Vacuum liquid injection cavity mechanism

Abstract

The utility model relates to the technical field of battery liquid injection, in particular to a vacuum liquid injection cavity mechanism which comprises a liquid injection cavity body, the liquid injection cavity body comprises a liquid injection driving plate, a side plate is installed on a side plate of the liquid injection driving plate, the liquid injection driving plate is provided with a vacuumizing mechanism, and the liquid injection driving plate is provided with a liquid injection structure. The liquid injection structure comprises a liquid injection cup and a liquid inlet head communicated with the liquid injection cup, and a liquid injection needle is mounted at the bottom of the liquid injection cup; a waste liquid collecting assembly is arranged below the liquid injection cavity and comprises a collecting plate capable of being close to or away from the liquid injection needle, the collecting plate is provided with a collecting cup matched with the liquid injection needle, and the collecting cup is provided with a liquid discharging opening capable of discharging liquid in the collecting cup; during liquid injection, after the liquid injection cavity is matched with the jig, the vacuumizing mechanism vacuumizes the liquid injection cavity to reach the liquid injection air pressure standard, and the liquid injection quality is improved; and after liquid injection is completed, the liquid injection head needing to be cleaned can discharge the electrolyte in the liquid injection head into the collecting cup under the action of positive pressure when the collecting cup is lifted and gets close.

Description

Technical Field

[0001] The utility model relates to the technical field of battery liquid injection, in particular to a vacuum liquid injection chamber mechanism. Background Art

[0002] In the current field of soft-pack battery injection, the main method of soft-pack battery injection is to tear open the air bag and insert the injection needle to inject the battery body, so that the electrolyte penetrates into the battery cell. The existing injection mechanism is generally only suitable for a single-row battery layout, and multiple injection mechanisms are required to increase production. Multiple injection mechanisms take up a lot of space and require multiple drive devices, which is costly.

[0003] In this regard, the utility model with application number CN202322309651.6 discloses a novel liquid injection mechanism, including a frame, a bag opening assembly, a flaring assembly and a liquid injection assembly. The frame is provided with a lifting plate, a first mounting plate and a second mounting plate from top to bottom in sequence. The first mounting plate is provided with a plurality of parallel first cross bars and second cross bars. The flaring assembly includes a plurality of first flaring pieces and second flaring pieces respectively arranged on the first cross bar and the second cross bar and a flaring drive member controlling the relative movement of the first cross bar and the second cross bar. The flaring drive member is arranged on the first mounting plate. The liquid injection assembly includes a plurality of liquid injection needles arranged on the first mounting plate. The first flaring pieces and the second flaring pieces are grouped in pairs, and each group of the first flaring pieces and the second flaring pieces are respectively located on both sides of the liquid injection needle. The utility model adopts arrangement to perform battery liquid injection, occupies a small space and has a high output.

[0004] During the injection, the process needs to be carried out under vacuum conditions. The vacuum sealing performance of the existing injection chamber is relatively general, which will affect the injection quality. Utility Model Content

[0005] The utility model aims to provide a vacuum liquid injection chamber mechanism to address the deficiencies of the prior art.

[0006] To achieve the above purpose, the technical solution of the utility model is as follows:

[0007] The vacuum liquid injection chamber mechanism comprises a liquid injection chamber capable of longitudinal movement, the liquid injection chamber comprises a liquid injection driving plate, a plurality of side plates are installed on the side plates of the liquid injection driving plate, the plurality of side plates and the liquid injection driving plate are spliced ​​into the liquid injection chamber, the liquid injection driving plate is provided with a vacuum pumping mechanism, the vacuum pumping mechanism comprises a plurality of air suction ports arranged on the liquid injection driving plate, the liquid injection driving plate is provided with a liquid injection structure, the liquid injection structure comprises a liquid injection cup and a liquid inlet head connected to the liquid injection cup, a liquid injection needle is installed at the bottom of the liquid injection cup; a waste liquid collection assembly is provided below the liquid injection chamber, the waste liquid collection assembly comprises a collection plate capable of approaching or moving away from the liquid injection needle, the collection plate is provided with a collection cup cooperating with the liquid injection needle, the collection cup is provided with a discharge port capable of discharging the liquid in the collection cup.

[0008] Further: the liquid inlet head is formed with a first liquid injection cavity for liquid to pass through, the liquid injection cup is formed with a second liquid injection cavity for transferring liquid, the bottom of the first liquid injection cavity is connected with the second liquid injection cavity, the first liquid injection cavity is provided with a first plug that can move along the length direction of the first liquid injection cavity, the bottom of the second liquid injection cavity is formed with a liquid injection port, the second liquid injection cavity is provided with a second plug for controlling the liquid to flow out of the liquid injection port, and the second plug can be close to or away from the liquid injection port.

[0009] Further: the liquid inlet head is connected with a liquid inlet hole, and the liquid inlet hole is connected with the first liquid injection chamber; the top of the liquid inlet head is connected with a driving head, and the driving head is equipped with a first lifting driving component, and the first lifting driving component is connected with the first plug; the top of the first liquid injection chamber is equipped with a guide sleeve for guiding the top of the first plug, and a driving chamber is formed in the driving head. The first lifting driving component includes a first lifting head that moves in the length direction of the driving chamber, and the bottom of the first lifting head is connected to the first plug, and the first plug can move along the length direction of the first liquid injection chamber.

[0010] Furthermore: a sealing cover is installed on the top of the liquid injection cup, the sealing cover is formed with a liquid injection hole for inserting the liquid inlet head, and the liquid injection hole is installed with a sealing ring nested outside the liquid inlet head; the liquid injection cup is provided with a pneumatic system, the pneumatic system includes an air inlet pipe, and the air inlet pipe is connected to the second liquid injection chamber.

[0011] Further: the sealing cover is formed with a sealing hole for the top of the second plug to extend outward, and the sealing cover is equipped with a second lifting head that can move longitudinally, and the second lifting head is connected to the top of the second plug; a sealing rubber plug that can block the injection port is installed at the bottom of the second plug, and the injection port is equipped with the injection needle.

[0012] Furthermore: the injection cavity is also provided with an injection plate for installing the injection structure and an injection driving member for driving the injection plate to move longitudinally, the injection driving member includes a longitudinally moving driving plate, and the driving plate is respectively connected to multiple injection plates; the injection driving plate is formed with a through hole for the injection port to pass through, and a buffer sleeve in contact with the battery buffer is installed at the bottom of the through hole.

[0013] Furthermore: the liquid injection drive component also includes a fixed seat installed on the top of the liquid injection drive plate, a liquid injection lifting cylinder is arranged between the drive plate and the fixed seat, the cylinder body of the liquid injection lifting cylinder is installed on the drive plate, and the piston rod of the liquid injection lifting cylinder is connected to the fixed seat; the drive plate is equipped with a transverse bar extending outward, and a connecting roller is installed at the end of the transverse bar, and the liquid injection plate is formed with a connecting long groove for inserting the connecting roller.

[0014] Furthermore: a first lifting power component and a second lifting power component are arranged below the collecting plate, the second lifting power component is installed on the driving end of the first lifting power component, and the collecting plate is installed on the driving end of the second lifting power component; the first lifting power component includes a first bottom frame, the first bottom frame is installed with a first lifting cylinder, the top of the piston rod of the first lifting cylinder is installed with an intermediate plate, the second lifting power component includes a second lifting cylinder installed on the intermediate plate, and the top of the piston rod of the second lifting cylinder is connected to the collecting plate.

[0015] Furthermore: the injection drive plate is formed with a through hole for the injection needle to move longitudinally, a buffer sleeve for buffering contact with the collection cup is installed through the hole, and a part of the bottom of the buffer sleeve can be deformably embedded in the collection cup.

[0016] Furthermore: the injection chamber mechanism also includes a chamber lifting mechanism that drives the injection chamber to lift and lower the chamber, the chamber lifting mechanism includes a fixed top plate located above the injection drive plate, the fixed top plate is equipped with a main lifting cylinder, and the piston rod of the main lifting cylinder passes through the fixed top plate and is connected to the injection drive plate.

[0017] The beneficial effects of the utility model are as follows: during liquid injection, after the liquid injection cavity is matched with the fixture, the vacuum mechanism vacuumizes the liquid injection cavity to reach the air pressure standard of liquid injection, thereby improving the quality of liquid injection; the liquid is connected to the liquid inlet head, and is inserted into the battery through the liquid injection needle for liquid injection; after the liquid injection is completed, the liquid injection head that needs to be cleaned is raised and approached by the collection cup, and the electrolyte in the liquid injection head can be discharged into the collection cup under the action of positive pressure, and then the electrolyte in the collection cup can be discharged outwardly through the liquid discharge port, so that the excess electrolyte in the liquid injection head can be discharged, and when the next batch of batteries is injected, the electrolyte of the previous batch will not be mixed, thereby ensuring the quality of liquid injection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the vacuum liquid injection chamber mechanism.

[0019] Figure 2 Schematic diagram of the explosion structure of the vacuum liquid injection chamber mechanism.

[0020] Figure 3 It is a structural schematic diagram of the connection between multiple injection structures and injection driving components.

[0021] Figure 4 It is a structural schematic diagram of the liquid injection structure.

[0022] Figure 5 Schematic diagram of the explosion structure of the liquid injection structure.

[0023] Figure 6 It is a schematic diagram of the cross-sectional structure of the liquid injection structure.

[0024] Figure 7 This is a schematic diagram of the structure in which the waste liquid collection component is separated from the liquid injection drive plate.

[0025] Figure 8 It is a schematic diagram of the structure of the waste liquid collection component.

[0026] Fig. 9 Schematic diagram of the exploded structure of the waste liquid collection component.

[0027] Reference numerals include:

[0028] 100- injection cavity,

[0029] 101- chamber lifting mechanism, 102- side plate, 103- main lifting cylinder, 104- air extraction port, 105- fixed top plate,

[0030] 1- Liquid injection structure,

[0031] 10-liquid inlet head, 11-first liquid injection cavity, 12-first plug, 13-liquid inlet hole, 14-driving head,

[0032] 15-first lifting drive member, 16-guide sleeve, 17-driving chamber, 18-first lifting head,

[0033] 2-Injection cup,

[0034] 21-second liquid injection chamber, 22-sealing cover, 23-liquid injection hole, 24-sealing ring, 25-intake pipe,

[0035] 26-sealing hole, 27-second lifting head, 28-second plugging head, 29-liquid injection port,

[0036] 3-Liquid injection drive parts,

[0037] 31-driving plate, 32-fixing seat, 33-liquid injection lifting cylinder, 34-liquid injection driving plate, 35-through hole,

[0038] 36-buffer sleeve, 37-transverse bar, 38-connecting roller, 39-connecting long groove,

[0039] 4-Injection plate,

[0040] 41-longitudinal guide rail, 42-longitudinal sliding seat, 43-annular sleeve, 44-driving bracket, 45-lifting cylinder,

[0041] 46-sealing rubber plug, 47-injection needle.

[0042] 5-Waste liquid collection component,

[0043] 51-collection plate, 52-collection cup, 53-collection hole, 54-liquid discharge port, 55-liquid extraction tube,

[0044] 6-First lifting power part,

[0045] 60-second lifting power member, 61-first bottom frame, 62-first lifting cylinder, 63-middle plate,

[0046] 64-second lifting cylinder, 65-first guide rod, 66-first guide sleeve, 67-second guide rod, 68-second guide sleeve, 69-through slot, DETAILED DESCRIPTION

[0047] The utility model is described in detail below with reference to the accompanying drawings.

