Ladder wheel with brake device

Abstract

The utility model relates to the technical field of ladder vehicle equipment, and discloses a ladder vehicle wheel with a brake device, which comprises two wheel seats, wheel shafts fixedly mounted in the wheel seats, ladder vehicle wheels rotatably mounted on the wheel shafts positioned in the wheel seats, limiting rings fixedly mounted on the outer sides of the ladder vehicle wheels, and a plurality of limiting teeth fixedly mounted on the outer sides of the limiting rings. Locking rods are movably installed on one sides in the wheel seats, side plates are movably installed on the sides, away from the locking rods, of the wheel seats, and a connecting beam is fixedly connected between the two wheel seats. A plurality of limiting teeth are arranged on the outer sides of the ladder wheels, so that rotation of the ladder wheels can be limited in cooperation with a locking rod, a clamping tooth, an operation handle, a side plate, a compression spring and a tension spring, synchronous operation on the two ladder wheels during braking is achieved in cooperation with a lantern ring, a pressing rod, a connecting rod, an operation plate and a wedge block, and the braking efficiency is guaranteed; if the two ladder wheels are not braked, the operation can be realized only by independently operating the two locking rods, so that the occurrence of operation accidents caused by releasing the braking of the two ladder wheels due to mistaken touch is prevented.

Description

Technical Field

[0001] This utility model relates to the field of ladder truck equipment technology, and in particular to a ladder truck wheel with a braking device. Background Technology

[0002] In track maintenance work, ladder trucks are indispensable tools for workers to carry out high-altitude inspections and equipment maintenance. Their mobility and stability directly affect work efficiency and personnel safety.

[0003] Most existing track maintenance ladders use a relatively simple braking method, with some ladders relying solely on a simple handbrake to brake individual ladder wheels. In the track working environment, this method makes it difficult to achieve synchronous braking of multiple ladder wheels. When an emergency requires rapid braking, the ladder is prone to lateral movement or even derailment due to asynchronous braking of the wheels, seriously threatening the lives of workers and the integrity of track facilities. In terms of brake release, common ladder brake release operations often require only a simple action. At the track work site, workers are easily misoperated by the brake release device during busy work or due to accidental contact with tools or clothing, causing the ladder to slip unexpectedly during operation, leading to serious work accidents and posing a great safety risk to track maintenance work. Utility Model Content

[0004] The purpose of this invention is to provide a ladder wheel with a braking device, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A ladder wheel with a braking device includes two wheel seats. An axle is fixedly installed inside the wheel seat. A ladder wheel is rotatably installed on the axle located inside the wheel seat. A limit ring is fixedly installed on the outside of the ladder wheel. Multiple limit teeth are fixedly installed on the outside of the limit ring. A locking rod is movably installed on one side inside the wheel seat. A side plate is movably installed on the side of the wheel seat opposite to the locking rod. A connecting beam is fixedly connected between the two wheel seats. A collar is inserted and installed on the outside of the connecting beam. A pressure rod is fixedly installed on the outside of the collar.

[0007] As a further preferred embodiment of this utility model, a first fixing ring is fixedly installed on the front side of the wheel seat, and two C-shaped guide seats are also fixedly installed on one side of the wheel seat, with a wedge block interlaced between the two C-shaped guide seats.

[0008] As a further preferred embodiment of this utility model, the transverse cross section of the wedge is T-shaped, and the lower end face of the wedge is sloping. The wedge is inserted between two C-shaped guide seats, which can cooperate with the first fixing ring to realize the vertical displacement of the wedge, thereby enabling the side plate to be squeezed horizontally.

[0009] As a further preferred embodiment of this utility model, a second fixing ring is fixedly installed on one side of the locking rod, a locking tooth is fixedly installed at the bottom of the locking rod, an operating handle is fixedly installed on the side of the locking rod away from the locking tooth, and the locking rod is rotatably installed in the wheel seat by connecting bolts. A tension spring is also movably connected between the second fixing ring and the first fixing ring. After the locking rod is rotatably installed in the wheel seat by connecting bolts, the tension of the tension spring can make the guide shaft engage between the two limiting teeth, thereby restricting the rotation of the ladder wheel.

[0010] As a further preferred embodiment of this utility model, a limiting block is fixedly installed on one side of the side plate relative to the operating handle. The upper surface of the limiting block has a sloping structure. The side plate is inserted and installed on the connecting bolt and close to the wheel seat. The connecting bolt between the side plate and the wheel seat is also threaded with a nut. Setting a nut between the side plate and the wheel seat can maintain a certain distance between the side plate and the wheel seat, allowing the lower end of the wedge to be inserted between the wheel seat and the side plate. A compression spring is also fitted on the outside of the connecting bolt. One side of the compression spring abuts against one side of the side plate, and the other side abuts against the end of the connecting bolt. With the help of the compression spring, the side plate can position the limiting block above the operating handle, thereby limiting the rotation of the locking rod and ensuring that the locking teeth disengage from the two limiting teeth, thus ensuring the rotation of the ladder wheel.

[0011] As a further preferred embodiment of this utility model, a connecting rod is fixedly connected between the two collars, and an operating plate is fixedly installed on the outside of the connecting rod. The ends of the two pressure rods away from the collars respectively abut against the corresponding wedges. By operating the operating plate once, the connecting rod, the two sets of collars, and the pressure rods can be used to press down the two wedges synchronously, thereby causing the two side plates to move synchronously. This achieves the synchronous release of the limit on the two operating handles, thus enabling the locking rod to rotate and cooperate with the locking teeth to quickly limit the movement of the two ladder wheels.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] In this invention, multiple limiting teeth are provided on the outer side of the ladder wheel, which can work with locking rods, locking teeth, operating handles, side plates, compression springs, and tension springs to limit the rotation of the ladder wheel. In conjunction with collars, pressure rods, connecting rods, operating plates, and wedges, the two ladder wheels can be operated synchronously during braking to ensure braking efficiency. When the ladder wheel is released from braking, it can only be achieved by operating the two locking rods separately to prevent accidental release of the brakes on the two ladder wheels and the occurrence of operational accidents. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0016] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0017] Figure 4 This is a schematic diagram of the side plate structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the disassembled structure of the collar, pressure rod, and connecting rod of this utility model.

[0019] In the diagram: 1. Wheel seat; 2. Wheel axle; 3. Ladder wheel; 4. Limiting ring; 5. Limiting tooth; 6. Locking rod; 7. Side plate; 8. Connecting beam; 9. Collar; 10. Pressure rod; 11. First fixing ring; 12. C-shaped guide seat; 13. Second fixing ring; 14. Clamping tooth; 15. Operating handle; 16. Guide shaft; 17. Limiting block; 18. Connecting bolt; 19. Compression spring; 20. Tension spring; 21. Wedge block; 22. Connecting rod; 23. Operating panel. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] like Figures 1-5 As shown, the present invention provides a ladder wheel with a braking device, comprising two wheel seats 1, a wheel axle 2 fixedly installed inside the wheel seat 1, a ladder wheel 3 rotatably installed on the wheel axle 2 located inside the wheel seat 1, a limit ring 4 fixedly installed on the outside of the ladder wheel 3, a plurality of limit teeth 5 fixedly installed on the outside of the limit ring 4, a locking rod 6 movably installed on one side inside the wheel seat 1, a side plate 7 movably installed on the side of the wheel seat 1 opposite to the locking rod 6, a connecting beam 8 fixedly connected between the two wheel seats 1, a collar 9 inserted through the outside of the connecting beam 8, and a pressure rod 10 fixedly installed on the outside of the collar 9.

[0022] like Figures 1-5 As shown, a first fixing ring 11 is fixedly installed on the front side of the wheel seat 1. Two C-shaped guide seats 12 are also fixedly installed on one side of the wheel seat 1. A wedge 21 is inserted between the two C-shaped guide seats 12. The transverse cross section of the wedge 21 is T-shaped, and the lower end face of the wedge 21 is sloping. When the wedge 21 is inserted between the two C-shaped guide seats 12, it can cooperate with the first fixing ring 11 to realize the vertical displacement of the wedge 21, thereby enabling the side plate 7 to be squeezed horizontally. A second fixing ring 13 is fixedly installed on one side of the locking rod 6. A locking tooth 14 is fixedly installed at the bottom of the locking rod 6. The side of the locking rod 6 away from the locking tooth 14 An operating handle 15 is fixedly installed, and a locking rod 6 is rotatably installed in the wheel seat 1 via a connecting bolt 18. A tension spring 20 is movably connected between the second fixing ring 13 and the first fixing ring 11. After the locking rod 6 is rotatably installed in one side of the wheel seat 1 via the connecting bolt 18, the tension of the tension spring 20 allows the guide shaft 16 to engage between the two limiting teeth 5, thereby restricting the rotation of the ladder wheel 3. A limiting block 17 is fixedly installed on the side plate 7 relative to the operating handle 15. The upper surface of the limiting block 17 has a sloping structure. The side plate 7 is inserted into the connecting bolt 18 and close to the wheel seat 1. A nut is threaded onto the connecting bolt 18 between the side plate 7 and the wheel seat 1. This nut maintains a certain distance between the side plate 7 and the wheel seat 1, allowing the lower end of the wedge block 21 to insert between the wheel seat 1 and the side plate 7. A compression spring 19 is also fitted onto the outside of the connecting bolt 18. One side of the compression spring 19 abuts against one side of the side plate 7, and the other side abuts against the end of the connecting bolt 18. With the force of the compression spring 19, the side plate 7 can position the limiting block 17 above the operating handle 15, thereby limiting the rotation of the locking rod 6 and ensuring the locking mechanism is secure. The tooth 14 disengages from the two limiting teeth 5, thereby ensuring the rotation of the ladder wheel 3. A connecting rod 22 is fixedly connected between the two collars 9. An operating plate 23 is fixedly installed on the outside of the connecting rod 22, and the ends of the two pressure rods 10 away from the collars 9 respectively abut against the corresponding wedges 21. By operating the operating plate 23 once, the connecting rod 22, the two sets of collars 9, and the pressure rods 10 can be used to press down the two wedges 21 synchronously, thereby causing the two side plates 7 to move synchronously, thus realizing the synchronous release of the limiting of the two operating handles 15. Thus, the rotation of the locking rod 6 can be realized to cooperate with the locking tooth 14 to realize the rapid limiting of the two ladder wheels 3.

[0023] It should be noted that this utility model is a ladder wheel with a braking device. When braking the ladder wheel 3, the operating plate 23 can be directly turned. Then, the operating plate 23 drives the two collars 9 to rotate synchronously on the connecting beam 8 through the connecting rod 22. This causes the two collars 9 to drive one end of the outer pressure rod 10 to press down, so that the two pressure rods 10 simultaneously press down and move the two wedges 21. Then, one side of the two wedges 21 slides down between the corresponding two C-shaped guide seats 12, and then the slope structure at the lower end of the wedges 21 is used to insert into the corresponding side plate 7. Between the side plate 7 and the wheel seat 1, the side plate 7 can be pressed and moved to one side, and the side plate 7 can move on one side of the connecting bolt 18 and the guide shaft 16 through the two through holes inside, and compress the compression spring 19 towards the end of the connecting bolt 18. Then, the side plate 7 drives the limiting block 17 to move to one side and disengage from the operating handle 15. When the limiting block 17 no longer limits the operating handle 15, the locking rod 6 rotates around the connecting bolt 18 with the pulling force of the tension spring 20, so that the locking tooth 14 at the bottom of the locking rod 6 engages between the two limiting teeth 5, thereby completing the synchronous braking of the two ladder wheels 3.

[0024] When releasing the brakes on the ladder wheel 3, it is only necessary to operate the two operating handles 15 in two separate steps. The two operating handles 15 are pressed down, which causes the operating handles 15 to drive the locking rod 6 to rotate around the connecting bolt 18. The locking rod 6 also causes the locking teeth 14 to disengage from the corresponding two limiting teeth 5. The operating handle 15 then uses the slope of the upper end of the limiting block 17 to push the limiting block 17 to one side. When the operating handle 15 moves to the position below the limiting block 17, the side plate 7 is pushed towards the wheel seat 1 by the elastic force of the compression spring 19. This causes the side plate 7 to drive the limiting block 17 to re-intersect above the operating handle 15 and restrict the movement of the operating handle 15. This restricts the movement of the locking rod 6, thus completing the phased release of the brakes on the two ladder wheels 3.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A ladder truck wheel with a brake apparatus, characterized by: The utility model provides a ladder truck wheel locking device, including two wheel seats (1), wheel shaft (2) is fixedly installed in wheel seat (1), ladder truck wheel (3) is rotatably installed in wheel shaft (2) located in wheel seat (1), the outer side fixed mounting of ladder truck wheel (3) is installed limit ring (4), a plurality of limit teeth (5) are fixedly installed to the outer side of limit ring (4), the wheel seat (1) one side swingly installed has lock rod (6), the wheel seat (1) is away from lock rod (6) one side swingly installed and has side plate (7), two wheel seat (1) between fixedly connected with connecting beam (8), the outer side of connecting beam (8) is installed with sleeve ring (9), sleeve ring (9) outer side fixedly installed with pressure lever (10).

2. A ladder truck wheel with braking apparatus as defined in claim 1, wherein: The wheel seat (1) front side fixedly installed with first fixed ring (11), the wheel seat (1) one side still fixedly installed with two C-shaped guide seat (12), two C-shaped guide seat (12) between interpenetration connection has wedge block (21).

3. A ladder truck wheel with braking apparatus as defined in claim 2 wherein: The lateral section of wedge block (21) is T-shaped, and the lower end surface of wedge block (21) is a slope structure.

4. The ladder truck wheel with brake assembly of claim 3, wherein: The one side of lock rod (6) is fixedly installed with second fixed ring (13), the bottom of lock rod (6) is fixedly installed with catch (14), the one side of lock rod (6) away from catch (14) is fixedly installed with operating handle (15), and lock rod (6) is rotatably installed in wheel seat (1) through connecting bolt (18), second fixed ring (13) and first fixed ring (11) between still swingly connected with tension spring (20).

5. The ladder truck wheel with brake assembly of claim 4, wherein: The one side of side plate (7) relative to operating handle (15) is fixedly installed with limit block (17), the upper end surface of limit block (17) is a slope structure, side plate (7) is inserted on connecting bolt (18) and is close to the one side of wheel seat (1), the connecting bolt (18) between side plate (7) and wheel seat (1) is also screw threadedly connected with nut, the outer side of connecting bolt (18) is also sleeved with compression spring (19), one side of compression spring (19) is abutted on the one side of side plate (7), and the other side of compression spring (19) is abutted on the end of connecting bolt (18).

6. The ladder truck wheel with brake assembly of claim 5, wherein: Two sleeve rings (9) between fixedly connected with connecting rod (22), the outer side of connecting rod (22) is fixedly installed with operating plate (23), and the one end of two pressure levers (10) away from sleeve ring (9) is respectively abutted on corresponding wedge block (21).

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