CN114538343A

CN114538343A - Portable portal frame

Info

Publication number: CN114538343A
Application number: CN202210085678.9A
Authority: CN
Inventors: 熊国锟; 利小兵; 刘剑; 毛放; 潘建; 易启淋; 范云廷
Original assignee: Guangzhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Current assignee: Guangzhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Priority date: 2022-01-25
Filing date: 2022-01-25
Publication date: 2022-05-27

Abstract

The invention discloses a portable portal frame which comprises a cross rod, a lifting hook and a winding mechanism, wherein two ends of the cross rod are respectively detachably connected with a bracket, and the bottom of the bracket is connected with at least two moving wheels; the winding mechanism is arranged on the cross rod, the output end of the winding mechanism is connected with the lifting hook through a rope, and the winding mechanism is used for drawing or unfolding the rope so as to lift or reduce the height of the lifting hook. The portable automatic feeding device has the advantages of simple structure, convenience in operation and carrying, the labor intensity of operators is effectively reduced, the working efficiency is improved, and the cost is reduced.

Description

Portable portal frame

Technical Field

The invention relates to the technical field of hoisting equipment, in particular to a portable portal frame.

Background

When the underground cable is overhauled, the cable well cover must be opened firstly. At present, the cable well lid is opened mainly in the following two ways: firstly, a crowbar or other tools are generally inserted into an opening hole of a cable well cover, then the cable well cover is raised by a certain angle and lifted by at least two operators in a combined force, so that the operation is very laborious, the feet of the operators are easy to hurt, and potential safety hazards exist; secondly, the crane is adopted to lift the construction site, the method can only be suitable for a site with a wider construction environment, and compared with a site with a narrower and more complex construction environment, the crane cannot drive in, the first manual method can still be adopted, and the construction cost of the method is relatively high. Therefore, there is a need to solve the above problems.

Disclosure of Invention

The present invention is directed to solving the above problems and providing a portable portal frame with simple structure, convenient operation and portability.

The invention realizes the purpose through the following technical scheme: a portable portal frame comprises a cross bar, a lifting hook and a winding mechanism, wherein two ends of the cross bar are respectively detachably connected with a bracket, and the bottom of the bracket is connected with at least two moving wheels; the winding mechanism is arranged on the cross rod, the output end of the winding mechanism is connected with the lifting hook through a rope, and the winding mechanism is used for drawing or unfolding the rope so as to lift or reduce the height of the lifting hook.

Furthermore, the diagonal brace is arranged between the cross bar and the support, a first jack is arranged on the cross bar, a second jack is arranged on the support, and the first jack and the second jack are respectively in plug-in fit with two ends of the diagonal brace; the structure has effectively been consolidated to the diagonal bar, makes the horizontal pole more durable reliable, can hoist heavier object to the cooperation of pegging graft makes easy dismounting between support and horizontal pole.

Furthermore, a lantern ring is arranged at the top end of the support, two ends of the cross rod are respectively matched with the lantern ring in an inserted manner, a locking piece is arranged on the lantern ring, and the locking piece is used for locking the lantern ring on the cross rod; simple structure, the dismouting between support and the horizontal pole of being convenient for.

Further, the lifting hook comprises a connecting part and a limiting part, the top end of the connecting part is connected with the rope, the bottom end of the connecting part is connected with the limiting part, and the connecting part and the limiting part are arranged vertically; make things convenient for the lifting hook to pass the opening hole of cable well lid to hook cable well lid, the operation of being convenient for.

Furthermore, the winding mechanism comprises a power motor and a winding wheel, the power motor is fixedly connected to the middle of the cross rod, the winding wheel is fixedly connected to an output shaft of the power motor, and one end of the rope is connected with the winding wheel; simple structure is convenient for hoist cable well lid.

The winding device further comprises a control mechanism, wherein the control mechanism comprises a control module, a remote controller and a signal lamp, the control module and the signal lamp are respectively arranged on the cross rod, and the winding mechanism, the remote controller and the signal lamp are respectively electrically connected with the control module; accessible remote controller remote control rolling mechanism's work to can long-rangely hoist cable well lid, make operating personnel keep away from the cable well lid that hoists, avoid being injured by a crashing object, guaranteed personnel's safety, and convenient operation.

Furthermore, a wire locking mechanism is arranged on the cross rod and comprises a mounting seat, a clamping piece and a driver, the mounting seat is fixedly connected to the cross rod, the clamping piece is connected to the output end of the driver, the driver is arranged on the mounting seat and electrically connected with the control module, and the driver drives the clamping piece to clamp or release the rope; the rope can be effectively clamped, the operator is prevented from being injured by crashing due to sudden falling, potential safety hazards are reduced, safety performance is improved, and safety of the operator is guaranteed.

Furthermore, an open slot for the rope to pass through is formed in the mounting seat, the clamping pieces are correspondingly arranged on two side walls of the open slot respectively, the clamping pieces are in sliding fit with the mounting seat, and the driver drives the two clamping pieces to approach or move away from each other so as to clamp or release the rope; can effectively ensure the clamping force and ensure the clamping to be firm.

Furthermore, a plurality of anti-skidding teeth are arranged on the side, close to the rope, of the clamping piece; the clamping piece can firmly clamp the rope to avoid slippage.

Furthermore, at least one moving wheel is driven by a wheel hub motor and is electrically connected with the control module; the movable wheels can be driven in an electric mode, the portal frame can be moved conveniently, the labor intensity of operators is reduced, and the movable wheels can be remotely controlled to work through a remote controller, so that the operation is convenient.

The invention has the beneficial effects that: when the cable well cover opening device is used, the cable well cover is hooked after the lifting hook penetrates through an opening hole of the cable well cover, then the coiling mechanism is started, the rope is folded, the cable well cover is lifted and easily opened, at least two moving wheels are connected to the bottom of the support, an operator can easily push the portal frame to move to the placing position, then the coiling mechanism works, the rope is unfolded, the cable well cover is put down, and therefore the cable well cover opening work is completed quickly and easily, the labor intensity of the operator is effectively relieved, and the working efficiency is improved; secondly, because the two supports are detachably connected to the two sides of the cross rod respectively, when facing a relatively narrow or complex working site, the two supports can be disassembled firstly, and then all the components are sequentially carried to the site and then assembled, so that the problem that a crane in the prior art cannot drive in is effectively solved, the labor intensity of operators is effectively reduced, the cost is reduced, and the disassembled portal frame occupies less space and is convenient to carry and store and transport; generally, the portable electric heating device has the advantages of simple structure, convenience in operation and portability, and effectively reduces the labor intensity of operators, improves the working efficiency and reduces the cost.

Drawings

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

FIG. 2 is a disassembled schematic view of the present invention;

FIG. 3 is a schematic front view of the present invention;

FIG. 4 is a schematic view of the construction of the hook of the present invention;

FIG. 5 is a schematic structural view of a thread locking mechanism according to the present invention;

fig. 6 is a schematic view of the working state of the present invention.

The reference numerals are explained below:

1-a cross bar; 11-a first receptacle; 12-avoiding holes; 2-a hook; 21-a connecting part; 22-a limiting part; 3-a winding mechanism; 31-a power motor; 32-a reel; 4-a scaffold; 41-a second receptacle; 42-a collar; 5-moving wheels; 6-a rope; 7-diagonal brace rods; 8-a locking member; 9-a control mechanism; 91-a control module; 92-a remote controller; 93-signal lamps; 10-a wire locking mechanism; 101-a mounting seat; 1011-open slot; 102-a clip; 1021-anti-slip teeth; 103-driver.

Detailed Description

In order to facilitate an understanding of the invention, the invention is described in more detail below with reference to the accompanying drawings and detailed description. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "upper", "lower", "left", "right", "inner", "outer" and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 6, the present embodiment provides a portable portal frame, which includes a cross bar 1, a hook 2 and a winding mechanism 3, wherein two ends of the cross bar 1 are respectively detachably connected with a bracket 4, and the bottom of the bracket 4 is connected with at least two moving wheels 5; winding mechanism 3 installs on horizontal pole 1, connects through rope 6 between winding mechanism 3's the output and the lifting hook 2, and winding mechanism 3 is used for drawing in or expandes rope 6 to promote or reduce the height of lifting hook 2.

