Jacking device and supporting device

Abstract

The utility model provides a jacking device which comprises a supporting assembly capable of stretching out and drawing back in the first direction. The jacking-up assembly is movably connected to the supporting assembly and can be switched between a first position state and a second position state, and when the jacking-up assembly is in the first position state, the supporting assembly keeps stretching so that the jacking-up device can be in a jacking-up state; and the switching assembly is movably connected to the supporting assembly and the jacking assembly and used for switching the switching assembly from the first position state to the second position state, and when the jacking assembly is in the second position state, the supporting assembly keeps contracting so that the jacking device can be in a retracted state. The utility model further provides a supporting device.

Description

Technical Field

[0001] The present application relates to a lifter and a supporting device comprising the lifter. Background Art

[0002] Existing ultrasonic equipment is usually installed on a foot cup, and the height of the foot cup is adjusted by manually turning a screw to adjust the height of the ultrasonic equipment.

[0003] Since the whole equipment is relatively low, you need to reach the bottom of the whole equipment to screw the screws, which is inconvenient and easy to pinch your hands. In addition, the self-locking casters are unstable, and the ultrasonic equipment is prone to shaking during operation. Utility Model Content

[0004] A first aspect of the present application provides a lifting device, comprising: a supporting assembly, which can be extended and retracted along a first direction; a lifting assembly, movably connected to the supporting assembly, and can switch between a first position state and a second position state, and when the lifting assembly is in the first position state, the supporting assembly remains extended so that the lifting device is in a lifting state; and a switching assembly, movably connected to the supporting assembly and the lifting assembly, and used for switching the switching assembly from the first position state to the second position state, and when the lifting assembly is in the second position state, the supporting assembly remains contracted so that the lifting device is in a retracted state.

[0005] In at least one embodiment of the present application, the support assembly includes a top plate, a first support rod, a second support rod and a foot cup; the first support rod is fixedly connected to the top plate, the first support rod is partially sleeved outside the second support rod, and the foot cup is fixedly connected to an end of the second support rod away from the top plate; during the extension and retraction process of the support assembly, the first support rod and the second support rod produce relative displacement along the first direction.

[0006] In at least one embodiment of the present application, the lifting component includes: a pedal structure; a first screw rod, movably connecting the pedal structure and the second support rod; and an elastic structure, located in the first support rod, connecting the first support rod and the first screw rod; when the lifting component is in the first position state, the elastic structure stores elastic potential energy, and when the elastic structure releases the elastic potential energy, the switching component can switch the lifting component from the first position state to the second position state.

[0007] In at least one embodiment of the present application, the elastic structure includes an adjusting rod and a tension spring, the adjusting rod is fixedly connected to the first support rod, one end of the tension spring is sleeved on the adjusting rod, and the other end is sleeved on the first screw rod; and / or the first support rod is provided with a first strip-shaped guide groove and a second guide groove, and the length extension direction of the first guide groove and the second guide groove is consistent with the first direction.

[0008] In at least one embodiment of the present application, the pedal structure includes a first pedal and a first connecting portion and a second connecting portion extending from the first pedal, the first support rod and the second support rod are located between the first connecting portion and the second connecting portion, and the first screw rod movably connects the second support rod, the first connecting portion and the second connecting portion.

[0009] In at least one embodiment of the present application, the switching assembly includes: a second pedal; and a connecting plate, one end of the connecting plate is connected to the second connecting portion, and the other end of the connecting plate is connected to the second pedal and the first connecting portion.

[0010] In at least one embodiment of the present application, the switching component further includes a second screw rod, and the second screw rod passes through the first connecting portion, the second connecting portion and both ends of the connecting plate.

[0011] In at least one embodiment of the present application, the top plate extends toward one side of the first support rod to form a first connecting ear and a second connecting ear, and the switching assembly also includes a third screw; the third screw passes through the second pedal, the connecting plate, the first connecting ear and the second connecting ear respectively; one end of the connecting plate is located between the second pedal and the first connecting ear.

[0012] In at least one embodiment of the present application, the connecting plate and the pedal structure are a connecting rod structure, which are connected by the first screw, the second screw and the third screw; when the lifting device is in the lifting state, the connecting plate and the pedal structure are in a straight line, the movement direction of the third screw is perpendicular to the force direction, and the effective rotational torque is zero.

[0013] The second aspect of the present application provides a supporting device, comprising: a base plate having a first surface and a second surface arranged opposite to each other; a shell connected to the first surface to form an installation space; a plurality of casters connected to the second surface at intervals; and a plurality of lifters, each of the lifters being any of the above-mentioned lifters, and the supporting assembly of each of the lifters being connected to the second surface.

[0014] The above-mentioned lifter includes a supporting component, a lifting component and a switching component. The position state of the lifting component can be switched by stepping on the switching component, thereby controlling the extension and retraction of the supporting component, changing the height of the supporting component, and realizing the switching of the lifter between the lifting state and the retracted state. The stepping action does not require the user to put both hands into a lower position for operation, which simplifies the operation process and can effectively avoid the risk of hand pinching. When the lifter is applied to the supporting device, the lifter is controlled to be in a retracted state during the process of moving the ultrasonic equipment, so that the lifter and the casters roll on the ground; during the operation of the ultrasonic equipment, the lifter can be controlled to be in a lifting state, the casters are suspended in the air, and the surface of the foot cup contacts the ground. Since the surface of the foot cup is flat, the supporting device will not move at this time. Therefore, when the lifter is applied to the supporting device, it is beneficial to maintain stability during the use of the ultrasonic equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional structural diagram of the supporting device of an embodiment of the present application.

[0016] Figure 2 for Figure 1 A three-dimensional structural diagram of the middle lifting device when it is in the lifting state.

[0017] Figure 3 for Figure 1 Another three-dimensional structural diagram when the middle lifting device is in the lifting state.

[0018] Figure 4 for Figure 2 Cross-sectional structure diagram along line Ⅳ-Ⅳ.

[0019] Figure 5 for Figure 1 Schematic diagram of the forces acting on the middle lifter when it is in the lifted state.

[0020] Figure 6 for Figure 1 A three-dimensional structural diagram of the middle lift device when it is in a retracted state.

[0021] Figure 7 for Figure 1 Another three-dimensional structural diagram when the middle lift device is in the retracted state.

[0022] Figure 8 for Figure 6 Cross-sectional structure diagram along line Ⅷ-Ⅷ.

[0023] Main component symbols

[0024] Support device 100 Lifting assembly 20

[0025] Base plate 1 Pedal structure 21

[0026] First surface 101 First pedal 211

[0027] Second surface 102 First connection portion 212

[0028] Shell 2 Second connection portion 213

[0029] Installation space 201 First screw 22

[0030] Caster 3 Elastic structure 23

[0031] Lifting device 4 Adjustment rod 231

[0032] Support assembly 10 tension spring 232

[0033] Top plate 11 Switching assembly 30

[0034] First mounting surface 111 Second pedal 31

[0035] Second mounting surface 112 Card slot 311

[0036] First connecting ear 113 connecting plate 32

[0037] Second connecting ear 114 bottom 321

[0038] First support rod 12 First side portion 322

[0039] First guide groove 121 Second side portion 323

[0040] Second guide groove 122 Second screw rod 33

[0041] Opening 123 Third screw 34

[0042] Second support rod 13 First direction X

[0043] Foot cup 14 Second direction Y

[0044] Support surface 141

[0045] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0046] The present application provides a lifter and a support device including the lifter. The lifter can be switched between a lift state and a retracted state by conveniently stepping on a pedal, so that the support device including the lifter can also be switched between the two states to achieve height adjustment of an ultrasonic device placed on the support device.

[0047] See also Figure 1The supporting device 100 of the embodiment of the present application can be used to support an ultrasonic device (not shown). The supporting device 100 includes a base plate 1, a housing 2, a plurality of casters 3 and a plurality of lifters 4. In this embodiment, there are four casters 3 and four lifters 4, respectively.

[0048] The base plate 1 has a first surface 101 and a second surface 102 which are arranged opposite to each other and parallel to each other. The housing 2 is fixedly connected to the first surface 101. Each caster 3 and each lifter 4 are respectively connected to the second surface 102 at intervals. The housing 2 is formed with an installation space 201.

[0049] When the support device 100 is in use, the ultrasonic equipment can be partially rotated and installed in the installation space 201. When the support device 100 is placed on the ground, the casters 3 and the lifters 4 are in contact with the ground at different times. That is, the support device 100 has a first use state and a second use state. When the support device 100 is in the first use state, each lifter 4 is in a lift state, raising the height of the base plate 1, the shell 2 and the plurality of casters 3. At this time, each lifter 4 is placed on the ground and directly contacts the ground, and each caster 3 is suspended in the air and does not contact the ground. When the support device 100 is in the second use state, each lifter 4 is in a retracted state. At this time, multiple casters 3 are placed on the ground and directly contact the ground, while each lifter 4 is suspended in the air and does not contact the ground. The casters 3 roll on the ground to enable the support device 100 to drive the ultrasonic equipment to move.

[0050] Therefore, in this embodiment, the use state of the support device 100 can be switched by switching the states of the respective lifters 4. In this embodiment, the respective lifters 4 have substantially the same structure and function, and one of the lifters 4 is used as an example for explanation below.

[0051] Please also read Figure 2 and Figure 3 The jacking device 4 of this embodiment includes a support assembly 10, a jacking assembly 20 and a switching assembly 30. The support assembly 10 can be extended and retracted along a first direction X (i.e., a direction perpendicular to the ground) to change the overall height of the jacking device 4. The jacking assembly 20 and the switching assembly 30 are movably connected to the support assembly 10. The jacking assembly 20 is used to control the extension and retraction process of the support assembly 10, and the switching assembly 30 is used to switch the position state of the jacking assembly 20 to switch the overall state of the jacking device 4.

[0052] In this embodiment, the support assembly 10 includes a top plate 11, a first support rod 12, a second support rod 13 and a foot cup 14. The top plate 11 is a generally flat plate structure having a first mounting surface 111 and a second mounting surface 112. The first mounting surface 111 is fixedly connected to the second surface 102 of the bottom plate 1 (see FIG. Figure 1 ).

[0053] The first support rod 12 and the second support rod 13 are respectively hollow structures. The first support rod 12 and the second support rod 13 have overlapping axes, and the axes are perpendicular to the top plate 11. One end of the first support rod 12 is fixedly connected to the second mounting surface 112 of the top plate 11, and the other end is sleeved outside the second support rod 13. The first support rod 12 and the second support rod 13 can move relative to each other along the first direction X.

[0054] The first support rod 12 is also provided with a first guide groove 121 and a second guide groove 122 which are symmetrically arranged. The first guide groove 121 and the second guide groove 122 are of the same shape and size and are both long strips. The length extension direction of the first guide groove 121 and the second guide groove 122 is consistent with the first direction X. In this embodiment, the first guide groove 121 and the second guide groove 122 both have an opening 123 at one end close to the foot cup 14.

[0055] The end of the second support rod 13 that is not sleeved on the first support rod 12 is fixedly connected to the foot cup 14. The support surface 141 of the foot cup 14 away from the second support rod 13 is a circular plane. When the lifting device 4 is placed on the ground, the support surface 141 contacts the ground to make the supporting device 100 stable as a whole.

[0056] Please also read Figure 2-Figure 4 In this embodiment, the lifting assembly 20 includes a pedal structure 21, a first screw rod 22 and an elastic structure 23. The first screw rod 22 is used to flexibly connect the pedal structure 21 to the second support rod 13, so that the pedal structure 21 as a whole can rotate around the axial direction of the first screw rod 22. The elastic structure 23 is located in the first support rod 12 and connected to the first support rod 12 and the first screw rod 22.

[0057] In this embodiment, the pedal structure 21 includes a first pedal 211 and a first connecting portion 212 and a second connecting portion 213 extending from the first pedal 211. The first connecting portion 212 and the second connecting portion 213 are arranged side by side with an interval, and the first support rod 12 and the second support rod 13 are located between the first connecting portion 212 and the second connecting portion 213. The first screw rod 22 movably connects the second support rod 13, the first connecting portion 212 and the second connecting portion 213. That is, the first screw rod 22 passes through the first connecting portion 212, the second support rod 13 and the second connecting portion 213 in sequence. The position where the first screw rod 22 passes through the second support rod 13 allows the first screw rod 22 to be displaced along the first direction X in the first guide groove 121 and the second guide groove 122 during the extension and retraction of the support assembly 10.

[0058] The elastic structure 23 includes an adjusting rod 231 and a tension spring 232. The adjusting rod 231 penetrates and is fixedly connected to the first support rod 12. The adjusting rod 231 is located between the top plate 11 and the first screw rod 22. One end of the tension spring 232 is sleeved on the adjusting rod 231, and the other end is sleeved on the first screw rod 22. When the first screw rod 22 moves relative to the adjusting rod 231, the tension spring 232 is subjected to different tensions.

[0059] In this embodiment, the switching assembly 30 includes a second pedal 31, a connecting plate 32, a second screw rod 33 and a third screw rod 34. The connecting plate 32, the second screw rod 33 and the third screw rod 34 are used to jointly flexibly connect the second pedal 31 to the supporting assembly 10 and the lifting assembly 20.

[0060] The top plate 11 also has a first connecting ear 113 and a second connecting ear 114 extending toward one side of the first support rod 12 and parallel to each other. The connecting plate 32 includes a bottom 321 and a first side portion 322 and a second side portion 323 respectively connected to both ends of the bottom 321. The first side portion 322 and the second side portion 323 are parallel to each other and perpendicular to the bottom 321. The first side portion 322, the second side portion 323, the first connecting ear 113 and the second connecting ear 114 are parallel to each other.

[0061] The first side portion 322 is located between the second pedal 31 and the first connecting ear 113, and the second side portion 323 is located on the side of the second connecting ear 114 away from the first connecting ear 113. The second screw rod 33 sequentially penetrates and movably connects the second pedal 31, the first side portion 322, the first connecting ear 113, the second connecting ear 114 and the second side portion 323.

[0062] The second pedal 31 is rotatable around the axial direction of the second screw rod 33 .

[0063] The first connection portion 212 and the second connection portion 213 of the pedal structure 21 are located between the first side portion 322 and the second side portion 323 of the connecting plate 32. The first connection portion 212, the second connection portion 213, the first side portion 322 and the second side portion 323 are parallel to each other. The third screw rod 34 sequentially penetrates and movably connects the first side portion 322, the first connection portion 212, the second connection portion 213 and the second side portion 323. The pedal structure 21 can rotate around the axial direction of the third screw rod 34.

[0064] A slot 311 is further provided on one side of the second pedal 31 close to the second screw rod 33. The slot shape of the slot 311 is adapted to the side wall shape of the third screw rod 34, so that when the second pedal 31 rotates around the axial direction of the second screw rod 33 to squeeze the third screw rod 34, the third screw rod 34 can be partially embedded in the slot 311, so that the second pedal 31 can push the third screw rod 34.

[0065] In this embodiment, the axial directions of the first screw rod 22 , the second screw rod 33 and the third screw rod 34 are all consistent with the second direction Y, and the second direction Y is perpendicular to the first direction X.

[0066] As described above, the lifting device 4 of this embodiment can be switched between a lifting state and a retracted state. Figure 2-Figure 5 The figure shows the structure of the lifting device 4 in the lifting state. Figure 6-Figure 8The structure of the lifting device 4 in the retracted state is shown. The switching assembly 30 maintains the same position when the lifting device 4 is in the lifting state and the retracted state, while the lifting assembly 20 is in different position states when the lifting device 4 is in the lifting state and the retracted state. By stepping on the second pedal 31 in the switching assembly 30, the lifting assembly 20 can be switched between the first position state and the second position state, thereby switching the lifting device 4 between the lifting state and the retracted state.

[0067] See also Figure 2-Figure 4 When the first pedal 211 is stepped on downward, the pedal structure 21 rotates around the axial direction of the third screw rod 34, and the first connecting portion 212 and the second connecting portion 213 that are away from the first pedal 211 are lifted upward. At this time, the first screw rod 22 gradually moves away from the adjusting rod 231 along the first guide groove 121 and the second guide groove 122, and the distance between the first screw rod 22 and the adjusting rod 231 increases, so that the tension spring 232 is stretched and stores elastic potential energy. Since the first screw rod 22 is fixedly connected to the second support rod 13, when the first screw rod 22 moves away from the adjusting rod 231, the second support rod 13 also gradually moves out of the first support rod 12, so that the overall height of the support assembly 10 increases. The above process is the process of switching the lifting device 4 from the retracted state to the lifting state.

[0068] See also Figure 5 , the connecting plate 32 and the pedal structure 21 in the jack 4 are connecting rod structures, connected by the first screw 22, the second screw 33 and the third screw 34, the connecting plate 32 is the active part, and the pedal structure 21 is the driven part. When the connecting plate 32 and the pedal structure 21 are in a straight line, the movement direction V of the third screw 34 is perpendicular to the force direction F, and the effective rotation torque is zero at this time, and this position is the dead point position. At the dead point position, since the effective rotation torque is zero, the connecting plate 32 and the pedal structure 21 are in a dead position. In this state, the foot cup 14 extends to the ground with the second support rod 13, and each caster 3 leaves the ground. At this time, each jack 4 is maintained in the highest state and the height is consistent, and the support device 100 as a whole relies on the support surface 141 (a plane) of the foot cup 14 of each jack 44 to be stably placed on the ground, so that the support device 100 stably lifts and fixes the ultrasonic equipment.

[0069] Please refer to Figure 3 When the second pedal 31 is stepped on downward, the second pedal 31 presses the third screw 34 downward, the pedal structure 21 rotates around the axial direction of the third screw 34, and the first pedal 211 is lifted upward until it reaches Figure 6 Please also refer to Figure 6-Figure 8When the first pedal 211 is lifted upward, the tension spring 232 contracts to release elastic potential energy, driving the first screw rod 22 to gradually approach the adjustment rod 231 along the first guide groove 121 and the second guide groove 122. Since the first screw rod 22 is fixedly connected to the second support rod 13, when the first screw rod 22 approaches the adjustment rod 231, the second support rod 13 also gradually contracts into the first support rod 13, so that the overall height of the support assembly 10 is reduced. The above process is the process of switching the lifting device 4 from the lifting state to the retracted state.

[0070] The lifting device 4 of the present application includes a support assembly 10, a lifting assembly 20 and a switching assembly 30. The position state of the lifting assembly 20 can be switched by stepping on the switching assembly 30, thereby controlling the extension and retraction of the support assembly 10, changing the height of the support assembly 10, and switching the lifting device 4 between the lifting state and the retracted state. The stepping action does not require the user to extend both hands into a lower position for operation, which simplifies the operation process and can effectively avoid the risk of hand pinching.

[0071] When the lifter 4 is applied to the support device 100, the lifter 4 is controlled to be in a retracted state during the process of moving the ultrasonic device, so that the lifter 4 and the caster 3 roll on the ground; during the operation of the ultrasonic device, the lifter 4 can be controlled to be in a raised state, the caster 3 is suspended in the air, and the surface of the foot cup 14 contacts the ground. Since the support surface 141 of the foot cup 14 is a plane, the support device 100 will not move at this time. Therefore, when the lifter 4 is applied to the support device 100, it is beneficial to maintain stability during the use of the ultrasonic device.

[0072] Those skilled in the art should recognize that the above implementation modes are only used to illustrate the present application, and are not used as limitations on the present application. As long as they are within the essential spirit of the present application, appropriate changes and modifications made to the above embodiments are within the scope of protection claimed in the present application.

Claims

1. A lifting device, characterized in that: include: A support assembly, which can be extended and retracted along a first direction; A lifting component is movably connected to the supporting component and can be switched between a first position state and a second position state. When the lifting component is in the first position state, the supporting component is kept extended so that the lifting device is in a lifting state; as well as A switching component is movably connected to the supporting component and the lifting component, and is used to switch the lifting component from the first position state to the second position state. When the lifting component is in the second position state, the supporting component remains contracted so that the lifting device is in a retracted state.

2. The lifting device according to claim 1, characterized in that: The support assembly includes a top plate, a first support rod, a second support rod and a foot cup; The first support rod is fixedly connected to the top plate, the first support rod is partially sleeved outside the second support rod, and the foot cup is fixedly connected to an end of the second support rod away from the top plate; During the extension and retraction process of the support assembly, the first support rod and the second support rod generate relative displacement along the first direction.

3. The lifting device according to claim 2, characterized in that: The lifting assembly comprises: Pedal structure; a first screw rod, movably connecting the pedal structure and the second support rod; and An elastic structure, located inside the first support rod, connecting the first support rod and the first screw rod; When the lifting component is in the first position state, the elastic structure stores elastic potential energy. When the elastic structure releases the elastic potential energy, the switching component can switch the lifting component from the first position state to the second position state.

4. The lifting device according to claim 3, characterized in that: The elastic structure comprises an adjusting rod and a tension spring, wherein the adjusting rod is fixedly connected to the first support rod, one end of the tension spring is sleeved on the adjusting rod, and the other end is sleeved on the first screw rod; and / or The first support rod is provided with a first guide groove and a second guide groove in a strip shape, and the length extension direction of the first guide groove and the second guide groove is consistent with the first direction.

5. The lifting device according to claim 3, characterized in that: The pedal structure includes a first pedal and a first connecting portion and a second connecting portion extending from the first pedal, the first support rod and the second support rod are located between the first connecting portion and the second connecting portion, and the first screw rod movably connects the second support rod, the first connecting portion and the second connecting portion.

6. The lifting device according to claim 5, characterized in that: The switching component comprises: a second pedal; and A connecting plate, one end of which is connected to the second connecting portion, and the other end of which is connected to the second pedal and the first connecting portion.

7. The lifting device according to claim 6, characterized in that: The switching assembly further includes a second screw rod, and the second screw rod passes through the first connecting portion, the second connecting portion and both ends of the connecting plate.

8. The lifting device according to claim 7, characterized in that: The top plate extends toward one side of the first support rod to form a first connecting ear and a second connecting ear, and the switching assembly further includes a third screw rod; The third screw rod passes through the second pedal, the connecting plate, the first connecting ear and the second connecting ear respectively; One end of the connecting plate is located between the second pedal and the first connecting ear.

9. The lifting device according to claim 8, characterized in that: The connecting plate and the pedal structure are a connecting rod structure, connected by the first screw rod, the second screw rod and the third screw rod; When the lifting device is in the lifting state, the connecting plate and the pedal structure are in a straight line, the movement direction of the third screw rod is perpendicular to the force direction, and the effective rotation torque is zero.

10. A supporting device, characterized in that: include: A bottom plate having a first surface and a second surface arranged opposite to each other; A housing connected to the first surface and forming an installation space; A plurality of casters connected to the second surface at intervals; as well as A plurality of lifters, each of the lifters is as described in any one of claims 1-9, and the support assembly of each of the lifters is connected to the second surface.

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