A test tube lid opening device

Abstract

The invention relates to a test tube cover opening device, comprising a clamping mechanism for clamping and positioning a test tube body and a cover opening mechanism for clamping a test tube cover and rotating to open the cover, characterized in that: the cover opening mechanism comprises a clamping claw component and a transmission component connected to the clamping claw component, when an operator applies an external force, the external force can be transmitted to the clamping claw component via the transmission component, so that each test tube cover clamped by the clamping claw component rotates together, and then the batch cover opening operation is realized; compared with the prior art, the invention has the advantages that the clamping mechanism clamps the test tube, and the cover opening mechanism composed of the transmission component and the clamping claw component performs the batch cover opening operation, so that a large number of test tubes can be opened efficiently, thereby improving the work efficiency, and the structure design is simple and easy to operate.

Description

Technical Field

[0001] The present invention relates to the technical field of experimental auxiliary equipment, and particularly to a test tube opening device. Background Art

[0002] Drug sensitivity test is an experiment to detect the sensitivity of microorganisms or organisms to drugs. When conducting drug sensitivity tests in a laboratory, drug sensitivity test tubes are usually selected to store microorganisms or organisms. However, during the experiment, the opening operation needs to be completed first. When the experiment is a large-scale experiment, a large number of test tubes are required. However, opening each test tube individually manually increases a large amount of work for the experiment operator and reduces the efficiency. For this reason, the Chinese utility model patent with the patent number ZL202021672339.3 discloses "A Test Tube Opening and Closing Device", which includes: a clamping lifting driving part; a clamping rotation driving part connected to the output end of the clamping lifting driving part; and a clamping part, including a jaw mounting frame, a jaw unit and a push rod lifting driving unit, the jaw mounting frame is connected to the output end of the clamping rotation driving part; the jaw unit includes m jaw components circumferentially distributed along the rotation center of the jaw mounting frame and a push rod that can move up and down, and the jaw component includes a connecting rod and a clamping arm, the upper end of the connecting rod is rotatably arranged at the lower end of the push rod; the upper end of the clamping arm is rotatably connected to the lower end of the connecting rod, the middle part is rotatably arranged on the jaw mounting frame, and the inner side of the lower end has a clamping structure; the push rod lifting driving unit is connected to the output end of the clamping lifting driving part, and the output end of the push rod lifting driving unit is connected to the upper end of the push rod through a first rolling body; this device can realize automatic opening and closing operations, and to a certain extent improves the work efficiency of the experiment operator. However, since this device can only open the lid of one test tube individually each time, further improvement of the existing technology is needed. Summary of the Invention

[0003] The first technical problem to be solved by the present invention is to provide a test tube opening device that can perform batch opening and closing operations on test tubes in view of the above technical status.

[0004] The second technical problem to be solved by the present invention is to provide a test tube opening device that can minimize the contamination of the test tube body during the opening process in view of the above technical status.

[0005] The third technical problem to be solved by the present invention is to provide a test tube opening device that can avoid the contamination of the test tube lid after the opening action in view of the above technical status.

[0006] The technical solution adopted by the present invention to solve the above-mentioned first technical problem is: the test tube cover opening device includes a clamping mechanism for clamping and positioning the test tube body and an opening mechanism for clamping the test tube cover and rotating to open the cover, and is characterized in that: the opening mechanism includes a clamping claw component and a transmission component that is transmission-connected to the clamping claw component, and when the operator applies external force, the external force can be transmitted to the clamping claw component through the transmission component, so that the test tube covers clamped by the clamping claw component rotate together, thereby realizing the batch opening operation.

[0007] To solve the second technical problem, preferably, the clamping mechanism is confined within a space surrounded by a bottom box with an open top;

[0008] The cover opening mechanism comprises:

[0009] The top cover is used to install the clamping claw member and the transmission member. The top cover can cooperate with the top of the bottom box to form a relatively closed internal area. When the operator applies external force, the test tube caps clamped by the clamping claw member complete the batch opening operation in the aforementioned internal area. The top cover and the bottom box cooperate to form an internal area, so that the opening process is carried out in a closed environment as much as possible. This operation can prevent the entire opening process from being affected by the outside world, and can effectively protect the opened test tube body and prevent the test tube body from being contaminated by the outside world.

