Adjustable support

Abstract

The utility model relates to an adjustable support, which comprises a support body, a support rod and a support rod, the supporting base is mounted at the bottom end of the supporting main body; the supporting legs are dispersedly and fixedly arranged at the bottom of the supporting base, and the supporting directions are all in the length direction of the supporting body; the lifting unit comprises a placement part, a pressing part, a power output part and a plurality of telescopic wheel sets; the power output part is located on the placement part, the pressing part is hinged to the power output part, the multiple telescopic wheel sets are scattered and telescopically arranged at the bottom of the supporting base in the length direction, each telescopic wheel set comprises a telescopic mechanism and wheels, each telescopic mechanism can receive power, and when the pressing part is not pressed, the power output part does not output power; each telescopic end retracts back to each wheel; when the pressing part is pressed, power output by the power output part is gradually increased, the telescopic ends gradually stretch out of the wheels, and when the pressing part is pressed in place, the wheels make contact with the ground. According to the utility model, support movement and stable supporting can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of measurement, and particularly relates to an adjustable bracket. Background Art

[0002] Brackets are commonly used in the field of measurement. Especially when using a laser tracker, since the laser tracker needs to be placed at a certain height, it needs to be placed on a bracket. Currently, most laser tracker brackets are fixed triangular brackets. When it is necessary to move the position of the device during use, it needs to be lifted, which is a heavy burden and there are unsafe factors such as tipping and bumping during the movement, and there is a risk of damaging the device. Content of the Utility Model

[0003] In order to solve the above technical problems, the purpose of the utility model is to provide an adjustable bracket. When it is necessary to move the device on it, the wheels are pushed out downward to make the bracket movable, reducing the burden on the user for picking up and placing and not easily damaging the device. When it is necessary to use the device, the wheels are lifted and the support legs support the ground to achieve stable placement.

[0004] In order to solve the above technical problems, the following technical solutions are proposed by the utility model to solve:

[0005] This application relates to an adjustable bracket, including:

[0006] A support main body, on the top of which the required device is placed;

[0007] A support base, which is installed at the bottom end of the support main body;

[0008] A plurality of support legs, which are dispersedly fixed at the bottom of the support base and the supporting directions are all along the length direction of the support main body;

[0009] A lifting unit, which includes a placement part, a pressing part, a power output part and a plurality of telescopic wheel groups; the power output part is located on the placement part, the pressing part is hinged to the power output part, the plurality of telescopic wheel groups are dispersedly and telescopically arranged along the length direction at the bottom of the support base, the telescopic wheel group includes a telescopic mechanism and a wheel connected to the telescopic end of the telescopic mechanism, and each telescopic mechanism can receive the power;

[0010] Wherein, when the pressing part is not pressed, the power output part does not output power, and each telescopic end retracts each wheel, so that the bottom end of each wheel is closer to the support main body than the bottom end of each support leg;

[0011] During the process of pressing the pressing part, the power output by the power output part gradually increases, and each telescopic end gradually extends each wheel, and when the pressing part is pressed in place, the bottom end of each wheel is farther from the support main body than the bottom end of each support leg.

[0012] In some embodiments of the present application, the adjustable bracket has an accommodation space therein, and a through portion communicating with the accommodation space is formed on the side wall of the support body. The through portion includes a first through portion and a second through portion communicating with each other. The opening length of the first through portion in the length direction of the support body is greater than the opening length of the second through portion in the length direction.

[0013] Both the power output portion and the placement portion are located in the accommodation space, and the pressing end of the pressing portion extends out through the through portion.

[0014] The placement portion is rotatably installed in the accommodation space. When the pressing portion is not pressed, the pressing portion abuts against the side wall of the first through portion.

[0015] When pressing along the opening length direction of the first through portion, the power output by the power output portion gradually increases.

[0016] When the pressing portion is pressed in place and drives the placement portion to rotate, so that the pressing portion enters the second through portion to lock the pressing portion, each telescopic end extends out of each wheel, and the bottommost end of each wheel is farther away from the bottommost end of each support leg relative to the support body.

[0017] In some embodiments of the present application, the support base includes three support arms radially arranged at 120 degrees to each other at the bottom of the support body, and the number of the plurality of support legs is three.

[0018] A support leg is fixedly provided at the bottom of the free end of each of the three support arms.

[0019] A receiving groove is formed at the bottom of the support arm, and the opening of the receiving groove faces the extending distal end of the support leg.

