CN219318129U

CN219318129U - Telescopic component and shooting support

Info

Publication number: CN219318129U
Application number: CN202320024617.1U
Authority: CN
Inventors: 陈伟豪
Original assignee: Shenzhen Luxury United Technology Co ltd
Current assignee: Shenzhen Luxury United Technology Co ltd
Priority date: 2022-01-01
Filing date: 2023-01-03
Publication date: 2023-07-07
Anticipated expiration: 2033-01-03

Abstract

The utility model provides a telescopic assembly, which relates to the technical field of supporting devices and comprises a first cylinder, a second cylinder and a first positioning piece, wherein the first cylinder is provided with a first storage cavity, and is provided with at least 1 group of third positioning parts; the second cylinder body is sleeved in the first accommodating cavity of the first cylinder body in a sliding manner; the first positioning piece is arranged on the second cylinder body, the first positioning piece is provided with at least 1 fourth positioning part corresponding to at least 1 group of third positioning parts, and each fourth positioning part can be matched with the corresponding third positioning part in the process that the second cylinder body slides relative to the first cylinder body so as to position the second cylinder body on the first cylinder body; the third positioning part is a groove, and the fourth positioning part is a bulge. According to the telescopic component, each fourth positioning part can be matched with the corresponding third positioning part to enable the second cylinder to be positioned on the first cylinder, so that when the telescopic component supports the power utilization main body, the first cylinder is not easy to slide relatively relative to the second cylinder.

Description

Telescopic component and shooting support

Technical Field

The utility model relates to the technical field of supporting devices, in particular to a telescopic assembly.

Background

The supporting device is a device for supporting an electric main body of a fan head, a lamp, a photographing terminal, etc., the photographing terminal includes a mobile phone, a tablet, a camera, etc., and the supporting device generally includes a support bar, a connecting member, etc., for example, the supporting device may be a part of a photographing bracket, a fan, a desk lamp, etc.

In the supporting device in the prior art, the supporting rod is usually a telescopic rod, and adjacent telescopic joints in the telescopic rod form a telescopic assembly, but the telescopic assembly in the existing telescopic rod has the defect that the adjacent telescopic joints easily produce relative sliding when carrying the power utilization main body.

Disclosure of Invention

In view of the shortcomings and drawbacks of the prior art, a first object of the present utility model is to provide a telescoping assembly.

The embodiment of the utility model provides a telescopic assembly which is used for supporting an electricity utilization main body and comprises a first barrel, a second barrel and a first positioning piece, wherein the first barrel is provided with a first storage cavity, and at least 1 group of third positioning parts are arranged on the first barrel; the second cylinder body is sleeved in the first containing cavity of the first cylinder body in a sliding manner; the first positioning piece is arranged on the second cylinder body, the first positioning piece is provided with at least 1 fourth positioning part corresponding to the at least 1 group of third positioning parts, and each fourth positioning part can be matched with the corresponding third positioning part in the process of sliding the second cylinder body relative to the first cylinder body so as to position the second cylinder body on the first cylinder body; the third positioning part is a groove, and the fourth positioning part is a bulge; alternatively, the third positioning portion is a protrusion, and the fourth positioning portion is a groove.

Preferably, the first positioning member extends to at least 1 first cantilever, each fourth positioning portion is correspondingly provided on each first cantilever, the first cantilever is configured to apply an elastic force to the fourth positioning portion so that the fourth positioning portion is matched with the third positioning portion, the telescopic assembly has a first deformation space, and the first deformation space is used as a yielding space of the first cantilever in the process that the fourth positioning portion is separated from the third positioning portion.

Preferably, the first cantilever is provided with a first pressing protrusion, and in the process that the fourth positioning part is matched with the third positioning part, the first pressing protrusion is pressed against the second cylinder body to press the first cantilever.

Preferably, the fourth positioning portion is located between the first pressing protrusion and the initial end of the first cantilever.

Preferably, the first positioning piece is located between the first cylinder and the second cylinder, the first deformation space is located between the first cantilever and the outer wall of the second cylinder, and in the process that the fourth positioning portion is matched with the third positioning portion, the first pressing protrusion abuts against the outer wall of the second cylinder.

Preferably, the first positioning member is provided with a first mounting groove in a penetrating manner, the first cantilever is formed by extending the edge of the first mounting groove, and the first cantilever is accommodated in the first mounting groove.

Preferably, in the case that the third positioning portions are grooves, each group of the third positioning portions is a single groove or a plurality of grooves arranged at intervals, and each of the fourth positioning portions is a single protrusion; in the case that the third positioning portions are protrusions, each group of the third positioning portions is a single protrusion or a plurality of protrusions arranged at intervals, and each fourth positioning portion is a single groove.

Preferably, the first cylinder has at least one first inner wall, and at least one group of the third positioning portions are respectively and correspondingly arranged on at least one first inner wall.

