CN218213052U - Sample cell crimping placement system - Google Patents

Abstract

The utility model discloses a sample cell crimping placing system, sample cell crimping placing system includes: the sample tube comprises a body part and a connecting part which are connected in the axial direction of the sample tube, and a positioning groove which is concave towards the inner side of the connecting part is formed in the outer peripheral wall of the connecting part; the placing rack comprises an elastic telescopic clamping part matched with the positioning groove. According to the utility model discloses a sample cell crimping placing system realizes support and the automatic positioning to the sample cell through flexible joint portion, and the sample cell of being convenient for is placed on the rack, improves assembly efficiency. Meanwhile, the elastic telescopic clamping part plays a certain buffering role on the sample tube, so that the sample tube is prevented from being damaged, and the reliability of the sample tube crimping and placing system is improved.

Description

Sample cell crimping placement system

Technical Field

The utility model relates to a sample analysis equipment technical field especially relates to a sample cell crimping placement system.

Background

Sample analysis equipment will typically involve sample tubes. In the prior art, the sample tubes are mostly installed and positioned in a manual mode, the operation proficiency of experimenters is high, and the assembly efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a sample cell crimping placing system, sample cell crimping placing system passes through the support and the automatic positioning of the flexible joint portion realization of elasticity to the sample cell, raises the efficiency.

According to the utility model discloses sample cell crimping placing system, include: a sample tube including a body portion and a connection portion connected in an axial direction of the sample tube, the connection portion having a positioning groove on an outer peripheral wall thereof recessed toward an inside of the connection portion; the placing rack comprises an elastic telescopic clamping part matched with the positioning groove.

According to the utility model discloses sample cell crimping placing system sets up sample cell and rack, and the sample cell includes this somatic part and the connecting portion of connecting in the axial direction of sample cell, has on the periphery wall of connecting portion towards the inboard recessed positioning groove of connecting portion, the rack include with positioning groove complex elastic expansion joint portion, the sample cell is placed at the in-process of rack, through elastic expansion joint portion realize support and the automatic positioning to the sample cell, the sample cell of being convenient for is placed on the rack, improves assembly efficiency. Meanwhile, the elastic telescopic clamping part plays a certain buffering role on the sample tube, so that the sample tube is prevented from being damaged, and the reliability of the sample tube crimping and placing system is improved.

In some embodiments of the present invention, the elastic expansion joint portion includes: the clamping part support is provided with a placing hole for placing the sample tube, and the peripheral wall of the placing hole is provided with a through hole penetrating through the peripheral wall of the placing hole; the clamping column is movably arranged in the through hole in a penetrating mode, and two ends of the clamping column in the length direction are located on the outer side of the through hole; the clamping nut is connected to one end, far away from the placing hole, of the clamping column and used for limiting the clamping column to move towards the inside of the placing hole; the positioning clamp joint is connected to one end, located in the placing hole, of the clamping column and used for being matched with the positioning groove; and the second elastic piece is used for driving the positioning clamping head to move towards the center of the placing hole.

In some embodiments of the present invention, the second elastic member is disposed between the positioning clip head and the clip portion bracket; and/or the second elastic piece is sleeved on the clamping column.

The utility model discloses an in some embodiments, the through-hole is for following the circumference direction spaced apart a plurality of placing the hole, every the through-hole is all followed the radial direction of sample cell extends, every all be equipped with one in the through-hole the joint post, every the both ends of joint post are connected with respectively the joint nut with the locator card connects.

In some embodiments of the present invention, the placing hole has a placing gap, and the placing gap is disposed between two adjacent through holes.

In some embodiments of the present invention, the radial cross section of the positioning groove is arc-shaped, and the positioning clamp joint is spherical and matches with the radial cross section of the positioning groove.

In some embodiments of the present invention, the positioning groove extends in a circumferential direction of the connecting portion in a ring shape or in a plurality of circumferential directions of the connecting portion at intervals.

The utility model discloses an in some embodiments, be equipped with support protrusion on the periphery wall of connecting portion, the rack still includes: and the supporting part is abutted against the lower surface of the supporting bulge and is used for supporting the sample tube.

In some embodiments of the present invention, the support protrusion extends in a ring shape along a circumferential direction of the connecting portion or the support protrusion is a plurality of protrusions spaced apart along the circumferential direction of the connecting portion; and/or the support portion includes one support block and is formed in an open loop shape or the support portion includes a plurality of support blocks spaced apart in a circumferential direction of the connection portion.

In some embodiments of the present invention, the hardness of the connecting portion is greater than the hardness of the body portion.

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

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a cross-sectional view of a sample tube according to an embodiment of the present invention;

fig. 2 is a sectional view of an elastic expansion clip part according to an embodiment of the present invention;

fig. 3 is a cross-sectional view of a self-locking gas circuit joint according to an embodiment of the present invention;

fig. 4 is a partial cross-sectional view of a sample tube crimp placement system according to an embodiment of the present invention;

fig. 5 is a cross-sectional view of another state of a sample tube crimp placement system in accordance with an embodiment of the present invention;

FIG. 6 is an enlarged view at A in FIG. 4;

fig. 7 is an enlarged view at B in fig. 5.

Reference numerals:

1. a sample tube; 11. a body portion; 12. a connecting portion; 121. an opening; 122. a positioning groove; 123. a support boss; 124. positioning the projection;

2. an airtight crimping head; 21. a joint rigid backbone; 211. the gas path is connected with the side wall; 2111. a fitting section; 2112. a drive section; 2113. a gas path connecting port; 212. a hermetic plug mounting post; 2121. anti-skid projections; 2131. a first jack; 2132. a second jack; 2141. a gas transmission channel; 2142. an exhaust passage; 22. an elastic airtight plug; 221. an anti-slip groove; 23. a gas delivery pipe; 24. an exhaust pipe; 25. crimping a transmission rod;

3. a self-locking gas circuit joint; 31. a connector body; 311. an equipment extension gas circuit; 3111. a first air receiving port; 312. connecting pipe blind holes; 3121. a telescopic limiting groove; 313. a fabrication hole; 314. an airtight bolt; 32. a telescopic connecting pipe; 321. a second air receiving port; 322. a telescopic limit bulge; 323. a guide slope; 33. a first elastic member; 34. a limiting spiral ring;

4. placing a rack; 41. an elastic expansion clamping part; 411. a clamping part bracket; 4111. placing holes; 4112. a through hole; 4113. placing a gap; 412. a clamping column; 413. clamping a nut; 414. positioning the clamp joint; 415. a second elastic member; 42. a support portion; 421. a first support block; 4211. a support step; 422. a second support block.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

A sample tube crimp placement system 100 in accordance with an embodiment of the present invention is described below with reference to the accompanying drawings.

