Elevator lock bolt

Abstract

The utility model discloses an elevator check bolt which comprises an elevator accessory, a connecting hole is formed in the center of the inner end face of the elevator accessory, and four sets of guide holes are formed in the inner end face of the elevator accessory at equal intervals with the connecting hole as the center. By arranging the locking device and the alignment device, during loosening installation, the fixing bolt can limit elevator accessories in a region where the elevator accessories need to be installed through the nut shell and the locking device, meanwhile, when the four sets of inner hexagonal rotating plates are installed, the four sets of inner hexagonal rotating plates can be slidably aligned in the limiting clamping grooves through the limiting clamping plates, and therefore the elevator accessories can be installed conveniently. And when the bottom of the limiting clamping plate is attached to the bottom of the limiting clamping groove, installation is completed, meanwhile, the four sets of inner hexagonal rotating plates are rotated, secondary limiting is conducted on the limiting clamping plate and the interior of the limiting clamping groove, the anti-loosening performance after follow-up installation is effectively improved, and the stability of follow-up elevator accessory installation limiting is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bolt equipment, in particular to an elevator anti-loosening bolt. Background Art

[0002] When assembling an elevator, loosening bolts is an essential connector, which can quickly limit and connect various components, thereby improving the stability of subsequent elevator assembly.

[0003] As disclosed in the utility model patent with publication number: CN218844799U, an anti-loosening bolt belongs to the technical field of bolts. The utility model includes a screw, a boss, a screwing end and a threaded area. The upper end of the screw is provided with a boss, and the boss is fixed to the lower end of the screwing end. The end surface of the screw is provided with a threaded area; it also includes: a type-one nut, screwed on the threaded area on the screw, a type-two nut is provided on the side of the type-one nut, and the type-two nut is also screwed on the threaded area on the screw, and the opposing surfaces of the type-one nut and the type-two nut are provided with meshing convex teeth. The anti-loosening bolt can remove the tooth pad that cooperates with the nut when in use, and use the meshing convex teeth on the end face of the nut to replace the tooth pad, thereby improving the overall anti-loosening effect and reducing manufacturing costs.

[0004] Although the above bolts have a certain degree of looseness, they are still insufficient in terms of stability in limiting the locking workpiece, thereby reducing the overall loosening performance of the rear bolts. Therefore, an elevator anti-loosening bolt is urgently needed to solve the above problems. Utility Model Content

[0005] The utility model aims to provide an elevator anti-loosening bolt to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an elevator anti-loosening bolt, comprising a fixing bolt and an elevator accessory, a connecting hole is opened at the center of the inner end surface of the elevator accessory, and four groups of guide holes are opened at equal distances on the inner end surface of the elevator accessory with the connecting hole as the center, a locking device is arranged on the side end surface of the fixing bolt near the top, and a positioning device is threadedly connected to the bottom end surface of the fixing bolt.

[0007] Preferably, the locking device includes a fixed chuck, the inner end surface of the fixed chuck is provided with four groups of connecting grooves at equal distances, and the inner end surface of the connecting groove is rotatably clamped with an internal hexagonal rotating plate, the outer end surface of the internal hexagonal rotating plate is provided with a limited rotation shaft near the top, and a limited clamping plate is fixedly provided at the center of the lower end surface of the internal hexagonal rotating plate.

[0008] Preferably, the alignment device comprises a nut shell, an upper end surface of the nut shell is provided with anti-slip pads at equal distances, and a limiting slot is provided on the upper end surface of the nut shell.

[0009] Preferably, the anti-skid pad is connected to the bottom of the elevator accessory by extrusion and fitting, and the anti-skid pad can effectively increase the friction between the nut housing and the bottom of the elevator accessory, thereby improving the locking stability.

[0010] Preferably, the limit card plate is fitly connected to the inside of the limit card slot, and the opening width of the limit card slot is fitly connected to the side wall of the hexagonal rotating plate. The bottom of the limit card plate can be limit-connected inside the limit card slot to prevent subsequent axial displacement of the limit card slot, thereby improving the locking stability.

[0011] Preferably, the fixing bolt is threadedly connected to the interior of the nut housing, and the hexagonal rotating plate passes through the guide hole to the bottom of the elevator accessory. The four groups of guide holes can provide sufficient guiding space for the hexagonal rotating plate and the limiting clamping plate when moving downward, thereby improving the accuracy of subsequent installation and alignment.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model provides a locking device and a positioning device. When loosening the installation, the fixing bolt can limit the elevator accessories to the required installation area through the nut housing and the locking device. At the same time, the four groups of hexagonal rotating plates can be slid and positioned inside the limiting card slot through the limiting card plate during installation. When the bottom of the limiting card plate is in contact with the bottom of the limiting card slot, the installation is completed. At the same time, the four groups of hexagonal rotating plates are rotated to make the limiting card plate and the inside of the limiting card slot perform secondary positioning, which effectively improves the anti-loosening performance after subsequent installation and improves the stability of the subsequent installation positioning of the elevator accessories. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a disassembled diagram of the main body of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the main body of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the locking device of the utility model;

[0017] Figure 4 It is a structural schematic diagram of the alignment device of the utility model.

[0018] In the figure: 1-fixing bolt, 2-locking device, 3-elevator accessories, 4-alignment device, 5-guide hole, 6-connecting hole, 21-hexagonal rotating plate, 22-limiting rotating shaft, 23-limiting clamping plate, 24-fixing clamping disc, 25-connecting rotating groove, 41-nut housing, 42-limiting clamping slot, 43-anti-slip pad. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-4 The utility model provides an embodiment: an elevator anti-loosening bolt, including a fixing bolt 1 and an elevator accessory 3, a connecting hole 6 is opened at the center of the inner end surface of the elevator accessory 3, and four groups of guide holes 5 are opened at equal distances on the inner end surface of the elevator accessory 3 with the connecting hole 6 as the center, a locking device 2 is arranged near the top of the side end surface of the fixing bolt 1, and a positioning device 4 is threadedly connected to the bottom end surface of the fixing bolt 1.

[0021] The locking device 2 includes a fixed chuck 24, and four groups of connecting grooves 25 are equidistantly provided on the inner end surface of the fixed chuck 24, and a hexagonal rotating plate 21 is rotatably connected to the inner end surface of the connecting groove 25, a limited rotation shaft 22 is provided near the top of the outer end surface of the hexagonal rotating plate 21, and a limited clamping plate 23 is fixedly provided at the center of the lower end surface of the hexagonal rotating plate 21.

[0022] The alignment device 4 comprises a nut housing 41 , an upper end surface of the nut housing 41 is provided with anti-skid pads 43 at equal intervals, and a limiting slot 42 is provided on the upper end surface of the nut housing 41 .

[0023] The anti-skid pad 43 is connected to the bottom of the elevator accessory 3 by extrusion and fitting, and the anti-skid pad 43 can effectively increase the friction force of the nut housing 41 limiting the bottom of the elevator accessory 3, thereby improving the locking stability.

[0024] The limiting card plate 23 is fitted and connected to the inside of the limiting card slot 42, and the opening width of the limiting card slot 42 is fitted and connected to the side wall of the hexagonal rotating plate 21. The bottom of the limiting card plate 23 can be limitedly connected to the inside of the limiting card slot 42 to prevent the subsequent axial displacement of the limiting card slot 42 and improve the locking stability.

[0025] The fixing bolt 1 is threadedly connected to the inside of the nut housing 41, and the hexagonal rotating plate 21 passes through the guide hole 5 to the bottom of the elevator accessory 3. The four groups of guide holes 5 can provide sufficient guiding space for the hexagonal rotating plate 21 and the limiting clamping plate 23 when moving downward, thereby improving the accuracy of subsequent installation and alignment.

[0026] Working principle: Before loosening the installation, the user can position the elevator accessory 3 to be installed to a suitable area, and then pass the fixing bolt 1 and the four sets of hexagonal rotating plates 21 through the connecting hole 6 and the guide hole 5 to the inside of the nut housing 41. After the positioning is completed, the fixing bolt 1 can be rotated by an external tool. At this time, the fixing bolt 1 can be connected to the nut housing 41 through a thread, and then the elevator accessory 3 can be gradually locked. When installing the four sets of hexagonal rotating plates 21, they can be slid into the limiting card slot 42 through the limiting card plate 23 until the bottom of the limiting card plate 23 is in contact with the bottom of the limiting card slot 42. The installation is completed. At this time, the four sets of hexagonal rotating plates 21 are rotated so that the limiting card plate 23 is laterally limited inside the limiting card slot 42, further improving the loosening performance after installation.

[0027] Although the 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. An elevator anti-loosening bolt, comprising a fixing bolt (1) and an elevator accessory (3), wherein a connecting hole (6) is provided at the center of the inner end surface of the elevator accessory (3), and four groups of guide holes (5) are provided at equal distances from the inner end surface of the elevator accessory (3) with the connecting hole (6) as the center, characterized in that: A locking device (2) is provided on the side end surface of the fixing bolt (1) near the top, and a positioning device (4) is threadedly connected to the bottom end surface of the fixing bolt (1).

2. The elevator anti-loosening bolt according to claim 1, characterized in that: The locking device (2) comprises a fixed chuck (24), the inner end surface of the fixed chuck (24) is provided with four groups of connecting grooves (25) at equal intervals, and a hexagonal rotating plate (21) is rotatably connected to the inner end surface of the connecting groove (25), a limited rotation shaft (22) is provided near the top of the outer end surface of the hexagonal rotating plate (21), and a limited clamping plate (23) is fixedly provided at the center of the lower end surface of the hexagonal rotating plate (21).

3. The elevator anti-loosening bolt according to claim 2, characterized in that: The alignment device (4) comprises a nut housing (41), the upper end surface of the nut housing (41) is provided with anti-slip pads (43) at equal distances, and a limiting slot (42) is provided on the upper end surface of the nut housing (41).

4. The elevator anti-loosening bolt according to claim 3, characterized in that: The anti-slip pad (43) is connected to the bottom of the elevator accessory (3) by extrusion and fitting.

5. The elevator anti-loosening bolt according to claim 3, characterized in that: The limiting clamping plate (23) is fitted and connected to the inside of the limiting clamping slot (42), and the opening width of the limiting clamping slot (42) is fitted and connected to the side wall of the hexagonal rotating plate (21).

6. The elevator anti-loosening bolt according to claim 3, characterized in that: The fixing bolt (1) is threadedly connected to the interior of the nut housing (41), and the hexagonal rotating plate (21) passes through the guide hole (5) to the bottom of the elevator accessory (3).

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