Liquid level detection assembly and buffer tank fixing structure

Abstract

Provided in the present application are a liquid level detection assembly and a buffer tank fixing structure. The liquid level detection assembly comprises: a mounting block, the mounting block being provided with a through hole; a liquid level sensor, the liquid level sensor being connected to the mounting block; a first connector, the first connector running through the through hole and being configured to connect the liquid level detection assembly to a support of the buffer tank fixing structure; and an elastic member, part of which is accommodated in the through hole and is sleeved on the first connector, wherein a step face is provided in the through hole, one end of the elastic member abuts against the step face, and the other end of the elastic member abuts against the support, to provide an acting force for the liquid level sensor in a direction away from the support. The present application solves the problem in the prior art of inaccurate liquid level detection of a buffer tank.

Description

Liquid level detection component and buffer tank fixing structure

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the China Patent Office on December 29, 2023, with application number 202323669174.0 and application name “Liquid level detection component and buffer barrel fixing structure”, all contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the technical field of medical devices, and in particular to a liquid level detection component and a buffer barrel fixing structure. Background Art

[0004] In the field of in vitro diagnostic analysis equipment, a liquid level sensor is often mounted on a bracket on one side, with the other side attached to a buffer tank. This allows the sensor to detect the liquid level within the buffer tank. The level of contact with the buffer tank surface affects the sensor's detection results; better contact results in more accurate data. However, in existing buffer tank liquid level detection structures, the sensor is completely fixed to the bracket. The degree of contact between the sensor and the buffer tank wall depends on many factors, including bracket manufacturing errors, sensor installation errors, and the shape of the buffer tank wall, significantly affecting the accuracy of liquid level detection.

[0005] Application Contents

[0006] The main purpose of the present application is to provide a liquid level detection component and a buffer bucket fixing structure to solve the problem of inaccurate buffer bucket liquid level detection in the related art.

[0007] In order to achieve the above-mentioned purpose, according to one aspect of the present application, a liquid level detection assembly is provided, including: a mounting block, the mounting block is provided with a through hole; a liquid level sensor, the liquid level sensor is connected to the mounting block; a first connecting member, the first connecting member is passed through the through hole, and is used to connect the liquid level detection assembly to the bracket of the buffer barrel fixing structure; an elastic member, a part of the elastic member is accommodated in the through hole and is sleeved on the first connecting member, and the through hole has a step surface, one end of the elastic member abuts the step surface, and the other end abuts the bracket, providing a force for the liquid level sensor to move away from the bracket.

[0008] In one embodiment, the liquid level sensor is provided with a mounting ear, and the mounting block is correspondingly provided with a mounting hole. The liquid level detection assembly further includes a second connecting member, which passes through the connecting ear and the connecting hole in sequence to connect the liquid level sensor and the mounting block.

[0009] In one embodiment, there are at least two through holes, and the at least two through holes are respectively located at opposite corners of the mounting block.

[0010] In one embodiment, the first connecting member and / or the second connecting member is a screw; and / or the elastic member is a spring.

[0011] In one embodiment, the mounting block is made of plastic.

[0012] According to another aspect of the present application, a buffer barrel fixing structure is provided, including a bracket, a base and the above-mentioned liquid level detection component, the bracket includes a first bracket and a second bracket, the first bracket and the second bracket are respectively upright on both sides of the base, the buffer barrel is placed on the base and is located between the first bracket and the second bracket, and the liquid level detection component is arranged on the first bracket.

[0013] In one embodiment, the first bracket has a mounting groove with an opening facing the buffer barrel, at least a portion of the liquid level detection assembly is accommodated in the mounting groove, and one side of the buffer barrel is in contact with the liquid level sensor.

[0014] In one embodiment, there are multiple mounting slots and multiple liquid level detection assemblies, the multiple mounting slots are spaced apart along the height direction of the first bracket, and the multiple liquid level detection assemblies are arranged in a one-to-one correspondence with the multiple mounting slots.

[0015] In one embodiment, the first bracket is provided with an avoidance gap communicating with the mounting groove, for avoiding at least a portion of the liquid level sensor.

[0016] In one embodiment, the buffer bucket fixing structure further includes a limiting plate, which is located above the buffer bucket and has two ends connected to the first bracket and the second bracket respectively.

