CN215116916U - Miniature optical cable joint box - Google Patents

Miniature optical cable joint box Download PDF

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Publication number
CN215116916U
CN215116916U CN202121579655.0U CN202121579655U CN215116916U CN 215116916 U CN215116916 U CN 215116916U CN 202121579655 U CN202121579655 U CN 202121579655U CN 215116916 U CN215116916 U CN 215116916U
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China
Prior art keywords
groove
rubber
upper cover
sealing
lower shell
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CN202121579655.0U
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Chinese (zh)
Inventor
张琪
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Hangzhou Jinmai Communication Equipment Co ltd
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Hangzhou Jinmai Communication Equipment Co ltd
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Priority to CN202121579655.0U priority Critical patent/CN215116916U/en
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Abstract

A miniature optical cable joint box comprises a lower shell and an upper cover connected on the lower shell, wherein two sides of opposite surfaces of the lower shell and the upper cover are respectively provided with a wire groove for splicing a wire hole, the opposite surfaces of the lower shell and the upper cover are respectively and symmetrically provided with a sealing groove communicated with the wire groove, a rubber ring group for sealing is arranged in the sealing groove of the lower shell, the wire grooves are internally provided with rubber block groups for sealing, the lower shell is also provided with a sealing assembly, the sealing assembly comprises a raised line, a push plate, a pressure spring and two barrier strips, the raised line is horizontally arranged on one side of the sealing groove of the lower shell, the push plate is horizontally arranged on the upper surface of the raised line through the pressure spring, the two barrier strips are arranged on two opposite sides of the raised line along the length direction of the raised line, one side of the sealing groove of the upper cover is provided with a slot, and a rubber pad is arranged in the slot, when the convex strips extend into the slots, the push plate pushes the rubber pads so that the rubber pads deform to abut against the stop strips; the utility model discloses the advantage lies in guaranteeing to avoid the rainwater to leak into inside.