[0048] like Figure 1-9 As shown, the vacuum liquid injection chamber mechanism includes a liquid injection chamber 100 that can move longitudinally, and the liquid injection chamber 100 includes a liquid injection driving plate 34. The side plate 102 of the liquid injection driving plate 34 is installed with multiple side plates 102. The multiple side plates 102 and the liquid injection driving plate 34 are spliced ​​into the liquid injection chamber 100, which can improve its sealing performance. The liquid injection driving plate 34 is provided with a vacuum pumping mechanism, and the vacuum pumping mechanism includes multiple air suction ports 104 arranged on the liquid injection driving plate 34; during liquid injection, after the liquid injection chamber 100 is matched with the fixture, the vacuum pumping mechanism vacuums the liquid injection chamber 100 to reach the air pressure standard of liquid injection, thereby improving the quality of liquid injection.

[0049] Preferably, the number of the side panels 102 is four, and the four side panels 102 are vertically spliced ​​to form a square structure and connected to the injection driving plate 34 .

[0050] The injection chamber mechanism also includes a chamber lifting mechanism 101 for driving the injection chamber 100 to move up and down. The chamber lifting mechanism 101 includes a fixed top plate 105 located above the injection drive plate 34. The fixed top plate 105 is equipped with a main lifting cylinder 103. The piston rod of the main lifting cylinder 103 passes through the fixed top plate 105 and is connected to the injection drive plate 34. When injection is required, the active lifting cylinder drives the injection chamber 100 to descend, so that the height of the injection chamber 100 changes, and it can be lowered close to the injection fixture where the battery is positioned. After the injection is completed, the active lifting cylinder drives the injection chamber 100 to rise.

[0051] The injection driving plate 34 is provided with an injection structure 1, which includes an injection cup 2 and a liquid inlet head 10 connected to the injection cup 2, and an injection needle 47 is installed at the bottom of the injection cup 2.

[0052] Specifically, the liquid inlet head 10 is formed with a first liquid injection cavity 11 for liquid to pass through, and the liquid injection cup 2 is formed with a second liquid injection cavity 21 for transferring the liquid of the liquid inlet head 10. The bottom of the first liquid injection cavity 11 is connected with the second liquid injection cavity 21. The first liquid injection cavity 11 is provided with a first plug 12 that can move along the length direction of the first liquid injection cavity 11. The bottom of the second liquid injection cavity 21 is formed with a liquid injection port 29. The second liquid injection cavity 21 is provided with a second plug 28 for controlling the discharge of liquid from the liquid injection port 29. The second plug 28 can be close to or away from the liquid injection port 29.

[0053] It should be noted that the liquid is an electrolyte.

[0054] The liquid is connected to the liquid inlet head 10, and the liquid can enter the first liquid filling chamber 11. When the first plug 12 of the first liquid filling chamber 11 is away from the end of the first liquid filling chamber 11, the liquid can enter the second liquid filling chamber 21 of the liquid filling cup 2. After the liquid filling port 29 is inserted into the battery pack, the second plug 28 is away from the liquid filling port 29, and positive pressure is applied to the second liquid filling chamber 21. The liquid in the second liquid filling chamber 21 can enter the battery pack for injection to prevent liquid leakage. When not injected, the liquid will not leak.

[0055] Furthermore, the liquid inlet head 10 is connected to a liquid inlet hole 13, which is connected to the first liquid injection chamber 11; a driving head 14 is connected to the top of the liquid inlet head 10, and the driving head 14 is equipped with a first lifting driving member 15, which is connected to the first plug 12. Driven by the first lifting driving member 15, the first plug 12 can move longitudinally and move along the length direction of the first liquid injection chamber 11. Since the liquid inlet hole 13 is connected to the liquid inlet head 10, when the first plug 12 moves downward to the end, the first plug 12 will block the first liquid injection chamber 11, and the liquid will not enter the second liquid injection chamber 21, thereby preventing the liquid in the liquid injection cup 2 from overflowing.

[0056] A guide sleeve 16 is installed at the top of the first liquid injection chamber 11 for guiding the top of the first plug 12 to pass through. A driving chamber 17 is formed in the driving head 14. The first lifting drive member 15 includes a first lifting head 18 that moves in the length direction of the driving chamber 17. The bottom of the first lifting head 18 is connected to the first plug 12. The first plug 12 can move along the length direction of the first liquid injection chamber 11; the first lifting head 18 moves up and down in the driving chamber 17 of the driving head 14, thereby driving the first plug 12 to move up and down. The guide sleeve 16 can ensure the movement stability of the first plug 12 and the sealing during sealing without displacement.

