Bearing device

Abstract

The utility model relates to a bearing device which comprises a base provided with a supporting face. The rack is arranged on one side of the supporting surface; the supporting roller is at least rotationally connected with the rack and is in contact with the supporting surface; the elastic piece is mounted on the rack so as to enable the elastic piece to bias the supporting roller away from the rack; wherein the rack and the supporting roller form sliding connection perpendicular to the rotating axis of the supporting roller; the base is provided with or connected with a locking structure; the rack is provided with or connected with a locking device capable of being matched with the locking structure so that the rack can at least have a locking state and an unlocking state relative to the base. According to the technical scheme, in the unlocking state, under the action of the elastic piece, the distance is formed between the rack and the supporting face, and the position of the rack can be rapidly adjusted; when the position does not need to be adjusted, under the action of the locking device and the locking structure, the position of the supporting roller can be adjusted, so that the rack is in contact with the supporting surface, the contact surface is increased, and the stability of the rack is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of bearing platforms, and in particular to a bearing device. Background Art

[0002] At present, in automobile production lines, there is generally a process of adjusting the position of equipment or workpieces, and a mobile platform that can quickly adjust the position is needed. This type of mobile platform generally has a fixed base and a movable stand, and the equipment or workpiece is placed on the stand.

[0003] In the prior art, the movement between the stand and the base is mainly achieved through sliding or roller solutions. The sliding solution is a sliding friction during the movement of the stand, and the friction is large and it is easy to wear and fail. As for the roller solution, rollers are installed at the bottom of the stand to achieve movement, which can reduce the contact surface and save effort. However, when there is no need to move, the stability of the stand supported by rollers is poor. Utility Model Content

[0004] The embodiment of the present application provides a load-bearing device, which improves the safety of the load-bearing device and at least partially solves the above-mentioned technical problems.

[0005] In order to achieve the above-mentioned purpose, a carrying device is provided according to the present application, comprising:

[0006] a base having a support surface;

[0007] A stand, arranged on one side of the supporting surface;

[0008] a supporting roller, at least in rotational connection with the frame and in contact with the supporting surface;

[0009] an elastic member mounted to the stand so that the elastic member biases the support roller away from the stand;

[0010] Among them, the stand and the support roller form a sliding connection perpendicular to the rotation axis of the support roller; the base has or is connected to a locking structure; the stand has or is connected to a locking device that can cooperate with the locking structure so that the stand has at least a locked state and an unlocked state relative to the base; when in the unlocked state, there is a distance between the stand and the support surface; when in the locked state, the stand is in contact with the support surface.

[0011] Optionally, the locking structure is a locking groove provided on the base; the locking device includes: a locking piece provided with an external thread; a locking block provided with a locking screw hole that can cooperate with the external thread of the locking piece; wherein, the stand is provided with a locking through hole for the locking piece to pass through so that the locking piece can be at least partially inserted into the locking screw hole.

[0012] Optionally, the locking groove is a T-shaped groove; and the locking block is a T-shaped block.

[0013] Optionally, the base has or is connected to a guide structure; the supporting device further includes: a guide roller, which is at least rotationally connected to the frame and in contact with the guide structure; wherein the rotation axis direction of the guide roller is perpendicular to the rotation axis direction of the support roller.

[0014] Optionally, the guide structure is a guide groove provided on the base, and the guide roller is at least partially located in the guide groove.

[0015] Optionally, the supporting device further includes: a mounting block fixedly connected to the platform; a lifting block slidingly connected to the mounting block perpendicular to the rotation axis of the support roller; wherein the support roller is rotatably connected to the lifting block; and the elastic member is mounted on the mounting block to bias the lifting block.

[0016] Optionally, the mounting block is formed with a mounting cavity and an adjustment screw hole, and the mounting cavity and the adjustment screw hole are connected; the supporting device also includes: an adjustment member, which is provided with an external thread that can cooperate with the adjustment screw hole; wherein, the elastic member is arranged in the mounting cavity, and the elastic member is located between the adjustment member and the lifting block; the adjustment member at least partially passes through the adjustment screw hole and is placed in the mounting cavity.

[0017] Optionally, the bearing device further includes: a gasket, which is arranged in the installation cavity; the gasket is located between the adjusting member and the elastic member.

