Vertical blind plate rotary lifting structure

Abstract

The utility model discloses a vertical blind plate rotary lifting structure, which relates to the technical field of blind plate use, and mainly comprises a support component, a lifting device and a rotating device, the support component is fixed on a blind plate seat, the lifting device is used for controlling a blind plate cover to ascend and descend, one end of the rotating device is connected with the support component, and the other end of the rotating device is connected with the lifting device. The end, connected with the supporting assembly, of the rotating device is provided with a transposition device, and the transposition device is used for driving the rotating device to rotate and locking the rotating device after the rotating device rotates in place. The transposition device drives the rotating device to rotate and can control the rotating angle of the rotating device, so that the blind plate cover can rotate by any angle at will and be locked at the same time, and the use safety of the vertical blind plate rotating lifting structure is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of blind plate use, in particular to a vertical blind plate rotating lifting and lowering structure. Background Art

[0002] Vertical blind plates are used to be installed on the circular openings of vertically installed pressure pipes or pressure vessels, and are mainly used as inspection ports for main pipes or large material imports and exports. The device is required to be able to be opened or closed quickly, and is mainly composed of blind plate seats, blind plate covers, hook rings or pressure rings, lifting mechanisms, rotating mechanisms and other components. After the blind plate cover is lifted into place, the blind plate cover will rotate along the circumferential direction of the vertical axis due to the uneven foundation surface of the equipment or other factors, which will bring some safety hazards. In addition, the existing blind plate can only be lifted and lowered in the vertical direction, and cannot be rotated at any angle in the circumferential direction and locked.

[0003] Patent CN14772518A discloses a vertical blind plate rotating lifting and lowering structure, including a swivel arm assembly, which includes a swivel arm limit block and a swivel arm locating pin. The swivel arm limit block and the swivel arm locating pin are used to limit the rotation of the swivel arm assembly. Since the position of the pin hole is fixed, the swivel arm assembly can only rotate at a set angle, and the swivel arm assembly cannot be limited when rotating at other angles, which will also cause the blind plate cover to rotate along the vertical axis direction, posing a safety hazard.

[0004] Therefore, it is urgent to provide a vertical blind plate rotating lifting and lowering structure to solve the above problems existing in the prior art. Utility Model Content

[0005] The purpose of the utility model is to provide a vertical blind plate rotating lifting and lowering structure to solve the problems existing in the above-mentioned prior art, so that the blind plate cover can be rotated to any angle and locked at the same time, thereby improving the safety of the vertical blind plate rotating lifting and lowering structure.

[0006] To achieve the above purpose, the utility model provides the following solutions:

[0007] The utility model provides a vertical blind plate rotating lifting and lowering structure, comprising:

[0008] A support assembly, the support assembly is used to be fixed on the blind plate seat;

[0009] A lifting and lowering device, the lifting and lowering device is used to control the rise and fall of the blind cover;

[0010] A rotating device, one end of which is connected to the supporting assembly, and the other end of which is connected to the lifting and lowering device, wherein a transfer device is provided at the end of the rotating device connected to the supporting assembly, and the transfer device is used to drive the rotation of the rotating device and lock the rotating device after the rotating device rotates into place.

[0011] Preferably, the transfer device includes a slewing bearing and an annular envelope worm, the slewing bearing is fixedly connected to the rotating device, one end of the annular envelope worm is meshed with the slewing bearing, and the other end is connected to a first rotating device, and the first rotating device is used to drive the annular envelope worm to rotate and then drive the slewing bearing to rotate, so as to control the rotation angle of the rotating device.

[0012] Preferably, the support assembly comprises a support column, the support column is connected to the flange of the blind plate seat via a first connecting screw, and the support column and the flange of the blind plate seat are also connected via a positioning pin.

[0013] Preferably, the supporting column includes a column shaft, a sleeve, a column shaft tube, and a column base plate. The column base plate is fixedly connected to the flange of the blind plate seat. The column shaft tube is fixedly connected to the column base plate and vertically arranged above the column base plate. A column bottom rib is fixedly arranged below the column base plate. A plurality of column reinforcement ribs are arranged above the column base plate. The plurality of column reinforcement ribs are circumferentially arranged and fixedly connected along the column shaft tube. The sleeve is arranged above the column shaft tube to provide a fixed space for the column shaft. The column shaft is rotatably connected to the rotating device.

