CN212899295U - Improved distribution box - Google Patents

Improved distribution box Download PDF

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Publication number
CN212899295U
CN212899295U CN202020528753.0U CN202020528753U CN212899295U CN 212899295 U CN212899295 U CN 212899295U CN 202020528753 U CN202020528753 U CN 202020528753U CN 212899295 U CN212899295 U CN 212899295U
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CN
China
Prior art keywords
connecting hole
screw
hole
panel
base
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Active
Application number
CN202020528753.0U
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Chinese (zh)
Inventor
卢建全
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Kedidu Intelligent Electric Technology Co ltd
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Guangdong Kedidu Intelligent Electric Technology Co ltd
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Publication of CN212899295U publication Critical patent/CN212899295U/en
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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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
    • F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
    • F16B35/041—Specially-shaped shafts
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B33/00—Features common to bolt and nut
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B33/00—Features common to bolt and nut
    • F16B33/02—Shape of thread; Special thread-forms
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
    • F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
    • F16B35/06—Specially-shaped heads
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00—Locking of screws, bolts or nuts
    • F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
    • F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26—Casings; Parts thereof or accessories therefor
    • H02B1/46—Boxes; Parts thereof or accessories therefor
    • H02B1/48—Mounting of devices therein

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Connection Of Plates (AREA)
  • Distribution Board (AREA)

Abstract

The utility model relates to an improve block terminal. It includes the base, panel and plastics screw, be equipped with the connecting hole on the base, the inside wall of connecting hole is equipped with the internal thread, the plastics screw is including the screw rod and the nut that are connected, be equipped with the external screw thread on the lateral wall of screw rod, the screw rod passes connect the through-hole by the panel in to the base, and with connecting hole threaded connection, the nut compresses tightly the panel on the base, the screw rod includes changeover portion and screw thread section, changeover portion connect screw thread section and nut, the utility model discloses a length of injecing the screw thread section sets for the scope that the screw rod twisted the degree of depth in advance to ensure that the plastics screw is twisted after target in place, just can not continue the precession again, finally make the plastics screw can not press the. Therefore, after the plastic screws are installed on the connecting through holes by installation workers, the plastic screws can be screwed up only by screwing for a plurality of circles, and the plastic screws are screwed smoothly, easily and labor-saving by the installation workers.

Description

Improved distribution box
Technical Field
The utility model relates to a technical field of block terminal, in particular to improve block terminal.
Background
The block terminal includes base and panel before, and the panel passes through the five metals screw fixation on the opening of base, corresponds five metals screw setting connection hole post on the plastic base, is equipped with the connecting hole on the connection hole post, but not the screw, and the through-hole on the panel is passed to the five metals screw to twist the connecting hole on the second connection hole post. The existing improved distribution box has the following defects: the hardware screw and the connecting hole are not limited, and the diameter of the connecting hole in the connecting hole column is generally smaller than that of the hardware screw, so that the hardware screw can be screwed into the connecting hole continuously, an installer does not know when to stop screwing the screw, the situation that the panel is pressed down due to excessive screwing of the screw and the situation that the connecting hole column is broken or screwed and burst easily and cannot be used are easy to occur. (II) because the connecting hole of connecting hole post is not the screw, when the five metals screw was twisted, the resistance was very big, consequently, the installer need take very big strength and spend longer time, could tighten the five metals screw, very inconvenient, laborsaving. And (III) because the hardware screws are adopted for screwing, the stress of the panel is large, the panel is easy to slide, and the edge of the panel is easy to stagger with the edge of the base and is not aligned. (IV) additionally, there is a need for further improvements in the construction of existing improved electrical distribution boxes.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a fixed firm, the easy, convenient improvement block terminal of plastics screw dismouting of panel.
The purpose of the utility model is realized like this:
an improved distribution box comprises a base, a panel and a plastic screw, wherein the panel is covered on an opening of the base, a connecting hole is arranged on the base, an inner thread is arranged on the inner side wall of the connecting hole, a connecting through hole is arranged at the position of the panel corresponding to the connecting hole, the plastic screw comprises a screw rod and a nut which are connected, an outer thread is arranged on the outer side wall of the screw rod, the diameter of the screw rod is smaller than that of the nut, the screw rod penetrates through the connecting through hole from the panel to the base and is in threaded connection with the connecting hole, the nut tightly presses the panel on the base, the screw rod comprises a transition section and a thread section, the transition section is connected with the thread section and the nut, the outer thread is arranged on the outer side wall of the thread section, the screw rod of the utility model only has an outer thread section, the length of the, the plastic screw can be screwed up only by screwing a few circles, the plastic screw can be screwed smoothly, and the plastic screw is easy, convenient, easy and labor-saving to operate by workers. The utility model discloses a length of injecing the screw thread section comes preset screw rod to twist the scope of the degree of depth to ensure that the plastics screw is twisted after targetting in place, just can not continue to screw in again, finally make the plastics screw can not press the rotten panel and damage the connecting hole post, improved the life of block terminal.
The utility model can be further improved as follows.
The pitch of the end of the external thread is narrowed gradually, so that when the plastic screw is screwed up in the early stage, the plastic screw can be screwed up easily and easily, the later friction force is gradually increased, and the external thread cannot be screwed up continuously. In addition, the lateral wall of changeover portion does not have the external screw thread, the changeover portion not with female connection, consequently the utility model discloses a frictional force when plastics screw is screwed up can greatly reduced.
The internal thread of the connecting hole is a single-circle internal thread, so that the friction force between the plastic screw and the internal thread of the connecting hole is small, and the plastic screw is easy and convenient to screw.
The panel is provided with a first connecting hole column, the connecting through holes are formed in the first connecting hole column, the base is provided with a second connecting hole column, and the connecting holes are formed in the second connecting hole column.
The utility model discloses a positioning panel, including base, connecting hole post, locating through-hole, the bottom of first connecting hole post, the lateral wall annular space of first connecting hole post is equipped with polylith location cardboard, the lower extreme of location cardboard extends to the below of connect the through-hole, the top of second connecting hole post is supported and is leaned on the bottom of first connecting hole post, the top of second connecting hole post is located between the polylith location cardboard to realize the positioning panel, relative movement can not take place between base and the panel, guarantee first connecting hole post and second connecting hole post and aim at, make things convenient for follow-up workman to twist the operation of plastics screw, also make the edge of base and panel connection department align simultaneously, do not.
The lower extreme inboard of location cardboard is equipped with guide inclined plane and perpendicular, the perpendicular is located the bottom on guide inclined plane, the perpendicular is connected with connect the bottom of hole is perpendicular, the lateral wall of second connect the hole post supports and leans on the perpendicular, and the top of guide inclined plane guide second connect the hole post supports and leans on connect the hole's bottom, ensures that connect the hole and the connect the hole alignment, makes things convenient for follow-up workman to twist the operation of plastics screw.
The nut is located the connecting through hole, be equipped with the pressurized bulge loop along its circumference on the inside wall of connecting through hole, the nut supports and leans on the pressurized bulge loop, the diameter of screw < the internal diameter of pressurized bulge loop < the diameter of nut. Therefore, the plastic screw of the utility model is integrally hidden in the connecting through hole, thereby making the utility model discloses an appearance is neat and beautiful. The utility model discloses a screw rod of plastics screw and the connecting hole threaded connection of base, and the nut of plastics screw compresses tightly base and panel together through the pressurized bulge loop.
Be equipped with the anticreep arch on the lateral wall of changeover portion, the protruding circle of pressurized corresponds the anticreep arch and is equipped with the breach of stepping down. Therefore, the anti-drop bulge can pass through the abdicating notch, and the diameter of the screw is less than the inner diameter of the pressed convex ring and less than the diameter of the anti-drop bulge. When the installer unscrews the plastic screw, the plastic screw cannot fall out due to the fact that the anti-falling protrusion is abutted against the inner side of the pressed convex ring. Consequently the utility model discloses a protruding circle of pressurized and anticreep are protruding for in the plastics screw is fixed in the connection through-hole in advance, can not drop out.
Location cardboard and first connecting hole post integrated into one piece, consequently the utility model discloses low in production cost.
The end face of the nut is provided with a cross-shaped or straight screwing groove, so that an installer can conveniently screw the screw.
The utility model has the advantages as follows:
(A)The utility model discloses a screw rod only the screw thread section has the external screw thread, and the degree of depth that the screw rod was twisted is injectd to the length of screw thread section, consequently the installer only need twist several rings after the plastics screw is gone into to connect the via hole facial make-up, just can tighten the plastics screw, and the plastics screw is twisted and is moved smoothly, workman easy operation, convenience, light, laborsaving. The utility model discloses a length of injecing the screw thread section comes preset screw rod to twist the scope of the degree of depth to ensure that the plastics screw is twisted after targetting in place, just can not continue to screw in again, finally make the plastics screw can not press the rotten panel and damage the connecting hole post, improved the life of block terminal.
(two) additionally, the utility model discloses a panel passes through location cardboard location second connecting hole post to realize the location panel, can not take place relative movement between base and the panel, guarantee first connecting hole post and second connecting hole post and aim at, make things convenient for follow-up workman to twist the operation of plastics screw, also make the edge of base and panel department of plugging into align simultaneously, do not stagger.
Drawings
Fig. 1 is the structural schematic diagram of the improved distribution box of the present invention.
Fig. 2 is a schematic structural view of the present invention without the switch panel cover.
Figure 3 is a top view of the improved power distribution box of the present invention.
Fig. 4 is a cross-sectional view at a-a in fig. 3.
Fig. 5 is the utility model discloses improve the decomposition structure schematic diagram of block terminal.
Fig. 6 is a schematic structural diagram of the panel of the present invention.
Fig. 7 is a schematic structural view of the plastic screw of the present invention.
Fig. 8 is an enlarged view at a in fig. 4.
Fig. 9 is an enlarged view at B in fig. 6.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
In one embodiment, as shown in fig. 1 to 9, an improved distribution box comprises a base 1, a panel 2, a plastic screw 3 and a switch panel cover 4, the panel 2 is covered on the opening of the base 1, the panel 2 is provided with an installation clearance opening 24, the switch panel cover 4 is rotationally arranged on the panel 2, and is covered with a position-giving opening 24, a connecting hole 12 is arranged on the base 1, an inner side wall of the connecting hole 12 is provided with an inner thread 13, the panel 2 is provided with a connecting through hole 21 corresponding to the connecting hole 12, the plastic screw 3 comprises a screw rod 32 and a nut 31 which are connected, the outer side wall of the screw rod 32 is provided with external threads, the diameter of the screw rod is smaller than that of the screw cap, the screw rod 32 penetrates through the connecting through hole 21 from the panel 2 to the base 1, and is in threaded connection with the connecting hole 12, and the nut 31 presses the panel 2 on the base 1.
As a more specific technical solution of the present invention.
Be equipped with first connecting hole post 20 on the panel 2, on first connecting hole post 20 was located to connecting hole 21, be equipped with second connecting hole post 11 on the base 1, connecting hole 12 is located on second connecting hole post 11.
The outer side wall ring interval of first connecting hole post 20 is equipped with polylith location cardboard 25, the lower extreme of location cardboard 25 extends to the below of connect the through hole 21, the top of second connecting hole post 11 is supported and is leaned on the bottom of first connecting hole post 20, the top of second connecting hole post 11 is located between polylith location cardboard 25 to realize the location panel, relative movement can not take place between base and the panel, guarantee first connecting hole post and second connecting hole post and aim at, make things convenient for follow-up workman to twist the operation of plastics screw, also make the edge of base and the panel department of connection align simultaneously, do not stagger.
The inner side of the lower end of the positioning clamping plate 25 is provided with a guide inclined surface 26 and a vertical surface 27, the vertical surface 27 is located at the bottom of the guide inclined surface 26, the vertical surface 27 is vertically connected with the bottom end of the connecting through hole 21, the side wall of the second connecting hole column 11 abuts against the vertical surface 27, the guide inclined surface 26 guides the top end of the second connecting hole column 11 to abut against the bottom end of the connecting through hole 21, the connecting through hole 21 is aligned with the connecting hole 12, and subsequent operation of screwing the plastic screw 3 by a worker is facilitated.
The diameter of screw rod 32 < the internal diameter of pressurized protruding circle < the diameter of nut 31, nut 31 is located connect the via hole 21, be equipped with pressurized protruding circle 22 along its circumference on connect the via hole 21's the inside wall, nut 31 supports and leans on pressurized protruding circle 22, consequently the utility model discloses a plastic screw 3 wholly hides in connect the via hole 21, thereby makes the utility model discloses an outward appearance is neat, pleasing to the eye. The utility model discloses a screw rod 32 of plastic screw 3 and the connecting hole 12 threaded connection of base 1, and the nut 31 of plastic screw 3 compresses tightly base 1 and panel 2 together through pressurized bulge loop 22.
Be equipped with the anticreep arch 35 on the lateral wall of changeover portion, the protruding circle 22 that receives corresponds anticreep arch 35 and is equipped with and lets a breach 23. Therefore, the retaining projection 35 can pass through the relief notch 23, and the diameter of the screw 32 < the inner diameter of the pressure receiving collar 22 < the diameter of the retaining projection 35. When the installer unscrews the plastic screw 3, the plastic screw 3 does not fall out because the escape prevention protrusion 35 abuts against the inside of the pressed convex ring 22. Consequently the utility model discloses a receive protruding circle 22 of pressure and anticreep arch 35 for in plastics screw 3 is fixed in connecting hole 21 in advance, can not drop out.
Location cardboard 25 and first connecting hole post 20 integrated into one piece, consequently the utility model discloses low in production cost.
The end face of the nut 31 is provided with a cross-shaped or straight screwing groove, so that the screw can be screwed by an installer conveniently.
The screw rod 32 includes changeover portion 34 and screw thread section 33, changeover portion 34 connects screw thread section 33 and nut 31, the external screw thread is located on the lateral wall of screw thread section 33, the pitch of the end section of external screw thread narrows gradually, consequently, when plastic screw 3 was screwed up earlier, can be lighter, light, and later stage friction force gradually increases, and the external screw thread can't continue to screw in and screw up.
The internal thread 13 of the connecting hole 12 is a single-circle internal thread 13, so that the friction force between the plastic screw and the internal thread of the connecting hole is small, and the plastic screw is easy and convenient to screw.

Claims (10)

1. The utility model provides an improve block terminal, includes base and panel, the panel lid is located on the opening of base, be equipped with the connecting hole on the base, the inside wall of connecting hole is equipped with the internal thread, the position that the panel corresponds the connecting hole is equipped with connect the through hole, characterized by still includes the plastics screw, the plastics screw is including the screw rod and the nut that are connected, be equipped with the external screw thread on the lateral wall of screw rod, the diameter of screw rod is less than the diameter of nut, the screw rod is by the panel to passing connect the through hole in the base to with connecting hole threaded connection, the nut compresses tightly the panel on the base, the screw rod includes changeover portion and screw thread section, changeover portion connect screw thread section and nut, the external screw thread is located on.
2. The improved electrical box of claim 1, wherein the pitch of the end section of said external threads is tapered.
3. The improved electrical box of claim 1 or 2, wherein the internal threads of said attachment aperture are a single turn of internal threads.
4. The improved distribution box according to claim 3, wherein the panel is provided with a first connecting hole column, the connecting through hole is formed in the first connecting hole column, the base is provided with a second connecting hole column, and the connecting hole is formed in the second connecting hole column.
5. The improved distribution box according to claim 4, wherein the outer side wall of the first connecting hole column is provided with a plurality of positioning clamping plates at intervals, the lower ends of the positioning clamping plates extend to the lower side of the connecting through hole, the top end of the second connecting hole column abuts against the bottom end of the first connecting hole column, and the top end of the second connecting hole column is located among the plurality of positioning clamping plates.
6. The improved distribution box of claim 5, wherein the positioning clamping plate has a guiding inclined plane and a vertical plane at the bottom of the guiding inclined plane, the vertical plane is vertically connected to the bottom end of the connecting through hole, the side wall of the second connecting hole pillar abuts against the vertical plane, and the top end of the second connecting hole pillar abuts against the bottom end of the connecting through hole.
7. The improved power distribution box of claim 1, wherein the nut is located in the connection through hole, a compression convex ring is arranged on the inner side wall of the connection through hole along the circumferential direction of the connection through hole, and the nut abuts against the compression convex ring.
8. The improved distribution box according to claim 7, wherein an anti-falling protrusion is arranged on the outer side wall of the transition section, and the pressed convex ring is provided with a yielding notch corresponding to the anti-falling protrusion.
9. The improved electrical box of claim 5, wherein said positioning strap is integrally formed with said first connection hole post.
10. The improved electrical distribution box of claim 1, wherein said nut has a cross or in-line shaped driving slot on an end surface thereof.
CN202020528753.0U 2020-03-24 2020-04-10 Improved distribution box Active CN212899295U (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2020203904329 2020-03-24
CN202020390432 2020-03-24

Publications (1)

Publication Number Publication Date
CN212899295U true CN212899295U (en) 2021-04-06

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CN202010281262.5A Pending CN111425505A (en) 2020-03-24 2020-04-10 Improved distribution box

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Application Number Title Priority Date Filing Date
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111425505A (en) * 2020-03-24 2020-07-17 广东科迪多智能电气科技有限公司 Improved distribution box

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Publication number Priority date Publication date Assignee Title
CN201719075U (en) * 2010-06-25 2011-01-26 松下家电研究开发（杭州）有限公司 Heat releasing plate bracket and rice cooker adopting same
EP2764964B1 (en) * 2013-02-06 2020-01-01 Cito-System GmbH Breakaway tool for breaking out stamping by-products in the production of blanks from a sheet and having a securing element
CN204786653U (en) * 2015-05-18 2015-11-18 九阳股份有限公司 Electromagnetic heater
CN204985263U (en) * 2015-09-24 2016-01-20 东风伟世通（十堰）汽车饰件系统有限公司 Screw post location structure
CN205372660U (en) * 2015-12-16 2016-07-06 九阳股份有限公司 Simple to operate's electromagnetism stove
DE102017125722A1 (en) * 2017-11-03 2019-05-09 Illinois Tool Works Inc. Connector with improved assembly process
CN212899295U (en) * 2020-03-24 2021-04-06 广东科迪多智能电气科技有限公司 Improved distribution box

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111425505A (en) * 2020-03-24 2020-07-17 广东科迪多智能电气科技有限公司 Improved distribution box

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