[0018] Optionally, the supporting device also includes: a rotating screw, which is rotationally connected to one of the base and the frame; and a screw nut, which is connected to the other of the base and the frame; wherein the screw nut is mounted on the rotating screw so that the base and the frame produce relative movement when the rotating screw rotates.

[0019] Optionally, the bearing device further comprises: a floating member, which forms a floating connection with the lead screw nut and one of the stands in a direction perpendicular to the axis of the rotating lead screw, and forms a fixed connection with the lead screw nut and one of the stands.

[0020] Optionally, the bearing device further includes: a driver connected to the rotary screw to drive the rotary screw to rotate.

[0021] In the bearing device of the embodiment of the present application, through the above technical solution, the position adjustment of the stand is realized by the support roller, the stand and the support roller are slidably connected and an elastic member is set to bias the support roller away from the stand, thereby reducing the contact surface and avoiding sliding friction with the base when the stand moves, so that the stand moves smoothly and with less effort. At the same time, by setting a locking structure on the base and a locking device on the stand that can cooperate with the locking structure, the stand has a locked state and an unlocked state relative to the base. When in the unlocked state, under the action of the elastic member, there is a gap between the stand and the support surface, and the stand can be quickly adjusted in position; when the position does not need to be adjusted, under the action of the locking device and the locking structure, the position of the support roller can be adjusted so that the stand contacts the support surface, thereby increasing the contact surface and ensuring the stability of the stand.

[0022] Other features and advantages of the present application will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0024] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings, wherein the same figure numbers represent the same parts in the following description.

[0025] Figure 1 is a schematic diagram of the overall structure of a carrying device provided in an exemplary embodiment of the present application;

[0026] Figure 2 It is a schematic structural diagram of a part of a carrying device provided in an exemplary embodiment of the present application;

[0027] Figure 3 is a schematic structural diagram of another part of the carrying device provided in an exemplary embodiment of the present application;

[0028] Figure 4 yes Figure 3 An enlarged schematic diagram of a portion of the image.

[0029] Figure 5 yes Figure 3 A schematic structural diagram of another viewing angle of the portion shown;

[0030] Figure 6 yes Figure 5 An enlarged schematic diagram of a portion of the image.

[0031] Figure 7 is a cross-sectional view showing the installation relationship between the support roller and the installation block in the carrying device provided in the exemplary embodiment of the present application;

[0032] Figure 8 is an exploded view showing the assembly relationship between the support roller and the mounting block in the load-bearing device provided in the exemplary embodiment of the present application;

[0033] Fig. 9 is a schematic structural diagram of a position-limiting member in a load-bearing device provided in an exemplary embodiment of the present application;

[0034] Fig.10 is a cross-sectional view showing the assembly relationship between the lifting block and the mounting block in the carrying device provided in the exemplary embodiment of the present application;

[0035] Fig.11 is a schematic diagram of the structure of the driver and the lead screw transmission in the carrying device provided in the exemplary embodiment of the present application;

[0036] Fig.12 is a schematic structural diagram of another carrying device provided in an exemplary embodiment of the present application;

[0037] Fig.13 It is a schematic diagram of the structure of a driver and a lead screw transmission in another carrying device provided in an exemplary embodiment of the present application.

[0038] Description of reference numerals:

[0039] 100. Carrying device;

[0040] 111, base; 111a, support surface; 111b, locking groove; 111c, guide groove;

[0041] 112, stand; 112a, contact surface; 112b, locking through hole;

[0042] 121, supporting roller; 122, elastic member; 123, adjusting member; 124, gasket;

[0043] 130, locking device; 131, locking member; 132, locking block; 132a, locking screw hole;

[0044] 141. guide roller; 142. mounting plate; 143. fixing member;

[0045] 151, mounting block; 151a, mounting cavity; 151b, adjustment screw hole; 151c, threaded hole;

[0046] 152, lifting block; 152a, receiving slot; 152b, pin hole; 152c, mounting hole; 152d, limiting hole;

[0047] 153, mounting shaft; 153a, section; 154, stop pin;

[0048] 160, stopper; 161, end portion; 162, smooth portion; 163, threaded portion;

[0049] 171. Rotary screw; 172. Screw nut; 173. Bearing seat; 174. Coupling; 175. Floating part;

[0050] 180. Driver; 181. Right-angle reducer; 182. Hand crank;

[0051] 191. Adjust the foot cup; 192. Scale;

[0052] 280, driver; 281, drive motor;

[0053] Z, first direction; X, second direction; Y, third direction. DETAILED DESCRIPTION

[0054] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0055] It should be noted that the first direction Z of the present application indicates the up-down direction only for the convenience of introducing the specific embodiments of the present application. There is no absolute corresponding relationship between the first direction Z and the up-down direction. Similarly, there is no absolute corresponding relationship between the second direction X and the left-right direction, and the third direction Y and the front-back direction. Moreover, the first direction Z, the second direction X, and the third direction Y of the present application are only for expressing relative positional relationships. They only indicate approximate directions, not absolute geometric relationships.

