CN114542843A - Resistance-free balance type corrugated compensator with external pressure type corrugated compensation - Google Patents
Resistance-free balance type corrugated compensator with external pressure type corrugated compensation Download PDFInfo
- Publication number
- CN114542843A CN114542843A CN202210182356.6A CN202210182356A CN114542843A CN 114542843 A CN114542843 A CN 114542843A CN 202210182356 A CN202210182356 A CN 202210182356A CN 114542843 A CN114542843 A CN 114542843A
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- corrugated compensator
- type corrugated
- corrugated
- arc
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- 238000003466 welding Methods 0.000 claims description 6
- 244000043261 Hevea brasiliensis Species 0.000 claims description 3
- 229920003052 natural elastomer Polymers 0.000 claims description 3
- 229920001194 natural rubber Polymers 0.000 claims description 3
- 230000002349 favourable effect Effects 0.000 abstract description 8
- 230000000149 penetrating effect Effects 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L51/00—Expansion-compensation arrangements for pipe-lines
- F16L51/02—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/024—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Supports For Pipes And Cables (AREA)
Abstract
The invention discloses a resistance-free balance type corrugated compensator with external pressure type corrugated compensation, which comprises a corrugated compensator main body and a flange plate abutted against the input end of the corrugated compensator main body, wherein the end, far away from the corrugated compensator main body, of the flange plate is communicated with an external pipe body; the clamping assembly comprises a supporting rod penetrating through the supporting block, an arc-shaped plate is welded at one end, close to the flange, of the supporting rod, a buffer piece is welded on the top surface of the arc-shaped plate, the top end of the buffer piece abuts against the outer wall of the external pipe body, a limiting block is welded at one end, far away from the arc-shaped plate, of the supporting rod, a spring is sleeved on the outer wall of the supporting rod, and the spring is located between the limiting block and the supporting block; through the centre gripping subassembly that sets up, effectually avoided current device and pipe connection to receive the temperature influence to break away from not hard up, be favorable to carrying out the centre gripping to device and pipe connection department and consolidate, improved device life.
Description
Technical Field
The invention relates to the technical field of corrugated compensators, in particular to a resistance-free balance type corrugated compensator with external pressure type corrugated compensation.
Background
The corrugated compensator belongs to a compensation element, and can absorb the dimensional change of pipelines, conduits, containers and the like caused by expansion with heat and contraction with cold by utilizing the effective telescopic deformation of the corrugated pipe of the working main body, or compensate the axial, transverse and angular displacement of the pipelines, conduits, containers and the like, and can also be used for noise reduction and vibration reduction; in pipelines in the industries of petroleum, chemical engineering, smelting and the like, besides the requirement of corrosion resistance, a corrugated compensator is also commonly used for solving the problem of cold and hot expansion compensation of a medium borne by the pipeline and offsetting installation deviation; and mechanical damage caused by mechanical vibration between the inlet and the outlet of the fan and the pump and the pipeline can be improved through the flexible connection.
The existing corrugated compensator is mostly connected with a flange plate communicated with a pipeline through bolts and nuts when in use, and the bolts and the nuts at the joints of the pipeline and the compensator are loosened to generate gaps to flow out raw materials in the pipeline due to the fact that cold and hot temperatures are transmitted outwards in the pipeline for a long time, so that the non-resistance balance type corrugated compensator with external pressure type corrugated compensation is provided.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the non-resistance balance type corrugated compensator with external pressure type corrugated compensation, and the clamping assembly is arranged, so that the connection between the conventional device and a pipeline is effectively prevented from being separated and loosened under the influence of temperature, the connection between the device and the pipeline is favorably clamped and reinforced, and the service life of the device is prolonged.
In order to solve the technical problems, the invention provides the following technical scheme: the non-resistance balance type corrugated compensator with external pressure type corrugated compensation comprises a corrugated compensator main body and a flange plate abutted to the input end of the corrugated compensator main body, wherein the end, far away from the corrugated compensator main body, of the flange plate is communicated with an external pipe body, a supporting block is welded on the outer wall of the input end of the corrugated compensator main body, and a clamping assembly penetrates through the supporting block in a sliding manner; the centre gripping subassembly is including wearing to locate the inside bracing piece of supporting shoe, the bracing piece is close to ring flange one end welding and has the arc, the top surface welding of arc has the bolster, and the top butt of bolster in external body outer wall, the bracing piece has the stopper apart from the welding of the far away one end of arc, the outer wall cover of bracing piece is equipped with the spring, and the spring is located between stopper and the supporting shoe.
Preferably, the bolster comprises feed-through pipe, buffer spring and sliding tube, the feed-through bottom of the tube welds in arc board top surface, feed-through inner wall sliding connection has the sliding tube, feed-through inner wall parcel has buffer spring, the sliding tube is located directly over buffer spring, and sliding tube top butt in external body outer wall.
Preferably, the wave crest is arranged on the outer wall of the corrugated compensator main body, the wave trough is arranged on the inner wall of the corrugated compensator main body, the clamping block is adhered to the inner wall of the wave trough, and the flow guide plate is adhered to one end, far away from the wave trough, of the clamping block.
Preferably, the guide plate is close to corrugated compensator main part opening both ends and all is equipped with the arc surface, and the material of guide plate is that natural rubber can follow corrugated compensator main part and stretch out and draw back and carry out deformation.
Preferably, the supporting block circumferential array is welded on the outer wall of the corrugated compensator main body, threaded rods penetrate through the threads in the supporting block, and the penetrating ends of the threaded rods penetrate through the supporting block and are connected with nuts through the threads.
Preferably, one end face, close to the supporting rod, of the arc-shaped plate abuts against the outer wall of the flange plate.
Preferably, the extension length of the spring is equal to the length of the support rod, and the spring is wrapped on the outer wall of the support rod and is located between the support block and the limiting block.
Preferably, the limiting block is cylindrical, and the diameter of the limiting block is larger than that of the spring.
Compared with the prior art, the invention can achieve the following beneficial effects:
1. through the arranged clamping assembly, the connection between the conventional device and the pipeline is effectively prevented from being separated and loosened due to the influence of temperature, the connection between the device and the pipeline is clamped and reinforced, and the service life of the device is prolonged;
2. through the centre gripping subassembly that sets up, it is not hard up with its and pipe connection department that effectual avoided current device to produce vibrations when using, is favorable to producing vibrations to the device and cushions, has increased the device functionality.
3. Through the guide plate and the fixture block that set up, effectually avoided the inside trough of current device to block the speed reduction to the raw materials, be favorable to carrying out the drainage to the inside raw materials of access device and reduce and the trough friction, improved the inside raw materials flow efficiency of device.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a structure view of the corrugated compensator shown in FIG. 1 illustrating the separation of the corrugated compensator main body and the external pipe;
FIG. 3 is a schematic view of the internal structure of the clamping assembly of FIG. 1 according to the present invention;
FIG. 4 is a schematic diagram of the overall structure of the present invention;
FIG. 5 is a schematic view of the internal structure of the baffle of FIG. 1 in accordance with the present invention;
wherein: 1. a corrugated compensator body; 2. is externally connected with a pipe body; 3. wave crest; 4. a threaded rod; 5. a support block; 6. a clamping assembly; 7. a trough of a wave; 8. a baffle; 9. a clamping block; 10. a flange plate; 61. a support bar; 62. an arc-shaped plate; 63. a spring; 64. a limiting block; 65. a buffer.
Detailed Description
In order to more clearly explain the overall concept of the invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.
In the description of the present invention, it is to be understood that the terms "central," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the indicated orientations and positional relationships based on the drawings for ease of description and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. In the description of the present specification, reference to the description of the terms "one aspect," "some aspects," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the aspect or example is included in at least one aspect or example of the present invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same aspect or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more aspects or examples.
