Telescopic photography tripod and telescopic rod assembly thereof

Abstract

The telescopic rod assembly comprises a telescopic rod body and a tail seat, and the telescopic rod body comprises an outer pipe and an inner pipe; the tailstock is fixedly connected to the tail end of the outer pipe; the tail end of the outer pipe is provided with at least one pair of oppositely-arranged first through holes, the tailstock comprises an outer fixing part, the outer fixing part is arranged at the tail end of the outer pipe in a sleeved mode, the outer fixing part is provided with at least one pair of second through holes opposite to the first through holes, and at least one limiting piece extending in the radial direction is arranged in the tail end of the outer pipe. The two ends of the limiting piece penetrate through the pair of first through holes and then are inserted into the corresponding pair of second through holes. According to the telescopic rod assembly, the gap between the tail end face of the inner pipe and the tail end face of the outer pipe is greatly shortened, the section number of the inner pipe can be reduced, the section number of the inner pipe used under the condition that the telescopic rod assembly obtains the preset extension length is smaller, and therefore the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of photographic equipment, in particular to a telescopic photographic tripod and a telescopic rod assembly thereof. Background Art

[0002] Existing telescopic photography tripods usually include a telescopic rod assembly, a mounting seat, and at least three legs. The mounting seat is mounted on the telescopic rod assembly, and the upper ends of the at least three legs are pivotally connected to the mounting seat. When the tripod is handheld for shooting, the at least three legs are in a folded state to form a handle structure; when the tripod needs to be placed upright for shooting, the at least three legs are unfolded to form a tripod stand.

[0003] The existing telescopic rod assembly includes an outer tube and a plurality of inner tubes arranged in the outer tube. The tail end of the outer tube is provided with a tail seat to prevent the inner tube from slipping out of the tail end of the outer tube. The existing fixing structure of the tail seat and the outer tube is as follows: the tail seat has a plug, the outer wall of the plug is provided with a positioning protrusion, and the tail end of the outer tube is provided with a positioning hole that cooperates with the positioning protrusion. The plug of the tail seat is inserted into the tail end of the outer tube, and the positioning protrusion is inserted into the positioning hole. In order to prevent the positioning protrusion from slipping out of the positioning hole due to the shaking of the plug, the length of the plug inserted into the outer tube cannot be too short in this fixing structure, resulting in a large distance between the tail end face of the inner tube and the tail end face of the outer tube, so that a large number of inner tube sections are required, and the cost is high. Utility Model Content

[0004] Based on this, it is necessary to overcome the defects of the prior art and provide a telescopic rod assembly which uses fewer inner tube sections at the same extension length to reduce production costs.

[0005] In order to solve the above technical problems, the utility model provides a telescopic rod assembly, comprising:

[0006] The telescopic rod body comprises an outer tube and at least one section of an inner tube disposed inside the outer tube;

[0007] A tailstock, fixedly connected to the tail end of the outer tube;

[0008] The tail end of the outer tube is provided with at least one pair of first through holes arranged opposite to each other, the tail seat includes an external fixing portion, the external fixing portion is sleeved on the tail end of the outer tube, the external fixing portion is provided with at least one pair of second through holes opposite to the first through holes, and the tail end of the outer tube is provided with at least one radially extending limiter, and the two ends of the limiter respectively pass through the pair of first through holes and then are inserted into the corresponding pair of second through holes.

[0009] The telescopic rod assembly is provided with a radially extending stopper in the tail end of the outer tube, and the two ends of the stopper are respectively inserted into the corresponding first through hole and the second through hole. The stopper, on the one hand, stops the inner tube to prevent the inner tube from slipping out of the tail end of the outer tube, and on the other hand, fixes the outer fixing part of the tail seat to the tail end of the outer tube. Since the position of the first through hole can be as close as possible to the tail end face of the outer tube, the gap between the tail end face of the inner tube and the tail end face of the outer tube is greatly shortened, the number of sections of the inner tube can be saved, and the number of inner tube sections used when the telescopic rod assembly obtains a preset extension length is less, thereby reducing production costs.