An inclined stay bar 7 is arranged between the cross bar 1 and the support 4, a first jack 11 is arranged on the cross bar 1, a second jack 41 is arranged on the support 4, and the first jack 11 and the second jack 41 are respectively matched with two ends of the inclined stay bar 7 in an inserting mode.

The top of support 4 is equipped with the lantern ring 42, and the cooperation of pegging graft with the lantern ring 42 respectively is equipped with retaining member 8 on the lantern ring 42 at the both ends of horizontal pole 1, and retaining member 8 is used for locking the lantern ring 42 on horizontal pole 1.

Specifically, the locking member 8 is a bolt, and the locking member 8 is screwed with the collar 42. During assembly, the two supports 4 are arranged corresponding to the two sides of the cross rod 1 one by one, then the two lantern rings 42 are correspondingly inserted and matched with the end parts of the cross rod 1, and then the locking parts 8 are screwed down, so that the lantern rings 42 are fixed relative to the cross rod 1, the two supports 4 are fixed relative to the cross rod 1, and the supports 4 and the cross rod 1 are rapidly assembled; on the contrary, when disassembling, only need to back unscrew retaining member 8, the relative horizontal pole 1 of lantern ring 42 can the roll-off this moment, alright pull down two supports 4 from horizontal pole 1, accomplish promptly and disassemble, can effectively reduce the shared space of portal frame, be convenient for deposit and transport.

The center of the cross rod 1 is provided with the avoidance hole 12 for the rope 6 to pass through, so that the winding mechanism 3 is conveniently arranged in the middle of the cross rod 1, the stress is balanced, the winding mechanism is firmer and more stable, and the inclination in the hoisting process is avoided. The whole bracket 4 is in a shape of a notch, and a reinforcing rib (shown in reference to fig. 2) is arranged between the top end and the bottom end of the bracket 4 to ensure the firmness of the bracket. The front end and the rear end of the bottom of the support 4 are respectively provided with a movable wheel 5, so that the stress is balanced, and the movement is convenient. Preferably, the two moving wheels 5 at the front end are universal wheels, and the two moving wheels 5 at the rear end are driven by a wheel hub motor and are electrically connected with the control module 91; the two rear moving wheels 5 may be replaced by electric universal wheels.

Preferably, the rope 6 is a steel wire rope or a Kevlar rope, so that the steel wire rope is good in toughness, high in strength, convenient to fold or unfold and longer in service life.

Specifically, the remote controller 92 is an infrared remote controller, the control module 91 is provided with a receiving module corresponding to the infrared remote controller, and the remote controller 92 is provided with a pull-up button and a pull-down button for controlling the power motor 31 to control the forward rotation button, the reverse rotation button, the start button and the stop button of the movable wheel 5. The remote controller 92 may be connected to the control module 91 by a cable connection, and the operation mode of the remote controller 92 is not limited to the above-mentioned key operation mode, and may be a touch screen mode or a combination mode of the two modes.

The lifting hook 2 comprises a connecting portion 21 and a limiting portion 22, the top end of the connecting portion 21 is connected with the rope 6, the bottom end of the connecting portion 21 is connected with the limiting portion 22, and the connecting portion 21 and the limiting portion 22 are arranged vertically.

Specifically, connecting portion 21 extends the setting along vertical direction, and spacing portion 22 extends the setting along the horizontal direction, and the both sides of the relative connecting portion 21 of spacing portion 22 extend to make 2 whole be the font of "the book of the book" of lifting hook, and be less than the size in the hole of opening of cable well lid. When the cable well cover is hooked, the limiting part 22 only needs to pass through the opening hole and then rotate for a certain angle, so that the limiting part 22 is matched with the cable well cover in a stop way, and the cable well cover is hooked; on the contrary, when the cable well cover is put down, the lifting hook 2 can be taken out only by rotating a certain angle and allowing the limiting part 22 to pass through the opening hole.

