CN107188078B - Anti-falling device - Google Patents
Anti-falling device Download PDFInfo
- Publication number
- CN107188078B CN107188078B CN201710432633.3A CN201710432633A CN107188078B CN 107188078 B CN107188078 B CN 107188078B CN 201710432633 A CN201710432633 A CN 201710432633A CN 107188078 B CN107188078 B CN 107188078B
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- China
- Prior art keywords
- chain
- fixedly connected
- pulley body
- fixed
- protection
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/02—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms suspended from ropes, cables, or chains or screws and movable along pillars
- B66F7/04—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms suspended from ropes, cables, or chains or screws and movable along pillars hydraulically or pneumatically operated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F17/00—Safety devices, e.g. for limiting or indicating lifting force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
Abstract
The application discloses anticreep device, stand and coaster body including relative setting, the coaster body sets up between the stand of relative setting, coaster body and stand sliding connection, the coaster body is fixed with the protection subassembly, the one end fixed connection that the protection subassembly passes through connecting plate and first chain, a plurality of protection subassemblies and first chain are fixed respectively in the both sides that the connecting plate is relative, the other end and the stand fixed connection of first chain, first chain and sprocket meshing, the sprocket passes through pneumatic cylinder and stand fixed connection, can solve and adopt a plurality of sprocket structures complicacies, the processing cost is high, the installation requirement is than higher, the problem of installation difficulty.
Description
Technical Field
The present disclosure relates generally to the field of medical equipment, specifically to the field of pulleys, and more particularly, to an anti-disengaging device.
Background
The mixing hopper and the transmission case of the hopper mixer are generally driven by the pulleys during transmission, the hopper is lifted by the lifting chains, the hopper is lifted stably for keeping the hopper, two lifting chains are generally adopted, but the lifting chains are very easy to break due to the fact that the weight of materials in the mixing hopper is heavier in many times, when one lifting chain is broken, the hopper cannot be kept stable, when the two lifting chains are broken simultaneously, the hopper falls down easily, the materials in the hopper are spilled easily, safety accidents are caused even in serious situations, and due to the adoption of chain transmission, the chains are loose after long-term use, and therefore the phenomenon that the materials in the hopper spill out can also occur when the mixing hopper is used.
At present, the tackle needs to be driven by two chain wheels matched with two lifting chains, the structure is complex, the processing cost is high, the problem of coaxiality of the chain wheels is also considered when the tackle is installed, the installation requirement is high, and the installation is difficult.
Disclosure of Invention
In view of the above-mentioned drawbacks and deficiencies of the prior art, it would be desirable to provide a trip preventing device that is simple in structure, low in manufacturing cost, and easy to install.
According to the first aspect, the anti-falling device comprises oppositely arranged stand columns and a pulley body, wherein the pulley body is arranged between the oppositely arranged stand columns, the pulley body is connected with the stand columns in a sliding mode, a protection assembly is fixed on the pulley body and fixedly connected with one end of a first chain through a connecting plate, a plurality of protection assemblies and the first chain are respectively fixed on two opposite sides of the connecting plate, the other end of the first chain is fixedly connected with the stand columns, the first chain is meshed with a chain wheel, and the chain wheel is fixedly connected with the stand columns through a hydraulic cylinder.
According to the technical scheme that this application embodiment provided, be connected first chain with a plurality of protection subassemblies respectively through connecting device, first chain and sprocket meshing can adopt single sprocket to come to drive a plurality of protection subassemblies to can drive the coaster body and make a round trip to slide between the stand, can solve and adopt a plurality of sprocket structures complicacies, and the processing cost is high, and the installation requirement is than higher, the problem of installation difficulty.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:
fig. 1 is a schematic structural view of an anti-falling device according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of the anti-separation device according to the embodiment of the present invention;
FIG. 3 is a schematic view of the structure of the anti-drop device of the present invention, in which the sprocket is engaged with the first chain;
fig. 4 is a schematic structural view of the engagement between the sprocket and the first chain of the anti-drop device according to the embodiment of the invention.
Reference numerals:
10-upright column, 11-baffle plate, 12-sliding chute, 13-first roller, 14-second roller, 15-base plate, 16-through hole, 17-first bolt, 18-adjusting plate, 19-second bolt, 20-pulley body, 21-stop block, 22-tension spring, 30-protecting block, 31-first stop portion, 32-second stop portion, 33-connecting portion, 41-first connecting projection, 42-connecting plate, 421-reinforcing portion, 43-second connecting projection, 44-second chain, 51-first chain, 52-chain wheel, 53-hydraulic cylinder, 54-wire wheel and 55-wire groove.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Referring to fig. 1 to 4, the anti-drop device of the present invention includes oppositely disposed columns 10 and a pulley body 20, wherein the pulley body 20 is disposed between the oppositely disposed columns 10, the pulley body 20 is slidably connected to the columns 10, the pulley body 20 is fixed with a protection component, the protection component is fixedly connected to one end of a first chain 51 through a connecting plate 42, a plurality of protection components and the first chain 51 are respectively fixed to two opposite sides of the connecting plate 42, the other end of the first chain 51 is fixedly connected to the columns 10, the first chain 51 is engaged with a sprocket 52, and the sprocket 52 is fixedly connected to the columns 10 through a hydraulic cylinder 53.
In the embodiment of the invention, the number of the upright posts is generally two, the pulley body slides up and down between the upright posts, one end of the first chain is fixedly connected with the connecting plate, the connecting plate is connected with the pulley body through the protection components, one side of the connecting plate can be connected with a plurality of protection components, the other side of the connecting plate can be connected with the first chain, one chain wheel and one first chain can drive the pulley to slide up and down through the connecting plate, the structure is simplified, the manufacturing cost is saved, the coaxiality of the chain wheels does not need to be corrected during installation, the installation difficulty is reduced, the first chain can effectively avoid the interference of the first chain and the baffle movement of the protection components, the safety is improved, the other end and the stand fixed connection of first chain, it is concrete, be fixed with first fixed plate between the stand, first chain and first fixed plate fixed connection, the round pin axle and the first fixed plate of first chain cup joint, and simultaneously, the protection subassembly can prevent when first chain fracture or loose, the coaster takes off down, the operation security of coaster has been improved, the sprocket passes through pneumatic cylinder and stand fixed connection, can be sprocket and piston rod fixed connection, stand and cylinder body fixed connection, or, sprocket and cylinder body fixed connection, stand and piston rod fixed connection, it is optional, the rotatable fixed connection of pneumatic cylinder and stand, conveniently assemble the coaster wholly, the processing degree of difficulty has been reduced, and convenient transportation.
Further, the connecting plate 42 is provided with a first connecting protrusion 41 and a second connecting protrusion 43, the first connecting protrusion 41 and the second connecting protrusion 43 are arranged on two opposite sides of the connecting plate 42, the first connecting protrusion 41 is fixedly connected with the first chain 51, and the plurality of second connecting protrusions 43 are fixedly connected with the protection component through the second chain 44.
In an embodiment of the invention, the connecting device is provided with a first connecting protrusion, a connecting plate and a second connecting protrusion, the first connecting protrusion and the second connecting protrusion are arranged on two opposite sides of the connecting plate, so that the connecting strength between the protection assembly and the first chain can be improved, the first connecting protrusion is fixedly connected with the first chain, specifically, the first connecting protrusion is provided with a round through hole, a pin shaft of the first chain penetrates through the round through hole to realize the fixed connection of the first chain and the connecting plate, when the first chain or the connecting plate breaks down, the first chain can be quickly separated from the connecting plate to replace a component, the second connecting protrusion is fixedly connected with the protection assembly through the second chain, the protection assembly and the connecting plate are connected through the second chain, so that the protection assembly can conveniently act when the first chain breaks down, the round through hole is arranged on the second connecting protrusion, the pin shaft of the second chain penetrates through the round through hole to realize the fixed connection of the second chain and the second connecting protrusion, and when the second chain or the connecting plate breaks down, the second chain can be quickly separated from the connecting plate to replace the component.
Further, the connecting device 40 is provided with at least two second connecting protrusions 43, the protecting assembly is provided with at least two protecting blocks 30, and one protecting block 30 is fixedly connected with one second connecting protrusion 43 through one second chain 44.
In the embodiment of the invention, the connecting device is provided with at least two second connecting bulges, the protection assembly is provided with at least two protection blocks, one protection block is fixedly connected with one second connecting bulge through one second chain, and the connecting plate is fixedly connected with a plurality of protection plates, so that the connecting plate can uniformly bear the acting force of the pulley.
Further, protection piece 30 sets up first backstop portion 31, second backstop portion 32 and connecting portion 33, protection piece 30 cup joints at the round pin epaxially, round pin axle and coaster body 20 fixed connection, connecting portion 33 and second chain 44 fixed connection, coaster body 20 is fixed with dog 21, dog 21 is fixed on the motion route of second backstop portion 32, coaster body 20 detachably is fixed with the one end of extension spring 22, the other end of extension spring 22 and protection piece 30 detachably fixed connection, the fixed connection point and the connecting portion of extension spring 22 and protection piece 30 set up in the both sides of round pin axle, be fixed with baffle 11 along coaster body 20 slip direction interval between the stand 10, baffle 11 sets up on the motion route of protection piece 30.
In the embodiment of the invention, the protection block is provided with a first stop part, a second stop part and a connecting part, the protection block is sleeved on a pin shaft, the protection block can rotate around the pin shaft, the pin shaft is fixedly connected with the pulley body, the pin shaft is horizontally fixed, the connecting part is fixedly connected with a second chain, the second chain is tight under the normal working state, the second chain pulls the connecting part to the vertical direction, the tension spring is tight at the moment, the second stop part is separated from the surface of the stop block, the first stop part is not interfered with the baffle plate, the pulley body is fixedly provided with the stop block, the stop block is fixedly arranged on the motion path of the second stop part, one end of the tension spring is detachably fixed on the pulley body, the other end and the protection piece detachably fixed connection of extension spring, the fixed connection point and the connecting portion setting of extension spring and second protection piece are in the both sides of round pin axle, when first chain is tempered or loose, under the pulling force effect of extension spring, the protection piece rotates round the round pin axle, make second backstop portion hug closely the dog surface, take off the in-process under the coaster simultaneously, be fixed with the baffle along coaster body slip direction interval between the stand, the baffle sets up on the motion path of first backstop portion, the baffle blocks first backstop portion, prevent that the coaster from continuing to take off down, operating personnel's safety has been guaranteed, avoid the coaster to cause further damage.
Further, the first coupling protrusions 41 are disposed at the center of one side of the coupling plate 42, the second coupling protrusions 43 are disposed at the other side of the coupling plate 42 at equal intervals, and the second coupling protrusions are disposed at both ends of the other side of the coupling plate, respectively.
In the embodiment of the invention, the first connecting bulges are arranged at the center of one side of the connecting plate, and the second connecting bulges are arranged at the other side of the connecting plate at equal intervals, so that the stress on the connecting plate is uniform, and the service life of the connecting plate is prolonged.
Further, the connecting plate 42 is provided with a reinforcing portion 421, and the reinforcing portion 421 is provided between two adjacent second connecting protrusions 43.
In the embodiment of the invention, the connecting plate is provided with the reinforcing part, the reinforcing part is arranged between two adjacent second connecting bulges, the stress point of the connecting plate is the position of the second connecting bulge, the second connecting bulge is subjected to downward tension in the normal working process of the pulley, and the reinforcing part is arranged between two adjacent second connecting bulges, so that the deformation of the connecting plate can be prevented.
Further, the wire winding device comprises a wire winding wheel 54, wherein the wire winding wheel 54 is coaxially connected with the chain wheel 52, and a wire groove 55 is formed in the wire winding wheel 54.
In the embodiment of the invention, the electric equipment needs to be arranged in the mixing hopper, the wiring needs to be carried out in the pulley, the wire wheel can enable the cable to move up and down along with the pulley, different wire lengths are provided for different heights, and the problem that the equipment cannot normally operate due to the fact that the cable is too long or too short is avoided.
Further, the upright post 10 is provided with a sliding groove 12, the pulley body 20 is coupled with a first roller 13, and the first roller 13 rolls on two inner side surfaces opposite to the sliding groove 12.
In the embodiment of the invention, the upright post is provided with the sliding groove, the pulley body is coupled with the first rollers, the first rollers roll on the surfaces of two opposite inner side surfaces of the sliding groove, so that the first rollers can be prevented from rolling to the outside of the upright post, but not only two pairs of first rollers are arranged, the two pairs of first rollers are arranged in parallel, and each pair of first rollers respectively move in the sliding grooves of the two opposite upright posts, so that the stability of the pulley movement is improved, and the first rollers are prevented from separating from the sliding grooves.
Further, a second roller 14 is adjustably fixed to the carriage body 20, the second roller 14 rolls on the surface of the bottom surface of the sliding groove 12, and the surface of the second roller 14 is exposed on the side of the first roller 13 away from the carriage body 20.
In the embodiment of the invention, the second roller is adjustably fixed on the pulley, the second roller can be adjusted along the axial direction of the first roller, the second roller rolls on the surface of the bottom surface of the sliding groove, the side surface of the first roller or the pulley is prevented from contacting with the bottom surface of the sliding groove, the abrasion of the first roller is avoided, the surface of the second roller is exposed out of one side of the first roller far away from the pulley, and the service lives of the first roller and the pulley are prolonged.
Further, a base plate 15 is fixed on the pulley body 20, a through hole 16 is formed in the base plate 15, an adjusting plate 18 is screwed on the first bolt 17 after penetrating through the through hole 16, the adjusting plate 18 is provided with a waist hole, a second bolt 19 penetrates through the waist hole and is screwed with the base plate 15, and a second roller 14 is fixedly connected to one side, far away from the first bolt 17, of the adjusting plate 18.
