CN109066569B - Safety sealing device for railway passenger car cable - Google Patents
Safety sealing device for railway passenger car cable Download PDFInfo
- Publication number
- CN109066569B CN109066569B CN201810986229.5A CN201810986229A CN109066569B CN 109066569 B CN109066569 B CN 109066569B CN 201810986229 A CN201810986229 A CN 201810986229A CN 109066569 B CN109066569 B CN 109066569B
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- Prior art keywords
- cable
- hole
- rubber
- rubber sheet
- bottom plate
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/02—Cable terminations
- H02G15/06—Cable terminating boxes, frames or other structures
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/02—Cable terminations
- H02G15/04—Cable-end sealings
- H02G15/043—Cable-end sealings with end caps, e.g. sleeve closed at one end
- H02G15/046—Cable-end sealings with end caps, e.g. sleeve closed at one end with bores or protruding portions allowing passage of cable conductors
Abstract
The invention relates to the field of railway passenger car accessories, in particular to a safety sealing device for a railway passenger car cable. The purpose is to provide a railway passenger car cable safety sealing device which has simple structure, convenient installation and shock resistance; the technical scheme is as follows: the device comprises a frame, a pressing plate and a bottom plate, wherein the bottom plate is fixed on the back surface of the frame and seals the back surface of the frame, and the pressing plate is arranged in the frame; the pressing plate is movably connected with the bottom plate through a bolt, and a rubber block is arranged between the pressing plate and the bottom plate; the bottom plate is provided with a plurality of first cable holes, the rubber block is provided with a plurality of second cable holes, the pressing plate is provided with a plurality of third cable holes, each first cable hole, each second cable hole and each third cable hole are concentrically arranged to form a cable hole, and each cable hole forms a cable hole group according to different hole diameters. The anti-seismic safety protection device has the characteristics of simple structure, simplicity and convenience in installation, seismic resistance and high protection level.
Description
Technical Field
The invention relates to the field of railway passenger car accessories, in particular to a safety sealing device for a railway passenger car cable.
Background
The cable through-wall parts of the railway passenger cars in China need to be sealed so as to ensure the IP protection levels of the power box and the electric box, protect the normal operation of electrical elements and further ensure the driving safety. Existing cable sealing devices are of two types: one type is a protective connector which can be repeatedly attached and detached, but is troublesome to install, high in cost, and not suitable for cables with large wire diameters. The other type is that two symmetrical compaction modules made of rubber are arranged in the frame, the compaction modules fill the gap of the frame, and then the gap is compacted by a compaction block; although the device can ensure the IP protection grade of the sealing device, the device needs to be stacked layer by layer and coated with lubricating grease and the like during installation, and is very troublesome; in addition, in order to adapt to the installation of cables with different wire diameters, the strippable rubber sheets are arranged on the pressing blocks, so that although the sealing installation of cables with different wire diameters can be met, the strippable rubber sheets need to be reprocessed to be recycled, and the waste of energy and resources is caused.
Disclosure of Invention
The invention aims to provide a railway passenger car cable safety sealing device which is simple in structure, convenient to install and resistant to shock.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: the device comprises a frame, a pressing plate and a bottom plate, wherein the bottom plate is fixed on the back surface of the frame and seals the back surface of the frame, and the pressing plate is arranged in the frame; the pressing plate is movably connected with the bottom plate through a bolt, and a rubber block is arranged between the pressing plate and the bottom plate; the bottom plate is provided with a plurality of first cable holes, the rubber block is provided with a plurality of second cable holes, the pressing plate is provided with a plurality of third cable holes, and each first cable hole, each second cable hole and each third cable hole are concentrically arranged to form a cable hole.
Preferably, the middle of the rubber block along the axial direction of the cable hole is provided with a second rubber sheet, and the front side and the rear side of the second rubber sheet are respectively provided with a first rubber sheet which is symmetrically arranged; the first rubber sheet is provided with a first through hole, the second rubber sheet is provided with a second through hole, the second cable hole is formed by concentrically arranging the first through hole and the second through hole, and the second rubber sheet is made of water-swelling rubber.
Preferably, a plurality of bulges are arranged on two surfaces of the second rubber sheet, and recesses matched with the bulges are arranged on the surface of the first rubber sheet, which is in contact with the second rubber sheet.
Preferably, the first through hole is round table-shaped, the large end of the round table is the outer end, and the diameter of the second through hole is the same as that of the small end of the first through hole.
Preferably, the first cable hole has the same aperture as the third cable hole, and is smaller than the diameter of the large end of the first through hole and larger than the aperture of the second through hole.
Preferably, the hardness of the first rubber sheet is greater than that of the second rubber sheet, and the hardness of the second rubber sheet is 45-55A.
Preferably, the cable protector is connected to the inner side of the cable safety sealing device of the railway passenger car and comprises a base and a fuse, wherein mounting holes are formed in two sides of the base, and a left binding post and a right binding post are fixed at two ends of the base respectively; a clamp spring is arranged between the left wiring terminal and the right wiring terminal and is connected with the left wiring terminal through a conducting strip, the clamp spring is in a necking U shape, the bottom of the clamp spring is fixed on the base, and the side wall of the clamp spring is parallel to the side wall of the base; the cable protector also comprises a left sleeve ring and a right sleeve ring, wherein the inner diameters of the left sleeve ring and the right sleeve ring are larger than the outer diameter of the fuse conducting ring, a plurality of fastening spring pieces are uniformly arranged on the inner walls of the left sleeve ring and the right sleeve ring, and the fastening spring pieces are respectively sleeved outside the conducting rings at two ends of the fuse; the left lantern ring is provided with two fixing pieces which are distributed in an inverted V shape, and the fixing pieces are in sliding fit with the lower end of the inner side of the clamp spring; the right lantern ring is connected with the right wiring terminal through a spring conducting strip; an elastic limiting piece is further fixed on the end of the conducting piece connected with the clamp spring, and the elastic limiting piece inclines towards the conducting piece.
Preferably, the cable holes form a cable hole group according to different hole diameters, and the hole diameters of the second through holes are arranged in an equal ratio series with a common ratio equal to 0.7.
Preferably, a cylindrical plug is also adapted, and the outer diameter of the plug is larger than the aperture of the second through hole and smaller than the diameter of the large end of the first through hole.
Preferably, one end of the plug is provided with a pull ring, and the bolt is a hexagon socket head cap bolt.
The beneficial technical effects of the invention are as follows: the bottom plate is fixed closely at the frame back, is provided with the clamp plate in the frame, and the clamp plate passes through bolt and bottom plate swing joint, is provided with the block rubber between clamp plate and the bottom plate, and clamp plate, bottom plate, block rubber are provided with cable hole, simple structure. When the cable protection device is used, a cable penetrates through the cable hole, the rubber block can be pressed and deformed by screwing the bolt, and the cable is firmly wrapped by the deformation of the rubber block, so that the cable protection device has a high ip protection grade; the rubber has good elasticity, so that the single cable hole can use cables within a certain wire diameter range by singly utilizing the deformation of the rubber; meanwhile, the cable is sealed and fixed through the rubber block, and the rubber has good vibration absorption capacity, so that the cable sealing device has good anti-seismic performance. In the installation process, only threading and screwing the bolts on the pressing plate are needed, the pressing module is not required to be accumulated, the lubricating function is not required to be brushed, the pressing block is not required to be adjusted, the installation process is simple, and the operation is convenient. In addition, a plurality of groups of sealing devices with different apertures are arranged, so that the sealing device is suitable for sealing occasions where cables with larger line diameter differences exist at the same time. Therefore, the invention has the characteristics of simple structure, simple and convenient installation, shock resistance and high protection grade.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a schematic side view of the present invention;
FIG. 3 is a schematic view of a platen of the present invention;
FIG. 4 is a front view of a second rubber sheet of the present invention;
FIG. 5 is a schematic side view of a second rubber sheet according to the present invention;
FIG. 6 is a front view of a first rubber sheet of the present invention;
FIG. 7 is a schematic side view of a first rubber sheet of the present invention;
FIG. 8 is a schematic view of a base plate of the present invention;
FIG. 9 is a schematic view of a cable protector of the present invention;
FIG. 10 is a schematic view of the left collar and the clamp spring of the present invention;
fig. 11 is a schematic view of the plug of the present invention.
Detailed Description
Referring to fig. 1 to 11, the railway passenger car cable safety sealing device comprises a frame 1, a pressing plate 2 and a bottom plate 4, wherein the bottom plate 4 is fixed on the back surface of the frame 1 and seals the back surface of the frame 1, and the pressing plate 2 is smaller than a square frame of the frame 1 in size and is arranged in the frame 1; the pressing plate 2 is connected with the bottom plate 4 through a bolt 5, and a rubber block 3 is arranged between the pressing plate 2 and the bottom plate 4; the bottom plate 4 is provided with a plurality of first cable holes 41, the rubber block 3 is provided with a plurality of second cable holes 33, the pressing plate 2 is provided with a plurality of third cable holes 21, and each of the first cable holes 41, the second cable holes 33 and the third cable holes 21 are concentrically arranged to form a cable hole.
Specifically, the frame 1 has a certain thickness, the size of the bottom plate 4 is slightly larger than that of the inner frame of the frame 1, and the bottom plate can be fixed on the back of the frame 1 in a welding or screwing mode; the size of clamp plate 2 slightly is lighter than the inside casing size of frame 1, and the size of block rubber 3 slightly is lighter than the size of clamp plate 2, prevents that clamp plate 2 from overflowing from the gap of clamp plate 2 and frame 1 when compressing tightly block rubber 3. The bottom plate 4 is provided with a screw hole 42 matched with the bolt 5, the rubber block 3 is provided with a second through hole 34 for the bolt 5 to pass through, the pressing plate 2 is provided with a first through hole 51 for the bolt 5 to pass through, and the threaded end of the bolt 5 sequentially passes through the first through hole 51 and the second through hole 34 to be in threaded connection with the screw hole 42. The rubber block 3 can be compressed to deform by screwing the bolt 5, so that the cable hole is deformed to firmly hold the cable 100, the installation and the sealing of the cable 100 are realized, a good anti-seismic effect is achieved, and in addition, the single cable hole can use the cable within a certain wire diameter range by utilizing the deformation of the rubber; and the loosening bolt 5 resets the pressing plate 2 through the elasticity of the rubber block 3, so that the installation and replacement operations of the cable are convenient.
Further, the middle part of the rubber block 3 along the axial direction of the cable hole is provided with a second rubber sheet 32, and the front side and the rear side of the second rubber sheet 32 are respectively provided with a first rubber sheet 31 which are symmetrically arranged; the first rubber sheet 31 is provided with a first through hole 36, the second rubber sheet 32 is provided with a second through hole 35, the second cable hole 33 is formed by concentrically arranging the first through hole 36 and the second through hole 35, and the second rubber sheet 32 is made of water-swelling rubber. It can be understood that the rubber block 3 is formed by two first rubber sheets 31 and a second rubber 32, and the first rubber sheets 31 and the second rubber 32 are provided with corresponding holes to form a second cable hole 33; the second rubber sheet 32 is located in the middle of the rubber block 3 and plays a key role in sealing, and the second rubber sheet 32 is made of water-swelling rubber, so that when the cable sealing device encounters water, the second rubber sheet 32 automatically swells to enhance the waterproof performance of the cable sealing device.
Further, a plurality of protrusions 38 are disposed on two surfaces of the second rubber sheet 32, and recesses 39 matched with the protrusions 38 are disposed on the surface of the first rubber sheet 31 contacting the second rubber sheet 32. Set up like this, can increase the frictional force between first sheet rubber 31 and the second sheet rubber 32 to impel clamp plate 2 when extrudeing first sheet rubber 31 and second sheet rubber 32, there is not relative displacement production between the two, also make first through-hole 36, the deformation of second through-hole 35 more even, ensure that second cable hole 33 is even to cable 100 centre gripping dynamics, prevent clamp plate 2 at the in-process that compresses tightly, partial second cable hole 33 is too tight to the centre gripping of cable 100, and another part is too loose to the centre gripping of cable 100, improve the reliability of device.
Further, the first through hole 36 is circular truncated cone-shaped, the large end of the circular truncated cone is the outer end, and the diameter of the second through hole 35 is the same as the diameter of the small end of the first through hole 36. It should be understood that, with the arrangement, the cable hole is changed into a Chinese-style hole with two large ends and a small middle section, so that the cable can conveniently and quickly pass through the cable hole, and the installation and replacement efficiency of the cable is improved.
Further, the first cable hole 41 and the third cable hole 21 have the same diameter, and are smaller than the diameter of the large end of the first through hole 36 and larger than the diameter of the second through hole 35. Specifically, the diameters of the third cable hole 21 and the first cable hole 41 through which the cable passes on the pressing plate 2 and the bottom plate 4 are the same, so that the pressing plate 2 and the bottom plate 4 can be matched (assembled together to finish the processing of the holes on the two plates at one time) when hole processing is performed on the pressing plate 2 and the bottom plate 4, the coaxiality of the third cable hole 21 and the first cable hole 41 is ensured, the cable is ensured not to be bent when being installed, the processing efficiency of the cable sealing device is improved, and the processing cost is reduced. And the aperture of the first through hole 36 is smaller than the diameter of the large end of the first through hole, so that when the pressing plate 2 and the bottom plate 4 extrude the rubber block 3, the rubber cannot protrude from the first cable hole 41 and the third cable hole 21, the stroke of the pressing plate 2 is shortened, and the installation efficiency is improved. In addition, their aperture is larger than that of the second through hole 35 so that the cable can pass through more easily.
Furthermore, the hardness of the first rubber sheet 31 is greater than that of the second rubber sheet 32, that is, the rigidity of the first rubber sheet 31 is greater than that of the second rubber sheet 32, so that the second rubber sheet 32 with the largest deformation quantity enables the pressing plate 2 to be tightly attached to the cable in the process of approaching the bottom plate 4, and the sealing reliability of the cable sealing device is further improved. In addition, the hardness of the second rubber sheet 32 is 45-55A, and it can be understood that the sealing and fixing of the cable are mainly completed by the elastic deformation of the second rubber sheet 32, and if the hardness of the second rubber sheet 32 is too high, a larger force is required to compress the second rubber sheet 32, so that the installation is laborious; if the hardness of the second rubber sheet 32 is too low, the cable is easily biased to one side, the sealing performance cannot be ensured, and meanwhile, the too soft rubber has poor elasticity and weak vibration absorption capability, and cannot achieve a good anti-vibration effect.
Further, the cable protector 80 is connected to the inner side of the safety sealing device of the cable of the railway passenger car, the cable protector 80 comprises a base 81 and a fuse 82, mounting holes 83 are formed in two sides of the base 81, and a left binding post 84 and a right binding post 85 are respectively fixed at two ends of the base 81; a clamp spring 86 is arranged between the left wiring terminal 84 and the right wiring terminal 85, the clamp spring 86 is connected with the left wiring terminal 84 through a conducting strip 87, the clamp spring 86 is in a necking U shape, the bottom of the clamp spring 86 is fixed on the base 81, and the side wall of the clamp spring 86 is parallel to the side wall of the base 81; the cable protector 80 further comprises a left sleeve ring 93 and a right sleeve ring 94, wherein the inner diameters of the left sleeve ring 93 and the right sleeve ring 94 are larger than the outer diameter of the conductive ring of the fuse 82, a plurality of fastening spring pieces 95 are uniformly arranged on the inner walls of the left sleeve ring 93 and the right sleeve ring 94, and the fastening spring pieces are respectively sleeved outside the conductive rings at two ends of the fuse 82; the left lantern ring 93 is provided with two fixing pieces 96 which are distributed in an inverted V shape and are in sliding fit with the lower end of the inner side of the clamp spring 86; the right lantern ring 94 is connected with the right binding post 85 through a spring conducting strip 97; an elastic limiting piece 103 is further fixed on the end of the conducting piece 87 connected with the clamp spring 86, and the elastic limiting piece 103 inclines towards the conducting piece 87.
Specifically, the cable protector 80 is connected with a railway passenger car cable safety sealing device through the cable 100, so that the cable protector also has the function of protecting the cable, and does not need to be installed in a junction box and a comprehensive control cabinet, a base 81 of the cable protector 80 is cuboid, lugs are arranged on two sides of the base, and installation holes 83 are formed in the lugs to facilitate installation of a railway passenger car power supply line protection device; the left binding post 84 and the right binding post 85 are used for installing and fixing cables, generally adopt binding posts formed by combining screws and a binding frame, and facilitate quick installation and disassembly of the cables. The bottom of the snap spring 86 is fixed or embedded in a position close to the left wiring terminal 84 through a bolt, the cross section of the snap spring is in a necking U shape, namely the upward positions of two side walls of the snap spring 86 are recessed, the upper part of the snap spring is in a bottomless V shape, and the lower part of the snap spring is in an inverted bottomless V shape; meanwhile, the side wall of the snap spring 86 is parallel to the side wall of the base 81, namely, the necking U-shaped section of the snap spring 86 is parallel to two end faces of the base 81, so that when the left lantern ring 93 is pressed in, the axis of the left lantern ring 93 is parallel to the side edge of the base 81.
The conductive sheet 87 is fixed to the base 81 by bolts or embedded directly in the base 81. The lower end of the left lantern ring 93 is provided with a fixing piece 96 which is distributed in an inverted V shape and can be attached to the lower part of the clamp spring 86; in addition, the left sleeve ring 93 and the right sleeve ring 94 are made of metal and are sleeved on the conductive rings at two ends of the fuse 82, the fastening spring piece 95 is arranged inside the left sleeve ring 93 and the right sleeve ring 94, the surface of the fastening spring piece contacting with the conductive rings of the fuse 82 is attached to the conductive rings, and radial vibration of the fuse 82 can be absorbed. Spring conducting strip 97 one end is fixed on right terminal 85, and the other end and the lower extreme fixed connection of right lantern ring 94, and the spacing piece 103 cooperation of elasticity can absorb the axial vibration of fuse 82, so the vibration homoenergetic of fuse 82 all directions can be absorbed, therefore cable protector 80's antidetonation is effectual, the reliability is high.
When the cable protector is installed, the cable protector firstly passes through the installation hole 83 through a bolt and is fixed in a junction box or a comprehensive control cabinet; then the cable 100 is respectively fixed on the left binding post 84 and the right binding post 85; then insert the one end of fuse 82 in the right lantern ring 94, fix it through fastening spring piece 95, then use left lantern ring 93 cover the other end at fuse 82, fix its conductive ring in left lantern ring 93, wherein the central line of two stationary blades 96 on the left lantern ring 93 is vertical downwards, press left lantern ring 83 into jump ring 86 at last, can accomplish the installation of power supply line protection device, consequently the installation is simple convenient, swift. It will be appreciated that the fuse 82 needs to be mounted in the same direction as the direction of the current.
In the process of pressing the left sleeve ring 93, the end of the fixing piece 96 is firstly contacted with two sides of the opening at the upper end of the snap spring 86, and along with the downward movement of the left sleeve ring 93, the end of the fixing piece 96 slides on the side wall of the snap spring 86 and pushes away the two side walls of the snap spring 86 until the fixing piece 96 reaches the necking part of the snap spring 86. When the end of the fixing piece 96 passes through the necking part of the snap spring 86, the two side walls of the snap spring 86 begin to rebound through elasticity, and meanwhile, the outer side of the fixing piece 86 begins to contact the elastic limiting piece 103 and compress the elastic limiting piece 103. When the fixing piece 96 completely enters the lower part of the necking of the snap spring 86, the two sides of the snap spring 86 are restored to the original state; the left collar 93 is loosened, the fixing piece 96 is limited in the left collar by the necking of the snap spring 86, and in addition, the elastic limiting piece 103 and the spring conducting piece 97 limit the axial degree of freedom of the fuse 82, so that the fuse 82 is fixed. When changing fuse 82, only need expand the necking down of jump ring 86, press the spacing piece of elasticity 103, through spring conducting strip 97 alright pop out the left lantern ring to change. Therefore, the fuse 82 can be replaced quickly and conveniently.
Furthermore, each cable hole forms a cable hole group according to different aperture, so that the cable sealing device is applicable to the sealing occasions with cables with larger line diameter difference, and the application range of the cable sealing device is widened. The aperture of the second through hole 35 is arranged according to an geometric series with a common ratio equal to 0.7, that is, the minimum diameter of the cable hole is arranged according to an geometric series with a common ratio equal to 0.7, that is, the ratio of the minimum diameter of the cable hole with a small cable hole to the minimum diameter of the cable hole with a large cable hole with a similar size is 0.7, if the ratio is too large, the cable hole to be sealed has a large difference, the cable hole needs to be customized, if the ratio is too small, the usable cable hole does not have continuity, and meanwhile, the distance between the pressure plate 2 and the bottom plate 4 needs to be shorter, so that the rubber block 3 has the possibility of plastic deformation, and therefore, the ratio is too large and too small, which leads to the narrowing of the applicable range of the cable sealing device; setting to 0.7 thus ensures the range of use of the cable sealing device, also reduces the amount of compression of the rubber block 3, preventing permanent plastic deformation of the rubber block 3.
Further, a cylindrical plug 6 is adapted, and the outer diameter of the plug 6 is larger than the aperture of the second through hole 35 and smaller than the diameter of the large end of the first through hole 36. Obviously, the cable hole can be sealed by inserting the plug 6 into the cable hole, so as to ensure that the cable sealing device still has sealing performance under the condition that the cable hole is not completely used. When the corresponding cable hole needs to be used, the plug 6 is pulled out, and the operation is simple and rapid.
Furthermore, one end of the plug 6 is provided with a pull ring 7, so that a reliable acting point is provided for the plug 6 to be pulled out, the plug 6 is conveniently pulled out, and the efficiency of installing and replacing the cable is improved. The bolts 5 are inner hexagon bolts, and the positions of the pressure plates 2 are adjusted by using the inner hexagon bolts, so that bolt sliding angles can be prevented, and the durability of the bolts 5 is improved; on the other hand, tools such as an electric screwdriver and the like are conveniently used for completing the sealing of the sealing device, so that the installation and replacement efficiency of the cable is improved; further, the use of the hexagon socket head cap screw can be made lower than the outer surface of the frame 1 without interfering with other positions.
During the use, install frame 1 in railway vehicle's power supply box, branch box, floor etc. and need use cable sealing device's place, then wear out cable 100 cable hole in proper order, treat all cables and all pass the back, screw up bolt 5 until all cables all with the inseparable laminating in cable hole, at last at installation cable protector 80. And selecting a plug 6 with proper size to plug in the redundant cable holes. When the cable needs to be replaced, the bolt 5 is loosened, the corresponding cable is pulled out, a new cable is inserted, and the bolt 5 is screwed.
Claims (9)
1. The utility model provides a railway vehicle cable safety seal device, includes frame (1), clamp plate (2), bottom plate (4), its characterized in that: the bottom plate (4) is fixed on the back of the frame (1) and seals the back of the frame (1), and the pressing plate (2) is arranged in the frame (1);
the pressing plate (2) is connected with the bottom plate (4) through a bolt (5), and a rubber block (3) is arranged between the pressing plate (2) and the bottom plate (4);
the bottom plate (4) is provided with a plurality of first cable holes (41), the rubber block (3) is provided with a plurality of second cable holes (33), the pressing plate (2) is provided with a plurality of third cable holes (21), and each first cable hole (41), each second cable hole (33) and each third cable hole (21) are concentrically arranged to form a cable hole;
the middle part of the rubber block (3) along the axial direction of the cable hole is provided with a second rubber sheet (32), and the front side and the rear side of the second rubber sheet (32) are respectively provided with a first rubber sheet (31) which are symmetrically arranged;
first sheet rubber (31) is provided with first through-hole (36), second sheet rubber (32) is provided with second through-hole (35), second cable hole (33) comprise first through-hole (36), the concentric setting of second through-hole (35), second sheet rubber (32) are made by meeting water inflation rubber.
2. The railway car cable safety seal of claim 1, wherein: a plurality of bulges (38) are arranged on two surfaces of the second rubber sheet (32), and notches (39) matched with the bulges (38) are arranged on the surface, in contact with the second rubber sheet (32), of the first rubber sheet (31).
3. The railway car cable safety seal of claim 2, wherein: the first through hole (36) is round platform-shaped, the large end of the round platform is the outer end, and the diameter of the second through hole (35) is the same as that of the small end of the first through hole (36).
4. The railway car cable security seal of claim 3, wherein: the aperture of the first cable hole (41) is the same as that of the third cable hole (21), and is smaller than the diameter of the large end of the first through hole (36) and larger than that of the second through hole (35).
5. The railway car cable security seal of claim 4, wherein: the hardness of the first rubber sheet (31) is greater than that of the second rubber sheet (32), and the hardness of the second rubber sheet (32) is 45-55A.
6. The railway car cable safety sealing device of any one of claims 1 to 5, wherein: the cable protector (80) is connected to the inner side of the safety sealing device of the cable of the railway passenger car, the cable protector (80) comprises a base (81) and a fuse (82), mounting holes (83) are formed in two sides of the base (81), and a left binding post (84) and a right binding post (85) are respectively fixed to two ends of the base;
a clamp spring (86) is arranged between the left wiring terminal (84) and the right wiring terminal (85), the clamp spring (86) is connected with the left wiring terminal (84) through a conducting strip (87), the clamp spring (86) is in a necking U shape, the bottom of the clamp spring is fixed on the base (81), and the side wall of the clamp spring (86) is parallel to the side wall of the base (81);
the cable protector (80) further comprises a left sleeve ring (93) and a right sleeve ring (94), wherein the inner diameters of the left sleeve ring (93) and the right sleeve ring (94) are larger than the outer diameter of the conductive ring of the fuse (82), a plurality of fastening spring pieces (95) are uniformly arranged on the inner walls of the left sleeve ring and the right sleeve ring, and the fastening spring pieces are respectively sleeved outside the conductive rings at two ends of the fuse (82);
the left lantern ring (93) is provided with two fixing pieces (96) which are distributed in an inverted V shape, and the fixing pieces are in sliding fit with the lower end of the inner side of the clamp spring (86); the right lantern ring (94) is connected with a right binding post (85) through a spring conducting strip (97);
an elastic limiting piece (103) is further fixed on the end, connected with the clamp spring (86), of the conducting piece (87), and the elastic limiting piece (103) inclines towards the conducting piece (87).
7. The railway car cable security seal of claim 3, wherein: the cable holes form cable hole groups according to different hole diameters, and the hole diameters of the second through holes (35) are arranged according to an equal ratio number sequence with a common ratio equal to 0.7.
8. The railway car cable security seal of claim 7, wherein: a cylindrical plug (6) is also adapted, and the outer diameter of the plug (6) is larger than the aperture of the second through hole (35) and smaller than the diameter of the large end of the first through hole (36).
9. The railway car cable security seal of claim 8, wherein: one end of the plug (6) is provided with a pull ring (7), and the bolt (5) is an inner hexagon bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810986229.5A CN109066569B (en) | 2018-08-28 | 2018-08-28 | Safety sealing device for railway passenger car cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810986229.5A CN109066569B (en) | 2018-08-28 | 2018-08-28 | Safety sealing device for railway passenger car cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109066569A CN109066569A (en) | 2018-12-21 |
| CN109066569B true CN109066569B (en) | 2019-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810986229.5A Active CN109066569B (en) | 2018-08-28 | 2018-08-28 | Safety sealing device for railway passenger car cable |
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|---|---|---|---|---|
| CN202917654U (en) * | 2012-12-06 | 2013-05-01 | 浙江双良汽车零部件有限公司 | General quick coupling |
| CN203522105U (en) * | 2013-11-07 | 2014-04-02 | 田伟 | Self-sealing type cable sealing gland head |
| CN205140919U (en) * | 2015-12-05 | 2016-04-06 | 乐清市金龙电子实业有限公司 | Fuse unit |
| CN206225964U (en) * | 2016-11-18 | 2017-06-06 | 江苏华阳重工股份有限公司 | High pressure resistant deep sea cable stuffing seal |
| CN207705595U (en) * | 2017-11-30 | 2018-08-07 | 安徽广祺智能电器股份有限公司 | A kind of anti-condensation ring main unit and distribution system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109066569A (en) | 2018-12-21 |
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