High light efficiency spotlight with stretching mechanism
By introducing a tensioning mechanism into the high-intensity spotlight, and utilizing components such as a tensioning plate, a sliding frame, and bevel gears, the safe replacement of the high-intensity spotlight bulb is achieved, solving the problem of easy damage to the lamp head in the existing technology and realizing a convenient and safe bulb replacement process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU QIUSHI LIGHTING TECHNOLOGY CO LTD
- Filing Date
- 2025-07-09
- Publication Date
- 2026-07-14
AI Technical Summary
The existing spotlights are prone to damaging the internal structure of the lamp holder when the bulb is replaced, leading to lighting failure. There is an urgent need to improve the replacement method.
The system employs a tensioning mechanism, which pulls the sliding frame via a tensioning plate to drive the replacement frame. A knob drives the shaft and bevel gear to rotate and replace the high-power bulb. A spring pushes the conductive rod to connect and disconnect the power supply, ensuring that there are no electrical sparks during the bulb replacement process.
It enables convenient replacement of high-intensity spotlight bulbs, avoids damage to the lamp holder, and ensures the safety and reliability of the replacement process.
Smart Images

Figure CN224498356U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a high-efficiency spotlight with a stretching mechanism, and in particular to a high-efficiency spotlight with a stretching mechanism, belonging to the field of high spotlight technology. Background Technology
[0002] A handheld spotlight is a practical lighting tool. It features high brightness, emitting a strong beam that illuminates a considerable distance, making it highly effective in scenarios such as night patrols, wilderness exploration, and search and rescue. Its lightweight and portable design allows for easy handheld operation and flexible adjustment of the beam angle. Some models also possess drop-resistant features, enabling them to withstand complex and harsh environments. Furthermore, battery life is crucial; a good handheld spotlight can operate stably for extended periods, providing reliable lighting support for users.
[0003] The development of spotlights is beneficial for nighttime illumination, making the visible field of view wider at night. However, in the existing technology of spotlights, when replacing the spotlight bulb, the lamp head needs to be rotated to one side to separate the rotating lamp head from the lamp tube. If the operation method is incorrect, it will damage the internal structure of the lamp head, resulting in lighting failure. Therefore, there is an urgent need to improve a high-efficiency spotlight with a stretching mechanism to solve the above-mentioned problems. Utility Model Content
[0004] The purpose of this utility model is to provide a high-efficiency spotlight with a stretching mechanism. By pulling the stretching plate, the sliding frame pulls the replacement frame through the shaft, causing the high-intensity bulb to separate from the spotlight head. At this time, the knob simultaneously drives the drive shaft and shaft to rotate the replacement frame. The rotating replacement frame replaces the high-intensity bulb. When the stretching plate is released, the sliding frame is pushed back to its original position by the first spring. At this time, the replaced high-intensity bulb is located inside the spotlight head.
[0005] To achieve the above objectives, the main technical solution adopted by this utility model includes: a high-efficiency spotlight with a stretching mechanism, comprising a lamp head, a focusing cover connected to the front side of the lamp head by a threaded connection, a stretching assembly provided on the inner side of the lamp head, the stretching assembly being used for replacing the high-efficiency spotlight bulb, the stretching assembly including a replacement frame, the front side of the replacement frame being attached to the rear side of the focusing cover, the rear side of the replacement frame being used to place three sets of high-efficiency spotlights, and a positioning frame being attached to the rear side of the replacement frame.
[0006] Preferably, the inner side of the positioning frame is provided with three sets of fixing plates, and the inner sides of the three sets of fixing plates are fixedly connected to the rear side of the replacement frame by bolts. The rear side of the positioning frame is provided with a sliding groove, and the inner side of the sliding groove is arranged with three sets of slots, and the three sets of slots correspond to the power receiving ends of the three sets of high-intensity spotlights.
