CN206844337U - A kind of improved concrete embedded crab-bolt - Google Patents
A kind of improved concrete embedded crab-bolt Download PDFInfo
- Publication number
- CN206844337U CN206844337U CN201720423032.1U CN201720423032U CN206844337U CN 206844337 U CN206844337 U CN 206844337U CN 201720423032 U CN201720423032 U CN 201720423032U CN 206844337 U CN206844337 U CN 206844337U
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- CN
- China
- Prior art keywords
- crab
- bolt
- bolt bar
- bar
- shaped
- 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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Abstract
Bolting apparatus technical field is the utility model is related to, specifically a kind of improved concrete embedded crab-bolt, including crab-bolt bar, it is characterised in that：Described crab-bolt bar is using the first U-shaped crab-bolt bar or using the second U-shaped crab-bolt bar or the combined type crab-bolt bar being assembled using both；The termination of the first described U-shaped crab-bolt bar is respectively equipped with the first ends screw portion, and assembling screw thread is provided with the middle part of the first cross bar of the first U-shaped crab-bolt bar；The termination of the second described U-shaped crab-bolt bar is respectively equipped with the second ends screw portion, and internal threaded column is provided with the middle part of the second cross bar of the second U-shaped crab-bolt bar.The utility model is compared with prior art, not only flexible using assembling using knockdown U-shaped crab-bolt, and reasonable stress, anchoring strength are high.
Description
Technical field
Bolting apparatus technical field is the utility model is related to, specifically a kind of improved concrete embedded crab-bolt.
Background technology
In steel structure column or steel structure support seat are connected with concrete structure, generally use pre- in advance in concrete structure
Bury the pattern of two or more crab-bolts.Common crab-bolt pattern is shown in Fig. 1 and Fig. 2.But the crab-bolt of this structure is in concrete
Anchorage length deficiency, causes stress undesirable.
Utility model content
The purpose of this utility model overcome the deficiencies in the prior art, there is provided a kind of improved U-shaped crab-bolt is grown to improve anchoring
Degree and installation accuracy, and ensure that stress is more reasonable.
To achieve the above object, a kind of improved concrete embedded crab-bolt of design, including crab-bolt bar, it is characterised in that：Institute
The crab-bolt bar stated is using the first U-shaped crab-bolt bar or using the second U-shaped crab-bolt bar or the combined type crab-bolt being assembled using both
Bar；
The termination of the first described U-shaped crab-bolt bar is respectively equipped with the first ends screw portion, and the first of the first U-shaped crab-bolt bar is horizontal
Assembling screw thread is provided with the middle part of bar；The external diameter of described assembling screw thread is more than the length and width dimensions of remaining bar portion of the first U-shaped crab-bolt bar；
The termination of the second described U-shaped crab-bolt bar is respectively equipped with the second ends screw portion, and the second of the second U-shaped crab-bolt bar is horizontal
Internal threaded column is provided with the middle part of bar；The internal diameter of described internal threaded column is more than the length and width dimensions of remaining bar portion of the second U-shaped crab-bolt bar；
Described combined type crab-bolt bar is：Either end by the internal threaded column of the second U-shaped crab-bolt bar from the first U-shaped crab-bolt bar
Headgear enters connects into the cross in the same direction of the first ends screw portion with the second ends screw portion respectively upward with assembling screw thread afterwards
Structure combined type crab-bolt bar, or connect into the first ends screw portion upward, the second ends screw portion reverse stauros directed downwardly
Structure combined type crab-bolt bar；
The outer wall of the remainder of the first ends screw portion and the first U-shaped crab-bolt bar outside assembling screw thread is removed in cylinder
Or square or triangle.
The outer wall for removing the second U-shaped crab-bolt bar remainder outside the second ends screw portion is in cylindrical or square or triangle
Shape.
The internal diameter of described internal threaded column is more than the radius of curvature of the lateral wall of the kink of the first U-shaped crab-bolt bar.
The utility model is compared with prior art, not only flexible using assembling using knockdown U-shaped crab-bolt, Er Qieshou
Power is reasonable, and anchoring strength is high.
Brief description of the drawings
Fig. 1 is traditional crab-bolt front view in use.
Fig. 2 is that Fig. 1 right sides in use regard schematic diagram.
Fig. 3 is the front view of the first U-shaped crab-bolt bar in the utility model.
Fig. 4 is Fig. 3 left view.
Fig. 5 is the front view of the second U-shaped crab-bolt bar in the utility model.
Fig. 6 is Fig. 5 left view.
Fig. 7 is the front view of cross structure combined type crab-bolt in the same direction in the utility model.
Fig. 8 is the front view of reverse cross structure combined type crab-bolt in the utility model.
Fig. 9 be the utility model embodiment in concrete structure individually pre-buried first U-shaped crab-bolt bar when use schematic diagram.
Figure 10 be the utility model embodiment in concrete structure individually pre-buried second U-shaped crab-bolt bar when use signal
Figure.
Embodiment
The utility model is described further in conjunction with accompanying drawing.
Embodiment 1
Referring to Fig. 3~Figure 10, a kind of improved concrete embedded crab-bolt of the utility model, including crab-bolt bar, its feature exist
In：Described crab-bolt bar is using the first U-shaped crab-bolt bar 1 or using the second U-shaped crab-bolt bar 2 or the combination being assembled using both
Formula crab-bolt bar；
The termination of the first described U-shaped crab-bolt bar 1 is respectively equipped with the first ends screw portion 12, and the of the first U-shaped crab-bolt bar 1
The middle part of one cross bar 11 is provided with assembling screw thread 14；The external diameter of described assembling screw thread 14 is more than remaining bar portion of the first U-shaped crab-bolt bar
Length and width dimensions；
The termination of the second described U-shaped crab-bolt bar 2 is respectively equipped with the second ends screw portion 22, and the of the second U-shaped crab-bolt bar 2
The middle part of two cross bar 21 is provided with internal threaded column 24；The internal diameter of described internal threaded column 24 is more than remaining bar portion of the second U-shaped crab-bolt bar 2
Length and width dimensions；
Described combined type crab-bolt bar is：By the internal threaded column 24 of the second U-shaped crab-bolt bar 2 appointing from the first U-shaped crab-bolt bar 1
One termination point casing is threadedly coupled into the first ends screw portion 12 and the second ends screw portion 22 respectively upward with assembling screw thread 14 after entering
Cross structure combined type crab-bolt bar in the same direction, referring to Fig. 7, or connect into the first ends screw portion 12 upward, the second termination spiral shell
The reversely cross structure combined type crab-bolt bar directed downwardly of line portion 22, referring to Fig. 8；
First ends screw portion 12 chooses whether to be threadedly coupled the first nut 13 as needed；Second 22, ends screw portion
Choose whether to be threadedly coupled the second nut 23 according to needs.Shown in Fig. 8, the second termination spiral shell for being typically poured into concrete
The second nut 23 can not be assembled in line portion 22.Can certainly holding the first U-shaped crab-bolt bar 1 down, the second U-shaped crab-bolt
Holding for bar 2 is set upward.When needing multiple connectors on casting area, the cross structure in the same direction shown in Fig. 7 can be used
Combined type crab-bolt bar assembles the first nut 13 and forms cross structure combined type crab-bolt in the same direction；Without multiple connectors on casting area,
But when needing to improve anchoring strength, the incorgruous cross structure combined type crab-bolt bar shown in Fig. 8 can be used, and above casting area
Assemble the first nut 13 and form incorgruous cross structure combined type crab-bolt.
Referring to Fig. 9, Figure 10, the first U-shaped crab-bolt bar 1 and the second U-shaped crab-bolt bar 2 in certain the utility model also can bases
Need to be used alone, wherein can also be poured into concrete in the internal thread hole of the internal threaded column 24 of the second U-shaped crab-bolt bar 2, increase
Anchoring strength.
Further, remove the first ends screw portion 12 and assemble the remainder of the first U-shaped crab-bolt bar 1 outside screw thread 14
Outer wall be in cylindrical or square or triangle.
Further, the outer wall of the remainder of the second U-shaped crab-bolt bar 2 outside the second ends screw portion 22 is removed in cylinder
Or square or triangle.
Further, the internal diameter of described internal threaded column 24 is more than the song of the lateral wall of the kink of the first U-shaped crab-bolt bar 1
Rate radius, the internal threaded column 24 of the second U-shaped crab-bolt bar 2 is facilitated to pass through the kink.
Claims (4)
1. a kind of improved concrete embedded crab-bolt, including crab-bolt bar, it is characterised in that：Described crab-bolt bar uses the first U-shaped
Crab-bolt bar (1) uses the second U-shaped crab-bolt bar (2) or the combined type crab-bolt bar being assembled using both；
The termination of the first described U-shaped crab-bolt bar (1) is respectively equipped with the first ends screw portion (12), the first U-shaped crab-bolt bar (1)
Assembling screw thread (14) is provided with the middle part of first cross bar (11)；The external diameter of described assembling screw thread (14) is more than the first U-shaped crab-bolt bar
The length and width dimensions of remaining bar portion；
The termination of the second described U-shaped crab-bolt bar (2) is respectively equipped with the second ends screw portion (22), the second U-shaped crab-bolt bar (2)
Internal threaded column (24) is provided with the middle part of second cross bar (21)；The internal diameter of described internal threaded column (24) is more than the second U-shaped crab-bolt bar (2)
Remaining bar portion length and width dimensions；
Described combined type crab-bolt bar is：By the internal threaded column (24) of the second U-shaped crab-bolt bar (2) from the first U-shaped crab-bolt bar (1)
Any termination point casing enters is threadedly coupled into the first ends screw portion (12) and the second ends screw portion (22) with assembling screw thread (14) afterwards
Cross structure combined type crab-bolt bar in the same direction upward respectively, or connect into the first ends screw portion (12) upward, the second termination
Threaded portion (22) reversely cross structure combined type crab-bolt bar directed downwardly；
First ends screw portion (12) chooses whether to be threadedly coupled the first nut (13) as needed；Second ends screw portion (22)
Choose whether to be threadedly coupled the second nut (23) as needed.
A kind of 2. improved concrete embedded crab-bolt as claimed in claim 1, it is characterised in that：Remove the first ends screw
The outer wall of the remainder of the first U-shaped crab-bolt bar (1) of portion (12) and assembling screw thread (14) outside is in cylindrical or square or triangle
Shape.
A kind of 3. improved concrete embedded crab-bolt as claimed in claim 1, it is characterised in that：Remove the second ends screw
The outer wall of second U-shaped crab-bolt bar (2) remainder of portion (22) outside is in cylindrical or square or triangle.
A kind of 4. improved concrete embedded crab-bolt as claimed in claim 1, it is characterised in that：Described internal threaded column
(24) internal diameter is more than the radius of curvature of the lateral wall of the kink of the first U-shaped crab-bolt bar (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720423032.1U CN206844337U (en) | 2017-04-21 | 2017-04-21 | A kind of improved concrete embedded crab-bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720423032.1U CN206844337U (en) | 2017-04-21 | 2017-04-21 | A kind of improved concrete embedded crab-bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206844337U true CN206844337U (en) | 2018-01-05 |
Family
ID=60793870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720423032.1U Expired - Fee Related CN206844337U (en) | 2017-04-21 | 2017-04-21 | A kind of improved concrete embedded crab-bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206844337U (en) |
-
2017
- 2017-04-21 CN CN201720423032.1U patent/CN206844337U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180105 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |