CN202301363U - Connecting bolt of coupler - Google Patents
Connecting bolt of coupler Download PDFInfo
- Publication number
- CN202301363U CN202301363U CN201120430647XU CN201120430647U CN202301363U CN 202301363 U CN202301363 U CN 202301363U CN 201120430647X U CN201120430647X U CN 201120430647XU CN 201120430647 U CN201120430647 U CN 201120430647U CN 202301363 U CN202301363 U CN 202301363U
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- China
- Prior art keywords
- bolt
- connecting bolt
- coupling
- cross
- section
- 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
The utility model discloses a connecting bolt of a coupler. The connecting bolt comprises a bolt body and a nut matched with the bolt body, wherein the lower part of the bolt body is provided with a connecting thread, and the upper part of the bolt body is provided with a bolt head; and the diameter of the cross section of the bolt head is larger than that of the cross section of the bolt body. The connecting bolt is characterized in that the bolt head is provided with an internal hexagonal groove. According to the connecting bolt disclosed by the utility model, a linear groove at the head part of the connecting bolt is changed into the internal hexagonal groove, so that the internal hexagonal groove also cannot be deformed under the condition that the coupler works for long time, and also cannot be corroded and deformed in short time, and further the convenience for demounting and mounting of the coupler are effectively guaranteed. The connecting bolt has the advantages of compact structure, good beneficial effect and convenience in promotion and application.
Description
Technical field
The utility model relates to a kind of coupling connecting bolt, in particular, relates in particular to the coupling connecting bolt that a kind of connecting bolt is provided with interior six grooves.
Background technique
In the link of Petroleum Production, use centrifugal pump; Detect in the maintenance by three levels of centrifugal pump, overhaul, pump concentricity, tear pump open, change pump, in the work such as pump test run and examination; Often need the dismounting coupling; The maintenance man usually runs into the problem of coupling dismounting difficulty, causes the situation that the dismounting personnel increase, dismounting efficient reduces to happen occasionally.This is so long as owing to the dismounting of connecting bolt in the connection set of coupling is relatively more difficult.What use on the coupling now is pan bolt, and straight groove is arranged at its top, and is illustrated in figures 1 and 2 like specification.In the centrifugal pump long-play, the straight groove distortion causes its firm force bearing point to disappear, and removes very difficulty.Bolt is very easily corroded in the middle of long-play, if the outside usage space of coupling bolt is narrower in to be replaced, the instruments such as bottle opener that the maintenance man uses can't be exerted all one's strength, and causes dismounting difficulty and fragile dismantling device.
Summary of the invention
The utility model is in order to overcome the shortcoming of above-mentioned technical problem, the coupling connecting bolt that provides a kind of connecting bolt to be provided with interior six grooves.
The coupling connecting bolt of the utility model comprises the body of bolt and the nut that matches with the body of bolt, and the bottom of this body of bolt is provided with connecting thread, and top is set with bolt head; The diameter of said bolt head cross section is greater than the diameter of body of bolt cross section, and its specialization is: said bolt head is provided with interior six grooves.Connecting bolt is realized the fastening effect to coupling, plays the purpose of fixing two coupling shafts.Nut be used for be arranged on the body of bolt on connecting thread match, realize fastening effect.On bolt head, be provided with after the hole of interior six flute profile formulas, just greatly facilitate the fastening of connecting bolt and dismounting; In the process of centrifugal pump long-time running, also can avoid the interior six grooves distortion on the connecting bolt, guaranteed the reliability of connecting bolt dismounting.
The coupling connecting bolt of the utility model, the said body of bolt are provided with the diameter of connecting thread part cross section less than the diameter that is not provided with the helical thread portion cross section.The body of bolt that helical thread portion is not set can effectively guarantee the intensity of connecting bolt greater than the diameter that is provided with the helical thread portion body of bolt.
The coupling connecting bolt of the utility model, the cross section of said interior six grooves is a regular hexagon.Because existing hexagon wrench and hexagon socket head cap screw are regular hexagon, are convenient to match with existing spanner, have enlarged using scope and guaranteed the facility of using.
The coupling connecting bolt of the utility model, the orthohexagonal inscribed circle diameter at the cross section place of said interior six grooves is 10mm; The degree of depth of interior six grooves is 6mm.
The beneficial effect of the utility model is: the coupling connecting bolt of the utility model; Through changing the straight groove of connecting bolt head into interior six grooves; Make coupling under situation about working long hours; Interior six grooves can not deform yet, and are difficult for the distortion that is corroded at short notice yet, have guaranteed coupling dismounting and the convenience of installing effectively.
Description of drawings
Fig. 1 is the structural representation of existing coupling;
Fig. 2 is the structural representation of the connecting bolt on the existing coupling;
Fig. 3 is the structural representation of the coupling connecting bolt of the utility model;
Among the figure: 1 coupling, 2 connecting bolts, 3 straight groovees, 4 coupling shafts, 5 bodies of bolt, 6 bolt heads, 7 connecting threads, 8 interior six grooves.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
As depicted in figs. 1 and 2, provided the structural representation of existing coupling and the structural representation of connecting bolt, it comprises coupling 1, connecting bolt 2, straight groove 3, coupling shaft 4; Shown coupling shaft 4 is arranged in the coupling 1, and connecting bolt 2 is used for matching with coupling 1, realizes fixing coupling shaft 4.Shown connecting bolt 2 heads are provided with straight groove 3, are used for the installation and removal of connecting bolt 2.But adopt the drawback of straight groove 3 to be, it is easy deformation under the long runnability of coupling, or is corroded easily and be out of shape, and this has just caused connecting bolt be inconvenient to dismantle and perhaps replacing has been installed frequently.
As shown in Figure 3, provided the structural representation of the coupling connecting bolt of the utility model, it comprises the body of bolt 5, bolt head 6, connecting thread 7, interior hexagonal 8; The shown body of bolt 5 is cylindrical, and the lower portion of the body of bolt 5 is provided with connecting thread 7, and connecting thread 7 is used for matching with nut, realizes the fixing of whole connecting bolt.In order to guarantee that whole connecting bolt has bigger intensity, the cross-sectional diameter that the screw thread position is not set on the body of bolt is greater than the diameter that is provided with connecting thread 7 parts.Bolt head 6 is arranged on the upper end position of the body of bolt 5, offers interior six grooves 8 on the bolt head 6, and the cross section of interior six grooves 8 is a regular hexagon, cooperates with the effective of existing hexagon wrench so that realize.The orthohexagonal inscribed circle diameter at the cross section of six grooves place can be set to 10mm in said; The degree of depth of interior six grooves can be set to 6mm.The utility model is through changing the straight groove of connecting bolt head into interior six grooves; Make coupling under situation about working long hours; Interior six grooves can not deform yet, and are difficult for the distortion that is corroded at short notice yet, have guaranteed coupling dismounting and the convenience of installing effectively.
Claims (4)
1. a coupling connecting bolt comprises the body of bolt (5) and the nut that matches with the body of bolt, and the bottom of this body of bolt is provided with connecting thread (7), and top is set with bolt head (6); The diameter of said bolt head cross section is characterized in that greater than the diameter of body of bolt cross section: said bolt head (6) is provided with interior six grooves (8).
2. coupling connecting bolt according to claim 1 is characterized in that: the said body of bolt (5) is provided with the diameter of connecting thread (7) part cross section less than the diameter that is not provided with the helical thread portion cross section.
3. coupling connecting bolt according to claim 1 and 2 is characterized in that: the cross section of six grooves (8) is a regular hexagon in said.
4. coupling connecting bolt according to claim 3 is characterized in that: the orthohexagonal inscribed circle diameter at the cross section of six grooves (8) place is 10mm in said; The degree of depth of interior six grooves (8) is 6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120430647XU CN202301363U (en) | 2011-11-03 | 2011-11-03 | Connecting bolt of coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120430647XU CN202301363U (en) | 2011-11-03 | 2011-11-03 | Connecting bolt of coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202301363U true CN202301363U (en) | 2012-07-04 |
Family
ID=46370271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120430647XU Expired - Fee Related CN202301363U (en) | 2011-11-03 | 2011-11-03 | Connecting bolt of coupler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202301363U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776103A (en) * | 2015-03-19 | 2015-07-15 | 镇江索达联轴器有限公司 | Dedicated bolt for diaphragm coupler |
| CN105007849A (en) * | 2012-12-17 | 2015-10-28 | 德普伊(爱尔兰)有限公司 | Twist-drivable pin assembly |
-
2011
- 2011-11-03 CN CN201120430647XU patent/CN202301363U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105007849A (en) * | 2012-12-17 | 2015-10-28 | 德普伊(爱尔兰)有限公司 | Twist-drivable pin assembly |
| US11071574B2 (en) | 2012-12-17 | 2021-07-27 | Depuy Ireland Unlimited Company | Twist-drivable pin assembly |
| CN104776103A (en) * | 2015-03-19 | 2015-07-15 | 镇江索达联轴器有限公司 | Dedicated bolt for diaphragm coupler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20121103 |