CN216158546U - Telescopic connecting device for single-wall corrugated pipe - Google Patents
Telescopic connecting device for single-wall corrugated pipe Download PDFInfo
- Publication number
- CN216158546U CN216158546U CN202121666838.6U CN202121666838U CN216158546U CN 216158546 U CN216158546 U CN 216158546U CN 202121666838 U CN202121666838 U CN 202121666838U CN 216158546 U CN216158546 U CN 216158546U
- Authority
- CN
- China
- Prior art keywords
- corrugated pipe
- connection
- telescopic
- reinforcing
- connecting body
- 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
Images
Landscapes
- Lining And Supports For Tunnels (AREA)
- Bridges Or Land Bridges (AREA)
- Joints Allowing Movement (AREA)
Abstract
The utility model discloses a telescopic connecting device for a single-wall corrugated pipe, which is provided with a first connecting body and a second connecting body, wherein the first connecting body is provided with a first connector, a first connecting body transition section, a first connecting body telescopic section and a first connecting end, the second connecting body is provided with a second connector, a second connecting body transition section, a second connecting body telescopic section and a second connecting end, the first connecting body telescopic section and the second connecting body telescopic section are telescopically adjusted according to the length of the corrugated pipe to be repaired so as to meet the repair of the corrugated pipes with different damaged lengths, the connecting device is also provided with a first reinforcing connecting piece and a second reinforcing connecting piece, the connecting tightness between the first connecting end and the corrugated pipe and the connection between the second connecting end and the corrugated pipe is further enhanced, the telescopic structure is adopted, the connection repair of the single-wall corrugated pipe with different damaged lengths can be met, and the structure is simple, the connection repairing effect is good, and the practicability is strong.
Description
Technical Field
The utility model relates to the technical field of corrugated pipes and related accessories, in particular to a telescopic connecting device for a single-wall corrugated pipe.
Background
The corrugated pipe mainly comprises a metal corrugated pipe, a corrugated expansion joint, a corrugated heat exchange pipe, a diaphragm capsule, a metal hose and the like. The metal corrugated pipe is mainly applied to the effects of compensating the thermal deformation of a pipeline, damping, absorbing the settlement deformation of the pipeline and the like, and is widely applied to the industries of petrifaction, instruments, aerospace, chemical industry, electric power, cement, metallurgy and the like. The corrugated pipe made of other materials such as plastics has irreplaceable effects in the fields of medium conveying, electric power threading, machine tools, household appliances and the like.
The corrugated pipe is easy to break due to the particularity of pipe materials in the using process, the repairing modes of the broken corrugated pipe are the same and different due to the different breaking degrees, most of the existing single-wall corrugated pipe damage repairing methods adopt fixed connectors or connecting structures, but the connecting structures with fixed lengths cannot meet the requirements of repairing different damage lengths of the single-wall corrugated pipe.
SUMMERY OF THE UTILITY MODEL
The utility model aims to: aiming at the technical problems existing in the prior art that fixed-length connectors or connecting structures are adopted for repairing different damaged lengths of the single-wall corrugated pipe, the utility model provides the telescopic connecting device for the single-wall corrugated pipe.
The technical scheme adopted by the utility model is as follows: the retractable connecting device for the single-wall corrugated pipe is provided with a first connecting body and a second connecting body, wherein the first connecting body is provided with a first connecting head, one end of the first connecting head is provided with a first connecting body transition section, one end, far away from the first connecting head, of the first connecting body transition section is provided with a first connecting body stretching section, the first connecting body stretching section can be stretched and adjusted according to the length of the corrugated pipe to be repaired as required so as to meet the repair of corrugated pipes with different damaged lengths, one end, far away from the first connecting body transition section, of the first connecting body stretching section is provided with a first connecting end, the first connecting end is used for being connected with the repaired end of the damaged corrugated pipe, and the first connecting end is set to be corrugated with concave and convex grooves and is identical to the structure of the corrugated pipe.
