CN220235720U - An automatic weighing mechanism for measuring the water consumption of experimental rats - Google Patents
An automatic weighing mechanism for measuring the water consumption of experimental rats Download PDFInfo
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- CN220235720U CN220235720U CN202321625045.9U CN202321625045U CN220235720U CN 220235720 U CN220235720 U CN 220235720U CN 202321625045 U CN202321625045 U CN 202321625045U CN 220235720 U CN220235720 U CN 220235720U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 238000005303 weighing Methods 0.000 title claims abstract description 17
- 241000700159 Rattus Species 0.000 title abstract description 19
- 230000035622 drinking Effects 0.000 claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 239000011148 porous material Substances 0.000 claims abstract description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 38
- 229910052742 iron Inorganic materials 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 9
- 241000699666 Mus <mouse, genus> Species 0.000 claims description 8
- 241000699670 Mus sp. Species 0.000 claims description 7
- 239000003651 drinking water Substances 0.000 abstract description 19
- 235000020188 drinking water Nutrition 0.000 abstract description 19
- 238000005259 measurement Methods 0.000 abstract description 9
- 238000010171 animal model Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000002474 experimental method Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
本实用新型公开了一种测量实验鼠饮水量的自动称重机构,包括载板以及开设在载板上的通槽;通槽间隙配合饮水瓶,饮水瓶外壁上固定套接有圆环座,载板上设置有多个压力传感器,圆环座放置于压力传感器顶部;饮水瓶的底部固定连通有第一管体,第一管体的底端安装有流量计,流量计远离第一管体的一端口安装有第二管体,第二管体的末端安装有可自开闭的吸嘴;吸嘴包括外壳以及设置在外壳内部可沿外壳长度方向进行移动的封盘,外壳一端与第二管体一端固定套接,外壳的另一端为半圆球型结构,外壳的半圆球位置开设有若干个细孔。本实用新型的有益之处在于准确把握实验动物饮水开始和结束时间,精确饮水量;同时无需人工进行测量,整体使用方便。
The utility model discloses an automatic weighing mechanism for measuring the drinking water amount of experimental rats, which includes a carrier plate and a through slot provided on the carrier plate; the through slot is fitted with a drinking bottle, and an annular seat is fixedly connected to the outer wall of the drinking bottle. A plurality of pressure sensors are provided on the carrier board, and the ring seat is placed on top of the pressure sensor; the bottom of the drinking bottle is fixedly connected to a first pipe body, and a flow meter is installed at the bottom of the first pipe body, and the flow meter is away from the first pipe body A second pipe body is installed at one port of the second pipe body, and a self-opening and closing suction nozzle is installed at the end of the second pipe body; the suction nozzle includes a shell and a sealing plate that is disposed inside the shell and can move along the length of the shell. One end of the shell is connected to the third pipe body. One end of the two-tube body is fixedly connected to the socket, and the other end of the shell has a hemispherical spherical structure. Several pores are provided in the semicircular spherical position of the shell. The utility model is beneficial in that it accurately grasps the start and end time of experimental animals drinking water and the precise amount of water they drink; at the same time, no manual measurement is required, and the overall use is convenient.
Description
技术领域Technical field
本实用新型涉及饮水量计量领域,尤其是一种测量实验鼠饮水量的自动称重机构。The utility model relates to the field of drinking water measurement, in particular to an automatic weighing mechanism for measuring the drinking water volume of experimental rats.
背景技术Background technique
目前实验鼠的饮水试验操作流程:人为取出饮水瓶让目标实验鼠禁水24h,24h后再将饮水瓶进行称重后放入鼠笼,实验鼠喝第一口水开始进行4min倒计时,倒计时结束后取出饮水瓶再次进行称重,饮水试验前后饮水瓶重量差即为实验鼠饮水量。The current drinking water test operation process for experimental rats: manually remove the drinking water bottle and let the target experimental rat deprive it of water for 24 hours. After 24 hours, the drinking bottle is weighed and placed in the rat cage. After the experimental rat drinks the first water, a 4-minute countdown begins and the countdown ends. Then take out the drinking bottle and weigh it again. The difference in the weight of the drinking bottle before and after the drinking test is the amount of water the experimental rat drinks.
