CN210426718U - Connecting device for detecting diaphragm gas meter - Google Patents

Abstract

The scheme discloses a connecting device for detecting a diaphragm gas meter, which belongs to the field of verification equipment and comprises a lifting mechanism, wherein the lifting mechanism comprises a bottom plate, a fixed plate and a fixed cylinder, two support columns are fixed on the bottom plate, the fixed plate is fixedly connected between the two support columns, the fixed cylinder penetrates through the fixed plate and is vertically and slidably connected with the fixed plate, the upper end of the fixed cylinder is fixedly connected with a support plate, a threaded rod is connected with the fixed cylinder through internal threads, the threaded rod is connected with a motor for driving the threaded rod to rotate, and the motor is fixed on the bottom; the two pillars are horizontally provided with through grooves, and the air inlet pipe and the air outlet pipe are respectively clamped in the corresponding through grooves. The gas meter calibrating device in the scheme can conveniently adjust the height of the meter to be calibrated; effectively avoid the problem of pipeline damage.

Description

Connecting device for detecting diaphragm gas meter

Technical Field

The utility model relates to a verification equipment field, in particular to diaphragm type gas table detects uses connecting device.

Background

The outside of the gas meter can only see that the small glass window is provided with a roller with numbers, the roller is also provided with seven digits, the front four digits of the small number are black, and the rear three digits are red. The gas meter has an automatic accumulation function and is mainly used for monitoring the flow of gas such as natural gas or pipeline gas. Therefore, the accuracy of gas meter counting has an important influence on the statistics of the gas meter flow. Before the gas meter is put into use, verification test is generally required to be carried out on the gas meter so as to ensure that the indication error of the gas meter is within an allowable range. At present, two gas meters are mainstream in the market, and one gas meter is a traditional mechanical diaphragm gas meter; the other is a prepaid diaphragm gas meter.

The current cover type gas flow standard device comprises an oil groove, a compensation mechanism, buoyancy compensation, a balance weight, a bell jar, a guide shaft, a longitudinal spherical bearing, a scale, sealing oil and the like. The cover type gas flow standard device has high gas measurement accuracy, so the cover type gas flow standard device is widely used for detecting a gas meter. During detection, the cover type gas flow standard device, the standard line and the line to be detected are respectively communicated in a sealing way through a three-way pipe; the standard circuit comprises a first pipeline, and a first electromagnetic valve, a standard meter and a fan are sequentially connected to the first pipeline; the line to be detected comprises an air inlet pipe and an air outlet pipe, one end of the air inlet pipe is communicated with the three-way pipe, and a second electromagnetic valve is arranged on the air inlet pipe; the other end of the air inlet pipe and one end of the air outlet pipe are respectively communicated with a connector (an air inlet and an air outlet) of the meter to be detected; and a third electromagnetic valve is arranged on the air outlet pipe.

Because the types of the meters to be detected are different, the heights of the connecting ports on the meters to be detected relative to the ground are different; therefore, when the meter to be checked is checked, the installation position needs to be adjusted so that the connecting port of the meter to be checked, the air inlet pipe and the air outlet pipe are located on the same horizontal plane. At present, the main mode of adjusting the height of the meter to be checked is to pad the supporting block at the bottom of the meter to be checked, the supporting block is adjusted to incline easily to cause the height difference between the connecting port of the meter to be checked and the connecting height of the air inlet pipe and the air outlet pipe, the pipeline is broken easily by forced connection, and the measuring result is influenced by the breakage of the pipeline during measurement.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a diaphragm type gas table detects uses connecting device to solve prior art and wait to examine the table height through waiting to examine the table bottom and place the supporting shoe in order to adjust, when leading to waiting to examine the table and being connected with intake pipe, outlet duct, the problem that the pipeline damaged appears easily.

