Overpressure valve adapter, bicycle inner tube valve system and bicycle inner tube inflation system

Abstract

Overpressure valve adapter (10) for a bicycle inner tube (100), with a valve body (11), preferably hollow cylindrical, a valve connection (12) connected to the valve body (11) for connecting the overpressure valve adapter (10) to a bicycle inner tube (100), a pump connection (14) connected to the valve body (11) for connecting the pressure relief valve adapter (10) to a pump (120), a gas channel (16) arranged inside the valve body (11) between the valve connection (12) and the pump connection (14) for filling the bicycle inner tube (100) with air, and a pressure relief valve (18) connected to the gas channel (16) to prevent overpressure in the bicycle inner tube (100) when a set pressure of the pressure relief valve (18) is reached.

Description

[0001] The invention relates to a pressure relief valve adapter, a bicycle inner tube valve system and a bicycle inner tube filling system.

[0002] In addition to the widely used butyl and latex bicycle inner tubes, bicycle inner tubes made of thermoplastic materials, especially thermoplastic polyurethane (TPU), are increasingly being used.

[0003] TPU bicycle inner tubes offer significant advantages due to their high strength, good puncture protection, especially puncture resistance, and low weight.

[0004] However, the installation of TPU bicycle inner tubes is problematic, as improper handling can lead to damage and failures.

[0005] A key aspect of installing TPU inner tubes is slightly pre-inflating them. This pre-inflation helps to shape the tube, making it easier to place it in the tire and preventing creases that could lead to uneven wear and potential damage. Pre-inflation also prevents the tube from being pinched and damaged during installation.

[0006] However, it is crucial to adhere to the correct pressure limit when pre-inflating. Exceeding the pressure limit can lead to bubbles forming in the hose material. These bubbles generally cause permanent damage to the hose, rendering it unusable, especially if it is expensive, and necessitating replacement, which incurs additional costs. The pressure limit is generally between 0.3 and 0.5 bar.

[0007] To minimize these problems, extensive warnings are placed, for example, on the TPU hoses, the valve, in the operating instructions, and on the packaging. These warnings are intended to advise users to observe the pressure limits and to use suitable pumps with precise pressure gauges. Despite these measures, the risk remains that the warnings will be ignored or misunderstood.

[0008] Unfortunately, TPU hoses frequently fail because, in particular, private individuals either don't read or don't understand the instructions. Many users also lack precise pressure monitoring devices and rely on estimates or inaccurate pumps. This often leads to overpressure and consequently, hose damage. When out in the field, users often only have access to simple pumps without a pressure gauge, which doesn't allow for precise pressure control, increasing the risk of improper inflation and thus damage to the TPU hose.

[0009] The object of the invention is to improve the assembly of bicycle inner tubes, in particular bicycle inner tubes made of thermoplastic materials.

[0010] The problem is solved according to the invention by a pressure relief valve adapter according to claim 1, a bicycle inner tube valve system according to claim 17 and a bicycle inner tube filling system according to claim 18.

[0011] The pressure relief valve adapter according to the invention for a bicycle inner tube is preferably made of thermoplastic material, particularly TPU. The pressure relief valve adapter has a preferably hollow, and more preferably hollow cylindrical, valve body. The valve body is made of or consists of polypropylene. The hollow cylindrical shape of the valve body has, in particular, a circular, oval, or rectangular, e.g., square, base. The hollow cylindrical shape can preferably have several cylindrical stages, so that the hollow cylindrical shape corresponds approximately to the shape of a hollow stepped shaft. In particular, the valve body thus has a stepped hollow cylindrical shape. A valve connection for connecting the pressure relief valve adapter to a bicycle inner tube is connected to the valve body, preferably integrally, also to be described as a single piece.The valve connection is preferably designed for, and in particular detachable, connection to a bicycle inner tube valve. Specifically, the valve connection is designed to internally accommodate the bicycle inner tube valve, so that the bicycle inner tube valve can be received inside the valve connection. Furthermore, a pump connection for connecting the pressure relief valve adapter to a pump, e.g., an air pump, is integrated with the valve body, preferably as a single piece. The pump connection is preferably designed for, and in particular detachable, connection to an air pump, and especially preferably to a valve receptacle of the pump. Specifically, the pump connection is designed for an external, preferably enclosing, connection with the valve receptacle, so that the pump connection can be enclosed by the valve receptacle.Preferably, the valve connection is arranged on a first side, more preferably a first base, of the valve body. The pump connection is preferably arranged on a second side, particularly opposite the first side, more preferably a second base, of the valve body. The valve body corresponds in particular to an adapter for a preferably gas-carrying connection between the bicycle inner tube valve and the pump. The pressure relief valve adapter also has a gas channel arranged within the valve body between the valve connection and the pump connection for filling the bicycle inner tube with air. Preferably, the pressure relief valve adapter is designed to inflate a bicycle inner tube connected to the valve connection by means of air pressure flowing from a pump connected to the pump connection and through the gas channel.The gas channel extends, in particular, through the valve body, with the gas channel preferably corresponding to the cavity of the valve body. Furthermore, the pressure relief valve adapter has a pressure relief valve connected to the gas channel to prevent overpressure in the bicycle inner tube when a set pressure of the pressure relief valve is reached. In particular, the pressure relief valve is designed to prevent overpressure during inflation, preferably pre-inflation, of the bicycle inner tube. The pressure relief valve is, in particular, a safety valve. The pressure relief valve is, in particular, arranged on an outer surface of the valve body and / or within the valve body, preferably in a wall of the valve body. It is particularly possible that the pressure relief valve is at least partially integral with the valve body.A particular advantage of the pressure relief valve adapter according to the invention is that the assembly of bicycle inner tubes, preferably made of thermoplastic materials, is improved, so that damage to the inner tubes can be prevented, and in particular, exceeding the pressure limit during pre-inflation can be prevented.

[0012] It is preferred that the set pressure of the pressure relief valve is max. 1 bar, preferably max. 0.5 bar, and particularly preferably 0.5 bar, 0.4 bar, or 0.3 bar. In other words, the set pressure is, in particular, the opening pressure of the pressure relief valve.

[0013] It is preferred that the pressure relief valve, when the set pressure is reached, discharges the pressure from the gas channel to the atmosphere.

[0014] It is preferred that the pressure relief valve emits an acoustic signal, in particular a whistle, when the set pressure is reached.

[0015] It is preferred that the pressure relief valve has a whistle, in particular one with a cutting edge, for generating the acoustic signal.

[0016] It is preferred that the valve connection is designed for a positive and / or force-fit connection with the bicycle inner tube, particularly a detachable one. Additionally or alternatively, it is preferred that the pump connection is designed for a positive and / or force-fit connection with the pump, particularly a detachable one. The valve connection is specifically designed for a connectable and detachable connection with the bicycle inner tube, and / or the pump connection for a connectable and detachable connection with the pump.

[0017] It is preferred that the valve connection has a receptacle, in particular a clamping and / or sealing one, for connection to the bicycle inner tube, preferably the bicycle inner tube valve. The receptacle is preferably designed for a precise fit of the bicycle inner tube, in particular by means of an interference fit. The receptacle can be, for example, a connector, in particular a clamping one, e.g. a plug, or a thread, in particular an internal thread.

[0018] It is preferred that the valve connection, in particular the valve connection receptacle, has a seal for an airtight connection with the bicycle inner tube, especially the bicycle inner tube valve. Preferably, the receptacle corresponds to the seal. The seal comprises, for example, TPE and / or rubber, and preferably consists of these materials. In particular, the seal has a circular hollow cylindrical shape for the internal reception of the bicycle inner tube valve. Preferably, the seal, in particular the shape of the bicycle inner tube valve receptacle, corresponds essentially to the seal of a pump valve receptacle. It is possible, for example, that the seal is formed integrally with the pressure relief valve, with the seal and pressure relief valve preferably being jointly formed. It is possible, for example, that the seal and the pressure relief valve are formed integrally and / or made of the same material.The seal could be, in particular, an O-ring.

[0019] It is preferred that the pump connection has a nozzle for attaching the pump, preferably a valve receptacle of the pump, and most preferably a valve receptacle of the pump head. The nozzle is particularly integral with the valve body. The nozzle is particularly cylindrical, preferably with a circular, oval, or rectangular, e.g., square, base. In particular, the nozzle has an outer diameter that essentially corresponds to the inner diameter of the valve receptacle.

[0020] It is preferred that the nozzle has a non-slip surface, in particular a structure such as an external thread and / or grooves. The structure is designed to prevent slippage for a pump, preferably a valve housing of the pump.

[0021] It is preferred that the valve body, in particular the pressure relief valve adapter, has a reducing shape for connecting two different diameters. Preferably, the valve body, in particular the pressure relief valve adapter, corresponds to a reducing piece. Preferably, the reducing shape has two cylindrical sections. In other words, the reducing shape corresponds in particular to a stepped hollow cylinder shape.

[0022] It is preferred that the reducer shape has a first diameter for connection to the pump and a second diameter, different from the first, for connection to the bicycle inner tube. The first diameter is preferably smaller than the second diameter. Preferably, the reducer shape has a first cylindrical section with the first diameter and a second cylindrical section with the second diameter. The first cylindrical section has, in particular, the valve connection, preferably at least the receptacle, and it is preferred that the first cylindrical section corresponds to the valve connection. In particular, the second cylindrical section corresponds to the nozzle. The second cylindrical section has, in particular, the pump connection, and it is preferred that the second cylindrical section corresponds to the pump connection. The first and / or the second cylindrical section has, in particular, a circular, oval, or rectangular shape, e.g.,The cylinder has a square base. It is preferred that the outer surfaces of the first and second cylinder sections are parallel to each other. The first and second cylinder sections are connected, in particular, by a step, preferably a step extending at right angles to the first and second cylinder sections. The cylinder sections, in particular, represent the steps of the stepped hollow cylinder form.

[0023] It is preferred that the pressure relief valve has a diaphragm valve, in particular a slotted one, and / or a flap valve, preferably consisting of these.

[0024] It is preferred that the pressure relief valve has a membrane, preferably made of thermoplastic elastomer (TPE) and / or rubber. The membrane is preferably slotted and / or at least partially hinged. The membrane is, in particular, a diaphragm valve.

[0025] It is preferred that the valve body has an opening that is selectively closed by the pressure relief valve. Preferably, the opening extends from the atmosphere, particularly at right angles, through the valve body, e.g., a surface of the valve body, into the gas channel. The pressure relief valve is particularly located in and / or upstream of the opening. The opening is, for example, a bore, particularly through the valve body. In addition to or as an alternative to the bore, it is preferably possible that the valve body has an opening, which is a slot. The slot extends, in particular, partially or completely along the longitudinal direction of the valve body. Thus, it is possible that the valve body is partially or completely slotted in the longitudinal direction. Furthermore, it is particularly possible that the step between the first and second cylinder sections has the opening.

[0026] It is preferred that the opening has a slotted diaphragm, preferably made of TPE, as a pressure relief valve. The diaphragm is, for example, arranged inside and / or in front of the opening.

[0027] It is preferred that the opening is closed as a pressure relief valve with a removable sealing ring, e.g. a rubber ring, arranged around the valve body. The sealing ring is preferably clamped around the valve body.

[0028] It is preferred that the pressure relief valve adapter is a multi-component injection-molded part, in particular a two-component injection-molded part. The valve body is one component, and the pressure relief valve, and preferably the valve connection seal, is another component. Preferably, the valve body is made from the first component, and the pressure relief valve, and preferably the valve connection seal, is made from the other component. The first component is made of polypropylene. The second component is preferably made of TPE and / or rubber.

[0029] The bicycle inner tube valve system according to the invention comprises a bicycle inner tube having a valve. The bicycle inner tube is preferably made of thermoplastic material, in particular a TPU bicycle inner tube. Furthermore, the bicycle inner tube valve system comprises a pressure relief valve adapter according to the invention, which is detachably connected, e.g., removable or screwable, to the valve. The valve is in particular connected to the valve connection.

[0030] It is preferred that the hose valve is, in particular completely, encased. Preferably, the hose valve is encased with thermoplastic material, in particular TPU.

[0031] It is preferred that the bicycle inner tube valve system comprises packaging, in particular a cardboard box, wherein the bicycle inner tube, together with the pressure relief valve adapter connected to the valve of the bicycle inner tube, is packed in the packaging. It is more preferred that the bicycle inner tube is packed folded and / or rolled up in the packaging, wherein the folded and / or rolled-up bicycle inner tube is particularly secured with a rubber band.

[0032] The bicycle inner tube inflation system according to the invention comprises a bicycle inner tube valve system according to the invention and a pump that is detachably connected, e.g., removable or screwable, to the overpressure valve adapter. The pump is, in particular, connected to the pump connection.

[0033] It is preferred that one or more articles according to the invention, i.e. the overpressure valve adapter, the bicycle inner tube filling system and / or the bicycle inner tube valve system, each have one or more features of the other articles according to the invention.

[0034] The invention will now be explained in more detail with reference to preferred embodiments and the accompanying drawings.

[0035] They show: Fig. 1 a schematic sectional view of an embodiment of an overpressure valve adapter according to the invention, Fig. 2-4 schematic sectional views of further embodiments of the pressure relief valve adapter according to the invention, Fig. 5 a schematic sectional view of an embodiment of a bicycle inner tube filling system according to the invention with an embodiment of a bicycle inner tube valve system according to the invention with the overpressure valve adapter made of Fig. 1, and Fig. 6-7 Schematic sectional views of further embodiments of the pressure relief valve adapter according to the invention.

[0036] Similar or identical components or elements are identified in the figures using the same reference numerals. For the sake of clarity, elements that have already been identified are preferably not marked with reference numerals in all figures.

[0037] Fig. Figure 1 shows an embodiment of a pressure relief valve adapter 10 according to the invention.

[0038] The pressure relief valve adapter 10 has a hollow cylindrical valve body 11 which has an internal gas channel 16 for guiding air, in particular pump air. The valve body 11 is made of polypropylene, in particular, and consists of polypropylene.

[0039] On one side of the valve body 11 there is a valve connection 12 for connecting the pressure relief valve adapter 10 to a bicycle inner tube 100 (see figure). Fig. 5) carried out. The valve connection 12 is shown to have a seal 20 in the form of a sealing ring arranged inside the valve body 11. A bicycle inner tube valve 102 of a bicycle inner tube 100 can thus be inserted into the valve connection 12 and an airtight connection from the gas channel 16 to the bicycle inner tube valve 102 can be established via the seal 20 arranged between the bicycle inner tube valve 102 and the valve body 11 (see Figure 5). Fig. 5) The seal 20 comprises, in particular, TPE and / or rubber, and preferably consists of these materials.

[0040] On the side of the valve body 11 opposite the valve connection 12, the valve body 11 forms a pump connection 14 for connecting the pressure relief valve adapter 10 to a pump 120 (see figure). Fig. 5). To form the pump connection 14, the valve body 11, as shown, has a structure 24, for example, with grooves and / or an external thread. The pump connection 14, which corresponds to the outer surface of the valve body 11 having the structure 24, can in particular be connected, preferably attached, to the valve receptacle 123 of a pump head 122 of a pump 120 (see Figure 5). Fig. 5). The structure 24 is designed in particular to prevent slippage for the valve receptacle 123.

[0041] The valve body 11 has an opening 25, for example, designed as a bore. A pressure relief valve 18 (shown schematically) is arranged in the opening, which releases excess pressure to the outside when there is overpressure in the gas channel 16 (indicated by arrow 22). Preferably, the pressure relief valve has a set pressure of max. 1 bar, more preferably 0.5 bar, and particularly preferably 0.3 bar.

[0042] Fig. Figure 2 shows another embodiment of a pressure relief valve adapter 10. The pressure relief valve adapter 10 is made of Fig. 2 is based on the design of the pressure relief valve adapter 10 from Fig. 1.

[0043] In contrast to the version from Fig. The overpressure valve adapter 10 shows 1 Fig. 2. A pressure relief valve 18 in the form of a slotted elastomer 17. The slotted elastomer 17 is, for example, an elastomer plug arranged in the opening 25. The elastomer 17 selectively closes the opening 25, whereby, in the presence of overpressure in the gas channel 16, the slot 19 opens so that the overpressure escapes to the outside (see arrow 22). The elastomer 17 with slot 19 thus forms, in particular, a diaphragm valve. In particular, the elastomer 17 is formed integrally with the seal 20. It is particularly preferred that the seal 20 and the elastomer 17 together correspond to a component from a multi-component injection mold, and it is particularly preferred that the valve body 11 corresponds to a further component of the multi-component injection mold, so that the seal 20 and the elastomer 17 as well as the valve body 11 are preferably manufactured together by means of multi-component injection molding.Preferably, the pressure relief valve adapter 10 is a multi-component injection-molded component.

[0044] Fig. Figure 3 shows another embodiment of a pressure relief valve adapter 10. The pressure relief valve adapter 10 is made of Fig. 3 is based on the design of the pressure relief valve adapter 10 from Fig. 1.

[0045] In contrast to the version from Fig. The overpressure valve adapter 10 shows 1 Fig. 3. A pressure relief valve 18 in the form of a sealing ring 21, preferably in the form of a rubber ring, located on the outside of the valve body 11 and in front of the opening 25. When there is overpressure in the gas channel 16, it is preferably implemented that the sealing ring 21 yields outwards, e.g., folds away, so that the overpressure is released to the outside through the channel. The pressure relief valve 18 is made of Fig. 3. This is therefore, in particular, a hinged valve.

[0046] Fig. Figure 4 shows another embodiment of a pressure relief valve adapter 10. The pressure relief valve adapter 10 is made of Fig. 4 essentially corresponds to the design of the pressure relief valve adapter 10 from Fig. 3.

[0047] In contrast to the version from Fig. 3 refers to the opening 25 in the valve body 11 in Fig. 4 around a longitudinal slot. In front of the longitudinal slot, on the outside of the valve body 11, there is a (compared to the design of the Fig. A sealing ring 21 (3 wider) is arranged to form the pressure relief valve 18. The longitudinal slot is shown to extend partially through the valve body 11 and is open on one side, in the area of ​​the valve connection 12. Alternatively, a design is also possible in which the longitudinal slot extends completely through the valve body 11, is open on the other side, or runs centrally through the valve body, particularly without being open on the sides.

[0048] Fig. Figure 5 shows an embodiment of a bicycle inner tube filling system 300 according to the invention, with an embodiment of a bicycle inner tube valve system 200 according to the invention and a (partially shown) pump 120, in particular a bicycle pump.

[0049] The bicycle inner tube valve system 200 features the overpressure valve adapter 10. Fig. 1 and a bicycle inner tube 100 connected to the pressure relief valve adapter 10. For the connection between the bicycle inner tube 100 and the pressure relief valve adapter 10, a bicycle inner tube valve 102, which is connected to the casing 106 of the bicycle inner tube 100, is connected to the valve connection 12, with the bicycle inner tube valve 102 being inserted into the seal 20, thus creating a gas-tight connection. The bicycle inner tube valve 102 has a check valve 106. The bicycle inner tube 100 is specifically a TPU tube.

[0050] The pump 120 is connected to the pump connection 14 of the pressure relief valve adapter 10. The valve receptacle 123 of a pump head 122 of the pump 120 is sealed onto the pump connection 14 via a seal 124 of the valve receptacle 123.

[0051] The bicycle inner tube 100 can be inflated, or in particular pre-inflated, via the gas channel 16 of the pressure relief valve adapter using the pump 120 (indicated by arrow 124, which shows the gas flow, preferably air flow, during pumping). If there is overpressure in the gas channel 16, and thus in particular if the air pressure during inflation exceeds the set pressure of the pressure relief valve 18, the overpressure is released to the atmosphere via the pressure relief valve 18. The set pressure corresponds in particular to a maximum pre-inflation pressure of the bicycle inner tube 100. Therefore, over-inflation of the bicycle inner tube 100, especially during pre-inflation, can be prevented via the pressure relief valve adapter 10.

[0052] Fig. Figure 6 shows another embodiment of a pressure relief valve adapter 10. The pressure relief valve adapter 10 is made of Fig. 6 is based on the design of the pressure relief valve adapter 10 from Fig. 1.

[0053] In contrast to the version from Fig. The overpressure valve adapter 10 shows 1 Fig. Figure 6 shows a valve body 11 with a reducer shape comprising two cylinder sections 13, 15, which can also be described as a stepped hollow cylinder shape. The first cylinder section 13 has the pump connection 14 and consists in particular of this. The pump connection 14 is in particular a nozzle. The second cylinder section 15 has the valve connection 12 and consists in particular of this. The first cylinder section 13 has a smaller diameter than the second cylinder section 15. The different diameters of the cylinder sections 13, 15 allow, for example, the adjustment of the pressure relief valve adapter 10 for connection with bicycle inner tube valves 100 of different sizes and / or valve fittings 123 of pumps. The first and second cylinder sections 13, 15 are connected to each other via a shoulder 17.

[0054] The pressure relief valve 18 is provided in an opening 25 in the first cylinder section 13.

[0055] Fig. Figure 7 shows another embodiment of a pressure relief valve adapter 10. The pressure relief valve adapter 10 is made of Fig. 7 essentially corresponds to the design of the pressure relief valve adapter 10 from Fig. 6.

[0056] In contrast to the version from Fig. 6 the opening 25 is provided in paragraph 17 and the opening is selectively closed with an external sealing ring 21 to form the overpressure valve 18.

Claims

[1] Overpressure valve adapter (10) for a bicycle inner tube (100), with a valve body (11), preferably hollow cylindrical, a valve connection (12) connected to the valve body (11) for connecting the overpressure valve adapter (10) to a bicycle inner tube (100), a pump connection (14) connected to the valve body (11) for connecting the pressure relief valve adapter (10) to a pump (120), a gas channel (16) arranged inside the valve body (11) between the valve connection (12) and the pump connection (14) for filling the bicycle inner tube (100) with air, and a pressure relief valve (18) connected to the gas channel (16) to prevent overpressure in the bicycle inner tube (100) when a set pressure of the pressure relief valve (18) is reached. [2] Overpressure valve adapter (10) according to claim 1, characterized by, that the set pressure of the pressure relief valve (18) is max. 1 bar, preferably max. 0.5 bar and particularly preferably 0.5 bar or 0.4 bar or 0.3 bar. [3] Overpressure valve adapter (10) according to claim 1 or 2, characterized by , that the pressure relief valve (18) discharges the pressure from the gas channel (16) to the atmosphere when the set pressure is reached. [4] Overpressure valve adapter (10) according to one of claims 1-3, characterized by , that the pressure relief valve (18) emits an acoustic signal, in particular a whistle, when the set pressure is reached. [5] Overpressure valve adapter (10) according to claim 4, characterized by , that the overpressure valve (18) has a whistle, in particular having a cutting edge, for generating the acoustic signal. [6] Overpressure valve adapter (10) according to any one of claims 1-5, characterized by , that - the valve connection (12) is designed for a positive and / or force-fit connection with the bicycle inner tube (100); and / or - the pump connection (14) is designed for a positive and / or force-fit connection with the pump (120). [7] Overpressure valve adapter (10) according to one of claims 1-6, characterized by , that the valve connection (12) has a receptacle for connection, in particular clamping, with the bicycle inner tube (100). [8] Overpressure valve adapter (10) according to one of claims 1-7, characterized by , that the valve connection (12) has a seal (20) for an airtight connection with the bicycle inner tube (100). [9] Overpressure valve adapter (10) according to any one of claims 1-8, characterized by , that the pump connection (14) has a nozzle for attaching the pump (120). [10] Overpressure valve adapter (10) according to any one of claims 1-9, characterized by, that the valve body (11), in particular the pressure relief valve adapter (10), has a reducing shape for connection with two different diameters. [11] Overpressure valve adapter (10) according to claim 10, characterized by , that the reducer shape has a first diameter for connection with the pump (120) and a second diameter, different from the first, for connection with the bicycle inner tube (100). [12] Overpressure valve adapter (10) according to any one of claims 1-11, characterized by , that the pressure relief valve (18) has a diaphragm valve, in particular a slotted one, and / or a flap valve. [13] Overpressure valve adapter (10) according to any one of claims 1-12, characterized by , that the valve body (11) has an opening (25) that is selectively closed by the overpressure valve (18). [14] Overpressure valve adapter (10) according to claim 13, characterized by, that the opening (25) has a slotted membrane, preferably made of TPE, as a pressure relief valve (18). [15] Overpressure valve adapter (10) according to claim 13 or 14, characterized by , that the opening (25) is closed by a removable sealing ring arranged around the valve body (11) as a pressure relief valve (18). [16] Overpressure valve adapter (10) according to any one of claims 1-15, characterized by , that the pressure relief valve adapter (10) is a multi-component injection-molded component, wherein the valve body (11) is one component and the pressure relief valve (18) and preferably the seal (20) of the valve connection (12) is another component. [17] Bicycle inner tube valve system (200) with a bicycle inner tube (100) having a hose valve, in particular a TPU bicycle inner tube, and a pressure relief valve adapter (10) detachably connected to the hose valve according to one of claims 1-16, [18] Bicycle inner tube filling system, comprising a bicycle inner tube valve system (200) according to claim 17, and a pump (120) connected to the overpressure valve adapter (10).

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