[0056] This application provides a carrying device 100, please refer to Figure 1 to Figure 2 , Figures 5 to 8 The carrying device 100 includes: a base 111, a stand 112, a supporting roller 121 and an elastic member 122.

[0057] The base 111 has a support surface 111a. The stand 112 is arranged on one side of the support surface 111a. The stand 112 is used to fix the installation equipment or workpiece, and can move together with the stand 112 when the stand 112 is adjusted. There are multiple support rollers 121, which are at least rotatably connected with the stand 112 and in contact with the support surface 111a, and the stand 112 and the support roller 121 are slidably connected perpendicular to the rotation axis of the support roller 121. For example, the rotation axis of the support roller 121 is arranged along the third direction Y, and the support roller 121 can slide along the first direction Z relative to the stand 112.

[0058] The elastic member 122 is mounted on the stand 112 so that the elastic member 122 biases the support roller 121 away from the stand 112, which is equivalent to the stand 112 being carried on the support roller 121 at least through the elastic member 122. By adjusting the deformation degree of the elastic member 122, the position of the support roller 121 relative to the stand 112 in the first direction Z can be adjusted, that is, the distance of the support roller 121 protruding from the stand 112 can be adjusted to ensure that there is a gap between the stand 112 and the base 111 when the stand 112 is in a moving position. The elastic member 122 can be a coil spring, a gas spring or a spring, etc., which is not specifically limited here.

[0059] The base 111 has or is connected to a locking structure. Here, “having or being connected” means that the structure of the base 111 itself has a locking structure, or the attachment to which the base 111 is connected is provided with a locking structure. The setting method of the locking structure can be selected according to the needs. The stand 112 has or is connected to a locking device 130 that can cooperate with the locking structure so that the stand 112 has at least a locked state and an unlocked state relative to the base 111. Here, “having or being connected” also means that the structure of the stand 112 itself has a locking device 130, or the attachment to which the stand 112 is connected is provided with a locking device 130. The setting method of the locking device 130 can be selected according to the needs.

[0060] When in the unlocked state, there is a distance between the stand 112 and the supporting surface 111 a , and the supporting roller 121 protrudes from the stand 112 , so that the position of the stand 112 can be adjusted along the second direction X relative to the base 111 .

[0061] When in the locked state, the stand 112 contacts the support surface 111a, and the stand 112 is fixed in the desired working position. Accordingly, the bottom of the stand 112 is provided with a contact surface 112a that matches the support surface 111a (can be parallel to each other or have matching concave and convex matching), ensuring that there is a suitable contact area between the stand 112 and the base 111.

[0062] The present application realizes the position adjustment of the stand 112 through the support roller 121. The stand 112 is slidably connected with the support roller 121 and an elastic member 122 is provided to bias the support roller 121 away from the stand 112, thereby reducing the contact surface 112a. When the stand 112 moves, sliding friction with the base 111 is avoided, so that the movement of the stand 112 is smoother and less labor-intensive. At the same time, by providing a locking structure on the base 111 and a locking device 130 that can cooperate with the locking structure on the stand 112, the stand 112 has a locked state and an unlocked state relative to the base 111. When in the unlocked state, under the action of the elastic member 122, the stand 112 is supported by the support roller 121, so that there is a distance between the stand 112 and the support surface 111a, and the stand 112 can be quickly adjusted in position; when there is no need to adjust the position, under the action of the locking device 130 and the locking structure, the position of the support roller 121 can be adjusted so that the stand 112 contacts the support surface 111a, thereby increasing the contact surface 112a and ensuring the stability of the stand 112.

[0063] refer to Figures 2 to 6 In some embodiments, the locking structure is a locking groove 111 b provided on the base 111 , and the locking groove 111 b extends along the second direction X. The locking device 130 includes a locking member 131 and a locking block 132 .

