Liquid filling device

Abstract

The utility model discloses a liquid filling device, which belongs to the technical field of liquid detection, and comprises a filling cylinder, one end of the filling cylinder is provided with a filling port, one end of the filling port is sleeved with a filling head, a push rod is embedded in the filling cylinder, one end of the push rod is fixedly connected with a special-shaped pressing block, and the other end of the push rod is fixedly connected with a leather plug. The outer circumferential surface of the rubber plug is in close contact with the inner wall of the filling cylinder, and the outer circumferential surface of the filling cylinder is fixedly connected with an internal thread connecting piece, so that when the special-shaped pressing block is matched with the push rod to push the rubber plug to fill liquid, the moving special-shaped pressing block can be finally limited by the threaded rod, and meanwhile, the rubber plug is prevented from being blocked by the threaded rod. And the final position of the rubber plug is just flush with the final position of the arc-shaped marking block, and once the liquid reaches the filling milliliter number, the special-shaped pressing block is limited and cannot be pushed continuously, so that the phenomenon of excessive liquid filling caused by poor force control by personnel is avoided, and the accuracy of an experimental result is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid detection, and more specifically to a liquid filling device. Background Art

[0002] In the process of testing and inspection in experiments, it is often involved to absorb and inject some liquid reagents. Most traditional filling devices rely on handheld syringes for filling. In the process of filling liquid with traditional handheld syringes, personnel must control the force of pushing the liquid, but after working for a long time, personnel will experience hand fatigue and unstable force. This phenomenon will cause personnel to often not control the force well when pushing the liquid for filling, resulting in excessive liquid filling, which will greatly affect the accuracy of the experimental results. Therefore, the utility model provides a liquid filling device. Summary of the invention

[0003] In view of the problems existing in the prior art, the purpose of the utility model is to provide a liquid filling device, which solves the problem that in the prior art, when a person holds a syringe and fills the liquid with the liquid, the person needs to control the force of pushing the liquid. However, after working for a long time, the person will experience hand fatigue and unstable force. This phenomenon will cause the person to often fail to control the force when pushing the liquid for filling, resulting in excessive liquid filling, which will greatly affect the accuracy of the experimental results.

[0004] To solve the above problems, the utility model adopts the following technical solutions.

[0005] A liquid filling device comprises a filling cylinder, one end of which is provided with a filling port, one end of which is sleeved with a filling head, a push rod is embedded in the filling cylinder, one end of which is fixedly connected with a special-shaped pressure block, the other end of which is fixedly connected with a leather plug, the outer circumferential surface of which is in close contact with the inner wall of the filling cylinder, the outer circumferential surface of which is fixedly connected with an internal threaded connector, a threaded rod is passed through and threadedly connected with the internal threaded connector, one end of which is rotatably connected with an arc-shaped marking block, and the other end of which is in contact with the special-shaped pressure block;

[0006] The outer circumferential surface of the filling cylinder is provided with a scale area.

[0007] Furthermore, one end of the threaded rod is fixedly connected to a bearing, the outer circumferential surface of the bearing is fixedly connected to a sleeve, and the arc-shaped marking block is fixedly connected to the outer circumferential surface of the sleeve.

[0008] Furthermore, a protective groove is provided on the outer circumferential surface of one end of the threaded rod.

[0009] Furthermore, a pair of mutually symmetrical side wings are fixedly connected to the outer circumferential surface of the filling cylinder.

[0010] Furthermore, when one end of the threaded rod contacts the special-shaped pressing block, one side of the arc-shaped marking block is also flush with one side of the leather plug.

[0011] Furthermore, the scale area corresponds to the arc-shaped marking block.

[0012] Beneficial effects: Compared with the prior art, the advantages of the utility model are:

[0013] (1) In this solution, the personnel must first pull the push rod and cooperate with the filling head to absorb the liquid, and then push the push rod appropriately to exhaust the air inside the filling cylinder, and then rotate the threaded rod so that one end of the threaded rod contacts one side of the special-shaped pressure block. At the same time, one side of the arc-shaped marking block is also flush with one side of the leather plug. When the preparations are completed and the liquid is started to be filled, first rotate the threaded rod in the opposite direction. One end of the threaded rod will move away from the special-shaped pressure block. At the same time, the other end of the threaded rod will drive the arc-shaped marking block to move on the scale area on the surface of the filling cylinder. The starting position of the arc-shaped marking block The final position is the number of milliliters filled. Since the starting position of the arc-shaped marking block is exactly flush with the starting position of the leather plug, when the special-shaped pressing block cooperates with the push rod to push the leather plug to add liquid, the moving special-shaped pressing block will eventually be limited by the threaded rod. At the same time, the final position of the leather plug is also exactly flush with the final position of the arc-shaped marking block. Once the liquid reaches the number of milliliters filled, the special-shaped pressing block will be limited and cannot be pushed further, so as to avoid the phenomenon of excessive liquid filling caused by poor control of the force by personnel, thereby improving the accuracy of the experimental results;