[0020] The number of the plurality of telescopic wheel sets is three.

[0021] The telescopic wheel sets are respectively fixedly provided in the receiving grooves of the corresponding support arms.

[0022] In some embodiments of the present application, the support body is hollow and communicates with the space enclosed by the three support arms, and a part of the space formed by the communication forms the accommodation space.

[0023] In some embodiments of the present application, the required equipment is a laser tracker.

[0024] In some embodiments of the present application, the power output portion includes:

[0025] A hydraulic cylinder is disposed on the placement portion and has a plurality of hydraulic discharge ports. A piston rod of the hydraulic cylinder is hinged to the pressing portion, and is configured to discharge hydraulic pressure from the plurality of hydraulic discharge ports when the pressing portion is pressed.

[0026] A plurality of hydraulic pipelines, one end of each hydraulic pipeline is connected to a corresponding hydraulic discharge port, and the other end is connected to a corresponding telescopic mechanism.

[0027] Wherein, the number of the plurality of hydraulic discharge ports, the number of the plurality of hydraulic pipelines, and the number of the plurality of telescopic wheel sets are the same as each other.

[0028] In some embodiments of the present application, the wheel includes:

[0029] A wheel body;

[0030] A wheel frame, the wheel body is mounted on the wheel frame, and the wheel frame is connected to the telescopic mechanism.

[0031] In some embodiments of the present application, the pressing portion can be operated by foot, and the through portion is formed on an outer side wall of an end of the support body close to the support base.

[0032] In some embodiments of the present application, the pressing portion includes a rod body and the pressing end, the pressing end is formed at an end of the rod body, and an area of the pressing end is larger than an area of the rod body.

[0033] In some embodiments of the present application, the through portion is an L-shaped through portion.

[0034] Advantages and beneficial effects of the adjustable bracket provided by some embodiments of the present application are:

[0035] When it is necessary to use the device and stabilize the bracket, the pressing portion is in an initial unpressed state. At this time, the power output portion does not work, and the telescopic mechanism drives the wheels to retract, so that the lowermost ends of the wheels are closer to the support body than the lowermost ends of the support legs. That is, the wheels do not contact the ground while the support legs contact the ground, so that the entire bracket is stably supported by the support legs. At this time, the required device can be stably used;

[0036] When it is necessary to move the bracket, the pressing portion is pressed. At this time, the power output portion outputs power, so that the telescopic mechanism can perform an extending action. In this way, the wheels are driven to extend until the lowermost ends of the wheels are farther from the support body than the lowermost ends of the support legs. That is, the wheels contact the ground while the support legs do not contact the ground, so that the entire bracket is supported by the wheels. At this time, the bracket can be conveniently moved by using the wheels, the manual picking and placing task amount is reduced, and the risks such as the device being knocked due to tilting and taking the device are also avoided. Description of the Drawings

[0037] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments of the present invention or the prior art. Obviously, the drawings described below are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0038] Figure 1 Structural diagram of the adjustable bracket proposed by the present invention;

[0039] Figure 2 Bottom view of the adjustable bracket proposed by the present invention;

[0040] Figure 3 Structural diagram of the adjustable bracket proposed by the present invention, in which the lifting unit is not shown;

[0041] Figure 4 is Figure 3 Enlarged view of part A in;

[0042] Figure 5 Structural diagram of the lifting unit in the adjustable bracket proposed by the present invention.

[0043] Reference numerals:

[0044] 100, adjustable bracket; 110, support main body; 111, through part; 1111, first through part; 1112, second through part; 120, support base; 121, support arm; 1211, receiving groove; 130, support leg; 140, placement part; 150, pressing part; 151, pressing end; 152, pressing body; 160, power output part; 161, hydraulic cylinder; 162, hydraulic pipeline; 163, hydraulic discharge port; 170, telescopic wheel set; 171, telescopic mechanism; 172, wheels; 1721, wheel frame; 1722, wheel body; 180, support cylinder;

[0045] 200, laser tracker. Detailed implementation manners

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments.

[0047] Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model. In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model 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 thus should not be construed as a limitation to the present utility model.

[0048] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0049] The terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise stated, the meaning of "a plurality" is two or more.

[0050] In order to make the device compatible with both convenient movement and stable use, refer to Figures 1 to 5 and this application relates to an adjustable bracket 100 for a device.

