CN220170077U - Multifunctional bullet receiving target - Google Patents

Abstract

The utility model relates to the technical field of bullet receiving targets for testing, in particular to a multifunctional bullet receiving target. This multi-functional bullet target that connects includes: the support columns are arranged in two and vertically opposite to each other; the upper part of the support column is provided with a telescopic end which can be used for adjusting the height in an up-and-down telescopic way; the two cross beams are horizontally arranged between the two support columns, two ends of one cross beam are respectively connected with the top of the telescopic end, and two ends of the other cross beam are respectively connected with the lower parts of the telescopic ends of the support columns; the length of the cross beam can be adjusted in a telescopic way; two support columns and two cross beams enclose a mounting frame; the test board is arranged in the mounting frame and is fixed through the first fixing device; and the test paper is tiled on one surface of the test board and is fixed through the second fixing device. The multifunctional bullet receiving target at least solves the problems that the pine board is inconvenient to assemble and disassemble and the experimental time is often prolonged.

Description

Multifunctional bullet receiving target

Technical Field

The utility model relates to the technical field of bullet receiving targets for testing, in particular to a multifunctional bullet receiving target.

Background

When the police uses gun to deal with sudden case of storm, because of lacking theory and experimental study related to the situation that crime suspects are behind obstacles, the police cannot accurately make prejudgment on shooting effect and whether people or innocent masses are injured by the shooting.

In order to test the killing force of the bullet after the obstacle shooting, a police gun with the obstacle shooting experiment is carried out, and according to the calculation of the Demar formula, a test board capable of being provided with three layers of pine boards with the length of 2.54cm is needed to be used as a bullet receiving target.

Through research on the existing bullet receiving targets in China at present, the bullet receiving targets are generally composed of a plurality of wooden or metal members, and are simple in material, crude in structure, inconvenient to install, uneven in load and unstable in structure; moreover, because the experimental design is different, the length and width specifications of the pine board in each experiment are possibly inconsistent, and the test board needs to be replaced in each experiment, so that the test board of the existing bullet receiving target is inconvenient to assemble and disassemble, and the experimental time is often prolonged. The project researchers perform a large number of multi-angle shooting experiments with barriers, accumulate a large number of experiences, and finally design the bullet receiving target through repeated modification according to experimental conditions and specific conditions.

Disclosure of Invention

The utility model aims at: the multifunctional bullet receiving target at least solves the problems that the test board is inconvenient to assemble and disassemble and the experimental time is often prolonged.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

multifunctional bullet receiving target, comprising: the two support columns are arranged and vertically face to face; the upper part of the support column is provided with a telescopic end capable of adjusting the height in an up-and-down telescopic manner; the two cross beams are horizontally arranged between the two support columns, two ends of one cross beam are respectively connected with the top of the telescopic end, and two ends of the other cross beam are respectively connected with the lower parts of the telescopic ends of the support columns; the length of the cross beam can be adjusted in a telescopic way; the two support columns and the two cross beams form a mounting frame; the test board is arranged in the mounting frame and is fixed through a first fixing device; and the test paper is tiled on one surface of the test board and is fixed through a second fixing device.

The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the paper roll placing device is at least provided with one paper roll placing device and is arranged on one of the support columns; the paper roll placement device includes: the support seat is arranged on the support column; the connecting seat is detachably arranged on the supporting seat; the supporting plate is rotatably arranged on the connecting seat, the supporting plate is horizontally arranged, the supporting plate is vertical to a rotating shaft connected with the connecting seat, and a plug shaft extending vertically upwards is arranged on the supporting plate.

The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the support seat is provided with a vertical positioning hole, and the connecting seat is provided with a positioning shaft which can be inserted into the positioning hole; the support seat is provided with a first jacking screw which is in threaded fit with the support seat and is abutted against the side part of the positioning shaft after penetrating into the positioning hole; the supporting disc is connected with the connecting seat through a bearing.

