CN219022657U - Adjustable support - Google Patents

Abstract

The utility model provides an adjustable bracket, which comprises a base and a main rod body connected with the base, wherein the main rod body comprises at least two coaxial bracket rods, two adjacent bracket rods are embedded rods and outer sleeve rods which are nested with each other, and a telescopic locking mechanism for relatively fixing the embedded rods and the outer sleeve rods is arranged between the embedded rods and the outer sleeve rods. Based on the technical scheme of the utility model, the adjustability and convenience are realized mainly by adopting the telescopic structure, and the advantages of small occupied space and portability are achieved. Based on the embedded rod and the outer sleeve rod which are nested with each other, the embedded rod can extend out of or retract into the outer sleeve rod, and the telescopic locking mechanism is utilized to realize the fixation after the telescopic locking, so that a stable rod body structure is formed to hang physiological saline or other articles needing to be hung through the hook.

Description

Adjustable support

Technical Field

The utility model relates to the technical field of brackets, in particular to an adjustable bracket.

Background

The normal saline has the functions and effects of flushing and pre-flushing, is suitable for flushing and pre-flushing of operations, wounds, eyes, urethra, sterile pipeline systems and the like, and generally needs to be suspended to a certain height in the use process of the normal saline, so that the liquid can smoothly flow out under the action of gravity.

The conventional water hanging bracket is a single bracket, and a bracket leg with a large size is required to be used as a base for supporting the bracket, so that the bracket occupies a large space and is easy to be collided by mistake to cause toppling. And the heights of most of the brackets at present are fixed, the infusion tube lengths of different medical equipment are often inconsistent, so that the heights of the fixed brackets are unsuitable, and the operation is affected.

For example, in the prior art with publication No. CN214105431U, the main body is a fixed bracket, and although the hanging height of the brine can be adjusted by the lifting device, the size of the main body cannot be changed, and there are still problems of large occupied area and poor portability. The sliding type height adjusting mode is troublesome, and the electric push rod in the prior patent needs to be electrified.

Disclosure of Invention

The utility model provides an adjustable bracket for solving the problems of large volume, poor portability, troublesome adjustment mode and the like of the bracket in the prior art.

The utility model provides an adjustable bracket, which comprises a base and a main rod body connected with the base, wherein the main rod body comprises at least two coaxial bracket rods, two adjacent bracket rods are embedded rods and outer sleeve rods which are nested with each other, and a telescopic locking mechanism for relatively fixing the embedded rods and the outer sleeve rods is arranged between the embedded rods and the outer sleeve rods.

In one embodiment, the telescopic locking mechanism comprises a mounting groove and a locking hole which are respectively formed in the embedded rod and the outer sleeve rod, an elastic clamping block is arranged in the mounting groove, and the elastic clamping block can be clamped into the locking hole when the locking hole corresponds to the mounting groove, so that the embedded rod and the outer sleeve rod are relatively fixed.

In one embodiment, the telescopic locking mechanism comprises a plurality of locking grooves and clamping seats, wherein the locking grooves and the clamping seats are respectively arranged on the embedded rod and the outer sleeve rod, the locking grooves are distributed along the axial direction of the embedded rod, clamping wedges are hinged to the clamping seats to form a hinge point, and the tail ends of the clamping wedges can be clamped into the locking grooves;

wherein, the length of the clamping wedge from the tail end to the hinge point is longer than the vertical distance from the hinge point to the bottom of the locking groove.

In one embodiment, the telescopic locking mechanism further comprises a reversing groove arranged on the embedded rod, the distance from the bottom of the reversing groove to the hinge point is not smaller than the length from the tail end of the clamping wedge to the hinge point, and the inner size of the reversing groove is larger than the tail end of the clamping wedge.

In one embodiment, the number of the reversing grooves is plural, and the reversing grooves are disposed at the front and rear ends of the arrangement structure formed by the locking grooves, or the reversing grooves are disposed at the front and rear ends of the arrangement structure formed by the locking grooves and in the arrangement structure.

In one embodiment, the clamping seat is further provided with a first elastic piece, the two opposite sides of the clamping wedge in the self rotation plane are respectively connected with the first elastic piece, and the first elastic piece can enable the clamping wedge to have a trend of keeping vertical to the embedded rod.

In one embodiment, the telescopic locking mechanism comprises a locking pulling piece, the middle part of the locking pulling piece is hinged to the outer sleeve rod, one end of the locking pulling piece is bent towards one side close to the embedded rod to form a plug-in part, a first elastic piece is matched between the other end of the locking pulling piece and the outer sleeve rod, and a plurality of slots distributed along the axial direction are formed in the embedded rod;

the first elastic piece can drive the locking pulling piece to rotate, so that the inserting part is inserted into the corresponding slot and keeps the inserting state.

In one embodiment, the main rod body is rotatably connected with the base through a pin shaft, so that the main rod body can turn over in a vertical plane relative to the base, and a rotary locking mechanism is arranged at the pin shaft.

In one embodiment, the rotary locking mechanism comprises a rotary seat fixedly connected with the main rod body, a chute is formed in the rotary seat, a positioning pin and a second elastic piece matched with the positioning pin are arranged in the chute, a plurality of positioning holes are formed in the base, and the positioning holes are distributed around the pin shaft;

the second elastic piece can drive the positioning pin to be inserted into the corresponding positioning hole.

In one embodiment, the rotation locking mechanism comprises a first connecting part and a second connecting part which are formed on the base and are opposite to each other and spaced, a third connecting part which can be inserted between the first connecting part and the second connecting part is formed at the end part of the main rod body, through holes are respectively formed on the three connecting parts, and the pin shaft can movably sequentially penetrate into the through holes of the three connecting parts;

the cross section of the pin shaft is identical to the shape of the through holes on the second connecting part and the third connecting part, the cross section of the pin shaft is in a non-circular center symmetrical pattern, and the through holes on the first connecting part are circular.

In one embodiment, the pin shaft is divided into a first shaft section corresponding to the first connecting part and a second shaft section corresponding to the second connecting part, the cross section of the first shaft section is in a non-circular central symmetry figure, the cross section of the second shaft section is in a circular shape, a first end cap is arranged at the tail end of the first shaft section, and a second end cap is arranged at the tail end of the second shaft section;

and a second elastic piece is matched between the first end cap and/or the second end cap and the corresponding connecting part of the base, and the second elastic piece is used for keeping the first shaft section to penetrate into the through holes on the second connecting part and the third connecting part at the same time.

The above-described features may be combined in various suitable ways or replaced by equivalent features as long as the object of the present utility model can be achieved.

Compared with the prior art, the adjustable bracket provided by the utility model has at least the following beneficial effects:

the adjustable bracket provided by the embodiment of the utility model mainly adopts a telescopic structure to realize adjustability and convenience, and achieves the advantages of small occupied space and portability. Based on the embedded rod and the outer sleeve rod which are nested with each other, the embedded rod can extend out of or retract into the outer sleeve rod, and the telescopic locking mechanism is utilized to realize the fixation after the telescopic locking, so that a stable rod body structure is formed to hang physiological saline or other articles needing to be hung through the hook.

Drawings

The utility model will be described in more detail hereinafter on the basis of embodiments and with reference to the accompanying drawings. Wherein:

FIG. 1 shows a schematic view of one of the configurations of the telescopic locking mechanism of the adjustable bracket of the present utility model;

FIG. 2 shows an exploded view of the structure of FIG. 1;

FIG. 3 shows a schematic view of another construction of the telescopic locking mechanism of the adjustable bracket of the present utility model;

FIG. 4 shows an exploded view of the structure shown in FIG. 3;

FIG. 5 shows a schematic view of another configuration of the telescopic locking mechanism of the adjustable bracket of the present utility model;

FIG. 6 shows an exploded view of the structure of FIG. 5;

FIG. 7 shows a schematic view of one of the constructions of the rotational locking mechanism of the adjustable bracket of the present utility model;

FIG. 8 shows an exploded view of the structure of FIG. 7;

FIG. 9 shows a schematic view of another configuration of the rotational locking mechanism of the adjustable bracket of the present utility model;

fig. 10 shows an exploded view of the structure shown in fig. 9.

In the drawings, like parts are designated with like reference numerals. The figures are not to scale.

Reference numerals:

the device comprises a main rod body, an 11-outer sleeve rod, a 12-embedded rod, a 20-telescopic locking mechanism, a 201-first elastic piece, a 211-installation groove, a 212-locking hole, a 213-elastic clamping block, a 221-locking groove, a 222-clamping seat, a 223-clamping wedge, a 224-reversing groove, a 231-locking pulling piece, a 232-inserting part, a 233-inserting groove, a 30-base, a 31-positioning hole, a 40-pin shaft, a 41-first shaft section, a 42-second shaft section, a 43-first end cap, a 44-second end cap, a 50-rotary locking mechanism, a 501-second elastic piece, a 511-rotating seat, a 512-sliding groove, a 513-positioning pin, a 521-first connecting part, a 522-second connecting part, a 523-third connecting part, a 524-perforating hole and a 60-hook.

