CN112728276A - Spiral duct tee bend protective housing - Google Patents
Spiral duct tee bend protective housing Download PDFInfo
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- CN112728276A CN112728276A CN202011550140.8A CN202011550140A CN112728276A CN 112728276 A CN112728276 A CN 112728276A CN 202011550140 A CN202011550140 A CN 202011550140A CN 112728276 A CN112728276 A CN 112728276A
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- shell
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- 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
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
- F16L55/0335—Noise absorbers by means of external rings
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The utility model belongs to the technical field of the helical duct tee bend and specifically relates to a helical duct tee bend protective housing is related to, and it includes the casing board, the casing board is the soft board, the long limit of casing board is when batching tube-shape around, the lateral wall of two broadsides departments of casing board offsets, a broadside department of casing board is connected with first coupling assembling, another broadside department of casing board is connected with second coupling assembling, when the casing board is around batching tube-shape, first coupling assembling and second coupling assembling can dismantle the connection. This application has the effect that improves tee bend protective housing installation convenience.
Description
Technical Field
The application relates to the field of spiral duct tee joints, in particular to a spiral duct tee joint protective shell.
Background
The spiral air pipe is mainly used for communicating air between two places and plays a role in ventilation. The spiral air duct is applied to a purification system air supply and return duct, a central air conditioning ventilation duct, an industrial air supply and exhaust ventilation duct, an environmental protection system air suction and exhaust duct, a mine gas drainage pipe, a mine rubberized cloth air duct and the like, and has a wide application range.
The three-way pipe is widely used in the pipe network for conveying liquid and gas. When the gas is conveyed, the flow velocity of the gas flow is high, and therefore high noise can be generated in the three-way pipe. In order to reduce noise, a protective shell is usually arranged on the three-way pipe of the spiral air duct, and the protective shell is called as a three-way protective shell of the spiral air duct.
The three-way protective housing on the market generally winds the plate materials into a cylindrical shape, and the joints of the plate materials are fixedly connected in a welding mode.
With respect to the related art in the above, the inventors consider that: the tee bend protective housing is when installing, and the installation is inconvenient.
Disclosure of Invention
In order to improve the convenience of tee bend protective housing installation, realize dismantled and assembled installation, this application provides a spiral duct tee bend protective housing.
The application provides a pair of spiral duct tee bend protective housing adopts following technical scheme:
the utility model provides a spiral duct tee bend protective housing, includes the casing board, the casing board is the soft board, when the long limit of casing board is coiled the tube-shape around, the lateral wall of two broadsides departments of casing board offsets, a broadside department of casing board is connected with first coupling assembling, another broadside department of casing board is connected with second coupling assembling, when the casing board is coiled the tube-shape around, first coupling assembling and second coupling assembling can dismantle the connection.
Through adopting above-mentioned technical scheme, during the installation protective housing, operating personnel is around rolling up the casing board to through the high-speed joint of first coupling assembling and second coupling assembling, when the casing board is dismantled to needs, through the quick dismantlement of first coupling assembling and second coupling assembling, through first coupling assembling and the cooperation of second coupling assembling each other, realized the quick assembly disassembly of tee bend protective housing, improved the convenience of tee bend protective housing installation.
Optionally, the first connecting assembly includes an installation block and a plug, the installation block is fixedly connected to the housing plate, the plug is fixedly connected to a side wall of the installation block, and when the housing plate is wound, the plug is disposed toward the second connecting assembly; the second coupling assembling includes warhead, fixed block, it has the spout that supplies the warhead to slide to open on the fixed block, the spacing pressure spring of fixedly connected with between the tank bottom of spout and the warhead, the fixed block is opened towards one side of plug and is had the locking hole that supplies plug male, it has the jack that supplies warhead male to open on the plug.
