CN201305987Y - Foldable cover plate and foldable guardrail - Google Patents

Foldable cover plate and foldable guardrail Download PDF

Info

Publication number
CN201305987Y
CN201305987Y CNU2008201565254U CN200820156525U CN201305987Y CN 201305987 Y CN201305987 Y CN 201305987Y CN U2008201565254 U CNU2008201565254 U CN U2008201565254U CN 200820156525 U CN200820156525 U CN 200820156525U CN 201305987 Y CN201305987 Y CN 201305987Y
Authority
CN
China
Prior art keywords
cover plate
connecting portion
foldable
foot pedal
pedal apparatus
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
Application number
CNU2008201565254U
Other languages
Chinese (zh)
Inventor
施挺
应江科
刘炳义
马俊波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI TEPIA S&T CO Ltd
Original Assignee
SHANGHAI TEPIA S&T CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SHANGHAI TEPIA S&T CO Ltd filed Critical SHANGHAI TEPIA S&T CO Ltd
Priority to CNU2008201565254U priority Critical patent/CN201305987Y/en
Application granted granted Critical
Publication of CN201305987Y publication Critical patent/CN201305987Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Abstract

The utility model relates to a foldable cover plate and a foldable guardrail. The foldable guardrail comprises the foldable cover plate arranged on a device hoisting port of slabs of a building, and a support frame is arranged around the device hoisting port. The foldable guardrail is characterized in that the foldable guardrail comprises a first cover plate having a first connection section for connecting a support frame and a second connection section opposite to the first connection section, wherein the first connection section can rotate around a first axis relative to the support frame; a second cover plate having a third connection section connected with the second connection section of the first cover plate and a fourth connection section opposite to the third connection section, wherein the second cover plate can rotate around a second axis parallel to the first axis relative to the first cover plate; a support section arranged on both sides of the second cover plate between the third connection section and the fourth connection section; and a balance weight connected with the fourth connection section of the second cover plate so that the centers of gravity of the second cover plate and the balance weight are located on one side of the support section close to the fourth connection section.

Description

Foldable cover plate and foldable guardrail
Technical field
The utility model relates to cover plate and the guardrail on a kind of equipment hoisting mouth that is arranged on building floor.
Background technology
On the equipment hoisting mouth of the building floor of power plant, at scaffold and cover plate junction gear-box must be arranged, and cover plate the canine tooth roller box is also big more many more more, the space is not utilized effectively, effective vent is little more many than actual aperture.
Because the restriction of structure, the height that cover plate erects are determined that by opening therefore, guardrail height is difficult to guarantee.
When opening was big, cover plate can just must hang De Genggao to equipment during hanging device than higher, so the lifting of equipment has certain requirement to the height of floor.Therefore from then on the angle prior art just can not be made the cover plate of opening greatly on structure.
Because the restriction on the principle, when opening opening, the speed that cover plate is opened can be more and more faster, and this is because all constantly acceleration and causing under action of inertia of cover plate and weight.And when opening is big, can only adopt the way that reduces weight for fear of the bump that causes acceleration to cause, so the big more balance that is not easy more, the pulling force that needs is also just big more.Therefore from then on the original technology of angle just can not be made the cover plate of large mouth on the principle.
Safety, original cover plate are unsettled after drawing back, and must fix by latch.And if because forget or because have the people to joke etc. former thereby do not insert latch with, perhaps under the situation of latch damage.Do not have the effect of guardrail after cover plate is opened, stay next potential safety hazard.
Because the existence of gear-box, so cover plate can not be placed directly on the ground.The space that accounts for is also bigger.Cause transportation, placement and installation are all very inconvenient.
The utility model content
The foldable guardrail that the purpose of this utility model is a kind of Foldable cover plate is provided and comprises this Foldable cover plate, it can satisfy the actual demand of bigger opening.
Realize the Foldable cover plate of aforementioned purpose, be used to be arranged on the equipment hoisting mouth of building floor, be provided with scaffold around this equipment hoisting mouth, be characterized in comprising: first cover plate, have first connecting portion and second connecting portion, second connecting portion is relative with first connecting portion, and first connecting portion is used to connect scaffold, can rotate around first axle relative to scaffold; Second cover plate, have the 3rd connecting portion and the 4th connecting portion, the 4th connecting portion is relative with the 3rd connecting portion, and second connecting portion of the 3rd connecting portion and first cover plate connects, second cover plate can relative first cover plate around second rotational, second axis is parallel with first axle; Be arranged on the support of the second cover plate both sides, this support is between the 3rd connecting portion and the 4th connecting portion; And the counterweight that is connected in the 4th connecting portion of second cover plate, so that the center of gravity of second cover plate is in the side near the 4th connecting portion of support.
Described Foldable cover plate, its further characteristics are that this Foldable cover plate also comprises the supporting arrangement that connects with support.
Described Foldable cover plate, its further characteristics are that this supporting arrangement is a roller.
Described Foldable cover plate, its further characteristics are that when this Foldable cover plate was folding fully, the distance between supporting arrangement and the 3rd connecting portion equaled the distance between first connecting portion and second connecting portion.
Described Foldable cover plate, its further characteristics be, second connecting portion of first cover plate and the 3rd connecting portion of second cover plate connect by at least one coupling spindle, and the central axis of described coupling spindle is described second axis.
Described Foldable cover plate, its further characteristics are, second connecting portion of first cover plate and the 3rd connecting portion of second cover plate connect by many group coupling spindles and bearing, in these many group coupling spindles and bearing, each coupling spindle is by a bearing support, and part in groups coupling spindle and bearing in dispose the single direction ratchet system that comprises ratchet and pawl.
Described Foldable cover plate, its further characteristics be, this Foldable cover plate also comprises spring bumper, and this spring bumper has first end, second end and a rotation; First end of this spring bumper is connected in second connecting portion of first cover plate, second end of this spring bumper is connected in the 3rd connecting portion of second cover plate, thereby this spring bumper can provide the thrust that makes the steady unlatching of this Foldable cover plate and the resistance that this cover plate is steadily closed is provided; This rotation is the central axis of described coupling spindle.
