CN112318430A

CN112318430A - Elbow adjusting device and lamp changing pole

Info

Publication number: CN112318430A
Application number: CN202011062862.9A
Authority: CN
Inventors: 赖运河; 林志杰; 蔡达殷; 徐浩; 任东杰
Original assignee: Shenzhen Power Supply Bureau Co Ltd
Current assignee: Shenzhen Power Supply Bureau Co Ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-02-05

Abstract

The invention relates to an elbow adjusting device and a lamp changing pole, wherein the elbow adjusting device comprises a supporting piece, a fixed seat and a clamping piece, wherein the clamping piece is connected with the fixed seat and defines a clamping space with an opening at one end together with the fixed seat; the support piece is arranged between the fixed seat and the rod body in a supporting mode along the axial direction of the rod body of the lamp changing rod; the support member deforms when acted force is applied, and the angle between the plane where the opening of the clamping space is located and the axial direction of the rod body can be changed. When acting force is applied to the supporting piece, the plane where the opening of the clamping space is located does not keep a fixed angle with the axial direction of the rod body any more, but the angle is variable, and therefore the high-altitude energy-saving lamp which is not vertically installed is convenient to replace.

Description

Elbow adjusting device and lamp changing pole

Technical Field

The invention relates to the technical field of maintenance equipment, in particular to an elbow adjusting device and a lamp changing pole.

Background

Under the vigorous popularization of China, the energy-saving lamp gradually replaces an incandescent lamp and becomes a main lighting tool in daily life of residents in China. In the power industry, energy-saving lamps are also widely applied to offices, equipment rooms and other power production places, for example, a main control room of a transformer substation is provided with hundreds of sets of energy-saving lamps.

The energy-saving lamp belongs to consumable items and necessities, once the energy-saving lamp is damaged, the energy-saving lamp is required to be replaced in time, most of the energy-saving lamps in the traditional transformer substation are replaced by hands, generally, operators carry ladders to replace the energy-saving lamp, but at the moment, if the equipment is too close to the wall surface, the operation and the action are inconvenient, and the risk of falling and insufficient insulation safety distance also exists; moreover, the dome lamps in the factory halls are installed relatively high, and the work of ascending a height is often needed to replace damaged lamps, so that the danger is high.

In addition, due to the special arrangement of the power transformation places, in order to better illuminate the working environment, the illuminating lamps of a plurality of equipment rooms are not vertically arranged and need to be arranged at a certain angle to be installed in a non-vertical mode, for example, a high-voltage chamber of a transformer substation, a GIS (gas insulated substation) is installed at an angle of 45 degrees obliquely downwards, and the operation difficulty is high during replacement.

Disclosure of Invention

Therefore, the elbow adjusting device and the lamp pole convenient for replacing the non-vertically installed high-altitude energy-saving lamp are needed to solve the problem that the replacement operation difficulty of the non-vertically installed high-altitude energy-saving lamp is high.

An elbow adjustment device for changing light poles, comprising:

a fixed seat;

the clamping piece is connected with the fixed seat and defines a clamping space with an opening at one end together with the fixed seat;

the support piece is arranged between the fixed seat and the rod body in a supporting mode along the axial direction of the rod body of the lamp changing rod;

the support member deforms when acting force is applied to change the angle between the plane of the opening and the axial direction of the rod body.

In one embodiment, the support member comprises a first support member and a second support member, and the first support member is sleeved in the second support member;

wherein the elastic modulus of the second support member is greater than the elastic modulus of the first support member. Thus, the second support part can play a powerful supporting role for the first support part and deform along with the first support part.

In one embodiment, the first supporting piece is a spring, the second supporting piece is a rubber piece, and the angle can be freely adjusted by utilizing the tension of the rubber and the powerful deformation of the spring, so that the replacement of the unconventional and inclined energy-saving lamp is completed.

In one embodiment, the inner surface of the second support member is attached to the outer surface of the first support member.

In one embodiment, the support member can form a bending angle in a range of 90-180 degrees, so that the energy-saving lamp can be conveniently installed at different angles and replaced with an energy-saving lamp with insufficient operation space.

In one embodiment, the elbow adjustment device further comprises a first connecting member comprising at least two first cylinders connected to each other;

one end of the first connecting piece is connected with the fixed seat through one of the first cylinders, and the other end of the first connecting piece is connected with the supporting piece through the other first cylinder. The first connecting piece can support the fixing base while connecting the fixing base and the supporting piece.

In one embodiment, the elbow adjustment device further comprises a second connector comprising at least two interconnected second cylinders;

one end of the second connecting piece is connected with the support piece through one of the second cylinders, the other end of the second connecting piece is connected with the rod body through the other one of the second cylinders, and the second connecting piece can support the support piece when connecting the support piece with the rod body of the lamp changing rod.

In one embodiment, the clamping piece comprises at least two fixing columns, every two adjacent fixing columns are arranged at intervals, and all the fixing columns and the fixing seats jointly define the clamping space.

In one embodiment, the fixing seat is provided with mounting holes, each fixing column is mounted in each mounting hole, and the position of at least one fixing column in each mounting hole is adjustable so as to change the volume of the clamping space.

A light pole, comprising:

the elbow adjusting device and the rod body are characterized in that the rod body is connected with the elbow adjusting device through the supporting piece.

According to the elbow adjusting device and the lamp changing pole, the supporting piece deforms when acting force is applied, and the angle between the plane where the opening of the clamping space is located and the axial direction of the pole body can be changed. When acting force is applied to the supporting piece, the plane where the opening of the clamping space is located does not keep a fixed angle with the axial direction of the rod body any more (for example, when the lamp changing pole in the prior art is vertically arranged, the plane where the opening is located is horizontal, and only the vertically installed lamp can be replaced at the moment), but the angle is variable, so that the replacement of the non-vertically installed high-altitude energy-saving lamp is facilitated.

Drawings

Figure 1 is a front view of an elbow adjustment device provided in accordance with an embodiment of the present invention;

figure 2 is an isometric view of the elbow adjustment device shown in figure 1;

FIG. 3 is a schematic view of the elbow adjustment device shown in FIG. 1 with the clamp engaged with the energy saving lamp;

figure 4 is an isometric view of the anchor block of the elbow adjustment device shown in figure 1;

fig. 5 is a front view of a light changing pole according to an embodiment of the present invention.

Reference numerals: 100. replacing the lamp post; 10. an elbow adjusting device; 110. a support member; 111. a first support member; 112. a second support member; 120. a clamping member; 121. fixing a column; 1211. a notch; 130. a fixed seat; 131. mounting holes; 140. a first connecting member; 141. a first cylinder; 1411. a first connection end; 150. a second connecting member; 151. a second cylinder; 1511. a second connection end; 160. a clamping space; 161. an opening; 170. a fixing member; 20. a rod body; 200. an energy saving lamp; 300. a U-shaped lamp tube; 301. a clamping groove.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1 to 4, an elbow adjusting device 10 according to an embodiment of the invention includes a clamping member 120, a fixing base 130 and a supporting member 110, wherein the clamping member 120 is connected to the fixing base 130 and defines a clamping space 160 with an opening 161 at one end with the fixing base 130. The supporting member 110 is disposed between the fixing base 130 and the rod 20 (described below) along the axial direction of the light changing rod. The support member 110 is deformed when applied with a force to change an angle between a plane in which the opening 161 of the clamping space 160 is located and an axial direction of the rod body 20. When a force is applied to the support 110, the plane of the opening 161 of the clamping space 160 no longer maintains a fixed angle with the axial direction of the rod body 20 (as the plane of the opening 161 of the prior art light exchange rod 100 is horizontal when it is vertically arranged, only the vertically-installed energy-saving lamp 200 can be replaced), but the angle is variable, so that the replacement of the non-vertically-installed high altitude energy-saving lamp 200 is facilitated.

It should be noted here that the above-mentioned acting force can include several ways: the user applies a force to the stem 20 of the light pole 100, a force transmitted by the stem 20 to the support 110, or a force applied directly to the support 110 by the user.

The elbow adjustment device 10 of the present embodiment further includes a first connecting member 140 and a second connecting member 150, wherein the first connecting member 140 is disposed between the fixing base 130 and the supporting member 110, and the second connecting member 150 is disposed between the supporting member 110 and the rod 20. The first connecting member 40, the second supporting member 150, the clamping member 120, the fixing base 130 and the supporting member 110 are connected together to form the elbow adjusting device 10.

Specifically, the clamping member 120 includes at least two fixing posts 121, each two adjacent fixing posts 121 are spaced apart from each other, and all the fixing posts 121 and the fixing base 130 define a clamping space 160.

In an embodiment, the clamping member 120 may include four fixing posts 121, wherein every two adjacent fixing posts 121 are spaced apart from each other around the edge of the fixing base 130 and have the same distance from the center of the fixing base 130, and together with the fixing base 130, define a clamping space 160 having a rectangular parallelepiped shape with the fixing posts 121 as the bottom, the upper end opening 161, and the edge. In other embodiments, the clamping space 160 may also be spherical or ellipsoidal in shape.

The fixing column 121 is fixed to the fixing base 130 by a fixing member 170, and the fixing member 170 may be a bolt or a nut. For example, a threaded hole is formed in the lower end of the fixing post 121, and a bolt is screwed into the threaded hole of the fixing post 121 to connect the fixing post 121 and the fixing base 130 together. For example, an external thread is turned on the outer side of the lower portion of the fixing post 121, and a nut is screwed into the external thread on the bottom of the fixing post 121 at the bottom of the fixing seat 130 to connect the fixing post 121 and the fixing seat 130 together. The diameter of the fixing post 121 is set according to the size of the clamping groove 301 of the energy saving lamp 200 to be replaced, for example, for the energy saving lamp 200 with the U-shaped lamp tube 300 structure, the fixing post can be clamped in the clamping groove 301 formed between every two U-shaped lamp tubes 300 of the energy saving lamp 200 to fix the energy saving lamp 200. A gap 1211 is formed between every two adjacent fixing posts 121, and the U-shaped lamp tube 300 of the energy saving lamp 200 can extend from the gap.

Further, the length of the fixing post 121 may be set to 20cm to 30cm, the diameter of the fixing post 121 may be 0.5cm to 1.0cm, and the fixing post 121 may be fixed for a U-shaped energy saving lamp usually smaller than 20cm, otherwise, the fixing post 121 of this embodiment may not be in a regular shape, for example, for a conventional incandescent lamp, the fixing post 121 may be set to be a curved upright post with a curvature, the bulb of the incandescent lamp may be directly wrapped by the fixing post 121, and a portion of the incandescent lamp may protrude from the notch 1211.

In one embodiment, as shown in fig. 1 and 4, the fixing base 130 is a circular disc, and the thickness thereof is determined by the fixing manner of the clamping member 120, and is not too thick as long as the fixing base can be connected with the clamping member 120 and can sufficiently support the clamping member 120. The upper surface of which is connected to the clamping member 120 and the lower surface facing away from the clamping member 120 is connected to the first connecting member 140.

The fixing base 130 is further provided with at least two mounting holes 131, each fixing post 121 is mounted in each mounting hole 131, and the fixing posts 121 can slide in the mounting holes 131 according to the size of the energy-saving lamp 200 to be replaced, so as to form clamping spaces 160 with different volumes. In an embodiment, the mounting hole 131 may be four elongated holes, each fixing post 121 passes through the elongated hole respectively and is connected to the fixing base 130 through the fixing member 170, wherein a position of at least one fixing post 121 in the elongated hole is adjustable, and when the plurality of fixing posts 121 are located at different positions of the plurality of elongated holes, a plurality of clamping spaces with different volumes are correspondingly formed.

Further, as shown in fig. 2, fig. 3 and fig. 4, the energy saving lamp 200 can enter the clamping space 160 through the upper end opening 161, when the energy saving lamp 200 is accommodated in the clamping space 160, each fixing post 121 is aligned to the clamping groove 301 between two U-shaped lamp tubes 300, and the fixing base 130 is slowly close to the energy saving lamp 200 until the fixing base 130 contacts the top of the U-shaped lamp tube 300 of the energy saving lamp 200, so that the fixing of the energy saving lamp 200 is completed, and the subsequent screwing is facilitated. After the fixing is completed, the energy saving lamp 200 can be directly held by the fixing posts 121 and the portion of the U-shaped lamp 300 can protrude from the notch 1211.

It is to be noted that, in the present embodiment, the number, distance, and size of the fixing posts 121 are all designed specifically according to the structure of the energy saving lamp 200, but the number, distance, and size of the fixing posts 121 are not limited thereto, and as long as the number, distance, and size are designed specifically according to the shape of the lamp to be replaced, the lamp to be replaced can be fixed, so as to facilitate the subsequent replacement, and such structures are all within the protection scope of the present invention.

In one embodiment, the first connecting member 140 includes at least two first cylinders 141 connected to each other, and the at least two first cylinders 141 connected to each other may have different diameters, and may be respectively arranged to connect and support the supporting member 110 and the fixing base 130 according to different cross-sectional areas. Specifically, the first connecting member 140 includes three first cylinders 141 coaxially disposed and having different diameters, the first cylinder 141 located above the first connecting member 140 forms a first connecting end 1411 thereof, the first connecting member 140 is connected to the fixing base 130 through the first connecting end 1411 to support the fixing base 130 and the clamping member 120, the first cylinder 141 located below is connected to the supporting member 110, and the middle first cylinder 141 connects the upper and lower first cylinders 141 and supports the upper and lower first cylinders 141. Here, the first cylinder 141 may not be a cylinder, and may be a rectangle, a square, or the like, but this embodiment is only one of the solutions.

As shown in fig. 1 and fig. 2, in an embodiment, the supporting member 110 includes a first supporting member 111 and a second supporting member 112, the second supporting member 112 is sleeved outside the first supporting member 111, and an elastic modulus of the second supporting member 112 is greater than an elastic modulus of the first supporting member 111, and the second supporting member 112 can support the first supporting member 111 while deforming with the first supporting member 111. Specifically, the second support member 112 is wrapped around the first support member 111.

Because the first supporting member 111 has elasticity and natural elasticity (deformation is generated when external force is applied, and after the external force is removed, the deformation disappears, and the material recovers to the original shape, which is called elasticity), the elbow adjusting device 10 is easy to be upright when the external force disappears, so that the bending angle α of the elbow adjusting device 10 is unstable. Therefore, here, wrapping the first support member 111 with the second support member 112 having a larger elastic modulus than the first support member 111 greatly slows down the elastic recovery of the first support member 111, thereby achieving stable and effective transformation of the bending angle α. In this embodiment, the outer surface of the first supporting member 111 is attached to the inner surface of the second supporting member 112; the first supporting member 111 is connected to the first connecting member 140 and the second connecting member 150. In the initial state, the supporting member 110 is perpendicular to the fixing base 130 along the axial direction of the rod 20, and no change is needed if the energy saving lamp 200 installed vertically needs to be replaced. If the energy saving lamp 200 installed at an angle of 45 ° downward needs to be replaced, the support member 110 needs to be bent at an angle of 135 ° upward for use. When the energy-saving lamp is used, after the rotating acting force from the rod body 20 is received, the supporting part 110 drives the clamping part 120 to rotate so as to drive the energy-saving lamp 200 to rotate, in the process, the first supporting part 111 is easily deformed under the stress to generate the change of the bending angle alpha, the second supporting part 112 is fixed on the first supporting part 111 in a fitting manner and also changes along with the change of the combination degree of the energy-saving lamp 200 and the lamp holder, the formed bending angle alpha can be changed from 90 degrees to 180 degrees in a three-dimensional space, and the bending angle alpha can also be changed adaptively along with the continuous change of the combination degree of the energy-saving lamp 200 and the lamp holder, so that the energy-saving lamp 200 can be conveniently replaced in different.

Specifically, in one embodiment, the first supporting member 111 is an aluminum alloy strong spring, and the cross-sectional diameter may be 3cm, but is not limited to this aluminum alloy material, and the second supporting member 112 is a soft rubber member, and the elastic modulus of the soft rubber member is greater than that of the aluminum alloy strong spring and has tension. The elasticity of the powerful spring of aluminum alloy is greater than the elasticity of rubber, and the soft rubber spare can take place to deform and support the powerful spring of aluminum alloy along with the spring, and the supporting role of soft rubber spare prevents to produce on the one hand and kick-backs after the powerful spring of aluminum alloy warp, on the other hand prevents that the powerful spring of aluminum alloy if receiving the perpendicular decurrent effort of fixing base 130 when with spring pressure deformation.

Further, in one embodiment, the second supporting member 112 is formed in a shape with two open ends and four closed sides, and preferably, the shape may be a cylinder, but is not limited to this shape, after the wrapping, a space is formed in the middle for the first supporting member 111 to be placed and deformed, and the openings at the two ends of the second supporting member 112 may be flush with the two ends of the first supporting member 111.

Specifically, the second connector 150 includes at least two second cylinders 151 connected to each other, and the at least two first cylinders 141 connected to each other may have different diameters, and may be respectively arranged to have a connecting and supporting function with respect to different cross-sectional areas of the rod body 20 and the supporting member 110. Specifically, the second connector 150 includes three first cylinders 151 coaxially disposed and having different diameters, the second cylinder 151 located above the second connector 150 forms a second connection end 1511, the second connector 150 is connected to the support through the second connection end to support the support 110, and is connected to the rod 20 of the light exchange pole 100 through the second cylinder 151 located below, the second cylinder 151 located in the middle is located between the upper and lower second cylinders 151 to connect the two second cylinders 151 and support the two second cylinders 151, here, the second cylinder 151 may not be a cylinder, and may be a rectangle or a square, and the like, which is only one of the solutions in this embodiment.

The second connecting member 150 plays a role of strong support in the process of transmitting the acting force of the rod 20 to the support member 110, the second support member 110 can strongly support the elbow adjusting device 10 and transmit the force of the user acting on the rod 20 to the elbow adjusting device 10, so that the support member 110 deforms according to the direction of the applied force, the first connecting member 140 can strongly support the fixing seat 130 and the clamping member 120 and transmit the deformation effect of the support member 110 to the energy-saving lamp 200 to immediately rotate, and the effective action of the elbow adjusting device 10 is achieved through the action of the two connecting members.

The elbow adjusting device 10 provided by the embodiment clamps the energy-saving lamp 200 through the clamping member 120 fixed on the fixing seat 130; when the energy-saving lamp 200 needs to be unscrewed, the supporting member 110 drives the clamping member 120 to rotate counterclockwise through the first connecting member 140, the energy-saving lamp 200 is driven to rotate while the clamping member 120 rotates, and the bending angle α of the supporting member 110 is continuously changed and freely adjusted during the rotation process until the energy-saving lamp 200 can be taken down from the clamping space 160 formed by the clamping member 120 and the fixing seat 130 together after being completely unscrewed. On the contrary, when the energy-saving lamp 200 is installed, the energy-saving lamp 200 can be clamped in the clamping space 160 formed by the clamping member 120 and the fixing seat 130 in advance; the lamp holder corresponds to the lamp holder by adjusting the initial bending angle of the support member 110, the support member 110 drives the clamping member 120 to rotate clockwise and counterclockwise through the first connecting member 140, the energy-saving lamp 200 is driven to rotate and rotate clockwise towards the interior of the lamp holder, the clamping member 120 is pulled out backwards in the direction parallel to the energy-saving lamp 200 after the energy-saving lamp 200 completely enters, and the elbow adjusting device 10 is taken down. The elbow adjusting device 10 can freely adjust the angle by utilizing the elastic force and the supporting force of the second supporting member 110 and the elastic force of the first supporting member 110 to generate powerful deformation, even if the energy-saving lamp 200 is in an inclined position or a position close to a corner, and the operation is very simple and convenient.

Referring to fig. 1 to 4, the present invention further provides a light changing pole 100, which includes the above-mentioned elbow adjusting device 10 and a pole 20, wherein the pole 20 is connected to the elbow adjusting device 10 through a support 130.

The material, length and shape of the rod 20 are not limited, and may be set according to the requirements of the place to be replaced. Specifically, the rod 20 is connected to the supporting member 110 through the second connecting member 150, so as to support the entire elbow adjusting device 10, and the connection between the rod 20 and the elbow adjusting device 10 may be a loose joint or a fixed welding. Preferably, a loose joint is used, so that the same elbow adjusting device 10 can be adapted to different rod bodies 20 with different lengths and different specifications to form different lamp changing poles 100 for changing the energy saving lamps 200 in different places. The rod body 20 may be hollow and have an internal thread turned at an upper portion thereof, an external thread turned on the second cylinder 151 at a lower end of the second connector 150, and the second connector 150 may be screwed into the rod body 20 to be connected to the rod body 20.