As shown in fig. 1, fig. 2, fig. 4, fig. 5 and fig. 7, a sample tube crimping and placing system 100 according to an embodiment of the present invention includes a sample tube 1 and a placing rack 4. The sample tube 1 includes a body portion 11 and a connecting portion 12 connected in an axial direction of the sample tube 1, a positioning groove 122 recessed toward an inner side of the connecting portion 12 is formed on an outer peripheral wall of the connecting portion 12, and the holder 4 includes an elastic expansion clamping portion 41 engaged with the positioning groove 122.

It can be understood that, this somatic part 11 of sample cell 1 is used for holding the sample that awaits measuring, sample cell 1 is placed positioning groove 122 extrusion elastic expansion joint portion 41 through connecting portion 12 at rack 4's in-process, make elastic expansion joint portion 41 compressed so that positioning groove 122 and 41 joints of elastic expansion joint portion, because elastic expansion joint portion 41 is compressed and is produced the elastic force towards sample cell 1, make positioning groove 122 and 41 joints of elastic expansion joint portion more firm, and positioning groove 122's the fastness that sets up the reinforcing joint, thereby realize support and the automatic positioning to sample cell 1 through elastic expansion joint portion 41, be convenient for sample cell 1 places on rack 4, and the assembly efficiency is improved, the fixed reliability of sample cell 1 has been guaranteed in addition. In addition, in the process of placing the sample tube 1, the elastic telescopic clamping part 41 has a certain buffering effect on the sample tube 1, so that the sample tube 1 is prevented from being damaged, and the reliability of the sample tube crimping and placing system 100 is improved.

In this application, rack 4 can set up on sample analysis equipment, because the flexible joint portion 41 of elasticity is to the automatic positioning of sample cell 1, can make sample cell 1 and sample analysis equipment automatic crimping through automated equipment, further raises the efficiency. It should be noted that the sample analysis device includes, but is not limited to, a specific surface area detector, a pore size analyzer, a gas adsorption apparatus, and the like.

According to the utility model discloses sample cell crimping placing system 100, set up sample cell 1 and rack 4, sample cell 1 includes this somatic part 11 and connecting portion 12 of connecting in sample cell 1's axial direction, have on the periphery wall of connecting portion 12 towards the inboard recessed positioning groove 122 of connecting portion 12, rack 4 includes with positioning groove 122 complex elastic expansion joint portion 41, sample cell 1 places the in-process at rack 4, realize support and the automatic positioning to sample cell 1 through elastic expansion joint portion 41, be convenient for sample cell 1 places on rack 4, and the assembly efficiency is improved. Meanwhile, the elastic telescopic clamping part 41 has a certain buffering effect on the sample tube 1, so that the sample tube 1 is prevented from being damaged, and the reliability of the sample tube crimping and placing system 100 is improved.

In some embodiments of the present invention, as shown in fig. 2, the elastic and retractable clip portion 41 includes a clip portion bracket 411, a clip column 412, a clip nut 413, a positioning clip joint 414 and a second elastic member 415. Wherein, joint portion support 411 has the hole 4111 of placing that is used for placing sample cell 1, be equipped with the through-hole 4112 that runs through the perisporium of placing hole 4111 on the perisporium of placing hole 4111, joint post 412 movably wears to locate in through-hole 4112 and the both ends of the length direction of joint post 412 all are located the through-hole 4112 outside, joint nut 413 is connected in the one end of keeping away from placing hole 4111 of joint post 412, be used for injecing joint post 412 and remove towards placing hole 4111, positioning clamp connects the one end that is located in placing hole 4111 of joint post 412, be used for cooperating with positioning groove 122, second elastic component 415 is used for driving positioning clamp joint 414 and removes towards the center of placing hole 4111.

It can be understood that, during the process that the sample tube 1 enters the placing hole 4111, the positioning groove 122 abuts against the positioning clip head 414, and the positioning groove 122 presses the positioning clip head 414 to overcome the elastic force of the second elastic member 415 to push the clip column 412 to move towards the direction away from the placing hole 4111, so as to clip the positioning groove 122 and the elastic retractable clip portion 41. When the clamping column 412 moves towards a direction away from the placing hole 4111, the second elastic member 415 elastically deforms, so that the second elastic member 415 generates an elastic force towards the center of the placing hole 4111, the positioning clamp connector 414 is firmly fixed in the positioning groove 122, the positioning groove 122 and the positioning clamp connector 414 are clamped more firmly, and the sample tube 1 is ensured to be located at the center of the placing hole 4111. Meanwhile, the clamping column 412 in the placing hole 4111 is limited by the clamping nut 413, the second elastic piece 415 and the positioning clamp joint 414, so that the clamping column 412 is prevented from falling from the through hole 4112, and the reliability of the sample tube crimping placing system 100 is improved. Optionally, the locator card connector 414 and the card post 412 are one piece.

In some embodiments of the present invention, the second elastic member 415 is disposed between the positioning clip joint 414 and the clip portion bracket 411. It is understood that the second elastic member 415 is provided between the positioning bayonet joint 414 and the bayonet portion bracket 411, and the second elastic member 415 is conveniently arranged, so that the second elastic member 415 is compressed when the positioning groove 122 presses the positioning bayonet joint 414 to push the bayonet post 412 to move away from the mounting hole 4111, thereby generating an elastic force toward the center of the mounting hole 4111 to firmly fix the positioning bayonet joint 414 in the positioning groove 122;

in some embodiments of the present invention, the second elastic member 415 is sleeved on the clamping column 412, and the second elastic member 415 is fixed by such a configuration, so as to avoid the second elastic member 415 from dropping, thereby improving the reliability of the elastic expansion clamping portion 41.

