CN218063006U - Telescopic guide pin - Google Patents
Telescopic guide pin Download PDFInfo
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- CN218063006U CN218063006U CN202222247796.3U CN202222247796U CN218063006U CN 218063006 U CN218063006 U CN 218063006U CN 202222247796 U CN202222247796 U CN 202222247796U CN 218063006 U CN218063006 U CN 218063006U
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- guide
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- telescopic
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Abstract
The utility model discloses a telescopic guide pin, which comprises at least two guide parts; two adjacent one of guide part cover is located another, adjacent two connect through the pars contractilis between the guide part, the pars contractilis is including setting up in the guide block of one of them guide part tip to set up the guide way on another guide part, the guide block is in slide in the guide way, so that adjacent two one of guide part is scalable for another. By adopting the structural design, the two adjacent guide parts can realize the change of two states of extension and retraction, and the problem that the guide pin is not easy to take out after the guide application is completed when the space size is smaller than the length size of the guide pin is solved.
Description
Technical Field
The utility model relates to a uide pin field, in particular to telescopic uide pin.
Background
The traditional guide pin is formed by turning a metal cylindrical shaft into a guide pin with the diameter size from small to large by using a lathe, and the length size is unchanged.
When two parts are assembled and a conventional guide pin is used for guiding, if the length dimension of the guide pin is larger than the size of a space for taking out, the guide pin only can play a role of guiding, and the guide pin cannot be taken out from a position with limited space.
SUMMERY OF THE UTILITY MODEL
The utility model relates to an overcome the defect that can not take out the uide pin from the position of space limitation among the prior art, provide a telescopic uide pin. The utility model provides a space size when being less than uide pin length dimension, the uide pin accomplishes the problem that is difficult for taking out after the direction is used.
The utility model discloses an above-mentioned technical problem is solved through following technical scheme:
a telescopic guide pin comprises at least two guide parts; two adjacent one of guide part cover is located another, adjacent two connect through the pars contractilis between the guide part, the pars contractilis is including setting up in the guide block of one of them guide part tip and setting up the guide way on another guide part, the guide block is in slide in the guide way, so that adjacent two one of guide part is scalable for another.
In the scheme, by adopting the structural design, two adjacent guide parts can realize the change of two states of extension and retraction, and in practical application, when in an initial state, the guide pin is in an extension state; when the guide pin realizes the guide function, one of the adjacent guide parts gradually retracts relative to the other guide part along with the sliding of the guide block in the guide groove, and after the guide function is completed, force can be applied to realize the complete retraction of the guide pin, so that the guide pin can be conveniently taken out from a limited space.
Preferably, the guide block protrudes radially along the guide portion, and the guide groove extends in an axial direction of the guide portion.
In this scheme, adopt above-mentioned structural design, outstanding guide block is injectd in the guide way to can only slide along the axial of guide part.
Preferably, the guide groove extends to an end portion along an axial direction of the guide portion.
In this scheme, adopt above-mentioned structural design, make things convenient for the guide block to pass through in the tip entry is installed the guide way. And the guide groove extends to the end part of the guide part, the guide part can generate certain deformation when the area with the guide groove is compressed, and when the guide parts are connected in sequence, the connection between two adjacent guide parts is facilitated.
Preferably, the plurality of guide parts are sequentially sleeved along the direction from the tail end to the front end of the guide pin; and in two adjacent guide parts, the guide part close to the front end is sleeved on the outer side wall of the guide part close to the tail end.
In this scheme, adopt above-mentioned structural design, conveniently realize the indentation of layer upon layer of guide part, be close to terminal guide part for the guide part indentation that is close to the front end, the guide part outer wall that is close to the front end contacts the direction passageway all the time.
Preferably, the guide pin comprises: a front end guide portion provided with a front end guide groove; the tail end guide part is provided with a tail end guide block, and the tail end guide block is arranged at one end connected with the front end guide part; the tail end guide block slides in the front end guide groove, so that the tail end guide part can stretch and retract relative to the front end guide part.
In this scheme, adopt above-mentioned structural design, front end guide part is adjacent with terminal guide part is direct, and terminal guide part is scalable for front end guide part.
Preferably, the guide pin further comprises at least one middle guide part, the middle guide part is provided with a middle end guide groove, and a middle end guide block is arranged on the side wall staggered with the middle end guide groove; the middle end guide groove is adjacent to one end of the middle end guide block or the tail end guide block in sliding connection, and the middle end guide block is adjacent to the other end of the middle end guide block or the front end guide groove in sliding connection.
In the scheme, the structure design is adopted, and the total extension length of the guide pin is correspondingly increased by adding the middle guide part; during the retraction, the tip guide, the at least one intermediate guide, and the nose guide are retracted in a direction from the tip to the nose of the guide pin.
