Anti-toppling device for ladder truck

Abstract

The utility model relates to the technical field of anti-toppling of ladder trucks, and provides an anti-toppling device for a ladder truck, which comprises a clamping piece used for clamping a bottom rod; the adjusting rod is movably arranged relative to the clamping piece, the interval between the clamping piece and the abutting piece is adjusted through movement of the adjusting rod, the device adapts to rails of different widths, the clamping piece can adapt to clamping of bottom rods of different diameters, the self-adjusting spring acts on the adjusting rod and the self-adjusting sleeve, and when the width of the rails changes to a certain degree, self-adaptive adjustment can be conducted through the self-adjusting spring. By means of the technical scheme, the safety of the ladder truck at the rail curve is improved, and the safety reaches the standard.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-dumping of ladder trucks, and specifically relates to an anti-dumping device for ladder trucks. Background Art

[0002] Ladder cars are generally 5-6m high and have rollers. The ladder car moves on the rails through rolling contact between the rollers and the rails. The height of the inner rail at the bend is lower than the height of the outer rail. Therefore, the ladder car may tilt or even collapse during movement. In order to ensure that the ladder car with a height of 5-6m can be used safely at the bend of the rails, a roller anti-dumping device is used to improve the safety of the ladder car at the bend of the rails so that the safety meets the standard. For this purpose, we have designed an anti-dumping device for ladder cars. Utility Model Content

[0003] The utility model provides an anti-dumping device for a ladder car, which improves the safety of the ladder car at a rail bend and ensures that the safety meets the standard.

[0004] The technical solution of the utility model is as follows: an anti-dumping device for a ladder truck comprises:

[0005] A clamping member, used for clamping the bottom rod;

[0006] An adjusting rod is movably arranged relative to the clamping member, and the adjusting rod has a plurality of adjusting holes;

[0007] A rod sleeve, a movable sleeve is arranged on the adjusting rod;

[0008] A positioning sleeve, arranged on the clamping member and sleeved on the adjusting rod, the positioning sleeve having a positioning hole;

[0009] A first latch, adapted to the adjustment hole and movably disposed in the rod sleeve, wherein the first latch is used to be plugged and connected with the adjustment hole after being moved;

[0010] A second latch pin is matched with the positioning hole and is movably arranged in the rod sleeve, and the second latch pin is plug-connected with the positioning hole after being moved;

[0011] An adjusting latch, movably arranged on the rod sleeve, and used to push the first latch and the second latch to move in sequence after the adjusting latch moves;

[0012] The abutment member moves along with the adjusting rod, and the abutment member is used for abutting against the rail.

[0013] Optionally, the first latch is arranged on the rod sleeve in a movable manner parallel to the radial direction of the rod sleeve;

[0014] The first latch has a first slider and further includes:

[0015] The first elastic member has two ends acting on the first sliding block and the rod sleeve respectively, and the first elastic member is used to provide a force for the first latch to move away from the adjusting rod.

[0016] Optionally, the second latch is arranged on the rod sleeve in a movable manner parallel to the radial direction of the rod sleeve;

[0017] The second latch has a second slider and further includes:

[0018] The second elastic member has two ends acting on the second sliding block and the rod sleeve respectively, and the second elastic member is used to provide a force to move the second latch away from the adjusting rod.

[0019] Optionally, the rod sleeve has a through hole, and the adjustment pin is arranged in the through hole to be movable parallel to the axial direction of the rod sleeve;

[0020] The upper ends of the first latch and the second latch are located in the through hole, and the adjusting latch moves to abut against the upper ends of the first latch and the second latch in sequence, so as to provide a force for the first latch and the second latch to approach the adjusting rod.

[0021] Optionally, the adjustment pin is rotatably disposed in the through hole;

[0022] The adjusting pin has an adjusting thread, the through hole has a threaded portion, the threaded portion is located in the middle of the first pin and the second pin, and the adjusting thread is used for threaded connection with the threaded portion.

