CN202991787U - Threaded connection structure, plug pin device and suspension arm - Google Patents
Threaded connection structure, plug pin device and suspension arm Download PDFInfo
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- CN202991787U CN202991787U CN 201220746691 CN201220746691U CN202991787U CN 202991787 U CN202991787 U CN 202991787U CN 201220746691 CN201220746691 CN 201220746691 CN 201220746691 U CN201220746691 U CN 201220746691U CN 202991787 U CN202991787 U CN 202991787U
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- connection structure
- baffle plate
- screw connection
- pin
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- 239000000725 suspension Substances 0.000 title abstract 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
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Abstract
The utility model discloses a threaded connection structure, plug pin device and davit, threaded connection structure includes first part and second part, be provided with first screw hole on the first part, the second part has the screw thread portion that matches with first screw hole, and, threaded connection structure still includes the baffle, the baffle detachably connects in the first part, and this threaded connection structure still includes and is used for preventing the baffle and the relative pivoted anti-rotation portion of second part; the plug pin device comprises the threaded connection structure, wherein the first component is a working pin of the plug pin device, and the second component is a pin pulling column of the plug pin device; the suspension arm comprises the plug pin device. The threaded connection structure can effectively prevent relative rotation between two parts connected through threads, and after the threaded connection structure is applied, the operational reliability of the pin inserting and pulling device and the suspension arm is improved.
Description
Technical field
The utility model relates to mechanical field, particularly, relates to a kind of screw connection structure, a kind of pin inserting-pulling device and a kind of arm with described pin inserting-pulling device with described screw connection structure.
Background technique
Screw connection structure is extensive in application in machine equipments, for example, as shown in Figure 1, the pin inserting-pulling device that is arranged on the arm afterbody of prior art can comprise first component 1(work pin) and the second component 2(post of pulling pin), be provided with the first tapped hole 3 on first component 1, second component 2 comprises screw section 4, thereby the first tapped hole 3 matches with screw section 4 and makes work pin and the post of pulling pin be threaded connection.
When arm is worked, realize the insertion between adjacent two joint arms and extract by inserted pin, require to pull pin when inserted pin post remains on specific position and not with the relative movement of work pin, but, in the pin inserting-pulling device of prior art, due in the inserted pin process, the post of pulling pin can be subject to larger torsional moment and rotate with respect to the work pin, the post of pulling pin is difficult to remain on special position, and inserted pin difficulty when causing hoisting arm expansion arranges and causes more serious fault.
Therefore, the problem in relative rotation between two parts that in prior art, existence can't effectively prevent from being threaded connection.
The model utility content
The purpose of this utility model is to provide a kind of screw connection structure, a kind of pin inserting-pulling device and a kind of arm with described pin inserting-pulling device with this screw connection structure, wherein, relatively rotating between described screw connection structure two parts that can effectively prevent from being threaded connection.
To achieve these goals, the utility model provides a kind of screw connection structure, this screw connection structure comprises first component and second component, be provided with the first tapped hole on described first component, described second component has the screw section of matching with described the first tapped hole, and, this screw connection structure also comprises baffle plate, described baffle plate removably is connected in described first component, and this screw connection structure also comprises be used to preventing described baffle plate and described second component anti-transfer part in relative rotation.
Preferably, described anti-transfer part comprises the draw-in groove on the outer circumferential face that is arranged on described second component and card key on the inner peripheral surface of described baffle plate is set, and described draw-in groove and described card key match.
Preferably, described draw-in groove is along the axial setting of described second component, and the cross section of described card key is rectangle.
Preferably, described anti-transfer part is a plurality of.
Preferably, be respectively arranged with the second tapped hole and through hole on described first component and described baffle plate, described first component be connected baffle plate by passing described through hole and being connected the threaded connector of the second tapped hole and connecting.
Preferably, described screw section and described threaded connector be arranged in parallel, and the matching gap of described the first tapped hole and screw section is greater than the matching gap of described the second tapped hole and threaded connector.
Preferably, described baffle plate extends and extends not more than half of girth of the cross section of described second component around the outer circumferential face of described second component, and described screw connection structure comprises at least one described baffle plate.
Preferably, described the second tapped hole, through hole, threaded connector are respectively a plurality of.
The utility model also provides a kind of pin inserting-pulling device, and this pin inserting-pulling device comprises described screw connection structure, and described first component is the work pin of this pin inserting-pulling device, and described second component is the post of pulling pin of this pin inserting-pulling device.
The utility model also provides a kind of arm, and this arm comprises described pin inserting-pulling device.
In worm structure of the present utility model, when the one or both in first component and second component is applied effect, when making the trend that first component and second component produce relative rotation, the baffle plate that is connected with first component also will produce and second component trend in relative rotation, but, because the anti-baffle plate of the effect of anti-transfer part and second component relatively rotate, then prevent that first component and second component from relatively rotating, thereby, by coordinating of baffle plate and anti-transfer part, relatively rotating between two parts that can effectively prevent from being threaded connection.
Other feature and advantage of the present utility model will partly be described in detail in embodiment subsequently.
Description of drawings
Accompanying drawing is to be used to provide further understanding of the present utility model, and consists of the part of specification, is used from explanation the utility model with following embodiment one, but does not consist of restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the schematic diagram of linkage structure of pin and the post of pulling pin of working in pin inserting-pulling device according to prior art;
Fig. 2 is the schematic diagram of linkage structure of pin and the post of pulling pin of working in pin inserting-pulling device according to a kind of mode of execution of the present utility model;
Fig. 3 is the sectional view along A-A line in Fig. 2;
Fig. 4 is the cross-sectional schematic of looking up according to the pin inserting-pulling device of another kind of mode of execution of the present utility model.
Description of reference numerals
1 first component 2 second component 3 first tapped holes
4 screw section 5 baffle plate 6 draw-in grooves
7 card key 8 second tapped hole 9 through holes
10 threaded connector 11 heads
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated.Should be understood that, embodiment described herein only is used for description and interpretation the utility model, is not limited to the utility model.
In the utility model, in the situation that do not do opposite explanation, the noun of locality of use typically refers to reference to shown in the drawings upper and lower as " upper and lower "; " inside and outside " refers to inside and outside with respect to the profile of each parts itself.
According to an aspect of the present utility model, a kind of screw connection structure is provided, this screw connection structure comprises first component 1 and second component 2, be provided with the first tapped hole 3 on first component 1, second component 2 has the screw section 4 of matching with the first tapped hole 3, and this screw connection structure also comprises baffle plate 5, baffle plate 5 removably is connected in first component 1, and this screw connection structure also comprises for anti-baffle plate 5 and second component 2 anti-transfer part in relative rotation.
In worm structure of the present utility model, when the one or both in first component 1 and second component 2 is applied effect, when making the trend that first component 1 and second component 2 produce relative rotation, the baffle plate 5 that is connected with first component 1 also will produce and second component 2 trend in relative rotation, but, because the anti-baffle plate 5 of the effect of anti-transfer part relatively rotates with second component 2, then prevent that first component 1 and second component 2 from relatively rotating, thereby, by coordinating of baffle plate 5 and anti-transfer part, relatively rotating between two parts that can effectively prevent from being threaded connection.
According to the embodiment of screw connection structure, baffle plate 5 and anti-transfer part can be set to suitable arbitrarily form.
For example, as a kind of simple structure, described anti-transfer part comprises the draw-in groove 6 on the outer circumferential face that is arranged on second component 2 and card key 7 on the inner peripheral surface (surface towards second component 2 of finger stop plate 5) of baffle plate 5 is set, and described draw-in groove 6 and described card key 7 match.After baffle plate 5, second component 2 and first component 1 assemble each other, card key 7 should be arranged in draw-in groove 6, mutual rotation by draw-in groove 6 and card key 7 defining baffles 5 and second component 2 like this, the anti-transfer part of setting is not only simple in structure, easily manufactured and effect is remarkable like this.
