Pipeline air charging device and method

Abstract

The invention discloses a pipeline air charging device and method, and relates to the technical field of vehicle detection and maintenance, the pipeline air charging device comprises a supporting seat, a positioning gland and a transition joint, the supporting seat is of a hook-shaped structure, and the supporting seat is provided with a clamping groove used for clamping a car coupler main blast pipe fixing seat; one end of the supporting seat is connected with a positioning gland, a transition connector is installed on the side, away from the supporting seat, of the positioning gland and used for being connected with an air charging pipeline, and the other side of the positioning gland is used for being in butt joint with a vehicle body air pipe. The supporting seat is designed according to the outer contour of the coupler, accurate, firm and reliable positioning is guaranteed, and the air charging efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle detection and maintenance, and particularly relates to a pipeline air charging device and method. BACKGROUND

[0002] After the pipeline installation process is completed, the pipeline air charging needs to be carried out to carry out pressure test. In addition, in subsequent vehicle completion, vehicle measurement data acquisition, weighing test and limit test, etc. links, the vehicle also needs to be charged. In the actual operation process, the connection between the main air pipe and the car coupler air pipe needs to be disassembled first, and then a conversion joint is matched with a standard pipe joint. The matched charging pipe head is connected with the main air pipe, and then the test can be carried out. However, this operation mode makes the main air pipe unable to carry out leakage test at the connection with the car coupler air pipe, and there are the following two difficulties: Firstly, the construction difficulty is large and there is a safety hazard: the operator needs to enter the narrow space under the vehicle body frame to carry out disassembly and assembly work, which is inconvenient to move, and repeated disassembly and assembly can easily cause damage to the accessories. At the same time, the operator faces a high safety risk during construction. Secondly, the pressure test has a loophole: since the conversion joint of the external air source is only matched with the main air hose joint, the pipeline between the main air hose interface and the car coupler cannot be pressure tested, and it cannot be confirmed whether there is a leakage at the connection between the main air hose and the car coupler.

[0003] There are also disclosed car coupler air connection toolings in the prior art, for example, a tooling structure including a fixed plate, a support, a fixed rod, a clamping piece, etc. The clamping piece includes a lead screw and a screwing part, and the lead screw is clamped by rotating the lead screw. The above scheme needs the operator to rotate the lead screw, and the fixed rod needs to be kept horizontal during the rotation of the lead screw, otherwise the positioning will be inaccurate. Therefore, the above operation process needs to consume a certain amount of time, and has high requirements for the operator. It is not suitable for the narrow space under the vehicle body frame. SUMMARY

[0004] In view of the deficiencies in the prior art, the purpose of the present application is to provide a pipeline air charging device and method, which designs a support seat according to the external contour of the car coupler, ensures accurate and firm and reliable positioning, and improves the air charging efficiency.

[0005] In order to achieve the above-mentioned purpose, the present application is realized by the following technical scheme: In a first aspect, the present application provides a pipeline air charging device, which comprises a support seat, a positioning gland and a transition joint. The support seat is in the shape of a hook, and the support seat is provided with a clamping groove for clamping a car coupler main air pipe fixing seat. One end of the support seat is connected with the positioning gland, and the transition joint is installed on the side of the positioning gland away from the support seat. The transition joint is used to connect the air charging pipeline, and the other side of the positioning gland is used to abut against the vehicle air pipe.

[0006] As a further implementation, the support base comprises two mutually parallel support frames connected by a connecting rod.

[0007] As a further implementation, each support frame is in a hook shape.

[0008] As a further implementation, the support frame has a long end with a hook head and a short end for connecting a positioning gland.

[0009] As a further implementation, the positioning gland is connected to the support base by a fastener.

[0010] As a further implementation, the support base is provided with a positioning cylinder for the fastener to pass through.

[0011] As a further implementation, the positioning gland is fixed with a connecting pipe on one side, and the connecting pipe is connected to the transition joint. The other side of the positioning gland is provided with a groove for abutting the vehicle body air pipe.

[0012] As a further implementation, the groove is a circular groove, and the groove is coaxially arranged with the connecting pipe.

[0013] In a second aspect, the application further provides a pipeline air charging method using the pipeline air charging device, comprising: The support base is clamped under the vehicle body chassis below the lower side of the vehicle hook total air pipe fixing base, so that the vehicle body air pipe is abutted with the positioning gland. The transition joint is connected to the air charging pipeline, and the air source is opened for air charging operation.

