A sealed door body and sterilizer thereof

Abstract

The application belongs to the technical field of biological sterilization, and particularly relates to a sealing door body and a sterilizer thereof. The application provides a sealing door body, which comprises: a door beam, which is used for being hingedly arranged on a barrel body; a connecting block, which is rotationally arranged on the door beam, and the rotation axis of the connecting block is perpendicular to the axis of the barrel body; a door cover, which is used for opening and closing the barrel body when the door beam is rotated on the barrel body; a sealing ring, which is arranged on the door cover along the circumference of the door cover, and is used for sealing the door cover and the barrel body; and a driving member, which is arranged on the connecting block, and is used for driving the door cover to move along the axial direction of the barrel body. The application provides a sealing door body and a sterilizer thereof, and solves the technical problem of uneven pressure on the sealing ring caused by the inclination of the barrel cover in the related art.

Description

Technical Field

[0001] This application belongs to the field of biological sterilization technology, specifically relating to a sealed door and its sterilizer. Background Technology

[0002] A sterilizer is an instrument that can kill or remove microorganisms, including bacterial spores and non-pathogenic microorganisms, from a medium of transmission; an autoclave is a device that uses saturated pressure steam to rapidly and reliably disinfect and sterilize items.

[0003] The sterilizer of the related technology includes a barrel body and a lid hinged to the barrel body. The barrel body and the lid are equipped with locking devices for fixing the lid to a closed state. Because the barrel body needs to undergo multiple pressure changes during a sterilization process, a sealing ring is used to achieve a seal between the lid and the barrel body. The sealing ring is set on the lid. When the lid is closed onto the barrel body, the lid and the barrel body squeeze the sealing ring to achieve a seal between the barrel body and the lid.

[0004] However, since the lid is hinged to the barrel body, it inevitably tilts when it is closed. When the lid is tilted, the pressure on the sealing ring will be uneven, which may lead to leakage. Summary of the Invention

[0005] This application provides a sealing door and its sterilizer to solve the technical problem of uneven pressure on the sealing ring caused by the tilt of the lid in related technologies.

[0006] On the one hand, this application provides a sealed door body, including: A door lintel, which is hinged to the barrel body; A connecting block, which is rotatably mounted on the door beam, with the axis of rotation of the connecting block perpendicular to the axis of the barrel body; A door cover is provided to open and close the barrel body when the door beam rotates relative to the barrel body. A sealing ring is provided on the door cover along the circumference of the door cover, and the sealing ring is used to seal the door cover and the barrel body. A driving component is disposed on the connecting block, and the driving component is used to drive the door cover to move along the axial direction of the barrel body.

[0007] In some embodiments, the driving member includes a connecting rod, a driving rod, and an elastic member. The connecting rod passes through and is fixedly connected to the connecting block. The driving rod passes through and is slidably connected within the connecting rod. The door cover is connected to the driving rod. The driving rod is used to drive the door cover to abut against the barrel body by relying on the elastic force of the elastic member.

[0008] In some embodiments, a groove is formed on the connecting rod along the length direction of the connecting rod, the driving rod is located in the groove, the elastic element includes a spring, the spring is sleeved on the driving rod, and one end of the spring abuts against the groove.

[0009] In some embodiments, the drive rod includes a sleeve and a screw located within the groove, the screw being inserted into and threadedly connected to the sleeve, a portion of the sleeve being located outside the groove and connected to the door cover, the other end of the spring abutting against the head of the screw, and the screw driving the door cover to abut against the barrel body via the sleeve.

[0010] In some embodiments, the door cover is rotatably connected to the drive rod, and the rotation axis of the door cover coincides with the axis of the barrel body.

[0011] In some embodiments, the surface of the connecting rod facing the door cover is configured as a hemispherical surface, and the door cover has a hemispherical groove for the hemispherical surface to move into.

[0012] In some embodiments, the connecting rod passes through and is threaded into the connecting block.

[0013] In some embodiments, the connecting block has threaded abutment bolts on both sides, the shank of which is used to abut against the connecting rod.

