Metal silencing hose

Abstract

The utility model relates to a hose in a ventilation system, in particular to a metal silencing hose which comprises an outer sleeve and a silencing inner pipe, the silencing inner pipe is a metal corrugated hose with micro-perforated holes, a polyester isolating layer is wrapped outside the silencing inner pipe, the outer sleeve wraps the silencing inner pipe, and the inner wall of the outer sleeve and the outer wall of the silencing inner pipe are arranged at intervals. The silencing effect of the silencing inner pipe can be improved by forming the micro-penetrating holes in the silencing inner pipe, the pipe wall supporting performance of the silencing inner pipe and the use stability of the silencing inner pipe can be improved by adopting the metal corrugated hoses, and the silencing effect of the silencing inner pipe can be improved. And therefore, when the solid impurities collide with the silencing inner pipe, the silencing inner pipe cannot be damaged, and the use stability of the silencing inner pipe is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a hose in ventilation system, in particular to a metal muffling hose. BACKGROUND

[0002] Ventilation is a kind of building environment control technology by means of dilution or ventilation removal, etc., to control the spread and harm of air pollutants, to realize the indoor and outdoor air environment quality guarantee, and ventilation system is widely used in such as shopping mall, residence, chemical plant, civil air defense engineering, large public facilities and commercial complex central air conditioning, and the return air and fresh air system, for the muffling hose used in ventilation system, the inner tube of aluminium foil material can meet the use demand, but when the muffling hose is used in special working environment, the inner tube of traditional aluminium foil material will be damaged by the solid impurities flowing in pipeline in the use process, and then the sound attenuation effect of muffling hose is influenced, and the flow of air is influenced, so it is needed to have a muffling hose with higher strength, which can meet the sound attenuation demand, and also can avoid the damage of solid impurities to muffling hose, thereby influencing the use of muffling hose, therefore, a metal muffling hose is needed. SUMMARY

[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a metal muffling hose for solving the problem of improving the use strength of the muffling hose in the prior art.

[0004] To achieve the above-mentioned purpose and other related purposes, the utility model provides the following technical scheme:

[0005] A metal muffling hose, comprising:

[0006] A sleeve and a muffling inner tube, the muffling inner tube is a metal corrugated hose with micro-perforation, the muffling inner tube is wrapped with a polyester isolation layer, the sleeve wraps the muffling inner tube, and a sound-absorbing layer is arranged in the interval space between the inner wall of the sleeve and the outer wall of the muffling inner tube, the sleeve is a metal corrugated hose, and socket-type interfaces are arranged at both ends of the sleeve.

[0007] The above-mentioned technical scheme is realized, the micro-perforation arranged on the muffling inner tube can improve the sound attenuation effect of the muffling inner tube, the metal corrugated hose is used, the pipe wall supportability of the muffling inner tube and the use stability of the muffling inner tube can be improved, and then the muffling inner tube is not damaged when solid impurities collide with the muffling inner tube, and the use stability of the muffling inner tube is ensured.

[0008] The interval space between the sleeve and the muffling inner tube is arranged, the sound-absorbing material can be filled in the interval space, the sound attenuation effect is improved in cooperation with the micro-perforation on the muffling hose, and the sleeve is provided with socket-type interfaces at both ends, the convenience when the sleeve is connected with a pipeline is improved.

[0009] In an embodiment of the utility model, the sound attenuation inner tube is galvanized iron sheet, aluminum alloy or stainless steel, the sound attenuation inner tube is around the length direction of outer cover, and the bottom edge of last layer sound attenuation inner tube covers the top edge of next layer sound attenuation inner tube, the adjacent sound attenuation inner tube's corrugation overlaps each other.

[0010] The above technical solution is realized, the sound attenuation inner tube made of galvanized iron sheet, aluminum alloy or stainless steel can improve sealing, corrosion resistance, sound insulation performance, and can improve the use stability of the sound attenuation inner tube, so that the sound attenuation inner tube can have better strength to meet the use needs, the bottom edge of last layer sound attenuation inner tube covers the top edge of next layer sound attenuation inner tube, which can improve the sealing reliability of the sound attenuation inner tube, thereby improving the sound attenuation effect.

[0011] In an embodiment of the utility model, a winding interface is arranged on the top edge of the sound attenuation inner tube, and a limiting buckle is arranged on the bottom edge of the sound attenuation inner tube, and the limiting buckle is embedded in the winding buckle at the top edge and the bottom edge of the adjacent sound attenuation inner tube.

[0012] The above technical solution is realized, the sound attenuation inner tube made of galvanized iron sheet, aluminum alloy or stainless steel can improve sealing, corrosion resistance, sound insulation performance, and can improve the use stability of the sound attenuation inner tube, so that the sound attenuation inner tube can have better strength to meet the use needs, the bottom edge of last layer sound attenuation inner tube covers the top edge of next layer sound attenuation inner tube, which can improve the sealing reliability of the sound attenuation inner tube, thereby improving the sound attenuation effect.

[0013] In an embodiment of the utility model, the sound absorption layer is glass wool or rubber sponge.

[0014] The above technical solution is realized, while ensuring the control of use cost, the sound attenuation effect of the sound absorption layer is improved, and the sound attenuation effect of the overall metal sound attenuation hose is improved.

[0015] In an embodiment of the utility model, the winding mode of the outer cover is consistent with the winding mode of the sound attenuation inner tube, and the thickness size of the outer cover is greater than the thickness size of the sound attenuation inner tube.

[0016] The above technical solution is realized, in order to improve the support stability of the outer cover and protect the sound attenuation inner tube, the thickness size of the outer cover is greater than the thickness size of the sound attenuation inner tube, and the winding mode of the outer cover is consistent with the winding mode of the sound attenuation inner tube, which can further strengthen the sound attenuation effect.

[0017] In an embodiment of the utility model, a socket base is arranged between the two ends of the outer cover and the socket interface, and the socket base wraps the outer wall of the outer cover.

[0018] The above technical solution is realized, by wrapping the outer wall of the outer cover with the socket base, the connection stability between the outer cover and the socket base can be improved.

[0019] In an embodiment of the utility model, the round interface is inserted into the inside of the socket base at one end and wraps the outer sleeve at the other end, and the two ends of the round interface are connected with the socket base and the outer sleeve through rivets respectively.

[0020] The above technical solution is realized, in order to improve the connection convenience between the socket base and the outer sleeve, a round interface is arranged between the socket base and the outer sleeve, one end of the round interface is inserted into the inside of the socket base and the other end wraps the outer sleeve, which can provide convenience for the connection between the outer sleeve and the socket base, and the two ends of the round interface are connected with the socket base and the outer sleeve through rivets respectively, which can improve the connection stability between the socket base and the outer sleeve.

[0021] In an embodiment of the utility model, a rubber sealing sleeve is arranged on the outer wall of the inner round interface of the socket base.

[0022] The above technical solution is realized, the rubber sealing sleeve arranged on the outer wall of the inner round interface of the socket base can improve the sealing reliability of the socket base and avoid air leakage of the socket base.

[0023] In an embodiment of the utility model, an interface limiting protrusion is arranged on the round interface between the socket base and the outer sleeve, and the interface limiting protrusion protrudes from the outer wall of the round interface.

[0024] The above technical solution is realized, the interface limiting protrusion can limit the connection position of the two ends of the round interface and improve the stability of the round interface in use.

[0025] As described above, the utility model discloses a metal muffling hose, which has the following beneficial effects:

[0026] 1. By arranging micro-perforations on the muffling inner tube, the muffling effect of the muffling inner tube can be improved, and by using a metal corrugated hose, the pipe wall supportability of the muffling inner tube and the use stability of the muffling inner tube can be improved, so that the muffling inner tube is not damaged when solid impurities collide with the muffling inner tube, and the use stability of the muffling inner tube is ensured.

[0027] 2. The outer sleeve and the muffling inner tube are arranged at intervals, which can facilitate filling of sound-absorbing material in the interval space, thereby improving the muffling effect in cooperation with the micro-perforations on the muffling hose, and the socket type interface is arranged at the two ends of the outer sleeve, which can improve the convenience of connecting the outer sleeve to a pipeline. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 The structure of the metal muffling hose disclosed in the embodiment of the utility model is shown.

[0029] Figure 2 A structure diagram of a sound-absorbing inner tube of a metal sound-absorbing hose disclosed in an embodiment of the utility model is shown.

[0030] Figure 3 A structure diagram of a sound-absorbing inner tube of a metal sound-absorbing hose disclosed in an embodiment of the utility model is shown. Figure 2 A partial enlarged view of reference sign A in the figure.

[0031] Figure 4 A structure diagram of a round interface of a metal sound-absorbing hose disclosed in an embodiment of the utility model is shown.

[0032] Figure 5 A structure diagram of a sound-absorbing layer of a metal sound-absorbing hose disclosed in an embodiment of the utility model is shown.

[0033] Element number explanation

[0034] 1, outer cover; 2, sound-absorbing inner tube; 3, socket type interface; 4, sound-absorbing layer; 5, socket base; 6, round interface; 7, rubber sealing sleeve; 8, interface limiting protrusion; 9, around interface; 10, limiting buckle. Specific implementation mode

[0035] The implementation mode of the utility model is explained by specific embodiments below, and other advantages and effects of the utility model can be easily understood by those skilled in the art from the content disclosed in the specification. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0036] Please refer to Figures 1 to 5 The utility model provides a kind of metal sound-absorbing hose, metal sound-absorbing hose, including outer cover 1 and sound-absorbing inner tube 2, sound-absorbing inner tube 2 is the metal corrugated hose with micro-perforation, sound-absorbing inner tube 2 is wrapped with polyester isolation layer, outer cover 1 is wrapped sound-absorbing inner tube 2, and outer cover 1 inner wall and sound-absorbing inner tube 2 outer wall are spaced apart, and sound-absorbing layer 4 is arranged in interval space, and outer cover 1 is metal corrugated hose, and socket type interface 3 is configured at both ends of outer cover 1.

[0037] By being provided with micro-perforation on sound-absorbing inner tube 2, the sound-absorbing effect of sound-absorbing inner tube 2 can be improved, and metal corrugated hose is used, the pipe wall supportability of sound-absorbing inner tube 2 and the use stability of sound-absorbing inner tube 2 can be improved, so that when solid impurities collide with sound-absorbing inner tube 2, sound-absorbing inner tube 2 will not be damaged, and the use stability of sound-absorbing inner tube 2 is guaranteed.

[0038] The interval between outer cover 1 and sound-absorbing inner tube 2 can be conveniently filled with sound-absorbing material in the interval space, thereby cooperating with the micro-perforation on the sound-absorbing hose to improve the sound-absorbing effect, and the socket type interface 3 is configured at both ends of outer cover 1, which can improve the convenience when outer cover 1 is connected to the pipeline.

[0039] The muffling inner tube 2 is made of galvanized iron sheet, aluminum alloy or stainless steel, and is wound along the length direction of the outer sleeve 1. The bottom edge of the upper layer of the muffling inner tube 2 covers the top edge of the lower layer of the muffling inner tube 2, and the corrugations of the adjacent muffling inner tubes 2 overlap each other. The muffling inner tube 2 made of galvanized iron sheet, aluminum alloy or stainless steel can improve the sealing, corrosion resistance, sound insulation performance and use stability of the muffling inner tube 2, and has better strength to meet the use requirements. Covering the bottom edge of the upper layer of the muffling inner tube 2 with the top edge of the lower layer of the muffling inner tube 2 can improve the sealing reliability of the muffling inner tube 2, thereby improving the muffling effect.

[0040] A winding port 9 is arranged at the top edge of the muffling inner tube 2, and a limiting buckle 10 is arranged at the bottom edge of the muffling inner tube 2. The limiting buckle 10 is embedded in the winding buckle at the top edge and the bottom edge of the adjacent muffling inner tube 2. The winding port 9 at the top edge of the muffling inner tube 2 cooperates with the limiting buckle 10 at the bottom edge of the muffling inner tube 2. When the adjacent muffling inner tubes 2 are wound, the limiting buckle 10 is embedded in the winding buckle. This can improve the stability of the connection between the adjacent muffling inner tubes 2 and further improve the muffling effect.

[0041] The sound absorbing layer is glass wool or rubber sponge. The sound absorbing layer can improve the muffling effect of the overall metal muffling hose while ensuring the control of the use cost.

[0042] The winding method of the outer sleeve 1 is consistent with the winding method of the muffling inner tube 2, and the thickness dimension of the outer sleeve 1 is greater than the thickness dimension of the muffling inner tube 2. In order to improve the support stability of the outer sleeve 1 and protect the muffling inner tube 2, the thickness dimension of the outer sleeve 1 is greater than the thickness dimension of the muffling inner tube 2, and the winding method of the outer sleeve 1 is consistent with the winding method of the muffling inner tube 2, which can further strengthen the muffling effect.

[0043] A socket base 5 is arranged between the two ends of the outer sleeve 1 and the socket type interface 3. The socket base 5 wraps the outer wall of the outer sleeve 1. By wrapping the outer wall of the outer sleeve 1 with the socket base 5, the connection stability between the outer sleeve 1 and the socket base 5 can be improved.

[0044] A round interface 6 is arranged between the socket base 5 and the outer sleeve 1. One end of the round interface 6 is inserted into the inside of the socket base 5, and the other end of the round interface 6 wraps the outer sleeve 1. The two ends of the round interface 6 are connected with the socket base 5 and the outer sleeve 1 by rivets respectively. In order to improve the connection convenience between the socket base 5 and the outer sleeve 1, the round interface 6 is arranged between the socket base 5 and the outer sleeve 1. One end of the round interface 6 is inserted into the inside of the socket base 5, and the other end of the round interface 6 wraps the outer sleeve 1. This can provide convenience for the connection between the outer sleeve 1 and the socket base 5. The two ends of the round interface 6 are connected with the socket base 5 and the outer sleeve 1 by rivets respectively, which can improve the connection stability between the socket base 5 and the outer sleeve 1.

[0045] The rubber sealing sleeve 7 is arranged on the outer wall of the inner circular interface 6 of the socket base 5, and the radial dimension of the rubber sealing sleeve 7 is greater than the radial dimension of the circular interface 6, so that the sealing reliability of the socket base 5 is improved, and the socket base 5 is prevented from leaking.

[0046] The interface limiting protrusion 8 is arranged on the circular interface 6 between the socket base 5 and the outer sleeve 1, and the interface limiting protrusion 8 protrudes from the outer wall of the circular interface 6, so that the connection position of the two ends of the circular interface 6 is limited, and the stability of the circular interface 6 during use is improved.

[0047] The sound-absorbing inner tube composed of the aluminum alloy belts with the wave-shaped cross section can maintain the sound-absorbing effect of the heat-insulating inner tube, the aluminum alloy belts are used instead of the traditional aluminum foils, the thickness of the pipe wall of the sound-absorbing inner tube is improved, the sound-absorbing inner tube is not damaged when solid impurities collide with the sound-absorbing inner tube, the supporting effect of the sound-absorbing inner tube is maintained, the aluminum alloy belts are wound along the length direction of the outer sleeve, the bottom edge of the aluminum alloy belt of the upper layer covers the top edge of the aluminum alloy belt of the lower layer, the connection tightness of the adjacent aluminum alloy belts is improved, the sealing reliability of the sound-absorbing inner tube is ensured, and the torsion use requirement of the sound-absorbing inner tube is met.

[0048] The above-mentioned embodiments only exemplarily illustrate the principle and effect of the utility model, and are not used for limiting the utility model. All equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.

Claims

1. A metal deadened hose characterized by, The utility model relates to a sound-absorbing pipe, which comprises an outer sleeve and a sound-absorbing inner tube, wherein the sound-absorbing inner tube is a metal corrugated hose with micro-perforation, the sound-absorbing inner tube is wrapped with a polyester isolation layer, the outer sleeve wraps the sound-absorbing inner tube, and a sound-absorbing layer is arranged in the space between the inner wall of the outer sleeve and the outer wall of the sound-absorbing inner tube, the outer sleeve is a metal corrugated hose, and socket-type interfaces are arranged at both ends of the outer sleeve. The sound-absorbing inner tube is made of galvanized iron sheet, aluminum alloy or stainless steel, the sound-absorbing inner tube is wound along the length direction of the outer sleeve, the bottom edge of the sound-absorbing inner tube of the upper layer covers the top edge of the sound-absorbing inner tube of the lower layer, and the corrugations of adjacent sound-absorbing inner tubes overlap each other.

2. The metal deadened hose of claim 1, wherein: A winding interface is arranged at the top edge of the sound-absorbing inner tube, a limiting buckle is arranged at the bottom edge of the sound-absorbing inner tube, and the limiting buckle is embedded in the winding buckle at the top edge and the bottom edge of adjacent sound-absorbing inner tubes.

3. The metal deadened hose of claim 1, wherein: The sound-absorbing layer is glass wool or rubber-plastic sponge.

4. The metal deadened hose of claim 1, wherein: The winding mode of the outer sleeve is consistent with the winding mode of the sound-absorbing inner tube, and the thickness dimension of the outer sleeve is greater than the thickness dimension of the sound-absorbing inner tube.

5. The metal deadened hose of claim 1, wherein: Socket bases are arranged between the socket-type interfaces at both ends of the outer sleeve and the outer wall of the outer sleeve.

6. The metal deadened hose of claim 1, wherein: A round interface is arranged between the socket base and the outer sleeve, one end of the round interface is inserted into the interior of the socket base, the other end of the round interface wraps the outer sleeve, and the round interface is connected to the socket base and the outer sleeve at both ends through rivets, respectively.

7. The metal deadened hose of claim 6, wherein: A rubber sealing sleeve is arranged on the outer wall of the round interface in the socket base, and the radial dimension of the rubber sealing sleeve is greater than the radial dimension of the round interface.

8. The metal deadened hose of claim 6, wherein: An interface limiting protrusion is arranged on the round interface between the socket base and the outer sleeve, and the interface limiting protrusion protrudes from the outer wall of the round interface.

9. The metal deadened hose of claim 6, wherein: ​

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