CN220206946U - Spring compacting sealing helium injection mechanism - Google Patents
Spring compacting sealing helium injection mechanism Download PDFInfo
- Publication number
- CN220206946U CN220206946U CN202320894640.6U CN202320894640U CN220206946U CN 220206946 U CN220206946 U CN 220206946U CN 202320894640 U CN202320894640 U CN 202320894640U CN 220206946 U CN220206946 U CN 220206946U
- Authority
- CN
- China
- Prior art keywords
- helium
- helium injection
- spring
- cavity
- shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229910052734 helium Inorganic materials 0.000 title claims abstract description 161
- 239000001307 helium Substances 0.000 title claims abstract description 161
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 title claims abstract description 161
- 238000002347 injection Methods 0.000 title claims abstract description 108
- 239000007924 injection Substances 0.000 title claims abstract description 108
- 238000007789 sealing Methods 0.000 title claims abstract description 64
- 230000007246 mechanism Effects 0.000 title claims abstract description 38
- 230000006835 compression Effects 0.000 claims abstract description 34
- 238000007906 compression Methods 0.000 claims abstract description 34
- 238000010009 beating Methods 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 18
- 238000003825 pressing Methods 0.000 description 8
- 238000006073 displacement reaction Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007665 sagging Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 238000005056 compaction Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Secondary Cells (AREA)
Abstract
The utility model relates to a spring compacting sealing helium filling mechanism. The utility model relates to a spring compacting sealing helium filling mechanism, which comprises: the helium injection device comprises a cavity, a top cover plate and a helium injection shaft, wherein the top cover plate is connected to the top of the cavity through a fastener, the helium injection shaft is of a hollow structure, and the helium injection shaft vertically penetrates through the top cover plate and the cavity; the part of the helium injection shaft on the top cover plate is sleeved with an adjusting assembly, the adjusting assembly comprises an adjusting sealing cover, a fixed block and a spring, the bottom of the fixed block is fixedly connected with the top cover plate, the fixed block is provided with a through spring mounting cavity in the axial direction, the adjusting sealing cover is connected with the fixed block to form a sealing cover of the spring mounting cavity, and the adjusting sealing cover limits the height of the spring mounting cavity through axial adjustment; the adjusting sealing cover is provided with a through hole, the helium injecting shaft can slide through the spring mounting cavity and the through hole, and the spring is placed in the spring mounting cavity and sleeved on the helium injecting shaft. The spring compression sealing helium injection mechanism has the advantages of high applicability to different batteries and production cost saving.
Description
Technical Field
The utility model relates to battery helium filling equipment, in particular to a spring compression seal helium filling mechanism.
Background
In the battery production process, it is necessary to detect the sealability of the battery, and the sealability detection is performed by using a helium test method. The helium test method is to fill a certain amount of helium into the battery, then vacuumize the outside of the battery, and detect the leakage amount of the helium in the vacuum to judge the tightness of the top cover of the battery. The method has high detection accuracy and high efficiency.
The method comprises the steps of vacuumizing the inside of a battery and injecting helium into the battery before detection, wherein a sealed helium injection mechanism is adopted to connect a helium injection pipe, and then the battery is driven to abut against the helium injection mechanism for helium injection. However, in the production process, because different heights exist in different electric core models, the lengths of the helium injection mechanisms are different, and the compaction forces are also different, when helium is injected into different batteries, different helium injection mechanisms are needed, and the situations of poor applicability and high production cost exist.
Disclosure of Invention
Based on the above, the utility model aims to provide the spring compression seal helium injection mechanism, which can adapt to the heights of batteries of different models by arranging the adjusting sealing cover, can adjust the compression force of the spring pressing down, and has the advantages of high applicability to different batteries and production cost saving.
The utility model is realized by the following scheme:
the spring compression sealing helium injection mechanism comprises a cavity, a top cover plate and a helium injection shaft, wherein the top cover plate is connected to the top of the cavity through a fastener, the helium injection shaft is of a hollow structure, and the helium injection shaft vertically penetrates through the top cover plate and the cavity;
the part of the helium injection shaft on the top cover plate is sleeved with an adjusting assembly, the adjusting assembly comprises an adjusting sealing cover and a fixed block, the bottom of the fixed block is fixedly connected with the top cover plate, the fixed block is provided with a through spring mounting cavity in the axial direction, the adjusting sealing cover is connected with the fixed block to form a sealing cover of the spring mounting cavity, and the adjusting sealing cover limits the height of the spring mounting cavity through axial adjustment;
the adjusting sealing cover is provided with a through hole, the helium injecting shaft can pass through the spring mounting cavity and the through hole in a sliding mode, and the spring is placed in the spring mounting cavity and sleeved on the helium injecting shaft.
Further, an outer ring of the adjusting sealing cover is provided with an external thread, and an inner wall of the spring mounting cavity is provided with an internal thread matched with the external thread;
the fixed block surrounds the adjusting sealing cover, and the clamping part is used for clamping the adjusting sealing cover and is connected with the fixed block through a fastener.
Further, the adjusting assembly further comprises a clasping piece, wherein the clasping piece is sleeved on the helium injection shaft above the adjusting sealing cover and is locked on the helium injection shaft through a fastening piece.
Further, still include compression direction subassembly, compression direction subassembly includes spacing panel beating, annotate the helium axle and be equipped with first step in fixed block bottom surface position, spacing panel beating cover is established annotate on the helium axle and butt first step, the one end butt of spring the regulation closing cap, the other end butt spacing panel beating.
Further, the compression guide assembly further comprises a guide sleeve, one end of the guide sleeve is embedded into the surface of the top cover plate, the other end of the guide sleeve extends to the inside of the cavity, and the helium injection shaft can slide through the guide sleeve.
Further, the compression guide assembly further comprises a corrugated pipe, and the corrugated pipe is sleeved on the helium injection shaft in the cavity;
the two ends of the corrugated pipe are provided with a first fixing part and a second fixing part, the first fixing part is arranged in a fixing groove between the cavity and the top cover plate, the helium injection shaft is provided with a second step at the bottom surface of the cavity, and the second fixing part is clamped on the second step.
Further, a first sealing groove is formed in the connecting surface of the first fixing part of the cavity, and a second sealing groove is formed in the connecting surface of the second fixing part of the second step;
and sealing elements are arranged in the first sealing groove and the second sealing groove.
Further, the seal is an O-ring.
Further, a third sealing groove is formed in the bottom surface of the cavity, and a sealing ring is arranged in the third sealing groove.
Further, the top end of the helium injection shaft is connected with a threaded connecting pipe, and the bottom end of the helium injection shaft is connected with a helium injection nozzle.
The spring compression sealing helium injection mechanism has the following beneficial effects:
1. through setting up the fixed block that has spring installation cavity and the regulation closing cap of adjustable spring installation cavity height, the electric core according to different models sizes is when annotating helium required hold-down force adjusts the adjustment closing cap, reduce the high compression spring installation cavity's of adjustment closing cap height space and make the spring to annotate the high pressure of helium axle grow, or rise the high expansion spring installation cavity's of adjustment closing cap height space and make the spring to annotate the high pressure of helium axle diminish, need not to change again when changing the electric core and annotate helium mechanism, it has high to different battery suitability, saves manufacturing cost's advantage.
2. In order to avoid the adjustment sealing cover from being displaced under the impact of the top pressure of the spring, a holding part is arranged at the position of the fixing block around the adjustment sealing cover, the adjustment sealing cover is locked by a fastener after the adjustment sealing cover is adjusted, and the inaccurate pressing force caused by the displacement is avoided.
3. The helium injection shaft can droop under the action of gravity when not being abutted to the helium injection electric core, and the clamping piece is arranged, so that the lowest position of the helium injection shaft is limited, the phenomenon that the helium injection shaft droops to pull other parts is avoided, and the service life of the helium injection mechanism is prolonged.
For a better understanding and implementation, the present utility model is described in detail below with reference to the drawings.
Drawings
FIG. 1 is a perspective view of a spring loaded seal helium injection mechanism according to an embodiment of the present utility model;
FIG. 2 is an exploded view of a spring loaded seal helium injection mechanism according to an embodiment of the present utility model;
FIG. 3 is a cross-sectional view of a spring loaded seal helium injection mechanism according to an embodiment of the present utility model.
Reference numerals: a cavity 110, a first seal groove 110A, a third seal groove 110B, and a top cover plate 120;
helium injection shaft 200, first step 201, second step 202, second seal groove 202A, threaded connection pipe 210, helium injection nozzle 220;
an adjusting assembly 300, an adjusting nut 310, a fixed block 320, and a hugging nut 330;
compression guide assembly 400, compression spring 410, spacing panel beating 420, uide bushing 430, bellows 440, first fixed part 441, second fixed part 442, seal 450, sealing washer 460.
Detailed Description
The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
In order to solve the technical problems in the background art, the utility model provides a spring compression seal helium injection mechanism, which comprises a cavity 110, a top cover plate 120 and a helium injection shaft 200, as shown in fig. 1, wherein the top cover plate 120 is connected to the top of the cavity 110 through a fastener, the helium injection shaft 200 is of a hollow structure, and the helium injection shaft 200 vertically penetrates through the top cover plate 120 and the cavity 110. The cavity forms a connection with other parts of the helium injection device, one end of the helium injection shaft 200 is connected with helium, the other end is connected with a cell needing helium injection, and helium is injected into the cell through a hollow structure of the helium injection shaft 200.
As shown in fig. 1 to 3, an adjusting assembly is sleeved on a part of the helium injecting shaft 200 on the top cover plate 120, the adjusting assembly comprises an adjusting cover 310 and a fixed block 320, the bottom of the fixed block 320 is fixedly connected with the top cover plate 120, and the cavity 110, the top cover plate 120 and the fixed block 320 are connected. The fixed block 320 is provided with a through spring installation cavity in an axial direction, the adjustment cover 310 is connected with the fixed block 320 to form a cover of the spring installation cavity, and the adjustment cover 310 defines a height of the spring installation cavity through axial adjustment. The adjustment cap 310 is provided with a through hole through which the helium injection shaft 200 can slide, and a spring 410 placed in the spring mounting cavity and sleeved on the helium injection shaft 200.
According to the spring compression seal helium injecting mechanism of the embodiment, the helium injecting shaft 200 penetrates through the cavity 110 and extends out of the top cover plate 120, an adjusting component for adjusting compression force is sleeved on the helium injecting shaft 200 extending out of the top cover plate 120, specifically, a fixed block 320 penetrating through a spring mounting cavity is connected to the top cover plate 120, the spring mounting cavity is covered by an adjusting cover 310, the helium injecting shaft 200 penetrates through the spring mounting cavity and is sleeved with a spring 410, the height of the spring mounting cavity is limited by adjusting the height of the adjusting cover 310, the compression force of the spring 410 on the helium injecting shaft 200 is determined by the height space of the spring 410 in the spring mounting cavity, after the helium injecting shaft 200 abuts against a battery core, opposite acting forces are formed by upward compression force and compression force of the spring 410, and the compression force of the battery cores of different types are adjusted by adjusting the cover 310.
According to the spring compression seal helium injection mechanism, the fixing block 320 with the spring installation cavity and the adjustment sealing cover 310 capable of adjusting the height of the spring installation cavity are arranged, the adjustment sealing cover 310 is adjusted according to the compression force required by the battery cores with different types and sizes when helium is injected, the compression force of the spring 410 on the helium injection shaft 200 is increased by reducing the height space of the adjustment sealing cover 310 to compress the height space of the spring installation cavity, or the compression force of the spring 410 on the helium injection shaft 200 is reduced by increasing the height space of the adjustment sealing cover 310 to expand the height space of the spring installation cavity, and the helium injection mechanism does not need to be replaced again when the battery cores are replaced.
Preferably, as shown in fig. 1 to 3, the outer ring of the adjustment cover 310 is provided with external threads, and the inner wall of the spring installation cavity is provided with internal threads that mate with the external threads. By rotating the adjustment cover 310, the adjustment cover 310 is moved downward or upward in the spring installation cavity, thereby adjusting the height of the spring installation cavity and achieving the purpose of adjusting the pressing force of the spring 410. Further, the fixing block 320 is provided with a clasping portion around the adjustment cover 310, and the clasping portion clamps the connection between the adjustment cover 310 and the fixing block 320 through a fastener. In order to avoid displacement of the adjustment cover 310 under the impact of the pressing force of the spring 410, a clasping portion is disposed at a position of the fixing block 320 around the adjustment cover 310, and after the adjustment cover 310 is adjusted, the adjustment cover 310 is locked by a fastener, so that inaccurate pressing force caused by displacement is avoided.
