CN205100540U - Modified steel pipe scaffold connecting piece - Google Patents
Modified steel pipe scaffold connecting piece Download PDFInfo
- Publication number
- CN205100540U CN205100540U CN201520894043.9U CN201520894043U CN205100540U CN 205100540 U CN205100540 U CN 205100540U CN 201520894043 U CN201520894043 U CN 201520894043U CN 205100540 U CN205100540 U CN 205100540U
- Authority
- CN
- China
- Prior art keywords
- hole
- trapezoidal
- dovetail groove
- lock pin
- lockpin
- 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.)
- Expired - Fee Related
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- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model provides a modified steel pipe scaffold connecting piece, includes sleeve and coupling, is equipped with the trapezoidal keys of the swallow -tail form of four edge circumference equipartitions at this telescopic outer peripheral face, the both ends of coupling be equipped with respectively cyclic annular socket joint platform and with trapezoidal key complex dovetail groove, in trapezoidal key inserts this dovetail groove, be equipped with rectangular to looks vertically lockpin through -hole with the dovetail groove at the middle part of coupling, insert the lockpin in the lockpin through -hole. Be equipped with rectangular to the vertically cotter way with trapezoidal key at the middle part of trapezoidal key, be equipped with on the lockpin with the trapezoidal arch of this cotter way complex, adjacent one side in bottom surface of this lockpin through -hole and dovetail groove be equipped with with trapezoidal protruding complex locking groove, lockpin through -hole and locking groove are located respectively below the bottom surface of this dovetail groove more than and. The utility model has the advantages that: simplify the cooperation structure between sleeve, coupling and the lockpin three, made things convenient for production, improved production efficiency, reduced manufacturing cost.
Description
Technical field
The utility model relates to a kind of connector for steel-tube scaffold of improvement, for building operations.
Background technology
Prior art is utility model patent (CN103074999B) disclosed " steel tube scaffold connector ", and its primary structure comprises sleeve and union, is provided with the trapezoidal key of four swallow-tail forms be uniformly distributed along the circumference at the outer peripheral face of this sleeve; The dovetail groove being respectively equipped with ring-type socket joint platform at the two ends of this union and coordinating with this trapezoidal key, this trapezoidal key inserts in this dovetail groove, be provided with the lock pin through hole perpendicular with the length direction of this dovetail groove at the middle part of this union, enter lock pin in this lock pin through hole interpolation.Be provided with convex top at the end face of the narrow end of described trapezoidal key, be provided with in the bottom surface of this dovetail groove through these dovetail groove two ends and the groove be slidably matched with this convex top; Be provided with trapezoidal projection near the middle part of described lock pin, the locking groove that the wide end being provided with trapezoidal projection with this in the side that the bottom surface of this lock pin through hole and dovetail groove is adjacent is slidably matched, this locking groove intersects mutually with the groove of this dovetail groove bottom surface.
The shortcoming that above-mentioned prior art exists is: its structure " be provided with convex top at the end face of the narrow end of trapezoidal key; be provided with in the bottom surface of this dovetail groove through these dovetail groove two ends and the groove be slidably matched with this convex top " complex structure of product and mould, production difficulty strengthens, and improves cost of production.
Summary of the invention
The utility model aims to provide a kind of connector for steel-tube scaffold of improvement, and to solve the complex structure that prior art exists, production difficulty is large, the problem that cost of production is high.
The technical solution of the utility model is: a kind of connector for steel-tube scaffold of improvement, comprises sleeve and union, is provided with the trapezoidal key of four swallow-tail forms be uniformly distributed along the circumference at the outer peripheral face of this sleeve; The dovetail groove being respectively equipped with ring-type socket joint platform at the two ends of this union and coordinating with this trapezoidal key, this trapezoidal key inserts in this dovetail groove, the lock pin through hole perpendicular with the length direction of this dovetail groove is provided with at the middle part of this union, lock pin is entered in this lock pin through hole interpolation, it is characterized in that, be provided with the cotter way that the length direction of key trapezoidal with this is vertical at the middle part of described trapezoidal key, be provided with at the middle part near described lock pin the trapezoidal projection coordinated with this cotter way; Be provided with the locking groove that trapezoidal projection with this is slidably matched in the side that the bottom surface of this lock pin through hole and dovetail groove is adjacent, this lock pin through hole is positioned at below the bottom surface of this dovetail groove, and this locking groove is positioned at more than the bottom surface of this dovetail groove.
