Auxiliary protection device for installing elevator steel wire rope

Abstract

The utility model discloses an auxiliary protection device for installing an elevator steel wire rope, which comprises a rectangular box body, and in the box body, a guide table, a first guide wheel, a speed wheel, a second guide wheel and a stopping device for limiting the movement of the steel wire rope are sequentially arranged in the direction from a through hole on one side to a through hole on the other side; wherein the speed wheel is connected with the box body in a sliding fit manner, so that the pressing force between the speed wheel and the steel wire rope can be changed. Through the arrangement of the wheel set and the stopping device, the pressing force of the speed wheel and the steel wire rope can be adjusted according to the gravity of the steel wire rope in the elevator steel wire rope installation process, so that the friction force is increased, the pulling force on the steel wire rope is improved, and the lowering speed of the steel wire rope is better limited; and when the steel wire rope is out of control, falling of the steel wire rope can be completely limited through the stopping device. The utility model has the advantages of simple structure, convenience in use and higher safety.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator equipment, in particular to an auxiliary protection device for installing an elevator wire rope. Background Art

[0002] At present, the installation of wire ropes in elevators on the market is basically completed by professional construction workers through mutual cooperation. However, there are also safety hazards during the installation process. For example, when the construction workers put the wire rope into the shaft in the machine room, the more wire ropes are put into the shaft, the heavier the gravity will be, and the corresponding tension on the workers will be greater. When the gravity of the wire rope exceeds the tension that the workers can bear, the workers working in the machine room cannot control the wire rope being put into the shaft. The wire rope loses the control of the machine room construction workers and will fall rapidly into the bottom pit of the shaft due to its own weight and gravity acceleration. The construction workers working in the shaft will be injured by the rapid fall of the wire rope, and then a safety accident will occur. In view of this safety hazard, we urgently need a safety protection measure to ensure the personal safety of the construction workers. Utility Model Content

[0003] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide an auxiliary protection device for installing an elevator wire rope, so as to solve the problem that the prior art installation of an elevator wire rope lacks protective equipment and is more dangerous.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows: an auxiliary protection device for installing an elevator wire rope, comprising a rectangular box, and through holes through which the wire rope can pass are opened in a horizontal direction on the opposite side walls of the box; in the box, a guide platform, a first guide wheel, a speed wheel, a second guide wheel and a blocking device for limiting the movement of the wire rope are arranged in sequence from the through hole on one side to the through hole on the other side, the guide platform and the blocking device are both provided with guide grooves, and the wheel surfaces of the first guide wheel, the speed wheel and the second guide wheel are provided with wheel grooves, the wire rope passes through the through holes on one side of the box, the guide groove of the guide platform, the upper wheel groove of the first guide wheel, the lower wheel groove of the speed wheel, the wheel groove of the second guide wheel and the guide groove of the blocking device in sequence, and then passes out from the through holes on the other side of the box; wherein, the speed wheel is slidably connected to the box so that it can change the pressing force with the wire rope.

[0005] As an optimization, sliding holes are vertically opened on the opposite side walls of the box corresponding to the speed wheel. One end of the rotating shaft of the speed wheel passes through the sliding hole on one side and is connected to a lifting mechanism, and the other end is rotatably installed in the sliding hole on the other side. The speed wheel can be moved up and down through the lifting mechanism.

[0006] As an optimization, a rotation speed sensor is installed on the rotating shaft of the speed wheel.

[0007] As an optimization, a group of limiting wheel groups are provided between the first guide wheel and the guide platform, and between the second guide wheel and the blocking device. The limiting wheel groups include two limiting wheels arranged opposite to each other up and down, and wheel grooves are provided on the wheel surfaces of the limiting wheels. The wheel grooves of the two limiting wheels are opposite to each other and form an enclosed area through which the wire rope can pass. The enclosed areas of the two groups of limiting wheel groups are respectively opposite to the guide grooves on the guide platform and the blocking device.

[0008] As an optimization, the blocking device includes an upper pressing platform and a lower pressing platform arranged relatively to each other up and down, and a connecting bolt connecting the upper pressing platform and the lower pressing platform, wherein the lower pressing platform is fixedly connected to the box body, and a screw hole is opened on the upper side of the lower pressing platform, and a guide hole corresponding to the screw hole is opened on the upper pressing platform, one end of the connecting bolt is provided with a thread, and the other end is provided with a nut, and the end provided with the thread is connected with the screw hole after passing through the guide hole, and a return spring is sleeved on the connecting bolt, one end of the return spring is abutted against the nut of the connecting bolt, and the other end is abutted against the upper side of the upper pressing platform, and the connecting bolt is slidably connected with the guide hole, so that the upper pressing platform can move in a direction close to the lower pressing platform and fit the lower pressing platform under the action of the return spring; an electromagnetic lifting device is provided on the lower pressing platform, which has a retractable lifting rod. In a natural state, the lifting rod can lift the upper pressing platform so that there is a distance between it and the lower pressing platform, and the electromagnetic lifting device can be retracted under electromagnetic action, so that the upper pressing platform can be pressed tightly with the lower pressing platform under the action of the return spring.

[0009] Compared with the prior art, the utility model has the following advantages: by setting the wheel set and the blocking device, during the installation of the elevator wire rope, the pressing force between the speed wheel and the wire rope can be adjusted according to the gravity of the wire rope, thereby increasing the friction force to increase the pulling force on the wire rope, thereby better limiting the lowering speed of the wire rope, assisting the installer to stably install the wire rope, and when the wire rope is out of control, the blocking device can completely limit the falling of the wire rope to ensure the safety of the installation. The utility model has a simple structure, is easy to use, and has higher safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the utility model;

[0011] In the figure: 1 box body, 2 guide platform, 3 first guide wheel, 4 speed wheel, 5 second guide wheel, 6 limit wheel, 7 upper pressing platform, 8 lower pressing platform, 9 connecting bolts, 10 lifting device. DETAILED DESCRIPTION

[0012] The utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0013] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0014] It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In the description of the present invention, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the invention product is usually placed when used, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In addition, the terms "horizontal", "vertical", etc. do not mean that the components are absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted. In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0015] Example: See Figure 1The invention discloses an auxiliary protection device for installing an elevator wire rope, comprising a rectangular box body 1, wherein the box body 1 is roughly n-shaped, and two side plates at the bottom thereof are bent and extended to opposite sides to form two ear plates, so as to facilitate fixing on a fixed structure and improve its stability. On the two opposite side walls of the box body 1, through holes are opened in the horizontal direction for the wire rope to pass through; in the box body 1, a guide platform 2, a first guide wheel 3, a speed wheel 4, a second guide wheel 5 and a blocking device for limiting the movement of the wire rope are arranged in sequence from the through hole on one side to the through hole on the other side, the guide platform 2 and the blocking device are both provided with guide grooves, and the wheel surfaces of the first guide wheel 3, the speed wheel 4 and the second guide wheel 5 are provided with wheel grooves, and the wire rope passes through the through hole on one side of the box body 1, the guide groove of the guide platform 2, the upper wheel groove of the first guide wheel 3, the lower wheel groove of the speed wheel 4, the wheel groove of the second guide wheel 5 and the guide groove of the blocking device in sequence, and then passes out from the through hole on the other side of the box body 1; wherein, the speed wheel 4 is slidably connected to the box body 1 so that it can change the pressing force with the wire rope. Specifically, sliding holes are vertically opened on the two opposite side walls of the box body 1 corresponding to the speed wheel 4. One end of the rotating shaft of the speed wheel 4 passes through the sliding hole on one side and is connected to a lifting mechanism, and the other end is rotatably installed in the sliding hole on the other side. The lifting mechanism can move the speed wheel 4 up and down. Among them, the lifting mechanism can adopt various forms, which is a mature existing technology and will not be described in detail. The present application uses an adjustable speed wheel 4 to make the speed wheel 4 also serve as a clamping wheel, and the speed of the speed wheel 4 itself can be set, thereby effectively limiting the lowering speed of the wire rope, and by adjusting the clamping force between the speed wheel 4 and the wire rope, the size of the friction force can be further adjusted, which further facilitates the adjustment of the speed of the wire rope and the tension on the wire rope, so as to better assist the workers in installation. When the wire rope is completely out of control, the wire rope can be completely fixed by a blocking device to improve safety.

[0016] A rotation speed sensor is installed on the rotating shaft of the speed wheel 4 to feed back the rotation speed of the speed wheel 4 so that the installation workers can refer to it and understand the lowering speed of the wire rope.

[0017] A set of limiting wheels 6 is provided between the first guide wheel 3 and the guide platform 2, and between the second guide wheel 5 and the blocking device. The limiting wheels 6 include two limiting wheels 6 arranged opposite to each other up and down, and a wheel groove is provided on the wheel surface of the limiting wheels 6. The wheel grooves of the two limiting wheels 6 are opposite to each other and form an enclosed area through which the wire rope can pass. The enclosed areas of the two sets of limiting wheels 6 are respectively opposite to the guide grooves on the guide platform 2 and the blocking device. The limiting wheels 6 can ensure that the wire rope can stably pass through the guide groove on the blocking device during the movement process to prevent shaking, thereby ensuring the stability of the movement of the wire rope.

[0018] The blocking device comprises an upper pressing platform 7 and a lower pressing platform 8 which are arranged opposite to each other, and a connecting bolt 9 connecting the upper pressing platform 7 and the lower pressing platform 8, wherein the lower pressing platform 8 is fixedly connected to the box body 1, and a screw hole is opened on the upper side of the lower pressing platform 8, and a guide hole corresponding to the screw hole is opened on the upper pressing platform 7, one end of the connecting bolt 9 is provided with a thread, and the other end is provided with a nut, and the end with the thread passes through the guide hole and is connected to the screw hole, and a reset spring is sleeved on the connecting bolt 9, and one end of the reset spring is against the nut of the connecting bolt 9. The other end is butted against the upper side of the upper press platform 7, and the connecting bolt 9 is slidably connected with the guide hole, so that the upper press platform 7 can move toward the direction close to the lower press platform 8 and fit with the lower press platform 8 under the action of the reset spring; an electromagnetic lifting device 10 is provided on the lower press platform 8, which has a retractable lifting rod. In the natural state, the lifting rod can lift the upper press platform 7 so that there is a distance between it and the lower press platform 8, and the electromagnetic lifting device 10 can be retracted under the action of the electromagnetic, so that the upper press platform 7 can be pressed tightly against the lower press platform 8 under the action of the reset spring. During use, when the wire rope is completely out of control, the electromagnetic lifting device 10 is energized to retract the lifting rod, and the upper pressure platform 7 is pressed down under the action of the reset spring, cooperating with the lower pressure platform 8 to clamp the wire rope, thereby preventing the wire rope from falling. In order to ensure the clamping effect, a guide groove is also correspondingly provided on the upper pressure platform 7, and its depth can be set to be smaller, and anti-slip grooves are provided in the guide grooves of the upper pressure platform 7 and the lower pressure platform 8. In this way, when the upper pressure platform 7 is pressed tightly on the lower pressure platform 8, the area enclosed by the two guide grooves is smaller than the diameter of the wire rope, thereby cooperating with the anti-slip grooves to further increase the friction between the wire rope and the guide groove, thereby improving the limiting effect on the wire rope.

[0019] The utility model is provided with a wheel set and a blocking device, so that during the installation of the elevator wire rope, the pressing force between the speed wheel and the wire rope can be adjusted according to the gravity of the wire rope, thereby increasing the friction force to increase the pulling force on the wire rope, thereby better limiting the lowering speed of the wire rope, assisting the installer to stably install the wire rope, and when the wire rope is out of control, the blocking device can completely limit the falling of the wire rope to ensure the safety of the installation. The utility model has a simple structure, is easy to use, and has higher safety.

[0020] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit the technical solution. Ordinary technicians in this field should understand that those modifications or equivalent replacements of the technical solution of the utility model without departing from the purpose and scope of the technical solution of the utility model should be included in the scope of the claims of the utility model.

Claims

1. An auxiliary protection device for installing an elevator wire rope, characterized in that: It comprises a rectangular box, on the two opposite side walls of the box there are horizontally provided with through holes through which the steel wire rope can pass; in the box, a guide platform, a first guide wheel, a speed wheel, a second guide wheel and a blocking device for limiting the movement of the steel wire rope are arranged in sequence from the through hole on one side to the through hole on the other side, the guide platform and the blocking device are both provided with guide grooves, the wheel surfaces of the first guide wheel, the speed wheel and the second guide wheel are provided with wheel grooves, the steel wire rope passes through the through hole on one side of the box, the guide groove of the guide platform, the upper wheel groove of the first guide wheel, the lower wheel groove of the speed wheel, the wheel groove of the second guide wheel and the guide groove of the blocking device in sequence, and then passes out from the through hole on the other side of the box; wherein, the speed wheel is slidably connected to the box so that it can change the clamping force with the steel wire rope.

2. The auxiliary protection device for installing an elevator wire rope according to claim 1, characterized in that: Slide holes are vertically opened on the two opposite side walls of the box corresponding to the speed wheel. One end of the rotating shaft of the speed wheel passes through the slide hole on one side and is connected to a lifting mechanism, and the other end is rotatably installed in the slide hole on the other side. The speed wheel can be moved up and down through the lifting mechanism.

3. The auxiliary protection device for installing an elevator wire rope according to claim 1, characterized in that: A rotation speed sensor is installed on the rotating shaft of the speed wheel.

4. The auxiliary protection device for installing an elevator wire rope according to claim 1, characterized in that: A set of limiting wheel groups are provided between the first guide wheel and the guide platform, and between the second guide wheel and the blocking device. The limiting wheel groups include two limiting wheels arranged opposite to each other up and down, and wheel grooves are provided on the wheel surfaces of the limiting wheels. The wheel grooves of the two limiting wheels are opposite to each other and form an enclosed area through which the wire rope can pass. The enclosed areas of the two sets of limiting wheel groups are respectively opposite to the guide grooves on the guide platform and the blocking device.

5. The auxiliary protection device for installing an elevator wire rope according to claim 1, characterized in that: The preventing device comprises an upper pressing platform and a lower pressing platform which are arranged relatively up and down, and a connecting bolt connecting the upper pressing platform and the lower pressing platform, wherein the lower pressing platform is fixedly connected to the box body, and a screw hole is opened on the upper side of the lower pressing platform, and a guide hole corresponding to the screw hole is opened on the upper pressing platform, one end of the connecting bolt is provided with a thread, and the other end is provided with a nut, and the end provided with the thread is connected with the screw hole after passing through the guide hole, and a return spring is sleeved on the connecting bolt, one end of the return spring is abutted against the nut of the connecting bolt, and the other end is abutted against the upper side of the upper pressing platform, and the connecting bolt is slidably matched with the guide hole, so that the upper pressing platform can move in a direction close to the lower pressing platform and fit the lower pressing platform under the action of the return spring; an electromagnetic lifting device is provided on the lower pressing platform, which has a retractable lifting rod, and in a natural state, the lifting rod can lift the upper pressing platform so that there is a distance between it and the lower pressing platform, and the electromagnetic lifting device can be retracted under the action of the electromagnetic, so that the upper pressing platform can be pressed tightly with the lower pressing platform under the action of the return spring.

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