Through adopting above-mentioned technical scheme, operating personnel makes the plug insert the locking hole around rolling up the casing board, and at the in-process that the plug removed, spacing pressure spring elastic deformation, the warhead moves towards the spout tank bottom, and when the axis of jack and the axis of warhead were coaxial, the elastic potential energy release of spacing pressure spring, this elasticity promotes the warhead and inserts the jack, accomplishes spacing to the plug, has realized being connected and locking between first coupling assembling and the second coupling assembling.
Optionally, the first connecting assembly and the second connecting assembly are arranged in a plurality of axial directions after the first connecting assembly and the second connecting assembly are rolled into a cylinder shape along the shell plate, and the first connecting assembly and the second connecting assembly are arranged in a one-to-one correspondence manner.
Through adopting above-mentioned technical scheme, the first coupling assembling of multiunit and second coupling assembling cooperate, have improved the stability around rolling up back casing board.
Optionally, each warhead is fixedly connected with a linkage rod, each linkage rod is fixedly connected with a transmission rack, the length direction of each transmission rack and the axial direction of the shell plate after the shell plate is rolled into a cylinder shape are the same, the shell plate is rotatably connected with a driving gear, and the driving gear is meshed with the transmission racks.
By adopting the technical scheme, when the shell plate needs to be detached, an operator rotates the driving gear, the driving gear drives all the linkage rods through the transmission rack, the linkage rods are linked with the warhead, the warhead moves along the direction of the bottom of the sliding groove, when the warhead is separated from the jack, the plug loses the limit, the first connecting assembly and the second connecting assembly are separated, the protective shell can be taken down, and the quick detachment of the shell plate is realized.
Optionally, the first connecting assembly includes a first connecting plate and a second connecting plate, when the shell plate is rolled into a cylinder, the first connecting plate is integrally formed on the inner side surface of the shell plate, the second connecting plate is integrally formed on one side of the first connecting plate, which is away from the shell plate, the second connecting plate abuts against the inner wall of the shell plate, the first connecting plate is provided with a locking groove, the locking groove includes a first locking groove and a second locking groove, the second locking groove is located on one side of the first locking groove, which is away from the shell plate, and the second locking groove is communicated with the first locking groove; the second coupling assembling includes first chucking piece, second chucking piece, when the casing board was around the batching tube-shape, second chucking piece fixed connection is in the casing board, first chucking piece fixed connection deviates from one side of casing board in the second chucking piece, first chucking piece is located the second locked groove, first chucking piece slides and inserts and establishes behind the first locked groove of entering, second chucking piece and the mutual joint of second locked groove.
By adopting the technical scheme, when the shell plate is installed, an operator winds the shell plate, then inserts the first clamping piece into the first locking groove until the second clamping piece enters the first locking groove, then twists the shell plate to enable the second clamping piece to be clamped with the second locking groove, and at the moment, the first clamping piece abuts against the inner wall of the shell plate to realize connection of the shell plate.
Optionally, an elastic pad is glued on the side wall of one wide edge of the shell plate.
By adopting the technical scheme, after the shell plate is rolled into a cylinder shape, the elastic cushion elastically deforms to fill the side walls of the two wide edges of the shell plate, so that the sealing performance of the shell plate after the shell plate is rolled is improved.
Optionally, two inner side walls opposite to the sliding grooves are respectively provided with a limiting groove, and a limiting block fixedly connected to the warhead slides in the limiting grooves.
Through adopting above-mentioned technical scheme, stopper and spacing groove cooperate, carry on spacingly to the warhead, have improved the stability of warhead.
Optionally, the shell plate is fixedly connected with a conducting bar, the length direction of the conducting bar and the shell plate are in the same direction after being rolled into a cylindrical shape, a guide groove is formed in the conducting bar along the length direction of the conducting bar, and a sliding bar fixedly connected to the transmission rack slides in the guide groove.
Through adopting above-mentioned technical scheme, conducting bar, guide slot and draw runner cooperate, provide the direction for the transmission rack.
