Elevator safety bolt assembly

Abstract

An elevator safety plug pin assembly comprises a plug pin seat and a plug pin arranged on the plug pin seat in a sliding mode, the plug pin is a flat plate, the flat plate is provided with a retaining component which is inserted into the plug pin seat when the flat plate is correspondingly inserted into a plug pin hole, and the flat plate is provided with a penetrating hole for the retaining component to penetrate through. According to the utility model, the bolt is arranged to be the flat plate to replace a circular shaft type bolt in the prior art, and meanwhile, the flat plate is provided with the retaining component which is inserted into the bolt seat when the flat plate is correspondingly inserted into the bolt hole, so that the bolt is limited to move on the bolt seat, and compared with the prior art, the bolt is prevented from retreating from the bolt hole due to accidental touch action.

Description

TECHNICAL FIELD

[0001] The utility model relates to an elevator safety bolt assembly and belongs to the field of elevator safety accessories. BACKGROUND

[0002] Some working conditions in the elevator, such as elevator maintenance or repair, often require the car to be fixed to prevent accidental movement of the car. A bolt plate is usually installed on the guide rail, and the bolt plate has a bolt hole. A bolt assembly is installed on the car top beam, and the bolt assembly generally includes a bolt seat and a bolt. The bolt can move on the bolt seat. By inserting the bolt into the bolt hole, the car is fixed.

[0003] Currently, the bolt is usually a shaft part. The bolt has a bending part or is connected to a part as a bending part through bending, which facilitates workers to insert the bolt into the bolt hole. For example, the bolt in the authorized announcement CN 207030661 U.

[0004] However, the elevator maintenance personnel may accidentally touch the bending part during maintenance, causing the entire bolt to rotate and eventually bringing the bolt out of the bolt hole, i.e., the bolt has a certain safety hazard of withdrawing from the bolt hole. SUMMARY

[0005] To overcome the shortcomings of the prior art, the present application provides an elevator safety bolt assembly to solve the problem of the bolt withdrawing from the bolt hole.

[0006] An elevator safety bolt assembly includes a bolt seat and a bolt slidingly arranged on the bolt seat. The bolt is a flat plate. The flat plate is provided with a retreat prevention part that is inserted into the bolt seat when the flat plate is inserted into the bolt hole. The flat plate is provided with a through hole through which the retreat prevention part passes.

[0007] Preferably, the through hole is a light hole, and the flat plate is fixedly provided with a connecting nut coaxial with the light hole. The retreat prevention part is a threaded part screw-connected with the connecting nut.

[0008] Preferably, the through hole is a threaded hole, and the retreat prevention part is screw-connected with the threaded hole.

[0009] Preferably, the flat plate is a laser part, and the light hole is a laser hole.

[0010] Preferably, the bolt seat includes a bolt seat plate and a guide rail plate arranged on the bolt seat plate. The guide rail plate includes a guide slot for limiting the bolt.

[0011] Preferably, the latch seat plate is a bent piece comprising two elevator connecting portions, a latch connecting portion arranged between the two elevator connecting portions and staggered with the two elevator connecting portions, and an intermediate connecting portion arranged on each side of the latch connecting portion and connected with the corresponding side elevator connecting portion.

[0012] Preferably, the guide rail plate comprises a welding plate part I connected with the latch connecting portion, and a welding plate part II arranged on each side of the welding plate part I and connected with the elevator connecting portion and the intermediate connecting portion located on the same side of the welding plate part I.

[0013] Preferably, the latch seat is provided with a retreat-preventing hole for inserting the retreat-preventing component.

[0014] In summary, the utility model has the following beneficial effects:

[0015] 1: The utility model discloses a flat plate is arranged as the latch, replaces the round shaft latch in the prior art, and simultaneously, the flat plate is provided with a retreat-preventing component inserted on the latch seat when the flat plate is inserted into the latch hole, thereby limiting the movement of the latch on the latch seat, and compared with the prior art, the latch is prevented from being withdrawn from the latch hole due to accidental touch.

[0016] 2: The utility model discloses that the flat plate used as the latch is a laser piece, and the perforation on the flat plate is a light hole, and the light hole is a laser hole, that is, the flat plate and the hole thereon are processed by the same equipment, the number of equipment is small, other equipment is not needed, and the cost of equipment can be lower.

[0017] 3: The utility model discloses that the latch seat in the latch assembly is composed of a latch seat plate, a guide rail plate and a plurality of simple components, simultaneously, the number of component types is small, and there are only two types of the latch seat plate and the guide rail plate, so that the manufacturing difficulty of the latch assembly can be simplified, and the manufacturing complexity and cost increase caused by too many types of components can be prevented. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic view of an elevator safety latch assembly.

[0019] Figure 2 It is a structural schematic view of an elevator safety latch assembly. Figure 1 It is a sectional view at A-A.

[0020] Figure 3 It is a side view of the latch seat.

[0021] Figure 4 It is a structural schematic view of the latch seat plate from a top view.

[0022] Figure 5 It is a structural schematic view of the guide rail plate.

[0023] Figure 6Structure diagram of the latch. DETAILED DESCRIPTION

[0024] The utility model will be further described through specific embodiments in combination with the drawings.

[0025] Embodiment:

[0026] As Figures 1-6 shown, an elevator safety latch assembly comprises a latch seat 1 and a latch 2 slidingly arranged on the latch seat 1, the latch seat 1 is used for fixedly connecting on a car or a car frame of an elevator, and the latch 2 is used for being inserted into a latch hole of a latch plate pre-installed on an elevator guide rail.

[0027] Different from the prior art, the latch 2 is a flat plate, and a movable retreat-preventing component 3 is arranged on the flat plate, specifically, a connecting nut 4 is fixedly arranged on the flat plate, the retreat-preventing component 3 adopts a threaded part screw-connected with the connecting nut 4, and the threaded part specifically adopts a screw rod, and the retreat-preventing component 3 can realize linear movement through its threaded pair, when the flat plate is inserted into the latch hole, the retreat-preventing component 3 is inserted into the latch seat 1 by screwing, and the flat plate and the latch seat 1 are respectively provided with a through hole 21 and a retreat-preventing hole 100 for the retreat-preventing component 3 to pass through, of course, in other embodiments, the connecting nut 4 is cancelled, the through hole 21 adopts a threaded hole, and the retreat-preventing component 3 is arranged on the flat plate by screwing with the threaded hole, and the retreat-preventing component 3 can also be inserted into the latch seat 1 by screwing.

[0028] The latch assembly of the embodiment utilizes the retreat-preventing component 3 inserted into the latch seat 1 to limit the movement of the latch 2 on the latch seat 1, effectively prevents the latch 2 from withdrawing from the latch hole, and simultaneously sets the latch 2 as a flat plate, which is very easy to realize fixation and clamping when the through hole 21 is arranged on the surface of the latch 2, and the through hole 21 arranged on the relatively large flat plate has relatively small influence on the structural strength of the flat plate, while in the prior art, the latch 2 is a shaft standard part, and such shaft latch is no longer suitable for punching, because not only a specific device such as a three-jaw chuck is needed for clamping, but also the clamping tool is large and complex, and the hole arranged on the circumferential surface of the shaft part occupies a large proportion and has relatively large influence on the strength of the shaft part.

[0029] The thickness of the flat plate is equal to the diameter of the replaced shaft latch in design, and is usually 10-20 mm, the flat plate is a laser part processed by laser equipment, and the light hole is also a laser hole processed by laser equipment, that is, the flat plate itself and the hole thereon are processed by the same equipment, the number of devices is small, and other devices are not needed, so the cost of the equipment can be lower.

[0030] The latch seat 1 specifically comprises a latch seat plate 11, a guide rail plate 12 arranged on the latch seat plate 11, in the embodiment, the guide rail plate 12 is welded on the latch seat plate 11, the number of the guide rail plate 12 is two, the guide rail plates 12 are parallel to each other, the guide rail plates 12 are provided with guide clamping grooves 120, the latch 2 is assembled in the guide clamping grooves 120 of the two guide rail plates 12 at the same time, so as to be limited on the two guide rail plates 12, the latch seat 1 is composed of a plurality of simple components, at the same time, the number of component types is small, only two types of the latch seat plate 11 and the guide rail plate 12, which can not only simplify the manufacturing difficulty of the latch assembly, but also prevent too many types of components from causing manufacturing complexity and cost increase.

[0031] In the embodiment, the latch seat plate 11 is specifically a bent part, the thickness of the plate is less than 10 mm, which is convenient for bending, the latch seat plate 11 comprises two elevator connecting parts 111, a latch connecting part 112 arranged between the two elevator connecting parts 111 and staggered with the elevator connecting parts 111, the elevator connecting part 111 is provided with an elevator connecting hole 1111, the latch seat plate 11 can be connected to the elevator by using a fastening bolt passing through the elevator connecting hole 1111, specifically, the latch seat plate 11 can be connected to the car or the car frame of the elevator, of course, in other embodiments, the elevator connecting part 111 can also be directly welded on the car or the car frame of the elevator, the two sides of the latch connecting part 112 are respectively provided with intermediate connecting parts 113 connected with the corresponding side of the elevator connecting part 111. The guide rail plate 12 specifically comprises a welding plate part one 121 connected with the latch connecting part 112, welding plate parts two 122 arranged on both sides of the welding plate part one 121, the welding plate part two 122 is used for connecting with the elevator connecting part 111 and the intermediate connecting part 113 located on the same side of the welding plate part one 121, the welding plate part one 121 and the welding plate part two 122 are used as welding positions, the guide rail plate 12 is welded on the latch seat plate 11 through a plurality of welding plate parts, so that the guide rail plate 12 obtains better structural stability.

[0032] It is more excellent that the thickness of the guide rail plate 12 is equal to the thickness of the latch 2, so that the entire latch assembly is made of two thicknesses of plate materials as raw materials from the production and manufacturing, that is, one thickness of plate material is used to manufacture the latch seat plate 11, and another thickness of plate material is used to manufacture the guide rail plate 12 and the latch 2, so that the types of raw materials involved are less, and it is not easy to be confused and mistaken during processing.

[0033] The bolt 2 needs to be fixed in both the state of being inserted into the bolt hole and the state of not being inserted into the bolt hole to prevent the bolt 2 from moving on the bolt seat 1. The above has described the way that the bolt 2 is inserted into the bolt seat 1 by the retreat-stop part 3 when the bolt 2 is inserted into the bolt hole to limit the movement of the bolt 2 on the bolt seat 1. The following will introduce the way of preventing the bolt 2 from moving when the bolt 2 is not inserted into the bolt hole. Specifically, the bolt seat 1 is further provided with a hole 101 for the retreat-stop part 3 to insert into the bolt 2 when the bolt 2 is not inserted into the bolt hole, so as to limit the movement of the bolt 2 on the bolt seat 1.

[0034] The above embodiment only describes the preferred embodiment of the present application, and does not limit the concept and scope of the present application. Any modification and improvement of the technical solution of the present application made by those skilled in the art without departing from the design concept of the present application shall fall within the protection scope of the present application. The technical content claimed by the present application has been fully recorded in the claims.

Claims

1. An elevator safety latch assembly comprising a latch seat (1), a latch (2) slidingly arranged on the latch seat (1), characterized in that, The latch (2) is a flat plate, and a retreat-preventing component (3) is arranged on the flat plate and inserted into the latch seat (1) when the flat plate is inserted into the latch hole.

2. An elevator safety catch assembly according to claim 1, wherein, The through hole (21) is a light hole, and a connecting nut (4) coaxial with the light hole is fixed on the flat plate, and the retreat-preventing component (3) is a threaded part screw-connected with the connecting nut.

3. An elevator safety latch assembly according to claim 1, wherein, The through hole (21) is a threaded hole, and the retreat-preventing component (3) is screw-connected with the threaded hole.

4. An elevator safety latch assembly according to claim 2, wherein, The flat plate is a laser part, and the light hole is a laser hole.

5. An elevator safety latch assembly according to claim 1, wherein, The latch seat (1) comprises a latch seat plate (11) and a guide rail plate (12) arranged on the latch seat plate (11), and the guide rail plate (12) comprises a guide clamping groove (120) for limiting the latch (2).

6. An elevator safety catch assembly according to claim 5, wherein, The latch seat plate (11) is a bent part, comprising two elevator connecting parts (111), a latch connecting part (112) arranged between the two elevator connecting parts (111) and staggered with the elevator connecting parts (111), and a middle connecting part (113) arranged on each side of the latch connecting part (112) and connected with the corresponding elevator connecting part (111).

7. An elevator safety catch assembly according to claim 6, wherein, The guide rail plate (12) comprises a welding plate part one (121) connected with the latch connecting part (112), and a welding plate part two (122) arranged on both sides of the welding plate part one (121) and connected with the elevator connecting part (111) and the middle connecting part (113) located on the same side of the welding plate part one (121).

8. An elevator safety latch assembly according to claim 5, wherein, The thickness of the guide rail plate (12) is equal to the thickness of the latch (2).

9. An elevator safety catch assembly according to claim 1, wherein, The latch seat (1) is provided with a retreat-preventing hole (100) for inserting the retreat-preventing component (3).

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