CN204401591U - For the folding guardrail of screw pump discharge opeing well-mouth operating floor - Google Patents

For the folding guardrail of screw pump discharge opeing well-mouth operating floor Download PDF

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Publication number
CN204401591U
CN204401591U CN201420745013.7U CN201420745013U CN204401591U CN 204401591 U CN204401591 U CN 204401591U CN 201420745013 U CN201420745013 U CN 201420745013U CN 204401591 U CN204401591 U CN 204401591U
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China
Prior art keywords
plate
location
railing
connector
fence unit
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CN201420745013.7U
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Chinese (zh)
Inventor
关利军
李纪智
任金山
杨少坤
代一丁
李建周
何泽俊
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China National Offshore Oil Corp CNOOC
CNOOC Deepwater Development Ltd
CNOOC China Ltd Shenzhen Branch
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China National Offshore Oil Corp CNOOC
CNOOC Deepwater Development Ltd
CNOOC China Ltd Shenzhen Branch
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Application filed by China National Offshore Oil Corp CNOOC, CNOOC Deepwater Development Ltd, CNOOC China Ltd Shenzhen Branch filed Critical China National Offshore Oil Corp CNOOC
Priority to CN201420745013.7U priority Critical patent/CN204401591U/en
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Abstract

The utility model discloses a kind of folding guardrail for screw pump discharge opeing well-mouth operating floor, comprise the fence unit be arranged on operating desk side, also comprise corresponding fence unit and be fixedly mounted on base on operating desk, fence unit is rotatably connected on base, makes the relative operating desk of fence unit can carry out back rotation between a primary importance and a second place; In primary importance, the vertical vertically-arranged of fence unit is on operating desk; In the second place, fence unit lies on operating desk.The utility model is by being rotatably connected fence unit and base, realizing guardrail may be folded on operating desk, lift on operating desk during without the need to installing screw pump operating desk on floating drilling platform at every turn, dismantle guardrail, thus improve operating efficiency, save the activity duration, reduce operating risk.

Description

For the folding guardrail of screw pump discharge opeing well-mouth operating floor
Technical field
The utility model relates to offshore oilfield discharge opeing technical field, particularly relates to a kind of folding guardrail for screw pump discharge opeing well-mouth operating floor.
Background technology
When offshore floating drilling platform carries out screw pump discharge opeing, need to use floating drilling platform screw pump discharge opeing well-mouth operating floor to realize discharge opeing.Because well-mouth operating floor is higher from drilling floor surface; and along with the heave of floating drilling platform; distance between drilling floor surface and well-mouth operating floor is in continuous change; for protection stand on the safety of the staff on well-mouth operating floor table top; the guardrail in well-mouth operating floor arranged outside; as one of the important safety measure of ascend operation, for guaranteeing the safety of relevant staff.
The guardrail of existing well-mouth operating floor is plug-in type guardrail, namely after well-mouth operating floor installs, is arranged on well-mouth operating floor by guardrail successively.After well-mouth operating floor use terminates, then guardrail is pulled down from well-mouth operating floor, winch to deck plane, put into specific tool box and deposit, transport.Like this, make each installation, dismounting all needs to spend the more time, and carry out in high-altitude installing, dismantle guardrail and there is certain potential safety hazard.
Utility model content
The technical problems to be solved in the utility model is, does not need the folding guardrail for screw pump discharge opeing well-mouth operating floor dismantling, save disassembly and assembly time after providing a kind of use.
The utility model solves the technical scheme that its technical problem adopts: provide a kind of folding guardrail for screw pump discharge opeing well-mouth operating floor, comprise the fence unit be arranged on operating desk side, it is characterized in that, also comprise corresponding described fence unit and be fixedly mounted on base on described operating desk, described fence unit is rotatably connected on described base, makes the relatively described operating desk of described fence unit can carry out back rotation between a primary importance and a second place;
In described primary importance, the vertical vertically-arranged of described fence unit is on described operating desk; In the described second place, described fence unit lies on described operating desk.
