CN111389603A - Anti-loosening pressing mechanism, adapter, centrifugal machine and grinding instrument - Google Patents
Anti-loosening pressing mechanism, adapter, centrifugal machine and grinding instrument Download PDFInfo
- Publication number
- CN111389603A CN111389603A CN202010300554.9A CN202010300554A CN111389603A CN 111389603 A CN111389603 A CN 111389603A CN 202010300554 A CN202010300554 A CN 202010300554A CN 111389603 A CN111389603 A CN 111389603A
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- Prior art keywords
- loosening
- thimble
- gland
- adapter
- seat
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B15/00—Other accessories for centrifuges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Centrifugal Separators (AREA)
Abstract
The invention provides an anti-loosening compaction mechanism, an adapter, a centrifugal machine and a grinding instrument. Before the gland is screwed down, the anti-loosening limiting assembly is in an non-limiting state, so that the gland can be smoothly screwed on the anti-loosening seat; after the gland is screwed to the anti-loosening seat, the anti-loosening limiting assembly is switched to a limiting state to limit the gland to be loosened from the anti-loosening seat, so that the gland and the anti-loosening seat move together or vibrate to avoid the looseness of the gland, and the reliability of the anti-loosening pressing mechanism is improved. When the anti-loosening pressing mechanism is applied to a centrifugal machine or a grinding instrument rotating at a high speed, the test tube can be reliably pressed, the structure is simple, the operation is convenient, and the operation is reliable.
Description
Technical Field
The invention relates to an experimental auxiliary device, in particular to an anti-loosening pressing mechanism, an adapter, a centrifugal machine and a grinding instrument.
Background
The structure of general frequent dismouting often can take place not hard up phenomenon when being in the motion state, leads to the operation unreliable, and has the potential safety hazard. For example, the pressing structure of the adapter for grinding, centrifuging and other equipment needs to be frequently disassembled and screwed, the pressing force of the pressing structure is not large generally, the pressing structure is easy to loosen in the process of high-speed operation of the equipment, and the screwing structure is easy to damage if the equipment is excessively screwed for many times.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide an anti-loose pressing mechanism, an adapter, a centrifuge and a grinding instrument.
In order to achieve the purpose, the technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a locking hold-down mechanism, includes gland, locking seat and locking spacing subassembly, the gland passes through screw thread detachably and connects on the locking seat, locking spacing subassembly is used for the restriction along connecting thread's circumference relative movement between gland and the locking seat.
By adopting the technical scheme of the invention, before the gland is screwed down, the anti-loosening limiting assembly is in an non-limiting state, so that the gland can be smoothly screwed on the anti-loosening seat; after the gland is screwed to the anti-loosening seat, the anti-loosening limiting assembly is switched to a limiting state to limit the gland to be loosened from the anti-loosening seat, so that the gland and the anti-loosening seat move together or vibrate to avoid the looseness of the gland, and the reliability of the anti-loosening pressing mechanism is improved.
Further, be equipped with a plurality of thimble holes that become the circumference along connecting thread the central axis and distribute on the locking seat, locking spacing subassembly includes locking thimble, locking thimble cap and elastic element, locking thimble wears to locate in the mounting hole of gland, locking thimble cap is connected on the locking thimble, the elastic element both ends are supported respectively and are leaned on locking thimble with on the gland under elastic element's the effect, locking thimble head end can stretch into in the thimble hole on the locking seat.
By adopting the preferable scheme, when the anti-loosening thimble is embedded into the thimble hole of the anti-loosening seat, the gland cannot be circumferentially loosened relative to the anti-loosening seat, and the anti-loosening thimble cannot be separated from the thimble hole under the influence of movement or vibration under the action of the elastic element, so that the gland is ensured to be reliably compressed.
Furthermore, a boss/groove is arranged on the lower surface of the anti-loosening thimble cap, and a groove/boss matched with the boss/groove of the anti-loosening thimble cap is arranged on the gland; when the boss/groove of the anti-loosening thimble cap is matched with the groove/boss of the gland, the head end of the anti-loosening thimble extends into one thimble hole on the anti-loosening seat; when the boss/groove of the anti-loosening thimble cap and the groove/boss of the gland are in a staggered state, the head end of the anti-loosening thimble is separated from the thimble hole on the anti-loosening base.
By adopting the preferable scheme, before the gland is screwed to the anti-loosening seat, the surface of the boss is in plane contact with the outer opening of the groove, namely the boss is not embedded into the groove; after the gland is screwed to the anti-loosening seat and the object is compressed, the anti-loosening thimble cap is rotated by a certain angle, so that the boss is aligned with the groove, and at the moment, if the boss is not automatically embedded into the groove, the anti-loosening thimble can be aligned and enter the thimble hole of the anti-loosening seat by continuously rotating the gland by a certain angle, and then the boss is embedded into the groove.
