CN214248039U - Miniature bearing shield suction nozzle - Google Patents
Miniature bearing shield suction nozzle Download PDFInfo
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- CN214248039U CN214248039U CN202023307549.5U CN202023307549U CN214248039U CN 214248039 U CN214248039 U CN 214248039U CN 202023307549 U CN202023307549 U CN 202023307549U CN 214248039 U CN214248039 U CN 214248039U
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Abstract
The utility model relates to a suction nozzle of a dust-proof cover of a miniature bearing in the technical field of miniature bearings, which comprises a shaft sleeve, an outer core, an inner core and a connecting sleeve; the inner surface of the shaft sleeve is step-shaped and comprises a first step and a second step, and a suction hole is formed between the second step and the lower end face of the shaft sleeve; the outer core is a T-shaped cylinder and comprises a first annular plate and an outer sleeve, a groove is formed around the outer periphery of the outer sleeve, first air holes are formed in the circumferential direction of the groove, the lower end face of the first annular plate is attached to the second step, and the air suction holes are communicated with the groove; the inner core is a T-shaped cylinder and comprises a second annular plate and an inner sleeve, the lower end face of the second annular plate is attached to the upper end face of the first annular plate, a gap is formed between the outer surface of the inner sleeve and the inner surface of the outer sleeve, and the end face of the inner sleeve is flush with or positioned in the end face of the outer sleeve; the outer peripheral surface of the connecting sleeve is in a boss shape, the second annular plate is sleeved in the connecting cylinder, and the boss surface of the connecting cylinder is attached to the first step. The utility model relates to an exquisiteness, the precision is high.
Description
Technical Field
The utility model relates to a miniature bearing technical field specifically, relates to a miniature bearing shield suction nozzle.
Background
The bearing is an important part in the modern mechanical equipment, and has the main functions of supporting the mechanical rotating body, reducing the friction coefficient in the motion process of the mechanical rotating body and ensuring the rotation precision of the mechanical rotating body. The size of the bearing is various, and the micro bearing is mainly used in the fields of various micro motors, precision instruments and the like.
In order to improve the production efficiency and the manufacturing precision of the miniature bearing, an intelligent full-automatic production line is a technical problem to be solved in the current miniature bearing, particularly the special miniature bearing manufacturing field. In the aspect of production technology, corresponding tools matched with each link are needed, and for example, in the installation process of the dust cover of the miniature bearing, the accurate and efficient adsorption transfer of the dust cover is a technical problem facing the prior art. In the prior art, because the dust cover used in the miniature bearing is small, the failure condition that the dust cover is not adsorbed in place often occurs, in addition, the adsorption condition of the dust cover is often corrected through manual work, and the working efficiency and the working precision are difficult to adapt to an intelligent full-automatic production line.
At present, relevant working structures of the bearing inner ring pressing device at home and abroad are not searched.
SUMMERY OF THE UTILITY MODEL
To the defect among the prior art, the utility model aims at providing a miniature bearing shield suction nozzle.
According to the utility model, the suction nozzle of the miniature bearing dust cap comprises a shaft sleeve, an outer core, an inner core and a connecting sleeve;
the inner surface of the shaft sleeve is step-shaped and comprises a first step and a second step, and a suction hole is formed between the second step and the lower end face of the shaft sleeve;
the outer core is a T-shaped cylinder and comprises a first annular plate and an outer sleeve, a groove is formed in the periphery of the outer sleeve in a surrounding mode, first air holes are formed in the circumferential direction of the groove, the lower end face of the first annular plate is attached to the second step, and the air suction holes are communicated with the groove;
the inner core is a T-shaped cylinder and comprises a second annular plate and an inner sleeve, the lower end face of the second annular plate is attached to the upper end face of the first annular plate, a gap is formed between the outer surface of the inner sleeve and the inner surface of the outer sleeve, and the end face of the inner sleeve is flush with the end face of the outer sleeve or is positioned within the end face of the outer sleeve;
the outer peripheral surface of the connecting sleeve is of a boss shape, the second annular plate is sleeved in the connecting cylinder, and the boss surface of the connecting cylinder is attached to the first step.