Preferably, the number of the middle guide part is one, the middle guide groove of the middle guide part is slidably connected with the tail end guide block of the tail end guide part, and the middle guide block of the middle guide part is slidably connected with the front end guide groove of the front end guide part; such that the tip guide portion is telescopic relative to the middle guide portion, and the middle guide portion is telescopic relative to the tip guide portion.
In the scheme, the structure design is adopted, and the total extension length of the guide pin is correspondingly increased by adding the middle guide part; meanwhile, the tail end guide part is directly adjacent to the middle guide part, and the tail end guide part is telescopic relative to the middle guide part; simultaneously, the front end guide part is directly adjacent to the middle guide part, and the middle guide part is telescopic relative to the front end guide part.
Preferably, the guide pin further comprises a guide head, the guide head comprises a guide end and a connecting end, the connecting end is inserted into the front end guide portion, and the guide end is connected with the connecting end and forms a step to abut against the front end guide portion.
In the scheme, the structural design is adopted, the connecting end of the guide head is connected to the opening end of the guide groove of the front end guide part, the circumferential opening of the guide groove is closed, and the axial stroke limit position of the guide block fixed in the guide groove of the front end guide part is limited; the guide end is used for realizing a guide function.
Preferably, the guide pin has a distal end and a distal end, and the guide pin has a distal end and a distal end.
In this scheme, adopt above-mentioned structural design, the tip that the external diameter is little conveniently docks the direction passageway, along with the gradual change of external diameter, the guide pin of complete leading-in conveniently realizes the direction function of direction head.
The utility model discloses an actively advance the effect and lie in: when the guide pin realizes the normal guide function, one of the adjacent guide parts gradually retracts relative to the other guide part along with the sliding of the guide block in the guide groove, and after the guide function is finished, force can be applied to realize the complete retraction of the guide pin, so that the guide pin is convenient to take out at a limited space.
Drawings
Fig. 1 is a schematic structural view of a connection between a front end guide portion and a middle guide portion provided in an embodiment of the present invention;
fig. 2 is a schematic structural view of the connection between the end guide portion and the middle guide portion provided in the embodiment of the present invention;
fig. 3 is a schematic structural diagram of a view angle of a telescopic guide pin according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another view angle of a telescopic guide pin according to an embodiment of the present invention;
fig. 5 is a schematic view of a telescopic guide pin according to an embodiment of the present invention;
fig. 6 is a schematic structural view of a guide head of a telescopic guide pin according to an embodiment of the present invention.
Description of reference numerals:
Front end guide groove 602
Leading end 51
Connecting end 52
Detailed Description
The present invention is further illustrated by way of the following examples, which are not intended to limit the scope of the invention.
Example 1
As will be understood from fig. 1-2, a telescopic guide pin comprises at least two guide portions; one of two adjacent guide portions is located another, connects through the pars contractilis between two adjacent guide portions, and the pars contractilis is including setting up in the guide block of one of them guide portion tip to and set up the guide way on another guide portion, and the guide block slides in the guide way to make one of two adjacent guide portions scalable for another. Fig. 1 shows an example in which the intermediate guide portion 30 is contracted to the front end guide portion 40, and fig. 2 shows an example in which the end guide portion 20 is contracted to the intermediate guide portion 30.
Two adjacent guide parts can realize the change of two states of extension and retraction, and in practical application, when in an initial state, the guide pin is in an extension state; when the guide pin realizes the guide function, one of the adjacent guide parts gradually retracts relative to the other guide part along with the sliding of the guide block in the guide groove, and after the guide function is completed, force can be applied to realize the complete retraction of the guide pin, so that the guide pin can be conveniently taken out from a limited space.
As shown in fig. 1-2, the guide block (including the end guide block 601 and the middle guide block 3601) protrudes along the radial direction of the guide part, the guide block is arranged at the end of the guide part and is distributed symmetrically in the radial direction of the guide part, the guide block can axially exceed a section of the guide part, and the guide groove extends along the axial direction of the guide part. The protruding guide block is defined in the guide groove and can only slide in the axial direction of the guide portion.
As shown in fig. 1-2, the guide groove (including the leading guide groove 602 and the middle guide groove 3602) extends to an end portion along the axial direction of the guide portion, facilitating the guide block to be mounted into the guide groove through the open end of the guide groove.
As shown in fig. 3-5, a plurality of guide portions are sequentially sleeved along the direction from the tail end to the front end of the guide pin; and in two adjacent guide portions, the guide portion close to the front end is sleeved on the outer side wall of the guide portion close to the tail end. Therefore, the arrangement mode is sequentially sleeved, the guide parts are conveniently retracted layer by layer, the guide parts close to the tail ends are retracted relative to the guide parts close to the front ends, and the outer walls of the guide parts close to the front ends are always in contact with the guide channels.