The second connector is provided with a second connector, the outer surface of the second connector is provided with an external thread, the thread is matched with an internal thread arranged on the inner wall of the first connector, the second connector is connected with the first connector through the external thread and the internal thread, one end of the second connector is provided with a second connector transition section, one end of the second connector transition section, which is far away from the second connector, is provided with a second connector expansion section, the second connector expansion section can be telescopically adjusted according to the length of the corrugated pipe to be repaired so as to meet the repair of corrugated pipes with different damaged lengths, one end of the second connector expansion section, which is far away from the second connector transition section, is provided with a second connecting end, the second connecting end is used for being connected with the repair end of the damaged corrugated pipe, and the second connecting end is provided with a concave groove and a convex groove, the same as the bellows.
Further, the first connecting body transition section is arranged in a corrugated shape the same as the corrugated pipe.
Further, the second connecting body transition section is provided in a bellows shape identical to the bellows.
Preferably, the groove portion of the first connection end is provided with a first reinforcing connection piece, the first reinforcing connection piece is provided with a reinforcing connection plate, the reinforcing connection plate is fixedly arranged on the bottom surface of the groove of the first connection end, the first reinforcing connection piece is further provided with a connection cap, the bottom surface of the connection cap is provided with a connection rod, the connection rod is provided with a connection thread, when the corrugated pipe connector is used, the first reinforcing connection plate of the first reinforcing connection piece is fixedly arranged on the bottom surface of the groove of the first connection end, an internal thread matched with the first connection thread is arranged inside the first reinforcing connection plate, and the first connection cap is rotated to enable the first connection rod to penetrate through the first reinforcing connection plate to contact the surface of the groove of the first connection end, so that the first connection end and the corrugated pipe are connected more tightly through continuous rotation of the first connection cap.
Preferably, the groove portions of the second connecting end are provided with second reinforcing connecting pieces, the second reinforcing connecting pieces are the same as the first reinforcing connecting pieces in structure, the second reinforcing connecting pieces are also provided with second connecting caps, second connecting rods, second connecting threads and second reinforcing connecting plates, the second reinforcing connecting plates are fixedly arranged on the groove portions of the second connecting end, and the second connecting rods are abutted to the groove surfaces of the second connecting end by screwing the second connecting caps, so that gaps between the second connecting end and the corrugated pipe connecting portion are further reduced, and the fastening of the second connecting end and the corrugated pipe connecting portion is further enhanced.
The telescopic connecting device for the single-wall corrugated pipe works according to the following principle: when the corrugated pipe is damaged and needs to be repaired, a first connecting body of the connecting device is connected with one end of the corrugated pipe, a second connecting body is connected with the other end of the corrugated pipe, when the corrugated pipe is damaged and needs to be repaired, a groove part of the end of the corrugated pipe needing to be repaired is placed on a sealing ring, the first connecting body is connected with one end of the corrugated pipe through a first connecting end, the second connecting body is connected with the other repaired end of the corrugated pipe through a second connecting end, as a preferable mode, the groove parts of the first connecting end are provided with first reinforcing connecting pieces, the first connecting cap is rotated to enable the first connecting rod to penetrate through the first reinforcing connecting plates to be in contact with the groove surface of the first connecting end, the first connecting end and the corrugated pipe are connected more tightly through continuously rotating the first connecting cap, similarly, the second connecting rod is enabled to be in contact with the groove surface of the second connecting end through screwing the second connecting cap, so as to further reduce the interval between the second link and connecting portion of corrugated pipe, further strengthen the fastening of the second link and connecting portion of corrugated pipe; when the damaged length of the corrugated pipe is long, the first connector telescopic section and the second connector telescopic section are respectively stretched and adjusted to meet the damaged length of the corrugated pipe, then the connection is repaired through the method, after the first connector and the second connector are respectively connected with the two damaged ends of the corrugated pipe, the first connector and the second connector are connected through screwing, and then the repair connection operation of the connecting device and the corrugated pipe is completed.
