CN218719677U - Natural gas engine exhaust pipe mouth of pipe plugging device - Google Patents

Abstract

The utility model relates to a natural gas engine blast pipe mouth of pipe plugging device belongs to natural gas engine check out test set technical field, comprising a base plate, a column, the roof, a pedestal, anchor clamps, the cylinder, connecting plate and baffle, stand fixed connection is on the bottom plate, roof fixed connection is at the stand top, base fixed connection is on the bottom plate, anchor clamps press from both sides the blast pipe bottom tightly on the base, the connecting plate is located the roof top, the baffle is located the roof below, connecting plate bottom fixedly connected with guide bar, guide bar and roof sliding connection, connecting plate bottom fixedly connected with connecting rod, the connecting rod passes the roof and can dismantle with the baffle to be connected, it is equipped with the spring to lie in on the connecting rod between roof and the baffle, cylinder fixed connection is in the connecting plate bottom, the overhead end cap that is connected with of cylinder expansion, when the end cap is sealed not tight among the prior art, the end cap increases the shutoff dynamics, the problem of blast pipe atress bending deformation.

Description

Natural gas engine exhaust pipe mouth of pipe plugging device

Technical Field

The utility model belongs to the technical field of natural gas engine check out test set, concretely relates to natural gas engine blast pipe mouth of pipe plugging device.

Background

The natural gas engine exhaust pipe is a cylindrical elongated part with an inclined middle part, after the exhaust pipe is produced, leakage test detection needs to be carried out on the exhaust pipe, the exhaust pipe is vertically clamped on a detection table, the bottom of the exhaust pipe is sealed, the top of the exhaust pipe is sealed in a mode that a telescopic cylinder drives a plug to move downwards, then leakage test detection is carried out, due to the fact that the plug is at a certain distance away from the pipe orifice of the exhaust pipe, the plug can be not tightly sealed after falling for a preset distance due to installation accuracy and other reasons, at the moment, if plugging force is increased, the plug moves downwards, due to the fact that the supporting force at the bottom of the exhaust pipe and the plugging force at the top of the exhaust pipe are not on the same straight line, the exhaust pipe is subjected to supporting force and pressure, and the inclined part in the middle of the exhaust pipe can be subjected to bending deformation, therefore, a plugging device needs to be designed, and tight plugging is guaranteed while bending deformation of the exhaust pipe is avoided.

SUMMERY OF THE UTILITY MODEL

The utility model provides a natural gas engine blast pipe mouth of pipe plugging device has solved among the prior art when the end cap is sealed not tight, increases end cap shutoff dynamics, blast pipe atress bending deformation's problem. According to an aspect of the utility model, this application provides natural gas engine blast pipe mouth of pipe plugging device, comprising a base plate, a column, the roof, a pedestal, anchor clamps, the cylinder, connecting plate and baffle, stand fixed connection is on the bottom plate, roof fixed connection is at the stand top, base fixed connection is on the bottom plate, anchor clamps press from both sides the blast pipe bottom tightly on the base, the connecting plate is located the roof top, the baffle is located the roof below, connecting plate bottom fixedly connected with guide bar, guide bar and roof sliding connection, connecting plate bottom fixedly connected with connecting rod, the connecting rod passes the roof and can dismantle with the baffle to be connected, it is equipped with the spring to lie in on the connecting rod between roof and the baffle, cylinder fixed connection is in the connecting plate bottom, be connected with the end cap on the flexible head of cylinder.

Furthermore, the cross sections of the bottom plate and the top plate are rectangular, the number of the stand columns is four, and the stand columns are symmetrically and fixedly connected to the four corners of the bottom plate.

Further, the connecting plate is the rectangular plate, and the quantity of connecting rod is four, and symmetry fixed connection is in connecting plate bottom four corners department, and the cylinder is located connecting plate bottom central point and puts, and the quantity of guide bar is two, and symmetry fixed connection is in the cylinder left and right sides.

Furthermore, a first through hole is formed in the position, corresponding to the air cylinder, of the top plate, a guide sleeve is arranged on the top plate and is connected with the guide rod in a sliding mode, and the plug is located right above the pipe orifice of the exhaust pipe.

Furthermore, the front of baffle is equipped with the U-shaped opening that is used for holding the blast pipe, and both sides all can be dismantled to the U-shaped opening top and are connected with the gasket.

The utility model has the advantages that:

the utility model provides a natural gas engine blast pipe mouth of pipe plugging device, comprising a base plate, a column, the roof, a pedestal, a fixture, a cylinder, connecting plate and baffle, through fixing the cylinder in the connecting plate bottom, connecting plate bottom fixedly connected with connecting rod, the connecting rod passes the roof and can dismantle with the baffle and be connected, it is equipped with the spring to lie in the cover between roof and the baffle on the connecting rod, such structural design makes the connecting plate upward movement when the flexible head of cylinder extends downwards, and then drive baffle upward movement through the connecting rod, spring pressurized this moment, ascending pulling force becomes the elasticity of spring, be connected with the end cap on the flexible head of cylinder, the end cap is directly over with being located the blast pipe mouth of pipe, after the gasket on the baffle contacts with the blast pipe mouth, the blast pipe mouth of pipe is plugged up to the end cap, if it is not tight sealed this moment, continue to increase the dynamics, end cap downstream, give the decurrent pressure of blast pipe, the gasket provides ascending holding power, pressure and holding power are on same straight line, and the stress point is located blast pipe mouth of pipe department, blast pipe's not atress like this, thereby blast pipe middle slope part atress bending deformation has been avoided, the connecting plate passes through the guide bar and is connected with the roof, the cylinder is guaranteed the design of cylinder downstream, the precision of guide bar, the precision of sealing has improved.

Drawings

FIG. 1: the front view of the exhaust pipe orifice plugging device in the prior art;

FIG. 2: the front view of the utility model;

FIG. 3: the structure of the utility model is shown schematically;

FIG. 4 is a schematic view of: the structure of the baffle plate in the utility model is shown schematically;

FIG. 5: the utility model discloses the structure schematic diagram of well gasket.

Reference numerals: the device comprises a bottom plate 1, a stand column 2, a top plate 3, a base 4, a clamp 5, a cylinder 6, a connecting plate 7, a baffle plate 8, a telescopic cylinder 9, an exhaust pipe 10, a connecting rod 11, a pressure plate 12, a guide rod 13, a plug 14, a guide sleeve 15, a spring 16, a gasket 17 and a support rod 18.

Detailed Description

It should be noted that, as shown in fig. 1, in the prior art, an air cylinder 6 is vertically fixed downward at the top of a top plate 3, a through hole for a telescopic head of the air cylinder 6 to pass through is formed in the top plate 3, a screw rod is welded to the telescopic head, a plug 14 is connected to one end of the screw rod, the telescopic head of the air cylinder 6 extends downward to plug a pipe orifice of an exhaust pipe 10, but due to reasons such as installation accuracy and height error of the exhaust pipe, when the plug 14 moves downward to a predetermined distance, a situation of untight sealing occurs between the plug 14 and the pipe orifice of the exhaust pipe 10, which affects leakage test detection, at this time, the plug 14 needs to move downward continuously, but due to downward pressure of the plug 14 and upward supporting force provided by a base 4 are not on the same straight line, and due to an inclined portion in the exhaust pipe 10, at this time, the exhaust pipe 10 is stressed, and the exhaust pipe 10 is bent and deformed.

To further illustrate the technical means and effects of the present invention adopted to achieve the intended purpose, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.

According to fig. 2 and 3, the plugging device for the exhaust pipe orifice of the natural gas engine comprises a bottom plate 1, a vertical column 2, a top plate 3, a base 4, a clamp 5, a cylinder 6, a connecting plate 7 and a baffle plate 8.

Specifically, the structure of bottom plate 1 and roof 3 is the same completely, is the rectangular plate, and the quantity of stand 2 is four, and the bottom of stand 2 is equipped with the screw hole, through bolt one with stand 2 fixed connection in 1 four corners department of bottom plate, stand 2 be step shaft one, is equipped with the screw thread at step shaft top, corresponds stand 2 department on the roof 3 and is equipped with the connecting hole, through nut one with roof 3 fixed connection at stand 2 tops.

Specifically, the base 4 is connected to the bottom plate 1 through bolts, the clamp 5 is a pneumatic clamp and comprises a telescopic cylinder 9, a pressing plate 12 and a supporting rod 18, and a telescopic head of the telescopic cylinder 9 moves upwards to drive the pressing plate 12 to clamp the bottom of the exhaust pipe 10 on the base 4 through a lever principle.

Specifically, connecting plate 7 is the rectangular plate, connecting plate 7 is located roof 3 top, the quantity of connecting rod 11 is four, connecting rod 11 is step shaft two, including stub end and microcephaly end, stub end top bolted connection is in connecting plate 7 bottom four corners department, stub end bottom is when cylinder 6 motionless, support at roof 3 top, microcephaly end passes roof 3 and is connected with baffle 8, 6 bolted connection of cylinder is put at connecting plate 7 bottom central point, be connected with end cap 14 on the flexible overhead end of cylinder 6, end cap 14 is located the blast pipe 10 mouth of pipe directly over, 7 bottoms of connecting plate are located 6 left and right sides departments of cylinder and all weld guide bar 13.

Specifically, a first through hole is formed in the position, corresponding to the cylinder 6, of the top plate 3, a guide sleeve 15 is arranged on the top plate 3, and the guide sleeve 15 is connected with the guide rod 13 in a sliding mode.

Specifically, as shown in fig. 4 and 5, the cross-section of baffle 8 is the rectangle, baffle 8's front is equipped with the U-shaped opening that is used for holding blast pipe 10, the equal bolted connection in U-shaped opening top left and right sides has gasket 17, baffle 8 is located roof 3 below, baffle 8 passes through nut two to be connected on connecting rod 11, connecting rod 11's microcephaly end is located between roof 3 and the baffle 8, the cover is equipped with spring 16 on connecting rod 11's microcephaly end, spring 16's bottom supports the top at baffle 8, spring 16's top supports the bottom at roof 3.

In actual operation, the exhaust pipe 10 is positioned on the base 4 through a bolt, the top of the exhaust pipe 10 is located in a U-shaped opening of the baffle plate 8, then a first switch of the telescopic cylinder 9 is opened, a telescopic head of the telescopic cylinder 9 moves upwards to drive the other end of the pressing plate 12 to press downwards, the exhaust pipe 10 is pressed on the base 4 through a lever principle, then a switch of the cylinder 6 is opened, the telescopic head drives the plug 14 to move downwards, the cylinder 6 pushes the connecting plate 7 to move upwards along the guide rod 13, the baffle plate 8 is driven to move upwards through the connecting rod 11, the spring 16 is pressed, when the plug 14 moves to the upper portion of the pipe orifice of the exhaust pipe 10, the gasket 11 abuts against the lower portion of the pipe orifice of the exhaust pipe 10, at the moment, if the sealing performance is good, the test leakage detection is started, at the moment, if the sealing performance is not good, the force continues to be increased, the plug 14 moves downwards, at the moment, the plug 14 provides downward pressure to the pipe orifice of the exhaust pipe 10, the baffle plate 8 provides upward supporting force to the pipe orifice of the exhaust pipe 10 through the gasket 17, the pressure and the supporting force and the support of the pipe orifice 10 is prevented from being completely inclined, and the exhaust pipe 10 is prevented from being deformed.

It should be noted that in this application, where the context requires no explicit mention, the use of directional terms such as "upper, lower, top, bottom" is generally with respect to the orientation shown in the drawings, or with respect to the component itself in a vertical, perpendicular or gravitational direction; likewise, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the profile of the components themselves, but the above directional words are not intended to limit the invention.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed by the preferred embodiment, it is not limited to the present invention, and any person skilled in the art can make modifications or changes equivalent to the equivalent embodiments by utilizing the above disclosed technical contents without departing from the technical scope of the present invention, but all the modifications, changes and changes of the technical spirit of the present invention made to the above embodiments are also within the scope of the technical solution of the present invention.

Claims (5)

1. Natural gas engine blast pipe mouth of pipe plugging device, comprising a base plate, the stand, the roof, a pedestal, anchor clamps and cylinder, stand fixed connection is on the bottom plate, roof fixed connection is at the stand top, base fixed connection is on the bottom plate, anchor clamps press from both sides the blast pipe bottom tightly on the base, a serial communication port, still include connecting plate and baffle, the connecting plate is located the roof top, the baffle is located the roof below, connecting plate bottom fixedly connected with guide bar, guide bar and roof sliding connection, connecting plate bottom fixedly connected with connecting rod, the connecting rod passes the roof and can dismantle with the baffle and be connected, it is equipped with the spring to lie in on the connecting rod between roof and the baffle, cylinder fixed connection is in the connecting plate bottom, be connected with the end cap on the flexible head of cylinder.

2. The natural gas engine exhaust pipe orifice plugging device of claim 1, wherein the cross sections of the bottom plate and the top plate are rectangular, the number of the stand columns is four, and the stand columns are symmetrically and fixedly connected to four corners of the bottom plate.

3. The plugging device for the exhaust pipe orifice of the natural gas engine according to claim 1, wherein the connecting plate is a rectangular plate, the number of the connecting rods is four, the connecting rods are symmetrically and fixedly connected to four corners of the bottom of the connecting plate, the cylinder is located at the center of the bottom of the connecting plate, the number of the guide rods is two, and the connecting rods are symmetrically and fixedly connected to the left side and the right side of the cylinder.

4. The natural gas engine exhaust pipe orifice blocking device as claimed in claim 1, wherein a first through hole is formed in the top plate corresponding to the cylinder, a guide sleeve is arranged on the top plate, the guide sleeve is slidably connected with the guide rod, and the plug is located right above the exhaust pipe orifice.

5. The device for plugging the nozzle of the exhaust pipe of the natural gas engine as claimed in claim 1, wherein the front surface of the baffle is provided with a U-shaped opening for accommodating the exhaust pipe, and gaskets are detachably connected to the left side and the right side above the U-shaped opening.

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