As shown in fig. 3 to 5, the front guide portion 40 is fitted over the outer side wall of the middle guide portion 30, and the middle guide portion 30 is fitted over the outer side wall of the tip guide portion 20.
As shown in fig. 3 to 5, the guide pin includes: a front end guide portion 40, the front end guide portion 40 being provided with a front end guide groove 602; a tip guide part 20, the tip guide part 20 being provided with a tip guide block 601, the tip guide block 601 being provided at one end connected to the front end guide part 40; the tip guide block 601 slides in the leading end guide groove 602 to make the tip guide portion 20 telescopic with respect to the leading end guide portion 40.
The leading guide 40 may be directly adjacent the tip guide 20, with the tip guide 20 being retractable relative to the leading guide 40.
The guide pin further comprises at least one intermediate guide portion 30, as shown in fig. 3-5, which show a schematic view with one intermediate guide portion 30, and in a specific implementation, more intermediate guide portions 30 can be provided as required. The middle guide part 30 is provided with a middle end guide groove 3602, and a middle end guide block 3601 is arranged on the side wall staggered with the middle end guide groove 3602; the middle guide groove 3602 is slidably connected with the end guide block 601 of the end adjacent to the end guide part 20 at one end, or slidably connected with the middle guide block 3601 of the end adjacent to the middle guide part 30 at one end; the middle guide block 3601 is slidably connected to the front guide groove 602 of the other end adjacent to the front guide 40, or slidably connected to the middle guide groove 3602 of the other end adjacent to the middle guide 30.
The addition of the intermediate guide 30 correspondingly increases the overall elongation of the guide pin; during the retraction, the tip guide 20, the at least one intermediate guide 30, the nose guide 40 are retracted in the tip-to-nose direction of the guide pin.
As shown in fig. 3 to 5, the number of the intermediate guide members 30 is one, the middle guide groove 3602 of the intermediate guide member 30 is slidably connected to the end guide block 601 of the end guide member 20, and the middle guide block 3601 of the intermediate guide member 30 is slidably connected to the front guide groove 602 of the front guide member 40; so that the end guide portion 20 is stretchable with respect to the middle guide portion 30, and the middle guide portion 30 is stretchable with respect to the front end guide portion 40.
The addition of the intermediate guide portion 30 correspondingly increases the overall elongation of the guide pin; while the end guide 20 is directly adjacent to the intermediate guide 30, the end guide 20 is telescopic relative to the intermediate guide 30; while the front end guide portion 40 is directly adjacent to the intermediate guide portion 30, the intermediate guide portion 30 is retractable with respect to the front end guide portion 40.
As shown in fig. 3 to 5, the guide pin further includes a guide head 50, as shown in fig. 6, the guide head 50 includes a guide end 51 and a connection end 52, the connection end 52 is inserted into the front guide portion 40, and the guide end 51 is connected with the connection end 52 and forms a step to abut against the front guide portion 40.
The connecting end 52 of the guide head 50 is connected to the open end of the front end guide groove 602 of the front end guide part 40, closes the circumferential opening of the front end guide groove 602, and limits the axial stroke limit position of the middle end guide block 3601 fixed in the front end guide groove 602 of the front end guide part 40; the pilot end 51 is used to perform a pilot function.
As shown in fig. 3-5, the outer diameter of the guide end 51 tapers in the direction from the distal end to the front end of the guide pin.
The end part with small outer diameter is convenient to butt joint with the guide channel, and the guide pin is completely guided along with the gradual change of the outer diameter, so that the guide function of the guide head 50 is conveniently realized.
In a specific use scene, the thread ridge 10 of the telescopic guide pin is connected to a threaded hole on a tool on the B surface of the offshore hub, the guide head faces downwards in a normal use state, and the guide pin is in an extension state under the action of gravity. The wheel hub is lifted by the travelling crane and descends, the telescopic guide pin extends out to serve as a guide function, the guide pin is guided to enter the through hole of the transportation support assembled on the wheel hub, the wheel hub descends slowly, and when external force is applied, for example, the guide head is contacted with the ground, the guide pin contracts layer by layer in the process that the guide pin continues to move downwards. The front end guide part 40, the middle guide part 30 and the tail end guide part 20 of the telescopic guide pin are gradually retracted, then the telescopic guide pin is rotated to move out of the tooth hole of the tool, force can be applied to enable the telescopic guide pin to be completely retracted, and then the telescopic guide pin is slowly taken out from the position below the transportation support.
Example 2
This embodiment is a specific way of manufacturing and assembling a telescopic guide pin comprising an intermediate guide part.
