CN215415470U - Clamping mechanism, separation and combination device and sample analyzer - Google Patents
Clamping mechanism, separation and combination device and sample analyzer Download PDFInfo
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- CN215415470U CN215415470U CN202120991308.2U CN202120991308U CN215415470U CN 215415470 U CN215415470 U CN 215415470U CN 202120991308 U CN202120991308 U CN 202120991308U CN 215415470 U CN215415470 U CN 215415470U
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Abstract
The utility model relates to a clamping mechanism, a separation and combination device and a sample analyzer. The clamping mechanism includes: the clamping assembly comprises a first clamping piece, a second clamping piece, a first rotating piece, a second rotating piece and a guide piece, wherein the first clamping piece is connected with the first end of the first rotating piece, the second clamping piece is connected with the first end of the second rotating piece, and the guide piece is used for limiting the first clamping piece and the second clamping piece to move; the second end of the first rotating piece and the second end of the second rotating piece are both connected with the pushing assembly; the first driving assembly is used for driving the pushing assembly to move along the first direction, and when the pushing assembly moves along the first direction, the second end of the first rotating piece and the second end of the second rotating piece can be pulled, and the first rotating piece and the second rotating piece rotate so as to enable the first clamping piece and the second clamping piece to move to be close to each other. The clamping mechanism can stably clamp the workpiece to be clamped, so that the workpiece is not easy to fall off.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to a clamping mechanism, a separation and combination device and a sample analyzer.
Background
In clinical medicine, blood is generally detected by collecting, centrifuging, opening a cover, inspecting, covering, storing, sterilizing and other processing steps. Wherein, when uncapping and adding with lid, need earlier the pipe cap centre gripping, thereby it realizes separating pipe cap and body or stopper tight for the body motion again. In the prior art, there are some mechanisms for clamping the tube cap, including a clamping mechanism, a rotating mechanism, and the like. Wherein, among the prior art's fixture, drive its two clamping jaws through drive assembly and rotate towards the inboard, pierce the pjncture needle on the clamping jaw with inclination and pierce the pipe cap in, if the pipe cap is thicker pjncture needle probably can't pierce the pipe cap, or pierce the degree of depth less, lead to clamping stability poor, the pipe cap drops easily.
SUMMERY OF THE UTILITY MODEL
Based on the above, the utility model provides a clamping mechanism which can stably clamp a to-be-clamped piece and enables the to-be-clamped piece not to fall off easily.
Clamping mechanism for clamping a member to be clamped, comprising:
the clamping assembly comprises a first clamping piece, a second clamping piece, a first rotating piece, a second rotating piece and a guide piece, wherein the first clamping piece is connected with the first end of the first rotating piece, the second clamping piece is connected with the first end of the second rotating piece, and the guide piece is used for limiting the first clamping piece and the second clamping piece to move;
the second end of the first rotating piece and the second end of the second rotating piece are both connected with the pushing assembly;
the first driving assembly is used for driving the pushing assembly to move along the first direction, when the pushing assembly moves along the first direction, the second end of the first rotating piece and the second end of the second rotating piece can be pulled, and the first rotating piece and the second rotating piece rotate to enable the first clamping piece and the second clamping piece to move to be close to each other.
In one embodiment, a first clamping groove is formed in the first end of the first rotating member, the first clamping member comprises a first connecting rod, the first connecting rod is located in the first clamping groove, and when the first rotating member rotates, the first connecting rod can be abutted by the first clamping groove and slides in the first clamping groove;
the first end that the second rotated the piece is equipped with the third draw-in groove, and the second holder includes the second connecting rod, and the second connecting rod is located the third draw-in groove, and when the second rotated the piece and rotated, the second connecting rod can be supported by the third draw-in groove and hold and slide in the third draw-in groove.
In one embodiment, the first connecting rod is sleeved with a first bearing, and the first clamping groove is abutted against the first connecting rod through the first bearing;
the second connecting rod is sleeved with a third bearing, and the third clamping groove is abutted to the second connecting rod through the third bearing.
In one embodiment, the first rotating member and the second rotating member are both parts with included angles at two ends.
In one embodiment, the pushing assembly includes a supporting portion, the second end of the first rotating member is provided with a second slot, the second end of the second rotating member is provided with a fourth slot, and the supporting portion is located in the second slot and the fourth slot.
In one embodiment, the abutting portion is sleeved with a second bearing, and the abutting portion abuts against the second slot and the fourth slot through the second bearing.
In one embodiment, the clamping assembly further includes a first rotating shaft, a second rotating shaft and a clamping assembly housing, the first rotating shaft and the second rotating shaft are both disposed in the clamping assembly housing, the first rotating member is rotatably connected to the first rotating shaft, and the second rotating member is rotatably connected to the second rotating shaft.