Description

Miniature optical cable joint box
Technical Field
The utility model relates to a technical field of optical cable joint box, concretely relates to miniature optical cable joint box.
Background
The optical cable joint box is a connection part which connects two or more optical cables together and has a protection component, is necessary to be adopted in the construction of optical cable line engineering, is one of very important equipment, has the function of providing fusion splicing of optical fibers and optical fibers, fusion splicing of the optical fibers and tail fibers and cross-connection of optical connectors, and directly influences the quality of the optical cable line and the service life of the optical cable line.
At present, the optical cable joint boxes are generally installed on an indoor wall body or an outdoor wall body, or are hung in an optical cable box of an outdoor telegraph pole, when the outdoor raining is easy, air is moist, the wire inlet holes of the optical cable terminal boxes adopted by traditional electric wire companies or mobile companies are directly plugged by a rubber ring, then optical cables penetrate through the wire inlet holes in a puncture mode, the access mode cannot completely play a waterproof role, moist air or rainwater can still leak into the box body from gaps between the punctured rubber ring and the optical cables, and rainwater can also easily leak into the box body from connecting gaps between the optical cable joint boxes, so that whether water enters the inside of the existing optical cable joint boxes after being used for a period of time or not needs to be checked, or the existing optical cable joint boxes need to be replaced and maintained after being used for a period of time, the cost is high, and the requirements of the optical cable companies are difficult to meet.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a multiple sealed miniature optical cable splice box in order to ensure to avoid the rainwater to leak into inside to solve the box body internal line that exists among the background art and lead to the problem of circuit damage because of moist or intaking.
A miniature optical cable joint box comprises a lower shell and an upper cover connected to the lower shell, wherein a fiber melting disc is arranged in the lower shell and used for welding an optical fiber incoming line and an optical fiber outgoing line, wire grooves used for splicing wire holes are formed in two opposite sides of the lower shell and the upper cover respectively, sealing grooves communicated with the wire grooves are symmetrically formed in the opposite sides of the lower shell and the upper cover respectively, a rubber ring group used for sealing is arranged in each sealing groove of the lower shell, a rubber block group used for sealing is arranged in each wire groove, a sealing assembly is further arranged on the lower shell and comprises a raised line, a push plate, a pressure spring and two barrier bars, the raised line is horizontally arranged on one side of each sealing groove of the lower shell, the push plate is horizontally arranged on the upper surface of the raised line through the pressure spring, the two barrier bars are arranged on two opposite sides of the raised line along the length direction of the raised line, and a slot is formed in one side of each sealing groove of the upper cover, the slot is internally provided with a rubber pad, and when the raised strips extend into the slot, the push plate pushes and presses the rubber pad so that the rubber pad deforms and is pressed on the blocking strips.
Furthermore, the opposite two sides of the convex strip are provided with inclined planes which deviate from each other, and the inclined planes on the two sides of the convex strip are respectively connected with the upper surfaces of the stop strips on the same side.
Further, the seal groove on the inferior valve and the seal groove on the upper cover all include two sets of first seal grooves that set up relatively, the wire casing on the inferior valve and the wire casing on the upper cover are four, and two liang of relative settings, arbitrary one the wire casing both sides are equipped with first extending groove and second extending groove respectively, just the wire casing communicates with each other with first extending groove and second extending groove, arbitrary one the first extending groove of wire casing one side communicates with each other with the first seal groove of homonymy, two of homonymy be equipped with between the second extending groove of wire casing and connect and communicating second seal groove.
Further, rubber circle group is including being located the straight strip rubber strip of two sets of first seal grooves, the upper surface of straight strip rubber strip be equipped with the first seal groove complex jut of upper cover, rubber block group includes two semicircle rubber circles and is located the sheet rubber of semicircle rubber circle both sides, semicircle rubber circle level sets up at the wire inslot, sheet rubber and first extension groove or the cooperation of second extension groove, two be equipped with the connecting strip between the sheet rubber of semicircle rubber circle opposite side, the connecting strip is located the second seal groove.
Further, be equipped with a plurality of arc walls that set up side by side in the wire casing, the lateral surface of semicircle form rubber circle be equipped with arc wall complex arc suddenly circle, the medial surface of semicircle form rubber circle is equipped with a plurality of second arc that set up side by side and suddenly circles.
Furthermore, a rubber column used for sealing the wire groove is arranged between the semicircular rubber ring on the lower shell and the semicircular rubber ring on the upper cover.
Further, aluminum plates are arranged on the opposite surfaces of the lower shell and the upper cover along the edges.
Further, all be equipped with the screw hole on the aluminum plate of inferior valve and upper cover, be equipped with the bolt with screw hole threaded connection between inferior valve and the upper cover, be equipped with the external screw thread on partly lateral surface of upper end of bolt, partly lateral surface of lower extreme is the smooth surface.
Furthermore, a positioning column and a positioning groove are respectively arranged on the opposite surfaces of the lower shell and the upper cover, and the positioning column is matched with the positioning groove.
The utility model discloses useful part lies in: 1. the arrangement of the rubber ring group and the rubber block group can seal a gap between the lower shell and the upper cover to form a first heavy sealing channel, the rubber pad is extruded by the convex strip to deform and fill the upper surface of the abutting barrier strip, so that a second heavy sealing channel is realized, and the double sealing can ensure that moist air and rainwater can be prevented from permeating from the gap;
2. can increase the hardness of splice box through aluminum plate, and connect through bolt and aluminum plate's screw hole and can make the bolt drop behind the upper cover can not drop from the inferior valve, the bolt drops and causes the object that falls aloft or avoids causing the installation trouble to the workman when avoiding workman high altitude construction.
Drawings
Fig. 1 is an overall structure diagram of the present invention.
FIG. 2 is an internal view of the middle-lower case of the present invention;
FIG. 3 is an internal view of the upper cover of the present invention;
FIG. 4 is a structural diagram of the rubber block set of the present invention;
FIG. 5 is a schematic view of a seal assembly of the present invention;
fig. 6 is a state diagram of the sealing assembly of the present invention when pressed.
In the drawings: 1. a lower case; 2. an upper cover; 3. melting the fiber disc; 4. a wire slot; 5. a first seal groove; 6. straight strip rubber strips; 7. a rubber block group; 71. a semicircular rubber ring; 72. a rubber sheet; 73. a connecting strip; 8. a seal assembly; 81. a convex strip; 811. a bevel; 82. pushing the plate; 83. a pressure spring; 84. a barrier strip; 9. a slot; 10. a rubber pad; 11. a first extension groove; 12. a second extension groove; 13. a second seal groove; 14. an arc-shaped slot; 15. a rubber column; 16. an aluminum plate; 17. a positioning column; 18. and (6) positioning a groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Because the prior optical cable joint box is generally arranged on an indoor wall body or an outdoor wall body or hung in an optical cable box of an outdoor telegraph pole, when the outdoor raining is easy to cause air humidity, the wire inlet hole of the optical cable terminal box adopted by the traditional electric wire company or mobile company is directly plugged by a rubber ring and then punctures to penetrate an optical cable, the access mode can not completely play a waterproof role, the humid air or rainwater can still leak into the box body from the gap between the punctured rubber ring and the optical cable, and the rainwater can also easily leak into the box body from the connecting gap between the optical cable joint boxes, therefore, the prior optical cable joint box needs to check whether the inside is filled with water or not after being used for a period of time, or needs to be replaced and maintained after being used for a period of time, so that the cost is higher, and the requirements of the optical cable company are difficult to meet, therefore, the utility model designs the miniature optical cable joint box, the specific structure is shown in fig. 1-6, comprising a lower shell 1 and an upper cover 2 connected to the lower shell 1 (the lower shell 1 and the upper cover 2 are connected by bolts), a fiber melting disc 3 is arranged in the lower shell 1 (a disc storage groove is arranged on the opposite surface of the upper shell and the lower cover, the fiber melting disc 3 is fixedly arranged in the disc storage groove of the lower shell 1), the fiber melting disc 3 is used for welding an optical fiber incoming line and an optical fiber outgoing line, two sides of the opposite surface of the lower shell 1 and the upper cover 2 are respectively provided with a wire groove 4 for splicing to form a wire hole (the above is the structure of the existing splice box, the principle is that the optical cable incoming line is led in from the wire groove 4 on one side of the box body and then is led in the fiber melting disc 3, the optical cable is led out from the wire groove 4 on the other side of the box body after the optical fiber appears in the fiber melting disc 3 and the optical cable), the opposite surfaces of the lower shell 1 and the upper cover 2 are respectively and symmetrically provided with a sealing groove communicated with the wire groove 4, a rubber ring group for sealing is arranged in the sealing groove of the lower shell 1, the wire casing 4 is provided with a rubber block group 7 for sealing (the rubber ring group and the rubber block group 7 are used for sealing a gap between the lower casing 1 and the upper cover 2 to form a first heavy sealing channel to block external moist air and rainwater from blocking outside the first heavy sealing channel), as shown in fig. 2, 5 and 6, the lower casing 1 is further provided with a sealing assembly 8, the sealing assembly 8 comprises a raised strip 81, a push plate 82, a pressure spring 83 and two blocking strips 84, the raised strip 81 is horizontally arranged on one side of the sealing groove of the lower casing 1 (on one side close to the storage disc groove, but on the side far from the sealing groove), the push plate 82 is horizontally arranged on the upper surface of the raised strip 81 through the pressure spring 83, the pressure springs 83 are provided in plurality, one end of each pressure spring 83 is fixed on the upper surface of the raised strip 81, the bottom surface of the push plate 82 is fixed with the other end of each pressure spring 83, the two blocking strips 84 are arranged on two opposite sides of the raised strip 81 along the length direction of the raised strip 81, it is the same with the length of sand grip 81 to block strip 84, seal groove one side of upper cover 2 is equipped with slot 9 (the width of slot 9 is equal to the width of sand grip 81 + both sides block strip 84's width, the width of push pedal 82 is less than or equal to the width of sand grip 81 < the width of slot 9), be equipped with rubber pad 10 (soft rubber block, also can be soft silica gel) in the slot 9, when sand grip 81 stretches into in the slot 9, push pedal 82 bulldozes rubber pad 10 so that rubber pad 10 warp to support and press on blocking strip 84, its sealed principle is: the workman is with lid 2 in lower casing 1 behind slot 9 alignment sand grip 81 of upper cover 2, push pedal 82 on the sand grip 81 this moment can contact the rubber pad 10 in the slot 9, after lower casing 1 and upper cover 2 pass through bolt locking completely, sand grip 81 roof pressure spring 83, make pressure spring 83 compress, push pedal 82 receives the elasticity of pressure spring 83 this moment and makes push pedal 82 extrude rubber pad 10, because the width of push pedal 82 is less than the width that pushes away the groove, then push pedal 82 extrudees rubber pad 10 back rubber pad 10 can follow push pedal 82 both sides outstanding the pressure and block the upper surface at strip 84, realize sealed effect.
As shown in fig. 5, the opposite two sides of the protruding strip 81 are provided with inclined planes 811 deviating from each other, the inclined planes 811 on the two sides of the protruding strip 81 are respectively engaged with the upper surfaces of the barrier strips 84 on the same side, the rubber gasket 10 is filled between the side surface of the protruding strip 81 and the upper surfaces of the barrier strips 84 after being pressed, because the upper surfaces of the barrier strips 84 are planes, if the side surface of the protruding strip 81 is a vertical surface, the included angle between the protruding strip 81 and the barrier strips 84 is 90 °, the inclined plane 811 is arranged on one side of the protruding strip 81, the included angle between the protruding strip 81 and the barrier strips 84 is greater than 90 °, the rubber gasket 10 is in contact with the inclined planes 811 during filling, the filling speed is faster, and the sealing performance is higher.
As shown in fig. 2-3, the sealing grooves on the lower shell 1 and the upper cover 2 respectively include two sets of first sealing grooves 5 (the utility model discloses a joint box is square, then two first sealing grooves 5 are relatively set up on the joint box length edge, and first sealing groove 5 is the straight-line groove), the wire casing 4 on the lower shell 1 and the wire casing 4 on the upper cover 2 are four, and two sets of (2 each on the left and right sides) are relatively set up, first extension groove 11 and second extension groove 12 are respectively arranged on any two sides of wire casing 4, and the wire casing 4 is communicated with first extension groove 11 and second extension groove 12, the first extension groove 11 on any one side of wire casing 4 is communicated with the first sealing groove 5 on the same side, and a second sealing groove 13(2 first sealing grooves 5, 4 first extension grooves 11) is provided between the second extension grooves 12 of two wire casings 4 on the same side for connecting and communicating (2 first sealing grooves 5, 4 first extension grooves 11, The 4 wire grooves 4, the 4 second extension grooves 12 and the 2 second seal grooves 13 form a seal channel surrounding the storage groove, the second seal groove 13 is positioned on the wide edge of the joint box, the wire grooves 4, the first extension grooves 11 and the second extension grooves 12 are all arranged along the length direction of the joint box, and a connected angle folding groove is also arranged between the first seal groove 5 and the first extension grooves 11); as shown in fig. 2, the rubber ring set comprises straight rubber strips 6 located in two sets of first sealing grooves 5, the upper surface of the straight rubber strips 6 is provided with protrusions (there are also protrusions on the bottom surface of the straight rubber strips 6, and there are limit grooves in the first sealing grooves 5 of the corresponding lower case 1 and upper case 2, which are engaged with the protrusions), as shown in fig. 4, the rubber block set 7 comprises two semicircular rubber rings 71 and rubber sheets 72 located at both sides of the semicircular rubber rings 71, the semicircular rubber rings 71 are horizontally arranged in the wire groove 4, the rubber sheets 72 are engaged with the first extension groove 11 or the second extension groove 12, a connecting strip 73 is arranged between the rubber sheets 72 at the opposite sides of the two semicircular rubber rings 71, the connecting strip 73 is located in the second sealing groove 13, in the present invention, the two straight rubber strips 6, 4 rubber block sets 7 and 2 connecting strips 73 in the lower case 1 are all connected and integrally, the upper cover 2 only has 4 rubber block groups 7 and 2 connecting strips 73, and the 2 rubber block groups 7 on the same side are connected into a whole through 1 connecting strip 73, and the purpose is to improve the sealing property.
As shown in fig. 2-3, a plurality of arc grooves 14 arranged side by side are arranged in the wire slot 4, the outer side surface of the semicircular rubber ring 71 is provided with an arc protruding ring matched with the arc groove 14 (the purpose is to enable the semicircular rubber ring 71 to be positioned in the wire slot 4 and play a limiting role through the matching of the arc protruding ring and the arc groove 14, and the purpose is to improve the sealing performance), a rubber column 15 used for sealing the wire slot 4 is arranged between the semicircular rubber ring 71 on the lower shell 1 and the semicircular rubber ring 71 on the upper cover 2, the inner side surface of the semicircular rubber ring 71 is provided with a plurality of second arc protruding rings arranged side by side, because the surface of the rubber column 15 is smooth, the effect of the second arc protruding rings is to avoid the rubber column 15 from slipping and enable the rubber column 15 to be contacted more tightly through the second arc protruding rings, and the sealing performance is higher.
As shown in fig. 1, since the lower case 1 and the upper cover 2 are both made of pp material and have insufficient strength, aluminum plates 16 are arranged along edges on the opposite surfaces of the lower case 1 and the upper cover 2, and the strength of the joint box is higher by the aluminum plates 16; all be equipped with the screw hole on the aluminum plate 16 on inferior valve 1 and the upper cover 2, be equipped with the bolt with screw hole threaded connection between inferior valve 1 and the upper cover 2, be equipped with the external screw thread on the partly lateral surface of upper end of bolt, a part of lateral surface of lower extreme is the smooth surface, traditional inferior valve 1 and upper cover 2 are connected and all are ordinary threaded connection, when the staff is at high altitude construction, if the bolt easily drops when putting into upper cover 2 interior preparation locking, consequently causes certain trouble to the staff, and the utility model discloses in the first threaded connection of bolt in the aluminum plate 16 of upper cover 2 or inferior valve 1's filter plate, then with second half lid close the back bolt and go into in second half aluminum plate 16.
As shown in fig. 2-3, the opposite surfaces of the lower case 1 and the upper cover 2 are respectively provided with a positioning column 17 and a positioning groove 18, the positioning column 17 is matched with the positioning groove 18, and the matching of the positioning column 17 and the positioning groove 18 mainly plays a role in guiding and limiting.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Claims (9)

1. The utility model provides a miniature optical cable splice box, includes inferior valve (1) and connects upper cover (2) on inferior valve (1), including melting fine dish (3) in inferior valve (1), it is used for fused fiber incoming line and optic fibre to be qualified for the next round of competitions to melt fine dish (3), the opposite face both sides of inferior valve (1) and upper cover (2) are equipped with wire casing (4) that are used for the concatenation to constitute the line hole respectively, its characterized in that: the opposite surfaces of the lower shell (1) and the upper cover (2) are symmetrically provided with sealing grooves communicated with the wire grooves (4) respectively, a rubber ring group used for sealing is arranged in the sealing groove of the lower shell (1), a rubber block group (7) used for sealing is arranged in each wire groove (4), the lower shell (1) is further provided with a sealing assembly (8), each sealing assembly (8) comprises a convex strip (81), a push plate (82), a pressure spring (83) and two barrier strips (84), the convex strips (81) are horizontally arranged on one side of the sealing groove of the lower shell (1), the push plate (82) is horizontally arranged on the upper surface of the convex strip (81) through the pressure spring (83), the two barrier strips (84) are arranged on the two opposite sides of the convex strip (81) along the length direction of the convex strip (81), one side of the upper cover (2) is provided with a sealing groove (9), and a rubber pad (10) is arranged in the groove (9), when the convex strips (81) extend into the slots (9), the push plate (82) pushes the rubber pads (10) to deform the rubber pads (10) to press against the stop strips (84).
2. A miniature cable closure according to claim 1, wherein: the relative both sides of sand grip (81) are equipped with inclined plane (811) that deviates from mutually, inclined plane (811) of sand grip (81) both sides links up with the barrier strip (84) upper surface of homonymy respectively.
3. A miniature cable closure according to claim 1, wherein: seal groove on inferior valve (1) and the seal groove on upper cover (2) all include two sets of relative first seal groove (5) that set up, wire casing (4) on inferior valve (1) and wire casing (4) on upper cover (2) are four, and two liang of relative settings, arbitrary one wire casing (4) both sides are equipped with first extending groove (11) and second extending groove (12) respectively, just wire casing (4) communicate with each other with first extending groove (11) and second extending groove (12), arbitrary one first extending groove (11) of wire casing (4) one side communicate with each other with first seal groove (5) of homonymy, two of homonymy be equipped with between the second extending groove (12) of wire casing (4) and connect and communicating second seal groove (13).
4. A miniature cable closure according to claim 3, wherein: rubber circle group is including being located straight strip rubber strip (6) in two sets of first seal grooves (5), the upper surface of straight strip rubber strip (6) is equipped with first seal groove (5) complex jut with upper cover (2), rubber block group (7) include two semicircle form rubber circle (71) and are located rubber sheet (72) of semicircle form rubber circle (71) both sides, semicircle form rubber circle (71) level sets up in wire casing (4), rubber sheet (72) and first extension groove (11) or second extension groove (12) cooperation, two be equipped with connecting strip (73) between rubber sheet (72) of semicircle form rubber circle (71) opposite side, connecting strip (73) are located second seal groove (13).
5. The miniature cable closure of claim 4, wherein: be equipped with a plurality of arc walls (14) that set up side by side in wire casing (4), the lateral surface of semicircle form rubber circle (71) is equipped with suddenly the circle with arc wall (14) complex arc, the medial surface of semicircle form rubber circle (71) is equipped with suddenly the circle of a plurality of second arcs that set up side by side.
6. The miniature cable closure of claim 5, wherein: and a rubber column (15) used for sealing the wire groove (4) is arranged between the semicircular rubber ring (71) on the lower shell (1) and the semicircular rubber ring (71) on the upper cover (2).
7. A miniature cable closure according to claim 1, wherein: aluminum plates (16) are arranged on the back separating surfaces of the lower shell (1) and the upper cover (2) along the edges.
8. The miniature cable closure of claim 7, wherein: all be equipped with the screw hole on aluminum plate (16) on inferior valve (1) and upper cover (2), be equipped with between inferior valve (1) and upper cover (2) with screw hole threaded connection's bolt, be equipped with the external screw thread on the partly lateral surface of upper end of bolt, partly lateral surface of lower extreme is the smooth surface.
9. A miniature cable closure according to claim 1, wherein: and the opposite surfaces of the lower shell (1) and the upper cover (2) are respectively provided with a positioning column (17) and a positioning groove (18), and the positioning column (17) is matched with the positioning groove (18).
CN202121579655.0U 2021-07-12 2021-07-12 Miniature optical cable joint box Active CN215116916U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121579655.0U CN215116916U (en) 2021-07-12 2021-07-12 Miniature optical cable joint box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121579655.0U CN215116916U (en) 2021-07-12 2021-07-12 Miniature optical cable joint box

Publications (1)

Publication Number Publication Date
CN215116916U true CN215116916U (en) 2021-12-10

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ID=79320199

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121579655.0U Active CN215116916U (en) 2021-07-12 2021-07-12 Miniature optical cable joint box

Country Status (1)

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CN (1) CN215116916U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114345279A (en) * 2022-01-13 2022-04-15 张洪博 Reation kettle is used in processing of bio-pharmaceuticals raw and other materials

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114345279A (en) * 2022-01-13 2022-04-15 张洪博 Reation kettle is used in processing of bio-pharmaceuticals raw and other materials

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