Preferably, described fence unit comprises railing and at least one horizontal bar be connected between two described railing upper ends at least two intervals, and the lower end of described railing is rotatably connected with described base respectively.
Preferably, described base comprises corresponding described railing and is vertically mounted on location-plate on described operating desk and connector; Described connector comprises first connector, and the lower end of described railing is connected with described location-plate by described first connector, described fence unit with described first connector for pivot center carrys out back rotation between described primary importance and the second place.
Preferably, the lower end of described railing and described location-plate are provided with the connecting hole that the described connector of corresponding confession wears;
Described first connector is screw rod, bolt or connecting axle, and described connecting hole is screw or through hole.
Preferably, described location-plate comprises one first location-plate, and the lower end of described railing is positioned at the side of described first location-plate, and described first connector is transverse on described first location-plate and described railing lower end; Or,
Described location-plate comprises the first relative location-plate of interval and the second location-plate, and the lower end of described railing is between described first location-plate and the second location-plate, and described first connector is transverse on described first location-plate, railing lower end and the second location-plate.
Preferably, described connector also comprises at least one second connector, the first connector described in described second connector interval, on the lower end being transverse in described railing and described location-plate, by spacing for described fence unit in described primary importance;
Described second connector is screw rod, bolt or connecting axle.
Preferably, described base also comprises the base plate be fixedly mounted on described operating desk, and described location-plate is vertically connected on described base plate.
Preferably, described base comprise be vertically mounted on confession described railing lower end on described operating desk and connect location-plate, by spacing for the described fence unit junction plate in described primary importance and by spacing for the described fence unit connector in the described second place; In described primary importance, on the lower end that described junction plate is located in described railing and described location-plate; In the described second place, on the lower end that described connector is located in described railing and described location-plate;
The lower end of described railing and described location-plate are provided with the connecting hole that the described junction plate of corresponding confession or connector wear; Described connecting hole shape and the corresponding setting of described junction plate shape, the size of described connector is less than described junction plate.
Preferably, described base also comprises the latch for preventing described junction plate from deviating from described location-plate and railing lower end, and described latch is plugged on the one or both ends that described junction plate is positioned at outside described location-plate and railing lower end.
Preferably, described base comprises the hinged seat that is fixedly mounted on described operating desk and is connected to described hinged seat towards the baffle plate on the outer side of described operating desk, the lower end of described railing is hinged on described hinged seat by rotating shaft, described fence unit with described rotating shaft for pivot center carrys out back rotation between described primary importance and the second place; In described primary importance, described baffle plate abuts with described railing lower end, limits described fence unit and rotates outside described operating desk.
Folding guardrail of the present utility model, uses on the screw pump discharge opeing well-mouth operating floor of offshore floating drilling platform, by being rotatably connected fence unit and base, realizing guardrail and may be folded on operating desk; During use, fence unit respect thereto is rotated and stands upright on operating desk, after finishing using, fence unit respect thereto rotated and lie on operating desk, lift on operating desk during without the need to installing screw pump operating desk on floating drilling platform at every turn, dismantle guardrail, thus improve operating efficiency, save the activity duration, reduce operating risk.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the structural representation of the folding guardrail of the utility model first embodiment;
Fig. 2 is the side structure schematic diagram after a mode of folding guardrail shown in Fig. 1 folds;
Fig. 3 is the side structure schematic diagram after the another way of folding guardrail shown in Fig. 1 folds;
Fig. 4 is the structural representation of the folding guardrail of the utility model second embodiment;
Fig. 5 is the structural representation of the folding guardrail of the utility model the 3rd embodiment;
Fig. 6 is the side structure schematic diagram after folding guardrail shown in Fig. 5 folds;
Fig. 7 is the structural representation of the folding guardrail of the utility model the 4th embodiment;
Fig. 8 is the side structure schematic diagram of folding guardrail shown in Fig. 7;
Fig. 9 is the structural representation after folding guardrail shown in Fig. 8 folds.
