Box-type vertical counter weight tensioning anti-falling device

Abstract

The utility model relates to the technical field of box body anti-falling devices, in particular to a box type vertical counter weight tensioning anti-falling device which comprises a supporting assembly and a clamping assembly, the supporting assembly comprises counter weight boxes, supporting frames and supporting shafts, the supporting frames are connected with the supporting shafts in a sliding mode, the supporting frames are connected with the counter weight boxes, and the clamping assembly is connected with the counter weight boxes. The clamping assembly comprises an adapter plate and eccentric wheels, the adapter plate is rotationally connected with a plurality of rotating wheels, the circumferential outer walls of the rotating wheels make contact with the supporting shaft, the eccentric wheels are rotationally arranged on the adapter plate, the circumferential outer walls of the eccentric wheels make contact with the supporting shaft, the eccentric wheels are connected with a plurality of rotating connecting rods, and the rotating connecting rods are rotationally connected with the heavy hammer box. The anti-falling device has the advantages that the anti-falling braking effect of the heavy hammer box after the belt of the conveyor is broken is achieved, the situation that personnel and equipment are damaged due to falling is effectively controlled, the braking effect is improved, and the use safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of box anti-falling devices, in particular to a box-type vertical weight tensioning anti-falling device. Background Art

[0002] In the process of transporting objects and lifting people, it is often necessary to use a lifting box. The box slides on the supporting column to effectively guide the box. The box is often lifted and transferred with a lifting wire rope or belt. In the process of transportation, the breakage of the lifting belt or wire rope will cause the box to fall directly, which will cause damage to the transported objects or personnel after falling from a height. Manual braking is not conducive to timely braking, which affects the braking effect of the braking point. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the utility model provides a box-type vertical weight tensioning anti-falling device, which has the characteristics of realizing the braking effect of the weight box falling due to the breakage of the conveyor belt, effectively controlling the damage to personnel and equipment caused by the fall, improving the braking effect, and improving the safety of use.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a box-type vertical weight tensioning anti-falling device, comprising a supporting assembly and a clamping assembly;

[0007] The support assembly includes a weight box, a support frame and a support shaft, a plurality of support frames and a plurality of support shafts are slidably connected, and a plurality of weight boxes are connected to the support frame;

[0008] The clamping assembly includes an adapter plate and an eccentric wheel. A plurality of rotating wheels are rotatably connected to the adapter plate. The circumferential outer walls of the rotating wheels are in contact with the support shaft. A plurality of eccentric wheels are rotatably arranged on the adapter plate. The circumferential outer walls of the eccentric wheels are in contact with the support shaft. The eccentric wheel is connected to a plurality of rotating connecting rods. The rotating connecting rods are rotatably connected to the weight box.

[0009] Preferably, the clamping assembly also includes sensors, alarms and safety clamps, the support frame is connected to a number of sensors, the support frame is connected to a number of alarms, the sensors and alarms are electrically connected, a number of safety clamps are connected to the weight box, and the output end of the safety clamps can clamp the support shaft.

[0010] Preferably, the support assembly also includes a roller, a seat bearing, a lifting seat and a top cover. A top cover is arranged on the upper side of the support frame, and the top cover is pointed. Several lifting seats are connected to both sides of the support frame, and several seat bearings are connected to the lifting seats. The roller and the seat bearing are rotatably connected.

[0011] Preferably, the clamping assembly also includes a positioning block, which is connected to the weight box, the cross-section of the positioning block is U-shaped, the positioning block is rotatably connected to the rotating connecting rod, the rotating connecting rod is provided with a long hole, and the positioning block is provided with a shaft that can be inserted into the long hole.

[0012] Preferably, the circumferential outer wall of the adapter plate is provided with an annular groove corresponding to the support shaft.

[0013] Preferably, eccentric wheels are provided on both sides of the support shaft.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a box-type vertical weight tensioning anti-falling device, which has the following beneficial effects:

[0016] The box-type vertical weight tensioning anti-falling device effectively guides the moving position of the support frame through the cooperation between the rotating wheel and the supporting shaft. When the speed does not change, the eccentric wheel slides on the supporting shaft, the rotating wheel rolls on the supporting shaft, and the eccentric wheel and the supporting shaft cooperate. When the speed of the support frame changes and vertically descends, the speed changes due to the influence of acceleration, so that instantaneous acceleration is generated between the eccentric wheel and the supporting shaft. The rotating connecting rod can instantly drive the eccentric wheel to press the supporting shaft, thereby increasing the friction between the eccentric wheel and the supporting shaft. By utilizing the principle of speed difference, when a heavy box body free falls, the eccentric wheel can be used to instantly press the supporting shaft, thereby achieving a braking effect when the weight box falls due to a broken conveyor belt, effectively controlling the damage to personnel and equipment caused by the fall, improving the braking effect, and improving the safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a left-side structural schematic diagram of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the support shaft, eccentric wheel and rotating connecting rod in the utility model.

[0020] Markings in the attached figure: 1. weight box; 2. support frame; 3. support shaft; 4. adapter plate; 5. roller; 6. sensor; 7. alarm; 8. eccentric wheel; 9. positioning block; 10. safety clamp; 11. bearing with seat; 12. lifting seat; 13. top cover; 14. rotating wheel; 15. rotating connecting rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example:

[0023] See also Figure 1-3 , a box-type vertical weight tensioning anti-falling device, including a supporting assembly and a clamping assembly.

[0024] The support assembly comprises a weight box 1, a support frame 2 and a support shaft 3. A plurality of support frames 2 and a plurality of support shafts 3 are slidably connected, and a plurality of weight boxes 1 are connected to the support frame 2.

[0025] The clamping assembly includes an adapter plate 4 and an eccentric wheel 8, a plurality of rotating wheels 14 are rotatably connected to the adapter plate 4, the circumferential outer wall of the rotating wheel 14 is in contact with the support shaft 3, a plurality of eccentric wheels 8 are rotatably connected to the adapter plate 4, the circumferential outer wall of the eccentric wheel 8 is in contact with the support shaft 3, the eccentric wheel 8 is connected to a plurality of rotating connecting rods 15, the rotating connecting rod 15 is rotatably connected to the weight box 1, the rotating connecting rod 15 and the weight box 1 are preferably rotatably connected through an axis, preferably, the eccentric axis of the eccentric wheel 8 is located at the lower side of the center of the eccentric wheel 8, the weight box 1 is a welded frame box, which has a large weight, and is effectively guided to the moving position of the support frame 2 through the cooperation between the rotating wheel 14 and the support shaft 3, and when the speed does not change, the eccentric wheel 8 is in The wheel 14 slides on the support shaft 3, and the rotating wheel 14 rolls on the support shaft 3. The eccentric wheel 8 and the support shaft 3 cooperate with each other. When the speed of the support frame 2 changes and vertically descends, the speed changes due to the influence of acceleration, so that the eccentric wheel 8 has an instantaneous acceleration relative to the support shaft 3. The rotating connecting rod 15 can instantly drive the eccentric wheel 8 to press the support shaft 3, so that the friction between the eccentric wheel 8 and the support shaft 3 increases. By utilizing the principle of speed difference, when a heavy box body free falls, the eccentric wheel 8 can be used to instantly press the support shaft 3, so as to achieve the braking effect of the heavy hammer box 1 after the conveyor belt breaks, effectively control the damage to personnel and equipment caused by the fall, improve the braking effect, and improve the safety of use.

[0026] The clamping assembly also includes a sensor 6, an alarm 7 and a safety clamp 10. The support frame 2 is connected to a plurality of sensors 6, the support frame 2 is connected to a plurality of alarms 7, the sensor 6 and the alarm 7 are electrically connected, and a plurality of safety clamps 10 are connected to the weight box 1. The output end of the safety clamp 10 can clamp the support shaft 3, and the input end of the sensor 6 is directly opposite to the support shaft 3. During the movement of the support frame 2, the sensor 6 can be driven to move, so that the sensor 6 and the support shaft 3 move relative to each other, so that the sensor 6 can detect the moving distance and speed. The sensor 6 is a speed sensor 6 or an optical fiber sensor 6. The sensor 6 can be electrically connected to the trigger end of the alarm 7, or the sensor 6 is electrically connected to the controller that controls the alarm 7 and the safety clamp 10. When the speed is high or the instantaneous speed change is large, the alarm 7 will be triggered to sound an alarm and the safety clamp 10 will clamp the support shaft 3. The safety clamp 10 is a common component on the elevator, such as the safety clamp 10 of QJB2500. A switch for controlling the opening and closing of the safety clamp 10 can be set inside or outside the weight box 1. When maintenance is carried out and timely braking is required, the safety clamp 10 can be manually clamped to the support shaft 3 through the switch. The alarm 7 is preferably an audible and visual alarm 7. The relative speed between the support frame 2 and the support shaft 3 is detected by the sensor 6. When the speed is high or the speed changes greatly, the alarm 7 will be triggered to sound an alarm and the support shaft 3 will be clamped by the safety clamp 10, thereby further improving the safety effect of use.

[0027] The support assembly also includes a roller 5, a bearing seat 11, a lifting seat 12 and a top cover 13. A top cover 13 is arranged on the upper side of the support frame 2, and the top cover 13 is pointed. A number of lifting seats 12 are connected to both sides of the support frame 2, and a number of bearing seats 11 are connected to the lifting seats 12. The roller 5 and the bearing seat 11 are rotatably connected. The sensor 6 and the alarm 7 are both installed on the top cover 13. A belt is connected to the roller 5. The roller 5 can be a head component at one end of the conveyor, or a cavity is arranged on the roller 5. Through the arrangement of the roller 5, part of the transmitted object can be transmitted through the roller 5, and the material can be transferred by rotating the roller 5. Through the arrangement of the bearing seat 11 and the lifting seat 12, the roller 5 can be conveniently lifted, which is conducive to driving the roller 5 to rotate.

[0028] The clamping assembly also includes a positioning block 9, which is connected to the weight box 1. The cross-section of the positioning block 9 is U-shaped. The positioning block 9 is rotatably connected to the rotating connecting rod 15. The rotating connecting rod 15 is provided with a long hole, and the positioning block 9 is provided with an axis that can be inserted into the long hole. The positioning block 9 and the weight box 1 are preferably connected by bolts, and the positioning block 9 and the rotating connecting rod 15 are preferably rotatably connected by a pin shaft. Through the setting of the positioning block 9, a plurality of rotating connecting rods 15 can be installed inside the positioning block 9, and the rotating connecting rods 15 are connected by the side walls of the rotating connecting rods 15, so as to effectively position the plurality of rotating connecting rods 15.

[0029] The circumferential outer wall of the adapter plate 4 is provided with an annular groove corresponding to the support shaft 3. The setting of the annular groove is conducive to guiding the moving position of the weight box 1 and the support frame 2, thereby reducing the position deviation of the weight box 1 and the support frame 2.

[0030] Eccentric wheels 8 are provided on both sides of the support shaft 3. By providing eccentric wheels 8 on both sides of the support shaft 3, the matching effect between the eccentric wheels 8 and the support shaft 3 is further improved, and the position deviation of the support frame 2 is reduced.

[0031] It should be noted that the phrases "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include certain features, structures or characteristics, but not every embodiment may include the certain features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing certain features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments, whether explicitly or not explicitly described.

[0032] It should be easily understood that “on,” “above,” and “over” in the present disclosure should be interpreted in the broadest manner, so that “on” not only means “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” not only includes the meaning of “above” or “over,” but also may include the meaning of “above” or “over something” with no intervening features or layers therebetween (i.e., directly on something).

[0033] In addition, spatially relative terms, such as "below," "below," "beneath," "above," "above," etc., may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein may likewise be interpreted accordingly.

[0034] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A box-type vertical weight tensioning anti-falling device, characterized in that: It includes a supporting assembly and a clamping assembly; The support assembly comprises a weight box (1), a support frame (2) and a support shaft (3); a plurality of support frames (2) and a plurality of support shafts (3) are slidably connected, and a plurality of weight boxes (1) are connected to the support frame (2); The clamping assembly comprises an adapter plate (4) and an eccentric wheel (8); a plurality of rotating wheels (14) are rotatably connected to the adapter plate (4); the circumferential outer wall of the rotating wheel (14) contacts the support shaft (3); a plurality of eccentric wheels (8) are rotatably connected to the adapter plate (4); the circumferential outer wall of the eccentric wheel (8) contacts the support shaft (3); the eccentric wheel (8) is connected to a plurality of rotating connecting rods (15); and the rotating connecting rods (15) are rotatably connected to the weight box (1).

2. A box-type vertical weight tensioning anti-falling device according to claim 1, characterized in that: The clamping assembly further comprises a sensor (6), an alarm (7) and a safety clamp (10); the support frame (2) is connected to a plurality of sensors (6); the support frame (2) is connected to a plurality of alarms (7); the sensor (6) and the alarm (7) are electrically connected; a plurality of safety clamps (10) are connected to the weight box (1); and the output end of the safety clamp (10) is capable of clamping the support shaft (3).

3. A box-type vertical weight tensioning anti-falling device according to claim 1, characterized in that: The support assembly further comprises a roller (5), a bearing seat (11), a hanging seat (12) and a top cover (13); a top cover (13) is arranged on the upper side of the support frame (2); the top cover (13) is in a pointed shape; a plurality of hanging seats (12) are connected to both sides of the support frame (2); a plurality of bearing seats (11) are connected to the hanging seats (12); and the roller (5) and the bearing seat (11) are rotatably connected.

4. A box-type vertical weight tensioning anti-falling device according to claim 1, characterized in that: The clamping assembly further comprises a positioning block (9), the positioning block (9) is connected to the weight box (1), the cross section of the positioning block (9) is U-shaped, the positioning block (9) is rotatably connected to a rotating connecting rod (15), the rotating connecting rod (15) is provided with an elongated hole, and the positioning block (9) is provided with a shaft capable of being inserted into the elongated hole.

5. The box-type vertical weight tensioning anti-falling device according to claim 1 is characterized in that: The circumferential outer wall of the adapter plate (4) is provided with an annular groove corresponding to the support shaft (3).

6. A box-type vertical weight tensioning anti-falling device according to claim 1, characterized in that: Eccentric wheels (8) are arranged on both sides of the support shaft (3).

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