Safety isolation device for hoisting equipment

Abstract

The utility model relates to the technical field of energy isolation of hoisting equipment, in particular to a safety isolation device of the hoisting equipment, which comprises a plurality of emergency stop switches, the emergency stop switches are distributed in a circular array, the number of the emergency stop switches is the same as that of mechanisms on the hoisting equipment, and the emergency stop switches are respectively connected in series into control loops of execution mechanisms. According to the utility model, by arranging a plurality of emergency stop switches which are distributed in a circular array, independent energy isolation can be carried out on mechanisms which are connected with the emergency stop switches in series on the hoisting equipment, so that accidents are prevented from frequently occurring in the processes of accident repair, emergency treatment and the like, and safety isolation protection is realized; through the arrangement of the bottom box and the cover body, an emergency stop switch which is connected into a control loop of the mechanism in series can be protected, and the situation that the mechanism stops due to non-failure caused by wrong pressing in the non-use state is reduced; in addition, in the normal operation state, the rest emergency stop switches can be sealed by the opening and closing assembly, and the situation of mistaken touch is avoided to a great extent.

Description

TECHNICAL FIELD

[0001] The utility model relates to hoisting equipment energy isolation technical field, concretely relates to a hoisting equipment safety isolation device. BACKGROUND

[0002] Essential safety refers to the safety of production equipment or production system itself through design and other means, that is, even in the case of misoperation or failure, no accident will occur.

[0003] At present, more than 90% of mechanical injury accidents in the operation area are caused by misoperation due to non-isolation of energy during operation, resulting in personal injury. Accident analysis shows that accidents occur frequently during accident repair and emergency treatment. Combined with the fact that the crane in the operation area cannot be stopped and the maintenance method of "inserting a needle into a seam", the present application proposes to design a hoisting equipment safety isolation device to solve the above problems.

[0004] The above content is only used to assist in understanding the technical solutions of the present application and does not represent the acknowledgement of the above content as the closest prior art. INVENTION CONTENTS

[0005] The utility model aims at solving the above-mentioned shortage and provides a hoisting equipment safety isolation device.

[0006] In order to solve the above technical problems, the utility model adopts the following technical scheme: a hoisting equipment safety isolation device, comprising:

[0007] The emergency stop switch is provided with a plurality of circular array distribution, and the number of mechanisms included in the hoisting equipment is the same, each emergency stop switch is respectively connected into the control loop of each actuator.

[0008] Further, the number of emergency stop switches is 6, and the 6 emergency stop switches correspond to the 6 actuators of the whole vehicle, the main hook, the auxiliary hook, the main trolley, the auxiliary trolley and the car on the hoisting equipment, and are connected into the control loop of the corresponding actuator in series.

[0009] Further, the bodies of a plurality of emergency stop switches are located at one place and in a bottom box, a cover body is adaptively arranged on the bottom box, and a circular opening is arranged through the cover body;

[0010] The opening and closing assembly is rotatably arranged on the circular opening and used for operating any one of the emergency stop switches.

[0011] Further, the opening and closing assembly comprises a movable circular plate rotatably arranged on the circular opening and a sliding groove eccentrically arranged on the movable circular plate, one end of the groove bottom of the sliding groove is provided with an operation port communicated with the inner cavity of the bottom box, and a sliding cover is slidably arranged in the sliding groove.

[0012] The sliding cover is used for covering and uncovering the operation port.

[0013] Further, the cover body is provided with identification tags corresponding to the emergency stop switches.

[0014] Further, the circumferential surface of the movable circular plate is provided with an annular guide rail groove, and the side of the circular port is provided with an annular guide rail matched with the annular guide rail groove.

[0015] Further, the annular guide rail is slotted and provided with semicircular protrusions corresponding to the emergency stop switches, the inner end of the semicircular protrusion is fixed with a spring, and the end of the sliding cover is provided with a semicircular groove matched with the semicircular protrusion, when the semicircular groove is aligned with the semicircular protrusion, the spring can push the semicircular protrusion into the semicircular groove.

[0016] Further, the operation port is provided with a through port matched with the rotation of the annular guide rail.

[0017] Further, the wiring terminal is arranged on the bottom box, one end of the wiring terminal is connected with the wires of the emergency stop switches, and the other end is connected with the control loop of the corresponding executing mechanism.

[0018] Compared with the prior art, the utility model has the beneficial effects that: the utility model discloses a plurality of circular array distribution's emergency stop switch, can carry out the energy isolation of the mechanism of the emergency stop switch on the hoisting equipment and the stringing connection, avoids the high accident in the process such as accident rescue, emergency treatment, has the safety isolation protection, and through the bottom box and the cover body arranged, can protect the emergency stop switch in the stringing mechanism control loop, reduces the non-fault shutdown situation of the mechanism in the non-use state, effectively prevents the outside dust from entering the cavity and affecting the normal use of the emergency stop switch, and through the opening and closing assembly arranged, under the normal operation state, the remaining emergency stop switch will be sealed by the opening and closing assembly, greatly avoids the occurrence of the misoperation. BRIEF DESCRIPTION OF DRAWINGS

[0019] The drawings accompanying the specification provide further understanding of the utility model, and the schematic embodiment of the utility model and the explanation thereof are used to explain the utility model, and do not constitute improper limitation to the utility model. In the drawings:

[0020] Figure 1 It is the perspective view of the whole of an embodiment of the utility model;

[0021] Figure 2 It is the perspective view of the whole of an embodiment of the utility model;

[0022] Figure 3 It is a structure schematic view of one visual angle of the sliding cover moving in the sliding groove in an embodiment of the utility model;

[0023] Figure 4 It is a structure schematic view of another visual angle of the sliding cover moving in the sliding groove in an embodiment of the utility model.

[0024] In the figure: 1, emergency stop switch;2, bottom box;3, cover body;4, opening and closing assembly;41, movable round plate;411, annular guide rail groove;42, sliding groove;43, operation port;431, through port;44, sliding cover;441, semicircular groove;5, identification card;6, annular guide rail;7, semicircular convex block;8, terminal. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely below, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. In the case of no conflict, the embodiments in the application and the features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0026] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, …), the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain posture, if the certain posture changes, the directional indications also change accordingly.

[0027] As shown in Figures 1-4 The utility model discloses a kind of safety isolation devices of hoisting equipment, comprising:

[0028] Emergency stop switch 1, with several and in circular array distribution, with the same number of mechanism included on hoisting equipment, each described emergency stop switch 1 is respectively connected into the control loop of each actuator.

[0029] In specific implementation, there are several, and several emergency stop switches 1 are connected into the control loop of equal number of mechanism included on hoisting equipment, energy isolation of individual mechanism can be realized, avoid accident high in accident repair, emergency handling etc. Process, with safety isolation protection. Wherein, "several" refers to more than two.

[0030] In an embodiment, the number of described emergency stop switch 1 is provided with 6, 6 described emergency stop switch 1 is respectively corresponding with the whole vehicle, main hook, auxiliary hook, main trolley, auxiliary trolley, 6 actuators of car on hoisting equipment, and is connected into the control loop of corresponding actuator in the form of series.

[0031] In specific implementation, according to the number of whole vehicles, main hooks, auxiliary hooks, main trolleys, auxiliary trolleys and large trolley mechanisms included in the hoisting equipment, the same number of emergency stop switches 1 are provided, and each emergency stop switch 1 is connected in the control loop of the corresponding mechanism, so as to individually isolate the energy of the corresponding mechanism.

[0032] In an embodiment, the bodies of the plurality of emergency stop switches 1 are located at one place and in a bottom box 2, and a cover 3 is adaptively arranged on the bottom box 2, and a round opening is formed through the cover 3.

[0033] An opening and closing assembly 4 is rotationally arranged on the round opening and used for operating any one of the emergency stop switches 1. In this way, by installing the bottom box 2 in the hoisting control room and placing the six emergency stop switches 1 connected in the control loops of the mechanisms of the hoisting equipment in the bottom box 2 and protected by the cover 3, and by boltedly connecting the four corners between the bottom box 2 and the cover 3, the emergency stop switches 1 connected in the control loops of the mechanisms can be protected, and the situation that the mechanisms are non-faulty stopped due to accidental pressing in the non-use state is reduced.

[0034] The opening and closing assembly 4 rotationally arranged in the round opening formed through the turning of the cover 3 can open and close any one of the emergency stop switches 1 and individually isolate the energy of the corresponding mechanism, greatly avoiding the accidental touch, and on the other hand, the inner cavity of the bottom box 2 forms a relatively closed space under the cooperation of the cover 3, preventing the outside dust from entering the inner cavity and affecting the normal use of the emergency stop switches 1.

[0035] In an embodiment, the opening and closing assembly 4 includes a movable round plate 41 rotationally arranged on the round opening, and a sliding groove 42 eccentrically arranged on the movable round plate 41, one end of the groove bottom of the sliding groove 42 is provided with an operation opening 43 in communication with the inner cavity of the bottom box 2, and a sliding cover 44 is slidably arranged in the sliding groove 42.

[0036] The sliding cover 44 is used for covering and exposing the operation opening 43. In this way, by rotationally arranging the movable round plate 41 in the round opening and eccentrically turning and machining the sliding groove 42 on one side of the movable round plate 41, when it is needed to operate a certain emergency stop switch 1, the movable round plate 41 is first rotated so that the sliding cover 44 is positioned at the corresponding emergency stop switch 1, and then the sliding cover 44 is radially slid in the sliding groove 42, so that the operation opening 43 turned and machined on one side of the bottom surface of the sliding groove 42 is opened, and then the corresponding mechanism can be individually isolated by pressing the emergency stop switch 1.

[0037] It should be noted that the sliding cover 44 is provided with a lock catch above the operation opening 43, and in the non-use state, the sliding cover 44 is fixed in position above the operation opening 43, achieving the closed and locked state.

[0038] In an embodiment, the cover 3 is provided with identification tags 5 corresponding to the number of emergency stop switches 1. In this design, by embedding 6 identification tags 5 on the cover 3 and around the circular opening, and labeling the names of the whole vehicle, main hook, auxiliary hook, main trolley, auxiliary trolley, and car 6 mechanisms included in the hoisting equipment on each identification tag 5, it is convenient to accurately and quickly operate the emergency stop switch 1 of the corresponding mechanism when subsequently operating the opening and closing assembly 4 externally.

[0039] In an embodiment, the peripheral surface of the movable circular plate 41 is provided with an annular guide rail groove 411, and the side of the circular opening is provided with an annular guide rail 6 matched with the annular guide rail groove 411. In this design, by turning the annular guide rail groove 411 on the peripheral surface of the movable circular plate 41 and the annular guide rail 6 welded on the inner side of the circular opening and matched with the annular guide rail groove 411, and the cross sections of the annular guide rail groove 411 and the annular guide rail 6 are both T-shaped, the movable circular plate 41 rotatingly connected inside the circular opening can be limited, which is convenient for operating the rotation of the movable circular plate 41.

[0040] In an embodiment, the annular guide rail 6 is slotted and provided with a number of semicircular protrusions 7 corresponding to the number of emergency stop switches 1, the inner end of the semicircular protrusion 7 is fixed with a spring, and the end of the sliding cover 44 is provided with a semicircular groove 441 matched with the semicircular protrusion 7. When the semicircular groove 441 is aligned with the semicircular protrusion 7, the spring can push the semicircular protrusion 7 into the semicircular groove 441. In this design, by welding the spring in the slot turned on the annular guide rail 6, welding the semicircular protrusion 7 on the outer end of the spring, and turning the semicircular groove 441 on the end of the sliding cover 44, the position of the sliding cover 44 can be quickly positioned, so that the operating opening 43 below the sliding cover 44 is coaxial with the emergency stop switch 1 of the corresponding mechanism, and the emergency stop switch 1 can be accurately pressed and operated.

[0041] In an embodiment, the operating opening 43 is provided with a through opening 431 matched with the rotation of the annular guide rail 6. In this design, by turning the through opening 431 on one side of the operating opening 43 close to the annular guide rail 6, the operating opening 43 will not interfere with the above movement during the rotation of the movable circular plate 41.

[0042] In an embodiment, it also includes a terminal 8, which is provided on the bottom box 2, one end of which is connected with the wires of the number of emergency stop switches 1, and the other end is connected to the control loop of the corresponding actuator. In this design, by screwing the terminal 8 on the outer side end of the bottom box 2, the connection wires of the 6 emergency stop switches 1 can be connected one by one, so as to realize the connection of the 6 emergency stop switches 1 into the control loop of the 6 mechanisms included in the hoisting equipment.

[0043] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and not restrictive, the scope of the present application being defined by the appended claims rather than the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. A safety isolation device for a hoisting apparatus, characterized in that include: An emergency stop switch (1) is provided in several units and arranged in a circular array, which is the same number as the number of mechanisms included in the lifting equipment. Each emergency stop switch (1) is connected in series in the control circuit of each actuator. The bodies of several emergency stop switches (1) are located in one place and are located in a bottom box (2). A cover (3) is adapted to be provided on the bottom box (2), and a round opening is provided through the cover (3). The opening and closing assembly (4) is rotatably mounted on the circular opening and is used to operate any one of the emergency stop switches (1).

2. A safety isolator for a hoisting apparatus as defined in claim 1, wherein: The number of emergency stop switches (1) is 6. The 6 emergency stop switches (1) correspond to the 6 actuators included in the lifting equipment, namely the main vehicle, main hook, auxiliary hook, main trolley, auxiliary trolley and trolley, and are connected in series to the control circuit of the corresponding actuator.

3. A safety shield for a hoisting apparatus as defined in claim 1, wherein: The opening and closing assembly (4) includes a movable circular plate (41) rotatably disposed on the circular opening and a sliding groove (42) eccentrically disposed on the movable circular plate (41). One end of the bottom of the sliding groove (42) is provided with an operation port (43) communicating with the inner cavity of the bottom box (2). A sliding cover (44) is slidably disposed in the sliding groove (42). The sliding cover (44) is used to cover the operating port (43) and expose the operating port (43).

4. A safety shield for a hoisting apparatus as defined in claim 1, wherein: The cover (3) is provided with an identification tag (5) corresponding to each of the emergency stop switches (1).

5. A safety shield for a hoisting apparatus as defined in claim 3, wherein: The movable circular plate (41) has an annular guide groove (411) on its circumference, and the side of the circular opening is provided with an annular guide rail (6) that is adapted to the annular guide groove (411).

6. A safety isolator for a hoisting apparatus as defined in claim 5, wherein: The annular guide rail (6) has a slot and is provided with a semi-circular protrusion (7) corresponding to several emergency stop switches (1). The inner end of the semi-circular protrusion (7) is fixed with a spring. The end of the sliding cover (44) is provided with a semi-circular groove (441) that is adapted to the semi-circular protrusion (7). When the semi-circular groove (441) is aligned with the semi-circular protrusion (7), the spring can push the semi-circular protrusion (7) into the semi-circular groove (441).

7. A safety isolator for a hoisting apparatus as defined in claim 6, wherein: The operating port (43) is provided with a passage (431) adapted to the rotation of the annular guide rail (6).

8. A safety shield for a hoisting apparatus as defined in claim 1, wherein: It also includes a wiring terminal (8), which is disposed on the bottom box (2), with one end connected to the wires of several emergency stop switches (1) and the other end connected to the control circuit of the corresponding actuator.

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