[0014] In some embodiments, two door beams are provided, and rotating bolts are threaded through and connected to both door beams. Rotating holes are provided on both sides of the connecting block for the rods of the two rotating bolts to be inserted. The connecting block is rotatably mounted on the door beam through the rotating bolts and the rotating holes.

[0015] On the other hand, this application provides a sterilizer, including a barrel and a sealing door disposed on the barrel.

[0016] This application provides a sealing door and its sterilizer. When the hinge point of the door beam on the barrel is rotated, the door beam can drive the door cover to move towards the barrel. At this time, because the connecting block is rotatably set on the door beam, the connecting block can drive the door cover to rotate, thereby adjusting the state of the door cover and preventing misalignment between the door cover and the barrel. The driving component can make the door cover move along the axial direction of the barrel, so that the door cover can further drive the sealing element to abut against the barrel, thereby preventing uneven pressure at various positions of the sealing element due to the tilt of the door cover, and improving the sealing effect of the sealing element between the door cover and the barrel. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0018] Figure 1 This is a schematic diagram of the structure of the sealing door provided in an embodiment of this application;

[0019] Figure 2 for Figure 1 Schematic diagram of half-section structure in Figure 1 ;

[0020] Figure 3 for Figure 2 A half-section structural diagram of the connecting block in the diagram;

[0021] Figure 4 for Figure 1 Schematic diagram of half-section structure in Figure 2 ;

[0022] Figure 5 This is a schematic diagram of the sterilizer provided in an embodiment of this application.

[0023] Explanation of reference numerals in the attached figures:

[0024] 100. Door lintel; 110. Rotating bolt; 120. Mounting block;

[0025] 200. Connecting block; 210. Abutment bolt; 220. Rotating hole;

[0026] 300, door cover; 310, flange 310; 320, hemispherical groove;

[0027] 400. Driving component; 410. Connecting rod; 411. Groove; 412. Hemispherical surface;

[0028] 420. Drive rod; 421. Sleeve; 422. Screw; 423. Connecting ring;

[0029] 430. Elastic element; 431. Spring;

[0030] 500. Barrel body.

[0031] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0033] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the invention described herein can be implemented, for example, in orders other than those illustrated or described herein.

[0034] In this application, the terms "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0035] The sterilizer of the related technology includes a barrel body and a lid hinged to the barrel body. The barrel body and the lid are equipped with locking devices for fixing the lid to a closed state. Because the barrel body needs to undergo multiple pressure changes during a sterilization process, a sealing ring is used to achieve a seal between the lid and the barrel body. The sealing ring is set on the lid. When the lid is closed onto the barrel body, the lid and the barrel body squeeze the sealing ring to achieve a seal between the barrel body and the lid.

[0036] However, since the lid is hinged to the barrel body and the lid and barrel body are rigidly connected during installation, there will be deviations in the manufacturing of parts and the assembly of products. Therefore, when the lid is closed onto the barrel body, the lid will inevitably be tilted. When the lid is tilted, it will cause uneven pressure on various parts of the sealing ring, which may lead to leakage. In order to ensure that each part of the sealing ring has sufficient deformation, greater pressure needs to be applied to the sealing ring, which affects the service life of the sealing ring.

[0037] To address the aforementioned technical problems, this application provides a sealing door and its sterilizer. When the door cover needs to be driven to seal the barrel, the hinge point of the door beam on the barrel is rotated, causing the door beam to move the door cover toward the barrel. The connecting block is rotated between the two door beams, causing the connecting block to swing the door cover. This, combined with the rotation of the door cover displacement sleeve, adjusts the door cover to a coaxial position with the barrel. At this time, the door cover is continuously driven to move toward the barrel, causing the door cover to rely on the elastic force of the spring in the compressed state to drive the sealing element to abut against the barrel. This prevents misalignment between the door cover and the barrel and prevents uneven force on the sealing element due to the tilt of the door cover, thereby improving the sealing effect of the sealing element between the door cover and the barrel. This solves the technical problem of uneven pressure on the sealing ring caused by the tilt of the barrel cover in related technologies.

[0038] Combination Figure 1 and Figure 2 On the one hand, this application provides a sealed door body, including a door beam 100, a connecting block 200, a door cover 300, and a driving component 400 (see...). Figure 3 The lintel 100 is hinged to the barrel 500; the connecting block 200 is rotatably mounted on the lintel 100, and the axis of rotation of the connecting block 200 is perpendicular to the axis of the barrel 500. Figure 1 In this context, x represents the rotation axis of the connecting block 200. Figure 1 (where y is the axis of the barrel 500); the door cover 300 is used to open and close the barrel 500 when the door beam 100 rotates relative to the barrel 500. A sealing ring is provided on the door cover 300 along the circumference of the door cover 300. The sealing ring is used to seal the door cover 300 and the barrel 500; the driving component 400 is provided on the connecting block 200. The driving component 400 is used to drive the door cover 300 to move along the axial direction of the barrel 500.

[0039] Combination Figure 1 and Figure 2 In this embodiment, the door cover 300 is an arc-shaped structure with its center recessed towards the inside of the barrel 500. With this arc-shaped door cover 300, when the door beam 100 rotates at the hinge point, causing the door cover 300 to move towards the barrel, the periphery of the arc-shaped door cover 300 abuts against the periphery of the barrel 500, enabling the door cover 300 to automatically adjust and improving the sealing effect between the door cover 300 and the barrel 500. Two door beams 100 are provided, with mounting blocks 120 between each end of the two door beams 100. The mounting blocks 120 are hinged to the barrel 500, thereby causing the two door beams 100 to be hinged to the barrel 500. A flange 310 is provided around the periphery of the door cover 300. The cross-section of the flange 310 is arc-shaped, and the concave part of the arc-shaped flange 310 faces the axis of the door cover 300. A sealing ring is disposed within the flange 310 along its circumference.

[0040] By adopting the above technical solution, when the hinge point of the door beam 100 on the barrel 500 is rotated, the door beam 100 can drive the door cover 300 to move toward the barrel 500. At this time, because the connecting block 200 is rotatably set on the door beam 100, the connecting block 200 can drive the door cover 300 to rotate, thereby adjusting the state of the door cover 300 and preventing misalignment between the door cover 300 and the barrel 500. The driving component 400 can make the door cover 300 move along the axial direction of the barrel 500, so that the door cover 300 can further drive the sealing component to abut against the barrel 500, thereby preventing uneven pressure at various positions of the sealing component due to the tilt of the door cover 300 and improving the sealing effect of the sealing component between the door cover 300 and the barrel 500.

[0041] Combination Figure 2 and Figure 3 The driving component 400 includes a connecting rod 410, a driving rod 420, and an elastic element 430. The connecting rod 410 passes through and is fixedly connected to the connecting block 200. The driving rod 420 passes through and is slidably connected inside the connecting rod 410. The door cover 300 is connected to the driving rod 420. The driving rod 420 is used to drive the door cover 300 to abut against the barrel body 500 by relying on the elastic force of the elastic element 430.

[0042] By adopting the above technical solution, when the door cover 300 drives the sealing element to abut against the barrel 500, the elastic element 430 can drive the door cover 300 to move inward toward the barrel 500, so that the door cover 300 relies on the elastic force of the elastic element 430 to drive the sealing element to abut against the barrel 500, thereby further improving the sealing effect of the sealing element between the door cover 300 and the barrel 500. The setting of the elastic element 430 enables the door cover 300 to automatically drive the sealing element to abut against the barrel 500.

[0043] Combination Figure 2 and Figure 3 A groove 411 is provided on the connecting rod 410 along its length direction. Figure 3 In the z direction, i.e. the axial direction of the connecting rod 410, the driving rod 420 is located inside the groove 411, and the elastic element 430 includes a spring 431, which is sleeved on the driving rod 420, with one end of the spring 431 abutting against the inner wall of the groove 411.

