Protection device of speed regulator

Abstract

The protection device comprises a speed regulator body and a fixed shell, a connecting assembly is arranged between the speed regulator body and the fixed shell, the fixed shell is rotatably connected with a rotating rod, the circumferential outer wall of the rotating rod is fixedly connected with a rotating shell, one side of the speed regulator body is provided with a mounting groove, and the mounting groove is fixedly connected with the rotating shell. A first magnetic block is fixedly connected into the mounting groove, a second magnetic block is fixedly connected to one side of the rotating shell, and the second magnetic block and the first magnetic block are attracted. According to the utility model, the operation surface of the speed regulator body can be covered and protected through the mutual cooperation of the fixed shell and the rotating shell, the protective cover composed of the fixed shell and the rotating shell can be disassembled through the arranged connecting assembly, and the rotating shell can be bounced by applying torsion to the rotating shell, so that the speed regulator body is protected. And a worker does not need to hold the speed regulator with hands, so that the worker can operate the speed regulator body conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of speed regulators, in particular to a protection device for speed regulators. Background Art

[0002] The motor speed regulator adjusts the voltage, current or frequency of the motor to achieve precise control of the motor speed and output power. It is responsible for adjusting the motor speed and torque to meet the needs of various complex processes.

[0003] After searching, a Chinese patent with publication number CN207819810U discloses a new type of motor speed regulator. The above device automatically adjusts the motor speed through a programmable controller to prevent the temperature inside the motor from being too high when the motor shaft rotates at high speed. However, the speed regulator knob of the device is exposed to the outside during operation. If other staff members operate it, it will affect the working state of the device and thus affect the work progress. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a protective device for a speed regulator.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A protective device for a speed regulator comprises a speed regulator body and a fixed shell, a connecting assembly is provided between the speed regulator body and the fixed shell, a rotating rod is rotatably connected to the fixed shell, a circumferential outer wall of the rotating rod is fixedly connected to a rotating shell, a mounting groove is provided on one side of the speed regulator body, a first magnetic block is fixedly connected in the mounting groove, a second magnetic block is fixedly connected to one side of the rotating shell, and the second magnetic block is adsorbed to the first magnetic block.

[0007] As a further solution of the utility model, the connecting component is two fixed blocks, the two fixed blocks are respectively fixed on the inner walls on both sides of the fixed shell, one side of the two fixed blocks is provided with a card slot, one side of the speed regulator body is fixedly connected to a fixed plate, one side of the fixed plate is provided with two slide grooves, and the two slide grooves are symmetrically distributed on one side of the fixed plate, and sliders are slidably connected in the two slide grooves, one side of the slider is fixedly connected to a card rod, and one end of the card rod passes through one side of the fixed plate and is inserted into the card slot.

[0008] As a further solution of the utility model, one side of the two sliding blocks is fixedly connected with a spring, and the other ends of the two springs are fixed to an inner wall of one side of the sliding groove.

[0009] As a further solution of the utility model, two avoidance grooves are opened on one side of the rotating shell, and the two avoidance grooves are symmetrically distributed on one side of the rotating shell. Two torsion springs are fixedly connected to the fixed shell, and the other end of the torsion spring is fixed to the circumferential outer wall of the rotating rod.

[0010] As a further solution of the utility model, the torsion force of the torsion spring is smaller than the magnetic force between the first magnetic block and the second magnetic block.

[0011] As a further solution of the utility model, mounting holes are provided at four corners of one side of the speed regulator body.

[0012] As a further solution of the utility model, a rubber sleeve is fixedly connected to the sliding block, and the surface of the rubber sleeve is provided with anti-slip grooves.

[0013] As a further solution of the utility model, a clearance opening is opened on one side of the rotating shell, and a transparent plate is arranged in the clearance opening.

[0014] The beneficial effects of the utility model are:

[0015] 1. In the utility model, the fixed shell and the rotating shell cooperate with each other, so that the operating surface of the speed regulator body can be covered and protected, thereby preventing other staff from improperly operating the speed regulator body and affecting the working progress of the device. The rotating shell is ensured to be in a closed state through the interaction between the first magnetic block and the second magnetic block.

[0016] 2. In the utility model, the protective cover composed of the fixed shell and the rotating shell can be disassembled through the provided connecting assembly. If there is no need to protect the speed regulator body, it can be removed to facilitate the staff to directly operate the speed regulator body.

[0017] 3. In the utility model, a torsion spring is provided to apply a torque to the rotating shell to make the rotating shell bounce up, and the staff does not need to hold it by hand, which makes it convenient for the staff to operate the speed regulator body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional structural diagram of a speed regulator protection device proposed by the utility model;

[0019] Figure 2 A schematic diagram of the cross-sectional structure of a housing of a speed regulator protection device proposed by the utility model;

[0020] Figure 3 This is a partial enlarged structural schematic diagram of a speed regulator protection device proposed by the utility model;

[0021] Figure 4This is a schematic diagram of the enlarged structure of part A of a speed regulator protection device proposed by the utility model;

[0022] Figure 5 This is a schematic diagram of the enlarged structure of part B of a speed regulator protection device proposed by the utility model.

[0023] In the figure: 1. speed regulator body; 2. fixed shell; 3. rotating shell; 4. transparent plate; 5. rotating rod; 6. first magnetic block; 7. second magnetic block; 8. avoidance groove; 9. torsion spring; 10. mounting hole; 11. fixed block; 12. fixed plate; 13. slide groove; 14. slider; 15. clamping rod; 16. clamping groove; 17. spring; 18. rubber sleeve. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, other embodiments obtained by ordinary technicians in this field without making creative work are all within the scope of protection of the utility model.

[0025] Reference Figure 1-Figure 5 A protective device for a speed regulator comprises a speed regulator body 1 and a fixed shell 2, a connecting assembly is provided between the speed regulator body 1 and the fixed shell 2, a rotating rod 5 is rotatably connected to the fixed shell 2, a rotating shell 3 is welded to the circumferential outer wall of the rotating rod 5, and the operating surface of the speed regulator body 1 can be covered by the mutual cooperation of the fixed shell 2 and the rotating shell 3, so as to protect it, thereby preventing other staff from improperly operating the speed regulator body 1 and affecting the working progress of the device, a mounting groove is provided on one side of the speed regulator body 1, a first magnetic block 6 is bonded in the mounting groove, a second magnetic block 7 is bonded to one side of the rotating shell 3, and the second magnetic block 7 is adsorbed to the first magnetic block 6, and the rotating shell 3 is ensured to be in a closed state by the interaction between the first magnetic block 6 and the second magnetic block 7.

[0026] In particular, the connecting assembly is two fixed blocks 11, the two fixed blocks 11 are respectively fixed on the inner walls of the two sides of the fixed shell 2, one side of the two fixed blocks 11 is provided with a card slot 16, one side of the speed regulator body 1 is fixedly connected to a fixed plate 12 by bolts, one side of the fixed plate 12 is provided with two slide grooves 13, and the two slide grooves 13 are symmetrically distributed on one side of the fixed plate 12, the two slide grooves 13 are slidably connected to a slider 14, one side of the slider 14 is fixedly connected to a card rod 15 by bolts, and the card rod 15 is One end passes through one side of the fixed plate 12 and is inserted into the card slot 16, and the protective cover composed of the fixed shell 2 and the rotating shell 3 can be disassembled. If the speed regulator body 1 does not need to be protected, it can be removed to facilitate the staff to directly operate the speed regulator body 1. One side of the two sliders 14 is welded with a spring 17, and the other ends of the two springs 17 are fixed to the inner wall of one side of the slide groove 13. The spring 17 is provided to apply elastic force to the slider 14, so that the card rod 15 is always inserted in the card slot 1 6, one side of the rotating shell 3 is provided with two avoidance grooves 8, and the two avoidance grooves 8 are symmetrically distributed on one side of the rotating shell 3, two torsion springs 9 are welded on the fixed shell 2, and the other end of the torsion spring 9 is fixed to the circumferential outer wall of the rotating rod 5, and the torsion spring 9 can apply a torsion force to the rotating shell 3, so that the rotating shell 3 bounces up without the need for the staff to hold it by hand, which is convenient for the staff to operate the speed regulator body 1, and the torsion force of the torsion spring 9 is smaller than the magnetic force between the first magnetic block 6 and the second magnetic block 7, so that when the speed regulator body 1 is operated When performing protection, the rotating shell 3 is not bounced up, so that the operating surface of the speed regulator body 1 is exposed. Mounting holes 10 are provided at four corners of one side of the speed regulator body 1, which can facilitate the installation and fixation of the speed regulator body 1. A rubber sleeve 18 is bonded to the slider 14 to increase the softness of one end of the slider 14, and the surface of the rubber sleeve 18 is provided with anti-slip grooves. The friction force is increased by the anti-slip grooves. A avoidance opening is provided on one side of the rotating shell 3, and a transparent plate 4 is provided in the avoidance opening to facilitate the staff to observe the gear position of the equipment speed regulation.

[0027] The utility model is divided into the following steps when used:

[0028] S1: Pull the two sliders 14 at the same time, so that the two sliders 14 move toward each other along the slide groove 13, until the clamping rod 15 is retracted into the slide groove 13, and the spring 17 is compressed;

[0029] S2: Align the two fixing blocks 11 on the fixing shell 2 with the two ends of the fixing plate 12 respectively, and align the center position of the clamping slot 16 with the center position of the clamping rod 15;

[0030] S3: Release the two sliders 14 at the same time, and the spring 17 releases its elastic force to push the slider 14 to move, so that the card rod 15 is inserted into the card slot 16;

[0031] S4: Rotate the rotating shell 3 to make the first magnetic block 6 and the second magnetic block 7 attract each other, and at this time, the torsion spring 9 is stressed.

[0032] In addition, the terms "installation", "setting", "connection" and "socketing" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements or components. Those skilled in the art can understand the specific meanings of the above terms in this application according to specific circumstances.

Claims

1. A protective device for a speed regulator, comprising a speed regulator body (1) and a fixed shell (2), characterized in that: A connecting assembly is provided between the speed regulator body (1) and the fixed shell (2); a rotating rod (5) is rotatably connected to the fixed shell (2); the circumferential outer wall of the rotating rod (5) is fixedly connected to the rotating shell (3); a mounting groove is provided on one side of the speed regulator body (1); a first magnetic block (6) is fixedly connected in the mounting groove; a second magnetic block (7) is fixedly connected to one side of the rotating shell (3); and the second magnetic block (7) is attracted to the first magnetic block (6).

2. A speed regulator protection device according to claim 1, characterized in that: The connecting assembly comprises two fixed blocks (11), the two fixed blocks (11) are respectively fixed on the inner walls on both sides of the fixed shell (2), one side of the two fixed blocks (11) is provided with a card slot (16), one side of the speed regulator body (1) is fixedly connected to the fixed plate (12), one side of the fixed plate (12) is provided with two slide grooves (13), and the two slide grooves (13) are symmetrically distributed on one side of the fixed plate (12), and the two slide grooves (13) are slidably connected with a slider (14), one side of the slider (14) is fixedly connected to a card rod (15), and one end of the card rod (15) passes through one side of the fixed plate (12) and is inserted into the card slot (16).

3. A speed regulator protection device according to claim 2, characterized in that: One side of the two sliding blocks (14) is fixedly connected to a spring (17), and the other ends of the two springs (17) are fixed to an inner wall of one side of the sliding groove (13).

4. A speed regulator protection device according to claim 1, characterized in that: Two avoidance grooves (8) are provided on one side of the rotating shell (3), and the two avoidance grooves (8) are symmetrically distributed on one side of the rotating shell (3); two torsion springs (9) are fixedly connected to the fixed shell (2), and the other end of the torsion spring (9) is fixed to the circumferential outer wall of the rotating rod (5).

5. A speed regulator protection device according to claim 4, characterized in that: The torsion force of the torsion spring (9) is smaller than the magnetic force between the first magnetic block (6) and the second magnetic block (7).

6. A speed regulator protection device according to claim 2, characterized in that: Mounting holes (10) are provided at four corners of one side of the speed regulator body (1).

7. A speed regulator protection device according to claim 2, characterized in that: The sliding block (14) is fixedly connected to a rubber sleeve (18), and the surface of the rubber sleeve (18) is provided with anti-slip grooves.

8. A speed regulator protection device according to claim 4, characterized in that: A position avoidance opening is provided on one side of the rotating shell (3), and a transparent plate (4) is provided in the position avoidance opening.

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