[0010] To solve the third technical problem, preferably, the clamping jaw member includes:

[0011] At least two clamping jaws, each of which is provided with at least two claw fingers, the upper ends of the claw fingers are mutually connected to form a connecting portion, and the lower ends of the claw fingers always have a tendency to open outward relative to the connecting portion;

[0012] A mounting seat is mounted on the top cover and used to mount the corresponding clamping jaws, comprising a cylinder with an opening facing downward, the cylinder having vertical grooves spaced circumferentially along the inner wall of the cylinder, the cylinder having a partition adjacent to its lower end, the partition dividing each vertical groove into an upper groove body and a lower groove body, the connecting portion of each clamping jaw resting on the partition, correspondingly, the connecting portion is provided with a protrusion that can extend into the upper groove body, and each claw finger has a limiting protrusion adjacent to its lower end that can be limited in the lower groove body;

[0013] When an operator applies external force, the test tube cover clamped by the clamp rotates, and the protrusion moves upward along the upper groove body, so that the clamp moves toward the inside of the cylinder body as the test tube cover rotates;

[0014] When the test tube cap is in the open state, the limiting protrusion is snapped into the lower groove body, so that the clamping jaws are kept in a state of being retracted into the cylinder body of the mounting seat, so that each of the claw fingers is restricted in the cylinder body and cannot open after the opening operation is completed, and then the test tube cap is clamped in the cylinder body. The test tube cap is clamped in the cylinder body, and the cylinder body is installed on the top cover as a part of the mounting seat. The internal area formed by the bottom box and the top cover makes the mounting seat in a relatively closed environment, so that the test tube cap is also restricted in this closed environment. When the opening operation is completed, the operator moves the opening device from the test tube rack and places it aside. The test tube cap in the above-mentioned closed environment will not be affected by the outside world, so as to avoid the test tube cap being contaminated as much as possible.

[0015] In order to better clamp the test tube body and the test tube cap, and thus better complete the opening operation, preferably, the clamping mechanism closes the claw fingers to clamp the test tube cap while clamping the test tube body. The clamping mechanism includes at least a pair of oppositely arranged clamping plate rows; in a state where each pair of the clamping plate rows clamps the test tube body and closes the claw fingers, the transmission member transmits the external force applied by the operator to each of the clamping jaws, so that the test tube caps clamped by each of the clamping jaws rotate together, and then the operation of batch opening of the caps is realized.

[0016] From the perspective of simple structure, preferably, the bottom box includes a bottom wall, and the bottom wall is provided with a through hole for the test tube body to extend into. Each pair of the clamping plate rows includes:

[0017] A first clamping plate, arranged on one side of the through hole of the bottom wall;

[0018] A second clamping plate, symmetrically arranged with the first clamping plate along the axis of the through hole on the other side of the through hole;

[0019] Wherein, the space facing each other between each pair of clamping plate rows forms a clamping space for clamping the test tube body. When the test tube body extends into the through hole, the first clamping plate and the second clamping plate can approach and slide relative to each other, so as to narrow the clamping space to clamp the test tube body, and at the same time close the claw fingers of the clamping jaws to clamp the test tube cap, and lock the clamping state through the locking member, so that the test tube body and the test tube cap are always in a clamped state.

[0020] In order to be able to close the open claw fingers to better clamp the test tube cap, preferably, the first clamping plate includes a first closing portion for closing the claw fingers of the clamping jaws, and the second clamping plate includes a second closing portion for closing the claw fingers of the clamping jaws. In a state where each pair of the clamping plate rows clamps the test tube body, the first closing portion and the second closing portion close the claw fingers to clamp the test tube cap.

[0021] In order to enable each pair of clamping plate columns to simultaneously complete the clamping or loosening operations, preferably, adjacent first clamping plates are connected by a first connecting member. The first connecting member includes a first handle portion protruding from the peripheral wall of the bottom box. Correspondingly, an opening for the first handle portion to protrude is formed in the peripheral wall. Similarly, adjacent second clamping plates are connected by a second connecting member. The second connecting member includes a second handle portion protruding from the peripheral wall. The operator holds the first handle portion and the second handle portion and pulls the first connecting member and the second connecting member away from each other. The first clamping plate and the second clamping plate can move towards each other and approach to clamp the test tube body. The first connecting member and the second connecting member are locked by the locking member, so that the test tube body is always in a clamped state.

