CN111541204B - Underground branch wiring pipe of buried line - Google Patents
Underground branch wiring pipe of buried line Download PDFInfo
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- CN111541204B CN111541204B CN202010359384.1A CN202010359384A CN111541204B CN 111541204 B CN111541204 B CN 111541204B CN 202010359384 A CN202010359384 A CN 202010359384A CN 111541204 B CN111541204 B CN 111541204B
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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
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/06—Joints for connecting lengths of protective tubing or channels, to each other or to casings, e.g. to distribution boxes; Ensuring electrical continuity in the joint
- H02G3/0616—Joints for connecting tubing to casing
- H02G3/0625—Joints for connecting tubing to casing with means for preventing disengagement of conductors
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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
- H02G15/013—Sealing means for cable inlets
Abstract
The invention provides an underground branch junction tube of a buried wire, which comprises an introduction section, a leading-out section, a connecting part and branch sections, wherein the connecting part is communicated between the introduction section and the leading-out section, the branch sections are communicated with the connecting part, and the number of the branch sections is at least one. The device solves the technical problems of underground multi-branch wiring and insulation effective treatment of the buried line, can greatly improve the construction progress, effectively reduces the cost and the power consumption, and reduces the damage of electric power facilities.
Description
Technical Field
The invention relates to the technical field of power line paving consumables, in particular to an underground branch junction tube of an underground buried line.
Background
The electric power threading pipe is mainly suitable for the threading protection of electric power engineering cables, telecommunication cables and traffic communication cables, and relates to the fields of petroleum, chemical engineering, urban construction and the like.
At present, common pipes on the market mainly comprise steel pipes and plastic pipes. The steel pipe is mainly made of hot galvanized steel pipe, and although the strength of the common steel pipe is high, the common steel pipe is easy to rust and is easy to be polluted, and the service life of the steel pipe is short. The plastic pipe is made of materials such as MPP, PE, PVC and the like, has good corrosion resistance and strong smoothness, is easily deformed under the influence of temperature, is relatively fragile and is easy to break. Composite pipes, such as internally and externally plastic coated steel pipes, have also appeared in recent years. The plastic-coated steel pipe inside and outside is produced by the plastic-coated technology, and the plastic coating is carried out inside and outside, so that the steel pipe has better corrosion resistance, certain strength and longer service life.
At present, along with the development of agricultural mechanization, a large number of power pipelines are required to be laid in farmlands, the pipelines with the diameter of 110 mm-250 mm are generally adopted, in the process of buried line construction and rush-repair, because the current wiring pipes are linear wiring pipes, when branch wiring is met, insulation cannot be effectively processed during underground connection, only an underground wiring well or a ground branch wiring box can be built, not only is the cost and the labor consumed, but also the construction difficulty is increased, and because ground protrusions are increased, the mechanical operation of the farmlands is influenced to a certain degree.
Therefore, an underground branch junction tube of an underground line is urgently needed at present.
Disclosure of Invention
The technical problem to be solved by the invention is to provide an underground branch wiring pipe of an underground line, which can provide corresponding protection for a power line when the underground line needs to be branched.
In order to solve the technical problems, the technical scheme of the invention is as follows: the underground branch junction tube of the buried line comprises an introduction section, a leading-out section, a connecting part and branch sections, wherein the connecting part is communicated between the introduction section and the leading-out section, the branch sections are communicated with the connecting part, and the number of the branch sections is at least one.
Further: the branch section is provided with an outlet end, and a sealer is arranged on the branch section.
Further: the sealer comprises a sealer main body, wherein the sealer main body is cylindrical, an external thread is arranged on the cylindrical surface of the sealer main body, and a nut is connected to the external thread; the sealing device comprises a sealing device body and is characterized in that a main sliding groove is further formed in the cylindrical surface of the sealing device body, the main sliding groove is intersected with an inner cavity of the branch section, a main sliding block is connected inside the main sliding groove in a sliding mode, the outer side face of the main sliding block is a wedge face, and the inner side face of the main sliding block is fixedly connected with an elastic sealing block.
Further: the small end of the wedge surface of the main sliding block is provided with a convex block, the side surface of the convex block is provided with a sliding pin, the sealer main body is provided with an upper sliding groove matched with the sliding pin, and the direction of the upper sliding groove is the same as the moving direction of the main sliding block.
Further: the width of the bump is not greater than 2/3 of the main slider width.
Further: the middle line of the bottom surface width of the main sliding groove is intersected with the width midpoint of the section of the inner cavity of the branch section, the width of the main sliding groove is not less than 1.1 times of the width of the section of the inner cavity of the branch section, and the sealing block and the main sliding groove are equal in width.
Further: the number of the main sliding grooves is more than two, in addition, the number of the main sliding blocks corresponds to that of the main sliding grooves one to one, and the moving direction of each main sliding block is all perpendicular to the axis of the cylindrical surface of the sealer main body.
Further: the sealing block is provided with more than two sealing teeth, the sealing teeth are arranged at intervals along the axial direction of the cylindrical surface of the sealer main body, and two groups of sealing teeth belonging to any two sealing blocks are arranged in a staggered mode.
Further: the seal teeth are in a convex arc shape A in the radial line direction of the cylindrical surface of the sealer main body.
Further: the seal tooth is in a circular arc shape B in the axis direction of the cylindrical surface of the sealer main body, and the diameter of the circular arc shape B is larger than or equal to the width of the section of the inner cavity of the branch section.
By adopting the technical scheme, the invention has the following beneficial effects:
1. the invention adopts the technical scheme that the underground branch wiring pipe comprises an introduction section and an extraction section, and also comprises a connecting part and branch sections, wherein the connecting part is communicated between the introduction section and the extraction section, the branch sections are communicated with the connecting part, and the number of the branch sections is at least one, so that the underground branch wiring pipe of the underground branch wiring pipe can be used for manufacturing wiring pipes made of different materials into three branches, four branches, five branches and other different types and different specifications, and can be selected and used according to the actual situation on site, and can be subjected to compression joint and insulation recovery as a straight line wiring pipe. Therefore, the technical problems of underground multi-branch wiring and insulation effective treatment of the buried line are solved, the construction progress can be greatly improved, the cost and the power consumption are effectively reduced, and the damage of electric facilities is reduced. In addition, the device also has the advantages of convenient and quick connection, good insulation treatment effect, no occupation of farmland, no influence on the mechanized operation of the farmland, effective reduction of the external force damage of power equipment, and reduction of the rush repair strength of the equipment.
2. According to the technical scheme, the branch section is provided with the wire outlet end, and the sealer is arranged on the branch section, so that the device can isolate the outside from the inner space of the wiring pipe, and prevent outside rainwater, animals, sundries or pollutants from entering the pipe, so that rats and ants can be prevented from entering the pipe to nest and gnaw cables, or prevent corrosion substances from entering the pipeline to corrode the cables, which is particularly important for buried pipelines in construction operation in farmland fields, and the sealer is arranged, so that the device is significant.
3. According to the technical scheme, the sealer comprises a sealer main body, the sealer main body is cylindrical, the cylindrical surface of the sealer main body is provided with an external thread, the external thread is connected with a nut, the cylindrical surface of the sealer main body is also provided with a main sliding chute, the main sliding chute is intersected with an inner cavity of the branch section, a main sliding block is connected in the main sliding chute in a sliding mode, the outer side face of the main sliding block is a wedge face, and the inner side face of the main sliding block is fixedly connected with an elastic sealing block.
4. According to the technical scheme, the convex block is arranged at the small end of the wedge surface of the main sliding block, the sliding pin is arranged on the side surface of the convex block, the upper sliding groove matched with the sliding pin is arranged on the sealer main body, and the direction of the upper sliding groove is the same as the moving direction of the main sliding block, so that the device can solve the problem that the main sliding block is unsmooth in movement when the nut extrudes the wedge surface. Because the wedge face tip (being the upper end in the drawing) of main slider is when generally not getting into the closure main part, only a small part of fitting surface can with main spout contact, especially to the top of main slider worst, so after the nut is in the extrusion wedge face, because main slider top supports unfavorable, even if do not cause main slider to topple over, also can make main slider top contact stress too big and damage equipment, and the motion stumbles. And the sliding pin shown in the figure is arranged at the top of the main sliding block (namely the small end of the wedge surface), so that the problem of overlarge toppling trend of the top end of the main sliding block can be prevented, the smoothness of the movement of the main sliding block is improved, and the reliability of the action of the equipment is ensured.
5. According to the invention, by adopting the technical scheme that the width of the bump is not more than 2/3 of the width of the main sliding block, the structure of the device is more compact and reasonable. Because the top end of the main sliding block is in overlapped contact with the main body of the sealer as little as possible in order to increase the stroke, and the sliding pin needs enough volume (namely enough strength is required) to interact with the upper sliding groove, the contradiction is most prominent particularly when the main sliding block is wide and the diameter of the excircle of the main body of the sealer is small, and the projection is smaller than 2/3 of the width of the sliding block, so that the projection has enough volume to arrange the sliding pin, and the structural layout of the device is compact and reasonable.
6. According to the invention, through the technical scheme that the center line of the bottom surface width of the main sliding groove is intersected with the width midpoint of the section of the inner cavity of the branch section, the width of the main sliding groove is not less than 1.1 times of the section width of the inner cavity of the branch section, and the sealing block and the main sliding groove are equal in width, the sealing tightness of the device is better, because the sealing block has elasticity, if the sealing block is blocked by a cable in the middle of the pipe, the parts on two sides of the sealing block are close to the middle after being extruded, if no allowance exists, the inner cavity of the branch section can not be sealed, and most conditions can be met after the sealing block is set to be 1.1 times.
7. According to the technical scheme, the number of the main sliding grooves is more than two, the number of the main sliding blocks corresponds to that of the main sliding grooves one to one, and the moving directions of the main sliding blocks are all perpendicular to the axis of the cylindrical surface of the sealer main body, so that the device can be used for plugging in multiple directions, and the plugging effect is better.
8. According to the technical scheme, the sealing block is provided with more than two sealing teeth, the sealing teeth are arranged at intervals along the axial direction of the cylindrical surface of the sealer main body, and two groups of sealing teeth belonging to any two sealing blocks are arranged in a staggered mode, so that the sealing effect of the device can be further enhanced, and a labyrinth sealing effect is formed among the sealing teeth.
9. According to the technical scheme, the sealing teeth are arranged in the radial line direction of the cylindrical surface of the sealer main body and are in the shape of the convex arc A, so that the device is more reliable in operation, the sealing teeth of different groups can possibly be mutually clamped when being crossed, the movement of the sealing teeth is blocked, and the sealing teeth can generate a self-guiding effect after the arc shape is arranged, so that the phenomenon of mutual interference and blocking is prevented.
10. According to the technical scheme, the seal tooth is in the shape of the arc B in the axis direction of the cylindrical surface of the sealer main body, and the diameter of the arc B is larger than or equal to the width of the section of the inner cavity of the branch section, so that the seal tooth of the device can form a locking effect, a cable at the center of the wire connecting pipe can be locked from two sides in a surrounding manner, the cable is positioned on one hand, subsequent installation is facilitated, the sealing effect is better on the other hand, and the problem that the two sides of the elastic seal block are folded towards the center after the middle part of the elastic seal block is compressed is solved.
Drawings
FIG. 1 is a front view showing a schematic structure of embodiment 1 of the present invention;
FIG. 2 is a front view showing a schematic structure of embodiment 2 of the present invention;
FIG. 3 is a front view showing a schematic structure of embodiment 3 of the present invention;
FIG. 4 is a front view showing the structure of embodiment 4 of the present invention;
FIG. 5 is a schematic cross-sectional view of the construction of the closure of the present invention;
FIG. 6 is a cross-sectional view A-A of FIG. 5;
FIG. 7 is a schematic left side elevational view of the closure of the present invention;
the sealing device comprises a 1-leading-in section, a 2-connecting section, a 3-branching section, a 4-leading-out section, a 5-sealer, a 6-leading-out end, a 7-sealer main body, an 8-upper sliding groove, a 9-sealing tooth, a 10-external thread, a 11-nut, a 12-main sliding block, a 13-wedge surface, a 14-matching surface, a 15-main sliding groove, a 16-arc A, a 17-sealing groove, an 18-sealing block, a 19-bump, a 20-sliding pin and a 21-arc B.
Detailed Description
It should be noted at the outset that the discussion of any embodiment of the present invention is illustrative only and is not intended to suggest that the scope of the present disclosure (including the claims) is limited to these examples; there are many other variations of the different aspects of the invention as described above which are not provided in detail for the sake of brevity. Accordingly, other embodiments are within the scope of the following claims.
In addition, the drawings in the following description are only preferred embodiments of the present invention, and it is obvious to those skilled in the art that other drawings can be obtained based on the drawings without inventive efforts. In addition, the present invention is not limited to these embodiments, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Furthermore, in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced in other ways than those described herein, and it will be apparent to those of ordinary skill in the art that the present application is not limited by the specific embodiments disclosed below.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., is typically an orientation or positional relationship based on a coordinate system shown in the front view of the device itself or the corresponding sub-component, and that the set of coordinate systems will not rotate with it when other directional views are discussed. In addition, in the case of a rod-like or elongated member, the term "front end" and the term "head" have the same meaning, and the term "rear end" and the term "tail end" and the term "end" have the same meaning. Rather, the foregoing directional terms are used merely to facilitate describing the present application and to simplify the description, and they do not indicate or imply that the apparatus or component being referred to must have a particular orientation or be constructed and operated in a particular orientation without having been stated to the contrary or otherwise specified, and therefore should not be considered limiting of the scope of the present application; further, the terms "inner and outer" with respect to orientation refer to the inner and outer relative to the profile of the respective component itself.
Furthermore, spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", etc. are used to define the components, and are only used to facilitate distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, especially, have no special meaning in "main, secondary" or arrangement order, and therefore, should not be construed as limiting the scope of the present application.
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Example 1
As shown in fig. 1, the present embodiment has a lead-in section 1 and a lead-out section 4. The leading-in section 1 is used as an entrance end of the buried pipeline and is connected with the wiring pipe of the previous section. The leading-out section 4 is used as an outlet end of the buried pipeline and is connected with a rear junction tube. In the present embodiment, a trapezoidal connecting portion 2 is provided between the connecting portion 2 and the leading-in section 1 and the leading-out section 4. The connection 2 has three openings in common, and in addition to the lead-in section 1 and the lead-out section 4, as shown in the figure, a branch section 3 is connected, which branch section 3 serves as a protective tube for the branch line. Because the connecting part 2 is trapezoidal, the branch section 3 and the lead-out section 4 can be arranged in parallel, so that the connecting part is suitable for the wiring condition that the trend of a branch line is approximately the same as that of the lead-out section 4.
Example 2
As shown in fig. 2, the present embodiment has a lead-in section 1 and a lead-out section 4. The leading-in section 1 is used as an entrance end of the buried pipeline and is connected with the wiring pipe of the previous section. The leading-out section 4 is used as an outlet end of the buried pipeline and is connected with a rear junction tube. In the present embodiment, a triangular connection part 2 is arranged between the connection part 2 and the leading-in section 1 and the leading-out section 4. The connection 2 has three openings in common, and in addition to the lead-in section 1 and the lead-out section 4, as shown in the figure, a branch section 3 is connected, which branch section 3 serves as a protective tube for the branch line. Because the connecting part 2 is triangular, the branch section 3, the leading-out section 4 and the leading-in section 1 can be arranged at different angles, so that the wiring device is suitable for wiring conditions with different inlet ends, outlet ends and branch lines.
Example 3
As shown in fig. 3, the present embodiment has a lead-in section 1 and a lead-out section 4. The leading-in section 1 is used as an entrance end of the buried pipeline and is connected with the wiring pipe of the previous section. The leading-out section 4 is used as an outlet end of the buried pipeline and is connected with a rear junction tube. In the present embodiment, a wedge-shaped connecting portion 2 is disposed between the leading-in section 1 and the leading-out section 4, and the connecting portion 2 is communicated with the leading-out section 4. The wedge-shaped connecting part 2 has only two openings, since the lead-in section 1 and the lead-out section 4 form a straight pipe, into which the wedge-shaped connecting part 2 is inserted and to which the branch section 3 as a protective pipe for the branch line is connected. The underground branch wiring pipe of the buried wire in the shape is suitable for the condition that wiring with an angle greatly different from the trend is arranged on a straight line advancing route.
By combining this embodiment and embodiments 1 and 2, the basic part of the apparatus of the present invention includes a leading-in section 1 and a leading-out section 4, and is mainly characterized in that: the novel guide rail structure is characterized by further comprising a connecting part 2 and branch sections 3, wherein the connecting part 2 is communicated between the leading-in section 1 and the leading-out section 4, the branch sections 3 are communicated with the connecting part 2, and the number of the branch sections 3 is at least one.
The device can make the wire connecting pipes made of different materials into three-branch, four-branch, five-branch and other different types and different specifications, and can be selected and used according to the actual situation on site, and can carry out crimping and insulation recovery as the linear wire connecting pipes. Therefore, the technical problems of underground multi-branch wiring and insulation effective treatment of the buried line are solved, the construction progress can be greatly improved, the cost and the power consumption are effectively reduced, and the damage of electric facilities is reduced. In addition, the device also has the advantages of convenient and quick connection, good insulation treatment effect, no occupation of farmland, no influence on the mechanized operation of the farmland, effective reduction of the external force damage of power equipment, and reduction of the rush repair strength of the equipment.
Example 4
As shown in fig. 4 to 7, the present embodiment adds a sealer 5 to embodiment 3. Specifically, the method comprises the following steps: the branch section 3 has an outlet terminal 6, and the outlet terminal 6 refers to an outlet of the cable from the junction box, i.e. an outlet of other equipment such as a junction box. The sealer 5 is arranged on the branch section 3 close to the wire outlet end so as to isolate the outside from the inner space of the wiring pipe and prevent outside rainwater, animals, sundries or pollutants from entering the pipe, thus preventing rats and ants from entering the pipe by mistake and eating nests and gnawing cables or preventing corrosive from entering the pipeline and corroding the cables, which is particularly important for buried pipelines in construction operation in farmland fields, and the sealer 5 is arranged, so that the sealer 5 is significant.
As for the specific structure of the closure 5 of the present embodiment, refer to fig. 5 to 7, which mainly include a closure body 7, where the closure body 7 is cylindrical, an external thread 10 is provided on the cylindrical surface of the closure body 7, and a nut 11 is connected to the external thread 10; the cylindrical surface of the sealer main body 7 is further provided with a main sliding groove 15, the main sliding groove 15 is intersected with the inner cavity of the branch section 3, a main sliding block 12 is connected inside the main sliding groove 15 in a sliding mode, the outer side face of the main sliding block 12 is a wedge face 13, and the inner side face of the main sliding block 12 is fixedly connected with an elastic sealing block 18.
The sealer 5 arranged in this way can extrude the wedge surface 13 of the main sliding block 12 through the nut 11 by rotating the nut 11, so that the main sliding block 12 slides inwards along the main sliding groove 15, the sealing block 18 connected to the inner side surface of the main sliding block 12 is pushed, the main sliding groove 15 and the intersection of the inner cavity of the branch section 3 are sealed by the sealing block 18, and finally the inner space of the junction box is sealed. This device is owing to used the screw thread to push against mutually supporting with the scarf, therefore apply little strength in nut 11 department and just can form huge extrusion force in sealing block 18 department to with elastic sealing block 18 extrusion deformation in order to seal up the space in place, guaranteed sealed effect.
As shown in fig. 5 to 7, the present invention may further include a protrusion 19 disposed at a small end of the wedge surface of the main slider 12, a sliding pin 20 disposed at a side surface of the protrusion 19, an upper chute 8 disposed on the closure body 7 and engaged with the sliding pin 20, wherein the upper chute 8 is oriented in the same direction as the moving direction of the main slider 12.
The device of the invention thus arranged solves the problem of the unsmooth movement of the main slide 12 when the nut 11 is pressing the wedge surface 13. As shown in fig. 5, when the small end (i.e., the upper end in the drawing) of the wedge surface of the main slider 12 does not enter the closure body 7, only a small part of the mating surface 14 contacts the main chute 15, especially the top of the main slider 12, so that the top of the main slider 12 is disadvantageously supported after the nut 11 presses the wedge surface 13, and even if the main slider 12 does not topple, the contact stress on the top of the main slider 12 is too large, the equipment is damaged, and the movement is stumbled. The sliding pin 20 shown in the figure is arranged at the top of the main sliding block 12 (namely, the small end of the wedge surface), so that the problem that the top end of the main sliding block 12 has an overlarge tilting tendency can be prevented, the smoothness of the movement of the main sliding block 12 is improved, and the reliability of the equipment action is ensured.
As shown in fig. 5 to 7, the present invention can further provide that the width of the protrusion 19 is not greater than 2/3 of the width of the main slider 12.
The device of the invention arranged in this way is more compact and reasonable in structure. Because the top end of the main sliding block 12 is in contact with the closure body 7 in a superposition manner as little as possible in order to increase the stroke, and the sliding pin 20 needs to have enough volume (namely, enough strength is required) to interact with the upper chute 8, the contradiction is most prominent particularly when the main sliding block 12 is wide and the diameter of the outer circle of the closure body 7 is small, and the bump 19 is smaller than 2/3 of the width of the sliding block 12, so that the bump 19 has enough volume to arrange the sliding pin 20, and the structural layout of the device is compact and reasonable.
As shown in fig. 5 to 7, in the present invention, a central line of the bottom width of the main sliding groove 15 intersects with a width midpoint of a cross section of an inner cavity of the branch section 3 (i.e. corresponding to a center of the cross section of the branch section 3 in this embodiment), the width of the main sliding groove 15 is not less than 1.1 times of the width of the cross section of the inner cavity of the branch section 3 (i.e. corresponding to an inner diameter of the branch section 3 in this embodiment), and the sealing block 18 has the same width as the main sliding groove 15.
The sealing tightness of the device is better, because the sealing block 18 has elasticity, if the sealing block 18 is obstructed by the cable in the middle of the tube, the parts on the two sides of the sealing block 18 are close to the middle after being extruded, if no margin exists, the inner cavity of the branch section 3 can not be sealed, and the sealing tightness can be met after the sealing block is set to be 1.1 times.
As shown in fig. 5 to 7, the number of the main sliding grooves 15 may be more than two, the number of the main sliding blocks 12 corresponds to the number of the main sliding grooves 15, and the moving direction of each main sliding block 12 is perpendicular to the axis of the cylindrical surface of the closure body 7.
By the arrangement, the device can perform plugging in multiple directions, so that the plugging effect is better.
As shown in fig. 5, the present invention may further provide that the sealing block 18 has more than two sealing teeth 9, the sealing teeth 9 are arranged at intervals along the axial direction of the cylindrical surface of the sealer main body 7, two adjacent sealing teeth 9 arranged at intervals form a sealing groove 17, two groups of sealing teeth 9 belonging to any two sealing blocks 18 form a staggered arrangement with each other, and the staggered arrangement means that the sealing teeth 9 and the sealing grooves 17 are crossed to form a complementary after plugging movement.
With this arrangement, the sealing effect of the device according to the invention is further enhanced, since the sealing teeth 9 mutually form a labyrinth seal.
As shown in fig. 5, the present invention can further comprise: the dog 9 has a convex circular arc shape a16 in the radial direction of the cylindrical surface of the obturator body 7 (i.e. corresponding to the view from fig. 5).
With the arrangement, the device of the invention is more reliable in operation, because the sealing teeth 9 in different groups can possibly be mutually pinned during crossing, thereby blocking the movement of the sealing teeth 9, and after the arc-shaped configuration is arranged, the sealing teeth 9 can generate self-guiding function, thereby preventing the interference blocking phenomenon between the sealing teeth 9.
As shown in fig. 6, the present invention can further comprise: the tooth 9 has a circular arc B21 in the axial direction of the cylindrical surface of the closure body 7 (i.e. corresponding to the view from fig. 6), the diameter of the circular arc B21 being equal to or greater than the width of the cross section of the lumen of the branch section 3.
