Switching device and movable base

Abstract

The utility model provides a switching device and a movable base. The switching device comprises a mounting seat used for mounting a roller, and the roller protrudes out of the bottom surface of the mounting seat; and the moving seat is constructed to be capable of moving in the vertical direction relative to the mounting seat, the moving seat is provided with a first position and a second position in the vertical direction, when the moving seat is located at the first position, the rolling wheels protrude out of the bottom face of the moving seat, and when the moving seat is located at the second position, the bottom face of the moving seat protrudes out of the bottom faces of the rolling wheels. According to the technical scheme, the switching device can solve the problem that due to the fact that an existing trundle locking structure is complex in mechanical structure, maintenance difficulty is high.

Description

Technical Field

[0001] The utility model relates to the technical field of bracket bases, and in particular to a switching device and a movable base. Background Art

[0002] In modern industrial production and daily life, stands and carts are common handling tools, and they are widely used in warehouses, supermarkets, hospitals, schools and other places. In order to improve the portability of these equipment, casters are usually installed at the bottom of them so that users can move them easily. However, in order to ensure the stability and safety of stands and carts during use, the casters need to be locked when necessary to prevent them from moving or sliding inappropriately.

[0003] Currently, the caster locking methods available on the market include setting a brake mechanism, a stop flange, and bias locking, etc. Although these methods can achieve the locking function of the caster to a certain extent, these mechanisms often contain multiple parts and complex mechanical structures, which not only increases the manufacturing cost, but also increases the difficulty of maintenance. Utility Model Content

[0004] The main purpose of the utility model is to provide a switching device and a movable base, which can solve the problem that the mechanical structure of the existing caster locking structure is complex and leads to high maintenance difficulty.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a switching device is provided, including: a mounting seat for mounting a roller, the roller protruding from the bottom surface of the mounting seat; a moving seat, which is constructed to be able to move in a vertical direction relative to the mounting seat, and along the vertical direction, the moving seat has a first position and a second position, when the moving seat is in the first position, the roller protrudes from the bottom surface of the moving seat, and when the moving seat is in the second position, the bottom surface of the moving seat protrudes from the bottom surface of the roller.

[0006] Further, the movable seat is constructed to be able to rotate relative to the mounting seat. When the movable seat is rotated to a first rotation position relative to the mounting seat, the movable seat can move to a first position in a vertical direction relative to the mounting seat. When the movable seat is rotated to a second rotation position relative to the mounting seat, the movable seat can move to a second position in a vertical direction relative to the mounting seat.

[0007] Furthermore, the mounting seat is threadably matched with the movable seat.

[0008] Furthermore, a first protrusion is provided on the side wall of one of the mounting seat and the movable seat, and a first groove and a second groove are provided on the side wall of the other of the mounting seat and the movable seat. The first groove and the second groove are arranged at intervals along the circumference of the mounting seat or the movable seat, and the first groove and the second groove have a height difference in the vertical direction of the mounting seat or the movable seat. The first protrusion is constructed to be able to engage with the first groove or the second groove. When the first protrusion is engaged with the first groove, the movable seat is in the first position, and when the first protrusion is engaged with the second groove, the movable seat is in the second position.

[0009] Further, when the side wall of the mounting seat is provided with a first groove and a second groove, the side wall of the mounting seat is also provided with a third protrusion, the second groove is provided corresponding to the third protrusion and is located at the lower side of the third protrusion, the movable seat includes a support groove and an avoidance gap, when the movable seat is in the first position, the third protrusion is constructed to be able to be clamped in the avoidance gap, when the movable seat is in the second position, the third protrusion is constructed to be able to be clamped in the support groove, and the support groove can support the third protrusion.

[0010] Furthermore, there are multiple third protrusions, support grooves and avoidance gaps, and the movable seat also includes multiple first mounting parts. The multiple first mounting parts and the multiple avoidance gaps are alternately arranged along the circumference of the movable seat, and each first mounting part is provided with at least one support groove. The side wall of at least one first mounting part is provided with a first protrusion. When the movable seat is in the first position, the multiple third protrusions are arranged in one-to-one correspondence with the multiple avoidance gaps, and the third protrusions are clamped in the avoidance gaps corresponding thereto. When the movable seat is in the second position, the multiple support grooves are arranged in one-to-one correspondence with the multiple third protrusions, and the third protrusions are clamped in the support grooves corresponding thereto.

[0011] Furthermore, a second protrusion is provided on the side wall of one of the mounting seat and the movable seat, and a third groove and a fourth groove are provided on the side wall of the other of the mounting seat and the movable seat. The third groove and the fourth groove are arranged at intervals along the circumference of the mounting seat or the movable seat, and the third groove and the fourth groove have a height difference in the vertical direction of the mounting seat or the movable seat. The second protrusion is constructed to be able to engage with the third groove or the fourth groove. When the second protrusion is engaged with the third groove, the movable seat is in the first position, and when the second protrusion is engaged with the fourth groove, the movable seat is in the second position.

[0012] Further, when the side wall of the mounting seat is provided with a third groove and a fourth groove, the side wall of the mounting seat is also provided with a first overlapping portion and a second overlapping portion, the third groove is provided corresponding to the first overlapping portion, the fourth groove is provided corresponding to the second overlapping portion, the first overlapping portion and the second overlapping portion are arranged at intervals along the circumference of the mounting seat, and the first overlapping portion and the second overlapping portion have a height difference in the vertical direction of the mounting seat, the movable seat includes a second mounting portion, when the movable seat is in the first position, the first overlapping portion overlaps the second mounting portion, and when the movable seat is in the second position, the second overlapping portion overlaps the second mounting portion.

[0013] Furthermore, there are at least two first overlapping portions, second overlapping portions and second mounting portions, and at least two second mounting portions are arranged at intervals along the circumference of the movable seat. A second protrusion is provided on the side wall of at least one second mounting portion. When the movable seat is in the first position, at least two first overlapping portions are arranged in a one-to-one correspondence with at least two second mounting portions, and the first overlapping portions overlap the second mounting portions corresponding thereto. When the movable seat is in the second position, at least two second overlapping portions are arranged in a one-to-one correspondence with at least two second mounting portions, and the second overlapping portions overlap the second mounting portions corresponding thereto.

[0014] According to another aspect of the utility model, a movable base is provided, comprising: a base body; the above-mentioned switching device; a mounting seat fixedly connected to the base body; and a roller, which is mounted on the mounting seat.

[0015] The technical solution of the utility model is applied, and a mounting seat and a moving seat are provided. When the moving seat is in the first position, the roller protrudes from the bottom surface of the moving seat, and the roller rolls and can drive the mounting seat to move on the contact surface. When the moving seat is in the second position, the bottom surface of the moving seat protrudes from the bottom surface of the roller. At this time, the roller does not contact the contact surface and cannot drive the mounting seat to move on the contact surface. Through the cooperation of the mounting seat and the moving seat, the roller can be switched between the moving state and the stopped state. The switching device of the present application is mainly composed of the mounting seat and the moving seat, and the structure is relatively simple, which can reduce the difficulty of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 A cross-sectional view showing a moving seat of a switching device according to an embodiment of the utility model when the moving seat is in a first position;

[0018] Figure 2 A cross-sectional view showing a switching device according to an embodiment of the utility model when the moving seat is in the second position;

[0019] Figure 3 A cross-sectional view of a switching device according to an embodiment of the present utility model is shown;

[0020] Figure 4 An exploded view of a switching device according to an embodiment of the present utility model is shown;

[0021] Figure 5 A schematic diagram showing the structure of a mounting base according to an embodiment of the utility model is shown;

[0022] Figure 6 A schematic diagram showing the structure of a mobile base according to an embodiment of the utility model is shown;

[0023] Figure 7 A cross-sectional view showing a moving seat of a switching device according to an embodiment of the utility model when the moving seat is in a first position;

[0024] Figure 8 A cross-sectional view showing a switching device according to an embodiment of the utility model when the moving seat is in the second position;

[0025] Fig. 9 A cross-sectional view showing a moving seat of a switching device according to an embodiment of the utility model when the moving seat is in a first position;

[0026] Fig.10 A cross-sectional view showing a switching device according to an embodiment of the utility model when the moving seat is in the second position;

[0027] Fig.11 A schematic diagram showing the structure of a switching device according to an embodiment of the utility model when the moving seat is in the first position;

[0028] Fig.12 A schematic structural diagram showing a switching device according to an embodiment of the utility model when the moving seat is in the second position;

[0029] Fig.13 A schematic diagram showing the structure of a mounting base according to an embodiment of the utility model is shown;

[0030] Fig.14 A schematic diagram showing the structure of a mobile base according to an embodiment of the utility model is shown;

[0031] Fig.15 A cross-sectional view showing a moving seat of a switching device according to an embodiment of the utility model when the moving seat is in a first position;

[0032] Fig.16 A cross-sectional view showing a switching device according to an embodiment of the utility model when the moving seat is in the second position;

[0033] Fig.17 A structural schematic diagram of a movable base in an embodiment of the utility model is shown.

[0034] The above drawings include the following reference numerals:

[0035] 10. Mounting seat; 11. Third protrusion; 12. First overlapping portion; 13. Second overlapping portion; 14. Mounting frame; 15. Clamping structure; 16. Rolling element; 17. Rotating shaft; 18. Bolt; 20. Roller; 30. Moving seat; 31. First mounting portion; 32. Avoidance notch; 33. Support groove; 34. Second mounting portion; 40. First protrusion; 50. First groove; 60. Second groove; 70. Second protrusion; 80. Third groove; 90. Fourth groove; 100. Base body; 200. Mounting panel. DETAILED DESCRIPTION

[0036] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0037] See also Figures 1 to 16 As shown, the utility model provides a switching device, which includes: a mounting seat 10, used to mount a roller 20, the roller 20 protruding from the bottom surface of the mounting seat 10; a moving seat 30, which is constructed to be able to move in a vertical direction relative to the mounting seat 10, and along the vertical direction, the moving seat 30 has a first position and a second position, when the moving seat 30 is in the first position, the roller 20 protrudes from the bottom surface of the moving seat 30, and when the moving seat 30 is in the second position, the bottom surface of the moving seat 30 protrudes from the bottom surface of the roller 20.

[0038] In this embodiment, the roller 20 is mounted on the mounting seat 10 and protrudes from the bottom surface of the mounting seat 10, and the roller 20 rolls to drive the mounting seat 10 to move. The moving seat 30 moves in the vertical direction relative to the mounting seat 10 to switch between the first position and the second position. When the moving seat 30 is in the first position, the roller 20 protrudes from the bottom surface of the moving seat 30, and the roller 20 rolls and can drive the mounting seat 10 to move on the contact surface (such as the ground, track, conveyor belt, etc.). When the moving seat 30 is in the second position, the bottom surface of the moving seat 30 protrudes from the bottom surface of the roller 20. At this time, the roller 20 does not contact the contact surface and cannot drive the mounting seat 10 to move on the contact surface. As can be seen from the above, the switching device of the present application can realize the switching of the roller 20 in the moving state and the stop state through the cooperation of the mounting seat 10 and the moving seat 30, and the switching device of the present application is mainly composed of the mounting seat 10 and the moving seat 30, and the structure is relatively simple, which can reduce the difficulty of maintenance.

[0039] It should be noted that the moving state of the roller 20 refers to the state in which the roller 20 can drive the mounting seat 10 to move on the contact surface, and the stopped state refers to the state in which the roller 20 cannot drive the mounting seat 10 to move on the contact surface.

[0040] In one embodiment of the utility model, the movable seat 30 is constructed to be able to rotate relative to the mounting seat 10. When the movable seat 30 rotates to a first rotation position relative to the mounting seat 10, the movable seat 30 can move to a first position in a vertical direction relative to the mounting seat 10. When the movable seat 30 rotates to a second rotation position relative to the mounting seat 10, the movable seat 30 can move to a second position in a vertical direction relative to the mounting seat 10.

[0041] In this embodiment, the movable seat 30 switches between the first position and the second position by rotating, thereby enabling the roller 20 to switch between the moving state and the stopped state.

[0042] See also Figure 7 , Figure 8 , Fig.15 , Fig.16 As shown, in one embodiment of the present invention, the mounting seat 10 and the moving seat 30 are threadedly matched.

[0043] In this embodiment, if Figure 7 and Figure 8 As shown, the inner wall surface of the mounting seat 10 is threadedly matched with the outer wall surface of the movable seat 30, as shown in FIG. Fig.15 and Fig.16 As shown, the outer wall surface of the mounting seat 10 is threadedly matched with the inner wall surface of the movable seat 30. The threaded match between the mounting seat 10 and the movable seat 30 can realize the switching of the movable seat 30 between the first position and the second position, thereby enabling the roller 20 to switch between the moving state and the stopped state.

[0044] In one embodiment of the utility model, the side wall of one of the mounting seat 10 and the movable seat 30 is provided with a first protrusion 40, and the side wall of the other of the mounting seat 10 and the movable seat 30 is provided with a first groove 50 and a second groove 60. The first groove 50 and the second groove 60 are arranged at intervals along the circumference of the mounting seat 10 or the movable seat 30. The first groove 50 and the second groove 60 have a height difference in the vertical direction of the mounting seat 10 or the movable seat 30. The first protrusion 40 is constructed to be able to be snap-fitted with the first groove 50 or the second groove 60. When the first protrusion 40 is snap-fitted with the first groove 50, the movable seat 30 is in the first position, and when the first protrusion 40 is snap-fitted with the second groove 60, the movable seat 30 is in the second position.

[0045] In this embodiment, the vertical direction of the mounting seat 10 refers to the height direction of the mounting seat 10, and the vertical direction of the moving seat 30 refers to the height direction of the moving seat 30. When the side wall of the mounting seat 10 is provided with the first protrusion 40, and the side wall of the moving seat 30 is provided with the first groove 50 and the second groove 60, the first groove 50 and the second groove 60 are arranged at intervals along the circumference of the moving seat 30, and have a height difference in the vertical direction of the moving seat 30; when the side wall of the moving seat 30 is provided with the first protrusion 40, and the side wall of the mounting seat 10 is provided with the first groove 50 and the second groove 60, the first groove 50 and the second groove 60 are arranged at intervals along the circumference of the mounting seat 10, and have a height difference in the vertical direction of the mounting seat 10. The first groove 50 is located on the side of the second groove 60 away from the contact surface. By snapping together the first protrusion 40 and the first groove 50, the movable seat 30 can be in the first position, thereby putting the roller 20 in a moving state; by snapping together the first protrusion 40 and the second groove 60, the movable seat 30 can be in the second position, thereby putting the roller 20 in a stopped state.

[0046] It should be noted that the mounting seat 10 and the movable seat 30 are separately provided, and the mounting seat 10 is sleeved on the outer periphery of the movable seat 30 or the movable seat 30 is sleeved on the outer periphery of the mounting seat 10. Assuming that the first protrusion 40 is engaged with the first groove 50, when it is necessary to engage the first protrusion 40 with the second groove 60, the movable seat 30 is manually disengaged from the mounting seat 10, and then the movable seat 30 or the mounting seat 10 is rotated at a certain angle so that the first protrusion 40 corresponds to the second groove 60, and then the mounting seat 10 and the movable seat 30 are sleeved together. At this time, the first protrusion 40 can engage with the second groove 60, thereby realizing the switching of the movable seat 30 from the first position to the second position. Similarly, the process of switching the movable seat 30 from the second position to the first position is the same as above, and will not be repeated here.

[0047] See also Figures 1 to 6 As shown, in one embodiment of the utility model, when the side wall of the mounting seat 10 is provided with a first groove 50 and a second groove 60, the side wall of the mounting seat 10 is also provided with a third protrusion 11, the second groove 60 is provided corresponding to the third protrusion 11, and is located at the lower side of the third protrusion 11, the movable seat 30 includes a support groove 33 and an avoidance gap 32, when the movable seat 30 is in the first position, the third protrusion 11 is constructed to be able to be clamped in the avoidance gap 32, and when the movable seat 30 is in the second position, the third protrusion 11 is constructed to be able to be clamped in the support groove 33, and the support groove 33 can support the third protrusion 11.

[0048] In this embodiment, the setting of the avoidance notch 32 enables the movable seat 30 to move in the direction away from the contact surface along the vertical direction, so that the first protrusion 40 can be engaged with the first groove 50, so that the movable seat 30 can be in the first position, and then the roller 20 is in a moving state. When the movable seat 30 is in the second position, the third protrusion 11 is engaged in the support groove 33. At this time, the support groove 33 can support the third protrusion 11, so that the movable seat 30 supports the mounting seat 10. At this time, the movable seat 30 lifts the mounting seat 10 away from the contact surface, so that the mounting seat 10 and the roller 20 are not in contact with the contact surface, so that the roller 20 is in a stopped state.

[0049] See also Figures 1 to 6 As shown, there are multiple third protrusions 11, support grooves 33 and avoidance gaps 32, and the movable seat 30 also includes multiple first mounting portions 31. The multiple first mounting portions 31 and the multiple avoidance gaps 32 are alternately arranged along the circumference of the movable seat 30, and each first mounting portion 31 is provided with at least one support groove 33. The side wall of at least one first mounting portion 31 is provided with a first protrusion 40. When the movable seat 30 is in the first position, the multiple third protrusions 11 are arranged in a one-to-one correspondence with the multiple avoidance gaps 32, and the third protrusions 11 are clamped in the corresponding avoidance gaps 32. When the movable seat 30 is in the second position, the multiple support grooves 33 are arranged in a one-to-one correspondence with the multiple third protrusions 11, and the third protrusions 11 are clamped in the corresponding support grooves 33.

[0050] Through the above arrangement, when the movable base 30 is in the second position, the supporting stability of the movable base 30 on the mounting base 10 can be improved.

[0051] See also Figures 9 to 14 As shown, in one embodiment of the utility model, the side wall of one of the mounting seat 10 and the movable seat 30 is provided with a second protrusion 70, and the side wall of the other of the mounting seat 10 and the movable seat 30 is provided with a third groove 80 and a fourth groove 90, the third groove 80 and the fourth groove 90 are arranged at intervals along the circumference of the mounting seat 10 or the movable seat 30, the third groove 80 and the fourth groove 90 have a height difference in the vertical direction of the mounting seat 10 or the movable seat 30, the second protrusion 70 is constructed to be able to be engaged with the third groove 80 or the fourth groove 90, when the second protrusion 70 is engaged with the third groove 80, the movable seat 30 is in the first position, and when the second protrusion 70 is engaged with the fourth groove 90, the movable seat 30 is in the second position.

[0052] In this embodiment, when the side wall of the mounting seat 10 is provided with the second protrusion 70, and the side wall of the moving seat 30 is provided with the third groove 80 and the fourth groove 90, the third groove 80 and the fourth groove 90 are arranged at intervals along the circumference of the moving seat 30, and have a height difference in the vertical direction of the moving seat 30. When the side wall of the moving seat 30 is provided with the second protrusion 70, and the side wall of the mounting seat 10 is provided with the third groove 80 and the fourth groove 90, the third groove 80 and the fourth groove 90 are arranged at intervals along the circumference of the mounting seat 10, and have a height difference in the vertical direction of the mounting seat 10. The third groove 80 is located on the side of the fourth groove 90 away from the contact surface. Through the snap-fitting of the second protrusion 70 and the third groove 80, the moving seat 30 can be in the first position, thereby making the roller 20 in the moving state, and through the snap-fitting of the second protrusion 70 and the fourth groove 90, the moving seat 30 can be in the second position, thereby making the roller 20 in the stopped state.

[0053] It should be noted that the mounting seat 10 and the movable seat 30 are separately provided, and the mounting seat 10 is sleeved on the outer periphery of the movable seat 30 or the movable seat 30 is sleeved on the outer periphery of the mounting seat 10. Assuming that the second protrusion 70 is engaged with the third groove 80, when it is necessary to engage the second protrusion 70 with the fourth groove 90, the movable seat 30 is manually disengaged from the mounting seat 10, and then the movable seat 30 or the mounting seat 10 is rotated at a certain angle so that the second protrusion 70 corresponds to the fourth groove 90, and then the mounting seat 10 and the movable seat 30 are sleeved together. At this time, the second protrusion 70 can engage with the fourth groove 90, thereby realizing the switching of the movable seat 30 from the first position to the second position. Similarly, the process of switching the movable seat 30 from the second position to the first position is the same as above, which will not be repeated here.

[0054] See also Figures 9 to 14 As shown, in one embodiment of the utility model, when the side wall of the mounting seat 10 is provided with a third groove 80 and a fourth groove 90, the side wall of the mounting seat 10 is also provided with a first overlapping portion 12 and a second overlapping portion 13, the third groove 80 is arranged corresponding to the first overlapping portion 12, the fourth groove 90 is arranged corresponding to the second overlapping portion 13, the first overlapping portion 12 and the second overlapping portion 13 are arranged at intervals along the circumference of the mounting seat 10, and the first overlapping portion 12 and the second overlapping portion 13 have a height difference in the vertical direction of the mounting seat 10, the movable seat 30 includes a second mounting portion 34, when the movable seat 30 is in the first position, the first overlapping portion 12 is overlapped on the second mounting portion 34, and when the movable seat 30 is in the second position, the second overlapping portion 13 is overlapped on the second mounting portion 34.

[0055] In this embodiment, when the movable seat 30 is in the first position, the first overlap portion 12 overlaps the second mounting portion 34. The first overlap portion 12 can limit the movable seat 30 in the height direction of the mounting seat 10, preventing the movable seat 30 from moving in the height direction relative to the mounting seat 10. When the movable seat 30 is in the second position, the second overlap portion 13 overlaps the second mounting portion 34. At this time, the second mounting portion 34 can support the second overlap portion 13, that is, the movable seat 30 can support the mounting seat 10, and the mounting seat 10 is separated from the contact surface, so that the mounting seat 10 and the roller 20 are not in contact with the contact surface, and the roller 20 is in a stopped state.

[0056] See also Figures 9 to 14 As shown, in one embodiment of the utility model, there are at least two first overlapping portions 12, second overlapping portions 13 and second mounting portions 34, at least two second mounting portions 34 are arranged at intervals along the circumference of the movable seat 30, and a second protrusion 70 is provided on the side wall of at least one second mounting portion 34. When the movable seat 30 is in the first position, at least two first overlapping portions 12 are arranged in a one-to-one correspondence with at least two second mounting portions 34, and the first overlapping portions 12 are overlapped on the second mounting portions 34 corresponding thereto. When the movable seat 30 is in the second position, at least two second overlapping portions 13 are arranged in a one-to-one correspondence with at least two second mounting portions 34, and the second overlapping portions 13 are overlapped on the second mounting portions 34 corresponding thereto.

[0057] In this embodiment, there are at least two first overlapping portions 12, the number of the second mounting portions 34 and the first overlapping portions 12 is the same, and at least two first overlapping portions 12 are arranged at intervals along the circumference of the mounting seat 10, so that when the movable seat 30 is in the first position, the first overlapping portion 12 overlaps the second mounting portion 34 corresponding thereto, and at this time, it is possible to achieve a limit on the movable seat 30 in the height direction of the mounting seat 10 at different positions, and the limit effect is better. There are at least two second overlapping portions 13, the number of the second mounting portions 34 and the second overlapping portions 13 is the same, and at least two second overlapping portions 13 are arranged at intervals along the circumference of the mounting seat 10, so that when the movable seat 30 is in the second position, the second overlapping portion 13 overlaps the second mounting portion 34 corresponding thereto, and the support stability of the movable seat 30 on the mounting seat 10 can be further improved.

[0058] See also Figures 1 to 17 As shown, according to another aspect of the present invention, a movable base is provided, including: a base body 100; the above-mentioned switching device; a mounting seat 10 fixedly connected to the base body 100; and a roller 20, which is mounted on the mounting seat 10.

[0059] In this embodiment, the switching device of the movable base has all the technical solutions and all the technical effects of the above-mentioned switching device, which will not be repeated here.

[0060] like Fig.17 As shown, in one embodiment of the present invention, a mounting panel 200 is provided on the base body 100 , and the mounting panel 200 can be used to install a television, a monitor, and the like.

[0061] See also Figures 1 to 8 As shown, in one embodiment of the utility model, the movable base also includes a mounting frame 14, a clamping structure 15 is provided on the mounting seat 10, the mounting frame 14 is clamped with the clamping structure 15, and the mounting frame 14 can rotate relative to the mounting seat 10, a rotating shaft 17 is provided on the mounting frame 14, a roller 20 is sleeved on the rotating shaft 17, and the roller 20 can rotate relative to the rotating shaft 17 around the central axis of the rotating shaft 17, and a rolling member 16 is provided between the mounting frame 14 and the side wall of the mounting seat 10 provided with the clamping structure 15, and the setting of the rolling member 16 makes the mounting frame 14 rotate more smoothly relative to the mounting seat 10.

[0062] In one embodiment, the rolling element 16 is a ball.

[0063] See also Figures 9 to 16 As shown, in one embodiment of the present invention, the drum is connected to the mounting base 10 via bolts 18 .

[0064] From the above description, it can be seen that the above-mentioned embodiment of the utility model achieves the following technical effects: a mounting seat and a moving seat are provided, when the moving seat is in the first position, the roller protrudes from the bottom surface of the moving seat, the roller rolls and can drive the mounting seat to move on the contact surface, when the moving seat is in the second position, the bottom surface of the moving seat protrudes from the bottom surface of the roller, at this time, the roller does not contact the contact surface and cannot drive the mounting seat to move on the contact surface. Through the cooperation of the mounting seat and the moving seat, the roller can be switched between the moving state and the stopped state, and the switching device of the present application is mainly composed of the mounting seat and the moving seat, the structure is relatively simple, and the maintenance difficulty can be reduced.

[0065] Obviously, the embodiments described above are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0066] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0067] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A switching device, characterized in that: include: A mounting seat (10) for mounting a roller (20), wherein the roller (20) protrudes from the bottom surface of the mounting seat (10); The movable seat (30) is configured to be movable in a vertical direction relative to the mounting seat (10); along the vertical direction, the movable seat (30) has a first position and a second position; when the movable seat (30) is in the first position, the roller (20) protrudes from the bottom surface of the movable seat (30); when the movable seat (30) is in the second position, the bottom surface of the movable seat (30) protrudes from the bottom surface of the roller (20).

2. The switching device according to claim 1, characterized in that: The movable seat (30) is configured to be rotatable relative to the mounting seat (10); when the movable seat (30) is rotated to a first rotation position relative to the mounting seat (10), the movable seat (30) is able to move relative to the mounting seat (10) along the vertical direction to the first position; when the movable seat (30) is rotated to a second rotation position relative to the mounting seat (10), the movable seat (30) is able to move relative to the mounting seat (10) along the vertical direction to the second position.

3. The switching device according to claim 2, characterized in that: The mounting seat (10) is threadably matched with the movable seat (30).

4. The switching device according to claim 1, characterized in that: A first protrusion (40) is provided on a side wall of one of the mounting seat (10) and the movable seat (30), and a first groove (50) and a second groove (60) are provided on a side wall of the other of the mounting seat (10) and the movable seat (30). The first groove (50) and the second groove (60) are arranged at intervals along the circumference of the mounting seat (10) or the movable seat (30). The first groove (50) and the second groove (60) have a height difference in the vertical direction of the mounting seat (10) or the movable seat (30). The first protrusion (40) is configured to be able to engage with the first groove (50) or the second groove (60). When the first protrusion (40) is engaged with the first groove (50), the movable seat (30) is in the first position, and when the first protrusion (40) is engaged with the second groove (60), the movable seat (30) is in the second position.

5. The switching device according to claim 4, characterized in that: When the side wall of the mounting seat (10) is provided with the first groove (50) and the second groove (60), the side wall of the mounting seat (10) is also provided with a third protrusion (11), the second groove (60) is arranged corresponding to the third protrusion (11), and is located at the lower side of the third protrusion (11), the movable seat (30) comprises a supporting groove (33) and an avoidance notch (32), when the movable seat (30) is in the first position, the third protrusion (11) is constructed to be able to be clamped in the avoidance notch (32), when the movable seat (30) is in the second position, the third protrusion (11) is constructed to be able to be clamped in the supporting groove (33), and the supporting groove (33) can support the third protrusion (11).

6. The switching device according to claim 5, characterized in that: The third protrusion (11), the supporting groove (33) and the avoiding notch (32) are all multiple, and the movable seat (30) further comprises a plurality of first mounting parts (31), the plurality of first mounting parts (31) and the plurality of avoiding notches (32) are alternately arranged along the circumference of the movable seat (30), each of the first mounting parts (31) is provided with at least one supporting groove (33), and the side wall of at least one first mounting part (31) is provided with the first protrusion (40); when the movable seat (30) is in the first position, the plurality of third protrusions (11) are arranged in one-to-one correspondence with the plurality of avoiding notches (32), and the third protrusions (11) are clamped in the avoiding notches (32) corresponding thereto; when the movable seat (30) is in the second position, the plurality of supporting grooves (33) are arranged in one-to-one correspondence with the plurality of third protrusions (11), and the third protrusions (11) are clamped in the corresponding supporting grooves (33).

7. The switching device according to claim 1, characterized in that: A second protrusion (70) is provided on the side wall of one of the mounting seat (10) and the movable seat (30), and a third groove (80) and a fourth groove (90) are provided on the side wall of the other of the mounting seat (10) and the movable seat (30). The third groove (80) and the fourth groove (90) are arranged at intervals along the circumference of the mounting seat (10) or the movable seat (30), and the third groove (80) and the fourth groove (90) have a height difference in the vertical direction of the mounting seat (10) or the movable seat (30). The second protrusion (70) is constructed to be able to engage with the third groove (80) or the fourth groove (90). When the second protrusion (70) is engaged with the third groove (80), the movable seat (30) is in the first position, and when the second protrusion (70) is engaged with the fourth groove (90), the movable seat (30) is in the second position.

8. The switching device according to claim 7, characterized in that: When the side wall of the mounting seat (10) is provided with the third groove (80) and the fourth groove (90), the side wall of the mounting seat (10) is also provided with a first overlapping portion (12) and a second overlapping portion (13); the third groove (80) is arranged corresponding to the first overlapping portion (12); the fourth groove (90) is arranged corresponding to the second overlapping portion (13); the first overlapping portion (12) and the second overlapping portion (13) are arranged at intervals along the circumference of the mounting seat (10); and the first overlapping portion (12) and the second overlapping portion (13) have a height difference in the vertical direction of the mounting seat (10); the movable seat (30) includes a second mounting portion (34); when the movable seat (30) is in the first position, the first overlapping portion (12) overlaps the second mounting portion (34); when the movable seat (30) is in the second position, the second overlapping portion (13) overlaps the second mounting portion (34).

9. The switching device according to claim 8, characterized in that: There are at least two of the first overlapping portions (12), the second overlapping portions (13) and the second mounting portions (34), and at least two of the second mounting portions (34) are arranged at intervals along the circumference of the movable seat (30). The side wall of at least one of the second mounting portions (34) is provided with a second protrusion (70). When the movable seat (30) is in the first position, at least two of the first overlapping portions (12) are arranged in a one-to-one correspondence with at least two of the second mounting portions (34), and the first overlapping portions (12) overlap the second mounting portions (34) corresponding thereto. When the movable seat (30) is in the second position, at least two of the second overlapping portions (13) are arranged in a one-to-one correspondence with at least two of the second mounting portions (34), and the second overlapping portions (13) overlap the second mounting portions (34) corresponding thereto.

10. A movable base, characterized in that: include: Base body (100); The switching device according to any one of claims 1 to 9; The mounting seat (10) is fixedly connected to the base body (100); and the roller (20) is mounted on the mounting seat (10).

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