[0057] Preferably, the driving head 14 is installed with a lifting cylinder 45 , and the first lifting head 18 can move up and down under the drive of the lifting cylinder 45 .

[0058] A sealing cover 22 is installed on the top of the liquid filling cup 2. The sealing cover 22 is formed with a liquid filling hole 23 for the liquid inlet head 10 to be inserted. The liquid filling hole 23 is installed with a sealing ring 24 nested outside the liquid inlet head 10; the liquid inlet head 10 is inserted into the second liquid filling cavity 21 in the liquid filling cup 2 through the liquid filling hole 23 for transfer. The use of the sealing ring 24 can further improve the sealing of the liquid filling cup 2 to prevent leakage.

[0059] The liquid injection cup 2 is provided with a pneumatic system, which includes an air inlet pipe 25, which is connected to the second liquid injection chamber 21; the second liquid injection chamber 21 is in a sealed state, and when the pneumatic system is not blowing air, the liquid in the second liquid injection chamber 21 will not drip from the liquid injection port 29, and liquid leakage will not occur, thereby effectively protecting the equipment; when the second plug 28 is away from the liquid injection port 29, the pneumatic system introduces gas into the second liquid injection chamber 21 through the air inlet pipe 25, and at this time, the second liquid injection chamber 21 is in a positive pressure state, and the liquid in the second liquid injection chamber 21 will be sprayed out from the liquid injection port 29, thereby realizing the liquid injection process.

[0060] Furthermore, the sealing cover 22 is formed with a sealing hole 26 for the top of the second plug 28 to extend outward, and the sealing cover 22 is installed with a second lifting head 27 that can move longitudinally. The second lifting head 27 is connected to the top of the second plug 28. The second lifting head 27 moves longitudinally, so that the second plug 28 can move up and down at the same time, away from or close to the injection port 29. When the second plug 28 is away from the injection port 29, the liquid in the injection cup 2 can be discharged and injected, thereby ensuring the stability of the injection.

[0061] Preferably, a driving bracket 44 is installed on the top of the sealing cover 22, and a longitudinal lifting cylinder 45 is installed on the driving bracket 44. The driving end of the longitudinal lifting cylinder 45 is connected to the second lifting head 27. Under the drive of the longitudinal lifting cylinder 45, the second lifting head 27 can move up and down.

[0062] Furthermore, a sealing rubber plug 46 capable of blocking the injection port 29 is installed at the bottom of the second plug 28. When the second plug 28 is sealed, the sealing rubber plug 46 will contact the annular wall cavity in the injection port 29 to prevent liquid leakage, thereby improving the sealing performance during sealing. The injection port 29 is installed with an injection needle 47; during injection, the injection needle 47 is inserted into the battery pack. When the second plug 28 is away from the injection port 29, the liquid in the injection cup 2 can be discharged and injected into the battery pack through the injection needle 47.

[0063] The vacuum injection chamber mechanism also includes an injection driving member 3 that drives the injection plate 4 to move longitudinally. The injection driving member 3 includes a driving plate 31 that moves longitudinally. The driving plate 31 is respectively connected to multiple injection plates 4. During injection, the injection driving member 3 drives the driving plate 31 to move longitudinally, so that the injection structure 1 installed on the injection plate 4 can be close to the injection fixture, so that the injection port 29 can be inserted into the battery pack. Multiple injection ports 29 can inject liquid into multiple battery packs at the same time, and the injection efficiency is greatly improved.

[0064] Furthermore, a sealed cavity is formed at the bottom of the injection driving plate 34, and a sealing structure is formed at the bottom of the injection driving plate 34. A buffer sleeve 36 is installed at the bottom of the through hole 35, which is in buffer contact with the battery bag; the injection driving plate 34 is formed with a through hole 35 for the injection port 29 to pass through; during injection, the cavity formed at the bottom of the injection driving plate 34 is evacuated, and the injection needle 47 installed at the injection port 29 can pass through the through hole 35; when the through hole 35 at the bottom of the injection driving plate 34 is in contact with the battery pack, the buffer sleeve 36 has soft contact, so that the injection port 29 is sealed when in contact with the battery pack, thereby reducing the probability of leakage.

[0065] Preferably, the buffer sleeve 36 is formed from silicone material.

[0066] Furthermore, the injection drive member 3 also includes a fixed seat 32 installed on the top of the injection drive plate 34, and a lifting cylinder 45 injection lifting cylinder 4533 is arranged between the drive plate 31 and the fixed seat 32, the cylinder body of the lifting cylinder 45 injection lifting cylinder 4533 is installed on the drive plate 31, and the piston rod of the lifting cylinder 45 injection lifting cylinder 4533 is connected to the fixed seat 32; the drive plate 31 is installed with a transverse bar 37 extending outward, and a connecting roller 38 is installed at the end of the transverse bar 37, and the injection plate 4 is formed with a connecting long groove 39 for inserting the connecting roller 38, and the drive plate 31 is connected to the connecting long groove 39 of the injection plate 4 through the connecting roller 38 of the transverse bar 37. When the lifting cylinder 45 injection lifting cylinder 4533 performs a lifting movement, the injection plate 4 can move longitudinally, so that the injection needle 47 installed on the injection port 29 will pass through the through hole 35 and cooperate with the battery pack.

[0067] Preferably, the fixing seat 32 is longitudinally arranged with a longitudinal guide rail 41 , the longitudinal guide rail 41 is slidably mounted with a longitudinal sliding seat 42 , the injection plate 4 is connected to the longitudinal sliding seat 42 , and when the injection plate 4 moves longitudinally, it can be guided and moved along the longitudinal guide rail 41 .

[0068] Preferably, the liquid injection plate 4 is provided with an annular sleeve 43 which is nested in the liquid injection cup 2 , and the annular sleeve 43 fixes the liquid injection cup 2 .

[0069] A waste liquid collection assembly 5 is provided below the injection cavity 100. The waste liquid collection assembly 5 includes a collection plate 51 that can be close to or away from the injection needle 47. The collection plate 51 is installed with a collection cup 52 that cooperates with the injection needle 47. The collection cup 52 is provided with a drainage port 54 that can drain the liquid in the collection cup 52. When the injection needle 47 that needs to be cleaned is approached by the collection cup 52, the electrolyte in the injection needle 47 can be discharged into the collection cup 52 under the action of positive pressure, and then the electrolyte in the collection cup 52 can be discharged outward through the drainage port 54, so that the excess electrolyte in the injection needle 47 can be discharged. When the next batch of batteries is injected, the electrolyte of the previous batch will not be mixed, thereby ensuring the quality of injection.

[0070] Preferably, there are multiple collecting cups 52, and the collecting plate 51 is provided with multiple collecting holes 53 for installing the collecting plate 51. The collecting cups 52 are installed on the collecting plate 51 through the collecting holes 53. Arranging multiple collecting cups 52 can clean and drain multiple injection needles 47 at the same time, and the efficiency is further improved.

[0071] Furthermore, the collecting cup 52 is provided with a liquid extraction tube 55, which is connected to the liquid discharge port 54. The liquid extraction tube 55 is connected to the pump body or the single-acting air pipe. Under the action of the pump body and the air pipe, the electrolyte in the collecting cup 52 can be extracted and discharged, and will not remain in the collecting cup 52 all the time. When there is a lot of electrolyte, overflow will not occur.

[0072] Furthermore, the collecting cup 52 has a truncated cone-shaped cup-shaped structure, and the outer diameter of the collecting cup 52 gradually decreases from top to bottom. The collecting cup 52 with a cup-shaped structure facilitates the top opening to cooperate with the injection needle 47, so that most of the injection needle 47 can be surrounded by the collecting cup 52, and the liquid discharged by the injection needle 47 can enter the collecting cup 52 in a sealed manner.

[0073] A first lifting power member 6 and a second lifting power member 60 are arranged below the collecting plate 51. The second lifting power member 60 is installed at the driving end of the first lifting power member 6, and the collecting plate 51 is installed at the driving end of the second lifting power member 60. A two-stage lifting is adopted, so that the lifting height of the collecting cup 52 installed on the collecting plate 51 is greater, preventing the occurrence of support instability under single action. After the collecting plate 51 is lowered away from the injection needle 47, the collecting plate 51 will not affect it when the injection needle 47 injects liquid into the battery clamp.

[0074] Specifically, the first lifting power component 6 includes a first bottom frame 61, on which a first lifting cylinder 62 is installed, and an intermediate plate 63 is installed on the top of the piston rod of the first lifting cylinder 62. The second lifting power component 60 includes a second lifting cylinder 64 installed on the intermediate plate 63, and the top of the piston rod of the second lifting cylinder 64 is connected to the collecting plate 51; when it is necessary to clean the collected liquid, the first lifting cylinder 62 installed on the first bottom frame 61 drives the intermediate plate 63 to rise, and then the second lifting cylinder 64 installed on the intermediate plate 63 rises, so that the collecting plate 51 rises, and the rising height enables the collecting cup 52 to cooperate with the injection needle 47, and the injection needle 47 can be embedded in the collecting cup 52 to collect and discharge the electrolyte.

[0075] Preferably, the second lifting cylinder 64 is installed at the bottom of the middle plate 63, and the middle plate 63 is provided with a through groove 59 for the piston rod to pass through. When the second section of the collecting plate 51 is raised, the piston rod of the second lifting cylinder 64 is pushed out, passes through the through groove 59, and drives the collecting plate 51 to rise.

[0076] A first guide rod 65 is installed at the bottom of the middle plate 63, a first guide sleeve 66 is installed at the bottom frame for guiding the first guide rod 65 to slide, a second guide rod 67 is installed at the bottom of the collecting plate 51, and a second guide sleeve 68 is installed at the middle plate 63 for guiding the second guide rod 67 to slide; the first guide sleeve 66 is used to allow the first guide rod 65 to slide longitudinally to ensure that the middle plate 63 can be lifted and lowered vertically; similarly, the second guide sleeve 68 is used to allow the second guide rod 67 to slide longitudinally to ensure that the collecting plate 51 can be lifted and lowered vertically, so that the collecting cup 52 and the injection needle 47 remain vertically coaxially aligned, and no displacement occurs during lifting and lowering.

[0077] In summary, it can be seen that the utility model has the above-mentioned excellent characteristics, which can enhance the performance unprecedented in the prior art and become a product with great practical value.

[0078] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. A vacuum liquid injection chamber mechanism, comprising a liquid injection chamber capable of longitudinal movement, characterized in that: The liquid injection cavity comprises a liquid injection driving plate, a plurality of side plates are installed on the side plate of the liquid injection driving plate, the plurality of side plates and the liquid injection driving plate are spliced ​​into the liquid injection cavity, the liquid injection driving plate is provided with a vacuum pumping mechanism, the vacuum pumping mechanism comprises a plurality of air extraction ports arranged on the liquid injection driving plate, the liquid injection driving plate is provided with a liquid injection structure, the liquid injection structure comprises a liquid injection cup and a liquid inlet head connected to the liquid injection cup, and a liquid injection needle is installed at the bottom of the liquid injection cup; A waste liquid collection assembly is arranged below the injection cavity, and the waste liquid collection assembly includes a collection plate that can be close to or away from the injection needle. The collection plate is installed with a collection cup that cooperates with the injection needle. The collection cup is provided with a discharge port that can drain the liquid in the collection cup.

2. The vacuum liquid injection chamber mechanism according to claim 1, characterized in that: The liquid inlet head is formed with a first liquid injection cavity for liquid to pass through, the liquid injection cup is formed with a second liquid injection cavity for transferring liquid, the bottom of the first liquid injection cavity is connected with the second liquid injection cavity, the first liquid injection cavity is provided with a first plug that can move along the length direction of the first liquid injection cavity, the bottom of the second liquid injection cavity is formed with a liquid injection port, the second liquid injection cavity is provided with a second plug for controlling the liquid to flow out of the liquid injection port, and the second plug can be close to or away from the liquid injection port.

3. The vacuum liquid injection chamber mechanism according to claim 2, characterized in that: The liquid inlet head is connected with a liquid inlet hole, which is communicated with the first liquid injection chamber; the top of the liquid inlet head is connected with a driving head, and the driving head is equipped with a first lifting driving component, and the first lifting driving component is connected with the first plug; the top of the first liquid injection chamber is equipped with a guide sleeve for guiding the top of the first plug, and a driving chamber is formed in the driving head. The first lifting driving component includes a first lifting head that moves in the length direction of the driving chamber, and the bottom of the first lifting head is connected to the first plug, and the first plug can move along the length direction of the first liquid injection chamber.

4. The vacuum liquid injection chamber mechanism according to claim 3, characterized in that: A sealing cover is installed on the top of the liquid injection cup, and the sealing cover is formed with a liquid injection hole for inserting the liquid inlet head. The liquid injection hole is installed with a sealing ring nested outside the liquid inlet head; the liquid injection cup is provided with a pneumatic system, and the pneumatic system includes an air inlet pipe, which is connected to the second liquid injection cavity.

5. The vacuum liquid injection chamber mechanism according to claim 4, characterized in that: The sealing cover is formed with a sealing hole for the top of the second plug to extend outward, and the sealing cover is equipped with a second lifting head that can move longitudinally, and the second lifting head is connected to the top of the second plug; a sealing rubber plug that can block the injection port is installed at the bottom of the second plug, and the injection port is equipped with the injection needle.

6. The vacuum liquid injection chamber mechanism according to claim 1, characterized in that: The injection cavity is also provided with an injection plate for installing the injection structure and an injection driving member for driving the injection plate to move longitudinally. The injection driving member includes a longitudinally moving driving plate, and the driving plate is respectively connected to multiple injection plates; the injection driving plate is formed with a through hole for the injection port to pass through, and a buffer sleeve in contact with the battery buffer is installed at the bottom of the through hole.

7. The vacuum liquid injection chamber mechanism according to claim 6, characterized in that: The liquid injection drive component also includes a fixed seat installed on the top of the liquid injection drive plate, a liquid injection lifting cylinder is arranged between the drive plate and the fixed seat, the cylinder body of the liquid injection lifting cylinder is installed on the drive plate, and the piston rod of the liquid injection lifting cylinder is connected to the fixed seat; the drive plate is equipped with a transverse bar extending outward, and a connecting roller is installed at the end of the transverse bar, and the liquid injection plate is formed with a connecting long groove for inserting the connecting roller.

8. The vacuum liquid injection chamber mechanism according to claim 1, characterized in that: A first lifting power member and a second lifting power member are arranged below the collecting plate, the second lifting power member is installed on the driving end of the first lifting power member, and the collecting plate is installed on the driving end of the second lifting power member; the first lifting power member includes a first bottom frame, the first bottom frame is installed with a first lifting cylinder, the top of the piston rod of the first lifting cylinder is installed with an intermediate plate, the second lifting power member includes a second lifting cylinder installed on the intermediate plate, and the top of the piston rod of the second lifting cylinder is connected to the collecting plate.

9. The vacuum liquid injection chamber mechanism according to claim 1, characterized in that: The injection drive plate is formed with a through hole for the injection needle to move longitudinally, and a buffer sleeve for buffering contact with the collection cup is installed through the hole, and a part of the bottom of the buffer sleeve can be deformably embedded in the collection cup.

10. The vacuum liquid injection chamber mechanism according to claim 1, characterized in that: The injection chamber mechanism also includes a chamber lifting mechanism that drives the injection chamber to lift and lower the chamber. The chamber lifting mechanism includes a fixed top plate located above the injection drive plate. The fixed top plate is equipped with a main lifting cylinder. The piston rod of the main lifting cylinder passes through the fixed top plate and is connected to the injection drive plate.

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