Negative pressure drainage liquid meter

Abstract

The utility model provides a negative pressure drainage liquid meter which comprises a metering bottle, spacing assemblies are arranged in the metering bottle and divide the interior of the metering bottle into a plurality of drainage liquid metering areas, and a plurality of graduated scales are arranged on the front face of the metering bottle. And the positions of the plurality of graduated scales correspond to the positions of the plurality of drainage liquid metering areas respectively. According to the drainage liquid metering device, the spacing assemblies are arranged, the spacing assemblies divide the interior of the metering bottle into the multiple drainage liquid metering areas, the graduated scale is further arranged on the metering bottle, and after drainage liquid enters the metering bottle, the amount of the drainage liquid in the metering bottle can be directly read through the graduated scale; therefore, even if the amount of the drainage liquid in the metering bottle is small, a high liquid level can be formed in the drainage liquid metering area, and reading is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring instruments, and particularly relates to a negative pressure drainage fluid measuring instrument. Background Art

[0002] Drainage fluid is the exudate drained from certain parts, such as the maxillofacial region, abdominal cavity, thoracic cavity, and tissue space, by inserting a drainage tube. Most deep tissue surgical operations require indwelling a drainage tube to drain the effusion and exudate after the operation and observe the drainage fluid. Different diseases result in different amounts and colors of drainage fluid.

[0003] The drainage fluid is drained through a drainage tube and a drainage ball. In the prior art, the drainage fluid is stored in the drainage ball during the drainage process, and when measuring, it is necessary to pour the drainage fluid in the drainage device into a measuring cup, which is not conducive to use. Therefore, we make improvements and propose a negative pressure drainage fluid measuring instrument.

[0004] For example: Chinese Utility Model Patent: CN201920020630.3, the disclosed "an improved silver-plated abdominal negative pressure drainage ball", its specification discloses that: generally, the abdominal negative pressure drainage ball has a large volume and inaccurate scale, and cannot accurately measure the amount of abdominal drainage fluid, so that the patient's family members need to equip a measuring cup by themselves, resulting in spillage or secondary pollution during measurement, affecting the patient's recovery; the above patent can prove the defects existing in the prior art. Summary of the Invention

[0005] The purpose of the utility model is to address the problem that when measuring currently, it is necessary to pour the drainage fluid in the drainage device into a measuring cup, which is not conducive to use.

[0006] In order to achieve the above-mentioned invention purpose, the utility model provides a negative pressure drainage fluid measuring instrument to improve the above problems.

[0007] Specifically, this application is as follows:

[0008] It includes a measuring bottle, an interval component is arranged in the measuring bottle, the interval component divides the inside of the measuring bottle into several drainage fluid measuring areas, and several scale marks are arranged on the front of the measuring bottle, and the positions of the several scale marks respectively correspond to the positions of the several drainage fluid measuring areas.

[0009] As a preferred technical solution of this application, one side of the top of the measuring bottle is convexly arranged, and a screw hole is opened at the top of the convex part, and a connecting pipe is threadedly connected to the screw hole;

[0010] The interval component includes a partition board one and multiple partition boards two, the partition board one and the partition boards two are both fixedly installed inside the measuring bottle, and the position of the partition board one is close to the connecting pipe.

[0011] As a preferred technical solution of the present application, through holes are provided in the first partition board, the bottom of the inner cavity of the through hole is not lower than the top of the second partition board, drain ports are provided on both sides of the bottom of the measuring bottle, the positions of the drain ports are far away from the connecting pipe, threads are provided in the drain ports, and sealing caps are threadedly connected to the drain ports. A one-way valve is provided in the connecting pipe, and the one-way valve conducts unidirectionally towards the measuring bottle.

[0012] As a preferred technical solution of the present application, the graduation values of several of the scale rulers are sequentially increased from the first partition board towards the sealing cap.

[0013] As a preferred technical solution of the present application, a negative pressure structure is provided on the measuring bottle. The negative pressure structure includes a piston provided in the measuring bottle and above multiple second partition boards. The outer side of the piston contacts the inner wall of the measuring bottle and the side surface of the first partition board.

[0014] As a preferred technical solution of the present application, a hollow tube is fixedly inserted in the middle of the piston. The top end of the hollow tube passes through the measuring bottle and extends above the measuring bottle, and a handle is fixedly sleeved thereon. One side of the handle is connected to a sealing plug through a connecting rope.

[0015] As a preferred technical solution of the present application, an auxiliary mechanism is further provided on the measuring bottle. The auxiliary mechanism includes a limiting portion and an auxiliary portion provided on the measuring bottle.

[0016] As a preferred technical solution of the present application, the limiting portion includes a first threaded tube fixedly installed on the top of the measuring bottle, a second threaded tube and a third threaded tube fixedly installed on the surface of the measuring bottle away from the scale ruler. The third threaded tube is directly below the second threaded tube.

[0017] As a preferred technical solution of the present application, the auxiliary portion includes a connecting seat located on the top of the measuring bottle. A groove is provided at the bottom of the connecting seat. The top of the inner cavity of the groove is rotatably connected to a rotating shaft through a bearing. The bottom end of the rotating shaft is fixedly connected to the top of the measuring bottle. A connecting shaft is inserted through the middle of the connecting seat. Both ends of the connecting shaft are fixedly connected to a connecting plate.

[0018] As a preferred technical solution of the present application, the two connecting plates are respectively located on both sides of the connecting seat. An L-shaped rod is fixedly connected between the two connecting plates. A first sliding groove is provided on the L-shaped rod. Sliding grooves are provided on the inner walls on both sides of the first sliding groove. Limiting columns are slidably connected in the two sliding grooves. A slider is fixedly connected between the two limiting columns. A screw rod is threadedly connected to the middle of the slider.

[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0020] In the solution of the present application:

[0021] In order to solve the problem that in the prior art, when measuring, it is necessary to introduce the drainage fluid in the drainage device into the measuring cup, which is not conducive to use. In this application, through the provided spacer assembly, the spacer assembly divides the inside of the measuring bottle into several drainage fluid measuring areas, and a scale is also provided on the measuring bottle. After the drainage fluid enters the measuring bottle, the amount of the drainage fluid in the measuring bottle can be directly read through the scale. Since the inside of the measuring bottle is divided into several drainage fluid measuring areas, even if the amount of the drainage fluid in the measuring bottle is small, a relatively high liquid level can be formed in the drainage fluid measuring area, which is convenient for reading. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 FIG. 6 is a schematic structural diagram of a first embodiment of a negative pressure drainage fluid measuring device provided by this application;

[0023] Figure 2 A negative pressure drainage fluid measuring device provided by this application Figure 1 Schematic cross-sectional structure diagram of the measuring bottle therein;

[0024] Figure 3 FIG. 16 is a schematic structural diagram of a second embodiment of a negative pressure drainage fluid measuring device provided by this application;

[0025] Figure 4 A negative pressure drainage fluid measuring device provided by this application Figure 3 Schematic cross-sectional structure diagram of the measuring bottle therein;

[0026] Figure 5 FIG. 26 is a schematic structural diagram of a third embodiment of a negative pressure drainage fluid measuring device provided by this application;

[0027] Figure 6 Schematic structural diagram of an auxiliary part of a negative pressure drainage fluid measuring device provided by this application;

[0028] Figure 7 Schematic cross-sectional structure diagram of a connecting seat of a negative pressure drainage fluid measuring device provided by this application;

[0029] Figure 8 Schematic structural diagram when the screw rod and the threaded pipe III of a negative pressure drainage fluid measuring device provided by this application are connected;

[0030] Figure 9 Schematic structural diagram when the screw rod and the threaded pipe I of a negative pressure drainage fluid measuring device provided by this application are connected.

[0031] Labels in the figures:

[0032] 1. Measuring bottle; 2. Partition plate I; 3. Partition plate II; 4. Through hole; 5. Connecting pipe; 6. Sealing cover; 7. Scale;

[0033] 8. Negative pressure structure; 801. Piston; 802. Hollow tube; 803. Handle; 804. Sealing plug;

[0034] 9. Auxiliary mechanism; 901. First threaded tube; 902. Second threaded tube; 903. Third threaded tube; 904. Connecting seat; 905. Rotating shaft; 906. Connecting shaft; 907. Connecting plate; 908. L-shaped rod; 909. First chute; 910. Second chute; 911. Limit post; 912. Slide block; 913. Screw rod. Detailed implementation manner

[0035] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0036] As described in the background art, in the prior art, during the drainage process, the drainage fluid is stored in the drainage ball, and when measuring, it is necessary to introduce the drainage fluid in the drainage device into the measuring cup, which is not conducive to use.