Furthermore, the anti-loosening thimble cap or the groove of the gland is a long strip-shaped groove body which is communicated from left to right.
Adopt above-mentioned preferred scheme, make things convenient for the operator to see out the cooperation condition of boss and recess directly perceivedly, and then know the cooperation state of locking thimble and thimble hole.
An adapter, comprising:
the adapter seat is provided with at least one test tube sleeve, and the test tube is placed in the test tube sleeve;
the anti-loosening pressing mechanism is characterized in that an anti-loosening seat of the anti-loosening pressing mechanism is fixedly connected to the adapter seat, a pressing plate extending outwards is arranged on the periphery of a pressing cover of the anti-loosening pressing mechanism, and the pressing plate is pressed on the test tube cover.
Due to the adoption of the anti-loosening pressing mechanism, the pressing plate can still keep applying reliable pressing force to the test tube under long-time movement or vibration.
Furthermore, a baffle plate is arranged on the back surface of the gland, and the pressing plate is arranged between the gland and the baffle plate and can rotate circumferentially relative to the gland and the baffle plate.
By adopting the preferable scheme, the pressing plate and the gland can rotate relatively, after the pressing plate is contacted with the test tube, the static friction force between the pressing plate and the test tube is far greater than the friction force between the pressing plate and the gland, the pressing plate and the test tube are kept static, and the process of continuously screwing the gland for pressurization is more labor-saving.
A centrifugal machine comprises a rotary driving mechanism and the adapter, wherein the adapter of the adapter is arranged on a rotating shaft of the rotary driving mechanism in a seat mode.
Due to the adoption of the adapter, the test tube filled with the sample to be centrifuged can be reliably compressed, and the adapter is simple in structure, convenient to operate and reliable in operation.
The grinder comprises an oscillating drive mechanism and the adapter, wherein the adapter seat of the adapter is arranged on a swing arm of the oscillating drive mechanism.
Due to the adoption of the adapter, the test tube with the sample to be ground can be reliably compressed, and the adapter is simple in structure, convenient to operate and reliable in operation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of an embodiment of an adapter of the present invention in a position-limiting configuration;
FIG. 2 is a schematic perspective view corresponding to FIG. 1;
FIG. 3 is a schematic structural view of an embodiment of the adapter of the present invention in an unrestrained state;
FIG. 4 is a schematic perspective view corresponding to FIG. 3;
FIG. 5 is a schematic structural view of one embodiment of a check seat;
FIG. 6 is a schematic structural view of one embodiment of a gland;
FIG. 7 is a schematic structural view of one embodiment of a check thimble cap;
FIG. 8 is a schematic structural view of another embodiment of the anti-loose pressing mechanism in a limit releasing state;
FIG. 9 is a schematic structural view of another embodiment of the anti-loosening hold-down mechanism in a rotation limiting state;
FIG. 10 is a schematic view of the lower bottom surface of another embodiment of the gland;
FIG. 11 is a cross-sectional view of another embodiment of a jam-proof hold down mechanism.
Names of corresponding parts represented by numerals and letters in the drawings:
11-a gland; 111-grooves; 12-a platen; 13-a baffle; 20-a locking seat; 201-connecting screw thread; 202-thimble hole; 30-anti-loose limit component; 301-anti-loose thimble; 302-anti-loose thimble cap; 3021-boss; 303-a resilient element; 40-adapter seat; 401-test tube sleeve; 402-test tubes; 50-limiting and relieving magnetic attraction; 51-a limit needle; 52-sliding fixture block; 521-a bayonet slot; 53-chute.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the anti-loosening pressing mechanism comprises a pressing cover 11, an anti-loosening seat 20 and an anti-loosening limiting assembly 30, wherein the pressing cover 11 is detachably connected to the anti-loosening seat 20 through a connecting thread 201, and the anti-loosening limiting assembly 30 is used for limiting relative movement between the pressing cover 11 and the anti-loosening seat 20 along the circumferential direction of the connecting thread 201.
The beneficial effect of adopting above-mentioned technical scheme is: after the gland is screwed to the anti-loosening seat, the gland is limited to be loosened from the anti-loosening seat through the anti-loosening limiting assembly, so that the gland moves together with the anti-loosening seat or vibrates without causing the looseness of the gland, and the reliability of the anti-loosening pressing mechanism is improved.
As shown in fig. 1 to 5, in other embodiments of the present invention, a plurality of thimble holes 202 circumferentially distributed along a central axis of the connecting thread are disposed on the anti-loosening base 20, the anti-loosening limiting assembly 30 includes an anti-loosening thimble 301, an anti-loosening thimble cap 302 and an elastic element 303, the anti-loosening thimble 301 is inserted into the mounting hole of the gland 11, the anti-loosening thimble cap 302 is fixedly connected or rotatably connected to the anti-loosening thimble 301, two ends of the elastic element 303 respectively abut against the anti-loosening thimble 301 and the gland 11, and under the action of the elastic element 303, a head end of the anti-loosening thimble 301 can extend into one thimble hole 202 of the anti-loosening base 20. The beneficial effect of adopting above-mentioned technical scheme is: when the anti-loosening thimble 301 is inserted into the thimble hole 202 of the anti-loosening seat, the gland 11 will not circumferentially loosen relative to the anti-loosening seat 20, and under the action of the elastic element 303, the anti-loosening thimble 301 will not be separated from the thimble hole 202 under the influence of movement or vibration, thereby ensuring that the gland 11 is reliably pressed.
As shown in fig. 6 and 7, in other embodiments of the present invention, a boss 3021 is provided on the lower surface of the locking thimble cap 302, and a groove 111 matching with the boss 3021 of the locking thimble cap 302 is provided on the gland 11; when the boss 3021 of the anti-loosening thimble cap is matched with the groove 111 of the gland, the head end of the anti-loosening thimble 301 extends into a thimble hole 202 on the anti-loosening base 20; when the boss 3021 of the anti-loosening thimble cap and the groove 111 of the gland are in a staggered state, that is, when the surface of the boss 3021 collides with the outer plane of the opening of the groove 111, the head end of the anti-loosening thimble 301 is separated from the thimble hole 202 of the anti-loosening base. The beneficial effect of adopting above-mentioned technical scheme is: before the gland 11 is screwed to the anti-loosening seat 20, the anti-loosening thimble cap is lifted and rotated, so that the surface of the boss 3021 is in planar contact with the outer opening of the groove 111, namely, the boss 3021 is not embedded into the groove 111; after the gland 11 is screwed to the anti-loosening seat 20 and compresses an object, the anti-loosening thimble cap 302 is rotated by a certain angle, so that the boss 3021 is aligned with the groove 111, at this time, if the boss is not automatically embedded into the groove, the gland needs to be continuously rotated by a small certain angle, so that the anti-loosening thimble 301 is aligned with and enters the thimble hole 202 of the anti-loosening seat, and then the boss 3021 is embedded into the groove 111.
In other embodiments of the present invention, the groove 111 of the pressing cover 11 is a long groove body penetrating left and right. The beneficial effect of adopting above-mentioned technical scheme is: make things convenient for the operator to see out the cooperation condition of boss and recess directly perceivedly, and then know the cooperation state of locking thimble and thimble hole.
As shown in fig. 8 to 11, another embodiment of the anti-loose limiting assembly is shown, a plurality of limiting pins 51 distributed in a circumferential array are arranged on the lower surface of the gland 11, a plurality of sliding grooves 53 are arranged on the anti-loose seat 20, a sliding fixture block 52 is slidably mounted on each sliding groove 53, a bayonet groove 521 is formed at the outer circumferential end of each sliding fixture block 52, wherein the number of the limiting pins 51 is not equal to the number of the sliding fixture blocks 52, in fig. 11, 16 limiting pins 51 are provided, and the number of the sliding fixture blocks 52 is 15, so that the included angles between each two adjacent sets of the sliding fixture blocks 52 and the limiting pins 51 are different. After the gland 11 is screwed, and the working mode is opened, the anti-loosening pressing mechanism rotates integrally, the sliding fixture blocks 52 move radially away from the center under the action of centrifugal force, the head ends of the sliding fixture blocks 52 abut against the limiting needle 51, the bayonet grooves 521 of the sliding fixture blocks surround the limiting needle 51, and the bayonet grooves 521 surrounding the limiting needle 51 can prevent the gland from rotating relative to the anti-loosening seat 20 to prevent the gland from loosening. In addition, in order to smoothly return the sliding fixture blocks to the center after the machine is stopped so as to facilitate the operator to unscrew the gland, the machine further comprises a limit release magnet 50 which can be inserted into the center hole of the gland 11 and the center groove of the anti-loosening seat 20, when the limit release magnet 50 is in place, each sliding fixture block 52 can be attracted and retracted to the center position, and the bayonet groove 521 of each sliding fixture block 52 is far away from the limit pin 51 at the corresponding position so as to facilitate the unscrewing of the gland 11.
As shown in fig. 1-4, an adapter comprising:
the adapter seat 40 is provided with at least one test tube sleeve 401, and the test tube 402 is placed in the test tube sleeve 401;
the anti-loosening pressing mechanism is characterized in that the anti-loosening seat 20 of the anti-loosening pressing mechanism is fixedly connected to the adapter seat 40, the pressing plate 12 extending outwards is arranged on the periphery of the pressing cover 11 of the anti-loosening pressing mechanism, and the pressing plate 12 is pressed on the test tube cover of the test tube.
Due to the adoption of the anti-loosening pressing mechanism, the pressing plate can still keep applying reliable pressing force to the test tube under long-time movement or vibration.
In other embodiments of the invention, as shown in fig. 1, a baffle 13 is provided on the back of the gland 11, and the pressure plate 12 is disposed between the gland 11 and the baffle 13 and is rotatable circumferentially with respect to the gland 11 and the baffle 13. The beneficial effect of adopting above-mentioned technical scheme is: because the relative rotation between clamp plate and the gland, after clamp plate and test tube contact, because the static friction between clamp plate and the test tube is greater than the frictional force between clamp plate and the gland, clamp plate and test tube keep static, and it is also more laborsaving to continue to screw up the pressurized process of gland again.
A centrifugal machine comprises a rotary driving mechanism and the adapter, wherein the adapter of the adapter is arranged on a rotating shaft of the rotary driving mechanism in a seat mode.
Due to the adoption of the adapter, the test tube filled with the sample to be centrifuged can be reliably compressed, and the adapter is simple in structure, convenient to operate and reliable in operation.
The grinder comprises an oscillating drive mechanism and the adapter, wherein the adapter seat of the adapter is arranged on a swing arm of the oscillating drive mechanism.
Due to the adoption of the adapter, the test tube with the sample to be ground can be reliably compressed, and the adapter is simple in structure, convenient to operate and reliable in operation.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the present invention, and not to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the scope of the present invention.
Claims (8)
1. The utility model provides a locking hold-down mechanism, its characterized in that includes gland, locking seat and locking spacing subassembly, the gland passes through screw thread detachably and connects on the locking seat, locking spacing subassembly is used for the restriction along connecting thread's circumference relative movement between gland and the locking seat.
2. The anti-loosening pressing mechanism according to claim 1, wherein the anti-loosening seat is provided with a plurality of thimble holes circumferentially distributed along a central axis of the connecting thread, the anti-loosening limiting assembly comprises an anti-loosening thimble, an anti-loosening thimble cap and an elastic element, the anti-loosening thimble is inserted into the mounting hole of the pressing cover, the anti-loosening thimble cap is connected to the anti-loosening thimble, two ends of the elastic element are respectively abutted against the anti-loosening thimble and the pressing cover, and under the action of the elastic element, the head end of the anti-loosening thimble can extend into one thimble hole of the anti-loosening seat.
3. The anti-loosening pressing mechanism according to claim 2, wherein a boss/groove is provided on the lower surface of the anti-loosening thimble cap, and a groove/boss matching with the boss/groove of the anti-loosening thimble cap is provided on the pressing cover; when the boss/groove of the anti-loosening thimble cap is matched with the groove/boss of the gland, the head end of the anti-loosening thimble extends into one thimble hole on the anti-loosening seat; when the boss/groove of the anti-loosening thimble cap and the groove/boss of the gland are in a staggered state, the head end of the anti-loosening thimble is separated from the thimble hole on the anti-loosening base.
4. The anti-loosening pressing mechanism according to claim 3, wherein the anti-loosening thimble cap or the groove of the pressing cover is a long-strip-shaped groove body which is through from left to right.
5. An adapter, comprising:
the adapter seat is provided with at least one test tube sleeve, and the test tube is placed in the test tube sleeve;
the anti-loose pressing mechanism according to any one of claims 1 to 4, wherein an anti-loose seat of the anti-loose pressing mechanism is fixedly connected to the adapter seat, a pressing plate extending outwards is arranged on the periphery of a pressing cover of the anti-loose pressing mechanism, and the pressing plate is pressed and held on the test tube cover.
6. The adapter of claim 5 wherein the back of the gland is provided with a shield, and the pressure plate is disposed between and circumferentially rotatable relative to the gland and the shield.
7. A centrifuge comprising a rotary drive mechanism and an adapter according to claim 5 or 6, the adapter socket of the adapter being mounted on a shaft of the rotary drive mechanism.
8. A grinding apparatus comprising an oscillating drive mechanism and an adapter according to claim 5 or 6, the adapter mount of which is mounted on the swing arm of the oscillating drive mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010300554.9A CN111389603A (en) | 2020-04-16 | 2020-04-16 | Anti-loosening pressing mechanism, adapter, centrifugal machine and grinding instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010300554.9A CN111389603A (en) | 2020-04-16 | 2020-04-16 | Anti-loosening pressing mechanism, adapter, centrifugal machine and grinding instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111389603A true CN111389603A (en) | 2020-07-10 |
Family
ID=71416879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010300554.9A Pending CN111389603A (en) | 2020-04-16 | 2020-04-16 | Anti-loosening pressing mechanism, adapter, centrifugal machine and grinding instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111389603A (en) |
-
2020
- 2020-04-16 CN CN202010300554.9A patent/CN111389603A/en active Pending
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