CN215803580U - Blocking device - Google Patents

Abstract

The present invention relates to a barrier device. The blocking device comprises a driving unit, a blocking unit, a connecting piece and a traction piece, wherein the blocking unit is rotatably arranged on the connecting piece, and the traction piece is connected with the blocking unit and the driving unit; the traction piece moves under the driving of the driving unit and drives the blocking unit to rotate from a blocking state to a releasing state. The blocking device provided by the utility model can block the transverse moving trolley when the elevator is not lifted in place and release the transverse moving trolley when the elevator is lifted in place, thereby eliminating the potential safety hazard that the transverse moving trolley is separated from the guide rail. The blocking device has the following advantages: the blocking state is switched to the releasing state quickly and conveniently, the power transmission efficiency is higher, the response of the blocking unit to the driving unit is more sensitive, the mechanism is easy to arrange, the cost is low, and the maintenance is easy.

Description

Blocking device

Technical Field

The utility model relates to the field of intelligent parking garages, in particular to a blocking device.

Background

Use the sideslip platform truck in a large number in present intelligent garage, the sideslip platform truck can transport the vehicle with the adjustment vehicle parking position with lift cooperation.

The following problems exist in the existing intelligent garage: when the program for controlling the movement of the traverse trolley runs abnormally and the guide rail of the traverse trolley is not engaged with the guide rail of the lifting mechanism, the traverse trolley is easy to derail, so that the risk that the traverse trolley falls from the high altitude can occur.

Therefore, how to realize reliable and efficient blocking of the traverse trolley when the elevator is not lifted in place, and release of the traverse trolley when the elevator is lifted in place, and meet the requirements of low cost and easiness in maintenance of coordinated operation of various mechanisms are important problems faced by the current intelligent garage.

SUMMERY OF THE UTILITY MODEL

Accordingly, there is a need for a blocking device.

The utility model provides a blocking device which comprises a driving unit, a blocking unit, a connecting piece and a traction piece, wherein the blocking unit is rotatably arranged on the connecting piece, and the traction piece is connected with the blocking unit and the driving unit; the traction piece moves under the driving of the driving unit and drives the blocking unit to rotate from a blocking state to a releasing state.

The blocking device provided by the utility model can block the transverse moving trolley when the elevator is not lifted in place and release the transverse moving trolley when the elevator is lifted in place, thereby eliminating the potential safety hazard that the transverse moving trolley is separated from the guide rail. The blocking device has the following advantages: the blocking state is switched to the releasing state quickly and conveniently, the power transmission efficiency is higher, the response of the blocking unit to the driving unit is more sensitive, the mechanism is easy to arrange, the cost is low, and the maintenance is easy.

In order to realize the switching of the linear motion of the driving device into the rotational motion of the arresting unit, in one embodiment of the utility model, the driving unit comprises a fixed part and a movable part, the movable part is movably mounted on the fixed part, one end of the traction element is connected with the fixed part, and the other end of the traction element is connected with the arresting unit; the movable piece is connected with the traction piece and used for driving the traction piece to move so as to change the relative position between the two ends of the traction piece.

According to the arrangement, the moving part drives the traction part to move, the relative position between the two ends of the traction part is changed, the blocking unit can be linked to move, the power transmission efficiency of the blocking device is improved, and the blocking unit responds to the action of the driving unit more sensitively and quickly, so that the efficiency of switching from the blocking state to the releasing state is improved.

In order to increase the degree of automation of the blocking device, in one embodiment of the utility model, the blocking device further comprises a control unit, the drive unit further comprising a drive source; the driving source is connected to the movable piece and is used for driving the movable piece to move; the control unit is coupled to the driving source and used for controlling the starting and stopping of the driving source.

So set up, among the blocking device can insert automated production control system, when blocking device detected sideslip platform truck guide rail and lift guide rail butt joint, can control the driving source operation, make the quick switch-over of arresting unit to the state of releasing, improved blocking device's response timeliness.

In order to improve the flexibility of the blocking device and prevent the pulling element from falling off, in an embodiment of the present invention, the driving unit further includes two first rollers, the moving element is provided with a first groove, and the two first rollers are mounted in the first groove; the traction piece passes between the two first rollers; when the movable piece moves forwards, one of the two first rollers drives the traction piece to pull the arresting unit forwards, so that the arresting unit rotates to the arresting state; or when the movable piece moves reversely, the other of the two first rollers drives the traction piece to reversely reset the blocking unit, so that the blocking unit rotates to the release state.

So set up, blocking device switches the in-process between blocking state and the clearance state, draws the piece along the outer peripheral face contact of first gyro wheel, and first gyro wheel can reduce the bending and the shear stress that draw the piece and receive, has also alleviateed the moving part and has drawn the wearing and tearing between the piece to still play the effect that the restriction moving part and the piece that draws break away from, improved blocking device's connection reliability.

In order to improve the reliability of the process of switching the blocking device into the release state, in one embodiment of the utility model, the blocking unit comprises a blocking piece rotatably mounted on the connecting piece, an outlet hole is formed in the blocking piece, an upset head is arranged on the traction piece, and the size of the upset head is larger than that of the outlet hole; the traction piece penetrates through the penetrating hole, and the heading can drive the blocking piece to rotate along with the movement of the traction piece.

So set up, blocking device switches the in-process between blocking state and the clearance state, draws the piece along the outer peripheral face contact of first gyro wheel, and first gyro wheel can reduce the bending and the shear stress that draw the piece and receive, has also alleviateed the moving part and has drawn the wearing and tearing between the piece to still play the effect that the restriction moving part and the piece that draws break away from, improved blocking device's connection reliability.

In order to reduce the wear of the traction member and the second roller and improve the efficiency and flexibility of state switching of the blocking device, in one embodiment of the utility model, the blocking device further comprises a second roller, the blocking member is provided with a mounting groove, the second roller is rotatably mounted in the mounting groove, and the traction member is in contact with the outer peripheral wall of the second roller.

So set up, the second gyro wheel has alleviateed and has pull the wearing and tearing between the piece and blockking to can improve the switching efficiency and the smoothness nature that block state and clearance state round trip switch.

In order to prolong the service life of the blocking member, in an embodiment of the utility model, the blocking unit further includes a blocking piece, the blocking piece is fixedly arranged at one end of the blocking member relatively far away from the connecting member, and the blocking piece is an elastic member.

So set up, block the extrusion force that the piece can cushion the sideslip platform truck, absorb the impact shock of sideslip platform truck, avoid sideslip platform truck and block that the unit rigidity collision leads to blockking that inside bending stress suddenly rises.

In order to reduce the difficulty of controlling the blocking device, in one embodiment of the utility model, the blocking unit rotates from the release state to the blocking state by its own weight.

So set up, blocking device has had automatic re-setting's function, need not external drive device, only can resume to the block state from the clearance state through the gravity of stopping the unit.

In order to prolong the service life of the traction member and reduce the use cost of the blocking device, in one embodiment of the utility model, the blocking device further comprises a tensioning assembly movably mounted to the drive unit and connected to the traction member, the tensioning assembly being capable of moving relative to the drive unit and adjusting the tensioning degree of the traction member.

By the arrangement, a user can compensate the gap at the joint of the traction piece and the driving unit and the free movement allowance of the traction piece caused by looseness by adjusting the tensioning assembly, so that the problems that the arresting unit acts slowly and cannot be fully released due to the fact that the arresting unit does not act in place can be solved, and the traction piece after tensioning adjustment can quickly reach a released state under the driving of the driving unit.

In order to improve the reliability of the tensioning assembly, in one embodiment of the utility model, the tensioning assembly comprises a tensioning member and an adjusting member, the tensioning member is in threaded fit with the tensioning member, the driving unit is provided with a through hole, the tensioning member is arranged in the through hole in a penetrating mode and is connected with the traction member, and the adjusting member abuts against one side, relatively far away from the blocking unit, of the driving unit; the tensioning member is axially movable relative to the drive unit by the adjustment member to vary the degree of tensioning of the traction member.

So set up, tensioning assembly's simple structure, easily acquire, arrange easily, the cooperation is reliable, and it is convenient to manipulate, even long-term use also can not become invalid.

Drawings

Fig. 1 is a schematic perspective view of a blocking device provided by the present invention in a blocking state;

FIG. 2 is a schematic view of the blocking device of FIG. 1 from a first perspective;

FIG. 3 is a schematic view of the blocking device of FIG. 1 from a second viewing angle;

FIG. 4 is a schematic view of the blocking device of FIG. 1 from a third perspective;

FIG. 5 is a view taken along the line A-A in FIG. 4;

fig. 6 is a schematic perspective view of a barrier device provided by the present invention in a released state;

fig. 7 is a schematic view of the blocking device of fig. 6 from a first viewing angle.

