Light bulb holding mechanism and light bulb changing device using the same

Abstract

The utility model discloses a bulb holding mechanism and a lamp changer using the mechanism, wherein the bulb holding mechanism comprises a holding base, on which a plurality of plastic holding strips arranged in a circumference are fixedly provided, and the plastic holding strips are used to hold the bulb together; a sizing ring is commonly connected at the free end of the plastic holding strip, and a sizing connection structure convenient for disassembly is respectively provided between the plastic holding strip and the sizing ring; a holding force structure providing elastic force in the gathering direction is commonly wound around the outer side of the plastic holding strip, and a positioning structure for positioning the holding force structure is provided on the plastic holding strip. The utility model improves the versatility of using bulbs of different diameters, different shapes and different surface friction coefficients, and the grasping is reliable and convenient, and the bulb is less damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of lamp changers, in particular to a bulb holding mechanism and a lamp changer using the mechanism. Background Art

[0002] Screw-in bulbs are one of the most commonly used types of bulbs. They are installed on the corresponding lamp holder by twisting and removed from the corresponding lamp holder by twisting in the opposite direction. Since most bulbs are installed at high places, they are often manually stepped on tables, stools or ladders, etc., and the bulbs are twisted directly by hand. This method is highly dependent on auxiliary climbing structures and has obvious safety hazards. In public places where the bulbs are installed at particularly high positions, it is often necessary to add anti-fall safety measures, which will increase the tediousness of the work of removing and installing bulbs, and the safety problem is not fundamentally avoided. Based on this, more and more occasions have begun to use lamp changers to replace the work of climbing to remove and install bulbs. The structure of this lamp changer mainly includes a long pole, and a bulb clamping mechanism is installed at the end of the long pole. The long pole is manually operated at the ground position to make the clamping mechanism grab the bulb, and then the pole body is rotated or the clamping mechanism is driven to rotate by a motor, so that the high-altitude bulb can be twisted manually at the ground position to achieve the purpose of safely removing and installing the bulb.

[0003] At present, there are two main types of clamping mechanisms in the lamp changer. One is a structure of multiple elastic claws arranged in a circle, such as the utility model patent with the announcement number "CN207027392U" and the name "A screw-in light bulb disassembly tool". When in use, it applies force in the direction of the light bulb to make the light bulb push the elastic claws in the opposite direction, and the light bulb is clamped by the spring force generated by the deformation of the elastic claws. The other is a structure of multiple rigid claws arranged in a circle, and the rigid claws are equipped with springs to apply elastic forces in the gathering direction, such as the utility model patent with the announcement number "CN214560461U" and the name "A building lighting auxiliary installation device". When in use, it also relies on the light bulb to push the rigid claws in the opposite direction to achieve clamping.

[0004] The claws, springs and other structures on these lamp changers are mostly non-replaceable. When used for bulbs of different specifications, they are greatly affected by the diameter and shape of the bulb, resulting in a poor user experience. Specifically, (1) Bulbs with larger diameters require more force to push the claws back. After the claws are pushed back, the claws will generate a greater clamping force. This not only takes time and effort to grab the bulb, but the grabbing process is also prone to damage or even destruction of the bulb due to the larger spring force. On the contrary, although bulbs with smaller diameters are easier to grab, the clamping force generated is small and they are prone to slipping. This makes the lamp changer less adaptable to bulbs of different diameters and less versatile. (2) In addition to spherical bulbs, screw-in bulbs also have various shapes such as flying saucer-shaped bulbs, corn-shaped bulbs, conical bulbs, ice cream-shaped bulbs, and square prism-shaped bulbs. Bulbs of different shapes require different clamping positions. For example, the conical bulb has a thicker bottom and a thinner top, so it needs to be clamped at the bottom. For example, an ice cream-shaped bulb has a thinner bottom and a thicker top, so better contact is needed at the top to improve the clamping force. However, the shape of the claws on the existing lamp changer is mainly designed for the appearance of a spherical bulb. When it grabs bulbs of other shapes, it is difficult to clamp the bulbs at the required position, and the grabbing process is difficult. The reliability after grabbing is poor, which further reduces the versatility of the lamp changer. (3) The surface of the bulb has different materials or processes such as plastic, glass, chrome plating, paint, glossy, and frosted. When the claws grab the bulb, the friction between the bulb surface and the claws is different. When the friction is large, it will also increase the difficulty of grabbing and easily damage or even damage the bulb. On the contrary, when the friction is small, it will cause slipping. The above will further reduce the versatility of the lamp changer. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a bulb holding mechanism and a lamp changer using the mechanism, which can improve the versatility of bulbs with different diameters, different shapes and different surface friction coefficients, and can grasp bulbs reliably, conveniently and with little damage to bulbs.

[0006] In order to solve the above technical problems, the technical solution of the utility model is: a bulb holding mechanism, including a holding base, on which a plurality of circumferentially arranged plastic holding strips are fixed, and the plastic holding strips are used to hold the bulb together; the free ends of the plastic holding strips are commonly connected with sizing rings, and sizing connection structures for easy disassembly are respectively provided between the plastic holding strips and the sizing rings; the outer sides of the plastic holding strips are commonly surrounded by a holding force structure that provides elastic force in a gathering direction, and the plastic holding strips are provided with a positioning structure for positioning the holding force structure.

[0007] As a preferred technical solution, the sizing connection structure includes a connecting ring buckle buckled on the free end of the plastic gripping strip, the connecting ring buckle is sleeved on the sizing ring, and the sizing ring is provided with a disassembly fracture for detaching the connecting ring buckle.

[0008] As a preferred technical solution, a flexible anti-drop sleeve is mounted on the sizing ring at the disassembly fracture.

[0009] As a preferred technical solution, at least three sets of the positioning structures are provided on the plastic gripping strip, and the gripping force applying structure is arranged around at least one of the positioning structures.

[0010] As a preferred technical solution, each of the plastic gripping strips is respectively provided with a flexible anti-slip cover.

[0011] As a preferred technical solution, the positioning structure includes a positioning installation opening opened on the outer side of at least two of the flexible anti-slip sleeves, and the positioning installation opening is provided with a positioning fixing plate inserted between the flexible anti-slip sleeves and the plastic gripping strip, and the positioning fixing plate is fixed with a positioning baffle extending out of the positioning installation opening.

[0012] As a preferred technical solution, the gripping force applying structure includes an elastic rubber ring.

[0013] The lamp changer using the bulb holding mechanism comprises a long rod assembly, a rotary drive motor is fixedly mounted at the working end of the long rod assembly, and the holding base is fixedly connected to the power end of the rotary drive motor.

[0014] As a preferred technical solution, the long rod assembly includes an extension rod, and at least one angle rod is sequentially installed on the upper end of the extension rod, and the uppermost angle rod constitutes the working end of the long rod assembly; connecting sections for convenient angle conversion are respectively provided between the angle rod and the extension rod, and between adjacent angle rods.

[0015] Due to the adoption of the above technical solution, the utility model uses the plastic gripping strip to grip the light bulb. In the process of the light bulb reversely stretching the plastic gripping strip, the plastic gripping strip can adapt to the change of the light bulb shape based on its own good plasticity and the elastic force of the outer gripping force structure, and fit the shape of the light bulb to form a larger area of ​​contact. The light bulb finally forms a covering gripping state between the plastic gripping strips, and the gripping is reliable. The sizing ring serves as a rigid support structure at the free end of the plastic gripping strip, which plays a role in shaping the initial opening degree of the plastic gripping strip, making it convenient for the light bulb to quickly form a grip at the plastic gripping strip after passing through the sizing ring, which is convenient for gripping and helps reduce the pushing of the light bulb and reduces the damage to the light bulb. The sizing ring and the plastic gripping strip are disassembled, which makes it convenient to replace sizing rings with different inner diameters for bulbs with different outer diameters and shapes, and to replace gripping force structures that can generate different gripping forces according to different surface friction coefficients of bulbs. Therefore, the utility model relies on a set of the plastic gripping strips to adapt to the clamping of more bulbs with different diameters, shapes and surface friction coefficients, thereby improving versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following drawings are only intended to illustrate and explain the present invention, and do not limit the scope of the present invention.

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the light bulb holding mechanism of the embodiment of the utility model;

[0018] Figure 2 It is a schematic cross-sectional view of the light bulb holding mechanism of the embodiment of the utility model;

[0019] Figure 3 yes Figure 2 An enlarged structural diagram of one of the positioning structures on the rightmost plastic gripping strip;

[0020] Figure 4 This is a schematic diagram of the use of the embodiment of the utility model when holding a light bulb with a small outer diameter;

[0021] Figure 5 This is a schematic diagram of the use of the embodiment of the utility model when holding a light bulb with a large outer diameter;

[0022] Figure 6 This is a schematic diagram of the use of the embodiment of the utility model when holding a conical tip bubble;

[0023] Figure 7 This is a schematic diagram of the use of an embodiment of the utility model when holding an ice cream-shaped light bulb;

[0024] Figure 8 This is a schematic diagram of the use of the embodiment of the utility model when holding a corn-shaped light bulb;

[0025] Fig. 9 This is a schematic diagram of the three-dimensional structure of the lamp changer of the embodiment of the utility model;

[0026] Fig.10 yes Fig. 9 An enlarged structural diagram of the working end of the mid-long rod assembly;

[0027] Fig.11 yes Fig. 9 An enlarged structural diagram of a connection section between adjacent angle rods;

[0028] Fig.12 yes Fig.11 A schematic cross-sectional structure diagram of;

[0029] Fig.13 This is a schematic diagram of the use of the embodiment of the utility model when disassembling and assembling a light bulb installed horizontally;

[0030] Fig.14 The utility model is a schematic diagram of the use of the embodiment of the utility model when disassembling and assembling the inverted light bulb.

[0031] In the figure: 1-bulb holding mechanism; 2-holding base; 3-plastic holding strip; 31-flexible anti-slip sleeve; 4-sizing ring; 5-sizing connection structure; 51-connecting ring buckle; 52-disassembly fracture; 53-flexible anti-slip sleeve; 6-holding force structure; 7-positioning structure; 71-positioning installation opening; 72-positioning fixing plate; 73-positioning baffle; 8-long rod assembly; 81-extension rod; 82-angle rod; 83-connecting section; 831-connecting head; 832-connecting fastening bolt; 833-angle fixing tooth; 84-rotation drive motor; 9-bulb. DETAILED DESCRIPTION

[0032] The present invention is further described below in conjunction with the accompanying drawings and examples. In the following detailed description, only certain exemplary embodiments of the present invention are described by way of illustration. Needless to say, those skilled in the art will recognize that the described embodiments may be modified in various ways without departing from the spirit and scope of the present invention. Therefore, the drawings and descriptions are illustrative in nature and are not intended to limit the scope of protection of the claims.

[0033] like Figures 1 to 8 As shown together, the bulb holding mechanism 1 includes a holding base 2, on which a plurality of plastic holding strips 3 arranged in a circumference are fixedly provided, and the plastic holding strips 3 are used to hold the bulb 9 together. The plastic holding strips 3 can be made of one or a combination of materials such as low-carbon steel, copper, aluminum, plastic, etc. with good plastic deformation ability, which is not limited here. The plastic holding strips 3 can be fixed on the holding base 2 by screws, pressing sheets, colloids, or welding, which is not limited here.

[0034] The free ends of the plastic gripping strips 3 are connected with a sizing ring 4. The sizing ring 4 in this embodiment has two functions: one is to form a floating rigid restriction on the free ends of the plastic gripping strips 3, so that the plastic gripping strips 3 can maintain a regular circumferential distribution state under this restriction; the other is to assist in shaping the initial opening degree of the plastic gripping strips 3, so that the light bulb 9 passing through the sizing ring 4 can be quickly gripped by the plastic gripping strip 3 with less effort. Of course, the inner diameter of the sizing ring 4 should be larger than the outer diameter of the light bulb 9.

[0035] A sizing connection structure 5 for easy disassembly is provided between the plastic gripping strip 3 and the sizing ring 4, so as to facilitate the replacement of sizing rings 4 with different inner diameters for bulbs 9 with different outer diameters and shapes, thereby improving the versatility of this embodiment. The sizing connection structure 5 of this embodiment includes a connecting ring buckle 51 buckled on the free end of the plastic gripping strip 3, the connecting ring buckle 51 is sleeved on the sizing ring 4, and the sizing ring 4 is provided with a disassembly fracture 52 for the connecting ring buckle 51 to be detached. The connecting ring buckle 51 is sleeved on the sizing ring 4 through the disassembly fracture 52 to form a connection, and is detached from the sizing ring 4 through the disassembly fracture 52 to form a disassembly.

