CN115575024A

CN115575024A - Accurate pressure sensor

Info

Publication number: CN115575024A
Application number: CN202211254588.4A
Authority: CN
Inventors: 刘新东
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-10-13
Filing date: 2022-10-13
Publication date: 2023-01-06

Abstract

The invention belongs to the technical field of pressure sensors, and particularly discloses an accurate pressure sensor which comprises a control groove, wherein a pressure plate is arranged at the bottom of the inner side of the control groove in a sliding manner, a water baffle is fixedly arranged at one side, close to the pressure plate, of the bottom of the inner side of the control groove, an adjusting and controlling mechanism is arranged at the upper end of the pressure plate, a limiting mechanism is arranged at the upper end of the pressure plate, close to the front side of the adjusting and controlling mechanism, the adjusting and controlling mechanism comprises a fixed rod fixedly arranged at the upper end of the pressure plate, a connecting frame is arranged at the outer side of the fixed rod in a sliding manner, a control frame is fixedly arranged in a moving manner of the connecting frame, and a sliding block is arranged at the inner side of the control frame in a sliding manner. The invention can accurately detect the liquid pressure through the matching of the regulating mechanism and the limiting mechanism, and simultaneously limit the liquid circulation through the liquid pressure.

Description

Accurate pressure sensor

Technical Field

The invention belongs to the technical field of pressure sensors, and particularly discloses an accurate pressure sensor.

Background

A pressure sensor is usually composed of a pressure sensitive element and a signal processing unit. Pressure sensors can be classified into gauge pressure sensors, differential pressure sensors, and absolute pressure sensors according to different types of test pressures. The pressure sensor is the most common sensor in industrial practice, is widely applied to various industrial automatic control environments and relates to various industries such as water conservancy and hydropower, railway traffic, intelligent buildings, production automatic control, aerospace, war industry, petrifaction, oil wells, electric power, ships, machine tools, pipelines and the like;

pressure sensor in the past, when using on water conservancy hydroelectric equipment, because water conservancy hydroelectric equipment majority carries out pressure measurement to liquid, current pressure sensor is mostly for detecting pressure through the flow, the great detection error often exists when actually carrying out pressure measurement work, when pressure is less, pressure sensor also detects, thereby when leveling the pressure value, this pressure average data error is great, and be connected to in the pipeline between the check out test set, thereby can not be less to liquid flow, restrict the circulation, so can continue the circulation in the pipeline when leading to liquid flow less.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides an accurate pressure sensor.

In order to achieve the above purpose, the invention provides an accurate pressure sensor, which comprises a control groove, wherein a pressure plate is arranged at the bottom of the inner side of the control groove in a sliding manner, a water baffle is fixedly arranged at one side of the bottom of the inner side of the control groove, which is close to the pressure plate, a regulating mechanism is arranged at the upper end of the pressure plate, a limiting mechanism is arranged at the upper end of the pressure plate, which is close to the front side of the regulating mechanism, the regulating mechanism comprises a fixed rod fixedly arranged at the upper end of the pressure plate, a connecting frame is arranged at the outer side of the fixed rod in a sliding manner, a control frame is fixedly arranged in a moving manner on the connecting frame, a sliding block is arranged in the inner side of the control frame in a sliding manner, a connecting plate is fixedly arranged in a moving manner on the sliding block, a small gear bar is fixedly arranged at the front end of the connecting plate, a first spring is movably arranged at the outer side of the fixed rod, which is close to the upper side of the connecting frame, and a telescopic rod is fixedly arranged at the upper end of the connecting frame, the outer side of the telescopic rod is movably provided with a second spring, the front end of the control frame is fixedly provided with a fixed frame, the inner side of the fixed frame is movably provided with a transmission shaft, one side of the outer side of the transmission shaft, which is close to the fixed frame, is fixedly provided with a transmission gear, the limiting mechanism comprises a large gear strip which is fixedly arranged at the upper end of the control groove and is close to the front side of the fixed rod, the rear end of the large gear strip is meshed with a small gear disc, the rear end of the small gear disc is provided with a conversion part, the conversion part comprises a large gear disc which is meshed with the rear end of the small gear disc, the inner side of the large gear disc is fixedly provided with a linkage shaft, one side of the outer side of the linkage shaft, which is close to the large gear disc, is movably provided with a control panel, one side of the outer side of the linkage shaft, which is close to the control panel, is fixedly provided with a control disc, one end of the control disc is provided with an adjusting groove, the movable groove is formed in the front end of the control plate, the movable groove is formed in one end of the control plate, the movable groove is communicated with the movable groove, the movable rod is arranged on the inner side of the movable groove in a sliding mode, and the limiting rod is arranged on the inner side of the movable groove in a sliding mode.