[0023] Optionally, the adjusting rod has a guide groove, and the rod sleeve has a guide block slidably arranged with the guide groove.

[0024] Optionally, the adjusting rod further has a limiting groove, and further comprises:

[0025] The self-adjusting sleeve and the movable sleeve are arranged on the adjusting rod.

[0026] A self-adjusting bolt is threadedly connected to the self-adjusting sleeve, one end of the self-adjusting bolt abuts against the limiting groove after the self-adjusting sleeve moves, and the side surface of the self-adjusting bolt abuts against the side wall of the limiting groove after the self-adjusting sleeve moves;

[0027] The self-adjusting elastic member has two ends acting on the self-adjusting sleeve and the adjusting rod respectively, and is used to provide a force for the self-adjusting sleeve to approach the adjusting rod.

[0028] Optionally, the self-adjusting sleeve is rotatably arranged on the adjusting rod, and further comprises:

[0029] A rotating disk is rotatably arranged in the self-adjusting sleeve relative to the self-adjusting sleeve, two ends of the self-adjusting elastic member act on the rotating disk and the adjusting rod respectively, and the self-adjusting elastic member acts on the self-adjusting sleeve through the rotating disk.

[0030] Optionally, the self-adjusting sleeve has a mounting portion, the abutment member is arranged on the mounting portion, the abutment member is a roller, and the roller is used for rolling abutment with the rail.

[0031] Optionally, the clamping member is a clamp.

[0032] The working principle and beneficial effects of the utility model are:

[0033] In the utility model, the clamping member is used to clamp the bottom rod to provide a stable supporting position. After the adjusting rod moves, the abutting member is driven to move, and the adjusting rod moves to a suitable position. After the abutting member abuts against the rail stably, the adjusting pin is moved to push the first pin to move and plug and connect with the adjusting hole, so that the rod sleeve and the adjusting rod move synchronously. After the adjusting pin is further moved, the second pin is pushed to plug and connect with the positioning hole, so that the adjusting rod is fixed on the clamping member, thereby realizing the position adjustment of the abutting member, adapting to automobile bottom rods of different widths, improving adaptability, and convenient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.

[0035] Figure 1 It is a schematic diagram of the structure of the utility model;

[0036] Figure 2 for Figure 1 A schematic cross-sectional structure diagram of ;

[0037] Figure 3 for Figure 2 Middle I is a partial enlarged schematic diagram;

[0038] Figure 4 This is a schematic diagram of the structure of the adjusting rod of the utility model;

[0039] Figure 5 This is a schematic diagram of the structure of a clamping member of the utility model;

[0040] Figure 6 This is a schematic diagram of the structure of a clamping member of the utility model;

[0041] Figure 7 This is a schematic diagram of the structure of a clamping member of the utility model;

[0042] Figure 8 This is a schematic diagram of the structure of a clamping member of the utility model;

[0043] In the figure: 1, clamping member; 101, first clamping part; 102, second clamping part; 103, third clamping part; 2, adjusting rod; 201, adjusting hole; 202, guide groove; 203, limiting groove; 3, rod sleeve; 301, through hole; 302, threaded part; 303, guide block; 4, positioning sleeve; 401, positioning hole; 5, first latch; 501, first slider; 6, second latch; 601, second slider; 7, adjusting latch; 701, adjusting thread; 8, abutment; 9, self-adjusting sleeve; 901, mounting part; 10, self-adjusting bolt; 11, self-adjusting elastic member; 12, turntable; 13, first elastic member; 14, second elastic member; 15, bottom rod; 16, support tube; 17, fixing member; 1701, first fixing part; 1702, second fixing part. DETAILED DESCRIPTION

