Self-sealing type air spacer capable of transmitting explosion

Abstract

The utility model provides a self-sealing type air spacer capable of propagating explosion, which comprises a blast hole, a charging pipe is arranged in the blast hole, the outer surface of the charging pipe is fixedly connected with two stopping parts, the outer surface of the blast hole is in threaded connection with two trays, and the two trays are connected with the charging pipe. Four connecting cylinders are fixedly connected to the inner surface of the upper tray, funnel parts are fixedly connected to the upper surfaces of the connecting cylinders, first limiting grooves are formed in the trays, spring grooves are formed in the inner surfaces of the first limiting grooves, and springs are fixedly connected to the inner walls of the spring grooves; one end of each spring is fixedly connected with a clamping block, the inner surface of the lower tray is fixedly connected with a limiting column, a clamping groove is formed in the outer surface of the limiting column, and the air spacer can be widely applied to the field of air spacers.

Description

TECHNICAL FIELD

[0001] The utility model relates to air spacer technical field, in particular to a kind of self-sealing air spacer of transmission. BACKGROUND

[0002] In the process of mining, drilling and blasting is an important process link, wherein the blasting effect of blasting operation directly affects the subsequent mining efficiency and the cost of mining, in the process of perforating and blasting in open-pit and underground mine, especially in medium-deep hole blasting, air spacing charge blasting technology will be used.

[0003] Chinese utility model patent CN202320869763.4 discloses a kind of self-sealing air spacer of transmission, including charge pipe, stop portion and tray, the charge pipe is hollow, the stop portion is fixed in the outer wall of the charge pipe, the tray has a through hole communicating with its upper and lower surfaces, two The tray is respectively set in the two ends of the charge pipe through the through hole and abuts with the stop portion.Compared with prior art, the two trays of the self-sealing air spacer of transmission provided by the utility model are communicated through the charge pipe, when adding explosive to the upper tray during use, the explosive can slide into the charge pipe, and the explosive in the upper and lower trays is communicated, which replaces the existing transmission device to realize the transmission function during blasting, simplifies the charging process, thereby reducing the blasting cost and implementation difficulty, and is beneficial to the popularization of interval blasting.

[0004] However, the above-mentioned air spacer needs to be placed in the blast hole first when installing, then the gunpowder is filled, and then another air spacer is placed in the blast hole after filling the appropriate amount, which will cause the process of filling the gunpowder to become troublesome, and the filling amount needs to be calculated each time, which is very time-consuming and not conducive to the use of air spacer. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the above technical deficiencies, and provides a kind of self-sealing air spacer of transmission.

[0006] Therefore, the utility model provides a kind of self-sealing air spacer of transmission, including blast hole, the inside of blast hole is provided with charge pipe, the outer surface of charge pipe is fixedly connected with stop portion, the number of stop portion is two, the outer surface of blast hole is threadedly connected with tray, the number of tray is two, the inner surface of upper tray is fixedly connected with connecting barrel, the number of connecting barrel is four, the upper surface of connecting barrel is fixedly connected with funnel portion, the inside of tray is equipped with first limit slot, the inner surface of first limit slot is equipped with spring slot, the inner wall of spring slot is fixedly connected with spring, one end of spring is fixedly connected with clamping block, the inner surface of lower tray is fixedly connected with limit column, the outer surface of limit column is equipped with clamping slot.

[0007] Preferably, the cross-sectional shape of the stop portion is a circular ring shape, and the tray is fitted with the stop portion.

[0008] Preferably, the inner wall of the tray is fixedly connected with a limiting strip, and the spring is sleeved on the outer surface of the limiting strip.

[0009] Preferably, the inside of the clamping block is provided with a second limiting groove, and the limiting strip is located in the inside of the second limiting groove.

[0010] Preferably, the upper surface of the upper tray is fixedly connected with a sealing ring, and the sealing ring is fitted with the inner wall of the blast hole.

[0011] Preferably, the lower part of the blast hole is provided with an air cushion layer, and the upper surface of the air cushion layer is provided with a detonator.

[0012] The utility model provides a kind of air spacer of self-sealing type that can be transmitted explosion, there is as follows Advantage:

[0013] Compared with prior art, the air spacer of self-sealing type that can be transmitted explosion, through blast hole, air cushion layer, detonator, charge pipe, tray, limiting column, connecting cylinder, clamping block, clamping groove;When before carrying out blasting operation, first the bottom of blast hole is laid air cushion layer, then detonator is placed, and then the four limiting columns in the tray of upper charge pipe are aligned with the connecting cylinder of the tray of lower charge pipe outside, then lower the upper charge pipe, so that the lower surface of the limiting column on the upper charge pipe extrudes the inclined surface of the clamping block in the lower charge pipe, and then causes the clamping block to slide along the spring groove gradually away from the limiting column, and the spring contracts until the limiting column is inserted to the bottom, the spring rebounds and drives the clamping block to reset, at this time, the clamping block is located in the inside of the clamping groove, at this time, the upper and lower charge pipes are synthesized into a whole, and then the whole is placed into blast hole, at this time, gunpowder is added to blast hole, and it can be added to appropriate position, compared with existing air spacer, when installing, an air spacer needs to be placed in blast hole first, then gunpowder is filled, and after filling to appropriate amount, another air spacer is placed in blast hole, and the process becomes troublesome, and the filling amount needs to be calculated every time, which is very time-consuming, and is not conducive to the use of air spacer, the air spacer of self-sealing type that can be transmitted explosion is placed into blast hole after being spliced outside, and gunpowder can be added directly, which is more time-saving and conducive to the use of air spacer. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the whole structure schematic view of the air spacer of self-sealing type that can be transmitted explosion proposed in the utility model;

[0015] Figure 2 It is the whole structure sectional view of the air spacer of self-sealing type that can be transmitted explosion proposed in the utility model.

[0016] Figure 3 This utility model proposes a self-sealing air gap capable of transmitting explosions. Figure 2 Enlarged view of the structure at point A in the middle;

[0017] Figure 4 This is a cross-sectional view of the charge tube structure of a self-sealing air compartment for detonation transmission proposed in this utility model.

[0018] Figure 5 This utility model proposes a self-sealing air gap capable of transmitting explosions. Figure 4 Enlarged view of the structure at point B;

[0019] Figure 6 This is a partial structural schematic diagram of a self-sealing air gap capable of transmitting explosions, as proposed in this utility model.

[0020] Figure 7 This utility model proposes a self-sealing air gap capable of transmitting explosions. Figure 6 Enlarged view of the structure at point C;

[0021] Figure 8 This is a diagram of the block structure of a self-sealing air gap device capable of transmitting explosions, as proposed in this utility model.

[0022] The markings in the diagram are: 1. Blast hole; 2. Charge tube; 3. Stop; 4. Tray; 5. Connecting cylinder; 6. Funnel; 7. First limiting groove; 8. Spring groove; 9. Spring; 10. Locking block; 11. Limiting post; 12. Locking groove; 13. Limiting strip; 14. Second limiting groove; 15. Sealing ring; 16. Air cushion layer; 17. Detonator. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0024] Depend on Figures 1-8The utility model provides a kind of air spacer of self-sealing that can be transmitted explosion, including blasthole 1, the inside of blasthole 1 is provided with charge tube 2, the outer surface of charge tube 2 is fixedly connected with stop portion 3, the number of stop portion 3 is two, the outer surface of blasthole 1 is threadedly connected with tray 4, the number of tray 4 is two, the inner surface of upper tray 4 is fixedly connected with connecting cylinder 5, the number of connecting cylinder 5 is four, the upper surface of connecting cylinder 5 is fixedly connected with funnel portion 6, the inside of tray 4 is provided with first limit slot 7, the inner surface of first limit slot 7 is provided with spring groove 8, the inner wall of spring groove 8 is fixedly connected with spring 9, one end of spring 9 is fixedly connected with clamping block 10, the inner surface of lower tray 4 is fixedly connected with limit post 11, the height of limit post 11 can be adjusted according to the demand of specific powder quantity, limit post 11 is provided with clamping slot 12 on the outer surface, when before carrying out blasting operation, first air cushion layer 16 is laid on the bottom of blasthole 1, then detonator 17 is placed, then four limit posts 11 in the tray 4 of upper charge tube 2 are aligned with the connecting cylinder 5 of the tray 4 of lower charge tube 2 outside, then lower the upper charge tube 2, so that the lower surface of limit post 11 on the upper charge tube 2 extrudes the inclined surface of clamping block 10 in lower charge tube 2, then causes clamping block 10 to slide along spring groove 8 gradually away from limit post 11, spring 9 contracts, until limit post 11 is inserted to the bottom, spring 9 rebounds and drives clamping block 10 to reset, at this time, clamping block 10 is located in the inside of clamping slot 12, at this time, two charge tubes 2 are synthesized into a whole, then the whole is placed into blasthole 1, at this time, powder is added to blasthole 1, and it can be added to appropriate position, the cross section shape of stop portion 3 is circular ring, tray 4 is attached to stop portion 3, stop portion 3 can limit effect to tray 4, the inner wall of tray 4 is fixedly connected with limit strip 13, spring 9 is sleeved on the outer surface of limit strip 13, limit strip 13 can not produce shaking when spring 9 is stretched and contracted, and also can avoid the emergence of elastic instability condition, the inside of clamping block 10 is provided with second limit slot 14, limit strip 13 is located in the inside of second limit slot 14, limit strip 13 can limit the movement of clamping block 10 to a certain extent.

[0025] By Figures 1-8As shown, the utility model provides a kind of air spacer of self-sealing type that can be transmitted, and the upper surface of upper tray 4 is fixedly connected with sealing ring 15, sealing ring 15 is attached with the inner wall of blasthole 1, sealing ring 15 can form sealing effect between upper tray 4 and blasthole 1, sealing ring 15 adopts soft and elastic material moderately, such as silicon rubber etc., and its thickness and hardness design is reasonable, when tray 4 is placed, sealing ring 15 can be better attached blasthole 1 inner wall, simultaneously will not produce excessive friction force and hinder tray 4 to drop, and the lower portion of blasthole 1 is provided with air cushion layer 16, and the upper surface of air cushion layer 16 is provided with detonator 17, and air cushion layer 16 can play the role of buffer and adjust explosion energy distribution, reduce the excessive fragmentation of the rock at the bottom of blasthole 1, simultaneously can reduce blasting seismic effect, improve the utilization rate of explosive energy, and detonator 17 is used to detonate filled explosive.

[0026] In the description of the utility model, it needs to be understood that the orientation or position relationship indicated by the terms "left", "right", "upper", "lower", "top", "bottom", "front", "rear", "inner", "outer", "back", "middle" etc. is the orientation or position relationship shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and is not indicative or suggestive of the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, so it cannot be understood as the limitation of the utility model.

[0027] The above-mentioned is only the specific embodiment of the utility model, and cannot limit the range of the utility model, so the replacement of equivalent components, or equivalent changes and modifications made according to the patent protection range of the utility model should still belong to the scope covered by the claims of the utility model.

Claims

1. A primable self-sealing air spacer comprising a blasthole (1), characterized in that, The inside of the blast hole (1) is provided with a charging pipe (2), the outer surface of the charging pipe (2) is fixedly connected with a stop portion (3), the number of the stop portion (3) is two, the outer surface of the blast hole (1) is threadedly connected with a tray (4), the number of the tray (4) is two, the inner surface of the upper tray (4) is fixedly connected with a connecting cylinder (5), the number of the connecting cylinder (5) is four, the upper surface of the connecting cylinder (5) is fixedly connected with a funnel portion (6), the inside of the tray (4) is provided with a first limiting groove (7), the inner surface of the first limiting groove (7) is provided with a spring groove (8), the inner wall of the spring groove (8) is fixedly connected with a spring (9), one end of the spring (9) is fixedly connected with a clamping block (10), the inner surface of the lower tray (4) is fixedly connected with a limiting column (11), the outer surface of the limiting column (11) is provided with a clamping groove (12).

2. The nonel self-sealing air spacer of claim 1, wherein, The cross section shape of the stop portion (3) is a circular ring shape, the tray (4) is attached with the stop portion (3).

3. The nonel self-sealing air spacer of claim 1, wherein, The inner wall of the tray (4) is fixedly connected with a limiting strip (13), the spring (9) is sleeved on the outer surface of the limiting strip (13).

4. The nonel self-sealing air spacer of claim 3, wherein, The inside of the clamping block (10) is provided with a second limiting groove (14), the limiting strip (13) is located in the inside of the second limiting groove (14).

5. The nonel self-sealing air spacer of claim 1, wherein, The upper surface of the upper tray (4) is fixedly connected with a sealing ring (15), the sealing ring (15) is attached with the inner wall of the blast hole (1).

6. The nonel self-sealing air spacer of claim 1, wherein, The lower part of the blast hole (1) is provided with an air cushion layer (16), the upper surface of the air cushion layer (16) is provided with a detonator (17).

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