[0064] The locking member 131 is provided with an external thread; at least part of the locking block 132 is disposed in the locking groove 111b, and the locking block 132 and the locking groove 111b have matching shapes, which are not specifically limited here, and it is only necessary to ensure that the locking block 132 cannot be separated from the locking groove 111b along the first direction Z. The locking block 132 is provided with a locking screw hole 132a that can cooperate with the external thread of the locking member 131, and the stand 112 is provided with a locking through hole 112b for the locking member 131 to pass through so that the locking member 131 is at least partially placed in the locking screw hole 132a.

[0065] The size of the locking member 131 inserted into the locking block 132 is adjusted by cooperating the external thread of the locking member 131 with the locking screw hole 132a, thereby adjusting the relative position between the locking block 132 and the stand 112, so that the stand 112 and the base 111 can be switched between the unlocked state and the locked state.

[0066] In an optional solution, a plurality of locking blocks 132 may be provided in the same locking groove 111b to improve the locking effect between the stand 112 and the base 111. A plurality of locking grooves 111b may be provided at intervals along the third direction Y, and correspondingly, a plurality of groups of locking blocks 132 cooperating with the locking grooves 111b are also provided on the stand 112 to further improve the locking effect.

[0067] When the position of the stand 112 needs to be adjusted, first all the locking members 131 and the locking blocks 132 are loosened, and then the multiple supporting rollers 121 jointly support the stand 112, so that the contact surface 112a of the stand 112 is separated from the supporting surface 111a of the base 111, and then the position of the stand 112 can be adjusted. After the position adjustment of the stand 112 is completed, all the locking members 131 are re-locked in a preset order, and the stand 112 can be fixed and locked on the base 111, and at this time, the supporting surface 111a and the locking members 131 are in contact.

[0068] refer to Figures 2 to 6 In some embodiments, the locking groove 111b is a T-shaped groove, and the locking block 132 is a T-shaped block. When the locking member 131 is rotated, due to the T-shaped fit, the locking block 132 and the groove wall of the locking groove 111b are locked, and the locking effect is achieved while the structure is simple, which facilitates the processing of the locking groove 111b in the base 111.

[0069] In an optional solution, the locking block 132 may be a T-nut, and the locking member 131 may be a screw.

[0070] refer to Figures 2 to 6 In some embodiments, the base 111 has or is connected to a guide structure; the “has or is connected to” here is similar to the above, and will not be repeated here. The carrying device 100 further includes: a guide roller 141.

[0071] The guide roller 141 is at least rotatably connected to the stage 112 and in contact with the guide structure; the rotation axis direction of the guide roller 141 is perpendicular to the rotation axis direction of the support roller 121, that is, the rotation axis of the guide roller 141 is arranged along the first direction Z. By providing the guide roller 141 and the guide structure, when the stage 112 is adjusted in position, the movement of the stage 112 is guided to ensure that the stage 112 adjusts its position according to a predetermined trajectory.

[0072] refer to Figures 2 to 6 In some embodiments, the guide structure is a guide groove 111c provided on the base 111, the guide groove 111c extends along the second direction X, the guide roller 141 is at least partially located in the guide groove 111c, and the guide roller 141 is close to the inner wall of the guide groove 111c. When the stage 112 is adjusted in position, the guide roller 141 moves along the guide groove 111c to play a guiding role.

[0073] In an optional solution, a plurality of guide grooves 111c are provided, and the plurality of guide grooves 111c are arranged at intervals along the third direction Y; a plurality of guide rollers 141 are arranged in the same guide groove 111c to improve the guiding effect.

[0074] In an optional solution, the carrying device 100 further includes: a mounting plate 142 and a fixing member 143. The guide roller 141 is detachably connected to the stand 112 via the mounting plate 142, and the guide roller 141 is rotatably connected to the mounting plate 142. The fixing member 143 has an external thread over at least a portion of its length, and is used to fix the guide roller 141 and the mounting plate 142.

[0075] refer to Figure 4 , Figures 6 to 8 In some embodiments, the carrying device 100 further includes: a mounting block 151 and a lifting block 152 .

[0076] The mounting block 151 is fixedly connected to the stand 112; the lifting block 152 is slidably connected to the mounting block 151 at right angles to the axis of rotation of the supporting roller 121, i.e., the lifting block 152 can slide in the first direction Z relative to the mounting block 151; the supporting roller 121 is rotatably connected to the lifting block 152, and the elastic member 122 is installed on the mounting block 151 to bias the lifting block 152.