The connecting device for detecting the membrane type gas meter comprises a cover type gas flow standard device, a three-way pipe, a first detection line and a second detection line; the first detection circuit comprises a first pipeline, and a first electromagnetic valve, a standard meter and a fan which are sequentially connected to the first pipeline; the second detection circuit comprises a meter to be detected, an air inlet pipe and an air outlet pipe, the air inlet pipe is connected with a second electromagnetic valve, the air outlet pipe is connected with a third electromagnetic valve, and the air inlet pipe and the air outlet pipe are respectively connected with the air inlet end and the air outlet end of the meter to be detected; the three-way pipe is respectively communicated with the cover type gas flow standard device, the first pipeline and the gas inlet pipe;

the connecting device for detecting the gas meter further comprises a lifting mechanism, wherein the lifting mechanism comprises a bottom plate, a fixed plate and a fixed cylinder, two support columns are fixed on the bottom plate, the fixed plate is fixedly connected between the two support columns, the fixed cylinder penetrates through the fixed plate and is vertically and slidably connected with the fixed plate, the upper end of the fixed cylinder is fixedly connected with a support plate, a threaded rod is connected with an internal thread of the fixed cylinder, the threaded rod is connected with a motor for driving the threaded rod to rotate, and the motor is fixed on the bottom plate; the two pillars are horizontally provided with through grooves, and the air inlet pipe and the air outlet pipe are respectively clamped in the corresponding through grooves.

The working principle and the beneficial effects of the scheme are as follows: when the device is used, a meter to be detected is placed on the support plate, the motor is started, the motor drives the threaded rod to rotate, and the fixed cylinder penetrates through the fixed plate and is vertically and slidably connected with the fixed plate, so that the threaded rod rotates to drive the fixed cylinder in threaded connection to move up and down, and the support plate can be driven to move up and down by the up and down movement of the fixed cylinder until the air inlet end and the air outlet end of the meter to be detected are positioned on the same horizontal plane with the air inlet pipe and; the problem that the detection pipeline is damaged due to height difference when the air inlet pipe or the air outlet pipe is connected with the meter to be detected is avoided. Simultaneously, by rotating the threaded rod, the supporting plate can be controlled to ascend and descend more conveniently.

Further, elevating system still includes branch and connecting rod, connecting rod fixed connection is between solid fixed cylinder and pillar, branch fixed connection is between bottom plate and fixed plate, and branch runs through connecting rod and the vertical sliding connection of connecting rod on branch. The supporting plate can be more stable in the lifting process by the aid of the arrangement, and the table to be checked is prevented from shaking and deviating in the lifting process.

Further, a spring is arranged between the connecting rod and the bottom plate, and the spring is sleeved on the supporting rod in a ring mode. Set up the spring and can play absorbing effect, at the in-process that the solid fixed cylinder rises simultaneously, when the connector of table is being waited to pick up and is close with intake pipe and outlet duct, can play the effect of the rising speed of the solid fixed cylinder that slows down, be convenient for aim at connector and intake pipe and outlet duct.

Furthermore, a graduated scale is arranged on the pillar. The heights of the air inlet pipe, the air outlet pipe and the meter to be detected can be visually seen through the arrangement of the graduated scale; and the accurate adjustment of the height of the table to be checked is more favorably realized.

Drawings

Fig. 1 is the utility model relates to a diaphragm type gas table detects uses connecting device's schematic structure diagram.

Detailed Description

The following is further detailed by the specific embodiments:

reference numerals in the drawings of the specification include: the cover type gas flow standard device comprises a cover type gas flow standard device 1, a three-way pipe 2, a first pipeline 3, a first electromagnetic valve 4, a standard meter 5, a fan 6, a second electromagnetic valve 7, a gas inlet pipe 8, a support column 9, a gas outlet pipe 10, a third electromagnetic valve 11, a bottom plate 12, a support rod 13, a spring 14, a threaded rod 15, a motor 16, a connecting rod 17, a fixed barrel 18, a support plate 19 and a fixed plate 20.

The embodiment is basically as shown in the attached figure 1: a connecting device for detecting a membrane type gas meter comprises a cover type gas flow standard device 1, a three-way pipe 2, a first detection line and a second detection line; the first detection circuit comprises a first pipeline 3, and a first electromagnetic valve 4, a standard meter 5 and a fan 6 which are sequentially connected to the first pipeline 3; the second detection circuit comprises a meter to be detected, an air inlet pipe 8 and an air outlet pipe 10, the air inlet pipe 8 is connected with a second electromagnetic valve 7, the air outlet pipe 10 is connected with a third electromagnetic valve 11, and the air inlet pipe 8 and the air outlet pipe 10 are respectively connected with the air inlet end and the air outlet end of the meter to be detected; the three-way pipe 2 is respectively communicated with the cover type gas flow standard device 1, the first pipeline 3 and the gas inlet pipe 8;

