CN205265002U - Safe screw socket - Google Patents

Abstract

The utility model provides a long service life's safe screw socket. The utility model discloses a safe screw socket includes insulating casing, be equipped with in the insulating casing screw socket lamp ring, a binding post, the 2nd binding post and the end shell fragment of being connected with binding post electricity, with the electric side shell fragment of being connected of the 2nd binding post, the screw socket lamp ring comprises the bottom plate of metal material, annular internal thread circle an organic whole, the middle part of bottom plate is equipped with logical groove, the one end of leading to the groove upwards extends to the middle part of internal thread circle, and the side that the bottom plate is leading to the groove is equipped with fixing hole, end shell fragment exposes in the logical groove at bottom plate middle part, and the side shell fragment exposes in the logical groove of internal thread circle lateral part, and end shell fragment, the shell fragment that inclines are all kept apart with the screw socket lamp ring. The utility model discloses a setting up the unique screw socket lamp ring of structure, end shell fragment and side shell fragment, under the prerequisite of guaranteeing electrical safety, having lengthened life, overall structure is simple, simple to operate, fixed reliable, has fine practicality.

Description

A kind of safe lampholder

Technical field

The utility model belongs to technical field of electricity, is specifically related to screw lamp holder.

Background technology

Tradition screw lamp holder is all to adopt metal screw socket lamp ring processed, in fixing bulb, can also use as an electrode. The shortcoming of this kind of screw lamp holder is easily in the process that is installed on bulb dismounting, to get an electric shock.

The patent No. is that 200820176713.3 utility model discloses a kind of screw lamp holder, comprise insulation crust, be arranged on the positive and negative electrode in described insulation crust, positive and negative binding post with described positive and negative electrode electric connection, be located at the internal thread on described insulation crust inwall, described internal thread is insulation screw thread, the contact of described negative electrode, near the madial wall of described insulation crust, is provided with at least one and runs through described internal thread and allow the flexible groove of described negative electrode contact on described insulation crust madial wall. Compared with prior art, above-mentioned utility model has adopted insulation internal thread to carry out alternative metals screw socket lamp ring, thereby has overcome the safety defect of the central metal threaded easy generation electric shock accidents of prior art. But the most frequently used insulating materials is exactly plastics at present, and in the use procedure of bulb, temperature is higher, and the screw socket lamp ring of plastic material is easy to aging and becomes fragile, and then breaks in the process of dismounting or bulb mounting, and service life is shorter.

Summary of the invention

The purpose of this utility model is the safe lampholder that proposes a kind of long service life.

Safe lampholder of the present utility model comprises insulation crust, the side shell fragment that be provided with screw socket lamp ring, the first binding post, the second binding post and the end shell fragment being electrically connected with the first binding post in insulation crust, is electrically connected with the second binding post; Described screw socket lamp ring is made up of the base plate of metal material, annular internal thread circle one, and the middle part of described base plate is provided with groove, and one end of described groove extends upwardly to the middle part of internal thread circle, and base plate is provided with fixed via at the side of groove; Shell fragment of the described end is exposed to the groove at base plate middle part, and side shell fragment is exposed to the groove of internal thread circle sidepiece, and end shell fragment, side shell fragment are all isolated with screw socket lamp ring.

Specifically, described insulation crust is fastened and is formed by face frame, base, is provided with successively back seat and pressing plate in insulation crust from top to bottom; Described back seat comprises back seat plate, and top, described back seat plate middle part is provided with the cylinder of upper opening, and the both sides of back seat plate are provided with cavity, the bottom opening of described cavity, and the top of cavity is provided with through hole; The bottom of described cavity is provided with screw; Described screw socket lamp ring is positioned at the cylinder of base, the base plate of screw socket lamp ring is screwed on back seat plate, described the first binding post, the second binding post are the closed-in construction that top is provided with screwed hole, the first binding post, the second binding post lay respectively in the cavity of back seat both sides, the stiff end of end shell fragment stretches in the first binding post, and utilizes the screw of the screwed hole of the through hole through cavity top, the first binding post to be successively connected with the first binding post; The stiff end of side shell fragment stretches in the second binding post, and utilizes the screw of the screwed hole of the through hole through cavity top, the second binding post to be successively connected with the second binding post; Described frame and base fasten, thereby back seat, pressing plate are fixed in insulation crust.

Above-mentioned screw socket lamp ring is screwed on back seat plate, and the first binding post, the second binding post, end shell fragment, side shell fragment also adopt the mode of screw to be fixed, and have improved reliability, and easy for installation.

Further, the middle part of described back seat plate and the sidepiece of cylinder are equipped with through hole; The middle part of shell fragment of the described end is positioned at the below of back seat plate, and the stiff end of end shell fragment is upward through back seat plate and stretches in the first binding post, and free end is upward through after the through hole at back seat plate middle part, is exposed to the groove at the base plate middle part of screw socket lamp ring; The middle part of described side shell fragment is positioned at the below of back seat plate, and the stiff end of side shell fragment is upward through back seat plate and stretches in the second binding post, and free end is upward through after the through hole of cylinder sidepiece, is exposed to the groove of the internal thread circle sidepiece of screw socket lamp ring. The middle part of shell fragment of the above-mentioned end and side shell fragment all utilizes back seat plate and the isolation of screw socket lamp ring, and the free end of end shell fragment and side shell fragment is all positioned at groove position, the possibility of so just thoroughly having avoided end shell fragment, side shell fragment to contact with screw socket lamp ring. And, the middle part of end shell fragment and side shell fragment all utilizes back seat plate, pressing plate to be fixed, can prevent that end shell fragment and side shell fragment from arbitrarily moving, and fully ensure the free-ended elasticity of end shell fragment and side shell fragment, and then improve end shell fragment and the free end of side shell fragment and the reliability of bulb electrode contact.

Further, stiff end and the free end of shell fragment of the described end are orthogonal, and stiff end and the free end of described side shell fragment are orthogonal. At the bottom of bulb electrode pair, the pressure of shell fragment, side shell fragment is vertical with the stiff end of end shell fragment, side shell fragment respectively like this, and under the supporting role of back seat cavity wall, above-mentioned pressure can not promote end shell fragment, side shell fragment moves, thereby has ensured the reliability of end shell fragment, side shell fragment and bulb electrode contact.

Further, described bedplate is provided with the breach joining with cylinder side through-hole, the free end of described side shell fragment is arc-like sheet, described arc-like sheet extends on the top to cylinder side through-hole from described indentation, there, the top of arc-like sheet is positioned at cylinder outside, described arc-like sheet is from top to bottom gradually by the middle part direction bending of cylinder lateral internal thread circle, screw in the process of screw lamp holder at bulb like this, side shell fragment can compress the electrode of bulb below sidepiece gradually, ensures the reliability of side shell fragment and bulb electrode contact; And side shell fragment can be spacing by the breach of cylinder side through-hole and bedplate institute, can arbitrarily not rock.

Further, the protuberance that the middle part direction of the oriented screw socket lamp ring of free end punching press of described side shell fragment is protruded, the free end punching press of shell fragment of the described end has protuberance protruding upward. Raised part has increased the free-ended elasticity of shell fragment, can ensure mutually to compress between bulb electrode and shell fragment.

When bulb screws in after screw socket lamp ring, the electrode of light bulb base can contact with end shell fragment, and the electrode of bulb bottom can contact with side shell fragment, thereby realizes energising; Above-mentioned screw socket lamp ring is that metal material is made, not fragile, long service life; What is more important, end shell fragment, side shell fragment are all isolated with screw socket lamp ring, and screw socket lamp ring itself is not charged, has therefore improved security.

Safe lampholder of the present utility model, by screw socket lamp ring, end shell fragment and the side shell fragment of structure uniqueness are set, is ensureing, under the prerequisite of Electrical Safety, also to have extended service life, and overall structure is simple, easy for installation, fixing reliable, has good practicality.

Brief description of the drawings

Fig. 1 is the structure explosive view of safe lampholder of the present utility model.

Fig. 2 is the internal structure schematic diagram of safe lampholder of the present utility model.

Fig. 3 is the assembling schematic diagram (top view) of the utility model center platen, end shell fragment, side shell fragment and screw socket lamp ring.

Fig. 4 is the assembling schematic diagram (side view) of the utility model center platen, end shell fragment, side shell fragment and screw socket lamp ring.

Fig. 5 is the stereogram of safe lampholder of the present utility model.

Fig. 6 is the top view of the screw socket lamp ring in the utility model.

Fig. 7 is the internal structure schematic diagram (for convenience of representing, only drawing half) of the back seat in the utility model.

Accompanying drawing indicates: 1, screw socket lamp ring; 11, base plate; 12, internal thread circle; 13, groove; 14, fixed via; 15, screw; 2, the first binding post; 3, the second binding post; 4, end shell fragment; 41, protuberance; 5, side shell fragment; 51, protuberance 6, face frame; 7, base; 8, back seat; 81, back seat plate; 82, cylinder; 83, cavity; 84, screw; 85, back seat middle through-hole; 86, cylinder side through-hole; 87, the breach of back seat plate; 9, pressing plate.

Detailed description of the invention

Contrast accompanying drawing below, by the description to embodiment, detailed description of the invention of the present utility model is described in further detail as effect and the operation principle etc. of the mutual alignment between the shape of related each member, structure, each several part and annexation, each several part.

Embodiment 1:

As shown in the figure, the safe lampholder of the present embodiment comprises insulation crust, the side shell fragment 5 that be provided with screw socket lamp ring 1, the first binding post 2, the second binding post 3 and the end shell fragment 4 being electrically connected with the first binding post 2 in insulation crust, is electrically connected with the second binding post 3, key is that described screw socket lamp ring 1 is made up of the base plate 11 of metal material, annular internal thread circle 12 one, the middle part of described base plate 11 is provided with groove 13, one end of described groove 13 extends upwardly to the middle part of internal thread circle 12, and base plate 11 is provided with fixed via 14 at the side of groove 13; Shell fragment of the described end 4 is exposed to the groove 13 at base plate 11 middle parts, and side shell fragment 5 is exposed to the groove 13 of internal thread circle 12 sidepieces, and end shell fragment 4, side shell fragment 5 are all isolated with screw socket lamp ring 1.

Specifically, described insulation crust is fastened and is formed by face frame 6, base 7, is provided with successively back seat 8 and pressing plate 9 in insulation crust from top to bottom, described back seat 8 comprises back seat plate 81, described back seat plate 81 tops, middle part are provided with the cylinder 82 of upper opening, the middle part (being the position in cylinder 82) of back seat plate 81 is provided with through hole 85, and the sidewall of cylinder 82 is provided with strip through-hole 86, and back seat plate 81 is also provided with the breach 87 joining with described through hole 86, the both sides of back seat plate 81 are provided with cavity 83, the bottom opening of described cavity 83, and the top of cavity 83 is provided with through hole, the bottom of described cavity 83 is provided with screw, described screw socket lamp ring 1 is positioned at the cylinder 82 of base 7, the base plate 11 of screw socket lamp ring 1 is fixed on back seat plate 81 by screw 15, described the first binding post 2, the second binding post 3 are provided with the closed-in construction of screwed hole for top, and the first binding post 2, the second binding post 3 lay respectively in the cavity 83 of back seat 8 both sides, the middle part of end shell fragment 4 is positioned at the below of back seat plate 81, the stiff end of end shell fragment 4 is upward through back seat plate 81 and stretches in the first binding post 2, free end is upward through after the through hole 85 at back seat plate 81 middle parts, be exposed to the groove 13 at base plate 11 middle parts of screw socket lamp ring 1, the stiff end utilization of end shell fragment 4 is connected with the first binding post 2 through the screw 84 of the screwed hole of the through hole at cavity 83 tops, the first binding post 2 successively, the free end of side shell fragment 5 is arc-like sheet, the middle part of side shell fragment 5 is positioned at the below of back seat plate 81, the stiff end of side shell fragment 5 is upward through back seat plate 81 and stretches in the second binding post 3, the free end of side shell fragment 5 is upward through after the breach 87 of back seat plate 81, upwards extend and pass the through hole 86 of cylinder sidepiece, the top of arc-like sheet is stuck in the outside of cylinder 82, arc-like sheet is from top to bottom gradually by the middle part direction bending of cylinder 82 lateral internal thread circles 12 like this, the middle part of arc-like sheet and bottom all can be exposed to the groove 13 of internal thread circle 12 sidepieces of screw socket lamp ring 1, the through hole at cavity 83 tops is passed in the stiff end utilization of side shell fragment 5 successively, the screw 84 of the screwed hole of the second binding post 3 is connected with the second binding post 3, described frame 6 fastens with base 7, thereby back seat 8, pressing plate 9 are fixed in insulation crust. face frame 6 is provided with the through hole corresponding with screw socket lamp ring position for bulb mounting.

Stiff end and the free end of end shell fragment 4 are orthogonal, and stiff end and the free end of side shell fragment 5 are orthogonal. At the bottom of bulb electrode pair, the pressure of shell fragment 4, side shell fragment 5 is vertical with the stiff end of end shell fragment 4, side shell fragment 5 respectively like this, and under the supporting role of back seat 8 cavity 83 sidewalls, above-mentioned pressure can not promote end shell fragment 4, side shell fragment 5 moves, thereby has ensured the reliability of end shell fragment 4, side shell fragment 5 and bulb electrode contact.

The protuberance 51 that the middle part direction of the oriented screw socket lamp ring 1 of free end punching press of side shell fragment 5 is protruded, the free end punching press of shell fragment of the described end 4 has protuberance protruding upward 41. Raised part has increased the free-ended elasticity of shell fragment, can ensure mutually to compress between bulb electrode and shell fragment.

