Electromagnetic switch capable of automatically braking

Abstract

The utility model discloses an electromagnetic switch capable of automatically braking, which relates to the technical field of electromagnetic switches and comprises a fixed underframe, a damping device is arranged at the bottom of the fixed underframe when the bottom is stressed during movement, and wheels are arranged on one side of the damping device and positioned below the fixed underframe. A clamping block with a clamping effect is arranged on the bottom face of the fixing bottom frame, an electromagnetic brake block capable of electromagnetically controlling the brake function is arranged on the bottom face of the fixing bottom frame, and the electromagnetic brake block and the clamping block have the clamping effect. The damping device is used for enabling the wheel to stretch the damping spring on the rear side for shock absorption when the wheel is in a complex road section, the positive electrode and the negative electrode attract each other through a power source during braking, so that the braking vane brakes on the wheel, and the situation that most electromagnetic switches damage braking parts when the wheel is in an irregular road section is avoided. And the braking vane can be replaced at any time, so that potential safety hazards are greatly reduced, and safety guarantee is provided for users.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic switches, in particular to an electromagnetic switch capable of automatic braking. Background Art

[0002] An electromagnetic switch is a switch controlled by an electromagnet, that is, a combination of an electromagnet and a switch. When the electromagnet coil is energized, electromagnetic attraction is generated, and the movable iron core pushes or pulls the switch contacts to close, thereby connecting the controlled circuit. The electromagnetic switch is a control switch on the motor. When the electromagnetic switch switches from the closed state to the open state, the electromagnetic switch will control the motor to turn off. When the motor is turned off, the rotor on the motor will continue to rotate for a period of time due to inertia.

[0003] After searching, the applicant found that a Chinese patent disclosed an "electromagnetic switch" with a publication (announcement) number of "CN201629271U", which includes an electromagnet part and a switch part. The electromagnet part includes a cylindrical coil support with an iron core inside, and a coil is wound on the coil support. The switch part is arranged at the end of the coil support, including a cover plate and two static contacts penetrated on the cover plate. A moving contact rod is arranged between the static contact and the iron core, and a moving contact piece is arranged on the moving contact rod. A reset mechanism is also arranged on the moving contact rod. The inner end of the static contact is fixedly connected with a static contact piece, and the static contact piece is made of alloy copper material. The moving contact rod can move under the drive of the iron core so that the moving contact piece contacts with the two static contact pieces at the same time. The electromagnetic switch has the advantages of being waterproof, dustproof, avoiding unnecessary wear and high durability.

[0004] However, when most of the existing electromagnetic switches have the braking function, the wheels will be impacted when moving, which will bring impact in the opposite direction to the brakes and other braking components, causing wear and tear. During daily use, the brakes will also be worn out. It is also inconvenient to replace brake pads or other brake parts, which will pose a huge safety hazard. Utility Model Content

[0005] The purpose of the utility model is to provide an electromagnetic switch capable of automatic braking, so as to solve the problem that most of the existing electromagnetic switches proposed in the above background technology will be subjected to impact when the wheels are moving when facing the braking function, which will bring impact in the opposite direction to the brakes and other braking components, thereby causing wear and tear. In daily use, the brakes will also be worn out. At the same time, it is not convenient to replace brake pads or other brake parts, which will pose a great safety hazard.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electromagnetic switch capable of automatic braking, comprising a fixed base frame, the bottom of the fixed base frame is provided with a shock absorbing device for when the bottom moves under force, one side of the shock absorbing device is located below the fixed base frame and is provided with a wheel, the bottom surface of the fixed base frame is provided with a clamping block with a clamping effect, the bottom surface of the fixed base frame is provided with an electromagnetic brake block capable of electromagnetically controlling the braking function, and the electromagnetic brake block and the clamping block have a clamping effect.

[0007] Preferably, the shock absorbing device is arranged on one side of the fixed base frame, a shock absorbing spring is arranged inside the shock absorbing device, and a telescopic rod is arranged inside the shock absorbing spring.

[0008] Preferably, the bottom of the shock absorbing spring is rotatably connected to a rotating disk, the center of the rotating disk is rotatably connected to both sides of the bottom end of the fixed base frame, and the center of the wheel is rotatably connected to the side of the rotating disk away from the shock absorbing device.

[0009] Preferably, the clamping block is fixedly connected to the bottom surface of the fixed base frame, and a clamping column is fixedly connected to one side of the clamping block.

[0010] Preferably, the electromagnetic brake block is clamped and connected to one side of the clamping column, a receiving block is provided on the top of the electromagnetic brake block, and a receiving groove is provided inside the receiving block.

[0011] Preferably, a clamping nut is provided on one side of the receiving block, and the clamping nut is located inside the receiving groove and is meshedly connected with one end of the clamping column.

[0012] Preferably, the electromagnetic brake block is fixedly connected to the bottom surface of the receiving block and is located on the top of the wheel. A switch connecting line is provided on one side of the top surface of the electromagnetic brake block. A working cavity is opened inside the electromagnetic brake block. Electric slide rails are provided on both sides of the inner wall of the working cavity. The two electric slide rails are internally connected with an electric block in a sliding manner. A brake plate is fixedly connected to the bottom surface of the electric block. The bottom end of the brake plate passes through the bottom surface of the working cavity and extends to the outside where it is fixedly connected with an anti-sliding block.

[0013] Preferably, positive electrode blocks are fixedly connected to both sides of the bottom surface of the inner wall of the working cavity, and negative electrode blocks used in conjunction with the positive electrode blocks are provided on both sides of the electric slide rail located on the brake plate.

[0014] The technical effects and advantages of the utility model are as follows: when the wheel encounters a complex road section, the shock absorbing device is used to stretch the rear shock absorbing spring of the wheel for shock absorption. When braking, the two positive and negative poles will attract each other using the power supply so that the brake plate brakes on the wheel, avoiding most electromagnetic switches from damaging the brake components when the wheel encounters an irregular road section, and the brake plate can be replaced at any time, which greatly reduces safety hazards and provides safety protection for users. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0016] Figure 2 It is a schematic diagram of the overall front structure of the utility model.

[0017] Figure 3 For the utility model Figure 2 Schematic diagram of the enlarged structure of part A in the middle.

[0018] Figure 4 It is a schematic diagram of the three-dimensional structure of the electromagnetic brake block of the utility model.

[0019] Figure 5 It is a schematic diagram of the front cross-sectional structure of the electromagnetic brake block of the utility model.

[0020] In the figure: 1, fixed chassis; 2, shock absorbing device; 3, wheel; 4, clamping block; 5, electromagnetic brake block; 201, shock absorbing spring; 202, telescopic rod; 203, rotating disk; 401, clamping column; 402, receiving block; 403, receiving groove; 404, clamping nut; 501, switch connecting line; 502, working cavity; 503, electric slide rail; 504, electric block; 505, negative electrode block; 506, positive electrode block; 507, brake plate; 508, anti-sliding plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The utility model provides Figure 1-5The electromagnetic switch capable of automatic braking shown in the figure comprises a fixed base frame 1, the bottom of the fixed base frame 1 is provided with a shock absorbing device 2 for when the bottom movement is subjected to force, one side of the shock absorbing device 2 is located below the fixed base frame 1 and is provided with a wheel 3, the bottom surface of the fixed base frame 1 is provided with a clamping block 4 with a clamping effect, the bottom surface of the fixed base frame 1 is provided with an electromagnetic brake block 5 capable of electromagnetically controlling the braking function, and the electromagnetic brake block 5 and the clamping block 4 have a clamping effect, when the wheel 3 encounters a complex road section, the shock absorbing device 2 is used to stretch the rear shock absorbing spring 201 of the wheel 3 for shock absorption, and when braking, the two positive and negative poles will use the power supply to attract each other so that the brake plate 507 brakes on the wheel 3, avoiding most electromagnetic switches from damaging the brake components when the wheel 3 encounters an irregular road section, and the brake plate 507 can be replaced at any time, so that the safety hazard is greatly reduced, providing safety protection for the user.

[0023] like Figure 1-2 As shown, the shock absorbing device 2 is arranged on one side of the fixed base frame 1, and a shock absorbing spring 201 is arranged inside the shock absorbing device 2, and a telescopic rod 202 is arranged inside the shock absorbing spring 201. The bottom of the shock absorbing spring 201 is rotatably connected with a rotating disk 203, and the rotating disk 203 can be connected to the front wheel 3. At the same time, the center of the rotating disk 203 is rotatably connected to the bottom of the fixed base frame 1, so that the wheel 3 is more stable during use. The center of the rotating disk 203 is rotatably connected to both sides of the bottom end of the fixed base frame 1, and the center of the wheel 3 is rotatably connected to the side of the rotating disk 203 away from the shock absorbing device 2. When the wheel 3 is lifted by a bump, the rear will pull the telescopic rod 202 through the rotating disk 203 to reset it for shock absorption.

[0024] like Figure 3-5As shown, the clamping block 4 is fixedly connected to the bottom surface of the fixed base frame 1, and a clamping column 401 is fixedly connected to one side of the clamping block 4. A threaded groove matching the clamping nut 404 is provided inside the clamping column 401. When the clamping nut 404 rotates, it can enter the inside of the clamping column 401 to play a clamping role. The electromagnetic brake block 5 is clamped and connected to one side of the clamping column 401. A receiving block 402 is provided on the top of the electromagnetic brake block 5. A receiving groove 403 is provided inside the receiving block 402. A clamping nut 404 is provided on one side of the receiving block 402. The clamping nut 404 is located inside the receiving groove 403 and is meshed with one end of the clamping column 401. The electromagnetic brake block 5 is fixedly connected to the bottom surface of the receiving block 402 and is located on the top of the wheel 3. One side of the top surface of the electromagnetic brake block 5 is provided with an opening The switch connection line 501 can be connected to the power supply to activate the braking effect. A working cavity 502 is opened inside the electromagnetic brake block 5. Electric slide rails 503 are provided on both sides of the inner wall of the working cavity 502. The two electric slide rails 503 are slidably connected inside with an electric block 504. The bottom surface of the electric block 504 is fixedly connected with a brake plate 507. The bottom end of the brake plate 507 passes through the bottom surface of the working cavity 502 and extends to the outside and is fixedly connected with an anti-sliding block 508. Positive blocks 506 are fixedly connected on both sides of the bottom surface of the inner wall of the working cavity 502. Negative blocks 505 used in conjunction with the positive block 506 are provided on both sides of the electric slide rails 503 located on the brake plate 507. The two positive blocks 506 and the two negative blocks 505 can attract each other using the power supply.