[0014] As a further implementation, when the support base is clamped on the lower side of the vehicle hook total air pipe fixing base, the lower surface of the vehicle hook total air pipe fixing base abuts against the bottom surface of the clamping groove, and the hook head of the support base hooks the side surface of the vehicle hook total air pipe fixing base.

[0015] The beneficial effects of the application are as follows: (1) The pipeline air charging device of the application comprises a support base, a positioning gland and a transition joint, the support base is in a hook shape and can be well matched with the vehicle hook total air pipe fixing base; the positioning gland is connected to the support base, and the transition joint on one side of the positioning gland is used to connect the air charging pipeline, and the other side of the positioning gland is used to abut the vehicle body air pipe; when the support base is clamped and matched with the vehicle hook total air pipe fixing base, the precise abutment of the transition joint and the vehicle body air pipe can be realized; the overall structure is simple, easy to operate in the limited space under the vehicle, and once installed, it can be used multiple times due to the clamping of the support base and the vehicle hook total air pipe fixing base.

[0016] (2) The support seat of the application comprises two support frames in parallel and hook-shaped structure, which can realize lightweight while cooperating with the car hook total air pipe fixing seat, ensure the stable cooperation of the pipeline air charging device and the car hook total air pipe fixing seat; meanwhile, the positioning gland has coaxially arranged connecting pipe, through hole and groove, when the clamping groove bottom surface of the support frame is attached to the lower surface of the car hook total air pipe fixing seat, the vehicle body air pipe is connected with the groove, thereby realizing rapid assembly and improving the installation and air charging efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings accompanying the specification of the application form a part of the application and serve to provide further understanding of the application, the exemplary examples of the application and the description thereof serve to explain the application, and do not constitute improper limitation on the application.

[0018] Figure 1 is a schematic diagram of the pipeline air charging device structure according to one or more embodiments of the application; Figure 2 is a schematic diagram of the positioning gland structure according to one or more embodiments of the application; Figure 3 is a schematic diagram of the transition joint structure according to one or more embodiments of the application; Figure 4 is a schematic diagram of the pipeline air charging device installation according to one or more embodiments of the application.

[0019] 1, transition joint, 2, connecting pipe, 3, fastener, 4, positioning gland, 5, support frame, 6, connecting rod, 7, car hook total air pipe fixing seat, 8, vehicle body air pipe, 9, groove, 10, positioning cylinder, 11, mounting hole, 12, hook head, 13, clamping groove, 14, through hole. DETAILED DESCRIPTION

[0020] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the application. Unless otherwise specified, all technical and scientific terms used in the application have the same meaning as generally understood by those skilled in the art to which the application belongs.

[0021] For the convenience of description, if the words "up", "down", "left", "right" appear in the application, they only mean the same as the up, down, left and right directions of the drawings themselves, and do not limit the structure, but only for the convenience of describing the application and simplifying the description, and therefore cannot be understood as limiting the application.

[0022] In order to make the purpose, technical scheme and advantages of the application more clear, the embodiments of the application will be further described in detail below with reference to the drawings.

[0023] Example 1: For the existing pipeline inflation pressure test, the operator needs to drill into the small space of the vehicle bottom to repeatedly disassemble and assemble the total air pipe and the vehicle hook air pipe, which is not only difficult to operate and low in efficiency, but also easy to cause damage to accessories and personal safety accidents; and the external air source can only be connected to the end of the total air hose, which causes the "total air hose-vehicle hook" section to be unable to be pressure tested; and the existing vehicle hook air path tooling structure is complex, requires high space and personnel skills, and is difficult to use quickly and reliably in a narrow vehicle bottom. Based on this, the embodiment provides a pipeline inflation device, Figure 1 is a structural schematic diagram of the pipeline inflation device provided by the embodiment of the present application, as an example, as shown in Figure 1 , the pipeline inflation device includes a support seat, a positioning gland 4 and a transition joint 1, the support seat is used to clamp the vehicle hook total air pipe fixing seat 7, the positioning gland 4 is used to position the transition joint 1 and the vehicle body air pipe 8, so that the two are precisely connected, and the overall structure is simple, facilitating operation in the limited space of the vehicle bottom.

