Ball seal type quick bounce-off mechanism

Abstract

The utility model relates to the field of action triggering, in particular to a ball seal type quick bounce-off mechanism which comprises a barrel, a round valve element hole is formed in the barrel in the axial direction, one end of the valve element hole is connected with a high-pressure gas source, the other end of the valve element hole is sealed through a valve element cover, a cylindrical valve element is arranged in the valve element hole in a matched mode, and a high-pressure gas cavity is formed between the valve element and a high-pressure gas cylinder. The cylinder body is sunken to form a section of sliding groove extending in the axial direction of the cylinder body, a sliding cylinder is matched in the sliding groove, the sliding cylinder is externally connected with a power source through an end head cover, and the sliding cylinder and the valve element cover are locked through a safety bolt arranged in the radial direction; air holes are formed in the cylinder body; a first limiting table is arranged on the sliding cylinder, a second limiting table flush with the first limiting table is arranged on the outer wall of the cylinder body, and a spring is arranged between the first limiting table and the second limiting table; the inner wall of the sliding cylinder is sunken to form a circle of annular ball groove in the radial direction, an abutting face is arranged outside the ball groove, and the distance between the abutting face and the high-pressure air cavity is smaller than the distance between the ball groove and the high-pressure air cavity. A clamping table is arranged at the end, close to the valve element cover, of the valve element, a plurality of ball holes are formed in the inner wall of the barrel in the radial direction, and sealing balls are arranged in a cavity formed between the clamping table and the ball holes. The ball seal type quick bounce-off mechanism has the advantages of being high in safety, good in sealing performance, capable of being repeatedly used, convenient to maintain and the like, is suitable for various working condition environments such as mine fields and stone fields where explosion is prone to occurring, and has wide application prospects and market value.

Description

TECHNICAL FIELD

[0001] The utility model relates to action trigger field especially a ball seal formula quick mechanism of bouncing open. BACKGROUND

[0002] In the mine, stone field and so on place of easy explosion, will use some explosion-proof or unloading mechanism, the action trigger device of this kind of mechanism usually adopts electric detonator split type or needle stick explosion relief piece type. Electric detonator split type mechanism, although can realize the function of quick opening to a certain extent, but its own safety is relatively low, and there is a big security risk. Once the operation is wrong or the storage condition is poor, such as high humidity, electric detonator split type mechanism is easy to be damped and fail, the internal circuit may be short-circuited or the mechanical component is rusted, thereby affecting its normal function, and even causing safety accidents. On the other hand, although needle stick explosion relief piece type mechanism solves the safety problem of electric detonator split type to a certain extent, but its sealing performance is not satisfactory, and it is difficult to ensure the sealing property and stability of high-pressure gas in the storage and release process. In addition, needle stick explosion relief piece type mechanism is extremely sensitive to vibration environment, and once subjected to strong vibration, the explosion relief piece is easy to deviate, resulting in sealing failure. More importantly, the two kinds of mechanisms are designed for one-time use, and once used, they cannot be restored, which not only limits their reusability, but also greatly increases the use cost. CONTENT OF THE UTILITY MODEL

[0003] The utility model can provide a ball seal formula quick mechanism of bouncing open that can be repeatedly used, is suitable for various working conditions and has higher safety performance.

[0004] The utility model scheme is as follows: a ball seal formula quick mechanism of bouncing open, including cylinder, the cylinder is opened in the axial direction and has a circular valve core hole, one end of the valve core hole is communicated with a high-pressure gas source, the other end is sealed through a valve core cover, a cylindrical valve core is matched in the valve core hole, and the valve core and the high-pressure gas bottle are high-pressure gas cavities;The cylinder is recessed to form a sliding groove extending along the axial direction, a sliding cylinder is matched in the sliding groove, the sliding cylinder is connected with a power source through one end head cover, and the sliding cylinder and the valve core cover are locked through a radially arranged safety bolt;The cylinder is provided with a gas hole;The sliding cylinder is provided with a first limiting table, the outer wall of the cylinder is provided with a second limiting table flush with the first limiting table, and a spring is arranged between the first limiting table and the second limiting table;The inner wall of the sliding cylinder is recessed to form a ring-shaped ball groove along the radial direction, a pressing surface is arranged outside the ball groove, and the distance between the pressing surface and the high-pressure gas cavity is less than the distance between the ball groove and the high-pressure gas cavity;The valve core is provided with a clamping table at one end close to the valve core cover, a plurality of radially arranged ball holes are formed in the inner wall of the cylinder, and a ball is arranged in the cavity formed between the clamping table and the ball hole.

[0005] The beneficial effects are: firstly, the ball sealing type quick pop-up mechanism adopts a ball sealing type design, high pressure gas is sealed and stably controlled in the storage and release process through the cooperation of the steel ball and the ball groove, and the problem of poor sealing performance of the needle piercing pressure relief piece type mechanism is effectively solved; secondly, the ball sealing type quick pop-up mechanism realizes the transmission of power and the quick pop-up of the valve core through the design of the spring and the sliding cylinder, the action triggering is sensitive and reliable, the safety hidden danger caused by the circuit short circuit or the rust of the mechanical parts of the electric detonator split type mechanism is avoided, and the power transmitted by the spring adjusting end cap is adjusted according to different working conditions, for example, when only 100N of thrust is needed, and the impact wave generated by the explosion is transmitted through the jack and has 200N, part of the kinetic energy is reduced through the spring, on the one hand, the hard collision of the sliding cylinder and the sliding groove is prevented, and on the other hand, the overflow thrust can be adjusted (by replacing springs of different specifications); and in the ball sealing type quick pop-up mechanism, the distance between the abutting surface and the high pressure gas cavity is less than the distance between the ball groove and the high pressure gas cavity, so that the sliding cylinder abuts against the steel ball in the normal state, and when the sliding cylinder is pushed by the jack (at the same time, the valve core is also moved under the pressure of the high pressure gas source), the ball falls into the ball groove, and the movement of the valve core makes the gas hole communicate with the high pressure gas cavity, and the high pressure gas is released through the gas hole to push the fire extinguishing agent and other powders.

[0006] In conclusion, the ball sealing type quick pop-up mechanism has the advantages of high safety, good sealing performance, reusability, convenient maintenance and the like, is suitable for various working conditions environments prone to explosion such as mine fields and stone fields, and has wide application prospect and market value.

[0007] Further, the quick release head is arranged between the valve core hole and the high pressure gas source input port, the high pressure gas source can be a high pressure gas cylinder, and the quick release head between the high pressure gas cylinder and the valve core hole can quickly detach the ball sealing type quick pop-up mechanism from the high pressure gas cylinder.

[0008] Further, the valve core is provided with an annular Y-shaped sealing ring, which can reduce the friction of the valve core while providing high sealing performance.

[0009] Further, the valve core is provided with a blind hole for reducing the weight of the valve core.

[0010] Further, the clamping table is a circular step formed by the protrusion of the valve core end, and the diameter of the clamping table is smaller than the diameter of the valve core, so that the clamping table abuts against the lower surface of the ball, and when the valve core moves beyond the valve core cover, the clamping table and the intersection of the valve core are inclined surfaces, which can push the ball into the ball groove.

[0011] Further, the ball hole on the cylinder body is six, and the ball is a steel ball. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a functional module diagram of the ball sealing type quick pop-up mechanism.

[0013] Reference: 1 end cap, 2- valve core cover, 3- sliding cylinder, 4- air hole, 5- spring, 6- cylinder, 7- valve core, 8- valve core nut, 9- adapter, 10- steel ball, 11- sealing ring, ball groove 12. DETAILED DESCRIPTION

[0014] As Figure 1 shown, the embodiment provides a ball seal type fast pop-up mechanism. The mechanism is mainly composed of valve core 7, cylinder 6, sliding cylinder 3, steel ball 10, end cap 11, etc., which can be formed by machining, has the advantages of high safety, good sealing and multiple use.

[0015] A ball seal type fast pop-up mechanism, including cylinder 6, the cylinder 6 is provided with an axial valve core hole, the valve core 7 is slidably fitted in the valve core hole, the valve core 7 can be installed valve core nut 8, convenient for adjusting the weight of valve core, further adjusting the action speed. The outer periphery of the valve core 7 is provided with a sealing groove, and the sealing groove is provided with a Y-shaped sealing ring 11, and the Y-shaped sealing ring 11 between the valve core 7 and the valve core hole can prevent high pressure gas from leaking from the contact surface. The left end of the valve core hole is provided with a valve core cover 2, and the right end of the valve core hole is connected with an adapter 9 (the adapter 9 is a tubular head with internal threads at both ends) through threads. The adapter 9 is connected with a high-pressure gas cylinder, and a high-pressure gas cavity is formed between the right side of the valve core 7 and the left side of the adapter 9. The cylinder 6 is provided with an air hole 4, and when the valve core 7 moves leftward beyond the air hole 4, the high-pressure gas cavity is communicated with the air hole 4.

[0016] The left end of the cylinder 6 is provided with an end cap 1, and a sliding groove is formed along the axial direction in the concave wall of the outer periphery of the cylinder 6. The sliding cylinder 3 is fitted in the sliding groove, and the sliding cylinder 3 is threadedly connected with the end cap 1 as a whole. The end cap 1 is connected with a top rod of a shock wave receiving device. When an explosion occurs, the end cap 1 pushes the sliding cylinder 3 to move in the sliding groove under the action of the top rod.

[0017] A positioning hole is formed in the left end wall of the sliding cylinder 3 along the radial direction, and a blind hole is formed in the valve core cover 2 corresponding to the positioning hole. The positioning hole and the blind hole are coaxially communicated to form a safety hole. A safety bolt is inserted into the safety hole to lock the sliding cylinder 3, preventing it from moving on the cylinder 6. When the ball seal type fast pop-up mechanism of the embodiment is used, the safety bolt needs to be removed.

[0018] The outer wall of the cylinder 6 is provided with an annular second limiting table Figure 1 which is located on the left side of the air hole 4), and the sliding cylinder 3 is flush with the annular second limiting table. The first limiting table and the second limiting table are provided with a spring 5.

[0019] The inner wall of the sliding cylinder 3 is provided with a ball groove and a steel ball 10 abutting surface from left to right in sequence, wherein the ball groove is a circular groove formed by the concave inner wall of the cylinder body 6 along the radial direction, and the ball groove is located at the right side of the safety bolt; the steel ball 10 abutting surface is in contact with the outer wall of the cylinder body 6. The front end (i.e. left end) of the valve core 7 protrudes to form a circular clamping table, and the diameter of the clamping table is slightly smaller than the valve core 7; the wall of the cylinder body 6 is provided with a plurality of ball holes (generally 4-6 ball holes are uniformly arranged along the radial direction of the cylinder body 6) at the position corresponding to the clamping table, and the steel ball 10 is clamped in the ball hole; the lower end of the steel ball 10 is in contact with the clamping table, and the upper end is in contact with the steel ball 10 abutting surface; in order to facilitate the pushing of the steel ball 10 from the ball hole into the ball groove when the valve core 7 moves to the left, the connection between the clamping table and the valve core 7 is designed as an inclined surface.

[0020] In this embodiment, the valve core 7 is made of 40Cr or 12Cr to ensure the hardness strength, and the remaining components (except for various flexible components such as the sealing ring 11) are made of 45# steel or stainless steel to ensure the toughness.

[0021] The adjustable spring 5 structure is designed in this embodiment to adjust the size of the acting force, and the mechanism is connected to the high-pressure gas cylinder under normal conditions, and the valve core 7 acts as a sealing element; when action is needed, the top rod pushes the sliding cylinder 3 to move to the right, the steel ball 10 is pushed up and falls into the ball groove of the sliding cylinder 3, and the valve core 7 moves to the left to the valve core cover 2 position under the action of high-pressure gas, the gas hole 4 on the cylinder body 6 is in communication with the high-pressure gas cavity, and the high-pressure gas is released through the gas hole 4 to push the powder such as fire extinguishing agent to be sprayed as power. After the mechanism of this embodiment is actuated, the end cap 1, the valve core cover 2 and the sliding cylinder 3 can be sequentially disassembled, the valve core 7 and the steel ball 10 are restored, and then the cylinder body 6, the sliding cylinder 3, the valve core cover 2 and the end cap 1 are installed to realize multiple uses.

[0022] In summary, the ball seal type quick pop-up mechanism realizes efficient management of the whole chain from pre-hospital treatment to postoperative recovery through highly integrated and intelligent design, greatly improves the utilization rate of medical resources and the success rate of patient treatment.

Claims

1. A ball-seal type quick release mechanism, comprising a cylinder body, which is axially provided with a circular valve core hole, one end of which is communicated with a high-pressure gas source and the other end of which is sealed by a valve core cover, and a cylindrical valve core is fitted in the valve core hole, and a gas cavity is formed between the valve core and the high-pressure gas bottle, characterized in that: the cylinder body is recessed to form a sliding groove extending along the axial direction, and a sliding cylinder is fitted in the sliding groove, the sliding cylinder is connected to an external power source through an end cover, and the sliding cylinder and the valve core cover are locked by a radial safety bolt; the cylinder body is provided with a gas hole; the sliding cylinder is provided with a first limiting platform, and the outer wall of the cylinder body is provided with a second limiting platform flush with the first limiting platform, and a spring is arranged between the first limiting platform and the second limiting platform; the inner wall of the sliding cylinder is recessed to form an annular ball groove along the radial direction, and a tight surface is arranged outside the ball groove, and the distance between the tight surface and the high-pressure gas cavity is less than the distance between the ball groove and the high-pressure gas cavity; the valve core is provided with a clamping platform at one end close to the valve core cover, a plurality of radial ball holes are formed in the inner wall of the cylinder body, and a sealing ball is arranged in the cavity formed between the clamping platform and the ball hole. A quick release head is arranged between the valve core hole and the high-pressure gas source input port. An annular Y-shaped sealing ring is arranged on the valve core. The valve core is provided with a blind hole.

2. A ball seal quick pop-off mechanism according to claim 1, wherein: The clamping platform is a circular step protruding from the end of the valve core, and the diameter of the clamping platform is smaller than the diameter of the valve core, and the intersection between the clamping platform and the valve core is a bevel.

3. A ball seal quick pop-off mechanism according to claim 2, wherein: The cylinder body is provided with six ball holes, and the sealing ball is a steel ball.

4. A ball seal quick pop-off mechanism according to claim 3, wherein: ​ 5. A ball seal quick pop-off mechanism according to claim 4, wherein: ​ 6. A ball seal quick pop-off mechanism according to claim 5, wherein: ​

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