CN105197075A - Transfer cart with LED (Light-Emitting Diode) illumination facility for power equipment of nuclear power plant - Google Patents

Transfer cart with LED (Light-Emitting Diode) illumination facility for power equipment of nuclear power plant Download PDF

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Publication number
CN105197075A
CN105197075A CN201510602774.6A CN201510602774A CN105197075A CN 105197075 A CN105197075 A CN 105197075A CN 201510602774 A CN201510602774 A CN 201510602774A CN 105197075 A CN105197075 A CN 105197075A
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China
Prior art keywords
power equipment
transfer cart
car body
front support
led illumination
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Granted
Application number
CN201510602774.6A
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Chinese (zh)
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CN105197075B (en
Inventor
耿云花
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Han Hong
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Individual
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Priority to CN201810570752.XA priority Critical patent/CN108860236A/en
Priority to CN201510602774.6A priority patent/CN105197075B/en
Priority to CN201810571117.3A priority patent/CN108706022A/en
Publication of CN105197075A publication Critical patent/CN105197075A/en
Application granted granted Critical
Publication of CN105197075B publication Critical patent/CN105197075B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The invention discloses a transfer cart with LED (Light-Emitting Diode) illumination facility for power equipment of a nuclear power plant. The transfer cart for the power equipment of the nuclear power plant is characterized in that the transfer cart is provided with a cart body for loading the power equipment, wherein an openable structure is arranged on at least one sidewall of the cart body; rollers are arranged below the cart body; an LED illumination lamp is arranged in front of the cart body; hooks capable of suspending the power equipment are also arranged on the outer side of the cart body.

Description

There is the nuclear station power equipment transfer cart of LED illumination facility
technical field:
The present invention relates to a kind of nuclear station matching product, especially relate to a kind of nuclear station power equipment transfer cart with LED illumination facility, belong to the technical field of nuclear station maintenance equipment.
background technology:
Nuclear station is high-risk, high-accuracy Workplace, for support equipment smooth running and support equipment safety, needs frequently to safeguard equipment, now, because equipment replacement parts are often more, then need transfer cart to transport the parts of replacing, or new parts to be replaced.
Nuclear station is because precise part is to light sensitive, for ensureing its stability, some local light intensity is often not strong, now carry parts, often easily collide because illuminating position is not good, slip, and due to nuclear power generating equipment whole height reason, often need to drag transfer cart stair activity, and common transfer cart stair activity is very inconvenience.
Also have, power equipment transfer cart of the prior art, due to height of the carbody, is easily knocked to pin sometimes, easily injured, simultaneously due to this reason, its bottom construction insufficient strength, long-time use is easily fallen apart, and the steel mesh structure that sidewall uses, both material was wasted, raise the cost, the power equipment of the splendid attire in it of easily wearing and tearing again, and power equipment is sticked on sidewall not easily take out.
summary of the invention:
The technical problem to be solved in the present invention is: nuclear station power equipment transfer cart of the prior art, its car body is too low causes operation inconvenience easily to touch pin, simultaneously due to this reason, its bottom construction insufficient strength, long-time use is easily fallen apart, transfer cart of the prior art, its wheel is unsuitable for stair activity, be not suitable for nuclear station height high, the situation of many stair, and the steel mesh structure that sidewall uses, both material was wasted, raise the cost, easily wear and tear again the power equipment of splendid attire in it, and power equipment is sticked on sidewall not easily take out, simultaneously, because car body is too high, make picking and placeing of power equipment very inconvenient.
For solving the problems of the technologies described above, the invention provides a kind of novel nuclear station power equipment transfer cart with LED illumination facility, particular content is as follows:
A kind of nuclear station power equipment transfer cart with LED illumination facility, it is characterized in that: described nuclear station power equipment transfer cart has the car body for splendid attire power equipment, at least one sidewall of described car body has and can open structure, the below of described car body has roller, the front of described car body has LED illumination lamp, also has the hook that can hang electrical equipment outside described car body.
Preferably, described roller is cardan wheel.
Preferably, the bottom of described car body has the reinforcement increasing structural strength.
Preferably, there is between the base plate of described car body and ground the distance of at least 20 centimetres.
Preferably, described car body has four cramp bars of the vertical setting forming its framework, and be divided into two front support bars and two back supporting rods, the bottom of described strut bar is provided with described roller;
Described car body has base plate, four angles of described base plate are arranged on described four cramp bars by tight loop, between every two cramp bars, there are two reinforcements arranged in a crossed manner, described reinforcement one end is arranged on the bottom of cramp bar, the other end is arranged on adjacent strut bar, and is fixed on the side of described base plate in middle part;
The top of described cramp bar and middle part have the reinforcing pad of two rings around described four cramp bars respectively, described reinforcing pad is rigid construction, there is in described car body the packing bag that canvas is made, the outside dimension of described packing bag and the inside dimension of described car body adapt, described packing bag has multiple bags of anchor fittings, described packing bag is fixed on base plate, cramp bar and reinforcing pad;
One of them side of described packing bag, the position from top to reinforcing pad has for opening surface, on the cramp bar that the both sides of described opening surface are removably fixed on both sides and the bottom side of described opening surface is fixed on described reinforcing pad;
Described two front support rods have linkwork in base plate position, described linkwork makes the lower beam physical efficiency of described front support rod and only can the past direction turn down, the bottom of described front support bar and the reinforcement be connected between back supporting rod are for can folding structure, it is demountable structure at the fixed end at base plate place and back supporting rod place, and be linkwork in the bottom of front support bar, there is the first buckle of holding the described lower body of rod on described front support bar top and holds the bottom of described front support bar and the second buckle of the reinforcement be connected between back supporting rod.
Preferably, when stair activity by the bottom of the described lower body of rod and described front support bar and the reinforcement folding be connected between back supporting rod, the roller stair activity of back supporting rod bottom is only utilized.
Preferably, the described lower body of rod has the lower body of rod anchor fitting being fixed in vertical state.
Preferably, the roller of described front support bar bottom is front wheel, and the roller of described back supporting rod bottom is rear roller, and the diameter of described rear roller is between 15 centimetres to 25 centimetres, and the diameter of described rear roller is between 5 centimetres to 10 centimetres;
Described rear roller has interior wheel body and is arranged at the outer wheel body of interior wheel body outer rim, there is in the middle of described interior wheel body the axis hole of the wheel shaft through rear roller, described cover is cyclic structure, be enclosed within described interior wheel body outer rim, the cross section of described outer wheel body is U-shaped structure, its outer rim is closed and inner edge is the opening holding interior wheel body, the medial surface of described outer wheel body and the lateral surface of described interior wheel body fit tightly, and there is between the outer rim of the medial surface of the outer rim of described outer wheel body and described interior wheel body a circle rubber annular part, the thickness of described rubber annular part is between 1.5 centimetres to 2.5 centimetres.
Preferably, described rear roller comprises wheel disc, wheel slip ring; Both are concentric circles; Wheel disc is disk; Wheel slip ring is by two symmetrical annular arrangement side plates, the rigid body of an annular arrangement slide block composition; Annular arrangement side plate is projected as inside and outside two concentric circless; The projection of wheel slip ring is identical with the projection of annular arrangement side plate; Annular arrangement slide block is also two concentric circless, its outer circle diameter is equal with the outside diameter of annular arrangement side plate, in it, circle diameter is more bigger than the diameter of wheel disc, the segmental arc length making the inner headed face of annular arrangement slide block contact with the disc of wheel disc is like this shorter, thus reduce friction, and the radius of wheel disc is greater than the inner circle radius of annular arrangement side plate, guarantees that wheel slip ring sleeve is on wheel disc, make the annular arrangement side plate of wheel slip ring be subject to wheel disc constraint, play the effect of guiding; The thickness of annular arrangement slide block is slightly larger than the thickness of wheel disc corresponding position; Annular arrangement slide block is connected between two annular arrangement side plates, and form wheel slip ring rigid body, arbitrary radial section of wheel slip ring is " U " shape, and the base of " U " shape is annular arrangement slide block, and two sides are two annular arrangement side plates, form a circular groove; Wheel slip ring sleeve is on wheel disc, and part wheel disc is positioned at circular groove, and the inner circle of annular arrangement slide block and wheel disc circle is suitable, and it is suitable to take turns the inner side of two annular arrangement side plates and the two sides of wheel disc on slip ring.
Beneficial effect of the present invention is: the nuclear station power equipment transfer cart with LED illumination facility of the present invention, distance between its base plate and ground makes can not gouge user, and its base plate utilizes reinforcement to strengthen, and the packing bag structure of canvas had both reduced costs, power equipment can not be damaged again, and one steamboat, the structure of one bull wheel makes when stair activity can folding steamboat and use bull wheel stair activity, and the setting of an opening surface also makes it possible to timely opening after taking-up part power equipment, is convenient to the power equipment taking out other.
accompanying drawing explanation:
Accompanying drawing 1 is the schematic diagram with the nuclear station power equipment transfer cart of LED illumination facility provided by the present invention.
Accompanying drawing 2 is the schematic diagram with another embodiment of the nuclear station power equipment transfer cart of LED illumination facility provided by the present invention.
Accompanying drawing 3 is the schematic diagram with the rear roller of the nuclear station power equipment transfer cart of LED illumination facility provided by the present invention.
detailed description of the invention:
Below in conjunction with accompanying drawing, a kind of nuclear station power equipment transfer cart with LED illumination facility provided by the present invention is further described.
As Figure 1-3, a kind of nuclear station power equipment transfer cart with LED illumination facility, it is characterized in that: described in there is LED illumination facility nuclear station power equipment transfer cart there is car body for splendid attire power equipment, at least one sidewall of described car body has can Unclosing structure, the below of described car body has roller,, there is between the base plate of described car body and ground the distance of at least 20 centimetres; Described car body has four cramp bars 1 of the vertical setting forming its framework, and be divided into two front support bars and two back supporting rods, the bottom of described strut bar 1 is provided with described roller 3;
Described car body has base plate 2, four angles of described base plate 2 are arranged on described four cramp bars 1 by tight loop, between every two cramp bars, there are two reinforcements 4 arranged in a crossed manner, described reinforcement 4 one end is arranged on the bottom of cramp bar 1, the other end is arranged on adjacent strut bar 1, and is fixed on the side of described base plate 2 in middle part;
The top of described cramp bar 1 and middle part have the reinforcing pad 5 of two rings around described four cramp bars respectively, described reinforcing pad 5 is rigid construction, there is in described car body the packing bag that canvas is made, the outside dimension of described packing bag and the inside dimension of described car body adapt, described packing bag has multiple bags of anchor fittings, described packing bag is fixed on base plate 2, cramp bar 1 and reinforcing pad 5;
One of them side of described packing bag, from top to reinforcing pad, the position of 5 has for opening surface, on the cramp bar 1 that the both sides of described opening surface are removably fixed on both sides and the bottom side of described opening surface is fixed on described reinforcing pad 5;
Described two front support rods have linkwork in base plate 2 position, described linkwork makes the lower beam physical efficiency of described front support rod and only can the past direction turn down, the bottom of described front support bar and the reinforcement 4 that is connected between back supporting rod are for can folding structure, it is demountable structure at the fixed end at base plate place and back supporting rod place, and be linkwork in the bottom of front support bar, there is the first buckle of holding the described lower body of rod on described front support bar top and holds the bottom of described front support bar and the second buckle of the reinforcement be connected between back supporting rod.
The roller of described front support bar bottom is front wheel 39, and the roller of described back supporting rod bottom is rear roller 38, and the diameter of described rear roller 38 is between 15 centimetres to 25 centimetres, and the diameter of described rear roller 38 is between 5 centimetres to 10 centimetres.
Described rear roller comprises wheel disc 31, wheel slip ring 32; Both are concentric circles; Wheel disc 31 is disk; Wheel slip ring 32 is by the rigid body of two symmetrical annular arrangement side plate 33, annular arrangement slide block 34 compositions; Annular arrangement side plate 33 is projected as inside and outside two concentric circless; The projection of wheel slip ring 32 is identical with the projection of annular arrangement side plate 33; Annular arrangement slide block (34) is also two concentric circless, and its outer circle diameter is equal with the outside diameter of annular arrangement side plate 33, and in it, circle diameter is more bigger than the diameter of wheel disc 31, and the radius of wheel disc 31 is greater than the inner circle radius of annular arrangement side plate 33; The thickness of annular arrangement slide block 34 is slightly larger than the thickness of wheel disc 31 corresponding position; Annular arrangement slide block 34 is connected between two annular arrangement side plates 33, forms wheel slip ring 32 rigid body; Arbitrary radial section of wheel slip ring 32 is " U " shape, and the base of " U " shape be annular arrangement slide block 34, two sides is two annular arrangement side plates 33, forms a circular groove; Wheel slip ring 32 is enclosed within wheel disc 31, and part wheel disc 31 is positioned at circular groove, and the inner circle of annular arrangement slide block 34 and wheel disc 31 circle is suitable, and it is suitable to take turns the inner side of two annular arrangement side plates 33 and the two sides of wheel disc 31 on slip ring 32; Wheel slip ring 32 and wheel disc 31 can relatively do suitable, rotate counterclockwise.

Claims (8)

1. one kind has the nuclear station power equipment transfer cart of LED illumination facility, it is characterized in that: described nuclear station power equipment transfer cart has the car body for splendid attire power equipment, at least one sidewall of described car body has and can open structure, the below of described car body has roller, the front of described car body has LED illumination lamp, also has the hook that can hang electrical equipment outside described car body.
2. there is the nuclear station power equipment transfer cart of LED illumination facility as claimed in claim 1, it is characterized in that: described roller is cardan wheel.
3. there is the nuclear station power equipment transfer cart of LED illumination facility as claimed in claim 1, it is characterized in that: the bottom of described car body has the reinforcement increasing structural strength.
4. there is the nuclear station power equipment transfer cart of LED illumination facility as claimed in claim 1, it is characterized in that: the distance between the base plate of described car body and ground with at least 20 centimetres.
5. there is the nuclear station power equipment transfer cart of LED illumination facility as claimed in claim 1, it is characterized in that: described car body has four cramp bars of the vertical setting forming its framework, be divided into two front support bars and two back supporting rods, the bottom of described strut bar is provided with described roller;
Described car body has base plate, four angles of described base plate are arranged on described four cramp bars by tight loop, between every two cramp bars, there are two reinforcements arranged in a crossed manner, described reinforcement one end is arranged on the bottom of cramp bar, the other end is arranged on adjacent strut bar, and is fixed on the side of described base plate in middle part;
The top of described cramp bar and middle part have the reinforcing pad of two rings around described four cramp bars respectively, described reinforcing pad is rigid construction, there is in described car body the packing bag that canvas is made, the outside dimension of described packing bag and the inside dimension of described car body adapt, described packing bag has multiple bags of anchor fittings, described packing bag is fixed on base plate, cramp bar and reinforcing pad;
One of them side of described packing bag, the position from top to reinforcing pad has for opening surface, on the cramp bar that the both sides of described opening surface are removably fixed on both sides and the bottom side of described opening surface is fixed on described reinforcing pad;
Described two front support rods have linkwork in base plate position, described linkwork makes the lower beam physical efficiency of described front support rod and only can the past direction turn down, the bottom of described front support bar and the reinforcement be connected between back supporting rod are for can folding structure, it is demountable structure at the fixed end at base plate place and back supporting rod place, and be linkwork in the bottom of front support bar, there is the first buckle of holding the described lower body of rod on described front support bar top and holds the bottom of described front support bar and the second buckle of the reinforcement be connected between back supporting rod.
6. there is the nuclear station power equipment transfer cart of LED illumination facility as claimed in claim 5, it is characterized in that: the roller of described front support bar bottom is front wheel, the roller of described back supporting rod bottom is rear roller, the diameter of described rear roller is between 15 centimetres to 25 centimetres, and the diameter of described rear roller is between 5 centimetres to 10 centimetres;
Described rear roller has interior wheel body and is arranged at the outer wheel body of interior wheel body outer rim, there is in the middle of described interior wheel body the axis hole of the wheel shaft through rear roller, described cover is cyclic structure, be enclosed within described interior wheel body outer rim, the cross section of described outer wheel body is U-shaped structure, its outer rim is closed and inner edge is the opening holding interior wheel body, the medial surface of described outer wheel body and the lateral surface of described interior wheel body fit tightly, and there is between the outer rim of the medial surface of the outer rim of described outer wheel body and described interior wheel body a circle rubber annular part, the thickness of described rubber annular part is between 1.5 centimetres to 2.5 centimetres.
7. there is the nuclear station power equipment transfer cart of LED illumination facility as claimed in claim 5, it is characterized in that: when stair activity by the bottom of the described lower body of rod and described front support bar and the reinforcement folding be connected between back supporting rod, only utilize the roller stair activity of back supporting rod bottom.
8. there is the nuclear station power equipment transfer cart of LED illumination facility as claimed in claim 5, it is characterized in that: the described lower body of rod has the lower body of rod anchor fitting being fixed in vertical state.
CN201510602774.6A 2015-09-21 2015-09-21 Nuclear power station power equipment transfer cart with LED illumination facility Expired - Fee Related CN105197075B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201810570752.XA CN108860236A (en) 2015-09-21 2015-09-21 A kind of power equipment transfer cart
CN201510602774.6A CN105197075B (en) 2015-09-21 2015-09-21 Nuclear power station power equipment transfer cart with LED illumination facility
CN201810571117.3A CN108706022A (en) 2015-09-21 2015-09-21 A kind of power equipment transfer cart with LED illumination facility

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510602774.6A CN105197075B (en) 2015-09-21 2015-09-21 Nuclear power station power equipment transfer cart with LED illumination facility

Related Child Applications (2)

Application Number Title Priority Date Filing Date
CN201810570752.XA Division CN108860236A (en) 2015-09-21 2015-09-21 A kind of power equipment transfer cart
CN201810571117.3A Division CN108706022A (en) 2015-09-21 2015-09-21 A kind of power equipment transfer cart with LED illumination facility

Publications (2)

Publication Number Publication Date
CN105197075A true CN105197075A (en) 2015-12-30
CN105197075B CN105197075B (en) 2019-01-25

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CN201810570752.XA Withdrawn CN108860236A (en) 2015-09-21 2015-09-21 A kind of power equipment transfer cart
CN201810571117.3A Pending CN108706022A (en) 2015-09-21 2015-09-21 A kind of power equipment transfer cart with LED illumination facility
CN201510602774.6A Expired - Fee Related CN105197075B (en) 2015-09-21 2015-09-21 Nuclear power station power equipment transfer cart with LED illumination facility

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CN201810570752.XA Withdrawn CN108860236A (en) 2015-09-21 2015-09-21 A kind of power equipment transfer cart
CN201810571117.3A Pending CN108706022A (en) 2015-09-21 2015-09-21 A kind of power equipment transfer cart with LED illumination facility

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2033374U (en) * 1988-05-02 1989-03-01 余锡福 Fold-type high frame handcart
US20110204598A1 (en) * 2010-02-24 2011-08-25 Mark Stevenson Folding Wagon
US8162349B1 (en) * 2008-12-18 2012-04-24 Roselle Michael J Collapsible carrier
CN202911460U (en) * 2012-11-02 2013-05-01 正安扣具(深圳)有限公司 Universal wheel
CN203111225U (en) * 2012-12-28 2013-08-07 张明赛 Multifunctional handcart

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103802597A (en) * 2014-03-11 2014-05-21 张和平 Explosion-proof rim, explosion-proof tire and explosion-proof rim and tire assembly
CN203864742U (en) * 2014-04-03 2014-10-08 浙江理工大学 Novel multi-purpose power-driven loading stair climbing vehicle
CN204020396U (en) * 2014-04-04 2014-12-17 上海钧睿国际贸易有限公司 Kickboard Scooter and wheel construction thereof
CN104608807A (en) * 2015-01-27 2015-05-13 天长市正牧铝业科技有限公司 Transfer cart for sports goods
CN204450493U (en) * 2015-03-10 2015-07-08 李奕 A kind of multifunctional vehicle mounted tool box
CN204472844U (en) * 2015-03-17 2015-07-15 湖南城市学院 A kind of personal file transport carriage
CN204623509U (en) * 2015-04-29 2015-09-09 国家电网公司 A kind of instrument pusher
CN105253176A (en) * 2015-09-21 2016-01-20 程淑芳 Physical education equipment transportation apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2033374U (en) * 1988-05-02 1989-03-01 余锡福 Fold-type high frame handcart
US8162349B1 (en) * 2008-12-18 2012-04-24 Roselle Michael J Collapsible carrier
US20110204598A1 (en) * 2010-02-24 2011-08-25 Mark Stevenson Folding Wagon
CN202911460U (en) * 2012-11-02 2013-05-01 正安扣具(深圳)有限公司 Universal wheel
CN203111225U (en) * 2012-12-28 2013-08-07 张明赛 Multifunctional handcart

Also Published As

Publication number Publication date
CN105197075B (en) 2019-01-25
CN108706022A (en) 2018-10-26
CN108860236A (en) 2018-11-23

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SE01 Entry into force of request for substantive examination
CB03 Change of inventor or designer information

Inventor after: Han Hong

Inventor after: Geng Yunhua

Inventor before: Geng Yunhua

CB03 Change of inventor or designer information
TA01 Transfer of patent application right

Effective date of registration: 20181210

Address after: 100069 East Asia 3rd Ring Building 1219, 36 Majiabao West Road, Fengtai District, Beijing

Applicant after: Han Hong

Address before: 262700 Jingjiazhai Village, Liyuan Street, Pingdu City, Qingdao City, Shandong Province

Applicant before: Geng Yunhua

TA01 Transfer of patent application right
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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20190125

Termination date: 20190921

CF01 Termination of patent right due to non-payment of annual fee