The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the paper roll placing devices are arranged in two, are respectively and correspondingly arranged on the two supporting columns, and the position height of one paper roll placing device is higher than that of the other paper roll placing device.

The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the lower extreme level of support column is provided with the backup pad, the backup pad is perpendicular to support column direction of height and two simultaneously the support column direction of arranging, the backup pad with be provided with the diagonal brace between the support column.

The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the front end and the rear end of the supporting plate are respectively provided with universal casters with brakes.

The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the universal casters are arranged on the supporting plate in a lifting manner; when the universal casters are lifted, the supporting wheels of the universal casters are positioned on the supporting plates.

The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the first fixing device comprises a plurality of clamping seats provided with U-shaped grooves, wherein the clamping seats are respectively arranged in the directions of two ends of the cross beam, the top direction of the telescopic end, the direction of the support column close to the cross beam and the position of the support column close to the telescopic end; the clamping seats are arranged in the mounting frame, and the openings of the U-shaped grooves face to the inner side of the mounting frame; the outer edge of the test board is embedded in the U-shaped groove.

The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the first fixing device comprises a plurality of stop blocks which are respectively arranged in the directions of the two ends of the cross beam, the top direction of the telescopic end, the direction of the support column close to the cross beam and the position of the support column close to the telescopic end; the stop block is arranged on one side of the support column and one side of the transverse beam in the width direction respectively, a movable block opposite to the stop block in one direction is arranged on the other side of the support column and the transverse beam in the width direction, the movable block can be rotatably arranged on the corresponding support column or the transverse beam, a screw rod in threaded fit with the movable block is arranged on the movable block, and a pressing block is arranged at one end, close to the stop block, of the screw rod; the outer edge of the test board is arranged between the stop block and the pressing block, and is pressed towards the stop block through the pressing block.

The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the second fixing device includes: the two pressing strips are arranged and are respectively arranged in the mounting frame and close to the support column; the pressing block can be arranged on the pressing strip in a sliding manner along the length direction of the pressing strip, a second pressing screw in threaded fit with the pressing block is arranged on the pressing block, the pressing block passes through the pressing block and then is in pressing contact with the pressing strip, and three pressing blocks are arranged on each pressing strip; the quick clamps are arranged in four and are respectively arranged at the two ends of the cross beam; the abutting block abuts against the test paper, and the quick clamp can be closed to enable the quick clamp to press the pressing strip towards the direction of the test board.

In order to solve the problem that the test board is inconvenient to assemble and disassemble and often delays the experimental time, the utility model has the following beneficial effects:

the multifunctional bullet receiving target can be used for testing the killing power of the bullet after the shooting of the obstacle. In general, when in test, the multifunctional bullet receiving target is arranged at the rear of the obstacle, can receive the shot fragments shot at different angles in a large area, and observe the experimental marks such as the shot positions by shooting after breaking down the obstacle when in receiving test.

When the device is used, the height of the support column can be adjusted by adjusting the expansion and contraction of the expansion and contraction end, so that the distance between the cross beams in the vertical direction can be adjusted; further, the distance between the cooling support columns in the horizontal direction is controlled by adjusting the telescopic length of the cross beam; through the adjustment, the size of the mounting frame is slightly larger than that of the test board, and then the test board is fixed by the first fixing device after being placed in the mounting frame; after the test board is fixed, the test paper is laid on the test board, and the test paper is fixed by the second fixing device.

The size of the mounting frame can be adjusted, so that the mounting of the test board with any specification is very convenient, and the situation that the use requirement of the experimental design is not met can be avoided.

Drawings

FIG. 1 is a schematic view of the front side structure of a multifunctional bullet receiving target of the present utility model;

FIG. 2 is an enlarged view of the portion A of the present utility model;

FIG. 3 is a schematic view of the rear structure of the multi-functional bullet receiving target of the present utility model;

FIG. 4 is an enlarged view of section B of the present utility model;

FIG. 5 is an enlarged view of section C of the present utility model;

FIG. 6 is a schematic view of the structure of the multifunctional bullet receiving target of the present utility model without a test plate and test paper;

figure 7 is an exploded view of the roll placement device of the present utility model;

FIG. 8 is a schematic view of the assembly of the molding and the abutment block of the present utility model;

FIG. 9 is a schematic view of another embodiment of the first fastening device of the present utility model;

FIG. 10 is a partial schematic view of another embodiment of the first fastening device of the present utility model;

fig. 11 is a schematic view of the lifting design of the universal caster of the present utility model.

