CN218560990U

CN218560990U - Safety lock for lifter

Info

Publication number: CN218560990U
Application number: CN202223073784.XU
Authority: CN
Inventors: 陈海滨
Original assignee: Yingkou Redberg Automobile Maintenance Equipment Co ltd
Current assignee: Yingkou Redberg Automobile Maintenance Equipment Co ltd
Priority date: 2022-11-21
Filing date: 2022-11-21
Publication date: 2023-03-03
Anticipated expiration: 2032-11-21

Abstract

The utility model discloses a safety lock for machine of lifting belongs to the machine of lifting technical field, including base, slope, inner support arm A, base and top cap both ends just install the slope, and base top one side is connected with outer support arm A through the support rotation, and outer support arm A is connected with inner support arm A through the pivot rotation, and the base top is provided with locking mechanical system, and the base top is provided with buckle mechanism. The utility model discloses, through locking mechanical system, can lift the completion back at the device, lock the device, fixture block B blocks fixture block A for the device is every to be lifted one section and all can be carried on spacingly, when avoiding hydraulic telescoping rod to damage suddenly, the device shrink to the bottom, cause the damage of personnel and apparatus, when the constriction device, also can send out the police dispatch newspaper simultaneously, personnel around the suggestion, through buckle mechanism, further with the device locking, avoid hydraulic telescoping rod shrink, influence the device and use.

Description

Safety lock for lifter

Technical Field

The utility model belongs to the technical field of the machine of lifting, specifically be a safety lock for machine of lifting.

Background

A scissor lift is an automobile repairing machine used in the automobile repairing industry. The lifting is driven by a hydraulic system, so the hydraulic lifting machine plays a vital role in automobile maintenance, and an internal self-locking mechanism is an important mechanism for ensuring the safe use of the automobile maintenance.

The novel scissor type lifter electric unlocking mechanism comprises lifter shearing arms on two sides of the scissor type lifter, the lower ends of the lifter shearing arms are movably connected with a safety lock cover through shearing arm connecting shafts, and the novel scissor type lifter electric unlocking mechanism is characterized in that an electromagnetic valve is fixed on the left side of the safety lock cover, the upper end of the electromagnetic valve is fixed on an electromagnetic valve cover connected with the safety lock cover through bolts, and the lower end of an electromagnetic valve core is in contact with a bottom plate; the coil of the electromagnetic valve is communicated with a control circuit in an electrical control box of the scissor lift by a cable, and the scissor lift has the effects of taking electricity as power, having simple structure and saving equipment resources;

the device is when locking, and the locking mode is comparatively simple for the device has the slip risk, and the device relies on the staff to warn when contracting, and efficiency is lower, and the device adopts once locking, and is comparatively simple, slides easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the above problems, a safety lock for a lifting machine is provided.

The utility model adopts the technical scheme as follows: a safety lock for a lift comprising: the lifting device comprises a base, a slope, an inner support arm A, an outer support arm A, an inner support arm B, an outer support arm B and a top cover, wherein the slope is installed at two ends of the base and the top cover, the outer support arm A is connected to one side of the top of the base through a support in a rotating mode, the inner support arm A is connected to the outer support arm A through a rotating shaft in a rotating mode, the inner support arm B and the outer support arm B are connected to the inner support arm A and the outer support arm A through rotating shafts in a rotating mode respectively, the inner support arm B and the outer support arm B are connected with each other in a rotating mode, one end of the inner support arm B and one end of the outer support arm B are connected with the top cover in a rotating mode, a locking mechanism capable of locking the inner support arm A and providing power to place the inner support arm A to slide is arranged above the base, and a buckling mechanism capable of preventing the lifting arms from contracting after lifting is completed is arranged above the base.

Wherein, locking mechanical system includes: connecting block, footboard, press the switch, audible and visual alarm, protection box, fixture block A, installation piece, fixture block B, the welding of base top one side has protection box, interior support arm A bottom rotates through the pivot to be connected with the slider, and the welding of slider bottom has fixture block A, and the slider of interior support arm A bottom and the inside slide rail sliding connection of protection box, the base is inside to have the installation piece through spring and spacing post elastic sliding connection, the welding of installation piece top has fixture block B, the inside slide rail sliding connection that has the connecting block through the base, connecting block one side integration is provided with the footboard, the base bottom is located the footboard below and installs press the switch, the base top is located protection box one side and installs audible and visual alarm, and the slide rail sliding connection through pivot and slider and protection box of interior support and connecting block of interior support arm A bottom are connected through support and connecting block.

Wherein, buckle mechanism includes: fixed box, slider, electric telescopic handle, hydraulic telescoping rod, hydraulic pressure auxiliary arm, it even has fixed box to rotate through the pivot between the outer support arm A, fixed box is inside to have the slider through slide rail sliding connection, fixed box is inside to be located the slider top and installs electric telescopic handle, fixed box internally mounted has hydraulic telescoping rod, it is connected with hydraulic pressure auxiliary arm to rotate between the interior support arm B, and slider and hydraulic telescoping rod all rotate with hydraulic pressure auxiliary arm and are connected, and the integration of slider top is provided with the rack, and electric telescopic handle's flexible end bottom integration is provided with tooth, the rack at slider top and the tooth meshing of the flexible end bottom of electric telescopic handle.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, through locking mechanical system, can lift the completion back at the device, lock the device, fixture block B blocks fixture block A for the device every lifts one section and can all carry on spacingly, when avoiding hydraulic telescoping rod to damage suddenly, the device contracts to the bottom, causes the damage of personnel and apparatus, and when the constriction device, also can send out the police dispatch newspaper simultaneously, suggestion personnel around.

2. The utility model discloses in, through buckle mechanism, further with the device locking, avoid the shrink of hydraulic telescoping rod, influence the device and use.

Drawings

FIG. 1 is a schematic diagram of the three-dimensional structure of the present invention;

FIG. 2 is a schematic diagram of the side structure of the present invention;

fig. 3 is a schematic diagram of an enlarged structure at a in fig. 2 according to the present invention;

FIG. 4 is a schematic diagram of the three-dimensional structure of the middle fixing box of the present invention;

fig. 5 is a schematic diagram of the side structure of the middle fixing box of the present invention.

The labels in the figure are: 1. a base; 101. connecting blocks; 1011. a pedal; 102. a push switch; 103. an audible and visual alarm; 104. a slope; 2. a protective box; 3. an inner support arm A; 301. a clamping block A; 4. mounting blocks; 401. a clamping block B; 5. an outer support arm A; 501. a fixing box; 5011. a slider; 5012. an electric telescopic rod; 502. a hydraulic telescopic rod; 5021. a hydraulic auxiliary arm; 6. an inner support arm B; 601. an outer support arm B; 7. and a top cover.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model discloses in:

referring to fig. 1-5, a safety lock for a lifting machine, comprising: the lifting device comprises a base 1, a slope 104, an inner support arm A3, an outer support arm A5, an inner support arm B6, an outer support arm B601 and a top cover 7, wherein the slope 104 is installed at two ends of the base 1 and the top cover 7, one side of the top of the base 1 is rotatably connected with the outer support arm A5 through a support, the outer support arm A5 is rotatably connected with the inner support arm A3 through a rotating shaft, the inner support arm A3 and the outer support arm A5 are respectively rotatably connected with the inner support arm B6 and the outer support arm B601 through rotating shafts, the inner support arm B6 and the outer support arm B601 are mutually rotatably connected, one end of the inner support arm B6 and one end of the outer support arm B601 are rotatably connected with the top cover 7, a locking mechanism capable of locking the inner support arm A3 and providing assistance to place the inner support arm A3 in a sliding mode after lifting is completed is arranged above the base 1, and a buckling mechanism capable of preventing the lifting arm from contracting after lifting is completed is arranged above the base 1.

Wherein, locking mechanical system includes: the sound and light alarm device comprises a connecting block 101, a pedal 1011, a press switch 102, a sound and light alarm device 103, a protective box 2, a fixture block A301, an installation block 4 and a fixture block B401, wherein the protective box 2 is welded on one side of the top of a base 1, a slide block is rotatably connected to the bottom of an inner support arm A3 through a rotating shaft, the fixture block A301 is welded on the bottom of the slide block, the slide block at the bottom of the inner support arm A3 is slidably connected with a slide rail inside the protective box 2, the installation block 4 is elastically and slidably connected inside the base 1 through a spring and a limiting column, the fixture block B401 is welded on the top of the installation block 4, the connecting block 101 is slidably connected inside the base 1 through the slide rail, the pedal 1011 is integrally arranged on one side of the connecting block 101, the press switch 102 is arranged below the pedal 1011 at the bottom of the base 1, the sound and light alarm device 103 is arranged on one side of the protective box 2 at the top of the base 1, the bottom of the inner support arm A3 is slidably connected with the slide rail inside the protective box 2 through the rotating shaft and the slide rail, the bottom of the installation block 4 is connected with the connecting block 101 through a bracket, when the device is lifted, the inner support arm A3 moves towards the center of the device, so that the fixture block A301 at the bottom of the inner support arm A moves along with the inner support arm A, when the inclined plane at the bottom of the fixture block A301 collides with the inclined plane at the top of the fixture block B401, the fixture block B401 is pressed down by the fixture block A301, the fixture block B401 drives the installation block 4 to move downwards, so that the inner support arm A3 can normally move, when the fixture block A301 moves to a position between the fixture blocks B401, the installation block 4 is jacked up by the spring, the fixture block B401 is jacked up by the installation block 4, so that the fixture block B401 clamps the fixture block A301, the fixture block A301 cannot move backwards, the device can be limited when being lifted by one section, when the hydraulic telescopic rod 502 is suddenly damaged, the device cannot be contracted too far through the interaction of the fixture block A301 and the fixture block B401, the safety of the device is improved, when the device is contracted, a worker steps down on the pedal 1011, the pedal 1011 drives the connection block 101 to move downwards, make connecting block 101 drive installation piece 4 downstream for fixture block B401 is kept away from fixture block A301, makes interior support arm A3 can contract, and connecting block 101 pushes down push switch 102 simultaneously, and push switch 102 opens acousto-optic alarm 103, and acousto-optic alarm 103 sends out the warning, and the suggestion people around keeps away from the device and avoids taking place accident.

Wherein, buckle mechanism includes: the lifting device comprises a fixed box 501, a sliding block 5011, an electric telescopic rod 5012, a hydraulic telescopic rod 502 and a hydraulic auxiliary arm 5021, wherein the fixed box 501 is connected between outer supporting arms A5 in a rotating mode through a rotating shaft, the sliding block 5011 is connected inside the fixed box 501 in a sliding mode through a sliding rail, the electric telescopic rod 5012 is installed above the sliding block 5011 inside the fixed box 501, the hydraulic telescopic rod 502 is installed inside the fixed box 501, the hydraulic auxiliary arm 5021 is connected between inner supporting arms B6 in a rotating mode, the sliding block 5011 and the hydraulic telescopic rod 502 are both connected with the hydraulic auxiliary arm 5021 in a rotating mode, a rack is integrally arranged at the top of the sliding block 5011, teeth are integrally arranged at the bottom of the telescopic end of the electric telescopic rod 5012, the rack at the top of the sliding block 5011 is meshed with the teeth at the bottom of the telescopic end of the electric telescopic rod 5012, after lifting is completed, a worker opens the electric telescopic rod 5012 extends out to clamp the teeth at the bottom of the rack at the top of the sliding block 5011, the sliding block 5011 is fixed, and the device is further locked.

Further, the electric telescopic rod 5012 is electrically connected with an external power supply through a switch, the acousto-optic alarm 103 is electrically connected with the external power supply through the push switch 102, and the hydraulic telescopic rod 502 and the hydraulic auxiliary arm 5021 are connected with an external hydraulic pump.

The working principle is as follows: firstly, when the device is lifted, the inner support arm A3 moves towards the center of the device, so that the fixture A301 at the bottom of the inner support arm moves along with the inner support arm A, when the inclined surface at the bottom of the fixture A301 collides with the inclined surface at the top of the fixture B401, the fixture B401 is pressed down by the fixture A301, the fixture B401 drives the mounting block 4 to move downwards, so that the inner support arm A3 can move normally, when the fixture A301 moves to a position between the fixtures B401, the spring pushes up the mounting block 4, the mounting block 4 pushes up the fixture B401, so that the fixture block B401 clamps the fixture block A301 and prevents the fixture block A from moving backwards, and the device can be limited when being lifted for one section, so that when the hydraulic telescopic rod 502 is suddenly damaged, through the interaction of the fixture block A301 and the fixture block B401, the device does not shrink too much distance, the safety of the device is improved, after the lifting operation is completed, the operator opens the electric telescopic rod 5012, the electric telescopic rod 5012 extends out to clamp teeth at the bottom of the electric telescopic rod into a rack at the top of the sliding block 5011, the sliding block 5011 is clamped and fixed, the device is further locked, when the device is contracted, a worker opens the electric telescopic rod 5012, the electric telescopic rod 5012 is contracted to withdraw the teeth at the bottom of the electric telescopic rod out of the rack at the top of the sliding block 5011, the sliding block 5011 is loosened, the worker steps on the pedal 1011, the pedal 1011 drives the connecting block 101 to move downwards, so that the connecting block 101 drives the mounting block 4 to move downwards, the fixture block B401 is far away from the fixture block a301, so that the inner support arm A3 can be contracted, the teeth at the bottom of the electric telescopic rod 5012 and the rack at the top of the sliding block 5011 are engaged and clamped at the highest stroke of the device, the fixture block B401 and the fixture block A301 are also engaged and clamped at the highest stroke of the device, meanwhile, the connecting block 101 presses the press switch 102, the press switch 102 turns on the sound and light alarm 103, and the sound and light alarm 103 gives out a warning to prompt people around to get away from the device to avoid accidents.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A safety lock for a lift comprising: base (1), slope (104), interior support arm A (3), outer support arm A (5), interior support arm B (6), outer support arm B (601), top cap (7), slope (104) just are installed at base (1) and top cap (7) both ends, base (1) top one side is connected with outer support arm A (5) through rotate bracket, outer support arm A (5) rotate through the pivot and are connected with interior support arm A (3), interior support arm A (3) and outer support arm A (5) rotate through the pivot respectively and are connected with interior support arm B (6) and outer support arm B (601), and interior support arm B (6) and outer support arm B (601) rotation are connected, interior support arm B (6) and outer support arm B (601) one end rotate with top cap (7) to be connected its characterized in that: the lifting device is characterized in that a locking mechanism capable of locking the inner support arm A (3) and providing assistance to place the inner support arm A to slide after lifting is completed is arranged above the base (1), and a buckling mechanism capable of preventing the lifting arm from contracting after lifting is completed is arranged above the base (1).

2. Safety lock for lifts, according to claim 1, characterized in that: the locking mechanism includes: connecting block (101), footboard (1011), press switch (102), audible-visual annunciator (103), protection box (2), fixture block A (301), installation piece (4), fixture block B (401), base (1) top one side welding has protection box (2), interior support arm A (3) bottom is rotated through the pivot and is connected with the slider, and the welding of slider bottom has fixture block A (301), and the slider of interior support arm A (3) bottom and the inside slide rail sliding connection of protection box (2), base (1) is inside to have installation piece (4) through spring and spacing post elastic sliding connection, the welding of installation piece (4) top has fixture block B (401), base (1) is inside to have connecting block (101) through slide rail sliding connection, connecting block (101) one side integration is provided with footboard (1011), base (1) bottom is located footboard (1011) below and installs press switch (102), base (1) top is located protection box (2) one side and installs audible-visual annunciator (103).

3. Safety lock for lifts, according to claim 1, characterized in that: the buckle mechanism includes: fix box (501), slider (5011), electric telescopic handle (5012), hydraulic telescoping rod (502), hydraulic pressure auxiliary arm (5021), it even has fixed box (501) to rotate through the pivot between outer support arm A (5), fixed box (501) is inside to have slider (5011) through slide rail sliding connection, fixed box (501) is inside to be located slider (5011) top and to install electric telescopic handle (5012), fixed box (501) internally mounted has hydraulic telescoping rod (502), it is connected with hydraulic auxiliary arm (5021) to rotate between interior support arm B (6).

4. Safety lock for lifts, according to claim 2, characterized in that: the bottom of the mounting block (4) is connected with the connecting block (101) through a bracket.

5. Safety lock for lifts, according to claim 3, characterized in that: the sliding block (5011) and the hydraulic telescopic rod (502) are rotatably connected with the hydraulic auxiliary arm (5021).

6. Safety lock for lifts, according to claim 3, characterized in that: the top of the sliding block (5011) is integrally provided with a rack, the bottom of the telescopic end of the electric telescopic rod (5012) is integrally provided with teeth, and the rack at the top of the sliding block (5011) is meshed with the teeth at the bottom of the telescopic end of the electric telescopic rod (5012).