Detailed description of the invention
In order to there be understanding clearly to technical characteristic of the present utility model, object and effect, now contrast accompanying drawing and describe detailed description of the invention of the present utility model in detail.
As shown in Figure 1, the folding guardrail of the utility model first embodiment, for the screw pump discharge opeing well-mouth operating floor 100 of offshore floating drilling platform.This folding guardrail comprises and is arranged on fence unit 10 on operating desk 100 side and corresponding fence unit 10 and is fixedly mounted on base 20 on operating desk 100, fence unit 10 is rotatably connected on base 20, makes the relative operating desk 100 of fence unit 10 can carry out back rotation between a primary importance and a second place.In primary importance, the vertical vertically-arranged of fence unit 10 on operating desk 100, as shown in Figure 1; In the second place, fence unit 10 lies on operating desk 100, as shown in Figure 2.On the side that fence unit 10 is arranged on operating desk 100 as required or multiple side, also can install one or more according to each side edge length demand of operating desk 100.
Wherein, fence unit 10 comprises railing 11 and at least one horizontal bar 12 be connected between two railing 11 upper ends at least two intervals, and the lower end of railing 11 is rotatably connected with base 20 respectively.In addition, according to guardrail appearance design needs, also can connect many longitudinal directions or oblique connecting rod between horizontal bar 12, can be formed latticed etc. between many connecting rods and horizontal bar 12.
Base 20 comprises corresponding railing 11 and is vertically mounted on location-plate on operating desk 100 and connector.Connector comprises first connector 21, and the lower end of railing 11 is connected with location-plate by the first connector 21, and fence unit 10 carrys out back rotation with the first connector 21 between the first position and the second position for pivot center.In fence unit 10, be preferably placed in two railings 11 in outside, the corresponding base 20 of each railing, can firmly be arranged on operating desk 100 to make fence unit.According to fence unit 10 entire length, its railing 11 also can three or more, and base 20 can be provided with two, three or more.
In the present embodiment, location-plate comprises one first location-plate 22, and the lower end of railing 11 is positioned at the side of the first location-plate 22, and the first connector 21 is transverse on the first location-plate 22 and railing 11 lower end.
The lower end of railing 11 and the first location-plate 22 are provided with the corresponding connecting hole (not shown) worn for connector, and the first connector 21 is transverse on railing 11 lower end and the first location-plate 22.This first connector 21 can be screw rod or bolt, and connecting hole corresponds to screw, thus the first connector 21 is screwed onto on railing 11 lower end and the first location-plate 22, like this can by spacing for fence unit 10 in primary importance.When railing 11 being rotated with folds flat on operating desk 100, the first connector 21 can be unloaded on connecting hole, again the first connector 21 being worn in connecting hole after fence unit 10 is kept flat, by spacing for fence unit 10 in the second place.This first connector 21 also can be connecting axle, and connecting hole is through hole, thus fence unit 10 take connecting axle as pivot center rotates relative to the first location-plate 22 and be in primary importance or the second place.
In the present embodiment, connector also comprises at least one second connector 23, second connector 23 interval first connector 21, on the lower end being transverse in railing 11 and the first location-plate 22, by spacing for fence unit 10 in primary importance.Wherein, the first connector 21 is coordinated by the second connector 23, make, between railing 11 lower end and the first location-plate 22, there are at least two tie points, thus strengthen the connective stability when primary importance between railing 11 and location-plate, avoid fence unit 10 to turn folding voluntarily.Second connector 23 is screw rod, bolt or connecting axle.Second connector 23 preferably along railing 11 longitudinal direction and the first connector 21 interval, namely and the first connector 21 be upper and lower interval.
Accordingly, on the lower end of railing 11 and the first location-plate 22, the connecting hole of corresponding setting is respectively multiple, and wherein the connecting hole of a correspondence wears for the first connector 21, and other can wear for the second connector 23.First connector 21 is not limited to be located in a specific connecting hole, and it can be located in the connecting hole of correspondence position according to the link position of fence unit.Understandably, also can further sheathed nut on the end after the first connector 21, second connector 23 passes connecting hole, avoid the first connector 21, second connector 23 to deviate from lower end and the location-plate of railing 11 voluntarily.
Further, base 20 also comprises base plate 25, first location-plate 22 be fixedly mounted on operating desk 100 and is vertically connected on base plate 25.Below fence unit 10, it is an entirety that the base plate 25 between multiple base 20 can connect.When fence unit 10 is in primary importance, the end face of railing 11 lower end can abut with base plate 25 or operating desk 100 table top, also can be unsettled on base plate 25 or 100, operating desk.The end face of railing 11 lower end also can be set to cambered surface, reduces friction when rotating.
With reference to figure 2, when fence unit 10 turns to the second place from primary importance, operation can be as follows: pulled down from railing 11 lower end and the first location-plate 22 by the second connector 23, retain the first connector 21; Be pivot center respect thereto 20 by fence unit 10 with the first connector 21 to rotate to operating desk 100 direction, so that keep flat on operating desk 100.This operation is preferably applicable to the unsettled situation on base plate 25 or 100, operating desk of end face of railing 11 lower end.When fence unit 10 is turned to primary importance from the second place, according to aforesaid operations anti-carry out.
With reference to figure 3, when fence unit 10 turns to the second place from primary importance, operation also can be as follows: the first connector 21 and the second connector 23 are pulled down from railing 11 lower end and the first location-plate 22 respectively, first up being carried by fence unit 10 makes the end face of railing 11 lower end leave on base plate 25 or 100, operating desk, then is worn by the first connector 21 on railing 11 lower end and the first location-plate 22; Be pivot center respect thereto 20 by fence unit 10 with the first connector 21 to rotate to operating desk 100 direction, so that keep flat on operating desk 100.When fence unit 10 is turned to primary importance from the second place, according to aforesaid operations anti-carry out.
As shown in Figure 4, the folding guardrail of the utility model second embodiment, for offshore floating drilling platform screw pump discharge opeing well-mouth operating floor 100, the folding guardrail of this second embodiment is compared to the folding guardrail of the first embodiment, the location-plate of its base 20 comprises the first relative location-plate 22 and the second location-plate 24 of interval, the lower end of railing 11 is between the first location-plate 22 and the second location-plate 24, and the first connector is transverse on the first location-plate 22, railing 11 lower end and the second location-plate 24.The setting of two location-plates, improves the connective stability of railing 11 and base 20 further.First location-plate 22, railing 11 lower end and the second location-plate 24 are provided with corresponding connecting hole and wear for the first connector.
In the present embodiment, connector can comprise one first connector 21, or one first connector 21 and at least one second connector 23, and concrete mode can refer to described in the folding guardrail of above-mentioned first embodiment.Connecting hole on first location-plate 22, railing 11 lower end and the second location-plate 24 can be respectively multiple, and wherein the connecting hole of a correspondence wears for the first connector 21, and other can wear for the second connector 23.First connector 21 is not limited to be located in a specific connecting hole, and it can be located in the connecting hole of correspondence position according to the link position of fence unit.The folding guardrail rotating operation between the first position and the second position of this embodiment, to can refer in above-described embodiment described in Fig. 2, Fig. 3 and corresponding content equally.
