CN112547375A - Inner wall spraying jig for columnar workpiece - Google Patents

Inner wall spraying jig for columnar workpiece Download PDF

Info

Publication number
CN112547375A
CN112547375A CN202011386918.6A CN202011386918A CN112547375A CN 112547375 A CN112547375 A CN 112547375A CN 202011386918 A CN202011386918 A CN 202011386918A CN 112547375 A CN112547375 A CN 112547375A
Authority
CN
China
Prior art keywords
liquid storage
storage bag
spraying
liquid
workpiece
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.)
Withdrawn
Application number
CN202011386918.6A
Other languages
Chinese (zh)
Inventor
黄金
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202011386918.6A priority Critical patent/CN112547375A/en
Publication of CN112547375A publication Critical patent/CN112547375A/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/06Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00 specially designed for treating the inside of hollow bodies
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B14/00Arrangements for collecting, re-using or eliminating excess spraying material

Abstract

The invention discloses an inner wall spraying jig for columnar workpieces, which comprises a base and a top plate, wherein two side plates for connecting a bottom plate and the top plate are arranged between the top plate and the base; a first liquid storage bag is arranged on the hanging rod at the top in a sliding mode, a second liquid storage bag is arranged on the hanging rod at the bottom in a sliding mode, and a workpiece to be sprayed is placed between the first liquid storage bag and the second liquid storage bag. The invention is particularly suitable for workpieces with inner walls needing to be sprayed, can realize automatic spraying without using any electromechanical equipment, simultaneously realizes space sealing during spraying, reduces the influence of spraying liquid on the environment and human bodies, increases the safety during spraying and solves the problem of low spraying efficiency of the inner space.

