A spacing adjustment device for elevator guide rail bracket

Abstract

The present invention relates to the technical field of elevator guide rail brackets, and discloses a spacing adjustment device for elevator guide rail brackets, comprising two fixed brackets, which are arranged opposite to each other; two fixed plates, which are respectively fixed on the two fixed brackets; two guide rail clamps; a first adjustment structure, which is arranged between the two fixed plates, and is used to adjust the distance between the two guide rail clamps; and a second adjustment structure, which is arranged between the two fixed plates, and is used to adjust the distance between the two guide rail clamps and the elevator shaft wall. The present invention allows staff to flexibly adjust the distance between the guide rail clamp and the elevator shaft wall, as well as the relative distance between the two guide rail clamps according to the specific installation environment and elevator operation requirements. This high flexibility ensures the accuracy and adaptability of the guide rail installation and meets the requirements of different elevator shafts and operating conditions.

Description

Technical Field

[0001] The present invention relates to the technical field of elevator guide rail brackets, and in particular to a spacing adjustment device for elevator guide rail brackets. Background Art

[0002] Elevator guide rail brackets are a vital component of the elevator system. They are mainly used to support and fix the guide rails to ensure that the elevator car and counterweight device can run smoothly along the predetermined track. The spacing adjustment of the elevator guide rail brackets is an important part of the elevator installation and maintenance, which is directly related to the safety and stability of the elevator operation.

[0003] After searching, the Chinese patent with announcement number CN218024835U discloses a common adjustable guide rail bracket for elevators. The common guide rail bracket of the elevator is arranged on the wall on one side of the elevator shaft, and multiple groups are arranged in the vertical direction of the shaft. The common guide rail bracket encloses a frame structure that accommodates the cross-sectional space of the counterweight frame. The counterweight frame moves up and down in the frame structure as a whole. A counterweight guide rail is fixedly arranged on the inner side of the common guide rail bracket, and the counterweight frame is slidably arranged on the counterweight guide rail. A car guide rail fixing position is arranged on the outer side of the common guide rail bracket and a car guide rail on one side is fixed thereto. The car guide rail on the other side is fixedly arranged on the opposite shaft wall. The car frame and the car guide rails on both sides are slidably arranged. The common guide rail bracket is a rigid structure as a whole, and the counterweight guide rail and the car guide rail are connected and fixed at the same time. The above scheme can effectively improve the fixing quality of the elevator guide rail and save the elevator shaft space. However, the above scheme still has the following shortcomings when it is actually used:

[0004] In the above scheme, the guide rail bracket is composed of a fixed part and an adjustable part. The fixed part is fixed in the elevator shaft, and the adjustable part is connected to the fixed part by screws. The staff can adjust the position of the adjustable part by screws, so as to achieve the purpose of adjusting the distance between the guide rail and the elevator shaft wall. For this adjustment method, since the fixed part is fixed on the elevator shaft wall, the staff can only adjust the position of the guide rail in the direction perpendicular to the elevator shaft wall, but cannot adjust the position of the guide rail in the direction parallel to the elevator shaft wall. In the direction parallel to the elevator shaft wall, the staff can only mark the installation position of the fixed part in advance. If there is an installation error, the staff needs to re-drill holes in the shaft wall to install the fixed part, which is inconvenient to operate. In addition, this adjustment method requires the staff to adjust each guide rail one by one, and cannot handle adjacent guide rails at the same time. In large elevator systems or installation scenarios with high precision requirements, this one-by-one adjustment method will significantly reduce work efficiency and increase the installation cycle.

[0005] Therefore, it is necessary to design a spacing adjustment device for elevator guide rail brackets to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a spacing adjustment device for elevator guide rail brackets.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A spacing adjustment device for an elevator guide rail bracket, comprising:

[0009] Two fixed brackets are arranged opposite to each other;

[0010] Two fixing plates, respectively fixed on the two fixing brackets;

[0011] two rail clamps;

[0012] A first adjustment structure, disposed between the two fixing plates, for adjusting the distance between the two guide rail clamps;

[0013] A second adjustment structure, disposed between the two fixing plates, for adjusting the distance between the two guide rail clamps and the elevator shaft wall;

[0014] The first adjustment structure comprises:

[0015] A first screw rod is rotatably mounted between the two fixing plates;

[0016] A first guide rod, fixed between the two fixing plates;

[0017] Two movable seats are both threadedly sleeved on the first screw rod, and each of the movable seats is slidably sleeved on the first guide rod;

[0018] Two openings are respectively opened on the two movable seats;

[0019] The two connecting posts are respectively slid in the two through openings, and one end of the two connecting posts is respectively fixedly connected to the two guide rail clamps.

[0020] As a preferred technical solution of the present invention, the first screw rod is provided with two threaded sections with the same length and opposite directions, and the two movable seats are respectively threadedly sleeved on the two threaded sections.

[0021] As a preferred technical solution of the present invention, the second regulating structure includes:

[0022] A transverse plate, fixed between the two fixed plates;

[0023] A second screw rod passes through the transverse plate and is threadedly sleeved with the transverse plate;

[0024] A second guide rod, fixed on the side of the horizontal plate;

[0025] An adjusting plate, one end of which is rotatably connected to the second screw rod, and the other end of which passes through the second guide rod and is slidably connected to the second guide rod;

[0026] A slideway is provided on the adjusting plate and is arranged along the length direction of the adjusting plate;

[0027] Two connecting rods, one end of which is fixed on the two connecting columns respectively, and the other end of which passes through the slideway;

[0028] There are four collars, each two of which form a group, and the two groups of collars are respectively fixedly sleeved on two connecting rods, and the two collars located on the same connecting rod are respectively located on both sides of the adjustment plate.

[0029] As a preferred technical solution of the present invention, a mounting plate is fixed to the top surface of the two movable seats, and the mounting plate is an L-shaped structure. An execution structure and a vibration conduction structure are provided on each movable seat, and an early warning structure, a position feedback structure and a trigger structure are provided on each mounting plate.

[0030] As a preferred technical solution of the present invention, the execution structure includes:

[0031] A shaft rod, fixed on the top surface of the movable seat;

[0032] A sleeve, rotatably sleeved on the shaft;

[0033] A vibration plate, one end of which is fixedly connected to the outer peripheral surface of the sleeve;

[0034] A connecting frame, fixed to the other end of the vibration plate and having a U-shaped structure;

[0035] A feedback plate has one end fixedly connected to the outer peripheral surface of the sleeve, and the feedback plate and the vibration plate are located on the same straight line.

[0036] As a preferred technical solution of the present invention, the vibration conduction structure includes:

[0037] An insert plate, one end of which extends into the connecting frame;

[0038] The mounting block is fixed to the other end of the plug board, and at least four mounting holes are formed on the mounting block.

[0039] As a preferred technical solution of the present invention, the early warning structure includes:

[0040] A box body is fixed to the side of the mounting plate through a cross bar, and a through hole is formed at one end of the box body;

[0041] An opening is provided on the top surface of the box body;

[0042] An automatic alarm, mounted on the top surface of the box body;

[0043] The contact switch is fixed inside the box body and is electrically connected to the automatic alarm.

[0044] As a preferred technical solution of the present invention, the position feedback structure includes:

[0045] A slider slides in the box body and is arranged opposite to the contact switch;

[0046] A reflective sheet fixed on the top surface of the slider;

[0047] A limiting opening is provided on the side of the box body and is arranged along the length direction of the box body;

[0048] A limit block, fixed on the side of the slider and sliding in the limit opening;

[0049] A side plate fixed to the side of the box body;

[0050] A tension spring, one end of which is connected to an end of the side plate away from the box body, and the other end of which is connected to the limit block.

[0051] As a preferred technical solution of the present invention, the trigger structure includes:

[0052] A connecting rope, one end of which is fixed on the slider and the other end of which passes through the through hole and extends to the outside of the box body;

[0053] A connecting ring, fixed to one end of the connecting rope located outside the box body;

[0054] An outer cylinder is fixed to the side of the mounting plate and has an open end;

[0055] An inner rod is slidably disposed in the outer tube, one end of the inner rod extends to the outside of the outer tube and is inserted into the connecting ring;

[0056] A spring has one end connected to the outer cylinder and the other end connected to the inner rod.

[0057] As a preferred technical solution of the present invention, the end of the feedback plate away from the sleeve is arranged opposite to the inner rod.

[0058] The present invention has the following beneficial effects:

[0059] 1. The device allows the staff to flexibly adjust the distance between the guide rail clamp and the elevator shaft wall, as well as the relative distance between the two guide rail clamps, according to the specific installation environment and elevator operation requirements. This high degree of flexibility ensures the accuracy and adaptability of the guide rail installation, and meets the needs of different elevator shafts and operating conditions. By supporting the simultaneous adjustment of the positions of the two guide rail clamps, the tedious process of adjusting one by one is avoided, and the efficiency of the installation operation is significantly improved. The staff can complete the installation and adjustment of the guide rails more quickly, shortening the construction period. In addition, since the two guide rail clamps can be adjusted at the same time, the cumulative error that may be caused by adjusting one by one is reduced, ensuring the accuracy and consistency of the guide rail installation. At the same time, it also avoids the labor of repeatedly adjusting the same guide rail clamp or correcting the position multiple times, reducing the work intensity and error rate;

[0060] 2. The device can monitor the vibration of the guide rail in real time. Once the guide rail vibrates abnormally due to looseness or other reasons, the alarm mechanism will be triggered immediately. When the guide rail is detected to be loose, the device will automatically activate the alarm and send an alarm signal to the maintenance personnel. This remote notification function ensures that even in unattended situations, potential safety hazards can be responded to and handled quickly. The early warning device can sound an alarm at the early stage of guide rail loosening, allowing staff to intervene in time to effectively prevent the occurrence of safety accidents;

[0061] 3. When the guide rail is loose, the automatically triggered mechanism moves the reflector to the position facing the opening. This timely and intuitive visual feedback enables the staff to quickly identify and locate the specific loose position without having to check each fixing point one by one, greatly improving work efficiency.

[0062] 4. Through the angle amplification mechanism, even if the guide rail produces a slight vibration, it can be effectively amplified and transmitted to the feedback board, thereby triggering the alarm system. This high sensitivity ensures that the early warning system can respond to the looseness of the guide rail in a timely manner to avoid missing any potential safety hazards. Due to the existence of the angle amplification mechanism, even if the vibration signal is attenuated during the transmission process, it can maintain sufficient intensity to trigger the alarm through the amplification effect, which enhances the reliability of the early warning system and reduces the risk of false alarms and missed alarms. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] Figure 1 A schematic structural diagram of a spacing adjustment device for an elevator guide rail bracket proposed by the present invention;

[0064] Figure 2 A schematic structural diagram of another perspective of a spacing adjustment device for an elevator guide rail bracket proposed by the present invention;

[0065] Figure 3 A schematic structural diagram of another perspective of a spacing adjustment device for an elevator guide rail bracket proposed by the present invention;

[0066] Figure 4 It is a structural schematic diagram of the moving seat, the guide rail clamp and the mounting plate;

[0067] Figure 5 It is the position change state diagram of the feedback plate;

[0068] Figure 6 is a schematic diagram of the trigger structure;

[0069] Figure 7 It is a structural diagram of the early warning structure and the position feedback structure;

[0070] Figure 8 for Figure 2 A magnified view of the structure at A;

[0071] Fig. 9 for Figure 4 A magnified view of the structure at C;

[0072] Fig.10 for Figure 2 Enlarged view of the structure at B.

[0073] In the figure: 1. fixed bracket; 2. fixed plate; 3. guide rail clamp; 41. first screw rod; 42. first guide rod; 43. movable seat; 44. through port; 45. connecting column; 51. cross plate; 52. second screw rod; 53. second guide rod; 54. adjusting plate; 55. slideway; 56. connecting rod; 57. collar; 6. mounting plate; 70. shaft rod; 71. sleeve; 72. vibration plate; 73. connecting frame; 74. feedback plate; 81. plug plate; 82. mounting block; 91. box body; 92. opening; 93. automatic alarm; 94. contact switch; 101. slider; 102. reflector; 103. limit port; 104. limit block; 105. side plate; 106. tension spring; 111. connecting rope; 112. connecting ring; 113. outer cylinder; 114. inner rod; 115. spring. DETAILED DESCRIPTION

[0074] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0075] Reference Figure 1-10 , a spacing adjustment device for elevator guide rail brackets, comprising two fixed brackets 1, which are arranged opposite to each other; two fixed plates 2, which are respectively fixed on the two fixed brackets 1; and two guide rail clamps 3;

[0076] The spacing adjustment device of the guide rail bracket also includes a first adjustment structure, which is arranged between the two fixed plates 2 and is used to adjust the distance between the two guide rail clamps 3. The first adjustment structure includes: a first screw rod 41, which is rotatably installed between the two fixed plates 2; a first guide rod 42, which is fixed between the two fixed plates 2; two moving seats 43, which are both threadedly sleeved on the first screw rod 41, and each moving seat 43 is slidably sleeved on the first guide rod 42. The first screw rod 41 is provided with two threaded sections of the same length and opposite directions, and the two moving seats 43 are respectively threadedly sleeved on the two threaded sections; two through openings 44 are respectively opened on the two moving seats 43 (such as Figure 4 As shown); two connecting columns 45 slide in the two through openings 44 respectively, and one end of the two connecting columns 45 is fixedly connected to the two guide rail clamps 3 respectively. Since the first screw rod 41 is provided with two threaded sections of the same length and in opposite directions, under the limiting action of the first guide rod 42, the first screw rod 41 can drive the two moving seats 43 to approach or move away from each other when rotating, and the moving seat 43 can drive the guide rail clamp 3 to move through the connecting column 45 when moving. Therefore, the staff can adjust the distance between the two guide rail clamps 3 by rotating the first screw rod 41;

[0077] The guide rail bracket spacing adjustment device also includes a second adjustment structure, which is arranged between the two fixing plates 2 and is used to adjust the distance between the two guide rail clamps 3 and the elevator shaft wall. The second adjustment structure includes: a transverse plate 51, which is fixed between the two fixing plates 2; a second screw rod 52, which passes through the transverse plate 51 and is threadedly sleeved with the transverse plate 51; a second guide rod 53 (such as Fig.10 As shown), fixed on the side of the horizontal plate 51; an adjusting plate 54, one end of which is rotatably connected to the second screw rod 52, and the other end of which passes through the second guide rod 53 and is slidably connected to the second guide rod 53; a slideway 55, which is provided on the adjusting plate 54 and arranged along the length direction of the adjusting plate 54; two connecting rods 56, one end of which is respectively fixed to the two connecting columns 45, and the other end of which passes through the slideway 55; four collars 57, each two collars 57 form a group, and the two groups of collars 57 are respectively fixedly sleeved on the two connecting rods 56, and are located on the same connecting rod 56 The two collars 57 are respectively located on both sides of the adjustment plate 54. When the second screw 52 is rotated, it can move and drive the adjustment plate 54 to move. During the movement of the adjustment plate 54, the second guide rod 53 plays a role of limiting and guiding the movement of the adjustment plate 54. When the adjustment plate 54 moves, it can drive the connecting rod 56 to move through the two collars 57, so that the connecting rod 56 drives the connecting column 45 to move. When the connecting column 45 moves, the guide rail clamp 3 at its end position will also move accordingly. Therefore, the staff can adjust the distance between the guide rail clamp 3 and the elevator shaft wall by rotating the second screw 52;

[0078] The top surfaces of the two moving seats 43 are fixed with mounting plates 6, and the mounting plates 6 are L-shaped structures. Each moving seat 43 is provided with an execution structure and a vibration conduction structure, and the execution structure includes: a shaft 70, fixed on the top surface of the moving seat 43; a sleeve 71, rotatably sleeved on the shaft 70; a vibration plate 72, one end of which is fixedly connected to the outer circumference of the sleeve 71; a connecting frame 73, fixed to the other end of the vibration plate 72, and having a U-shaped structure; a feedback plate 74, one end of which is fixedly connected to the outer circumference of the sleeve 71, and the feedback plate 74 and the vibration plate 72 are located on the same straight line. The vibration conduction structure includes: a plug The plate 81 has one end extending into the connecting frame 73; the mounting block 82 is fixed to the other end of the plug plate 81. The mounting block 82 is provided with at least four mounting holes. The setting of the mounting holes facilitates the staff to fix the mounting block 82 on the elevator guide rail. It can be installed by drilling holes on the guide rail and using screws. This is a prior art and will not be described in detail here. The shaft 70, the sleeve 71, the vibration plate 72, the connecting frame 73 and the feedback plate 74 together form an angle amplification mechanism based on the lever principle. In this mechanism, the vibration plate 72 is used as an input lever for receiving vibration, and the feedback plate 74 is used as an output lever. , used for feedback vibration, the length of the output lever is longer than the input lever, when the input lever rotates a certain angle, the output lever will also rotate, but the rotation angle of the output lever will be much larger than the rotation angle of the input lever, thereby realizing the angle amplification. This angle amplification mechanism can amplify the vibration generated when the guide rail is loose. Through this mechanism, when the elevator guide rail is loose, the execution structure and the vibration transmission structure can operate in time. It is worth mentioning that when the guide rail is normal and not loose, the guide rail will still vibrate slightly when the elevator runs up and down through the guide rail bracket. When the guide rail vibrates slightly When the guide rail is loose, the vibration plate 72 and the feedback plate 74 will vibrate slightly, and the vibration action cannot overcome the elastic force of the spring 115 between the outer tube 113 and the inner rod 114. In this case, the vibration action of the feedback plate 74 cannot push the inner rod 114 into the outer tube 113, and the connecting ring 112 will not fall off from the inner rod 114. When the guide rail is loose, the operation of the elevator will produce a large amplitude vibration. After the large vibration is amplified by the angle amplification mechanism, the feedback plate 74 can smoothly push the inner rod 114 into the outer tube 113, and then the connecting ring 112 can smoothly fall off from the inner rod 114.

[0079] Each mounting plate 6 is provided with an early warning structure, a position feedback structure and a trigger structure. The early warning structure comprises: a box body 91, fixed to the side of the mounting plate 6 by a cross bar, one end of the box body 91 is provided with a through hole; an opening 92, provided on the top surface of the box body 91; an automatic alarm 93, installed on the top surface of the box body 91; a contact switch 94 (such as Figure 7As shown), it is fixed inside the box body 91 and is electrically connected to the automatic alarm 93. The position feedback structure includes: a slider 101, which slides inside the box body 91 and is arranged opposite to the contact switch 94; a reflective sheet 102, which is fixed on the top surface of the slider 101. When the slider 101 squeezes the contact switch 94, the reflective sheet 102 just moves to a position opposite to the opening 92. When the staff is looking for the loose position of the guide rail, they can use a flashlight to illuminate each fixed bracket 1 on the guide rail. Since the reflective sheet 102 corresponding to the loose position is opposite to the opening 92, when the light is irradiated on the reflective sheet 102, the staff can get visual feedback and quickly lock the loose position of the guide rail. This special structural design facilitates the staff to quickly locate the loose position of the guide rail. It is worth noting that even if there is no reflective sheet 102 to provide visual feedback, the staff can determine the position of the loose guide rail bracket according to the alarm signal emitted by the automatic alarm 93; the limit opening 103 , opened on the side of the box body 91 and arranged along the length direction of the box body 91; a limit block 104, fixed on the side of the slider 101, and sliding in the limit opening 103; a side plate 105, fixed on the side of the box body 91; a tension spring 106, one end of the tension spring 106 is connected to the end of the side plate 105 away from the box body 91, and the other end is connected to the limit block 104, the trigger structure includes: a connecting rope 111, one end of which is fixed on the slider 101, and the other end extends to the box body 91 through the through hole 1; a connecting ring 112, fixed to one end of the connecting rope 111 located outside the box body 91; an outer cylinder 113, fixed to the side of the mounting plate 6, one end of which is open; an inner rod 114, slidably arranged in the outer cylinder 113, one end of the inner rod 114 extends to the outside of the outer cylinder 113 and is inserted into the connecting ring 112, and the end of the feedback plate 74 away from the sleeve 71 is arranged opposite to the inner rod 114; a spring 115, one end of which is connected to the outer cylinder 113, and the other end of which is connected to the inner rod 114;

[0080] With the long-term use of the elevator, the guide rail may become loose. When the guide rail is loose, the lifting and lowering of the elevator will cause the guide rail to vibrate, and the vibration of the guide rail will be transmitted to the plug plate 81, causing the plug plate 81 to vibrate. When the plug plate 81 vibrates, it can drive the connecting frame 73 to vibrate. Since the sleeve 71 is rotatably mounted on the shaft 70, the vibration will be transmitted to the feedback plate 74 through the vibration plate 72 and the sleeve 71, causing the feedback plate 74 to vibrate. When the feedback plate 74 vibrates, the feedback plate 74 will push the inner rod 114 to retract the inner rod 114 into the outer cylinder 113. At this time, the connecting ring 112 mounted on the inner rod 114 will fall off the inner rod 114. Without the restriction of the connecting ring 112, the slider 101 can move under the elastic force of the tension spring 106 and squeeze the contact switch 94. When the contact switch 94 is squeezed, the automatic alarm 93 can be energized and send an alarm signal to the relevant personnel who maintain the elevator.

[0081] The specific working principle of the present invention is as follows:

[0082] When the spacing adjustment device of the elevator guide rail bracket proposed by the present invention is used, the staff first fixes the two fixed brackets 1 on the elevator shaft wall according to the pre-marked positions, and makes the two fixed brackets 1 face each other and parallel. The device provides two adjustment mechanisms. The distance between the two guide rail clamps 3 can be adjusted by the first adjustment structure, and the distance between the two guide rail clamps 3 and the elevator shaft wall can be adjusted by the second adjustment structure. Specifically, for the first adjustment structure, the staff rotates the handle installed on the first screw 41 to rotate the first screw 41. Since the first screw 41 is provided with two threaded sections of the same length and opposite directions, under the limiting action of the first guide rod 42, the first screw 41 can drive the two movable seats 43 to approach or move away from each other when it rotates. When the movable seat 43 moves, it can drive the guide rail clamp 3 to move through the connecting column 45. Therefore, the staff can adjust the distance between the two guide rail clamps 3 by rotating the first screw 41. For the second adjustment structure, the staff The operator turns the handle on the second screw rod 52 to rotate the second screw rod 52. When the second screw rod 52 rotates, it can move and drive the adjustment plate 54 to move. During the movement of the adjustment plate 54, the second guide rod 53 limits and guides the movement of the adjustment plate 54. When the adjustment plate 54 moves, it can drive the connecting rod 56 to move through the two collars 57, so that the connecting rod 56 drives the connecting column 45 to move. When the connecting column 45 moves, the guide rail clamp 3 at its end position will also move accordingly. Therefore, the operator can adjust the distance between the guide rail clamp 3 and the elevator shaft wall by rotating the second screw rod 52. In summary, the spacing adjustment device of the guide rail bracket not only enables the operator to adjust the distance between the guide rail clamp 3 and the elevator shaft wall, but also supports adjusting the distance between the two guide rail clamps 3, which is convenient for the operator to flexibly adjust the position of the two adjacent guide rails. In addition, these two adjustment mechanisms allow the operator to adjust the positions of the two guide rail clamps 3 at the same time, without having to adjust the positions of the guide rail clamps 3 one by one, and the operation is convenient.