In the above technical scheme, preferably, a movable plate is fixedly arranged at one end of the transmission shaft, a pressure gauge is movably arranged at the upper end of the movable plate, a mounting plate is fixedly arranged at one end of the control frame, the rear end of the pinion rack is meshed with the front end of the transmission gear, and the upper end of the fixed rod is fixedly connected with the lower end of the connecting plate.

In the above technical scheme, preferably, the upper end of the first spring and the lower end of the connecting plate are close to the outer side fixed connection of the fixing rod, the lower end of the second spring and the upper end of the connecting frame are close to the outer side fixed connection of the telescopic rod, the lower end of the first spring and the upper end of the connecting frame are close to the front side fixed connection of the second spring, and the upper end of the second spring and the lower end of the connecting plate are close to the rear side fixed connection of the first spring.

In the above technical scheme, preferably, the upper end of the telescopic rod and the lower end of the connecting plate are fixedly connected with the inner side of the second spring, the upper end of the pressure gauge is fixedly connected with the top of the inner side of the control groove, the other end of the mounting plate is fixedly connected with the inner wall of the inner side of the control groove, and the number of the regulating mechanisms is two.

In the above technical scheme, it is preferred, the outside of trace axle is close to one side activity of control panel and is provided with the support frame, the fixed mounting bracket that is provided with of one end of support frame, the fixed jam plate that is provided with in front end of carriage release lever, the fixed carriage that is provided with in front end of big rack, the inboard of pinion disc is fixed and is provided with the axis of rotation, the inboard slip of carriage is provided with the slide rail.

In the above technical solution, preferably, the rotating shaft penetrates through the inside of the water guard, the rotating shaft is movably connected with the water guard, one end of the sliding rail is fixedly connected with one end of the water guard, a connecting hole is opened at one end of the water guard close to the front side of the sliding rail, the diameter of the large gear disc is larger than that of the small gear disc, and one end of the limiting rod is fixedly connected with one end of the moving rod.

In the above technical scheme, it is preferred, the outside of restriction lever is close to one side of activity groove and the inboard sliding connection of adjustment tank, the shape of bull gear dish is the L font, the lower extreme of mounting bracket and the upper end fixed connection of control panel, the one end of mounting bracket and the one end of breakwater are close to the opposite side fixed connection of slide rail, it is corresponding between jam plate and the connecting hole.

In the above technical scheme, preferably, the lower extreme of control tank is fixed and is provided with communicating pipe, the lower extreme of communicating pipe is fixed and is provided with the water inlet, the lower extreme of water inlet is fixed and is provided with the base, the fixed delivery port that is provided with of one end of water inlet.

In the above technical scheme, it is preferred that the quantity of communicating pipe has two sets ofly, two sets of all be connected between communicating pipe and the control tank, another group the lower extreme of communicating pipe and the upper end fixed connection of delivery port, two sets of all link up mutually between communicating pipe and the control tank, the maintenance mouth is installed to the one end of control tank.

Compared with the prior art, the invention has the following beneficial effects:

1. the pressure plate is pushed to move through liquid pressure, the pressure plate is made to drive the fixing rod to move, the fixing rod pushes the connecting plate to move, the connecting plate stretches the first spring, the second spring is simultaneously driven by the pinion rack to rotate the transmission gear, the transmission gear drives the movable plate to rotate through the transmission shaft, and therefore the movable plate presses the pressure gauge, the purpose that the pressure gauge can accurately detect the liquid pressure through the pressure of the movable plate can be achieved, and therefore accuracy of pressure detection is improved.

2. Secondly drive the bull gear strip through the pressure plate simultaneously and remove and make the bull gear strip move the bull gear dish rotatory thereby make the bull gear dish drive the control panel through the trace axle and rotatory and make the control panel drive the carriage release lever through the restriction pole and remove thereby make the carriage release lever promote the jam plate and remove, can reach and be convenient for make the purpose that jam plate and connecting hole take place the dislocation, so can make liquid flow out in the inboard of control groove through pressure.

3. And big rack bar upward movement drives big gear plate rotatory, and big gear plate drives the control panel through the trace axle simultaneously and rotates to make the control panel promote the restriction pole through the adjustment tank and remove, thereby make the restriction pole drive the carriage release lever and remove, and make the carriage release lever drive the jam plate and remove, can make the upward movement of pressure plate convert into lateral shifting under the combined action of big rack bar and conversion part, thereby be convenient for control system liquid's circulation.

4. Finally, the base is placed on the ground, then the water inlet pipe is connected to the water inlet, and the water outlet pipe is connected to the water outlet, so that the aim of facilitating installation can be achieved.

Drawings

Fig. 1 is a schematic diagram of an overall structure of a precise pressure sensor according to the present invention;

fig. 2 is a schematic diagram of an internal structure of a precise pressure sensor according to the present invention;

FIG. 3 is a schematic diagram of a control mechanism of an accurate pressure sensor according to the present invention;

FIG. 4 is a schematic view of a first partial structure of a control mechanism of the precise pressure sensor according to the present invention;

FIG. 5 is a schematic diagram of a second embodiment of a control mechanism of the precise pressure sensor according to the present invention;

FIG. 6 is a schematic view of a limiting mechanism of a precise pressure sensor according to the present invention;

FIG. 7 is a schematic view of a portion of a limiting mechanism of a precision pressure sensor according to the present invention;

FIG. 8 is a schematic diagram of a switching portion of a limiting mechanism of a precise pressure sensor according to the present invention;

FIG. 9 is a partial view showing a first configuration of a converting portion of a limiting mechanism of a precise pressure sensor according to the present invention;

FIG. 10 is a second schematic diagram of a partial structure of a converting portion of a limiting mechanism of an accurate pressure sensor according to the present invention;

fig. 11 is an enlarged schematic view of a portion a of the pressure sensor according to the present invention.

In the figure: 1. a control slot; 2. a pressure plate; 3. a water baffle; 4. a communicating pipe; 5. a water inlet; 6. a base; 7. a regulating mechanism; 71. fixing the rod; 72. a connecting frame; 73. a control frame; 74. a slider; 75. a connecting plate; 76. a pinion rack; 77. a first spring; 78. a telescopic rod; 79. a second spring; 710. a fixed mount; 711. a drive shaft; 712. a transmission gear; 713. a movable plate; 714. a pressure device; 715. mounting a plate; 8. a limiting mechanism; 81. a large gear rack; 82. a pinion gear plate; 83. a conversion section; 831. a large gear plate; 832. a linkage shaft; 833. a control panel; 834. a control panel; 835. an adjustment groove; 836. a moving groove; 837. a movable groove; 838. a travel bar; 839. a restraining bar; 8310. a support frame; 8311. a mounting frame; 8312. a blocking plate; 84. a rotating shaft; 85. a carriage; 86. a slide rail; 9. a water outlet; 10. and (7) a maintenance port.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments disclosed below.

The precise pressure sensor as shown in fig. 1-11 comprises a control groove 1, a pressure plate 2 is slidably disposed at the bottom of the inner side of the control groove 1, a water baffle 3 is fixedly disposed at one side of the bottom of the inner side of the control groove 1, which is close to the pressure plate 2, a regulating mechanism 7 is disposed at the upper end of the pressure plate 2, a limiting mechanism 8 is disposed at the upper end of the pressure plate 2, which is close to the front side of the regulating mechanism 7, the regulating mechanism 7 comprises a fixing rod 71 fixedly disposed at the upper end of the pressure plate 2, a connecting frame 72 is slidably disposed at the outer side of the fixing rod 71, a control frame 73 is fixedly disposed at the moving side of the connecting frame 72, a sliding block 74 is slidably disposed at the inner side of the control frame 73, a connecting plate 75 is fixedly disposed at the moving side of the sliding block 74, a pinion bar 76 is fixedly disposed at the front end of the connecting plate 75, a first spring 77 is movably disposed at the outer side of the fixing rod 71, a telescopic rod 78 is fixedly disposed at the upper end of the connecting frame 72, a second spring 79 is movably arranged on the outer side of the telescopic rod 78, a fixed frame 710 is fixedly arranged at the front end of the control frame 73, a transmission shaft 711 is movably arranged on the inner side of the fixed frame 710, a transmission gear 712 is fixedly arranged on one side, close to the fixed frame 710, of the outer side of the transmission shaft 711, the limiting mechanism 8 comprises a large gear strip 81 fixedly arranged at the upper end of the control groove 1, close to the front side of the fixed rod 71, a small gear disc 82 is arranged at the rear end of the large gear strip 81 in a meshed manner, a conversion part 83 is arranged at the rear end of the small gear disc 82, the conversion part 83 comprises a large gear disc 831 arranged at the rear end of the small gear disc 82 in a meshed manner, a linkage shaft 832 is fixedly arranged on the inner side of the large gear disc 831, a control plate 833 is movably arranged on one side, close to the outer side of the large gear disc 831, and a control plate 834 is fixedly arranged on one side, close to the outer side of the control plate 833, of the linkage shaft 832, the regulating groove 835 is opened to the one end of control panel 834, and the shifting chute 836 is opened to the front end of control panel 833, and movable groove 837 is opened to the one end of control panel 833, link up between movable groove 837 and the shifting chute 836 mutually, and the inboard slip of shifting chute 836 is provided with carriage lever 838, and the inboard slip of movable groove 837 is provided with the restriction pole 839.

One end of the transmission shaft 711 is fixedly provided with a movable plate 713, the upper end of the movable plate 713 is movably provided with a pressure gauge 714, one end of the control frame 73 is fixedly provided with a mounting plate 715, the rear end of the pinion rack 76 is meshed with the front end of the transmission gear 712, the upper end of the fixed rod 71 is fixedly connected with the lower end of the connecting plate 75 close to the outer side of the fixed rod 71, the lower end of the second spring 79 is fixedly connected with the upper end of the connecting frame 72 close to the outer side of the telescopic rod 78, the lower end of the first spring 77 is fixedly connected with the upper end of the connecting frame 72 close to the front side of the second spring 79, the upper end of the second spring 79 is fixedly connected with the lower end of the connecting plate 75 close to the rear side of the first spring 77, the upper end of the telescopic rod 78 is fixedly connected with the lower end of the connecting plate 75 close to the inner side of the second spring 79, the upper end of the pressure gauge 714 is fixedly connected with the top of the inner side of the control groove 1, the other end of the mounting plate 715 is fixedly connected with the inner side inner wall of the control groove 1, and the number of the two sets of the adjusting mechanisms 7 are provided.

