CN212246019U

CN212246019U - Tower crane bolt looseness alarm device

Info

Publication number: CN212246019U
Application number: CN202020850504.3U
Authority: CN
Inventors: 王峰; 陆总兵; 金胤; 赵志刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-20
Filing date: 2020-05-20
Publication date: 2020-12-29
Anticipated expiration: 2030-05-20

Abstract

The utility model discloses not hard up alarm device of tower crane bolt discloses one kind can detect and report to the police the not hard up condition of bolt through the outage alarm, and not fragile tower crane bolt is not hard up alarm device in the daily operation. The device has simple structure and convenient installation, and the device is not easy to damage in daily operation. The detection device is characterized in that a plurality of detection sleeves are arranged between two fixed plates, the two fixed plates are parallel, a plurality of groups of limiting fixture blocks are fixedly arranged at the bottoms of the fixed plates, one group of limiting fixture blocks consists of two limiting fixture blocks, the plurality of groups of limiting fixture blocks correspond to the plurality of detection sleeves in a one-to-one manner, two symmetrical connecting plates are fixedly arranged on the outer side surfaces of the detection sleeves, one ends of the connecting plates are extended and clamped between the two limiting fixture blocks corresponding to the bottoms of the adjacent fixed plates, two centrosymmetric sliding grooves are formed in the top ends of the detection sleeves, the sliding grooves are formed by gradually downwards cutting along the end surfaces of the top ends of the detection sleeves, an upper contact plate is arranged at.

Description

Tower crane bolt looseness alarm device

Technical Field

The utility model discloses not hard up alarm device of tower crane bolt relates to an alarm device that can be used for monitoring the not hard up condition of tower crane bolt, belongs to the mechanical equipment field. In particular to a tower crane bolt looseness alarm device which can detect and alarm bolt looseness through a power-off alarm and is not easy to damage in daily operation.

Background

The bolt is praised as industrial rice, the application is wide, bolt connection position is easy to loosen due to vibration in long-time use, particularly, frequent shaking caused by daily operation of industrial heavy machinery such as a building tower crane is caused, fastening requirements of the bolt on the bolt are very strict, loosening of the bolt easily causes destructive striking to the whole structure of the machinery, personnel are often required to check bolt pretightening force regularly, but the manual monitoring mode cannot find problems timely, and is high in manpower consumption cost and low in overall monitoring efficiency, and the existing bolt loosening monitoring alarm loading is carried out by using a precision sensor, and the sensor is high in cost, and meanwhile, the precision sensor is easy to damage due to daily operation when being applied to the heavy machinery.

Notice No. CN108548516A discloses a high-strength bolt loosening intelligent monitoring device, which comprises an angle sensor, a data processing conversion module and a main control computer; a hexagonal hole matched with a nut used by the high-strength bolt is formed in the angle sensor and is used for being matched with the fastened nut in an installation mode, and a loosening angle analog quantity signal is measured and output; the data processing and converting module is used for receiving the analog quantity signal and processing and converting the analog quantity signal into loosening angle data which can be recognized by the master control computer; the loading adopts a precise angle sensor, the required cost is high, and meanwhile, the whole device is fragile and easy to damage when being used on heavy machinery.

Disclosure of Invention

In order to improve the condition, the utility model discloses the not hard up alarm device of tower crane bolt provides one kind and can detect and report to the police the not hard up condition of bolt through the outage alarm, and not fragile tower crane bolt is not hard up alarm device in the daily operation. The device has simple structure and convenient installation, and the device is not easy to damage in daily operation.

The utility model discloses tower crane bolt not hard up alarm device is realized like this: the utility model discloses a tower crane bolt looseness alarm device comprises fixed plate, detection cover, spacing fixture block, connecting plate, sliding contact ball, joint cover, spout, upper touch panel, locking tooth, conductive copper sheet, outage alarm, wire and magnetic sheet, two be provided with a plurality of detection cover between the fixed plate, two the fixed plate parallels, fixed plate bottom is fixed with multiunit spacing fixture block, a set of spacing fixture block comprises two spacing fixture blocks, multiunit spacing fixture block and a plurality of detection cover one-to-one correspondence, fixed with two symmetrical connecting plates on the detection cover lateral surface, connecting plate one end extension card is placed between two spacing fixture blocks that correspond of adjacent fixed plate bottom, detection cover top is opened two centrosymmetric spouts, the spout is formed by cutting downwards along detection cover top end face gradually, spout low end department is provided with upper touch panel, the detection sleeve is internally provided with a clamping sleeve, two sliding contact balls are fixedly arranged on the outer side surface of the clamping sleeve, the two sliding contact balls are arranged in the lower ends of the two sliding grooves in a one-to-one correspondence manner, the sliding contact balls are attached to the corresponding upper contact plate, the sliding contact balls are internally provided with conductive copper sheets, one ends of the conductive copper sheets extend into the contact plate, the conductive copper sheets are disconnected at the attachment part of the upper contact plate and the sliding contact balls, the other ends of the conductive copper sheets extend into the clamping sleeve, the clamping sleeve is made of metal conductive materials, the bottom end of the clamping sleeve is provided with anti-loosening teeth, the inner wall of the top end of the clamping sleeve protrudes inwards to form a limiting ring, a magnetic sheet is arranged in the clamping sleeve and connected with the bottom of the limiting ring, the power-off alarm is electrically connected with the conductive copper sheets on the upper contact plate through a lead, the top of the connecting plate is provided, the fixed plate bottom is opened there is spacing sliding tray, the slider is arranged in spacing sliding tray, open at the fixed plate top has a plurality of wiring grooves, the fixed plate overhead has fixed buckle.

Has the beneficial effects.

Firstly, can carry out real-time detection and warning through the power-off alarm to the bolt not hard up condition, it is simple and convenient to use.

Secondly, the device has simple structure and convenient installation, and the device is not easy to damage in daily operation.

Thirdly, the device is low in cost and suitable for popularization.

Drawings

Fig. 1 the utility model discloses not hard up alarm device of tower crane bolt's three-dimensional structure chart.

Fig. 2 the utility model discloses tower crane bolt not hard up alarm device joint cover's three-dimensional split map.

FIG. 3 the utility model discloses the not hard up alarm device of tower crane bolt conductive copper sheet's schematic structure diagram.

Fig. 4 the utility model discloses not hard up alarm device of tower crane bolt structure schematic diagram when using.

In the attached drawings

Wherein the method comprises the following steps: the device comprises a fixing plate 1, a detection sleeve 2, a limiting clamping block 3, a connecting plate 4, a sliding contact ball 5, a clamping sleeve 6, a bolt 7, a sliding groove 8, an upper touch plate 9, a locking tooth 10, a conductive copper sheet 11, a power-off alarm 12, a lead 13 and a magnetic sheet 14.

The specific implementation mode is as follows:

the utility model discloses a tower crane bolt looseness alarm device is realized like this, by fixed plate 1, detect set 2, spacing fixture block 3, connecting plate 4, sliding contact ball 5, joint cover 6, spout 8, upper touch panel 9, locking tooth 10, conductive copper sheet 11, outage alarm 12, wire 13 and magnetic sheet 14 constitute, two be provided with a plurality of detect set 2 between fixed plate 1, two fixed plate 1 are parallel, fixed plate 1 bottom is provided with multiunit spacing fixture block 3, a set of spacing fixture block 3 comprises two spacing fixture block 3, multiunit spacing fixture block 3 and a plurality of detect set 2 one-to-one correspondence, fixed on the detection cover 2 lateral surface are two symmetrical connecting plate 4, connecting plate 4 one end extends to block and locates between two spacing fixture block 3 that adjacent fixed plate 1 bottom corresponds, detection cover 2 top is opened has two centrosymmetric spouts 8, the sliding groove 8 is formed by gradually cutting downwards along the end face of the top end of the detection sleeve 2, the upper touch panel 9 is arranged at the lower end of the sliding groove 8, the clamping sleeve 6 is arranged in the detection sleeve 2, two sliding contact balls 5 are fixedly arranged on the outer side face of the clamping sleeve 6, the two sliding contact balls 5 are arranged in the lower ends of the two sliding grooves 8 in a one-to-one correspondence manner, the sliding contact balls 5 are attached to the corresponding upper touch panel 9, the sliding contact balls 5 are internally provided with conductive copper sheets 11, one ends of the conductive copper sheets 11 extend into the upper touch panel 9, the conductive copper sheets 11 are disconnected at the attachment part of the upper touch panel 9 and the sliding contact balls 5, the other ends of the conductive copper sheets 11 extend into the clamping sleeve 6, the clamping sleeve 6 is made of metal conductive materials, the bottom end of the clamping sleeve 6 is provided with anti-loosening teeth 10, the inner wall of the top end of the clamping sleeve 6 protrudes inwards to form a limiting ring, the magnetic sheet 14 is arranged in the clamping sleeve, the power-off alarm 12 is electrically connected with the conductive copper sheet 11 on the upper touch panel 9 through a wire 13, a wire clamping groove is formed in the top of the connecting plate 4, a sliding block is arranged on the limiting clamping block 3, a limiting sliding groove is formed in the bottom of the fixing plate 1, the sliding block is arranged in the limiting sliding groove, a plurality of wiring grooves are formed in the top of the fixing plate 1, and a fixing buckle is arranged on the fixing plate 1.

When the alarm device is used, the clamping sleeves 6 on the alarm device are sleeved on the bolts 7 in a one-to-one correspondence mode, under the action of the magnetic sheet 14, the clamping sleeves 6 can be adsorbed at the tops of the bolts 7, at the moment, the sliding contact ball 5 is placed at the bottom of the sliding groove 8, the conductive copper sheets 11 in the sliding contact ball 5 can be contacted with the conductive copper sheets 11 in the upper contact plate 9, the connecting plate 4 cannot rotate under the limitation of the limiting clamping block 3, the detection sleeve 2 cannot rotate, the clamping sleeves 6 are made of metal, at the moment, the bolts 7, the conductive copper sheets 11, the clamping sleeves 6 and the wires 13 can jointly form a closed circuit, a power supply is started, and the power-off alarm device 12 can be started to work;

when the bolt 7 becomes loose, the clamping sleeve 6 is connected with the detection sleeve 2 through the sliding contact ball 5, the bolt 7 can drive the clamping sleeve 6 to rotate, and further can drive the sliding contact ball 5 to slide, and the connection plate 4 cannot rotate due to the limitation of the limiting fixture block 3 on the fixing plate 1, so that the detection sleeve 2 cannot rotate, the sliding contact ball 5 gradually slides along the chute 8 along with the loosening of the bolt 7, when the sliding contact ball 5 slides to the conductive copper sheet 11 in the sliding contact ball 5 and is disconnected with the conductive copper sheet 11 in the upper contact plate 9, the circuit between the conductive copper sheet 11 and the lead 13 is disconnected, so that the circuit of the whole device is disconnected, and at the moment, the power-off alarm 12 can give an alarm to prompt the loosening of the bolt 7;

after the operator checks and screws the bolt 7 again, the clamping sleeve 6 is sleeved on the bolt 7 again, and then the real-time monitoring work can be continuously carried out;

the sliding blocks are arranged on the limiting clamping blocks 3, the limiting sliding grooves are formed in the bottoms of the fixing plates 1, and the sliding blocks are arranged in the limiting sliding grooves, so that the distance between two adjacent groups of limiting clamping blocks 3 can be adjusted according to the distance between the bolts 7, and the use is more convenient;

the top of the fixing plate 1 is provided with a plurality of wiring grooves, the top of the connecting plate 4 is provided with a wire clamping groove, when a wire 13 is connected, the wire 13 can be placed in the wiring grooves and the wire clamping groove, and the influence on the normal use of the device due to the disorder of the wire 13 is avoided;

the bottom of the clamping sleeve 6 is provided with the anti-loosening teeth 10, so that the friction between the bottom of the clamping sleeve 6 and the bolt 7 can be increased, and the bolt 7 is prevented from sliding relative to the clamping sleeve 6;

the fixing buckle is arranged on the fixing plate 1, so that the fixing plate 1 and the detection sleeve 2 can be further fixed from other directions, and the fixing plate 1 is prevented from sliding off the detection sleeve 2 to influence the normal use of the device;

the purpose that the bolt 7 is not easy to damage when in use can be achieved by detecting and alarming the loosening condition of the bolt 7 through the power-off alarm 12.

The above embodiments are the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Any person skilled in the art can make some modifications without departing from the scope of the invention, i.e. all equivalent modifications made according to the invention are intended to be covered by the scope of the invention.

It should also be noted that, unless otherwise specifically stated or limited, the terms "disposed on," "mounted on," "connected to" and "connected to" are to be construed broadly and may include, for example, a fixed connection such as a crimped connection, a riveted connection, a pinned connection, an adhesive connection, a welded connection, a removable connection such as a threaded connection, a snap connection, a hinged connection, an integral connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Claims

1. A tower crane bolt looseness alarm device is characterized by comprising fixing plates, detection sleeves, limiting clamping blocks, connecting plates, sliding contact balls, clamping sleeves, sliding grooves, upper contact plates, anti-loosening teeth, conductive copper sheets, a power failure alarm, a wire and magnetic sheets, wherein a plurality of detection sleeves are arranged between the two fixing plates, the two fixing plates are parallel, a plurality of groups of limiting clamping blocks are fixed at the bottoms of the fixing plates, one group of limiting clamping blocks consists of two limiting clamping blocks, the plurality of groups of limiting clamping blocks correspond to the detection sleeves in a one-to-one mode, two symmetrical connecting plates are fixed on the outer side faces of the detection sleeves, one end of each connecting plate extends to be clamped between the two corresponding limiting clamping blocks at the bottoms of the adjacent fixing plates, the top ends of the detection sleeves are provided with the two sliding grooves which are centrosymmetric, the upper contact plates are arranged at the lower ends of, the sliding contact ball power supply is characterized in that two sliding contact balls are fixedly arranged on the outer side surface of the clamping sleeve, the sliding contact balls are arranged in two sliding groove low ends in a one-to-one correspondence mode, the sliding contact balls are attached to corresponding upper contact plates, conductive copper sheets are arranged in the sliding contact balls, one ends of the conductive copper sheets extend into the upper contact plates, the conductive copper sheets are disconnected at the attaching positions of the upper contact plates and the sliding contact balls, the other ends of the conductive copper sheets extend into the clamping sleeve, the inner wall of the top end of the clamping sleeve protrudes inwards to form a limiting ring, and the power-off alarm is electrically connected with the conductive copper sheets on the upper contact plates through wires.

2. The tower crane bolt loosening alarm device according to claim 1, wherein the chute is formed by gradually cutting downwards along the end surface of the top end of the detection sleeve.

3. The tower crane bolt loosening alarm device according to claim 1, wherein anti-loosening teeth are arranged at the bottom end of the clamping sleeve.

4. The tower crane bolt loosening alarm device according to claim 1 or 3, wherein a magnetic sheet is arranged in the clamping sleeve, and the magnetic sheet is connected with the bottom of the limiting ring.

5. The tower crane bolt loosening alarm device according to claim 1, wherein a sliding block is arranged on the limiting clamping block, a limiting sliding groove is formed in the bottom of the fixing plate, and the sliding block is arranged in the limiting sliding groove.

6. The tower crane bolt loosening alarm device according to claim 1 or 5, wherein a plurality of wiring slots are formed in the top of the fixing plate.

7. The tower crane bolt loosening alarm device according to claim 6, wherein a fixing buckle is arranged on the fixing plate.

8. The tower crane bolt loosening alarm device according to claim 1, wherein a wire clamping groove is formed in the top of the connecting plate.