CN219194316U

CN219194316U - Overload alarm device for electric hoist

Info

Publication number: CN219194316U
Application number: CN202222540496.4U
Authority: CN
Inventors: 华鹏; 朱纬国
Original assignee: Jiali Machinery Co ltd
Current assignee: Jiali Machinery Co ltd
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2023-06-16
Anticipated expiration: 2032-09-26

Abstract

The utility model relates to the technical field of hoisting equipment and discloses an overload alarm device for an electric hoist, wherein the surface of a main body of the equipment is provided with an alarm, the lower surface of the alarm is provided with a first groove, the upper surface of the alarm is hinged with a shell, the interior of the shell is provided with a second groove, the interior of the shell is movably sleeved with a positioning plate, the surface of the positioning plate is movably connected with a spring body, the surface of the positioning plate is fixedly connected with a stop block, the rear surface of the alarm is provided with a positioning unit, the surface of the alarm is provided with a protective cover, the alarm is prevented from being broken by falling unexpected articles, meanwhile, the lower surface of a shell is internally provided with a limiting structure, the protective cover can be prevented from being opened and closed uncontrollably in the moving process, and the back of the alarm is provided with structures such as a mounting rack and a supporting rack, so that the safety cover is convenient to assemble and disassemble when in the installation or disassembly maintenance.

Description

Overload alarm device for electric hoist

Technical Field

The utility model relates to the technical field of hoisting equipment, in particular to an overload alarm device for an electric hoist.

Background

The electric hoist is a special lifting equipment, has the characteristics of small volume, light dead weight, simple operation, convenient use and the like, and is used for places such as industrial and mining enterprises, storage, wharfs and the like. The electric hoist is generally arranged on a single-beam crane, a bridge crane, a portal crane and a suspension crane, is slightly modified, and can be used as a winch. Therefore, the electric hoist is a necessary machine for improving labor efficiency and labor conditions, and the common electric hoist is afraid of overload and brings potential safety hazard and is provided with an overload alarm device.

However, the alarm device is generally complicated in structure and inconvenient to mount and dismount and maintain in the later period, and the alarm device is exposed outside and is easy to damage. Therefore, a person skilled in the art provides an overload alarm device for an electric hoist to solve the problems set forth in the background art.

Disclosure of Invention

The utility model aims to provide an overload alarm device for an electric hoist, which aims to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides an overload alarm device for electric block, includes equipment main part and alarm, the surface of equipment main part is provided with the alarm, first recess has been seted up to the lower surface of alarm, the upper surface of alarm articulates there is the casing, the second recess has been seted up to the inside of casing, the locating plate has been cup jointed to the inside activity of casing, the surface swing joint of locating plate has the spring body, the surface rigid coupling of locating plate has the dog, the rear surface of alarm is provided with positioning unit.

As still further aspects of the utility model: the stop block is positioned in the second groove.

As still further aspects of the utility model: the positioning unit comprises a mounting frame, fastening screws, telescopic springs and a supporting frame, wherein the fastening screws penetrate through the right side support of the mounting frame at equal intervals, the other ends of the fastening screws are connected with the supporting frame in a rotating mode, and the telescopic springs are arranged between the supporting frame and the right side support of the mounting frame.

As still further aspects of the utility model: the number of the fastening screws is 2, and the two fastening screws are symmetrically distributed at the center point of the right edge of the mounting frame.

As still further aspects of the utility model: the size of the first groove is matched with the top end of the positioning plate.

As still further aspects of the utility model: the shell is made of PVC plastic.

Compared with the prior art, the utility model has the beneficial effects that:

1. the protective cover is arranged on the surface of the alarm device, so that the alarm device can be prevented from being broken by falling of unexpected articles, and meanwhile, the limiting structure is arranged in the lower surface of the shell, so that the protective cover can be prevented from being damaged due to uncontrolled opening and closing in the movement process;

2. the back of the alarm device is provided with the structures such as the mounting frame and the supporting frame, so that the electric hoist can be conveniently disassembled and assembled when being mounted or disassembled for maintenance, and meanwhile, the electric hoist can be suitable for electric hoists with different sizes, and the electric hoist has wider application range and simple and practical structure.

Drawings

FIG. 1 is a schematic diagram of an overload warning apparatus for an electric hoist;

FIG. 2 is a schematic diagram of an installation structure of an overload alarm device in the overload alarm device for an electric hoist;

FIG. 3 is an enlarged view of area A of FIG. 2;

FIG. 4 is a schematic diagram of a positioning unit in an overload warning apparatus for an electric hoist;

in the figure: 1. an apparatus main body; 2. an alarm; 3. a housing; 4. a mounting frame; 5. fastening a screw; 6. a telescopic spring; 7. a support frame; 8. a first groove; 9. a stop block; 10. a spring body; 11. a second groove; 12. a positioning plate; 13. and a positioning unit.

Detailed Description

Referring to fig. 1-4, in an embodiment of the utility model, an overload alarm device for an electric hoist includes an apparatus main body 1 and an alarm 2, wherein the surface of the apparatus main body 1 is provided with the alarm 2, the lower surface of the alarm 2 is provided with a first groove 8, the upper surface of the alarm 2 is hinged with a housing 3, the housing 3 is made of PVC plastic, the interior of the housing 3 is provided with a second groove 11, the interior of the housing 3 is movably sleeved with a positioning plate 12, the size of the first groove 8 is matched with the top size of the positioning plate 12, the surface of the positioning plate 12 is movably connected with a spring body 10, the surface of the positioning plate 12 is fixedly connected with a stop 9, the stop 9 is located in the second groove 11, when the housing 3 needs to be opened, the positioning plate 12 can be pulled downwards by hand, the stop 9 can be driven to move downwards by the telescopic spring 6, and when the positioning plate 12 is completely separated from the first groove 8, the housing 3 can be opened easily.

In fig. 4: the rear surface of alarm 2 is provided with positioning unit 13, positioning unit 13 includes mounting bracket 4, fastening screw 5, telescopic spring 6 and support frame 7, the inside equidistance of right side support of mounting bracket 4 is run through and is had fastening screw 5, the quantity of fastening screw 5 is two, two fastening screws 5 are symmetrical distribution with the central point of mounting bracket 4 right side limit, the other end rotation of fastening screw 5 is connected with support frame 7, be provided with telescopic spring 6 between the right side support of support frame 7 and mounting bracket 4, when the installation, can be earlier according to the distance between the rotatory fastening screw 5 regulation support frame 7 of required size and the alarm 2, then screw up fastening screw 5 again can.

The working principle of the utility model is as follows: firstly, when the alarm 2 is installed, the fastening screw 5 can be rotated according to the unused size to adjust the distance between the support frame 7 and the left side of the installation frame 4, then the alarm 2 can be fixed by screwing the fastening screw 5, meanwhile, the support frame 7 and the alarm 2 can be clamped under the tension action of the telescopic spring 6, and the alarm 2 can be more firmly installed on the equipment main body 1 by double fixation; then when the shell 3 needs to be opened, downward force can be applied to the positioning plate 12, the positioning plate 12 can drive the stop block 9 to move downwards through the spring body 10, when the positioning plate 12 completely leaves the first groove 8, the shell 3 can be easily opened, otherwise, when downward force is not applied to the positioning plate 12, the tension of the spring body 10 can drive the stop block 9 and the positioning plate 12 to restore to the original position, and the unexpected opening and closing of the shell 3 in the movement process of the equipment main body 1 are avoided.

The foregoing description is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical solution of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides an overload alarm device for electric block, includes equipment main part (1) and alarm (2), a serial communication port, the surface of equipment main part (1) is provided with alarm (2), first recess (8) have been seted up to the lower surface of alarm (2), the upper surface of alarm (2) articulates there is casing (3), second recess (11) have been seted up to the inside of casing (3), locating plate (12) have been cup jointed to the inside activity of casing (3), the surface swing joint of locating plate (12) has spring body (10), the surface rigid coupling of locating plate (12) has dog (9), the rear surface of alarm (2) is provided with positioning unit (13).

2. Overload warning apparatus for electric hoist according to claim 1, characterized in that the stop (9) is located inside the second recess (11).

3. The overload alarm device for the electric hoist according to claim 1, wherein the positioning unit (13) comprises a mounting frame (4), fastening screws (5), telescopic springs (6) and a supporting frame (7), the fastening screws (5) penetrate through the right side bracket of the mounting frame (4) at equal intervals, the supporting frame (7) is rotatably connected to the other end of the fastening screws (5), and the telescopic springs (6) are arranged between the supporting frame (7) and the right side bracket of the mounting frame (4).

4. An overload warning apparatus for an electric hoist according to claim 3, wherein the number of the fastening screws (5) is two, and the two fastening screws (5) are symmetrically distributed at the center point of the right edge of the mounting frame (4).

5. The overload alarm apparatus for the electric hoist according to claim 1, wherein the size of the first groove (8) is matched with the top end of the positioning plate (12).

6. The overload alarm device for the electric hoist according to claim 1, wherein the shell (3) is made of PVC plastic.