如公开号为CN211746166U的小鼠实验用饮水瓶,公开了一种小鼠实验用饮水瓶,包括瓶身以及与瓶身连接并连通的量筒;所述瓶身包括平直底部和弓形顶部,所述量筒连接在所述弓形顶部;其中,所述量筒与所述平直底部所在的平面形成10-60°的夹角。使用本实用新型的小鼠实验用饮水瓶时,先将饮水瓶装满水后,放置到实验用小鼠笼放置水瓶的位置,使瓶身倾斜且量筒处于竖直方向,量筒内的液面为水平,以便准确读数。在读取小鼠饮水量时,无需将饮水瓶从鼠笼上拔取出来,故不会产生晃动漏液的问题,从而提高小鼠饮水量测量的准确性,且可直观地从量筒上读出体积数,省时省力;For example, the publication number is CN211746166U, which discloses a drinking bottle for mouse experiments, which includes a bottle body and a measuring cylinder connected and communicated with the bottle body; the bottle body includes a straight bottom and an arcuate top, so The measuring cylinder is connected to the arcuate top; wherein the measuring cylinder forms an included angle of 10-60° with the plane where the flat bottom is located. When using the mouse experimental drinking water bottle of the present invention, first fill the drinking water bottle with water, and then place it in the position where the water bottle is placed in the experimental mouse cage, so that the bottle body is tilted and the measuring cylinder is in the vertical direction. The liquid level in the measuring cylinder is level for accurate readings. When reading the amount of water consumed by mice, there is no need to pull out the drinking bottle from the cage, so there will be no problem of shaking and leakage, thereby improving the accuracy of measuring the amount of water consumed by mice, and it can be read intuitively from the measuring cylinder. Volume number, saving time and effort;
上述专利虽可实现饮水量的计量,无需称重,但其存在如下缺陷,在进行计量过程中,进行计时过程中,仍然需要人工进行计时,无法准确把握实验动物饮水开始和结束时间,不易精确饮水量,存在误差。Although the above-mentioned patent can realize the measurement of drinking water without weighing, it has the following defects. During the measurement process and timing process, manual timing is still required, and it is impossible to accurately grasp the start and end time of experimental animals drinking water, which is not easy to be accurate. There is an error in the amount of water you drink.
因此,针对上述问题提出一种测量实验鼠饮水量的自动称重机构。Therefore, an automatic weighing mechanism for measuring the water consumption of experimental rats is proposed to solve the above problems.
实用新型内容Utility model content
本实用新型提供了一种测量实验鼠饮水量的自动称重机构,用于解决现有技术中饮水不易计时的问题。The utility model provides an automatic weighing mechanism for measuring the drinking water amount of experimental rats, which is used to solve the problem of difficulty in timing drinking water in the prior art.
一种测量实验鼠饮水量的自动称重机构,包括载板以及开设在载板上的通槽;所述通槽间隙配合连接有饮水瓶,且饮水瓶的外壁上固定套接有圆环座,所述载板上设置有多个压力传感器,且圆环座放置于压力传感器顶部;所述饮水瓶的底部固定连通有第一管体,所述第一管体的底端安装有流量计,且流量计远离第一管体的一端口安装有第二管体,所述第二管体的末端安装有可自开闭的吸嘴;所述吸嘴包括外壳以及设置在外壳内部可沿外壳长度方向进行移动的封盘,所述外壳的一端与第二管体远离流量计的一端固定套接,所述外壳的另一端为半圆球型结构,且外壳的半圆球位置开设有若干个细孔。An automatic weighing mechanism for measuring the drinking water amount of experimental rats, including a carrier plate and a through slot provided on the carrier plate; a drinking bottle is connected to the through slot with a clearance, and an annular seat is fixedly connected to the outer wall of the drinking bottle , multiple pressure sensors are provided on the carrier plate, and the annular seat is placed on the top of the pressure sensor; the bottom of the drinking water bottle is fixedly connected with a first pipe body, and a flow meter is installed at the bottom end of the first pipe body , and a second pipe body is installed at a port of the flow meter away from the first pipe body, and a self-opening and closing suction nozzle is installed at the end of the second pipe body; the suction nozzle includes a shell and a suction nozzle that is arranged inside the shell and can be opened and closed along the The sealing plate moves in the length direction of the casing. One end of the casing is fixedly connected to the end of the second tube away from the flow meter. The other end of the casing is a semi-spherical structure, and there are several semi-spherical positions of the casing. fine pores.
进一步地,所述饮水瓶的顶部固定连通安装有加液口,且加液口的顶端螺纹安装有封口盖。Further, the top of the drinking bottle is fixedly and connected with a liquid filling port, and the top thread of the liquid filling port is threaded with a sealing cap.
进一步地,所述载板的顶部设置有控制盒以及显示屏,所述控制盒内设置有单片机控制器、计时器以及电源。Further, a control box and a display screen are provided on the top of the carrier board, and a microcontroller controller, a timer and a power supply are provided in the control box.
进一步地,所述控制盒内的单片机控制器电连接有开关。Further, the single-chip microcomputer controller in the control box is electrically connected to a switch.
进一步地,所述吸嘴还包括固定安装至外壳内的导孔板以及安装座,所述导孔板上开设有导孔,所述导孔间隙配合连接有铁杆,所述安装座固定安装有电磁铁,且电磁铁位于铁杆的一端处,所述铁杆的另一端与封盘固定安装,所述铁杆上套设有弹簧,所述弹簧一端与铁杆的杆面固定连接,所述弹簧的另一端与导孔板的板面固定连接。Further, the suction nozzle further includes a guide hole plate and a mounting base fixedly installed in the housing. The guide hole plate is provided with a guide hole. An iron rod is connected to the guide hole with a clearance fit. The mounting base is fixedly installed with a guide hole. The electromagnet is located at one end of the iron rod, and the other end of the iron rod is fixedly installed with the sealing plate. A spring is set on the iron rod, and one end of the spring is fixedly connected to the face of the iron rod. The other end of the spring One end is fixedly connected to the surface of the guide hole plate.
进一步地,所述封盘靠近细孔的面设置有橡胶垫片。Furthermore, a rubber gasket is provided on the surface of the sealing plate close to the pores.
本实用新型的有益之处在于:本实用新型提出的一种测量实验鼠饮水量的自动称重机构可通过自开闭的吸嘴,计时结束后,可快速结束实验鼠的吸水,计时开始通过流量计的是否具有流量情况进行自动开始计时,无需人工计时,提高了实验精度,准确把握实验动物饮水开始和结束时间,精确饮水量,减少误差;同时其测量通过流量计和压力传感器进行实现,无需人工进行测量,整体使用方便。The utility model is beneficial in that: the automatic weighing mechanism proposed by the utility model for measuring the water consumption of experimental rats can pass through the self-opening and closing suction nozzle. After the timer ends, the water absorption of the experimental rats can be quickly ended, and the timer starts to pass. The flow meter automatically starts timing whether there is a flow rate, without manual timing, which improves the accuracy of the experiment, accurately grasps the start and end time of experimental animals drinking water, accurately drinks water, and reduces errors; at the same time, its measurement is achieved through a flow meter and a pressure sensor. No manual measurement is required, making it easy to use.
附图说明Description of drawings
为了更清楚地说明本实用新型实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本实用新型的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动性的前提下,还可以根据这些附图获得其它的附图。In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description These are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting any creative effort.
