Adjustable support

Abstract

The utility model relates to the technical field of supporting frames, in particular to an adjustable support. The adjustable support comprises a fixing frame, a mounting frame, a driving mechanism and a locking assembly. The fixing frame is used for being fixed to a target base body, the mounting frames are connected to the fixing frame through a guide structure, and the two mounting frames are mounted on the fixing frame at intervals in the size adjusting direction and used for mounting to-be-fixed equipment; the guide structure is used for guiding the mounting frame to move in the size adjusting direction, and the driving mechanism is connected with the mounting frame and used for driving the mounting frame to move in the direction close to or away from each other in the size adjusting direction; the locking assembly is connected between the two mounting frames and can lock the two mounting frames. The adjustable support is wide in application range, capable of being suitable for to-be-fixed devices of different sizes, high in practicability and good in supporting stability. In addition, the two mounting frames can be adjusted without disassembling the fixing frame, and the adjustment convenience can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of support frames, in particular to an adjustable support frame. Background Art

[0002] Currently, many air-conditioning outdoor units need to be fixed to buildings using brackets.

[0003] After the traditional bracket is installed on the building, the size cannot be adjusted, resulting in a narrow scope of application. It cannot adapt to air conditioner outdoor units of different sizes and has poor practicality. Utility Model Content

[0004] The utility model aims to provide an adjustable bracket to alleviate the technical problem of narrow application range of the bracket in the prior art.

[0005] The adjustable bracket provided by the utility model comprises a fixing bracket, a mounting bracket, a driving mechanism and a locking component.

[0006] The fixing frame is used to be fixed to the target substrate, the mounting frame is connected to the fixing frame via a guide structure, there are two mounting frames which are installed on the fixing frame at intervals along the size adjustment direction for mounting the equipment to be fixed; the guide structure is used to guide the mounting frame to move along the size adjustment direction, the driving mechanism is connected to the mounting frame, and is used to drive the mounting frame to move in the direction of approaching or moving away from each other along the size adjustment direction; the locking assembly is connected between the two mounting frames, and can lock the two mounting frames.

[0007] Compared with the prior art, the beneficial effects of the utility model are:

[0008] The adjustable bracket provided by the utility model can use a driving mechanism to drive two mounting frames to move toward or away from each other along the dimension adjustment direction before installing the equipment to be fixed (such as the air conditioner outdoor unit), and after the adjustment is completed, the two mounting frames are locked by a locking assembly. Specifically, when the width dimension of the equipment to be fixed is large, the driving mechanism can be used to drive the two mounting frames to move toward or away from each other along the dimension adjustment direction to increase the spacing between the two mounting frames, and after the adjustment is completed, the locking assembly is used to lock the two mounting frames so that the two mounting frames remain in the current state, in which the two mounting frames have a better supporting effect on the equipment to be fixed with a larger width dimension, and can ensure good support stability; when the width dimension of the equipment to be fixed is small, the driving mechanism can be used to drive the two mounting frames to move toward a square that is close to each other along the dimension adjustment direction to reduce the spacing between the two mounting frames, and after the adjustment is completed, the locking assembly is used to lock the two mounting frames so that the two mounting frames remain in the current state, in which the two mounting frames can smoothly support the equipment to be fixed with a smaller width, and can maintain good support stability.

[0009] Therefore, the adjustable bracket provided by the utility model has a wide range of applications, can adapt to air-conditioning outdoor units of different sizes, is highly practical, and has good supporting stability; in addition, the adjustable bracket provided by the utility model can adjust the distance between the two mounting brackets before the fixing bracket is fixed to the target substrate (such as a building), and can also adjust the two mounting brackets after the fixing bracket is fixed to the target substrate, without disassembling the fixing bracket, which can improve the convenience of adjustment.

[0010] Preferably, as an implementation method, the fixed frame has a fixed plate, and the size adjustment direction is parallel to the fixed plate; the mounting frame includes a connecting rod, a lifting rod and a support assembly, the connecting rod is connected to the fixed plate through the guide structure, the connecting rod is parallel to the fixed plate and perpendicular to the size adjustment direction, the lifting rod is rotatably connected to the connecting rod around a first axis, the first axis is parallel to the size adjustment direction, and the first axes corresponding to the two lifting rods are collinear.

