Alarm device suitable for tower crane standard knot pin shaft connection

Abstract

The utility model discloses an alarm device suitable for tower crane standard knot pin shaft connection, which comprises a tower crane standard knot body and a pin shaft body, the top end of the tower crane standard knot body is respectively provided with a plurality of support legs, the bottom end of the tower crane standard knot body is respectively provided with a plurality of slots, the plurality of support legs are respectively provided with an insertion hole, and the pin shaft body is arranged in the insertion hole. The contact type pressure sensor detects that the movable plate generates downward acting force, the contact type pressure sensor transmits an electric signal to the control box, and the control box transmits the signal to the corresponding audible and visual alarm, so that the audible and visual alarm located above the corresponding pin shaft body is turned on, the alarming function is achieved, and the safety of the pin shaft is improved. According to the tower crane standard knot body, a worker can conveniently find the risk that the corresponding pin shaft body possibly breaks away in time, fastening measures on the bolts and the nuts are taken in time, the stability of connection and installation between the tower crane standard knot bodies is guaranteed, and the situation that the tower crane body inclines and collapses is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of tower crane standard sections, in particular to a pin shaft connection alarm device suitable for tower crane standard sections. Background Art

[0002] The tower crane standard section is a tower crane component commonly used in construction. It is used to build the main structure of the tower crane. The connection and installation between the tower crane standard sections often use pins. The tower crane standard section pin is a key component of the tower crane and is usually used to connect the tower crane's standard section and the legs.

[0003] After the existing pin shaft is connected and installed with the tower crane standard section and the support leg, it is necessary to insert the installation bolts and nuts into the pin shaft hole at one end of the pin shaft to prevent the pin shaft connected to the tower crane standard section and the support leg from detaching and falling. However, during long-term use, the bolts and nuts are prone to loosening and detaching from the pin shaft, thereby increasing the risk of the pin shaft detaching from the tower crane standard section and the support leg, thereby affecting the stability of the connection between the tower crane standard sections and easily causing the tower crane body to tilt or collapse. Therefore, we propose an alarm device for the pin shaft connection of the tower crane standard section to solve the above problem. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an alarm device suitable for a standard section pin shaft connection of a tower crane, which is used to solve the above-mentioned problems.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A pin shaft connection alarm device suitable for a tower crane standard section comprises a tower crane standard section body and a pin shaft body, the top of the tower crane standard section body is respectively provided with a plurality of legs, the bottom end of the tower crane standard section body is respectively provided with a plurality of slots, the plurality of legs are respectively provided with sockets, the tower crane standard section body is respectively provided with a plurality of side holes, the plurality of legs on the corresponding tower crane standard section body are respectively inserted into the corresponding slots at the bottom end of another tower crane standard section body, the plurality of pin shaft bodies are respectively inserted into the corresponding sockets and side holes, the pin shaft body is provided with a pin shaft hole, a fastener mechanism is provided in the pin shaft hole, the tower crane standard section body is respectively provided with a plurality of movable grooves, a bendable metal plate is installed in the movable groove through an elastic force adjustment mechanism, contact pressure sensors are provided in the plurality of movable grooves, a plurality of sound and light alarms are respectively fixedly installed on the tower crane standard section body, and a control box is fixedly installed on the tower crane standard section body.

[0007] Preferably, the multiple side holes are respectively located at the four corners of the bottom side of the tower crane standard section body, and the multiple side holes are respectively connected to the corresponding slots.

[0008] Preferably, the fastener mechanism includes a bolt and a nut, the bolt is inserted into the pin shaft hole, and the nut is threadedly installed on the bolt. By inserting the bolt into the pin shaft hole at one end of the pin shaft body and threading the nut on the bolt, the pin shaft body is limited to prevent the pin shaft body from detaching.

[0009] Preferably, the elastic force adjustment mechanism includes a movable plate and a spring. The movable plate is movably installed in the movable groove, one end of the spring is fixedly installed on the bottom side of the movable plate, and the other end of the spring is fixedly installed on the bottom inner wall of the movable groove. The movable plate is fixedly connected to the bendable metal plate, so as to facilitate the upward and downward movable adjustment of the bendable metal plate.

[0010] Preferably, the bendable metal plate is located below the bolt, and a gap is provided between the bendable metal plate and the bolt. When the bolt and the nut become detached due to looseness, the bolt falls onto the bendable metal plate, causing the bendable metal plate to drive the movable plate to slide downward in the movable groove.

[0011] Preferably, the contact pressure sensor is located inside the spring, a contact point is provided at the top of the contact pressure sensor, a gap is provided between the contact point and the movable plate, and when the bottom side of the movable plate abuts against the contact point at the top of the contact pressure sensor, the contact pressure sensor detects that the movable plate generates a downward force.

[0012] Preferably, multiple contact pressure sensors are electrically connected to the control box, and multiple sound and light alarms are electrically connected to the control box. When the contact pressure sensor detects that the movable plate has generated a downward force, the contact pressure sensor transmits an electrical signal to the control box, and the control box transmits the signal to the corresponding sound and light alarm, so that the sound and light alarm located above the corresponding pin shaft body is turned on, providing an alarm function.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the pin shaft connection alarm device applicable to the standard section of the tower crane is provided with an audible and visual alarm at the upper position of the pin shaft body connected and installed on the standard section body of the tower crane. When the bolt fastened in the pin shaft hole of the pin shaft body is detached, the bolt falls onto the bendable metal plate, so that the bendable metal plate drives the movable plate to slide downward in the movable groove. When the bottom side of the movable plate abuts against the contact point at the top of the contact pressure sensor, the contact pressure sensor detects that the movable plate has generated a downward force. The contact pressure sensor transmits an electrical signal to the control box, and the control box transmits the signal to the corresponding audible and visual alarm, so that the audible and visual alarm located above the corresponding pin shaft body is turned on, providing an alarm function, facilitating personnel to promptly discover the risk that the corresponding pin shaft body may be detached, and promptly take measures to tighten the bolts and nuts, thereby ensuring the stability of the connection and installation between the standard section bodies of the tower crane and reducing the occurrence of tilting and collapse of the tower crane body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a structural schematic diagram of a partial cross-section of the slot of the utility model;

[0016] Figure 3 For this utility model Figure 2 Schematic diagram of the structure of part A;

[0017] Figure 4 This is a schematic diagram of the structure of the utility model in a partial cross-section from an explosion perspective;

[0018] Figure 5 For this utility model Figure 4 Schematic diagram of the structure of part B.

[0019] In the figure: 1. tower crane standard section body; 2. pin shaft body; 3. support leg; 4. slot; 5. socket; 6. side hole; 7. pin shaft hole; 8. bolt; 9. nut; 10. movable slot; 11. movable plate; 12. spring; 13. bendable metal plate; 14. contact pressure sensor; 15. sound and light alarm; 16. control box. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example: Refer to Figure 1-5 A pin shaft connection alarm device suitable for a tower crane standard section comprises a tower crane standard section body 1 and a pin shaft body 2, a plurality of legs 3 are respectively arranged at the top of the tower crane standard section body 1, a plurality of slots 4 are respectively opened at the bottom of the tower crane standard section body 1, a plurality of legs 3 are respectively opened with plug holes 5, a plurality of side holes 6 are respectively opened on the tower crane standard section body 1, a plurality of legs 3 on the corresponding tower crane standard section body 1 are respectively inserted into the corresponding slots 4 at the bottom end of another tower crane standard section body 1, a plurality of pin shaft bodies 2 are respectively inserted into the corresponding plug holes 5 and side holes 6, a pin shaft hole 7 is opened on the pin shaft body 2, a fastener mechanism is arranged in the pin shaft hole 7, the fastener mechanism comprises a bolt 8 and a nut 9, a bolt 8 is inserted and installed in the pin shaft hole 7, a nut 9 is threadedly installed on the bolt 8, by inserting the bolt 8 into the pin shaft hole 7 at one end of the pin shaft body 2, and using The nut 9 is threadedly installed on the bolt 8 to limit the pin shaft body 2 and prevent the pin shaft body 2 from detaching; a plurality of movable grooves 10 are respectively opened in the standard section body 1 of the tower crane, and a bendable metal plate 13 is installed in the movable groove 10 through an elastic adjustment mechanism. The elastic adjustment mechanism includes a movable plate 11 and a spring 12. The movable plate 11 is movably installed in the movable groove 10, and one end of the spring 12 is fixedly installed on the bottom side of the movable plate 11, and the other end of the spring 12 is fixedly installed on the bottom inner wall of the movable groove 10. The movable plate 11 is fixedly connected to the bendable metal plate 13, which is convenient for realizing the up and down movable adjustment of the bendable metal plate 13; contact pressure sensors 14 are arranged in the plurality of movable grooves 10, a plurality of sound and light alarms 15 are respectively fixedly installed on the standard section body 1 of the tower crane, and a control box 16 is fixedly installed on the standard section body 1 of the tower crane.

[0022] Furthermore, a plurality of side holes 6 are respectively located at the four corners of the bottom side of the tower crane standard section body 1 , and the plurality of side holes 6 are respectively connected to the corresponding slots 4 .

[0023] Furthermore, the bendable metal plate 13 is located below the bolt 8, and a gap is provided between the bendable metal plate 13 and the bolt 8. When the bolt 8 and the nut 9 become detached due to looseness, the bolt 8 falls onto the bendable metal plate 13, so that the bendable metal plate 13 drives the movable plate 11 to slide downward in the movable groove 10.

[0024] Furthermore, the contact pressure sensor 14 is located in the spring 12, a contact point is provided at the top of the contact pressure sensor 14, and a gap is provided between the contact point and the movable plate 11. When the bottom side of the movable plate 11 abuts against the contact point at the top of the contact pressure sensor 14, the contact pressure sensor 14 detects that the movable plate 11 generates a downward force.

[0025] Furthermore, multiple contact pressure sensors 14 are electrically connected to the control box 16, and multiple sound and light alarms 15 are electrically connected to the control box 16. When the contact pressure sensor 14 detects that the movable plate 11 has generated a downward force, the contact pressure sensor 14 transmits an electrical signal to the control box 16, and the control box 16 transmits the signal to the corresponding sound and light alarm 15, so that the sound and light alarm 15 located above the corresponding pin shaft body 2 is turned on, providing an alarm function.

[0026] During use: after the multiple legs 3 at the top of the tower crane standard section body 1 are respectively inserted into the slots 4 at the bottom end of another tower crane standard section body 1, the multiple pin shaft bodies 2 are respectively inserted into the corresponding sockets 5 and side holes 6, and then the bolts 8 are inserted into the pin shaft holes 7 at one end of the pin shaft body 2 in turn, and the nuts 9 are threadedly installed on the bolts 8 to limit the pin shaft body 2 and prevent the pin shaft body 2 from detaching. Afterwards, the bendable metal plate 13 is moved until it is horizontal so that the bendable metal plate 13 is located below the bolt 8. When the bolt 8 and the nut 9 are detached due to looseness, the bolt 8 falls onto the bendable metal plate 13, so that the bendable metal plate 13 drives the movable plate 11 to slide downward in the movable groove 10. , so that the spring 12 is subjected to force and deformed and compressed. When the bottom side of the movable plate 11 is against the contact point at the top of the contact pressure sensor 14, the contact pressure sensor 14 detects that the movable plate 11 has generated a downward force. The contact pressure sensor 14 transmits an electrical signal to the control box 16, and the control box 16 transmits the signal to the corresponding sound and light alarm 15, so that the sound and light alarm 15 located above the corresponding pin shaft body 2 is turned on, providing an alarm function, which is convenient for personnel to promptly discover the risk that the corresponding pin shaft body 2 may be detached, and take timely measures to tighten the bolts 8 and nuts 9, thereby ensuring the stability of the connection and installation between the standard section bodies 1 of the tower crane, and reducing the occurrence of tilting and collapse of the tower crane body.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pin connection alarm device applicable to a tower crane standard section, comprising a tower crane standard section body (1) and a pin body (2), characterized in that: The top of the tower crane standard section body (1) is respectively provided with a plurality of legs (3), the bottom of the tower crane standard section body (1) is respectively provided with a plurality of slots (4), the plurality of legs (3) are respectively provided with insertion holes (5), the tower crane standard section body (1) is respectively provided with a plurality of side holes (6), the plurality of legs (3) on the corresponding tower crane standard section body (1) are respectively inserted into the corresponding slots (4) at the bottom end of another tower crane standard section body (1), and the plurality of pin shaft bodies (2) are respectively inserted into the corresponding insertion holes (5) and the side holes (6). The pin shaft body (2) is provided with a pin shaft hole (7), a fastener mechanism is arranged in the pin shaft hole (7), a plurality of movable grooves (10) are respectively arranged in the tower crane standard section body (1), a bendable metal plate (13) is installed in the movable groove (10) through an elastic force adjustment mechanism, a contact pressure sensor (14) is arranged in each of the plurality of movable grooves (10), a plurality of sound and light alarms (15) are respectively fixedly installed on the tower crane standard section body (1), and a control box (16) is fixedly installed on the tower crane standard section body (1).

2. The standard pin connection alarm device for tower cranes according to claim 1 is characterized in that: The plurality of side holes (6) are respectively located at the four corners of the bottom side of the tower crane standard section body (1), and the plurality of side holes (6) are respectively connected to the corresponding slots (4).

3. The standard pin connection alarm device for tower cranes according to claim 1 is characterized in that: The fastener mechanism comprises a bolt (8) and a nut (9); the bolt (8) is inserted into the pin shaft hole (7), and the nut (9) is threadedly mounted on the bolt (8).

4. The standard pin connection alarm device for tower cranes according to claim 1 is characterized in that: The elastic force adjustment mechanism comprises a movable plate (11) and a spring (12); the movable plate (11) is movably mounted in the movable groove (10); one end of the spring (12) is fixedly mounted on the bottom side of the movable plate (11); the other end of the spring (12) is fixedly mounted on the inner wall of the bottom side of the movable groove (10); and the movable plate (11) is fixedly connected to the bendable metal plate (13).

5. The standard pin connection alarm device for tower cranes according to claim 3 is characterized in that: The bendable metal plate (13) is located below the bolt (8), and a gap is provided between the bendable metal plate (13) and the bolt (8).

6. The standard pin connection alarm device for tower cranes according to claim 4 is characterized in that: The contact pressure sensor (14) is located in the spring (12); a contact point is provided at the top of the contact pressure sensor (14); and a gap is provided between the contact point and the movable plate (11).

7. The standard pin connection alarm device for tower cranes according to claim 1 is characterized in that: The plurality of contact pressure sensors (14) are electrically connected to the control box (16), and the plurality of sound and light alarms (15) are electrically connected to the control box (16).

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