CN214120952U

CN214120952U - Be applied to air spacer of limestone mine blasting usefulness

Info

Publication number: CN214120952U
Application number: CN202023119650.8U
Authority: CN
Inventors: 朱君; 杜绍武; 徐立国; 张君路
Original assignee: Jilin Yatai Cement Co ltd
Current assignee: Jilin Yatai Cement Co ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-09-03
Anticipated expiration: 2030-12-23

Abstract

The utility model discloses an air spacer applied to limestone mine blasting; comprises a piston cylinder and a soft shell; the lower end of the piston cylinder is positioned in the soft shell, the soft shell is fixedly connected with the piston cylinder, a baffle is fixed in the piston cylinder, a circular piston is arranged below the baffle, a first spring is arranged below the circular piston, the first spring is fixedly connected with the bottom of the piston cylinder, and vent holes are formed in the lower part of the baffle, the left side wall and the right side wall of the piston cylinder and the bottom of the piston cylinder; an air inlet pipe is further arranged above the baffle plate, second connecting rods are fixed to the left side and the right side of the air inlet pipe, and the second connecting rods are fixedly connected with the baffle plate through second springs; this device is ventilated to the inside of soft shell through the intake pipe, finishes the back in the same period, under the effort of first spring, the bottom of circular piston and baffle is closely laminated, and the intake pipe resets under the effort of second spring, has played fine sealed effect to the device, easy operation, and work efficiency is high.

Description

Be applied to air spacer of limestone mine blasting usefulness

Technical Field

The utility model relates to a blasting field device specifically is an air space device for limestone mine blasting usefulness.

Background

The existing open blasting mostly adopts the air spacer spaced charging, the air spacer charging can increase the action time of blasting stress waves, reduce the peak pressure of shock waves on the wall of a blasting hole, improve the blasting effect and reduce the blasting cost, and the method is widely applied to the step blasting of medium and deep blasting holes; at present, the air spacer of air adopts the gasbag more, and its unit price is high, complex operation, uses at every turn and must aerify the gasbag, has reduced charge efficiency.

On the basis, the Chinese patent publication No. CN209978745U discloses an air spacer, which comprises a tube body and a blocking piece, wherein the outer diameter of the tube body is slightly smaller than the inner diameter of a blast hole, the tube body is hollow, the side wall of the tube body is sealed, the upper end and the lower end of the tube body are both sealed by the blocking piece, and the tube body is made of hard materials; the air spacer provided by the utility model does not need to be inflated when in use, is simple to operate and has high working efficiency; however, the inner pipe and the outer pipe of the device are connected in a threaded mode, the sealing effect is poor, and the air leakage phenomenon is easy to occur.

Disclosure of Invention

An object of the utility model is to provide a be applied to air space device of limestone mine blasting usefulness to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

an air spacer applied to limestone mine blasting comprises a piston cylinder and a soft shell; the lower end of the piston cylinder is positioned in the soft shell, the soft shell is fixedly connected with the piston cylinder, a baffle is fixed in the piston cylinder, a circular piston is arranged below the baffle, the circular piston is tightly attached to the piston cylinder and is in sliding connection with the piston cylinder, a first connecting rod is fixed at the bottom of the circular piston, a first spring is arranged at the bottom of the first connecting rod and is fixedly connected with the bottom of the piston cylinder, and vent holes are formed in the lower part of the baffle, the left side wall and the right side wall of the piston cylinder and the bottom of the piston cylinder; an air inlet pipe is further arranged above the baffle plate, penetrates through the baffle plate and is in sliding connection with the baffle plate, and a plurality of air inlet holes are formed in the lower end of the air inlet pipe; the upper end of the air inlet pipe penetrates through the top of the piston cylinder and is in sliding connection with the piston cylinder, second connecting rods are fixed to the left side and the right side of the air inlet pipe, second springs are fixed to the bottoms of the second connecting rods, and the bottoms of the second springs are fixedly connected with the upper surface of the baffle.

As the preferred scheme of the utility model: and a sealing sleeve is arranged at the connecting part of the piston cylinder and the soft shell.

As a further preferred embodiment of the present invention: and a sealing ring is arranged at the position where the air inlet pipe is connected with the baffle.

As a further preferred embodiment of the present invention: and side plates are further arranged at two ends of the second connecting rod and are tightly attached to the piston cylinder and are in sliding connection with the piston cylinder.

As a further preferred embodiment of the present invention: the inside of first connecting rod is hollow state, the below of first connecting rod, the outside of first spring are equipped with the hollow tube, the lower extreme of first connecting rod runs through the top of hollow tube, the bottom of first connecting rod still is equipped with the arch, first connecting rod passes through arch and first spring fixed connection, the inside of first spring still runs through there is the gag lever post, the gag lever post still runs through the bottom of arch and first connecting rod and rather than sliding connection, the top of gag lever post and the top fixed connection of hollow tube, the bottom of gag lever post and the bottom fixed connection of piston cylinder.

Compared with the prior art, the beneficial effects of the utility model are that: this device is ventilated to the inside of soft shell through the intake pipe, finishes the back in the same period, under the effort of first spring, the bottom of circular piston and baffle is closely laminated, and the intake pipe resets under the effort of second spring, has played fine sealed effect to the device, and it is very convenient to aerify, easy operation, and work efficiency is high, and the cooperation of circular piston and baffle makes it have fine sealed effect, is difficult for producing gas leakage phenomenon.

Drawings

Fig. 1 is a front view showing an overall structure of an air spacer for use in blasting a limestone mine.

Fig. 2 is an enlarged view of an air spacer applied to limestone mine blasting at a point a in fig. 1.

Fig. 3 is a front view showing an internal structure of a hollow tube of an air spacer applied to blasting of a limestone mine.

In the figure: 1-soft shell, 2-piston cylinder, 3-vent hole, 4-hollow tube, 5-air inlet pipe, 6-second connecting rod, 7-side plate, 8-air inlet hole, 9-sealing ring, 10-round piston, 11-sealing sleeve, 12-second spring, 13-first connecting rod, 14-bulge, 15-first spring, 16-limiting rod and 17-baffle.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1-3, in an embodiment of the present invention, an air spacer for limestone mine blasting includes a piston cylinder 2 and a soft shell 1; the lower end of the piston cylinder 2 is positioned in the soft shell 1, the soft shell 1 is fixedly connected with the piston cylinder 2, a sealing sleeve 11 is arranged at the connecting part of the piston cylinder 2 and the soft shell 1, a baffle 17 is fixed in the piston cylinder 2, a round piston 10 is arranged below the baffle 17, the round piston 10 is tightly attached to the piston cylinder 2 and is in sliding connection with the piston cylinder, a first connecting rod 13 is fixed at the bottom of the round piston 10, a first spring 15 is arranged at the bottom of the first connecting rod 13, the first spring 15 is fixedly connected with the bottom of the piston cylinder 2, and vent holes 3 are formed below the baffle 17 and at the left side wall, the right side wall and the bottom of the piston cylinder 2; an air inlet pipe 5 is further arranged above the baffle 17, the air inlet pipe 5 penetrates through the baffle 17 and is in sliding connection with the baffle 17, a plurality of air inlet holes 8 are formed in the lower end of the air inlet pipe 5, and a sealing ring 9 is arranged at the connecting part of the air inlet pipe 5 and the baffle 17; the upper end of intake pipe 5 still runs through the top of piston cylinder 2 and rather than sliding connection, the left and right sides of intake pipe 5 all is fixed with second connecting rod 6, the bottom of second connecting rod 6 is fixed with second spring 12, the bottom of second spring 12 and the last fixed surface of baffle 17 are connected, the both ends of second connecting rod 6 still are equipped with curb plate 7, curb plate 7 closely laminates and sliding connection with piston cylinder 2.

