Exhaust tool and inner container
By using an exhaust fixture in the inner liner, the risk of water leakage during the inner liner processing was solved, and an exhaust method that does not require additional exhaust holes was achieved, ensuring the pressure uniformity of the blow molding process and the structural strength of the inner liner.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-03-17
AI Technical Summary
Existing technologies pose a risk of water leakage during the inner liner manufacturing process, mainly because vent holes need to be opened on the side wall of the metal inner liner for venting, which increases the risk of water leakage.
The exhaust fixture includes an installation part and an extension part. The installation part is a detachable and sealed pipe joint connected to the inner liner. The extension part extends into the inner liner. The inner diameter of the exhaust channel is smaller than the inner diameter of the pipe joint. The gas in the inner liner is discharged through the exhaust channel, avoiding the need to open additional exhaust holes in the outer liner.
This effectively avoids the risk of water leakage from the inner liner, maintains the integrity of the outer liner, and ensures sufficient blow molding pressure during the blow molding process, allowing the outer wall of the plastic liner to fit well against the inner wall of the outer liner, thus improving the structural strength of the inner liner.
Smart Images
Figure CN224003934U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water heater technology, and in particular to exhaust device and inner tank. Background Technology
[0002] Existing technology provides an inner liner comprising a metal inner liner (outer liner) and a plastic inner liner. The plastic inner liner is formed by blow molding a plastic preform inside the metal inner liner. This process requires cutting the inner liner to create an opening, and then sealing and installing a pipe fitting at the opening. The pipe fitting is used to install components such as a water inlet pipe. However, in existing processes, the opening is usually sealed first, and vent holes are made on the side wall of the metal inner liner for venting, which increases the risk of water leakage. Utility Model Content
[0003] The first technical problem solved by this utility model is to provide an exhaust fixture that can exhaust the gas during the inner liner processing to reduce the risk of water leakage from the inner liner.
[0004] The second technical problem solved by this invention is to provide an inner liner that can reduce the risk of leakage.
[0005] The first technical problem mentioned above is solved by the following technical solution:
[0006] A venting fixture is provided for venting gas from an inner liner. The venting fixture includes an mounting portion and an extension portion arranged sequentially along the axial direction and connected to each other. The mounting portion is used for a pipe joint that is detachably and sealingly connected to the inner liner. The extension portion is used to extend into the inner liner. The venting fixture has an venting channel that passes through the mounting portion and the extension portion. The inner diameter of the venting channel is smaller than the inner diameter of the pipe joint.
[0007] The venting fixture described in this utility model has the following advantages compared to the prior art: The venting fixture includes an installation part and an extension part arranged sequentially along the axial direction and connected to each other. The venting fixture has a venting channel penetrating the installation part and the extension part. When the venting fixture is used to prepare the inner liner, the installation part is connected to the pipe joint for easy installation. The extension part extends into the outer liner. During the blow molding of the plastic blank, the plastic blank continuously expands, and the gas inside the outer liner is discharged through the venting channel of the venting fixture, preventing gas between the outer liner and the plastic blank from hindering the expansion of the plastic blank. Furthermore, the venting channel has a small inner diameter, effectively preventing excessively rapid venting and maintaining sufficient blow molding pressure, allowing the outer wall of the plastic liner to fit well against the inner wall of the outer liner. After the plastic liner is formed, the venting fixture can be removed and reused. By setting up the venting fixture, venting is achieved at the inner liner pipe joint, eliminating the need for additional venting holes in the outer liner, maintaining the integrity of the outer liner, and reducing the risk of leakage from the inner liner.
[0008] In one embodiment, the outer diameter of the extension is smaller than the inner diameter of the pipe joint. When the exhaust fixture is installed into the inner liner, the extension passes through the pipe joint and extends into the inner liner. The extension protrudes from the inner wall of the inner liner, and a gap is formed between the outer wall of the extension and the inner wall of the pipe joint.
[0009] In one embodiment, one of the mounting part and the pipe fitting is provided with an external thread, and the other is provided with an internal thread, and the mounting part and the pipe fitting are threadedly connected.
[0010] In one embodiment, the pipe fitting is provided with external threads, the mounting portion is provided with internal threads, and the mounting portion is sleeve-shaped and fitted onto the outside of the pipe fitting; or...
[0011] The pipe joint is provided with an internal thread, the mounting part is provided with an external thread, and the mounting part is located inside the pipe joint.
[0012] In one embodiment, the exhaust fixture is provided with a handle for rotating the exhaust fixture to be threadedly connected to the pipe fitting.
[0013] In one embodiment, the handle portion includes two handle shafts disposed on the mounting portion at one end away from the extension portion, and the two handle shafts are axially symmetrical about the exhaust passage; or...
[0014] The handle is located at the end of the exhaust fixture away from the extension, the exhaust channel passes through the handle along an axial direction perpendicular to the exhaust channel, and the cross-section of the handle is rectangular.
[0015] In one embodiment, at least one groove is formed on the inner wall of the pipe joint, the groove communicating with the gap, and the groove extending axially around the pipe joint; or, the lower end face of the pipe joint has a stepped portion communicating with the gap.
[0016] In one embodiment, the inner diameter of the exhaust passage is 4 mm.
[0017] In one embodiment, the pipe fitting includes a sewage pipe fitting and a drain pipe fitting, and the venting fixture includes a first venting fixture for connecting the sewage pipe fitting and a second venting fixture for connecting the drain pipe fitting, wherein the extension length of the second venting fixture within the inner liner is greater than the extension length of the first venting fixture within the inner liner.
[0018] The second technical problem mentioned above is solved by the following technical solution:
[0019] An inner liner is provided, comprising an outer liner body and a plastic liner body that is attached to the inner wall surface of the outer liner body. The outer liner body is formed of a rigid material, and a pipe joint communicating with the interior of the outer liner body is provided on the side wall of the outer liner body. The plastic liner body is formed by blow molding of a plastic liner body blank. During the blow molding of the plastic liner body, the inner liner body is vented by the venting fixture in any of the above embodiments.
[0020] Compared with the prior art, the inner liner of this utility model has the following advantages: the inner liner is vented by the venting fixture in any of the above embodiments, which eliminates the need for additional venting holes in the outer liner, thus maintaining the integrity of the outer liner and reducing the risk of leakage. Moreover, compared with the inner diameter of the pipe joint, the inner diameter of the venting channel is relatively small, which can avoid the problem of excessively rapid venting. While venting some of the gas in the plastic blank, it ensures that the remaining gas in the plastic blank maintains sufficient blow molding pressure. Finally, the outer wall surface of the plastic liner can fit well with the inner wall surface of the outer liner, improving the structural strength of the inner liner. Attached Figure Description
[0021] Figure 1 This is a structural cross-sectional view of the exhaust fixture connecting the inner liner provided in an embodiment of the present utility model;
[0022] Figure 2 for Figure 1 A magnified view of part A in the middle;
[0023] Figure 3 A schematic diagram of the structure of the exhaust fixture connecting the inner liner provided in this embodiment of the utility model. Figure 1 ;
[0024] Figure 4 A schematic diagram of the structure of the exhaust fixture connecting the inner liner provided in this embodiment of the utility model. Figure 2 ;
[0025] Figure 5 Schematic diagram of the structure of the first exhaust fixture provided in the embodiment of this utility model Figure 1 ;
[0026] Figure 6 Schematic diagram of the structure of the second exhaust fixture provided in the embodiment of this utility model Figure 1 ;
[0027] Figure 7 Schematic diagram of the structure of the first exhaust fixture provided in the embodiment of this utility model Figure 2 ;
[0028] Figure 8 Schematic diagram of the structure of the second exhaust fixture provided in the embodiment of this utility model Figure 2 ;
[0029] Figure 9 This is a schematic diagram of the structure of the sewage pipe connector provided in an embodiment of the present utility model;
[0030] Figure 10 A structural cross-sectional view of the sewage pipe connector provided in an embodiment of this utility model;
[0031] Figure 11 This is a cross-sectional view of the inner liner provided in an embodiment of the present utility model.
