Electrolyte sampling device for lithium battery production

Abstract

The utility model discloses an electrolyte sampling device for lithium battery production, which comprises a mounting rack, a sampling needle is fixedly arranged in the mounting rack, a positioning plate is slidably arranged on the surface of the sampling needle, a connecting block and an adjusting rack are fixedly arranged at the top of the positioning plate, a fixing plate is fixedly arranged at the top of the mounting rack, and a clamping plate is fixedly arranged at the top of the fixing plate. A supporting shaft is rotatably arranged in the fixing plate, an adjusting gear is fixedly arranged on the surface of the supporting shaft and is in meshed connection with the adjusting rack, a cavity is formed in the sampling needle, a piston block is movably arranged in the sampling needle, and a connecting rod is fixedly arranged at the top of the piston block; a connecting frame is fixedly arranged on the surface of the connecting rod, a moving plate is fixedly arranged in the connecting frame, the device can preset the sampling amount, the electrolyte can be accurately sucked, excessive suction is effectively avoided, the suction precision is improved, and waste caused by excessive suction of the electrolyte is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery production technical field especially relates to a lithium battery production is with electrolyte sampling device. BACKGROUND

[0002] Lithium battery is a kind of with lithium metal or lithium alloy as negative electrode material, using non-aqueous electrolyte solution battery. It has high energy density, long life, low self-discharge rate and other significant advantages, is widely used in mobile phone, notebook computer, electric vehicle and many other fields. Its working principle is based on the embedding and de-embedding process of lithium ion between positive and negative, thereby realizing the storage and release of electric energy.

[0003] Lithium battery production is with electrolyte sampling device is specially used for collecting lithium battery electrolyte sample equipment. It is required to take out the appropriate sample from electrolyte storage container by sampling needle, to meet the various research and monitoring needs in electrolyte composition analysis, quality detection and other production links.

[0004] When sampling the electrolyte which is crucial for lithium battery production, the device cannot set the sampling amount in advance, which leads to that the staff can only rely on their own experience and subjective judgment to draw electrolyte in the actual operation process. Due to the lack of accurate quantitative standard, it is easy to exceed the actual demand of the amount of drawing, and further cause unnecessary loss and waste of electrolyte. UTILITY MODEL CONTENT

[0005] In view of the deficiencies of prior art, the utility model provides a lithium battery production is with electrolyte sampling device for solving the problems proposed in the above background art.

[0006] In order to realize the above purpose, the utility model adopts the following technical scheme:

[0007] A kind of lithium battery production is with electrolyte sampling device, including mounting bracket, the inside fixed setting of the mounting bracket is with sampling needle, the surface of the sampling needle is slidably provided with positioning plate, the top of the positioning plate is fixedly provided with connecting block and adjusting rack, the connecting block and the adjusting rack are slidably connected with mounting bracket, the top of the mounting bracket is fixedly provided with fixed plate, the inside rotation of the fixed plate is provided with support shaft, the surface of the support shaft is fixedly provided with adjusting gear, the adjusting gear and adjusting rack are engaged connection, the top of the mounting bracket is provided with locking assembly, the inside of the sampling needle is provided with cavity, the inside of the sampling needle is movably provided with piston block, the top of the piston block is fixedly provided with connecting rod, the surface of the connecting rod is fixedly provided with connecting frame, the inside of the connecting frame is fixedly provided with moving plate.

[0008] Preferably, the locking assembly comprises a mounting plate fixedly arranged at the top of the mounting frame, a guide shaft is slidingly arranged in the mounting plate, an elastic member is arranged on the surface of the guide shaft, a locking rack is fixedly arranged at the end of the guide shaft close to the adjusting gear, the locking rack is in meshing connection with the adjusting gear, and a pull plate is fixedly arranged at the rear side of the locking rack.

[0009] Preferably, a pull rod is fixedly arranged at the top of the connecting rod, and an auxiliary plate is fixedly arranged at the top of the pull rod.

[0010] Preferably, a scale is fixedly arranged at the front side of the sampling needle, and scale numbers are marked on the surface of the scale.

[0011] Preferably, the elastic member is a spring, one end of the elastic member is fixedly connected with the mounting plate, and the other end of the elastic member is fixedly connected with the locking rack.

[0012] Preferably, the number of the elastic members is two, and the two elastic members are symmetrically distributed.

[0013] Preferably, the material of the connecting frame is transparent glass, and the materials of the moving plate and the positioning plate are both weak magnetic blocks.

[0014] Compared with the prior art, the lithium battery production electrolyte sampling device has the beneficial effects that: the adjusting rack is moved up and down by rotating the adjusting gear, the positioning plate is moved by the adjusting rack, the bottom of the positioning plate is moved to the scale number corresponding to the scale according to the required amount, then the needle of the sampling needle is inserted into the electrolyte container, the connecting rod is moved to drive the piston block to move upward in the cavity to draw the electrolyte into the cavity, meanwhile, the connecting rod drives the moving plate to move through the connecting frame, when the moving plate and the positioning plate contact, the pulling is stopped, the device can preset the sampling amount, can accurately draw the electrolyte, effectively avoids drawing too much, improves the drawing precision, and reduces the waste caused by excessive drawing of the electrolyte. BRIEF DESCRIPTION OF DRAWINGS

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

[0016] Figure 2 It is a structure of the utility model;

[0017] Figure 3 It is a structure of the utility model;

[0018] Figure 4 It is Figure 2 the structure of A of the utility model is enlarged.

[0019] In the diagram: 1. Mounting bracket; 2. Sampling needle; 3. Cavity; 4. Piston block; 5. Connecting rod; 6. Pull rod; 7. Positioning plate; 8. Connecting block; 9. Adjusting rack; 10. Fixing plate; 11. Support shaft; 12. Adjusting gear; 13. Mounting plate; 14. Guide shaft; 15. Elastic element; 16. Locking rack; 17. Pull plate; 18. Scale; 19. Connecting bracket; 20. Moving plate; 21. Auxiliary plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Reference Figures 1-4An electrolyte sampling device for lithium battery production includes a mounting frame 1. A sampling needle 2 is fixedly disposed inside the mounting frame 1. A positioning plate 7 is slidably disposed on the surface of the sampling needle 2. A connecting block 8 and an adjusting rack 9 are fixedly disposed on the top of the positioning plate 7. Both the connecting block 8 and the adjusting rack 9 are slidably connected to the mounting frame 1. A fixing plate 10 is fixedly disposed on the top of the mounting frame 1. A support shaft 11 is rotatably disposed inside the fixing plate 10. An adjusting gear 12 is fixedly disposed on the surface of the support shaft 11. The adjusting gear 12 and the adjusting rack 9 are meshed together. The top of the mounting frame 1 is equipped with a locking assembly. The sampling needle 2 has an internal cavity 3, and a piston block 4 is movably mounted inside the sampling needle 2. A connecting rod 5 is fixedly mounted on the top of the piston block 4, and a connecting frame 19 is fixedly mounted on the surface of the connecting rod 5. A movable plate 20 is fixedly mounted inside the connecting frame 19, and a pull rod 6 is fixedly mounted on the top of the connecting rod 5. An auxiliary plate 21 is fixedly mounted on the top of the pull rod 6. The auxiliary plate 21 and pull rod 6 facilitate pulling the connecting rod 5. The connecting frame 19 is made of transparent glass, while the movable plate 20 and positioning plate 7 are made of weakly magnetic blocks. The transparent connecting frame 19 allows for easy viewing of the internal scale 18. The movable plate 20 and positioning plate 7, made of weakly magnetic blocks, can easily separate after contact. The magnetic attraction of the magnetic blocks provides feedback, notifying the operator that contact has been completed, thus indicating that sampling is complete. This electrolyte sampling device for lithium battery production uses an adjusting gear 12 to move the adjusting rack 9 up and down, which in turn moves the positioning plate 7. The positioning plate 7 is adjusted according to the required amount. The bottom of the device is moved to the scale number corresponding to scale 18. Then, the tip of the sampling needle 2 is inserted into the electrolyte container. The connecting rod 5 is moved to drive the piston block 4 to move upward inside the cavity 3 to draw the electrolyte into the cavity 3. At the same time, the connecting rod 5 drives the moving plate 20 to move together through the connecting frame 19. When the moving plate 20 contacts the positioning plate 7, the pulling stops. This device can preset the sampling amount and can accurately draw the electrolyte, effectively avoiding drawing too much, improving the sampling accuracy, and reducing the waste of electrolyte caused by excessive drawing.

[0022] Specifically, the locking assembly includes a mounting plate 13 fixedly mounted on the top of the mounting bracket 1. A guide shaft 14 is slidably mounted inside the mounting plate 13. An elastic element 15, which is a spring, is overlapped on the surface of the guide shaft 14. One end of the elastic element 15 is fixedly connected to the mounting plate 13, and the other end is fixedly connected to a locking rack 16. There are two elastic elements 15, which are symmetrically distributed. A locking rack 16 is fixedly mounted on the end of the guide shaft 14 near the adjusting gear 12. The locking rack 16 meshes with the adjusting gear 12. A locking rack 16 is fixedly mounted on the rear side of the locking rack 16. With a pull plate 17 in place, first pull the pull plate 17 to move it to the right, causing the locking rack 16 to move. The locking rack 16 moves away from the adjusting gear 12 and compresses the elastic element 15. Then rotate the support shaft 11, causing the adjusting gear 12 to rotate. The rotation of the adjusting gear 12 causes the adjusting rack 9 to move up and down. The movement of the adjusting rack 9 causes the positioning plate 7 and the connecting block 8 to move together. After the adjustment is completed, release the pull plate 17. Under the rebound of the elastic element 15, the locking rack 16 moves and engages with the adjusting gear 12, preventing the user from pulling too hard and causing the moving plate 20 to contact the positioning plate 7, which would lead to excessive suction.

[0023] Specifically, a scale 18 is fixedly provided on the front side of the sampling needle 2. The scale 18 is marked with the number of graduations. The number on the scale 18 makes it easy to know how much electrolyte can be drawn from the position of the positioning plate 7.

[0024] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.

[0025] In use: First, pull the pull plate 17 to the right, causing the locking rack 16 to move. The locking rack 16 moves away from the adjusting gear 12 and compresses the elastic element 15. Then, rotate the support shaft 11, causing the adjusting gear 12 to rotate. The rotation of the adjusting gear 12 causes the adjusting rack 9 to move up and down. The movement of the adjusting rack 9 causes the positioning plate 7 and the connecting block 8 to move together. Move the bottom of the positioning plate 7 to the corresponding scale number on the scale 18 according to the required amount. Then, release the pull plate 17. Under the rebound of the elastic element 15, the locking rack 16 moves... The moving and adjusting gear 12 meshes to prevent the adjusting rack 9 and positioning plate 7 from moving. Then, the needle of the sampling needle 2 is inserted into the electrolyte container. The auxiliary plate 21 is pulled, and the connecting rod 5 is moved by the pull rod 6. The movement of the connecting rod 5 causes the piston block 4 to move inside the cavity 3. At the same time, the connecting rod 5 moves the moving plate 20 together through the connecting frame 19. The piston block 4 moves upward inside the cavity 3 to draw the electrolyte into the cavity 3. When the moving plate 20 contacts the positioning plate 7, the pulling is stopped, and the set amount of electrolyte can be drawn.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A kind of electrolyte sampling device for lithium battery production, including mounting bracket (1), it is characterized in that, The inside of the mounting frame (1) is fixedly provided with a sampling needle (2), the surface of the sampling needle (2) is slidably provided with a positioning plate (7), the top of the positioning plate (7) is fixedly provided with a connecting block (8) and an adjusting rack (9), the connecting block (8) and the adjusting rack (9) are both slidably connected with the mounting frame (1), the top of the mounting frame (1) is fixedly provided with a fixed plate (10), the inside of the fixed plate (10) is rotatably provided with a supporting shaft (11), the surface of the supporting shaft (11) is fixedly provided with an adjusting gear (12), the adjusting gear (12) is meshedly connected with the adjusting rack (9), the top of the mounting frame (1) is provided with a locking assembly, the inside of the sampling needle (2) is provided with a cavity (3), the inside of the sampling needle (2) is movably provided with a piston block (4), the top of the piston block (4) is fixedly provided with a connecting rod (5), the surface of the connecting rod (5) is fixedly provided with a connecting frame (19), the inside of the connecting frame (19) is fixedly provided with a moving plate (20).

2. The electrolyte sampling device for lithium battery production according to claim 1, characterized in that, The locking assembly comprises a mounting plate (13) fixedly arranged at the top of the mounting frame (1), the inside of the mounting plate (13) is slidably provided with a guide shaft (14), the surface of the guide shaft (14) is overlappedly provided with an elastic member (15), one end of the guide shaft (14) close to the adjusting gear (12) is fixedly provided with a locking rack (16), the locking rack (16) is meshedly connected with the adjusting gear (12), the rear side of the locking rack (16) is fixedly provided with a pull plate (17).

3. The electrolyte sampling device for lithium battery production according to claim 1, characterized in that, The top of the connecting rod (5) is fixedly provided with a pull rod (6), the top of the pull rod (6) is fixedly provided with an auxiliary plate (21).

4. The electrolyte sampling device for lithium battery production according to claim 1, characterized in that, The front side of the sampling needle (2) is fixedly provided with a scale (18), the surface of the scale (18) is marked with scale numbers.

5. The electrolyte sampling device for lithium battery production according to claim 2, characterized in that, The elastic member (15) is a spring, one end of the elastic member (15) is fixedly connected with the mounting plate (13), the other end of the elastic member (15) is fixedly connected with the locking rack (16).

6. The electrolyte sampling device for lithium battery production according to claim 2, characterized in that, The number of the elastic members (15) is two, and the two elastic members (15) are symmetrically distributed.

7. The electrolyte sampling device for lithium battery production according to claim 1, characterized in that, The material of the connecting frame (19) is transparent glass material, and the materials of the moving plate (20) and the positioning plate (7) are both magnetic blocks with weak magnetism.

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