图1为本实用新型一种实施例的整体结构示意图;Figure 1 is a schematic diagram of the overall structure of an embodiment of the present utility model;
图2为本实用新型一种实施例的饮水瓶与载板安装截面结构示意图;Figure 2 is a schematic cross-sectional structural diagram of the installation of a drinking bottle and a carrier plate according to an embodiment of the present invention;
图3为本实用新型一种实施例的吸嘴截面结构示意图;Figure 3 is a schematic cross-sectional structural diagram of a suction nozzle according to an embodiment of the present invention;
图4为本实用新型一种实施例的导孔板与外壳的结构示意图。Figure 4 is a schematic structural diagram of a guide hole plate and a housing according to an embodiment of the present invention.
图中:1、饮水瓶;2、载板;3、圆环座;4、封口盖;5、显示屏;6、开关;7、控制盒;8、第一管体;9、流量计;10、第二管体;11、吸嘴;1101、外壳;1102、电磁铁;1103、安装座;1104、导孔板;1105、铁杆;1106、弹簧;1107、封盘;1108、细孔;12、通槽;13、压力传感器。In the picture: 1. Drinking bottle; 2. Carrier plate; 3. Ring seat; 4. Sealing cover; 5. Display screen; 6. Switch; 7. Control box; 8. First tube body; 9. Flow meter; 10. Second tube body; 11. Suction nozzle; 1101. Shell; 1102. Electromagnet; 1103. Mounting seat; 1104. Guide hole plate; 1105. Iron rod; 1106. Spring; 1107. Sealing plate; 1108. Fine hole; 12. Through slot; 13. Pressure sensor.
具体实施方式Detailed ways
为了使本技术领域的人员更好地理解本实用新型方案,下面将结合本实用新型实施例中的附图,对本实用新型实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本实用新型一部分的实施例,而不是全部的实施例。基于本实用新型中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都应当属于本实用新型保护的范围。In order to enable those in the technical field to better understand the solution of the present utility model, the technical solution in the embodiment of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the present utility model. Obviously, the described The embodiments are only part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts should fall within the scope of protection of the present utility model.
需要说明的是,在不冲突的情况下,本实用新型中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本实用新型。It should be noted that, as long as there is no conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
请参阅图1-4所示,一种测量实验鼠饮水量的自动称重机构,包括载板2以及开设在载板2上的通槽12;Please refer to Figure 1-4, an automatic weighing mechanism for measuring the water consumption of experimental rats includes a carrier plate 2 and a through slot 12 opened on the carrier plate 2;
所述通槽12间隙配合连接有饮水瓶1,且饮水瓶1的外壁上固定套接有圆环座3,所述载板2上设置有多个压力传感器13,且圆环座3放置于压力传感器13顶部;A drinking bottle 1 is connected with a clearance fit in the slot 12, and an annular seat 3 is fixedly connected to the outer wall of the drinking bottle 1. A plurality of pressure sensors 13 are provided on the carrier plate 2, and the annular seat 3 is placed on top of pressure sensor 13;
所述饮水瓶1的底部固定连通有第一管体8,所述第一管体8的底端安装有流量计9,且流量计9远离第一管体8的一端口安装有第二管体10,所述第二管体10的末端安装有可自开闭的吸嘴11;The bottom of the drinking bottle 1 is fixedly connected with a first tube 8. A flow meter 9 is installed at the bottom end of the first tube 8, and a second tube is installed at a port of the flow meter 9 away from the first tube 8. Body 10, the end of the second pipe body 10 is equipped with a self-opening and closing suction nozzle 11;
所述吸嘴11包括外壳1101以及设置在外壳1101内部可沿外壳1101长度方向进行移动的封盘1107,所述外壳1101的一端与第二管体10远离流量计9的一端固定套接,所述外壳1101的另一端为半圆球型结构,且外壳1101的半圆球位置开设有若干个细孔1108;The suction nozzle 11 includes a shell 1101 and a sealing disk 1107 which is disposed inside the shell 1101 and can move along the length direction of the shell 1101. One end of the shell 1101 is fixedly connected to the end of the second tube body 10 away from the flow meter 9, so The other end of the housing 1101 has a hemispherical structure, and several pores 1108 are provided at the semispherical positions of the housing 1101;
在吸嘴11关闭时,所述封盘1107覆盖在细孔1108上,所在吸嘴11打开时,所述封盘1107与细孔1108分离。When the suction nozzle 11 is closed, the sealing disk 1107 covers the pores 1108, and when the suction nozzle 11 is opened, the sealing disk 1107 is separated from the pores 1108.
在具体实施时,所述饮水瓶1的顶部固定连通安装有加液口,且加液口的顶端螺纹安装有封口盖4,通过加液口,用于饮水瓶1内的加液。In specific implementation, the top of the drinking water bottle 1 is fixedly and connected with a liquid filling port, and the top thread of the liquid filling port is threaded with a sealing cap 4 for adding liquid into the drinking water bottle 1 through the liquid filling port.
进一步地,所述载板2的顶部设置有控制盒7以及显示屏5,所述控制盒7内设置有单片机控制器、计时器以及电源;所述控制盒7内的单片机控制器电连接有开关6;所述单片机控制器与显示屏5、流量计9、电磁铁1102、计时器以及开关6电连接,起到整体控制的作用,电源的充电接口从控制盒7内伸出,用于充电;Further, the top of the carrier board 2 is provided with a control box 7 and a display screen 5. The control box 7 is provided with a single-chip microcomputer controller, a timer and a power supply; the single-chip microcomputer controller in the control box 7 is electrically connected to Switch 6; the single-chip controller is electrically connected to the display screen 5, flow meter 9, electromagnet 1102, timer and switch 6 to play the role of overall control. The charging interface of the power supply extends from the control box 7 for Charge;
其中开关6采用按键开关,用于为开始试验打开吸嘴11上细孔1108提供控制。The switch 6 adopts a key switch to provide control for opening the fine hole 1108 on the suction nozzle 11 to start the test.
作为具体的技术方案,所述吸嘴11还包括固定安装至外壳1101内的导孔板1104以及安装座1103,所述导孔板1104上开设有导孔,所述导孔间隙配合连接有铁杆1105,所述安装座1103固定安装有电磁铁1102,且电磁铁1102位于铁杆1105的一端处,所述铁杆1105的另一端与封盘1107固定安装,所述铁杆1105上套设有弹簧1106,所述弹簧1106一端与铁杆1105的杆面固定连接,所述弹簧1106的另一端与导孔板1104的板面固定连接;所述封盘1107靠近细孔1108的面设置有橡胶垫片,通过电磁铁1102的通断电,实现细孔1108开闭的控制。As a specific technical solution, the nozzle 11 also includes a guide hole plate 1104 and a mounting seat 1103 fixedly installed in the housing 1101. The guide hole plate 1104 is provided with a guide hole, and an iron rod is connected to the guide hole with a clearance fit. 1105. The electromagnet 1102 is fixedly installed on the mounting base 1103, and the electromagnet 1102 is located at one end of the iron rod 1105. The other end of the iron rod 1105 is fixedly installed with the sealing plate 1107. The iron rod 1105 is provided with a spring 1106. One end of the spring 1106 is fixedly connected to the club surface of the iron rod 1105, and the other end of the spring 1106 is fixedly connected to the surface of the guide hole plate 1104; a rubber gasket is provided on the surface of the sealing plate 1107 close to the pore 1108, and passes through The electromagnet 1102 is turned on and off to control the opening and closing of the pores 1108.