[0011] The support assembly is connected between the connecting rod and the lifting rod, and can support and lock the lifting rod when the lifting rod is opened to a position perpendicular to the fixing plate.

[0012] The beneficial effect is that the space occupied by the adjustable bracket can be greatly reduced, and the convenience of transportation can be improved.

[0013] Preferably, as an implementation mode, the support assembly includes a support rod and a hinge block, the hinge block is slidably connected to the lifting rod and can slide along the length direction of the lifting rod; one end of the support rod is rotatably connected to the connecting rod around a second axis, and the other end is rotatably connected to the hinge block around a third axis, and the second axis and the third axis are both parallel to the first axis.

[0014] When the lifting rod is in the open state, the hinge block is in the limit position and can prevent the lifting rod from swinging in the direction opposite to the opening direction.

[0015] The beneficial effect is that the lifting rod can be smoothly switched between the folded state and the unfolded state.

[0016] Preferably, as an implementable embodiment, the driving mechanism includes a worm, a worm wheel, a screw and a movable seat, the worm and the screw are both rotatably connected to the fixed frame, the screw is parallel to the size adjustment direction, the worm cooperates with the worm wheel, the worm wheel and the screw are coaxially fixed, and the movable seat is threadedly cooperated with the screw; the movable seat is fixed to the mounting frame, the movable seat is slidably cooperated with the fixed frame, and the fixed frame can prevent the circumferential rotation of the movable seat.

[0017] The beneficial effect is that the mounting frame can be driven.

[0018] Preferably, as an implementation method, the screw comprises a first screw portion and a second screw portion with opposite rotation directions, the movable seat comprises a first movable seat and a second movable seat, the first movable seat and the second movable seat are respectively fixed to the two mounting frames, the first movable seat cooperates with the first screw portion, and the second movable seat cooperates with the second screw portion;

[0019] And / or, the fixed frame is provided with a first slide groove with a polygonal cross section, the length direction of the first slide groove is parallel to the size adjustment direction, the screw rod is installed in the first slide groove, the cross-sectional shape of the movable seat is adapted to the cross-sectional shape of the first slide groove, and the movable seat is slidably connected to the first slide groove;

[0020] And / or, a rotating handle is provided at the end of the worm.

[0021] The beneficial effect is that it is easy to operate and can improve installation efficiency.

[0022] Preferably, as an implementable embodiment, the guide structure includes a second slide groove provided on the fixed frame and a support foot provided on the mounting frame, the length direction of the second slide groove is parallel to the size adjustment direction, and the support foot is slidably connected to the second slide groove.

[0023] The beneficial effect is that the guiding effect of the guiding structure is achieved.

[0024] Preferably, as an implementable embodiment, the locking assembly includes a first adjusting member, a second adjusting member and a locking structure, the first adjusting members are two and are respectively fixed to the two mounting frames; the second adjusting member is connected between the two first adjusting members, the locking structures are two, one of the locking structures can release or lock one of the first adjusting member and the second adjusting member, and the other locking structure can release or lock the other of the first adjusting member and the second adjusting member.

[0025] The beneficial effect is that stability during use can be guaranteed.

[0026] Preferably, as an implementable embodiment, the first adjusting member is provided with a plurality of first adjustment holes arranged at intervals along the size adjustment direction, and the second adjusting member is provided with second adjustment holes corresponding to two of the first adjusting members respectively, and the second adjustment holes can be opposite to any of the first adjustment holes on the corresponding first adjusting member.

[0027] The locking structure includes a limit rod and an elastic member, the limit rod is inserted into the corresponding second adjustment hole, one end of the elastic member is connected to the limit rod, and the other end is connected to the second adjustment member, and the elastic member can push the limit rod to insert into the first adjustment hole.

[0028] The beneficial effect is that the first adjusting member and the second adjusting member can be locked.

[0029] Preferably, as an implementation method, a side wall of the limiting rod is provided with a boss, and the elastic member is squeezed between the boss and a hole wall of an end of the second adjusting hole away from the first adjusting hole;

[0030] And / or, the first adjusting member is in the shape of a rod, the second adjusting member is in the shape of a sleeve, two ends of the second adjusting member are respectively sleeved outside the two first adjusting members, and the first adjusting member and the second adjusting member are slidably matched.

[0031] The beneficial effect lies in that the structure is simple and reliable, and the connection reliability between the first adjusting member and the second adjusting member can be improved.