[0077] By setting the lifting block 152 and the mounting block 151, the sliding connection and the rotation connection between the support roller 121 and the stand 112 are realized at the same time. When the locking member 131 and the locking block 132 are locked, the support roller 121 can directly press the elastic member 122, so that the support roller 121 retracts into the mounting cavity 151a, so that the contact surface 112a of the stand 112 contacts the support surface 111a of the base 111, and the contact surface 112a is increased to ensure the stability of the stand 112 after locking. At the same time, when the support roller 121 is installed with the stand 112, the support roller 121, the elastic member 122, the lifting block 152 and the mounting block 151 can be assembled into a whole in advance, and then installed to the stand 112 to realize modular assembly.

[0078] refer to Figures 7 to 10 In some embodiments, the lifting block 152 is provided with a receiving groove 152a, the opening of which is arranged in a direction away from the elastic member 122, and at least part of the supporting roller 121 is arranged in the receiving groove 152a. The carrying device 100 further includes: a mounting shaft 153 and a stop pin 154. The supporting roller 121 is rotatably sleeved on the mounting shaft 153, and both ends of the mounting shaft 153 are respectively connected to the lifting block 152 for stopping rotation.

[0079] The lifting block 152 is also provided with a pin hole 152b and a mounting hole 152c matched with the mounting shaft 153, and the pin hole 152b is communicated with the mounting hole 152c. The side wall of the mounting shaft 153 is provided with a cut surface 153a, and the cut surface 153a is arranged parallel to the axis of the mounting shaft 153. When the two ends of the mounting shaft 153 are respectively assembled to the mounting holes 152c, the cut surface 153a is aligned with the pin hole 152b, and then the anti-rotation pin 154 is inserted into the pin hole 152b and the anti-rotation pin 154 is contacted with the cut surface 153a, so as to realize the anti-rotation connection between the mounting shaft 153 and the lifting block 152, and the structure is simple and easy to assemble.

[0080] Since the bearing capacity of the support roller 121 is related to the compression of the elastic member 122, and when the stand 112 is adjusted, the stand 112 and the base 111 need to maintain a suitable distance. When carrying equipment or workpieces of different masses, the compression of the elastic member 122 will be different. When the mass is larger, the compression is larger, which may cause the distance between the stand 112 and the base 111 to be too small or even to touch; when the mass is smaller, the compression is smaller, which may cause the distance between the stand 112 and the base 111 to be too large. At this time, the center of gravity of the stand 112 is high, and the stability during position adjustment is poor.

[0081] refer to Figures 7 to 10 In some embodiments, the mounting block 151 is formed with a mounting cavity 151a and an adjusting screw hole 151b, the mounting cavity 151a and the adjusting screw hole 151b are connected, and at least part of the lifting block 152 can be slidably located in the mounting cavity 151a. The carrying device 100 further includes: an adjusting member 123.

[0082] The adjusting member 123 is provided with an external thread that can cooperate with the adjusting screw hole 151b; the elastic member 122 is arranged in the installation cavity 151a, and the elastic member 122 is located between the adjusting member 123 and the lifting block 152; the adjusting member 123 at least partially passes through the adjusting screw hole 151b and is placed in the installation cavity 151a.

[0083] By changing the length of the adjustment member 123 inserted into the installation cavity 151a, the position of the top of the elastic member 122 in the installation cavity 151a can be adjusted to compensate for the change in the distance between the stand 112 and the base 111 caused by installing equipment or workpieces of different masses on the stand 112, thereby avoiding the distance between the stand 112 and the base 111 being too large or too small.

[0084] It can also be understood that the purpose of adjusting the bearing capacity of the supporting roller 121 is achieved by changing the compression amount of the elastic member 122 through the adjusting member 123 and adjusting the elastic force of the elastic member 122 .

[0085] refer to Figures 8 to 10In some embodiments, the lifting block 152 is provided with a plurality of through-limiting holes 152d, and the limiting holes 152d are arranged perpendicular to the axial direction of the mounting hole 152c. The carrying device 100 further includes: a limiting member 160.