Example (b):
as shown in fig. 1 to 5, a resistance-free balance type corrugated compensator with external pressure type corrugated compensation comprises a corrugated compensator main body 1 and a flange 10 abutted to an input end of the corrugated compensator main body, wherein one end of the flange 10 far away from the corrugated compensator main body 1 is communicated with an external pipe body 2, a supporting block 5 is welded on the outer wall of the input end of the corrugated compensator main body 1, and a clamping assembly 6 is slidably arranged in the supporting block 5; the clamping assembly 6 comprises a supporting rod 61 penetrating through the supporting block 5, an arc-shaped plate 62 is welded at one end, close to the flange plate 10, of the supporting rod 61, a buffering piece 65 is welded on the top surface of the arc-shaped plate 62, the top end of the buffering piece 65 abuts against the outer wall of the external pipe body 2, a limiting block 64 is welded at one end, far away from the arc-shaped plate 62, of the supporting rod 61, a spring 63 is sleeved on the outer wall of the supporting rod 61, and the spring 63 is located between the limiting block 64 and the supporting block 5;
the working principle is as follows: when a worker connects the external pipe body 2 with the input end of the corrugated compensator main body 1 through the flange 10 communicated with the external pipe body 2, the worker firstly pulls the arc plate 62 in the clamping assembly 6 to enable the arc plate 62 to move to drive the supporting rod 61 welded with the arc plate to move along with the arc plate, as shown in fig. 3, the supporting rod 61 moves to drive the limiting block 64 to move and extrude the spring 63 to contract, at the moment, the flange 10 drives the external pipe body 2 communicated with the flange to move to be attached to the input end of the corrugated compensator main body 1, then the supporting rod 61 is loosened, at the moment, the spring 63 rebounds to drive the supporting rod 61 to move and extrude and clamp the input end of the corrugated compensator main body 1, the worker then passes a bolt through the attaching part of the flange 10 and the corrugated compensator main body 1 and screws a nut to connect, the separation and looseness of the existing device and pipeline connection caused by temperature is effectively avoided, and the clamping and the connection part of the device and the pipeline is favorable for clamping and reinforcing, the service life of the device is prolonged.
As shown in fig. 3, the buffer member 65 is composed of a feed-through tube, a buffer spring and a sliding tube, the bottom end of the feed-through tube is welded on the top surface of the arc plate 62, the inner wall of the feed-through tube is connected with the sliding tube in a sliding manner, the buffer spring is wrapped on the inner wall of the feed-through tube, the sliding tube is located right above the buffer spring, and the top end of the sliding tube abuts against the outer wall of the external pipe body 2; when the device produced vibrations, the butt received the shaking force in the sliding tube of 2 outer walls of external pipe body and moved extrusion buffer spring along the piercing tube inner wall downwards and contract and kick-backed and offset the shaking force, and the effectual current device that has avoided produces vibrations when using and is not hard up its and pipe connection department, is favorable to producing vibrations to the device and cushions, has increased the device functionality.
As shown in fig. 4 and 5, a wave crest 3 is arranged on the outer wall of the corrugated compensator main body 1, a wave trough 7 is arranged on the inner wall of the corrugated compensator main body 1, a fixture block 9 is adhered to the inner wall of the wave trough 7, and a flow guide plate 8 is adhered to one end of the fixture block 9, which is far from the wave trough 7; specifically, the method comprises the following steps: arc surfaces are arranged at two ends of the guide plate 8 close to the opening of the corrugated compensator main body 1, and the guide plate 8 is made of natural rubber and can deform along with the expansion and contraction of the corrugated compensator main body 1; when 1 inside raw materials of corrugated expansion ware main part flow, at first contact guide plate 8 is close to the arc surface that 1 opening both ends of corrugated expansion ware main part set up, flow to 8 top surfaces of guide plate following the arc surface drainage, avoid the raw materials to receive its inside trough 7 when 1 inside of corrugated expansion ware main part flows and block the friction many times, effectually avoided the inside trough 7 of current device to block the raw materials and slow down, be favorable to carrying out the drainage and reduce and rub with trough 7 to the inside raw materials of access device, the inside raw materials flow efficiency of device has been improved.
As shown in fig. 1, the supporting blocks 5 are welded on the outer wall of the corrugated compensator main body 1 in a circumferential array, the threaded rods 4 are threaded through the supporting blocks 5, and the threaded rods 4 are threaded through the supporting blocks 5 and the penetrating ends thereof are threaded with nuts; through setting up threaded rod 4 of wearing to establish at the equal screw thread in inside of supporting shoe 5 to run through supporting shoe 5 at 4 screw threads of threaded rod and wear out the equal threaded connection nut of end, staff's accessible is twisted adjusting nut and is twisted 4 positions of threaded rod and extend length to ripple compensator main part 1 and prescribe a limit to.
As shown in fig. 1 and 3, one end surface of the arc plate 62 close to the support rod 61 abuts against the outer wall of the flange plate 10; through being close to bracing piece 61 one end face butt in ring flange 10 outer wall with arc 62, be favorable to spring 63 to kick-back and promote arc 62 and remove when arc 62 with ring flange 10 centre gripping between arc 62 and corrugated compensator main part 1.
As shown in fig. 3, the extension length of the spring 63 is equal to the length of the support rod 61, and the spring 63 is wrapped on the outer wall of the support rod 61 and located between the support block 5 and the limit block 64; the spring 63 is wrapped on the outer wall of the supporting rod 61 and is positioned between the supporting block 5 and the limiting block 64, and the extending length of the spring 63 is equal to the length of the supporting rod 61, so that the flange plate 10 can be tightly clamped by pulling the arc-shaped plate 62 when the spring 63 rebounds.
As shown in fig. 3, the stopper 64 is cylindrical, and the diameter of the stopper 64 is larger than that of the spring 63; the diameter of the cylindrical limiting block 64 is larger than that of the spring 63, so that the cylindrical limiting block 64 is favorable for limiting the spring 63, and the spring 63 is prevented from being separated from the space between the supporting block 5 and the limiting block 64.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a non-resistance balanced type corrugated compensator with external pressure type corrugated compensation, includes corrugated compensator main part (1), rather than ring flange (10) of input butt, ring flange (10) are apart from corrugated compensator main part (1) one end far away and are linked together external body (2), its characterized in that: the outer wall of the input end of the corrugated compensator main body (1) is welded with a supporting block (5), and a clamping component (6) penetrates through the supporting block (5) in a sliding manner;
centre gripping subassembly (6) is including wearing to locate bracing piece (61) of supporting shoe (5) inside, bracing piece (61) are close to ring flange (10) one end welding and have arc (62), the top surface welding of arc (62) has bolster (65), and the top butt of bolster (65) in external body (2) outer wall, bracing piece (61) have stopper (64) apart from arc (62) one end welding far away, the outer wall cover of bracing piece (61) is equipped with spring (63), and spring (63) are located between stopper (64) and supporting shoe (5).
2. A resistance-free balanced type corrugated compensator with external pressure type corrugated compensation as set forth in claim 1, wherein: bolster (65) comprise piercing tube, buffer spring and slip pipe, piercing tube bottom weld in arc (62) top surface, piercing tube inner wall sliding connection has the slip pipe, piercing tube inner wall parcel has buffer spring, the slip pipe is located buffer spring directly over, and slip pipe top butt in external body (2) outer wall.
3. A resistance-free balanced type corrugated compensator with external pressure type corrugated compensation as set forth in claim 1, wherein: the corrugated compensator is characterized in that a wave crest (3) is arranged on the outer wall of the corrugated compensator main body (1), a wave trough (7) is arranged on the inner wall of the corrugated compensator main body (1), a clamping block (9) is adhered to the inner wall of the wave trough (7), and a guide plate (8) is adhered to one end, far away from the wave trough (7), of the clamping block (9).
4. A resistance-free balanced type corrugated compensator with external pressure type corrugated compensation according to claim 3, wherein: the guide plate (8) is close to the opening of the corrugated compensator main body (1) and is provided with arc surfaces at two ends, and the guide plate (8) is made of natural rubber and can stretch and retract along with the corrugated compensator main body (1) to deform.
5. A resistance-free balanced type corrugated compensator with external pressure type corrugated compensation as set forth in claim 1, wherein: supporting shoe (5) circumference array welds in corrugated compensator main part (1) outer wall, threaded rod (4) are worn to be equipped with by the inside uniform thread of supporting shoe (5), and threaded rod (4) screw thread runs through supporting shoe (5) its equal threaded connection nut of end of wearing out.
6. A resistance-free balanced type ripple compensator with external pressure type ripple compensation according to claim 1, wherein: one end face of the arc-shaped plate (62) close to the support rod (61) is abutted against the outer wall of the flange plate (10).
7. A resistance-free balanced type corrugated compensator with external pressure type corrugated compensation as set forth in claim 1, wherein: the extension length of the spring (63) is equal to the length of the support rod (61), and the spring (63) is wrapped on the outer wall of the support rod (61) and is positioned between the support block (5) and the limit block (64).
8. A resistance-free balanced type corrugated compensator with external pressure type corrugated compensation as set forth in claim 1, wherein: the limiting block (64) is cylindrical, and the diameter of the limiting block (64) is larger than that of the spring (63).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210182356.6A CN114542843B (en) | 2022-02-25 | 2022-02-25 | Non-resistance balance type ripple compensator with external pressure type ripple compensation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210182356.6A CN114542843B (en) | 2022-02-25 | 2022-02-25 | Non-resistance balance type ripple compensator with external pressure type ripple compensation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114542843A true CN114542843A (en) | 2022-05-27 |
| CN114542843B CN114542843B (en) | 2023-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210182356.6A Active CN114542843B (en) | 2022-02-25 | 2022-02-25 | Non-resistance balance type ripple compensator with external pressure type ripple compensation |
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| CN (1) | CN114542843B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2433498Y (en) * | 2000-08-01 | 2001-06-06 | 上海国电燃机技术工程有限公司 | Anti-sand bellow expansion joint |
| DE102013004015A1 (en) * | 2013-03-08 | 2014-09-11 | Möller Werke GmbH | Length-adjustable tubular element |
| CN209781971U (en) * | 2019-04-15 | 2019-12-13 | 广东首隆管道科技有限公司 | Red copper clamp pressing type connecting pipe fitting |
| CN210266374U (en) * | 2019-07-30 | 2020-04-07 | 河北龙盛管道装备有限公司 | Corrugated compensator |
| CN212004458U (en) * | 2019-12-31 | 2020-11-24 | 上海思探博机电设备有限公司 | Check valve convenient to maintain for air compressor |
| CN212536827U (en) * | 2020-04-28 | 2021-02-12 | 朝阳百盛钛业股份有限公司 | Fastening structure for vacuum pipeline of faucet |
| CN213064877U (en) * | 2020-06-16 | 2021-04-27 | 辽宁省石油化工规划设计院有限公司 | Petrochemical pipeline support |
| CN213117989U (en) * | 2020-08-31 | 2021-05-04 | 内蒙古东蛟电力装备有限公司 | Wear-resisting leak protection formula compensator |
| CN214425350U (en) * | 2021-03-10 | 2021-10-19 | 林镇海 | A pipeline for town sewage treatment |
-
2022
- 2022-02-25 CN CN202210182356.6A patent/CN114542843B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2433498Y (en) * | 2000-08-01 | 2001-06-06 | 上海国电燃机技术工程有限公司 | Anti-sand bellow expansion joint |
| DE102013004015A1 (en) * | 2013-03-08 | 2014-09-11 | Möller Werke GmbH | Length-adjustable tubular element |
| CN209781971U (en) * | 2019-04-15 | 2019-12-13 | 广东首隆管道科技有限公司 | Red copper clamp pressing type connecting pipe fitting |
| CN210266374U (en) * | 2019-07-30 | 2020-04-07 | 河北龙盛管道装备有限公司 | Corrugated compensator |
| CN212004458U (en) * | 2019-12-31 | 2020-11-24 | 上海思探博机电设备有限公司 | Check valve convenient to maintain for air compressor |
| CN212536827U (en) * | 2020-04-28 | 2021-02-12 | 朝阳百盛钛业股份有限公司 | Fastening structure for vacuum pipeline of faucet |
| CN213064877U (en) * | 2020-06-16 | 2021-04-27 | 辽宁省石油化工规划设计院有限公司 | Petrochemical pipeline support |
| CN213117989U (en) * | 2020-08-31 | 2021-05-04 | 内蒙古东蛟电力装备有限公司 | Wear-resisting leak protection formula compensator |
| CN214425350U (en) * | 2021-03-10 | 2021-10-19 | 林镇海 | A pipeline for town sewage treatment |
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| Publication number | Publication date |
|---|---|
| CN114542843B (en) | 2023-11-10 |
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