Low-cost rear-mounted lamp holder structure

Abstract

The utility model relates to a low-cost rear-mounted lamp holder structure which comprises a reflective mirror, a lamp holder and a bulb. A mounting hole penetrating front and back is formed in the reflective mirror, and a connecting column is further arranged on the rear side of the reflective mirror; the lamp holder comprises a mounting cylinder and a connecting plate, the mounting cylinder is coaxially arranged in the mounting hole, the connecting plate is connected with the rear end of the mounting cylinder, and the connecting plate is connected with the rear end of the connecting column; the bulb is detachably mounted at the front end of the lamp holder; the lamp holder is installed from the rear side, the structure is simple, installation is convenient, cost reduction is facilitated, in addition, compared with installation of the lamp holder from the front side, fastening can be guaranteed through bolt tightening, tight fit is not only relied on, loosening is not prone to occurring, and electric connection is more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle lamps, and particularly relates to a low-cost retrofit lamp socket structure. Background Art

[0002] Halogen bulbs are often used in combination signal lamps. The bulbs need to be connected and fixed to a reflector (or lamp housing), and at the same time, the connection reliability of the positive and negative poles needs to be ensured. For this purpose, a lamp socket is required to maintain the connection and fixation between the bulb and the reflector (or lamp housing).

[0003] The function of the lamp socket is to install the bulb and then tightly fit and fix it to the reflector (or lamp housing). During actual use, the following requirements need to be met: 1. After the bulb is tightened on the lamp socket, it is tightly fitted and there is no looseness, meeting the vibration requirements of the national standard GB / T10485; 2. The lamp socket and the reflector (or lamp housing) are tightly fitted and installed, meeting the vibration requirements; 3. After the bulb, lamp socket, and reflector (or lamp housing) are installed, the electrical connection is reliable, without looseness or virtual contact, and the bulb lights up without flickering; 4. The bulb is easy to disassemble, install, and replace. During the production process, the reliable fastening, easy installation, and electrical connection reliability of the lamp core need to be concerned and solved. Summary of the Utility Model

[0004] Based on the above description, the utility model provides a low-cost retrofit lamp socket structure. By installing the lamp socket from the rear side, the structure is simple, easy to install, and beneficial to cost reduction. In addition, compared with installing the lamp socket from the front side, the utility model can ensure fastening by tightening bolts, not only relying on tight fitting, and is less likely to become loose, and the electrical connection is more stable.

[0005] The technical solution for the utility model to solve the above technical problems is as follows: A low-cost retrofit lamp socket structure includes a reflector, a lamp socket, and a bulb; the reflector is provided with an installation hole that penetrates through the front and rear, and a connecting column is further provided on the rear side of the reflector; the lamp socket includes an installation cylinder and a connecting plate, the installation cylinder is coaxially arranged in the installation hole, the connecting plate is connected to the rear end of the installation cylinder, and the connecting plate is connected to the rear end of the connecting column; the bulb is detachably installed at the front end of the lamp socket.

[0006] Based on the above technical solution, the utility model can be further improved as follows.

[0007] Further, the installation cylinder is in interference fit with the installation hole, and a fitting gap is provided on the side wall of the installation cylinder, and the fitting gap communicates with the front and rear ends of the installation cylinder.

[0008] Further, one end of the connecting plate is integrally connected to the side of the installation cylinder away from the connecting column through a bending part, the other end of the connecting plate is connected to the rear end of the connecting column; a wire outlet hole that matches the rear end of the installation cylinder is provided on the connecting plate.

[0009] Furthermore, the lamp holder also includes a telescopic cylinder; the telescopic cylinder includes a front cylinder and a rear cylinder, the rear cylinder is installed in the wire outlet hole, the front cylinder can be slidably inserted into the front end of the rear cylinder, and an elastic member connecting the front cylinder and the rear cylinder is provided in the rear cylinder; the front end of the front cylinder is provided with one or two connecting contacts matching the light bulb, and the rear end of the rear cylinder is provided with wiring bolts corresponding to the connecting contacts one by one, and the connecting contacts and the corresponding wiring bolts are connected by wires.

[0010] Furthermore, the lamp holder also includes a clamping plate; the clamping plate is arranged between the connecting plate and the mounting tube, and a clamping slot with an opening on one side is arranged on the clamping plate, and the two sides of the opening of the clamping slot are respectively close to the two sides of the bending part; positioning grooves are respectively arranged on the opposite sides of the rear cylinder body, the rear cylinder body passes through the clamping slot, and the two sides of the clamping slot are respectively arranged in the positioning grooves on both sides.

[0011] Furthermore, the outer edge of the clamping plate is flush with the outer side wall of the mounting tube, and the end of the clamping slot away from the opening is in close contact with the rear tube; a baffle is provided on the rear side of the reflector, and the baffle is in close contact with the mounting tube and the side of the clamping plate away from the bending portion.

[0012] Furthermore, a clamping block is provided on the side wall of the mounting tube; a limiting ring is provided on the rear part of the inner wall of the mounting hole, and a through groove matching the clamping block is provided on the limiting ring; the clamping block is used to move from the rear side of the limiting ring to the front side of the limiting ring through the through groove, and is used to resist the front side wall of the limiting ring after the mounting tube is rotated.

[0013] Furthermore, a limit block is provided on the rear side of the reflector, the limit block matches with one side of the connecting plate, and the limit block is used to limit the rotation angle of the mounting tube.

[0014] Furthermore, a plurality of abutment ribs are provided on the front portion of the inner wall of the mounting hole, and the abutment ribs abut against the outer side wall of the mounting tube.

[0015] Furthermore, the connecting plate is connected to the rear end of the connecting column via connecting bolts.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0017] 1. The utility model installs the lamp holder from the rear side, which has a simple structure and is easy to install, thus helping to reduce costs;

[0018] 2. Compared with installing the lamp socket from the front side, the utility model can ensure fastening by tightening bolts, not only relying on a tight fit, making it less likely to become loose and the electrical connection more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 FIG. 6 is a schematic structural view of a low-cost retrofit lamp socket structure provided in Embodiment 1 of the utility model;

[0020] Figure 2 FIG. 10 is a schematic structural view of the lamp housing in Embodiment 1 of the utility model;

[0021] Figure 3 FIG. 14 is a cross-sectional view of the mounting hole in Embodiment 1 of the utility model;

[0022] Figure 4 FIG. 18 is a schematic structural view of the lamp socket in Embodiment 1 of the utility model;

[0023] Figure 5 FIG. 22 is a schematic structural view of the light bulb in Embodiment 1 of the utility model;

[0024] Figure 6 FIG. 26 is a schematic structural view of a low-cost retrofit lamp socket structure provided in Embodiment 2 of the utility model;

[0025] Figure 7 FIG. 30 is a schematic structural view of the lamp socket in Embodiment 2 of the utility model;

[0026] Figure 8 FIG. 34 is a schematic structural view of the telescopic cylinder in Embodiment 2 of the utility model;

[0027] Figure 9 FIG. 38 is a cross-sectional view of the telescopic cylinder in Embodiment 2 of the utility model;

[0028] Figure 10 FIG. 42 is a schematic structural view of the clamping plate in Embodiment 2 of the utility model;

[0029] In the drawings, the list of components represented by each reference numeral is as follows:

[0030] 1, reflector; 11, mounting hole; 12, connecting column; 13, baffle; 14, limiting block; 15, limiting ring; 16, through groove; 17, abutting rib; 2, lamp socket; 21, mounting cylinder; 211, bayonet structure; 212, mating gap; 213, clamping block; 22, connecting plate; 221, wire outlet hole; 23, bending part; 24, telescopic cylinder; 241, front cylinder body; 242, rear cylinder body; 243, elastic member; 244, connecting contact; 245, wiring bolt; 246, wire; 247, positioning groove; 25, clamping plate; 251, clamping groove; 3, light bulb; 4, connecting bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] To facilitate the understanding of the present application, the present application will be described more comprehensively below with reference to the relevant attached drawings. Embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used in the description of the present application herein are only for the purpose of describing specific embodiments and are not intended to limit the present application.

[0033] It can be understood that spatial relationship terms such as "under", "below", "lower", "beneath", "above", "upper", etc. can be used herein to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that in addition to the orientation shown in the figure, spatial relationship terms also include different orientations of the device during use and operation. For example, if the device in the figure is flipped, an element or feature described as "under other elements" or "beneath it" or "under it" will be oriented "above" other elements or features. Therefore, the exemplary terms "under" and "below" can include both the upper and lower orientations. In addition, the device can also include other orientations (such as rotating 90 degrees or other orientations), and the spatial descriptive terms used herein are accordingly interpreted.

[0034] Embodiment 1

[0035] A low-cost retrofit lamp socket structure includes a reflector 1, a lamp socket 2, and a bulb 3. The reflector 1 is provided with an installation hole 11 penetrating through the front and back, and a connecting column 12 is further provided at the rear side of the reflector 1. The lamp socket 2 includes an installation cylinder 21 and a connecting plate 22. The installation cylinder 21 is coaxially arranged in the installation hole 11, the connecting plate 22 is connected to the rear end of the installation cylinder 21, and the connecting plate 22 is connected to the rear end of the connecting column 12. The bulb 3 is detachably installed at the front end of the lamp socket 2.

