CN108953319B - Connection structure - Google Patents
Connection structure Download PDFInfo
- Publication number
- CN108953319B CN108953319B CN201710365834.6A CN201710365834A CN108953319B CN 108953319 B CN108953319 B CN 108953319B CN 201710365834 A CN201710365834 A CN 201710365834A CN 108953319 B CN108953319 B CN 108953319B
- Authority
- CN
- China
- Prior art keywords
- pore canal
- leading
- main body
- out end
- counter bore
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000011148 porous material Substances 0.000 claims abstract description 74
- 239000000758 substrate Substances 0.000 claims abstract description 18
- 230000000670 limiting effect Effects 0.000 claims description 15
- 238000000605 extraction Methods 0.000 abstract description 12
- 239000011159 matrix material Substances 0.000 abstract description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B4/00—Shrinkage connections, e.g. assembled with the parts at different temperature; Force fits; Non-releasable friction-grip fastenings
- F16B4/004—Press fits, force fits, interference fits, i.e. fits without heat or chemical treatment
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention relates to the technical field of mechanical structures, in particular to a connecting structure, which comprises a leading-out end and a matrix matched with the leading-out end; the extraction end comprises an extraction end main body, the substrate comprises a pore canal which is tightly matched with the extraction end main body, the pore canal comprises a pore canal inlet end and a pore canal outlet end, the pore canal outlet end is provided with a second counter bore, the inner diameter of the second counter bore is larger than the inner diameter of the pore canal, the joint of the second counter bore and the pore canal comprises a first table top, the first table top gradually keeps away from the pore canal outlet end from the inner edge to the outer edge of the first table top forms an inclined plane, and the extraction end 1 is inserted from the pore canal inlet end and extends out from the pore canal outlet end during assembly; the connecting structure is simple in structure, reliable in connection and free from scraps during assembly.
Description
Technical Field
The invention relates to the technical field of mechanical structures, in particular to a connecting structure.
Background
When the existing electromechanical product is assembled, most of the leading-out ends are inserted from one side of the hole channel of the base body, or the assembling position of the leading-out ends is kept by the holding force of the base body to the leading-out ends, or the saw teeth on two sides of the leading-out ends are clamped in the hole channel of the base body to keep the assembling position of the leading-out ends, when the leading-out ends extend out of the hole channel of the base body, the outlet ends of the hole channel are extremely easy to generate fragments under the extrusion and scraping of the leading-out ends, and the fragments can influence the working reliability of the electromechanical product.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the connecting structure which has the advantages of simple structure, reliable connection and no generation of scraps during assembly.
A connection structure, which comprises a leading-out end 1 and a base body 2 matched with the leading-out end 1; the extraction end 1 comprises an extraction end main body 10, the substrate 2 comprises a pore canal 22 tightly matched with the extraction end main body 10, the pore canal 22 comprises a pore canal inlet end and a pore canal outlet end, the pore canal outlet end is provided with a second counter bore 23, the inner diameter of the second counter bore 23 is larger than the inner diameter of the pore canal 22, a first table surface 230 is formed at the joint of the second counter bore 23 and the pore canal 22, the first table surface 230 gradually separates from the pore canal outlet end from the inner edge to the outer edge, and the extraction end 1 is inserted from the pore canal inlet end and extends from the pore canal outlet end during assembly.
Preferably, the second counterbore 23 and the hole 22 are matched to form a funnel structure, and the first mesa 230 is a slope with a constant absolute value of the slope, or an arc surface with a gradually decreasing absolute value of the slope from the outer edge to the inner edge of the first mesa 230.
Preferably, a clamping table 11 is arranged at one side of the terminal body 10, and the terminal body 10 is matched with the hole channel 22 through the clamping table 11.
Preferably, 0< the height of the clamping table 11 is less than or equal to 2/3 of the outer diameter of the terminal body 10.
Preferably, rounded corners are arranged on edges of the clamping table 11, and a buffer groove 110 is arranged on one side of the leading-out end main body 10, which is positioned on the opposite side of the clamping table 11.
Preferably, the included angle between the inner side surface of the second counter bore 23 and the first table top 230 is alpha, and alpha is more than or equal to 95 degrees and less than or equal to 135 degrees.
Preferably, a limit boss 12 matched with the outer side surface of the inlet end of the duct is arranged on one side of the leading-out end main body 10.
Preferably, the base 2 includes a first counterbore 21 disposed at an inlet end of the hole, and the first counterbore 21 has an inner diameter greater than an inner diameter of the hole 22. The first counterbore 21 is configured to receive the limiting boss 12.
Preferably, the height of the limiting boss 12 is more than or equal to 1/2 of the outer diameter of the leading-out end main body 10.
Preferably, a clamping table 11 is arranged on one side of the lead-out end main body 10 of the lead-out end 1, a limiting boss 12 is arranged on one side of the lead-out end main body 10 outside one end of the clamping table 11, and the lead-out end main body 10 is in interference fit with the pore canal 22 through the clamping table 11; the inlet end of the hole 22 is provided with a first counter bore 21 for accommodating the limit boss 12.
The connecting structure comprises a leading-out end and a base body, wherein the base body is provided with a pore canal, the pore canal comprises a pore canal inlet end and a pore canal outlet end, the pore canal outlet end is provided with a second counter bore, the inner diameter of the second counter bore is larger than the inner diameter of the pore canal, the connecting part of the second counter bore and the pore canal comprises a first table top, the first table top gradually keeps away from the outlet end of the pore canal from the inner edge to the outer edge of the first table top to form an inclined plane, and the situation that when the leading-out end extends out of the outlet end of the pore canal, the base body outside the outlet end of the pore canal is damaged and chippings are generated due to extrusion and scraping of the leading-out end is avoided. In addition, a clamping table is arranged on one side of the leading-out end main body and in interference fit with the pore canal, so that the leading-out end is more stably and reliably matched with the base body; the buffer groove is convenient for the clamping table to generate benign elastic deformation when entering the pore canal, so that the assembly of the leading-out end and the matrix is simpler, more convenient and smoother; the edges of the clamping tables are provided with round corners, so that the clamping tables can conveniently enter the pore canal, and friction between the clamping tables and the pore canal is reduced.
Drawings
FIG. 1 is a schematic view of a connection structure of the present invention;
FIG. 2 is a schematic view of the structure of part A of FIG. 1 according to the present invention;
FIG. 3 is a schematic view of the structure of the outlet of the present invention;
FIG. 4 is a schematic structural view of the substrate of the present invention;
FIG. 5 is another schematic view of the structure of the outlet of the present invention;
FIG. 6 is a schematic view of another construction of the substrate of the present invention.
Detailed Description
The following is a further explanation of embodiments of the connection structure according to the invention, given by way of example with reference to the accompanying figures 1 to 6. The connection structure of the present invention is not limited to the description of the following embodiments.
The connecting structure comprises a leading-out end 1 and a base body 2 matched with the leading-out end 1; the extraction end 1 comprises an extraction end main body 10, the substrate 2 comprises a pore canal 22 tightly matched with the extraction end main body 10, the pore canal 22 comprises a pore canal inlet end and a pore canal outlet end, the pore canal outlet end is provided with a second counter bore 23, the inner diameter of the second counter bore 23 is larger than the inner diameter of the pore canal 22, a first table surface 230 is formed at the joint of the second counter bore 23 and the pore canal 22, the first table surface 230 gradually separates from the pore canal outlet end from the inner edge to the outer edge, and the extraction end 1 is inserted from the pore canal inlet end and extends from the pore canal outlet end during assembly. According to the connecting structure, the second counter bore 23 is arranged at the outlet end of the pore canal 22, the inner diameter of the second counter bore 23 is larger than the inner diameter of the pore canal 22, when the leading-out end main body 10 extends out of the pore canal outlet end of the pore canal 22, the substrate 2 at the outlet end of the pore canal can be provided with the tearing piece 30 shown in figure 2 under the scratch of the leading-out end main body 10, the first table 230 is gradually far away from the outlet end of the pore canal from the inner edge to the outer edge of the first table 230, so that the thickness L2 at the starting end of the tearing piece 30 is smaller than the thickness L1 at the tail part of the tearing piece 30, and therefore the tearing piece 30 cannot be separated from the substrate 2, namely, the occurrence of chipping during the assembly of the leading-out end 1 and the substrate 2 is avoided; further, when the connecting structure is applied to the electromechanical product, the situation that the working reliability of the electromechanical product is affected by scraps generated by assembly does not occur. The connecting structure according to the invention can be used for the assembly of a mechanical indicating mechanism of a small electromagnetic relay.
As shown in fig. 1 and 2, is one embodiment of the connection structure of the present invention.
