Flying stone blocking and enclosing mechanism for open blasting

Abstract

The utility model relates to the technical field of open blasting, in particular to a flying stone blocking and enclosing mechanism for open blasting, which comprises an outer frame, piston retracting and pulling rods are fixedly connected to the inner ends of four corners of the outer frame, and buffer devices are connected to the tail ends of the piston retracting and pulling rods; buffer columns are fixedly connected to the inner ends of upper and lower bottom plates of the outer frame, elastic telescopic rods are fixedly connected to the upper and lower ends of the inner end faces of the buffer columns, center shafts are fixedly connected to the tail ends of the elastic telescopic rods, and blocking plates sleeve the two sides of each center shaft. The device has the advantages that by arranging the buffering device, when flying stones impact the barrier plate, the flying stone impact time can be prolonged through the buffering device, destructive force generated by flying stone impact on the barrier plate is reduced, meanwhile, due to the buffering device, vibration generated when the barrier plate is impacted by the flying stones is reduced, and the service life of the barrier plate is prolonged. And the looseness of the joint of the barrier plate caused by vibration is effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of open-air blasting, in particular to a flying stone blocking and protecting mechanism for open-air blasting. Background Art

[0002] Blasting is a technology that uses the compression, loosening, destruction, throwing and killing effects of explosives in the air, water, soil and rock media or objects to achieve the desired purpose. When explosive bags or charges explode in soil and rock media or structures, the soil and rock media or structures will be compressed, deformed, destroyed, loosened and thrown. It is mainly used in earthwork projects and the demolition of metal buildings and structures. During the blasting process, a lot of flying stones will appear, and flying stone blocking and enclosure mechanisms are needed.

[0003] Traditional flying rock blocking and maintenance mechanisms are usually rigidly fixed with a blocking plate, so that when the blocking plate blocks flying rocks, the destructive force of the flying rocks is completely borne by the blocking plate, causing the blocking plate to be severely worn. In addition, due to the rigid connection, a large vibration will be generated when hit by flying rocks, making the connection points of the blocking plate easier to loosen. Therefore, the utility model proposes a flying rock blocking and protection mechanism for open-air blasting to solve the above problems. Summary of the invention

[0004] The utility model aims to provide a flying rock blocking and protection mechanism for open-air blasting, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flying rock blocking and protection mechanism for open-air blasting, comprising an outer frame, wherein the inner ends of the outer frame are fixedly connected with piston retracting rods at the four corners, and the ends of the piston retracting rods are connected with buffer devices; the inner ends of the upper and lower bottom plates of the outer frame are fixedly connected with buffer columns, and the upper and lower ends of the inner end surfaces of the buffer columns are fixedly connected with elastic telescopic rods, and the ends of the elastic telescopic rods are fixedly connected with a central axis, and blocking plates are sleeved on both sides of the central axis.

[0006] Preferably, the buffer device comprises a rotating block, a rotating shaft in the rotating block is connected to a blocking plate, a blocking plate rotating groove is provided on the outer side of the blocking plate, a connecting rotating shaft is sleeved in the blocking plate rotating groove, and the connecting rotating shaft is fixedly connected to the inner end face of the rotating block.

[0007] Preferably, a sleeve rotating groove is formed at the outer end of the rotating block, a sleeve rotating shaft is sleeved in the sleeve rotating groove, and the sleeve rotating shaft is fixedly connected to the end of the piston retracting rod.

[0008] Preferably, the blocking plate is limitedly rotated sleeved on both sides of the central axis, and the blocking plate is limited in rotating outwards.

[0009] Preferably, the blocking plate rotation grooves are provided at the four corners of the blocking plate, and the height thereof corresponds to that of the piston retracting rod.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The utility model provides a buffer device, so that when flying stones hit the blocking plate, the impact time of the flying stones can be prolonged through the buffer device, and the destructive force of the flying stones on the blocking plate is reduced. At the same time, due to the buffer device, the vibration generated by the blocking plate when hit by the flying stones is reduced, and the loosening of the connection of the blocking plate due to the vibration is effectively prevented. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the rear side of the utility model;

[0014] Figure 3 for Figure 2 The enlarged schematic diagram at A in the middle;

[0015] Figure 4 It is a partial structural schematic diagram of the utility model;

[0016] Figure 5 This is a partial structural connection diagram of the utility model.

[0017] In the figure: 1 outer frame, 2 blocking plate, 3 central axis, 4 elastic telescopic rod, 5 buffer column, 6 piston retracting rod, 7 rotating block, 8 sleeve rotating groove, 9 connecting rotating shaft, 10 blocking plate rotating groove, 11 sleeve rotating shaft. DETAILED DESCRIPTION

[0018] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of 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.

[0019] In the description of the present utility model, it should be noted that the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are 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 operate in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "one", "first", "second", "third", "fourth", "fifth", "sixth" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] For the purpose of simplicity and illustration, the principles of the embodiments are mainly described by reference to examples. In the following description, many specific details are proposed to provide a thorough understanding of the embodiments. However, it is obvious that for those of ordinary skill in the art, these embodiments may not be limited to these specific details in practice. In some instances, known methods and structures are not described in detail to avoid making these embodiments unnecessarily difficult to understand. In addition, all embodiments can be used in combination with each other.

[0022] See also Figures 1 to 5 The utility model provides a technical solution: a flying stone blocking and protection mechanism for open-air blasting, comprising an outer frame 1, wherein the inner ends of the outer frame 1 are fixedly connected with piston retracting rods 6 at the four corners, and the ends of the piston retracting rods 6 are connected with buffer devices; the inner ends of the upper and lower bottom plates of the outer frame 1 are fixedly connected with buffer columns 5, and the upper and lower ends of the inner end surfaces of the buffer columns 5 are fixedly connected with elastic telescopic rods 4, and the ends of the elastic telescopic rods 4 are fixedly connected with a central axis 3, and blocking plates 2 are sleeved on both sides of the central axis 3, and the blocking plates 2 are limited and rotatably sleeved on both sides of the central axis 3, and the blocking plates 2 are limited in rotating outward, and the blocking plates 2 can rotate inward. At the same time, under the action of the elastic telescopic rods 4, the flying stones can be buffered when they hit the blocking plates 2.

[0023] The buffer device includes a rotating block 7, the rotating shaft inside the rotating block 7 is connected to the blocking plate 2, a blocking plate rotating groove 10 is opened on the outer side of the blocking plate 2, a connecting rotating shaft 9 is sleeved in the blocking plate rotating groove 10, and the connecting rotating shaft 9 is fixedly connected to the inner end face of the rotating block 7, a sleeve rotating groove 8 is opened at the outer end of the rotating block 7, a sleeve rotating groove 8 is sleeved in the sleeve rotating groove 8, and the sleeve rotating shaft 11 is fixedly connected to the end of the piston retracting rod 6. The blocking plate rotating groove 10 is opened at the four corners of the blocking plate 2, and the height corresponds to the piston retracting rod 6. When the flying stone hits the blocking plate 2, the blocking plate 2 shrinks around the central axis 3, driving the rotating blocks 7 on both sides to retract, and further realizing buffering under the action of the piston retracting rod 6.

[0024] In actual use, the inner ends of the upper and lower bottom plates of the outer frame 1 are fixedly connected with buffer columns 5, the upper and lower ends of the inner end surfaces of the buffer columns 5 are fixedly connected with elastic telescopic rods 4, the ends of the elastic telescopic rods 4 are fixedly connected with the central axis 3, and blocking plates 2 are sleeved on both sides of the central axis 3. The blocking plates 2 are limited and rotatable sleeved on both sides of the central axis 3, the blocking plates 2 are limited in rotation outward, and the blocking plates 2 can be rotated inward. At the same time, the elastic telescopic rods 4 Under the action of , the flying stones can be buffered when they hit the blocking plate 2. The inner rotating shaft of the rotating block 7 is connected to the blocking plate 2. A blocking plate rotating groove 10 is opened on the outer side of the blocking plate 2. A connecting rotating shaft 9 is sleeved in the blocking plate rotating groove 10. The connecting rotating shaft 9 is fixedly connected to the inner end face of the rotating block 7. A sleeve rotating groove 8 is opened at the outer end of the rotating block 7. A sleeve rotating groove 8 is sleeved in the sleeve rotating groove 8. The sleeve rotating shaft 11 is fixedly connected to the end of the piston retracting rod 6. The blocking plate rotating groove 10 is opened at the four corners of the blocking plate 2, and the height corresponds to the piston retracting rod 6. When the flying stones hit the blocking plate 2, the blocking plate 2 shrinks around the central axis 3, driving the rotating blocks 7 on both sides to retract, and further achieving buffering under the action of the piston retracting rod 6.

[0025] 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 variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flying rock blocking enclosure mechanism for open-air blasting, characterized in that: include An outer frame (1), wherein the inner ends of the four corners of the outer frame (1) are fixedly connected to piston retracting rods (6), and the ends of the piston retracting rods (6) are connected to buffer devices; The inner ends of the upper and lower bottom plates of the outer frame (1) are fixedly connected with buffer columns (5), the upper and lower ends of the inner end surfaces of the buffer columns (5) are fixedly connected with elastic telescopic rods (4), the ends of the elastic telescopic rods (4) are fixedly connected with a central axis (3), and blocking plates (2) are sleeved on both sides of the central axis (3).

2. The flying rock blocking enclosure mechanism for open-air blasting according to claim 1 is characterized in that: The buffer device comprises a rotating block (7), the internal rotating shaft of the rotating block (7) is connected to a blocking plate (2), the outer side of the blocking plate (2) is provided with a blocking plate rotating groove (10), the blocking plate rotating groove (10) is sleeved with a connecting rotating shaft (9), and the connecting rotating shaft (9) is fixedly connected to the inner end surface of the rotating block (7).

3. The flying rock blocking enclosure mechanism for open-air blasting according to claim 2 is characterized in that: The outer end of the rotating block (7) is provided with a sleeve rotating groove (8), a sleeve rotating shaft (11) is sleeved in the sleeve rotating groove (8), and the sleeve rotating shaft (11) is fixedly connected to the end of the piston retracting rod (6).

4. The flying rock blocking enclosure mechanism for open-air blasting according to claim 1 is characterized by: The blocking plate (2) is limitedly rotatably sleeved on both sides of the central axis (3), and the blocking plate (2) is limited in its outward rotation.

5. The flying rock blocking enclosure mechanism for open-air blasting according to claim 2, characterized in that: The blocking plate rotation grooves (10) are provided at the four corners of the blocking plate (2) and have a height corresponding to that of the piston retracting rod (6).

Images