Counterweight rope breakage anti-falling safety device for construction hoist

Abstract

The utility model relates to the technical field of construction hoists, and particularly discloses a construction hoist counterweight rope breaking anti-falling safety device which comprises a counterweight frame, a counterweight rope breaking safety device and a counterweight rope breaking safety device. Push bolt supports are symmetrically arranged on the two sides of the upper end of the counterweight frame and detachably connected with the counterweight frame, anti-falling hanging plates are rotationally arranged in the push bolt supports, U-shaped anti-falling hanging bolts are arranged at the ends of the anti-falling hanging plates, tension springs are arranged at one ends of the anti-falling hanging plates, and the lower ends of the tension springs are connected with the counterweight frame. When the steel wire rope is broken, the tension spring instantly connected with the anti-falling hanging plate shrinks and resets, then the U-shaped anti-falling hanging bolt is driven to rotate to the horizontal position from the horizontal included angle of 45 degrees to the lower plane with the rotating pin shaft as the fulcrum and then abut against the upper supporting pin shaft, the U-shaped anti-falling hanging bolt can be hung on the standard knot square frame, and the upper supporting pin shaft can limit the anti-falling hanging plate. And the U-shaped anti-falling hanging bolt is stably hung on the standard knot square frame, so that the anti-falling protection of the heavy broken rope is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of construction hoists, in particular to a counterweight rope-breaking anti-falling safety device for a construction hoist. Background Art

[0002] With the development of national construction, the use of construction hoists for high-altitude operations is becoming more and more widespread. Therefore, relevant national departments have higher safety requirements for various construction hoists, and strictly require manufacturers to pay more attention to safety and practicability in the product design and manufacturing process.

[0003] At present, there are many manufacturers specializing in the manufacture of construction hoists in China (with the qualification of special manufacturing equipment license), but no manufacturer has yet manufactured a reliable rope-breaking anti-falling safety device. The lack of this reliable technology means that some devices manufactured by manufacturers are only used as a supporting role to cope with the inspections of the special management departments in this industry and have no practicality in construction operations. Especially for the traction type (traction wheel and traction rope drive) where the friction between the traction rope and the wire rope drives the cage and the counterweight to move up and down, a reliable rope-breaking anti-falling device must be provided for the wire rope in case of rope breakage. Otherwise, if the transmission wire rope is worn and not replaced in time during construction operations, the wire rope may break instantly, resulting in the fall of the counterweight or the cage, and a safety accident will occur at the construction site.

[0004] Therefore, in view of the above-described technical problems, a counterweight rope-breaking anti-falling safety device for a construction hoist is urgently needed. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to overcome the above-mentioned technical defects and design a counterweight rope-breaking anti-falling safety device for a construction hoist.

[0006] To solve the above technical problems, the technical solution of the utility model is a counterweight rope-breaking anti-falling safety device for a construction hoist, including:

[0007] A counterweight frame;

[0008] On both sides of the upper end of the counterweight frame, push bolt supports are symmetrically arranged. The push bolt supports are connected to the counterweight frame in a detachable manner. An anti-falling hanging plate is rotatably arranged in the push bolt support. A U-shaped anti-falling hanging bolt is arranged at the end of the anti-falling hanging plate. A tension spring is arranged at one end of the anti-falling hanging plate. The lower end of the tension spring is connected to the counterweight frame. An upper support pin shaft is arranged on the push bolt support and cooperates with the anti-falling hanging plate. A lower support pin shaft is arranged obliquely below the upper support pin shaft on the push bolt support and cooperates with the anti-falling hanging plate.

[0009] As an improvement, a pin hole penetrating the push bolt support is arranged on the push bolt support, and a rotating pin shaft is arranged in the pin hole. The anti-falling hanging plate is rotatably connected to the rotating pin shaft.

[0010] As an improvement, guide pulleys for the counterweight frame are symmetrically arranged at both the upper and lower ends of one side of the counterweight frame.

[0011] As an improvement, a plurality of counterweight blocks are arranged inside the counterweight frame.

[0012] The advantages of the present utility model compared with the prior art are as follows: push bolt supports are symmetrically arranged on both sides of the upper end of the counterweight frame, and the push bolt supports are connected to the counterweight frame in a detachable manner. An anti-falling hanging plate is rotatably arranged inside the push bolt support. A U-shaped anti-falling hanging bolt is arranged at the end of the anti-falling hanging plate. A tension spring is arranged at one end of the anti-falling hanging plate, and the lower end of the tension spring is connected to the counterweight frame. An upper support pin shaft is arranged on the push bolt support, and the upper support pin shaft cooperates with the anti-falling hanging plate. A lower support pin shaft is arranged obliquely below the upper support pin shaft on the push bolt support, and the lower support pin shaft cooperates with the anti-falling hanging plate. In this way, the steel wire rope is fixed to one end of the anti-falling hanging plate, and the anti-falling safety device is pulled up and down by a winch. When the steel wire rope breaks, the counterweight falls freely downward. Instantly, the tension spring connecting the anti-falling hanging plate will contract and reset, thereby driving the U-shaped anti-falling hanging bolt to rotate from a horizontal angle of 45° to a horizontal position with the rotating pin shaft as the fulcrum, and then abut against the upper support pin shaft. The U-shaped anti-falling hanging bolt will hang on the standard section square frame, and the upper support pin shaft will form a limit on the anti-falling hanging plate to ensure that the U-shaped anti-falling hanging bolt is firmly hung on the standard section square frame. In this way, the anti-falling protection for the counterweight rope breakage is completed; it plays an important role in protecting against falling, and prevents the occurrence of safety accidents for people and equipment during construction operations. Description of the Drawings

[0013] Figure 1 is the front view of an anti-falling safety device for a counterweight rope breakage of a construction hoist of the present utility model

[0014] Figure 2 is the three-dimensional structure schematic diagram of an anti-falling safety device for a counterweight rope breakage of a construction hoist of the present utility model.

[0015] Figure 3 is the reference diagram of the use state when the rope of an anti-falling safety device for a counterweight rope breakage of a construction hoist of the present utility model breaks.

[0016] Figure 4 is the reference diagram of the horizontal state of the anti-falling hanging plate of an anti-falling safety device for a counterweight rope breakage of a construction hoist of the present utility model.

[0017] Figure 5 is Figure 4 the partial enlarged view at A in

[0018] As shown in the figure:

[0019] 100. Counterweight frame, 101. Bolt-pushing support, 102. Anti-falling hanging plate, 103. U-shaped anti-falling hanging bolt, 104. Tension spring, 105. Upper support pin shaft, 106. Lower support pin shaft, 107. Hanging hole, 108. Hanging ring, 109. Pin hole, 110. Rotating pin shaft, 111. Bracket, 112. Counterweight frame guide pulley, 113. Counterweight, 114. Connecting hole. Detailed implementation mode

[0020] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. The components of the embodiments of the present utility model described and illustrated herein can be arranged and designed in various different configurations.

[0021] Combined with the attached Figures 1-5 , a safety device for preventing the falling of a counterweight with a broken rope in a construction hoist, comprising:

[0022] Counterweight frame 100;

[0023] On both sides of the upper end of the counterweight frame 100, bolt-pushing supports 101 are symmetrically provided. The bolt-pushing supports 101 are connected to the counterweight frame 100 in a detachable manner. An anti-falling hanging plate 102 is rotatably provided in the bolt-pushing support 101. A U-shaped anti-falling hanging bolt 103 is provided at the end of the anti-falling hanging plate 102. A tension spring 104 is provided at one end of the anti-falling hanging plate 102. The lower end of the tension spring 104 is connected to the counterweight frame 100 to provide a reset pulling force for the anti-falling hanging plate 102. An upper support pin shaft 105 is provided on the bolt-pushing support 101. The upper support pin shaft 105 cooperates with the anti-falling hanging plate 102 and is used to limit the rotation of the U-shaped anti-falling hanging bolt 103 when the anti-falling hanging plate 102 is in a horizontal state. Below the upper support pin shaft 105 on the bolt-pushing support 101, a lower support pin shaft 106 is provided. The lower support pin shaft 106 cooperates with the anti-falling hanging plate 102 and is used to limit the rotation of the anti-falling hanging bolt 103 when the anti-falling hanging plate 102 is in an inclined state, so that the counterweight frame 100 can be driven to move up and down by pulling the anti-falling hanging bolt 103 through a steel wire rope.

[0024] One end of the anti-falling hanging plate 102 is provided with a hanging hole 107, and one end of the tension spring 104 is hung in the hanging hole 107; a connecting hole 114 is provided on the anti-falling hanging plate 102 for connecting with a steel wire rope.

[0025] Hanging rings 108 are symmetrically provided at the upper end of the counterweight frame 100. The hanging rings 108 are located on one side of the bolt-pushing support 101. The other end of the tension spring 104 is hung on the hanging ring 108.

[0026] The bolt-pushing support 101 is provided with a pin hole 109 penetrating through the bolt-pushing support 101. A rotating pin shaft 110 is arranged in the pin hole 109, and the anti-falling hanging plate 102 is rotatably connected to the rotating pin shaft 110.

[0027] The upper end of the counterweight frame 100 is symmetrically provided with supports 111, and the bolt-pushing support 101 is connected to the supports 111 by bolts.

[0028] Both the upper and lower ends on one side of the counterweight frame 100 are symmetrically provided with counterweight frame guide pulleys 112 for guiding the movement of the counterweight frame 100 to ensure the smooth operation of the counterweight system.

[0029] A plurality of counterweight blocks 113 are arranged in the counterweight frame 100 to balance the weight of the construction elevator cage and the carried heavy objects and ensure the stability of the whole machine operation.

[0030] When the present utility model is specifically implemented,

[0031] When the steel wire rope fixed in the connection hole 115 on the anti-falling hanging plate 102 breaks, the counterweight frame 100 begins to fall due to the loss of the pulling force of the steel wire rope. At this time, since there is no pulling force of the steel wire rope on the anti-falling hanging plate 102, the tension spring 104 will contract and reset. The anti-falling hanging plate 102 quickly rotates around the rotating pin shaft 110 under the action of the tension spring 104 until the anti-falling hanging plate 102 contacts and is blocked by the upper support pin shaft 105. At this time, the anti-falling hanging plate 102 rotates from the inclined 45° position to the horizontal position. During the falling process, the U-shaped anti-falling hanging bolt 103 will hang on the standard section square frame, thereby preventing the counterweight frame 100 from falling; that is, the anti-falling protection for the counterweight in case of steel wire rope breakage is completed.

[0032] In the description of the embodiments of the present utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this utility model is usually placed during use, it is only for the convenience of describing the present utility model 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 to the present utility model. In addition, terms such as "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0033] In addition, if terms such as "horizontal", "vertical", "hanging" do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0034] In the description of the embodiments of the present utility model, "a plurality of" represents at least two.

[0035] In the description of the embodiments of the present utility model, it should also be noted that unless otherwise clearly specified and limited, if the terms "set", "installed", "connected", "connected" are used, they 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0036] The above describes the present utility model and its embodiments. Such a description is not restrictive. What is shown in the drawings is only one of the embodiments of the present utility model, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and design similar structural forms and embodiments without creative work without departing from the purpose of the creation of the present utility model, they shall fall within the protection scope of the present utility model.

Claims

1. A construction hoist counterweight rope breaking anti-fall safety device, characterized in that: include: Counterweight frame (100); Both sides of the upper end of the counterweight frame (100) are symmetrically provided with push bolt supports (101), and the push bolt supports (101) are connected to the counterweight frame (100) in a detachable manner. An anti-falling hanging plate (102) is rotatably provided in the push bolt support (101), and a U-shaped anti-falling hanging bolt (103) is provided at the end of the anti-falling hanging plate (102). A tension spring (104) is provided at one end of the anti-falling hanging plate (102), and the lower end of the tension spring (104) is connected to the counterweight frame (100). An upper support pin (105) is provided on the push bolt support (101), and the upper support pin (105) cooperates with the anti-falling hanging plate (102). A lower support pin (106) is provided obliquely below the upper support pin (105) on the push bolt support (101), and the lower support pin (106) cooperates with the anti-falling hanging plate (102).

2. A construction hoist counterweight rope breaking anti-fall safety device according to claim 1, characterized in that: One end of the anti-fall hanging plate (102) is provided with a hanging hole (107), and one end of the tension spring (104) is hung in the hanging hole (107); A hanging ring (108) is symmetrically provided at the upper end of the counterweight frame (100), and the hanging ring (108) is located on one side of the push bolt support (101), and the other end of the tension spring (104) is hung on the hanging ring (108).

3. The construction hoist counterweight rope breaking anti-fall safety device according to claim 1 is characterized by: The push bolt support (101) is provided with a pin hole (109) penetrating the push bolt support (101), a rotating pin shaft (110) is provided in the pin hole (109), and the anti-fall hanging plate (102) and the rotating pin shaft (110) are rotatably connected.

4. The construction hoist counterweight rope breaking anti-fall safety device according to claim 1, characterized in that: A bracket (111) is symmetrically arranged on the upper end of the counterweight frame (100), and the push bolt support (101) is connected to the bracket (111) via bolts.

5. The construction hoist counterweight rope breaking anti-fall safety device according to claim 1, characterized in that: Counterweight frame guide pulleys (112) are symmetrically provided at the upper and lower ends of one side of the counterweight frame (100).

6. The construction hoist counterweight rope breaking anti-fall safety device according to claim 1, characterized in that: A plurality of counterweight blocks (113) are arranged in the counterweight frame (100).

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