Described lock pin through hole is circular hole; Described locking groove is rectangular recess, and its width is less than the diameter of lock pin through hole.
The groove along length direction is provided with at the end face of the trapezoidal key of described sleeve.
Be connected with connecting axle at the ring-type socket joint platform of this union, be provided with pin-and-hole on the top of this connecting axle.
Radial direction through hole is provided with at the two ends of described lock pin.
The utility model has the advantages that: simplify sleeve, fit structure between union and lock pin three, facilitate production, improve production efficiency, reduce cost of production.
Accompanying drawing explanation
Fig. 1 is the general structure schematic diagram of the present utility model top view of the connector at P place (in the Figure 12);
Fig. 2 is the perspective view of the utility model sleeve;
Fig. 3 is the view of Fig. 2 side;
Fig. 4 is the A-A sectional view of Fig. 3;
Fig. 5 is the structural representation that union of the present utility model is provided with dovetail groove one end;
Fig. 6 is the left view of Fig. 5;
Fig. 7 is the rear elevation of Fig. 5;
Fig. 8 is the upward view of Fig. 5;
Fig. 9 is the C-C sectional view (turning clockwise 90 °) of Fig. 8;
Figure 10 is the front view (side view) of this practical novel lock pin;
Figure 11 is the top view of Figure 10;
Figure 12 is the perspective view of the scaffold adopting connector of the present utility model assembling.
Detailed description of the invention
See Fig. 1-Figure 12, the connector for steel-tube scaffold of a kind of improvement of the utility model, comprises sleeve 1 and union 2, is provided with the trapezoidal key 11 of four swallow-tail forms be uniformly distributed along the circumference at the outer peripheral face of this sleeve 1; The dovetail groove 21 being respectively equipped with ring-type socket joint platform 23 at the two ends of this union 2 and coordinating with this trapezoidal key 11, this trapezoidal key 11 inserts in this dovetail groove 21, be provided with the lock pin through hole 22 perpendicular with the length direction of this dovetail groove 21 at the middle part of this union 2, in this lock pin through hole 22, insert lock pin 3.Be provided with the cotter way 12 that the length direction of key trapezoidal with this is vertical at the middle part of described trapezoidal key 11, be provided with coordinate with this cotter way 12 trapezoidal protruding 31 at the middle part near described lock pin 3.The side adjacent with the bottom surface of dovetail groove 21 at this lock pin through hole 22 is provided with trapezoidal protruding 31 locking grooves 221 be slidably matched with this, this lock pin through hole 22 is positioned at below the bottom surface of this dovetail groove 21, and this locking groove 221 is positioned at more than the bottom surface of this dovetail groove 21 (see Fig. 9).
Described lock pin through hole 22 is circular hole; Described locking groove 221 is rectangular recess, and its width is less than the diameter of lock pin through hole 22.
In order to save raw material, be provided with the groove 13 along length direction at the end face of the trapezoidal key 11 of described sleeve 1
Be provided with radial direction through hole 32 at the two ends of described lock pin 3, for insertion opening pin 9, prevent lock pin 3 from deviating from.On lock pin 3 trapezoidal protruding 31 be not in middle part (deflection one end), and such lock pin 3, when all not extracting, can play the effect of unblock, easy to use.
The utility model is when assembling, in the dovetail groove 21 of the narrow end Inserting Tube joint 2 of a trapezoidal key 11 of sleeve 1, lock pin 3 is inserted in the lock pin through hole 22 of union 2, after trapezoidal protruding 31 on lock pin 3 is inserted into middle part, trapezoidal protruding 31(has wedge effect) be inserted in the middle part of trapezoidal key 11 cotter way 12 in, trapezoidal key 11 is locked in securely in dovetail groove 21 (as shown in Figure 1).
Also can be welded to connect axle 4 at the ring-type socket joint platform 23 of union 2, be provided with pin-and-hole 41 on the top of this connecting axle, and be furnished with the pin supporting with this pin-and-hole 41, for the connection (see Fig. 1 and Figure 12) with vertical inclined tube 7.
The ring-type socket joint platform 23 of union 2 also can be common bevel for welding.
See Figure 12 and Fig. 1, adopt the scaffold that connector of the present utility model is assembled into, comprise standpipe 14, horizontal plane transverse pipe 10, horizontal plane longitudinal pipe 6, horizontal inclined tube 5, vertical inclined tube 7 and 8 and connector of the present utility model, the sleeve 1 of connector is inserted in standpipe 14, and is welded to each other; Horizontal plane transverse pipe 10, horizontal plane longitudinal pipe 6 are relative with the ring-type socket joint platform 23 of two unions 2 of connector respectively to be welded; Horizontal inclined tube 5 is connected with one end of the lock pin 3 on two unions 2 respectively with the vertical inclined tube 8 in outside; The vertical inclined tube 7 of side is connected with the connecting axle 4 on a union 2 in addition.
Claims (5)
1. the connector for steel-tube scaffold improved, comprises sleeve and union, is provided with the trapezoidal key of four swallow-tail forms be uniformly distributed along the circumference at the outer peripheral face of this sleeve; The dovetail groove being respectively equipped with ring-type socket joint platform at the two ends of this union and coordinating with this trapezoidal key, this trapezoidal key inserts in this dovetail groove, the lock pin through hole perpendicular with the length direction of this dovetail groove is provided with at the middle part of this union, lock pin is entered in this lock pin through hole interpolation, it is characterized in that, be provided with the cotter way that the length direction of key trapezoidal with this is vertical at the middle part of described trapezoidal key, be provided with at the middle part near described lock pin the trapezoidal projection coordinated with this cotter way; Be provided with the locking groove that trapezoidal projection with this is slidably matched in the side that the bottom surface of this lock pin through hole and dovetail groove is adjacent, this lock pin through hole is positioned at below the bottom surface of this dovetail groove, and this locking groove is positioned at more than the bottom surface of this dovetail groove.
2. the connector for steel-tube scaffold of improvement according to claim 1, is characterized in that, described lock pin through hole is circular hole; Described locking groove is rectangular recess, and its width is less than the diameter of lock pin through hole.
3. the connector for steel-tube scaffold of improvement according to claim 1, is characterized in that, is provided with the groove along length direction at the end face of the trapezoidal key of described sleeve.
4. the connector for steel-tube scaffold of improvement according to claim 1, is characterized in that, is connected with connecting axle, is provided with pin-and-hole on the top of this connecting axle at the ring-type socket joint platform of this union.
5. the connector for steel-tube scaffold of improvement according to claim 1, is characterized in that, is provided with radial direction through hole at the two ends of described lock pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520894043.9U CN205100540U (en) | 2015-11-11 | 2015-11-11 | Modified steel pipe scaffold connecting piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520894043.9U CN205100540U (en) | 2015-11-11 | 2015-11-11 | Modified steel pipe scaffold connecting piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205100540U true CN205100540U (en) | 2016-03-23 |
Family
ID=55516328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520894043.9U Expired - Fee Related CN205100540U (en) | 2015-11-11 | 2015-11-11 | Modified steel pipe scaffold connecting piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205100540U (en) |
-
2015
- 2015-11-11 CN CN201520894043.9U patent/CN205100540U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160323 Termination date: 20181111 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |