CN218058187U

CN218058187U - Mechanical anti-falling safety protection device

Info

Publication number: CN218058187U
Application number: CN202220681363.6U
Authority: CN
Inventors: 李辉龙; 张洋; 鲁家阳; 顾洋; 张弛; 杨世林; 曾家伟; 朱伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-03-28
Filing date: 2022-03-28
Publication date: 2022-12-16
Anticipated expiration: 2032-03-28

Abstract

The utility model discloses a machinery prevents weighing down safety arrangement relates to lifting machinery technical field, including unable adjustment base, unable adjustment base top both sides limit portion symmetrical welding has the dead lever, dead lever top fixed mounting has fixed roof, fixed roof top both sides limit portion all installs the motor, fixed roof top both sides limit portion all welds has a plurality of mounts, the inside rotation of mount near fixed roof top limit portion department installs the sprocket No. one, the inside rotation of mount near fixed roof top middle part department installs the sprocket No. two, the chain is installed to sprocket and No. two sprocket surface one sides, no. two sprocket and sprocket one side mid-mounting have the dwang, the utility model discloses have the effect that prevents that the stay cord fracture and lead to the elevating platform to fall when using, avoid continuing to weigh down the crane and cause certain danger, improved the crane factor of safety when using, further promoted the availability factor of crane, it is more convenient to make people when using.

Description

Mechanical anti-falling safety protection device

Technical Field

The utility model belongs to the technical field of the lifting machine technique and specifically relates to a machinery prevents weighing down safety arrangement is related to.

Background

The lifting machine is a mechanical device driven by a hydraulic cylinder or a chain to lift, and is mainly used for high-altitude operation and lifting and transporting articles. The most safe and reliable lifting machine is a hydraulic lifting machine, is driven to lift by a hydraulic system, and can operate a manual valve to slowly fall. Elevators play an important role in many industries.

And the elevating machinery that goes up and down through chain drive needs to be connected with the elevating platform through the stay cord when using, through rolling up the stay cord control elevating platform up-and-down motion, nevertheless the stay cord causes the fracture easily after using the certain time, and then makes the phenomenon that the elevating platform appears falling easily, makes people have certain potential safety hazard when the operation, has reduced elevating machinery's availability factor.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a machinery prevents weighing down safety arrangement has the effect that prevents that the stay cord fracture from leading to the elevating platform to fall when using.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a safety arrangement is prevented weighing down by machinery, includes unable adjustment base, unable adjustment base top both sides limit portion symmetrical welding has the dead lever, dead lever top fixed mounting has the crown plate, the motor is all installed to crown plate top both sides limit portion, a plurality of mounts have all been welded to crown plate top both sides limit portion, are close to the inside rotation of mount of crown plate top limit portion department installs the sprocket No. one, is close to the inside rotation of mount of crown plate top middle part department installs No. two sprockets, the chain is installed to No. one sprocket and No. two sprocket surface one sides, no. two sprockets and sprocket one side mid-mounting have the dwang, dwang surface one side symmetrical cover is equipped with the rolling stand, is located the inside winding of rolling stand of No. one side of sprocket has the stay cord No. two, is located the inside winding of rolling stand of No. two sprocket one sides has the stay cord, the crane is installed to the stay cord bottom, crane both sides limit portion symmetrical welding has the snap ring, no. two stay cord bottom-mounting have the link, the equal movable mounting in both ends limit portion has the slip fastener around the link.

Preferably, the cover of slip card surface one side top department is equipped with one number spring my, slip card surface one side is located spring bottom department cover and is equipped with the baffle No. one, slip card surface one side is close to top department and link up and has seted up spacing hole, link top limit portion symmetry has seted up the through-hole, and the standing groove has been seted up to through-hole inner wall one side symmetry, standing groove inner wall one side link up and has seted up the round hole, the inside slidable mounting of standing groove has the gag lever post, gag lever post surface one side is located the inside department cover of standing groove and is equipped with No. two springs, the welding of gag lever post surface one side limit portion has No. two baffles.

Preferably, a clamping hole is formed in the middle of one side of the clamping ring, the sliding clamping piece is located inside the clamping hole, and the sliding clamping piece and the clamping ring are clamped mutually.

Preferably, no. two baffle diameters are greater than standing groove inner wall one side opening part internal diameter, no. two baffles are located the standing groove inside, no. two baffle diameters are greater than No. two spring external diameters, no. two baffles and standing groove gomphosis each other.

Preferably, the diameter of the limiting rod is smaller than the inner diameter of the limiting hole, one side edge part of the limiting rod is located in the limiting hole, and the limiting rod is matched with the limiting hole.

Preferably, the crane is characterized in that fixing blocks are symmetrically welded on two side portions of the crane, a through hole is formed in the middle of the top end of each fixing block, the fixing rod is located inside the through hole, and the fixing blocks are mutually matched with the fixing rod.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the utility model discloses at the in-process that uses, make a stay cord and No. two stay cords carry out the rolling under the effect of a sprocket and No. two sprockets through starter motor, and then control crane and link slide from top to bottom simultaneously, when a stay cord fracture leads to the crane tenesmus, the snap ring can carry out the joint with the slip fastener, and then make No. two stay cords support the crane again, avoid the crane to continue the tenesmus to cause certain danger, the factor of safety of crane when using has been improved, the availability factor of crane has further been promoted, it is more convenient to make people when using.

2. The utility model discloses at the in-process that uses, install inside the link under the effect of a spring through making the slip fastener, the slip fastener is the lapse when the atress, when spacing hole slides to the standing groove opening part, the gag lever post spacing downthehole portion of advancing under the effect of No. two springs, and then keep the slip fastener inside being in stable state at the link, improved the stability of slip fastener when using.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic side structure view of the lifting frame of the present invention;

fig. 3 is a schematic top view of the top fixing plate of the present invention;

fig. 4 is a schematic view of the internal structure of the middle connection frame of the present invention.

Reference numerals: 1. a fixed base; 2. a fixing rod; 3. fixing a top plate; 4. a motor; 5. a fixed mount; 6. a first sprocket; 7. a chain; 8. a second sprocket; 9. rotating the rod; 10. a winding frame; 11. a first pull rope; 12. a lifting frame; 13. a fixed block; 14. a snap ring; 15. a second pull rope; 16. a connecting frame; 17. a slide fastener; 18. a first spring; 19. a first baffle plate; 20. a limiting hole; 21. a placement groove; 22. a limiting rod; 23. a second spring; 24. and a second baffle plate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1-4, for the mechanical anti-falling safety protection device disclosed by the utility model, the mechanical anti-falling safety protection device comprises a fixed base 1, fixed rods 2 are symmetrically welded at the two side edges of the top end of the fixed base 1, a fixed top plate 3 is fixedly installed at the top end of the fixed rods 2, motors 4 are installed at the two side edges of the top end of the fixed top plate 3, a plurality of fixing frames 5 are welded at the two side edges of the top end of the fixed top plate 3, a first chain wheel 6 is rotatably installed inside the fixing frame 5 near the top end edge of the fixed top plate 3, a second chain wheel 8 is rotatably installed inside the fixing frame 5 near the middle part of the top end of the fixed top plate 3, a chain 7 is installed at one side of the outer surfaces of the first chain wheel 6 and the second chain wheel 8, a rotating rod 9 is installed at the middle part of one side of the first chain wheel 6, a winding frame 10 is symmetrically sleeved at one side of the outer surface of the rotating rod 9, a first pull rope 11 is wound inside the winding frame 10 at one side of the first chain wheel 6, A second pull rope 15 is wound inside a winding frame 10 positioned on one side of a second chain wheel 8, a lifting frame 12 is arranged at the bottom end of a first pull rope 11, snap rings 14 are symmetrically welded on the two side edge parts of the lifting frame 12, a connecting frame 16 is arranged at the bottom end of the second pull rope 15, sliding clamping pieces 17 are movably arranged at the front and back end edge parts of the connecting frame 16, a clamping hole is formed in the middle part of one side of each snap ring 14, each sliding clamping piece 17 is positioned inside the clamping hole, each sliding clamping piece 17 is mutually clamped with the snap ring 14, fixed blocks 13 are symmetrically welded on the two side edge parts of the lifting frame 12, a through hole is formed in the middle part of the top end of each fixed block 13, each fixed block 2 is positioned inside the through hole, the fixed blocks 13 are mutually matched with the fixed rods 2, in the utility model, a motor 4 is started to drive the first chain wheel 6 close to the edge part of the fixed top plate 3 to rotate, and the input end of a power supply of the motor 4 is electrically connected with the output end of an external power supply, and then the first chain wheel 6 drives the chain 7 and the second chain wheel 8 to rotate, so that the four rotating rods 9 synchronously rotate, the rolling frames 10 roll and unfold the first pulling rope 11 and the second pulling rope 15, the first pulling rope 11 drives the lifting frame 12 to slide up and down, the second pulling rope 15 drives the connecting frame 16 to synchronously slide along with the lifting frame 12, meanwhile, the sliding clamping piece 17 is placed in the clamping ring 14 and is suspended, the sliding clamping piece 17 synchronously moves along with the vertical movement of the clamping ring 14, when the first pulling rope 11 is broken, the lifting frame 12 can incline and drives the clamping ring 14 to synchronously incline, the clamping ring 14 moves and is mutually clamped with the sliding clamping piece 17, the sliding clamping piece 17 can further move the inclined corner of the lifting frame 12 under the action of the second pulling rope 15, the lifting frame 12 is kept in a stable state and does not continuously incline and drop, the second pulling rope 15 can support the lifting frame 12 again, certain danger caused by continuous dropping of the lifting frame 12 is avoided, the safety factor of the lifting frame 12 in use is improved, the use efficiency of the lifting frame 12 is further improved, and the lifting frame is more convenient and more convenient for people.

