A locking mechanism, adapter, centrifuge, and grinder.

Abstract

This invention provides an anti-loosening clamping mechanism, an adapter, a centrifuge, and a grinder. The anti-loosening clamping mechanism includes a cap, an anti-loosening seat, and an anti-loosening limiting component. The cap is detachably connected to the anti-loosening seat via a thread. The anti-loosening limiting component restricts relative movement between the cap and the anti-loosening seat along the circumferential direction of the connecting thread. Before tightening the cap, the anti-loosening limiting component is in a non-limiting state, allowing the cap to be smoothly screwed onto the anti-loosening seat. After the cap is tightened onto the anti-loosening seat, the anti-loosening limiting component switches to a limiting state to prevent the cap from loosening from the anti-loosening seat. This prevents the cap from loosening even when the cap and anti-loosening seat move or vibrate together, improving the reliability of the anti-loosening clamping mechanism. When applied to high-speed rotating centrifuges or grinders, the anti-loosening clamping mechanism can reliably clamp test tubes, with a simple structure, convenient operation, and reliable performance.

Description

Technical Field

[0001] This invention relates to experimental auxiliary equipment, particularly an anti-loosening clamping mechanism, an adapter, a centrifuge, and a grinder. Background Technology

[0002] Structures that are frequently disassembled and reassembled often become loose when in motion, leading to unreliable operation and potential safety hazards. For example, the clamping structure of adapters used in grinding and centrifuging equipment often requires frequent disassembly and tightening, so the clamping force is generally not very high. During high-speed operation of the equipment, it is prone to loosening, and repeated over-tightening can easily damage the clamping structure. Summary of the Invention

[0003] In order to overcome the shortcomings of the prior art, the purpose of this invention is to provide an anti-loosening clamping mechanism, an adapter, a centrifuge, and a grinder.

[0004] To achieve the above objectives, the technical solution adopted by the present invention to solve its technical problem is: an anti-loosening clamping mechanism, including a pressure cap, an anti-loosening seat, and an anti-loosening limiting component. The pressure cap is detachably connected to the anti-loosening seat by a thread, and the anti-loosening limiting component is used to limit the relative movement between the pressure cap and the anti-loosening seat in the circumferential direction along the connecting thread.

[0005] By employing the technical solution of this invention, before the cap is tightened, the anti-loosening limiting component is in a non-limiting state so that the cap can be smoothly screwed onto the anti-loosening seat; after the cap is tightened onto the anti-loosening seat, the anti-loosening limiting component switches to a limiting state to prevent the cap from loosening from the anti-loosening seat. In this way, the cap will not loosen when it moves or vibrates together with the anti-loosening seat, thus improving the reliability of the anti-loosening clamping mechanism.

[0006] Furthermore, the anti-loosening seat is provided with a plurality of pin holes distributed circumferentially along the central axis of the connecting thread. The anti-loosening limiting assembly includes an anti-loosening pin, an anti-loosening pin cap, and an elastic element. The anti-loosening pin passes through the mounting hole of the pressure cap, the anti-loosening pin cap is connected to the anti-loosening pin, and the two ends of the elastic element abut against the anti-loosening pin and the pressure cap respectively. Under the action of the elastic element, the head end of the anti-loosening pin can extend into one pin hole on the anti-loosening seat.

[0007] With the above-mentioned preferred solution, when the anti-loosening pin is inserted into the pin hole of the anti-loosening seat, the gland will not loosen circumferentially relative to the anti-loosening seat. Under the action of the elastic element, the anti-loosening pin will not come out of the pin hole under the influence of movement or vibration, ensuring that the gland is reliably tightened.

[0008] Furthermore, the lower surface of the anti-loosening pin cap is provided with a boss / groove, and the pressure cap is provided with a groove / boss that matches the boss / groove of the anti-loosening pin cap; when the boss / groove of the anti-loosening pin cap mates with the groove / boss of the pressure cap, the tip of the anti-loosening pin extends into a pin hole on the anti-loosening seat; when the boss / groove of the anti-loosening pin cap and the groove / boss of the pressure cap are in an interleaved state, the tip of the anti-loosening pin disengages from the pin hole on the anti-loosening seat.

[0009] Using the preferred scheme described above, before the cap is screwed onto the anti-loosening seat, the surface of the boss is in contact with the outer surface of the groove, meaning the boss is not embedded in the groove. After the cap is tightened onto the anti-loosening seat and the object is pressed, the anti-loosening pin cap is rotated by a certain angle so that the boss is aligned with the groove. If the boss does not automatically embed into the groove at this point, the cap needs to be rotated by a small angle to make the anti-loosening pin align with and enter the pin hole of the anti-loosening seat, thus embedding the boss into the groove.

[0010] Furthermore, the groove of the anti-loosening pin cap or the pressure cap is a long strip-shaped groove that runs through the left and right sides.

[0011] By adopting the above-mentioned preferred solution, the operator can intuitively see the fit between the boss and the groove, and thus know the fit between the anti-loosening ejector pin and the ejector pin hole.

[0012] An adapter, comprising:

[0013] An adapter holder, wherein at least one test tube sleeve is provided on the adapter holder, and a test tube is placed inside the test tube sleeve;

[0014] The anti-loosening clamping mechanism has an anti-loosening seat fixedly connected to the adapter seat, and an outwardly extending pressure plate is provided on the outer periphery of the pressure cover of the anti-loosening clamping mechanism, which presses against the test tube cover.

[0015] Thanks to the aforementioned anti-loosening clamping mechanism, the pressure plate can still maintain a reliable clamping force on the test tube even under prolonged movement or vibration.

[0016] Furthermore, a baffle is provided on the back of the cover, and the pressure plate is disposed between the cover and the baffle and can rotate circumferentially relative to the cover and the baffle.

[0017] With the above-mentioned preferred solution, since the pressure plate and the cap can rotate relative to each other, after the pressure plate contacts the test tube, the static friction between the pressure plate and the test tube is much greater than the friction between the pressure plate and the cap, so the pressure plate and the test tube remain stationary, and the process of tightening the cap and applying pressure is also more labor-saving.

[0018] A centrifuge includes a rotary drive mechanism and the aforementioned adapter, wherein the adapter housing is mounted on the rotating shaft of the rotary drive mechanism.

[0019] Thanks to the aforementioned adapter, reliable clamping of test tubes containing samples to be centrifuged can be achieved. The structure is simple, the operation is convenient, and the running is reliable.

[0020] A grinding instrument includes an oscillation drive mechanism and the aforementioned adapter, wherein the adapter seat is mounted on the rocker arm of the oscillation drive mechanism.

[0021] Thanks to the aforementioned adapter, reliable clamping of test tubes containing samples to be ground can be achieved. The structure is simple, the operation is convenient, and the running is reliable. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the adapter of the present invention in a limited position according to one embodiment;

[0024] Figure 2 Is with Figure 1 Corresponding three-dimensional structural diagram;

[0025] Figure 3 This is a schematic diagram of the adapter of the present invention in a non-limited state according to one embodiment;

[0026] Figure 4 Is with Figure 3 Corresponding three-dimensional structural diagram;

[0027] Figure 5 This is a structural schematic diagram of one embodiment of the anti-loosening seat;

[0028] Figure 6 This is a structural schematic diagram of one embodiment of the pressure cap;

[0029] Figure 7 This is a structural diagram of one embodiment of the anti-loosening thimble cap;

[0030] Figure 8 This is a schematic diagram of another embodiment of the anti-loosening clamping mechanism in the limit release state;

[0031] Figure 9 This is a schematic diagram of another embodiment of the anti-loosening clamping mechanism in a rotational limiting state;

[0032] Figure 10This is a schematic diagram of the bottom surface structure of another embodiment of the pressure cap;

[0033] Figure 11 This is a cross-sectional view of another embodiment of the anti-loosening clamping mechanism.

[0034] The numbers and letters in the diagram represent the names of the corresponding components:

[0035] 11-Cap; 111-Groove; 12-Pressure plate; 13-Baffle; 20-Anti-loosening seat; 201-Connecting thread; 202-Ejector hole; 30-Anti-loosening limiting component; 301-Anti-loosening ejector pin; 302-Anti-loosening ejector pin cap; 3021-Boss; 303-Elastic element; 40-Adapter seat; 401-Test tube sleeve; 402-Test tube; 50-Limit release magnetic attraction; 51-Limiting pin; 52-Sliding block; 521-Bayonet groove; 53-Slide groove. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] like Figure 1 As shown, an anti-loosening clamping mechanism includes a pressure cap 11, an anti-loosening seat 20, and an anti-loosening limiting component 30. The pressure cap 11 is detachably connected to the anti-loosening seat 20 via a connecting thread 201. The anti-loosening limiting component 30 is used to limit the relative movement between the pressure cap 11 and the anti-loosening seat 20 along the circumferential direction of the connecting thread 201.

[0038] The beneficial effects of adopting the above technical solution are: after the gland is tightened onto the anti-loosening seat, the anti-loosening limiting component restricts the gland from falling off the anti-loosening seat, so that the gland will not loosen when it moves or vibrates together with the anti-loosening seat, thus improving the reliability of the anti-loosening clamping mechanism.

[0039] like Figure 1-5As shown, in some other embodiments of the present invention, the anti-loosening seat 20 is provided with a plurality of pin holes 202 distributed circumferentially along the central axis of the connecting thread. The anti-loosening limiting component 30 includes an anti-loosening pin 301, an anti-loosening pin cap 302, and an elastic element 303. The anti-loosening pin 301 passes through the mounting hole of the pressure cap 11. The anti-loosening pin cap 302 is fixedly connected or rotatably connected to the anti-loosening pin 301. The two ends of the elastic element 303 abut against the anti-loosening pin 301 and the pressure cap 11, respectively. Under the action of the elastic element 303, the head of the anti-loosening pin 301 can extend into one pin hole 202 on the anti-loosening seat 20. The beneficial effects of adopting the above technical solution are: when the anti-loosening pin 301 is inserted into the pin hole 202 of the anti-loosening seat, the pressure cap 11 will not loosen circumferentially relative to the anti-loosening seat 20. Under the action of the elastic element 303, the anti-loosening pin 301 will not come out of the pin hole 202 under the influence of movement or vibration, ensuring that the pressure cap 11 is reliably pressed.

[0040] like Figure 6 , 7 As shown, in some other embodiments of the present invention, the lower surface of the anti-loosening pin cap 302 is provided with a boss 3021, and the pressure cap 11 is provided with a groove 111 that matches the boss 3021 of the anti-loosening pin cap 302; when the boss 3021 of the anti-loosening pin cap is engaged with the groove 111 of the pressure cap, the head of the anti-loosening pin 301 extends into a pin hole 202 on the anti-loosening seat 20; when the boss 3021 of the anti-loosening pin cap and the groove 111 of the pressure cap are in an interleaved state, that is, when the surface of the boss 3021 abuts against the outer plane of the opening of the groove 111, the head of the anti-loosening pin 301 disengages from the pin hole 202 on the anti-loosening seat. The beneficial effects of the above technical solution are as follows: Before the pressure cap 11 is screwed onto the anti-loosening seat 20, the anti-loosening ejector cap is lifted and rotated so that the surface of the boss 3021 contacts the outer surface of the groove 111, that is, the boss 3021 is not embedded in the groove 111; after the pressure cap 11 is tightened onto the anti-loosening seat 20 and the object is pressed, the anti-loosening ejector cap 302 is rotated at a certain angle so that the boss 3021 is aligned with the groove 111. If the boss does not automatically embed into the groove at this time, the pressure cap needs to be rotated a small angle to make the anti-loosening ejector 301 aligned and enter the ejector hole 202 of the anti-loosening seat, and then the boss 3021 is embedded in the groove 111.

[0041] In other embodiments of the present invention, the groove 111 of the pressure cap 11 is an elongated groove that runs through the left and right sides. The beneficial effect of adopting the above technical solution is that it allows the operator to intuitively see the fit between the boss and the groove, and thus know the fit between the anti-loosening ejector pin and the ejector pin hole.

[0042] like Figure 8-11As shown, another embodiment of the anti-loosening limiting assembly is illustrated. The lower surface of the pressure cap 11 is provided with multiple limiting pins 51 arranged in a circumferential array. Multiple sliding grooves 53 are provided on the anti-loosening seat 20, and a sliding block 52 is slidably mounted on each sliding groove 53. A locking groove 521 is formed at the outer circumferential end of each sliding block 52. The number of limiting pins 51 is not equal to the number of sliding blocks 52. Figure 11 In the structure, there are 16 limiting pins 51 and 15 sliding blocks 52, so that the included angle between each pair of adjacent sliding blocks 52 and the limiting pins 51 is different. After the pressure cap 11 is tightened and the working mode is activated, the anti-loosening clamping mechanism rotates as a whole. The sliding blocks 52 are subjected to centrifugal force and will move radially away from the center. The head end of one sliding block 52 abuts against the limiting pin 51, and the slots 521 of the sliding blocks surround the limiting pin 51. These slots 521 surrounding the limiting pin 51 can prevent the pressure cap from rotating relative to the anti-loosening seat 20 and prevent loosening. In addition, in order to allow the sliding blocks to return smoothly to the center after the machine stops so that the operator can easily unscrew the cover, a limiting release magnet 50 is also included, which can be inserted into the center hole of the cover 11 and the center groove of the anti-loosening seat 20. When the limiting release magnet 50 is in place, each sliding block 52 can be attracted and retracted to the center position. The slot 521 of each sliding block 52 is away from the limiting pin 51 at the corresponding position and unlocked, so as to facilitate unscrewing the cover 11.

[0043] like Figure 1-4 As shown, an adapter includes:

[0044] An adapter holder 40 is provided with at least one test tube sleeve 401, and a test tube 402 is placed inside the test tube sleeve 401.

[0045] The aforementioned anti-loosening clamping mechanism has an anti-loosening seat 20 fixedly connected to the adapter seat 40, and an outwardly extending pressure plate 12 is provided on the outer periphery of the pressure cover 11 of the anti-loosening clamping mechanism, which presses against the test tube cap of the test tube.

[0046] Thanks to the aforementioned anti-loosening clamping mechanism, the pressure plate can still maintain a reliable clamping force on the test tube even under prolonged movement or vibration.

[0047] like Figure 1 As shown, in some other embodiments of the present invention, a baffle 13 is provided on the back of the cap 11, and a pressure plate 12 is disposed between the cap 11 and the baffle 13 and can rotate circumferentially relative to the cap 11 and the baffle 13. The beneficial effect of adopting the above technical solution is that, since the pressure plate and the cap can rotate relative to each other, after the pressure plate contacts the test tube, the static friction between the pressure plate and the test tube is much greater than the friction between the pressure plate and the cap, so the pressure plate and the test tube remain stationary, and the process of further tightening the cap and applying pressure is also more labor-saving.

[0048] A centrifuge includes a rotary drive mechanism and the aforementioned adapter, wherein the adapter housing is mounted on the rotating shaft of the rotary drive mechanism.

[0049] Thanks to the aforementioned adapter, reliable clamping of test tubes containing samples to be centrifuged can be achieved. The structure is simple, the operation is convenient, and the running is reliable.

[0050] A grinding instrument includes an oscillation drive mechanism and the aforementioned adapter, wherein the adapter seat is mounted on the rocker arm of the oscillation drive mechanism.

[0051] Thanks to the aforementioned adapter, reliable clamping of test tubes containing samples to be ground can be achieved. The structure is simple, the operation is convenient, and the running is reliable.

[0052] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it. They should not be used to limit the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An adapter, characterized in that, include: An adapter holder, wherein at least one test tube sleeve is provided on the adapter holder, and a test tube is placed inside the test tube sleeve; An anti-loosening clamping mechanism includes a pressure cap, an anti-loosening seat, and an anti-loosening limiting component. The pressure cap is detachably connected to the anti-loosening seat via threads. The anti-loosening limiting component restricts relative movement between the pressure cap and the anti-loosening seat along the circumferential direction of the connecting threads. The lower surface of the pressure cap has multiple limiting pins arranged in a circumferential array. The anti-loosening seat has multiple sliding grooves, each of which has a sliding block slidably mounted. Each sliding block has a locking groove at its outer circumferential end. The number of limiting pins is not equal to the number of sliding blocks. The mechanism also includes a limiting release magnet that can be inserted into the center hole of the pressure cap and the center groove of the anti-loosening seat. When the limiting release magnet is in place, each sliding block is attracted and retracts to the center position, and the locking groove of each sliding block is disengaged from the corresponding limiting pin, thus unlocking the mechanism. The anti-loosening seat of the anti-loosening clamping mechanism is fixedly connected to the adapter seat. An outwardly extending pressure plate is provided on the outer periphery of the pressure cover of the anti-loosening clamping mechanism, and the pressure plate presses against the test tube cover.

2. A centrifuge, characterized in that, It includes a rotary drive mechanism and an adapter as claimed in claim 1, wherein the adapter seat of the adapter is mounted on the rotating shaft of the rotary drive mechanism.

3. A grinding instrument, characterized in that, It includes an oscillation drive mechanism and an adapter as claimed in claim 1, wherein the adapter mount is mounted on the rocker arm of the oscillation drive mechanism.

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