Electric flat carriage locking device

Abstract

The utility model discloses an electric flat carriage locking device which comprises a support plate, a lifting screw rod, a clamping block and a pull rod, a screw rod guide frame is arranged on the side face of the support plate, a first nut is arranged on the top face of the screw rod guide frame, the lower end of the lifting screw rod is inserted to the position below the first nut from the top face of the screw rod guide frame, and the clamping block is arranged at the lower end of the pull rod. An anti-loosening tensioning mechanism is arranged between the lower end of the lifting screw and the upper end of the pull rod and comprises a pull ring, a spring and a spring supporting plate, the pull ring is rotationally connected with the lifting screw, the spring supporting plate is welded to the upper end of the pull rod, the spring is arranged between the pull ring and the spring supporting plate, and a guide groove is formed in the lower portion of the lifting screw. A guide head is arranged in the center of the upper end of the pull rod and inserted into the guide groove, and a hand wheel is arranged at the upper end of the lifting screw. According to the structure, the rail is hooked upwards through the clamping blocks, an upward clamping mode is adopted, the clamping effect is good, and the clamping device has the advantages of being simple in structure, safe, reliable, convenient and efficient to operate and low in labor intensity.

Description

Technical Field

[0001] The utility model relates to the technical field of flat car locking, in particular to an electric flat car locking device. Background Art

[0002] Electric flat car is a kind of electric transport vehicle in the factory. It is divided into two types: trackless and tracked. It is driven by a motor reducer and can also be used in conjunction with a dispatching system to achieve automated transportation. It is widely used in various industries.

[0003] The electric flat car runs on the track, and sometimes it needs to stop for operation. It is necessary to ensure that the electric flat car is locked and fixed on the track. The common rail clamps on the market generally realize the locking work by driving the clamping pliers through an oil cylinder. However, for some electric flat cars with simple structures, there is no need to adopt the expensive oil cylinder drive structure, and the current electric flat car locking device has a complex structure, troublesome operation, large size and high cost; Chinese patent application No. 202020158986.6 discloses a rail clamp, which belongs to a mechanical fixed connection equipment. The rail clamp includes a shell, a screw rod installed on the shell, a hinge block, a connecting hook plate and a grab hook plate. By turning the hand wheel, the screw rod is driven to rotate and the hinge block is driven up and down to realize the opening and closing movement of the grab hook plate. Although it is a manual drive method with simple structure and low cost, the structure adopted is that the connecting hook plate is connected to the grab hook plate by a moving shaft, which is similar to the form of a clamp, and is clamped in contact with the track from both sides. The structure is easy to loosen and the clamping is not firm. In view of the above-mentioned problems, an electric flat car locking device is proposed. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide an electric flat car locking device. The structure utilizes a clamping block to hook the track upwards and adopts an upward clamping method, which has a good clamping effect and has the advantages of simple structure, safety and reliability, convenient and efficient operation, and low labor intensity, and can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a locking device for an electric flat car, comprising a support plate, a lifting screw, a clamping block and a pull rod, a screw guide frame is arranged on the side of the support plate, a nut is arranged on the top surface of the screw guide frame, the lower end of the lifting screw is inserted from the top surface of the screw guide frame to the bottom of the nut, the clamping block is arranged at the lower end of the pull rod, an anti-loosening tensioning mechanism is arranged between the lower end of the lifting screw and the upper end of the pull rod, the anti-loosening tensioning mechanism comprises a pull ring, a spring and a spring support plate, the pull ring is rotatably connected to the lifting screw, the spring support plate is welded to the upper end of the pull rod, and the spring is arranged between the pull ring and the spring support plate.

[0006] Furthermore, a guide groove is arranged at the lower part of the lifting screw, a guide head is arranged at the center of the upper end of the pull rod, the guide head is inserted into the guide groove, and a hand wheel is arranged at the upper end of the lifting screw.

[0007] Furthermore, a nut 2 is provided at the lower end of the pull rod, a clamping block is passed through the pull rod, and the clamping block is provided between the nuts 2, and a bolt 1 is provided on the side of the nut 2.

[0008] Furthermore, a cover plate is arranged on the outer side of the screw guide frame, a connecting block is arranged on the side of the screw guide frame, and the second bolt passes through the cover plate and is screwed to the connecting block.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] 1. This structure uses a clamping block to hook the track upwards, adopts an upward clamping method, has a good clamping effect, has the advantages of simple structure, safety and reliability, convenient and efficient operation, and low labor intensity.

[0011] 2. The lifting screw is driven up by the hand wheel. When the clamp moves upward, the hook at the bottom hooks the track until the track is locked with the electric flat car and stops rotating. When locking, the spring is equivalent to a tension spring, which always keeps the clamp in a locked state, avoiding the conventional rigid locking structure. In addition, the structure is easy to disassemble and assemble as a whole, and the manufacturing cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the structure of the utility model.

