CN114147510B - Production tool for gate valve - Google Patents
Production tool for gate valve Download PDFInfo
- Publication number
- CN114147510B CN114147510B CN202111441327.9A CN202111441327A CN114147510B CN 114147510 B CN114147510 B CN 114147510B CN 202111441327 A CN202111441327 A CN 202111441327A CN 114147510 B CN114147510 B CN 114147510B
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- ring
- pressing plate
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- side wall
- plate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0032—Arrangements for preventing or isolating vibrations in parts of the machine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
- Details Of Valves (AREA)
Abstract
The invention provides a production tool of a gate valve, and belongs to the technical field of machinery. It has solved the problem that current frock influences processingquality. The production tool of the gate valve comprises a workbench, an upper pressing plate and a lower pressing plate, wherein an upper pipe body and a lower pipe body of a valve body of the gate valve are respectively pressed on the upper pressing plate and the lower pressing plate; the integrated into one piece has the barrel on the top board diapire, and the barrel cover forms sealedly through the sealing washer between barrel lower extreme and the last barrel outer wall outside the body of tubes, forms annular closed chamber between barrel, last body, top board and the sealing washer, runs through on the barrel section of thick bamboo wall to be equipped with the gas pocket of intercommunication closed chamber, and the barrel external fixation has the air cock of intercommunication gas pocket. The invention can improve the processing quality.
Description
Technical Field
The invention relates to a production tool for a gate valve, in particular to a production tool for a gate valve body.
Background
The gate valve is a shutter, the movement direction of the shutter is vertical to the fluid direction, and the gate valve can only be fully opened and fully closed and cannot be adjusted and throttled.
The valve body is an important component of the gate valve, the structure of the existing gate valve of a certain type is shown in figure 1, the valve body 7 comprises a body with an axial flow passage, and an operation cavity which is radially arranged and communicated with the axial flow passage is also arranged on the body; the top and the bottom of the body are both straight tubular and are respectively an upper tube body 7a and a lower tube body 7b.
When the valve body is machined, the valve body is generally molded into a rough shape by a die, and then subjected to surface deburring, polishing, and the like by machining. In the machining process, the valve body is vertically arranged and clamped by the upper pressure plate and the lower pressure plate, and the valve body is driven to rotate through the rotation of the lower pressure plate, so that the outer surface of the valve body is machined through a cutter. In the processing process, the valve body is pressed and positioned through two ends, and the probability that the valve body generates certain position deviation under the vibration effect generated in the processing process is high, so that the processing quality and the processing precision of the valve body are influenced.
Disclosure of Invention
The invention aims to provide a production tool of a gate valve with high machining precision aiming at the problems in the prior art.
The purpose of the invention can be realized by the following technical scheme: a production tool of a gate valve comprises a workbench, an upper pressing plate and a lower pressing plate, wherein the upper pressing plate and the lower pressing plate are horizontally arranged on the workbench in parallel, a valve body of the gate valve is vertically arranged between the upper pressing plate and the lower pressing plate, an upper pipe body and a lower pipe body of the valve body are respectively tightly pressed on the upper pressing plate and the lower pressing plate, the lower pressing plate is rotatably arranged on the workbench and is driven by a motor to rotate, a connecting plate and a driving piece for driving the connecting plate to move up and down are arranged above the upper pressing plate, and the upper pressing plate is rotatably connected with the connecting plate through a shaft body; integrated into one piece has the barrel on the top board diapire, and the barrel cover is outside last body, and the sealing washer through the level setting forms sealedly between barrel lower extreme and the last body outer wall, and forms one between barrel, last body, top board and the sealing washer and be annular closed chamber, and the barrel section of thick bamboo wall is improved level and is run through the gas pocket that is equipped with intercommunication closed chamber, and the barrel external fixation has the air cock of intercommunication gas pocket.
During actual installation, the air nozzle is connected with air pumping and discharging equipment through a pipeline;
the using process is as follows: the gate valve body is placed on the lower pressure plate and is clamped through the clamp; then the driving piece drives the connecting plate to move downwards to drive the upper pressure plate to move downwards to be pressed on the valve body; then the air pumping and releasing equipment supplies air to the closed cavity through the air nozzle to wrap the upper pipe body of the valve body; finally, the motor drives the lower pressing plate to rotate so as to drive the valve body to integrally rotate, and the surface of the valve body is polished by using a cutter; after the processing is finished, the gas in the closed cavity is pumped out by the gas pumping and discharging equipment to enable the interior of the closed cavity to be recovered to the normal pressure state, then the upper pressing plate and the clamp are reset, and at the moment, the valve body can be easily taken out.
