CN222697083U - Main pipe flange fastener and main pipe flange expander - Google Patents
Main pipe flange fastener and main pipe flange expander Download PDFInfo
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- CN222697083U CN222697083U CN202421523467.XU CN202421523467U CN222697083U CN 222697083 U CN222697083 U CN 222697083U CN 202421523467 U CN202421523467 U CN 202421523467U CN 222697083 U CN222697083 U CN 222697083U
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- main pipe
- pipe flange
- expander
- clamping
- arc
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Abstract
The utility model relates to the technical field of auxiliary tools for replacing flange sealing rings, and discloses a main pipe flange fastener and a main pipe flange expander. The flange fastener is responsible for, including cassette and arc cardboard, the arc draw-in groove has been seted up on the cassette, the bayonet socket has been seted up to the one end of arc cardboard on the cassette, the bayonet socket has been seted up to the other end, form spacing space between arc cardboard and the arc draw-in groove, the chucking screw is installed in the rotation on the cassette, threaded connection has the chucking swivel nut on the chucking screw, operating handle is installed perpendicularly to the upper end of chucking swivel nut. The main pipe flange expander is simple in structure, low in manufacturing cost, high in material strength and low in maintenance cost, effectively improves the treatment efficiency of leakage faults of a vehicle pipe system, reduces the off-vehicle temporary repair rate of the vehicle, and provides powerful guarantee for railway transportation safety.
Description
Technical Field
The utility model relates to the technical field of auxiliary tools for replacing flange sealing rings, in particular to a main pipe flange fastener and a main pipe flange expander.
Background
Flange joint is a key component of railway vehicle brake piping, and flange joint leakage is one of the factors threatening railway wagon driving safety. The railway wagon brake pipe system is mainly sealed by adopting a flange joint and an E-shaped sealing ring in a matched manner, and as the sealing ring is influenced by various pressures and temperatures during operation, the material is easy to age and harden for a long time to cause failure, and the due self-sealing performance is lost, so that the sealing ring needs to be replaced in time. In the application maintenance operation, the sealing ring replacement process of the main pipe flange is very time-consuming and labor-consuming, and the risk is great, if the concentric positioning of the main pipes at the two ends of the flange can not be maintained during the replacement, the phenomena of the other strength, torsion and the like of the main pipes at the two ends of the flange can easily occur, and the potential risks such as rubber ring extrusion, breakage and the like are caused during the installation of the sealing ring. In order to improve the working efficiency, better adapt to the specific environment on site, reduce the difficulty and the danger coefficient of fault handling, solve the problem that time consuming and labor consuming exist when the fault handling, the efficient completion fault handling work has developed a main pipe flange fastener and main pipe flange expander.
Disclosure of utility model
In view of the above, it is an object of the present utility model to provide a main pipe flange fastener and a main pipe flange expander, which solve the above-mentioned problems pointed out in the background art.
In order to achieve the above object, the following technical scheme is adopted:
the flange fastener is responsible for, including cassette and arc cardboard, the arc draw-in groove has been seted up on the cassette, the bayonet socket has been seted up to the one end of arc cardboard on the cassette, the bayonet socket has been seted up to the other end, form spacing space between arc cardboard and the arc draw-in groove, the chucking screw is installed in the rotation on the cassette, threaded connection has the chucking swivel nut on the chucking screw, operating handle is installed perpendicularly to the upper end of chucking swivel nut.
As a further improvement of the utility model, the clamping seat is provided with a mounting groove, and the lower end of the clamping screw is rotatably arranged in the mounting groove through a rotating shaft.
As a further improvement of the utility model, the end part of the operating handle is fixed with an anti-falling clamping protrusion.
The main pipe flange expander comprises the main pipe flange fastener as claimed in any one of the above, and further comprises an adjusting screw, wherein one end of the adjusting screw is fixedly provided with a jacking block, and the other end of the adjusting screw is fixedly connected with a hexagon bolt head after penetrating through a first threaded hole in the main pipe flange fastener.
The main pipe flange expander comprises any one of the main pipe flange fasteners, wherein two main pipe flange fasteners are arranged in parallel, the main pipe flange expander further comprises two symmetrically arranged adjusting screws, one end of each adjusting screw is fixedly connected with one main pipe flange fastener, the other end of each adjusting screw penetrates through a second threaded hole in the other main pipe flange fastener and then is fixedly provided with a chain wheel, the two chain wheels are connected through a connecting chain in a driving mode, and the middle part of one chain wheel is fixedly connected with a hexagon bolt head.
As a further improvement of the utility model, the connecting chain between the two chain wheels is in a loose state, when the connecting chain is used, the main pipe flange expander is fixed on the main pipe through the main pipe flange fastener, and the main pipe is positioned in a limiting space formed between the arc clamping plate and the arc clamping groove, and the connecting chain is in a loose state to be out of the main pipe accommodating space, so that the normal use of the connecting chain is realized.
The beneficial effects of the utility model are as follows:
1. The main pipe flange expander is simple in structure, low in manufacturing cost, high in material strength and low in maintenance cost;
2. The operation is convenient and rapid, the limited space is convenient to operate, the difficulty of labor-connected collaboration of personnel is reduced, and the treatment time is shortened;
3. The flange has the advantages of realizing concentric positioning of main pipes at two ends of the flange, having better stability and convenient operation in limited space, reducing the potential risks of rubber ring extrusion, breakage and the like caused by the phenomena of the main pipes at two ends of the flange such as strength and torsion and the like to a greater extent when the E-shaped sealing ring is installed;
4. The system has the reliability and stability of fault handling, effectively improves the handling efficiency of the leakage faults of the vehicle piping, reduces the vehicle off-hook temporary repair rate, and provides powerful guarantee for railway transportation safety.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
FIG. 1 is a schematic view of the main pipe flange fastener of the present utility model;
FIG. 2 is an enlarged view of FIG. 1;
FIG. 3 is a schematic view of the construction of a one-way main pipe flange expander;
Fig. 4 is a schematic structural view of a bi-directional main pipe flange expander.
In the figure, 1, a main pipe flange fastener, 2, a clamping seat, 3, an arc clamping plate, 4, an arc clamping groove, 5, a bayonet, 6, a limiting space, 7, a clamping screw, 8, a clamping screw sleeve, 9, an operating handle, 10, an installation groove, 11, a rotating shaft, 12, an anti-falling clamping protrusion, 13, an adjusting screw, 14, a top block, 15, a first threaded hole, 16, a hexagonal bolt head, 17, a second threaded hole, 18, a sprocket, 19 and a connecting chain.
Detailed Description
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.
In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
Example 1
As shown in fig. 1-2, the main pipe flange fastener comprises a clamping seat 2 and an arc clamping plate 3, wherein an arc clamping groove 4 is formed in the clamping seat 2, one end of the arc clamping plate 3 is hinged to the clamping seat 2, a bayonet 5 is formed in the other end of the arc clamping plate, a limiting space 6 is formed between the arc clamping plate 3 and the arc clamping groove 4, a clamping screw 7 is rotatably mounted on the clamping seat 2, a clamping screw sleeve 8 is in threaded connection with the clamping screw 7, an operating handle 9 is vertically mounted at the upper end of the clamping screw sleeve 8, and the outer diameter of the clamping screw sleeve 8 is larger than that of the bayonet 5.
The clamping seat 2 is provided with a mounting groove 10, and the lower end of the clamping screw 7 is rotatably mounted in the mounting groove 10 through a rotating shaft 11.
An anti-falling clamping protrusion 12 is fixed at the end part of the operating handle 9.
Example 2
As shown in fig. 3, the main pipe flange expander comprises the main pipe flange fastener 1 as claimed in any one of the above, and further comprises an adjusting screw 13, wherein one end of the adjusting screw 13 is fixedly provided with a top block 14, and the other end of the adjusting screw is fixedly connected with a hexagon bolt head 16 after penetrating through a first threaded hole 15 on the main pipe flange fastener 1.
The main pipe flange expander disclosed in the embodiment is a unidirectional main pipe flange expander, and when the main pipe flange (except for a tee joint) leaks air, the unidirectional main pipe flange expander is used, and the operation method during use is as follows:
(1) Closing the cut-off plug door of the host vehicle, and removing residual air in the auxiliary air cylinder, and closing the bevel plug doors at two ends of the host vehicle and the bevel plug door of the adjacent vehicle, and removing residual air under the pressure of the host vehicle main pipe.
(2) The angle cock at the air leakage side of the flange and the U-shaped clamp of the main pipe are loosened.
(3) The main pipe flange nuts are loosened (the bolts are not removed).
(4) The unidirectional main pipe expander is arranged on a main pipe (the inner end and the outer end are determined according to the situation) at the position of the nearby large cross beam or the sleeper beam, the hexagonal bolt head 16 faces to the outer side of the vehicle body during installation, and the hexagonal bolt head 16 is operated by using a hexagonal wrench, so that the gap at the flange joint of the main pipe can be rapidly expanded, and the sealing ring is convenient to replace.
(5) After the replacement is finished, the flange expander is disassembled, the flange body nut is fastened, the bevel cock is opened, the cock is cut off, the air is filled, after the leak detection agent is detected to be qualified, the bevel cock and the main pipe U-shaped clip nut are fastened for a brief test, and the operation is finished.
The unidirectional expander has the characteristics of simple process, low manufacturing cost, high material strength and low maintenance cost. The operation is convenient and fast, the limited space is convenient to operate, the difficulty of labor-connected collaboration of personnel is reduced, the purpose of single operation is realized, and the treatment time is shortened.
Example 3
As shown in fig. 4, the main pipe flange expander comprises two main pipe flange fasteners 1 as described in any one of the above, wherein the two main pipe flange fasteners 1 are arranged in parallel, and the main pipe flange expander further comprises two symmetrically arranged adjusting screws 13, one end of each adjusting screw 13 is fixedly connected with one main pipe flange fastener 1, the other end of each adjusting screw passes through a second threaded hole 17 in the other main pipe flange fastener 1 and then is fixedly provided with a chain wheel 18, the two chain wheels 18 are in driving connection through a connecting chain 19, and the middle part of one chain wheel 18 is fixedly connected with a hexagon bolt head 16.
The connecting chain 19 between the two chain wheels 18 is in a loose state, when the connecting chain is used, the main pipe flange expander is fixed on a main pipe through the main pipe flange fastener 1, the main pipe is located in a limiting space 6 formed between the arc clamping plate 3 and the arc clamping groove 4, and the connecting chain 19 is in a loose state to be out of a main pipe accommodating space, so that normal use of the connecting chain 19 is realized.
The main pipe flange expander disclosed in the embodiment is a bidirectional main pipe flange expander, and the air leakage at the main pipe tee joint is realized by using the bidirectional main pipe flange expander, and the operation method during use is as follows:
(1) Closing the cut-off plug door of the host vehicle, and removing residual air in the auxiliary air cylinder, and closing the bevel plug doors at two ends of the host vehicle and the bevel plug door of the adjacent vehicle, and removing residual air under the pressure of the host vehicle main pipe.
(2) The angle cock at the air leakage side of the flange and the U-shaped clamp of the main pipe are loosened.
(3) The main pipe flange nuts are loosened (the bolts are not removed).
(4) The bi-directional main pipe flange expander is installed, the hexagonal bolt head 16 faces the outer side of the automobile body during installation, the hexagonal bolt head 16 is operated by using a hexagonal wrench, the gap at the main pipe flange joint can be rapidly expanded under the matching action of the connecting chain 19 and the chain wheel 18, the synchronous expansion effect of the two adjusting screws 13 is realized, the main pipe flange joint is stably expanded until the E-shaped sealing ring can be taken out from the joint and replaced.
(5) After the replacement is finished, the flange expander is disassembled, the flange body nut is fastened, the bevel cock is opened, the cock is cut off, the air is filled, after the leak detection agent is detected to be qualified, the bevel cock and the main pipe U-shaped clip nut are fastened for a brief test, and the operation is finished.
The bidirectional expander has the characteristics of simple process, low manufacturing cost, high material strength and low maintenance cost. The concentric positioning of the main pipes at the two ends of the flange is realized, the stability is better, and the limited space is convenient to operate. The potential risks of rubber ring extrusion, damage and the like caused by the phenomena of the main pipe at the two ends of the flange such as strength and torsion and the like are reduced to a greater extent.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, component disassembly, or combination thereof, etc. that falls within the spirit and principles of the present utility model should be included in the scope of the present utility model.
Claims (6)
1. The main pipe flange fastener is characterized by comprising a clamping seat and an arc clamping plate, wherein an arc clamping groove is formed in the clamping seat, one end of the arc clamping plate is hinged to the clamping seat, a bayonet is formed in the other end of the arc clamping plate, a limiting space is formed between the arc clamping plate and the arc clamping groove, a clamping screw is rotatably mounted on the clamping seat, a clamping screw sleeve is connected onto the clamping screw in a threaded manner, and an operating handle is vertically mounted at the upper end of the clamping screw sleeve.
2. The main pipe flange fastener according to claim 1, wherein the clamping seat is provided with a mounting groove, and the lower end of the clamping screw is rotatably mounted in the mounting groove through a rotating shaft.
3. The main pipe flange fastener according to claim 1, wherein the end of the operating handle is fixed with an anti-slip-out protrusion.
4. The main pipe flange expander is characterized by comprising the main pipe flange fastener as claimed in any one of claims 1-3 and further comprising an adjusting screw, wherein one end of the adjusting screw is fixedly provided with a top block, and the other end of the adjusting screw is fixedly connected with a hexagon bolt head after penetrating through a first threaded hole in the main pipe flange fastener.
5. The main pipe flange expander is characterized by comprising two main pipe flange fasteners in parallel according to any one of claims 1-4 and two symmetrically arranged adjusting screws, wherein one end of each adjusting screw is fixedly connected with one main pipe flange fastener, the other end of each adjusting screw penetrates through a second threaded hole in the other main pipe flange fastener and is fixedly provided with a chain wheel, the two chain wheels are in driving connection through a connecting chain, and the middle part of one chain wheel is fixedly connected with a hexagon bolt head.
6. The main pipe flange expander of claim 5 wherein the connecting chain between the two sprockets is in a relaxed state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421523467.XU CN222697083U (en) | 2024-06-28 | 2024-06-28 | Main pipe flange fastener and main pipe flange expander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421523467.XU CN222697083U (en) | 2024-06-28 | 2024-06-28 | Main pipe flange fastener and main pipe flange expander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222697083U true CN222697083U (en) | 2025-04-01 |
Family
ID=95140676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421523467.XU Active CN222697083U (en) | 2024-06-28 | 2024-06-28 | Main pipe flange fastener and main pipe flange expander |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222697083U (en) |
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2024
- 2024-06-28 CN CN202421523467.XU patent/CN222697083U/en active Active
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