Telescopic rod body and lighting device

Abstract

The telescopic rod body comprises an inner pipe, an outer pipe, a steering device and a connecting rod, the inner pipe is sleeved with the outer pipe, the steering device is connected with one axial end of the inner pipe, a pipe locking device is arranged at the axial end of the outer pipe on a telescopic path of the inner pipe, and the pipe locking device comprises an ejector pin. A limiting hole used for being matched with the ejector pin is formed in the wall face of the side, away from the steering device, of the inner pipe, the connecting rod is formed by combining two shells, at least one shell is provided with a groove body, a wire passing groove is formed in the connecting rod through the groove body, and one end of the connecting rod is provided with a first matching hole located outside the wire passing groove. The connecting rod is in shaft connection with the steering device through the first matching hole, the pipe locking device can fix the position, extending out of the outer pipe, of the inner pipe, the length of the telescopic rod body is prevented from being changed under non-manual operation, and cable arrangement operation in the telescopic rod body is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of parts in lighting devices, and particularly relates to a telescopic rod body and a lighting device. Background Art

[0002] The telescopic rod body is a common mechanical structure component. By virtue of its variable length and the characteristic of locking and maintaining after reaching a certain length, it can be used as an important connecting component between two components in an article, and to a certain extent, it meets the usage requirements of users.

[0003] Some lighting devices also involve the application of telescopic rod bodies. For example, the lighting fixture disclosed in the utility model document with the authorization publication number of CN220186728U. The telescopic rod body used on this lighting device maintains its overall length before and after stretching by means of friction. However, when the telescopic rod body of this structure is subjected to external forces under non-artificial operation, the influence on the position maintaining ability of the object it connects is relatively large. Suddenly applying an external force will cause the relative static position relationship between the inner and outer tubes of the telescopic rod body to be released, resulting in situations such as the telescopic rod body shortening by itself, causing the lamp head it connects to suddenly drop during the use of the lighting device, affecting the normal lighting of the lighting device.

[0004] On the other hand, if a lighting device with a telescopic rod body is to supply power to the lamp head part, it is necessary to introduce the cable on the lamp body to the lamp head. Based on the protection of the cable, when arranging the cable of the lighting device, the exposure of the cable outside the lighting device should be reduced as much as possible. Excessive exposure of the cable will increase the risk of cable damage. Content of the Utility Model

[0005] Aiming at the technical defects existing in the background art, the utility model provides a telescopic rod body and a lighting device, which solve the above technical problems and meet the actual requirements. The specific technical solutions are as follows:

[0006] The utility model discloses a telescopic rod body, which includes an inner tube, an outer tube, a steering device and a connecting rod. The inner tube is sleeved inside the outer tube. The steering device is connected to one end of the inner tube in one axial direction. The outer tube is provided with a tube locking device at the axial end on the telescopic path of the inner tube. The tube locking device includes a thimble. The wall surface of the inner tube far from the steering device is provided with a limiting hole for cooperating with the thimble. The connecting rod is composed of two outer shells, and at least one of the outer shells is provided with a groove. The connecting rod forms a wire through groove inside through the groove. One end of the connecting rod is provided with a first fitting hole located outside the wire through groove. The connecting rod is axially connected to the steering device through the first fitting hole.

[0007] As a further embodiment of the present utility model, the pipe locking device further includes a first connecting seat, a pressing plate, and an elastic member. The first connecting seat is sleeved outside the axial end of the inner pipe on the telescopic path. The pressing plate is connected to the inside of the first connecting seat through a rotating shaft passing through the middle thereof. The thimble is provided at one end of the pressing plate. A first through hole is provided on the wall surface of the first connecting seat near the thimble side. A first fitting groove is provided at the other end of the pressing plate. One end of the elastic member is fitted in the first fitting groove, and the other end abuts against the wall surface of the first connecting seat outside the first through hole.