Description

Inner wall spraying jig for columnar workpiece
Technical Field
The invention relates to a spraying jig, in particular to an inner wall spraying jig for a columnar workpiece.
Background
To the spraying of the internal face of work piece, the tradition way is that manual operation carries out the spraying to the instrument inner wall, and manual spraying is inefficient, and it is relatively poor to realize moreover, is difficult to operate, and the mode that utilizes the shower nozzle spraying has made things convenient for the operation, but the time that whole spraying process need consume is longer, and efficiency is also not high, and electric power need be used to automatic spraying mode, hardly satisfies service condition under the condition that sometimes the environment is not allowed, and the structure is complicated, and the quality is heavy, inconvenient carrying and transportation.
In addition, for the type of workpiece spraying, there are many spraying liquids, such as paint, protective layer, etc., and these chemical liquids generally have toxicity, and it is easy for workers to suck these spraying liquids in close-range operation, causing harm to human body, and the spraying process is unsafe.
Disclosure of Invention
The invention aims to solve the technical problem of providing a spraying jig for the inner wall of a columnar workpiece, which can realize quick spraying of the inner wall surface of the workpiece, does not use a motor in the whole spraying process, does not use any electric energy, simplifies the structure, is convenient to carry and transport, and has a closed spraying process, so that the safety of spraying operation can be greatly improved, and the damage of spraying liquid to a human body is reduced.
The invention is realized by the following technical scheme: the inner wall spraying jig for the columnar workpiece comprises a base and a top plate, wherein two side plates for connecting a bottom plate and the top plate are arranged between the top plate and the base, pressing assemblies are arranged on the side plates, the workpiece to be sprayed is placed between the two pressing assemblies and pressed, a suspension rod is arranged in the middle of the bottom of the top plate, a spraying section is arranged in the middle of the suspension rod, more than one atomizing nozzle is arranged on the outer wall surface of the spraying section, and a hollow liquid inlet cavity is formed in the spraying section;
a first liquid storage bag is slidably mounted on the suspension rod positioned at the top, a second liquid storage bag is slidably mounted on the suspension rod positioned at the bottom, a workpiece to be sprayed is placed between the first liquid storage bag and the second liquid storage bag, the upper opening end and the lower opening end of the workpiece are sealed through the first liquid storage bag and the second liquid storage bag, the spraying section is positioned inside the workpiece, and the bottom of the suspension rod extends into a liquid storage cylinder;
the top of liquid storage cylinder is provided with two piece at least first transmission pipes and two piece at least second transmission pipes, and first reservoir is connected to the other end of first transmission pipe, and the second reservoir is connected to the other end of second transmission pipe, and the output of first reservoir and second reservoir all communicates with each other through a drain pipe connection spraying section and with the inside cavity feed liquor chamber of spraying section.
As a preferable technical scheme, the first transmission pipe and the second transmission pipe are both provided with one-way liquid storage valves.
According to the preferable technical scheme, the pressing assembly comprises an arc-shaped clamping plate, the arc-shaped clamping plate is provided with an arc-shaped positioning cavity and used for being in arc contact with the outer wall surface of the columnar workpiece, a bearing is embedded into the outer side end of the arc-shaped clamping plate, a screw rod is arranged in a bearing hole, a nut is arranged on the side plate, the screw rod penetrates through the nut and extends out of the nut, and a rotating disc is arranged at the extending end of the outer portion of the screw rod.
As a preferable technical scheme, the first reservoir and the second reservoir are both made of elastic rubber materials with deformation recovery capability.
As the preferred technical scheme, a sliding shaft sleeve is arranged between the first liquid storage bag and the second liquid storage bag, the sliding shaft sleeve is tightly matched and slidably mounted on the suspension rod, and a liquid storage cavity is formed in each of the first liquid storage bag and the second liquid storage bag.
As the preferred technical scheme, the outer wall surfaces of the first liquid storage bag and the second liquid storage bag are annular thinning layers, more than one telescopic rod component is arranged at the upper end and the lower end of the first liquid storage bag and the second liquid storage bag, and the telescopic rod components are annularly arranged in the upper surface and the lower surface of the first liquid storage bag and the second liquid storage bag.
As the preferred technical scheme, the telescopic rod component comprises a fixed rod and a telescopic rod, the fixed rod is fixedly filled in the liquid storage bag, and the telescopic rod is telescopically arranged in the fixed rod.
As the preferred technical scheme, be provided with a stock solution chamber in the stock solution section of thick bamboo, the outside of stock solution section of thick bamboo is provided with annotates the liquid hole, and the bottom of hanging the pole is provided with a sealed piston, and sealed piston seals the stock solution chamber to form an extrusion chamber at the top in stock solution chamber, treat that the liquid of spraying is located the extrusion intracavity.
As a preferred technical scheme, more than one hole for collecting liquid is arranged at the upper end of the second liquid storage bag.
The invention has the beneficial effects that: the invention can spray the inner wall surface of the workpiece without adopting any electromechanical equipment, simplifies the structure, is convenient for the transportation and carrying of the jig, reduces the noise, is convenient for construction, can realize omnibearing spraying and improves the efficiency.
In addition, in the spraying process, the expanded liquid storage bag can seal the opening end of the workpiece, so that the whole spraying process is totally closed, the spraying liquid is reduced to be sucked into the human body as much as possible, and the safety in the spraying operation is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the present invention after the workpiece is installed;
FIG. 3 is a schematic view of the internal structure of the liquid storage cartridge of the present invention;
fig. 4 is a schematic view of the internal structure of the reservoir of the present invention.
Detailed Description
As shown in fig. 1 and 2, the inner wall spraying jig for columnar workpieces comprises a base 11 and a top plate 19, two side plates 2 connecting a bottom plate and the top plate are arranged between the top plate 19 and the base 11, pressing assemblies are arranged on the side plates 2, a workpiece 5 to be sprayed is placed between the two pressing assemblies and pressed, a suspension rod 8 is arranged at the middle position of the bottom of the top plate 19, a spraying section 81 is arranged at the middle section of the suspension rod 8, more than one atomizing nozzle is arranged on the outer wall surface of the spraying section 81, and a hollow liquid inlet cavity (not shown) is formed in the spraying section 81;
a first liquid storage bag 17 is arranged on the hanging rod 8 at the top in a sliding mode, a second liquid storage bag 13 is arranged on the hanging rod 8 at the bottom in a sliding mode, a workpiece 5 to be sprayed is placed between the first liquid storage bag 17 and the second liquid storage bag 13, the upper opening end and the lower opening end of the workpiece 5 are sealed through the first liquid storage bag 17 and the second liquid storage bag 13, the spraying section 81 is located inside the workpiece, and the bottom of the hanging rod 8 extends into a liquid storage barrel 7;
the top of the liquid storage cylinder 7 is provided with at least two first transmission pipes 1 and at least two second transmission pipes 12, the other end of the first transmission pipe 1 is connected with the first liquid storage bag 17, the other end of the second transmission pipe 12 is connected with the second liquid storage bag 13, and the output ends of the first liquid storage bag 17 and the second liquid storage bag 13 are connected with the spraying section 81 through a liquid outlet pipe 6 and communicated with the hollow liquid inlet cavity inside the spraying section 81.
Wherein, all be provided with one-way liquid storage valve 18 on first transmission pipe 1 and the second transmission pipe 12, through one-way liquid storage valve 18 for the spraying liquid that enters into the inflation reservoir can not flow back to in the liquid storage cylinder 7.
The pressing assembly comprises an arc-shaped clamping plate 16, the arc-shaped clamping plate 16 is provided with an arc-shaped positioning cavity and used for being in arc contact with the outer wall surface of a columnar workpiece, a bearing 14 is embedded into the outer side end of the arc-shaped clamping plate 16, a screw rod 15 is arranged in a hole of the bearing 14, a nut is arranged on the side plate 2, the screw rod 15 penetrates through the nut 4 and extends out of the nut, a rotating disc 3 is arranged at the extending end of the outer portion of the screw rod, when spraying is needed, the screw rod is rotated, the workpiece to be sprayed is placed between the two arc-shaped clamping plates, and then the screw rod is rotated to clamp the workpiece, so.
In this embodiment, the first reservoir 17 and the second reservoir 13 are both made of elastic rubber materials with deformation recovery capability. The middle of first reservoir 17, second reservoir 13 all sets up a slip axle sleeve 23, and slip axle sleeve 23 tight fit slidable mounting all is provided with a stock solution chamber 27 in first reservoir 17 and the second reservoir 13 on hanging the pole 8, through slip axle sleeve 23, can be on hanging the pole the adjustment that the position was realized to the sliding position, and then makes the position of reservoir just in time be located the upper and lower open end of work piece.
As shown in fig. 4, the outer wall surfaces of the first reservoir 17 and the second reservoir 13 are a layer of annular thinning layer 26, and the annular thinning layer 26 has the function of enabling the reservoir to realize annular expansion of the edge after liquid is pressed in, so as to reduce the expansion of the reservoir in thickness;
first reservoir 17 and second reservoir 13's upper and lower end is provided with the telescopic link subassembly more than one, the telescopic link subassembly is the annular and lays in the upper and lower face of first reservoir and second reservoir, the telescopic link subassembly includes dead lever 24 and telescopic link 25, the fixed packing of dead lever 24 is in the reservoir, telescopic link 25 telescopic installs in the dead lever, through the telescopic link subassembly, make the inflation of whole reservoir can become the inflation of flat state, make its minimize inflation on thickness, the upper and lower elasticity rubber materials for the thickening of reservoir, so the inflation most takes place on the annular of edge subtracts the thin layer.
As shown in fig. 3, a liquid storage chamber 27 is arranged in the liquid storage barrel, the liquid injection hole 9 is arranged outside the liquid storage barrel, the bottom of the suspension rod is provided with a sealing piston 21, the sealing piston 21 seals the liquid storage chamber 22, a squeezing chamber 71 is formed at the top of the liquid storage chamber 22, and the liquid to be sprayed is positioned in the squeezing chamber 71.
In this embodiment, the upper end of the second reservoir 13 is provided with more than one hole (not shown) for collecting liquid, and the holes are used for collecting the dropped spraying liquid for recycling, thereby saving economic cost.
During the spraying, because the spraying section is located the inside of work piece, artifical whole liquid reserve cylinder of pushing down this moment for the spraying liquid at the relative top of sealing piston takes place the extrusion, and the movable contact surface that hangs line and liquid reserve cylinder need set up more than one sealing washer and increases the leakproofness, and the line of hanging can be the metal slender rod of stereoplasm in this embodiment.
After liquid in the liquid storage barrel is squeezed, liquid enters into first liquid storage bag and second liquid storage bag respectively through the transmission pipe, make first liquid storage bag and second liquid storage bag expand, liquid in the liquid storage bag after the inflation can only enter into the spraying section in, spout by the atomizer on the spraying section again, next in-process, can not use manual operation, because can retract after the liquid storage bag expands, and then go out the liquid of inside with certain pressure extrusion, by the upper and lower open face of work piece that has been sealed to first liquid storage bag, second liquid storage bag this moment, and then realize a totally closed spraying process, reduce spraying liquid and outside air contact, increase the security of spraying operation, after the liquid blowout in the liquid storage bag, utilize the manpower to push down the liquid storage barrel this moment, with this circulation spraying.
The invention has the beneficial effects that: the invention can spray the inner wall surface of the workpiece without adopting any electromechanical equipment, simplifies the structure, is convenient for the transportation and carrying of the jig, reduces the noise, is convenient for construction, can realize omnibearing spraying and improves the efficiency.
In addition, in the spraying process, the expanded liquid storage bag can seal the opening end of the workpiece, so that the whole spraying process is totally closed, the spraying liquid is reduced to be sucked into the human body as much as possible, and the safety in the spraying operation is improved.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.

Claims (9)

1. The utility model provides an inner wall spraying tool of column work piece which characterized in that: the spraying device comprises a base and a top plate, wherein two side plates for connecting a bottom plate and the top plate are arranged between the top plate and the base, the side plates are respectively provided with a pressing assembly, a workpiece to be sprayed is placed between the two pressing assemblies to be pressed, a suspension rod is arranged in the middle of the bottom of the top plate, a spraying section is arranged in the middle of the suspension rod, more than one atomizing nozzle is arranged on the outer wall surface of the spraying section, and a hollow liquid inlet cavity is formed in the spraying section;
a first liquid storage bag is slidably mounted on the suspension rod positioned at the top, a second liquid storage bag is slidably mounted on the suspension rod positioned at the bottom, a workpiece to be sprayed is placed between the first liquid storage bag and the second liquid storage bag, the upper opening end and the lower opening end of the workpiece are sealed through the first liquid storage bag and the second liquid storage bag, the spraying section is positioned inside the workpiece, and the bottom of the suspension rod extends into a liquid storage cylinder;
the top of liquid storage cylinder is provided with two piece at least first transmission pipes and two piece at least second transmission pipes, and first reservoir is connected to the other end of first transmission pipe, and the second reservoir is connected to the other end of second transmission pipe, and the output of first reservoir and second reservoir all communicates with each other through a drain pipe connection spraying section and with the inside cavity feed liquor chamber of spraying section.
2. The inner wall spraying jig for columnar workpieces according to claim 1, characterized in that: and the first transmission pipe and the second transmission pipe are both provided with one-way liquid storage valves.
3. The inner wall spraying jig for columnar workpieces according to claim 1, characterized in that: the pressing assembly comprises an arc-shaped clamping plate, the arc-shaped clamping plate is provided with an arc-shaped positioning cavity and used for being in arc contact with the outer wall surface of the columnar workpiece, a bearing is arranged at the outer side end of the arc-shaped clamping plate in an embedded mode, a screw rod is arranged in a bearing hole, a nut is arranged on a side plate, the screw rod penetrates through the nut and stretches out of the nut, and a rotating disc is arranged at the outer end of the screw rod.
4. The inner wall spraying jig for columnar workpieces according to claim 1, characterized in that: the first liquid storage bag and the second liquid storage bag are both made of elastic rubber materials with deformation recovery capacity.
5. The inner wall spraying jig for columnar workpieces according to claim 4, wherein: the middle of the first liquid storage bag and the second liquid storage bag is provided with a sliding shaft sleeve, the sliding shaft sleeve is tightly matched and slidably mounted on the suspension rod, and liquid storage cavities are formed in the first liquid storage bag and the second liquid storage bag.
6. The inner wall spraying jig for columnar workpieces according to claim 4, wherein: the outer wall surfaces of the first liquid storage bag and the second liquid storage bag are annular thinning layers, more than one telescopic rod component is arranged at the upper end and the lower end of the first liquid storage bag and the second liquid storage bag, and the telescopic rod components are annularly arranged in the upper surface and the lower surface of the first liquid storage bag and the second liquid storage bag.
7. The inner wall spraying jig for columnar workpieces according to claim 6, wherein: the telescopic rod component comprises a fixed rod and a telescopic rod, the fixed rod is fixedly filled in the liquid storage bag, and the telescopic rod is telescopically arranged in the fixed rod.
8. The inner wall spraying jig for columnar workpieces according to claim 1, characterized in that: be provided with a stock solution chamber in the stock solution section of thick bamboo, the outside of stock solution section of thick bamboo is provided with annotates the liquid hole, and the bottom of hanging the pole is provided with a sealing piston, and sealing piston seals the stock solution chamber to form an extrusion chamber at the top in stock solution chamber, treat that the liquid of spraying is located the extrusion intracavity.
9. The inner wall spraying jig for columnar workpieces according to claim 1, characterized in that: the upper end of the second liquid storage bag is provided with more than one hole for collecting liquid.
CN202011386918.6A 2020-12-01 2020-12-01 Inner wall spraying jig for columnar workpiece Withdrawn CN112547375A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011386918.6A CN112547375A (en) 2020-12-01 2020-12-01 Inner wall spraying jig for columnar workpiece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011386918.6A CN112547375A (en) 2020-12-01 2020-12-01 Inner wall spraying jig for columnar workpiece

Publications (1)

Publication Number Publication Date
CN112547375A true CN112547375A (en) 2021-03-26

Family

ID=75047064

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011386918.6A Withdrawn CN112547375A (en) 2020-12-01 2020-12-01 Inner wall spraying jig for columnar workpiece

Country Status (1)

Country Link
CN (1) CN112547375A (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204769319U (en) * 2015-06-07 2015-11-18 南京维泰新材料科技有限公司 Metal pipe fittings's rust -resistant medium spraying device of inner wall
CN206567125U (en) * 2017-03-07 2017-10-20 东莞市飞扬塑胶模具有限公司 A kind of plastic rubber member surface spraying treatment device
CN108855712A (en) * 2018-07-25 2018-11-23 王秀荣 A kind of adjustable inner tube wall flush coater of stroke
CN109092600A (en) * 2018-10-31 2018-12-28 苏州赛亚智能技术有限公司 A kind of inner wall of the pipe automatic spraying robot
CN209034663U (en) * 2018-09-21 2019-06-28 天津鑫峰科技有限公司 A kind of spraying equipment convenient for spraying tube inner wall
CN209631439U (en) * 2018-12-25 2019-11-15 郑州卓普科技股份有限公司 Hydrocoupling inner sleeve surface spraying treatment device
CN210230415U (en) * 2019-06-27 2020-04-03 江西双华实业发展有限公司 Inner wall spraying device for producing battery steel shell
CN210304287U (en) * 2019-06-26 2020-04-14 泰州润骐防务科技有限公司 Aerospace shell paint spraying device convenient for uniform spraying
CN210333081U (en) * 2019-06-14 2020-04-17 天津市有发金属包装容器有限公司 Steel pail paint spraying apparatus
CN211613188U (en) * 2019-12-06 2020-10-02 奥博睿特(天津)科技发展有限公司 Powder coating quick spraying device

