Lifting structure for lifting roller bed

Abstract

The invention relates to the field of lifting roller beds, and discloses a lifting structure for a lifting roller bed, which comprises a bottom plate for supporting the whole device, and the upper surface of the bottom plate is fixedly connected with a support rod; the supporting plate is fixedly connected to the upper surface of the supporting rod, and a rail mechanism is arranged on the upper surface of the supporting plate; the track mechanism comprises a fixing sleeve, the fixing sleeve is fixedly connected to the upper surface of the supporting plate, the outer wall of the fixing sleeve is slidably connected with a moving sleeve, sliding grooves are formed in the front surface of the moving sleeve and the front surface of the fixing sleeve, a driving motor is installed at the top end of the moving sleeve, and a driving screw is fixedly connected to the bottom end of an output shaft of the driving motor. According to the device, through the arrangement of the upper locking groove, when the driving screw drives the transmission block to move upwards to the highest position of the inner wall of the moving sleeve, the transmission block is blocked by the moving sleeve and cannot continue to move upwards, and at the moment, the driving screw continues to rotate to drive the transmission block to rotate synchronously with the driving screw.

Description

Technical Field

[0001] The present invention relates to the field of lifting roller beds, in particular to a lifting structure for lifting roller beds. Background Art

[0002] The lifting roller bed is a common conveying device. It can move items with the help of internally installed conveyor rollers, and can move up and down under the drive of the lifting device, so that items in low places can be transported to high places. The whole device is more convenient during transportation.

[0003] In the prior art, when carrying out transportation operations, it is necessary to first transport the goods to the upper surface of the roller bed, then drive the roller bed to rise through the lifting device, and finally use the roller bed to send the items out. During this process, the goods will move from one side of the roller bed to the other side, which will inevitably cause the center of gravity of the roller bed to change, and the force on each lifting device will also change. When the roller bed is in a low position, it can remain stable under the support of the ground or other supporting structures. However, when the roller bed is in a higher position, the lifting screw in the lifting device will bear the change in gravity, which can easily cause the outer wall thread of the lifting screw to wear, thereby reducing the service life of the lifting device. For this reason, a lifting structure for a lifting roller bed is proposed to solve the above problems. Summary of the Invention

[0004] In order to make up for the above shortcomings, the present invention provides a lifting structure for a lifting roller bed, which aims to improve the problem in the prior art that "when the roller bed is at a high place, the lifting screw will bear the change of gravity, which will reduce the service life of the lifting device."

[0005] In order to achieve the above object, the present invention adopts the following technical solution: a lifting structure for a lifting roller bed, comprising: A bottom plate, used to support the entire device, with a support rod fixedly connected to the upper surface of the bottom plate; A support plate is fixedly connected to the upper surface of the support rod, and a track mechanism is provided on the upper surface of the support plate; The top end of the movable sleeve is fixedly connected to the top surface of the supporting plate, and the outer wall of the movable sleeve is slidably connected to the movable sleeve. The movable sleeve and the front surface of the fixed sleeve are both provided with a slide groove. The top end of the movable sleeve is installed with a driving motor, and the bottom end of the driving motor output shaft is fixedly connected to the driving screw, and the outer wall of the driving screw is threadedly connected to the transmission block, and the transmission block passes through and is slidably connected to the inner wall of the slide groove. The front surface of the movable sleeve is provided with an upper locking groove, and the front surface of the fixed sleeve is provided with a lower locking groove. The lower surface of the transmission block is rotatably connected with a supporting block, and the supporting block passes through and is slidably connected to the left surface of the movable sleeve and the fixed sleeve; An adjustment component is provided on the right surface of the fixed sleeve and is used to adjust the height of the movable sleeve; The locking assembly is arranged on the inner wall of the supporting plate.

[0006] As a further description of the above technical solution: The transmission block includes a threaded sleeve, which is configured as a hollow circular sleeve and has a threaded groove on its inner wall. A protrusion is fixedly connected to the outer wall of the threaded sleeve.

[0007] As a further description of the above technical solution: The adjusting component includes a movable frame, which is fixedly connected to the right surface of the movable sleeve, and the right surface of the fixed sleeve is fixedly connected to the fixed frame.

[0008] As a further description of the above technical solution: An adjusting screw is passed through and rotatably connected to the upper surface of the fixed frame, and the adjusting screw is passed through and threadedly connected to the lower surface of the movable frame.

[0009] As a further description of the above technical solution: The lower surface of the fixing frame is fixedly connected with a retaining frame, and the right surface of the retaining frame passes through and is rotatably connected with a turning handle, and the turning handle is transmission-connected to the adjusting screw through a bevel gear set.

[0010] As a further description of the above technical solution: The upper surface of the support plate is fixedly connected to a protective cabinet, and the right surface of the protective cabinet is rotatably connected to a cabinet door.

[0011] As a further description of the above technical solution: The locking assembly includes a transmission rod, which is elastically connected to the inner wall of the support plate through a locking spring. The transmission rod is slidably connected to the inner wall of the support plate. The upper surface of the transmission rod is fixedly connected to a locking block, and the left surface of the cabinet door is fixedly connected to a locking sleeve.

[0012] As a further description of the above technical solution: The left end of the transmission rod is fixedly connected with an unlocking block, and the unlocking block passes through and is inserted into the upper surface of the inner wall of the fixing sleeve close to the lower locking groove.

[0013] As a further description of the above technical solution: The upper surface of the unlocking block is arranged to be inclined.

[0014] As a further description of the above technical solution: The supporting block is arranged in a concave shape.

[0015] The present invention has the following beneficial effects: 1. In the present invention, by providing an upper locking groove, when the driving screw drives the transmission block to move up to the highest position of the inner wall of the movable sleeve, the transmission block will be blocked by the movable sleeve and cannot continue to move upward. At this time, the driving screw continues to rotate, which will drive the transmission block to rotate synchronously with it, and finally drive the transmission block to rotate and insert into the interior of the upper locking groove. In this way, when the gravity borne by the support block increases, the pressure can be transmitted to the movable sleeve with the help of the transmission block, which can reduce the damage to the driving screw caused by the increase of gravity and increase the service life of the overall device.

[0016] 2. In the present invention, by setting an adjustment component, when it is necessary to adjust the lifting height of the device, the adjusting screw can be driven to rotate by rotating the handle, so that the movable sleeve can be driven to move up and down. The moving distance of the transmission block can be adjusted by adjusting the height of the movable sleeve. In this way, the entire device can be supported and locked at multiple heights, and the overall device has good applicability.

[0017] 3. In the present invention, by setting a locking assembly, when the transmission block is at the lowest position of the inner wall of the fixed sleeve, the driving screw continues to rotate to drive the transmission block to rotate into the interior of the lower locking groove, thereby squeezing the unlocking block to force it to move downward. The downward movement of the unlocking block can drive the locking block to move downward through the transmission rod, thereby driving the locking block to disengage from the interior of the locking sleeve, so as to achieve unlocking of the cabinet door. Such a setting can ensure that the height of the movable sleeve can only be adjusted when the support block is at the lowest position, and the overall safety of the device is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the overall device of the present invention; Figure 2 It is a schematic front view of the three-dimensional structure of the overall device of the present invention; Figure 3 It is a schematic side view of the three-dimensional structure of the overall device of the present invention; Figure 4 Schematic diagram of the three-dimensional structure cross section of the overall device of the present invention; Figure 5 It is a schematic oblique cross-sectional view of the three-dimensional structure of the overall device of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the fixed sleeve and the movable sleeve in the present invention.

[0019] Legend: 1. Base plate; 2. Support rod; 3. Support plate; 4. Track mechanism; 41. Fixed sleeve; 42. Moving sleeve; 43. Slide groove; 44. Upper locking groove; 45. Lower locking groove; 46. Transmission block; 461. Threaded sleeve; 462. Bump; 5. Support block; 6. Drive motor; 7. Adjustment assembly; 71. Protective cabinet; 72. Moving frame; 73. Fixed frame; 74. Adjustment screw; 75. Turn handle; 76. Retaining frame; 77. Bevel gear set; 78. Cabinet door; 8. Drive screw; 9. Locking assembly; 91. Locking sleeve; 92. Transmission rod; 93. Locking block; 94. Unlocking block; 95. Locking spring. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Reference Figure 1-Figure 3, an embodiment of the present invention provides: a lifting structure for a lifting roller bed, characterized in that it includes: a base plate 1 for supporting the entire device, the base plate 1 can be directly fixed to the ground at the work site, so as to provide support for the entire device, the upper surface of the base plate 1 is fixedly connected to the support rod 2; the support plate 3 is fixedly connected to the upper surface of the support rod 2, and the upper surface of the support plate 3 is provided with a track mechanism 4; the track mechanism 4 includes a fixed sleeve 41 for supporting the entire track mechanism 4, the fixed sleeve 41 is a hollow circular sleeve, the fixed sleeve 41 is fixedly connected to the upper surface of the support plate 3, the outer wall of the fixed sleeve 41 is slidably connected to the movable sleeve 42, the movable sleeve 42 can slide vertically up and down the outer wall of the fixed sleeve 41, so that the height of the entire track mechanism 4 can be adjusted, the movable sleeve 42 and the front surface of the fixed sleeve 41 are both provided with a slide groove 43, the movable sleeve 42 and the slide groove 43 provided on the front surface of the fixed sleeve 41 are connected to each other without interruption, and the top of the movable sleeve 42 is provided with a driving motor 6 for driving the driving screw 8 to rotate, and the bottom end of the output shaft of the driving motor 6 is fixedly connected with The driving screw 8 is used to drive the transmission block 46 to move. The outer wall of the driving screw 8 is threadedly connected with the transmission block 46. When the driving screw 8 rotates, it can drive the transmission block 46 to move up and down. The transmission block 46 is penetrated and slidably connected to the inner wall of the slide 43. The slide 43 can provide guidance for the up and down movement of the transmission block 46. The front surface of the movable sleeve 42 is provided with an upper locking groove 44. When the transmission block 46 is on the inner wall of the upper locking groove 44, it will not be able to move up and down. At the same time, when it is squeezed, the pressure can be transmitted to the movable sleeve 42. The sleeve 42 can reduce the damage to the driving screw 8. The front surface of the fixed sleeve 41 is provided with a lower locking groove 45. The lower surface of the transmission block 46 is rotatably connected to the support block 5. When the transmission block 46 moves upward, it can drive the support block 5 to move upward synchronously, so that the roller bed can be driven to move. The support block 5 passes through and is slidably connected to the left surface of the movable sleeve 42 and the fixed sleeve 41; the adjusting component 7 is provided on the right surface of the fixed sleeve 41, and is used to adjust the height of the movable sleeve 42; the locking component 9 is provided on the inner wall of the support plate 3.

[0022] Reference Figure 3 、 Figure 4 and Figure 6The transmission block 46 includes a threaded sleeve 461, which is set as a hollow circular sleeve and has a thread groove on its inner wall. When the driving screw 8 rotates, it can drive the threaded sleeve 461 to move by squeezing the thread groove on the inner wall of the threaded sleeve 461. The outer wall of the threaded sleeve 461 is fixedly connected with a protrusion 462. When the threaded sleeve 461 rotates, it can drive the protrusion 462 to insert into the upper locking groove 44 or the lower locking groove 45. The adjustment component 7 includes a moving frame 72, which is fixedly connected to the moving sleeve The right surface of 42, when the movable frame 72 moves up and down, it can drive the movable sleeve 42 to move up and down on the outer wall of the fixed sleeve 41, and the right surface of the fixed sleeve 41 is fixedly connected to the fixed frame 73, and the upper surface of the fixed frame 73 passes through and is rotatably connected to the adjusting screw 74, which passes through and is threadedly connected to the lower surface of the movable frame 72. By rotating the adjusting screw 74, the movable frame 72 can be driven to move up and down. The thread rise angle of the outer wall of the adjusting screw 74 is less than 15°, so it has self-locking ability when in use.