[0044] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0045] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0046] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0047] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0048] Reference Figure 1 to Figure 8, an anti-dumping device for a ladder car is proposed, comprising: a clamping member 1 for clamping a bottom rod 15; an adjusting rod 2, movably arranged relative to the clamping member 1, the adjusting rod 2 having a plurality of adjusting holes 201; a rod sleeve 3, movably sleeved on the adjusting rod 2; a positioning sleeve 4, arranged on the clamping member 1 and sleeved on the adjusting rod 2, the positioning sleeve 4 having a positioning hole 401; a first latch 5, adapted to the adjusting hole 201, and movably arranged in the rod sleeve 3, the first latch 5 is used for plugging and connecting with the adjusting hole 201 after movement; a second latch 6, adapted to the positioning hole 401, and movably arranged in the rod sleeve 3, the second latch 6 is used for plugging and connecting with the positioning hole 401 after movement; an adjusting latch 7, movably arranged on the rod sleeve 3, the adjusting latch 7 is used for sequentially pushing the first latch 5 and the second latch 6 to move after movement; an abutment member 8, moving with the adjusting rod 2, the abutment member 8 is used for abutting with the rail.

[0049] In this embodiment, the width of the ladder car base is different, and the distance from the bottom rod 15 to the rail is different. The clamping member 1 is fixed on the bottom rod 15. The clamping member 1 can be a hoop, a sleeve clamp matched with the diameter of the bottom rod 15, etc. The adjusting rod 2 is moved to drive the abutment member 8 to move, so that the abutment member 8 moves to fully abut against the side of the rail to keep the position of the adjusting rod 2 fixed, and the rod sleeve 3 is moved to make the rod sleeve 3 close to the positioning sleeve 4 set on the adjusting rod 2, so that the second latch 6 is aligned with the positioning hole 401, and the first latch 5 is aligned with an adjusting hole 201 on the adjusting rod 2, and the adjusting latch 7 is moved. The adjusting latch 7 pushes the first latch 5 to move, so that the first latch 5 is inserted into the adjusting hole 201, so that the adjusting rod 2 and the rod sleeve 3 are relatively fixed, and the adjusting latch 7 is further moved. The adjusting latch 7 pushes the second latch 6 to move, so that the second latch 6 is inserted into the positioning hole 401, so that the rod sleeve 3 and the positioning sleeve 4 are relatively fixed. Through the above steps, the fixing effect on the adjusting rod 2 is achieved.

[0050] It is worth noting that the width of the ladder car base is designed according to the rails and the ladder car body. The width of the ladder car is usually 1.1m, 1.25m, 1.3m, 1.35m, 1.4m, and the width of the rails is more standardized. Therefore, the distance between the bottom rod 15 and the rails is within a certain range. When setting the adjustment hole 201 on the adjustment rod 2, it can be opened according to the adaptive width range. At the same time, the main function of the positioning hole 401 is to fix the rod sleeve 3 by plugging the second pin 6 into the positioning hole 401, so one positioning hole 401 can be set.

[0051] Furthermore, the first latch 5 is movable on the rod sleeve 3 in a radial direction parallel to the rod sleeve 3; the first latch 5 has a first slider 501, and also includes: a first elastic member 13, whose two ends act on the first slider 501 and the rod sleeve 3 respectively, and the first elastic member 13 is used to provide a force for the first latch 5 to move away from the adjusting rod 2.

[0052] The second latch 6 is movable on the rod sleeve 3 in a radial direction parallel to the rod sleeve 3; the second latch 6 has a second slider 601, and also includes: a second elastic member 14, whose two ends act on the second slider 601 and the rod sleeve 3 respectively, and the second elastic member 14 is used to provide a force for the second latch 6 to move away from the adjusting rod 2.

[0053] In this embodiment, as a preference, the first elastic member 13 and the second elastic member 14 are compression springs, which can be arranged radially along the rod sleeve 3 to provide a stable elastic force. Specifically, after the adjustment pin 7 moves, it abuts against the first pin 5, and the first pin 5 moves along the radial direction of the rod sleeve 3 to approach the adjustment rod 2. The compression spring corresponding to the first pin 5 is in a compressed state. After the adjustment pin 7 moves further, it pushes the second pin 6 to move along the radial direction of the rod sleeve 3. The compression spring corresponding to the second pin 6 is in a compressed state. After the adjustment pin 7 is removed, the second pin 6 and the first pin 5 are reset in turn under the elastic force of the compression spring. Through the above scheme, it is achieved that the first pin 5 and the second pin 6 are pushed to move by the adjustment pin 7, so that the adjustment rod 2 is fixed on the positioning sleeve 4 through the rod sleeve 3.

