Electric switch tension spring installation tool

Abstract

The utility model discloses an electrical switch tension spring mounting tool, which belongs to the technical field of electrical switch corollary equipment and comprises a base, a rack is arranged on the upper end face of the base and can linearly reciprocate along the length direction of the base, and two mounting plates are oppositely arranged on the side walls of the base on two sides of the moving direction of the rack. A mounting shaft is arranged between the two mounting plates in a penetrating mode, a gear meshed with the rack is arranged on the mounting shaft, and a driving component used for driving the gear to rotate is arranged on the gear; a movable seat is arranged at the extending end of the rack, a movable limiting component is arranged on the lower end face of the movable seat, a fixed seat is arranged on the lower end face, away from the extending side of the rack, of the base, a fixed limiting component is arranged on the lower end face of the fixed seat, and hook portions at the two ends of the tension spring are hung on the movable limiting component and the fixed limiting component respectively. The utility model solves the problems that the spring is scratched and hurts people and the installation is strenuous when the tension spring of the electrical switch is installed in the prior art.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrical switch supporting equipment, and particularly relates to a tool for installing a pull spring of an electrical switch. Background Art

[0002] Electrical switches play a crucial role in electrical circuits and are used to control the on-off of circuits, thereby achieving the control of electrical equipment. The moving contact return spring inside the electrical switch is also called the reset spring. When the spring is subjected to an external force, it will deform and store potential energy; when the external force disappears, the spring will release the stored potential energy and return to its original shape. In an electrical switch, this process of deformation and recovery is used to achieve the automatic reset function of the moving contact. The moving contact return spring improves the reliability and service life of the switch through functions such as automatic reset, maintaining contact pressure, reducing arc generation, absorbing shock, and compensating for thermal expansion.

[0003] Currently, the installation of the moving contact return spring of electrical switches mostly uses hook pulling for installation. This method can scratch the spring and cause damage, shorten the service life of the pull spring and pose a safety hazard. During the stretching process, the spring is extremely easy to pop out and hurt people, and this installation method is relatively laborious and not convenient for operators to install. Summary of the Invention

[0004] Aiming at the problems existing in the prior art, the utility model provides a tool for installing a pull spring of an electrical switch, which can solve the problems of spring scratching, hurting people, and laborious installation when installing the pull spring of an electrical switch in the prior art.

[0005] The utility model is realized as follows: A tool for installing a pull spring of an electrical switch includes a base. A rack is arranged on the upper end surface of the base, and the rack can linearly reciprocate along the length direction of the base. Two mounting plates are oppositely arranged on the side walls of the base on both sides of the moving direction of the rack. An installation shaft is arranged through between the two mounting plates. A gear meshing with the rack is arranged on the installation shaft, and a driving member for driving the gear to rotate is arranged on the gear.

[0006] A moving seat is arranged at the extending end of the rack. A moving limiting member is arranged on the lower end surface of the moving seat. A fixed seat is arranged on the lower end surface of the base far from the extending side of the rack. A fixed limiting member is arranged on the lower end surface of the fixed seat. The hook parts at both ends of the pull spring are respectively hung on the moving limiting member and the fixed limiting member.

[0007] Further, the gear is a semi-tooth surface gear, the driving member is a force-applying rod, the teeth of the semi-tooth surface gear are arranged at the lower end part of the gear, and the force-applying rod is arranged at the upper end part of the gear.

[0008] Further, a hand-held rod is arranged on the upper end surface of the moving seat.

[0009] Furthermore, the movable limiting member and the fixed limiting member have the same structure, and both include two limiting columns arranged side by side. A gap for limiting the tension spring is formed between the two limiting columns.

[0010] Furthermore, the lower end surface of the movable limiting member is higher than the lower end surface of the fixed limiting member, forming a height difference. This structure can not only adapt to the structural configuration of the installation position, but also meet the requirements of different installation depths and adapt to the installation needs of various products.

[0011] Advantages and technical effects of the present utility model: Due to the adoption of the above technical solution, the problems existing in the prior art that the tension spring is scratched and injured during installation and the installation is laborious are solved. Through the gear, rack, base, movable seat and force - adding rod, the tension spring is pulled and stretched until it is installed in place, accurately installing the spring, effectively avoiding the problems of over - stretching the spring, scratching the spring and the spring coming out and injuring people; adopting this structure makes the overall structure more compact, reduces the axial dimension, and is convenient for the operator to carry and use. Description of the Drawings

[0012] Figure 1 is a three - dimensional view of the overall structure provided by an embodiment of the present utility model;

[0013] Figure 2 is a cross - sectional view of the overall structure provided by an embodiment of the present utility model.

[0014] In the figure: 1. Base; 2. Rack; 3. Mounting plate; 4. Gear; 5. Driving member; 6. Movable seat; 7. Movable limiting member; 8. Fixed seat; 9. Fixed limiting member; 10. Handheld rod. Detailed Embodiments

[0015] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the following embodiments are used to further describe the present utility model in detail. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0016] It should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0017] Such as Figure 1 and Figure 2As shown in the figure, the present application provides an installation tool for the pull spring of an electrical switch, which includes a base 1. A rack 2 is arranged on the upper end surface of the base 1. The rack 2 can linearly reciprocate along the length direction of the base 1. Two mounting plates 3 are oppositely arranged on the side walls of the base 1 on both sides of the moving direction of the rack 2. An installation shaft penetrates between the two mounting plates 3. A gear 4 meshing with the rack 2 is arranged on the installation shaft. A driving member 5 for driving the gear 4 to rotate is arranged on the gear 4.

[0018] A moving seat 6 is arranged at the extending end of the rack 2. A moving limit member 7 is arranged on the lower end surface of the moving seat 6. A fixed seat 8 is arranged on the lower end surface of the base 1 far from the extending side of the rack 2. A fixed limit member 9 is arranged on the lower end surface of the fixed seat 8. The hook parts at both ends of the pull spring are respectively hung on the moving limit member 7 and the fixed limit member 9.

[0019] Specifically, the gear 4 is a semi-tooth surface gear 4, and the driving member 5 is a force-applying rod. The teeth of the semi-tooth surface gear 4 are arranged at the lower end part of the gear 4, and the force-applying rod is arranged at the upper end part of the gear 4.

[0020] Preferably, a hand-held rod 10 is arranged on the upper end surface of the moving seat 6. One end of the hand-held rod 10 is vertically installed on the upper end surface of the moving seat 6, and the other end is bent towards the moving direction side of the moving seat 6.

[0021] Specifically, the moving limit member 7 and the fixed limit member 9 have the same structure, and both include two limit columns arranged side by side. A gap for limiting the pull spring is formed between the two limit columns.

[0022] Preferably, the lower end surface of the moving limit member 7 is higher than the lower end surface of the fixed limit member, forming a height difference. This structure can not only adapt to the structural configuration of the installation position, but also meet the requirements of different installation depths and adapt to the installation needs of various products.

[0023] Working process: Input torque from the force-applying rod, form a lever fulcrum through the gear 4 and the installation shaft, magnify the torque and output it to the rack 2, and then the rack 2 drives the moving seat 6 and the moving limit member 7 to pull the spring. It solves the problems in the prior art that the spring is scratched and people are injured during the installation of the pull spring of the electrical switch and the installation is laborious. Through the gear 4, the rack 2, the base 1, the moving seat 6 and the force-applying rod, the pull spring is pulled and stretched until it is installed in place to accurately install the spring, effectively avoiding the problems of over-pulling the spring, scratching the spring and the spring slipping out and injuring people.

[0024] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An electrical switch tension spring installation tool, characterized in that, It includes a base, on the upper end face of the base there is a rack, the rack can linearly reciprocate along the length direction of the base, on the side walls of the base on both sides of the moving direction of the rack, two mounting plates are oppositely arranged, between the two mounting plates there is a mounting shaft passing through, on the mounting shaft there is a gear meshing with the rack, on the gear there is a driving member for driving the gear to rotate; At the extending end of the rack there is a moving seat, on the lower end face of the moving seat there is a moving limiting member, on the lower end face of the base away from the extending side of the rack there is a fixed seat, on the lower end face of the fixed seat there is a fixed limiting member, the hook parts at both ends of a tension spring are respectively hung on the moving limiting member and the fixed limiting member.

2. The electrical switch tension spring installation tool according to claim 1, characterized in that, The gear is a semi-tooth surface gear, the driving member is a force applying rod, the teeth of the semi-tooth surface gear are arranged at the lower end part of the gear, the force applying rod is arranged at the upper end part of the gear.

3. The electrical switch tension spring installation tool according to claim 1, characterized in that, On the upper end face of the moving seat there is a hand-held rod.

4. The electrical switch tension spring installation tool according to claim 1, characterized in that The moving limiting member and the fixed limiting member have the same structure, both include two limiting columns arranged side by side, a gap for limiting the tension spring is formed between the two limiting columns.

5. The electrical switch tension spring installation tool according to claim 1, wherein, The lower end face of the moving limiting member is higher than the lower end face of the fixed limiting member, forming a height difference.

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