Lifting column driven by synchronous belt

Abstract

The utility model discloses a lifting column driven by a synchronous belt, and belongs to the field of lifting equipment. The lifting column comprises a first section pipe, a second section pipe, a third section pipe, a synchronous wheel, a synchronous belt and a push rod motor, the second section pipe is sleeved with the first section pipe, the third section pipe is sleeved with the second section pipe, the synchronous belt is installed on the first section pipe and the third section pipe, the synchronous wheel is installed on the second section pipe, and the push rod motor is installed on the second section pipe and the third section pipe. When the push rod motor drives the third section pipe to move, the synchronous belt and the synchronous wheel are matched to drive the second section pipe to move. According to the utility model, the synchronous belt is matched with the synchronous wheel, and the synchronous belt is a flexible part which is arranged around the synchronous wheel, so that smooth transmission is ensured when the size of the synchronous wheel is small, and the problem of unsmooth transmission of the lifting column is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of lifting equipment, in particular to a lifting column driven by a synchronous belt. Background Art

[0002] Some existing lifting columns use a sprocket chain mechanism to transmit multi-section lifting tubes. When the inner size of the lifting column is small, a smaller sprocket needs to be used. Due to the pitch of the sprocket chain, the lifting column has a problem of not transmitting smoothly when the sprocket size is small. Utility Model Content

[0003] The purpose of the utility model is to provide a lifting column driven by a synchronous belt, which can ensure smooth transmission when the synchronous wheel is small in size through the cooperation of a flexible synchronous belt and a synchronous wheel, thereby solving the problem of smooth transmission of the lifting column.

[0004] The technical scheme of the utility model is as follows: a synchronous belt driven lifting column comprises a first section pipe, a second section pipe, a third section pipe, a synchronous wheel, a synchronous belt and a push rod motor.

[0005] The first tube section is sleeved on the second tube section, the second tube section is sleeved on the third tube section, the synchronous belt is installed on the first tube section and the third tube section, the synchronous wheel is installed on the second tube section, and the push rod motor is installed on the second tube section and the third tube section.

[0006] The synchronous belt is arranged around the synchronous belt.

[0007] When the push rod motor drives the third tube section to move, the synchronous belt and the synchronous wheel cooperate to drive the second tube section to move.

[0008] In a further embodiment, the lifting column further comprises: a first synchronous support rod, which passes through the second section tube and is installed on the first section tube, one end of the synchronous belt is installed on the first synchronous support rod, and the synchronous belt is connected to the first section tube through the first synchronous support rod.

[0009] In a further embodiment, the lifting column further comprises: a second synchronous support rod, which is mounted on the third tube section, the other end of the synchronous belt is mounted on the second synchronous support rod, and the synchronous belt is connected to the third tube section through the second synchronous support rod.

[0010] In a further embodiment, a synchronous guide groove is further provided at one end of the synchronous support rod close to the synchronous belt, and the synchronous belt is arranged in the synchronous guide groove, thereby improving the stability of the lifting column.

[0011] In a further embodiment, the lifting column further comprises: a synchronous fixing bracket, the synchronous fixing bracket is mounted on the second section pipe, and the synchronous wheel is mounted on the synchronous fixing bracket.

[0012] In a further embodiment, the lifting column further comprises: a drag chain, wherein the drag chain is installed on the first tube section and the third tube section, and the drag chain is used to accommodate the wires, thereby further reducing the volume and weight of the lifting column.

[0013] In a further embodiment, the lifting column further comprises: a guide wheel, wherein the guide wheel is connected to the synchronous wheel via a pin shaft.

[0014] The guide wheel is provided with an annular guide groove, and the drag chain is arranged around the guide wheel and cooperates with the annular guide groove, so as to further reduce the volume and weight of the lifting column.

[0015] In a further embodiment, the lifting column further comprises: a conductor block, which connects the second synchronous support rod and the drag chain, and the drag chain is installed on the third tube section through the conductor block and the second synchronous support rod.

[0016] The conductor block is provided with a conductor groove.

[0017] In a further embodiment, the lifting column further comprises: a first wire pressing block, wherein the first wire pressing block is mounted on the second synchronous support rod.

[0018] In a further embodiment, the lifting column further comprises: a second wire pressing block, wherein the second wire pressing block is installed on the wire block.

[0019] The beneficial effect of the utility model is that the application can ensure smooth transmission when the synchronous wheel is small in size by cooperating with the synchronous belt and the synchronous wheel, and solve the problem of unsmooth transmission of the lifting column.

[0020] Furthermore, no motor is installed on the synchronous wheel, so that the synchronous belt and the synchronous wheel act as a passive transmission mechanism to drive the second tube section to move relative to the first tube section, thereby reducing the number of motors and further reducing the volume and weight of the lifting column. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the internal structure of the utility model.

[0022] Figure 2 It is a partial cross-sectional schematic diagram of the utility model.

[0023] Figure 3 The utility model is a schematic diagram of the coordination of a synchronous wheel, a synchronous belt, a first synchronous support rod, a second synchronous support rod and a guide wheel.