[0051] The device can be installed on the adjustable bracket 100. With the help of the adjustable bracket 100, when it is necessary to move the device, the bracket can be moved by using the wheels 172 on the bracket, and when it is necessary to use or stabilize the device, the supporting legs 130 on the bracket can be used for stable support.

[0052] In order to achieve the above technical purpose, refer to Figure 1 and the adjustable bracket 100 includes a support main body 110, a support base 120, a plurality of support legs 130, and a lifting unit.

[0053] Refer to Figure 1 and Figure 2 and the top of the support main body 110 places the required device (such as a laser tracker 200) and has a certain height.

[0054] This height generally needs to be determined according to the height required by the device during testing. Of course, the support main body 110 can also be designed as a support main body 110 with adjustable height, and the height of the support main body 110 can be adjusted according to the different installation heights of the device, which will not be elaborated here.

[0055] When placing the adjustable bracket 100 on the ground, the length direction of the support main body 110 is the vertical up and down direction.

[0056] See Figure 1 and Figure 2 , the support base 120 is placed at the bottom end of the support main body 110 to play a supporting role.

[0057] A plurality of support legs 130 are fixedly provided at the bottom of the support base 120. The plurality of support legs 130 are dispersedly fixed at the bottom of the support base 120 and the supporting directions are all along the length direction of the support main body 110. That is, when placing the adjustable bracket 100 on the ground, the bottoms of the support legs 130 contact the ground to support the upper components thereon (including the support main body 110, the support base 120 and the laser tracker 200).

[0058] The arrangement positions of the plurality of support legs 130 are based on the principle of stably supporting the upper components thereon. For example, they can be evenly spaced along the circumferential direction, arranged in a triangle, arranged in a square, etc.

[0059] In some embodiments of the present application, based on the principle of triangular stability, see Figure 1 and Figure 2 , the support base 120 includes three support arms 121 that are radially arranged at 120 degrees to each other at the bottom of the support main body 110, and the number of corresponding support legs 130 is also selected to be three.

[0060] One support leg 130 is correspondingly arranged on one support arm 121 to form a triangular stable structure.

[0061] In order to meet the requirements of the bracket being movable and stably supportable, see Figure 5 , the lifting unit includes a placement part 140, a pressing part 150, a power output part 160 and a plurality of telescopic wheel groups 170.

[0062] The plurality of telescopic wheel groups 170 are dispersedly and telescopically arranged at the bottom of the support base 120 along the length direction of the support main body 110. The number of the plurality of telescopic wheel groups 170 is based on the principle of facilitating and stably moving the bracket, and is not limited here.

[0063] See Figure 1 and Figure 5 , in some embodiments of the present application, based on the principle of triangular stability, for the three support legs 130 and the three support arms 121, three groups of telescopic wheel groups 170 are also provided, and the structure of each group of telescopic wheel groups 170 is the same.

[0064] Each telescopic wheel set 170 includes a telescopic mechanism 171 and a wheel 172. The wheel 172 is connected to the telescopic mechanism 171. When the telescopic mechanism 171 performs an extending action, the wheel 172 extends in a direction away from the telescopic mechanism 171. When the telescopic mechanism 171 performs a retracting action, the wheel 172 retracts in a direction close to the telescopic mechanism 171.

[0065] The telescopic direction of the wheel 172 is consistent with the supporting direction of the supporting leg 130. When the wheel 172 extends, its bottom is farther from the supporting main body 110 relative to the bottom of the supporting leg 130. Thus, when the wheel 172 extends, only the wheel 172 is in contact with the ground. When the wheel 172 retracts, its bottom is closer to the supporting main body 110 relative to the bottom of the supporting leg 130. Thus, when the wheel 172 retracts, only the supporting leg 130 is in contact with the ground.

[0066] The power output part 160 is located on the placement part 140. The pressing part 150 is hinged to the power output part 160, and the power output part 160 can output power to each telescopic mechanism 170 when the pressing part 150 is pressed.

[0067] The pressing part 150 has three states: an initial state, a pressing state, and a fully pressed state.

[0068] When the pressing part 150 is not pressed, it is in the initial state, and the power output part 160 does not output power. At this time, the telescopic mechanism 170 does not drive the wheels 172 to extend, and only the supporting leg 130 is in contact with the ground.

[0069] During the pressing process of the pressing part 150, it is in the pressing state, and the power output by the power output part 160 gradually increases. At this time, the telescopic mechanism 170 drives the wheels 172 to extend gradually.

[0070] When the pressing part 150 is fully pressed, it is in the fully pressed state, and the power output by the power output part 160 no longer increases. Each wheel 172 is in contact with the ground and the supporting leg 1130 is separated from the ground. At this time, the wheels 172 can be used to move the bracket.

[0071] In the fully pressed state, the pressing part 150 can be locked to stabilize the bracket, prevent the pressing part 150 from being released and returning to the initial position, and each telescopic mechanism 171 performs a retracting action.

[0072] In some embodiments of the present application, in order to arrange the lifting unit, the bracket 100 has an accommodation space (not shown). The accommodation space can be in the support base 120, or in the support main body 110, or part in the support base 120 and part in the support main body 110, as long as it can hide the parts of the lifting unit that are not willing to be exposed.

[0073] To arrange the three telescopic wheel sets 170, refer to Figures 2 to 4 , accommodating grooves 1211 communicating with the accommodating space are respectively formed at the bottom of each support arm 121, and the opening of the accommodating groove 1211 faces the extending distal end of the support leg 130.

[0074] In some embodiments of the present application, the support legs 130 on each support arm 121 are arranged at the bottom of the outermost distal end of the extension of the support arm 121 (refer to Figure 4 ), and the accommodating groove 1211 is located inside the support leg 130.

[0075] The corresponding telescopic wheel set 170 is fixedly arranged in the corresponding accommodating groove 1211. Specifically, the telescopic mechanism 171 is fixedly arranged in the corresponding accommodating groove 1211, and the telescopic part (not shown) of the telescopic mechanism 171 is connected to the wheel 172 for driving the wheel 172 to expand and contract when the telescopic mechanism 171 operates.

[0076] In some embodiments of the present application, to arrange the wheel 172, refer to Figure 5 , the wheel 172 includes a wheel body 1722 and a wheel frame 1721.

[0077] The wheel frame 1721 is connected to the telescopic mechanism 171, and the wheel body 1722 is installed on the wheel frame 1721.

[0078] The wheel 172 can be a universal wheel for convenient movement.

[0079] In some embodiments of the present application, to reduce costs and also facilitate the formation of the accommodating space, the support main body 110 is hollow, and a part of the space formed by the support main body 110 and the above three support arms 121 forms the accommodating space as described above.

[0080] To operably press the pressing part 140 from outside the accommodating space, refer to Figure 3 and Figure 4 , a through hole 111 is formed on the side wall of the support main body 110, and the through hole 111 communicates with the accommodating space so that the pressing end 151 of the pressing part 150 extends out through the through hole 111. Refer to Figure 1 and Figure 2 .

[0081] To implement the pressing operation of the pressing part 140 and the operation of maintaining the pressing in place, refer to Figure 3 and Figure 4 , the through hole 111 includes a first through hole 1111 and a second through hole 1112 that communicate with each other.

[0082] The opening length of the first through portion 1111 along the length direction of the support body 110 is greater than the opening length of the second through portion 1112 along the length direction of the support body 110.

[0083] See Figure 2 , when the pressing portion 150 is not pressed and is in the initial position, the pressing portion 150 abuts against the side wall of the first through portion 1111.

[0084] In some embodiments of the present application, the pressing portion 150 is connected to the power output portion 160. When the pressing portion 150 is pressed, the power output portion 160 outputs power to each telescopic mechanism 171 to cause each telescopic mechanism 171 to perform an extending action. When the pressing portion 150 is released to the initial position, each telescopic mechanism 171 performs a retracting action.

[0085] The placement portion 140 rotates and is located within the accommodation space, and the power output portion 160 and the pressing portion 150 are provided thereon. The pressing portion 150 is hingedly connected to the power output portion 160 and can apply pressure or release pressure to the power output portion 160. And when the pressure is applied downward to the in-place position, in order to avoid the just-extended wheel 172 from retracting due to the reset of the pressing portion 150, the pressing portion 150 will move from the first through portion 1111 to the second through portion 1112. During this movement process, driving the pressing portion 150 together with the placement portion 140 to rotate can enable the pressing portion 150 to move from the first through portion 1111 to the second through portion 1112.

[0086] That is, the pressing portion 150 enters the second through portion 1112 to realize the limit locking of the pressing portion 150.

[0087] In some embodiments of the present application, see Figure 4 , the through portion 111 is designed to be L-shaped, which is convenient for the operation of the pressing portion 150.

