CN204591910U - A kind of trendy heavy crab-bolt - Google Patents
A kind of trendy heavy crab-bolt Download PDFInfo
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- CN204591910U CN204591910U CN201520268299.9U CN201520268299U CN204591910U CN 204591910 U CN204591910 U CN 204591910U CN 201520268299 U CN201520268299 U CN 201520268299U CN 204591910 U CN204591910 U CN 204591910U
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- bolt
- crab
- nylon washer
- heavy
- screw rod
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Abstract
The utility model discloses a kind of trendy heavy crab-bolt, comprise hex head bolt, this hex head bolt is made up of threaded screw rod and the hex-shaped head being positioned at screw rod one end, on the screw rod of described hex head bolt, cover has butterfly gasket, sleeve pipe, nylon washer, friction cylinder, tapered cup nut successively, wherein butterfly gasket is arranged near above-mentioned hex-shaped head side, and tapered cup nut is rotatably connected in screw rod the other end place.Product be mainly used in guide rail bracket of elevator, the coil holder of nuclear power, crane span structure, guardrail etc. the installation of project and fixing, the plastic washer that on market, some heavy crab-bolts are middle when installing and the expansion intermediate plate of head are due to the problem in material and structure etc., easily go to sticks and staves when knocking in or be difficult to expand, thus rotation in hole time crab-bolt is installed, cause expanding, affect the Safety performance of crab-bolt; And adopt trendy heavy crab-bolt, can solve plastic washer fragmentation, crab-bolt rotation, friction plate cannot expand, and greatly increases safety coefficient.
Description
Technical field
The utility model relates to the technical field of expansion anchor, specifically a kind of trendy heavy crab-bolt, and it thoroughly can solve crab-bolt rotation in porthole, the situation that cannot expand.
Background technique
At present, the expansion intermediate plate of the plastic washer that some the heavy crab-bolts on market are middle when installing and head is due to the problem in material and structure etc., easily go to sticks and staves when knocking in or be difficult to expand, thus rotation in hole time crab-bolt is installed, cause expanding, affect the Safety performance of crab-bolt.
Summary of the invention
The purpose of this utility model is to provide a kind of trendy heavy crab-bolt, and it improves the structure of packing ring and friction cylinder, effectively increases the bulk strength of packing ring, meanwhile, effectively increases the surface friction coefficient of friction cylinder, prevents its rotation.
To achieve these goals, the technical solution of the utility model is: a kind of trendy heavy crab-bolt, comprise hex head bolt, this hex head bolt is made up of threaded screw rod and the hex-shaped head being positioned at screw rod one end, it is characterized in that: on the screw rod of described hex head bolt, cover has butterfly gasket, sleeve pipe, nylon washer, friction cylinder, tapered cup nut successively, wherein butterfly gasket is arranged near above-mentioned hex-shaped head side, and tapered cup nut is rotatably connected in screw rod the other end place.
The utility model discloses a kind of trendy heavy crab-bolt, be mainly used in guide rail bracket of elevator, the coil holder of nuclear power, crane span structure, guardrail etc. the installation of project and fixing, its difference with the prior art is: the plastic washer that on market, some heavy crab-bolts are middle when installing and the expansion intermediate plate of head are due to the problem in material and structure etc., easily go to sticks and staves when knocking in or be difficult to expand, thus rotation in hole time crab-bolt is installed, cause expanding, affect the Safety performance of crab-bolt; And adopt trendy heavy crab-bolt, can solve plastic washer fragmentation, crab-bolt rotation, friction plate cannot expand, and greatly increases safety coefficient.
Accompanying drawing explanation
Fig. 1 is for being the utility model structural representation.
Fig. 2 is the utility model friction cylinder structural representation.
Fig. 3 is the utility model nylon washer structural representation.
Fig. 4 is the utility model nylon washer end cross-section.
Fig. 5 is the utility model butterfly gasket structural representation.
Wherein:
1, hex head bolt;
2, butterfly gasket;
3, sleeve pipe;
4, nylon washer;
5, friction cylinder;
6, tapered cup nut;
7, ring-type strengthens step;
8, reverse circular step;
9, annular recess;
10, at the bottom of oblique slot;
11, double wedge;
12, reverse step;
13, guiding surface;
14, anti-sidespin projection;
15, anti-sidespin notch;
16, strip gap;
17, opening end;
18, oval-clearance;
19, high strength intumescent sheet;
20, strip projected parts.
Embodiment
With reference to the accompanying drawings, the utility model is described further.
The utility model discloses a kind of trendy heavy crab-bolt, comprise hex head bolt 1, this hex head bolt 1 is made up of threaded screw rod and the hex-shaped head being positioned at screw rod one end, it is different from prior art and is: on the screw rod of described hex head bolt 1, cover has butterfly gasket 2, sleeve pipe 3, nylon washer 4, friction cylinder 5, tapered cup nut 6 successively, wherein butterfly gasket 2 is arranged near above-mentioned hex-shaped head side, and tapered cup nut 6 is rotatably connected in screw rod the other end place.
In the specific implementation, cylindrically, this sleeve pipe 3 noose is outside at screw rod, and form gap between the inwall of sleeve pipe 3 and the outer wall of screw rod, one end of sleeve pipe 3 props up butterfly gasket 2, and the other end of sleeve pipe 3 props up nylon washer 4 for above-mentioned sleeve pipe 3.
In the specific implementation, above-mentioned nylon washer 4 is approximate in circular, one end edge of this nylon washer 4 ring body or the place of keeping to the side form protruding ring-type and strengthen step 7, nylon washer 4 ring body is formed near middle section and strengthens with above-mentioned ring-type the reverse circular step 8 that step 7 direction arranges, ring-type is strengthened step 7 and is oppositely formed annular recess 9 between circular step 8, the bottom land of this annular recess 9 to be formed slopely at the bottom of oblique slot 10 to reverse circular step 8 direction, at the bottom of oblique slot, 10 is lower near reverse circular step 8 end horizontal position, the angle of the 10 interior included angle A axially formed with nylon washer 4 at the bottom of oblique slot is 3 degree-15 and spends, the other end place of keeping to the side of nylon washer 4 ring body is evenly distributed with double wedge 11, it is surperficial and surperficial perpendicular to nylon washer 4 that double wedge 11 protrudes from nylon washer 4, one end of double wedge 11 forms reverse step 12, the other end of double wedge 11 forms a guiding surface 13, this guiding surface 13 is arranged near nylon washer 4 ring body the other end edge, nylon washer 4 ring body the other end edge outwards forms at least one piece of protruding anti-sidespin projection 14, anti-sidespin projection 14 surface is positioned at same level with nylon washer 4 surface.
In the specific implementation, described friction cylinder 5 entirety is in tubular, the edge of friction cylinder 5 one end forms the anti-sidespin notch 15 coordinated with above-mentioned anti-sidespin projection 14, the barrel place of friction cylinder 5 offers three strip gaps 16, article three, strip gap 16 is all along friction cylinder 5 axial distribution, article three, strip gap 16 barrel place equidistantly distribute, the one end in strip gap 16 is closed end, the other end in strip gap 16 is opening end 17, this opening end 17 is opening-like, the opening end 17 in strip gap 16 is positioned at the other end of friction cylinder 5, the closed end in strip gap 16 is closed form, this closed end forms an oval-clearance 18, the width of this oval-clearance 18 is greater than the width in strip gap 16, article two, friction cylinder 5 barrel between adjacent strip gap 16 is high strength intumescent sheet 19, this high strength intumescent sheet 19 outer surface is provided with strip projected parts 20 near free end place, the distribution arrangement of this strip projected parts 20 and the axial vertical of friction cylinder 5, high strength intumescent sheet 19 outer surface is provided with fusoid reinforcement salient point 21, the free end that this reinforcement salient point 21 leaves high strength intumescent sheet 19 compares strip projected parts 20, and to leave the free end outline of high strength intumescent sheet 19 far away.
In the specific implementation, the top of described tapered cup nut 6 is circular cone shape, and the diameter of tapered cup nut 6 one end is less than the intracavity diameter of friction cylinder 5, and the diameter of tapered cup nut 6 the other end is greater than the intracavity diameter of friction cylinder 5.
Product after mounting, 1. twists the head of hex head bolt by torque spanner, nylon washer blocks intumescent sheet firmly and prevents friction plate from rotating, and surperficial several salient point can increase the frictional force with concrete hole simultaneously, prevents autobiography; 2. along with torsion increases, sleeve pipe becomes large to the pressure of nylon washer, and nylon washer connects ladder place and can compress to the inside, and along with groove oblique angle place along with the external diameter of pressure more conference nylon washer can more swell, frictional force can be larger; 3. intumescent sheet uses high-strength material instead, and the anti-skidding influential point of tendons above 4. intumescent sheets that make also to expand on high-grade concrete increases the safety coefficient that product normally uses; Middle blade type (spindle) strengthens salient point, being when running into ultimate load, can improving the stability of product.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that the utility model is specifically implemented to be confined to these explanations above-mentioned.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, some simple deduction or replace can also be made, all should be considered as belonging to protection domain of the present utility model.
Claims (6)
1. a trendy heavy crab-bolt, comprise hex head bolt (1), this hex head bolt (1) is made up of threaded screw rod and the hex-shaped head being positioned at screw rod one end, it is characterized in that: on the screw rod of described hex head bolt (1), cover has butterfly gasket (2), sleeve pipe (3), nylon washer (4), friction cylinder (5), tapered cup nut (6) successively, wherein butterfly gasket (2) is arranged near above-mentioned hex-shaped head side, and tapered cup nut (6) is rotatably connected in screw rod the other end place.
2. the trendy heavy crab-bolt of one according to claim 1, it is characterized in that: above-mentioned sleeve pipe (3) cylindrically, this sleeve pipe (3) noose is outside at screw rod, gap is formed between the inwall of sleeve pipe (3) and the outer wall of screw rod, one end of sleeve pipe (3) props up butterfly gasket (2), and the other end of sleeve pipe (3) props up nylon washer (4).
3. the trendy heavy crab-bolt of one according to claim 1, it is characterized in that: above-mentioned nylon washer (4) is approximate in circular, one end edge of this nylon washer (4) ring body or the place of keeping to the side form protruding ring-type and strengthen step (7), nylon washer (4) ring body is formed near middle section and strengthens with above-mentioned ring-type the reverse circular step (8) that step (7) direction arranges, ring-type is strengthened forming annular recess (9) between step (7) and reverse circular step (8), the bottom land of this annular recess (9) is formed slopely (10) at the bottom of oblique slot to reverse circular step (8) direction, the angle of the interior included angle A that (10) at the bottom of this oblique slot are axially formed with nylon washer (4) is 3 degree-15 and spends, the other end place of keeping to the side of nylon washer (4) ring body is evenly distributed with double wedge (11), it is surperficial and surperficial perpendicular to nylon washer (4) that double wedge (11) protrudes from nylon washer (4), one end of double wedge (11) forms reverse step (12), the other end of double wedge (11) forms a guiding surface (13), this guiding surface (13) is arranged near nylon washer (4) ring body the other end edge, nylon washer (4) ring body the other end edge outwards forms at least one piece of protruding anti-sidespin projection (14), anti-sidespin projection (14) surface is positioned at same level with nylon washer (4) surface.
4. the trendy heavy crab-bolt of one according to claim 1, it is characterized in that: described friction cylinder (5) entirety is in tubular, the edge of friction cylinder (5) one end forms the anti-sidespin notch (15) coordinated with anti-sidespin projection (14), the barrel place of friction cylinder (5) offers three strip gaps (16), article three, strip gap (16) are all along friction cylinder (5) axial distribution, article three, strip gap (16) barrel place equidistantly distribute, the one end in strip gap (16) is closed end, the other end in strip gap (16) is opening end (17), this opening end (17) is opening-like, the opening end (17) in strip gap (16) is positioned at the other end of friction cylinder (5), the closed end in strip gap (16) is closed form, this closed end forms an oval-clearance (18), the width of this oval-clearance (18) is greater than the width of strip gap (16), article two, friction cylinder (5) barrel between adjacent strip gap (16) is high strength intumescent sheet (19), this high strength intumescent sheet (19) outer surface is provided with strip projected parts (20) near free end place, the distribution arrangement of this strip projected parts (20) and the axial vertical of friction cylinder (5), high strength intumescent sheet (19) outer surface is provided with fusoid reinforcement salient point (21), the free end that this reinforcement salient point (21) leaves high strength intumescent sheet (19) compares strip projected parts (20), and to leave the free end outline of high strength intumescent sheet (19) far away.
5. the trendy heavy crab-bolt of one according to claim 1, it is characterized in that: the top of described tapered cup nut (6) is circular cone shape, the diameter of tapered cup nut (6) one end is less than the intracavity diameter of friction cylinder (5), and the diameter of tapered cup nut (6) the other end is greater than the intracavity diameter of friction cylinder (5).
6. the trendy heavy crab-bolt of one according to claim 1, is characterized in that: described butterfly gasket (2) entirety in umbrella, butterfly gasket (2) center higher than edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520268299.9U CN204591910U (en) | 2015-04-29 | 2015-04-29 | A kind of trendy heavy crab-bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520268299.9U CN204591910U (en) | 2015-04-29 | 2015-04-29 | A kind of trendy heavy crab-bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204591910U true CN204591910U (en) | 2015-08-26 |
Family
ID=53928066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520268299.9U Active CN204591910U (en) | 2015-04-29 | 2015-04-29 | A kind of trendy heavy crab-bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204591910U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106351926A (en) * | 2016-09-19 | 2017-01-25 | 浙江亦宸五金有限公司 | Anti-rotating expansion bolt |
| CN112483524A (en) * | 2019-09-12 | 2021-03-12 | 喜利得股份公司 | Expansion anchor bolt |
-
2015
- 2015-04-29 CN CN201520268299.9U patent/CN204591910U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106351926A (en) * | 2016-09-19 | 2017-01-25 | 浙江亦宸五金有限公司 | Anti-rotating expansion bolt |
| CN112483524A (en) * | 2019-09-12 | 2021-03-12 | 喜利得股份公司 | Expansion anchor bolt |
| CN112483524B (en) * | 2019-09-12 | 2022-12-16 | 喜利得股份公司 | Expansion anchor bolt |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |