CN202671029U - Wireless lifting hook anti-collision instrument for upper and lower layer cranes - Google Patents

Abstract

The utility model relates to a wireless hook anti-collision instrument for upper and lower cranes, which comprises a height limiter, an upper contactor, an upper shielding switch, an upper buzzer, an upper indicator light, a lower contactor, a lower shielding switch, and a lower buzzer device and the lower indicator light; wherein, the height limiter, the upper contactor, the upper shielding switch and the upper buzzer are connected in series in sequence; the lower contactor, the lower shielding switch and the lower buzzer are connected in series in sequence; the The upper-layer contactor and the lower-layer contactor are connected in parallel; the upper-layer indicator light is connected in parallel to the upper-layer shielding switch; the lower-layer indicator light is connected in parallel to the lower-layer shielding switch. The wireless hook anti-collision device of the upper and lower cranes of the utility model, when the hook of the upper crane drops to the working height of the lower crane, the crane sends a wireless signal alarm to remind the driver to avoid the occurrence of safety accidents.

Description

A wireless hook anti-collision instrument for upper and lower cranes

technical field

The utility model relates to a composition system of a crane, in particular to a wireless hook anti-collision device for upper and lower cranes, which belongs to the technical field of lifting equipment.

Background technique

Large-scale production workshops are generally equipped with upper and lower cranes. When the hook of the upper crane is lowered, the driver of the lower crane may have a safety accident in which the hook of the upper crane collides with the lower crane because of the sight in the driver's room.

Therefore, in order to solve the above technical problems, it is indeed necessary to provide a wireless hook anti-collision device with an improved structure for the upper and lower cranes, so as to overcome the defects in the prior art.

Utility model content

In order to solve the above problems, the purpose of this utility model is to provide a wireless hook anti-collision device for upper and lower cranes that can send out an alarm signal and remind the driver.

In order to achieve the above purpose, the technical solution adopted by the utility model is: a wireless hook anti-collision device for upper and lower cranes, which includes a height limiter, an upper contactor, an upper shield switch, an upper buzzer, an upper indicator light, a lower The contactor, the lower layer shielding switch, the lower layer buzzer and the lower layer indicator light; wherein, the height limiter, the upper layer contactor, the upper layer shielding switch and the upper layer buzzer are connected in series; the lower layer contactor, the lower layer shielding switch and The buzzers on the lower layer are connected in series in sequence; the upper layer contactor and the lower layer contactor are connected in parallel; the upper layer indicator light is connected in parallel to the upper layer shielding switch; the lower layer indicator light is connected in parallel to the lower layer shielding switch.

The wireless hook anti-collision device of the upper and lower cranes of the utility model is further set as: the upper contactor and the lower contactor are normally open contactors.

Compared with the prior art, the utility model has the following beneficial effects: when the wireless hook anti-collision device of the upper and lower cranes of the utility model drops to the working height of the lower crane, the crane sends a wireless signal alarm to remind the driver , to avoid safety accidents.

Description of drawings

Fig. 1 is the schematic diagram of the wireless hook anti-collision instrument of the upper and lower cranes of the utility model.

Detailed ways

Please refer to the accompanying drawing 1 of the specification, the utility model is a wireless hook anti-collision instrument for upper and lower cranes, which consists of a height limiter 10, an upper contactor 11, an upper shield switch 12, an upper buzzer 13, and an upper indicator Electronic components such as the lamp 14, the lower layer contactor 21, the lower layer shielding switch 22, the lower layer buzzer 23, and the lower layer indicator light 24 are electrically connected to form.

Wherein, the height limiter 10, the upper contactor 11, the upper shield switch 12 and the upper buzzer 13 are sequentially connected in series, which are installed on the upper crane. The upper layer indicator light 14 is connected to the upper layer shielding switch 12 in parallel.

The lower layer contactor 21, the lower layer shielding switch 22 and the lower layer buzzer 23 are sequentially connected in series, which are installed on the lower layer crane. The lower indicator light 24 is connected to the lower shield switch 21 in parallel.

Further, the upper layer contactor 11 and the lower layer contactor 21 are connected in parallel, and both are normally open contactors.

The working principle of the wireless hook anti-collision device for the upper and lower cranes of the present utility model is as follows: when the height limiter 10 of the upper crane falls beyond the working height of the lower crane, the normally open contact of the upper contactor 11 of the upper crane is closed, and the upper Buzzer 13 sends acousto-optic alarm, and according to user's on-site needs, the driver can cut off the sound of upper strata buzzer 13 by upper layer shielding switch 12, but upper strata indicator light 14 flickering alarm can not be cut off to remind the driver.

When the hook of the upper floor crane dropped to the working height of the lower floor crane, the normally open contact of the lower floor contactor 21 of the lower floor crane was closed, and the lower floor buzzer 23 sent an audible and visual alarm. The lower crane has two states. State 1: Only when the hook of the upper crane is lowered to the working height area of the lower crane, the cart of the lower crane can move; State 2: When the hook of the upper crane drops to the working height of the lower crane , when confirming that the upper floor crane position is away from oneself, the driver can cut off the lower floor buzzer 23 sound and shield the cart limit switch by the lower floor shielding switch 22, but the lower floor indicator light 24 flashing alarm can not be cut off, reminding the driver.

The specific implementation above is only a preferred embodiment of this creation, and is not intended to limit this creation. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this creation should be included in this creation. within the scope of protection.

Claims (2)

1. A wireless hook anti-collision instrument for upper and lower cranes, characterized in that: it includes a height limiter, an upper contactor, an upper shielding switch, an upper buzzer, an upper indicator light, a lower contactor, a lower shielding switch, and a lower buzzer. The buzzer and the lower indicator light; wherein, the height limiter, the upper contactor, the upper shielding switch and the upper buzzer are connected in series in sequence; the lower contactor, the lower shielding switch and the lower buzzer are connected in series in sequence; The upper layer contactor and the lower layer contactor are connected in parallel; the upper layer indicator light is connected in parallel to the upper layer shielding switch; the lower layer indicator light is connected in parallel to the lower layer shielding switch. 2. The wireless hook anti-collision device for upper and lower cranes according to claim 1, characterized in that: the upper contactor and the lower contactor are normally open contactors.

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