CN203129557U - Steel-ball gravity-locking type fall-prevention device for integral lifting scaffold - Google Patents
Steel-ball gravity-locking type fall-prevention device for integral lifting scaffold Download PDFInfo
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- CN203129557U CN203129557U CN 201320120088 CN201320120088U CN203129557U CN 203129557 U CN203129557 U CN 203129557U CN 201320120088 CN201320120088 CN 201320120088 CN 201320120088 U CN201320120088 U CN 201320120088U CN 203129557 U CN203129557 U CN 203129557U
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- housing
- platen
- pin
- steel ball
- inclined hole
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Abstract
The utility model discloses a steel-ball gravity-locking type fall-prevention device for an integral lifting scaffold. The fall-prevention device is characterized by comprising a housing, a housing cover plate, a platen and a circular suspender; the bottom of the housing is fixedly connected with a frame through a mounting hole, the circular suspender penetrates through the housing, the housing cover plate and an inner hole of the center of the platen longitudinally, the upper end of the circular suspender is fixed to an inserted support, an inclined hole is arranged close to the circular suspender inside the housing, a center line of the inclined hole and a center line of the circular suspender form a closed angle, a spring and a steel ball are arranged in the inclined hole, the top of the steel ball contacts with an ejector pin penetrating out of the housing cover plate, the top of the ejector pin contacts with the platen with a pin arranged on the top, and the pin is connected with a linkage lever mechanism connected with a lifting power unit. The steel-ball gravity-locking type fall-prevention device has the advantages of instant automatic locking relying on frame gravity, high activity sensitivity, strong tight-locking force, small descending displacement, high reliability and high security.
Description
Technical field
The present invention relates to a kind of integral lifting scaffold with steel ball gravity locking type falling proof device, belong to the building implements field.
Background technology
Integral hoisting scaffold is in its construction ascending, descending campaign, for preventing must being provided with falling proof device at support body because liftings such as elevator braking device inefficacy or loop chain, wire rope, suspension hook attach the generation that causes the support body falling accident when disconnecting inefficacy.The existing falling proof device that is used for integral lifting scaffold in the industry generally has two types: a kind of is interior outer cone elasticity gravity locking type, but its structure more complicated, coupling mechanism force is smaller, sensitivity is also relatively poor, the relatively difficulty that resets after the locking also, the time stuck phenomenon is arranged, labour intensity is big; For strengthen coupling mechanism force also handlebar elasticity inner cone cut to the awl piece, but the awl piece can be subjected to displacement in external conical sleeve in the locking process, the action resistance is also bigger, and its sensitivity and reliability are had certain influence.Another kind is the mechanical lock compact form, this class designs most structure more complicated, to bear bigger kinetic energy and potential energy owing to bear the part of locking, make and require all than higher, however, also unavoidably under the effect of moment impact load, the possibility that lost efficacy appears, its reliability and security there is certain influence.
Summary of the invention
The purpose of this invention is to provide a kind of integral lifting scaffold with steel ball gravity locking type falling proof device, automatically lock support body, realization fall arrest function by this device moment.It has that action sensitivity height, coupling mechanism force are big, the tenesmus displacement is little, good reliability, safe characteristics.
The technical scheme that the present invention solves the problems of the technologies described above employing is:
Integral lifting scaffold steel ball gravity locking type falling proof device, comprise housing, housing cover, platen and circular suspension rod, described housing bottom is fixedlyed connected with support body by installing hole, described circular suspension rod vertically runs through housing, the central bore of housing cover and platen, the upper end of described circular suspension rod is fixed on to be adhered in the support, namely link together with major structure of construction, be provided with inclined hole near circular suspension rod in the described housing, the center line of described inclined hole and the center line of circular suspension rod acutangulate, be provided with spring and steel ball in the described inclined hole, the top of described steel ball contacts with the thimble that passes housing cover, the top of described thimble contacts with platen, the top of described platen is provided with pin, and described pin is connected with the linkage lever mechanism that is connected with lifting power plant.
Described linkage lever mechanism comprises that the lever arm, rocking pin and the push rod that is connected with lifting power plant, the described push rod that are connected with pin are arranged on the bottom of lever arm.
Advantage of the present invention is: rely on support body gravity moment automatic locking, and the action sensitivity height, coupling mechanism force is big, and the tenesmus displacement is little, good reliability, safe.
Description of drawings
Structural representation when Fig. 1 is the lifting power plant operate as normal.
Structural representation when Fig. 2 lost efficacy for lifting power plant.
Wherein: 1-1, housing, 1-2, housing cover, 1-3, platen, 1-4, installing hole, 1-5, inclined hole, 1-6, spring, 1-7, steel ball, 1-8 thimble, 2, circular suspension rod, 3, linkage lever mechanism, 3-1, lever arm, 3-2, rocking pin, 3-3, push rod, 4, pin.
The specific embodiment
As shown in Figure 1, integral lifting scaffold steel ball gravity locking type falling proof device, comprise housing 1-1, housing cover 1-2, platen 1-3 and circular suspension rod 2, housing 1-1 is fixedlyed connected with support body by installing hole 1-4 the bottom, circular suspension rod 2 vertically runs through housing 1-1, the central bore of housing cover 1-2 and platen 1-3, the upper end of circular suspension rod 2 is fixed on to be adhered in the support, namely link together with major structure of construction, in housing 1-1, be provided with inclined hole 1-5 near circular suspension rod 2, the center line of the center line of inclined hole 1-5 and circular suspension rod 2 acutangulates, in inclined hole 1-5, be provided with simultaneously spring 1-6 and steel ball 1-7, the top of steel ball 1-7 contacts with the thimble 1-8 that passes housing cover 1-2, the top of thimble 1-8 contacts with platen 1-3, the top of platen 1-3 is provided with pin 4, pin 4 is connected with the linkage lever mechanism 3 that is connected with lifting power plant, linkage lever mechanism 3 comprises the lever arm 3-1 that is connected with pin 4, rocking pin 3-2 and the push rod 3-3 that is connected with lifting power plant, push rod 3-3 is arranged on the bottom of lever arm 3-1.
Lifting power plant drives on the integral-scaffold in lifting or the decline process, be that lifting power plant is to the support body application of force, the push rod 3-3 that link to each other with lifting power plant this moment is also simultaneously stressed, the left end of the lever arm 3-1 of push rod 3-3 applies power upwards, under the effect of rocking pin 3-2, the other end of lever arm 3-1 is pressed to housing cover 1-2 by pin 4 with platen 1-3, platen 1-2 presses down thimble 1-8 simultaneously, steel ball 1-7 is depressed among the inclined hole 1-5 of housing, make steel ball 1-7 and circular suspension rod 2 be in not contact condition, at this moment, rise or the descend integral-scaffold of construction can enter and rises or the decline work condition state.
When the lifting power plant catastrophic failure, as shown in Figure 2, lifting power plant lost efficacy suddenly together with the external force that interlock leverage 3 is executed simultaneously to the lifting power that support body imposes, the power that the lever arm 3-1 of the push rod 3-3 that then links to each other with lifting power plant applies also lost efficacy, the other end of lever arm 3-1 also lost efficacy by the power of 4 couples of platen 1-3 of pin, the power that thimble 1-8 acts on the steel ball 1-7 lost efficacy in moment simultaneously, under spring 1-6 effect steel ball 1-7 along inclined hole 1-5 moment bullet to circular suspension rod 2, and along with moment the support body kinetic energy and the potential energy that fall, make steel ball effectively lock circular suspension rod 2 rapidly, thereby the support body that locking is fallen downwards, and circular suspension rod 2 upper ends are fixed on and adhere in the supporting, namely be linked together with major structure of construction, thereby realized the function of integral-scaffold fall arrest.
Need illustrate, will automatically its steel ball be opened as long as support body is applied lift upwards that so support body upwards lifting merely, linkage lever mechanism 3 can be in off position, this makes progress merely to support body and promotes without any influence.In lifting process, during the lifting power plant catastrophic failure, its lifting force that support body is imposed is catastrophic failure also, support body drops immediately, by its tenesmus gravity, steel ball 1-7 moment that falling proof device is in initial locking duty is being installed in falling proof device on the circular suspension rod 2 that adheres in the supporting together with support body is locked, forces support body not descend.
Claims (2)
1. integral lifting scaffold is with steel ball gravity locking type falling proof device, it is characterized in that: comprise housing, housing cover, platen and circular suspension rod, described housing bottom is fixedlyed connected with support body by installing hole, described circular suspension rod vertically runs through housing, the central bore of housing cover and platen, the upper end of described circular suspension rod is fixed on to be adhered in the support, be provided with inclined hole near circular suspension rod in the described housing, the center line of described inclined hole and the center line of circular suspension rod acutangulate, be provided with spring and steel ball in the described inclined hole, the top of described steel ball contacts with the thimble that passes housing cover, the top of described thimble contacts with platen, the top of described platen is provided with pin, and described pin is connected with the linkage lever mechanism that is connected with lifting power plant.
2. integral lifting scaffold according to claim 1 is with steel ball gravity locking type falling proof device, it is characterized in that: described linkage lever mechanism comprises that the lever arm, rocking pin and the push rod that is connected with lifting power plant, the described push rod that are connected with pin are arranged on the bottom of lever arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320120088 CN203129557U (en) | 2013-03-18 | 2013-03-18 | Steel-ball gravity-locking type fall-prevention device for integral lifting scaffold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320120088 CN203129557U (en) | 2013-03-18 | 2013-03-18 | Steel-ball gravity-locking type fall-prevention device for integral lifting scaffold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203129557U true CN203129557U (en) | 2013-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320120088 Expired - Fee Related CN203129557U (en) | 2013-03-18 | 2013-03-18 | Steel-ball gravity-locking type fall-prevention device for integral lifting scaffold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203129557U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628665A (en) * | 2013-12-19 | 2014-03-12 | 刘应杰 | Overall hoisting scaffold force feedback type anti-dropping locking mechanism |
| CN104005550A (en) * | 2014-06-13 | 2014-08-27 | 南通五建建设工程有限公司 | Lifting scaffold |
-
2013
- 2013-03-18 CN CN 201320120088 patent/CN203129557U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628665A (en) * | 2013-12-19 | 2014-03-12 | 刘应杰 | Overall hoisting scaffold force feedback type anti-dropping locking mechanism |
| CN103628665B (en) * | 2013-12-19 | 2015-08-12 | 刘应杰 | Integral lifting scaffold force feedback type anti-falling locking mechanism |
| CN104005550A (en) * | 2014-06-13 | 2014-08-27 | 南通五建建设工程有限公司 | Lifting scaffold |
| CN104005550B (en) * | 2014-06-13 | 2016-08-24 | 南通五建建设工程有限公司 | Elevating scaffold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20190318 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |