Frequency conversion control system for construction hoist

Abstract

The utility model discloses a frequency conversion control system for a construction hoist, which comprises a control box, a frequency converter main body is arranged in the control box, the control box comprises a box body, the upper part and the lower part in the box body are respectively provided with a drawing type upper partition dehumidification filter screen and a drawing type lower partition filter screen, and the frequency converter main body is positioned between the upper partition dehumidification filter screen and the lower partition filter screen. Air inlets located in the two side walls of the box body are formed above the upper partition dehumidification filter screen, exhaust fans are arranged on the inner sides of the air inlets, and outer earmuffs are arranged on the outer sides of the air inlets. An exhaust outlet is formed in the middle of the bottom of the box body, and an exhaust fan is arranged in the exhaust outlet. The dust filtering device has the advantage of being capable of effectively improving the dust filtering effect.

Description

Technical Field

[0001] The utility model relates to a construction elevator, in particular to a frequency conversion control system for the construction elevator. Background Art

[0002] Construction lifts, also known as construction elevators, are mainly composed of a car, a drive mechanism, a standard section, a wall attachment, a chassis, a fence, an electrical system (including a frequency conversion control box), etc. It is a manned and cargo-carrying construction machinery frequently used in construction. It is a temporary equipment during building construction and needs to be dismantled after the building construction is completed. Since the frequency conversion control box will generate a lot of heat during use, especially in summer, it is necessary to dissipate the heat in time to ensure the normal use of the frequency conversion control box; however, since the frequency conversion control box is in the construction environment of the building, the environment is full of dust, and the filtering effect of the frequency conversion control box is general, the frequency conversion control box will bring external dust into the control box when dissipating heat. Long-term use will make the control box full of dust, affecting its use. Therefore, the existing technology has the problem of poor dust filtering effect. Utility Model Content

[0003] The utility model aims to provide a frequency conversion control system for a construction hoist.

[0004] The utility model has the characteristic of being able to effectively improve the dust filtering effect.

[0005] The technical solution of the utility model: a frequency conversion control system for a construction elevator, comprising a control box, in which a frequency converter body is arranged, the control box comprising a box body, the upper and lower parts of the box body are respectively provided with a pull-out upper partition dehumidification filter and a lower partition filter, the frequency converter body is located between the upper partition dehumidification filter and the lower partition filter, above the upper partition dehumidification filter is provided with an air inlet located on both side walls of the box body, an exhaust fan is provided on the inner side of the air inlet, and an external ear cover is provided on the outer side of the air inlet; an exhaust outlet is provided in the middle position of the bottom of the box body, and an exhaust fan is provided in the exhaust outlet.

[0006] In the aforementioned variable frequency control system for construction hoists, an outer filter is provided at the bottom of the outer earmuffs.

[0007] In the aforementioned variable frequency control system for construction elevators, shock absorbing mechanisms are provided on both sides of the bottom of the box body; the shock absorbing mechanism includes circular shock absorbing seats located at both ends of the bottom of the box body, a base is provided under the circular shock absorbing seat, a group of annularly distributed U-shaped shock absorbing parts are provided between the base and the circular shock absorbing seat, and a telescopic rod and a spring are provided in the middle between the base and the circular shock absorbing seat; a threaded adjustment column is provided between the circular shock absorbing seat and the box body, and a matching threaded hole is provided on the bottom surface of the box body.

[0008] In the aforementioned variable frequency control system for construction hoists, the upper partition dehumidification filter includes a mounting frame, in which an upper arc-shaped dust removal filter with a concave structure, a middle arc-shaped dehumidification layer with a convex structure, and a lower arc-shaped dust removal filter with a concave structure are arranged in sequence from top to bottom.