[0032] Preferably, as an implementable embodiment, the boss is slidably matched with the second adjustment hole, and the aperture of the first adjustment hole is smaller than the aperture of the second adjustment hole;

[0033] And / or, a mounting block is fixedly provided on the outer side of the second adjusting member, and the second adjusting hole is opened in the mounting block and penetrates the pipe wall at the corresponding position;

[0034] And / or, a lifting handle is provided at the outer end of the limiting rod.

[0035] The beneficial effect is that the locking reliability of the locking assembly on the first adjusting member and the second adjusting member is improved, and the operation is easy. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0037] Figure 1 A schematic diagram of the assembly structure of the adjustable bracket and the device to be fixed provided in the embodiment of the utility model;

[0038] Figure 2 A schematic diagram of the structure of an adjustable bracket provided in an embodiment of the utility model;

[0039] Figure 3 A schematic diagram of a partial structure of an adjustable bracket provided in an embodiment of the utility model;

[0040] Figure 4 for Figure 2 A magnified view of part A;

[0041] Figure 5 for Figure 2 A magnified view of part B;

[0042] Figure 6 for Figure 2 Enlarged view of part C;

[0043] Figure 7 Another partial structural schematic diagram of the adjustable bracket provided in the embodiment of the utility model;

[0044] Figure 8 A partial cross-sectional view of another partial structure of the adjustable bracket provided in an embodiment of the utility model.

[0045] Description of reference numerals:

[0046] 100-fixed frame; 110-fixed plate; 111-second slide slot; 120-fixed column; 121-first slide slot;

[0047] 200-mounting frame; 210-connecting rod; 220-lifting rod; 221-third slide slot; 230-support assembly; 231-support rod; 232-hinge block; 240-support foot; 241-support rod portion; 242-slider portion;

[0048] 300-driving mechanism; 310-worm; 311-rotating handle; 320-worm wheel; 330-screw; 340-moving seat;

[0049] 400-locking assembly; 410-first adjusting member; 411-first adjusting hole; 420-second adjusting member; 421-mounting block; 430-locking structure; 431-limiting rod; 432-boss; 433-lifting handle; 434-elastic member;

[0050] 500-Equipment to be fixed. DETAILED DESCRIPTION

[0051] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0052] The present invention will be further described in detail below through specific implementation examples in conjunction with the accompanying drawings.

[0053] See also Figure 1 The present embodiment provides an adjustable bracket, which includes a fixing frame 100, a mounting frame 200, a driving mechanism 300 and a locking assembly 400; the fixing frame 100 is used to be fixed to the target substrate, the mounting frame 200 is connected to the fixing frame 100 through a guide structure, and the mounting frame 200 is two and is arranged along the size adjustment direction (such as Figure 1 The guide structure is used to guide the mounting frame 200 to move along the size adjustment direction, and the driving mechanism 300 is connected to the mounting frame 200 to drive the mounting frame 200 to move toward or away from each other along the size adjustment direction; the locking assembly 400 is connected between the two mounting frames 200 and can lock the two mounting frames 200.

[0054] The adjustable bracket provided in this embodiment can use the driving mechanism 300 to drive the two mounting frames 200 to move towards or away from each other along the size adjustment direction before installing the device 500 to be fixed (such as the air conditioner outdoor unit), and after the adjustment is completed, the two mounting frames 200 can be locked using the locking assembly 400. Specifically, when the width dimension of the equipment 500 to be fixed is relatively large, the driving mechanism 300 can be used to drive the two mounting frames 200 to move away from each other along the dimension adjustment direction to increase the spacing between the two mounting frames 200. After the adjustment is completed, the locking assembly 400 is used to lock the two mounting frames 200 so that the two mounting frames 200 remain in the current state. In this state, the two mounting frames 200 have a better supporting effect on the equipment 500 to be fixed with a larger width dimension, and can ensure good supporting stability; when the width dimension of the equipment 500 to be fixed is relatively small, the driving mechanism 300 can be used to drive the two mounting frames 200 to move toward a square close to each other along the dimension adjustment direction to reduce the spacing between the two mounting frames 200. After the adjustment is completed, the locking assembly 400 is used to lock the two mounting frames 200 so that the two mounting frames 200 remain in the current state. In this state, the two mounting frames 200 can smoothly support the equipment 500 to be fixed with a smaller width, and can maintain good supporting stability.

[0055] Therefore, the adjustable bracket provided in the present embodiment has a wide range of applications, can adapt to different sizes of equipment 500 to be fixed (such as air conditioner outdoor units), is highly practical, and has good supporting stability; in addition, the adjustable bracket provided in the present embodiment can adjust the distance between the two mounting frames 200 before the fixing frame 100 is fixed to the target substrate (such as a building), and can also adjust the two mounting frames 200 after the fixing frame 100 is fixed to the target substrate, without the need to disassemble the fixing frame 100, thereby improving the convenience of adjustment.

[0056] The mounting frame 200 is preferably configured as a foldable structure to reduce the space required by the entire adjustable bracket, thereby improving the convenience of storage and transportation.

[0057] See also Figure 1-Figure 4The fixing frame 100 may specifically include a fixing plate 110, and the size adjustment direction is set to be parallel to the fixing plate 110, that is, the two mounting frames 200 are arranged along the extension direction of the fixing plate 110. The mounting frame 200 may specifically include a connecting rod 210, a lifting rod 220 and a supporting assembly 230, the connecting rod 210 is connected to the fixing plate 110 through a guide mechanism, and the connecting rod 210 is set to be parallel to the fixing plate 110 and perpendicular to the size adjustment direction, on this basis, the lifting rod 220 is rotatably connected with the connecting rod 210 around a first axis, so that the first axis is parallel to the size adjustment direction, and the first axes corresponding to the two lifting rods 220 are collinear, and the supporting assembly 230 is connected between the connecting rod 210 and the lifting rod 220, and the supporting assembly 230 can support and lock the lifting rod 220 when the lifting rod 220 is opened to a position perpendicular to the fixing plate 110. When it is necessary to install the equipment 500 to be fixed, the lifting rod 220 can be rotated around the first axis to open it to a position perpendicular to the fixing plate 110. At this time, the lifting rods 220 of the two mounting frames 200 are extended and parallel to each other. The lifting rods 220 are supported and locked by the support assembly 230, and the equipment 500 to be fixed is placed on the two lifting rods 220 to complete the fixation; when it is necessary to store it, the lifting rod 220 can be rotated in the opposite direction around the first axis to fold it to a position parallel to the fixing plate 110. At this time, the lifting rod 220 is basically close to the connecting rod 210, so that the entire adjustable bracket is switched to a folded state, which can greatly reduce the space occupied by the adjustable bracket and improve the convenience of transportation.

[0058] In actual use, the vertical wall of the building can be used as the target substrate, and the fixing plate 110 can be attached and installed on the vertical wall. At this time, the fixing plate 110 and the connecting rod 210 of the mounting frame 200 are both in a vertical state, and the size adjustment direction is parallel to the horizontal direction of the fixing plate 110. The lifting rod 220 can be folded to a vertical state or opened to a horizontal state; when the lifting rod 220 is opened to a horizontal state, the lifting rods 220 of the two mounting frames 200 are in the same horizontal plane. Under the supporting and locking effect of the supporting assembly 230, the two lifting rods 220 can be maintained in the horizontal state, and the device 500 to be fixed can be stably placed on the lifting rod 220. It is preferred that the two mounting frames 200 are arranged to be symmetrical relative to the vertical center plane perpendicular to the fixing plate 110.

[0059] See also Figure 3 and Figure 4In the specific structure of the support assembly 230, a support rod 231 and a hinge block 232 can be set, the hinge block 232 is slidably connected to the lifting rod 220, and the hinge block 232 is set to be able to slide along the length direction of the lifting rod 220; one end of the support rod 231 is rotatably connected to the connecting rod 210 around the second axis, and the other end of the support rod 231 is rotatably connected to the hinge block 232 around the third axis, and the second axis and the third axis are both set to be parallel to the first axis. When the lifting rod 220 rotates around the first axis, the support rod 231 can adaptively rotate around the second axis. At the same time, the hinge block 232 can adaptively slide along the lifting rod 220 and can adaptively rotate around the third axis. In this way, the lifting rod 220 can smoothly switch between the folded state and the opened state. When the lifting rod 220 is switched to the open state, the hinge block 232 just slides to the limit position. The hinge block 232 at this limit position can prevent the lifting rod 220 from swinging in the direction opposite to the opening direction, thereby achieving support locking of the lifting rod 220.

[0060] In actual use, the lifting rod 220 in the open state is in a horizontal state and can be rotated upward to a folded state. When the lifting rod 220 in the folded state is rotated downward to the open state, the hinge block 232 slides to the extreme position, so that the lifting rod 220 cannot continue to rotate downward, thereby achieving support locking of the lifting rod 220.

[0061] Specifically, a third slide groove 221 can be opened on the lifting rod 220 so that the length direction of the third slide groove 221 is consistent with the length direction of the lifting rod 220, and the hinge block 232 is matched with the third slide groove 221. When the lifting rod 220 is rotated to the open state, the hinge block 232 just slides to the end of the third slide groove 221. In this way, the end groove wall of the third slide groove 221 can be used to block the hinge block 232 to prevent the hinge block 232 from continuing to slide, thereby preventing the lifting rod 220 from continuing to swing in the direction opposite to the opening direction.

[0062] See also Figure 2 , Figure 7 and Figure 8In the specific structure of the driving mechanism 300, a worm 310, a worm wheel 320, a screw 330 and a moving seat 340 can be provided. The worm 310 and the screw 330 are both rotatably connected to the fixing frame 100, and the screw 330 is set to be parallel to the size adjustment direction. The worm 310 is matched with the worm wheel 320, the worm wheel 320 and the screw 330 are coaxially fixed, the moving seat 340 is threadedly matched with the screw 330, the moving seat 340 is fixed to the mounting frame 200, and the moving seat 340 is fixed to the mounting frame 200. 0 is slidably matched with the fixing frame 100, and the fixing frame 100 is configured to prevent the circumferential rotation of the moving seat 340, and the worm 310 is driven to rotate, and the worm 310 can drive the worm wheel 320 to rotate, and the worm wheel 320 can drive the screw rod 330 to rotate synchronously with it. Under the restriction of the fixing frame 100, the screw rod 330 can drive the moving seat 340 to move along its axial direction, and then the moving seat 340 can drive the mounting frame 200 to move along the size adjustment direction, so as to realize the driving of the mounting frame 200.

[0063] Specifically, two movable seats 340 can be set on each mounting frame 200, and accordingly, two screw rods 330 are set, the two screw rods 330 are set in parallel, and the two movable seats 340 are respectively matched with the two screw rods 330; at the same time, two worm gears 320 are set to drive the two screw rods 330 respectively, which is beneficial to improving the structural stability.

[0064] Preferably, the above-mentioned screw rod 330 may specifically include a first screw rod portion and a second screw rod portion with opposite rotation directions, and the above-mentioned movable seat 340 may include a first movable seat and a second movable seat, and the first movable seat and the second movable seat may be respectively fixed to the two mounting frames 200, and the first movable seat is matched with the first screw rod portion, and the second movable seat is matched with the second screw rod portion. When the screw rod 330 rotates synchronously with the worm gear 320, the first screw rod portion and the second screw rod portion can respectively drive the first movable seat and the second movable seat to move in opposite directions, and then, the first movable seat and the second movable seat can respectively drive the two mounting frames 200 to move in directions close to or away from each other, that is, the two mounting frames 200 can share the same set of worm 310 and worm gear 320, and only one worm 310 needs to be driven to realize the synchronous driving of the two mounting frames 200, which is easy to operate, can improve the installation efficiency, and is conducive to maintaining the structural stability of the adjustable bracket. In addition, it is also conducive to saving costs. Of course, two sets of driving mechanisms 300 may also be provided to respectively drive the two mounting frames 200 to move toward or away from each other.

[0065] Specifically, a first slide groove 121 with a polygonal (such as a rectangular) cross-section can be set on the fixed frame 100, the length direction of the first slide groove 121 is set to be parallel to the size adjustment direction, the screw rod 330 is installed in the first slide groove 121, the cross-sectional shape of the movable seat 340 is set to be adapted to the cross-sectional shape of the first slide groove 121, and the movable seat 340 is slidably connected to the first slide groove 121. In this way, the sliding cooperation between the movable seat 340 and the fixed frame 100 can be achieved, and the first slide groove 121 can prevent the circumferential rotation of the movable seat 340.

[0066] Preferably, a rotating handle 311 may be provided at the end of the worm 310 , and the worm 310 may be driven by rotating the handle 311 , which makes operation easier.

[0067] Specifically, a fixed column 120 extending along the size adjustment direction can be set on the fixed plate 110, and a first slide groove 121 can be opened on the fixed column 120 to improve the structural reliability; when there are two first slide grooves 121, two fixed columns 120 can also be set, and the two fixed columns 120 can be set in parallel.

[0068] See also Figure 2 and Figure 5 A second slide groove 111 can be provided on the fixing frame 100, and a support leg 240 can be provided on the mounting frame 200. The second slide groove 111 and the support leg 240 can constitute the above-mentioned guide structure, wherein the length direction of the second slide groove 111 is parallel to the above-mentioned size adjustment direction, and the support leg 240 is slidably connected to the second slide groove 111. Under the restriction of the second slide groove 111, the support leg 240 can only move along the size adjustment direction, and accordingly, the mounting frame 200 can only move along the size adjustment direction, thereby realizing the guiding effect of the guide structure.

[0069] Specifically, two legs 240 may be provided on each mounting frame 200, and correspondingly, two second slide slots 111 are provided so that the two legs 240 of the mounting frame 200 are respectively slidably matched with the two second slide slots 111, which is beneficial to improving the stability of the structure. The legs 240 may include a support rod portion 241 and a slider portion 242, wherein the slider portion 242 is provided at one end of the support rod portion 241, and the other end of the support rod portion 241 may be fixedly connected to the connecting rod 210.

[0070] See also Figure 2 and Figure 6In the specific structure of the locking assembly 400, a first adjusting member 410, a second adjusting member 420 and a locking structure 430 can be provided. Two first adjusting members 410 are provided, and the two first adjusting members 410 are respectively fixed to the two mounting frames 200. In this way, the two first adjusting members 410 can move synchronously with the corresponding mounting frames 200 and can limit the movement of the corresponding mounting frames 200. The second adjusting member 420 is connected between the two first adjusting members 410, and two locking structures 430 are provided. When it is necessary to adjust the spacing between the two mounting frames 200, the two locking structures 430 can be adjusted to a released state, so that one of the locking structures 430 releases one of the first adjusting members 410 and the second adjusting member 420, and the other locking structure 430 releases the other first adjusting member 410 and the second adjusting member 420. In this way, the two first adjusting members 410 are no longer restricted by the second adjusting member 420 and the locking structure 430, and can move freely, thereby enabling the two mounting frames 200 to be adjusted. 00 are driven by the driving mechanism 300 and move along the size adjustment direction toward or away from each other until the spacing between the two mounting frames 200 is adjusted to the target value; at this time, the two locking structures 430 can be adjusted to a locking state, so that one of the locking structures 430 can be used to lock one of the first adjusting members 410 and the second adjusting member 420, and the other locking structure 430 can be used to lock the other first adjusting member 410 and the second adjusting member 420. In this way, the two first adjusting members 410 will be locked by the second adjusting member 420 and the locking structure 430 and cannot move relative to each other, thereby ensuring stability during use.

[0071] A plurality of first adjustment holes 411 arranged at intervals along the size adjustment direction can be provided on the first adjustment member 410, and second adjustment holes corresponding to the two first adjustment members 410 can be provided on the second adjustment member 420, and the second adjustment holes on the second adjustment member 420 can be opposite to any first adjustment holes 411 on the corresponding first adjustment member 410; the locking structure 430 can specifically include a limit rod 431 and an elastic member 434, wherein the limit rod 431 is inserted into the corresponding second adjustment hole, one end of the elastic member 434 is connected to the limit rod 431, and the other end is connected to the second adjustment member 420, so that one of the first adjustment members 410 is locked. Taking the joint member 410 as an example, after the two mounting frames 200 are adjusted to a suitable spacing, the second adjustment hole on the second adjustment member 420 corresponding to the first adjustment member 410 will be opposite to a first adjustment hole 411 on the first adjustment member 410, and the limiting rod 431 can push the limiting rod 431 into the first adjustment hole 411 opposite thereto under the elastic force of the elastic member 434, and under the continuous elastic force of the elastic member 434, the limiting rod 431 can be kept in the first adjustment hole 411 and the second adjustment hole opposite thereto, so that the limiting rod 431 can be used to lock the first adjustment member 410 and the second adjustment member 420. Preferably, a spring can be used as the elastic member 434.

[0072] Preferably, a boss 432 can be provided on the side wall of the limiting rod 431, and the elastic member 434 can be installed between the boss 432 and the hole wall of the second adjustment hole at one end away from the first adjustment hole 411, so that the elastic member 434 is squeezed into a compressed state. In this way, when a first adjustment hole 411 on the first limiting member 410 moves to a position relative to the corresponding limiting rod 431, the elastic member 434 can push the limiting rod 431 into the first adjustment hole 411 without the action of external force, and the structure is simple and reliable.

[0073] Preferably, the boss 432 on the limit rod 431 can be slidably matched with the second adjustment hole, and the aperture of the first adjustment hole 411 can be set to be smaller than the aperture of the second adjustment hole. In this way, the boss 432 can only slide in the second adjustment hole, and the boss 432 can be used to limit the stroke of the limit rod 431.

[0074] The first adjusting member 410 can be set to a rod shape, and the second adjusting member 420 can be set to a sleeve shape. The two ends of the second adjusting member 420 are respectively put outside the two first adjusting members 410, and the first adjusting member 410 and the second adjusting member 420 are made to slide together. In this way, the connection reliability of the first adjusting member 410 and the second adjusting member 420 can be improved.

[0075] Preferably, a mounting block 421 can be fixedly arranged on the outer side of the second adjusting member 420, and a second adjusting hole is opened on the mounting block 421 and penetrates the tube wall at the corresponding position, which is equivalent to increasing the thickness of the local position corresponding to the second adjusting hole on the second adjusting member 420, which is beneficial to improving the structural strength of the second adjusting hole, and further improving the locking reliability of the locking assembly 400 on the first adjusting member 410 and the second adjusting member 420.

[0076] A lifting handle 433 may be provided at the outer end of the limiting rod 431, and the limiting rod 431 may be pulled out by holding the lifting handle 433 to contact the locking of the first adjusting member 410 and the second adjusting member 420 by the limiting rod 431, so as to facilitate operation. The lifting handle 433 may be a spherical structure.

[0077] In the description of the present invention, it should be noted that the terms "upper", "lower", "vertical", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0078] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. An adjustable bracket, characterized in that: It comprises a fixing frame (100), a mounting frame (200), a driving mechanism (300) and a locking assembly (400); The fixing frame (100) is used to be fixed to a target substrate; the mounting frame (200) is connected to the fixing frame (100) via a guide structure; the mounting frames (200) are two and are installed on the fixing frame (100) at intervals along a size adjustment direction, and are used to install a device to be fixed; the guide structure is used to guide the mounting frame (200) to move along the size adjustment direction; the driving mechanism (300) is connected to the mounting frame (200) and is used to drive the mounting frame (200) to move in a direction of approaching or moving away from each other along the size adjustment direction; the locking assembly (400) is connected between the two mounting frames (200) and is capable of locking the two mounting frames (200).

2. The adjustable bracket according to claim 1, characterized in that: The fixing frame (100) has a fixing plate (110), and the dimension adjustment direction is parallel to the fixing plate (110); the mounting frame (200) comprises a connecting rod (210), a lifting rod (220) and a supporting assembly (230); the connecting rod (210) is connected to the fixing plate (110) through the guiding structure; the connecting rod (210) is parallel to the fixing plate (110) and perpendicular to the dimension adjustment direction; the lifting rod (220) is rotatably connected to the connecting rod (210) around a first axis, the first axis is parallel to the dimension adjustment direction, and the first axes corresponding to the two lifting rods (220) are collinear; The support assembly (230) is connected between the connecting rod (210) and the lifting rod (220), and is capable of supporting and locking the lifting rod (220) when the lifting rod (220) is opened to a position perpendicular to the fixing plate (110).

3. The adjustable bracket according to claim 2, characterized in that: The support assembly (230) comprises a support rod (231) and a hinge block (232); the hinge block (232) is slidably connected to the lifting rod (220) and is capable of sliding along the length direction of the lifting rod (220); one end of the support rod (231) is rotatably connected to the connecting rod (210) around a second axis, and the other end is rotatably connected to the hinge block (232) around a third axis; the second axis and the third axis are both parallel to the first axis; When the lifting rod (220) is in an open state, the hinge block (232) is in an extreme position and can prevent the lifting rod (220) from swinging in a direction opposite to the opening direction.

4. The adjustable bracket according to claim 1, characterized in that: The driving mechanism (300) comprises a worm (310), a worm wheel (320), a screw (330) and a movable seat (340); the worm (310) and the screw (330) are both rotatably connected to the fixed frame (100); the screw (330) is parallel to the size adjustment direction; the worm (310) cooperates with the worm wheel (320); the worm wheel (320) and the screw (330) are coaxially fixedly connected; the movable seat (340) and the screw (330) are threadedly matched; the movable seat (340) is fixedly connected to the mounting frame (200); the movable seat (340) and the fixed frame (100) are slidably matched; and the fixed frame (100) can prevent the circumferential rotation of the movable seat (340).

5. The adjustable bracket according to claim 4, characterized in that: The screw rod (330) comprises a first screw rod portion and a second screw rod portion with opposite rotation directions, the movable seat (340) comprises a first movable seat and a second movable seat, the first movable seat and the second movable seat are respectively fixed to the two mounting frames (200), the first movable seat cooperates with the first screw rod portion, and the second movable seat cooperates with the second screw rod portion; And / or, the fixed frame (100) is provided with a first slide groove (121) with a polygonal cross section, the length direction of the first slide groove (121) is parallel to the size adjustment direction, the screw rod (330) is installed in the first slide groove (121), the cross-sectional shape of the movable seat (340) is adapted to the cross-sectional shape of the first slide groove (121), and the movable seat (340) is slidably connected to the first slide groove (121); And / or, a rotating handle (311) is provided at the end of the worm (310).

6. The adjustable bracket according to claim 1, characterized in that: The guide structure comprises a second slide groove (111) provided on the fixing frame (100) and a support leg (240) provided on the mounting frame (200), the length direction of the second slide groove (111) is parallel to the size adjustment direction, and the support leg (240) is slidably connected to the second slide groove (111).

7. The adjustable bracket according to any one of claims 1 to 6, characterized in that: The locking assembly (400) comprises a first adjusting member (410), a second adjusting member (420) and a locking structure (430), wherein the number of the first adjusting members (410) is two and they are respectively fixed to the two mounting frames (200); the second adjusting member (420) is connected between the two first adjusting members (410), and the number of the locking structures (430) is two, wherein one of the locking structures (430) is capable of releasing or locking one of the first adjusting members (410) and the second adjusting member (420), and the other of the locking structures (430) is capable of releasing or locking the other of the first adjusting members (410) and the second adjusting member (420).

8. The adjustable bracket according to claim 7, characterized in that: The first adjusting member (410) is provided with a plurality of first adjusting holes (411) arranged at intervals along the size adjustment direction, and the second adjusting member (420) is provided with second adjusting holes corresponding to two of the first adjusting members (410), respectively, and the second adjusting holes can be opposite to any of the first adjusting holes (411) on the corresponding first adjusting member (410); The locking structure (430) includes a limiting rod (431) and an elastic member (434), wherein the limiting rod (431) is inserted into the corresponding second adjustment hole, one end of the elastic member (434) is connected to the limiting rod (431), and the other end is connected to the second adjustment member (420), and the elastic member (434) can push the limiting rod (431) to be inserted into the first adjustment hole (411).

9. The adjustable bracket according to claim 8, characterized in that: A boss (432) is provided on the side wall of the limiting rod (431), and the elastic member (434) is squeezed between the boss (432) and the hole wall at one end of the second adjusting hole away from the first adjusting hole (411); And / or, the first adjusting member (410) is rod-shaped, the second adjusting member (420) is sleeve-shaped, the two ends of the second adjusting member (420) are respectively sleeved outside the two first adjusting members (410), and the first adjusting member (410) and the second adjusting member (420) are slidably matched.

10. The adjustable bracket according to claim 9, characterized in that: The boss (432) is slidably matched with the second adjustment hole, and the aperture of the first adjustment hole (411) is smaller than the aperture of the second adjustment hole; And / or, a mounting block (421) is fixedly provided on the outer side of the second adjusting member (420), and the second adjusting hole is opened in the mounting block (421) and penetrates the pipe wall at a corresponding position; And / or, a lifting handle (433) is provided at the outer end of the limiting rod (431).

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