Absorption resistance standard rod temperature and absolute pressure compensation measuring equipment with closed structure

Abstract

The utility model discloses a draw resistance standard rod temperature and absolute pressure compensation measuring device with a closed structure, a draw resistance standard rod is arranged on a draw resistance rod holder, the device comprises a liftable constant temperature and constant pressure box, the constant temperature and constant pressure box comprises a box body and a box door, the draw resistance rod holder provided with the draw resistance standard rod is arranged in the box body, and the box door is arranged on the box body. A temperature sensor and a pressure sensor are arranged in the box body, an air valve is arranged at an air inlet in the top of the box body and externally connected with a constant-pressure air source system through an air pipe, a heating device is arranged on one side of the box body, and a heating air pipe of the heating device is communicated with a heating opening formed in the side wall of the box body. Compared with the prior art, the draw resistance measuring device has the advantages that the constant-temperature and constant-pressure box is arranged, and the draw resistance rod holder provided with the draw resistance standard rod is placed in the box body, so that a constant-temperature and constant-pressure environment is provided for the draw resistance standard rod, and the influence of temperature and pressure changes on draw resistance measurement is avoided; and the accuracy and reliability of draw resistance measurement are ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to cigarette production detection equipment technical field especially relates to a kind of temperature, absolute pressure compensation determination equipment of suction resistance standard stick with closed structure. BACKGROUND

[0002] Suction resistance standard stick is the standard piece matched with cigarette and filter rod physical performance comprehensive test platform, to ensure the accuracy and reliability of suction resistance measurement, suction resistance standard stick needs to be used to calibrate and verify cigarette and filter rod physical performance comprehensive test platform, suction resistance standard stick accurately transmits value to cigarette and filter rod comprehensive test platform, and then the value is transmitted to cigarette, and the accuracy of suction resistance standard stick value directly determines the reliability of cigarette suction resistance measurement result, but because environmental temperature and atmospheric pressure are constantly changing, so it will affect the accuracy and reliability of suction resistance measurement. SUMMARY

[0003] The utility model discloses a kind of suction resistance standard stick temperature, absolute pressure compensation determination equipment with closed structure, to overcome the deficiency of prior art, ensure the accuracy and reliability of suction resistance measurement.

[0004] The utility model is implemented by the following technical solutions:

[0005] A kind of suction resistance standard stick temperature, absolute pressure compensation determination equipment with closed structure, suction resistance standard stick is installed on suction resistance stick holder, the equipment includes constant temperature and constant pressure box that can be lifted, constant temperature and constant pressure box includes box and the box door that can be opened or closed at the front side of box, suction resistance stick holder with suction resistance standard stick is placed in the inside of box, temperature sensor and pressure sensor are equipped in the inside of box, the gas inlet of the top of box is equipped with gas valve, gas valve is connected with constant pressure gas source system by gas pipe, one side of box is equipped with heating device, the heating gas pipe of heating device is connected with the heating port opened in the side wall of box.

[0006] As the preferred scheme of the above equipment, the bottom of the constant temperature and constant pressure box is supported on the bottom plate by lifting device, and the lifting device includes a lifting cylinder arranged on the bottom plate, the piston rod of the lifting cylinder extends vertically upward and is connected with the bottom of the constant temperature and constant pressure box.

[0007] As the preferred scheme of the above equipment, four groups of guide assemblies are arranged between the bottom of the constant temperature and constant pressure box and the bottom plate, and the four groups of guide assemblies are located at the periphery of the lifting cylinder, each guide assembly includes a guide sleeve and a guide rod that are vertically slidably connected, the guide sleeve is fixed on the bottom plate, and the guide rod is fixed on the bottom of the constant temperature and constant pressure box.

[0008] As the preferred scheme of the above equipment, a wear-resistant layer is arranged on the bottom of the bottom plate.

[0009] As the preferred scheme of the above device, four forward extending studs are arranged on the front side of the box body, four through holes are arranged on the box door, and the four studs are correspondingly arranged through the four through holes on the box door and screwed with nuts to realize the locking installation of the box door and the box body.

[0010] As the preferred scheme of the above device, a sealing gasket is arranged between the box door and the box body.

[0011] As the preferred scheme of the above device, the suction resistance standard rod holder comprises upper and lower holding blocks, a lower sealing ring is arranged in a placing hole at the top of the lower holding block, and an upper sealing ring is arranged in a placing hole at the bottom of the upper holding block, the lower end of the suction resistance standard rod is inserted into the lower sealing ring in the placing hole at the top of the lower holding block, and the upper end of the suction resistance standard rod is inserted into the upper sealing ring in the placing hole at the bottom of the upper holding block.

[0012] Compared with the prior art, the device has the following advantages:

[0013] The suction resistance standard rod temperature and absolute pressure compensation measuring device with the closed structure has the advantages that the suction resistance standard rod holder with the installed suction resistance standard rod is placed in the box body, a constant temperature and constant pressure environment is provided for the suction resistance standard rod, the influence of temperature and pressure changes on the suction resistance measurement is avoided, and the accuracy and reliability of the suction resistance measurement are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 is a structural schematic view of the box body of the device.

[0015] Fig. 2 is a structural schematic view of the box body of the device.

[0016] Fig. 3 is a structural schematic view of the bottom plate and the lifting device of the device.

[0017] Fig. 4 is a three-dimensional explosion view of the suction resistance standard rod and the suction resistance standard rod holder of the device.

[0018] In the drawing, 1 is a suction resistance standard rod, 2 is a box body, 3 is a box door, 4 is a temperature sensor, 5 is a pressure sensor, 6 is a gas valve, 7 is a heating device, 8 is a heating gas pipe, 9 is a bottom plate, 10 is a lifting gas cylinder, 11 is a wear-resistant layer, 12 is a guide sleeve, 13 is a guide rod, 14 is a stud, 15 is a through hole, 16 is a lower holding block, 17 is a lower sealing ring, 18 is an upper holding block, 19 is an upper sealing ring, 20 is an air inlet connector, and 21 is a through hole. DETAILED DESCRIPTION

[0019] The embodiments of the utility model are described in detail below, and the embodiments are implemented on the premise of the technical scheme of the utility model, detailed implementation modes and specific operation processes are given, but the protection scope of the utility model is not limited to the following embodiments.

[0020] Referring to Figs. 1 to 4 The embodiment discloses a kind of temperature and absolute pressure compensation determination equipment of suction resistance standard stick with closed structure, suction resistance standard stick 1 is installed on suction resistance stick holder, equipment includes constant temperature and constant pressure box that can be lifted, constant temperature and constant pressure box includes box 2 and the box door 3 that can be opened or closed at the front side of box 2, suction resistance stick holder with suction resistance standard stick 1 is placed in the inside of box 2, temperature sensor 4 and pressure sensor 5 are equipped in the inside of box 2, air inlet in the top of box 2 is equipped with gas valve 6, gas valve 6 is connected with constant pressure gas source system by gas pipe, wherein, constant pressure gas source system can adopt intelligent pressure controller to realize the constant control of pressure.Box 2 side is equipped with heating device 7, heating gas pipe 8 of heating device 7 is connected with heating port opened in the side wall of box 2, wherein, heating device 7 can adopt semiconductor temperature controller to realize the control to the air temperature that is passed into the box 2.

[0021] Constant temperature and constant pressure box bottom is supported on bottom plate 9 by lifting device, lifting device includes lifting cylinder 10 arranged on bottom plate 9, the piston rod of lifting cylinder 10 extends vertically upwards and is connected with the bottom of constant temperature and constant pressure box, bottom plate 9 bottom is equipped with a wear-resistant layer 11.Constant temperature and constant pressure box bottom and bottom plate 9 are equipped with by four groups of guide components, four groups of guide components are located in the periphery of lifting cylinder 10, and each group of guide components includes vertically slidingly fitted guide sleeve 12 and guide rod 13, guide sleeve 12 is fixed on bottom plate 9, and guide rod 13 is fixed on the bottom of constant temperature and constant pressure box.The piston rod of lifting cylinder 10 is retracted, so as to drive constant temperature and constant pressure box to lift to the height suitable for operator to operate.By setting four groups of guide components, the vertical lifting of constant temperature and constant pressure box is guided.

[0022] The front side of box 2 is equipped with four forwardly extending studs 14, the box door 3 is provided with four through holes 15, the four studs 14 pass through the four through holes 15 on the box door 3 one by one and are screwed with nuts, to realize the locking installation of the box door 3 and the box 2.A layer of sealing gasket is arranged between the box door 3 and the box 2 to seal the gap between the box door 3 and the box 2.

[0023] The suction resistance standard stick holder comprises upper and lower holding blocks, a lower sealing ring 17 is arranged in the placement hole at the top of the lower holding block 16, and an upper sealing ring 19 is arranged in the placement hole at the bottom of the upper holding block 18, the lower end of the suction resistance standard stick 1 is inserted into the lower sealing ring 17 in the placement hole at the top of the lower holding block 16, and the upper end of the suction resistance standard stick 1 is inserted into the upper sealing ring 19 in the placement hole at the bottom of the upper holding block 18. The air vent joint 20 at one side of the upper holding block 18 is used for connecting a calibration gas pipeline, and the box door 3 is provided with a through hole 21 for the calibration gas pipeline to pass through.

[0024] In use, the upper and lower ends of the suction resistance standard stick 1 are respectively inserted into the upper and lower holding blocks, then the box door 3 is opened, the suction resistance standard stick holder with the suction resistance standard stick 1 installed is placed in the box body 2, the calibration gas pipeline is connected with the air vent joint 20 at one side of the upper holding block 18 after passing through the through hole 21 in the box door 3, and then the box door 3 is closed. The air valve 6 is opened, the constant pressure gas source system and the heating device 7 are started, constant pressure gas and constant temperature air are introduced into the box body 2, and the pressure and temperature in the box body 2 are monitored in real time through the temperature sensor 4 and the pressure sensor 5 in the box body 2, so that the pressure and temperature in the box body 2 are kept in the set temperature and pressure range, a constant temperature and pressure environment is provided for the suction resistance standard stick 1, and the accuracy and reliability of the suction resistance measurement are ensured.

[0025] The above is only a preferred embodiment of the present application, and is not used to limit the present application, and any modification, equivalent replacement and improvement within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A temperature and absolute pressure compensation measuring device for a suction resistance standard rod with a sealed structure, wherein the suction resistance standard rod is mounted on a suction resistance rod holder, and is characterized by: The equipment includes a constant temperature and pressure box that can be raised and lowered. The constant temperature and pressure box includes a box body and a box door located on the front side of the box body that can be opened or closed. A resistance rod holder equipped with a resistance absorption standard rod is placed inside the box body. A temperature sensor and a pressure sensor are provided inside the box body. An air valve is provided at the air inlet on the top of the box body. The air valve is connected to a constant pressure air source system through an air pipe. A heating device is provided on one side of the box body. The heating air pipe of the heating device is connected to a heating port opened on the side wall of the box body.

2. The temperature and absolute pressure compensation measuring device for a standard rod of absorption resistance with a sealed structure according to claim 1, characterized in that: The bottom of the constant temperature and constant pressure box is supported on the bottom plate by a lifting device. The lifting device includes a lifting cylinder arranged on the bottom plate. The piston rod of the lifting cylinder extends vertically upward and is connected to the bottom of the constant temperature and constant pressure box.

3. The temperature and absolute pressure compensation measuring device for a standard rod of absorption resistance with a sealed structure as claimed in claim 2, characterized in that: Four sets of guide assemblies are provided between the bottom and the base plate of the constant temperature and pressure box. The four sets of guide assemblies are located outside the lifting cylinder. Each set of guide assemblies includes a guide sleeve and a guide rod that are vertically slidably matched. The guide sleeve is fixed on the base plate, and the guide rod is fixed on the bottom of the constant temperature and pressure box.

4. The temperature and absolute pressure compensation measuring device for a standard rod of absorption resistance with a sealed structure according to claim 2, characterized in that: A wear-resistant layer is provided at the bottom of the base plate.

5. The temperature and absolute pressure compensation measuring device for a standard rod of absorption resistance with a sealed structure according to claim 1, characterized in that: The front side of the box body is provided with four studs extending forward, and the box door is provided with four through-holes. The four studs pass through the four through-holes on the box door in a one-to-one correspondence and tighten the nuts to achieve locking installation of the box door and the box body.

6. The temperature and absolute pressure compensation measuring device for a standard rod of absorption resistance with a sealed structure according to claim 5, characterized in that: A sealing gasket is provided between the box door and the box body.

7. The temperature and absolute pressure compensation measuring device for a standard rod of absorption resistance with a sealed structure according to claim 1, characterized in that: The resistance absorption rod holder includes two upper and lower holding blocks. A lower sealing ring is provided in the placement hole at the top of the lower holding block, and an upper sealing ring is provided in the placement hole at the bottom of the upper holding block. The lower end of the resistance absorption standard rod is inserted into the lower sealing ring of the placement hole at the top of the lower holding block, and the upper end of the resistance absorption standard rod is inserted into the upper sealing ring of the placement hole at the bottom of the upper holding block.

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