Description of reference numerals:

100. a blocking device; 10. a drive unit; 11. a fixing member; 12. a movable member; 121. a first groove; 13. a protective member; 20. a blocking unit; 21. a blocking member; 211. an outlet hole is formed; 212. mounting grooves; 22. a blocking block; 30. a connecting member; 31. a second groove; 40. a traction member; 41. heading; 51. a first roller; 52. a second roller; 53. a third roller; 54. a fourth roller; 60. a tension assembly; 61. a tensioning member; 62. an adjustment member; 70. a guide rail; 71. a rolling wheel; 72. a guide wheel.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly mounted on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

Use the sideslip platform truck in a large number in present intelligent garage, the sideslip platform truck can transport the vehicle with the adjustment vehicle parking position with lift cooperation.

The following problems exist in the existing intelligent garage: when the program for controlling the movement of the traverse carriage runs abnormally, and the guide rail of the traverse carriage is not engaged with the guide rail of the lifting mechanism, that is, the elevator is not lifted in place, the traverse carriage is easy to derail, so that the risk that the traverse carriage falls from the high altitude can occur.

When the elevator is not lifted in place, the transverse moving trolley is reliably and efficiently blocked, when the elevator is lifted in place, the transverse moving trolley is released, and meanwhile, the requirements of low cost and easiness in maintenance of coordinated operation of all mechanisms are met, so that the intelligent garage is an important problem faced by the current intelligent garage.

In view of this, the present invention provides a blocking device 100, and in a preferred embodiment of the present invention, the blocking device 100 is used to block the traverse carriage from moving when the elevator is not yet raised in place.

It is understood that in other embodiments, the blocking device 100 may be used in other applications, such as in an automated manufacturing line, a material distribution transfer line, or a storage warehouse.

Referring to fig. 1 to 7, fig. 1 is a schematic perspective view of a blocking device in a blocking state according to the present invention; FIG. 2 is a schematic view of the blocking device of FIG. 1 from a first perspective; FIG. 3 is a schematic view of the blocking device of FIG. 1 from a second viewing angle; FIG. 4 is a schematic view of the blocking device of FIG. 1 from a third perspective; FIG. 5 is a view taken along the line A-A in FIG. 4; fig. 6 is a schematic perspective view of a barrier device provided by the present invention in a released state; fig. 7 is a schematic view of the blocking device of fig. 6 from a first viewing angle.

The blocking device 100 provided by the present invention includes a driving unit 10, a blocking unit 20, a connecting member 30, and a drawing member 40. In this embodiment, the link member 30 is fixedly provided with respect to an elevator guide rail (not shown), the arresting unit 20 is rotatably mounted to the link member 30, and the traction member 40 has one end connected to the arresting unit 20 and the other end connected to the driving unit 10.

The blocking unit 20 has a blocking state and a releasing state. In the blocking state, the blocking unit 20 is located above the guide surface of the guide rail 70 of the traverse carriage, and at this time, the blocking unit 20 blocks the rolling wheels 71 of the traverse carriage from rolling along the guide rail 70; in the released state, the arresting unit 20 rotates through a preset angle with respect to the arresting state and away from the guide surface of the guide rail 70, at which time the arresting unit 20 gives way to the rolling wheel 71, allowing the rolling wheel 71 to continue rolling along the guide rail 70.

The blocking device 100 is capable of detecting a relative position between a guide rail of the traverse carriage and an elevator guide rail (not shown). When the guide rail surfaces of the two are butted, that is, the elevator is lifted to a proper position, the driving unit 10 can operate to drive the traction member 40 to move, at this time, the traction member 40 generates tension deformation and applies traction force to the arresting unit 20, so that the arresting unit 20 is driven to rotate by a preset angle from the arresting state and then is switched to the releasing state.

The blocking device 100 provided by the utility model can block the traverse trolley when the elevator is not lifted in place and release the traverse trolley when the elevator is lifted in place, thereby eliminating the potential safety hazard that the traverse trolley is separated from the guide rail 70.

In addition, the driving unit 10 applies force to the traction member 40, the relative position between one end of the traction member 40 connected with the blocking unit 20 and one end of the traction member 40 connected with the driving unit 10 is changed, the displacement of one end of the traction member 40 connected with the blocking unit 20 is matched with the rotation angle of the blocking unit 20 relative to the connecting piece 30, and the switching from the blocking state to the releasing state can be realized more accurately and quickly.

The blocking device 100 of the utility model therefore has the following advantages: the action switching from the blocking state to the releasing state is rapid and convenient, the power transmission efficiency is higher, the response of the blocking unit 20 to the driving unit 10 is more sensitive, the mechanism arrangement is easy, the cost is low, and the maintenance is easy.

Preferably, the pulling member 40 is a steel cable. The bending resistance and tensile strength of the steel wire rope are excellent, the service life is longer, and the safety of the blocking device 100 can be guaranteed. It is understood that in other embodiments, the traction element 40 may take on other configurations.

Further, the blocking device 100 further includes a detection device and a control unit (not shown), and the driving unit 10 further includes a driving source (not shown); the driving source is connected with the movable piece 12 and is used for driving the movable piece 12 to move; the control unit is coupled to the driving source.

The detection means is used to detect the abutment of the elevator guide rail and the traverse carriage guide rail 70 and the position of the blocking unit 20, and the control unit can be used to control the start and stop of the driving source.

When the detection device detects that the elevator guide rail and the traverse trolley guide rail 70 are reliably butted, the detection device sends an elevator in-place signal to the control unit, and the control unit further sends a running starting signal to the driving source; when the detecting device detects that the blocking unit 20 has rotated by the preset angle, the blocking unit 20 is in the release state, and at this time, the detecting device sends a signal indicating that the blocking unit 20 is in place to the control unit, and the control unit further sends a signal indicating that the driving source stops operating to the driving source, so that the driving source completes a driving process from the blocking state to the release state.

With such an arrangement, the blocking device 100 can be connected to an automatic production control system, and when the blocking device 100 detects that the traverser trolley guide rail 70 is in butt joint with the elevator guide rail, the driving source can be controlled to operate, so that the blocking unit 20 is rapidly switched to a release state, and the response timeliness of the blocking device 100 is improved.

In this embodiment, the driving unit 10 includes a fixed member 11 and a movable member 12, the movable member 12 is movably mounted on the fixed member 11, one end of the pulling member 40 is connected to the fixed member 11, and the other end is connected to the arresting unit 20. The movable member 12 is connected to the traction member 40 for moving the traction member 40.

In the present embodiment, the movable element 12 is disposed through the fixed element 11 and can move relative to the fixed element 11 along the axial direction, and the end of the movable element 12 extending out of the fixed element 11 abuts against the pulling element 40, so as to apply a thrust force along the radial direction to the side of the pulling element 40, thereby changing the relative position between the end of the pulling element 40 connected to the arresting unit 20 and the end thereof connected to the fixed element 11.

Preferably, the fixed member 11 is provided with a first alignment hole and a second alignment hole which are oppositely arranged, the traction member 40 is sequentially connected with the first alignment hole and the second alignment hole, and the traction member 40 part between the first alignment hole and the second alignment hole is displaced to be vertical to the movable member 12.

With such an arrangement, the movable member 12 can more stably abut against the traction member 40, thereby preventing the sliding between the movable member 12 and the traction member 40, and further preventing the movable member 12 from applying force to the traction member 40.

In addition, the driving unit 10 further includes a protection member 13, the protection member 13 having a hollow sleeve hole and being configured to sleeve a portion of the movable member 12 relatively far from the traction member 40 through the sleeve hole, the protection member 13 being capable of preventing an external object from interfering with the movable member 12 when the movable member 12 is axially displaced and of calibrating a moving direction of the movable member 12 so that it can be accurately displaced in the axial direction.

Further, the driving unit 10 further includes two first rollers 51, a first groove 121 is formed at one end of the movable member 12 relatively close to the traction member 40, and both the two first rollers 51 are installed in the first groove 121; the traction element 40 passes between the two first rollers 51.

In the embodiment, the rotation centers of the two first rollers 51 are perpendicular to the axis of the movable member 12, and when the movable member 12 moves forward, one of the two first rollers 51 drives the traction member 40 to pull the arresting unit 20 forward to rotate, so that the arresting unit 20 blocks the state when rotating.