[0014] Preferably, the rotating device includes a swivel arm, one end of which is sleeved on the column shaft and fixedly connected to the swivel bearing through a swivel arm flange to ensure that the swivel arm can rotate around the column shaft, and the other end of the swivel arm is connected to the lifting and lowering device.

[0015] Preferably, the swing arm includes a swing arm flange, a swing arm sleeve, a swing arm cross plate and a swing arm vertical plate. The swing arm cross plate and the swing arm vertical plate are perpendicular to each other and fixedly connected. The swing arm sleeve is fixedly connected to the swing arm cross plate and the swing arm vertical plate. The swing arm flange is arranged on the lower bottom surface of the swing arm sleeve and fixedly connected. The swing arm sleeve is used to be sleeved on the column shaft. An installation hole and a fixing hole are formed on the end of the swing arm cross plate away from the swing arm sleeve. The installation hole is used to install the lifting and lowering device, and the fixing hole is used for bolts to pass through so as to fix the lifting and lowering device to the swing arm cross plate.

[0016] Preferably, it further comprises a tapered roller bearing, which is arranged on the inner side surface of the swing arm sleeve, and the tapered roller bearings are arranged on the upper end and the lower end of the inner wall of the swing arm sleeve.

[0017] Preferably, the lifting and lowering device includes a lifting and lowering screw, a second rotating device and a turbine reducer, the second rotating device is connected to a worm, the worm is connected to the turbine reducer, the turbine reducer includes a thrust bearing, a ball screw pair and a turbine, one end of the ball screw pair is connected to the thrust bearing, and the other end is connected to the turbine, one end of the lifting and lowering screw passes through the thrust bearing, the ball screw pair, the turbine and the mounting hole from top to bottom in sequence, and the other end is fixedly connected to the blind plate cover.

[0018] Preferably, a guide card is also included, one end of which is used to be fixedly connected to the blind plate cover, and the other end is provided with a guide hole, and the guide hole is used for the guide pin on the blind plate seat to pass through, so as to provide precise positioning for the closing of the blind plate cover.

[0019] Preferably, the guide card plate is a Z-shaped card plate, and the end connected to the blind plate cover is lower than the end through which the guide pin passes.

[0020] Compared with the prior art, the utility model has achieved the following technical effects:

[0021] The support assembly of the utility model is fixed on the blind plate seat, and the lifting and lowering device is used to control the rise and fall of the blind plate cover. One end of the rotating device is connected to the support assembly, and the other end is connected to the lifting and lowering device. The end of the rotating device connected to the support assembly is provided with a transfer device, which is used to drive the rotation of the rotating device and lock the rotating device after the rotating device is rotated into place, so that the blind plate cover can be rotated to any angle and locked at the same time, thereby improving the safety of the vertical blind plate rotating lifting and lowering structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a structural schematic diagram of the vertical blind plate rotating lifting and lowering structure in the embodiment of the utility model;

[0024] Figure 2 It is a cross-sectional view of the vertical blind plate rotating lifting and lowering structure in the embodiment of the utility model;

[0025] Figure 3 This is a cross-sectional view of a support column in an embodiment of the utility model;

[0026] Figure 4 This is a schematic diagram of the structure of the rotating arm in the embodiment of the utility model;

[0027] Figure 5 This is a cross-sectional view of a support column in an embodiment of the utility model;

[0028] Figure 6 It is a side view of the supporting column in the embodiment of the utility model;

[0029] Figure 7 It is a top view of the supporting column in the embodiment of the utility model.

[0030] In the figure: 1-guide card plate, 2-guide pin, 3-lifting and lowering screw, 4-lifting and lowering device, 5-swing arm, 6-first rotating device, 7-support column, 8-positioning pin, 9-first connecting screw, 10-blind plate cover, 11-blind plate seat, 12-tapered roller bearing, 13-second connecting screw, 14-third connecting screw, 15-swing arm flange, 16-swing arm sleeve, 17-swing arm cross plate, 18-swing arm vertical plate, 19-column bottom rib, 20-column bottom plate, 21-column reinforcement rib, 22-column shaft tube, 23-sleeve, 24-column shaft, 25-second rotating device, 26-mounting hole, 27-fixing hole, 28-transfer device. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] The purpose of the utility model is to provide a vertical blind plate rotating lifting and lowering structure to solve the problems existing in the above-mentioned prior art, so that the blind plate cover can be rotated to any angle and locked at the same time, thereby improving the safety of the vertical blind plate rotating lifting and lowering structure.