In some embodiments of the present invention, as shown in fig. 2, the second elastic member 415 is disposed between the positioning card connector 414 and the clamping portion bracket 411, and the second elastic member 415 is sleeved on the clamping post 412, thereby facilitating the setting and fixing of the second elastic member 415, when the clamping post 412 moves towards the direction away from the placing hole 4111, the second elastic member 415 generates elastic deformation, so that the second elastic member 415 generates elastic force towards the center of the placing hole 4111, so that the positioning card connector 414 is firmly fixed in the positioning groove 122, so that the positioning groove 122 and the positioning card connector 414 are firmly clamped, thereby improving the reliability of the elastic expansion clamping portion 41.

In some embodiments of the present invention, as shown in fig. 2, the through hole 4112 is a plurality of through holes 4112 spaced apart along the circumferential direction of the placing hole 4111, each through hole 4112 extends along the radial direction of the sample tube 1, each through hole 4112 is provided with a joint column 412, and the two ends of each joint column 412 are connected to the joint nut 413 and the positioning clamp joint 414, respectively. Accordingly, the second elastic members 415 are a plurality corresponding to the clip columns 412 one by one, and each second elastic member 415 is disposed between the corresponding positioning clip head 414 and the clip portion bracket 411 and is sleeved on the clip column 412. The reliability of automatic positioning of the elastic telescopic clamping part 41 is further ensured through the arrangement.

It can be understood that the positioning card connectors 414 are further prevented from being separated from the positioning grooves 122 by the cooperation of the positioning card connectors 414 and the positioning grooves 122, so as to ensure the supporting and positioning effects of the elastic telescopic clamping portion 41 on the sample tube 1, and improve the reliability of the sample tube crimping and placing system 100.

It should be noted that fig. 2 shows four through holes 4112 for illustrative purposes, but it is obvious to those skilled in the art after reading the following technical solutions that the solution can be applied to two, three or more through holes 4112, which also falls within the protection scope of the present invention.

In some embodiments of the present invention, as shown in fig. 2, the placing hole 4111 has a placing notch 4113, and the placing notch 4113 is disposed between two adjacent through holes 4112. It can be understood that, sample tube 1 places the in-process at rack 4, and sample tube 1 is through placing breach 4113 along the radial direction entering of placing hole 4111 and placing hole 4111, and the placing of sample tube 1 of being convenient for avoids moving sample tube 1 to axial one side of placing hole 4111 and along the axial direction of placing hole 4111 placing sample tube 1 in placing hole 4111. In addition, the notch 4113 is arranged between two adjacent through holes 4112, so that the number of the through holes 4112 is reduced due to the fact that the notch 4113 is arranged, and the positioning and supporting effect on the sample tube 1 is reduced.

In some embodiments of the present invention, as shown in fig. 1 and 2, the radial cross section of the positioning groove 122 is circular arc, and the positioning clip joint 414 is spherical matching with the radial cross section of the positioning groove 122. Through the arrangement, the friction and the collision between the positioning groove 122 and the positioning clamping joint 414 are reduced in the process of placing the sample tube 1 on the placing frame 4, and the placing stability and the placing reliability of the sample tube 1 are further ensured.

In some embodiments of the present invention, the positioning groove 122 extends in a ring shape along the circumferential direction of the connecting portion 12 or a plurality spaced apart along the circumferential direction of the connecting portion 12. For example, in the example shown in fig. 1, the positioning groove 122 extends in an annular shape along the circumferential direction of the connecting portion 12, the supporting and automatic positioning of the sample tube 1 are realized through the cooperation of such annular positioning groove 122 and the elastic telescopic clamping portion 41, and the arrangement of the annular positioning groove 122 enables the process of placing the sample tube 1 on the placing frame 4 to be not limited by an angle, which further facilitates the placing of the sample tube 1 on the placing frame 4.

Of course, the utility model discloses be not limited to this, positioning groove 122 still can be for a plurality of along the spaced apart of the circumferential direction of connecting portion 12, and when positioning block joint 414 is a plurality of, positioning block joint 414's quantity and positioning groove 122's quantity one-to-one, positioning block joint 414 is injectd in corresponding positioning groove 122, can inject sample tube 1 and rotate along the circumferential direction, guarantees the fixed reliability of sample tube 1.

In some embodiments of the present invention, as shown in fig. 1, fig. 2 and fig. 7, the outer peripheral wall of the connecting portion 12 is provided with a supporting protrusion 123, and the placing frame 4 further includes a supporting portion 42. The supporting portion 42 is abutted against the lower surface of the supporting protrusion 123 for supporting the sample tube 1. The sample tube 1 on the rack 4 is further supported by the lower surface (the vertical direction is the first direction in fig. 4) of the supporting protrusion 123 and the supporting portion 42, so as to ensure the reliability of fixing the sample tube 1.

In some embodiments of the present invention, the support protrusion 123 extends in a ring shape along the circumferential direction of the connecting portion 12 or the support protrusion 123 is a plurality spaced apart along the circumferential direction of the connecting portion 12; and/or, the support portion 42 includes one support block and is formed in an open loop shape or the support portion 42 includes a plurality of support blocks spaced apart in a circumferential direction of the connecting portion 12.

It can be understood that the supporting protrusion 123 extends in a ring shape along the circumferential direction of the connecting portion 12, the supporting portion 42 includes a supporting block and is formed in an open ring shape, the sample tube 1 on the rack 4 is further supported by the matching of the lower surface of the ring-shaped supporting protrusion 123 and the ring-shaped supporting block, and the arrangement is such that the process of placing the sample tube 1 on the rack 4 is not limited by the angle;

or, the supporting protrusion 123 extends in a ring shape along the circumferential direction of the connecting portion 12, the supporting portion 42 includes a plurality of supporting blocks spaced along the circumferential direction of the connecting portion 12, the sample tube 1 on the rack 4 is further supported by the cooperation of the lower surface of the ring-shaped supporting protrusion 123 and the plurality of supporting blocks, and the cost is reduced by such an arrangement;

or, the supporting protrusions 123 are a plurality of ones spaced apart along the circumferential direction of the connecting portion 12, the supporting portion 42 includes a supporting block and is formed in an open ring shape, the sample tubes 1 on the rack 4 are further supported by the matching of the lower surfaces of the supporting protrusions 123 and the ring-shaped supporting block, and the arrangement is such that the process of placing the sample tubes 1 on the rack 4 is not limited by the angle;

or, the supporting protrusions 123 are spaced apart along the circumferential direction of the connecting portion 12, the supporting portion 42 includes a plurality of supporting blocks spaced apart along the circumferential direction of the connecting portion 12, the sample tubes 1 on the rack 4 are further supported by the cooperation of the lower surfaces of the supporting protrusions 123 and the supporting blocks, and such an arrangement reduces the cost. Further, the number of the supporting protrusions 123 corresponds to the number of the supporting blocks.

In the embodiment where the supporting portion 42 includes a plurality of supporting blocks spaced apart in the circumferential direction of the connecting portion 12, as shown in fig. 6, the supporting portion 42 may include a first supporting block 421 and a second supporting block 422 which are oppositely disposed, supporting steps 4211 are respectively disposed on surfaces of the first supporting block 421 and the second supporting block 422 facing each other, and a minimum distance between the supporting step 4211 on the first supporting block 421 and the supporting step 4211 on the second supporting block 422 is smaller than an outer diameter of the supporting protrusion 123 and greater than or equal to an inner diameter of the supporting protrusion 123. Guarantee to have certain clearance between sample cell 1 and the supporting part 42 when guaranteeing to support sample cell 1 that is located on rack 4 through such setting, further avoid influencing the automatic positioning of flexible joint 41 to sample cell 1.

In some embodiments of the present invention, the hardness of the connecting portion 12 is greater than the hardness of the body portion 11. It can be understood that, when sample tube 1 is applied to sample analysis equipment and is examined, the sample is located body 11, improves sample tube 1 crimping process's reliability through such setting, avoids the too big sample tube 1 of leading to of crimping power to take place the damage, and simultaneously, the hardness of connecting portion 12 is greater than body 11 and can reduces the risk that causes the damage because of sample tube 1 internal pressure is too big when the experiment as far as possible, improves sample tube 1's reliability.

Further, the main body 11 is made of glass, and the connection portion 12 is made of metal. It can be understood that the glass material can reduce the air release phenomenon as much as possible when the sample tube 1 is in a vacuum environment, so that an accurate experimental result can be obtained, the metal material can ensure the structural strength of the connecting part 12, and the reliability of the crimping process of the sample tube 1 is improved. It should be noted that the body portion 11 and the connecting portion 12 are connected by gluing or welding.

In some embodiments of the present invention, as shown in fig. 1, 4-7, the sample tube crimping placement system 100 further comprises an airtight crimping head 2 and a self-locking gas circuit joint 3. Wherein, sample cell 1 has opening 121, and airtight crimping head 2 is used for with sample cell 1 crimping along first direction is portable, and airtight crimping head 2 has gas circuit connection lateral wall 211, has gas circuit connector 2113 on the gas circuit connection lateral wall 211, and auto-lock gas circuit connector 3 is equipped with the equipment of intercommunication sample analysis equipment gas circuit and extends gas circuit 311.

Specifically, in the process of placing the sample tube 1 on the placing frame 4, the positioning of the sample tube 1 is realized through the elastic telescopic clamping part 41.

During the process of crimping the sample tube 1 by the airtight crimping head 2, the opening 121 of the sample tube 1 faces the airtight crimping head 2, and the airtight crimping head 2 moves towards the opening 121 in the first direction to crimp the sample tube 1 by the airtight crimping head 2, so that the airtightness of the sample tube 1 is ensured.

Because the equipment extension gas path 311 is communicated with the gas path of the sample analysis equipment, when the airtight crimping head 2 is in the crimping position with the sample tube 1, the self-locking gas path connector 3 is attached to the gas path connecting side wall 211, and the gas path connector 2113 is communicated with the equipment extension gas path 311, so that gas output by the gas path of the sample analysis equipment enters the sample tube 1 through the equipment extension gas path 311 and the gas path connector 2113, or gas in the sample tube 1 is discharged to the gas path of the sample analysis equipment through the gas path connector 2113 and the equipment extension gas path 311, and further, when the airtight crimping head 2 is in the crimping position with the sample tube 1, the communication of the gas path between the sample analysis equipment and the sample tube 1 is realized, when the airtight crimping head 2 is not in the crimping position with the sample tube 1, the communication of the gas path between the sample analysis equipment and the sample tube 1 is interrupted, and further, the automatic on-off gas of the sample tube crimping placing system 100 is realized, which is beneficial to automation of the sample tube crimping placing system 100, and the efficiency is improved.

Simultaneously, because 3 rigidity of auto-lock gas circuit connector, only airtight crimping head 2 removes at the in-process of airtight crimping head 2 crimping sample cell 1 to avoid equipment to extend the winding or knot that the gas circuit 311 removed and cause, and make equipment to extend the length of gas circuit 311 and can shorten as far as possible, thereby reduce equipment and extend remaining gas volume in the gas circuit 311, and then promote the precision of experimental result.

In some embodiments of the present invention, as shown in fig. 3-7, the self-locking gas circuit connector 3 includes a connector body 31 and a telescopic connection tube 32. Wherein, equipment extends gas circuit 311 and locates and connects body 31, and flexible takeover 32 is located and connects body 31 and just set up towards airtight crimping head 2, and flexible takeover 32 has the elasticity of the outside motion of body 31 towards connecting, and the external diameter of flexible takeover 32 is greater than the bore of gas circuit connector 2113, and equipment extends gas circuit 311 has first gas receiver 3111, and flexible takeover 32 has second gas receiver 321.

As shown in fig. 3, 4 and 6, when the telescopic connection tube 32 is naturally extended, the first air inlet 3111 and the second air inlet 321 are displaced from each other, and at this time, the airtight pressure welding head 2 is not in the pressure welding position with the syringe 1, and there is no communication between the telescopic connection tube 32 and the device extension air passage 311, that is, there is no communication between the air passage connection port 2113 and the device extension air passage 311.

As shown in fig. 3, 5 and 7, when the airtight crimping connector 2 is in the crimping position with the sample tube 1, the air passage connecting side wall 211 is engaged with the connector body 31 and presses the expansion joint 32 into the connector body 31, the first air receiving port 3111 and the second air receiving port 321 are communicated with each other, and at this time, the expansion joint 32 is communicated with the device extension air passage 311, so that the air passage connecting port 2113 is communicated with the device extension air passage 311 when the airtight crimping connector 2 is in the crimping position with the sample tube 1. Specifically, the gas output by the gas path of the sample analysis device enters the sample tube 1 through the device extension gas path 311, the first gas receiving port 3111, the second gas receiving port 321, the telescopic connection tube 32 and the gas path connection port 2113, or the gas in the sample tube 1 is discharged to the gas path of the sample analysis device through the gas path connection port 2113, the telescopic connection tube 32, the second gas receiving port 321, the first gas receiving port 3111 and the device extension gas path 311, so that the gas path between the sample analysis device and the sample tube 1 is communicated.

After the experiment, airtight crimping head 2 moves towards the direction of keeping away from sample cell 1, and at this moment, flexible takeover 32 stretches out from connecting in the body 31, and first gas connection 3111 and second gas connection 321 misplace each other to the closure device extends gas circuit 311, and the intercommunication is interrupted between sample analytical equipment and the sample cell 1.

Thus, automatic on/off of the sample tube crimping placement system 100 is achieved.

Meanwhile, the outer diameter of the telescopic connection pipe 32 is larger than the caliber of the air path connection port 2113, when the airtight crimping connector 2 is located at the crimping position with the sample tube 1, the telescopic connection pipe 32 can be prevented from extending into the air path connection port 2113, so that the airtight crimping connector 2 is prevented from being blocked by the telescopic connection pipe 32 when moving towards the direction away from the sample tube 1 after the experiment is finished, the damage of the telescopic connection pipe 32 or the airtight crimping connector 2 is avoided, and the reliability of the sample tube crimping and placing system 100 is guaranteed.

It should be noted that the specific structure of the self-locking air path connector 3 may be flexibly set according to actual conditions, for example, the self-locking air path connector 3 may further be provided with an electric control valve or an infrared switch, and when the airtight crimping connector 2 is located at the crimping position with the sample tube 1, the air path connector 2113 is controlled to be communicated with the equipment extension air path 311 through the electric control valve or the infrared switch, so as to achieve automatic air on/off of the sample tube crimping and placing system 100.

In some embodiments of the present invention, as shown in fig. 3 to 7, a connection blind hole 312 for placing the telescopic connection tube 32 is formed in the connector body 31, the connection blind hole 312 extends along a second direction, the second direction is perpendicular to the first direction, and a first elastic member 33 is disposed between the telescopic connection tube 32 and the blind end of the connection blind hole 312. The telescopic adapter 32 can be made to have elasticity to move towards the outside of the connector body 31, and the automatic on-off of the sample tube crimping and placing system 100 is further ensured through the arrangement of the first elastic piece 33.

Specifically, in the process of crimping the sample tube 1 by the airtight crimping head 2, the airtight crimping head 2 gradually approaches the self-locking gas path connector 3 and extrudes one end of the telescopic connecting tube 32 extending out of the self-locking gas path connector 3, so that the telescopic connecting tube 32 moves towards the first elastic piece 33 and extrudes the first elastic piece 33 in the connecting tube blind hole 312, when the airtight crimping head 2 is in a crimping position with the sample tube 1, as shown in fig. 5 and 7, the connector body 31 is attached to the gas path connecting side wall 211, the gas path connecting port 2113 is opposite to and communicated with the telescopic connecting tube 32, and the first gas receiving port 3111 is communicated with the second gas receiving port 321, so that the gas path connecting port 2113 is communicated with the device extending gas path 311, and further the gas path between the sample analysis device and the sample tube 1 is communicated.

After the experiment, airtight crimping head 2 moves towards keeping away from sample cell 1 direction, because the first elastic component 33 shrink produces the elastic force towards airtight crimping head 2 to promote telescopic connection pipe 32 and move towards airtight crimping head 2 in taking over blind hole 312 so that telescopic connection pipe 32 stretches out, thereby make telescopic connection pipe 32 be in the state of stretching out naturally, first gas receiving port 3111 and second gas receiving port 321 misplace each other, so that communicate between sample analytical equipment and the sample cell 1 and break off.

Further, as shown in fig. 3, the end of the telescopic adapter 32 close to the blind end of the adapter blind hole 312 is a closed end. With this arrangement, the first elastic element 33 is prevented from falling out of the blind nipple hole 312, and the reliability of the movement of the telescopic nipple 32 in the blind nipple hole 312 is ensured.

In some embodiments of the present invention, as shown in fig. 3 and 7, the first air receiving port 3111 is disposed on the sidewall of the connecting pipe blind hole 312, and the second air receiving port 321 is disposed on the peripheral wall of the telescopic connecting pipe 32. It can be understood that, when the airtight crimping connector 2 is in the crimping position with the sample tube 1, the telescopic connection tube 32 is pressed into the connector body 31, the first air receiving port 3111 provided on the side wall of the connection tube blind hole 312 and the second air receiving port 321 provided on the peripheral wall of the telescopic connection tube 32 are opposite and communicated with each other, so that the communication between the telescopic connection tube 32 and the device extension air path 311 is realized, and further, the air path connection port 2113 and the device extension air path 311 are communicated.

Further, as shown in fig. 3, the joint body 31 has a process hole 313, the process hole 313 penetrates through the equipment extension air passage 311 and the connecting pipe blind hole 312, an airtight bolt 314 is disposed at one end of the process hole 313 communicating with the external environment, and a portion of the process hole 313 communicating with the equipment extension air passage 311 and the connecting pipe blind hole 312 is a first air receiving port 3111. It can be understood that the fabrication of the inner structure of the connector body 31, especially the fabrication of the first air receiving port 3111 and the second air receiving port 321, is facilitated by the fabrication of the fabrication hole 313, which reduces the difficulty of fabrication and improves the efficiency. Meanwhile, the airtight bolt 314 is used for plugging the technical hole 313 to ensure the tightness of the self-locking gas circuit connector 3, so as to ensure the tightness of the sample tube crimping and placing system 100.

In some embodiments of the utility model, as shown in fig. 3, be equipped with flexible spacing groove 3121 on the lateral wall of takeover blind hole 312, be equipped with flexible spacing arch 322 on the lateral wall of flexible takeover 32, flexible spacing arch 322 is movably located in flexible spacing groove 3121. The movement stroke of the telescopic connecting pipe 32 in the connecting pipe blind hole 312 is further limited by the matching of the telescopic limiting groove 3121 and the telescopic limiting protrusion 322, and it is further ensured that the first air receiving port 3111 and the second air receiving port 321 are communicated with each other when the airtight crimping head 2 is in the crimping position with the sample tube 1.

In some embodiments of the utility model, as shown in fig. 3, flexible spacing groove 3121 is the ring shape that extends along the circumferential direction of blind hole and is located the open end of takeover blind hole 312, and the outside of flexible spacing groove 3121 is opened, flexible spacing arch 322 be with flexible takeover 32 screw-thread fit's nut, be equipped with spacing volution 34 in the flexible spacing groove 3121, spacing volution 34 is spaced apart with flexible spacing groove 3121's inner, the periphery wall of spacing volution 34 and flexible spacing groove 3121's diapire screw-thread fit.

It can be understood that the arrangement of the limiting screw ring 34 further limits the movement stroke of the telescopic connecting pipe 32 in the connecting pipe blind hole 312, so as to prevent the telescopic connecting pipe 32 from falling from the connecting pipe blind hole 312 during the process that the elastic force of the first elastic member 33 pushes the telescopic connecting pipe 32 to move towards the airtight crimping head 2 in the connecting pipe blind hole 312, and ensure the reliability of the movement of the telescopic connecting pipe 32. Meanwhile, the thread fit of the limiting spiral ring 34 and the telescopic limiting groove 3121 and the thread fit of the telescopic limiting protrusion 322 and the telescopic connecting pipe 32 can change the length of the telescopic connecting pipe 32 extending out of the connector body 31, facilitate the adjustment of the sample tube crimping and placing system 100, improve the universality of the self-locking gas circuit connector 3, and facilitate the processing of the telescopic limiting groove 3121. In addition, flexible spacing groove 3121 is for extending for the setting of ring shape along the circumferential direction of blind hole and when making flexible takeover 32 remove, flexible spacing arch 322 removes more smoothly in flexible spacing groove 3121, further improves the reliability.

In some embodiments of the present invention, as shown in fig. 3, 6 and 7, the gas path connection sidewall 211 includes a fitting section 2111 and a driving section 2112. The air path connecting port 2113 is arranged on the attaching section 2111, and the attaching section 2111 is suitable for attaching to the connector body 31; the driving section 2112 is arranged on one side of the attaching section 2111 close to the sample tube 1, the driving section 2112 is inclined towards the direction far away from the connector body 31 in the direction towards the sample tube 1, the outer peripheral wall of the outer end of the telescopic connecting tube 32 is provided with a guide inclined plane 323 matched with the driving section 2112, the guide inclined plane 323 extends along the circumferential direction of the telescopic connecting tube 32, and the distance between the guide inclined plane 323 and the center of the telescopic connecting tube 32 is gradually increased in the direction from the outer end to the inner end of the telescopic connecting tube 32.

It can be understood that, during the process of crimping the sample tube 1 by the airtight crimping head 2, the airtight crimping head 2 moves towards the sample tube 1, and the driving section 2112 of the air passage connecting side wall 211 presses the guiding inclined plane 323 of the telescopic connection tube 32, so that the telescopic connection tube 32 is pressed into the connection tube blind hole 312, so that the fitting section 2111 fits the connector body 31, and when the airtight crimping head 2 is in a crimping position with the sample tube 1, the air passage connection port 2113 is communicated with the device extension air passage 311. Meanwhile, the driving section 2112 is inclined towards the direction far away from the connector body 31 in the direction towards the sample tube 1, and the distance between the guiding inclined plane 323 and the center of the telescopic connecting tube 32 in the direction from the outer end to the inner end of the telescopic connecting tube 32 is gradually increased, so that the driving section 2112 can further press the guiding inclined plane 323 to press the telescopic connecting tube 32 into the connecting tube blind hole 312, and the reliability of the sample tube crimping and placing system 100 is improved.

In some embodiments of the present invention, as shown in fig. 4-7, the hermetic crimping head 2 includes a joint rigid skeleton 21 and a resilient hermetic plug 22. Wherein, one end of the joint rigid framework 21 is connected to the crimping transmission rod 25, the other end is provided with an airtight plug mounting column 212, the air path connecting side wall 211 is arranged at one end of the joint rigid framework 21 close to the crimping transmission rod 25, and the elastic airtight plug 22 is sleeved outside the airtight plug mounting column 212 and is suitable for being arranged in the opening 121.

It can be understood that the airtight crimping head 2 is driven to move towards the opening 121 of the sample tube 1 by the crimping transmission rod 25 to drive the airtight crimping head to move towards the opening 121 in the first direction so as to gradually enter the elastic airtight plug 22 into the opening 121 until the elastic airtight plug 22 is tightly attached to the inner wall of the sample tube 1, thereby ensuring high airtightness of the sample tube 1. Meanwhile, the arrangement of the elastic airtight plug 22 improves the universality of the airtight crimping connector 2, so that the airtight crimping connector 2 is adaptive to sample tubes 1 of different specifications, and the elastic arrangement of the elastic airtight plug 22 can avoid the damage of the sample tubes 1 caused by overlarge pressure force in the crimping process of the sample tubes 1. In addition, the crimping transmission rod 25 is simple in structure, simple in operation of sealing the sample tube 1 through the airtight crimping head 2, high in fault tolerance rate, capable of improving the overall assembly efficiency of the sample tube crimping and placing system 100 and beneficial to automation of the sample tube crimping and placing system 100.

Alternatively, since the rubber material has elasticity, good insulation, water tightness and air tightness, the rubber is used as the material of the elastic airtight plug 22, so that the opening 121 of the sample tube 1 can be better sealed without leaving a gap between the elastic airtight plug 22 and the sample tube 1.

The setting that connects rigid skeleton 21 further strengthens airtight crimping head 2 bulk strength, improves airtight crimping head 2's reliability, simultaneously, supports elasticity airtight stopper 22 through airtight stopper erection column 212, further guarantees the sealed of elasticity airtight stopper 22 to sample cell 1, and elasticity airtight stopper 22 cover is convenient for dismouting and change between them outside airtight stopper erection column 212.

It should be noted that the crimping transmission rod 25 can be connected with a driving device (not shown in the figure) to drive the airtight crimping head 2 to move towards the opening 121 of the sample tube 1, the driving device includes but is not limited to a cylinder drive, a driving mode of combining a motor and a gear transmission mechanism, or a driving mode of combining a motor and a screw transmission mechanism; or directly by manually driving the crimp drive rod 25 to drive the airtight crimp head 2 towards the opening 121 of the sample tube 1.

In some embodiments of the present invention, as shown in fig. 7, the outer peripheral wall of the airtight plug mounting column 212 is provided with anti-slip protrusions 2121, and the inner peripheral wall of the elastic airtight plug 22 is provided with anti-slip grooves 221 cooperating with the anti-slip protrusions 2121. The cooperation of the anti-slip protrusions 2121 and the anti-slip grooves 221 ensures that the airtight plug mounting column 212 is reliably connected with the elastic airtight plug 22, so that the elastic airtight plug 22 is effectively prevented from falling off, and meanwhile, the cooperation of the anti-slip protrusions 2121 and the anti-slip grooves 221 prevents gas from leaking out from the gap between the elastic airtight plug 22 and the airtight plug mounting column 212, so that the high sealing performance of the sample tube 1 is further ensured.

Further, as shown in fig. 7, the nonslip protrusion 2121 is formed in a ring shape extending in the circumferential direction of the cylinder 212, and the nonslip protrusion 2121 is plural spaced apart in the axial direction of the cylinder, and the nonslip groove 221 is in a ring shape extending in the circumferential direction of the elastic cylinder 22 and plural in one-to-one correspondence with the plural nonslip protrusions 2121. By such an arrangement, the reliability of the connection between the plunger mounting post 212 and the resilient plunger 22 is further improved, and the leakage of gas from the gap between the resilient plunger 22 and the plunger mounting post 212 is further avoided, further improving the reliability of the syringe crimping and placing system 100.

In some embodiments of the present invention, as shown in fig. 4, fig. 5 and fig. 7, the airtight crimping connector 2 further includes an air pipe 23 and an exhaust pipe 24, one end of the air pipe 23 and one end of the exhaust pipe 24 are inserted into the connector rigid frame 21, and the air pipe 23 and the exhaust pipe 24 pass through the elastic airtight plug 22 and are communicated with the inside of the sample tube 1.

It can be understood that, in the process that the crimping transmission rod 25 drives the airtight crimping head 2 to move towards the opening 121 of the sample tube 1, the gas transmission pipe 23 and the gas exhaust pipe 24 extend into the sample tube 1 and are communicated with the inside of the sample tube 1, when the airtight crimping head 2 is in a crimping position with the sample tube 1, the self-locking gas circuit connector 3 is attached to the gas circuit connecting side wall 211, and the gas circuit connector 2113 is communicated with the device extension gas circuit 311, so that gas output by the gas circuit of the sample analysis device enters the sample tube 1 through the device extension gas circuit 311, the gas circuit connector 2113 and the gas transmission pipe 23, or gas in the sample tube 1 is discharged to the sample analysis device through the gas exhaust pipe 24, the gas circuit connector 2113 and the device extension gas circuit 311. Meanwhile, the air tightness of the sample tube 1 is ensured by the elastic air-tight plug 22, so that the gas quantity input by the gas pipe 23 and the gas quantity discharged by the gas pipe 24 are accurate, and the accuracy of the detection structure of the sample analyzer applying the sample tube crimping and placing system 100 is ensured.

In some embodiments of the utility model, as shown in fig. 7, be equipped with first jack 2131 and second jack 2132 on the joint rigidity skeleton 21, gas-supply pipe 23 is inserted and is located first jack 2131, blast pipe 24 is inserted and is located second jack 2132, still be equipped with the gas transmission passageway 2141 that communicates with first jack 2131 and the exhaust passage 2142 that communicates with second jack 2132 on the joint rigidity skeleton 21, gas circuit connector 2113 is two and communicates with gas transmission passageway 2141 and exhaust passage 2142 respectively, auto-lock gas circuit connector 3 is two that correspond with two gas circuit connectors 2113.

It can be understood that the gas transmission channel 2141 is communicated with the self-locking gas path joint 3 communicating with the gas transmission path of the sample analysis apparatus through one of the gas path connection ports 2113, and the exhaust channel 2142 is communicated with the self-locking gas path joint 3 communicating with the exhaust path of the sample analysis apparatus through the other gas path connection port 2113. Specifically, when the airtight crimping connector 2 is in a crimping position with the sample tube 1, gas output by the gas path of the sample analysis device is conveyed to the self-locking gas path connector 3 communicated with the airtight crimping connector through the gas conveying gas path and is input into the sample tube 1 through the gas conveying channel 2141 and the gas conveying pipe 23, and gas exhausted from the sample tube 1 is exhausted to the sample analysis device through the exhaust pipe 24, the exhaust channel 2142 and the self-locking gas path connector 3 communicated with the exhaust path of the sample analysis device. Through the arrangement, the gas output by the gas circuit of the sample analysis equipment is input into the sample tube 1, and the gas output by the gas circuit of the sample analysis equipment, which is discharged from the sample tube 1, is not interfered with each other, so that the accuracy of an experimental result is further ensured.

It should be noted that, when auto-lock gas circuit connects 3 be two, because airtight crimping head 2 is used for the crimping with sample cell 1 along the first direction is portable, airtight crimping head 2 has gas circuit connection lateral wall 211, gas circuit connection lateral wall 211 is last to have gas circuit connector 2113, and connect and have the takeover blind hole 312 that is used for placing flexible takeover 32 in the body 31, takeover blind hole 312 extends along the second direction, the second direction is perpendicular with the first direction, a certain direction in the space is not referred to in the above-mentioned second direction specifically, any direction perpendicular with the first direction can be the second direction, two auto-lock gas circuit connects 3 can follow the second direction setting, also can follow the first direction setting, or two auto-lock gas circuit connect 3 dislocation sets.

