive the disc 13 to rotate, thereby driving the turntable 15 to rotate, and the sample in the test tube is tested through the detection head 81, and the bearing capacity of the disc 13 is increased by the support ring 9, while preventing the disc 13 from shaking during the rotation and affecting the detection effect. By arranging the ball 92 between the two tracks 91, the wear between the disc 13 and the support ring 9 is reduced. When the detection is completed, the pull rod 61 is pulled up. Since the lower end of the pull rod 61 is hinged to the left end of the limit rod 63, the middle position of the limit rod 63 is hinged to the hinge shaft 64, and an inclined groove is provided on the inner wall of the secondary circular hole 17 below the right side of the limit rod 63, the left end of the limit rod 63 is pulled up, and the right end of the limit rod 63 drops, so that the spring leaf 65 is free from the obstruction of the limit rod 63.The secondary spring 32 under the support block 3 loses its restraint and rebounds, causing the support block 3 to move upward, thereby driving the push rod 45 to leave the primary movable rod 51, and the primary spring 53 loses the squeeze of the push rod 45 and rebounds, causing the test tube to separate from the clamping plate 54, and then the primary round hole 16 is ejected under the action of the secondary spring 32, making it convenient to take out the test tube.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fully automatic biochemical analyzer, comprising an instrument body (1), characterized in that: The upper end surface of the instrument body (1) is provided with a cavity (11) with a cylindrical groove structure, the center position of the lower end surface of the cavity (11) is fixedly connected to a motor (12), and the upper end of the output shaft of the motor (12) is fixedly connected to a disk (13), the center position of the upper end surface of the disk (13) is fixedly connected to a pillar (14), and the upper end of the pillar (14) is fixedly connected to a turntable (15), six primary circular holes (16) are equidistantly formed in an annular shape on the outer edge of the upper end surface of the turntable (15), and a clamping mechanism (5) is arranged in the primary circular hole (16), and secondary circular holes (17) are symmetrically formed on the front and rear sides of each primary circular hole (16), and a limiting mechanism (4) is arranged in the secondary circular hole (17), and a frame plate (8) is fixedly connected to the right side of the upper end surface of the instrument body (1), and a detection head (81) is fixedly connected to the lower end surface of the frame plate (8); The clamping mechanism (5) comprises a primary movable rod (51), a spring groove (52), a primary spring (53) and a clamping plate (54); two of the clamping plates (54) are symmetrically arranged at the center position inside the primary circular hole (16), and the inner side surface of the clamping plate (54) is in an arc-shaped structure; two of the spring grooves (52) are symmetrically opened at the center position of the inner wall of the primary circular hole (16) corresponding to the clamping plates (54); one end of the primary movable rod (51) passes through the spring groove (52) and is fixedly connected to the center position of the outer side surface of the clamping plate (54), and the other end thereof is located in the secondary circular hole (17); the outer surface of the primary movable rod (51) is sleeved with a primary spring (53); one end of the primary spring (53) is fixedly connected to the inner side surface of the spring groove (52), and the other end thereof is fixedly connected to the outer side surface of the clamping plate (54); A protective sleeve (2) of a cylindrical structure is fixedly connected to the outer edge of the lower end surface of the primary circular hole (16), and a soft cushion (23) is fixedly connected to the lower end of the protective sleeve (2), the interior of the protective sleeve (2) is filled with thermal insulation cotton (22), and a heating wire (21) is buried inside the thermal insulation cotton (22); The thermal insulation cotton (22) is provided with an insertion hole (24) at the center, and the upper end of the insertion hole (24) is in a trumpet-shaped structure with a larger upper portion and a smaller lower portion; The heating wire (21) is made of a ductile metal material, and the heating wire (21) is distributed in a spiral structure outside the insertion hole (24); A support block (3) is provided at the center position below the soft cushion (23); a secondary movable rod (33) is fixedly connected to the center position of the lower end surface of the support block (3); a secondary spring (32) is sleeved on the outer surface of the secondary movable rod (33); the upper end of the secondary spring (32) is fixedly connected to the lower end surface of the support block (3); and the lower end of the secondary spring (32) is fixedly connected to the upper end surface of the disc (13); six rod holes (34) are equidistantly arranged in a ring shape corresponding to the secondary movable rod (33); and the lower end of the secondary movable rod (33) is placed in the rod hole (34); A pipe support (31) with an arc-shaped structure is fixedly connected to the center position of the upper end surface of the support block (3), and the pipe support (31) is made of a flexible rubber material; The support block (3) is provided with a limit mechanism (4) on both sides thereof, and the limit mechanism (4) comprises a hinge seat (41), a three-stage spring (411), a hinge rod (412), a support rod (42), a pry rod (43), a crank (44) and a push rod (45). The hinge seat (41) is fixedly connected to the left and right sides of the support block (3), and the hinge rod (412) is hinged to the hinge seat (41) respectively. The lower end of the three-stage spring (411) is fixedly connected to the upper end of the hinge rod (412), and the upper end of the three-stage spring (411) is fixedly connected to the lower end of the pry rod (43). The support rod (42) is fixedly connected to the upper end surface of the disk (13) on the left and right sides of the support block (3), and the center position of the pry rod (43) is hinged to the upper end of the support rod (42), the upper end of the crank (44) is hinged to the lower end of the push rod (45), and its lower end is hinged to the upper end of the pry rod (43), the upper end of the push rod (45) is located in the secondary circular hole (17), and the upper end of the push rod (45) is an inclined surface structure, and ball grooves (7) with semicircular groove structures are equidistantly provided on the inclined surface of the upper end of the push rod (45), and a limiting ball (71) is fixedly connected to the lower side of the end of the primary movable rod (51); A rectangular groove (6) is provided on the upper end surface of the turntable (15) at the side of the secondary circular hole (17) close to the outer edge of the turntable (15), a pull rod (61) is provided on the left side of the rectangular groove (6), and a cross bar (62) is fixedly connected to the right side surface of the pull rod (61) at the notch position of the upper end of the rectangular groove (6), a limiting rod (63) is provided at the lower end of the rectangular groove (6), and a hinge shaft (64) is fixedly connected to the right side surface of the lower end of the rectangular groove (6) at the position where it communicates with the secondary circular hole (17), and the limiting rod (63) is hinged to the hinge shaft (64), and a spring leaf (65) with its left end tilted downward is fixedly connected equidistantly at the upper position of the left side surface of the push rod (45); A support ring (9) is fixedly connected to the outer edge of the lower end surface of the cavity (11), and a track (91) with an annular groove structure is provided on the upper end surface of the support ring (9), and a track (91) is correspondingly provided on the outer edge of the lower end surface of the disk (13), and a ball (92) is provided between the two tracks (91).

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