CN209262023U - A kind of bottom plate and its thread bush - Google Patents
A kind of bottom plate and its thread bush Download PDFInfo
- Publication number
- CN209262023U CN209262023U CN201821768404.5U CN201821768404U CN209262023U CN 209262023 U CN209262023 U CN 209262023U CN 201821768404 U CN201821768404 U CN 201821768404U CN 209262023 U CN209262023 U CN 209262023U
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- annular wall
- bottom plate
- hole
- thread bush
- plate
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Abstract
The utility model discloses a kind of thread bush, including body, the side of body is disposed with first annular wall and the second annular wall, multiple jagged gaps are offered in the side wall surface of first annular wall, such as tooth-shape structure, when in force fit bottom plate hole, tooth form is tightly combined together with bottom plate bore edges, the two forms big frictional force, guarantee the concentricity of threaded hole, second annular wall is back taper, effect is when thread bush and bottom plate is interference fitted by pressure into bottom plate hole, due to back taper structure, prevent thread bush from deviating from pulling force or under the effect of bottom plate hole low pressure.When being mounted on bottom plate, bottom plate itself has plate body, through-hole is offered on plate body, first annular wall and the second annular wall are inserted into through-hole, first annular wall and the second annular wall and through-hole are interference fitted, to avoid using welding machine, it is ensured that coated plate, the overlay coating of stainless steel plate and appearance are not damaged.The invention also discloses a kind of bottom plates using above-mentioned thread bush.
Description
Technical field
The utility model relates to thread bush technical field more particularly to a kind of bottom plates and its thread bush.
Background technique
Existing fit structure is using welded nut, defect mainly have directly on steel plate (or other metal parts):
1, due to using welding manner, occurs welding fusing point on steel plate, for there is clad steel sheet (such as galvanized sheet) due to weldering
It connects, coating surface destroys, and gets rusty；There are solder joints for stainless steel surface, influence components appearance；
2, due to using welding, it is necessary to which using special equipments such as projection welders, operation limitation increases, without using in field dimension
Repair or assemble use；
3, due to such fit system, aperture is bigger than normal on steel plate, and decentraction phenomenon easily occurs in hole on welded nut and steel plate.
Utility model content
In view of this, avoiding using welding machine, it is ensured that the purpose of this utility model is to provide a kind of thread bush on surface
The appearance of coated plate (such as galvanized sheet), stainless steel plate, does not destroy overlay coating and appearance.The another object of the utility model is
A kind of bottom plate using above-mentioned thread bush is provided.
In order to achieve the above object, the utility model provides the following technical solutions:
A kind of thread bush, including body, the side of the body are disposed with first annular wall and the second annular wall,
In, multiple jagged gaps are offered in the side wall surface of the first annular wall, second annular wall is back taper.
Preferably, the diameter of the lesser end face of above-mentioned second annular wall is less than the outer diameter of the first annular wall.
Preferably, the diameter of the biggish end face of above-mentioned second annular wall is less than the outer diameter of the first annular wall.
It preferably, is tooth form in the side wall surface of above-mentioned first annular wall.
Preferably, the outer diameter of above-mentioned second annular wall is less than the outer diameter of the body.
Preferably, the uniform wall thickness of above-mentioned second annular wall.
The utility model also provides a kind of bottom plate, including plate body, further includes the thread bush as described in above-mentioned any one, institute
It states and offers through-hole on plate body, wherein the first annular wall and second annular wall are inserted into the through-hole, and described
One annular wall and second annular wall and the through-hole are interference fitted.
Preferably, diameter of the biggish end face diameter greater than the through-hole, second annular in above-mentioned second annular wall
Lesser end face diameter is less than the diameter of the through-hole on wall.
Preferably, above-mentioned plate body is coating plate body.
Preferably, above-mentioned plate body is stainless steel plate.
Thread bush provided by the utility model, including body, the side of the body be disposed with first annular wall and
Second annular wall, wherein multiple jagged gaps are offered in the side wall surface of the first annular wall, second annular wall is
Back taper.In use, being mounted on bottom plate, bottom plate itself has plate body, and through-hole, first annular wall and second are offered on plate body
Annular wall is inserted into the through-hole, and first annular wall and the second annular wall and the through-hole are interference fitted, the effect of thread bush
It is identical as the effect of welded nut, wherein the second annular wall is back taper, and main function is to pass through pressure in thread bush and bottom plate
When power is interference fitted into bottom plate hole, due to back taper structure, prevent thread bush from taking off in pulling force or under the effect of bottom plate hole low pressure
Out, secondly, offering multiple jagged gaps, such as tooth-shape structure in the side wall surface of first annular wall, pass through force fit bottom
When in plate hole, tooth form is tightly combined together with bottom plate bore edges, and the two forms big frictional force, while guaranteeing the same of threaded hole
Axis degree is avoided using welding machine, it is ensured that coated plate, the overlay coating of stainless steel plate and appearance are not damaged.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is this
Some embodiments of utility model, for those of ordinary skill in the art, without creative efforts, also
Other drawings may be obtained according to these drawings without any creative labor.
Fig. 1 is the structural schematic diagram of thread bush provided by the embodiment of the utility model；
Fig. 2 is the structural schematic diagram of bottom plate provided by the embodiment of the utility model.
In figure 1 above -2:
First annular wall 1, the second annular wall 2, body 3, plate body 4.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
Fig. 1-Fig. 2 is please referred to, Fig. 1 is the structural schematic diagram of thread bush provided by the embodiment of the utility model；Fig. 2 is this reality
With the structural schematic diagram for the bottom plate that new embodiment provides.
Thread bush provided by the embodiment of the utility model is a kind of back taper tooth form press fitting screw thread for substituting welded nut
Set, including body 3, the side of body 3 are disposed with first annular wall 1 and the second annular wall 2, wherein first annular wall 1
Multiple jagged gaps are offered in side wall surface, the second annular wall 2 is back taper.In use, being mounted on bottom plate, bottom plate itself
With plate body 4, through-hole is offered on plate body 4, first annular wall 1 and the second annular wall 2 are inserted into through-hole, first annular wall 1
It is interference fitted with the second annular wall 2 with through-hole, the effect of thread bush and the effect of welded nut are identical, wherein the second annular wall 2
For back taper, main function be when thread bush and bottom plate are interference fitted by pressure into bottom plate hole, it is anti-due to back taper structure
Only thread bush is deviate from pulling force or under the effect of bottom plate hole low pressure, secondly, offering in the side wall surface of first annular wall 1 more
A jagged gap, such as tooth-shape structure, when by force fit bottom plate hole, tooth form and bottom plate bore edges are tightly incorporated in one
It rises, the two forms big frictional force, while guaranteeing the concentricity of threaded hole, avoids using welding machine, it is ensured that coated plate, stainless steel
The overlay coating and appearance of plate are not damaged.
Wherein, the diameter of the lesser end face of the second annular wall 2 is less than the outer diameter of first annular wall 1.Second annular wall 2
The diameter of biggish end face is less than the outer diameter of first annular wall 1.The uniform wall thickness of second annular wall 2.Guarantee thread bush and bottom plate
Assembly intensity.
Specifically, being tooth form in the side wall surface of first annular wall 1.The outer diameter of second annular wall 2 is less than the outer diameter of body.The
The outer diameter of one annular wall 1 is less than the outer diameter of body.So that there are steps between thread bush external cylindrical surface and tooth-shape structure, in tooth form
After structure is completely into bottom plate hole, " T " shape structure is directly affixed with bottom plate, is guaranteed on thread bush between upper surface and base plate plane
Distance.And guarantee the assembly intensity of thread bush and bottom plate.
The utility model embodiment also provides a kind of bottom plate, including plate body 4, further includes such as above-mentioned any one embodiment institute
The thread bush stated offers through-hole on plate body 4, wherein first annular wall 1 and the second annular wall 2 are inserted into through-hole, the first ring
Shape wall 1 and the second annular wall 2 are interference fitted with through-hole.
Wherein, plate body 4 is coating plate body.It or is stainless steel plate.
In order to advanced optimize above scheme, in the second annular wall 2 biggish end face diameter be greater than through-hole diameter, second
Lesser end face diameter is less than the diameter of through-hole in annular wall 2.Guarantee the assembly intensity of thread bush and bottom plate.
Thread bush provided by the embodiment of the utility model is pressed thread bush for back taper tooth form, be it is a kind of with back taper and
The thread bush of zigzag structure is directly pressed into thread bush by pressure and is provided with dimensional fits hole steel plate (or zero, other metals
In part), advantage:
1, making it form mutual extrusion between steel plate hole using back taper and tooth-shape structure to cooperate, intensity is big, meanwhile, it avoids
Weld the weld mark that common welded nut generates, damage bottom cooperation steel plate (or other metal parts)；
2, this thread bush is applied in clad steel sheet or stainless steel plate, due to not using welding procedure, bottom surface of steel plate is not
Occur can avoid getting rusty due to welding hot spot；
3, this thread bush and steel plate compounding practice are simple, do not need welding machine etc., directly use press machine or simple pressing tool
(such as steel hammer)；
4, accurate positioning, guarantees threaded hole and bottom plate hole concentricity, and repair and replacement are convenient.
Thread bush provided by the embodiment of the utility model is pressed thread bush for back taper tooth form, makes full use of back taper and tooth form
Structure is pressed into this two kinds of structures in steel plate (or metal parts) matching hole by pressure, utilizes back taper and tooth form and steel plate
The interference extrusion frictional force generated between hole wall, fixes thread bush, wherein back taper structure prevents thread bush from falling off outward, tooth
Shape increases the frictional force with hole wall.Firmly thread bush is fixed in steel plate hole.
This structure thread set is matched, and is avoided using welding machine, it is ensured that overlay coating plate (such as galvanized sheet), stainless steel plate
Appearance does not destroy overlay coating and appearance.And the installation of such structure thread bush is easy to operate, maintenance replacement operation is convenient.
Such back taper tooth form is pressed thread bush, makes that its back taper structure, hole was formed on tooth-shape structure and bottom plate by pressure
It is full of cooperation, due to avoiding welding:
1, such screw thread nested structure can protective coating bottom plate (such as galvanized sheet), stainless steel plate surface occur solder joint, ablation,
The defects of getting rusty generation；
2, guarantee the concentricity between threaded hole and bottom plate hole simultaneously；
3, the two assembly is simple, only needs compression tools or steel hammer, convenient maintenance and replacement.
The back taper tooth-shape structure of such thread bush, protection backplate surface lossless assembly, operation simple with bottom plate assembly method
Simplified overhauling is convenient.
Thread bush provided by the embodiment of the utility model is compared with common welded nut, advantage:
1, assembly manipulation simple process between this thread bush and bottom plate, does not need welding machine and tooling；
2, coating bottom plate (such as galvanized sheet), stainless steel plate and this thread set timing, protection backplate surface are not damaged；
3, guarantee the concentricity of thread bush；
4, thread bush convenient maintenance and replacement is convenient for later period maintenance.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (10)
1. a kind of thread bush, including body, which is characterized in that the side of the body is disposed with first annular wall and second
Annular wall, wherein multiple jagged gaps are offered in the side wall surface of the first annular wall, second annular wall is back taper
Shape.
2. thread bush as described in claim 1, which is characterized in that the diameter of the lesser end face of second annular wall is less than
The outer diameter of the first annular wall.
3. thread bush as described in claim 1, which is characterized in that the diameter of the biggish end face of second annular wall is less than
The outer diameter of the first annular wall.
4. thread bush as described in claim 1, which is characterized in that be tooth form in the side wall surface of the first annular wall.
5. thread bush as described in claim 1, which is characterized in that the outer diameter of second annular wall is less than the outer of the body
Diameter.
6. thread bush as described in claim 1, which is characterized in that the uniform wall thickness of second annular wall.
7. a kind of bottom plate, including plate body, which is characterized in that further include such as above-mentioned screw thread as claimed in any one of claims 1 to 6
It covering, offers through-hole on the plate body, wherein the first annular wall and second annular wall are inserted into the through-hole,
The first annular wall and second annular wall and the through-hole are interference fitted.
8. bottom plate as claimed in claim 7, which is characterized in that biggish end face diameter is greater than described in second annular wall
The diameter of through-hole, lesser end face diameter is less than the diameter of the through-hole in second annular wall.
9. bottom plate as claimed in claim 7, which is characterized in that the plate body is coating plate body.
10. bottom plate as claimed in claim 7, which is characterized in that the plate body is stainless steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821768404.5U CN209262023U (en) | 2018-10-30 | 2018-10-30 | A kind of bottom plate and its thread bush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821768404.5U CN209262023U (en) | 2018-10-30 | 2018-10-30 | A kind of bottom plate and its thread bush |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209262023U true CN209262023U (en) | 2019-08-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821768404.5U Active CN209262023U (en) | 2018-10-30 | 2018-10-30 | A kind of bottom plate and its thread bush |
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| CN (1) | CN209262023U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109083914A (en) * | 2018-10-30 | 2018-12-25 | 浙江春风动力股份有限公司 | A kind of bottom plate and its thread bush |
-
2018
- 2018-10-30 CN CN201821768404.5U patent/CN209262023U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109083914A (en) * | 2018-10-30 | 2018-12-25 | 浙江春风动力股份有限公司 | A kind of bottom plate and its thread bush |
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