Further particularly, referring to Fig. 2 and Fig. 3, draw-in groove 6 can be along the axial setting of second component 2, and the cross section of card key 7 is rectangle.Cross section is that the card key 7 of rectangle more is conducive to the restriction of card key 7 with the mutual rotation of draw-in groove 6, and card key 7 can move by the length direction along draw-in groove 6 in draw-in groove 6, to coordinate second component 2 along the movement vertically of first component 1.
And, in order to prevent that better second component 2 and first component 1 from occuring mutually to rotate, described anti-transfer part can be for a plurality of, for example, can be along second component 2 a plurality of draw-in grooves 6 circumferentially equally spaced are set, and a plurality of card keys 7 correspondingly are set, and so also can make second component 2 and baffle plate 5 stressed more even when existence relatively rotates trend, avoid stressed in a certain segment set of second component 2 and baffle plate 5 and the lost of life.
As a kind of mode of execution, be respectively arranged with the second tapped hole 8 and through hole 9 on first component 1 and baffle plate 5, first component 1 is connected with baffle plate by passing through hole 9 and being connected the threaded connector 10 of tapped hole 8 and connecting, be threaded connection the dismounting that part 10 connection baffle plates 5 and first component 1 have facilitated baffle plate 5, after threaded connector 10 was screwed in the second tapped hole 8, the head 11 of threaded connector 10 was fixed on baffle plate 5 between baffle plate 5 and first component 1.
And under preferable case, screw section 4 and threaded connector 10 be arranged in parallel, and the matching gap of the first tapped hole 3 and screw section 4 is greater than the matching gap of the second tapped hole 8 and threaded connector 10.for example, the second tapped hole 8 in the bottom of first component 1 around the first equally spaced setting of tapped hole 3, through hole 9 is corresponding with the second tapped hole 8, threaded connector 10 passes through hole 9 from the below of baffle plate 5 and is screwed into the second tapped hole 8, first component 1 is connected connection with baffle plate, and, the matching gap of the first tapped hole 3 and screw section 4 is greater than the matching gap of the second tapped hole 8 and threaded connector 10, like this, due to the matching gap of the first tapped hole 3 and screw section 4 large (size is larger), thereby first component 1 and second component 2 are mainly to fix by screw section 4 and the first coordinating of tapped hole 3, the second tapped hole 8 and threaded connector 10 mainly play the effect (preventing that namely first component 1 and second component 2 from relatively rotating) that coordinates with anti-transfer part first component 1 and second component 2 location.
Wherein, preferably, the second tapped hole 8, through hole 9, threaded connector 10 are respectively a plurality of, so that more firmly connect between first component 1 and baffle plate 5, thereby prevent that better first component 1 and second component 2 from relatively rotating, and, further, a plurality of the second tapped holes 8 can be along first component 1 circumferentially uniform, make baffle plate 5 and first component 1 stressed more even when existence relatively rotates trend, avoid stressed in a certain segment set of baffle plate 5 and first component 1 and the lost of life.
According on the other hand of the present utility model, a kind of pin inserting-pulling device is provided, this pin inserting-pulling device comprises above-mentioned screw connection structure, and wherein, first component 1 is the work pin of this pin inserting-pulling device, and second component 2 is the post of pulling pin of this pin inserting-pulling device.
According on the other hand of the present utility model, a kind of arm also is provided, wherein, this arm comprises pin inserting-pulling device of the present utility model.
Use in the pin inserting-pulling device of screw connection structure of the present utility model, cooperation by baffle plate 5 and anti-transfer part, prevent from pulling pin post and produce relative rotation when being subject to torsional interaction and between the work pin, thereby, guarantee that effectively the relative position of pulling pin in the inserted pin process between post and work pin is stable, improved the reliability of pin inserting-pulling device.After arm was used pin inserting-pulling device of the present utility model, due to the functional reliability of pin inserting-pulling device, the reliability of the flexible operation of arm and Security improved.
