Energy-saving air gauge

Abstract

The utility model provides an energy-saving pneumatic measuring instrument, which relates to the technical field of measuring equipment and comprises a pneumatic measuring instrument main body, the front surface of the pneumatic measuring instrument main body is electrically connected with an electric wire, the position of the front surface of the pneumatic measuring instrument main body close to the electric wire is fixedly communicated with an air pipe, and the front end of the electric wire is provided with a lower pedal. According to the utility model, by treading the upper pedal, the upper pedal drives the pressing block to extrude the springback switch under the action of the first rotating block, the second rotating block and the rotating shaft, so that the pneumatic gauge main body is controlled to stop conveying an air source, and the springback switch loses extrusion under the action of the spring after the upper pedal is released; the energy-saving pneumatic measuring instrument is simple in design structure, the problem that part of the air source is lost due to air leakage of the measuring head in the unused stage can be solved by additionally arranging the external foot switch, operation is convenient, and the energy-saving effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring equipment, in particular to an energy-saving pneumatic measuring instrument. Background Art

[0002] A pneumatic measuring instrument is a new type of measuring instrument used in the machinery manufacturing industry. It converts the change in the size of the workpiece into a change in the compressed air flow or pressure, and indicates it through an indicating device, thereby achieving precise measurement of the workpiece dimensional error. A pneumatic measuring instrument generally consists of two parts: the measuring instrument body (a float-type pneumatic measuring instrument, a pointer-type pneumatic measuring instrument, or an electronic pneumatic measuring instrument) and a measuring device (also called a pneumatic measuring head).

[0003] In the prior art, such as Chinese patent publication number CN220398495U, a pneumatic measuring instrument is disclosed, which includes: a pneumatic measuring instrument body, the outer surface of the pneumatic measuring instrument body is provided with a connecting mechanism, and the connecting mechanism includes a connecting sleeve connected to the air outlet of the pneumatic measuring instrument body. In the utility model, after the sliding block drives the connecting rod to pull back to a suitable position, the through groove on the outer surface of the connecting rod is aligned with the protrusion, and then a part is pulled back to make the two fit together. Then, after the above steps are completed, the pressing plate is released, and the torsion spring caused by lifting will return to the original state, and the circular block will drive the round rod to reset the angle. At this time, the pressing plate will also change the angle with the round rod until the snap block on the outer surface of the pressing plate is connected with the snap groove on the outer surface of the extension plate. Then, it can be seen from the above method that by changing the connection means between the pipeline and the air outlet, the connection between the two is more stable, and the possibility of the pipeline falling off is avoided to a certain extent.

[0004] Although the above patent changes the connection method between the pipeline and the air outlet, which to a certain extent avoids the possibility of the pipeline falling off, when the pneumatic measuring instrument is in use, the main body will continuously supply the air source to the starting measuring head through the air pipe. When the measuring head is used to measure the inner diameters of different workpieces, each time the measuring head and the workpiece are disconnected, part of the air source will be discharged into the air, resulting in energy waste. Therefore, in response to the above problem, we propose a new type of energy-saving pneumatic measuring instrument. Utility Model Content

[0005] The utility model aims to solve the problem in the prior art that in the process of measuring the inner diameters of different workpieces using a measuring head, each time the measuring head and the workpiece are disconnected, a part of the air source is discharged into the air, thereby causing energy waste, and an energy-saving pneumatic measuring instrument is proposed.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an energy-saving pneumatic measuring instrument, comprising a pneumatic measuring instrument body, the front surface of the pneumatic measuring instrument body is electrically connected to an electric wire, the front surface of the pneumatic measuring instrument body is fixedly connected to an air pipe near the electric wire, a lower pedal is installed at the front end of the electric wire, an upper pedal is arranged above the lower pedal, a pressure block is fixedly connected to the bottom of the upper pedal near the front side, a rebound switch is installed at the top of the lower pedal near the front side, the pressure block and the rebound switch cooperate, the rebound switch and the electric wire are electrically connected through an internal circuit, a measuring head is installed at the front end of the air pipe, and a handle is installed at the top of the measuring head near the outside of the air pipe.