In some embodiments, the inner surface of the air suction hole from the lower end face of the shaft sleeve is in interference fit with the outer surface of the groove from the lower end of the outer sleeve, and the surface of the first step from the upper end face of the shaft sleeve is in interference fit with the outer surface of the connecting sleeve.
In some embodiments, the outer circumferential surface of the inner sleeve is a boss type, and includes a first inner sleeve body and a second inner sleeve body, the first inner sleeve body is located between the second ring plate and the second inner sleeve body, the outer surface of the first inner sleeve body contacts the inner surface of the outer sleeve, and the first air hole is located in the outer circumferential surface of the second inner sleeve body.
In some embodiments, a limiting plate is arranged in the connecting sleeve, and the upper end surface of the second ring plate is in contact with the lower end surface of the limiting plate.
In some embodiments, a pressure relief hole is formed between the second step and the first step, and external air enters the groove along the inner wall of the shaft sleeve after passing through the pressure relief hole.
In some embodiments, the connecting sleeve is provided with an air inlet, the second ring plate is provided with a second air hole, and the limiting plate is provided with a third air hole, wherein the second air hole is communicated with the third air hole in an abutting mode.
In some embodiments, the third air hole is a convex-shaped hole, and the diameter of the hole on the side away from the second air hole is smaller than that of the hole on the side connected with the second air hole.
In some embodiments, the inner cavity of the inner sleeve is tapered and the second air hole is a vertex of the inner cavity of the inner sleeve.
In some embodiments, a fixing hole is provided between the first step and the upper end surface of the shaft sleeve, and 1 or more fixing holes are provided along the circumferential direction of the shaft sleeve.
In some embodiments, the outer circumference of the end of the outer sleeve is a boss structure.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model discloses miniature bearing shield suction nozzle design is exquisite, simple structure, and adsorption effect is good, can cooperate miniature bearing automated production equipment and technology well.
2. The utility model discloses miniature bearing shield suction nozzle can be after the absorption and the transfer action of accomplishing the shield through setting up the pressure release hole for by the automatic predetermined station that drops of absorbent shield, further improve mechanization, degree of automation.
3. The utility model discloses miniature bearing shield suction nozzle is through setting up corresponding structure of blowing on adapter sleeve and inner core, can make the shield that is sucked up at every turn for single, prevents to lead to adsorbing the operation inefficacy because of adsorbing a plurality of shields that overlap, improves operation precision and efficiency.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic view of the explosion structure of the suction nozzle of the dust-proof cover of the miniature bearing of the present invention;
FIG. 2 is a schematic view of the overall structure of the suction nozzle of the dust-proof cover of the miniature bearing of the present invention;
FIG. 3 is a schematic view of the shaft sleeve structure of the suction nozzle of the dust cap of the miniature bearing of the present invention;
FIG. 4 is a schematic view of the structure of the outer core of the suction nozzle of the dust cap of the miniature bearing of the present invention;
FIG. 5 is a schematic view of the structure of the inner core of the suction nozzle of the dust-proof cover of the miniature bearing of the present invention;
FIG. 6 is a schematic side view of the inner core of the suction nozzle of the dust cap of the miniature bearing of the present invention;
fig. 7 is a schematic view of the structure of the suction nozzle connecting sleeve of the dust-proof cover of the miniature bearing of the present invention.
Detailed Description
The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.
Example 1
The utility model provides a miniature bearing shield suction nozzle mainly includes axle sleeve 1, outer core 2, inner core 3 and connecting sleeve 4. The shaft sleeve 1 is of a nut-shaped cylindrical structure, and the preferable outer peripheral surface of the shaft sleeve 1 is of a prismatic shape with a plane and an arc surface arranged at intervals. The inner peripheral surface of axle sleeve 1 is the step form, and step form structure sets up along the axial of axle sleeve 1, including first step 11 and second step 12, and first step 11 and second step 12 set gradually the interior surface of the step form of axle sleeve 1 from the up end of axle sleeve 1 to the lower terminal surface. Be provided with suction hole 15 between second step 12 to axle sleeve 1 lower terminal surface, suction hole 15 sets up along axle sleeve 1 radially, and the suction hole 15 that distributes between second step 12 to axle sleeve 1 lower terminal surface is provided with 1 or a plurality ofly along axle sleeve 1's circumference, and when setting up a plurality of suction holes 15, but the equipartition sets up also the non-equipartition sets up.
The outer core 2 comprises a first ring plate 21 and an outer sleeve 22, the outer diameter of the end of the outer sleeve 22 is smaller than that of the first ring plate 21, and the first ring plate 21 is connected with the end of the outer sleeve 22 to form the outer core 2 of a T-shaped cylinder structure. A groove 220 is provided around the circumference of the outer sleeve 22 at a distance from the lower end of the first ring plate 21 in the direction toward the free end of the outer sleeve 22, and at the same time, a first air hole 2201 is provided along the circumference of the groove 220. By the lower end face of the first ring plate 21 is meant the end face of the first ring plate 21 that is in contact with the outer sleeve 22. The first gas holes 2201 are used to achieve gas exchange between the inside and outside of the cylinder of the outer sleeve 22. After the outer core 2 is sleeved in the shaft sleeve 1, the lower end surface of the first annular plate 21 is attached to the second step 12, the air suction hole 15 is opposite to the groove 220, and the inner surface of the shaft sleeve 1 positioned below the air suction hole 15 and the outer surfaces of the outer sleeves 22 positioned on the upper side and the lower side of the groove 220 are respectively contacted with the inner surfaces of the shaft sleeve 1 on the upper side and the lower side of the air suction hole 15.
The inner core 3 comprises a second ring plate 31 and an inner sleeve 32, the outer diameter of the end of the inner sleeve 32 is smaller than that of the second ring plate 31, and the second ring plate 31 is connected with the end of the inner sleeve 32 to form the inner core 3 with a T-shaped cylinder structure. The inner sleeve 32 of the inner core 3 is sleeved in the outer sleeve 22 of the outer core 2, and the lower end surface of the second annular plate 31 and the upper end surface of the first annular plate 21. After the inner core 3 is connected with the outer core 2, a gap is arranged between the outer surface of the inner sleeve 32 and the inner surface of the outer sleeve 22, the lower end face of the inner sleeve 32 is located in the lower end face of the outer sleeve 22, or the end face of the free end of the inner sleeve 32 is flush with the end face of the free end of the outer sleeve 22, and then the dust cap to be adsorbed is attached to the end face of the outer sleeve 22, or the dust cap is located in the end face of the outer sleeve 22, the outer edge of the dust cap is located outside the end face of the inner sleeve 32, and the dust cap is adsorbed by the adsorption force of the adsorption gas passing through the annular gap between the outer surface of the inner sleeve 32 and the inner surface of the outer sleeve 22. Preferably, the lower end surface of the inner sleeve 32 is located within the lower end surface of the outer sleeve 22, and the inner diameter of the outer sleeve 22 is matched with the outer diameter of the dust cap to be adsorbed, so that the adsorbed dust cap can be located within the outer sleeve 22 during adsorption, the adsorption effect is improved, meanwhile, the dust cap is prevented from being collided with an external object and falling off, and the operation efficiency is improved.
The outer peripheral surface of connecting sleeve 4 is the boss type, and the external diameter of second ring board 31 and the internal diameter of connecting sleeve 4 are mutually supported, and second ring board 31 is located the inside of connecting sleeve 4 boss one end, and the outer peripheral surface of second ring board 31 and the inner peripheral surface of connecting sleeve 4 accessible interference fit, or the inner peripheral surface of connecting sleeve 4 has certain slope or tapering for second ring board 31 and connecting sleeve 4 can keep relative fixedly. The step surface of the boss of the connecting sleeve 4 is attached to the first step 11, and the part of the outer peripheral surface between the step surface of the boss of the connecting sleeve 4 and the upper end surface of the connecting sleeve 4 is in contact with the inner peripheral surface between the first step 11 and the upper end surface of the shaft sleeve 1. The connection of the connecting sleeve 4 to the bushing 1 is preferably: a fixing hole 13 is formed in the shaft sleeve 1, the fixing hole 13 is located between the first step 11 and the upper end face of the shaft sleeve 1, the fixing hole 13 is preferably a screw hole, and after the fastening screw rod passes through the fixing hole 13, the end face of the fastening screw rod abuts against the outer peripheral face of the connecting sleeve 4. Preferably, the fixing holes 13 are arranged along the circumferential direction of the shaft sleeve 1, and the fixing holes 13 are uniformly distributed along the circumferential direction of the shaft sleeve 1, so that the fastening connection of the connecting sleeve 4 and the shaft sleeve 1 is uniform in stress and good in fastening effect.
