A pressure gauge with a combined rotating structure

Abstract

The present application relates to the technical field of pressure detection devices, and in particular to a pressure gauge with a combined rotating structure, comprising a dial, a rotating sleeve rotatably connected to the dial, and a sensor mounted on the rotating sleeve, wherein the inner wall of the dial is provided with an anti-twisting component to prevent the wires in the pressure gauge from twisting, and the inner wall of the dial is provided with a limiter component to keep the angle between the rotating sleeve and the dial unchanged. The present application has the effect of reducing the possibility of twisting of the wires in the pressure gauge during the process of rotating the dial, and improving the convenience of rotating the dial.

Description

Technical Field

[0001] The present application relates to the technical field of pressure detection devices, and in particular to a pressure gauge with a combined rotating structure. Background Art

[0002] A pressure gauge is a common tool used to measure the pressure of gas or liquid in a closed pipeline. Currently, pressure gauges can be divided into electronic and mechanical types. Mechanical pressure gauges are commonly used in retractable Baden tubes, gears, connecting rods, and rotating shafts with hairsprings; electronic pressure gauges measure pressure values ​​by combining pressure sensors and related electronic components, and present the pressure values ​​of the pipeline to the staff in the form of electronic data.

[0003] The existing electronic pressure gauge includes a dial, a rotating sleeve rotatably connected to the dial, and a sensor installed at one end of the rotating sleeve away from the dial. A wire is connected between the sensor and the dial, and the sensor transmits a pressure signal to the dial through the wire. In the process of installing the electronic pressure gauge, in order to facilitate the staff to read the data on the dial, the dial is usually rotated at the end of the rotating sleeve so that the display screen on the dial is tilted in a direction that is convenient for the staff to read.

[0004] During the installation of the electronic pressure gauge, the staff turned the dial so that the display screen of the dial faced a direction that was convenient for the staff to read the pressure value. After turning the dial one circle, there was a possibility that the wires between the sensor and the dial would become tangled together, so there was room for improvement. Summary of the invention

[0005] In order to reduce the possibility of the wires in the pressure gauge being twisted together during the process of rotating the dial and improve the convenience of rotating the dial, the present application provides a pressure gauge with a combined rotating structure.

[0006] The present application provides a pressure gauge with a combined rotating structure, which adopts the following technical solution:

[0007] A pressure gauge with a combined rotating structure comprises a dial, a rotating sleeve rotatably connected to the dial, and a sensor mounted on the rotating sleeve, wherein the inner wall of the dial is provided with an anti-twisting component for preventing the wires in the pressure gauge from being twisted, and the inner wall of the dial is provided with a limiting component for keeping the angle between the rotating sleeve and the dial unchanged.

[0008] By adopting the above technical solution, the staff installs the pressure gauge on the pipeline to be tested, the sensor detects the pipeline pressure, and transmits the detected pipeline pressure to the dial. The screen on the dial presents the detected pressure value in digital form, which is convenient for the staff to read. The setting of the limit component ensures that the angle between the rotating sleeve and the dial remains unchanged when the staff turns the dial, reducing the possibility of the rotating sleeve exerting force on the outer wall of the wire, protecting the wire and reducing the probability of the wire being twisted; after the pressure gauge is installed on the pipeline, by turning the dial, the display screen on the dial faces the direction that is convenient for the staff to read the pressure value, and the anti-twisting component combs the wires in the pressure gauge, thereby reducing the possibility of the wires in the dial being twisted together after the dial rotates one circle.

[0009] Optionally, the anti-twist assembly includes a limit seat fixed on the inner wall of the dial and a protrusion fixed on the end of the rotating sleeve, and the limit seat can abut against the side wall of the protrusion.

[0010] By adopting the above technical solution, the dial is rotated, and when the side wall of the limit seat abuts against the side wall of the protrusion, the rotation of the dial is limited. Under the limitation of the limit seat and the protrusion, the angle at which the dial can be rotated is less than one circle, thereby reducing the possibility of the wires in the dial being twisted together after the dial rotates one circle.

