CN109459326B

CN109459326B - Gun barrel strength testing device

Info

Publication number: CN109459326B
Application number: CN201910003031.5A
Authority: CN
Inventors: 马玉石; 郑炳生; 王通; 黄国林; 宋有龙
Original assignee: Fujian Ordnance Equipment Co ltd
Current assignee: Fujian Ordnance Equipment Co ltd
Priority date: 2019-01-03
Filing date: 2019-01-03
Publication date: 2024-01-09
Anticipated expiration: 2039-01-03
Also published as: CN109459326A

Abstract

The utility model provides a barrel intensity testing arrangement which the main points lie in: the device consists of a box body component, a firing component, a base component, a locking component and a driving rod component. The top end of the box body component is provided with a firing component interface, the lower end of the box body component is provided with a base component interface, and the left side of the box body component is provided with a driving rod component interface; the firing assembly main body is a base matched with the box body, a firing pin seat and a firing pin are arranged in the firing assembly main body, and a locking nut, a firing pin cover, a cushion block and a gun barrel buckle are arranged outside the firing assembly main body; the base component is formed by connecting a lower base with a supporting seat, and a gun tube seat is arranged on the base component; the locking assembly is supported by the eccentric shaft seat, a driving wheel is arranged on the locking assembly, a pair of eccentric shafts are controlled to complete rotation, and the locking barrel of the base assembly is lifted upwards; the driving rod assembly is connected with the driving handle in a matched manner, and is integrally inserted into the box assembly to drive the locking assembly to realize locking action. The invention has the advantages of exquisite structure and convenient operation, ensures the strength test effect of the gun barrel, can improve the safety and the working efficiency of the test, and reduces the test cost.

Description

Gun barrel strength testing device

Technical Field

The invention relates to the fields of scientific research, production, test and the like of army and civil guns.

Background

In the research, production and test processes of firearms, corresponding safety tests are indispensable links to the firearms, wherein the relatively important items are that the strength of the gun barrels is checked and verified by using a high-pressure bullet for testing when gun forming test shooting is used, so that the use safety after delivery of the gun is ensured to meet the requirements.

Compared with a common bullet, the high-pressure bullet for testing has more in-shell medicine quantity and higher in the moment of firing, and the gun shoots by using the bullet, so that the risk problems of shell explosion, rifling, even main body explosion of a case and the like are easy to occur, and similar test items always threaten the personal safety of a tester.

For the selection of the testing time, after the gun barrel is installed to the case, the strength test is carried out in the assembled whole gun state, and once the accident occurs, the whole gun is scrapped at the same time in most cases, so that great loss is caused; and the shooting test needs at least 50-100 meters of closed safety target path, and the closed safety target path needs the construction, maintenance, management and the like of supporting facilities and equipment, so that the occupied area for the test is larger and the test cost is higher.

Disclosure of Invention

The invention aims to provide the gun barrel strength testing device which has the advantages of simple structure, reliable use and convenient operation, can ensure the gun barrel strength testing effect, can improve the safety and the testing efficiency of the testing process, and can reduce the occupied area and the testing cost.

The technical scheme adopted by the invention is a gun barrel strength testing device, which is characterized in that: the box body assembly consists of a box body and a door plate, wherein the box body is a cube with five sides, the door plate is hinged to the open side of the box body to jointly form a closed cube, and a firing mechanism mounting hole is formed in the top of the box body and used for mounting the firing assembly; a driving rod seat mounting hole is formed in the lower left side, and a driving rod seat is arranged in the driving rod seat for mounting a driving rod assembly; the bottom of the box body is fixedly provided with a guide cylinder for positioning the locking assembly, an inner hole of the guide cylinder is a guide hole for positioning the base assembly, the firing assembly is arranged in the box body assembly upwards along the vertical center and is arranged in a firing mechanism mounting hole at the top of the box body until the firing mechanism mounting hole is tightly attached to the inner surface of the upper wall of the box body and is matched with a round nut II to finish fastening; the locking assembly falls down to the bottom of the box body along the vertical center from the inside of the box body assembly until the driving wheel of the locking assembly is opposite to the driving rod seat on the left side; the base assembly also falls onto the locking assembly from the inside of the box assembly along the vertical center until the lower base falls into the guide hole at the bottom of the box, and the supporting seat of the base assembly is tightly attached to the eccentric shaft on the locking assembly; the driving rod assembly is inserted into the driving rod hole rightward along the axis of the driving rod seat on the left wall from the left side outside the box body assembly until the driving rod of the driving rod assembly is matched with the driving wheel on the locking assembly in place, and the movable bolt falls into the movable bolt hole on the driving rod seat downward.

According to the invention, the firing assembly, the base assembly, the locking assembly and the driving rod assembly are arranged in the box body, the gun barrel is inserted into the box body from top to bottom, two ends of the gun barrel are fixed through the firing assembly and the base assembly, when the device is used, only a pit hole with a certain depth is dug under the firing assembly and used for accommodating the ejected warhead, and corresponding anchor screws are poured, so that the fastening and the installation of the device can be completed; according to the invention, the strength test in the whole gun state is changed into the test of a single gun barrel, and once the test fails, the gun shell or gun barrel is fried, the whole gun is not scrapped, and the loss is small; the gun barrel is firmly sealed in a thick steel plate welded box body in the locking and firing stages, so that the safety of the test is greatly improved, and the personal safety of the tester is greatly ensured.

The detailed and specific design of several components of the invention is as follows:

the box body assembly consists of a box body, a door plate, trunnions, a driving rod seat, a round nut I, a locking shaft, a lock catch, a locking handle, a nut I and a cotter pin, wherein the door plate is hinged to one open surface of the box body through a pair of trunnions; the driving rod seat is arranged in a driving rod seat mounting hole on the left side of the box body through matching with the round nut I; the lock catch shaft penetrates through a lock catch shaft hole in the middle of the door plate, the lock catch and the lock catch handle are respectively sleeved at the inner end and the outer end, and the lock catch shaft is fastened through the nut I and the cotter pin.

The firing assembly consists of a base, a firing pin seat, a locking nut, a firing pin cover, a cylindrical compression spring, a round nut II, a cushion block, a gun barrel buckle, a bolt I, a directional screw I, an axial screw, a nut II and a cylindrical stretching spring, wherein the firing pin seat is arranged in place upwards from the center below the base, the directional screw I is arranged in a directional screw hole I on the base from the right front and falls into a directional groove I of the firing pin seat at the same time, and is used for positioning between the firing pin seat and the base, and the fixation of the firing pin seat is completed by the locking nut; the cylindrical compression spring and the firing pin are sequentially arranged in place downwards from the center above the firing pin seat, and the upper part is tightly sealed by matching with the firing pin cover; the cushion block is tightly attached to the base from the lower direction and is tightly fixed by matching with a pair of bolts I and is arranged below the base; the left barrel buckle and the right barrel buckle are upwards fixed to the cushion block through a pair of axial screws; four screws are respectively arranged in an adjusting screw hole on the cushion block and a tension spring screw hole on the gun barrel buckle, and are sleeved with four nuts II to complete tightening; the left end and the right end of the cylindrical extension spring are respectively sleeved on two screws on the gun barrel buckle, and are respectively sleeved with a nut II to complete the tightening.

The base assembly consists of a lower base, a gun tube seat, a directional screw II, a round nut III and a supporting seat, wherein the lower base is screwed into a connecting thread II downwards from the center above the supporting seat, and the round nut III is matched for completing tightening; the directional screw II is arranged in a directional screw hole II on the lower base from the right front and is screwed tightly and fixed; the gun tube seat is downwards installed in place from the center above the lower base, and the orientation screw II simultaneously falls into the orientation groove II.

The locking assembly consists of an eccentric shaft seat, an eccentric shaft, a driving wheel, an eccentric shaft baffle, a bolt II and a positioning pin, wherein the driving wheel is outwards arranged in a driving wheel shaft hole from the inner side of a left side plate of the eccentric shaft seat, and the positioning pin is downwards arranged in a positioning pin hole from the upper side of the left side plate of the eccentric shaft seat, so that the driving wheel is fixed; the two eccentric shafts penetrate into the two right eccentric shaft holes of the right side plate of the eccentric shaft seat from right to left respectively and fall into the two left eccentric shaft holes of the left side plate of the eccentric shaft seat at the same time until the driving teeth and the driven teeth are accurately meshed; the eccentric shaft baffle is embedded into the baffle groove leftwards by the right side plate of the eccentric shaft seat, and is screwed into a bolt II to complete the fastening.

The upper surface of the eccentric shaft is provided with an eccentric surface, the eccentric surface gradually transits from a plane to a cylindrical surface, and the eccentric surface is contacted with the base component.

The left end of the driving wheel is a wheel shaft which penetrates into the shaft hole of the driving wheel to rotate for positioning; the end face is provided with a driving groove for being matched with the inserted driving convex bamboo shoots to transmit the torque output by the driving rod assembly; a circle of positioning grooves are formed in the shaft and are used for limiting the axial movement of the positioning rod in a matching manner; a circle of driving teeth are machined on the circumference of the right side and meshed with driven teeth on the eccentric shaft; a plurality of reducing holes are uniformly distributed on the right end face.

The driving rod assembly consists of a driving rod, a driving handle, a bolt III and a movable bolt, wherein the left end of the driving handle is inserted into a handle matching hole on the driving rod until a fastening hole II on the driving handle is aligned with a bolt hole on the driving rod; the bolt III is screwed in from the bolt hole and is tightly fixed, and the connection between the driving handle and the driving rod is completed; after the driving rod is inserted into the driving rod seat on the box body, the movable bolt is downwards arranged in the movable bolt hole, so that the limit of the driving rod is completed.

The supporting seat is composed of a supporting cylinder and a supporting plate at the bottom of the supporting cylinder, a pair of rib plates are symmetrically welded between the supporting cylinder and the supporting plate, and a large reducing hole and a small reducing hole are respectively processed on the supporting cylinder and the rib plates.

The bottom plate is welded on the outer side of the bottom of the box body, and a plurality of anchor screw holes are machined on the periphery of the bottom plate.

The beneficial effects of the invention are as follows: the gun barrel strength testing device has the advantages of exquisite structure, simplicity, reliability, convenient operation and controllable cost; the device changes the intensity test in the whole gun state into the test of a single gun barrel, and once the test fails, the shells or the guns of the gun and the gun barrel are fried, the whole gun is not scrapped, and the loss is small; the gun barrel is firmly sealed in a box body welded by a thick steel plate in the locking and firing stages, so that the safety of the test is greatly improved, and the personal safety of a tester is greatly ensured; the device changes the conventional horizontal shooting test into a vertical downward one, the whole occupied area is small, the working amount of the matched earthwork is small, and the fastening installation of the device can be completed only by digging a pit with a certain depth under the device to contain the shot warhead and pouring corresponding anchor screws; the operation is simple and convenient, a series of actions of opening and closing the box body, locking the gun barrel, completing firing, loading and unloading the gun barrel and the like can be completed by the same person, complex training is not needed, the arrangement of the operation parts is reasonable, the coordination work of the left hand and the right hand of the person is convenient, and the efficiency can be obviously improved when the batch test is carried out; when the gun barrels with different specifications such as caliber, outer diameter and length are required to be tested, only the gun tube seat, the firing pin seat and the firing pin matched with the gun tube seat are required to be replaced, and the threaded connection length of the lower base and the supporting seat is properly adjusted according to the length of the gun barrel, so that the device can be reliably locked in a locking stroke, the application range is wide, the adjustment is simple and flexible, and the requirements of the fields such as conventional gun scientific research, production and test on the strength test of the gun barrel are basically met.

Drawings

FIG. 1 is a schematic view of a barrel and bullet structure

FIG. 2 is a diagram showing the use of the present invention

FIG. 3 is an enlarged view of FIG. 2 at A

FIG. 4 is a schematic diagram of the structure of the present invention

FIG. 5 is a schematic view of the structure of the case assembly of the present invention

FIG. 6 is a schematic view of the structure of the case of the present invention

FIG. 7 is a schematic view of a door panel according to the present invention

FIG. 8 is a schematic view of the trunnion of the present invention

FIG. 9 is a schematic view of a driving rod seat according to the present invention

FIG. 10 is a schematic view of a latch shaft according to the present invention

FIG. 11 is a schematic view of a latch according to the present invention

FIG. 12 is a schematic view of the structure of the latch handle of the present invention

FIG. 13 is a schematic view of a firing assembly according to the present invention

FIG. 14 is a schematic view of the structure of the base of the present invention

Fig. 15 is a bottom view of fig. 14

FIG. 16 is a schematic view of the structure of the striking seat according to the present invention

Fig. 17 is a bottom view of fig. 16

FIG. 18 is a schematic view of a lock nut according to the present invention

FIG. 19 is a schematic view of the structure of the striking pin according to the present invention

FIG. 20 is a schematic view of the structure of the lid of the striking pin according to the present invention

FIG. 21 is a schematic view of a cushion block according to the present invention

FIG. 22 is a schematic view of a gun barrel buckle according to the present invention

FIG. 23 is a schematic view of a base assembly of the present invention

FIG. 24 is a schematic view of the structure of the lower base of the present invention

FIG. 25 is a schematic view of a barrel holder according to the present invention

Fig. 26 is a bottom view of fig. 25

FIG. 27 is a schematic view of a support base according to the present invention

FIG. 28 is a schematic view of a latch assembly according to the present invention

FIG. 29 is a schematic view of a eccentric shaft seat according to the present invention

FIG. 30 is a schematic view of an eccentric shaft in the present invention

FIG. 31 is a cross-sectional view of the eccentric shaft B-B of FIG. 30

FIG. 32 is a schematic view of a driving wheel according to the present invention

FIG. 33 is a schematic view of the structure of the eccentric shaft baffle in the present invention

FIG. 34 is a schematic view of a positioning pin according to the present invention

FIG. 35 is a schematic view of the structure of the driving rod assembly of the present invention

FIG. 36 is a schematic view of the structure of the driving rod of the present invention

FIG. 37 is a schematic view of the structure of the driving handle of the present invention

FIG. 38 is a schematic view of the structure of the movable plug in the present invention

Wherein: 1. box body assembly 11a, box body 11a, firing mechanism mounting hole 11b, driving rod seat mounting hole 11c, door plate locking surface 11d, ear shaft seat I11 e, ear shaft hole I11 f, guide cylinder 11h, foot screw hole 11i bottom plate 11j, protruding edge 12 door plate 12a, ear shaft seat II 12b, ear shaft hole II 12c, lock catch shaft hole 13, ear shaft 13a, ear shaft cap 14, driving rod seat 14a, anti-rotation plane 14b and box body matching surface I14 c locating surface I14 d fastening screw thread I14 e drive rod hole 14f movable bolt hole 15 round nut I16 lock shaft 16a door panel mating surface 16b door panel locating surface 16c fastening screw thread II 16d lock handle mating surface 16e lock handle mating surface 16f pin hole 17 lock 17a lock shaft mating surface 17b limit surface 18 lock handle 18a lock shaft mating surface 18b handle I19 nut I110 cotter pin

2. The base 21a of the firing assembly 21, the needle holder hole 21b, the fastening thread III 21c, the box mating surface II 21d, the box locating surface II 21e, the directional screw hole I21 f, the barrel guide surface I21 g, the needle holder locating surface II 21h, the needle holder 22a, the needle holder 22b, the needle spring hole 22c, the needle limit surface I22 d, the base mating surface 22e, the base locating surface I22 f, the fastening thread IV 22g, the directional groove I22 h, the barrel locating surface I22 i, the bullet bottom socket 22j, the needle holder hole 23, the lock nut 23a, the fastening thread V23 b, the wrench mating surface I24, the needle holder 24a, the needle tip 24b striking pin body 24c limit boss 24d striking pin cover 25a striking pin hole 25b striking pin limit surface II 25c fastening thread 25d spanner mating surface II 26 cylindrical compression spring 27 round nut II 28 cushion 28a base positioning groove 28c support bar 28d buckle screw hole 28e adjusting seat 28f adjusting screw hole 29 barrel buckle 29a shaft hole 29b limit table 29c tension spring screw hole 29d holding surface 29e barrel guide surface II 210 bolt I211 orientation screw 213 screw 214 nut II extension spring II

3. Base assembly 31 lower base 31a barrel seat hole 31b barrel seat locating surface 31c drop hole I31 d barrel guide surface III 31e directional screw hole II 31f connection thread I31 g guide hole mating surface 32 gun barrel seat 32a barrel locating groove 32b barrel locating surface II 32c barrel guide surface IV 32d drop hole II 32e directional groove II 32f lower base mating surface 32g lower base locating surface 33 directional screw II 34 round nut III 35 support seat 35b connection thread II 35c support barrel 35d rib plate 35e support plate [ A1] 35f guide barrel yielding hole I

4. Locking assembly 41 eccentric shaft seat 41a left eccentric shaft hole 41b right eccentric shaft hole 41c guide cylinder yielding hole II 41d driving wheel shaft hole 41e positioning pin hole 41f baffle plate groove 41g baffle plate bolt hole 41h eccentric shaft seat bottom plate 41i eccentric shaft seat left side plate 41j eccentric shaft seat right side plate 42 eccentric shaft seat left matching surface 42b driving wheel 43a axle 43b driving groove 43c positioning groove 43d driving tooth 44 eccentric shaft baffle 44a fastening hole I45 bolt II 46 positioning pin 46a positioning rod I46 b pull head 46c anti-slip groove

5. Driving rod assembly 51 driving rod 51a driving convex bamboo shoot 51b driving rod seat matching surface 51c anti-drop groove 51d handle matching surface 51e bolt hole 52 driving handle 52a driving rod matching surface 52b fastening hole II 52c handle body II 53 bolt III 54 movable bolt 54a positioning rod II 54b lifting ring

6. Barrel 6a barrel port mating face 6b barrel tail mating face 6c chamber 7 cartridge 7a nose 7b shell 7c primer 8 relief hole.

Detailed Description

The following examples will be presented to enable those skilled in the art to better understand the present invention and are not intended to limit the present invention in any way.

Referring to fig. 1, which shows a schematic view of a gun barrel and a bullet structure, the invention is shown in fig. 2-38, and is a strength testing device for testing the gun barrel shown in fig. 1, which comprises a box body component 1, a firing component 2, a base component 3, a locking component 4 and a driving rod component 5. The box body assembly 1 consists of a box body 11 and a door plate 12, wherein the box body 11 is a cube with five faces, the door plate 12 is hinged to the open face of the box body 11 to form a closed cube together, and a firing mechanism mounting hole 11a is formed in the top of the box body 11 and used for mounting the firing assembly 2; a driving rod seat mounting hole 11b is processed at the lower left side, and a driving rod seat 14 is arranged in the driving rod seat mounting hole for mounting a driving rod assembly; the bottom of the box body is fixed with a guide cylinder 11f for positioning the locking assembly 4, and an inner hole of the guide cylinder is a guide hole 11g for positioning the base assembly. The firing assembly 2 is arranged in a firing mechanism mounting hole 11a at the top of the box body 11 from the inside of the box body assembly 1 along the vertical center upwards until the firing mechanism mounting hole clings to the inner surface of the upper wall of the box body 11 and is matched with a round nut II 27 to finish tightening; the locking assembly 4 falls from the inside of the box body assembly 1 to the bottom of the box body 11 along the vertical center until the driving wheel 43 of the locking assembly is opposite to the driving rod seat 14 on the left side; the base component 3 also falls onto the locking component 4 from the inside of the box component 1 along the vertical center until the lower base 31 falls into the guide hole 11g at the bottom of the box 11, and the supporting seat 35 is tightly attached to the eccentric shaft 42 on the locking component 4; the drive rod assembly 5 is inserted from the left side of the exterior of the housing assembly 1, along the axis of the drive rod seat 14 on the left wall, to the right into the drive rod hole 14e until the movable latch 54 drops downwardly into the movable latch hole 14f on the drive rod seat 14 after its drive rod 51 is mated in place with the drive wheel 43 on the latch assembly 4.

The box body assembly 1 is matched with a box body matching surface II 21c and a box body positioning surface II 21d on a base 21 in the box body assembly 2 through a firing mechanism mounting hole 11a at the top of the box body 11, and is tightly assembled by a round nut II 27, so that the firing assembly 2 is fixed on the box body; a driving rod seat mounting hole 11b is processed below the left side of the box body, and the driving rod assembly 5 is positioned and fastened by matching a driving rod hole 14e and a movable bolt hole 14f on the driving rod seat 14 on the left side with a driving rod seat matching surface 51b and a movable bolt 54 on the driving rod assembly 5; the bottom is fixed with a guide cylinder 11f, the locking assembly 4 is sleeved outside the guide cylinder, and the locking assembly is completed by matching the eccentric shaft seat 41 at the lower part and the guide cylinder abdicating hole II 41c at the middle part with the inner wall of the box 11 and the guide cylinder 11 f. The eccentric shaft seat 41 is composed of an eccentric shaft seat bottom plate 41h, an eccentric shaft seat left side plate 41i and an eccentric shaft seat right side plate 41j which are fixed on two sides of the upper surface of the eccentric shaft seat bottom plate 41 h; the eccentric shaft seat left side plate 41i is provided with a driving wheel shaft hole 41d and two left eccentric shaft holes 41a; the right side plate 41j of the eccentric shaft seat is provided with two right eccentric shaft holes 41b corresponding to the left eccentric shaft hole 41a; the driving wheel 43 is installed in the driving wheel shaft hole 41d, two ends of the two eccentric shafts 42 are respectively fixed in the left and right eccentric shaft holes and are arranged at two sides below the driving wheel 43, and the driving rod 51 of the driving rod assembly 5 is connected with the driving wheel 43; the eccentric surface 42c on the eccentric shaft 42 is matched with the supporting plate 35e on the base component 3 to realize the push-up locking of the base component 3 and the gun barrel 6; the driving groove 43b on the left side of the driving wheel 43 is matched with the driving convex bamboo shoot 51a on the driving rod assembly 5, so that the driving rod assembly 5 drives the eccentric shaft 42 to rotate, and the locking action is completed. The base component 3 is assembled above the locking component 4, and the lower base 31 vertically moves in the guide hole 11g through the matching of the guide hole matching surface 31g below the lower base 31 and the guide hole 11g in the center of the guide cylinder 11f at the bottom of the box 11, so that the positioning and guiding of the base component 3 are realized, the center of the base component is always aligned with the center of the firing component 2 at the top, the posture of the gun barrel 6 is kept vertical in the locking process, and the bullet 7 can smoothly slide into the bullet bottom nest 22i of the firing pin seat 22 in the locking process; the top surface of the barrel holder 32 on the base assembly 3 is provided with a barrel positioning groove 32a and a barrel positioning surface II 32b which are matched with the front end of the barrel 6, and the firing assembly 2 is provided with a barrel buckle 29 which clamps the rear part of the barrel. The barrel locating surface I22 h on the upper firing pin seat 22 of the device is aligned with the barrel locating surface II 32b on the lower barrel seat 32, so that the barrel 6 can be ensured to be vertical after being installed and locked. And during the process of putting the gun tube 6 into the device, a person cannot ensure that the gun tube 6 is always held in an upright state. When the barrel 6 in a non-vertical state touches the upper and lower pairs of barrel guide surfaces, the barrel 6 is forcedly guided to the center position by the guide surfaces, and finally forms a vertical state and accurately falls into the upper and lower positioning surfaces.

Details of the various components:

as shown in fig. 5 to 12, the case assembly 1 is composed of a case 11, a door panel 12, a trunnion 13, a driving rod seat 14, a round nut i 15, a lock shaft 16, a lock 17, a lock handle 18, a nut i 19, and a cotter pin 110. The door plate 12 is hinged on the open surface of the box body 11 through a pair of vertically distributed trunnions 13; the driving rod seat 14 is arranged in a driving rod seat mounting hole 11b on the left side of the box body 11 by being matched with the round nut I15; the latch shaft 16 passes through a latch shaft hole 12c in the middle of the door panel 12, and the inner end and the outer end are respectively sleeved with a latch 17 and a latch handle 18, and are respectively fastened by a nut I19 and a cotter pin 110.

The box body 11 is a cube with five faces, is formed by welding steel plates with the thickness of 30mm when testing barrels with the caliber of 7.62 multiplied by 39mm, is welded with a convex edge 11j at the left edge of an open box opening, is provided with a door plate locking face 11c at the inner side, provides a abdication for the rotation of the lock catch 17, and is matched with the lock catch 17 to lock the door plate 12; the top of the box body 11 is provided with a firing mechanism mounting hole 11a for mounting the firing assembly 2; the left side surface of the box body is provided with a driving rod seat mounting hole 11b for mounting a driving rod seat 14; an upper trunnion seat I11 d and a lower trunnion seat I11 d are welded on the right side, and each trunnion seat I11 e is provided with a trunnion hole for penetrating into the trunnion 13; a guide cylinder 11f is welded on the inner side of the bottom, a guide hole 11g is processed in the center of the guide cylinder, and the guide hole is a through hole and is used for positioning and guiding the movement of the base component 3; the bottom outside welding has bottom plate 11i, and the bottom plate processing has a plurality of lower margin screw holes 11h all around for with the lower margin screw cooperation on ground when the installation of device falls to the ground, accomplish the fastening of device. (the left and right sides in this paragraph are based on the orientation of FIG. 5)

As shown in fig. 7, the right side of the door panel 12 is welded with an upper and a lower trunnion seats ii 12a, on which a trunnion hole ii 12b is respectively provided for penetrating into the trunnion 13, a groove capable of accommodating the trunnion seat i of the box body is formed in the middle of the trunnion seat ii, the trunnion seat i is embedded in the groove of the trunnion seat ii, the trunnion hole i is coaxial with the trunnion hole ii, and the trunnion sequentially penetrates through the trunnion hole ii, the trunnion hole i and the trunnion hole ii, so as to realize the hinge joint of the door panel and the box body 11; the left middle part is processed with a latch shaft hole 12c for penetrating the latch shaft 16 and positioning it.

The trunnion 13 is provided with a lug 13a which is larger than the shaft lever and is used for realizing axial positioning after penetrating into the trunnion hole.

The driving rod seat 14 is of a step shaft structure, and a symmetrical anti-rotation plane 14a is processed at the right end and used for fixing the direction during installation; the middle part is provided with a box body matching surface I14 b (cylindrical surface) and a box body positioning surface I14 c (end surface) for matching and positioning with the driving rod seat mounting hole 11 b; the rear end of the matching surface I14 b of the box body is provided with a fastening thread I14 d for being matched with a round nut I15 to fasten the round nut I; a driving rod hole 14e is formed in the center and used for penetrating the driving rod assembly 5; the left end is provided with a movable bolt hole 14f which is not in the axle center and is arranged in an offset way, after the driving rod assembly 5 is assembled in place, the movable bolt 54 is inserted, and the movable bolt simultaneously falls into the anti-falling groove 51c of the driving rod upper 51 to prevent the driving rod assembly 5 from falling out.

The lock catch shaft 16 is a step shaft, and a door plate matching surface 16a (cylindrical surface) and a door plate positioning surface 16b (end surface) are machined in the middle and used for matching and positioning with the lock catch shaft hole 12 c; fastening threads II 16c are formed at two ends (for convenience in machining and assembly, the fastening threads II at two ends are the same, the length is determined according to the requirements of a lock catch and a lock catch handle matched with the fastening threads II, and the fastening threads II are respectively used for matching with a nut I19 to fasten the lock catch 17 and the lock catch handle 18; the surfaces of the fastening threads II 16c at the two ends are also respectively provided with a latch matching surface 16d and a latch handle matching surface 16e which are symmetrical in parallel and used for transmitting the rotation moment of the latch handle 18 to the latch 17 to realize unlocking and locking; pin holes 16f are formed in the threaded surfaces at the ends of the two sides, respectively, for inserting cotter pins 110 to prevent unexpected loosening and sliding of nut I19.

One end of the lock catch 17 is provided with a lock catch shaft matching surface 17a which is a plane and is used for matching with the lock catch shaft 16 to realize linkage; the other end is provided with a limiting surface 17b for abutting against the inner surface of the left side of the box body 11 after locking in place, preventing the handle from continuing to rotate, and the handle rotates upwards to unlock, and at the moment, the gravity center of the handle is positioned below the horizontal plane and is in an automatic locking state.

One end of the latch handle 18 is provided with a latch shaft matching surface 18a for matching with the latch handle matching surface 16e to realize linkage; the other end is provided with a handle I18 b for an operator to hold to complete the rotation to open and close the door plate 12.

The round nut i 15, the nut i 19 and the cotter 110 are all standard components, and the specification can be selected according to actual needs, and will not be described in detail herein.

As shown in fig. 13-22, firing assembly 2 is comprised of a base 21, a firing pin seat 22, a lock nut 23, a firing pin 24, a firing pin cover 25, a cylindrical compression spring 26, a round nut ii 27, a spacer 28, a barrel catch 29, a bolt i 210, an orientation screw i 211, an axial screw 212, a screw 213, a nut ii 214, and a cylindrical tension spring 215. The striker seat 22 is installed in place from the lower center of the base 21, and the directional screw I211 is installed in a directional screw hole I21 e on the base 21 from the right front and is screwed tightly; the directional screw I211 falls into the directional groove I22 g at the same time, and the upper part of the striker seat is matched with the locking nut 23 to complete the fastening; the cylindrical compression spring 26 and the firing pin 24 are sequentially arranged in place from the center above the firing pin seat 22 downwards, and the upper part is matched with the firing pin cover 25 to complete tight sealing; the cushion block 28 is tightly attached to the base 21 from the lower direction and is tightly fixed and installed below the base 21 by being matched with a pair of bolts I210; the left and right barrel buckles 29 are tightened up under the spacer block 28 by a pair of axial screws 212; four screws 213 are respectively arranged in an adjusting screw hole 28f on the cushion block 28 and a tension spring screw hole 29c on the gun barrel buckle 29, and are sleeved with four nuts II 214 to complete the tightening; the left end and the right end of the cylindrical extension spring 215 are respectively sleeved on two screws 213 on the gun barrel buckle 29, and are respectively sleeved with a nut II 214 to complete the fastening.

The base 21 is of a step shaft structure, a striker seat hole 21a and a striker seat positioning surface 21g are formed in the center, and a striker seat 22 is assembled; the middle part is provided with a box body matching surface II 21c (cylindrical surface) and a box body positioning surface II 21d (end surface) which are used for being matched with the firing mechanism mounting hole 11a to complete the connection with the box body assembly 1; the upper end of the matching surface II 21c of the box body is provided with a fastening thread III 21b which penetrates through the firing mechanism mounting hole 11a of the box body and is fastened by using a round nut II 27; a directional screw hole I21 e is processed right in front of the lower end and is used for being filled with a directional screw I211 to finish the orientation of the striker seat 22; the two sides of the lower end are provided with gun barrel guide surfaces I21 f for guiding the gun barrel 6 to smoothly enter the gun barrel positioning surface I22 h when the gun barrel 6 is assembled; a pair of shoe screw holes 21h are machined in the bottom surface for receiving bolts I210 to complete the assembled connection with the spacer 28.

The striker seat 22 is of a step shaft structure, and is provided with a striker hole 22a and a striker spring hole 22b at the center for respectively accommodating and guiding the striker 24 and the cylindrical compression spring 26; the length of the cylindrical compression spring 26 is longer than that of the firing pin spring hole 22b, and the upper end of the cylindrical compression spring is provided with a firing pin limiting surface I22 c for controlling the limit position of the downward movement of the firing pin 24 so as to ensure that the protruding quantity of the cylindrical compression spring meets the bullet requirements at the moment of firing; the middle part is provided with a base matching surface 22d (cylindrical surface) and a base positioning surface I22 e (end surface) for matching and positioning with the striker seat hole 21a and the striker seat positioning surface 21 g; the rear end of the matching surface is provided with a fastening thread IV 22f for matching with a locking nut 23 to fasten the striker seat 22; an orientation groove I22 g is processed right in front of the middle part and is used for matching with an orientation screw I211 to lock the orientation screw I so that the assembly direction is unique; a gun barrel positioning surface I22 h is processed at the rear of the bottom and is used for contacting with a gun barrel rear end matching surface 6b after the gun barrel 6 is assembled to reliably position the gun barrel, and the bullet 7 is assisted to smoothly enter a bullet bottom nest 22i; the bottom center is provided with a bullet bottom nest 22i for accommodating the tail of the bullet shell 7b to fall into the bullet bottom nest and reliably positioning the bullet shell, so that the firing pin 24 can accurately strike the primer 7c at the center; the firing point hole 22j is machined in the center of the firing barrel 22i for completing firing through the firing point 24 a. The firing pin limiting surface I22 c at the upper end of the firing pin seat is matched with the limiting boss 24c at the upper part of the firing pin, so as to control the limiting position of the downward movement of the firing pin and ensure that the protruding quantity of the firing pin meets the requirements of a bullet at the moment of firing. (the upper and lower parts in this paragraph are referenced to FIG. 16)

The center of the locking nut 23 is provided with a fastening thread V23 a for matching with a fastening thread IV 22f on the striker base 22 to fasten the striker base 22; a symmetrical plane is formed on both sides of the outer circumference as a wrench mating surface I23 b for tightening with a wrench during assembly.

The bottom end of the firing pin 24 is provided with a firing pin point 24a which passes through the firing pin point hole 22j to strike the bullet primer 7c; the middle part is a striking pin body 24b for inserting the striking pin hole 22a and guiding the movement of the striking pin 24; the upper part is provided with a limiting boss 24c which is matched with the striker limiting surface I22 c to control the limiting position in the movement of the striker limiting surface I22 c, and the cylindrical compression spring 26 plays a role in enabling the striker limiting surface I to return upwards; the striking rod 24d is arranged at the tail end and is used for exposing the top of the striking pin cover 25, so that the striking pin cover is convenient for an operator to strike.

A striking rod hole 25a is formed in the center of the top of the striking pin cover 25 to pass through the striking rod 24d; a striker limiting surface II 25b is processed in the inner part and is used for limiting the limit position of upward movement of the striker 24; the center of the bottom is provided with a fastening thread 25c for matching with the fastening thread IV 22f on the striker base 22 to complete the sealing restriction of the striker 24; a pair of wrench matching surfaces II 25d are formed on two sides of the outer circumference and are used for being stressed and fixed by using a wrench during assembly.

The top of the cushion block 28 is a base positioning surface II 28a for being tightly attached to the bottom surface of the base 21 to finish the longitudinal positioning of the base; bolt grooves 28b are formed on two sides of the positioning surface and are used for completing transverse positioning and assembly fastening of the positioning surface and the base 21 through bolts I210; a strut 28c is processed in the middle part and is used for enabling the installation height of the gun barrel buckle 29 to extend downwards and holding the gun barrel 6 in a proper position; the two sides of the bottom are provided with buckle screw holes 28d for loading shaft position screws 212 to complete positioning and assembly of gun barrel buckles 29; an adjusting seat 28e and an adjusting screw hole 28f are formed at the rear of the bottom and are used for being filled with screws 213 to realize adjustment of the closing limit position of the gun barrel buckle 29.

The gun barrel buckle 29 is two symmetric blocks, and the rear end is provided with a shaft hole 29a for penetrating the shaft position screw 212 to complete positioning and assembly fastening with the cushion block 28; a limiting table 29b is machined on the inner side and is used for being matched with a screw 213 to realize adjustment of the closing limit position of the limiting table; the middle part is provided with a tension spring screw hole 29c which is used for loading a screw 213 to transfer the tension of a cylindrical tension spring 215, so that the left and right gun barrel buckles 29 rotate around the axial screw 212 to realize the front end opening and closing of the gun barrel buckles 29 and complete the action of holding towards the center; the front end is provided with a holding surface 29d for reliably holding the gun barrel 6 in place after the gun barrel is put in place, so as to ensure the stable posture of the upward locking movement process; the front end of the holding surface 29d is formed with an inward inclined surface, a barrel guide surface ii 29e, for guiding the barrel 6 into the holding surface 29d smoothly when it is mounted. When the gun tube 6 enters along the gun tube guiding surface II, the pushing force of inward movement enables the two gun tube buckles 29 to open, after the gun tube enters the holding surface, the gun tube buckles 29 are closed under the action of the cylindrical stretching springs 215, and the gun tube is clamped in the gun tube buckles 29.

A plurality of nuts II 214 are respectively arranged on the four screws 213, and play roles in tightening and preventing the cylindrical tension spring 215 from falling out.

The cylindrical compression spring 26, the round nut ii 27, the bolt i 210, the directional screw i 211, the axial screw 212, the screw 213, the nut ii 214, and the cylindrical tension spring 215 are all standard components, and the specifications may be selected according to actual needs, and will not be described in detail herein.

As shown in fig. 23 to 27, the base assembly 3 is composed of a lower base 31, a barrel holder 32, a directional screw ii 33, a round nut iii 34, and a support holder 35. The lower base 31 is screwed into the connecting screw thread II 35b downwards from the center above the supporting seat 35, and after the screwing height and direction are determined to be correct, the lower base is matched with the round nut III 34 to complete the tightening; the gun tube seat 32 is downwards arranged in place from the upper center of the lower base 31, the directional screw II 33 is arranged in the directional screw hole II 31e on the lower base 31 from the right front, and simultaneously falls into the directional groove II 32e of the gun tube seat and is screwed and fixed.

The lower base 31 is of a step shaft structure, and a gun barrel seat hole 31a and a gun barrel seat positioning surface 31b are machined in the center of the top and used for assembling a gun barrel seat 32; the center is provided with a bullet falling hole I31 c for shooting out the bullet 7a instantly by firing; the two sides of the top are provided with a splayed gun barrel guide surface III 31d which is used for guiding the gun barrel 6 to smoothly enter a gun barrel positioning surface II 32b of a gun barrel seat when the gun barrel 6 is assembled; a plane is processed below the gun barrel guide surface III 31d, and a directional screw hole II 31e is processed in the center of the plane and is used for loading a directional screw II 33 to finish the orientation of the gun barrel seat 32; the outer surface of the cylinder below the top is provided with a connecting thread I31 f for being matched with a connecting thread 35c on the supporting seat 35 to realize the supporting connection and the height adjustment of the lower base 31, and simultaneously, the connecting of the lower base 31 and the connecting of the lower base and the connecting screw is fastened by being matched with a round nut III 34; the lower end of the screw thread is a smooth matching surface 31g (cylindrical surface) of the guide hole and is used for matching with the guide hole 11g at the bottom of the box 11 to position and guide the movement of the whole assembly.

The gun tube seat 32 is of a step shaft structure, a gun tube positioning groove 32a is formed in the center of the top and used for reliably positioning the gun tube 6 after the gun tube 6 falls into the center of the device, so that the gun tube 6 is positioned at the center of the device, and the track of the bullet 7a ejected at the moment of firing is vertical; the rear end of the top is provided with a gun barrel positioning surface II 32b which is used for contacting with a gun barrel opening matching surface 6a of the gun barrel 6 and smoothly guiding the gun barrel 6 into the gun barrel positioning groove 32 a; the two sides of the positioning surface are provided with eight-shaped gun barrel guide surfaces IV 32c for continuously guiding the gun barrel 6 by connecting with a gun barrel guide surface III 31d on the lower base 31; the center of the lower part is provided with a bullet drop hole II 32d for shooting out the bullet 7a instantly after firing; an orientation groove II 32e is processed right in front of the middle part and is used for matching an orientation screw II 33 to lock the orientation screw II so that the assembly direction of the orientation screw II is unique; the lower part is provided with a lower base matching surface 32f (cylindrical surface) and a lower base positioning surface 32g (end surface) for matching and positioning with the barrel holder hole 31a and the barrel holder positioning surface 31 b.

The top of the supporting seat 35 is provided with a fastening surface 35a for contacting with the round nut III 34 to realize fastening of threaded connection; the center of the top is provided with a connecting thread II 35b for connecting a connecting thread I31 f on the lower base 31, and a round nut III and the connecting thread II 35b are used for fixing the lower base to prevent loosening; the lower part is a supporting cylinder 35c for transmitting locking supporting force generated by the supporting plate 35 e; two sides of the support cylinder are welded with a pair of right triangle rib plates 35d, and two right angle sides of each plate are respectively fixed on the support cylinder 35c and the support plate 35e so as to improve the structural strength and prevent deformation damage; the bottom support plate is used for matching with the eccentric surface 42c on the eccentric shaft 42 and converting the rotary motion of the eccentric surface into vertical upward linear motion to generate locking support force; the supporting cylinder 35c and the rib plate 35d are respectively provided with a large reducing hole 8 and a two small reducing holes for reducing the overall weight of the assembly, reducing the driving resistance of the locking assembly 4, further reducing the torsional moment required to be input by the driving rod assembly 5 and facilitating the operation of personnel; the bottom center is a guide cylinder abdication hole I35 f for abdicating the guide cylinder 11f at the bottom of the box body 11.

The directional screw II 33 and the round nut III 34 are standard components, and the specification can be selected according to actual needs, and will not be described in detail herein.

28-34, the locking assembly 4 is composed of an eccentric shaft seat 41, an eccentric shaft 42, a driving wheel 43, an eccentric shaft baffle 44, a bolt II 45 and a positioning pin 46. The driving wheel 43 is outwards installed in the driving wheel shaft hole 41d from the inner side of the left side plate 41i of the eccentric shaft seat, and the positioning pin 46 is downwards installed in the positioning pin hole 41e from the upper side of the left side plate 41i of the eccentric shaft seat, so that the driving wheel 43 is fixed; the two eccentric shafts 42 respectively penetrate into the two right eccentric shaft holes 41b of the right side plate 41j of the eccentric shaft seat from right to left and simultaneously fall into the two left eccentric shaft holes 41a of the left side plate 41i of the eccentric shaft seat until the driving teeth 43d are accurately meshed with the driven teeth 42 b; the eccentric shaft baffle 44 is inserted into the baffle groove 41f leftwards from the right side plate 41j of the eccentric shaft seat, and is screwed into the bolt II 45 to complete the fastening.

The eccentric shaft seat 41 is composed of an eccentric shaft seat bottom plate 41h, an eccentric shaft seat left side plate 41i and an eccentric shaft seat right side plate 41j which are fixed on two sides of the upper surface of the eccentric shaft seat bottom plate 41 h; the eccentric shaft seat left side plate 41i is provided with a driving wheel shaft hole 41d and two left eccentric shaft holes 41a, the two left eccentric shaft holes are symmetrically distributed below the driving wheel shaft hole, and the eccentric shaft seat right side plate 41j is provided with a right eccentric shaft hole 41b corresponding to the left eccentric shaft hole 41 a; the driving wheel 43 is installed in the driving wheel shaft hole 41d, two ends of the two eccentric shafts 42 are respectively fixed in the left and right eccentric shaft holes and are arranged at two sides below the driving wheel 43, four holes are respectively coaxial left and right and are respectively used for matching with the left matching surface 42a and the right matching surface 42d on the two eccentric shafts 42 and providing positioning for rotation of the two eccentric shafts; a guide cylinder abdicating hole II 41c is formed in the center of the eccentric shaft seat bottom plate 41 and used for abdicating the guide cylinder 11f at the bottom of the box body 11; a positioning pin hole 41e is formed in the top end of the driving wheel shaft hole 41d and is communicated with the driving wheel shaft hole 41d, so that a positioning pin 46 is inserted to prevent the driving wheel 43 from falling off in the rotation process; the middle of the outer side of the right side plate 41j of the eccentric shaft seat is provided with a baffle plate groove 41f and a baffle plate bolt hole 41g which are respectively used for falling into an eccentric shaft baffle plate 44 and a loading bolt II 45 to be fastened, so that the eccentric shaft 42 is prevented from falling out in the rotation process.

Left and right mating surfaces 42a and 42d are respectively machined at the left and right ends of the eccentric shaft 42 and are respectively used for matching the left eccentric shaft hole 41a and the right eccentric shaft hole 41b; the right side of the left mating surface 42a is machined with a driven tooth 42b which meshes with a driving tooth 43d on the driving wheel 43 for transmitting torque; the diameter of the left matching surface 42a on the shaft is smaller than the diameter of the outer diameter of the driven tooth 42b and smaller than the diameter of the right matching surface 42d, the middle part of the right matching surface 42d is provided with an eccentric surface 42c, the cross section of the eccentric surface is shown in fig. 31, the eccentric surface gradually transits from a plane (with the height of the center of the circle being 20) to a cylindrical surface (with the radius being 27.5), the eccentric surface is generally lifted by using a spiral line, the base component 3 contacted with the eccentric surface can be lifted upwards by rotating, and the maximum lifting distance is the difference between the radius of the cylindrical surface and the distance from the plane to the center, and is 7.5 mm in the invention;

the left end of the driving wheel 43 is a wheel shaft 43a which penetrates into a driving wheel shaft hole 41d to locate the rotation of the driving wheel; the end face is provided with a driving groove 43b for being matched with the inserted driving convex bamboo shoot 51a to transmit the torque output by the driving rod assembly 5; the shaft is provided with a circle of positioning grooves 43c for limiting the axial movement of the positioning rod I46 a in a matching way; a ring of driving teeth 43d is formed on the right circumference, which is engaged with the driven teeth 42b of the eccentric shaft 42 for transmitting torque; a plurality of reducing holes 8 are uniformly distributed on the right end surface and are used for reducing the mass of the driving wheel 43 and the moment of inertia thereof, so that the driving resistance of the locking assembly 4 and the torsion moment required by the driving rod assembly 5 are reduced, and the operation of personnel is facilitated.

The eccentric shaft baffle 44 is a flat plate and is embedded in a baffle groove 41f of the right side plate 41j of the eccentric shaft seat, and a fastening hole I44 a is formed in the center of the eccentric shaft baffle for penetrating a bolt II 45 to fasten the eccentric shaft baffle.

The lower part of the positioning pin 46 is provided with a positioning rod I46 a which is used for being inserted into the positioning pin hole 41e and falling into the positioning groove 43c of the driving wheel 43 at the same time, so as to prevent the driving wheel 43 from being automatically separated; the top is provided with a pull head 46b which is convenient to pull when being disassembled; the outer circumference of the pull head 46b is provided with a plurality of anti-slip grooves 46c for increasing the friction force during lifting and avoiding the operator from slipping off the hand.

Wherein the bolt II 45 is a standard component, the specification can be selected according to actual needs, and detailed description is omitted herein.

As shown in fig. 35 to 38, the driving lever assembly 5 is composed of a driving lever 51, a driving handle 52, a bolt iii 53, and a movable plug 54. The left end of the driving handle 52 is inserted into the handle fitting hole 51d on the driving rod 51 until the fastening hole II 52b thereon is aligned with the bolt hole 51e on the driving rod 51; the bolt III 53 is screwed into and fastened to the bolt hole 51e, and the connection between the driving handle 52 and the driving rod 51 is completed; after the driving rod 51 is inserted into the driving rod seat 14 on the case 11, the movable bolt 54 is downwardly inserted into the movable bolt hole 14f, thereby completing the limitation of the driving rod 51.

The right end of the driving rod 51 is provided with a driving convex bamboo shoot 51a which is used for being inserted into a driving groove 43b on the driving wheel 43 and transmitting torque to the locking component 4; the cylindrical surface in the middle is a driving rod seat matching surface 51b and is used for matching with a driving rod hole 14e on the driving rod seat 14 to finish positioning the driving rod assembly 5; a circle of grooves which are anti-falling grooves 51c are processed on the matching surface and are used for limiting the axial movement of the movable bolt 54 in a matching way; the left end is provided with a handle matching hole 51d for matching with a driving rod matching surface 52a on the driving handle 52 to complete the assembly with the handle; the center of the left end face is provided with a bolt hole 51e for being installed with a bolt III 53 to fasten the handle.

The left end of the driving handle 52 is a driving rod matching surface 52a for matching with a handle matching hole 51d on the driving rod 51 to complete assembly positioning; the matching surface is processed with a fastening hole II 52b for penetrating a bolt III 53 to complete fastening; the right end is a handle body II 52c for an operator to hold, complete rotation and lock the gun barrel 6.

The lower part of the movable bolt 54 is provided with a positioning rod II 54a which is used for being inserted into a movable bolt hole 14f on the driving rod seat 14 and falling into an anti-falling groove 51c of the driving rod 51 at the same time, so as to prevent the driving rod assembly 5 from falling off automatically in use; the top is provided with a lifting ring 54b which is bent and formed, so that the lifting ring is convenient to lift when being disassembled.

Wherein the bolt III 53 is a standard component, the specification can be selected according to actual needs, and detailed description is omitted herein.

The specific use process of the invention is as follows:

firstly, the firing pin 24 in the firing assembly 2 is pressed downwards, so that the firing pin can rebound to a proper position freely, and the driving handle 52 in the driving rod assembly 5 is pulled inwards, so that the eccentric shaft 42 in the locking assembly 4 can be driven to rotate normally;

then, the muzzle of the to-be-tested gun tube 6 loaded with the high-pressure bomb for testing falls into the gun tube positioning groove 32a of the gun tube seat 32 in the base assembly 3 downwards, and the tail of the gun tube 6 is erected until the matching surface 6b of the rear end of the gun tube falls into the gun tube positioning surface I22 h of the firing pin seat 22 in the firing assembly 2, so that the gun tube 6 is reliably held by the gun tube buckle 29. At this time, the barrel 6 is in an upright state, and the bottom of the bullet 7 is facing the magazine 22i on the firing pin seat 22 and is spaced from the magazine by the distance of the locking stroke.

Then, the door plate 12 on the box body assembly 1 is closed, and the locking handle 18 on the door plate 12 is screwed downwards, so that the locking with the box body 11 is completed; the driving handle 52 in the driving lever assembly 5 is pulled to the inner side until the driving lever 51 is rotated to the limit position, and the rotation angle is about 30 ° in the present invention. At this time, the gun tube 6 has risen to a locking position (the locking position is a position when the gun tube moves upwards to a position when the bottom of the bullet is completely abutted against the surface of the bullet bottom socket, and at this time, the gun tube, the bullet and the locking mechanism have no clearance, so that the safety of the bullet during firing can be ensured), and the bottom of the bullet 7 completely falls into the bullet bottom socket 22i of the firing pin seat 22; the eccentric shaft 42 has now rotated by about 90 deg., its eccentric face 42c has formed a self-locking with the support seat 35 on the base assembly 3 and cannot rotate back by itself, and barrel locking is completed.

Finally, the striking rod 24d on the striking pin 24 protruding from the top of the device is struck with a proper force (striking energy of about 0.5J in the present invention) using a mallet or rubber mallet, and firing of the bullet 7 is completed. Can also be matched with a special beating device for use.

And (5) reversely operating according to the steps, and taking out the gun barrel 6, so that the gun barrel strength test is finished.

Claims

1. A gun barrel strength testing device, characterized by: the device consists of a box body assembly (1), a firing assembly (2), a base assembly (3), a locking assembly (4) and a driving rod assembly (5), wherein the box body assembly consists of a box body (11) and a door plate (12), the box body is a cube, the door plate is hinged to the open side of the box body to form a closed cube together, and a firing mechanism mounting hole (11 a) is formed in the top of the box body and used for mounting the firing assembly; a driving rod seat mounting hole (11 b) is formed in the lower left side, and a driving rod seat (14) is arranged in the driving rod seat mounting hole for mounting a driving rod assembly; a guide cylinder (11 f) is fixed at the bottom of the box body and used for positioning the locking assembly, an inner hole of the guide cylinder is a guide hole (11 g) and used for positioning the base assembly, and the firing assembly is arranged in a firing mechanism mounting hole at the top of the box body upwards along the vertical center from the inside of the box body assembly until the firing assembly clings to the inner surface of the upper wall of the box body and is matched with a round nut II (27) to finish the fastening; the locking assembly falls from the inside of the box assembly to the bottom of the box along the vertical center until the driving wheel (43) of the locking assembly is opposite to the driving rod seat on the left side; the base component falls onto the locking component from the inside of the box component along the vertical center until the lower base (31) falls into a guide hole (11 g) at the bottom of the box 11, and the supporting seat (35) of the base component is tightly attached to the eccentric shaft (42) on the locking component; the drive rod assembly is inserted into the drive rod hole (14 e) from the left side of the outside of the box assembly to the right along the axis of the drive rod seat on the left wall until the movable bolt (54) falls into the movable bolt hole (14 f) on the drive rod seat after the drive rod (51) is matched with the driving wheel (43) on the locking assembly in place.

2. The barrel strength testing apparatus of claim 1, wherein: the box body assembly (1) consists of a box body (11), a door plate (12), a trunnion (13), a driving rod seat (14), a round nut I (15), a lock catch shaft (16), a lock catch (17), a lock catch handle (18), a nut I (19) and a cotter pin (110), wherein the door plate is hinged to one open surface of the box body through a pair of trunnions; the driving rod seat is arranged in a driving rod seat mounting hole on the left side of the box body through matching with the round nut I; the lock catch shaft penetrates through a lock catch shaft hole in the middle of the door plate, the lock catch and the lock catch handle are respectively sleeved at the inner end and the outer end, and the lock catch shaft is fastened through the nut I and the cotter pin.

3. The barrel strength testing apparatus of claim 1, wherein: the firing assembly (2) consists of a base (21), a firing pin seat (22), a lock nut (23), a firing pin (24), a firing pin cover (25), a cylindrical compression spring (26), a round nut II (27), a cushion block (28), a gun barrel buckle (29), a bolt I (210), a directional screw I (211), an axial screw (212), a screw (213), a nut II (214) and a cylindrical tension spring (215), wherein the firing pin seat is arranged in place from the center below the base, the directional screw I is arranged in a directional screw hole I (21 e) on the base from the right front, and falls into a directional groove I (22 g) of the firing pin seat for positioning between the firing pin seat and the base, and the fixation of the firing pin seat is completed by the lock nut; the cylindrical compression spring and the firing pin are sequentially arranged in place from the center above the firing pin seat downwards, and the upper part is matched with the firing pin cover to complete tight sealing; the cushion block is tightly attached to the base from the lower direction and is tightly fixed by matching with a pair of bolts I and is arranged below the base; the left barrel buckle and the right barrel buckle are upwards fixed below the cushion block through a pair of axial screws; four screws are respectively arranged in an adjusting screw hole (28 f) on the cushion block and a tension spring screw hole (29 c) on the gun barrel buckle, and are sleeved with a nut II to complete tightening; the left end and the right end of the cylindrical extension spring are respectively sleeved on two screws on the gun barrel buckle, and are respectively sleeved with a nut II to complete the tightening.

4. The barrel strength testing apparatus of claim 1, wherein: the base component (3) consists of a lower base (31), a gun barrel seat (32), a directional screw II (33), a round nut III (34) and a supporting seat (35), wherein the lower base (31) is screwed into a connecting thread II (35 b) downwards from the center above the supporting seat (35) and is matched with the round nut III to finish the fastening; the directional screw II is arranged in a directional screw hole II (31 e) on the lower base from the right front and is screwed tightly and fixed; the gun tube seat is downwards installed in place from the center above the lower base, and the orientation screw II simultaneously falls into an orientation groove II (32 e) of the gun tube seat.

5. The barrel strength testing apparatus of claim 1, wherein: the locking assembly (4) consists of an eccentric shaft seat (41), an eccentric shaft (42), a driving wheel (43), an eccentric shaft baffle (44), a bolt II (45) and a positioning pin (46), wherein the driving wheel is outwards arranged in a driving wheel shaft hole (41 d) from the inner side of a left side plate (41 i) of the eccentric shaft seat, and the positioning pin is downwards arranged in a positioning pin hole (41 e) from the upper side of the left side plate of the eccentric shaft seat to finish the fixation of the driving wheel; the two eccentric shafts respectively penetrate into two right eccentric shaft holes (41 b) of a right side plate (41 j) of the eccentric shaft seat from right to left and fall into two left eccentric shaft holes (41 a) of a left side plate of the eccentric shaft seat at the same time until the driving teeth (43 d) are accurately meshed with the driven teeth (42 b); the eccentric shaft baffle is embedded into a baffle groove (41 f) at the outer side of the right side plate of the eccentric shaft seat, and a bolt II is screwed in to complete the tightening.

6. The barrel strength testing apparatus of claim 5, wherein: the upper surface of the eccentric shaft is provided with an eccentric surface (42 c), the eccentric surface gradually transits from a plane to a cylindrical surface, and the eccentric surface is contacted with the base component.

7. The barrel strength testing apparatus of claim 5, wherein: the left end of the driving wheel is a wheel shaft (43 a) which penetrates into a driving wheel shaft hole (41 d) to position the rotation of the driving wheel; the end face is provided with a driving groove (43 b) for being matched with the inserted driving convex bamboo shoot (51 a) to transmit the torque output by the driving rod assembly; the shaft is provided with a circle of positioning grooves (43 c) for being matched with the positioning rods (46 a) to limit the axial movement of the positioning rods; a circle of driving teeth (43 d) is processed on the circumference of the right side and meshed with the driven teeth on the eccentric shaft; a plurality of reducing holes (8) are uniformly distributed on the right end face.

8. The barrel strength testing apparatus of claim 1, wherein: the driving rod assembly (5) consists of a driving rod (51), a driving handle (52), a bolt III (53) and a movable bolt (54), wherein the left end of the driving handle is inserted into a handle matching hole (51 d) on the driving rod until a fastening hole II (52 b) on the driving handle is aligned with a bolt hole (51 e) on the driving rod; the bolt III is screwed in from the bolt hole (51 e) and is tightly fixed, and the connection between the driving handle and the driving rod is completed; after the driving rod is inserted into the driving rod seat on the box body, the movable bolt is downwards arranged in the movable bolt hole (14 f) to complete the limit of the driving rod.

9. The barrel strength testing apparatus of claim 4, wherein: the supporting seat (35) is composed of a supporting cylinder (35 c) and a supporting plate (35 e) at the bottom of the supporting cylinder, a pair of rib plates (35 d) are symmetrically welded between the supporting cylinder and the supporting plate, and a large decrement hole and a small decrement hole (8) are respectively processed on the supporting cylinder (35 c) and the rib plates (35 d).

10. The barrel strength testing apparatus of claim 1, wherein: the bottom plate (11 i) is welded on the outer side of the bottom of the box body, and a plurality of anchor screw holes (11 h) are formed in the periphery of the bottom plate.