Device based on empty box pressure gauge verification

Abstract

The invention relates to a verification device based on an empty box pressure gauge, and relates to the field of verification equipment based on the empty box pressure gauge. The plurality of groups of detection modules are fixedly connected with the workbench and are respectively provided with a detection flow channel, and each detection flow channel is provided with a detection end and a pressure relief end; the air supply module is fixedly connected with the workbench and is provided with an air supply flow channel, the detection flow channel is communicated with the air supply flow channel, and the air supply flow channel is provided with a standard end; the standard pressure gauge is connected with the standard end; and the driving module is fixedly connected with the workbench and is provided with a plurality of driving ends. According to the invention, by arranging a plurality of groups of detection modules, simultaneous detection of a plurality of groups of empty-box pressure gauges is realized, the detection efficiency of the empty-box pressure gauges is improved, the production cost of the empty-box pressure gauges is reduced, the driving end is utilized to drive the pressure relief end to move, rapid pressure relief of the calibrating device is realized, the disassembly and assembly time of the empty-box pressure gauges is reduced, and the detection efficiency of the empty-box pressure gauges is improved. And the detection efficiency of the empty box pressure gauge is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of empty box pressure gauge calibration equipment, and in particular to an empty box pressure gauge calibration device. Background Art

[0002] An empty box pressure gauge is an instrument that uses an empty box made of elastic metal as a sensing element to detect air pressure.

[0003] In the process of calibrating empty box pressure gauges, usually they are calibrated individually. Although this calibration method can be used, it can only calibrate one empty box pressure gauge at a time, and it takes a certain amount of time to pressurize and release the pressure. The empty box pressure gauge will waste a lot of time in the process of repeated disassembly and assembly. Therefore, a device that can calibrate batches of empty box pressure gauges is needed. Summary of the invention

[0004] In view of this, the purpose of the present invention is to propose a device based on empty box pressure gauge calibration to solve the problem of xx.

[0005] Based on the above-mentioned purpose, the present invention provides a device based on the calibration of an empty box pressure gauge, comprising: a workbench; a plurality of detection modules, fixedly connected to the workbench, having a detection channel, the detection channel having a detection end and a movable pressure relief end, the detection end being used to connect the empty box pressure gauge, and the pressure relief end controls the connection between the detection channel and the outside air through its own movement; an air supply module, fixedly connected to the workbench, having a supply channel for providing detection gas, the detection channel is connected to the supply channel, and the supply channel has a standard end; a standard pressure gauge, connected to the standard end, and used to calibrate the empty box pressure gauge; a driving module, fixedly connected to the workbench, having a plurality of driving ends, one of the driving ends is fixedly connected to a pressure relief end, and is used to drive the movement of the pressure relief end.

[0006] Preferably, the workbench includes a support frame and a table top fixed on the support frame.

[0007] Preferably, the detection module comprises a lower base and an upper base which are connected to each other, the lower base is fixedly connected to the table top, and a mounting end surface is provided at the upper end of the lower base, and the mounting end surface forms a certain angle with the horizontal plane.

[0008] Preferably, a first air duct running through the lower base is opened in the lower base, the first air duct has a first air inlet and a first air outlet, the first air outlet is opened on the mounting end surface, the first air inlet is opened on the outer wall of the lower base along the width direction of the workbench, a second air duct running through the upper base is opened in the upper base, the second air duct has a second air inlet, a second air outlet and a third air outlet, the second air inlet is opened at the lower end of the upper base and is connected with the first air outlet, the second air outlet is opened on the outer wall of the upper base along the length direction of the workbench, the third air outlet is opened at an end away from the first air outlet, and the first air duct and the second air duct are combined to form a detection flow channel.

[0009] Preferably, the detection end includes a connecting piece, which is connected to the third air outlet by a threaded connection, and a connecting channel that passes through the connecting piece is opened in the connecting piece, and a quick-connect groove is opened at the top of the connecting piece. The upper end of the connecting channel extends into the quick-connect groove, and the other end of the connecting channel is connected to the third air outlet.

[0010] Preferably, the pressure relief end includes a pressure relief screw, which is installed in the second air outlet by means of a threaded connection. The second air outlet includes channel one and channel two. The diameter of channel one is smaller than that of channel two. There is an interference boss between channel one and channel two. The pressure relief screw has a contact head, which can slide in channel two. The contact head can interfere with the interference boss and is used to seal channel one.

