Blasting charge limiting device

Abstract

The utility model discloses a blasting charge limiting device, which relates to the technical field of blasting and comprises a base, a tubular barrel is arranged on the base, a limiting support component is mounted on the base along the circumferential direction, the tail end of the limiting support component is abutted against the inner wall of a blast hole, and the limiting support component is symmetrical about the axis of the barrel. A memory assembly used for recording the position of the limiting supporting assembly is installed on the barrel. According to the device, the problem that the blasting effect is greatly influenced due to the defects that the number of gaskets is large, binding operation is troublesome, and it is difficult to ensure that the explosive cartridge is located in the center of a blast hole in a traditional centered non-coupling charging method is solved.

Description

Technical Field

[0001] The utility model belongs to the field of blasting, and in particular relates to a blasting charge limiting device. Background Art

[0002] During construction projects like mining and earthwork excavation, uncoupled charging is often required for blasting due to rock conditions. Existing uncoupled charging techniques require the charge coil to be confined to the center of the blasthole for optimal blasting effectiveness. Typically, the charge coil is tied between a single or double piece of bamboo, then connected with a detonating cord. Finally, several small pieces of bamboo suitable for tape binding are distributed around the single or double piece and bundled. Once bundled, the charge coil is placed into the blasthole to achieve the desired confinement.

[0003] However, the traditional centered uncoupled charging method has disadvantages such as many gaskets, complicated bundling operation, and difficulty in ensuring that the charge roll is in the center of the blasthole, which will greatly affect the blasting effect. Utility Model Content

[0004] In view of the problems mentioned in the background technology, the purpose of the present invention is to provide a blasting charge limiting device to solve the problems mentioned in the background technology.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] A blasting charge limiting device includes a base, a tubular cylinder is provided on the base, a limiting support assembly is installed circumferentially upwardly of the base, the end of the limiting support assembly abuts the inner wall of the blasthole and the limiting support assembly is symmetrical about the axis of the cylinder, and a memory assembly for recording the position of the limiting support assembly is installed on the cylinder.

[0007] As an optimal technical solution, the limit support assembly includes multiple groups of support rods hingedly installed on the circumference of the base and retaining rings sleeved on the cylinder. The limit support assembly has an initial state and a supporting state. When in the initial state, the support rod is close to the cylinder, and the retaining ring is separated from the support rod; when in the supporting state, the retaining ring is in contact and connected with the inner wall of the support rod, and the support rod and the base rotate relative to each other to a suitable angle.

[0008] As a preferred technical solution, the distances between any two adjacent groups of support rods are equal.

[0009] As a preferred technical solution, the memory assembly includes a slider buckle and a scale hole installed on the outer wall of the cylinder, the slider buckle is installed on the clamping ring, and the slider buckle is clamped on the scale hole.

[0010] As a preferred technical solution, a clamping sleeve is provided on the circumference of the end of the cylinder away from the base to prevent the clamping ring from falling off.

[0011] As an optimal technical solution, the limit support assembly includes multiple groups of support rods installed on the circumference of the base and a fixing device is provided at the connection between the support rods and the base. The limit support assembly has an adjustment state and a support state. When in the adjustment state, the fixing device is loosened and the support rod and the base rotate relative to each other; when in the support state, the support rod and the base are fixedly connected by the fixing device.

[0012] As a preferred technical solution, the memory assembly includes buckles respectively installed on each group of support rods and multiple groups of scale holes installed on the outer wall of the cylinder, and the scale holes are snap-connected with the buckles in a one-to-one correspondence.

[0013] As a preferred technical solution, a line card is provided on the base and / or the cylinder.

[0014] Beneficial effects

[0015] The device avoids the problems of the traditional centered uncoupled charging method, such as the large number of gaskets, the complicated bundling operation, and the difficulty in ensuring that the charge roll is in the center of the blasthole, which have a great impact on the blasting effect.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of a blasting charge limiting device proposed by the utility model;

[0018] Figure 2 The utility model is a top view of a blasting charge limiting device.

[0019] Figure numerals: 1. base; 2. cylinder; 3. position limiting support assembly; 4. memory assembly; 5. scale hole; 6. line card. DETAILED DESCRIPTION

[0020] The following describes in detail embodiments of the present invention. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar symbols throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention, and should not be construed as limiting the present invention.

[0021] Example 1

[0022] refer to Figure 1The blasting charge limiting device described in this embodiment includes a base 1, a tubular barrel 2 is provided on the base 1, a limiting support assembly 3 is installed circumferentially upwardly of the base 1, the end of the limiting support assembly 3 abuts against the inner wall of the blasthole and the limiting support assembly 3 is symmetrical about the axis of the barrel 2, a memory assembly 4 for recording the position of the limiting support assembly 3 is installed on the barrel 2, and a wire card 6 is provided on the base 1 and / or the barrel 2.

[0023] Load the explosives into the cylinder 2 from the upper opening of the cylinder 2, and then adjust the limit support assembly 3 according to the size of the blast hole so that the limit support assembly 3 is supported on the inner wall of the blast hole. After adjustment, adjust the position of the memory assembly 4 to facilitate the subsequent adjustment of the limit support assembly 3 of other devices to the appropriate position. Finally, insert the detonating cord into the wire clip 6, repeat the above process, and finally fill the blast hole to complete the charging process.

[0024] The position limiting support assembly 3 includes multiple groups of support rods hingedly installed on the circumference of the base 1 and clamping rings sleeved on the cylinder 2. The position limiting support assembly 3 has an initial state and a supporting state. When in the initial state, the support rod is close to the cylinder 2, and the clamping ring is separated from the support rod; when in the supporting state, the clamping ring is in contact and connected with the inner wall of the support rod, and the support rod and the base 1 rotate relative to each other to a suitable angle.

[0025] Push the retaining ring from top to bottom according to the size of the blasthole, and push the support rod to open to a suitable angle by adjusting the position of the retaining ring. When there is no force, the support rod and the base 1 can be fixed by friction. The closer the retaining ring is to the base 1, the larger the support rod opening angle is.

[0026] Preferably, the support rods are symmetrical in pairs about the axis of the cylinder 2 and the distances between any two adjacent groups of support rods are equal.

[0027] The support rods are symmetrical and equidistant, making the device more stable.

[0028] The memory assembly 4 includes a slider buckle and a scale hole 5 installed on the outer wall of the cylinder 2 . The slider buckle is installed on the clamping ring, and the slider buckle is clamped on the scale hole 5 .

[0029] After adjusting the position of the support rod, fix the sliding buckle on the scale hole 5 where the clamping ring is located. During subsequent charging, the clamping ring can be adjusted according to the recorded scale hole 5, which makes it convenient to quickly adjust the device.

[0030] Preferably, a clamping sleeve is provided on the circumference of the end of the cylinder 2 away from the base 1 to prevent the clamping ring from falling off.

[0031] The clamping sleeve is used to prevent the clamping ring from falling off from the cylinder 2 in the initial state.

[0032] The device avoids the problems of the traditional centered uncoupled charging method, such as the large number of gaskets, the complicated bundling operation, and the difficulty in ensuring that the charge roll is in the center of the blasthole, which have a great impact on the blasting effect.

[0033] Example 2

[0034] refer to Figure 1 and Figure 2 The blasting charge limiting device described in this embodiment, the limiting support assembly 3 includes multiple groups of support rods installed on the circumference of the base 1, and the connection between the support rods and the base 1 is provided with a fixing device. The limiting support assembly 3 has an adjustment state and a supporting state. When in the adjustment state, the fixing device is loosened, and the support rods and the base 1 rotate relative to each other; when in the supporting state, the support rods and the base 1 are fixedly connected by the fixing device.

[0035] Loosen the fixing devices in sequence, adjust the support rod 3 to a suitable angle according to the size of the blasthole, and then fix the support rod 3 in sequence after adjustment to adjust the state of the limit support assembly 3.

[0036] The memory assembly 4 includes buckles respectively installed on each group of support rods and multiple groups of scale holes 5 installed on the outer wall of the cylinder 2, and the scale holes 5 are snap-connected with the buckles in a one-to-one correspondence.

[0037] After adjusting the position of the support rod, fix the buckle on the scale hole 5 at the corresponding position in turn. During subsequent charging, the buckle can be adjusted according to the recorded scale hole 5.

[0038] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and 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 therefore should not be understood as a limitation on the present invention.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0040] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0041] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0042] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A blasting charge limiting device, characterized by: The invention comprises a base (1), a tubular barrel (2) is provided on the base (1), a position-limiting support assembly (3) is installed on the base (1) in an upward circumferential direction, the end of the position-limiting support assembly (3) abuts against the inner wall of the blasthole, and the position-limiting support assembly (3) is symmetrical about the axis of the barrel (2), and a memory assembly (4) for recording the position of the position-limiting support assembly (3) is installed on the barrel (2).

2. The blasting charge limiting device according to claim 1, characterized in that: The position-limiting support assembly (3) comprises a plurality of groups of support rods hingedly mounted on the circumference of the base (1) and snap rings sleeved on the cylinder (2). The position-limiting support assembly (3) has an initial state and a supporting state. When in the initial state, the support rods are in close contact with the cylinder (2), and the snap rings are separated from the support rods. When in the supporting state, the snap rings are in contact with the inner wall of the support rods, and the support rods and the base (1) are rotated relative to each other to a suitable angle.

3. The blasting charge limiting device according to claim 2, characterized in that: The distances between any two adjacent support rods are equal.

4. The blasting charge limiting device according to claim 2, characterized in that: The memory assembly (4) comprises a slider buckle and a scale hole (5) installed on the outer wall of the cylinder (2); the slider buckle is installed on the clamping ring, and the slider buckle is clamped on the scale hole (5).

5. The blasting charge limiting device according to claim 2, characterized in that: A clamping sleeve is provided on the circumference of the end of the cylinder (2) away from the base (1) to prevent the clamping ring from being separated.

6. The blasting charge limiting device according to claim 1, characterized in that: The position-limiting support assembly (3) comprises a plurality of groups of support rods mounted on the circumference of the base (1), and the connection between the support rods and the base (1) is provided with a fixing device. The position-limiting support assembly (3) has an adjustment state and a support state. When in the adjustment state, the fixing device is loosened, and the support rods and the base (1) rotate relative to each other; when in the support state, the support rods and the base (1) are fixedly connected via the fixing device.

7. The blasting charge limiting device according to claim 6, characterized in that: The memory assembly (4) comprises buckles respectively mounted on each group of support rods and multiple groups of scale holes (5) mounted on the outer wall of the cylinder (2), and the scale holes (5) are snap-connected with the buckles in a one-to-one correspondence.

8. The blasting charge limiting device according to claim 1, characterized in that: A wire clip (6) is provided on the base (1) and / or the cylinder (2).

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