CN213231105U

CN213231105U - Safe type goods lift formula lift platform

Info

Publication number: CN213231105U
Application number: CN202021621912.8U
Authority: CN
Inventors: 胡冠巨
Original assignee: Ningbo Nali Lifting Machinery Co ltd
Current assignee: Ningbo Nali Lifting Machinery Co ltd
Priority date: 2020-08-06
Filing date: 2020-08-06
Publication date: 2021-05-18
Anticipated expiration: 2030-08-06

Abstract

The utility model discloses a safe type goods ladder formula lift platform, including support body, elevating platform, hydraulic cylinder, power and controller, the controller includes the rising button that is used for controlling hydraulic cylinder to stretch out, be provided with infrared detector in the elevating platform, infrared detector is used for detecting the infrared signal of the thing space of putting of elevating platform, and infrared detector is connected with first contact to control first contact action, the rising button drives the action of second contact, and hydraulic cylinder's power end loops through first contact and second contact and connects in the power, through the aforesaid setting, when infrared detector detects infrared signal in the elevating platform, first contact is in off-state, avoids the maloperation to lead to goods ladder carrier to rise, guarantees safe in utilization.

Description

Safe type goods lift formula lift platform

Technical Field

The utility model relates to a goods lift technical field, in particular to safe type goods lift formula lift platform.

Background

At present, chinese patent with publication number CN201186845Y discloses an improved lifting freight elevator, which comprises a left frame body and a right frame body, wherein the left frame body and the right frame body are composed of a front upright post and a rear upright post, a telescopic hydraulic cylinder is arranged between the front upright post and the rear upright post and is connected with a lifting platform arranged between the left frame body and the right frame body through a chain, grooves are formed in the front upright post and the rear upright post, four supports of the lifting platform are respectively provided with a pulley I and a pulley II, the pulley I is clamped in the grooves and connected with the bottom surfaces of the grooves, and the pulley II is clamped in the grooves and connected with the two side surfaces of the grooves.

When the lifting goods elevator is lifted, personnel are forbidden to enter the lifting platform, but misoperation can start the lifting platform when the personnel are on the lifting platform, so that danger is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a safe type goods ladder formula lift platform, it has the advantage of avoiding personnel to miss to go into, safe in utilization.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a safe type goods lift formula lift platform, includes support body, elevating platform, hydraulic cylinder, power and controller, the controller is including being used for controlling the rising button that hydraulic cylinder stretches out, be provided with infrared detector in the elevating platform, infrared detector is used for detecting the infrared signal of putting the object space of elevating platform, and infrared detector is connected with first contact to control the action of first contact, the rising button drives the action of second contact, and hydraulic cylinder's power end loops through first contact and second contact and connects in the power.

Through adopting above-mentioned technical scheme, when infrared detector detected that it has infrared signal in the elevating platform, first contact was in the off-state, avoided the maloperation to lead to goods lift to carry personnel to rise, guaranteed safe in utilization.

Further setting: the infrared detector is provided with 3 groups, evenly arranged on two side walls of the lifting platform and used for detecting infrared signals at different positions.

Through adopting above-mentioned technical scheme, the infrared detector of multiunit can detect more space in the elevating platform, avoids personnel to be in and detects the blind area and produce danger.

Further setting: the support body includes four support columns and two lift stands that the symmetry set up, the lift stand includes the lift groove, the elevating platform includes supporting platform and portal frame, the portal frame includes crossbeam and two and erects the roof beam, two it is provided with the slip wheelset to erect roof beam mutually reverse one side, the slip wheelset is including setting up the top sheave that erects the upper end of roof beam and setting up the bottom sheave that erects the roof beam lower extreme respectively, top sheave and bottom sheave are located lift groove department, hydraulic cylinder is used for driving the portal frame and goes up and down.

Through adopting above-mentioned technical scheme, hydraulic cylinder direct action is in the portal frame, it goes up and down to drive supporting platform, at the ascending in-process of supporting platform, if when the distribution of gravity was even on the supporting platform, all of upper pulley and lower pulley both sides do not contact with the lift groove, when the uneven support platform that leads to of distribution of gravity produced certain slope, because the setting of portal frame structure, the interval between upper pulley and the lower pulley is great, the moment of resisting the effort of supporting platform slope just also is big more, pressure is less between upper pulley and lower pulley and the sliding tray, thereby frictional force is less, avoided supporting platform to take place to block and die at the lift in-process.

Further setting: a reinforcing support rod is connected between the top end of the vertical beam and the cross beam, the upper pulley is over against the cross beam, and the lower pulley is over against the lower end of the supporting platform.