Described Foldable cover plate, its further characteristics be, this Foldable cover plate also comprises spring bumper, and this spring bumper has first end and second end; First end of this spring bumper is connected in second connecting portion of first cover plate, second end of this spring bumper is connected in the 3rd connecting portion of second cover plate, thereby this spring bumper can provide the thrust that makes the steady unlatching of this Foldable cover plate and the resistance that this cover plate is steadily closed is provided; This spring bumper is arranged in addition in 2 groups of these 4 groups of coupling spindles and bearing, and this spring bumper is rotating shaft with the coupling spindle.
Described Foldable cover plate, its further characteristics are that this spring bumper is a spring, described Foldable cover plate, its further characteristics are that this Foldable cover plate also comprises assists first cover plate and second cover plate to cross the servicing unit of dead-centre position from its position that is folded fully.
Described Foldable cover plate, its further characteristics be, servicing unit is a foot pedal apparatus, and this foot pedal apparatus has first end, second end and a pivot center; This foot pedal apparatus connects with first cover plate, and can be around this pivot axis, first end of foot pedal apparatus and second end are positioned at the both sides of the pivot center of foot pedal apparatus, after this Foldable cover plate was opened, first end of foot pedal apparatus deviated from second end face of second cover plate and foot pedal apparatus to second cover plate.
Described Foldable cover plate, its further characteristics be, each foot pedal apparatus connects with a back-moving spring, and this back-moving spring applies first end that makes this foot pedal apparatus and turns to elastic force in the storage tank that first cover plate provides on foot pedal apparatus.
Described Foldable cover plate, its further characteristics are, this foot pedal apparatus comprises a lever and a foot rest, first end of this lever connects foot rest and constitutes described first end of this foot pedal apparatus, this lever connects with first cover plate and with the described pivot center of this foot pedal apparatus, second end of this lever constitutes described second end of described foot pedal apparatus.
Described Foldable cover plate, its further characteristics are, this Foldable cover plate also comprises the single direction ratchet system, the single direction ratchet system comprises ratchet, ratchet and the pull unit that ratchet and pawl is separated, ratchet and pawl is arranged between the 3rd connecting portion of second connecting portion of first cover plate and second cover plate, ratchet is fixed by ratchet, thereby ratchet can only be towards making the pent direction one-directional rotation of this Foldable cover plate.
Described Foldable cover plate, its further characteristics are that this ratchet is fixed in the rotating shaft, this rotating shaft connects first cover plate rotationally, pull unit comprises a pull bar and transmission device, and the input of pull bar and transmission device connects, and the output of described rotating shaft and transmission device connects.
Described Foldable cover plate, its further characteristics be, first connecting portion is the end of first cover plate, and the 3rd connecting portion is the end of second cover plate.
Realize the foldable guardrail of described purpose, comprise aforementioned Foldable cover plate, also comprise: the scaffold that around this equipment hoisting mouth, is provided with, this scaffold has first limit, second limit, the 3rd limit and the 4th limit, first limit is relative with second limit, the 3rd limit is relative with the 4th limit, and first connecting portion of first cover plate of this Foldable cover plate is connected in first limit; Be arranged on the supporting station on the 3rd limit and the 4th limit of this scaffold; And the track that on this supporting station, is provided with, when opening Foldable cover plate, the supporting arrangement that connects with support moves on this track; Wherein, at a closure state, first cover plate and second cover plate are sealed the equipment hoisting mouth, and the 3rd connecting portion of second cover plate and the part between the support are supported by supporting station, and first cover plate and second cover plate have lap.
Described foldable guardrail, its further characteristics be, also comprises the 3rd limit that is arranged on scaffold and the side hurdle on the 4th limit.
Described foldable guardrail, its further characteristics are, at described closure state, first cover plate also part is supported by supporting station, second cover plate bears first moment that own wt causes and bears because second moment that the weight of first cover plate causes, and second cover plate is in equilibrium state under the effect of two these moments; First cover plate bears the 3rd moment that is caused by second moment, it is the reaction force distance, also bear the 4th moment that own wt causes and bear the 5th moment that supporting station causes the supporting force of first cover plate, and first cover plate is in equilibrium state under the effect of the 3rd moment, the 4th moment and the 5th moment.