Preferably, as shown in fig. 1 to 3, the adjusting assembly further includes a clasping member 330, and the clasping member 330 is sleeved on the helium injecting shaft 200 above the adjusting cover 310 and is locked to the helium injecting shaft 200 by a fastener. The helium injection shaft 200 can droop under the action of gravity when not abutted against the helium injection electric core, and the clamping piece 330 is arranged, so that the lowest position of the helium injection shaft 200 is limited, the sagging of the helium injection shaft 200 is prevented from dragging other parts, and the service life of the helium injection mechanism is prolonged.
Specifically, as shown in fig. 2 and 3, the device further comprises a compression guiding assembly, the compression guiding assembly comprises a limiting metal plate 420, a first step 201 is arranged on the helium injection shaft 200 at the bottom surface of the fixed block 320, the limiting metal plate 420 is sleeved on the helium injection shaft 200 and abuts against the first step 201, one end of the spring 410 abuts against the adjusting cover 310, and the other end abuts against the limiting metal plate 420. Through setting up spacing panel beating 420 and first step 201 formation cooperation, move upwards after annotating helium axle 200 butt and receiving the notes helium mouth of electric core, first step 201 promotes spacing panel beating 420 and upwards moves, and then compresses spring 410, makes spring 410 produce decurrent compressive force to annotating helium axle 200, makes annotate helium axle 200 and electric core formation zonulae occludens.
Preferably, the compression guide assembly further includes a guide sleeve 430, one end of the guide sleeve 430 is embedded in the surface of the top cover plate 120, the other end of the guide sleeve 430 extends into the interior of the cavity 110, and the helium injection shaft 200 is slidably inserted through the guide sleeve 430. By arranging the guide sleeve 430 to sleeve the helium injection shaft 200, the helium injection shaft 200 can accurately move along the direction of the guide sleeve 430, and the movement of the helium injection shaft 200 is prevented from being deviated.
Specifically, as shown in fig. 2 and 3, the compression guide assembly further includes a bellows 440, and the bellows 440 is sleeved on the helium injection shaft 200 in the cavity 110. The two ends of the bellows 440 are provided with a first fixing portion 441 and a second fixing portion 442, the first fixing portion 441 is disposed in a fixing groove between the cavity 110 and the top cover plate 120, the helium injecting shaft 200 is provided with a second step 202 at the bottom surface of the cavity 110, and the second fixing portion 442 is clamped on the second step 202. By providing the bellows 440, the first fixing portion 441 and the second fixing portion 442 are fixed to the cavity 110 and the helium injection shaft 200, respectively, after the helium injection shaft 200 abuts against the electric core 200, the bellows 440 is compressed along with movement of the helium injection shaft 200, and then a signal is sent to the helium injection device after a certain compression amount of the bellows 440 occurs, so that the helium injection device is controlled to inject helium into the electric core through the helium injection mechanism.
Preferably, as shown in fig. 3, the cavity 110 is provided with a first sealing groove 110A on the engagement surface of the first fixing portion 441, and the second step 202 is provided with a second sealing groove 202A on the engagement surface of the second fixing portion 442. A seal 450 is disposed within the first seal groove 110A and the second seal groove 202A. By providing the sealing member 450 at the junction of the first fixing portion 441 and the second fixing portion 442, the sealing degree between the cavity 110 and the outside is improved, and helium leakage is prevented.
Preferably, as shown in fig. 2 and 3, the seal 450 is an O-ring. The O-shaped ring is a rubber sealing ring with a circular cross section, is low in price and reliable in function, and can achieve good sealing degree when used as a sealing element.
Specifically, as shown in fig. 2 and 3, a third sealing groove 110B is provided on the bottom surface of the cavity 110, and a sealing ring 460 is provided in the third sealing groove 110B. The bottom surface of the cavity 110 is provided, when the battery cell moves upwards, the battery cell is abutted to the bottom surface of the cavity 110, the battery cell can be buffered through the sealing ring 460, the bottom surface of the cavity 110 is prevented from being damaged by direct impact, the tightness between the helium injection mechanism and the outside is enhanced, and helium leakage during helium injection is avoided.
Specifically, as shown in fig. 1 to 3, a threaded connection pipe 210 is connected to the top end of the helium injection shaft 200, and a helium injection nozzle 220 is connected to the bottom end of the helium injection shaft 200. The screw connection pipe 210 is arranged at the top of the helium injection shaft 200 and connected with the helium injection pipeline, so that the connection between the helium injection shaft 200 and the helium injection pipeline is more convenient and firm. The helium filling nozzle 220 is arranged at the bottom of the helium filling shaft, so that the sealing degree is better and the surface is leaked when the helium filling nozzle is connected with the helium filling port of the electric core.
The spring pressing sealing helium injection mechanism has the following beneficial effects:
1. through setting up the fixed block 320 that has spring installation cavity and the regulation closing cap 310 of adjustable spring installation cavity height, adjust closing cap 310 according to the packing force that the electric core of different model sizes needs when annotating helium, reduce the high compression spring installation cavity's of regulation closing cap 310 high space makes spring 410 to annotate the packing force of helium axle 200 grow, or rise the high expansion spring installation cavity's of height space of regulation closing cap 310 and make spring 410 to annotate the packing force of helium axle 200 diminish, need not to change again when changing the electric core and annotate helium mechanism, it has high to different battery suitability, saves manufacturing cost's advantage.
2. In order to avoid displacement of the adjustment cover 310 under the impact of the pressing force of the spring 410, a clasping portion is disposed at a position of the fixing block 320 around the adjustment cover 310, and after the adjustment cover 310 is adjusted, the adjustment cover 310 is locked by a fastener, so that inaccurate pressing force caused by displacement is avoided.
3. The helium injection shaft 200 can droop under the action of gravity when not abutted against the helium injection electric core, and the clamping piece 330 is arranged, so that the lowest position of the helium injection shaft 200 is limited, the sagging of the helium injection shaft 200 is prevented from dragging other parts, and the service life of the helium injection mechanism is prolonged.
The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the spirit of the utility model, and the utility model is intended to encompass such modifications and improvements.
Claims (10)
1. A spring compacting sealing helium injecting mechanism is characterized in that:
the helium injection device comprises a cavity (110), a top cover plate (120) and a helium injection shaft (200), wherein the top cover plate (120) is connected to the top of the cavity (110) through a fastener, the helium injection shaft (200) is of a hollow structure, and the helium injection shaft (200) vertically penetrates through the top cover plate (120) and the cavity (110);
an adjusting assembly is sleeved on a part of the helium injection shaft (200) on the top cover plate (120), the adjusting assembly comprises an adjusting sealing cover (310), a fixed block (320) and a spring (410), the bottom of the fixed block (320) is fixedly connected with the top cover plate (120), a penetrating spring mounting cavity is formed in the axial direction of the fixed block (320), the adjusting sealing cover (310) is connected with the fixed block (320) to form a sealing cover of the spring mounting cavity, and the adjusting sealing cover (310) limits the height of the spring mounting cavity through axial adjustment;
the adjusting cover (310) is provided with a through hole, the helium injecting shaft (200) can pass through the spring mounting cavity and the through hole in a sliding mode, and the spring (410) is placed in the spring mounting cavity and sleeved on the helium injecting shaft (200).
2. The spring loaded seal helium injection mechanism of claim 1, wherein:
an outer ring of the adjusting sealing cover (310) is provided with an external thread, and the inner wall of the spring mounting cavity is provided with an internal thread matched with the external thread;
the fixing block (320) surrounds the adjusting sealing cover (310) and is provided with a clasping part, and the clasping part clamps the connection between the adjusting sealing cover (310) and the fixing block (320) through a fastener.
3. The spring loaded seal helium injection mechanism of claim 1, wherein:
the adjusting assembly further comprises a clasping piece (330), wherein the clasping piece (330) is sleeved on the helium injection shaft (200) above the adjusting sealing cover (310) and is locked on the helium injection shaft (200) through a fastening piece.
4. The spring loaded seal helium injection mechanism of claim 1, wherein:
still include compression direction subassembly, compression direction subassembly includes spacing panel beating (420), annotate helium axle (200) be in fixed block (320) bottom surface position is equipped with first step (201), spacing panel beating (420) cover is established annotate on helium axle (200) and butt first step (201), one end butt of spring (410) regulation closing cap (310), the other end butt spacing panel beating (420).
5. The spring loaded seal helium injection mechanism of claim 4, wherein:
the compression guide assembly further comprises a guide sleeve (430), one end of the guide sleeve (430) is embedded into the surface of the top cover plate (120), the other end of the guide sleeve (430) extends into the cavity (110), and the helium injection shaft (200) can slidably pass through the guide sleeve (430).
6. The spring loaded seal helium injection mechanism of claim 5, wherein:
the compression guide assembly further comprises a corrugated pipe (440), and the corrugated pipe (440) is sleeved on the helium injection shaft (200) in the cavity (110);
the two ends of the corrugated pipe (440) are provided with a first fixing part (441) and a second fixing part (442), the first fixing part (441) is arranged in a fixing groove between the cavity (110) and the top cover plate (120), the helium injection shaft (200) is provided with a second step (202) at the bottom surface of the cavity (110), and the second fixing part (442) is clamped on the second step (202).
7. The spring loaded seal helium injection mechanism of claim 6, wherein:
the cavity (110) is provided with a first sealing groove (110A) on the joint surface of the first fixing part (441), and the second step (202) is provided with a second sealing groove (202A) on the joint surface of the second fixing part (442);
a seal (450) is arranged in the first seal groove (110A) and the second seal groove (202A).
8. The spring loaded seal helium injection mechanism of claim 7, wherein:
the seal (450) is an O-ring.
9. The spring loaded seal helium injection mechanism of claim 7, wherein:
the bottom surface of cavity (110) is equipped with third seal groove (110B), be equipped with sealing washer (460) in third seal groove (110B).
10. A spring loaded seal helium injection mechanism according to any one of claims 1 to 9 wherein:
the top end of the helium injection shaft (200) is connected with a threaded connecting pipe (210), and the bottom end of the helium injection shaft (200) is connected with a helium injection nozzle (220).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320894640.6U CN220206946U (en) | 2023-04-11 | 2023-04-11 | Spring compacting sealing helium injection mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320894640.6U CN220206946U (en) | 2023-04-11 | 2023-04-11 | Spring compacting sealing helium injection mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220206946U true CN220206946U (en) | 2023-12-19 |
Family
ID=89143873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320894640.6U Active CN220206946U (en) | 2023-04-11 | 2023-04-11 | Spring compacting sealing helium injection mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220206946U (en) |
-
2023
- 2023-04-11 CN CN202320894640.6U patent/CN220206946U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108011072B (en) | Liquid injection device | |
| CN220206946U (en) | Spring compacting sealing helium injection mechanism | |
| CN219084320U (en) | Soft joint gas tightness test fixture | |
| CN117848920A (en) | Concrete impermeability experiment detection device and detection method thereof | |
| CN211875424U (en) | Floating plugging type airtight mechanism for pipe structures | |
| CN210190354U (en) | Foaming agent injector for producing extruded sheet and extruded sheet production system | |
| CN210550603U (en) | Electricity core tool | |
| CN220291049U (en) | Electric core negative pressure inserted pin frock | |
| CN221099969U (en) | Plug tool for air tightness test explosion-proof valve | |
| CN220104411U (en) | Gas injection device and seal detection system | |
| CN219113898U (en) | Oil inlet hole isolation pipe assembly of combined piston oil duct | |
| CN221810010U (en) | Polyurethane adhesive storage equipment | |
| CN216382580U (en) | Helium detects sealing mechanism for equipment | |
| CN221885464U (en) | Power plug limiting inner frame | |
| CN220982587U (en) | Helium detector for battery | |
| CN220136596U (en) | Inflator pump core gas tightness detection device | |
| CN221647479U (en) | Ultrahigh-pressure nitrogen spring | |
| CN216671720U (en) | Battery cover plate shell entering device | |
| CN219865721U (en) | Adjustable guide sleeve | |
| CN216329779U (en) | Guide tool for injection mold of turbocharger shell | |
| CN215487407U (en) | Annotate material buffer | |
| CN211901158U (en) | Mounting structure of static pressure oil cylinder capillary restrictor | |
| CN213808276U (en) | Brother compresses tightly hydro-cylinder guide structure is taken out to injection molding machine | |
| CN220964042U (en) | Optical glass plane output mirror convenient to assemble | |
| CN221097609U (en) | Bellows structure for valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |