Pressure measuring device and force measuring system

Abstract

This application relates to the technical field of pressure measurement devices, and in particular, to a pressure measurement device and a force measurement system. The pressure measurement device includes a first positioning member, a second positioning member, and a measurement mechanism; the first positioning member and the second positioning member are arranged at intervals; the measurement mechanism is located between the first positioning member and the second positioning member, and the measurement mechanism senses the pressure between the object to be measured and the crimping member; a first force-receiving protrusion is formed on one side of the measurement mechanism and / or a second force-receiving protrusion is formed on the other side of the measurement mechanism; the first positioning member abuts against the first force-receiving protrusion, and the first positioning member can be flipped by a first preset angle around a first axis; the second positioning member abuts against the second force-receiving protrusion, and the second positioning member can be flipped by a second preset angle around a second axis; the first axis is perpendicular to the second axis. By providing the first force-receiving protrusion and / or the second force-receiving protrusion, this application enables the first positioning member and the second positioning member to adapt to the flatness of the object to be measured, achieving a more accurate pressure measurement effect.

Description

Technical Field

[0001] The present application relates to the technical field of pressure measurement devices, and more particularly to a pressure measurement device and a force measurement system. Background Art

[0002] During the installation of existing force gauges, due to the uneven installation surface of the rock wall, it is impossible to ensure absolute parallelism with the pressure contact surface of the force gauge, resulting in uneven local stress on the force gauge, inaccurate pressure measurement, and large test deviations. Summary of the Invention

[0003] The purpose of the present application is to provide a pressure measurement device and a force measurement system to achieve a more accurate pressure measurement effect.

[0004] The present application provides a pressure measurement device, including a first positioning member, a second positioning member, and a measurement mechanism;

[0005] The first positioning member and the second positioning member are arranged at intervals. One of the first positioning member and the second positioning member is used to be in contact with the object to be measured, and the other is used to be in contact with the pressing member; the measurement mechanism is located between the first positioning member and the second positioning member, and the measurement mechanism is used to sense the pressure between the object to be measured and the pressing member;

[0006] On one side of the measurement mechanism, a first force-bearing protrusion is formed and / or on the other side of the measurement mechanism, a second force-bearing protrusion is formed; the first positioning member abuts against the first force-bearing protrusion, and the first positioning member can rotate a first preset angle around a first axis; the second positioning member abuts against the second force-bearing protrusion, and the second positioning member can rotate a second preset angle around a second axis; the first axis is perpendicular to the second axis.

[0007] In the above technical solution, further, through holes are correspondingly formed in the middle of the first positioning member, the second positioning member, and the measurement mechanism, so that the limiting rod sequentially passes through the first positioning member, the second positioning member, and the measurement mechanism.

[0008] In the above technical solution, further, the number of the first force-bearing protrusions is two, and they are arranged at intervals on both sides of the through hole; the protruding surface of the first force-bearing protrusion is a cylindrical surface, and the axes of the two first force-bearing protrusions are collinear;

[0009] The number of the second force-bearing protrusions is two, and they are arranged at intervals on both sides of the through hole; the protruding surface of the second force-bearing protrusion is a cylindrical surface, and the axes of the two second force-bearing protrusions are collinear;

[0010] The distance between the two first force-bearing protrusions is equal to the distance between the two second force-bearing protrusions.

[0011] In the above technical solution, further, the first positioning member is provided with a first positioning groove, and the first force-receiving protrusion is clamped in the first positioning groove; the second positioning member is provided with a second positioning groove, and the second force-receiving protrusion is clamped in the second positioning groove.

[0012] In the above technical solution, further, the measuring mechanism includes a middle cushion sleeve, a first strain gauge, a second strain gauge and a circuit board;

[0013] The first force-receiving protrusion and the second force-receiving protrusion are located on both sides of the middle cushion sleeve, and the first force-receiving protrusion and the second force-receiving protrusion are pressed to deform the middle cushion sleeve;

[0014] The first strain gauge and the second strain gauge are installed on both sides of the middle cushion sleeve. Among them, the first strain gauge and the first force-receiving protrusion are located on different sides of the middle cushion sleeve and are correspondingly arranged; the second strain gauge and the second force-receiving protrusion are located on different sides of the middle cushion sleeve and are correspondingly arranged;

[0015] The circuit board is electrically connected to the first strain gauge and the second strain gauge to convert the deformation amount of the middle cushion sleeve into a force value.