[0010] In one of the embodiments, the tail stock includes a bottom located at the distal end of the outer fixing portion, and at least one inner fixing portion extending toward the outer tube side is provided on the surface of the bottom facing the outer tube, an avoidance groove for avoiding the inner tube is provided between the inner fixing portion and the outer fixing portion, and at least one third through hole is provided on the inner fixing portion opposite to at least one pair of second through holes on the outer fixing portion, and the limiting member passes through the third through hole.

[0011] In one of the embodiments, at least three mounting portions for mounting a connecting rod are provided on the bottom around the central axis, and a semicircular first groove is provided on the surface of each mounting portion facing away from the outer tube; a cover plate is also included, which is located on the side of the bottom facing away from the outer tube, and a second groove corresponding to the first groove is provided on the surface facing the bottom, and the second groove cooperates with the first groove to form an axial hole for cooperating with the rotating shaft on the connecting rod.

[0012] In one of the embodiments, a stud extending toward the outer tube side is provided at the center of the bottom, the mounting portion is located around the stud, and a mounting hole corresponding to the stud is provided on the cover plate, and a screw passes through the mounting hole and is screwed into the stud to fix the cover plate.

[0013] In one of the embodiments, two limiting members are provided in the tail end of the outer tube, and the two limiting members are respectively located on both sides of the stud.

[0014] In one embodiment, two fixing portions are disposed between each pair of the second through holes, and a groove is disposed between the two fixing portions.

[0015] In one embodiment, an insertion hole is provided at the center of the inner fixing part, a convex portion is provided on the surface of the cover plate facing the bottom, the convex portion is inserted into the insertion hole, a fourth through hole opposite to the third through hole is provided on the convex portion, and the limiting member passes through the inner fixing part.

[0016] In one of the embodiments, at least three latching protrusions are provided on the surface of the cover plate facing away from the bottom along the central axis thereof.

[0017] In one of the embodiments, at least a portion of the surface of the limiting member is provided with anti-slip teeth.

[0018] A telescopic photographic tripod comprises a handle assembly and a telescopic rod assembly, wherein the handle assembly comprises a mounting seat and at least three legs, the mounting seat is sleeved on the telescopic rod body, and the upper ends of at least three legs are pivotally connected to the mounting seat.

[0019] The beneficial effects of the additional technical features of the utility model will be described in the specific implementation section of this specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of the telescopic rod assembly in the first embodiment of the utility model;

[0021] Figure 2 for Figure 1 An exploded view of the telescopic rod assembly shown in;

[0022] Figure 3 for Figure 1 A front view of the telescopic rod assembly shown in;

[0023] Figure 4 For along Figure 3 Sectional view along the midline BB;

[0024] Figure 5 for Figure 4 A partial enlarged schematic diagram of point C in the middle;

[0025] Figure 6 for Figure 1 A perspective view of the tailstock of the telescopic rod assembly shown in one perspective;

[0026] Figure 7 for Figure 6 The front view of the tailstock shown in;

[0027] Figure 8 For along Figure 7 Sectional view along line AA;

[0028] Fig. 9 for Figure 1 A perspective view of the tailstock of the telescopic rod assembly shown in another perspective;

[0029] Fig.10 for Figure 1 A schematic diagram of the three-dimensional structure of the cover plate of the telescopic rod assembly;

[0030] Fig.11It is a three-dimensional diagram of the telescopic rod assembly in the second embodiment of the present utility model;

[0031] Fig.12 for Fig.11 An exploded view of the telescopic rod assembly shown in;

[0032] Fig.13 for Fig.11 A perspective view of the tailstock of the telescopic rod assembly shown in one perspective;

[0033] Fig.14 for Fig.11 A perspective view of the tailstock of the telescopic rod assembly shown in another perspective;

[0034] Fig.15 for Fig.11 A three-dimensional view of one viewing angle of the cover plate of the telescopic rod assembly shown in FIG.

[0035] Fig.16 The utility model embodiment 3 has Figure 1 or Fig.11 A perspective view of a telescopic photographic tripod with a telescopic rod assembly as shown;

[0036] Fig.17 for Fig.16 A stereoscopic diagram of an embodiment of a connecting rod of a telescopic photographic tripod;

[0037] Fig.18 for Fig.16 A stereoscopic view of another embodiment of a connecting rod of a telescopic photographic tripod.

[0038] Description of reference numerals: 100, telescopic rod assembly; 10, telescopic rod body; 11, outer tube; 111, head end of outer tube; 112, tail end of outer tube; 113, first through hole; 12, inner tube; 121, tail end of inner tube; 13, anti-slip sheet; 20, tail seat; 21, outer fixing portion; 211, second through hole; 212, accommodating groove; 22, bottom; 23, inner fixing portion; 231, third through hole; 232, plug hole; 24, avoidance groove; 25, groove; 26. slot; 27. spacer; 28. stud; 29. ​​mounting portion; 291. first groove; 30. stopper; 40. cover plate 40; 41. mounting hole; 42. second groove; 43. convex portion; 431. fourth through hole; 44. cover plate body; 45. clamping convex portion; 50. screw; 200. handle assembly; 400. mounting seat; 500. support foot; 600. connecting rod; 610. fixed shaft; 620. sliding shaft; 630. inclined portion. DETAILED DESCRIPTION

[0039] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described clearly and completely below in conjunction with the accompanying drawings. Obviously, the specific details described below are only part of the embodiments of the utility model, and the utility model can also be implemented in many other embodiments different from those described here. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the protection scope of the utility model.

[0040] In this document, when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time. The directional words such as front, back, top, and bottom involved are defined by the positions of the parts in the drawings and the positions of the parts relative to each other, just for the clarity and convenience of expressing the technical solution. It should be understood that the use of the directional words should not limit the scope of protection requested in this application.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0042] Embodiment 1

[0043] See also Figure 1-Figure 8 The telescopic rod assembly 100 in one embodiment of the utility model comprises: a telescopic rod body 10, a tailstock 20 and a stopper 30. The telescopic rod body 10 comprises an outer tube 11, at least one inner tube 12 located inside the outer tube, and a non-slip sheet 13 provided between the outer tube 11 and the inner tube 12 for providing a damping force for the relative sliding of the two. The outer tube 11 has a head end 111 and a tail end 112, and the tail end 112 of the outer tube 11 is provided with at least one pair of first through holes 113 arranged opposite to each other. The tailstock 20 is fixed to the tail end of the outer tube 11, and the tailstock 20 comprises an outer fixing portion 21, which is outer-mounted on the tail end of the outer tube 11, and the outer fixing portion 21 is provided with at least one pair of second through holes 211 opposite to the first through holes 113. The stopper 30 is located in the tail end 112 of the outer tube 11 and extends in the radial direction (i.e., perpendicular to the central axis direction of the outer tube 11). Both ends of the stopper 30 pass through the first through hole 113 and are inserted into the second through hole 211 to fix the outer fixing portion 21 to the tail end 112 of the outer tube 11. As an example, the stopper 30 is a pin.

[0044] In the telescopic rod assembly 100 of the present embodiment, a radially extending stopper 30 is provided in the tail end of the outer tube 11, and the two ends of the stopper 30 are respectively inserted into the corresponding first through hole 113 and the second through hole 211. The stopper 30, on the one hand, limits the inner tube 12 and the anti-slip sheet 13 to prevent the inner tube 12 and the anti-slip sheet 13 from sliding out of the tail end 112 of the outer tube 11, and on the other hand, fixes the outer fixing portion 21 of the tail seat 20 to the tail end of the outer tube 11. Since the position of the first through hole 113 can be as close as possible to the tail end face of the outer tube 11, the gap between the tail end face of the inner tube 12 and the tail end face of the outer tube 11 is greatly shortened, and the number of sections of the inner tube 12 can be saved, so that when the telescopic rod assembly obtains a preset extension length (i.e., the total length of the telescopic rod assembly when the inner tube is fully extended), the number of inner tube sections used is less, thereby reducing the production cost.

[0045] In one embodiment, see Figure 6 The outer fixing portion 21 is cylindrical, and the tailstock 20 further includes a bottom 22 disposed at the distal end of the outer fixing portion 21 (i.e., the end away from the tail end of the outer tube 11). This structural design provides a stable foundation and improves the overall stability of the telescopic rod. As an alternative, the outer fixing portion 21 can also be a plurality of positioning ribs spaced apart along the circumferential direction.

[0046] An inner bottom surface (the surface facing the outer tube) of the bottom 22 is provided with an inner fixing portion 23 extending into the rear end of the outer tube 11, and a third through hole 231 is provided on the inner fixing portion 23, which is opposite to the first through hole 113 and the second through hole 211, and the stopper 30 passes through the third through hole 231. The inner fixing portion 23 increases the contact area of ​​the stopper, improves the firmness of the stopper 30, and prevents it from falling off easily. Preferably, the surface of the stopper 30 located in the third through hole 231 is provided with anti-skid teeth (not shown in the figure). In this design, since the inner fixing portion 23 is generally made of plastic material, and the stopper 30 is generally made of metal material, the anti-skid teeth on the surface of the stopper 30 are tightly engaged with the inner wall of the third through hole 231, preventing the stopper 30 from falling off during use, thereby improving the service life of the product.

[0047] In one embodiment, see Figure 8 A bypass groove 24 is provided between the inner wall of the inner fixing portion 23 and the inner wall of the outer fixing portion 21 for bypassing the tail end of the inner tube 21. When the inner tube 12 is in the retracted state, the bypass groove 24 provides a space for the tail end of the inner tube 12, so that it can be further shortened, so that the length of the telescopic rod body in the axial direction is further shortened in the retracted state. This will help reduce the volume of the telescopic rod when not in use, making it easier for users to store and carry.

[0048] In one embodiment, two inner fixing parts 23 are disposed between each pair of second through holes 211, and the two inner fixing parts are separated by a groove 25. The groove 25 can reduce deformation of the inner fixing part 23 caused by shrinkage.

[0049] In one embodiment, a slot 26 is provided at the edge of the inner bottom surface of the bottom 22, and the tail end of the outer tube 11 is inserted into the slot 26. This design can increase the stability of the connection between the tailstock 20 and the tail end 112 of the outer tube 11.

[0050] In one embodiment, a spacer 27 is provided on the inner bottom surface of the bottom 22, and the slot 26 is formed between the spacer 27 and the inner wall of the outer fixing part 21. The spacer 27 can be composed of a plurality of convex points arranged at intervals along the circumferential direction, or can be composed of one or more arc segments. In this embodiment, two arc segments are used to form the spacer. This design makes the slot 26 more adaptable and can adapt to outer tubes 11 of various sizes, thereby improving the versatility of the telescopic rod.

[0051] In one embodiment, the tailstock 20 further includes a stud 28 disposed at the center of the bottom, and a mounting hole 41 corresponding to the stud is disposed on the cover plate 40. The screw 50 passes through the mounting hole 41 and is screwed into the stud 28 to fix the cover plate 40 on the tailstock 20. The tail end of the outer tube 11 includes two pairs of first through holes 113, and the outer fixing portion 21 includes two pairs of second through holes 211. Two stoppers 30 are respectively located on both sides of the stud 28, and the two ends of the stoppers 30 are respectively penetrated in the corresponding first through holes 113 and second through holes 211 to avoid the stud 28.

[0052] See also Fig. 9 and Fig.10 The tailstock 20 is provided with three (or more) mounting portions 29 around the central axis on one side facing the cover plate 40, and a semicircular first groove 291 is provided on the surface of each mounting portion facing away from the outer tube 11. The cover plate 40 is provided with a second groove 42 opposite to the first groove 291 on the surface facing the tailstock 20, and the second groove 291 cooperates with the first groove 42 to form an axial hole, and the fixed shaft 610 accommodating the connecting rod 600 is installed in the axial hole.

[0053] Embodiment 2

[0054] refer to Figures 11 to 15 , Embodiment 2 will be described. Components corresponding to those in the previous embodiments are indicated by the same names, and the description of the same points as above may be omitted in some cases. This embodiment will mainly describe the points different from the above components.

[0055] An inner fixing portion 23 extending toward the outer tube 11 is provided on the surface of the bottom 22 of the tail stock 20 facing the outer tube 11, and a plug hole 232 is provided at the center of the inner fixing portion 23. A convex portion 43 cooperating with the plug hole 232 is provided on the surface of the cover plate 40 facing the tail stock 20, and a fourth through hole 431 opposite to the third through hole 231 is provided on the convex portion 43. The convex portion 43 is inserted into the plug hole 232, and the limiting member 30 passes through the fourth through hole 431.

[0056] In the telescopic rod assembly 100 of the present embodiment, a radially extending stopper 30 is provided in the tail end of the outer tube 11, and the two ends of the stopper 30 are respectively inserted into the corresponding first through hole 113 and the second through hole 211. The stopper 30, on the one hand, limits the inner tube 12 and the anti-slip sheet 13 to prevent the inner tube 12 and the anti-slip sheet 13 from sliding out of the tail end 112 of the outer tube 11, and on the other hand, fixes the outer fixing portion 21 of the tail seat 20 to the tail end of the outer tube 11. Since the position of the first through hole 113 can be as close as possible to the tail end face of the outer tube 11, the gap between the tail end face of the inner tube 12 and the tail end face of the outer tube 11 is greatly shortened, and the number of sections of the inner tube 12 can be saved, so that when the telescopic rod assembly obtains a preset extension length (i.e., the total length of the telescopic rod assembly when the inner tube is fully extended), the number of inner tube sections used is less, thereby reducing the production cost. In addition, the stopper 30 passes through the tailstock 20, the cover plate 40 and the tail end of the outer tube 11 to lock the three together. Compared with the first embodiment, the screw driving step is omitted, the assembly process is reduced, and the cost is saved.

[0057] Three mounting parts are disposed on the outer fixing part 21 of the tailstock 20 . The mounting parts in this embodiment are receiving grooves 212 opened on the outer circumference of the outer fixing part 21 of the tailstock 20 . The first grooves 291 are located on both sides of the receiving grooves 212 .

[0058] The cover plate 40 includes a cover plate body 44, and three locking protrusions 45 are provided on the outer circumference of the cover plate body 44. After the cover plate 40 and the tailstock 20 are assembled, the locking protrusions 45 are locked into the bottom of the receiving groove 212. The second groove 42 is located at the connection between the cover plate body 44 and the locking protrusion 45, and the second groove 42 cooperates with the first groove 291 to form an axial hole for accommodating the fixed shaft 610 of the connecting rod 600.

[0059] Embodiment 3

[0060] The utility model provides a telescopic photographic tripod, such as Figure 16-18As shown, the telescopic photography tripod includes a handle assembly 200 and the aforementioned telescopic rod assembly 100, the handle assembly 200 includes a mounting seat 400 and at least three legs 500, the mounting seat 400 is sleeved on the telescopic rod body, and the upper ends of the at least three legs 500 are pivotally connected to the mounting seat 400. The handle assembly 200 includes at least three connecting rods 600, one end of the at least three connecting rods 600 is pivotally connected to the mounting seat 400 through a fixed rotating shaft 610, and the other end is pivotally connected to the tail stock 20 through a sliding rotating shaft 620.

[0061] In one embodiment of the present embodiment, the tail end of the connecting rod 600 is a fork-shaped structure, and a fixed shaft 610 is provided in the middle of the fork-shaped structure. The fixed shaft 610 can be accommodated in the shaft hole formed by the second groove 42 and the first groove 291 in the first embodiment.

[0062] In another embodiment of the present embodiment, the tail end of the connecting rod 600 is provided with an inclined portion 630, and the fixed rotating shaft 610 is arranged on the inclined portion 630, and the fixed rotating shaft 610 is accommodated in the shaft hole formed by the second groove 42 and the first groove 291 in the second embodiment. When the telescopic photography tripod is in the folded state, the inclined portion 630 is accommodated in the accommodating groove 212, so that the radial direction of the telescopic photography tripod is smaller after the supporting legs 220 are folded.

[0063] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A telescopic rod assembly, comprising: The telescopic rod body comprises an outer tube and at least one section of an inner tube disposed inside the outer tube; A tailstock, fixedly connected to the tail end of the outer tube; It is characterized in that at least one pair of first through holes arranged opposite to each other is provided on the tail end of the outer tube, the tail seat includes an external fixing portion, the external fixing portion is sleeved on the tail end of the outer tube, at least one pair of second through holes opposite to the first through holes is provided on the external fixing portion, and at least one radially extending limiter is provided in the tail end of the outer tube, and both ends of the limiter pass through the pair of first through holes respectively and then are inserted into the corresponding pair of second through holes.

2. The telescopic rod assembly according to claim 1, characterized in that: The tailstock includes a bottom located at the distal end of the outer fixing portion, and at least one inner fixing portion extending toward the outer tube side is provided on the surface of the bottom facing the outer tube, an avoidance groove for avoiding the inner tube is provided between the inner fixing portion and the outer fixing portion, and at least one third through hole opposite to at least one pair of the second through holes on the outer fixing portion is provided on the inner fixing portion, and the limiting member passes through the third through hole.

3. The telescopic rod assembly according to claim 2, characterized in that: At least three mounting portions for mounting a connecting rod are arranged around the central axis on the bottom, and a semicircular first groove is arranged on the surface of each mounting portion facing away from the outer tube; a cover plate is also included, which is located on the side of the bottom facing away from the outer tube, and a second groove corresponding to the first groove is arranged on the surface facing the bottom, and the second groove cooperates with the first groove to form an axial hole for cooperating with the rotating shaft on the connecting rod.

4. The telescopic rod assembly according to claim 3, characterized in that: A stud extending toward the outer tube is provided at the center of the bottom, the mounting portion is located around the stud, and mounting holes corresponding to the stud are provided on the cover plate. Screws pass through the mounting holes and are screwed into the studs to fix the cover plate.

5. The telescopic rod assembly according to claim 4, characterized in that: Two limiting members are arranged in the tail end of the outer tube, and the two limiting members are respectively located on both sides of the stud.

6. The telescopic rod assembly according to claim 5, characterized in that: Two fixing portions are arranged between each pair of the second through holes, and a groove is arranged between the two fixing portions.

7. The telescopic rod assembly according to claim 3, characterized in that: A plug hole is provided at the center of the inner fixing part, a convex portion is provided on the surface of the cover plate facing the bottom, the convex portion is inserted into the plug hole, a fourth through hole opposite to the third through hole is provided on the convex portion, and the limiting member passes through the inner fixing part.

8. The telescopic rod assembly according to claim 3, characterized in that: At least three latching protrusions are arranged on the surface of the cover plate facing away from the bottom along the central axis thereof.

9. The telescopic rod assembly according to claim 2, characterized in that: At least part of the surface of the limiting member is provided with anti-slip teeth.

10. A telescopic photographic tripod, characterized in that: It comprises a handle assembly and a telescopic rod assembly as claimed in any one of claims 1 to 9, wherein the handle assembly comprises a mounting seat and at least three legs, the mounting seat is sleeved on the telescopic rod body, and the upper ends of at least three legs are pivotally connected to the mounting seat.

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