Foldable cover plate of the present utility model and foldable guardrail have such beneficial effect: Foldable cover plate comprises first cover plate and second cover plate, first cover plate and second cover plate connect rotationally, when opening Foldable cover plate, second cover plate can turn to the position parallel with first cover plate, promptly first cover plate and second cover plate have been formed folding structure, guardrail height only is the height of first cover plate, has so just satisfied the actual demand of the lower guardrail height opening that needs are bigger simultaneously of needs.
Aforementioned purpose of the present utility model, technical scheme and advantage are with the accompanying drawings and the specific embodiment illustrate further below.
Description of drawings
Fig. 1 has shown an embodiment of foldable guardrail of the present utility model, and foldable guardrail wherein is in the state of opening fully.
Fig. 2 has shown that the foldable guardrail among Fig. 1 is in closing state.
Fig. 3 has shown that foldable guardrail shown in Figure 1 is in the state when opening.
Fig. 4 has shown from the observed foldable guardrail shown in Figure 3 of another angle.
Fig. 5 has shown an embodiment of the foot pedal apparatus of Foldable cover plate of the present utility model, and wherein, foot pedal apparatus is in original state.
Fig. 6 has shown from the observed foot pedal apparatus shown in Figure 5 of another angle.
Fig. 7 has shown the embodiment after foot pedal apparatus shown in Figure 5 is configured to a Foldable cover plate, and Foldable cover plate wherein is opened.
Fig. 8 has shown an embodiment of the ratchet system of Foldable cover plate of the present utility model, and wherein pawl-and-gearing is in engagement.
Fig. 9 has shown ratchet system shown in Figure 8, for ease of observing, has saved part and exposes the meshing relation of ratchet and pawl.
Figure 10 has shown an embodiment of the pull bar in the ratchet system shown in Figure 8.
Figure 11 has shown the embodiment of the supporting arrangement that connects with the support of Foldable cover plate of the present utility model, and this supporting arrangement has been disposed at a foldable guardrail, and Foldable cover plate wherein is in closure state.
Figure 12 has shown the described embodiment of Figure 11, and Foldable cover plate wherein is in the state of opening.
Figure 13 has shown the embodiment of the spring bumper of Foldable cover plate of the present utility model.
Figure 14 has shown embodiment shown in Figure 13, has wherein saved part and has exposed spring for the ease of demonstration.
Figure 15 has shown the side direction view of embodiment shown in Figure 3.
The specific embodiment
In order to be described, be described simultaneously with identical accompanying drawing with Foldable cover plate according to foldable guardrail of the present utility model below in simple mode.
In Fig. 1, for the ease of observing, saved building floor, foldable guardrail comprises two symmetrically arranged Foldable cover plates 11 and two symmetrically arranged fences 12.Foldable guardrail among Fig. 1 is in the state of opening fully.If Foldable cover plate 11 is closed, then two Foldable cover plates 11 can cover the equipment hoisting mouth fully.Two symmetrically arranged fences 12 can be convenient to operatively freely rise and fall.Foldable cover plate 11 and fence 12 all are arranged on the framework 13.Reply framework 13 is done to understand widely, and it is appreciated that into any supporting arrangement that is suitable for being arranged on the equipment hoisting mouth.Fig. 2 has shown that the foldable guardrail among Fig. 1 is in closing state.Two Foldable cover plates 11 have covered the equipment hoisting mouth fully, and fence 12 is placed on the Foldable cover plate 11 after rotating 90 degree.As can be seen from Figure 1, the height of guardrail is substantially equal to the height that is positioned at part on the framework 13 of Foldable cover plate 11, rather than equals the height of whole cover plate as prior art.As shown in Figure 2, two Foldable cover plates can be symmetrical arranged fully, can also only hide the equipment hoisting mouth by a Foldable cover plate 11.One side of Foldable cover plate 11 is provided with foot pedal apparatus 112 and pull bar 113, as described later, foot pedal apparatus 112 makes the operator can close Foldable cover plate 11 like a cork, and pull bar 113 can be so that the operator opens Foldable cover plate 11 like a cork, and for the ease of safety, the operator can only open Foldable cover plate 11 by pull bar 113.Structure, action, the composition of one Foldable cover plate 11 below emphasis are described.
Fig. 3 has shown that a foldable guardrail shown in Figure 1 is in the state when opening.Fig. 4 has shown from the observed foldable guardrail shown in Figure 3 of another angle.Can find out that from the state of Fig. 3 and foldable guardrail shown in Figure 4 because the part of Foldable cover plate 11 can be because of folding downside as for framework 13, thereby the height of the feasible foldable guardrail of opening fully descends significantly.
Fig. 5 has shown an embodiment of the foot pedal apparatus of Foldable cover plate of the present utility model, and wherein, foot pedal apparatus is in original state.Fig. 6 has shown from the observed foot pedal apparatus shown in Figure 5 of another angle.Fig. 7 has shown the embodiment after foot pedal apparatus shown in Figure 5 is configured to a Foldable cover plate, and Foldable cover plate wherein is opened.This foot pedal apparatus 14 comprises a lever 140 and a foot rest 141.Lever 140 has first end 1410, second end 1411 and a pivot center 1412.Lever 140 connects with first cover plate 115 (not showing in Fig. 5 and Fig. 6) by a rotating shaft, and the central axis of this rotating shaft is pivot center 1412.First end 1410 of lever connects foot rest 141.As shown in Figure 7, after Foldable cover plate was opened fully, second cover plate 116 was run into second end 1411 of lever 143, forced lever 140 counterclockwise to rotate around its axis 1412.First end 1410 of lever 140 and second end 1411 lay respectively at the both sides of first cover plate 115 after Foldable cover plate is opened, wherein first end 1410 deviates from second cover plate 116, and second end 1411 is towards second cover plate 116.Preferably, the distance of shaft axis 1412 to second ends 1411 is greater than the distance of shaft axis 1412 to first ends 1410, and like this, the user applies less power at first end 1410, just can promote second cover plate 116.At the initial position of foot pedal apparatus, first end 1410 and the foot rest 141 of lever 140 are arranged in the storage tank that first cover plate 115 provides, and second end 1411 of foot rest 141 is away from first cover plate 115.Foot pedal apparatus also comprises a back-moving spring 143, this back-moving spring 143 applies first end 1410 that makes this lever 140 and turns to elastic force in the described storage tank that first cover plate 115 provides on lever 140, as shown in Figure 7, after second cover plate 116 leaves first cover plate 115, under the effect of back-moving spring 143, lever 140 will be returned to its original state.In the embodiment shown in Fig. 5-7, foot pedal apparatus comes down to a lever, yet, the enforcement of foot pedal apparatus is not limited thereto, as long as it possesses the feature of lever " first end, second end and pivot center ", in the foregoing embodiments, first end 1410 of foot rest 141 and lever 140 is connected into an end of this foot pedal apparatus in fact, and second end of lever 140 constitutes the other end of this foot pedal apparatus in fact.
Fig. 8 has shown an embodiment of the ratchet system of Foldable cover plate of the present utility model, and wherein pawl-and-gearing is in engagement.Fig. 9 has shown ratchet system shown in Figure 8, for ease of observing, has saved part and exposes the meshing relation of ratchet and pawl.Figure 10 has shown an embodiment of the pull bar in the ratchet system shown in Figure 8.Single direction ratchet system 119 comprises ratchet 1191, ratchet 1192 and makes ratchet 1191 and pull unit that ratchet 1192 separates that this pull unit comprises screw-wheel gearing and the pull bar 113 that helical gear 1195,1194 is formed.Pull bar 113 connects with the input of helical gear tumbler by coupling spindle 1196, the output of screw-wheel gearing connects with coupling spindle 1193, coupling spindle 1193 is connected with first cover plate 115 rotationally by bearing 1197 supportings, ratchet 1192 is fixed on the coupling spindle 1193, ratchet 1191 is fixed on second cover plate 116, as Fig. 8 and shown in Figure 9, ratchet 1192 " is caught " ratchet 1191, thereby ratchet 1191 can only be a direction relative motion with ratchet 1192, state shown in Figure 8 can only allow Foldable cover plate to be in closing state and can not be opened.The operator can spur pull bar 113 and drive coupling spindle rotation coupling spindle 1196 by unilateral bearing, coupling spindle 1196 drives the transmission device of being made up of helical gear 1195,1194 again, this transmission device drives coupling spindle 1193 again, the rotation of coupling spindle 1193 makes ratchet 1192 break away from ratchet 1191, thereby first cover plate 115 and second cover plate 116 just can move towards the direction that opens or closes.Obviously, the pull unit that mainly is made of aforesaid coupling spindle 1196, screw-wheel gearing, coupling spindle 1193 can be replaced by multiple structure.
Figure 11 has shown the embodiment of the supporting arrangement that connects with the support of Foldable cover plate of the present utility model, and this supporting arrangement has been disposed at a foldable guardrail, and Foldable cover plate wherein is in closure state.Figure 12 has shown the described embodiment of Figure 11, and Foldable cover plate wherein is in the state of opening.The both sides of second cover plate 116 have a support respectively, and this support connects with a roller 140, and referring to Fig. 4, this roller 140 is used to be arranged on the track 141 on the framework 13 and rolls.When Foldable cover plate was closed, it was disorbit 141 that roller 140 preferably is configured to, and can prevent roller 140 distortion like this, and increased the life-span of roller 140.
Figure 13 has shown the embodiment of the spring bumper of Foldable cover plate of the present utility model.Figure 14 has shown embodiment shown in Figure 13, has wherein saved part and has exposed spring for the ease of demonstration.Spring bumper 150 has first end 151, second end 152 and a rotation 153; First end 151 of spring bumper 150 is connected on first cover plate 115, second end 152 is connected on second cover plate 116, this spring assembly 150 can be selected from multiple spring, and it is provided with in the following manner: this spring bumper can provide and make the steady thrust of opening of this Foldable cover plate and the resistance that this cover plate is steadily closed is provided.
Below, the structure of Foldable cover plate is described in continuation in detail.Figure 15 has shown the side direction view of embodiment shown in Figure 3.Simultaneously in conjunction with Fig. 3 and Figure 15, first cover plate 115 has first connecting portion 1151 and second connecting portion 1152, second connecting portion 1151 is relative with first connecting portion 1152, and first connecting portion 1151 is used to connect scaffold 13, can rotate around first axle 1158 relative to scaffold 13.Second cover plate 116 has the 3rd connecting portion 1161 and the 4th connecting portion 1162, the 4th connecting portion 1162 is relative with the 3rd connecting portion 1161, second connecting portion 1152 of the 3rd connecting portion 1161 and first cover plate 115 connects, second cover plate 116 can rotate around second axis 1159 relative to first cover plate 115, and second axis 1159 is parallel with first axle 1158.The support 1163 of the both sides of second cover plate 116 between the 3rd connecting portion 1161 and the 4th connecting portion 1162, the support of the just aforesaid connection roller 140 of support 1163.The 4th connecting portion 1162 of second cover plate 116 connects with a counterweight 118, the weight of this counterweight 118 is enough to make the side near four connecting portion 1162 of the center of gravity of second cover plate and this counterweight at support 1163, the i.e. right side of the support in Figure 15 1163, such second cover plate 116 have the trend of rotating toward the clockwise direction all the time.
Both sides at framework 13 are provided with supporting station, when Foldable cover plate is closed, the 3rd connecting portion 1161 of second cover plate 116 and the both sides of the part between the support 1163 are by this supporting station supporting, and the part between support 1163 to the 4th connecting portions 1162 is unsettled, the both sides of first cover plate 115 also can be supported by supporting station, and the part of first cover plate 115 also is pressed on second cover plate 116.In the embodiment shown in fig. 15, first connecting portion 1151 is the end of first cover plate 115 in fact, and the 3rd connecting portion 1161 is the end of second cover plate 116 in fact.When Foldable cover plate is closed, second cover plate 116 bears first moment that own wt causes and bears because second moment that the weight of first cover plate 115 causes, and second cover plate 116 is in equilibrium state under the effect of two these moments, and clockwise rotation can not take place.First cover plate 115 bears the 3rd moment that is caused by aforementioned second moment, the i.e. reaction force distance of second moment, also bear the 4th moment that own wt causes and bear the 5th moment that supporting station causes the supporting force of first cover plate, and first cover plate is in equilibrium state under the effect of the 3rd moment, the 4th moment and the 5th moment.Like this, open first cover plate 115, as long as on first cover plate, apply a moment by pull bar 113, this moment is opposite with the direction of the 4th moment, and size is the poor of the 4th moment and the 3rd moment, just can draw back cover plate, when cover plate is opened, the 4th moment, conversion can take place in the 3rd moment, promptly become big simultaneously and diminish, and its difference also can change (diminishing), because second cover plate 116 is because first cover plate 115 is pushed down and just kept balance, when therefore first cover plate is opened, second cover plate can be opened thereupon, and also promptly by regulating the weight of second cover plate 116 and counterweight 118, the moment that can make a people provide just can be opened Foldable cover plate, and regulate the length of first cover plate 115, can obtain needed fence height with the length that changes two cover plate laps simultaneously.In the foregoing embodiments, after Foldable cover plate was opened (folding fully in other words) fully, the distance between supporting arrangement and the 3rd connecting portion equaled the distance between first connecting portion and second connecting portion.
The opening procedure of Foldable cover plate has been described in the front, can also understand that by this opening procedure the pass closed procedure of Foldable cover plate also is easy to realize, when closing, as shown in Figure 7, the operator promotes second cover plate 116 by previously described foot pedal apparatus, promote two cover plates and cross the dead-centre position, under the effect of spring bumper and counterweight, whole Foldable cover plate will return back to the original state of closing reposefully.Aforementioned foot pedal apparatus can also be realized with other devices that can assist two cover plates to cross the dead-centre position in fact as a kind of servicing unit.
As shown in Figure 4, second cover plate 116 and first cover plate 115 are realized rotatable the connection by 4 groups of bearings, coupling spindle, and aforesaid spring bumper can be arranged in one group of bearing, the coupling spindle.Aforesaid single direction ratchet system 119 can with other bearing, coupling spindle group phase configuration.
Though the utility model discloses as above with preferred embodiment, yet it is not in order to limit the utility model, anyly be familiar with one of ordinary skill in the art, in not breaking away from spirit and scope of the present utility model, should make the variation or the replacement of all equivalences.Therefore, protection domain of the present utility model is as the criterion when looking accompanying the scope that the application's claim defined.

Claims (19)

1. Foldable cover plate is used to be arranged on the equipment hoisting mouth of building floor, is provided with scaffold around this equipment hoisting mouth, it is characterized in that comprising:
First cover plate has first connecting portion and second connecting portion, and second connecting portion is relative with first connecting portion, and first connecting portion is used to connect scaffold, can rotate around first axle relative to scaffold;
Second cover plate, have the 3rd connecting portion and the 4th connecting portion, the 4th connecting portion is relative with the 3rd connecting portion, and second connecting portion of the 3rd connecting portion and first cover plate connects, second cover plate can relative first cover plate around second rotational, second axis is parallel with first axle;
Be arranged on the support of the second cover plate both sides, this support is between the 3rd connecting portion and the 4th connecting portion; And
Be connected in the counterweight of the 4th connecting portion of second cover plate, so that the center of gravity of second cover plate and counterweight is in the side near the 4th connecting portion of support.
2. Foldable cover plate as claimed in claim 1 is characterized in that this Foldable cover plate also comprises the supporting arrangement that connects with support.
3. Foldable cover plate as claimed in claim 2 is characterized in that this supporting arrangement is a roller.
4. Foldable cover plate as claimed in claim 2 is characterized in that, when this Foldable cover plate was folding fully, the distance between supporting arrangement and the 3rd connecting portion equaled the distance between first connecting portion and second connecting portion.
5. Foldable cover plate as claimed in claim 1 is characterized in that, second connecting portion of first cover plate and the 3rd connecting portion of second cover plate connect by at least one coupling spindle, and the central axis of described coupling spindle is described second axis.
6. Foldable cover plate as claimed in claim 5, it is characterized in that, second connecting portion of first cover plate and the 3rd connecting portion of second cover plate connect by many groups group coupling spindle and bearing, in these many group coupling spindles and bearing, each coupling spindle is by a bearing support, and a part in groups coupling spindle and bearing in dispose the single direction ratchet system that comprises ratchet and pawl.
7. Foldable cover plate as claimed in claim 5 is characterized in that this Foldable cover plate also comprises spring bumper, and this spring bumper has first end, second end and a rotation; First end of this spring bumper is connected in second connecting portion of first cover plate, second end of this spring bumper is connected in the 3rd connecting portion of second cover plate, thereby this spring bumper can provide the thrust that makes the steady unlatching of this Foldable cover plate and the resistance that this cover plate is steadily closed is provided; This rotation is the central axis of described coupling spindle.
8. Foldable cover plate as claimed in claim 6 is characterized in that this Foldable cover plate also comprises spring bumper, and this spring bumper has first end and second end; First end of this spring bumper is connected in second connecting portion of first cover plate, second end of this spring bumper is connected in the 3rd connecting portion of second cover plate, thereby this spring bumper can provide the thrust that makes the steady unlatching of this Foldable cover plate and the resistance that this cover plate is steadily closed is provided; This spring bumper is arranged in addition in 2 groups of these 4 groups of coupling spindles and bearing, and this spring bumper is rotating shaft with the coupling spindle.
9. Foldable cover plate as claimed in claim 8 is characterized in that, this spring bumper is a spring, and this spring provides the elastic force of folding this Foldable cover plate.
10. Foldable cover plate as claimed in claim 1 is characterized in that, this Foldable cover plate also comprises assists first cover plate and second cover plate to cross the servicing unit of dead-centre position from its position that is folded fully.
11. Foldable cover plate as claimed in claim 10 is characterized in that, this servicing unit is a foot pedal apparatus, and this foot pedal apparatus has first end, second end and a pivot center; This foot pedal apparatus connects with first cover plate, and can be around this pivot axis, first end of foot pedal apparatus and second end are positioned at the both sides of the pivot center of foot pedal apparatus, after this Foldable cover plate was opened, first end of foot pedal apparatus deviated from second end face of second cover plate and foot pedal apparatus to second cover plate.
12. Foldable cover plate as claimed in claim 11 is characterized in that, each foot pedal apparatus connects with a back-moving spring, and this back-moving spring applies first end that makes this foot pedal apparatus and turns to elastic force in the storage tank that first cover plate provides on foot pedal apparatus.
13. Foldable cover plate as claimed in claim 11, it is characterized in that, this foot pedal apparatus comprises a lever and a foot rest, first end of this lever connects foot rest and constitutes described first end of this foot pedal apparatus, this lever connects with first cover plate and with the described pivot center of this foot pedal apparatus, second end of this lever constitutes described second end of described foot pedal apparatus.
14. Foldable cover plate as claimed in claim 1, it is characterized in that, this Foldable cover plate also comprises the single direction ratchet system, the single direction ratchet system comprises ratchet, ratchet and the pull unit that ratchet and pawl is separated, ratchet and pawl is arranged between the 3rd connecting portion of second connecting portion of first cover plate and second cover plate, ratchet is fixed by ratchet, thereby ratchet can only be towards making the pent direction one-directional rotation of this Foldable cover plate.
15. Foldable cover plate as claimed in claim 13 is characterized in that, this ratchet is fixed in the rotating shaft, this rotating shaft connects first cover plate rotationally, pull unit comprises a pull bar and transmission device, and the input of pull bar and transmission device connects, and the output of described rotating shaft and transmission device connects.
16. Foldable cover plate as claimed in claim 1 is characterized in that, first connecting portion is the end of first cover plate, and the 3rd connecting portion is the end of second cover plate.
17. one kind comprises as the foldable guardrail of the described Foldable cover plate of each claim in the claim 1 to 16, it is characterized in that, also comprises:
The scaffold that around this equipment hoisting mouth, is provided with, this scaffold has first limit, second limit, the 3rd limit and the 4th limit, first limit is relative with second limit, and the 3rd limit is relative with the 4th limit, and first connecting portion of first cover plate of this Foldable cover plate is connected in first limit;
Be arranged on the supporting station on the 3rd limit and the 4th limit of this scaffold; And
The track that on this supporting station, is provided with, when opening Foldable cover plate, the supporting arrangement that connects with support moves on this track;
Wherein, at a closure state, first cover plate and second cover plate are sealed the equipment hoisting mouth, and the 3rd connecting portion of second cover plate and the part between the support are supported by supporting station, and first cover plate and second cover plate have lap.
18. foldable guardrail as claimed in claim 17 is characterized in that, also comprises the 3rd limit that is arranged on scaffold and the side hurdle on the 4th limit.
19. foldable guardrail as claimed in claim 17, it is characterized in that, at described closure state, first cover plate also part is supported by supporting station, second cover plate bears first moment that own wt causes and bears because second moment that the weight of first cover plate causes, and second cover plate is in equilibrium state under the effect of two these moments; First cover plate bears the 3rd moment that is caused by second moment, it is the reaction force distance, also bear the 4th moment that own wt causes and bear the 5th moment that supporting station causes the supporting force of first cover plate, and first cover plate is in equilibrium state under the effect of the 3rd moment, the 4th moment and the 5th moment.
CNU2008201565254U 2008-12-04 2008-12-04 Foldable cover plate and foldable guardrail Expired - Fee Related CN201305987Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008201565254U CN201305987Y (en) 2008-12-04 2008-12-04 Foldable cover plate and foldable guardrail

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008201565254U CN201305987Y (en) 2008-12-04 2008-12-04 Foldable cover plate and foldable guardrail

Publications (1)

Publication Number Publication Date
CN201305987Y true CN201305987Y (en) 2009-09-09

Family

ID=41098454

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2008201565254U Expired - Fee Related CN201305987Y (en) 2008-12-04 2008-12-04 Foldable cover plate and foldable guardrail

Country Status (1)

Country Link
CN (1) CN201305987Y (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010063222A1 (en) * 2008-12-04 2010-06-10 上海太比雅科技有限公司 Folding cover plate
CN105019765A (en) * 2015-08-10 2015-11-04 江苏广通电力设备有限公司 Sliding subsidiary door sheet type hanging hole safety protection device
CN105502137A (en) * 2015-12-23 2016-04-20 日立电梯(广州)自动扶梯有限公司 Floor plate opening device, escalator and moving walkway
CN106320861A (en) * 2016-11-01 2017-01-11 新昌县丰泽机械有限公司 Connecting and locking device of access hole
CN106368579A (en) * 2016-11-01 2017-02-01 新昌县丰泽机械有限公司 Overhaul port with intelligent locking system
CN106499273A (en) * 2016-11-01 2017-03-15 新昌县丰泽机械有限公司 A kind of fastening system of access hole
CN106639824A (en) * 2016-11-01 2017-05-10 新昌县丰泽机械有限公司 Service port
CN107120018A (en) * 2017-03-17 2017-09-01 江苏广通电力设备有限公司 One kind balance jack up hanging object blind patch

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010063222A1 (en) * 2008-12-04 2010-06-10 上海太比雅科技有限公司 Folding cover plate
CN101748882B (en) * 2008-12-04 2012-09-05 上海太比雅科技有限公司 Foldable cover plate and foldable guardrail
CN105019765A (en) * 2015-08-10 2015-11-04 江苏广通电力设备有限公司 Sliding subsidiary door sheet type hanging hole safety protection device
CN105502137A (en) * 2015-12-23 2016-04-20 日立电梯(广州)自动扶梯有限公司 Floor plate opening device, escalator and moving walkway
CN106320861A (en) * 2016-11-01 2017-01-11 新昌县丰泽机械有限公司 Connecting and locking device of access hole
CN106368579A (en) * 2016-11-01 2017-02-01 新昌县丰泽机械有限公司 Overhaul port with intelligent locking system
CN106499273A (en) * 2016-11-01 2017-03-15 新昌县丰泽机械有限公司 A kind of fastening system of access hole
CN106639824A (en) * 2016-11-01 2017-05-10 新昌县丰泽机械有限公司 Service port
CN106320861B (en) * 2016-11-01 2017-08-29 新昌县丰泽机械有限公司 A kind of connection lock uint of access hole
CN106639824B (en) * 2016-11-01 2018-06-08 新昌县丰泽机械有限公司 A kind of access hole
CN107120018A (en) * 2017-03-17 2017-09-01 江苏广通电力设备有限公司 One kind balance jack up hanging object blind patch
CN107120018B (en) * 2017-03-17 2019-01-01 江苏广通电力设备有限公司 A kind of balance jack up hanging object blind patch

Similar Documents

Publication Publication Date Title
CN201305987Y (en) Foldable cover plate and foldable guardrail
CN101748882B (en) Foldable cover plate and foldable guardrail
CN201099937Y (en) Article-hoisting port safety barrier device
CN200993077Y (en) Universal wind tower
CN206971586U (en) A kind of outdoor shading system
CN201051353Y (en) Wind resisting advertisement plate
CN206658209U (en) A kind of network equipment using low-voltage DC supply
CN205479151U (en) Line draws electronic clothes hanger transmission of drying in air of formula
CN203308322U (en) Lifting-type foldable door / window
CN207440921U (en) There is the express delivery cabinet of water-impervious
CN201057246Y (en) Minitype electric rotating shaft
CN211455229U (en) A publicity column for enterprise image plan
CN206722669U (en) A kind of collapsible turnover panel door gear
CN201103663Y (en) Double-action mechanical driving mechanism
CN109567496B (en) Artwork pictorial display device
CN208279211U (en) A kind of tower-type crane operation platform with function of safety protection
CN203888896U (en) Manual wing-opening type compartment by aid of side board
CN109671351A (en) A kind of direction board
CN206928733U (en) A kind of falling proof device of multi-storied garage
CN202000804U (en) Device for driving electrically operated gate
CN206126737U (en) Hang climbing crane
CN217269329U (en) Worker safety protection's that building engineering used early warning device
CN205711858U (en) A kind of banister
CN208113531U (en) A kind of labour-saving greenhouse window-opening mechanism
CN201276764Y (en) Opening gear for hanging hole cover plate side tension rod

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: 20090909

Termination date: 20121204