[0007] Preferably, a first rotating block is fixedly connected to a top portion of the lower pedal near the rear side, and a second rotating block is fixedly connected to a bottom portion of the upper pedal near the rear side.

[0008] Preferably, a rotating shaft is rotatably connected inside the first rotating block, and two ends of the rotating shaft are fixedly connected to two side inner walls of the second rotating block.

[0009] Preferably, a first positioning column is fixedly connected to the bottom of the upper pedal near the middle, and a second positioning column is fixedly connected to the top of the lower pedal near the middle, and a spring is sleeved between the outer surfaces of the first positioning column and the second positioning column.

[0010] Preferably, a mounting bracket is symmetrically fixedly connected to the top of the lower pedal near the front edge, and second limit blocks are fixedly connected to the outer surfaces of opposite sides of the two mounting brackets near the top.

[0011] Preferably, a first limiting block is fixedly connected to the outer surfaces of opposite sides of the two mounting frames near a middle position, and the first limiting block is located below the upper pedal.

[0012] Preferably, the second limiting block is located above the upper pedal, and an anti-slip pad is bonded and connected to the bottom of the lower pedal.

[0013] Preferably, an annular plate is fixedly connected to a position of the outer surface of the grip near the measuring head, and a rubber layer is bonded to the bottom of the annular plate.

[0014] Preferably, the outer surface of the annular plate is sleeved with a gas collecting cylinder, and a support ring is fixedly connected near the middle between the inner surface walls of the gas collecting cylinder, and the top of the support ring fits with the bottom of the rubber layer.

[0015] Preferably, the inner surface wall of the gas collecting cylinder is tightly fitted with the outer surfaces of the annular plate and the rubber layer, the outer surface of the gas collecting cylinder is fixedly connected with an exhaust nozzle, and the diameter of the annular plate is larger than the diameter of the measuring head.

[0016] Compared with the prior art, the advantages and positive effects of the utility model are:

[0017] 1. In the utility model, by stepping on the upper pedal, the upper pedal drives the pressure block to squeeze the rebound switch under the action of the first rotating block, the second rotating block and the rotating shaft, thereby controlling the pneumatic measuring instrument body to stop delivering the gas source. After releasing the upper pedal, the rebound switch loses its squeezing under the action of the spring, thereby controlling the pneumatic measuring instrument body to re-deliver the gas source to the measuring head for work. The design structure is simple, and the problem of losing part of the gas source during the pulling out of the measuring head and when the measuring head is not working can be avoided by adding an external foot switch. The operation is convenient and has a good energy-saving effect.

[0018] 2. In the utility model, when the measuring head is temporarily out of use, the measuring head can also be inserted into the gas collecting cylinder. At this time, the annular plate, the rubber layer and the gas collecting cylinder are fitted together and the measuring head will be stuck inside the gas collecting cylinder under the action of friction, and the rubber layer and the support ring will seal the upper half of the gas collecting cylinder after contact. At this time, the gas ejected by the measuring head will enter the gas collecting cylinder and then be ejected from the exhaust nozzle. After the hose is connected to the exhaust nozzle through the fitting joint and the other end of the hose is fixed to the position on the table that needs to be dusted, the gas source discharged from the measuring head can be used for dust removal, thereby improving the functionality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional diagram of an energy-saving pneumatic measuring instrument is proposed for the utility model;

[0020] Figure 2 A partial structural stereogram of an energy-saving pneumatic measuring instrument is proposed for the utility model;

[0021] Figure 3 The utility model provides a schematic diagram of the gas collecting cylinder structure of an energy-saving pneumatic measuring instrument;

[0022] Figure 4 The utility model provides a schematic diagram of the lower pedal structure of an energy-saving pneumatic measuring instrument.

[0023] Legend: 1. Pneumatic measuring instrument body; 11. Air pipe; 12. Electric wire; 13. Measuring head; 2. Handle; 21. Ring plate; 22. Rubber layer; 3. Air collecting cylinder; 31. Support ring; 32. Exhaust nozzle; 4. Lower pedal; 41. First rotating block; 42. Rotating shaft; 43. Second rotating block; 44. Upper pedal; 45. First positioning column; 46. Second positioning column; 47. Spring; 48. Pressing block; 49. Rebound switch; 5. Mounting frame; 51. First limit block; 52. Second limit block; 53. Anti-slip pad. DETAILED DESCRIPTION

[0024] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0026] Embodiment 1, as Figure 1-Figure 4 As shown, the utility model provides an energy-saving pneumatic measuring instrument, including a pneumatic measuring instrument body 1, the front surface of the pneumatic measuring instrument body 1 is electrically connected to an electric wire 12, the front surface of the pneumatic measuring instrument body 1 is fixedly connected to an air pipe 11 near the electric wire 12, a lower pedal 4 is installed at the front end of the electric wire 12, an upper pedal 44 is arranged above the lower pedal 4, a pressure block 48 is fixedly connected to the bottom of the upper pedal 44 near the front side, a rebound switch 49 is installed at the top of the lower pedal 4 near the front side, the pressure block 48 and the rebound switch 49 cooperate, the rebound switch 49 and the electric wire 12 are electrically connected through an internal circuit, a measuring head 13 is installed at the front end of the air pipe 11, a handle 2 is installed at the top of the measuring head 13 near the outside of the air pipe 11, a first rotating block 41 is fixedly connected to the top of the lower pedal 4 near the rear side, and a first rotating block 41 is fixedly connected to the bottom of the upper pedal 44 near the rear side. A second rotating block 43 is connected, and the first rotating block 41 is internally rotatably connected to a rotating shaft 42, and both ends of the rotating shaft 42 are fixedly connected to the inner walls of the second rotating block 43 on both sides, a first positioning column 45 is fixedly connected to the bottom of the upper pedal 44 near the middle position, and a second positioning column 46 is fixedly connected to the top of the lower pedal 4 near the middle position, and a spring 47 is sleeved between the outer surfaces of the first positioning column 45 and the second positioning column 46, and a mounting frame 5 is symmetrically fixedly connected to the top of the lower pedal 4 near the front edge, and the outer surfaces of the opposite sides of the two mounting frames 5 are fixedly connected to the second limit blocks 52 near the top position, and the outer surfaces of the opposite sides of the two mounting frames 5 are fixedly connected to the first limit blocks 51 near the middle position, the first limit block 51 is located below the upper pedal 44, and the second limit block 52 is located above the upper pedal 44, and the bottom of the lower pedal 4 is bonded with an anti-slip pad 53.

[0027] The effect achieved by the entire embodiment 1 is that the pneumatic measuring instrument body 1, the air pipe 11 and the measuring head 13 cooperate to detect the inner diameter size of the workpiece according to the change of air flow or pressure, and then convert these changes into electrical signals through the pneumatic sensor and then display them on the indicator, thereby completing the measurement operation. Its working principle is an existing mature technology and will not be elaborated on here. When the measuring head 13 is used to detect the inner diameters of different workpieces, the measuring head 13 is taken out from the workpiece detection position, and the upper pedal 44 is stepped on synchronously. At this time, under the action of the first rotating block 41, the second rotating block 43 and the rotating shaft 42, the upper pedal 44 will rotate downward and squeeze the spring 47 to contract. When the upper pedal 44 rotates to a certain amplitude, the pressure block 48 at the bottom will squeeze the rebound switch 49. When the rebound switch 49 is squeezed, an electrical signal will be generated and transmitted to the pneumatic measuring instrument body 1 through the wire 12 to trigger the air pipe 11 closing signal, thereby stopping the air source from being supplied to the measuring head 13, and the measuring head 13 is inserted into the workpiece. After the inner diameter detection position, when the upper pedal 44 is released, the spring 47 loses its extrusion and rebounds, thereby lifting the upper pedal 44 to reset. At this time, the rebound switch 49 stops sending an electrical signal to the pneumatic measuring instrument body 1 after rebounding, so that the pneumatic measuring instrument body 1 continues to transport the air source to the measuring head 13 through the air pipe 11 for measurement operation. The design structure is simple, and the problem of losing part of the air source during the removal of the measuring head 13 can be avoided by adding an external foot switch. The operation is convenient and has good energy-saving effect. When the lower pedal 4 is stepped on and rotated downward to the maximum stroke, the lower pedal 4 will be supported by the first limit block 51. After the lower pedal 4 is released and rotated to the maximum stroke, the lower pedal 4 will be pressed by the second limit block 52. Therefore, the lower pedal 4 will not be over-extruded when it cooperates with the pressure block 48 to trigger the rebound switch 49, thereby improving the service life of the device. The anti-slip pad 53 plays a role in improving the anti-slip effect of the lower pedal 4, and the first positioning column 45 and the second positioning column 46 play a role in limiting the spring 47.

[0028] Embodiment 2, as Figure 1-Figure 4 As shown, an annular plate 21 is fixedly connected to the outer surface of the handle 2 near the measuring head 13, a rubber layer 22 is bonded to the bottom of the annular plate 21, an air collecting cylinder 3 is sleeved on the outer surface of the annular plate 21, a supporting ring 31 is fixedly connected near the middle between the inner surface walls of the air collecting cylinder 3, the top of the supporting ring 31 and the bottom of the rubber layer 22 are in close contact with each other, the inner surface wall of the air collecting cylinder 3 is in close contact with the outer surfaces of the annular plate 21 and the rubber layer 22, an exhaust nozzle 32 is fixedly connected to the outer surface of the air collecting cylinder 3, and the diameter of the annular plate 21 is larger than the diameter of the measuring head 13.

[0029] The effect achieved by the entire embodiment 2 is that, at the same time, when the measuring head 13 is temporarily out of use, the measuring head 13 can also be inserted into the gas collecting cylinder 3. At this time, the annular plate 21 and the rubber layer 22 and the gas collecting cylinder 3 are fitted together and the measuring head 13 will be stuck inside the gas collecting cylinder 3 under the action of friction, and the rubber layer 22 and the support ring 31 will contact and seal the upper half of the gas collecting cylinder 3. At this time, the gas ejected by the measuring head 13 will enter the gas collecting cylinder 3 and then be ejected from the exhaust nozzle 32. After the hose is connected to the exhaust nozzle 32 through the fitting joint and the other end of the hose is fixed to the position on the table where dust needs to be removed, the gas source discharged from the measuring head 13 can be used for dust removal, thereby improving the functionality of the device.

[0030] Working principle: When the measuring head 13 is used to detect the inner diameters of different workpieces, the measuring head 13 is taken out from the workpiece detection position, and the upper pedal 44 is stepped on synchronously. At this time, under the action of the first rotating block 41, the second rotating block 43 and the rotating shaft 42, the upper pedal 44 will rotate downward and squeeze the spring 47 to contract. When the upper pedal 44 rotates to a certain amplitude, the pressure block 48 at the bottom will squeeze the rebound switch 49. When the rebound switch 49 is squeezed, an electrical signal will be generated and transmitted to the pneumatic measuring instrument body 1 through the wire 12 to trigger the air pipe 11 closing signal, thereby stopping the air supply to the measuring head 13. After the measuring head 13 is inserted into the workpiece inner diameter detection position, when the upper pedal 44 is released, the spring 47 loses the extrusion and will rebound, thereby lifting the upper pedal 44 to reset. At this time, the rebound switch 49 stops sending electrical signals to the pneumatic measuring instrument body 1 after rebounding, so that the pneumatic measuring instrument body 1 continues to pass through the air pipe 11 delivers gas source to the measuring head 13 for measuring operation. The design structure is simple. By adding an external foot switch, the problem of losing part of the gas source during the pulling out of the measuring head 13 can be avoided. The operation is convenient and has good energy-saving effect. At the same time, when the measuring head 13 is temporarily stopped, the measuring head 13 can also be inserted into the gas collecting cylinder 3. At this time, the annular plate 21 and the rubber layer 22 and the gas collecting cylinder 3 are fitted together and the measuring head 13 is stuck in the inside of the gas collecting cylinder 3 under the action of friction. The rubber layer 22 and the support ring 31 are in contact and play a role in sealing the upper half of the gas collecting cylinder 3. At this time, the gas ejected by the measuring head 13 will enter the inside of the gas collecting cylinder 3 and then be ejected from the exhaust nozzle 32. After the hose is matched with the joint and the exhaust nozzle 32, the other end of the hose is fixed to the position where dust needs to be removed on the table, and the gas source discharged from the measuring head 13 can be used for dust removal, thereby improving the functionality of the device.