[0036] The bulb 3 of this embodiment is a bayonet type, so a bayonet structure 211 for connecting a bayonet type bulb is provided at the front end of the lamp socket 2.

[0037] The reflector 1 in this embodiment can also be replaced with a lamp housing. The lamp socket 2 is installed from the rear side of the lamp housing, and the lamp housing and the bulb 3 are connected through the lamp socket 2.

[0038] Specifically, one end of the connecting plate 22 is integrally connected to the side of the mounting cylinder 21 away from the connecting column 12 through a bending portion 23, and the other end of the connecting plate 22 is connected to the rear end of the connecting column 12 through a connecting bolt 4. A wire outlet hole 221 matching the rear end of the mounting cylinder 21 is provided on the connecting plate 22. After the bulb 3 is installed at the front end of the lamp holder 2, the contacts at the rear end of the bulb 3 can be connected through leads, and the leads are led out through the wire outlet hole 221.

[0039] In addition, a clamping block 213 is provided on the side wall of the mounting cylinder 21. A limiting ring 15 is provided at the rear part of the inner wall of the mounting hole 11, and a through groove 16 matching the clamping block 213 is provided on the limiting ring 15. The clamping block 213 moves from the rear side of the limiting ring 15 to the front side of the limiting ring 15 through the through groove 16, and abuts against the front side wall of the limiting ring 15 after the mounting cylinder 21 rotates, thereby fixing the mounting cylinder 21 in the mounting hole 11. A plurality of abutting ribs 17 are provided at the front part of the inner wall of the mounting hole 11, and the abutting ribs 17 abut against the outer side wall of the mounting cylinder 21.

[0040] The mounting cylinder 21 is in interference fit with the limiting ring 15 and the abutting ribs 17, further ensuring that the mounting cylinder 21 is fastened in the mounting hole 11. A fitting gap 212 is provided on the side wall of the mounting cylinder 21, and the fitting gap 212 communicates with the front and rear ends of the mounting cylinder 21, enabling the mounting cylinder 21 to contract and thus be inserted into the mounting hole 11.

[0041] A baffle 13 is provided at the rear side of the reflector 1. The baffle 13 is closely attached to the side of the mounting cylinder 21 away from the bending portion 23, and the connecting plate 22 is closely attached to the rear side of the baffle 13. A limiting block 14 is provided at the rear side of the baffle 13. The limiting block 14 matches one side of the connecting plate 22, and the limiting block 14 is used to limit the rotation angle of the mounting cylinder 21.

[0042] In this embodiment, by installing the lamp holder 2 from the rear side, the structure is simple, the installation is convenient, and the cost is reduced. In addition, compared with installing the lamp holder 2 from the front side, in this embodiment, the tightening can be ensured by tightening the bolts, not only relying on the tight fit, and it is less likely to become loose, and the electrical connection is more stable.

[0043] Embodiment 2

[0044] The difference between this embodiment and Embodiment 1 is that the lamp holder 2 further includes a telescopic cylinder 24 and a clamping plate 25.

[0045] The telescopic cylinder 24 includes a front cylinder body 241 and a rear cylinder body 242. The rear cylinder body 242 is installed in the wire outlet hole 221. The front cylinder body 241 is slidably inserted into the front end of the rear cylinder body 242, and an elastic member 243 connecting the front cylinder body 241 and the rear cylinder body 242 is provided in the rear cylinder body 242.

[0046] The pallet 25 is arranged between the connecting plate 22 and the mounting cylinder 21. A card slot 251 with an opening on one side is provided on the pallet 25. Both sides of the opening of the card slot 251 are respectively in close contact with both sides of the bending part 23. Positioning grooves 247 are respectively provided on opposite sides of the rear cylinder body 242. The rear cylinder body 242 passes through the card slot 251, and both sides of the card slot 251 are respectively arranged in the positioning grooves 247 on both sides, thereby fixing the telescopic cylinder 24 in the wire outlet hole 221. The pallet 25 can also fill the gap between the connecting plate 22 and the mounting cylinder 21, playing a role in strengthening the lamp holder 2.

[0047] In this embodiment, the outer edge of the pallet 25 is flush with the outer side wall of the mounting cylinder 21, and one end of the card slot 251 far from the opening is in close contact with the rear cylinder body 242. The baffle 13 is in close contact with the mounting cylinder 21 and the side of the pallet 25 away from the bending part 23. The baffle 13 can play a role in limiting the pallet 25.

[0048] One or two connection contacts 244 matching the bulb 3 are provided at the front end of the front cylinder body 241. A wiring bolt 245 corresponding to the connection contact 244 one by one is provided at the rear end of the rear cylinder body 242. The connection contact and the corresponding wiring bolt 245 are connected by a wire 246.

