Pipeline assembly welding protective cover capable of being used in non-clean environment

Abstract

The utility model discloses a pipeline assembly welding protection cover capable of being used in a non-clean environment. The pipeline assembly welding protection cover comprises an assembly supporting frame, an outer cover and two sets of circular fastening sleeves. The two groups of paired support frames are respectively used for bearing two stainless steel clean pipe sections; each group of circular fastening sleeves is hooped on the opening structure of each stainless steel clean pipe section through an adjustable sealing gasket, and the two groups of circular fastening sleeves are adjusted and connected through a distance adjusting mechanism; the two sets of fastening sleeves are sleeved with an outer cover, the outer cover is connected with the stainless steel clean pipe section in a sealed mode and used for providing a closed space, and an inflation inlet is formed in the outer cover and used for being externally connected with protective gas, so that positive pressure is kept in the outer cover, and air is prevented from entering the outer cover. Stable connection and protective gas are provided for the assembly support through the outer cover and the fastening sleeve, so that stainless steel clean pipe sections can be accurately butted in a clean environment, the problem of thermal deformation during welding is solved, and a clean operation environment is provided for welding operation.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of stainless steel clean pipe section welding of circular thin wall, especially to a kind of thin wall stainless steel clean pipe section welding process needing in clean environment. BACKGROUND

[0002] Special stainless steel clean pipe section needs to be welded in clean environment, and the process requirement for stainless steel clean pipe section welding in clean environment is high, and there are the following problems:

[0003] 1, the clean requirement of existing clean shed cannot meet the stainless steel clean pipe section welding with higher clean requirement.

[0004] 2, since the wall of stainless steel clean pipe section is thin, the wall thickness is only 1-3mm, and for circular stainless steel clean pipe section, outer group is usually used to connect and install support, since the wall thickness is only 1-3mm, and the structure problem of circular leads to that it is particularly troublesome to install stainless steel clean pipe section with such thin wall, and the opening installation of the butt joint of two stainless steel clean pipe sections is easily deformed, and the opening butt joint consistency and accuracy of two stainless steel clean pipe sections cannot be guaranteed when butt joint, which affects welding result.

[0005] Or in clean operating room or electronic workshop, etc., under special circumstances, a temporary protective cover with higher clean requirement is needed, so a protective cover with clean operation space is needed. SUMMARY

[0006] The utility model aims at providing a kind of stainless steel clean pipe section welding process for circular thin wall in clean environment.

[0007] To achieve the above object, the utility model adopts the following technical scheme:

[0008] A pipe group butt welding protective cover for non-clean environment can be used to group butt two stainless steel clean pipe sections circular opening structure, comprising group butt support frame, outer cover and two groups of circular fastening sleeve;The group butt support frame adopts two groups, and is respectively used to support two stainless steel clean pipe sections;Each group of circular fastening sleeve is arranged on the opening structure of each stainless steel clean pipe section by adjustable sealing gasket hoop, and the two groups of circular fastening sleeve are adjusted and connected by spacing adjusting mechanism;Two groups of fastening sleeve are provided with outer cover, the outer cover is sealed with stainless steel clean pipe section, for providing closed space, the outer cover is provided with inflation port, the inflation port is used to connect protective gas, so that the outer cover keeps positive pressure, and air is prevented from entering.

[0009] Preferably, the cover comprises two C-shaped shell bodies, the two shell bodies are symmetrically arranged, and the two shell bodies are sealingly connected with the stainless steel clean pipe section through a sealing strip.

[0010] Preferably, at least two groups of openable operation covers are arranged on the two shell bodies, and the operation covers are used for maintenance, observation or welding operation of the stainless steel clean pipe section in the cover.

[0011] Preferably, two ends of each group of the circular fastening sleeves are connected with a group of adjusting mechanisms respectively, each group of the adjusting mechanisms comprises two interval adjusting screws and an adjusting nut, the outer threads of the two interval adjusting screws are opposite, the two interval adjusting screws are arranged in the same side end of the two groups of the fastening sleeves respectively, and one end of the two interval adjusting screws is connected with two ends of the adjusting nut respectively, and the distance between the two groups of the fastening sleeves is adjusted by adjusting the position of the adjusting nut on the two interval adjusting screws.