[0037] To solve this technical problem, the present utility model provides a negative pressure drainage fluid meter, which is applied to improve the convenience of measuring the drainage fluid.

[0038] Specifically, please refer to Figure 1-2 , the negative pressure drainage fluid meter specifically includes:

[0039] Measuring bottle 1, in which a partition component is provided. The partition component divides the inside of the measuring bottle 1 into several drainage fluid measuring areas. A plurality of scale marks 7 are provided on the front of the measuring bottle 1, and the positions of the plurality of scale marks 7 correspond to the positions of the plurality of drainage fluid measuring areas respectively.

[0040] In the negative pressure drainage fluid meter provided by the present utility model, the partition component divides the inside of the measuring bottle 1 into several drainage fluid measuring areas, and a scale mark 7 is also provided on the measuring bottle 1. After the drainage fluid enters the measuring bottle 1, the amount of the drainage fluid in the measuring bottle 1 can be directly read through the scale mark 7. Since the inside of the measuring bottle 1 is divided into several drainage fluid measuring areas, even if the amount of the drainage fluid in the measuring bottle 1 is small, a relatively high liquid level can be formed in the drainage fluid measuring area, which is convenient for reading.

[0041] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings.

[0042] It should be noted that, without conflict, the embodiments in the present utility model and the features and technical solutions in the embodiments can be combined with each other.

[0043] It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0044] Embodiment 1

[0045] Please refer to Figure 1-2 , a negative pressure drainage fluid meter, which includes a measuring bottle 1. A spacer assembly is arranged in the measuring bottle 1. The spacer assembly divides the inside of the measuring bottle 1 into several drainage fluid measuring areas. A plurality of scales 7 are arranged on the front surface of the measuring bottle 1, and the positions of the plurality of scales 7 correspond to the positions of the plurality of drainage fluid measuring areas respectively.

[0046] Through the arranged spacer assembly, the spacer assembly divides the inside of the measuring bottle 1 into several drainage fluid measuring areas, and a scale 7 is also arranged on the measuring bottle 1. After the drainage fluid enters the measuring bottle 1, the amount of the drainage fluid in the measuring bottle 1 can be directly read through the scale 7. Since the inside of the measuring bottle 1 is divided into several drainage fluid measuring areas, even if the amount of the drainage fluid in the measuring bottle 1 is small, a relatively high liquid level can be formed in the drainage fluid measuring area, which is convenient for reading.

[0047] Furthermore, as Figure 1-2 shown, one side of the top of the measuring bottle 1 is convexly arranged, and a screw hole is opened at the top of the convex part. A connecting pipe 5 is threadedly connected to the screw hole. The connecting pipe 5 is used to connect the drainage pipe, and the connecting pipe 5 is threadedly connected to the measuring bottle 1. Such a setting facilitates the replacement of the connecting pipe 5;

[0048] The spacer assembly includes a first partition 2 and a plurality of second partitions 3. The first partition 2 and the plurality of second partitions 3 are both fixedly installed inside the measuring bottle 1, and the position of the first partition 2 is close to the connecting pipe 5. The inside of the measuring bottle 1 can be divided by the first partition 2 and the plurality of second partitions 3 to form several drainage fluid measuring areas.

[0049] Furthermore, as Figure 1-2 shown, a through hole 4 is opened on the first partition 2, and the bottom of the inner cavity of the through hole 4 is not lower than the top of the second partition 3. When the liquid level of the drainage fluid on the left side of the first partition 2 reaches the through hole 4, the excess drainage fluid flows from the through hole 4 into the right side of the first partition 2, that is, the drainage fluid entering the measuring bottle 1 flows into several drainage fluid measuring areas one by one;

[0050] On both sides of the bottom of the measuring flask 1, liquid discharge ports are provided. The positions of the liquid discharge ports are far from the connecting pipe 5. Threads are provided in the liquid discharge ports, and a sealing cap 6 is threadedly connected to the liquid discharge ports. After unscrewing the sealing cap 6, the drainage liquid can be poured out from the liquid discharge ports, and the present application can be reused after cleaning and disinfection. A one-way valve is provided in the connecting pipe 5, and the one-way valve conducts unidirectionally towards the measuring flask 1. The setting of the one-way valve can prevent the drainage liquid in the measuring flask 1 from flowing back.

[0051] Furthermore, the graduation values of several scales 7 are sequentially increased from the first partition 2 towards the sealing cap 6. The specific graduation values and ranges of the scales 7 can be set according to needs. For example, the graduation value of the first scale 7 can be set to 0.1 cm, the second can be set to 0.2 cm, and so on.

[0052] The using process of the negative pressure drainage liquid measuring device provided by the present utility model is as follows:

[0053] Insert the connecting pipe 5 into the drainage pipe, that is, the connection between the connecting pipe 5 and the drainage pipe is realized. The drainage liquid flows from the drainage pipe and the connecting pipe 5 into the measuring flask 1. The drainage liquid first enters the first drainage liquid measuring area. When the liquid level reaches the through hole 4, the drainage liquid flows from the through hole 4 into the second drainage liquid measuring area. When the liquid level in the second drainage liquid measuring area reaches the top of the second partition 3, it flows into the third drainage liquid measuring area, and so on. The amount of the drainage liquid can be read through the scale 7.

[0054] After use, open the sealing cap 6, pour out the drainage liquid, and use high-pressure water flow through the connecting pipe 5 to clean the inside of the measuring flask 1.

[0055] Embodiment 2

[0056] The negative pressure drainage liquid measuring device provided in Embodiment 1 is further optimized. Specifically, as Figure 3-4 shown, a negative pressure structure 8 is provided on the measuring flask 1. The negative pressure structure 8 includes a piston 801 provided inside the measuring flask 1 and above multiple second partitions 3. The outer side of the piston 801 contacts the inner wall of the measuring flask 1 and the side surface of the first partition 2.

[0057] Furthermore, as Figure 3-4 shown, a hollow tube 802 is fixedly inserted in the middle of the piston 801. The top end of the hollow tube 802 passes through the measuring flask 1 and extends above the measuring flask 1 and is fixedly sleeved with a handle 803. One side of the handle 803 is connected with a sealing plug 804 through a connecting rope, and the hollow tube 802 can be sealed through the sealing plug 804.

[0058] After sealing the hollow tube 802 with the sealing plug 804, pull up the handle 803. By means of the handle 803 and the hollow tube 802, the piston 801 is driven to rise, and a negative pressure can be formed in the metering bottle 1, so as to suck the drainage fluid. After opening the sealing plug 804, push down the handle 803. At this time, the hollow tube 802 can keep the pressure balance inside and outside the metering bottle 1.

[0059] The using process of the negative pressure drainage fluid meter provided by the utility model is as follows:

[0060] Insert the connecting tube 5 into the drainage tube, that is, the connection between the connecting tube 5 and the drainage tube is realized. Push down the handle 803 with the sealing plug 804 open, then plug the hollow tube 802 with the sealing plug 804, and pull up the handle 803. The handle 803 drives the piston 801 to rise through the hollow tube 802, so that a negative pressure is formed in the metering bottle 1. The negative pressure is used for drainage through the connecting tube 5 and the drainage tube. The drainage fluid flows into the metering bottle 1 from the drainage tube and the connecting tube 5. The drainage fluid first enters the first drainage fluid metering area. When the liquid level reaches the through hole 4, the drainage fluid flows into the second drainage fluid metering area through the through hole 4. When the liquid level in the second drainage fluid metering area reaches the top of the partition two 3, it flows into the third drainage fluid metering area, and so on. The amount of the drainage fluid can be read through the scale 7. After use, open the sealing cover 6 and pour out the drainage fluid. The inside of the metering bottle 1 can be cleaned by using high-pressure water flow through the connecting tube 5.

[0061] Embodiment 3

[0062] Further optimize the negative pressure drainage fluid meter provided in Embodiment 2. Specifically, as Figure 5-9 shown, an auxiliary mechanism 9 is further provided on the metering bottle 1. The auxiliary mechanism 9 includes a limiting part and an auxiliary part arranged on the metering bottle 1.

[0063] The auxiliary mechanism 9 provided in this embodiment has three usage forms. Figure 5 In the first form, the bracket can be inserted into the edge of the hospital bed. Figure 8 In the second form, it can be fixed after being inserted between the edges of the hospital bed. Figure 9 In the third form, it can be used for the patient to hold the metering bottle 1 by hand and move when walking.

[0064] Furthermore, the limiting part includes a first threaded tube 901 fixedly installed on the top of the metering bottle 1, a second threaded tube 902 fixedly installed on the surface of the metering bottle 1 away from the scale 7, and a third threaded tube 903. The third threaded tube 903 is located directly below the second threaded tube 902. By connecting the auxiliary part to the first threaded tube 901, the second threaded tube 902 and the third threaded tube 903 respectively, the switching of the above three forms can be realized.

[0065] Furthermore, as Figure 6 and Figure 7As shown in the figure, the auxiliary part includes a connecting seat 904 located at the top of the measuring bottle 1. A groove is formed at the bottom of the connecting seat 904. The top of the inner cavity of the groove is rotatably connected to a rotating shaft 905 through a bearing. The bottom end of the rotating shaft 905 is fixedly connected to the top of the measuring bottle 1. A connecting shaft 906 is inserted through the middle of the connecting seat 904. Both ends of the connecting shaft 906 are fixedly connected with connecting plates 907. The arrangement of the rotating shaft 905 enables the connecting seat 904 to rotate on the top of the measuring bottle 1.

[0066] Further, as Figure 6 and Figure 7 shown in the figure, the two connecting plates 907 are respectively located on both sides of the connecting seat 904. An L-shaped rod 908 is fixedly connected between the two connecting plates 907. A first chute 909 is formed on the L-shaped rod 908. Second chutes 910 are formed on the inner walls on both sides of the first chute 909. A limiting post 911 is slidably connected in each of the two second chutes 910. A slider 912 is fixedly connected between the two limiting posts 911. The slider 912 can be limited by the mutual cooperation of the second chute 910 and the limiting post 911. A screw rod 913 is threadedly connected to the middle of the slider 912. The slider 912 can support the screw rod 913.

[0067] The using process of the negative pressure drainage fluid measuring device provided by the present utility model is as follows:

[0068] Insert the connecting pipe 5 into the drainage pipe, that is, the connection between the connecting pipe 5 and the drainage pipe is realized. While the sealing plug 804 is open, push down the handle 803, and then block the hollow pipe 802 with the sealing plug 804. Pull up the handle 803. The handle 803 drives the piston 801 to rise through the hollow pipe 802, so that a negative pressure is formed in the measuring bottle 1. The negative pressure is used for drainage through the connecting pipe 5 and the drainage pipe. The drainage fluid flows into the measuring bottle 1 from the drainage pipe and the connecting pipe 5. The drainage fluid first enters the first drainage fluid measuring area. When the liquid level reaches the through hole 4, the drainage fluid flows into the second drainage fluid measuring area through the through hole 4. When the liquid level in the second drainage fluid measuring area reaches the top of the partition plate two 3, it flows into the third drainage fluid measuring area, and so on. The amount of the drainage fluid can be read through the scale 7. After use, open the sealing cover 6 and pour out the drainage fluid. The measuring bottle 1 can be cleaned by using high-pressure water flow through the connecting pipe 5;

[0069] When directly inserting it to the edge of the hospital bed, screw the screw rod 913 into the second threaded pipe 902. When in use, directly insert the L-shaped rod 908 to the edge of the hospital bed;

[0070] When it is fixed and used between the edges of the hospital bed, first loosen the screw rod 913, then rotate the slider 912 so that the screw rod 913 stands upright. After inserting the screw rod 913 and the L-shaped rod 908 directly into the edge of the hospital bed, rotate the slider 912 until it is perpendicular to the measuring bottle 1, and then connect the screw rod 913 with the third threaded pipe 903;

[0071] When the patient holds the measuring bottle 1 and moves it for use, loosen the screw rod 913, then rotate the L-shaped rod 908 upward, and then rotate the L-shaped rod 908 horizontally so that the screw rod 913 is aligned with the first threaded pipe 901, and then connect the screw rod 913 with the first threaded pipe 901;

[0072] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0073] Obviously, the above-described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. The accompanying drawings show the preferred embodiments of the present utility model, but do not limit the patent scope of the present utility model. The present utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present utility model more thorough and comprehensive. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing specific embodiments, or perform equivalent replacements for some of the technical features. Any equivalent structure directly or indirectly using the content of the specification and drawings of the present utility model in other related technical fields is equally within the scope of the patent protection of the present utility model.