[0008] As a further embodiment of the present utility model, the steering device includes a second connecting seat, a rotating member, an adjusting stud, and a countersunk head bolt. The first connecting seat is sleeved outside the axial end of the outer pipe on the telescopic path of the inner pipe. A second fitting hole is provided in the middle of the second connecting seat. One end of the rotating member in the axial direction is fitted in the second fitting hole. A second fitting groove is provided at the other end of the rotating member in the axial direction. The adjusting stud and the countersunk head bolt respectively penetrate through both sides of the rotating member. After passing through the side wall of the rotating member, the adjusting stud and the countersunk head bolt are connected in the second fitting groove, and the two after connection are fitted in the first fitting hole to realize the shaft connection between the connecting rod and the rotating member.

[0009] As a further embodiment of the present utility model, the rotating member below the second fitting groove is provided with a second wire passing hole communicating with the wire passing groove.

[0010] As a further embodiment of the present utility model, a connecting end is connected to the end of the outer pipe in the other axial direction. The connecting end is provided with a first wire passing hole. Grooves are provided on both sides of the connecting end. Elastic pieces integrally formed with the connecting end are provided in the grooves. Protrusions are provided at the ends of the elastic pieces. A third fitting hole is provided at the end of the outer pipe in the other axial direction. The connecting end is connected to the end of the outer pipe in the other axial direction through the cooperation between the protrusions and the third fitting hole.

[0011] The present utility model also discloses a lighting device, including the telescopic rod body, a cable, a lamp head, and a lamp body described above. The end of the connecting rod far from the shaft connection with the rotating member is fixedly connected to the side wall of the lamp head. Third connecting seats and fourth connecting seats extending outward from the lamp body are respectively provided at both ends of the lamp body. One axial end of the outer pipe is fitted in the fourth fitting hole in the third connecting seat. The other axial end of the outer pipe is fitted in the fifth fitting hole in the fourth connecting seat. The connecting end is fixedly connected to the fourth connecting seat. The cable passes through the first wire passing hole and penetrates from inside the fourth connecting seat into the telescopic rod body. The cable inside the telescopic rod body sequentially passes through the second wire passing hole and the wire passing groove and then is connected into the lamp head.

[0012] As a further embodiment of the present utility model, the fourth connecting seat is composed of a first housing and a second housing. The fifth mating hole is provided at the end of the first housing. A second through hole is provided on the wall surface of the first housing below the fifth mating hole. At least two protruding columns passing through the second through hole are provided on the end face of the connecting end head. A first mounting hole is provided in the middle of the protruding column. A third mating groove is provided at the end of the first housing away from the fifth mating hole. The second housing is fitted in the third mating groove. A second mounting hole facing the first mounting hole is provided at the end of the second housing close to the fifth mating hole.

[0013] As a further embodiment of the present utility model, the cable inside the fourth connecting seat passes through the second through hole and penetrates into the first wire passing hole. A third wire passing hole for the cable to penetrate into is provided at the end of the first housing away from the fifth mating hole.

[0014] The beneficial effects of the present utility model are as follows:

[0015] The pipe locking device fixes the position of the inner pipe both before and after the length of the telescopic rod body is adjusted, thereby restricting the change of the length of the telescopic rod body under non-artificial operation, enhancing the ability of the telescopic rod body to maintain its own length during work; for the lighting device using the above-mentioned telescopic rod body, the lamp head can be connected to the steering device on the telescopic rod body for use, enabling the lamp head to have the ability to adjust its position in multiple directions to illuminate different areas. Moreover, the connecting end head on the telescopic rod body can be connected to the lamp body of the lighting device. The cable led out from the lamp body passes through the connecting end head and then enters the lamp head from inside the telescopic rod body. The entire layout route of the cable is inside the lighting device, avoiding the exposure of the cable outside the lighting device and reducing the risk of cable damage. Description of the Drawings

[0016] Figure 1 Schematic diagram of the external structure of the telescopic rod body Figure 1 。

[0017] Figure 2 Schematic diagram of the external structure of the telescopic rod body Figure 2 。

[0018] Figure 3 Schematic diagram of the internal structure of the telescopic rod body when it is not extended.

[0019] Figure 4 For Figure 3 Local enlarged schematic diagram at A in

[0020] Figure 5 For Figure 3 Local enlarged schematic diagram at B in

[0021] Figure 6 For Figure 3 Local enlarged schematic diagram at C in

[0022] Figure 7 It is a schematic diagram of the internal structure after the telescopic rod body is extended.

[0023] Figure 8 It is Figure 7 a partial enlarged schematic diagram at position D in

[0024] Figure 9 It is Figure 7 a partial enlarged schematic diagram at position E in

[0025] Figure 10 a schematic diagram of the structure of the pipe locking device.

[0026] Figure 11 a component composition diagram of the steering device.

[0027] Figure 12 a schematic diagram of the structure of the connecting end.

[0028] Figure 13 a schematic diagram of the cable passing into the telescopic rod body.

[0029] Figure 14 a schematic diagram of the external structure of the lighting device.

[0030] Figure 15 a schematic diagram of the internal structure of the lighting device.

[0031] Figure 16 It is Figure 15 a partial enlarged schematic diagram at position F in

[0032] Figure 17 a schematic diagram of the cable layout inside the fourth connecting seat.

[0033] In the figure, 1. Telescopic rod body; 11. Inner tube; 112. Limit hole; 12. Outer tube; 121. Third mating hole; 2. Pipe locking device; 21. First connecting seat; 211. First through hole; 22. Pressing plate; 221. Thimble; 222. First mating groove; 23. Elastic member; 3. Steering device; 31. Second connecting seat; 311. Second mating hole; 32. Rotating member; 321. Second mating groove; 322. Second wire passing hole; 33. Connecting rod; 331. Outer shell; 332. Wire groove; 333. First mating hole; 34. Adjusting stud; 35. Countersunk head bolt; 4. Connecting end; 41. First wire passing hole; 42. Groove; 43. Elastic sheet; 431. Convex point; 44. Convex column; 45. First mounting hole; 5. Cable; 6. Lamp head; 7. Lamp body; 8. Third connecting seat; 81. Fourth mating hole; 9. Fourth connecting seat; 91. Fifth mating hole; 92. First housing; 921. Second through hole; 922. Third mating groove; 923. Third wire passing hole; 93. Second housing; 931. Second mounting hole. Detailed implementation mode

[0034] The utility model discloses a telescopic rod body, such as Figures 1 - 8 and Figure 13 As shown in combination, the telescopic rod body 1 includes an inner tube 11, an outer tube 12, a steering device 3 and a connecting rod 33. The inner tube 11 is sleeved inside the outer tube 12. The steering device 3 is connected to one end of the inner tube 11 in one axial direction. A tube locking device 2 is provided at the axial end of the outer tube 12 on the telescopic path of the inner tube 11. The tube locking device 2 includes a thimble 221. A limiting hole 112 for cooperating with the thimble 221 is provided on the wall surface of the inner tube 11 away from the steering device 3. The connecting rod 33 is composed of two outer shells 331, and at least one of the outer shells 331 is provided with a groove body. The connecting rod 33 forms a wire groove 332 inside through the groove body. One end of the connecting rod 33 is provided with a first fitting hole 333 located outside the wire groove 332. The connecting rod 33 is axially connected to the steering device 3 through the first fitting hole 333.

