Double-tone identification alarm

Abstract

The utility model discloses a double-tone identification alarm, which relates to an alarm and comprises a first light alarm, a second light alarm, a first sound alarm and a second sound alarm. A coil of the first relay is connected with the output end of the cart control system, and a first normally open contact of the first relay and a first light alarm are connected in series between the two output ends of the cart control system; a coil of the second relay is connected with the output end of the main and auxiliary hook control system; a first normally open contact of the second relay and a second light alarm are connected in series between the two output ends of the main and auxiliary hook control system; the output ends of the two control systems are connected with a rectifying device at the same time, and the output end of the rectifying device is connected with a first sound alarm and a second sound alarm through a circulation time relay. According to the utility model, on-site workers can quickly and clearly know the operation state of the hoisting machinery, and the problem that the working continuity of the hoisting machinery is influenced due to the fact that the operation state of the hoisting machinery is difficult to judge is avoided.

Description

Technical Field

[0001] The utility model relates to an alarm, and more specifically, to a dual-sound and color identification alarm. Background Art

[0002] At present, the alarms of single-beam cranes in use in the market usually include two forms: sound reminders and light prompts. With further development, the use of sound and light alarm devices combining sound and light has also been widely used. The moving parts of single-beam cranes mainly include trolleys and main and auxiliary hooks. When the trolley of the crane is running or the main and auxiliary hooks are lifting and lowering, the sound and light alarms need to be activated to remind the on-site staff to avoid entering the operation / operation range of the crane. However, the existing cranes share a sound and light alarm device when the trolley is running and the main and auxiliary hooks are lifting and lowering. That is, when the trolley is running or the main and auxiliary hooks are lifting and lowering or both are running at the same time, the trolley control system and / or the main and auxiliary hook control system will output a control signal to the relay to start the sound and light alarm to make it work. However, due to the different operating ranges of the trolley operation and the main and auxiliary hooks lifting and lowering operation, the use of the same sound and light alarm makes it difficult for on-site staff to judge the operating status of the crane. After hearing the alarm, the on-site staff often need to stop working and confirm that the operating status of the crane will not affect their work before continuing to work, thereby affecting the continuity of on-site operations. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a dual-sound and color identification alarm in view of the deficiencies in the prior art, so as to avoid the problem that the working continuity of the lifting machinery is affected due to the difficulty in judging the running state of the lifting machinery.

[0004] The utility model discloses a dual-sound and color identification alarm, comprising a first relay, a second relay, a cycle time relay, a first light alarm, a second light alarm, a first sound alarm and a second sound alarm;

[0005] The two ends of the coil of the first relay are respectively connected to the first output end and the second output end of the trolley control system, and the first normally open contact of the first relay and the first light alarm connected in series are also connected between the first output end and the second output end of the trolley control system;

[0006] The two ends of the coil of the second relay are respectively connected to the first output end and the second output end of the main and auxiliary hook control systems, and the first normally open contact and the second optical alarm of the second relay connected in series are also connected between the first output end and the second output end of the main and auxiliary hook control systems;

[0007] The output end of the trolley control system and the output end of the main and auxiliary hook control system are simultaneously connected to a rectifier device, and the output end of the rectifier device is connected to the coil of the circulation time relay. The output end of the rectifier device is also simultaneously connected to the normally open contact of the circulation time relay and the normally closed contact of the circulation time relay. The normally open contact of the circulation time relay is connected to the first sound alarm through the second normally open contact of the first relay, and the normally closed contact of the circulation time relay is connected to the second sound alarm through the second normally open contact of the second relay.

[0008] As a further improvement, the rectifier device includes a first rectifier and a second rectifier; the two input ends of the first rectifier are respectively connected to the first output end and the second output end of the trolley control system in a one-to-one correspondence, the two input ends of the second rectifier are respectively connected to the first output end and the second output end of the main and auxiliary hook control systems in a one-to-one correspondence, and the two output ends of the first rectifier are respectively connected to the two output ends of the second rectifier in a one-to-one correspondence.

[0009] As a further improvement, the light emitting color of the first light alarm is red, and the light emitting color of the second light alarm is green.

[0010] As a further improvement, the sound frequency of the first alarm is greater than the sound frequency of the second alarm.

[0011] Beneficial Effects

[0012] The advantages of the utility model are: through the setting of the first relay, the second relay, the cycle time relay, the first light alarm, the second light alarm, the first sound alarm and the second sound alarm, the light alarm and the sound alarm can give alarms according to the different operating conditions of the lifting machinery, so that on-site staff can quickly and clearly understand the operating status of the lifting machinery, and thus take countermeasures more quickly, avoiding the problem of affecting the continuity of its work due to difficulty in judging the operating status of the lifting machinery. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a schematic diagram of the control circuit structure of the dual sound and color recognition alarm.

[0014] Among them: LED1, the first light alarm; LED2, the second light alarm; BT1, the first sound alarm; BT2, the second sound alarm; K1-1, the coil of the first relay; K1-2, the first normally open contact of the first relay; K1-3, the second normally open contact of the first relay; K2-1, the coil of the second relay; K2-2, the first normally open contact of the second relay; K2-3, the second normally open contact of the second relay; K3-1, the coil of the cycle time relay; K3-2, the normally open contact of the cycle time relay; K3-3, the normally closed contact of the cycle time relay; D1, the first rectifier; D2, the second rectifier; L1, the first output end of the trolley control system; N1, the second output end of the trolley control system; L2, the first output end of the main and auxiliary hook control system; N2, the second output end of the main and auxiliary hook control system. DETAILED DESCRIPTION

[0015] The utility model is further described below in conjunction with the embodiments, but does not constitute any limitation to the utility model. Any limited modifications made by anyone within the scope of the claims of the utility model are still within the scope of the claims of the utility model.

[0016] See also Figure 1 The utility model discloses a dual sound and color identification alarm, comprising a first relay, a second relay, a cycle time relay, a first light alarm LED1, a second light alarm LED2, a first sound alarm BT1 and a second sound alarm BT2. Among them, the luminous color of the first light alarm LED1 is different from the luminous color of the second light alarm LED2. Specifically, the luminous color of the first light alarm LED1 can be red, and the luminous color of the second light alarm LED2 can be green. Similarly, the sound frequency of the first sound alarm BT1 is different from the sound frequency of the second sound alarm BT2. Specifically, the sound frequency of the first sound alarm BT1 can be set to be greater than or less than the sound frequency of the second sound alarm BT2. In this way, the two light alarms and sound alarms can have obvious differences when working, which can greatly improve the recognition ability of the staff, thereby improving safety.

[0017] The two ends of the coil K1-1 of the first relay are respectively connected to the first output end and the second output end of the trolley control system, and the first normally open contact K1-2 of the first relay and the first light alarm LED1 connected in series are also connected between the first output end and the second output end of the trolley control system. That is, when the trolley is running, the trolley control system will output a control signal to the coil K1-1 of the first relay, so that its first normally open contact is closed, and the first light alarm LED1 is powered on to start a light alarm of the trolley operation.

[0018] The two ends of the coil K2-1 of the second relay are respectively connected to the first output end and the second output end of the main and auxiliary hook control system, and the first output end and the second output end of the main and auxiliary hook control system are also connected in series with the first normally open contact K2-2 and the second light alarm LED2 of the second relay. That is, when the main and auxiliary hooks are in operation, the main and auxiliary hook control system will output a control signal to the coil K2-1 of the second relay, so that its first normally open contact is closed, and the second light alarm LED2 is powered on to start the light alarm of the main and auxiliary hooks in operation.

[0019] The output end of the trolley control system and the output end of the main and auxiliary hook control system are simultaneously connected to a rectifier. Specifically, the rectifier includes a first rectifier D1 and a second rectifier D2. The two input ends of the first rectifier D1 are respectively connected to the first output end and the second output end of the trolley control system in a one-to-one correspondence, the two input ends of the second rectifier D2 are respectively connected to the first output end and the second output end of the main and auxiliary hook control system in a one-to-one correspondence, the two output ends of the first rectifier D1 are respectively connected to the two output ends of the second rectifier D2 in a one-to-one correspondence, and the connection end of the output ends of the first rectifier D1 and the second rectifier D2 is used as the output end of the rectifier. The output end of the rectifier device is connected to the coil K3-1 of the circulation time relay, and the output end of the rectifier device is also connected to the normally open contact K3-2 and the normally closed contact K3-3 of the circulation time relay. The normally open contact K3-2 of the circulation time relay is connected to the first sound alarm BT1 through the second normally open contact K1-3 of the first relay, and the normally closed contact K3-3 of the circulation time relay is connected to the second sound alarm BT2 through the second normally open contact K2-3 of the second relay.

[0020] Since the trolley control system and the main and auxiliary hook control systems are connected to the cycle time relay through corresponding rectifiers respectively, when any control system has output or both control systems have output, the cycle time relay is energized and operates, so that the opening and closing states of its normally closed contacts and normally open contacts are switched cyclically.

[0021] If only the trolley control system has output at present, the second normally open contact K1-3 of the first relay is closed, and the second normally open contact K2-3 of the second relay is disconnected, so that the first sound alarm BT1 starts to sound an alarm, and the second sound alarm BT2 does not work.

[0022] If only the main and auxiliary hook control systems have outputs at present, the second normally open contact K2-3 of the second relay is closed, and the second normally open contact K1-3 of the first relay is disconnected, so that the second sound alarm BT2 starts to sound an alarm, and the first sound alarm BT1 does not work.

[0023] However, in the above two working conditions of the lifting machinery, the first sound alarm BT1 or the second sound alarm BT2 is also affected by the operation of the cycle time relay to make it alarm at intervals. However, this does not affect the normal operation of the sound alarm and the recognition of the sound by the on-site staff.

[0024] If the trolley control system and the main and auxiliary hook control system have outputs at the same time, the second normally open contact K1-3 of the first relay and the second normally open contact K2-3 of the second relay are both closed. At this time, the working time of the first alarm BT1 and the second alarm BT2 will be divided into time alarms according to the switching of the contacts of the cycle time relay.

[0025] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. A dual tone and color recognition alarm, characterized in that: It includes a first relay, a second relay, a cycle time relay, a first light alarm (LED1), a second light alarm (LED2), a first sound alarm (BT1) and a second sound alarm (BT2); Two ends of the coil (K1-1) of the first relay are respectively connected to the first output end and the second output end of the trolley control system, and a first normally open contact (K1-2) of the first relay and a first light alarm (LED1) connected in series are also connected between the first output end and the second output end of the trolley control system; The two ends of the coil (K2-1) of the second relay are respectively connected to the first output end and the second output end of the main and auxiliary hook control systems, and the first normally open contact (K2-2) of the second relay and the second light alarm (LED2) connected in series are also connected between the first output end and the second output end of the main and auxiliary hook control systems; The output end of the trolley control system and the output end of the main and auxiliary hook control system are simultaneously connected to a rectifier device, and the output end of the rectifier device is connected to the coil (K3-1) of the circulation time relay. The output end of the rectifier device is also simultaneously connected to the normally open contact (K3-2) of the circulation time relay and the normally closed contact (K3-3) of the circulation time relay. The normally open contact (K3-2) of the circulation time relay is connected to the first sound alarm (BT1) through the second normally open contact (K1-3) of the first relay, and the normally closed contact (K3-3) of the circulation time relay is connected to the second sound alarm (BT2) through the second normally open contact (K2-3) of the second relay.

2. A dual tone and color recognition alarm according to claim 1, characterized in that: The rectifier device comprises a first rectifier (D1) and a second rectifier (D2); two input ends of the first rectifier (D1) are respectively connected to a first output end and a second output end of a trolley control system in a one-to-one correspondence, two input ends of the second rectifier (D2) are respectively connected to a first output end and a second output end of a main and auxiliary hook control system in a one-to-one correspondence, and two output ends of the first rectifier (D1) are respectively connected to two output ends of the second rectifier (D2) in a one-to-one correspondence.

3. A dual tone and color recognition alarm according to claim 1, characterized in that: The light emitting color of the first light alarm (LED1) is red, and the light emitting color of the second light alarm (LED2) is green.

4. A dual tone and color recognition alarm according to claim 1, characterized in that: The sound frequency of the first alarm (BT1) is greater than the sound frequency of the second alarm (BT2).

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