A new type of mortar cone type combined seat and its working method

Abstract

The application discloses a novel mortar conical combined seat, which comprises a conical main seat, a secondary seat and a tail ball clamp structure, wherein the large-diameter end face of the conical main seat is a front face, the small-diameter end face is a back face, the conical main seat is provided with a through hole along the axial direction from the front face to the back face, the through hole comprises an access section, a first mounting section and a second mounting section which are connected in sequence from the front face to the back face, the secondary seat can be mounted on the first mounting section by passing through the access section when the front face of the conical main seat faces upward, the secondary seat can be mounted on the second mounting section when the back face of the conical main seat faces upward, and a retaining hole is arranged on the secondary seat. The seat is firm in installation, light in weight, capable of being combined with a barrel for carrying, and adopting a combined seat new idea, that is, on the basis of a conical main seat, the seat can be used on two sides by turning the upper and lower faces of the conical main seat, thereby realizing dual use of urban pavement and sandy land, and better adapting to environmental changes.

Description

Technical Field

[0001] This invention relates to the field of mortar base plate technology, specifically a novel conical combined mortar base plate and its working method. Background Technology

[0002] A significant characteristic of mortars is their excellent mobility, making them ideal for portable urban warfare. The mortar base plate, as the device directly bearing the combined force of the mortar's barrel, relies on the elastic and plastic deformation of the soil to absorb recoil energy and control recoil movement. Therefore, the design of the mortar base plate determines the firing density and accuracy of the mortar. Existing mortar base plates require the excavation of standard firing positions to meet the requirements of recoil and return-to-base stability. Therefore, when conducting emergency firing without a firing position, the following two situations exist:

[0003] 1. When launching on hard surfaces such as cement floors, hard rock surfaces, or floor slabs, the contact between the base plate and the ground can usually be considered as point contact or line contact. The small contact area results in a large force on the base plate, which places high demands on the strength and rigidity of the base plate. The launch site also bears great pressure, which can damage the launch site and lead to poor launch stability, making it impossible to achieve continuous and stable launch.

[0004] 2. Emergency firing in medium-hard or soft soil conditions will result in a large recoil stroke, making it impossible to guarantee firing accuracy and continuous firing capability.

[0005] As the development trend of mortar base plates also moves towards lightweight design, the base plates of the M30, M29, and T62 mortars previously used by the US military all adopted a modular design to address the issue of transport weight. However, this still resulted in instability when firing on hard surfaces such as concrete. Therefore, ensuring both lightweight design and recoil stability are crucial requirements for base plate design when firing in various complex environments. Summary of the Invention

[0006] The purpose of this invention is to provide a novel conical combined mortar base plate and its working method, in order to solve the problem mentioned in the background art that traditional mortar base plates are mostly used on a single plane, which are greatly affected by the constitutive model of the firing position, and the constitutive model of the firing position has a significant impact on firing accuracy.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a novel conical combined base plate for mortars, comprising a conical main base plate, a secondary base plate, and a tail ball clamp structural component.

[0008] The conical main seat plate has a large-diameter end face as the front and a small-diameter end face as the back. The conical main seat plate has a through hole along the axial direction from the front to the back. The through hole includes an inlet / outlet section, a first mounting section, and a second mounting section connected in sequence from the front to the back. When the front of the conical main seat plate is facing up, the auxiliary seat plate can pass through the inlet / outlet section and be installed in the first mounting section. When the back of the conical main seat plate is facing up, the auxiliary seat plate can be installed in the second mounting section. The auxiliary seat plate is provided with a retaining socket. The tail ball clamping structure is provided on the retaining socket to fix the tail ball on the retaining socket.

[0009] Furthermore, the first mounting section gradually narrows from the front to the back of the conical main base plate, while the second mounting section gradually expands from the front to the back of the conical main base plate.

[0010] Furthermore, the first mounting segment and the second mounting segment are joined at their respective minimum diameters, and the minimum diameters of the two segments are the same.

[0011] Furthermore, the diameter of the inlet / outlet section is greater than the maximum diameter of the first mounting section.