In one embodiment, the first holding part comprises a first piercing part and the second holding part comprises a second piercing part, the first piercing part and the second piercing part being used for piercing the part to be held.
In one embodiment, the clamping assembly further comprises a stop block, the stop block is arranged between the first clamping member and the second clamping member, the stop block is provided with a containing cavity, a first through hole and a second through hole, the containing cavity is used for containing the to-be-clamped member, the first puncturing part can penetrate through the first through hole to enter the containing cavity, and the second puncturing part can penetrate through the second through hole to enter the containing cavity.
In one embodiment, the first clamping member includes a first sawtooth portion, the second clamping member includes a second sawtooth portion, and the first sawtooth portion and the second sawtooth portion are used for abutting against the member to be clamped.
In one embodiment, the pushing assembly comprises a pushing member and a moving seat, the first driving assembly drives the moving seat to move along a first direction through the pushing member, the moving seat is provided with a notch, the peripheral surface of the pushing member is provided with a first boss and a second boss, and the notch is clamped between the first boss and the second boss.
In one embodiment, the clamping assembly further comprises a clamping assembly housing, the guide member comprises a first slide rail and a first slide block, one of the first slide rail and the first slide block is connected with the clamping assembly housing, the other one of the first slide rail and the first slide block is connected with the first clamping member, and the first slide block can slide along the first slide rail;
the guide part further comprises a third slide rail and a third slide block, one of the third slide rail and the third slide block is connected with the clamping component shell, the other one of the third slide rail and the third slide block is connected with the second clamping part, and the third slide block can slide along the third slide rail.
In one embodiment, the clamping assembly further comprises a first guide slot and a second guide slot, the first guide slot and the second guide slot both extending along the second direction, the first clamping member is capable of sliding along the first guide slot, and the second clamping member is capable of sliding along the second guide slot.
In one embodiment, the clamping assembly further comprises a clamping assembly housing, a second slide rail and a second slide block, wherein one of the second slide rail and the second slide block is connected with the clamping assembly housing, and the other one of the second slide rail and the second slide block is connected with the pushing assembly.
According to the clamping mechanism, the first driving assembly drives the pushing assembly to move along the first direction, so that the second end of the first rotating piece and the second end of the second rotating piece are pulled, the first rotating piece and the second rotating piece are rotated, the first end of the first rotating piece drives the first clamping piece to move due to the guiding limit of the guiding piece on the first clamping piece and the second clamping piece, the first end of the second rotating piece drives the second clamping piece to move, and the first clamping piece moves and the second clamping piece moves and gradually approaches to the to-be-clamped piece so as to clamp the to-be-clamped piece. In the process, the rotation of the first rotating part and the second rotating part is converted into the movement of the first clamping part and the second clamping part due to the limiting effect of the guide part, namely, the clamping of the clamping parts in the horizontal direction is realized, the downward component force of the pipe cap during inclined clamping is eliminated, the clamping stability is improved, and the part to be clamped is not easy to fall off.
The utility model provides a separating and combining device which is used for separating or combining a to-be-clamped piece and a main body piece.
In one embodiment, the moving mechanism is used to drive the body piece closer to or away from the clamping mechanism.
In one embodiment, the separating and combining device further comprises a third driving member, the third driving member is connected with the clamping assembly, and the clamping assembly can rotate around the first direction under the driving of the third driving member.
In one embodiment, the first driving assembly includes a first driving member and a second driving member, the second driving member is an elastic member disposed between the first driving member and the pushing assembly, the first driving member is used for pushing the pushing assembly to move in a direction opposite to the first direction, and the elastic member is used for driving the pushing assembly to move in the first direction.
In one embodiment, the separating and combining device further comprises a rotating element, the third driving element drives the rotating element to rotate through the synchronous belt assembly, and the rotating element is connected with the clamping assembly.
In one embodiment, the push assembly passes through the rotating member.
In one embodiment, the member to be clamped is a test tube cap, and the main body member is a test tube body.
Above-mentioned deciliter device, through using aforementioned clamping mechanism, will treat holder and main part separation or combination in-process, treat that the centre gripping of holder is more stable, treat that the holder is difficult for dropping.
The utility model provides a sample analyzer which comprises the separation and combination device.
Above-mentioned sample analyzer, through using aforementioned deciliter device, will treat holder and main part separation or combination in-process, treat the centre gripping of holder more stable, treat that the holder is difficult for dropping.
Drawings
FIG. 1 is a schematic view of the overall structure of a clamping mechanism according to an embodiment of the present invention;
FIG. 2 is a front view of the clamping mechanism of FIG. 1 (with parts such as the second driver omitted);
FIG. 3 is a schematic view of a portion of the clamping mechanism shown in FIG. 1 (omitting components such as the first driving member);
FIG. 4 is a cross-sectional view of the clamping mechanism of FIG. 1;
FIG. 5 is a cross-sectional view of the clamping mechanism of FIG. 1 in another orientation;
FIG. 6 is a schematic structural view of the clamping assembly of FIG. 1 (with a portion of the clamping assembly housing omitted);
fig. 7 is a schematic view of the clamping assembly shown in fig. 1 at another angle (with a portion of the clamping assembly housing omitted).
Reference numerals:
a first driving member 100, a first output shaft 110, a fixing ring 120;
the pushing member 210, the first boss 211, the second boss 212, the annular groove 213, the moving seat 220, the abutting portion 221, the second bearing 222 and the notch 223;
the clamping device comprises a clamping component 300, a clamping component housing 310, a first clamping piece 320, a first plate 321, a second plate 322, a first connecting rod 323, a first bearing 324, a first puncturing part 325, a second clamping piece 330, a third plate 331, a fourth plate 332, a second connecting rod 333, a second puncturing part 334, a first rotating piece 340, a first clamping groove 341, a second clamping groove 342, a second rotating piece 350, a third clamping groove 351, a fourth clamping groove 352, a connecting plate 360, a first guide groove 361, a second guide groove 362, a first rotating shaft 371, a second rotating shaft 372, a stopper 380, an accommodating cavity 381, a first through hole 382, a second through hole 383, a first slide rail 391, a first slide block 392, a second slide rail 393 and a second slide block 394;
a third driver 400, a second output shaft 410;
a synchronous belt assembly 500, a driving pulley 510, a driven pulley 520, a belt 530;
a rotary member 610, a key 620, a linear bearing 630;
a housing 710, a lower end cap 720, an upper end cap 730, and an elastic member 740.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the description of the present invention, it is to be understood that the terms "central," "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 are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Referring to fig. 1, 2, 6 and 7, a clamping mechanism according to an embodiment of the present invention includes a first driving assembly, a pushing assembly and a clamping assembly 300. The first driving assembly drives the clamping assembly 300 to move through the pushing assembly to realize the clamping function. The clamping assembly 300 includes a first clamping member 320, a second clamping member 330, a first rotating member 340, a second rotating member 350, a guiding member, and the like. The first rotating member 340 has a first end connected to the first clamping member 320 and a second end connected to the pushing assembly. Similarly, the second rotating member 350 is connected to the second clamping member 330 at a first end and to the pushing member at a second end. The guiding member is used for limiting and guiding the first clamping member 320 and the second clamping member 330, so that the first clamping member 320 and the second clamping member 330 can only move in a horizontal plane. When the pushing assembly is driven by the first driving assembly to move along the first direction, the second end of the first rotating member 340 and the second end of the second rotating member 350 connected to the pushing assembly are pulled, so that the first rotating member 340 and the second rotating member 350 rotate. Due to the limitation of the guide member to the first clamping member 320 and the second clamping member 330, when the first rotating member 340 and the second rotating member 350 rotate, the first rotating member 340 will drive the first clamping member 320 connected to the first end thereof to move in the horizontal plane, the second rotating member 350 will drive the second clamping member 330 connected to the first end thereof to move in the horizontal plane, and the first clamping member 320 and the second clamping member 330 move towards the inner side in the horizontal plane to gradually approach each other. In the above embodiment, the first clamping member 320 and the second clamping member 330 move to gradually approach and clamp the to-be-clamped member, and compared with some existing methods of inclined clamping through rotation of the clamping members, the clamping stability of the vertical clamping method is better, and the to-be-clamped member is not easy to drop.
Specifically, the first rotating member 340 has a first end slidably connected to the first clamping member 320, and a second end slidably connected to the pushing assembly. The second rotating member 350 has a first end slidably connected to the second clamping member 330 and a second end slidably connected to the pushing member. The guiding member is used for limiting and guiding the first clamping member 320 and the second clamping member 330, so that the first clamping member 320 and the second clamping member 330 can only move along the second direction. When the pushing assembly is driven by the first driving assembly to move along the first direction, the second end of the first rotating member 340 and the second end of the second rotating member 350, which are slidably connected to the pushing assembly, are pulled, so that the first rotating member 340 and the second rotating member 350 rotate oppositely. When the first rotating member 340 and the second rotating member 350 rotate in opposite directions, the first rotating member 340 will drive the first clamping member 320 slidably connected to the first end thereof to move in the second direction, the second rotating member 350 will drive the second clamping member 330 slidably connected to the first end thereof to move in the second direction, and the moving directions of the first clamping member 320 and the second clamping member 330 in the second direction are opposite. Referring to the drawings, in the angle of the drawings, the first end of the first rotating member 340 is the lower end thereof, and the second end is the upper end thereof, and similarly, the first end of the second rotating member 350 is the lower end thereof, and the second end is the upper end thereof. The first direction is upward direction in the vertical direction, and the second direction is horizontal direction. In other embodiments, a plurality of clamping members and rotating members may be provided, each clamping member is connected to one rotating member, and the rotation of each rotating member drives the corresponding clamping member to move inward in the horizontal plane to realize clamping. For example, three clamping pieces are provided, the three clamping pieces are uniformly distributed in a horizontal plane, and a clamping space is formed among the three clamping pieces. When the three rotating parts are pushed by the pushing assembly to rotate, each rotating part can drive one clamping part connected with the rotating part to move towards the inner side in the horizontal plane, so that the clamping space is gradually reduced until the three clamping parts are all abutted against the to-be-clamped part, and clamping is realized. In some embodiments, each clamp is vertically level. In other embodiments, the positions of the individual clamps in the vertical direction may also be staggered, for example, one slightly above the other.
In some embodiments, the pushing assembly includes a pushing member 210 and a moving seat 220 connected to a bottom end of the pushing member 210, and the first driving assembly drives the moving seat 220 to move through the pushing member 210. Specifically, the movable base 220 is clamped with the pushing member 210, for example, a first boss 211 and a second boss 212 are arranged on the circumferential surface of the pushing member 210 near the bottom end, an annular groove 213 is formed between the first boss 211 and the second boss 212, a notch 223 is arranged on the movable base 220, and the notch 223 is clamped in the annular groove 213 between the first boss 211 and the second boss 212. The movable seat 220 and the pushing member 210 can be connected by other clamping structures. Of course, the movable seat 220 and the pushing member 210 may be fixed by other means, such as welding or bonding.
Referring to fig. 4, 6 and 7, in some embodiments, the first rotating member 340 and the second rotating member 350 are the same in shape and are symmetrically disposed, and both are parts having a certain angle between two ends. The first rotating member 340 has a first engaging groove 341 at a lower end thereof and a second engaging groove 342 at an upper end thereof. The second rotating member 350 has a third engaging groove 351 at a lower end thereof and a fourth engaging groove 352 at an upper end thereof. The movable base 220 is provided with an outward extending support portion 221. The first rotating member 340 and the second rotating member 350 are disposed in a staggered manner along the axial direction of the abutting portion 221, the abutting portion 221 sequentially passes through the second engaging groove 342 and the fourth engaging groove 352 along the axial direction, and the abutting portion 221 can slide in the second engaging groove 342 and the fourth engaging groove 352. The first clamping member 320 includes a first connecting bar 323, and the second clamping member 330 includes a second connecting bar 333. The first connecting rod 323 passes through the first locking groove 341 along the axial direction thereof, the second connecting rod 333 passes through the third locking groove 351 along the axial direction thereof, and the first connecting rod 323 is slidable in the first locking groove 341, and the second connecting rod 333 is slidable in the third locking groove 351.
When the first driving assembly drives the moving base 220 to move upward through the pushing member 210, the abutting portion 221 slides in the second engaging groove 342 and the fourth engaging groove 352 and abuts against the groove walls of the second engaging groove 342 and the fourth engaging groove 352, so as to pull the upper ends of the first rotating member 340 and the second rotating member 350, so that the first rotating member 340 rotates counterclockwise around the first rotating shaft 371, and the second rotating member 350 rotates clockwise around the second rotating shaft 372. When the first rotating member 340 rotates counterclockwise, the first engaging groove 341 slides relative to the first connecting rod 323 and abuts against the first connecting rod 323, so that the first clamping member 320 moves toward the second clamping member 330. When the second rotating member 350 rotates clockwise, the third engaging groove 351 slides relative to the second connecting rod 333 and abuts against the second connecting rod 333, so that the second clamping member 330 moves toward the first clamping member 320. When the distance between the first clamping member 320 and the second clamping member 330 is reduced to a certain extent, the clamping and fixing of the members to be clamped can be realized.
When the first driving assembly drives the moving base 220 to move downwards through the pushing member 210, the abutting portion 221 slides in the second engaging groove 342 and the fourth engaging groove 352 and abuts against the groove walls of the second engaging groove 342 and the fourth engaging groove 352, so as to push the upper ends of the first rotating member 340 and the second rotating member 350, so that the first rotating member 340 rotates clockwise around the first rotating shaft 371, and the second rotating member 350 rotates counterclockwise around the second rotating shaft 372. When the first rotating member 340 rotates clockwise, the first engaging groove 341 slides relative to the first connecting rod 323 and abuts against the first connecting rod 323, so that the first clamping member 320 moves away from the second clamping member 330. When the second rotating member 350 rotates counterclockwise, the third engaging groove 351 will slide relative to the second connecting rod 333 and abut against the second connecting rod 333, so that the second clamping member 330 moves away from the first clamping member 320. The distance between the first clamping member 320 and the second clamping member 330 is increased, and the clamping fixation of the members to be clamped is released.
Preferably, the sizes of the second engaging groove 342 and the fourth engaging groove 352 are slightly larger than the abutting portion 221, the size of the first engaging groove 3411 is slightly larger than the first connecting rod 323, and the size of the third engaging groove 351 is slightly larger than the second connecting rod 333, so as to prevent the components from being locked when sliding.
Preferably, the first connecting rod 323 is sleeved with a first bearing 324, and the first engaging groove 341 abuts against the first connecting rod 323 through the first bearing 324. Through setting up the bearing, can slow down the wearing and tearing of part, prolong its life. Similarly, the second connecting rod 333 is also sleeved with a bearing, which is not described in detail herein.
Preferably, two second bearings 222 are sleeved on the abutting portion 221, and the abutting portion 221 abuts against the second locking groove 342 through one of the second bearings 222, and abuts against the fourth locking groove 352 through the other second bearing 222. Through setting up the bearing, can slow down the wearing and tearing of part, prolong its life.
In some embodiments, the exterior of the clamp assembly 300 is provided with a clamp assembly housing 310 for protecting the various components disposed therein. The first and second rotating shafts 371 and 372 pass through the clamping unit housing 310, and bushings are provided at ends of the first and second rotating shafts 371 and 372 to position them. The first rotating member 340 is sleeved on the first rotating shaft 371, and the first rotating member 340 and the first rotating shaft 371 are connected through a bearing, and the first rotating member 340 can rotate around the first rotating shaft 371; the second rotating member 350 is sleeved on the second rotating shaft 372 and connected to the second rotating shaft 372 through a bearing, and the second rotating member 350 can rotate around the second rotating shaft 372.
The bottom end of the clamping assembly housing 310 is fixedly connected to the connecting plate 360, and in some embodiments, the guiding member comprises a first sliding rail 391 and a first sliding block 392, which are slidably connected, one of the first sliding rail 391 and the first sliding block 392 is connected to the connecting plate 360 and further connected to the clamping assembly housing 310, and the other is connected to the first clamping member 320. When the first clamping member 320 moves horizontally, the first slider 392 can slide along the first sliding rail 391 to guide, so that the first clamping member 320 can only move horizontally, and the stability of the movement is improved. Similarly, a slide rail and a slide block are also disposed between the second clamping member 330 and the connecting plate 360, and are not described herein again.
Further, the connecting plate 360 is provided with two first guide grooves 361 and two second guide grooves 362 extending along the horizontal direction, the two first guide grooves 361 are arranged at intervals, and the two second guide grooves 362 are arranged at intervals. The first holder 320 is slidable along the first guide groove 361, and the second holder 330 is slidable along the second guide groove 362. Specifically, the first clamping member 320 includes a first plate 321 and a second plate 322 extending upward, the first plate 321 and the second plate 322 are respectively located in the two first guide grooves 361, and the first plate 321 and the second plate 322 are connected by a first connecting rod 323. The second clamping member 330 includes a third plate 331 and a fourth plate 332 protruding upward, the third plate 331 and the fourth plate 332 are respectively located in the two second guide grooves 362, and the third plate 331 and the fourth plate 332 are connected by a second connecting rod 333. The first plate 321 and the second plate 322 are guided by the two first guide grooves 361. Similarly, the third plate 331 and the fourth plate 332 are guided by two second guide grooves 362.
Preferably, first clamping member 320 includes a first piercing portion 325 projecting toward second clamping member 330, and second clamping member 330 includes a second piercing portion 334 projecting toward first clamping member 320. If the member to be clamped is a soft component such as rubber or silica gel, the first piercing part 325 and the second piercing part 334 will pierce into the member to be clamped from both sides when the first clamping member 320 and the second clamping member 330 approach each other gradually. The penetration of the first penetrating part 325 and the second penetrating part 334 can enhance the stability of clamping and fixing the clamping piece, so that the clamping piece is not easy to fall off.
Preferably, a stopper 380 is further disposed on the connecting plate 360, and the stopper 380 is located between the first clamping member 320 and the second clamping member 330. An accommodating cavity 381 is formed in the block 380 and is used for accommodating a member to be clamped. The block 380 is further provided with a first through hole 382 and a second through hole 383, which are communicated with the accommodating cavity 381, wherein the first through hole 382 is located at one side close to the first clamping member 320, and the second through hole 383 is located at one side close to the second clamping member 330. When the first and second clamps 320 and 330 are gradually moved closer, the first piercing part 325 may pass through the first through hole 382 and enter the receiving cavity 381, and the second piercing part 334 may pass through the second through hole 383 and enter the receiving cavity 381. When waiting that the holder no longer need be by the centre gripping, first holder 320 keeps away from with second holder 330 gradually, and first puncture portion 325 withdraws from holding chamber 381 from first through-hole 382, and second puncture portion 334 withdraws from holding chamber 381 from second through-hole 383, treats the holder through holding chamber 381 and carries out spacing hindrance, can make first puncture portion 325, second puncture portion 334 smooth with treat the holder separation, make and treat that the holder can accomplish the blanking smoothly, be difficult for being glued on first puncture portion 325 or second puncture portion 334.
Or, in other embodiments, a first sawtooth portion may be disposed on the first clamping member 320, a second sawtooth portion is disposed on the second clamping member 330, and when the first clamping member 320 and the second clamping member 330 gradually approach each other, the first sawtooth portion and the second sawtooth portion abut against the member to be clamped to clamp the member to be clamped. The friction force of the clamping part can be increased by arranging the saw tooth parts, so that the clamping part is enhanced to clamp and fix the clamping part, and the clamping part is not easy to drop.
Preferably, a second slide rail 393 and a second slide block 394 are slidably connected, one of the second slide rail 393 and the second slide block 394 is connected to the clamping assembly housing 310, and the other is connected to the movable base 220. When the movable base 220 moves up and down, the second slider 394 can slide along the second sliding rail 393 to be guided, thereby improving the stability of the movement.
Referring to fig. 1 and fig. 2, in some embodiments, the combining and combining device includes the clamping mechanism in any of the above embodiments, the to-be-clamped piece can be clamped and fixed by the clamping mechanism, and a moving mechanism is further provided, and the to-be-clamped piece and the main body piece are driven to relatively approach or separate by the moving mechanism, so as to achieve combining or separating.
In some embodiments, the to-be-clamped member may be a test tube cap, the main body member may be a test tube body, and the test tube cap is a rubber plug. When the test tube cap and the test tube body are combined by using the splitting and combining device, the test tube cap is clamped by the clamping mechanism, so that the test tube cap and the test tube body move relatively to be close to each other, and the test tube cap is plugged into the test tube body. When the test tube cap is separated from the test tube body by using the splitting and combining device, the test tube cap is clamped by the clamping mechanism, so that the test tube cap and the test tube body move away from each other relatively, and the test tube cap is pulled out from the test tube body. The following describes the coupling and separation device by taking a test tube cap and a test tube body as examples.
As mentioned above, the test tube cap is clamped and fixed by the clamping mechanism, and preferably, the test tube body is connected with the moving mechanism, and the test tube body is driven by the moving mechanism to approach or depart from the clamping mechanism. Compare with centre gripping test tube cap and drive test tube cap removal and keep away from the mode of test tube body, separate the centre gripping action with the removal action in this embodiment, accomplish by two part structures respectively, can avoid the structure of test tube cap one side too complicated.
Referring to fig. 1, 2 and 4, in some embodiments, the first driving assembly includes a first driving member 100 and a second driving member, the first driving member 100 is a linear motor or an air cylinder, and the second driving member is an elastic member 740 disposed between the first driving member 100 and the pushing member 210. The first driving member 100 is used for pushing the pushing member 210 to move downwards, and the elastic member 740 is used for driving the pushing member 210 to move upwards. Specifically, a lower end cap 720 and an upper end cap 730 are arranged below the first driving member 100, the upper end cap 730 is arranged above the lower end cap 720, the elastic member 740 is arranged between the lower end cap 720 and the upper end cap 730 and sleeved on the lower end cap 720 and the upper end cap 730, and the top end of the pushing member 210 is fixedly connected with the upper end cap 730. In a specific embodiment, the first driving member 100 is a linear motor, and a fixing ring 120 is sleeved on the bottom end of the first output shaft 110, and the fixing ring 120 can be used for mounting the optical coupling sensing piece. The bottom end of the first output shaft 110 is in contact with the upper end cap 730 but is not fixed. The elastic member 740 is under compression, and the upper end cap 730 will be pressed against the bottom end of the first output shaft 110 under the driving of its resilience.
When the first output shaft 110 of the linear motor moves downward, the upper end cap 730 is pushed to move downward, and the pushing member 210 is driven to move downward together, so that the elastic member 740 is compressed. As can be seen from the above, when the pushing member 210 moves downward, the distance between the first clamping member 320 and the second clamping member 330 increases, and the clamping and fixing of the test tube cap is released. After the first output shaft 110 of the linear motor moves upward and returns to its original position, the upper end cap 730 moves upward under the driving of the resilience of the elastic member 740, and drives the pushing member 210 to move upward together. As can be seen from the foregoing, when the pushing element 210 moves upward, the distance between the first clamping member 320 and the second clamping member 330 decreases, so as to clamp and fix the test tube cap.
Referring to fig. 2 to 5, in some embodiments, the separating and combining device further includes a third driving member 400 fixed to the housing 710, the third driving member 400 is connected to the clamping assembly 300, and the clamping assembly 300 can rotate around the vertical direction under the driving of the third driving member 400. So, can make the test tube cap rotate along with centre gripping subassembly 300 is synchronous, when filling in the test tube body or following the test tube body with the test tube cap and extract, through rotating the test tube cap, can make it change in and fill in or extract, reduce the separation and make up the degree of difficulty.
In some embodiments, the separation and combination device further comprises a rotating member 610, the rotating member 610 is connected to the clamping assembly 300, and the third driving member 400 drives the rotating member 610 to rotate through the timing belt assembly 500, and further drives the clamping assembly 300 to rotate.
Specifically, the synchronous belt assembly 500 includes a driving pulley 510, a driven pulley 520, and a belt 530, wherein the driving pulley 510 and the driven pulley 520 are sleeved with the belt 530, and the driving pulley 510 is connected to the second output shaft 410 of the third driving element 400 and can be driven by the third driving element 400 to rotate. The rotary member 610 is disposed inside the driven pulley 520, and is connected thereto by a key 620. When the third driving member 400 drives the driving pulley 510 to rotate, the driven pulley 520 drives the rotating member 610 to rotate synchronously through the key 620. The lower cover 720 is located above the driven pulley 520, and the top of the rotating member 610 is fixedly connected to the lower cover 720 and the bottom thereof is fixedly connected to the clamping assembly housing 310. The pushing member 210 passes through the rotary member 610 and is fixedly connected with the upper end cap 730. Preferably, a linear bearing 630 is provided between the pusher 210 and the rotator 610 to reduce friction. As previously described, the notch 223 in the moving seat 220 is captured between the annular grooves 213 in the pusher 210. If the friction between the annular groove 213 and the notch 223 is small, the movable seat 220 and the pushing member 210 can rotate relatively. When the third driving member 400 drives the clamping assembly 300 to rotate, the moving seat 220 rotates synchronously therewith, and the pushing member 210 can remain stationary, i.e. the moving seat 220 rotates relative to the pushing member 210. If the friction between the annular groove 213 and the notch 223 is large, the movable seat 220 and the pushing member 210 cannot rotate relatively, which is equivalent to a fixed connection therebetween. When the third driving member 400 drives the clamping assembly 300 to rotate, the movable base 220 rotates synchronously therewith, and drives the pushing member 210 to rotate together with the upper end cap 730.
In some embodiments, the sample analyzer includes the separation and combination device in any of the above embodiments, and has the advantages of any of the above embodiments.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (22)
1. Clamping mechanism for pressing from both sides tightly treat the holder, its characterized in that includes:
the clamping assembly comprises a first clamping piece, a second clamping piece, a first rotating piece, a second rotating piece and a guide piece, the first clamping piece is connected with the first end of the first rotating piece, the second clamping piece is connected with the first end of the second rotating piece, and the guide piece is used for limiting the first clamping piece and the second clamping piece to move;
the second end of the first rotating piece and the second end of the second rotating piece are both connected with the pushing assembly;
the first driving assembly is used for driving the pushing assembly to move along a first direction, when the pushing assembly moves along the first direction, the second end of the first rotating piece and the second end of the second rotating piece can be pulled, and the first rotating piece and the second rotating piece rotate to enable the first clamping piece and the second clamping piece to move to be close to each other.
2. The clamping mechanism as claimed in claim 1, wherein the first end of the first rotating member is provided with a first engaging groove, the first clamping member includes a first connecting rod, the first connecting rod is located in the first engaging groove, and when the first rotating member rotates, the first connecting rod can be abutted by the first engaging groove to slide in the first engaging groove;
the first end that the second rotated the piece is equipped with the third draw-in groove, the second holder includes the second connecting rod, the second connecting rod is located the third draw-in groove, works as the second rotated the piece and rotates, the second connecting rod can by the third draw-in groove supports to hold and is in the third draw-in groove slides.
3. The clamping mechanism as claimed in claim 2, wherein a first bearing is sleeved on the first connecting rod, and the first engaging groove abuts against the first connecting rod through the first bearing;
the second connecting rod is sleeved with a third bearing, and the third clamping groove is abutted to the second connecting rod through the third bearing.
4. The clamping mechanism as recited in claim 1, wherein said first rotating member and said second rotating member are both members having an included angle at both ends.
5. The clamping mechanism according to claim 4, wherein the pushing member includes a supporting portion, the second end of the first rotating member is provided with a second engaging groove, the second end of the second rotating member is provided with a fourth engaging groove, the supporting portion is located in the second engaging groove and the fourth engaging groove, and when the pushing member moves, the supporting portion slides in the second engaging groove and the fourth engaging groove and supports against the second engaging groove and the fourth engaging groove, so that the first rotating member and the second rotating member rotate.
6. The clamping mechanism as claimed in claim 5, wherein a second bearing is sleeved on the abutting portion, and the abutting portion abuts against the second slot and the fourth slot through the second bearing.
7. The clamping mechanism as claimed in claim 1, wherein the clamping assembly further comprises a first rotating shaft, a second rotating shaft and a clamping assembly housing, the first rotating shaft and the second rotating shaft are both disposed through the clamping assembly housing, the first rotating member is rotatably connected to the first rotating shaft, and the second rotating member is rotatably connected to the second rotating shaft.
8. The clamping mechanism of claim 1 wherein said first clamping member includes a first piercing portion and said second clamping member includes a second piercing portion, said first piercing portion and said second piercing portion being configured to pierce said member to be clamped.
9. The clamping mechanism as claimed in claim 8, wherein the clamping assembly further comprises a stopper, the stopper is disposed between the first clamping member and the second clamping member, the stopper is provided with a receiving cavity, a first through hole and a second through hole, the receiving cavity is used for receiving the clamping member, the first puncturing part can pass through the first through hole to enter the receiving cavity, and the second puncturing part can pass through the second through hole to enter the receiving cavity.
10. The clamping mechanism as recited in claim 1, wherein said first clamping member includes a first serrated portion and said second clamping member includes a second serrated portion, said first and second serrated portions being configured to abut said member to be clamped.
11. The clamping mechanism according to claim 1, wherein the pushing assembly includes a pushing member and a moving seat, the first driving assembly drives the moving seat to move along the first direction via the pushing member, the moving seat is provided with a notch, a first boss and a second boss are provided on a peripheral surface of the pushing member, and the notch is clamped between the first boss and the second boss.
12. The clamping mechanism of claim 1, wherein said clamping assembly further comprises a clamping assembly housing, said guide comprising a first slide track and a first slide block, one of said first slide track and said first slide block coupled to said clamping assembly housing and the other of said first slide track and said first clamping member, said first slide block being slidable along said first slide track;
the guide part further comprises a third slide rail and a third slide block, one of the third slide rail and the third slide block is connected with the clamping component shell, the other one of the third slide rail and the third slide block is connected with the second clamping part, and the third slide block can slide along the third slide rail.
13. The clamping mechanism of claim 1, wherein said clamping assembly further comprises a first guide slot and a second guide slot, said first guide slot and said second guide slot each extending in a second direction, said first clamping member being slidable along said first guide slot and said second clamping member being slidable along said second guide slot.
14. The clamping mechanism of claim 1, wherein said clamping assembly further comprises a clamping assembly housing, a second slide rail and a second slide block, one of said second slide rail and said second slide block being coupled to said clamping assembly housing and the other of said second slide rail and said second slide block being coupled to said pushing assembly.
15. Deciliter device for with treat holder and main part separation or combination, its characterized in that includes: the clamping mechanism of any one of claims 1 to 14, further comprising a moving mechanism for driving the member to be clamped and the body member to move relative to each other.
16. A manifold assembly according to claim 15 wherein the displacement means is arranged to drive the body members towards and away from the clamping means.
17. A clutching device according to claim 15, further comprising a third drive member, the third drive member being connected to the clamping assembly, the clamping assembly being able to rotate about the first direction under the drive of the third drive member.
18. The dividing and combining device according to claim 17, wherein the first driving assembly includes a first driving member and a second driving member, the second driving member is an elastic member disposed between the first driving member and the pushing assembly, the first driving member is configured to push the pushing assembly to move in a direction opposite to the first direction, and the elastic member is configured to drive the pushing assembly to move in the first direction.
19. A manifold assembly according to claim 18 and further comprising a rotation member, said third drive member driving said rotation member to rotate via a timing belt assembly, said rotation member being connected to said clamping assembly.
20. A manifold assembly according to claim 19 wherein said push assembly passes through said rotatable member.
21. A split-combination device according to claim 15, wherein the member to be clamped is a test tube cap and the main body member is a test tube body.
22. A sample analyzer, comprising: a clutch according to any one of claims 15 to 21.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120991308.2U CN215415470U (en) | 2021-05-10 | 2021-05-10 | Clamping mechanism, separation and combination device and sample analyzer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120991308.2U CN215415470U (en) | 2021-05-10 | 2021-05-10 | Clamping mechanism, separation and combination device and sample analyzer |
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| CN215415470U true CN215415470U (en) | 2022-01-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114874878A (en) * | 2022-07-11 | 2022-08-09 | 浙江金仪盛世生物工程有限公司 | Support frame with two clamping states and biological reaction device |
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2021
- 2021-05-10 CN CN202120991308.2U patent/CN215415470U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114874878A (en) * | 2022-07-11 | 2022-08-09 | 浙江金仪盛世生物工程有限公司 | Support frame with two clamping states and biological reaction device |
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