CN202325318U - Lateral face limit structure of arc face dental plate and jaw plate groove - Google Patents
Lateral face limit structure of arc face dental plate and jaw plate groove Download PDFInfo
- Publication number
- CN202325318U CN202325318U CN2011203777894U CN201120377789U CN202325318U CN 202325318 U CN202325318 U CN 202325318U CN 2011203777894 U CN2011203777894 U CN 2011203777894U CN 201120377789 U CN201120377789 U CN 201120377789U CN 202325318 U CN202325318 U CN 202325318U
- Authority
- CN
- China
- Prior art keywords
- jaw
- dental lamina
- plate
- dental
- dovetail groove
- 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 - Lifetime
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- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
Provided is a lateral face limit structure of an arc face dental plate and a jaw plate groove. A small semi-circle hole is arranged on the inner lateral face of the dental plate. A large semi-circle counter hole is arranged on the outer lateral face that the jaw plate dovetail groove corresponds, and a screw hole is arranged at the center of the counter bore. After the dental plate is embedded in the jaw plate dovetail groove, the small semi-circle and the large semi-circle are combined to form a whole circle counter hole, and a limit screw is screwed in the whole round counter hole to achieve limit of the dental plate in the dovetail groove. Due to the fact that the length of the dental plate not limited by installation is equal to that of the jaw plate dovetail groove, effective length of the dental plate is increased, service life of the dental plate is prolonged, damage to a round columnar drill is reduced, and the lateral face limit structure is convenient and reliable in structure.
Description
Technical field
The utility model relates to the cambered surface dental lamina and the jaw groove side position limiting structure of oil drilling and well workover Power Tong.
Background technology
Oil drilling and well workover Power Tong are " to bite " tubular pillar drilling tool such as drilling rod to accomplish the shackle operation through the dental lamina that the jaw groove is equipped with, and the torsional forces that dental lamina and jaw carry is very big, so the contact surface of dental lamina and drilling tool is the bigger the better.But what adopt at present is that the dental lamina both ends of the surface that will be contained in the jaw groove are come spacing with screw; Be shorter than the length of jaw groove because of the dental lamina that restriction is installed; Promptly having reduced the contact surface of dental lamina and drilling tool, is example with the drill pipe tong, and the contact surface of dental lamina reduces about 1/3rd; Influence the work quality of Power Tong and the application life of dental lamina, and damaged the tubular pillar drilling tool easily.
Summary of the invention
The purpose of the utility model is that a kind of cambered surface dental lamina and jaw groove side position limiting structure that can increase dental lamina length will be provided.
The utility model solves the new technical scheme that adopts of its technical problem: dental lamina is bumped in the dovetail groove of jaw, and is spacing with stop screw at dental lamina and jaw groove side, at the medial surface of dental lamina the smaller part circular hole is set; Corresponding lateral surface at the jaw dovetail groove is provided with the large semicircle counterbore, and the counterbore center of circle is a screwed hole.After dental lamina was bumped into the jaw dovetail groove, small semicircle and large semicircle synthesized the full circle counterbore, realized that dental lamina is spacing in the jaw dovetail groove behind the screw-in stop screw, made dental lamina lengthening back isometric with the jaw dovetail groove, and this features simple structure is reliable.
The beneficial effect of the utility model is, increased the length and the contact surface of dental lamina, improved the work quality of Power Tong and the application life of dental lamina, alleviated the damage of tubular pillar drilling tool, and is simple and reliable for structure, and the loading and unloading dental lamina is convenient.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the unfolding assumption diagram of the utility model.
(1) jaw among the figure, (2) dental lamina, (3) stop screw.
The specific embodiment
Cambered surface dental lamina and jaw groove side position limiting structure are to be bumped into dental lamina (2) in the dovetail groove by jaw (1), at the medial surface of dental lamina the smaller part circular hole are set; The lateral surface corresponding at the jaw dovetail groove is provided with the large semicircle counterbore, and the counterbore center of circle is a screwed hole.After dental lamina is bumped into the jaw dovetail groove; Small semicircle and large semicircle synthesize the full circle counterbore, screw in stop screw (3) back and realize that dental lamina is spacing in the jaw dovetail groove, because of dental lamina length and jaw dovetail groove that restriction is not installed isometric; Reach the purpose that increases dental lamina length and contact surface, features simple structure is reliable.
Claims (3)
1. cambered surface dental lamina and jaw groove side position limiting structure is characterized in that dental lamina is bumped in the dovetail groove of jaw, carries out spacing in the side of dental lamina and jaw groove with stop screw.
2. cambered surface dental lamina according to claim 1 and jaw groove side position limiting structure is characterized in that the medial surface of dental lamina is provided with the smaller part circular hole.
3. cambered surface dental lamina according to claim 1 and jaw groove side position limiting structure is characterized in that at the corresponding lateral surface of jaw dovetail groove the large semicircle counterbore being set, and the counterbore center of circle is a screwed hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203777894U CN202325318U (en) | 2011-10-09 | 2011-10-09 | Lateral face limit structure of arc face dental plate and jaw plate groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203777894U CN202325318U (en) | 2011-10-09 | 2011-10-09 | Lateral face limit structure of arc face dental plate and jaw plate groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202325318U true CN202325318U (en) | 2012-07-11 |
Family
ID=46437300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203777894U Expired - Lifetime CN202325318U (en) | 2011-10-09 | 2011-10-09 | Lateral face limit structure of arc face dental plate and jaw plate groove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202325318U (en) |
-
2011
- 2011-10-09 CN CN2011203777894U patent/CN202325318U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU RUSHI MACHINERY CO., LTD. Free format text: FORMER OWNER: CAI BINGYU Effective date: 20150602 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 226400 NANTONG, JIANGSU PROVINCE TO: 226406 NANTONG, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150602 Address after: Bencha Zhen Wei 226406 Jiangsu County of Rudong Province Sea Road No. 60 Patentee after: Rushi Machinery Co., Ltd., Jiangsu Address before: 104, room 4, No. 226400, Renmin South Road, No. 89 South Renmin Road, Rudong County, Jiangsu Patentee before: Cai Bingyu |
|
| CP03 | Change of name, title or address |
Address after: Pin Cha Zhen Wei County of Rudong province Jiangsu 226406 Sea Road No. 60 Patentee after: Jiangsu stone machinery Limited by Share Ltd Address before: Bencha Zhen Wei 226406 Jiangsu County of Rudong Province Sea Road No. 60 Patentee before: Rushi Machinery Co., Ltd., Jiangsu |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120711 |
|
| CX01 | Expiry of patent term |