[0044] Combination Figure 2 and Figure 3 In this embodiment, the end of the groove 411 away from the door cover 300 is provided with the connecting rod 410 passing through it, and the end of the groove 411 near the door cover 300 is provided as a closed part.

[0045] By adopting the above technical solution, since one end of the spring 431 is set on the inner wall of the groove 411 and the other end is set on the drive rod 420, when the spring 431 is in a compressed state, the drive rod 420 can drive the door cover 300 towards the barrel 500 by relying on the elastic force of the spring 431 in the compressed state, so that the door cover 300 drives the sealing element to press against the barrel 500 by relying on the elastic force of the spring 431 in the compressed state. The use of the spring 431 has a simple structure and improves the contact effect between the door cover 300 and the sealing element and the barrel 500.

[0046] Combination Figure 2 and Figure 3 The drive rod 420 includes a sleeve 421 and a screw 422 located inside the groove 411. The screw 422 is inserted into and threadedly connected inside the sleeve 421. Part of the sleeve 421 is located outside the groove 411 and connected to the door cover. The other end of the spring 431 is fixedly mounted on the screw 422. The screw 422 drives the door cover 300 to abut against the barrel 500 through the sleeve 421.

[0047] Combination Figure 2 and Figure 3 In this embodiment, the sleeve 421, screw 422, and connecting rod 410 all have circular cross-sections. The sleeve 421 is slidably disposed on the closed portion. A connecting ring 423 is sleeved on and slidably connected to the screw 422. One end of the spring 431 is fixedly connected to the closed portion, and the other end is fixedly connected to the connecting ring 423. When the screw 422 is threadedly connected to the sleeve 421, the connecting ring 423 abuts against the head of the screw 422 by the elastic force of the spring 431 in the compressed state. In other embodiments, one end of the spring 431 can abut against the closed portion, and the other end of the spring 431 can abut against the connecting ring 423.

[0048] By adopting the above technical solution, the screw 422 is inserted and threaded into the sleeve 421, making the screw 422 detachably connected to the sleeve 421. When the door cover 300 needs to be maintained or replaced, the door cover 300 is moved to the sleeve 421 and removed from the connecting rod 410, which facilitates the maintenance and replacement of the door cover 300 and the seals. The threaded connection enables the screw 422 and the sleeve 421 to be coaxially positioned, and improves the firmness of the fixation between the screw 422 and the sleeve 421, making it easy to disassemble and assemble the sleeve 421 and the screw 422.

[0049] In other embodiments, the drive unit 400 can be replaced with an electric cylinder fixedly mounted on the connecting block 200, with the drive end of the electric cylinder passing through and slidably connected to the connecting block 200, and the door cover 300 rotatably mounted on the drive end of the electric cylinder. The electric cylinder can also drive the door cover 300 to move along the axis of the barrel 500; or the electric cylinder can be replaced with a pneumatic cylinder or a hydraulic cylinder, etc.

[0050] Combination Figure 2 and Figure 3 The door cover 300 is rotatably connected to the drive rod 420, and the rotation axis of the door cover 300 coincides with the axis of the barrel body 500.

[0051] By adopting the above technical solution, since the connecting block 200 can drive the door cover 300 to swing, and by rotating the door cover 300 on the drive rod 420, the adjustment range of the door cover 300 is further improved, thereby further preventing the phenomenon of misalignment between the door cover 300 and the barrel body 500, and further improving the sealing effect between the door cover 300 and the barrel body 500.

[0052] Combination Figure 2 and Figure 3 The surface of the connecting rod 410 facing the door cover 300 is set as a hemispherical surface 412, and a hemispherical groove 320 is provided on the door cover 300 for the hemispherical surface 412 to move into.

[0053] By adopting the above technical solution, when the door cover 300 drives the sealing element to abut against the barrel body 500, the connecting rod 410 and the door cover 300 are also in abutting state. The setting of the hemispherical surface 412 and the hemispherical groove 320 can guide the door cover 300 when it abuts against the connecting rod 410. When the hemispherical surface 412 is completely moved into the hemispherical groove 320, the door cover 300 and the connecting rod 410 are coaxial, so that the door cover 300 and the barrel body 500 maintain a coaxial state, which further indirectly improves the sealing effect between the door cover 300 and the barrel body 500.

