CN208190216U - Sealing ring and wire or cable terminal box - Google Patents

Sealing ring and wire or cable terminal box Download PDF

Info

Publication number
CN208190216U
CN208190216U CN201820114159.XU CN201820114159U CN208190216U CN 208190216 U CN208190216 U CN 208190216U CN 201820114159 U CN201820114159 U CN 201820114159U CN 208190216 U CN208190216 U CN 208190216U
Authority
CN
China
Prior art keywords
sealing
sealing ring
serrated face
box cover
cable
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
Application number
CN201820114159.XU
Other languages
Chinese (zh)
Inventor
张仕辉
李柏林
邓金表
孙志锋
罗婉霞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Guangri Electricity Facilities Co Ltd
Original Assignee
Guangzhou Guangri Electricity Facilities Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangzhou Guangri Electricity Facilities Co Ltd filed Critical Guangzhou Guangri Electricity Facilities Co Ltd
Priority to CN201820114159.XU priority Critical patent/CN208190216U/en
Application granted granted Critical
Publication of CN208190216U publication Critical patent/CN208190216U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Cable Accessories (AREA)

Abstract

The utility model relates to a kind of sealing ring and wire or cable terminal boxes, sealing ring includes flexible weatherstrip body, one end of the weatherstrip body is equipped with the first serrated face, the other end of the weatherstrip body is equipped with the second serrated face coincideing with the first serrated face, when the first serrated face and the second serrated face coincide, the weatherstrip body forms sealing ring, and first serrated face and the second serrated face are serrated in the projection of sealing ring circumferential direction;Solve the problems, such as installation inconvenience and poor sealing effect.

Description

Sealing ring and wire or cable terminal box
Technical field
The utility model relates to cable splice technical field of sealing technology, more particularly to a kind of sealing ring and wire or cable terminal box.
Background technique
Wire or cable terminal box be mainly be applied to wire and cable, communication cable and letter line cable connection at protection, avoid water, Dust and cable contact.
In order to solve the problems, such as the waterproofness of wire or cable terminal box, sealing ring is set usually between cable and wire or cable terminal box, Cable seal is solved the problems, such as by sealing ring.
But since ring structure design is unreasonable, lead to wire or cable terminal box installation inconvenience, poor sealing effect.
Utility model content
Based on this, the utility model lies in that overcome the deficiencies of existing technologies, a kind of sealing ring and wire or cable terminal box is provided, come Solve the problems, such as installation inconvenience and poor sealing effect.
One end of a kind of sealing ring, including flexible weatherstrip body, the weatherstrip body is equipped with the first serrated face, The other end of the weatherstrip body is equipped with the second serrated face coincideing with the first serrated face, when the first serrated face and the second sawtooth When face coincide, the weatherstrip body forms sealing ring, first serrated face and the second serrated face in the throwing of sealing ring circumferential direction Shadow is serrated.
Above-mentioned sealing ring, the both ends of weatherstrip body are respectively equipped with cooperate the first serrated face and the second serrated face.Peace In dress, weatherstrip body is set around outside cable, and by coincideing for the first serrated face and the second serrated face, weatherstrip body formation is set The sealing ring being placed between cable and wire or cable terminal box, such structure facilitate the installation of sealing ring.First serrated face and second The identical cooperation of serrated face ensure that the connection positioning at weatherstrip body both ends, it is therefore prevented that the connection at weatherstrip body both ends is wrong Position.Meanwhile liquid is when flowing to another side end face from one side end face of sealing ring along sealing ring axis direction, due to the first saw coincideing The flank of tooth and the second serrated face be it is non-planar, and the first serrated face and the second serrated face complications cooperation so that liquid be not easy along The junction of first serrated face and the second serrated face enters wire or cable terminal box, and then improves waterproof effect.
Specifically, first serrated face includes at least two sections of sealing surface a along the distribution of sealing ring axis direction, and adjacent two Section sealing surface a is arranged in angle, and second serrated face includes at least two sealing surface b, and two neighboring sealing surface b is set in angle It sets, sealing surface b is bonded with sealing surface a one-to-one correspondence, and structure is simple, good water-proof effect.
Specifically, adjacent two sections of sealing surface a are respectively primary sealing area a and secondary sealing area a, in primary sealing area a and Arc surface a is equipped between secondary sealing area a, the side of the arc surface a is connect with primary sealing area a, and the arc surface a's is another Side is connect with secondary sealing area a;Two neighboring sealing surface b is respectively primary sealing area b and secondary sealing area b, close first Arc surface b is equipped between cover b and secondary sealing area b, the side of the arc surface b is connect with primary sealing area b, the circular arc The other side of face b is connect with secondary sealing area b.The setting of arc surface a and arc surface b make the first serrated face and the second serrated face Rounding off curved surface facilitates processing, improves the compactness of the first serrated face and the second serrated face.
Further, the weatherstrip body is equipped with the first positioning strip, when the first serrated face and identical the second serrated face, the One positioning strip is located on the outer peripheral surface of sealing ring, and the first positioning strip can be used for the axially position of sealing ring, and the first positioning strip is set It sets, facilitates the axially mounted positioning of sealing ring.
Further, the weatherstrip body is equipped with the second positioning strip with the first positioning strip interval, when the first serrated face and When second serrated face coincide, the second positioning strip is located on the outer peripheral surface of sealing ring, and the second positioning strip can be used for the axial direction of sealing ring Positioning, the setting of the first positioning strip facilitate the axially mounted positioning of sealing ring.
The utility model embodiment also provides a kind of wire or cable terminal box, further includes terminal box sheet including the sealing ring Body, the wiring box body are equipped with cable accommodating chamber, and the wiring box body is equipped with the mounting hole being connected to cable accommodating chamber, institute It states sealing ring to be set in mounting hole, the outer peripheral surface of the sealing ring is abutted with the inner wall of mounting hole, the inner circumferential of the sealing ring Face with the appearance wall of cable for abutting.
In use, cable is entered in cable accommodating chamber by mounting hole, the outer peripheral surface of sealing ring and the inner wall of mounting hole are matched It closes and abuts, the inner peripheral surface of sealing ring is abutted with the appearance wall of cable.By inner wall of the hole installing to the abutting of the outer peripheral surface of sealing ring, It is close to guarantee that the first serrated face and the second serrated face coincide.
Specifically, when having the first positioning strip on the outer peripheral surface of used sealing ring, at the first positioning strip and mounting hole The outer wall of wiring box body abuts limit, when having the first positioning strip and the second positioning strip on the outer wall of used sealing ring, First positioning strip and the second positioning strip are abutted with the terminal box inner body wall at mounting hole, outer wall respectively.