Claims

1. A negative pressure drainage fluid meter, characterized in that: The measuring bottle (1) comprises a measuring bottle (1), wherein a spacer assembly is arranged in the measuring bottle (1), wherein the spacer assembly divides the interior of the measuring bottle (1) into a plurality of drainage liquid measuring areas, and a plurality of scales (7) are arranged on the front of the measuring bottle (1), wherein the positions of the plurality of scales (7) respectively correspond to the positions of the plurality of drainage liquid measuring areas.

2. A negative pressure drainage fluid meter according to claim 1, characterized in that: One side of the top of the measuring bottle (1) is provided in a raised shape, and a screw hole is provided at the top of the raised shape, and a connecting pipe (5) is threadedly connected to the screw hole; The partition assembly comprises a partition one (2) and a plurality of partition twos (3), wherein the partition one (2) and the partition two (3) are both fixedly installed inside the measuring bottle (1), and the partition one (2) is located close to the connecting pipe (5).

3. A negative pressure drainage fluid meter according to claim 2, characterized in that: The partition plate 1 (2) is provided with a through hole (4), the bottom of the inner cavity of the through hole (4) is not lower than the top of the partition plate 2 (3), the bottom of the measuring bottle (1) is provided with drainage ports on both sides, the location of the drainage ports is far away from the connecting pipe (5), the drainage ports are provided with threads, a sealing cover (6) is threadedly connected to the drainage ports, and a one-way valve is provided in the connecting pipe (5), and the one-way valve is unidirectionally conducted in the direction of the measuring bottle (1).

4. A negative pressure drainage fluid meter according to claim 3, characterized in that: The graduation values ​​of the plurality of scales (7) are arranged to increase in sequence from the partition plate 1 (2) toward the sealing cover (6).

5. A negative pressure drainage fluid meter according to claim 4, characterized in that: The measuring bottle (1) is provided with a negative pressure structure (8), and the negative pressure structure (8) comprises a piston (801) arranged in the measuring bottle (1) and located above the plurality of partitions (3), and the outer side of the piston (801) is in contact with the inner wall of the measuring bottle (1) and the side surface of the partition (2).

6. A negative pressure drainage fluid meter according to claim 5, characterized in that: A hollow tube (802) is fixedly inserted in the middle of the piston (801), the top end of the hollow tube (802) passes through the measuring bottle (1) and extends to the top of the measuring bottle (1) and is fixedly sleeved with a handle (803), and one side of the handle (803) is connected to a sealing plug (804) via a connecting rope.

7. A negative pressure drainage fluid meter according to claim 6, characterized in that: The measuring bottle (1) is also provided with an auxiliary mechanism (9), and the auxiliary mechanism (9) comprises a limiting part and an auxiliary part provided on the measuring bottle (1).

8. A negative pressure drainage fluid meter according to claim 7, characterized in that: The limiting portion comprises a threaded tube 1 (901) fixedly mounted on the top of the measuring bottle (1), a threaded tube 2 (902) fixedly mounted on a side of the measuring bottle (1) away from the scale (7), and a threaded tube 3 (903), wherein the threaded tube 3 (903) is located directly below the threaded tube 2 (902).

9. A negative pressure drainage fluid meter according to claim 8, characterized in that: The auxiliary part comprises a connecting seat (904) located at the top of the measuring bottle (1); a groove is provided at the bottom of the connecting seat (904); a rotating shaft (905) is rotatably connected to the top of the inner cavity of the groove via a bearing; the bottom end of the rotating shaft (905) is fixedly connected to the top of the measuring bottle (1); a connecting shaft (906) is inserted and connected in the middle of the connecting seat (904); and connecting plates (907) are fixedly connected to both ends of the connecting shaft (906).

10. A negative pressure drainage fluid meter according to claim 9, characterized in that: The two connecting plates (907) are respectively located on both sides of the connecting seat (904), an L-shaped rod (908) is fixedly connected between the two connecting plates (907), a slide groove (909) is provided on the L-shaped rod (908), and slide grooves (910) are provided on the inner walls on both sides of the slide groove (909), and the two slide grooves (910) are slidably connected with limit columns (911), a slider (912) is fixedly connected between the two limit columns (911), and a screw rod (913) is threadedly connected to the middle part of the slider (912).

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