[0088] In some embodiments of the present application, see Figure 5 , a support cylinder 180 can be arranged in the accommodation space, and the placement portion 140 is rotationally arranged on the support cylinder 180, so that the placement portion 140 can rotate relative to the support cylinder 180 after an external force is applied, so as to realize the rotation of the pressing portion 150 together with the placement portion 140 relative to the support cylinder 180.

[0089] In some embodiments of the present application, see Figure 5 , the power output portion 160 includes a hydraulic cylinder 161 and a plurality of hydraulic pipelines ( Figure 5 One hydraulic pipeline 162 is shown in

[0090] See Figure 5 , the hydraulic cylinder 161 is placed on the placement portion 140 and has a plurality of hydraulic discharge ports ( Figure 5One of the hydraulic outlets 163 is shown. The piston rod of the hydraulic cylinder 161 is hinged to the pressing part 150. When the pressing part 150 is pressed, the hydraulic pressure in the hydraulic cylinder 161 is discharged from each hydraulic outlet 163 to the corresponding telescopic mechanism 171 by means of the linkage of the piston rod.

[0091] Since both the placement part 140 and the power output part 160 are located in the accommodation space, and each telescopic mechanism 171 is located in the accommodation groove 1211 of the corresponding support leg 130 (see Figure 2 ), therefore, the hydraulic pressure discharged from the hydraulic cylinder 161 is introduced into the telescopic mechanism 171 by means of the hydraulic pipeline 162.

[0092] When setting the three support legs 130 and the three telescopic wheel sets 170 as described above, three hydraulic outlets 163 and three hydraulic pipelines 162 respectively connected to the hydraulic outlets 163 will be correspondingly set.

[0093] For the convenience of operation, see Figure 1 and Figure 2 , the pressing part 150 is a pressing rod that can be operated by foot. The through hole 111 as described above is formed on the outer side wall of the end of the support main body 110 close to the support base 120, that is, the pressing part 150 is located at the bottom of the support main body 110 (see Figure 1 and Figure 2 ), which is convenient for the user to operate by foot.

[0094] In some embodiments of the present application, see Figure 5 , the pressing part 150 includes a pressing body 152 and a pressing end 151. The pressing end 151 is formed at the end of the pressing body 152 and extends out of the through hole 111 (see Figure 1 and Figure 2 ).

[0095] See Figure 5 , the pressing body 152 is hinged to the piston rod of the hydraulic cylinder 161, and the area of the pressing end 151 is larger than the area of the pressing body 152 (see Figure 2 ). In this way, the contact area between the pressing end 151 and the foot is increased, which is convenient for operating the pressing and realizes the pressing reliability.

[0096] The working process is described as follows.

[0097] In the initial state, see Figure 2 , the pressing part 150 is not pressed, the wheel 172 does not contact the ground, and only the support leg 130 contacts the ground to support the entire bracket 100. At this time, it can be used to stably support the equipment.

[0098] When the mobile device is needed, the user steps on the pressing end 151. The pressing end 151 moves downward along the first through portion 1111. At the same time, the hydraulic pressure in the hydraulic cylinder 161 is discharged into the three hydraulic pipelines 162 through the three hydraulic discharge ports 163 respectively, and then discharged into each telescopic mechanism 171. The hydraulic pressure in each telescopic mechanism 171 increases, causing the telescopic mechanism 171 to perform an extending action, thereby driving the wheels 172 to gradually extend.

[0099] When the pressing end 151 is pressed to the lowermost end of the first through portion 1111, the wheels 172 extend in place. At this time, the wheels 172 contact the ground and the support legs 130 are separated from the ground contact. The user moves the pressing end 151 from the first through portion 1111 to the second through portion 1112 to limit the pressing end 151 and prevent the pressing end 151 from resetting and causing the wheels 172 to retract. At this time, the wheels 172 are locked in the extended position.

[0100] Since only the wheels 172 are in contact with the ground at this time, the bracket can be moved by rolling the wheels 172, without the need for the user to carry it, saving the workload and also avoiding problems such as equipment bumping and damage caused by carrying.

[0101] After moving the bracket 100 to a designated position, for example, when the user needs to use the device for measurement, the user can step on the pressing end 151 again to make the pressing end 151 return from the second through portion 1112 to the first through portion 1111 to release the pressing end 151 and the pressing end 151 drives the piston rod of the hydraulic cylinder 161 to reset, so that the hydraulic pressure pressed into each telescopic mechanism 171 returns to the hydraulic cylinder 161, and the telescopic mechanism 171 performs a retracting action, thereby gradually retracting the wheels 172 until they are separated from the ground contact. After that, the support legs 130 fall to contact the ground to achieve stable support for the bracket.

[0102] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. And these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An adjustable bracket, characterized in that: include: Support the main body, on top of which the required equipment is placed; A support base, which is installed at the bottom end of the support body; A plurality of support legs, which are dispersed and fixed at the bottom of the support base and whose support directions are all along the length direction of the support body; A lifting unit, comprising a placement portion, a pressing portion, a power output portion and a plurality of telescopic wheel groups; the power output portion is located on the placement portion, the pressing portion is hinged to the power output portion, the plurality of telescopic wheel groups are dispersed and telescopically arranged at the bottom of the support base along the length direction, the telescopic wheel group comprises a telescopic mechanism and a wheel connected to the telescopic end of the telescopic mechanism, and each telescopic mechanism can receive the power; Wherein, when the pressing part is not pressed, the power output part does not output power, and each telescopic end retracts each wheel so that the bottom end of each wheel is closer to the support body relative to the bottom end of each support leg; When the pressing part is pressed, the power output by the power output part gradually increases, and each telescopic end gradually extends out of each wheel. When the pressing part is pressed into place, the bottom end of each wheel is farther away from the support body relative to the bottom end of each support leg.

2. The adjustable bracket according to claim 1, characterized in that: The adjustable bracket has an accommodating space therein, and a through portion penetrating the accommodating space is formed on the side wall of the support body, the through portion includes a first through portion and a second through portion that are connected to each other, and the opening length of the first through portion in the length direction of the support body is greater than the opening length of the second through portion in the length direction; The power output part and the placement part are both located in the accommodating space, and the pressing end of the pressing part extends through the through part; The placement portion is rotatably mounted in the accommodating space, and when the pressing portion is not pressed, the pressing portion abuts against the side wall of the first through portion; When pressing along the length direction of the first through portion, the power output of the power output portion gradually increases; When the pressing portion is pressed into place and drives the placement portion to rotate, the pressing portion enters the second through portion to lock the pressing portion, and each telescopic end extends out of each wheel, so that the bottom end of each wheel is farther away from the support body relative to the bottom end of each support leg.

3. The adjustable bracket according to claim 1, characterized in that: The support base comprises three support arms radially arranged at 120 degrees from each other at the bottom of the support body, and the number of the plurality of support legs is three; A supporting leg is fixedly provided at the bottom of each free end of the three supporting arms; A receiving groove is formed at the bottom of the support arm, and an opening of the receiving groove faces the extended distal end of the support leg; The number of the multiple telescopic wheel groups is three; The telescopic wheel groups are respectively fixed in the receiving grooves of the corresponding support arms.

4. The adjustable bracket according to claim 2, characterized in that: The supporting body is hollow and is connected with the space enclosed by the three supporting arms, and part of the space formed by the connection forms the accommodating space.

5. The adjustable bracket according to claim 1, characterized in that: The required equipment is a laser tracker.

6. The adjustable bracket according to claim 1, characterized in that: The power output unit comprises: A hydraulic cylinder, which is placed on the placement portion and has a plurality of hydraulic discharge ports, wherein a piston rod of the hydraulic cylinder is hinged to the pressing portion, and is used for discharging hydraulic pressure from the plurality of hydraulic discharge ports when the pressing portion is pressed; A plurality of hydraulic pipelines, each hydraulic pipeline having one end connected to a corresponding hydraulic outlet and the other end connected to a corresponding telescopic mechanism; Wherein, the number of the plurality of hydraulic outlets, the number of the plurality of hydraulic pipelines and the number of the plurality of telescopic wheel groups are the same as each other.

7. The adjustable bracket according to claim 1, characterized in that: The wheel comprises: Wheel body; A wheel frame, the wheel body is mounted on the wheel frame, and the wheel frame is connected to the telescopic mechanism.

8. The adjustable bracket according to claim 2, characterized in that: The pressing portion can be operated by foot, and the through portion is formed on the outer side wall of the end portion of the support body close to the support base.

9. The adjustable bracket according to claim 8, characterized in that: The pressing portion includes a rod body and the pressing end, wherein the pressing end is formed at an end of the rod body and an area of ​​the pressing end is larger than an area of ​​the rod body.

10. The adjustable bracket according to claim 2, characterized in that: The through portion is an L-shaped through portion.

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