Gas is fed into the closed cavity through the air tap, so that an air layer is formed between the cylinder and the valve body, the valve body is elastically limited in the radial direction, the valve body can be ensured to stably rotate, vibration generated when the valve body is processed can be buffered by certain elasticity of the air layer, and therefore the rotating stability of the valve body is further improved, and the processing quality and precision are improved.
In the production tool of the gate valve, the sealing ring is made of rubber materials, and a supporting structure for horizontally supporting the sealing ring is further arranged on the cylinder body. The sealing ring is made of rubber materials, so that the valve body can be prevented from being damaged when the sealing ring is contacted with the valve body, and the processing quality of the valve body is further ensured.
In the production tool of the gate valve, the lower end of the cylinder body is an annular step, the annular step is composed of an annular side wall and an annular bottom wall, the sealing ring is fixed in the annular step, the upper end face of the sealing ring is tightly pressed on the annular bottom wall to form sealing, and the inner side wall and the outer side wall of the sealing ring are respectively tightly pressed on the outer side wall of the upper pipe body and the annular side wall to form sealing.
In the production tooling of the gate valve, the supporting structure comprises a pressing cap screwed outside the annular side wall, the inner side wall of the pressing cap is integrally formed with an annular blocking edge, the annular blocking edge is coaxial with the pressing cap, the lower end face of the sealing ring is abutted against the annular blocking edge, and on the premise of better upwards supporting the sealing ring, the sealing ring is clamped between the annular blocking edge and the annular bottom wall to realize positioning, so that the sealing ring is convenient to replace.
In the production tool of the gate valve, the inner diameter of the annular blocking edge is slightly larger than the outer diameter of the upper pipe body so as to better support the sealing ring.
As another scheme, in the production tool of the gate valve, the supporting structure comprises a blocking ring fixed below the cylinder body, the blocking ring is sleeved outside the upper pipe body, and the lower end face of the sealing ring is pressed on the blocking ring.
In the production tool of the gate valve, the outer side wall of the upper pipe body is provided with a conical surface, the diameter of the conical surface is gradually increased downwards, and the upper side of the conical surface extends to the top wall of the upper pipe body; the sealing device is characterized in that an annular mounting groove is formed between the bottom wall of the conical surface and the bottom wall of the upper pressing plate, a rubber ring is arranged in the mounting groove and fixedly connected with the upper pressing plate, the cross section of the rubber ring is a right-angled triangle matched with the mounting groove, and the inner side wall and the upper end face of the rubber ring are respectively abutted against the conical surface and the bottom wall of the upper pressing plate so as to strengthen the sealing effect formed between the upper pipe body and the upper pressing plate and enable the sealed cavity to be stably formed.
In the production frock of foretell gate valve, the anchor clamps type is pneumatic clamping jaw, and pneumatic clamping jaw includes the claw that the radial movement of pipe body down can be followed to the round, and the claw can sticis on pipe body inner wall down to press from both sides tight pipe body down, have convenient to use, simple structure's advantage.
In the production tool of the gate valve, a slewing bearing is horizontally arranged between the lower pressing plate and the workbench, the slewing bearing comprises an inner ring and an outer ring, and the inner ring and the outer ring are fixedly connected with the workbench and the lower pressing plate respectively.
In foretell gate valve's production frock, the motor setting is fixed with the master gear on slewing bearing one side on the main shaft of motor, and the shaping has round and the tooth that the master gear cooperateed and meshed on slewing bearing's the outer lane, and the motor drives the lower pressure plate through the gear drive mode and rotates promptly, has simple structure, advantage that the operational reliability is high.
Compared with the prior art, this production frock of gate valve has following advantage:
1. the air faucet is used for feeding air into the closed cavity, so that an air layer is formed between the barrel and the valve body, the valve body is elastically limited in the radial direction, the valve body can be ensured to stably rotate, vibration generated when the valve body is processed can be buffered by certain elasticity of the air layer, and accordingly the rotating stability of the valve body is further improved, and the processing quality and precision are improved.
2. The sealing ring is made of rubber materials, so that the valve body can be prevented from being damaged when the sealing ring is contacted with the valve body, and the processing quality of the valve body is further ensured.
Drawings
Fig. 1 is a schematic structural view of a gate valve body.
Fig. 2 is a schematic structural view of the gate valve production tool.
Fig. 3 is an enlarged schematic view of a structure at a in fig. 2.
Fig. 4 is a schematic structural view of the upper platen.
In the figure, 1, a workbench; 1a, a frame; 2. an upper pressure plate; 2a, a cylinder body; 2a1, air holes; 2a2, an annular step; 2b, a shaft body; 3. pressing the plate downwards; 4. a motor; 5. a slewing bearing; 6. a main gear; 7. a valve body; 7a, an upper pipe body; 7a1, a conical surface; 7b, a lower pipe body; 8. a connecting plate; 9. a drive member; 10. a guide bar; 11. positioning a plate; 12. a clamp; 12a, a claw portion; 13. a seal ring; 14. a closed cavity; 15. an air tap; 16. pressing the cap; 16a, an annular blocking edge; 17. a rubber ring.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
Example one
As shown in fig. 2, the production tool of the gate valve comprises a workbench 1, an upper press plate 2 and a lower press plate 3. Wherein, the working table 1 is provided with a frame 1a for supporting the working table 1; the upper pressing plate 2 and the lower pressing plate 3 are both flat-shaped, the upper pressing plate 2 and the lower pressing plate 3 are both horizontally arranged on the workbench 1, and the upper pressing plate 2 and the lower pressing plate 3 are arranged in parallel.
In particular, the present invention relates to a method for producing,
The valve body 7 of the gate valve is vertically arranged between the upper pressing plate 2 and the lower pressing plate 3, and the top wall of an upper pipe body 7a and the bottom wall of a lower pipe body 7b of the valve body 7 are respectively tightly pressed on the bottom wall of the upper pressing plate 2 and the top wall of the lower pressing plate 3. The upper pressure plate 2 is provided with a connecting plate 8 and a driving piece 9 for driving the connecting plate 8 to move up and down, and the upper pressure plate 2 is rotatably connected with the connecting plate 8 through a shaft body 2 b.
Wherein, the connecting plate 8 is parallel to the upper press plate 2; shaft body 2b and 2 formula structures as an organic whole of top board, integrated into one piece has the ring body on the diapire of connecting plate 8, and the ring body cover is outside shaft body 2b, and the ring body passes through the bearing and is connected with shaft body 2b rotation.
The driving piece 9 is arranged above the connecting plate 8, the type of the driving piece 9 is an air cylinder or an oil cylinder, and a piston rod of the air cylinder or the oil cylinder is fixedly connected with the connecting plate 8. Further, a guide rod 10 is vertically fixed on the workbench 1, and a guide hole which is matched with the guide rod 10 and through which the guide rod 10 passes is formed in the connecting plate 8 so as to better guide the sliding of the connecting plate 8; the driving piece 9 is fixed on the positioning plate 11, the driving piece 9 is positioned between the positioning plate 11 and the connecting plate 8, and the positioning plate 11 is fixedly connected with the guide rod 10.
As shown in fig. 1, a clamp 12 is fixed to the lower platen 3, the clamp 12 is located inside the lower pipe body 7b, and the clamp 12 clamps the lower pipe body 7b by engaging with the inner wall of the lower pipe body 7b. In the present embodiment, the gripper 12 is of the type pneumatic gripper, an existing product, which is commercially available; the pneumatic clamping jaw comprises a circle of claw parts 12a capable of moving along the radial direction of the lower pipe body 7b, and the claw parts 12a can be pressed on the inner wall of the lower pipe body 7b to clamp the lower pipe body 7b.
As shown in fig. 3, a cylinder 2a is integrally formed on the bottom wall of the upper platen 2, the cylinder 2a and the upper tube 7a are coaxial, and the cylinder 2a is sleeved outside the upper tube 7 a. The lower end of the cylinder body 2a and the outer wall of the upper tube body 7a are sealed through a horizontally arranged sealing ring 13, an annular closed cavity 14 is formed among the cylinder body 2a, the upper tube body 7a, the upper pressure plate 2 and the sealing ring 13, an air hole 2a1 communicated with the closed cavity 14 is horizontally arranged on the cylinder wall of the cylinder body 2a in a penetrating mode, and an air nozzle 15 communicated with the air hole 2a1 is fixed outside the cylinder body 2 a.
The air nozzle 15 includes a tubular air discharge portion (not shown) screwed into the air hole 2a1, and a connection portion between the air discharge portion and the cylinder 2a is sealed by a thread seal tape.
