阅读说明：本技术 一种防坠落的安全升降装置 (Anti-falling safety lifting device ) 是由 邹建芳 于 2019-11-18 设计创作，主要内容包括：本发明公开了一种防坠落的安全升降装置,包括：移动底座、剪叉臂架以及工作平台,所述剪叉臂架设置在移动底座和工作平台之间,所述剪叉臂架上设置有第一液压缸,所述移动底座下表面两端均开设有凹槽,所述凹槽的上底面固定设置有第二液压缸,所述第二液压缸的输出端固定连接有移动轮,所述移动底座的两端设置有指向工作平台并贯穿工作平台的支撑杆,所述移动底座的下表面设置有橡胶防滑垫,所述橡胶防滑垫底部设置有防滑凸起。通过上述方式,本发明提供的防坠落的安全升降装置,避免了工作平台突然下落的问题,使用更加安全。(The invention discloses a fall-proof safety lifting device, which comprises: the movable base, the scissor arm support and the working platform are arranged, the scissor arm support is arranged between the movable base and the working platform, a first hydraulic cylinder is arranged on the scissor arm support, grooves are formed in two ends of the lower surface of the movable base, a second hydraulic cylinder is fixedly arranged on the upper bottom surface of each groove, a movable wheel is fixedly connected to the output end of the second hydraulic cylinder, supporting rods pointing to the working platform and penetrating through the working platform are arranged at two ends of the movable base, a rubber non-slip mat is arranged on the lower surface of the movable base, and a non-slip bulge is arranged at the bottom of the rubber non-slip mat. Through the mode, the anti-falling safety lifting device provided by the invention avoids the problem that the working platform falls suddenly, and is safer to use.)

1. A fall arrest safety hoist apparatus comprising: a movable base, a scissor arm support and a working platform, wherein the scissor arm support is arranged between the movable base and the working platform, it is characterized in that a first hydraulic cylinder is arranged on the scissor arm support, grooves are respectively arranged at the two ends of the lower surface of the movable base, a second hydraulic cylinder is fixedly arranged on the upper bottom surface of the groove, the output end of the second hydraulic cylinder is fixedly connected with a movable wheel, the two ends of the movable base are provided with support rods pointing to the working platform and penetrating through the working platform, guide sleeves corresponding to the support rods are arranged below the two sides of the working platform, third hydraulic cylinders pointing to the guide sleeves are arranged below two sides of the working platform, telescopic rods of the third hydraulic cylinders extend into support rods in the guide sleeves for limiting, the lower surface of the movable base is provided with a rubber non-slip mat, and the bottom of the rubber non-slip mat is provided with a non-slip bulge.

2. The fall arrest safety lifting device according to claim 1, wherein the travelling base is provided with a hydraulic pump connected to the first, second and third hydraulic cylinders.

3. The fall arrest safety lifting device according to claim 2, wherein a hydraulic tank is provided below the hydraulic pump.

4. The device of claim 1 wherein the shape of the stud is hemispherical, cylindrical or conical.

5. The device of claim 1 wherein the shape of the stud is irregular.

6. The device of claim 1 wherein the protrusions are evenly distributed on the bottom surface of the rubber mat.

7. The device of claim 1 wherein the protrusions are randomly distributed on the bottom surface of the rubber mat.

8. The fall arrest safety lifting device according to claim 1 wherein the support rod is a hollow tube with a plurality of axial position limiting holes corresponding to the extension rods of the third hydraulic cylinder.

9. The fall arrest safety lifting device according to claim 1 or 8, wherein the guide sleeve is provided with a guide hole corresponding to the limiting hole for the extension rod of the third hydraulic cylinder to extend into.

10. The device of claim 1 wherein a guard rail is provided on the work platform.

Technical Field

The invention relates to the field of elevators, in particular to a falling-preventing safety lifting device.

Background

The elevator is widely applied in production and life, and in order to meet the requirements of different occasions, the types of the elevator are also various. Compared with a bending stretching arm lifter, the scissor arm lifter has the advantages of small occupied space, low cost and wider application range.

Cut fork arm lift and generally take off and land in vertical direction, drive the folding flexible of cutting the fork arm through the pneumatic cylinder and realize reciprocating of elevating platform, convenient operation, but hydraulic system has its rated load, if the heavy object on the elevating platform surpasss the load capacity of pneumatic cylinder, causes the problem that the lift does not play or fall with higher speed easily, and the potential safety hazard is big.

Disclosure of Invention

The invention mainly solves the technical problem of providing a falling-prevention safety lifting device to solve the problems in the background technology.

In order to solve the technical problems, the invention adopts a technical scheme that: there is provided a fall arrest safety lifting device comprising: the movable base, the scissor arm support and the working platform are arranged, the scissor arm support is arranged between the movable base and the working platform, a first hydraulic cylinder is arranged on the scissor arm support, grooves are formed in two ends of the lower surface of the movable base, a second hydraulic cylinder is fixedly arranged on the upper bottom surface of each groove, a movable wheel is fixedly connected to the output end of the second hydraulic cylinder, supporting rods pointing to the working platform and penetrating through the working platform are arranged at two ends of the movable base, guide sleeves corresponding to the supporting rods are arranged below two sides of the working platform, a third hydraulic cylinder pointing to the guide sleeves is arranged below two sides of the working platform, telescopic rods of the third hydraulic cylinders all extend into the supporting rods in the guide sleeves to limit the positions, a rubber non-slip mat is arranged on the lower surface of the movable base, and anti-slip protrusions are arranged at the bottom.

In a preferred embodiment of the present invention, the movable base is provided with a hydraulic pump connected to the first hydraulic cylinder, the second hydraulic cylinder and the third hydraulic cylinder.

In a preferred embodiment of the invention, a hydraulic oil tank is arranged below the hydraulic pump.

In a preferred embodiment of the invention, the shape of the stud is hemispherical, cylindrical or conical.

In a preferred embodiment of the invention, the shape of the stud is irregular.

In a preferred embodiment of the invention, the anti-skid protrusions are uniformly distributed on the bottom surface of the rubber anti-skid pad.

In a preferred embodiment of the present invention, the anti-skid protrusions are randomly distributed on the bottom surface of the rubber anti-skid pad.

In a preferred embodiment of the present invention, the support rod is a hollow tube, and a plurality of limiting holes corresponding to the telescopic rod of the third hydraulic cylinder are axially disposed on the support rod.

In a preferred embodiment of the present invention, the guide sleeve is provided with a guide hole corresponding to the limiting hole for the extension rod of the third hydraulic cylinder to extend into.

In a preferred embodiment of the present invention, a guard rail is disposed on the work platform.

The invention has the beneficial effects that: according to the anti-falling safety lifting device, the first hydraulic cylinder extends to drive the scissor arm support to ascend and then hover, the telescopic rod extends into the guide sleeve and the support rod to limit by means of extension of the third hydraulic cylinder, the problem that a working platform falls suddenly is solved, and the anti-falling safety lifting device is safer to use.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

FIG. 1 is a schematic structural view of a preferred embodiment of a fall arrest safety lifting device of the present invention;

fig. 2 is a schematic structural view of the guide sleeve and the support rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, an embodiment of the present invention includes:

a fall arrest safety hoist apparatus comprising: remove base 1, scissor arm frame 2 and work platform 3, scissor arm frame 2 sets up between removing base 1 and work platform 3, be provided with first pneumatic cylinder 4 on scissor arm frame 2, remove base 1 lower surface both ends and all set up recess 5, the fixed second pneumatic cylinder 6 that is provided with in last bottom surface of recess 5, the output fixedly connected with of second pneumatic cylinder 6 removes wheel 7, and when needs remove, remove wheel 7 and stretch out recess 5 through second pneumatic cylinder 6, when need not remove, remove wheel 7 and stretch into recess 5 through second pneumatic cylinder 6.

Remove base 1's both ends and be provided with directional work platform 3 and run through work platform 3's bracing piece 8, 3 both sides below of work platform is provided with the uide bushing 9 that corresponds with bracing piece 8, 3 both sides below of work platform is provided with the third pneumatic cylinder 10 of directional uide bushing 9, the telescopic link of third pneumatic cylinder 10 all extends to carry on spacingly in the bracing piece 8 in the uide bushing 9, bracing piece 8 is the hollow tube, and the axial is provided with the spacing hole 11 that the telescopic link of several and third pneumatic cylinder 10 corresponds on the bracing piece 8, set up on the uide bushing 9 and supply the telescopic link of third pneumatic cylinder 10 to stretch into with the guiding hole 12 that spacing hole 11 corresponds, adapt to hovering, convenient operation of work platform 3 at different height position.

Remove and be provided with the hydraulic pump 13 who links to each other with first pneumatic cylinder 4, second pneumatic cylinder 6 and third pneumatic cylinder 10 on the base 1, hydraulic pump 13 below is provided with hydraulic tank 14, makes things convenient for fuel feeding and oil return, and first pneumatic cylinder 4, second pneumatic cylinder 6 and third pneumatic cylinder 10 all with hydraulic pump 13 pipe connection, utilize the work of first pneumatic cylinder 4 of hydraulic pump 13 drive, second pneumatic cylinder 6 and third pneumatic cylinder 10, convenient operation has reduced use cost.

The lower surface of the mobile base 1 is provided with a rubber non-slip pad 15, the bottom of the rubber non-slip pad 15 is provided with a non-slip bump 16, and the shape of the non-slip bump 16 is hemispherical, cylindrical, conical or irregular, and is preferably hemispherical in this embodiment. The anti-slip protrusions 16 are uniformly distributed on the bottom surface of the rubber anti-slip mat 15, and can be randomly distributed on the bottom surface of the rubber anti-slip mat 15, and preferably, the anti-slip protrusions 16 are uniformly distributed on the bottom surface of the rubber anti-slip mat 15 in this embodiment. When the lifting device does not need to be moved, the moving wheel 7 extends into the groove 5 through the second hydraulic cylinder 6, the moving base 1 is in contact with the ground, and the rubber anti-slip pad 15 with the anti-slip protrusions 16 is arranged on the lower surface of the moving base 1, so that the friction force between the moving base 1 and the ground is increased, and the stability and the safety performance of the lifting device in use are improved.

The protective guard 17 is arranged on the working platform 3 and used for protecting personnel and improving the safety of high-altitude operation, the hand push rod 18 is arranged on one side of the movable base 1, and the hand push rod 18 is provided with protective lines, so that the work platform is convenient to push.

The standard parts used in the present solution are all available on the market, all the parts in this document,

the hydraulic pump can be customized according to the description and the accompanying drawings, the specific connection mode of each part adopts conventional means such as bolts, rivets, welding and hinges, and the machinery, the parts, the hydraulic cylinder and the hydraulic pump are of conventional types.

In summary, according to the anti-falling safety lifting device provided by the invention, the first hydraulic cylinder extends to drive the scissor arm support to ascend and then suspend, and the telescopic rod extends to the guide sleeve and the support rod for limiting by using the extension of the third hydraulic cylinder, so that the problem that the working platform falls suddenly is avoided, and the anti-falling safety lifting device is safer to use.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.