Optionally, one end of the plug, which deviates from the mounting block, is hemispherical, and one end of the bullet, which is far away from the limiting pressure spring, is hemispherical.
Through adopting above-mentioned technical scheme, hemispherical setting has reduced the frictional force when the plug gets into the locking hole, has improved the smooth and easy nature when the plug inserts, and hemispherical setting has reduced the frictional force when the warhead gets into the jack, has improved the smooth and easy nature when the warhead slides and gets into the jack
To sum up, the application comprises the following beneficial technical effects:
1. the first connecting assembly and the second connecting assembly are matched with each other, so that the three-way protection shell is quickly disassembled and assembled, and the convenience of installing the three-way protection shell is improved;
2. when the shell plate needs to be detached, an operator rotates the driving gear, the driving gear drives all the linkage rods through the transmission rack, the linkage rods are linked with the warheads, the warheads move along the direction of the bottoms of the sliding grooves, when the warheads are separated from the jacks, the plugs lose the limit positions, the first connecting assembly and the second connecting assembly are separated, the protective shell can be taken down, and the shell plate is rapidly detached.
Drawings
Fig. 1 is an overall structural schematic diagram of a three-way protective shell of a spiral duct in embodiment 1 of the present application.
Fig. 2 is an enlarged view of a portion a in fig. 1 in embodiment 1 of the present application.
Fig. 3 is a sectional view for embodying a bullet in embodiment 1 of the present application.
Fig. 4 is an overall structural schematic diagram of the spiral duct three-way protection shell according to embodiment 2 of the present application.
Fig. 5 is an enlarged view of a portion B in embodiment 2 of the present application for embodying fig. 4.
Description of reference numerals: 1. a housing panel; 101. mounting holes; 102. a support bar; 103. conducting bars; 1031. a guide groove; 104. a slide bar; 105. an elastic pad; 2. a first connection assembly; 201. mounting blocks; 202. a plug; 203. a first connecting plate; 204. a second connecting plate; 3. a second connection assembly; 301. a warhead; 3011. a limiting block; 3012. a jack; 302. a fixed block; 3021. a locking hole; 3022. a chute; 303. a limiting pressure spring; 304. a limiting groove; 305. a first chucking sheet; 306. a second chucking sheet; 4. a linkage rod; 401. a first lever; 402. a second lever; 403. a third lever; 5. a drive rack; 501. a drive gear; 5011. a handle; 6. a locking groove; 601. a first locking groove; 602. a second locking groove.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
The embodiment of the application discloses spiral duct tee bend protective housing.
Example 1
Referring to fig. 1, the spiral duct three-way protection shell comprises a shell plate 1, wherein the shell plate 1 is a soft plate, and a mounting hole 101 for mounting a three-way pipe is formed in the shell plate 1. One broadside department of casing board 1 is connected with first coupling assembling 2, and another broadside department is connected with second coupling assembling 3, and when casing board 1 coiled the tube-shape, first coupling assembling 2 and second coupling assembling 3 can dismantle the connection. When the housing plate 1 is rolled into a cylindrical shape, the first connecting member 2 and the second connecting member 3 are connected and locked to each other, so that the housing plate 1 maintains the cylindrical shape.
Referring to fig. 1, in order to improve the stability of the housing plate 1 after being wound into a cylindrical shape and locked, a plurality of groups of first connection assemblies 2 and second connection assemblies 3 are respectively arranged along the axial direction of the cylinder formed by winding the housing plate 1. First coupling assembling 2 and the setting of second coupling assembling 3 one-to-one, and mutually support, improved the stability of connecting.
Referring to fig. 2, the first connection assembly 2 includes a mounting block 201, and a plug 202, when the housing plate 1 is rolled into a cylindrical shape, the mounting block 201 is fixedly connected to the outer surface of the housing plate 1, and the mounting block 201 is located at the edge of the wide side of the housing plate 1. The plug 202 is fixedly connected to one side of the mounting block 201 facing the second connecting assembly 3, and the plug 202 is cylindrical.