As shown in fig. 3 and 4, the sealing ring 13 is made of rubber material, and a supporting structure for horizontally supporting the sealing ring 13 is further provided on the cylinder 2 a. The sealing ring 13 is made of rubber materials, so that the valve body 7 can be prevented from being damaged when the sealing ring 13 is in contact with the valve body 7, and the processing quality of the valve body 7 is further ensured. In this embodiment, the lower end of the cylinder 2a is an annular step 2a2, the annular step 2a2 is composed of an annular side wall and an annular bottom wall, the sealing ring 13 is fixed in the annular step 2a2, the upper end face of the sealing ring 13 is tightly pressed on the annular bottom wall to form a seal, and the inner side wall and the outer side wall of the sealing ring 13 are respectively tightly pressed on the outer side wall and the annular side wall of the upper tube body 7a to form a seal. The supporting structure comprises a pressing cap 16 which is screwed outside the annular side wall, an annular blocking edge 16a is integrally formed on the inner side wall of the pressing cap 16, the annular blocking edge 16a and the pressing cap 16 are coaxial, the lower end face of the sealing ring 13 is abutted against the annular blocking edge 16a, and on the premise of better upwards supporting the sealing ring 13, the sealing ring 13 is positioned between the annular blocking edge 16a and the annular bottom wall through clamping, so that the sealing ring 13 is convenient to replace. The inner diameter of the annular flange 16a is preferably slightly larger than the outer diameter of the upper tube body 7a in order to better support the sealing ring 13.
Further, the outer side wall of the upper tube body 7a is provided with a conical surface 7a1, the diameter of the conical surface 7a1 gradually increases downwards, and the upper side of the conical surface 7a1 extends to the top wall of the upper tube body 7a; an annular mounting groove is formed between the conical surface 7a1 and the bottom wall of the upper pressure plate 2, a rubber ring 17 is arranged in the mounting groove, the rubber ring 17 is fixedly connected with the upper pressure plate 2, and preferably, the rubber ring 17 is fixedly connected with the upper pressure plate 2 in a bonding manner; the cross section of the rubber ring 17 is in a right-angled triangle shape matched with the installation groove, and the inner side wall and the upper end face of the rubber ring 17 are respectively pressed against the bottom walls of the conical surface 7a1 and the upper pressure plate 2 so as to enhance the sealing effect formed between the upper pipe body 7a and the upper pressure plate 2 and enable the closed cavity 14 to be stably formed.
During actual installation, the air tap 15 is connected with air pumping and discharging equipment through a pipeline;
the using process is as follows: the gate valve body 7 is placed on the lower pressure plate 3 and is clamped through the clamp 12; then the driving piece 9 drives the connecting plate 8 to move downwards to drive the upper pressure plate 2 to move downwards to press the valve body 7; then the air pumping and releasing equipment supplies air into the closed cavity 14 through an air nozzle 15 to wrap the pipe body 7a on the valve body 7; finally, the motor 4 drives the lower pressing plate 3 to rotate so as to drive the valve body 7 to integrally rotate, and the surface of the valve body 7 is polished by using a cutter; after the processing is finished, the gas in the closed cavity 14 is pumped out by the gas pumping and discharging equipment to enable the interior of the closed cavity to be in a normal pressure state, then the upper pressing plate 2 and the clamp 12 are reset, and at the moment, the valve body 7 can be easily taken out.
Example two
The structure and principle of the second embodiment are basically the same as those of the first embodiment, and different points are as follows: the supporting structure comprises a retaining ring fixed below the cylinder body 2a, the retaining ring is sleeved outside the upper pipe body 7a, and the lower end face of the sealing ring 13 is pressed on the retaining ring.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (1)
1. A gate valve production tool capable of improving processing quality and precision comprises a workbench, an upper pressing plate and a lower pressing plate, wherein the upper pressing plate and the lower pressing plate are horizontally arranged on the workbench in parallel, a valve body of a gate valve is vertically arranged between the upper pressing plate and the lower pressing plate, an upper pipe body and a lower pipe body of the valve body are respectively pressed on the upper pressing plate and the lower pressing plate, the lower pressing plate is rotatably arranged on the workbench and is driven by a motor to rotate, a connecting plate and a driving piece for driving the connecting plate to move up and down are arranged above the upper pressing plate, and the upper pressing plate is rotatably connected with the connecting plate through a shaft body; the bottom wall of the upper pressure plate is integrally formed with a cylinder body, the cylinder body is sleeved outside the upper pipe body, a seal is formed between the lower end of the cylinder body and the outer wall of the upper pipe body through a horizontally arranged seal ring, an annular closed cavity is formed between the cylinder body, the upper end of the cylinder body and the seal ring, an air hole communicated with the closed cavity is horizontally arranged on the cylinder wall of the cylinder body in a penetrating mode, an air tap communicated with the air hole is fixed outside the cylinder body, the seal ring is made of rubber materials, a supporting structure used for horizontally supporting the seal ring is further arranged on the cylinder body, the lower end of the cylinder body is an annular step, the annular step is composed of an annular side wall and an annular bottom wall, the seal ring is fixed in the annular step, the upper end face of the seal ring is tightly pressed on the annular bottom wall to form a seal, the inner side wall and the outer side wall of the upper pipe body are respectively pressed on the outer side wall of the annular side wall to form a seal, the supporting structure comprises a pressing cap screwed outside the annular side wall, an annular blocking edge is integrally formed on the inner side wall of the pressing cap, the annular blocking edge is coaxial with the lower end face of the pressing cap, the conical surface of the sealing ring is pressed on the upper end face of the conical surface, the conical surface of the upper blocking ring is gradually enlarged, the upper blocking ring, the upper side wall of the upper blocking ring, and the upper side wall of the upper pipe body, the conical surface of the upper blocking ring is enlarged upper blocking ring, and the upper pipe body, the upper blocking ring is gradually enlarged upper blocking ring, and the upper side wall of the upper pipe body; an annular mounting groove is formed between the conical surface and the bottom wall of the upper pressure plate, a rubber ring is arranged in the mounting groove, the rubber ring is fixedly connected with the upper pressure plate, the cross section of the rubber ring is in a right-angled triangle matched with the mounting groove, the inner side wall and the upper end face of the rubber ring are respectively abutted against the conical surface and the bottom wall of the upper pressure plate, the clamp is a pneumatic clamping jaw, the pneumatic clamping jaw comprises a circle of clamping jaw capable of moving along the radial direction of the lower pipe body, the clamping jaw can be tightly pressed on the inner wall of the lower pipe body, a slewing bearing is horizontally arranged between the lower pressure plate and the workbench, the slewing bearing comprises an inner ring and an outer ring, the inner ring and the outer ring are respectively fixedly connected with the workbench and the lower pressure plate, the motor is arranged on one side of the slewing bearing, a main gear is fixed on a main shaft of the motor, a circle of teeth matched and meshed with the main gear is formed on the outer ring of the slewing bearing, a guide rod is vertically fixed on the workbench, and a guide hole matched with the guide rod and used for the guide rod to penetrate through is formed in the connecting plate, so as to better guide the sliding of the connecting plate; the driving piece is fixed on the locating plate, and the driving piece is located between locating plate and the connecting plate, and the locating plate links firmly with the guide arm, and the guide arm has and only has one to set up in one side of connecting plate and driving piece, and wherein, the motor sets up in the below of valve body and the pivot of motor is parallel and skew setting with the axis of valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111441327.9A CN114147510B (en) | 2021-11-30 | 2021-11-30 | Production tool for gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111441327.9A CN114147510B (en) | 2021-11-30 | 2021-11-30 | Production tool for gate valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114147510A CN114147510A (en) | 2022-03-08 |
| CN114147510B true CN114147510B (en) | 2022-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111441327.9A Active CN114147510B (en) | 2021-11-30 | 2021-11-30 | Production tool for gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114147510B (en) |
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|---|---|---|---|---|
| EP1726408A1 (en) * | 2005-05-25 | 2006-11-29 | BBG Baugeräte GmbH & Co KG | Hand-held vibration damping pneumatic hammer |
| JP2008105067A (en) * | 2006-10-26 | 2008-05-08 | Sintokogio Ltd | Fixture member for stripping sand from casting |
| CN203140862U (en) * | 2013-03-06 | 2013-08-21 | 高东阀门有限公司 | Processing device of forged steel gate valve gate board guide groove |
| CN204941903U (en) * | 2015-09-11 | 2016-01-06 | 西南石油大学 | A kind of band damping device THE MUD PUMP VALVES |
| CN214264792U (en) * | 2021-01-25 | 2021-09-24 | 昆山顺亨升五金机械有限公司 | Pneumatic centre gripping frock of dysmorphism piece |
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| Publication number | Publication date |
|---|---|
| CN114147510A (en) | 2022-03-08 |
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Address after: No. 89, Xikang South Road, Economic Development Zone, Dafeng District, Yancheng City, Jiangsu Province, 224100 Patentee after: Yancheng Aokai Mingtong Valve Co.,Ltd. Address before: 224100 Dafeng Economic Development Zone, Yancheng City, Jiangsu Province (south of Huanghai Road, west of Daqi Road) Patentee before: Yancheng Aokai Mingtong Valve Co.,Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A production fixture for gate valves Effective date of registration: 20230825 Granted publication date: 20221216 Pledgee: Jiangsu Dafeng Rural Commercial Bank Co.,Ltd. Pledgor: Yancheng Aokai Mingtong Valve Co.,Ltd. Registration number: Y2023980053868 |