[0022] In order to better clamp the test tube body, it is necessary to lock each pair of clamping plate columns after they approach. Preferably, an installation portion for installing the locking member is provided on one side of the peripheral wall. The locking member is installed on the installation portion and is arranged above the first connecting member and the second connecting member. The locking member includes a lifting handle portion and a locking portion that can extend into the first connecting member and the second connecting member. Correspondingly, a first groove and a second groove for the locking portion to extend into are provided on the first connecting member and the second connecting member.

[0023] Since the locking member can already lock the first connecting member and the second connecting member under manual operation, but for more convenient use, an elastic member can be added to the locking member for automatic locking. Preferably, a convex edge for installing a first elastic member is further provided above the locking portion of the locking member. One end of the first elastic member abuts against the convex edge, and the other end abuts against the installation portion, so that the locking member always has a tendency to extend downward into the first groove and the second groove. As long as when the first connecting member and the second connecting member move to above the first groove and the second groove where the locking portion of the locking member can extend into, the locking portion of the locking member can be pressed into the first groove and the second groove by the first elastic member to complete the locking process.

[0024] External force applied by an operator can be transmitted to each jaw member through a transmission member, thereby realizing batch opening and closing of caps. In daily work, when selecting a transmission member, gear transmission is generally chosen. However, when opening caps in batches, using only gears will cause many problems. For example, the rotation direction changes when gears mesh with each other. Batch cap opening requires all working gears to rotate in the same direction. Therefore, an intermediate gear must be added to make the gear receiving the external force rotate in the same direction as the final working gear. This will make the entire transmission member particularly large, and too many gears are prone to jamming. To minimize the negative impact caused by jamming, preferably, a recessed area above the mounting seat is provided in the central area of the top cover. The transmission member includes:

[0025] A planetary gear, arranged in the recessed area of the top cover, including an outer gear ring receiving power, a planetary sub-gear meshing with the outer gear ring and rotating in the same direction as the outer gear ring, and a sun gear meshing with the planetary sub-gear,

[0026] An annular belt, wound around the mounting seats spacedly arranged on the top cover;

[0027] Part of the mounting seats are connected to the planetary sub-gear. In a state where the planetary sub-gear drives part of the foregoing mounting seats to rotate, the annular belt transmits power to the other mounting seats corresponding to each jaw, so that each jaw is driven to rotate, and then the operation of opening the test tube cap is completed;

[0028] The outer gear ring is provided with a gripping portion exposed outside the top cover for the operator to grip. The combination of the planetary gear and belt drive can give play to their respective advantages. In the early stage of external force transmission, the advantages of stable transmission and reliable operation of gear transmission are exerted. When the sun gear is fixed, the rotation direction of the outer gear ring is the same as that of the planetary sub-gear. In the later stage of transmission, as a transmission method for multi-axis transmission, the belt drive gives play to the advantages of simple structure and consistent rotation direction. The local failure of the belt drive does not affect the whole. The combination of the two transmission methods ensures the stable operation of the transmission member as much as possible.

[0029] Compared with the prior art, the advantages of the present invention are that the test tube is clamped by a clamping mechanism, and a cap opening mechanism composed of a transmission member and a jaw member is used for batch cap opening operation, which can efficiently open a large number of test tubes, improve work efficiency, and has a simple structure design and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is an overall schematic diagram of the test tube cap opening device in an embodiment of the present invention;

[0031] Figure 2is a cross-sectional view of a test tube cover opening device in an embodiment of the present invention;

[0032] Figure 3 A partial cross-sectional view of the test tube cover opening device before opening the cover in the embodiment of the present invention;

[0033] Figure 4 It is a partial cross-sectional view of the test tube cover opening device after opening the cover in the embodiment of the present invention;

[0034] Figure 5 It is a top exploded view of the cover opening mechanism in the embodiment of the present invention;

[0035] Figure 6 This is an exploded bottom view of the cover opening mechanism in the embodiment of the present invention;

[0036] Figure 7 It is a top exploded view of the clamping mechanism in an embodiment of the present invention;

[0037] Figure 8 This is a bottom exploded view of the clamping mechanism in an embodiment of the present invention;

[0038] Figure 9 A schematic diagram of the claw fingers being opened in an embodiment of the present invention;

[0039] Figure 10 A schematic diagram of the claw fingers closing in an embodiment of the present invention;

[0040] Figure 11 2 is an exploded view of the clamping jaw component in an embodiment of the present invention. DETAILED DESCRIPTION

[0041] The present invention is further described in detail below with reference to the accompanying drawings.