[0014] In the figure: 1 hand wheel, 2 nut 1, 3 support plate, 4 lifting screw, 5 clamping block, 6 track, 7 nut 2, 8 bolt 1, 9 spring support ring, 10 spring, 11 pull ring, 12 pull rod, 13 screw guide frame, 14 guide groove, 15 guide head, 16 bolt 2, 17 cover plate, 18 connecting block. DETAILED DESCRIPTION

[0015] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0016] See also Figure 1-2The utility model provides a technical solution: an electric flat car locking device, including a support plate 3, a lifting screw 4, a clamping block 5 and a pull rod 12. A screw guide frame 13 is arranged on the side of the support plate 3, and a nut 2 is arranged on the top surface of the screw guide frame 13. The lower end of the lifting screw 4 is inserted from the top surface of the screw guide frame 13 to the bottom of the nut 2. When the lifting screw 4 is rotated, the lifting screw 4 will rotate and rise under the action of the nut 2. The clamping block 5 is arranged at the lower end of the pull rod 12, and an anti-loosening tensioning mechanism is arranged between the lower end of the lifting screw 4 and the upper end of the pull rod 12. The anti-loosening tensioning mechanism includes a pull ring 11, a spring 10 and a spring support plate 9. The pull ring 11 is rotatably connected to the lifting screw 4, and the pull ring 11 will not follow As the lifting screw 4 rotates, it will only rise with the lifting screw 4. A pressure bearing and a pressure sensor can be set between the pull ring 11 and the lower end of the lifting screw 4 to detect the tension of the spring. The structure can be set according to the specific situation. The spring support plate 9 is welded to the upper end of the pull rod 12. The spring 10 is set between the pull ring 11 and the spring support plate 9. The lifting screw 4 rotates and drives the lifting screw 4 upward under the action of the nut 2. The pull ring 11 rises and drives the spring 10 to expand and pull the pull rod 12 to rise. When the clamp 5 moves upward, the hook at the bottom of it hooks the track 6, and the electric flat wheel stops rotating. During the locking operation, the spring 10 is equivalent to a tension spring, which always keeps the clamp 5 in a locked state.

[0017] A guide groove 14 is provided at the lower part of the lifting screw 4, and a guide head 15 is provided at the center of the upper end of the pull rod 12. The guide head 15 is inserted into the guide groove 14. The guide head 15 cooperates with the guide groove 14 to guide the pull rod 12, so that it is stable during the movement and the locking effect is better. A hand wheel 1 is provided at the upper end of the lifting screw 4. The hand wheel 1 is convenient for rotating the lifting screw 4, making the operation convenient.

[0018] A nut 27 is provided at the lower end of the pull rod 12, and the clamp block 5 is passed through the pull rod 12, and the clamp block 5 is arranged between the nuts 27. A bolt 18 is provided on the side of the nut 27, and the nut 27 and the pull rod 12 can be locked by the bolt 18. There is a movable structure between the clamp block 5 and the pull rod 12, and the rotation of the pull rod 12 will not affect the clamp block 5, and it is also convenient for the disassembly of the clamp block 5.

[0019] A cover plate 17 is arranged on the outside of the screw guide frame 13, and a connecting block 18 is arranged on the side of the screw guide frame 13. The bolt 16 passes through the cover plate 17 and is screwed to the connecting block 18. The cover plate 17 protects the locking mechanism and makes the appearance beautiful.

[0020] During operation, the hand wheel 1 is turned, and the rotation of the hand wheel 1 drives the lifting screw 4 to rotate. The lifting screw 4 moves upward and drives the clamping block 5 to move upward together. When the clamping block 5 moves upward, the hook at the bottom of the clamping block 5 hooks the track 6 until the track 6 is locked with the electric flat car and stops rotating.

[0021] The basic principles, main features and advantages of the present invention are shown and described above. Without departing from the spirit and scope of the present invention, the present invention may also be subject to various changes and improvements, which are all within the scope of the present invention to be protected.

Claims

1. An electric flat car locking device, comprising a support plate (3), a lifting screw (4), a clamping block (5) and a pull rod (12), characterized in that: A screw guide frame (13) is arranged on the side of the support plate (3), a nut (2) is arranged on the top surface of the screw guide frame (13), the lower end of the lifting screw (4) is inserted from the top surface of the screw guide frame (13) to the bottom of the nut (2), the clamping block (5) is arranged at the lower end of the pull rod (12), an anti-loosening tensioning mechanism is arranged between the lower end of the lifting screw (4) and the upper end of the pull rod (12), the anti-loosening tensioning mechanism comprises a pull ring (11), a spring (10) and a spring support plate (9), the pull ring (11) is rotatably connected to the lifting screw (4), the spring support plate (9) is welded to the upper end of the pull rod (12), and the spring (10) is arranged between the pull ring (11) and the spring support plate (9).

2. The electric flat car locking device according to claim 1 is characterized in that: A guide groove (14) is provided at the lower part of the lifting screw rod (4), a guide head (15) is provided at the center of the upper end of the pull rod (12), the guide head (15) is inserted into the guide groove (14), and a hand wheel (1) is provided at the upper end of the lifting screw rod (4).

3. The locking device for an electric flat car according to claim 1 is characterized in that: A second nut (7) is arranged at the lower end of the pull rod (12), a clamping block (5) is passed through the pull rod (12), and the clamping block (5) is arranged between the second nut (7), and a first bolt (8) is arranged on the side of the second nut (7).

4. The locking device for an electric flat car according to claim 1 is characterized in that: A cover plate (17) is arranged on the outer side of the screw guide frame (13), a connecting block (18) is arranged on the side of the screw guide frame (13), and a second bolt (16) passes through the cover plate (17) and is screwed to the connecting block (18).

Images