Preferably, in the case that the third positioning portion is a groove, a longitudinal section of the third positioning portion is in an open shape, and the longitudinal section passes through an opening of the third positioning portion along a telescoping direction of the telescoping assembly; in the case that the fourth positioning portion is a groove, a longitudinal section of the fourth positioning portion is in an open shape, and the longitudinal section extends in the expansion and contraction direction of the expansion and contraction assembly and passes through the opening of the third positioning portion.

Preferably, in the case where the third positioning portion is a groove, a longitudinal cross-sectional shape of the third positioning portion is an arc shape; in the case where the fourth positioning portion is a groove, the longitudinal cross-sectional shape of the fourth positioning portion is an arc shape.

Preferably, the shape of the fourth positioning part is matched with that of the third positioning part;

the first positioning piece is of a shell-shaped structure which is wrapped or partially wrapped by the first cylinder body, and the first positioning piece is integrally formed or is in two mutually separable parts; in the process that the second cylinder body slides relative to the first cylinder body, the first positioning piece slides along the inner wall of the first containing cavity;

the first positioning piece is positioned between the first cylinder body and the second cylinder body, and the shape of the outer wall of the first positioning piece is matched with the shape of the inner wall of the first storage cavity;

the number of the third positioning parts is 2, the 2 groups of the third positioning parts are respectively arranged on two opposite sides of the inner wall of the first storage cavity, and the number of the second positioning parts is 2;

the first locating piece is fixedly arranged on the second cylinder body.

The embodiment of the utility model provides a telescopic assembly which is used for supporting an electricity utilization main body and comprises a first cylinder, a second cylinder and a first positioning piece, wherein the first cylinder is provided with a first storage cavity; the second cylinder body is sleeved in the first containing cavity of the first cylinder body in a sliding manner; the first locating piece is arranged on the second cylinder body, the first locating piece is provided with at least one fourth locating part, and the fourth locating part can act on the first cylinder body to enable the second cylinder body to be located on the first cylinder body.

Preferably, the first positioning member extends with at least one first cantilever arm, each first cantilever arm being provided with a fourth positioning portion, the first cantilever arm being configured to apply an elastic force to the fourth positioning portion so that the fourth positioning portion acts on the first cylinder.

Preferably, the first cantilever is provided with a first pressing protrusion, and when the fourth positioning part acts on the first cylinder, the first pressing protrusion presses against the first cylinder to press the first cantilever; the fourth positioning part is positioned between the first pressing protrusion and the initial end of the first cantilever; the first locating piece is positioned between the first cylinder body and the second cylinder body, a first mounting groove is formed in a penetrating manner by the first locating piece, the first cantilever is formed by extending the edge of the first mounting groove, and the first cantilever is accommodated in the first mounting groove; the first positioning piece is positioned between the first cylinder body and the second cylinder body.

Preferably, the first cylinder body has at least one first inner wall, the at least one fourth positioning portion acts on the at least one first inner wall respectively, and the fourth positioning portion is in friction contact with the corresponding first inner wall so that the second cylinder body can be positioned on the first cylinder body.

The embodiment of the utility model also provides a shooting support, which comprises a clamp and a first rod body, wherein the clamp is used for loading the electronic terminal, the clamp is arranged on the first rod body, and the first rod body is the telescopic assembly.

According to the telescopic component, each fourth positioning part can be matched with the corresponding third positioning part so that the second cylinder body is positioned on the first cylinder body, the third positioning parts are grooves, and the fourth positioning parts are bulges; or, the third positioning part is a bulge, the fourth positioning part is a groove, or the fourth positioning part acts on the first cylinder, so that when the telescopic component supports the power utilization main body, the first cylinder is not easy to slide relative to the second cylinder, and the second cylinder can be stably positioned on the first cylinder.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic diagram of one implementation of a telescoping assembly of an embodiment of the present utility model;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

FIG. 3 is a view of the telescoping assembly of FIG. 2 after a second cylinder has been slid a distance relative to the first cylinder;

FIG. 4 is a schematic structural view of another implementation of a telescoping assembly of an embodiment of the present utility model;

FIG. 5 is an enlarged view of the structure at B in FIG. 4;

FIG. 6 is a schematic structural view of another implementation of a telescoping assembly of an embodiment of the present utility model;

FIG. 7 is an enlarged view of the structure at N in the telescoping assembly shown in FIG. 6;

fig. 8 is a schematic structural view of one implementation of a photographing bracket based on the telescopic assembly shown in fig. 1.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explanation of the present utility model and is not to be construed as limiting the present utility model, and those skilled in the art can make modifications to the present embodiment which do not contribute to the utility model as required after reading the present specification, but are protected by the patent laws within the scope of the appended claims.