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204769319U (en) * 2015-06-07 2015-11-18 南京维泰新材料科技有限公司 Metal pipe fittings's rust -resistant medium spraying device of inner wall
CN206567125U (en) * 2017-03-07 2017-10-20 东莞市飞扬塑胶模具有限公司 A kind of plastic rubber member surface spraying treatment device
CN108855712A (en) * 2018-07-25 2018-11-23 王秀荣 A kind of adjustable inner tube wall flush coater of stroke
CN209034663U (en) * 2018-09-21 2019-06-28 天津鑫峰科技有限公司 A kind of spraying equipment convenient for spraying tube inner wall
CN109092600A (en) * 2018-10-31 2018-12-28 苏州赛亚智能技术有限公司 A kind of inner wall of the pipe automatic spraying robot
CN209631439U (en) * 2018-12-25 2019-11-15 郑州卓普科技股份有限公司 Hydrocoupling inner sleeve surface spraying treatment device
CN210333081U (en) * 2019-06-14 2020-04-17 天津市有发金属包装容器有限公司 Steel pail paint spraying apparatus
CN210304287U (en) * 2019-06-26 2020-04-14 泰州润骐防务科技有限公司 Aerospace shell paint spraying device convenient for uniform spraying
CN210230415U (en) * 2019-06-27 2020-04-03 江西双华实业发展有限公司 Inner wall spraying device for producing battery steel shell
CN211613188U (en) * 2019-12-06 2020-10-02 奥博睿特(天津)科技发展有限公司 Powder coating quick spraying device

Similar Documents

Publication Publication Date Title
CN112547375A (en) Inner wall spraying jig for columnar workpiece
CN206325805U (en) A kind of simple glass glue rifle suitable for glass door and window
CN105530844B (en) Pneumatic toothpaste shell
CN212929107U (en) Anti-leakage hydraulic oil cylinder
CN203064485U (en) Quick drying rubber sprinkling can
CN102444269A (en) High-pressure pump assembly for airless sprayer
CN202641644U (en) Manual pressurization type vehicle cleaner
CN212154713U (en) Coiled tubing preventer with manual dismounting device
CN210317981U (en) Combined sealing device for piston of hydraulic cylinder
CN201173101Y (en) Outer brake type transverse auto-compensation packing kit
CN2439335Y (en) Portable type roller glue applying apparatus
CN107051837B (en) Convenient to use's pneumatic rifle of gluing of direct current
CN211247083U (en) Atomizing spraying device of no dead angle spraying
CN217255818U (en) Compound pipe bush water pressure frock
CN212056688U (en) Novel lubricating oil injection device for felling machine
CN210787840U (en) Oil injection structure of automatic vacuum coating production line
CN219569490U (en) Smearing device for waterproof plugging of assembled wall sealant
CN215507373U (en) Multifunctional watering can
CN219750577U (en) Packaging can for seal primer
CN110259597A (en) A kind of new Joining Structure between valve mechanism cover and cylinder head
CN211247032U (en) Handheld high atomizing leak protection spray bottle
CN212856269U (en) Spray gun head
CN215197922U (en) Glue storage tank of foam sticking machine
CN218935085U (en) Oil pressure brake device of oil circuit
CN217271855U (en) Pressure container with double-layer sealing structure

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WW01 Invention patent application withdrawn after publication
WW01 Invention patent application withdrawn after publication

Application publication date: 20210326