When bulb screws in after screw socket lamp ring 1, the electrode of light bulb base can contact with end shell fragment 4, and the electrode of bulb bottom can contact with side shell fragment 5, thereby realizes energising; Above-mentioned screw socket lamp ring 1 is made for metal material, not fragile, long service life; What is more important, end shell fragment 4, side shell fragment 5 are all isolated with screw socket lamp ring 1, and screw socket lamp ring 1 itself is not charged, has therefore improved security.

Above-mentioned screw socket lamp ring 1 is screwed on back seat plate 81, and the first binding post 2, the second binding post 3, end shell fragment 4, side shell fragment 5 also adopt the mode of screw to be fixed, and have improved reliability, and easy for installation. The middle part of shell fragment of the above-mentioned end 4 and side shell fragment 5 all utilizes back seat plate 81 and screw socket lamp ring 1 to isolate, and the free end of end shell fragment 4 and side shell fragment 5 is all positioned at groove 13 positions, the possibility of so just thoroughly having avoided end shell fragment 4, side shell fragment 5 to contact with screw socket lamp ring 1. And, the middle part of end shell fragment 4 and side shell fragment 5 all utilizes back seat plate 81, pressing plate 9 to be fixed, can prevent that end shell fragment 4 and side shell fragment 5 from arbitrarily moving, and fully ensure the free-ended elasticity of end shell fragment 4 and side shell fragment 5, and then improve end shell fragment 4 and the free end of side shell fragment 5 and the reliability of bulb electrode contact.

Claims (6)

1. a safe lampholder, comprise insulation crust, the side shell fragment that be provided with screw socket lamp ring, the first binding post, the second binding post and the end shell fragment being electrically connected with the first binding post in insulation crust, is electrically connected with the second binding post, it is characterized in that described screw socket lamp ring is made up of the base plate of metal material, annular internal thread circle one, the middle part of described base plate is provided with groove, one end of described groove extends upwardly to the middle part of internal thread circle, and base plate is provided with fixed via at the side of groove; Shell fragment of the described end is exposed to the groove at base plate middle part, and side shell fragment is exposed to the groove of internal thread circle sidepiece, and end shell fragment, side shell fragment are all isolated with screw socket lamp ring.

2. safe lampholder according to claim 1, is characterized in that described insulation crust is fastened and formed by face frame, base, is provided with back seat and pressing plate from top to bottom successively in insulation crust; Described back seat comprises back seat plate, and top, described back seat plate middle part is provided with the cylinder of upper opening, and the both sides of back seat plate are provided with cavity, the bottom opening of described cavity, and the top of cavity is provided with through hole; The bottom of described cavity is provided with screw; Described screw socket lamp ring is positioned at the cylinder of base, the base plate of screw socket lamp ring is screwed on back seat plate, described the first binding post, the second binding post are the closed-in construction that top is provided with screwed hole, the first binding post, the second binding post lay respectively in the cavity of back seat both sides, the stiff end of end shell fragment stretches in the first binding post, and utilizes the screw of the screwed hole of the through hole through cavity top, the first binding post to be successively connected with the first binding post; The stiff end of side shell fragment stretches in the second binding post, and utilizes the screw of the screwed hole of the through hole through cavity top, the second binding post to be successively connected with the second binding post; Described frame and base fasten, thereby back seat, pressing plate are fixed in insulation crust.

3. safe lampholder according to claim 2, is characterized in that the middle part of described back seat plate and the sidepiece of cylinder are equipped with through hole; The middle part of shell fragment of the described end is positioned at the below of back seat plate, and the stiff end of end shell fragment is upward through back seat plate and stretches in the first binding post, and free end is upward through after the through hole at back seat plate middle part, is exposed to the groove at the base plate middle part of screw socket lamp ring; The middle part of described side shell fragment is positioned at the below of back seat plate, and the stiff end of side shell fragment is upward through back seat plate and stretches in the second binding post, and free end is upward through after the through hole of cylinder sidepiece, is exposed to the groove of the internal thread circle sidepiece of screw socket lamp ring.

4. safe lampholder according to claim 3, is characterized in that the stiff end of shell fragment of the described end and free end are orthogonal, and stiff end and the free end of described side shell fragment are orthogonal.

5. safe lampholder according to claim 3, it is characterized in that described bedplate is provided with the breach joining with cylinder side through-hole, the free end of described side shell fragment is arc-like sheet, described arc-like sheet extends on the top to cylinder side through-hole from described indentation, there, the top of arc-like sheet is positioned at cylinder outside, and described arc-like sheet is from top to bottom gradually by the middle part direction bending of cylinder lateral internal thread circle.

6. safe lampholder according to claim 3, is characterized in that the protuberance that the middle part direction of the oriented screw socket lamp ring of free end punching press of described side shell fragment is protruded, and the free end punching press of shell fragment of the described end has protuberance protruding upward.