Referring to fig. 1 to 5, an embodiment of the present utility model proposes a telescopic assembly for supporting an electricity-using main body 3, including a first cylinder 210, a second cylinder 220, and a first positioning member 230, the first cylinder 210 being provided with a first receiving cavity 201, the first cylinder 210 being provided with at least 1 set of third positioning portions 213; the second cylinder 220 is slidably sleeved in the first accommodating cavity 201 of the first cylinder 210; the first positioning element 230 is disposed on the second cylinder 220, the first positioning element 230 has at least 1 fourth positioning portion 235 corresponding to at least 1 set of third positioning portions 213, and during the sliding process of the second cylinder 220 relative to the first cylinder 210, each fourth positioning portion 235 can be matched with the corresponding third positioning portion 213 so as to position the second cylinder 220 on the first cylinder 210; the third positioning part 213 is a groove, and the fourth positioning part 235 is a protrusion; alternatively, the third positioning portion 213 is a protrusion and the fourth positioning portion 235 is a groove.

In the telescopic assembly according to the embodiment of the present utility model, each fourth positioning portion 235 may be matched with the corresponding third positioning portion 213 so that the second cylinder 220 is positioned on the first cylinder 210, and the third positioning portion 213 is a groove, and the fourth positioning portion 235 is a protrusion; alternatively, the third positioning portion 213 is a protrusion, and the fourth positioning portion 235 is a groove, so that when the telescopic unit supports the power consumption main body 3, the first cylinder 210 is less likely to slide relative to the second cylinder 220, and the second cylinder 220 can be stably positioned on the first cylinder 210.

The power consumption main body 3 may be an electronic terminal 3 such as a mobile phone, a tablet, a camera, or a fan, a lamp, or the like.

Illustratively, the second cylinder 220 is slidably disposed in the first receiving cavity 201 of the first cylinder 210, and the length of the telescopic assembly can be extended or shortened when the second cylinder 220 slides relative to the first cylinder 210.

Illustratively, the outer circumference of the second cylinder 220 is a stretching surface (cylindrical surface, prismatic surface, elliptical cylindrical surface, rounded rectangular cylindrical surface, etc.), and the first receiving cavity 201 is a stretching groove (cylindrical groove, prismatic groove, elliptical cylindrical groove, rounded rectangular cylindrical groove, etc.) adapted to the outer circumference of the second cylinder 220. The stretching surface is a side surface of the stretching body.

Illustratively, the first positioning member 230 is integrally or detachably disposed on the first cylinder 210.

Illustratively, the first locating member 230 is limitedly disposed on the first cylinder 210.

Illustratively, the second cylinder 220 is provided with 1, 2, 3, 4 sets of third positioning portions 213, etc., and accordingly, the number of fourth positioning portions 235 may be 1, 2, 3, 4, etc., i.e., the number of sets of third positioning portions 213 is the same as the number of fourth positioning portions 235.

When the pulling force or pushing force received by the second cylinder 220 is greater than the matching resistance of the third positioning portion 213 and the fourth positioning portion 235, the third positioning portion 213 can be separated from the fourth positioning portion 235, so that the second cylinder 220 slides relative to the first cylinder 210, and the length is adjusted.

In some implementations of the embodiment of the present utility model, referring to fig. 2, 5, etc., the first positioning member 230 extends with at least 1 first cantilever 232, each fourth positioning portion 235 is correspondingly disposed on each first cantilever 232, the first cantilever 232 is configured to apply an elastic force to the fourth positioning portion 235 so that the fourth positioning portion 235 cooperates with the third positioning portion 213, and the telescopic assembly has a first deformation space 202, and the first deformation space 202 serves as a relief space for the first cantilever 232 during the process that the fourth positioning portion 235 is separated from the third positioning portion 213. This has the advantage that, on the one hand, the fourth positioning portion 235 is allowed to be tightly fitted with the third positioning portion 213, and, on the other hand, the first cantilever 232 is allowed to be elastically deformed when the second cylinder 220 slides with respect to the first cylinder 210, so that the fourth positioning portion 235 can be disengaged from the third positioning portion 213.

In some implementations of the embodiment of the present utility model, referring to fig. 2 and 5, the first cantilever 232 is provided with a first pressing protrusion 232a, and during the process of the fourth positioning portion 235 being mated with the third positioning portion 213, the first pressing protrusion 232a presses against the second cylinder 220 to press the first cantilever 232. The advantage of this arrangement is that the fourth detent 235 fits tightly to the third detent 213.

Illustratively, the process of fitting the fourth positioning portion 235 to the third positioning portion 213 refers to a process from partially fitting the fourth positioning portion 235 to fully fitting the third positioning portion 213 (or refers to a process from fully fitting the second positioning portion 231 to partially fitting the first positioning portion 221).

Illustratively, in the process of the fourth positioning portion 235 being mated with the third positioning portion 213, the first pressing protrusion 232a abuts against the first cylinder 210 to press the first cantilever 232, which may refer to that the first pressing protrusion 232a abuts against the first cylinder 210 in the whole process, or may refer to that the first pressing protrusion 232a abuts against the first cylinder 210 in the part process.

Illustratively, during the process of the fourth positioning portion 235 being mated with the third positioning portion 213, the first pressing protrusion 232a is pressed against the first cylinder 210 all the time, and because the third positioning portion 213 and the fourth positioning portion 235 are in groove-to-protrusion mating, the first pressing protrusion 232a is pressed against the first cylinder 210 more tightly when the fourth positioning portion 235 is partially mated with the third positioning portion 213.

Specifically, the first pressing protrusion 232a presses against the inner wall of the first housing chamber 201.

Illustratively, the first cantilever 232 may extend at an inner edge of the first locator 230 and the first cantilever 232 may extend at an outer edge of the first locator 230.

In some implementations of embodiments of the utility model, referring to fig. 2, 5, etc., the fourth locating portion 235 is located between the first pressing protrusion 232a and the initial end of the first cantilever 232. This has the advantage of making the arm of the first cantilever 232 longer, and the first pressing projection 232a can apply a greater pressing force to the first positioning portion 221 of the first cantilever 232.

Illustratively, the initial end of the first cantilever 232 refers to the initial end of the first cantilever 232 that is initially extended by the first positioning member 230.

Illustratively, the second detent 231 may be located at an end of the first cantilever 232.

In some implementations of the embodiment of the present utility model, referring to fig. 2, 5, etc., the first positioning member 230 is located between the first cylinder 210 and the second cylinder 220, the first deformation space 202 is located between the first cantilever 232 and the outer wall of the second cylinder 220, and the first pressing protrusion 232a abuts against the outer wall of the second cylinder 220 during the process of the fourth positioning portion 235 being mated with the third positioning portion 213. This has the advantage of making the telescopic assembly more compact.

In some implementations of the embodiments of the present utility model, referring to fig. 2, 5, etc., the first positioning member 230 is provided with a first mounting groove 203 therethrough, the first cantilever 232 is formed by extending an edge of the first mounting groove 203, and the first cantilever 232 is accommodated in the first mounting groove 203. This has the advantage of making the first positioning member 230 more compact.

In some implementations of embodiments of the utility model, referring to fig. 2, where the third positioning portions 213 are slots, each set of third positioning portions 213 is a single slot or a plurality of slots arranged at intervals, and each fourth positioning portion 235 is a single protrusion;

for example, referring to fig. 5, in the case where the third positioning portions 213 are protrusions, each group of the third positioning portions 213 is a single protrusion or a plurality of protrusions arranged at intervals, and each of the fourth positioning portions 235 is a single groove. The advantage of setting up like this is, conveniently sets up the position number that flexible subassembly can fix a position.

Specifically, the number of grooves or protrusions of each set of the third positioning portion 213 determines the number of positionable lengths of the telescopic assembly, i.e., the number of positionable lengths of the telescopic assembly is the same as the number of grooves or protrusions of each set of the first positioning portion 221.

Illustratively, where each set of third detents 213 is a single slot or single protrusion, the telescoping assembly has only one positionable length.

Illustratively, where each set of third detents 213 is a plurality of spaced apart slots/protrusions, the telescoping assembly has a plurality of positionable lengths.

In some implementations of the present utility model, the first cylinder 210 has at least one first inner wall, and at least one set of third positioning portions 213 are respectively disposed on the at least one first inner wall.

Specifically, the number of sets of the first inner wall is the same as the number of sets of the third positioning portion 213.

Illustratively, the first cylinder 210 has 1 set, 2 sets, 3 sets, 4 sets, etc. of first inner walls.

In some implementations of the embodiments of the present utility model, referring to fig. 2, 5, etc., in the case where the third positioning portion 213 is a groove, the longitudinal section of the third positioning portion 213 is in an open shape, and the longitudinal section is along the expansion and contraction direction of the expansion and contraction assembly and passes through the opening of the third positioning portion 213; in the case where the fourth positioning portion 235 is a groove, the longitudinal section of the fourth positioning portion 235 is open, and the longitudinal section extends in the expansion and contraction direction of the expansion and contraction assembly and passes through the opening of the third positioning portion 213.

Specifically, the groove is "open" in the sense that the groove has an opening, and the cross-sectional area of the bottom end of the groove gradually increases to the open end.

Illustratively, the telescoping assembly has a first central axis 2b, with a longitudinal section along the first central axis 2b and passing through the opening of the third positioning portion 213.

Illustratively, the longitudinal cross-sectional shape of the third positioning portion 213 may be an open trapezoid, triangle, polygon, or the like.

In some implementations of the embodiments of the present utility model, referring to fig. 2, 5, etc., in the case where the third positioning portion 213 is a groove, the longitudinal cross-sectional shape of the third positioning portion 213 is an arc shape; when the fourth positioning portion 235 is a groove, the longitudinal cross-sectional shape of the fourth positioning portion 235 is an arc shape.

In some implementations of embodiments of the utility model, referring to fig. 2, 5, etc., the shape of the fourth positioning portion 235 matches the shape of the third positioning portion 213, e.g., the third positioning portion 213 is an arcuate slot, the fourth positioning portion 235 is a matching arcuate protrusion, or the fourth positioning portion 235 is an arcuate slot, the third positioning portion 213 is a matching arcuate protrusion.

In some implementations of the embodiment of the present utility model, the first positioning member 230 is a shell-like structure surrounded or partially surrounded by the first cylinder 210, and the first positioning member 230 is integrally formed or the first positioning member 230 is formed as two separable parts; during the sliding of the second cylinder 220 with respect to the first cylinder 210, the first positioning member 230 slides along the inner wall of the first receiving chamber 201.

Illustratively, the two portions of the first positioning member 230 are symmetrically arranged, the two portions of the first positioning member 230 have the same shape, the two portions of the first positioning member 230 respectively have a semi-surrounding shape, and the two portions of the first positioning member 230 respectively form a partial surrounding for the second cylinder 220, which has the advantage of convenient manufacture and installation.

In some implementations of the embodiments of the present utility model, referring to fig. 2, 5, etc., the first positioning member 230 is located between the first cylinder 210 and the second cylinder 220, and the shape of the outer wall of the first positioning member 230 is adapted to the shape of the inner wall of the first receiving cavity 201. This has the advantage that the first positioning member 230 is better able to fill the gap between the first cylinder 210 and the second cylinder 220, making the second cylinder 220 more stable when sliding with respect to the first cylinder 210.

In some implementations of the embodiment of the present utility model, referring to fig. 2, 5, etc., the third positioning portions 213 are 2 groups, and the 2 groups of third positioning portions 213 are respectively disposed on two opposite sides of the inner wall of the first accommodating cavity 201, and the number of second positioning portions 231 is 2. The advantage of this arrangement is that the forces between the first cylinder 210, the second cylinder 220, and the first positioning member 230 are more uniform, so that the second cylinder 220 is more stable when sliding relative to the first cylinder 210.

Illustratively, the cross-section of the first cylinder 210, the second cylinder 220, the first positioning member 230 is circular, polygonal, rounded polygonal, chamfered polygonal, etc. For example, the cross sections of the first cylinder 210, the second cylinder 220 and the first positioning member 230 are rectangular, rounded rectangular and chamfered rectangular, 2 sets of third positioning portions 213 are respectively disposed on two opposite sides of the

second cylinder

220, and 2 fourth positioning portions 235 are respectively disposed on two opposite sides of the first positioning member 230.

In some implementations of the embodiment of the present utility model, the first positioning member 230 is fixedly disposed on the second cylinder 220. For example, the first positioning member 230 is welded and adhered to the second cylinder 220, for example, the first positioning member 230 is integrally provided on the second cylinder 220, and for example, the first positioning member 230 is fastened to the second cylinder 220 by a fastener.

The embodiment of the utility model also provides another telescopic assembly, referring to fig. 2, 5, 7, etc., for supporting the power consumption main body 3, including a first cylinder 210, a second cylinder 220, and a first positioning member 230, where the first cylinder 210 is provided with a first storage cavity 201; the second cylinder 220 is slidably sleeved in the first accommodating cavity 201 of the first cylinder 210; the first positioning member 230 is disposed on the second cylinder 220, at least one first cantilever arm 232 extends from the first positioning member 230, each first cantilever arm 232 is provided with a fourth positioning portion 235, the fourth positioning portion 235 can act on the first cylinder 210 to position the second cylinder 220 on the first cylinder 210, and the first cantilever arm 232 is configured to apply an elastic force to the fourth positioning portion 235 to cause the fourth positioning portion 235 to act on the first cylinder 210.

Illustratively, the second cylinder 220 may be a solid or hollow cylinder.

Illustratively, the first positioning member 230 is integrally or detachably disposed on the second cylinder 220.

For example, referring to fig. 6, 7, etc., the first cylinder 210 has at least one first inner wall 208, and the fourth positioning portions 235 of the at least one first cantilever 232 respectively act on the at least one first inner wall 208, and the fourth positioning portions 235 are in frictional contact with the first inner wall 208, so that the second cylinder 220 can be positioned on the first cylinder 210.

1-5, the first cylinder 210 is provided with a first receiving cavity 201, and the first cylinder 210 is provided with at least 1 group of third positioning portions 213; the second cylinder 220 is slidably sleeved in the first accommodating cavity 201 of the first cylinder 210; the first positioning element 230 is disposed on the second cylinder 220, the first positioning element 230 has at least 1 fourth positioning portion 235 corresponding to at least 1 set of third positioning portions 213, and during the sliding process of the second cylinder 220 relative to the first cylinder 210, each fourth positioning portion 235 can be matched with the corresponding third positioning portion 213 so as to position the second cylinder 220 on the first cylinder 210; the third positioning part 213 is a groove, and the fourth positioning part 235 is a protrusion; alternatively, the third positioning portion 213 is a protrusion and the fourth positioning portion 235 is a groove.

With reference to fig. 2, 5, etc., each fourth positioning portion 235 may be matched with the corresponding third positioning portion 213 so that the second cylinder 220 is positioned on the first cylinder 210, the third positioning portion 213 is a groove, and the fourth positioning portion 235 is a protrusion; alternatively, the third positioning portion 213 is a protrusion, and the fourth positioning portion 235 is a groove, so that when the telescopic unit supports the power consumption main body 3, the first cylinder 210 is less likely to slide relative to the second cylinder 220, and the second cylinder 220 can be stably positioned on the first cylinder 210.

Illustratively, the first positioning member 230 extends with at least 1 first cantilever 232, each fourth positioning portion 235 is correspondingly disposed on each first cantilever 232, and the first cantilever 232 is configured to apply an elastic force to the fourth positioning portion 235 so that the fourth positioning portion 235 cooperates with the third positioning portion 213, and the telescopic assembly has a first deformation space 202, and the first deformation space 202 serves as a yielding space of the first cantilever 232 during the process that the fourth positioning portion 235 is separated from the third positioning portion 213. This has the advantage that, on the one hand, the fourth positioning portion 235 is allowed to be tightly fitted with the third positioning portion 213, and, on the other hand, the first cantilever 232 is allowed to be elastically deformed when the second cylinder 220 slides with respect to the first cylinder 210, so that the fourth positioning portion 235 can be disengaged from the third positioning portion 213.

The first cantilever 232 is provided with a first pressing protrusion 232a, and in the process that the fourth positioning portion 235 is matched with the third positioning portion 213, the first pressing protrusion 232a abuts against the second cylinder 220 to press the first cantilever 232. The advantage of this arrangement is that the fourth detent 235 fits tightly to the third detent 213.

Illustratively, the fourth locating portion 235 is located between the first abutment protrusion 232a and the initial end of the first cantilever 232. This has the advantage of making the arm of the first cantilever 232 longer, and the first pressing projection 232a can apply a greater pressing force to the first positioning portion 221 of the first cantilever 232.

The first positioning member 230 is disposed between the first cylinder 210 and the second cylinder 220, the first deformation space 202 is disposed between the first cantilever 232 and the outer wall of the second cylinder 220, and the first pressing protrusion 232a abuts against the outer wall of the second cylinder 220 during the process of the fourth positioning portion 235 being engaged with the third positioning portion 213. This has the advantage of making the telescopic assembly more compact.

Illustratively, the first positioning member 230 is provided with a first mounting groove 203 therethrough, and the first cantilever 232 is formed by extending an edge of the first mounting groove 203, and the first cantilever 232 is accommodated in the first mounting groove 203. This has the advantage of making the first positioning member 230 more compact.

Illustratively, where the third locating portions 213 are slots, each set of third locating portions 213 is a single slot or a plurality of spaced slots, each fourth locating portion 235 is a single protrusion; in the case where the third positioning portions 213 are protrusions, each set of the third positioning portions 213 is a single protrusion or a plurality of protrusions arranged at intervals, and each of the fourth positioning portions 235 is a single groove. The advantage of setting up like this is, conveniently sets up the position number that flexible subassembly can fix a position.

The first cylinder 210 has at least one first inner wall, and at least one set of third positioning portions 213 are respectively disposed on the at least one first inner wall.

Illustratively, the third positioning portion 213 has an open longitudinal cross-section, which extends along the expansion and contraction direction of the expansion and contraction assembly and passes through the opening of the third positioning portion 213; in the case where the fourth positioning portion 235 is a groove, the longitudinal section of the fourth positioning portion 235 is open, and the longitudinal section extends in the expansion and contraction direction of the expansion and contraction assembly and passes through the opening of the third positioning portion 213.

Illustratively, the longitudinal cross-sectional shape of the third positioning portion 213 is arcuate; when the fourth positioning portion 235 is a groove, the longitudinal cross-sectional shape of the fourth positioning portion 235 is an arc shape.

Illustratively, the fourth locating portion 235 is shaped to match the third locating portion 213, e.g., the third locating portion 213 is an arcuate slot, the fourth locating portion 235 is a matching arcuate projection, or the fourth locating portion 235 is an arcuate slot, and the third locating portion 213 is a matching arcuate projection.

Illustratively, the first positioning member 230 is a shell-like structure surrounded or partially surrounded by the first cylinder 210, and the first positioning member 230 is integrally formed or the first positioning member 230 has two separable parts; during the sliding of the second cylinder 220 with respect to the first cylinder 210, the first positioning member 230 slides along the inner wall of the first receiving chamber 201.

Illustratively, the two portions 230a of the first positioning member 230 are symmetrically arranged, the two portions 230a of the first positioning member 230 are identical in shape, the two portions 230a of the first positioning member 230 respectively present a semi-surrounding shape, and the two portions 230a of the first positioning member 230 respectively form a partial surrounding for the second cylinder 220, which has the advantage of convenient manufacture and installation.

Illustratively, the first positioning member 230 is located between the first cylinder 210 and the second cylinder 220, and the shape of the outer wall of the first positioning member 230 is adapted to the shape of the inner wall of the first receiving cavity 201. This has the advantage that the first positioning member 230 is better able to fill the gap between the first cylinder 210 and the second cylinder 220, making the second cylinder 220 more stable when sliding with respect to the first cylinder 210.

Illustratively, the third positioning portions 213 are 2 groups, and the 2 groups of third positioning portions 213 are respectively disposed on two opposite sides of the inner wall of the first accommodating cavity 201, and the number of second positioning portions 231 is 2. The advantage of this arrangement is that the forces between the first cylinder 210, the second cylinder 220, and the first positioning member 230 are more uniform, so that the second cylinder 220 is more stable when sliding relative to the first cylinder 210.

second cylinder

Illustratively, the first positioning member 230 is fixedly disposed on the second cylinder 220. For example, the first positioning member 230 is welded and adhered to the second cylinder 220, for example, the first positioning member 230 is integrally provided on the second cylinder 220, and for example, the first positioning member 230 is fastened to the second cylinder 220 by a fastener.

In some implementations of the embodiment of the present utility model, the first cantilever 232 is provided with a first pressing protrusion 232a, and when the fourth positioning portion 235 acts on the first cylinder 210, the first pressing protrusion 232a presses against the first cylinder 210 to press the first cantilever 232.

In some implementations of embodiments of the utility model, the fourth detent 235 is located between the first abutment protrusion 232a and the initial end of the first cantilever 232.

In some implementations of the embodiment of the present utility model, the first positioning member 230 is located between the first cylinder 210 and the second cylinder 220, the first positioning member 230 is provided with a first mounting groove 203 therethrough, the first cantilever 232 is formed by extending from an edge of the first mounting groove 203, and the first cantilever 232 is accommodated in the first mounting groove 203.

The first positioning member 230 is located between the first cylinder 210 and the second cylinder 220.

Referring to fig. 8, the embodiment of the utility model further provides a shooting support, which comprises a clamp 1 and a first rod body 2, wherein the clamp 1 is used for loading an electronic terminal 3, the clamp 1 is mounted on the first rod body 2, and the first rod body 2 is the telescopic assembly.

The electronic terminal 3 may be a cell phone, a tablet, a camera, or the like, for example.

Illustratively, the clamp 1 has two clamping portions 1a (receivable or openable) clamping the electronic terminal 3, the two clamping portions 1a (receivable or openable) being adjustable in clamping width so as to adapt to different sizes of electronic terminals 3.

Illustratively, the clamp 1 has a magnetic attraction portion that magnetically attracts the electronic terminal 3, and the magnetic attraction portion magnetically attracts the electronic terminal 3 to thereby realize loading of the electronic terminal 3.

Illustratively, the clamp 1 has a fixing portion for fixing the electronic terminal 3, which may fix the electronic terminal 3 to realize a means for the electronic terminal 3, for example, the fixing portion may be a screw.

Illustratively, the fixture 1 has a suction cup for sucking the electronic terminal 3, the suction cup may be an air bag with an opening, and the suction cup exhaust gas may be sucked to the electronic terminal 3, so as to load the electronic terminal 3.

The photographing support may be a handheld self-photographing support, for example, which may be used by holding the first stick body 2 in the hand.

Illustratively, the first rod body 2 of the photographing bracket may be mounted to a supporting part, which may be a desktop bracket, a ground bracket, a vehicle-mounted bracket, etc., and the supporting part may be a supporting plate, a tripod, a magnetic attraction part, an air suction cup, etc.; the support portion may also be a hand-held portion that facilitates hand-holding.

Claims

1. The telescopic assembly is used for supporting an electricity utilization main body and is characterized by comprising a first barrel, a second barrel and a first positioning piece, wherein the first barrel is provided with a first storage cavity, and at least 1 group of third positioning parts are arranged on the first barrel;

the second cylinder body is sleeved in the first containing cavity of the first cylinder body in a sliding manner;

the first positioning piece is arranged on the second cylinder body, the first positioning piece is provided with at least 1 fourth positioning part corresponding to the at least 1 group of third positioning parts, and each fourth positioning part can be matched with the corresponding third positioning part in the process of sliding the second cylinder body relative to the first cylinder body so as to position the second cylinder body on the first cylinder body;

the third positioning part is a groove, and the fourth positioning part is a bulge; alternatively, the third positioning portion is a protrusion, and the fourth positioning portion is a groove.

2. The telescopic assembly according to claim 1, wherein the first positioning member extends with at least 1 first cantilever arm, each of the fourth positioning portions is provided corresponding to each of the first cantilever arms, the first cantilever arms are configured to apply an elastic force to the fourth positioning portions so that the fourth positioning portions cooperate with the third positioning portions, the telescopic assembly has a first deformation space serving as a yield space of the first cantilever arms during disengagement of the fourth positioning portions from the third positioning portions.

3. The telescopic assembly according to claim 2, wherein the first cantilever is provided with a first pressing protrusion, and the first pressing protrusion is pressed against the second cylinder to press the first cantilever during the process of the fourth positioning portion being matched with the third positioning portion.

4. A telescoping assembly as recited in claim 3, wherein the fourth locating portion is located between the first abutment projection and the initial end of the first cantilever arm.

5. A telescopic assembly according to claim 3, wherein the first positioning member is located between the first cylinder and the second cylinder, the first deformation space is located between the first cantilever and the outer wall of the second cylinder, and the first pressing protrusion abuts against the outer wall of the second cylinder during the process of the fourth positioning portion being fitted to the third positioning portion.

6. A telescopic assembly according to claim 3, wherein the first locating member is provided with a first mounting slot therethrough, the first cantilever being formed by the extension of an edge of the first mounting slot, the first cantilever being received in the first mounting slot.

7. The retraction assembly according to claim 1 wherein, in the case where the third positioning portions are slots, each set of the third positioning portions is a single slot or a plurality of spaced slots, each of the fourth positioning portions is a single protrusion; in the case that the third positioning portions are protrusions, each group of the third positioning portions is a single protrusion or a plurality of protrusions arranged at intervals, and each fourth positioning portion is a single groove.

8. The telescopic assembly according to claim 7, wherein the first cylinder has at least one first inner wall, and at least one set of the third positioning portions are respectively and correspondingly disposed on at least one first inner wall.

9. The telescopic assembly according to claim 1, wherein in case the third positioning portion is a slot, a longitudinal section of the third positioning portion is shaped as an open mouth, the longitudinal section being along a telescopic direction of the telescopic assembly and passing through the opening of the third positioning portion; in the case that the fourth positioning portion is a groove, a longitudinal section of the fourth positioning portion is in an open shape, and the longitudinal section extends in the expansion and contraction direction of the expansion and contraction assembly and passes through the opening of the third positioning portion.

10. The telescopic assembly according to claim 9, wherein in case the third positioning portion is a groove, the longitudinal cross-sectional shape of the third positioning portion is arc-shaped; in the case where the fourth positioning portion is a groove, the longitudinal cross-sectional shape of the fourth positioning portion is an arc shape.

11. The telescoping assembly of claim 1, wherein the fourth detent is shaped to mate with the third detent;

the third positioning parts are 2 groups, the 2 groups of third positioning parts are respectively arranged on two opposite sides of the inner wall of the first storage cavity, and the number of the fourth positioning parts is 2;

the first locating piece is fixedly arranged on the second cylinder body.

12. The telescopic assembly is used for supporting the power utilization main body and is characterized by comprising a first cylinder, a second cylinder and a first positioning piece, wherein the first cylinder is provided with a first storage cavity;

the first positioning piece is arranged on the second cylinder body,

the first positioning piece is provided with at least one fourth positioning part which can act on the first cylinder body to enable the second cylinder body to be positioned on the first cylinder body.

13. The retraction assembly according to claim 12 wherein the first positioning member extends with at least one first cantilever arm, each first cantilever arm being provided with a fourth positioning portion, the first cantilever arm being configured to apply a resilient force to the fourth positioning portion such that the fourth positioning portion acts on the first barrel.

14. The telescopic assembly according to claim 13, wherein the first cantilever is provided with a first pressing protrusion which presses against the first barrel to press the first cantilever when the fourth positioning portion acts on the first barrel;

the fourth positioning part is positioned between the first pressing protrusion and the initial end of the first cantilever;

the first locating piece is positioned between the first cylinder body and the second cylinder body, a first mounting groove is formed in a penetrating manner by the first locating piece, the first cantilever is formed by extending the edge of the first mounting groove, and the first cantilever is accommodated in the first mounting groove;

the first positioning piece is positioned between the first cylinder body and the second cylinder body.

15. The retraction assembly according to claim 12 wherein said first barrel has at least one first inner wall, said at least one fourth positioning portion respectively corresponding to said at least one first inner wall, said fourth positioning portion frictionally contacting said corresponding first inner wall such that said second barrel is positionable in said first barrel.

16. A shooting support, characterized by comprising a clamp and a first rod body, wherein the clamp is used for loading an electronic terminal, the clamp is arranged on the first rod body, and the first rod body is the telescopic assembly of any one of claims 1-15.