[0086] The lifting block 152 is connected to the mounting block 151 by floating up and down through the stopper 160. The floating connection here means that after the stopper 160 is connected to the mounting block 151, there is still a certain amount of vertical movement space. The size of the movement space is determined by the design structure. The preferred floating connection movement space size is 3mm.

[0087] There are multiple limiters 160, and the limiters 160 are sequentially provided with an end 161, a smooth surface 162 and a threaded portion 163 along the length direction. The inner wall of the installation cavity 151a is also provided with a threaded hole 151c that matches the threaded portion 163. The limiter 160 passes through the limit hole 152d of the lifting block 152 so that the threaded portion 163 is connected to the threaded hole 151c, preventing the lifting block 152 from slipping out of the installation cavity 151a. The smooth surface 162 corresponds to the limit hole 152d, and the length of the smooth surface 162 is greater than the distance between the end 161 and the upper surface of the lifting block 152, so that the lifting block 152 has a suitable space for moving up and down in the installation cavity 151a.

[0088] refer to Figure 7 and Figure 8 In some embodiments, the carrier device 100 further includes: a gasket 124 .

[0089] The gasket 124 is disposed in the mounting cavity 151a and is located between the adjusting member 123 and the elastic member 122. By disposing the gasket 124, the elastic member 122 is prevented from being twisted when the adjusting member 123 rotates, and the wear of the elastic member 122 and the adjusting member 123 can also be reduced.

[0090] refer to Figure 1 and Fig.11 In some embodiments, the supporting device 100 further includes: a rotating screw 171 and a screw nut 172 .

[0091] The rotating lead screw 171 is connected to one of the base 111 and the gantry 112 in rotation; the lead screw nut 172 is connected to the other of the base 111 and the gantry 112; the lead screw nut 172 is mounted on the rotating lead screw 171 to convert the rotational motion of the rotating lead screw 171 into the linear motion of the lead screw nut 172, so that the base 111 and the gantry 112 move relative to each other when the rotating lead screw 171 rotates. The position of the gantry 112 is adjusted by setting the rotating lead screw 171 and the lead screw nut 172, and the position adjustment accuracy of the gantry 112 is adjusted.

[0092] Exemplarily, a bearing seat 173 is fixedly connected to the base 111 , and the rotation of the rotary screw 171 is connected to the bearing seat 173 . The screw nut 172 is connected to the stand 112 .

[0093] refer to Figure 1 and Fig.11 In some embodiments, the carrying device 100 further includes: a floating member 175 .

[0094] The floating member 175 forms a floating connection with one of the lead screw nut 172 and the stand 112 in a direction perpendicular to the axis of the rotating lead screw 171, and forms a fixed connection with one of the lead screw nut 172 and the stand 112. By setting the floating member 175 to be in a floating connection with one of the lead screw nut 172 and the stand 112, the distance change between the stand 112 and the base 111 during the switching process between the locked state and the unlocked state is adapted.

[0095] Exemplarily, the floating member 175 is fixedly connected to the stand 112, and the floating member 175 and the lead screw nut 172 are connected in a floating manner. The floating connection in this application means that after the floating member 175 and the lead screw nut 172 are fixedly connected, there is still a certain amount of activity space (when the floating member 175 and the lead screw nut 172 are connected in an up-and-down floating manner, the floating member 175 and the lead screw nut 172 have up-and-down activity space), and the size of the activity space is determined by the design structure. Preferably, the size of the activity space between the floating member 175 and the lead screw nut 172 is 3 mm.

[0096] refer to Fig.11 In some embodiments, the carrying device 100 further includes a driver 180. The driver 180 is connected to the rotary screw 171 to drive the rotary screw 171 to rotate.

[0097] refer to Fig.11 In some embodiments, the driver 180 includes: a right-angle reducer 181 and a hand crank 182. The output end of the right-angle reducer 181 is connected to one end of the rotary screw 171 through a coupling 174, and the torque from the outside is transmitted from the right-angle reducer 181 to the rotary screw 171. The hand crank 182 is connected to the input end of the right-angle reducer 181. Under the action of external force, the hand crank 182 can transmit the external force to the rotary screw 171 through the right-angle reducer 181 and the coupling 174, drive the rotary screw 171 to rotate, and then drive the screw nut 172 to move linearly, so as to adjust the position of the stand 112.

[0098] refer to Figure 2 and Fig.13In some embodiments, the driver 280 includes a drive motor 281, which transmits the torque of the drive motor 281 to the rotary screw 171 through the coupling 174, drives the rotary screw 171 to rotate, and then drives the screw nut 172 to move linearly, thereby adjusting the position of the stand 112.

[0099] refer to Figure 1 In some embodiments, the carrying device 100 further includes: an adjusting foot cup 191. The adjusting foot cup 191 is disposed at the bottom of the base 111, and the adjusting foot cup 191 is used to adjust the horizontality of the base 111 when it is placed.

[0100] refer to Figure 1 In some embodiments, the carrying device 100 further includes: a scale 192. The scale 192 is disposed on the base 111 along the second direction X, and is used to confirm the position value when the stand 112 is adjusted.

[0101] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0102] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0103] The embodiments, implementation methods and related technical features of the present application can be combined and replaced with each other without conflict.

[0104] The above are only preferred embodiments of the present application and do not constitute any form of limitation to the present application. Although the present application has been described in examples with different focuses on the descriptions of various embodiments, for the parts not described in detail in a certain embodiment, reference can be made to the relevant effective embodiments of other embodiments. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.

Claims

1. A carrying device, characterized in that: include: a base having a support surface; A stand, arranged on one side of the supporting surface; a supporting roller, at least in rotational connection with the frame and in contact with the supporting surface; an elastic member mounted to the stand so that the elastic member biases the support roller away from the stand; Among them, the stand and the support roller form a sliding connection perpendicular to the rotation axis of the support roller; the base has or is connected to a locking structure; the stand has or is connected to a locking device that can cooperate with the locking structure so that the stand has at least a locked state and an unlocked state relative to the base; when in the unlocked state, there is a distance between the stand and the support surface; when in the locked state, the stand is in contact with the support surface.

2. The carrying device according to claim 1, characterized in that: The locking structure is a locking groove provided on the base; the locking device comprises: A locking piece having an external thread; The locking block is provided with a locking screw hole capable of cooperating with the external thread of the locking member; Wherein, the stand is provided with a locking through hole for the locking member to pass through so that the locking member is at least partially placed in the locking screw hole.

3. The carrying device according to claim 2, characterized in that: The locking groove is a T-shaped groove; the locking block is a T-shaped block.

4. The carrying device according to claim 1, characterized in that: The base has or is connected with a guide structure; The carrying device also includes: a guide roller, at least in rotational connection with the platform and in contact with the guide structure; Wherein, the rotation axis direction of the guide roller is perpendicular to the rotation axis direction of the support roller.

5. The carrying device according to claim 4, characterized in that: The guide structure is a guide groove provided on the base, and the guide roller is at least partially located in the guide groove.

6. The carrying device according to any one of claims 1 to 5, characterized in that: The carrying device also includes: A mounting block, fixedly connected to the frame; A lifting block, which forms a sliding connection with the mounting block perpendicular to the rotation axis of the supporting roller; Wherein, the supporting roller is rotatably connected to the lifting block; and the elastic member is installed on the installation block to bias the lifting block.

7. The carrying device according to claim 6, characterized in that: The mounting block is formed with a mounting cavity and an adjusting screw hole, and the mounting cavity and the adjusting screw hole are in communication; the bearing device further comprises: An adjusting piece, provided with an external thread capable of cooperating with the adjusting screw hole; Wherein, the elastic member is arranged in the installation cavity, and the elastic member is located between the adjustment member and the lifting block; the adjustment member at least partially passes through the adjustment screw hole and is placed in the installation cavity.

8. The carrying device according to claim 7, characterized in that: The carrying device also includes: A gasket, disposed in the mounting cavity; The gasket is located between the adjusting member and the elastic member.

9. The carrying device according to any one of claims 1 to 5, characterized in that: The carrying device also includes: A rotary screw is rotatably connected to the base and one of the frames; A lead screw nut connected to the other of the base and the stand; Wherein, the screw nut is mounted on the rotating screw so that the base and the platform can move relative to each other when the rotating screw rotates.

10. The carrying device according to claim 9, characterized in that: The carrying device also includes: A floating member forms a floating connection with the lead screw nut and one of the frames in a direction perpendicular to the axis of the rotary lead screw, and forms a fixed connection with the lead screw nut and one of the frames.

11. The carrying device according to claim 9, characterized in that: The carrying device also includes: A driver is connected to the rotary screw to drive the rotary screw to rotate.

Images