By the arrangement, the sealing teeth 9 of the device can form a locking effect, so that a cable in the center of the wire connecting pipe can be locked in a surrounding manner from two sides, the cable can be positioned and conveniently mounted subsequently, the sealing effect is better, and the problem that the two sides of the elastic sealing block are folded towards the center after the middle part of the elastic sealing block is compressed is solved.
It is again emphasized that the embodiments described herein are merely examples of implementations, rather than examples of implementations, and that the specific embodiments described herein are merely illustrative of the invention and do not limit the scope of the invention as defined by the claims. Any changes obvious to those skilled in the art from the embodiments of the present invention, which are made under the design idea of the present invention, are within the protection scope of the present invention.
Claims (5)
1. The utility model provides a buried line underground branch patch panel, includes induction section (1) and extraction section (4), its characterized in that: the device is characterized by further comprising a connecting part (2) and branch sections (3), wherein the connecting part (2) is arranged between the leading-in section (1) and the leading-out section (4) and is used for communicating the leading-in section (1) with the leading-out section (4), the branch sections (3) are communicated with the connecting part (2), and the number of the branch sections (3) is at least one;
the branch section (3) is provided with a wire outlet end (6), and a sealer (5) is arranged on the branch section (3);
the sealer (5) comprises a sealer main body (7), the sealer main body (7) is cylindrical, an external thread (10) is arranged on the cylindrical surface of the sealer main body (7), and a nut (11) is connected to the external thread (10); a main sliding groove (15) is further formed in the cylindrical surface of the sealer main body (7), the main sliding groove (15) is intersected with the inner cavity of the branch section (3), a main sliding block (12) is connected inside the main sliding groove (15) in a sliding mode, the outer side face of the main sliding block (12) is a wedge face (13), and an elastic sealing block (18) is fixedly connected to the inner side face of the main sliding block (12);
the central line of the bottom surface width of the main sliding chute (15) is intersected with the width midpoint of the inner cavity section of the branch section (3), the width of the main sliding chute (15) is not less than 1.1 times of the width of the inner cavity section of the branch section (3), and the sealing block (18) and the main sliding chute (15) are equal in width;
the number of the main sliding grooves (15) is more than two, the number of the main sliding blocks (12) corresponds to that of the main sliding grooves (15) one by one, and the moving direction of each main sliding block (12) is perpendicular to the axis of the cylindrical surface of the sealer main body (7);
the sealing block (18) is provided with more than two sealing teeth (9), the sealing teeth (9) are arranged at intervals along the axial direction of the cylindrical surface of the sealer main body (7), and two groups of sealing teeth (9) belonging to any two sealing blocks (18) are arranged in a staggered mode.
2. The underground branch patch tube of claim 1, wherein: the small end of the wedge surface of the main sliding block (12) is provided with a convex block (19), the side surface of the convex block (19) is provided with a sliding pin (20), the sealer main body (7) is provided with an upper sliding groove (8) matched with the sliding pin (20), and the direction of the upper sliding groove (8) is the same as the moving direction of the main sliding block (12).
3. The underground branch patch tube of claim 2, wherein: the width of the projection (19) is not more than 2/3 of the width of the main slider (12).
4. The underground branch patch tube of claim 1, wherein: the seal teeth (9) are in a convex arc shape A (16) in the radial line direction of the cylindrical surface of the sealer main body (7).
5. The underground branch patch tube of claim 4, wherein: the seal tooth (9) is in a circular arc shape B (21) in the axial direction of the cylindrical surface of the sealer main body (7), and the diameter of the circular arc shape B (21) is larger than or equal to the width of the section of the inner cavity of the branch section (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010359384.1A CN111541204B (en) | 2020-04-29 | 2020-04-29 | Underground branch wiring pipe of buried line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010359384.1A CN111541204B (en) | 2020-04-29 | 2020-04-29 | Underground branch wiring pipe of buried line |
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| CN111541204A CN111541204A (en) | 2020-08-14 |
| CN111541204B true CN111541204B (en) | 2021-05-28 |
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| CN202010359384.1A Active CN111541204B (en) | 2020-04-29 | 2020-04-29 | Underground branch wiring pipe of buried line |
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