As shown in Figure 5, the folding guardrail of the utility model the 3rd embodiment, for offshore floating drilling platform screw pump discharge opeing well-mouth operating floor 100, this folding guardrail comprises and is arranged on fence unit 10 on operating desk 100 side and corresponding fence unit 10 and is fixedly mounted on base 30 on operating desk 100, fence unit 10 is rotatably connected on base 30, makes the relative operating desk 100 of fence unit 10 can carry out back rotation between a primary importance and a second place.In primary importance, the vertical vertically-arranged of fence unit 10 on operating desk 100, as shown in Figure 5; In the second place, fence unit 10 lies on operating desk 100, as shown in Figure 6.On the side that fence unit 10 is arranged on operating desk 100 as required or multiple side, also can install one or more according to each side edge length demand of operating desk 100.
Wherein, fence unit 10 comprises railing 11 and at least one horizontal bar 12 be connected between two railing 11 upper ends at least two intervals, and the lower end of railing 11 is rotatably connected with base respectively.In addition, according to guardrail appearance design needs, also can connect many longitudinal directions or oblique connecting rod between horizontal bar 12, can be formed latticed etc. between many connecting rods and horizontal bar 12.
In the present embodiment, base 30 comprises the location-plate for the connection of railing 11 lower end be vertically mounted on operating desk 100, by spacing for fence unit 10 junction plate 33 in primary importance and by spacing for fence unit 10 connector 34 in the second place.In primary importance, on the lower end that junction plate 33 is located in railing 11 and location-plate; In the second place, on the lower end that connector 34 is located in railing 11 and location-plate.
The lower end of railing 11 and location-plate are provided with corresponding connecting hole (not shown), wear for junction plate 33 or connector 34.Connecting hole shape and the corresponding setting of junction plate 33 shape, be located in connecting hole by junction plate 33 and be fixedly connected with location-plate by railing 11.For the junction plate 33 of rectangle, connecting hole is rectangular opening.The size of connector 34 is less than junction plate 33, for being located in connecting hole, avoids railing 11 lower end to be separated from from location-plate.This connector 34 can be bolt, screw rod or other strip rod members.
Further, for preventing junction plate 33 from voluntarily self-align plate and railing 11 lower end being deviate from, base 30 also comprises latch 35.Latch 35 is plugged on the one or both ends that junction plate 33 is positioned at outside location-plate and railing 11 lower end.
As shown in Figure 5, in the present embodiment, location-plate comprises the first relative location-plate 31 and the second location-plate 32 of interval, and railing 11 lower end extend between this first location-plate 31 and second location-plate 32.In other embodiments, location-plate also can only include the first location-plate 31, and the lower end of railing 11 is positioned at the side of the first location-plate 31.Base 30 also comprises and is fixedly mounted on base plate 36, first location-plate 31 on operating desk 100 and the second location-plate 32 is vertically connected on base plate 36.
With reference to figure 5,6, when fence unit 10 is turned to the second place from primary importance, junction plate 33 is pulled down from railing 11 lower end and location-plate (comprising the first location-plate 31 and the second location-plate 32), connector 34 is worn in the connecting hole of railing 11 lower end and location-plate; Just fence unit 10 is that pivot center respect thereto 30 rotates to operating desk 100 direction, so that keep flat on operating desk 100 with connector 34 again.When fence unit 10 is in primary importance, the end face of railing 11 lower end can abut with the base plate 36 of base 30 or operating desk 100 table top, also can be unsettled on base plate 36 or 100, operating desk.When the end face of railing 11 lower end abuts with base plate 36 or operating desk 100 table top, when fence unit 10 rotates to operating desk 100 direction can first by fence unit 10 slightly on carry, make the end face of railing 11 lower end leave base plate 36 or operating desk 100 table top rotates again.The end face of railing 11 lower end also can be set to cambered surface, reduces friction when rotating.
