Horizontal anchoring device of hand-operated crane

Abstract

The utility model relates to a horizontal anchoring device of a hand-operated crane in the technical field of cranes. The horizontal anchoring device comprises an anchoring plate, a mounting bracket and a limit switch, the anchoring plate is fixedly arranged on the ground rail, and an anchoring hole is formed in the anchoring plate; the mounting bracket is fixedly connected to the crane; the mounting bracket is provided with a telescopic part of which the telescopic part can be arranged in the anchoring hole in a penetrating manner; the limiting switch is arranged at the position, corresponding to the telescopic part of the telescopic piece, of the mounting bracket and is in signal connection with the crane; the limiting switch and the telescopic piece are correspondingly located on the two sides of the anchoring plate respectively. Due to the arrangement of the limit switch, the limit switch can be extruded after the telescopic part of the telescopic piece extends and penetrates through the anchoring hole, the limit switch transmits a signal to a crane control system, at the moment, a crane cart cannot walk, and the technical problem that in the prior art, anchoring is not relieved, so that the crane cart runs is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, in particular to a horizontal anchoring device for a hand-cranked crane. Background Art

[0002] Cranes in open-air environments are subject to wind loads. In order to prevent cranes operating outdoors on rails from being blown by the wind when not in operation, anchoring devices are usually used.

[0003] Existing Chinese patent publication number CN102367157A discloses a crane anchoring device, specifically comprising a bracket, a screw shaft, an internally threaded sleeve, and an anchoring seat. The bracket is fixedly connected to the crane, the screw shaft is rotatably but not axially movable on the bracket, the internally threaded sleeve is screwed onto the screw shaft and is axially movable but not rotatably disposed on the bracket, and the anchoring seat is provided with an anchoring hole that engages with the outer surface of the internally threaded sleeve. This anchoring device utilizes a horizontal anchoring structure, which, while convenient for operation, still has the following drawbacks: 1. Due to operational errors in the crane trolley, it is difficult to park the crane in one go so that the internally threaded sleeve and the anchoring hole are coaxially aligned, requiring multiple adjustments to the crane trolley's position to ensure that the outer end of the internally threaded sleeve smoothly passes through the anchoring hole; 2. If the anchoring is forgotten and the crane trolley is allowed to operate, the anchoring device may be damaged.

[0004] Therefore, we have designed a hand-cranked crane horizontal anchoring device to solve at least one of the above-mentioned defects. Utility Model Content

[0005] In order to overcome the deficiencies in the background technology, the utility model discloses a horizontal anchoring device for a hand-cranked crane.

[0006] In order to achieve the above-mentioned purpose of the utility model, the utility model adopts the following technical solutions:

[0007] A horizontal anchoring device for a hand-cranked crane, comprising:

[0008] An anchor plate is fixed to the ground rail, and the anchor plate is provided with an anchor hole;

[0009] A mounting bracket fixedly connected to the crane, the mounting bracket being provided with a telescopic member having a telescopic portion capable of being inserted into the anchor hole;

[0010] A limit switch is provided at a position of the mounting bracket corresponding to the telescopic portion of the telescopic member, and a signal is connected to the crane;

[0011] Wherein, the limit switch and the telescopic member are respectively located on both sides of the anchor plate.

[0012] Preferably, the telescopic member comprises:

[0013] screw rod, rotationally connected to the mounting bracket;

[0014] hollow moving shaft, slidingly connected to the mounting bracket, the hollow moving shaft having a threaded sleeve coaxially fitted to the screw rod at one end thereof;

[0015] drive member, provided at one end of the screw rod away from the hollow moving shaft, so as to drive the screw rod to rotate.

[0016] Preferably, the anchoring hole is an elongated hole arranged along the direction of movement of the trolley of the crane.

[0017] Preferably, the tip portion is provided at the outer end of the telescopic portion of the telescopic member.

[0018] Preferably, the hollow moving shaft is provided with a fitting portion at one end thereof away from the screw rod, the fitting portion having the tip portion at the outer end thereof.

[0019] Preferably, the drive member is a hand wheel coaxially arranged at the end of the screw rod.

[0020] With the technical solutions as described above, the utility model has the following beneficial effects:

[0021] 1. The limit switch is arranged to be pressed by the telescopic portion of the telescopic member after the telescopic portion is extended through the anchoring hole, and the limit switch transmits a signal to the control system of the crane, so that the trolley of the crane cannot move, thereby solving the technical problem of the trolley of the crane moving without being unanchored in the prior art.

[0022] 2. The anchoring hole is an elongated hole, which can compensate for the movement error of the trolley of the crane through the gap between the elongated hole and the telescopic portion of the telescopic member along the length direction of the ground rail, thereby reducing or eliminating the function of adjusting the position of the trolley of the crane.

[0023] 3. The fitting portion and the tip portion are arranged to easily pass through the anchoring hole through the tip portion and to be fitted with the anchoring hole through the fitting portion, thereby solving the technical problem of the trolley of the crane still having a movement gap after being anchored. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a structural schematic view of the utility model;

[0025] Figure 2 is a structural schematic view of the utility model;

[0026] Figure 3 is a structural schematic view of the utility model.

[0027] In the figure: 1, anchor plate; 11, anchor hole; 2, mounting bracket; 3, telescopic part; 31, screw rod; 32, hollow moving shaft; 33, threaded sleeve; 34, driving part; 35, tip part; 36, matching part; 4, limit switch. DETAILED DESCRIPTION

[0028] The utility model can be explained in detail through the following examples, the purpose of the utility model is disclosed to protect all technical improvements within the scope of the utility model, in the description of the utility model, it needs to be understood that if the orientation or position relation indicated by the terms "upper", "lower", "front", "rear", "left", "right" and the like, only corresponds to the drawing of the present application, in order to facilitate the description of the utility model, it needs to be understood that if the orientation or position relation indicated by the terms "end", "side", "end part", "side part", "transverse", "longitudinal" and the like, only corresponds to the length and width of the corresponding component, that is, "end part" indicates the head-tail area of the length direction of the corresponding component, and "side part" indicates the head-tail area of the width direction of the corresponding component, in order to facilitate the description of the utility model, but not to indicate or imply that the device or element indicated must have a particular orientation.

[0029] Embodiment one, combined with the attached Figure 1 And 3 A hand-operated crane horizontal anchoring device, comprising:

[0030] The anchor plate 1 is fixed to the ground rail, and the anchor plate 1 is provided with an anchor hole 11;

[0031] According to the need, the anchor plate 1 can be installed on the foundation through anchor bolts, or can be connected to the steel beam at the bottom of the ground rail through welding.

[0032] The mounting bracket 2 is fixed to the crane, and the mounting bracket 2 is provided with a telescopic part capable of being arranged in the anchor hole 11; in an embodiment, the telescopic part 3 includes a screw rod 31, a hollow moving shaft 32 and a driving part 34: the screw rod 31 is rotatably connected to the mounting bracket 2; the hollow moving shaft 32 is slidably connected to the mounting bracket 2, and the inner cavity of the hollow moving shaft 32 is provided with a threaded sleeve 33 coaxially matched with one end of the screw rod 31; the driving part 34 is arranged at one end of the screw rod 31 away from the hollow moving shaft 32, so as to drive the screw rod 31 to rotate. According to the need, the driving part 34 can be a hand wheel coaxially arranged at the end of the screw rod 31, or can be a motor arranged on the mounting bracket 2. Further, the screw rod 31 is arranged in the mounting bracket 2 through a bearing, a bearing seat and a bearing end cover.

[0033] According to the need, the mounting bracket 2 can be fixed to the crane steel structure in the form of bolts or welding.

[0034] The limit switch 4 is arranged at the position corresponding to the telescopic part of the telescopic member 3 of the mounting bracket 2, and is signal-connected to the crane; the limit switch 4 and the telescopic member 3 are respectively arranged at the two sides of the anchoring plate 1.

[0035] Specifically, the limit switch 4 is signal-connected to the crane control system.

[0036] According to the need, the limit switch 4 is a press type limit switch 4, that is, the limit switch 4 can be extruded by the elongation of the telescopic part of the telescopic member 3, so that the limit switch 4 works, and then the crane control system cannot control the walking of the crane trolley.

[0037] The arrangement of the limit switch 4 can extrude the limit switch 4 after the telescopic part of the telescopic member 3 elongates through the anchoring hole 11, and the limit switch 4 transmits signals to the crane control system, so that the crane trolley cannot walk at this time, thereby solving the technical problem that the crane trolley cannot run without removing the anchoring in the prior art.

[0038] Embodiment two, combined with the attached Figure 2-3 A hand-operated crane horizontal anchoring device, based on embodiment one, the anchoring hole 11 is a long hole arranged along the running direction of the crane trolley; in this way, the function of compensating for the running error of the crane trolley along the length direction of the ground rail through the gap corresponding to the telescopic part of the telescopic member 3 and the long hole can be achieved, and the function of adjusting the position of the crane trolley can be reduced or eliminated.

[0039] According to the need, the end of the hollow moving shaft 32 away from the screw rod 31 is provided with a matching part 36 capable of being fitted with the anchoring hole 11, and the outer end of the matching part 36 has a pointed part 35; that is, the technical problem that there is still a movement gap after the crane is anchored can be solved by fitting the matching part 36 with the anchoring hole 11.

[0040] The part not described in detail in the utility model is the prior art, and for those skilled in the art, it is obvious that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model; therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and all changes falling within the meaning and scope of equivalent elements should be included in the utility model.

Claims

1. A horizontal anchoring device for a hand-cranked crane, characterized in that: include: An anchor plate (1) is fixed to the ground rail, and the anchor plate (1) is provided with an anchor hole (11); A mounting bracket (2) is fixedly connected to the crane, and the mounting bracket (2) is provided with a telescopic member (3) whose telescopic portion can be inserted into the anchor hole (11); A limit switch (4) is provided at a position of the mounting bracket (2) corresponding to the telescopic portion of the telescopic member (3), and a signal is connected to the crane; The limit switch (4) and the telescopic member (3) are respectively located on both sides of the anchor plate (1).

2. The horizontal anchoring device for a hand-cranked crane according to claim 1, characterized in that: The telescopic member (3) comprises: A screw rod (31) is rotatably connected to the mounting bracket (2); A hollow movable shaft (32) is slidably connected to the mounting bracket (2), and an end portion of the inner cavity of the hollow movable shaft (32) corresponding to the screw rod (31) is provided with a threaded sleeve (33) coaxially matched with the shaft of the screw rod (31); The driving member (34) is provided at one end of the screw rod (31) away from the hollow movable shaft (32) so as to drive the screw rod (31) to rotate.

3. The horizontal anchoring device for a hand-cranked crane according to claim 2, characterized in that: The anchoring hole (11) is a long hole arranged along the running direction of the crane trolley.

4. The horizontal anchoring device for a hand-cranked crane according to claim 3, characterized in that: The outer end of the telescopic portion of the telescopic member (3) has a tip portion (35) that is convenient for passing through the anchoring hole (11).

5. The horizontal anchoring device for a hand-cranked crane according to claim 4, characterized in that: An end of the hollow movable shaft (32) facing away from the screw rod (31) is provided with a matching portion (36) capable of matching with the anchor hole (11), and the outer end of the matching portion (36) has the tip portion (35).

6. The horizontal anchoring device for a hand-cranked crane according to claim 2, characterized in that: The driving member (34) is a handwheel coaxially arranged at the end of the screw rod (31).

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