CN202345885U - Manhole guardrail - Google Patents
Manhole guardrail Download PDFInfo
- Publication number
- CN202345885U CN202345885U CN2011204758570U CN201120475857U CN202345885U CN 202345885 U CN202345885 U CN 202345885U CN 2011204758570 U CN2011204758570 U CN 2011204758570U CN 201120475857 U CN201120475857 U CN 201120475857U CN 202345885 U CN202345885 U CN 202345885U
- Authority
- CN
- China
- Prior art keywords
- manhole
- guardrail
- groove
- bolt
- type draw
- 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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- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The utility model provides a manhole guardrail. A U-shaped clamping groove is fixedly mounted at the bottom end of the manhole guardrail; and a nut is arranged on the upper surface of the clamping groove, so that the manhole guardrail not only can be fixedly arranged at a manhole cover opening which is provided with a bolt in advance, but also can be fixedly arranged at a manhole cover opening without the bolt. Therefore, the applicability of the manhole guardrail is improved, and insurance is provided for construction.
Description
Technical field
The present invention relates to a kind of manhole guardrail, particularly a kind of manhole guardrail that is applicable to dissimilar manhole cover mouths.
Background technology
The deck of boats and ships is provided with the manhole that supplies workmen's turnover, does not protect if these manholes are not provided with guardrail, can have potential safety hazard.The manhole guardrail that uses at present is mainly the manhole guardrail of two columns, and is safe, makes things convenient for the workman to pass in and out.But this guardrail is to fix through nut screwing clamping through the bolted connection that the card of lower end and manhole cover mouth are reserved again.For the manhole cover mouth of not reserving bolt, this guardrail just has no idea to use, and therefore has potential safety hazard.
The utility model content
The utility model provides a kind of easy installation and removal, is applicable to the manhole guardrail of various manhole cover mouths.
A kind of manhole guardrail of the utility model; Comprising two legs, is the fence that initial point and terminal point setting have opening with two end points on two legs, it is characterized in that; The bottom vertical fixing of two legs connects an opening direction and fence opening direction U type draw-in groove in the same way; Upper surface at U type draw-in groove is provided with the nut that runs through end face, is inserted with bolt in the nut, can the manhole guardrail be fixed on manhole cover mouth edge when tighting a bolt.
As preferred version, be symmetrical set at least two nuts that run through end face in the upper surface of U type draw-in groove, be inserted with bolt in the nut.
As preferred version, the height of leg is more than or equal to 60cm, smaller or equal to 100cm.
As preferred version, the height of leg is 60cm.
As preferred version, be provided with at least two strut bars of symmetry between leg and the fence.
As preferred version, between leg and U type draw-in groove upper surface, be provided with reinforced rib.
As preferred version, U type draw-in groove is provided with reinforced rib.
A kind of manhole guardrail of the utility model bottom fixed installation U type draw-in groove; The draw-in groove upper surface is provided with nut; Both can the manhole guardrail be fixed on the manhole cover mouth that is preset with bolt, also can be fixed on the manhole cover mouth of not reserving bolt, improve the applicability of manhole guardrail.In addition, the empty guardrail of people is set to 60cm, has both satisfied safety, has also reduced cost.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described.
Fig. 1 manhole guardrail block diagram.
The specific embodiment
As shown in Figure 1; A kind of manhole guardrail; Comprising two legs 3, is that the bottom vertical fixing of 1, two leg 3 of ring-type fence with opening of initial point and terminal point setting connects an opening and fence 1 opening direction U type draw-in groove 4 in the same way with two end points of two leg 3 upper ends; Be symmetrically arranged with four nuts 5 that run through end face in the upper surface of U type draw-in groove 4, be inserted with bolt 6 in the nut 5.The height of the leg 3 of manhole guardrail can be set to 60cm, 80cm, 100cm, preferred 60cm.Between leg 3 and fence 1, be provided with two strut bars 2 of symmetry, between leg 3 and U type draw-in groove 4 upper surfaces, be provided with reinforced rib 8, can increase the stability of manhole guardrail.U type draw-in groove 4 is provided with reinforced rib 7, can increase the intensity of U type draw-in groove.
In use, through tighting a bolt 6, make the lower surface of bolt 6 and U type draw-in groove the manhole guardrail is fixed on the edge of manhole cover mouth.Manhole cover mouth for having reserved bolt can take out bolt 6, lets the reservation bolt from nut 5, pass, and fixes with nut screwing clamping again, also can realize the fixing of manhole guardrail.
Claims (7)
1. manhole guardrail; Comprising two legs (3), is the fence (1) that initial point and terminal point setting have opening with two end points on two legs (3), it is characterized in that; The bottom vertical fixing of two legs (3) connects an opening direction and fence (1) opening direction U type draw-in groove (4) in the same way; Be provided with the nut (5) that runs through end face in the upper surface of U type draw-in groove (4), be inserted with bolt (6) in the nut (5), can the manhole guardrail be fixed on manhole cover mouth edge when tighting a bolt (6).
2. a kind of manhole guardrail according to claim 1 is characterized in that being symmetrical set at least two nuts (5) that run through end face in the upper surface of U type draw-in groove (4), is inserted with bolt (6) in the nut (5).
3. a kind of manhole guardrail according to claim 2, the height that it is characterized in that leg (3) is more than or equal to 60cm, smaller or equal to 100cm.
4. a kind of manhole guardrail according to claim 3 is characterized in that the height of leg (3) equals 60cm.
5. according to claim 1,2,3 or 4 described a kind of manhole guardrails, it is characterized in that between leg (3) and fence (1), being provided with at least two strut bars (2) of symmetry.
6. according to claim 1,2,3 or 4 described a kind of manhole guardrails, it is characterized in that between leg (3) and U type draw-in groove (4) upper surface, being provided with reinforced rib (8).
7. according to claim 1,2,3 or 4 described a kind of manhole guardrails, it is characterized in that U type draw-in groove (4) is provided with reinforced rib (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204758570U CN202345885U (en) | 2011-11-25 | 2011-11-25 | Manhole guardrail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204758570U CN202345885U (en) | 2011-11-25 | 2011-11-25 | Manhole guardrail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202345885U true CN202345885U (en) | 2012-07-25 |
Family
ID=46534906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204758570U Expired - Lifetime CN202345885U (en) | 2011-11-25 | 2011-11-25 | Manhole guardrail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202345885U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107323616A (en) * | 2017-07-05 | 2017-11-07 | 海宁文硕科技咨询有限公司 | A kind of manhole protector of ship |
| WO2019015209A1 (en) * | 2017-07-19 | 2019-01-24 | 广船国际有限公司 | Clamp-type manhole guardrail |
| CN110374471A (en) * | 2019-07-11 | 2019-10-25 | 上海外高桥造船有限公司 | A kind of protective device for sect |
| CN111498011A (en) * | 2020-04-17 | 2020-08-07 | 中船黄埔文冲船舶有限公司 | Guardrail structure for manhole |
-
2011
- 2011-11-25 CN CN2011204758570U patent/CN202345885U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107323616A (en) * | 2017-07-05 | 2017-11-07 | 海宁文硕科技咨询有限公司 | A kind of manhole protector of ship |
| WO2019015209A1 (en) * | 2017-07-19 | 2019-01-24 | 广船国际有限公司 | Clamp-type manhole guardrail |
| CN110374471A (en) * | 2019-07-11 | 2019-10-25 | 上海外高桥造船有限公司 | A kind of protective device for sect |
| CN111498011A (en) * | 2020-04-17 | 2020-08-07 | 中船黄埔文冲船舶有限公司 | Guardrail structure for manhole |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 511462 Nansha District, Guangzhou, Pearl River Management District, West Road, No., the first floor of the layer on the ground floor, No. 68 Patentee after: GUANGZHOU SHIPYARD INTERNATIONAL COMPANY LIMITED Address before: Nansha District Longxuedao Longxue road in Guangzhou city of Guangdong Province in 511462 Guangzhou Wenchong Shipyard Co. Ltd. Patentee before: CSSC Guangzhou Longxue Shipbulding Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120725 |