Portable small-caliber electric chamber wiping instrument

Abstract

The utility model provides a portable small-caliber electric bore wiping instrument which comprises a shell, a telescopic piece installed at the front end of the shell, a brush connected with the front end of the telescopic piece and extending out of the shell, and a rotating motor installed in the shell, and the front portion of the shell can extend into a gun barrel bore along with the brush. An output shaft of the rotating motor enables the telescopic piece to stretch out and draw back in the length direction of the shell through the transmission mechanism so as to drive the brush to do reciprocating linear motion to wipe the inner surface of the gun barrel and the bore. According to the transmission mechanism, the rotating motion of the rotating motor is converted into linear motion, the telescopic piece drives the brush to stretch out and retract back and forth relative to the shell, impact vibration is formed through the reciprocating motion, dust accumulated on the inner surface of a bore is removed through scouring, and the brush can move forwards along a rifling while stretching out and drawing back till the whole bore is swept once. When the device is retreated, the brush is kept in telescopic motion and returns along the rifling along the original path, and then the whole bore is swept once in an inserted mode.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of gun barrel cleaning technology, and specifically relates to a portable small-caliber electric bore cleaning instrument. BACKGROUND

[0002] After a certain number of shells are fired, the gun barrel will accumulate dust in the bore, affecting the accuracy and range of the gun, making the resistance larger, and in severe cases, the shells cannot be smoothly launched, leading to bore explosion, so regular cleaning is required. The traditional way to clean the bore is generally manual cleaning with a brush and blowing with a high-pressure air gun. Manual cleaning is time-consuming and labor-intensive, and blowing with a high-pressure air gun cannot remove strongly adhering gun dust.

[0003] CN202311504325.9 discloses a reciprocating cleaning device suitable for a shallow rifling gun barrel cleaning robot, which drives the cleaning brush to reciprocate left and right by setting a reciprocating drive mechanism, thereby reciprocally cleaning the inside of the gun barrel, and can more quickly and efficiently complete the cleaning work, but it is a fixed cleaning device and is not convenient to carry.

[0004] Therefore, CN201811063304.7 discloses a pneumatic portable gun bore cleaning machine, which uses compressed gas to push the plug head to work in short-stroke impact vibration and cooperates with a spiral brush. The cleaning machine can rotate and vibrate forward or backward in the gun barrel to complete the cleaning task. However, the pneumatic cleaning machine needs to be sealed, and the cleaning machine needs to be frequently reciprocated, which can easily cause the sealing ring to be worn out, resulting in a non-sealed and failed device, reduced reliability, and the need to frequently replace the sealing ring, increasing the maintenance workload of the cleaning machine. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the technical problems existing in the prior art, and the purpose of the utility model is to provide a portable small-caliber electric bore cleaning instrument.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a portable small-caliber electric bore cleaning instrument, comprising a shell, a telescopic piece installed at the front end of the shell, a brush extending out of the shell connected with the front end of the telescopic piece, and a rotating motor installed in the shell, the front part of the shell can enter the gun barrel bore with the brush, the output shaft of the rotating motor drives the telescopic piece to extend and retract along the length direction of the shell through a transmission mechanism, so as to drive the brush to reciprocate linearly and clean the inner surface of the gun barrel bore.

[0007] The technical scheme has the advantages that the transmission mechanism converts the rotary motion of the output shaft of the rotary motor into linear motion, so that the telescopic member drives the brush to reciprocatingly extend and retract relative to the shell, and the dust on the inner surface of the barrel is removed by impact vibration and flushing through the reciprocating motion; the brush moves forward along the rifling while extending and retracting, and sweeps the whole barrel until the whole barrel is swept again; when the device is retracted, the brush keeps extending and retracting while moving back along the rifling, and the whole barrel is swept again; the utility model has the advantages of small size, portability, and the ability to remove the dust with strong adhesion; the brush is driven to reciprocate by the rotary motor, so the utility model is an electric barrel cleaning instrument driven by electricity, and compared with the pneumatic type, the utility model does not need to be provided with a sealing ring, the reliability is improved, and the maintenance workload caused by damage of the sealing ring is reduced.