[0009] Compared with the prior art, the utility model provides a pull-out upper partition dehumidification filter and a lower partition filter at the upper and lower parts of the box respectively, which are used to filter the air entering the box, and can effectively prevent external dust from entering the main space inside the box, and protect the normal operation of the inverter body and other components; and the upper partition dehumidification filter and the lower partition filter are provided as a pull-out structure, which is also convenient for their replacement. At the same time, the utility model provides air inlets on both sides of the upper part, and external ear covers and external filters on the outside, so as to further improve the filtering and dustproof effect. Moreover, the upper partition dehumidification filter is composed of a dust removal filter and a dehumidifier layer, and has the effect of dust removal and dehumidification, and prevents external moisture, water vapor, etc. from entering the box to damage the inverter body, etc. In summary, the utility model has the characteristics of being able to effectively improve the dust filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the utility model;

[0011] Figure 2 yes Figure 1 A partial enlarged view of .

[0012] The markings in the attached drawings are: 1-control box, 2-inverter body, 101-box, 102-upper partition dehumidification filter, 103-lower partition filter, 104-air inlet, 105-exhaust fan, 106-external earmuffs, 107-exhaust outlet, 108-exhaust fan, 109-external filter, 110-shock absorption mechanism, 111-circular shock absorption seat, 112-base, 113-U-shaped shock absorption member, 114-telescopic rod, 115-spring, 116-threaded adjustment column, 121-mounting frame, 122-upper arc dust removal filter, 123-middle arc dehumidification layer, 124-lower arc dust removal filter DETAILED DESCRIPTION

[0013] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0014] Embodiment. A frequency conversion control system for a construction hoist is composed of Figure 1-2As shown, it includes a control box 1, in which a frequency converter body 2 is arranged, the control box 1 includes a box body 101, the upper and lower parts of the box body 101 are respectively provided with a pull-out upper partition dehumidification filter 102 and a lower partition filter 103, the frequency converter body 2 is located between the upper partition dehumidification filter 102 and the lower partition filter 103, above the upper partition dehumidification filter 102 is provided with an air inlet 104 located on both side walls of the box body 101, an exhaust fan 105 is arranged on the inner side of the air inlet 104, and an external ear cover 106 is arranged on the outer side of the air inlet 104; an exhaust port 107 is arranged in the middle position of the bottom of the box body 101, and an exhaust fan 108 is arranged in the exhaust port 107.

[0015] An outer filter 109 is disposed at the bottom of the outer earmuff 106 .

[0016] Shock absorbing mechanisms 110 are provided on both sides of the bottom of the box body 101; the shock absorbing mechanism 110 includes circular shock absorbing seats 111 located at both ends of the bottom of the box body 101, a base 112 is provided below the circular shock absorbing seat 111, a group of annularly distributed U-shaped shock absorbing members 113 are provided between the base 112 and the circular shock absorbing seat 111, and a telescopic rod 114 and a spring 115 are provided between the base 112 and the circular shock absorbing seat 111; a threaded adjustment column 116 is provided between the circular shock absorbing seat 111 and the box body 101, and a matching threaded hole is provided on the bottom surface of the box body 101.

[0017] The upper partition dehumidification filter 102 includes a mounting frame 121, in which an upper arc dust removal filter 122 with a concave structure, a middle arc dehumidification layer 123 with a convex structure, and a lower arc dust removal filter 124 with a concave structure are arranged in sequence from top to bottom.

[0018] Specifically, the middle arc-shaped dehumidification layer includes an upwardly convex arc-shaped frame, and a dehumidifier is arranged in the arc-shaped frame.

[0019] Preferably, a warning light strip is provided on the outer wall of the box, a photovoltaic solar panel is provided on the top of the box, and an energy storage device is also provided in the box, which is connected to the photovoltaic solar panel and the warning light strip.

[0020] By setting up warning light strips, it can serve as a warning and reminder at night to improve safety.

[0021] The outer edge surface of the base is also provided with a mounting hole for fixing to the ground.

[0022] The inverter body includes the inverter and relay or PLC.

[0023] The utility model ensures smooth heat dissipation by arranging air inlets on both sides of the upper part of the box body and arranging air outlets in the middle of the bottom of the box body.

[0024] Because vibrations often occur during construction on construction sites, which can easily cause the internal circuits of the inverter to loosen, the utility model can effectively improve the shock absorption effect of the frequency conversion control system by providing a shock absorbing mechanism to prevent the internal inverter body from being affected by external vibrations.

[0025] Moreover, the shock absorbing mechanism is composed of a circular shock absorbing seat, a base, a U-shaped shock absorbing part, a telescopic rod and a spring, with double shock absorption and good shock absorbing effect. A threaded adjustment column is also provided on the upper end of the circular shock absorbing seat for fine-tuning the height of the shock absorbing mechanism, thereby facilitating the horizontal adjustment of the frequency conversion control system during installation, facilitating installation and meeting the needs of different installation environments.

[0026] Pull-out rails are provided on the upper and lower inner wall surfaces on the left and right sides of the box body to facilitate pulling out the upper partition dehumidification filter and the lower partition filter.

[0027] The mounting frame of the upper partition dehumidification filter is provided with matching slide grooves on both sides for easy pulling. The upper and lower arc frames in the mounting frame are set as concave structures, and the middle arc frame is set as a convex structure, so as to disturb the air flowing through and prevent the air from concentrating in a certain area; it can also expand the area of ​​the filter and dehumidifier layer, which is conducive to dust removal and dehumidification.

[0028] The dust filter can be filled in the upper arc frame and the lower arc frame, and the dehumidifier can be filled in the middle arc frame.

[0029] The heat dissipation process of the utility model: the exhaust fan and the exhaust fan work at the same time, sucking the external air into the box through the air inlet from the external earmuffs on both sides of the upper part, and passing through the upper partition dehumidification filter, the inside of the box and the lower partition filter in turn, and then discharged from the exhaust port at the bottom, exchanging heat with the inverter body inside the box to take away the heat. The exhaust fan and the exhaust fan can be turned on accordingly according to the actual working conditions. In this process, the outside air is first filtered by the external filter, and then dedusted by the dust removal filter and absorbed by the dehumidifier before entering the box, thereby greatly reducing the dust entering the box and ensuring the cleanliness of the inside of the box. The lower partition filter at the bottom is to prevent dust from entering from the bottom.

[0030] When you need to replace the upper partition dehumidification filter or the lower partition dehumidification filter, just open the sealed door of the box, pull it out and install a new one.

Claims

1. A frequency conversion control system for a construction hoist, comprising a control box (1), wherein a frequency converter body (2) is arranged in the control box (1), and characterized in that: The control box (1) comprises a box body (101), wherein the upper and lower parts of the box body (101) are respectively provided with a pull-out upper partition dehumidification filter (102) and a lower partition filter (103), the inverter body (2) is located between the upper partition dehumidification filter (102) and the lower partition filter (103), an air inlet (104) located on both side walls of the box body (101) is provided above the upper partition dehumidification filter (102), an exhaust fan (105) is provided inside the air inlet (104), and an external ear cover (106) is provided outside the air inlet (104); an air outlet (107) is provided at the middle position of the bottom of the box body (101), and an exhaust fan (108) is provided inside the air outlet (107).

2. The frequency conversion control system for a construction hoist according to claim 1 is characterized in that: An outer filter screen (109) is provided at the bottom of the outer ear cover (106).

3. The frequency conversion control system for construction hoist according to claim 1 is characterized in that: Shock absorbing mechanisms (110) are provided on both sides of the bottom of the box body (101); the shock absorbing mechanism (110) comprises circular shock absorbing seats (111) located at both ends of the bottom of the box body (101); a base (112) is provided below the circular shock absorbing seat (111); a group of U-shaped shock absorbing parts (113) distributed in an annular manner are provided between the base (112) and the circular shock absorbing seat (111); a telescopic rod (114) and a spring (115) are provided between the base (112) and the circular shock absorbing seat (111); a threaded adjustment column (116) is provided between the circular shock absorbing seat (111) and the box body (101); and a matching threaded hole is provided on the bottom surface of the box body (101).

4. The frequency conversion control system for a construction hoist according to claim 1 is characterized in that: The upper partition dehumidification filter (102) comprises a mounting frame (121), wherein an upper arc-shaped dust removal filter (122) with a concave structure, a middle arc-shaped dehumidification layer (123) with a convex structure, and a lower arc-shaped dust removal filter (124) with a concave structure are arranged in sequence from top to bottom in the mounting frame (121).

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