CN220906858U - Overhead protection device for construction of elevator scaffold-free - Google Patents

Abstract

The utility model relates to the technical field of elevator construction and discloses a head top protection device for scaffold-free construction of an elevator, which comprises a supporting mechanism and a head top protection mechanism, wherein the supporting mechanism comprises a transverse supporting part and a vertical supporting part, the transverse supporting part and the vertical supporting part are of telescopic structures, four transverse supporting parts enclose a rectangular accommodating space, the head top protection mechanism is arranged in the rectangular accommodating space, the vertical supporting part is fixedly arranged between the end parts of two adjacent transverse supporting parts and extends downwards to be fixedly connected with a guardrail of a car top, the head top protection mechanism comprises a head top protection main body and an extension part, the extension part comprises a first extension part, the first extension part is arranged in the protection main body in a sliding manner, and the area of the head top protection mechanism is enlarged through the relative sliding of the first extension part and the head top protection main body. The suitability and the installation efficiency of the overhead protection device are improved through the adjustable supporting mechanism and the overhead protection mechanism.

Description

Overhead protection device for construction of elevator scaffold-free

Technical Field

The utility model relates to the technical field of elevator construction, in particular to a head top protection device for elevator scaffold-free construction.

Background

The construction process of the elevator without the scaffold mainly comprises the steps of firstly assembling a car, a car bottom plate and a counterweight frame, installing machine room equipment such as a host machine and a control cabinet, hanging a steel wire rope, then temporarily using electricity to run, using the car as a moving platform, and using constructors, machines and installation materials to run from bottom to top along with the platform to perform installation work of guide rails, hall doors and electrical equipment in a hoistway, so that the scaffold is completely omitted. The specific construction process flow comprises the following steps: the method comprises the steps of preparing work before starting, manufacturing a template, paying out, installing a landing door protective net, installing machine room equipment, installing pit equipment, installing a top layer working platform, installing a counterweight frame, hanging a steel wire rope, adding counterweight iron, adjusting a portal frame, installing a car moving working platform, hanging a travelling cable and a car roof maintenance box, debugging and maintenance speed operation, installing other guide rails, installing landing doors, installing well equipment, cables, assembling car walls, installing a door machine, debugging a fast car, and checking and accepting installation quality. The scaffold is omitted in the construction cost, so that the engineering cost is reduced, the phenomenon that the datum line is interfered due to the up-down cross operation when the landing sill is installed can be avoided, the installation accuracy is ensured, and the landing sill is widely appreciated.

However, since work is performed in the hoistway, there is a risk of injury to the person due to falling objects, overhead protection is required for all work in the hoistway.

At present, chinese patent bulletin number: CN204627016U discloses a top of lift car protection device of a scaffold-free construction elevator, including top of head fender bracket (1), top of head fender bracket (1) includes four cross bracing pieces (2) that enclose into rectangular shape, adjacent two all be equipped with between the tip of cross bracing piece (2) down extend and be used for with the guardrail fixed connection's of top of lift car upright support column (3), adjacent two between the tip of cross bracing piece (2) and the upper end of this adjacent upright support column (3) through corner connecting device fixed connection, utilize wire rope cross to form the crisscross wire rope protection zone of strengthening of net form to realize the protection work to top of head, but because the elevator has multiple specification, the size of each specification is inconsistent, all need carry out the installation work of wire rope cross reinforcement protection zone of every time of construction, the operation is loaded down with trivial details, and the efficiency of construction is too low.

Disclosure of utility model

The utility model aims to provide a head top protection device for the construction of an elevator without a scaffold, so as to improve the installation efficiency of the head top protection device of the car top of the elevator without the scaffold.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a overhead protection device for construction of elevator no scaffold frame, including supporting mechanism and overhead protection mechanism, supporting mechanism includes horizontal supporting part and erects supporting part, but horizontal supporting part and erects supporting part are extending structure, four horizontal supporting parts enclose into rectangle accommodation space, overhead protection mechanism sets up in rectangle accommodation space, erect supporting part fixed setting between the tip of two adjacent horizontal supporting parts and extend to the below and car overhead guardrail fixed connection, overhead protection mechanism includes overhead protection main part and extension, the extension includes first extension, first extension slides and sets up in the protection main part, enlarge overhead protection mechanism's area through the relative slip of first extension and overhead protection main part.