[0017] Applying the technical solution of the present application, the liquid level detection assembly includes a mounting block, a liquid level sensor, a first connecting member and an elastic member. The mounting block is provided with a through hole, the liquid level sensor is connected to the mounting block, and the first connecting member is passed through the through hole for connecting the liquid level detection assembly to the bracket of the buffer bucket fixing structure. A portion of the elastic member is accommodated in the through hole and is sleeved on the first connecting member. The through hole has a step surface, one end of the elastic member abuts the step surface, and the other end abuts the bracket, providing a force for the liquid level sensor to move away from the bracket. In this way, the first connecting member passes through the through hole and is connected to the bracket, and the other part of the elastic member extends out of the through hole and abuts the bracket, so that the elastic member has a certain deformation length and deformation space, thereby pushing the mounting block and the liquid level sensor to keep as close as possible to the buffer bucket. While ensuring a close fit, the length of the liquid level sensor extending out of the bracket can be flexibly adjusted, thereby being suitable for buffer buckets of different sizes, and avoiding the influence of bracket processing errors, liquid level sensor installation errors, etc., thereby ensuring the detection accuracy of the liquid level sensor, and solving the problem of inaccurate buffer bucket liquid level detection in related technologies. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings that constitute part of this application are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation on this application. In the drawings:

[0019] FIG1 is a schematic structural diagram showing an angle of a liquid level detection assembly in a specific embodiment of the present application;

[0020] FIG2 shows a schematic structural diagram of a liquid level detection assembly in a specific embodiment of the present application from another angle;

[0021] FIG3 shows a schematic structural diagram of a liquid level detection assembly in a specific embodiment of the present application from another angle;

[0022] FIG4 shows a schematic structural diagram of a first bracket in a specific embodiment of the present application;

[0023] FIG5 shows a partial enlarged view of point A in FIG4 ;

[0024] FIG6 is a schematic structural diagram showing an angle of a buffer bucket fixing structure in a specific embodiment of the present application;

[0025] FIG7 is a schematic structural diagram showing another angle of the buffer bucket fixing structure in a specific embodiment of the present application;

[0026] FIG8 shows a schematic structural diagram of a buffer bucket fixing structure in a specific embodiment of the present application.

[0027] Among them, the above-mentioned drawings include the following figure marks: 10, mounting block; 11, through hole; 20, liquid level sensor; 21, mounting ear; 30, first connecting member; 40, elastic member; 50, base; 60, first bracket; 61, mounting groove; 62, avoidance gap; 70, second bracket; 80, buffer barrel; 90, limit plate; 100, liquid level detection assembly. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0030] In this application, unless otherwise specified, directional words such as "up, down, top, bottom" are usually used with reference to the directions shown in the drawings, or with reference to the components themselves in the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above directional words are not used to limit this application.

[0031] Obviously, the embodiments described above are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0032] In order to solve the problem of inaccurate liquid level detection in the buffer bucket in the related art, the present application provides a liquid level detection component and a buffer bucket fixing structure. Among them, the buffer bucket fixing structure includes the liquid level detection component described below.

[0033] As shown in Figures 1 to 3 and 5, the liquid level detection assembly includes a mounting block 10, a liquid level sensor 20, a first connecting member 30, and an elastic member 40. The mounting block 10 is provided with a through hole 11. The liquid level sensor 20 is connected to the mounting block 10. The first connecting member 30 is passed through the through hole 11 and is used to connect the liquid level detection assembly to the bracket of the buffer barrel fixing structure. A portion of the elastic member 40 is accommodated in the through hole 11 and is sleeved on the first connecting member 30. The through hole 11 has a stepped surface. One end of the elastic member 40 abuts the stepped surface, and the other end abuts the bracket, providing a force for the liquid level sensor 20 to move away from the bracket.

[0034] The first connecting member 30 is connected to the bracket through the through hole 11, and the other part of the elastic member 40 extends out of the through hole 11 and abuts against the bracket, so that the elastic member 40 has a certain deformation length and deformation space, thereby pushing the mounting block 10 and the liquid level sensor 20 to keep as close as possible to the buffer barrel 80. While ensuring a close fit, the length of the liquid level sensor 20 extending out of the bracket can be flexibly adjusted, so that it is suitable for buffer barrels 80 of different sizes, and avoids the influence of bracket processing errors, liquid level sensor installation errors, etc., thereby ensuring the detection accuracy of the liquid level sensor 20.

[0035] As shown in Figures 1 and 5, the liquid level sensor 20 is provided with a mounting ear 21, and the mounting block 10 is correspondingly provided with a mounting hole. The liquid level detection assembly also includes a second connecting member, which passes through the mounting ear 21 and the mounting hole in sequence to connect the liquid level sensor 20 and the mounting block 10.

[0036] Specifically, in this embodiment, there are two mounting ears 21 , which are arranged on both sides of the liquid level sensor 20 , ensuring that the liquid level sensor 20 is connected and fixed to the mounting block 10 without movement.

[0037] As shown in Figures 1 and 3, in this embodiment, there are two through holes 11, located at opposite corners of the mounting block 10. Furthermore, the number of through holes 11 can be greater, for example, four, located at the four corners of the mounting block 10. Of course, multiple through holes 11 can also be arranged at intervals along the circumference of the mounting block 10, and the selection can be based on actual needs.

[0038] In this embodiment, the first connecting member 30 and the second connecting member are screws, and the elastic member 40 is a spring.

[0039] In this embodiment, through-hole 11 comprises a first, second, and third segment connected in sequence. The aperture of the second segment is smaller than that of the first and third segments, forming stepped surfaces at both ends of the second segment. A portion of elastic member 40 is accommodated within the first segment, and the diameter of elastic member 40 is larger than the aperture of the second segment, thereby abutting against the stepped surfaces. Furthermore, the head of first connector 30 is equal to or slightly smaller than the aperture of the third segment, thereby contacting the stepped surface on that side, preventing mounting block 10 from separating from first connector 30.

[0040] In this embodiment, the mounting block 10 is made of plastic.

[0041] Specifically, the plastic material can reduce signal interference to the liquid level sensor 20 , thereby ensuring the accuracy of data measurement.

[0042] As shown in Figures 4 to 7, the present application also provides a buffer bucket fixing structure, which includes a bracket, a base 50, and the aforementioned liquid level detection assembly 100. The bracket includes a first bracket 60 and a second bracket 70, which are respectively positioned on either side of the base 50. The buffer bucket 80 is placed on the base 50 and located between the first bracket 60 and the second bracket 70. The liquid level detection assembly 100 is disposed on the first bracket 60.

[0043] Specifically, the first bracket 60 and the second bracket 70 are located on opposite sides of the base 50, thereby horizontally securing the buffer bucket 80. The base 50 has a receiving groove, and the bottom of the buffer bucket 80 fits into the interior of the groove. The liquid level detection assembly 100 on the first bracket 60 faces one side of the buffer bucket 80.

[0044] In this embodiment, the first bracket 60 and the second bracket 70 are located in the middle of the side of the base 50, thereby securing the buffer bucket 80 in the middle of the side, thereby improving the securing effect. Furthermore, a plurality of mating tabs are provided within the receiving groove, spaced apart along the circumference of the receiving groove. Specifically, the mating tabs are vertically positioned within the receiving groove and have mating surfaces inclined toward the center of the receiving groove. In other words, the plurality of mating tabs form a receiving space with a gradually decreasing cross-sectional area from top to bottom, and the bottom of the buffer bucket 80 is accommodated within the receiving space. This arrangement improves the securing effect of the base 50 on the buffer bucket 80.

[0045] As shown in FIG4 , the first bracket 60 has a mounting groove 61 , the notch of the mounting groove 61 faces the buffer barrel 80 , at least a portion of the liquid level detection assembly 100 is accommodated in the mounting groove 61 , and one side of the buffer barrel 80 is in contact with the liquid level sensor 20 .

[0046] Specifically, the wall of the mounting groove 61 is provided with a threaded hole, and the first connecting member 30 extends through the through hole 11 and then into the threaded hole, thereby being threadedly secured to the first bracket 60. When not in use, the elastic force of the elastic member 40 causes a portion of the mounting block 10 and the liquid level sensor 20 to be horizontally pushed out of the notch of the mounting groove 61. At this time, the first connecting member 30 abuts against the stepped surface within the through hole 11 to limit the position. When the buffer bucket 80 is placed, the mounting block 10 and the liquid level sensor 20 are manually moved away from the buffer bucket 80 along the first connecting member 30. The elastic member 40 is compressed, and the mounting block 10 and the liquid level sensor 20 are pushed back into the mounting groove 61. The buffer bucket 80 can be freely placed in or out without contacting the liquid level sensor 20, thus preventing damage to the liquid level detection assembly 100 during placement and removal of the buffer bucket 80. This also facilitates removal and placement of the buffer bucket 80. It will be appreciated that when not in use, a predetermined distance exists between mounting block 10 and the bottom of mounting slot 61, namely the length by which elastic member 40 extends beyond through-hole 11. This allows mounting block 10 and liquid level sensor 20 room to move, allowing them to enter mounting slot 61 when necessary to avoid buffer bucket 80. Once buffer bucket 80 is placed on base 50, mounting block 10 and liquid level sensor 20 are no longer squeezed and, under the elastic force of elastic member 40, are directed toward buffer bucket 80, ensuring a tight fit between the liquid level sensor 20 and the side of buffer bucket 80.

[0047] In order to detect different liquid level heights, there are multiple installation slots 61 and liquid level detection components 100. The multiple installation slots 61 are arranged at intervals along the height direction of the first bracket 60, and the multiple liquid level detection components 100 are arranged in a one-to-one correspondence with the multiple installation slots 61.

[0048] In this embodiment, there are three mounting slots 61 , which are spaced apart in the vertical direction. Each mounting slot 61 is provided with a liquid level detection assembly 100 , and three liquid level sensors 20 respectively detect the liquid levels at the high, medium and low positions of the buffer barrel 80 .

[0049] As shown in FIG. 4 to FIG. 7 , the first bracket 60 defines an escape notch 62 communicating with the mounting groove 61 for escaping at least a portion of the liquid level sensor 20 .

[0050] Specifically, the vertical dimension of the liquid level sensor 20 is larger than the mounting groove 61. In order to ensure that the buffer bucket 80 does not collide with the liquid level detection assembly 100 when taking and placing the buffer bucket 80, a corresponding avoidance gap 62 needs to be set so that the other part of the liquid level sensor 20 can be accommodated in the avoidance gap 62 to avoid the buffer bucket 80.

[0051] As shown in Figures 6-8, the buffer bucket fixing structure also includes a retaining plate 90. This retaining plate 90 is located above the buffer bucket 80 and is connected at both ends to the first bracket 60 and the second bracket 70. The retaining plate 90 restrains the buffer bucket 80 from above. Working in conjunction with the base 50 and the first and second brackets 60 and 70, the retaining plate 90 simultaneously retains the buffer bucket 80 in four positions: up, down, left, and right, ensuring that the buffer bucket 80 is securely positioned within the buffer bucket fixing structure. Furthermore, the shape of the retaining plate 90 matches the top surface of the buffer bucket 80, enhancing the retaining effect.

[0052] In this embodiment, one end of the retaining plate 90 is rotatably connected to the top of the first bracket 60, and the other end is detachably connected, for example, by a snap or screw connection, to the top of the second bracket 70. To place the buffer bucket 80, the retaining plate 90 is first opened from the top of the second bracket 70 and rotated to one side to allow the buffer bucket 80 to enter the base 50. The retaining plate 90 is then rotated back to its original position and snapped or screwed to the second bracket 70 to secure the buffer bucket 80.

[0053] From the above description, it can be seen that the above-mentioned embodiment of the present application achieves the following technical effects: by setting the liquid level detection component including the mounting block 10, the liquid level sensor 20, the first connecting member 30 and the elastic member 40, the mounting block 10 is provided with a through hole 11, the liquid level sensor 20 is connected to the mounting block 10, the first connecting member 30 is penetrated by the through hole 11, and is used to connect the liquid level detection component to the bracket of the buffer barrel fixed structure, a part of the elastic member 40 is accommodated in the through hole 11 and is sleeved on the first connecting member 30, the through hole 11 has a step surface, one end of the elastic member 40 abuts against the step surface, and the other end abuts against the bracket, for the liquid level detection component. The sensor 20 provides a force away from the bracket, so that the first connecting member 30 passes through the through hole 11 and is connected to the bracket, and the other part of the elastic member 40 extends out of the through hole 11 and abuts against the bracket, so that the elastic member 40 has a certain deformation length and deformation space, thereby pushing the mounting block 10 and the liquid level sensor 20 to keep as close as possible to the buffer barrel 80. While ensuring a close fit, the length of the liquid level sensor 20 extending out of the bracket can be flexibly adjusted, so that it is suitable for buffer barrels 80 of different sizes, and avoids the influence of bracket processing errors, liquid level sensor installation errors, etc., thereby ensuring the detection accuracy of the liquid level sensor 20.

[0054] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0055] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0056] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A liquid level detection component, characterized in that, Comprising: An installation block (10), the installation block (10) being provided with a through hole (11); A liquid level sensor (20), the liquid level sensor (20) being connected to the installation block (10); A first connecting member (30), the first connecting member (30) passing through the through hole (11) for connecting the liquid level detection assembly to the bracket of the buffer bucket fixing structure; An elastic member (40), a part of the elastic member (40) being accommodated in the through hole (11) and sleeved on the first connecting member (30). There is a stepped surface in the through hole (11). One end of the elastic member (40) abuts against the stepped surface, and the other end abuts against the bracket, providing a force for the liquid level sensor (20) to move away from the bracket.

