WO2021248832A1

WO2021248832A1 - Fan dropping-prevention safety mechanism

Info

Publication number: WO2021248832A1
Application number: PCT/CN2020/129955
Authority: WO
Inventors: 施恒之
Original assignee: 浙江驿公里智能科技有限公司
Priority date: 2020-06-12
Filing date: 2020-11-19
Publication date: 2021-12-16
Also published as: CN111661009B; CN111661009A

Abstract

A fan dropping-prevention safety mechanism, relating to the technical field of hoisting of fans for car washers. The mechanism comprises: an insertion block (2), being provided with transverse and longitudinal first pin shaft holes (201), limiting notches being formed in the side walls where the two ends of the transverse first pin shaft hole (201) are located; edge lifting ring nuts (7), being provided with second ring bodies (704) and second screw rods (705), the second ring bodies (704) being mounted on the limiting notches at the two ends of the transverse first pin shaft hole (201) by means of pins, and the second screw rods (705) being connected to a motor (4); and a middle lifting ring nut (6), being provided with a first screw rod (602) and a first ring body (601), the first screw rod (602) penetrating through the longitudinal first pin shaft hole (201), and the penetrating-out end of the first screw rod (602) being connected to a cross beam (1). According to the mechanism, by means of a combined design of the insertion block (2) and a hoisting nut, reverse rotation and loosening of the screw rods caused by vibration can be avoided, and the durability of the device is improved.

Description

Safety mechanism for preventing fan from falling

Technical field

The invention belongs to the technical field of fan hoisting for a car washing machine, and particularly relates to a safety mechanism for preventing the fan from falling.

Background technique

With the rapid development of my country’s economy, the automobile industry has developed rapidly. Automobiles have become the main means of transportation for people’s daily travel. The traditional cleaning method is manual washing with a water gun, which has the disadvantages of high labor intensity and unclean cleaning. Later, people invented automatic car washing machines, especially represented by gantry car washing machines. This kind of fan is installed and fixed by bolts, so that the motor works in the fan and the beam moves in the process of loosening the bolts.

Summary of the invention

The object of the present invention is to provide a safety mechanism for preventing the fan from falling, which improves the overall stability of the fan hoisting through the combined design of the plug-in block and the hoisting nut.

In order to solve the above technical problems, the present invention is implemented through the following technical solutions:

The present invention is a safety mechanism for preventing fans from falling, including: a plug-in block with first horizontal and vertical first pin holes, and side walls on which both ends of the first horizontal pin holes are provided with limiting notches The side lifting ring nut, which has a second ring body and a second screw, the second ring body is installed on the limiting notches at both ends of the first pin shaft hole in the transverse direction by a pin, and the second screw is connected to the motor; the middle lifting ring nut, It has a first screw and a first ring body, a first pin hole of the first screw passing through the longitudinal direction, and the penetrating end of the first screw is connected to the cross beam.

Further, the output end of the motor is connected with a fan, and a steel wire rope is bolted between the fan and the motor and the first ring body.

Further, the first ring body is provided with a ring of concave rings, and one end of the steel wire rope is bolted to the concave ring.

Further, the first screw rod is provided with a second pin shaft hole, the first screw rod passes through the through hole on the cross beam, and a positioning pin is installed in the second pin shaft hole on the penetrating end of the first screw rod.

Further, the lifting ring nuts on both sides are installed on the motor in reverse, and the distance between the lifting ring nuts on the two sides is not less than the radius of the second ring body.

Furthermore, the side ring nut also has a limiting part.

Further, the limiting portion is a connecting piece connecting the second screw rod and the second ring body, the limiting slot is an arch-shaped slot, and the edge flute at the port of the arch-shaped slot has a notch that matches the limiting portion.

Further, the limiting part is a trapezoidal block, and the notch is a trapezoidal notch matching the trapezoidal block.

Further, the limiting part is an arc-shaped rod, one end of the arc-shaped rod has a hook, the hook end is connected to the outer ring surface of the second ring body, the virtual ring where the arc part of the arc-shaped rod is located and the second The positions of the center points of the ring bodies are the same, the limiting notch is a fan-shaped notch, and the fan-shaped notch is provided with a limiting post. When the second ring body is fitted in the fan-shaped notch, the limiting post abuts against the hook.

Further, the outer end of the limiting column has an end cap, and the end cap abuts on the arc-shaped rod.

The present invention has the following beneficial effects:

The invention has simple structure and convenient use. The combined design of the plug-in block and the hoisting nut improves the overall stability of the fan hoisting. Among them, the hoisting ring nuts on both sides are designed to be installed in pairs and can be installed through two oppositely installed side hoisting rings. The nut can make the structure of the hoisting motor after clamping the plug-in block not to rotate as a whole. It can also be fully restricted by the trapezoidal and arch-shaped notch design, or through the arc-shaped rod and fan-shaped notch. Type design, so that the side ring nut can be rotated at a certain angle around the bolt is not completely limited.

Of course, any product implementing the present invention does not necessarily need to achieve all the advantages described above at the same time.

Description of the drawings

In order to explain the technical solutions of the embodiments of the present invention more clearly, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative work, other drawings can be obtained based on these drawings.

Figure 1 is a schematic diagram of the structure of the invention;

Figure 2 is a schematic diagram of the distribution of the middle lifting ring nut and the side lifting ring nut on the plug-in block;

Figure 3 is a schematic diagram of the structure of the first ring body;

Figure 4 is a structural schematic diagram of the mating plug-in block with an arch-shaped notch and the side ring nut;

Figure 5 is a structural schematic diagram with a ring nut in the middle of a trapezoidal block;

Figure 6 is a schematic structural diagram of a plug-in block with an arch-shaped slot;

Figure 7 is a structural schematic diagram of the mating of the plug block with the sector-shaped notch and the side ring nut;

Figure 8 is a schematic view of the structure of a side ring nut with an arc-shaped rod;

Figure 9 is a schematic structural diagram of a plug-in block with a sector-shaped slot;

In the drawings, the list of parts represented by each number is as follows:

1- cross beam, 2- plug-in block, 3- wire rope, 4- motor, 5- fan, 6- middle ring nut, 7-side ring nut, 201-first pin hole, 202-arch-shaped notch, 203-notch, 204-sector notch, 205-limiting post, 601-first ring, 602-first screw, 603-second pin hole, 604-concave ring, 701-trapezoid block, 702-arc Shaped rod, 703-connecting plate, 704-second ring body, 705-second screw.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", etc. The indication of the orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the component or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention .

Please refer to Figures 1-9. The present invention is a safety mechanism for preventing the fan from falling. Two side ring nuts 7 with the downward screw end facing down are installed on the plug-in block 2. The side ring nuts 7 7 is used for hoisting the fan composed of the motor 4 and the fan 5. A middle hoisting ring nut 6 with the screw end facing upwards is installed in the middle. The hoisting structure composed of connecting block 2 hangs the fan stably under the beam 1.

specific:

The plug-in block 2 has horizontal and vertical first pin holes 201. The side walls on which both ends of the horizontal first pin holes 201 are located are provided with limiting notches. The limiting notches and the horizontal first pin holes Hole 201 goes through;

The middle lifting ring nut 6 has a first screw rod 602 and a first ring body 601. The first screw rod 602 has a second pin hole 603. In the beam 1, the first screw 602 passes through the through hole on the beam 1, and the second pin hole 603 on the penetrating end is equipped with a positioning pin.

Further, a fan 5 is connected to the output end of the motor 4, and a wire rope 3 is bolted between the fan and the motor and the first ring body 601.

Specifically, a pair of circular rings are welded on both ends of the motor 4, the first ring body 601 is connected to the motor 4 by four wire ropes 3, and a pair of circular rings are welded to the edge of the rear surface of the fan 5, and two wire ropes are connected. 3. The hoisting structure, the fan 5 and the motor 4 are stabilized again by the wire rope 3.

Further, the first ring body 601 has a ring of concave ring 604, and one end of the steel wire rope 3 is bolted to the concave ring 604.

The side ring nut 7 has a second ring body 704 and a second screw 705. The second ring body 704 is mounted on the limiting slots at both ends of the lateral first pin hole 201 by a pin, and the second screw 705 is connected to the motor 4;

Among them, the lifting ring nuts 7 on both sides are installed on the motor 4 in opposite directions, that is, the two screw holes opened on the thickened part of the surface of the motor 4 have opposite directions. The two screw holes are preferably blind screw holes, in order to be able to To enable the side lifting ring nuts 7 to be installed on the motor 4, the distance between the two side lifting ring nuts 7 is not less than the radius of the second ring body 704, and the two oppositely installed side lifting ring nuts 7 can make the clamping The structure of hoisting the motor after holding the plug-in block 2 does not rotate as a whole.

The holes of the other blind screw holes are provided with an initial rotation score line, and the second screw 705 of the side ring nut 7 also has an initial rotation score line, so that the side ring nuts 7 are parallel to each other after the respective installations are completed. After that, it is convenient to put the plug block 2 directly on the eye nuts 7 on both sides.

The side ring nut 7 also has a limiting portion, and the limiting portion limits the stability of the contact point between the second ring body 704 on the side ring nut 7 and the plug-in block 2.

The details are shown in Figure 4-6, one of which is fully qualified:

The limiting part is a trapezoidal block 701 which is a connecting piece connecting the second screw 705 and the second ring body 704. Specifically, the trapezoidal block 701, the second screw 705 and the second ring body 704 are an integral piece with a limiting slot It is an arch-shaped notch 202, and the edge flute at the port of the arch-shaped notch 202 has a notch 203 that fits with the limiting portion.

Further, the notch 203 is a trapezoidal notch that fits the trapezoidal block. The notch surface area of the trapezoidal notch is smaller than the bottom surface area of the groove. When the second ring 704 is fitted to the upper door ring of the arch-shaped notch 202, the trapezoid The block 701 fits in the trapezoidal slot.

The trapezoid structure restricts the degree of freedom of the side ring nut 7 in the axial direction of the first pin hole 201 of the plug block 2.

The details are shown in Figure 7-9. In another case, it is not completely limited:

The limiting part is an arc-shaped rod 702. One end of the arc-shaped rod 702 has a hook, and the hook end is connected to the outer ring surface of the second ring body 704. The positions of the center points of the two ring bodies 704 are the same, the limiting notch is a fan-shaped notch 204, and the fan-shaped notch 204 is provided with a limiting post 205. When the second ring 704 is fitted to the fan-shaped notch 204, the limiting post 205 abuts Inside the hook.

The outer end of the limiting column 205 has an end cap, and the end cap abuts against the arc-shaped rod 702.

The connecting piece between the second ring body 704 and the second screw 705 is a connecting block with the same thickness as the diameter of the second screw 705 and the thickness of the second ring 704.

In this case, the fan 5 can swing around the shaft in the first pin hole 201 under other driving structures. The binding length of the wire rope 3 can be adjusted to adapt to the rotation of the fan.

The other plug-in block 2 has horizontal and vertical first pin holes 201, and the horizontal and vertical ones can also be used as a through design. At this time, the preferred longitudinal first pin hole 201 has a smaller diameter than the horizontal and longitudinal first pin holes 201. The diameter of the first pin hole 201 is between the first pin holes 2011/3-2/3 in the transverse direction, and the pin inserted into the first pin hole 201 in the transverse direction is restricted by the first screw 602.

In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific feature, structure, material or characteristic described in combination with the embodiment or example is included in at least the present invention. In one embodiment or example. In this specification, the schematic representations of the above-mentioned terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiment does not describe all the details in detail, nor does it limit the invention to only the described specific embodiments. Obviously, many modifications and changes can be made according to the content of this manual. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

A safety mechanism for preventing a fan from falling, which is characterized in that it comprises:

The plug-in block (2) has first horizontal and vertical first pin holes (201), and the side walls where both ends of the first horizontal pin holes (201) are provided with limiting notches;

The side lifting ring nut (7), which has a second ring body (704) and a second screw (705), the second ring body (704) is installed at the limit of both ends of the transverse first pin hole (201) by a bolt On the notch, the second screw (705) is connected to the motor (4);

The middle lifting ring nut (6) has a first screw (602) and a first ring body (601). The first screw (602) has a first pin hole (201) passing through the longitudinal direction. Beam (1).
The safety mechanism for preventing the fan from falling according to claim 1, wherein the output end of the motor (4) is connected with a fan (5), and the fan and the motor are bolted to the first ring body (601). There is a wire rope (3).
The safety mechanism for preventing fan falling according to claim 2, wherein the first ring body (601) has a ring of concave ring (604), and one end of the steel wire rope (3) is bolted to the concave ring (604). )superior.
The safety mechanism for preventing the fan from falling according to claim 1, wherein the first screw (602) has a second pin hole (603), and the first screw (602) passes through the beam (1). The second pin hole (603) on the penetrating end of the through hole is provided with a positioning pin.
The safety mechanism for preventing the fan from falling according to claim 1 or 2, characterized in that the lifting ring nuts (7) on both sides are installed on the motor (4) in opposite directions, and the distance between the lifting ring nuts (7) on the two sides is at least The distance is not less than the radius of the second ring body (704).
The safety mechanism for preventing the fan from falling down according to claim 5, characterized in that the side ring nut (7) also has a limit part.
The safety mechanism for preventing the fan from falling according to claim 6, wherein the limiting portion is a connecting piece connecting the second screw (705) and the second ring body (704), and the limiting slot is in the shape of an arch The notch (202), the edge flute at the port of the arch-shaped notch (202) is provided with a notch (203) that matches the limiting part.
The safety mechanism for preventing fan falling according to claim 7, characterized in that the limiting part is a trapezoidal block (701), and the notch (203) is a trapezoidal notch that cooperates with the trapezoidal block (701).
The safety mechanism for preventing the fan from falling according to claim 6, wherein the limiting part is an arc-shaped rod (702), one end of the arc-shaped rod (702) has a hook, and the hook end is connected to the second On the outer ring surface of the ring body (704), the virtual ring where the arc part of the arc rod (702) is located is the same as the center point of the second ring body (704), and the limiting slot is a fan-shaped slot (204) , The fan-shaped slot (204) is provided with a limiting post (205), and when the second ring body (704) is fitted into the fan-shaped slot (204), the limiting post (205) abuts against the inside of the hook.
The safety mechanism for preventing the fan from falling down according to claim 9, characterized in that the outer end of the limiting column (205) has an end cap, and the end cap abuts on the arc-shaped rod (702).