Below describe by reference to the accompanying drawings preferred implementation of the present utility model in detail; but; the utility model is not limited to the detail in above-mentioned mode of execution; in technical conceive scope of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
Need to prove in addition, each concrete technical characteristics described in above-mentioned embodiment in reconcilable situation, can make up by any suitable mode, for fear of unnecessary repetition, the utility model is to the explanation no longer separately of various possible compound modes.
In addition, also can carry out combination in any between various mode of execution of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (10)
1. screw connection structure, this screw connection structure comprises first component (1) and second component (2), be provided with the first tapped hole (3) on described first component (1), described second component (2) has the screw section (4) of matching with described the first tapped hole (3), it is characterized in that, this screw connection structure also comprises baffle plate (5), described baffle plate (5) removably is connected in described first component (1), and this screw connection structure also comprises be used to preventing described baffle plate (5) and described second component (2) anti-transfer part in relative rotation.
2. screw connection structure according to claim 1, it is characterized in that, described anti-transfer part comprises the draw-in groove (6) on the outer circumferential face that is arranged on described second component (2) and card key (7) on the inner peripheral surface of described baffle plate (5) is set, and described draw-in groove (6) and described card key (7) match.
3. screw connection structure according to claim 2, is characterized in that, described draw-in groove (6) is along the axial setting of described second component (2), and the cross section of described card key (7) is rectangle.
4. screw connection structure according to claim 1, is characterized in that, described anti-transfer part is a plurality of.
5. the described screw connection structure of any one according to claim 1-4, it is characterized in that, be respectively arranged with the second tapped hole (8) and through hole (9) on described first component (1) and described baffle plate (5), described first component (1) be connected baffle plate (5) by passing described through hole (9) and being connected the threaded connector (10) of the second tapped hole (8) and connecting.
6. screw connection structure according to claim 5, it is characterized in that, described screw section (4) and described threaded connector (10) be arranged in parallel, and the matching gap of described the first tapped hole (3) and screw section (4) is greater than the matching gap of described the second tapped hole (8) and threaded connector (10).
7. screw connection structure according to claim 1, it is characterized in that, described baffle plate (5) extends and extends not more than half of girth of the cross section of described second component (2) around the outer circumferential face of described second component (2), described screw connection structure comprises at least one described baffle plate (5).
8. screw connection structure according to claim 5, is characterized in that, described the second tapped hole (8), through hole (9), threaded connector (10) are respectively a plurality of.
9. pin inserting-pulling device, it is characterized in that, this pin inserting-pulling device comprises the described screw connection structure of any one according to claim 1-8, and described first component (1) is the work pin of this pin inserting-pulling device, and described second component (2) is the post of pulling pin of this pin inserting-pulling device.
10. an arm, is characterized in that, this arm comprises pin inserting-pulling device according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220746691 CN202991787U (en) | 2012-12-31 | 2012-12-31 | Threaded connection structure, plug pin device and suspension arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220746691 CN202991787U (en) | 2012-12-31 | 2012-12-31 | Threaded connection structure, plug pin device and suspension arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202991787U true CN202991787U (en) | 2013-06-12 |
Family
ID=48562971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220746691 Expired - Lifetime CN202991787U (en) | 2012-12-31 | 2012-12-31 | Threaded connection structure, plug pin device and suspension arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202991787U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113530368A (en) * | 2021-08-30 | 2021-10-22 | 泉州博超实业有限公司 | Rotary lock for manhole cover |
-
2012
- 2012-12-31 CN CN 201220746691 patent/CN202991787U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113530368A (en) * | 2021-08-30 | 2021-10-22 | 泉州博超实业有限公司 | Rotary lock for manhole cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130612 |
|
| CX01 | Expiry of patent term |