Compared with the prior art, the utility model has the beneficial effects that:
(1) the utility model provides a telescopic connecting device for a single-wall corrugated pipe, which aims to solve the technical problems that fixed-length connectors or connecting structures are adopted for repairing different damaged lengths of the single-wall corrugated pipe;
(2) in the telescopic connecting device for the single-wall corrugated pipe, the first connecting end and the second connecting end are both arranged in a corrugated shape with concave and convex grooves and are matched with the corrugated shape of the corrugated pipe, and the connecting part of the connecting end and the corrugated pipe is more attached and the integral connection is more compact and stable due to the structural design;
(3) in the telescopic connecting device for the single-wall corrugated pipe, the reinforcing connecting piece is arranged, and the connecting rod is abutted to the surface of the groove of the connecting end by screwing the connecting cap in the reinforcing connecting piece, so that the gap between the connecting end and the connecting part of the corrugated pipe is further reduced, and the connecting tightness between the second connecting end and the connecting part of the corrugated pipe is further enhanced;
(4) the telescopic connecting device for the single-wall corrugated pipe solves the problem of connection repair of the single-wall corrugated pipe in different damaged lengths, further saves replacement cost of large-area single-wall corrugated pipe damage, and is simple in structure and high in practicability.
Drawings
FIG. 1 is a schematic view of a collapsible joint assembly for a single wall bellows of the present invention;
FIG. 2 is a schematic view of a telescopic connection device for a single-wall corrugated pipe according to the present invention in use in connection with a corrugated pipe;
FIG. 3 is a schematic cross-sectional view of a reinforcing coupler of a telescopic coupler for a single-wall bellows according to the present invention;
labeled as: 1-a first connecting body, 11-a first connecting head, 12-a first connecting body transition section, 13-a first connecting body expansion section, 14-a first connecting end, 15-a first reinforcing connecting piece, 151-a first connecting cap, 152-a first connecting rod, 153-a first connecting thread, 154-a first reinforcing connecting plate, 2-a second connecting body, 21-a second connecting head, 22-a second connecting body transition section, 23-a second connecting body expansion section, 24-a second connecting end, 25-a second reinforcing connecting piece, 3-a corrugated pipe body, 31-a sealing ring.
Detailed Description
The present invention will be described in further detail in order to make the objects, technical solutions and advantages of the present invention more apparent.
Example 1
A telescopic connecting device for a single-wall corrugated pipe is provided with a first connecting body 1 and a second connecting body 2, wherein the first connecting body 1 is provided with a first connecting head 11, one end of the first connecting head 11 is provided with a first connecting body transition section 12, the first connecting body transition section 12 and the shape of the first connecting body transition section are set to be the same as those of the corrugated pipe, one end of the first connecting body transition section 12, which is far away from the first connecting head 11, is provided with a first connecting body telescopic section 13, the first connecting body telescopic section 13 can be telescopic according to the length of the corrugated pipe 3 to be repaired, the repair of the corrugated pipes 3 with different damaged lengths can be met, one end of the first connecting body telescopic section 13, which is far away from the first connecting body transition section 12, is provided with a first connecting end 14, the first connecting end 14 is used for being connected with the repair end of the damaged corrugated pipe 3, the first connecting end 14 is set to be concave, The corrugation of the convex groove is the same as the structure of the corrugated pipe 3.
The second connector 2 is provided with a second connector 21, the outer surface of the second connector 21 is provided with a thread 211, the thread 211 is matched with an internal thread arranged on the inner wall of the first connector 11, one end of the second connector 21 is provided with a second connector transition section 22, the second connector transition section 22 is in a corrugated pipe shape identical to the corrugated pipe 3, one end of the second connector transition section 22 far away from the second connector 21 is provided with a second connector expansion section 23, the second connector expansion section 23 can expand and contract according to the length of the corrugated pipe 3 required to be repaired, the repair of the corrugated pipes 3 with different damaged lengths is met, one end of the second connector expansion section 23 far away from the second connector transition section 22 is provided with a second connecting end 24, the second connecting end 24 is used for being connected with the repair end of the damaged corrugated pipe 3, the second connecting end 24 is in a corrugated shape with concave and convex grooves, the same structure as the bellows 3.
The telescopic connecting device for the single-wall corrugated pipe works according to the following principle: when the corrugated pipe 3 is damaged and needs to be repaired, the first connecting body 1 of the connecting device is connected with one end of the corrugated pipe 3, the first connecting body 2 is connected with one end of the corrugated pipe 3, when the corrugated pipe 3 is damaged and needs to be repaired, the groove part of the end of the corrugated pipe 3 needing to be repaired is placed in the sealing ring 31, the first connecting body 1 is connected with one end of the corrugated pipe 3 through the first connecting end 14, the second connecting body 2 is connected with the other repaired end of the corrugated pipe 3 through the second connecting end 24, when the damaged length of the corrugated pipe 3 is longer, the first connecting body telescopic section 13 and the second connecting body telescopic section 23 are respectively extended to meet the damaged length of the corrugated pipe 3, the repairing connection is carried out through the method, after the first connecting body 1 and the second connecting body 2 are respectively connected with the two damaged ends of the corrugated pipe 3, the first connecting body 11 is connected with the second connecting body 21 through screwing, i.e. the repair connection of the connection device to the bellows 3 is completed.
Example 2
A telescopic connecting device for a single-wall corrugated pipe is provided with a first connecting body 1 and a second connecting body 2, wherein the first connecting body 1 is provided with a first connecting head 11, one end of the first connecting head 11 is provided with a first connecting body transition section 12, the first connecting body transition section 12 and the shape of the first connecting body transition section are set to be the same as those of the corrugated pipe, one end of the first connecting body transition section 12, which is far away from the first connecting head 11, is provided with a first connecting body telescopic section 13, the first connecting body telescopic section 13 can be telescopic according to the length of the corrugated pipe 3 to be repaired, the repair of the corrugated pipes 3 with different damaged lengths can be met, one end of the first connecting body telescopic section 13, which is far away from the first connecting body transition section 12, is provided with a first connecting end 14, the first connecting end 14 is used for being connected with the repair end of the damaged corrugated pipe 3, the first connecting end 14 is set to be concave, The corrugation of the convex groove is the same as the structure of the corrugated pipe 3, the groove parts of the first connecting end 14 are all provided with the first reinforcing connecting piece 15, the first reinforcing connecting piece 15 is provided with the first reinforcing connecting plate 154, the first reinforcing connecting plate 154 is fixedly arranged on the bottom surface of the groove of the first connecting end 14, the first reinforcing connecting piece 15 is also provided with the first connecting cap 151, the bottom surface of the first connecting cap 151 is provided with the first connecting rod 152, the first connecting rod 152 is provided with the first connecting thread 153, when in use, the first reinforcing connecting plate 154 of the first reinforcing connecting piece 15 is fixedly arranged on the bottom surface of the groove of the first connecting end 14, the inside of the first reinforcing connecting plate 154 is provided with the internal thread matched with the first connecting thread 153, the first connecting cap 151 is rotated, so that the first connecting rod 152 passes through the first reinforcing connecting plate 154 to be contacted with the groove surface of the first connecting end 14, and by continuously rotating the first connecting cap 151, so that the first connection end 14 is connected more firmly with the corrugated tube 3.
The second connector 2 is provided with a second connector 21, the outer surface of the second connector 21 is provided with a thread 211, the thread 211 is matched with an internal thread arranged on the inner wall of the first connector 11, one end of the second connector 21 is provided with a second connector transition section 22, the second connector transition section 22 is in a corrugated pipe shape identical to the corrugated pipe 3, one end of the second connector transition section 22 far away from the second connector 21 is provided with a second connector expansion section 23, the second connector expansion section 23 can expand and contract according to the length of the corrugated pipe 3 required to be repaired, the repair of the corrugated pipes 3 with different damaged lengths is met, one end of the second connector expansion section 23 far away from the second connector transition section 22 is provided with a second connecting end 24, the second connecting end 24 is used for being connected with the repair end of the damaged corrugated pipe 3, the second connecting end 24 is in a corrugated shape with concave and convex grooves, the structure of the corrugated pipe 3 is the same, the groove part of the second connecting end 24 is provided with a second reinforcing connecting piece 25, the second reinforcing connecting piece 25 is the same as the structure of the first reinforcing connecting piece 15, the second reinforcing connecting piece 25 also comprises a second connecting cap, a second connecting rod, a second connecting thread and a second reinforcing connecting plate, the second reinforcing connecting plate is fixedly arranged on the groove part of the second connecting end 24, the second connecting cap is screwed to enable the second connecting rod to abut against the groove surface of the second connecting end 24, so that the gap between the second connecting end 24 and the corrugated pipe 3 connecting part is further reduced, and the fastening of the second connecting end 24 and the corrugated pipe 3 connecting part is further enhanced.
The telescopic connecting device for the single-wall corrugated pipe works according to the following principle: when the corrugated pipe 3 is damaged and needs to be repaired, the first connecting body 1 of the connecting device is connected with one end of the corrugated pipe 3, the first connecting body 2 is connected with one end of the corrugated pipe 3, when the corrugated pipe 3 is connected, the groove part of the end of the corrugated pipe 3 needing to be repaired is placed on the sealing ring 31, the first connecting body 1 is connected with one end of the corrugated pipe 3 through the first connecting end 14, the second connecting body 2 is connected with the other repaired end of the corrugated pipe 3 through the second connecting end 24, the groove parts of the first connecting end 14 are all provided with the first reinforcing connecting piece 15, the connecting cap 151 is rotated, so that the connecting rod 152 penetrates through the reinforcing connecting plate 154 and abuts against the groove surface of the first connecting end 14, the first connecting end 14 and the corrugated pipe 3 are connected more tightly by rotating the connecting cap 151 continuously, and similarly, the second connecting rod abuts against the groove surface of the second connecting end 24 by the second connecting cap, therefore, the gap between the second connecting end 24 and the connecting part of the corrugated pipe 3 is further reduced, the fastening of the connecting part of the second connecting end 24 and the corrugated pipe 3 is further enhanced, when the damaged length of the corrugated pipe 3 is longer, the first connecting body telescopic section 13 and the second connecting body telescopic section 23 are respectively extended to meet the damaged length of the corrugated pipe 3, then the connection is repaired by the method, after the first connecting body 1 and the second connecting body 2 are respectively connected with the damaged two ends of the corrugated pipe 3, the first connecting body 11 and the second connecting body 21 are connected by screwing, and then the repairing connection operation of the connecting device and the corrugated pipe 3 is completed.
The above embodiments only express the specific implementation mode of the present application, and the description is specific and detailed, it should be noted that, for those skilled in the art, many variations and modifications can be made without departing from the technical solution idea of the present application, and these embodiments all belong to the protection scope of the present application.
Claims (9)
1. A telescopic connecting device for a single-wall corrugated pipe is characterized by being provided with a first connecting body (1) and a second connecting body (2), wherein the first connecting body (1) is provided with a first connecting head (11), one end of the first connecting head (11) is provided with a first connecting body transition section (12), one end of the first connecting body transition section (12) far away from the first connecting head (11) is provided with a first connecting body telescopic section (13), one end of the first connecting body telescopic section (13) far away from the first connecting body transition section (12) is provided with a first connecting end (14), the second connecting body (2) is provided with a second connecting head (21), one end of the second connecting head (21) is provided with a second connecting body transition section (22), and one end of the second connecting body transition section (22) far away from the second connecting head (21) is provided with a second connecting body telescopic section (23), and a second connecting end (24) is arranged at one end, far away from the second connecting body transition section (22), of the second connecting body telescopic section (23).
2. Telescopic connection device for a single-walled bellows according to claim 1, characterised in that said first telescopic section (13) of the connection body is telescopically adjusted according to the length of the bellows (3) to be repaired, so as to satisfy the repair of bellows (3) of different damaged lengths.
3. The telescopic connection device for the single-wall corrugated pipe as claimed in claim 1, wherein the telescopic section (23) of the second connection body is adjusted in telescopic length according to the length of the corrugated pipe (3) to be repaired, so as to meet the repair of corrugated pipes (3) with different damaged lengths.
4. Telescopic connection for a single-walled bellows according to claim 1, characterised in that the first connection body transition (12) and the second connection body transition (22) are each provided in the form of a bellows having the same shape as the bellows (3).
5. Telescopic connection for a single-walled bellows according to claim 1, characterised in that the first (14) and second (24) connection ends are provided with a corrugated shape with concave and convex grooves matching the corrugated shape of the bellows (3).
6. A telescopic connection for single-walled corrugated pipes according to claim 5, characterized in that the recessed portions of the first connection end (14) are each provided with a first reinforcing connector (15), the first reinforcing connectors (15) being used to reinforce the fastening of the connection between the first connection end (14) and the corrugated pipe (3).
7. The telescopic connection device for the single-wall corrugated pipe as claimed in claim 6, wherein the first reinforcing connecting piece (15) is provided with a first reinforcing connecting plate (154), the first reinforcing connecting plate (154) is fixedly arranged on the bottom surface of the groove of the first connecting end (14), the first reinforcing connecting piece (15) is further provided with a first connecting cap (151), the bottom surface of the first connecting cap (151) is provided with a first connecting rod (152), the first connecting rod (152) is provided with a first connecting thread (153), the first reinforcing connecting plate (154) is internally provided with an internal thread matched with the first connecting thread (153), the first connecting cap (151) is rotated, the first connecting rod (152) passes through the first reinforcing connecting plate (154) to contact the groove surface of the first connecting end (14), and by continuously rotating the first connecting cap (151), the connection tightness between the first connection end (14) and the corrugated pipe (3) is enhanced.
8. The telescopic connection device for the single-wall corrugated pipe as claimed in claim 5, wherein the recessed portions of the second connection end (24) are provided with second reinforcing connecting pieces (25), the second reinforcing connecting pieces (25) are structurally arranged the same as the first reinforcing connecting pieces (15), the second reinforcing connecting pieces (25) comprise second connecting caps, second connecting rods, second connecting threads and second reinforcing connecting plates, and the second connecting rods abut against the recessed surfaces of the second connection end (24) by screwing the second connecting caps, so that the gap between the second connection end (24) and the connection portion of the corrugated pipe (3) is further reduced, and the connection tightness between the second connection end (24) and the corrugated pipe (3) is further enhanced.
9. Telescopic connection device for single-walled bellows according to claim 1, characterised in that the external surface of the second connector (21) is provided with external threads (211), said external threads (211) matching the internal threads provided on the internal wall of the first connector (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121666838.6U CN216158546U (en) | 2021-07-21 | 2021-07-21 | Telescopic connecting device for single-wall corrugated pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121666838.6U CN216158546U (en) | 2021-07-21 | 2021-07-21 | Telescopic connecting device for single-wall corrugated pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216158546U true CN216158546U (en) | 2022-04-01 |
Family
ID=80836582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121666838.6U Active CN216158546U (en) | 2021-07-21 | 2021-07-21 | Telescopic connecting device for single-wall corrugated pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216158546U (en) |
-
2021
- 2021-07-21 CN CN202121666838.6U patent/CN216158546U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216158546U (en) | Telescopic connecting device for single-wall corrugated pipe | |
| CN2436751Y (en) | Sealing device for underground chamber of direct buried hot supply pipeline | |
| CN201875312U (en) | Lap welding branch pipe threaded joint sealed by O-shaped rubber sealing ring | |
| CN214889567U (en) | Telescopic pipeline connector | |
| CN203430739U (en) | Natural gas compressor buffer tank pipe connecting structure | |
| CN213512507U (en) | Sleeve type cooler outer pipe clamp type pipe joint | |
| CN208670409U (en) | A kind of Pressuretight sylphon bellows compensator | |
| CN210950377U (en) | Sealing assembly for expansion joint | |
| CN216555923U (en) | High-temperature and high-pressure combined expansion joint for steam pipeline | |
| CN208804365U (en) | Flange arrangement | |
| CN208011114U (en) | A kind of spherical shape corrugated expansion joint | |
| CN2610202Y (en) | Elastic joint | |
| CN216344459U (en) | Internal expanding joint for repairing pipe connection | |
| CN2260304Y (en) | Head type tube sleeve heat-exchanger | |
| CN207777787U (en) | A kind of recoverable compound pipeline complex pipeline | |
| CN204459527U (en) | For the connection seal arrangement of vacuum pipe | |
| CN210196748U (en) | Composite pipe rubber expansion joint | |
| CN201242015Y (en) | Pipeline connector | |
| CN213089121U (en) | Epoxy glass fiber reinforced plastic flange | |
| CN219692594U (en) | Powder tube three-dimensional metal ripple compensator | |
| CN218935657U (en) | Antistatic compensator | |
| CN217736567U (en) | Light straight-through pipe joint | |
| CN213299213U (en) | Compensator convenient to split | |
| CN210716405U (en) | Quick connector | |
| CN219140142U (en) | Flange connection explosion-proof hose |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |