CN215486902U - Plugging structure - Google Patents
Plugging structure Download PDFInfo
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- CN215486902U CN215486902U CN202121420460.1U CN202121420460U CN215486902U CN 215486902 U CN215486902 U CN 215486902U CN 202121420460 U CN202121420460 U CN 202121420460U CN 215486902 U CN215486902 U CN 215486902U
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- sealing section
- positioning piece
- plug
- sectional area
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Abstract
The utility model discloses a plugging structure, comprising: the plug comprises a first sealing section and a second sealing section, the cross-sectional area of the second sealing section is smaller than that of the first sealing section, and a first positioning piece is arranged at one end, far away from the first sealing section, of the second sealing section; the press riveting assembly is used for driving the plug to be pressed into the mounting hole of the workpiece through the first sealing section; and a second positioning piece is arranged at one end, close to the plug, of the press riveting component, and the first positioning piece abuts against the second positioning piece to limit the movement of the plug along the direction perpendicular to the pressing direction. In the application, the second sealing section in the plug is blocked due to the deformation after the riveting, so that the connection strength between the plug and the mounting hole is higher, and the sealing effect is better; under the condition that required shutoff intensity is the same, adopt the plugging structure of this application can further reduce the wall thickness of work piece, and then reduce the volume of whole integrated oil circuit piece.
Description
Technical Field
The utility model relates to the technical field of oil circuit blocks, in particular to a plugging structure.
Background
The integrated oil circuit block is used for various engineering machinery and hydraulic power units. Most of the existing integrated oil way block sealing adopts the modes of ball expansion type plug, oil plug matched combined sealing gasket, ED ring, raw material belt, thread glue coating and the like, and the modes are widely applied due to simple structure and low cost.
However, as the application of the integrated oil circuit block is more and more extensive, a higher requirement is put on further reduction of the volume of the integrated oil circuit block, and the size of the integrated oil circuit block cannot be further reduced due to the difficulty in optimization of the respective size and sealing strength of the plugging manner.
For example, when the ball expansion type high-pressure plug and the inner hexagonal plug are used for plugging, the wall thickness (i.e., the depth of the plugging hole) of the oil path block needs to be slightly larger than the diameter of the plugging hole, so that the predetermined plugging strength can be achieved, and the volume of the oil path block cannot be further reduced.
Disclosure of Invention
In view of the above-mentioned deficiencies of the prior art, the present invention is to provide a blocking structure for solving the problem that the wall thickness of the integrated oil circuit block in the prior art cannot be further reduced due to the blocking structure.
The technical scheme adopted by the utility model for solving the technical problem is a plugging structure, which comprises the following components:
the plug comprises a first sealing section and a second sealing section, the cross-sectional area of the second sealing section is smaller than that of the first sealing section, and a first positioning piece is arranged at one end, far away from the first sealing section, of the second sealing section;
the press riveting assembly is used for driving the plug to be pressed into the mounting hole of the workpiece through the first sealing section; and a second positioning piece is arranged at one end, close to the plug, of the press riveting component, and the first positioning piece abuts against the second positioning piece to limit the movement of the plug along the direction perpendicular to the pressing direction.
Further, the first positioning piece comprises a notch arranged at the end part of the plug;
a bulge is arranged at one end of the second positioning piece close to the first positioning piece; the second positioning piece moves towards the direction of the first positioning piece so that the protrusion is abutted to the notch.
Furthermore, the second positioning piece further comprises a body which is arranged in a cylinder shape.
Furthermore, the gap and the bulge are both arranged in a cone shape; the cross-sectional area of the notch is gradually increased from the first positioning piece to the second positioning piece, and the cross-sectional area of the bulge is gradually increased from the first positioning piece to the second positioning piece.
Further, the first sealing section and the second sealing section are both arranged in a cylindrical manner, and the radius of the first sealing section is larger than that of the second sealing section.
Further, the rivet pressing assembly further comprises: the riveting punch is provided with a slotted hole, and a spring is arranged in the slotted hole; the second positioning piece is arranged in the slotted hole in a sliding mode, one end of the spring abuts against the bottom end of the slotted hole, and the other end of the spring abuts against the second positioning piece.
Further, one end of the slotted hole, which is far away from the bottom end, is provided with a first step;
the second positioning piece is provided with a second step, and the second step is abutted against the first step to limit the second positioning piece to slide out of the slotted hole.
Further, the cross-sectional area of one end of the riveting punch close to the mounting hole is larger than that of the first sealing section.
Further, still include the adapter sleeve, the adapter sleeve is equipped with first fixed orifices and first fixing bolt, press and rivet the subassembly part and stretch into first fixed orifices, first fixing bolt passes the lateral wall of adapter sleeve with press and rivet the subassembly and offset.
Furthermore, one end, far away from the pressure riveting component, of the connecting sleeve is further provided with a second fixing hole and a second fixing bolt, a connecting shaft used for being connected with a power source is fixedly arranged in the second fixing hole, and the second fixing bolt penetrates through the side wall of the connecting sleeve and abuts against the connecting shaft.
Compared with the prior art, the utility model has at least the following beneficial effects:
1. compared with the existing plugging mode, in the plug, the second sealing section is deformed after being pressed and riveted to realize plugging, so that the connection strength between the plug and the mounting hole is higher, and the sealing effect is better. Therefore, under the condition that the required plugging strength is the same, the wall thickness (the depth of the mounting hole) of the workpiece can be further reduced by adopting the plugging structure, and the volume of the whole integrated oil circuit block is further reduced.
2. The first positioning piece and the second positioning piece are arranged, so that the problem that the plug deviates in the pressing-in process is solved.
3. The notch and the protrusion are arranged to form a cone, so that the surface of the notch and the surface of the protrusion have a guiding effect, and the positioning accuracy is further improved.
Drawings
FIG. 1 is a cross-sectional view of an occluding structure of an embodiment;
FIG. 2 is a sectional view of the plug in the embodiment;
FIG. 3 is a sectional view of a second orientation of the embodiment;
in the figure:
100. a plug; 110. a first seal section; 111. a ring groove; 120. a second seal section; 121. a notch;
200. pressing and riveting the assembly; 210. riveting a punch; 211. a first step; 220. a second positioning member; 221. a body; 222. a protrusion; 223. a second step; 230. a spring;
300. a workpiece; 310. mounting holes;
400. connecting sleeves; 410. and (7) connecting the shafts.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
Referring to fig. 1 to 3, the present invention discloses a plugging structure, including:
the plug 100 comprises a first sealing section 110 and a second sealing section 120, wherein the cross-sectional area of the second sealing section 120 is smaller than that of the first sealing section 110, and a first positioning piece is arranged at one end, far away from the first sealing section 110, of the second sealing section 120;
the press riveting assembly 200 is used for driving the plug 100 to be pressed into the mounting hole 310 of the workpiece 300 through the first sealing section 110; a second positioning element 220 is disposed at an end of the press riveting assembly 200 close to the plug 100, and the first positioning element abuts against the second positioning element 220 to limit the movement of the plug 100 along a direction perpendicular to the pressing direction.
Specifically, the cross-sectional area of the first sealing section 110 is greater than that of the second sealing section 120, the plug 100 is pressed into the mounting hole 310 by the first sealing section 110, and when the second sealing section 120 enters the mounting hole 310, a gap is formed between the second sealing section 120 and the inner wall of the mounting hole 310, and the gap provides a deformation space for the second sealing section 120, so that the second sealing section 120 deforms under the extrusion of the rivet pressing assembly 200, and the deformed portion fills the mounting hole 310 and is attached to the inner wall of the mounting hole 310, thereby finally plugging the mounting hole 310. The first sealing section 110 is further provided with a ring groove 111 for installing a sealing strip, so that the plugging effect of the whole plug 100 is further improved.
Compared with the existing plugging manner, in the embodiment, because the second sealing section 120 in the plug 100 is plugged by deformation after riveting, the connection strength between the plug 100 and the mounting hole 310 is higher, and the sealing effect is better. Therefore, under the condition that the required plugging strength is the same, the wall thickness of the workpiece 300 (the depth of the mounting hole 310) can be further reduced by adopting the plugging structure in the embodiment, and the volume of the whole integrated oil circuit block is further reduced.
It should be noted that the pressing direction can be understood as the depth direction of the mounting hole 310, and the arrangement of the first positioning member and the second positioning member 220 solves the problem that the plug 100 is displaced during the pressing process.
Further, the first positioning element comprises a notch 121 arranged at the end of the plug 100;
a protrusion 222 is arranged at one end of the second positioning element 220 close to the first positioning element; the second positioning element 220 moves towards the first positioning element to make the protrusion 222 abut against the notch 121.
It will be appreciated that the rivet pressing assembly 200 is simply adjusted relative to the mounting hole 310 prior to plugging, and when the protrusion 222 is engaged with the notch 121, the positioning is achieved so that the plug 100 is properly aligned with the mounting hole 310.
Further, the second positioning element 220 further includes a body 221 disposed in a cylinder.
Further, the gap 121 and the protrusion 222 are both disposed in a cone shape; the cross-sectional area of the notch 121 gradually increases from the first positioning member toward the second positioning member 220, and the cross-sectional area of the protrusion 222 gradually increases from the first positioning member toward the second positioning member 220.
The gap 121 and the protrusion 222 are provided in a cone shape, and the above relationship of the variation of the sectional area is provided, so that the surface of the gap 121 and the surface of the protrusion 222 have a guiding function, and the positioning accuracy is further improved.
Further, the first sealing section 110 and the second sealing section 120 are both arranged in a cylindrical shape, and the radius of the first sealing section 110 is greater than that of the second sealing section 120.
Preferably, the cross-sectional area of the first sealing section 110 is set larger than that of the second sealing section 120 in order to have a gap between the second sealing section 120 and the inner wall of the installation hole 310; to achieve this, the second sealing section 120 may be provided with a deformation space in the form of a groove or a notch 121. In short, when the plug 100 is pressed into the mounting hole 310, the first sealing section 110 is in interference fit with the mounting hole 310, and the second sealing section 120 has a deformation space with the mounting hole 310 before being deformed.
In this embodiment, the first sealing section 110 and the second sealing section 120 are arranged to be cylindrical, and the radius of the first sealing section 110 is greater than that of the second sealing section 120, so that a deformation space is formed between the second sealing section 120 and the mounting hole 310, and meanwhile, the processing is facilitated, and the cost is reduced.
Further, the rivet pressing assembly 200 further includes: the riveting punch 210 is provided with a slotted hole, and a spring 230 is arranged in the slotted hole; the second positioning element 220 is slidably disposed in the slot, one end of the spring 230 abuts against the bottom end of the slot, and the other end of the spring 230 abuts against the second positioning element 220.
That is, the second positioning element 220 is slidably disposed in the riveting punch 210, and when the notch 121 abuts against the protrusion 222, the second positioning element 220 compresses the spring 230 and slides along the sliding groove to retract into the sliding groove, so as to prevent the second positioning element 220 and the first positioning element from being damaged due to an excessive stress during the riveting process.
Further, one end of the slot hole far away from the bottom end is provided with a first step 211;
the second positioning element 220 is provided with a second step 223, and the second step 223 abuts against the first step 211 to limit the second positioning element 220 from sliding out of the slot hole.
The first step 211 and the second step 223 are arranged, and the spring 230 provides a pretightening force to make the first step 211 and the second step 223 prop against each other, so as to limit the second positioning element 220 to slide out of the slot hole.
Further, the cross-sectional area of the riveting punch 210 at the end near the mounting hole 310 is larger than the cross-sectional area of the first sealing section 110.
The sectional area of the riveting punch 210 is larger than that of the first sealing section 110, and the sectional area of the second sealing section 120 is smaller than that of the first sealing section 110, so that the riveting punch 210 can cover the whole second sealing section 120, and each part of the second sealing section 120 deforms and fills the mounting hole 310 under the extrusion of the riveting punch 210, so that the deformation of the second sealing section is more complete, and the blocking effect is improved.
Further, still include adapter sleeve 400, adapter sleeve 400 is equipped with first fixed orifices and first fixing bolt, the subassembly 200 part is riveted to the pressure stretches into first fixed orifices, first fixing bolt passes the lateral wall of adapter sleeve 400 with the subassembly 200 offsets is riveted to the pressure.