In the embodiment of the invention, the distance between the second roller and the bottom surface of the sliding chute is adjusted by the position of the second bolt in the waist hole and the length of the first bolt penetrating through the through hole, so that the adjustment can be carried out according to actual conditions, and the transportation and the assembly are convenient.
The foregoing description is only exemplary of the preferred embodiments of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (6)
1. An anti-drop device is characterized by comprising oppositely arranged stand columns, a pulley body and a first chain, wherein the pulley body is arranged between the oppositely arranged stand columns, the pulley body is in sliding connection with the stand columns, a protection assembly is fixed on the pulley body and is fixedly connected with one end of the first chain through a connecting plate, the protection assembly and the first chain are respectively fixed on two opposite sides of the connecting plate, the other end of the first chain is fixedly connected with the stand columns, the first chain is meshed with a chain wheel, and the chain wheel is fixedly connected with the stand columns through a hydraulic cylinder;
the connecting plate is provided with a first connecting bulge and two second connecting bulges, the first connecting bulge and the second connecting bulge are arranged on two opposite sides of the connecting plate, the first connecting bulge is fixedly connected with the first chain, and the two second connecting bulges are fixedly connected with the protection component through two second chains;
the protection assembly is provided with two protection blocks, and a single protection block is fixedly connected with a single second connecting bulge through a single second chain;
the first connecting bulge is arranged in the center of one side of the connecting plate, the two second connecting bulges are arranged on the other side of the connecting plate, and the second connecting bulges are respectively arranged at two ends of the other side of the connecting plate;
the connecting plate is provided with a reinforcing part, and the reinforcing part is arranged between the two second connecting bulges.
2. The anti-dropping device according to claim 1, wherein the protection block is provided with a first blocking portion, a second blocking portion and a connecting portion, the protection block is sleeved on a pin shaft, the pin shaft is fixedly connected with the pulley body, the connecting portion is fixedly connected with the second chain, the pulley body is fixedly provided with a stop block, the stop block is fixed on a movement path of the second blocking portion, one end of a tension spring is detachably fixed on the pulley body, the other end of the tension spring is detachably and fixedly connected with the protection block, a fixed connection point of the tension spring and the protection block and the connecting portion are arranged on two sides of the pin shaft, a baffle is fixed between the upright posts at intervals along a sliding direction of the pulley body, and the baffle is arranged on the movement path of the first blocking portion.
3. The anti-drop device according to claim 1, comprising a reel coaxially connected with the sprocket, the reel being provided with a wire groove.
4. The anti-drop device according to claim 1, wherein the column is provided with a sliding groove, and the pulley body is coupled with a first roller which rolls on two inner side surfaces opposite to the sliding groove.
5. The anti-separation device according to claim 4, wherein a second roller is adjustably fixed to the carriage body, the second roller rolling on a surface of the bottom surface of the chute, the second roller surface exposing a side of the first roller away from the carriage body.
6. The anti-drop device according to claim 5, wherein a base plate is fixed on the pulley body, the base plate is provided with a through hole, a first bolt penetrates through the through hole and is in threaded connection with an adjusting plate, the adjusting plate is provided with a waist hole, a second bolt penetrates through the waist hole and is in threaded connection with the base plate, and a second roller is fixedly connected to one side, away from the first bolt, of the adjusting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710432633.3A CN107188078B (en) | 2017-06-09 | 2017-06-09 | Anti-falling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710432633.3A CN107188078B (en) | 2017-06-09 | 2017-06-09 | Anti-falling device |
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| Publication Number | Publication Date |
|---|---|
| CN107188078A CN107188078A (en) | 2017-09-22 |
| CN107188078B true CN107188078B (en) | 2023-03-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710432633.3A Active CN107188078B (en) | 2017-06-09 | 2017-06-09 | Anti-falling device |
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| CN (1) | CN107188078B (en) |
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| JPS52153562A (en) * | 1976-06-15 | 1977-12-20 | Toyo Umpanki Co Ltd | Device for balancing chain tension of greight handling machine |
| SE7810648L (en) * | 1978-10-12 | 1980-04-13 | Stockamoellan Ab | EQUIPMENT FOR FORKLIFT TRUCK |
| US4421208A (en) * | 1981-02-09 | 1983-12-20 | Clark Equipment Company | Upright fork lift truck |
| US4432438A (en) * | 1981-02-09 | 1984-02-21 | Clark Equipment Company | Upright for lift truck |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107188078A (en) | 2017-09-22 |
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