[0016] In the above technical solution, further, installation grooves and wiring grooves that communicate with each other are respectively formed on both sides of the middle cushion sleeve;

[0017] The first strain gauge and the second strain gauge are respectively installed in the installation grooves on the corresponding sides, and the connection lines between the first strain gauge and the circuit board and the connection lines between the second strain gauge and the circuit board are respectively installed in the wiring grooves on the corresponding sides.

[0018] In the above technical solution, further, the measuring mechanism further includes a housing;

[0019] The housing forms a first accommodating portion and a second accommodating portion that communicate with each other;

[0020] The first accommodating portion forms a first cavity, and the middle cushion sleeve is installed in the first cavity; the first accommodating portion is provided with a first opening and a second opening, and the first force-receiving protrusion extends out from the first opening, and the second force-receiving protrusion extends out from the second opening;

[0021] The second accommodating portion forms a second cavity, and the circuit board is installed in the second cavity.

[0022] In the above technical solution, further, the measuring mechanism further includes a plug socket, and the plug socket is detachably installed in the second accommodating portion, and the plug socket is used for connecting the circuit board and a telecommunication processor.

[0023] In the above technical solution, further, the housing is filled with sealant.

[0024] This application also provides a force measuring system, including the pressure measuring device described in the above solution.

[0025] Compared with the prior art, the beneficial effects of this application are as follows:

[0026] The pressure measuring device provided by this application is provided with the first force-bearing protrusion and / or the second force-bearing protrusion, so that the first positioning member and the second positioning member can adapt to the flatness of the object to be measured, achieving a more accurate pressure measurement effect.

[0027] This application also provides a force measuring system, including the pressure measuring device described in the above solution. Based on the above analysis, it can be seen that the force measuring system also has the above beneficial effects and will not be elaborated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific embodiments of this application or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of this application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0029] Figure 1 It is a schematic structural diagram of the pressure measuring device provided by this application;

[0030] Figure 2 It is an exploded view of the pressure measuring device provided by this application from the first perspective;

[0031] Figure 3 It is an exploded view of the pressure measuring device provided by this application from the second perspective;

[0032] Figure 4 It is a schematic structural diagram of the measuring mechanism provided by this application.

[0033] In the figure: 101 - first positioning member; 102 - second positioning member; 103 - measuring mechanism; 104 - object to be measured; 105 - crimping member; 106 - first force-bearing protrusion; 107 - second force-bearing protrusion; 108 - through hole; 109 - limiting rod; 110 - first positioning groove; 111 - second positioning groove; 112 - middle cushion sleeve; 113 - first strain gauge; 114 - second strain gauge; 115 - circuit board; 116 - installation groove; 117 - wiring groove; 118 - housing; 119 - first accommodating portion; 120 - second accommodating portion; 121 - plug socket; 122 - upper cover; 123 - housing body; 124 - first axis; 125 - second axis; 126 - first opening; 127 - second opening. Detailed implementation manners

[0034] The technical solutions of the present application will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some but not all of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0035] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0036] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0037] Embodiment 1

[0038] See Figures 1 to 4 As shown, the pressure measurement device provided by the present application includes a first positioning member 101, a second positioning member 102, and a measurement mechanism 103; the first positioning member 101 and the second positioning member 102 are arranged at intervals, and one of the first positioning member 101 and the second positioning member 102 is used to be in contact with the object to be measured 104. Specifically, the object to be measured 104 can be the installation surface of an object such as a rock wall; the other of the first positioning member 101 and the second positioning member 102 is used to be in contact with the pressing member 105, and the pressing member 105 can be a force-applying object such as a tray or a pressing plate; the measurement mechanism 103 is located between the first positioning member 101 and the second positioning member 102, and the measurement mechanism 103 is used to sense the pressure between the object to be measured 104 and the pressing member 105.

[0039] A first force-bearing protrusion 106 is formed on one side of the measurement mechanism 103 and / or a second force-bearing protrusion 107 is formed on the other side of the measurement mechanism 103; the above solution has three cases:

[0040] First, the first positioning member 101 abuts against the first force-receiving protrusion 106, and the first positioning member 101 can be flipped by a first preset angle about the first axis 124. That is to say, the first positioning member 101 can be flipped with the first axis 124 as the axis to adapt to the inclination angle of the object to be measured 104 in the first direction, so that the pressure received by the first positioning member 101 is all applied to the first force-receiving protrusion 106, and the first positioning member 101 rotates about the first axis 124, simplifying the movement path of the first positioning member 101, making the pressure application position on this side clear, so that the measuring mechanism 103 can accurately measure the pressure.

[0041] Second, the second positioning member 102 abuts against the second force-receiving protrusion 107, and the second positioning member 102 can be flipped by a second preset angle about the second axis 125. That is to say, the second positioning member 102 can be flipped with the second axis 125 as the axis to adapt to the inclination angle of the object to be measured 104 in the second direction, so that the pressure received by the second positioning member 102 is all applied to the second force-receiving protrusion 107, and the second positioning member 102 rotates about the second axis 125, simplifying the movement path of the second positioning member 102, making the pressure application position on this side clear, so that the measuring mechanism 103 can accurately measure the pressure.

[0042] Third, further, the two sides of the measuring mechanism 103 are respectively provided with a first force-receiving protrusion 106 and a second force-receiving protrusion 107, so that the first positioning member 101 can be flipped with the first axis 124 as the axis, the second positioning member 102 can be flipped with the second axis 125 as the axis, and the first axis 124 is perpendicular to the second axis 125, which is equivalent to forming a perpendicular X-axis and Y-axis. No matter how the inclination direction of the object to be measured 104 is, it can be decomposed on the first axis 124 and the second axis 125, so that the device can achieve the adjustment of flatness in two perpendicular directions at the same time, thus adapting to the surface of the object to be measured 104, making the device have a wider adaptation range.

[0043] All the pressure received by the first positioning member 101 is applied to the first force-receiving protrusion 106. All the pressure received by the first positioning member 101 is applied to the first force-receiving protrusion 106. The non-uniform acting pressure is concentrated on the cross universal joint structure formed by the first force-receiving protrusion 106 and the second force-receiving protrusion 107, and no other components decompose the pressure, so that the measuring mechanism 103 can measure the pressure more accurately.

[0044] In an optional solution of this embodiment, through holes 108 are correspondingly opened in the middle parts of the first positioning member 101, the second positioning member 102 and the measuring mechanism 103, so that the limiting rod 109 passes through the first positioning member 101, the second positioning member 102 and the measuring mechanism 103 in sequence.

[0045] In this embodiment, generally, a limiting rod 109 such as a rock bolt is provided on the rock wall. One end of the rock bolt is connected to the rock wall. The rock bolt passes through the pressure testing device, and the other end of the rock bolt is connected to the tray to ensure the fixation of the pressure testing device and prevent radial displacement between the first positioning member 101, the second positioning member 102 and the measuring mechanism 103, thereby achieving a better pressure testing effect.

[0046] It should be noted that the diameter of the through hole 108 is larger than the diameter of the limiting rod 109, so that the first positioning member 101 and the second positioning member 102 can achieve the function of flipping.

[0047] In an alternative solution of this embodiment, the number of the first force - receiving protrusions 106 is two, and they are spaced on both sides of the through hole 108 to ensure balanced force on both sides of the device; the convex surface of the first force - receiving protrusion 106 is a cylindrical surface, and the axes of the two first force - receiving protrusions 106 are collinear to ensure that the flipping guiding directions for the first positioning member 101 are the same; the number of the second force - receiving protrusions 107 is two, and they are spaced on both sides of the through hole 108; the convex surface of the second force - receiving protrusion 107 is a cylindrical surface, and the axes of the two second force - receiving protrusions 107 are collinear. The setting principle of the second force - receiving protrusion 107 is the same as that of the first force - receiving protrusion 106, and will not be elaborated here.

[0048] The distance between the two first force - receiving protrusions 106 is equal to the distance between the two second force - receiving protrusions 107, and the first axis 124 and the second axis 125 are perpendicularly arranged. When the first positioning member 101 and the second positioning member 102 are flipped, the applied pressure can be evenly distributed on both sides, so that the measuring mechanism 103 can measure the pressure more accurately.

[0049] In an alternative solution of this embodiment, the first positioning member 101 is provided with a first positioning groove 110, and the first force - receiving protrusion 106 is clamped in the first positioning groove 110; the second positioning member 102 is provided with a second positioning groove 111, and the second force - receiving protrusion 107 is clamped in the second positioning groove 111, so that there is no radial offset between the first positioning member 101 and the first force - receiving protrusion 106, and there is no radial offset between the second positioning member 102 and the second force - receiving protrusion 107, further ensuring the accuracy of the measured pressure.

[0050] Embodiment Two

[0051] The pressure measuring device in this Embodiment Two is an improvement based on the above - mentioned embodiment. The technical content disclosed in the above - mentioned embodiment will not be repeatedly described, and the content disclosed in the above - mentioned embodiment also belongs to the content disclosed in this Embodiment Two.

