CN220542030U - Thickness gauge for membrane electrode - Google Patents

Abstract

The application provides a thickness gauge for membrane electrode, including main part, knob, measuring staff, digital display table and locating part. The knob is rotationally connected with the main body, and the measuring rod passes through the digital display meter; the first end of the knob is connected with the measuring rod, so that the knob drives the measuring rod to move in the rotating process. The first end and the second end of the knob are respectively positioned at two sides of the rotation axis of the knob. The first end and the main part of locating part are connected, and the second end of locating part can be in contact with the second end of knob at knob pivoted in-process. The spacing between the second end of the limiting piece and the main body is adjustable, wherein the spacing is the spacing in the movement direction of the measuring rod. When the thickness gauge is adopted to measure the thickness of the membrane electrode, the distance between the second end of the limiting piece and the main body can be adjusted according to the designed thickness of the membrane electrode, so that the lifting height of the measuring rod is proper, the membrane electrode can be smoothly placed under the measuring rod, and damage to the membrane electrode caused by falling of the measuring rod due to overhigh lifting height of the measuring rod can be avoided.

Description

Thickness gauge for membrane electrode

Technical Field

The application relates to the field of measuring instruments, in particular to a thickness gauge for a membrane electrode.

Background

The membrane electrode is a key component in the fuel cell, and comprises a proton membrane, and a cathode and an anode which are respectively positioned at two sides of the proton membrane. In the production process, a thickness gauge is required to detect the thickness of the membrane electrode.

The prior thickness gauge needs to be manually operated to lift a measuring rod for measurement, then the measuring rod presses the membrane electrode under the action of weights, and after the measuring rod stops moving, the thickness of the membrane electrode is displayed by a digital display meter connected with the measuring rod.

The thickness of the membrane electrode is thinner in the range of approximately 0.3-2 mm, the thicknesses of the cathode and the anode are correspondingly thinner, the lifting height of the measuring rod is completely influenced by human factors in the process of manually adopting the thickness meter to measure thickness, and the impact of the measuring rod on the membrane electrode under the action of weights is larger under the condition that the lifting height of the measuring rod is too high, so that the membrane electrode is easy to be damaged; under the condition that the lifting height of the measuring rod is insufficient, an operator can easily scratch the lower end of the measuring rod with the membrane electrode in the process of placing the membrane electrode below the measuring rod for thickness measurement, and the measured membrane electrode is damaged. The difference of the lifting heights of the measuring rods can cause the pressure difference of the dropping of the weights, so that the impact force of the measuring rods on the membrane electrode is different, and errors caused by human factors exist in the measurement result.

Disclosure of Invention

The purpose of the application is to provide a thickness gauge for a membrane electrode, so as to reduce measurement errors caused by human factors and damage to the membrane electrode in the process of measuring the thickness of the membrane electrode.

Embodiments of the present application are implemented as follows:

in a first aspect, an embodiment of the present application provides a thickness gauge for a membrane electrode, including a main body, a knob, a measuring rod, a digital display meter, and a limiting member. The knob is rotationally connected with the main body, and the measuring rod passes through the digital display meter; the first end of the knob is connected with the measuring rod, so that the knob drives the measuring rod to move in the rotating process. The first end and the second end of the knob are respectively positioned at two sides of the rotation axis of the knob.

The first end and the main part of locating part are connected, and the second end of locating part can be in contact with the second end of knob at knob pivoted in-process. The spacing between the second end of the limiting piece and the main body is adjustable, wherein the spacing is the spacing in the movement direction of the measuring rod.

In the thickness gauge for the membrane electrode provided by the technical scheme, the limiting piece is arranged, the distance between the second end of the limiting piece and the main body is adjustable, and the second end of the limiting piece can be in contact with the rotating knob, so that the pressing distance and the rotating angle range of the knob can be adjusted by adjusting the distance between the second end of the limiting piece and the main body, and the lifting height of the measuring rod is controlled.

When the thickness gauge provided by the technical scheme is adopted to measure the thickness of the membrane electrode, the distance between the second end of the limiting piece and the main body can be adjusted according to the design thickness of the membrane electrode, so that the lifting height of the measuring rod is proper, the membrane electrode can be smoothly placed under the measuring rod, and damage to the membrane electrode caused by falling of the measuring rod due to overhigh lifting height of the measuring rod can be avoided. Meanwhile, the pressing distance of the handle knob (namely the distance from the initial position of the second end of the handle knob to the second end of the limiting piece) is the same when the operator measures each time, that is to say, the lifting heights of the measuring rod each time are the same, so that measurement errors caused by different lifting heights of the measuring rod due to different pressing forces of the operator pressing the handle knob in the prior art can be avoided.

With reference to the first aspect, in some optional embodiments, the limiting member is a rigid structural member, the limiting member includes a threaded section, the threaded section is provided with external threads, the body is provided with a threaded hole, and the threaded section is connected in the threaded hole.

In the technical scheme, the limiting piece is a rigid structural piece and is not easy to deform, and the effect of limiting the rotating position of the knob in the rotating process can be better achieved. The screw thread is also more convenient to process on the rigid structural member, and the spacing between the second end of the spacing piece and the main body is more convenient to operate through threaded connection between the spacing piece and the main body.

With reference to the first aspect, in some alternative embodiments, the stop is a bolt.

The bolts are standard components, and the cost is low.

With reference to the first aspect, in some alternative embodiments, the stop is a telescoping structure, the stop being variable in length in a direction along the movement of the spindle to vary the spacing between the second end of the stop and the body.

With reference to the first aspect, in some alternative embodiments, the pressing distance of the knob is limited to 20-25 mm by the limiting member; the distance of upward movement of the stylus in the vertical direction is limited to 5-10 mm.

In combination with the first aspect, in some alternative embodiments, a weight is also attached to the first end of the knob.

Through setting up the weight for the measuring staff can press on the membrane electrode better, with the messenger measuring result is more accurate.

With reference to the first aspect, in some optional embodiments, the lower end of the measuring rod is a cylindrical pressing part, the pressing part is used for contacting with the membrane electrode to be measured, and the diameter of the pressing part is 5-10 mm.

In the technical scheme, the diameter of the pressing part is controlled to be in the range of 5-10 mm, so that enough contact area is formed between the pressing part and the membrane electrode to reduce the pressure intensity, and the risk of damaging the membrane electrode is further reduced.

With reference to the first aspect, in some optional embodiments, the main body is further provided with a carrying table, and the carrying table is located below the pressing portion.

With reference to the first aspect, in some alternative embodiments, the limiting member is disposed vertically, and the height of the limiting member is 15 to 30mm.

The height of the limiting piece is in the range of 15-30 mm, so that the limiting piece has enough length to achieve the purpose of adjusting the distance between the second end of the limiting piece and the knob.

In combination with the first aspect, in some alternative embodiments, the horizontal spacing between the centers of rotation of the handles and the spacing members is between 15 and 30mm.

Under the condition that the horizontal distance between the rotating center distance limiting pieces of the knob is in the range of 15-30 mm, the accuracy requirement for adjusting the distance between the second end of the limiting piece and the main body is low, and the adjusting is more convenient for operators.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a thickness gauge according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of another thickness gauge according to an embodiment of the present application.

Icon: 100-a main body; 200-kneading; 300-measuring rod; 310-a compacting part; 400-digital display table; 500-limiting parts; 600-bearing table; 700-weight.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present application, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use of the product of the application, are merely for convenience of description of the present application and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific direction, be configured and operated in a specific direction, and therefore should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

The application provides a thickness gauge for membrane electrode, including main part 100, install digital display table 400 and measuring staff 300 on main part 100, wherein, measuring staff 300 is used for contacting with the measured object, and measuring staff 300 passes in the digital display table 400. The digital display meter 400 measures the thickness of the measured object by measuring the position change of the measuring staff 300 before and after contacting the measured object, and displays the thickness of the object. The implementation of thickness measurement of the measured object through the cooperation of the digital display meter 400 and the measuring rod 300 is already prior art, and the principle thereof is not repeated in the present application.

The thickness gauge that this application provided still includes locating part 500 and knob 200, and wherein, knob 200 rotates with main part 100 to knob 200's first end still is connected with measuring staff 300, in order to drive measuring staff 300 and reciprocate at knob 200 pivoted in-process, for operating personnel carries out the operation of measuring thickness to the object. The limiting member 500 is mounted on the main body 100, the limiting member 500 has a first end and a second end, wherein the first end of the limiting member 500 is connected with the main body 100, and the second end of the knob 200 can rotate to contact with the second end of the limiting member 500 during rotation. The first end and the second end of the knob 200 are located at both sides of the rotation axis of the knob 200, that is, the first end and the second end of the knob 200 are located at both sides of the rotation connection position of the knob 200 and the main body 100, respectively. It is already prior art to drive the measuring rod 300 to move upwards by the knob 200, for example, a notch is provided at the first end of the knob 200, the measuring rod 300 is disposed in the notch and a groove is provided on the measuring rod 300, the solid part forming the notch in the knob 200 is located in the groove of the measuring rod 300, during the rotation of the knob 200, the solid part at the first end of the knob 200 lifts the measuring rod 300 from the groove of the measuring rod 300, so that the measuring rod 300 moves upwards, and during the upward movement of the measuring rod 300, the measuring rod 300 slides along the notch of the knob 200.

In this application, the connection between the first end of the knob 200 and the measuring rod 300 does not limit the connection between the measuring rod 300 and the end of the knob 200, and the second end of the knob 200 can rotate to contact with the second end of the limiting member 500 during the rotation process, and does not limit the contact between the end of the knob 200 and the limiting member 500. As long as the position of the knob 200 where the measuring bar 300 is connected and the position of the knob 200 where the stopper 500 contacts are located at both sides of the rotation axis of the knob 200.

In this application, through making the second end of locating part 500 contact with the knob 200 in the rotation and realizing the spacing effect to knob 200, at the in-process that operating personnel carried out the thickness measurement to the membrane electrode, through the spacing effect of locating part 500 to knob 200, the rotation angle and the push down distance of restriction knob 200, and then realize restricting the height that measuring staff 300 was lifted, so that the height that measuring staff 300 lifted and the design thickness assorted of membrane electrode that awaits measuring, and then avoid appearing the condition that the membrane electrode damaged in the measurement process because of the lifting height of measuring staff 300 is too high or too low. Wherein, the pressing distance of the knob 200 is the distance between the knob 200 and the second end of the stopper 500 in the vertical direction. Meanwhile, because the limiting part 500 has the limiting function on the knob 200, the pressing distance of the knob 200 is the same when the operator measures each time, that is, the lifting heights of the measuring rod 300 are the same each time, so that measurement errors caused by different lifting heights of the measuring rod due to different pressing forces of the operator pressing the knob in the prior art can be avoided.

Further, in the thickness gauge provided by the application, the distance between the second end of the limiting member 500 and the main body 100 is adjustable, so that the rotation range and the pressing distance of the knob 200 can be changed, and the measuring rod 300 can be lifted to different heights, so that the thickness gauge is suitable for membrane electrodes with different thickness sizes. It should be understood by those skilled in the art that the adjustment of the distance between the second end of the stopper 500 and the main body 100 to change the height of the lifting of the measuring staff 300 should be achieved, that is, the distance between the second end of the stopper 500 and the knob 200 in the movement direction of the measuring staff 300 is adjustable. The distance is the distance between the second end of the stopper 500 and the main body 100 in the rest state of the thickness gauge; the direction of this spacing is the direction of movement of the stylus 300.

Although in the thickness gauge provided in the present application, the distance between the second end of the limiting member 500 and the knob 200 in the movement direction of the measuring rod 300 can be adjusted to adapt to the membrane electrode to be measured with different thicknesses, the present application is not limited to the case of adjusting the distance between the second end of the limiting member 500 and the knob 200, and the second end of the limiting member 500 may change in position along the movement direction of the measuring rod 300, as long as there is a component along the movement direction of the measuring rod 300 in the direction of the change in position of the second end of the limiting member 500. As shown in fig. 1, the movement direction of the measuring rod 300 is a vertical direction, and the position of the second end of the limiting member 500 may be changed along the vertical direction shown by the arrow, so as to change the distance between the second end of the limiting member 500 and the knob 200 in the vertical direction, and further adjust the pressing distance of the knob 200; the position of the second end of the stopper 500 may also be changed in a non-vertical direction as indicated by an arrow in fig. 2, and the distance between the second end of the stopper 500 and the knob 200 in the vertical direction can be changed as well. The person skilled in the art can adjust the direction of the position change of the second end of the limiting member 500 according to the technical scheme provided by the application, so as to be more suitable for the actual use situation.

In the present application, the position of the second end of the stopper 500 is not limited to be changed in any direction when the stopper 500 is adjusted, and the distance between the second end of the stopper 500 and the knob 200 may be changed in the movement direction of the spindle 300.

The thickness measuring method for the membrane electrode by adopting the thickness measuring instrument comprises the following steps of: firstly, adjusting the distance between the second end of the limiting piece 500 and the main body 100 according to the design thickness of the membrane electrode to be measured, and further realizing adjustment of the pressing distance of the knob 200; then pressing the knob 200 to lift the measuring rod 300 until the knob 200 is limited by the limiting piece 500 and cannot rotate further; then the membrane electrode is placed below the lower end of the measuring rod 300; finally, the knob 200 is loosened, the measuring rod 300 is dropped to be in contact with the membrane electrode, and the thickness of the membrane electrode can be obtained by observing the reading of the digital display meter 400.

In this application, the stop 500 is preferably a rigid structural member. In the embodiment in which the rigid structural member is not easy to deform and the limiting member 500 is the rigid structural member, after the knob 200 contacts with the limiting member 500, the limiting member 500 is not easy to deform, so that the rotation angle of the knob 200 is a preset angle, and the lifting height of the measuring rod 300 is a preset height, so that the control accuracy is improved. Of course, in other embodiments, the limiting member 500 may also be an elastic member such as rubber.

In the present application, the manner of achieving the change in the distance between the second end of the stopper 500 and the main body 100 is not limited. In some embodiments of the present application, the change in the spacing between the second end of the stop 500 and the body 100 may be achieved by a change in the position of the stop 500 as a whole; in other embodiments of the present application, the position of the second end of the limiting member 500 may be changed by changing the length of the limiting member 500, so as to change the distance between the second end of the limiting member 500 and the main body 100, that is, the limiting member 500 is a telescopic structural member.

In the embodiment in which the distance between the second end of the stopper 500 and the main body 100 is changed by the change in the position of the entire stopper 500, the stopper 500 and the main body 100 are connected by a connection manner in which the relative position can be changed. Illustratively, the limiting member 500 may be slidably connected to the main body 100, rotationally connected to the main body, or threaded; the threaded connection between the limiting member 500 and the main body 100 does not mean that the limiting member 500 is connected with the main body 100 by using a threaded fastener, but the limiting member 500 is directly connected with the main body 100 by threaded fit. The second end of the limiting member 500 is an end far away from the main body 100, and it should be understood by those skilled in the art that in the above connection manner, when the limiting member 500 is slidably connected to the main body 100, the relative position between the limiting member 500 and the main body 100 can be changed by the relative sliding between the limiting member 500 and the main body 100, so as to change the distance between the second end of the limiting member 500 and the main body 100; under the condition that the limiting piece 500 is rotationally connected with the main body 100, the limiting piece 500 can change the relative position of the limiting piece 500 and the main body 100 through rotation, so that the distance between the second end of the limiting piece 500 and the main body 100 is changed; in the embodiment where the stopper 500 is screwed with the main body 100, the distance between the second end of the stopper 500 and the main body 100 may be changed by screwing the stopper 500 out of or into the main body 100.

Preferably, the limiting member 500 is connected to the main body 100 by a thread, and an operator can more precisely adjust the distance between the second end of the limiting member 500 and the main body 100 according to the number of turns of the limiting member 500 screwing in or unscrewing out of the main body 100, thereby adjusting the pressing distance of the knob 200. In the embodiment of the threaded connection between the limiting member 500 and the main body 100, it is preferable that the limiting member 500 is provided with an external thread, and the main body 100 is provided with an internal thread, that is, the main body 100 is provided with a threaded hole adapted to the limiting member 500, in this embodiment, the limiting member 500 may directly use an existing bolt, so as to be convenient for an operator to obtain.

In the embodiment in which the distance between the second end of the stopper 500 and the body 100 is changed by changing the length of the stopper 500, the length of the stopper 500 is the distance between the first end and the second end of the stopper 500, specifically, the first end of the stopper 500 is the end connected to the connection body 100, and the second end of the stopper 500 is the end contacting the knob 200.

In the above embodiment, the limiting member 500 includes a first member and a second member, where the first member and the second member can move relatively. The first component is used for being connected with the main body 100, and the specific connection mode can be movable connection or fixed connection. The second end of the limiting member 500 is located at the second part, and the length of the limiting member 500 can be changed by the relative movement between the second part and the first part, so that the distance between the second end of the limiting member 500 and the main body 100 can be changed to adjust the pressing distance of the knob 200. Because the difficulty in achieving the fixed connection between the first component and the main body 100 is small, in the preferred embodiment of the present application, the first component is fixedly connected with the main body 100, and in the case where the main body 100 and the first component are both metal structural members, the main body 100 and the first component may be welded. Of course, in other embodiments, a rotational connection or other connection between the main body 100 and the first member may be used.