[0083] For the two moving seats 43, each moving seat 43 is provided with a loosening warning function. Specifically, in the initial state, the vibration plate 72, the connecting frame 73 and the feedback plate 74 are all in a state perpendicular to the elevator shaft wall, and the connecting ring 112 is sleeved on the inner rod 114. In this case, the connecting ring 112 pulls the slider 101 through the connecting rope 111, so that the reflective sheet 102 on the slider 101 is staggered with the opening 92, that is, the staff cannot see the reflective sheet 102 through the opening 92, and the tension spring 106 is in a stretched state. When installing the guide rail, the staff uses screws to fix the mounting block 82 to the side of the guide rail, and at the same time, the end of the plug plate 81 away from the guide rail extends into the connecting frame 73. With the long-term use of the elevator, the guide rail may become loose. When the guide rail is loose, the lifting of the elevator will cause the guide rail to vibrate, and the vibration of the guide rail will be transmitted to the plug plate 81, causing the plug plate 81 to vibrate. When the plug plate 81 vibrates, it can drive the connecting frame 73 to vibrate. The cylinder 71 is rotatably sleeved on the shaft 70, so the vibration will be transmitted to the feedback plate 74 through the vibration plate 72 and the sleeve 71, so that the feedback plate 74 also vibrates. When the feedback plate 74 vibrates, the feedback plate 74 will push the inner rod 114 to retract the inner rod 114 into the outer cylinder 113. At this time, the connecting ring 112 sleeved on the inner rod 114 will fall off the inner rod 114. Without the restriction of the connecting ring 112, the slider 101 can move under the elastic force of the tension spring 106 and squeeze the contact switch 94. When the contact switch 94 is squeezed, the automatic alarm 93 can be energized and send an alarm signal to the relevant personnel who maintain the elevator. In summary, this early warning mechanism realizes automatic alarm when the guide rail vibrates, so that the staff can deal with the looseness of the guide rail in time to avoid elevator safety accidents. The specific structure, working principle and power supply method of the automatic alarm 93 are all existing technologies, which are not the innovative part of the present technical solution. They are not shown in the figure and will not be described in detail here.

[0084] In addition, when the slider 101 squeezes the contact switch 94, the reflective sheet 102 just moves to the position facing the opening 92. When the staff is looking for the loose position of the guide rail, they can use a flashlight to illuminate each fixed bracket 1 on the guide rail. Since the reflective sheet 102 corresponding to the loose position faces the opening 92, when the light shines on the reflective sheet 102, the staff can get visual feedback and quickly lock the loose position of the guide rail. This special structural design facilitates the staff to quickly locate the loose position of the guide rail. It is worth mentioning that even if there is no reflective sheet 102 to provide visual feedback, the staff can determine the position of the loose guide rail bracket according to the alarm signal issued by the automatic alarm 93.

[0085] It is worth noting that the shaft 70, sleeve 71, vibration plate 72, connecting frame 73 and feedback plate 74 together form an angle magnification mechanism based on the lever principle. In this mechanism, the vibration plate 72 is used as an input lever for receiving vibration, and the feedback plate 74 is used as an output lever for feedback vibration. The length of the output lever is longer than that of the input lever. When the input lever rotates a certain angle, the output lever will also rotate accordingly, but the rotation angle of the output lever will be much larger than that of the input lever, thereby achieving angle magnification. This angle magnification mechanism can amplify the vibration generated when the guide rail is loose. Through this mechanism, when the elevator guide rail is loose, the execution structure and the vibration conduction structure can operate in time. It is worth noting that when the guide rail is normal When the guide rail is loose, the elevator will vibrate greatly during operation. After the large vibration is amplified by the angle amplification mechanism, the feedback plate 74 can smoothly push the inner rod 114 into the outer tube 113, thereby causing the connecting ring 112 to smoothly fall off the inner rod 114.

[0086] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A spacing adjustment device for an elevator guide rail bracket, characterized in that: include: Two fixed brackets (1) are arranged opposite to each other; Two fixing plates (2) are respectively fixed on the two fixing brackets (1); two rail clamps (3); A first adjustment structure, arranged between the two fixing plates (2) and used for adjusting the distance between the two guide rail clamps (3); A second adjustment structure, arranged between the two fixing plates (2), and used for adjusting the distance between the two guide rail clamps (3) and the elevator shaft wall; The first adjustment structure comprises: A first screw rod (41) is rotatably mounted between the two fixing plates (2); A first guide rod (42) fixed between the two fixing plates (2); Two movable seats (43) are both threadedly sleeved on the first screw rod (41), and each of the movable seats (43) is slidably sleeved on the first guide rod (42); Two through openings (44) are respectively opened on the two movable seats (43); Two connecting columns (45) are respectively slidable in the two through openings (44), and one end of the two connecting columns (45) is respectively fixedly connected to the two guide rail clamps (3); The second adjustment structure comprises: A transverse plate (51) fixed between the two fixing plates (2); A second screw rod (52) passes through the transverse plate (51) and is threadably sleeved with the transverse plate (51); A second guide rod (53) fixed on a side surface of the transverse plate (51); an adjusting plate (54), one end of the adjusting plate (54) being rotatably connected to the second screw rod (52), and the other end of the adjusting plate (54) passing through the second guide rod (53) and being slidably connected to the second guide rod (53); A slideway (55) is provided on the adjustment plate (54) and is arranged along the length direction of the adjustment plate (54); Two connecting rods (56), one end of which is respectively fixed to the two connecting pillars (45), and the other end of which passes through the slideway (55); Four collars (57), each two collars (57) form a group, the two groups of collars (57) are respectively fixedly sleeved on two connecting rods (56), and the two collars (57) located on the same connecting rod (56) are respectively located on two sides of the adjustment plate (54).

2. A spacing adjustment device for elevator guide rail brackets according to claim 1, characterized in that: The first screw rod (41) is provided with two threaded sections of the same length and in opposite directions, and the two movable seats (43) are respectively threadedly sleeved on the two threaded sections.

3. A spacing adjustment device for an elevator guide rail bracket according to any one of claims 1-2, characterized in that: A mounting plate (6) is fixed to the top surface of the two movable seats (43), and the mounting plate (6) is in an L-shaped structure. An execution structure and a vibration conduction structure are provided on each movable seat (43), and an early warning structure, a position feedback structure and a trigger structure are provided on each mounting plate (6).

4. A spacing adjustment device for elevator guide rail brackets according to claim 3, characterized in that: The execution structure includes: A shaft (70) fixed on the top surface of the movable seat (43); A sleeve (71) rotatably sleeved on the shaft (70); A vibration plate (72), one end of which is fixedly connected to the outer peripheral surface of the sleeve (71); A connecting frame (73) is fixed to the other end of the vibration plate (72) and has a U-shaped structure; A feedback plate (74) has one end fixedly connected to the outer peripheral surface of the sleeve (71), and the feedback plate (74) and the vibration plate (72) are located on the same straight line.

5. A spacing adjustment device for elevator guide rail brackets according to claim 4, characterized in that: The vibration conduction structure comprises: An insert plate (81), one end of which extends into the connecting frame (73); A mounting block (82) is fixed to the other end of the plug plate (81), and at least four mounting holes are formed on the mounting block (82).

6. A spacing adjustment device for elevator guide rail brackets according to claim 5, characterized in that: The early warning structure includes: A box body (91) is fixed to the side of the mounting plate (6) via a cross bar, and a through hole is formed at one end of the box body (91); An opening (92) is provided on the top surface of the box body (91); An automatic alarm (93) mounted on the top surface of the box body (91); The contact switch (94) is fixed inside the box body (91) and is electrically connected to the automatic alarm (93).

7. A spacing adjustment device for elevator guide rail brackets according to claim 6, characterized in that: The position feedback structure comprises: A slider (101) slides in the box body (91) and is arranged opposite to the contact switch (94); A reflective sheet (102) fixed on the top surface of the sliding block (101); A limiting opening (103) is provided on a side surface of the box body (91) and is arranged along the length direction of the box body (91); A limit block (104) is fixed on a side surface of the sliding block (101) and slides in the limit opening (103); A side plate (105) fixed to a side surface of the box body (91); A tension spring (106), one end of the tension spring (106) being connected to an end of the side plate (105) away from the box body (91), and the other end of the tension spring (106) being connected to the limit block (104).

8. A spacing adjustment device for elevator guide rail brackets according to claim 7, characterized in that: The trigger structure comprises: A connecting rope (111), one end of which is fixed to the slider (101), and the other end of which passes through the through hole and extends to the outside of the box body (91); A connecting ring (112) fixed to one end of the connecting rope (111) located outside the box body (91); An outer cylinder (113) is fixed to the side of the mounting plate (6) and has an open end; an inner rod (114) slidably disposed in the outer cylinder (113), one end of the inner rod (114) extending to the outside of the outer cylinder (113) and inserted into the connecting ring (112); A spring (115) has one end connected to the outer cylinder (113) and the other end connected to the inner rod (114).

9. A spacing adjustment device for elevator guide rail brackets according to claim 8, characterized in that: One end of the feedback plate (74) away from the sleeve (71) is arranged directly opposite to the inner rod (114).

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