[0042] like Figures 1 to 11 The test tube opening device of this embodiment includes a clamping mechanism 2 for clamping and positioning the test tube body 1 and an opening mechanism 3 for clamping and rotating the test tube cover 11. The opening mechanism 3 includes a clamping jaw member 31 and a transmission member 32 connected to the clamping jaw member 31. When the operator applies an external force, the external force can be transmitted to the clamping jaw member 31 through the transmission member 32, so that each test tube cover 11 clamped by the clamping jaw member 31 rotates together, and then the batch opening operation is realized. The clamping mechanism 2 clamps the test tube, and the opening mechanism composed of the transmission member 32 and the clamping jaw member 31 performs the batch opening operation, so that a large number of test tubes can be opened efficiently.

[0043] In order to minimize the contamination of the test tube body 1 during the process of opening the lid, the clamping mechanism 2 of this embodiment is limited to the space surrounded by the bottom box 4 with an open top; the lid opening mechanism 3 includes a top cover 33 for installing the jaw member 31 and the transmission member 32, wherein the top cover 33 can cooperate with the top of the bottom box 4, and the two form a relatively enclosed internal area. Under the state where an external force is applied by the operator, each test tube lid 11 clamped by the jaw member 31 completes the batch lid opening operation in the aforementioned internal area. Since the cooperation between the top cover 33 and the bottom box 4 forms an internal area, the lid opening process can be carried out in a closed environment as much as possible. Such an operation can make the entire lid opening process not affected by the outside world, effectively protecting the opened test tube body 1 and avoiding the contamination of the test tube body 1 by the outside world.

[0044] In addition to ensuring that the test tube body 1 is not contaminated during the opening process, it is also necessary to ensure that the test tube cover 11 is not contaminated after the opening action is completed. To this end, the clamping jaw member 31 of the present embodiment includes at least two clamping jaws 311 and a mounting seat 312 installed on the top cover 33 and used to mount the corresponding clamping jaws 311, wherein each clamping jaw 311 is provided with four claw fingers 3111, and the upper ends of each claw finger 3111 are connected to each other to form a connecting portion 3112, and the lower ends of each claw finger 3111 always have a tendency to open outward relative to the connecting portion 3112; and the mounting seat 312 includes a barrel 3121 with an opening facing downward, and the barrel 3121 is circumferentially spaced along the inner wall of the barrel with vertical grooves 3122, and the barrel 3121 has a partition 3123 adjacent to its lower end, and the partition 3123 divides each vertical groove 3122 into an upper groove body 3122a and a lower groove body 3122b, and each clamping jaw 311 The connecting portion 3112 is placed on the partition 3123, and correspondingly, the connecting portion 3112 is provided with a protrusion 3113 that can extend into the upper groove 3122a, and each claw finger 3111 has a limiting protrusion 3114 adjacent to its lower end that can be limited in the lower groove 3122b; when the operator applies external force, the test tube cover 11 clamped by the clamp 311 rotates, and the protrusion 3113 moves upward along the upper groove 3122a, so that the clamp 3 11 moves toward the inside of the cylinder 3121 as the test tube cover 11 rotates; when the test tube cover 11 is opened, the limiting protrusion 3114 is stuck in the lower groove 3122b, so that the clamping claw 311 remains in a state of being retracted in the cylinder 3121 of the mounting seat 312, so that each claw finger 3111 is restricted in the cylinder 3121 and cannot be opened after the opening operation is completed, and then the test tube cover 11 is clamped in the cylinder 3121. The test tube cover 11 is clamped in the barrel 3121, and the barrel 3121 is installed on the top cover 33 as a part of the mounting seat 312. The internal area formed by the bottom box 4 and the top cover 33 makes the mounting seat 312 in a relatively closed environment, so that the test tube cover 11 is also in this closed environment. When the opening operation is completed, the operator removes the opening device from the test tube rack and puts it aside. The test tube cover 11 in the above-mentioned closed environment will not be affected by the outside world, thereby avoiding the test tube cover 11 from being contaminated as much as possible.

[0045] In addition, in order to better clamp the test tube body 1 and the test tube cap 11, and thus better complete the operation of opening the cap, the clamping mechanism 2 of this embodiment closes the claw fingers 3111 while clamping the test tube body 1. The clamping mechanism 2 includes eleven pairs of oppositely arranged clamping plate rows 21. There are 11 pairs of clamping plate rows 21 in this embodiment. In the state where each pair of clamping plate rows 21 clamps the test tube body 1 and closes the claw fingers 3111, the transmission member 32 transmits the external force applied by the operator to each jaw 31, so that the test tube caps 11 clamped by each jaw 31 rotate together, thereby realizing the operation of batch opening of the caps. The bottom box 4 for accommodating the clamping plate rows 21 includes a bottom wall 41, and the bottom wall 41 is provided with a through hole 411 for the test tube body 1 to extend into. Each pair of clamping plate rows 21 includes a first clamping plate 211 provided on one side of the through hole 411 of the bottom wall 41; a second clamping plate 212 symmetrically arranged with the first clamping plate 211 along the axis of the through hole 411 on the other side of the through hole 411; wherein the space facing each other between each pair of clamping plate rows 21 forms a clamping space 213 for clamping the test tube body 1. When the test tube body 1 extends into the through hole 411, the first clamping plate 211 and the second clamping plate 212 can approach and slide relative to each other, so as to narrow the clamping space 213 to clamp the test tube body 1, and at the same time close the claw fingers 311 of the jaws 31 to clamp the test tube cap 11, and lock the clamping state through the locking member 5, so that the test tube body 1 and the test tube cap 11 are always in a clamped state.

[0046] In order to be able to close the open claw fingers 4111 to better clamp the test tube cap 11, the first clamping plate 211 of this embodiment includes a first closing portion 2111 for closing the claw fingers 3111 of the jaws 311, and the second clamping plate 212 includes a second closing portion 2121 for closing the claw fingers 3111 of the jaws 311. In the state where each pair of clamping plate rows 21 clamps the test tube body 1, the first closing portion 2111 and the second closing portion 2121 close the claw fingers 3111 to clamp the test tube cap 11. As Figure 9 shown, the first closing portion 2111 is a first rod body 2111a connected above the first clamping plate 211. The first rod body 2111a has an inwardly concave first notch 2111b corresponding to each test tube cap 11, and the second closing portion 2121 is a second rod body 2121a connected above the second clamping plate 212. The second rod body 2121a has an inwardly concave second notch 2121b corresponding to each test tube cap 11. In the state where each pair of clamping plate rows 21 clamps the test tube body 1, the first notch 2111b of the first rod body 2111a and the second notch 2121b of the second rod body 2121a jointly form a closing circle that can close the test tube cap 11.

[0047] Meanwhile, in order to enable each pair of clamping plate columns 21 to complete the clamping or loosening operations simultaneously, adjacent first clamping plates 211 in this embodiment are connected by a first connecting member 6. The first connecting member 6 includes a first handle portion 61 that protrudes from the peripheral wall 42 of the bottom box 4. Correspondingly, the peripheral wall 42 is provided with an opening 421 for the first handle portion 61 to protrude. Similarly, adjacent second clamping plates 212 are connected by a second connecting member 7. The second connecting member 7 includes a second handle portion 71 that protrudes from the peripheral wall 42. The operator holds the first handle portion 61 and the second handle portion 71 and pulls the first connecting member 6 and the second connecting member 7 away from each other. The first clamping plate 211 and the second clamping plate 212 can move towards each other to clamp the test tube body 1. The first connecting member 6 and the second connecting member 7 are locked by a locking member 5, so that the test tube body 1 is always in a clamped state.

[0048] In order to better clamp the test tube body 1, it is necessary to lock each pair of clamping plate columns 21 after they approach each other. On one side of the peripheral wall 42 in this embodiment, there is an installation portion 422 for installing the locking member 5. The locking member 5 is installed on the installation portion 422 and is disposed above the first connecting member 6 and the second connecting member 7. The locking member 5 includes a lifting handle portion 51 and a locking portion 52 that can extend into the first connecting member 6 and the second connecting member 7. Correspondingly, the first connecting member 6 and the second connecting member 7 are provided with a first groove 62 and a second groove 72 for the locking portion 52 to extend into. Although the locking member 5 can lock the first connecting member 6 and the second connecting member 7 under manual operation, for more convenient use, an elastic member can be added to the locking member 5 for automatic locking. Above the locking portion 52 of the locking member 5 in this embodiment, there is also a convex edge 53 for installing a first elastic member 8. One end of the first elastic member 8 abuts against the convex edge 53, and the other end abuts against the installation portion 422, so that the locking member 5 always has a tendency to extend downward into the first groove 62 and the second groove 72. As long as when the first connecting member 6 and the second connecting member 7 move to above the first groove 62 and the second groove 72 into which the locking portion 52 of the locking member 5 can extend, the locking portion 52 of the locking member 5 can be pressed into the first groove 62 and the second groove 72 by the first elastic member 8 to complete the locking process.

[0049] Finally, since the external force applied by the operator can be transmitted to each clamping member 31 through the transmission member 32, thereby realizing batch opening and closing operations, gear transmission is generally selected for the transmission member 32 in daily work. However, when opening the covers in batches, using gears completely will bring many problems. For example, the rotation direction will change when the gears mesh with each other. Batch opening requires that all working gears have the same rotation direction. For this purpose, it is necessary to add an intermediate gear so that the gear receiving the external force has the same rotation direction as the final working gear. This will make the entire transmission member particularly large, and too many gears will easily cause tooth jamming. In order to minimize the negative impact of tooth jamming, the following structure is used in the design of this embodiment to achieve a relatively better transmission effect: the central area of ​​the top cover 33 of the transmission mechanism of this embodiment has a recessed portion located above the mounting seat 312. The transmission member 32 includes a planetary gear 321 disposed in the recessed area 331 of the top cover 33, an outer gear ring 3211 receiving power, a planetary sub-gear 3212 meshing with the outer gear ring 3211 and rotating in the same direction as the outer gear ring 3211, a sun gear 3213 meshing with the planetary sub-gear 3212, and an annular belt 322 wound around the mounting seat 312 spaced apart on the top cover 33; part of the mounting seat 312 is connected to the planetary sub-gear 3212, and when the planetary sub-gear 3212 drives part of the aforementioned mounting seat 312 to rotate, the annular belt 322 transmits power to the corresponding other mounting seats 312 of each clamping jaw 311, so that each clamping jaw 311 is driven to rotate, and then the operation of opening the test tube cover 11 is completed; and the outer gear ring 3211 is provided with a gripping portion 3211a exposed from the top cover 33 for the operator to hold. The combination of planetary gear 321 and belt drive can bring out the advantages of each. In the early transmission of external force, the gear transmission has the advantages of stable transmission and reliable operation, and the planetary gear 321 can make the rotation direction of the outer ring 3211 consistent with the rotation direction of the planetary sub-gear 3212 when the sun gear 3213 is fixed. In the later transmission, the belt drive, as a transmission method for transmission between multiple axes, has the advantages of simple belt drive structure and consistent rotation direction. Local failure of the belt drive does not affect the overall operation. The combination of the two transmission methods ensures the stable operation of the transmission components as much as possible.

[0050] In summary, the use process of the test tube opening device is as follows: the operator places the test tube to be opened on the test tube rack 9,

[0051] (1) The operator then moves the test tube cover opening device from top to bottom to allow the test tube body 1 and the test tube cover 11 to enter the bottom box 4 from the through hole 411 of the bottom wall 41. At this time, the test tube cover 11 has reached the position of the claw finger 3111 of the clamping claw 311. Because the clamping mechanism 2 is not operated, the claw finger 3111 is in an open state at this time, and the test tube cover 11 can easily reach the position of the claw finger 3111.