2. The liquid level detection assembly according to claim 1, wherein The liquid level sensor (20) is provided with mounting ears (21). The installation block (10) is correspondingly provided with mounting holes. The liquid level detection assembly further includes a second connecting member. The second connecting member sequentially passes through the mounting ears (21) and the mounting holes for connecting the liquid level sensor (20) and the installation block (10).

3. The liquid level detection component according to claim 2, wherein There are two mounting ears (21), and the two mounting ears (21) are arranged on both sides of the liquid level sensor (20).

4. The liquid level detection assembly according to claim 2, wherein The first connecting member (30) and / or the second connecting member is a screw; and / or The elastic member (40) is a spring.

5. The liquid level detection assembly according to any one of claims 1 to 4, characterized in that, There are at least two through holes (11), and the at least two through holes (11) are respectively located at the diagonals of the installation block (10).

6. The liquid level detection assembly according to any one of claims 1 to 5, characterized in that, The through hole (11) includes a first section, a second section and a third section connected in sequence. The aperture of the second section is smaller than the aperture of the first section and the aperture of the third section, so that stepped surfaces are respectively formed at both ends of the second section. A part of the elastic member (40) is accommodated in the first section and the diameter of the elastic member (40) is greater than the aperture of the second section, so as to abut against the stepped surface. The head of the first connecting member (30) is less than or equal to the aperture of the third section, so as to be limited and blocked by the stepped surface.

7. The liquid level detection assembly according to any one of claims 1 to 6, characterized in that, The installation block (10) is made of plastic material.

8. A buffer barrel fixing structure, characterized in that, Comprising a bracket, a base (50) and the liquid level detection assembly (100) according to any one of claims 1 to 7. The bracket includes a first bracket (60) and a second bracket (70). The first bracket (60) and the second bracket (70) are respectively erected on both sides of the base (50). A buffer bucket (80) is placed on the base (50) and located between the first bracket (60) and the second bracket (70). The liquid level detection assembly (100) is arranged on the first bracket (60).

9. The buffer bucket fixing structure according to claim 8, wherein, The first bracket (60) has an installation groove (61). The notch of the installation groove (61) faces the buffer bucket (80). At least a part of the liquid level detection assembly (100) is accommodated in the installation groove (61). One side of the buffer bucket (80) is attached to the liquid level sensor (20).

10. The buffer bucket fixing structure according to claim 9, characterized in that, The groove wall of the installation groove (61) is provided with threaded holes, and the first connecting piece (30) passes through the through hole (11) and then extends into the threaded holes, so as to be screwed and fixed with the first bracket (60).

11. The buffer barrel fixing structure according to claim 9 or 10, characterized in that, In the unused state, there is a preset distance between the installation block (10) and the bottom of the installation groove (61).

12. The buffer barrel fixing structure according to any one of claims 9 to 11, characterized in that, Both the installation groove (61) and the liquid level detection assembly (100) are multiple. The multiple installation grooves (61) are arranged at intervals along the height direction of the first bracket (60), and the multiple liquid level detection assemblies (100) are arranged in one-to-one correspondence with the multiple installation grooves (61).

13. The buffer barrel fixing structure according to any one of claims 9 to 12, characterized in that, The first bracket (60) is provided with an avoidance notch (62) communicating with the installation groove (61) for avoiding at least a part of the liquid level sensor (20).

14. The buffer bucket fixing structure according to any one of claims 8 to 13, characterized in that, The buffer bucket fixing structure further includes a limiting plate (90). The limiting plate (90) is located above the buffer bucket (80) and its two ends are respectively connected to the first bracket (60) and the second bracket (70).

15. The buffer barrel fixing structure according to claim 14, wherein, One end of the limiting plate (90) is rotatably connected to the top of the first bracket (60), and the other end is detachably connected to the top of the second bracket (70).

16. The buffer bucket fixing structure according to any one of claims 8 to 15, characterized in that, The base (50) has a receiving groove, and the bottom of the buffer bucket (80) is attached to the inside of the receiving groove.

17. The buffer bucket fixing structure according to claim 16, characterized in that, A plurality of fitting pieces are arranged in the receiving groove. The plurality of fitting pieces are arranged at intervals along the circumferential direction of the receiving groove. The fitting piece has a fitting surface inclined towards the center of the receiving groove, so that the plurality of fitting pieces form a receiving space with a gradually decreasing cross-sectional area from top to bottom.

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