As Figure 7-9, the folding guardrail of the utility model the 4th embodiment, for offshore floating drilling platform screw pump discharge opeing well-mouth operating floor 100, this folding guardrail comprises and is arranged on fence unit 10 on operating desk 100 side and corresponding fence unit 10 and is fixedly mounted on base 40 on operating desk 100, fence unit 10 is rotatably connected on the base 40 it, makes the relative operating desk 100 of fence unit 10 can carry out back rotation between a primary importance and a second place.In primary importance, the vertical vertically-arranged of fence unit 10 on operating desk 100, as shown in Figure 7,8; In the second place, fence unit 10 lies on operating desk 100, as shown in Figure 9.On the side that fence unit 10 is arranged on operating desk 100 as required or multiple side, also can install one or more according to each side edge length demand of operating desk 100.
Wherein, fence unit 10 comprises railing 11 and at least one horizontal bar 12 be connected between two railing 11 upper ends at least two intervals, and the lower end of railing 11 is rotatably connected with base respectively.In addition, according to guardrail appearance design needs, also can connect many longitudinal directions or oblique connecting rod between horizontal bar 12, can be formed latticed etc. between many connecting rods and horizontal bar 12.
In the present embodiment, base 40 comprises the hinged seat 41 that is fixedly mounted on operating desk 100 and is connected to hinged seat 41 towards the baffle plate 42 on the outer side of operating desk 100, the lower end of railing 11 is hinged on hinged seat 41 by rotating shaft 43, and fence unit 10 carrys out back rotation with rotating shaft 43 between the first position and the second position for pivot center.In primary importance, baffle plate 42 abuts with railing 11 lower end, and restriction fence unit 10 rotates outside operating desk 100.When abutting baffle plate 42 in railing 11 lower end, the angle between fence unit 10 and operating desk 100 is 90 ° or is a bit larger tham 90 °, guarantees that fence unit 10 is erected on operating desk 100 when primary importance, plays guardrail effect.Preferably, baffle plate 42 interval fence unit 10 is arranged, make fence unit 10 when primary importance abuts with baffle plate 42, the angle between fence unit 10 and operating desk 100 is a bit larger tham 90 ° (as 90 °-100 °), avoids fence unit 10 to rotate inside operating desk 100 voluntarily.
With reference to figure 8,9, when fence unit 10 turns to the second place from primary importance, be pivot center respect thereto 40 by fence unit 10 with rotating shaft 43 to rotate, so that keep flat on operating desk 100 to direction (direction away from baffle plate 42) inside operating desk 100.When fence unit 10 turns to primary importance from the second place, just fence unit 10 is that pivot center rotates, so that be erected on operating desk 100 to operating desk 100 lateral direction (direction near baffle plate 42) with rotating shaft 43.Preferably, when fence unit 10 is in primary importance, the end face of railing 11 lower end is unsettled on hinged seat 41 bottom surface or 100, operating desk, the friction of railing 11 lower end surface and hinged seat 41 bottom surface or 100, operating desk when avoiding fence unit 10 to rotate.Or the end face of railing 11 lower end is set to cambered surface, reduce friction when rotating.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model manual and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.

Claims (10)

1. the folding guardrail for screw pump discharge opeing well-mouth operating floor, comprise the fence unit be arranged on operating desk side, it is characterized in that, also comprise corresponding described fence unit and be fixedly mounted on base on described operating desk, described fence unit is rotatably connected on described base, makes the relatively described operating desk of described fence unit can carry out back rotation between a primary importance and a second place;
In described primary importance, the vertical vertically-arranged of described fence unit is on described operating desk; In the described second place, described fence unit lies on described operating desk.
2. folding guardrail according to claim 1, it is characterized in that, described fence unit comprises railing and at least one horizontal bar be connected between two described railing upper ends at least two intervals, and the lower end of described railing is rotatably connected with described base respectively.
3. folding guardrail according to claim 2, is characterized in that, described base comprises corresponding described railing and is vertically mounted on location-plate on described operating desk and connector; Described connector comprises first connector, and the lower end of described railing is connected with described location-plate by described first connector, described fence unit with described first connector for pivot center carrys out back rotation between described primary importance and the second place.
