Metering device convenient for reading metering data

Abstract

The utility model relates to the field of metering devices, and discloses a metering device convenient to read metering data, which comprises a barrel, a connecting rod is connected to the center of the top end of the barrel in a sliding and penetrating manner, a piston in contact with the inner wall of the barrel is fixedly connected to the bottom end of the connecting rod, and a fixed disc is arranged at the top end of the barrel. The center of the fixing disc is fixedly connected to the outer side of the connecting rod, an annular groove with the annular section is formed in the barrel, a butt joint groove communicating with the annular groove is formed in one side of the annular groove, an annular plate is slidably connected into the annular groove, an extrusion plate slidably connected with the inner wall of the butt joint groove is fixedly connected to the bottom end of the annular plate, and a shell is fixedly connected to one side of the butt joint groove. A plurality of transverse grooves are evenly formed in the shell in the vertical direction, each transverse groove is fixedly provided with a positioning assembly in the horizontal direction, and the device facilitates quantitative extraction of an integer volume of solution.

Description

Technical Field

[0001] The utility model relates to the field of metering devices, in particular to a metering device which is convenient for reading metering data. Background Art

[0002] A metering device is a device or tool used to measure, record, monitor or evaluate a physical quantity. These devices can be used in a variety of industries and fields, ranging from scientific research to industrial production. When testing and analyzing liquids, metering devices are needed to extract the liquid quantitatively.

[0003] For example, the utility model disclosed in the publication (announcement) number: CN221223910U discloses a metering device that is convenient for reading metering data, including a cylinder, a connecting rod passing through the middle of the top wall of the cylinder, the bottom end of the connecting rod passing through the inner wall of the cylinder and fixedly connected to a piston, a connecting shell fixedly connected to the front side of the outer periphery of the cylinder, a movable groove provided on the top wall of the cylinder, a ring plate slidably connected to the inner wall of the movable groove, an extrusion plate fixedly connected to the front side of the bottom end of the ring plate, a plurality of through holes provided on the front wall of the connecting shell, the rear ends of the plurality of through holes all pass through the through groove, and a movable block is slidably connected to each of the plurality of through holes. In the utility model, through the combined action of the connecting rod, piston, cylinder, fixed plate, ring plate, movable groove, extrusion plate, movable block and through hole, the staff can know the approximate volume of the liquid in the cylinder without having to look at the liquid surface in the cylinder, thereby achieving the effect of facilitating the staff to read the data.

[0004] The metering device of the above-mentioned utility model squeezes the moving block through the squeezing plate, thereby judging the volume of liquid in the cylinder by the displacement of the moving block, and extracting an integer amount of solution volume by the interaction between the moving block and the squeezing block to extract the corresponding volume of solution. However, it controls the movement process of the piston through the connecting rod. When extracting an integer volume of solution, although the corresponding moving block can be squeezed and displaced to one side by the squeezing block to observe whether the quantitative volume of solution is extracted, in actual operation, the staff needs to pull the connection to control the movement of the piston while observing whether the corresponding moving block is displaced, which undoubtedly increases the workload and is also difficult to control. Summary of the Invention

[0005] The purpose of the present invention is to provide a metering device that is convenient for reading metering data, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a metering device that is convenient for reading metering data, comprising a cylinder, a connecting rod slidingly passing through the center position of the top end of the cylinder, and a piston in contact with the inner wall of the cylinder is fixedly connected to the bottom end of the connecting rod, a fixed disk is provided at the top end of the cylinder, and the center position of the fixed disk is fixedly connected to the outside of the connecting rod, the cylinder is provided with an annular groove with a ring-shaped cross-section, and a docking groove connected to it is provided on one side of the annular groove, a ring plate is slidably connected in the annular groove, and the bottom end of the ring plate is fixedly connected to an extrusion plate slidably connected to the inner wall of the docking groove, a shell is fixedly connected to one side of the docking groove, and a plurality of transverse grooves are evenly provided on the shell along the vertical direction, and each of the transverse grooves is fixedly installed with a positioning component along the horizontal direction.

[0007] Preferably, the top end of the ring plate is fixedly connected to the bottom end of the fixed plate, and one end of each transverse groove is connected to one end of the docking groove.

[0008] Preferably, each positioning assembly comprises an abutment block slidably connected to the inner wall of the corresponding transverse groove, and limiting grooves communicating with one end of the transverse groove are respectively formed on both sides of the abutment block.

[0009] Preferably, the inner wall of each limiting groove is provided with a limiting protrusion that slides in the horizontal direction, and one end of the two limiting protrusions close to each other is fixedly connected to the two ends of the abutting block.

[0010] Preferably, each of the abutment blocks is fixedly connected to a positioning plate at one end away from the housing.

[0011] Preferably, each of the positioning plates is fixedly connected to one end of the housing via an inserting rod.

[0012] Preferably, a plurality of scale lines corresponding to each positioning component are provided on one side of the housing in the vertical direction.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The utility model drives the piston to move along the inner wall of the cylinder by pulling the connecting rod to one side, thereby drawing the liquid from the bottom end of the cylinder into the cylinder. At the same time, the connecting rod drives the fixed plate to move in the vertical direction, so that the ring plate drives the extrusion plate to move in the vertical direction along the inner wall of the docking groove. When it is necessary to extract an integer volume of solution, the insertion rod of the positioning assembly of the corresponding scale line is removed, and the positioning plate is pushed to slide along the inner wall of the transverse groove through the abutment block, so that the abutment block is pushed close to the side of the cylinder to the inside of the docking groove, and then the positioning plate is fixed to the outer wall of the shell by the insertion rod. When the extrusion plate moves to the specified scale line along with the ring plate, the abutment block extends to one end of the inner wall of the docking groove and abuts against the extrusion plate, thereby realizing the extraction of a quantitative volume of solution without the need for the operator to observe while operating, thereby increasing the workload. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 This is an enlarged schematic diagram of the structure at point A of the present utility model.

[0017] In the figure: 1. Cylinder; 2. Connecting rod; 3. Piston; 4. Annular groove; 5. Ring plate; 6. Docking groove; 7. Extrusion plate; 8. Housing; 9. Transverse groove; 10. Positioning assembly; 11. Fixed plate; 801. Limiting groove; 101. Abutment block; 102. Limiting protrusion; 103. Positioning plate. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0019] See also Figure 1-Figure 2 The figure shows a metering device that is convenient for reading metering data, including a cylinder 1, a connecting rod 2 is slidably connected to the center position of the top end of the cylinder 1, and the bottom end of the connecting rod 2 is fixedly connected to a piston 3 in contact with the inner wall of the cylinder 1, a fixed disk 11 is provided at the top end of the cylinder 1, and the center position of the fixed disk 11 is fixedly connected to the outside of the connecting rod 2, the cylinder 1 is provided with an annular groove 4 with a ring-shaped cross-section, and a docking groove 6 connected to the annular groove 4 is provided on one side, a ring plate 5 is slidably connected in the annular groove 4, and the bottom end of the ring plate 5 is fixedly connected to an extrusion plate 7 slidably connected to the inner wall of the docking groove 6, a shell 8 is fixedly connected to one side of the docking groove 6, and the shell 8 is evenly provided with a plurality of transverse grooves 9 in the vertical direction, and each transverse groove 9 is fixedly installed with a positioning assembly 10 in the horizontal direction.

[0020] In this embodiment, the top of the ring plate 5 is fixedly connected to the bottom end of the fixed disk 11, and one end of each transverse groove 9 is connected to one end of the docking groove 6. Each positioning component 10 includes an abutment block 101 that is slidably connected to the inner wall of the corresponding transverse groove 9, and both sides of the abutment block 101 are respectively provided with a limiting groove 801 that is connected to one end of the transverse groove 9. The inner wall of each limiting groove 801 is respectively provided with a limiting protrusion 102 that slides along the horizontal direction, and the two limiting protrusions 102 are close to each other at one end and are respectively fixedly connected to the two ends of the abutment block 101. Each abutment block 101 is fixedly connected to a positioning plate 103 at the end away from the shell 8. Each positioning plate 103 is respectively plugged and fixed to one end of the shell 8 through an insertion rod. Several scale lines corresponding to each positioning component 10 are provided on one side of the shell 8 in the vertical direction.

