CN205401343U - Heavy crab -bolt - Google Patents
Heavy crab -bolt Download PDFInfo
- Publication number
- CN205401343U CN205401343U CN201620165622.4U CN201620165622U CN205401343U CN 205401343 U CN205401343 U CN 205401343U CN 201620165622 U CN201620165622 U CN 201620165622U CN 205401343 U CN205401343 U CN 205401343U
- Authority
- CN
- China
- Prior art keywords
- crab
- friction sheet
- screw rod
- bolt
- power friction
- 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
Links
- 239000004677 Nylon Substances 0.000 claims abstract description 15
- 229920001778 nylon Polymers 0.000 claims abstract description 15
- 238000010008 shearing Methods 0.000 claims description 8
- 238000009434 installation Methods 0.000 abstract description 7
- 239000011148 porous material Substances 0.000 abstract 1
- 208000031481 Pathologic Constriction Diseases 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000001215 vagina Anatomy 0.000 description 2
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Landscapes
- Dowels (AREA)
Abstract
The utility model discloses a heavy crab -bolt, an end rotation of screw rod has met a taper nut, and another end rotation of screw rod has met a hexagon nut, has cup jointed powerful friction disc, the locking circle of nylon, the sleeve pipe that shears, plain washer and spring washer on the screw rod between taper nut and the hexagon nut in proper order. Its advantage lies in: 1, the awl cap adopts inclined plane + platform rank, can strengthen friction disc inflation range greatly, and the load is drawn in the increase, resists dynamic load ability reinforce, 2, big oval structure is adopted to the opening bottom of friction disc for range and the lifting surface area of friction disc behind the inflation strengthens greatly, increases the stability of crab -bolt in the concrete the inside, 3, the locking circle of nylon adopts the design of toper step for the crab -bolt is receiving the installation behind the torsion, and the inside to nylon ring is pressed to all pressure, makes the anti -skidding teeth directional that is close to the friction disc end extrude outward, along with the increase of torsion, also increases with the torsion of concrete pore wall thereupon.
Description
Technical field
This utility model relates to the technical field of crab-bolt, specifically a kind of heavy crab-bolt, particularly to the mechanical connecting structure of its crab-bolt.
Background technology
The cone cap of existing common STG formula heavy type crab-bolt adopts common circular cone structure, and single ramp causes that friction plate expansion amplitude is little, resists dynamic load ability；The open bottom of friction plate adopts common trimming semi-circular structure, when friction plate expands, restricts its dilatancy, it is possible to when being subject to bigger load, there is cracking hidden danger bottom friction plate；Existing heavy crab-bolt adopts plastics lock ring, and structure is more single, and after crab-bolt is subject to installation torsion, lock ring and concrete hole wall friction power will not increase, it is easy to cause rotation, affect expansion effect；The shearing resistance sleeve pipe of existing heavy crab-bolt is fitted without mark so that there is shallow embedding during in-site installation and enters phenomenon, affects security performance；The screw head of existing heavy crab-bolt adopts conventional straight post design, is easily destroyed tooth stricture of vagina so that nut is difficult to be screwed into and lock, it does not have anti-autobiography otch in installation is knocked, and the place slightly larger in aperture, this model crab-bolt cannot use.
Utility model content
The purpose of this utility model is in that to provide a kind of heavy crab-bolt.
nullTo achieve these goals，The technical solution of the utility model is: a kind of heavy crab-bolt，It includes screw rod，It is characterized in that: one end of described screw rod is connected with a tapered cup nut，The other end of screw rod is connected with a hex nut，Screw rod between tapered cup nut and hex nut is socketed with power friction sheet successively、Nylon lock ring、Shearing resistance sleeve pipe、Plain washer and spring washer，Above-mentioned power friction sheet is arranged near tapered cup nut，Above-mentioned spring washer is arranged near hex nut，Above-mentioned tapered cup nut is made up of frustum of a cone portion and cylindrical portion，Wherein，The necking end in above-mentioned frustum of a cone portion is arranged near power friction sheet，Above-mentioned power friction sheet entirety is cylindrically，The sidewall of power friction sheet axially offers a strip opening，The top of this strip opening is positioned at the power friction sheet opening part near necking end，The bottom of strip opening is positioned on the sidewall of power friction sheet，And，The bottom ovalize opening of this strip opening，The outer wall place of nylon lock ring forms a circle type conical bench，Nylon lock ring is evenly distributed with some anti-slop serrations in the form of a ring near the outer wall place of power friction sheet one end.
The utility model discloses a kind of heavy crab-bolt, have an advantage in that: 1, cone cap adopts inclined-plane+platform rank, can be greatly enhanced friction plate expansion amplitude, increase drawing load, opposing dynamic load ability is strong；2, the open bottom of friction plate adopts big ellipsoidal structure so that friction plate amplitude upon inflation and lifting surface area are greatly enhanced, and increases crab-bolt stability inside concrete；3, nylon lock ring, adopts type conical bench design so that crab-bolt is installed after torsion being subject to, and all of pressure presses to inside nylon ring so that near friction bit end anti-slop serrations outwardly against, along with the increase of torsion, also increase therewith with the torsion of concrete hole wall；4, shearing resistance sleeve pipe increases minimum embedment depth mark line, specification installation operation technique, improves the security performance of crab-bolt；5, the head of screw rod adopts and knocks end design so that crab-bolt does not affect tooth stricture of vagina after knocking so that nut can lock safely；6, knock end and increase the anti-autobiography otch of cross, when effectively can prevent in-site installation, the situation (installation method: the instrument such as screwdriver or coin of employing press against otch, simultaneously nutting, it is possible to crab-bolt is expanded) can not installed when aperture is slightly larger.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation.
Fig. 2 is criss-cross anti-autobiography notch features schematic diagram.
Wherein:
1, screw rod；
2, tapered cup nut；
3, hex nut；
4, power friction sheet；
5, nylon lock ring；
6, shearing resistance sleeve pipe；
7, plain washer;
8, spring washer；
9, frustum of a cone portion；
10, necking end；
11, strip opening；
12, elliptical openings；
13, circle type conical bench；
14, anti-slop serrations；
15, minimum fitting depth index wire；
16, criss-cross anti-autobiography otch；
17, brake pad；
18, cylindrical portion.
Detailed description of the invention
With reference to the accompanying drawings, this utility model is further described below.
nullThe utility model discloses a kind of heavy crab-bolt，It includes screw rod 1，It is different from prior art and is in that: one end of described screw rod 1 is connected with a tapered cup nut 2，The other end of screw rod 1 is connected with a hex nut 3，Screw rod 1 between tapered cup nut 2 and hex nut 3 is socketed with power friction sheet 4 successively、Nylon lock ring 5、Shearing resistance sleeve pipe 6、Plain washer 7 and spring washer 8，Above-mentioned power friction sheet 4 is arranged near tapered cup nut 2，Above-mentioned spring washer 8 is arranged near hex nut 3，Above-mentioned tapered cup nut 2 is made up of frustum of a cone portion 9 and cylindrical portion 18，Wherein，The necking end 10 in above-mentioned frustum of a cone portion 9 is arranged near power friction sheet 4，Above-mentioned power friction sheet 4 entirety is cylindrically，The sidewall of power friction sheet 4 axially offers a strip opening 11，The top of this strip opening 11 is positioned at the power friction sheet 4 opening part near necking end 10，The bottom of strip opening 11 is positioned on the sidewall of power friction sheet 4，And，The bottom ovalize opening 12 of this strip opening 11，The outer wall place of nylon lock ring 5 forms a circle type conical bench 13，Nylon lock ring 5 is evenly distributed with some anti-slop serrations 14 in the form of a ring near the outer wall place of power friction sheet 4 one end.
In the specific implementation, the outer wall place of described shearing resistance sleeve pipe 6 is provided with a minimum fitting depth index wire 15 of circle.
In the specific implementation, the other end of described screw rod 1 is for knocking end, and this end face knocking end is provided with criss-cross anti-autobiography otch 16.
In the specific implementation, the outer wall place of described power friction sheet 4 is distributed in the form of a ring some brake pads 17, and this brake pad 17 is convex.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, it is impossible to assert that this utility model is embodied as being confined to these explanations above-mentioned.For this utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, it is also possible to make some simple deduction or replace, protection domain of the present utility model all should be considered as belonging to.
Claims (4)
- null1. a heavy crab-bolt，It includes screw rod (1)，It is characterized in that: one end of described screw rod (1) is connected with a tapered cup nut (2)，The other end of screw rod (1) is connected with a hex nut (3)，Screw rod (1) between tapered cup nut (2) and hex nut (3) is socketed with power friction sheet (4) successively、Nylon lock ring (5)、Shearing resistance sleeve pipe (6)、Plain washer (7) and spring washer (8)，Above-mentioned power friction sheet (4) is arranged near tapered cup nut (2)，Above-mentioned spring washer (8) is arranged near hex nut (3)，Above-mentioned tapered cup nut (2) is made up of frustum of a cone portion (9) and cylindrical portion (18)，Wherein，The necking end (10) of above-mentioned frustum of a cone portion (9) is arranged near power friction sheet (4)，Above-mentioned power friction sheet (4) entirety is cylindrically，The sidewall of power friction sheet (4) axially offers a strip opening (11)，The top of this strip opening (11) is positioned at the power friction sheet (4) opening part near necking end (10)，The bottom of strip opening (11) is positioned on the sidewall of power friction sheet (4)，And，Bottom ovalize opening (12) of this strip opening (11)，The outer wall place of nylon lock ring (5) forms circle type conical bench (13)，Nylon lock ring (5) is evenly distributed with some anti-slop serrations (14) in the form of a ring near the outer wall place of power friction sheet (4) one end.
- 2. a kind of heavy crab-bolt according to claim 1, it is characterised in that: the outer wall place of described shearing resistance sleeve pipe (6) is provided with a minimum fitting depth index wire (15) of circle.
- 3. a kind of heavy crab-bolt according to claim 1, it is characterised in that: the other end of described screw rod (1) is for knocking end, and this end face knocking end is provided with criss-cross anti-autobiography otch (16).
- 4. a kind of heavy crab-bolt according to claim 1, it is characterised in that: the outer wall place of described power friction sheet (4) is distributed in the form of a ring some brake pads (17), and this brake pad (17) is convex.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620165622.4U CN205401343U (en) | 2016-03-04 | 2016-03-04 | Heavy crab -bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620165622.4U CN205401343U (en) | 2016-03-04 | 2016-03-04 | Heavy crab -bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205401343U true CN205401343U (en) | 2016-07-27 |
Family
ID=56444891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620165622.4U Expired - Fee Related CN205401343U (en) | 2016-03-04 | 2016-03-04 | Heavy crab -bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205401343U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110552946A (en) * | 2019-09-27 | 2019-12-10 | 鲁东大学 | Locking stopping bolt assembly with single nut |
-
2016
- 2016-03-04 CN CN201620165622.4U patent/CN205401343U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110552946A (en) * | 2019-09-27 | 2019-12-10 | 鲁东大学 | Locking stopping bolt assembly with single nut |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160727 |