Reference numerals illustrate:

100-supporting columns, 101-telescopic ends, 102-supporting plates, 103-diagonal braces, 104-universal casters, 105-first U-shaped groove steel sections, 106-first square pipe sections, 107-first sealing plates, 108-first slots, 109-third jacking screws, 110-push-out quick clamps, 111-foot seats, 112-hinging tables and 113-hinging seats;

200-beam, 201-second U-shaped groove steel section, 202-second square pipe section, 203

-a second closing plate, 204-a second slot, 205-a fourth tightening screw;

300-mounting frame;

400-test plate;

500-test paper;

600-paper reels;

700-paper roll placing device, 701-supporting seat, 702-positioning hole and 703

-a connection socket, 704-a positioning shaft, 705-a support disc, 706-a plug shaft, 707-a first tightening screw, 708-a bearing;

800-a first fixing device, 801-a clamping seat, 802-U-shaped grooves, 803-a stop block, 804-a movable block, 805-a screw rod and 806-a pressing block;

900-second fixing device, 901-pressing strip, 902-abutting block, 903-

Second tightening screw, 904-quick clamp.

Detailed Description

The following description of the embodiments of the present utility model will be made more fully hereinafter with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model.

Referring to fig. 1-11, the present utility model discloses a multifunctional bullet receiving target which can be used to test the killing power of a bullet after shooting with an obstacle. In general, the multifunctional bullet receiving target is arranged behind an obstacle in a test, and experimental marks such as a sticking position are observed by sticking after the obstacle is broken down in the test.

In the embodiment of the present disclosure, as shown in fig. 1, 2, 6 and 9, the multifunctional bullet receiving target includes a support column 100, a cross beam 200, a test board 400, and a test paper 500; the support columns 100 are arranged in two and vertically opposite to each other; the upper part of the support column 100 is provided with a telescopic end 101 which can be vertically telescopic to adjust the height; the two cross beams 200 are horizontally arranged between the two support columns 100, wherein two ends of one cross beam 200 are respectively connected with the top of the telescopic end 101, and two ends of the other cross beam 200 are respectively connected with the lower part of the telescopic end 101 of the support column 100; the length of the cross beam 200 can be telescopically adjusted; the two support columns 100 and the two cross beams 200 enclose a mounting frame 300; the test board 400 is disposed in the mounting frame 300 and is fixed by the first fixing device 800; test strip 500 is tiled on one side of test plate 400 and secured by second securing means 900.

When the device is used, the height of the support column 100 can be adjusted by adjusting the expansion and contraction of the expansion and contraction end 101, so that the interval between the cross beams 200 in the vertical direction can be adjusted; further, the horizontal spacing of the cooling support columns 100 is controlled by adjusting the telescopic length of the cross beam 200; through the above adjustment, the size of the mounting frame 300 is slightly larger than that of the test board 400, and then the test board 400 is placed in the mounting frame 300 for use

The first fixing device 800 fixes the test board 400; after the test board 400 is placed, the mounting frame 300 may be folded to be in a state of being engaged with the test board 400 and then fixed; after the test plate is fixed, the test paper 500 is laid on the test plate 400, and the test paper 500 is fixed using the second fixing device 900.

Since the size of the mounting frame 300 can be adjusted, the mounting of the test board 400 of any specification is very convenient, and the situation that the use requirement of the experimental design is not satisfied does not occur.

The paper can more clearly observe the trace of the sticking position, and after the pine board receives the sticking object, the killing force can be comprehensively estimated according to the trace such as the trace of the depth of the sticking object.

In the embodiment of the disclosure, as shown in fig. 1-2, in order to facilitate laying of the test paper 500, the multifunctional bullet receiving target is further provided with a paper roll placement device 700, where at least one paper roll placement device 700 is disposed on one of the support columns 100; the paper roll placement device 700 comprises a support base 701, a connecting base 703 and a support disc 705; the support seat 701 is arranged on the support column 100; the connecting seat 703 is detachably provided on the supporting seat 701; the support plate 705 is rotatably provided on the connection base 703, the support plate 705 is horizontally provided, the rotation axis of the support plate 705 connected to the connection base 703 is vertical, and the support plate 705 is provided with a vertically upward extending insertion shaft 706.

The paper roll 600 wound with the test paper 500 is placed in the paper roll placing device 700, the inserting shaft 706 is inserted into the paper roll 600 to realize setting, and when the paper roll is laid, the test paper 500 can be laid on the test board 400 by pulling one end of the test paper 500 due to the fact that the supporting disc 705 can rotate, and the test paper 500 is fixed by the second fixing device 900 after being laid on the test board 400. At the time of the next test, the used test paper 500 is cut off, and the above operation is repeated.

In the embodiment of the present disclosure, for realizing use, as shown in fig. 5 and 7, a vertical positioning hole 702 is provided on a supporting seat 701, and a connecting seat 703 is provided with a positioning shaft 704 capable of being inserted into the positioning hole 702; the supporting seat 701 is provided with a first jacking screw 707 in threaded fit with the supporting seat, and the first jacking screw 707 is inserted into the positioning hole 702 and then is abutted against the side part of the positioning shaft 704; the support plate 705 is connected with the connecting seat 703 through a bearing 708.

In the embodiment of the present disclosure, as shown in fig. 1 and 2, two paper roll placement devices 700 are provided, which are respectively and correspondingly disposed on two support columns 100, wherein the height of one paper roll placement device 700 is higher than the height of the other paper roll placement device 700.

Since the test board 400 of a typical experimental design has a relatively large area, and the width of the Shan Zhangce test paper 500 cannot be generally spread in the width direction of the test board 400, two paper reels 600 are provided, which are staggered up and down, and the plane of the entire test board 400 is spread by two groups of staggered test papers 500.

In the embodiment of the present disclosure, in fig. 1 and 8, to facilitate fixing of the test paper 500, the second fixing device 900 includes a pressing bar 901, a pressing block 902, and a quick clip 904; the two pressing strips 901 are respectively arranged in the mounting frame 300 and close to the support column 100; the propping blocks 902 are slidably arranged on the pressing strips 901 along the length direction of the pressing strips 901, second propping screws 903 which are in threaded fit with the propping blocks 902 are arranged on the propping blocks 902 and are propped against the pressing strips 901 after penetrating through the propping blocks 902, and three propping blocks 902 are arranged on each pressing strip 901; the quick clamps 904 are arranged in four directions at two ends of the cross beam 200 respectively; the abutment block 902 abuts against the test paper 500, and closing the quick clamp 904 can cause the quick clamp 904 to press the bead 901 toward the test plate 400.

Test paper 500 is held by holding block 902 against test paper 500 against test plate 400 and allowing test paper 500 to conform well to the plane of test plate 400. The pressing block 902 has two functions, the first is that the position is adjustable, so that the upper side and the lower side of two pieces of test paper 500 can be conveniently pressed respectively and the joint of the two pieces of test paper 500 can be conveniently pressed simultaneously; the second is that the pressing block 902 can lift the pressing strip 901, and the pressing strip 901 is far away from the cross beam 200, so that interference pressing is prevented from being loose.

In the embodiment of the disclosure, in order to improve the stability of the multifunctional bullet receiving target, the lower end of the support column 100 is horizontally provided with a support plate 102, the support plate 102 is perpendicular to the height direction of the support column 100 and the arrangement direction of the two support columns 100, and an inclined strut 103 is arranged between the support plate 102 and the support column 100.

Further, universal casters 104 with brakes may be provided at the front and rear ends of the support plate 102, respectively, to facilitate moving the multifunctional bullet receiving target as required.

In the embodiment of the disclosure, in order to ensure that the multifunctional bullet receiving target is provided with the universal castor 104, the risk of unexpected shaking or mistakenly moving in the experimental process is reduced. The universal castor 104 is arranged on the supporting plate 102 in a lifting manner; when the casters 104 are lifted, the support wheels of the casters 104 are above the support plate 102.

I.e. the support wheels of the castor 104 can be raised or lowered as required. When the supporting wheels of the universal casters 104 are raised, the floor is supported by the flat supporting plate 102 completely, so that the placement is stable and reliable. When the movement is needed, the universal castor 104 is put down again, and the universal castor 104 is used for supporting to facilitate the movement.

In some embodiments, as shown in fig. 11, two ends of the supporting plate 102 are respectively provided with an interface platform 112, then the interface platform 112 is hinged with a hinge seat 113, and the universal castor 104 is arranged on the hinge seat 113, meanwhile, a foot seat 111 extending upwards is fixedly arranged on the interface platform 112, and a push-out type quick clamp 110 is hinged between the foot seat 111 and the hinge seat 113. So that the lifting and lowering of the casters 104 can be controlled by pushing and pulling the push-out type quick clamp 110.

As shown in fig. 11, the right side of the figure is a situation where the casters 104 descend to facilitate the support of the support wheels of the casters 104; the left side of the figure is the situation where the support wheels of the casters 104 are raised above the support plate 102.

In the disclosed embodiment, as shown in fig. 6, 9 and 10, two of the real-time modes of the first fixture 800 are disclosed.

Embodiment one:

as shown in fig. 6, the first fixing device 800 includes a plurality of clamping seats 801 provided with U-shaped grooves 802, the clamping seats 801 are respectively arranged at two end directions of the cross beam 200, a top direction of the telescopic end 101, a direction of the support column 100 approaching the cross beam 200, and a position of the support column 100 approaching the telescopic end 101; the clamping seats 801 are all arranged in the mounting frame 300, and the openings of the U-shaped grooves 802 face the inner side of the mounting frame 300; the outer edge of the test plate 400 is inserted into the U-shaped slot 802.

When the test board 400 is fixed, the mounting frame 300 is adjusted to be larger than the test board 400, then the lower side of the test board 400 and one side in the left-right direction are embedded in the U-shaped groove 802, and then the mounting frame 300 is folded to simply and quickly fix the test board 400.

Embodiment two:

as shown in fig. 9 and 10, the first fixing device 800 includes a plurality of stoppers 803 respectively disposed at both end directions of the cross beam 200, in a top direction of the telescopic end 101, in a direction of the support column 100 approaching the cross beam 200, and in a position of the support column 100 approaching the telescopic end 101; the block 803 is respectively arranged on one side of the support column 100 and the cross beam 200 in the width direction, a movable block 804 opposite to the block 803 is arranged on the other side of the support column 100 and the cross beam 200 in the width direction, the movable block 804 can be rotatably arranged on the corresponding support column 100 or cross beam 200, a screw 805 in threaded fit with the movable block 804 is arranged on the movable block 804, and a pressing block 806 is arranged at one end of the screw 805 close to the block 803 in the direction; the outer edge of the test board 400 is disposed between the block 803 and the pressing block 806, and is pressed toward the block 803 by the pressing block 806.

When fixing the test board 400, the test board 400 is placed in the mounting frame 300 so that the test board 400 is abutted against the stopper 803, and then the movable block 804 is rotated so that the pressing block 806 is opposed to the edge of the test board 400, and the screw 805 is rotated so that the pressing block 806 presses the test board 400.

The movable block 804 can rotate to enable the pressing block 806 and other parts to leave the mounting frame 300, so that the test board 400 is conveniently embedded into the mounting frame 300 or detached from the mounting frame 300 without interference, and the operation is convenient.

It is noted that, as can be seen from fig. 1 and 9, three fixing points for fixing the test board 400 are provided on the support column 100, and the fixing point located at the middle position has a long fixing length. This is because the width of the test board 400 is generally wider, but a single board of pine is generally not able to meet the width (height) requirement of the test board 400 in the experiment, for example, the test paper 500 generally requires two boards of pine to be spliced up and down to form one of the three boards of the test board 400, so the fixing point located in the middle of the support column 100 can just fix the spliced position of the upper and lower boards of pine.

For example, the design requirements of test board 400 are 244CM long and 240CM wide (high), but a single board is typically only 120CM wide, so two boards are required to be spliced one above the other. Corresponding to one test board 400, six pine boards are required.

As shown in fig. 1-4, to meet the requirement of telescopic adjustment of the support column 100 and the cross beam 200, the support column 100 includes a first U-shaped steel section 105 and a first square tube section 106, a first sealing plate 107 is disposed at the opening side of the first U-shaped steel section 105 to form a first slot 108, one end of the first square tube section 106 is inserted into the first slot 108 to form a telescopic end 101, and a third tightening screw 109 in threaded fit with the first U-shaped steel section 105 is disposed at one side of the first square tube section 106 to abut against the first square tube section 106; the cross beam 200 comprises a second U-shaped groove steel section 201 and a second square pipe section 202, a second sealing plate 203 is arranged on the opening side of the second U-shaped groove steel section 201 to form a second slot 204, one end of the second square pipe section 202 is inserted into the second slot 204, and a fourth jacking screw 205 in threaded fit with the second U-shaped groove steel section 201 is arranged on one side of the second U-shaped groove steel section and is abutted against the second square pipe section 202.

The third tightening screw 109 is abutted against the first pipe section 106, so that the height of the support column 100 can be fixed; the fourth tightening screw 205 abuts against the second square pipe segment 202, whereby the length of the cross member 200 can be fixed. If adjustment is required, the third and fourth tightening screws 109, 205 may be simply loosened.

In some embodiments, the telescoping designs of the support column 100 and the cross beam 200 are not limited to the mating of channel steel sections and square tube sections. C-shaped steel can be purchased, and one end of the C-shaped steel can be inserted into a C-shaped groove of the other end of the C-shaped steel in a fit manner to realize relative sliding telescopic adjustment. And the relative sliding of the two sections of C-shaped steel can be limited by correspondingly arranging a jacking screw.

The present utility model is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present utility model and the inventive concept thereof, can be replaced or changed within the scope of the present utility model.

Claims (10)

1. The multi-functional bullet target that connects, its characterized in that includes:

the support columns (100) are arranged in two, and the support columns (100) are vertically and oppositely arranged; the upper part of the support column (100) is provided with a telescopic end (101) capable of adjusting the height in an up-and-down telescopic manner;

the two cross beams (200) are horizontally arranged between the two support columns (100), two ends of one cross beam (200) are respectively connected with the top of the telescopic end (101), and two ends of the other cross beam (200) are respectively connected with the lower part of the telescopic end (101) of the support column (100); the length of the cross beam (200) can be adjusted in a telescopic way;

the two support columns (100) and the two cross beams (200) enclose a mounting frame (300);

a test board (400), the test board (400) being disposed within the mounting frame (300) and being secured by a first securing means (800);

and the test paper (500) is flatly paved on one surface of the test board (400) and is fixed by a second fixing device (900).

2. The multi-functional bullet receiving target according to claim 1, further comprising a roll placement device (700), said roll placement device (700) being provided with at least one, being provided on one of said support columns (100); the paper roll placement device (700) includes:

a support base (701), the support base (701) being disposed on the support column (100);

a connection base (703), wherein the connection base (703) is detachably arranged on the support base (701);

the support plate (705), support plate (705) rotationally sets up on connecting seat (703), support plate (705) level sets up, support plate (705) with the rotation axis that connecting seat (703) is connected is vertical, be provided with on support plate (705) perpendicular upwards extending insert axle (706).

3. The multifunctional bullet receiving target according to claim 2, wherein the supporting seat (701) is provided with a vertical positioning hole (702), and the connecting seat (703) is provided with a positioning shaft (704) capable of being inserted into the positioning hole (702); a first jacking screw (707) which is in threaded fit with the supporting seat (701) is arranged on the supporting seat and is abutted against the side part of the positioning shaft (704) after penetrating into the positioning hole (702);

the supporting disc (705) is connected with the connecting seat (703) through a bearing (708).

4. The multifunctional bullet receiving target according to claim 2, wherein two paper roll placement devices (700) are respectively and correspondingly arranged on the two support columns (100), and the position height of one paper roll placement device (700) is higher than the position height of the other paper roll placement device (700).

5. The multifunctional bullet receiving target according to claim 1, wherein a support plate (102) is horizontally arranged at the lower end of the support column (100), the support plate (102) is perpendicular to the height direction of the support column (100) and the arrangement direction of the two support columns (100), and an inclined strut (103) is arranged between the support plate (102) and the support columns (100).

6. The multifunctional bullet receiving target according to claim 5, wherein the front and rear ends of the supporting plate (102) are respectively provided with a universal castor (104) with a brake.

7. The multi-functional bullet receiving target according to claim 6, wherein the universal castor (104) is liftably disposed on the support plate (102); when the universal castor (104) is lifted, the supporting wheel of the universal castor (104) is positioned above the supporting plate (102).

8. The multifunctional bullet receiving target according to claim 1, wherein the first fixing device (800) comprises a plurality of clamping seats (801) provided with U-shaped grooves (802), and the clamping seats (801) are respectively arranged at two end directions of the cross beam (200), a top direction of the telescopic end (101), a direction of the support column (100) approaching the cross beam (200) and a position of the support column (100) approaching the telescopic end (101);

the clamping seats (801) are all arranged in the mounting frame (300), and the openings of the U-shaped grooves (802) face to the inner side of the mounting frame (300);

the outer edge of the test board (400) is inserted into the U-shaped groove (802).

9. The multi-functional bullet receiving target according to claim 1, wherein the first fixing means (800) includes a plurality of stoppers (803), the stoppers (803) being respectively disposed in both end directions of the cross beam (200), in a top direction of the telescopic end (101), in a direction in which the support column (100) approaches the cross beam (200), and in a position in which the support column (100) approaches the telescopic end (101);

the stop blocks (803) are respectively arranged on one side of the support column (100) and one side of the cross beam (200) in the width direction, movable blocks (804) which are opposite to the stop blocks (803) one by one are arranged on the other side of the support column (100) and the cross beam (200) in the width direction, the movable blocks (804) can be rotatably arranged on the corresponding support column (100) or the cross beam (200), screw rods (805) in threaded fit with the movable blocks (804) are arranged on the movable blocks (804), and pressing blocks (806) are arranged at one ends, close to the stop blocks (803), of the screw rods (805);

the outer edge of the test board (400) is arranged between the stop block (803) and the pressing block (806), and is pressed towards the stop block (803) through the pressing block (806).

10. The multi-functional bullet receiving target according to claim 1, wherein the second fixture (900) comprises:

the two pressing strips (901) are arranged, and are respectively arranged in the mounting frame (300) and close to the support column (100);

the pressing blocks (902) are slidably arranged on the pressing strips (901) along the length direction of the pressing strips (901), second pressing screws (903) which are in threaded fit with the pressing blocks (902) are arranged on the pressing blocks (902), the pressing blocks (902) penetrate through the pressing blocks (902) and then are in butt joint with the pressing strips (901), and three pressing blocks (902) are arranged on each pressing strip (901);

the quick clamps (904) are arranged in four, and are respectively arranged at the two ends of the cross beam (200);

the abutting block (902) abuts against the test paper (500), and the quick clamp (904) is closed, so that the quick clamp (904) can press the pressing strip (901) towards the test board (400).