[0008] In a preferred embodiment of the utility model, the transmission mechanism comprises a central shaft coaxially fixed with the output shaft of the rotary motor and a transmission head coaxially fixed at the front end of the central shaft, one of the transmission head and the telescopic member is provided with a path slot, and the other is provided with a sliding column clamped in the path slot and capable of sliding in the path slot; the sliding column can slide in the path slot to make the telescopic member extend and retract by rotating the transmission head.

[0009] The technical scheme has the advantages that the rotary motion is converted into linear motion through cooperation of the path slot and the sliding column, the structure is simple, and the operation is reliable.

[0010] In another preferred embodiment of the utility model, the path slot is arranged on the outer wall of the transmission head, the telescopic member is provided with a guide slot with an open rear end, the transmission head is inserted into the guide slot and can slide therein, and the sliding column is fixed on the side wall of the guide slot and clamped into the path slot of the transmission head.

[0011] The technical scheme has the advantages that the guide slot guides the extension and retraction of the telescopic member, the circumferential position of the sliding column does not change when the transmission head rotates, the path slot pushes / pulls the sliding column to move forward / retract with the rotation of the transmission head, so that the telescopic member drives the brush to reciprocatingly extend and retract relative to the shell, and the operation is reliable.

[0012] In a preferred embodiment of the utility model, the side wall of the telescopic member is provided with a mounting hole communicating with the guide slot, the sliding column is inserted into the mounting hole in the radial direction and extends into the guide slot, and the outer end of the sliding column has a limiting head slidingly connected with the inner wall of the shell outside the telescopic member.

[0013] The technical scheme has the advantages that the sliding column is movably mounted through the mounting hole, the sliding column is limited by the shell to prevent falling outward, the connection between the sliding column and the telescopic member is detachable, and therefore the telescopic member and the transmission head are also detachable, which is convenient for subsequent maintenance.

[0014] In a preferred embodiment of the utility model, the transmission head rotates one circle, and the telescopic member reciprocates once.

[0015] In a preferred embodiment of the utility model, the path groove comprises a first path segment extending in the circumferential and axial directions, and a second path segment symmetrically arranged with the first path segment, the front end of the first path segment is connected with and communicates with the front end of the second path segment, and the rear end of the first path segment is connected with and communicates with the rear end of the second path segment.

[0016] The first path segment and the second path segment are symmetrically arranged, when the transmission head rotates to make the slide post slide in the first path segment and the second path segment, the sliding directions of the slide post are opposite, and the reciprocating extension and contraction of the brush are realized.

[0017] In a preferred embodiment of the utility model, the first path segment is a right helical groove of a half circle, the second path segment is a left helical groove of a half circle, and the connection part of the first path segment and the second path segment is smoothly transitioned.

[0018] The slide post slides from one end of the right helical groove to the other end, the transmission head rotates by a half circle, the brush extends forward, the slide post slides from one end of the left helical groove to the other end, the transmission head rotates by a half circle again, the brush retracts backward, and the reciprocating extension and contraction of the brush are realized.

[0019] In another preferred embodiment of the utility model, a rolling bearing is further installed in the shell and surrounds the central shaft.

[0020] The rolling bearing supports the central shaft, reduces the friction, and improves the stability of the central shaft.

[0021] In another preferred embodiment of the utility model, the rear end of the brush is threadedly connected to an internal threaded hole in the front end of the telescopic piece.

[0022] The brush and the telescopic piece are detachably connected, different diameter brushes can be used, and the gun barrel cleaning and sweeping work of different calibers can be met.

[0023] In another preferred embodiment of the utility model, the shell comprises a middle shell part, a front shell part detachably and fixedly connected to the front end of the middle shell part, and a rear shell part detachably and fixedly connected to the rear end of the middle shell part, the telescopic piece is installed in the front shell part, and the rotary motor is installed in the rear shell part.

[0024] The shell is arranged as a detachable multi-segment structure, and the gun barrel cleaning device can be maintained after being segmented and disassembled.

[0025] The additional aspects and advantages of the utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0026] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the references to the following drawings, of which:

[0027] Figure 1 is a schematic diagram of the external structure of the portable small-caliber electric bore cleaning instrument of the embodiment.

[0028] Figure 2 is Figure 1 A-A sectional view in the embodiment.

[0029] Figure 3 is Figure 2 the local enlarged view at B in the embodiment.

[0030] Figure 4 is a schematic diagram of the telescopic member in the embodiment.

[0031] Figure 5 is a perspective view of the transmission head in the embodiment.

[0032] Figure 6 is a front view of the transmission head in the embodiment, showing the first path segment of the front.

[0033] The reference signs in the drawings of the specification include: shell 1, front shell part 1a, middle shell part 1b, rear shell part 1c, telescopic member 2, brush 3, rotary motor 4, cable 5, transmission mechanism 6, central shaft 7, transmission head 8, path groove 9, first path segment 9a, second path segment 9b, slide column 10, rolling bearing 11, guide groove 12, internal thread hole 13, mounting hole 14, protective sleeve 15, sliding groove 16. DETAILED DESCRIPTION

[0034] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0035] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "longitudinal", "transverse", "vertical", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0036] In the description of the utility model, unless otherwise specified and limited, it needs to be explained that the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be mechanical connection or electrical connection, it also can be the communication inside two elements, it can be direct connection, or it can be indirect connection through intermediate medium, for ordinary skilled person in the art, the specific meaning of the above terms can be understood according to specific circumstances.

[0037] The utility model provides portable small caliber electric bore wiping appearance, such as Figure 1 And Figure 2 As shown in a preferred embodiment, the cannon barrel wiping device comprises a shell 1, a telescopic piece 2 mounted at the front end of the shell 1 and in sliding connection with the inner wall of the shell, a brush 3 connected with the front end of the telescopic piece 2 and extending out of the shell 1, and a rotating motor 4 mounted in the shell 1, and the cable 5 of the rotating motor 4 extends rightward from the rear end of the shell 1. The outer diameter of the front part of the shell 1 is smaller than the inner diameter of the cannon barrel bore, and the front part of the shell 1 can extend into the cannon barrel bore along with the brush 3, the output shaft of the rotating motor extends from rear to front, and the output shaft of the rotating motor 4 drives the telescopic piece 2 to extend and retract along the length direction of the shell 1 through a transmission mechanism 6, so as to drive the brush 3 to reciprocate linearly and wipe the inner surface of the cannon barrel bore.

[0038] The caliber in the present application refers to the inner diameter of the gun barrel, i.e. the distance between two opposite sun lines of a linear weapon. According to the caliber, the artillery can be divided into three types, large caliber artillery (high artillery is 100 mm, ground artillery is 152 mm, and naval artillery is 130 mm or more), medium caliber artillery (high artillery is 61-100 mm, ground artillery is 76-152 mm, and naval artillery is 76-130 mm or so), and small caliber artillery (high artillery is 20-60 mm, ground artillery is 20-75 mm, and naval artillery is 20-57 mm).

[0039] The cannon barrel wiping device of the utility model has a diameter of 37 mm, a length of 430 mm, and a brush 3 with a length of 140 mm at the front end, the outer periphery of the brush 3 is provided with a plurality of bristles, the bristles are nylon wires to prevent scratching the cannon barrel, and specifically, 128 nylon wires can be uniformly arranged on a nylon rod with a diameter of 25 mm and a length of 75 mm, the outer diameter of the brush 3 is greater than the inner diameter of the cannon barrel bore, and the brush 3 can be used for cleaning the cannon barrel with a caliber of 35-40 mm, and the utility model is a small caliber electric bore wiping device, and different diameter ranges of cannon barrels can be configured with different diameter brushes 3.

[0040] The transmission mechanism 6 converts the rotational motion of the output shaft of the rotary motor 4 into linear motion, causing the telescopic component 2 to drive the brush 3 to reciprocate relative to the outer casing 1, with a stroke of 10mm and a maximum frequency of 150 times per minute. The speed can be adjusted by regulating the rotational speed of the rotary motor 4. After the device is powered on, the output shaft of the rotary motor 4 rotates, causing the brush 3 to retract. Holding the rear of the outer casing 1, the brush 3 is inserted into the gun barrel. While maintaining the retraction and extension of the brush 3, it moves forward along the rifling. The reciprocating motion creates impact vibration to remove the accumulated dust in the gun barrel until the entire gun barrel has been cleaned. Then, by grasping the cable 5 and pulling back, the device will return along the rifling while maintaining the retraction and extension of the brush 3, cleaning the entire gun barrel again.

[0041] like Figure 2 and Figure 4 As shown, in this utility model, the rear end of the brush 3 is threadedly connected to the internal threaded hole 13 at the front end of the telescopic member 2. Brushes 3 of different diameters all have mounting parts with the same external thread size, ensuring that brushes 3 of different sizes can be installed on the telescopic member 2 to meet the needs of bore cleaning work of different calibers.

[0042] like Figure 2 and Figure 3 As shown, in this utility model, the transmission mechanism 6 includes a central shaft 7 coaxially fixed to the output shaft of the rotary motor 4 and a transmission head 8 coaxially fixed to the front end of the central shaft 7. A rolling bearing 11 sleeved on the central shaft 7 is also installed in the outer casing 1. The structure and installation method of the rolling bearing 11 are existing technologies and will not be described in detail here. One of the transmission head 8 and the telescopic member 2 is provided with a path groove 9, and the other is provided with a sliding column 10 that is engaged in and can slide within the path groove 9. For example, the path groove 9 is located on the outer wall of the transmission head 8, and the telescopic member 2 is provided with a guide groove 12 with an open rear end. The transmission head 8 is inserted into the guide groove 12 and can slide within it. The sliding column 10 is fixed to the side wall of the guide groove 12 and engaged in the path groove 9 of the transmission head 8. By rotating the transmission head 8, the sliding column 10 can slide in the path groove 9 to extend and retract the telescopic member 2, thus realizing the reciprocating extension and retraction motion of the brush 3.

[0043] Combination Figure 5 and Figure 6 As shown, in a preferred embodiment, when the transmission head 8 rotates one revolution, the telescopic member 2 drives the brush 3 to reciprocate and extend once. The path groove 9 includes a first path segment 9a extending circumferentially and axially, and a second path segment 9b symmetrically arranged with respect to the first path segment 9a. The front end of the first path segment 9a is connected to and communicates with the front end of the second path segment 9b, and the rear end of the first path segment 9a is connected to and communicates with the rear end of the second path segment 9b. Preferably, the first path segment 9a is a half-turn right-hand spiral groove, and the second path segment 9b is a half-turn left-hand spiral groove, with a smooth transition at the connection between the first path segment 9a and the second path segment 9b.

[0044] When the brush 3 is in the fully extended state as shown in Figure 2 and Figure 3 the slide post 10 is located at the front end of the path groove 9, the rotary motor 4 rotates the transmission head 8 by half a circle through the central shaft 7, the path groove 9 rotates with the central shaft 7, the slide post 10 slides in the first path segment 9a of the path groove 9, under the circumferential limiting action of the shell 1, the telescopic member 2 does not rotate with the transmission head 8, the transmission head 8 pulls the slide post 10 backward through the path groove 9, which makes the telescopic member 2 drive the brush 3 to retract backward, until the slide post 10 is located at the rear end of the path groove 9, the brush 3 is fully retracted; the transmission head 8 continues to rotate by half a circle, the slide post 10 slides in the second path segment 9b of the path groove 9, the transmission head 8 pushes the slide post 10 forward through the path groove 9, which makes the telescopic member 2 drive the brush 3 to extend forward, until the slide post 10 is located at the front end of the path groove 9, the brush 3 is fully extended. Such reciprocating movement realizes the reciprocating extension and retraction of the brush 3.

[0045] As shown in Figure 2-4 , in another preferred embodiment, the side wall of the telescopic member 2 is provided with a mounting hole 14 communicating with the guide groove 12, the slide post 10 is radially inserted into the mounting hole 14 and extends into the guide groove 12, the outer end of the slide post 10 has a limiting head located outside the telescopic member 2, the limiting head of the slide post 10 is clamped in the sliding groove 16 of the inner wall of the shell 1 and can slide along the length direction of the shell 1, the shell 1 limits the slide post 10 from falling outward.

[0046] As shown in Figure 2 and Figure 3 , in another preferred embodiment, the shell 1 includes a middle shell part 1b, a front shell part 1a detachably and fixedly connected to the front end of the middle shell part 1b, and a rear shell part 1c detachably and fixedly connected to the rear end of the middle shell part 1b, the front shell part 1a is connected to the middle shell part 1b by snap connection or through screw connection, the rear shell part 1c is connected to the middle shell part 1b by snap connection or through screw connection. The telescopic member 2 is installed in the front shell part 1a, so that the telescopic member 2 can be exposed by detaching the front shell part 1a, facilitating maintenance; the rotary motor 4 is installed in the rear shell part 1c, so that the rotary motor 4 can be exposed by detaching the rear shell part 1c, facilitating maintenance.

[0047] Preferably, in order to improve the strength and service life of the instrument, the shell 1 is made of metal material, a protective sleeve 15 is provided on the front part of the shell 1 and fixedly connected thereto, the protective sleeve 15 is made of nylon, which avoids scratching the bore by the front part of the metal shell 1, and specifically, the protective sleeve 15 can be integrally connected to the front shell part 1a, such as by screw connection.

[0048] In the description of the present specification, the description with reference to the terms "preferred embodiment", "one embodiment", "some embodiments", "an example", "a specific example" or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0049] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A portable small-diameter electric rim-cleaving instrument, characterized in that, The device includes an outer shell, a telescopic component installed at the front end of the outer shell, a brush connected to the front end of the telescopic component extending out of the outer shell, and a rotary motor installed in the outer shell. The front part of the outer shell can extend into the barrel bore along with the brush. The output shaft of the rotary motor causes the telescopic component to extend and retract along the length of the outer shell through a transmission mechanism, so as to drive the brush to reciprocate linearly to wipe the inner surface of the barrel bore.

2. The portable small-caliber electric rim-cleaving instrument according to claim 1, characterized in that, The transmission mechanism includes a central shaft coaxially fixed to the output shaft of the rotary motor and a transmission head coaxially fixed to the front end of the central shaft. One of the transmission head and the telescopic member is provided with a path groove, and the other is provided with a sliding column that is engaged in the path groove and can slide in the path groove. By rotating the transmission head, the sliding column can slide in the path groove to make the telescopic member extend and retract.

3. The portable small-caliber electric rim-cleaving instrument according to claim 2, characterized in that, The path groove is provided on the outer wall of the transmission head, and the telescopic member is provided with a guide groove with a rear opening. The transmission head is inserted into the guide groove and can slide therein. The sliding column is fixed to the side wall of the guide groove and is engaged in the path groove of the transmission head.

4. The portable small-caliber electric bore cleaning instrument according to claim 3, characterized in that, The telescopic component has a mounting hole on its side wall that communicates with the guide groove. The sliding column is radially inserted into the mounting hole and extends into the guide groove. The outer end of the sliding column has a limiting head located outside the telescopic component and slidably connected to the inner wall of the outer shell.

5. The portable small-caliber electric rim-cleaving instrument according to claim 2, characterized in that, For every revolution of the transmission head, the telescopic component reciprocates once.

6. The portable small-caliber electric bore cleaning instrument according to claim 5, characterized in that, The path groove includes a first path segment extending circumferentially and axially, and a second path segment symmetrically arranged with respect to the first path segment. The front end of the first path segment is connected to and communicates with the front end of the second path segment, and the rear end of the first path segment is connected to and communicates with the rear end of the second path segment.

7. The portable small-caliber electric bore cleaning instrument according to claim 6, characterized in that, The first path segment is a half-turn right spiral groove, the second path segment is a half-turn left spiral groove, and the connection between the first path segment and the second path segment is a smooth transition.

8. The portable small-caliber electric rim-cleaving instrument according to claim 2, characterized in that, The outer casing also contains a rolling bearing fitted around the central shaft.

9. The portable small-caliber electric bore cleaning instrument according to any one of claims 1-8, characterized in that, The rear end of the brush is threadedly connected to the internal threaded hole at the front end of the telescopic component.

10. The portable small-caliber electric bore cleaning instrument according to any one of claims 1-8, characterized in that, The outer shell includes a middle shell, a front shell that is detachably fixed to the front end of the middle shell, and a rear shell that is detachably fixed to the rear end of the middle shell. The telescopic member is installed in the front shell, and the rotary motor is installed in the rear shell.

Images