CN218181648U - Anti-loosening alarm device for engineering machinery bolt - Google Patents
Anti-loosening alarm device for engineering machinery bolt Download PDFInfo
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- CN218181648U CN218181648U CN202222155362.0U CN202222155362U CN218181648U CN 218181648 U CN218181648 U CN 218181648U CN 202222155362 U CN202222155362 U CN 202222155362U CN 218181648 U CN218181648 U CN 218181648U
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Abstract
The utility model discloses an engineering machine tool bolt locking alarm device, include: the shell is detachably arranged on the bolt and is positioned outside the nut on the bolt; a pair of stationary contacts disposed within the housing; the alarm is electrically connected with the static contact; a pair of movable contacts arranged in the shell, and the pair of movable contacts are electrically connected; the pushing piece is arranged on the shell, the tail end of the pushing piece fixes the moving contact, and the pushing piece is positioned on one side facing the nut; when the pushing piece pushes the movable contacts to move towards the fixed contacts for a certain distance, the pair of movable contacts are communicated with the pair of fixed contacts in a one-to-one correspondence mode, and the power supply supplies power to the alarm. The utility model discloses have real time monitoring engineering machine tool transmission or important position fastening bolt's not hard up state, when the bolt is not hard up, trigger alarm, the beneficial effect of suggestion staff in time eliminating the potential safety hazard.
Description
Technical Field
The utility model relates to an engineering construction, engineering machine tool make and automatic field thereof. More specifically speaking, the utility model relates to an engineering machine tool bolt locking alarm device.
Background
The majority of engineering machinery assembly is connected and fixed through bolts, for example: the fixing bolt at the connecting end can be loosened after long-term use of equipment such as a bridge girder erection machine, a gantry crane and a tower crane, and particularly, the transmission part is influenced by various impact loads, so that the service life is shortened, and the phenomena of loosening of the fastening bolt, impact fracture and the like are easy to occur. The transmission of the engineering machinery or the bolt connection fixed position of an important part has no anti-loosening early warning measure, and the occurrence of safety accidents caused by the fact that the screw loosening and breaking faults cannot be found in time.
SUMMERY OF THE UTILITY MODEL
It is an object of the present invention to solve at least the above problems and to provide at least the advantages which will be described later.
In order to realize and be according to the utility model discloses these objects and other advantages, provide an engineering machine tool bolt locking alarm device, include:
the shell is detachably arranged on the bolt and is positioned outside the nut on the bolt;
a pair of stationary contacts disposed within the housing;
the alarm is electrically connected with the static contact;
a pair of movable contacts arranged in the shell, and the pair of movable contacts are electrically connected;
the pushing piece is arranged on the shell, the tail end of the pushing piece fixes the movable contact, and the pushing piece is positioned on one side facing the nut;
when the pushing piece pushes the movable contacts to move a certain distance towards the fixed contacts, the pair of movable contacts are communicated with the pair of fixed contacts in a one-to-one correspondence mode;
and the power supply is used for supplying power to the alarm.
Preferably, the pusher member comprises:
the limiting plate is fixed in the shell, and a through hole is formed in the limiting plate;
the movable contact is arranged at the tail end of the limiting bulge II;
the spring is sleeved on the rod body and positioned between the limiting plate and the limiting protrusion I, the diameter of the spring is larger than that of the through hole, and the diameter of the spring is smaller than the size of the limiting protrusion I along the radial direction of the rod body;
when an external force is not applied to the rod body, two ends of the spring are respectively contacted with the limiting plate and the limiting upper bulge I;
when a certain external force acting towards the fixed contact is applied to the rod body, the rod body moves for a certain distance towards the fixed contact, and the movable contact is communicated with the fixed contact.
Preferably, the number of the pushing pieces is two, the two pushing pieces are oppositely located on two sides of the bolt, and the two pushing pieces are respectively provided with a moving contact.
Preferably, the guide cylinder is fixed on the shell and sleeved outside the spring.
Preferably, the telescopic rod further comprises a pair of spring seats, the pair of spring seats are respectively arranged at two ends of the spring, through holes are formed in the spring seats, and the diameter of each through hole is larger than that of the rod body.
Preferably, the shell is nut-like, a threaded hole is formed in the middle of the shell, and the shell is in threaded connection with the bolt.
Preferably, the alarm comprises an audible and visual alarm and a remote wireless alarm, the audible and visual alarm and the remote wireless alarm are connected in parallel, and the remote wireless alarm is wirelessly connected with an electronic receiving end.
Preferably, the alarm further comprises an intermediate relay, a normally open end of the intermediate relay is connected with the power supply, and an output end of the intermediate relay 14 is connected with the alarm. .
The utility model discloses at least, include following beneficial effect:
firstly, the use safety aspect: the real-time monitoring is carried out on the fastening bolt which is easy to loosen of the engineering machinery, when the loosening phenomenon happens, the alarm is started in time, the operation personnel is prompted to carry out fastening work on the fastening bolt in time, and the probability of potential safety hazard caused by the fact that the worker is not in place in patrol is reduced.
Secondly, the service life is prolonged, and the maintenance cost is saved: the bolt loosening condition of a transmission or an important part is effectively monitored in real time, and the labor intensity of maintenance of operators is reduced; the damage of the fastening bolt caused by looseness and fracture is reduced, the damage rate of the monitoring part is reduced, the service life is prolonged, and the maintenance and updating cost is increased.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic structural diagram of the alarm device according to one embodiment of the present invention;
fig. 2 is a detail view of the pusher member of one of the solutions of the present invention;
fig. 3 is a schematic circuit connection diagram of the alarm device according to one of the technical solutions of the present invention.
Detailed Description
The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.
It is to be noted that the experimental methods described in the following embodiments are all conventional methods unless otherwise specified, and the reagents and materials, if not otherwise specified, are commercially available; in the description of the present invention, the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, and do not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
As shown in fig. 1 to 3, the reference numerals are interpreted as follows: the device comprises a shell 1, a bolt 2, a nut 3, a fixed contact 4, a pushing piece 5, a movable contact 6, a limiting plate 7, a rod body 8, a limiting protrusion I9, a limiting protrusion II 10, a spring 11, a guide cylinder 12, a spring seat 13, an audible and visual alarm 51, a remote wireless alarm 52, an intermediate relay 14, a butt joint 15, an electronic receiving end 16 and a control box 17.
As shown in fig. 1-3, the utility model provides an engineering machine tool bolt anti-loosening alarm device, include:
a housing 1 detachably provided on a bolt 2 and located outside a nut 3 on the bolt 2; the detachable connection mode can adopt that a threaded hole is arranged on the shell 1 and is fixed on the bolt 2 in a threaded connection mode. Also can adopt and set up the hole on casing 1, the cover is on bolt 2, then installs the clamp on casing 1, and the clamp locking realizes casing 1's fixed on bolt 2.
A pair of stationary contacts 4 provided in the housing 1;
an alarm electrically connected to the stationary contact 4; the stationary contact 4 is connected with an alarm through an electric wire, and the alarm can adopt an audible and visual alarm 51 or a remote wireless alarm 52.
A pair of movable contacts 6 disposed in the housing 1, the pair of movable contacts 6 being electrically connected to each other;
a pushing member 5 disposed on the housing 1, a tip of the pushing member 5 fixing the moving contact 6, the pushing member 5 being located on a side facing the nut 3;
the spring type press switch can be adopted, the spring type press switch comprises the fixed contact 4, the movable contact 6 and the pushing piece 5, and the movable contact 6 can be communicated with the fixed contact 4 to trigger the alarm to start as long as the spring type press switch is pressed.
When the pushing piece 5 pushes the movable contacts 6 to move a certain distance towards the fixed contacts 4, the pair of movable contacts 6 are communicated with the pair of fixed contacts 4 in a one-to-one correspondence manner;
and the power supply is used for supplying power to the alarm.
In the technical scheme, the shell 1 is installed on the bolt 2 where the nut 3 to be monitored is located, and the distance between the pushing piece 5 and the nut 3 is controlled according to actual requirements. When the nut 3 is not hard up, then must move towards the casing 1 direction, when the not hard up distance of nut 3 reaches a timing, then can promote impeller 5 and remove towards the direction of stationary contact, after the displacement reaches a definite value, movable contact 6 and stationary contact 4 switch-on trigger the alarm and report to the police to make things convenient for the staff in time to discover, reduce the potential safety hazard. The safety distance for loosening the nut 3 is usually 5mm, so that the movable contact 6 is connected with the fixed contact 4 when the nut 3 moves for 5 mm.
The loosening state of the engineering machinery transmission or the fastening bolt 2 at the important part is monitored in real time, and when the bolt 2 is loosened, an alarm is triggered to prompt workers to eliminate potential safety hazards in time. The alarm device has the advantages of simple structure, convenient maintenance, low installation and use cost and stable and reliable performance.
In another solution, the pusher 5 comprises:
the limiting plate 7 is fixed in the shell 1, and a through hole is formed in the limiting plate 7;
the rod body 8 is movably arranged on the through hole in a penetrating mode, a limiting bulge I9 and a limiting bulge II 10 are arranged in the middle of the rod body 8 and at the tail end of the rod body 8 respectively, the size of the limiting bulge II 10 along the radial direction of the rod body 8 is larger than the diameter of the through hole, and the movable contact 6 is arranged at the tail end of the limiting bulge II 10; the limiting protrusion II 10 is located between the static contact 4 and the limiting plate 7, and the rod body 8 is prevented from being completely separated from the limiting plate 7.
The spring 11 is sleeved on the rod body 8 and is positioned between the limiting plate 7 and the limiting protrusion I9, the diameter of the spring 11 is larger than that of the through hole, and the diameter of the spring 11 is smaller than the size of the limiting protrusion I9 along the radial direction of the rod body 8; when the rod body 8 moves towards the direction of the stationary contact 4 under the action of external force, the limiting protrusion I9 compresses the spring 11, overcomes the elastic force of the spring 11 to move towards the stationary contact 4, and finally enables the movable contact 6 to be communicated with the stationary contact 4. When the worker tightens the nut 3 again, the spring 11 is deformed again, the limiting protrusion I9 is forced to move away from the direction of the static contact 4, and finally the movable contact 6 is disconnected from the static contact 4.
When no external force is applied to the rod body 8, two ends of the spring 11 are respectively contacted with the limiting plate 7 and the limiting upper bulge I;
when a certain external force is applied to the lever body 8 toward the stationary contact 4, the lever body 8 moves a certain distance toward the stationary contact 4, and the movable contact 6 is brought into contact with the stationary contact 4.
The starting end of the rod body 8 is provided with a butt joint head 15, so that the nut 3 can act on the rod body 8 conveniently.
In above-mentioned technical scheme, through setting up limiting plate 7, spring 11, spacing arch I9 and spacing arch II 10 can make the body of rod 8 keep quiescent condition when not receiving the exogenic action, can automatic recovery to former quiescent condition under spring 11's effect.
In another technical scheme, the number of the pushing pieces 5 is two, the two pushing pieces 5 are oppositely positioned on two sides of the bolt 2, and the two pushing pieces 5 are respectively provided with a movable contact 6. After the nut 3 is loosened, the nut is more firmly contacted with the initial end of the pushing piece 5, and the force application is more balanced.
In another technical solution, the device further comprises a guide cylinder 12 fixed on the housing 1 and sleeved outside the spring 11. The guide device is beneficial to guiding the rod body 8, so that the rod body 8 moves along the axial direction of the guide cylinder 12, deflection is avoided, and the connection accuracy between the movable contact 6 and the fixed contact 4 is improved.
In another technical scheme, the telescopic rod further comprises a pair of spring seats 13, the pair of spring seats 13 are respectively arranged at two ends of the spring 11, through holes are formed in the spring seats 13, and the diameter of each through hole is larger than that of the rod body 8. The arrangement of the spring seat 13 can make the stress more uniform when the spring 11 is compressed, and the deflection is not easy to occur.
In another technical scheme, the shell 1 is in a nut-like 3 shape, a threaded hole is formed in the middle of the shell 1, and the shell 1 is in threaded connection with the bolt 2. The screw connection mode is adopted for installation and disassembly, the operation is convenient and fast, and the structure is simple and easy to process.
In another technical scheme, the alarm comprises an audible and visual alarm 51 and a remote wireless alarm 52, the audible and visual alarm 51 and the remote wireless alarm 52 are connected in parallel, and the remote wireless alarm 52 is wirelessly connected with an electronic receiving end 16. Usually, the nut 3 to be monitored for preventing looseness is not only one, but also a worker is not located near the nut 3 and the alarm for 24 hours a day at some times, so that wireless alarm can be realized by arranging the remote wireless alarm 52, and convenience is improved.
The remote wireless alarm 52 may be wirelessly connected to the electronic receiving end 16, such as a mobile phone receiving end, a computer receiving end. Aiming at the increase of the number of the nuts 3 to be monitored, the channel parameters of the remote wireless alarm 52 can be correspondingly numbered, so that the bolts 2 for alarming loosening can be timely processed according to the corresponding numbers, the positioning is accurate, and the hidden danger of loosening of the bolts 2 is eliminated.
The audible and visual alarm 51 can adopt a loud flashing buzzer AD16-22SM, has small volume and is conveniently arranged on the control box 17.
The remote wireless alarm 52 may be an industrial-grade input monitoring alarm developed based on a 4G module. "Yinluda", model number YED-A4106. After detecting the level change of the data GPIO of the monitored equipment, the monitoring equipment can inform an administrator of the abnormity of the monitored equipment through various alarm modes such as telephone, short message, weChat and the like, thereby realizing the remote maintenance function of the equipment, greatly reducing the manual maintenance frequency and cost and simultaneously processing the fault information in time. The method is mainly characterized in that:
1. wide voltage power supply for supporting 5-36V external power supply
2. Support up to 6 input detections; optical coupling isolation, independent safety
3. The input detection high level triggers, can detect the voltage range 3.3V-30V
4. 4G communication, master communication mode
5. Support telephone, short message, little letter alarm
6. Meanwhile, at most 3 groups of administrator telephone numbers are supported, and stability is improved.
In another technical scheme, the alarm device further comprises an intermediate relay 14, wherein a normally open end of the intermediate relay 14 is connected with the power supply, and an output end of the intermediate relay 14 is connected with the alarm device.
When a plurality of bolts need to be monitored, a main switch can be arranged, a plurality of switches are connected on the main switch in parallel, each path of switch is correspondingly connected with the normally open ends of a plurality of intermediate relays, and the output ends of the switches are respectively connected with the remote wireless alarm 52 and the audible and visual alarm 51. The intermediate relay 14 may relay the remote wireless alarm 52 and the audible-visual alarm 51. The intermediate relay 14 can adopt a small positive Tai relay JTX-3C, and the direct-current voltage is 24V.
While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, particular embodiments, but rather to those skilled in the art, having the benefit of the teachings of the present invention, which is capable of numerous modifications and alternative forms, and will be readily apparent to those skilled in the art, and it is not intended to limit the invention to the details shown and described without departing from the general concepts defined by the appended claims and their equivalents.
Claims (8)
1. Engineering machine tool bolt locking alarm device, its characterized in that includes:
a housing detachably provided on the bolt and located outside the nut on the bolt;
a pair of stationary contacts disposed within the housing;
the alarm is electrically connected with the static contact;
the pair of movable contacts are arranged in the shell and electrically connected with each other;
the pushing piece is arranged on the shell, the tail end of the pushing piece fixes the movable contact, and the pushing piece is positioned on one side facing the nut;
when the pushing piece pushes the movable contacts to move a certain distance towards the fixed contacts, the pair of movable contacts are communicated with the pair of fixed contacts in a one-to-one correspondence mode;
and the power supply is used for supplying power to the alarm.
2. The anti-loosening alarm device for engineering machinery bolt of claim 1, wherein the pushing member comprises:
the limiting plate is fixed in the shell and is provided with a through hole;
the movable contact is arranged at the tail end of the limiting bulge II;
the spring is sleeved on the rod body and positioned between the limiting plate and the limiting bulge I, the diameter of the spring is larger than that of the through hole, and the diameter of the spring is smaller than the size of the limiting bulge I along the radial direction of the rod body;
when an external force is not applied to the rod body, two ends of the spring are respectively contacted with the limiting plate and the limiting upper bulge I;
when a certain external force acting towards the static contact is applied to the rod body, the rod body moves for a certain distance towards the static contact, and the movable contact is communicated with the static contact.
3. The anti-loosening alarm device for the engineering machinery bolt as claimed in claim 2, wherein the number of the pushing members is two, two pushing members are oppositely arranged on two sides of the bolt, and a moving contact is respectively arranged on the two pushing members.
4. The anti-loosening alarm device for the engineering machinery bolt as claimed in claim 2, further comprising a guide cylinder fixed on the housing and sleeved outside the spring.
5. The anti-loosening alarm device for the engineering machinery bolt as claimed in claim 2, further comprising a pair of spring seats, wherein the pair of spring seats are respectively disposed at two ends of the spring, the spring seats are provided with through holes, and the diameter of the through holes is larger than that of the rod body.
6. The anti-loosening alarm device for the engineering machinery bolt as claimed in claim 1, wherein the casing is in a nut-like shape, a threaded hole is formed in the middle of the casing, and the casing is screwed on the bolt.
7. The anti-loosening alarm device for the engineering machinery bolt as claimed in claim 1, wherein the alarm comprises an audible and visual alarm and a remote wireless alarm, the audible and visual alarm and the remote wireless alarm are connected in parallel, and the remote wireless alarm is wirelessly connected with an electronic receiving end.
8. The anti-loosening alarm device for the engineering machinery bolt as claimed in claim 7, further comprising an intermediate relay, wherein the normally open end of the intermediate relay is connected with the power supply, and the output end of the intermediate relay is connected with the alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222155362.0U CN218181648U (en) | 2022-08-16 | 2022-08-16 | Anti-loosening alarm device for engineering machinery bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222155362.0U CN218181648U (en) | 2022-08-16 | 2022-08-16 | Anti-loosening alarm device for engineering machinery bolt |
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| Publication Number | Publication Date |
|---|---|
| CN218181648U true CN218181648U (en) | 2022-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222155362.0U Active CN218181648U (en) | 2022-08-16 | 2022-08-16 | Anti-loosening alarm device for engineering machinery bolt |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116429231A (en) * | 2023-06-08 | 2023-07-14 | 南京三倍速机电有限公司 | Frequency converter detection device and method |
| CN117842872A (en) * | 2024-03-08 | 2024-04-09 | 浙江省三建建设集团有限公司 | Early warning device and method for monitoring loosening of standard section bolt of tower crane |
-
2022
- 2022-08-16 CN CN202222155362.0U patent/CN218181648U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116429231A (en) * | 2023-06-08 | 2023-07-14 | 南京三倍速机电有限公司 | Frequency converter detection device and method |
| CN116429231B (en) * | 2023-06-08 | 2023-08-22 | 南京三倍速机电有限公司 | Frequency converter detection device and method |
| CN117842872A (en) * | 2024-03-08 | 2024-04-09 | 浙江省三建建设集团有限公司 | Early warning device and method for monitoring loosening of standard section bolt of tower crane |
| CN117842872B (en) * | 2024-03-08 | 2024-05-07 | 浙江省三建建设集团有限公司 | Early warning device and method for monitoring loosening of standard section bolt of tower crane |
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