[0021] Furthermore, by pulling the connecting rod 2 to one side, the piston 3 is driven to move along the inner wall of the cylinder 1, thereby drawing the liquid from the bottom end of the cylinder 1 into the cylinder 1. At the same time, the connecting rod 2 drives the fixed plate 11 to move in the vertical direction, so that the ring plate 5 drives the extrusion plate 7 to move in the vertical direction along the inner wall of the docking groove 6. When it is necessary to extract an integer volume of solution, the insertion rod of the positioning assembly 10 of the corresponding scale line is removed, and the positioning plate 103 is pushed to slide along the inner wall of the transverse groove 9 through the abutment block 101, so that the abutment block 101 is pushed close to the side of the cylinder 1 to the inside of the docking groove 6, and then the positioning plate 103 is fixed to the outer wall of the shell 8 by the insertion rod. When the extrusion plate 7 moves to the specified scale line along with the ring plate 5, it extends to one end of the inner wall of the docking groove 6 through the abutment block 101 to abut against the extrusion plate 7, thereby realizing the extraction of a quantitative volume of solution without the need for the operator to observe while operating, thereby increasing the workload.

[0022] The working principle of the present invention is as follows: by pulling the connecting rod 2 to one side, the piston 3 is driven to move along the inner wall of the cylinder 1, thereby drawing the liquid from the bottom end of the cylinder 1 into the cylinder 1, and at the same time, the connecting rod 2 drives the fixed plate 11 to move in the vertical direction, so that the ring plate 5 drives the extrusion plate 7 to move in the vertical direction along the inner wall of the docking groove 6. When it is necessary to extract an integer volume of solution, the insertion rod of the positioning assembly 10 of the corresponding scale line is removed, and the positioning plate 103 is pushed to slide along the inner wall of the transverse groove 9 through the abutment block 101, so that the abutment block 101 is pushed close to one side of the cylinder 1 to the inside of the docking groove 6, and then the positioning plate 103 is fixed to the outer wall of the shell 8 by the insertion rod. When the extrusion plate 7 moves to the specified scale line along with the displacement of the ring plate 5, the abutment block 101 extends to one end of the inner wall of the docking groove 6 and abuts against the extrusion plate 7, thereby realizing the extraction of a quantitative volume of solution, without the need for the operator to observe while operating, thereby increasing the workload.

[0023] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A metering device for facilitating reading of metering data, comprising a cylinder (1), characterized in that: The top center position of the cylinder (1) is slidably connected with a connecting rod (2), and the bottom end of the connecting rod (2) is fixedly connected with a piston (3) in contact with the inner wall of the cylinder (1). The top of the cylinder (1) is provided with a fixed disk (11), and the center position of the fixed disk (11) is fixedly connected to the outside of the connecting rod (2). The cylinder (1) is provided with an annular groove (4) with an annular cross section, and a docking groove (6) connected to the annular groove (4) is provided on one side. A ring plate (5) is slidably connected in the annular groove (4), and the bottom end of the ring plate (5) is fixedly connected with an extrusion plate (7) slidably connected to the inner wall of the docking groove (6). One side of the docking groove (6) is fixedly connected with a shell (8), and the shell (8) is evenly provided with a plurality of transverse grooves (9) along the vertical direction, and each of the transverse grooves (9) is fixedly installed with a positioning assembly (10) along the horizontal direction.

2. A metering device for facilitating reading of metering data according to claim 1, characterized in that: The top end of the ring plate (5) is fixedly connected to the bottom end of the fixed plate (11), and one end of each transverse groove (9) is connected to one end of the docking groove (6).

3. A metering device for facilitating reading of metering data according to claim 2, characterized in that: Each positioning assembly (10) comprises an abutment block (101) slidably connected to the inner wall of the corresponding transverse groove (9), and limiting grooves (801) communicating with one end of the transverse groove (9) are respectively formed on both sides of the abutment block (101).

4. A metering device for facilitating reading of metering data according to claim 3, characterized in that: The inner wall of each limiting groove (801) is provided with a limiting protrusion (102) that slides in the horizontal direction, and one end of the two limiting protrusions (102) close to each other is fixedly connected to the two ends of the abutting block (101).

5. A metering device for facilitating reading of metering data according to claim 4, characterized in that: Each of the abutment blocks (101) is fixedly connected to a positioning plate (103) at one end away from the housing (8).

6. The metering device for facilitating reading of metering data according to claim 5, characterized in that: Each positioning plate (103) is respectively plugged and fixed to one end of the housing (8) via an insertion rod.

7. A metering device for facilitating reading of metering data according to claim 6, characterized in that: A plurality of scale lines corresponding to each positioning assembly (10) are provided on one side of the housing (8) in a vertical direction.

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