[0024] As an example, the support seat is provided with a clamping groove 13, which is connected and matched with the vehicle hook total air pipe fixing seat 7, and the clamping groove 13 is matched with the shape of the vehicle hook. The support seat can be an integral structure, and the clamping groove 13 structure can be directly machined on the support seat. The support seat can also be a split structure, as shown in Figure 1 , the support seat of the embodiment includes two support frames 5, which are parallel to each other and connected by a connecting rod 6; the split structure can reduce the weight, so that the support seat and the vehicle hook total air pipe fixing seat 7 are more stable in clamping.

[0025] In the scheme provided by the embodiment of the present application, the support frame 5 is made according to the pipe connection mode of the head of the urban rail vehicle hook, and is provided in a hook-shaped structure, one end of which is a long end and the other end is a short end, and the clamping groove 13 is arranged between the long end and the short end; wherein the end of the long end is provided with a hook head 12, which hooks the side of the vehicle hook total air pipe fixing seat 7, and cooperates with the clamping groove 13 to realize the clamping of the vehicle hook total air pipe fixing seat 7. The short end of the support frame 5 is fixed with a positioning cylinder 10, and the fastener 3 is installed through the positioning cylinder 10 to realize the connection of the positioning gland 4 and the support frame 5. The positioning cylinder 10 of the embodiment is also a steel pipe, and its length is 20 mm.

[0026] In some examples, as shown in Figure 1As shown in the figure, the two support frames 5 are connected by a plurality of connecting rods 6, which are perpendicular to the plane on which the support frame 5 is located. Because the position of the connecting rod 6 cannot affect the cooperation of the card slot 13 and the coupler main air pipe fixing seat 7, the connecting rod 6 can be arranged at the connection area of the long end and the short end; the number of connecting rods 6 is set according to actual requirements. In this embodiment, two connecting rods 6 are provided, one of which is arranged near the short end of the support frame 5, and the other is arranged near the long end of the support frame 5. The length of the connecting rod 6 satisfies the cooperation of the coupler main air pipe fixing seat 7 and the card slot 13 of the two support frames 5, and in this embodiment, the connecting rod 6 is made of a steel pipe, and its length is 86mm.

[0027] Figure 2 is a schematic diagram of the positioning gland structure provided by the embodiment of the present application, as an example, combined with Figure 1 and Figure 2 As shown, the positioning gland 4 is used as a cooperation component between the transition joint 1 and the vehicle body air pipe 8, which is arranged outside the support seat and at the short end of the support frame 5. The shape of the positioning gland 4 can be set according to actual needs, in order to save installation space, the main part of the positioning gland 4 in this embodiment is set to be disc-shaped.

[0028] As shown in Figure 2 , the center of the positioning gland 4 is provided with a through hole 14, and the connecting pipe 2 is fixed on one side of the positioning gland 4 corresponding to the through hole 14, and a recess 9 is formed on the other side, and the recess 9 is also circular, the through hole 14 communicates the recess 9 and the connecting pipe 2, and the connecting pipe 2, the through hole 14 and the recess 9 are coaxially arranged; the circular recess 9 can be butt-jointed with the vehicle body air pipe 8, forming a wrapping effect on the end of the vehicle body air pipe 8, realizing effective sealing. The recess 9 has a certain depth, and its diameter is larger than the outer diameter of the connecting pipe 2. In this embodiment, the diameter of the through hole 14 is Ф12, the diameter of the recess 9 is Ф38, and the depth is 1.5mm.

[0029] In this embodiment, the connecting pipe 2 is welded and fixed with the positioning gland 4.

[0030] The two sides of the positioning gland 4 are symmetrically provided with mounting holes 11, which are threaded holes, as shown in Figure 4 , when the positioning gland 4 is connected with the support seat, the mounting hole 11 corresponds to the positioning cylinder 10, and the fastener 3 passes through the mounting hole 11 and the positioning cylinder 10 to realize connection, which is convenient for disassembly and assembly. In this embodiment, the fastener 3 includes a bolt, a nut and a gasket, the head of the bolt abuts one end of the positioning cylinder 10, the main body of the bolt passes through the positioning cylinder 10 and the mounting hole 11, and the nut and the gasket are installed outside the positioning gland 4 to realize locking and fixing. The size of the bolt, the nut and the gasket is selected according to actual requirements, for example, the size of the bolt is 10*50mm, and the nut and the gasket are M10 type.

[0031] Figure 4is a schematic diagram of the pipeline air charging device provided by the embodiment of the application. As an example, the support frame 5 is clamped on the lower side of the car coupler main air pipe fixing seat 7, the hook head 12 of the support frame 5 hooks the middle part of the right side of the car coupler main air pipe fixing seat 7, the positioning gland 4 is located on the left side of the car coupler main air pipe fixing seat 7, and the bottom surface of the car coupler main air pipe fixing seat 7 is attached to the bottom surface of the clamping groove 13. The inner surface of the clamping groove 13 is between the long end and the short end. The hook-shaped structure of the support frame 5 can realize stable cooperation with the car coupler main air pipe fixing seat 7. The car coupler main air pipe fixing seat 7 can be clamped by simple operation, and the operation in the narrow space of the car body underframe is facilitated.

[0032] The transition joint 1 is fixedly connected with the connecting pipe 2, so that the transition joint 1 is located on the outer side of the positioning gland 4. The transition joint 1 is used for connecting the air charging pipeline. After the pipeline air charging device cooperates with the car coupler main air pipe fixing seat 7, the car body air pipe 8 is butted against the groove 9 on one side of the positioning gland 4, so that the air charging pipeline is communicated with the car body air pipe 8, and the air charging operation is realized. Figure 3 is a schematic diagram of the transition joint structure provided by the embodiment of the application. The transition joint 1 adopts a quick connector as shown in Figure 3 The quick connector is threadedly connected with the connecting pipe 2. The quick connector is a prior structure, and details are not described herein.

[0033] In the scheme provided by the embodiment of the application, the pipeline air charging device includes a support seat, a positioning gland 4 and the like. The overall structure is simple, and the operation in the limited space of the car body is facilitated. The hook-shaped structure of the support seat is designed, so that the support seat can be matched with the car coupler main air pipe fixing seat 7 without additional complex structure. The cooperation mode of the support seat and the car coupler main air pipe fixing seat 7 is simple and stable. The support frame 5 is only needed to be clamped on the lower side of the car coupler main air pipe fixing seat 7, and the hook head 12 can hook the car coupler main air pipe fixing seat 7. Meanwhile, the hook-shaped structure is designed according to the external contour of the car coupler, and the positioning point is accurately positioned. The positioning gland 4 is used for positioning the transition joint 1 and the car body air pipe 8, so that the two are accurately butted, and effective sealing is guaranteed. The pipeline air charging device of the embodiment can be installed once and used repeatedly. The air charging efficiency of the vehicle is improved, and the air leakage phenomenon during the connection of the pipe joint is reduced.

[0034] Compared with the original air charging mode, each vehicle needs to be charged for nearly 1.0 hour on average. The pipeline air charging device provided by the embodiment of the application only needs 0.2 hour to complete the air charging through structure optimization. Meanwhile, the problem that the original air pipe of the urban rail vehicle is difficult to be connected to the pipe joint at the car coupler head to charge the vehicle is solved. The charging position is connected at the car coupler, and the air charging and pressure maintaining range is increased.

[0035] Embodiment 2: The pipeline inflation method provided by the present application adopts the pipeline inflation device described in Embodiment 1, first clamps the support seat under the vehicle body chassis below the lower side of the car hook total air pipe fixing seat 7, and makes the vehicle body air pipe 8 butt joint with the positioning gland 4; when the support seat is clamped to the lower side of the car hook total air pipe fixing seat 7, the lower surface of the car hook total air pipe fixing seat 7 is in abutment with the bottom surface of the clamping groove 13, and the hook head 12 of the support seat hooks the side surface of the car hook total air pipe fixing seat 7. Then the transition joint 1 is connected to the inflation pipeline, and the inflation operation is performed.

[0036] Next, the pipeline inflation method provided by the present application is specifically introduced: S1: Preparation work.

[0037] Firstly, the support seat, the positioning gland 4, the transition joint 1, the inflation pipeline and other parts required for inflation are inspected to ensure that each part can be normally used. At the same time, the working area under the vehicle body chassis is cleaned, and the state of the car hook total air pipe fixing seat 7 and the vehicle body air pipe 8 is confirmed.

[0038] The support seat, the positioning gland 4 and the transition joint 1 are pre-installed to form the pipeline inflation device. When the pipeline inflation device is assembled, two mutually parallel support frames 5 are placed on the assembly platform to ensure that the long ends of the two support frames 5 face the same direction. Then, a connecting rod 6 perpendicular to the two support frames 5 is placed between the two support frames 5 and is welded and fixed. Then, the mounting hole 11 of the positioning gland 4 is arranged in the center of the positioning cylinder 10 of the support frame 5, the bolt is passed through the positioning cylinder 10 and the mounting hole 11, and the end surface of the positioning gland 4 is made to abut the end surface of the positioning cylinder 10 by rotating the nut. The transition joint 1 is installed at the end of the connecting pipe 2 of the positioning gland 4.

[0039] S2: Install the support seat.

[0040] The operator moves the support seat to the lower side of the car hook total air pipe fixing seat 7 of the vehicle body chassis, appropriately adjusts the position of the support seat, and makes the lower surface of the car hook total air pipe fixing seat 7 gradually abut the bottom surface of the clamping groove 13. During the abutting process, the abutting condition of the car hook total air pipe fixing seat 7 and the support frame 5 is observed to ensure that they are tightly abutted without gaps. When the two are abutted in place, the hook head 12 of the support frame 5 accurately hooks the side surface of the car hook total air pipe fixing seat 7.

[0041] Since the positioning gland 4 is pre-connected to the support seat by the fastener 3, and the groove 9 is designed, when the support seat is clamped in place, the vehicle body air pipe 8 can be butt jointed with the positioning gland 4.

[0042] S3: Connect the inflation pipeline and the air source.

[0043] One end of the transition joint 1 is connected to one end of the inflation pipeline, and the other end of the inflation pipeline is connected to the air source. After the connection is completed, the valve of the air source is slowly opened, and the inflation operation is started.

[0044] In the scheme provided by the embodiment of the application, the positioning cover 4 and the vehicle body air pipe 8 can be quickly and accurately connected, and each component is stably installed, so that the preparation time before air charging and the air charging interruption caused by component problems are reduced, the operator can quickly complete the pipeline connection and start the air charging operation, the total time required for air charging is shortened, the air charging efficiency is improved, and the workload of the operator is reduced.

[0045] The above merely provides the preferred embodiments of the application but is not intended to limit the application. For those skilled in the art, the application can have various modifications and changes. Any modified, equivalent replaced, improved, etc. within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. A pipeline air-charging device, characterized in that, It includes a support base, a positioning cover, and a transition joint. The support base has a hook-shaped structure and a slot for engaging the main air duct fixing seat of the coupler. One end of the support base is connected to the positioning cover, and the transition joint is installed on the side of the positioning cover away from the support base. The transition joint is used to connect the air charging pipeline, and the other side of the positioning cover is used to engage the vehicle body air duct.

2. The pipeline air-charging device according to claim 1, characterized in that, The support base includes two parallel support frames connected by a connecting rod.

3. The pipeline air-charging device according to claim 2, characterized in that, Each support frame has a hook-shaped structure.

4. The pipeline air-charging device according to claim 3, characterized in that, The support frame has a long end and a short end, the long end has a hook, and the short end is used to connect to the positioning cap.

5. A pipeline air-charging device according to claim 1 or 4, characterized in that, The positioning cover is connected to the support base by fasteners.

6. The pipeline air-charging device according to claim 5, characterized in that, The support base is provided with a positioning cylinder for fasteners to pass through.

7. The pipeline air-charging device according to claim 1, characterized in that, A connecting pipe is fixed to one side of the positioning cover, and the connecting pipe is connected to the transition joint. The positioning cap has a groove on the other side to connect with the vehicle body air duct.

8. A pipeline air-charging device according to claim 7, characterized in that, The groove is a circular groove, and the groove is coaxially arranged with the connecting pipe.

9. A method for supplying air to a pipeline, characterized in that, The pipeline air-charging device as described in any one of claims 1-8 includes: The support seat is snapped onto the lower side of the coupler main air duct fixing seat under the car body under the chassis, so that the car body air duct is connected to the positioning cover. Connect the transition connector to the air charging line and turn on the air source to start the air charging operation.

10. A method for supplying air to a pipeline according to claim 9, characterized in that, When the support seat is engaged with the lower side of the coupler main air pipe fixing seat, the lower surface of the coupler main air pipe fixing seat abuts against the bottom surface of the slot, and the hook head of the support seat hooks onto the side of the coupler main air pipe fixing seat.

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