使用方法:本实用新型提出的一种测量实验鼠饮水量的自动称重机构在进行实验鼠饮水试验时,通过将本机构放置在顶部具有孔洞的鼠笼上(需要说明的是,此孔洞在不进行实验时,进行关闭,可设置抽拉式的网门、或盖子盖住),孔洞小于载板2的长、宽,可使饮水瓶1穿过,从而载板2放置承载在鼠笼的顶部;Usage method: The utility model proposes an automatic weighing mechanism for measuring the drinking water of experimental rats. When conducting the drinking test of experimental rats, the mechanism is placed on a rat cage with a hole on the top (it should be noted that this hole is in When the experiment is not being carried out, it must be closed, and a pull-out mesh door or a cover can be installed). The hole is smaller than the length and width of the carrier plate 2, allowing the drinking bottle 1 to pass through, so that the carrier plate 2 is placed in the mouse cage. the top of;
接着通过按压开关6,单片机控制器接收到信号,使电磁铁1102通电,产生磁力,对铁杆1105进行磁吸,同时压缩弹簧1106,使得铁杆1105带动封盘1107一起移动,与细孔1108分离,由于孔口较小,水珠因张力因素,可以封住这些细小孔隙,在实验鼠不吸水的情况下,不会外漏,实验鼠进行吸水时,水流通过流量计9,进行计量,同时传输信号到单片机控制器中,启动计时器进行计时,计时到4min,通过单片机控制器,使电磁铁1102断电,使得铁杆1105失去磁吸,通过弹簧1106的弹力驱动,使封盘1107封闭细孔1108,实验鼠无法进行吸水,完成实验;Then by pressing the switch 6, the microcontroller controller receives a signal, energizes the electromagnet 1102, generates magnetic force, magnetically attracts the iron rod 1105, and compresses the spring 1106 at the same time, causing the iron rod 1105 to drive the sealing plate 1107 to move together and separate from the pore 1108. Because the orifices are small, water droplets can seal these small pores due to tension factors. When the experimental mouse does not absorb water, there will be no leakage. When the experimental mouse absorbs water, the water flow passes through the flow meter 9 for measurement and transmission at the same time. The signal is sent to the microcontroller controller, and the timer is started for timing. When the timer reaches 4 minutes, the electromagnet 1102 is powered off through the microcontroller controller, causing the iron rod 1105 to lose its magnetic attraction. It is driven by the elastic force of the spring 1106 to close the pores of the sealing plate 1107. 1108, the experimental mouse cannot absorb water, and the experiment is completed;
通过取出整个机构,流量计9上显示的数值,结合压力传感器13实验前后,传感的压力数值,传感的数据传输到单片机控制器进行处理,通过显示器进行显示,通过实验前后压力数值的差值,可判断饮水量。By taking out the entire mechanism, the value displayed on the flow meter 9 is combined with the pressure value sensed by the pressure sensor 13 before and after the experiment. The sensed data is transmitted to the microcontroller controller for processing, and is displayed through the display. Through the difference of the pressure value before and after the experiment, value to determine the amount of water consumed.
本实用新型提出的一种测量实验鼠饮水量的自动称重机构可通过自开闭的吸嘴11,计时结束后,可快速结束实验鼠的吸水,计时开始通过流量计9的是否具有流量情况进行自动开始计时,无需人工计时,提高了实验精度,准确把握实验动物饮水开始和结束时间,精确饮水量,减少误差;同时其测量通过流量计9和压力传感器13进行实现,无需人工进行测量,整体使用方便。The utility model proposes an automatic weighing mechanism for measuring the amount of water consumed by experimental rats. It can pass through the self-opening and closing suction nozzle 11. After the timer ends, the water absorption of the experimental rats can be quickly ended. The timer starts to check whether there is a flow rate of the flowmeter 9. Automatically start timing without manual timing, which improves the accuracy of the experiment, accurately grasps the start and end time of experimental animals drinking water, accurately drinks water, and reduces errors; at the same time, the measurement is realized through the flow meter 9 and the pressure sensor 13, without manual measurement. Overall easy to use.
以上所述仅为本实用新型的优选实施例而已,并不用于限制本实用新型,对于本领域的技术人员来说,本实用新型可以有各种更改和变化。凡在本实用新型的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本实用新型的保护范围之内。The above descriptions are only preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and changes. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.
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