[0011] Optionally, a mounting hole is formed through the side wall of the dial, and the limit assembly includes a limit block and an opening gasket that are snap-fitted to the inner wall of the mounting hole, the limit block is hollow, the rotating sleeve is interference fit with the limit block, a snap-fit ​​groove is formed on the outer wall of the rotating sleeve, the opening gasket is sleeved in the snap-fit ​​groove, and the side wall of the opening gasket abuts against the side wall of the limit block.

[0012] By adopting the above technical scheme, the staff first installs the limit block in the mounting hole, and then inserts the rotating sleeve onto the limit block, and positions the rotating sleeve through the open gasket, the open gasket is located in the clamping groove, and the angle between the rotating sleeve and the limit block remains unchanged during the rotation of the dial, and the angle between the limit block and the dial remains unchanged, so that the angle between the rotating sleeve and the dial remains unchanged; and the setting of the limit block reduces the possibility of wear on the dial during the rotation of the rotating sleeve.

[0013] Optionally, the height of the snap-fit ​​groove is greater than the thickness of the opening gasket.

[0014] By adopting the above technical solution, on the one hand, it is possible to prevent the installation of the opening gasket from being disturbed by incorrect processing of the snap-in groove, and on the other hand, the higher the groove height, the higher the processing success rate and the lower the processing cost.

[0015] Optionally, a groove is provided on the outer wall of the rotating sleeve, a blocking ring is provided on the inner wall of the groove, the outer wall of the blocking ring abuts against the inner wall of the limit block, and the height of the groove is greater than the thickness of the blocking ring.

[0016] By adopting the above technical solution, the blocking ring is made of rubber material, and the groove is opened to facilitate the installation of the blocking ring. The setting of the blocking ring increases the damping between the dial and the rotating sleeve, reduces the possibility of automatic rotation of the dial, and thus improves the stability of the dial.

[0017] Optionally, the anti-twist assembly includes a receiving tube, the sensor is electrically connected to the dial through a wire, the sensor is mounted on the receiving tube, the rotating sleeve is rotatably connected to the receiving tube, the dial rotates synchronously with the receiving tube, and a positioning assembly for limiting the rotation of the rotating sleeve and the receiving tube is provided on the inner wall of the rotating sleeve.

[0018] By adopting the above technical solution, during the process of installing the pressure gauge, the staff will pre-install the sensor at the position to be tested in the pipeline, turn the dial, and the receiving tube and the dial will rotate synchronously. After adjusting the direction of the dial, the pressure gauge will be fixed on the pipeline. When the staff turns the dial, the receiving tube will be driven to rotate synchronously, thereby driving the sensor to rotate synchronously. The wire on the pressure gauge is located in the rotating sleeve, thereby reducing the possibility of the wire being twisted due to the relative rotation of the dial and the sensor; after completing the adjustment of the dial direction, the limit assembly limits the relative rotation between the rotating sleeve and the receiving tube, so that the structure of the pressure gauge is more compact.

[0019] Optionally, a sliding hole is formed through the outer wall of the rotating sleeve, and the positioning assembly includes a limit pin slidably connected to the sliding hole and an elastic member fixed on the inner wall of the rotating sleeve for limiting the sliding of the limit pin, one end of the elastic member is fixedly connected to the inner wall of the rotating sleeve, and the other end is fixedly connected to the outer wall of the limit pin.

[0020] By adopting the above technical solution, the end of the limit pin abuts against the inner wall of the receiving tube, so that the elastic part is compressed. The elastic part applies a force toward the inner wall of the receiving tube to the limit pin. Under the joint action of the elastic part and the limit pin, the relative rotation between the rotating sleeve and the receiving tube is limited, thereby making the detection of the pressure gauge more stable.

[0021] Optionally, the receiving tube can slide along the length direction of the rotating sleeve, and a plurality of guide grooves are provided on the inner wall of the receiving tube, and the plurality of guide grooves are arranged along the length direction of the receiving tube. The end of the limit pin can slide in the corresponding guide groove, and a sliding rod is fixed on the outer wall of the dial, and the sliding rod is slidably connected to the receiving tube.

[0022] By adopting the above technical solution, when the staff turns the dial, the limit pin slides in the guide groove, and the guide groove serves to guide the limit pin, so that the rotation of the dial is smoother; the staff can also press or pull the dial, the elastic part is compressed, and the limit pin slides to other guide grooves, so that the distance between the dial and the pipeline changes, thereby facilitating the installation of the pressure gauge on the outer wall of the pipeline in different occasions; the setting of the sliding rod enables the dial and the receiving tube to rotate synchronously, and guides the movement of the dial toward the receiving tube.

[0023] Optionally, a charging module for charging the power supply module inside the dial is provided on the side wall of the dial, the socket of the charging module is connected to the outside world, and a cover plate is connected to the outer wall of the dial through a connecting piece, and the cover plate is provided at the socket of the charging module.

[0024] By adopting the above technical solution, the staff opens the cover, plugs the charging connector into the charging port of the charging module, and charges the power supply module in the dial, which facilitates the reuse of the pressure gauge. The setting of the cover blocks the socket of the charging module, reducing the possibility of dust and other debris entering the socket of the charging module.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. The staff installs the pressure gauge on the interface of the pipeline to be tested. The pressure gauge detects the pressure in the pipeline, transmits the detected signal to the dial, and reads the pressure value of the pipeline through the dial; after the pressure gauge is installed on the pipeline, the dial is rotated so that the display screen on the dial faces the direction that is convenient for the staff to read the pressure value. During the process of the staff turning the dial, the limit seat abuts against the protrusion, limiting the relative rotation between the dial and the rotating sleeve, so that the rotation angle of the dial is less than one circle, thereby reducing the possibility of the wires connecting the sensor in the pressure gauge and the electrical components inside the dial being twisted.

[0027] 2. During the installation of the pressure gauge, the staff rotates the dial according to the needs, and the dial drives the receiving tube to rotate, so that the dial and the sensor rotate synchronously. Grasp the rotating sleeve with the hand, and the rotating sleeve is stationary, so that the wire in the pressure gauge rotates synchronously with the dial and the receiving tube, reducing the possibility of the wire being tangled.

[0028] 3. The guide groove serves to guide the limit pin, making the relative rotation of the rotating sleeve and the receiving tube smoother; the staff can press the dial to move the limit pin to other guide grooves, so that the distance between the dial and the pipeline changes, making it easier to install the pressure gauge on pipelines in different environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1It is a schematic diagram of the overall structure of the pressure gauge in Example 1 of the present application.

[0030] Figure 2 It is a cross-sectional view of the pressure gauge in the embodiment of the present application, used to show the internal structure of the pressure gauge.

[0031] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0032] Figure 4 It is a schematic diagram of the overall structure of the pressure gauge in Example 2 of the present application.

[0033] Figure 5 It is a cross-sectional view of the rotating sleeve in the second embodiment of the present application, which is used to show the connection between the rotating sleeve and the receiving tube.

[0034] Figure numerals: 10, anti-twist assembly; 11, dial; 12, rotating sleeve; 13, sensor; 14, limit seat; 15, protrusion; 16, limit assembly; 17, mounting hole; 18, limit block; 19, opening gasket; 20, snap-in groove; 21, groove; 22, blocking ring; 23, receiving tube; 24, positioning assembly; 25, sliding hole; 26, limit pin; 27, elastic member; 28, guide groove; 29, sliding rod; 30, charging module; 31, cover plate; 32, fixing rod. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-5 This application is described in further detail.

[0036] The embodiment of the present application discloses a pressure gauge with a combined rotating structure.

[0037] Embodiment 1

[0038] Reference Figure 1 A pressure gauge with a combined rotating structure includes a dial 11, a rotating sleeve 12 connected to the outer wall of the dial 11, and a sensor 13 installed at the end of the rotating sleeve 12 away from the dial 11. The staff installs the end of the sensor 13 away from the dial 11 on the pipeline to be detected. The sensor 13 detects the pressure in the pipeline, transmits the detected pressure value to the dial 11, and displays it to the staff through the display screen on the dial 11, and obtains the pressure value of the pipeline through the display screen on the dial 11.

[0039] Reference Figure 2 and Figure 3The side wall of the dial 11 is provided with a limit assembly 16 which keeps the angle between the rotating sleeve 12 and the side wall of the dial 11 unchanged. A mounting hole 17 is provided through the side wall of the dial 11. The limit assembly 16 includes a limit block 18 which is clamped in the mounting hole 17. In the present application, the limit block 18 preferably has a rectangular parallelepiped shape. A through hole is provided through the side wall of the limit block 18. The rotating sleeve 12 is plugged and fixed with the inner wall of the limit block 18. A clamping groove 20 is provided on the outer wall of the rotating sleeve 12. The clamping groove 20 is located on the side of the limit block 18 facing the inner cavity of the dial 11. The limit assembly 16 also includes an open gasket 19 which is clamped and fixed on the inner wall of the clamping groove 20. After the staff inserts the rotating sleeve 12 into the limit block 18, the open gasket 19 is clamped in the clamping groove 20, thereby fixing the rotating sleeve 12 on the limit block 18. The setting of the open gasket 19 plays an anti-slip effect. When the operator rotates the dial 11, the angle between the rotating sleeve 12 and the outer wall of the dial 11 remains unchanged due to the limitation of the limit block 18 and the opening gasket 19, thereby reducing the possibility of the rotating sleeve 12 causing wear to the wire in the pressure gauge.

[0040] Reference Figure 3 The height of the snap-in groove 20 is greater than the thickness of the opening gasket 19. In the present application, the thickness of the opening gasket 19 is preferably 1 mm, and the corresponding thickness of the snap-in groove 20 is preferably 2 mm. On the one hand, it can prevent errors in processing and prevent installation. On the other hand, the higher the slot height, the higher the processing success rate and the lower the processing cost.

[0041] Reference Figure 2 and Figure 3 A fixing block is welded and fixed on the side wall of the limit block 18, and the fixing block abuts against the inner wall of the dial 11. Under the limitation of the fixing block, the connection between the limit block 18 and the dial 11 is more stable; a groove 21 is opened on the side wall of the rotating sleeve 12, and a blocking ring 22 is sleeved on the inner wall of the groove 21. In the present application, the blocking ring 22 is preferably made of rubber material, and the outer wall of the blocking ring 22 abuts against the outer wall of the rotating sleeve 12. The setting of the blocking ring 22 plays a sealing role on the one hand, and has a certain damping effect on the other hand, thereby reducing the possibility of the dial 11 rotating on its own.

[0042] Reference Figure 2 and Figure 3 The height of the groove 21 is greater than the thickness of the blocking ring 22, which reduces the interference caused by the error in the process of opening the groove 21 on the clamping of the blocking ring 22, and facilitates the opening of the groove 21, reducing the difficulty of opening the groove 21. The outer wall of the sensor 13 is clamped and fixed with the inner wall of the rotating sleeve 12. The sensor 13 is located at the end of the rotating sleeve 12 away from the dial 11. The wires led out of the sensor 13 are electrically connected to the electrical components in the dial 11 through the rotating sleeve 12.

[0043] Reference Figure 2 and Figure 3 , an anti-twist component 10 for unblocking the wires in the pressure gauge is provided on the inner wall of the dial 11. The anti-twist component 10 includes a limit seat 14 welded and fixed on the inner wall of the dial 11 and a protrusion 15 welded and fixed on the side wall of the rotating sleeve 12. The protrusion 15 is located at the end of the rotating sleeve 12. When the staff adjusts the direction of the dial 11, the dial 11 is rotated, and the dial 11 drives the limit seat 14 to rotate. The limit seat 14 abuts against the protrusion 15, thereby limiting the relative rotation of the dial 11 and the rotating sleeve 12. In this application, under the restriction of the limit seat 14 and the protrusion 15, the rotation angle of the dial 11 and the rotating sleeve 12 is 300 degrees. Under the restriction of the limit seat 14 and the protrusion 15, the possibility of the wires in the pressure gauge being twisted together is reduced, thereby protecting the wires.

[0044] Reference Figure 1 A fixing hole is provided on the outer wall of the dial 11, and the fixing hole is connected to the inner cavity of the dial 11. A charging module 30 is installed on the inner wall of the dial 11. The charging module 30 charges the power supply module in the dial 11. The socket of the charging module 30 is located in the fixing hole, and the staff charges the power supply module through the charging module 30; a cover plate 31 is connected to the outer wall of the dial 11 through a soft connecting piece, and the cover plate 31 is snap-fitted and fixed in the fixing hole. The setting of the cover plate 31 blocks the socket of the charging module 30, thereby reducing the possibility of external dust entering the socket of the charging module 30.

[0045] In the first embodiment of the present application, a pressure gauge with a combined rotating structure has the following implementation principles: the pressure gauge fixes a rotating sleeve 12 on a pipeline to be detected by a threaded sleeve, a sensor 13 detects the pressure in the pipeline, and transmits the detected pressure value in the pipeline to a dial 11, and the pressure value is presented on a display screen of the dial 11, and a staff member reads the pressure value of the pipeline through the display screen on the dial 11; after the pressure gauge is installed on the pipeline, the dial 11 is rotated so that the display screen on the dial 11 faces a direction that is convenient for the staff member to read the value, and the rotation angle of the dial 11 is less than 360 degrees under the restriction of the limit seat 14 and the protrusion 15, thereby reducing the possibility of the wire being tangled.

[0046] Embodiment 2

[0047] The difference between the second embodiment and the first embodiment is that: Figure 4The relative rotation angle of the dial 11 and the rotating sleeve 12 is not restricted. A sliding rod 29 is welded and fixed on the outer wall of the dial 11. In the present application, two sliding rods 29 are preferably provided. The anti-twist component 10 includes a receiving tube 23 slidingly connected to the outer walls of the two sliding rods 29. The sensor 13 is installed on the receiving tube 23. When the staff rotates the dial 11, the receiving tube 23 is driven by the sliding rod 29 to rotate synchronously, thereby driving the sensor 13 to rotate. Since the dial 11 and the sensor 13 rotate synchronously, the possibility of the wire connected between the sensor 13 and the dial 11 being twisted is reduced.

[0048] Reference Figure 5 , a positioning assembly 24 is provided on the inner wall of the rotating sleeve 12, and the positioning assembly 24 is provided to limit the relative rotation of the rotating sleeve 12 and the receiving tube 23. A sliding hole 25 is provided on the outer wall of the rotating sleeve 12. In the present application, two sliding holes 25 are provided, and both sliding holes 25 are connected to the inner cavity of the rotating sleeve 12. A fixing rod 32 is welded and fixed on the inner wall of the rotating sleeve 12. The positioning assembly 24 includes a limit pin 26 that is slidably connected to the sliding hole 25 and an elastic member 27 that is fixed to the outer wall of the fixing rod 32 by screws. In the present application, the elastic member 27 is preferably a spring sheet, and the shape of the elastic member 27 is an eight-shaped shape, one of the limit pins 26 is welded and fixed to one end of the elastic member 27, and the other limit pin 26 is welded and fixed to the other end of the elastic member 27. Under the action of the rebound force of the elastic member 27, the limit pin 26 abuts against the inner wall of the receiving tube 23.

[0049] Reference Figure 4 and Figure 5 A plurality of guide grooves 28 are evenly spaced on the inner wall of the receiving tube 23. In the present application, two guide grooves 28 are preferably provided. The two guide grooves 28 are arranged along the length direction of the receiving tube 23. The limit pin 26 abuts against the inner wall of the guide groove 28. During the rotation of the dial 11, the limit pin 26 slides in the corresponding guide groove 28, and under the guidance of the guide groove 28, the rotation of the dial 11 is smoother.

[0050] In the second embodiment of the present application, a pressure gauge with a combined rotating structure has the following implementation principle: the rotating sleeve 12 is fixed to the pipe to be tested by a pressure guiding tube, the staff holds the rotating sleeve 12 with one hand and rotates the dial 11 with the other hand, and the receiving tube 23 is synchronously rotated under the drive of the sliding rod 29, so that the sensor 13 and the dial 11 rotate synchronously, and the wire between the sensor 13 and the dial 11 passes through the rotating sleeve 12. Since the sensor 13 and the dial 11 rotate synchronously, the possibility of the wires being twisted together is reduced, thereby protecting the wires; by pressing or pulling the dial 11, the limit pin 26 slides into different guide grooves 28, so that the distance between the dial 11 and the outer wall of the pipe changes, which facilitates the installation of the pressure gauge on pipes in different environments.

[0051] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A pressure gauge with a combined rotating structure, comprising a dial (11), a rotating sleeve (12) rotatably connected to the dial (11), and a sensor (13), Features: It also includes an anti-twist component (10), and a limit component (16) is provided on the inner wall of the dial (11) so that the angle between the rotating sleeve (12) and the dial (11) remains unchanged; The anti-twist assembly (10) comprises a receiving tube (23), the receiving tube (23) is slidably connected to the outside of the rotating sleeve (12), the sensor (13) is mounted on the receiving tube (23), the rotating sleeve (12) is rotatably connected to the receiving tube (23), and a positioning assembly (24) is arranged on the inner wall of the rotating sleeve (12); A sliding rod (29) is fixed on the outer wall of the dial (11), and the sliding rod (29) is slidingly connected to the receiving tube (23); A sliding hole (25) is formed through the outer wall of the rotating sleeve (12); the positioning assembly (24) comprises a limit pin (26) slidably connected to the sliding hole (25) and an elastic member (27) fixed to the inner wall of the rotating sleeve (12) for limiting the sliding of the limit pin (26); one end of the elastic member (27) is fixedly connected to the inner wall of the rotating sleeve (12), and the other end is fixedly connected to the outer wall of the limit pin (26); a guide groove (28) is formed on the inner wall of the receiving tube (23), and the limit pin (26) is slidably connected to the inner wall of the guide groove (28).

2. A pressure gauge with a combined rotating structure according to claim 1, Features: A mounting hole (17) is formed through the side wall of the dial (11); the limiting assembly (16) comprises a limiting block (18) and an opening gasket (19) which are fixedly connected to the inner wall of the mounting hole (17); the limiting block (18) is hollow; the rotating sleeve (12) and the limiting block (18) are interference-fitted; a clamping groove (20) is formed on the outer wall of the rotating sleeve (12); the opening gasket (19) is sleeved in the clamping groove (20); and the side wall of the opening gasket (19) abuts against the side wall of the limiting block (18).

3. A pressure gauge with a combined rotating structure according to claim 2, Features: The height of the clamping groove (20) is greater than the thickness of the opening gasket (19).

4. A pressure gauge with a combined rotating structure according to claim 3, Features: A groove (21) is provided on the outer wall of the rotating sleeve (12), a blocking ring (22) is sleeved on the inner wall of the groove (21), the outer wall of the blocking ring (22) abuts against the inner wall of the limit block (18), and the height of the groove (21) is greater than the thickness of the blocking ring (22).

5. A pressure gauge with a combined rotating structure according to claim 1, Features: The receiving tube (23) can slide along the length direction of the rotating sleeve (12), and a plurality of guide grooves (28) are provided, and the plurality of guide grooves (28) are arranged along the length direction of the receiving tube (23).

6. A pressure gauge with a combined rotating structure according to claim 1, Features: A charging module (30) for charging a power supply module in the dial (11) is arranged on the side wall of the dial (11); a wire socket of the charging module (30) is connected to the outside; a cover plate (31) is connected to the outer wall of the dial (11) via a connecting piece; the cover plate (31) covers the wire socket of the charging module (30).

Images