[0054] Furthermore, the rod sleeve 3 has a through hole 301, and the adjusting pin 7 is movably arranged in the through hole 301 parallel to the axial direction of the rod sleeve 3; the upper ends of the first pin 5 and the second pin 6 are located in the through hole 301, and the adjusting pin 7 abuts against the upper ends of the first pin 5 and the second pin 6 in turn after moving, so as to provide a force for the first pin 5 and the second pin 6 to approach the adjusting rod 2.

[0055] The adjusting pin 7 is rotatably arranged in the through hole 301 ; the adjusting pin 7 has an adjusting thread 701 , and the through hole 301 has a threaded portion 302 , the threaded portion 302 is located in the middle of the first pin 5 and the second pin 6 , and the adjusting thread 701 is used for threaded connection with the threaded portion 302 .

[0056] In this embodiment, after the adjustment pin 7 moves, it abuts against the upper end of the first pin 5. After pushing the first pin 5 to move, the adjustment pin 7 is further pushed and rotated, so that the adjustment thread 701 of the adjustment pin 7 is threadedly connected with the threaded portion 302 in the through hole 301. The adjustment pin 7 is further rotated, and the adjustment pin 7 moves further. One end with the adjustment thread 701 abuts against the upper portion of the second pin 6, pushing the second pin 6 to move. Through the threaded connection, the stability of the adjustment pin 7, the first pin 5 and the second pin 6 after movement is improved.

[0057] Furthermore, the adjusting rod 2 has a guide groove 202 , and the rod sleeve 3 has a guide block 303 slidably arranged with the guide groove 202 .

[0058] In this embodiment, the rod sleeve 3 is slidably set on the adjusting rod 2, and the guide groove 202 is used to limit and guide the rod sleeve 3, so that the rod sleeve 3 will not be eccentric during the movement, affecting the normal sliding process, and the first pin 5 can always be aligned with the positioning hole 401 during the movement of the rod sleeve 3, thereby improving the convenience of plugging and fixing after movement.

[0059] Furthermore, the adjusting rod 2 also has a limiting groove 203, and also includes: a self-adjusting sleeve 9, a movable sleeve is arranged on the adjusting rod 2, a self-adjusting bolt 10, which is threadedly connected to the self-adjusting sleeve 9, and after the self-adjusting bolt 10 moves, one end abuts against the limiting groove 203, and after the self-adjusting sleeve 9 moves, the side of the self-adjusting bolt 10 abuts against the side wall of the limiting groove 203; a self-adjusting elastic member 11, the two ends of which act on the self-adjusting sleeve 9 and the adjusting rod 2 respectively, and are used to provide a force for the self-adjusting sleeve 9 to approach the adjusting rod 2.

[0060] The self-adjusting sleeve 9 is rotatably arranged on the adjusting rod 2, and also includes: a turntable 12, which is rotatably arranged inside the self-adjusting sleeve 9 relative to the self-adjusting sleeve 9, and the two ends of the self-adjusting elastic member 11 act on the turntable 12 and the adjusting rod 2 respectively, and the self-adjusting elastic member 11 acts on the self-adjusting sleeve 9 through the turntable 12.

[0061] In this embodiment, the rails may have a width deviation of several millimeters due to the influence of the environment during actual use and construction. Preferably, the self-adjusting elastic member 11 is a tension spring. When the width increases, the self-adjusting elastic member 11 extends, and when the width decreases, the self-adjusting elastic member 11 contracts, so as to adjust the gap of the abutment member 8. The adjustment range is about 10-15mm. The self-adjusting elastic member 11 is set to improve the adaptability of the abutment member 8 to the rails during the movement of the ladder frame. Some rails may have splints at the joints. The staff can rotate the abutment member 8 90 degrees. After the ladder car passes the steel plate joint, the abutment member 8 is rotated and reset to fully abut the side of the rail.

[0062] The specific rotation method is: move the adjusting pin 7, the adjusting pin 7 cancels the pushing of the second pin 6, so that the rod sleeve 3 and the adjusting rod 2 remain fixedly connected, and the connection between the rod sleeve 3 and the positioning sleeve 4 is cancelled. The staff pulls the adjusting rod 2 away from the positioning sleeve 4, further loosens the self-adjusting bolt 10, cancels the abutment between the self-adjusting bolt 10 and the outer wall of the guide groove 202, and then rotates the abutment 8.

[0063] Furthermore, the self-adjusting sleeve 9 has a mounting portion 901 , and the abutment member 8 is disposed on the mounting portion 901 . The abutment member 8 is a roller, and the roller is used for rolling abutment with the rail.

[0064] In this embodiment, the abutment member 8 is a roller, and the abutment between the roller and the rail is realized so that the ladder frame can maintain a moving state while maintaining stability.

[0065] Furthermore, the clamping member 1 is a clamp.

[0066] In this embodiment, different bottom rods 15 have different diameters. The clamping hoop can be used to clamp the bottom rods 15 with different diameters, thereby improving adaptability. Figure 1-Figure 2 As shown, it is a clamp structure, and the interval is adjusted by bolts.

[0067] example Figure 5-6 As shown, a clamping structure includes a clamping part. Taking the bottom rod 15 with a diameter of 30 mm and 50 mm as an example, when clamping the bottom rod 15 with a diameter of 30 mm, the first clamping part 101 and the third clamping part 103 clamp the bottom rod 15 together. When clamping the bottom rod 15 with a diameter of 50 mm, the second clamping part 102 and the third clamping part 103 clamp the bottom rod 15 together. By exchanging the positions of the first clamping part 101 and the second clamping part 102, stable clamping of bottom rods 15 with different diameters is achieved, thereby improving adaptability and convenience.

[0068] example Figure 7-8 As shown, a clamp structure includes a fixing part 17. Taking the bottom rod 15 with a diameter of 30 mm and 50 mm as an example, when clamping the bottom rod 15 with a diameter of 30 mm, first, the support tube 16 with a diameter of 10 mm is fixed to the third clamping part 103 by a pin. The third clamping part 103 forms an increased support for the bottom rod 15 through the support tube 16, and the bottom rod 15 is clamped together with the second fixing part 1702. When clamping the bottom rod 15 with a diameter of 50 mm, the support tube 16 can be removed, and the bottom rod 15 is clamped by the third clamping part 103 and the first fixing part 1701. By exchanging the positions of the first fixing part 1701 and the second fixing part 1702, stable clamping of bottom rods 15 with different diameters is achieved, thereby improving adaptability and convenience.

[0069] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. Anti-dumping device for ladder truck, characterized in that: include: A clamping member (1) for clamping the bottom rod (15); An adjusting rod (2) is movably arranged relative to the clamping member (1), and the adjusting rod (2) has a plurality of adjusting holes (201); A rod sleeve (3), a movable sleeve arranged on the adjusting rod (2); A positioning sleeve (4) is arranged on the clamping member (1) and sleeved on the adjusting rod (2), and the positioning sleeve (4) has a positioning hole (401); A first latch (5) adapted to the adjustment hole (201) and movably arranged in the rod sleeve (3); the first latch (5) is used to be plugged and connected to the adjustment hole (201) after being moved; A second latch (6) is matched with the positioning hole (401) and is movably arranged in the rod sleeve (3); the second latch (6) is plugged and connected with the positioning hole (401) after being moved; an adjusting pin (7) movably arranged on the rod sleeve (3), and the adjusting pin (7) is used to push the first pin (5) and the second pin (6) to move in sequence after being moved; The abutment member (8) moves along with the adjusting rod (2), and the abutment member (8) is used for abutting against the rail.

2. The anti-dumping device for a ladder truck according to claim 1, characterized in that: The first latch pin (5) is arranged on the rod sleeve (3) so as to be movable parallel to the radial direction of the rod sleeve (3); The first latch (5) has a first slider (501) and further comprises: The first elastic member (13) has two ends acting on the first sliding block (501) and the rod sleeve (3) respectively, and the first elastic member (13) is used to provide a force to move the first latch pin (5) away from the adjusting rod (2).

3. The anti-dumping device for a ladder truck according to claim 1, characterized in that: The second latch pin (6) is arranged on the rod sleeve (3) so as to be movable parallel to the radial direction of the rod sleeve (3); The second latch (6) has a second slider (601) and further comprises: The second elastic member (14) has two ends acting on the second sliding block (601) and the rod sleeve (3) respectively, and the second elastic member (14) is used to provide a force to move the second latch pin (6) away from the adjusting rod (2).

4. The anti-dumping device for a ladder truck according to claim 1, characterized in that: The rod sleeve (3) has a through hole (301), and the adjustment pin (7) is arranged in the through hole (301) so as to be movable parallel to the axial direction of the rod sleeve (3); The upper ends of the first latch (5) and the second latch (6) are located in the through hole (301), and the adjusting latch (7) is moved to abut against the upper ends of the first latch (5) and the second latch (6) in sequence, so as to provide a force for the first latch (5) and the second latch (6) to approach the adjusting rod (2).

5. The anti-dumping device for a ladder truck according to claim 4, characterized in that: The adjusting pin (7) is rotatably disposed in the through hole (301); The adjusting pin (7) has an adjusting thread (701), the through hole (301) has a threaded portion (302), the threaded portion (302) is located in the middle of the first pin (5) and the second pin (6), and the adjusting thread (701) is used for threaded connection with the threaded portion (302).

6. The anti-dumping device for a ladder truck according to claim 1, characterized in that: The adjusting rod (2) has a guide groove (202), and the rod sleeve (3) has a guide block (303) slidably arranged with the guide groove (202).

7. The anti-dumping device for a ladder truck according to claim 1, characterized in that: The adjusting rod (2) further comprises a limiting groove (203), and further comprises: A self-adjusting sleeve (9), a movable sleeve is arranged on the adjusting rod (2), A self-adjusting bolt (10) is threadedly connected to the self-adjusting sleeve (9); after the self-adjusting bolt (10) moves, one end thereof abuts against the limiting groove (203); after the self-adjusting sleeve (9) moves, the side surface of the self-adjusting bolt (10) abuts against the side wall of the limiting groove (203); The self-adjusting elastic member (11) has two ends acting on the self-adjusting sleeve (9) and the adjusting rod (2) respectively, and is used to provide a force for the self-adjusting sleeve (9) to approach the adjusting rod (2).

8. The anti-dumping device for a ladder truck according to claim 7, characterized in that: The self-adjusting sleeve (9) is rotatably arranged on the adjusting rod (2), and further comprises: A rotating disk (12) is rotatably arranged in the self-adjusting sleeve (9), and two ends of the self-adjusting elastic member (11) act on the rotating disk (12) and the adjusting rod (2) respectively, and the self-adjusting elastic member (11) acts on the self-adjusting sleeve (9) through the rotating disk (12).

9. The anti-dumping device for a ladder truck according to claim 7, characterized in that: The self-adjusting sleeve (9) has a mounting portion (901), the abutment member (8) is arranged on the mounting portion (901), and the abutment member (8) is a roller, and the roller is used for rolling abutment with a rail.

10. The anti-dumping device for a ladder truck according to claim 1, characterized in that: The clamping piece (1) is a clamping hoop.

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