Combined type energy gathering pipe

Abstract

The utility model belongs to the technical field of tunnel blasting construction, and particularly relates to a combined energy gathering pipe which comprises an energy gathering pipe body and a graduated scale. Grooves are formed in the energy gathering pipe and comprise the first groove and the second grooves, the first groove is located between the two V-shaped energy gathering grooves, the distance between the first groove and the two V-shaped energy gathering grooves is consistent, the number of the second grooves is two, and the second grooves are formed in the sides, away from the first groove, of the two V-shaped energy gathering grooves in a mirror image mode. The graduated scale comprises a first graduated scale body and second graduated scale bodies, the first graduated scale body can be inserted into the first groove, the outer surface of the first graduated scale body is attached to the inner surfaces of the second grooves, the number of the second graduated scale bodies is two, and the two second graduated scale bodies are inserted into the two second grooves respectively. The device has the advantages that the interval charging distance is effectively controlled, the cutting direction of the energy gathering groove is accurately controlled, and the graduated scale can be recycled.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tunnel blasting construction technical field, specifically, the utility model relates to a combined energy pipe. BACKGROUND

[0002] Traditional blasting is when the explosive explodes, high-temperature and high-pressure gas will be produced, and these gases will spread to the surrounding at a very fast speed. In the diffusion process, the gas will produce a violent impact force and vibration to the building, thereby causing the destruction of the building or other objects. As a new type of blasting device, the energy pipe has two grooves in the horizontal direction of the pipe wall. After loading the explosive, when the explosion occurs, the energy will realize a similar effect of cutting a knife in the horizontal direction, thereby realizing the effective control of the blasting direction. The traditional energy pipe generally adopts a closed circular PVC pipe structure, and the following problems exist in the construction:

[0003] (1) The installation quality of the energy pipe is greatly affected by human factors: after the energy pipe is loaded, it needs to be fixed on the bamboo sheet according to the interval loading interval, and the direction of the energy groove in the energy pipe on the same bamboo sheet must be kept consistent, the personnel responsibility has a great influence on the overall installation quality. If the directions are inconsistent, it cannot guarantee the same cutting direction, and more serious overbreak or underbreak will occur.

[0004] (2) The installation direction of the energy pipe in the hole is greatly affected by human factors: when the bamboo sheet is used to send the explosive into the blast hole, it needs to ensure that the cutting direction of the energy groove in the energy pipe is along the tunnel contour direction. However, during the explosive sending process, it is difficult for the workers to judge the direction of the energy groove, and if the directions are inconsistent, it cannot guarantee the direction along the tunnel contour direction, and more serious overbreak will occur. CONTENT OF THE UTILITY MODEL

[0005] Therefore, the utility model provides a combined energy pipe, thereby solving or at least alleviating the above-mentioned problems existing in the prior art.

[0006] In order to realize the foregoing purpose, the utility model provides a combined energy pipe, which comprises an energy pipe and a scale, the energy pipe is provided with a groove, the groove comprises a first groove and a second groove, the first groove is located between two V-shaped energy grooves and has the same interval as the two V-shaped energy grooves, the second groove is provided with two and is mirror image arranged on the side of the two V-shaped energy grooves away from the first groove, the scale comprises a first scale and a second scale, the first scale is inserted into the first groove, the outer surface of the first scale is attached to the inner surface of the second groove, and the second scale is provided with two and is inserted into the two second grooves respectively.

[0007] In the combined shaped charge tube as described above, optionally, the second scale is consistent in size with the first scale, and the outer surface of the second scale is in contact with the inner surface of the second groove.

[0008] In the combined shaped charge tube as described above, optionally, the second scale comprises a first part, a second part and a third part, the first part is provided with two V-shaped first parts, the side surface of the first part is in contact with the inner surface of the second groove, and the bottom surface of the two first parts is inserted and mounted at both ends of the second part, the third part is arranged between the two first parts and above the second part, and the two ends of the third part are in contact with the inner surface of the two first parts.

[0009] In the combined shaped charge tube as described above, optionally, when the outer surface of the first part is in contact with the inner surface of the second groove, the second scale can be tightly inserted into the second groove, and when the outer surface of the first part is separated from the inner surface of the second groove, the second scale can be pulled out of the second groove.

[0010] In the combined shaped charge tube as described above, optionally, the two ends of the second part are fixedly provided with extension plates, the distance between the two extension plates is greater than the length of the first part and the third part, a core rod is threadedly connected to the extension plate, a top plate is fixedly installed on the outer wall of the core rod, the length of the top plate is less than the length of the core rod, and the top end of the top plate is in contact with the bottom surface of the third part.

[0011] In the combined shaped charge tube as described above, optionally, the end of the first scale is provided with a support frame, the support frame comprises a two-way threaded sleeve, a support block, a mounting block and a guide frame, the support block is in contact with the inner wall of the blast hole, the support block is provided with two, the opposite ends of the two support blocks are fixedly provided with threaded rods, the threaded rods are threadedly connected to the ends of the two-way threaded sleeve, the guide frame comprises a mounting frame, a limiting block and a driving rod, the outer surface of the center of the threaded rod is rotatably installed with a swivel, the opposite ends of the mounting block and the mounting frame are fixedly provided with connecting rods, and the other ends of the connecting rods are fixedly installed on the swivel.

[0012] In the combined shaped charge tube as described above, optionally, the limiting block is V-shaped and in contact with the outer surface of the first part, each group of the limiting block is provided with two, the two limiting blocks are staggered, the opposite surfaces of the limiting block are fixedly provided with sliding blocks, the two ends of the mounting frame are fixedly provided with sliding grooves, and the sliding blocks are slidingly installed in the sliding grooves.

[0013] In the combined shaped charge tube as described above, optionally, the driving rod is arranged in U shape, two driving rods are arranged staggeredly, the driving rods are slidingly installed in the mounting frame, the two ends of the driving rods are in contact with the bottom ends of two groups of same-side limiting blocks respectively, a rotating rod is threadedly connected to the top of the mounting frame, a moving rod is rotatably installed at the end of the threaded rod, push rods are fixedly installed at the two ends of the moving rod, the outer wall of the push rod is in contact with the end of the driving rod, and a stabilizing block is fixedly installed on the top surface of the mounting frame and in contact with the push rod.

[0014] In the combined shaped charge tube as described above, optionally, a first insertion slot is formed in the mounting block, the first scale ruler is inserted and installed in the insertion slot, a moving ring is slidingly installed on the connecting rod close to the mounting block, an insertion rod is fixedly installed on the moving ring, and a second insertion slot is formed at the end of the first scale ruler, the insertion rod being insertable in the second insertion slot.

[0015] The combined shaped charge tube of the utility model adopts inserting the second scale ruler with scale into the second groove, observing the scale on the scale ruler, can realize the interval of the accurate shaped charge tube, and can control the cutting direction of explosion by adjusting the displacement of the first scale ruler in the circumferential direction of the shaped charge tube. BRIEF DESCRIPTION OF DRAWINGS

[0016] The disclosure of the utility model will be more apparent with reference to the drawings. It should be understood that these drawings are only for illustrative purposes, and are not intended to limit the protection scope of the utility model. In the drawings:

[0017] Fig. 1 It is a structural schematic view of the embodiment one of the utility model;

[0018] Fig. 2 It is a structural schematic view of the shaped charge tube in the embodiment one of the utility model;

[0019] Fig. 3 It is a structural schematic view of the embodiment two of the utility model;

[0020] Fig. 4 It is a structural schematic view of the support frame in the embodiment two of the utility model;

[0021] Fig. 5 It is a structural schematic view of the mounting frame after being cut open in the embodiment two of the utility model;

[0022] Fig. 6 It is an internal structural schematic view of the second scale ruler in the embodiment two of the utility model;

[0023] Fig. 7 It is an end structural schematic view of the first scale ruler in the embodiment two of the utility model.

[0024] Reference numerals: 1. Concentrating tube; 1-1. Groove; 1-2. First groove; 1-3. Second groove; 2. Scale; 2-1. First scale; 2-11. Second insertion slot; 2-2. Second scale; 2-3. First part; 2-4. Second part; 2-41. Extension plate; 2-5. Third part; 2-6. Core rod; 2-7. Top plate; 3. Support frame; 3-1. Bidirectional threaded sleeve; 3-2. Support block 3-21, Threaded rod; 3-3, Mounting block; 3-31, First insertion slot; 3-32, Moving ring; 3-33, Insertion rod; 3-4, Guide frame; 3-41, Mounting frame; 3-42, Limiting block; 3-43, Drive rod; 3-44, Sliding block; 3-45, Sliding groove; 3-5, Rotating ring; 3-6, Connecting rod; 4, Rotating rod; 4-1, Moving rod; 4-2, Push rod; 4-3, Stabilizing block. Detailed Implementation