[0054] Combination Figure 2 and Figure 3 The connecting rod 410 is threaded through and connected to the connecting block 200.

[0055] By adopting the above technical solution, the connecting rod 410 is threaded through and connected to the connecting block 200, which facilitates the removal of the connecting rod 410 for maintenance of the connecting rod 410 and the screw 422 and sleeve 421 inside the connecting rod 410. The threaded connection improves the firmness of the connecting rod 410 in the connecting block 200 and prevents misalignment between the connecting rod 410 and the connecting block 200. It also facilitates the disassembly and assembly of the connecting rod 410.

[0056] Combination Figure 2 and Figure 3 The connecting block 200 has threaded bolts 210 on both sides, and the shank of the bolts 210 is used to abut against the connecting rod 410.

[0057] By adopting the above technical solution, the abutment bolt 210 is driven to be screwed on the connecting block 200, so that the rod of the abutment bolt 210 abuts against the connecting rod 410, thereby preventing the door cover 300 from rotating inside the connecting block 200 when it rotates, thus improving the fixing effect of the connecting rod 410 to the connecting block 200.

[0058] In other embodiments, the connecting rod 410 can be inserted and slidably connected within the connecting block 200. Fixing holes are provided on both sides of the connecting rod 410 for the insertion of the rod portions of the abutment bolts 210. By driving the abutment bolts 210 to be screwed on the connecting block 200, the rod portions of the abutment bolts 210 are inserted into the fixing holes, thus achieving the same installation and fixing of the connecting rod 410.

[0059] Combination Figure 1 and Figure 4 There are two door beams 100, and each door beam 100 is threaded with a rotating bolt 110. The connecting block 200 has rotating holes 220 on both sides for inserting the rods of the two rotating bolts 110. The connecting block 200 is rotatably mounted on the door beam 100 through the rotating bolts 110 and the rotating holes 220.

[0060] In this embodiment, the shank of the rotating bolt 110 includes a threaded connection portion and an insertion portion. The diameter of the insertion portion is smaller than the diameter of the threaded connection portion. The threaded connection portion is used to pass through and be threadedly connected to the door beam 100. The diameter of the rotating hole 220 is similar to the diameter of the insertion portion, so that the insertion portion can be inserted into the rotating hole 220. The use of the threaded connection portion and the insertion portion facilitates the positioning of the insertion position of the rotating bolt 110, preventing the rotating bolt 110 from being not fully inserted or being inserted too much.

[0061] By adopting the above technical solution, by driving the two rotating bolts 110 to be turned on the door beam 100, the shank of the rotating bolts 110 is inserted into the rotating holes 220 on both sides of the connecting block 200, thereby making the connecting block 200 rotatably positioned between the two door beams 100. By driving the rotating bolts 110 to be removed from the rotating holes 220, the connecting block 200 can be removed between the two door beams 100, thus facilitating the disassembly and assembly of the connecting block 200.

[0062] In other embodiments, the rotating bolt 110 can be replaced with a fixed shaft, which is inserted through and rotatably connected to the door beam 100. The fixed shaft and the door beam 100 are interference-fitted so that the fixed shaft can be fixed to any position after rotation by the friction between it and the door beam 100. This allows the door cover 300 to be automatically fixed to any position after rotation when the connecting block 200 drives the door cover 300 to rotate.

[0063] like Figure 5As shown, on the other hand, this application provides a sterilizer, including a barrel 500 and a sealing door disposed on the barrel 500.

[0064] The specific structure of the sealing door has been described in detail in the above embodiments and will not be repeated here.

[0065] The door beam 100 is hinged to the barrel body 500. The barrel body 500 is provided with a locking mechanism for fixing the door cover 300 to a locked state. The locking mechanism is existing technology, and its specific structure will not be described in detail.

[0066] When it is necessary to move the cover 300 to seal the barrel 500, the hinge point of the door beam 100 on the barrel 500 is rotated, causing the door beam 100 to move the cover 300 toward the barrel 500. The connecting block 200 is rotated between the two door beams 100, causing the connecting block 200 to swing the cover 300. This, combined with the rotation of the cover 300 displacement sleeve 421, adjusts the cover 300 to a coaxial state with the barrel 500. At this time, the cover 300 is continuously moved toward the barrel 500, so that the cover 300, relying on the elastic force of the spring 431 in the compressed state, drives the sealing element to abut against the barrel 500. This prevents the cover 300 and the barrel 500 from being out of axis, and prevents the sealing element from being unevenly stressed at various positions due to the tilt of the cover 300. This improves the sealing effect of the sealing element between the cover 300 and the barrel 500.

[0067] The technical solutions of this application have been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it is readily understood by those skilled in the art that the scope of protection of this application is obviously not limited to these specific embodiments. The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A sealed door body, characterized in that, include: A door beam (100) is hinged to the barrel body (500); A connecting block (200) is rotatably mounted on the door beam (100), and the axis of rotation of the connecting block (200) is perpendicular to the axis of the barrel body (500). A door cover (300) is provided to open and close the barrel body (500) when the door beam (100) rotates relative to the barrel body (500). A sealing ring is provided on the door cover (300) along the circumference of the door cover (300) and the sealing ring is used to seal the door cover (300) and the barrel body (500). A driving component (400) is disposed on the connecting block (200) and is used to drive the door cover (300) to move along the axial direction of the barrel body (500); The driving component (400) includes a connecting rod (410), a driving rod (420), and an elastic element (430). The connecting rod (410) passes through and is fixedly connected to the connecting block (200). The driving rod (420) passes through and is slidably connected inside the connecting rod (410). The door cover (300) is connected to the driving rod (420). The driving rod (420) is used to drive the door cover (300) to abut against the barrel body (500) by relying on the elastic force of the elastic element (430). The door cover (300) is rotatably connected to the drive rod (420), and the rotation axis of the door cover (300) coincides with the axis of the barrel body (500); The surface of the connecting rod (410) facing the door cover (300) is configured as a hemispherical surface (412), and the door cover (300) is provided with a hemispherical groove (320) for the hemispherical surface (412) to move into.

2. The sealing door body according to claim 1, characterized in that, The connecting rod (410) has a groove (411) along its length. The driving rod (420) is located in the groove (411). The elastic element (430) includes a spring (431). The spring (431) is sleeved on the driving rod (420), and one end of the spring (431) abuts against the bottom wall of the groove (411).

3. The sealing door body according to claim 2, characterized in that, The drive rod (420) includes a sleeve (421) and a screw (422) located in the groove (411). The screw (422) is inserted into and threadedly connected to the sleeve (421). Part of the sleeve (421) is located outside the groove (411) and connected to the door cover (300). The other end of the spring (431) abuts against the head of the screw (422). The screw (422) drives the door cover (300) to abut against the barrel body (500) through the sleeve (421).

4. The sealing door body according to any one of claims 1-3, characterized in that, The connecting rod (410) passes through and is threaded into the connecting block (200).

5. The sealing door body according to claim 4, characterized in that, The connecting block (200) has threaded bolts (210) threaded through and connected to both sides, and the shank of the bolts (210) is used to abut against the connecting rod (410).

6. The sealing door body according to any one of claims 1-3, characterized in that, Two door beams (100) are provided, and rotating bolts (110) are threaded through and connected to both door beams (100). Rotating holes (220) are provided on both sides of the connecting block (200) for inserting the rods of the two rotating bolts (110). The connecting block (200) is rotatably mounted on the door beams (100) through the rotating bolts (110) and the rotating holes (220).

7. A sterilizer, characterized in that, It includes a barrel body (500) and a sealing door body as described in any one of claims 1-6, which is disposed on the barrel body (500).

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