[0007] Preferably, a conductive rod is slidably connected to the inner side of the groove, and the front end of the conductive rod is connected to the power receiving end of one of the high-intensity spotlights.
[0008] Preferably, a sleeve is slidably connected to the outer side of the conductive rod, the conductive rod is pushed by a second spring on the inner side of the sleeve, a conductive post is provided on the rear side of the sleeve, the end of the conductive post away from the sleeve extends to the outer side of the lamp head, and a lamp tube is connected to the rear side of the lamp head by a threaded connection.
[0009] Preferably, a shaft is coaxially arranged on the inner side of the replacement frame, and a retaining ring is provided at the front end of the shaft. The front side of the retaining ring fits against the rear side of the replacement frame. Three sets of positioning pins are arranged on the front side of the retaining ring. The three sets of positioning pins are inserted into the inner side of the replacement frame. The front side of the replacement frame is threadedly connected to the front side of the shaft by flange bolts. A sliding groove extends through the upper side of the lamp head. One side of the sliding groove extends to the rear side of the lamp head. Sealing gaskets are embedded in the inner wall of the sliding groove.
[0010] Preferably, a first bevel gear is provided at the end of the shaft away from the replacement frame, a sliding frame is provided on the outer side of the first bevel gear, a drive shaft is rotatably connected to the inner side of the sliding frame, and the lower side of the drive shaft is adapted to the outer side of the first bevel gear through a second bevel gear.
[0011] Preferably, a knob is provided on the upper side of the drive shaft, the upper side of the sliding frame is slidably connected to the inner side of the sliding groove, a tension plate is provided on the upper side of the sliding frame, the outer side of the tension plate extends to the rear side of the lamp head, and four sets of symmetrical sliding rods are slidably connected to the outer side of the sliding frame via a sliding plate, wherein a first spring is spirally wrapped around the outer side of two sets of sliding rods, and the rear ends of the four sets of symmetrical sliding rods are fixedly connected to the inner side of the lamp head.
[0012] This utility model has at least the following beneficial effects: when the stretching plate is pulled, the sliding frame pulls the replacement frame by driving the shaft through the first bevel gear. The replacement frame causes one set of high spotlights to separate from the spotlight head. The knob drives the second bevel gear, the first bevel gear and the shaft to rotate through the drive shaft. At this time, the positioning frame rotates along the front side of the conductive rod through the slide groove. The sleeve pushes the conductive rod through the second spring. The front end of the conductive rod connects to the power receiving end of another set of high spotlights through another set of slots. When the stretching plate is released, the sliding plate is pushed by the first spring to slide on the outside of the slide rod. The replacement frame causes the other set of high spotlights to be located inside the spotlight head, and the replacement of the high spotlights is completed. Attached Figure Description
[0013] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the inner structure of the lamp holder 1 of this utility model;
[0016] Figure 3 This utility model is for Figure 2 Enlarged view of point A;
[0017] Figure 4 This utility model is for Figure 2 Enlarged view of point B;
[0018] Figure 5 This utility model is for Figure 2 Enlarged view of point C;
[0019] Figure 6 This is one of the overall structural diagrams of the tensioning component of this utility model;
[0020] Figure 7 This is the second schematic diagram of the overall structure of the tensioning component of this utility model;
[0021] Figure 8 This is the third schematic diagram of the overall structure of the tensioning component of this utility model.
[0022] In the diagram, 1. Lamp head; 101. Sliding groove; 11. Tensioning assembly; 111. Replacement frame; 12. Positioning frame; 121. Sliding groove; 122. Slot; 123. Fixing plate; 13. Shaft; 1311. Retaining ring; 1312. Positioning post; 131. First bevel gear; 132. Sliding frame; 1321. Slide plate; 1322. Slide rod; 1323. First spring; 133. Drive shaft; 134. Second bevel gear; 135. Knob; 136. Tensioning plate; 14. Conductive rod; 141. Sleeve; 142. Second spring; 143. Conductive post; 2. Concentrator; 3. Lamp tube. Detailed Implementation
[0023] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.
[0024] like Figures 1-8 As shown, this embodiment provides a high-efficiency spotlight with a stretching mechanism, including a lamp head 1. A condenser cover 2 is threadedly connected to the front side of the lamp head 1. A stretching assembly 11 is provided on the inner side of the lamp head 1. The stretching assembly 11 is used to replace the high-efficiency spotlight bulb. The stretching assembly 11 includes a replacement frame 111. The front side of the replacement frame 111 is attached to the rear side of the condenser cover 2. The rear side of the replacement frame 111 is used to place three sets of high-efficiency spotlights. A positioning frame 12 is attached to the rear side of the replacement frame 111.
[0025] Furthermore, the inner side of the positioning frame 12 is provided with three sets of fixing plates 123. The inner sides of the three sets of fixing plates 123 are fixedly connected to the rear side of the replacement frame 111 by bolts. The rear side of the positioning frame 12 is provided with a sliding groove 121. The inner side of the sliding groove 121 is arranged with three sets of slots 122. The three sets of slots 122 correspond to the power receiving ends of the three sets of high spotlights. The inner side of the sliding groove 121 is slidably connected with a conductive rod 14. The front end of the conductive rod 14 is connected to the power receiving end of one of the sets of high spotlights.
[0026] Among them, the outer side of the conductive rod 14 is slidably connected to the sleeve 141, the inner side of the sleeve 141 is pushed by the second spring 142, the rear side of the sleeve 141 is provided with a conductive post 143, the end of the conductive post 143 away from the sleeve 141 extends to the outside of the lamp head 1, and the rear side of the lamp head 1 is connected to the lamp tube 3 by a threaded connection.
[0027] In this method, the three sets of fixing plates 123 set on the positioning frame 12 are fixed to the rear side of the replacement frame 111 by bolts. At this time, the three sets of high spotlights can be fixed. It is beneficial that the three sets of slots 122 arrayed on the inner side of the slide 121 correspond to the power receiving end of the three sets of high spotlights respectively. The conductive rod 14 is pushed to slide inside the sleeve 141 by the second spring 142. At this time, it is convenient for the front end of the conductive rod 14 to connect with the power receiving end of the high spotlight through the slot 122. The lamp tube 3 is set to facilitate the placement of dry batteries. Furthermore, the setting of the conductive post 143 and the sleeve 141 facilitates the power output of the dry battery to power the high spotlight.
[0028] Furthermore, a shaft 13 is coaxially arranged on the inner side of the replacement frame 111, and a retaining ring 1311 is provided at the front end of the shaft 13. The front side of the retaining ring 1311 fits against the rear side of the replacement frame 111. Three sets of positioning pins 1312 are arranged on the front side of the retaining ring 1311. The three sets of positioning pins 1312 are inserted into the inner side of the replacement frame 111. The front side of the replacement frame 111 is connected to the front side of the shaft 13 by flange bolts. A sliding groove 101 is passed through the upper side of the lamp head 1. One side of the sliding groove 101 extends to the rear side of the lamp head 1. The inner wall of the sliding groove 101 is inlaid with sealing gaskets. A first bevel gear 131 is provided at the end of the shaft 13 away from the replacement frame 111. A sliding frame 132 is provided on the outer side of the first bevel gear 131. A drive shaft 133 is rotatably connected to the inner side of the sliding frame 132. The lower side of the drive shaft 133 is adapted to the outer side of the first bevel gear 131 through a second bevel gear 134.
[0029] The drive shaft 133 has a knob 135 on its upper side. The upper side of the sliding frame 132 is slidably connected to the inner side of the sliding groove 101. The upper side of the sliding frame 132 has a tension plate 136. The outer side of the tension plate 136 extends to the rear side of the lamp head 1. The outer side of the sliding frame 132 is slidably connected to four sets of symmetrical sliding rods 1322 via a sliding plate 1321. Two sets of sliding rods 1322 have a first spring 1323 spirally wrapped around their outer sides. The rear ends of the four sets of symmetrical sliding rods 1322 are all fixedly connected to the inner side of the lamp head 1.
[0030] In this method, the shaft 13 is engaged with the three sets of positioning pins 1312 via the retaining ring 1311, which facilitates the rotation of the replacement frame 111 by the shaft 13. The flange bolts further secure the replacement frame 111 to the shaft 13. Manually pulling the tension plate 136 causes the replacement frame 111 to completely detach from the condenser 2, disconnecting the power supply circuit. The upper side of the sliding frame 132 slides along the inner side of the sliding groove 101. The sealing gasket embedded in the inner wall of the sliding groove 101 facilitates waterproofing. The first bevel gear 131, set according to the shaft 13, is located inside the sliding frame 132. The sliding frame 132 drives the replacement frame 111 to slide via the shaft 13. At this time, one set of high-intensity spotlights separates from the condenser 2. Due to the power-off state, the separation of the conductive rod 14 from the slot 122 and subsequent sliding will not generate electric sparks. The knob 135 facilitates rotation by the user, as the drive shaft 133 drives... The second bevel gear 134 rotates inside the sliding frame 132, which facilitates the second bevel gear 134 driving the first bevel gear 131 to rotate the replacement frame 111. According to the above description, when the replacement frame 111 rotates, the front end of the conductive rod 14 will move out of the slot 122. At this time, the front end of the conductive rod 14 slides along the inside of the slide groove 121. The positioning frame 12 ensures the movement trajectory of the conductive rod 14. This makes it easy for the front side of the conductive rod 14 to correspond with another set of slots 122. The second spring 142 pushes the conductive rod 14 to connect with the power receiving end of another set of high spotlights. After the tension plate 136 is released, the first spring 1323 pushes the corresponding two sets of sliding plates 1321 to reset along the sliding rod 1322, so that the replaced high spotlight accurately returns to the inside of the focusing cover 2 and completes the connection. The other two sets of sliding rods 1322 and sliding plates 1321 play an auxiliary guiding and anti-torsion role, ensuring that the sliding frame 132 moves smoothly without jamming or swaying.
[0031] like Figures 1-8As shown, the principle of a high-efficiency spotlight with a stretching mechanism provided in this embodiment is as follows: The power supply system of the lamp head 1 is prior art, and its operation will not be described in detail here. First, the stretching plate 136 is pulled manually. At this time, the upper side of the sliding frame 132 slides inside the sliding groove 101. At the same time, the sliding frame 132 drives the shaft 13 to pull the replacement frame 111 through the first bevel gear 131 on the inner side. The replacement frame 111 drives one set of high spotlights to separate from the spotlight head 1. At this time, the high spotlights have completely left the illumination area of the spotlight head 1, and the power supply circuit is in the disconnected state. Then, the knob 135 is rotated to drive the drive shaft 133 to rotate the second bevel gear 134. The second bevel gear 134 rotates the shaft 13 through the first bevel gear 131, and the shaft 13 rotates the replacement frame 111. At this time, the positioning frame 12 rotates along the front side of the conductive rod 14 through the slide groove 121. The rotating positioning frame 12 causes the front side of the conductive rod 14 to disengage from the slot 122. Since the power is off at this time, the conductive rod 14 will not generate electric sparks when sliding along the inner side of the slide groove 121. When the other set of slots 122 corresponds to the front side of the conductive rod 14, the second spring 142 inside the sleeve 141 pushes the conductive rod 14. The front end of the conductive rod 14 connects with the power receiving end of the other set of high spotlights through the other set of slots 122. At this time, the tension plate 136 is released and the slide plate 1321 is pushed by the first spring 1323 to slide outside the slide rod 1322. Thus, the sliding frame 132 drives the replacement frame 111 to place the outer side of the other set of high spotlights inside the spotlight head 1 and complete the replacement of the high spotlights.
[0032] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.
Claims
1. A high-efficiency spotlight with a stretching mechanism, comprising a lamp head (1), characterized in that: The front side of the lamp head (1) is connected to a condenser cover (2) by a threaded connection. The inner side of the lamp head (1) is provided with a tensioning assembly (11). The tensioning assembly (11) is used to replace the high beam bulb. The tensioning assembly (11) includes a replacement frame (111). The front side of the replacement frame (111) is attached to the rear side of the condenser cover (2). The rear side of the replacement frame (111) is used to place three sets of high beam lamps. The rear side of the replacement frame (111) is attached to a positioning frame (12).
2. A high-efficiency spotlight with a stretching mechanism according to claim 1, characterized in that: The positioning frame (12) has three sets of fixing plates (123) on its inner side. The inner sides of the three sets of fixing plates (123) are fixedly connected to the rear side of the replacement frame (111) by bolts. The positioning frame (12) has a sliding groove (121) on its rear side. The sliding groove (121) has three sets of slots (122) arranged on its inner side. The three sets of slots (122) correspond to the power receiving ends of the three sets of high-intensity spotlights.
3. A high-efficiency spotlight with a stretching mechanism according to claim 2, characterized in that: A conductive rod (14) is slidably connected to the inner side of the groove (121), and the front end of the conductive rod (14) is connected to the power receiving end of one of the high-intensity spotlights.
4. A high-efficiency spotlight with a stretching mechanism according to claim 3, characterized in that: The outer side of the conductive rod (14) is slidably connected to a sleeve (141), and the inner side of the sleeve (141) is pushed by a second spring (142). A conductive post (143) is provided on the rear side of the sleeve (141), and the end of the conductive post (143) away from the sleeve (141) extends through to the outside of the lamp head (1). The rear side of the lamp head (1) is connected to a lamp tube (3) by a threaded connection.
5. A high-efficiency spotlight with a stretching mechanism according to claim 1, characterized in that: The inner side of the replacement frame (111) is coaxially provided with a shaft (13), and the front end of the shaft (13) is provided with a retaining ring (1311). The front side of the retaining ring (1311) is in contact with the rear side of the replacement frame (111). The front side of the retaining ring (1311) is arranged with three sets of positioning pins (1312). The three sets of positioning pins (1312) are inserted into the inner side of the replacement frame (111). The front side of the replacement frame (111) is connected to the front side of the shaft (13) by flange bolts. The upper side of the lamp head (1) is provided with a sliding groove (101). One side of the sliding groove (101) extends to the rear side of the lamp head (1). The inner wall of the sliding groove (101) is inlaid with sealing gaskets.
6. A high-efficiency spotlight with a stretching mechanism according to claim 5, characterized in that: A first bevel gear (131) is provided at the end of the shaft (13) away from the replacement frame (111). A sliding frame (132) is provided on the outer side of the first bevel gear (131). A drive shaft (133) is rotatably connected to the inner side of the sliding frame (132). The lower side of the drive shaft (133) is adapted to the outer side of the first bevel gear (131) through a second bevel gear (134).
7. A high-efficiency spotlight with a stretching mechanism according to claim 6, characterized in that: A knob (135) is provided on the upper side of the drive shaft (133). The upper side of the sliding frame (132) is slidably connected to the inner side of the sliding groove (101). A tension plate (136) is provided on the upper side of the sliding frame (132). The outer side of the tension plate (136) extends to the rear side of the lamp head (1). Four sets of symmetrical sliding rods (1322) are slidably connected to the outer side of the sliding frame (1322) through a sliding plate (1321). Two sets of sliding rods (1322) are spirally surrounded by a first spring (1323). The rear ends of the four sets of symmetrical sliding rods (1322) are fixedly connected to the inner side of the lamp head (1).