[0025] Working principle of the utility model: when using the device, the wheel 3 will be lifted upward if it encounters an irregular road section, and the rotating disk 203 connected to the central axis of the wheel 3 is rotatably connected, and its rear end is rotatably connected to the telescopic rod 202 in the shock-absorbing spring 201, so that when the wheel 3 is bumped, the rear will pull the telescopic rod 202 through the rotating disk 203 to reset it for shock absorption, so as not to damage the shock-absorbing device 2 provided on the top of the wheel 3. When braking is needed, the switch connecting line 501 provided on the top of the electromagnetic brake block 5 receives the braking command, and the two positive blocks 506 inside will absorb the two negative blocks 505, and the electric slide rails 503 provided on both sides will also form a boosting effect for the electric block 504, so that the electric block 504 drives the brake plate 507 to move downward, so that the bottom anti-sliding block 508 contacts the wheel 3 to form an effective braking.

[0026] When the brake plate 507 and the anti-sliding block 508 are subjected to physical wear and tear, the clamping nut 404 only needs to be rotated and the clamping nut 404 will move out from the receiving groove 403, thereby releasing the connection state of the clamping column 401 that has entered the receiving groove 403, and finally successfully removing the electromagnetic brake block 5 for inspection and maintenance. The original text highlights the innovative structure without elaborating on the prior art.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electromagnetic switch capable of automatic braking, comprising a fixed base frame (1), characterized in that: The bottom of the fixed base frame (1) is provided with a shock absorbing device (2) for when the bottom moves under force, a wheel (3) is provided on one side of the shock absorbing device (2) located below the fixed base frame (1), a clamping block (4) with a clamping effect is provided on the bottom surface of the fixed base frame (1), and an electromagnetic brake block (5) capable of electromagnetically controlling a brake function is provided on the bottom surface of the fixed base frame (1), and the electromagnetic brake block (5) and the clamping block (4) have a clamping effect.

2. The electromagnetic switch capable of automatic braking according to claim 1, characterized in that: The shock absorbing device (2) is arranged on one side of the fixed base frame (1), a shock absorbing spring (201) is arranged inside the shock absorbing device (2), and a telescopic rod (202) is arranged inside the shock absorbing spring (201).

3. The electromagnetic switch capable of automatic braking according to claim 2, characterized in that: The bottom of the shock absorbing spring (201) is rotatably connected to a rotating disk (203), the center of the rotating disk (203) is rotatably connected to both sides of the bottom end of the fixed base frame (1), and the center of the wheel (3) is rotatably connected to a side of the rotating disk (203) away from the shock absorbing device (2).

4. The electromagnetic switch capable of automatic braking according to claim 1, characterized in that: The clamping block (4) is fixedly connected to the bottom surface of the fixed base frame (1), and a clamping column (401) is fixedly connected to one side of the clamping block (4).

5. The electromagnetic switch capable of automatic braking according to claim 1, characterized in that: The electromagnetic brake block (5) is clamped and connected to one side of the clamping column (401), and a receiving block (402) is provided on the top of the electromagnetic brake block (5), and a receiving groove (403) is provided inside the receiving block (402).

6. The electromagnetic switch capable of automatic braking according to claim 5, characterized in that: A clamping nut (404) is provided on one side of the receiving block (402), and the clamping nut (404) is located inside the receiving groove (403) and is meshedly connected with one end of the clamping column (401).

7. The electromagnetic switch capable of automatic braking according to claim 1, characterized in that: The electromagnetic brake block (5) is fixedly connected to the bottom surface of the receiving block (402) and is located on the top of the wheel (3); a switch connection line (501) is provided on one side of the top surface of the electromagnetic brake block (5); a working cavity (502) is provided inside the electromagnetic brake block (5); electric slide rails (503) are provided on both sides of the inner wall of the working cavity (502); an electric block (504) is slidably connected inside the two electric slide rails (503); a brake plate (507) is fixedly connected to the bottom surface of the electric block (504); the bottom end of the brake plate (507) passes through the bottom surface of the working cavity (502) and extends to the outside where it is fixedly connected to an anti-sliding block (508).

8. The electromagnetic switch capable of automatic braking according to claim 7, characterized in that: Positive electrode blocks (506) are fixedly connected to both sides of the inner wall bottom surface of the working cavity (502), and negative electrode blocks (505) used in conjunction with the positive electrode blocks (506) are provided on both sides of the electric slide rail (503) located on the brake plate (507).

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