[0031] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An energy-saving pneumatic measuring instrument, comprising a pneumatic measuring instrument body (1), characterized in that: The front surface of the pneumatic measuring instrument body (1) is electrically connected to an electric wire (12); the front surface of the pneumatic measuring instrument body (1) is fixedly connected to an air pipe (11) near the electric wire (12); a lower pedal (4) is installed at the front end of the electric wire (12); an upper pedal (44) is arranged above the lower pedal (4); a pressure block (48) is fixedly connected to the bottom of the upper pedal (44) near the front side; a rebound switch (49) is installed at the top of the lower pedal (4) near the front side; the pressure block (48) and the rebound switch (49) cooperate with each other; the rebound switch (49) and the electric wire (12) are electrically connected through an internal circuit; a measuring head (13) is installed at the front end of the air pipe (11); a handle (2) is installed at the top of the measuring head (13) near the outside of the air pipe (11).

2. The energy-saving pneumatic measuring instrument according to claim 1, characterized in that: A first rotating block (41) is fixedly connected to the top of the lower pedal (4) near the rear side, and a second rotating block (43) is fixedly connected to the bottom of the upper pedal (44) near the rear side.

3. The energy-saving pneumatic measuring instrument according to claim 2, characterized in that: The first rotating block (41) is internally rotatably connected with a rotating shaft (42), and both ends of the rotating shaft (42) are fixedly connected to the inner surface walls on both sides of the second rotating block (43).

4. The energy-saving pneumatic measuring instrument according to claim 3 is characterized in that: A first positioning column (45) is fixedly connected to the bottom of the upper pedal (44) near the middle, and a second positioning column (46) is fixedly connected to the top of the lower pedal (4) near the middle. A spring (47) is sleeved between the outer surfaces of the first positioning column (45) and the second positioning column (46).

5. The energy-saving pneumatic measuring instrument according to claim 4, characterized in that: A mounting frame (5) is symmetrically fixedly connected to the top of the lower pedal (4) near the front edge, and second limit blocks (52) are fixedly connected to the outer surfaces of opposite sides of the two mounting frames (5) near the top.

6. The energy-saving pneumatic measuring instrument according to claim 5, characterized in that: A first limiting block (51) is fixedly connected to the outer surfaces of opposite sides of the two mounting frames (5) at a position close to the middle, and the first limiting block (51) is located below the upper pedal (44).

7. The energy-saving pneumatic measuring instrument according to claim 6, characterized in that: The second limiting block (52) is located above the upper pedal (44), and an anti-slip pad (53) is bonded and connected to the bottom of the lower pedal (4).

8. The energy-saving pneumatic measuring instrument according to claim 7, characterized in that: An annular plate (21) is fixedly connected to the outer surface of the handle (2) near the measuring head (13), and a rubber layer (22) is bonded to the bottom of the annular plate (21).

9. The energy-saving pneumatic measuring instrument according to claim 8, characterized in that: The outer surface of the annular plate (21) is sleeved with a gas collecting cylinder (3), and a support ring (31) is fixedly connected near the middle of the inner surface wall of the gas collecting cylinder (3), and the top of the support ring (31) is in contact with the bottom of the rubber layer (22).

10. The energy-saving pneumatic measuring instrument according to claim 9, characterized in that: The inner surface wall of the gas collecting cylinder (3) is tightly fitted with the outer surfaces of the annular plate (21) and the rubber layer (22); the outer surface of the gas collecting cylinder (3) is fixedly connected to an exhaust nozzle (32); and the diameter of the annular plate (21) is larger than the diameter of the measuring head (13).

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