As will be understood from fig. 1-5, 1) the end guide 20 is formed by taking a cylindrical shaft of a relatively smallest diameter, turning the thread ridge 10 at one end and welding two symmetrical end guide blocks 601 at the other end.
2) A round steel pipe with a relatively medium diameter is selected, a middle end guide groove 3602 matched with the tail end guide block 601 of the tail end guide part 20 is machined to serve as a first section of guide groove, and meanwhile two middle end guide blocks 3601 are welded on the surface of an area without the middle end guide groove 3602 machined, and the middle guide part 30 is manufactured. Wherein, each guide way is a U-shaped groove.
3) A round steel pipe with a relatively large diameter is selected, and the front guide groove 602 that is fitted with the middle guide block 3601 of the middle guide part 30 is processed as a second-stage guide groove to make the front guide part 40. Wherein, each guide way is a U-shaped groove.
4) A cylindrical metal shaft is selected, one end of the cylindrical metal shaft is machined to be consistent with the inner diameter of the round steel pipe of the front end guide part 40, and the other end of the cylindrical metal shaft is machined to be a guide pin with the diameter from large to small to manufacture the guide head 50.
5) The assembly process comprises the following steps: the tip guide 20 is fitted with the intermediate guide 30 with a clearance, and the tip guide block 601 of the tip guide 20 is fitted into the middle tip guide groove 3602 of the intermediate guide 30; the assembly of the tip guide 20 and the middle guide 30 is installed in the tip guide 40 with a clearance fit, the middle guide block 3601 of the middle guide 30 is installed in the tip guide groove 602 of the tip guide 40, and finally the connecting end 52 of the guide head 50 is inserted into the round steel tube of the tip guide 40 to a limit position, and the bevel is welded.
Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that this is by way of example only and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments can be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.
Claims (10)
1. A telescopic guide pin, characterized by comprising at least two guide parts; two adjacent one of guide part cover is located another, adjacent two connect through the pars contractilis between the guide part, the pars contractilis is including setting up in the guide block of one of them guide part tip to set up the guide way on another guide part, the guide block is in slide in the guide way, so that adjacent two one of guide part is scalable for another.
2. The telescopic guide pin according to claim 1, wherein the guide block protrudes radially along the guide portion, and the guide groove extends in an axial direction of the guide portion.
3. The telescopic guide pin according to claim 2, wherein the guide groove extends to an end portion in an axial direction of the guide portion.
4. The telescopic guide pin according to claim 3, wherein a plurality of the guide portions are sequentially sleeved in a direction from a distal end to a front end of the guide pin; and in two adjacent guide parts, the guide part close to the front end is sleeved on the outer side wall of the guide part close to the tail end.
5. The telescoping guide pin of claim 3, wherein said guide pin comprises:
the front end guide part is provided with a front end guide groove;
the tail end guide part is provided with a tail end guide block, and the tail end guide block is arranged at one end connected with the front end guide part;
the end guide block slides in the front end guide groove to make the end guide part telescopic relative to the front end guide part.
6. The telescoping guide pin of claim 5, further comprising at least one intermediate guide portion, the intermediate guide portion having a middle guide slot, the side wall offset from the middle guide slot having a middle guide block; the middle end guide groove is adjacent to one end of the middle end guide block or the tail end guide block in sliding connection, and the middle end guide block is adjacent to the other end of the middle end guide block or the front end guide groove in sliding connection.
7. The telescopic guide pin according to claim 6, wherein the number of the middle guide portion is one, the middle guide groove of the middle guide portion is slidably coupled to the end guide block of the end guide portion, and the middle guide block of the middle guide portion is slidably coupled to the front guide groove of the front guide portion; such that the tip guide portion is telescopic relative to the middle guide portion, and the middle guide portion is telescopic relative to the tip guide portion.
8. The telescoping guide pin of claim 5, wherein: and the other end of the tail end guide part, which is far away from the guide block, is provided with a thread.
9. The telescoping guide pin of claim 5 further comprising a guide head, the guide head including a guide end and an attachment end, the attachment end being inserted into the front guide portion, the guide end being connected to the attachment end and stepped to abut the front guide portion.
10. The telescoping guide pin of claim 9, wherein the outer diameter of the guide end tapers in a direction from the distal end to the forward end of the guide pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222247796.3U CN218063006U (en) | 2022-08-25 | 2022-08-25 | Telescopic guide pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222247796.3U CN218063006U (en) | 2022-08-25 | 2022-08-25 | Telescopic guide pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218063006U true CN218063006U (en) | 2022-12-16 |
Family
ID=84406322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222247796.3U Active CN218063006U (en) | 2022-08-25 | 2022-08-25 | Telescopic guide pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218063006U (en) |
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2022
- 2022-08-25 CN CN202222247796.3U patent/CN218063006U/en active Active
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