[0036] Preferably, the sizing ring 4 is made of a material such as plastic or carbon steel with a certain elasticity, so that the disassembly fracture 52 can be dislocated in the annular direction, thereby facilitating the connection and disassembly of the connecting ring buckle 51. Preferably, a flexible anti-detachment sleeve 53 is provided on the sizing ring 4 at the disassembly fracture 52, so that after the connecting ring buckle 51 is connected, the disassembly fracture 52 is blocked to prevent the connecting ring buckle 51 from being separated from the sizing ring 4 during normal use; of course, when disassembly is required, the flexible anti-detachment sleeve 53 is completely pulled onto the sizing ring 4 on one side of the disassembly fracture 52, so that the disassembly fracture 52 can be dislocated in the annular direction, thereby facilitating the disassembly and reconnection operations. The flexible anti-detachment sleeve 53 can be implemented by a rubber sleeve, a silicone sleeve or a cloth sleeve, etc., which is not limited here.

[0037] The outer side of the plastic gripping strips 3 is commonly wound with a gripping force structure 6 that provides an elastic force in the gathering direction. After the light bulb 9 enters between the plastic gripping strips 3, the plastic gripping strips 3 are stretched open, and the gripping force structure 6 is opened to generate an elastic force to hold the light bulb 9. The gripping force structure 6 described in this embodiment includes an elastic rubber ring, and of course, it can also be implemented by an annular spring, etc., which should be within the protection range of the gripping force structure 6. Preferably, each of the plastic gripping strips 3 is respectively provided with a flexible anti-slip cover 31 to increase the friction between the plastic gripping strips 3 and the light bulb 9 to ensure reliable grip. The flexible anti-slip cover 31 can be implemented by silicone, rubber, etc., and is not limited here.

[0038] The plastic gripping strip 3 is provided with a positioning structure 7 for positioning the gripping force-applying structure 6, so as to fix the gripping force-applying structure 6 and ensure that it can provide reliable elastic force at the required position. The positioning structure 7 in this embodiment includes a positioning installation opening 71 opened at the outer side of at least two of the flexible anti-slip sleeves 31, and the positioning installation opening 71 is provided with a positioning fixing sheet 72 inserted between the flexible anti-slip sleeve 31 and the plastic gripping strip 3, and the positioning fixing sheet 72 is fixed with a positioning baffle 73 extending out of the positioning installation opening 71.

[0039] The positioning structure 7 is fixed by the insertion of the positioning fixing sheet 72, and the position of the gripping force-applying structure 6 is limited by the positioning baffle 73. As the plastic gripping strips 3 gradually gather along the direction from the sizing ring 4 to the gripping base 2, the positioning baffle 73 can achieve its positioning function as long as it blocks the gripping force-applying structure 6 close to the gripping base 2. In this embodiment, six plastic gripping strips 3 are shown, so as long as the positioning structure 7 is set at least relative to two of the plastic gripping strips 3, the positioning function can be achieved; this embodiment is illustrated by setting the positioning structure 7 on three non-adjacent plastic gripping strips 3.

[0040] Based on the present embodiment, the sizing rings 4 with different inner diameters are replaced for the bulbs 9 with different outer diameters and shapes. While replacing the sizing rings 4 with different inner diameters, the present embodiment also replaces the holding force structure 6 that can generate different elastic forces according to the outer diameter, shape and surface friction coefficient of the bulb 9, so that when the bulb 9 reversely opens the plastic holding strip 3, the elastic force of the holding force structure 6 can reduce the friction between the bulb 9 and the plastic holding strip 3 during the grasping process while ensuring the grasping force, thereby avoiding that a large elastic force and / or a large friction force will cause a large obstacle to the grasping operation of the bulb 9, and also avoiding damage to the bulb 9 during the grasping process.

[0041] Preferably, the plastic gripping strip 3 is provided with at least three sets of the positioning structures 7, and at least one of the positioning structures 7 is surrounded by the gripping force-applying structure 6. Figures 4 to 8 As shown, in this embodiment, the gripping force-applying structure 6 can be more flexibly arranged around the corresponding positioning structure 7 according to the position on which the gripping is required, which can further improve the versatility of this embodiment while ensuring reliable gripping.

[0042] like Figures 9 to 14As shown together, the lamp changer using the bulb holding mechanism 1 includes a long rod assembly 8, which provides the height of the bulb holding mechanism 1, and conventionally includes a lower operating end and an upper working end; a rotation drive motor 84 is fixedly installed at the working end of the long rod assembly 8, and the holding base 2 is fixedly connected to the power end of the rotation drive motor 84, so that the rotation drive motor 84 drives the bulb holding mechanism 1 to rotate, thereby realizing the twisting operation of the held bulb 9. Of course, the plastic holding strip 3 is arranged in a circle along the outer circumference of the power end of the rotation drive motor 84, so as to rotate in the same direction as the rotation drive motor 84.

[0043] Conventionally, the rotary drive motor 84 is electrically connected to a power source, which may be a commercial power source or a battery, which is not limited here and is not shown in the figure. The rotary drive motor 84 may be started and stopped by a circuit switch or a remote control switch, which is not limited here.

[0044] Preferably, the long rod assembly 8 comprises an extension rod 81, at least one angle rod 82 is sequentially mounted on the upper end of the extension rod 81, and the uppermost angle rod 82 constitutes the working end of the long rod assembly 8; a connection section 83 for convenient angle conversion is respectively arranged between the angle rod 82 and the extension rod 81, and between adjacent angle rods 82. By providing multiple angle rods 82, the bulb holding mechanism 1 can achieve multi-angle adjustment, thereby facilitating the disassembly and assembly of various horizontally installed or inverted bulbs 9.

[0045] Among them, this embodiment shows that two angle rods 82 are sequentially installed on the extension rod 81. The connection joint 83 can be realized by a hinge joint or a ball joint, etc., which is not limited here. This embodiment is only illustrated by a hinge joint. Specifically, the connection joint 83 includes two connecting heads 831, and a connecting and fastening bolt 832 is installed between the two connecting heads 831. The near side surfaces of the two connecting heads 831 are respectively provided with mutually meshing angle fixing teeth 833. The two connecting heads 831 are respectively fixedly arranged on the adjacent angle rods 82 and the extension rod 81, or respectively fixedly arranged on the two adjacent angle rods 82. After loosening the connecting and fastening bolts 832, the angle rod 82 can be rotated and adjusted around the connecting and fastening bolts 832. After reaching the desired angle, the connecting and fastening bolts 832 are re-tightened to achieve angle fixing; the setting of the angle fixing teeth 833 can improve the stability after the angle is fixed, and ensure the reliable transmission of the force applied from the extension rod 81 to the bulb holding mechanism 1.

[0046] When this embodiment is used, Figures 4 to 8As shown, according to the outer diameter and shape of the bulb 9, the corresponding sizing ring 4 is replaced, and at the same time, referring to the size of the surface friction coefficient of the bulb 9, one or more holding force-applying structures 6 are arranged around the required position. The bulb holding mechanism 1 is adjusted to the required angle by using the connecting section 83, as shown in FIG. Fig. 9 As shown, for a vertically mounted bulb 9, the bulb holding mechanism 1 can be kept extending in the same direction as the extension rod 81. Fig.11 As shown, for a light bulb 9 installed horizontally, the light bulb holding mechanism 1 can be adjusted to an angle of 90° or close to 90° with the extending direction of the extension rod 81. Fig.12 As shown, for the inverted light bulb 9, the light bulb holding mechanism 1 can be adjusted to an angle of 180° or close to 180° with the extension direction of the extension rod 81. By manually holding the extension rod 81, the light bulb 9 is forced to pass through the sizing ring 4. Under the continued manual force, the light bulb 9 opens the plastic holding strip 3 and is finally clamped under the elastic force of the holding force structure 6. The rotating drive motor 84 is started, and the light bulb holding mechanism 1 twists the light bulb 9 until it is removed. During installation, the light bulb 9 is first clamped by the light bulb holding mechanism 1, and then the rotating drive motor 84 is rotated in the opposite direction at the lamp holder position to install the light bulb 9. In actual application, a camera can be added at the working end of the long rod assembly 8, and an imaging instrument can be correspondingly set at the operating end or other positions of the long rod assembly 8 to facilitate the observation of the disassembly and assembly status of the light bulb holding mechanism 1 and facilitate manual operation.

[0047] In this embodiment, the plastic gripping strip 3 is used to grip the light bulb 9. When the light bulb 9 pushes the plastic gripping strip 3 in the opposite direction, the plastic gripping strip 3 can adapt to the shape change of the light bulb 9 based on its own good plasticity and the elastic force of the outer gripping force structure 6, and fit the shape of the light bulb 9 to form a larger contact area. The light bulb 9 finally forms a wrapped gripping state between the plastic gripping strips 3, and the gripping is reliable. The sizing ring 4 serves as a rigid support structure at the free end of the plastic gripping strip 3, and plays a role in shaping the initial opening degree of the plastic gripping strip 3, so that the light bulb 9 can be quickly gripped at the plastic gripping strip 3 after passing through the sizing ring 4, which is convenient for gripping and helps reduce the pushing of the light bulb 9 and reduces the damage to the light bulb 9. The sizing ring 4 and the plastic gripping strip 3 are detachable, so that it is convenient to replace the sizing ring 4 with different inner diameters according to the bulbs 9 with different outer diameters and shapes, and it is convenient to replace the gripping force-applying structure 6 that can generate different gripping forces according to the conditions of the surface friction system of different bulbs 9. In this embodiment, through the provision of multiple positioning structures 7, it is convenient to arrange different numbers of gripping force-applying structures 6 according to the different gripping positions required for different bulbs 9. Ultimately, this embodiment can adapt to the clamping of bulbs 9 with more different diameters, shapes and surface friction coefficients, thereby improving versatility.

[0048] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A bulb holding mechanism, comprising a holding base, characterized in that: A plurality of plastic holding strips arranged in a circle are fixedly provided on the holding base, and the plastic holding strips are used to hold the light bulb together; a sizing ring is commonly connected to the free ends of the plastic holding strips, and a sizing connection structure for easy disassembly is respectively provided between the plastic holding strips and the sizing ring; a holding force structure for providing elastic force in the gathering direction is commonly wound around the outer side of the plastic holding strip, and a positioning structure for positioning the holding force structure is provided on the plastic holding strip.

2. The light bulb holding mechanism according to claim 1, characterized in that: The sizing connection structure comprises a connecting ring buckle buckled on the free end of the plastic gripping strip, the connecting ring buckle is sleeved on the sizing ring, and the sizing ring is provided with a disassembly fracture for detaching the connecting ring buckle.

3. The light bulb holding mechanism according to claim 2, characterized in that: A flexible anti-drop sleeve is sleeved on the sizing ring at the disassembly fracture.

4. The light bulb holding mechanism according to claim 1, characterized in that: At least three sets of the positioning structures are arranged on the plastic gripping strip, and the gripping force applying structure is arranged around at least one of the positioning structures.

5. The light bulb holding mechanism according to claim 1, characterized in that: Each of the plastic gripping strips is respectively covered with a flexible anti-slip cover.

6. The light bulb holding mechanism according to claim 5, characterized in that: The positioning structure includes a positioning installation opening opened on the outer side of at least two of the flexible anti-slip sleeves, and the positioning installation opening is provided with a positioning fixing plate inserted between the flexible anti-slip sleeves and the plastic gripping strip, and the positioning fixing plate is fixed with a positioning blocking plate extending out of the positioning installation opening.

7. The light bulb holding mechanism according to claim 1, characterized in that: The gripping force applying structure comprises an elastic rubber ring.

8. A lamp changer using the bulb holding mechanism according to any one of claims 1 to 7, comprising a long rod assembly, characterized in that: A rotary drive motor is fixedly installed at the working end of the long rod assembly, and the holding base is fixedly connected to the power end of the rotary drive motor.

9. The lamp changer according to claim 8, characterized in that: The long rod assembly includes an extension rod, at least one angle rod is sequentially installed on the upper end of the extension rod, and the uppermost angle rod constitutes the working end of the long rod assembly; connecting sections for convenient angle conversion are respectively provided between the angle rod and the extension rod, and between adjacent angle rods.

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