Double-pull-rod structure of frequency converter

Abstract

The utility model discloses a double-pull-rod structure of a frequency converter, which relates to the technical field of frequency converters and comprises a frequency conversion box body, and two racks are mounted at two ends of one side of the top of the frequency conversion box body in a sliding manner; two gear winding rollers are arranged on one sides of the two racks respectively, mounting side covers are arranged on the other sides of the racks, and rack springs are arranged at the ends, close to each other, of the racks; the sides, close to each other, of the two gear winding rollers are each provided with two folding rod components, and limiting ropes are arranged on the gear winding rollers. A button bayonet lock part is arranged on the mounting side cover, and a mounting top cover is fixedly arranged at the top of the mounting side cover; and pull rods are arranged at the tops of the two folding rod parts. Through the above structure, the pull rod can be rapidly stored and unfolded, the occupied space is small, the installation is convenient, and the frequency converter can be conveniently extended by different distances to move.

Description

TECHNICAL FIELD

[0001] The utility model relates to variable frequency machine technical field, concretely relates to a double pull rod structure of variable frequency machine. BACKGROUND

[0002] Variable frequency machine, usually refers to variable frequency motor or the electromechanical device equipped with frequency converter. Its core function is to change the fixed AC voltage and frequency into adjustable voltage and frequency. By adjusting the power frequency of motor, the frequency converter can control the speed and power output of motor. Variable frequency machine with its advantages of high efficiency, energy saving, improving production efficiency, prolonging equipment life and strong adaptability, has been widely used in various industries.

[0003] In order to improve the convenience of use, the pull rod and the roller design are often added on the variable frequency machine box. However, this change may need additional space to place the pull rod and its related connecting components. This undoubtedly puts forward more stringent challenges to the overall layout and design of the variable frequency machine, especially in those application scenarios where space resources are particularly tight, which is particularly prominent. Therefore, we propose a double pull rod structure of variable frequency machine to solve the above-mentioned problems. SUMMARY

[0004] The utility model aims at providing a double pull rod structure of variable frequency machine to solve the above-mentioned problems in the background art. In order to improve the convenience of use, the pull rod and the roller design are often added on the variable frequency machine box. However, this change may need additional space to place the pull rod and its related connecting components. This undoubtedly puts forward more stringent challenges to the overall layout and design of the variable frequency machine, especially in those application scenarios where space resources are particularly tight, which is particularly prominent.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A double pull rod structure of variable frequency machine, comprising a variable frequency box body, two racks are slidably installed at both ends of one side of the top of the variable frequency box body, two gear rollers are respectively arranged on one side of the two racks, an installation side cover is arranged on the other side of the rack, a rack spring is arranged at one end of the rack close to each other, two groups of folding rod components are respectively arranged on one side of the two gear rollers close to each other, a limiting rope is arranged on the gear roller, a button pin component is arranged on the installation side cover, an installation top cover is fixedly arranged on the top of the installation side cover, and a pull rod is arranged on the top of the two groups of folding rod components.

[0007] The folding rod component comprises two folding rods, and a folding block is rotatably connected between the two folding rods.

[0008] Further, the two gear winding rollers comprise a roller mounting seat, a winding roller is rotationally connected to the inner side of the top of the roller mounting seat, the roller mounting seat is fixedly connected with the frequency conversion box, one end of the winding roller is fixedly connected with a gear through the roller mounting seat, one side of the gear is meshingly connected with a rack, and the bottom of the mounting side cover is fixedly connected with the frequency conversion box.

[0009] Further, the rack spring is fixedly connected with the frequency conversion box at the middle portion, both ends of the rack spring are fixedly connected with two racks respectively, the button pin component comprises a pin mounting rod, a button is fixedly arranged on one end of the pin mounting rod through the mounting side cover, a pin spring is arranged on the pin mounting rod, two movable pins are symmetrically arranged at the bottom of the pin mounting rod, the pin mounting rod is slidingly connected with the mounting side cover, one end of the pin spring is fixedly connected with the pin mounting rod, the other end of the pin spring is fixedly connected with the mounting side cover, the top of the two movable pins is rotationally connected with the pin mounting rod on one side close to each other, and the bottom of the movable pin is movably connected with the rack.

[0010] Further, the bottom folding rods are rotationally connected with both ends of the frequency conversion box respectively, and the top folding rods are rotationally connected with both ends of the pull rod respectively.

[0011] Further, one end of the limiting rope is fixedly connected with the winding roller, the other end of the limiting rope is fixedly connected with the bottom of the pull rod through the folding block, and the limiting rope is slidingly connected with the folding block.

[0012] Further, two rollers are rotationally connected to the bottom of the frequency conversion box on both sides respectively.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] The utility model discloses a button pin component is pressed, and the rack of two ends is loosened, and the rack spring pushes the rack of two ends, and further pushes the gear, drives the winding roller to gather the limiting rope, further drives the folding rod component of the bottom two ends of the pull rod to fold and compress, and the pull rod is stored, and the occupied space is small, is convenient for installation, and it is convenient for extending different distances, and moves the frequency converter. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the whole structure schematic diagram of the utility model;

[0016] Figure 2 It is the gear winding roller mounting structure schematic diagram of the utility model;

[0017] Figure 3 It is the folding rod component mounting structure schematic diagram of the utility model;

[0018] Figure 4 It is the button pin component mounting structure schematic diagram of the utility model;

[0019] 1, frequency conversion box; 2, rack; 3, gear winding roller; 301, roller mounting seat; 302, winding roller; 303, gear; 4, installation side cover; 5, rack spring; 6, folding rod part; 601, folding rod; 602, folding block; 7, limiting rope; 8, button pin part; 801, pin mounting rod; 802, button; 803, pin spring; 804, movable pin; 9, installation top cover; 10, pull rod; 11, roller. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: a double pull rod structure of frequency conversion machine, including frequency conversion box 1, two racks 2 are slidably installed in the both ends of one side of the top of frequency conversion box 1, two racks 2 one side is respectively provided with two gear winding rollers 3, rack 2 other side is provided with installation side cover 4, rack 2 is provided with rack spring 5 in the end of mutual approach, two gear winding rollers 3 are provided with two groups of folding rod parts 6 in the side of mutual approach, gear winding roller 3 is provided with limiting rope 7, installation side cover 4 is provided with button pin part 8, installation top cover 9 is fixedly provided on the top of installation side cover 4, two groups of folding rod parts 6 are provided with pull rod 10 on the top;

[0022] Folding rod part 6 includes two folding rods 601, and folding block 602 is rotatably connected between the two folding rods 601.

[0023] Two gear winding rollers 3 include roller mounting seat 301, winding roller 302 is rotatably connected to the inner side of the top of roller mounting seat 301, roller mounting seat 301 is fixedly connected with frequency conversion box 1, gear 303 is fixedly connected to one end of winding roller 302 through roller mounting seat 301, gear 303 is meshingly connected with rack 2 on one side, installation side cover 4 is fixedly connected with frequency conversion box 1 on the bottom. In the present example, winding roller 302 is arranged, which is convenient for storing limiting rope 7, and in turn drives folding rod part 6 at the both ends of the bottom of pull rod 10 to complete storage.

[0024] The middle part of the rack spring 5 is fixedly connected with the variable frequency box body 1, both ends of the rack spring 5 are fixedly connected with two racks 2 respectively, the button pin component 8 comprises a pin mounting rod 801, a button 802 is fixedly arranged at one end of the pin mounting rod 801 through the mounting side cover 4, a pin spring 803 is arranged on the pin mounting rod 801, two movable pins 804 are symmetrically arranged at the bottom of the pin mounting rod 801, the pin mounting rod 801 is slidably connected with the mounting side cover 4, one end of the pin spring 803 is fixedly connected with the pin mounting rod 801, the other end of the pin spring 803 is fixedly connected with the mounting side cover 4, the top of the two movable pins 804 is rotatably connected with one side of the pin mounting rod 801, and the bottom of the movable pin 804 is movably connected with the rack 2. In the example, the movable pin 804 is arranged, the rack spring 5 can be controlled, the elastic rack 4 is rebounded, and then the storage pull rod 10 is controlled.

[0025] The bottom folding rod 601 is rotatably connected with both ends of the variable frequency box body 1 respectively, and the top folding rod 601 is rotatably connected with both ends of the pull rod 10 respectively.

[0026] One end of the limiting rope 7 is fixedly connected with the winding roller 302, the other end of the limiting rope 7 is fixedly connected with the bottom of the pull rod 10 through the folding block 602, and the limiting rope 7 is slidably connected with the folding block 602. In the example, the limiting rope 7 is arranged, the folding rod component 6 can be pulled tight, and the stretching or folding of the folding rod component 6 is avoided.

[0027] Two rollers 11 are rotatably connected to the bottom of the variable frequency box body 1 on both sides respectively. In the example, the two rollers 11 are arranged, and the variable frequency box body 1 is conveniently moved.

[0028] Working principle: when the variable frequency box body 1 needs to be moved, the pull rod 10 is pulled out, then both ends of the folding rod component 6 are unfolded, the limiting rope 7 is further driven, the limiting rope 7 drives the upper gear 303 of the winding roller 302 to rotate, then the rack 2 slides on the variable frequency box body 1, the movable pin 804 is rotated, the rack spring 5 is compressed, the rack spring 5 is compressed to the bottom, the rack 2 stops sliding, the gear 303 stops rotating, the winding roller 302 stops rotating, the limiting rope 7 is fixed, the both ends of the folding rod component 6 are tightened, and then the top pull rod 10 is further fixed, so that the movement is avoided. When the pull rod 10 needs to be stored, the button 802 is pushed, the pin spring 803 is elongated, the two movable pins 804 are withdrawn from the rack 2, the rack spring 5 pushes out the two racks 2 to both ends, then the winding roller 302 is rotated on the gear 303, the limiting rope 7 is retracted, and then the folding rod component 6 is quickly stored.

[0029] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A double pull rod structure of a variable frequency machine, characterized by: The utility model provides a variable frequency box (1), two rack gears (2) are slidably installed on the both ends of one side of the top of variable frequency box (1), two gear rollers (3) are arranged on one side of two rack gears (2) respectively, the rack gear (2) is provided with the installation side cover (4) on the other side, the rack gear (2) is provided with rack spring (5) on the end of mutual approach, two gear rollers (3) are provided with two groups of folding rod components (6) on the side of mutual approach respectively, the gear roller (3) is provided with the limiting rope (7), the installation side cover (4) is provided with button catch component (8), the installation side cover (4) is fixedly provided with the installation top cover (9) on the top, two groups of folding rod components (6) are provided with pull rod (10) on the top. The folding rod component (6) comprises two folding rods (601), and a folding block (602) is rotatably connected between the two folding rods (601).

2. The double-pull rod structure of a variable frequency machine according to claim 1, wherein: The two gear rollers (3) comprise a roller mounting seat (301), a winding roller (302) is rotatably connected to the inner side of the top of the roller mounting seat (301), the roller mounting seat (301) is fixedly connected with the variable frequency box (1), one end of the winding roller (302) penetrates through the roller mounting seat (301) and is fixedly connected with a gear (303), one side of the gear (303) is meshedly connected with the rack gear (2), and the bottom of the installation side cover (4) is fixedly connected with the variable frequency box (1).

3. The double-pull rod structure of a variable frequency machine according to claim 2, wherein: The rack spring (5) is fixedly connected with the variable frequency box (1) in the middle, and the two ends of the rack spring (5) are fixedly connected with the two rack gears (2) respectively, the button catch component (8) comprises a catch mounting rod (801), one end of the catch mounting rod (801) penetrates through the installation side cover (4) and is fixedly provided with a button (802), a catch spring (803) is arranged on the catch mounting rod (801), two movable catches (804) are symmetrically arranged at the bottom of the catch mounting rod (801), the catch mounting rod (801) is slidably connected with the installation side cover (4), one end of the catch spring (803) is fixedly connected with the catch mounting rod (801), the other end of the catch spring (803) is fixedly connected with the installation side cover (4), the top of the two movable catches (804) is rotatably connected with the catch mounting rod (801) on the side of mutual approach, and the bottom of the movable catch (804) is movably connected with the rack gear (2).

4. The double-pull rod structure of a variable frequency machine according to claim 3, wherein: The bottom folding rod (601) is rotatably connected with the variable frequency box (1) respectively, and the top folding rod (601) is rotatably connected with the pull rod (10) respectively.

5. The double-pull rod structure of a variable frequency machine according to claim 4, wherein: One end of the limiting rope (7) is fixedly connected with the winding roller (302), the other end of the limiting rope (7) penetrates through the folding block (602) and is fixedly connected with the bottom of the pull rod (10), and the limiting rope (7) is slidably connected with the folding block (602).

6. The dual tie rod structure of a variable frequency machine according to claim 1, wherein: Two rollers (11) are rotatably connected to the bottom of the variable frequency box (1) respectively.

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