A gas spacer for blasting

Abstract

The utility model discloses a kind of gas spacers for blasting, it is related to blasting technical field, including expansion bag, gas holder, connecting piece, connecting rope and tow rope, the gas holder is set in expansion bag, the connecting piece is used to connect with expansion bag, and connecting piece is through expansion bag, the connecting piece is located inside expansion bag end and is connected with gas holder by connecting rope, and the connecting piece is located outside expansion bag end and is connected with tow rope, gas holder top is provided with pull rod and cam block, and gas holder is driven to descend by tow rope shaking, the compression gas is automatically released using the pressure rod of cam block lower pressure valve, passive trigger is realized, it is easy to operate and adapt to deep hole environment, using pure mechanical structure, without external energy or complex equipment.

Description

Technical Field

[0001] This utility model relates to the field of blasting technology, specifically a gas spacer for blasting. Background Technology

[0002] In blasting operations, gas spacers are used to create an inflatable isolation layer inside the borehole, optimizing the distribution of explosive energy and reducing the amount of explosive charge.

[0003] Traditional spacers mostly use external air supply for inflation or mechanical expansion structures, which have the following drawbacks:

[0004] It requires an additional air-filling device, making it inefficient in deep-hole operations; it relies on electric or pneumatic devices, limiting its applicability in remote mining areas.

[0005] Therefore, there is an urgent need for a gas spacer that is simple in structure, reliable in triggering, and requires no external energy source, in order to adapt to complex blasting environments. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] In view of the shortcomings of the existing technology, this utility model provides a gas spacer for blasting, which solves the problems mentioned above.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model is implemented through the following technical solution: a gas spacer for blasting, comprising an expansion bag, a gas storage tank, a connector, a connecting rope, and a traction rope. The gas storage tank is disposed inside the expansion bag, the connector is used to connect to the expansion bag, and the connector penetrates through the expansion bag. The inner end of the connector is connected to the gas storage tank through the connecting rope, and the outer end of the connector is connected to the traction rope.

[0010] The gas storage tank includes a tank body, a one-way valve, a support ring, a fixed rotating shaft, a pull rod, and a cam block. The one-way valve is installed at the top center of the tank body. The support ring is fitted onto the outside of the one-way valve and is fixed to the top of the tank body. The top center of the inner side of the support ring is rotatably connected to the pull rod through the fixed rotating shaft. A cam block is provided at the bottom end of the pull rod.

[0011] Preferably, the pull rod has a rope hole on the side away from the cam block, which is used to connect to the connecting rope.

[0012] Preferably, the outer wall of the can is fitted with a heat-shrink bag, the length of which is greater than the length of the can.

[0013] Preferably, the one-way valve includes a valve body, a valve plate, a pressure rod, and a spring. The valve body has an internal cavity, and valve ports are provided at both the upper and lower ends of the valve body, which are in communication with the tank. The valve plate is disposed inside the cavity of the valve body and is used to seal the valve port at the top of the valve body. The bottom edge of the valve plate is elastically connected to the inner bottom wall of the valve body by a spring. The valve body is fixed to the middle of the top of the tank.

[0014] Preferably, the connector includes a piercing rod, a support plate, a clamping screw tube, and a slot. The support plate is provided in the middle of the outer wall of the piercing rod. The clamping screw tube is fitted onto the outer side of the piercing rod, and the inner wall of the clamping screw tube is threaded to the piercing rod. A slot is provided at the bottom end of the piercing rod for connecting with a connecting rope.

[0015] Preferably, the tip of the puncture rod is pointed.

[0016] Preferably, the top of the puncture rod is provided with a puncture rod for connecting to the traction rope.

[0017] (III) Beneficial Effects

[0018] This utility model provides a gas spacer for blasting. It has the following advantages: by setting up a gas storage tank, the top of which is equipped with a pull rod and a cam block, the gas storage tank is driven to fall by the shaking of the traction rope. The cam block presses down on the lever of the one-way valve, automatically releasing the compressed gas. This achieves passive triggering, is easy to operate and adaptable to deep hole environments. It adopts a purely mechanical structure and requires no external energy or complex equipment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the gas storage tank structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the one-way valve structure in this utility model;

[0022] Figure 4 This is a schematic diagram of the connecting component structure in this utility model;

[0023] Figure 5 This is a schematic diagram of the expansion bag in the winding state of this utility model.

[0024] In the diagram: Expansion bag-1, gas tank-2, connector-3, connecting rope-4, traction rope-5;

[0025] Tank body-21, one-way valve-22, support ring-23, fixed rotating shaft-24, pull rod-25, cam block-26, rope hole-1-27, heat shrink bag-28, counterweight-29;

[0026] Valve body-221, valve plate-222, pressure rod-223, spring-224;

[0027] 31. Piercing rod, 32. Support plate, 33. Pressing screw tube, 34. Piercing hole two, 35. Slot. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1 and Figure 5 This utility model provides a technical solution for a gas spacer for blasting: a gas spacer for blasting includes an expansion bag 1, a gas storage tank 2, a connector 3, a connecting rope 4 and a traction rope 5. The gas storage tank 2 is disposed inside the expansion bag 1. The connector 3 is used to connect to the expansion bag 1 and pierces the expansion bag. The inner end of the connector 3 is connected to the gas storage tank 2 through the connecting rope 4, and the outer end of the connector 3 is connected to the traction rope 5.

[0030] Before being inserted into the gas storage tank 2, the expansion bag 1 is open on one side. After the gas storage tank 2 is inserted into the expansion bag 1 and the connector 3 is installed and the connecting rope 4 is connected, the opening of the expansion bag 1 is closed by heat pressing.

[0031] Please see Figure 2-3 The gas storage tank 2 includes a tank body 21, a one-way valve 22, a support ring 23, a fixed rotating shaft 24, a pull rod 25, and a cam block 26. The one-way valve 22 is installed at the top center of the tank body 21. The support ring 23 is fitted on the outside of the one-way valve 22 and is fixed to the top of the tank body 21. The top center of the inner side of the support ring 23 is rotatably connected to the pull rod 25 through the fixed rotating shaft 24. The bottom end of the pull rod 25 is provided with a cam block 26.

[0032] A rope hole 27 is provided on the side of the pull rod 25 away from the cam block 26. The rope hole 27 is used to connect to the connecting rope 4.

[0033] A heat shrink bag 28 is fitted on the outer wall of the can 21. The length of the heat shrink bag 28 is greater than the length of the can 21. The upper side of the heat shrink bag 28 is fitted on the outside of the can 21, and the lower side of the heat shrink bag 28 is used to wrap the counterweight 29. The two ends of the heat shrink bag 28 are hollowed out, and the upper side is fitted on the outer wall of the can 21. The heat shrink bag 28 is shrunk by heating, so that it is fixed on the outside of the can 21. The upper and lower sides of the outer wall of the can 21 are provided with annular grooves, and the heat shrink bag 28 fits the outer wall of the can 21, so that the heat shrink bag 28 is not easy to fall off the can 21, and the connection between the heat shrink bag 28 and the can 21 is more stable. The counterweight 29 is made of sand. The sand is put into the bottom opening of the inner side of the heat shrink bag 28. The sand is fixed to the bottom of the can 21 by tying the bottom of the heat shrink bag 28.

[0034] The one-way valve 22 includes a valve body 221, a valve plate 222, a pressure rod 223, and a spring 224. The valve body 221 has a cavity inside. Both the upper and lower ends of the valve body 221 are provided with valve ports, which are connected to the tank body 21. The valve plate 222 is disposed inside the cavity of the valve body 221. The valve plate 222 is used to block the valve port at the top of the valve body 221. The bottom edge of the valve plate 222 is elastically connected to the inner bottom wall of the valve body 221 through the spring 224. The valve body 221 is fixed to the middle of the top of the tank body 21.

[0035] The endoscope of the cavity inside the valve body 221 is larger than the outer diameter of the valve plate 222, and the inner diameter of the valve port at the upper and lower ends of the valve body 221 is smaller than the outer diameter of the valve plate 222. The valve body 221 is composed of two parts, and the valve port at the bottom is an openable end plate, which facilitates the installation of the valve plate 222 into the valve body 221.

[0036] Please see Figure 4 The connector 3 includes a piercing rod 31, a support plate 32, a clamping screw tube 33, and a slot 35. The support plate 32 is provided in the middle of the outer wall of the piercing rod 31. The clamping screw tube 33 is fitted on the outer side of the piercing rod 31, and the inner wall of the clamping screw tube 33 is threaded to the piercing rod 31. The bottom end of the piercing rod 31 is provided with a slot 35, which is used to connect with the connecting rope 4.

[0037] The support plate 32 is placed inside the expansion bag 1, and the clamping screw tube 33 is placed on the outer wall of the expansion bag 1. The outer wall of the expansion bag 1 is clamped by the support plate 32 and the clamping screw tube 33 to ensure the connection between the connector 3 and the expansion bag 1. The support plate 32 and the clamping screw tube 33 also have a sealing effect on the puncture hole of the expansion bag 1 to prevent air leakage at the puncture hole.

[0038] The tip of the puncture rod 31 is sharp, and the expansion bag is punctured through the sharp end of the puncture rod 31.

[0039] The top of the piercing rod 31 is provided with a piercing rod 31, which is used to connect to the traction rope 5.

[0040] In use, the gas spacer with the expansion bag 1 in its rolled-up state is placed into the rupture hole and pulled by the traction rope 4. After being lowered to the required height, the expansion bag 1 and the gas tank 2 are shaken up and down by shaking the traction rope 4. During shaking, the tank body 21 and the counterweight 29 are lowered because the bottom of the gas tank 2 is equipped with a counterweight 29. The connecting rope 4 pulls the end of the pull rod 25, causing the pull rod 25 to rotate along the fixed rotating shaft 24. The cam block 26 at the bottom of the pull rod 25 presses down the pressure rod 223 of the one-way valve 22, causing the valve plate 222 to move down and disconnect the valve plate 222 from the valve port of the valve body 221. This allows the compressed gas inside the tank body 21 to be discharged into the expansion bag 1, causing the expansion bag 1 to expand. Through the expansion of the expansion bag 1, the expansion bag 1 is locked into the rupture hole, completing the installation of the gas spacer.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gas spacer for blasting, characterized in that: The device includes an expansion bag (1), a gas tank (2), a connector (3), a connecting rope (4), and a traction rope (5). The gas tank (2) is located inside the expansion bag (1). The connector (3) is used to connect to the expansion bag (1) and passes through the expansion bag (1). The inner end of the connector (3) is connected to the gas tank (2) through the connecting rope (4), and the outer end of the connector (3) is connected to the traction rope (5). The gas storage tank (2) includes a tank body (21), a one-way valve (22), a support ring (23), a fixed rotating shaft (24), a pull rod (25), and a cam block (26). The one-way valve (22) is installed at the top center of the tank body (21). The support ring (23) is fitted on the outside of the one-way valve (22) and fixed to the top of the tank body (21). The middle of the top center of the inner side of the support ring (23) is rotatably connected to the pull rod (25) through the fixed rotating shaft (24). The bottom end of the pull rod (25) is provided with a cam block (26).

2. A gas spacer for blasting according to claim 1, characterized in that: The pull rod (25) has a rope hole (27) on the side away from the cam block (26), which is used to connect to the connecting rope (4).

3. A gas spacer for blasting according to claim 1, characterized in that: The outer wall of the can (21) is fitted with a heat shrink bag (28), the length of which is greater than the length of the can (21).

4. A gas spacer for blasting according to claim 1, characterized in that: The one-way valve (22) includes a valve body (221), a valve plate (222), a pressure rod (223), and a spring (224). The valve body (221) has a cavity inside. Both the upper and lower ends of the valve body (221) are provided with valve ports, which are connected to the tank (21). The valve plate (222) is disposed inside the cavity of the valve body (221). The valve plate (222) is used to block the valve port at the top of the valve body (221). The bottom edge of the valve plate (222) is elastically connected to the inner bottom wall of the valve body (221) through the spring (224). The valve body (221) is fixed to the middle of the top of the tank (21).

5. A gas spacer for blasting according to claim 1, characterized in that: The connector (3) includes a piercing rod (31), a support plate (32), a clamping screw tube (33), and a slot (35). The support plate (32) is provided in the middle of the outer wall of the piercing rod (31). The clamping screw tube (33) is fitted on the outside of the piercing rod (31), and the inner wall of the clamping screw tube (33) is threaded to the piercing rod (31). A slot (35) is provided at the bottom end of the piercing rod (31). The slot (35) is used to connect with the connecting rope (4).

6. A gas spacer for blasting according to claim 5, characterized in that: The tip of the puncture rod (31) is sharp.

7. A gas spacer for blasting according to claim 5, characterized in that: The top of the piercing rod (31) is provided with a piercing rod (31), which is used to connect with the traction rope (5).

Images