Detailed Description

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

Example 1

The embodiment of the utility model provides an adjustable bracket, which comprises a base 30 and a main rod body 10 connected with the base 30, wherein the main rod body 10 comprises at least two coaxial bracket rods, two adjacent bracket rods are an embedded rod 12 and an outer sleeve rod 11 which are nested with each other, and a telescopic locking mechanism 20 for relatively fixing the embedded rod 12 and the outer sleeve rod 11 is arranged between the embedded rod 12 and the outer sleeve rod 11.

The telescopic locking mechanism 20 comprises a mounting groove 211 and a locking hole 212 which are respectively formed in the embedded rod 12 and the outer sleeve rod 11, an elastic clamping block 213 is arranged in the mounting groove 211, and the elastic clamping block 213 can be clamped into the locking hole 212 when the locking hole 212 corresponds to the mounting groove 211 so as to enable the embedded rod 12 and the outer sleeve rod 11 to be relatively fixed.

Specifically, the adjustable support of this application mainly adopts extending structure to realize adjustability and convenience, reaches occupation space little, portable advantage. Based on the embedded rod 12 and the outer sleeve rod 11 which are nested with each other, the embedded rod 12 can extend out of or retract into the outer sleeve rod 11, and the telescopic locking mechanism 20 is utilized to realize telescopic fixation, so that a stable rod body structure is formed to hang physiological saline or other articles needing to be hung through the hanging hook 60. Of course, in practical application, it is necessary to avoid the relative rotation between the embedded rod 12 and the outer sleeve rod 11, and this can be achieved by providing a structure between the embedded rod 12 and the outer sleeve rod 11 to avoid the relative rotation between them in the circumferential direction; the cross section of the inner rod 12 and the cross section of the inner space of the outer sleeve 11 may also be set to be non-circular starting from the outer shape.

In this embodiment, as shown in fig. 1 and 2 of the drawings, the elastic clamping blocks 213 are matched with the locking holes 212 to realize the relative fixation of the embedded rod 12 and the outer sleeve 11, the outer sleeve 11 is provided with a plurality of locking holes 212 distributed along the axial direction, and in the process of the relative telescopic movement of the embedded rod 12 and the outer sleeve 11, the elastic clamping blocks 213 (composed of clamping blocks and springs) are pressed into the mounting grooves 211 by the outer sleeve 11, and when the embedded rod 12 and the outer sleeve 11 relatively telescopic move to the mounting grooves 211 and a certain locking hole 212, the elastic clamping blocks 213 extend out of the mounting grooves 211 and are clamped into the locking holes 212 under the action of elastic force. When the relative fixation of the inner rod 12 and the outer rod 11 needs to be released, the elastic clamp block 213 needs to be pressed into the mounting groove 211. The surface of the elastic clamping block 213 is provided with a convex cambered surface, so that the elastic clamping block 213 is conveniently pressed and guided to be retracted into the inner wall of the jacket rod 11 by utilizing the inclined surface structure of the cambered surface.

Example 2

The present embodiment mainly proposes a telescopic locking mechanism of another structure.

The embodiment of the utility model provides an adjustable bracket, which comprises a base 30 and a main rod body 10 connected with the base 30, wherein the main rod body 10 comprises at least two coaxial bracket rods, two adjacent bracket rods are an embedded rod 12 and an outer sleeve rod 11 which are nested with each other, and a telescopic locking mechanism 20 for relatively fixing the embedded rod 12 and the outer sleeve rod 11 is arranged between the embedded rod 12 and the outer sleeve rod 11.

The telescopic locking mechanism 20 comprises a plurality of locking grooves 221 and clamping seats 222 which are respectively arranged on the embedded rod 12 and the outer sleeve rod 11, the locking grooves 221 are distributed along the axial direction of the embedded rod 12, the clamping seats 222 are hinged with clamping wedges 223 to form hinge points, and the tail ends of the clamping wedges 223 can be clamped into the locking grooves 221;

wherein the length of the catching wedge 223 from the end thereof to the hinge point is longer than the vertical distance from the hinge point to the bottom of the locking groove 221.

Specifically, in this embodiment, as shown in fig. 3 and 4 of the drawings, the engagement of the wedge 223 and the locking groove 221 is first used to achieve the relative fixation of the inner rod 12 and the outer rod 11 in a single direction. Since the bracket is required to overcome the gravity of the suspended article, the clamping wedge 223 is matched with the locking groove 221 in a downward inclined posture, and the gravity of the suspended article and even the self gravity of the outer sleeve rod 11 act on the clamping wedge 223, so that the clamping wedge 223 has a trend of turning upwards, but since the length from the tail end of the clamping wedge 223 to the hinging point is longer than the vertical distance from the hinging point to the bottom of the locking groove 221, no space is available for the clamping wedge 223 to turn upwards, and the relative fixation of the embedded rod 12 and the outer sleeve rod 11 in a single direction (relative shrinkage direction) can be realized in a matched mode. While the movement of the inner rod 12 and the outer rod 11 in the opposite extension direction is not affected.

Further, the telescopic locking mechanism 20 further includes a reversing groove 224 provided on the in-line lever 12, and a distance from a bottom of the reversing groove 224 to the hinge point is not smaller than a length of the clip 223 from an end thereof to the hinge point.

Specifically, as shown in fig. 3 of the drawings, the relative fixation of the inner rod 12 and the outer sleeve rod 11 in a single direction is achieved based on the engagement of the wedge 223 with the locking groove 221, and the reversing groove 224 is further designed so that this relative fixation structure can be released when necessary. Specifically, when the current unidirectional relative fixation of the clip 223 and the locking groove 221 needs to be released, the inner insert rod 12 and the outer sleeve rod 11 are further extended relatively, so that the clip 223 relatively moves to correspond to the reversing groove 224, since the size of the reversing groove 224 is larger than the tail end of the clip 223 and the depth of the reversing groove 224 is also not smaller than the length from the tail end to the hinging point of the clip 223, namely the width of the reversing groove 224 along the axial direction of the inner insert rod 12 and the size of the inner space thereof are both smaller than the tail end of the accommodating clip 223, and simultaneously the space requirement of the tail end of the clip 223 for turning and reversing in the reversing groove 224 is met, the clip 223 can rotate at the reversing groove 224 to change the inclined direction, such as the inclined downward direction shown in fig. 4 of the attached drawings is changed to be inclined upward, at this time, the relative fixation of the clip 223 and the current direction of the locking groove 221 is released, the inner insert rod 12 and the outer sleeve rod 11 can be relatively contracted but not relatively elongated, and the unidirectional relative fixation direction of the inner insert rod 12 and the outer sleeve rod 11 is further changed. The next reversing can be achieved by relatively retracting the inner rod 12 and the outer rod 11 to the point where the catch 223 corresponds to the reversing groove 224 on the other side.

Preferably, the number of the reversing grooves 224 is plural, and the reversing grooves 224 are provided at the front and rear ends of the arrangement structure composed of the locking grooves 221, or the reversing grooves 224 are provided at the front and rear ends of the arrangement structure composed of the locking grooves 221 and in the arrangement structure.

Specifically, the reversing groove 224 is provided at least at the front and rear ends of the arrangement structure formed by the locking groove 221, that is, the reversing of the wedge 223 can be performed at least when the inner rod 12 and the outer rod 11 are completely contracted or completely extended with respect to each other, which, of course, has a problem of a long reversing movement path. The reversing groove 224 can be further provided between the two locking grooves 221 that are partially adjacent, so that the moving path of the reversing can be shortened. However, it should be noted that if the relative telescopic length of the inner rod 12 and the outer rod 11 is simply adjusted and the reversing is not desired at the reversing groove 224 between the two locking grooves 221, it is necessary to manually maintain the inclined posture of the locking wedge 223 and move to be offset from the reversing groove 224.

Further, the clamping seat 222 is further provided with a first elastic member 201, and the opposite sides of the clamping wedge 223 in the rotation plane of the clamping wedge 223 are respectively connected with the first elastic member 201, so that the clamping wedge 223 can keep vertical to the embedded rod 12.

Specifically, as shown in fig. 4 of the drawings, the first elastic member 201 is configured to make the wedge 223 have a tendency to be perpendicular to the embedded rod 12, so that, on one hand, the wedge 223 can be kept stably engaged with the locking groove 221 by using an elastic force when the wedge 223 is in an inclined state, and on the other hand, the wedge 223 can be automatically restored to an initial state perpendicular to the embedded rod 12 at the reversing groove 224, so that the rotation during the subsequent reversing is facilitated, and the fool-proof design is provided.

Example 3

The present embodiment mainly proposes a telescopic locking mechanism of another structure.

The embodiment of the utility model provides an adjustable bracket, which comprises a base 30 and a main rod body 10 connected with the base 30, wherein the main rod body 10 comprises at least two coaxial bracket rods, two adjacent bracket rods are an embedded rod 12 and an outer sleeve rod 11 which are nested with each other, and a telescopic locking mechanism 20 for relatively fixing the embedded rod 12 and the outer sleeve rod 11 is arranged between the embedded rod 12 and the outer sleeve rod 11.

The telescopic locking mechanism 20 comprises a locking pulling piece 231, the middle part of the locking pulling piece 231 is hinged to the outer sleeve rod 11, one end of the locking pulling piece 231 is bent towards one side close to the embedded rod 12 to form a plug-in part 232, a first elastic piece 201 is matched between the other end of the locking pulling piece and the outer sleeve rod 11, and a plurality of slots 233 distributed along the axial direction are formed in the embedded rod 12;

the first elastic member 201 can drive the locking tab 231 to rotate, so that the inserting portion 232 is inserted into the corresponding slot 233 and keeps the inserted state.

Specifically, as shown in fig. 5 and 6 of the drawings, the insertion portion 232 of the locking tab 231 is matched with the insertion slot 233 to achieve the relative fixation of the embedded rod 12 and the outer sleeve rod 11. The first elastic member 201 is initially in a compressed state and is disposed between one end of the locking tab 231 and the outer wall of the jacket rod 11, so that the first elastic member 201 can drive the locking tab 231 to rotate by a certain angle, so that the plug-in portion 232 at the other end of the locking tab 231 abuts against the outer wall of the embedded rod 12, and when the embedded rod 12 and the jacket rod 11 relatively move until the plug-in portion 232 corresponds to one of the slots 233 on the embedded rod 12, the locking tab 231 is further rotated by a certain angle under the action of the first elastic member 201 to enable the plug-in portion 232 to be inserted into the corresponding slot 233 and maintain the inserted state, thereby realizing the relative fixation of the embedded rod 12 and the jacket rod 11. The relative fixation is released, and only one end of the locking tab 231 corresponding to the first elastic member 201 is pressed, so that the plugging portion 232 can be moved out of the current slot 233.

Example 4

The embodiment mainly provides a rotation locking mechanism on the basis of the telescopic locking mechanism of the embodiment, so that the relative rotation of the main rod body and the base is realized, and then the main rod body can be laid down, and the storage property and portability of the telescopic locking mechanism are further enhanced.

The embodiment of the utility model provides an adjustable bracket, which comprises a base 30 and a main rod body 10 connected with the base 30, wherein the main rod body 10 comprises at least two coaxial bracket rods, two adjacent bracket rods are an embedded rod 12 and an outer sleeve rod 11 which are nested with each other, and a telescopic locking mechanism 20 for relatively fixing the embedded rod 12 and the outer sleeve rod 11 is arranged between the embedded rod 12 and the outer sleeve rod 11; the main rod body 10 is rotatably connected with the base 30 through a pin shaft 40, so that the main rod body 10 can turn over in a vertical plane relative to the base 30, and a rotary locking mechanism 50 is arranged at the pin shaft 40.

The rotation locking mechanism 50 comprises a rotation seat 511 fixedly connected with the main rod body 10, a sliding groove 512 is formed in the rotation seat 511, a positioning pin 513 and a second elastic piece 501 matched with the positioning pin 513 are arranged in the sliding groove 512, a plurality of positioning holes 31 are formed in the base 30, and the positioning holes 31 are distributed around the pin shaft 40;

wherein the second elastic member 501 can drive the positioning pin 513 to be inserted into the corresponding positioning hole 31.

Specifically, as shown in fig. 7 and 8 of the drawings, the rotation locking mechanism 50 achieves the relative fixation of the base 30 and the main rod body 10 mainly based on the cooperation of the positioning pin 513 and the positioning hole 31. The rotating seat 511 is connected to one side of the base 30, and a sliding groove 512 on the rotating seat 511 has an opening on an end face of one side of the rotating seat 511, which is close to the base 30, and an end of the positioning pin 513 can enter and exit the sliding groove 512 through the opening. Thus, in the relative fixing of the base 30 and the main rod body 10, the elastic force of the second elastic member 501 drives the end of the positioning pin 513 to extend out of the sliding slot 512 through the opening and fit into the corresponding positioning hole 31. When the main rod body 10 needs to rotate relative to the base 30, the positioning pin 513 is operated to slide towards the inside of the sliding groove 512 and compress the second elastic member 501 by the protruding portion of the positioning pin 513 protruding out of the sliding groove 512, and at this time, the end portion of the positioning pin 513 is separated from the current positioning hole 31, so that the main rod body 10 can be operated to rotate relative to the base 30 by a certain angle until the positioning pin 513 is re-corresponding and matched with another positioning hole 31.

It should be noted that the number and arrangement of the positioning holes 31 are designed according to the specific requirement of the main rod body 10 rotating relative to the base 30. In this embodiment, as shown in fig. 8 of the drawings, the main rod body 10 is mainly vertically erected and horizontally laid down, so that two positioning holes 31 are provided, and the corresponding central angle between the two is 90 degrees.

The base 30 may be mounted on the corresponding device in a movable connection manner (e.g., clamping, inserting, positioning, etc.), or may be directly fixed (e.g., by fastening, welding, etc.) on the corresponding device.

Example 5

The present embodiment mainly proposes a rotation locking mechanism of another structure.

The embodiment of the utility model provides an adjustable bracket, which comprises a base 30 and a main rod body 10 connected with the base 30, wherein the main rod body 10 comprises at least two coaxial bracket rods, two adjacent bracket rods are an embedded rod 12 and an outer sleeve rod 11 which are nested with each other, and a telescopic locking mechanism 20 for relatively fixing the embedded rod 12 and the outer sleeve rod 11 is arranged between the embedded rod 12 and the outer sleeve rod 11; the main rod body 10 is rotatably connected with the base 30 through a pin shaft 40, so that the main rod body 10 can turn over in a vertical plane relative to the base 30, and a rotary locking mechanism 50 is arranged at the pin shaft 40.

The rotation locking mechanism 50 includes a first connecting portion 521 and a second connecting portion 522 formed on the base 30 opposite to and spaced apart from each other, a third connecting portion 523 capable of being inserted between the first connecting portion 521 and the second connecting portion 522 is formed at an end of the main rod body 10, through holes 524 are respectively provided at the three connecting portions, and the pin shaft 40 movably penetrates into the through holes 524 of the three connecting portions in sequence;

the cross section of the pin 40 is the same as the shape of the through holes 524 on the second connecting portion 522 and the third connecting portion 523, and is a non-circular center symmetrical pattern, and the through holes 524 on the first connecting portion 521 are circular.

Specifically, as shown in fig. 9 and 10 of the drawings, the rotation locking mechanism 50 is mainly based on the cooperation of the pin 40 and the through hole 524 to achieve the relative fixation of the base 30 and the main rod body 10. The cross section of the pin 40 and the perforations 524 on the second connecting portion 522 and the third connecting portion 523 adopt non-circular centrosymmetric patterns, so that the pin 40 cannot rotate randomly in structure. When the pin 40 is simultaneously matched with the through holes 524 of the three connecting parts, the pin 40 cannot rotate randomly relative to the base 30, and the third connecting part 523 (i.e. the main rod body 10) cannot rotate randomly relative to the pin 40, so that the pin 40, the base 30 and the main rod body 10 are relatively fixed. When adjustment is required, the current relative fixing structure is released, in this embodiment, since the through hole 524 on the first connecting portion 521 is circular, the pin 40 can be pulled out from one side of the first connecting portion 521 until the other end of the pin 40 is separated from the through hole 524 of the second connecting portion 522, but the pin 40 and the third connecting portion 523 are kept engaged with each other, at this time, the pin 40 and the third connecting portion 523 can be rotated integrally by a certain angle until the pin 40 is in a posture corresponding to the through hole 524 of the second connecting portion 522 again, and then the pin 40 is pushed into the through hole 524 of the second connecting portion 522.

Of course, in theory, the through hole 524 of the first connecting portion 521 may be configured to be consistent with the cross section of the pin 40, but in this way, the pin 40 needs to be completely pulled away from the three connecting portions during adjustment, at this time, no structural stress is applied between the pin 40, the main rod body 10 and the base 30, and a relative state of the three positions of the external force is required, which is inconvenient for adjustment.

Further, the pin 40 is divided into a first shaft section 41 corresponding to the first connecting portion 521 and a second shaft section 42 corresponding to the second connecting portion 522, the cross section of the first shaft section 41 is a non-circular centrosymmetric figure, the cross section of the second shaft section 42 is circular, the end of the first shaft section 41 is provided with a first end cap 43, and the end of the second shaft section 42 is provided with a second end cap 44;

wherein, a second elastic element 501 is matched between the corresponding connecting parts of the first end cap 43 and/or the second end cap 44 and the base 30, and the second elastic element 501 is used for keeping the first shaft section 41 penetrating into the perforation 524 on the second connecting part 522 and the third connecting part 523.

Specifically, based on the further design of the pin 40 structure, the convenience of adjustment is heightened. The pin 40 is arranged in a segmented structure, namely a first shaft section 41 and a second shaft section 42, which are different in structure, as shown in fig. 10 of the accompanying drawings. The first shaft section 41 is fixed relative to the through hole 524 of the connecting part, and the second shaft section 42 is mainly used for unlocking by matching with the end cap and the second elastic piece 501 to realize one-key pressing. Specifically, referring to fig. 10 of the drawings, in the locked state, the elastic force of the second elastic member 501 makes the first end cap 43 abut against the outer side surface of the first connecting portion 521, and a gap is formed between the second end cap 44 and the outer side surface of the second connecting portion 522, at this time, the first shaft section 41 connected to the first end cap 43 sequentially penetrates into the through holes 524 of the three connecting portions, and the pin shaft 40, the base 30, and the main rod body 10 are relatively fixed.

When the second end cap 44 is required to be released, the second elastic member 501 is pressed and deformed, at this time, the pin 40 moves, the first shaft section 41 withdraws from the through hole 524 of the second connecting portion 522 and the second shaft section 42 enters the through hole 524 of the second connecting portion 522, and the second shaft section 42 is a circular shaft, so that the rotation of the pin 40 is not affected, and the pin 40 and the third connecting portion 523 can integrally rotate a certain angle until the pin 40 is in a posture corresponding to the through hole 524 of the second connecting portion 522 again. At this time, the second end cap 44 is released, and the pin 40 can be reversely moved to the first shaft section 41 to re-enter the through hole 524 of the second connecting portion 522 by the second elastic member 501, thereby re-achieving the relative fixation.

The cross section of the pin 40 may be specifically designed according to the different rotation requirements, and the main difference is the unit rotation angle from the shape of the through hole 524 in the second connection portion 522 and the third connection portion 523. In this embodiment, as shown in fig. 10 of the drawings, the main rod body 10 is mainly vertically erected and horizontally laid down, so that the cross section of the pin 40 and the shape of the through holes 524 on the second connecting portion 522 and the third connecting portion 523 are configured as a cross, and the unit rotation angle is 90 degrees.

The above embodiments are respectively described for the structures of the telescopic locking mechanism 20 and the rotary locking mechanism 50, and in practical application, the schemes of different structures of the telescopic locking mechanism 20 and the rotary locking mechanism 50 in the adjustable bracket can be combined with each other to realize telescopic and rotary in different modes.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "bottom," "top," "front," "rear," "inner," "outer," "left," "right," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

Although the utility model herein has been described with reference to particular embodiments, it is to be understood that these embodiments are merely illustrative of the principles and applications of the present utility model. It is therefore to be understood that numerous modifications may be made to the illustrative embodiments and that other arrangements may be devised without departing from the spirit and scope of the present utility model as defined by the appended claims. It should be understood that the different dependent claims and the features described herein may be combined in ways other than as described in the original claims. It is also to be understood that features described in connection with separate embodiments may be used in other described embodiments.

Claims (8)

1. The adjustable bracket is characterized by comprising a base (30) and a main rod body (10) connected with the base (30), wherein the main rod body (10) comprises at least two coaxial bracket rods, two adjacent bracket rods are embedded rods (12) and outer sleeve rods (11) which are nested with each other, and a telescopic locking mechanism (20) for relatively fixing the embedded rods (12) and the outer sleeve rods (11) is arranged between the embedded rods;

the telescopic locking mechanism (20) comprises a mounting groove (211) and a locking hole (212) which are respectively formed in the embedded rod (12) and the outer sleeve rod (11), an elastic clamping block (213) is arranged in the mounting groove (211), and the elastic clamping block (213) can be clamped into the locking hole (212) when the locking hole (212) corresponds to the mounting groove (211), so that the embedded rod (12) and the outer sleeve rod (11) are relatively fixed; or (b)

The telescopic locking mechanism (20) comprises locking grooves (221) and clamping seats (222) which are respectively arranged on the embedded rod (12) and the outer sleeve rod (11), the number of the locking grooves (221) is multiple and distributed along the axial direction of the embedded rod (12), clamping wedges (223) are hinged to the clamping seats (222) to form hinging points, and the tail ends of the clamping wedges (223) can be clamped into the locking grooves (221); wherein the length of the clamping wedge (223) from the tail end to the hinge point is longer than the vertical distance from the hinge point to the bottom of the locking groove (221); or (b)

The telescopic locking mechanism (20) comprises a locking pulling piece (231), the middle part of the locking pulling piece (231) is hinged to the outer sleeve rod (11), one end of the locking pulling piece (231) is bent towards one side close to the embedded rod (12) to form an inserting part (232), a first elastic piece (201) is matched between the other end of the locking pulling piece and the outer sleeve rod (11), and a plurality of slots (233) distributed along the axial direction are formed in the embedded rod (12); the first elastic piece (201) can drive the locking pulling piece (231) to rotate, so that the inserting portion (232) is inserted into the corresponding inserting groove (233) and keeps an inserting state.

2. The adjustable bracket according to claim 1, wherein the telescopic locking mechanism (20) further comprises a reversing groove (224) provided on the embedded rod (12), a distance from a groove bottom of the reversing groove (224) to the hinge point being not less than a length of the wedge (223) from the end thereof to the hinge point.

3. The adjustable bracket according to claim 2, wherein the number of the reversing grooves (224) is plural, the reversing grooves (224) are provided at the front and rear ends of the arrangement structure composed of the locking grooves (221), or the reversing grooves (224) are provided at the front and rear ends of the arrangement structure composed of the locking grooves (221) and in the arrangement structure.

4. An adjustable bracket according to any one of claims 1 to 3, wherein the clamping seat (222) is further provided with a first elastic member (201), the clamping wedges (223) are respectively connected with the first elastic members (201) at two opposite sides in a self rotation plane, and the first elastic members (201) can enable the clamping wedges (223) to have a trend of keeping perpendicular to the embedded rod (12).

5. Adjustable bracket according to claim 1, characterized in that the main rod body (10) and the base (30) are rotatably connected by a pin (40) so that the main rod body (10) can be turned over in a vertical plane relative to the base (30), and a rotation locking mechanism (50) is arranged at the pin (40).

6. The adjustable bracket according to claim 5, wherein the rotation locking mechanism (50) comprises a rotating seat (511) fixedly connected with the main rod body (10), a sliding groove (512) is formed in the rotating seat (511), a positioning pin (513) and a second elastic piece (501) matched with the positioning pin (513) are arranged in the sliding groove (512), a plurality of positioning holes (31) are formed in the base (30), and the positioning holes (31) are distributed around the pin shaft (40);

wherein the second elastic member (501) can drive the positioning pin (513) to be inserted into the corresponding positioning hole (31).

7. The adjustable bracket according to claim 5, wherein the rotation locking mechanism (50) comprises a first connecting portion (521) and a second connecting portion (522) formed on the base (30) and opposite to each other and spaced apart, a third connecting portion (523) capable of being inserted between the first connecting portion (521) and the second connecting portion (522) is formed at an end of the main rod body (10), perforations (524) are respectively provided on the three connecting portions, and the pin shaft (40) movably penetrates into the perforations (524) of the three connecting portions in sequence;

the cross section of the pin shaft (40) is the same as the shape of the through holes (524) on the second connecting part (522) and the third connecting part (523), the cross section of the pin shaft is a non-circular center symmetry figure, and the through holes (524) on the first connecting part (521) are circular.

8. The adjustable bracket according to claim 7, wherein the pin shaft (40) is divided into a first shaft section (41) corresponding to the first connecting portion (521), a second shaft section (42) corresponding to the second connecting portion (522), the cross section of the first shaft section (41) is the non-circular centrosymmetric pattern, the cross section of the second shaft section (42) is circular, a first end cap (43) is provided at the end of the first shaft section (41), and a second end cap (44) is provided at the end of the second shaft section (42);

wherein, a second elastic piece (501) is matched between the first end cap (43) and/or the second end cap (44) and the corresponding connecting part on the base (30), and the second elastic piece (501) is used for keeping the first shaft section (41) to penetrate into the through holes (524) on the second connecting part (522) and the third connecting part (523) at the same time.

Images