The beneficial effect of this scheme is: because the depth and the width of the elevator car of different specifications are different, when the elevator of different specifications is constructed, the supporting mechanism and the overhead protection mechanism of different sizes are needed, the supporting mechanism in the scheme can freely adjust the lengths of the transverse supporting part and the vertical supporting part, the overhead protection mechanism can also expand the area of the overhead protection mechanism through the relative sliding of the first extension piece and the overhead protection main body, so that the elevator construction condition of different specifications is adapted, a user only needs to adjust the transverse supporting part to a proper length and width and fixedly connected with one end of the vertical supporting part, the other end of the vertical supporting part is fixedly connected with the guardrail of the car overhead, then the height of the vertical supporting part is adjusted, and finally, the relative position of the first extension piece and the overhead protection main body is adjusted, so that the overhead protection mechanism is positioned in the rectangular accommodating space enclosed by the four transverse supporting parts, and the overhead protection device can be operated simply and conveniently, and the installation efficiency is high.

Further, the extension part further comprises a second extension piece, two protrusions are arranged on the inner side edge of the first extension piece, and a gap is formed between each protrusion and the first extension piece; two protrusions are slidably arranged on the second extension piece, an elastic piece is arranged between the two protrusions, and the protrusions of the second extension piece can abut against the notches of the first extension piece.

The beneficial effects are that: the opposite sides of two first extension pieces are the inboard, supports tightly through the breach of the protruding and first extension piece medial side of second extension piece, guarantees that first extension piece can not retract, and the outside of first extension piece supports tightly with the inner wall of rectangle accommodation space, avoids the car operation time, and first extension piece is retracted because vibrations, leads to top of the head protection mechanism to drop, appears the potential safety hazard.

Further, the overhead protection main body is rectangular, a first sliding groove extending in the length direction is formed in the overhead protection main body, and the first extension piece is matched with the first sliding groove.

The beneficial effects are that: in general, the car depth of the passenger elevator is a certain value (1.4 m), the difference is the width of the elevator, and when the passenger elevator is constructed, the construction requirement can be met only by adjusting the relative position of the first extension piece and the overhead protection main body in one direction.

Further, a second sliding groove extending in the width direction and a third sliding groove extending in the diagonal direction are further formed in the overhead protection main body, the first extending piece is matched with the second sliding groove and the third sliding groove, and inner side endpoints of the first sliding groove, the second sliding groove and the third sliding groove are overlapped.

The beneficial effects are that: through setting up second spout and third spout, combine first spout, overhead protection machanism can possess length, width or long width adjustment simultaneously, the elevator construction demand of multiple specification of adaptation.

Further, the material of overhead protection mechanism is the Parm board.

The beneficial effects are that: the Parm board is a special transparent material with the mechanical properties only and comprehensively approaching metals in all transparent materials, the processing is easy, the Parm board is selected to manufacture the overhead protection mechanism, on one hand, the performance of the overhead protection mechanism for preventing falling objects is hardly reduced, on the other hand, the Parm board has good optical properties, no visual deflection and optical distortion are generated, a constructor can intuitively observe the working environment above the overhead protection mechanism, meanwhile, the weight of the Parm high-temperature-resistant high-molecular carbon-polymer organic glass board is only 15.6% of that of a steel plate, the dead weight is lower, the constructor can move the overhead protection mechanism to an installation position through manpower without help of tools during installation, the construction efficiency is improved, on the other hand, a part of construction area is positioned above the overhead protection mechanism, the constructor does not need to extend the head out of the protection range of the overhead protection mechanism for construction, the field of view below the overhead protection mechanism is not limited, and the life safety of the constructor is ensured only by extending the hand above the overhead protection mechanism.

Meanwhile, as the head top protection mechanism after the installation is a complete plane, dust generated when the falling object above falls down can not fall down, and the danger of constructors caused by the fact that the dust falls into eyes of the constructors in the construction process is avoided.

Further, the horizontal supporting part and the vertical supporting part are double-layer angle steel, a chute is arranged on the angle steel, a fastener is arranged in the chute, and the double-layer angle steel slides relatively to adjust the corresponding length and is fixed through the fastener.

The beneficial effects are that: the angle steel is easy to obtain and has corresponding structural strength, uses double-deck angle steel as the raw materials of horizontal supporting part and perpendicular supporting part, and the user can accomplish bearing structure's processing work by oneself on the one hand, only needs customization overhead protection machanism, but reduce cost, raise the efficiency, on the other hand, and the structure after dismantling is rectangular, and the structure is comparatively regular, the transportation and the storage of being convenient for save and store and cost of transportation.

Further, the lateral support portion and the vertical support portion are provided with scales for facilitating rapid adjustment of the required length by a user.

The beneficial effects are that: the transverse supporting part and the vertical supporting part are provided with corresponding scales, so that people can mutually cooperate to quickly assemble the device during construction, and the working efficiency is accelerated.

Further, the support mechanism further includes a reinforcing portion provided between the adjacent lateral support and vertical support portions.

The beneficial effects are that: the whole structural strength of the supporting mechanism can be improved through the reinforcing part, so that when the device is prevented from being used, the device is deformed, and potential safety hazards appear.

Further, the height of the protruding notch is greater than 10mm, and the maximum distance between the protrusions on the single second extension piece is greater than the distance between the inner side edges when the first extension piece is fully unfolded.

The beneficial effects are that: the protruding height of first extension piece is too low to be unfavorable for forming effectual support to the second extension piece, simultaneously because protruding interval is greater than the interval of interior side when first extension piece is expanded completely on the second extension piece, when protruding and breach support tightly, first extension piece receives the elasticity support of elastic component, can ensure that first extension piece can not retract because of the up-and-down motion of bridge case, leads to top of the head protection machanism to drop.

Drawings

FIG. 1 is a three-dimensional view of an embodiment of the present utility model;

FIG. 2 is a three-dimensional view of the support mechanism of the present utility model;

FIG. 3 is an enlarged view of FIG. 2A in accordance with the present utility model;

FIG. 4 is a three-dimensional view of the lateral support member of the present utility model;

Fig. 5 is an expanded schematic view of an overhead protection mechanism according to an embodiment of the present utility model.

Detailed Description

The following is a further detailed description of the embodiments:

Reference numerals in the drawings of the specification include: vertical support 1, vertical support body 11, vertical support extension 12, lateral support 2, lateral support body 21, lateral support extension 22, overhead protection mechanism 3, overhead protection body 31, first extension 32, projection 321, gap 322, second extension 33, reinforcement 4.

Examples

The embodiment is basically shown in figures 1-5, and the overhead protection device for the construction of the elevator scaffold-free construction shown in figures 1-5 comprises a supporting mechanism and an overhead protection mechanism 3, wherein the supporting mechanism comprises a transverse supporting part 2, a vertical supporting part 1 and a reinforcing part 4, the transverse supporting part 2 and the vertical supporting part 1 are of telescopic structures, the structures are basically the same, the transverse supporting part 2 and the vertical supporting part 1 are double-layer angle steel, a chute is arranged on the angle steel, scales are arranged on two sides of the chute of the inner-layer angle steel, fasteners, preferably bolts, are arranged in the chute, and the double-layer angle steel relatively slides to adjust the corresponding length and is fixed through the two fasteners. As shown in fig. 4, the horizontal supporting part 2 includes a horizontal supporting part main body 21 and a horizontal supporting part extension piece 22, the vertical supporting part 1 includes a vertical supporting part main body 11 and a vertical supporting part extension piece 12, as shown in fig. 2 and 3, four horizontal supporting parts 2 enclose a rectangular accommodating space, the overhead protection mechanism 3 is arranged in the rectangular accommodating space and is adapted to the rectangular accommodating space, the vertical supporting part 1 is fixedly arranged between the end parts of two adjacent horizontal supporting parts 2 and extends downwards to be fixedly connected with a guardrail of the car roof, and the reinforcing part 4 is arranged between the adjacent horizontal supporting parts and the vertical supporting part 1 and is connected through bolts.

As shown in fig. 1 and 5, the overhead protection mechanism 3 is a pamer board, and includes an overhead protection main body 31 and an extension portion, the overhead protection main body 31 is rectangular, a first chute extending in a length direction, a second chute extending in a width direction, and a third chute extending in a diagonal direction are provided in the overhead protection main body 31, and inner side end points of the first chute, the second chute, and the third chute are overlapped.

As shown in fig. 5, the extension includes a first extension 32 and a second extension 33, the first extension 32 being slidably disposed within the overhead guard body 31 and being adapted to the first, second and third runners. The area of the overhead guard mechanism 3 is enlarged by sliding the first extension 32 relative to the overhead guard main body 31. The first extension piece 32 is provided with two protruding pieces 321, the height of protruding pieces 321 is greater than 10mm, preferably 30mm, a gap 322 is formed between the protruding pieces 321 and the first extension piece 32, protrusions are arranged on the second extension piece 33 in a sliding mode, elastic pieces, preferably springs, are arranged between the protruding pieces, when the elastic pieces are in a normal state, the protruding intervals are greater than the intervals of inner side edges when the first extension piece 32 is fully unfolded, during use, the second extension piece 33 is placed on the protruding pieces 321, on one hand, the protruding pieces 321 provide support for the second extension piece 33, so that the second extension piece 33 can be stably placed on the first extension piece 32, on the other hand, the protruding pieces of the second extension piece 33 are placed in the gap 322 and can be abutted against the first extension piece 32 to avoid retracting the first extension piece 32, so that the outer side of the first extension piece 32 is abutted against the inner wall of a rectangular accommodating space, reliable installation of the overhead protection mechanism 3 and the support mechanism is guaranteed, vibration is avoided when the overhead protection mechanism is moved up and down, and the overhead protection mechanism is caused to fall down.

The specific implementation process is as follows:

1. According to the size of the bridge box of the construction elevator, the lengths of the transverse supporting part 2 and the vertical supporting part 1 are adjusted on the bridge box, and the lengths of the transverse supporting part 2 and the vertical supporting part 1 are fixed by screwing bolts;

2. The lower end of the vertical supporting part 1 is connected with a guardrail at the top of the car through bolts;

3. the transverse supporting part 2 is connected with the upper end of the vertical supporting part 1 through bolts by means of a temporary scaffold, and the opposite side transverse supporting part 2 is installed in parallel;

4. Installing the reinforcement 4 by means of temporary scaffolding;

5. Lifting the overhead protection main body 31 and the first extension piece 32 of the overhead protection mechanism 3 to the rectangular accommodating space surrounded by the four transverse supporting parts 2 by means of a temporary scaffold, and sliding the first extension piece 32 so that two sides of the first extension piece 32 are attached to the side walls of the rectangular accommodating space;

6. Lifting the second extension piece 32 above the overhead protection main body, attaching one end protrusion of the second extension piece 32 to the inner side notch 322 of the first extension part, compressing the opposite side protrusion to the inner side notch 322 of the opposite side first extension piece 32, and ensuring that both ends of the second extension piece 33 are positioned above the protrusions 321 of the first extension piece 32;

7. After the construction is finished, the second extension piece 33 is removed, the first extension piece 32 is retracted into the overhead protection main body 31 and removed, and then the supporting mechanism is removed from top to bottom in sequence.

The foregoing is merely exemplary of the present utility model, and specific technical solutions and/or features that are well known in the art have not been described in detail herein. It should be noted that the technical means for solving the problems in the above-mentioned embodiments of the present utility model may be combined to solve a plurality of technical problems at the same time, and it is also possible for those skilled in the art to make several modifications and improvements without departing from the technical solution of the present utility model, which should also be regarded as the protection scope of the present utility model, and these should not affect the implementation effect of the present utility model and the practical applicability of the patent. The protection scope of the present utility model is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.

Claims (9)

1. A overhead protection device for construction of elevator no scaffold, its characterized in that: including supporting mechanism and overhead protection mechanism, supporting mechanism includes horizontal supporting part and erects supporting part, but horizontal supporting part and erects supporting part are extending structure, but four horizontal supporting parts enclose into rectangle accommodation space, overhead protection mechanism sets up in rectangle accommodation space and with rectangle accommodation space adaptation, erect supporting part fixed setting between the tip of two adjacent horizontal supporting parts and extend and car overhead guardrail fixed connection downwards, overhead protection mechanism includes overhead protection main part and extension, the extension includes first extension, first extension slides and sets up in the protection main part, through first extension and overhead protection main part relative slip expansion overhead protection mechanism's area.

2. A head top protection device for use in scaffold-free construction of elevators according to claim 1, wherein: the extension part further comprises a second extension piece, two bulges are arranged on the inner side edge of the first extension piece, and a gap is formed between each bulge and the first extension piece; two protrusions are slidably arranged on the second extension piece, an elastic piece is arranged between the two protrusions, and the protrusions of the second extension piece can be abutted against the notches of the first extension piece.

3. A head top protection device for use in scaffold-free construction of elevators according to claim 2, wherein: the overhead protection main body is rectangular, a first sliding groove extending in the length direction is formed in the overhead protection main body, and the first extension piece is matched with the first sliding groove.

4. A head top protection device for use in scaffolding free construction of elevators according to claim 3, wherein: the inside second spout that width direction extended and the third spout that diagonal direction extended that still is provided with of overhead protection main part, first extension piece and second spout and third spout adaptation, the inboard extreme point coincidence of first spout, second spout and third spout.

5. The overhead protection device for use in scaffolding free construction of elevator as claimed in claim 4 wherein: the material of the overhead protection mechanism is Parm board.

6. The overhead protection device for use in scaffolding free construction of elevator as claimed in claim 5 wherein: the transverse supporting part and the vertical supporting part are double-layer angle steel, a chute is arranged on the angle steel, a fastener is arranged in the chute, and the double-layer angle steel slides relatively to adjust the corresponding length and is fixed through the fastener.

7. The overhead protection for use in scaffolding free construction of elevator of claim 6 wherein: the transverse supporting part and the vertical supporting part are respectively provided with a scale which is convenient for a user to quickly adjust the required length.

8. The overhead protection for use in scaffolding free construction of elevator as claimed in claim 7 wherein: the support mechanism further includes a reinforcing portion disposed between adjacent ones of the lateral and vertical support portions.

9. The overhead protection for use in scaffolding free construction of elevator of claim 8 wherein: the height of the protruding notch is larger than 10mm, and the maximum distance between the protrusions on the single second extension piece is larger than the distance between the inner side edges when the first extension piece is fully unfolded.