[0052] See Figures 2 to 4As shown, in an alternative solution of this embodiment, the measuring mechanism 103 includes a middle cushion sleeve 112, a first strain gauge 113, a second strain gauge 114, and a circuit board 115; the first force receiving protrusion 106 and the second force receiving protrusion 107 are located on both sides of the middle cushion sleeve 112, and the first force receiving protrusion 106 and the second force receiving protrusion 107 are pressed to deform the middle cushion sleeve 112; the first strain gauge 113 and the second strain gauge 114 are installed on both sides of the middle cushion sleeve 112; specifically, the first strain gauge 113 and the first force receiving protrusion 106 are located on opposite sides of the middle cushion sleeve 112 and are correspondingly arranged, and the second strain gauge 114 and the second force receiving protrusion 107 are located on opposite sides of the middle cushion sleeve 112 and are correspondingly arranged. When the first force receiving protrusion 106 and the second force receiving protrusion 107 are pressed to cause the middle cushion sleeve 112 to deform, it further drives the first strain gauge 113 and the second strain gauge 114 located on opposite sides and correspondingly arranged to generate a strain effect, which is used to measure the deformation amount of the middle cushion sleeve 112 under force.

[0053] The circuit board 115 is electrically connected to the first strain gauge 113 and the second strain gauge 114 to convert the deformation amount of the middle cushion sleeve 112 into a force value. Specifically, the circuit board 115 is a bridge strain gauge circuit that uses adjustable electronic components to calibrate and unify the electrical signals of the force deformation measured by the strain gauges. It is a strain gauge calibration and adjustment circuit board 115.

[0054] In an alternative solution of this embodiment, installation grooves 116 and wire grooves 117 that communicate with each other are respectively formed on both sides of the middle cushion sleeve 112; the first strain gauge 113 and the second strain gauge 114 are respectively installed in the installation grooves 116 on the corresponding sides, and the connection lines between the first strain gauge 113 and the circuit board 115 and the connection lines between the second strain gauge 114 and the circuit board 115 are respectively installed in the wire grooves 117 on the corresponding sides, preventing the first strain gauge 113, the second strain gauge 114, and the communication signal lines from being damaged during the tilting adjustment process of the first positioning member 101 and the second positioning member 102.

[0055] In an alternative solution of this embodiment, the measuring mechanism 103 further includes a housing 118; the housing 118 forms a first accommodating portion 119 and a second accommodating portion 120 that communicate with each other; the first accommodating portion 119 forms a first cavity, and the middle cushion sleeve 112 is installed in the first cavity; the first accommodating portion 119 is provided with a first opening 126 and a second opening 127, the first force receiving protrusion 106 extends out from the first opening 126, and the second force receiving protrusion 107 extends out from the second opening 127; the second accommodating portion 120 forms a second cavity, and the circuit board 115 is installed in the second cavity.

[0056] In this embodiment, the middle cushion sleeve 112 and the circuit board 115 are respectively installed in the first accommodating portion 119 and the second accommodating portion 120. The first accommodating portion 119 protects the middle cushion sleeve 112, preventing the middle cushion sleeve 112 from generating a force with other components, which may cause problems such as inaccurate measurement and damage to other components due to pressure.

[0057] Optionally, the housing 118 includes a detachably connected housing 123 and an upper cover 122, which facilitates the disassembly and assembly of components such as the middle cushion sleeve 112.

[0058] In an alternative embodiment of this embodiment, the measuring mechanism 103 further includes a plug socket 121, which is detachably installed in the second accommodating portion 120. The plug socket 121 is used to connect the circuit board 115 and the telecommunication processor.

[0059] In this embodiment, the plug socket 121 may specifically be an aviation plug. The plug socket 121 connects the circuit board 115 and the telecommunication processor, thereby collecting, processing, and uploading the calibrated electrical signal of the pressure measuring device to the telecommunication device. The electrical signal processor is divided into an off-line infrared or Bluetooth acquisition type telecommunication processor, a wired real-time online transmission type telecommunication processor, and a wireless real-time online transmission type telecommunication processor. The above electrical signals are uploaded to the server for centralized processing and analysis or uploaded to the cloud server for processing and analysis.

[0060] In an alternative embodiment of this embodiment, the housing 118 is filled with sealant.

[0061] In this embodiment, after the main body of the measuring mechanism 103 of the pressure measuring device is debugged and installed, an overall potting and sealing treatment process can be adopted to ensure the safety and stability of use in special environments. The main body part of the measuring mechanism 103 in the middle is not convenient to disassemble after use and can be scrapped. The recoverable aviation plug and electrical signal processor structure can be removed and recycled, and then connected to the new main body part of the measuring mechanism 103 through the aviation plug for use.

[0062] Embodiment III

[0063] Embodiment III of the present application provides a force measuring system, including the pressure measuring device of any of the above embodiments. Therefore, it has all the beneficial technical effects of the pressure measuring device of any of the above embodiments, which will not be elaborated here.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application. In addition, those skilled in the art can understand that although some of the embodiments herein include certain features included in other embodiments rather than other features, the combination of the features of different embodiments means that it is within the scope of the present application and forms different embodiments.

Claims

1. A pressure measuring device, characterized in that, It includes a first positioning member, a second positioning member and a measuring mechanism; The first positioning member and the second positioning member are arranged at intervals. One of the first positioning member and the second positioning member is used to be attached to the object to be measured, and the other is used to be attached to the crimping member. The measuring mechanism is located between the first positioning member and the second positioning member, and the measuring mechanism is used to sense the pressure between the object to be measured and the crimping member; On one side of the measuring mechanism, a first force-receiving protrusion is formed and / or on the other side of the measuring mechanism, a second force-receiving protrusion is formed. The first positioning member abuts against the first force-receiving protrusion, and the first positioning member can be flipped by a first preset angle around a first axis. The second positioning member abuts against the second force-receiving protrusion, and the second positioning member can be flipped by a second preset angle around a second axis. The first axis is perpendicular to the second axis; The measuring mechanism includes a middle bushing, a first strain gauge, a second strain gauge and a circuit board; The first force-receiving protrusion and the second force-receiving protrusion are located on both sides of the middle bushing. The first force-receiving protrusion and the second force-receiving protrusion are pressed to deform the middle bushing; The first strain gauge and the second strain gauge are installed on both sides of the middle bushing. Among them, the first strain gauge and the first force-receiving protrusion are located on different sides of the middle bushing and are correspondingly arranged. The second strain gauge and the second force-receiving protrusion are located on different sides of the middle bushing and are correspondingly arranged; The circuit board is electrically connected to the first strain gauge and the second strain gauge to convert the deformation amount of the middle bushing into a force value.

2. The pressure measuring device according to claim 1, characterized in that Through holes are correspondingly formed in the middle parts of the first positioning member, the second positioning member and the measuring mechanism, so that a limiting rod sequentially passes through the first positioning member, the second positioning member and the measuring mechanism.

3. The pressure measuring device according to claim 2, characterized in that, The number of the first force-receiving protrusions is two, and they are arranged at intervals on both sides of the through hole. The protruding surface of the first force-receiving protrusion is a cylindrical surface, and the axes of the two first force-receiving protrusions are collinear; The number of the second force-receiving protrusions is two, and they are arranged at intervals on both sides of the through hole. The protruding surface of the second force-receiving protrusion is a cylindrical surface, and the axes of the two second force-receiving protrusions are collinear; The distance between the two first force-receiving protrusions is equal to the distance between the two second force-receiving protrusions.

4. The pressure measuring device according to claim 1, characterized in that, The first positioning member is provided with a first positioning groove, and the first force-receiving protrusion is clamped in the first positioning groove. The second positioning member is provided with a second positioning groove, and the second force-receiving protrusion is clamped in the second positioning groove.

5. The pressure measuring device according to claim 1, characterized in that, Installation grooves and wire grooves that communicate with each other are respectively formed on both sides of the middle bushing; The first strain gauge and the second strain gauge are respectively installed in the installation grooves on the corresponding sides, and the connecting wires between the first strain gauge and the circuit board and the connecting wires between the second strain gauge and the circuit board are respectively installed in the wire grooves on the corresponding sides.

6. The pressure measuring device according to claim 1, characterized in that, The measuring mechanism further includes a housing; The housing forms a first accommodating part and a second accommodating part that communicate with each other; The first accommodating portion forms a first cavity, and the middle cushion sleeve is installed in the first cavity; the first accommodating portion is provided with a first opening and a second opening, the first force-bearing protrusion extends out from the first opening, and the second force-bearing protrusion extends out from the second opening; The second accommodating portion forms a second cavity, and the circuit board is installed in the second cavity.

7. The pressure measuring device according to claim 6, characterized in that, The measuring mechanism further includes a plug socket, which is detachably installed on the second accommodating portion, and the plug socket is used for connecting the circuit board and the telecommunication processor.

8. The pressure measuring device according to claim 6, characterized in that, The housing is filled with sealant.

9. A force measuring system, characterized in that, It includes the pressure measuring device according to any one of claims 1 to 8.

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