Automatic release device for electric weather cock of tower crane

Abstract

The utility model belongs to the technical field of tower crane electric weather vane automatic releasing devices, and particularly relates to a tower crane electric weather vane automatic releasing device which comprises an electric weather vane and an anemograph, a cover plate is detachably connected to the outer wall of the electric weather vane, an installation assembly is arranged at the end, away from the electric weather vane, of the cover plate, and the electric weather vane comprises a handle. The handle penetrates through the electric weather vane, and the outer wall of the handle is sleeved with a dust cover. The automatic release device for the tower crane electric weather vane can monitor the wind speed in real time by using the anemograph, and can automatically trigger a release mechanism without manual intervention when the wind speed exceeds a preset safety threshold value, so that omission or wrong operation possibly occurring when a project is busy or works at night is avoided, and the automatic release device can effectively release the tower crane electric weather vane especially under severe weather conditions. The device can respond quickly, ensures timely release of the electric wind vane, effectively prevents delay caused by human factors, guarantees continuous operation of a construction site, and remarkably improves the project progress and economic benefits.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic release devices for electric wind vanes of tower cranes, in particular to an automatic release device for electric wind vanes of tower cranes. Background Art

[0002] The tower crane electric wind vane is the abbreviation of the tower crane electric wind vane brake, which controls the rotation of the crane arm. In normal operation, the electric wind vane is in a non-released state. In this state, when the crane arm stops rotating, the brake automatically locks the crane arm to facilitate loading and unloading of materials. When there is a typhoon or the wind force is greater than level 6, most tower cranes need to manually release the electric wind vane. After the electric wind vane is released, the crane arm can rotate freely to the downwind direction with the wind, so that the windward area of ​​the crane arm is minimized to avoid the collapse of the tower crane. There are two ways to manually release the electric wind vane: one is to press the electric wind vane release button on the control panel in the cab; the other is to manually lift the electric wind vane release handle and press the electric wind vane push handle at the same time, and then put down the electric wind vane release handle. After the electric wind vane push handle is pressed, the electric wind vane is automatically locked inside. When the tower crane is started again, the self-locking state is automatically released. In actual work, it often happens that workers forget to release the electric wind vane before going down the tower. When a typhoon comes, personnel must be arranged to go up the tower in time to release the electric wind vane. There are great safety hazards for personnel going up and down the tower crane in a typhoon.

[0003] At present, the existing system relies on human judgment and manual operation to release the electric wind vane, which not only increases the complexity of operation, but also reduces work efficiency. Especially when the project is busy or working at night, omissions or wrong operations are prone to occur. When the electric wind vane needs to be released urgently in bad weather, if it cannot be completed in time, it may cause the entire construction site to stop working and wait, seriously affecting the progress of the project and economic benefits. In view of this, an automatic release device for the electric wind vane of a tower crane is proposed. Utility Model Content

[0004] The main purpose of the utility model is to provide an automatic release device for an electric wind vane of a tower crane, which can solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above-mentioned purpose, the utility model proposes an automatic release device for an electric wind vane of a tower crane, comprising an electric wind vane and an anemometer, wherein a cover plate is detachably connected to the outer wall of the electric wind vane, and an installation component is arranged at one end of the cover plate away from the electric wind vane, and the electric wind vane comprises:

[0006] A handle, the handle passes through the electric wind vane, a dust cover is sleeved on the outer wall of the handle, and the dust cover is fixedly connected to the outer wall of the electric wind vane;

[0007] A push handle passes through the electric wind vane, a reset spring is sleeved on the outer wall of the push handle, one end of the reset spring is fixedly connected to the outer wall of the electric wind vane, and the other end of the reset spring is fixedly connected to the outer wall of the push handle.

[0008] Preferably, the installation component includes a support plate, a latch is fixedly connected to the outer wall of the support plate, and the support plate is clamped to the outer wall of the cover plate through the latch. The support plate is detachably connected to a locking rod through a fixing member.

[0009] Preferably, an electromagnet is fixedly connected to the support plate through a fixing screw arranged at the top. An armature is arranged inside the electromagnet, and the armature penetrates through the support plate. A power cord is fixedly connected to the outer wall of the electromagnet. The armature is clamped and connected to a connecting block through a connecting pin arranged at its bottom. A pull rod is threadedly connected to the inner wall of the connecting block. One end of the pull rod away from the connecting block is clamped with a bolt, and the connecting block is clamped to a hoop through a bolt arranged at its bottom. The hoop is sleeved with a handle through a bolt arranged at its bottom.

[0010] Preferably, a linkage rod abuts against the outer wall of the pull rod. The linkage rod is rotatably connected to the support plate through a linkage rod shaft arranged on its outer wall. One end of the linkage rod away from the pull rod abuts against the outer wall of the push handle. When the pull rod rises, it drives the linkage rod to push the push handle to move inwards.

[0011] Preferably, the anemometer is fixedly connected to the top of the tower crane. The power cord is connected to the DC power supply of the tower crane, and the signal line is electrically connected to the relay. The relay is respectively connected to the DC power supply and the electromagnet to control the opening and closing of the electromagnet power supply. The anemometer continuously monitors the wind speed and transmits the data to the relay through the signal line. When the wind speed reaches above level six, the anemometer sends a signal to the relay. After the relay receives the signal from the anemometer, the relay closes to allow current to pass through. After the relay closes, the DC power supply of the tower crane supplies power to the electromagnet through the relay.

[0012] Preferably, two sets of latches and locking rods are provided. The two sets of latches and locking rods are symmetrically arranged on both sides of the support plate with the midline on the front side of the support plate as the axis of symmetry. The two sets of latches and locking rods are both clamped to the outer wall of the cover plate.

[0013] The utility model provides an automatic release device for the wind vane of a tower crane. It has the following beneficial effects:

[0014] (1) By using the anemometer, the automatic release device for the wind vane of the tower crane can monitor the wind speed in real time and automatically trigger the release mechanism when the wind speed exceeds the preset safety threshold without manual intervention. Thus, it avoids possible omissions or incorrect operations during busy projects or night operations. Especially under bad weather conditions, the device can respond quickly to ensure the timely release of the wind vane, effectively preventing delays caused by human factors, ensuring continuous operation at the construction site, and significantly improving the project progress and economic benefits.

[0015] (2) The automatic release device of the wind vane of the tower machine enables the device to be easily maintained or replaced when needed through the use of the latch and lock rod in the installation component. At the same time, the setting of the dust cover effectively prevents dust from eroding the handle and the internal structure of the wind vane, extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0017] Figure 1 is a schematic plan view of the present invention;

[0018] Figure 2 is a schematic partial cross-sectional view of the present invention;

[0019] Figure 3 is a schematic view of the installation component structure of the present invention;

[0020] Figure 4 is the present invention Figure 2 schematic view of structure A in

[0021] Figure 5 is a schematic view of the circuit flow structure of the present invention in the figure.

[0022] Explanation of the reference numerals in the drawings:

[0023] 1, support plate; 2, latch; 3, fixing screw; 5, electromagnet; 6, armature; 7, power cord; 8, signal wire; 9, connecting pin; 10, connecting block; 11, linkage rod shaft; 12, linkage rod; 13, pull rod; 15, bolt; 16, hoop; 18, fixing piece; 19, lock rod; 21, cover plate; 22, wind vane; 24, handle; 25, dust cover; 26, push handle; 27, return spring; 31, anemometer; 32, relay; 33, DC power supply.

[0024] The realization of the purpose, functional features and advantages of the present invention will be further described with reference to the embodiments and the drawings. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figures 1 - 5 , the present utility model provides an automatic release device for a tower crane wind vane, which includes a wind vane 22 and an anemometer 31. A cover plate 21 is detachably connected to the outer wall of the wind vane 22. An installation component is provided at one end of the cover plate 21 away from the wind vane 22. The wind vane 22 includes a handle 24. The handle 24 penetrates through the wind vane 22. A dust-proof cover 25 is sleeved on the outer wall of the handle 24, and the dust-proof cover 25 is fixedly connected to the outer wall of the wind vane 22. The dust-proof cover 25 prevents dust from entering the gap between the handle 24 and the wind vane 22. A push handle 26 penetrates through the wind vane 22. A return spring 27 is sleeved on the outer wall of the push handle 26. One end of the return spring 27 is fixedly connected to the outer wall of the wind vane 22, and the other end of the return spring 27 is fixedly connected to the outer wall of the push handle 26. The push handle 26 is used to push the wind vane 22 into the release state during the release process, and the return spring 27 is used to automatically reset the wind vane 22 after the release.

[0027] Further, the mounting assembly includes a support plate 1, a lock buckle 2 is fixedly connected to the outer wall of the support plate 1, and the support plate 1 is clamped on the outer wall of the cover plate 21 through the lock buckle 2, and the support plate 1 is detachably connected to the lock rod 19 through the fixing member 18, and the lock buckle 2 and the lock rod 19 are provided with two groups, and the two groups of lock buckles 2 and the lock rod 19 are symmetrically arranged on both sides of the support plate 1 with the midline of the front side of the support plate 1 as the symmetry axis, and the two groups of lock buckles 2 and the lock rod 19 are clamped on the outer wall of the cover plate 21, and the lock buckle 2 and the lock rod 19 clamp the support plate 1 on the cover plate 21 to achieve detachable The support plate 1 is fixedly connected with an electromagnet 5 by a fixing screw 3 arranged at the top, an armature 6 is arranged on the inner wall of the electromagnet 5, and the armature 6 penetrates the support plate 1, and the armature 6 penetrates the support plate 1 and can move under the electromagnetic force of the electromagnet 5, a power line 7 is fixedly connected to the outer wall of the electromagnet 5, the armature 6 is connected to the connecting block 10 by a connecting pin 9 arranged at the bottom thereof, a pull rod 13 is threadedly connected to the inner wall of the connecting block 10, a bolt 15 is clamped at one end of the pull rod 13 away from the connecting block 10, and the connecting block 10 is fixedly connected to the connecting block 10 by a screw provided at the bottom thereof. The bolt 15 is connected with the clamping hoop 16, and the clamping hoop 16 is sleeved with the handle 24 through the bolt 15 provided at the bottom thereof. When the pull rod 13 rises, the clamping hoop 16 drives the end of the handle 24 connected thereto to tilt upward, and the outer wall of the pull rod 13 is abutted with a connecting rod 12, and the connecting rod 12 is rotatably connected with the support plate 1 through a connecting rod shaft 11 provided on its outer wall. The end of the connecting rod 12 away from the pull rod 13 abuts against the outer wall of the push handle 26. When the pull rod 13 rises, it drives the connecting rod 12 to push the push handle 26. The anemometer 31 is fixedly connected to the top of the tower crane, and the power line 7 is connected to the tower crane DC power supply 33, the signal line 8 is electrically connected to the relay 32, the relay 32 is respectively connected to the DC power supply 33 and the electromagnet 5, and the power of the electromagnet 5 is controlled to be turned on and off. The anemometer 31 is fixedly connected to the top of the tower crane to monitor the wind speed in real time. The power line 7 of the anemometer 31 is connected to the tower crane DC power supply 33, and the signal line 8 is electrically connected to the relay 32. When the wind speed reaches above level six, the anemometer 31 sends a signal to the relay 32, and the relay 32 is closed after receiving the signal, and the electromagnet 5 is energized to generate an electromagnetic force to attract the armature 6 to move upward.

[0028] It should be noted that the above-mentioned electrical components are all existing technology products. Technical personnel in this field select, install and complete the circuit debugging work according to the needs of use to ensure that all electrical appliances can work normally. The components are all universal standard parts or components known to technical personnel in this field. Their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods. The applicant does not make specific restrictions here.

[0029] In the present utility model, during use, the anemometer 31 continuously monitors the wind speed and transmits the data to the relay 32 through the signal wire 8. When the wind speed reaches above level six, the anemometer 31 sends a signal to the relay 32. After receiving the signal from the anemometer 31, the relay 32 closes, allowing current to pass through. After the relay 32 closes, the DC power supply 33 of the tower crane supplies power to the electromagnet 5 through the relay 32. After the electromagnet 5 is energized, it generates an electromagnetic force to attract the armature 6 to move upward. When the armature 6 moves upward, it drives the connecting block 10 and the pull rod 13 to rise together through the connecting pin 9. The upward rise of the pull rod 13 causes the end of the clamp 16 connected to the handle 24 to tilt upward. During the upward movement of the pull rod 13, the linkage rod 12 in contact with its outer wall rotates on the support plate 1 through the linkage rod shaft 11. The rotation of the linkage rod 12 pushes the push handle 26 to move inward, compressing the return spring 27. The movement of the push handle 26 triggers the release mechanism of the electric wind vane 22, causing the electric wind vane 22 to enter the release state and automatically lock internally. When the tower crane is restarted again, the self-locking state is automatically released.

[0030] The above are only the preferred embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural transformation made by using the content of the specification and drawings of the present utility model under the inventive concept of the present utility model, or any direct / indirect application in other related technical fields, is included in the patent protection scope of the present utility model.

Claims

1. An automatic release device for an electric wind vane of a tower crane, comprising an electric wind vane (22) and an anemometer (31), characterized in that: A cover plate (21) is detachably connected to the outer wall of the electric weather vane (22), and a mounting assembly is arranged at one end of the cover plate (21) away from the electric weather vane (22). The electric weather vane (22) comprises: A handle (24), the handle (24) passing through the electric wind vane (22), a dust cover (25) sleeved on the outer wall of the handle (24), and the dust cover (25) fixedly connected to the outer wall of the electric wind vane (22); A push handle (26) passes through the electric wind vane (22), a reset spring (27) is sleeved on the outer wall of the push handle (26), one end of the reset spring (27) is fixedly connected to the outer wall of the electric wind vane (22), and the other end of the reset spring (27) is fixedly connected to the outer wall of the push handle (26).

2. The automatic release device for an electric wind vane of a tower crane according to claim 1 is characterized in that: The mounting assembly comprises a support plate (1), a lock buckle (2) being fixedly connected to the outer wall of the support plate (1), and the support plate (1) is clamped on the outer wall of the cover plate (21) via the lock buckle (2), and the support plate (1) is detachably connected to a lock rod (19) via a fixing member (18).

3. The automatic release device for an electric wind vane of a tower crane according to claim 2 is characterized in that: The support plate (1) is fixedly connected to the electromagnet (5) via a fixing screw (3) arranged at the top; an armature (6) is arranged on the inner wall of the electromagnet (5), and the armature (6) passes through the support plate (1); a power line (7) is fixedly connected to the outer wall of the electromagnet (5); the armature (6) is clamped and connected to the connecting block (10) via a connecting pin (9) arranged at the bottom; a pull rod (13) is threadedly connected to the inner wall of the connecting block (10); a bolt (15) is clamped at one end of the pull rod (13) away from the connecting block (10); and the connecting block (10) is clamped and connected to a clamp (16) via a bolt (15) arranged at the bottom; and the clamp (16) is sleeved with the handle (24) via the bolt (15) arranged at the bottom.

4. The automatic release device for the electric wind vane of a tower crane according to claim 3 is characterized in that: A connecting rod (12) is abutted against the outer wall of the pull rod (13); the connecting rod (12) is rotatably connected to the support plate (1) via a connecting rod shaft (11) provided on the outer wall thereof; and one end of the connecting rod (12) away from the pull rod (13) is abutted against the outer wall of the push handle (26).

5. The automatic release device for the electric wind vane of a tower crane according to claim 3 is characterized in that: The anemometer (31) is fixedly connected to the top of the tower crane, the power line (7) is connected to the tower crane DC power supply (33), the signal line (8) is electrically connected to the relay (32), and the relay (32) is respectively connected to the DC power supply (33) and the electromagnet (5) to control the power on and off of the electromagnet (5).

6. The automatic release device for the electric wind vane of a tower crane according to claim 2 is characterized in that: The lock buckles (2) and the lock rods (19) are provided in two groups, and the two groups of the lock buckles (2) and the lock rods (19) are symmetrically arranged on both sides of the support plate (1) with the center line of the front side of the support plate (1) as the symmetry axis, and the two groups of the lock buckles (2) and the lock rods (19) are clamped on the outer wall of the cover plate (21).

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