A target butting structure for civilian shooting ranges

Abstract

This utility model provides a target embankment structure for civilian shooting ranges. Installed behind the shooting target, it provides a mounting foundation for the wall via a base, enhancing the overall stability of the wall and the site adaptability of the device, reducing the footprint, and providing good protection through the combined action of the upper and lower projectile receiving parts. The drainage channel prevents the upper and lower projectile receiving parts from being soaked by water after rain, thus affecting their performance. Furthermore, the detachable connection of both the upper and lower projectile receiving parts to the wall makes the device easy to maintain and durable, thus promoting the construction and development of civilian shooting ranges.

Description

Technical Field

[0001] This utility model relates to the technical field of range equipment applications, and in particular to a target embankment structure for civilian shooting ranges. Background Technology

[0002] In the construction and operation of civilian shooting ranges, the target embankment serves as a key protective facility. Its main function is to form a solid protective barrier through a physical structure, effectively blocking bullet penetration and ensuring that the bullet can decelerate rapidly after entering the range, thereby avoiding the risk of accidental firing due to ricochet or penetration, and ensuring the safe isolation of the shooting area from the surrounding environment.

[0003] Conventional civilian shooting range construction typically involves selecting a suitable mountain as a natural target. However, this method of excavating into a mountainside imposes extremely stringent requirements on site selection. A sufficiently high natural mountain must exist within the construction site's boundary before excavation can proceed. After excavation, significant resources are required for slope stabilization and protection, increasing not only the amount of support work and land acquisition but also damaging the original ecological environment. Furthermore, construction sites meeting these conditions are usually located in remote suburbs or mountainous areas, far from the residences of shooting enthusiasts, with limited transportation access. This undoubtedly increases travel and time costs, which is extremely detrimental to the daily operation and development of civilian shooting ranges.

[0004] On the other hand, for civilian shooting ranges in plains areas, due to the lack of natural hillsides, earthen dikes are typically constructed using artificial filling methods. To ensure the safety and stability of these dikes, natural slopes on both sides are required, resulting in an excessively large land area and further increasing the land acquisition scope. In situations with limited space, this type of dike construction plan may even be rejected outright, severely hindering the construction and development of civilian shooting ranges. Moreover, the slopes of these dikes are usually protected with grass, but prolonged exposure to bullet impacts and rainwater erosion can easily cause the slopes to loosen, leading to soil erosion problems, making maintenance extremely difficult, and compromising the effectiveness of protection.

[0005] It is evident that the existing civilian shooting range target embankment design has significant shortcomings in terms of site adaptability, protective effect, land area, and maintenance costs. Utility Model Content

[0006] The main purpose of this utility model is to provide a target embankment structure for civilian shooting ranges, so as to solve the problems that the existing target embankment forms for civilian shooting ranges have obvious deficiencies in terms of site adaptability, protective effect, land area, and maintenance cost.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A target embankment structure for a civilian shooting range, installed behind a shooting target, the target embankment structure comprising:

[0009] The base is a block structure and is cast above the ground.

[0010] The wall is a block structure extending horizontally, cast on the base, with the upper part of the structure facing the target being a vertical surface and the lower part of the structure facing the target being an inclined surface, and the bottom thickness of the lower part of the structure being greater than its top thickness.

[0011] The upper receiving part is an elastic plate that can be detachably distributed on the side of the upper part of the wall facing the shooting target;

[0012] The lower receiving part is an elastic element, arranged in the horizontal direction and having a layered structure in the height direction. It is detachably installed on the side of the lower part of the wall structure facing the shooting target. The upper end of the lower receiving part is in contact with the lower end of the upper receiving part.

[0013] A drainage channel is installed between the ground and the lower receiving part. The drainage channel has an opening at the top, one end of the drainage channel is closed and the other end is open, and the internal size of the opening is larger than the lower cross-sectional size of the lower receiving part.

[0014] As a further improvement of this utility model, the upper impact-bearing part includes autoclaved aerated concrete blocks or rubber.

[0015] As a further improvement of this utility model, the lower receiving part includes multiple layers of tires arranged along the height direction;

[0016] Each layer of tires includes a row of buffer tires arranged in the same horizontal direction;

[0017] The adjacent buffer tires are in close contact and fixedly connected;

[0018] Each of the buffer tires is fixedly connected to the lower part of the wall structure facing the side of the shooting target;

[0019] The inner annular circle of the buffer tire is located above the area of ​​the opening.

[0020] As a further improvement of this utility model, the buffer tire is filled with gravel.

[0021] As a further improvement of this utility model, each layer of tires also includes a second row of tires;

[0022] The second row of tires includes a row of resilient tires arranged in the same horizontal direction;

[0023] The receiving tire is located on the side of the buffer tire facing the firing target;

[0024] The adjacent impact-bearing tires are in close contact and fixedly connected;

[0025] Each of the impact tires is in contact with and fixedly connected to at least one of the buffer tires;

[0026] The inner annular circle of the impact-bearing tire is located above the area of ​​the opening.

[0027] As a further improvement of this utility model, the buffer tire is filled with gravel.

[0028] As a further improvement of this utility model, a discharge plate chain is installed at the upper opening of the drainage trough;

[0029] The unloading plate chain moves along the drainage direction of the drainage groove towards the lower receiving part;

[0030] Each unit plate of the unloading plate chain has a water passage hole.

[0031] As a further improvement of this utility model, the water passage hole is opened along the height direction.

[0032] As a further improvement of this utility model, a receiving groove is pre-set at the lower part of the wall;

[0033] The power unit of the unloading plate chain is installed in the receiving tank.

[0034] This utility model provides a target embankment structure for civilian shooting ranges, installed behind the shooting target. The target embankment structure includes: a base, which is a block structure cast above the ground; a wall, which is a block structure extending horizontally, cast on the base, with its upper part facing the side of the shooting target being a vertical surface and its lower part facing the side of the shooting target being an inclined surface, the bottom thickness of the lower part being greater than its top thickness; and an upper projectile receiving part, which is an elastic plate that can be detachably distributed throughout the wall. The upper structure faces the side of the shooting target; the lower receiving part is an elastic element, arranged horizontally and having a layered structure along the height direction, and is detachably installed on the side of the lower structure of the wall facing the shooting target, with the upper end of the lower receiving part contacting the lower end of the upper receiving part; a drainage channel is installed between the ground and the lower receiving part, with an opening at the top, one end of the drainage channel being closed and the other end being open, and the internal dimension of the opening being larger than the lower cross-sectional dimension of the lower receiving part. The device provided by this utility model provides an installation foundation for the wall through the base, which can enhance the overall stability of the wall and the site adaptability of the device, reduce the footprint, and provide good protection under the combined action of the upper and lower projectile receiving parts. Furthermore, the setting of drainage channels prevents the upper and lower projectile receiving parts from being soaked by water after rain, thus affecting their performance. At the same time, since both the upper and lower projectile receiving parts are detachably connected to the wall, the device is easy to maintain and durable, thereby promoting the construction and development of civilian shooting ranges. Attached Figure Description

[0035] Figure 1 A schematic diagram of the overall structure of a target embankment structure for a civilian shooting range provided by this utility model;

[0036] Figure 2 A schematic diagram of the unloading plate chain and drainage ditch of a target embankment structure for a civilian shooting range provided by this utility model;

[0037] Figure 3 A schematic diagram of a drainage channel for a target embankment structure used in a civilian shooting range, provided by this utility model;

[0038] Figure 4 A schematic diagram of the unloading plate chain for a target embankment structure used in a civilian shooting range, provided by this utility model;

[0039] Figure 5 for Figure 4 Enlarged view of part A;

[0040] Labeling explanation: 1. Base; 2. Wall; 3. Drainage channel; 4. Upper impact-bearing part; 5. Buffer tire; 6. Impact-bearing tire; 7. Unloading plate chain; 8. Material plate. Detailed Implementation

[0041] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0042] A target embankment structure for civilian shooting ranges, installed behind the shooting target, such as... Figure 1 As shown, the target embankment structure includes: a base 1, which is fixedly cast below the ground; a wall 2, which is a horizontal block structure cast on the base 1, with its upper part facing the target as a vertical surface and its lower part facing the target as an inclined surface, the bottom thickness of the lower part being greater than its top thickness; an upper receiving part 4, which is an elastic plate that can be detachably distributed on the upper part of the wall 2 facing the target; a lower receiving part, which is an elastic element arranged horizontally and is a layered structure along the height direction, and can be detachably installed on the lower part of the wall 2 facing the target, with the upper end of the lower receiving part contacting the lower end of the upper receiving part 4; and a drainage trough 3, which is installed between the ground and the lower receiving part, with an opening at the top, one end of the drainage trough 3 being closed, and the closed end of the drainage trough 3 being higher than the other end of the drainage trough 3, the internal dimension of the opening being larger than the lower cross-sectional dimension of the lower receiving part. In this embodiment, the drainage trough 3 is made of a rigid material, preferably stainless steel.

[0043] The foundation and wall 2 are gravity-type, and can be cantilevered or buttress-type depending on the actual situation. The material can be reinforced concrete or masonry depending on the height. In this embodiment, both the foundation and wall 2 are reinforced concrete. A casting pit is dug in the ground, and the foundation is cast in the casting pit. Wall 2 is cast on the upper surface of the foundation. The upper part of wall 2 is a rectangular block arranged vertically, and the lower part is a right-angled trapezoidal block arranged horizontally. The lower edge of the upper part of wall 2 facing the target coincides with the upper edge of the lower part of wall 2 facing the target. The upper part of wall 2 facing away from the target is coplanar with the lower part of wall 2 facing away from the target. The upper part of wall 2 is a low-probability impact area, and the lower part is a concentrated impact area. Wall 2 is a solid rigid structure that blocks projectiles and is the main supporting structure of the target embankment. The high strength of reinforced concrete ensures that projectiles cannot penetrate, ensuring the safety of the surrounding environment. The shape of wall 2 has been verified for anti-slip stability, anti-overturning stability, base bearing capacity and cross-sectional stress, meeting safety requirements and occupying a small area. The sides of wall 2 facing the target in the concentrated and low-probability impact areas are reserved platforms, which are used to build the lower impact-receiving part and the upper impact-receiving part 4, respectively.

[0044] The upper impact-receiving section 4 comprises autoclaved aerated concrete (AAC) blocks or rubber. In this embodiment, AAC blocks are selected. The thickness can be adjusted according to actual usage requirements; in this embodiment, a thickness of 50cm is selected. The length and height of the AAC blocks should be such that two workers can easily move them. The AAC blocks are used to protect areas on the upper part of the target embankment where the probability of impact is low during daily use. Their main function is to absorb projectiles and dissipate energy, preventing projectiles from damaging the target embankment concrete and preventing ricochets.

[0045] Autoclaved aerated concrete (AAC) blocks are porous concrete products manufactured through a complex process. Similar to a semi-rigid, semi-flexible structure, when a projectile penetrates, it rapidly compresses the pore structure, causing energy diffusion and dissipation, ultimately remaining within the AAC block. Its large volume and light weight allow for rapid construction and convenient replacement and maintenance. AAC has a relatively low modulus of elasticity, typically between 0.147 and 0.245 × 10⁴ MPa, only one-tenth that of ordinary concrete. This low modulus of elasticity results in greater deformation of AAC compared to ordinary concrete under the same load. Furthermore, AAC has a lower creep coefficient, typically between 0.8 and 1.2, while the creep coefficient of ordinary concrete is between 1 and 4. This means that under the same stress state, AAC exhibits less creep than ordinary concrete.

[0046] In this embodiment, the installation method of the autoclaved aerated concrete (AAC) blocks is not limited, as long as it can achieve the installation of the AAC blocks and the wall 2, and realize the function of the AAC blocks. This embodiment provides an installation method: Before pouring the concrete of the wall 2, a hot-dip galvanized steel plate (thickness ≥ 5 mm) is pre-embedded at the designed position on the upper part of the wall 2 facing the shooting target. Anchor bars (such as Φ8-Φ12, length ≥ 150 mm) are welded to the side of the galvanized steel plate away from the shooting target, and the anchor bars are poured into the concrete to enhance the anchoring. Welded joints or bolt holes are reserved on the surface of the galvanized steel plate, and then the AAC blocks are connected by welding steel bars or bolts. A groove is made in the AAC block, and a U-shaped galvanized steel plate (thickness 2-3 mm) is inserted. The two ends of the U-shaped galvanized steel plate are fixedly connected to the galvanized steel plate with expansion bolts. The groove is filled with an elastic material (such as polyurethane foam) to allow slight deformation and reduce stress.

[0047] The lower receiving section includes multiple layers of tires arranged along the height direction; each layer of tires includes a row of buffer tires 5 arranged in the same horizontal direction; adjacent buffer tires 5 are in close contact and fixedly connected; each buffer tire 5 is fixedly connected to the side of the lower structure of the wall 2 facing the firing target; the inner annular circle of the buffer tire 5 is located above the opening. The buffer tires 5 are filled with gravel. Each layer of tires also includes a second row of tires; the second row of tires includes a row of receiving tires 6 arranged in the same horizontal direction; the receiving tires 6 are located on the side of the buffer tires 5 facing the firing target; adjacent receiving tires 6 are in close contact and fixedly connected; each receiving tire 6 is in contact with and fixedly connected to at least one buffer tire 5; the inner annular circle of the receiving tire 6 is located above the opening. The buffer tires 5 are filled with gravel. The connections between the buffer tires 5 and the receiving tires 6 and other external structures are all fixedly connected by bolts, that is, adjacent buffer tires 5, adjacent receiving tires 6, buffer tires 5 and receiving tires 6, and buffer tires 5 and wall 2 are all fixedly connected by bolts.

[0048] In this embodiment, the buffer tires 5 and the projectile-receiving tires 6 are used to protect the area at the bottom of the target embankment where projectiles are concentrated during daily use. Their main function is to absorb and dissipate the energy of the projectiles, preventing them from damaging the concrete of the target embankment and preventing ricochets. The buffer tires 5 and the projectile-receiving tires 6 are arranged in an alternating pattern to prevent projectiles from passing between single layers of tires, thus avoiding damage to the concrete of the target embankment and ricochets. The buffer tires 5 and the projectile-receiving tires 6 are made of the same size and are made of recycled tires. The spaces between and inside the tires are filled with gravel to enhance the stability and energy dissipation effect of the tire wall and to facilitate drainage. The tires can be quickly replaced and maintained depending on their wear and tear. Small or medium-sized tires can be used, and for large tires, a single row of buffer tires 5 can be constructed.

[0049] The buffer tires 5 and the projectile-receiving tires 6 are arranged in layers along the height direction, following the inclination of the lower part of the wall 2 towards the target. The buffer tires 5 and projectile-receiving tires 6 in the same layer are staggered. The buffer tires 5 in different layers and the projectile-receiving tires 6 in different layers are arranged along the inclination of the lower part of the wall 2 towards the target, facilitating drainage after or during rain. In this embodiment, the vertical projection of the lower openings of the buffer tires 5 and projectile-receiving tires 6 is located within the opening of the drainage pipe. Furthermore, each layer has one more buffer tire 5 than projectile-receiving tire 6, thus forming a staggered arrangement, reducing the footprint of the tires and increasing the support for the projectile-receiving tires 6.

[0050] In this embodiment, as Figure 3 As shown, the drainage trough 3 is a strip-shaped trough structure, installed along the extension direction of the wall 2 under the buffer tire 5 and the projectile-receiving tire 6. Specifically, it adopts a structure with a fully open top, one open end, and all other sides closed. That is, the drainage trough 3 has side plates on both the side facing the target and the side facing away from the target. The upper surfaces of both the side plates are in contact with the lower side of the projectile-receiving part. To facilitate drainage, the closed end of the drainage trough 3 is set higher than the open end.

[0051] like Figure 2 and Figure 4 As shown, a discharge plate chain 7 is installed at the upper opening of the drainage trough 3; the discharge plate chain 7 moves along the drainage direction of the drainage trough 3 towards the lower receiving part; each unit plate of the discharge plate chain 7 has a water passage hole. The water passage hole is opened along the height direction. A receiving groove is pre-set at the lower part of the wall 2; the prime mover unit of the discharge plate chain 7 is installed in the receiving groove.

[0052] The unloading plate chain 7 is installed on the side plate of the drainage trough 3 facing the target and the side plate facing away from the target. The rotating shaft of the unloading plate chain 7 is rotatably connected to the side plate of the drainage trough 3 via bearings. The power unit of the unloading plate chain 7 is fixedly installed on the outside of the side plate of the drainage trough 3 facing away from the target by bolts. In this embodiment, the power unit of the unloading plate chain 7 is a motor and a reducer. To facilitate the connection of the motor to power, the receiving groove is located on the side of the wall 2, corresponding to the end of the drainage trough 3. The motor is installed in the receiving groove.

[0053] To facilitate the flow of rainwater through the unloading plate chain 7 into the drainage trough 3, in this embodiment, the unloading plate chain 7 is constructed using two annular chains and one annular plate chain composed of multiple continuously rotating unit plates. The annular rings of the plate chain are the same size as the annular rings of the chain. The two chains are located on opposite sides of the plate chain, and the rotating shafts inside the two chains are fixedly connected to the rotating shafts inside the plate chain. Each unit plate is a strip plate, and each strip plate has water passage holes. When there is water inside the tire, the water can flow through the lower opening of the tire into the unloading plate chain 7, and then through the water passage holes into the drainage trough 3.

[0054] To prevent excessive length of the unloading plate chain 7 from causing deformation of the internal rotating shaft, this embodiment uses one driving roller and two driven rollers for the unloading plate chain 7. The driving roller is connected to the output end of the reducer, and the two driven rollers are located in the middle and the other end of the unloading plate chain 7, respectively. In particular, the driven roller located in the middle of the unloading plate chain 7 can provide support for the unloading plate chain 7.

[0055] To avoid bending of the rotating shaft due to excessive width of the unloading plate chain 7, multiple sets of unloading plate chains 7 can be configured. In this embodiment, two sets of unloading plate chains 7 are selected, arranged parallel to each other at the opening of the drainage trough 3, and sharing the same prime mover unit. Each set of unloading plate chains 7 has support plates on both sides. The driving rollers of the two sets of unloading plate chains 7 can be the same drive shaft, or two drive shafts connected together by a coupling, the specific form is not limited. In this embodiment, the driving rollers are selected as the same drive shaft. One end of the driving roller is keyed to the output end of the reducer, and the other end passes sequentially through the side plate of the drainage trough 3 facing away from the shooting target, the support plate of the unloading plate chain 7 facing away from the shooting target, the support plate of the unloading plate chain 7 facing the shooting target, and the side plate facing the shooting target.

[0056] like Figure 5 As shown, to prevent gravel from falling from the buffer tire 5 and the impact tire 6 during filling or normal use after installation, and to prevent the gravel from moving during unloading, multiple material plates 8 perpendicular to the outer periphery of the unloading chain 7 are provided on its outer circumference. The height of these material plates is less than the distance between the outer periphery of the unloading chain 7 and the lower surface of the impact-receiving part. The multiple material plates 8 are arranged at equal intervals; in this embodiment, the interval size is the lateral outer diameter of one tire. When gravel is filled or subjected to impact during use, the gravel will move towards the unloading chain 7, but due to the presence of the material plates 8, it will be blocked and will not continue to move. When unloading the gravel, due to the compression between the gravel and between the gravel and the tire, the gravel is not easily moved. At this time, the material plates 8 can push the gravel towards the open end of the drainage trough 3, thereby completing the unloading of the gravel. Afterwards, the buffer tire 5 and the impact tire 6 are unloaded.

[0057] The specific embodiments of the utility model have been described in detail above, but they are only examples, and the utility model is not limited to the specific embodiments described above. For those skilled in the art, any equivalent modifications or substitutions to the utility model are also within the scope of the utility model. Therefore, all equivalent transformations, modifications, and improvements made without departing from the spirit and principles of the utility model should be covered within the scope of the utility model.

Claims

1. A target embankment structure for a civilian shooting range, installed behind the shooting target, characterized in that, The target embankment structure includes: The base (1) is a block structure and is cast above the ground; The wall (2) is a block structure extending in the horizontal direction, cast on the base (1), and the upper part of the structure facing the target is a vertical surface, the lower part of the structure facing the target is an inclined surface, and the bottom thickness of the lower part of the structure is greater than the top thickness. The upper receiving part (4) is an elastic plate that can be detachably distributed on the side of the upper part of the wall (2) facing the shooting target. The lower receiving part is an elastic element, arranged in the horizontal direction and in a layered structure in the height direction, and can be detachably installed on the side of the lower part of the wall (2) facing the shooting target. The upper end of the lower receiving part is in contact with the lower end of the upper receiving part (4). A drainage trough (3) is installed between the ground and the lower receiving part. The drainage trough (3) has an opening at the top. One end of the drainage trough (3) is closed and the other end is open. The internal size of the opening is larger than the lower cross-sectional size of the lower receiving part.

2. The target embankment structure for a civilian shooting range according to claim 1, characterized in that, The upper impact-bearing part (4) includes autoclaved aerated concrete blocks or rubber.

3. The target embankment structure for a civilian shooting range according to claim 1, characterized in that, The lower impact-receiving part includes multiple layers of tires arranged along the height direction; Each layer of tires includes a row of buffer tires arranged in the same horizontal direction (5); The adjacent buffer tires (5) are in close contact and fixedly connected; Each of the buffer tires (5) is fixedly connected to the lower part of the wall (2) facing the side of the shooting target; The inner annular circle of the buffer tire (5) is located above the area of ​​the opening.

4. The target embankment structure for a civilian shooting range according to claim 3, characterized in that, The buffer tire (5) is filled with gravel.

5. A target embankment structure for a civilian shooting range according to claim 3, characterized in that, Each layer of tires also includes a second row of tires; The second row of tires includes a row of bullet-loaded tires (6) arranged in the same horizontal direction; The receiving tire (6) is located on the side of the buffer tire (5) facing the firing target; The adjacent elastic tires (6) are in close contact and fixedly connected; Each of the impact tires (6) is in contact with and fixedly connected to at least one of the buffer tires (5); The inner annular circle of the impact tire (6) is located above the area of ​​the opening.

6. The target embankment structure for a civilian shooting range according to claim 5, characterized in that, The buffer tire (5) is filled with gravel.

7. A target embankment structure for a civilian shooting range according to claim 4 or 6, characterized in that, A discharge plate chain (7) is installed at the upper opening of the drainage trough (3); The unloading plate chain (7) moves along the drainage direction of the drainage groove (3) towards the lower receiving part; Each unit plate of the unloading plate chain (7) has a water passage hole.

8. A target embankment structure for a civilian shooting range according to claim 7, characterized in that, The water passage is opened along the height direction.

9. A target embankment structure for a civilian shooting range according to claim 7, characterized in that, The lower part of the wall (2) is pre-set with a receiving groove; The power unit of the unloading plate chain (7) is installed in the receiving groove.

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