Further, one end of the connecting sleeve 400, which is far away from the press riveting assembly 200, is further provided with a second fixing hole and a second fixing bolt, a connecting shaft 410 used for being connected with a power source is fixedly arranged in the second fixing hole, and the second fixing bolt penetrates through the side wall of the connecting sleeve 400 and abuts against the connecting shaft 410.
Specifically, the riveting component is fixedly connected to the connecting sleeve 400, the connecting shaft 410 is driven by the power source to drive the connecting sleeve 400 to move, and the connecting sleeve 400 further drives the riveting component 200 to press the plug 100 into the mounting hole 310.
It should be noted that the power source may be an oil cylinder, an air cylinder, a hydraulic press, or the like.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
Moreover, descriptions of the present invention as relating to "first," "second," "a," etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating a number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Claims (10)
1. A plugging structure, comprising:
the plug comprises a first sealing section and a second sealing section, the cross-sectional area of the second sealing section is smaller than that of the first sealing section, and a first positioning piece is arranged at one end, far away from the first sealing section, of the second sealing section;
the press riveting assembly is used for driving the plug to be pressed into the mounting hole of the workpiece through the first sealing section; and a second positioning piece is arranged at one end, close to the plug, of the press riveting component, and the first positioning piece abuts against the second positioning piece to limit the movement of the plug along the direction perpendicular to the pressing direction.
2. The closure structure according to claim 1, wherein said first retainer comprises a notch provided at an end of said plug;
a bulge is arranged at one end of the second positioning piece close to the first positioning piece; the second positioning piece moves towards the direction of the first positioning piece so that the protrusion is abutted to the notch.
3. A closure structure according to claim 2, wherein said second locating member further comprises a body arranged in a cylindrical manner.
4. The occlusion structure of claim 2, wherein said notch and said protrusion are each pyramidal; the cross-sectional area of the notch is gradually increased from the first positioning piece to the second positioning piece, and the cross-sectional area of the bulge is gradually increased from the first positioning piece to the second positioning piece.
5. The sealing structure of claim 1, wherein the first sealing section and the second sealing section are each configured as a cylinder, and wherein a radius of the first sealing section is greater than a radius of the second sealing section.
6. The closure structure of claim 1, wherein the clinch assembly further comprises: the riveting punch is provided with a slotted hole, and a spring is arranged in the slotted hole; the second positioning piece is arranged in the slotted hole in a sliding mode, one end of the spring abuts against the bottom end of the slotted hole, and the other end of the spring abuts against the second positioning piece.
7. The plugging structure of claim 6, wherein an end of said slot remote from said bottom end has a first step;
the second positioning piece is provided with a second step, and the second step is abutted against the first step to limit the second positioning piece to slide out of the slotted hole.
8. The containment structure of claim 6, wherein the rivet punch has a cross-sectional area at an end proximate the mounting hole that is greater than the cross-sectional area of the first seal segment.
9. The plugging structure according to any one of claims 1 to 8, further comprising a connecting sleeve, wherein the connecting sleeve is provided with a first fixing hole and a first fixing bolt, the pressure riveting component partially extends into the first fixing hole, and the first fixing bolt penetrates through a side wall of the connecting sleeve to abut against the pressure riveting component.
10. The plugging structure according to claim 9, wherein a second fixing hole and a second fixing bolt are further disposed at one end of the connecting sleeve away from the rivet pressing assembly, a connecting shaft for connecting with a power source is fixedly disposed in the second fixing hole, and the second fixing bolt penetrates through a side wall of the connecting sleeve and abuts against the connecting shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121420460.1U CN215486902U (en) | 2021-06-24 | 2021-06-24 | Plugging structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121420460.1U CN215486902U (en) | 2021-06-24 | 2021-06-24 | Plugging structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215486902U true CN215486902U (en) | 2022-01-11 |
Family
ID=79721995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121420460.1U Active CN215486902U (en) | 2021-06-24 | 2021-06-24 | Plugging structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215486902U (en) |
-
2021
- 2021-06-24 CN CN202121420460.1U patent/CN215486902U/en active Active
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| GR01 | Patent grant |