CN102097727A - Improved lamp holder conversion device - Google Patents

Abstract

The invention discloses an improved lamp holder conversion device, one end of which is a plug part suitable for an energy-saving lamp, and the other end of which is a threaded part capable of being screwed with a screw lamp holder, and the improved lamp holder conversion device is characterized by comprising: the fixture block is inserted in the thread part along the plane direction and the occlusion end swings along the plane direction; the elastic reset element enables the clamping block meshing end to extend out of the thread part and is connected with the clamping block to apply outward acting force to the clamping block; and the mounting groove is arranged on the threaded part and is used for accommodating the clamping block and the elastic reset element. The invention has simple structure and easy production and assembly, when the thread part is screwed in, the clamping block with thinner thickness can not cause obstacle to the screwing-in operation, when the thread part is screwed out, the clamping block biting end is embedded into the lamp holder thread and has very high biting force, and the clamping block biting end and the lamp holder thread can not be separated after screwing, so that a user can only continuously use the energy-saving lamp, and the effective implementation of energy-saving measures is ensured.

Description

Improved light head conversion device

technical field

The invention relates to the field of lamp decorations, in particular to a lamp cap conversion device.

Background technique

The installation method of compact fluorescent lamps currently on the market is clamping, and the two clamping feet are columnar, and the diameter of the head is larger than that of the column body. The special lamp holder for fluorescent lamps includes two sockets, the sockets are arc-shaped, symmetrically arranged on the circle centered on the axis of the lamp holder, the diameter of the insertion end of the socket is larger than the head of the clamping foot, and the diameter of the clamping end is smaller than that of the clamping foot head. When the clamping foot of the fluorescent lamp is inserted into the socket from the insertion end and rotates along the socket to the clamping end, the head of the clamping foot can be locked and cannot be released.

And general ordinary lamp holder is only applicable to the incandescent lamp of screw socket, therefore will install a lamp cap conversion device on the ordinary lamp holder additionally. The lamp cap conversion device includes a lamp base suitable for inserting into a compact fluorescent lamp and a threaded part suitable for connecting with a common lamp base. Since the lamp cap conversion device is detachably screwed to the common lamp socket, it is easy for the user to reuse the incandescent lamp when replacing the lamp, thereby increasing energy consumption.

In order to prevent people from dismantling the lamp cap conversion device and reusing non-energy-saving lamps, such as Chinese patent 200610033690.6 discloses a non-detachable conversion device, which is provided with an elastic pressure piece on the threaded part along the thread direction that can engage with the internal thread of the lamp holder , when the threaded part is screwed into the lamp holder, the elastic pressing piece is pressed to the inside, and the tines at the top are retracted into the opening, and the threaded part can be screwed in smoothly at this time. When the force is applied in the opposite direction, the elastic force of the elastic pressing piece itself makes it reset again, and the sharp teeth protrude and embed in the threaded sleeve of the lamp holder, so that the threaded part can no longer rotate, and the purpose of non-removable can be achieved. In this structure, the elastic pressing piece is in the shape of a thin sheet, and the occlusal end extends toward the thread unscrewing direction and covers above the opening of the threaded part. flat. Although the non-removable purpose can be achieved after installation, in this structure, in order to ensure a certain degree of occlusal force, the width of the occlusal end is generally larger than the thread pitch, that is, the occlusal end will span more than one thread tooth, and the elastic pressure piece itself The elastic force of the occlusal end always conflicts with the internal thread of the lamp holder, so that it cannot be screwed in smoothly during the installation process, which brings trouble to the user.

Contents of the invention

In order to solve the above problems, the object of the present invention is to provide an improved lamp cap conversion device, which has a simple structure, smooth installation and easy production.

The object of the present invention is achieved in this way: an improved lamp cap conversion device, one end is a plug part suitable for energy-saving lamps, and the other end is a threaded part that can be screwed with a screw socket. The flat plate-shaped clamping block reversed by the conversion device, the end of which the thread is unscrewed is the occlusal end, the clamping block is inserted into the threaded part along its plane direction and the occlusal end swings along the plane direction; the occlusal end of the clamping block protrudes The elastic reset element of the threaded part is connected with the block to exert an outward force on the block; the installation slot provided on the threaded part is used to accommodate the above-mentioned block and the elastic reset element.

The thickness of the block is not greater than the pitch of the threaded part.

The clamping block is inserted into the threaded portion obliquely at an angle parallel to or slightly larger than the threaded portion.

The occlusal end of the block corresponds to the bottom position of the threads of the threaded part.

The threaded part is a double-layer structure, the insulating inner layer is provided with a groove for installing the clamping block and the elastic reset element, and the conductive outer layer is provided with an opening for the occlusal end to protrude or retract and restrict the clamping block from loosening. hole.

The elastic return element is a compression spring or a torsion spring.

The compression spring is V-shaped or U-shaped.

One end of the V-shaped or U-shaped compression spring is provided with contact feet perpendicular to the plane where the V-shaped or U-shaped is located, and are used to resist the clamping block.

The invention has simple structure, easy production and assembly, and is suitable for mass production. A block is inserted into the threaded part along its plane direction, and the thickness side of the block protrudes from the threaded part by using the elastic force of the elastic reset element. The moving direction of the occlusal end is the plane direction of the clamping block. When the threaded part is screwed in, the occlusal end of the clamping block is pressed into the installation groove of the threaded part, and the thickness of the clamping block is relatively thin, so there will be no damage to the screwing operation. Obstacles, when the threaded part is unscrewed, the unscrewed force and the elastic force of the elastic reset element reset the occlusal end of the block and protrude out of the threaded part again, and its sharp teeth are embedded in the thread of the lamp holder and have a very high The occlusal force can limit the threaded part to be screwed into the lamp holder and cannot be screwed out in the opposite direction. After screwing together, the two cannot be separated, so that users can only continue to use energy-saving lamps to ensure the effective implementation of energy-saving measures.

Description of drawings

Fig. 1 is the front view of the present invention;

Fig. 2 is the bottom view of Fig. 1;

Fig. 3 is a sectional view of the internal structure of the present invention;

Fig. 4 is the structural representation of block of the present invention;

5-6 are structural diagrams of the elastic restoring element of the present invention.

Detailed ways

As shown in Figures 1 and 2, the present invention is an improved lamp cap conversion device, one end of which is a plug portion 2 suitable for the pin of an energy-saving lamp, and the other end is a threaded portion 1 that can be screwed to a screw socket. The threaded part 1 is provided with a clamping block 3 for fixing and locking the lamp cap conversion device and the lamp holder to prevent the lamp cap conversion device from reversing, and an elastic reset element 4 used in conjunction with the clamping block 3 .

As shown in Figures 1-3, the clamping block 3 is a planar piece with a certain thickness, the head is an occlusal end 31 provided with occlusal teeth, and the tail end is arc-shaped to facilitate the rotation of the clamping block 3 . The clamping block 3 is inserted into the threaded part 1 along its plane direction and the engaging end 31 is screwed out of the thread. The elastic return element 4 is connected with the clamping block 3 , and exerts an outward force on the clamping block 3 so that the occlusal end 31 protrudes from the threaded portion. Due to the elastic force of the elastic return element 4 , the occlusal end 31 can swing along the plane direction of the clamping block 3 , protruding or retracting into the threaded portion 1 . In order to make the protruding part of the occlusal end 31 enter along the thread, and install it more smoothly, preferably, the block 3 is inserted into the threaded part 1 at an angle parallel to or slightly greater than the angle of the thread. Preferably, the thickness of the clamping block 3 is not greater than the pitch of the threaded part 1, as in this example, the thickness of the clamping block 3 is about the width of the thread bottom of the threaded part 1 (about 1/2 pitch). Preferably, the occlusal end 31 of the clamping block 3 corresponds to the bottom position of the thread of the threaded part 1 .

One end of the elastic reset element 4 is against the installation slot of the threaded part 1 , and the other end is against the clamping block 3 to apply an outward force thereto. The elastic return element 4 can be a compression spring or a torsion spring. The compression spring is V-shaped or U-shaped. The compression spring can be installed on the inner side of the clamping block 3, with one end against the bottom of the installation slot of the threaded part 1, and the other end against the thickness side of the internal side of the clamping block 3 to exert an outward force on it. In order to prevent dislocation between the stage clip and the clamping block 3, one end of the V-shaped or U-shaped stage clip can be provided with a contact pin 41 perpendicular to the plane where the V-shaped or U-shaped plane is used to resist the clamping block (as shown in Figure 5-6 shown). During installation, the compression spring is positioned at the side of the plane of the block 3, and its contact pin 41 extends below the thickness side of the inner side of the block 3, exerting an outward force on the block 3. Alternatively, a small hole can be provided on the clamping block 3 near the occlusal end, and the contact pin 41 can be plugged into the small hole, which can also achieve the same effect. The same installation method can also be adopted for the torsion spring, one end of the torsion spring is fixed to the threaded part 1, and the other end is plugged into the above-mentioned small hole. As long as an outward force can be applied to the clamping block 3 to make the occlusal end 31 protrude from the threaded portion 1 .

As shown in FIG. 3 , the threaded part 1 has a double-layer structure, including a threaded conductive outer layer 11 and an insulating inner layer 12 . The insulating inner layer 12 is provided with a groove 121 for installing the block 3 and the elastic reset element 4, and the threaded conductive outer layer 11 is provided with an opening 111 for the occlusal end of the block 3 to protrude or retract and to limit the release of the block 3 . The groove 121 and the opening 111 together form a mounting slot on the threaded part 1 . During installation, the opening 111 corresponds to the position of the groove 121 (at this time, the length of the installation groove is the maximum value, which is convenient for the subsequent installation steps), and the block 3 and the elastic reset element 4 are loaded, and then the threaded conductive outer layer 11 is rotated. , so that the groove 121 and the opening 111 are staggered at a certain angle, and the length of the installation slot is narrowed. At this time, one side of the opening 111 is against the block 3, and the threaded conductive outer layer 11 is rotated until the block 3 cannot be moved from the The installation slot is loosened without affecting the protruding of the occlusal end 31, and finally the threaded conductive outer layer 11 and the insulating inner layer 12 are fixed (for example, with rivets) to complete the installation, which is very convenient.

The occlusal end 31 of the block 3 protrudes from the surface of the threaded part 1 under normal conditions. When the threaded part 1 is screwed in, the force of screwing in will press the occlusal end 31 into the installation groove of the threaded part 1. Only the part as wide as the side of the thickness of the block 3 is in contact with the lamp holder (generally the thickness is not large), so this part goes in along the thread without causing obstacles to the screw-in operation. When the threaded part 1 is to be unscrewed, the unscrewed force and the elastic force of the elastic reset element 4 make the occlusal end 31 of the block 3 reset and protrude outside the thread of the threaded part 1 again, and at the same time, the unscrewed force further presses it to protrude The part is embedded in the thread of the lamp holder, so that the lamp cap conversion device and the lamp holder can no longer rotate relative to each other. Moreover, although in this structure, the width of the position where the clamping block 3 is fitted with the lamp socket is small (only the thickness of the clamping block 3 is large), the entire plane side of the clamping block 3 plays a role in supporting this position, so that The bite strength is high, and it is not easy to be damaged and deformed.

Claims (8)

1. improved lamp head conversion device, an end is the intercalation part that is suitable for electricity-saving lamp, the threaded portion of the other end for being spirally connected with screw lamp holder is characterized in that comprising:

～can prevent the plain film shape fixture block that lamp head conversion device reverses, wherein an end that screws out direction to screw thread is an occlusal end, this fixture block is plugged in threaded portion and occlusal end along this in-plane swing along its in-plane;

～make the fixture block occlusal end stretch out the elastic reset member of threaded portion, it is connected with fixture block fixture block is applied outside active force;

～be located at the mounting groove position that being used on the threaded portion is installed in above-mentioned fixture block and elastic reset member.

2. improved lamp head conversion device according to claim 1 is characterized in that: the thickness of described fixture block is not more than threaded portion pitch.

3. improved lamp head conversion device according to claim 1 is characterized in that: described fixture block is plugged in the threaded portion obliquely to be parallel to or to be slightly larger than the angle of thread.

4. improved lamp head conversion device according to claim 1 is characterized in that: the occlusal end of described fixture block corresponding to the tooth of threaded portion screw thread at the bottom of the position.

5. improved lamp head conversion device according to claim 1, it is characterized in that: described threaded portion is a double-decker, inner insulating layer is provided with the groove that fixture block and elastic reset member can be installed, and skin is provided with for occlusal end and stretches out or retraction and limit the perforate that fixture block gets loose.

6. improved lamp head conversion device according to claim 1 is characterized in that: described elastic reset member is stage clip or torsion spring.

7. improved lamp head conversion device according to claim 6 is characterized in that: described stage clip is V-type or U type.

8. improved lamp head conversion device according to claim 6 is characterized in that: described V-type or U type stage clip one end are provided with the haptic element that is used to prop up fixture block perpendicular to V-type or plane, U type place.

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