CN217545257U

CN217545257U - Control device for construction elevator

Info

Publication number: CN217545257U
Application number: CN202221408359.9U
Authority: CN
Inventors: 何少忠; 黄文海; 洪欢; 吴红英; 陈达泉
Original assignee: Guangdong Liujian Group Co ltd
Current assignee: Guangdong Liujian Group Co ltd
Priority date: 2022-06-07
Filing date: 2022-06-07
Publication date: 2022-10-04
Anticipated expiration: 2032-06-07

Abstract

The utility model discloses a construction elevator control device, including the control electronic box, the inside of control electronic box is fixed with the mounting bracket through the screw, install electric bell, main contactor, time relay on the mounting bracket, time relay connects in parallel with the electric bell, and time relay's action circuit is established ties with the coil return circuit of main contactor, and the surface of control electronic box has seted up a plurality of through-holes, and installs the bunch cover in the through-hole; the utility model has the advantages that: the time relay circuit is organically combined with the original control circuit, the original use function and the operation of the safety device are not influenced, the occupied space is very small, and the operation and the maintenance are convenient; the safety protection device plays an important role in daily safe use and safety protection of operators, and improves the safety in use of construction machinery, so that the occurrence probability of safety accidents of construction hoisting machinery equipment is reduced; when the wire passes through the wire ring, the resistance of the wire when passing through is reduced under the action of the first ball.

Description

Control device for construction elevator

Technical Field

The utility model belongs to the technical field of the elevator control, concretely relates to construction is controlling means for lift.

Background

Along with the increasing quantity and scale of modern construction engineering projects, the accident rate in the aspect of construction hoisting machinery also tends to rise year by year, wherein human factors account for a large proportion, such as the assembly and disassembly operation process, the attachment and section adding operation process of a construction elevator, the daily use of constructors and the like; among the factors, potential hidden dangers in daily use of the construction elevator are particularly prominent, and because the used objects are various construction teams and groups, the number of the personnel is large, and the safety precaution consciousness is uneven; some workers have weak crisis consciousness, cannot judge the dangerous behaviors of the workers and others in time or clearly know the danger, but are difficult to control and stop powerfully, and the hidden danger is expanded continuously.

In the long-term use process of the construction elevator, for convenience, some workers can illegally control the cage to operate one by one so as to achieve the purposes of feeding and discharging; the concrete process is that when a driver of the construction elevator is absent, workers on the feeding side press a driver operation panel starting button and a lifting handle by using a heavy object; the method comprises the following steps that a feeding door is closed, a cage is automatically in an ascending or descending state, a worker on the other side, which is ready for unloading, opens a landing door in advance by using an illegal means to wait for the arrival of the cage, when the cage arrives at a proper position of a preset floor, the unloading worker immediately stretches a hand to open a cage door in the cage, and the cage is powered off and stops due to the action of an interlocking switch; after the unloading is finished, the unloading worker changes the state of the operating handle, the cage is started again at the moment of closing the cage door, the cage automatically reaches the position of the feeding worker, the operation is repeated, and the cage is automatically powered off and stopped at the first layer and the top layer due to the stroke limit; in the process, the up-and-down operation of the cage is always in an unmanned state, the operation of the cage is controlled only by the illegal operation of workers and the triggering action of the up-and-down stroke limit switch, the hidden danger of the operation is very huge, and the influence and the consequence on enterprises and individuals caused by high fall, mechanical injury accidents caused by negligence of workers and cage top-rushing and derailing fall caused by stroke limit failure cannot be recovered and remedied.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a controlling means for construction elevator to the upper and lower operation of the cage of proposing is in unmanned driving state in solving above-mentioned background art, only controls the operation of cage by workman's violation operation and upper and lower stroke limit switch trigger action, and the hidden danger of its existence is very huge problem.

In order to achieve the above object, the utility model provides a following technical scheme: a control device for a construction elevator comprises a control electric box, wherein a mounting frame is fixed in the control electric box through screws, the mounting frame is stably mounted, an electric bell, a main contactor and a time relay are mounted on the mounting frame, the time relay is connected with the electric bell in parallel, an action circuit of the time relay is connected with a coil loop of the main contactor in series, a normally closed time relay is connected into the control electric box in a suspension cage of the construction elevator, action time is set, when a starting button of a driver operating platform is pressed for more than 3 seconds, the time relay acts, a suspension cage power supply line is disconnected, the suspension cage cannot be lifted continuously, the time relay resets immediately after the starting button is released, the power supply of the suspension cage is recovered and can be used continuously, the time relay line is organically combined with an original control line, the original use function and the operation of a safety device are not influenced, the occupied space is extremely small, and the operation and maintenance are convenient; the surface of the control electronic box is provided with a plurality of through holes, the wiring harness sleeve is installed in each through hole, the wiring harness sleeve is installed, a conductor ring is arranged on the inner side face of the wiring harness sleeve, a plurality of first balls are uniformly distributed on the inner side face of the conductor ring, and when a conductor passes through the conductor ring of the wiring harness sleeve, resistance of the conductor when the conductor passes through is reduced under the action of the first balls.

Preferably, the wire harness sleeve is of an annular structure, the guide mechanism is arranged on the wire harness ring and the wire harness sleeve and comprises a first guide block, a second guide groove, a second guide block and a first guide groove, the first guide grooves are symmetrically distributed on the inner side surface of the wire harness sleeve, the second guide blocks are arranged on the opposite surfaces of the two first guide grooves, the first guide block matched with the first guide groove is arranged on the outer side surface of the wire harness ring, the second guide groove matched with the second guide block is arranged on the end portion of the first guide block, and when the wire harness ring and the wire harness sleeve are installed, the guide of the wire harness ring and the wire harness sleeve during installation is increased by the aid of the matching of the first guide block, the first guide groove, the second guide groove and the second guide block.

Preferably, first guide block and wire loop formula structure as an organic whole have increased the intensity of first guide block and wire loop, be provided with firm subassembly on pencil cover and the first guide block, firm subassembly is including limit slot, movable block, expanding spring, recess, the limit slot of symmetric distribution is seted up to the side surface of first guide block, the recess of symmetric distribution is seted up on the surface of pencil cover, the one end embedding recess of movable block, the other end stretch out the recess to with limit the slot block and be connected, the tank bottom of recess is provided with expanding spring, and expanding spring's tip and the embedding end face of movable block are connected for pencil cover and first guide block are fixed, thereby have realized the installation of wire loop and pencil cover.

Preferably, the medial surface of recess is provided with the second ball of a plurality of symmetric distributions, and the second ball butt is on the movable block, and when the movable block pressurized activity, under the effect of second ball, resistance when having reduced the movable block pressurized activity.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) The time relay circuit is organically combined with the original control circuit, the original use function and the operation of the safety device are not influenced, the occupied space is very small, and the operation and the maintenance are convenient; the safety protection device plays an important role in daily safe use and safety protection of operators, and improves the safety in use of construction machinery, so that the occurrence probability of safety accidents of construction hoisting machinery equipment is reduced;

(2) When the lead passes through the lead ring, the resistance of the lead when passing through is reduced under the action of the first ball;

(3) The positioning of the wire loop and the wire harness sleeve during installation is increased by the aid of the designed guide mechanism and the cooperation of the first guide block, the first guide groove, the second guide groove and the second guide block;

(4) Through the designed stabilizing assembly, the stable installation of the wire ring and the wire harness sleeve is realized.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the connection structure of the wire harness sleeve and the wire ring of the present invention;

fig. 3 is an enlarged schematic view of the region D in fig. 2 according to the present invention;

fig. 4 is an enlarged schematic structural diagram of a region E in fig. 3 according to the present invention;

FIG. 5 is a schematic view of the connection structure of the electric bell, the time relay and the main contactor of the present invention;

in the figure: 1. controlling an electric box; 2. an electric bell; 3. a main contactor; 4. a time relay; 5. a mounting frame; 6. a wire bundling sleeve; 7. a wire loop; 8. a first ball bearing; 9. a first guide block; 10. a second guide groove; 11. a second guide block; 12. a first guide groove; 13. defining a slot; 14. a movable block; 15. a second ball bearing; 16. a tension spring; 17. and (6) a groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a control device for a construction elevator comprises a control electrical box 1, wherein a mounting frame 5 is fixed in the control electrical box 1 through screws, the mounting frame 5 is stably mounted, an electrical bell 2, a main contactor 3 and a time relay 4 are mounted on the mounting frame 5, in the control electrical box 1 of a construction elevator cage, a normally-closed time relay 4 is connected in parallel with a power supply of the electrical bell 2 of the cage to obtain electricity, an action circuit of the normally-closed time relay is connected in series with a coil loop of the main contactor 3 of a cage power supply circuit, when a start button is pressed for a long time, the time relay 4 is disconnected in action after 3 seconds, so that the coil of the main contactor 3 of the cage power supply is powered off, the cage stops lifting, when the start button is reset, the time relay 4 is reset immediately, the main contactor 3 is powered back, the cage can be used continuously, the function cannot be triggered by inching operation under the normal condition of the start button, the function circuit is generally arranged in the cage control electrical box 1 or a driver operation console, the concealment is strong, the short circuit is difficult, and the normal operation of the function can be effectively ensured; a plurality of through-holes have been seted up on the surface of control electronic box 1, and install bunch cover 6 in the through-hole, realized bunch cover 6's installation, the medial surface of bunch cover 6 is provided with wire ring 7, has realized wire ring 7's installation, and wire ring 7's medial surface is provided with a plurality of evenly distributed's first ball 8, when the wire passes in from wire ring 7, under first ball 8's effect, resistance when having reduced the wire and passing.