In some embodiments of the present invention, as shown in fig. 1 and 7, in the direction toward the outside of the opening 121, the cross-sectional area of the opening 121 is gradually increased, the elastic airtight plug 22 is located in the frustum shape of the opening 121, the positioning groove 122 corresponding to the inner peripheral wall of the sample tube 1 has a positioning protrusion 124, the positioning protrusion 124 is located on one side of the opening 121 close to the closed end of the sample tube 1, and the elastic airtight plug 22 is adapted to abut against the positioning protrusion 124.

It can be understood that the gradually increasing cross-sectional area of the opening 121 enables slight deviation in the airtight crimping process of the sample tube 1 not to cause the problem that the elastic airtight plug 22 cannot be aligned with the opening 121 of the sample tube 1, so that the high airtightness of the sample tube 1 is ensured, the fault tolerance is increased, the universality of the airtight crimping head 2 is improved, and the airtight crimping head 2 is adapted to sample tubes 1 of different specifications. In addition, the frustum-shaped elastic airtight plug 22 is matched with the opening 121 with the gradually increased cross-sectional area, so that the elastic airtight plug 22 is more closely attached to the inner wall of the sample tube 1, and the high air tightness of the sample tube 1 is further ensured.

Meanwhile, the compression transmission rod 25 drives the elastic airtight plug 22 to enter the opening 121 and stop against the positioning protrusion 124, and the elastic airtight plug 22 is pressed by the positioning protrusion 124, so that one side of the elastic airtight plug, which faces the positioning protrusion 124, is deformed, thereby further filling the gap between the elastic airtight plug 22 and the sample tube 1, and further ensuring the high airtightness of the sample tube 1. And the positioning protrusion 124 can limit the displacement of the elastic airtight plug 22 in the opening 121, thereby improving the reliability of the sample tube crimping and placing system 100.

In some embodiments of the present invention, the sample tube crimping placement system 100 further comprises a pressure sensor. Wherein, the pressure sensor is used for detecting the pressure welding force of the airtight pressure welding head 2 to the sample tube 1. It can be understood that, because the cross-sectional areas of the openings 121 of the sample tubes 1 of different specifications are different, in the airtight crimping process of the sample tube 1, the crimping transmission rod 25 drives the elastic airtight plug 22 to move towards the opening 121 of the sample tube 1, the crimping force of the airtight crimping head 2 on the sample tube 1 is detected through the pressure sensor, and the crimping transmission rod 25 is controlled to stop driving when the pressure value reaches the threshold value, so that the elastic airtight plug 22 is tightly attached to the inner wall of the sample tube 1, the stroke end point of the elastic airtight plug 22 in the airtight crimping process is judged according to the pressure value detected by the pressure sensor, the sample tube 1 with the overlarge crimping force is prevented from being damaged while the high airtightness of the sample tube 1 is ensured, and the universality of the sample tube crimping placement system 100 is improved.

Further, a pressure sensor may be disposed on the crimping transmission rod 25 or the joint rigid skeleton 21 to ensure that the pressure sensor can detect the crimping force of the airtight crimping joint 2 on the sample tube 1.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A sample tube crimping placement system, comprising:

a sample tube including a body portion and a connection portion connected in an axial direction of the sample tube, the connection portion having a positioning groove on an outer peripheral wall thereof recessed toward an inner side of the connection portion;

the placing rack comprises an elastic telescopic clamping part matched with the positioning groove.

2. The sample tube crimp placement system of claim 1, wherein the resilient, telescoping snap-fit portion comprises:

the clamping part support is provided with a placing hole for placing the sample tube, and the peripheral wall of the placing hole is provided with a through hole penetrating through the peripheral wall of the placing hole;

the clamping column is movably arranged in the through hole in a penetrating mode, and two ends of the clamping column in the length direction are located on the outer side of the through hole;

the clamping nut is connected to one end, far away from the placing hole, of the clamping column and used for limiting the clamping column to move towards the inside of the placing hole;

the positioning clamp joint is connected to one end, located in the placing hole, of the clamping column and used for being matched with the positioning groove;

and the second elastic piece is used for driving the positioning clamping joint to move towards the center of the placing hole.

3. The sample tube crimping and placing system of claim 2, wherein the second elastic member is disposed between the positioning clamp head and the clamp section bracket;

and/or the second elastic piece is sleeved on the clamping column.

4. The sample tube crimping and placing system according to claim 2, wherein the through holes are spaced apart along a circumferential direction of the placing hole, each through hole extends along a radial direction of the sample tube, one clamping column is disposed in each through hole, and both ends of each clamping column are respectively connected with the clamping nut and the positioning clamp connector.

5. Sample tube crimping placement system according to claim 4, characterized in that the placement holes have placement notches provided between two adjacent through holes.

6. The sample tube crimping placement system according to claim 2, wherein the radial cross-section of the positioning groove is circular arc-shaped, and the positioning snap joint is spherical in shape matching the radial cross-section of the positioning groove.

7. Sample tube crimp placement system according to claim 1, wherein the positioning groove extends in a circumferential direction of the connection portion in a ring shape or in a plurality spaced apart in the circumferential direction of the connection portion.

8. The sample tube crimping placement system according to claim 1, wherein a support protrusion is provided on an outer peripheral wall of the connecting portion, the placement frame further comprising:

and the supporting part is abutted against the lower surface of the supporting bulge and is used for supporting the sample tube.

9. Sample tube crimp placement system according to claim 8, wherein the support protrusion extends in a ring shape in a circumferential direction of the connection portion or the support protrusion is a plurality spaced apart in the circumferential direction of the connection portion;

and/or the support portion includes one support block and is formed in an open loop shape or the support portion includes a plurality of support blocks spaced apart in a circumferential direction of the connection portion.

10. A sample tube crimp placement system according to claim 1, wherein the connector portion has a hardness greater than a hardness of the body portion.

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