[0024] Figure 4 The utility model is a schematic diagram of the coordination of a synchronous wheel, a synchronous belt, a guide wheel and a synchronous fixing bracket.

[0025] Figure 5It is a schematic diagram of an embodiment of the utility model in which the conductor block is connected to the second synchronous support rod and the drag chain, and the second synchronous support rod is provided with a first wire pressing block.

[0026] The reference numerals shown in the figure are: first tube section 100, bottom plate 101, second tube section 200, middle plate 201, third tube section 300, top plate 301, synchronous wheel 400, synchronous belt 401, first synchronous support rod 402, second synchronous support rod 403, push rod motor 500, drag chain 600, guide wheel 601, wire block 602, first wire pressing block 603, second wire pressing block 604. DETAILED DESCRIPTION

[0027] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0028] The utility model discloses a synchronous belt driven lifting column, which can ensure smooth transmission when the synchronous wheel is small in size through the cooperation of a flexible synchronous belt and a synchronous wheel, thus solving the problem of unsmooth transmission of the lifting column.

[0029] like Figure 1 The lifting column shown includes: a first section tube 100 , a second section tube 200 , a third section tube 300 , a synchronous wheel 400 , a synchronous belt 401 and a push rod motor 500 .

[0030] The first tube section 100 is sleeved on the second tube section 200, the second tube section 200 is sleeved on the third tube section 300, the synchronous belt 401 is installed on the first tube section 100 and the third tube section 300, the synchronous wheel 400 is installed on the second tube section 200, and the push rod motor 500 is installed on the second tube section 200 and the third tube section 300.

[0031] The synchronous belt 401 is arranged around the synchronous belt 401 , and a steel wire structure is arranged inside the synchronous belt 401 to improve the structural strength of the synchronous belt to ensure transmission accuracy and load capacity.

[0032] When the push rod motor 500 drives the third tube section 300 to move, the synchronous belt 401 and the synchronous wheel 400 cooperate to drive the second tube section 200 to move.

[0033] In this embodiment, a control unit and a wire are further provided in the lifting column, and the wire is used to connect the control unit and the push rod motor 500. A sensor can also be provided on the lifting rod, and the sensor and the control unit are connected by the wire.

[0034] like Figure 1As shown, a bottom plate 101 is provided at the bottom end of the first tube section 100, a middle plate 201 is provided at the bottom end of the second tube section 200, a top plate 301 is provided at the top end of the third tube section 300, a push rod motor 500 is installed on the second tube section 200 and the third tube section 300 through the middle plate 201 and the top plate 301, and a synchronous wheel 400 is installed on the second tube section 200 through the middle plate 201.

[0035] In this embodiment, the lifting column also includes: a first synchronous support rod 402, which passes through the second section tube 200 and is installed on the first section tube 100, one end of the synchronous belt 401 is installed on the first synchronous support rod 402, and the synchronous belt 401 is connected to the first section tube 100 through the first synchronous support rod 402.

[0036] In this embodiment, the lifting column further includes: a second synchronous support rod 403 installed on the third tube section 300 , the other end of the synchronous belt 401 is installed on the second synchronous support rod 403 , and the synchronous belt 401 is connected to the third tube section 300 through the second synchronous support rod 403 .

[0037] In this embodiment, the synchronous support rod is also provided with a synchronous guide groove at the moving end close to the synchronous belt 401. Figure 3 The synchronous belt 401 is shown partially disposed in the synchronous guide groove.

[0038] Limiting the lateral direction of the synchronous belt 401 by the synchronous wire groove can reduce the lateral deviation rate of the synchronous belt 401, and further improve the stability of the lifting column.

[0039] In this embodiment, if Figure 4 The lifting column shown further includes: a synchronous fixing bracket, the synchronous fixing bracket is mounted on the second section pipe 200, and the synchronous wheel 400 is mounted on the synchronous fixing bracket.

[0040] In this embodiment, if Figure 1 The lifting column shown further includes: a drag chain 600 , which is installed on the first tube section 100 and the third tube section 300 , and the drag chain 600 is used to accommodate the wires.

[0041] By accommodating the wires through the drag chain 600, the wires can be moved with the lifting column without using spring wires, which can further reduce the occupancy rate of the internal space of the lifting column, further reduce the volume and weight of the lifting column, and solve the problems of high occupancy rate and heavy weight of the internal space of the lifting column using spring wires in the prior art.

[0042] In this embodiment, if Figure 1 The lifting column shown also includes: a guide wheel 601, and the guide wheel 601 is connected to the synchronous wheel 400 through a pin shaft.

[0043] The guide wheel 601 is provided with an annular guide groove, and the drag chain 600 is arranged around the guide wheel 601 and cooperates with the annular guide groove.

[0044] The guide wheel 601 can make the drag chain 600 rise and fall along with the lifting column, and the guide groove can limit the drag chain 600 laterally, which can reduce the lateral deviation rate of the drag chain 600 and further improve the stability of the lifting column.

[0045] In this embodiment, if Figure 5 The lifting column shown further includes: a conductor block 602 , which connects the second synchronous support rod 403 and the drag chain 600 , and the drag chain 600 is installed on the top plate 301 of the third tube section 300 through the conductor block 602 and the second synchronous support rod 403 .

[0046] The conductor block 602 is provided with a conductor groove.

[0047] In this embodiment, if Figure 5 The lifting column shown further includes: a first wire pressing block 603 , which is installed on the second synchronous support rod 403 .

[0048] In this embodiment, if Figure 5 The lifting column shown further includes: a second wire pressing block 604 , which is installed on the wire block 602 .

[0049] The wire block 602 and the first wire pressing block 603 are used to extend the wire of the third tube section 300 outside the drag chain 600 along the second synchronous support rod 403 to the top plate 301 instead of extending along the inner wall of the third tube section 300 to the top plate 301 .

[0050] The second wire pressing block 604 cooperates with the guide groove of the wire block 602 to fix the wire bent in the guide groove of the wire block 602 .

[0051] Working principle: when the length of the lifting column needs to be increased, the push rod motor 500 drives the third section tube 300 to move away from the first section tube 100. At this time, the third section tube 300 drives the synchronous belt 401 to move around the synchronous wheel 400. The synchronous belt 401, the first synchronous support rod 402 and the second synchronous support rod 403 cooperate to drive the second section tube 200 to move away from the first section tube 100, thereby increasing the overall length of the lifting column. In this process, the third section tube 300 drives the end of the drag chain 600 to move, and the guide wheel 601 drives the middle part of the drag chain 600 to move.

[0052] When the length of the lifting column needs to be reduced, the push rod motor 500 drives the third section tube 300 to move toward the direction close to the first section tube 100. At this time, the third section tube 300 drives the synchronous belt 401 to move around the synchronous wheel 400. The synchronous belt 401, the first synchronous support rod 402 and the second synchronous support rod 403 cooperate to drive the second section tube 200 to move toward the direction close to the first section tube 100, thereby increasing the overall length of the lifting column. In this process, the third section tube 300 drives the end of the drag chain 600 to move, and the guide wheel 601 drives the middle part of the drag chain 600 to move.

[0053] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be interpreted as limiting the present invention itself. Various changes can be made to it in form and detail without departing from the spirit and scope of the present invention defined in the appended claims.

Claims

1. A synchronous belt driven lifting column, characterized in that: include: The first tube section, the second tube section, the third tube section, a synchronous wheel, a synchronous belt and a push rod motor; The first section pipe is sleeved on the second section pipe, the second section pipe is sleeved on the third section pipe, the synchronous belt is installed on the first section pipe and the third section pipe, the synchronous wheel is installed on the second section pipe, and the push rod motor is installed on the second section pipe and the third section pipe; The synchronous belt is arranged around the synchronous belt; When the push rod motor drives the third tube section to move, the synchronous belt and the synchronous wheel cooperate to drive the second tube section to move.

2. A synchronous belt driven lifting column according to claim 1, characterized in that: Also includes: The first synchronous support rod passes through the second section tube and is installed on the first section tube. One end of the synchronous belt is installed on the first synchronous support rod. The synchronous belt is connected to the first section tube through the first synchronous support rod.

3. A synchronous belt driven lifting column according to claim 2, characterized in that: Also includes: The second synchronous support rod is installed on the third tube section, the other end of the synchronous belt is installed on the second synchronous support rod, and the synchronous belt is connected to the third tube section through the second synchronous support rod.

4. A synchronous belt driven lifting column according to claim 2 or 3, characterized in that: The synchronous support rod is also provided with a synchronous guide groove at one end close to the synchronous belt, and the synchronous belt is arranged in the synchronous guide groove.

5. The synchronous belt driven lifting column according to claim 1, characterized in that: Also includes: A synchronous fixing bracket is installed on the second section pipe, and the synchronous wheel is installed on the synchronous fixing bracket.

6. A synchronous belt driven lifting column according to claim 3, characterized in that: Also includes: A drag chain is installed on the first tube section and the third tube section, and is used to accommodate the wires.

7. A synchronous belt driven lifting column according to claim 6, characterized in that: Also includes: A guide wheel, wherein the guide wheel is connected to the synchronous wheel through a pin; The guide wheel is provided with an annular guide groove, and the drag chain is arranged around the guide wheel and cooperates with the annular guide groove.

8. A synchronous belt driven lifting column according to claim 6, characterized in that: Also includes: A conductor block, which connects the second synchronous support rod and the drag chain, and the drag chain is installed on the third tube section through the conductor block and the second synchronous support rod; The conductor block is provided with a conductor groove.

9. A synchronous belt driven lifting column according to claim 8, characterized in that: Also includes: A first wire pressing block is installed on the second synchronous support rod.

10. A synchronous belt driven lifting column according to claim 8, characterized in that: Also includes: A second wire pressing block is installed on the conductor block.

Images