[0033] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0034] like Figure 1-Figure 7 As shown, the utility model provides a vertical blind plate rotating lifting and lowering structure, including a support assembly, and the support assembly is used to be fixed on the blind plate seat 11;

[0035] A lifting and lowering device 4, which is used to control the rise and fall of the blind cover 10;

[0036] A rotating device, one end of the rotating device is connected to the supporting assembly, and the other end is connected to the lifting and lowering device 4, wherein a transfer device 28 is provided at one end of the rotating device connected to the supporting assembly, and the transfer device 28 is used to drive the rotation of the rotating device, and lock the rotating device after the rotating device is rotated into place. The transfer device 28 drives the rotating device to rotate and can control the rotation angle of the rotating device, so that the blind plate cover 10 can be rotated to any angle at will and locked at the same time, thereby improving the safety of the vertical blind plate rotating lifting and lowering structure.

[0037] In this embodiment, the transfer device 28 includes a slewing bearing and an annular envelope worm. The slewing bearing is fixedly connected to the rotating device. One end of the annular envelope worm is meshed with the slewing bearing, and the other end is connected to the first rotating device 6. The first rotating device 6 is used to drive the annular envelope worm to rotate and then drive the slewing bearing to rotate, so as to control the rotation angle of the rotating device. The annular envelope worm has a self-locking property, and the blind cover 10 can be rotated to any position to achieve in-situ positioning. The problem of safety hazards caused by the blind cover rotating by itself after being manually pushed into place will not occur. The slewing bearing has the characteristics of large transmission torque and smooth operation. At the same time, it can withstand large radial and axial loads and strong overturning moments. The slewing bearing is used in combination with the annular envelope worm, which can save manpower and time, and at the same time ensure that the rotating device can lock itself after rotating a certain angle, which is safer to use.

[0038] It should be noted that the indexing device 28 may also be other types of devices, as long as they can drive the rotating device to rotate and lock it, such as the use of a motor with a reducer.

[0039] In this embodiment, the support assembly includes a support column 7, which is connected to the flange of the blind plate seat 11 through a first connecting screw 9, and the support column 7 and the flange of the blind plate seat 11 are also connected through a positioning pin 8. The positioning pin 8 can reduce the shear force borne by the first connecting screw 9 when the rotating device drives the blind plate cover 10 to rotate, thereby improving the reliability of the device.

[0040] In this embodiment, the support column 7 includes a column shaft 24, a shaft sleeve 23, a column shaft tube 22, and a column bottom plate 20. The column bottom plate 20 is fixedly connected to the flange of the blind plate seat 11, the column shaft tube 22 is fixedly connected to the column bottom plate 20 and is vertically arranged above the column bottom plate 20, a column bottom rib 19 is fixedly arranged below the column bottom plate 20, and a plurality of column reinforcing ribs 21 are arranged above the column bottom plate 20, and the plurality of column reinforcing ribs 21 are arranged circumferentially along the column shaft tube 22 and are fixedly connected, and the shaft sleeve 23 is arranged It is placed above the column shaft tube 22 to provide a fixed space for the column shaft 24. The column shaft 24 is rotatably connected to the rotating device. A column base plate 20 is welded below the column shaft tube 22, and four column reinforcement ribs 21 are arranged around it. The column base plate 20 is provided with multiple connecting holes, which can be installed and fixed using positioning pins 8, first connecting screws 9 and blind plate seats 11. A column bottom rib 19 is also provided under the column base plate 20 to play a reinforcing role, so as to enhance the stability of the supporting column 7 when the blind plate cover 10 rotates.

[0041] It should be noted that, under the premise of ensuring the strength of the device, the column bottom ribs 19 and the column reinforcing ribs 21 may not be provided, and the number of the column reinforcing ribs 21 may also be appropriately changed, for example, using two or six.

[0042] In this embodiment, the rotating device includes a swivel arm 5, one end of which is sleeved on the column shaft 24 and fixedly connected to the swivel bearing through a swivel arm flange 15 to ensure that the swivel arm 5 can rotate around the column shaft 24, and the other end of the swivel arm 5 is connected to the lifting device 4. The swivel arm 5 includes a swivel arm flange 15, a swivel arm sleeve 16, a swivel arm cross plate 17 and a swivel arm vertical plate 18. The swivel arm cross plate 17 and the swivel arm vertical plate 18 are perpendicular to each other and fixedly connected. The swivel arm sleeve 16 is fixedly connected to the swivel arm cross plate 17 and the swivel arm vertical plate 18. The swivel arm flange 15 is arranged on the swivel arm sleeve 16. The lower bottom surface of the arm is fixedly connected, the arm sleeve 16 is used to be sleeved on the column shaft 24, and the end of the arm cross plate 17 away from the arm sleeve 16 is provided with a mounting hole 26 and a fixing hole 27, the mounting hole 26 is used to install the lifting and lowering device 4, and the fixing hole 27 is used for bolts to pass through to fix the lifting and lowering device 4 to the arm cross plate 17, the arm sleeve 16 is fixed to one side of the arm cross plate 17 by welding, and a arm flange 15 is fixed thereunder, and the arm flange 15 is provided with a plurality of connecting holes, which can be fixed to the rotating device by the second connecting screw 13.

[0043] In this embodiment, the vertical blind plate rotating lifting and lowering structure also includes a tapered roller bearing 12, which is arranged on the inner side of the swing arm sleeve 16, and the upper and lower ends of the inner wall of the swing arm sleeve 16 are arranged with tapered roller bearings 12, which are used to disperse the radial pressure generated on the swing arm sleeve 16 due to the rotation of the blind plate cover 10.

[0044] In this embodiment, the lifting and lowering device 4 includes a lifting and lowering screw 3, a second rotating device 25 and a turbine reducer. The second rotating device 25 is connected to a worm, which is connected to the turbine reducer. The turbine reducer includes a thrust bearing, a ball screw pair and a turbine. One end of the ball screw pair is connected to the thrust bearing, and the other end is connected to the turbine. One end of the lifting and lowering screw 3 passes through the thrust bearing, the ball screw pair, the turbine and the mounting hole 26 from top to bottom, and the other end is fixedly connected to the blind cover 10. The ball screw pair can convert spiral motion into linear motion, and can also convert linear motion into rotational motion, that is, the screw and the nut can both be used as active parts, and the self-locking of the lifting and lowering screw 3 can be achieved in combination with the thrust bearing, so that the blind cover 10 can be lifted to any height.

[0045] In this embodiment, the vertical blind plate rotating lifting and lowering structure also includes a guide card plate 1, one end of the guide card plate 1 is used to be fixedly connected to the blind plate cover 10, and the other end is provided with a guide hole, and the guide hole is used for the guide pin 2 on the blind plate seat 11 to pass through, so as to provide accurate positioning for the closing of the blind plate cover 10. The guide card plate 1 is a Z-shaped card plate, and the end connected to the blind plate cover 10 is lower than the end through which the guide pin 2 passes. When the blind plate is closed, the blind plate cover 10 needs to slowly drop into the groove on the upper part of the blind plate seat 11, and the blind plate The cover 10 is large in size and weight. Due to unstable center of gravity or improper operation, the axis of the blind cover 10 cannot be aligned with the axis of the blind seat 11 after it falls, affecting the sealing effect of the sealing ring. The use of the guide card plate 1 can make the blind cover 10 fall into place smoothly and accurately during the closing process of the blind cover 10. When the blind cover 10 falls, the guide hole of the guide card plate 1 can be sleeved on the guide pin 2 of the blind seat 11. At this time, the blind seat 11 and the blind cover 10 are in axial concentric position, and the blind cover 10 is closed.

[0046] It should be noted that both the first rotating device 6 and the second rotating device 25 are rotating hand wheels for easy operation.

[0047] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A vertical blind plate rotating take-off and landing structure, characterized in that: include: A support assembly, the support assembly is used to be fixed on the blind plate seat; A lifting and lowering device, the lifting and lowering device is used to control the rise and fall of the blind cover; A rotating device, one end of which is connected to the supporting assembly, and the other end of which is connected to the lifting and lowering device, wherein a transfer device is provided at the end of the rotating device connected to the supporting assembly, and the transfer device is used to drive the rotation of the rotating device and lock the rotating device after the rotating device rotates into place.

2. The vertical blind plate rotating lifting and lowering structure according to claim 1 is characterized in that: The transfer device includes a slewing bearing and an annular envelope worm, the slewing bearing is fixedly connected to the rotating device, one end of the annular envelope worm is meshed with the slewing bearing, and the other end is connected to a first rotating device, and the first rotating device is used to drive the annular envelope worm to rotate and then drive the slewing bearing to rotate, so as to control the rotation angle of the rotating device.

3. The vertical blind plate rotating lifting and lowering structure according to claim 2 is characterized in that: The support assembly includes a support column, the support column is connected to the flange of the blind plate seat through a first connecting screw, and the support column and the flange of the blind plate seat are also connected through a positioning pin.

4. The vertical blind plate rotating lifting and lowering structure according to claim 3 is characterized in that: The supporting column includes a column shaft, a shaft sleeve, a column shaft tube, and a column base plate. The column base plate is fixedly connected to the flange of the blind plate seat. The column shaft tube is fixedly connected to the column base plate and vertically arranged above the column base plate. A column bottom rib is fixedly arranged below the column base plate. A plurality of column reinforcement ribs are arranged above the column base plate. The plurality of column reinforcement ribs are arranged circumferentially along the column shaft tube and fixedly connected. The shaft sleeve is arranged above the column shaft tube to provide a fixed space for inserting the column shaft. The column shaft is rotatably connected to the rotating device.

5. The vertical blind plate rotating lifting and lowering structure according to claim 4 is characterized in that: The rotating device includes a rotating arm, one end of which is sleeved on the column shaft and fixedly connected to the slewing bearing through a rotating arm flange to ensure that the rotating arm can rotate around the column shaft, and the other end of the rotating arm is connected to the lifting and lowering device.

6. The vertical blind plate rotating lifting and lowering structure according to claim 5 is characterized in that: The swing arm includes a swing arm flange, a swing arm sleeve, a swing arm cross plate and a swing arm vertical plate. The swing arm cross plate and the swing arm vertical plate are perpendicular to each other and fixedly connected. The swing arm sleeve is fixedly connected to the swing arm cross plate and the swing arm vertical plate. The swing arm flange is arranged on the lower bottom surface of the swing arm sleeve and is fixedly connected. The swing arm sleeve is used to be sleeved on the column shaft. An installation hole and a fixing hole are formed at one end of the swing arm cross plate away from the swing arm sleeve. The installation hole is used to install the lifting and lowering device, and the fixing hole is used for bolts to pass through so as to fix the lifting and lowering device to the swing arm cross plate.

7. The vertical blind plate rotating lifting and lowering structure according to claim 6 is characterized in that: It also includes a tapered roller bearing, which is arranged on the inner side of the swing arm sleeve, and the tapered roller bearings are arranged on the upper end and the lower end of the inner wall of the swing arm sleeve.

8. The vertical blind plate rotating lifting and lowering structure according to claim 6 is characterized in that: The lifting and lowering device includes a lifting and lowering screw, a second rotating device and a turbine reducer, the second rotating device is connected to a worm, the worm is connected to the turbine reducer, the turbine reducer includes a thrust bearing, a ball screw pair and a turbine, one end of the ball screw pair is connected to the thrust bearing, and the other end is connected to the turbine, one end of the lifting and lowering screw passes through the thrust bearing, the ball screw pair, the turbine and the mounting hole from top to bottom in sequence, and the other end is fixedly connected to the blind plate cover.

9. The vertical blind plate rotating lifting and lowering structure according to claim 1 is characterized in that: It also includes a guide card, one end of which is used to be fixedly connected to the blind plate cover, and the other end is provided with a guide hole, and the guide hole is used for the guide pin on the blind plate seat to pass through, so as to provide accurate positioning for closing the blind plate cover.

10. The vertical blind plate rotating lifting and lowering structure according to claim 9 is characterized in that: The guide clamping plate is a Z-shaped clamping plate, and one end of the Z-shaped clamping plate connected to the blind plate cover is lower than the end through which the guide pin passes.

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