[0049] Specifically, if the bulb 3 is a double-contact bulb, two connection contacts 244 and two wiring bolts 245 are provided on the telescopic cylinder 24. By connecting the two wiring bolts 245 through a lead wire, the electrical connection of the two poles of the bulb 3 can be realized.

[0050] In this embodiment, the bulb 3 is a single-contact bulb. Therefore, one connection contact 244 and one wiring bolt 245 are provided on the telescopic cylinder 24. By connecting the wiring bolt 245 through a lead wire, the electrical connection of one of the poles of the bulb 3 can be realized. By connecting the lead wire and the connection bolt 4, the electrical connection of the other pole of the bulb 3 can be realized.

[0051] In this embodiment, by providing the telescopic cylinder 24, the installation process of the bulb 3 is further simplified. After the bulb 3 is installed, the contacts of the bulb 3 automatically come into contact with the connection contacts 244, and there is no need to wire the contacts of the bulb 3.

[0052] The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A low-cost rear-mounted lamp holder structure, characterized in that: It includes a reflector, a lamp holder and a bulb; the reflector is provided with a mounting hole that runs through the front and back, and a connecting column is also provided on the rear side of the reflector; the lamp holder includes a mounting tube and a connecting plate, the mounting tube is coaxially arranged in the mounting hole, the connecting plate is connected to the rear end of the mounting tube, and the connecting plate is connected to the rear end of the connecting column; the bulb is detachably mounted on the front end of the lamp holder.

2. A low-cost aftermarket lamp holder structure according to claim 1, characterized in that: The installation tube is interference-fitted with the installation hole, and a fitting gap is provided on the side wall of the installation tube, and the fitting gap communicates the front and rear ends of the installation tube.

3. A low-cost aftermarket lamp holder structure according to claim 2, characterized in that: One end of the connecting plate is integrally connected to the side of the mounting tube away from the connecting column through a bending portion, and the other end of the connecting plate is connected to the rear end of the connecting column; a wire outlet hole matching the rear end of the mounting tube is provided on the connecting plate.

4. The low-cost aftermarket lamp holder structure according to claim 3, characterized in that: The lamp holder also includes a telescopic cylinder; the telescopic cylinder includes a front cylinder and a rear cylinder, the rear cylinder is installed in the wire outlet hole, the front cylinder can be slidably inserted into the front end of the rear cylinder, and an elastic member connecting the front cylinder and the rear cylinder is arranged in the rear cylinder; the front end of the front cylinder is provided with one or two connecting contacts matching the light bulb, and the rear end of the rear cylinder is provided with wiring bolts corresponding to the connecting contacts one by one, and the connecting contacts and the corresponding wiring bolts are connected by wires.

5. The low-cost retrofit lamp holder structure according to claim 4, characterized in that: The lamp holder also includes a clamping plate; the clamping plate is arranged between the connecting plate and the mounting tube, and a clamping slot with an opening on one side is arranged on the clamping plate, and the two sides of the opening of the clamping slot are respectively close to the two sides of the bending part; positioning slots are respectively arranged on the opposite sides of the rear cylinder body, the rear cylinder body passes through the clamping slot, and the two sides of the clamping slot are respectively arranged in the positioning slots on both sides.

6. The low-cost retrofit lamp holder structure according to claim 5, characterized in that: The outer edge of the clamping plate is flush with the outer side wall of the mounting tube, and the end of the clamping slot away from the opening is in close contact with the rear cylinder; a baffle is provided on the rear side of the reflector, and the baffle is in close contact with the mounting tube and the side of the clamping plate away from the bending portion.

7. The low-cost retrofit lamp holder structure according to claim 1, characterized in that: A clamping block is arranged on the side wall of the mounting tube; a limiting ring is arranged on the rear part of the inner wall of the mounting hole, and a through groove matching the clamping block is arranged on the limiting ring; the clamping block is used to move from the rear side of the limiting ring to the front side of the limiting ring through the through groove, and is used to resist the front side wall of the limiting ring after the mounting tube is rotated.

8. The low-cost retrofit lamp holder structure according to claim 7, characterized in that: A limit block is arranged on the rear side of the reflector, the limit block matches with one side of the connecting plate, and the limit block is used to limit the rotation angle of the mounting tube.

9. The low-cost retrofit lamp holder structure according to claim 7, characterized in that: A plurality of abutment ribs are arranged at the front of the inner wall of the mounting hole, and the abutment ribs abut against the outer side wall of the mounting tube.

10. The low-cost retrofit lamp holder structure according to claim 1, characterized in that: The connecting plate is connected to the rear end of the connecting column through connecting bolts.

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