Anti-leakage air permeability flow disc integrated measuring device

Abstract

The utility model discloses a leakproof air permeability flow disc integrated measuring device, which comprises a rack, a lower chuck is fixed on the rack, an upper chuck is arranged above the lower chuck, the upper chuck is fixed on a cross beam, guide rods are fixed at two ends of the cross beam, the guide rods move up and down along the rack, and the cross beam is fixed on the rack. The lower end of the guide rod is connected with a hydraulic cylinder, the hydraulic cylinder is connected with a hydraulic pump through a valve group module, the valve group module comprises an overflow valve, and the valve group module is connected with an oil tank. Compared with the prior art, the hydraulic cylinder drives the guide rod to slide downwards, so that the cross beam drives the upper chuck to slide downwards, automatic clamping of the air permeability flow disc is achieved, and the air permeability flow discs of different specifications can be clamped with the same pressure through the arrangement of the overflow valve. The whole structure is simple, operation is easy, and the clamping effect of the air permeability flow disc is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to a ventilation degree flow disc measurement technical field especially to a kind of leakage-proof ventilation degree flow disc integrated measuring device. BACKGROUND

[0002] Tobacco special ventilation degree flow disc is the standard appliance used on tobacco paper permeability measuring instrument. It is through the value transmission of ventilation degree flow disc to tobacco paper permeability measuring instrument to ensure the measurement accuracy of permeability measuring instrument. The accuracy of ventilation degree flow disc transmission value needs to be realized by the verification of ventilation degree flow disc. The patent with announcement number CN102519559B discloses a kind of tobacco special ventilation degree flow disc verification fixed device, including the upper base and lower base fixed on rack respectively, the upper locating block with central through hole is connected to the upper base, and can be turned up around the turnover shaft pin, the lower locating block with central through hole is installed on the lower base, and the upper surface of the lower locating block is provided with cylindrical sink, the upper locating block and the lower locating block can be placed the flow disc to be tested, the pressure measuring port is opened in the side wall of the upper locating block and the lower locating block and is communicated with the central through hole of corresponding locating block, and the sealing ring is arranged on the lower cooperation surface of the upper locating block and the upper cooperation surface of the lower locating block. The fixed device is fixed together by manual elbow clamp, and the upper locating block is hinged on the upper base. When facing ventilation degree flow disc of different thickness, it is difficult to realize constant-pressure clamping. UTILITY MODEL CONTENTS

[0003] The utility model provides a kind of leakage-proof ventilation degree flow disc integrated measuring device to solve the problem that the existing measuring device is difficult to realize constant-pressure clamping when facing ventilation degree flow disc of different thickness.

[0004] The utility model provides a kind of leakage-proof ventilation degree flow disc integrated measuring device, including rack, the lower chuck is fixed on the rack, the upper chuck is equipped with the upper side of the lower chuck, the upper chuck is fixed in crossbeam, the both ends of the crossbeam are all fixed with guide rod, the guide rod moves up and down along rack, the lower end of the guide rod is connected with hydraulic cylinder, the hydraulic cylinder is connected with hydraulic pump by valve group module, the valve group module includes overflow valve, the valve group module is connected with oil tank.

[0005] Preferably, the upper end of the lower chuck is provided with a positioning groove.

[0006] Preferably, the side of the lower chuck and the upper chuck opposite each other is provided with a sealing ring.

[0007] Preferably, the rack includes a machine case, the guide rod is slidingly connected with the upper panel of the machine case, the hydraulic pump, the hydraulic cylinder, the valve group module and the oil tank are all arranged in the machine case.

[0008] Preferably, the cabinet is provided with a connecting plate, two ends of the connecting plate are fixed with two guide rods respectively, and the piston rod of the hydraulic cylinder is fixed below the connecting plate.

[0009] Preferably, four connecting rods are fixed in the cabinet, the lower end of the connecting rod is fixed with a mounting plate, the piston rod of the hydraulic cylinder is fixed with the connecting plate through the mounting plate, and the hydraulic cylinder is fixed on the mounting plate.

[0010] Preferably, the hydraulic pump is arranged below the hydraulic cylinder, the oil tank and the hydraulic pump are mounted on the bottom of the cabinet, and the valve group module is arranged above the oil tank.

[0011] Preferably, the valve group module comprises a check valve and a reversing valve, the check valve and the reversing valve are arranged on a pipeline between the hydraulic pump and the hydraulic cylinder, the overflow valve is connected with the pipeline between the check valve and the reversing valve through a pipeline, and the liquid outlet of the overflow valve is connected with the oil tank through a pipeline.

[0012] Preferably, the liquid outlet of the check valve is connected with a filter through a pipeline, and the filter is connected with the reversing valve and the overflow valve through pipelines respectively.

[0013] Preferably, a throttle valve is arranged on the pipeline between the oil suction port of the hydraulic pump and the oil tank.

[0014] Compared with the prior art, in the utility model, the guide rod driven by the hydraulic cylinder slides downward, so that the upper clamping disc is driven to slide downward through the cross beam, automatic clamping of the air permeability flow disc is realized, even if different specifications of air permeability flow discs are faced, the air permeability flow disc can be clamped at the same pressure through the setting of the overflow valve. The overall structure is simple, the operation is simple, and the clamping effect of the air permeability flow disc is good. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are some embodiments of the utility model, and for ordinary skilled in the art, other drawings can be obtained according to these drawings without creative labor.

[0016] Figure 1 It is a structural schematic view of the utility model;

[0017] Figure 2 It is a partial structural schematic view of the utility model;

[0018] Figure 3 It is a hydraulic principle view of the utility model.

[0019] Signs:

[0020] 1. frame, 2. lower clamp plate, 3. upper clamp plate, 4. crossbeam, 5. guide rod, 6. hydraulic cylinder, 7. hydraulic pump, 8. overflow valve, 9. oil tank, 10. connecting plate, 11. connecting rod, 12. mounting plate, 13. one-way valve, 14. reversing valve, 15. filter, 16. throttle valve, 17. air permeability flow disc, 011. machine box, 021. positioning groove, 100. valve group module. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the utility model more clear, the technical scheme in the utility model will be clearly and completely described below in combination with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

[0022] Referring to the drawings Figure 1 and the drawings Figure 2 , the embodiment provides a kind of leakage-proof air permeability flow disc integrated measuring device, including frame 1, frame 1 is fixed with lower clamp plate 2, the upper side of lower clamp plate 2 is equipped with upper clamp plate 3, upper clamp plate 3 is fixed on crossbeam 4, the both ends of crossbeam 4 are fixed with guide rod 5, guide rod 5 is slidably connected with frame 1, guide rod 5 moves up and down along frame 1, the lower end of guide rod 5 is connected with hydraulic cylinder 6, hydraulic cylinder 6 is used to drive guide rod 5 to move up and down, hydraulic cylinder 6 is connected with hydraulic pump 7 by valve group module 100, valve group module 100 includes overflow valve 8, valve group module 100 is connected with oil tank 9, upper clamp plate 3 and lower clamp plate 2 are equipped with cavity, air permeability flow disc 17 is located between upper clamp plate 3 and lower clamp plate 2, upper clamp plate 3 is equipped with gas outlet pipe, lower clamp plate 2 is equipped with gas inlet pipe.The utility model is set by overflow valve 8, even if facing different specifications air permeability flow disc 17, can also realize with same pressure clamping air permeability flow disc 17.Overall simple structure, can realize the automatic clamping of air permeability flow disc 17 and keep constant pressure by overflow valve 8.

[0023] Specifically, upper clamp plate 3 is fixed with crossbeam 4 by screw rod, and guide rod 5 is threadedly connected with nut after passing through crossbeam 4.

[0024] As another embodiment of the utility model: the upper end of lower clamp plate 2 is equipped with positioning groove 021, and the lower end of air permeability flow disc 17 is installed in positioning groove 021.

[0025] As another embodiment of the utility model: the side of lower clamp plate 2 and upper clamp plate 3 opposite each other is equipped with sealing ring, to prevent air leakage on the upper and lower sides of air permeability flow disc 17.

[0026] As another implementation form of the utility model: the rack 1 includes the case 011, the guide rod 5 is connected with the upper panel of the case 011 and is provided with a linear bearing between the guide rod 5 and the upper panel of the case 011, the hydraulic pump 7, the hydraulic cylinder 6, the valve group module 100 and the oil tank 9 are all arranged in the case 011, and the structural design can effectively improve safety.

[0027] As another implementation form of the utility model: the case 011 is provided with a connecting plate 10, both ends of the connecting plate 10 are fixed with two guide rods 5, specifically, the guide rod 5 is screwed with a nut after penetrating through the connecting plate 10, and the piston rod of the hydraulic cylinder 6 is fixed below the connecting plate 10.

[0028] As another implementation form of the utility model: four connecting rods 11 are fixed in the case 011, the lower end of the connecting rod 11 is fixed with a mounting plate 12, the mounting plate 12 is located below the connecting plate 10, the piston rod of the hydraulic cylinder 6 is fixed with the connecting plate 10 after penetrating through the mounting plate 12, the piston rod of the hydraulic cylinder 6 is slidably connected with the mounting plate 12, the hydraulic cylinder 6 is fixed on the mounting plate 12, the four connecting rods 11 are divided into two groups, and the connecting plate 10 is arranged between the two groups of connecting rods 11.

[0029] Specifically, the connecting rod 11 is screwed with a nut after penetrating through the mounting plate 12.

[0030] As another implementation form of the utility model: the hydraulic pump 7 is arranged below the hydraulic cylinder 6, the oil tank 9 and the hydraulic pump 7 are both mounted on the bottom of the case 011, and the valve group module 100 is arranged above the oil tank 9.

[0031] As another implementation form of the utility model: referring to the accompanying drawings Figure 3 The valve group module 100 includes a one-way valve 13 and a reversing valve 14, the one-way valve 13 and the reversing valve 14 are arranged on the pipeline between the hydraulic pump 7 and the hydraulic cylinder 6, the liquid outlet of the one-way valve 13 is connected with the reversing valve 14, the overflow valve 8 is connected with the pipeline between the one-way valve 13 and the reversing valve 14 through the pipeline, the liquid outlet of the overflow valve 8 is connected with the oil tank 9 through the pipeline, and the reversing valve 14 is connected with the oil tank 9 through the pipeline.

[0032] As another implementation form of the utility model: the liquid outlet of the one-way valve 13 is connected with a filter 15 through the pipeline, and the filter 15 is connected with the reversing valve 14 and the overflow valve 8 through the pipeline. Specifically, the filter 15 is a high-pressure filter.

[0033] As another implementation form of the utility model: a throttle valve 16 is arranged on the pipeline between the oil suction port of the hydraulic pump 7 and the oil tank 9, an oil suction filter is arranged on the pipeline from the throttle valve 16 to the oil tank 9, and an oil return filter is arranged on the pipeline from the overflow valve 8 and the reversing valve 14 to the oil tank 9.

[0034] Specifically, the hydraulic cylinder 6 is an oil cylinder, and the hydraulic pump 7 is an oil pump.

[0035] Finally, it should be noted that: the above examples are used to illustrate the technical solutions of the present application, but not limited to; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A leak-proof air permeability flow meter integrated measuring device, characterized in that, The device includes a frame, on which a lower clamping plate is fixed. An upper clamping plate is located above the lower clamping plate and is fixed to a crossbeam. Guide rods are fixed at both ends of the crossbeam and move up and down along the frame. A hydraulic cylinder is connected to the lower end of the guide rod. The hydraulic cylinder is connected to a hydraulic pump through a valve group module. The valve group module includes an overflow valve and is connected to an oil tank.

2. The leak-proof air permeability flow meter integrated measuring device according to claim 1, characterized in that, The upper end of the lower clamping plate is provided with a positioning groove.

3. The leak-proof air permeability flow meter integrated measuring device according to claim 2, characterized in that, Both the lower and upper clamping plates are equipped with sealing rings on opposite sides.

4. The leak-proof air permeability flow meter integrated measuring device according to claim 1, characterized in that, The frame includes a chassis, the guide rod is slidably connected to the upper panel of the chassis, and the hydraulic pump, hydraulic cylinder, valve group module and oil tank are all located inside the chassis.

5. The leak-proof air permeability flow meter integrated measuring device according to claim 4, characterized in that, The chassis is equipped with a connecting plate, and the two ends of the connecting plate are respectively fixed to two guide rods. The piston rod of the hydraulic cylinder is fixed below the connecting plate.

6. The leak-proof air permeability flow meter integrated measuring device according to claim 5, characterized in that, Four connecting rods are fixed inside the chassis. The lower end of each connecting rod is fixed with a mounting plate. The piston rod of the hydraulic cylinder passes through the mounting plate and is fixed to the connecting plate. The hydraulic cylinder is fixed on the mounting plate.

7. The leak-proof air permeability flow meter integrated measuring device according to claim 6, characterized in that, The hydraulic pump is located below the hydraulic cylinder, the oil tank and the hydraulic pump are both installed at the bottom of the chassis, and the valve group module is located above the oil tank.

8. The leak-proof air permeability flow meter integrated measuring device according to claim 1, characterized in that, The valve group module includes a check valve and a directional valve, which are located on the pipeline between the hydraulic pump and the hydraulic cylinder. The relief valve is connected to the pipeline between the check valve and the directional valve through a pipeline, and the outlet of the relief valve is connected to the oil tank through a pipeline.

9. The leak-proof air permeability flow meter integrated measuring device according to claim 8, characterized in that, The outlet of the one-way valve is connected to a filter via a pipeline, and the filter is connected to the reversing valve and the relief valve via pipelines respectively.

10. The leak-proof air permeability flow meter integrated measuring device according to claim 1, characterized in that, A throttle valve is installed on the pipeline between the oil suction port of the hydraulic pump and the oil tank.

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