[0025] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] like Figs. 1-2 As shown in Embodiment 1, a combined energy-concentrating tube includes an energy-concentrating tube 1 and a scale 2. The energy-concentrating tube 1 has a groove 1-1, which includes a first groove 1-2 and a second groove 1-3. The first groove 1-2 is located between two V-shaped energy-concentrating grooves and is spaced at the same distance from the two V-shaped energy-concentrating grooves. There are two second grooves 1-3, which are mirror images of the two V-shaped energy-concentrating grooves on the side away from the first groove 1-2. The scale 2 includes a first scale 2-1 and a second scale 2-2. The first scale 2-1 can be inserted into the first groove 1-2, and the outer surface of the first scale 2-1 is in contact with the inner surface of the second groove 1-3. There are two second scales 2-2, which are respectively inserted into the two second grooves 1-3.

[0027] In use, insert two second scales 2-2 into two second grooves 1-3, and adjust the spacing between adjacent energy-concentrating tubes 1 by observing the scale on the second scales 2-2. After the spacing is adjusted, insert the first scale 2-1 into the first groove 1-2 so that the spacing between multiple energy-concentrating tubes 1 remains unchanged and relatively stable.

[0028] After the plurality of shaped charges 1 are assembled, the plurality of shaped charges 1 are inserted into the blast hole, and the spacing between adjacent shaped charges 1 is kept unchanged by the frictional force of the first scale 2-1 and the second scale 2-2 in the first groove 1-2 and the second groove 1-3 respectively when inserted;

[0029] After the insertion is completed, the orientation of the shaped charges 1 in the circumferential direction is controlled by adjusting the orientation of the first scale 2-1, so that the two V-shaped energy gathering grooves can be rotated to the required direction, ensuring the blasting accuracy.

[0030] The second scale 2-2 is the same size as the first scale 2-1, and the outer surface of the second scale 2-2 is in contact with the inner surface of the second groove 1-3.

[0031] When the first scale 2-1 and the second scale 2-2 are inserted, the shoulder of adjacent shaped charges 1 is kept unchanged by the frictional force of the first groove 1-2 and the second groove 1-3.

[0032] As shown in Figs. 3-7 In Example Two, the second scale 2-2 includes a first part 2-3, a second part 2-4, and a third part 2-5, two first parts 2-3 are provided, the two first parts 2-3 are V-shaped, the side surface of the first part 2-3 can be in contact with the inner surface of the second groove 1-3, the bottom surface of the two first parts 2-3 can be inserted and installed at both ends of the second part 2-4, the third part 2-5 is arranged between the two first parts 2-3 and above the second part 2-4, and the two ends of the third part 2-5 can be in contact with the inner surfaces of the two first parts 2-3 respectively.

[0033] When the outer surface of the first part 2-3 is in contact with the inner surface of the second groove 1-3, the second scale 2-2 can be tightly inserted into the second groove 1-3, and when the outer surface of the first part 2-3 is separated from the inner surface of the second groove 1-3, the second scale 2-2 can be pulled out of the second groove 1-3.

[0034] In use, first move the two first parts 2-3 towards opposite positions respectively, so that the side surface of the first part 2-3 can be in contact with the inner wall of the second groove 1-3, at this time, the third part 2-5 is located at the top end of the first part 2-3, which can prevent the two first parts 2-3 from approaching each other, and facilitate the insertion into the blast hole, so as to increase the frictional force between the second scale 2-2 and the second groove 1-3, and prevent the spacing between adjacent shaped charges 1 from changing when inserted;

[0035] When it is necessary to pull the second scale 2-2 out of the second groove 1-3, bring the two first parts 2-3 close to each other, and use the inclined surface on the first part 2-3 to press the third part 2-5 down, so that the second scale 2-2 can retract, so that the first part 2-3 is away from the inner wall of the second groove 1-3. This makes it easier for the second scale 2-2 to be removed when it is pulled out, and prevents the friction from changing the distance between adjacent energy-concentrating tubes 1 when the second scale 2-2 is pulled out.

[0036] Both ends of the second part 2-4 are fixedly installed with extension plates 2-41. The distance between the two extension plates 2-41 is greater than the length of the first part 2-3 and the third part 2-5. The extension plates 2-41 are threadedly connected with core rods 2-6. The outer wall of the core rods 2-6 is fixedly installed with top plates 2-7. The length of the top plates 2-7 is less than the length of the core rods 2-6. The top of the top plates 2-7 can contact the bottom surface of the third part 2-5.

[0037] The extension plate 2-41 can contact both ends of the third part 2-5 to prevent the two first parts 2-3 of the third part 2-5 from falling off. When the core rod 2-6 is rotated, the core rod 2-6 is displaced in the axial direction, which drives the top plate 2-7 to be displaced when rotating, moving the third part 2-5 in the radial direction of the energy-concentrating tube 1, so that the two first parts 2-3 can move away from each other and contact the inner wall of the second groove 1-3, so that the second scale 2-2 can be in close contact with the second groove 1-3. The core rod 2-6 can be locked in the circumferential direction by using the thread.

[0038] When it is necessary to pull out the second scale 2-2, rotate the core rod 2-6 in the opposite direction so that the end of the top plate 2-7 can move away from the third part 2-5, allowing the two first parts 2-3 to separate from the third part 2-5, so that the two first parts 2-3 can move closer to each other, thereby pulling out the second scale 2-2.

[0039] The end of the first scale 2-1 is provided with a support 3. The support 3 includes a bidirectional threaded sleeve 3-1, a support block 3-2, a mounting block 3-3, and a guide frame 3-4. The support block 3-2 can contact the inner wall of the borehole. There are two support blocks 3-2. The opposite ends of the two support blocks 3-2 are fixedly installed with threaded rods 3-21. The threaded rods 3-21 are threadedly connected to the end of the bidirectional threaded sleeve 3-1. The guide frame 3-4 includes a mounting frame 3-41, a limiting block 3-42, and a driving rod 3-43. A rotating ring 3-5 is rotatably installed on the outer surface of the center of the threaded rod 3-21. The opposite ends of the mounting block 3-3 and the mounting frame 3-41 are fixedly installed with connecting rods 3-6. The other end of the connecting rod 3-6 is fixedly installed on the rotating ring 3-5.

[0040] Before inserting the first scale 2-1 and the second scale 2-2 into the borehole, first install the ends of the first scale 2-1 and the second scale 2-2 onto the support 3. Then insert the shaped charge tube 1 into the borehole. After the orientation of the first scale 2-1 is adjusted, rotate the double-threaded sleeve 3-1 so that the two threaded rods 3-21 drive the support block 3-2 toward the inner wall of the borehole and make contact with the inner wall of the borehole. This allows the support 3 as a whole to move the first scale 2-1 and the second scale 2-2 to be stably installed inside the borehole.

[0041] The limiting block 3-42 is V-shaped and contacts the outer surface of the first part 2-3. There are two sets of limiting blocks 3-42, and each set has two limiting blocks 3-42. The two limiting blocks 3-42 are staggered. A sliding block 3-44 is fixedly installed on the opposite side of the limiting block 3-42. Both ends of the mounting bracket 3-41 are fixedly installed with sliding grooves 3-45. The sliding block 3-44 is slidably installed in the sliding grooves 3-45.

[0042] When the limiting blocks 3-42 on both sides approach each other, they can drive the two first parts 2-3 to approach each other, so that the second scale 2-2 can be stored, making it easy for the second scale 2-2 to be pulled out of the second groove 1-3. When the second scale 2-2 is pulled out of the second groove 1-3, it can restrict the second scale 2-2 to prevent the second scale 2-2 from deflecting when it is pulled out, which would cause the distance between adjacent energy-concentrating tubes 1 to change.

[0043] When the limiting blocks 3-42 on both sides are far apart, the first part 2-3 has enough space to move, allowing the two first parts 2-3 to move. When the first part 2-3 contacts the limiting block 3-42, it increases the friction between the second scale 2-2 and the support 3, making the insertion more stable.

[0044] The drive rod 3-43 is U-shaped, and there are two drive rods 3-43. The two drive rods 3-43 are staggered and are slidably installed in the mounting bracket 3-41. The two ends of the drive rod 3-43 are respectively in contact with the bottom ends of the two sets of limit blocks 3-42 on the same side. A rotating rod 4 is threadedly connected to the top of the mounting bracket 3-41. A moving rod 4-1 is rotatably installed at the end of the threaded rod 3-21. Push rods 4-2 are fixedly installed at both ends of the moving rod 4-1. The outer wall of the push rod 4-2 is in contact with the end of the drive rod 3-43. A stabilizing block 4-3 is fixedly installed on the top surface of the mounting bracket 3-41. The stabilizing block 4-3 is in contact with the push rod 4-2.

[0045] Rotating the rotating rod 4 drives the moving rod 4-1 to move, causing the ends of the push rod 4-2 and the driving rod 3-43 to move. When the outer surface of the push rod 4-2 contacts the driving rod 3-43, the push rod 4-2 continues to move, causing the two ends of the driving rod 3-43 to move away from each other, so that the driving rods 3-43 on both sides can rotate, so that the driving rods 3-43 on both sides can drive the two sets of limit blocks 3-42 on the same side to move synchronously, and allow the limit blocks 3-42 in the same group to move closer to each other, separating the first part 2-3 from the inner wall of the second groove 1-3, making it easier to pull out the second scale 2-2. At this time, the inner wall of the limit block 3-42 is in a close fit with the first part 2-3, preventing the second scale 2-2 from deflecting when it is pulled out, which would cause the distance between adjacent energy-concentrating tubes 1 to change.

[0046] Rotating the rotating rod 4 in the opposite direction causes the threaded rod 3-21 to drive the push rod 4-2 to move. When the inner surface of the push rod 4-2 contacts the end of the drive rod 3-43, continuing to move the push rod 4-2 will cause the two ends of the drive rod 3-43 to move closer to each other. This allows the drive rods 3-43 on both sides to drive the two sets of limit blocks 3-42 on the same side to move synchronously, and allows the limit blocks 3-42 in the same group to move away from each other, so that the first part 2-3 can separate from the limit block 3-42. This allows the first part 2-3 to contact the inner wall of the second groove 1-3, which makes it easier to keep the spacing of the energy-concentrating tube 1 unchanged during insertion.

[0047] The mounting block 3-3 has a first insertion slot 3-31, and the first scale 2-1 can be inserted into the insertion slot. A movable ring 3-32 is slidably installed on the connecting rod 3-6 near the mounting block 3-3. An insertion rod 3-33 is fixedly installed on the movable ring 3-32. The end of the first scale 2-1 has a second insertion slot 2-11, and the insertion rod 3-33 can be inserted into the second insertion slot 2-11.

[0048] Before inserting the first scale 2-1 into the first insertion slot 3-31, and slide the moving ring 3-32 to insert the insertion rod 3-33 into the second insertion slot 2-11, so that the first scale 2-1 can be locked axially with the mounting block 3-3, preventing the spacing between adjacent energy-concentrating tubes 1 from changing when the second scale 2-2 is pulled out.

[0049] Compared to Embodiment 1, Embodiment 2 has the ability to retrieve the two second scales 2-2 when inserted into the borehole, reducing the cost of use.

[0050] The technical scope of this utility model is not limited to the contents of the above description. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the scope of this utility model.

Claims

1. A combined shaped charge, characterized in that, The utility model provides a kind of scale ruler and energy-gathering tube, including energy-gathering tube (1) and scale ruler (2), recess (1-1) is opened in the energy-gathering tube (1), the recess (1-1) includes first recess (1-2) and second recess (1-3), the first recess (1-2) is located between two V-shaped energy-gathering grooves, and with the interval between two V-shaped energy-gathering grooves consistent, the second recess (1-3) is equipped with two, and mirror image is arranged on the side of two V-shaped energy-gathering grooves away from first recess (1-2), the scale ruler (2) includes first scale ruler (2-1) and second scale ruler (2-2), the first scale ruler (2-1) can be inserted in first recess (1-2), the outer surface of the first scale ruler (2-1) is attached with the inner surface of second recess (1-3), the second scale ruler (2-2) is equipped with two, and two the second scale ruler (2-2) is inserted in two second recess (1-3) respectively.

2. A combination shaped charge as defined in claim 1, wherein, The second scale ruler (2-2) is consistent with the size of the first scale ruler (2-1), and the outer surface of the second scale ruler (2-2) is attached with the inner surface of the second recess (1-3).

3. A combination shaped charge as defined in claim 1, wherein, The second scale ruler (2-2) includes a first part (2-3), a second part (2-4) and a third part (2-5), the first part (2-3) is provided with two, the two first parts (2-3) are V-shaped, the side surface of the first part (2-3) can be in contact with the inner surface of the second recess (1-3), and the bottom surfaces of the two first parts (2-3) can be inserted and installed at both ends of the second part (2-4), the third part (2-5) is arranged between the two first parts (2-3) and above the second part (2-4), and the two ends of the third part (2-5) can be in contact with the inner surfaces of the two first parts (2-3) respectively.

4. A combination shaped charge as defined in claim 3, wherein, When the outer surface of the first part (2-3) is in contact with the inner surface of the second recess (1-3), the second scale ruler (2-2) can be tightly inserted into the second recess (1-3), and when the outer surface of the first part (2-3) is separated from the inner surface of the second recess (1-3), the second scale ruler (2-2) can be pulled out of the second recess (1-3).

5. A combination shaped charge as defined in claim 3, wherein, Both ends of the second part (2-4) are fixedly installed with an extension plate (2-41), the distance between the two extension plates (2-41) is greater than the length of the first part (2-3) and the third part (2-5), a core rod (2-6) is threadedly connected to the extension plate (2-41), a top plate (2-7) is fixedly installed on the outer wall of the core rod (2-6), the length of the top plate (2-7) is less than the length of the core rod (2-6), and the top end of the top plate (2-7) can be in contact with the bottom surface of the third part (2-5).

6. A combination shaped charge as defined in claim 3, wherein, The end of the first scale (2-1) is provided with a support frame (3), the support frame (3) comprises a two-way threaded sleeve (3-1), a support block (3-2), a mounting block (3-3) and a guide frame (3-4), the support block (3-2) can be in contact with the inner wall of the blast hole, the support block (3-2) is provided with two, the opposite ends of the two support blocks (3-2) are fixedly installed with threaded rods (3-21), the threaded rods (3-21) are threadedly connected at the ends of the two-way threaded sleeve (3-1), the guide frame (3-4) comprises a mounting rack (3-41), a limiting block (3-42) and a driving rod (3-43), the outer surface of the center of the threaded rod (3-21) is rotatably installed with a swivel (3-5), the opposite ends of the mounting block (3-3) and the mounting rack (3-41) are fixedly installed with connecting rods (3-6), the other end of the connecting rod (3-6) is fixedly installed on the swivel (3-5).

7. A combined shaped charge as defined in claim 6, wherein The limiting block (3-42) is V-shaped and in contact with the outer surface of the first part (2-3), the limiting block (3-42) is provided with two groups, each group of the limiting block (3-42) is provided with two, the two limiting blocks (3-42) are staggered, the opposite faces of the limiting block (3-42) are fixedly installed with sliding blocks (3-44), the two ends of the mounting rack (3-41) are fixedly installed with sliding grooves (3-45), the sliding blocks (3-44) are slidingly installed in the sliding grooves (3-45).

8. A combination shaped charge as defined in claim 7, wherein, The driving rod (3-43) is U-shaped, the driving rod (3-43) is provided with two, the two driving rods (3-43) are staggered, the driving rod (3-43) is slidingly installed in the mounting rack (3-41), the two ends of the driving rod (3-43) are respectively in contact with the bottom ends of the limiting blocks (3-42) on the same side of the two groups, the upper portion of the mounting rack (3-41) is threadedly connected with a rotating rod (4), the end of the threaded rod (3-21) is rotatably installed with a moving rod (4-1), the two ends of the moving rod (4-1) are fixedly installed with push rods (4-2), the outer wall of the push rod (4-2) is in contact with the end of the driving rod (3-43), the top surface of the mounting rack (3-41) is fixedly installed with a stabilizing block (4-3), the stabilizing block (4-3) is in contact with the push rod (4-2).

9. A combination shaped charge as defined in claim 6, wherein, A first plug-in slot (3-31) is formed in the mounting block (3-3), the first scale (2-1) can be plug-in installed in the plug-in slot, a moving ring (3-32) is slidingly installed on the connecting rod (3-6) close to the mounting block (3-3), a plug-in rod (3-33) is fixedly installed on the moving ring (3-32), the end of the first scale (2-1) is provided with a second plug-in slot (2-11), the plug-in rod (3-33) can be plug-in installed in the second plug-in slot (2-11).

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