[0035] It should be noted that: the telescopic rod body 1 has at least one inner tube 11, that is, the component connection relationship between the two tube structures with an inner and outer sleeved relationship is applicable to the above-mentioned inner tube 11 and outer tube 12. Therefore, the tube locking device 2 is provided on a tube belonging to the outer tube 12 among the two tube structures with an inner and outer sleeved relationship on the telescopic rod body 1. That is, the tube locking device 2 provided on the telescopic rod body 1 can be one, two or more; and when the inner tube 11 extends out of the outer tube 12, the thimble 221 is fitted into the limiting hole 112 to limit the telescopic movement of the inner tube 11. Since the existing telescopic rod body 1 realizes the relative static state of the inner tube 11 and the outer tube 12 before and after the length adjustment of the telescopic rod body 1 through the friction between the inner tube 11 and the outer tube 12 to keep the length of the telescopic rod body 1 unchanged, but under the action of an external force, the state of maintaining relative static between the inner tube 11 and the outer tube 12 by using friction is easily affected, and it is difficult to maintain the positions of the inner tube 11 and the outer tube 12. By fixing the position of the inner tube 11 before and after the length adjustment of the telescopic rod body 1 through the tube locking device 2, the change of the length of the telescopic rod body 1 under non-artificial operation can be restricted, so that the ability of the telescopic rod body 1 to maintain its own length during work is enhanced.

[0036] Secondly, the ejector pin 221 may not be inserted into the limiting hole 112, but instead, the ejector pin 221 abuts against the surface of the inner tube 11, increasing the magnitude of the frictional force that needs to be overcome when driving the inner tube 11 to expand and contract within the outer tube 12. At this time, the influence of the external force on the relatively stationary state between the inner tube 11 and the outer tube 12 is relatively small, thereby keeping the length of the telescopic rod body 1 unchanged; compared with the existing telescopic rod body 1 that achieves relative static between the inner tube 11 and the outer tube 12 before and after length adjustment through the frictional force between the inner tube 11 and the outer tube 12, the above method has a more significant effect on maintaining the length of the telescopic rod body 1 at a certain length value.

[0037] In addition, the position where the steering device 3 is arranged on the telescopic rod body 1 belongs to the variable-length part of the telescopic rod body 1, and the adjustment of the length of the telescopic rod body 1 is achieved by the inner tube 11 extending out of the outer tube 12 or the inner tube 11 retracting into the outer tube 12. Therefore, the end of the variable-length part of the telescopic rod body 1 is an inner tube 11, and at the axial end of this inner tube 11, the steering device 3 can be axially connected to the connecting rod 33 to achieve the combination of the two, realizing the position adjustment of the external components connected to the telescopic rod body 1 in multiple directions; when assembling, if it is necessary to arrange the cable 5 inside the connecting rod 33, the cable 5 can be first loaded into the groove in one of the outer shells 331, and then the other outer shell 331 is installed along the direction in which the groove cooperates with the cable 5, achieving the arrangement of the cable 5 inside the connecting rod 33 while assembling the connecting rod 33, simplifying the operation of arranging the cable 5 inside the connecting rod 33.

[0038] Specifically, as Figure 1 、 Figure 4 、 Figure 8 and Figure 10 shown, the tube locking device 2 further includes a first connecting seat 21, a pressing plate 22, and an elastic member 23. The first connecting seat 21 is sleeved outside the axial end of the outer tube 12 on the telescopic path of the inner tube 11. The pressing plate 22 is connected to the inside of the first connecting seat 21 through a rotating shaft passing through the middle thereof. The ejector pin 221 is arranged at one end of the pressing plate 22. A first through hole 211 is provided on the wall surface of the first connecting seat 21 close to the ejector pin side. A first fitting groove 222 is provided at the other end of the pressing plate 22. One end of the elastic member 23 is fitted in the first fitting groove 222, and the other end abuts against the wall surface of the first connecting seat 21 outside the first through hole 211.

[0039] When it is necessary to adjust the length of the telescopic rod body 1, by pressing the end of the pressing plate 22 close to the elastic member 23, the elastic member 23 is compressed, and the end of the pressing plate 22 with the ejector pin 221 will swing in the direction away from the first through hole 211 side and no longer press on the outer wall of the inner tube 11, thereby reducing the magnitude of the frictional force that needs to be overcome when driving the inner tube 11 to expand and contract within the outer tube 12, so that the user can achieve the expansion and contraction of the inner tube 11 within the outer tube 12 by applying a small traction force to the inner tube 11; when the ejector pin 221 is aligned with the limit hole 112 and the finger pressing the end of the pressing plate 22 close to the elastic member 23 is released, the ejector pin 221 will move into the limit hole 112 under the restoring action of the elastic member 23, so that the relative positions of the inner tube 11 and the outer tube 12 are fixed.