[0012] Preferably, a disc-shaped manual adjusting disc is arranged on the cover, the manual adjusting disc is arranged on the cover and located on one side of the inflation port, one end of the manual adjusting disc in the cover is connected with the adjusting nut, the adjusting nut is internally provided with a vertical gear, a horizontal gear and a bolt, two ends of the bolt are connected with the two interval adjusting screws respectively, the bolt is externally provided with an external gear, the bolt is connected with the horizontal gear through the external gear, and the horizontal gear is connected with the vertical gear; the vertical gear of the adjusting nut is rotated by rotating the manual adjusting disc, the horizontal gear is rotated by the rotation of the vertical gear, the bolt with the external gear is rotated, the position of the two interval adjusting screws is adjusted, and the distance between the two groups of the fastening sleeves is adjusted through the manual adjusting disc on the cover.

[0013] Preferably, each group of the circular fastening sleeves comprises two arc-shaped fastening strips, the center of each fastening strip is connected with an adjusting bolt through a thread, the adjusting bolt is connected with a sealing gasket, and the curvature of the sealing gasket is consistent with the outer arc of the stainless steel clean pipe section; the sealing gasket connected with the adjusting bolt is tightly attached to the surface of the stainless steel clean pipe section by rotating the top of the adjusting bolt, and then the fastening sleeve is stably and tightly connected with the circular opening structure of the stainless steel clean pipe section.

[0014] Compared with the prior art, the utility model has the advantages of the following:

[0015] The utility model provides stable connection and protection gas for the group of supports through the cover and the fastening sleeve, so that the stainless steel clean pipe section can be precisely connected in a clean environment, the problem of thermal deformation during welding is overcome, and a clean operation environment is provided for welding operation.

[0016] The utility model also can apply in clean operating room or electronic workshop etc., under special circumstances, temporarily need a clean requirement higher protection cover situation. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The utility model provides a structure schematic diagram of pipeline group butt welding protection cover for non-clean environment;

[0018] Figure 2 For Figure 1 Partially cut structure schematic diagram of group butt support;

[0019] Figure 3 The utility model provides a structure schematic diagram of middle fastening sleeve of pipeline group butt welding protection cover for non-clean environment.

[0020] The figure serial number is as follows:

[0021] 1, stainless steel clean pipe section; 2, group butt support frame; 3, outer cover; 4, operating cover; 5, manual adjusting disc; 6, inflation port; 7, sealing strip; 8, adjusting bolt; 9, fastening sleeve; 10, spacing adjusting screw; 11, adjusting nut. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0023] As Figures 1 to 3 The utility model provides a structure schematic diagram of pipeline group butt welding protection cover for non-clean environment, is used to group butt for the opening structure of two stainless steel clean pipe sections 1 round, including group butt support frame 2, outer cover 3 and two groups of round fastening sleeve 9.

[0024] Each group of round fastening sleeve 9 is arranged on the opening structure of each stainless steel clean pipe section 1 through adjustable sealing pad hoop, and the adjustment and connection between the two groups of round fastening sleeve 9 are realized through spacing adjusting mechanism.

[0025] The outer cover 3 is provided with the outer cover 3 on the two groups of fastening sleeve 9, the outer cover 3 is sealed with the stainless steel clean pipe section 1, is used to provide closed space, and the inflation port 6 is arranged on the outer cover 3, the inflation port 6 is used to connect the protection gas, so that the positive pressure in the outer cover 3 is kept, and air is prevented from entering.

[0026] The outer cover 3 includes two C-shaped structure housings, the two housings are symmetrically arranged, and the two housings are sealingly connected with the stainless steel clean pipe section 1 through the sealing strip 7. At least two groups of openable and closable operating covers 4 are arranged on the two housings, and the operating covers 4 are used to maintain and observe the stainless steel clean pipe section 1 in the outer cover 3.

[0027] Two ends of the two groups of circular fastening sleeves 9 are connected with a group of adjusting mechanisms respectively, each group of adjusting mechanisms comprises two interval adjusting screws 10 with opposite external threads and an adjusting nut 11, the two interval adjusting screws 10 are arranged in the same side of the two groups of fastening sleeves 9 respectively, and one end of the two interval adjusting screws 10 is connected with two ends of the adjusting nut 11 respectively, the distance between the two groups of fastening sleeves 9 is adjusted by the position of the adjusting nut on the two interval adjusting screws 10.

[0028] The outer cover 3 is provided with a manual adjusting disc 5 in disc structure, the manual adjusting disc 5 is arranged in the outer cover 3 and located at one side of the inflation port 6, and one end of the manual adjusting disc 5 arranged in the outer cover 3 is connected with the adjusting nut 11; the adjusting nut 11 is provided with a vertical gear, a horizontal gear and a bolt, two ends of the bolt are connected with the two interval adjusting screws 10 respectively, the bolt is provided with an external gear outside, the bolt is connected with the horizontal gear through the external gear, and the horizontal gear is connected with the vertical gear; the rotation of the vertical gear of the adjusting nut 11 is driven by rotating the manual adjusting disc 5, the horizontal gear is driven to rotate by the rotation of the vertical gear, so that the bolt with the external gear is driven to rotate, and then the position on the two interval adjusting screws 10 is adjusted, so that the distance between the two groups of fastening sleeves 9 is adjusted through the manual adjusting disc 5 on the outer cover 3. (In this embodiment, although the working principle of the adjusting nut is described, it is not limited to this accessory, as long as the two interval adjusting screws 10 connected with two ends of the adjusting nut 11 can be uniformly rotated towards or away from each other after the rotation of the adjusting nut 11 is adjusted by the manual adjusting disc 5, so that the distance between the two groups of fastening sleeves 9 is adjusted.)

[0029] Further, in order to stably and tightly connect the fastening sleeve 9 with the circular opening structure of the stainless steel clean pipe section 1, each group of circular fastening sleeves 9 of the embodiment comprises two arc-shaped fastening strips, and the center of each fastening strip is connected with an adjusting bolt 8 through threading, the adjusting bolt 8 is connected with a sealing gasket, and the curvature of the sealing gasket is consistent with the outer arc of the stainless steel clean pipe section 1; the sealing gasket connected with the adjusting bolt 8 is tightly attached to the surface of the stainless steel clean pipe section 1 by rotating the top of the adjusting bolt 8, so that the fastening sleeve 9 is stably and tightly connected with the circular opening structure of the stainless steel clean pipe section 1.

[0030] Two ends of the two groups of circular fastening sleeves 9 are connected by spacing adjustment screw rods 10 and adjusted by adjusting nuts 11 (the connection by adjusting the two groups of circular fastening sleeves 9 in the mode of adjusting by bolts is prior art, and is not the technical feature of the utility model, so it is not described here); the two groups of circular fastening sleeves 9 are provided with an outer cover 3, the outer cover 3 is spliced by two C-shaped housings, the two housings are sealingly connected with the stainless steel clean pipe section 1 through a sealing strip 7, at least two groups of openable operation covers 4 are arranged on the two housings, the operation covers 4 are sealingly connected with the housings, and a gas inlet 6 is arranged on the outer cover 3, the gas inlet 6 is used for connecting a protective gas, so that the outer cover 3 is kept in positive pressure to prevent air from entering.

[0031] Further, a disc-shaped manual adjusting disc 5 is arranged on the outer cover 3 of the group support, the manual adjusting disc 5 is arranged on the outer cover 3 and located on one side of the gas inlet 6, one end of the manual adjusting disc 5 is connected with the adjusting nut 11, the adjusting nut 11 is moved on the spacing adjustment screw rod 10 by rotating the manual adjusting disc 5, so that the distance between the two groups of fastening sleeves 9 is tightened, and the tight connection is realized.

[0032] The working principle of the utility model is as follows:

[0033] First, the two stainless steel clean pipe sections 1 are respectively arranged on the two groups of group support frames 2; then the two groups of circular fastening sleeves 9 are arranged on the opening structures of the corresponding stainless steel clean pipe sections 1 through adjustable sealing gaskets; subsequently, the sealing gaskets connected with the adjusting bolts 8 are tightly attached to the surfaces of the stainless steel clean pipe sections 1 by rotating the adjusting bolts 8, so that the fastening sleeves 9 are stably and tightly connected with the circular opening structures of the stainless steel clean pipe sections 1; and then the outer cover 3 of the two C-shaped housings is sealingly connected with the stainless steel clean pipe sections 1 through the sealing strip 7.

[0034] The vertical gear of the adjusting nut 11 is rotated by rotating the manual adjusting disc 5, the horizontal gear is rotated by the rotation of the vertical gear, so that the bolt with the external gear is rotated, the position on the two spacing adjustment screw rods 10 is adjusted, and the distance between the two groups of fastening sleeves 9 is adjusted through the manual adjusting disc 5 on the outer cover 3.

[0035] Finally, the outer cover 3 is kept in positive pressure by connecting the protective gas through the gas inlet 6 on the outer cover 3, so that air is prevented from entering, and welding is carried out in a clean environment.

[0036] The openable operation covers 4 on the two housings of the outer cover 3 are used for maintaining, observing or welding the stainless steel clean pipe sections 1 in the outer cover 3.

[0037] The utility model discloses a cover and fastening sleeve are provided with firm connection and protection gas for group pair support, thereby make stainless steel clean pipe section 1 can realize accurate butt joint in clean environment, overcome the problem of thermal deformation when welding, can also provide clean operation environment for welding operation.

[0038] In the description of the utility model, need understanding, the term "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply the device or element indicated must have a particular orientation, with a particular orientation configuration and operation, therefore can not be understood as the restriction of the utility model.

[0039] In addition, the term "first", "second" is only for the purpose of description, and can not be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise expressly specifically limited.

[0040] The above, only for the preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any skilled in the art person in the utility model disclosed technical range, according to the technical scheme of the utility model and the utility model concept of the utility model, equivalent replacement or change, all should be covered in the protection scope of the utility model.

Claims

1. A pipe assembly welding protective cover that can be used in non-clean environments, characterized in that: Used for assembling the circular opening structures of two stainless steel clean pipe sections (1), comprising an assembly support frame (2), an outer cover (3) and two sets of circular fastening sleeves (9); The pair of support frames (2) are provided in two groups, each used to support two clean stainless steel pipe sections (1); Each group of circular fastening sleeves (9) is arranged on the opening structure of each of the stainless steel clean pipe sections (1) through an adjustable sealing washer, and the two groups of circular fastening sleeves (9) are adjusted and connected through a spacing adjustment mechanism; The outer covers of the two groups of fastening sleeves (9) are provided with outer covers (3), and the outer covers (3) are sealed with the stainless steel clean pipe section (1) to provide a closed space. The outer covers (3) are provided with an inflation port (6), and the inflation port (6) is used to connect an external protective gas to maintain a positive pressure in the outer covers (3) to prevent air from entering.

2. The pipe assembly welding protective cover that can be used in a non-clean environment according to claim 1 is characterized in that: The outer cover (3) comprises two C-shaped shells, the two C-shaped shells are symmetrically arranged, and the two shells are sealedly connected to the stainless steel clean pipe section (1) via a sealing strip (7).

3. The pipe assembly welding protective cover that can be used in a non-clean environment according to claim 2 is characterized in that: At least two groups of openable and closable operating covers (4) are provided on the two shells. The operating covers (4) are used for maintaining, observing or welding the clean stainless steel pipe section (1) inside the outer cover (3).

4. The pipe assembly welding protective cover that can be used in a non-clean environment according to claim 1 is characterized in that: The two ends of the two groups of circular fastening sleeves (9) are respectively connected by a group of adjustment mechanisms, and each group of the adjustment mechanisms includes two spacing adjustment screws (10) and an adjustment nut (11). The external threads on the two spacing adjustment screws (10) are opposite to each other. The two spacing adjustment screws (10) are respectively inserted into the ends of the same side of the two groups of fastening sleeves (9), and one end of the two spacing adjustment screws (10) is respectively connected to the two ends of the adjustment nut (11). The distance between the two groups of fastening sleeves (9) is adjusted by adjusting the position of the nut on the two spacing adjustment screws (10).

5. The pipe assembly welding protective cover that can be used in a non-clean environment according to claim 4 is characterized in that: The outer cover (3) is provided with a manual adjustment disk (5) with a disc structure. The manual adjustment disk (5) is passed through the outer cover (3) and is located on one side of the inflation port (6). One end of the manual adjustment disk (5) disposed inside the outer cover (3) is connected to an adjustment nut (11); A vertical gear, a horizontal gear and a bolt are provided inside the adjusting nut (11); two ends of the bolt are respectively connected to the two spacing adjusting screws (10); an external gear is provided outside the bolt; the bolt is meshed with the horizontal gear through the external gear; and the horizontal gear is meshed with the vertical gear; The manual adjustment disk (5) is rotated to drive the vertical gear of the adjustment nut (11) to rotate, and the rotation of the vertical gear drives the horizontal gear to rotate, thereby driving the bolt with the external gear to rotate, and then adjusting the position on the two spacing adjustment screws (10), so as to achieve the distance between the two sets of fastening sleeves (9) being adjusted through the manual adjustment disk (5) on the outer cover (3).

6. The pipe assembly welding protective cover that can be used in a non-clean environment according to claim 1 is characterized in that: Each set of circular fastening sleeves (9) includes two upper and lower arc-shaped fastening strips, and the center of each fastening strip is connected to an adjusting bolt (8) through a thread, and the adjusting bolt (8) is connected to a sealing gasket, and the curvature of the sealing gasket is consistent with the outer arc of the stainless steel clean pipe section (1); By rotating the top of the adjusting bolt (8), the sealing gasket connected to the adjusting bolt 8 is pressed against the surface of the stainless steel clean pipe section (1), thereby stably and firmly connecting the fastening sleeve (9) and the circular opening structure of the stainless steel clean pipe section (1).

Images