[0032] Label Explanation:
[0033] 1. Mounting part; 2. Extension part; 3. Exhaust passage; 4. Handle part; 41. Handle shaft; 5. First exhaust fixture; 6. Second exhaust fixture;
[0034] 100. Outer liner; 101. End opening; 200. Plastic liner; 201. Covering layer; 300. Pipe connector; 301. Sewage pipe connector; 302. Drain pipe connector; 303. Stepped section; 304. Groove. Detailed Implementation
[0035] The technical solutions of the embodiments 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, and 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.
[0036] In the description of this application, it should be understood that the terms "upper", "lower", "vertical", "horizontal", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0037] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.
[0038] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0039] like Figures 1 to 8 As shown, this embodiment of the invention first provides an exhaust fixture for venting gas from the inner tank. The inner tank can be used in water heaters or as a pressure vessel for other pressure equipment. The inner tank includes an outer tank body 100 and a plastic tank body 200 attached to the inner wall of the outer tank body 100. The outer tank body 100 is made of a rigid material, and the side wall of the outer tank body 100 is provided with a pipe joint 300 communicating with the interior of the outer tank body 100. The plastic tank body 200 is formed by blow molding of a plastic preform. The rigid material used to prepare the outer tank body 100 includes, but is not limited to, materials with strong structural stability and high compressive strength such as metals, ceramics, titanium, and crystal. The processing method of the outer tank body 100 can be carried out by welding or bonding of the molded sheet metal, or by casting or other processes. The processing method of the outer tank body 100 is prior art, and this embodiment does not impose specific limitations. Regarding the processing of the plastic liner 200, the plastic raw material is melted to obtain a molten material, and the molten material is made into a plastic liner blank; the plastic liner blank is placed inside the outer liner 100 through the end opening 101 of the outer liner 100, and gas with a preset blow molding pressure and preset blow molding temperature is introduced into the plastic liner blank, and the plastic liner 200 is formed through the blow molding process.
[0040] The venting fixture includes a mounting part 1 and an extension part 2 arranged sequentially and connected to each other along the axial direction. The mounting part 1 is detachably and sealingly connected to the pipe joint 300, and the extension part 2 extends into the outer shell 100. The venting fixture has an venting channel 3 that penetrates the mounting part 1 and the extension part 2, and the inner diameter of the venting channel 3 is smaller than the inner diameter of the pipe joint 300. During the blow molding of the plastic preform, the plastic preform continuously expands, and the gas inside the outer shell 100 is discharged through the venting channel 3 of the venting fixture, preventing the gas between the outer shell 100 and the plastic preform from hindering the expansion of the plastic preform. Moreover, the venting channel 3 can effectively prevent the problem of excessively rapid venting, ensuring that the remaining gas inside the plastic preform maintains sufficient blow molding pressure, so that the outer wall surface of the final formed plastic shell 200 can fit well with the inner wall surface of the outer shell 100. After the plastic shell 200 is formed, the venting fixture can be removed and reused. By setting up the venting fixture, venting can be achieved at the pipe joint 300 of the inner liner, eliminating the need for additional venting holes in the outer liner 100, thus maintaining the integrity of the outer liner 100 and reducing the risk of leakage from the inner liner.
[0041] In one embodiment, gas with a preset blow molding pressure of 0.5 MPa to 0.9 MPa is introduced into the plastic preform. To meet the aforementioned blow molding pressure requirement, the inner diameter of the exhaust channel 3 is set to 4 mm.
[0042] The outer diameter of the extension 2 is smaller than the inner diameter of the pipe joint 300. When the exhaust fixture is installed into the inner liner, the extension 2 passes through the pipe joint 300 and extends into the outer liner 100. The extension 2 protrudes from the inner wall of the inner liner, and a gap is formed between the outer wall of the extension 2 and the inner wall of the pipe joint 300.
[0043] One of the mounting part 1 and the pipe fitting 300 is provided with an external thread, and the other with an internal thread. The mounting part 1 and the pipe fitting 300 are threadedly connected. The pipe fitting 300 is used to install components such as inlet and outlet water pipes. The threaded connection method of the pipe fitting 300 needs to be set according to the compatible inlet and outlet water pipes, and the threaded connection method of the mounting part 1 needs to be adapted to the threaded connection method of the pipe fitting 300. The connection between the venting fixture and the pipe fitting 300 is achieved through the threaded connection method, which facilitates disassembly and assembly and is convenient to use.
[0044] In one embodiment, the pipe fitting 300 is provided with external threads, the mounting part 1 is provided with internal threads, and the mounting part 1 is sleeve-shaped and fitted onto the outside of the pipe fitting 300.
[0045] In another embodiment, the pipe fitting 300 is provided with an internal thread, the mounting part 1 is provided with an external thread, and the mounting part 1 is disposed inside the pipe fitting 300.
[0046] To accommodate threaded connections, the exhaust fixture is equipped with a handle 4. The handle 4 can be rotated by connecting it to an external mounting device or by hand, thereby allowing the exhaust fixture to be rotated to connect or disconnect the threaded connection from the pipe fitting 300.
[0047] Exemplarily, in one embodiment, such as Figure 7 and Figure 8 As shown, the handle part 4 includes two handle shafts 41, which are disposed on the mounting part 1 at the end away from the extension part 2. The two handle shafts 41 are symmetrically arranged about the exhaust channel 3. The operator holds the two handle shafts 41 to apply torque to the exhaust fixture, causing the exhaust fixture to rotate, which makes the operation relatively convenient. Figure 7 and Figure 8 The difference in appearance between the two exhaust fixtures is due to the different ways in which internal and external threads are set.
[0048] In another embodiment, the handle 4 is located at the end of the exhaust fixture away from the extension 2, such as... Figure 5 and Figure 6As shown, the exhaust channel 3 passes through the handle portion 4. Along the axial direction perpendicular to the exhaust channel 3, the cross-section of the handle portion 4 is rectangular, as shown in the figure. Figure 5 and Figure 6 As shown. Using an external mounting device with a rectangular sleeve, such as a rectangular sleeve electric screwdriver, the rectangular sleeve is fitted onto the handle part 4, causing the handle part 4 to rotate. Similarly, as... Figure 5 and Figure 6 The difference in appearance between the two exhaust fixtures is due to the different ways in which internal and external threads are set.
[0049] In one embodiment, the outer diameter of the extension 2 of the venting fixture is smaller than the inner diameter of the pipe connector 300, and a gap is formed between the outer wall of the extension 2 and the inner wall of the pipe connector 300; as the blow molding process proceeds, a portion of the plastic preform is extruded into the gap under the pressure of the gas and forms a coating layer 201 (see reference). Figure 2 The coating layer 201 adheres to the inner wall of the pipe joint 300, reducing the exposed area of the inner wall of the pipe joint 300. This reduces corrosion caused by contact between the inner wall of the pipe joint 300 and water after prolonged use, improving the corrosion resistance and service life of the pipe joint 300. It is understood that when assembling components such as the inlet pipe, the end face of the coating layer 201 can be tightly fitted to the end face of the inlet pipe, or the end face of the coating layer 201 can be tightly fitted to the sealing ring on the inlet pipe, improving sealing performance. In other words, by setting the coating layer 201, water penetration between the outer liner 100 and the plastic liner 200 can be effectively prevented.
[0050] In one embodiment, such as Figure 9 and Figure 10 As shown, at least one groove 304 is provided on the inner wall of the pipe joint 300, and the groove 304 communicates with the gap, such as... Figure 9 and Figure 10 As shown, the groove 304 extends axially around the pipe connector 300, and the covering layer 201 fills the groove 304, increasing the contact area between the groove and the pipe connector 300, improving the fit between the groove and the pipe connector 300, and reducing the risk of detachment between the pipe connector 300 and the covering layer 201. When multiple grooves 304 are provided on the pipe connector 300, the multiple grooves 304 are spaced apart along the axial direction of the pipe connector 300.
[0051] The lower end face of the pipe connector 300 has a stepped portion 303, which connects to a gap. The covering layer 201 can fill the stepped portion 303, forming an L-shaped structure. The covering layer 201 extending towards the stepped portion 303 increases the contact area between the pipe connector 300 and the covering layer 201, further reducing the risk of detachment between the pipe connector 300 and the covering layer 201. Moreover, the L-shaped structure of the covering layer 201 reduces the area of the lower end face of the pipe connector 300, thereby reducing the contact area between the pipe connector 300 and the water.
[0052] In one embodiment, the pipe joint 300 includes a sewage pipe joint 301 and a drain pipe joint 302, wherein the drain pipe joint 302 further includes a water inlet pipe joint and a water outlet pipe joint. The sewage pipe joint 301 has an external thread, while the water inlet pipe joint and the water outlet pipe joint have internal threads. The water inlet pipe joint and the water outlet pipe joint have the same structure, except that the internal water flow direction is opposite. The sewage pipe joint 301, the water inlet pipe joint, and the water outlet pipe joint are spaced apart along the axial direction of the outer liner 100 on the side wall of the outer liner 100. Correspondingly, the venting fixture includes a first venting fixture 5 for connecting the sewage pipe joint 301 (see reference). Figure 5 and Figure 7 ) and the second exhaust fixture 6 for connecting the drain pipe connector 302 (reference) Figure 6 and Figure 9 The second exhaust fixture 6 extends longer within the outer liner 100 than the first exhaust fixture 5 extends longer within the outer liner 100.
[0053] Along the axial direction of the outer liner 100, the drain pipe connector 302 is closer to the end opening 101. Therefore, the extension length of the second venting fixture 6 within the outer liner 100 is greater than the extension length of the first venting fixture 5 within the outer liner 100. For example... Figure 2 As shown, H1 is the extension length of the second venting fixture 6 within the outer shell 100, and H2 is the extension length of the first venting fixture 5 within the outer shell 100, where H1 > H2. For the plastic blank during the blow molding process, the blow molding gas is injected through the end opening 101, where the gas pressure is higher. During the blow molding process, when the plastic blank is about to contact the inner wall of the outer shell 100, the longer second venting fixture 6 contacts and penetrates the plastic blank earlier. At this time, the first venting fixture 5 can discharge the gas between the outer shell 100 and the plastic blank. The gas inside the plastic blank can be discharged through the second venting fixture 6, effectively avoiding the situation where the pressure is excessively high when the first venting fixture 5 and the second venting fixture 6 are covered simultaneously. This makes the blow molding gas pressure within the entire plastic blank more uniform, which is beneficial for forming a plastic shell 200 with uniform wall thickness.
[0054] Finally, this embodiment of the utility model also provides an inner liner, such as... Figure 11As shown, the inner liner includes an outer liner 100 and a plastic liner 200 that adheres to the inner wall of the outer liner 100. The outer liner 100 is made of a rigid material, and a pipe connector 300 is disposed on the side wall of the outer liner 100 and communicates with the interior of the outer liner 100. The plastic liner 200 is formed by blow molding of a plastic preform. During the blow molding process of the plastic liner 200, the inner liner is vented by the venting fixture in any of the above embodiments, eliminating the need for additional venting holes in the outer liner 100, thus maintaining the integrity of the outer liner 100 and reducing the risk of leakage. Moreover, compared to the inner diameter of the pipe connector 300, the inner diameter of the venting channel 3 is relatively small, which avoids the problem of excessively rapid venting. While venting some of the gas inside the plastic preform, it ensures that the remaining gas inside the plastic preform maintains sufficient blow molding pressure. Finally, the outer wall of the plastic liner 200 can better adhere to the inner wall of the outer liner 100, improving the structural strength of the inner liner.
[0055] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.
[0056] The specific embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. An exhaust tool for exhausting gas from an inner container, characterized by, The exhaust tool comprises a mounting portion (1) and an extension portion (2) arranged in sequence along the axial direction and connected with each other, the mounting portion (1) is used for detachably and sealingly connecting to the pipe joint (300) of the inner container, the extension portion (2) is used for extending into the inner container, the exhaust tool has an exhaust passage (3) penetrating through the mounting portion (1) and the extension portion (2), and the inner diameter of the exhaust passage (3) is smaller than the inner diameter of the pipe joint (300).
2. The exhaust tool of claim 1, wherein, The outer diameter of the extension portion (2) is smaller than the inner tube diameter of the pipe joint (300), when the exhaust tool is mounted to the inner container, the extension portion (2) penetrates through the pipe joint (300) and extends into the inner container, the extension portion (2) protrudes from the inner wall of the inner container, and a gap is formed between the outer side wall of the extension portion (2) and the inner tube wall of the pipe joint (300).
3. The exhaust tool of claim 1, wherein, One of the mounting portion (1) and the pipe joint (300) is provided with external threads, and the other is provided with internal threads, and the mounting portion (1) and the pipe joint (300) are threadedly connected.
4. The exhaust tool of claim 3, wherein, The pipe joint (300) is provided with external threads, the mounting portion (1) is provided with internal threads, the mounting portion (1) is sleeve-shaped and sleeved on the outside of the pipe joint (300); or, The pipe joint (300) is provided with internal threads, the mounting portion (1) is provided with external threads, and the mounting portion (1) is arranged in the pipe joint (300).
5. The exhaust tool of claim 3, wherein, The exhaust tool is provided with a handle portion (4), the handle portion (4) is used for rotating the exhaust tool to be threadedly connected to the pipe joint (300).
6. The exhaust tool of claim 5, wherein, The handle portion (4) comprises two handle shafts (41), the two handle shafts (41) are arranged on one end of the mounting portion (1) away from the extension portion (2), and the two handle shafts (41) are symmetrically arranged about the axial direction of the exhaust passage (3); or, The handle portion (4) is arranged at the terminal end of the exhaust tool away from the extension portion (2), the exhaust passage (3) penetrates through the handle portion (4), and the cross section of the handle portion (4) is rectangular along the direction perpendicular to the axial direction of the exhaust passage (3).
7. The exhaust tool of claim 2, wherein, At least one groove (304) is arranged on the inner tube wall of the pipe joint (300), the groove (304) is communicated with the gap, and the groove (304) is arranged to extend around the axial direction of the pipe joint (300); or, the lower end surface of the pipe joint (300) has a stepped portion (303), and the stepped portion (303) is communicated with the gap.
8. The exhaust tool of any one of claims 1-7, wherein, The inner diameter of the exhaust passage (3) is 4 mm.
9. The exhaust tool of any one of claims 1-7, wherein, The pipe joint (300) comprises a sewage pipe joint (301) and a water pipe joint (302), the exhaust tool comprises a first exhaust tool (5) for connecting the sewage pipe joint (301) and a second exhaust tool (6) for connecting the water pipe joint (302), and the extension length of the second exhaust tool (6) in the inner container is greater than the extension length of the first exhaust tool (5) in the inner container.
10. A liner characterized by, The application relates to a plastic bottle (100) comprising an outer bottle body (100) and a plastic bottle body (200) attached to the inner wall of the outer bottle body (100), wherein the outer bottle body (100) is made of rigid material, the side wall of the outer bottle body (100) is provided with a pipe joint (300) connected to the inside of the outer bottle body (100), and the plastic bottle body (200) is blow molded from a plastic bottle blank, wherein the inner bottle is exhausted by the exhaust tool according to any one of claims 1-6 during the blow molding of the plastic bottle body (200).