Referring to fig. 4, and the top of the outer surface of the sliding fastener 17 is covered with a spring 18, the outer surface of the sliding fastener 17 is covered with a baffle 19 at the bottom of the spring 18, the outer surface of the sliding fastener 17 is covered with a limiting hole 20 near the top, the top of the connecting frame 16 is symmetrically provided with a through hole, the inner wall of the through hole is symmetrically provided with a placing groove 21, the inner wall of the placing groove 21 is provided with a round hole at one side, a limiting rod 22 is slidably mounted inside the placing groove 21, the outer surface of the limiting rod 22 is covered with a spring 23 at one side inside the placing groove 21, the outer surface of the limiting rod 22 is welded with a baffle 24 at one side, the diameter of the baffle 24 is larger than the inner wall of the placing groove 21 at one side, the baffle 24 is located inside the placing groove 21, the diameter of the baffle 24 is larger than the outer diameter of the spring 23, the baffle 24 is mutually embedded with the placing groove 21, the diameter of the limiting rod 22 is smaller than the inner diameter of the limiting hole 20, the side of the limiting rod 22 is located inside the limiting hole 20, the limiting rod 22 is mutually adapted with the limiting hole 20, in the utility model, the sliding fastener 17 slides downwards along the connecting frame 16 under the action of the snap ring 14, so that the first spring 18 is in a contracted state under the resistance of the first baffle plate 19, when the limiting hole 20 slides to the middle position of the connecting frame 16, the side wall of the sliding clamping piece 17 does not extrude the limiting rod 22 any more, so that the limiting rod 22 slides towards the inside of the limiting hole 20 under the action of the second spring 23, and then two limiting rods 22 limit and support the sliding clamping piece 17, so that the sliding clamping piece 17 is kept in a stable state in the connecting frame 16, the stability of the sliding clamping piece 17 when being pulled by force is further improved, and the pulling effect of the second pull rope 15 on the lifting frame 12 is further enhanced.

The implementation principle of the embodiment is as follows: the utility model discloses when using, drive sprocket 6 near 3 limit portions of fixed roof through starter motor 4 and rotate, the input of motor 4 power and external power source's output electric connection, and then make sprocket 6 drive chain 7 and No. two sprocket 8 rotate, make four dwang 9 rotate in step, and then make a plurality of rolling frame 10 carry out the rolling and expand to stay cord 11 and No. two stay cords 15, further make stay cord 11 drive crane 12 and slide from top to bottom, make No. two stay cords 15 drive link 16 slide in step along with crane 12, place slide fastener 17 inside snap ring 14 simultaneously and keep unsettled, make slide fastener 17 along with snap ring 14 up-and-down motion and synchronous motion, when a stay cord 11 splits, crane 12 can produce the slope and drive snap ring 14 and incline in step, make snap ring 14 move and with slide fastener 17 mutual joint, and then make slide fastener 17 move the corner of crane 12 slope under the effect of No. two stay cord 15, and keep being in steady state No. 12 no longer decline, and then make people's 12 efficiency of using of lifting frame 12 more convenient when having avoided the lifting frame to support again, the efficiency of people's use more.

Further, when the sliding clamping piece 17 is clamped with the clamping ring 14, the sliding clamping piece 17 slides downwards along the connecting frame 16 under the action of the clamping ring 14, the first spring 18 is in a contraction state under the resisting of the first baffle 19, when the limiting hole 20 slides to the middle position of the connecting frame 16, the side wall of the sliding clamping piece 17 does not extrude the limiting rod 22 any more, the limiting rod 22 slides towards the inside of the limiting hole 20 under the action of the second spring 23, and then the two limiting rods 22 limit and support the sliding clamping piece 17, so that the sliding clamping piece 17 is kept in a stable state inside the connecting frame 16, the stability of the sliding clamping piece 17 in the forced pulling process is further improved, and the pulling effect of the second pull rope 15 on the lifting frame 12 is further enhanced.

The embodiment of this embodiment is the preferred embodiment of the present invention, not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a machinery prevents weighing down safety arrangement, includes unable adjustment base (1), its characterized in that: the chain transmission mechanism is characterized in that fixing rods (2) are symmetrically welded on two side edge portions of the top end of a fixing base (1), a fixing top plate (3) is fixedly mounted on the top end of the fixing top plate (3), motors (4) are mounted on two side edge portions of the top end of the fixing top plate (3), a plurality of fixing frames (5) are welded on two side edge portions of the top end of the fixing top plate (3), a chain wheel (6) is mounted close to the fixing frame (5) at the top end of the fixing top plate (3) in an internal rotating mode, a chain wheel (8) is mounted on one side of the outer surface of the chain wheel (6) and the chain wheel (8) in an internal rotating mode, a rotating rod (9) is mounted on one side of the chain wheel (8) and the chain wheel (6), a winding frame (10) on one side of the outer surface of the rotating rod (9) is symmetrically sleeved with a winding frame (10), a pulling rope (11) is mounted on the internal winding frame (10) on one side of the chain wheel (6), a pulling rope (11) is mounted on one side, a pulling rope (11) is connected with a lifting frame (12) and a clamping ring (16) connected with a pulling rope (16) at the bottom end of the lifting frame (12), the edges of the front end and the rear end of the connecting frame (16) are movably provided with sliding clamping pieces (17).

2. A mechanical fall arrest safety arrangement according to claim 1, characterised in that: sliding fastener (17) surface one side top department cover is equipped with spring (18) No. one, sliding fastener (17) surface one side is located spring (18) bottom department cover and is equipped with baffle (19) No. one, sliding fastener (17) surface one side is close to top department and has link up and seted up spacing hole (20), the through-hole has been seted up to link (16) top limit portion symmetry, and standing groove (21) have been seted up to through-hole inner wall one side symmetry, standing groove (21) inner wall one side has link up and has seted up the round hole, standing groove (21) inside slidable mounting has gag lever post (22), gag lever post (22) surface one side is located standing groove (21) inside department cover and is equipped with No. two spring (23), gag lever post (22) surface one side limit portion welding has No. two baffle (24).

3. A mechanical fall arrest safety protection arrangement according to claim 1, in which: clamping holes are formed in the middle of one side of the clamping ring (14), the sliding clamping piece (17) is located inside the clamping holes, and the sliding clamping piece (17) is clamped with the clamping ring (14) mutually.

4. A mechanical fall arrest safety protection arrangement according to claim 2, in which: the diameter of the second baffle (24) is larger than the inner diameter of an opening at one side of the inner wall of the placing groove (21), the second baffle (24) is positioned inside the placing groove (21), the diameter of the second baffle (24) is larger than the outer diameter of the second spring (23), and the second baffle (24) and the placing groove (21) are mutually embedded.

5. A mechanical fall arrest safety protection arrangement according to claim 2, in which: the diameter of the limiting rod (22) is smaller than the inner diameter of the limiting hole (20), one side edge of the limiting rod (22) is located inside the limiting hole (20), and the limiting rod (22) is matched with the limiting hole (20) mutually.

6. A mechanical fall arrest safety protection arrangement according to claim 1, in which: crane (12) both sides limit portion symmetrical welding has fixed block (13), the perforating hole has been seted up at fixed block (13) top middle part, dead lever (2) are located inside the perforating hole, fixed block (13) and dead lever (2) mutual adaptation.