CN115414984B

CN115414984B - Test tube rack tray device capable of achieving mechanical self-locking

Info

Publication number: CN115414984B
Application number: CN202211116670.0A
Authority: CN
Inventors: 周亚南; 李英杰; 潘冬宁
Original assignee: Photonic Integration Wenzhou Innovation Research Institute
Current assignee: Photonic Integration Wenzhou Innovation Research Institute
Priority date: 2022-09-14
Filing date: 2022-09-14
Publication date: 2023-06-20
Anticipated expiration: 2042-09-14
Also published as: CN115414984A

Abstract

The invention discloses a test tube rack tray device capable of being mechanically self-locked, which belongs to the technical field of medical appliances, and has the advantages of being capable of accommodating a plurality of samples, simple in structure, high in space utilization rate, easy to extract by a mechanism, unlikely to slide down and the like, and effectively reduces corresponding unlocking electric procedures, improves equipment fault tolerance and safety, and reduces cost. The device comprises: a positioning table; at least one tray structure arranged on the positioning table; the tray structure is provided with a plurality of grooves; the test tube racks are placed in the grooves and correspond to the grooves one by one; each test tube rack can accommodate a plurality of test tubes; the self-locking structure is arranged at the bottom of the tray structure and used for locking the tray structure and the test tube rack when the tray structure is separated from the positioning table and unlocking the tray structure and the test tube rack when the tray structure contacts the positioning table. The invention is used for moving and taking the test tube rack.

Description

Test tube rack tray device capable of achieving mechanical self-locking

Technical Field

The invention relates to a test tube rack tray device capable of being mechanically self-locked, and belongs to the technical field of medical appliances.

Background

Medical institutions typically use large numbers of test tubes to store liquid samples, which typically employ automated equipment to store, transport, detect, and retrieve test tubes to increase work efficiency. The test tube rack is placed in parallel in the tray to be the most common structural unit, and the structural unit is required to meet various requirements of containing a large number of samples, being easy for mechanism extraction, being not easy for the samples to slide down and the like.

The existing test tube rack and tray are complex in structure and low in space utilization rate, or other auxiliary mechanisms such as unlocking devices are needed to facilitate the subsequent mechanical structure to extract the test tube rack in the tray. The matched unlocking device generally adopts an automatic system such as a motor or an air cylinder to realize the freedom of movement in the extraction direction of the test tube rack. The mechanism needs to be provided with one set of trays, the operation process is complicated, an electric control port needs to be added, the equipment is relatively high in use and maintenance cost, the stability is inferior to that of pure mechanical equipment, and the equipment is easily influenced by the running state of an electric and energy system. More seriously, after the tray is unlocked, each test tube rack in the tray is unlocked, and when one test tube rack is extracted, the rest test tube racks can be displaced due to equipment shake, and even slide down from the tray.

Disclosure of Invention

The invention provides a test tube rack tray device capable of mechanically self-locking, which has the advantages of being capable of accommodating a plurality of samples, simple in structure, high in space utilization rate, easy to be extracted by a mechanism, not easy to slide down and the like, effectively reduces corresponding unlocking electric procedures, improves equipment fault tolerance and safety, and reduces cost.

The invention provides a test tube rack tray device capable of being mechanically self-locked, which comprises:

a positioning table;

at least one tray structure arranged on the positioning table; the tray structure is provided with a plurality of grooves;

the test tube racks are arranged in the grooves, and the test tube racks are in one-to-one correspondence with the grooves; each test tube rack can accommodate a plurality of test tubes;

the self-locking structure is arranged at the bottom of the tray structure and is used for locking the tray structure with the test tube rack when the tray structure is separated from the positioning table, and unlocking the tray structure with the test tube rack when the tray structure contacts with the positioning table.

Optionally, a positioning hole is formed in the bottom of the test tube rack;

the self-locking structure comprises:

the two fixed shafts are respectively arranged on two opposite side walls of the bottom of the tray structure in a penetrating way;

the lock catch is in a strip shape, and two ends of the lock catch in the length direction are respectively sleeved on the two fixed shafts and can rotate along the fixed shafts; a plurality of lock teeth protruding upwards are arranged on one long side edge of the lock catch at intervals, and a top tooth protruding downwards is arranged on the other long side edge of the lock catch; the locking teeth correspond to the positioning holes of the test tube racks on the tray structure in position and can extend into the positioning holes;

the two elastic pieces are respectively sleeved on the two fixing shafts, one end of each elastic piece abuts against the bottom surface of the tray structure, and the other end of each elastic piece abuts against the locking surface.

Optionally, the self-locking structure further includes:

the two clamping pieces are respectively sleeved at the tail ends of the two fixing shafts and used for limiting the positions of the corresponding elastic pieces.

Optionally, the positioning table includes:

the surface of the base is provided with a convex rib extending along a first direction, and the convex rib is used for limiting the tray structure in a second direction; the second direction is perpendicular to the first direction;

the plurality of separation plates are arranged on the base side by side along the second direction, and one tray structure is placed between two adjacent separation plates.

Optionally, the positioning table further includes:

the front cover plate is arranged on the side edge of the base along the first direction, a plurality of passage openings are formed in the front cover plate, the passage openings correspond to the test tube racks one by one, and the test tube racks can be extracted from the tray structure through the passage openings.

Optionally, the tray structure includes:

the base is arranged between two adjacent partition plates of the base; the grooves are arranged on the base side by side along the second direction, and the front ends of the grooves are provided with openings; the test tube rack can be moved out of the tray structure through the opening;

the self-locking structure is arranged at the bottom of the base.

Optionally, the tray structure further includes:

the handle is arranged at one end of the base far away from the opening of the groove;

the baffle is arranged above the test tube rack and fixed with the handle and is used for covering and protecting the test tube opening in the test tube rack.

Optionally, the tray structure further includes:

the two elastic positioning columns are respectively arranged on two opposite side walls of the base in a penetrating way, and one end of each elastic positioning column is in contact with the partition plate.

Optionally, the apparatus further includes:

the elastic clamping hooks are arranged at the bottom of the base and correspond to the grooves one by one; one end of the elastic clamping hook is fixed with the bottom of the base, and the other end of the elastic clamping hook is clamped on the end face of the extraction end of the test tube rack.

Optionally, the elastic element is a torsion spring; the clamping piece is a clamping spring.

The invention has the beneficial effects that:

according to the test tube rack tray device capable of mechanically self-locking, provided by the invention, a mechanical self-locking structure is adopted, so that test tubes are not easy to slide off no matter when a sample rack tray leaves a positioning table or a machine vibrates, corresponding unlocking electric procedures are effectively reduced, the fault tolerance rate and the safety of equipment are improved, and the cost is reduced. In addition, the device simple structure can regularly hold more test tubes, and test-tube rack tray space utilization is high to overcome the test-tube rack interval and little, difficult centre gripping's problem.

Drawings

Fig. 1 is a schematic structural diagram of a test tube rack tray device capable of mechanically self-locking according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a positioning table according to an embodiment of the present invention;

FIG. 3 is a schematic view of a tray structure and a self-locking structure according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a self-locking state of the test tube rack tray device according to the embodiment of the invention;

fig. 5 is a schematic diagram of a self-locking state of another view angle of the test tube rack tray device according to the embodiment of the present invention;

fig. 6 is a schematic diagram of an unlocking state of a test tube rack tray device according to an embodiment of the present invention;

fig. 7 is a schematic diagram of a test tube and a test tube rack according to an embodiment of the present invention.

List of parts and reference numerals:

10. a positioning table; 11. a base; 12. a partition plate; 13. a front cover plate; 131. a passage opening; 14. a rib; 20. a tray structure; 21. a base; 22. a groove; 23. a handle; 24. a baffle; 25. an elastic positioning column; 30. a test tube rack; 31. positioning holes; 32. concave holes; 33. an end face; 40. a test tube; 50. a self-locking structure; 51. a fixed shaft; 52. locking; 53. an elastic member; 54. a clamping piece; 60. an elastic hook; 61. and a fixed end.

Detailed Description

The present invention is described in detail below with reference to examples, but the present invention is not limited to these examples.

The embodiment of the invention provides a test tube rack tray device capable of being mechanically self-locked, which comprises the following components in part by weight as shown in fig. 1 to 7: a positioning table 10, at least one tray structure 20, a plurality of test tube racks 30 and a self-locking structure 50. A plurality of tray structures 20 can be placed on the positioning table 10, a plurality of test tubes 40 are placed in the test tube rack 30, and the test tube rack 30 is arranged in parallel in the grooves 22 of the tray structures 20.

Referring to fig. 2, the positioning table 10 includes: a base 11, a plurality of partition plates 12, and a cowl plate 13.

The surface of the base 11 is provided with a rib 14 extending along a first direction, and the rib 14 is used for limiting the tray structure 20 in a second direction; the second direction is perpendicular to the first direction. The base 11 is used for placing and positioning the tray structure 20 back and forth.

The plurality of partition plates 12 are arranged side by side on the base 11 along the second direction, and a tray structure 20 is placed between two adjacent partition plates 12. The partition plates 12 are fixed to the base 11 at intervals for positioning the tray structure 20 left and right.

The front plate 13 is disposed on a side of the base 11 along a first direction, and has a plurality of passage openings 131 formed therein, the passage openings 131 being in one-to-one correspondence with the test tube holders 30, and the test tube holders 30 being extractable from the tray structure 20 through the passage openings 131.

Referring to fig. 3, a tray structure 20 is provided on the positioning table 10; the tray structure 20 is provided with a plurality of grooves 22, the grooves 22 are arranged in one-to-one correspondence with the channel openings 131 of the front cover plate 13, and the test tube rack 30 can be placed in the grooves 22. The tray structure 20 includes: base 21, handle 23 and baffle 24.

The base 21 is disposed between two adjacent partition plates 12 of the base 11; a plurality of grooves 22 are arranged on the base 21 side by side along the second direction, and the front ends of the grooves are provided with openings; the test tube rack 30 can be moved out of the tray structure 20 through the opening; the self-locking structure 50 is provided at the bottom of the base 21.

The handle 23 is provided at an end of the base 21 remote from the opening of the recess 22.

The baffle 24 is arranged above the test tube rack 30 and is fixed with the handle 23 for shielding the opening of the test tube 40 in the test tube rack 30 and preventing the test tube 40 from splashing.

Further, the tray structure 20 further includes: two elastic positioning posts 25 are respectively inserted into two opposite side walls of the base 21, and one end of each elastic positioning post contacts with the partition plate 12 to limit the left and right positions of the tray structure 20.

Referring to fig. 1, 3 and 7, a plurality of test tube racks 30 are placed in the grooves 22, the test tube racks 30 being in one-to-one correspondence with the grooves 22; a plurality of test tubes 40 may be accommodated on each test tube rack 30. The bottom of the test tube rack 30 is provided with a positioning hole 31; the upper surface of the test tube rack 30 is provided with a plurality of concave holes 32 at intervals for placing test tubes 40.

Referring to fig. 3 to 6, the self-locking structure 50 is disposed at the bottom of the tray structure 20, and corresponds to the positioning hole 31 at the bottom of the test tube rack 30, and is used for locking the tray structure 20 with the test tube rack 30 when the tray structure 20 is separated from the positioning table 10, and unlocking the tray structure 20 with the test tube rack 30 when the tray structure 20 contacts the positioning table 10.

The self-locking structure 50 includes: two fixed axles 51, a lock catch 52, two elastic members 53 and two clamping members 54.

The two fixing shafts 51 are respectively penetrated on two opposite side walls of the bottom of the tray structure 20.

The lock catch 52 is in a strip shape, and two ends in the length direction of the lock catch are respectively sleeved on the two fixed shafts 51 and can rotate along the fixed shafts 51; a plurality of lock teeth protruding upwards are arranged on one long side edge of the lock catch 52 at intervals, and a top tooth protruding downwards is arranged on the other long side edge; the locking teeth correspond to the positioning holes 31 of the test tube racks 30 on the tray structure 20, and can extend into the positioning holes 31.

The two elastic pieces 53 are respectively sleeved on the two fixed shafts 51, one end of each elastic piece abuts against the bottom surface of the tray structure 20, and the other end of each elastic piece abuts against the surface of the corresponding lock catch 52, so that the lock catch 52 is limited to act, and the test tube rack 30 is self-locked. In practical applications, the elastic member 53 may be a torsion spring.

The two clamping members 54 are respectively sleeved at the tail ends of the two fixed shafts 51 and are used for limiting the positions of the corresponding elastic members 53. In practical applications, the detent member 54 may be a snap spring.

In an embodiment of the present invention, the apparatus further includes: the elastic hooks 60 are arranged at the bottom of the base 21 and are in one-to-one correspondence with the grooves 22; one end (i.e., the fixed end 61) of the elastic hook 60 is fixed to the bottom of the base 21, and the other end is clamped to the end face 33 of the extraction end of the test tube rack 30. In practical applications, the elastic hook 60 may be an elastic plastic piece, or may be made of other elastic materials, which is not limited in the embodiment of the present invention.

Referring to fig. 4 and 5, when a doctor lifts the tray structure 20, the self-locking structure 50 and the elastic hooks 60 assume a mechanically self-locking state. Specifically, the lock catch 52 of the self-locking structure 50 is inserted into the positioning hole 31 at the bottom of the test tube rack 30 under the elastic force of the torsion spring. The front end limiting hook of the elastic hook 60 hooks the front end face 33 of the test tube rack 30, and the test tube rack 30 is limited in the groove 22 of the base 21, so as to achieve a self-locking state.

Referring to fig. 6, when a doctor puts down the tray structure 20, the base 11 of the positioning table 10 pushes up the top teeth of the lock catch 52 to limit the posture of the self-locking structure 50, the lock catch 52 rotates around the fixed shaft 51 as a center, the lock teeth on the lock catch 52 are separated from the positioning hole 31 at the bottom of the test tube rack 30, and the torsion spring is in a compressed state. At this time, the self-locking structure 50 will be automatically unlocked, and the elastic hook 60 is still in a locked state, so as to limit the movement of the test tube rack 30.

Further, when the downstream mechanism needs to hook the test tube rack 30, the limiting bayonet of the elastic hook 60 will separate from the front end face 33 of the test tube rack 30 under the action of external force until the test tube rack 30 is completely separated from the test tube rack tray device, and the elastic hook 60 will reset under the elastic action. So far, the unlocking state of the test tube rack tray device is realized.

According to the technical scheme, the test tube rack 30 can be mechanically self-locked when the tray structure 20 is lifted, and the test tube rack 30 can be automatically unlocked when placed in the device and cannot move. The technical scheme of the invention has simple structure and can regularly accommodate more test tubes 40; the problems that the test tube rack 30 is small in interval and difficult to clamp are solved, and the space utilization rate of the test tube rack tray is improved; by adopting the mechanical self-locking structure 50, the test tube 40 is not easy to slide off no matter when the sample rack tray leaves the positioning table 10 or the machine vibrates, the corresponding unlocking electric procedure is effectively reduced, the fault tolerance and the safety of the equipment are improved, and the cost is reduced.

It should be noted that, in the embodiment of the present invention, all directional indications (such as up, down, left, right, front, rear, etc.) are merely used to explain the relative positional relationship of the components shown in the drawings, and if the specific posture is changed, the directional indication is correspondingly changed.

Furthermore, references to "first," "second," etc. in this disclosure are for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the indicated technical feature content. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

The foregoing description is only a few examples of the present application and is not intended to limit the present application in any way, and although the present application is disclosed in the preferred examples, it is not intended to limit the present application, and any person skilled in the art may make some changes or modifications to the disclosed technology without departing from the scope of the technical solution of the present application, and the technical solution is equivalent to the equivalent embodiments.

Claims

1. A test tube rack tray device capable of being mechanically self-locked, the device comprising:

a positioning table;

the test tube racks are arranged in the grooves, and the test tube racks are in one-to-one correspondence with the grooves; each test tube rack can accommodate a plurality of test tubes; the bottom of the test tube rack is provided with a positioning hole;

the self-locking structure is arranged at the bottom of the tray structure and used for locking the tray structure with the test tube rack when the tray structure is separated from the positioning table and unlocking the tray structure with the test tube rack when the tray structure contacts with the positioning table;

the self-locking structure comprises:

2. The device of claim 1, wherein the self-locking structure further comprises:

3. The apparatus of claim 1, wherein the positioning stage comprises:

4. The apparatus of claim 3, wherein the positioning stage further comprises:

5. A device according to claim 3, wherein the tray structure comprises:

the self-locking structure is arranged at the bottom of the base.

6. The apparatus of claim 5, wherein the tray structure further comprises:

7. The apparatus of claim 5, wherein the tray structure further comprises:

8. The apparatus of claim 5, wherein the apparatus further comprises:

9. The device of claim 2, wherein the elastic member is a torsion spring; the clamping piece is a clamping spring.