CN207922945U - A kind of novel gun pipe connecting structure - Google Patents
A kind of novel gun pipe connecting structure Download PDFInfo
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- CN207922945U CN207922945U CN201820312766.7U CN201820312766U CN207922945U CN 207922945 U CN207922945 U CN 207922945U CN 201820312766 U CN201820312766 U CN 201820312766U CN 207922945 U CN207922945 U CN 207922945U
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- casing
- gun barrel
- gun
- annular groove
- screw
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Abstract
The utility model provides a kind of novel gun pipe connecting structure, including gunlock and gun barrel axial in casing, casing, gunlock is mounted on gun tube rear end, gunlock forms latch gap with gun barrel clearance fit, the gun barrel outer circle is level-one step outer circle comprising roundlet shell of column and big cylindrical section, roundlet shell of column form step surface with big cylindrical section transition position, the roundlet shell of column is inserted into the casing endoporus, and the big cylindrical section diameter is more than casing diameter of bore；Annular gasket is equipped between the casing front end face and step surface, which contradicts the other end with casing front end face and limited to gun barrel axial position with step surface conflict；Taper annular groove is equipped in the middle part of the roundlet shell of column, the casing is circumferentially equipped with the threaded hole of multiple perforations, screw thread hole site is corresponding with the taper annular groove position, and screw passes through the threaded hole, the screw conical surface that gun barrel is located on casing with the annular groove cone match.The utility model is simple in structure, and assembly is convenient, and latch gap is effectively ensured.
Description
Technical field
The utility model is related to firearms technical field, specially a kind of novel gun pipe connecting structure.
Background technology
Gun barrel connection structure in the prior art is as shown in Figure 1, Figure 2, Figure 3 shows, and gun barrel 4 is pressed into casing 1, then bores gun barrel
Pin hole, press fitting gun barrel pin 12 to which gun barrel 4 to be located on casing 1, and then form the body of a gun.
As shown in Figure 2 and Figure 3, the gunlock 5 in casing 1 is mounted on 4 rear end of gun barrel, when gunlock 5 closes locking with the body of a gun, to protect
Latch gap δ is demonstrate,proved, needs to repair the locking supporting surface 6 for filing gunlock of milling.When shooting, gun barrel bears pressure F, to ensure that connection is strong
Degree, 4 outer circle of gun barrel are required for being interference fitted with 1 endoporus of casing, gun barrel pin 12 with pin hole.
There are following defects for the gun barrel connection structure of the above-mentioned prior art：
A) press fitting gun barrel 4 is interference fitted with casing 1, needs specific tooling, tooling to take there are higher when being pressed gun barrel 4
Loss rate, and the strength being applied on gun barrel 4 is very big, gun barrel is easy to happen bending, needs to be straightened again, time-consuming and laborious；
B) it is to ensure latch gap δ, needs to repair the locking supporting surface 6 for filing gunlock of milling, it is more demanding to operator, artificially
Factor increases, and latch gap δ cannot be guaranteed, and then influences entire firearms safety and stability；
C) above-mentioned press fitting gun barrel, bore gun barrel pin hole, press fitting gun barrel pin and repair locking process and not only have what parts were scrapped
Problem, and low production efficiency.
Utility model content
For the defects in the prior art, the utility model provides a kind of novel gun pipe connecting structure, simple in structure, dress
With convenient, firearms latch gap is effectively ensured.
Technical solutions of the utility model are as follows：
A kind of novel gun pipe connecting structure, including gunlock and gun barrel axial in casing, casing, after gunlock is mounted on gun barrel
End, gunlock form latch gap with gun barrel clearance fit, and key is：The gun barrel outer circle is level-one step outer circle, packet
Include roundlet shell of column and big cylindrical section, roundlet shell of column forms step surface with big cylindrical section transition position, described in the roundlet shell of column is inserted into
Casing endoporus, the big cylindrical section diameter are more than casing diameter of bore；Annular is equipped between the casing front end face and step surface
Gasket, the annular gasket one end contradict the other end with casing front end face and are contradicted to the limit of gun barrel axial position with step surface；It is described
Be equipped with taper annular groove in the middle part of roundlet shell of column, the casing is circumferentially equipped with the threaded hole of multiple perforations, screw thread hole site with it is described
Taper annular groove position corresponds to, and screw passes through the threaded hole, the screw conical surface that gun barrel is located in machine with the annular groove cone match
On casket.
The utility model assembling process：Gun barrel outer circle is level-one step outer circle, and gun barrel includes roundlet shell of column and big cylindrical section,
Roundlet shell of column and big cylindrical section transition position form step surface, are first mounted on annular gasket on the step of gun barrel, then gun barrel is small
Cylindrical section is inserted into casing endoporus and is compressed toward casing direction, and annular gasket one end is made to be contradicted with casing front end face, the other end with
Gun barrel step surface contradicts, then tightens screw, and screw passes through the threaded hole on casing, the screw conical surface and the cone on gun barrel roundlet shell of column
The cone match of shape annular groove finally checks latch gap δ, if unqualified just match different thickness to which gun barrel to be fixed on casing
The annular gasket of degree is adjusted, and after latch gap qualification, last screw gluing locks gun barrel.
The utility model has the advantages that compared with prior art：
According to the above-mentioned technical solution, novel gun pipe connecting structure described in the utility model, sets in gun barrel outer circle
Set step, gun barrel and the thickness control latch gap by adjusting annular gasket when casing assembly connection.Match obstructed thickness
Annular gasket adjusts latch gap, by way of screw lock gun barrel, gun barrel is fixed on casing.The utility model knot
Structure is simple, and assembly is convenient, and latch gap is effectively ensured, that is, improves production efficiency, and saved production cost.With the prior art
Middle gun barrel is interference fitted with casing, gun barrel pin and the body of a gun (gun barrel is known as the body of a gun after being connect with casing) interference fit, gunlock and rifle
Needs are repaiied file gunlock locking supporting surface and are compared when body closes locking, and the utility model is omitted press fitting gun barrel, bores gun barrel pin hole, is pressed
Gun barrel pin, gunlock repair the cumbersome process such as file locking supporting surface, both improve production efficiency, in turn avoid press fitting gun barrel process and cause
Gun barrel it is after bending be straightened again, and then avoid the problem of parts during these cumbersome process are scrapped.
Preferably, the gun barrel taper annular groove conical surface depth be more than the screw conical surface depth, screw front end face not with cone
Shape annular groove bottom surface contacts.
When ensureing to tighten screw in any case in this way, screw front end face does not contact with taper annular groove bottom surface and causes to lock
It is insecure.
Preferably, the gun barrel taper annular groove conical surface is identical as the angle of the screw conical surface.
The angle of the gun barrel conical surface described in this way is identical as the angle of the screw conical surface, and the conical surface is made to be bonded closer, bonding strength
Higher, when bearing pressure, conical surface deformation is small.During service life, conical surface deformation can be compensated by tightening screw, makes rifle
Pipe is reliably locked on casing.
Preferably, the quantity of the threaded hole on the casing is two, the setting of two threaded holes in the casing lower part and
It is arranged about casing axisymmetrical.
Description of the drawings
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific implementation mode or attached drawing needed to be used in the description of the prior art are briefly described.In all the appended drawings, similar
Element or part are generally identified by similar reference numeral.In attached drawing, each element or part might not be according to actual ratios
It draws.
Fig. 1 is gun barrel attachment structure schematic diagram in the prior art；
Fig. 2 be in Fig. 1 A-A to sectional view；
Fig. 3 is B-B direction sectional view in Fig. 2；
Fig. 4 is the utility model structure diagram；
Fig. 5 be in Fig. 4 A-A to sectional view；
Fig. 6 is B-B direction sectional view in Fig. 5；
In attached drawing：1- casings；2- screws；3- annular gaskets；4- gun barrels；5- gunlocks；6- is latched supporting surface；7- annular grooves are bored
Face；8- screw front end faces；9- annular grooves bottom surface；The 10- screw conical surfaces；11- step surfaces；12- gun barrel pins；13- roundlet shell of columns；14- is big
Cylindrical section；15- annular grooves.
Specific implementation mode
The embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings.
In the present embodiment, the orientation or position of the instructions such as term "upper" "lower" " left side " " right side " " preceding " " rear " " upper end " " lower end "
It is to be based on the orientation or positional relationship shown in the drawings to set relationship, is merely for convenience of describing, not indicate or imply the indicated
Device or element must have a particular orientation, with specific azimuth configuration or operation, therefore should not be understood as new to this practicality
The limitation of type.
A kind of novel gun pipe connecting structure as shown in Figures 4 to 6, including gunlock 5 and rifle axial in casing 1, casing
Pipe 4, gunlock 5 are mounted on 4 rear end of gun barrel, and gunlock 5 forms latch gap δ with 4 clearance fit of gun barrel.4 outer circle of the gun barrel is one
Grade step outer circle comprising roundlet shell of column 13 and big cylindrical section 14, roundlet shell of column form step surface 11 with big cylindrical section transition position.
The roundlet shell of column 13 is inserted into 1 endoporus of the casing, and 14 diameter of big cylindrical section is more than casing diameter of bore.The casing 1
Annular gasket 3 is equipped between front end face and step surface 11, which contradicts the other end and rifle with 1 front end face of casing
Pipe step surface 11, which contradicts, limits 4 axial position of gun barrel.13 middle part of the roundlet shell of column is equipped with taper annular groove 15, the casing 1
It is circumferentially equipped with the threaded hole of multiple perforations, screw thread hole site is corresponding with the taper annular groove position, and screw 2 passes through the screw thread
Gun barrel is located on casing by hole, the screw conical surface 10 with the bellmouth conical surface 7 cooperation.
Originally be in embodiment in order to ensure to tighten screw in any case when, screw front end face 8 not with taper annular groove bottom surface 9
It contacts and causes to lock insecure.7 depth of the gun barrel taper annular groove conical surface is more than 10 depth of the screw conical surface, and then ensures
Screw front end face 8 does not contact always with bellmouth bottom surface 9.
In the present embodiment, the taper annular groove conical surface 7 is identical as 8 angle of the screw conical surface.The gun barrel conical surface described in this way
Angle it is consistent with the angle of the screw conical surface, make the conical surface be bonded closer, bonding strength higher, when bearing pressure F, the conical surface deformation
It is small.During service life, conical surface deformation can be compensated by tightening screw 2, gun barrel 4 is made reliably to be locked on casing 1.
The quantity of bellmouth on gun barrel 4 can be one or more, and firearms structure allows, multiple screws and taper annular groove
It is more preferable to lock intensity.The quantity of threaded hole on casing 1 described in the present embodiment is two, and two threaded holes are arranged in institute
It states casing lower part and is arranged about casing axisymmetrical.
Novel gun pipe connecting structure assembling process described in the utility model is as follows：
4 outer circle of gun barrel is level-one step outer circle, and gun barrel includes roundlet shell of column 13 and big cylindrical section 14, roundlet styletable and great circle
Styletable transition position forms step surface 11, is first mounted on annular gasket 3 on the step of gun barrel, then gun barrel roundlet shell of column 13 is inserted into
It is compressed in casing endoporus and toward 1 direction of casing, 3 one end of annular gasket is made to be contradicted with 1 front end face of casing, the other end and gun barrel 4
Terrace 11 contradicts, then tightens screw 2, and screw passes through the threaded hole on casing 1, the screw conical surface 7 and the cone on gun barrel roundlet shell of column
Gun barrel is fixed on casing by the cooperation of shape annular groove conical hole, finally checks latch gap δ, if unqualified just apolegamy different-thickness
Annular gasket is adjusted, after latch gap qualification, last screw gluing locks gun barrel.
The utility model has the advantages that compared with prior art：
According to the above-mentioned technical solution, novel gun pipe connecting structure described in the utility model, sets in gun barrel outer circle
Set step, gun barrel and the thickness control latch gap by adjusting annular gasket when casing assembly connection.Match obstructed thickness
Annular gasket adjusting latch gap is adjusted gun barrel is fixed on casing by way of screw lock gun barrel.The utility model
Simple in structure, assembly is convenient, and latch gap is effectively ensured, that is, improves production efficiency, and saved production cost.With existing skill
Gun barrel and casing are interference fitted in art, and gun barrel pin and the body of a gun (gun barrel connect with casing after referred to as the body of a gun) are interference fitted, gunlock and
Needs are repaiied file gunlock locking supporting surface and are compared when the body of a gun closes locking, and the utility model is omitted press fitting gun barrel, bores gun barrel pin hole, presses
Dress gun barrel pin, gunlock repair the cumbersome process such as file locking supporting surface, both improve production efficiency, in turn avoid press fitting gun barrel process and draw
The gun barrel that rises is after bending to be straightened again, and then avoids the problem of parts during these cumbersome process are scrapped.
Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that；
It can still modify to the technical solution recorded in previous embodiment, either to which part or all technical features
Carry out equivalent replacement；And these modifications or replacements, the utility model embodiment that it does not separate the essence of the corresponding technical solution
The range of technical solution should all cover in the claim of the utility model and the range of specification.
Claims (4)
1. a kind of novel gun pipe connecting structure, including gunlock and gun barrel axial in casing, casing, after gunlock is mounted on gun barrel
End, gunlock form latch gap with gun barrel clearance fit, it is characterised in that：The gun barrel outer circle is level-one step outer circle, packet
Include roundlet shell of column and big cylindrical section, roundlet shell of column forms step surface with big cylindrical section transition position, described in the roundlet shell of column is inserted into
Casing endoporus, the big cylindrical section diameter are more than casing diameter of bore；Annular is equipped between the casing front end face and step surface
Gasket, the annular gasket one end contradict the other end with casing front end face and are contradicted to the limit of gun barrel axial position with step surface；It is described
Be equipped with taper annular groove in the middle part of roundlet shell of column, the casing is circumferentially equipped with the threaded hole of multiple perforations, screw thread hole site with it is described
Taper annular groove position corresponds to, and screw passes through the threaded hole, the screw conical surface that gun barrel is located in machine with the annular groove cone match
On casket.
2. novel gun pipe connecting structure according to claim 1, it is characterised in that：The gun barrel taper annular groove conical surface depth
More than the screw conical surface depth, screw front end face is not contacted with taper annular groove bottom surface.
3. novel gun pipe connecting structure according to claim 1, it is characterised in that：The gun barrel taper annular groove conical surface and institute
The angle for stating the screw conical surface is identical.
4. novel gun pipe connecting structure according to claim 1, it is characterised in that：The quantity of threaded hole on the casing
It it is two, two threaded hole settings are arranged in the casing lower part and about casing axisymmetrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820312766.7U CN207922945U (en) | 2018-03-07 | 2018-03-07 | A kind of novel gun pipe connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820312766.7U CN207922945U (en) | 2018-03-07 | 2018-03-07 | A kind of novel gun pipe connecting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207922945U true CN207922945U (en) | 2018-09-28 |
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ID=63597947
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820312766.7U Active CN207922945U (en) | 2018-03-07 | 2018-03-07 | A kind of novel gun pipe connecting structure |
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| CN (1) | CN207922945U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108168364A (en) * | 2018-03-07 | 2018-06-15 | 重庆建设工业(集团)有限责任公司 | A kind of novel gun pipe connecting structure |
-
2018
- 2018-03-07 CN CN201820312766.7U patent/CN207922945U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108168364A (en) * | 2018-03-07 | 2018-06-15 | 重庆建设工业(集团)有限责任公司 | A kind of novel gun pipe connecting structure |
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