[0023] Reference Figure 3 、 Figure 4 and Figure 6 The lower surface of the fixing frame 73 is fixedly connected to a retaining frame 76 for supporting the bevel gear set 77. The retaining frame 76 can provide stable support for the bevel gear set 77 and can be easily lubricated. The right surface of the retaining frame 76 passes through and is rotatably connected to a turning handle 75. The turning handle 75 is connected to the adjusting screw 74 through the bevel gear set 77. The bevel gear set 77 can realize vertical transmission. Therefore, the adjusting screw 74 can be driven to rotate by rotating the turning handle 75. The upper surface of the support plate 3 is fixedly connected to the protective cabinet 71. The right surface of the protective cabinet 71 is rotatably connected to the cabinet door 78. The protective frame 71 can protect the overall structure of the adjustment assembly 7. When the height of the movable sleeve 42 needs to be adjusted, the cabinet door 78 needs to be opened first before the turning handle 75 can be adjusted.

[0024] Reference Figure 4-Figure 6The locking assembly 9 includes a transmission rod 92 for transmitting power. The transmission rod 92 is elastically connected to the inner wall of the support plate 3 by a locking spring 95. The locking spring 95 can transmit the transmission rod 92 upward, and the transmission rod 92 is slidably connected to the inner wall of the support plate 3. The transmission rod 92 can slide up and down on the inner wall of the support plate 3. The upper surface of the transmission rod 92 is fixedly connected to a locking block 93. The left surface of the cabinet door 78 is fixedly connected to a locking sleeve 91. When the transmission rod 92 is in the high point position, it can drive the locking block 93 to insert into the interior of the locking sleeve 91, so that the locking sleeve 91 can be locked. At this time, the operator will not be able to open the cabinet door 78. The left end of the movable rod 92 is fixedly connected to an unlocking block 94, which passes through and is inserted into the upper surface of the inner wall of the fixed sleeve 41 near the lower locking groove 45. When the transmission block 46 is at the low point inside the slide groove 43, the driving screw 8 continues to rotate to drive the transmission block 46 to rotate into the interior of the lower locking groove 45, so as to squeeze the unlocking block 94 to move it downward. The unlocking block 94 will drive the locking block 93 to disengage from the inner wall of the locking groove 91 by squeezing the transmission rod 92. The upper surface of the unlocking block 94 is set to be inclined. The inclined design makes it easier for the unlocking block 94 to move downward when squeezed, and the support block 5 is set to be concave.

[0025] Working principle: When the driving motor 6 is started, its output shaft drives the driving screw 8 to rotate. The rotation of the driving screw 8 will drive the transmission block 46 to move up and down under the guidance of the slide groove 43, and then drive the support block 5 to move up and down to achieve the height adjustment of the roller bed. When the transmission block 46 moves to the highest position of the inner wall of the movable sleeve 42, the driving screw 8 continues to rotate to drive the transmission block 46 to rotate and insert into the upper locking groove 44. In this way, the gravity borne by the support block 5 can be transmitted to the movable sleeve 42 through the transmission block 46, thereby achieving the effect of reducing the wear of the driving screw 8.

[0026] When the height of the movable sleeve 42 needs to be adjusted, the transmission block 46 must first be moved down to the lowest position of the inner wall of the fixed sleeve 41, and then the driving screw 8 is driven to continue to rotate to drive the transmission block 46 to rotate into the lower locking groove 45, thereby squeezing the unlocking block 94 to move it downward, and the unlocking block 94 will drive the locking block 93 to disengage from the locking sleeve 91 through the transmission rod 92 to unlock the cabinet door 78. Then, the turning handle 75 is rotated to drive the adjusting screw 74 to rotate through the bevel gear set 77, so that the movable frame 72 drives the movable sleeve 42 to move up and down on the outer wall of the fixed sleeve 41. After the adjustment is completed, the reverse operation is performed to disengage the transmission block 46 from the lower locking groove 45, and the locking spring 95 pushes the transmission rod 92 to move up, and the locking block 93 is reinserted into the locking sleeve 91 to lock the cabinet door 78, ensuring that the height of the movable sleeve 42 can be adjusted only when the support block 5 is in the lowest position to ensure the safety of the device.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A lifting structure for a lifting roller bed, characterized in that: include: A base plate (1) is used to support the entire device, and a support rod (2) is fixedly connected to the upper surface of the base plate (1); A support plate (3) is fixedly connected to the upper surface of the support rod (2), and a track mechanism (4) is provided on the upper surface of the support plate (3); The track mechanism (4) includes a fixed sleeve (41), the fixed sleeve (41) is fixedly connected to the upper surface of the support plate (3), the outer wall of the fixed sleeve (41) is slidably connected to the movable sleeve (42), the front surfaces of the movable sleeve (42) and the fixed sleeve (41) are both provided with a slide groove (43), the top of the movable sleeve (42) is installed with a driving motor (6), the bottom end of the output shaft of the driving motor (6) is fixedly connected to the driving screw (8), the outer wall of the driving screw (8) is threadedly connected to a transmission block (46), the transmission block (46) passes through and is slidably connected to the inner wall of the slide groove (43), the front surface of the movable sleeve (42) is provided with an upper locking groove (44), the front surface of the fixed sleeve (41) is provided with a lower locking groove (45), the lower surface of the transmission block (46) is rotatably connected to a support block (5), and the support block (5) passes through and is slidably connected to the left surface of the movable sleeve (42) and the fixed sleeve (41); An adjustment component (7), provided on the right surface of the fixed sleeve (41), for adjusting the height of the movable sleeve (42); The locking assembly (9) is arranged on the inner wall of the support plate (3).

2. The lifting structure for a lifting roller bed according to claim 1, characterized in that: The transmission block (46) comprises a threaded sleeve (461), the threaded sleeve (461) being configured as a hollow circular sleeve and having a threaded groove provided on its inner wall, and a protrusion (462) being fixedly connected to the outer wall of the threaded sleeve (461).

3. The lifting structure for a lifting roller bed according to claim 1, characterized in that: The adjustment assembly (7) comprises a movable frame (72), wherein the movable frame (72) is fixedly connected to the right surface of the movable sleeve (42), and the right surface of the fixed sleeve (41) is fixedly connected to a fixed frame (73).

4. The lifting structure for a lifting roller bed according to claim 3, characterized in that: An adjusting screw (74) passes through and is rotatably connected to the upper surface of the fixed frame (73), and the adjusting screw (74) passes through and is threadedly connected to the lower surface of the movable frame (72).

5. The lifting structure for a lifting roller bed according to claim 4, characterized in that: The lower surface of the fixing frame (73) is fixedly connected to a retaining frame (76), and the right surface of the retaining frame (76) is penetrated and rotatably connected to a turning handle (75), and the turning handle (75) is transmission-connected to the adjusting screw (74) via a bevel gear set (77).

6. The lifting structure for a lifting roller bed according to claim 3, characterized in that: The upper surface of the support plate (3) is fixedly connected to a protective cabinet (71), and the right surface of the protective cabinet (71) is rotatably connected to a cabinet door (78).

7. The lifting structure for a lifting roller bed according to claim 6, characterized in that: The locking assembly (9) includes a transmission rod (92), the transmission rod (92) being elastically connected to the inner wall of the support plate (3) via a locking spring (95), the transmission rod (92) being slidably connected to the inner wall of the support plate (3), the upper surface of the transmission rod (92) being fixedly connected to a locking block (93), and the left surface of the cabinet door (78) being fixedly connected to a locking sleeve (91).

8. The lifting structure for a lifting roller bed according to claim 7, characterized in that: The left end of the transmission rod (92) is fixedly connected to an unlocking block (94), and the unlocking block (94) passes through and is inserted into the upper surface of the inner wall of the fixing sleeve (41) near the lower locking groove (45).

9. The lifting structure for a lifting roller bed according to claim 8, characterized in that: The upper surface of the unlocking block (94) is arranged to be inclined.

10. The lifting structure for a lifting roller bed according to claim 1, characterized in that: The support block (5) is configured in a concave shape.

Images