The connection structure of the present invention includes a base body 2 and a lead-out terminal 1 disposed at the middle of the base body 2 to be engaged therewith, as shown in the directions of fig. 1 and 2. The substrate 2 comprises a pore canal 22 arranged in the middle of the substrate, a second counter bore 23 is arranged at the upper end (namely the outlet end of the pore canal) of the pore canal 22, the inner diameter of the second counter bore 23 is larger than the inner diameter of the pore canal 22, the second counter bore 23 and the pore canal 22 are matched into a funnel-shaped structure, a first table top 230 is formed at the joint of the second counter bore 23 and the pore canal 22, the outer edge of the first table top 230 is higher than the inner edge of the first table top 230, and the first table top 230 is an annular inclined surface which gradually inclines downwards from the outer edge to the inner edge of the first table top 230. The terminal 1 includes a terminal body 10, and an outer diameter of the terminal body 10 matches an inner diameter of the duct 22. When assembled, the terminal body 10 of the terminal 1 is inserted from the lower end (i.e., the port entrance end) of the port 22 and protrudes from the upper end (i.e., the port exit end) of the port 22.
Preferably, as shown in fig. 2, the first mesa 230 is an annular slope with a constant slope, or an annular arc surface with a gradually decreasing slope from the outer edge to the inner edge of the first mesa 230.
Preferably, as shown in FIG. 2, the inner side surface of the second counter bore 23 forms an angle alpha, 95 DEG alpha is less than or equal to 135 DEG with the first table 230 on the axial cross section of the second counter bore 23.
Preferably, as shown in fig. 1 and 3, a clamping table 11 is arranged on one side of the middle part of the terminal body 10 of the terminal 1, and the clamping table 11 is in interference fit with the hole channel 22, so that the stability and reliability of the connection between the terminal 1 and the substrate 2 are improved.
It should be noted that, as shown in fig. 1, during assembly, the clamping table 11 presses the hole channel 22 to generate deformation corresponding to the clamping table 11, so as to further improve the stability and reliability of the matching between the lead-out terminal 1 and the substrate 2.
Preferably, as shown in fig. 3, the free end surface of the clamping table 11 is an arc surface concentric with the end body 10, and the height of the clamping table 11 is less than or equal to 2/3 of the outer diameter of the end body 10, so that the clamping table 11 cannot be subjected to excessive resistance when entering the hole 22, and the assembly of the end 1 and the substrate 2 is not affected, and the substrate 2 is not damaged destructively. Of course, the free end face of the clamping table 11 may also be planar, but this may increase the difficulty of assembling the terminal 1 and the base body 2 and/or may cause damage to the base body 2.
Preferably, a buffer groove 110 is provided on one side of the terminal body 10 opposite to the clamping table 11, and the buffer groove 110 facilitates benign elastic deformation of the clamping table 11 when the clamping table 11 enters the hole 22, so that the assembly of the terminal 1 and the substrate 2 is smoother.
Preferably, as shown in fig. 3, the edges of the clamping tables 11 are provided with rounded corners, which is favorable for reducing the friction between the clamping tables 11 and the inner side surface of the hole channel 22, facilitating the insertion of the leading-out end 1 into the hole channel 22 of the substrate 2, and avoiding the damage of the edges of the clamping tables 11 to the substrate 2.
Preferably, as shown in fig. 1 and 3, a limit boss 12 is disposed below the clamping table 11 at one side of the terminal body 10, and the limit boss 12 is matched with the lower end surface of the base 2, so as to avoid the terminal 1 from being excessively inserted into the base 2. It should be noted that the limiting boss 12 and the clamping boss 11 may be located on the same side of the terminal body 10, or may be located on different sides of the terminal body 10.
Preferably, as shown in fig. 3, the thickness of the limiting boss 12 is greater than or equal to 1/2 of the outer diameter of the terminal body 10, so as to ensure the limiting effect of the limiting boss 12.
Preferably, as shown in fig. 1 and 4, a first counter bore 21 is disposed at the lower end (i.e., the inlet end of the channel) of the channel 22 of the base 2, the first counter bore 21 is communicated with the channel 22, and the inner diameter of the first counter bore 21 is greater than the inner diameter of the channel 22, and the height of the limiting boss 12 is less than the difference between the inner diameters of the first counter bore 21 and the channel 22. During assembly, the limiting boss 12 is arranged in the first counter bore 21, so that the occupied space of the connecting structure is saved, and the situation that the limiting capability of the limiting boss 12 is affected due to the fact that the limiting boss 12 is exposed and damaged by impact is avoided.
The foregoing is a further detailed description of the invention in connection with the preferred embodiments, and it is not intended that the invention be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the invention, and these should be considered to be within the scope of the invention.
Claims (10)
1. A connection structure, characterized in that: the device comprises a leading-out end (1) and a base body (2) matched with the leading-out end (1); the leading-out end (1) comprises a leading-out end main body (10), the substrate (2) comprises a pore canal (22) tightly matched with the leading-out end main body (10), the pore canal (22) comprises a pore canal inlet end and a pore canal outlet end, a second counter bore (23) is arranged at the pore canal outlet end, the inner diameter of the second counter bore (23) is greater than the inner diameter of the pore canal (22), a first table top (230) is formed at the joint of the second counter bore (23) and the pore canal (22), the first table top (230) gradually keeps away from the outer edge of the first table top from the inner edge of the first table top to the outer edge of the first table top, forms an inclined plane at the outlet end of the pore canal, and the leading-out end (1) is inserted from the inlet end of the pore canal and extends out from the outlet end of the pore canal during assembly.
2. The connection structure according to claim 1, wherein: the second counter bore (23) and the pore canal (22) are matched into a funnel-shaped structure, and the first table surface (230) is an inclined surface with a constant absolute value of the slope or an arc surface with the absolute value of the slope gradually becoming smaller from the outer edge to the inner edge of the first table surface (230).
3. The connection structure according to claim 1 or 2, characterized in that: one side of the leading-out end main body (10) is provided with a clamping table (11), and the leading-out end main body (10) is matched with the pore canal (22) through the clamping table (11).
4. A connection according to claim 3, wherein: the height of the clamping table (11) is less than or equal to 2/3 of the outer diameter of the leading-out end main body (10).
5. A connection according to claim 3, wherein: the edge of the clamping table (11) is provided with a round angle, and one side of the leading-out end main body (10) is positioned on the opposite side of the clamping table (11) and is provided with a buffer groove (110).
6. The connection structure according to claim 4 or 5, characterized in that: the included angle between the inner side surface of the second counter bore (23) and the first table top (230) is alpha, and alpha is more than or equal to 95 degrees and less than or equal to 135 degrees.
7. The connection structure according to claim 1, wherein: one side of the leading-out end main body (10) is provided with a limit boss (12) matched with the lateral surface of the outer side of the inlet end of the pore canal.
8. The connection structure according to claim 7, wherein: the base body (2) comprises a first counter bore (21) arranged at the inlet end of the pore canal, the inner diameter of the first counter bore (21) is greater than the inner diameter of the pore canal (22), and the first counter bore (21) is used for accommodating the limiting boss (12).
9. The connection structure according to claim 7 or 8, characterized in that: the height of the limiting boss (12) is more than or equal to 1/2 of the outer diameter of the leading-out end main body (10).
10. The connection structure according to claim 1, wherein: a clamping table (11) is arranged on one side of a leading-out end main body (10) of the leading-out end (1), a limiting boss (12) is arranged on one side of the leading-out end main body (10) and positioned on the outer side of one end of the clamping table (11), and the leading-out end main body (10) is in interference fit with a pore channel (22) through the clamping table (11); the inlet end of the pore canal (22) is provided with a first counter bore (21) for accommodating the limit boss (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710365834.6A CN108953319B (en) | 2017-05-22 | 2017-05-22 | Connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710365834.6A CN108953319B (en) | 2017-05-22 | 2017-05-22 | Connection structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108953319A CN108953319A (en) | 2018-12-07 |
| CN108953319B true CN108953319B (en) | 2024-03-08 |
Family
ID=64462412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710365834.6A Active CN108953319B (en) | 2017-05-22 | 2017-05-22 | Connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108953319B (en) |
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| CH586958A5 (en) * | 1974-01-16 | 1977-04-15 | Schmid & Co | |
| CH666769A5 (en) * | 1984-09-26 | 1988-08-15 | Siemens Ag | Electric jack-plug connector - has ridge in inserted contact cooperating with wall of contact reception chamber |
| US4929193A (en) * | 1988-11-22 | 1990-05-29 | North American Specialities Corporation | Connector |
| JPH087735A (en) * | 1994-06-18 | 1996-01-12 | Hightech:Kk | Base structure of relay |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108953319A (en) | 2018-12-07 |
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