Specifically, the wiring box body includes the first box cover and the second box cover that cooperation constitutes cable accommodating chamber, described First box cover is equipped with the first accommodation groove, and second box cover is equipped with the second accommodation groove, first accommodation groove and the second accommodation groove Cooperation constitutes the mounting hole, constitutes the peace that mounting hole facilitates sealing ring by the first accommodation groove and the cooperation of the second accommodation groove Dress.
Further, the wiring box body further includes water-proof strip, and the water-proof strip is set to the first box cover and the second box cover Between.The setting of water-proof strip prevents liquid to enter in cable accommodating chamber from cooperation place of the first box cover and the second box cover.
Specifically, the first box cover is equipped with capillary groove, and the water-proof strip is set in capillary groove, the first box cover and the second box cover When closure, the side of water-proof strip is abutted with the first box cover, and the other side of water-proof strip is abutted with the second box cover.
Specifically, the side of first box cover and the second box cover rotation connection, first box cover and the second box cover The other side is detachably connected, and structure is simple, easy for installation.In the present embodiment, it is detachably connected as being threadedly coupled, by passing through The bolt of first box cover and the second box cover links together the first box cover and the second box cover.
Further, the bottom of the wiring box body is equipped with discharge outlet, and discharge outlet is connected to cable accommodating chamber.Cable accommodates Intracavitary liquid flows out cable accommodating chamber by discharge outlet.Meanwhile the setting of discharge outlet can make sealing ring both ends of the surface pressure difference small, into And the junction of the first serrated face and the second serrated face on sealing ring is avoided to separate because of pressure difference.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of sealing ring described in the utility model embodiment;
Fig. 2 is the explosive view of wire or cable terminal box described in the utility model embodiment;
Fig. 3 uses schematic diagram for wire or cable terminal box described in the utility model embodiment.
Description of symbols: 100, weatherstrip body, the 110, first serrated face, 111, sealing surface a, 112, primary sealing area A, 113, secondary sealing area a, 114, arc surface a, the 120, second serrated face, 121, sealing surface b, 122, primary sealing area b, 123, Secondary sealing area b, 124, arc surface b, the 130, first positioning strip, the 140, second positioning strip, 200, sealing ring, 300, terminal box sheet Body, 310, cable accommodating chamber, 320, mounting hole, the 330, first box cover, the 331, first accommodation groove, 332, capillary groove, 340, second Box cover, the 341, second accommodation groove, 350, water-proof strip, 360, discharge outlet, the 361, first rhone, the 362, second rhone, 400, Cable.
Specific embodiment
The utility model is more fully retouched below with reference to relevant drawings for the ease of understanding the utility model, It states.The better embodiment of the utility model is given in attached drawing.But the utility model can come in many different forms It realizes, however it is not limited to embodiments described herein.On the contrary, the purpose of providing these embodiments is that making practical new to this The disclosure of type understands more thorough and comprehensive.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to To another element or it may be simultaneously present centering elements.On the contrary, when element is referred to as " directly existing " another element "upper", There is no intermediary elements.Term as used herein "vertical", "horizontal", "left" and "right" and similar statement are For illustrative purposes, it is not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein packet Include any and all combinations of one or more related listed items.
In conjunction with Fig. 1, the utility model embodiment provides a kind of sealing ring, including flexible weatherstrip body 100, institute The one end for stating weatherstrip body 100 is equipped with the first serrated face 110, and the other end of the weatherstrip body 100 is equipped with and the first saw The second identical serrated face 120 of the flank of tooth 110, when the first serrated face 110 and the second serrated face 120 coincide, the sealing strip sheet Body 100 forms sealing ring 200, first serrated face 110 and the second serrated face 120 in the circumferential projection of sealing ring 200 in saw Dentation.
In conjunction with Fig. 1, Fig. 3, above-mentioned sealing ring, the both ends of weatherstrip body 100 are respectively equipped with first serrated face that cooperates 110 and second serrated face 120.In installation, weatherstrip body 100 is set around outside cable 400, passes through the first serrated face 110 and Two serrated faces 120 coincide, and weatherstrip body 100 forms the sealing ring 200 being set between cable 400 and wire or cable terminal box, Such structure facilitates the installation of sealing ring 200.The identical cooperation of first serrated face 110 and the second serrated face 120 ensure that close The connection accurate positioning at 100 both ends of strip of paper used for sealing ontology, it is therefore prevented that the connecting staggered at 100 both ends of weatherstrip body.Meanwhile liquid is along close When 200 axis direction of seal flows to another side end face from 200 1 side end face of sealing ring, due to identical 110 He of the first serrated face Second serrated face 120 is non-planar, and the first serrated face 110 and 120 complications of the second serrated face cooperate, so that liquid is not easy Enter wire or cable terminal box along the junction of the first serrated face 110 and the second serrated face 120, and then improves waterproof effect.
Specifically, in conjunction with Fig. 1, first serrated face 110 includes at least two sections be distributed along 200 axis direction of sealing ring Sealing surface a111, adjacent two sections of sealing surface a111 are arranged in angle, and second serrated face 120 includes at least two sealing surfaces B121, two neighboring sealing surface b121 are arranged in angle, and sealing surface b121 is bonded with sealing surface a111 one-to-one correspondence, structure letter It is single, good water-proof effect.
Specifically, adjacent two sections of sealing surface a111 are respectively primary sealing area a112 and secondary sealing area a113, first Arc surface a114, the side of the arc surface a114 and the first sealing are equipped between sealing surface a112 and secondary sealing area a113 The other side of face a112 connection, the arc surface a114 is connect with secondary sealing area a113;Two neighboring sealing surface b121 difference For primary sealing area b122 and secondary sealing area b123, circular arc is equipped between primary sealing area b122 and secondary sealing area b123 The side of face b124, the arc surface b124 are connect with primary sealing area b122, the other side and second of the arc surface b124 Sealing surface b123 connection.The setting of arc surface a114 and arc surface b124 make the first serrated face 110 and the second serrated face 120 Rounding off curved surface facilitates processing, improves the compactness of the first serrated face 110 and the second serrated face 120.
Further, the weatherstrip body 100 is equipped with the first positioning strip 130, when the first serrated face 110 and the second serrated face 120 it is identical when, the first positioning strip 130 is located on the outer peripheral surface of sealing ring 200, and the first positioning strip 130 can be used for sealing ring 200 Axially position, the setting of the first positioning strip 130 facilitate the axially mounted positioning of sealing ring 200.
Further, the weatherstrip body 100 is equipped with the second positioning strip 140 for being spaced with the first positioning strip 130, when the When one serrated face 110 and the second serrated face 120 coincide, the second positioning strip 140 is located on the outer peripheral surface of sealing ring 200, and second is fixed Position item 140 can be used for the axially position of sealing ring 200, and the setting of the first positioning strip 130 facilitates the axial peace of sealing ring 200 Set position.
In conjunction with Fig. 2, the utility model embodiment also provides a kind of wire or cable terminal box, including the sealing ring 200, also wraps Wiring box body 300 is included, the wiring box body 300 is equipped with cable accommodating chamber 310, and the wiring box body 300 is equipped with and line The mounting hole 320 that cable accommodating chamber 310 is connected to, the sealing ring 200 are set in mounting hole 320, the periphery of the sealing ring 200 Face is abutted with the inner wall of mounting hole 320, and the inner peripheral surface of the sealing ring 200 with the appearance wall of cable 400 for abutting.
In use, cable 400 is entered in cable accommodating chamber 310 by mounting hole 320, the outer peripheral surface and peace of sealing ring 200 The inner wall for filling hole 320, which cooperates, to abut, and the inner peripheral surface of sealing ring 200 is abutted with the appearance wall of cable 400.By in mounting hole 320 It is close to guarantee that the first serrated face 110 and the second serrated face 120 coincide to the abutting of the outer peripheral surface of sealing ring 200 for wall.
Specifically, when having the first positioning strip 130 on the outer peripheral surface of used sealing ring 200, the first positioning strip 130 with The outer wall of wiring box body 300 abuts limit at mounting hole 320, when having the first positioning on the outer wall of used sealing ring 200 When item 130 and the second positioning strip 140, the first positioning strip 130 and the second positioning strip 140 respectively with the terminal box at mounting hole 320 300 inner wall of ontology, outer wall abut.
Specifically, the wiring box body 300 includes the first box cover 330 and second that cooperation constitutes cable accommodating chamber 310 Box cover 340, first box cover 330 are equipped with the first accommodation groove 331, and second box cover 340 is equipped with the second accommodation groove 341, institute It states the first accommodation groove 331 and the cooperation of the second accommodation groove 341 constitutes the mounting hole 320, held by the first accommodation groove 331 and second It sets the cooperation of slot 341 and constitutes the installation that mounting hole 320 facilitates sealing ring 200.
Further, the wiring box body 300 further includes water-proof strip 350, and the water-proof strip 350 is set to the first box cover 330 and second between box cover 340.The setting of water-proof strip 350 prevents liquid matching from the first box cover 330 and the second box cover 340 Enter in cable accommodating chamber at conjunction.
Specifically, the first box cover 330 is equipped with capillary groove 332, and the water-proof strip 350 is set in capillary groove 332, and first When box cover 330 and the second box cover 340 are closed, the side of water-proof strip 350 is abutted with the first box cover 330, water-proof strip 350 it is another Side is abutted with the second box cover 340.
Specifically, the side of first box cover 330 and the second box cover 340 is rotatablely connected, first box cover 330 and the The other side of two box covers 340 is detachably connected, and structure is simple, easy for installation.In the present embodiment, it is detachably connected as screw thread company It connects, the first box cover 330 and the second box cover 340 are connected to one by the bolt by passing through the first box cover 330 and the second box cover 340 It rises.
Further, the bottom of the wiring box body 300 is equipped with discharge outlet 360, discharge outlet 360 and cable accommodating chamber 310 Connection.Liquid in cable accommodating chamber 310 flows out cable accommodating chamber 310 by discharge outlet 360.Meanwhile discharge outlet 360 is set Setting can make 200 both ends of the surface pressure difference of sealing ring small, and then avoid the first serrated face 110 and the second serrated face 120 on sealing ring 200 Junction is separated because of pressure difference.
It should be noted that in the present embodiment, the first box cover 330 is equipped with the first rhone 361 and is set to the second box cover 340 are equipped with the second rhone 362, and the first rhone 361 and the cooperation of the second rhone 362 constitute the discharge outlet 360.
Sealing ring and wire or cable terminal box in the utility model embodiment can be used at the ramification point of disagreement cable, can also With the connecting part for common cable, cable.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed, But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.

Claims (10)

1. a kind of sealing ring, which is characterized in that including flexible weatherstrip body, one end of the weatherstrip body is equipped with the One serrated face, the other end of the weatherstrip body is equipped with the second serrated face coincideing with the first serrated face, when the first serrated face When coincideing with the second serrated face, the weatherstrip body forms sealing ring, and first serrated face and the second serrated face are sealing The circumferential projection of circle is serrated.
2. sealing ring according to claim 1, which is characterized in that first serrated face includes along sealing ring axis direction At least two sections of the sealing surfaces a, adjacent two sections of sealing surface a of distribution are arranged in angle, and second serrated face includes at least two close Cover b, two neighboring sealing surface b are arranged in angle, and sealing surface b is bonded with sealing surface a one-to-one correspondence.
3. sealing ring according to claim 2, which is characterized in that adjacent two sections of sealing surface a are respectively the first sealing Face a and secondary sealing area a is equipped with arc surface a, the side of the arc surface a between primary sealing area a and secondary sealing area a It is connect with primary sealing area a, the other side of the arc surface a is connect with secondary sealing area a;Adjacent two sections in the sealing surface b Sealing surface is respectively primary sealing area b and secondary sealing area b, and arc surface is equipped between primary sealing area b and secondary sealing area b The side of b, the arc surface b are connect with primary sealing area b, and the other side of the arc surface b is connect with secondary sealing area b.
4. sealing ring according to claim 1, which is characterized in that the weatherstrip body is equipped with the first positioning strip, when the When one serrated face and the second serrated face coincide, the first positioning strip is located on the outer peripheral surface of sealing ring, and the first positioning strip can be used for close The axially position of seal.
5. sealing ring according to claim 4, which is characterized in that the weatherstrip body is equipped with and the first positioning strip interval The second positioning strip, when the first serrated face and the second serrated face coincide, the second positioning strip is located on the outer peripheral surface of sealing ring, the Two positioning strips can be used for the axially position of sealing ring.
6. a kind of wire or cable terminal box, which is characterized in that further include wiring including the described in any item sealing rings of claim 1-5 Box body, the wiring box body are equipped with cable accommodating chamber, and the wiring box body is equipped with the installation being connected to cable accommodating chamber Hole, the sealing ring are set in mounting hole, and the outer peripheral surface of the sealing ring is abutted with the inner wall of mounting hole, the sealing ring Inner peripheral surface with cable for abutting.
7. wire or cable terminal box according to claim 6, which is characterized in that the wiring box body includes that cooperation constitutes cable The first box cover and the second box cover of accommodating chamber, first box cover are equipped with the first accommodation groove, and second box cover, which is equipped with second, to be held Slot is set, first accommodation groove and the cooperation of the second accommodation groove constitute the mounting hole.
8. wire or cable terminal box according to claim 7, which is characterized in that the wiring box body further includes water-proof strip, institute Water-proof strip is stated to be set between the first box cover and the second box cover.
9. wire or cable terminal box according to claim 8, which is characterized in that the side of first box cover and the second box cover turns The other side of dynamic connection, first box cover and the second box cover is detachably connected.
10. wire or cable terminal box according to claim 6, which is characterized in that the bottom of the wiring box body is equipped with draining Mouthful, discharge outlet is connected to cable accommodating chamber.
CN201820114159.XU 2018-01-23 2018-01-23 Sealing ring and wire or cable terminal box Active CN208190216U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820114159.XU CN208190216U (en) 2018-01-23 2018-01-23 Sealing ring and wire or cable terminal box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820114159.XU CN208190216U (en) 2018-01-23 2018-01-23 Sealing ring and wire or cable terminal box

Publications (1)

Publication Number Publication Date
CN208190216U true CN208190216U (en) 2018-12-04

Family

ID=64442056

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201820114159.XU Active CN208190216U (en) 2018-01-23 2018-01-23 Sealing ring and wire or cable terminal box

Country Status (1)

Country Link
CN (1) CN208190216U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109449622A (en) * 2018-12-21 2019-03-08 济南必拓电气设备有限公司 Hermetically sealed waterproof tee connector
CN113409998A (en) * 2021-07-06 2021-09-17 广东电网有限责任公司 Novel waterproof sheath

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109449622A (en) * 2018-12-21 2019-03-08 济南必拓电气设备有限公司 Hermetically sealed waterproof tee connector
CN109449622B (en) * 2018-12-21 2024-04-19 济南必拓电气设备有限公司 Full-sealed waterproof branching connector
CN113409998A (en) * 2021-07-06 2021-09-17 广东电网有限责任公司 Novel waterproof sheath

Similar Documents

Publication Publication Date Title
CN208190216U (en) Sealing ring and wire or cable terminal box
CN105000634B (en) Water purifier
CN206660701U (en) Composite filter element and purifier
CN104505604B (en) A kind of waterproof wiring folder
US2357755A (en) Conduit fitting
CN106795709B (en) Intermediate retainer
FR3008428B1 (en) SEAL FOR ELECTROLYSOR BATTERY AND ELECTROLYSIS BATTERY EQUIPPED WITH SUCH A SEAL
CN206619766U (en) Quick connector for LED lamp
CN206660702U (en) Composite filter element and purifier
CN205824445U (en) A kind of faucet diverter of quick splicing
CN203303746U (en) Filter with disposable filter element
CN108567206A (en) A kind of high applicability ring
CN108328760A (en) Filter element shell and filter element
CN208368368U (en) A kind of limit switch
CN208397956U (en) A kind of waterproof solar lamp
CN209691632U (en) A kind of waterproof IR remote controller
CN204897547U (en) Effective minute gas device of micropore aeration of injection structure
CN208190176U (en) A kind of weighing sensor terminal box
CN213932704U (en) Water meter cover structure with good sealing performance
CN208248071U (en) A kind of damp-proof trailer indoor lamp
CN210176540U (en) Novel pipe connector of RO membrane filter core
CN212843786U (en) Electromechanical separation type water meter
CN210484660U (en) Blowoff valve
CN210219008U (en) High-sealing-fit exhaust pipe
CN211255841U (en) Natural gas filtering structure matched with natural gas pipeline for use

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant