Chain conductor of electric hoist

Abstract

The utility model discloses a chain conductor of an electric hoist, which comprises a conductor main body, the conductor main body is vertically provided with a penetrating groove for a chain to go in and out, the side wall of the conductor main body is provided with an installation groove for installing a microswitch, the bottom wall of the installation groove is provided with a through hole for installing an elastic pin, and the through hole is communicated with the conductor main body. The position of the through hole corresponds to the position of a contact of the microswitch, in actual use, the microswitch for controlling the motor to stop is arranged in the installation groove of the conductor body, when the chain lifts an object to the limit, the end of the chain makes contact with the elastic pin installed on the through hole, the microswitch is triggered through the elastic pin, a traditional transmission structure is omitted, and the transmission efficiency is improved. The structure is effectively simplified, the number of parts is small, the cost is reduced, the microswitch is integrated in the conductor body, better integrity is achieved, and finally the overall attractiveness of the electric hoist and the chain conductor is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric hoist field especially is chain conductor of electric hoist. BACKGROUND

[0002] Electric hoist is a kind of special hoisting equipment, is installed on headstock gear, gantry crane, electric hoist has small volume, light weight, simple operation, convenient to use etc., is used in industrial and mining enterprises, warehouse, wharf etc.

[0003] Through the retrieval, the Chinese patent with disclosure number CN113003459A discloses a limiting protection type electric hoist, including motor, winding rope cylinder, toggle lever, stop lever and positioning lamp;Wherein the toggle lever is "Z" letter going to structure and is limited to set on the motor, and the lower end portion is connected with the switch button of second micro switch transmission;Stop lever is "U" shaped pole structure, and is connected with the switch button on the first micro switch transmission connection.This application when the height of the object to be lifted is too high to approach the stop lever, drives the stop lever to deflect, and then triggers the first micro switch to close the power supply of motor, to prevent the goods from being lifted too high to cause safety accident;In addition, if the motor still drives the winding rope cylinder to rotate after the steel wire rope on the winding rope cylinder is finished, it is inevitable that the steel wire rope is wound from the other side of the winding rope cylinder, to utilize the principle of lever to make the other end of lever trigger the button of second micro switch, to prevent the winding rope cylinder from continuing to rotate;This application utilizes the positioning lamp on the stop lever to position the position of goods and sling, to prevent the lifting center of gravity from being unstable.

[0004] The above-mentioned scheme triggers the button of micro switch by the way of lever transmission to prevent the problem of lifting goods too high during hoisting, but the overall transmission structure is complex, and there are many parts, and the transmission parts are located outside, which affects the appearance of electric hoist. UTILITY MODEL CONTENTS

[0005] In order to further simplify the structure and improve the appearance, the application provides a chain conductor of electric hoist.

[0006] The application provides a chain conductor of electric hoist, adopts the following technical scheme:

[0007] A chain conductor of electric hoist, comprising a conductor main body, a through slot is vertically provided on the conductor main body and is used for the chain to pass in and out, an installation slot is provided on the side wall of the conductor main body and is used for the installation of micro switch, a through hole is provided on the bottom wall of the installation slot and is used for the installation of elastic pin, and the position of the through hole corresponds to the position of the contact of micro switch.

[0008] Optionally, the installation slots are symmetrically arranged on the two sides of the conductor main body.

[0009] Optionally, the conductor body has an outwardly protruding boss at the slot opening corresponding to the through slot, and the slot opening of the through slot and the through hole are located on the boss.

[0010] Optionally, a through lead hole is formed in the top wall of the mounting slot, and a lead slot is formed in the top of the conductor body and communicates with the two lead holes.

[0011] Optionally, the lead slot includes a main slot and a branch slot, one end of the branch slot communicates with the lead hole, and the other end communicates with the main slot.

[0012] Optionally, the mounting slot has a mounting table, and the mounting table is provided with a first mounting hole for mounting the micro switch.

[0013] Optionally, the mounting table is provided with a second mounting hole for mounting a pressing plate, and the pressing plate is used to press the micro switch.

[0014] Optionally, the side wall of the conductor body has a groove corresponding to the outer edge of the mounting slot for mounting the cover plate.

[0015] Optionally, the depth of the groove is consistent with the thickness of the cover plate.

[0016] Optionally, the cover plate is detachably connected with the conductor body.

[0017] In summary, the present application has at least one of the following beneficial technical effects:

[0018] 1. In actual use, the micro switch for stopping the motor is arranged in the mounting slot of the conductor body. When the chain lifts the object to the limit, the end of the chain contacts the elastic pin mounted on the through hole, and the micro switch is triggered by the elastic pin. The traditional transmission structure is saved, the structure is effectively simplified, the parts are reduced, the cost is reduced, the micro switch is integrated in the conductor body, and the overall appearance of the electric hoist and the chain conductor is improved.

[0019] 2. The mounting slot is designed with a lead hole. The wire for electrically connecting the micro switch with the motor can pass through the lead hole to the lead slot, and finally be electrically connected with the motor under the guidance of the lead slot. The wire is hidden inside the conductor body, thereby avoiding the problem of exposure of the wire outside, affecting the appearance and being unsafe.

[0020] 3. The design of the boss can increase the thickness of the conductor body at the through slot, improve the structural strength of the conductor body at the through slot, and reduce the phenomenon of deformation or damage of the conductor body at the through slot when the end of the chain is transported to the limit.

[0021] 4. The detachable cover plate can close the slot opening of the mounting slot and shield the internal micro switch. When maintenance and replacement are needed, the cover plate can be removed and operated at the slot opening of the mounting slot, which is simple and convenient.BRIEF DESCRIPTION OF DRAWINGS BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a structural diagram of a lateral perspective view of an embodiment of the present application.

[0023] Figure 2 is a structural diagram of a top perspective view of an embodiment of the present application.

[0024] BRIEF DESCRIPTION OF DRAWINGS:

[0025] 1, conductor body; 2, through slot; 3, mounting slot; 4, mounting table; 5, first mounting hole; 6, through hole; 7, boss; 8, lead hole; 9, lead slot; 10, main slot; 11, sub slot; 12, second mounting hole; 13, slot body. DETAILED DESCRIPTION

[0026] The following will be described in detail below in combination with the accompanying Figures 1-2 The present application will be further described in detail.

[0027] A chain conductor of an electric hoist, as shown in Figure 1 and Figure 2 , comprises a conductor body 1, vertical through slots 2 are formed at both ends of the conductor body 1, the through slots 2 are used for the hoisting chain to enter and exit, the shape of the through slots 2 is cross-shaped and matches the chain, recessed mounting slots 3 are formed on the symmetrical two side walls of the conductor body 1, the mounting slots 3 have mounting tables 4 therein, first mounting holes 5 are formed on the mounting tables 4, the first mounting holes 5 are used for the installation and fixation of micro switches, the micro switches are used for electrical connection with the motor of the electric hoist in actual use, the micro switches have contacts, the micro switch is touched to make the motor stop, through holes 6 are formed on the bottom wall of the mounting slots 3, the through holes 6 are used for the installation of elastic pins, one end of the elastic pin penetrates out of the bottom of the conductor body 1 and is used for abutting against the tail end of the chain, the other end of the elastic pin abuts against the contact of the micro switch, so that in actual use, when the chain hoists an object to the limit height, the tail end of the chain abuts against the elastic pin, the micro switch is touched by the elastic pin to make the motor stop, avoiding the problem that the motor continues to work when hoisted to the limit height, improving the safety of use.

[0028] In this way, the micro switch can be integrated in the mounting slot 3 of the conductor body 1, the traditional transmission structure is saved, the structure is effectively simplified, the parts are few and the cost is reduced, and the micro switch integrated in the conductor body 1 has better integrity, finally improving the overall appearance of the electric hoist and the chain conductor.

[0029] As shown in Figure 1 and Figure 2As shown in the drawings, the conductor body 1 has an outwardly convex boss 7 at the slot opening corresponding to the through slot 2, the through slot 2 and the through hole 6 are located on the boss 7, and the boss 7 is designed to thicken the structure of the conductor body 1 at the position corresponding to the through slot 2, thereby improving the structural strength of the position. In actual use, when the chain end is transported to the limit and contacts the boss 7, the phenomenon that the conductor body 1 at the position is prone to deformation or damage is reduced.

[0030] As shown in the drawings, Figure 1 and Figure 2 a vertical lead hole 8 is provided on the top wall side of the mounting slot 3, the lead hole 8 penetrates the bottom wall of the conductor body 1, and a lead slot 9 is provided on the top wall of the conductor body 1 to communicate with both sides, the lead slot 9 includes a main slot 10 and a branch slot 11, one end of the branch slot 11 communicates with the lead hole 8, and the other end of the branch slot 11 communicates with the main slot 10. In actual use, the lead wire of the micro switch can be pulled out from the lead hole 8 and finally connected to the motor after being guided and collected in the lead slot 9. The lead wire is hidden inside the conductor body 1, thereby avoiding the problem that the lead wire is exposed outside, affecting the appearance and being unsafe.

[0031] As shown in the drawings, Figure 1 and Figure 2 The mounting table 4 is also provided with a second mounting hole 12 for fixing the pressure plate, and in actual use, the pressure plate is fixed on the mounting table 4 by screws, and the micro switch is further pressed and fixed by the pressure plate, thereby improving the installation stability of the micro switch.

[0032] As shown in the drawings, Figure 1 and Figure 2 The side wall of the conductor body 1 has a groove 13 for mounting the cover plate corresponding to the outer edge of the slot opening of the mounting slot 3, and in actual use, the cover plate and the conductor body 1 can be detachably connected by screws and the like. The thickness of the cover plate is consistent with the depth of the groove 13, and the cover plate can be used to close the slot opening of the mounting slot 3, thereby playing a good protection and shielding effect. When the micro switch in the mounting slot 3 needs to be repaired or replaced, the cover plate can be removed for operation, which is simple and convenient.

[0033] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the basis of the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A chain conductor for an electric hoist, characterized in that: The device includes a conductor body (1), on which a through slot (2) is vertically opened for a chain to pass through and pass through. A mounting slot (3) for installing a micro switch is opened on the side wall of the conductor body (1), and a through hole (6) for installing a spring pin is opened on the bottom wall of the mounting slot (3). The position of the through hole (6) corresponds to the contact position of the micro switch.

2. The chain conductor of an electric hoist according to claim 1, characterized in that: The mounting grooves (3) are symmetrically arranged on both sides of the conductor body (1).

3. The chain conductor of an electric hoist according to claim 1, characterized in that: The conductor body (1) has a protruding boss (7) at the slot opening corresponding to the through groove (2), and the slot opening and through hole (6) of the through groove (2) are both located on the boss (7).

4. The chain conductor of an electric hoist according to claim 2, characterized in that: The mounting groove (3) has a through lead hole (8) on its top wall, and the conductor body (1) has a lead groove (9) on its top that connects the lead holes (8) on both sides.

5. The chain conductor of an electric hoist according to claim 4, characterized in that: The lead groove (9) includes a main groove (10) and a sub-groove (11). One end of the sub-groove (11) is connected to the lead hole (8), and the other end is connected to the main groove (10).

6. The chain conductor of an electric hoist according to claim 1, characterized in that: The mounting slot (3) has a mounting platform (4), and the mounting platform (4) is provided with a first mounting hole (5) for mounting a micro switch.

7. The chain conductor of an electric hoist according to claim 6, characterized in that: The mounting platform (4) is provided with a second mounting hole (12) for mounting a pressure plate, which is used to press the micro switch.

8. The chain conductor of an electric hoist according to claim 1, characterized in that: The conductor body (1) has a groove (13) on the side wall corresponding to the outer edge of the mounting groove (3) for mounting the cover plate.

9. The chain conductor of an electric hoist according to claim 8, characterized in that: The depth of the groove (13) is the same as the thickness of the cover plate.

10. The chain conductor of an electric hoist according to claim 8, characterized in that: The cover plate is detachably connected to the conductor body (1).

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