the connecting device for detecting the gas meter further comprises a lifting mechanism, the lifting mechanism comprises a bottom plate 12, a fixing plate 20, a fixing cylinder 18 and two supporting rods 13, two supporting columns 9 are fixed on the bottom plate 12, the fixing plate 20 is fixedly connected between the two supporting columns 9, the fixing cylinder 18 penetrates through the fixing plate 20 and is vertically and slidably connected with the fixing plate 20, a supporting plate 19 is fixedly connected to the upper end of the fixing cylinder 18, a threaded rod 15 is connected to the fixing cylinder 18 in an internal thread mode, the threaded rod 15 is connected with a motor 16 for driving the threaded rod 15 to rotate, and the motor 16 is fixed; connecting rods 17 are fixedly connected to two sides of the fixed cylinder 18, the other ends of the connecting rods 17 are fixedly connected to the supporting columns 9, the two supporting rods 13 penetrate through the two connecting rods 17 respectively and are vertically and slidably connected with the connecting rods 17, springs 14 are fixedly connected between the connecting rods 17 and the bottom plate 12, and the springs 14 are sleeved on the supporting rods 13; the support columns 9 are provided with graduated scales, the two support columns 9 are horizontally provided with through grooves, and the air inlet pipe 8 and the air outlet pipe 10 are respectively clamped in the corresponding through grooves.

When the device is used, a meter to be detected is placed on the support plate 19, the motor 16 is started, the motor 16 drives the threaded rod 15 to rotate, and the fixed cylinder 18 penetrates through the fixed plate 20 and is vertically and slidably connected with the fixed plate 20, so that the threaded rod 15 rotates to drive the fixed cylinder 18 in threaded connection with the threaded rod to move up and down, and the support plate 19 can be driven to move up and down by the aid of the fixed cylinder 18 moving up and down until the air inlet end and the air outlet end of the meter to be detected are positioned on the same horizontal plane with the air inlet; spring 14 can play absorbing effect at the in-process that removes, and because branch 13 runs through on connecting rod 17, and with the vertical sliding connection of connecting rod 17, multiplicable stability reduces the possibility that the lift in-process takes place the skew, has avoided intake pipe 8 or outlet duct 10 and has waited when examining the table and be connected, because the difference in height, leads to examining the impaired problem of pipeline and takes place. Meanwhile, the supporting plate 19 can be controlled to ascend and descend more conveniently by rotating the threaded rod 15.

Claims (4)

1. A connecting device for detecting a membrane type gas meter comprises a cover type gas flow standard device, a three-way pipe, a first detection line and a second detection line; the first detection circuit comprises a first pipeline, and a first electromagnetic valve, a standard meter and a fan which are sequentially connected to the first pipeline; the second detection circuit comprises a meter to be detected, an air inlet pipe and an air outlet pipe, the air inlet pipe is connected with a second electromagnetic valve, the air outlet pipe is connected with a third electromagnetic valve, and the air inlet pipe and the air outlet pipe are respectively connected with the air inlet end and the air outlet end of the meter to be detected; the three-way pipe is respectively communicated with the cover type gas flow standard device, the first pipeline and the gas inlet pipe; the method is characterized in that: the connecting device for detecting the gas meter further comprises a lifting mechanism, wherein the lifting mechanism comprises a bottom plate, a fixed plate and a fixed cylinder, two support columns are fixed on the bottom plate, the fixed plate is fixedly connected between the two support columns, the fixed cylinder penetrates through the fixed plate and is vertically and slidably connected with the fixed plate, the upper end of the fixed cylinder is fixedly connected with a support plate, a threaded rod is connected with an internal thread of the fixed cylinder, the threaded rod is connected with a motor for driving the threaded rod to rotate, and the motor is fixed on the bottom plate; all levels are provided with logical groove on two pillars, intake pipe and outlet duct joint respectively are in the logical inslot that corresponds.

2. The connecting device for detecting a diaphragm gas meter according to claim 1, wherein: the lifting mechanism further comprises a supporting rod and a connecting rod, the connecting rod is fixedly connected between the fixed cylinder and the supporting column, the supporting rod is fixedly connected between the bottom plate and the fixed plate, and the supporting rod penetrates through the connecting rod and is vertically connected to the supporting rod in a sliding mode.

3. The connecting device for detecting a membrane gas meter according to claim 2, characterized in that: a spring is arranged between the connecting rod and the bottom plate, and the spring is sleeved on the supporting rod in a ring mode.

4. The connecting device for detecting a diaphragm gas meter according to claim 3, wherein: and a graduated scale is arranged on the pillar.

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