Referring to fig. 2 and 3, the second connecting assembly 3 includes a bullet 301 and a fixing block 302, and when the housing plate 1 is rolled into a cylindrical shape, the fixing block 302 is fixedly connected to the outer surface of the housing plate 1. The fixed block 302 is positioned at the edge of the wide edge of the shell plate 1, and the fixed block 302 and the plug 202 are correspondingly arranged. The side of the fixed block 302 facing the plug 202 is provided with a locking hole 3021 for the plug 202 to insert.
Referring to fig. 2 and 3, a slide groove 3022 is formed on the upper surface of the fixed block 302, the slide groove 3022 is formed along the axial direction of the case plate 1 when the case plate is wound into a cylindrical shape, and one end of the slide groove 3022 is closed. A bullet 301 slides in the sliding slot 3022,
referring to fig. 3, two opposite groove walls of the sliding groove 3022 are both provided with a limiting groove 304, and the limiting groove 304 is formed along the length direction of the bullet 301. A limiting block 3011 fixedly connected to the warhead 301 slides in each limiting groove 304. The limiting block 3011 is matched with the limiting groove 304 to limit the bullet 301, so that the stability of the bullet 301 during sliding is improved.
Referring to fig. 3, a limiting pressure spring 303 is fixedly connected between the warhead 301 and the groove bottom of the chute 3022, and the limiting pressure spring 303 is pressed between the warhead 301 and the groove bottom of the chute 3022. In order to improve the smoothness when the warhead 301 is inserted into the insertion hole 3012, one end of the warhead 301, which is far away from the limiting pressure spring 303, is in a hemispherical shape, so that the friction force when the warhead 301 is inserted into the insertion hole 3012 is reduced.
During operation, an operator firstly winds the housing plate 1, and then inserts the plug 202 into the locking hole 3021. At this time, the plug 202 presses the bullet 301, the stopper compression spring 303 elastically deforms, and the bullet 301 slides toward the bottom of the chute 3022. Along with the movement of the plug 202, when the axis of the jack 3012 is coaxial with the axis of the bullet 301, the elastic potential energy of the limiting compression spring 303 is released, the elasticity pushes the bullet 301 to be inserted into the jack 3012, the bullet 301 limits the plug 202, and the connection and the locking between the first connecting component 2 and the second connecting component 3 are realized.
Referring to fig. 2, the side wall of the shell plate 1 close to the wide side of the second connecting component 3 is glued with the elastic cushion 105, and after the second connecting component 3 is connected with the first connecting component 2, the elastic cushion 105 is elastically deformed, so that the sealing performance of the protective shell is improved.
Referring to fig. 3, in order to improve the smoothness when the plug 202 presses the bullet 301, one end of the plug 202 away from the mounting block 201 is hemispherical, and the hemispherical arrangement reduces the friction when the plug 202 presses the bullet 301.
Referring to fig. 2, when the spiral duct needs to be repaired, the protective shell needs to be detached, and in order to achieve quick detachment between the first connecting assembly 2 and the second connecting assembly 3, the linkage rod 4 is fixedly connected to each warhead 301.
Referring to fig. 2, the linkage rod 4 includes a first rod 401, a second rod 402, and a third rod 403, and the first rod 401 is fixedly connected to the bullet 301 and is disposed perpendicular to the bullet 301. The second rod 402 is integrally formed at the top end of the first rod 401, and is parallel to the plug 202. A third bar 403 is integrally formed on the end of the second bar 402 remote from the first bar 401, the third bar 403 being arranged perpendicular to the second bar 402. The bottom of the third rod 403 is fixedly connected with a transmission rack 5, and the length direction of the transmission rack 5 is the same as the axial direction of the shell plate 1 when the shell plate is rolled into a cylinder shape.
Referring to fig. 2, a driving gear 501 is arranged on one side of the transmission rack 5 away from the fixed block 302, the supporting rod 102 is fixedly connected to the housing plate 1, the driving gear 501 is rotatably sleeved on the supporting rod 102 through a bearing, and the driving gear 501 is meshed with the transmission rack 5. The upper surface of drive gear 501 is fixedly connected with handle 5011, and handle 5011 provides the point of application of force for operating personnel to rotate drive gear 501, the simple operation.
Referring to fig. 2, a guide bar 103 is fixedly connected to the housing plate 1, and a length direction of the guide bar 103 is the same as a length direction of the transmission rack 5. The upper surface of the guide bar 103 is provided with a guide groove 1031 along the length direction thereof, and a slide bar 104 fixedly connected to the transmission rack 5 slides in the guide groove 1031.
Referring to fig. 2, the guide strip 103 and the slide strip 104 cooperate to provide a guide and a support for the sliding of the driving rack 5, thereby improving the stability of the driving rack 5 during sliding. In order to improve the stability of the slide bar 104 when sliding in the guide slot 1031, the guide slot 1031 is dovetail-shaped, so as to limit the slide bar 104 and reduce the possibility that the slide bar 104 is separated from the guide slot 1031.
The operator rotates the handle 5011, the drive gear 501 rotates, and then the drive gear 501 drives the transmission rack 5 to move towards the end far away from the drive gear 501. The driving rack 5 is linked with the bullet 301, and the bullet 301 moves towards the bottom of the sliding groove 3022, and further moves out of the jack 3012, so that the plug 202 loses the limit. The plug 202 is removed from the locking hole 3021, and the first connecting module 2 and the second connecting module 3 are quickly disassembled.
The implementation principle of the embodiment 1 is as follows:
when installing the protective casing, the operator firstly winds the casing plate 1, then inserts the plug 202 into the locking hole 3021, and in addition, when the axis of the jack 3012 and the axis of the bullet 301 are coaxial, inserts into the jack 3012, and completes the quick installation of the protective casing.
When the protective shell needs to be detached, the operator rotates the handle 5011 to link the driving gear 501, so that the transmission rack 5 is driven to move towards one end far away from the driving gear 501. Meanwhile, the transmission rack 5 is linked with the bullet 301 through the linkage rod 4, the bullet 301 is separated from the jack 3012, then the plug 202 loses the limit and is separated from the locking hole 3021, and quick disassembly is achieved.
Example 2
Referring to fig. 4, the present embodiment is different from embodiment 1 in that the first connecting member 2 and the second connecting member 3 are different.
Referring to fig. 4 and 5, the first connection assembly 2 includes a first connection plate 203, a second connection plate 204, and when the housing plate 1 is rolled into a cylindrical shape, the first connection plate 203 is integrally formed on an inner wall of the housing plate 1 and is disposed perpendicular to the housing plate 1. The second connecting plate 204 is integrally formed on the first connecting plate 203, and the second connecting plate 204 is located on a side of the first connecting plate 203 facing the second connecting assembly 3. When the case plate 1 is rolled into a cylindrical shape, the second connecting plate 204 abuts against the inner wall of the case plate 1.
Referring to fig. 5, the first connecting plate 203 is provided with a locking groove 6, and the locking groove 6 is a through groove. The locking groove 6 includes a first locking groove 601 and a second locking groove 602, and the first locking groove 601 is opened along a length direction of the first connection plate 203. The second locking groove 602 is opened along the length direction of the first connecting plate 203, and the second locking groove 602 is located on the side of the first locking groove 601 facing the second connecting plate 204. The length of the second lock groove 602 is shorter than the length of the first lock groove 601, and the second lock groove 602 communicates with the first lock groove 601.
Referring to fig. 5, the second connecting assembly 3 includes a first clamping piece 305 and a second clamping piece 306, the second clamping piece 306 is fixedly connected to the wide side of the housing plate 1, and the second clamping piece 306 is slidably engaged with the first locking groove 601. The first grip tab 305 is fixedly attached to the side wall of the second grip tab 306 facing away from the housing panel 1.
When the shell plate 1 is rolled into a cylinder shape, and meanwhile, the first connecting assembly 2 and the second connecting assembly 3 are connected to lock the shell plate 1, the first clamping piece 305 slides and is inserted into the first locking groove 601. Then, the second clamping piece 306 and the second locking groove 602 are clamped with each other, and at this time, the side wall of the first clamping piece 305 close to the second clamping piece 306 abuts against the side wall of the first connecting plate 203 away from the second connecting plate 204.
The implementation principle of the embodiment 2 is as follows: when installing the three-way protective housing, the operator first winds the housing plate 1, and at the same time, inserts the first clamping piece 305 into the first lock groove 601 until the second clamping piece 306 enters the first lock groove 601. Next, the operator applies a twisting force to the case plate 1 to cause the second grip tab 306 to enter the second lock groove 602. Pressure is applied to the housing plate 1 again to move the second clamping piece 306 toward the bottom wall of the second locking groove 602 until the second clamping piece 306 abuts against the bottom wall of the second locking groove 602.
At this time, the side wall of the second clamping piece 306 at the wide edge abuts against the groove side wall of the second locking groove 602, and the side wall of the first clamping piece 305 near the second clamping piece 306 abuts against the side wall of the first connecting plate 203 away from the second connecting plate 204. In addition, the second connecting plate 204 abuts against the inner wall of the shell plate 1 which is arranged in a cylindrical shape, and the three-way protection shell is installed and locked.
When the protective casing needs to be disassembled, an operator applies a pulling force to the casing plate 1 to make the second clamping piece 306 leave the second locking groove 602 and enter the first locking groove 601. Then, the operator applies a torsional force to the housing plate 1 until the first tab 305 enters the first lock groove 601, and then applies a pulling force to the housing plate 1 to make the first tab 305 come out from the first lock groove 601, thereby realizing quick detachment.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. The utility model provides a spiral duct tee bend protective housing, includes casing board (1), casing board (1) is the soft board, when the long limit of casing board (1) is coiled into the tube-shape, the lateral wall of two broadsides departments of casing board (1) offsets its characterized in that: the novel packaging box is characterized in that a first connecting assembly (2) is connected to one wide side of the shell plate (1), a second connecting assembly (3) is connected to the other wide side of the shell plate (1), and when the shell plate (1) is coiled into a cylindrical shape, the first connecting assembly (2) and the second connecting assembly (3) can be detachably connected.
2. The three-way protective shell of the spiral duct of claim 1, wherein: the first connecting assembly (2) comprises an installation block (201) and a plug (202), the installation block (201) is fixedly connected to the shell plate (1), the plug (202) is fixedly connected to the side wall of the installation block (201), and when the shell plate (1) is rolled into a cylinder shape, the plug (202) faces the second connecting assembly (3); second coupling assembling (3) are including warhead (301), fixed block (302) fixed connection is in casing board (1), it has spout (3022) that supply warhead (301) to slide to open on fixed block (302), spacing pressure spring (303) of fixedly connected with between the tank bottom of spout (3022) and warhead (301), fixed block (302) are opened towards one side of plug (202) has and is supplied plug (202) male locking hole (3021), it has supply warhead (301) male jack (3012) to open on plug (202).
3. The three-way protective shell of the spiral duct of claim 1, wherein: first coupling assembling (2) and second coupling assembling (3) are provided with a plurality ofly along casing board (1) around the axial behind the batching tube-shape, first coupling assembling (2) and second coupling assembling (3) one-to-one set up.
4. The three-way protective shell of the spiral duct of claim 3, wherein: go up respectively fixedly connected with gangbar (4) on every warhead (301), fixedly connected with driving rack (5) on gangbar (4), the axial syntropy after the roll form is wound with casing board (1) to the length direction of driving rack (5), it is connected with drive gear (501) to rotate on casing board (1), drive gear (501) mesh mutually with driving rack (5).