[0011] Preferably, the air supply module includes a first block and a second block fixed on a workbench, the first block is provided with a block flow channel 1 penetrating the first block, the second block is provided with a block flow channel 2 penetrating the second block, and the block flow channel 1 and the block flow channel 2 are combined to form an air supply channel.

[0012] Preferably, the standard end is opened on the first block and is connected to the block flow channel 1, the block flow channel 1 has an inlet 1 and an outlet 1, the block flow channel 2 has an inlet 2 and several outlets 2, the inlet 2 is connected to the outlet 1, and the outlet 2 is connected to the corresponding first air inlet.

[0013] Preferably, the driving module includes a driving telescopic cylinder and a guide rail, the driving telescopic cylinder is fixed to the lower end of the table top, the guide rail is fixed to the upper end of the table top, the telescopic end of the driving telescopic cylinder is fixed with a connecting bracket, a plurality of sliders are slidably mounted on the outer wall of the guide rail, the connecting bracket has an extension portion, the extension portion passes through the table top and is fixedly connected to the slider, and one slider is correspondingly connected to one driving end.

[0014] Preferably, the driving end includes a driving bracket, the driving bracket is fixed to the upper end of the table top, a sliding frame is installed on the driving bracket by sliding along the length direction of the table top, the sliding frame is fixedly connected to the slider, and the pressure relief screw is connected to the sliding frame by rotation.

[0015] The beneficial effects of the present invention are as follows: by configuring into several groups of detection modules, simultaneous detection of multiple groups of empty box pressure gauges is achieved, the detection efficiency of the empty box pressure gauges is improved, the production cost of the empty box pressure gauges is reduced, and the driving end is used to drive the pressure relief end to move, thereby achieving rapid pressure relief of the calibration device, reducing the disassembly and assembly time of the empty box pressure gauges, and further improving the detection efficiency of the empty box pressure gauges. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of the present invention;

[0018] Figure 2 A schematic diagram of the use of an embodiment of the present invention;

[0019] Figure 3 It is an exploded schematic diagram of an embodiment of the present invention;

[0020] Figure 4 is a schematic diagram of the three-dimensional structure of a driving module in an embodiment of the present invention;

[0021] Figure 5 An exploded schematic diagram of a driving module in an embodiment of the present invention;

[0022] Figure 6 is a cross-sectional view of an air supply module according to an embodiment of the present invention;

[0023] Figure 7 Schematic diagram of the three-dimensional structure of the air supply module in an embodiment of the present invention.

[0024] Markings in the figure are: 1. workbench; 11. support frame; 12. table top; 2. detection module; 21. lower base; 211. installation end face; 212. first air channel; 22. upper base; 221. second air channel; 2211. channel one; 2212. channel two; 3. air supply module; 31. first block; 311. block flow channel one; 32. second block; 321. block flow channel two; 4. standard pressure gauge; 5. drive module; 51. drive telescopic cylinder; 52. guide rail; 53. connecting bracket; 531. extension; 54. slider; 55. drive bracket; 56. sliding frame; 57. guide column; 58. limit cover plate; 6. connector; 61. quick-connect groove; 62. connecting channel; 7. pressure relief screw; 71. contact head. DETAILED DESCRIPTION

[0025] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0026] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0027] In one embodiment, see Figure 1 to Figure 2 As shown, the present invention provides a device based on empty box pressure gauge calibration, comprising: a workbench 1, a plurality of detection modules 2, an air supply module 3, a standard pressure gauge 4 and a drive module 5.

[0028] The workbench 1 is used as a carrier of the empty box pressure gauge calibration device.

[0029] Several groups of detection modules 2 are fixedly connected to the workbench 1 and have a detection flow channel. The detection flow channel has a detection end and a movable pressure relief end. The detection end is used to connect to an empty box pressure gauge, and the pressure relief end controls the connection between the detection flow channel and the outside air through its own movement.

[0030] The gas supply module 3 is fixedly connected to the workbench 1, and has a gas supply channel for providing detection gas, the detection channel is connected to the gas supply channel, and the gas supply channel has a standard end. The gas supply channel is connected to an external gas supply device, and the gas supply device is used to provide gas with a certain pressure.

[0031] The standard pressure gauge 4 is connected to the standard end and is used to calibrate the empty box pressure gauge. The standard pressure gauge 4 is used to provide a basis for verification.

[0032] The driving module 5 is fixedly connected to the workbench 1 and has a plurality of driving ends. One driving end is fixedly connected to a pressure relief end and is used to drive the movement of the pressure relief end.

[0033] Specifically, during the calibration, the empty box pressure gauge to be tested is connected to the detection end, and the external gas supply equipment is working. The gas supply equipment introduces gas of a certain pressure into the detection flow channel. The operator determines whether the use requirements are met by reading the data difference between the standard pressure gauge 4 and the empty box pressure gauge.

[0034] In summary, the present invention realizes simultaneous detection of multiple groups of empty box pressure gauges by configuring several groups of detection modules 2, thereby improving the detection efficiency of the empty box pressure gauges and reducing the production cost of the empty box pressure gauges. The driving end is used to drive the pressure relief end to move, thereby realizing rapid pressure relief of the calibration device, reducing the disassembly and assembly time of the empty box pressure gauges, and further improving the detection efficiency of the empty box pressure gauges.

[0035] As an example, see Figure 1 to Figure 2 As shown, the workbench 1 includes a support frame 11 and a table top 12 fixed to the support frame 11 by bolts.

[0036] Specifically, in this example, the support frame 11 and the table 12 are connected by bolts, which is convenient for quick disassembly and assembly, and is conducive to reducing the manufacturing cost of the calibration device.

[0037] As an example, see Figures 1 to 5 As shown, the detection module 2 includes a lower base 21 and an upper base 22 connected to each other by bolts. The lower base 21 is fixedly connected to the table 12 by bolts. The upper end of the lower base 21 is provided with a mounting end surface 211, and the mounting end surface 211 forms a certain angle with the horizontal plane.

[0038] Specifically, in this example, the installation end surface 211 forms a certain angle with the horizontal plane, so that the empty box pressure gauge can be easily observed by the operator after installation.

[0039] As an example, see Figures 1 to 5As shown, a first air duct 212 is opened in the lower base 21 and passes through the lower base 21. The first air duct 212 has a first air inlet and a first air outlet. The first air outlet is opened on the mounting end surface 211, and the first air inlet is opened on the outer wall of the lower base 21 along the width direction of the workbench 1. A second air duct 221 is opened in the upper base 22 and passes through the upper base 22. The second air duct 221 has a second air inlet, a second air outlet and a third air outlet. The second air inlet is opened at the lower end of the upper base 22 and is connected with the first air outlet. The second air outlet is opened on the outer wall of the upper base 22 along the length direction of the workbench 1, and the third air outlet is opened at an end away from the first air outlet. The first air duct 212 and the second air duct 221 are combined to form a detection flow channel.

[0040] Specifically, this example can effectively reduce the manufacturing difficulty of the detection module 2 and reduce the manufacturing cost of the detection module 2 by splitting the lower base 21 and the upper base 22 into separate designs.

[0041] As an example, see Figures 1 to 5 As shown, the detection end includes a connecting member 6, which is connected to the third air outlet by a threaded connection. A connecting channel 62 is provided in the connecting member 6 and passes through the connecting member 6. A quick-connect groove 61 is provided on the top of the connecting member 6. The upper end of the connecting channel 62 extends into the quick-connect groove 61, and the other end of the connecting channel 62 is connected to the third air outlet.

[0042] Specifically, this example is connected to the upper base 22 through the adapter of the connecting piece 6, which avoids the wear caused by frequent disassembly and assembly of the empty box pressure gauge, reduces the service life of the upper base 22, reduces the maintenance cost of the detection module 2, and the connecting piece 6 can be replaced according to the empty box pressure gauges of different specifications, thereby improving the use range of the calibration device and reducing the use cost of the calibration device.

[0043] As an example, see Figures 1 to 6 As shown, the pressure relief end includes a pressure relief screw 7, which is installed in the second air outlet by means of a threaded connection. The second air outlet includes a channel 1 2211 and a channel 2 2212. The diameter of the channel 1 2211 is smaller than that of the channel 2 2212. There is an interference boss between the channel 1 2211 and the channel 2 2212. The pressure relief screw 7 has a contact head 71. The contact head 71 can slide in the channel 2 2212. The contact head 71 can interfere with the interference boss and seal the channel 1 2211.

[0044] Specifically, in this example, the pressure relief screw 7 is rotated to move the contact head 71, thereby controlling the contact between the contact head 71 and the contact boss, thereby achieving the connection between the second air duct 221 and the external air, facilitating rapid exhaust and pressure relief, and improving the detection efficiency of the empty box pressure gauge.

[0045] As an example, see Figures 1 to 7 As shown, the air supply module 3 includes a first block 31 and a second block 32 fixed to the workbench 1 by bolts, the first block 31 is provided with a block flow channel 1 311 penetrating the first block 31, the second block 32 is provided with a block flow channel 2 321 penetrating the second block 32, and the block flow channel 1 311 and the block flow channel 2 321 are combined to form an air supply channel.

[0046] Specifically, this example reduces the time for laying out the pipelines, improves the installation efficiency of the air supply module 3 , and facilitates the rapid disassembly and assembly of the air supply module 3 through the combined design of the first block 31 and the second block 32 .

[0047] As an example, see Figures 1 to 7 As shown, the standard end is opened on the first block 31 and connected to the block flow channel 1 311. The block flow channel 1 311 has an inlet 1 and an outlet 1. The block flow channel 2 321 has an inlet 2 and several outlets 2. The inlet 2 is connected to the outlet 1, and the outlet 2 is connected to the corresponding first air inlet.

[0048] Specifically, in this example, an internal thread is provided in the standard end, and the standard pressure gauge 4 is rotatably inserted into the internal thread by means of a threaded connection.

[0049] As an example, see Figures 1 to 7 As shown, the driving module 5 includes a driving telescopic cylinder 51 and a guide rail 52. The driving telescopic cylinder 51 is fixed to the lower end of the table 12 by bolts, and the guide rail 52 is fixed to the upper end of the table 12 by bolts. The telescopic end of the driving telescopic cylinder 51 is fixed with a connecting bracket 53 by bolts, and a plurality of sliders 54 are slidably mounted on the outer wall of the guide rail 52. The connecting bracket 53 has an extension portion 531, which passes through the table 12 and is fixedly connected to the slider 54. One slider 54 is correspondingly connected to one driving end. Among them, a through slot is vertically opened on the table 12, and the extension portion 531 passes through the through slot.

[0050] Specifically, in this example, when the telescopic cylinder 51 is driven, the telescopic end of the telescopic cylinder 51 drives the connecting bracket 53 to move, the connecting bracket 53 drives the slider 54 to move, and the slider 54 drives the corresponding driving end to move, thereby controlling the interference between the contact head 71 and the interference boss.

[0051] As an example, see Figures 1 to 7 As shown, the driving end includes a driving bracket 55, which is fixed to the upper end of the table 12 by bolts. A sliding frame 56 is installed on the driving bracket 55 along the length direction of the table 12 by sliding. The sliding frame 56 is fixedly connected to the slider 54, and the pressure relief screw 7 is connected to the sliding frame 56 by rotation.

[0052] Specifically, in this example, a guide column 57 is set on the driving bracket 55 along the length direction of the table 12, and the sliding frame 56 is slidably mounted on the outer wall of the guide column 57. The sliding frame 56 is fixedly connected to the slider 54 by bolts. A rotating groove is set on the sliding frame 56, and the pressure relief screw 7 has a rotating flange. A limiting cover plate 58 is fixed on the rotating groove by bolts. The rotating flange passes through the limiting cover plate 58 and is rotatably inserted into the rotating groove.

[0053] In general, the present invention realizes the detection of multiple groups of empty box pressure gauges by configuring into several groups of detection modules 2, thereby improving the detection efficiency of the empty box pressure gauges, and utilizes the driving end to drive the pressure relief end to move, thereby realizing the rapid pressure relief of the calibration device, reducing the disassembly and assembly time of the empty box pressure gauges, and improving the detection efficiency of the empty box pressure gauges. At the same time, the detection module 2 is split into a lower base 21 and an upper base 22, which can effectively reduce the manufacturing difficulty of the detection module 2 and reduce the manufacturing cost of the detection module 2.

[0054] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0055] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device based on empty box pressure gauge calibration, characterized in that: include: Workbench (1); A plurality of detection modules (2) are fixedly connected to the workbench (1), and have a detection flow channel, wherein the detection flow channel has a detection end and a movable pressure relief end, wherein the detection end is used to connect to an empty box pressure gauge, and the pressure relief end controls the connection between the detection flow channel and the outside air through its own movement; A gas supply module (3) is fixedly connected to the workbench (1) and has a gas supply channel for providing detection gas, the detection channel is connected to the gas supply channel, and the gas supply channel has a standard end; A standard pressure gauge (4), connected to the standard end, used for calibrating the empty box pressure gauge; The driving module (5) is fixedly connected to the workbench (1) and has a plurality of driving ends, one of the driving ends being fixedly connected to a pressure relief end and used to drive the movement of the pressure relief end.

2. The device for calibrating an empty box pressure gauge according to claim 1, characterized in that: The workbench (1) comprises a support frame (11) and a tabletop (12) fixed on the support frame (11).

3. The device for calibrating an empty box pressure gauge according to claim 2, characterized in that: The detection module (2) comprises a lower base (21) and an upper base (22) which are connected to each other, the lower base (21) is fixedly connected to the table top (12), and a mounting end surface (211) is provided at the upper end of the lower base (21), and the mounting end surface (211) forms a certain angle with a horizontal plane.

4. The device for calibrating an empty box pressure gauge according to claim 3, characterized in that: A first air duct (212) is provided in the lower base (21) and passes through the lower base (21); the first air duct (212) has a first air inlet and a first air outlet; the first air outlet is provided on the mounting end surface (211); the first air inlet is provided on the outer wall of the lower base (21) along the width direction of the workbench (1); a second air duct (221) is provided in the upper base (22) and passes through the upper base (22); the second air duct (221) has a second air inlet, a second air outlet and a third air outlet; the second air inlet is provided at the lower end of the upper base (22) and is connected to the first air outlet; the second air outlet is provided on the outer wall of the upper base (22) along the length direction of the workbench (1); the third air outlet is provided at an end away from the first air outlet; the first air duct (212) and the second air duct (221) are combined to form a detection flow channel.

5. The device for calibrating an empty box pressure gauge according to claim 4, characterized in that: The detection end comprises a connecting piece (6), the connecting piece (6) is connected to the third air outlet by means of a threaded connection, a connecting channel (62) penetrating the connecting piece (6) is provided in the connecting piece (6), a quick-connect groove (61) is provided at the top of the connecting piece (6), the upper end of the connecting channel (62) extends into the quick-connect groove (61), and the other end of the connecting channel (62) is communicated with the third air outlet.

6. The device for calibrating an empty box pressure gauge according to claim 5, characterized in that: The pressure relief end comprises a pressure relief screw (7), and the pressure relief screw (7) is installed in the second air outlet by means of a threaded connection. The second air outlet comprises a channel 1 (2211) and a channel 2 (2212). The diameter of the channel 1 (2211) is smaller than that of the channel 2 (2212). There is a contact boss between the channel 1 (2211) and the channel 2 (2212). The pressure relief screw (7) has a contact head (71), and the contact head (71) can slide in the channel 2 (2212). The contact head (71) can contact the contact boss and is used to seal the channel 1 (2211).

7. The device for calibrating an empty box pressure gauge according to claim 6, characterized in that: The air supply module (3) comprises a first block (31) and a second block (32) fixed on a workbench (1); a block flow channel 1 (311) penetrating the first block (31) is provided in the first block (31); a block flow channel 2 (321) penetrating the second block (32) is provided in the second block (32); the block flow channel 1 (311) and the block flow channel 2 (321) are combined to form an air supply channel.

8. The device for calibrating an empty box pressure gauge according to claim 7, characterized in that: The standard end is opened on the first block (31) and is connected to the block flow channel 1 (311). The block flow channel 1 (311) has an inlet 1 and an outlet 1. The block flow channel 2 (321) has an inlet 2 and a plurality of outlets 2. The inlet 2 is connected to the outlet 1, and the outlet 2 is connected to the corresponding first air inlet.

9. The device for calibrating an empty box pressure gauge according to claim 8, characterized in that: The driving module (5) comprises a driving telescopic cylinder (51) and a guide rail (52); the driving telescopic cylinder (51) is fixed to the lower end of the table top (12); the guide rail (52) is fixed to the upper end of the table top (12); a connecting bracket (53) is fixed to the telescopic end of the driving telescopic cylinder (51); a plurality of sliding blocks (54) are slidably mounted on the outer wall of the guide rail (52); the connecting bracket (53) has an extension portion (531); the extension portion (531) passes through the table top (12) and is fixedly connected to the sliding block (54); and one sliding block (54) is correspondingly connected to one driving end.

10. The device for calibrating an empty box pressure gauge according to claim 9, characterized in that: The driving end comprises a driving bracket (55), the driving bracket (55) is fixed to the upper end of the table top (12), a sliding bracket (56) is mounted on the driving bracket (55) along the length direction of the table top (12) by sliding, the sliding bracket (56) is fixedly connected to the slider (54), and the pressure relief screw (7) is connected to the sliding bracket (56) by rotating.

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