In use, first, the liquid flows into the inner side of the control tank 1, so that the pressure of the liquid pushes the pressure plate 2 to move upwards in the inner side of the control tank 1, the pressure plate 2 drives the fixing rod 71 upwards to move, the fixing rod 71 slides upwards along the connecting frame 72, meanwhile, the fixing rod 71 pushes the connecting plate 75 upwards, the connecting plate 75 drives the sliding block 74 to slide upwards in the inner side of the control frame 73, meanwhile, the connecting plate 75 stretches the first spring 77, and the connecting plate 75 stretches the second spring 79 and the telescopic rod 78 upwards, and the connecting plate 75 drives the pinion rack 76 to move upwards, and the pinion rack 76 drives the pinion 712 to rotate due to the meshing connection between the pinion rack 76 and the pinion 712, the transmission gear 712 drives the transmission shaft 711 to rotate in the inner side of the fixed frame 710, and simultaneously the transmission gear 712 drives the movable plate 713 to rotate, so that the movable plate 713 presses the pressure gauge 714, and the pressure gauge 714 monitors the pressure of the liquid, the pressure plate 2 is pushed to move by the liquid pressure, the pressure plate 2 drives the fixed rod 71 to move, the fixed rod 71 pushes the connecting plate 75 to move, the connecting plate 75 stretches the first spring 77 and the second spring 79, the pinion rack 76 drives the transmission gear 712 to rotate, and the transmission gear 712 drives the movable plate 713 to rotate through the transmission shaft 711, so that the movable plate 713 presses the pressure gauge 714, and the purpose of accurately detecting the liquid pressure by the pressure gauge 714 through the movable plate 713 can be achieved, and the accuracy of detecting the pressure can be improved.

A support bracket 8310 is movably arranged on one side, close to the control panel 834, of the outer side of the linkage shaft 832, a mounting bracket 8311 is fixedly arranged at one end of the support bracket 8310, a blocking plate 8312 is fixedly arranged at the front end of the moving rod 838, a sliding frame 85 is fixedly arranged at the front end of the large gear strip 81, a rotating shaft 84 is fixedly arranged on the inner side of the small gear disc 82, a sliding rail 86 is slidably arranged on the inner side of the sliding frame 85, the rotating shaft 84 penetrates through the inside of the water baffle 3, the rotating shaft 84 is movably connected with the water baffle 3, one end of the sliding rail 86 is fixedly connected with one end of the water baffle 3, a connecting hole is formed in the front side, close to the sliding rail 86, of one end of the large gear disc 831, the diameter of the small gear disc 82 is larger than that of the large gear disc 831, one end of the limiting rod 839 is fixedly connected with one end of the moving rod 838, one side, close to the movable groove 837, is slidably connected with the inner side of the adjusting groove 835, the outer side of the limiting rod 839, the large gear disc 831 is in an L-shaped shape, the lower end of the mounting bracket 8311 is fixedly connected with the other side of the water baffle 833, and the connecting hole is correspondingly connected with the upper end of the connecting rail 8312.

At the same time, the pressure plate 2 drives the big gear strip 81 to move upwards, and the big gear strip 81 drives the sliding rack 85 to slide along the sliding rail 86, and since the big gear strip 81 and the small gear plate 82 are connected in a meshing manner, the big gear strip 81 drives the small gear plate 82 to rotate around the rotating shaft 84, and the small gear plate 82 is connected in a meshing manner with the big gear plate 831, so that the big gear plate 82 drives the big gear plate 831 to rotate, and the big gear plate 831 drives the linking shaft 832, so that the linking shaft 832 drives the control plate 834 to rotate, and the control plate 834 drives the limiting rod 839 to slide in the inner side of the movable groove 837 through the adjusting groove 835, and the limiting rod 839 drives the moving rod 838 to slide in the inner side of the movable groove 836, so that the moving rod 831 drives the blocking plate 8312 to move, so that the blocking plate 8312 is misaligned with the connecting hole, so that the liquid can flow out through the connecting hole, the big gear strip 81 is simultaneously driven by the pressure plate 81 and the moving rod 81 drives the moving rod 831 to rotate, so that the big gear plate 831 drives the linking shaft 832 to move, so that the moving rod 8312 and the linking rod 8312 can move, so that the blocking plate 839 can move, and the pressure plate can move, and the blocking plate 839 can move, so that the pressure plate can move, and the pressure plate can move around the pressure plate 839, and the pressure plate can move around the shifting plate 839, and the shifting plate can be changed, and the pressure plate 8312, so that the pressure plate can be changed, and the pressure plate 839, thereby facilitating control of the flow of the control liquid.

The fixed communicating pipe 4 that is provided with of lower extreme of control tank 1, the fixed water inlet 5 that is provided with of lower extreme of communicating pipe 4, the fixed base 6 that is provided with of lower extreme of water inlet 5, the fixed delivery port 9 that is provided with of one end of water inlet 5, there are two sets of communicating pipe 4 quantity, two sets of communicating pipe 4 all are connected with between the control tank 1, the lower extreme of another group communicating pipe 4 and the upper end fixed connection of delivery port 9, two sets of communicating pipe 4 all link up mutually with between the control tank 1, maintenance mouth 10 is installed to the one end of control tank 1.

The ease of installation is achieved by placing the base 6 on the ground and then connecting the inlet pipe to the inlet 5 and the outlet pipe to the outlet 9.

The working principle is as follows: in use, a worker first puts the base 6 on the ground, then connects the inlet pipe to the inlet 5, and then connects the outlet pipe to the outlet 9, when the liquid of the inlet pipe flows to the inside of the inlet 5, and circulates the liquid through the communication pipe 4 to the inside of the control tank 1 by pressure, so that the pressure of the liquid pushes the pressure plate 2 to move upward in the inside of the control tank 1, and the pressure plate 2 pulls the fixing rod 71 upward, and causes the fixing rod 71 to slide upward along the connecting frame 72, while the fixing rod 71 pushes the connecting plate 75 upward, and causes the connecting plate 75 to slide upward in the inside of the control frame 73, while the connecting plate 75 pulls the No. one spring 77, and causes the connecting plate 75 to pull the No. two springs 79, the telescopic rod 78 upward, and the connecting plate 75 to move the pinion rack 76 upward, since the pinion rack 76 is in meshing connection with the transmission gear 712, the pinion 76 drives the transmission gear 712 to rotate, and causes the transmission gear 712 to drive the transmission shaft 711 to rotate in the inside of the rack 710, while the transmission gear 712 drives the pinion 713 to rotate, so that the pressure plate 80 and the rack 82 rotates the rack 82, and the rack 82 connects the rack 82 to drive the pinion 82 to rotate, and the rack 82 to rotate the rack 82 to drive the pinion 82 to rotate, so that the linking shaft 832 drives the control panel 834 to rotate, and the control panel 834 drives the restriction lever 839 to slide in the inner side of the movable slot 837 through the adjustment slot 835, and the restriction lever 839 drives the moving lever 838 to slide in the inner side of the moving slot 836, so that the moving lever 838 drives the blocking plate 8312 to move, so that the blocking plate 8312 is misaligned with the connecting hole, so that the liquid can flow out through the connecting hole, and the liquid flows into the inner side of the water outlet 9 through another set of connection pipes 4, so that the liquid flows out through the water outlet pipe, when the liquid flow is small, the liquid pressure is small, and the pressure plate 2 is always attached to the bottom of the inner side of the control slot 1 under the elastic action of the first spring 77 and the second spring 79, so that the pressure of the liquid cannot move the pressure plate 2, and the pressure plate 2 does not move the large gear rack 81, so that the misalignment between the blocking plate 8312 and the connecting hole is not generated, so that the liquid cannot flow to the water outlet 9, the pressure plate 2 is pushed by the liquid pressure, and the pressure plate 71 drives the pressure plate 71 to move and the pressure plate 71 drives the pressure plate 80 to move, so that the pressure plate 80 drives the pressure plate 75 to drive the pressure plate 713 through the pressure plate 80, so that the pressure plate 42 is accurately detected by the pressure plate 80 and the pressure plate 714, so that the pressure plate 42 is accurately detected by the pressure plate 714 and the pressure plate 42, so that the pressure plate 714 and the pressure plate 42 is accurately detected by the pressure plate 714, the pressure plate 42 is increased by the pressure plate 714, can reach and be convenient for make jam plate 8312 and connecting hole take place the purpose of dislocation, so can make liquid flow out in the inboard of control trough 1 through pressure, and bull gear strip 81 rebound drives bull gear dish 831 rotatory, while bull gear dish 831 drives the control panel 834 rotation through interlock axle 832, and make control panel 834 promote the restriction pole 839 through adjustment tank 835 and remove, thereby make restriction pole 839 drive the carriage release 838 removal, and make carriage release 838 drive jam plate 8312 and remove, can make the rebound of pressure plate 2 convert into lateral shifting through the combined action of bull gear strip 81 with converting part 83, thereby be convenient for control the circulation of system liquid.

In the present invention, the terms "mounting," "connecting," "fixing," and the like are used in a broad sense, for example, "connecting" may be a fixed connection, a detachable connection, or an integral connection; may be connected with each other or indirectly connected with each other through an intermediate medium. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description herein, the appearances of the phrase "one embodiment," "some embodiments," "a specific embodiment," or the like, in various places in the specification are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The accurate pressure sensor comprises a control groove (1), and is characterized in that a pressure plate (2) is arranged at the bottom of the inner side of the control groove (1) in a sliding manner, a water baffle (3) is fixedly arranged at one side, close to the pressure plate (2), of the bottom of the inner side of the control groove (1), an adjusting mechanism (7) is arranged at the upper end of the pressure plate (2), and a limiting mechanism (8) is arranged at the front side, close to the adjusting mechanism (7), of the upper end of the pressure plate (2);

the adjusting and controlling mechanism (7) comprises a fixing rod (71) fixedly arranged at the upper end of the pressure plate (2), a connecting frame (72) is arranged on the outer side of the fixing rod (71) in a sliding mode, a control frame (73) is fixedly arranged on the connecting frame (72) in a moving mode, a sliding block (74) is arranged on the inner side of the control frame (73) in a sliding mode, a connecting plate (75) is fixedly arranged on the sliding block (74) in a moving mode, a small gear strip (76) is fixedly arranged at the front end of the connecting plate (75), a first spring (77) is movably arranged on the outer side of the fixing rod (71) close to the upper side of the connecting frame (72), an expansion rod (78) is fixedly arranged at the upper end of the connecting frame (72), a second spring (79) is movably arranged on the outer side of the expansion rod (78), a fixing frame (710) is fixedly arranged at the front end of the control frame (73), a transmission shaft (711) is movably arranged on the inner side of the fixing frame (710), and a transmission gear (712) is fixedly arranged on the outer side of the transmission shaft (711) close to the fixing frame (710);

restriction mechanism (8) are close to big rack (81) of dead lever (71) front side including fixed setting in control groove (1) upper end, the rear end meshing of big rack (81) is provided with pinion disc (82), the rear end of pinion disc (82) is provided with converting part (83), converting part (83) set up gear wheel dish (831) at pinion disc (82) rear end including the meshing, the inboard fixed interlock axle (832) that is provided with of pinion disc (831), one side activity that the outside of interlock axle (832) is close to pinion disc (831) is provided with control panel (833), the outside of interlock axle (832) is close to one side of control panel (833) and fixes and is provided with control panel (834), regulation groove (835) have been seted up to the one end of control panel (833), removal groove (836) have been seted up to the front end of control panel (833), activity groove (837) have been seted up to the one end of control panel (833), link up between activity groove (837) and removal groove (836), the inboard slip movable groove (836) that moves is provided with movable rod (837), the inboard slip movable rod (839) is provided with restriction pole (839).

2. A precise pressure sensor according to claim 1, wherein a movable plate (713) is fixedly arranged at one end of the transmission shaft (711), a pressure device (714) is movably arranged at the upper end of the movable plate (713), a mounting plate (715) is fixedly arranged at one end of the control frame (73), the rear end of the pinion rack (76) is engaged with the front end of the transmission gear (712), and the upper end of the fixed rod (71) is fixedly connected with the lower end of the connecting plate (75).

3. An accurate pressure sensor as claimed in claim 2, wherein the upper end of the first spring (77) is fixedly connected with the lower end of the connecting plate (75) near the outer side of the fixing rod (71), the lower end of the second spring (79) is fixedly connected with the upper end of the connecting frame (72) near the outer side of the telescopic rod (78), the lower end of the first spring (77) is fixedly connected with the upper end of the connecting frame (72) near the front side of the second spring (79), and the upper end of the second spring (79) is fixedly connected with the lower end of the connecting plate (75) near the rear side of the first spring (77).

4. An accurate pressure sensor according to claim 3, characterized in that the upper end of the telescopic rod (78) is fixedly connected with the inner side of the lower end of the connecting plate (75) close to the second spring (79), the upper end of the pressure device (714) is fixedly connected with the top of the inner side of the control groove (1), the other end of the mounting plate (715) is fixedly connected with the inner wall of the inner side of the control groove (1), and the number of the regulating mechanism (7) is two.

5. The accurate pressure sensor according to claim 1, wherein a support frame (8310) is movably disposed at one side of the outer side of the linkage shaft (832) close to the control panel (834), a mounting frame (8311) is fixedly disposed at one end of the support frame (8310), a blocking plate (8312) is fixedly disposed at the front end of the moving rod (838), a sliding frame (85) is fixedly disposed at the front end of the large gear rack (81), a rotating shaft (84) is fixedly disposed at the inner side of the small gear disk (82), and a sliding rail (86) is slidably disposed at the inner side of the sliding frame (85).

6. The accurate pressure sensor according to claim 5, wherein the rotating shaft (84) penetrates through the inside of the water baffle (3), the rotating shaft (84) is movably connected with the water baffle (3), one end of the sliding rail (86) is fixedly connected with one end of the water baffle (3), a connecting hole is formed in one end of the water baffle (3) close to the front side of the sliding rail (86), the diameter of the large gear disc (831) is larger than that of the small gear disc (82), and one end of the limiting rod (839) is fixedly connected with one end of the moving rod (838).

7. The accurate pressure sensor according to claim 6, wherein one side of the outer side of the limiting rod (839) close to the movable groove (837) is slidably connected with the inner side of the adjusting groove (835), the large gear disc (831) is in an L shape, the lower end of the mounting frame (8311) is fixedly connected with the upper end of the control plate (833), one end of the mounting frame (8311) is fixedly connected with the other side of one end of the water baffle (3) close to the sliding rail (86), and the blocking plate (8312) corresponds to the connecting hole.

8. The accurate pressure sensor according to claim 1, wherein a communication pipe (4) is fixedly arranged at the lower end of the control tank (1), a water inlet (5) is fixedly arranged at the lower end of the communication pipe (4), a base (6) is fixedly arranged at the lower end of the water inlet (5), and a water outlet (9) is fixedly arranged at one end of the water inlet (5).

9. The accurate pressure sensor according to claim 8, wherein the number of the communicating pipes (4) is two, two groups of the communicating pipes (4) are connected with the control tank (1), the lower end of the other group of the communicating pipes (4) is fixedly connected with the upper end of the water outlet (9), the two groups of the communicating pipes (4) are communicated with the control tank (1), and one end of the control tank (1) is provided with a maintenance port (10).