Taking fig. 3, 4 and 6 as an example, the moving member 12 moving in the forward direction means that the moving member 12 moves axially relative to the fixed member 11 in the rightward direction in fig. 4, and the traction member 40 pulling the arresting unit 20 in the forward direction means that the end of the traction member 40 connected to the arresting unit 20 moves in the downward direction in fig. 4, thereby rotating the arresting unit 20 in the counterclockwise direction in fig. 3 and away from the guide rail 70 of the traverser until the arresting unit 20 rotates to the state shown in fig. 6.

When the movable member 12 moves in the reverse direction, the other of the two first rollers 51 drives the traction member 40 to reset the arresting unit 20 in the reverse direction, so that the arresting unit 20 rotates to the release state.

Taking fig. 3, 6 and 7 as an example, the reverse movement of the movable member 12 means that the movable member 12 axially moves relative to the fixed member 11 in the leftward direction as viewed in fig. 7, and the reverse resetting of the arresting unit 20 by the traction member 40 means that the end of the traction member 40 connected to the arresting unit 20 moves in the upward direction as viewed in fig. 7, and the arresting unit 20 rotates in the clockwise direction as viewed in fig. 6 and approaches the guide rail 70 of the traverser until the arresting unit 20 rotates to the state shown in fig. 3.

With such an arrangement, in the process of switching the blocking device 100 between the blocking state and the releasing state, the traction element 40 contacts along the outer peripheral surface of the first roller 51, the first roller 51 can reduce the bending and shearing stress applied to the traction element 40, the abrasion between the movable element 12 and the traction element 40 is also reduced, the function of limiting the separation of the movable element 12 and the traction element 40 is also achieved, and the connection reliability of the blocking device 100 is improved.

Preferably, the moveable member 12 is a cylindrical shaft. With such an arrangement, the movable member 12 is more convenient to machine and has a lower cost, and the peripheral surface is a curved surface and has a long service life.

In other embodiments, two first rollers 51 may not be provided, or only one first roller 51 may be provided. In embodiments where the first roller 51 is not provided, one end of the moveable member 12 may be perforated and the traction element 40 may be perforated. Of course, the connection mode between the moving member 12 and the traction member 40 is not limited herein, and it only needs to satisfy that the moving member 12 drives the traction member 40, applies force to the arresting unit 20, drives the arresting unit 20 to rotate, and realizes the switching between the blocking state and the releasing state.

In this embodiment, the arresting unit 20 includes an arresting member 21 rotatably mounted on the connecting member 30, an outlet hole 211 is formed on the arresting member 21, and an upset 41 is disposed on the towing member 40, wherein the size of the upset 41 is larger than that of the outlet hole 211. The pulling member 40 is disposed through the through hole 211, and the upset head 41 can drive the blocking member 21 to rotate along with the movement of the pulling member 40.

Further, the blocking device 100 further includes a second roller 52, the blocking member 21 is provided with a mounting groove 212, the second roller 52 is rotatably mounted in the mounting groove 212, and the traction member 40 contacts with the outer peripheral wall of the second roller 52.

The provision of the second roller 52 reduces wear between the traction member 40 and the blocking member 21, and can improve the switching efficiency and smoothness of the switching between the blocking state and the release state.

Further, the blocking device 100 is further provided with a third roller 53 and a fourth roller 54, the third roller 53 being disposed at an end of the connecting member 30 relatively close to the driving unit 10, and the fourth roller 54 being disposed at an end of the fixing member 11 relatively close to the connecting member 30.

With such an arrangement, the degree of wear between the traction member 40 and the connecting member 30, and between the traction member 40 and the fixing member 11, is alleviated, and the switching efficiency and the smoothness of the back-and-forth switching between the blocking state and the releasing state are also improved.

Further, the connecting member 30 is provided with a second groove 31, and one end of the blocking member 21, on which the second roller 52 is mounted, is located in the second groove 31 and is rotatably connected to the connecting member 30. The inner wall of the second groove 31 may limit the axial displacement of the blocking member 21 along the rotational center thereof, and the second groove 31 may also protect the second roller 52 from external objects.

Further, the blocking unit 20 further includes a blocking piece 22, the blocking piece 22 is fixedly disposed at an end of the blocking piece 21 relatively far away from the connecting member 30, and the blocking piece 22 is an elastic member.

With such an arrangement, the blocking block 22 can buffer the extrusion force of the traverse trolley, absorb the impact shock of the traverse trolley, and avoid the sudden rise of the bending stress inside the blocking member 21 caused by the rigid collision between the traverse trolley and the blocking unit 20. Preferably, the stop block 22 is a rubber member.

In the present embodiment, the arresting unit 20 rotates from the released state to the blocked state by its own weight.

Specifically, in the present embodiment, when the selected horizontal plane is the projection plane, the projection of the barycentric position of the barrier unit 20 in the release state and the projection of the barycentric position of the barrier unit 20 in the barrier state are both located on the same side of the projection of the rotation axis between the barrier unit 20 and the link 30 on the same horizontal plane.

That is, in the horizontal direction, the position of the center of gravity of the arresting unit 20 has a horizontal offset to the axis of rotation between the arresting unit 20 and the connecting member 30.

The movement process of the blocking device 100 is as follows: when the guide rail 70 of the lifting mechanism is not yet reliably abutted with the guide rail 70 of the traverse trolley, the blocking member 21 is always attached to and in a blocking state with the guide rail 70 of the traverse trolley, so that the rolling wheels 71 of the traverse trolley are prevented from passing through the blocking device 100 — when the detection device recognizes that the guide rail of the lifting mechanism is reliably abutted with the guide rail 70 of the traverse trolley, the driving source drives the movable member 12 to displace in the axial direction, and applies a transverse thrust to the traction member 40 by abutting against the traction member 40.

Since the length of the towing member 40 itself does not change, the towing member 40 drives the arresting unit 20 to rotate by a preset angle against its own weight, thereby switching to a release state until the driving source stops operating.

When the lifting mechanism needs to drive the traverse trolley to change the layer, the arresting unit 20 reversely drives the traction member 40 to move under the action of the gravity of the arresting unit 20, at this time, the gravity center position of the arresting unit 20 is lowered, and the gravitational potential energy of the arresting unit is enough to overcome the transverse thrust of the movable member 12 on the traction member 40, so that one end of the traction member 40 connected with the blocking member 21 is raised in the vertical direction, and meanwhile, the axial thrust is applied to the movable member 12, so that the movable member 12 moves in the left direction shown in fig. 7 until the arresting unit 20 returns to the blocking state again.

With this arrangement, the barrier device 100 has an automatic reset function, and can be restored from the released state to the barrier state only by the gravity of the barrier unit 20 without an external driving device.

In this embodiment, the blocking device 100 further includes a tensioning assembly 60, the tensioning assembly 60 is movably mounted on a side of the driving unit 10 opposite to the arresting unit 20 and is connected to an end of the traction member 40 opposite to the arresting unit 20, and the tensioning assembly 60 is used for tensioning the traction member 40, and can move relative to the driving unit 10 and eliminate a gap between the traction member 40 and the movable member 12 and a free movement margin after the traction member 40 is loosened.

After the blocking device 100 works for a period of time, the pulling member 40 is inevitably elastically deformed, the length of the pulling member 40 is increased after the elastic deformation, and the increase of the length of the pulling member 40 delays the action switching of the blocking unit 20, thereby affecting the rapid switching of the blocking device 100 to the release state; in addition, the increased length of the towing member 40 after being loosened may prevent the arresting unit 20 from reaching a predetermined release position. The above problem can be solved by providing the tension assembly 60.

Further, the tensioning assembly 60 comprises a tensioning member 61 and an adjusting member 62 which are matched with each other through threads, a through hole is formed in the fixing member 11, the tensioning member 61 penetrates through the through hole and is connected with one end of the traction member 40, which is relatively far away from the blocking unit 20, and the adjusting member 62 abuts against one side of the fixing member 11, which is relatively far away from the blocking unit 20; the tensioning member 61 can be moved axially relative to the fixed member 11 by the adjustment member 62 to vary the degree of tensioning of the traction member 40.

Preferably, the tensioning member 61 is a stud and the adjustment member 62 is a nut.

The blocking device 100 provided by the utility model can block the traverse trolley when the elevator is not lifted in place and release the traverse trolley when the elevator is lifted in place, thereby eliminating the potential safety hazard that the traverse trolley is separated from the guide rail 70. The blocking device 100 has the following advantages: the action switching from the blocking state to the releasing state is rapid and convenient, the power transmission efficiency is higher, the response of the blocking unit 20 to the driving unit 10 is more sensitive, the mechanism arrangement is easy, the cost is low, and the maintenance is easy.

The features of the above-described embodiments may be arbitrarily combined, and for the sake of brevity, all possible combinations of the features in the above-described embodiments are not described, but should be construed as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the features.

It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that suitable changes and modifications of the above embodiments are within the scope of the claimed invention as long as they are within the spirit and scope of the present invention.

Claims (10)

1. A barrier device, comprising a drive unit (10), a barrier unit (20), a connecting member (30) and a pulling member (40), wherein the barrier unit (20) is rotatably mounted to the connecting member (30), and the pulling member (40) connects the barrier unit (20) with the drive unit (10);

the traction piece (40) moves under the driving of the driving unit (10) and drives the blocking unit (20) to rotate from a blocking state to a releasing state.

2. Blocking device according to claim 1, wherein the drive unit (10) comprises a fixed part (11) and a movable part (12), the movable part (12) being movably mounted to the fixed part (11), the pulling element (40) being connected at one end to the fixed part (11) and at the other end to the arresting unit (20);

the movable piece (12) is connected with the traction piece (40) and used for driving the traction piece (40) to move so as to change the relative position between the two ends of the traction piece (40).

3. A blocking device according to claim 2, characterized in that the blocking device further comprises a control unit, the drive unit (10) further comprising a drive source; the driving source is connected to the movable piece (12) and is used for driving the movable piece (12) to move; the control unit is coupled to the driving source and used for controlling the starting and stopping of the driving source.

4. The blocking device according to claim 2, wherein the driving unit (10) further comprises two first rollers (51), the movable member (12) defines a first groove (121), and the two first rollers (51) are mounted in the first groove (121); the traction member (40) passes between the two first rollers (51);

when the movable piece (12) moves forwards, one of the two first rollers (51) of the movable piece (12) drives the traction piece (40) to pull the arresting unit (20) to rotate forwards, so that the arresting unit (20) rotates to the arresting state; alternatively, the first and second electrodes may be,

when the movable piece (12) moves reversely, the other of the two first rollers (51) drives the traction piece (40) to reversely reset the arresting unit (20), so that the arresting unit (20) rotates to the releasing state.

5. The blocking device according to claim 1, characterized in that the blocking unit (20) comprises a blocking member (21) rotatably mounted on the connecting member (30), the blocking member (21) is provided with an exit hole (211), the pulling member (40) is provided with an upset head (41), and the size of the upset head (41) is larger than that of the exit hole (211);

the pulling piece (40) penetrates through the penetrating hole (211), and the upset head (41) can move along with the pulling piece (40) to drive the blocking piece (21) to rotate.

6. The blocking device according to claim 5, characterized in that the blocking device further comprises a second roller (52), the blocking member (21) is provided with a mounting groove (212), the second roller (52) is rotatably mounted in the mounting groove (212), and the traction member (40) is in contact with the outer peripheral wall of the second roller (52).

7. A blocking device according to claim 5, characterized in that the blocking unit (20) further comprises a blocking piece (22), the blocking piece (22) is fixedly arranged at one end of the blocking piece (21) relatively far away from the connecting piece (30), and the blocking piece (22) is an elastic piece.

8. Blocking device according to claim 1, wherein the blocking unit (20) is rotated by its own weight from the relaxed state to the blocking state.

9. Blocking device according to claim 1, characterized in that it further comprises a tensioning assembly (60), said tensioning assembly (60) being movably mounted to said drive unit (10) and being connected to said traction member (40), said tensioning assembly (60) being movable relative to said drive unit (10) and adjusting the degree of tensioning of said traction member (40).

10. The blocking device according to claim 9, wherein the tensioning assembly (60) comprises a tensioning member (61) and an adjusting member (62) which are in threaded engagement, a through hole is formed in the driving unit (10), the tensioning member (61) penetrates through the through hole and is connected with the traction member (40), and the adjusting member (62) abuts against a side of the driving unit (10) which is relatively far away from the blocking unit (20);

the tensioning element (61) can be moved axially relative to the drive unit (10) by means of the adjusting element (62) in order to vary the degree of tensioning of the traction element (40).

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