The utility model discloses a theory of operation is: during the use, at first communicate with each other trachea and intake pipe 5, then promote intake pipe 5 downwards, the lower extreme of intake pipe 5 sticiss circular piston 10 and makes circular piston 10 downstream, until the inlet port 8 enters into the below of baffle 17, then ventilate to the inside of piston cylinder 2, it is gaseous through air vent 3 messenger soft shell 1 inflation until soft shell 1 fully heaves, then pulling intake pipe 5 makes its upward movement, under the effort of first spring 15, circular piston 10 closely laminates with the bottom of baffle 17, fine sealed effect has been played, and intake pipe 5 resets under the effort of second spring 12.

Example 2:

on the basis of embodiment 1, in the embodiment of the utility model provides an, an air spacer who is applied to limestone mine blasting usefulness, the inside of first connecting rod 13 is hollow state, the below of first connecting rod 13, the outside of first spring 15 are equipped with hollow tube 4, the lower extreme of first connecting rod 13 runs through the top of hollow tube 4, the bottom of first connecting rod 13 still is equipped with arch 14, first connecting rod 13 is through arch 14 and first spring 15 fixed connection, gag lever post 16 has still been run through to the inside of first spring 15, gag lever post 16 still runs through the bottom of arch 14 and first connecting rod 13 and rather than sliding connection, the top of gag lever post 16 and the bottom fixed connection of the top fixed connection of hollow tube 4, gag lever post 16 and the bottom of piston cylinder 2.

The hollow tube 4 is arranged to limit the first connecting rod 13, the limiting rod 16 is arranged to limit the first spring 15, and the stability of the round piston 10 in moving up and down is improved.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An air spacer applied to limestone mine blasting comprises a piston cylinder (2) and a soft shell (1); the soft shell structure is characterized in that the lower end of the piston cylinder (2) is located inside the soft shell (1), the soft shell (1) is fixedly connected with the piston cylinder (2), a baffle plate (17) is fixed inside the piston cylinder (2), a circular piston (10) is arranged below the baffle plate (17), the circular piston (10) is tightly attached to the piston cylinder (2) and is in sliding connection with the piston cylinder, a first connecting rod (13) is fixed at the bottom of the circular piston (10), a first spring (15) is arranged at the bottom of the first connecting rod (13), the first spring (15) is fixedly connected with the bottom of the piston cylinder (2), and vent holes (3) are formed below the baffle plate (17) and in the left side wall, the right side wall and the bottom of the piston cylinder (2); an air inlet pipe (5) is further arranged above the baffle (17), the air inlet pipe (5) penetrates through the baffle (17) and is in sliding connection with the baffle, and a plurality of air inlet holes (8) are formed in the lower end of the air inlet pipe (5); the upper end of intake pipe (5) still runs through the top of piston cylinder (2) and rather than sliding connection, the left and right sides of intake pipe (5) all is fixed with second connecting rod (6), the bottom of second connecting rod (6) is fixed with second spring (12), the bottom of second spring (12) and the last fixed surface of baffle (17) are connected.

2. Air spacer for limestone mine blasting according to claim 1, characterized in that the sealing sleeve (11) is provided at the connection part of the piston cylinder (2) and the soft shell (1).

3. Air spacer for limestone mine blasting according to claim 1 or 2, characterized in that the connection of the air inlet pipe (5) and the baffle (17) is provided with a sealing ring (9).

4. The air spacer for limestone mine blasting according to claim 1, wherein the second connecting rod (6) is further provided with a side plate (7) at two ends, and the side plate (7) is closely attached and slidably connected with the piston cylinder (2).

5. An air spacer for use in limestone mine blasting according to claim 1, it is characterized in that the interior of the first connecting rod (13) is in a hollow state, a hollow pipe (4) is arranged below the first connecting rod (13) and outside the first spring (15), the lower end of the first connecting rod (13) penetrates through the top of the hollow pipe (4), the bottom of the first connecting rod (13) is also provided with a bulge (14), the first connecting rod (13) is fixedly connected with a first spring (15) through a bulge (14), a limiting rod (16) penetrates through the first spring (15), the limiting rod (16) penetrates through the bottom of the protrusion (14) and the first connecting rod (13) and is connected with the protrusion in a sliding manner, the top of the limiting rod (16) is fixedly connected with the top of the hollow tube (4), and the bottom of the limiting rod (16) is fixedly connected with the bottom of the piston cylinder (2).