In the above-described specific manner of changing the length of the stopper 500 by the relative movement between the first member and the second member, the form of the relative movement between the first member and the second member is not limited. In some embodiments, the first and second members may slide relative to each other in the length direction of the stop 500 to effect a change in the length of the stop 500; in other embodiments, the first member is threadably coupled to the second member such that the length of the stop 500 is changed by relative rotation of the first member and the second member.

To facilitate operator adjustment, in some embodiments of the present application, the stop 500 is disposed vertically. Further, in order to meet the need for measuring various thicknesses of the membrane electrode, the length of the stopper 500 is between 15 and 30mm so that there is enough space between the second end of the stopper 500 and the body 100 to be adjustable. Further, the horizontal distance between the rotation center of the knob 200 and the rotation center of the stopper 500 is between 15 mm and 30mm, so that a sufficient distance is provided between the stopper 500 and the rotation center of the knob 200, and the situation that the lifting height of the measuring rod 300 is greatly changed only by finely adjusting the distance between the second end of the stopper 500 and the main body 100 is avoided, so that the accuracy requirement for adjusting the distance between the second end of the stopper 500 and the main body 100 is low, and the adjustment by an operator is more convenient. In the preferred embodiment of the present application, the pressing distance of the knob 200 is limited to 20 to 25mm by the stopper 500 so that the distance of upward movement of the measuring staff 300 in the vertical direction is limited to 5 to 10mm to better adapt to the thickness of the membrane electrode.

In the thickness gauge provided in the present application, the thickness gauge further includes a carrying table 600 disposed on the main body 100, and further, the carrying table 600 is disposed below the measuring rod 300. The upper surface of the carrier 600 is a plane for placing the thick film electrode to be measured.

In some embodiments, the weight 700 is further provided to enable the measuring rod 300 to better compress the membrane electrode after falling into contact with the thick membrane electrode to be measured, so that the thickness measurement result of the membrane electrode is more accurate. In some embodiments, weight 700 is fixedly attached to spindle 300.

In some embodiments, the lower end of the measuring rod 300 is a cylindrical pressing part 310, the diameter of the pressing part 310 is in the range of 5-10 mm, and the membrane electrode is clamped between the pressing part 310 and the bearing table 600 below the pressing part 310 during the thickness measurement of the membrane electrode. The pressing part 310 with the diameter in the range is adopted to contact with the membrane electrode, so that the contact area is larger, the pressure acting on the membrane electrode can be dispersed, and the pressure is smaller, so that the condition that the membrane electrode is damaged in the measuring process is improved.

The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims (10)

1. The thickness gauge for the membrane electrode is characterized by comprising a main body, wherein a knob is rotatably connected to the main body, a measuring rod and a digital display meter are also connected to the main body, and the measuring rod penetrates through the digital display meter; the first end of the knob is connected with the measuring rod, so that the knob drives the measuring rod to move in the rotating process;

the first end and the second end of the knob are respectively positioned at two sides of the rotation axis of the knob; the main body is also connected with a limiting piece, a first end of the limiting piece is connected with the main body, and a second end of the limiting piece can be contacted with a second end of the knob in the process of rotating the knob;

the distance between the second end of the limiting piece and the main body is adjustable, wherein the distance is the distance in the movement direction of the measuring rod.

2. The thickness gauge according to claim 1, wherein the limiting member is a rigid structural member, the limiting member includes a threaded section provided with an external thread, the main body is provided with a threaded hole, and the threaded section is connected to the threaded hole.

3. The thickness gauge according to claim 2, wherein the limiting member is a bolt.

4. The gauge of claim 1, wherein the stop is a telescoping structure, the stop being variable in length in a direction along the movement of the gauge bar to vary a spacing between the second end of the stop and the body.

5. The thickness gauge according to claim 1, wherein a pressing distance of the knob is limited to 20 to 25mm by the limiting member; the distance of upward movement of the measuring staff in the vertical direction is limited to 5-10 mm.

6. The thickness gauge according to claim 1, wherein the first end of the knob is further connected with a weight.

7. The thickness gauge according to claim 1, wherein the lower end of the measuring rod is a cylindrical pressing part, the pressing part is used for contacting with a membrane electrode to be measured, and the diameter of the pressing part is 5-10 mm.

8. The thickness gauge according to claim 7, wherein the main body is further provided with a loading table, the loading table being located below the pressing portion.

9. The thickness gauge according to claim 1, wherein the limiting piece is vertically arranged, and the height of the limiting piece is 15-30 mm.

10. The thickness gauge according to claim 9, wherein the horizontal distance between the rotation center of the knob and the limiting member is 15-30 mm.