[0052] (2) At this time, the operator holds the first handle portion 61 and the second handle portion 71 and pulls them in opposite directions. The first connecting member 6 and the second connecting member 7 move in opposite directions accordingly. The first clamping plate 211 and the second clamping plate 212 move towards each other to clamp the test tube body 1. The first closing portion 2111 and the second closing portion 2121 move towards each other to close the claw fingers 3111;

[0053] (3) When the test tube body 1 is clamped, the locking member 5 locks the clamping plate row 21 under the action of the first elastic member 8;

[0054] (4) Then, the operator holds the holding portion 3211a on the external gear ring 3211 and rotates the external gear ring 3211. Under the action of the external gear ring 3211, the planetary sub-gear 3212, and the annular belt 322, the external force applied by the operator is transmitted to the mounting seat 312. The mounting seat 312 rotates to make the clamped test tube cap 11 rotate, so that the test tube cap 11 is separated from the test tube body 1, and then the opening operation is completed;

[0055] (5) The operator pulls the lifting handle portion 51 of the locking member 5, so that the locking portion 52 disengages from the first groove 62 and the second groove 72, and the clamping plate row 21 is released;

[0056] (6) Finally, the test tube opening device with the test tube cap 11 is removed and placed aside;

[0057] (7) When closing the cap is required, the operation is similar, except that the rotation direction is opposite after holding the holding portion 3211a.

Claims

1. A test tube cover opening device, comprising a clamping mechanism (2) for clamping and positioning a test tube body (1) and a cover opening mechanism (3) for clamping and rotating a test tube cover (11), Features: The cover opening mechanism (3) comprises a clamping jaw member (31) and a transmission member (32) in transmission connection with the clamping jaw member (31); when an operator applies an external force, the external force can be transmitted to the clamping jaw member (31) via the transmission member (32), so that each test tube cover (11) clamped by the clamping jaw member (31) rotates together, thereby realizing a batch cover opening operation; The clamping mechanism (2) is confined within a space surrounded by a bottom box (4) with an open top; The cover opening mechanism (3) comprises: A top cover (33) is used to install the clamping jaw member (31) and the transmission member (32). The top cover (33) can cooperate with the top of the bottom box (4), and the two form a relatively closed internal area. When an operator applies external force, each test tube cap (11) clamped by the clamping jaw member (31) completes a batch opening operation in the aforementioned internal area; The clamping jaw member (31) comprises: At least two clamping jaws (311), each of the clamping jaws (311) is provided with at least two claw fingers (3111), the upper ends of the claw fingers (3111) are mutually connected to form a connecting portion (3112), and the lower ends of the claw fingers (3111) always have a tendency to open outwards relative to the connecting portion (3112); The mounting seat (312) is mounted on the top cover (33) and used to mount the corresponding clamping jaw (311), comprising a cylinder (3121) with an opening facing downward, the cylinder (3121) having vertical grooves (3122) spaced apart circumferentially along the inner wall of the cylinder, and the cylinder (3121) has a partition (3123) adjacent to its lower end, the partition (3123) dividing each vertical groove (3122) into upper grooves and lower grooves. The upper and lower grooves (3122a and 3122b) are connected to each other, the connecting portion (3112) of each of the clamping jaws (311) is placed on the partition (3123), and correspondingly, the connecting portion (3112) is provided with a protrusion (3113) that can extend into the upper groove (3122a), and each of the claw fingers (3111) has a limiting protrusion (3114) adjacent to its lower end that can be limited in the lower groove (3122b); When an operator applies an external force, the test tube cover (11) clamped by the clamp (311) rotates, and the protrusion (3113) moves upward along the upper groove (3122a), so that the clamp (311) moves toward the inside of the cylinder (3121) as the test tube cover (11) rotates; When the test tube cap (11) is in an open state, the limiting protrusion (3114) snaps into the lower groove body (3122b), so that the clamping jaws (311) are kept in a state of being retracted into the cylinder body (3121) of the mounting seat (312), thereby enabling each of the claw fingers (3111) to be restricted within the cylinder body (3121) and unable to open after the open cap operation, and then enabling the test tube cap (11) to be clamped within the cylinder body (3121).

2. The test tube open cap device according to claim 1, characterized in that: while clamping the test tube body (1), the clamping mechanism (2) closes the claw fingers (3111) to clamp the test tube cap (11), and the clamping mechanism (2) includes at least a pair of relatively arranged clamping plate rows (21); in a state where each pair of the clamping plate rows (21) clamps the test tube body (1) and closes the claw fingers (3111), the transmission member (32) transmits the external force applied by the operator to each of the clamping jaws (311), so that the test tube caps (11) clamped by each of the clamping jaws (311) rotate together, and then the operation of batch open cap is realized.

3. The test tube open cap device according to claim 2, characterized in that: the bottom box (4) includes a bottom wall (41), and the bottom wall (41) is provided with a through hole (411) for the test tube body (1) to extend into, and each pair of the clamping plate rows (21) includes: a first clamping plate (211), arranged on one side of the through hole (411) of the bottom wall (41); a second clamping plate (212), symmetrically arranged with the first clamping plate (211) along the axis of the through hole (411) on the other side of the through hole (411); wherein the space facing each other between each pair of the clamping plate rows (21) forms a clamping space (213) for clamping the test tube body (1). When the test tube body (1) extends into the through hole (411), the first clamping plate (211) and the second clamping plate (212) can approach and slide relative to each other, so as to reduce the clamping space (213) to clamp the test tube body (1), and at the same time close the claw fingers (3111) of the clamping jaws (311) to clamp the test tube cap (11), and lock the clamping state through the locking member (5), so that the test tube body (1) and the test tube cap (11) are always in a clamped state.

4. The test tube open cap device according to claim 3, characterized in that: the first clamping plate (211) includes a first closing part (2111) for closing the claw fingers (3111) of the clamping jaws (311), and the second clamping plate (212) includes a second closing part (2121) for closing the claw fingers (3111) of the clamping jaws (311). In a state where each pair of the clamping plate rows (21) clamps the test tube body (1), the first closing part (2111) and the second closing part (2121) close the claw fingers (3111) to clamp the test tube cap (11).

5. The test tube open cap device according to claim 4, characterized in that: The adjacent first clamping plates (211) are connected by a first connecting member (6). The first connecting member (6) includes a first handle portion (61) protruding from the peripheral wall (42) of the bottom box (4). Correspondingly, an opening (421) for the first handle portion (61) to protrude is formed on the peripheral wall (42). Similarly, the adjacent second clamping plates (212) are connected by a second connecting member (7). The second connecting member (7) includes a second handle portion (71) protruding from the peripheral wall (42). The operator holds the first handle portion (61) and the second handle portion (71), and pulls the first connecting member (6) and the second connecting member (7) away from each other. The first clamping plate (211) and the second clamping plate (212) can move towards each other and approach to clamp the test tube body (1). The first connecting member (6) and the second connecting member (7) are locked by the locking member (5), so that the test tube body (1) is always in a clamped state.

6. The test tube lid opening device according to claim 5, characterized in that: An installation portion (422) for installing the locking member (5) is provided on one side of the peripheral wall (42). The locking member (5) is installed on the installation portion (422) and is arranged above the first connecting member (6) and the second connecting member (7). The locking member (5) includes a lifting handle portion (51) and a locking portion (52) that can extend into the first connecting member (6) and the second connecting member (7). Correspondingly, a first groove (62) and a second groove (72) for the locking portion (52) to extend into are provided on the first connecting member (6) and the second connecting member (7).

7. The test tube lid opening device according to claim 6, characterized in that: A convex edge (53) for installing a first elastic member (8) is further provided above the locking portion (52) of the locking member (5). One end of the first elastic member (8) abuts against the convex edge (53), and the other end abuts against the installation portion (422), so that the locking member (5) always has a tendency to extend downward into the first groove (62) and the second groove (72).

8. The test tube lid opening device according to any one of claims 1-7, characterized in that: A concave area (331) located above the mounting seat (312) is provided in the central area of the top cover (33). The transmission member (32) includes: A planetary gear (321) is arranged in the concave area (331) of the top cover (33). It includes an outer tooth ring (3211) for receiving power, a planetary sub-gear (3212) meshing with the outer tooth ring (3211) and rotating in the same direction as the outer tooth ring (3211), and a sun gear (3213) meshing with the planetary sub-gear (3212); An annular belt (322) is wound around the mounting seats (312) spacedly arranged on the top cover (33); The mounting base (312) described in part is connected to the planetary sub-gear (3212). In a state where the planetary sub-gear (3212) drives part of the aforementioned mounting base (312) to rotate, the annular belt (322) transmits power to the other mounting bases (312) corresponding to each jaw (311), causing each jaw (311) to be driven to rotate, and then completing the operation of opening the test tube cap (11). The external gear ring (3211) is provided with a gripping portion (3211a) that is exposed outside the top cover (33) and is for the operator to grip.

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