The working principle of the micro-bearing dust cap suction nozzle device provided by the embodiment is as follows:
the dust cap suction nozzle device is connected or communicated with an external tool through the connecting sleeve 4, the suction hole 15 of the shaft sleeve 1 is externally connected with a suction device, and external air enters the groove 220 through the first air hole 2201 after entering from a circular seam between the inner circumferential surface of the outer sleeve 22 and the outer circumferential surface of the inner sleeve 32 under the suction action of the suction device, and then enters the suction hole 15 through the groove 220 to finish suction. At this time, an adsorption force is generated between the outer sleeve 22 and the inner sleeve 32, that is, an adsorption force is generated at an opening end of the circumferential seam between the outer sleeve 22 and the inner sleeve, and the opening end of the circumferential seam is contacted with the cover surface of the dust cap, so that the dust cap is sucked up, and the adsorption and transfer operations of the dust cap are completed. The utility model discloses miniature bearing shield suction nozzle device design is exquisite, simple structure, and adsorption effect is good, can cooperate miniature bearing automated production equipment and technology well.
Preferably, in order to improve the adsorption effect, the inner surface from the air suction hole 15 to the lower end surface of the shaft sleeve 1 and the outer surface from the groove 220 to the lower end surface of the outer sleeve are designed to be in interference fit, so that when air is sucked through the air suction hole 15, the sucked air composition is basically free from components entering through the gap between the lower end of the shaft sleeve 1 and the lower end of the outer sleeve 22. Still further, the surface of first step 11 to axle sleeve 1 up end and the surface of connecting sleeve 4 also design for interference fit, and at this moment, the gaseous composition of suction just can not exist the composition that gets into through the clearance of axle sleeve 1 upper end and connecting sleeve 4 lower extreme yet to improve the adsorption affinity of the circumferential weld between outer sleeve 22 and the inner skleeve 32 to the at utmost, improve the absorption firmness to the shield.
It is further preferable that the outer circumferential surface of the inner sleeve 32 is designed to have a boss-type structure, and mainly includes a first inner sleeve body 320 and a second inner sleeve body 321. The first ring plate 21, the first inner sleeve body 320 and the second inner sleeve body 321 are connected in sequence, and the outer diameter of the first inner sleeve body 320 is larger than that of the second inner sleeve body 321. After the inner sleeve 32 is disposed inside the outer sleeve 22, the outer surface of the first inner sleeve 320 contacts the inner surface of the outer sleeve 22, and at this time, an annular gap is formed between the outer surface of the second inner sleeve 321 and the inner surface of the outer sleeve 22, and the first air hole 2201 is located in the outer peripheral surface of the second inner sleeve 321. The inner sleeve 32 is designed to have a boss-shaped structure, and the outer diameter of the inner sleeve 32 positioned at the upper end of the first air hole 2201 is enlarged to contact the inner surface of the outer sleeve 22, so that the suction force of the circumferential seams is further increased by reducing the amount of air entering in other directions when the suction dust cap is operated.
Preferably, a position limiting plate 41 is arranged in the connecting sleeve 4, the position of the position limiting plate 41 is located at a boss part of the connecting sleeve 4, and after the second ring plate 31 is arranged on the inner circumferential surface of the boss of the connecting sleeve 4, the upper end surface of the second ring plate 31 is in contact with the lower end surface of the position limiting plate 41. When can effectively preventing to adsorb the shield through limiting plate 41, outer core 2 and inner core 3 take place to remove along the axial under the gaseous thrust effect in the circumferential weld, and then ensure through the adsorption effect, for through connecting barrel 4 interior peripheral face toper or interference fit with it, can further improve the fixed firmness of interior outer core position, ensure the operation precision.
Preferably, the outer circumference of the end of the outer sleeve 32 is designed as a boss structure, and further may be designed as a boss structure with a chamfer. The end of the outer sleeve 32 is designed to be a boss structure, so that the effective stroke can avoid the space.
Example 2
This embodiment 2 forms on embodiment 1's basis, through setting up the pressure release hole, can be after accomplishing the absorption and the transfer action of shield for the shield that is adsorbed drops to predetermined station automatically, further improves mechanization, degree of automation. Specifically, the method comprises the following steps:
a pressure relief hole 14 is formed between the second step 12 and the first step 11, and at this time, a small gap exists between the outer circumferential surface of the boss of the connecting sleeve 4 and the outer circumferential surface of the first ring plate 21 and the inner circumferential surface of the sleeve 1 between the second step 12 and the first step 11. This small clearance is used for outside gas to pass through pressure release hole 14 back, in the inner wall along axle sleeve 1 gets into recess 220 downwards, and then gets into the circumferential weld through first gas pocket 2201 in for when accomplishing the absorption action and stopping breathing in, the negative pressure in the circumferential weld is eliminated through the entering of outside gas, and then makes by inside and outside pressure balance of adsorbed shield, drops to predetermined station through self gravity.
Example 3
the connecting sleeve 4 is provided with an air inlet 42, the second ring plate 31 is provided with a through hole second air hole 310, and the limiting plate 41 is provided with a through hole third air hole 410. The second air hole 310 and the third air hole 410 are preferably central through holes, and after the second ring plate 31 is contacted with the limiting plate 41, the second air hole 310 and the third air hole 410 are in opposite contact communication. When the suction device sucks the dust cap through the suction hole 15, the groove 220, the first air hole 2201 and the circular seam between the outer sleeve 22 and the inner sleeve 32, the air is blown through the air feeding device to the end part through the air inlet hole 42, the third air hole 410 and the second air hole 310 and the barrel body of the inner sleeve 32, the sucked dust cap is blown, and the dust cap can move downwards axially through the adjustment of air inflow, and the moving amount of the dust cap is slight. Because the phenomenon of instantaneous drop takes place under the effect of gas blowing power by absorbent shield, if by absorbent shield be a plurality of times, then lie in outer shield and drop under the action of gravity owing to lose the adsorption affinity, nevertheless close on the shield of the terminal surface of the circumferential weld that forms between outer sleeve 22 and the inner skleeve 32 and do not drop under the effect of adsorption affinity, can be adsorbed again, and then ensure that the adsorbed shield is single at every turn, promote the precision and the efficiency of adsorbing the operation.
Preferably, the third air hole 410 is designed as a convex-shaped hole or a horn-shaped hole, the aperture of the side facing away from the second air hole 310 is smaller, and the aperture of the air hole in contact with the second air hole 310 is larger. Under the design, when the gas entering from the gas inlet 42 enters the cylinder body of the inner sleeve 32 through the third gas hole 410 and the second gas hole 310, the thrust formed by the blown gas tends to be uniformly distributed along the inner cavity of the inner sleeve 32 in a diameter expanding mode, the working failure caused by overlarge acting force or offset acting point of the dust cover due to transition and concentration of blowing force is avoided, and the working precision is improved.
Further, the inner cavity of the inner sleeve 32 is tapered, and the second air hole 320 thereof serves as a tapered tip of the inner cavity of the inner sleeve 32. The inner cavity of the inner sleeve 32 is designed to be conical, so that blowing force can be dispersed to the inner surface to the maximum extent and can be uniformly transmitted downwards along the inner surface, further, the blowing force is enabled to axially move mainly by blowing the annular outer ring of the adsorbed dust cover, and the problem of operation failure caused by the concentrated effect of the blowing force is basically eliminated.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (10)
1. A suction nozzle of a dust cover of a miniature bearing is characterized by comprising a shaft sleeve (1), an outer core (2), an inner core (3) and a connecting sleeve (4);
the inner surface of the shaft sleeve (1) is step-shaped and comprises a first step (11) and a second step (12), and a suction hole (15) is formed between the second step (12) and the lower end surface of the shaft sleeve (1);
the outer core (2) is a T-shaped cylinder and comprises a first annular plate (21) and an outer sleeve (22), a groove (220) is formed in the periphery of the outer sleeve (22) in a surrounding mode, first air holes (2201) are formed in the circumferential direction of the groove (220), the lower end face of the first annular plate (21) is attached to the second step (12), and the air suction holes (15) are communicated with the groove (220);
the inner core (3) is a T-shaped cylinder and comprises a second annular plate (31) and an inner sleeve (32), the lower end face of the second annular plate (31) is attached to the upper end face of the first annular plate (21), a gap is formed between the outer surface of the inner sleeve (32) and the inner surface of the outer sleeve (22), and the end face of the inner sleeve (32) is flush with the end face of the outer sleeve (22) or is positioned in the end face of the outer sleeve (22);
the outer peripheral surface of the connecting sleeve (4) is in a boss shape, the second annular plate (31) is sleeved in the connecting sleeve (4), and the boss surface of the connecting sleeve (4) is attached to the first step (11).
2. The micro-bearing dust cap nozzle as claimed in claim 1, wherein the inner surface from the air suction hole (15) to the lower end surface of the shaft sleeve (1) is in interference fit with the outer surface from the groove (220) to the lower end of the outer sleeve (22), and the surface from the first step (11) to the upper end surface of the shaft sleeve (1) is in interference fit with the outer surface of the connecting sleeve (4).
3. The micro bearing dust cap nozzle according to claim 1 or 2, wherein the outer circumferential surface of the inner sleeve (32) is of a boss type, and comprises a first inner sleeve body (320) and a second inner sleeve body (321), the first inner sleeve body (320) is located between the second ring plate (31) and the second inner sleeve body (321), the outer surface of the first inner sleeve body (320) is in contact with the inner surface of the outer sleeve (22), and the first air holes (2201) are located in the outer circumferential surface of the second inner sleeve body (321).
4. The micro-bearing dust cap nozzle according to claim 1 or 2, wherein a limiting plate (41) is arranged in the connecting sleeve (4), and the upper end surface of the second annular plate (31) is in contact with the lower end surface of the limiting plate (41).
5. The suction nozzle of the micro-bearing dust cap as claimed in claim 1, wherein a pressure relief hole (14) is formed between the second step (12) and the first step (11), and external air enters the groove (220) along the inner wall of the shaft sleeve (1) after passing through the pressure relief hole (14).
6. The suction nozzle of claim 4, wherein the connection sleeve (4) is provided with an air inlet (42), the second ring plate (31) is provided with a second air hole (310), the limiting plate (41) is provided with a third air hole (410), and the second air hole (310) is communicated with the third air hole (410).
7. The micro-bearing suction nozzle for dust caps as recited in claim 6, wherein the third air hole (410) is a hole having a shape of a letter-raised, and the diameter of the air hole facing away from the second air hole (310) is smaller than the diameter of the air hole facing the second air hole (310).
8. The micro-bearing dust cap nozzle according to claim 6 or 7, wherein the inner cavity of the inner sleeve (32) is tapered and the second air hole (310) is the apex of the inner cavity of the inner sleeve (32).
9. The micro-bearing dust cap nozzle according to claim 1, wherein a fixing hole (13) is provided between the first step (11) and the upper end surface of the shaft sleeve (1), and 1 or more fixing holes (13) are provided along the circumferential direction of the shaft sleeve (1).
10. The micro-bearing dust cap nozzle of claim 1, wherein the outer peripheral surface of the end of the outer sleeve (22) is a boss structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023307549.5U CN214248039U (en) | 2020-12-30 | 2020-12-30 | Miniature bearing shield suction nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023307549.5U CN214248039U (en) | 2020-12-30 | 2020-12-30 | Miniature bearing shield suction nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214248039U true CN214248039U (en) | 2021-09-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023307549.5U Active CN214248039U (en) | 2020-12-30 | 2020-12-30 | Miniature bearing shield suction nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214248039U (en) |
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2020
- 2020-12-30 CN CN202023307549.5U patent/CN214248039U/en active Active
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