[0014] (2) In this solution, when the threaded rod is rotated and reset, the extension and retraction of the push rod will not be interfered by one end of the threaded rod, so that the filling device can be used normally without the need to control the filling amount;

[0015] (3) In this scheme, the arc-shaped marking block is adjusted by rotating the threaded rod. Since the threaded rod and the internal threaded connector have a self-locking property in the horizontal direction, the adjusted arc-shaped marking block can be directly kept stable, which is convenient for personnel to operate. Moreover, when the threaded rod is squeezed by the special-shaped pressure block, it will not move, thereby ensuring the limiting effect of the special-shaped pressure block. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of another perspective of the utility model as a whole;

[0018] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0019] Figure 4 This is a schematic diagram of the overall structure of the utility model in a state of waiting for filling;

[0020] Figure 5 It is a structural schematic diagram of the utility model in the overall filling state;

[0021] Figure 6 It is a structural schematic diagram of the push rod and the threaded rod of the utility model.

[0022] Description of the numbers in the figure:

[0023] 1. Filling cylinder; 11. Scale area; 12. Side wing; 2. Filling port; 3. Filling head; 4. Push rod; 5. Special-shaped pressure block; 6. Leather plug; 7. Internal thread connector; 8. Threaded rod; 81. Bearing; 82. Kit; 83. Anti-skid groove; 9. Arc-shaped marking block. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model. Example

[0025] like Figure 1-6 As shown, a liquid filling device comprises a filling cylinder 1, a filling port 2 is arranged at one end of the filling cylinder 1, a filling head 3 is sleeved at one end of the filling port 2, a push rod 4 is embedded in the filling cylinder 1, a special-shaped pressure block 5 is fixedly connected to one end of the push rod 4, a leather plug 6 is fixedly connected to the other end of the push rod 4, the outer circumference of the leather plug 6 is in close contact with the inner wall of the filling cylinder 1, an internal threaded connector 7 is fixedly connected to the outer circumference of the filling cylinder 1, a threaded rod 8 is passed through and threadedly connected to the internal threaded connector 7, an arc-shaped marking block 9 is rotatably connected to one end of the threaded rod 8, and the other end of the threaded rod 8 is in contact with the special-shaped pressure block 5;

[0026] The outer circumferential surface of the filling cylinder 1 is provided with a scale area 11, and the scale area 11 corresponds to the arc-shaped marking block 9;

[0027] When one end of the threaded rod 8 contacts the special-shaped pressing block 5 , one side of the arc-shaped marking block 9 is also flush with one side of the leather plug 6 .

[0028] When in use, the operator must first pull the push rod 4 to cooperate with the filling head 3 to absorb the liquid, and then push the push rod 4 appropriately to discharge the air inside the filling cylinder 1, and then rotate the threaded rod 8 so that one end of the threaded rod 8 contacts one side of the special-shaped pressure block 5. At the same time, one side of the arc-shaped marking block 9 is also flush with one side of the leather plug 6. When preparations are made and the liquid is started to be filled, the threaded rod 8 is first rotated in the opposite direction. One end of the threaded rod 8 will move away from the special-shaped pressure block 5. At the same time, the other end of the threaded rod 8 will drive the arc-shaped marking block 9 to move on the scale area 11 on the surface of the filling cylinder 1. The starting position to the final position is the number of milliliters filled. Since the starting position of the arc-shaped marking block 9 is exactly flush with the starting position of the leather plug 6, when the special-shaped pressing block 5 cooperates with the push rod 4 to push the leather plug 6 to fill the liquid, the moving special-shaped pressing block 5 will eventually be limited by the threaded rod 8. At the same time, the final position of the leather plug 6 is also exactly flush with the final position of the arc-shaped marking block 9. Once the liquid reaches the number of milliliters filled, the special-shaped pressing block 5 will be limited and cannot be pushed further, so as to avoid the phenomenon of excessive liquid filling caused by poor control of the force by personnel, thereby improving the accuracy of the experimental results.

[0029] When the threaded rod 8 is rotated and reset, the extension and retraction of the push rod 4 will not be interfered by one end of the threaded rod 8, so that the filling device can be used normally without the need to control the filling amount;

[0030] The arc-shaped marking block 9 is adjusted by rotating the threaded rod 8. Since the threaded rod 8 and the internal threaded connector 7 are self-locking in the horizontal direction, the adjusted arc-shaped marking block 9 can remain stable directly, which is convenient for personnel to operate. Moreover, when the threaded rod 8 is squeezed by the special-shaped pressing block 5, it will not move, thereby ensuring the limiting effect of the special-shaped pressing block 5.

[0031] like Figure 2-3 As shown, one end of the threaded rod 8 is fixedly connected to a bearing 81 , the outer circumferential surface of the bearing 81 is fixedly connected to a sleeve 82 , and the arc-shaped marking block 9 is fixedly connected to the outer circumferential surface of the sleeve 82 .

[0032] During use, when a person rotates the threaded rod 8 , the arc-shaped marking block 9 will not rotate synchronously with the threaded rod 8 .

[0033] like Figure 5 As shown, a protective groove 83 is formed on the outer circumferential surface of one end of the threaded rod 8 .

[0034] When in use, the protective groove 83 increases the friction between the hand of the person and the threaded rod 8 , so that the person is not likely to slip when rotating the threaded rod 8 .

[0035] like Figure 1 As shown, a pair of symmetrical side wings 12 are fixedly connected to the outer circumferential surface of the filling cylinder 1.

[0036] When in use, the side wing 12 is used to enable a person to push the push rod 4 with one hand to perform filling.

[0037] In summary, the specific working process of this scheme is as follows: the personnel must first pull the push rod 4 to cooperate with the filling head 3 to absorb the liquid, and then push the push rod 4 appropriately to discharge the air inside the filling cylinder 1, and then rotate the threaded rod 8 so that one end of the threaded rod 8 contacts one side of the special-shaped pressure block 5. At the same time, one side of the arc-shaped marking block 9 is also flush with one side of the leather plug 6. When the preparations are ready and the liquid is started to be filled, the threaded rod 8 is first rotated in the opposite direction, and one end of the threaded rod 8 will be away from the special-shaped pressure block 5. At the same time, the other end of the threaded rod 8 will drive the arc-shaped marking block 9 to move on the scale area 11 on the surface of the filling cylinder 1. The starting position to the final position of the arc-shaped marking block 9 is the number of milliliters filled. Since the starting position of the arc-shaped marking block 9 is exactly flush with the starting position of the leather plug 6, when the special-shaped pressing block 5 cooperates with the push rod 4 to push the leather plug 6 to fill the liquid, the moving special-shaped pressing block 5 will eventually be limited by the threaded rod 8. At the same time, the final position of the leather plug 6 is also exactly flush with the final position of the arc-shaped marking block 9. Once the liquid reaches the number of milliliters filled, the special-shaped pressing block 5 will be limited and cannot be pushed further, so as to avoid the phenomenon of excessive liquid filling caused by poor control of the force by personnel, thereby improving the accuracy of the experimental results.

[0038] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A liquid filling device, comprising a filling cylinder (1), characterized in that: A filling port (2) is provided at one end of the filling cylinder (1), a filling head (3) is sleeved at one end of the filling port (2), a push rod (4) is embedded in the filling cylinder (1), one end of the push rod (4) is fixedly connected to a special-shaped pressure block (5), the other end of the push rod (4) is fixedly connected to a leather plug (6), the outer circumferential surface of the leather plug (6) is in close contact with the inner wall of the filling cylinder (1), the outer circumferential surface of the filling cylinder (1) is fixedly connected to an internal threaded connector (7), a threaded rod (8) passes through and is threadedly connected to the internal threaded connector (7), one end of the threaded rod (8) is rotatably connected to an arc-shaped marking block (9), and the other end of the threaded rod (8) is in contact with the special-shaped pressure block (5); The outer circumferential surface of the filling cylinder (1) is provided with a scale area (11).

2. A liquid filling device according to claim 1, characterized in that: One end of the threaded rod (8) is fixedly connected to a bearing (81), the outer circumferential surface of the bearing (81) is fixedly connected to a sleeve (82), and the arc-shaped marking block (9) is fixedly connected to the outer circumferential surface of the sleeve (82).

3. A liquid filling device according to claim 1, characterized in that: An anti-slip groove (83) is provided on the outer circumferential surface of one end of the threaded rod (8).

4. A liquid filling device according to claim 1, characterized in that: A pair of mutually symmetrical side wing pieces (12) are fixedly connected to the outer circumferential surface of the filling cylinder (1).

5. A liquid filling device according to claim 1, characterized in that: When one end of the threaded rod (8) contacts the special-shaped pressing block (5), one side of the arc-shaped marking block (9) is also flush with one side of the leather plug (6).

6. A liquid filling device according to claim 1, characterized in that: The scale area (11) corresponds to the arc-shaped marking block (9).

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