When the energy-saving lamp is used, a user stands on the ground or any stable table surface, holds the other end of the rod body 20, operates the whole lamp changing rod 100, rotates the rod body 20, transmits force to the elbow adjusting device 10 through the supporting effect of the second connecting piece 150 to deform, changes the angle between the plane of the opening 161 of the clamping space 160 and the axial direction of the rod body 20, and realizes the replacement of the energy-saving lamp 200. Even in the high place or the narrow and small position in space, tools such as a ladder do not need to be carried any more, the high place is climbed for replacement, the user can operate on the ground, the working strength and the working time of workers can be reduced to a great extent, and meanwhile, the working efficiency is improved while the working time is saved due to the fact that the climbing is not required to be carried back and forth. Moreover, because the light changing pole 100 has a certain length and is made of insulating materials, a relatively long distance is kept between the light changing pole and the electric equipment when a user uses the light changing pole, and the safety of workers is greatly improved while the replacement efficiency is ensured.

The lamp post 100 is a targeted design for the inconvenience of replacing the energy-saving lamp 200 which is not vertically installed in a complex place such as an electric power place, a large-scale factory and the like, and particularly has a more obvious effect on replacing the energy-saving lamp 200 which is not vertically installed, and of course, the lamp post 100 is also applicable to replacing other types of lamps or lamps in other places and installation angles, so that the use place and the use object of the lamp post 100 are not limited to the above embodiments.

The light changing pole 100 and the elbow adjusting device 10 in the above embodiment of the invention have the following advantages:

(1) the elbow adjusting device 10 can be twisted and deformed freely as required to change the angle between the plane of the opening 161 and the axial direction of the rod body 20 without being limited by the replacement space and position, so that the replacement operation of various non-vertical installation and corner installation lamps is more convenient;

(2) the elastic modulus of the second support member 112 is greater than that of the first support member 111, so that the support member 110 can be effectively deformed when stressed, and can keep the original appearance when not stressed;

(3) the replacement of the lamp is carried out on the ground without carrying a ladder to ascend, the accuracy and the force of the elbow adjusting device 10 are ensured through the connection and support action of the first connecting piece 140 and the second connecting piece 150, the working intensity and the working time of workers for replacing the lamp are reduced, and the working efficiency is improved;

(4) because the people stand on the ground to operate, enough safe distance is kept between the people and the power equipment, and the lamp is replaced by using the insulation replacing tool, hands do not need to directly contact the power equipment, and the safety of workers is improved while the lamp is replaced.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides an elbow adjusting device for trade lamp pole, its characterized in that includes:

a fixed seat;

2. The elbow adjustment device according to claim 1, wherein the support member comprises a first support member and a second support member, the first support member being nested within the second support member;

wherein the elastic modulus of the second support member is greater than the elastic modulus of the first support member.

3. The elbow adjustment device of claim 2, wherein the first support member is a spring and the second support member is a rubber member.

4. The elbow adjustment device of claim 2, wherein the inner surface of the second support member is secured in abutment with the outer surface of the first support member.

5. The elbow adjustment device of claim 1, wherein the support member itself defines a bend angle, the bend angle being in the range of 90-180 degrees.

6. The elbow adjustment device as claimed in claim 1, further comprising a first connector comprising at least two interconnected first cylinders;

one end of the first connecting piece is connected with the fixed seat through one of the first cylinders, and the other end of the first connecting piece is connected with the supporting piece through the other first cylinder.

7. The elbow adjustment device of claim 1, further comprising a second connector comprising at least two interconnected second cylinders;

one end of the second connecting piece is connected with the supporting piece through one of the second cylinders, and the other end of the second connecting piece is connected with the rod body through the other second cylinder.

8. The elbow adjusting device according to claim 1, wherein the clamping member comprises at least two fixing posts, each adjacent two fixing posts are spaced apart from each other, and all the fixing posts and the fixing seat define the clamping space together.

9. The elbow adjustment device according to claim 8, wherein the fixing base is provided with mounting holes, each fixing post is mounted in each mounting hole, and the position of at least one fixing post in each mounting hole is adjustable to change the volume of the clamping space.

10. A light changing pole, comprising:

the elbow adjustment device according to any one of claims 1-9, and a rod connected to the elbow adjustment device via the support member.