[0012] Furthermore, the sub-mount plate can be mortised and tenoned with the first mounting section or the second mounting section.

[0013] Furthermore, the tail ball clamp structure includes a retaining ring L, a retaining ring R, two pairs of fastening bolts and fastening nuts. The retaining ring L and the retaining ring R are mortised on the sub-base plate. The retaining ring L and the retaining ring R can be mated together to form a ring structure. The two pairs of fastening bolts and fastening nuts are respectively set at the mating points of the retaining ring L and the retaining ring R.

[0014] Furthermore, the conical main seat plate has multiple vertical ribs arranged along the circumferential direction on its side, and multiple exhaust holes are opened at the large diameter end of the conical main seat plate.

[0015] Furthermore, vertical ribs are provided between adjacent vent holes, and reinforcing ribs are provided between the vent holes and the vertical ribs.

[0016] Furthermore, it also includes a rubber ring, which is mounted on the front surface of the conical main plate in a surface-to-surface contact manner.

[0017] A working method for the novel conical combined base plate of a mortar, as described above.

[0018] When firing conditions are favorable, the firing position is located in Class II soil, and there is sufficient time to set up the firing position, first dig a fortification according to the standard firing position, then connect the auxiliary base plate through the access section to the first installation section of the conical main base plate, place the conical main base plate face up in the fortification, adjust the firing angle and fire, after firing, first remove the auxiliary base plate, then remove the conical main base plate and withdraw from the firing position;

[0019] When firing conditions are poor and there is insufficient time to set up a firing position, or on hard soil, weathered rocks, pebbles, or soft soil, place the conical main base plate face down on a flat firing position surface. Install and connect the secondary base plate to the second mounting section of the conical main base plate, adjust the firing angle, and fire. After firing, separate the conical main base plate and the secondary base plate and withdraw from the firing position.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] (1) Multiple exhaust holes are designed on the conical main plate. When recoiling, the gas in the soil under the plate is compressed at high speed. The exhaust holes provide the shortest exhaust channel for the gas. The soil is tightly squeezed onto the vertical ribs. Therefore, the frictional resistance and adhesion of the soil to the vertical ribs are large during recoil, which helps to reduce recoil bounce and enhance recoil stability and shooting stability. Multiple vertical ribs and reinforcing ribs are distributed circumferentially around the conical main plate and under the plate. The two are arranged in an alternating manner. The reinforcing ribs can enhance the rigidity and strength of the main plate, while the vertical ribs can serve as support ribs for the working surface to improve the stability of recoil and recoil. At the same time, a rubber ring is added to the conical main plate to increase the friction coefficient between the plate and the ground, which can increase the shooting angle range and prevent the plate from sliding due to recoil when used in reverse. This helps to ensure shooting accuracy.

[0022] (2) The conical main base plate and the auxiliary base plate adopt a combined design. The conical main base plate has the same mounting holes on both sides. Therefore, the auxiliary base plate and any side of the mounting holes on both sides can be matched to form a fixed structure. This structure allows the conical main base plate to be used in both directions. The front side is suitable for Class II soil or medium-hard soil; the back side is suitable for hard soil, weathered stone, cobblestone or soft soil. This can increase the contact area between the base plate and the ground, which is beneficial for the recoil of the mortar. When the firing conditions are good and there is enough time to set up the firing position, the fortification is first dug according to the firing position standard. Then, the auxiliary base plate is installed and connected to the first mounting section of the conical main base plate through the access section. The conical main base plate is placed face up in the fortification. When the firing conditions are poor and there is not enough time to set up the firing position, the conical main base plate is placed face down on the flat surface of the firing position. The auxiliary base plate is then installed and connected to the second mounting section of the conical main base plate. Attached Figure Description

[0023] Figure 1 This is a front view of the overall structure of the mortar conical combined base plate of the present invention.

[0024] Figure 2 This is a schematic diagram of the reverse side of the overall structure of the mortar conical combined base plate of the present invention.

[0025] Figure 3This is a front view of the overall structure of the conical main seat plate of the present invention.

[0026] Figure 4 This is a schematic diagram of the reverse side of the overall structure of the conical main seat plate of the present invention.

[0027] Figure 5 This is a cross-sectional schematic diagram of the overall structure of the conical main seat plate of the present invention.

[0028] Figure 6 This is a schematic diagram of the overall structure of the conical main seat plate of the present invention.

[0029] Figure 7 This is a schematic diagram of the overall structure of the sub-seat plate of the present invention.

[0030] Figure 8 This is a schematic diagram of the sub-seat plate structure of the present invention.

[0031] Figure 9 This is a schematic diagram of the front structure of the conical combined base plate of the mortar of the present invention.

[0032] Figure 10 for Figure 9 A magnified view of a portion of the image.

[0033] Figure 11 This is a schematic diagram of the retaining ring structure of the present invention.

[0034] Figure 12 This is a schematic diagram of the mortar conical combined base plate of the present invention in proper mounting.

[0035] Figure 13 This is a schematic diagram of the reverse-mounted use of the conical combined base plate of the mortar according to the present invention.

[0036] In the diagram: 1. Conical main seat plate; 2. Sub-seat plate; 3. Retaining ring L; 4. Retaining ring R; 5. Fastening bolt; 6. Fastening nut; 7. Vertical rib; 8. Reinforcing rib; 9. Mounting hole; 10. Arthrottle socket; 11. Rubber ring. Detailed Implementation

[0037] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0038] Please see Figure 1-11This invention provides a novel conical composite base plate for mortars, comprising a conical main base plate 1, a secondary base plate 2, and a tail ball clamp structure (including a retaining ring L 3, a retaining ring R 4, a fastening bolt 5, and a fastening nut 6). The large-diameter end face of the conical main base plate 1 is the front, and the small-diameter end face is the back. The conical main base plate 1 has through holes axially formed from the front to the back (e.g., ...). Figure 5 The through hole, from front to back, includes an inlet / outlet section 12, a first mounting section 13, and a second mounting section 9 connected sequentially. When the conical main seat plate 1 is facing upwards, the secondary seat plate 2 can pass through the inlet / outlet section 12 and be mounted on the first mounting section 13 (e.g., ...). Figure 1 When the conical main seat plate 1 is facing upwards, the auxiliary seat plate 2 can be installed on the second mounting section 9 (e.g., ...). Figure 2 The auxiliary seat plate 2 is provided with a retaining socket 10, and the tail ball clamping structure is provided on the retaining socket 10 to fix the tail ball on the retaining socket 10. The conical main seat plate 1 is provided with vertical ribs 7 in the circumferential direction, and the main plate is designed with vent holes. The auxiliary seat plate 2 is mortised and tenoned to the conical main seat plate. The auxiliary seat plate 2 is designed with a retaining socket 10. The retaining rings L3 and R4 are mortised and tenoned on the auxiliary seat plate 2. The tail ball clamping structure is composed of fastening bolts 5 and fastening nuts 6. The tail ball clamping structure is fixed by adjusting the fastening bolts 5 and fastening nuts 6 to fix the shrinking retaining rings L3 and R4, thereby fixing the tail ball on the retaining socket B10. The rubber ring 11 is installed at the bottom of the reverse-mounted conical main seat plate 1 in a surface contact manner.

[0039] like Figure 2-5 The conical main plate 1 adopts a window-type design. Its main plate is a thin circular plate with a deep conical pit in the middle. The edge of the main plate has a reinforcing downward flange. The same first mounting section 13 and second mounting section 9 are set in the center of the bottom circle of the deep conical pit, which is conducive to the mortise and tenon connection with the auxiliary plate 2.

[0040] The conical main base plate 1 has six exhaust holes designed on its surface. The six exhaust holes are distributed in a circular array with the same diameter. When recoiling, the gas in the soil under the base plate is compressed at high speed. The six exhaust holes provide the shortest exhaust channel for the gas, which is conducive to consuming more recoil energy of the cannon, reducing recoil jump, enhancing recoil stability and improving firing stability. It also greatly improves the convenience of removing the conical main base plate after firing.

[0041] The conical main plate 1 has multiple single vertical ribs 7 and reinforcing ribs 8 distributed around the perimeter and on the lower circumference of the main plate. The vertical ribs 7 and reinforcing ribs 8 are arranged in an alternating manner. The vertical ribs 7 can serve as support ribs for the working surface to improve the stability of recoil and return. The reinforcing ribs 8 can enhance the rigidity and strength of the main plate.

[0042] The conical main base plate 1 has a tenon-and-mortise joint on the surfaces of the first mounting section 13 and the second mounting section 9. The sub-base plate 2 can be fitted with either side of the oppositely designed first mounting section 13 or second mounting section 9 to form a fixed connection structure. This structure allows the conical main base plate 1 to be used in both directions. The front side is suitable for firing positions where there is sufficient time to set up the firing position and the firing position is in medium-hard soil or Class II soil, which can ensure recoil stability and good service performance. The reverse side is suitable for direct use in hard soil, weathered rocks, pebbles or soft soil, which can increase the contact area between the base plate and the ground and is beneficial to the recoil of the mortar.

[0043] With the fastening bolts 5 and fastening nuts 6, the tail ball clamping structure, guided by the circular guide rails of retaining rings L3 and R4, fixes the tail ball in the socket of the sub-base plate 2. This structure is simple and reliable to install, and facilitates rapid firing.

[0044] A rubber ring 11 is installed on the conical main base plate 1 to prevent the base plate from sliding due to recoil when it is used in reverse, which helps to increase shooting accuracy.

[0045] The working method 1 of the mortar conical combined base plate of the present invention: the proper use of the base plate:

[0046] Combination Figure 12 Under ideal firing conditions and when firing conditions are favorable: Using Class II or medium-hard soil as the firing position, and with sufficient time for setting up the firing position, first excavate the fortification according to the standard firing position specifications. Then, connect the auxiliary mount 2 to the conical main mount 1 using mortise and tenon joints. Place the conical main mount 1 inside the fortification and adjust the firing angle for firing. After firing, first remove the auxiliary mount 2, then remove the conical main mount 1 and withdraw from the firing position. This installation method results in minimal lateral displacement during firing, ensuring the mortar's recoil and return-to-base stability, guaranteeing good firing stability, improving firing accuracy, and allowing for easy removal of the conical main mount from the fortification, thus improving serviceability.

[0047] Working Method 2: Reversing the mounting plate for use:

[0048] Combination Figure 13In non-ideal firing conditions, such as extreme firing positions (hard soil, weathered rocks, pebbles, or soft soil), or when there is insufficient time to set up the firing position, the conical main base plate 1 is placed upside down on a flat surface. The auxiliary base plate 2 is then mortise-and-tenon connected to the conical main base plate 1. The firing angle is adjusted before firing. After firing, the conical main base plate 1 and auxiliary base plate 2 are separated. This installation method is an emergency firing method that ensures the recoil and return-to-base stability of the mortar under certain firing conditions. The large contact surface area between the conical main base plate 1 and the firing position results in lower pressure on the firing position and reduced recoil displacement in soft sand. When firing on hard surfaces (such as concrete or steel plates), using a standard mounting method results in a very low coefficient of friction between the mounting and the ground, significantly limiting the firing angle (between 75° and 85°). Therefore, a reverse mounting method is used, utilizing rubber rings to increase the coefficient of friction between the base plate and the firing position, thereby increasing the contact friction and reducing the rigidity and strength requirements of the base plate, thus expanding the firing angle range. When firing on soft sand (such as swamps or beaches), using a standard mounting method results in reduced accuracy for the first few shots due to the large displacement of the base plate. Therefore, a reverse mounting method is used to increase the contact area with the ground, reducing the pressure of the base plate on the ground and decreasing the displacement of the base plate, thus increasing the stability during firing.

[0049] This invention features a robustly installed base plate, achieving lightweight design and allowing for easy transport in conjunction with the mortar barrel. It employs a novel modular base plate concept, designing a base plate based on a conical main base plate that can be flipped to allow for use on both paved urban roads and sandy terrain, thus better adapting to environmental changes. This invention achieves lightweight design while maintaining firing density and accuracy, as well as good recoil and return-to-base stability. It also significantly improves the mortar's operational mobility. Utilizing the modular connection characteristics of the base plate, the invention comprehensively optimizes and improves the mortar's base plate design.

[0050] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A conical composite base plate for a mortar, comprising a conical main base plate (1), a secondary base plate (2), and a tail ball clamp structure, characterized in that, The large-diameter end face of the conical main seat plate (1) is the front, and the small-diameter end face is the back. The conical main seat plate (1) has a through hole along the axial direction from the front to the back. The through hole includes an inlet / outlet section (12), a first mounting section (13), and a second mounting section (9) connected in sequence from the front to the back. When the front of the conical main seat plate (1) is facing up, the auxiliary seat plate (2) can pass through the inlet / outlet section (12) and be installed in the first mounting section (13). When the back of the conical main seat plate (1) is facing up, the auxiliary seat plate (2) can be installed in the second mounting section (9). The auxiliary seat plate (2) is provided with a mortise and tenon socket (10). The tail ball clamping structure is provided on the mortise and tenon socket (10) to fix the tail ball on the mortise and tenon socket (10). The first mounting section (13) gradually narrows from the front to the back of the conical main base plate (1), and the second mounting section (9) gradually expands from the front to the back of the conical main base plate (1). The tail ball clamp structure includes a retaining ring L (3), a retaining ring R (4), two pairs of fastening bolts (5) and fastening nuts (6). The retaining ring L (3) and the retaining ring R (4) are tenoned on the sub-base plate (2). The retaining ring L (3) and the retaining ring R (4) can be mated together to form a ring structure. The two pairs of fastening bolts (5) and fastening nuts (6) are respectively set at the mating points of the retaining ring L (3) and the retaining ring R (4).

2. The mortar conical composite base plate according to claim 1, characterized in that, The first mounting segment (13) and the second mounting segment (9) are joined at their respective minimum diameters and the minimum diameters of the two segments are the same.

3. The mortar conical composite base plate according to claim 1, characterized in that, The diameter of the inlet / outlet section (12) is greater than the maximum diameter of the first installation section (13).

4. The mortar conical composite base plate according to claim 1, characterized in that, The sub-seat plate (2) can be mortised and tenoned with the first mounting section (13) or the second mounting section (9).

5. The mortar conical composite base plate according to any one of claims 1-4, characterized in that, The conical main seat plate (1) has multiple vertical ribs (7) arranged along the circumferential direction on its side, and multiple exhaust holes are opened at the large diameter end of the conical main seat plate (1).

6. The mortar conical composite base plate according to claim 5, characterized in that, A vertical rib (7) is provided between adjacent exhaust holes, and a reinforcing rib (8) is provided between the exhaust hole and the vertical rib (7).

7. The mortar conical composite base plate according to any one of claims 1-4, characterized in that, It also includes a rubber ring (11), which is mounted on the front surface of the conical main plate (1) in a surface-to-surface manner.

8. The method for operating the mortar conical combined base plate according to any one of claims 1-7, characterized in that, When firing conditions are good, the firing position is in Class II soil, and there is sufficient time to set up the firing position, first dig the fortification according to the firing position standard, then connect the auxiliary base plate (2) through the access section (12) to the first installation section (13) of the conical main base plate (1), place the conical main base plate (1) face up in the fortification, adjust the firing angle and fire, after firing, first take out the auxiliary base plate (2), then take out the conical main base plate (1) and leave the position; When firing conditions are poor and there is not enough time to set up a firing position, or on hard soil, weathered stone, cobblestone, or soft soil, place the conical main base plate (1) face down on a flat surface, install the auxiliary base plate (2) and the second mounting section (9) of the conical main base plate (1) together, adjust the firing angle and fire. After firing, separate the conical main base plate (1) and the auxiliary base plate (2) and leave the firing position.

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