[0040] Since the elastic member 23 is in an extended state under normal conditions, even before and after the length of the telescopic rod body 1 changes and the ejector pin 221 is not aligned with the limit hole 112, the elastic member 23 will push up one end of the pressing plate 22, and the end of the pressing plate 22 with the ejector pin 221 will swing toward the first through hole 211 side. After passing through the first through hole 211, the ejector pin 221 presses on the outer wall of the inner tube 11, thereby increasing the magnitude of the frictional force that needs to be overcome when driving the inner tube 11 to expand and contract within the outer tube 12, preventing the relative static position relationship between the inner tube 11 and the outer tube 12 from being released when the inner tube 11 is subjected to external forces under non-human operation.

[0041] Specifically, as Figure 9 and Figure 11 shown, the steering device 3 includes a second connecting seat 31, a rotating member 32, an adjusting stud 34 and a countersunk head bolt 35. The end of the second connecting seat 31 is fitted inside one end of the inner tube 11 in one axial direction. A third mating hole 311 is provided in the middle of the second connecting seat 31. One end of the rotating member 32 in the axial direction is fitted inside the third mating hole 311. A second mating groove 321 is provided at the other end of the rotating member 32 in the axial direction. The adjusting stud 34 and the countersunk head bolt 35 respectively penetrate through both sides of the rotating member 32. After penetrating through the side wall of the rotating member 32, the adjusting stud 34 and the countersunk head bolt 35 are connected inside the second mating groove 321, and the two connected together are fitted inside the first mating hole 333 to achieve the shaft connection between the connecting rod 33 and the rotating member 32.

[0042] By rotating the rotating member 32 within the second connecting seat 31, the external component connected to the steering device 3 can be rotated around the axis in the axial direction of the rotating member 32. The connecting rod 33 can rotate around the end connected to the rotating member 32 in an axis connection manner. Coupled with the telescopic control of the inner tube 11 within the outer tube 12 to adjust the length of the telescopic rod body 1, the distance of the external component connected to the steering device 3 in the length direction of the telescopic rod body 1 can be adjusted, so as to achieve the purpose of adjusting the position of the external component connected to the steering device 3 in multiple directions. In addition, the connecting rod 33 composed of two hollow outer shells 331 provides space for the cable 5 to pass through its internal space.

[0043] It should be further noted that, as Figure 9 and Figure 11 shown in combination, the rotating member 32 below the second mating groove 321 is provided with a second wire passing hole 322.

[0044] Among them, the second wire passing hole 322 enables the cable 5 to pass through the inside of the rotating member 32 to realize the cable 5 layout between the rotating member 32 and the connecting rod 33.

[0045] Specifically, as Figure 2 and Figure 6 shown in combination, one end of the outer tube 12 in the other axial direction is connected with a connection end 4. The connection end 4 is provided with a first wire passing hole 41. Both sides of the connection end 4 are provided with grooves 42. Elastic pieces 43 integrally formed with the connection end 4 are arranged in the grooves 42. The end of the elastic piece 43 is provided with bumps 431. The other axial end of the outer tube 12 is provided with a third mating hole 121. The connection end 4 is connected to the other axial end of the outer tube 12 through the cooperation between the bumps 431 and the third mating hole 121.

[0046] Among them, when the connection end 4 is inserted into one axial end of the outer tube 12, the part of the connection end 4 with the elastic piece 43 is inserted first. During the insertion process, the position of the bump 431 is offset by the deformation of the first elastic piece 312, so as to avoid the obstruction caused by the bump 431 when the connection end 4 enters the other axial end of the outer tube 12. After the bump 431 moves to the position where the third mating hole 121 is located, the elastic recovery of the elastic piece 43 makes the bump 431 move into the third mating hole 121, forming a connection between the connection end 4 and the other axial end of the outer tube 12, enabling the telescopic rod body 1 to be connected to the external component by using the connection end 4.

[0047] The position where the connecting end 4 is arranged on the telescopic rod body 1 is at the axial end of an outer tube 12 which is the outermost layer of the telescopic rod body 1. As one of the structures for the telescopic rod body 1 to connect external components, after the connecting end 4 is connected to an external component, it can not only fix the position of the telescopic rod body 1, but also enable the cable 5 to pass through the connecting end 4 and enter the telescopic rod body 1 through the first wire passing hole 41.

[0048] The present utility model also discloses a lighting device, as Figures 13 - 15 As shown in combination, it includes the telescopic rod body 1, the cable 5, the lamp head 6 and the lamp body 7. The end of the connecting rod 33 far from the shaft connection with the rotating member 32 is fixedly connected to the side wall of the lamp head 6. The two ends of the lamp body 7 are respectively provided with a third connecting seat 8 and a fourth connecting seat 9 extending outward from the lamp body 7. One axial end of the outer tube 12 is fitted into the fourth fitting hole 81 in the third connecting seat 8, and the other axial end of the outer tube 12 is fitted into the fifth fitting hole 91 in the fourth connecting seat 9. The connecting end 4 is fixedly connected to the fourth connecting seat 9. The cable 5 passes through the first wire passing hole 41 and penetrates from inside the fourth connecting seat 9 into the telescopic rod body 1. The cable 5 inside the telescopic rod body 1 sequentially passes through the second wire passing hole 322 and the wire passing groove 332 and then is connected into the lamp head 6.

[0049] It should be noted that when the telescopic rod body 1 is installed in the lighting device for use, first, the telescopic rod body 1 is installed into the third connecting seat 8 along the direction matching with the fourth fitting hole 81, and then the end in the length direction of the telescopic rod body 1 is installed into the fourth connecting seat 9 along the direction matching with the fifth fitting hole 91. At this time, one axial end of the outer tube 12 forms an internal and external matching relationship with the third connecting seat 8, and the other axial end of the outer tube 12 also forms an internal and external matching relationship with the fourth connecting seat 9, so as to realize the connection between the telescopic rod body 1 and the lamp body 7.

[0050] Before the telescopic rod body 1 is installed into the fourth connecting seat 9, the cable 5 inside the lamp body 7 is led out from the end of the fourth connecting seat 9. After being led out, the cable 5 is introduced into the telescopic rod body 1 from inside the fourth connecting seat 9 through the first wire passing hole 41, and then is led out from the axial end of the inner tube 11 far from the fourth connecting seat 9. Then, the end in the length direction of the telescopic rod body 1 is installed into the fourth connecting seat 9, and then the cable 5 led out from the inner tube 11 sequentially passes through the second wire passing hole 322 and the wire passing groove 332 on the steering device 3. After the cable 5 inside the steering device 3 is arranged, at this time, the steering device 3 is also assembled and connected to the axial end of the inner tube 11. Finally, the cable 5 led out from the steering device 3 is connected into the lamp head 6 and the lamp head 6 is connected to the connecting rod 33 of the steering device 3, so as to complete the operation of installing the telescopic rod body 1 into the lighting device.

[0051] After the telescopic rod body 1 is applied to the lighting device, the lamp head 6 has the ability to adjust its position in multiple directions to irradiate different areas, and the connecting end 4 can be connected to the lamp body 7 of the lighting device. After the cable 5 led out from the lamp body 7 passes through the connecting end 4, it is connected into the lamp head 6 from inside the telescopic rod body 1. The entire layout route of the cable 5 is inside the lighting device, avoiding the exposure of the cable 5 outside the lighting device and reducing the risk of damage to the cable 5. When arranging the cable 5 inside the lighting device, the cable 5 can be placed inside the lighting device at a position where it is convenient to observe, making the cable 5 arrangement operation easier.

[0052] Specifically, as Figures 14 - 17 As shown in combination, the fourth connecting seat 9 is composed of a first housing 92 and a second housing 93. The fifth mating hole 91 is provided at the end of the first housing 92. A second through hole 921 is provided on the wall surface of the first housing 92 below the fifth mating hole 91. At least two convex columns 44 penetrating the second through hole 921 are provided on the end face of the connecting end 4. A first mounting hole 45 is provided in the middle of the convex column 44. A third mating groove 922 is provided at the end of the first housing 92 away from the fifth mating hole 91. The second housing 93 is fitted in the third mating groove 922. A second mounting hole 931 facing the first mounting hole 45 is provided at the end of the second housing 93 close to the fifth mating hole 91.

[0053] Among them, after the cable 5 in the lamp body 7 is introduced into the fourth connecting seat 9, the cable 5 can be led out from the second through hole 921 at the end of the fourth connecting seat 9 and then enter the telescopic rod body 1. When arranging the cable 5 inside the fourth connecting seat 9, the second housing 93 can be first removed from the third mating groove 922. After the second housing 93 is removed, the cable 5 in the lamp body 7 can be led out to the space outside the first housing 92, which is convenient for the assembler to observe the cable 5 to achieve the purpose of guiding the cable 5 to the position where the second through hole 921 is located. After the cable 5 is led out from the inner tube 11, the telescopic rod body 1 can be inserted into the fourth connecting seat 9 along the direction of the cooperation between the connecting end 4 and the fifth mating hole 91. At this time, the convex column 44 penetrates the second through hole 921, and then the second housing 93 is inserted into the third mating groove 922 along the direction where the second mounting hole 931 is aligned with the first mounting hole 45, and a connecting component is inserted into the second mounting hole 931 and the first mounting hole 45 to form a fixed connection between the telescopic rod body 1 and the fourth connecting seat 9. During the process of arranging the cable 5 in the fourth connecting seat 9, the assembler can form enough space to observe the cable 5 in the fourth connecting seat 9 by removing the second housing 93. While ensuring the stable arrangement of the cable 5 in the fourth connecting seat 9, the connection between the telescopic rod body 1 and the fourth connecting seat 9 is also realized, making the assembly operation of the lighting device more convenient.

[0054] It should be further noted that, as Figure 16 andFigure 17 As shown in combination, the cable 5 within the fourth connecting base 9 passes through the second through-hole 921 and reaches the first wire-passing hole 41. At the end of the first housing 92 remote from the fifth mating hole 91, there is provided a third wire-passing hole 923 for the cable 5 to pass through.

[0055] Among them, after the cable 5 is led out from the second through-hole 921 at the end of the fourth connecting base 9, since the length of the telescopic rod body 1 can be changed, the length of the cable 5 within the telescopic rod body 1 needs to be long enough. To avoid the connecting end 4 affecting the operation of leaving a sufficient length of the cable 5 inside the telescopic rod body 1, the cable 5 can first pass through the first wire-passing hole 41 and pass through the connecting end 4 that is not installed on the telescopic rod body 1. After the reserved length of the cable 5 on the side of the outer tube 12 is long enough when the connecting end 4 is mated, the installation of the connecting end 4 is carried out, which is convenient for the operation when the cable 5 led out from the fourth connecting base 9 passes through the telescopic rod body 1; while the cable 5 led out from the lamp body 7 can enter the fourth connecting base 9 through the third wire-passing hole 923, and the position of the third wire-passing hole 923 can be observed by removing the second housing 93, so as to facilitate the cable 5 led out from the lamp body 7 to enter the fourth connecting base 9.

[0056] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A telescopic rod body, the telescopic rod body comprising an inner tube, an outer tube, a steering device and a connecting rod, the inner tube being sleeved inside the outer tube, characterized in that, The steering device is connected to one end of the inner tube in one of the axial directions. At the axial end of the outer tube on the telescopic path of the inner tube, there is a tube locking device. The tube locking device includes a thimble. On the wall surface of the inner tube away from the steering device side, there is a limiting hole for cooperating with the thimble. The connecting rod is composed of two outer shells, and at least one of the outer shells is provided with a groove. The connecting rod forms a wire passing groove inside through the groove. One end of the connecting rod is provided with a first fitting hole outside the wire passing groove. The connecting rod is axially connected to the steering device through the first fitting hole.

2. The telescopic rod body according to claim 1, wherein The tube locking device further includes a first connecting seat, a pressing plate and an elastic member. The first connecting seat is sleeved outside the axial end of the outer tube on the telescopic path of the inner tube. The pressing plate is connected to the inside of the first connecting seat through a rotating shaft passing through the middle of the pressing plate. The thimble is arranged at one end of the pressing plate. On the wall surface of the first connecting seat close to the thimble side, there is a first through hole. The other end of the pressing plate is provided with a first fitting groove. One end of the elastic member is fitted in the first fitting groove, and the other end abuts against the wall surface of the first connecting seat outside the first through hole.

3. The telescopic rod body according to claim 1, wherein The steering device includes a second connecting seat, a rotating member, an adjusting stud and a countersunk head bolt. The end of the second connecting seat is fitted inside one end of the inner tube in one of the axial directions. The middle of the second connecting seat is provided with a second fitting hole. One end of the rotating member in the axial direction is fitted in the second fitting hole. The other end of the rotating member in the axial direction is provided with a second fitting groove. The adjusting stud and the countersunk head bolt respectively penetrate through both sides of the rotating member. After the adjusting stud and the countersunk head bolt penetrate through the side wall of the rotating member, they are connected in the second fitting groove, and the two after connection are fitted in the first fitting hole to realize the axial connection between the connecting rod and the rotating member.

4. The telescopic rod body according to claim 3, characterized in that, Below the second fitting groove of the rotating member, there is a second wire passing hole communicating with the wire passing groove.

5. The telescopable rod body according to claim 1, wherein At the other axial end of the outer tube, there is a connecting end head. The connecting end head is provided with a first wire passing hole. On both sides of the connecting end head, there are grooves. Inside the grooves, there are elastic pieces integrally formed with the connecting end head. The end of the elastic piece is provided with a bump. At the other axial end of the outer tube, there is a third fitting hole. The connecting end head is connected to the other axial end of the outer tube through the cooperation between the bump and the third fitting hole.

6. A lighting device, comprising a telescopic rod body, a cable, a lamp holder and a lamp body as described in any one of claims 1 to 5, characterized in that, The end of the connecting rod away from the axial connection with the rotating member is fixedly connected to the side wall of the lamp head. At both ends of the lamp body, there are respectively a third connecting seat and a fourth connecting seat extending outward from the lamp body. One axial end of the outer tube is fitted in a fourth fitting hole in the third connecting seat. The other axial end of the outer tube is fitted in a fifth fitting hole in the fourth connecting seat. The connecting end head is fixedly connected to the fourth connecting seat. The cable passes through the first wire passing hole and penetrates into the telescopic rod body from inside the fourth connecting seat. The cable inside the telescopic rod body sequentially passes through the second wire passing hole and the wire passing groove and then is connected into the lamp head.

7. The lighting device according to claim 6, characterized in that, The fourth connecting seat is composed of a first housing and a second housing. The fifth mating hole is arranged at the end of the first housing. A second through hole is provided on the wall surface of the first housing below the fifth mating hole. At least two protruding posts penetrating through the second through hole are provided on the end face of the connecting end. A first mounting hole is provided in the middle of the protruding post. A third mating groove is provided at the end of the first housing away from the fifth mating hole. The second housing is fitted in the third mating groove. A second mounting hole facing the first mounting hole is provided at the end of the second housing close to the fifth mating hole.

8. The lighting device according to claim 7, characterized in that, The cable in the fourth connecting seat penetrates through the second through hole to the first wire passing hole. A third wire passing hole for the cable to penetrate into is provided at the end of the first housing away from the fifth mating hole.

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