5. The three-way protective shell of the spiral duct of claim 1, wherein: the first connecting assembly (2) comprises a first connecting plate (203) and a second connecting plate (204), when the shell plate (1) is rolled into a cylinder shape, the first connecting plate (203) is integrally formed on the inner side surface of the shell plate (1), the second connecting plate (204) is integrally formed on one side, away from the shell plate (1), of the first connecting plate (203), the second connecting plate (204) abuts against the inner wall of the shell plate (1), a locking groove (6) is formed in the first connecting plate (203), the locking groove (6) comprises a first locking groove (601) and a second locking groove (602), the second locking groove (602) is located on one side, away from the shell plate (1), of the first locking groove (601), and the second locking groove (602) is communicated with the first locking groove (601); second coupling assembling (3) include first chucking piece (305), second chucking piece (306), when casing board (1) is around the batching tube-shape, second chucking piece (306) fixed connection in casing board (1), first chucking piece (305) fixed connection deviates from one side of casing board (1) in second chucking piece (306), first chucking piece (305) are located second locked groove (602), first chucking piece (305) slide insert establish get into behind first locked groove (601), second chucking piece (306) and second locked groove (602) mutual joint.
6. The three-way protective shell of the spiral duct of claim 2, wherein: an elastic cushion (105) is glued on the side wall of one wide edge of the shell plate (1).
7. The three-way protective shell of the spiral duct of claim 2, wherein: two opposite inner side walls of the sliding groove (3022) are respectively provided with a limiting groove (304), and a limiting block (3011) fixedly connected to the warhead (301) slides in the limiting groove (304).
8. The three-way protective shell of the spiral duct of claim 4, wherein: fixedly connected with gib (103) on casing board (1), the length direction and casing board (1) of gib (103) are around the axial syntropy behind the batching tube-shape, gib (103) are opened along its length direction has guide slot (1031), it has draw runner (104) of fixed connection in transmission rack (5) to slide in guide slot (1031).
9. The three-way protective shell of the spiral duct of claim 2, wherein: the end of the plug (202) departing from the mounting block (201) is hemispherical, and the end of the bullet head (301) far away from the limiting pressure spring (303) is hemispherical.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011550140.8A CN112728276B (en) | 2020-12-24 | 2020-12-24 | Spiral duct tee bend protective housing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011550140.8A CN112728276B (en) | 2020-12-24 | 2020-12-24 | Spiral duct tee bend protective housing |
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| CN112728276A true CN112728276A (en) | 2021-04-30 |
| CN112728276B CN112728276B (en) | 2022-04-01 |
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| CN204942693U (en) * | 2015-09-18 | 2016-01-06 | 北京翼扬环境工程有限公司 | The sound insulation system of valve |
| CN207363792U (en) * | 2017-06-12 | 2018-05-15 | 四川五环石化装备有限公司 | A kind of extremely low fluid pressure loss composite construction denoising device for engine |
| CN209173217U (en) * | 2018-11-07 | 2019-07-30 | 王海庆 | A kind of Medical tee joint protective shell |
| CN209180578U (en) * | 2018-12-17 | 2019-07-30 | 深圳市瑞来建设工程有限公司 | A kind of novel energy saving thermal insulation flame resistant glass cotton plate |
| CN210014188U (en) * | 2019-01-25 | 2020-02-04 | 东莞市竣安消防工程有限公司 | Mounting structure of smoke alarm |
| CN210034750U (en) * | 2019-06-03 | 2020-02-07 | 广州东林建设工程有限公司 | Sewer pipe silencing protective sleeve |
| CN211716056U (en) * | 2019-12-10 | 2020-10-20 | 王丙峰 | Novel pipeline protection is used in gas construction device |
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