Further setting: and a pressure sensor and an alarm are arranged in the supporting platform, and the pressure sensor is electrically connected with the alarm.

By adopting the technical scheme, when the weight of the object in the supporting platform exceeds a set value, the pressure sensor transmits a signal to the alarm, and the alarm gives an alarm to avoid overweight.

Further setting: the output end of the lifting hydraulic cylinder is rotatably connected with a lifting gear, a lifting chain is meshed on the lifting gear, and two ends of the lifting chain are respectively connected to the frame body and the portal frame.

Further setting: the side of support body is provided with the protection network, the protection network is used for blockking personnel to get into the lift platform region.

Drawings

FIG. 1 is a schematic structural view of example 1;

FIG. 2 is a schematic top view of the structure of embodiment 1;

FIG. 3 is a schematic cross-sectional view taken along the line A-A in FIG. 2;

FIG. 4 is a schematic cross-sectional view taken along the line B-B in FIG. 2;

fig. 5 is an enlarged view at C in fig. 4.

In the figure, 1, power supply; 2. a controller; 3. an infrared detector; 4. a pressure sensor; 5. a support pillar; 6. Lifting the upright post; 7. a lifting groove; 8. a support platform; 9. a gantry; 10. a cross beam; 11. erecting a beam; 12. An upper pulley; 13. a lower pulley; 14. reinforcing the support rod; 15. a lifting gear; 16. a lifting chain; 17. A lifting hydraulic cylinder; 18. an alarm.

Detailed Description

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

Example 1: the utility model provides an anti-sticking hydraulic lifting platform, refers to fig. 1 and 3, includes support body, elevating platform, power 1 and hydraulic cylinder 17, installs controller 2 on the support body. The elevating platform includes front side and top open-ended supporting platform 8 and with supporting platform 8 welded portal frame 9, supporting platform 8 includes supporting baseplate, backplate and two side shields. Three groups of infrared detectors 3 are horizontally and uniformly distributed on the side baffle at the height position 50cm away from the supporting bottom plate. The infrared detector 3 is connected with a first contact and controls the first contact to act, the three infrared detectors 3 are connected in series, when the three infrared detectors 3 do not detect human body infrared signals, the first contact is in a communicated state, the lifting button controls the second contact to act, and the end of the power supply 1 of the lifting hydraulic cylinder 17 is connected to the power supply 1 through the first contact and the second contact in sequence. When personnel exist on the supporting platform 8, the first contact is in a disconnected state, so that the danger caused by misoperation is avoided.

Referring to fig. 3, a pressure sensor 4 and an alarm 18 are arranged above the supporting base plate, the pressure sensor 4 is electrically connected with the alarm 18, a pressure bearing plate is connected above the pressure sensor 4, and when the weight of a placed object exceeds a set value, the pressure sensor 4 transmits a signal to the alarm 18 to give an alarm to remind a user.

Referring to fig. 1 and 2, the frame body includes four support columns 5 fixed on the ground and a fixing frame respectively connected to the top ends and the bottom ends of the support columns 5, and protective nets (not shown in the figure) are arranged on the left side, the right side and the back side of the frame body to prevent people from mistakenly running into dangerous areas. The ground between the support columns 5 on the two sides is fixed with a lifting upright post 6 which is right opposite, the side surface which is right opposite to the lifting upright post 6 is provided with a lifting groove 7, the cross section of the lifting groove 7 is convex, and the end with narrower width is opened outwards. The lifting groove 7 comprises a shaft penetrating section with narrow width and a rolling section with large width, and the rolling section comprises a groove bottom of the shaft penetrating section and two rolling side faces which are parallel to each other.

Referring to fig. 1 to 3, the portal frame 9 includes two vertical beams 11 and a cross beam 10, the vertical beams 11 support the upper ends of the bottom plate and the side shield through threaded connection, the two vertical beams 11 are respectively disposed at the outer sides of the side shield, two ends of the cross beam 10 are connected to one side opposite to the two vertical beams 11, the vertical beams 11 are located at positions close to the upper ends, and a reinforcing support rod 14 is connected between the top ends of the vertical beams 11 and the cross beam 10. The vertical beam 11 is provided with a sliding wheel set on one side far away from the cross beam 10, the sliding wheel set comprises an upper pulley 12 and a lower pulley 13, the upper pulley 12 and the lower pulley 13 slide in the lifting groove 7, the rotating shaft of the upper pulley 12 is arranged at the position right facing the cross beam 10, and the rotating shaft of the lower pulley 13 is arranged at the position right facing the supporting bottom plate. The distance between the upper pulley 12 and the lower pulley 13 is 2 m. One end of the rotating shaft of the upper pulley 12, which faces the bottom of the lifting groove 7, is hemispherical and abuts against the bottom of the lifting groove 7. One end of the rotating shaft of the lower pulley 13, which faces the bottom of the lifting groove 7, is hemispherical and abuts against the bottom of the lifting groove 7.

Referring to fig. 1, 4 and 5, a lifting hydraulic cylinder 17 is fixed on the ground, the lifting hydraulic cylinder 17 is provided with two lifting columns 6 which are respectively arranged at the front side and the rear side, and the portal frames 9 are pulled at the two sides, so that the pulling acting force is more stable. The output end of the lifting hydraulic cylinder 17 is connected with two symmetrical lifting gears 15, the lifting gears 15 are connected with lifting chains 16 meshed with the lifting gears 15, and two ends of each lifting chain 16 are respectively connected with the lifting upright post 6 and the supporting bottom plate. The last connection channel-section steel that is fixed with of lift stand 6, the both ends of lift chain 16 are established an organic whole and are provided with the threaded rod, have seted up the connecting hole on the connection channel-section steel, and the threaded rod passes through two nuts and locks the threaded rod in connection channel-section steel department.

The working principle is as follows:

when a person is present on the support platform 8, the infrared detector 3 sends a human body infrared signal, and the lifting hydraulic cylinder 17 is prohibited from starting by disconnecting the first contact. After the lifting hydraulic cylinder 17 is started, the lifting gear 15 is pushed to ascend, the portal frame 9 is pulled to ascend through the lifting chain 16, and the upper pulley 12 and the lower pulley 13 are located in the sliding groove to ascend and descend in the ascending process. When the supporting platform 8 inclines and the front and back direction inclines, the upper pulley 12 and the lower pulley 13 respectively contact with the two sides of the lifting groove 7 to counteract the inclination acting force, and the friction force is small due to rolling friction; when the left and right directions incline, the hemispherical ends of the upper pulley 12 and the lower pulley 13 far away from the supporting platform 8 are abutted against the bottom of the groove, so that the contact area is small, and the friction force is small.

The above-described embodiments do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the above-described embodiments should be included in the protection scope of the technical solution.

Claims

1. The utility model provides a safe type goods lift formula lift platform, a serial communication port, including support body, elevating platform, hydraulic cylinder (17), power (1) and controller (2), controller (2) are including being used for controlling the rising button that hydraulic cylinder (17) stretched out, be provided with infrared detector (3) in the elevating platform, infrared detector (3) are used for detecting the infrared signal of the thing space of putting of elevating platform, and infrared detector (3) are connected with first contact to control first contact action, the button that rises drives the action of second contact, and power (1) end of hydraulic cylinder (17) loops through first contact and second contact and connects in power (1).

2. The safety goods ladder type lifting platform as claimed in claim 1, wherein the infrared detectors (3) are provided with 3 groups, uniformly arranged on two side walls of the lifting platform, and used for detecting infrared signals at different positions.

3. The safety type goods ladder type lifting platform according to claim 1, wherein the frame body comprises four supporting columns (5) and two symmetrically arranged lifting columns (6), the lifting columns (6) comprise lifting grooves (7), the lifting platform comprises a supporting platform (8) and a portal frame (9), the portal frame (9) comprises a cross beam (10) and two vertical beams (11), sliding wheel sets are arranged on opposite sides of the two vertical beams (11), and each sliding wheel set comprises an upper pulley (12) arranged at the upper end of the vertical beam (11) and a lower pulley (13) arranged at the lower end of the vertical beam (11).

4. The safety ladder type lifting platform for goods as claimed in claim 3, wherein a reinforcing support bar (14) is connected between the top end of the vertical beam (11) and the cross beam (10), the upper pulley (12) is over against the cross beam (10), and the lower pulley (13) is over against the lower end of the support platform (8).

5. The safety type goods ladder type lifting platform as claimed in claim 3, characterized in that a pressure sensor (4) and an alarm (18) are arranged in the supporting platform (8), and the pressure sensor (4) and the alarm (18) are electrically connected.

6. The safety type goods ladder type lifting platform as claimed in claim 1, wherein the output end of the lifting hydraulic cylinder (17) is rotatably connected with a lifting gear (15), a lifting chain (16) is engaged on the lifting gear (15), and two ends of the lifting chain (16) are respectively connected with the frame body and the portal frame (9).

7. The safety freight ladder type lifting platform according to claim 1, wherein a protective net is arranged on the side of the frame body and used for preventing people from entering the area of the supporting platform (8).