4. folding guardrail according to claim 3, is characterized in that, the lower end of described railing and described location-plate are provided with the connecting hole that the described connector of corresponding confession wears;
Described first connector is screw rod, bolt or connecting axle, and described connecting hole is screw or through hole.
5. folding guardrail according to claim 3, it is characterized in that, described location-plate comprises one first location-plate, and the lower end of described railing is positioned at the side of described first location-plate, and described first connector is transverse on described first location-plate and described railing lower end; Or,
Described location-plate comprises the first relative location-plate of interval and the second location-plate, and the lower end of described railing is between described first location-plate and the second location-plate, and described first connector is transverse on described first location-plate, railing lower end and the second location-plate.
6. folding guardrail according to claim 3, it is characterized in that, described connector also comprises at least one second connector, first connector described in described second connector interval, on the lower end being transverse in described railing and described location-plate, by spacing for described fence unit in described primary importance;
Described second connector is screw rod, bolt or connecting axle.
7. folding guardrail according to claim 3, is characterized in that, described base also comprises the base plate be fixedly mounted on described operating desk, and described location-plate is vertically connected on described base plate.
8. folding guardrail according to claim 2, it is characterized in that, described base comprise be vertically mounted on confession described railing lower end on described operating desk and connect location-plate, by spacing for the described fence unit junction plate in described primary importance and by spacing for the described fence unit connector in the described second place; In described primary importance, on the lower end that described junction plate is located in described railing and described location-plate; In the described second place, on the lower end that described connector is located in described railing and described location-plate;
The lower end of described railing and described location-plate are provided with the connecting hole that the described junction plate of corresponding confession or connector wear; Described connecting hole shape and the corresponding setting of described junction plate shape, the size of described connector is less than described junction plate.
9. folding guardrail according to claim 8, it is characterized in that, described base also comprises the latch for preventing described junction plate from deviating from described location-plate and railing lower end, and described latch is plugged on the one or both ends that described junction plate is positioned at outside described location-plate and railing lower end.
10. folding guardrail according to claim 2, it is characterized in that, described base comprises the hinged seat that is fixedly mounted on described operating desk and is connected to described hinged seat towards the baffle plate on the outer side of described operating desk, the lower end of described railing is hinged on described hinged seat by rotating shaft, described fence unit with described rotating shaft for pivot center carrys out back rotation between described primary importance and the second place; In described primary importance, described baffle plate abuts with described railing lower end, limits described fence unit and rotates outside described operating desk.
CN201420745013.7U 2014-12-01 2014-12-01 For the folding guardrail of screw pump discharge opeing well-mouth operating floor Active CN204401591U (en)

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Application Number Priority Date Filing Date Title
CN201420745013.7U CN204401591U (en) 2014-12-01 2014-12-01 For the folding guardrail of screw pump discharge opeing well-mouth operating floor

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104499471A (en) * 2014-12-01 2015-04-08 中国海洋石油总公司 Foldable guardrail used in screw rod pump liquid discharge well mouth operation platform
CN108797985A (en) * 2018-05-14 2018-11-13 河南卫华特种车辆有限公司 It is a kind of to fold the mechanism that walks on stage
CN112219734A (en) * 2020-10-16 2021-01-15 西藏新好科技有限公司 Pig is with high obstetric table water conservancy diversion platform

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104499471A (en) * 2014-12-01 2015-04-08 中国海洋石油总公司 Foldable guardrail used in screw rod pump liquid discharge well mouth operation platform
CN104499471B (en) * 2014-12-01 2016-05-18 中国海洋石油总公司 For the folding guardrail of screw pump discharge opeing well-mouth operating floor
CN108797985A (en) * 2018-05-14 2018-11-13 河南卫华特种车辆有限公司 It is a kind of to fold the mechanism that walks on stage
CN112219734A (en) * 2020-10-16 2021-01-15 西藏新好科技有限公司 Pig is with high obstetric table water conservancy diversion platform

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