Preferably, the end of the rope 6 is connected with two lifting hooks 2 to match with an opening hole on the cable well cover; of course, it is also possible to provide only one or another number of hooks 2.

The winding mechanism 3 comprises a power motor 31 and a winding wheel 32, wherein the power motor 31 is fixedly connected to the middle part of the cross rod 1, the winding wheel 32 is fixedly connected to an output shaft of the power motor 31, and one end of the rope 6 is connected with the winding wheel 32.

Still include control mechanism 9, control mechanism 9 includes control module 91, remote controller 92 and signal lamp 93, and control module 91, signal lamp 93 set up respectively on horizontal pole 1, and coiling mechanism 3, remote controller 92 and signal lamp 93 are respectively with control module 91 electric connection. Of course, the control mechanism 9 further includes a power supply module, which can be powered by a storage battery or by connecting a power plug to the power grid.

When the portal frame works, the signal lamp 93 always keeps a flashing state, so that operators and passers-by can be reminded conveniently, and a good warning effect can be achieved; of course, a buzzer or other alarm devices can be added, so that the alarm is convenient to remind and more intuitive.

Be equipped with locking wire mechanism 10 on horizontal pole 1, locking wire mechanism 10 includes mount pad 101, clamping piece 102 and driver 103, and mount pad 101 rigid coupling is on horizontal pole 1, and clamping piece 102 is connected in the output of driver 103, and driver 103 installs on mount pad 101, and driver 103 and control module 91 electric connection, driver 103 order about clamping piece 102 to press from both sides tightly or release rope 6.

An open slot 1011 for the rope 6 to pass through is formed in the mounting seat 101, clamping pieces 102 are correspondingly arranged on two side walls of the open slot 1011 respectively, the clamping pieces 102 are in sliding fit with the mounting seat 101, and the driver 103 drives the two clamping pieces 102 to move close to or away from each other so as to clamp or release the rope 6; the side of the clip 102 adjacent the cord 6 is provided with a plurality of anti-slip teeth 1021.

Specifically, the driver 103 may be one of an electric push rod, an air cylinder and a hydraulic cylinder, preferably, an electric push rod, and is convenient to use without additionally providing a pneumatic system or a hydraulic system.

When the wire locking mechanism 10 actually works, the power motor 31 normally operates, and the control module 91 drives the driver 103 to move, so as to drive the clamping pieces 102 to slide relative to the mounting seat 101, so that the two clamping pieces 102 are far away from each other, and the rope 6 is released; on the contrary, when the power motor 31 stops working, the control module 91 drives the driver 103 to move in the opposite direction, so as to drive the clamping pieces 102 to slide relative to the mounting seat 101, so that the two clamping pieces 102 are close to each other, thereby clamping the rope 6.

The specific working principle of the invention is as follows: when using, according to cable well lid's position, earlier assemble two supports 4 in the both sides of horizontal pole 1, then pass the back in the hole of opening with lifting hook 2 from cable well lid, hook cable well lid again, start winding mechanism 3 afterwards, draw in rope 6 in, thereby promote cable well lid, light open it, promote or the remote control again, make the portal frame remove, light removal is to placing the position, let winding mechanism 3 work again, expand rope 6, put down cable well lid, thereby accomplish cable well lid's the work of opening.

In actual remote control operation, when a 'pull-up' button is pressed, the control module 91 drives the power motor 31 to work after receiving a signal, and the reel 32 rotates to draw the rope 6 in, so that the height of the hook 2 is increased, and the cable well cover is lifted; on the contrary, when the "pull-down" button is pressed, the control module 91 receives the signal and drives the power motor 31 to work, the reel 32 rotates reversely to unfold the rope 6, so that the height of the hook 2 is reduced, and the cable well cover is put down. When the start button is pressed, the control module 91 drives the moving wheel 5 of the hub motor to work after receiving the signal, so that the portal frame moves relative to the ground; on the contrary, when the stop button is pressed, the control module 91 stops the moving wheel 5 of the hub motor after receiving the signal, so that the portal frame stops operating; in the moving process, when the portal frame needs to be moved forwards, after the forward rotation button is pressed, the control module 91 receives a signal and then enables the hub motor to rotate forwards, under the normal condition, the hub motor defaults to be in forward rotation, and in the opposite condition, after the reverse rotation button is pressed, the control module 91 receives the signal and then enables the hub motor to rotate reversely, and the portal frame moves backwards; when the moving direction of the portal frame needs to be controlled more accurately, an operator can manually hold and apply external force to push the portal frame, and the moving direction of the portal frame can be easily changed due to the fact that the two front ends of the moving wheels 5 are universal wheels.

The foregoing shows and describes the general principles, features and advantages of the invention. It will be understood by those skilled in the art that the invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A portable portal frame, its characterized in that: the winding device comprises a cross rod (1), a lifting hook (2) and a winding mechanism (3), wherein two ends of the cross rod (1) are respectively detachably connected with a support (4), and the bottom of each support (4) is connected with at least two moving wheels (5);

the winding mechanism (3) is arranged on the cross rod (1), the output end of the winding mechanism (3) is connected with the lifting hook (2) through a rope (6), and the winding mechanism (3) is used for drawing or unfolding the rope (6) so as to lift or reduce the height of the lifting hook (2).

2. The portable portal frame of claim 1, wherein: the inclined supporting rod (7) is arranged between the cross rod (1) and the support (4), a first insertion hole (11) is formed in the cross rod (1), a second insertion hole (41) is formed in the support (4), and the first insertion hole (11) and the second insertion hole (41) are respectively matched with two ends of the inclined supporting rod (7) in an inserted mode.

3. The portable portal frame of claim 1, wherein: the top of support (4) is equipped with the lantern ring (42), the both ends of horizontal pole (1) respectively with the cooperation of pegging graft of the lantern ring (42), be equipped with retaining member (8) on the lantern ring (42), retaining member (8) be used for with the lantern ring (42) lock in on horizontal pole (1).

4. The portable portal frame of claim 1, wherein: lifting hook (2) include connecting portion (21) and spacing portion (22), the top of connecting portion (21) with rope (6) are connected, the bottom of connecting portion (21) is connected spacing portion (22), connecting portion (21) with spacing portion (22) set up perpendicularly.

5. The portable portal frame of claim 1, wherein: coiling mechanism (3) include motor power (31) and reel (32), motor power (31) rigid coupling in the middle part of horizontal pole (1), reel (32) rigid coupling in on the output shaft of motor power (31), the one end of rope (6) with reel (32) are connected.

6. A portable portal frame according to any one of claims 1 to 5, wherein: still include control mechanism (9), control mechanism (9) include control module (91), remote controller (92) and signal lamp (93), control module (91) signal lamp (93) set up respectively in on horizontal pole (1), spiral mechanism (3) remote controller (92) and signal lamp (93) respectively with control module (91) electric connection.

7. The portable gantry of claim 6, wherein: be equipped with locking line mechanism (10) on horizontal pole (1), locking line mechanism (10) are including mount pad (101), clamping piece (102) and driver (103), mount pad (101) rigid coupling in on horizontal pole (1), clamping piece (102) connect in the output of driver (103), driver (103) install in on mount pad (101), driver (103) with control module (91) electric connection, driver (103) order about clamping piece (102) press from both sides tightly or release rope (6).

8. The portable gantry of claim 7, wherein: the rope clamping device is characterized in that an open slot (1011) for the rope (6) to pass through is formed in the mounting seat (101), the clamping pieces (102) are correspondingly arranged on two side walls of the open slot (1011) respectively, the clamping pieces (102) are in sliding fit with the mounting seat (101), and the driver (103) drives the two clamping pieces (102) to be close to or away from each other so as to clamp or release the rope (6).

9. The portable gantry of claim 7, wherein: the side of the clamping piece (102) close to the rope (6) is provided with a plurality of anti-skidding teeth (1021).

10. The portable gantry of claim 6, wherein: at least one of the moving wheels (5) is driven by a wheel hub motor and is electrically connected with the control module (91).