In this embodiment, preferably, the wire harness sleeve 6 is an annular structure, the wire harness ring 7 and the wire harness sleeve 6 are provided with a guide mechanism, the guide mechanism includes a first guide block 9, a second guide groove 10, a second guide block 11 and a first guide groove 12, the inner side surface of the wire harness sleeve 6 is provided with the first guide grooves 12 which are symmetrically distributed, the opposite surfaces of the two first guide grooves 12 are provided with the second guide blocks 11, the outer side surface of the wire harness ring 7 is provided with the first guide block 9 which is matched with the first guide groove 12, the end portion of the first guide block 9 is provided with the second guide groove 10 which is matched with the second guide block 11, and when the wire harness ring 7 and the wire harness sleeve 6 are installed, the positioning of the wire harness ring 7 and the wire harness sleeve 6 is increased by using the matching of the first guide block 9, the first guide groove 12, the second guide groove 10 and the second guide block 11.

In this embodiment, preferably, the first guide block 9 and the wire guide ring 7 are of an integrated structure, strength of the first guide block 9 and strength of the wire guide ring 7 are increased, the wire harness sleeve 6 and the first guide block 9 are provided with the stabilizing component, the stabilizing component comprises a limiting groove 13, a movable block 14, an expansion spring 16 and a groove 17, the side surface of the first guide block 9 is provided with the limiting groove 13 which is symmetrically distributed, the surface of the wire harness sleeve 6 is provided with the symmetrically distributed groove 17, one end of the movable block 14 is embedded into the groove 17, the other end of the movable block 14 extends out of the groove 17 and is clamped and connected with the limiting groove 13, a groove bottom of the groove 17 is provided with the expansion spring 16, an end of the expansion spring 16 is connected with an embedded end face of the movable block 14, when the first guide block 9 is inserted into the first guide groove 12, the movable block 14 is pressed and compresses the expansion spring 16, the expansion spring 16 is reset after being pressed and compressed, the movable block 14 is driven to be clamped with the limiting groove 13 of the first guide block 9, stable installation of the wire harness sleeve 6 and the first guide block 9 is realized, because the first guide block 9 and the wire guide ring 7 are of an integrated structure, and the wire guide ring 7 are realized.

In this embodiment, preferably, the inner side surface of the groove 17 is provided with a plurality of second balls 15 which are symmetrically distributed, and the second balls 15 abut against the movable block 14, so that when the movable block 14 is pressed to move, under the action of the second balls 15, the resistance of the movable block 14 during moving is reduced.

It should be added that: the construction steps are as follows: checking an electrical wiring diagram of the construction hoist and researching the most reasonable wiring mode; configuring a proper time relay 4 according to the parameters of the main contactor 3 and the electric bell 2; and (4) debugging and testing the wiring, checking by a construction ladder manufacturer personnel, and finally checking and accepting.

The construction process relates to power utilization operation, an operator needs to have effective electrician certificate on duty, when the time relay 4 is installed, the operator needs to select a normally closed time-delay on-off type, and a proper model specification is selected in advance according to the power supply voltage value of the cage electric bell 2 and the coil power supply voltage value of the main contactor 3 in a cage power supply line so as to ensure normal power supply of the time relay 4 and normal operation of triggering power-off action; the time relay 4 is installed without changing or influencing the electric circuit of the original safety device of the construction elevator; the control circuit of the device is not subjected to the actions of the time relay 4 circuit, so that the abnormal conditions of time delay, interruption, sensitivity reduction and poor contact can be avoided; the time relay 4 used in installation needs to be durable and reliable, and has clear delivery certification and quality assurance documents or inspection certificates; the grade of the wire material and the standard of the crimping connector form are not lower than the grade and the standard of the original line of the construction elevator; the insulating layer is intact, the joint is not exposed, electric conductivity is good, the circuit is arranged neatly, make the sign, pay attention to and do the work of hiding.

The utility model discloses a theory of operation and use flow: when the wire loop 7 and the wire harness sleeve 6 are installed, the positioning of the wire loop 7 and the wire harness sleeve 6 is increased by the matching of the first guide block 9, the first guide groove 12, the second guide groove 10 and the second guide block 11; when the first guide block 9 is inserted into the first guide groove 12, the movable block 14 is pressed and compresses the telescopic spring 16, the telescopic spring 16 is reset after being pressed and compressed, and the movable block 14 is driven to be clamped with the limiting groove 13 of the first guide block 9, so that the stable installation of the wire harness sleeve 6 and the first guide block 9 is realized, and the wire harness sleeve 7 and the wire harness sleeve 6 are stably installed due to the fact that the first guide block 9 and the wire harness ring 7 are of an integrated structure; when the wire passes through the wire ring 7, the resistance of the wire when passing through is reduced under the action of the first ball bearing 8;

in a control electrical box 1 of a construction elevator cage, a normally closed time relay 4 is connected in parallel with a power supply of a cage electrical bell 2 to get electricity, an action circuit of the normally closed time relay is connected in series with a coil loop of a main contactor 3 of a cage power supply line, when a start button is pressed for a long time, the action of the time relay 4 is disconnected after 3 seconds, so that the coil of the main contactor 3 of the cage power supply is powered off, the cage stops lifting, when the start button is reset, the time relay 4 is reset immediately, the power supply of the main contactor 3 is recovered, the cage can be continuously used, the function cannot be triggered by inching operation under the normal condition of the start button, the function circuit is generally arranged in the cage control electrical box 1 or a driver operation console, the concealment is strong, the short circuit difficulty is large, and the normal operation of the function can be effectively ensured.

Although 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 alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a controlling means for construction elevator, includes control electronic box (1), the inside of control electronic box (1) is fixed with mounting bracket (5), its characterized in that: the electric bell (2), the main contactor (3) and the time relay (4) are mounted on the mounting frame (5), the time relay (4) is connected with the electric bell (2) in parallel, and an action circuit of the time relay (4) is connected with a coil loop of the main contactor (3) in series; the surface of the control electronic box (1) is provided with a plurality of through holes, a wire bundling sleeve (6) is installed in each through hole, a wire guiding ring (7) is arranged on the inner side surface of each wire bundling sleeve (6), and a plurality of first balls (8) which are uniformly distributed are arranged on the inner side surface of each wire guiding ring (7).

2. The control device for the construction elevator according to claim 1, wherein: the wire harness sleeve (6) is of an annular structure, and guide mechanisms are arranged on the wire guide ring (7) and the wire harness sleeve (6).

3. The control device for the construction elevator according to claim 2, wherein: the guide mechanism comprises a first guide block (9), a second guide groove (10), a second guide block (11) and a first guide groove (12), wherein the first guide grooves (12) are symmetrically distributed on the inner side surface of the wire harness sleeve (6), the second guide blocks (11) are arranged on opposite surfaces of the two first guide grooves (12), the first guide block (9) matched with the first guide groove (12) is arranged on the outer side surface of the wire guide ring (7), and the second guide groove (10) matched with the second guide block (11) is formed in the end part of the first guide block (9).

4. The control device for the construction elevator according to claim 3, wherein: the wire harness sleeve is characterized in that the first guide block (9) and the wire ring (7) are of an integrated structure, and the wire harness sleeve (6) and the first guide block (9) are provided with stabilizing components.

5. The control device for the construction elevator according to claim 4, wherein: firm subassembly is including limiting groove (13), movable block (14), expanding spring (16), recess (17), the limited groove (13) of symmetric distribution are seted up to the side surface of first guide block (9), symmetrically distributed's recess (17) are seted up on the surface of pencil cover (6), recess (17) are embedded to the one end of movable block (14), and the other end stretches out recess (17) to be connected with limited groove (13) block, the tank bottom of recess (17) is provided with expanding spring (16), and the tip of expanding spring (16) and the end face connection that inlays of movable block (14).

6. The control device for the construction elevator according to claim 5, wherein: the inner side surface of the groove (17) is provided with a plurality of second balls (15) which are symmetrically distributed, and the second balls (15) are abutted against the movable block (14).